Search Results — 2000 specimen records retrieved (1361 records with coordinates)
(That's the default maximum. Contact Jason Alexander for larger data requests.)

Results for search: County=CONTRA COSTA; Source=All;   

Mapping Options:

BerkeleyMapper with county and bioregion layers
BerkeleyMapper without layers.
KML export
(Note: only records with coordinates are mappable)

Download Options:
Select all records · Select records with coordinates

Include annotations and voucher information

PLEASE NOTE: Due to changes in newer versions of Excel, directly copying text from the above selected results does not produce a usable table.
    Follow these steps:
      1. The contents of the selected results window must be copied into a text editor like TextEdit for Mac or WordPad for Windows
      2. The selected results must be saved as a new text document.
      3. This new text document can now be copied into Excel or imported as a tab delimited text file.

(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/consortium/).
 Records are made available under the CCH Data Use Terms.

Click on column header to sort data (* sorts by family); click in leftmost checkbox to select record. CCH Help Page.
Turn on yellow flags to show possible range discrepancies. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UC1618268  Abutilon theophrasti Barbara Ertter with CNPS 1990-8-19 9622 Contra Costa E side of S end of Briones Reservoir N of Orinda, along Bear Creek trail on EBMUD land, near junction of main trail and path to Briones Overlook Staging Area 182 Comment
  JEPS112392  Acacia dealbata Dean G. Kelch and Andrew G. Murdock 2005-5-13 05 .232 Contra Costa Crockett; County: Contra Costa; West Crockett, below Dead Fish Restaurant along Carquinez Straight. Comment
  UC2042783  Acacia dealbata Barbara Ertter with John Little 1989-4-2 8102 Contra Costa Hillside Park in El Cerrito. Comment
  CAS-BOT-BC177068  Acacia melanoxylon Walter Knight 1978-7-13 3102 Contra Costa Browns Island Comment
  JEPS87956  Acacia melanoxylon Barbara Ertter 1991-5-12 9815 Contra Costa in sw corner El Cerrito (Point Isabel Regional Shoreline, along old railroad right-of-way between bay and salicornia marsh); San Francisco Bay, Point Isabel Regional Shoreline Comment
  UC1719694  Acacia redolens Barbara Ertter, Brad Olson 1994-5-7 12742 Contra Costa S end of Point Molate Beach Park, edge of San Francisco Bay N of Richmond to San Rafael bridge Comment
  UC12000  Acaena pinnatifida var. californica H. M. Hall 1901-3-16 1655 Contra Costa Point Richmond Region of San Francisco Bay, Point Richmond Comment
  CAS-BOT-BC331615  Acer macrophyllum Peter H. Raven; H. L. Mason; R. Ornduff; et al. 1957-4-11 10621 Contra Costa Curry Canyon, 3.4 miles S of Recreation Ground Comment
  UC1745531  Acer macrophyllum Annetta M. Carter, Florence Little 1937-4-4 1228 Contra Costa Las Trampas Canyon about 1/2 mi. E of St. Mary's College. Comment
  UC692719  Acer macrophyllum Mary L. Bowerman 1931-3-21 605 Contra Costa Sycamore Canyon Mount Diablo, Sycamore Canyon Comment
  CAS-BOT-BC331613  Acer macrophyllum Paul F. Covel 1936-4-19 235 Contra Costa Las Trampas (Cashion) Canyon Comment
  UC1540475  Acer negundo var. californicum Annetta Carter 1937-4-4 1229 Contra Costa 2 1/2 mi n Moraga (Moraga Valley); , Creek bank, n of Moraga 182 Comment
  UC692720  Acer negundo var. interior Mary L. Bowerman 1931-10-23 1063 a Contra Costa Riggs Canyon mouth Mount Diablo, Riggs Canyon mouth (by stream-bed) 228 Comment
  UC1050367  Acer palmatum N. Floy Bracelin 1942-7-4 2183 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC21713  Achillea millefolium Mary L. Bowerman 1930-6-3 238 Contra Costa Mount Diablo: West road 1.9 miles from entrance Comment
  JEPS111675  Achillea millefolium D. G. Kelch 2003-8-13 03 .102 Contra Costa Martinez Marsh 0 Comment
  UC2032824  Achillea millefolium Doran, Andrew Scott 2012-3-20 694 Contra Costa North end of Brooks Island along ridge overlooking artificial spit, southwest of caretakers residence. Comment
  RSA33996  Achillea millefolium var. californica J. Wendell Howe 1930-3-30 s.n. Contra Costa Hill Tops Comment
  CDA25241  Achyrachaena mollis D. G. Kelch, D. A. Weinstein 2008-4-15 08 .047-B Contra Costa Carquinez Strait; S Port Costa along Mckewen Rd. Comment
  CHSC23339  Achyrachaena mollis Willis Ball 1974-4-21 426 Contra Costa Contra Loma Regional Park. In area #1. On the n side of road leading to main parking lot ca. 50 yds e of parking lot. 2 yds off road. 38 Comment
  JEPS111752  Achyrachaena mollis D. G. Kelch 2005-4-15 05 .153 Contra Costa Rodeo Creek EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump) 220 Comment
  PASA2309  Achyrachaena mollis Annetta Carter 1929-3-31 Contra Costa near Clayton Comment
  CAS-BOT-BC29883  Achyrachaena mollis Alice Eastwood 1914-1-1 s.n. Contra Costa unspecified Comment
  CAS-BOT-BC29890  Achyrachaena mollis E. M. Zeile 1909-5-19 s.n. Contra Costa Regents Park, West Berkeley Comment
  HSC4584  Achyrachaena mollis Greg Bos 1963-4-28 98 Contra Costa Pinole hills overlooking San Pablo Bay 46 Comment
  SEINET10615056  Achyrachaena mollis John T. Middleton 1936-4-18 Middleton 144 Contra Costa Comment
  UCD104491  Acmispon wrangelianus Morris Halperin 1929-4-21 s.n. Contra Costa Moraga Valley. Comment
  SEINET4089806  Adenostoma fasciculatum B. C. Templeton 1962-1 sn Contra Costa Mount Diablo. Comment
  UC12009  Adenostoma fasciculatum W. L. Jepson 1891-5-23 Contra Costa Mt. Diablo Comment
  UC691160  Adenostoma fasciculatum Mary L. Bowerman 1932-3-20 1122 Contra Costa n.e. fork Sycamore Canyon (toward top of middle ridge, Mt. Diablo); Mt. Diablo, Sycamore Canyon Comment
  SEINET11907860  Adenostoma fasciculatum L. J. Musselman 1970-1 3774 Contra Costa W slope of Mt. Diablo, near summit ridge 1067 Comment
  UCD112582  Adenostoma fasciculatum Beecher Crampton 1949-7-15 481 Contra Costa Site of old coal mining town of Judsonville. Comment
  HSC93903  Adiantum jordanii C. Newberry 1994-4-30 7255 Contra Costa Mt. Diablo State Park, trail from Mitchell Canyon Parking to Donner Creek 900 Comment
  JEPS112046  Adiantum jordanii D. G. Kelch 2005-5-1 05 .194 Contra Costa Crockett - Edwards Canyon 150 Comment
  RSA0068494  Adiantum jordanii Katie Gallagher, Nick Jensen 2014-4-26 180 Contra Costa Las Trampas Regional Wilderness. 365 Comment
  RSA585064  Adiantum jordanii C. Newberry 1994-4-30 7255 Contra Costa Mount Diablo State Park, trail from Mitchell Canyon parking to Donner Creek 900 Comment
  LA205595  Aesculus californica J. A. Ewan; 1936-5-31 9715 Contra Costa Wildcat Creek Comment
  POM136961  Aesculus californica Ivar Tidestrom 1895-06 s.n. Contra Costa [No location information on label.] Comment
  SEINET12232133  Aesculus californica M. T. Dorett 1930-1 77 Contra Costa Marsh Creek Comment
  CAS-BOT-BC29520  Agoseris apargioides R. E. Frenkel 1964-6-20 595 Contra Costa On Giant Road at its junction with Atlas Road, Richmond 16 Comment
  UC2028123  Agoseris grandiflora Barbara Ertter with Richard K. Brummitt 1998-5-6 16085 Contra Costa Lower Donner Canyon on north base of Mount Diablo, near Donner Cabin site. Comment
  UC2028295  Agoseris grandiflora Barbara Ertter, Dan Norris 1998-6-18 16218 Contra Costa Rock City area on south side of Mount Diablo, W Fossil Ridge Trail. Comment
  UCD128591  Agoseris grandiflora G. Thomas Robbins; S. Galen Smith 1958-6-2 3851 Contra Costa Along Franklin Canyon Road (State Highway 4) in Refugio Valley, just east of Hercules city boundary. 18 Comment
  UCD36920  Agoseris grandiflora Beecher Crampton 1956-5-14 3400 Contra Costa Mount Diablo, south of Windy Point. Comment
  UC29388  Agoseris grandiflora var. grandiflora Jos. Burtt Davy 1901-4-21 7044 Contra Costa Wildcat Canon Wildcat Canon Comment
  POM301002  Agoseris heterophylla Mary L. Bowerman 1933-5-8 2013 Contra Costa Fossil Ridge near crest, north side by side road. Comment
  CAS-BOT-BC13348  Agoseris retrorsa LeRoy Abrams 1921-5-25 8030 Contra Costa Summit Mount Diablo Comment
  UCD92546  Agrostis Beecher Crampton 1959-9-3 5454 Contra Costa Cleared bed of Bear Creek, about 2 miles north of Orinda. Comment
  JEPS127233  Agrostis avenacea Lowell Ahart, Josephine Guardino 2016-4-19 20787 Contra Costa 1.4 miles (air) northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Dam, approximately 25 miles (air) southwest to Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  UC2028536  Agrostis capillaris Barbara Ertter with Amy Rusev 1998-1-17 15903 Contra Costa Edge of Lime Ridge Open Space at NW foot of Mount Diablo, around former quarry (subsequently developed) on south side of Ygnacio Valley Road. Comment
  JEPS100031  Agrostis exarata S. O'Neil 2003-6-24 SEO 41 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2029201  Agrostis exarata Barbara Ertter 1999-7-17 16763 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, Rifle Range Road Comment
  CAS-BOT-BC127339  Agrostis exarata Mary L. Bowerman 1932-11-12 1647 Contra Costa Mount Diablo. Canyon Spring. 1005 Comment
  RSA0029051  Agrostis exarata Barbara Ertter 1999-6-12 16711 Contra Costa Black Hawk Ridge road on south side of Mount Diablo, road crossing at confluence of NE and E forks of Sycamore Creek. 396 Comment
  UCD37372  Agrostis exarata var. pacifica Beecher Crampton 1959-9-3 5455 Contra Costa Contra Costa County, 2 miles north of city of Orinda, Bear Creek, East Bay Municipal Utilities District Project. Comment
  JEPS99592  Agrostis viridis Mary Bowerman 1993-10-22 Contra Costa Mount Diablo, Pine Pond, South side. Comment
  JEPS97561  Aira caryophyllea R. D. Stone 1980-7-13 282 Contra Costa Huckleberry Trail Oakland Hills, near Alameda-Contra Costa county line (NE of intersection of Skyline Blvd. and Snake Road) Comment
  RSA760665  Aira caryophyllea var. capillaris William J. Ferlatte, L. Maynard Moe 1970-4-27 1231 Contra Costa San Francisco Bay, Red Rock Island. Comment
  CAS-BOT-BC138386  Aira caryophyllea var. caryophyllea Barrett Anderson 1987-4-29 3479 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD. 125 Comment
  CAS-BOT-BC175360  Allenrolfea occidentalis J. Burtt Davy 1898-5-1 s.n. Contra Costa Byron Springs, Mt. Diablo region Comment
  UC116547  Allenrolfea occidentalis K. Brandegee 1885-1 Contra Costa near Antioch Antioch Comment
  CAS-BOT-BC175358  Allenrolfea occidentalis T. C. Fuller 1965-11-24 14321 Contra Costa On the slopes of the drainageway from Byron Hot Springs, s. side Byron Hot Springs Rd., 0.6 mi. s.w. of Byron-Tracy Hwy, ca. 1 mi. s.w. of Byron Comment
  SD39067  Allium amplectens McCallum 1933-4-24 3715 Contra Costa Top of hill between Walnut Creek and Berkeley. Comment
  UC843253  Allium falcifolium Lewis S. Rose 1941-5-15 41237 Contra Costa summit of Mt. Diablo, Type Locality Mt. Diablo 1188 Comment
  CDA2750  Allium neapolitanum D. G. Kelch, A. G. Murdock 2004-4-11 4 .073 Contra Costa Carquinez Strait; Hillside above Rolf Drive, Crockett. Lower Crolona Heights. Comment
  JEPS112489  Allium neapolitanum D. G. Kelch 2004-4-11 04 .73 Contra Costa Crockett - Crolona Heights Hillside above Rolf Drive. Lower Crolona heights 15 Comment
  JEPS112495  Allium neapolitanum D. G. Kelch 2005-3-24 05 .55 Contra Costa Southern Pt. Pinole 3 Comment
  JEPS112708  Allium serra Dean W. Taylor 1994-3-30 14115 Contra Costa Mt. Diablo (in Mt. Diablo State Park); 2 mi S along North Gate Road from the North Gate kiosk, 426 Comment
  UC692028  Allium serra Mary L. Bowerman 1933-4-26 1932 Contra Costa Perkins Canyon branch between the main ridge of North Peak and the ridge to its south Mount Diablo, Perkins Canyon 518 Comment
  UC72519  Allium serra Harley P. Chandler 1901-3-22 852 Contra Costa Martinez Comment
  UC796584  Allium serra Reed C. Rollins 1946-3-25 3043 Contra Costa w slope of Mount Diablo Mount Diablo Comment
  CAS-BOT-BC475531  Allium serra Alice Eastwood; John Thomas Howell 1936-4-19 2135 Contra Costa Nortonville Comment
  CAS-BOT-BC475534  Allium serra W. H. Brewer 1862-4-25 994 Contra Costa Martinez Comment
  CAS-BOT-BC475539  Allium serra Reed C. Rollins 1946-3-25 3043 Contra Costa Western slope of Mount Diablo Comment
  UC1481558  Allium serra Neil Havlik 1980-5-18 920 Contra Costa along fire road on e side, Morgan Territory Morgan Territory Comment
  UCD138632  Allium serra Laurence S. Jones 1934-4-8 s.n. Contra Costa Mount Diablo. 609 Comment
  UCD138636  Allium serra Cliff Low 1978-5-19 20 Contra Costa Back Canyon Creek, east of Eagle Peak on Mount Diablo. 304 Comment
  JEPS21840  Allium unifolium T. E. Adams 1958-5-16 76 Contra Costa Charles Lee Tilden Regional Park 121 Comment
  UC692021  Allium unifolium Mary L. Bowerman 1933-5-22 2165 Contra Costa flat at head of n ridge w 1970; Mount Diablo, Inner Black Hills Comment
  UC691647  Allophyllum gilioides subsp. gilioides Mary L. Bowerman 1935-4-26 2904 Contra Costa w. Indian Ceremonial Spring (Mt. Diablo); Mt. Diablo 1021 Comment
  CAS-BOT-BC170926  Alnus rhombifolia Mary L. Bowerman 1931-10-13 1058 Contra Costa Mount Diablo. Alamo Canyon 259 Comment
  JEPS58619  Alnus rhombifolia W. L. Jepson 1899-2-26 Contra Costa Wild Cat Creek Berkeley Hills Comment
  CAS-BOT-BC137970  Alopecurus saccatus John Thomas Howell 1953-4-26 28936 Contra Costa Between Byron and Byron Hot Springs. Comment
  CAS-BOT-BC137969  Alopecurus saccatus Niall McCarten; V. I. Dains 1986-6-1 03261419 Contra Costa 0.5 mile north of Balfour Road at the Deer Creek Reservori. Comment
  UC691946  Amaranthus albus Mary L. Bowerman 1932-8-27 1515 Contra Costa s of Turtle Rock; Mt. Diablo Comment
  SEINET3840792  Amaranthus cruentus Dean G. Kelch, Andrew G. Murdock 2005-6-27 5 .392 Contra Costa Carquinez Strait, Sixth street at Lillian Street in vegetable garden, Crockett, common garden weed 33 Comment
  CDA7886  Amaranthus deflexus D. G. Kelch, A. G. Murdock 2004-7-9 04 .291-B Contra Costa Carquinez Strait; Crockett; Edwards Creek, immediately below high school. Comment
  RSA300588  Amaranthus retroflexus Mary L. Bowerman 1936-9-9 3539 Contra Costa Sycamore Canyon just below Blackhawk Ranch Comment
  UC1789207  Amaryllis belladonna Barbara Ertter 2002-8-24 18029 Contra Costa NE corner of Mount Diablo State park, along upper bridle path S of Mount Diablo Mine property, apparent site of old homestead (only rocked terraces left) 274 Comment
  CHSC97944  Ambrosia trifida J. Clark; C. Beutler 1976-9-1 Contra Costa Residential property, 2161 Youngs Court, Walnut Creek. Comment
  SEINET11910975  Amelanchier alnifolia W. Knight, Knight, I. 1983-1 4741 Contra Costa Tilden Botanic Garden, Berkeley Comment
  SEINET238192 Image available Ampelodesmos mauritanicus Beecher Crampton 1966-10-18 7816 Contra Costa CULTIVATED ; Kensington Berkeley Hills Blake Garden UC Berkeley Dept. of landscape architecture. Comment
  UCD33151  Ampelodesmos mauritanicus Beecher Crampton 1966-10-18 7816 Contra Costa Contra Costa County, Kensington, Berkeley Hills Blake Garden, UC Berkeley Dept. of landscape architecture. Comment
  CAS-BOT-BC222218  Amsinckia John Thomas Howell 1934-4-8 11812 Contra Costa 7 miles from Clayton on road to Livermore Comment
  CAS-BOT-BC222230  Amsinckia John Thomas Howell 1933-3-29 10910 Contra Costa Nortonville hills Comment
  RSA0090926  Amsinckia eastwoodiae A. A. Heller 1941-3-24 15906 Contra Costa Byron Springs. Comment
  UC1094074  Amsinckia eastwoodiae Francia Chisaki 1952-3-13 201 Contra Costa 0.25 mi s of Hwy 50 on Mountain House Road Comment
  SEINET11792519  Amsinckia grandiflora P. Del Monte 1976-1 Contra Costa Comment
  CHSC23358  Amsinckia intermedia Willis Ball 1975-3-2 475 Contra Costa Contra Loma Regional Park. In area #5. On w side of largest hill ca. 100 yds ne of main boat ramp at the s end of the reservoir. 45 Comment
  CHSC91870  Amsinckia intermedia Richard R. Halse 1988-2-20 3541 Contra Costa Along State Hwy. 4 near its junction with Balfour Road on the S edge of Brentwood. 23 Comment
  UC725924  Amsinckia intermedia A. A. Heller 1941-3-24 15905 Contra Costa Byron Springs Comment
  RSA0069374  Amsinckia intermedia Katie Gallagher, Nick Jensen 2014-4-26 215 Contra Costa Las Trampas Regional Wilderness. 487 Comment
  UC1301078  Amsinckia lycopsoides Helen K. Sharsmith 1963-4-7 5294 Contra Costa near Oakley s of Antioch; San Francisco Bay Region 15 Comment
  UC1178245  Amsinckia menziesii var. menziesii Francia Chisaki and R. Bacigalupi 1957-3-27 911 Contra Costa 1.5 mi e of Antioch City limits (just e of Kaiser Gypsum Plant along Wilbur Avenue) Comment
  CDA29026  Anagallis arvensis D. G. Kelch 2006-5-7 6 .156 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  JEPS43119  Anagallis arvensis W. L. Jepson 1923-4-22 9865 Contra Costa Mt. Diablo Comment
  UC2062621  Anagallis arvensis Barbara Ertter with Joanne Kerbavaz et al. 2003-5-8 18173 Contra Costa South Gate Road on south side of Mount Diablo. Comment
  UC485559  Ancistrocarphus filagineus Thomas Howell 1883-5-1 Contra Costa Antioch Comment
  UC35150  Androsace elongata subsp. acuta J. P. Tracy 1902-3-15 1314 Contra Costa hills near Berkeley; San Francisco Bay, San Pablo Ridge 457 Comment
  UC672438  Anemopsis californica Herbert L. Mason 1929-9-21 5437 Contra Costa 3 mi above Clayton (Marsh Creek Road); Marsh Creek Road Comment
  CHSC75049  Anthemis cotula Roger Thom 1987-5-27 24 Contra Costa 1900 block of Olympic Blvd. (at Newell Ave.), Walnut Creek. 15 Comment
  UCD159357  Anthemis cotula D. S. Park 2010-6-22 142 Contra Costa Wildwood canyon. Along trailside and on trail. 79 Comment
  JEPS111630  Anthriscus caucalis D. G. Kelch 2005-5-13 05 .261 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Area along Vista Road ~ 2.5 kiloms West of Martinez 45 Comment
  SEINET2446344  Antirrhinum elmeri A. D. E. Elmer 4809 Contra Costa Mount Diablo. Comment
  SEINET884570 Image available Antirrhinum elmeri A. D. E. Elmer 1903-1 4809 Contra Costa Mount Diablo. Comment
  SEINET8242148  Antirrhinum vexillocalyculatum A. D. E. Elmer 1903-1 4809 Contra Costa Mount Diablo. Comment
  UC2029063  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum Barbara Ertter 2000-7-29 17447 Contra Costa Donner Basin on north side of Mount Diablo, Cardinet Oaks Road at junction with Falls Trail. Comment
  UC2032826  Aphanes arvensis Doran, Andrew Scott 2012-3-20 696 Contra Costa Second highest point on Brooks Island below rocky outcrop Comment
  JEPS112084  Aphanes occidentalis D. G. Kelch 2004-3-12 04 .35 Contra Costa Pinole Valley Hillside and canyon above Wright Road. Off of Pinole Valley Road 220 Comment
  UC691897  Apiastrum angustifolium Mary L. Bowerman 1933-4-26 1917 Contra Costa Mount Diablo, North Peak North Peak; Mount Diablo, North Peak 609 Comment
  UC692374  Apiastrum angustifolium Mary L. Bowerman 1932-3-27 1145 Contra Costa between next spur to south and Mitchell Rock (Mount Diablo); Mount Diablo Comment
  SEINET13943445 Image available Apium graveolens Joseph Andorfer Ewan 1936-1 9714 Contra Costa Wildcat Creek Comment
  UC1594204  Apocynum cannabinum Jerry Powell 1991-6-11 1606 Contra Costa Antioch Nat'l Wildlife Refuge Comment
  UC691848  Apocynum cannabinum Mary L. Bowerman 1931-5-28 905 Contra Costa gully to s. at e. end of Castle Rock Farm (Pine Canyon); Mt. Diablo, Pine Canyon Comment
  UC692207  Aquilegia eximia Mary L. Bowerman 1933-6-2 2331 Contra Costa Donner Canyon Mount Diablo Comment
  CAS-BOT-BC392088  Aquilegia formosa John Thomas Howell 1933-5-14 11253 Contra Costa Hills east of St. Mary's College Comment
  UC692088  Aquilegia formosa Mary L. Bowerman 1935-5-18 3021 Contra Costa across the rd and a little east from the parking area Mount Diablo 1066 Comment
  UC692182  Aquilegia formosa Mary L. Bowerman 1938-6-14 3686 Contra Costa Juniper Camp Mount Diablo Comment
  OBI22876  Arbutus menziesii Cathy Peterson 1971-11-6 11 Contra Costa Mount Diablo, South side, approx. 45 yds from Rock City entrance 610 Comment
  UC692043  Arceuthobium campylopodum Mary L. Bowerman 1931-10-31 1065 Contra Costa south Rd near junction Mount Diablo Comment
  UC2028013  Arceuthobium campylopodum Barbara Ertter 1997-11-1 15877 Contra Costa South side Mount Diablo, Knobcone Point Road east of junction with Black Hawk Ridge Road. Comment
  UC2028513  Arceuthobium campylopodum Barbara Ertter 1996-11-24 15417 Contra Costa Southwest side of Mount Diablo, Wall Point Road across Pine Ridge ca 1/2 air miles ENE of Macedo Ranch. Comment
  UC727009  Arctostaphylos A. A. Heller 1942-3-15 16399 Contra Costa roadside bank along e-w road below Vine Hill Schoolhouse Comment
  UCSC006431  Arctostaphylos Randall Morgan 1991-4-28 s.n. Contra Costa Alamo, S-Gate Rd, 1/4 mi beyond Curry Pt, Mt. Diablo Comment
  SEINET11977748  Arctostaphylos andersonii var. auriculata L. S. Rose 1932-1 32110 Contra Costa Nortonville Comment
  RSA121965  Arctostaphylos andersonii var. pallida B. O. Schreiber 1938-9-18 2548 Contra Costa 0.5 miles south southwest of Round Top. 335 Comment
  CHSC39444  Arctostaphylos auriculata B. A. Stein 1981-3-21 460 Contra Costa Mt. Diablo State Park, Rock City Campgound. 457 Comment
  JEPS38915  Arctostaphylos auriculata Mary L. Bowerman 1932-2-13 1086 Contra Costa on ridge between main forks of canyon Mount Diablo; , Alamo Canyon Comment
  POM203162  Arctostaphylos auriculata Alice Eastwood 1922-3-17 11083 Contra Costa Mt. Diablo Comment
  POM300661  Arctostaphylos auriculata Mary L. Bowerman 1933-3-25 1772 Contra Costa Emmons Canyon: South-facing slope between the two forks, top of ridge (Pine Canyon ridge) Comment
  RSA15419  Arctostaphylos auriculata Alice Eastwood, John Thomas Howell 1936-4-19 2130 Contra Costa Nortonville. Comment
  RSA622478  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27600 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments
Jan 30 2013
  RSA622485  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27602 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments
Jan 30 2013
  SDSU1486  Arctostaphylos auriculata D. F. Howe 1968-5-21 4519 Contra Costa Mt. Diablo. 1067 Comment
  UC549568  Arctostaphylos auriculata J. E. Adams 1934-3-19 672 Contra Costa Mt. Diablo Comment
  UC692484  Arctostaphylos auriculata Mary L. Bowerman 1932-2-13 1086 Contra Costa on ridge between main forks of canyon Mount Diablo; , Alamo Canyon Comment
  UC75347  Arctostaphylos auriculata Alice Eastwood 1903-5-31 3161 Contra Costa Mt. Diablo Comment
  UC2028019  Arctostaphylos auriculata Barbara Ertter 1997-9-14 15817 Contra Costa Southwest side of Mount Diablo, Wall Point Road on open sandstone ridge northwest of Wall Point. Comment
  CHSC83112  Arctostaphylos canescens subsp. sonomensis Walter Knight 1968-1-15 Contra Costa Tilden Park Bot. Gard. Comment
  CAS-BOT-BC23557  Arctostaphylos crustacea J. E. Adams 1934-3-9 623 Contra Costa Moraga Ridge Comment
  CAS-BOT-BC23595  Arctostaphylos crustacea Gladys L. Smith 1966-4-9 s.n. Contra Costa Moraga Ridge (Pine Ridge section) Comment
  CAS-BOT-BC23599  Arctostaphylos crustacea Stephen W. Edwards 1981-1-5 1001 Contra Costa Browne's Regional Park, on ridge facing Russell Tree Farm. Comment
  UCSB26085  Arctostaphylos crustacea subsp. crustacea Lee, Edward 1935-12-28 Contra Costa Western end of Las Trampas Ridge; (T1S, R2W, Sect. 22, Concord Quadrangle) 426 Comment
  UCSB26113  Arctostaphylos crustacea subsp. crustacea Lee, Edward 1935-12-28 Contra Costa Western end of Las Trampas Ridge; (T1S, R2W, Sect. 22, Concord Quadrangle) 426 Comment
  CAS-BOT-BC24653  Arctostaphylos glauca Mary L. Bowerman 1933-2-4 1691 Contra Costa Mount Diablo, Perkins Canyon, s. fork. Comment
  CAS-BOT-BC24657  Arctostaphylos glauca H. E. McMinn 1922-6-21 89 Contra Costa N. slope of Mt. Diablo. Comment
  RSA0046799  Arctostaphylos glauca Mary L. Bowerman 1933-3-11 1748 Contra Costa Fossil Ridge, outer south face. In gully northwest of South Gate. Comment
  RSA632828  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27582 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  SEINET11977789  Arctostaphylos manzanita M. T. Doutt 1930-1 85 Contra Costa Marsh Creek Comment
  CAS-BOT-BC38880  Arctostaphylos manzanita subsp. laevigata H. E. McMinn 1923-3-6 876 c Contra Costa Mt. Diablo Comment
  CAS-BOT-BC38881  Arctostaphylos manzanita subsp. laevigata J. T. Howell 1926-3-7 1665 Contra Costa Mt. Diablo Comment
  JEPS124457  Arctostaphylos manzanita subsp. laevigata Daniel Slakey with CNPS Volunteers 2015-6-29 132 Contra Costa Wall Point Rd, along a roughly 1 km stretch of road just west of Wall Point. Comment
  JEPS125932  Arctostaphylos manzanita subsp. laevigata D. W. Taylor 2001-3-21 17613 Contra Costa Mount Diablo State Park, near Balancing Rock; ridge forming southern watershed boundary Curry Creek Canyon. Comment
  UCD51723  Arctostaphylos manzanita subsp. laevigata H. A. Jensen 1938-10-27 451 Contra Costa Head of Curry Canyon. 518 Comment
  CDA29586  Arctostaphylos pallida D. G. Kelch, Suzanne Latham, Matt Beyers 2009-6-3 9 .334 Contra Costa East Bay.; El Sobrante Ridge at end of Silver Belt Dr. on Miocene chert outcrop. Comment
  SEINET11987134  Arctostaphylos pungens subsp. laevigata W. Knight, Knight, I. 1980-1 3824 Contra Costa Tilden Botanic Garden, orig. from Mt. Diablo Comment
  RSA164648  Arctostaphylos tomentosa subsp. crustacea P. C. Everett 1963-11-19 11774 Contra Costa Mt. Diablo. 457 Comment
  RSA202863  Arctostaphylos tomentosa subsp. crustacea Edward Lee 1935-12-28 1702 Contra Costa Western end of Las Trampas Ridge Comment
Read comments
Jul 2 2011
  UC1120138  Arctostaphylos tomentosa subsp. crustacea C. M. Belshaw 1936-2-16 1585 Contra Costa 2 1/2 mi nw Lafayette; Concord Quadrangle, Lafayette Ridge Comment
  UC1120187  Arctostaphylos tomentosa subsp. crustacea R. C. Wilson 1935-3-14 8156 Contra Costa 2 mi w Cave Pt.; Mt. Diablo Quadrangle Comment
  UC549443  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-2-15 608 Contra Costa Moraga Ridge Comment
  UC692223  Arctostaphylos tomentosa subsp. crustacea Mary L. Bowerman 1932-3-20 1123 Contra Costa toward top middle ridge (ne fork of canyon); Mt. Diablo, Sycamore Canyon Comment
  UC2046014  Arctostaphylos viscida subsp. mariposa Stephen W. Edwards July, 2012 s.n. Contra Costa Pleasant Hill, along Taylor Blvd. Comment
  CAS-BOT-BC102183  Argyranthemum foeniculaceum G. Thomas Robbins; John Weiler 1959-5-23 4022 Contra Costa Breakwater portion of Brooks Island (its northwestern extension), San Francisco Bay, Richmond Comment
  CAS-BOT-BC102185  Argyranthemum foeniculaceum William Lidicker 1967-4-13 s.n. Contra Costa Brooks Island, San Francisco Bay Comment
  JEPS100124  Aristolochia californica G. Smick 2003-2-27 GAS 55 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD137820  Aristolochia californica G. L. Stebbins Jr.; P. Dansereau, C. McMillan, K. Naravan 1949-3-26 3967 Contra Costa 0.5 mile northeast of Saint Mary's College, Moraga. Comment
  CAS-BOT-BC82594  Arnica lanceolata subsp. prima H. M. Hall; H. P. Chandler 1900-7-1 649 Contra Costa South Fork of San Joaquin River Comment
  CAS-BOT-BC84954  Artemisia californica Mary L. Bowerman 1931-11-21 1069 Contra Costa Mount Diablo, donner Canyon, east flank. Comment
  SEINET9290427  Artemisia californica Unknown 1959-10-19 5466 Contra Costa Contra Costa Comment
  UC1584665  Artemisia douglasiana Jerry Powell 1990-8-29 1592 Contra Costa Antioch National Wildlife Refuge Comment
  RSA0027950  Artemisia douglasiana Barbara Ertter 1997-9-7 15794 Contra Costa North side of Mount Diablo, Donner Creek crossing at south end of Hetherington Trail. Comment
  UC1051127  Arum italicum N. Floy Bracelin 1944-9-24 2585 Contra Costa the Garden of Anson and Anita Blake Berkeley Comment
  UC169478  Asarum caudatum Katharine Brandegee Apr 1913 Contra Costa Eastport, Oakland Hills? Comment
  JEPS5091  Asclepias californica Mary L. Bowerman 1935-5-1 2944 Contra Costa 4.4 mi from entrance (West road); Mount Diablo 381 Comment
  UC691840  Asclepias fascicularis Mary L. Bowerman 1932-11-25 1667 Contra Costa Silver Spring Mount Diablo Comment
  CDA34969  Asparagus asparagoides Barbara Ertter 1991-1-21 9715 Contra Costa El Cerrito, in southwest corner of county; northeast corner of Point Isabel Regional Shoreline, along abandoned railroad right-of-way. 0 Comment
  CDA19073  Asphodelus fistulosus B. Case 2001-4-11 PDR 1048013 Contra Costa San Francisco Bay Region; San Ramon. 0 Comment
Read comments
May 27 2008
  JEPS46413  Aspidium Sanford Feb. 1908 Contra Costa Clayton Comment
  RSA0028278  Aster exilis Barbara Ertter, CNPS 1990-9-16 9645 Contra Costa Bethel Island NE of Brentwood, E end of Gateway Road at W edge of Franks Tract State Recreation Area. Comment
  CDA15295  Aster lentus Amy Hiss 1998-10-14 s.n. Contra Costa Sacramento Delta; Marina Fishing Pier at northernmost limit of city of Antioch. Comment
  CDA10358  Aster subulatus var. ligulatus D. G. Kelch 2006-9-15 6 .472 Contra Costa Carquinez Strait; Martinez. Waterfront Rd. Marina Dr. , 100 m. W of Pacheco Slough. Comment
  CAS-BOT-BC180529  Astragalus asymmetricus Katharine Brandegee 1908-1-1 s.n. Contra Costa Near Antioch. Comment
  UC13421  Astragalus gambelianus W. H. Brewer 1862-5-12 1071 Contra Costa Monte Diablo Comment
  SEINET7716442  Astragalus leucophyllus Chesnut, Drew 1889-4-16 Contra Costa Clayton Comment
  SEINET12162892  Astragalus oxyphysus W. Knight, Knight, I. 1982-1 4498 Contra Costa Tilden Botanic Garden, Berkeley, ca originally collected nr Somersville Comment
  CHSC67945  Astragalus tener var. tener James D. Jokerst 1989-3-28 3053 Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. Comment
  UC10226  Athysanus pusillus T. S. Brandegee Contra Costa Antioch Comment
  UC1713776  Athysanus pusillus T. S. Brandegee April, 1871 Contra Costa Antioch Comment
  UC480596  Athysanus pusillus Carl Meyer 1928-2-22 291 Contra Costa Mount Diablo Comment
  UC673344  Athysanus pusillus H. L. Mason 1929-3-29 5117 Contra Costa Mount Diablo 1066 Comment
  RSA0036964  Atriplex coronata D. G. Kelch, Mike Perlmutter 2011-9-23 11 .760 Contra Costa Entry to Discovery Bay. 2 Comment
  UCD77402  Atriplex coronata Robert E. Preston 2000-8-6 1430 Contra Costa Ca. 2 mi sw of Byron, in field along w side of Byron Hot Springs Rd, n of Armstrong Rd, T1S R3E se 1/4 Section 15 12 Comment
  UC70185  Atriplex joaquinana J. Burtt Davy May 1898 Contra Costa Danville region of Mount Diablo, Danville Comment
  JEPS41046  Atriplex leucophylla Rimo Bacigalupi and L. R. Heckard 1965-5-11 9071 Contra Costa on strand at n end Brooks Island (in San Francisco Bay sw of Richmond); San Francisco Bay, sw of Richmond, n end Brooks Island Comment
  UCD158701  Atriplex prostrata James A. Neilson Jr. 1972-10-22 3623 Contra Costa Contra Costa County. Lower Pine Creek. (Elevation estimated using Google Earth by label maker.) 15 Comment
  CDA21599  Atriplex semibaccata D. G. Kelch, Mike Park 2008-9-1 8 .303 Contra Costa Carquinez Strait; Lonetree Point. Rodeo Shoreline Park. Rodeo. Comment
  UC2029106  Atriplex semibaccata Barbara Ertter 1990-9-30 9655 Contra Costa SE of Hilltop Mall in N Richmond, near Day's Inn. Comment
  UCD56170  Avena barbata Beecher Crampton 1956-5-14 3404 Contra Costa Southeast of Mt. Diablo. Headwaters of Marsh Creek. 640 Comment
  CAS-BOT-BC98766  Baccharis douglasii Walter Knight; I. Knight; S. Rae; B. Doyle; J. T. Howell; E. McClintock 1978-9-5 3209 Contra Costa Browns Island, near Sandy Knoll Comment
  CAS-BOT-BC98764  Baccharis douglasii John Thomas Howell 1926-1-17 1627 Contra Costa Between Cashion and las Trampas Ridge Comment
  CDA10377  Baccharis glutinosa D. G. Kelch, A. G. Murdock 2003-8-13 3 .138 Contra Costa Carquinez Strait; Pinole Creek. Comment
  JEPS111735  Baccharis glutinosa D. G. Kelch 2004-9-2 04 .338 Contra Costa Pacheco Marsh Marsh east of Martinez and I-680 and east of lone tree Marsh. 5 Comment
  JEPS21278  Baccharis glutinosa J. Thomas Howell 1926-1-17 1627 Contra Costa between Cashion and Las Trampas Ridge Cashion Comment
  UC1119665  Baccharis pilularis R. W. Lundh Sep 1932 159 Contra Costa 1 mi n North Peak; Mt. Diablo Quad. 609 Comment
  UC579857  Baccharis pilularis Annetta Carter 1936-4-19 1120 Contra Costa Red Rock San Francisco Bay Comment
  CAS-BOT-BC98189  Baccharis salicifolia Walter Knight; I. Knight; J. T. Howell; E. McClintock; S. Rae; B. Doyle 1978-9-5 3207 Contra Costa Browns Island Comment
  UC202943  Baccharis salicifolia subsp. salicifolia Chesnut and Drew 1889-4-17 Contra Costa Clayton Comment
  UC651295  Baccharis salicifolia subsp. salicifolia Ira L. Wiggins 1930-4-18 4600 Contra Costa Levee Parks, near ferry Jersey Island Comment
  JEPS12786  Balsamorhiza deltoidea Rimo Bacigalupi with G. T. Robbins 1955-5-4 4978 Contra Costa along road to Irish Canyon (s of and above Nortonville) 426 Comment
  OBI16940  Balsamorhiza deltoidea Rimo Bacigalupi 1955-5-4 4978 Contra Costa S of and above Nortonville, along rd to Irish Cyn 427 Comment
  RSA0033933  Balsamorhiza deltoidea Barbara Ertter, Holly C. Forbes 1997-4-20 15564 Contra Costa North base of Mount Diablo at NE base of Eagle Ridge. Lower end of Eagle Peak Trail. Comment
  CDA21555  Bassia hyssopifolia D. G. Kelch, Michael Park 2008-9-1 8 .293 Contra Costa Carquinez Strait; 200 m W of Pacheco Slough, E of Martinez. Comment
  UC1618272  Bassia hyssopifolia Barbara Ertter, B. Olson, D. Lake, L. Hosley and A. Youngson 1991-10-20 10885 Contra Costa just w Antioch marina (Dow Wetlands Preserve); Dow Wetlands Preserve Comment
  CDA15255  Bellardia trixago G. F. Hrusa, D. Crowe 1998-5-8 14386 Contra Costa Sacramento Delta; E end of Dow Chemical property in Pittsburg. Comment
  JEPS74805  Bellardia trixago L. R. Heckard, T. I. Chuang, and R. Bacigalupi 1975-5-7 4013 Contra Costa ca 1/2 mi e Pinole (just e of Interstate 80 along main route of Santa Fe Railroad) Comment
  POM44500  Bellardia trixago C. C. Hall 1911-5-20 8835 Contra Costa Contra Costa County: rounded hills near concord, alt 100m 100 Comment
  SD26790  Bellardia trixago Paul Covel May 1938 Contra Costa Bet. Martenez and Crockett Comment
  SD30222  Bellardia trixago P. O. Schallert 1943-4-27 Contra Costa 1 mile east of Martinez, in meadow Comment
  UCD122097  Bellardia trixago Roman Gankin 1962-5-18 s.n. Contra Costa Near abandoned railroad bed on east side of Pinehurst Road, ca. 1/4 mile north of junction of this road with Canyon Road, ca. 2 miles west of Moraga. Comment
  CAS-BOT-BC102084  Bidens frondosa F. C. Crawford 1963-9-16 101 Contra Costa Brentwood, Apricot Way. Milen's pipe line Comment
  RSA114082  Blennosperma nanum H. K. Sharsmith 1954-3-24 4409 Contra Costa Hillslope above old Nortonville Mines, near Kirker Pass road between Clayton and Antioch. 305 Comment
  RSA31357  Blennosperma nanum Joseph A. Ewan 1935-3-10 9154 Contra Costa In hills above Nortonville. Comment
  JEPS18804  Blennosperma nanum var. nanum Lauramay Tinsley 1927-1-1 Contra Costa Mt. Diablo Comment
  JEPS33983  Blennosperma nanum var. nanum R. F. Hoover 1938-2-21 2750 Contra Costa Byron Hot Springs Comment
  UC579840  Blennosperma nanum var. nanum Annetta Carter 1937-3-7 1223 Contra Costa one mile e Danville; Sycamore Valley Comment
  CAS-BOT-BC100700  Blennosperma nanum var. nanum Lewis S. Rose 1933-3-10 33008 Contra Costa March Creek Comment
  UC2070516  Blennosperma nanum var. nanum Barbara Ertter with Steve Matson 2003-3-15 18108 Contra Costa Black Diamond Mines Regional Preserve, Black Diamond Trail in SW corner of park. Comment
  POM351055  Blepharizonia laxa T. S. Brandegee 1887-09 s.n. Contra Costa Antioch. Comment
Read comments
Dec 16 2012
  UC311580  Blepharizonia plumosa Miss H. A. Walker 1916-8-28 3922 Contra Costa near Antioch (Los Medanos); Los Medanos Comment
  UC762569  Blepharizonia plumosa R. F. Hoover 1937-8-31 2704 Contra Costa Pittsburg Comment
  SEINET3166336  Boechera breweri subsp. breweri P. J. Alexander, C. D. Bailey 2009-3-30 969 -D Contra Costa Mount Diablo State Park, on North Peak 0.2 miles west of teh summit, 8.8 miles east of central Walnut Creek. 1012 Comment
  UC10106 Image available Boechera breweri subsp. breweri W. H. Brewer 1862-5-14 1086 Contra Costa Summit of Mount Diablo Mount Diablo Comment
  UC565476  Boechera breweri subsp. breweri Herbert L. Mason 1926-3-7 2796 Contra Costa Summit of Mt. Diablo Mt. Diablo Comment
  UC691071  Boechera breweri subsp. breweri Mary L. Bowerman 1933-4-26 1929 Contra Costa between the ridge to the s and North Peak main e ridge (Perkins Canyon branch); Mount Diablo, Perkins Canyon 518 Comment
  UCD102381  Boechera breweri subsp. shastaensis Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 900 Comment
  POM300655  Boisduvalia glabella Mary L. Bowerman 1935-6-28 3173 Contra Costa Mount Diablo: Vernal pool near meridian (300 yards east of meridian fence line) south of summit 488 Comment
  CAS-BOT-BC31334  Bolboschoenus maritimus Walter Knight; Joanne Dean 1978-8-14 3161 Contra Costa Browns Island. Comment
  UCD146728  Bolboschoenus maritimus subsp. paludosus G. F. Hrusa; D. Crowe 1998-5-8 14395 Contra Costa Sacramento-San Joaquin River Delta. East end of Dow Chemical property in Pittsburg. 15 Comment
  CAS-BOT-BC31391  Bolboschoenus robustus J. W. Congdon 1893-7-29 s.n. Contra Costa Martinez Comment
  HSC7467  Bolboschoenus robustus Leo Koch 1940-6-5 1004 Contra Costa Near highway, 2 mi. S of San Rafael ferry dock Comment
  SEINET11748149  Bolboschoenus robustus Unknown 1940-1 1004 a Contra Costa 2 mi S of San Rafael ferry dock Comment
  JEPS68954  Bowlesia incana Edward Lee 1935-3-10 1285 Contra Costa w Watershed of Kirker Creek (Kirker Pass, Donovan Road); Kirker Pass, Donovan Road Comment
  UC566857  Bowlesia incana H. L. Mason 1928-4-29 4419 Contra Costa Mount Diablo, Sycamore Canyon Sycamore Canyon; Mount Diablo, Sycamore Canyon Comment
  CDA20615  Brassica juncea G. F. Hrusa 2006-1-18 s.n. Contra Costa San Francisco Bay Area; Residence in San Pablo at Stanton at San Pablo Ave. 0 Comment
  UC1126847  Brassica nigra R. W. Lundh 1932-7-13 126 Contra Costa 1 mi e of Chaparral Springs (Mount Diablo Quadrangle); Mount Diablo Quadrangle 457 Comment
  UC691083  Brassica nigra Mary L. Bowerman 1938-5-25 3633 Contra Costa Mount Diablo. North Road 2 miles from North Gate. 182 Comment
  UCD164653  Brassica nigra Henry House 1995-5-20 1995- 22 Contra Costa Approximately 50 m from Walnut Blvd, about 1.25 km south of Marsh Creek Road. 30 Comment
  OBI70583  Brassica rapa D. G. Kelch 2008-3-30 8 .029 Contra Costa Carquinez Strait: Crockett. Under Zampa (Carquinez) Bridge 14 Comment
  UC407037  Brassica rapa Ira L. Wiggins 1930-4-18 4609 Contra Costa Jersey Island Comment
  UC34624  Brickellia californica V. King Chesnut 1887-9-11 Contra Costa Mt. Diablo Comment
  UC1134002  Brodiaea terrestris subsp. terrestris C. M. Belshaw 1936-5-9 2079 Contra Costa 1.5 mi e Mulligan Hill; Mt. Diablo Quad. 152 Comment
  CAS-BOT-BC149351  Bromus berteroanus Edward Lee 1936-4-19 1970 Contra Costa San Francisco Bay. Red Rock. Northeast corner of the island. Comment
  CAS-BOT-BC149399  Bromus berteroanus Mary L. Bowerman 1933-4-15 1874 Contra Costa Mount Diablo. Canyon south of Arroyo del Cerro. Rocky knoll 250 feet below spring. Comment
  UC2032822  Bromus carinatus Doran, Andrew Scott 2012-3-20 692 Contra Costa North end of Brooks Island along ridge overlooking artificial spit, southwest of caretakers residence. Comment
  UCD58246  Bromus carinatus A. A. Beetle 1942-3-22 2931 Contra Costa Brooks Island in San Francisco Bay. Comment
  UCD58299  Bromus carinatus Beecher Crampton 1956-5-14 3402 Contra Costa Southeast of Mt. Diablo. Marsh Creek. 640 Comment
  UC1818862  Bromus carinatus var. carinatus Barbara Ertter, Brad Olson 1994-5-7 12749 Contra Costa Send Pt. Molate Beach Park west of Richmond north of San Rafael Bridge, edge of San Francisco Bay. Intact coastal prairies above bluff just south of park, between road and bay, Comment
  UC606737  Bromus carinatus var. carinatus Edward Lee 1936-4-19 1958 Contra Costa San Francisco Bay, Red Rock Red Rock; San Francisco Bay, Red Rock Comment
  SBBG115848  Bromus carinatus var. marginatus B. Crampton 1956-5-14 3393 Contra Costa ca. 7 mi SW of city of Antioch, just E of old mining town of Nortonville Comment
  CDA28880  Bromus diandrus D. G. Kelch 2006-5-7 6 .162 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  POM300672  Bromus diandrus Mary L. Bowerman 1932-4-27 1366 Contra Costa Oyster Ridge, south face of ridge west of Riggs Canyon Comment
  UC691215  Bromus diandrus Mary L. Bowerman 1933-5-8 2005 Contra Costa not far from (but out of sight from) South Entrance (Mount Diablo, Fossil Ridge); Mount Diablo, Fossil Ridge 289 Comment
  UC691228  Bromus diandrus Mary L. Bowerman 1935-5-3 2954 Contra Costa below Garden-of-the-Jungle Gods (Mount Diablo, Fossil Ridge); Mount Diablo, Fossil Ridge Comment
  CHSC116659  Bromus hordeaceus Lowell Ahart; Josephine Guardino 2016-4-19 20791 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the sides of the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  UC692346  Bromus hordeaceus Mary L. Bowerman 1933-4-15 1870 Contra Costa Canyon s of Arroyo del Cerro (Mount Diablo); Mount Diablo Comment
  UC697135  Bromus hordeaceus Mary L. Bowerman 1931-5-13 839 a Contra Costa Mount Diablo, Pine Canyon, 1 mi above spring Pine Canyon; Mount Diablo, Pine Canyon Comment
  UC697215  Bromus hordeaceus Mary L. Bowerman 1931-4-18 732 Contra Costa Mount Diablo, Sycamore Canyon Sycamore Canyon; Mount Diablo, Sycamore Canyon 365 Comment
  CAS-BOT-BC155471  Bromus hordeaceus Mary L. Bowerman 1933-4-15 1870 Contra Costa Mount Diablo. Canyon south of Arroyo del Cerro. Rocky knoll 250 feet below spring. Comment
  UCD58920  Bromus laevipes P. B. Kennedy 1916-5-1 s.n. Contra Costa Pinehurst. Comment
  UCD36919  Bromus madritensis Beecher Crampton 1956-5-14 3395 Contra Costa 3.7 miles southeast of Clayton, on Marsh Creek Road. Comment
  UCD36921  Bromus madritensis Beecher Crampton 1956-5-14 3401 Contra Costa Mount Diablo, south of Windy Point. 640 Comment
  UCD58988  Bromus madritensis Walter Knight 1967-7-9 s.n. Contra Costa Botanical Garden, Tilden Park. Comment
  UC1024733  Bromus madritensis subsp. rubens Leo Whitney 1935-4-21 3056 Contra Costa Corral Hollow Comment
  UC692344  Bromus madritensis subsp. rubens Mary L. Bowerman 1931-5-7 810 Contra Costa Mount Diablo, North Peak North Peak; Mount Diablo, North Peak Comment
  UC697124  Bromus madritensis subsp. rubens Mary L. Bowerman 1935-5-8 2979 Contra Costa first main ridge e of Pioneer Camp (Mount Diablo); Mount Diablo Comment
  CDA29488  Bromus pseudolaevipes D. G. Kelch, Troy MacGregor 2009-5-1 9 .276 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  UCD59573  Bromus rubens P. B. Kennedy 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  UCD59614  Bromus rubens Beecher Crampton 1956-5-14 3410 Contra Costa Southern boundary of Mt. Diablo State Park. Comment
  CAS-BOT-BC161947  Bromus rubens Mary L. Bowerman 1933-3-18 1751 Contra Costa Mount Diablo below the chaparral belt, a little east of the meridian. 548 Comment
  CAS-BOT-BC161951  Bromus rubens Mary L. Bowerman 1933-3-18 1751 Contra Costa Mount Diablo below the chaparral belt, a little east of the meridian. 548 Comment
  RSA720800  Bromus tectorum Mary L. Bowerman 1978-5-26 s.n. Contra Costa Mount Diablo. N of Lower Summit parking lot. Comment
  UC2028525  Calamagrostis rubescens Barbara Ertter 1997-11-1 15881 Contra Costa South side Mount Diablo, near Balancing Rock on Knobcone Point Road Comment
  JEPS112033  Calandrinia ciliata D. G. Kelch 2003-3-21 03 .71 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  UC1136613  Calandrinia ciliata R. W. Lundh 1933-3-25 219 Contra Costa 1 mi w and 1/2 mi n Lafayette (Acalanes Grant); Concord Quadrangle Comment
  UC692020  Calandrinia ciliata Mary L. Bowerman 1939-5-2 3741 Contra Costa by road to Barbecue Terrace ((off South Road)); Mount Diablo 563 Comment
  UC85557  Calandrinia ciliata Katharine Brandegee May, 1889 Contra Costa Antioch Comment
  UCR12027  Calandrinia ciliata Coleta A. Lawler 1964-5-8 56 Contra Costa San Francisco Bay Region, Hampton Road, 3 .7 mi south of junction with Alhambra Valley Road; c. 10 miles northwest of Lafayette 46 Comment
  JEPS108319  Calendula arvensis David Gowen 2005-2-23 166 Contra Costa Mt. Diablo State Park. Juniper Trail just south of Silver Spring. Comment
  UC2029035  Calendula arvensis Barbara Ertter 2000-3-30 16907 Contra Costa North side of Mount Diablo, Mitchell Canyon Road uphill of lowermost switchback, exposed roadside. Comment
  RSA0026152  Calochortus argillosus Barbara Ertter, Dan Norris 1998-6-18 16209 Contra Costa South Gate Road on south flank of Mount Diablo, ca. 1 mile in from park boundary. 305 Comment
  JEPS112497  Calochortus luteus D. G. Kelch 2004-5-7 04 .180 Contra Costa Ca ada del Cierbo 40 Comment
  UC2028365  Calochortus luteus Barbara Ertter 1998-6-20 16259 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, NE base of Haystack Hill Comment
  CAS-BOT-BC132506  Calochortus pulchellus John Thomas Howell 1940-4-21 15397 Contra Costa Pine Canyon, Mt. Diablo Comment
  JEPS55634  Calochortus pulchellus Wayne Roderick 1967-5-30 Contra Costa ca 7 rd mi e Clayton (Marsh Creek Road, between Marsh Creek Stables and Inn) Comment
  JEPS61709  Calochortus pulchellus W. L. Jepson 1918-6-3 7570 Contra Costa Donner Canyon Mt. Diablo 533 Comment
  RSA29584  Calochortus pulchellus Joseph A. Ewan 1934-4-8 8774 Contra Costa Mt. Diablo: South Fork Marsh Creek. Comment
  SBBG52901  Calochortus pulchellus J. D. Hobson 1962-3-9 36 Contra Costa Mt Diablo Comment
  SBBG57749  Calochortus pulchellus M. N. Ackley -Apr-1930 641 Contra Costa Mt Diablo Comment
  UC1300909  Calochortus pulchellus Helen K. Sharsmith 1962-5-20 5069 Contra Costa Morgan Territory Road, ne slopes of Mount Diablo San Francisco Bay Region, Mount Diablo 365 Comment
  UC194919  Calochortus pulchellus H. M. Hall 1916-5-30 10132 Contra Costa near Pine Canyon; Mt. Diablo 365 Comment
  UC3461  Calochortus pulchellus W. H. Brewer 1862-5-7 1063 Contra Costa n slope Mount Diablo Comment
  UC767890  Calochortus pulchellus R. F. Hoover 1938-5-4 3339 Contra Costa Marsh Creek canyon Marsh Creek Comment
  UC843700  Calochortus pulchellus Harold V. Manor 1913-5-18 Contra Costa Mt. Diablo Comment
  CDA19935  Calochortus splendens V. Guise 2002-6-25 PDR P 134004 Contra Costa Northern California; Old School House Rd, Tasajara. 0 Comment
  UC1601662  Calochortus umbellatus W. H. Brewer 1862-5-1 1035 Contra Costa s of Camp 69; Walnut Creek Comment
  CAS-BOT-BC494047  Calochortus venustus John Thomas Howell 1931-5-12 6471 Contra Costa Nortonville Comment
  RSA0029672  Calochortus venustus Barbara Ertter, Susan D'Alcamo 1998-6-12 16156 Contra Costa North Gate Road on west flank of Mount Diablo, ca 1/2 mile below upper Turtle Rock Ranch buildings. 518 Comment
  UC2028302  Calystegia malacophylla subsp. pedicellata Barbara Ertter, Susan D'Alcamo 1998-6-12 16189 Contra Costa North Peak Trail south of Prospectors Gap on east side of Mount Diablo summit. Comment
  JEPS111812  Calystegia purpurata subsp. purpurata A. G. Murdock 2003-6-2 79 Contra Costa Franklin Canyon - McHarry Ranch Rd. West side of road near fire road gate 126 Comment
  UC1057486  Calystegia sepium subsp. binghamiae G. Thomas Robbins 1940-5-19 327 Contra Costa San Joaquin River e Antioch; San Joaquin River e of Antioch Comment
  UC23168  Calystegia sepium subsp. binghamiae Jos. Burtt Davy 1900-6-7 6664 Contra Costa near Martinez; near Martinez Comment
  UC1618171  Calystegia sepium subsp. binghamiae Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10867 Contra Costa Dow Wetlands Preserve, just W of Antioch marina; along levee at water's edge, accessed from marina Comment
  CAS-BOT-BC224745  Calystegia sepium subsp. limnophila R. K. Brummitt; B. Ertter 1998-5-6 19792 Contra Costa Antioch. Sea level Comment
  UCD119366  Calystegia sepium subsp. limnophila Jean Shepard; Scott Shepard 2011-8-28 857 Contra Costa Antioch Marina. South side of the San Joaquin River, east of the San Francisco Bay, approximately 3 1/4 miles west of the Antioch Bridge. 0 Comment
  CDA39895  Calystegia sepium subsp. limnophila T. C. Fuller 1964-11-6 12807 Contra Costa Northeast side of Bethel Island. 0 Comment
  CAS-BOT-BC436386  Calystegia subacaulis John Thomas Howell 1933-5-14 11270 Contra Costa Hills east of St. Mary's College Comment
  UC1794958  Calystegia subacaulis R. K. Brummitt and B. Ertter 1998-5-13 19841 Contra Costa S of Antioch, Black Diamond Mine Regional Park. Comment
  UC2029024  Calystegia subacaulis Barbara Ertter 1999-7-17 16760 Contra Costa El Cerrito, west side of Arlington Ave. in small triangle of land between Moeser Ln. and Terrace Dr., among mowed Avena. Comment
  UC1794986  Calystegia subacaulis subsp. subacaulis R. K. Brummitt and B. Ertter 1998-5-6 19788 Contra Costa Mt. Diablo, NE side, Donner Track 400 Comment
  UC2028171  Calystegia subacaulis subsp. subacaulis Barbara Ertter 1998-5-3 16069 Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, between Wall Point and Secret Trail junction. Comment
  UC2028306  Calystegia subacaulis subsp. subacaulis Barbara Ertter, Susan D'Alcamo 1998-6-12 16199 Contra Costa Along Curry Canyon Road just east of Curry Point, south side of Mount Diablo. Comment
  RSA454744  Camissonia campestris subsp. campestris H. de Forest 1930-4-6 s.n. Contra Costa [No location information on label.] Comment
  JEPS12784  Camissonia contorta Rimo Bacigalupi with G. T. Robbins 1955-5-4 4977 Contra Costa s. of and above Nortonville (site) 304 Comment
  UC2028261  Camissonia hirtella Barbara Ertter 1999-6-12 16719 Contra Costa Knobcone Point Road on south side of Mount Diablo, burned chamissal at head of NE fork of Sycamore Creek. Comment
  POM257269  Camissonia micrantha H. L. Mason 1929-3-31 5160 Contra Costa Along San Joaquin River Comment
  UC1784899  Camissoniopsis hirtella Barbara Ertter with Thomas J. Delendick 1996-5-2 14609 Contra Costa Mount Diablo, lower summit parking lot 1127 Comment
  UC635405  Camissoniopsis micrantha H. L. Mason 1929-3-31 5160 Contra Costa Antioch San Joaquin River (sand dike along river) Comment
  UC29002  Campanula exigua Edw. L. Greene 1892-6-20 Contra Costa Mount Diablo Comment
  SEINET10461956  Campanula exigua Joseph W. Congdon 1896-5-30 Congdon s.n. Contra Costa Summit of Diablo Comment
  UC2029116  Campanula griffinii Barbara Ertter with D. Gowen, J. Ginochio, M. Park, S. Matson, A. Moore, S. D'Alcamo, J. Greenhouse, K. Kersh and J. Gawthrup 2005-4-8 18570 Contra Costa Long Ridge on west flank of Mt. Diablo, springs and pond on Ginochio property near park boundary. Comment
  UC1051246  Campanula isophylla N. Floy Bracelin 1942-9-9 2279 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1051244  Campanula rotundifolia N. Floy Bracelin 1943-7-11 2546 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CDA23569  Capsella bursa-pastoris D. G. Kelch 2008-3-3 8 .031 Contra Costa Carquinez Strait; Crockett. Under Zampa (Carquinez) Bridge. Comment
  UC2029104  Cardamine Barbara Ertter 2000-3-30 16921 Contra Costa North side of Mount Diablo, lower end of Back Canyon Trail. Comment
  CAS-BOT-BC37394  Cardamine californica John Thomas Howell 1933-5-14 11255 Contra Costa Hills east of Saint Mary's College. Comment
  UC1126900  Cardamine californica R. W. Lundh 1933-3-20 215 Contra Costa 2 mi nw Walnut Creek, Canada del Hambro; Concord Quad. 182 Comment
  UCD114186  Cardamine californica Morris Halperin 1929-4-21 s.n. Contra Costa St. Mary's College campus. Comment
  LA204290  Cardamine californica Carl B. Wolf; 1937-3-28 8319 Contra Costa 2 mi. S of Pinole on San Pablo Road 30 Comment
  UC10419  Cardamine californica var. integrifolia W. H. Brewer 1862-5-1 1039 Contra Costa Walnut Creek Comment
  JEPS111859  Cardamine oligosperma D. G. Kelch 2004-3-5 04 .8 Contra Costa Sky Ranch Dutra Fire Road. Franklin Canyon 250 Comment
  UC691070  Cardamine oligosperma Mary L. Bowerman 1931-3-29 618 Contra Costa East Cave Point Ridge , East Cave Point Ridge (Mount Diablo) Comment
  RSA134229  Cardamine oligosperma P. H. Raven, H. L. Mason, Robert Ornduff 1957-4-11 10623 Contra Costa Curry Canyon, four miles south of the Recreation Ground. Comment
  CDA40559  Cardaria chalepensis V. Guise & B. Slate 2014-4-8 PDR# 070 P06223870 Contra Costa Concord; west side of Crystal Ranch Road, 100 yards south of Ygnacio Valley Road, City of Concord property. 0 Comment
  UC1795887  Cardaria draba Barbara Ertter, Rich Rabeler 1994-6-6 12819 Contra Costa Point Isabel in south Richmond; south of Central Avenue in brome field. Comment
  UC691372  Carduus pycnocephalus subsp. pycnocephalus Mary L. Bowerman 1935-6-28 3179 Contra Costa about the corral of the Old Sloan place (Inner Black Hills); Mount Diablo, Inner Black Hills Comment
  CDA15244  Carduus tenuiflorus G. F. Hrusa, D. Crowe 1998-5-8 14375 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Comment
  JEPS79443  Carduus tenuiflorus Edward Lee with Annetta Carter 1935-6-13 1431 Contra Costa s Richmond Panhandle Boulevard; Richmond Comment
  CAS-BOT-BC281806  Carduus tenuiflorus Mary L. Bowerman 1934-6-9 2547 Contra Costa Mount Diablo. South Road, bend by Diablo Trail sign reading 4.4 miles to summit: Roadside 304 Comment
  POM301033  Carduus tenuiflorus Mary L. Bowerman 1934-6-9 2547 Contra Costa South Road, bend by Diablo Trail sign reading 4.4 miles to summit 305 Comment
  CDA28828  Carex barbarae D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 07 .251-B Contra Costa CA Delta; Along the old San Joaquin River Channel, S of Clifton Court Forebay and SE of Byron. Comment
  JEPS25138  Carex barbarae G. Thomas Robbins 1959-5-16 4008 Contra Costa Caly [clay] banks and rivulet just north of Point Orient, Potrero Hills, overlooking San Francisco Bay, Richmond Comment
  UC1607683  Carex barbarae Barbara Ertter, Brad Olson 1991-9-28 10846 Contra Costa between Orinda and El Sobrante (s end of San Pablo Reservoir); San Pablo Reservoir 94 Comment
  UC70619  Carex barbarae Jos. Burtt Davy 1899-4-19 7846 Contra Costa Glorietta inner coast range mountains Comment
  CAS-BOT-BC19204  Carex barbarae Mary L. Bowerman 1938-10-10 3724 Contra Costa Mount Diablo. Junction between North and South Roads. 624 Comment
  CAS-BOT-BC19210  Carex barbarae Mary L. Bowerman 1935-9-13 3344 Contra Costa Mount Diablo. Frog Pond. At head of Forg Pond spring. Comment
  CAS-BOT-BC119740  Carex nebrascensis Walter Knight 1979-6-15 3377 Contra Costa Crooked Slough. Browns Island. Comment
  CHSC114386  Carex obnupta D. G. Kelch; Michael Park, Abigail Moore 2007-5-1 7251 B Contra Costa Along the old San Joaquin River Channel, S of Clifton Court Forebay and SE of Byron. 0 Comment
  SEINET11263976  Carex praegracilis Barbara Ertter, Dan Norris 2000-12-3 17553 Contra Costa South side of Mount Diablo, Devils Slide Trail above Sulfur Springs on nw fork of Sycamore Creek.; 0 427 Comment
  CAS-BOT-BC117547  Carex serratodens Lewis Samuel Rose 1935-5-16 35163 Contra Costa Mt. Diablo. Comment
  CAS-BOT-BC117551  Carex serratodens Miss Mary Leolin Bowerman 1933-4-15 1856 Contra Costa Canyon south of Arroyo del Cerro Comment
  POM222732  Carex serratodens L. S. Rose 1935-5-16 35163 Contra Costa Mt. Diablo. Comment
  UC691959  Carex serratodens Mary L. Bowerman 1933-4-15 1856 Contra Costa canyon s Arroyo del Cerro (hollow in gully near main stream); Mount Diablo Comment
  UC1818878  Carex serratodens Barbara Ertter, Kristin Ertter 1995-7-11 14487 Contra Costa Partial shade of willows, mudflat around Pine Pond inlet. Comment
  UC1618162  Carex subbracteata Barbara Ertter, Chris Thayer 1993-5-7 11694 Contra Costa Hopkins Spring 1/2 mile SE of Inspiration Point on Wild Canyon Road, East Bay Municipal Utilities District land east of Tilden Park 304 Comment
  JEPS111891  Carex tumulicola D. G. Kelch 2004-5-5 04 .202 Contra Costa Chevy's Hill. West of I-80 between Richmond Parkway and Hilltop exit 57 Comment
  JEPS111902  Carex tumulicola D. G. Kelch 2005-3-24 05 .69 Contra Costa Chevy's Hill 57 Comment
  CAS-BOT-BC115559  Carex tumulicola Walter Knight; Irja Knight 1967-7-9 2067 Contra Costa Regional Parks Botanic Cargen. Comment
  UC2070591  Castilleja affinis Barbara Ertter with Steve Matson 2003-3-15 18100 Contra Costa Black Diamond Mines Regional Preserve, north slope of Rose Hill. Comment
  UC1039781  Castilleja affinis subsp. affinis H. L. Mason 1928-4-29 4438 Contra Costa Mount Diablo Comment
  UC27154  Castilleja ambigua subsp. ambigua J. Burtt Davy 1900-3-24 6523 Contra Costa Pt. Richmond Comment
  UCSB39456  Castilleja applegatei subsp. martinii Fritzke, Sue 1980-3-29 Contra Costa 0.5 miles from the east end of Ball Rd., in the Shell Ridge Open Space Area, SE of the rock quarry 124 Comment
  UC1481545  Castilleja densiflora subsp. densiflora Neil Havlik 1980-5-14 917 Contra Costa e side Pt. Pinole Regional Shoreline Comment
  CHSC24847  Castilleja exserta M. A. Callahan 1976-4-11 10 Contra Costa Top of ridfe 140 m. ene of house at 1976 Mohawk Dr. Pleasant Hill. 152 Comment
  UC2070586  Castilleja exserta Barbara Ertter 2003-3-28 18131 Contra Costa Round Valley Regional Preserve, upper Hardy Canyon. Comment
  JEPS15210  Castilleja exserta subsp. exserta C. M. Belshaw 1936-5-9 2082 Contra Costa 0.5 mi n Nortinville; Mt. Diablo Quad. 274 Comment
  JEPS15212  Castilleja exserta subsp. exserta C. M. Belshaw 1936-5-11 2096 Contra Costa 5.25 mi e Danville; Mt. Diablo 289 Comment
  UC1377744  Castilleja foliolosa W. J. Dress 1951-3-16 3054 Contra Costa about 1 mi e Berkeley (along Fish Ranch Road) Comment
  UC691651  Castilleja foliolosa Mary L. Bowerman 1933-3-25 1762 Contra Costa Diablo Stock Farm (Stone Valley) Canyon (= Emmons Canyon) Stone Valley; Mount Diablo Comment
  UC41762  Castilleja subinclusa subsp. franciscana J. P. Tracy 1900-3-24 616 Contra Costa Point Richmond; San Francisco Bay Region 15 Comment
  SEINET10582750  Castilleja wightii Lawrence R. Heckard 1973-6-6 Heckard 3421 Contra Costa Ravine behind La Moine Park (Richmond). 122 Comment
  CAS-BOT-BC41015  Caulanthus flavescens Mary L. Bowerman 1935-4-22 2879 Contra Costa Mount Diablo. North Road 2 miles from North Gate, just west of chaparral. 213 Comment
  CAS-BOT-BC41038  Caulanthus flavescens Mary L. Bowerman 1933-4-15 1863 Contra Costa Mount Diablo. Second Ridge south of Arroyo del Cerro. 396 Comment
  CAS-BOT-BC40485  Caulanthus lasiophyllus Bolander 1863-1-1 368 Contra Costa San Pablo Landing. Comment
  CAS-BOT-BC48835  Ceanothus cuneatus W. C. Blasdale 1896-2-29 s.n. Contra Costa Mt. Diablo Comment
  RSA753076  Ceanothus cuneatus Dylan O. Burge 2007-5-9 DOB- 916 c Contra Costa Mount Diablo State Park: roadside on South Gate Road 1.5 road miles (2.4 km) N of entrance gate, 6.38 km 67 degrees (True) ENE of DAnville. 380 Comment
  UC1071131  Ceanothus cuneatus var. cuneatus R. C. Wilson 1935-3-12 123 Contra Costa 1 mi se, Wall Pt.; Mt. Diablo quad. 335 Comment
  UCD124005  Ceanothus cuneatus var. cuneatus D. O. Burge 2007-5-9 916 e Contra Costa Mount Diablo State Park, roadside on South Gate Road, 1.5 road miles (2.4 km) north of entrance gate, 6.38 km 67 deg. (True) ENE of Danville. 380 Comment
  OBI10513  Ceanothus gloriosus var. exaltatus Robert F. Hoover 1962-3-23 8541 Contra Costa Cultivated in Tilden park botanic garden. Originally from 11 mi S of Guerneville (8 mi W of Sebastopol, Sonoma Co) Comment
  CAS-BOT-BC51494  Ceanothus oliganthus var. sorediatus C. H. M. 1919-8-24 s.n. Contra Costa Las Trampas Peak Comment
  CAS-BOT-BC51496  Ceanothus oliganthus var. sorediatus Mary L. Bowerman 1930-6-22 365 Contra Costa Mitchell Canyon: North slope Comment
  JEPS42309  Ceanothus oliganthus var. sorediatus H. H. Haworth 1917-5-3 Contra Costa Redwood Peak Oakland Hills Comment
  UC692588  Ceanothus oliganthus var. sorediatus Mary L. Bowerman 1935-5-30 3084 Contra Costa By Donner Canyon stream 161 Comment
  UC2028009  Centaurea calcitrapa Barbara Ertter with Amy Rusev 1998-1-17 15894 Contra Costa Lime Ridge Open Space at NW foot of Mount Diablo. Comment
  CAS-BOT-BC277053  Centaurea melitensis Joseph Andorfer Ewan 1936-5-3 9506 Contra Costa Wildcat Creek Comment
  CAS-BOT-BC284464  Centaurea solstitialis Walter Knight; Wayne Roderick; Steve Edwards; Bob Doyle 1978-9-19 3249 Contra Costa Browns Island, Alder Point Comment
  UC2028274  Centaurium davyi Barbara Ertter 1999-6-12 16702 Contra Costa Black Hawk Ridge Road between Knobcone Point Road and NE fork of Sycamore Creek, South side of Mount Diablo. Comment
  UC1795817  Centaurium muehlenbergii Barbara Ertter 1994-6-26 12873 Contra Costa South of Point Molate Beach Park in west Richmond north of San Rafael Bridge, Franciscan Formation bluffs, sheltered bank along beach just south of park boundary. Comment
  UC2028105  Centranthus ruber Barbara Ertter with Christopher Baysdorfer 1998-5-10 16119 Contra Costa Lime Ridge Open Space northwest of Mount Diablo. Comment
  JEPS88689  Centromadia fitchii John Thomas Howell 30904 Contra Costa near Turtle Rock; Mt. Diablo 259 Comment
  UC1069518  Centromadia fitchii H. S. Yates 1934-9-2 4086 Contra Costa 2 mi s Mt. Diablo; Mt. Diablo Quad. 579 Comment
  UC421693  Centromadia fitchii John Thomas Howell 1929-9-21 4388 Contra Costa 1 mi se Clayton Comment
  CAS-BOT-BC288541  Centromadia fitchii John Thomas Howell 1955-8-24 30904 Contra Costa Mt Diablo near Turtle Rock 259 Comment
  CAS-BOT-BC288544  Centromadia fitchii James I. McMurphy 1909-5-20 s.n. Contra Costa Antioch Hills Comment
  CAS-BOT-BC288549  Centromadia fitchii Rimo Bacigalupi 1922-9-24 s.n. Contra Costa Along road between Clayton Mitchell Comment
  UC2028358  Centromadia fitchii Barbara Ertter with Tony Morosco 1998-7-11 16369 Contra Costa North base of Mount Diablo, ridge NE of Mitchell Canyon staging area, N of Bruce Lee Road Comment
  CAS-BOT-BC288874  Centromadia parryi subsp. congdonii R. E. Preston 1998-10-6 1178 Contra Costa Along flood plain of Alamo Creek, along Dougherty Rd, N of the Alameda/Contra Costa County line 143 Comment
  UC1357605  Centromadia parryi subsp. congdonii R. F. Hoover 1966-8-31 9943 Contra Costa e Danville Comment
  CDA29244  Centromadia pungens D. G. Kelch 2005-11-23 06 .507B Contra Costa East Bay.; Point Molate. Comment
  SD175794  Centromadia pungens D. G. Kelch 2005-11-23 06 507 B Contra Costa Point Molate. 4 Comment
  UC473441  Centromadia pungens subsp. pungens John Thomas Howell 1930-9-28 5489 Contra Costa 2 mi from Concord (on road to Walnut Creek) Comment
  CAS-BOT-BC279182  Centromadia pungens subsp. pungens H. M. Hall 1923-10-10 11909 Contra Costa Just west of Pittsburg Comment
  CAS-BOT-BC279186  Centromadia pungens subsp. pungens David D. Keck 1932-7-7 1736 Contra Costa Just east of Nichols Comment
  UC70203  Centromadia pungens subsp. pungens J. Burtt Davy 1898-5-1 Contra Costa Livermore Pass Region of Mount Diablo Comment
  RSA0069381  Cerastium glomeratum Katie Gallagher, Nick Jensen 2014-4-26 208 Contra Costa Las Trampas Regional Wilderness. 487 Comment
  CAS-BOT-BC137007  Cercocarpus betuloides var. betuloides H. L. Dale 1927-3-1 s.n. Contra Costa Mt. Diablo Comment
  UC555660  Cercocarpus betuloides var. betuloides Herbert L. Mason 1926-3-7 2710 Contra Costa Mount Diablo Comment
  UC34726  Chaenactis glabriuscula var. glabriuscula Chesnut and Drew Contra Costa Summerville Comment
  POM54137  Chaenactis glabriuscula var. megacephala C. F. Baker 1903-4-27 2940 Contra Costa Antioch Comment
  UC692715  Chamaesyce ocellata Mary L. Bowerman 1932-8-27 1517 Contra Costa between Turtle Rock and pond to the south Comment
  UC2028248  Chamaesyce ocellata subsp. ocellata Barbara Ertter, Mary Bowerman, Lisa Schultheis 1998-8-21 16402 Contra Costa North Gate Road on west side of Mount Diablo, 1 mile below Junction. Comment
  UC2031491  Cheilanthes Barbara Ertter with David Gowen 2014-4-12 21718 Contra Costa On north side of Prospectors Gap Road ca 1 mile east of Mount Diablo summit, burnt in previous year's fire Comment
  CAS-BOT-BC70278  Cheilanthes intertexta John Thomas Howell 1955-3-6 30145 Contra Costa between South & North peaks of Mt. Diablo Comment
  CDA15274  Chenopodium album G. F. Hrusa, D. Crowe, R. York 1998-7-17 14711 Contra Costa Sacramento Delta; E end of Dow Chemical property in Pittsburg. Comment
  UC2012997  Chenopodium ambrosioides Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14925 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  UC14076  Chenopodium californicum Chesnut and Drew 1889-4-18 Contra Costa Antioch; sand hills Comment
  JEPS99594  Chenopodium murale Mary Bowerman 1993-10-22 Contra Costa Mount Diablo, Pine Pond. Comment
  CDA39315  Chlorogalum pomeridianum var. pomeridianum D. G. Kelch 2005-6-24 5 .387 Contra Costa Carquinez Strait Region; 5th Street Prairie, Crockett. Comment
  UC2028983  Chorizanthe membranacea Barbara Ertter 2000-5-14 17015 Contra Costa Donner Basin on north side of Mount Diablo, Falls Trail north of Wild Oat Canyon. Comment
  UC188732  Chorizanthe uniaristata M. K. Curran 1884-1 Contra Costa near Mount Diablo; near Mount Diablo Comment
  JEPS38066  Chrysolepis chrysophylla var. minor W. L. Jepson Oct 1909 3495 Contra Costa Moraga Ridge Comment
  JEPS38085  Chrysolepis chrysophylla var. minor H. M. Wheeler 1943-8-15 27500 Contra Costa Moraga Ridge Comment
  OBI3376  Chrysolepis chrysophylla var. minor Neil Havlik 1969-7-18 501 Contra Costa Moraga Ridge, east of Oakland 335 Comment
  UC20920  Cicuta maculata var. bolanderi Jos. Burtt Davy 1900-6-7 6668 Contra Costa near Martinez Comment
  POM215028  Cirsium brevistylum Alice Eastwood 1931-5-30 18618 Contra Costa Oak Spring Comment
  RSA0070597  Cirsium cymosum C. M. Belshaw 1936-5-7 2050 Contra Costa 2 miles north of Danville 244 Comment
  UC2070512  Cirsium cymosum Barbara Ertter with Mike Park, David Gowen 2004-7-17 18442 Contra Costa North side Mount Diablo, west of Twin Peaks. Comment
  UC1953204  Cirsium occidentale David Keil with Barbara Ertter et al. 2000-6-18 28815 B Contra Costa Mount Diablo State Park. Lower part of Jumper [Juniper] Trail above Laurel Dell picnic area. Comment
  CDA33850  Cirsium occidentale D. G. Kelch 2010-5-15 10 .127 Contra Costa Mt. Diablo. Trail from Juniper Camp to Deer Flat. 0 Comment
  SD245260  Cirsium occidentale var. venustum David Keil, Barbara Ertter, et al 2000-6-18 28815 D Contra Costa Mount Diablo State Park. Lower part of Jumper Trail above Laurel Dell picnic area. 914 Comment
  UC691386  Cirsium vulgare Mary L. Bowerman 1932-11-19 1659 Contra Costa Lower Grapevine Spring Mount Diablo, Lower Grapevine Spring Comment
  UC1795899  Clarkia Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14638 Contra Costa Little Pine Creek at northwest foot of Mt. Diablo, along trail connecting North Gate Road to Castle Rock Road, Diablo Foothills Regional Park; grassy hillside. Comment
  UC924273  Clarkia affinis H. S. Reed 1940-4-30 344 Contra Costa ne slopes Mount Diablo (Marsh Creek road) 243 Comment
  UC692439  Clarkia biloba Mary L. Bowerman 1935-6-15 3139 Contra Costa below Ransom Point (Eagle Point Ridge); Mount Diablo 822 Comment
  UC85528  Clarkia biloba Katharine Brandegee 1907-7-4 Contra Costa between Martinez and Port Costa Comment
  CAS-BOT-BC163605  Clarkia biloba subsp. biloba A. D. E. Elmer 1903-5-1 4319 Contra Costa Mount Diablo Comment
  CAS-BOT-BC163608  Clarkia biloba subsp. biloba A. D. E. Elmer 1903-5-1 4319 Contra Costa Mount Diablo Comment
  JEPS111566  Clarkia biloba subsp. biloba D. G. Kelch 2003-8-13 03 .124 Contra Costa Vaca Canyon Locally common herb to 20 cm on n facing road cuts 165 Comment
  CAS-BOT-BC163603  Clarkia biloba subsp. biloba C. L. Hitchcock 1928-6-5 15 Contra Costa Between Port Costa and Crockett, 1 mile west of Port Costa 5 Comment
  POM153229  Clarkia biloba subsp. biloba C. L. Hitchcock 1928-6-5 15 Contra Costa Between Port Costa and Crockett, 1 mile west of Port Costa. 5 Comment
  JEPS75483  Clarkia concinna subsp. concinna P. F. Yorks 1975-6-10 432 Contra Costa ca. 1.9 km s Bear Creek Road (on Hampton Rd., n of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  UC634661  Clarkia concinna subsp. concinna David R. Goddard 1927-5-23 170 Contra Costa San Pablo Creek Canyon Comment
  UC2028989  Clarkia concinna subsp. concinna Barbara Ertter 2000-5-14 17005 Contra Costa Donner Canyon on north side of Mount Diablo, serpentinitic sites in general area of junction of Donner Canyon, Cardinet Oaks, and Meridian Ridge roads, edged by Arctostaphylos glauca et al. Comment
  UC2028270  Clarkia purpurea Barbara Ertter 1999-6-12 16707 Contra Costa Black Hawk Ridge Road between Knobcone Point Road and NE fork of Sycamore Creek, South side of Mount Diablo. Comment
  RSA60760  Clarkia purpurea subsp. purpurea Edward L. Greene 1889-05 s.n. Contra Costa Martinez Comment
  CAS-BOT-BC163669  Clarkia purpurea subsp. quadrivulnera Alice Eastwood 1915-5-30 4549 Contra Costa Mt. Diablo Comment
  RSA448290  Clarkia purpurea subsp. quadrivulnera Bonnie C. Templeton 1962-6-10 s.n. Contra Costa Mt Diablo. Comment
  UC692442  Clarkia purpurea subsp. quadrivulnera Mary L. Bowerman 1931-5-2 799 Contra Costa foot Eagle Point ridge; Mount Diablo 228 Comment
  RSA0059918  Clarkia purpurea subsp. quadrivulnera Glenn A. Gorelick 1967-5-20 s.n. Contra Costa Russelman Park, Mt. Diablo State Park Comment
  UC634710  Clarkia purpurea subsp. quadrivulnera H. L. Mason 1928-4-26 4379 Contra Costa hills around Berkeley and Oakland Comment
  UC692486  Clarkia purpurea subsp. viminea Mary L. Bowerman 1935-5-1 2928 Contra Costa 2 mi from North Gate (North Road); Mount Diablo 182 Comment
  UC1196998  Clarkia rubicunda Joseph P. Tracy 1935-7-6 14039 Contra Costa Moraga 152 Comment
  UC1279898  Clarkia rubicunda Peter H. Raven 1957-6-20 10950 Contra Costa e end Tilden Regional Park (hillside at Inspiration Point) Comment
  UC1279947  Clarkia rubicunda Peter H. Raven 1957-7-5 11049 Contra Costa 0.2 mi from tip Point Richmond 106 Comment
  SEINET10777205  Clarkia rubicunda Barbara J. Ertter, J. Travis Columbus 1990-6-10 Ertter 9103 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill; jct of Briones Crest and Table Top trails on grassy knoll E of Briones Peak. 427 Comment
  UC113995  Clarkia rubicunda Katharine Brandegee 1908-7-3 Contra Costa n side Point Isabel (type locality) Comment
  CAS-BOT-BC165453  Clarkia unguiculata John Thomas Howell 1931-5-12 6481 Contra Costa North side of Mt. Diablo Comment
  CAS-BOT-BC165455  Clarkia unguiculata Mary L. Bowerman 1930-6-3 235 Contra Costa North Road 1.9 miles from North Gate 167 Comment
  RSA144626  Clarkia unguiculata William M. Klein 1958-6-9 439 Contra Costa Rolling coastal sandhills behind the Antioch sewage treatment plant Comment
  JEPS48618  Claytonia exigua subsp. exigua Elsa Kraeger 1926-3-7 Contra Costa w side Mt. Diablo Comment
  UC692543  Claytonia exigua subsp. exigua Mary L. Bowerman 1933-4-15 1875 Contra Costa s of (canyon s, below spring) Arroyo del Cerro; Mount Diablo 76 Comment
  UC1818931  Claytonia exigua subsp. exigua Barbara Ertter, Brad Olson, Diane Lake 1996-4-14 14592 Contra Costa Mount Diablo; ; North Peak of Mt. Diablo; open rocky flats. Comment
  UCD102390  Claytonia gypsophiloides Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. North Peak Road to North Peak. 880 Comment
  POM164052  Claytonia gypsophiloides Edward L. Greene 1903-4-28 4611 Contra Costa Mitchell s canon, Mt. Diablo. Comment
  UC692537  Claytonia parviflora subsp. parviflora Mary L. Bowerman 1933-6-14 2276 Contra Costa e of Knob-cone Point; Mount Diablo, Inner Black Hills Comment
  UC692653  Claytonia parviflora subsp. parviflora Mary L. Bowerman 1933-5-3 1967 Contra Costa Mountain Springs Canyon Mount Diablo (just below the deer trough (Pioneer Road)) Comment
  HSC17691  Claytonia perfoliata subsp. mexicana D. A. Shally 1965-4-18 33 Contra Costa Canyon, 1 mi. N of Canyon Store Comment
  UC1057451  Claytonia perfoliata subsp. perfoliata G. Thomas Robbins 1937-4-25 148 Contra Costa 2 mi e Alamo Comment
  UC545780  Clematis lasiantha Annetta M. Carter 1935-6-1 873 Contra Costa n.w. slope of main peak Mt. Diablo 975 Comment
  JEPS112470  Clinopodium douglasii D. G. Kelch 2005-5-1 05 .184 Contra Costa Crockett - Edwards Canyon 150 Comment
  UC1301183  Collinsia heterophylla Helen K. Sharsmith 1962-4-18 4949 Contra Costa vicinity of Martinez (near McEwen Road); San Francisco Bay Region 106 Comment
  UC691495  Collinsia heterophylla Mary L. Bowerman 1935-3-16 2739 Contra Costa Mount Diablo, e fork of Arroyo del Cerro Arroyo del Cerro; Mount Diablo, Arroyo del Cerro 262 Comment
  SEINET10964450  Collinsia heterophylla John G. Lemmon 1872-1 Lemmon s.n. Contra Costa Mt. Diablo. Comment
  POM194561  Collinsia sparsiflora Y. Mexia 1929-4-21 2376 Contra Costa Moraga Valley. Comment
  RSA300992  Collinsia sparsiflora Mary L. Bowerman 1932-3-6 1101 Contra Costa Sycamore Canyon near mouth; West bank. Comment
  RSA412224  Collinsia sparsiflora H. de Forest 1930-4-6 s.n. Contra Costa [No location information provided.] Comment
  JEPS6336  Collinsia sparsiflora var. collina Mary L. Bowerman 1933-4-9 1836 Contra Costa w fork Donner Canyon Mount Diablo (Mount Diablo); Donner Canyon 243 Comment
  POM203034  Collinsia sparsiflora var. collina J. T. Howell 1934-4-8 11810 Contra Costa 7 miles from Clayton on road to Livermore. Comment
  UC691583  Collinsia sparsiflora var. collina Mary L. Bowerman 1932-3-6 1101 Contra Costa Sycamore Canyon near mouth Sycamore Canyon, Mount Diablo; Mount Diablo Comment
  JEPS18245  Collinsia sparsiflora var. sparsiflora Peter H. Raven with Mason, Stone, Ornduff, Kuijt 1957-4-11 10618 Contra Costa 2.4 mi s Curry Creek Recreation Ground (on rd to Livermore) Comment
  UC2028312  Collinsia tinctoria Barbara Ertter, Susan D'Alcamo 1998-6-12 16164 Contra Costa North Peak Trail from Devil's Elbow on SE side of Mount Diablo summit. Comment
  JEPS75521  Conium maculatum P. F. Yorks 1974-5-19 159 B Contra Costa 1.4 km s of Bear Creek Road (n of Briones Reservoir, on Hampton Road in Hampton Road Natural Preserve); Hampton Road Natural Preserve 180 Comment
  JEPS99954  Conyza bonariensis A. Langston 2003-9-16 AL 89 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC285921  Conyza bonariensis R. E. Frenkel 1963-8-18 261 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  UC2028030  Conyza canadensis Barbara Ertter 1997-9-14 15802 Contra Costa WSW base of Mount Diablo, along creek at fence line between Pine Ridge and lower Wall Point Road from Macedo Ranch. Comment
  UC1005958  Coprosma baueri N. Floy Bracelin 1942-5-10 2071 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS95193  Cordylanthus mollis subsp. mollis Jake Ruygt 1993-9-3 Contra Costa w of Hastings Slough (Concord Naval Weapons Station) Comment
  CAS-BOT-BC26795  Cordylanthus nidularius John Thomas Howell 1942-7-19 17044 Contra Costa NE of Deer Flat, Mt. Diablo Comment
  UC691741  Cordylanthus nidularius J. T. Howell 1942-7-19 17044 Contra Costa NE (?) of Deer Flat, Mt. Diablo, Contra Costa Co. Comment
  UC691507  Cordylanthus pilosus subsp. pilosus Mary L. Bowerman 1936-8-8 3523 Contra Costa Emmons Canyon, W fork Mount Diablo Comment
  UC89470  Coreopsis stillmanii T. S. Brandegee Apr 1889 Contra Costa Antioch Comment
  CDA38583  Cornus sericea D. G. Kelch 2003-8-13 3 .132 Contra Costa Carquinez Strait; Pinole Creek. Comment
  CAS-BOT-BC209591  Cornus sericea Virginia I. Dains; Walter Knight 1986-8-8 5471 Contra Costa Jct Rock S1 & Werner Cut Comment
  UCR263555  Coronopus didymus Barbara Ertter 1990-5-15 8991 Contra Costa San Francisco Bay Region, South El Cerrito, north foot of Albany Hill at end of Yosemite Avenue cul-de-sac 4 Comment
  CDA37420  Cortaderia selloana D. G. Kelch, Mike Perlmutter 2011-9-23 11 .751 Contra Costa Immediately north of Discovery Bay. Comment
  CAS-BOT-BC190027  Cortaderia selloana Wm. Anderson 1959-10-1 s.n. Contra Costa On Montezuma Slough near Suisun. Comment
  UC2028509  Cortaderia selloana Barbara Ertter with Tony Morosco 1998-9-18 16430 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, north quarry area [subsequently developed] Comment
  UCSB26540  Corylus cornuta subsp. californica Keefe, Joseph 1967-3-20 Contra Costa Along Huckleberry Trail, 0.5 mile east of Skyline Boulevard, east of Grizzly Peak Boulevard, east of Berkeley 274 Comment
  JEPS111824  Corylus cornuta var. californica A. G. Murdock 2004-4-30 261 Contra Costa Vaca Canyon 165 Comment
  UCR7819  Corylus cornuta var. californica Wm. Horn Jr. 1964-2-26 640226- 01 Contra Costa San Francisco Bay Region, Flicker Ridge, 1.5 mi SW of Moraga 183 Comment
  UC2028097  Cosmos bipinnatus Barbara Ertter 1996-9-19 15290 Contra Costa Cerrito Creek at base of Albany Hill, just west of San Pablo Avenue. Comment
  UC1620000  Cotoneaster lacteus Barbara Ertter 1997-1-5 15432 Contra Costa Ygnacio Valley Road at Lime Ridge between Walnut Creek and Clayton, south facing roadcut. Comment
  SD241743  Cotula australis Barbara Ertter, Mary Bowerman et al. 1995-5-7 14055 Contra Costa Three-Sorings Trail on northeast side of Mt. Diablo southeast of Clayton, road behind houses traversing north facing slope. Comment
  JEPS111677  Cotula coronopifolia D. G. Kelch 2003-8-13 03 .114 Contra Costa Martinez Marsh 0 Comment
  UC2032849  Cotula coronopifolia Doran, Andrew Scott 2012-3-20 720 Contra Costa Northeast part of Brooks Island, on trail to beach along spit. Comment
  RSA721594  Crassula aquatica Mary L. Bowerman 1975-9-14 s.n. Contra Costa Mount Diablo. Comment
  UC2028185  Crassula aquatica Barbara Ertter 1998-5-3 16059 Contra Costa Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. Comment
  CAS-BOT-BC427670  Crassula connata Peter H. Raven; H. L. Mason; R. Ornduff; et al 1957-4-4 10578 Contra Costa 3.0 miles s. of Byron Comment
  UC2028142  Crassula tillaea Barbara Ertter 1998-4-4 15973 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, Quarry Hill. Comment
  CDA15282  Cressa truxillensis G. F. Hrusa, D. Crowe, R. York 1998-7-17 14720 Contra Costa Sacramento Delta; E end of Dow Chemical property, Pittsburg. Comment
  UC692616  Crocanthemum scoparium var. vulgare Mary L. Bowerman 1932-4-9 1332 Contra Costa from near Rock City to ridge to Wall Point; Mount Diablo Comment
  RSA289534  Croton californicus Edward Lee, Annetta Carter 1935-8-17 1626 Contra Costa Antioch. Comment
  UC1084501  Croton californicus G. Thomas Robbins 1940-5-19 322 Contra Costa e Antioch (sand hills bordering river); San Joaquin River Comment
  UC447211  Croton californicus C. F. Baker 1903-4-25 2825 Contra Costa Antioch Comment
  CDA35288  Croton californicus F. J. Brucato 1962-8-21 Contra Costa Antioch, Wilbur Ave, 1 mile west of Hwy 24. 0 Comment
  CDA32859  Crypsis schoenoides D. G. Kelch 2010-10-5 10 .421 Contra Costa The Delta; Just east of Antioch bridge. Comment
  JEPS108226  Cryptantha decipiens David Gowen 2005-5-6 282 Contra Costa Mt. Diablo State Park. Rocky outcrops on the south side of North Peak. Comment
  JEPS86564  Cryptantha flaccida Roy E. Buck 1988-4-23 902 Contra Costa 9 air km se Walnut Creek (ca 2.0 air km w of Moses Rock Spring, sw-facing slope on n side of North Gate Rd, 0.3 road mi se of park boundary); Mt. Diablo State Park 207 Comment
  SBBG54489  Cryptantha flaccida L. R. Abrams 1921-5-25 8017 Contra Costa Mt Diablo near summit Comment
  UC24677  Cryptantha flaccida F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  UC691633  Cryptantha micromeres Mary L. Bowerman 1933-4-22 1901 Contra Costa w of Cave Point; Mount Diablo, Inner Black Hills Comment
  UC691342  Cryptantha microstachys Mary L. Bowerman 1931-4-4 633 Contra Costa 2 mi (rd) from Mount Diablo w entrance (= North Gate); Mount Diablo Comment
  POM64396  Cryptantha microstachys C. F. Baker 1903-4-28 2810 Contra Costa Mitchell s Canyon, Mt. Diablo. Comment
  RSA720802  Cryptantha microstachys Mary L. Bowerman 1978-5-14 s.n. Contra Costa Mount Diablo. E side of Eagle Peak, old mine wagon trail up Black Canyon. Area of Aug. 1977 burn. Comment
  UC2028057  Cryptantha muricata Barbara Ertter, Tony Morosco 1998-4-12 16017 Contra Costa Mount Olympia on north side of Mount Diablo, around rocks at summit. Comment
  JEPS67634  Cryptantha nevadensis Mary L. Bowerman 1932-3-27 1143 Contra Costa at base of Mitchell Rock Mount Diablo, Mitchell Rock Comment
  UC691339  Cryptantha torreyana Mary L. Bowerman 1930-6-10 299 Contra Costa Mount Diablo Comment
  CDA33318  Cuscuta japonica Niang/Slattengreen 2008-8-2 PDR# 1454025 Contra Costa El Sobrante; Skyview Place (near Richmond city limits?) 0 Comment
  CDA33352  Cuscuta japonica Niang/Slattengreen 2008-8-2 PDR# 1454024 Contra Costa El Sobrante; 5737 Skyview Place (near Richmond city limits?) 0 Comment
  SEINET943390  Cuscuta subinclusa Joseph P. Tracy 1932-1 10790 Contra Costa Franklin Canyon Comment
  UC562483  Cuscuta subinclusa Joseph P. Tracy 1932-9-10 10789 Contra Costa Franklin Canyon 152 Comment
  UC691857  Cuscuta subinclusa Mary L. Bowerman 1933-9-3 2418 Contra Costa s of Meridian-North Peak saddle; Mount Diablo Comment
  UC23280  Cuscuta subinclusa Bolander 1863-1 2436 Contra Costa Moraga Valley Comment
  OBI73070  Cynara cardunculus subsp. flavescens David J. Keil, with Barbara Ertter et al. 2000-6-18 28817 Contra Costa Mount Diablo State Park. North Gate Road. Ca. 0.5 miles south of park boundary 195 Comment
  UC691770  Cynoglossum grande Mary L. Bowerman 1935-3-15 2733 Contra Costa e. fork Arroyo del Cerro (Mt. Diablo, Peach Tree Springs rd.); Mt. Diablo, e. fork Arroyo del Cerro 228 Comment
  JEPS99550  Cynosurus echinatus Mary Bowerman 1976-6-24 Contra Costa Mount Diablo, inner Black Hills just west of meridian and south of crest. Comment
  SEINET4343715 Image available Cynosurus echinatus Unknown 1976-6-24 Contra Costa Mount Diablo. Inner Black Hills just west of meridian and south of crest Comment
  SEINET5546123  Cynosurus echinatus E. A. Bernays 1985-1 s.n. Contra Costa Tilden. Comment
  UCD161870  Cyperus James A. Neilson Jr. 1972-10-22 s.n. Contra Costa Contra Costa County. Lower Pine Creek. (Exact location unknown. Coordinates estimated by label maker.) Comment
  CAS-BOT-BC113834  Cyperus niger John Thomas Howell 1950-7-5 26633 Contra Costa Spring along North Road, Mt. Diablo. Comment
  CAS-BOT-BC113937  Cyperus odoratus Walter Knight; Irja Knight 1980-8-26 3769 Contra Costa Hercules. Comment
  UC1607705  Cystopteris fragilis Barbara Ertter, Lynne Hosley 1993-4-17 11514 Contra Costa ca. 10 air mi n Livermore (on hills in lee of Mt Diablo, along Coyote Trail); , Morgan Territory Comment
  UC62454  Cystopteris fragilis unknown 1891-3-4 Contra Costa Comment
  RSA666380  Cytisus monspessulanus Barbara J. Ertter 1991-5-12 9816 Contra Costa Point Isabel Regional Shoreline in SW corner of El Cerrito, on San Francisco Bay. Comment
  UC1795750  Cytisus scoparius Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14678 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay; grassland/scrub at northeast corner of area. Comment
  RSA0027405  Datura stramonium Barbara Ertter 1999-8-21 16790 Contra Costa Former reservoir upstream from mouth of Mitchell Canyon. Comment
  UC2029145  Datura stramonium Barbara Ertter 1999-8-21 16790 Contra Costa Lower Mitchell Canyon Road on NW base of Mount Diablo. Comment
  JEPS112311  Datura wrightii Andrew G. Murdock 2004-5-28 308 Contra Costa Hercules - Carbon, along Highway 4 Comment
  JEPS111628  Daucus pusillus D. G. Kelch 2005-5-1 05 .187 Contra Costa Crockett - Edwards Canyon, near top of canyon. 150 Comment
  RSA216745  Deinandra bacigalupii Robert F. Hoover 1969-8-29 11564 Contra Costa Raymond Road and Ames Street, Livermore Valley. Comment
  UC2029026  Deinandra corymbosa Barbara Ertter 2002-6-16 17952 Contra Costa Richmond Field Station (UC-Berkeley). Comment
  UCD35140  Deinandra corymbosa Beecher Crampton 1950-6-20 596 Contra Costa Richmond Comment
  CAS-BOT-BC294013  Deinandra kelloggii Alice Eastwood 1927-5-19 14445 Contra Costa Byron Springs Comment
  CAS-BOT-BC294018  Deinandra kelloggii Mrs. Curran 1883-5-1 s.n. Contra Costa Antioch Comment
  UC126849  Deinandra kelloggii Mrs. K. Brandegee 1907-5-5 19 Contra Costa near Antioch Comment
  CAS-BOT-BC294015  Deinandra kelloggii Brandegee No date on label s.n. Contra Costa Antioch Comment
  CAS-BOT-BC291812  Deinandra lobbii Elsie M. Zeile 1921-9-17 s.n. Contra Costa Rodeo Comment
  UC1818999  Delphinium Barbara Ertter, Tom Delendick 1996-5-2 14615 Contra Costa Mount Diablo State Park, Deer Flat Road north of Juniper Camp, at cut through open live oak forest, northwest-facing slope. 853 Comment
  CAS-BOT-BC9613  Delphinium californicum Alice Eastwood 1915-5-30 4465 Contra Costa Mt. Diablo Comment
  CDA933  Delphinium californicum D. G. Kelch 2005-6-14 5 .335 Contra Costa East Bay; San Pablo. North Alvarado Park, south of San Pablo Dam Rd. Comment
  UC72893  Delphinium californicum subsp. interius Milo S. Baker 1904-6-23 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC8749  Delphinium hansenii H. Lewis; C. Epling 1947-5-4 703 Contra Costa Marsh Creek Road, 5.8 mi. east of Curry Creek Park Road Comment
  UC692144  Delphinium hesperium Mary L. Bowerman 1931-5-2 786 Contra Costa foot Eagle Point Ridge; Mount Diablo Comment
  POM225347  Delphinium hesperium J. T. Howell 1931-5-12 6482 Contra Costa N side of Mt Diablo Comment
  RSA721744  Delphinium hesperium Barbara J. Ertter 1995-5-29 14242 Contra Costa S side Mt Diablo, edge of open meadow in flats near head of Curry Creek along road to Sheepherderss Springs from Sloam Road. 427 Comment
  JEPS6231  Delphinium hesperium subsp. hesperium Willis L. Jepson May 23-24 1891 21394 Contra Costa Mt. Diablo Comment
  UC912567  Delphinium hesperium subsp. pallescens H. L. Mason 1928-4-29 4423 Contra Costa s slope of mt Mount Diablo, Sycamore Canyon Comment
  JEPS112062  Delphinium nudicaule A. G. Murdock 2004-4-30 243 Contra Costa Vaca Canyon 165 Comment
  SEINET12099569  Delphinium nudicaule J. G. Lemmon s.n. Contra Costa American Valley and Mt. Diablo Comment
  POM203934  Delphinium patens J. T. Howell 1931-3-10 5758 Contra Costa East side of Mt. Diablo 7 miles from Clayton on Livermore road. Comment
  UC9152  Delphinium patens subsp. patens J. Burtt Davy 1895-4-13 1008 Contra Costa near Lafayette Comment
  CAS-BOT-BC116462  Delphinium patens subsp. patens E. M. Zeile 1910-4-2 s.n. Contra Costa Fish Ranch Comment
  HSC47893  Delphinium recurvatum Carl Epling, G. Miles 1945-3-23 542 Contra Costa 5 miles west of Tracy-Byron road on road to Byron Hot Springs Comment
Read comments
Aug 17 2011
  JEPS65179  Delphinium recurvatum L. R. Heckard 1971-4-15 2488 Contra Costa railroad embankment at intersection of Holey Rd; s of Byron Comment
  JEPS90889  Delphinium recurvatum Dean W. Taylor 1991-5-2 11634 B Contra Costa Byron Hot Springs Road 0.3 mi s of Holey Road (San Joaquin Valley); , Byron Hot Springs Road 39 Comment
  LA207616  Delphinium recurvatum Carl Epling; 1945-3-23 542 Contra Costa 5 mi. W of Hwy. 120 on Byron Hot Springs rd Comment
  JEPS62388  Delphinium variegatum W. L. Jepson 1922-5-23 9658 Contra Costa Mt. Diablo Comment
  LA207638  Delphinium variegatum H. Lewis; Carl Epling 1944-5-6 sn Contra Costa 1 mi. S of Marsh Creek Rd. on the Beck Rd. to Livermore Comment
  UCSB25081  Dendromecon rigida Rieser, D. 1966-4-2 Contra Costa New Bear Creek Road, 2 mi. north of Old Dam Rd., Orinda 304 Comment
  CDA31667  Deschampsia danthonioides D. G. Kelch, A. G. Murdock 2005-3-25 05 .-095 Contra Costa Carquinez Strait Region; Fernandez Ranch. West of Christie Road, south of I-4 (behind golf course) and north of Pinole Peak. Comment
  UC1050948  Diascia barberae N. Floy Bracelin 1942-8-9 2243 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC72731  Dicentra chrysantha Milo S. Baker 1904-6-24 Contra Costa near Mt. Diablo summit; Mt. Diablo Comment
  CDA29039  Dichelostemma capitatum D. G. Kelch 2006-5-7 6 .158 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  CDA39457  Dichelostemma capitatum D. G. Kelch 2007-3-24 7 .092 Contra Costa Carquinez Strait; Ozol; between Port Costa and Martinez, near old brick quarry. Comment
  JEPS75528  Dichelostemma capitatum P. F. Yorks 1976-3-7 116 Contra Costa ca 2 km s Bear Creek Road (on Hampton Road, in Hampton Road Natural Reserve, n of Briones Reservoir); Hampton Road Natural Reserve 200 Comment
  UCD102375  Dichelostemma capitatum Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 900 Comment
  CAS-BOT-BC500087  Dichelostemma capitatum James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  JEPS100059  Dichelostemma congestum G. Smick 2003-5-8 GAS 69 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1795853  Dichondra donelliana Barbara Ertter, Gary Schoolcraft 1996-4-7 14574 Contra Costa Point San Pablo in west Richmond, crest of road to yacht harbor, coastal grassland along ridge, scraped roadbed to tower. Comment
  JEPS121009  Digitaria sanguinalis D. G. Kelch 2006-9-6 06 .469 Contra Costa Elkhorn Creek, E of Crockett Comment
  UC2027848  Digitaria sanguinalis Barbara Ertter with Mary Bowerman 1996-11-1 15400 Contra Costa North base of Mount Diablo, near Donner Canyon trailhead at end of Regency Drive. Comment
  RSA40099  Dirca occidentalis L. S. Rose 1948-3-9 s.n. Contra Costa Head of Wildcat Creek, Berkeley Hills 457 Comment
  CDA31689  Distichlis spicata A. A. Beetle 1941-6-24 1752 Contra Costa Point Richmond on San Francisco Bay 0 Comment
  JEPS102900  Distichlis spicata Barbara Ertter, Chris Thayer 1996-10-25 15369 Contra Costa North Gate Road Mount Diablo 121 Comment
  CDA18042  Dittrichia graveolens R. M. Case 1999-12-29 PDR 031726 Contra Costa Vicinity Concord at Vanacio Reservoir. 0 Comment
  JEPS111737  Dittrichia graveolens D. G. Kelch 2004-12-4 04 .346 Contra Costa Rodeo Shore 2 Comment
  SD175796  Dittrichia graveolens D. G. Kelch 2006-9-25 06 476 Contra Costa Marsh 1.0 km west of Pacheco Slough. 2 Comment
  UCR198215  Dittrichia graveolens Dean Kelch, A. G. Murdock 2005-11-3 05 .489 Contra Costa Carquinez Strait, entrance to Mt. Wanda 37 Comment
  UC2028241  Dittrichia graveolens Barbara Ertter, Tony Morosco 1998-9-18 16423 Contra Costa Lime Ridge Open Space northwest of Mount Diablo. Comment
  UC1039585  Dodecatheon clevelandii subsp. patulum Herbert L. Mason 1925-2-28 1260 Contra Costa 1/2 mi e Rodeo; e of Rodeo Comment
  UC765525  Dodecatheon clevelandii subsp. patulum R. F. Hoover 1938-3-5 2815 Contra Costa mouth of Kirker Creek Canyon Comment
  JEPS112042  Dodecatheon hendersonii A. G. Murdock 2003-2-21 70 Contra Costa Mt. Wanda - Martinez Edge of chaparral, northeastern area of Mt. Wanda property 115 Comment
  SEINET8561944  Dodecatheon hendersonii P. Del Monte 1976-3-28 s.n. Contra Costa Oakhill Lane, 1 mile above junction with Morgan Territory Road. 305 Comment
  UCSB24739  Dodecatheon hendersonii Rieser, R. 1966-4-4 Contra Costa On Tarry Lane, 8 miles from intersection of Sleepy Hollow Lane, Orinda. 152 Comment
  POM203314  Dodecatheon hendersonii subsp. cruciatum J. T. Howell 1931-3-10 5756 Contra Costa East side of Mt. Diablo 7 miles from Clayton on Livermore road. Comment
  UC1050373  Dolichandra unguis-cati N. Floy Bracelin 1942-7-4 1384 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS5033  Downingia insignis Ira L. Wiggins 1930-4-17 4570 Contra Costa 0.25 mi s Byron Comment
  UC1188740  Downingia insignis John H. Weiler 1959-4-11 5954 Contra Costa 3 mi w Byron (on the w side of the road) Comment
  UC1315008  Downingia insignis R. F. Hoover 1967-4-28 10503 Contra Costa Byron Hot Springs Comment
  UC2043172  Downingia insignis Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8116 Contra Costa SE Contra Costa Co., Alkali sink W and adjacent to Clifton Cout Forebay, ca 15 air miles SW of Stockton. Comment
  UC766347  Downingia insignis R. F. Hoover 1941-4-12 4839 Contra Costa 1 mi n Lone Tree Valley Comment
  RSA424714  Downingia insignis Aaron Liston 1987-4-27 670 -1 Contra Costa 3 miles S of Byron. Comment
  UC765585  Downingia ornatissima var. eximia R. F. Hoover 1941-4-12 4841 Contra Costa 2 mi s Antioch Comment
  UCD35141  Downingia pulchella Beecher Crampton 1950-4-22 535 Contra Costa Concord Valley. Comment
  UC1513979  Dryopteris arguta Joseph Andorfer Ewan 1934-3-10 8639 Contra Costa 1 mi below Orinda rd Wildcat Canyon Comment
  UC1948932  Dryopteris arguta William J. Ferlatte, L. Maynard Moe 1970-4-27 1245 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC1015449  Dudleya caespitosa Reid Moran Contra Costa from the garden of Mrs. E. C. Dempster Orinda Comment
  UC830948  Dudleya cymosa subsp. paniculata Alice Eastwood 1915-5-30 Contra Costa near type locality; Mount Diablo Comment
  UC1606408  Dudleya farinosa Barbara Ertter 1992-7-25 11261 Contra Costa s end Point Richmond (near Brickyard Landing, above rr tracks) Comment
  POM319552  Echinochloa crus-galli Patricia Wilder 1961-8-29 1098 a Contra Costa Walnut Creek, near Calif. Hwy 24 west side of city; Coast Mt. Range 42 Comment
  CAS-BOT-BC197106  Echinochloa crus-galli R. E. Frenkel 1963-8-23 274 Contra Costa On the lot in front of Market Plaza Center on Highway 21, Alamo 79 Comment
  SEINET3407322 Image available Echinocystis fabacea var. agrestis Lewis S. Rose 1933-5-13 33165 Contra Costa Marsh creek, Contra Costa County Comment
  UC2027936  Eclipta prostrata Barbara Ertter 1996-9-19 15298 Contra Costa Antioch Marina, edge of Dow Marsh lands. Comment
  UC1606287  Egeria densa Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10864 Contra Costa just w Antioch marina (accessed from marina); Dow Wetlands Preserve Comment
  UC1618316  Egeria densa Barbara Ertter, CNPS 1990-9-16 9648 Contra Costa Bethel Island ne of Brentwood (e end of Gateway Road at w edge of Franks Tract State Recreation Area, ne Contra Costa County); Bethel Island, Franks Tract State Recreation Area Comment
  SBBG21399  Ehrendorferia chrysantha V. Haraden 1941-7-18 14 Contra Costa near Nortonville 121 Comment
  CAS-BOT-BC197293  Ehrharta erecta Catherine Best 1990-6-3 s.n. Contra Costa On Ralston Ave. in the hills above Richmond Comment
  SEINET3892203  Eichhornia crassipes Barbara Ertter 1990-9-16 9642 Contra Costa Junction of Cypress Road & Jersey Island Road E of Oakley, covering ditch between road & field.; 0 Comment
  UC1606335  Elatine brachysperma Barbara Ertter, Brad Olson 1991-9-28 10829 a Contra Costa betw Orinda and El Sobrante San Pablo Reservior Comment
  RSA721590  Elatine brachysperma Mary L. Bowerman 1975-9-14 s.n. Contra Costa Mount Diablo. Comment
  UC1812  Eleocharis macrostachya J. Burtt Davy 1897-9-4 4077 Contra Costa Stege Comment
  UC691974  Eleocharis macrostachya Mary L. Bowerman 1935-6-21 3151 Contra Costa S of Turtle Rock (tiny pool above main pond); Mount Diablo Comment
  CAS-BOT-BC112797  Eleocharis macrostachya Walter Knight 1978-8-19 3233 Contra Costa Upper Sindecich Lagoon. Briones Regional Park. 335 Comment
  RSA0027647  Eleocharis palustris Barbara Ertter 1998-5-3 16062 Contra Costa area of Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. Below road SE of ponds. 274 Comment
  SBBG122783  Elodea canadensis B. Ertter, B. Olson 1991-9-28 10841 Contra Costa S end of San Pablo Reservoir, between Orinda and El Sobrante 91 Comment
  UC1950090  Elodea canadensis Barbara Ertter with Brad Olson 1991-9-28 10841 Contra Costa at S end of reservoir; San Pablo Reservoir between Orinda and El Sobrante Comment
  UC691172  Elymus X hansenii Mary L. Bowerman 1935-7-22 3184 Contra Costa Mountain Springs Canyon Mount Diablo (about 100 ft from bottom) 670 Comment
  CAS-BOT-BC203828  Elymus X hansenii Mary L. Bowerman 1935-6-1 3109 Contra Costa Mount Diablo. Largest ridge between Ransom Point ridge and Mitchell-Pine divide 1066 Comment
  SD58360  Elymus condensatus W. L. Jepson 1937-7-2 18445 Contra Costa in a swale one-half mile west of Crockett Comment
  CAS-BOT-BC227138  Elymus elymoides Roxana S. Ferris 1924-6-14 4090 Contra Costa Summit of Mt Diablo Comment
  SEINET252196  Elymus glaucus David Amme 1988-8-16 Contra Costa Kensington Comment
  UC691273  Elymus glaucus Mary L. Bowerman 1933-8-26 2414 Contra Costa Lower Canyon Spring Mount Diablo 1005 Comment
  UC766736  Elymus glaucus R. F. Hoover 1941-5-19 5105 Contra Costa Claremont Rd Berkeley Hills (e side of hills) Comment
  UC2028479  Elymus glaucus Barbara Ertter with Richard K. Brummitt 1998-5-6 16101 Contra Costa Point San Pablo west of Richmond, crest of road to yacht harbor Comment
  CDA31735  Elymus multisetus D. G. Kelch 2002-5-24 2 .018 Contra Costa Carquinez Strait; Crockett. On hill S of San Pablo Ave ~0.4 miles W of Carquinez Bridge. Comment
  UCD36928  Elymus multisetus Beecher Crampton 1956-5-14 3425 Contra Costa 4 miles west of Martinez, road above Port Costa Brick Works. Comment
  UCD62491  Elymus multisetus P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UC2028503  Elymus multisetus Barbara Ertter with Mary Bowerman, Lisa Schultheis 1998-8-21 16401 Contra Costa Curry Point on south side of Mount Diablo Comment
  JEPS99518  Elymus trachycaulus Mary Bowerman 1977-7-25 Contra Costa Mount Diablo, North Peak. Comment
  UC692424  Elymus trachycaulus Mary L. Bowerman 1935-5-18 3030 Contra Costa n summit parkijng area; Mount Diablo 1066 Comment
  UC756651  Elymus trachycaulus G. L. Stebbins Jr. 1946-6-9 3652 Contra Costa 2 mi e El Cerrito (near Mira Vista Country Club) Comment
  CAS-BOT-BC204317  Elymus trachycaulus subsp. trachycaulus Mary L. Bowerman 1935-5-18 3030 Contra Costa Mount Diablo. Meridian Peak north of the summit parking area 1066 Comment
  UCD150893  Epilobium brachycarpum James A. Neilson Jr.; Samuel A Bamberg 1975-10-22 3497 Contra Costa Walnut Creek drainage at State Highway 4. Elevation estimated using Google Earth by label maker. 1 Comment
  UCR115054  Epilobium campestre G. Fred Hrusa, D. Crowe, R. York 1998-7-17 14709 Contra Costa Sacramento-San Joaquin River Delta, E end of Dow Chemical property. 12 Comment
  UC101787  Epilobium campestre Katharine Brandegee 1907-6-16 Contra Costa near S. P. Railway Station; Antioch Comment
  UC634752  Epilobium canum subsp. canum Herbert L. Mason 1923-11-12 852 Contra Costa lower slopes Mt. Diablo Comment
  CDA38070  Epilobium ciliatum D. G. Kelch 2003-8-13 3 .142 Contra Costa Carquinez Strait; Pinole Creek. Comment
  UC2027841  Epilobium ciliatum Barbara Ertter 2000-9-30 17535 Contra Costa West side Mount Diablo, pond on China Wall Road ca 1/2 mile NW of Macedo Ranch. Comment
  UC1584862  Epilobium ciliatum subsp. ciliatum Jerry Powell 1987-11-1 1509 Contra Costa Point Molate Richmond Comment
  UC84478  Epilobium cleistogamum Katharine Curran Jun 1884 Contra Costa Antioch Comment
Read comments
Mar 27 2016
  JEPS99501  Epilobium minutum Mary L. Bowerman 1978-5-14 Contra Costa Mount Diablo. The old wagon rd. mines trail on E side of Eagle Peak. Comment
  UC1005902  Epiphyllum N. Floy Bracelin 1943-5-16 2513 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  UC1050832  Epiphyllum crenatum N. Floy Bracelin 1944-7-2 1338 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  CAS-BOT-BC57259  Equisetum laevigatum Mary L. Bowerman 1931-5-16 864 Contra Costa Lower Silver Spring Comment
  CAS-BOT-BC57260  Equisetum laevigatum Mary L. Bowerman 1938-6-14 3685 Contra Costa Lower Silver Spring 853 Comment
  JEPS111942  Equisetum telmateia subsp. braunii D. G. Kelch 2004-7-9 04 .292B Contra Costa Crockett: Edwards Creek 5 Comment
  UC2029182  Equisetum telmateia subsp. braunii Barbara Ertter 2000-7-16 17405 Contra Costa Pine Creek on WNW base of Mount Diablo, willow patch above Pine Pond. Comment
  SJSU10471  Eragrostis curvula R. V. Scott 1972-3-27 Contra Costa 5 mi NW of San Ramon Comment
  SEINET11268152  Eragrostis mexicana subsp. virescens Barbara Ertter 1997-8-24 15777 Contra Costa Mount Diablo, Summit Road just above Junction Station.; 0 671 Comment
  JEPS111946  Eremocarpus setiger A. G. Murdock 2004-5-28 306 -A Contra Costa Luzon 60 Comment
  JEPS116791  Eriastrum abramsii David Gowen 2006-6-14 609 Contra Costa Morgan Territory Regional Park; ; ; At the NW end of Eagle Trail. Comment
  CAS-BOT-BC514610  Eriastrum pluriflorum subsp. pluriflorum T. S. Brandegee 1883-6-1 s.n. Contra Costa Antioch Comment
  UC1118629  Ericameria arborescens R. W. Lundh 1932-8-29 153 Contra Costa 2/3 mi n of Eagle Point; Mt. Diablo Quadrangle 457 Comment
  CAS-BOT-BC287525  Ericameria linearifolia Kellogg No date on label s.n. Contra Costa Antioch Comment
  CAS-BOT-BC287528  Ericameria linearifolia H. E. McMinn 1922-6-2 96 Contra Costa From near summit of Mt Diablo Comment
  JEPS31295  Ericameria linearifolia Elsa Kraeger 1926-3-7 Contra Costa w side Mt. Diablo Comment
  JEPS31300  Ericameria linearifolia W. L. Jepson 1921-5-22 9203 Contra Costa summit Mount Diablo 1127 Comment
  JEPS31312  Ericameria linearifolia W. L. Jepson 1922-5-23 9719 Contra Costa summit Mt. Diablo Comment
  POM289061  Ericameria linearifolia Lyman Benson 1935-3-16 6267 Contra Costa Mt. Diablo, Watershed: Walnut Creek; Mountain Range: Mt. Diablo. 915 Comment
  UC1614256  Ericameria linearifolia Charles M. Belshaw 1935-6-10 697 Contra Costa Morgan Territory Rd. e. side of Mt. Diablo Comment
  UC36554  Ericameria linearifolia H. N. Bolander 1866-4-1 6141 Contra Costa Mount Diablo Comment
  UC36557  Ericameria linearifolia F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  UC36565  Ericameria linearifolia F. P. McLean 1875-3-1 Contra Costa Mt. Diablo Comment
  UC672254  Ericameria linearifolia H. L. Mason 1926-3-7 2707 Contra Costa near summit Mount Diablo Comment
  UC482974  Erigeron foliosus var. franciscensis Mrs. G. Earle Kelly 1932-7-20 Contra Costa after junction on mountain road Mount Diablo Comment
  SBBG44960  Erigeron petrophilus J. A. Ewan 1936-7-5 9735 Contra Costa Wildcat Crk Comment
  UC723893  Erigeron petrophilus var. petrophilus Joseph Andorfer Ewan 1936-8-5 9735 Contra Costa Wildcat Creek Comment
Read comments
Jul 1 2007
  UC691862  Erigeron philadelphicus var. philadelphicus Mary L. Bowerman 1933-5-18 2118 Contra Costa Blackberry Spring Mount Diablo, Blackberry Spring Comment
  JEPS108352  Erigeron philadelphicus var. philadelphicus David Gowen 2005-3-31 220 A Contra Costa Valley east of Sibley Regional Preserve boundary. Growing along stream. Comment
  UC1613946  Eriodictyon californicum Charles M. Belshaw 1935-6-24 1027 Contra Costa Sobrante Hills Comment
  RSA401487B  Eriodictyon californicum H. de Forest 1930-4-6 s.n. Contra Costa SE of Mortoville, Small coal mine ravine. Comment
  POM300577  Eriogonum Mary L. Bowerman 1932-11-11 1639 Contra Costa Little below Moses Rock Spring: dry grassy ridge, leading up from Buckle Point (on west road). Comment
  CAS-BOT-BC248089  Eriogonum angulosum Rimo Bacigalupi; G. T. Robbins 1955-5-4 4986 Contra Costa Along Santa Fe railroad right-of-way, paralleling the Orwood road on the Orwood Tract, close to its crossing of Indian Slough, San Joaquin River delta region 6 Comment
  UC1032304  Eriogonum gracile G. T. Nordstrom 1937-10-28 1409 Contra Costa 1.6 mi nne Somersville; Mt. Diablo Quadrangle Comment
  UC1735889  Eriogonum gracile var. gracile Dean W. Taylor 1992-4-16 12388 B Contra Costa S of Byron Hot Springs, in swale draining on E margin of NE1/4 SE1/4 Section 34S of Byron Hot Springs, in swale draining on E margin of NE1/4 SE1/4 Section 34 45 Comment
  JEPS116889  Eriogonum inerme David Gowen 2007-6-10 761 Contra Costa Mt. Diablo State Park. Gravel opening in chaparral near antenna area north of summit parking lot. Comment
  UC692159  Eriogonum nudum var. auriculatum Annetta Carter 1940-6-22 1600 Contra Costa Lime Ridge, n edge of s chaparral patch Mount Diablo 243 Comment
  UC692199  Eriogonum nudum var. auriculatum Mary L. Bowerman 1930-6-22 368 Contra Costa Mitchell Canyon trail Mount Diablo 457 Comment
  RSA0027715  Eriogonum nudum var. auriculatum Barbara J. Ertter, Rich Rabeler, Tony Morosco 1997-6-10 15662 Contra Costa Point Richmond, crest of road. Comment
  SEINET3025700 Image available Eriogonum nudum var. psychicola Barbara J. Ertter 1997-8-18 15766 Contra Costa Antioch Dunes. Antioch Dunes (USFWS National Wildlife Refuge) on San Joaquin River east of Antioch, southwest corner of refuge north of railroad tracks in former vinyard. Comment
  UC692195  Eriogonum nudum var. pubiflorum Mary L. Bowerman 1932-9-17 1586 Contra Costa Donner Canoyn, w fork toward mouth Mount Diablo Comment
  CAS-BOT-BC253093  Eriogonum roseum R. F. Hoover 1940-11-30 4699 Contra Costa 2 mi. south of Antioch Comment
  JEPS102915  Eriogonum roseum Barbara Ertter with Tony Morosco 1998-10-18 16436 Contra Costa NE corner of Lime Ridge recreation Area Mount Diablo 182 Comment
  SEINET3836874 Image available Eriogonum roseum W. L. Jepson 1895-9-14 14779 Contra Costa Walnut Creek Comment
  CAS-BOT-BC267443  Eriogonum truncatum Mary L. Bowerman 1933-5-25 2198 Contra Costa Mount Diablo. Alamo Canyon: above Wilsons' barn Comment
  CAS-BOT-BC267445  Eriogonum truncatum M. K. C. 1886-5-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC267448  Eriogonum truncatum C. F. B. 1903-4-28 2833 Contra Costa Marsh Creek, Mt. Diablo Comment
  UC526210  Eriogonum truncatum John Thomas Howell 1934-4-8 11816 Contra Costa 10 mi on Marsh Creek Road Clayton Comment
  CAS-BOT-BC267870  Eriogonum umbellatum var. bahiiforme H. E. McMinn No date on label. 94 Contra Costa Near summit of Mt. Diablo Comment
  JEPS108318  Eriogonum umbellatum var. bahiiforme David Gowen 2005-5-29 399 Contra Costa West of Morgan Territory Rd. and the main entrance to Morgan Territory Regional Preserve. Rocky area west of summit of hill 2581 (Tassajara Pk.?). Comment
  POM165074  Eriogonum umbellatum var. bahiiforme A. D. E. Elmer 1903-07 s.n. Contra Costa Mount Diablo Comment
  UC691562  Eriogonum umbellatum var. bahiiforme Mary L. Bowerman 1930-6-14 328 Contra Costa summit Mount Diablo Mount Diablo Comment
  CAS-BOT-BC298505  Eriophyllum confertiflorum Mary L. Bowerman 1933-6-3 2224 Contra Costa 2 miles by road from North Gate Comment
  CAS-BOT-BC300924  Eriophyllum jepsonii Mary L. Bowerman 1935-5-30 3087 Contra Costa Mount Diablo. Eagle Point ridge 304 Comment
  CDA10029  Eriophyllum jepsonii D. G. Kelch 2007-4-28 7 .203 Contra Costa Mitchell Canyon. Mt Diablo. Comment
  SEINET10761151  Eriophyllum jepsonii Barbara J. Ertter, Holly Forbes 1997-4-20 Ertter 15562 Contra Costa North base of Mount Diablo, Eagle Peak Trail on NE side of Eagle Ridge below Twin Peaks, mixed chaparral-brush with Ptelea et al. Comment
  JEPS34598  Eriophyllum lanatum var. achilleoides W. L. Jepson 1918-6-3 7577 Contra Costa Mt. Diablo Comment
  UC507132  Eriophyllum lanatum var. achilleoides Lincoln Constance 1933-6-25 E 100 Contra Costa north slope near summit Mount Diablo 1097 Comment
  CAS-BOT-BC300982  Eriophyllum lanatum var. achilleoides Lincoln Constance; Helen Sharsmith; Carl Sharsmith 1933-4-30 E 17 Contra Costa Black Hills, Mount Diablo Comment
  HSC8469  Erodium botrys Greg Bos 1963-3-15 40 Contra Costa Albany Hill, Albany 9 Comment
  UC202739  Erodium macrophyllum Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  UC2032835  Erodium moschatum Doran, Andrew Scott 2012-3-20 705 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  UC1487296  Eryngium aristulatum var. aristulatum Yusuf Sheikh 1975-7-8 600 Contra Costa on State Hwy. 4 0.7 mi. w. of junction w/ Railroad Ave. Comment
  CDA29692  Eryngium armatum D. G. Kelch, D. A. Weinstein 2009-7-15 9 .494 Contra Costa Carquinez Strait; Point Pinole. Comment
  UC2062628  Eryngium armatum Barbara Ertter 2002-5-16 17864 Contra Costa Richmond Field Station (UC-Berkeley). Comment
  UC1606293  Eryngium articulatum Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10710 Contra Costa n. Pittsburg (Browns Isl., near confluence of Sacramento & San Joaquin rivers, opposite Pittsburg Marina, at water's edge (Botany Cove)); Browns Isl. Comment
  UC691871  Eryngium castrense Mary L. Bowerman 1935-6-28 3174 Contra Costa s. Meridian Peak summit (300 yds. e. of meridian fence line); Mt. Diablo 487 Comment
  UC692322  Eryngium castrense Mary L. Bowerman 1935-6-28 3170 Contra Costa Mt. Diablo, Chase Pond Comment
  UC1729582  Eryngium racemosum Leslie Zander 1998-10-9 Contra Costa near Discovery Bay West (just s of eastern terminus of Point of Timber Road and w of Kellogg Creek) Comment
  JEPS97706  Eryngium vaseyi Annetta M. Carter, Tom Morley, Malcolm Nobs 1951-3-25 3006 Contra Costa 3.3 mi. S of Byron. Comment
  UC1190972  Eryngium vaseyi Lincoln Constance, Reino Alava and Rimo Bacigalupi 1958-6-6 3661 Contra Costa 3 mi. s.e. Byron; San Joaquin Valley 10 Comment
  UC1190974  Eryngium vaseyi Lincoln Constance, Reino Alava and Rimo Bacigalupi 1958-6-6 3661 Contra Costa 3 mi. s.e. Byron; San Joaquin Valley 10 Comment
  UC1745587  Eryngium vaseyi Annetta M. Carter 1951-6-9 3061 Contra Costa 3 mi. S of Byron. Comment
  CAS-BOT-BC40770  Erysimum capitatum Volney Rattan 1879-1-1 s.n. Contra Costa Antioch. Comment
  CAS-BOT-BC40771  Erysimum capitatum A. A. Heller 1908-4-16 8898 Contra Costa Eat of Antioch. 22 Comment
  NY32657  Erysimum capitatum subsp. angustatum A. A. Heller 1908-4-16 8898 Contra Costa Sand hills east of Antioch. 22.9 Comment
  POM224444  Erysimum capitatum var. angustatum Alice Eastwood, J. T. Howell 1936-4-19 s.n. Contra Costa Antioch Comment
  RSA39907  Erysimum capitatum var. angustatum P. A. Munz 1947-10-8 12205 Contra Costa Antioch 8 Comment
  UC10536  Erysimum capitatum var. capitatum J. Burtt Davy and E. L. Greene 1895-4-7 996 Contra Costa Antioch Comment
  UC10565  Erysimum capitatum var. capitatum J. Burtt Davy 1895-4-7 996 Contra Costa foothills Antioch Comment
  JEPS75891  Erysimum capitatum var. capitatum Dan Cheatham 1977-4-2 Contra Costa easternmost Pacific Gas and Electric tower Antioch Dunes Comment
  RSA298536  Erysimum capitatum var. capitatum Robert A. Norris, John L. Inase 1981-5-10 4158 Contra Costa Near North Gate Road, Mt Diablo. 930 Comment
  SEINET5342636  Erysimum capitatum var. capitatum C. M. Fryer 1948-4-11 4 Contra Costa On Stipa hillside in shade. Mt. Diablo. 427 Comment
  UC2046330  Erythranthe guttata Barbara Ertter with Alan Prather 2003-6-7 18201 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, creek alongside west end Stone Corral Trail, south of Highland Ridge Trail junction. Comment
  CAS-BOT-BC402980  Eschscholzia californica Mary L. Bowerman 1933-5-3 1975 Contra Costa Mount Diablo. Due south of Meridian Peak summit 731 Comment
  CAS-BOT-BC402991  Eschscholzia californica Philip A. Munz 1947-10-8 12190 Contra Costa Antioch 12 Comment
  UC2012983  Eschscholzia californica Barbara Ertter with Tony Morosco 1996-7-27 15039 Contra Costa Mount Diablo State Park, Cardinet Oaks Road at crossing of Donner Creek. Comment
  CAS-BOT-BC91578  Eschscholzia rhombipetala Brandegee 1889-4-1 s.n. Contra Costa Antioch. Comment
  UC1789217  Eucalyptus Barbara Ertter 2004-9-17 18499 Contra Costa north extension of Lime Ridge open Space in Concord, edge of parking area on N side of Treat Boulevard Comment
  JEPS100064  Eucalyptus globulus A. Langston 2003-7-24 AL 72 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2061495  Eucalyptus sideroxylon Dean G. Kelch 2016-5-27 16 .140 Contra Costa Miller-Knox Hill. Comment
  UC2028162  Eucalyptus sideroxylon Barbara Ertter with Laura Fujii 1999-3-7 16483 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, near Alvarado Staging area at NW end of park, along hiking road. Comment
  JEPS99575  Eucrypta chrysanthemifolia Mary L. Bowerman 1995-7-2 Contra Costa Mount Diablo, Back Canyon. Comment
  UCSB5236  Eucrypta chrysanthemifolia Kamb, Peter; Chisaki, Francia 1950-3-18 Contra Costa Black Hills, S of Mt. Diablo, on south road to Mt. Diablo from Danville 365 Comment
  UC24009  Eucrypta chrysanthemifolia var. chrysanthemifolia Jos. Burtt Davy 1901-4-21 6923 Contra Costa Wildcat Canyon Comment
  UC2027934  Euphorbia maculata Barbara Ertter with Chris Thayer 1996-10-25 15382 Contra Costa West side of Mount Diablo, North Gate Road 3 road miles below Junction near Mineral Spring. Comment
  UCD142410  Euphorbia oblongata Thomas C. Fuller 1958-7-30 s.n. Contra Costa State Highway 4; 3 miles west of Martinez. Comment
  CAS-BOT-BC202390  Euphorbia ocellata Mary L. Bowerman 1931-8-29 1033 Contra Costa Mount Diablo. North Road 487 Comment
  UC2028025  Euphorbia ocellata subsp. ocellata Barbara Ertter 1997-9-14 15808 Contra Costa West side of Mount Diablo, ponds along Barbeque Terrace Road in upper Pine Canyon. Comment
  CDA5289  Euthamia occidentalis D. G. Kelch 2004-7-9 4 .309 Contra Costa Carquinez Strait Region; Pacheco Marsh. Pacheco Hill Marsh west of Pacheco Slough. Comment
  CAS-BOT-BC458288  Euthamia occidentalis Walter Knight; Irja Knight 1978-8-14 3139 Contra Costa Browns Island Comment
  UC2028589  Festuca arundinacea Barbara Ertter with Mary Bowerman 1996-11-1 15399 Contra Costa North base of Mount Diablo, near Donner Canyon trailhead at end of Regency Drive Comment
  UC2028473  Festuca idahoensis Barbara Ertter with Richard K. Brummitt 1998-5-6 16099 Contra Costa Western Drive on Point San Pablo/Point Molate west of Richmond, base of roadcut south of Naval Fuel Depot Comment
  UC2028144  Festuca microstachys Barbara Ertter 1998-4-4 15971 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, Fossil Hill. Comment
  UC2032820  Festuca myuros Doran, Andrew Scott 2012-3-20 690 Contra Costa North end of Brooks Island along ridge overlooking artificial spit, southwest of caretakers residence. Comment
  SEINET257715 Image available Festuca rubra M. Barkworth, D Amme 1989-6-15 5168 Contra Costa Bluffs back of beach just N of Castro Point Comment
  UC1795647  Festuca rubra Barbara Ertter, Brad Olson 1994-5-7 12752 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  CDA5267  Filago californica D. G. Kelch, A. G. Murdock 2005-5-13 5 .278 Contra Costa Carquinez Strait Region; Martinez - West: Ozol Rock and Scenic Drive. Comment
  CDA133  Forestiera pubescens D. G. Kelch, D. A. Weinstein 2007-10-14 7 .635 Contra Costa Carquinez Strait; Martinez. Rankin Park. Comment
  UC691117  Fragaria vesca Mary L. Bowerman 1931-3-29 623 Contra Costa n-face East Cave Point Ridge; Mount Diablo Comment
  CAS-BOT-BC62921  Frangula californica subsp. tomentella John Thomas Howell 1930-9-28 5490 Contra Costa Marsh Creek Rd., e. of Clayton. Comment
  CAS-BOT-BC223861  Frankenia salina Walter Knight; Irja Knight 1968-8-14 2418 Contra Costa On Contra Loma Drive, north side of road, Contra Loma Regional Park, near Antioch Comment
  JEPS25153  Frankenia salina G. Thomas Robbins with John Weiler 1959-5-23 4023 Contra Costa nw extension Brooks Island (on breakwater (partly natural, partly man-made)); San Francisco Bay, Richmond Comment
  RSA518721  Frankenia salina Barbara Ertter, E. Neese 1988-10-15 7977 Contra Costa West of I-580 in El Cerrito, west side along Rydin Road north of Central Avenue. Comment
  CDA36612  Frankenia salina T. C. Fuller 1965-11-24 14322 Contra Costa South side of Byron Hot Springs Road, 0.6 mile southwest of Byron-Tracy Highway, ca. 1 mile southwest of Byron. 0 Comment
  CAS-BOT-BC223393  Fraxinus dipetala Mary L. Bowerman 1935-6-1 3103 Contra Costa Mount Diablo. First small ridge east of Mitchell-Pine divide 1005 Comment
  CDA37274  Fraxinus velutina D. G. Kelch 2011-3-31 11 .077 Contra Costa Carquinez Region; Richmond; Hilltop Lake Park. Comment
  CAS-BOT-BC136072  Fritillaria affinis Dean William Taylor 1971-3-28 971 Contra Costa Along Morgan Territory Road 304 Comment
  CDA28719  Fritillaria affinis G. D. Barbe, Dick Ramsey 1962-4-19 667 Contra Costa Morgan Territory Road east side of Mount Diablo, 8.5 miles S/ Clayton. 0 Comment
  UCR160111  Fumaria capreolata M. I. Wibawa 2003-3-1 331 Contra Costa San Francisco Bay Region, along sidewalk on corner of Junction Ave. and Hagen Blvd., El Cerrito 44 Comment
  JEPS124455  Galium andrewsii subsp. gatense Daniel Slakey with CNPS Volunteers 2015-6-13 130 Contra Costa Mt. Diablo State Park, east side of Burma Road. Comment
  UC28155  Galium andrewsii subsp. gatense F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  CDA42125  Galium aparine D. G. Kelch 2005-5-5 5 .211 Contra Costa Carquinez Strait Region; Point Pinole - Giant Marsh. Giant Salt Marsh. Comment
  JEPS111526  Galium aparine D. G. Kelch 2005-5-5 05 .211 Contra Costa Point Pinole - Giant Marsh Giant Salt Marsh 3 Comment
  JEPS112102  Galium aparine A. G. Murdock 2004-3-19 223 Contra Costa Luzon Sycamore Ave. just east of Rodeo/Hercules where train crosses Highway 4 (Luzon) 60 Comment
  JEPS112106  Galium aparine D. G. Kelch 2003-4-3 03 .352 Contra Costa Cummings Skyway South of Cummings Skyway and Crockett Blvd 134 Comment
  UC691540  Galium aparine Mary L. Bowerman 1935-5-16 2985 Contra Costa Russelman Park Mount Diablo (flat at end of road) 381 Comment
  UC1614104  Galium californicum Charles M. Belshaw 1935-6-24 786 Contra Costa Bald Peak ca. 1/2 mi. e. Grizzly Peak; Bald Peak Comment
  UCR263548  Galium californicum subsp. californicum Barbara Ertter, Susan D'Alcamo 1998-6-12 16202 Contra Costa San Francisco Bay Region, along Curry Canyon Road on south side of Mount Diablo, halfway between Knobcone Point Road and Sheepherder Springs Trail Comment
  JEPS23262  Galium divaricatum G. Thomas Robbins 1959-5-23 4031 Contra Costa hillslope about one-half mi e Point San Pablo (overlooking San Pablo Bay); Richmond 7 Comment
  UC2027989  Galium murale Barbara Ertter 1998-5-3 16031 Contra Costa Pine Ridge summit of Wall Point Road at southwest base of Mount Diablo. Comment
  RSA0029676  Galium parisiense Barbara Ertter, Susan D'Alcamo 1998-6-12 16168 Contra Costa North Peak Trail from Devil's Elbow on SE side of Mount Diablo summit, steep rocky S-facing bowl. 1037 Comment
  UC579540  Galium tricornutum C. M. Belshaw 1936-5-13 2124 Contra Costa s Horse Valley (ne of Mt. Diablo); Mt. Diablo Quadrangle 121 Comment
  CAS-BOT-BC304345  Gamochaeta pensylvanica Gordon H. True 1975-6-4 7869 Contra Costa Tilden Regional Park Botanic Garden, Tilden Regional Park, Wildcat Canyon, Berkeley Comment
  CAS-BOT-BC304348  Gamochaeta pensylvanica Walter & Irja Knight 1967-6-12 s.n. Contra Costa Charles Lee Tilden Regional Park. In the botanical garden Comment
  UC672198  Gamochaeta ustulata H. L. Mason 1928-4-12 4302 Contra Costa Richmond waterfront Comment
  CHSC22852  Garrya elliptica Robert A. Schlising; Et al 1962-2-21 2080 Contra Costa Coast Ranges. Berkeley-Oakland Hills of westernmost part of county. Comment
  CAS-BOT-BC200624  Garrya elliptica H. G. Bloomer 1863-2-11 1564 Contra Costa Hills near Oakland Comment
  UC1795673  Garrya flavescens Barbara Ertter, Holly Forbes 1996-2-11 14549 Contra Costa North side Mount Diablo; Murchio Gap on Median Ridge Road, chaparral on serpentine-derived clay; regrowth after burn of several years previous 731 Comment
Read comments
Aug 17 2011
  UC692519  Garrya flavescens Mary L. Bowerman 1931-4-25 779 Contra Costa Meridian Peak summit; Mount Diablo Comment
  UC692520  Garrya flavescens Mary L. Bowerman 1932-9-3 1539 Contra Costa Mount Diablo Summit; Mount Diablo Comment
  POM203166  Garrya fremontii L. S. Rose 1934-2-28 34041 Contra Costa Summit of Mt. Diablo. Comment
  CAS-BOT-BC282607  Gastridium phleoides Virginia E. Long 1933-6-14 224 a Contra Costa Curry Cave Trail, Mt. Diablo 457 Comment
  UCD66551  Gastridium phleoides Beecher Crampton 1956-5-14 3380 Contra Costa Head of Horse Valley, 5 miles S of Antioch. Comment
  JEPS100016  Gastridium ventricosum G. Smick 2003-4-29 GAS 153 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS111082  Gastridium ventricosum Lee Echols 2003-6-15 s.n. Contra Costa S. of Lark Drive in E portion of grassland W of EPA building within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond 15 Comment
  UC691264  Gastridium ventricosum Mary L. Bowerman 1932-11-19 1664 Contra Costa Alder Spring (Mountain Springs Canyon--In 1936 beneath fire trail e from Pioneer Camp) Mount Diablo; , Alder Spring Comment
  JEPS87954  Genista monspessulana Barbara Ertter 1991-5-12 9816 Contra Costa sw corner El Cerrito (Point Isabel Regional Shoreline, on San Francisco Bay); San Francisco Bay Comment
  UC1607581  Genista monspessulana Barbara Ertter 1991-5-12 9816 Contra Costa sw corner El Cerrito (Point Isabel Regional Shoreline, on San Francisco Bay); San Francisco Bay Comment
  UCR265172  Genista monspessulana Barbara Ertter 1991-5-12 9816 Contra Costa Central Coast, Point Isabel Regional Shoreline in southwest corner of El Cerrito, on San Francisco Bay; along old railroad right-of-way between bay and Salicornia marsh. 4 Comment
  HSC8643  Geranium carolinianum Greg Bos 1963-3-9 31 Contra Costa Point Isabel, Richmond 3 Comment
  CHSC24900  Geranium dissectum T. S. Byler 1976-4-17 14 Contra Costa Ca 200 yds n of Lafayette Reservoir, ca 50 yds e of entrance road. 152 Comment
  UCD103395  Geranium dissectum Terri Williamson 1990-4-10 2 Contra Costa 212 Poshard St. Pleasant Hill. 12 Comment
  CDA29060  Geranium molle D. G. Kelch 2006-5-7 6 .154 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  UC2029180  Geranium purpureum Barbara Ertter with California Botanical Society field trip 2013-4-12 21312 Contra Costa Mount Diablo State Park southeast of Walnut Creek, along east fork Sycamore Creek, roadside of Sycamore Creek road. Comment
  RSA0029580  Geranium rotundifolium Barbara Ertter 1996-6-4 14684 Contra Costa Tilden Regional Park in hills east of Berkeley, restoration site northeast of junction of Grizzly Peak Boulevard and Golf Course drive. Comment
  RSA34736  Gilia achilleifolia R. C. Rollins 1946-3-25 3045 Contra Costa Sacramento Northern Embarkment, Moraga Canyon, 0.8 miles east of railway tunnel Comment
  UC1301136  Gilia achilleifolia subsp. achilleifolia Helen K. Sharsmith 1962-4-18 4959 Contra Costa near canyon; San Francisco Bay Region 152 Comment
  UC691601  Gilia achilleifolia subsp. multicaulis Mary L. Bowerman 1935-4-17 2839 Contra Costa West Road 2 mi from entrance Mount Diablo ((= North Rd.)); , West Road 289 Comment
  RSA67700  Gilia achilleifolia subsp. multicaulis Verne Grant, Alva Grant 1952-5-7 9137 Contra Costa Pioneer Camp, s.w. of Meridian Peak, Mt. Diablo Comment
  RSA722061  Gilia achilleifolia subsp. multicaulis Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14226 Contra Costa Mt. Diablo southeast of Walnut Creek, serpentine knoll ca 1/2 airmile north of Curry Point 488 Comment
  JEPS12791  Gilia capitata subsp. staminea Rimo Bacigalupi with G. T. Robbins 1955-5-4 4981 Contra Costa just e Antioch (on sand hills along San Joaquin River front); along San Joaquin River front, e of Antioch 9 Comment
  RSA566429  Gilia capitata subsp. staminea Peter L. Morrell, Donna S. Krause 1993-5-16 239 Contra Costa Contra Costa County, along sides of raod 100m W of 1701 Wilbur Ave, Antioch, betw Southern Pacific tracks and San Joaquin River (0.5 miles W of Hwy 4/160). Comment
  RSA84900  Gilia capitata subsp. staminea G. Thomas Robbins 1940-5-19 323 Contra Costa on hills bordering the San Joaquin River e. g. Antioch Comment
  JEPS99990  Gilia clivorum G. Smick 2003-3-25 GAS 89 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC691608  Gilia clivorum Mary L. Bowerman 1935-5-1 2932 Contra Costa West Road 2 mi from entrance (( = North Road), Mount Diablo); Mount Diablo, West Road (=North Road) 182 Comment
  UC691677  Gilia clivorum Mary L. Bowerman 1935-4-19 2858 Contra Costa near Turtle Rock (dry hillside on opposite side of road); Mount Diablo, near Turtle Rock 457 Comment
  POM300969  Gilia clivorum Mary L. Bowerman 1935-4-19 2858 Contra Costa Near Turtle Rock; Mount Diablo. 457 Comment
  UC335961  Gilia tricolor subsp. tricolor J. G. Lemmon 1878-4-26 Contra Costa side of Mt. Diablo Comment
  UC691597  Gilia tricolor subsp. tricolor Mary L. Bowerman 1935-4-19 2864 Contra Costa West Road = North Road 6.3 mi from entrance Mount Diablo (Mount Diablo, above Pepperwood Spring); Mount Diablo, above Pepperwood Spring 609 Comment
  JEPS99596  Githopsis diffusa subsp. robusta Mary Bowerman 1978-5-14 Contra Costa Mount Diablo, Back Canyon trail to mine. Comment
  JEPS43109  Glaux maritima J. B. Davy 1900-6-7 6665 Contra Costa Suisun Bay, Martinez Martinez; Suisun Bay, Martinez Comment
  UC22422  Glaux maritima Jos. Burtt Davy 1900-6-7 6665 Contra Costa near Martinez Comment
  JEPS112332  Glycyrrhiza lepidota Dean G. Kelch and Andrew G. Murdock 2004-6-6 04 .222 Contra Costa Martinez; County: Contra Coasta; Downtown Martinez. Alhambra Creek near bay and railroad Station. Comment
  JEPS64809  Glycyrrhiza lepidota W. L. Jepson May 23 1891-May 24 1891 13599 Contra Costa Mt. Diablo Comment
  CDA6041  Gnaphalium luteoalbum D. G. Kelch, A. G. Murdock 2005-5-1 5 .185 Contra Costa Carquinez Strait; Crockett; Edwards Canyon. Comment
  UC691823  Gnaphalium palustre Mary L. Bowerman 1935-9-13 3342 Contra Costa Frog Pond Mount Diablo Comment
  CAS-BOT-BC303892  Gnaphalium palustre E. M. Zeile 1924-5-6 s.n. Contra Costa Near Walnut Creek Comment
  RSA666773  Gnaphalium palustre Barbara Ertter, Brad Olson 1991-9-28 10835 Contra Costa San Pablo Reservoir between Orinda and El Sobrante. 91 Comment
  POM721360  Gnaphalium stramineum Barbara Ertter, Richard K. Rabeler 1994-6-6 12817 Contra Costa Point Isabel in S Richmond; on old railroad bed north of Costco. Comment
  UC35376 Image available Godetia blasdalei W. C. Blasdale 1893-7-11 Contra Costa Point Isabel Comment
  LA203655  Grindelia camporum Lewis S. Rose; 1930-7-22 sn Contra Costa Antioch Bridge Comment
  CAS-BOT-BC305233  Grindelia hirsutula Evelina Cannon 1895-12-25 s.n. Contra Costa Pinole Pt. Comment
  JEPS120269  Grindelia hirsutula Barbara Ertter with David Gowen 2012-6-9 21023 Contra Costa at junction of Seaview Trail and road into EBMUD land north of Vollmer Peak, southeastern Tilden Park in Berkeley Hills Comment
  UC1118567  Grindelia hirsutula C. M. Belshaw 1936-5-15 2127 Contra Costa 2 1/2 mi nw Lone Tree Valley; Mt. Diablo Quad. Comment
  UC1599361  Grindelia hirsutula Katharine Brandegee 1911-7-6 Contra Costa Pt. Isabel Pt. Isabel (near RR crossing) Comment
  UC2013035  Grindelia hirsutula Barbara Ertter with Travis Columbus 1990-6-10 9099 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill; trail heading down ridge on N side of Briones Peak, at junction with Spengler Trail. Comment
  UC2042497  Grindelia hirsutula Barbara Keller 2007-7-10 Contra Costa Mt. Diablo State Park, along Summit Rd. Comment
  CAS-BOT-BC305238  Grindelia hirsutula W. I. Follett; E. Follett 1981-6-22 s.n. Contra Costa North and east side of Bald Peak, San Pablo Ridge 548 Comment
  CAS-BOT-BC305247  Grindelia hirsutula R. E. Frenkel 1963-8-18 267 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  SEINET3140051  Grindelia hirsutula M. P. Dunford 1980-7-30 1510- 12 -2 Contra Costa Cultivated specimen from seed collected just W of Antioch Bridge over the San Joaquin River Comment
  CDA1503  Grindelia stricta D. G. Kelch 1996-10-17 s.n. Contra Costa Carquinez Strait; Pt Edith Marsh Comment
  JEPS54107  Guillenia lasiophylla H. P. Chandler 1900-3-24 Contra Costa Briones Hills Region of Mount Diablo Comment
  JEPS68950  Guillenia lasiophylla Edward Lee 1935-3-10 1279 Contra Costa Donovan Road, w watershed of Kirker Creek Kirker Pass, Kirker Creek Comment
  UC10944  Guillenia lasiophylla W. H. Brewer 1862-4-24 987 Contra Costa Camp 68 Martinez Comment
  UC691126  Guillenia lasiophylla Mary L. Bowerman 1930-6-7 291 Contra Costa Meridian Peak summit Mount Diablo Comment
  CAS-BOT-BC304577  Gutierrezia californica Peter Rubtzoff 1951-10-7 822 Contra Costa Along lower San Joaquin River, east of Antioch Comment
  JEPS79354  Gutierrezia californica Edward Lee with Annetta Carter 1935-8-17 1622 Contra Costa Antioch sand-dunes Antioch Comment
  CAS-BOT-BC304581  Gutierrezia californica Mary L. Bowerman 1938-11-12 3729 Contra Costa Mount Diablo. Lime Ridge toward crest of hilllside north of break 152 Comment
  UCD36026  Hainardia cylindrica Beecher Crampton 1949-6-6 471 Contra Costa Contra Cost County, city of Richmond. 16 Comment
  UC80320  Helenium bigelovii J. W. Congdon 1893-7-29 Contra Costa Martinez Comment
  UC1561249  Helenium puberulum Barbara Ertter 1989-9-30 8863 Contra Costa East Bay Skyline Nat'l Recreation Trail (=Nimitz Way) just n Tilden Park border (e of El Cerrito); Wildcat Canyon Regional Park Comment
  UC566690  Helenium puberulum H. L. Mason 1924-11-23 1162 Contra Costa Las Trampas Creek Comment
  CDA6433  Helenium puberulum T. C. Fuller 1958-7-3 1270 -58 Contra Costa Carquinez Strait; Highway 4, 4 miles west of Martinez. 0 Comment
  SEINET11843054  Helenium puberulum Unknown 1983-1 4954 Contra Costa Castro Ranch Road between Hillside St. & Alhambra Valley Rd Comment
  CAS-BOT-BC305327  Helianthella castanea John Thomas Howell 1931-5-12 6475 Contra Costa Nortonville Comment
  POM52002  Helianthella castanea H. M. Hall 1916-5-31 10137 Contra Costa Mount Diablo, north slope of summit 1159 Comment
  RSA8535  Helianthella castanea J. T. Howell 1933-5-14 11282 Contra Costa Hills east of St. Mary's college Comment
  UC194921  Helianthella castanea H. M. Hall 1916-5-31 10137 Contra Costa n slope of summit Mt. Diablo 1158 Comment
  UC2031433  Helianthella castanea Barbara Ertter 1991-6-1 10074 Contra Costa Las Trampas Regional Wilderness in hills W of Danville Comment
  UC2028316  Helianthemum scoparium Barbara Ertter, Susan D'Alcamo 1998-6-12 16161 Contra Costa Summit Road to top of Mount Diablo. Comment
  CAS-BOT-BC305372  Helianthus annuus Brandegee No date on label s.n. Contra Costa Antioch Comment
  UC697184  Helianthus gracilentus Mary L. Bowerman 1935-5-22 3055 Contra Costa Saddle w of Twin Peaks ((Eagle Point Ridge)); Mount Diablo Comment
  JEPS99485  Helianthus gracilentus Mary Bowerman 1995-5-21 Contra Costa Mount Diblo. Wall Pt. Trail ca. 1/2 mi. E of Wall Pt. Comment
  POM301045  Helianthus gracilentus Mary L. Bowerman 1935-5-22 3055 Contra Costa Mt. Diablo: Saddle west of Twin Peaks (Eagle Point ridge). Chapparal from saddle up to Twin Peaks (southwest face) and downwards into Uncle Sam Canyon. Comment
  UC1084508  Heliotropium curassavicum G. Thomas Robbins 1940-5-19 330 Contra Costa roadside between Antioch and Rio Vista Rio Vista Comment
  UC650558  Heliotropium curassavicum Ira L. Wiggins 1930-4-18 4606 Contra Costa Jersey Isl. Comment
  CHSC75063  Helminthotheca echioides Roger Thom 1987-5-28 26 Contra Costa 3300 block of Johnson Rd. 0.3 mi from intersection with Reliez Valley Rd. Lafayette. Edge of pasture. 137 Comment
  CDA37817  Hemizonia congesta Godwyn 2012-6-22 PDR# 1641308 Contra Costa Pleasanton; 7300 Camino Tassajara. 0 Comment
  UC197525  Hemizonia congesta subsp. lutescens H. M. Hall 1914-9-13 9875 Contra Costa n of San Pablo Comment
  UC201235  Hemizonia congesta subsp. lutescens H. M. Hall 1914-8-23 9860 Contra Costa 2 km nw San Pablo 15 Comment
  LA203706  Hemizonia congesta subsp. luzulifolia John Thomas Howell; 1930-9-28 5488 Contra Costa 2 mi. from Concord on road to Walnut Creek Comment
  UC405440  Hemizonia congesta subsp. luzulifolia Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  UC473563  Hemizonia congesta subsp. luzulifolia John Thomas Howell 1930-9-28 5488 Contra Costa 2 mi from Concord (on road to Walnut Creek) Comment
  UC691557  Hemizonia congesta subsp. luzulifolia Mary L. Bowerman 1933-9-9 2426 Contra Costa se-facing slope above Curry Canyon (onway to Blackberry Spring); Mount Diablo Comment
  CAS-BOT-BC314872  Hemizonia congesta subsp. luzulifolia D. E. Breedlove 1969-10-18 16707 Contra Costa Along the roadbank on Deer Hill Road near the junction with Happy Valley Road, Lafayette Comment
  POM53580  Hemizonia pungens subsp. pungens C. F. Baker 1903-4-27 2875 Contra Costa Byron. Comment
  SEINET3387071 Image available Hemizonia virgata Lewis S. Rose 1932-10-2 32654 Contra Costa Marsh creek road. Comment
  UC901877  Heracleum lanatum L. Constance 1950-6-25 3326 Contra Costa s. rim Wildcat Canyon (Tilden Park); , Tilden Park 365 Comment
  CAS-BOT-BC124027  Hesperevax caulescens M. K. Curran 1883-4-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC310194  Hesperevax sparsiflora var. sparsiflora Mary L. Bowerman 1933-4-15 1850 Contra Costa Mount Diablo. Canyon south of Arroyo del Cerro Comment
  CAS-BOT-BC167431  Hesperolinon breweri Helen K. Sharsmith 1947-6-2 3947 Contra Costa Headwaters of Marsh Creek, on shale (?) 0.6 miles from summit of Clayton-Tassajaro-Livermore Road, Mount Diablo 304 Comment
  CAS-BOT-BC167439  Hesperolinon breweri Helen K. Sharsmith 1947-6-2 3947 Contra Costa Headwaters of Marsh Creek, on shale (?) 0.6 miles from summit of Clayton-Tassajaro-Livermore road, Mount Diablo 304 Comment
  CAS-BOT-BC167440  Hesperolinon breweri Alice Eastwood 1915-5-30 4556 Contra Costa Mt. Diablo Comment
  UC311528  Hesperolinon breweri A. D. E. Elmer July, 1903 4545 Contra Costa Mount Diablo Comment
  UC692665  Hesperolinon californicum Mary L. Bowerman 1933-6-14 2279 Contra Costa Inner Black Hills w 1970; Mount Diablo Comment
  UCR168521  Hesperolinon micranthum J. T. Howell 1931-5-12 6472 Contra Costa Central Western; San Francisco Bay area, Nortonville 488 Comment
  POM203316  Hesperolinon micranthum J. T. Howell 1931-5-12 6472 Contra Costa Nortonville Comment
  UC187375  Hesperomecon linearis C. F. Baker 1903-4-25 2802 Contra Costa Antioch Comment
  UC35056  Hesperomecon linearis Chesnut and Drew 1889-4-17 Contra Costa Antioch Comment
  UC579909  Hesperomecon linearis Annetta M. Carter 1933-4-23 298 Contra Costa San Joaquin River, between Antioch Bridge and Antioch Comment
  RSA445543  Hesperomecon linearis H. de Forest 1930-05 s.n. Contra Costa [No location data on label] Comment
  CAS-BOT-BC143646  Heteromeles arbutifolia H. E. McMinn 1925-1-1 s.n. Contra Costa Head of San Leandro Creek Comment
  SBBG21359  Heteromeles arbutifolia V. Haraden 1941-7-18 12 Contra Costa near Nortonville 121 Comment
  OBI7752  Heteromeles arbutifolia Dennis Voight 1975-11-26 22 Contra Costa Found in the Briones reservoir area 1.5 mi E of Bear Creek rd 152 Comment
  UC1584840  Heterotheca grandiflora Jerry Powell 1990-3-9 1574 Contra Costa Antioch National Wildlife Refuge Comment
  CAS-BOT-BC318824  Heterotheca grandiflora A. j. Soares 1925-11-1 s.n. Contra Costa Hayward Comment
  CAS-BOT-BC311160  Heterotheca sessiliflora subsp. bolanderi John Thomas Howell 1930-7-31 5416 Contra Costa North Berkeley Hills Comment
  CAS-BOT-BC310908  Heterotheca villosa Niall McCarten; V. I. Dains 1986-1-1 04311257 81 Contra Costa East Contra Costa County. SW corner of Hwy. 4 & Laurel Road near Oakley Comment
  JEPS49731  Heuchera micrantha W. L. Jepson 1922-5-23 9649 Contra Costa Mt. Diablo Comment
  JEPS129821  Holcus lanatus Dean G. Kelch 2006-6-23 06 .320 Contra Costa West Valona. West of the Zampa Bridge above San Pablo Ave. Comment
  CDA7978  Holocarpha heermannii A. G. Murdock, D. G. Kelch 2002-7-2 67 Contra Costa Carquinez Strait Region; Mt. Wanda - Martinez. Crest of Mt. Wanda on north side of main fire road. Comment
  UC4897718  Holocarpha heermannii Lewis S. Rose 1934-9-9 34462 Contra Costa 9 mi ne Danville Comment
  CAS-BOT-BC325830  Holocarpha heermannii John Thomas Howell 1930-9-28 5487 Contra Costa 1 mile from Walnut Creek on Walnut Avenue to Concord Comment
  CAS-BOT-BC325844  Holocarpha heermannii David D. Keck 1933-10-28 2605 Contra Costa 4.5 mi. SE of Martinez on road to Pacheco Comment
  UC691541  Holocarpha heermannii Mary L. Bowerman 1930-6-3 232 Contra Costa Comment
  SJSU7098  Holocarpha macradenia D. J. Powers 1974-10-6 1001 B Contra Costa 100-300' E of Interstate Hwy 80 & 100-300 yards S of Appian Way, Pinole Comment
  UC1550280  Holocarpha macradenia Dean Kelch 1988-8-8 Contra Costa immediately s I-80 (ca 1/2 mi w of Appian Way); Pinole Comment
  CAS-BOT-BC320221  Holocarpha macradenia Walter Knight; Irja Knight 1977-9-12 3161 Contra Costa At SE corner of A-pian [Appian] Way and Highway I-80. Pinole Comment
  UCD133200  Holocarpha macradenia Robert E. Preston 1993-6-29 624 Contra Costa Pinole, ca. 1,000 feet east of Interstate 80, between Interstate 80 and Crespi Junior High School. 94 Comment
  OBI48592  Holocarpha obconica Lewis S. Rose 1932-10-2 32654 Contra Costa Marsh Crk Rd Comment
  UC1357615  Holocarpha obconica R. F. Hoover 1965-9-24 9649 Contra Costa foothills w Byron (between Kellogg and Marsh Creeks) Comment
  RSA22274  Holocarpha obconica subsp. obconica L. S. Rose 1938-10-28 38309 Contra Costa Marsh Creek, 8 miles W of Byron. 61 Comment
  LA27067  Holocarpha virgata Lewis S. Rose; 1941-10-16 41467 Contra Costa 2 mi. W of Byron 33.0 Comment
  UC523544  Holocarpha virgata subsp. virgata David D. Keck 1933-11-2 2620 Contra Costa 6 mi from Antioch (between Lone Tree Way and Marsh Creek Road); Horse Valley Comment
  JEPS99981  Holodiscus discolor A. Langston 2003-6-12 AL 40 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CDA948  Hordeum brachyantherum subsp. brachyantherum D. G. Kelch 2006-5-5 6 .132 Contra Costa East Bay; Wildcat Canyon Regional Park. Near Wildcat Canyon Road terminus. Comment
  JEPS111064  Hordeum brachyantherum subsp. brachyantherum Lee Echols 2003-6-15 s.n. Contra Costa N of Lark Drive in SW portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  CAS-BOT-BC281255  Hordeum brachyantherum subsp. brachyantherum R. E. Frenkel 1964-4-29 461 Contra Costa 0.2 mile west of Bixler Road on Balfour Road 6 Comment
  CHSC116612  Hordeum marinum subsp. gussoneanum Lowell Ahart; Josephine Guardino 2016-4-19 20800 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  SEINET4182779 Image available Hordeum marinum subsp. gussoneanum Barbara Ertter, Jim Jokerst, Dave Magney 1989-4-5 8140 Contra Costa Alkali sink West and adjacent Clifton Court Forebay, circa 15 air miles Southwest of Stockton 0 Comment
  UC692426  Hordeum marinum subsp. gussoneanum Mary L. Bowerman 1931-5-13 846 Contra Costa Pine Canyon floor slightly more than a mi above the Sulphur Spring (Mount Diablo); , Pine Canyon Floor Comment
  UCD85876  Hordeum marinum subsp. gussoneanum P. B. Kennedy 1929-4-24 s.n. Contra Costa Corner of Franklin Canyon Road near Concord, near Soldiers Monument. Comment
  CAS-BOT-BC289558  Hordeum marinum subsp. gussoneanum Peter H. Raven; G. Thomas Robbins 1956-4-28 9044 Contra Costa In a low filed jsut east of junction to Martinez along State Highway 4 Comment
  CAS-BOT-BC289560  Hordeum marinum subsp. gussoneanum R. E. Frenkel 1963-5-22 207 Contra Costa On Morgan Territory Road, 0.2 mile south of summit 637 Comment
  SEINET10826946  Hordeum marinum subsp. gussoneanum A. Arthur Heller 1928-4-15 Heller 14498 Contra Costa Low ground near Byroa in clay soil. Comment
  CAS-BOT-BC284889  Hordeum murinum subsp. leporinum Alice Eastwood 1921-4-18 10264 Contra Costa Antioch Comment
  UC50687  Hordeum murinum subsp. leporinum Jos. Burtt Davy 1900-3-24 6536 Contra Costa Point Richmond Comment
  UC697126  Hordeum murinum subsp. leporinum Mary L. Bowerman 1933-5-8 2003 Contra Costa s face Fossil Ridge not far from but out of sight of South Entrance Mount Diablo; , s face Fossil Ridge 289 Comment
  CAS-BOT-BC284890  Hordeum murinum subsp. leporinum R. E. Frenkel 1964-2-25 382 Contra Costa North of Marsh Creek Road, 1/4 mile west of junction with Walnut Blvd. 33 Comment
  UC691097  Horkelia californica subsp. dissita Mary L. Bowerman 1938-6-14 3684 Contra Costa Mt. Diablo, Rocky Point Spring 701 Comment
  SEINET11263166  Horkelia californica subsp. dissita Barbara Ertter, Chris Thayer 1996-10-25 15385 Contra Costa West side of Mount Diablo, North Gate Road 1.0 roadmiles NW of Junction, spring near road.; 0 579 Comment
  UC1606349  Horkelia californica subsp. frondosa Barbara Ertter with Dianne Lake 1991-8-18 10677 Contra Costa e;steep N-facing slope above pilings, ne of Bull Valley staging area Crockett; Carquinez Stsrait Regional Shoreline Comment
  CAS-BOT-BC532054  Horkelia californica var. frondosa V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley Comment
  CAS-BOT-BC206138  Hosackia crassifolia Alice Eastwood 1915-5-30 4524 Contra Costa Mt. Diablo Comment
  SD241719  Hydrocotyle verticillata Barbara Ertter, Lincoln Constance 1995-6-16 14260 Contra Costa East edge Dow Marsh on west side Antioch Marina, south side San Joaquin River in Delta area. Comment
  UC692603  Hypericum formosum var. scouleri Mary L. Bowerman 1930-6-28 395 Contra Costa Mt. Diablo, Lower Silver Spring Comment
  CHSC116616  Hypochaeris glabra Lowell Ahart; Josephine Guardino 2016-4-19 20765 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the east edge of the gravel road, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles southwest of Stockton. 160 Comment
  JEPS100182  Hypochaeris glabra G. Smick 2003-3-27 GAS 100 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS127045  Hypochaeris glabra Lowell Ahart, Josephine Guardino 2016-4-19 20765 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  UC55118  Hypochaeris glabra H. M. Hall 1901-4-5 1730 Contra Costa Mt. Diablo 527 Comment
  CAS-BOT-BC312936  Hypochaeris glabra Mary L. Bowerman 1930-6-18 337 Contra Costa Mount Diablo. Dan Cook (Rock City) Canyon Comment
  UC1555372  Hypochaeris radicata Jerry Powell 1988-5-18 1533 Contra Costa w Richmond; Point Molate Comment
  RSA762307  Hypochaeris radicata William J. Ferlatte, L. M. Moe 1970-4-27 1252 Contra Costa San Francisco Bay, Red Rock Island. Comment
  UC2070455  Iris pseudacorus Barbara Ertter with Dorothy Frantz 2001-5-10 17639 Contra Costa Diablo Foothill Regional Park, Pine Creek just south of Castle Rock Recreation Area. Comment
  UC692080  Isoetes howellii Mary L. Bowerman 1935-6-28 3166 Contra Costa Chase Pond s. of summit Mt.Diablo (by Old Government trail, e. side of pond); , Chase Pond 548 Comment
  CAS-BOT-BC324755  Iva axillaris James McMurphy 1909-5-20 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC324753  Iva axillaris Morris Halperin 1930-5-20 s.n. Contra Costa Hoffman Ranch, Brentwood Comment
  UC1949201  Jaumea carnosa Barbara Ertter with Elizabeth Neese 1988-10-15 7975 Contra Costa W of I-580 in El Cerrito, W side along Rydin Road N of Central Avenue Comment
  JEPS58697  Juglans californica var. hindsii W. L. Jepson 1909-4-30 3114 Contra Costa in the sharp gulch upper Walnut Creek, Burton Ranch Comment
  CAS-BOT-BC102307  Juglans hindsii Mary L. Bowerman 1936-5-6 3412 Contra Costa Mitchell Canyon floor 259 Comment
  JEPS100044  Juglans regia G. Smick 2003-5-30 GAS 209 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC109898  Juncus Walter Knight; Lawrence Heckard; Bert Johnson 1978-9-28 3276 Contra Costa Sierra Nevada. Browns Island, Alder Point. Comment
  UC2028428  Juncus articulatus Barbara Ertter 1996-9-19 15300 Contra Costa Antioch Marina, edge of bay in Dow Marsh lands Comment
  CDA9363  Juncus balticus D. G. Kelch 2006-7-14 6 .326 Contra Costa Carquinez Strait; Along Marine Vista Ave immmediately west of Pacheco Slough. East of Martinez. Comment
  UC1818993  Juncus balticus Barbara Ertter, Mary Bowerman et al. 1995-5-7 14030 a Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, wet ground around small pond west of road in grassy flat. Comment
  CHSC116624  Juncus balticus subsp. ater Lowell Ahart; Josephine Guardino 2016-4-19 20785 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along a small drainage, west of the poor dirt road, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  JEPS66915  Juncus bufonius var. bufonius Burtt Davy 1895-4-7 948 a Contra Costa Antioch Comment
  UC2028304  Juncus bufonius var. bufonius Barbara Ertter, Susan D'Alcamo 1998-6-12 16201 Contra Costa Along Curry Canyon Road just east of Curry Point, south side of Mount Diablo. Comment
  SEINET3880292  Juncus nevadensis Kaye H. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4979 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough. SE portion of Bethel Slough.; 0 610 Comment
  SEINET3880409  Juncus nevadensis Kaye H. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4980 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough. SE portion of Bethel Slough.; 0 610 Comment
  UC1584658  Juncus occidentalis Jerry Powell 1989-3-26 1560 Contra Costa Point Molate Comment
  UC1619922  Juncus occidentalis Barbara Ertter, Brad Olson 1991-11-10 10887 Contra Costa behind yacht harbor (extreme w Richmond); Richmond, Point San Pablo Comment
  UC2013049  Juncus occidentalis Barbara Ertter with Lisa Schultheis 1996-9-2 15274 Contra Costa South side Mount Diablo, short distance down trail to Oyster point from Blackhawk Ridge road junction. Comment
  UC2028530  Juncus occidentalis Barbara Ertter 1998-1-17 15898 Contra Costa Lime Ridge Open Space at NW foot of Mount Diablo. Comment
  UC2028532  Juncus occidentalis Barbara Ertter 1998-5-3 16035 Contra Costa Above SW of fork of Pine Creek at southwest base of Mount Diablo. Comment
  JEPS78629  Juncus oxymeris Walter Knight, L. R. Heckard, and Bert Johnson 1978-9-28 3276 Contra Costa Alder Point Browns Island Comment
  JEPS112437  Juncus patens D. G. Kelch 2004-5-7 04 .200 Contra Costa Ca ada del Cierbo Ca ada del Cierbo 40 Comment
  UCD141766  Juncus patens M. Wiesendanger 1926-5-1 1465 Contra Costa near Richmond. Comment
  UCD35162  Juncus patens Beecher Crampton 1950-7-29 626 Contra Costa 1 mile north of Richmond. Comment
  SEINET6174583  Juncus phaeocephalus L. Koch 1940-6-5 1004 b Contra Costa Two milees south of San Rafael Ferry Dock Comment
  JEPS112452  Juncus tenuis D. G. Kelch 2005-4-15 05 .134 Contra Costa Rodeo Creek East-West canyon feeding into Rodeo Creek 120 Comment
  JEPS112456  Juncus tenuis D. G. Kelch 2005-3-24 05 .50 Contra Costa Pt. Pinole near wharf 2 Comment
  UC691976  Juncus xiphioides Mary L. Bowerman 1930-6-28 383 Contra Costa Canyon Nook Picnic Grounds Mount Diablo 670 Comment
  UC691982  Juncus xiphioides Mary L. Bowerman 1932-8-27 1523 Contra Costa s of Turtle Rock; Mount Diablo Comment
  UC2670  Juncus xiphioides W. H. Brewer 1861-9-25 838 Contra Costa halfway up Monte Diablo from Mission San Jose; Mount Diablo Comment
Read comments
Jan 15 2012
  UC77  Juniperus californica Harley P. Chandler 1901-4-5 980 A Contra Costa Mt. Diablo Comment
  CAS-BOT-BC235870  Keckiella corymbosa A. D. E. Elmer 1903-7-1 4956 Contra Costa Mount Diablo Comment
  POM156900  Keckiella corymbosa A. D. E. Elmer 1903-07 4956 Contra Costa Mount Diablo Comment
  JEPS41062  Koeleria macrantha Rimo Bacigalupi and L. R. Heckard 1965-5-11 9083 Contra Costa San Francisco Bay Brooks Island (sw of Richmond); , Brooks Island 30 Comment
  UC691220  Koeleria macrantha Mary L. Bowerman 1934-6-9 2549 Contra Costa Fossil Ridge s of 1700 foot point Mount Diablo (Mount Diablo); , Fossil Ridge Comment
  UC692395  Koeleria macrantha Mary L. Bowerman 1933-5-3 1983 Contra Costa Alder Creek Canyon Mount Diablo; , Alder Creek Canyon 731 Comment
  CAS-BOT-BC273613  Koeleria pyramidata Mary L. Bowerman 1933-5-3 1983 Contra Costa Mount Diablo. Indian Ceremonial Canyon 731 Comment
  CAS-BOT-BC273615  Koeleria pyramidata Mary L. Bowerman 1935-5-22 3036 Contra Costa Mount Diablo. Eagle Point ridge, canyon at north end which heads into saddle west of Twin Peaks 304 Comment
  CAS-BOT-BC273618  Koeleria pyramidata Walter Knight 1972-4-1 s.n. Contra Costa Mallard Slough between Port Chicago and Pittsburg Comment
  CAS-BOT-BC340425  Lactuca saligna John Thomas Howell 1932-10-16 10819 Contra Costa Near San Ramon Comment
  UC1618166  Lactuca virosa Barbara Ertter 1991-3-27 9717 Contra Costa Hillside Natural Area El Cerrito (along path n of Schmidt Lane) Comment
  UC691444  Lactuca virosa J. T. Howell 1942-7-1 17040 Contra Costa Comment
  UC697161  Lagophylla ramosissima Mary L. Bowerman 1930-6-5 262 Contra Costa North Road 5.8 mi from North Gate; Mount Diablo 457 Comment
  JEPS99988  Lamarckia aurea G. Smick 2003-4-22 GAS 140 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS128773  Lamarckia aurea Kevin Hintsa 2000-6-5 Contra Costa 3101 Finley Road at SE base of Mount Diablo. Comment
  RSA181411  Lasthenia californica James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  RSA55168  Lasthenia californica C. F. Baker 1903-4-28 2829 Contra Costa Marsh Creek, Mt. Diablo. Comment
  UC1795667  Lasthenia californica Barbara Ertter, Mary Bowerman et al. 1995-5-7 14060 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, small serpentine patch at road junction Comment
  JEPS106453  Lasthenia conjugens Barrett Anderson with Thomas Scofield 1995-4-25 4553 Contra Costa Along Hwy 4 approx. 2.38 km E of Interstate 80--Hwy 4 interchange near Rodeo, along Rodeo Creek. Comment
  UC90073  Lasthenia conjugens T. S. Brandegee Jun 1884 Contra Costa Walnut Creek Comment
  POM50986  Lasthenia ferrisiae Alice Eastwood 1914-3-14 3761 Contra Costa Byron Springs. Comment
  CAS-BOT-BC353334  Lasthenia fremontii K. Curran April (Year not stated). s.n. Contra Costa Suisun. Comment
  JEPS18258  Lasthenia fremontii Peter H. Raven with Mason, Stone, Ornduff, Kuijt 1957-4-4 10587 Contra Costa 3 mi s of Byron Comment
  CAS-BOT-BC353331  Lasthenia fremontii Lewis S. Rose 1956-4-16 56016 Contra Costa Dry rain pool, 2 mi. SE of Byron. 7 Comment
  JEPS35363  Lasthenia glaberrima W. L. Jepson 1892-5-24 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC352925  Lasthenia glaberrima A. D. E. Elmer 1903-5-1 4321 Contra Costa Walnut Creek Comment
  CAS-BOT-BC352928  Lasthenia glaberrima A. D. E. Elmer 1903-5-1 4321 Contra Costa Walnut Creek Comment
  JEPS116852  Lasthenia glaberrima David Gowen 2007-4-16 678 Contra Costa Briones Regional Park in vernal depression northeast of Sindicich Lagoon. Comment
  POM301039  Lasthenia glaberrima Mary L. Bowerman 1935-6-21 3153 Contra Costa Mount Diablo: South of Turtle Rock, pool east of main pond Comment
  UCD32417  Lasthenia glaberrima Beecher Crampton 1950-5-10 573 Contra Costa Contra Costa County, 1 mile north of Richmond, along Santa Fe tracts. 10 Comment
  CAS-BOT-BC352774  Lasthenia glabrata subsp. glabrata Paul F. Covel 1936-4-19 232 Contra Costa Las Trampas Canyon Comment
  UC691499  Lasthenia glabrata subsp. glabrata Mary L. Bowerman 1933-5-5 2000 Contra Costa Alamo Canyon 304 Comment
  POM301000  Lasthenia glabrata subsp. glabrata Mary L. Bowerman 1933-5-5 2000 Contra Costa Alamo Canyon, toward mouth. 305 Comment
  CAS-BOT-BC366302  Lasthenia minor Alice Eastwood 1921-4-18 10297 Contra Costa Antioch Comment
  UC191034  Lasthenia minor Katharine Brandegee 1904-5-5 Contra Costa near Antioch; Judsonville Comment
  UC30472  Lasthenia minor F. T. Bioletti 1892-1 Contra Costa Byron Comment
  CAS-BOT-BC366306  Lasthenia minor J. T. Howell 1933-3-29 10895 Contra Costa Nortonville Comment
  JEPS25041  Lasthenia platycarpha Rimo Bacigalupi with Paul C. Hutchinson and John Weiler 1959-3-10 6967 Contra Costa 1 mi se Byron (in fields e of Byron road) 6 Comment
  CAS-BOT-BC213351  Lathyrus jepsonii subsp. californicus Volney Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley Comment
  CDA27128  Lathyrus jepsonii subsp. californicus D. G. Kelch 2007-4-29 7 .204 Contra Costa Carquinez Strait; Richmond; Chevy s Hill N. Hilltop Dr. Comment
  JEPS89027  Lathyrus jepsonii var. californicus Volney Rattan 1887-5-22 Contra Costa Alhambra Valley Comment
  UC15383  Lathyrus jepsonii var. californicus W. H. Brewer 1862-4-30 1018 Contra Costa Camp 69 Walnut Creek Comment
  JEPS112357  Lathyrus jepsonii var. jepsonii Dean G. Kelch and Andrew G. Murdock 2004-6-4 325 Contra Costa Pacheco Marsh; County: Contra Costa. Comment
  JEPS107088  Lathyrus latifolius Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14671 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay, northwest corner of area. Comment
  JEPS112323  Lathyrus vestitus var. vestitus Dean G. Kelch and Andrew G. Murdock 2005-3-11 05 .037 Contra Costa Martinez - Franklin Hills; County: Contra Costa; Carq. Shoreline EBRP. Contra Costa County CA. West of Martinez Highschool. Comment
  RSA720810  Lavatera assurgentiflora Barbara Ertter 1994-6-6 12822 Contra Costa Point Isabel in south Richmond Comment
  UC1618178  Lavatera cretica Barbara Ertter 1991-5-12 9813 Contra Costa sw corner El Cerrito (Point Isabel Regional Shoreline, on San Francisco Bay); San Francisco Bay, Point Isabel Regional Shoreline Comment
  CHSC23345  Layia chrysanthemoides Willis Ball 1975-3-22 497 Contra Costa In area #5. Field ca. 200 yds due e of main boat ramp. 36 Comment
Read comments
May 24 2013
  JEPS13446  Layia chrysanthemoides R. F. Hoover 1939-4-25 4065 Contra Costa Richmond Hills Comment
  UC62893  Layia chrysanthemoides H. M. Hall 1901-3-22 1688 Contra Costa Rodeo Creek Region of San Francisco Bay, Rodeo Creek Comment
  UC89157  Layia chrysanthemoides T. S. Brandegee 1885-5-1 Contra Costa Antioch Comment
  CAS-BOT-BC323908  Layia chrysanthemoides Brandegee no date on sheet s.n. Contra Costa Antioch Comment
  CAS-BOT-BC321079  Layia glandulosa Alice Eastwood 1921-4-18 10271 Contra Costa Antioch Comment
  UC2029133  Layia hieracioides Barbara Ertter with David Gowen, Mike Park, and Victoria Seidman 2004-4-20 18359 Contra Costa Eagle Peak Trail on east side of Twin Peaks, north side of Mount Diablo. Comment
  CAS-BOT-BC377910  Layia platyglossa James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  SEINET3147924  Layia platyglossa L. S. Rose 1933-4-17 33093 Contra Costa Antioch Comment
  POM301051  Layia platyglossa Mary L. Bowerman 1935-4-26 2916 Contra Costa Ridge W of Indian Ceremonial Spring: Rocky ridge with S exposure 1006 Comment
  CAS-BOT-BC274327  Leersia oryzoides Malcom A. Nobs 1948-9-23 681 Contra Costa Rock Slough, 7 miles south of Kingston Comment
  CDA31884  Leersia oryzoides D. G. Kelch 2007-11-13 7 .656 Contra Costa Carquinez Strait; Old brick factory 1.2 km SE of Port Costa. Comment
  UC692109  Lemna valdiviana Mary L. Bowerman 1931-8-29 1030 Contra Costa Sheep Camp Spring, by North Road Sheep Camp Spring 533 Comment
  JEPS63258  Lepechinia calycina W. L. Jepson 1909-6-25 3121 Contra Costa Mt Diablo Comment
  CDA37473  Lepidium campestre V. Guise 2012-5-1 PDR# 1649640 Contra Costa Near Old School Road, Tassajara; east of Danville. 0 Comment
  JEPS111873  Lepidium chalepense D. G. Kelch 2005-4-2 05 .103 Contra Costa Alhambra Valley EBMUD land. North of intersection of Alhambra Valley Road and Castro Ranch Road 70 Comment
  JEPS116575  Lepidium coronopus David Gowen 2006-9-16 661 Contra Costa Wildcat Regional Park on fire road leading from Rifle Range Rd. to the canyon bottom. Comment
  UC2029022  Lepidium coronopus Barbara Ertter 1999-7-17 16762 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, Rifle Range Road. Comment
  UC1585845  Lepidium dictyotum Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8142 Contra Costa ca 15 air mi sw Stockton (w and adjacent to Clifton Court Forebay, se Contra Costa Co.) Comment
  CHSC67910  Lepidium dictyotum var. acutidens James D. Jokerst 1989-3-29 3068 Contra Costa 0.25 mi S of Byron Hot Springs NE of Livermore. Comment
  CHSC67912  Lepidium dictyotum var. acutidens James D. Jokerst 1989-3-29 3074 Contra Costa Byron Hot Springs area NE of Livermore, adjacent to pipeline on terrace S of ephemeral creek. Comment
  UC518001  Lepidium dictyotum var. acutidens Lewis S. Rose 1933-3-29 33041 Contra Costa Nortonville Comment
  UC856365  Lepidium dictyotum var. acutidens Lewis S. Rose 1937-3-26 37012 Contra Costa Byron 7 Comment
  CDA24908  Lepidium dictyotum var. dictyotum Jim Jokerst 1989-3-29 3073 Contra Costa Byron Hot Springs area northeast of Livermore, adjacent to pipeline on terrace south of ephemeral creek. 0 Comment
  POM181449  Lepidium didymum I. L. Wiggins 1930-4-18 4595 Contra Costa East end of Jersey Island. Comment
  JEPS100082  Lepidium latifolium A. Langston 2003-6-6 AL 34 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  NY76535  Lepidium latifolium B. J. Ertter 1991-5-12 9810 Contra Costa Point Isabel Regional Shoreline in southwest corner of El Cerrito, on San Francisco Bay Comment
  JEPS53660  Lepidium latipes W. L. Jepson 1918-6-4 7594 Contra Costa near Clayton; Mt. Diablo, Donner Canyon 137 Comment
  UC1179007  Lepidium latipes Francia Chisaki, Rimo C. Bacigalupi, and G. Thomas Robbins 1959-4-14 1320 Contra Costa 8 mi s Antioch (on Deer Valley Road, 0.2 mi s of junction with Briones Valley Road) Comment
  UC691078  Lepidium latipes Mary L. Bowerman 1933-4-15 1846 Contra Costa canyon s Arroyo del Cerro; Mount Diablo Comment
  CAS-BOT-BC89890  Lepidium nitidum Alice Eastwood 1914-3-14 3766 b Contra Costa Byron Springs. Comment
  CAS-BOT-BC89891  Lepidium nitidum Alice Eastwood 1914-3-14 s.n. Contra Costa Byron Springs. Comment
  CAS-BOT-BC89900  Lepidium nitidum Volney Rattan 1879-1-1 s.n. Contra Costa Antioch. Comment
  SBBG2518  Lepidium nitidum J. M. Tucker 1946-3-24 1380 Contra Costa hills between Nortonville and Somersville Comment
  CAS-BOT-BC89898  Lepidium nitidum Reed C. Rollins 1946-3-25 3044 Contra Costa Western slope of Mount Diablo. Comment
  CDA42432  Lepidium virginicum D. G. Kelch 2012-6-1 12 .093 Contra Costa Carquinez Strait Region; 1 km east of Port Costa in the vicinity of the old brick factory. Comment
  UC1287410  Lessingia pectinata var. tenuipes Willard Spence 1962-5-15 672 Contra Costa 0.2 mi e of entrance to Antioch Boat Ramp Comment
  UC221462  Lessingia pectinata var. tenuipes Dr. Edward Palmer Aug 17 1892-Aug 20 1892 2678 Contra Costa Byron Hot Springs Comment
  JEPS43231  Lewisia rediviva W. L. Jepson 1921-5-22 9206 Contra Costa a few feet below summit on n side of Mt. Diablo Mt. Diablo 1173 Comment
  UC38162  Leymus X multiflorus J. Burtt Davy May 1898 Contra Costa Port Costa Comment
  UC686616 Image available Leymus X multiflorus Frank W. Gould 1941-7-4 1304 Contra Costa near San Francisco Bay; Albany; near San Francisco Bay at Albany, Contra Costa Co. Comment
  UC691184  Leymus X multiflorus Mary L. Bowerman 1938-11-19 3734 Contra Costa Mitchell Creek tributary s Black Point; Mount Diablo 259 Comment
  CDA31464  Leymus triticoides D. G. Kelch 2009-5-24 9 .304 Contra Costa Carquinez Strait; S of Ozol, W/SW of Martinez. Comment
  UC691186  Leymus triticoides Mary L. Bowerman 1935-6-8 3124 Contra Costa west road 2 mi from entrance (gully just w of chaparral); Mount Diablo Comment
  UCD65640  Leymus triticoides A. A. Beetle 1941-6-24 1751 Contra Costa Point Richmond on San Francisco Bay. Comment
  UCD87580  Leymus triticoides R. Tofsrud 1947-6-12 176 Contra Costa W of Byron about 4 miles in the 'Arroyo de la Canada. Comment
  CAS-BOT-BC272218  Leymus triticoides John Thomas Howell; Gordon H. True 1972-6-29 48928 Contra Costa Byron Hot Springs Road southeast of Byron Comment
  RSA0021082  Leymus triticoides Mary L. Bowerman 1935-6-28 3159 Contra Costa Mount Diablo. Inner Black Hills west of the meridian. 473 Comment
  JEPS111522  Ligustrum sinense D. G. Kelch 2005-5-5 05 .207 Contra Costa Point Pinole - Giant Marsh Giant Salt Marsh 3 Comment
  UC814388  Lilaea scilloides Lewis S. Rose 1940-4-30 40257 Contra Costa 6 mi s Antioch 30 Comment
  CAS-BOT-BC211109  Lilaeopsis masonii Walter Knight; Irja Knight 1977-6-18 s.n. Contra Costa Antioch Sand Dunes, Little Corral site Comment
  UC691999  Lilium pardalinum Mary L. Bowerman 1935-6-21 3144 Contra Costa e fork Arroyo del Cerro; Mount Diablo 289 Comment
  JEPS19593  Limnanthes douglasii H. M. Evans Apr. 1901 Contra Costa Mt. Diablo Comment
  UCD33430  Limnanthes douglasii subsp. rosea Beecher Crampton 1968-3-27 8238 Contra Costa Contra Costa County, S.E. corner of County, ca. 3.5 miles south of Byron. Comment
  UC1795775  Limonium sinuatum Barbara Ertter, Brad Olson 1994-5-7 12767 Contra Costa Western Drive to Point Molate north west of Richmond-San Rafael bridge toll plaza, roadside near entrance to Point Molate Naval site Comment
  RSA721868C  Limonium sinuatum Barbara J. Ertter, Brad Olson 1994-5-7 12767 Contra Costa Western Drive to Point Molate, NW of Richmond -San Rafael bridge to toll plaza. Roadside near entrance to Point Molate Naval site. Comment
  JEPS112006  Linanthus bicolor D. G. Kelch 2005-4-15 05 .131 Contra Costa Rodeo Creek East-West canyon feeding into Rodeo Creek 120 Comment
  CAS-BOT-BC430619  Lithophragma affine John Thomas Howell 1933-5-14 11280 Contra Costa Hills east of St. Mary's College Comment
  JEPS112265  Lithophragma affine D. G. Kelch 2005-3-11 05 .033 Contra Costa Franklin Canyon - McHarry Ranch Road.; McHarry Ranch Road off of Franklin Canyon Road Comment
  UC570875  Lithophragma affine H. L. Mason 1932-3-20 6843 Contra Costa Antioch Sand Hills Comment
Read comments
Oct 9 2006
  SEINET6032167  Lithophragma affine H. E. Hodge 1956-4-7 23 Contra Costa 2 miles north of Orinda 61 Comment
  POM142564  Lithophragma affine subsp. affine H. P. Chandler 1901-3-23 867 Contra Costa Martinez. Region of San Francisco Bay. Comment
Read comments
Mar 6 2011
  POM203654  Lithophragma affine subsp. affine John T. Howell 1933-5-14 11280 Contra Costa Hills east of St. Mary s college Comment
  CDA945  Lithophragma heterophyllum D. G. Kelch 2006-5-4 6 .124 Contra Costa Carquinez Strait; Vaca Canyon, on North facing road cut/bank along Alhambra Valley Road. Comment
  UC2028178  Lithophragma heterophyllum Barbara Ertter 1998-5-3 16041 a Contra Costa Dusty Road at north end of Wall Point Ridge, southwest flank of Mount Diablo. Comment
  UC1051271  Lobelia tupa N. Floy Bracelin 1941-6-29 1262 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC283396  Lolium multiflorum R. E. Frenkel 1963-5-22 206 Contra Costa On Morgan Territory Road, 0.2 mile S of summit 637 Comment
  UCD66671  Lolium temulentum K. Brandegee 1916-5-9 Contra Costa Byron Springs. Comment
  JEPS15816  Lomatium caruifolium var. caruifolium Edw. L. Greene 1889-3-23 Contra Costa plains of the San Joaquin near Byron Comment
  UC106225  Lomatium macrocarpum Katharine Curran May 1885 Contra Costa Antioch Comment
  UC691771  Lomatium macrocarpum Mary L. Bowerman 1935-5-1 2945 Contra Costa w. rd. 4.4 mi. from entrance Mt. Diablo 381 Comment
  POM301010  Lomatium macrocarpum Mary L. Bowerman 1931-4-25 762 Contra Costa Mt. Diablo, near junction of south and west roads Comment
  CDA42192  Lonicera hispidula var. vacillans D. G. Kelch 2004-5-2 4 .167 Contra Costa Carquinez Strait Region; Edwards Canyon, Crockett. Comment
  RSA455187  Lonicera hispidula var. vacillans Thekla Mohr 1917-07 s.n. Contra Costa Mount Diablo Comment
  UC691482  Lonicera hispidula var. vacillans Mary L. Bowerman 1935-6-21 3145 Contra Costa e fork Arroyo del Cerro (several hundred yards below the spring) 289 Comment
  UC691757  Lonicera subspicata var. denudata Mary L. Bowerman 1932-10-9 1630 Contra Costa e side North Peak (se of the ridge leading directly to North Peak from Gabriel-Hinks'); Mount Diablo Comment
  UC1005847  Lonicera tatarica N. Floy Bracelin 1945-4-1 2840 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1795754  Lotus corniculatus Barbara Ertter, Kristin Ertter 1995-7-11 14473 Contra Costa Sulfur Spring on Pine Cr, Diablo Foothills Regional Park SW of Walnut Creek, marshy wet ground. 121 Comment
  UC692271  Lotus crassifolius var. crassifolius Mary L. Bowerman 1930-6-10 312 Contra Costa Meridian Peak summit Mount Diablo Comment
  UC555416  Lotus micranthus H. L. Mason 1928-4-29 4428 Contra Costa Sycamore Canyon, s slope of Mount Diablo Mount Diablo Comment
  JEPS19443  Lotus micranthus W. L. Jepson 1891-6-9 13788 Contra Costa Fish Ranch Berkeley Hills Comment
  CDA28972  Lotus scoparius D. G. Kelch, Suzanne Latham, Matt Beyers 2009-6-3 9 .331 Contra Costa East Bay.; El Sobrante Ridge at end of Silver Belt Dr. on Miocene chert outcrop. Comment
  UC692270  Lotus scoparius Mary L. Bowerman 1932-9-24 1589 Contra Costa ridge running w from Twin Peaks; Mount Diablo 335 Comment
  JEPS100073  Lotus scoparius var. scoparius G. Smick 2003-5-30 GAS 201 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS55877  Lotus strigosus Chesnut and Drew 1890-4-18 Contra Costa Antioch Comment
  PASA1117  Lotus subpinnatus Annetta Carter 1929-3-31 Contra Costa Near Clayton Comment
  CDA9199  Lotus wrangelianus D. G. Kelch, D. A. Weinstein 2008-4-15 8 .047 Contra Costa Carquinez Strait; S Port Costa along Mckewen Rd. Comment
  CHSC21637  Lupinus albifrons Willis Ball 1975-3-9 486 Contra Costa In area #8. On n facing slope of large hill ca. 510 yds s of main parking lot ca. 750 yds w of Contra Loma Blvd. 124 Comment
  JEPS77021  Lupinus albifrons Robert M. Lloyd 1963-3-17 2146 Contra Costa 1 mi s intersection of Grizzly Peak and Skyline on Skyline; on Skyline Comment
  UCD105988  Lupinus albifrons P. B. Kennedy 1929-4-21 s.n. Contra Costa Happy valley, road off from Lafayette. Comment
  JEPS112355  Lupinus albifrons var. albifrons Dean G. Kelch and Andrew G. Murdock 2004-3-12 04 .019 Contra Costa Pinole Valley, County: Contra Costa; Hillside and canyon above Wright Road. Off of Pinole Valley Road. Contra Coasta County, CA. Comment
  UC692521  Lupinus albifrons var. albifrons Mary L. Bowerman 1931-4-25 785 Contra Costa between junction of one-way roads and top Meridian Peak summit (Mount Diablo); , Meridian Peak summit 1158 Comment
  UC692573  Lupinus albifrons var. albifrons Mary L. Bowerman 1931-4-5 676 Contra Costa below Gregory Ranch Mount Diablo (Mt. Diablo) Comment
  CAS-BOT-BC201372  Lupinus albifrons var. albifrons Paul F. Covel 1938-6-26 s.n. Contra Costa Las Trampas Canyon - behind St. Mary's Comment
  CAS-BOT-BC201376  Lupinus albifrons var. albifrons Charles Piper Smith 1922-4-14 3483 Contra Costa Antioch - Santa Fe Comment
  RSA29244  Lupinus albifrons var. albifrons Joseph A. Ewan 1934-3-10 8645 Contra Costa 2 mi. below Orinda Road bridge, Wildcat Canyon. Comment
  UC1129460  Lupinus albifrons var. collinus H. S. Yates 1934-9-2 4033 Contra Costa 2 mi nw Orinda; Concord Quad., nw of Orinda 304 Comment
  HSC101954  Lupinus albifrons var. douglasii Nikolaus Gillen, Michelle Bihler 2014-3-20 5 Contra Costa Mount Diablo State Park. Back Creek Trail. 340 Comment
  JEPS22882  Lupinus arboreus John Weiler with G. T. Robbins 1959-5-23 5991 Contra Costa nw side Brooks Island; San Francisco Bay, nr Richmond, Brooks Island Comment
  CHSC21618  Lupinus bicolor Willis Ball 1974-4-21 428 Contra Costa Contra Loma Regional Park. In area #1. On n side of road leading to main parking lot ca. 150 yds e of lot. One yd. n of road. 38 Comment
  UC149964  Lupinus bicolor Katharine Brandegee 1911-7-6 Contra Costa Pt. Isabel Comment
  UC33551  Lupinus bicolor V. King Chesnut 1888-4-14 Contra Costa Moraga Valley Comment
  UC400153  Lupinus bicolor Ynes Mexia 1929-4-21 2378 a Contra Costa Moraga Valley Comment
  UC614847  Lupinus bicolor Beryl O. Schreiber 1932-3-27 164 Contra Costa near Antioch; near Antioch Comment
  UC2028034  Lupinus bicolor Barbara Ertter 1998-4-4 15944 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, SE of Indian Valley School. Comment
  UC2028255  Lupinus bicolor Barbara Ertter with Gary Schoolcraft 1996-4-7 14573 Contra Costa Point San Pablo in west Richmond, crest of road to yacht harbor, coastal grassland along ridge, scraped roadbed to tower Comment
  POM23955  Lupinus densiflorus var. aureus Harriet Ann Walker 1911-7-8 2526 Contra Costa Near Point Isabel, east shore of San Francisco Bay. Comment
  UCD107762  Lupinus formosus P. B. Kennedy 1916-5-11 12 Contra Costa Grand View Terrace; Richmond District. Comment
  UC2029110  Lupinus formosus var. formosus Barbara Ertter with Travis Columbus 1990-6-10 9116 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill, SE of Alhambra Valley staging area Comment
  UC163954  Lupinus microcarpus var. densiflorus Miss H. A. Walker 1911-7-8 2526 Contra Costa near Point Isabel (e shore of San Francisco Bay); , near Point Isabel Comment
  UCR197907  Lupinus microcarpus var. densiflorus Beecher Crampton 1950-4-22 525 Contra Costa Above site of Judsonville, west of old Empire mine 183 Comment
  SD103749  Lupinus microcarpus var. densiflorus Walter Knight, Irja Knight 1979-6-8 3397 Contra Costa San Pablo Dam Road between Orinda & El Sobrante Comment
  SEINET8056959  Lupinus microcarpus var. densiflorus H. A. Walker 1911-7-8 2526 Contra Costa Near Point Isabel, east shore of San Francisco Bay Comment
  UCD108697  Lupinus microcarpus var. densiflorus August Hartman 1960-4-19 15 D Contra Costa North Gate Road, Mt. Diablo. 304 Comment
  UC15961  Lupinus microcarpus var. microcarpus J. Burtt Davy April 1895 Contra Costa Antioch Comment
  UC201009  Lupinus microcarpus var. microcarpus Katharine Brandegee Aug 1918 Contra Costa Richmond Annex; El Dorado St. and Sta. Clara Ave. Comment
  UC201022  Lupinus microcarpus var. microcarpus Katharine Brandegee 1918-6-19 Contra Costa Richmond Annex; El Dorado St. Comment
  UC201099  Lupinus microcarpus var. microcarpus Katharine Brandegee Contra Costa Richmond Annex Comment
  UC2028083  Lupinus microcarpus var. microcarpus Barbara Ertter with Christopher Baysdorfer 1998-5-10 16120 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, quarry area on west side. Comment
  UC126998  Lupinus nanus J. Burtt Davy 1897-4-17 Contra Costa Point Isabel Comment
  RSA128342  Lupinus nanus subsp. nanus Peter H. Raven 1950-3-12 1427 Contra Costa Happy Valley Road, 3.8 miles above junction with Upper Happy Valley Road. Comment
  JEPS107018  Lupinus pachylobus J. Greenhouse with Kevin Hintsa 2004-4-5 5089 Contra Costa Mt. Diablo, Fire Interpretive Trail 1112 Comment
  UC2070441  Lupinus pachylobus Barbara Ertter with Linda Vorobik 2002-4-6 17823 Contra Costa South side of Mount Diablo, roadside NW of Curry Point trailhead. Comment
  SEINET10486145  Lupinus polycarpus Frenkel 1964-3-27 FRENKEL 409 Contra Costa On giant road, .4 mi n of atsf rr crossing, richmond. 15 Comment
  UC865486  Lupinus succulentus Lewis S. Rose 1941-3-13 41027 Contra Costa 7 mi w of Byron Marsh Creek (Marsh Creek) 60 Comment
  POM181435  Lupinus succulentus I. L. Wiggins 1930-4-7 4567 Contra Costa Near Mountain Horse, Altamont Pass Comment
  UCD32374  Lupinus succulentus Beecher Crampton 1950-4-12 510 Contra Costa 1 mile south of Richmond, intersection of Cutting Blvd. and Carlson Blvd., singular path along S.P. railroad right of way. 22 Comment
  HSC14134  Luzula comosa Greg Bos 1963-3-9 34 Contra Costa Albany Hill 12 Comment
  JEPS120275  Lychnis coronaria Barbara Ertter 2012-10-27 21293 Contra Costa entrance gate to Golf Course Trail in Tilden Regional Park 370 Comment
  UC1618314  Lycopus americanus Barbara Ertter, CNPS 1990-9-16 9646 Contra Costa n.e. Brentwood (e. end of Gateway Rd. at w. edge of Franks Track State Recreation Area, Bethel Isl.); n.e. Contra costa co., Bethel Isl., Franks Track State Recre Comment
  UC1607619  Lycopus asper Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, and Amy Hiss 1991-8-18 10691 Contra Costa w. end of Browns Isl. n. of Pittsburg (near confluence of Sacramento & San Joaquin Rivers, opposite Pittsburg Marina); Browns Isl. Comment
  JEPS107097  Lythrum californicum Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10695 Contra Costa Browns Island N of Pittsburg near confluence of Sacramento & San Joaquin rivers, opposite Pittsburg Marina, center of w. end of island Comment
  UC692631  Lythrum californicum Mary L. Bowerman 1930-9-27 461 Contra Costa (2 mi by road from North Gate (at trough, take trail to west, follow to fence and go through), Mount Diablo); Mount Diablo Comment
  UC692638  Lythrum hyssopifolia Mary L. Bowerman 1933-8-2 2393 Contra Costa Mount Diablo, Boulevard Spring, by West Road Boulevard Spring; Mount Diablo, Boulevard Spring Comment
  UC5897  Maclura pomifera W. G. Klee June 1880 Contra Costa road to Walnut Creek Comment
  UC697172  Madia elegans Mary L. Bowerman 1933-5-17 2106 Contra Costa Curry Canyon brance s of Olafsons' barn Mount Diablo 289 Comment
  UCD102388  Madia elegans Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. North Peak Road to North Peak. 1000 Comment
  UC2028300  Madia elegans Barbara Ertter, Susan D'Alcamo 1998-6-12 16191 Contra Costa North Peak Trail south of Prospectors Gap on east side of Mount Diablo summit. Comment
  UC691548  Madia exigua Mary L. Bowerman 1933-5-8 2017 Contra Costa Fossil Ridge near crest, on n side by side road Mount Diablo Comment
  CAS-BOT-BC342985  Madia gracilis Mary L. Bowerman 1930-6-5 264 Contra Costa Mount Diablo. North Road 5.8 miles from North Gate 457 Comment
  UC697160  Madia gracilis Mary L. Bowerman 1933-5-8 2018 Contra Costa near crest Fossil Ridge (on n side by side road); Mount Diablo Comment
  CAS-BOT-BC342983  Madia gracilis John Thomas Howell 1931-5-12 6484 Contra Costa North side of Mt. Diablo Comment
  UC2028314  Madia gracilis Barbara Ertter, Susan D'Alcamo 1998-6-12 16162 Contra Costa Summit Road to top of Mount Diablo. Comment
  POM301014  Madia gracilis subsp. gracilis Mary L. Bowerman 1933-5-8 2018 Contra Costa Fossil Ridge near crest, north side by side road. Comment
  UC89534  Madia radiata M. K. Curran May 1889 Contra Costa Antioch Comment
  UC1555376  Madia sativa Jerry Powell 1988-6-28 1540 Contra Costa area along railroad west Richmond, Point Molate Comment
  CAS-BOT-BC206242  Malacothamnus fasciculatus H. M. Hall; F. M. Essig 1916-5-30 10131 Contra Costa Mt. Diablo, on the westerly side north of Pine Canyon 290 Comment
  UC2028129  Malacothamnus fasciculatus Barbara Ertter 1998-5-3 16079 a Contra Costa Wall Point Road and Emmons Canyon Road, southwest flank of Mount Diablo. Comment
  SD70001  Malacothamnus fremontii Darley F. Howe 1968-5-20 4515 Contra Costa Nortonville. Comment
  UC18798  Malacothamnus fremontii Edw. L. Greene 1892-6-20 Contra Costa Mt. Diablo Comment
  UC521714  Malacothamnus fremontii Joseph Andorfer Ewan 1933-10-15 8029 Contra Costa Local at edge of chamise stand near Sout slope flat, Mt. Diablo 1066 Comment
  RSA262369  Malacothamnus hallii Don C. Elfving 1964-4-26 62 Contra Costa North Gate Road, 3 miles from base of Mt. Diablo Comment
  CAS-BOT-BC204089  Malacothamnus hallii Lewis S. Rose 1954-6-29 54082 Contra Costa Mt. Diablo 2 1/2 mi. n. of Turtle Rock 182 Comment
  CAS-BOT-BC204090  Malacothamnus hallii Volney Rattan 1886-6-14 s.n. Contra Costa Mouth of Pine Canon [Canyon]. Foot of Mount Diablo Comment
  UCD116361  Malacothamnus hallii Don C. Elfving 1964-4-26 62 Contra Costa North Gate Road, 3 miles from base of Mt. Diablo. Comment
  CAS-BOT-BC345270  Malacothrix californica Kellogg No date on label s.n. Contra Costa Antioch Comment
  JEPS99508  Malacothrix clevelandii Mary Bowerman 1978-5-14 Contra Costa Mount Diablo. Old wagon trail to mine on E face of Eagle Peak. Comment
  UC1613944  Malacothrix floccifera Charles M. Belshaw 1935-6-24 1024 Contra Costa Sobrante Hills Comment
  UC2027747  Malus pumila Barbara Ertter 1996-11-24 15427 Contra Costa West side of Mount Diablo, Stage Road below Pine Pond in Pine Canyon. Comment
  JEPS111546  Malva nicaeensis D. G. Kelch 2005-3-13 05 .47 Contra Costa Crockett - weedy area under Zampa Bridge 4 Comment
  CDA39046  Malva parviflora D. G. Kelch 2011-6-5 11 .575 Contra Costa Carquinez Strait; South of Crockett, south of Cummings Skyway. Comment
  UCD116644  Malva parviflora John Thomas Howell; Gordon H, True 1972-6-29 48923 Contra Costa Byron Hot Springs Road southeast of Byron. Comment
  RSA0004205  Malvastrum howellii J. T. Howell 1931-5-12 6470 Contra Costa Nortonville Comment
  JEPS100091  Marah fabacea G. Smick 2003-2-25 GAS 57 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS42516  Marah fabacea W. L. Jepson 1922-5-11 9648 Contra Costa North Berkeley Hills Comment
  UC1949100  Marah fabacea Barbara Ertter 1991-6-1 10076 Contra Costa Las Trampas Regional Wilderness in hills W of Danville, steep E-facing slope at N end Rocky Ridge Trail Comment
  CHSC28456  Marah oregana Robert A. Schlising 1964-4-2 2667 Contra Costa Berkeley-Oakland Hills. Comment
  CHSC46894  Marah oregana R. A. Schlising 1964-4-14 2704 Contra Costa Berkeley/Oakland Hills. Comment
  CHSC46896  Marah oregana R. A. Schlising 1965-4-6 2775 Contra Costa Berkeley Hills. Comment
  JEPS63286  Marrubium vulgare Mrs. E. L. Mossman 1931-3-20 74 Contra Costa e Richmond (Berkeley Hills); Berkeley Hills Comment
  JEPS127047  Matricaria discoidea Lowell Ahart, Josephine Guardino 2016-4-19 20766 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  UC1103019  Meconella californica J. P. Tracy 1903-4-18 1796 Contra Costa East slope beyond Bald Peak, Berkeley Hills 304 Comment
Read comments
May 24 2011
  CDA4192  Medicago lupulina G. D. Barbe 1978-7-2 2409 Contra Costa 24th Street and Preble Court, Richmond. 0 Comment
  CDA29123  Medicago polymorpha D. G. Kelch 2006-5-7 6 .151 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  JEPS100116  Medicago polymorpha G. Smick 2003-4-1 GAS 107 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC692278  Medicago polymorpha Mary L. Bowerman 1931-4-4 640 Contra Costa 2 mi by road from west entrance (= North Gate); Mount Diablo Comment
  POM11730  Medicago polymorpha Katherine Brandegee s.n. Contra Costa Byron Hot Springs. Comment
  CAS-BOT-BC271220  Melica californica Mary L. Bowerman 1935-5-8 2975 Contra Costa Knoll on spur south of Pioneer Camp, Mount Diablo 762 Comment
  SD218256  Melica californica William J. Ferlatte, L. Maynard Moe 1970-4-27 1260 Contra Costa San Francisco Bay, Red Rock Island, near summit. Comment
  UC691168  Melica californica Mary L. Bowerman 1933-4-26 1934 Contra Costa Perkins Canyon Mount Diablo (branch between the main e ridge of North Peak and the ridge to its south) 487 Comment
  UC692468  Melica californica Mary L. Bowerman 1933-5-8 2029 Contra Costa n of Rock City (Mount Diablo); Mount Diablo Comment
  UCD86441  Melica californica Beecher Crampton 1956-5-14 3392 Contra Costa 7 miles southwest of Antioch, just east of old Nortonville. Comment
  UCD87144  Melica californica P. B. Kennedy 1916-5-1 s.n. Contra Costa Pinehurst. Comment
  SEINET190972 Image available Melica imperfecta A. A. Beetle 1941-3-28 1723 Contra Costa Near Orinda Comment
  UC691221  Melica imperfecta Mary L. Bowerman 1932-3-12 1120 Contra Costa Alamo Canyon Mount Diablo (near trail) 365 Comment
  UC162940  Melica torreyana C. F. Baker 1903-4-28 2815 Contra Costa Mitchell's Canyon; Mt. Diablo Comment
  UC1950128  Melica torreyana Barbara Ertter with John Little 1989-4-2 8111 Contra Costa Hillside Park in El Cerrito, on steep W-facing slope Comment
  JEPS112336  Melilotus indicus Dean G. Kelch and Andrew G. Murdock 2004-5-9 04 .207 Contra Costa Upper Edwards Canyon, Crockett, CA Contra Costa County, CA above Crockett Blvd. Comment
  UC407395  Melilotus indicus Ira L. Wiggins 1930-4-18 4599 Contra Costa Jersey Island Comment
  UC691474  Mentha spicata Mary L. Bowerman 1938-11-19 3733 Contra Costa Mitchell Canyon Mount Diablo (by stream); , Mitchell Canyon 228 Comment
  JEPS68981  Mentzelia affinis Edward Lee 1935-3-29 1316 Contra Costa s watershed Kirker Creek; Nortonville Comment
  UC1949288  Mentzelia affinis Barbara Ertter 1991-5-5 9773 Contra Costa Black Diamond Mines Regional Preserve S of Pittsburg, S side of Rose Hill above Nortonville Pass Comment
  RSA756364  Mentzelia affinis Barbara Ertter 1991-5-5 9773 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, south side of Rose Hill above Nortonville Pass. 366 Comment
  JEPS99554  Mentzelia dispersa Mary Bowerman 1978-6-3 Contra Costa Mount Diablo, between lower summit parking lot and road. Comment
  UC1481551  Mentzelia lindleyi Neil Havlik 1980-5-10 912 Contra Costa 3 mi E Crockett (Carquinez Scenic Drive) Comment
  JEPS99537  Mentzelia micrantha Mary L. Bowerman 1978-5-26 Contra Costa Mount Diablo, N of lower summit parking lot. Comment
  UC692627  Mentzelia micrantha Mary L. Bowerman 1934-4-21 2534 Contra Costa Muir Area Mount Diablo Comment
  UC692630  Mentzelia micrantha Mary L. Bowerman 1930-6-10 306 Contra Costa Mount Diablo, Meridian Peak summit Comment
  CAS-BOT-BC348365  Micropus californicus var. californicus Alice Eastwood 1915-5-30 4470 Contra Costa Mt. Diablo Comment
  UC1795792  Micropus californicus var. californicus Barbara Ertter, Mary Bowerman et al. 1995-5-7 14050 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, grassy flat, roadside vegetation, clay substrate. Comment
  UC88373  Micropus californicus var. californicus E. L. Greene 1886-1 Contra Costa Marsh Creek Comment
  JEPS89620  Microseris campestris Dean W. Taylor 1990-4-23 10634 Contra Costa ca. 2 mi. due w. Byron Hot Springs; San Joaquin Valley, Byron Hot Springs 7 1/2 Quad. 1964 ed. 30 Comment
  CDA29517  Microseris douglasii D. G. Kelch, Troy MacGregor 2009-5-1 9 .285 Contra Costa Carquinez Strait; Fernandez Ranch in valley bottom along Christie Rd. Comment
  CAS-BOT-BC348891  Microseris douglasii subsp. douglasii Alice Eastwood 1921-4-18 10252 Contra Costa Antioch Comment
  UC565499  Microseris douglasii subsp. douglasii H. L. Mason 1929-3-31 5142 Contra Costa Briones Valley Comment
  UC691463  Microseris douglasii subsp. douglasii Mary L. Bowerman 1931-4-11 698 Contra Costa toward mouth of Pine Canyon; Mount Diablo Comment
  UC92197  Microseris douglasii subsp. douglasii Katharine Curran Contra Costa Mount Diablo Comment
  CAS-BOT-BC348894  Microseris douglasii subsp. douglasii K. L. Chambers 1953-4-25 449 Contra Costa Balfour Road, ca. 4 mi. w. of Brentwood and 1.8 mi. e. of its junction with Antioch-Briones Valley Road. (Deer Valley Road.) On e. side of Mount Diablo Range Comment
  SEINET10761171  Microseris douglasii subsp. douglasii Barbara J. Ertter, Stu Garrett 1997-3-29 Ertter 15527 Contra Costa West side Mount Diablo, Burma Road on Long Ridge, serpentine area (already drying out after 2 months without rain). Comment
  CAS-BOT-BC349168  Microseris elegans Alice Eastwood 1914-3-14 3800 Contra Costa Byron Springs Comment
  CAS-BOT-BC7493  Microseris parvula M. K. Curran s.n. Contra Costa Antioch Comment
  CAS-BOT-BC322765  Microseris sylvatica M. K. Curran 1884-5-1 s.n. Contra Costa Antioch Comment
  UC2070514  Microseris sylvatica Barbara Ertter with David Gowen and Michael Park 2004-4-13 18357 Contra Costa Black Diamond Mines Regional Park south of Pittsburg, upper part of N-facing slope below Black Diamond Trail, opposite Rose Hill cemetery. Comment
  UCD118913  Microsteris gracilis Laurence S. Jones 1934-4-8 s.n. Contra Costa West slopes of Mt. Diablo. 609 Comment
  JEPS100144  Mimulus aurantiacus G. Smick 2003-3-13 GAS 66 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC27116  Mimulus douglasii H. M. Hall 1901-3-8 1632 Contra Costa Bollinger Creek San Francisco Bay Region Comment
  UC691570  Mimulus douglasii Mary L. Bowerman 1932-2-28 1097 Contra Costa w Blackberry Spring; Mount Diablo 609 Comment
  UC691762  Mimulus grandis Mary L. Bowerman 1930-6-10 294 Contra Costa Mineral Spring (North Road) Mount Diablo Comment
  UC1613940  Mimulus grandis Charles M. Belshaw 1935-6-24 1019 Contra Costa Sobrante Hills Comment
  UC2027721  Mimulus guttatus Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15513 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  UC886254  Mimulus latidens Lewis S. Rose 1940-4-11 40184 Contra Costa 3 mi w Byron 30 Comment
  UC691740  Mimulus nasutus Mary L. Bowerman 1933-4-9 1834 Contra Costa w fork Dannor Canyon; Mount Diablo 243 Comment
  UC691909  Mimulus nasutus Mary L. Bowerman 1933-5-9 2056 Contra Costa e Pine Saddle; Mount Diablo, Curry Creek tributary Comment
  UC691650  Mimulus rattanii Mary L. Bowerman 1933-5-31 2222 Contra Costa Juniper Camp Mount Diablo Comment
  UC1028683  Minuartia californica Herbert L. Mason 1932-3-20 6849 Contra Costa Antioch Sand Hills Comment
  UC465577  Minuartia californica Chesnut and Drew 1889-4-16 Contra Costa Martinez Comment
  RSA721746  Minuartia douglasii Barbara Ertter, Mary L. Bowerman 1995-5-7 14059 Contra Costa Three-Springs Trail on NE side of Mt. Diablo SE of Clayton. Comment
  UC54731  Minuartia pusilla J. P. Tracy 1903-4-18 1798 Contra Costa slope beyond Bald Peak; Region about San Francisco Bay, Berkeley Hills 304 Comment
  UCD102392  Moehringia macrophylla Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Bald Ridge Trail. Bald Ridge. 890 Comment
  UC2070470  Monardella douglasii Barbara Ertter with John Ginochio 2002-6-1 17941 Contra Costa Ginochio Ranch in Arroyo del Cerro on NW side of Mount Diablo, connector road between Government Road and Olofson Homestead. Comment
  UC691409  Monardella douglasii Mary L. Bowerman 1933-6-21 2327 Contra Costa slightly s Bilharan Lodge; Mount Diablo, Donner Canyon Comment
  CAS-BOT-BC220510  Monardella villosa Alice Eastwood 1915-6-21 4743 Contra Costa San Leandro Comment
  UCD125303  Monardella villosa P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  RSA0022790  Monardella villosa subsp. subserrata Katherine Brandegee 1907-7-4 s.n. Contra Costa Martinez. Comment
  RSA0034457  Monardella villosa subsp. subserrata Katherine Brandegee 1907-7-4 s.n. Contra Costa Martinez. Comment
  CAS-BOT-BC327803  Monolopia gracilens Mary L. Bowerman 1933-5-9 2057 Contra Costa Mt. Diablo, Muir Area, SW slope E of the rocks. Comment
  CAS-BOT-BC327805  Monolopia gracilens Lewis S. Rose 1935-5-16 35166 Contra Costa Mt. Diablo Comment
  UCR64590  Monolopia gracilens L. S. Rose 1935-5-16 35166 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC349609  Monolopia major Ethel Crum 1939-3-19 2083 Contra Costa Two miles west of Byron 45 Comment
  CAS-BOT-BC349611  Monolopia major Ethel Crum 1936-4-6 1741 Contra Costa Two miles west of Byron 45 Comment
  CAS-BOT-BC349614  Monolopia major Alice Eastwood 1914-3-14 3803 Contra Costa Byron Springs Comment
  CAS-BOT-BC349619  Monolopia major C. F. Baker 1903-4-27 2796 Contra Costa Byron Comment
  UC618928  Monolopia major R. F. Hoover 1938-3-25 2899 Contra Costa Lone Tree Valley Comment
  UC691658  Monolopia major Mary L. Bowerman 1933-4-15 1862 Contra Costa second ridge s Arroyo del Cerro (w of outcrop); Mount Diablo 396 Comment
  JEPS73689  Montia fontana L. R. Heckard with Wm. Hirano and Ted Niehaus 1968-3-5 1758 Contra Costa about 3 mi se of Byron (at junction of Holey Road, along Byron-Bethany Road) 7 Comment
  UC692019  Montia fontana Mary L. Bowerman 1939-3-31 3736 Contra Costa Spring in bend of road to Barbecue Terrace ((off South Road), Mount Diablo); Mount Diablo Comment
  UC56344  Muilla maritima J. Burtt Davy 1900-3-24 6527 Contra Costa Stege Western Middle California Comment
  UC3794  Muilla maritima Harley P. Chandler 1901-3-21 863 Contra Costa Concord Region of San Francisco Bay Comment
  UCD144308  Myoporum laetum G. F. Hrusa; D. Crowe 1998-5-8 14371 Contra Costa Sacramento-San Joaquin River Delta. On Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. 2 Comment
  UC480856  Myosurus minimus Katharine Brandegee 1909-4-24 Contra Costa Antioch Marsh Creek Antioch Comment
  UC650598  Myosurus minimus Ira L. Wiggins 1930-4-17 4580 Contra Costa 1/4 mi s Byron Comment
  UCD96601  Myosurus minimus D. E. Stone 1957-4-4 70 B Contra Costa On State 4, 1 mile south of Byron. Comment
  CAS-BOT-BC7110  Myosurus minimus var. sessiliflorus M. K. Curran 1884-1-1 s.n. Contra Costa Antioch Comment
  JEPS17886  Myosurus sessilis Rimo Bacigalupi with G. T. Robbins 1956-3-26 5532 Contra Costa about 2 1/2 mi s Byron (just s of S.P.R.R. crossing on rd. to Bethany, near head of Italian Slough) 6 Comment
  UC1101333  Myosurus sessilis Herbert L. Mason 1952-4-14 14264 Contra Costa 3.5 mi s of Byron Comment
  UCD96288  Myosurus sessilis H. L. Mason 1952-4-26 14269 Contra Costa 3.5 miles south of Byron. Comment
  SBBG115937  Myriophyllum sibiricum M. R. Bell 1950-10-9 Contra Costa near Concord, from stock pond on farm of E. J. Mangini Comment
  CHSC106698  Najas guadalupensis Barbara Ertter; Brad Olson 1991-9-28 10838 Contra Costa San Pablo Reservoir between Orinda and El Sobrante, in shallow water at S end of reservoir. 91 Comment
  CAS-BOT-BC259902  Nassella lepida Mary L. Bowerman 1938-6-30 3701 Contra Costa Mount Diablo. Blue Oak Flat 822 Comment
  CAS-BOT-BC259906  Nassella lepida D. E. Breedlove 1970-4-18 17447 Contra Costa At the N edge of Lafayette above Laurel Drive 243 Comment
  UC60164  Nassella lepida J. Burtt Davy 1900-3-24 6519 Contra Costa Port Richmond Comment
  POM301847  Nassella lepida Mary L. Bowerman 1935-5-1 2936 Contra Costa North Road 2 mi from North Gate Comment
  CAS-BOT-BC260131  Nassella pulchra Mary L. Bowerman 1933-5-18 2125 Contra Costa Mount Diablo. Blackberry Spring Comment
  CDA1583  Nassella pulchra D. G. Kelch 2002-5-24 2 .021 Contra Costa Carquinez Strait; 5th St. Prairie, Crockett. Comment
  UCD37583  Nassella pulchra Beecher Crampton 1955-4-11 2472 Contra Costa Contra Costa County, city of Richmond, East Shore and San Pablo Avenues. Comment
  UC2042806  Navarretia heterandra Barbara Ertter with Joanne Kerbavaz 2000-8-20 17496 a Contra Costa South side Mount Diablo, across road from Curry Point trailhead. Comment
  LA206696  Navarretia mellita John Thomas Howell; 1938-6-30 13938 Contra Costa head of Siesta Valley Comment
  JEPS116990  Navarretia nigelliformis subsp. radians David Gowen 2008-4-16 857 Contra Costa West end of Horse Valley. 146 Comment
  CAS-BOT-BC230478  Navarretia nigelliformis var. nigelliformis K. Curran 1884-6-1 s.n. Contra Costa Antioch Comment
  UC691612  Navarretia pubescens Mary L. Bowerman 1930-6-10 298 Contra Costa Oak Knoll Picnic Grounds Mount Diablo Comment
  CAS-BOT-BC233584  Navarretia pubescens John Thomas Howell 1942-7-19 17041 Contra Costa Near Deer Flat, Mount Diablo Comment
  UC2028276  Navarretia pubescens Barbara Ertter 1999-6-12 16700 Contra Costa Black Hawk Ridge Road between Knobcone Point Road and NE fork of Sycamore Creek, South side of Mount Diablo. Comment
  UCD36039  Navarretia pubescens Beecher Crampton 1949-9-11 493 Contra Costa Contra Costa County, Mount Diablo State Park, below main road, opposite Oak Knoll Picnic area. 518 Comment
  UC1607552  Navarretia squarrosa Barbara Ertter with Laura Fujii 1990-7-21 9398 Contra Costa w of Pleasant Hill (near junction of Briones Crest and Spengler trails); Briones Regional Park, Briones Hills 396 Comment
  CDA29222  Nemophila heterophylla D. G. Kelch 2006-5-7 6 .152 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  JEPS3220  Nemophila heterophylla W. L. Jepson 1923-4-22 9868 Contra Costa Mt. Diablo Vicinity of San Francisco Bay, Mt. Diablo Comment
  OBI70548  Nemophila heterophylla D. G. Kelch 2007-3-24 7 .095 Contra Costa Ozol; between Port Costa and Martinez, near old brick quarry 52 Comment
  UC1069147  Nemophila heterophylla H. S. Yates 1936-3-14 5359 Contra Costa Marsh Creek Mount Diablo Quad., Marsh Creek Comment
  UC146146  Nemophila heterophylla Joseph P. Tracy 1903-4-18 1797 Contra Costa e slope of Bald Peak San Francisco Bay Region, , Bald Peak (Berkeley Hills) 304 Comment
  UC606926  Nemophila heterophylla L. Constance, J. L. Morrison 1938-5-5 2190 Contra Costa above Deer Flat (near head of Mitchell Canyon, nw slope of Mount Diablo); nw slope Mount Diablo, nr head Mitchell Canyon 670 Comment
  UC691698  Nemophila heterophylla Mary L. Bowerman 1930-6-10 308 Contra Costa summit Mount Diablo; Mount Diablo Comment
  JEPS3142  Nemophila heterophylla Mary L. Bowerman 1931-3-7 556 Contra Costa Sloan Road w Sloan Ranch (Mount Diablo); , Sloan Road w of Sloan Ranch Comment
  POM249049  Nemophila heterophylla Lincoln Constance, J. H. Morrison 1938-5-5 2190 Contra Costa Above Deer Flat near head of Mitchell Canyon, NW slope of Mt Diablo. 671 Comment
  UC67128  Nemophila heterophylla Harley P. Chandler 1900-3-23 580 Contra Costa Briones Valley , Briones Valley (Region of San Francisco Bay) Comment
  JEPS111831  Nemophila menziesii var. menziesii D. G. Kelch 2005-3-25 05 .96 Contra Costa Fernandez Ranch Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak 115 Comment
  UC767551  Nemophila pedunculata R. F. Hoover 1938-3-5 2816 Contra Costa mouth of Kirker Creek Canyon Comment
  CAS-BOT-BC233455  Nicotiana glauca Ira L. Wiggins 1930-4-18 4604 Contra Costa East end of Jersey Island Comment
  HSC28472  Nicotiana glauca J. D. Ackerman, A. M. Montalvo 1973-12-20 123 Contra Costa 5 mi. E of Clayton Comment
  UC1084399  Nuttallanthus texanus G. Thomas Robbins 1937-4-17 132 Contra Costa near Point Richmond Comment
  UC2027913  Nymphaea Barbara Ertter 2000-9-30 17539 Contra Costa West side Mount Diablo, pond on west side of Briones-Mount Diablo Trail south of Stonegate Trail junction. Comment
  CAS-BOT-BC235130  Oemleria cerasiformis James R. Shevock 2012-8-12 40657 Contra Costa San Francisco Bay Region. Tilden Regional Park, East Bay Regional Park District. Along Grizzly Peak Trail about midway between the upper and lower trailheads 448 Comment
  CDA8361  Oenanthe sarmentosa D. G. Kelch 2004-4-3 4 .16 Contra Costa Carquinez Strait; Along Alhambra Valley Rd on moist creek bed. Comment
  CAS-BOT-BC171589  Oenothera deltoides subsp. howellii J. H. Thomas 1953-4-25 3004 Contra Costa Antioch sand hills along San Joaquin River, 2 miles west of Antioch Bridge Comment
  CAS-BOT-BC171590  Oenothera deltoides subsp. howellii J. H. Thomas 1949-4-19 314 Contra Costa Antioch sand dunes. Comment
  JEPS25159  Oenothera elata subsp. hookeri G. Thomas Robbins with John Weiler''G. Thomas Robbins (with John Weiler) 1959-5-23 4030 Contra Costa On low site at the northwest edge of Brooks Island San Francisco Bay, Richmond. Comment
  SEINET7719109  Oenothera micrantha Chesnut, Drew 1889-4-18 Contra Costa Antioch Comment
  UC2028003  Olea europaea Barbara Ertter with Amy Rusev 1998-1-17 15902 Contra Costa Edge of Lime Ridge Open Space at NW foot of Mount Diablo, around former quarry [subsequently developed] on south side of Ygnacio Valley Road. Comment
  UC1050961  Origanum majorana N. Floy Bracelin 1942-8-2 2225 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS122909  Orobanche bulbosa Adam C. Schneider 2015-5-22 936 Contra Costa Eagle Peak Trail of Mt. Diablo State Park. Comment
  CAS-BOT-BC502761  Orobanche bulbosa A. D. E. Elmer 1903-6-1 5097 Contra Costa Mount Diablo Comment
  RSA0059169  Orobanche bulbosa F. T. Bioletti 1894-5-13 11693 Contra Costa Mt. Diablo. Comment
  UC27861  Orobanche fasciculata W. H. Brewer 1862-6-20 1124 Contra Costa Hill North of Coal Mine, north of Mt. Diablo. Comment
  UC887954  Orobanche fasciculata Lewis S. Rose 1941-5-15 41243 Contra Costa Mt. Diablo, near summit. Comment
  CAS-BOT-BC499851  Orobanche fasciculata Alice Eastwood 1915-5-30 4536 Contra Costa Mt. Diablo Comment
  UC1586123  Orobanche fasciculata Barbara Ertter with Elizabeth Neese 1988-4-24 7451 Contra Costa Black Diamond Mines Regional Preserve SW of Antioch, above powerline road E of Nortonville Road. Comment
  UC2045289 Image available Orobanche fasciculata Mary L. Bowerman 1930-6-28 408 Contra Costa Meridian Peak near summit (?) Comment
  UC27898  Orobanche uniflora subsp. occidentalis J. Burtt Davy 1895-4-13 1004 Contra Costa Lafayette. Comment
  UC691748  Orobanche uniflora subsp. occidentalis Mary L. Bowerman 1935-4-22 2895 Contra Costa Ridge west of Pioneer Road (west of Old State Road); Grassy hillside with northwest exposure. Comment
  CHSC22522  Orthocarpus Robert A. Schlising 1962-4-7 2139 Contra Costa California Coast Ranges. Field along Deer Valley Road, few mi S of Antioch. Comment
  SEINET3821123 Image available Orthocarpus erianthus Lewis S. Rose 1932-3-26 32115 Contra Costa Open hillsides, Nortonville. Comment
  SEINET10549673  Orthocarpus erianthus John T. Middleton 1936-4-24 Middleton 95 D Contra Costa Deer valley. Comment
  RSA407982  Orthocarpus purpurascens M. B. Dunkle 1935-4-14 4450 Contra Costa Sycamore Valley. Intermountain. 335 Comment
  UC1618306  Osmorhiza berteroi Barbara Ertter with Travis Columbus 1990-6-10 9108 Contra Costa near stream crossing on Spengler Creek ne Briones Peak (ne corner of park, w of Pleasant Hill); Briones Regional Park, Briones Hills 182 Comment
  UC691807  Osmorhiza berteroi Mary L. Bowerman 1931-3-21 594 Contra Costa Sycamore Canyon Mount Diablo 350 Comment
  SEINET3840906  Oxalis carnosa Unknown 1976-3-25 2117 Contra Costa International Succulent Institute, 10 Corte Sombrita, between Maraga and Orinda Comment
  UC2029198  Oxalis pes-caprae Barbara Ertter 2003-2-8 18093 Contra Costa Richmond Field Station (UC-Berkeley) Comment
  UC691360  Packera breweri Mary L. Bowerman 1930-6-22 359 Contra Costa Mitchell Canyon, by trail Mount Diablo Comment
  UC1051229  Pandorea jasminoides N. Floy Bracelin 1942-9-20 2301 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC2028447  Panicum capillare Barbara Ertter with Chris Thayer 1996-10-25 15379 Contra Costa West side of Mount Diablo, North Gate Road 3 road miles below junction, near Mineral Spring Comment
  JEPS103101  Papaver californicum Mary L. Bowerman 1978-5-14 Contra Costa E face of Eagle Peak, ravine toward Twin Peaks from Back Creek Mount Diablo Comment
  RSA721592  Papaver californicum Mary L. Bowerman 1978-5-14 s.n. Contra Costa Mount Diablo. E side of Eagle Peak, old mine wagon trail up Black Canyon. Comment
  SBBG122845  Papaver californicum M. Bowerman 1978-5-14 Contra Costa old wagon trail to Mines on E face of Eagle Pk, Mount Diablo Comment
  HSC94231  Papaver heterophyllum C. Newberry 1994-4-30 7247 Contra Costa Mt. Diablo State Park, trail from Mitchell Canyon parking to Donner Creek 900 Comment
  SBBG115829  Parapholis incurva K. Brandegee 1918-5-8 Contra Costa Byron Hot Springs Comment
  UCD88471  Parapholis incurva Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  SEINET4344382 Image available Parapholis incurva Barbara Ertter, Brad Olson 1994-5-7 12764 Contra Costa S. end Pt. Molate Beach Park W. of Richmond N. of San Rafael Bridge, edge of San Fransisco Bay Comment
  UC1818917  Paspalum distichum Barbara Ertter 1995-9-30 14524 Contra Costa North bank of Cerrito Creek at end of Yosemite Avenue in El Cerrito, foot of Albany Hill; stonework bank at edge of overgrown sluggish creek. Comment
  POM63644  Pectocarya penicillata C. F. Baker 1903-4-25 2804 Contra Costa Antioch. Comment
  JEPS108356  Pectocarya pusilla David Gowen 2005-4-4 225 Contra Costa Sibley Regional Preserve. East of Round Top and ouside of the park. NE-facing slope half way down to the valley. Comment
  UC886639  Pedicularis densiflora Alice Eastwood 1922-3-17 11084 Contra Costa Mount Diablo Comment
  UCSB12518  Pedicularis densiflora Grah, Nancy 1962-4-14 Contra Costa 1.1 miles on Tappan Lane north of Tarry Lane, Orinda 243 Comment
  UCD108147  Pediomelum californicum P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  POM281783  Pellaea andromedifolia Lyman Benson 1931-3-18 2667 Contra Costa Martinez Comment
  CAS-BOT-BC71204  Pellaea andromedifolia D. E. Breedlove 1970-4-18 17431 Contra Costa the north edge of Lafayette above Laurel Drive 243 Comment
  RSA412511  Penstemon centranthifolius H. de Forest 1930-4-6 s.n. Contra Costa Antioch. Banks of San Joaquin River. Comment
  UC27592  Penstemon heterophyllus var. purdyi W. H. Brewer May 1862 1178 Contra Costa Marsh's Ranch Comment
  UC34652  Pentachaeta alsinoides Chesnut and Drew 1889-4-16 Contra Costa Martinez Comment
  POM55516  Pentachaeta exilis C. F. Baker 1903-4-28 2826 Contra Costa Marsh Creek, Mt. Diablo. Comment
  UC2029184  Pentagramma triangularis Barbara Ertter 1990-5-19 8999 Contra Costa Lafayette Ridge of Briones Regional Park N of Lafayette. Comment
  UC692564  Perideridia californica Mary L. Bowerman 1935-6-15 3134 Contra Costa Mitchell Canyon Mount Diablo (in stones of streambed at point where stream disappears) 640 Comment
  UC692566  Perideridia kelloggii Mary L. Bowerman 1935-6-28 3158 Contra Costa w meridian (flat on n side); Mount Diablo, Inner Black Hills 472 Comment
  CAS-BOT-BC419324  Persicaria punctata Brian Atwater 1978-10-24 BA- 162 Contra Costa Between Bethel Island and Holland Tract Comment
  JEPS1453  Phacelia breweri Mary L. Bowerman 1931-5-7 812 Contra Costa ne side of peak Mount Diablo, Meridian Peak (on way to saddle) Comment
  UC24300  Phacelia breweri Edw. L. Greene 1892-6-20 Contra Costa Mt. Diablo Comment
  UC691690  Phacelia breweri Mary L. Bowerman 1933-5-2 1953 Contra Costa below Pioneer Camp; Mount Diablo 762 Comment
  UC735070  Phacelia breweri Lincoln Constance, T. Morley, R. H. Shan, and W. H. Wagner 1946-4-26 3034 Contra Costa below Devil's Pulpit; Mount Diablo, Devil's Elbow 1127 Comment
  JEPS2225  Phacelia californica W. L. Jepson 1896-5-31 21044 Contra Costa Gum Grove Reservoir to Wild Cat Creek; Berkeley Hills Comment
  JEPS2229  Phacelia californica R. F. Hoover 1938-2-21 2753 Contra Costa Point Richmond Comment
  JEPS41060  Phacelia californica Rimo Bacigalupi and L. R. Heckard 1965-5-11 9085 Contra Costa in bay sw Richmond; San Francisco Bay, Brooks Island 30 Comment
  CHSC23115  Phacelia ciliata Robert A. Schlising; Botany 299 class 1962-3-24 2105 Contra Costa In disturbed orchard, along Marsh Creek Road, about 4 miles 2 of Byron. Comment
  POM65595  Phacelia ciliata C. F. Baker 1903-4-26 2904 Contra Costa Byron Comment
  UC672416  Phacelia distans Herbert L. Mason 1928-4-29 4422 Contra Costa Sycamore Canyon Mount Diablo Comment
  UC1607636  Phacelia distans Barbara Ertter 1991-5-5 9786 Contra Costa Black Diamond Mines Regional Preserve S of Pittsburg, base of steep cut on N side of Black Diamond Trail ca 1/4 mi E of pond sandstone substrate 426 Comment
  UC24350  Phacelia divaricata W. H. Brewer 1862-5-7 1057 Contra Costa summit Monte Diablo Comment
Read comments
Sep 7 2009
  JEPS2353  Phacelia divaricata W. L. Jepson 1891-6-9 21021 Contra Costa near Berkeley (e side of hills); Oakland Hills, Fish Ranch Comment
  JEPS2169  Phacelia imbricata subsp. imbricata W. L. Jepson 1918-6-5 7611 Contra Costa North Peak Mount Diablo 944 Comment
  UC691476  Phacelia nemoralis subsp. nemoralis Mary L. Bowerman 1934-4-21 2537 Contra Costa Muir Area Mount Diablo Comment
  CAS-BOT-BC154332  Phacelia phacelioides Alice Eastwood 1915-5-30 4520 Contra Costa Near type locality. Mt. Diablo Comment
  CAS-BOT-BC154336  Phacelia phacelioides Mary L. Bowerman 1935-5-8 2974 Contra Costa Mount Diablo. Muir Area 1036 Comment
  POM252665  Phacelia phacelioides H. L. Mason 1938-5-3 11749 Contra Costa Trail between Juniper Camp and Deer Flat, Mount Diablo. Comment
  JEPS101085  Phacelia tanacetifolia Dean W. Taylor 1992-4-16 12394 Contra Costa S of Byron Hot Springs, in swale draining on E margin of NE1/4 SE1/4 Section 34 45 Comment
  JEPS68952  Phacelia tanacetifolia Edward Lee 1935-3-10 1281 Contra Costa Kirker Pass, Donovan Rd. (w. watershed of Kirker Creek) Comment
  SEINET3158353  Phacelia tanacetifolia L. S. Rose 1933-4-17 33091 Contra Costa Antioch Comment
  UC881269  Phacelia tanacetifolia Alice Eastwood 1914-3-14 3804 Contra Costa Byron Springs Comment
  UC2070461  Phacelia tanacetifolia Barbara Ertter with Steve Matson 2003-3-15 18105 Contra Costa Black Diamond Mines Regional Preserve, on SW side of Rose Hill. Comment
  CAS-BOT-BC265808  Phalaris arundinacea Walter Knight; Irja Knight 1978-9-5 3205 Contra Costa Browns Island Comment
  UC50714  Phalaris minor J. Burtt Davy 1898-4-7 4258 Contra Costa Danville; Region of Mount Diablo, Danville Comment
  CDA29524  Phalaris paradoxa D. G. Kelch, Troy MacGregor 2009-5-1 9 .28 Contra Costa Carquinez Strait; Fernandez Ranch in valley bottom along Christie Rd. Comment
  JEPS72970  Phalaris paradoxa W. L. Jepson 1940-6-5 19937 Contra Costa Richmond Comment
  JEPS99588  Phalaris paradoxa Mary Bowerman 1995-7-2 Contra Costa Mount Diablo, foot [trail] from Back Canyon to Donner Canyon. Comment
  UCD89368  Phalaris paradoxa Beecher Crampton 1956-5-14 3381 Contra Costa 4.5 miles S of Antioch. Comment
  UCD89405  Phalaris paradoxa P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UC2028398  Phalaris paradoxa Barbara Ertter with Dan Norris 1998-6-18 16212 Contra Costa South Gate Road on south flank of Mount Diablo, ca. 1 mile in from park boundary, gentle S-facing grassy slope Comment
  UC963765  Phlox gracilis Herbert L. Mason 1926-3-7 2703 Contra Costa via Walnut Creek to summit to Danville to Niles Canyon; Mt. Diablo Comment
  CHSC59985  Pholistoma membranaceum J. M. Tucker 1981-4-25 4454 Contra Costa Antonio Souza Ranch southwest of Byron. Mt. Diablo Meridian. 309 Comment
  UC1950446  Pholistoma membranaceum Barbara Ertter 1992-3-8 10909 Contra Costa NE edge of Black Diamond Mines Regional Preserve, NE-heading canyon with steep loose sides ca 1/2 mi W of junction of Stewartville Trail and Frederickson Lane Comment
  UC24023  Pholistoma membranaceum J. Burtt Davy 1895-4-8 989 Contra Costa foothills Antioch Comment
  UCD120958  Pholistoma membranaceum J. M. Tucker 1981-4-25 4454 Contra Costa Antonio Souza Ranch southwest of Byron (extended Section NW quarter Sec. 31, R3E, T1S, Mt. Diablo Meridian). 309 Comment
  CAS-BOT-BC141123  Phoradendron serotinum subsp. macrophyllum Mary L. Bowerman 1931-2-22 520 Contra Costa Mount Diablo. Sycamore Canyon, head of E fork Comment
  JEPS111926  Phoradendron serotinum subsp. macrophyllum Dean G. Kelch and Andrew G. Murdock 2005-5-13 DGK 05 .235 Contra Costa Martinez. South of oil refinery along Railroad tracks in fragment of habitat. Comment
  CAS-BOT-BC141254  Phoradendron serotinum subsp. tomentosum Mary L. Bowerman 1932-10-22 1636 Contra Costa Road to Quicksilver Mine: Flats at base of N Peak. Mount Diablo Comment
  JEPS87901  Phoradendron villosum Barbara Ertter, Lynne Hosley 1992-8-29 11264 Contra Costa e Mt. Diablo (Morgan Territory Regional Preserve, along Condor Trail); Morgan Territory Regional Preserve Comment
  UC692037  Phoradendron villosum Mary L. Bowerman 1932-10-22 1636 Contra Costa flats at base of North Peak Mt. Diablo (rd. to Quicksilver Mine) Comment
  JEPS87911  Phragmites australis Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, and Amy Hiss 1991-8-18 10707 Contra Costa n Pittsburg (near confluence of Sacramento and San Joaquin Rivers, opposite Pittsburg Marina, near w end of <Browns> Island); Browns Island Comment
  POM181424  Phragmites australis I. L. Wiggins 1930-4-18 4588 Contra Costa Jersey Island Comment
  UC311199  Phragmites australis A. D. E. Elmer July 1903 4541 Contra Costa Martinez Comment
  UC692283  Pickeringia montana var. montana Mary L. Bowerman 1933-2-4 1690 Contra Costa flat e Mt. Diablo-North Peak divide; Mount Diablo 822 Comment
  CDA39576  Picrasma quassioides E. Dean, Petra Unger 2005-7-19 2700 Contra Costa Contra Costa Water District land, Byron Tract, just south of Highway 4, along Old River, on east bank. 0 Comment
  CDA15276  Picris echioides G. F. Hrusa, D. Crowe, R. York 1998-7-17 14713 Contra Costa Sacramento Delta; E end of Dow Chemical property. Pittsburg. Comment
  JEPS47895  Pinus attenuata W. L. Jepson 1923-4-22 9876 Contra Costa Mt. Diablo Mt. Diablo (rocky ridge in chaparral) Comment
  CAS-BOT-BC78544  Pinus coulteri Elizabeth McClintock 1967-10-22 4 Contra Costa Nortonville area Comment
  JEPS46806  Pinus coulteri T. H. Goodspeed 1909-11-1 Contra Costa Mt. Diablo Comment
  JEPS46810  Pinus coulteri W. L. Jepson 1931-4-5 15726 Contra Costa Nortonville Comment
  JEPS47870  Pinus coulteri W. L. Jepson 1909-6-25 3117 Contra Costa Mt. Diablo Comment
  JEPS47876  Pinus coulteri W. L. Jepson 1909-6-25 3115 Contra Costa Mitchell Canyon Mt. Diablo, Mitchell Canyon Comment
  SEINET3874454 Image available Pinus radiata James K. Detling 1963-3-21 39 Contra Costa Near Glorietta School, Orinda, California.; 0 91 Comment
  CDA39509  Piperia transversa D. G. Kelch 2005-5-23 5 .379 Contra Costa Carquinez Strait Region; Crockett; West Valona (Crockett), between railroad tracks and Pinus pinea grove. Comment
  UC881329  Plagiobothrys acanthocarpus Lewis S. Rose 1941-3-13 41037 Contra Costa 3 mi s Byron 9 Comment
  UCR265176  Plagiobothrys acanthocarpus Barbara Ertter, Jim Jokerst, Dave Magney 1989-4-5 8117 Contra Costa San Joaquin Valley, Clifton Court Forebay, c. 15 air miles southwest of Stockton 0 Comment
  RSA565113  Plagiobothrys acanthocarpus Wm. Taylor 1992-4-16 12390 Contra Costa S of Bryan Hot Springs, in swale draining on E margin of [the township and range] 46 Comment
  UC2029043  Plagiobothrys acanthocarpus Barbara Ertter 2000-3-19 16894 Contra Costa Southwest flank of Mount Diablo, east of Pine Ridge, below Wall Point Road. Comment
  UC691335  Plagiobothrys bracteatus Mary L. Bowerman 1935-6-28 3167 Contra Costa s summit (by Old Government Trail); Mount Diablo, Chase Pond 548 Comment
  UC882304  Plagiobothrys bracteatus Joseph Andorfer Ewan 1936-5-24 9698 Contra Costa w slope Bald Peak; San Pablo Ridge Comment
  POM226098  Plagiobothrys bracteatus J. T. Howell 1933-5-14 11232 Contra Costa St. Mary s College Comment
  RSA0027645  Plagiobothrys bracteatus Barbara Ertter 1998-5-3 16058 Contra Costa Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. 274 Comment
  UC1795790  Plagiobothrys bracteatus Barbara Ertter, Mary Bowerman et al. 1995-5-7 14031 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, wet ground around small pond west of road in grassy flat. 304 Comment
  UC2029139  Plagiobothrys bracteatus Barbara Ertter with Alan Prather 2003-6-7 18199 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, fenced pond in bend of east Highland Ridge Trail, 1/4 miles E of junction Stone Corral Trail. Comment
  UC78037  Plagiobothrys canescens T. S. Brandegee May 1890 Contra Costa Antioch Comment
  POM204086  Plagiobothrys canescens L. S. Rose 1933-3-29 33046 Contra Costa Pittsburg Comment
  CAS-BOT-BC277  Plagiobothrys humistratus M. K. Curran 1884-1-1 s.n. Contra Costa near Antioch Comment
  CDA40675  Plagiobothrys humistratus Jim Jokerst 1989-3-28 3060 Contra Costa Northwest of junction of Byron Hot Springs Road and Armstrong Road. Northeast of Livermore. 0 Comment
  POM368871  Plagiobothrys nothofulvus H. de Forest 1930-3-28 s.n. Contra Costa Contra Costa County Comment
  UCSC000623  Plagiobothrys nothofulvus R. C. Wilson 1935-3-19 137 Contra Costa 2 mi N.W. of Wall Pt. Wall Pt. - Mt Diablo 335 Comment
  POM64765  Plagiobothrys stipitatus C. F. Baker 1903-4-27 2799 Contra Costa Byron. Comment
  RSA6495  Plagiobothrys stipitatus D. D. Keck 1933-4-2 1995 Contra Costa Vasco road, eastern Contra Costa County, N of Vaso School. Comment
  UC573079  Plagiobothrys stipitatus var. micranthus H. L. Mason 1929-3-31 5144 Contra Costa Briones Valley Comment
  JEPS88008  Plagiobothrys stipitatus var. stipitatus Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8120 Contra Costa ca. 15 air mi. s.w. Stockton (w. & adjacent to Clifton Court Forebay); s.e. Contra Costa Co. Comment
  UC101485  Plagiobothrys stipitatus var. stipitatus Katharine Brandegee Contra Costa near Antioch Comment
  JEPS116856  Plagiobothrys undulatus David Gowen 2007-4-16 674 Contra Costa Briones Regional Park on foot trail northwest of Maricich Lagoon. Comment
  SEINET3854794 Image available Plantago bigelovii Lewis S. Rose 1933-3-29 33040 Contra Costa Nortonville. Comment
  CDA21563  Plantago coronopus D. G. Kelch 2008-9-1 8 .295 Contra Costa Carquinez Strait; 200 m W of Pacheco Slough, E of Martinez. Comment
  JEPS127674  Plantago elongata Barbara Ertter with David Gowen and Michael Park 2017-5-2 22807 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  JEPS22973  Plantago elongata Rimo Bacigalupi with G. T. Robbins and Fran Chisaki 1959-4-14 7004 Contra Costa 8 mi s Antioch (just off Deer Valley Road, Briones Valley); Briones Valley 79 Comment
  OBI11669  Plantago elongata Robert F. Hoover 1967-4-28 10516 a Contra Costa Byron Hot Springs Comment
  UC1314970  Plantago elongata R. F. Hoover 1967-4-28 10516 a Contra Costa Byron Hot Springs Comment
  UC1950081  Plantago elongata Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8128 Contra Costa alkali sink W and adjacent to Clifton Court Forebay, ca 15 airmiles SW of Stockton Comment
  JEPS111993  Plantago erecta D. G. Kelch 2004-4-11 04 .62 Contra Costa Crockett - 5th St. Prairie 85 Comment
  POM61262  Plantago erecta C. F. Baker 1903-4-25 2803 Contra Costa Antioch. Comment
  UC75129  Plantago erecta unknown 1903-4-25 2803 Contra Costa Antioch Comment
  POM61278  Plantago erecta C. F. Baker 1903-4-28 2828 Contra Costa Marsh Creek, Mt. Diablo. Comment
  JEPS86060  Plantago lanceolata William T. Hirano 1958-4-28 Contra Costa near Inspiration Point (Wildcat Creek Road, San Pablo Ridge e of Berkeley); San Pablo Ridge 304 Comment
  CDA37397  Plantago major D. G. Kelch, Mike Perlmutter 2011-9-23 11 .761 Contra Costa Antioch. Dow Wetlands. Comment
  UC1192028  Plantago major Malcolm A. Nobs and S. Galen Smith 1949-7-8 947 Contra Costa 4 mi. n. Kingston (Otto's Black Bass Resort); Otto's Black Bass Resort Comment
  SJSU7798  Plantago subnuda G. A. Samuelson 1955-5-22 Contra Costa McAvoy Boat Harbor, McAvoy Comment
  UCD124562  Plantago subnuda Ann F. Johnson 1978-6-30 AN- 57 Contra Costa along edge of San Joaquin River, PG and E.-site, Antioch Dunes. Comment
  JEPS112002  Platanus racemosa D. G. Kelch 2003-8-13 03 .122 Contra Costa Arroyo del Hambre Along Alhambra Creek E of Mt Wanda. w/ AGM 74 Comment
  CAS-BOT-BC6458  Platystemon californicus Mary Katherine (Mrs.) Brandegee 1889-4-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC91608  Platystemon californicus James McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  UC101593  Platystemon californicus Katharine Brandegee 1907-5-5 e Contra Costa between Antioch and Marsh Creek; between Antioch and Marsh Creek Comment
  CAS-BOT-BC91600  Platystemon californicus Mary L. Bowerman 1935-4-17 2828 Contra Costa Mount Diablo. West road 2 miles from entrance, just west of chaparral. 237 Comment
  UC692174  Platystemon californicus Mary L. Bowerman 1932-3-23 1133 Contra Costa rocky outcrop overlooking Donner Canyon, Mount Diablo; Mount Diablo 304 Comment
  JEPS100158  Plectritis brachystemon G. Smick 2003-4-3 GAS 119 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  PASA293  Plectritis ciliosa Annetta Carter 1929-3-31 Contra Costa Near Clayton Comment
  JEPS12782  Plectritis macrocera Rimo Bacigalupi with G. T. Robbins 1955-5-4 4975 Contra Costa s of and above Nortonville ((site)) 304 Comment
  JEPS14517  Plectritis macrocera L. T. Dempster 1956-5-26 1002 Contra Costa above Overhill Court (Orinda); Orinda Comment
  UC28871  Plectritis macrocera Jos. Burtt Davy 1901-4-21 Contra Costa Wildcat Canyon Comment
  UC55888  Plectritis macrocera H. M. Hall 1900-3-23 Contra Costa San Francisco Bay Region, San Pablo Creek San Pablo Creek; San Francisco Bay Region, San Pablo Creek Comment
  UC691523  Plectritis macrocera Mary L. Bowerman 1933-4-15 1866 Contra Costa Canyon s of Arroyo del Cerro (Mount Diablo); Mount Diablo 411 Comment
  UC1112203  Pleuropogon californicus Peter H. Raven with G. Thomas Robbins 1956-4-28 9042 Contra Costa just e of to Martinez (along State Hwy 4) Comment
  SACT001771  Pleuropogon californicus Peter Kamb, Francia Chisaki 1951-4-14 Contra Costa Annual, the several ascending stems decumbent at base. Growing in wet muck of swale. margins of small pond 0.2 miles south of junction of highway 4 and 21, 7 miles north of Walnut Creek. Comment
  CAS-BOT-BC260943  Pleuropogon californicus var. californicus W. H. Brewer 1862-5-1 1043 Contra Costa Walnut Creek Comment
  CAS-BOT-BC260945  Pleuropogon californicus var. californicus Ynes Mexia 1929-4-21 2388 Contra Costa Junction of Franklin Canyon Comment
  CAS-BOT-BC260948  Pleuropogon californicus var. californicus Peter H. Raven; G. Thomas Robbins 1956-4-28 9042 Contra Costa Just east of junction to Martinez along State Highway 4 Comment
  UCD90185  Pleuropogon californicus var. californicus R. Tofsrud 1946-4-1 s.n. Contra Costa 1/2 mile south of Pacheco. Comment
  CDA8487  Pluchea odorata D. G. Kelch, A. G. Murdock 2004-7-9 4 .311 Contra Costa Carquinez Strait Region; Pacheco Marsh. Pacheco Hill Marsh west of Pacheco Slough. Comment
  JEPS78623  Pluchea odorata var. odorata Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3284 Contra Costa Browns Island, Botany Cove Comment
  UCD159502  Pluchea odorata var. odorata D. S. Park 2010-9-11 251 -1 Contra Costa Waterfront Rd. Growing in ditch along roadside. Disturbed. Wet. 5 Comment
  CAS-BOT-BC246615  Poa howellii Edward Lee 1936-4-19 2007 Contra Costa Northeast slope of the island. Red Rock, San Francisco Bay Comment
  CAS-BOT-BC246644  Poa howellii John Thomas Howell 1933-5-14 11256 Contra Costa Hills east of St. Mary's College Comment
  UC697142  Poa howellii Mary L. Bowerman 1933-6-3 2247 Contra Costa summit Mt Diablo (ridge n of lower junction of 1-way rds) Comment
  UC912661  Poa howellii Herbert L. Mason 1928-4-15 4350 Contra Costa e end Moraga Ridge Comment
  UCD91141  Poa howellii G. L. Stebbins Jr. 1936-4-18 1539 Contra Costa head of Curry Canyon, SE side of Mt. Diablo. Comment
  CAS-BOT-BC246649  Poa howellii Jos. Burtt Davy 1899-4-19 7841 Contra Costa Claremont Canon [Canyon] Comment
  POM300627  Poa howellii Mary L. Bowerman 1933-4-22 1897 Contra Costa Inner Black Hills just west of Cave Point Comment
  UC692417  Poa secunda subsp. secunda Mary L. Bowerman 1935-4-19 2859 Contra Costa near Turtle Rock (hillside opposite side of rd); Mt Diablo 457 Comment
  UC692472  Poa secunda subsp. secunda Mary L. Bowerman 1935-5-18 3028 Contra Costa n of summit parking area Meridian Peak; Mt Diablo 1036 Comment
  UCD36915  Poa secunda subsp. secunda Beecher Crampton 1956-5-14 3387 Contra Costa 6.7 miles SW of Antioch, along ridge between old coal mining towns of Somersville and Nortonville. Comment
Read comments
Jul 1 2011
  SEINET8732915 Image available Pogogyne douglasii Leo Koch 1940-1 1002 Contra Costa Along railroad tracks, saline flat two miles south of San Rafael Ferry dock. Comment
  UC1795893  Pogogyne serpylloides Barbara Ertter, Lisa Schultheis 1995-4-27 14017 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; head of west facing scrub-filled draw (east of golf-course). 182 Comment
  JEPS128782  Pogogyne serpylloides Kevin Hintsa 1999-5-25 Contra Costa Mount Diablo State Park, on Meridian Ridge Road a few yards from Deer Flat. Comment
  RSA0068483  Pogogyne serpylloides Katie Gallagher, Nick Jensen 2014-4-26 192 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  UC762113  Pogogyne zizyphoroides R. F. Hoover 1941-4-12 4842 Contra Costa 2 miles S of Antioch Comment
  CDA23065  Polycarpon tetraphyllum D. G. Kelch, D. A. Weinstein 2008-5-5 8 .091 Contra Costa Carquinez Strait; Richmond. W Chevy s Hill. N parking lot of Hilltop Mall. Comment
  UC692146  Polygonum amphibium Mary L. Bowerman 1935-9-13 3338 Contra Costa Hidden Pond Mount Diablo Comment
  UC1192327  Polygonum amphibium var. stipulaceum Malcolm A. Nobs and S. Galen Smith 1949-7-7 937 Contra Costa Webb Island Sacramento Delta peat lands (edge of drainage ditch) Comment
  JEPS99992  Polygonum arenastrum G. Smick 2003-5-8 GAS 176 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA74882  Polygonum arenastrum Elroy Robinson 1935-9-14 s.n. Contra Costa Martinez Comment
  CDA9497  Polygonum aviculare D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .222 Contra Costa Byron Airport. Comment
  JEPS95765  Polygonum ramosissimum Dianne Lake 1999-10-5 Contra Costa NW end of wetland at NE corner of Plymouth and Hillcrest, 1 block N of E 18th St. Antioch 3 Comment
  UC1478303  Polypodium Alan R. Smith with Tom Lemieux 1981-11-19 825 Contra Costa n slope Mt. Diablo (creekside ravine along North Gate Rd, 3.6 mi w of (below) Park HQ (South Gate Rd. junction)); Mt. Diablo State Park 640 Comment
  UC1446058  Polypodium calirhiza Alan Smith with Ed Lee 1979-4-25 730 Contra Costa n side Mt. Diablo Peak (trail beyond Devil's Elbow toward saddle between Mt. Diablo and North Peak) 1066 Comment
  UC1948930  Polypodium calirhiza William J. Ferlatte, L. Maynard Moe 1970-4-27 1235 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC692122  Polypodium calirhiza Mary L. Bowerman 1933-12-2 2478 Contra Costa rocks by Alder Canyon Alder Canyon; Mt. Diablo 533 Comment
  JEPS79616  Polypodium calirhiza Edward Lee 1979-4-26 Contra Costa prospector's jeep trail Devil's Elbow; Mt. Diablo Comment
  UC692382  Polypogon monspeliensis Mary L. Bowerman 1932-8-27 1521 Contra Costa spring s of Turtle Rock Mount Diablo; , spring s of Turtle Rock Comment
  UCD91255  Polypogon monspeliensis Brandegee 1916-5-9 s.n. Contra Costa Byron Springs. Comment
  UCD91299  Polypogon monspeliensis Beecher Crampton 1959-9-3 5453 Contra Costa Contra Costa County, 2 miles north of city of Orinda, Bear Creek. Comment
  UC2028386  Polypogon viridis Barbara Ertter 1998-6-20 16256 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, wet margin of Willow Spring Pond south of Ginder Gap Comment
  UC606764  Polystichum munitum Edward Lee 1936-4-19 1983 Contra Costa se slope of island Red Rock; San Francisco Bay Comment
  JEPS100004  Populus fremontii A. Langston 2003-9-16 AL 91 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC267113  Potamogeton Walter Knight; L. R. Heckard; B. Johnson 1978-9-28 3272 Contra Costa Mouth of Crooked Slough, Browns Island Comment
  UC2028534  Potamogeton foliosus Barbara Ertter 2000-9-30 17531 Contra Costa West side Mount Diablo, pond on China Wall Road ca 1/2 mile NW of Macedo Ranch staging area. Comment
  NY436345  Potentilla frondosa E. L. Greene 1889-5-12 s.n. Contra Costa Comment
  JEPS112093  Prunus cerasifera D. G. Kelch 2005-1-21 05 .5 Contra Costa Crockett - West Valona Collected along railroad tracks in West Valona across from the decommissioned sewage treatment plant. 8 Comment
  UC1784905  Prunus dulcis Barbara Ertter, Chris Thayer 1995-4-25 s. n. Contra Costa Sycamore Creek on SE foot of Mount Diablo Comment
  UC1819021  Prunus dulcis Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14642 Contra Costa Little Pine Creek at northwest foot of Mt. Diablo, along trail connecting North Gate Road to Castle Rock Road, Diablo Foothills Regional Park; packed ground of trailside. Comment
  CAS-BOT-BC154628  Prunus subcordata Peter H. Raven; H. L. Mason; R. Ornduff; et al. 1957-4-11 10626 Contra Costa Curry Canyon 4.0 mi. s. of Recreation Ground Comment
  JEPS112071  Prunus virginiana subsp. demissa A. G. Murdock 2004-5-28 268 Contra Costa Pinole Peak 205 Comment
  UC1614254  Prunus virginiana var. demissa Charles M. Belshaw 1935-6-10 695 Contra Costa Morgan Territory Road Comment
  JEPS111514  Pseudognaphalium californicum D. G. Kelch 2005-5-13 05 .277 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 66 Comment
  JEPS75547  Pseudognaphalium californicum P. F. Yorks 1975-7-5 467 Contra Costa ca 1.5 mi s Bear Creek Road (on Hampton Road in Hampton Road Natural Reserve, n of Briones Reservoir) 180 Comment
  UC2013024  Pseudognaphalium californicum Barbara Ertter 1990-5-19 8994 Contra Costa Lafayette Ridge of Briones Regional Park N of Lafayette. Comment
  HSC5690  Pseudognaphalium luteoalbum Greg Bos 1963-4-10 71 Contra Costa Richmond, El Cerrito Hills. E and, W slope 76 Comment
  JEPS111533  Pseudognaphalium stramineum D. G. Kelch 2005-5-5 05 .217 Contra Costa Point Pinole - Giant Marsh Giant Salt Marsh 3 Comment
  UC1795807  Pseudognaphalium stramineum Barbara Ertter, Drew Hansen 1995-3-28 13936 Contra Costa Chevron oil refinery in northwest Richmond off of Castro St. edge of levees thru created bioremediation marsh south of Wildcat Creek. Comment
  UC1051469  Psilocarphus brevissimus var. brevissimus Herbert L. Mason 1952-4-14 14266 Contra Costa 3.5 mi s Byron Comment
  JEPS111756  Psilocarphus tenellus D. G. Kelch 2005-5-1 05 .204 Contra Costa Crockett - Edwards Canyon 100 Comment
  JEPS12780  Psilocarphus tenellus Rimo Bacigalupi 1955-5-4 4970 Contra Costa just se of old tunnel of the Tunnel Road; summit Oakland Hills 426 Comment
  RSA15420  Ptelea baldwinii subsp. crenulata L. S. Rose 1936-4-24 36147 Contra Costa Marsh Creek. 6 miles E of Clayton. 61 Comment
  RSA448385  Ptelea baldwinii subsp. crenulata John Doyen, Glenn Gorelick 1966-4-22 s.n. Contra Costa Russelman Park. Mt. Diablo State Park. Comment
  CAS-BOT-BC148638  Ptelea crenulata Edw. L. Greene 1886-5-24 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC148647  Ptelea crenulata Volney Rattan 1887-5-22 s.n. Contra Costa Alhambra Val. Comment
  JEPS40166  Ptelea crenulata H. L. Mason 1928-3-31 Contra Costa Mt. Diablo Comment
  JEPS40171  Ptelea crenulata W. L. Jepson 1923-6-10 9993 Contra Costa Upper Marsh Creek; Mt. Diablo Comment
  SDSU9372  Ptelea crenulata D. F. Howe 1968-5-20 4516 Contra Costa Nortonville. Comment
  UC17374  Ptelea crenulata Prof. W. L. Jepson 1898-10-18 Contra Costa Mt. Diablo Comment
  UC17377  Ptelea crenulata Ivar Tidestrom Jun 1895 Contra Costa Edwards Canyon Comment
  UC194966  Ptelea crenulata H. M. Hall 1916-8-17 10277 Contra Costa 6 mi s Antioch; Upper Horse Valley 213 Comment
  UC306740  Ptelea crenulata A. D. E. Elmer May 1903 4327 Contra Costa Mount Diablo Comment
  UC868043  Ptelea crenulata Lewis S. Rose 1940-4-30 40249 Contra Costa 6 mi e Clayton; Marsh Creek 45 Comment
  UC909620  Ptelea crenulata Kay H. Beach 1941-4-30 1080 Contra Costa about 7 mi w Byron (n bank along Marsh Creek); Marsh Creek 30 Comment
  UCD102396  Ptelea crenulata Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Bald Ridge Trail. Bald Ridge. 860 Comment
  UCD116921  Ptelea crenulata P. B. Kennedy 1929-4-25 s.n. Contra Costa Marsh Creek Road. Comment
  CAS-BOT-BC148633  Ptelea crenulata H. M. Hall 1910-8-17 10277 Contra Costa Upper Horse Valley (6 mi. s. of Antioch) 213 Comment
  SD69961  Ptelea crenulata Darley Howe 1968-5-20 Contra Costa 8 miles north of Alameda-Contra Costa County line on Morgan Territory Road Comment
  UC2062647  Ptelea crenulata Barbara Ertter with Steve Matson 2003-11-11 Contra Costa Mount Diablo State Park, Deer Flat Road on north side of Moses Rock Ridge. Comment
  UC2062673  Ptelea crenulata Barbara Ertter 2005-11-6 18655 Contra Costa Mount Diablo State Park, road between Deer Flat and Deer Flat Creek crossing. Comment
  UCSB4881  Ptelea crenulata Keator, Glenn 1959-7-1 Contra Costa Laurel camp on Mt. Diablo Comment
  CAS-BOT-BC76619  Pteridium aquilinum Mary L. Bowerman 1930-8-24 426 Contra Costa Mount Diablo - Mitchell Canyon, lower trail (west of stream) 259 Comment
  UC606766  Pteridium aquilinum var. pubescens Edward Lee 1936-4-19 2016 Contra Costa e slope of island Red Rock; San Francisco Bay Comment
  UC6916  Pterostegia drymarioides W. L. Jepson 1891-5-23 Contra Costa Mt. Diablo Comment
  CDA33808  Pterostegia drymarioides D. G. Kelch 2010-5-15 10 .117 Contra Costa Mt. Diablo. Trail from Juniper Camp to Deer Flat. 0 Comment
  UC1738832  Puccinellia simplex Dean W. Taylor 1990-4-10 10619 Contra Costa Byron Hot Springs Road, 1 mile S of Holey Road 24 Comment
  CAS-BOT-BC239827  Puccinellia simplex Niall McCarten; V. I. Dains 1986-6-1 03261200 9 Contra Costa (Highline reach 12-15) near Brushy Cr., empties into Clifton Ct. Forebay Comment
  UC1748007  Quercus E. Dean, M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 657 Contra Costa Fossil Ridge, just below and 0.1 mi along fire rd that begins at the parking lot SE of Rock City and climbs onto Fossil Ridge in southeasterly direction Mount Diablo State Park 487 Comment
  UC691281  Quercus X eplingii Mary L. Bowerman 1935-11-30 3351 Contra Costa sw of Gibraltar Rock; Mount Diablo, Fossil Ridge Comment
  POM301006  Quercus X morehus Mary L. Bowerman 1935-10-26 3349 Contra Costa 0.1 mile by road above Silver Spring, 50 feet from road. 860 Comment
  UC691317  Quercus X morehus Mary L. Bowerman 1933-6-14 2278 Contra Costa Inner Black Hills, w of 1970 Mount Diablo Comment
  CDA32855  Quercus agrifolia D. G. Kelch 2010-10-5 10 .416 Contra Costa The Delta; Just east of Antioch bridge. Comment
  UC691326  Quercus agrifolia Mary L. Bowerman 1935-4-22 2881 Contra Costa 2 mi from West road (= North Rd.) entrance (N. Gate) (on s side of road); Mount Diablo Comment
  UCD17437  Quercus agrifolia E. Dean; M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 659 Contra Costa California. Contra Costa County: Mount Diablo State park, along Knobcone Point Road, just east of balancing rock, upslope of road. 548 Comment
  CDA20379  Quercus agrifolia var. agrifolia P. Akers 2002-5-11 s.n.- 1 Contra Costa Northern California; Mt Diablo Summit Trail at water tank picnic area. 873 Comment
  OBI42731  Quercus chrysolepis Cathy Peterson 1971-11-6 4 Contra Costa Mount Diablo, south side, approx 10 yds from Rock City entrance 610 Comment
  UC2029049  Quercus chrysolepis Barbara Ertter with Linda Vorobik 2000-1-9 16892 Contra Costa Las Trampas Regional Wilderness in East Bay Hills west of Danville' Comment
  CAS-BOT-BC86642  Quercus douglasii Brandegee s.n. Contra Costa unspecified Comment
  UC521666  Quercus douglasii Joseph Andorfer Ewan 1933-10-15 8028 Contra Costa Mt. Diablo 1066 Comment
  SEINET14301650 Image available Quercus douglasii Unknown Contra Costa Near North Gate Rd., Mt. Diablo Comment
  UC1135564  Quercus durata R. C. Wilson 1935-3-29 164 Contra Costa 1 mi w Deer Flat; Mount Diablo 685 Comment
  CDA37340  Quercus garryana D. G. Kelch 2010-10-31 10 .445 Contra Costa South Pinole Peak. Comment
  CHSC83237  Quercus garryana E. Dean; M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 656 Contra Costa Mount Diablo State park, Fossil Ridge, along fire road that begins at the parking lot southeast of Rock City and climbs onto Fossil Ridge in southeasterly direction, ca. 0.1 mile from Rock City, slightly downslope of road. 487 Comment
  UCD130592  Quercus garryana E. Dean; M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 654 Contra Costa California. Contra Costa County: Mount Diablo State park, Fossil Ridge, along fire road that begins at the parking lot southeast of Rock City and climbs onto Fossil Ridge in southeasterly direction, ca. 0.1 mile from Rock City, slightly downslope of road. 487 Comment
  UCD17419  Quercus garryana E. Dean; M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 655 Contra Costa California. Contra Costa County: Mount Diablo State park, Fossil Ridge, just upslope of South Gate Rd., just west of Gibraltar Rock, southeast of Rock City. 487 Comment
  UCD17420  Quercus garryana E. Dean; M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 656 Contra Costa California. Contra Costa County: Mount Diablo State park, Fossil Ridge, along fire road that begins at the parking lot southeast of Rock City and climbs onto Fossil Ridge in southeasterly direction, ca. 0.1 mile from Rock City, slightly downslope of road. 487 Comment
  CAS-BOT-BC94292  Quercus garryana Mary L. Bowerman 1935-11-30 3351 Contra Costa In draw SW of Gibraltar Rock, Fossil Ridge Comment
  JEPS111966  Quercus ilex D. G. Kelch 2005-5-13 05 .237 Contra Costa Martinez Martinez. South of oil refinery along Railroad tracks in fragment of habitat 28 Comment
  CDA23104  Quercus kelloggii D. G. Kelch, D. A. Weinstein 2007-10-11 s.n. Contra Costa Carquinez Strait; Canada de Cierbo, just S of Crockett. Comment
  UCSB11595  Quercus kelloggii N. Grah 1962-4-14 110 Contra Costa 1.1 MI N OF TARRY LANE ON TAPPAN LANE ORINDA 243 Comment
  UC5607  Quercus kelloggii unknown 1800-1 Contra Costa Comment
  JEPS111962  Quercus lobata D. G. Kelch 2004-4-3 04 .50 Contra Costa Ridge east of Martinez - Vine Hill. West of 680. North of highway 4. 44 Comment
  UC691280  Quercus lobata Mary L. Bowerman 1930-11-25 498 Contra Costa s of South Gate; Mount Diablo Comment
  UCD46831  Quercus lobata John M. Tucker 1941-8-28 384 Contra Costa Beside road up Curry Canyon, 3 miles south of junction with the road from Clayton to Byron, Contra Costa County, California. Comment
  CDA29568  Quercus parvula var. shrevei D. G. Kelch, Suzanne Latham, Matt Beyers 2009-6-3 9 .332 Contra Costa East Bay.; El Sobrante Ridge at end of Silver Belt Dr. on Miocene chert outcrop. Comment
  UCD17415  Quercus wislizeni E. Dean; with B. Ertter, J. M. Tucker, and K. Chaney 2000-9-10 651 Contra Costa California. Contra Costa County: City of El Sobrante; El Sobrante Ridge, upslope of the terminus of Heavenly Ridge Rd., junction of Heavenly Ridge Trail and Manzanita Trail. 213 Comment
  UCD47498  Quercus wislizeni John M. Tucker 1946-4-4 1392 Contra Costa Ca. 100 yards northwest of intersection of Grizzly Peak Boulevard and road to Easport, Oakland hills, Contra Costa County, California. 365 Comment
  UC584417  Rafinesquia californica Univ. of Calif., Hort. Genetics 1937-1 564 Contra Costa Briones Hills Comment
  UC691446  Rafinesquia californica Mary L. Bowerman 1930-6-14 327 Contra Costa little below summit Meridian Peak; Mount Diablo, little below summit of Meridian Peak Comment
  UC691455  Rafinesquia californica Mary L. Bowerman 1935-5-16 2997 Contra Costa near the s boundary Russelman Park; Mount Diablo, Russelman Park 381 Comment
  UC1606299  Ranunculus aquatilis var. capillaceus Barbara Ertter with Lynne Hosley and Sid Cowles 1992-6-7 11085 Contra Costa pond in quarry e Round Top; Oakland Hills, Sibley Volcanic Regional Preserve Comment
  POM270021  Ranunculus aquatilis var. capillaceus Mary L. Bowerman 1933-3-18 1754 Contra Costa Pool W of Turtle Rock (can be seen from top of rock) covering a considerable area of the bottom of the dried up pool Comment
  RSA132889  Ranunculus aquatilis var. capillaceus Simon Simonian 1954-8-24 1311 a Contra Costa Entersprise Canal, east-west section crossing of McKinley Ave west of McDonough Ave., 2 miles north of Centerville. Main canal. Comment
  RSA0029781  Ranunculus aquatilis var. subrigidus Barbara J. Ertter, Alan Prather 2003-6-7 18190 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, pond NE of main trailhead. Comment
  POM268440  Ranunculus californicus Mary L. Bowerman 1930-6-5 246 Contra Costa W road 5.8 miles fron entrance to Park, Mt Diablo, Contra costa County Comment
  RSA399401  Ranunculus californicus H. de Forest 1930-3-28 s.n. Contra Costa [Unspecified] Comment
  POM268399  Ranunculus canus Lyman Benson 1931-3-18 2655 Contra Costa Mt. Diablo near Danville; Mt. Range: Mt. Diablo; Watershed: Walnut Creek 152 Comment
  UC635097  Ranunculus canus var. canus H. L. Mason 1929-3-15 5055 Contra Costa on summit of hill east of Nortonville Comment
  UC854399  Ranunculus hebecarpus Lewis S. Rose 1940-4-11 40180 Contra Costa 6 mi se Clayton; Marsh Creek 60 Comment
  UC2028146  Ranunculus hebecarpus Barbara Ertter 1998-4-4 15968 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, and Indian Valley School. Comment
  UC9443  Ranunculus hebecarpus W. H. Brewer 1862-5-6 1049 Contra Costa near Camp 70; Monte Diablo Comment
  JEPS99975  Ranunculus muricatus G. Smick 2003-4-29 GAS 147 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1618351  Ranunculus muricatus Barbara Ertter, Chris Thayer 1993-5-7 11716 Contra Costa e of Tilden Park (1/2 mi n of Vollmer (=Bald)Peak in East Bay Municipal Utiliteis District land); East Bay Municipal Utiliteis District land 304 Comment
  RSA85297  Ranunculus occidentalis var. ultramontanus F. W. Peirson 1925-7-1 6171 Contra Costa Wood borders, State Line, Lake Tahoe Comment
Read comments
Feb 10 2013
  UC2027957  Ranunculus sceleratus Barbara Ertter with Joanne Kerbavaz 2000-8-20 17499 Contra Costa South side Mount Diablo, spring feeding Chase Pond. Comment
  RSA0027717  Raphanus raphanistrum Barbara Ertter, R. K. Brummitt 1998-5-13 16134 Contra Costa North Gate Road on west side of Mount Diablo, hairpin turn opposite Angel Kerley trailhead. 579 Comment
  JEPS78175  Raphanus sativus Gary W. Zamzow 1973-1-26 124 Contra Costa 300 m. s. of Central Ave. overpass & 100 m. w. of Hoffman Blvd. Richmond (landfill at edge of Bay) Comment
  CDA23628  Rhamnus alaternus D. G. Kelch 2007-9-8 7 .569 Contra Costa Carquinez Strait; Pinole Valley Park. Comment
Read comments
Apr 29 2013
  CDA29170  Rhamnus alaternus D. G. Kelch 2008-6-1 8 .219 Contra Costa Carquinez Strait; Rodeo Shore. Comment
  UC2062667  Rhamnus alaternus Barbara Ertter with David Gowen 2006-4-14 18667 Contra Costa Lime Ridge Open Space (City of Concord) at NW foot of Mount Diablo, SE side of Ygnacio Valley Road. Comment
  JEPS75497  Rhamnus californica P. F. Yorks 1975-5-31 424 Contra Costa ca 1.6 km s Bear Creek Road on Hampton Road in Hamption Natural Reserve (n of Briones Reservoir) 180 Comment
  JEPS112066  Rhamnus californica subsp. californica D. G. Kelch 2003-3-21 03 .69 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 2 miles west of Martinez Contra Costa County CA. Grassy hill above cottonwood tree. Just south of end gate of Carquinez Scenic Drive 40 Comment
  UC692581  Rhamnus crocea Mary L. Bowerman 1930-6-22 360 Contra Costa Mitchell Canyon Mount Diablo Comment
  UC1121885  Rhamnus ilicifolia R. C. Wilson 1935-2-27 117 Contra Costa 2 mi s Clayton; Mt. Diablo Quad. 259 Comment
  JEPS49753  Ribes californicum Rimo Bacigalupi, and Alice Howard, and Paul Hutchison 1967-3-29 9223 Contra Costa 1/4 m above road leading to Nike Station (beside Bolinger Creek) 335 Comment
  UC1127406  Ribes californicum R. W. Lundh 1932-8-25 143 Contra Costa Mt. Diablo Mt. Diablo Quadrangle Comment
  JEPS111984  Ribes californicum var. californicum D. G. Kelch 2004-3-5 04 .12 Contra Costa Sky Ranch Dutra Fire Road. Franklin Canyon 90 Comment
  JEPS116744  Ribes divaricatum var. pubiflorum David Gowen 2007-3-22 666 Contra Costa Huckleberry Preserve at the south end of the parking lot. Comment
  CAS-BOT-BC168923  Ribes malvaceum Alice Eastwood; John Thomas Howell 1936-4-19 2140 Contra Costa Nortonville Comment
  CAS-BOT-BC168925  Ribes malvaceum John Thomas Howell 1926-3-7 1667 Contra Costa Mt. Diablo Comment
  UC583115  Ribes malvaceum Alice Eastwood, John Thomas Howell 1936-4-19 2140 Contra Costa Nortonville Comment
  JEPS79394  Ribes menziesii Edward Lee with Annetta Carter 1936-5-24 2167 Contra Costa 10 mi from Marsh Creek Road; Mt. Diablo, Morgan Territory Comment
  UC1127445  Ribes menziesii H. S. Yates 1936-3-14 5364 Contra Costa 2 1/2 mi sw Round Valley; Mt. Diablo Quadrangle Comment
  UC691266  Ribes menziesii Charles Fakler 1944-8-4 3897 Contra Costa Juniper Camp area Mount Diablo Comment
  UC692435  Ribes menziesii Mary L. Bowerman 1933-6-3 2248 Contra Costa summit Meridian Peak (n side); Mt. Diablo 1127 Comment
  CAS-BOT-BC206017  Ribes menziesii John Thomas Howell 1980-4-10 53367 Contra Costa Morgan Territory east of Mt. Diablo Comment
  UCSB26492  Ribes sanguineum var. glutinosum Keefe, Joseph 1967-3-20 Contra Costa along Huckleberry Trail; 0.5 mile east of Skyline boulevard; near intersection with Grizzly Park Boulevard; east of Berkeley 274 Comment
  CAS-BOT-BC362962  Rigiopappus leptocladus Mary L. Bowerman 1931-4-4 669 Contra Costa Mount Diablo. West of Turtle Rock Comment
  POM301016  Rigiopappus leptocladus Mary L. Bowerman 1935-4-22 2890 Contra Costa Ridge west of Pioneer Road (west of Old Stage Road). 854 Comment
  JEPS111864  Rorippa nasturtium-aquaticum D. G. Kelch 2004-4-24 04 .98 Contra Costa Ca ada del Cierbo Upper Ca ada de Cierbo on fire road to cow barn along Cummings Skyway 70 Comment
  UC691057  Rorippa nasturtium-aquaticum Mary L. Bowerman 1930-6-5 244 Contra Costa West Road 5.8 mi from entrance Mount Diablo (West Road = North Road) Comment
  JEPS78605  Rorippa palustris var. occidentalis Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3278 Contra Costa Crooked Slough Browns Island, Crooked Slough Comment
  CDA23621  Rosa gymnocarpa D. G. Kelch, D. A. Weinstein 2008-4-15 8 .046 Contra Costa Carquinez Strait; S Port Costa along Mckewen Rd. Comment
  UC2028227  Rosa spithamea Barbara Ertter 1998-12-6 16470 Contra Costa Rock City area on southwest side Mount Diablo. Comment
  CAS-BOT-BC147152  Rubus laciniatus Walter Knight; Bill Burley 1979-8-18 3445 Contra Costa Browns Island, Point Emmett Comment
  CAS-BOT-BC158774  Rubus ursinus Roxana S. Ferris 1924-4-13 4079 Contra Costa Mitchell Canyon, Mt. Diablo Comment
  UC692155  Rumex acetosella Mary L. Bowerman 1935-5-18 3016 Contra Costa road above Indian Ceremonial Springs (roadbank at hairpin turn); Mount Diablo Comment
  UC2029020  Rumex californicus Barbara Ertter 1999-7-17 16766 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, Wildcat Creek Trail between Rifle Range Road and boundary with Tilden Regional Park. Comment
  UC1618384  Rumex conglomeratus Barbara Ertter, Diane Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10698 Contra Costa opposite of Pittsburg Marina (in center of w end of Browns Island n of Pittsburg near confluence of Sacramento and San Joaquin Rivers); Browns Island Comment
  CAS-BOT-BC421736  Rumex conglomeratus Walter Knight 1979-6-15 3379 Contra Costa Botany Cove, Browns Island. Comment
  UCD144311  Rumex crassus G. F. Hrusa; D. Crowe 1998-5-8 14361 Contra Costa Sacramento-San Joaquin River Delta. At east end of Dow Chemical property at Pittsburg. 10 Comment
  CDA34275  Rumex pulcher D. G. Kelch 2009-5-24 9 .299 Contra Costa Carquinez Strait; S of Ozol, W/SW of Martinez. Comment
  CDA29768  Rupertia physodes D. G. Kelch, Troy MacGregor 2009-5-1 9 .267 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  JEPS100112  Rupertia physodes A. Langston 2003-6-12 AL 41 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS21987  Rupertia physodes G. Thomas Robbins 1958-5-4 3823 Contra Costa along Pinehurst Road on slopes above Upper San Leandro Reservoir (in hills e of Oakland) 228 Comment
  UC1129908  Rupertia physodes C. M. Belshaw 1936-5-13 2116 Contra Costa Marsh Ck.-Livermore Road 1/2 mi nw Summit; Mt. Diablo Quadrangle Comment
  UC16326  Rupertia physodes unknown 1032 Contra Costa Mount Diablo Comment
  JEPS22880  Rupertia physodes Helen J. McGinnis 1959-4-26 53 Contra Costa 1 1/2 mi from Tilden Park Nature Area (Wildcat Canyon); Wildcat Canyon 198 Comment
  UC2029077  Rupertia physodes Barbara Ertter 2000-7-16 17403 Contra Costa Lower Pine Creek on NW base of Mount Diablo, between Diablo Foothills Regional Park boundary and Pine Pond. Comment
  UC2070472  Rupertia physodes Barbara Ertter 2002-5-11 17842 Contra Costa Southwest base of Mount Diablo, lower Emmons Canyon Road. Comment
  POM118953  Ruppia cirrhosa Edward Palmer 2673 Contra Costa Byron Hot Springs. Comment
  UC1818938  Sagina apetala Barbara Ertter, Mary Bowerman et al. 1995-5-7 14056 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, road behind honses traversing north facing slope, mixed forest with much undergrowth. Comment
  UC2028160  Sagina apetala Barbara Ertter 1998-4-4 15948 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, SE of Indian Valley School. Comment
  UCD143634  Sagina procumbens Mack Osborne 1948-6-25 s.n. Contra Costa Danville. Comment
  POM208488  Sagittaria latifolia H. M. Hall 1916-8-16 10273 Contra Costa Antioch. Region of San Francisco Bay. Comment
  RSA0029774  Salicornia maritima Barbara Ertter 1990-9-30 9656 Contra Costa Point Pinole Regional Shoreline, on SW corner of park; edge of San Pablo Bay. Comment
  CAS-BOT-BC129912  Salix bonplandiana Ira L. Wiggins 1930-4-18 4601 Contra Costa Levee banks, Jersey Island. Comment
  CAS-BOT-BC103027  Salix bonplandiana Walter Knight; R. Bensler; B. Atwataer; J. Dean; B. Mortensen 1979-4-13 3368 Contra Costa South Landing. Browns Island Comment
  CAS-BOT-BC129916  Salix bonplandiana Mary L. Bowerman 1933-5-21 2162 a Contra Costa Sulphur Spring Canyon, streambed immediately below thimbleberry patch in Sulphur Spring fork. Comment
  UC691922  Salix exigua var. hindsiana Mary L. Bowerman 1936-5-6 3412 a Contra Costa Mitchell Canyon Mt. Diablo, Mitchell Canyon 152 Comment
  CAS-BOT-BC104087  Salix hindsiana Mary L. Bowerman 1935-5-30 3081 Contra Costa By Donner Canyon stream 152 Comment
  JEPS112253  Salix laevigata D. G. Kelch 2005-3-11 05 .038 Contra Costa Martinez - Franklin Hills; Carquinez Shoreline EBRP. West of Martinez High School. Comment
  POM167733  Salix laevigata H. P. Chandler 1901-3-22 859 Contra Costa Pacheco. Comment
  CDA39005  Salix lasiolepis D. G. Kelch 2007-4-29 7 .208 Contra Costa Carquinez Strait; Richmond; Chevy s Hill N. Hilltop Dr. Comment
  UC692064  Salix lasiolepis Mary L. Bowerman 1932-8-27 1519 Contra Costa spring s Turtle Rock; Mount Diablo Comment
  UC692066  Salix lasiolepis Mary L. Bowerman 1933-4-9 1830 Contra Costa streambed below Twin Peaks (w fork of canyon); Mount Diablo, Donner Canyon Comment
  CAS-BOT-BC129562  Salix lasiolepis var. lasiolepis Alice Eastwood 1914-2-24 3728 Contra Costa Antioch Comment
  UC1607511  Salpichroa origanifolia Barbara Ertter 1991-5-12 9818 Contra Costa Point Isabel Regional Shoreline in SW corner of El Cerrito, on San Francisco Bay Comment
  UCR265174  Salpichroa rhomboidea Barbara Ertter 1991-5-12 9818 Contra Costa Central Coast, Point Isabel Regional Shoreline in southwest corner of El Cerrito, on San Francisco Bay; along old railroad right-of-way between bay and Salicornia marsh. 4 Comment
  JEPS111797  Salsola australis A. G. Murdock 2003-9-12 202 Contra Costa Rodeo - Lone Tree Point Rodeo shoreline 2 Comment
  JEPS111804  Salsola soda D. G. Kelch 2004-4-26 04 .136 Contra Costa Point Pinole 3 Comment
  UC2029165  Salsola soda Barbara Ertter 1990-9-30 9659 Contra Costa NW CONTRA COSTA CO.: Point Pinole Regional Shoreline on San Pablo Bay, north Richmond; edge of salicornia marsh on N edge of park. Comment
  CAS-BOT-BC180753  Salsola tragus Walter Knight; Joanne Dean 1978-8-14 3114 Contra Costa Browns Island Comment
  JEPS62735  Salvia mellifera W. L. Jepson 1899-4 14949 Contra Costa Las Trampas Ridge Comment
  RSA752147  Salvia mellifera Alice Eastwood, J. T. Howell 1936-4-19 s.n. Contra Costa Nortonville. Comment
  UC25729  Salvia mellifera Harley P. Chandler 1901-4-5 976 Contra Costa Mt. Diablo Comment
  UC75018  Salvia mellifera unknown 1903-4-28 2945 Contra Costa Mitchell Canyon; Mt. Diablo Comment
  SEINET12273224  Salvia mellifera M. T. Doutt 1930-1 89 Contra Costa Marsh Creek Comment
  UC2027930  Salvia spathacea Barbara Ertter with Dorothy Frantz 2001-5-10 17641 Contra Costa Diablo Foothills Regional Park, Pine Canyon a few hundred yards above check dam. Comment
  JEPS12714  Sambucus mexicana Katharine Brandegee 1907-6-16 Contra Costa Antioch Comment
  UC1178021  Samolus parviflorus Herbert L. Mason 1955-7-14 14634 Contra Costa 1/2 mi e of Antioch Bridge Comment
  JEPS260  Sanicula bipinnata W. L. Jepson 1923-4-22 9870 Contra Costa Mt. Diablo Comment
  OBI70557  Sanicula bipinnata D. G. Kelch 2007-3-24 7 .088 Contra Costa Ozol; between Port Costa and Martinez, near old brick quarry Comment
  POM224440  Sanicula bipinnata Alice Eastwood, J. T. Howell 1936-4-19 s.n. Contra Costa Nortonville. Comment
  SEINET7062977  Sanicula bipinnata A. G. Vestal 1955-4-1 s.n. Contra Costa About 1.9 miles west of Bryon on the Camino-Diablo Road. UTM Zone 10, 616555mE, 4191378mN. (WGS84/NAD83). 53 Comment
  UCD127998  Sanicula bipinnata P. B. Kennedy 1925-4-26 s.n. Contra Costa Sycamore Canon Road, Mt. Diablo. Comment
  UCD32382  Sanicula bipinnata Beecher Crampton 1950-4-22 526 Contra Costa above Judsonville, above old Empire Mine to south around top of hills. 182 Comment
  PASA1823  Sanicula bipinnatifida Annetta Carter 1929-3-31 Contra Costa Near Clayton. Hills north of Mt. Diablo Comment
  UCD127982  Sanicula crassicaulis P. B. Kennedy 1925-4-26 s.n. Contra Costa near Sycamore Canon Trail, Mt. Diablo. Comment
  JEPS2845 Image available Sanicula saxatilis Edw. L. Greene 1892-6-1 Contra Costa Mt. Diablo Comment
  UC194920  Sanicula saxatilis H. M. Hall 1916-5-31 10136 Contra Costa along east crest of Mount Diablo Mount Diablo 1158 Comment
  UC691878  Sanicula saxatilis Mary L. Bowerman 1935-5-18 3025 Contra Costa Mount Diablo, across the road from and a little east of the parking area Mount Diablo 1066 Comment
  UC735124  Sanicula saxatilis Lincoln Constance, T. Morley, R. H. Shan, W. H. Wagner 1946-4-26 3036 Contra Costa Mount Diablo, Summit sw of lookout Mount Diablo 1158 Comment
  RSA471491  Sanicula tuberosa Brandegee 1884-05 s.n. Contra Costa Antioch Comment
  UC73326  Sanicula tuberosa Chesnut and Drew 1889-4-17 Contra Costa Clayton Comment
  UCD102394  Sanicula tuberosa Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Bald Ridge Trail. Bald Ridge. 880 Comment
  UCD33150  Sasa borealis Beecher Crampton 1966-10-18 7815 Contra Costa Contra Costa County, Kensington, Berkeley Hills Blake Garden, UC Berkeley Dept. of landscape architecture. Comment
  JEPS48656  Saxifraga californica Elsa Kraeger 1926-3-7 Contra Costa at Toll Gate on way to Mount Diablo Comment
  SEINET12220596  Saxifraga californica H. M. Hall 1901-1 1633 Contra Costa region of San Francisco Bay Comment
  CDA23106  Scandix pecten-veneris D. G. Kelch, D. A. Weinstein 2008-4-25 8 .079 Contra Costa Alvarado Park (west end of Wildcat Canyon Park) on north-facing hillside above Hindu temple in mixed scrub/grassland. Comment
Read comments
Jan 7 2016
  CDA37282  Scandix pecten-veneris D. G. Kelch 2011-3-31 11 .075 Contra Costa Carquinez Region; Richmond; Hilltop Lake Park. Comment
  JEPS111609  Scandix pecten-veneris D. G. Kelch 2003-4-3 03 .349 Contra Costa Cummings Skyway South of Cummings Skyway and Crockett Blvd 134 Comment
  UC1745553  Scandix pecten-veneris Annetta M. Carter, Florence Dickson, Howard Custer 1939-5-30 1441 Contra Costa 0.8 mi. S of Lafayette. 121 Comment
  SEINET192303  Scirpus acutus O. Woggoms, Woggoms 1930-4-18 4589 Contra Costa Jersey Island Contra Costa Co. Comment
  JEPS111886  Scirpus cernuus D. G. Kelch 2003-8-13 03 .120 Contra Costa Martinez Marsh 0 Comment
  CDA39143  Scirpus microcarpus D. G. Kelch 2004-7-9 4 .308 Contra Costa Carquinez Strait; Martinez; Alhambra Creek, near Muir gravesite. Arroyo del Hambre. Comment
  UC1606369  Scutellaria tuberosa Barbara Ertter, Brad Olson 1992-4-13 10952 Contra Costa 1 mi from Curry Point (Mount Diablo State Park, Knobcone Point Road); Mount Diablo State Park, Knobcone Point Road 487 Comment
  UC691405  Scutellaria tuberosa Mary L. Bowerman 1931-3-29 626 Contra Costa Mount Diablo, Cave Point Cave Point; Mount Diablo, Cave Point Comment
  CAS-BOT-BC417826  Sedella pentandra John Thomas Howell 1941-4-6 16182 Contra Costa Near Deer Flat, Mt. Diablo Comment
  UC35929  Senecio aronicoides F. T. Bioletti 1894-5-13 Contra Costa Mount Diablo Comment
  CAS-BOT-BC327445  Senecio flaccidus var. douglasii Lewis S. Rose 1955-10-17 55186 Contra Costa Antioch 15 Comment
  CAS-BOT-BC327443  Senecio flaccidus var. douglasii Walter Knight 1965-9-7 1173 Contra Costa Antioch Comment
  CAS-BOT-BC363702  Senecio hydrophilus Walter Knight 1977-7-15 s.n. Contra Costa Little Corral site. Antioch Sand Dunes Comment
  UC335828  Senecio triangularis unknown Contra Costa near Mt. Diablo; near Mt. Diablo Comment
Read comments
Feb 11 2013
  CAS-BOT-BC80265  Sequoia sempervirens John Thomas Howell 1925-10-11 1500 Contra Costa Moraga Ridge, Oakland Hills Comment
  HSC2615  Sequoia sempervirens D. A. Shally 1965-4-18 35 Contra Costa Canyon at Canyon Store Comment
  SEINET3876310 Image available Sequoia sempervirens Michael R. Tansey 1963-2-21 12 Contra Costa North end of Jewel Lake, Tilden Regional Park.; 0 152 Comment
  CDA33500  Sesbania punicea Slate 2010-7-6 PDR# 1649539 Contra Costa Alamo; 155 Via Bonita 0 Comment
  CDA37437  Sesbania punicea D. G. Kelch, Mike Perlmutter 2011-9-23 11 .764 Contra Costa Antioch. Dow Wetlands. Comment
  CDA23918  Sesuvium verrucosum D. G. Kelch 2006-7-14 6 .329 Contra Costa Carquinez Strait; Along Marine Vista Ave immmediately west of Pacheco Slough. East of Martinez. Comment
  UC1614106  Sherardia arvensis Charles M. Belshaw 1935-6-24 789 Contra Costa ca. 1/2 mi. e. Grizzly Peak (Bald Peak); Bald Peak Comment
  RSA720804  Sherardia arvensis Barbara Ertter, Mary Bowerman, Lisa Schultheis 1995-3-31 13941 Contra Costa Mount Diablo State Park. Lower end of Mitchell Canyon S of Clayton. 183 Comment
  UC1607657  Sidalcea malviflora subsp. laciniata Barbara Ertter, Chris Thayer 1993-5-7 11704 Contra Costa ca 1/2 mi n Vollmer Peak (= Bald Peak, in East Bay Municipal Utilities District land, e of Tilden Park); n of Vollmer Peak (= Bald Peak), e of Tilden Park 457 Comment
  UC692614  Sidalcea malviflora subsp. laciniata Mary L. Bowerman 1933-4-22 1880 Contra Costa opposite Heather Farm (near the sulphur spring, Shell Ridge where the highway crosses; meadow); Mount Diablo, Shell ridge, oppos Heather Farm Comment
  UC1614102  Sidalcea malviflora subsp. malviflora Charles M. Belshaw 1935-6-24 784 Contra Costa Bald Peak ca. 1/2 miles east of Grizzly Peak Comment
  CDA39044  Silene gallica D. G. Kelch 2011-6-5 11 .572 Contra Costa Carquinez Strait; South of Crockett, south of Cummings Skyway. Comment
  JEPS111788  Silene gallica D. G. Kelch 2005-3-24 05 .57 Contra Costa Point Pinole: Southern Pt. Pinole 3 Comment
  UC1948957  Silene gallica William J. Ferlatte, L. Maynard Moe 1970-4-27 1254 Contra Costa San Francisco Bay: Red Rock Island Comment
  CHSC23876  Sinapis arvensis Willis Ball 1975-2-23 445 Contra Costa Contra Loma Regional Park. In area #1. Ca. 10 yds s of lake ca. 50 yds. w of restroom facilities at s end of lake. 33 Comment
  RSA128364  Sinapis arvensis P. H. Raven 1950-3-5 1405 Contra Costa 0.75 mile from place where it meets Orinda - Richmond Road, Bear Creek Road. 107 Comment
  JEPS64283  Sisyrinchium bellum W. L. Jepson 1922-5-23 9670 Contra Costa n slope Mount Diablo Comment
  UC691995  Smilacina racemosa Mary L. Bowerman 1933-5-22 2168 Contra Costa e Knobcone Point (on n face (2 small ridges w of n ridge bearing Pinus attenuata)); Mount Diablo, Inner Black Hills Comment
  CDA39388  Smilacina stellata A. G. Murdock 2004-4-3 246 Contra Costa Vaca Canyon. Comment
  JEPS112504  Smilacina stellata A. G. Murdock 2004-4-30 246 Contra Costa Vaca Canyon 165 Comment
  IRVC12827  Smilacina stellata var. sessilifolia M. Pilorget 1967-4-17 6 Contra Costa Bear Creek. Comment
  CAS-BOT-BC157453  Solanum umbelliferum A. Eastwood 1915-5-30 4541 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC157455  Solanum umbelliferum J. T. Howell 1933-5-14 11291 Contra Costa Hills east of St. Mary's College Comment
  CAS-BOT-BC156306  Solanum umbelliferum anonymous 1900-3-26 s.n. Contra Costa Oakley. 6 m. E. of Antioch Comment
  JEPS78880  Solidago velutina subsp. californica Edward Lee 1936-12-12 2608 Contra Costa s Berkeley Country Club Comment
  UC697139  Soliva sessilis Mary L. Bowerman 1931-4-11 689 Contra Costa Pine Canyon , Pine Canyon (Mount Diablo) 121 Comment
  CDA15259  Sonchus asper G. F. Hrusa, D. Crowe 1998-5-8 14390 Contra Costa Sacramento Delta; E end of Dow Chemical property in Pittsburg. Comment
  CAS-BOT-BC365985  Sonchus asper John Thomas Howell 1933-5-14 11248 Contra Costa Hills east of St. Mary's College Comment
  SEINET11807909  Sonchus asper W. Knight, Knight, I. 1988-1 6219 Contra Costa Suisun Marsh Comment
  RSA760658  Sonchus oleraceus William J. Ferlatte, L. Maynard Moe 1970-4-27 1222 Contra Costa San Francisco Bay, Red Rock Island. Comment
  UCD146721  Sonchus tenerrimus G. F. Hrusa; D. Crowe 1998-5-8 14376 Contra Costa Sacramento-San Joaquin River Delta. On Dow Chemical property at Pittsburg. Adjacent to shore of San Joaquin River. 2 Comment
  UC337971  Sorghum halepense unknown Contra Costa John Muir's yard Martinez Comment
  UC2070598  Sparganium eurycarpum subsp. eurycarpum Barbara Ertter with Chris Thayer and Dianne Lake 2001-5-26 17658 Contra Costa Stamm Unit of Antioch Dunes National Wildlife Refuge east of Antioch. Comment
  UCD92971  Spartina foliosa A. A. Beetle 1940-11-1 2636 Contra Costa San Francisco Bay, near Point Richmond. Comment
  UC1795711  Spartium junceum Barbara Ertter, Gary Schoolcraft 1996-4-7 14582 Contra Costa Molate Beach Park on San Francisco Bay north of San Rafael Bridge; entrance to Western Drive from I-580 east of toll station on San Rafael-Richmond Bridge, road bank Comment
  UC1818860  Spergula arvensis subsp. arvensis Barbara Ertter, Kristin Ertter 1995-7-11 14467 Contra Costa Diablo Foothills Regional Park, dried road bed at base of east-facing cliff. 121 Comment
  UC1618227  Spergularia macrotheca Barbara Ertter 1990-10-14 9661 Contra Costa Point Isabel Regional Shoreline San Francisco Bay, El Cerrito (w shoreline, sw El Cerrito) Comment
  UCSB61645  Spergularia macrotheca Ertter, Barbara; Jokerst, Jim; Magney, David 1989-4-5 Contra Costa SE Contra Costa CO.; alkali sink W and adjacent to Clifton Court Forebay, ca. 15 air miles SW of Stockton, T1S R3E Sec. 24 SESW, near sea level Comment
  UC1584823  Spergularia macrotheca var. macrotheca Jerry Powell 1987-7-14 1499 Contra Costa Point Molate Beach; on sandstone bluff Comment
  UCD150899  Spergularia marina James A. Neilson Jr. 1972-10-22 3504 Contra Costa Walnut Creek drainage, near mouth of Walnut Creek. Elevation estimated using Google Earth by label maker. 0 Comment
  UC2070545  Spergularia marina Barbara Ertter 2003-3-28 18123 Contra Costa Round Valley Regional Preserve, north end of Round Valley along Murphy's Meadow trail. Comment
  JEPS100086  Spergularia rubra A. Langston 2003-9-16 AL 87 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC884280  Stachys ajugoides var. rigida Alice Eastwood 1915-5-30 Contra Costa Mt. Diablo Comment
  JEPS99581  Stachys pycnantha Mary Bowerman 1993-10-22 Contra Costa Mount Diablo, Pine Pond. Comment
  UCD99423  Stellaria media Susan Keefer 1969-4-26 28 Contra Costa east base of Las Trampas Peak, 1.5 miles southwest of Alamo. Comment
  UC1328148  Stellaria nitens Olive Dyer 1937-4-18 290 Contra Costa abandoned road up Madrone Canyon tributary (Wildcat Canyon); Wildcat Canyon Comment
  UC2027728  Stellaria pallida Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15508 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  SEINET7883496 Image available Stephanomeria virgata Lewis S. Rose 1938-1 38308 Contra Costa Marsh Creek, 6 mi. e. of Clayton 152 Comment
  UC2028380  Stipa lepida Barbara Ertter 1998-6-20 16243 a Contra Costa Shell Ridge Open Space on NW side of Mount Diablo,below picnic ground at Old Borges Ranch Comment
  CHSC116631  Stipa pulchra Lowell Ahart; Josephine Guardino 2016-4-19 29793 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the sides ot the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  UC2029191  Stipa pulchra Barbara Ertter with Brad Olson et al. 2000-6-2 17298 Contra Costa North side Brushy Peak Regional Preserve NE of Livermore Comment
  SEINET10926660  Stipa pulchra Frank W. Gould 1941-4-20 Gould 1281 Contra Costa Coastal bluffs near Richmond, associated with Melica californica. Comment
  JEPS20857  Streptanthus albidus W. L. Jepson 1899-4-19 13408 Contra Costa Las Trampas Ridge Comment
  SEINET3149300  Streptanthus glandulosus M. S. Baker 1904-6-24 sn Contra Costa Mt. Diablo, halfway to Summit Comment
  CAS-BOT-BC87097  Streptanthus glandulosus subsp. glandulosus John Thomas Howell 1942-5-24 16965 Contra Costa Near Deer Flat, Mount Diablo. Comment
  CAS-BOT-BC87333  Streptanthus hispidus Lewis S. Rose 1935-5-16 35171 Contra Costa Mount Diablo, summit. Comment
  CAS-BOT-BC87337  Streptanthus hispidus R. Bacigalupi 1946-5-30 2782 Contra Costa Along auto road up Mount Diablo, about 0.5 mile below Juniper Camp. Comment
  CAS-BOT-BC87340  Streptanthus hispidus W. H. Brewer 1884-1-1 s.n. Contra Costa Summit Mount Diablo. Comment
  CAS-BOT-BC87341  Streptanthus hispidus H. N. Bolander; Kellock M. D. s.n. Contra Costa Monte De Diablo. Comment
  SBBG29885  Streptanthus hispidus H. L. Mason 1938-5-3 11751 Contra Costa trail between Juniper Camp and Deer Flat, Mt Diablo Comment
  UC1292724  Streptanthus hispidus Freed W. Hoffman 1949-4-17 2766 Contra Costa Eagle Peak, E side, very near the summit Mount Diablo 725 Comment
  UC2028382  Stuckenia pectinata Barbara Ertter 1998-6-20 16251 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Gypsy Flat Pond SW of Old Borges Ranch. Also in Joaquin Pond Comment
  UC2028384  Stuckenia pectinata Barbara Ertter 1998-6-20 16254 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Willow Spring Pond south of Ginder Gap Comment
  UC2028421  Stuckenia pectinata Barbara Ertter 2000-9-30 17533 Contra Costa West side Mount Diablo, pond on China Wall Road ca 1/2 mile NW of Macedo Ranch Comment
  CAS-BOT-BC422920  Stylomecon heterophylla James McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  UC614558  Stylomecon heterophylla L. Constance, J. L. Morrison 1938-4-5 2193 Contra Costa nw base Mount Diablo (6 mi se of Walnut Creek); Coast Ranges, nw base of Mount Diablo Comment
  UC692176  Stylomecon heterophylla Mary L. Bowerman 1930-6-14 323 Contra Costa not far below summit Meridian Peak Mount Diablo; , not far below summit Meridian Peak Comment
  SEINET6034092  Symphoricarpos albus E. E. Stanford 1930-5-24 1509 Contra Costa Marsh Creek Canyon. Comment
  CAS-BOT-BC269562  Symphoricarpos albus var. laevigatus V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Val. Comment
  UC1005951  Symphoricarpos orbiculatus N. Floy Bracelin 1943-3-8 2430 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC97697  Symphyotrichum chilense R. E. Frenkel 1964-6-20 591 Contra Costa on Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  JEPS81615  Symphyotrichum lentum Walter Knight, L. R. Heckard and Bert Johnson 1978-9-29 3293 Contra Costa South Landing Browns Island Comment
  UC2042880  Symphyotrichum lentum Barbara Ertter, B. Olson, D. Lake, L. Hosley and A. Youngson 1991-10-20 10860 Contra Costa Dow Wetland Preserve, just W of Antioch. Comment
  UCD159500  Symphyotrichum subulatum var. parviflorum D. S. Park 2010-9-11 250 -1 Contra Costa Waterfront Rd. Growing along roadside. Disturbed. Wet. 5 Comment
  CAS-BOT-BC98330  Symphyotrichum subulatum var. parviflorum Walter Knight 1978-7-1 3107 Contra Costa Martinez waterfront, near mouth of Alhambra Creek Comment
  CAS-BOT-BC98331  Symphyotrichum subulatum var. parviflorum Walter Knight 1978-8-27 3196 Contra Costa Contra Loma Regional Park, at reservoir's edge. Comment
  CAS-BOT-BC99396  Symphyotrichum subulatum var. parviflorum W. L. Jepson 1891-9-16 s.n. Contra Costa at New Town landing, Lower Sacramento River Comment
  CAS-BOT-BC211591  Tamarix Walter Knight 1978-10-4 3316 Contra Costa Browns Island, near old homestead site. Comment
  UC1555368  Taraxia ovata Jerry Powell 1988-2-18 1525 Contra Costa Point Molate west Richmond Comment
  UC333731  Tauschia hartwegii unknown Contra Costa Martinez Comment
  UC9701  Thalictrum fendleri var. polycarpum J. Burtt Davy 1895-4-13 1010 Contra Costa near San Pablo Creek Comment
  CAS-BOT-BC197425  Thinopyrum ponticum T. C. Fuller 1961-9-13 7001 Contra Costa Hwy J4, ca. 4 mi. se. of Byron Comment
  CAS-BOT-BC88249  Thysanocarpus curvipes Alice Eastwood 1923-5-4 11702 Contra Costa Mount Diablo. Comment
  CAS-BOT-BC88256  Thysanocarpus curvipes Katharine Brandegee 1907-5-1 s.n. Contra Costa Antioch. Comment
  HSC101956  Thysanocarpus curvipes Nikolaus Gillen, Michelle Bihler 2014-3-20 8 Contra Costa Mount Diablo State Park. Back Creek Trail. 340 Comment
  UC691142  Thysanocarpus curvipes Mary L. Bowerman 1933-5-17 2102 Contra Costa branch of Curry Canyon due s of Olafson's barn Mount Diablo (w-facing bank just n of first fork of canyon); , branch of Curry Canyon 289 Comment
  UC857530  Thysanocarpus curvipes Lewis S. Rose 1941-3-27 41066 Contra Costa 2 mi w Byron 60 Comment
  CAS-BOT-BC88254  Thysanocarpus curvipes John Thomas Howell 1934-4-8 11821 Contra Costa Marsh Creek Road southwest of Brentwood. Comment
  CAS-BOT-BC88263  Thysanocarpus curvipes J. G. Lemmon April s.n. Contra Costa Mount Diablo and northward. Comment
  POM203036  Thysanocarpus curvipes var. curvipes J. T. Howell 1934-4-8 11822 Contra Costa Marsh Creek Road, SW of Brentwood. Comment
  RSA0039373  Thysanocarpus curvipes var. curvipes John Thomas Howell 1934-4-8 11821 Contra Costa Marsh Creek Road SW of Brentwood. Comment
  SEINET10904232  Thysanocarpus curvipes var. elegans John T. Middleton 1936-4-18 Middleton 141 Contra Costa Briones valley. Comment
  UC691139  Thysanocarpus laciniatus Mary L. Bowerman 1932-3-27 1138 Contra Costa Mount Diablo , below Mitchell Rock (below Mitchell Rock) Comment
  UCD115618  Thysanocarpus laciniatus P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UC11040  Thysanocarpus laciniatus W. H. Brewer 1862-5-14 1097 Contra Costa Mount Diablo, Eagle Peak Comment
  JEPS116724  Thysanocarpus radians David Gowen 2006-4-22 546 Contra Costa Los Vaqueros Watershed. Chaparral area (Mallory Ridge?) just southeast of Morgan Territory Reg. Preserve. Comment
  UC1818959  Torilis arvensis Barbara Ertter, Kristin Ertter 1995-7-11 14480 Contra Costa Pine Creek on West side of Mt. Diablo southwest of Walnut Creek; partial shade of oak forest, road along Pine Cr. in Diablo Foothills Regional Park 152 Comment
  JEPS111629  Torilis nodosa D. G. Kelch 2005-5-1 05 .201 Contra Costa Crockett - Edwards Canyon 100 Comment
  RSA720806  Torilis nodosa Barbara Ertter, Mary L. Bowerman 1995-6-11 14254 Contra Costa Shell Ridge recreation area southeast of Walnut Creek, bank of Indian Creek above Indian Valley pond 76 Comment
  UC692376  Torilis nodosa Mary L. Bowerman 1930-6-3 230 Contra Costa North road 1.9 miles from entrance 167 Comment
  JEPS63921  Toxicodendron diversilobum W. L. Jepson 1922-5-15 9643 Contra Costa N. Berkeley Hills Comment
  UC1084405  Toxicodendron diversilobum G. Thomas Robbins 1937-4-17 118 Contra Costa near Point Richmond Point Richmond Comment
  UC692580  Toxicodendron diversilobum Mary L. Bowerman 1942-5-24 3845 Contra Costa W. Fork Sycamore Creek (Madrone Canyon) below Rock City Camp; Mt. Diablo, Madrone Canyon, W. Fork Sycamore Creek Comment
  CDA4742  Tribulus terrestris A. G. Murdock, D. G. Kelch 2004-5-28 305 Contra Costa Carquinez Strait; Luzon. Comment
  UCR66560  Trientalis latifolia F. W. Peirson 1926-4-10 6635 Contra Costa Boulevard near San Pablo Reservoir Comment
  UC1129956  Trifolium albopurpureum var. albopurpureum C. M. Belshaw 1936-5-8 2056 Contra Costa Mt. Diablo Mt. Diablo Quadrangle 990 Comment
  UC555617  Trifolium albopurpureum var. albopurpureum H. L. Mason 1929-5-7 5261 Contra Costa Moraga Ridge Comment
  UC1795831  Trifolium albopurpureum var. albopurpureum Barbara Ertter, Brad Olson, Diane Lake 1996-4-14 14588 Contra Costa North Peak of Mt. Diablo; open rocky flats. 1097 Comment
  UC630850  Trifolium albopurpureum var. dichotomum Katharine Brandegee 1909-4-24 Contra Costa Antioch Comment
  RSA91071  Trifolium albopurpureum var. olivaceum Alice Eastwood, John T. Howell 1936-4-19 2132 Contra Costa Nortonville. Comment
  UC165601  Trifolium albopurpureum var. olivaceum J. Burtt Davy 1895-1 950 Contra Costa Antioch Comment
  JEPS107019  Trifolium bifidum var. decipiens J. Greenhouse with Kevin Hintsa 2004-4-5 5090 Contra Costa Mt. Diablo, lower summit parking area 1124 Comment
  UC1130046  Trifolium bifidum var. decipiens C. M. Belshaw 1936-5-7 2042 Contra Costa 2 mi s San Ramon; Mt. Diablo quadrangle 274 Comment
  UC1618339  Trifolium bifidum var. decipiens Barbara Ertter, Chris Thayer 1993-5-7 11714 Contra Costa 1/2 mi n of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land e of Tilden Park (s of Wildcat Canyon Road); East Bay Municipal Utilities District land Comment
  CDA28873  Trifolium ciliolatum D. G. Kelch, Jessica Kolman 2009-5-29 9 .312 Contra Costa Carquinez Strait; Pinole Valley Park, near ridgetop. Comment
  UC692460  Trifolium ciliolatum Mary L. Bowerman 1935-4-28 2926 Contra Costa e Pioneer Camp (ridge at w end of willizenii Flat); Mount Diablo Comment
  UC692461  Trifolium ciliolatum Mary L. Bowerman 1935-5-1 2931 Contra Costa r mi from entrance (w rd); Mount Diablo Comment
  POM313531  Trifolium depauperatum var. amplectens P. B. Kennedy 1929-4-25 10245 Contra Costa Briones Valley, Marsh Creek road. Comment
  UC1561224  Trifolium depauperatum var. depauperatum Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8139 Contra Costa ca 15 air mi sw Stockton (w and adjacent to Clifton Court Forebay) 0 Comment
  UC630932  Trifolium depauperatum var. depauperatum P. B. Kennedy 1928-4-19 10035 a Contra Costa Byron Comment
  UCSC010986  Trifolium depauperatum var. laciniatum R. Morgan 1996-4-2 2852 Contra Costa NE side of Byron Hwy (07) just N or Byron Hot Springs Rd Comment
  UC147173  Trifolium depauperatum var. truncatum Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  SD37270  Trifolium dichotomum Mc Callum 1933-4-25 2140 Contra Costa Low hills near Tassajara Comment
  JEPS100104  Trifolium dubium G. Smick GAS 108 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1618358  Trifolium dubium Barbara Ertter, Chris Thayer 1993-5-7 11713 Contra Costa 1/2 mi n of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land e of Tilden Park (s of Wildcat Canyon Road); East Bay Municipal Utilities District land Comment
  UC1197027  Trifolium fucatum J. P. Tracy 1900-3-24 601 A Contra Costa near Point Richmond 3 Comment
  UC16513  Trifolium fucatum W. H. Brewer 1862-5-5 1045 Contra Costa Camp 69 Walnut Creek Comment
  UC16545  Trifolium fucatum J. Burtt Davy 1895-4-7 959 Contra Costa Antioch Comment
  UC631618  Trifolium fucatum P. B. Kennedy 1928-4-19 10051 Contra Costa Byron Hot Springs Comment
  POM194649  Trifolium fucatum var. fucatum Y. Mexia 1929-4-21 2369 Contra Costa Moraga Valley. Comment
  CHSC116604  Trifolium glomeratum Lowell Ahart; Josephine Guardino 2016-4-19 20758 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. 1.8 miles (air) northwest of Los VaquerosReservoir Marina, 2.1 miles (air) southwest of Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  UC165608  Trifolium gracilentum J. Burtt Davy 1895-1 926 Contra Costa Antioch Comment
  UC555592  Trifolium gracilentum H. L. Mason 1928-4-13 4301 Contra Costa Richmond waterfront Comment
  JEPS65901  Trifolium gracilentum var. gracilentum W. L. Jepson May 23 1891-May 24 1891 13689 Contra Costa Mt. Diablo Comment
  JEPS65908  Trifolium gracilentum var. gracilentum W. L. Jepson 1923-4-22 9858 Contra Costa Mt. Diablo Comment
  CDA8356  Trifolium hirtum D. G. Kelch, A. G. Murdock 2005-4-15 5 .148 Contra Costa Carquinez Strait; In East Bay Regional Park land W of Cumming s Skyway near Summit (nr old C&H Sugar diatomaceous earth dump). Comment
  CDA29061  Trifolium microcephalum D. G. Kelch 2006-5-7 6 .149 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  POM300695  Trifolium microcephalum Mary L. Bowerman 1935-4-19 2871 Contra Costa Road about 7 miles from North Gate, ridge west of the power poles, above the road junction. 701 Comment
  RSA90931  Trifolium microdon J. T. Howell 1933-5-14 11244 Contra Costa St. Mary's College. Comment
  UC692669  Trifolium microdon Mary L. Bowerman 1935-4-19 2872 Contra Costa ca 7 mi w Northgate (by rd, ridge w of the power poles, above the rd junction); Mount Diablo 670 Comment
  UC16753  Trifolium obtusiflorum W. H. Brewer 1862-4-30 1005 Contra Costa Camp 69 Walnut Creek Comment
  CDA28015  Trifolium oliganthum D. G. Kelch, A. G. Murdock 2005-4-15 5 .15 Contra Costa Carquinez Strait Region; Rodeo Creek. EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump). Comment
  RSA0027700  Trifolium oliganthum Barbara Ertter, Dan Norris 2001-4-15 17609 Contra Costa West side Mount Diablo, head of W-facing drainage west of China Wall rock formation (off trail between Hanging Valley Trail and China Wall Road). 274 Comment
  UC2027925  Trifolium oliganthum Barbara Ertter with Dan Norris 2001-4-15 17608 Contra Costa West side Mount Diablo, south end of Hanging Valley Trail. Comment
  UC555403  Trifolium oliganthum H. L. Mason 1929-3-29 5131 Contra Costa 2 mi above Clayton (Marsh Creek Rd) Comment
  JEPS111086  Trifolium subterraneum Lee Echols 2003-4-15 s.n. Contra Costa S of Lark Drive and N of EPA buidling, within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  JEPS125936  Trifolium tomentosum D. W. Taylor 2001-3-28 17620 Contra Costa Berkeley Hills; on slopes about 0.75 miles S of Hwy 24 at E portal of the Caldecott Tunnel Comment
  UC2028957  Trifolium tomentosum Barbara Ertter 2002-5-8 17832 Contra Costa Richmond Field Station. Comment
  CDA28080  Trifolium willdenovii D. G. Kelch, A. G. Murdock 2005-4-24 5 .167 Contra Costa Carquinez Strait Region; Franklin Canyon. Collier Hill. West Carbon. Comment
  UC1130132  Trifolium willdenovii C. M. Belshaw 1936-4-8 2071 Contra Costa 2.25 mi e Clayton; Mt. Diablo quad 381 Comment
  UC1197527  Trifolium willdenovii J. P. Tracy 1900-3-24 620 Contra Costa Point Richmond 15 Comment
  UC165499  Trifolium willdenovii J. Burtt Davy 1895-4-13 1001 Contra Costa San Pablo Creek Comment
  UC407376  Trifolium willdenovii Ira L. Wiggins 1930-4-17 4575 Contra Costa 1/4 mi s Byron Comment
  UC630906  Trifolium willdenovii P. B. Kennedy 1907-5-5 Contra Costa Lake Merritt Oakland Comment
  UC692240  Trifolium willdenovii Mary L. Bowerman 1935-4-12 2816 Contra Costa 2 mi from entrance = North Gate (w rd = n rd); Mount Diablo 259 Comment
  UC692241  Trifolium willdenovii Mary L. Bowerman 1930-6-5 251 Contra Costa 5.8 mi from entrance (w rd = n rd); Mount Diablo Comment
  POM181463  Trifolium willdenovii I. L. Wiggins 1930-4-17 4575 Contra Costa 1/4 mi. S. of Byron. Comment
  POM18879  Trifolium willdenovii H. P. Chandler 1901-3-22 841 Contra Costa Concord. Comment
  UC1619920  Triglochin striata Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10714 Contra Costa Browns Island n of Pittsburg (near confluence of Sacramento and San Joaquin Rivers opposite Pittsburg Marina, at (Botany Cove)); Browns Island Comment
  SEINET10458963  Triodanis biflora Bowerman BOWERMAN 2130 Contra Costa MT. DIABLO Comment
  UC1046443  Triphysaria eriantha subsp. eriantha Alex D. Hawkes and R. Bacigalupi 1951-4-21 4772 Contra Costa meadow near Walnut Creek; meadow near Walnut Creek Comment
  CHSC116658  Triphysaria pusilla Lowell Ahart; Josephine Guardino 2016-4-19 20780 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the sides of the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  JEPS23260  Triphysaria pusilla G. Thomas Robbins 1959-4-26 4004 Contra Costa about 1/4 mi n San Pablo Oil Tank Farm (open slope about 1 mi ne of Giant) 15 Comment
  UC691571  Triphysaria pusilla Mary L. Bowerman 1931-3-29 615 Contra Costa foot of Cave Point Ridge Mount Diablo; , foot of Cave Point Ridge Comment
  RSA653988  Trisetum canescens Beecher Crampton 1956-5-14 3423 Contra Costa 2 miles W of Martinez, on road to Crockett. Comment
  UCD93500  Trisetum canescens Beecher Crampton 1956-5-14 3423 Contra Costa 2 miles west of Martinez, on road to Crockett. Comment
  HSC3044  Triteleia hyacinthina J. Wendell Howe 1930-5-23 114 Contra Costa Moraga Valley Comment
  JEPS100058  Triteleia laxa G. Smick 2003-4-10 GAS 136 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS120268  Triteleia laxa Barbara Ertter with David Gowen 2012-6-9 21020 Contra Costa Seaview Trail on morth side of Vollmer Peak, southeastern Tilden Park in Berkeley Hills Comment
  SEINET12044746  Triteleia laxa J. T. Howell 1931-1 6468 Contra Costa Oakland Hills Comment
  SEINET3889041  Triteleia laxa John Thomas Howell 1931-5-12 6468 Contra Costa Oakland Hills.; 0 Comment
  CAS-BOT-BC67347  Tropidocarpum capparideum Robert F. Hoover 1936-3-19 806 Contra Costa Byron Hot Springs. Comment
  LA204485  Tropidocarpum capparideum Robert F. Hoover; 1936-3-19 806 Contra Costa Byron Hot Springs Comment
  UCR81450  Tropidocarpum capparideum Edward L. Greene 1888-3-25 s.n. Contra Costa Byron Springs 107 Comment
  UC673305  Tropidocarpum gracile H. L. Mason 1929-3-31 5152 Contra Costa sand dike along river at Antioch; San Joaquin River Comment
  UC691062  Tropidocarpum gracile Mary L. Bowerman 1932-2-28 1092 Contra Costa ridge e Rhine Canyon; Mount Diablo 579 Comment
  UC1241770  Typha Malcolm A. Nobs and S. Galen Smith 1949-6-28 879 Contra Costa on road to Martinez about two mi s Crockett Comment
  UC2070653  Typha Barbara Ertter 1998-11-15 16460 Contra Costa North side Mount Olympia on north side Mount Diablo. Comment
  CDA1418  Typha angustifolia D. G. Kelch, Andrew G. Murdock 2003-8-13 3 .105 Contra Costa Carquinez Strait Region; Martinez Marsh. Comment
  UC692073  Typha domingensis Mary L. Bowerman 1938-6-14 3677 Contra Costa Mineral Spring Mount Diablo (along streamlet); , Mineral Spring 350 Comment
  UC2031410  Ulmus minor Barbara Ertter 1993-4-2 11479 Contra Costa Carquinez Regional Park below Vista Road west of Crockett Comment
  UC2061510  Ulmus minor Dean G. Kelch 2016-4-30 16 .103 Contra Costa Carquinez Strait: Selby, west of Crockett. On west side of canyon near old dwelling foundation. Comment
  CAS-BOT-BC91092  Umbellularia californica Annetta Carter 1937-3-20 1224 Contra Costa Lake Orinda Road, two miles northwest of Orinda. 121 Comment
  UC1126330  Umbellularia californica R. W. Lundh 1933-3-1 203 Contra Costa Eastport 243 Comment
  UC691944  Umbellularia californica Mary L. Bowerman 1931-2-8 514 Contra Costa Summit of Mount Diablo Mount Diablo Comment
  POM247255  Umbellularia californica Annetta Carter 1937-3-20 1224 Contra Costa Lake Orinda Road, two miles northeast of Orinda. 122 Comment
  SEINET12102545  Umbellularia californica M. T. Doutt 1930-1 97 Contra Costa Marsh Creek Comment
  SBBG45098  Umbellularia californica var. californica A. Carter 1937-3-20 1224 Contra Costa Lake Orinda Rd, 2 mi NW of Orinda 121 Comment
  JEPS35667  Uropappus lindleyi W. L. Jepson 1931-4-5 15715 Contra Costa Oakley 18 Comment
  UC691783  Uropappus lindleyi Mary L. Bowerman 1957-5-2 1957 Contra Costa Pioneer Camp Mount Diablo 762 Comment
  UC691797  Uropappus lindleyi Mary L. Bowerman 1931-4-4 632 Contra Costa two mi by road from North Gate Mount Diablo (Mount Diablo); Mount Diablo Comment
  UC336484  Uropappus lindleyi unknown Contra Costa near Mt. Diablo Comment
  CAS-BOT-BC344883  Urtica Peter Rubtzoff 1968-9-18 5963 Contra Costa North Gate Road, ca. 5 miles northwest of Mt. Diablo State Park north entrance. Comment
  UCR142707  Urtica dioica subsp. holosericea Joseph A. Ewan 1933-10-15 8018 Contra Costa San Francisco Bay Region, South West slope of Mount Diablo 1159 Comment
  POM210640  Urtica dioica subsp. holosericea Joseph A. Ewan 1933-10-15 8018 Contra Costa SW slope of Mount Diablo. Comment
  UC635677  Utricularia gibba H. L. Mason 1929-9-21 5441 Contra Costa 1 mi. n. from junction of Borden Hwy. and rd. to Antioch Comment
  CAS-BOT-BC199242  Vaccinium ovatum W. W. Carruth 1901-5-1 s.n. Contra Costa Redwood Canon [Canyon] Comment
  UC1050825  Verbascum N. Floy Bracelin 1943-6-20 1346 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1005914  Verbascum phoeniceum N. Floy Bracelin 1943-5-2 2498 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC454110  Verbena hastata I. J. Condit 1908-8-20 Contra Costa Oakley Comment
  UC1613942  Verbena lasiostachys var. scabrida Charles M. Belshaw 1935-6-24 1023 Contra Costa Sobrante Hills Comment
  JEPS39065  Verbena lasiostachys var. scabrida Robert Brandt 1914-7-16 Contra Costa Wildcat Canon, Berkeley Hills. Comment
  UC691578  Verbena lasiostachys var. scabrida Mary L. Bowerman 1930-10-4 481 Contra Costa Maple Spring Comment
  UC1050076  Viburnum foetidum var. rectangulatum N. Floy Bracelin 1941-7-13 1476 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1051053  Viburnum japonicum N. Floy Bracelin 1942-10-4 2334 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1050716  Viburnum trilobum N. Floy Bracelin August, 1941 1134 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CDA23620  Vicia americana D. G. Kelch, D. A. Weinstein 2008-4-15 8 .041 Contra Costa Carquinez Strait; S Port Costa along Mckewen Rd. Comment
  UC2070474  Vicia americana Barbara Ertter 2003-3-28 18137 Contra Costa Round Valley Regional Preserve, mid Hardy Canyon along High Creek. Comment
  UC2028140  Vicia americana subsp. americana Barbara Ertter 1998-4-4 15975 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, south of Bramhill Pond. Comment
  UC1130189  Vicia americana var. americana C. M. Belshaw 1936-5-12 2109 Contra Costa 3.7 mi ene Tassajero; Mt. Diablo Quad. 670 Comment
  UC692687  Vicia americana var. americana Mary L. Bowerman 1931-3-21 589 Contra Costa Sycamore Canyon; Mount Diablo 335 Comment
  UCD38561  Vicia americana var. americana Beecher Crampton 1956-5-14 3426 Contra Costa 4 miles west of Martinez on the road to Crockett, above Port Costa Brick Works. Comment
  UCR224651  Vicia sativa Dean Kelch 2007-4-29 07 .207 Contra Costa Richmond; 'Chevy's Hill' north of Hilltop Drive 68 Comment
  HSC15274  Vicia sativa subsp. sativa Greg Bos 1963-4-26 93 Contra Costa Pinole Valley Rd., SE of Pinole 76 Comment
  CDA15246  Vicia villosa subsp. varia G. F. Hrusa, D. Crowe 1998-5-8 14377 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Comment
  RSA29586  Vinca major Joseph A. Ewan 1936-5-31 9710 Contra Costa West rim of Wildcat Canyon Comment
  UC1300827  Viola glabella Helen K. Sharsmith 1962-5-19 5053 Contra Costa foot of Moraga Ridge (near Canyon); San Francisco Bay Region, Moraga Ridge 152 Comment
  JEPS50464  Viola pedunculata W. L. Jepson 1917-4-14 6861 Contra Costa summits near Redwood Peak (Oakland Hills); Oakland Hills Comment
  UC1121599  Viola pedunculata H. S. Yates 1936-3-14 5355 Contra Costa 1/2 mi n of mouth of Perkins Canyon 228 Comment