Cache Creek Wilderness Preliminary Special

Transcription

Cache Creek Wilderness
Preliminary
Special-Status Plants Survey
Prepared By:
Ellen Dean and Craig Thomsen
UC Davis Center for Plant Diversity
Plant Sciences M.S. 7
One Shields Ave.
Davis, CA 95616
December, 2010
TABLE OF CONTENTS
Section
Page
Table of Contents ....................................................................................................................................................... i
Introduction ................................................................................................................................................................1
Methods ......................................................................................................................................................................1
Pre-field Investigation ............................................................................................................................................1
Field Survey methods .............................................................................................................................................4
Results ........................................................................................................................................................................6
Characterization of Climate, Geologic Features, and Soil Types.......................................................................6
Vegetation Patterns and Alliances......................................................................................................................8
Special-Status Plants Results............................................................................................................................11
Conclusions and Recommendations.........................................................................................................................21
References ................................................................................................................................................................22
Figures
1
Location and Boundaries of the Cache Creek Wilderness ...............................................................................2
2
Routes Used to Access the Cache Creek Wilderness for 2010 Field Survey ...................................................5
3
Special-Status Plants Encountered in Cache Creek Wilderness Area A .......................................................12
4
Special-Status Plants Encountered in Cache Creek Wilderness Area B ........................................................13
5
Special-Status Plants Encountered in Cache Creek Wilderness Area C ........................................................14
Appendices
A
Special-Status Plants Known or with Potential to Occur in the Cache Creek Wilderness
B
Plants Observed at Bear Creek Ranch and the Cache Creek Wilderness 2006-2010
C
Representative Photographs of Vegetation and Special-Status Plants Observed in the Cache Creek
Wilderness During the 2010 Survey
D
DFG California Native Species Field Survey Forms
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INTRODUCTION
This report describes the methods and results of a preliminary special-status plant survey performed for the
Bureau of Land Management (BLM) in the Cache Creek Wilderness (hereafter referred to as “the Wilderness”).
The 27,296 acre Wilderness is adjacent to the confluence of the north and south forks of Cache Creek within the
upper Cache Creek watershed, south of State Highway 20, west of the BLM Bear Creek Ranch, east of Morgan
Valley Road, and north of the Rieff-Rayhouse Road, in Lake County, California (Fig. 1). The Wilderness is
adjacent to a patchwork of state, federal, and private rural and natural lands. Walker Ridge and Bear Valley are
present north and northeast of the Wilderness. The University of California McLaughlin Reserve is located to the
south. Together, the Wilderness and the BLM Bear Creek Ranch form the Cache Creek Natural Area.
The primary purpose of this survey was to identify and map occurrences of special-status plants within the
Wilderness. In summary, eight California Rare Plant Rank list 1B special-status plants were encountered during
the field survey: adobe lily (Fritillaria pluriflora), Snow Mountain buckwheat (Eriogonum nervulosum), drymary
dwarf-flax (Hesperolinon drymarioides), Hall’s madia (Harmonia hallii), Socrates mine jewelflower
(Streptanthus brachiatus), Colusa tidy-tips (Layia septentrionalis), Jepson’s milkvetch (Astragalus rattanii var.
jepsonianus), and round-leaf stork’s bill (California macrophyllum). In addition, six California Rare Plant Rank
list 4 special-status plants were encountered: Cleveland’s ragwort (Packera clevelandii), serpentine collomia
(Collomia diversifolia), serpentine milkweed (Asclepias solanoana), bare monkey flower (Mimulus nudatus),
swamp larkspur (Delphinium uliginosum), and Cleveland’s milkvetch (Astragalus clevelandii).
METHODS
PRE-FIELD INVESTIGATION
Before conducting the survey, a list of special-status plants with potential to occur in the Wilderness was
compiled by performing database searches of the California Native Plant Society’s (CNPS’) Electronic Inventory
of Rare and Endangered Vascular Plants of California (CNPS 2010) and the California Department of Fish and
Game (DFG) California Natural Diversity Database (CNDDB 2010). The database searches included the
Benmore Canyon, Wilbur Springs, Salt Canyon, Lower Lake, Wilson Valley, Glascock Mtn., Middletown,
Jericho Valley, and Knoxville U.S. Geological Survey (USGS) 7.5 minute quadrangles. A survey package was
prepared, including photographs of and habitat summaries for all special-status plants likely to be encountered.
The survey packets were used to familiarize our field botanists with the characteristics and blooming periods of
special-status plants with potential to occur at the Wilderness.
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Figure 1. Location and Boundaries of the Cache Creek Wilderness
(Areas A, B, and C are enlarged in Figures 3, 4, and 5 to show the locations of special-status plants
encountered in the Wilderness)
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The special-status plant habitat summaries indicated that many of the special-status plants with potential to occur
at the Wilderness grow on serpentine soils. Therefore, we searched aerial photographs and Google Earth images
of the Wilderness for the blue signature of serpentine soils. Based on this information gathered from aerial
images, as well as previous knowledge of where certain special-status plants are likely to occur, we decided to
target the following areas of the Wilderness for visits: 1) the eastern edge of the Wilderness where heavy adobe
clay soils are present; 2) serpentine soil areas surrounding the Rocky Creek drainage; and 3) serpentine soil areas
at the southern boundary of the Wilderness at the terminus of the eastern forks of Rocky Creek Road (the area
known as Brushy Sky High on some maps). We confirmed our choices by examining soils maps and discussing
the geology of the area with soils experts.
Access to targeted areas in the Wilderness was challenging, because of the need to cross Cache Creek or private
lands. A preliminary visit to the southern boundary of the Wilderness was made on November 17, 2009 with
Pardee Bardwell of BLM, and we obtained names and phone numbers for several land owners in that area. We
then contacted the Lake County Assessor’s Office to obtain the addresses of key land owners on the southern
border of the Wilderness; we wrote letters to the land owners and provided them with our contact information. We
were fortunate that several land owners granted us permission to use their roads and cross their land. In addition,
Gordon Harrington, a member of our botany team, obtained the contact information for a land owner on the
northern side of the Wilderness; that land owner allowed us to cross his land, greatly reducing our hiking time on
that side of the Wilderness. The following is a summary of the contacts we made.

Stephen Gilardi, owner of parcels along the eastern fork of Rocky Creek Road: parcels 5, 6, and 7 in
Section 36, and parcels 49, 50 and 53 in Section 1. The road leading into his residence has a locked gate
that he and a neighbor (Charles Carlisle) control. His residence is often referred to as “Brushy Sky High”
on maps. Address: P.O. Box 1684, Lower Lake, CA 95457. Mr. Gilardi lives in Santa Rosa in the
wintertime. We used Mr. Gilardi’s road to access the Wilderness on the southeastern side twice.

Rick Foltz, owner and resident of parcel near large lake on southern boundary of the Wilderness. His road
is just to the west of Mr. Gilardi’s road. Phone number: 707-994-1584. He has access to an undeveloped
road leading upslope into the Wilderness on the southern side that we never used.

Carol Campbell, owner and resident of parcel near the terminus of the western fork of Rocky Creek Road
near the headwaters of Rocky Creek. The road leading to Ms. Campbell’s house has a locked gate with a
BLM lock on it. Phone number: 707-350-1868. We used Ms. Campbell’s road to access the Rocky Creek
drainage twice.
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
Nick Buffone, owner of parcels along the north fork of Cache Creek west of the confluence of the north
and south forks, including a well-maintained private road with a locked gate. Mr. Buffone lives in the Bay
Area. Work phone number: 510-783-5222. We crossed Mr. Buffone’s property on foot numerous times
but never unlocked the gate.
FIELD SURVEY METHODS
We visited the Wilderness on March 7, April 3 and 24, May 5 and 12, and June 9, 16 and 25, 2010 to perform a
preliminary special-status plant survey. Tracks showing our routes were recorded using a Garmin GPS (Figure 2).
Botanists who participated in the survey included Ellen Dean, Craig Thomsen, Gordon Harrington, Jack
Alderson, Tom Zavortink, Mark Bibbo, Lisa Serafini, John Chau, and Patrick McIntyre. The following areas were
accessed:
March 7: The middle portion of the Rocky Creek drainage; we crossed the north fork of Cache Creek twice,
traversed portions of the Redbud Trail, and walked cross-country to Rocky Creek.
April 3: Eastern edge of the Wilderness. From the Judge Davis Trailhead, we walked south on the Ridge Trail.
April 24: Wilson Valley, the confluence of Rocky and Cache Creeks, and portions of the lower reaches of Rocky
Creek. From the Redbud Trailhead we walked across private and public lands crossing Cache Creek four times.
May 5: Serpentine areas on the western side of the north fork of Cache Creek. Initially, we were attempting to
resurvey portions of the Wilderness visited in our March 7 hike, but could not cross Cache Creek (water levels too
high).
May 12: Southern edge of the Wilderness via Steve Gilardi’s property (he accompanied us and showed us trails).
Given the elevation at that end of the Wilderness, it was too early to find most plants in flower, but this visit
prepared us for a more fruitful survey on June 25.
June 9: West side of the north fork of Cache Creek. This was another attempt to retrace our March 7 hike, but we
were still unable to cross Cache Creek, despite data obtained from the Yolo Flood control district.
June 16: Southern edge of the Wilderness via the west forks of Rocky Creek Road and gated private road; we
climbed down the Rocky Creek drainage from south to north and back.
June 25: Southern edge of the Wilderness via Steve Gilardi’s property. We made a large loop, investigating the
serpentine drainages and slopes northwest of his property.
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Figure 2. Routes Used to Access the Cache Creek Wilderness for 2010 Field Surveys
Base Map Source: Google Earth, 2010
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Due to the challenges of needing to hike cross-country quickly in the Wilderness in order to access the areas we
wanted to search, it was difficult to identify and record all plants we passed during our surveys. Therefore, we
decided to use a recent plant list from the adjacent Bear Creek Ranch (Dean et al. 2009) as the basis of a plant list
for the Wilderness. Given the proximity, geologic history, and natural communities, it is likely that most of the
plants on the Bear Creek Ranch list occur in the Wilderness. We decided to only collect and identify plants that
we believed were new to the list. All plants collected were identified to the highest taxonomic level necessary.
Nomenclature and plant families used in the rare plant table and plant list in Appendices A and B mostly follows
the 1993 edition of the Jepson Manual, Higher Plants of California (Hickman 1993), however special-status plant
names and some other names were updated to the nomenclature that is being used by the Jepson Flora Project
(available online 2010). Most plants new to the list were pressed, labeled and added to the herbarium at the UC
Davis Center for Plant Diversity.
It was difficult to document and classify all vegetation types that we encountered while walking cross country in
the Wilderness. Producing a comprehensive vegetation map was beyond the scope of this project, and no
vegetation plots were sampled. However, photographs and notes were taken in the field to provide a general
description of the Wilderness vegetation. The vegetation of the site was classified using the Manual of California
Vegetation (Sawyer et al. 2009).
When special-status plants were encountered, their locations were recorded as decimal degrees coordinate points
in the field using a Garmin GPS. With the assistance of James Weigand (BLM), the point files were used to create a
map showing the distribution of special-status plants encountered in the Wilderness.
RESULTS
CHARACTERIZATION OF CLIMATE, GEOLOGIC FEATURES, AND SOIL TYPES
The climate in Lake County is characterized by cool, wet winters and warm, dry summers, with an average annual
temperature (near Clear Lake) of about 56 degrees. The average daily maximum temperature in summer is 91
degrees with an average daily minimum winter temperature of 44 degrees (Lakeport). Average rainfall for the
Wilderness region is about 27 inches annually. The first freeze in fall commonly occurs from the middle of
October to the middle of November with the last freeze in spring usually occurring from the last week of April to
the middle of May (Hatfield 1989).
The Wilderness is located at elevations ranging from approximately 850 feet above sea level within the Cache
Creek drainage to more than 2,800 feet near its southern boundary. The geologic features of the Wilderness
include: the Cache Formation, forming much of the northern portion, with non-marine Pleistocene lake and
stream bed materials composed of pebbly sandstone, conglomerate, siltstone and tuff, and dating back 10,000 to 6
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million years; the Coast Range Ophiolite—ultramafic rock that is partly serpentinized—forming most of the
central portion of the Wilderness, dating back about 150 million years (Jurassic); and the Great Valley Sequence,
covering much of the east and southwest portions, with marine mudstones, siltstones, sandstones and
conglomerates from the late Mesozoic age, 140-165 million years old. The Great Valley Sequence comprises both
the Lower Cretaceous Great Valley Sequence, which forms much of the eastern boundary, and the Lower
Cretaceous-Upper Jurassic Great Valley Sequence, which is interspersed within the Wilderness. Soil types
associated with the geologic features in the Wilderness are numerous. There are five soil complexes/associations
that are part of the Cache Formation, 15 that are part of the Great Valley sequence, three associated with the
Coast Range Ophiolite, and two that are recent alluvial deposits (Table 1; NRCS 2010; pers. comm. with Dr. R.
Southard).
Table 1. Soils of the Cache Creek Wilderness
Soils of the Cache Formation
Badland; Bally-Phipps complex, 15-30% slopes; Bally-Phipps-Haploxeralfs association, 30-75% slopes;
Phipps complex, 5-15%; Phipps complex, 30-50% slopes
Great Valley Sequence
Bressa-Millsholm loams, 8-15% slopes; Maymen-Etsel-Mayacama complex, 30-75% slopes; MaymenEtsel-Snook complex, 15-30%, hills and mountains; Maymen-Etsel-Snook complex, 30-75% slopes;
Maymen-Hopland-Etsel association, 15-50% slopes, mountains; Maymen-Hopland-Mayacama
association, 30-50% slopes; Maymen-Hopland-Mayacama association, 50-75% slopes; MaymenMillshom-Bressa complex, 30-50% slopes; Rock-outcrop-Etsel-Snook complex, 50-80% slopes; SkyhighAsbill complex, 15-30%; Skyhigh-Millsholm loams, 15-50% slopes; Skyhigh-Sleeper-Millsholm
association, 15-30% slopes; Skyhigh-Sleeper-Millsholm association, 30-50% slopes; Sleeper VariantSleeper loams, 5-15%; Sleeper Variant-Sleeper loams, 15-30% slopes
Coast Range Ophiolite
Henneke-Montara-Rock outcrop complex, 15-50% slopes; Henneke-Okiota complex, 30-50% slopes;
Okiota-Henneke complex, 5-30% slopes
Recent alluvial deposits
Riverwash. This map unit is in active stream channels, 0-5% slopes; Xerofluvents-Riverwash complex, 02% slopes
Many of the special-status plants that we encountered during the 2010 surveys grow on serpentine soils of the
Henneke-Montara-Rock outcrop complex of the Coast Range Ophiolite. These soils occupy an extensive area in
the southern/central part of the Wilderness, including parts of the Rocky Creek drainage and the area known as
Brushy Sky High. The Wilderness’s Henneke-Okiota complex serpentine soils (also Coast Range Ophiolite)
could not be explored this field season but are known to support special-status plants at the adjacent BLM Bear
Creek Ranch and elsewhere. The soils of the Phipps complex (Cache Creek Formation) found on both sides of the
south fork of Cache Creek and the west side of Rocky Creek, which are derived from alluvium (including
serpentine-derived alluvium), provide habitat for a three special-status plants. Skyhigh-Sleeper-Millsholm soils of
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the Great Valley Sequence found along the eastern border of the Wilderness adjacent to Bear Creek Ranch have
pockets of adobe clay soil that support round-leaf stork’s bill.
VEGETATION PATTERNS AND ALLIANCES
Statewide (and nationwide), there is an effort to describe vegetation based on the dominance of a single-species
within a given stand, referred to as “alliances” (Sawyer et al. 2009). As stated previously, a vegetation alliance
map for the Wilderness was beyond the scope of this project, and we did not do any vegetation sampling.
Nevertheless, to provide a preliminary description of Wilderness vegetation, we developed a provisional list of 25
published and unpublished alliances that we observed along with their rarity rankings (Table 2). We used the
2009 Manual of California Vegetation to classify the vegetation we encountered, and we had the following usage
problems: 1) there is no minimum mapping unit provided in the classification; 2) we encountered vegetation
assemblages not described in the classification; 3) we encountered assemblages with no clear dominant.
Photographs of many of these alliances are provided in Appendix C. Descriptions of unpublished alliances follow.
Table 2. Provisional Vegetation Alliances Observed in the Wilderness*
Alliance Name
Woodland alliances
Callitropsis (Hesperocyparis)
sargentii
Pinus attenuata
Pinus sabiniana
Populus fremontii
Quercus chrysolepis
Quercus douglasii
Quercus lobata
Salix laevigata
Shrubland alliances
Adenostoma fasciculatum
Arcostaphylos viscida ssp.
pulchella
Baccharis pilularis
Baccharis salicifolia
Ceanothus jepsonii
Eriogonum wrightii
Quercus beberidifolia
Quercus durata
Rhus trilobata
Salix breweri
Salix exigua
Rarity
Ranking
G3 S3.2
G4 S4
G4 S4
G4 S3.2
G5 S5
G4 S4
G3 S3
G3 S3
G5 S5
G4 S4
G5 S5
G5 S4
G3 S3
G4 S4
G4 S4
G4 S3?
G2 S2
G5 S4.2
Alliance Name
Herbaceous alliances
Avena-Bromus
Carex nudata
Carex serratodens
Centaurea solstitialis
Lasthenia californica-Plantago
erecta
Vulpia microstachys
Rarity
Ranking
G3 S3
G3 S3
G4 S4
Unpublished alliances
Achyrachaena mollis
Apocynum cannabinum
Juncus ensifolius
Micropus californicus
Saccharum ravennae
Taeniatherum caput-medusae
Mixed assemblages with no clear dominant
Mixed serpentine chaparral
Mixed chaparral
Native prairie
G1 - G3 code = rare and threatened throughout its range
G4 - G5 with S1 - S3 code = secure through its range outside the state but rare and threatened in California
G4 - G5 with S4 - S5 = apparently or demonstrably secure throughout its range
*Descriptions of published alliances can be found in Sawyer et al. 2009.
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UNPUBLISHED ALLIANCES
Native Unpublished Alliances
Achyrachaena mollis and Micropus californicus Provisional Alliances
Among the undescribed alliances that we observed were dense stands of the native annual herbaceous plants blow
wives (Achyrachaena mollis) and slender cottonweed (Micropus californicus) on non-serpentine soils. These
assemblages may be “unique stands,” i.e., having never formed sufficient number of stands or a broad enough
range to be considered their own alliance (Alexander et al. 2007). It is also possible that these stands are remnant
prairie assemblages that were more prevalent prior to the widespread invasion of non-native plants into prairiegrassland communities, or perhaps they are only variants of larger prairie-grassland types that have mostly
disappeared. Species associated with the Achyrachaena mollis alliance were farewell-to-spring (Clarkia sp.),
miniature lupine (Lupinus bicolor), chick lupine (L. microcarpus var. densiflorus), slender cottonweed, California
plantain (Plantago erecta), pine bluegrass (Poa secunda), notchleaf clover (Trifolium bifidum), and small fescue
(Vulpia microstachys). Species associated with the Micropus californicus alliance included blowwives, yarrow
(Achillea millefolium), jeweled onion (Allium serra), pale western larkspur (Delphinium hesperium), bottlebrush
squirreltail (Elymus elymoides), California melicgrass (Melica californica), small flowered needlegrass (Nassella
lepida), California plantain, pine bluegrass, wireweed (Rigiopappus leptocladus), and small fescue.
Apocynum cannabinum Provisional Alliance
We observed large stands of Indian hemp (Apocynum cannabinum), an uncommon species with ethnobotanical
significance, along the upper reaches of Rocky Creek. Whether these native assemblages were large enough to
constitute an actual alliance is uncertain, but they are clearly important examples of California’s native vegetation.
Juncus ensifolius Provisional Alliance
In the southern part of the wilderness near Brushy Sky High on serpentine soils, adjacent to a spring within a
Sargent cypress (Hesperocyparis sargentii) woodland, we encountered a monoculture of three-stamened rush
(Juncus ensifolius). Again, it is unclear whether this occurrence was large enough to constitute an alliance.
Nonnative Unpublished Alliances
Two non-native species, Ravenna grass (Saccharum ravennae) and medusahead (Taeniatherum caput-medusae),
reach abundance levels high enough to constitute consideration as alliances. Ravenna grass is a regional weed
problem (Thomsen and Meyer 2007), forming extensive stands along Cache Creek, including areas of the
Wilderness. Some of the prairie-grassland assemblages within the Wilderness support large stands of
Medusahead. As this species is a common dominant in California grasslands, it is unclear why Medusahead was
not included as a non-native “semi-natural” alliance within the new 2009 California Manual of Vegetation.
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UNCLASSIFIED ASSEMBLAGES AND SIGNIFICANT BOTANICAL FEATURES
Problematic from a classification perspective were the extensive stands of mixed serpentine and non-serpentine
chaparral that we encountered in the Wilderness. Since “membership rules” for shrub alliances often require one
species to cover at least 50% of a given stand, the diverse mixtures of species that exist within some observed
stands of mixed chaparral defy classification into discrete single-species alliance units. Mixed serpentine
chaparral in the Wilderness typically included the following assemblage of shrub species: whiteleaf manzanita
(Arctostaphylos viscida), Jepson ceanothus (Ceanothus jepsonii), toyon (Heteromeles arbutifolia), buckthorn and
relatives (Rhamnus spp.), leatheroak (Quercus durata), chamise (Adenostoma fasciculatum), Interior silktassel
(Garrya congdonii), California bay (Umbellularia californica), poison oak (Toxicodendron diversifolium), and, in
places, cypress (Hesperocyparis spp.). Perhaps the extreme example of this was encountered in a two-acre area of
serpentine-influenced soil near Brushy Sky High where we observed 17 different shrub species without any
tendency towards dominance by one or more shrubs (see photo Appendix C). In addition to those already listed
above for mixed serpentine chaparral, this area included the following shrubs: redbud, mountain mahogany,
California ash (Fraxinus dipetala), chaparral pea (Pickeringia montana), shrub oak (Quercus berberidifolia), and
snowdrop bush (Styrax officinalis var. redivivus). Grasses and forbs associated with this area included:
bottlebrush squirreltail, California fescue (Festuca californica), golden fairy lantern (Calochortus amabilis), soap
plant (Chlorogalum pomeridianum), peregrine thistle (Cirsium cymosum), red ribbons (Clarkia concinnum),
woolly sunflower (Eriophyllum lanatum), dwarf flax (Hesperolinon spp.), phlox-leaved bedstraw (Galium
andrewsii), lomatium (Lomatium spp.), coyote mint (Monardella villosa), and blue-eyed grass (Sisyrinchium
bellum).
Similarly, a native prairie on serpentine soil just above Rocky Creek with nine native grasses and a rich
assortment of forbs (see photo Appendix C) is another example of a rare native plant assemblage that doesn’t fall
within any alliance status but warrants recognition as another significant botanical feature within the Wilderness.
Native grasses encountered in this prairie were: woodland brome (Bromus laevipes), blue wildrye (Elymus
glaucus), bottlebrush squirreltail, Roemer’s fescue (Festuca idahoensis var. roemeri), meadow barley (Hordeum
brachyantherum), creeping wildrye (Leymus triticoides), purple needlegrass (Nassella pulchra), pine bluegrass,
and small fescue. Associated forbs included: California dandelion (Agoseris grandiflora), narrow-leaved onion
(Allium amplectens), narrow leaf milkweed (Asclepias fascicularis), harvest brodiaea (Brodiaea elegans), yellow
mariposa (Calochortus superbus), soap plant, peregrine thistle, bird’s beak (Cordylanthus sp.), hayfield tarweed
(Hemizonia congesta ssp. luzulaefolia), little hareleaf (Lagophylla minor), short-podded lotus (Lotus humistratus),
Chilean birdfoot trefoil (Lotus wrangelianus), chick lupine, slender cottonweed, yampah (Perideridia sp.),
buttercup (Ranunculus sp.), fringed checkerbloom (Sidalcea diploscypha), blue-eyed grass, clover species, narrow
leaf mule ears (Wyethia angustifolia), and death camas (Zigadenus sp.).
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We encountered extensive serpentine barrens with reddish serpentine soils near Brushy Sky High; this was one of
the most significant finds of the survey. The dry slopes of the interior of the eastern side of the barrens were
mostly devoid of vegetation with the exception of two species of jewelflower (Streptanthus brachiatus and S.
breweri) and three species of buckwheat (Eriogonum nervulosum, E. nudum and E. dasyanthemum). Serpentine
milkweed was observed in one area, the only known location in the Wilderness. Some of the drainages within the
barrens have an abundance of water, including several waterfalls. The serpentine riparian flora associated with the
drainages located in the interior and western side of the barrens included the shrubs western azalea
(Rhododendron occidentalis), Brewer’s willow (Salix breweri), spicebush (Calycanthus occidentalis), and
California buckthorn (Rhamnus tomentella); the mixed herbaceous layer included: angelica (Angelica spp.),
Cleveland’s ragwort, Cleveland’s milkvetch, Van Houtte’s columbine (Aquilegia eximia) , two tooth sedge
(Carex serratodens), stream orchid (Epipactus gigantean), and goldenrod (Solidago). Within parts of this area,
two tree species were co-dominant and represented a previously undocumented alliance association: knobcone
pine (Pinus attenuata)-Sargent cypress (Hesperocyparis sargentii).
SPECIAL-STATUS PLANTS RESULTS
Special-status plants are defined as plants that are legally protected or that are otherwise considered sensitive by
federal, state, or local resource conservation agencies and organizations. Special-status plant taxa are species,
subspecies or varieties that fall into one or more of the following categories, regardless of their legal or protection
status:
►
Officially listed by the state of California or the federal government as Endangered, Threatened or Rare;
►
A candidate for state or federal listing as Endangered, Threatened or Rare;
►
Taxa which meet the criteria for listing, even if not currently included on any list, as described in Section
15380 of the California Environmental Quality Act (CEQA) Guidelines;
►
Taxa designated as a special-status, sensitive or declining species by other state or federal agencies or
non-governmental organizations; and
►
Taxa considered by the DFG and CNPS to be “presumed extinct” (California Rare Plant Rank [Rare Plant
Rank] List 1A) or “rare, threatened or endangered in California” (Rare Plant Rank 1B and 2).
The CNPS Inventory includes five lists for categorizing plant species of concern, which are summarized below.
All plants listed in the CNPS Electronic Inventory of Rare and Endangered Vascular Plants of California (CNPS
2010) are considered "special plants" by DFG and are addressed in this report. “Special plants” is a broad term
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Figure 3. Special-Status Plants Encountered in Area A of the Cache Creek Wilderness
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Figure 4. Special-Status Plants Encountered in Area B of the Cache Creek Wilderness
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Figure 5. Special-Status Plants Encountered in Area C of the Cache Creek Wilderness
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used by DFG to refer to all of the plant taxa inventoried by the CNDDB, regardless of their legal or protection
status. The CNPS/DFG lists are categorized as follows:
►
Rare Plant Rank 1A - Plants presumed extinct in California;
►
Rare Plant Rank 1B - Plants rare, threatened, or endangered in California and elsewhere;
►
Rare Plant Rank 2 - Plants rare, threatened, or endangered in California but more common elsewhere;
►
Rare Plant Rank 3 - Plants about which we need more information - a review list; and
►
Rare Plant Rank 4 - Plants of limited distribution - a watch list.
Based on the pre-field investigation, 23 special-status plants (Rare Plant Rank 1B or state- or federallyendangered) were identified as having potential to occur in the Wilderness. Appendix A provides a list of these
species along with information about their listing status, habitat, distribution, flowering period, and potential to
occur in the Wilderness (CNPS 2010; CNDDB 2010; CCH 2010).
Eight Rare Plant Rank 1B special-status plants were encountered during the 2010 field survey (Figs. 3-5):
Jepson’s milkvetch (Astragalus rattanii var. jepsonianus), round-leaf stork’s bill (California macrophyllum),
Snow Mountain buckwheat (Eriogonum nervulosum), adobe lily (Fritillaria pluriflora), Hall’s layia (Harmonia
hallii), drymary dwarf-flax (Hesperolinon drymarioides), Colusa tidy-tips (Layia septentrionalis), and jewel
flower (Streptanthus brachiatus). In addition six Rare Plant Rank 4 plants were documented (Figs. 3-5):
Cleveland’s ragwort (Packera clevelandii), serpentine collomia (Collomia diversifolia), serpentine milkweed
(Asclepias solanoana), bare monkey flower (Mimulus nudatus), swamp larkspur (Delphinium uliginosum), and
Cleveland’s milkvetch (Astragalus clevelandii). The special-status plant occurrences are described below.
Photographs of the List 1B plants encountered are provided in Appendix C. Completed DFG California Native Species
Field Survey Forms for List 1B plants are provided in Appendix D.
RARE PLANT RANK 1B PLANTS:
Jepson’s Milkvetch
Jepson’s milkvetch (Astragalus rattanii var. jepsonianus) is a member of the Fabaceae family and is a Rare Plant
Rank 1B.2 plant (CNPS 2010). It is an annual plant with a slender, decumbent to erect stem to 30 cm tall,
compound leaves with seven to nine blunt-tipped leaflets, and flowers borne in heads of four to nine flowers. The
hairs on the plant are often blackish. The flowers are purple and white (Hickman 1993), and the plants bloom
from March through June (CNPS 2010). Jepson’s milkvetch is often found on serpentine soils at 350 – 600 m in
elevation within the southern area of the Inner North Coast Ranges of California (Hickman 1993). It grows in
chaparral, cismontane woodland, and valley and foothill grasslands plant communities (CNPS 2010). It has been
found in Colusa, Glenn, Lake, Napa, Tehama, Yolo and Mendocino counties (CNPS 2010, CCH 2010, CNDDB
2010).
15
December, 2010
We encountered Jepson’s milkvetch during April, May and June, 2010 in several areas of the Wilderness (Figs. 3
and 4). The first occurrence was a diffuse population found April 24 on the serpentine-influenced alluvial deposits
of the lower reaches of Rocky Creek at approximately 900 feet. Numerous plants were observed in small clusters
of approximately ten plants along the sides of the creek; all plants were in flower. The second occurrence was a
very small population (three flowering plants) observed on April 24 on a gravel terrace on the south side of Cache
Creek east of the confluence of the north and south forks. The third and fourth occurrences were on serpentine
deposits on east-facing slopes above the north fork of Cache Creek at approximately 1,100 -1,250 feet. The third
occurrence, which consisted of approximately 5,000 flowering plants, was encountered on May 5. The fourth
occurrence, encountered on June 9, consisted of fewer than 100 fruiting plants. The fifth occurrence was located
at approximately 2500 feet on serpentine barrens near the southern boundary of the Wilderness to the west of
Rocky Creek; this small population of ca. 50 plants was in flower and fruit.
Where we observed Jepson’s milkvetch in the Wilderness, it grew in areas where vegetation is nearly absent or in
sparse annual grassland assemblages. The first and second occurrences along Cache and Rocky Creeks suggest
that the seeds were being washed down from upper slopes and deposited at the creek edges. Therefore, larger
populations probably occur elsewhere in the Wilderness on serpentine influenced slopes above the creeks.
Round-leaf stork’s bill
Round-leaf stork’s bill (California macrophyllum formerly known as Erodium macrophyllum) is a member of the
geranium family (Geraniaceae) and is a Rare Plant Rank 1B.1 plant (CNPS 2010). It is an inconspicuous, winter
annual that has simple, kidney-shaped, basal leaves with reddish veins. The stem is less than 5 cm tall and
glandular-puberulent. The small, white flowers self-pollinate and are very short-lived, generally lasting for only
one day. The fruits develop quickly and have a distinctive beak (Hickman 1993, Gillespie 2005). Round-leaf
stork’s bill is found on open sites within grassland and shrubland communities at elevations below 1200 m (CNPS
2010) and is restricted to clay soils (Gillespie 2005). The species is broadly distributed, but rarely encountered; in
some cases, county records are based on collections made in the first half of the 20th century (CCH 2010). Its
current and historical distribution encompasses the Sacramento Valley, northern San Joaquin Valley, central
western California, the southern coast of California and the northern Channel Islands (specifically Santa Cruz
Island) (Hickman 1993). It has been documented in Alameda, Butte, Contra Costa, Colusa, Fresno, Glenn, Kings,
Kern, Lake, Lassen, Los Angeles, Merced, Monterey, Napa, Riverside, Santa Barbara, San Benito, Santa Clara,
San Diego, San Joaquin, San Luis Obispo, San Mateo, Solano, Sonoma, Stanislaus, Tehama, Ventura, and Yolo
counties, as well as Baja California and Oregon (CNPS 2010, CCH 2010, CNDDB 2010). Round-leaf stork’s bill
blooms from March through May.
We encountered Round-leaf stork’s bill in full flower on April 3, 2010 along the eastern boundary of the
Wilderness, adjacent to the BLM Bear Creek Ranch. We found four occurrences on the west side of the Ridge
16
December, 2010
Trail and one on the east side (Fig. 5). In all cases, the plants were growing on 5-30% slopes in deep, clay soils
within 50 feet of a drainage. In many cases, very deep cattle hoof prints were visible where the plants were
growing, indicating that the soil had been very wet. In most cases, white mudstone rocks were present on the soil
surface. Surrounding vegetation was either annual grassland or open, blue oak woodland; in all cases ground
cover was less than 50%, with the plants occurring in open soil. Common associates included annual grasses,
especially medusahead, common lomatium (Lomatium utriculatum), redstem filaree (Erodium cicutarium),
shortfruit stork’s bill (Erodium brachycarpum), broad leaf filaree (Erodium botrys), cut leaved geranium
(Geranium disssectum), few flowered evax (Hesperevax sparsiflora), and smooth cat’s ear (Hypochaeris glabra).
Populations ranged from 500 to more than 5000 individuals.
Snow Mountain buckwheat
Snow Mountain buckwheat (Eriogonum nervulosum), a member of the buckwheat family (Polygonaceae), is a
Rare Plant Rank 1B.2 plant (CNPS 2010). It is a matted subshrub to 15 cm tall with small leaves (that are woolly
on the underside) arranged in rosettes. The small yellow-to-reddish flowers are arranged in rounded umbellate
clusters (Hickman 1993). The species is found on serpentine barrens or outcrops at 300 – 2100 m in elevation
(Hickman 1993, CNPS 2010). It is known to occur in the North Coast Ranges in Colusa, Glenn, Lake, Napa,
Sonoma, and Yolo counties (CCH 2010, CNPS 2010). Snow Mountain buckwheat blooms from June to
September (CNPS 2010).
We documented Snow Mountain buckwheat on an extensive system of serpentine barrens at 2,200-2,400 feet in
elevation near the southern edge of the Wilderness on June 25, 2010 (Fig. 4). Thousands of plants were present,
occupying numerous hillslopes and ridges. Approximately 30-70% of the plants were in flower, depending on the
subpopulation. Common associates were Socrates Mine jewelflower (Streptanthus brachiatus), naked buckwheat
(Eriogonum nudum) and chaparral buckwheat (E. dasyanthemum); serpentine milkweed (Asclepias solanoana)
was also present in one area.
Adobe Lily
Adobe lily (Fritillaria pluriflora), a member of the lily family (Liliaceae), is a Rare Plant Rank 1B.2 plant (CNPS
2010). It is a perennial geophyte that emerges each spring from an underground bulb. The stem is 1.5 – 4.5 dm in
length and has 3 – 10 alternately-arranged leaves that are clustered near the ground. The flowers are nodding and
pinkish purple in color. The species is found on adobe soils of the interior foothills (Hickman 1993) at elevations
of less than 705 m in chaparral, cismontane woodland, and valley grassland vegetation types (CNPS 2010).
Adobe lily’s distribution encompasses the Inner North Coast Ranges, Sierra Nevada Foothills, the perimeter of the
Sacramento Valley, and southern Oregon (Hickman 1993), and it has been documented in eleven California
17
December, 2010
counties: Butte, Colusa, Glenn, Lake, Napa, Solano, Tehama, Mendocino and Yolo (CNPS 2010, CCH 2010,
CNDDB 2010). Adobe lily blooms from February to April (CNPS 2010).
In the Wilderness, we encountered Adobe lily at 1,300 to 1,400 feet in elevation in a serpentine meadow to the
west of the Rocky Creek drainage (Fig. 3). The location had deep clay soils, a flowing stream, and numerous
seeps. Adobe lily was concentrated on the edges of rocky outcrops in gentle (10-30%) slopes within grassland.
Associates included medusa head and other native and nonnative annual grasses, buttercup (Ranunculus sp.), and
larkspur (Delphinium sp.). We accessed this location on March 3, 2010 when the Adobe lily plants were just
beginning to emerge and few were in flower. At that time, we estimated that there were approximately 400 plants
in numerous subpopulations, although this number probably underestimates the population size. We attempted to
return to this site twice to re-estimate the size of the population and search for other special-status plants but could
not cross Cache Creek.
Hall’s Layia (Harmonia hallii)
Hall’s layia (Harmonia hallii or Madia hallii), a member of the tarweed tribe in the daisy family (Asteraceae), is a
Rare Plant Rank 1B.2 plant (CNPS 2010). It is a glandular, annual herb to 18 cm with few branches and leaves
crowded into whorl-like clusters. Its yellow flowers are in a small head, and its fruits lack any appendages
(Hickman 1993). Hall’s layia is found on serpentine barrens in open chaparral between 500 and 900 meters in
elevation and has been documented in Colusa, Lake, Napa, and Yolo counties. It blooms from April to June
(CNPS 2010).
Hall’s layia was encountered in only one restricted location at 2,565 feet in elevation in the center of and along
the sides of an unpaved road through serpentine chaparral near the southern boundary of the Wilderness (Fig. 4).
The road on which it was located descends from Stephen Gilardi’s property to Cache Creek. This segment of the
road had a southeastern exposure and a warmer microclimate than surrounding areas. The chaparral vegetation
included Jepson’s ceanothus (Ceanothus jepsonii), chaparral buckwheat (Eriogonum dasyanthemum), sickleleaf
onion (Allium falcifolium), leather oak (Quercus durata), whiteleaf manzanita (Arctostaphylos viscida), and
drymary dwarf-flax. There were approximately 100 plants in full flower.
Drymary Dwarf-flax
Drymary dwarf-flax (Hesperolinon drymarioides) is a member of the linen family (Linaceae) and a Rare Plant
Rank 1B.2 plant. It is a delicate, annual herb that grows to 25 cm tall and has whorled leaves. Its small, white
flowers are arranged in a diffuse, forking inflorescence. Its distribution is concentrated in the inner North Coast
Ranges. It has been documented in Colusa, Glenn, Lake, Napa, and Yolo counties. It occurs on serpentine soils in
coniferous forest, chaparral, cismontane woodland, and valley and foothill grassland at 100 – 1130 m in elevation.
Drymary dwarf-flax blooms from May to August.
18
December, 2010
We encountered Drymary dwarf-flax near the southern Wilderness boundary on May 12 and June 25, 2010 (Fig.
4). It occurs there between 2,500 and 2,600 feet in elevation north and west of Stephen Gilardi’s property. It was
growing on open, disturbed serpentine soils along unpaved roads within chaparral. Chaparral associates are the
same as listed above for Hall’s layia. Herbaceous associates included Hall’s layia, sickleleaf onion, chaparral
willowherb (Epilobium minutum), short podded lotus (Lotus humistratus), and four-petaled pussypaws
(Calyptridium quadripetalum). The population was extensive and consisted of thousands of plants. On the May 12
visit, all plants were vegetative. On the June 25 visit, all plants were in flower.
Colusa Tidy-tips
Colusa tidy-tips (Layia septentrionalis) is a member of the tarweed tribe in the daisy family (Asteraceae) and a
Rare Plant Rank 1B.2 plant. It is an annual herb that grows to 35 cm tall and has sticky, glandular hairs on its
stem, leaves, and yellow flower heads. An important character that separates it from other species of tarweed is
having woolly hairs at the base of its fruit appendages. Its distribution is concentrated in the North Coast Ranges,
extending east to Sutter County. It has been documented in Colusa, Glenn, Lake, Mendocino, Napa, Sonoma,
Sutter, Tehama, and Yolo counties. It occurs in chaparral, cismontane woodland, valley and foothill grassland on
sandy or serpentine-influenced soils at 100 – 1095 m in elevation. Colusa tidy-tips blooms from April to May.
We encountered Colusa tidy-tips in two areas of the Wilderness. The first occurrence was found on April 24,
2010 at ca. 1,100 ft in elevation in annual grassland within blue oak woodland on a peninsular ridge that protrudes
into the Cache Creek watershed on the south side of the creek west of the confluence of Rocky and Cache Creeks
(Fig. 3). The soil type did not appear to be derived from serpentine, but downslope from the occurrence, on the
east side of the ridge, serpentine deposits were evident on the south side of Cache Creek. The population
consisted of ca. 300 plants with most plants in full flower.
The second occurrence was encountered on May 5, 2010 between 1140 and 1238 feet in elevation on a northeastfacing slope of a serpentine-influenced ridge on the west side of the north fork of Cache Creek (Fig. 3). The
Colusa tidy-tips plants were growing in the partial shade of a blue oak woodland adjacent to an open serpentine
barrens with sparse annual grasses. The population consisted of at least 10,000 plants and was growing with
jeweled onion (Allium serra), slender tarweed (Madia gracilis), Ithuriel’s spear (Triteleia laxa), succulent lupine
(Lupinus succulentus), and foothill clover (Trifolium ciliolatum).
Socrates Mine Jewelflower
Socrates Mine jewelflower (Streptanthus brachiatus), a member of the mustard family (Brassicaceae), is a Rare
Plant Rank 1B.2 plant (CNPS 2010). This species has been broken down into two rare subspecies in the past (both
List 1B.2), but these subspecies are no longer recognized (Jepson Herbarium 2010). Samples of Socrates Mine
19
December, 2010
jewelflower that we encountered in the Wilderness were sent to the taxonomic expert of this group, Ishan AlShebaz, at the Missouri Botanical Garden for determination.
Socrates Mine jewelflower is a biennial herb to 60 cm tall that is branched near the base; characteristically, it
produces rosettes of leaves the first year and then produces a flowering stalk the next year. The flowers are urnshaped with yellowish-purple sepals and white and purple petals. The fruits have constrictions between the seeds
(Jepson Herbarium 2010). The species is found on serpentine barrens or outcrops at 600 – 950 m in elevation
(Jepson Herbarium 2010). It is known to occur in the North Coast Ranges in Lake, Napa, and Sonoma counties
(CCH 2010, CNPS 2010). Socrates mine jewelflower blooms from May to July (CNPS 2010).
Socrates Mine Jewel flower was encountered on an extensive system of serpentine barrens at ca, 2,200-2,500 feet
in elevation near the southern edge of the Wilderness in June, 2010 (Fig. 4). Thousands of plants were present on
numerous hillslopes and ridges. Approximately 30-70% of the plants were in flower, depending on the
subpopulation. Common associates were naked buckwheat (Eriogonum nudum) and chaparral buckwheat (E.
dasyanthemum); in some areas serpentine milkweed (Asclepias solanoana), Brewer's jewelflower (Streptanthus
breweri), and Snow Mountain buckwheat grew with Socrates Mine jewelflower.
RARE PLANT RANK 4 PLANTS
Serpentine Milkweed
Serpentine milkweed (Asclepias solanoana), a perennial herb in the dogbane/milkweed family, Apocynaceae, was
encountered on one slope of the serpentine barrens near Brushy Sky High on June 25, 2010 (Fig. 4). This
prostrate, grey-leaved plant was present in small numbers growing with jewelflower and buckwheat species.
Serpentine milkweed is known to occur in Colusa, Glenn, Lake, Mendocino, Napa, Shasta, Sonoma,
Tehama, Trinity, and Yolo counties, usually on serpentine soils, from 230 – 1860 meters; in the various parts of it
range, serpentine milkweed is known to flower from May to August (CNPS 2010). The plants we observed were
in full flower.
Cleveland’s Milkvetch
Cleveland’s milkvetch (Astragalus clevelandii), a perennial herb in the pea family, Fabaceae, was occasionally
encountered along both Rocky Creek and the drainages of the serpentine barrens near Brushy Sky High on June
16 and 25, 2010 (Fig. 4). This erect, pinnately-leaved plant was present in small numbers at the edges of creeks.
Cleveland’s milkvetch is known to occur in Colusa, Lake, Napa, San Benito, Sonoma, Tehama, and Yolo
counties, usually on serpentine soils, from 200 to 1500 meters; in the various parts of it range, Cleveland’s
milkvetch is known to flower from June to September (CNPS 2010). None of the plants we encountered were in
flower.
20
December, 2010
Serpentine Collomia
Serpentine collomia (Collomia diversifolia), in the phlox family, Polemoniaceae, was encountered on June 16 and
25 in small numbers on gravelly, open, serpentine soils along the northern reaches of Rocky Creek and in the
barrens area near Brushy Sky High (Fig. 4). This small, compact, pink-flowered, annual herb occurs on serpentine
soils in Contra Costa, Colusa, Glenn, Lake, Mendocino, Napa, Shasta, Stanislaus, and Yolo counties from 300 to
600 meters; in the various parts of its range, serpentine collomia is known to flower from May to June (CNPS
2010). The plants we encountered were in fruit.
Swamp Larkspur
Swamp larkspur (Delphinium uliginosum), in the buttercup family, Ranunculaceae, was encountered on June 16,
2010 in small numbers in a very wet meadow/seep along one small stretch of Rocky Creek where a tributary
deposits serpentine alluvium on the eastern side of the creek (Fig. 4). This erect, purple-flowered perennial herb
occurs in Colusa, Lake, Napa, and Siskiyou counties from 340 to 610 meters; swamp larkspur is known to flower
from May to June (CNPS 2010). The plants were in full flower when encountered in June.
Bare Monkey Flower
Bare monkey flower (Mimulus nudatus) in the figwort family, Scrophulariaceae, was encountered in very small
numbers in one serpentine seep within a Sargent cypress woodland near Brushy Sky High on June 25, 2010 (Fig.
4). This small, yellow-flowered, annual herb occurs in Colusa, Lake, Mendocino, and Napa counties from 250 to
700 meters; bare monkey flower is known to flower from May to June (CNPS 2010, and the plants we observed
were in full flower.
Cleveland’s Ragwort
Cleveland’s ragwort (Packera clevelandii or Senecio clevelandii) in the daisy family, Asteraceae, was
encountered in small numbers along drainages in the serpentine barrens area near Brushy Sky High on June 25,
2010 (Fig. 4). This perennial herb with spoon-shaped basal leaves occurs in Colusa, Lake, and Napa counties
from 365 to 900 meters; this species is known to flower from June to July (CNPS 2010), although it was not yet in
flower during our June survey.
CONCLUSIONS AND RECOMMENDATIONS
Although, the 2010 survey was exploratory and limited in scope, we documented eight Rare Plant Rank 1B and
six List 4 plants. Due to its remoteness and terrain, access into many areas was difficult, and some routes into the
Wilderness were restricted due to the high water flows released into Cache Creek in May and June. Beyond what
we observed, we are confident that other special-status plants occur within the Wilderness, or at least, additional
21
December, 2010
populations of the special-status plants reported in this report. And while our vegetation alliance information is
provisional, eight of our suspected 25 alliances have either some global or state rarity, and others may constitute
“unique stands” or remnant assemblages of herbaceous native vegetation that have lost ground throughout the
state. The complexity of the geologic substrates, soils, and vegetation of the Wilderness warrants a more in-depth
investigation on alliances, other vegetation assemblages, and rare plants.
Priority areas for additional rare plant exploration are the serpentine soils of the Coast Range Ophiolite, such as
those surrounding the Rocky Creek drainage, the serpentine barrens near Brushy Sky High, and the soils of
Petrified Canyon. Also, there is a serpentine-influenced meadow with adobe lily on the west side of Rocky Creek
south of the Redbud Trail that deserves additional visits. At a minimum, we are sure that future investigators
would find pink cream sacs (Castilleja rubicundula ssp. rubicundula) in that location, if the meadow could be
accessed in May. In addition, the serpentine-influenced slopes surrounding the waterfall of Dead Man’s Canyon
look very promising when viewed from across Cache Creek.
ACKNOWLEDGEMENTS
We thank: Jack Alderson, Gordon Harrington, Mark Bibbo, Thomas Zavortink, Lisa Serafini, John Chau, and
Patrick McIntyre for assistance in the field; Pardee Bardwell and the staff of the BLM for assistance in applying
for funding and logistical help; James Weigand for making figures 1, 3, 4 and 5; and Stephen Gilardi, Rick Foltz,
Nick Buffone, and Carol Campbell for allowing us access to the Wilderness through their lands. We also thank
Jean Shepard and the student assistants of the Center for Plant Diversity for curatorial help and the staff of the UC
Davis Department of Plant Sciences for administrative help.
REFERENCES
Alexander, E.B., R.G. Coleman, T. Keeler-Wolf, and S. Harrington 2007. Serpentine Vegetation of Western
North America. pp. 204-256. In: Serpentine Geoecology of Western North America, Oxford Press.
CalFlora. 2010. CalFlora database. Available at: http://www.calflora.org/. Update information not available.
Accessed numerous times in 2010.
California Natural Diversity Data Base (CNDDB). 2010. [January]. Results of electronic record search. California
Department of Fish and Game, Wildlife and Habitat Data Analysis Branch. Sacramento, CA.
California Native Plant Society (CNPS). 2010. Electronic Inventory of Rare and Endangered Vascular Plants of
California. Available: <http://northcoast.com/~cnps/cgi-bin/cnps/sensinv.cgi>. Accessed January 29,
2010 for special-status plant search as well as numerous times in the fall of 2010 for report writing.
22
December, 2010
Consortium of California Herbaria (CCH). 2010. Consortium of California Herbaria Data Portal with data
provided by the participants of the Consortium of California Herbaria. Available:
www.ucjeps.berkeley.edu/consortium/.
Dean, E., C. Thomsen, G. Harrington, and J. Alderson. 2009. Plant list for BLM Bear Creek Ranch, Colusa
County, California. Available at http://herbarium.ucdavis.edu.
Hatfield 1989. Climate of Lake County. In: Soil Survey of Lake County California, USDA.
Hickman, J.C. (ed). 1993. The Jepson Manual: Higher Plants of California. University of California Press,
Berkeley and Los Angeles California.
Jepson Herbarium. 2010. On-line key for Streptanthus by Ihsan Al-Shehbaz. Jepson Flora Project. Available at:
http://ucjeps.berkeley.edu/tjm2/review/treatments/brassicaceae_all.html#10626.
Moores, E. 2002. Geology of the Bear Creek Watershed, Northern Coast Ranges, California. Unpublished
document. 10 pp.
NRCS. 2010. Soil Survey of Lake County, available from the Natural Resources Conservation System at:
http://websoilsurvey.nrcs.usda.gov/app/ WebSoilSurvey.aspx.
Randal Southard. Pers. Com. Soil discussions between Craig Thomsen and Dr. Randal Southard, Dept. of Land
Air and Water Resources, University of California, Davis, August, 2010.
Sawyer, T. Keeler-Wolf, and J. Evens. 2009. Manual of California Vegetation. California Native Plant Society,
Sacramento, California.
Thomsen, C. and T. Meyer. 2007. Ravennagrass: a major wildland weed along Cache Creek. Cal-IPC News
15(3):5-6.
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December, 2010
APPENDIX A
Special-Status Plants Known or with Potential to Occur
In the Cache Creek Wilderness
Special-Status Plant Survey
Species
Amsinckia lunaris
bent-flowered
fiddleneck
Arctostaphylos
canescens ssp.
sonomensis
Rincon manzanita
Astragalus rattanii var.
jepsonianus
Jepson’s milk-vetch
Appendix A
Status
Habitat and Blooming Period
Distribution
Potential for Occurrence
USFWS
DFG
CRPR
Likely to occur in Wilderness.
--1B.2
Coastal bluff scrub, cismontane
Alameda, Contra Costa,
woodland, valley and foothill grassland; Colusa, Lake, Marin, Napa,
Known to occur on adjacent
3 - 500 m. Blooms March – June.
San Benito, Santa Clara, Santa Bear Creek Ranch.
Cruz, San Mateo, Yolo
counties.
--1B.2
Chaparral, lower montane coniferous
Colusa, Humboldt, Lake,
Could occur.
forest/sometimes serpentinite; 180 Mendocino, Sonoma, Tehama,
1675 m. Blooms January – June.
Trinity counties.
--
1B.2
Chaparral, cismontane woodland,
valley and foothill grassland/often
serpentinite; 320 - 700 m. Blooms
March – June.
Colusa, Glenn, Lake, Napa,
Tehama, Yolo counties.
Encountered in Wilderness in
2010.
Atriplex joaquiniana
San Joaquin spearscale
--
--
1B.2
Alkali sink, alkali meadows and seeps,
playas, in valley and foothill grassland;
1-835 m. Blooms April – October.
Known to occur on adjacent
Bear Creek Ranch.
Balsamorhiza
macrolepis var.
macrolepis
big-scale balsamroot
--
--
1B.2
valley and foothill grassland/sometimes
serpentinite; 90 - 1555 m. Blooms
March – June.
Brodiaea coronaria ssp.
rosea
Indian Valley brodiaea
--
E
1B.1
Closed-cone coniferous forest,
chaparral, cismontane woodland, valley
and foothill grassland/serpentinite; 335
- 1450 m. Blooms May - June.
Alameda, Contra Costa,
Colusa, Fresno, Glenn,
Merced, Monterey, Napa, San
Benito, Santa Clara, San
Joaquin, San Luis Obispo,
Solano, Tulare, Yolo counties.
Alameda, Butte, Colusa, El
Dorado, Lake, Mariposa,
Napa, Placer, Santa Clara,
Solano, Sonoma, Tehama
counties.
Colusa, Glenn, Lake, Tehama
counties.
A-1
--
December, 2010
Sources: CNDDB 2010, CNPS 2010, Dean et al. 2009, Jepson Herbarium 2010, and Hickman 1993
Known to occur on Walker
Ridge.
Known to occur on Walker
Ridge.
Species
California macrophylla
round leaved stork’s bill
Castilleja rubicundula
ssp. rubicundula
pink creamsacs
A-1
Centromadia parryi
ssp. parryi
pappose tarplant
Cryptantha excavata
deep scarred cryptantha
December, 2010
Eriogonum nervulosum
Snow Mountain
buckwheat
Appendix A
Status
Distribution
USFWS
DFG
CRPR
--1B.1
Cismontane woodland, valley and
Alameda, Butte, Contra Costa, Encountered in Wilderness in
foothill grassland/clay; 15 - 1200 m.
Colusa, Fresno, Glenn, Kings, 2010.
Blooms March – May.
Kern, Lake, Lassen, Los
Angeles, Merced, Monterey,
Napa, Riverside, Santa
Barbara, San Benito, Santa
Clara, Santa Cruz Isl., San
Diego, San Joaquin, San Luis
Obispo, San Mateo, Solano,
Sonoma, Stanislaus, Tehama,
Ventura, and Yolo counties;
Baja California; Oregon.
--1B.2
Chaparral (openings), cismontane
Butte, Colusa, Glenn, Lake,
High likelihood. Occurs in
woodland, meadows and seeps, valley
Napa, Santa Clara, and Shasta large numbers on adjacent
and foothill grassland/serpentinite; 20 - counties.
Bear Creek Ranch.
900 m. Blooms April – June.
--1B.2
Chaparral, coastal prairie, meadows and Butte, Colusa, Glenn, Lake,
Unlikely to occur, unless
seeps, marshes and swamps (coastal
Napa, San Mateo, Solano, and saline plains are found. Occurs
salt), valley and foothill grassland
Sonoma counties.
on adjacent Bear Creek Ranch
(vernally mesic)/often alkaline; 2 – 420
along Bear Creek.
m. Blooms May –November.
--1B.3
Cismontane woodland (sandy or
Colusa, Lake, Mendocino, and Could occur. Occurs on
gravelly); 100 - 500 m. Blooms April – Yolo counties.
Walker Ridge.
May.
--
--
1B.2
Chaparral (serpentinite); 300 – 2105 m.
Blooms June – September.
Sonoma, and Yolo counties.
2010.
Species
Fritillaria pluriflora
adobe lily
Appendix A
Status
Distribution
USFWS
DFG
CRPR
--1B.2
Butte, Colusa, Glenn, Lake,
valley and foothill grassland/often
Napa, Solano, Tehama, and
2010.
adobe; 60 - 705 m. Blooms February –
Yolo counties.
April.
A-1
December, 2010
Harmonia hallii
Hall’s madia
--
--
1B.2
Blooms April – June.
Colusa, Lake, Napa, and Yolo
counties.
2010.
Hesperolinon
serpentinum
two carpellate western
flax
Hesperolinon
didymocarpum
Lake County western
flax
Hesperolinon
drymariodies
drymary dwarf-flax
--
--
1B.1
Blooms May – July.
Alameda, Lake, Napa, and
Stanislaus counties.
Could occur.
--
E
1B.2
Lake county.
Could occur.
--
--
1B.2
valley and foothill
grassland/serpentinite; 330 – 365 m.
Blooms May – July.
Closed-cone coniferous forest,
chaparral, cismontane woodland, valley
and foothill grassland/serpentinite; 100
– 1130 m. Blooms May – August.
and Yolo counties.
2010.
Horkelia bolanderi
Bolander’s horkelia
--
--
1B.2
Colusa, Lake, and Mendocino
counties.
Could occur.
Layia septentrionalis
Colusa tidy-tips
--
--
1B.2
Chaparral, lower montane coniferous
forest, meadows and seeps, valley and
foothill grassland/edges, vernally
mesic areas; 450 – 1100 m. Blooms
June – August.
valley and foothill grassland/sandy,
serpentinite; 100 – 1095 m. Blooms
April – May.
Colusa, Glenn, Lake,
Mendocino, Napa, Sonoma,
Sutter, Tehama, and Yolo
counties.
2010.
Sources: CNDDB 20109, CNPS 2010, Dean et al. 2009, and Hickman 1993
Species
Leptosiphon jepsonii
Jepson’s leptosiphon
Appendix A
Status
Distribution
USFWS
DFG
CNPS
--1B.2
Chaparral, cismontane
Lake, Napa, and Sonoma
Could occur.
woodland/usually volcanic; 100 – 500
counties.
m. Blooms March – May.
A-1
Sidalcea keckii
Keck’s checkerbloom
E
--
1B.1
Cismontane woodland, valley and
foothill grassland/serpentinite, clay;
120 – 425 m. Blooms April – May.
Colusa, Fresno, Merced, Napa,
Solano, Tulare, and Yolo
counties.
Could occur.
Streptanthus brachiatus
Socrates Mine
jewelflower
Streptanthus breweri
var. hesperidus
green jewel flower
Streptanthus morrisonii
ssp. elatus
three peaks jewel
flower
--
--
1B.2
counties.
2010.
--
--
1B.2
Glenn, Lake, Napa, and
Sonoma counties.
Could occur.
--
--
1B.2
Chaparral. Serpentine barrens or
outcrops; 600 – 950 m. Blooms May –
July.
Chaparral (openings), cismontane
woodland/serpentinite, rocky; 130 –
760 m. Blooms May – July.
Blooms June – September.
counties.
Could occur.
Streptanthus morrisonii
ssp. kruckebergii
Kruckeberg’s jewel
flower
--
--
1B.2
Cismontane woodland (serpentinite);
215 – 1035 m. Blooms April – July.
counties.
Could occur.
December, 2010
APPENDIX B
Plants Observed at Bear Creek Ranch or the Cache Creek Wilderness
During 2006-2010
Appendix B
Plants Observed at Bear Creek Ranch or Cache Creek Wilderness between 2006-2010
2
Collected
at Bear
Creek
Ranch3
Collected
at Cache
Creek
Wilderness
Observed in
Wilderness
Scientific Name
Common Name
ACERACEAE
Acer macrophyllum
big leaf maple
y
y
ALISMATACEAE
Alisma plantago-aquatica
water plantain
y
y
ANACARDIACEAE
Rhus trilobata
Toxicodendron diversilobum
sour berry
poison oak
y
observed
y
y
APIACEAE
Angelica californica
Angelica tomentosa
*Conium maculatum
Daucus pusillus
Eryngium aristulatum var.
aristulatum
Lomatium californicum
Lomatium ciliolatum var. hooveri1
Lomatium dasycarpum ssp.
dasycarpum
Lomatium macrocarpum
Lomatium marginatum
Lomatium utriculatum
Perideridia kelloggii
Sanicula bipinnatifida
Sanicula crassicaulis
Sanicula tuberosa
*Torilis arvensis
*Torilis nodosa
Yabea microcarpa
California angelica
woolly angelica
poison hemlock
rattlesnake weed
Jepson's button celery
y
y
y
y
y
California lomatium
Hoover's lomatium
woolly fruited lomatium
y
y
y
bigseed biscuitroot
tall hog fennel
common lomatium
Kellogg's yampah
snakeroot
Pacific sanicle
tuberous sanicle
field hedge parsley
knotted hedge parsley
false carrot
y
y
y
y
y
y
y
y
y
APOCYNACEAE
Apocynum cannabinum
Indian hemp
y
ASCLEPIADACEAE
Asclepias eriocarpa
Asclepias fascicularis
Asclepias solanoana 1
Asclepias speciosa
Kotolo milkweed
narrow leaf milkweed
serpentine milkweed
showy milkweed
y
ASTERACEAE
Achillea millefolium
common yarrow
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
Appendix B
2
Collected
at Bear
Creek
Ranch3
Scientific Name
Common Name
Achyrachaena mollis
Agoseris grandiflora
Agoseris heterophylla
Ambrosia psilostachya
Ancistrocarphus filagineus
*Anthemis cotula
Artemisia douglasiana
Baccharis pilularis
Baccharis salicifolia
Brickellia californica
Calycadenia fremontii
Calycadenia pauciflora
*Carduus pycnocephalus
*Centaurea calcitrapa
*Centaurea melitensis
*Centaurea solstitialis
Centromadia (Hemizonia) fitchii
Centromadia (Hemizonia) parryi 1
Centromadia (Hemizonia) parryi
spp. Parryi 1
Centromadia (Hemizonia) pungens
Chaenactis glabriuscula
*Chamomilla suaveolens
Cirsium cymosum
Cirsium occidentale var. venustum
*Cirsium vulgare
Eriophyllum lanatum
Eriophyllum lanatum var.
achillaeoides
Euthamia occidentalis
Filago gallica
Gnaphalium palustre
Grindelia camporum var. camporum
Grindelia hirsutula
Gutierrezia californica
Harmonia hallii 1
*Hedypnois cretica
Helianthus annuus
Helianthus bolanderi
Hemizonia congesta ssp. luzulifolia
Hesperevax sparsiflora var.
sparsiflora
Heterotheca oregona
blow wives
California dandelion
annual mountain dandelion
western ragweed
woolly fishhooks
stinking chamomile
Douglas' sagewort
dwarf chaparral broom
mulefat
brickell bush
Klamath calycadenia
small flowered calycadenia
Italian thistle
purple star thistle
tocalote
yellow star thistle
Fitch's tarweed
pappose tarweed
pappose tarweed
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
common tarweed
common yellow chaenactis
pineapple weed
peregrine thistle
Venus thistle
bull thistle
common woolly sunflower
woolly sunflower
y
y
y
y
y
y
y
y
western goldentop
California cottonrose
western marsh cudweed
Great Valley gumweed
hairy gumweed
California matchweed
Hall’s madia
crete weed
sunflower
serpentine sunflower
hayfield tarweed
few flowered evax
y
compact Oregon goldenaster
Collected
at Cache
Creek
Wilderness
Observed in
Wilderness
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
Appendix B
2
Scientific Name
Common Name
Holocarpha virgata ssp. virgata
*Hypochaeris glabra
Iva axillaris var. robustior
*Lactuca saligna
*Lactuca serriola
Lagophylla minor
Lagophylla ramosissima
Lasthenia californica
Lasthenia gracilis
Lasthenia glabrata ssp. glabrata
Layia chrysanthemoides
Layia platyglossa
Layia septentrionalis 1
*Leontodon taraxacoides ssp.
taraxacoides
Lessingia nemaclada
Lessingia ramulosa
Lessingia ramulosa x L. nemaclada
Madia citriodora
Madia exigua
Madia gracilis ssp. gracilis
Madia sativa
Malacothrix floccifera
Micropus californicus
Microseris douglasii ssp. tenella
Microseris douglasii ssp. douglasii
Monolopia major
Packera (Senecio) clevelandii 1
Packera (Senecio) greenei
Pseudognaphalium (Gnaphalium)
californicum
Pseudognaphalium (Gnaphalium)
luteo-album
Psilocarphus tenellus
Rafinesquia californica
Rigiopappus leptocladus
*Senecio vulgaris
Solidago elongata (canadensis ssp.
elongata)
Solidago velutina ssp. californica
(californica)
*Sonchus asper
*Sonchus oleraceus
narrow tarplant
smooth cat's ear
poverty weed
narrow leaved wild lettuce
prickly lettuce
little hareleaf
common hareleaf
California goldfields
needle goldfields
yellowray goldfields
smooth tidy tips
common tidy tips
Colusa tidy-tips
lesser hawkbit
slender-stemmed Lessingia
Sonoma lessingia
Collected
at Bear
Creek
Ranch3
Collected
at Cache
Creek
Wilderness
y
y
y
y
Observed in
Wilderness
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
lemon scented tarweed
meager tarweed
slender tarweed
coast tarweed
woolly dandelion
micropus
short scaled microseris
Douglas' silverpuffs
cupped monolopia
Cleveland's ragwort
flame ragwort
California cudweed
y
y
y
y
y
y
y
y
y
y
y
everlasting cudweed
y
slender woolly marbles
California plumseed
wireweed
old man in the Spring
meadow Goldenrod
y
California goldenrod
y
y
spiny sowthistle
sow thistle
y
y
y
y
y
Appendix B
2
Collected
at Bear
Creek
Ranch3
Scientific Name
Common Name
Stephanomeria virgata ssp.
pleurocarpa
Symphyotrichum (Aster) chilense
*Tragopogon dubius
*Tragopogon porrifolius
Uropappus lindleyi
Wyethia angustifolia
Wyethia helenioides
Xanthium strumarium
wand wirelettuce
y
Pacific aster
yellow salsify
salsify
uropappus
narrow leaf mule ears
whitehead wyethia
rough cockleburr
y
BORAGINACEAE
Amsinckia lunaris 1
Amsinckia menziesii var. menziesii
Amsinckia menziesii var. intermedia
Cryptantha flaccida
Cryptantha hispidula
Cryptantha intermedia
Cynoglossum grande
Heliotropium curassavicum
Pectocarya pusilla
Plagiobothrys bracteatus
Plagiobothrys canescens
Plagiobothrys fulvus
Plagiobothrys greenei
Plagiobothrys humistratus
Plagiobothrys nothofulvus
Plagiobothrys stipitatus var.
micranthus
Plagiobothrys stipitatus var.
stipitatus
BRASSICACEAE
Athysanus pusillus var. pusillus
*Brassica nigra
*Brassica rapa
*Capsella bursa-pastoris
Cardamine oligosperma
*Cardaria draba
Draba verna
Draba sp.
Erysimum capitatum
Guillenia flavescens
Guillenia lasiophylla
Collected
at Cache
Creek
Wilderness
Observed in
Wilderness
y
y
y
y
y
y
y
bent flowered fiddleneck
rigid fiddleneck
common fiddleneck
flaccid cryptantha
Napa cryptantha
Clearwater cryptantha
western houndstongue
heliotrope
little combseed
bracted popcornflower
valley popcorn flower
common popcorn flower
Greene's popcornflower
dwarf allocarya
rusty popcornflower
common vernal pool
allocarya
vernal pool allocarya
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
common sandweed
black mustard
field mustard
shepherd's purse
bitter cress
hoary cress
spring draba
draba
western wallflower
yellow mustard
California mustard
y
y
y
y
y
y
y
observed
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
Appendix B
2
Collected
at Bear
Creek
Ranch3
Scientific Name
Common Name
Heterodraba unilateralis
*Hirschfeldia incana
*Lepidium latifolium
Lepidium latipes var. latipes
Lepidium nitidum
Rorippa curvisiliqua
Rorippa nasturtium-aquaticum
*Sinapis arvensis
*Sisymbrium altissimum
*Sisymbrium irio
Streptanthus brachiatus 1
Streptanthus breweri var. breweri
Thysanocarpus curvipes var.
curvipes
ladiestongue mustard
short pod mustard
broad leaved pepper grass
dwarf pepper grass
peppergrass
western yellowcress
watercress
charlock
tall tumblemustard
London rocket
Socrates Mine jewelflower
Brewer's jewelflower
hairy lacepod
y
y
y
y
y
y
CALYCANTHACEAE
Calycanthus occidentalis
Collected
at Cache
Creek
Wilderness
Observed in
Wilderness
y
y
y
y
y
y
y
y
y
y
y
y
y
spice bush
y
y
y
CAMPANULACEAE
Heterocodon rariflorum
Nemacladus montanus
rareflower heterocodon
mountain nemacladus
y
y
y
CAPRIFOLIACEAE
Lonicera interrupta
Sambucus mexicana
Symphoricarpos albus
chaparral honeysuckle
blue elderberry
snowberry
y
y
y
y
y
y
CARYOPHYLLACEAE
*Cerastium glomeratum
Minuartia douglasii
*Petrorhagia dubia
*Scleranthus annuus
Silene californica
Silene campanulata var. glandulosa
*Spergula arvensis var. arvensis
*Stellaria media
Stellaria nitens
*Stellaria pallida
*Velezia rigida
sticky chickweed
sandwort
pink grass
German knotgrass
California Indian pink
bell catchfly
corn spurry
common chickweed
shining chickweed
pale starwort
Velezia
y
y
y
CHENOPODIACEAE
Atriplex argentea
Atriplex fruticulosa
silver saltweed
valley saltbush
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
Appendix B
2
Scientific Name
Common Name
Atriplex joaquiniana 1
*Chenopodium ambrosioides
Chenopodium californicum
San Joaquin spearscale
Mexican tea
California goosefoot
CONVOLVULACEAE
Calystegia collina
Calystegia collina ssp. collina
Calistegia collina ssp. oxyphylla 1
Collected
at Bear
Creek
Ranch3
y
*Convolvulus arvensis
CORNACEAE
Cornus glabrata
brown dogwood
CRASSULACEAE
Crassula connata
Dudleya cymosa
pygmy weed
canyon dudleya
y
y
CUCURBITACEAE
Marah fabaceus
Marah watsonii
wild cucumber
manroot
y
y
CUSCUTACEAE
Cuscuta californica var. californica
CYPERACEAE
Bolboschoenus maritimus
Carex praegracilis
Carex nudata
Carex serratodens
Cyperus sp.
Eleocharis macrostachya
Eleocharis parishii
Schoenoplectus acutus var.
occidentalis
Schoenoplectus pungens var.
longispicata
Observed in
Wilderness
y
y
y
y
y
y
y
y
y
hillside morning glory
coast range false bindweed
Mount Saint Helena morning
glory
bindweed
CUPRESSACEAE
Hesperocyparis (Cupressus)
macnabiana
Hesperocyparis (Cupressus)
sargentii
Juniperus californica
Collected
at Cache
Creek
Wilderness
y
y
y
y
y
Macnab cypress
y
y
Sargent cypress
y
y
y
y
y
y
y
y
y
y
California juniper
y
chaparral dodder
y
alkali bulrush
clustered field sedge
Dudley's sedge
two tooth sedge
flatsedge
common spikerush
Parish's spikerush
hardstem bulrush
y
y
y
y
observed
y
y
y
common threesquare
y
Appendix B
2
Collected
at Bear
Creek
Ranch3
Collected
at Cache
Creek
Wilderness
Observed in
Wilderness
Scientific Name
Common Name
DATISCACEAE
Datisca glomerata
Durango root
y
y
DIPSACACEAE
*Dipsacus fullonum
Fullers' teasel
y
y
ELATINACEAE
Elatine rubella
southwestern waterwort
y
EQUISITACEAE
Equisetum arvense
Equisetum telmateia
Common Horsetail
giant horsetail
observed
ERICACEAE
Arctostaphylos glandulosa
Arctostaphylos manzanita
Arctostaphylos viscida
Arctostaphylos viscida ssp. pulchella
Eastwood's manzanita
Common manzanita
whiteleaf manzanita
whiteleaf manzanita
Rhododendron occidentale
western azalea
EUPHORBIACEAE
Chamaesyce serpyllifolia
Eremocarpus setigerus
Euphorbia crenulata
Euphorbia spathulata
thyme leafed spurge
turkey mullein
Chinese caps
warty spurge
y
y
y
y
FABACEAE
Astragalus clevelandii 1
Astragalus gambelianus
Astragalus rattanii var. jepsonianus 1
Cercis occidentalis
Glycyrrhiza lepidota
Hoita macrostachya
*Lathyrus hirsutus
Lathyrus vestitus
*Lotus corniculatus
Lotus denticulatus
Lotus humistratus
Lotus purshianus
Lotus scoparius
Lotus wrangelianus
Lupinus albifrons var. albifrons
Cleveland's milk vetch
Gambel's dwarf milk vetch
Jepson's milk vetch
redbud
wild licorice
leather root
rough pea
Pacific pea
broadleaf birdsfoot trefoil
riverbar bird's foot trefoil
short podded Lotus
Spanish clover
deerweed
Chilean bird's foot trefoil
silver lupine
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
Appendix B
2
Scientific Name
Common Name
Lupinus bicolor
Lupinus latifolius
Lupinus luteolus
Lupinus microcarpus var. densiflorus
Lupinus microcarpus var.
microcarpus
Lupinus succulentus
* Medicago minima
* Medicago polymorpha
* Melilotus albus
* Melilotus indica
* Melilotus officinalis
Pediomelum californicum
Pickeringia montana
Thermopsis macrophylla
Trifolium albopurpureum var.
albopurpureum
Trifolium bifidum var. bifidum
Trifolium ciliolatum
Trifolium depauperatum
Trifolium depauperatum var.
truncatum
*Trifolium dubium
Trifolium fucatum
*Trifolium glomeratum
Trifolium gracilentum var.
gracilentum
*Trifolium hirtum
*Trifolium incarnatum
Trifolium microcephalum
Trifolium microdon
Trifolium obtusiflorum
*Trifolium vesiculosum
Trifolium willdenovii
*Trifolium subterraneum
Vicia americana var. americana
*Vicia sativa
*Vicia villosa
miniature lupine
broadleaf lupine
pale yellow lupine
chick lupine
valley lupine
FAGACEAE
Quercus berberidifolia
Quercus chrysolepis
Quercus douglasii
Quercus durata
Collected
at Bear
Creek
Ranch3
Collected
at Cache
Creek
Wilderness
y
y
y
y
y
succulent lupine
bur clover
bur medic
white sweetclover
annual yellow sweetclover
yellow sweetclover
California Indian breadroot
chaparral pea
Santa Inez goldenbanner
Indian clover
y
y
y
y
y
y
y
y
notchleaf clover
foothill clover
pale sack clover
dwarf sack clover
y
y
y
y
shamrock
sour clover
clustered clover
pinpoint clover
y
y
y
observed
rose clover
crimson clover
maiden clover
Valparaiso clover
clammy clover
arrowleaf clover
tomcat clover
subterranean clover
American vetch
spring vetch
hairy vetch
y
y
y
y
y
y
y
y
y
scrub oak
canyon live oak
blue oak
leather oak
y
y
y
y
Observed in
Wilderness
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
Appendix B
2
Collected
at Bear
Creek
Ranch3
Collected
at Cache
Creek
Wilderness
Observed in
Wilderness
Scientific Name
Common Name
Quercus lobata
Quercus wislizeni
Quercus wislizeni var. frutescens
Valley oak
interior live oak
bush interior live oak
y
y
y
FRANKENIACEAE
Frankenia salina
alkali heath
observed
GARRYACEAE
Garrya congdonii
Interior silktassel
y
y
y
GENTIANACEAE
Centaurium muehlenbergii
Centaurium trichanthum
Centaurium venustum
Muhlenberg's centaury
alkali centaury
canchalagua
y
y
y
y
y
GERANIACEAE
*Erodium botrys
* Erodium brachycarpum
* Erodium cicutarium
California/Erodium macrophyllum 1
* Erodium moschatum
*Geranium dissectum
*Geranium molle
broad leaf filaree
shortfruit stork's bill
redstem filaree
round-leaf stork’s bill
white stemmed filaree
cut leaved geranium
dovefoot geranium
observed
y
y
y
y
y
y
GROSSULARIACEAE
Ribes malvaceum
chaparral currant
y
HIPPOCASTANACEAE
Aesculus californica
California buckeye
y
HYDROCHARITACEAE
*Najas graminea
grass leaved water nymph
y
HYDROPHYLLACEAE
Emmenanthe penduliflora
Eriodictyon californicum
Nemophila heterophylla
Nemophila menziesii
Nemophila pedunculata
Phacelia divaricata
Phacelia imbricata
whispering bells
yerba santa,
small baby blue eyes
baby blue eyes
littlefoot nemophila
divaricate phacelia
imbricate phacelia
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
Appendix B
2
Collected
at Bear
Creek
Ranch3
Scientific Name
Common Name
IRIDACEAE
Iris macrosiphon
Sisyrinchium bellum
long tubed iris
blue eyed grass
y
JUGLANDACEAE
Juglans californica var. hindsii 1
California walnut
y
JUNCACEAE
Juncus arcticus
Juncus arcticus var. balticus
Juncus arcticus var. mexicanus
*Juncus bufonius
Juncus ensifolius
Juncus xiphioides
Arctic rush
Baltic rush
Mexican rush
toad rush
three stamened rush
irisleaf rush
y
y
y
y
LAMIACEAE
*Lamium amplexicaule
Lepechinia calycina
*Marrubium vulgare
*Mentha sp.
Monardella villosa
Salvia columbariae
Scutellaria antirrhinoides
Scutellaria californica
Scutellaria siphocampyloides
Stachys albens
Stachys stricta
Trichostema lanceolatum
Trichostema laxum
henbit
white pitcher sage
horehound
mint
coyote mint
chia
snapdragon skullcap
California skullcap
curve flowered skullcap
white hedge nettle
Sonoma hedgenettle
vinegarweed
turpentine weed
y
y
y
y
y
y
y
y
y
LAURACEAE
Umbellularia californica
California laurel
y
LILIACEAE
Allium amplectens
Allium falcifolium
Allium fimbriatum var. purdyi 1
Allium serra
Brodiaea elegans ssp. elegans
Calochortus amabilis
Calochortus luteus
Calochortus splendens
Calochortus superbus
narrow leaved onion
scytheleaf onion
Purdy's onion
jeweled onion
harvest brodiaea
golden fairy lantern
yellow mariposa lily
splendid mariposa lily
yellow mariposa
y
y
y
y
y
y
y
y
y
y
Collected
at Cache
Creek
Wilderness
Observed in
Wilderness
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
Appendix B
2
Collected
at Bear
Creek
Ranch3
Collected
at Cache
Creek
Wilderness
Observed in
Wilderness
y
y
Scientific Name
Common Name
Chlorogalum pomeridianum var.
pomeridianum
Dichelostemma capitatum ssp.
capitatum
Dichelostemma congestum
Dichelostemma volubile
Fritillaria affinis var. affinis
Fritillaria pluriflora 1
Triteleia hyacinthina
Triteleia laxa
Triteleia peduncularis
Zigadenus fremontii
Zigadenus micranthus var. fontanus
Zigadenus venenosus var. venenosus
soap plant
y
blue dicks
y
ookow
twining snakelily
checker lily
adobe lily
white brodiaea
Ithuriel's spear
long rayed brodiaea
chaparral zygadene
fountain death camas
death camas
y
y
y
y
y
y
y
y
y
y
LINACEAE
Hesperolinon californicum
Hesperolinon disjunctum
Hesperolinon drymarioides 1
Hesperolinon micranthum
California dwarf flax
coast range western flax
drymary dwarf-flax
small flowered dwarf flax
LOASACEAE
Mentzelia laevicaulis
blazing Star
LYTHRACEAE
*Lythrum hyssopifolium
*Lythrum tribracteatum
hyssop loosestrife
three bracted loosestrife
y
y
MALVACEAE
Malacothamnus fremontii
Malvella leprosa
Sidalcea diploscypha
Fremont's bushmallow
alkali mallow
fringed checkerbloom
y
y
y
MARSILEACEAE
Marsilea vestita spp. vestita
hairy waterclover
y
MOLLUGINACEAE
*Glinus lotoides
lotus sweetjuice
y
MORACEAE
*Ficus carica
edible fig
y
OLEACEAE
Forestiera pubescens
desert olive
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
Appendix B
2
Collected
at Bear
Creek
Ranch3
Scientific Name
Common Name
Fraxinus dipetala
Fraxinus latifolia
California ash
Oregon ash
y
ONAGRACEAE
Camissonia graciliflora
Clarkia affinis
Clarkia concinna ssp. concinna
Clarkia gracilis ssp. gracilis
Clarkia gracilis ssp. tracyi 1
Clarkia purpurea ssp. quadrivulnera
Clarkia rhomboidea
Epilobium brachycarpum
Epilobium canum
Epilobium minutum
Epilobium pygmaeum
hill suncup
chaparral clarkia
red ribbons
slender clarkia
Tracy's clarkia
winecup clarkia
rhomboid farewell to spring
panicled willow herb
California fuchsia
chaparral willowherb
smooth spike primrose
y
y
y
y
y
y
ORCHIDACEAE
Epipactis gigantea
stream orchid
OROBANCHACEAE
Orobanche bulbosa
chaparral broomrape
y
golden eardrops
tufted poppy
California poppy
y
y
y
creamcups
y
PAPAVERACEAE
Dicentra chrysantha
Eschscholzia caespitosa
Eschscholzia californica var.
californica
Platystemon californicus
Collected
at Cache
Creek
Wilderness
Observed in
Wilderness
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
PINACEAE
Pinus attenuata
Pinus ponderosa
Pinus sabiniana
knobcone pine
ponderosa pine
foothill pine
y
PLANTAGINACEAE
*Plantago coronopus
Plantago erecta
*Plantago lanceolata
cut leaf plantain
California plantain
English plantain
y
y
y
y
y
y
y
y
y
y
y
y
Appendix B
Scientific Name
POACEAE
Achnatherum lemmonii
*Aegilops triuncialis
Agrostis exarata
*Aira caryophyllea
*Arundo donax
*Avena barbata
* Avena fatua
*Bromus arenarius
Bromus carinatus
*Bromus caroli-henrici
*Bromus diandrus
*Bromus hordeaceus
*Bromus japonicus
Bromus laevipes
*Bromus madritensis ssp.
madritensis
*Bromus madritensis ssp. rubens
*Bromus tectorum
*Crypsis schoenoides
*Crypsis vaginiflora
*Cynodon dactylon
*Cynosurus echinatus
*Dactylis glomerata
Deschampsia danthonioides
Distichlis spicata
Elymus elymoides
Elymus glaucus ssp. glaucus
Elymus multisetus
*Festuca arundinacea
Festuca californica
Festuca idahoensis var. roemeri
*Gastridium ventricosum
Glyceria?
Hordeum brachyantherum
Hordeum depressum
*Hordeum marinum ssp.
gussoneanum
*Hordeum murinum ssp glaucum
Koeleria macrantha
Leymus triticoides
*Lolium multiflorum
*Lolium perenne
Melica californica
Common Name
2
Collected
at Bear
Creek
Ranch3
Collected
at Cache
Creek
Wilderness
y
barbed goatgrass
spike bentgrass
silver hairgrass
giant reed
slender wild oats
wild oats
Australian brome
California brome
brome
ripgut brome
soft chess
Japanese brome
woodland brome
foxtail chess
y
y
y
y
y
y
red brome
cheatgrass
swamp pricklegrass
African pricklegrass
bermuda grass
hedgehog dogtail grass
orchard grass
annual hairgrass
saltgrass
bottlebrush squirreltail
western rye grass
big squirreltail
tall fescue
California fescue
Roemer’s fescue
nit grass
mannagrass
meadow barley
low barley
Mediterranean barley
y
y
y
y
y
y
mouse barley
junegrass
creeping wild rye
Italian rye grass
perennial rye grass
California melicgrass
y
y
observed
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
Observed in
Wilderness
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
Appendix B
2
Scientific Name
Common Name
Melica torreyana
Muhlenbergia asperifolia
Nassella cernua
Nassella lepida
Nassella pulchra
Panicum capillare
*Paspalum distichum
*Phalaris aquatica
*Phalaris arundinacea
*Phalaris paradoxa
Phragmites australis
*Piptatherum miliaceum
*Poa annua
* Poa bulbosa
Poa secunda
Poa secunda ssp. secunda
*Polypogon maritimus
Torrey's melicgrass
scratchgrass
needle grass
small flowered needlegrass
purple stipa
witchgrass
knotgrass
bulbous canarygrass
reed canarygrass
hood canarygrass
common reed
millet mountain rice
annual bluegrass
bulbous blue grass
pine blue grass
pine bluegrass
Mediterranean rabbit's foot
grass
rabbit's foot
ravennagrass
Medusa head
tall wheatgrass
small fescue, eastwood
fescue
small fescue, desert fescue
*Polypogon monspeliensis
*Saccharum ravennae
*Taeniatherum caput-medusa
*Thinopyrum ponticum
Vulpia microstachys var. ciliata
Vulpia microstachys var.
microstachys
Vulpia microstachys var. pauciflora
*Vulpia myuros
*Vulpia myuros var. hirsuta
POLEMONIACEAE
Collomia diversifolia 1
Gilia capitata
Gilia tricolor
Linanthus bicolor
Linanthus ciliatus
Linanthus dichotomus
Linanthus parviflorus
Navarretia jepsonii 1
Navarretia mellita
Navarretia nigelliformis spp.
nigelliformis 1
Navarretia pubescens
Navarretia tagetina
Phlox gracilis
Collected
at Bear
Creek
Ranch3
y
y
y
y
y
y
y
y
Collected
at Cache
Creek
Wilderness
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
Observed in
Wilderness
y
y
y
y
y
y
y
y
y
y
y
y
y
small fescue, Pacific fescue
foxtail fescue
hairy rattail fescue
y
y
y
y
y
serpentine collomia
blue field gilia
tricolor gilia
true babystars
whiskerbrush
evening snow
variable linanthus
Jepson's navarretia
skunk navarretia
adobe navarretia
y
y
y
y
y
y
y
y
y
y
y
y
downy pincushionplant
navarretia
slender phlox
y
y
y
y
y
y
y
y
y
y
y
y
Appendix B
Scientific Name
POLYGONACEAE
Chorizanthe membranacea
Chorizanthe polygonoides
Eriogonum compositum
Eriogonum dasyanthemum
Eriogonum fasciculatum ssp.
fasciculatum
Eriogonum nervulosum 1
Eriogonum nudum
Eriogonum wrightii var.
trachygonum
Polygonum amphibium var.
stipulaceum
*Polygonum arenastrum
Pterostegia drymarioides
*Rumex crispus
*Rumex pulcher
Common Name
2
pink spineflower
knotweed spineflower
arrowleaf buckwheat
chaparral buckwheat
California buckwheat
Snow Mountain buckwheat
nude buckwheat
Wright's buckwheat
Collected
at Bear
Creek
Ranch3
Collected
at Cache
Creek
Wilderness
Observed in
Wilderness
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
observed
y
y
water smartweed
dooryard knotweed
pterostegia
curly dock
fiddle dock
y
PORTULACACEAE
Calandrinia ciliata
Calyptridium quadripetalum
Claytonia exigua ssp. exigua
Claytonia parviflora
Claytonia perfoliata
Lewisia rediviva
red maids
four petaled pussypaws
little spring beauty
streambank springbeauty
miner's lettuce
bitter root
y
y
y
y
y
POTOMOGETONACEAE
Potamogeton diversifolius
Potamogeton nodosus
Potamogeton pusillus
waterthread pondweed
longleaf pondweed
small pondweed
y
y
y
PRIMULACEAE
Dodecatheon hendersonii
foothill shooting star
y
PTERIDACEAE
Adiantum jordanii
Aspidotis californica
Pellaea andromedifolia
Pellaea mucronata
Pentagramma triangularis
California maiden hair
California lace fern
coffee fern
birdfoot cliffbrake
goldenback fern
y
y
RANUNCULACEAE
Aquilegia eximia
Clematis lasiantha
Van Houtte's columbine
chaparral clematis
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
Appendix B
2
Collected
at Bear
Creek
Ranch3
Collected
at Cache
Creek
Wilderness
Observed in
Wilderness
y
y
y
y
Scientific Name
Common Name
Clematis ligusticifolia
Delphinium hesperium ssp.
pallescens
Delphinium nudicaule
Delphinium patens x decorum
Delphinium uliginosum 1
Delphinium variegatum
Ranunculus arvensis
Ranunculus hebecarpus
Ranunculus occidentalis
Virgin's bower
pale western larkspur
y
y
red larkspur
y
y
swamp larkspur
royal larkspur
corn buttercup
slender annual buttercup
western buttercup
RHAMNACEAE
Ceanothus cuneatus
Ceanothus integerrimus
Ceanothus jepsonii
Ceanothus oliganthus var. sorediatus
Rhamnus ilicifolia
Rhamnus tomentella ssp. tomentella
buck brush
deerbrush
Jepson ceanothus
Jim brush
hollyleaf redberry
California buckthorn
ROSACEAE
Adenostoma fascicularis
Aphanes occidentalis
Cercocarpus betuloides
Heteromeles arbutifolia
Potentilla glandulosa
*Prunus dulcis
Rosa californica
Rubus armeniacus
chamise
western lady's mantle
mountain mahogany
toyon
sticky cinquefoil
sweet almond
California wildrose
Himalaya blackberry
y
y
RUBIACEAE
Galium andrewsii ssp. andrewsii
Galium aparine
*Galium parisiense
Galium porrigens
Galium porrigens var. tenue
*Sherardia arvensis
phlox leaved bedstraw
common bedstraw
wall bedstraw
Nuttall's bedstraw
graceful bedstraw
blue fieldmadder
y
y
y
y
y
y
SALICACEAE
Populus fremontii
Salix breweri
Salix exigua
Salix laevigata
Salix lasiolepis
Salix melanopsis
Fremont cottonwood
Brewer's willow
sandbar willow
red willow
arroyo willow
dusky willow
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
observed
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
Appendix B
Scientific Name
SAXIFRAGACEAE
Lithophragma affine
Lithophragma heterophyllum
Lithophragma parviflorum var.
parviflorum
Saxifraga californica
SCROPHULARIACEAE
Antirrhinum vexillo-calyculatum
Castilleja applegatei ssp. martinii
Castilleja attenuata
Castilleja exserta ssp. exserta
Castilleja foliolosa
Castilleja minor ssp. spiralis
Castilleja rubicundula ssp.
rubicundula 1
Collinsia greenei 1
Collinsia heterophylla
Collinsia sparsiflora
Collinsia sparsiflora var. arvensis
Collinsia sparsiflora var. collina
Collinsia sparsiflora var. sparsiflora
Cordylanthus tenuis
Keckiella breviflora var.
glabrisepala
Keckiella lemmonii
Limosella acaulis
Mimulus douglasii
Mimulus guttatus ssp. guttatus
Mimulus nudatus 1
Pedicularis densiflora
Penstemon heterophyllus
Tonella tenella
Triphysaria eriantha
Triphysaria pusilla
*Verbascum blattaria
*Veronica anagallis-aquatica
Veronica peregrina ssp. xalapensis
SOLANACEAE
*Lycium barbarum
Solanum parishii
Common Name
2
Collected
at Bear
Creek
Ranch3
woodland star
hillside woodland star
smallflower woodland star
y
y
California saxifrage
y
sail flower snapdragon
wavyleaf Indian paintbrush
valley tassels
pale purple owlclover
woolly Indian paintbrush
lesser paintbrush
cream sacs
y
y
y
y
y
y
y
Greene's collinsia
purple Chinese houses
few flowered collinsia
field collinsia
spinster's blue eyed Mary
few flowered collinsia
slender bird's beak
hairless gaping keckiella
y
y
y
y
y
y
y
lemmon beardtongue
Owyhee mudwort
purple mouse ears
seep monkey flower
bare monkeyflower
Indian warrior
foothill penstemon
innocence
butter and eggs
dwarf owl's clover
moth mullein
water speedwell
hairy purslane speedwel
y
y
y
y
y
y
y
y
y
y
y
y
y
matrimony vine
Parish’s nightshade
y
y
Collected
at Cache
Creek
Wilderness
Observed in
Wilderness
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
Appendix B
2
Collected
at Bear
Creek
Ranch3
Scientific Name
Common Name
STYRACACEAE
Styrax officinalis var. redivivus
snowdrop bush
y
TAMARICACEAE
*Tamarix parviflora
smallflower tamarisk
y
TAXACEAE
Torreya californica
California nutmeg
TYPHACEAE
Sparganium sp.
Typha domingensis
Typha latifolia
bur-reed
southern cattail
broadleaf cattail
y
y
VALERIANACEAE
Plectritis brachystemon
Plectritis ciliosa
Plectritis macrocera
short spurred plectritis
long spurred plectritis
white Plectritis
y
y
y
VERBENACEAE
*Phyla nodiflora var. nodiflora
Verbena lasiostachys
common lippia
vervain
y
y
VIOLACEAE
Viola douglasii
Douglas' violet
y
VISCACEAE
Arceuthobium occidentale
Phoradendron densum
Phoradendron villosum
foothill pine dwarf mistletoe
dense mistletoe
Pacific mistletoe
y
Collected
at Cache
Creek
Wilderness
Observed in
Wilderness
y
y
y
y
y
y
y
VITACEAE
Vitis californica
California grape
y
SYMBOLS:
(*) Species is not native to California (CalFlora 2010)
(1) CRPR List 1B or 4 special-status plant (CNPS 2010)
(2) Source for common names: CalFlora 2010
(3) Source for voucher information for Bear Creek Ranch: Dean et al. 2009
y
APPENDIX C
Representative Photographs of Vegetation and Special-Status Plants
Observed in the Cache Creek Wilderness During the 2010 Surveys
Above: Cache Creek Formation to the northeast and above the south fork of Cache Creek near
Redbud Trail crossing, May 5, 2010. Below, April 24, 2010, crossing the north fork of Cache Creek
just to the west of its confluence with the south fork.
Above: Quercus lobata alliance along the south fork of Cache Creek. Below, Salix exigua alliance along Cache
Creek.
Above left: Achyrachaena mollis unpublished alliance. Above right: Micropus californicus unpublished alliance
(both found on nonserpentine soils west of the south fork of Cache Creek on May 5, 2010).
Below left: Lasthenia californica alliance W of the confluence of Rocky and Cache Creeks. Below right: The rare
Eriogonum wrightii alliance on creek terraces E of the confluence of the north and south forks of Cache Creek.
(both observed April 24, 2010).
Rocky Creek Drainage, June 16, 2010. Upper left: prairie with nine native grasses at the southern boundary of
the Wilderness. Upper right: pool above waterfall near southern boundary of Wilderness. Lower left, dry
waterfall. Lower right, Apocynum cannibinum unpublished alliance.
Rocky Creek Drainage, June 16, 2010. Upper left: drainage with Carex nudata alliance showing sedge
hummocks. Upper right: middle reaches of Rocky Creek drainage with single Sargent cypress tree within the
Salix breweri alliance. Lower left: Eriogonum compositum, a rarely encountered species, growing on the slopes
of the drainage. Below right: the Salix breweri alliance.
Above: Serpentine alluvial deposits at the confluence of Rocky and Cache Creeks, April 24, 2010. Below, scenes
along the north fork of Cache Creek, May 5, 2010. Left: serpentine soils where Jepson’s milkvetch and Colusa
tidy-tips were encountered. Right: view of Deadman’s Canyon from the west side of Cache Creek.
Views of dry slopes of serpentine barrens near southern boundary of Wilderness. Below left, habitat of Snow
Mountain buckwheat. Below right: habitat of Socrates Mine jewelflower.
Views of drainages within serpentine barrens with Sargent cypress and knobcone pine near southern boundary
of Wilderness.
Vegetation near southern boundary of Wilderness. Above left: Juncus ensifolius unpublished alliance. Above right:
Carex serratodens alliance. Below left: knobcone pine-sargent cypress association. Below right: serpentine chaparral
with 17 species of shrubs.
List 1B Special-Status Plants Encountered in the Wilderness. Above left: Hall’s madia. Above right: Snow
Mountain buckwheat. Below left: drymary dwarf- flax. Below right: Socrates Mine jewelflower.
List 1B Special-Status Plants Encountered in the Wilderness. Above left: Jepson’s milkvetch. Above right:
Colusa tidy-tips. Below left: adobe lily. Below right: round-leaf storks’bill.
APPENDIX D
DFG California Native Species Field Survey Forms

Cache Creek Wilderness Preliminary Special

Transcription

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