Search Results — 2000 specimen records retrieved (1365 records with coordinates)
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(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/cch_archive/).
 Records are made available under the CCH Data Use Terms.

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A yellow cell in the column headed "?", for records with coordinates, indicates a discrepancy with respect to range as specified in the eFlora. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  OBI7573  Abies bracteata Robert F. Hoover 1964-4-5 8664 Contra Costa Cultivated in Tilden Park botanic Garden Comment
  UC1050943  Acacia pycnantha N. Floy Bracelin 1942-8-16 2256 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1050368  Acacia verticillata N. Floy Bracelin 1942-7-4 2172 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC331612  Acer macrophyllum Paul F. Covel 1940-4-21 s.n. Contra Costa Las Trampas Canyon Comment
  CAS-BOT-BC331614  Acer macrophyllum John Thomas Howell 1926-3-7 1661 Contra Costa Mt. Diablo near toll gate Comment
  UC18109  Acer macrophyllum Harley P. Chandler 1901-4-5 941 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC331613  Acer macrophyllum Paul F. Covel 1936-4-19 235 Contra Costa Las Trampas (Cashion) Canyon Comment
  SEINET12766391  Acer macrophyllum M. E. Matheron 1968-4-14 55 Contra Costa 2 miles from entrance to Mt. Diablo State Park on North Gate Road, Mt. Diablo.; 0 457 Comment
  UCSB11596  Acer macrophyllum Grah, Nancy 1962-4-14 Contra Costa Corner of Lombardy Lane and Sleepy Hollow Lane, Orinda 152 Comment
  POM247253  Acer negundo subsp. californicum Annetta Carter 1937-4-4 1229 Contra Costa Moraga Valley, 2 1/2 miles north of Moraga 183 Comment
  JEPS42725  Acer negundo var. californicum W. L. Jepson 1908-8-16 3084 Contra Costa Walnut Creek 22 Comment
  UC588154  Acer negundo var. californicum Annetta Carter 1937-4-4 1229 Contra Costa 2 1/2 mi n Moraga (Creek bank, Moraga Valley); Moraga Valley, n of Moraga 182 Comment
  UC1301058  Achyrachaena mollis Helen K. Sharsmith 1963-4-7 5298 Contra Costa near Byron; San Francisco Bay 7 Comment
  CAS-BOT-BC29889  Achyrachaena mollis Rimo Bacigalupi 1920-4-10 1278 Contra Costa Grade above Arroyo Mocho on way to Cedar Mtn. about 10 miles SE of Livermore Comment
  UCD128425  Achyrachaena mollis L. S. Smith 1916-5-10 s.n. Contra Costa Grand View Terrace, San Pablo. Comment
  JEPS112353  Acmispon glaber Dean G. Kelch and Andrew G. Murdock 2004-4-3 04 .054 Contra Costa Crockett - Tormey Headlands, County: Contra Costa; Road cut west of I-80 and Cummings Skyway junction. Comment
  CHSC23289  Acmispon wrangelianus Carol Getzinger 1964-4-11 Contra Costa Along Arlington Boulevard at Patterson Circle, Richmond. 30 Comment
  JEPS112367  Acmispon wrangelianus Dean G. Kelch and Andrew G. Murdock 2004-3-19 222 Contra Costa Luzon; County: Contra Costa; Sycamore Ave. just east of Rodeo / Hercules where train crosses Highway 4 (Luzon). Top of ridge to south of road. Comment
  JEPS112409  Acmispon wrangelianus Dean G. Kelch and Andrew G. Murdock 2005-4-15 05 .152b Contra Costa Rodeo Creek; county: Contra Costa; EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump). Comment
  UC905259  Actaea rubra J. A. Rattenbury 1949-3-10 129 Contra Costa 1/2 mi. e. Oakland Tunnel (on s. side of hwy. above creek) 243 Comment
  CAS-BOT-BC133154  Adenostoma fasciculatum Mrs. Brandegee s.n. Contra Costa Antioch Comment
  UC1127726  Adenostoma fasciculatum R. W. Lundh 1933-2-1 199 Contra Costa Las Trampas Ridge Concord Quad., Las Trampas Ridge Comment
  SEINET11906748  Adenostoma fasciculatum E. L. Core 1952-1 s.n. Contra Costa Mt. Diablo 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
  CHSC22658  Aesculus californica Robert A. Schlising 1965-1-24 2740 Contra Costa North of Briones Reservoir along Hampton Road; 1.1 mi S of Jct with Garcia Ranch Road. Comment
  LA205595  Aesculus californica J. A. Ewan; 1936-5-31 9715 Contra Costa Wildcat Creek Comment
  UC1125464  Agoseris grandiflora var. grandiflora C. M. Belshaw 1936-5-12 2102 Contra Costa 2 mi ese of Mt. Diablo; Mt. Diablo Quadrangle 335 Comment
  CAS-BOT-BC22970  Agoseris heterophylla John Thomas Howell 1933-5-14 11260 Contra Costa Hills east of St. Mary's College Comment
  CAS-BOT-BC22971  Agoseris heterophylla John Thomas Howell 1933-5-14 11260 Contra Costa Hills east of St. Mary's College Comment
  RSA8523  Agoseris heterophylla J. T. Howell 1933-5-14 11260 Contra Costa Hills east of St. Mary's college Comment
  UC29357  Agoseris heterophylla var. heterophylla H. M. Hall 1901-4-5 1726 Contra Costa Mt. Diablo; San Francisco Bay region Comment
  JEPS36324  Agoseris hirsuta W. L. Jepson 1922-5-26 9673 Contra Costa North Berkeley Hills; Berkeley Hills (North) Comment
  CAS-BOT-BC13350  Agoseris retrorsa Alice Eastwood 1916-5-30 4500 Contra Costa Mount Diablo Comment
  CHSC116630  Agrostis avenacea Lowell Ahart; Josephine Guardino 2016-4-19 20787 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Below the high water line of Los Vaqueros Reservoir, 1.4 miles (air) northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  JEPS96230  Agrostis avenacea Barbara Ertter, Brad Olson 1991-9-28 10831 Contra Costa San Pablo Reservoir between Orinda and El Sobrante (at s. end of reservoir); San Pablo Reservoir 91 Comment
  CDA28132  Agrostis exarata D. G. Kelch 2003-8-13 3 .113 Contra Costa Carquinez Strait; Salt Marsh E of Marina. Martinez. Comment
  UC692410  Agrostis exarata Mary L. Bowerman 1933-9-9 2434 Contra Costa edge of spring Mount Diablo, Frog Pond Comment
  UC2028498  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 Comment
  UC697196  Agrostis hallii Mary L. Bowerman 1944-6-19 3895 Contra Costa in eastern corner of triangle formed by roads to upper Rock City Camp (Fossil Ridge, Mount Diablo); Mount Diablo Comment
  RSA0029673  Agrostis hallii Barbara Ertter, Dan Norris 1998-7-18 16229 Contra Costa Black Hawk Ridge Road below Knobcone Point Road, south side of Mount Diablo. Comment
  UC2013050  Agrostis hallii Barbara Ertter with Lisa Schultheis 1996-9-2 15278 Contra Costa South Side Mount Diablo Blackhawk Road east of Sycamore Creek Road. Comment
  UC606759  Agrostis pallens Edward Lee 1936-4-19 2008 Contra Costa ne slope of island San Francisco Bay, Red Rock Comment
  UC2028373  Aira caryophyllea Barbara Ertter 1998-6-20 16233 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo. Alkali Pond at Wiget Lane entrance. Comment
  UCD55783  Aira caryophyllea Beecher Crampton 1956-5-14 3391 Contra Costa 7 miles southwest of Antioch, just east of old Nortonville. Comment
  UC2028390  Alisma lanceolatum Barbara Ertter with Tony Morosco 1998-7-11 16375 Contra Costa Antioch Regional Shoreline under south end of Antioch Bridge, edge of water on riprap Comment
  UC1618271  Alisma plantago-aquatica Barbara Ertter 1990-9-10 9638 Contra Costa s of Martinez (Briones Regional Park, Briones Hills, at margin of main Sindicich Lagoon); Briones Regional Park, Briones Hills 365 Comment
  CAS-BOT-BC175359  Allenrolfea occidentalis J. Burtt Davy 1898-5-1 s.n. Contra Costa Byron Springs, Mt. Diablo region Comment
  UC692027  Allium acuminatum Mary L. Bowerman 1930-6-10 307 Contra Costa Meridian Peak summit, Mount Diablo Mount Diablo, Meridian Peak Comment
  UC3071  Allium falcifolium W. H. Brewer 1862-5-7 1060 Contra Costa summit Monte Diablo; summit of Mt. Diablo Comment
  UC843253  Allium falcifolium Lewis S. Rose 1941-5-15 41237 Contra Costa summit of Mt. Diablo, Type Locality Mt. Diablo 1188 Comment
  RSA26408  Allium falcifolium J. T. Howell 1941-4-6 16179 Contra Costa Ridge east of Deer Park, Mt. Diablo 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
  UC85605  Allium serra Katharine Brandegee 1907-5-5 Contra Costa bet. Antioch and Marsh Creek Comment
  CAS-BOT-BC475526  Allium serra Alice Eastwood 1895-4-8 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC475538  Allium serra Mary L. Bowerman 1930-6-18 338 Contra Costa Rock City Canyon; 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
  UC2013015  Allium serra Barbara Ertter 1991-5-5 9782 Contra Costa Black Diamond Mines Regional Preserves S of Pittsburg, N-facing slope below Black Diamond Trail in SW corner of park. Comment
  CAS-BOT-BC476606  Allium unifolium Mrs. E. C. Wright 1917-6-1 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC170931  Alnus rhombifolia Walter Knight 1965-3-1 910 Contra Costa Antioch Dunes, along water's edge - Carquinez Straights Comment
  JEPS58614  Alnus rhombifolia W. L. Jepson 1901-10-12 Contra Costa Mount Diablo Comment
  POM166519  Alnus rhombifolia W. C. Blasdale 1896-2-29 3690 Contra Costa Clayton. Comment
  UC692034  Alnus rhombifolia Mary L. Bowerman 1931-10-13 1058 Contra Costa Alamo Canyon Mount Diablo 259 Comment
  CAS-BOT-BC170929  Alnus rhombifolia H. E. McMinn 1922-10-17 399 Contra Costa Curry Cannon, Mt. Diablo Comment
  SEINET12027584  Alnus rhombifolia L. S. Rose 1938-1 38307 Contra Costa Marsh Creek, 6 mi E of Clayton 152 Comment
  UC1952849  Aloe striatula Barbara Ertter 2007-5-20 19027 Contra Costa Berkeley Hills SE of UC campus, along path north of Dwight Way extension at head of Panoramic Way Comment
  CDA37403  Amaranthus albus D. G. Kelch, Mike Perlmutter 2011-9-23 11 .758 Contra Costa Entry to Discovery Bay. Comment
  UC2027977  Amaranthus albus Barbara Ertter with Mary Bowerman 1996-11-1 15397 Contra Costa North base of Mount Diablo, downstream from Mitchell Canyon parking lot. Comment
  UCD97779  Amaranthus retroflexus J. D. Sauer 1953-8-14 1640 Contra Costa Near Marsh Creek Lodge. Comment
  UC1618292  Amelanchier utahensis Barbara Ertter, CNPS 1990-8-19 9624 Contra Costa s side of E arm of Briones Reservoir n of Orinda (along Bear Creek Trail on EBMUD land); Briones Reservoir, Bear Creek Trail 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
  CHSC21836  Amsinckia Robert A. Schlising 1962-4-7 2150 Contra Costa In grass of roadside near Antioch Reservoir. Comment
  UC78278  Amsinckia grandiflora T. S. Brandegee May 1887 Contra Costa Judsonville 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
  JEPS17178  Amsinckia intermedia Francia Chisaki, Rimo Bacigalupi 1957-3-27 5759 Contra Costa 0.1 mi nw of crossing with Empire Avenue (along Neroly Road) 24 Comment
  UC1178260  Amsinckia intermedia Francia Chisaki 1954-3-25 574 Contra Costa Mount Diablo; Mount Diablo State Park Comment
  UCR265177  Amsinckia intermedia Barbara Ertter, Jim Jokerst, Dave Magney 1989-4-5 8130 Contra Costa San Joaquin Valley, Clifton Court Forebay, c. 15 air miles southwest of Stockton 0 Comment
  SD211561  Amsinckia intermedia Barbara Ertter, Jim Jokerst et al 1989-4-5 8130 Contra Costa Alkalai sink West and adjacent to Clifton Court Forebay, circa 15 airmiles Southwest of Stockton. Comment
  UC1084623  Amsinckia lunaris Francia Chisaki, Peter Kamb Ray 1952-5-4 2275 Contra Costa 1.5 mi e Orinda-Richmond road (leaving this road ca 1 mi n of Orinda); Bear Creek Road Comment
  UC762022  Amsinckia lunaris R. F. Hoover 1938-4-20 3178 Contra Costa lower end San Pablo Resevoir Comment
  UC762089  Amsinckia lunaris Robert F. Hoover 1936-4-16 975 Contra Costa East slope of Bald Park. Comment
  SD71393  Amsinckia lycopsoides John Thomas Howell 1933-5-14 11225 Contra Costa St. Mary's College Comment
  UC2027923  Amsinckia lycopsoides Barbara Ertter, Dan Norris 2001-4-15 17616 Contra Costa Diablo Foothills Regional Park, Stonegate Trail near Foothills Trail junction. Comment
  RSA0090978  Amsinckia scabra A. A. Heller 1941-3-23 15901 Contra Costa Mt. Diablo. Along the roadside about 2/3 up the mountain near a ditch. Comment
  UC2031455  Anagallis arvensis Barbara Ertter with David Gowen, Mike Park, Chris Thayer et al. 2014-4-12 21711 Contra Costa South tributary of Perkins Canyon at Prospectors Gap Road, Ginochio property on east side of Mount Diablo Comment
  UC691813  Ancistrocarphus filagineus Mary L. Bowerman 1932-4-9 1321 Contra Costa firebreak on large spur which heads into Sycsamore Canyon Inner Black Hills; Mount Diablo Comment
  UC1111009  Androsace elongata subsp. acuta Herbert L. Mason 1928-3-4 4166 Contra Costa Shell Ridge Comment
  CAS-BOT-BC400256  Anemopsis californica A. D. E. Elmer 1903-6-1 4870 Contra Costa Walnut Creek Comment
  UC407051  Anemopsis californica Rimo Bacigalupi 1926-4-30 1347 Contra Costa about 3 mi e of Walnut Creek (on Mount Diablo Road); Mount Diablo Road Comment
  RSA293388  Anemopsis californica Reino Alava 1958-5-25 2074 Contra Costa 1.5 miles N of Dublin on the rd to Walnut Creek. Comment
  UC692563  Angelica californica Mary L. Bowerman 1935-6-21 3149 Contra Costa Mount Diablo, e fork of Arroyo del Cerro Arroyo del Cerro; Mount Diablo, Arroyo del Cerro 274 Comment
  UC1795764  Anthriscus caucalis Barbara Ertter, Lisa Schultheis 1995-4-27 14015 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; north-facing open brushy slope with scattered oaks along extension of Valley View road. 182 Comment
  CAS-BOT-BC26282  Antirrhinum elmeri A. D. E. Elmer 1903-6-1 4809 Contra Costa Mount Diablo Comment
  JEPS5266  Antirrhinum kelloggii Mary L. Bowerman 1932-4-27 1390 Contra Costa w of Riggs Canyon (s face of Oyster Ridge); Mount Diablo, Oyster Ridge 335 Comment
  UC2032826  Aphanes arvensis Doran, Andrew Scott 2012-3-20 696 Contra Costa Second highest point on Brooks Island below rocky outcrop Comment
  UC12054  Aphanes occidentalis F. T. Bioletti 1892-4-8 Contra Costa Byron Comment
  UC691119  Aphanes occidentalis Mary L. Bowerman 1931-3-29 620 Contra Costa East Cave Point Ridge; Mount Diablo Comment
  UC691896  Apiastrum angustifolium Mary L. Bowerman 1930-6-7 289 Contra Costa Mount Diablo summit Mount Diablo Comment
  JEPS111632  Apocynum cannabinum D. G. Kelch 2004-7-9 04 .306 Contra Costa Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite 60 Comment
  JEPS60419  Aquilegia W. L. Jepson 1920-9-6 9084 Contra Costa Mt. Diablo Comment
  UC692182  Aquilegia formosa Mary L. Bowerman 1938-6-14 3686 Contra Costa Juniper Camp Mount Diablo Comment
  UC692183  Aquilegia formosa Mary L. Bowerman 1938-6-14 3686 Contra Costa Juniper Camp Mount Diablo Comment
  POM203649  Aquilegia formosa var. truncata J. T. Howell 1933-5-14 11253 Contra Costa Hills east of St. Mary's college Comment
  CDA19724  Arabis breweri unknown 1937-4-18 Contra Costa Northern California; Mt. Diablo. 0 Comment
  CDA37785  Arabis breweri unknown 1937-4-18 Contra Costa Northern California; Mt. Diablo. 0 Comment
  JEPS40121  Arceuthobium campylopodum Miss Ferguson 1920-1-1 Contra Costa Donner Canyon Mt. Diablo Comment
  UC1085342  Arceuthobium campylopodum Job Kuijt 1957-9-29 1425 b Contra Costa Rock City Mount Diablo Comment
  CAS-BOT-BC410130  Arceuthobium occidentale J Kuijt 1958-1-22 s.n. Contra Costa Mt. Diablo Comment
  RSA721736  Arceuthobium occidentale Barbara Ertter, Mary L. Bowerman, Lisa Schultheis, Kevin Hintsa 1995-10-22 14533 Contra Costa Three Springs Trail on northeast side of Mt Diablo, wood above ranch. 366 Comment
  JEPS98884  Arctostaphylos R. Gankin, J. Roof, R. Hildreth, R. Brewer, W. and I. Knight 1964-10-7 Contra Costa nature trail, head of Dan Cook Canyon Mount Diablo Comment
  UC727009  Arctostaphylos A. A. Heller 1942-3-15 16399 Contra Costa roadside bank along e-w road below Vine Hill Schoolhouse Comment
  UCR58375  Arctostaphylos andersonii var. auriculata Walter Knight, I. Knight 1980-6-14 3744 Contra Costa Original from Mt. Diablo State Park (Now in Tilden Regional Park Botanic Garden) Comment
  RSA29193  Arctostaphylos andersonii var. pallida Joseph A. Ewan 1934-1-7 8162 Contra Costa Head of San Leandro Creek above Oakland. Comment
  CAS-BOT-BC24106  Arctostaphylos auriculata Alice Eastwood 1903-2-22 3161 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC24113  Arctostaphylos auriculata Brandegee 1889-1-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC24116  Arctostaphylos auriculata Mary L. Bowerman 1935-3-24 2750 Contra Costa Lime Ridge, west face, between two major cuts of the Cowell Cement Company. Comment
  CAS-BOT-BC24117  Arctostaphylos auriculata C. F. Baker 1903-5-31 3161 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC24122  Arctostaphylos auriculata Gary D. Wallace 1974-12-26 1372 Contra Costa Mt. Diaablo St. Pk. off Summit Dr. along a ridge E of Curry Point; SE of Balancing Rock. 530 Comment
  CDA9744  Arctostaphylos auriculata D. G. Kelch, D. A. Weinstein 1995-3-6 s.n. Contra Costa Rock City. Mt. Diablo. Comment
  JEPS19888  Arctostaphylos auriculata W. L. Jepson 1922-7-14 9737 Contra Costa head of Sycamore Creek Mt. Diablo Comment
  RSA164647  Arctostaphylos auriculata Percy C. Everett 1963-11-19 24549 Contra Costa Mt Diablo. 457 Comment
  RSA622479  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27595 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments
Jan 30 2013
  RSA622480  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27601 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments
Jan 30 2013
  RSA622486  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27597 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
  UC1120859  Arctostaphylos auriculata R. W. Lundh 1932-8-24 138 Contra Costa 2 mi s Mt. Diablo (Rock City); Mt. Diablo Quadrangle 502 Comment
  UC692479  Arctostaphylos auriculata Mary L. Bowerman 1933-3-25 1773 Contra Costa top Pine Canyon Ridge (s-facing slope between the two forks); Mount Diablo, Emmons Canyon (off Stone Valley) Comment
  UCD50264  Arctostaphylos auriculata Roman Gankin 1968-11-14 1309 Contra Costa Ca. 300 yds. above the road at Somersville. Comment
  UCSB24345  Arctostaphylos auriculata Jensen, H. 1938-10-27 Contra Costa Head of Sycamore Creek, Mt. Diablo 518 Comment
  SEINET11998374  Arctostaphylos canescens subsp. malloryi W. Knight, Knight, I. 1988-1 6478 Contra Costa Tilden Regional Park, Regional Parks Botanic Garden, originally from Iron Mt. in Shasta Co 914 Comment
  CAS-BOT-BC23551  Arctostaphylos crustacea Walter Knight; Irja Knight 1980-3-16 3715 Contra Costa Sobrante Ridge between Heavenly Ridge Land and Castro Ranch Road. 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
  UC2029045  Arctostaphylos crustacea subsp. rosei Barbara Ertter with Linda Vorobik 2000-1-9 16888 Contra Costa Las Trampas Regional Wilderness in East Bay Hills west of Danville. Comment
  OBI14749  Arctostaphylos densiflora Robert F. Hoover 1962-3-23 8540 Contra Costa cultivated in Tilden Park Botanic Garden. Propagated from near Vine HIll School, Sonoma co. Comment
  OBI14772  Arctostaphylos glandulosa H. E. McMinn 1923-3-6 875 Contra Costa Sycamore Canon, Mt. Diablo Comment
  CAS-BOT-BC24659  Arctostaphylos glauca H. E. McMinn 1922-10-17 411 Contra Costa From Mitchell Canyon, Mt. Diablo. Comment
  JEPS38723  Arctostaphylos glauca W. L. Jepson 1916-11-12 6854 Contra Costa Mitchell Canyon Mt. Diablo Comment
  JEPS38729  Arctostaphylos glauca W. L. Jepson 1916-10-22 6853 Contra Costa Las Trampas Ridge Comment
  RSA164645  Arctostaphylos glauca P. C. Everett 1963-11-19 24551 Contra Costa Juniper Camp, Mt. Diablo. Comment
  UC1795672  Arctostaphylos glauca Barbara Ertter, Holly Forbes 1996-2-11 14548 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
  UC570417  Arctostaphylos glauca Chas. M. Belshaw 1936-10-26 2720 Contra Costa 3/4 mi ne North Peak; Mt. Diablo 609 Comment
  RSA632824  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27591 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  RSA632825  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27584 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  RSA632827  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27590 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  SJSU14146  Arctostaphylos manzanita M. Vickers 1975-2-6 Contra Costa near Nortonville between Concord & Pittsburg off Kirker Pass Rd 243 Comment
  UCD52165  Arctostaphylos manzanita Edward Lee 1936-1-12 1712 Contra Costa Canyon bottom; immediately south of Nortonville. 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
  JEPS19874  Arctostaphylos manzanita subsp. laevigata W. L. Jepson 1922-7-14 9736 Contra Costa Mount Diablo, Head of Sycamore Creek Head of Sycamore Creek; Mount Diablo, Head of Sycamore Creek Comment
  JEPS19875  Arctostaphylos manzanita subsp. laevigata W. L. Jepson 1922-5-23 9653 Contra Costa s slope Mt. Diablo (about halfway up) Comment
  UC1200412  Arctostaphylos manzanita subsp. laevigata Edward Lee 1936-1-12 1712 Contra Costa canyon bottom immediately s Nortonville Comment
  UC549754  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-3-19 682 Contra Costa Mount Diablo Comment
  UC549756  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-3-19 685 Contra Costa Mt. Diablo Comment
  UC909832  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-3-19 671 Contra Costa Mount Diablo Comment
  UCD51723  Arctostaphylos manzanita subsp. laevigata H. A. Jensen 1938-10-27 451 Contra Costa Head of Curry Canyon. 518 Comment
  SEINET3411014 Image available Arctostaphylos manzanita subsp. laevigata Lewis S. Rose 1934-2-28 Contra Costa Rocky shrubby hills, South slope Mt. Diablo, 8 miles NE Danville, Contra Costa County, California. Comment
  CAS-BOT-BC24383  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1932-9-5 1545 Contra Costa Mount Diablo. On meridian, which heads into Sycamore canyon: crest of ridge. Comment
  CAS-BOT-BC24386  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1936-8-19 3530 Contra Costa Mount Diablo, Pine Canyon mouth, most northerly west-heading streamlet shown on topographic map (now dry). 167 Comment
  CAS-BOT-BC24387  Arctostaphylos manzanita subsp. manzanita Alice Eastwood; John Thomas Howell 1936-4-19 2129 Contra Costa Nortonville. Comment
  CAS-BOT-BC24394  Arctostaphylos manzanita subsp. manzanita Brandegee 1889-1-1 5 Contra Costa Antioch. Comment
  RSA164644  Arctostaphylos manzanita subsp. manzanita P. C. Everett 1963-11-19 24552 Contra Costa Mt. Diable, below Gibraltar Rock.Mt. Diablo. Comment
Read comments
Aug 10 2011
  UC1142931  Arctostaphylos pallida Beryl O. Schreiber 1938-9-18 2548 Contra Costa 0.5 mi ssw Round Top 335 Comment
  SEINET11987134  Arctostaphylos pungens subsp. laevigata W. Knight, Knight, I. 1980-1 3824 Contra Costa Tilden Botanic Garden, orig. from Mt. Diablo Comment
  UC1120106  Arctostaphylos tomentosa subsp. crustacea R. W. Lundh 1933-3-1 204 Contra Costa 1/2 mi n Pinehurst; Concord Quadrangle Comment
  UC1120116  Arctostaphylos tomentosa subsp. crustacea C. M. Belshaw 1936-2-16 1590 Contra Costa 2 1/2 mi nw Lafayette; Concord Quadrangle, Lafayette Ridge Comment
  UC1120143  Arctostaphylos tomentosa subsp. crustacea C. M. Belshaw 1936-2-16 1588 Contra Costa 2 1/2 mi nw Lafayette; Concord Quadrangle, Lafayette Ridge Comment
  UC549462  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 634 Contra Costa Moraga Ridge Comment
  SD58208  Aristolochia californica L. J. Barker 1932-3-27 Contra Costa Orinda-Bear Valley road just over the divide on Pinole side. Comment
  CAS-BOT-BC82385  Arnica discoidea Paul F. Covel 1938-5-8 1460 Contra Costa Summit Mt. Diablo Comment
  RSA94492  Arnica discoidea F. W. Peirson 1923-7-1 3919 Contra Costa Mt. Diablo Comment
  POM198283  Arrhenatherum elatius Jos Burtt Davy 1898-6-6 s.n. Contra Costa Berkeley Hills. Comment
Read comments
Sep 6 2010
  UC2070630  Artemisia biennis Barbara Ertter 2005-8-18 18640 Contra Costa Mudflats on SE side of San Pablo Reservoir in East Bay Hills, east of San Pablo Dam Road between San Pablo and Orinda, access between HQ and boat launching area [reservoir way down this year while being drained for seismic work on dam], with extensive Artemisia biennis. Comment
  LA202980  Artemisia californica J. A. Ewan; November 1934 9079 Contra Costa Wildcat Canyon, 0.75 mi. below Orinda road bridge Comment
  SEINET11853227  Artemisia californica M. T. Doutt 1930-1 105 Contra Costa Marsh Creek Comment
  UC1584696  Artemisia douglasiana Jerry Powell 1990-8-29 1591 Contra Costa Antioch National Wildlife Refuge Comment
  JEPS87910  Asarum caudatum Barbara Ertter, Chris Thayer 1993-5-7 11698 Contra Costa on Wildcat Canyon Road Hopkins Spring 1/2 mi se Inspiration Point (East Bay Municipal Utilities District Land e of Tilden Park); e of Tilden Park, Hopkins Spring 304 Comment
  UC543763  Asarum caudatum Herbert L. Mason 1925-9-27 2236 Contra Costa San Leandro Canyon (Redwood Canyon); Oakland Hills Comment
  UC691840  Asclepias fascicularis Mary L. Bowerman 1932-11-25 1667 Contra Costa Silver Spring Mount Diablo Comment
  UC691841  Asclepias fascicularis Mary L. Bowerman 1935-6-28 3162 Contra Costa Old Government Trail Mount Diablo 518 Comment
  CAS-BOT-BC180572  Astragalus asymmetricus Mrs. E. C. Wright 1917-6-1 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC180574  Astragalus asymmetricus M. K. Curran 1886-5-6 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC180573  Astragalus asymmetricus unspecified s.n. Contra Costa Marsh Creek near Mt. Diablo Comment
  POM181432  Astragalus asymmetricus I. L. Wiggins 1930-4-17 4562 Contra Costa Near Mountain House, Altamont Pass. Comment
  UC13350  Astragalus didymocarpus J. Burtt Davy 1895-4-7 934 Contra Costa Antioch Comment
  JEPS112423  Astragalus gambelianus Dean G. Kelch and Andrew G. Murdock 2005-4-2 05 .107 Contra Costa Alhambra Valley; county: Contra Costa; EBMUD land. North of intersection of Alhambra Valley Road and Castro Ranch Road. Comment
  UC2028334  Astragalus gambelianus Barbara Ertter 1991-5-5 9771 Contra Costa Black Diamond Mines Regional Preserve S. of Pittsburg, halfway up E ridge of Rose Hill above cemetery, level spot 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
  UC691076  Athysanus pusillus Mary L. Bowerman 1931-2-28 525 Contra Costa Fossil Ridge near Rock City (Mount Diablo); , Fossil Ridge 518 Comment
  CAS-BOT-BC16333  Athysanus unilateralis Alice Eastwood 1914-3-14 3766 Contra Costa Byron Springs. Comment
  UC217196  Atriplex argentea var. mohavensis H. M. Hall 1919-11-14 10972 Contra Costa Byron Byron (where road turns from highway to Springs Hog Wallows) Comment
  CAS-BOT-BC168537  Atriplex coronata H. M. Hall 1923-10-2 s.n. Contra Costa Byron Hot Springs Comment
  UC1601680  Atriplex coronata Katharine Brandegee 1907-5-3 Contra Costa between Antioch and Marsh Creek; between Antioch and Marsh Creek Comment
  UCD97358  Atriplex coronata Robert E. Preston; David Muth 1993-9-7 634 Contra Costa Briones Valley, 1 mile west of Marsh Creek Reservoir. 62 Comment
  UCD97412  Atriplex fruticulosa Robert E. Preston; Eva Buxton 1994-8-4 674 Contra Costa east end of Briones Valley, west of Marsh Creek Reservoir. 60 Comment
  JEPS111798  Atriplex lentiformis A. G. Murdock 2004-6-4 320 Contra Costa Pacheco Marsh On east end of diked marsh near road, only in highest point of old marsh (now dry ground) 5 Comment
  UC1948958  Atriplex prostrata William J. Ferlatte, L. Maynard Moe 1970-4-27 1218 Contra Costa San Francisco Bay: Red Rock Island Comment
  JEPS111808  Atriplex triangularis D. G. Kelch 2003-8-13 03 .95 Contra Costa Martinez Marsh 1 Comment
  CDA1747  Avena fatua G. D. Barbe 1983-5-22 4081 Contra Costa Mount Diablo State Park, along fire road north of Juniper Campground. Comment
  CDA19821  Avena fatua P. Akers 2002-5-11 s.n.- 1 Contra Costa Northern California; Mt Diablo Summit Trail at water tank picnic area. 873 Comment
  CDA23567  Avena fatua D. G. Kelch, D. A. Weinstein 2008-4-15 8 .043 Contra Costa Carquinez Strait; S Port Costa along Mckewen Rd. Comment
  UC691223  Avena fatua Mary L. Bowerman 1935-4-19 2853 Contra Costa West road 3.5 mi from entrance; Mount Diablo 381 Comment
  CDA10377  Baccharis glutinosa D. G. Kelch, A. G. Murdock 2003-8-13 3 .138 Contra Costa Carquinez Strait; Pinole Creek. Comment
  CDA37435  Baccharis glutinosa D. G. Kelch, Mike Perlmutter 2011-9-23 11 .753 Contra Costa Immediately north of Discovery Bay. Comment
  JEPS104734  Baccharis pilularis John L. Morrison 1936-8-30 1848 Contra Costa Shasta Road, Wildcat Canyon Comment
  CDA32857  Baccharis salicifolia D. G. Kelch 2010-10-5 10 .418 Contra Costa The Delta; Just east of Antioch bridge. Comment
  UCD73335  Baccharis salicifolia Chuck Hughes 2008-4-22 26 Contra Costa Marsh Creek at County Jail on Marsh Creek Road. 179 Comment
  UC202943  Baccharis salicifolia subsp. salicifolia Chesnut and Drew 1889-4-17 Contra Costa Clayton Comment
  UC30399  Baccharis salicifolia subsp. salicifolia H. N. Bolander 1866-4-1 6162 Contra Costa near Mount Diablo Comment
  JEPS102908  Balsamorhiza deltoidea Barbara Ertter with Holly Forbes 1997-4-20 15564 Contra Costa NE base of Eagle Ridge, Back Creek Trail to Coulter Pine Trail Mount Diablo 213 Comment
  JEPS32259  Balsamorhiza deltoidea R. F. Hoover 1939-4-13 4015 Contra Costa head of Markley Canyon (w branch) Markley Canyon Comment
  UC761940  Balsamorhiza deltoidea R. F. Hoover 1939-4-13 4015 Contra Costa head of Markley Canyon, (w branch) Markeley Canyon Comment
  CAS-BOT-BC16379  Barbarea orthoceras John Thomas Howell 1976-5-20 s.n. Contra Costa Mount Diablo. Below Juniper Camp. Comment
  UC691254  Barbarea orthoceras Mary L. Bowerman 1933-4-22 1899 Contra Costa w of Cave Point (s-face); Mount Diablo, Inner Black Hills Comment
  RSA666351  Bassia hyssopifolia Barbara Ertter, Brad Olson, Lynne Hosley, A. Youngson 1991-10-20 10885 Contra Costa Dow Wetlands Preserve, just W of Antioch marina. Comment
  JEPS11296  Bellardia trixago Joseph P. Tracy 1921-5-17 5566 Contra Costa near Martinez; Northern Coast Ranges 30 Comment
  JEPS21967  Bellardia trixago G. Thomas Robbins with S. Galen Smith 1958-6-2 3849 Contra Costa just e Hercules city boundary (s and above Refugio Valley, slope along Franklin Canyon Road (State Highway 4)) 18 Comment
  UCD35137  Bellardia trixago Beecher Crampton 1949-6-5 468 Contra Costa near Muir. Comment
  UC691754  Bellardia trixago M. L. Bowerman 1938-5-25 3632 Contra Costa 1.6 miles from N gate where stream crosses road N Road 152 Comment
  UC692319  Berula erecta Mary L. Bowerman 1930-10-4 479 Contra Costa Mount Diablo, Maple Spring, by North Road Maple Spring; Mount Diablo, Maple Spring Comment
  SEINET11861660  Bidens laevis L. S. Rose 1938-10-28 38311 Contra Costa Byron Comment
  NY31037  Blennosperma nanum A. M. Carter 1937-3-28 1225 Contra Costa 15 miles east of Concord 152.4 Comment
  UC201362  Blennosperma nanum var. nanum Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  UC1119055  Blepharizonia laxa G. T. Nordstrom 1937-10-28 1403 Contra Costa 1.6 mi nne of Somersville (Mt. Diablo); Mt. Diable 182 Comment
Read comments
Aug 6 2012
  CAS-BOT-BC100336  Blepharizonia plumosa R. F. Hoover 1937-9-2 2711 Contra Costa 1 mi. w. of Antioch Comment
  CAS-BOT-BC100341  Blepharizonia plumosa Miss H. A. Walker 1916-8-28 3922 Contra Costa Los Medanos, near Antioch Comment
  JEPS18824  Blepharizonia plumosa R. F. Hoover 1935-9-7 715 Contra Costa Walnut Creek Comment
  RSA332608  Blepharizonia plumosa M. K. C 1885-08 s.n. Contra Costa Antioch Comment
Read comments
Dec 16 2012
  UC2029131  Blepharizonia plumosa Barbara Ertter 2003-7-6 18242 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, south end of Carbondale Trail. Comment
  UC761865  Blepharizonia plumosa R. F. Hoover 1937-9-2 2708 Contra Costa Walnut Creek Comment
  CAS-BOT-BC15964  Boechera breweri subsp. breweri J. W. Congdon 1896-5-8 s.n. Contra Costa Mount Diablo. Comment
  UC186865  Boechera breweri subsp. breweri J. W. Congdon 1896-5-8 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
  CAS-BOT-BC15959  Boechera breweri subsp. breweri E. W. Hicks 1917-3-24 111 Contra Costa Mount Diablo. On the western slope of the mountain. 1067 Comment
  CAS-BOT-BC15965  Boechera breweri subsp. breweri H. M. Hall 1901-4-5 1757 Contra Costa Region of San Francisco. Mount Diablo. Summit. Comment
  JEPS111893  Bolboschoenus maritimus D. G. Kelch 2004-6-6 04 .230 Contra Costa Martinez - Train Station In large fill area North of Frontage Road. In marsh East of Martinez and I-680 2 Comment
  CHSC79610  Bolboschoenus maritimus subsp. paludosus G. F. Hrusa; D. Crowe 1998-5-8 14395 Contra Costa Sacramento-San Joaquin River Delta. At E end of Dow Chemical property in Pittsburg. 15 Comment
  UCD140023  Bolboschoenus maritimus subsp. paludosus G. F. Hrusa; D. Crowe 1998-5-8 14366 Contra Costa Sacramento-San Joaquin River Delta. On Dow Chemical property at Pittsburg. 10 Comment
  CDA42003  Boschniakia strobilacea B. Hosman 1974-6-2 s.n. Contra Costa in the native area 0 Comment
  CAS-BOT-BC95322  Bowlesia incana James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  UC566857  Bowlesia incana H. L. Mason 1928-4-29 4419 Contra Costa Mount Diablo, Sycamore Canyon Sycamore Canyon; Mount Diablo, Sycamore Canyon Comment
  UC691789  Bowlesia incana Mary L. Bowerman 1933-6-7 2259 Contra Costa Mount Diablo, North Peak Ridge North Peak Ridge; Mount Diablo, North Peak Ridge 1021 Comment
  UC692371  Bowlesia incana Mary L. Bowerman 1935-5-1 2937 Contra Costa Mount Diablo, West Road 2 mi from entrance, North Road Mount Diablo 182 Comment
  UC2028574  Bowlesia incana Barbara Ertter with Stu Garrett 1997-3-29 15538 Contra Costa West side Mount Diablo, north end of Mothers Trail. Comment
  UC691083  Brassica nigra Mary L. Bowerman 1938-5-25 3633 Contra Costa Mount Diablo. North Road 2 miles from North Gate. 182 Comment
  CAS-BOT-BC36724  Brassica rapa R. E. Frenkel 1963-12-4 313 Contra Costa On California Highway 21, Market Plaza Center, Alamo. 79 Comment
  CAS-BOT-BC36725  Brassica rapa R. E. Frenkel 1964-9-19 851 Contra Costa On California Highway 21, Market Plaza Center, Alamo. 79 Comment
  CAS-BOT-BC106324  Brickellia californica R. Bacigalupi 1922-9-24 s.n. Contra Costa Mitchell Canyon - Mt. Diablo Comment
  UC2027845  Brickellia californica Barbara Ertter with Mary Bowerman 1996-11-1 15403 Contra Costa North base of Mount Diablo, lower Donner Creek between trailhead and cabin site. Comment
  UC2070488  Brickellia californica Barbara Ertter 2002-8-24 18038 Contra Costa Lower Perkins Canyon on NE base of Mount Diablo. Comment
  CDA28863  Briza minor D. G. Kelch 2006-5-5 6 .134 Contra Costa East Bay; Wildcat Canyon Regional Park. Near Wildcat Canyon Road terminus. Comment
  UC650431  Brodiaea terrestris subsp. terrestris Ira L. Wiggins 1930-4-17 4573 Contra Costa near Byron Comment
  UCD60268  Bromus Beecher Crampton 1960-3-29 5481 Contra Costa El Cerrito, corner of Lassen St. and Carlson Blvd. 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
  UC1948971  Bromus carinatus William J. Ferlatte, L. Maynard Moe 1970-4-27 1237 Contra Costa San Francisco Bay: Red Rock Island Comment
  CAS-BOT-BC156063  Bromus diandrus Alice Eastwood 1921-4-18 10262 Contra Costa Antioch. Comment
  UC606748  Bromus diandrus Edward Lee 1936-4-19 1976 Contra Costa San Francisco, Red Rock Red Rock; San Francisco, Red Rock Comment
  CHSC21617  Bromus hordeaceus Willis Ball 1974-4-21 429 Contra Costa Contra Loma Regional Park. In area #6. On e side of Contra Loma Blvd. ca. 300 yds. s of main boat ramp at s end of lake. One yd. off road. 45 Comment
  UC1818908  Bromus hordeaceus Barbara Ertter, Mary Bowerman et al. 1995-5-7 14036 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, grassland flat near ponds. Comment
  UCD164654  Bromus hordeaceus Henry House 1995-4-30 1995- 29 Contra Costa Approximately 1 km west of Walnut Blvd, about 0.5 km south of Marsh Creek Road. 60 Comment
  UCD58674  Bromus hordeaceus L. S. Smith 1914-5-9 UCX 283 Contra Costa Mt. Diablo. West slope. Comment
  UCD59002  Bromus madritensis Beecher Crampton 1956-5-14 3395 Contra Costa Marsh Creek Road. 3.7 miles southeast of Clayton. Comment
  SEINET191355 Image available Bromus madritensis P. F. Knowles B 139 Contra Costa CULTIVATED ; Briones Hills greenhouse Davis. Comment
  UC692334  Bromus madritensis subsp. madritensis Mary L. Bowerman 1935-5-3 2962 Contra Costa Mount Diablo, Sloan Road Mount Diablo; , Sloan Road 487 Comment
  UC692336  Bromus madritensis subsp. madritensis Mary L. Bowerman 1932-4-27 1371 Contra Costa canyon w of Riggs Canyon (s face of Oyster Ridge, Mount Diablo); Mount Diablo, Oyster Ridge 289 Comment
  UC692345  Bromus madritensis subsp. rubens Mary L. Bowerman 1933-3-18 1751 Contra Costa Mount Diablo, Meridian Peak, (a little east of the meridian) Meridian Peak; Mount Diablo, Meridian Peak 548 Comment
  UCD59573  Bromus rubens P. B. Kennedy 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  UCD59584  Bromus rubens P. B. Kennedy 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  CDA15253  Bromus stamineus G. F. Hrusa, D. Crowe 1998-5-8 14384 Contra Costa Sacramento Delta; Annual on edge of +- disturbed roadside adjacent to wetland in Dow Ecological Reserve on Dow Chemical property at Pittsburg. Uncommon here. Comment
  RSA720800  Bromus tectorum Mary L. Bowerman 1978-5-26 s.n. Contra Costa Mount Diablo. N of Lower Summit parking lot. Comment
  JEPS111868  Cakile maritima D. G. Kelch 2004-7-9 04 .313 Contra Costa Rodeo Shoreline 0 Comment
  JEPS22094  Cakile maritima G. Thomas Robbins 1958-7-19 3905 Contra Costa about 3/4 mi s of Pt. San Pablo Potrero San Pablo, Richmond Point San Pablo Potrero; San Francisco Bay, Point Orient Comment
  CDA23935  Calandrinia ciliata D. G. Kelch 2007-4-1 7 .11 Contra Costa Carquinez Strait; Pt. Pinole. Comment
  JEPS68965  Calandrinia ciliata Edward Lee 1935-3-10 1298 Contra Costa Nortonville; (s watershed of Kirker Creek) Comment
  JEPS99971  Calandrinia ciliata G. Smick 2003-4-8 GAS 134 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  SBBG1914  Calandrinia menziesii J. M. Tucker 1946-3-24 1383 Contra Costa hills between Nortonville and Somersville Comment
  JEPS108319  Calendula arvensis David Gowen 2005-2-23 166 Contra Costa Mt. Diablo State Park. Juniper Trail just south of Silver Spring. Comment
  UC570769  Callitriche marginata H. L. Mason 1932-3-20 6852 Contra Costa Deer Valley; Briones Road Comment
  JEPS102906  Calochortus albus Barbara Ertter with John Ginochio 2002-6-1 17938 Contra Costa Arroyo del Cerro on NW side of mountain, above connector road between Government Road and Olofson Homestead Mount Diablo Comment
  UCD164657  Calochortus luteus Henry House 1995-5-16 1995- 24 Contra Costa Adjacent to Highway 113, about 0.2 km south of Creek Road. 6 Comment
  CAS-BOT-BC490528  Calochortus luteus Mary L. Bowerman 1933-6-14 2281 Contra Costa Inner Black Hills west of 1970 Comment
  UC2027929  Calochortus luteus Barbara Ertter with Dorothy Frantz 2001-5-10 17640 Contra Costa Diablo Foothills Regional Park, Pine Creek south of Castle Rock Recreation Area. Comment
  CAS-BOT-BC132498  Calochortus pulchellus A. D. E. Elmer 1903-6-1 4631 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC132501  Calochortus pulchellus Carl Purdy 1899-5-15 s.n. Contra Costa Mt. Diablo Comment
  HSC93902  Calochortus pulchellus C. Newberry 1994-4-30 7250 Contra Costa Mt. Diablo State Park, trail from Mitchell Canyon Parking to Donner Creek 900 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
  RSA215950  Calochortus pulchellus D. E. Breedlove 1970-4-18 17425 Contra Costa At the north edge of Lafayette above Laurel Drive 244 Comment
  SBBG52901  Calochortus pulchellus J. D. Hobson 1962-3-9 36 Contra Costa Mt Diablo Comment
  UC204208  Calochortus pulchellus A. D. E. Elmer Jun 1903 4631 Contra Costa Mount Diablo Comment
  UC3462  Calochortus pulchellus W. H. Brewer 1862-5-26 1163 Contra Costa near Mount Diablo Comment
  UC767890  Calochortus pulchellus R. F. Hoover 1938-5-4 3339 Contra Costa Marsh Creek canyon Marsh Creek Comment
  JEPS127831  Calochortus umbellatus Adam C. Schneider 2014-5-15 447 Contra Costa Mt. Diablo State Park: Alongside Blackhawk Ridge Trail, south of its divergence from Knobcone Pine Trail. Comment
  UC1601662  Calochortus umbellatus W. H. Brewer 1862-5-1 1035 Contra Costa s of Camp 69; Walnut Creek Comment
  JEPS122393  Calochortus venustus Nisrine Machaka-Houri with Gracie Benson-Martin 2014-5-17 NG 13 Contra Costa Golden Lily Trail, Mitchell Canyon, Mt. Diablo State Park. Comment
  UC2027939  Calochortus venustus Barbara Ertter with Tony Morosco and other CNPS members 2001-5-6 17623 Contra Costa Northwest flank of Mount Diablo, Globe Lily Trail paralleling Mitchell Canyon Road. Comment
  UC697175  Calycadenia truncata Mary L. Bowerman 1936-9-1 3536 Contra Costa between North Peak and the mouth of Perkins Canyon North Peak; Mount Diablo 487 Comment
  UC2027952  Calycadenia truncata Barbara Ertter with Joanne Kerbavaz and Mary Bowerman 2000-8-20 17512 Contra Costa North side Mount Olympia in Mount Diablo State Park, bulldozed site of former occupation at Zippe Spring. Comment
  UC2029105  Calycadenia truncata Barbara Ertter 2000-7-29 17441 Contra Costa Donner Basin on north side of Mount Diablo, ca halfway up Middle Trail. Comment
  UC691543  Calycadenia truncata Mary L. Bowerman 1933-8-26 2412 Contra Costa w of Lower Pine Spring; Mount Diablo Comment
  CAS-BOT-BC224751  Calystegia malacophylla subsp. pedicellata John Thomas Howell 1942-5-24 16964 Contra Costa Near Deer Flat, Mt. Diablo Comment
  UC691851  Calystegia purpurata Mary L. Bowerman 1931-4-4 658 Contra Costa North Road 4.5 mi from North Gate Mount Diablo (bank above road); Mount Diablo 396 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
  UCD126157  Calystegia sepium Malcolm A. Nobs; S. Galen Smith 1949-7-8 941 Contra Costa Otto's Black Bass Resort, 4 miles N of Kingston. Comment
  JEPS125633  Calystegia sepium subsp. binghamiae Daniel Slakey with CNPS Volunteers 2015-9-12 227 Contra Costa Browns Island, northern part of Crooked Slough. Comment
  UC1191638  Calystegia sepium subsp. binghamiae Malcolm A. Nobs, S. Galen Smith 1949-7-8 941 Contra Costa 4 mi n Kingston (Otto's Black Bass Resort); n of Kingston, Otto's Black Bass Resort Comment
  CDA15226  Calystegia sepium subsp. limnophila G. F. Hrusa, D. Crowe 1998-5-8 14355 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg. 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
  CHSC28747  Calystegia subacaulis Robert A. Schlising 1976-5-26 3180 Contra Costa E of Mount Diablo and NW of Livermore at summit of Black Hills on Morgan Territory Rd; 9.8 mi S of jct with Marsh Creek Rd. 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
  UC198869  Camissonia campestris subsp. campestris Chesnut and Drew 1887-4-18 Contra Costa Antioch Comment
  UC635287  Camissonia campestris subsp. campestris H. L. Mason 1929-3-31 5153 Contra Costa Antioch San Joaquin River (sand dike along river) Comment
  RSA135377  Camissonia contorta Volney Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley. Comment
  RSA41303  Camissonia micrantha Robert F. Hoover 1935-3-10 314 Contra Costa Antioch sand-dunes Comment
  JEPS111561  Camissonia ovata A. G. Murdock 2004-3-19 221 Contra Costa Luzon: Sycamore Ave. just east of Rodeo/Hercules where train crosses Highway 4 (Luzon). Top of ridge to south of road. 60 Comment
  UC2062661  Camissonia ovata Barbara Ertter 2002-5-16 17854 Contra Costa Richmond Field Station (UC-Berkeley). Comment
  UC692452  Camissoniopsis intermedia Mary L. Bowerman 1933-5-25 2182 Contra Costa steep s-facing slope at w end of s face of ridge Mount Diablo, Oyster Ridge 411 Comment
  UC20485  Camissoniopsis micrantha W. H. Brewer 1862-5-22 1137 Contra Costa foothills e Mount Diablo Comment
  SEINET10972314  Campanula exigua Alice Eastwood 1897-5-31 Eastwood s.n. Contra Costa Mount Diablo Comment
  UC691065  Capsella bursa-pastoris Mary L. Bowerman 1931-2-8 505 Contra Costa Mount Diablo, West Road(=North Rd), a few mi from entrance Mount Diablo 396 Comment
  CAS-BOT-BC37029  Capsella bursa-pastoris Mary L. Bowerman 1931-2-8 505 Contra Costa Mount Diablo. North Road a new [few?] miles from North Gate. 396 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
  UC480597  Cardamine californica Carl Meyer 1928-2-22 289 Contra Costa Mt. Diablo Comment
  UCD114186  Cardamine californica Morris Halperin 1929-4-21 s.n. Contra Costa St. Mary's College campus. Comment
  UCSB2297  Cardamine californica Kamb, Peter; Chisaki, Francia 1950-3-18 Contra Costa Saddle between North and South Peaks of Mt. Diablo 883 Comment
  UC1795657  Cardamine hirsuta Barbara Ertter, Gary Schoolcraft 1996-4-7 14576 Contra Costa Molate Beach Park on San Francisco Bay north of San Rafael Bridge; south end of parking area, in partial shade of planted shrub. Comment
  UC2028995  Cardamine oligosperma Barbara Ertter 2000-3-30 16912 Contra Costa North side of Mount Diablo, Deer Flat at head of Mitchell Canyon. Comment
  UCD114568  Cardamine oligosperma Terri Williamson 1990-4-10 1 Contra Costa 212 Poshard Street, Pleasant Hill. 12 Comment
  CDA33553  Cardaria chalepensis Guise/McClure 2010-5-24 PDR# 1645228 Contra Costa Pleasanton; Old School Road. 0 Comment
  CDA40558  Cardaria chalepensis V. Guise & B. Slate 2014-4-3 PDR# 070 P06223872 Contra Costa Concord; end of Crystal Ranch Road, Save Mt. Diablo property. 0 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
  JEPS99960  Carduus pycnocephalus subsp. pycnocephalus G. Smick 2003-4-10 GAS 137 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1555379  Carduus pycnocephalus subsp. pycnocephalus Jerry Powell 1988-5-18 1536 Contra Costa Pt. Molate, w Richmond Richmond, Pt. Molate Comment
  UC517456  Carduus pycnocephalus subsp. pycnocephalus J. Thomas Howell 1933-5-14 11246 Contra Costa hills e of St. Mary's College Comment
  UC582525  Carduus pycnocephalus subsp. pycnocephalus Joseph P. Tracy 1934-4-30 13188 Contra Costa roadside between Moraga and Lafayette Moraga 152 Comment
  JEPS79443  Carduus tenuiflorus Edward Lee with Annetta Carter 1935-6-13 1431 Contra Costa s Richmond Panhandle Boulevard; Richmond Comment
  UC691374  Carduus tenuiflorus Mary L. Bowerman 1932-5-6 1412 Contra Costa on floor of Mitchell Canyon; Mount Diablo, Mitchell Canyon 213 Comment
  UC2028216  Carduus tenuiflorus Barbara Ertter with Christopher Baysdorfer 1998-5-10 16130 Contra Costa West-center Lime Ridge Open Space northwest of Mount Diablo. Comment
  CAS-BOT-BC17999  Carex aquatilis var. dives Walter Knight; Joanne Dean 1978-8-14 3142 Contra Costa Browns Island. Comment
  UC691965  Carex barbarae Mary L. Bowerman 1983-9-9 2433 Contra Costa Frog Pond, W side Mount Diablo Comment
  UC70611  Carex densa Jos. Burtt Davy 1899-4-19 7843 Contra Costa Glorietta; Inner Coast Range Mountains Comment
  UC2070636  Carex densa Barbara Ertter 2002-9-13 18070 Contra Costa East end Olympia Trail at Dunn Creek crossing, NE base of Mount Diablo near intersection of Marsh Creek Road and Morgan Territory Road. Comment
  SEINET11263180  Carex globosa Barbara Ertter, A. T. Whittemore; Joanne Kerbavaz 2001-5-22 17650 Contra Costa South side of Mount Diablo, headwaters of West Branch Alamo Creek ESE of Knobcone Point, below powerline at end of Knobcone Point road.; 0 457 Comment
  UC2028269  Carex globosa Barbara Ertter 1999-6-12 16708 Contra Costa Black Hawk Ridge Road between Knobcone Point Road and NE fork of Sycamore Creek, South side of Mount Diablo. Comment
  CDA32037  Carex gracilior D. G. Kelch 2006-3-18 6 .104 Contra Costa 2 km N-NW of Orinda Village. NW of corner of San Pablo Dam Rd & Bear Valley Rd. 0 Comment
  SEINET10584363  Carex nudata M. Bowerman Bowerman s.n. Contra Costa Mount Diablo. Sycamore Creek Canyon. Forming clumps in rocky streambed. 244 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
  UC1795880  Carex praegracilis Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14672 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay; wetlands behind facilities at base of ''D'' road. Comment
  CAS-BOT-BC117551  Carex serratodens Miss Mary Leolin Bowerman 1933-4-15 1856 Contra Costa Canyon south of Arroyo del Cerro Comment
  UC823230  Carex serratodens Lewis S. Rose 1935-5-16 35163 Contra Costa Mt. Diablo Comment
  UC8054  Carex subbracteata Brewer 1862-4-30 1012 Contra Costa Walnut Creek Comment
  JEPS119399  Carex tumulicola J. Greenhouse with A. Doran, D. Kelch, H. Bartosh, J. Game, et al. 2012-3-20 5142 Contra Costa Brooks Island Comment
  JEPS74803  Castilleja L. R. Heckard, T. I. Chuang and R. C. Bacigalupi 1975-5-7 4011 Contra Costa ca 0.5 mi e Pinole (just e of Interstate 80, along main route of Santa Fe RR) Comment
  JEPS43525  Castilleja affinis subsp. affinis August Hartman 1960-4-19 6 D Contra Costa North Gate Road on Mt. Diablo; Mt. Diablo 609 Comment
  UC1818874  Castilleja affinis subsp. affinis Barbara Ertter, Brad Olson 1994-5-7 12753 Contra Costa Send Pt. Molate Beach Park west of Richmond north of San Rafael Bridge, edge of San Francisco Bay. Hillside Comment
  UC400170  Castilleja affinis subsp. affinis Ynes Mexia 1929-4-21 2384 Contra Costa Moraga Valley Comment
  UC27158  Castilleja ambigua subsp. ambigua Jos. Burtt Davy 1900-6-7 6666 Contra Costa Martinez Comment
  JEPS100151  Castilleja attenuata G. Smick 2003-4-8 GAS 125 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site 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
  JEPS15210  Castilleja exserta subsp. exserta C. M. Belshaw 1936-5-9 2082 Contra Costa 0.5 mi n Nortinville; Mt. Diablo Quad. 274 Comment
  UC673440  Castilleja exserta subsp. exserta H. L. Mason 1929-3-15 5059 Contra Costa about 5 mi from Brentwood (along Marsh Creek Road) Comment
  UC27223  Castilleja rubicundula subsp. lithospermoides J. Burtt Davy 1897-4-17 Contra Costa Point Isabel Comment
  UC691618  Castilleja rubicundula subsp. lithospermoides Mary L. Bowerman 1935-5-22 3035 Contra Costa n end Eagle Point ridge; Mount Diablo 289 Comment
  CHSC24923  Castilleja subinclusa subsp. franciscana M. A> Callahan 1976-4-11 6 Contra Costa 120 m ne of house at 1976 Mohawk Dr. Pleasant Hill on w slope. 132 Comment
  UC41762  Castilleja subinclusa subsp. franciscana J. P. Tracy 1900-3-24 616 Contra Costa Point Richmond; San Francisco Bay Region 15 Comment
  UC191001  Castilleja wightii Katharine Brandegee Contra Costa Rodeo Comment
  CAS-BOT-BC41035  Caulanthus flavescens Mary L. Bowerman 1935-4-22 2879 Contra Costa Mount Diablo. North Road 2 miles from North Gate. 213 Comment
  CAS-BOT-BC40509  Caulanthus lasiophyllus Edward Lee Greene 1887-4-17 s.n. Contra Costa Antioch. Comment
  POM11961  Caulanthus lasiophyllus var. rigidus Katherine Brandegee s.n. Contra Costa Byron Hot Springs. Comment
  CAS-BOT-BC48838  Ceanothus cuneatus Mary L. Bowerman 1931-2-28 527 Contra Costa Near top of south road Comment
  UCD111741  Ceanothus cuneatus W. Ebeling 1929-3-19 s.n. Contra Costa Mount Diablo. Comment
  UC18269  Ceanothus cuneatus var. cuneatus State Survey 1862-5-7 1062 Contra Costa summit of Mt. Diablo Comment
  UC692592  Ceanothus cuneatus var. cuneatus Mary L. Bowerman 1932-9-3 1531 Contra Costa Muir Area, Mount Diablo Comment
  UC692617  Ceanothus cuneatus var. cuneatus Mary L. Bowerman 1933-4-9 1843 Contra Costa w fork of Dannor Canyon, Mount Diablo Comment
  JEPS42191  Ceanothus oliganthus var. sorediatus W. L. Jepson 1908-4-4 3003 Contra Costa West Branch of San Pablo Creek Berkeley hills Comment
  JEPS42292  Ceanothus oliganthus var. sorediatus W. L. Jepson 1907-4-26 2465 Contra Costa Mitchell Creek Mt. Diablo Comment
  UC1281425  Ceanothus oliganthus var. sorediatus H. E. McMinn 1922-5-30 108 Contra Costa near Pinehurst (canyon though which runs the Oakland Antioch RR) Comment
  UC2013017  Centaurea calcitrapa Barbara Ertter with Laura Fujii 1990-7-21 9400 Contra Costa Briones Regional Park, Briones Hills W of Pleasant Hill, weedy field along Homestead Valley trail. Comment
  JEPS44120  Centaurea melitensis W. L. Jepson 1922-7-9 9735 Contra Costa El Cerrito salt marsh El Cerrito Comment
  JEPS111970  Centaurium davyi D. G. Kelch 2004-4-26 04 .149 Contra Costa Point Pinole Pt. Pinole 1 Comment
  UC2042753  Centaurium tenuiflorum Barbara Ertter with Brad Olson and Lynne Hosley 1993-11-14 12320 Contra Costa Skyline Trail in East Bay Hills west of Orinda, above Caldecott Tunnel between Fish Ranch Road and Roundtop. Comment
  CAS-BOT-BC288538  Centromadia fitchii David D. Keck 1933-11-2 2616 Contra Costa 1 mile E of Nichols, N part of county Comment
  CAS-BOT-BC288542  Centromadia fitchii L. S. Rose 1941-10-13 41464 Contra Costa 1 mile E of Walnut Creek 50 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
  JEPS95217  Centromadia parryi subsp. congdonii R. E. Preston 1998-10-9 1180 Contra Costa Collier Canyon and adjacent valleys, in valley bottom, lower slopes, and saddles. 228 Comment
  UC1069557  Centromadia parryi subsp. congdonii H. S. Yates 1934-9-2 4072 Contra Costa 1 mi ne Danville; Mt. Diablo Quadrangle Comment
  UCD130137  Centromadia parryi subsp. congdonii Robert E. Preston 1998-10-6 1172 Contra Costa on west side of Camino Tassajara, 0.5 to 0.9 miles south of Highland Road. 176 Comment
  UCD19693  Centromadia pungens Donald W. Kyhos 1963-4-11 s.n. Contra Costa 3.6 miles south of Byron Hwy and Byron Hot Springs Rd. Comment
  CAS-BOT-BC279196  Centromadia pungens subsp. pungens J McMurphy 1909-5-20 s.n. Contra Costa Antioch Comment
  JEPS35034  Centromadia pungens subsp. pungens W. L. Jepson 1895-9-14 Contra Costa Walnut Creek Comment
  UC30957  Centromadia pungens subsp. pungens Jos. Burtt Davy 1900-6-7 6661 Contra Costa between Martinez and Pacheco Comment
  CAS-BOT-BC279187  Centromadia pungens subsp. pungens David D. Keck 1932-7-7 1736 Contra Costa Just east of Nichols Comment
  UC1594163  Cephalanthus occidentalis var. californicus Jerry Powell 1991-6-11 1607 Contra Costa Antioch National Wildlife Refuge Comment
  UC1948960  Cerastium glomeratum William J. Ferlatte, L. Maynard Moe 1970-4-27 1233 Contra Costa San Francisco Bay: Red Rock Island Comment
  CAS-BOT-BC137010  Cercocarpus betuloides var. betuloides Mary L. Bowerman 1930-6-14 325 Contra Costa Mount Diablo. Summit area Comment
  UC34798  Chaenactis glabriuscula var. glabriuscula W. C. Blasdale 1893-5-13 Contra Costa Antioch Comment
  JEPS9018  Chamaesyce ocellata subsp. ocellata W. L. Jepson 1901-10-11 13926 Contra Costa Mount Diablo Comment
  JEPS111950  Chamaesyce serpens D. G. Kelch 2004-5-21 04 .221 Contra Costa Crockett - Edwards Canyon Edwards Creek EBRP Staging Area near Greenhouse 24 Comment
  UC2062612  Chamaesyce serpens Barbara Ertter with John Ginochio 2002-6-1 17945 a Contra Costa Ginochio house on south side of North Gate Road on NW base of Mount Diablo, lower Arroyo del Cerro. 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
  JEPS107063  Cheilanthes intertexta J. Greenhouse with Kevin Hintsa 2004-4-5 5086 Contra Costa Mt. Diablo, Fire Interpretive Trail, Devil's Pulpit 1088 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
  UC691917  Chenopodium berlandieri Mary L. Bowerman 1932-9-3 1537 Contra Costa roadside just below Meridian Peak summit; Mount Diablo Comment
  POM300604  Chenopodium berlandieri var. sinuatum Mary L. Bowerman 1932-8-27 1525 Contra Costa South Road below Rock City. Comment
  UC1199816  Chenopodium californicum Herbert L. Mason 1929-3-31 5158 Contra Costa Antioch Sacramento River Comment
  UC322989  Chenopodium vulvaria A. M. Burton 1927-8-26 Contra Costa near Concord Comment
  JEPS75512  Chlorogalum pomeridianum var. pomeridianum P. F. Yorks 1975-6-29 460 Contra Costa n. Briones Reservoir (ca. 1.5 km. s. of Bear Creek Rd. on Hampton Rd. in Hampton Rd. Natural Reserve); Hampton Rd. Natural Reserve 200 Comment
  JEPS57664  Chorizanthe membranacea W. L. Jepson May 23 1891-May 24 1891 Contra Costa Mount Diablo Comment
  UC692212  Chorizanthe membranacea Mary L. Bowerman 1931-5-7 803 Contra Costa Mount Diablo just below crest s side North Peak Ridge; Mount Diablo, North Peak ridge 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
  OBI73069  Cirsium occidentale David J. Keil, with Barbara Ertter et al. 2000-6-18 28816 Contra Costa Mount Diablo State Park. Fire interpretive trail around Mt. Diablo summit. 1128 Comment
  CAS-BOT-BC288046  Cirsium occidentale var. venustum L. R. Abrams 1921-5-25 8018 Contra Costa Mt. Diablo Comment
  UC691383  Cirsium occidentale var. venustum Mary L. Bowerman 1931-5-23 899 Contra Costa Oyster Point Mount Diablo, Oyster Point Comment
  JEPS41056 Image available Cirsium quercetorum Rimo Bacigalupi 1965-5-11 9081 Contra Costa Brooks Island (in San Francisco Bay southwest of Richmond). Comment
  CAS-BOT-BC285728  Cirsium vulgare Walter Knight 1978-8-27 3194 Contra Costa Contra Loma Regional Park 30 Comment
  CAS-BOT-BC162566  Clarkia affinis Alice Eastwood 1923-5-4 11734 Contra Costa Mt. Diablo Comment
  UC1143226  Clarkia affinis H. Lewis and C. Epling 1947-5-2 196 Contra Costa 1 mi w Curry Creek Park Road (Marsh Creek Road) Comment
  UC1795900  Clarkia affinis Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14639 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
  UC1071958  Clarkia biloba H. and M. Lewis 1947-6-15 442 Contra Costa 2.7 mi n Martinez City Limits (Martinez-Port Costa Road) Comment
  UC1197000  Clarkia biloba Joseph P. Tracy 1935-7-6 14038 Contra Costa 4 mi sw Martinez; Vaca Canyon 152 Comment
  UC169380  Clarkia biloba Katharine Brandegee June 1905 Contra Costa Port Costa Comment
  LA106651  Clarkia biloba subsp. biloba W. L. Jepson; 1918-6-3 7585 Contra Costa Donner Canyon, Mount Diablo 685 Comment
  CDA38052  Clarkia concinna subsp. concinna A. G. Murdock 2003-6-24 117 Contra Costa Carquinez Strait; Vaca Canyon; Alhambra Valley Rd on south bank. 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
  CAS-BOT-BC172036  Clarkia gracilis subsp. gracilis Mary L. Bowerman 1931-5-16 858 Contra Costa Grassy area on rocky west flank of Ransom Point Ridge, summit of Mount Diablo Comment
  UC2028301  Clarkia gracilis subsp. gracilis Barbara Ertter, Susan D'Alcamo 1998-6-12 16190 Contra Costa North Peak Trail south of Prospectors Gap on east side of Mount Diablo summit. Comment
  UCD164886  Clarkia purpurea Henry House 1995-4-30 1995- 9 Contra Costa About 1 km west of Walnut Blvd., ca. 0.5 km south Marsh Creek Rd. 60 Comment
  POM262916  Clarkia purpurea subsp. purpurea Herbert McLean Evans s.n. Contra Costa Mount Diablo Comment
  CAS-BOT-BC163669  Clarkia purpurea subsp. quadrivulnera Alice Eastwood 1915-5-30 4549 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC163672  Clarkia purpurea subsp. quadrivulnera John Thomas Howell 1931-5-12 6483 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
  CAS-BOT-BC163673  Clarkia purpurea subsp. quadrivulnera L. R. Abrams 1921-5-26 8048 Contra Costa At spring 4 1/2 mi from Summit, Mt. Diablo Comment
  CAS-BOT-BC163674  Clarkia purpurea subsp. quadrivulnera H. L. Mason 1928-4-26 4379 Contra Costa Around Berkeley and Oakland Comment
  UCD104921  Clarkia purpurea subsp. quadrivulnera Jennifer Davies 1982-4-11 3 Contra Costa 1 mile NW of South Checking Station on South Gate Road, Mt. Diablo. 487 Comment
  JEPS100002  Clarkia unguiculata G. Smick 2003-5-20 GAS 194 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS43602  Clarkia unguiculata W. L. Jepson 1918-6-5 7598 Contra Costa Donner Canyon Mt. Diablo 533 Comment
  RSA144626  Clarkia unguiculata William M. Klein 1958-6-9 439 Contra Costa Rolling coastal sandhills behind the Antioch sewage treatment plant Comment
  SEINET10492200  Clarkia unguiculata Tim Holtsford 1992-6-13 Holtsford 920613 -1 Contra Costa Morgan territory rd, se of concord, 1.35 mi s of marsh creek rd (clayton rd), 0.1 Mi n of shale cliff court. Roadside pop, n-facing slope with oaks, digger Pines, poison oak. Most flowering over, fruits still green. Comment
  UC1587532  Claytonia exigua subsp. exigua K. L. Chambers 1977-4-1 4266 Contra Costa ca .12 mi above Deer Flat (on trail to Deer Flat from the summit road, Mt. Diablo); Mt. Diablo Comment
  UC56201  Claytonia exigua subsp. exigua H. M. Hall 1901-4-5 1759 Contra Costa Mt. Diablo; San Francisco Bay Region 1158 Comment
  UC7852  Claytonia exigua subsp. exigua Brewer 1056 Contra Costa Mt. Diablo Comment
  UC7939  Claytonia exigua subsp. exigua State Survey 1862-5-7 1059 Contra Costa Mt. Diablo Summit Comment
  POM300713  Claytonia exigua subsp. exigua Mary L. Bowerman 1931-4-19 736 Contra Costa Deer Flat; Rocky dry hillslope where the trail leaves the flat. Comment
  UC2028063  Claytonia exigua subsp. exigua Barbara Ertter, Tony Morosco 1998-4-12 16011 Contra Costa Mount Olympia on north side of Mount Diablo, East Trail along ridge NE of summit Comment
  CAS-BOT-BC439440  Claytonia parviflora subsp. parviflora John Thomas Howell 1933-5-14 11252 Contra Costa Hills east of St. Mary's College Comment
  UC1745428  Claytonia parviflora subsp. parviflora Annetta M. Carter, Leo Bowerman 1935-6-1 870 Contra Costa Mt. Diablo. Main ridge running W from peak. 975 Comment
  UC2028210  Claytonia parviflora subsp. parviflora Barbara Ertter, Tony Morosco 1998-4-12 15999 Contra Costa Base of Mount Olympia on north side of Mount Diablo, talus above quarry NE of Olympia Trail. Comment
  UC1618110  Claytonia perfoliata Donald G. Nelson 1937-3-30 466 Contra Costa along Marsh Creek Rd. between Claytonville and Byron Comment
  UC2028575  Claytonia perfoliata subsp. intermontana Barbara Ertter with Stu Garrett 1997-3-29 15539 Contra Costa West side Mount Diablo, north end of Mothers Trail. Comment
  SEINET194968 Image available Claytonia perfoliata subsp. perfoliata A. A. Heller 1908-4-17 8909 Contra Costa Tracey. 10 Comment
  UC692539  Claytonia perfoliata subsp. perfoliata Mary L. Bowerman 1932-3-12 1111 Contra Costa Alamo Canyon; Mount Diablo 350 Comment
  UC7886  Claytonia perfoliata subsp. perfoliata W. H. Brewer 1862-5-12 1080 Contra Costa Mount Diablo 609 Comment
  UC7914  Claytonia perfoliata subsp. perfoliata J. Burtt Davy 1895-4-7 983 Contra Costa Antioch Comment
  UC1050592  Clematis cirrhosa N. Floy Bracelin 1942-2-22 1942 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC91359  Clematis lasiantha H. E. McMinn 1922-6-2 134 Contra Costa Mount Diablo. Comment
  UC136298  Clematis lasiantha C. F. Baker 1903-4-28 2946 Contra Costa Mt. Diablo, Mitchells Canyon Comment
  SEINET5547635  Clematis ligusticifolia H. S. Gentry 1931-1 57 Contra Costa Collected near Buckle Point, Mount Diablo. Comment
  UC1050307 Image available Clerodendrum bungei N. Floy Bracelin 1941-8-24 1592 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS120287  Clinopodium vulgare Barbara Ertter with David Gowen 2012-9-20 21018 Contra Costa lower Vollmer Peak Trail paralleling South Drive, southeastern Tilden Park in Berkeley Hills, ca. midway along trail, wide spot in shade of bay and pine (same location as 20919) Comment
  CAS-BOT-BC499321  Clintonia andrewsiana Walter Knight; Irja Knight 1988-5-21 6129 Contra Costa Redwood Regional Park, between pipe bridge and single curb bridge along Stream Trail 274 Comment
  SEINET12050675  Clintonia andrewsiana W. Knight, Knight, I. 1988-1 6129 Contra Costa Redwood Regional Park, between pipe bridge and single curb bridge along Steam Trail 274 Comment
  SEINET12051855  Clintonia andrewsiana W. Knight, Knight, I. 1988-1 6129 Contra Costa Redwood Regional Park, between pipe bridge and single curb bridge along Steam Trail 274 Comment
  SEINET9290098  Clytostoma callistegioides Unknown 2009-6-3 Contra Costa Residence in San Ramon, California. See USCH plant ID files. Plant sent to USCH for identification. Query letter included on specimen. Comment
  JEPS23273  Collinsia heterophylla Rimo Bacigalupi with G. T. Robbins 1959-4-24 7043 Contra Costa 0.5 mi n Jct of Hampton Rd and Bear Creek Rd (along Hampton Rd, just n of summit) 228 Comment
  JEPS108350  Collinsia sparsiflora David Gowen, Mike Parks 2005-3-30 219 Contra Costa Mt. Diablo State Park. East facing slope at base of Alamo Canyon. 350 Comment
  POM194561  Collinsia sparsiflora Y. Mexia 1929-4-21 2376 Contra Costa Moraga Valley. Comment
  JEPS87900  Collinsia sparsiflora var. collina Barbara Ertter, Brad Olson 1992-4-13 10951 Contra Costa e of Curry Point (Mount Diablo State Park, Knobcone Point Road); Mount Diablo State Park, Knobcone Point Road 518 Comment
  UC691850  Convolvulus arvensis Mary L. Bowerman 1931-5-13 840 Contra Costa canyon floor 1 mi above sulphur spring; Mount Diablo, Pine Canyon Comment
  UC2042954  Convolvulus arvensis Barbara Ertter with David Gowen and Mike Park 2004-6-13 18375 Contra Costa Black Diamond Mines Regional Preserve, near pond on south branch of Old Homestead Loop Trail. Comment
  UCD126203  Convolvulus arvensis P. B. Kennedy 1926-8-22 s.n. Contra Costa Sunset View Country. Comment
  JEPS100237  Convolvulus simulans Dean W. Taylor 1990-4-23 10635 Contra Costa ca. 2 miles due W of Byron Hot Springs 30 Comment
  UC2027933  Conyza canadensis Barbara Ertter with Chris Thayer 1996-10-25 15383 Contra Costa West side of Mount Diablo, North Gate Road 3 road miles below Junction near Mineral Spring. Comment
  UC2028010  Conyza canadensis Barbara Ertter 1998-1-4 15888 Contra Costa South end of Diablo Foothills Regional Park southeast of Walnut Creek. Comment
  CAS-BOT-BC32964  Cordylanthus nidularius John Thomas Howell 1942-7-19 17044 Contra Costa NE of Deer Flat, Mt. Diablo Comment
  CAS-BOT-BC32965  Cordylanthus nidularius John Thomas Howell 1942-7-19 17044 Contra Costa NE of Deer Flat, Mt. Diablo Comment
  JEPS85587  Cordylanthus nidularius T. I. Chuang with L. R. Heckard and R. C. Bacigalupi 1968-6-27 6436 Contra Costa 3/4 mi NE of Deer Flat (NE flank of Bald Ridge); Mt. Diablo 670 Comment
  RSA537699  Cordylanthus nidularius T. I. Chuang 1975-6-29 7517 Contra Costa Northeast of Deer Flat, Mount Diablo Comment
  JEPS87949  Cordylanthus pilosus subsp. pilosus Barbara Ertter, CNPS 1990-8-19 9623 Contra Costa above Cutter Cove (e side of s end of Briones Reservoir, n of Orinda, along Bear Creek Trail on EBMUD land); Briones Reservoir, Bear Creek Trail 213 Comment
  RSA136731  Cordylanthus pilosus subsp. pilosus J. T. Howell 1955-8-24 30902 Contra Costa Near Diablo County Club, south base of Mt. Diablo. Comment
  CAS-BOT-BC209751  Cornus glabrata Mary L. Bowerman 1935-6-21 3150 Contra Costa Mount Diablo. Arroyo del Cerro, east fork 243 Comment
  UC192419  Cornus glabrata E. L. Greene 1886-5-25 Contra Costa Walnut Creek Comment
  CDA23597  Cornus sericea D. G. Kelch 2007-9-8 7 .579 Contra Costa Carquinez Strait; Pinole Valley Park. Comment
  CDA38583  Cornus sericea D. G. Kelch 2003-8-13 3 .132 Contra Costa Carquinez Strait; Pinole Creek. Comment
  JEPS111819  Cornus sericea D. G. Kelch 2003-8-13 03 .132 Contra Costa Pinole Creek 68 Comment
  CAS-BOT-BC209591  Cornus sericea Virginia I. Dains; Walter Knight 1986-8-8 5471 Contra Costa Jct Rock S1 & Werner Cut Comment
  JEPS50136  Cornus sericea subsp. sericea W. L. Jepson 1914-10-31 6212 Contra Costa Oakland Hills, Moraga Ridge Comment
  LA40446  Cornus sericea subsp. sericea J. A. Ewan; 1936-7-5 9720 Contra Costa Reservoir road, Wildcat Creek Comment
  JEPS111525  Coronopus didymus D. G. Kelch 2005-5-5 05 .210 Contra Costa Point Pinole - Giant Marsh Giant Salt Marsh 3 Comment
  JEPS96226  Cortaderia jubata Barbara Ertter 1991-9-28 10854 Contra Costa e. end of Schmidt St. at recycling center El Cerrito (s. end of Hillside Natural Area) Comment
  UC2028523  Cortaderia jubata Barbara Ertter 1997-9-14 15814 Contra Costa Southwest side of Mount Diablo, Secret Trail at head of Pine Canyon. Comment
  CAS-BOT-BC190026  Cortaderia selloana Walter Knight 1978-9-19 3247 Contra Costa Browns Island. South Landing. Comment
  CAS-BOT-BC169515  Corylus cornuta subsp. californica Alice Eastwood 1914-3-6 s.n. Contra Costa Redwood Canyon Comment
  UC2028452  Cotula coronopifolia Barbara Ertter with Joanne Kerbavaz 2000-8-20 17503 Contra Costa Frog Pond on southeast side of Mount Diablo Comment
  UC2027742  Cotula coronopifolia Barbara Ertter 1997-1-5 15439 Contra Costa Lime Ridge Open Space on northwest side of Mount Diablo, section on north side of Ygnacio Valley Road. Comment
  UC2043011  Cotula coronopifolia Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14915 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  JEPS99543  Crassula aquatica Mary Bowerman 1975-9-14 Contra Costa Mount Diablo, Chase Pond. Comment
  UC1328150  Crassula connata var. subsimplex Olive Dyer 1937-3-26 232 Contra Costa meadow n. Bald Peak (Wildcat Canyon); Wildcat Canyon Comment
  UC2028043  Crassula tillaea Barbara Ertter 1998-3-1 15926 Contra Costa Diablo Foothills Regional Park, Ridge Trail on ridge east of Old Borges Ranch. Comment
  UC2028072  Crassula tillaea Barbara Ertter with Tony Morosco 1998-4-12 15995 Contra Costa Base of Mount Olympia on north side of Mount Diablo, base of quarry NE of Olympia Trail. Comment
  CDA37402  Cressa truxillensis D. G. Kelch, Mike Perlmutter 2011-9-23 11 .757 Contra Costa Entry to Discovery Bay. Comment
  JEPS78617  Cressa truxillensis Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3289 Contra Costa Brown Island, Sandy Knoll Comment
  RSA292977  Cressa truxillensis Reino Alava 1957-5-20 880 Contra Costa About one mile south of Byron. Comment
  JEPS99569  Crypsis schoenoides Mary Bowerman 1993-10-22 Contra Costa Mount Diablo, Pine Pond. Comment
  RSA0033934  Crypsis schoenoides Barbara Ertter, Chris Thayer 1996-10-25 15360 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park. 91 Comment
  UCR254745  Crypsis schoenoides Peter Rubtzoff 1968-9-18 5964 Contra Costa North Gate Road, c. 5 miles NW of Mt. Diablo State Park north entrance 58 Comment
  CAS-BOT-BC190081  Crypsis schoenoides R. E. Frenkel 1964-9-17 864 Contra Costa On Marsh Creek Road at shore of Marsh-Kellogg Creek Reservoir. 45 Comment
  UC2028263  Cryptantha clevelandii Barbara Ertter 1999-6-12 16717 Contra Costa West Branch Alamo Creek on south flank of Mount Diablo, along unofficial path running from north spur of Black Hawk Ridge Road to south spur off of Knob Cone Point Road (near powerline). Comment
  UC762391  Cryptantha decipiens R. F. Hoover 1938-5-4 3347 Contra Costa Peak E of Tassajero Creek 762 Comment
  UC2028311  Cryptantha decipiens Barbara Ertter, Susan D'Alcamo 1998-6-12 16165 Contra Costa North Peak Trail from Devil's Elbow on SE side of Mount Diablo summit. Comment
  JEPS99572  Cryptantha flaccida Mary Bowerman 1991-5-21 Contra Costa Mount Diablo, by Jim White Trail [Deer Flat Rd.] Comment
  UC691395  Cryptantha flaccida Mary L. Bowerman 1930-6-7 269 Contra Costa Mount Diablo summit Mount Diablo Comment
  UC691401  Cryptantha flaccida Mary L. Bowerman 1932-4-16 1348 a Contra Costa Eagle Point Mount Diablo Comment
  UC1818922  Cryptantha flaccida Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14227 Contra Costa Mt. Diablo southeast of Walnut Creek, serpentine knoll ca 1/2 airmile north of Curry Point, grassland, oaks around knoll. . 487 Comment
  UC55905  Cryptantha microstachys Jos. Burtt Davy 1901-4-21 7046 Contra Costa Wildcat Canyon Comment
  UC2042963  Cryptantha muricata Barbara Ertter with David Gowen and Chris Thayer 2014-4-12 21712 Contra Costa Small ridge on north side of Prospectors GAp Road, just north of Ginochio property on east side of Mount Diablo. 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
  RSA128433  Cryptantha nevadensis var. rigida Robert F. Hoover s.n. Contra Costa Peak east of Tassajero Creek. 762 Comment
  JEPS67884  Cryptantha torreyana Mary L. Bowerman 1933-6-3 2245 Contra Costa Meridian Peak summit Mt. Diablo Comment
  CDA33492  Cuscuta japonica Yost 2008-7-17 PDR# 1454020 Contra Costa Antioch; 5124 Paddock Ct. 0 Comment
  CDA33504  Cuscuta japonica R. Fonseca 2008-10-27 PDR# 1455391 Contra Costa Rodeo; 2 California St. 0 Comment
  UC2032851  Cuscuta pacifica Doran, Andrew Scott 2012-3-20 722 Contra Costa Northeast part of Brooks Island, on trail to beach along spit. Comment
  JEPS43032  Cuscuta salina var. major W. L. Jepson 1922-7-9 9731 Contra Costa Richmond Comment
  CDA31062  Cuscuta subinclusa D. G. Kelch 2006-8-11 6 .374 Contra Costa Carquinez Strait.; Top of Edward s Canyon. Crockett. Comment
  JEPS124470  Cuscuta subinclusa Daniel Slakey with CNPS Volunteers 2015-7-6 143 Contra Costa Mt. Diablo, about 200 m north of Frog Pond, near stream. Comment
  UC691365  Cuscuta subinclusa Mary L. Bowerman 1932-9-3 1536 Contra Costa Muir Area (Burn 1931) Mount Diablo Comment
  UC691908  Cuscuta subinclusa Mary L. Bowerman 1932-10-16 1633 Contra Costa Donner Canyon trail Mount Diablo Comment
  CDA4534  Cynara cardunculus T. C. Fuller 1957-10-2 399 -57 Contra Costa Antioch. 0 Comment
  CAS-BOT-BC299741  Cynara cardunculus D. E. Breedlove 1969-10-18 16709 Contra Costa Along the roadbank on Deer Hill Road near the junction with Happy Valley Road, Lafayette Comment
  UCD131027  Cynara cardunculus W. A. Harvey; June McCaskill 1962-3-15 s.n. Contra Costa on Standard Oil tank farm west of U.S. Highway 40 and north of Richmond. Comment
  CDA31110  Cynodon dactylon D. G. Kelch 2004-5-9 4 .208 Contra Costa Carquinez Strait Region; Crockett - Carquinez Scenic Drive. Scenic Drive west of Bull Valley Staging Area, east of Crockett, CA Comment
  UCD60104  Cynodon dactylon P. W. Lamborn 1972-11-2 AES Contra Costa Nomellini Ranch. Comment
  UCR7818  Cynoglossum grande Wm. Horn Jr. 1964-2-26 640226- 2 Contra Costa San Francisco Bay Region, Flicker Ridge, 1.5 mi SW of Moraga 183 Comment
  UC2061523  Cynosurus echinatus Dean G. Kelch 2016-5-27 16 .139 Contra Costa Miller-Knox Hill. 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
  CDA9292  Cyperus difformis D. G. Kelch 2006-9-15 6 .474 Contra Costa Carquinez Strait; Shell Ave., Martinez. Between Pine St. and Harborview Dr. Comment
  CAS-BOT-BC114375  Cyperus erythrorhizos Walter Knight; Irja Knight; E. McClintock; John Thomas Howell; P. Rae 1978-9-5 3225 Contra Costa Browns Island, Botany Cove. Comment
  SD107681  Cyperus erythrorhizos Walter Knight, Irja Knight 1980-8-26 3769 Contra Costa Hercules; adventive along edge of pond for sewage disposal plant in a structure covered with vinyl. Comment
  CAS-BOT-BC113833  Cyperus niger Louis C. Wheeler 1952-10-2 7000 Contra Costa Mount Diablo: ca/ 0.8 mile up from Turtle Ranch, ca. 1 mi downhill from divide in road. Comment
  CAS-BOT-BC113834  Cyperus niger John Thomas Howell 1950-7-5 26633 Contra Costa Spring along North Road, Mt. Diablo. Comment
  CAS-BOT-BC110840  Cyperus strigosus Walter Knight; I. Knight; E. McClintock; J. T. Howell; B. Doyle; P. Rae 1978-9-5 3226 Contra Costa Browns Island, Botany Cove Comment
  UC692117  Cystopteris fragilis Mary L. Bowerman 1933-6-3 2243 Contra Costa summit Mt Diablo 1127 Comment
  UC641611  Danthonia californica G. L. Stebbins Jr. 1939-5-24 2714 Contra Costa opposite Berkeley Country Club Comment
  JEPS111628  Daucus pusillus D. G. Kelch 2005-5-1 05 .187 Contra Costa Crockett - Edwards Canyon, near top of canyon. 150 Comment
  UC691894  Daucus pusillus Mary L. Bowerman 1931-5-21 878 Contra Costa Curry-Cave Point trail Mt. Diablo; , Curry-Cave Point trail 304 Comment
  UC32716  Deinandra corymbosa J. Burtt Davy 1896-1-1 Contra Costa Moraga Pass Comment
  JEPS12619  Deinandra kelloggii Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  CAS-BOT-BC291805  Deinandra lobbii H. M. Hall 1930-6-18 12791 Contra Costa South of Pittsburg Comment
  CAS-BOT-BC291810  Deinandra lobbii David D. Keck 1933-11-2 2615 Contra Costa 1 mi. E. of Nichols, N. Contra Costa County Comment
  JEPS105695  Deinandra lobbii David Gowen 2004-5-29 101 Contra Costa Lime Ridge Open Space. Summit area just south of the antenna facility. Comment
  LA207419  Delphinium hansenii H. Lewis; Carl Epling 1947-5-4 703 Contra Costa Marsh Creek Road, 5.8 mi. E of Creek Park Rd Comment
  CAS-BOT-BC10308  Delphinium hesperium Alice Eastwood 1915-5-30 4439 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
  UC101573  Delphinium hesperium subsp. pallescens Katharine Brandegee 1907-5-3 Contra Costa bet. Antioch and Marsh Creek Comment
  RSA148120  Delphinium patens Harlan Lewis, C. Epling 1944-5-6 s.n. Contra Costa 5.7 miles S of Marsh Creek Road on the Beck road to Luieruiore. Comment
  CAS-BOT-BC116457  Delphinium patens subsp. patens Alice Eastwood 1915-5-30 4497 Contra Costa Mt. Diablo Comment
  UC635345  Delphinium patens subsp. patens H. L. Mason 1928-4-29 4440 Contra Costa s slope of mt Mount Diablo, Sycamore Canyon Comment
  UC2028069  Delphinium patens subsp. patens Barbara Ertter with Tony Morosco 1998-4-12 16004 Contra Costa Base of Mount Olympia on north side of Mount Diablo, NE of Olympia Trail. 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
  UC765796  Delphinium recurvatum R. F. Hoover 1938-3-25 2900 Contra Costa Byron Hot Springs Comment
  LA207616  Delphinium recurvatum Carl Epling; 1945-3-23 542 Contra Costa 5 mi. W of Hwy. 120 on Byron Hot Springs rd 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
  CAS-BOT-BC11023  Dendromecon rigida W. W. Carruth 1907-5-1 s.n. Contra Costa Moraga Valley Comment
  UC1051410  Dendromecon rigida Helen K. Sharsmith 1954-3-24 4408 Contra Costa canyon above old Nortonville Mines (near Kirker Pass Road between Clayton and Antioch) 304 Comment
Read comments
Oct 2 2015
  UC2028474  Deschampsia cespitosa subsp. holciformis Barbara Ertter with Richard K. Brummitt 1998-5-6 16097 Contra Costa Antioch Marina, edge of brackish marsh Comment
  POM181464  Deschampsia danthonioides I. L. Wiggins 1930-4-17 4576 Contra Costa 1/4 mi. S. of Byron Comment
  UCD18454  Deschampsia elongata Glen Holstein 2000-7-27 s.n. Contra Costa SE El Sobrante, NE side of San Pablo Ridge, along trails. Comment
  UC615579  Dicentra chrysantha Beryl O. Schreiber 1933-10-5 933 Contra Costa Mount Diablo road; Mount Diablo Comment
  CDA29039  Dichelostemma capitatum D. G. Kelch 2006-5-7 6 .158 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. 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
  SEINET3559560 Image available Dichelostemma capitatum Lewis S. Rose 1932-3-15 3284 Contra Costa Byron. Comment
  UC1133885  Dichelostemma capitatum R. C. Wilson 1935-3-19 138 Contra Costa 2 mi nw Wall Pt.; Mt. Diablo 335 Comment
  CAS-BOT-BC500092  Dichelostemma capitatum Jeanne R. Janish; Edward Janish 1948-3-23 244 Contra Costa Open hillside of Stony Gorge Dam, Elk Creek. Comment
  UCD139417  Dichelostemma capitatum subsp. capitatum P. B. Kennedy 1914-3-15 4631 Contra Costa Sunset Cemetery. Comment
  CAS-BOT-BC502180  Dichelostemma ida-maia E E Smith 1893-1-1 s.n. Contra Costa near Mount Diablo Comment
  CAS-BOT-BC150328  Diplacus aurantiacus D. E. Breedlove 1970-4-18 17427 Contra Costa At the north edge of Lafayette above Laurel Drive 243 Comment
  RSA0068054  Diplacus aurantiacus Katie Gallagher, Nick Jensen 2014-4-26 198 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  CAS-BOT-BC151950  Diplacus douglasii John Thomas Howell 1941-4-6 16177 Contra Costa Near Deer Flat, Mt. Diablo Comment
  RSA697529  Dipsacus fullonum J. Vlahos 1934-8-1 s.n. Contra Costa Contra Costa County Hills. Comment
  CAS-BOT-BC121840  Dirca occidentalis Howard E. McMinn 1925-3-30 1402 Contra Costa Near summit Thornhill Road and Skyline Blvd. Comment
  CAS-BOT-BC121845  Dirca occidentalis P. H. Raven 1956-4-8 8986 Contra Costa About 0.5 miles NE of Grizzly Peak 396 Comment
  CAS-BOT-BC238191  Dirca occidentalis James R. Shevock 2012-8-12 40655 Contra Costa San Francisco Bay Region. Tilden Regional Park, East Bay Regional Park District. Along Grizzly Peak Trail less than 0.25 mi from upper trailhead off Grizzly Peak Road 445 Comment
  OBI78484  Dirca occidentalis H. E. McMinn 1925-3-30 1402 Contra Costa Near summit Thornhill Rd and Skyline blvd Comment
  UC581346  Dirca occidentalis Helen K. Sharsmith 1932-9-18 50 Contra Costa head of Wildcat Canyon Berkeley Hills (streamside) Comment
  OBI78486  Dirca occidentalis A. Kay Ketcham 1968-3-21 16 Contra Costa Approx 300 yds S of Neil Havlik #88 at the S end of Charles Lee Tilden Regional Park Comment
  SEINET12190184  Dirca occidentalis J. T. Gregory 1936-1 1043 Contra Costa W branch San Pablo Creek on Tunnel Road 3 mi E of Berkeley Comment
  UCSB25834  Dirca occidentalis Keefe, Joseph 1967-3-20 Contra Costa Huckleberry Trail, 0.5 mile east of Skyline Boulevard, near intersection with Grizzly Peak Boulevard, east of Berkeley 274 Comment
  UC792335  Disporum hookeri J. A. Rattenbury 1948-3-26 104 Contra Costa on s side of highway above creek 1/2 mi e of Oakland Tunnel 213 Comment
  CAS-BOT-BC208655  Distichlis spicata Walter Knight; Joanne Dean 1978-8-14 3192 Contra Costa Browns Island Comment
  UC2029148  Distichlis spicata Barbara Ertter with Dan Norris 1999-11-14 16851 Contra Costa Black Diamond Mines Regional Preserve, south of parking area for Somersville townsite. Comment
  UCD64394  Distichlis spicata var. stolonifera M. Wiesendanger 1926-6-1 1534 Contra Costa Richmond. Comment
  CDA4505  Dittrichia graveolens D. G. Kelch 2006-9-25 6 .476 Contra Costa Carquinez Strait; Marsh 1km. W of Pacheco Slough. Comment
  UC1777688  Dittrichia graveolens Tina Carlsen 1996-10-9 Contra Costa E side of Greenville Rd. (.5 mi s of I-580) 182 Comment
Read comments
Oct 17 2006
  UC2042955  Dittrichia graveolens Barbara Ertter with David Gowen, Mike Park and Abby Moore 2006-11-24 18785 Contra Costa Mt Diablo State Park, Live Oak Campground. Comment
  UCR198215  Dittrichia graveolens Dean Kelch, A. G. Murdock 2005-11-3 05 .489 Contra Costa Carquinez Strait, entrance to Mt. Wanda 37 Comment
  CHSC21631  Dodecatheon clevelandii subsp. patulum Willis Ball 1975-3-9 494 Contra Costa Contra Loma Regional Park. In area #8. On n facing slope near top of hill ca. 500 yds s of main parking lot ca. 750 yds w of Contra Loma Blvd. 149 Comment
  JEPS99500  Dodecatheon clevelandii subsp. patulum Mary Bowerman 1979-4-3 Contra Costa Mount Diablo. Shell Ridge. Comment
  UC673358  Dodecatheon clevelandii subsp. patulum Herbert L. Mason 1925-2-28 1260 Contra Costa 1/2 mi e Rodeo; e of Rodeo Comment
  JEPS9520  Dodecatheon hendersonii W. L. Jepson 1923-3-11 9848 Contra Costa Mt. Diablo 396 Comment
  POM287080  Dodecatheon hendersonii Lyman Benson 1935-3-16 6279 Contra Costa Mitchell Canyon near Clayton; Mt. Range: Mt. Diablo; Watershed: Walnut Creek. 244 Comment
  UC517947  Dodecatheon hendersonii John Thomas Howell 1931-3-10 5756 Contra Costa on Livermore Road 7 mi from Clayton; e side Mt. Diablo, 7 mi from Clayton 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
  UCD35993  Dodecatheon hendersonii Beecher Crampton 1949-4-1 423 Contra Costa Contra Costa County, Moraga Ridge. 60 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
  JEPS127676  Downingia insignis Barbara Ertter with David Gowen and Michael Park 2017-5-2 22797 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  UC583159  Downingia insignis Lewis S. Rose 1936-4-24 36154 Contra Costa 8 mi s Antioch 30 Comment
  UC924239  Downingia insignis H. S. Reed 1940-4-30 356 a Contra Costa 6 mi s Antioch 15 Comment
  OBI48705  Downingia ornatissima Lewis S. Rose 1940-4-30 40258 Contra Costa 4 mi S of Antioch 30 Comment
  UCD32386  Downingia ornatissima Beecher Crampton 1950-4-22 530 Contra Costa Contra Costa County, 2 miles south of Antioch, on road from Antioch to Lone Tree Valley, in shallow depression along roadside. 60 Comment
  UC765585  Downingia ornatissima var. eximia R. F. Hoover 1941-4-12 4841 Contra Costa 2 mi s Antioch Comment
  RSA166380  Downingia ornatissima var. eximia John H. Thomas 1953-4-25 3003 Contra Costa Empire Mine Road near Antioch Golf Course. South of Antioch. Comment
  UC1192049  Downingia pulchella F. Chisaki, S. G. Smith, and Peter M. Ray 1951-4-14 1980 Contra Costa 7 mi n Walnut Creek (e of Highway 21, 0.2 s of intersection with Highway 4) Comment
  UCD32494  Downingia pulchella Beecher Crampton 1950-4-22 535 Contra Costa Contra Costa County, Concord Valley, between Highway 4 and Buchanan Field (airport). 15 Comment
  JEPS100162  Dryopteris arguta A. Langston 2003-6-19 AL 50 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2028552  Dryopteris arguta Barbara Ertter 1997-9-7 15795 Contra Costa North side Mount Diablo, Donner Creek crossing at south end of Hetherington Trail Comment
  UC1357009  Dudleya farinosa C. H. Uhl 1954-6-1 360 Contra Costa Richmond Point Comment
  JEPS128780  Dysphania chilensis Kevin Hintsa 2000-8-17 Contra Costa Mount Diablo State Park, flats just upstream from Pine Pond's willow forest. Comment
  CAS-BOT-BC197108  Echinochloa crus-galli John Thomas Howell; Gordon H. True 1972-6-29 48942 Contra Costa Along Byron Hot Springs Road where water has stood, southeast of Byron Comment
  CAS-BOT-BC197225  Echinochloa crus-pavonis Walter Knight; Irja Knight 1977-7-28 3149 Contra Costa Black Diamond Coal Mines Regional Preserve. Somersville Townsite Comment
  CDA1988  Echinochloa muricata var. microstachya T. C. Fuller 1964-11-6 12809 Contra Costa Bethel Island. 0 Comment
  UC702897  Elaeagnus angustifolia Dr. E. C. Van Dyke 1941-10-4 Contra Costa River e of Antioch Comment
  RSA721590  Elatine brachysperma Mary L. Bowerman 1975-9-14 s.n. Contra Costa Mount Diablo. Comment
  UC1606336  Elatine californica Barbara Ertter, Brad Olson 1991-9-28 10829 Contra Costa betw Orinda and El Sobrante San Pablo Reservoir Comment
  RSA721534  Eleocharis acicularis var. acicularis Mary L. Bowerman 1975-9-14 s.n. Contra Costa Mount Diablo. Comment
  JEPS99557  Eleocharis macrostachya Mary Bowerman 1977-6-11 Contra Costa Mount Diablo, Pine Creek at S end of Castle Rock Park. 182 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
  UCR263535  Eleocharis macrostachya Barbara Ertter 1998-5-3 16062 Contra Costa Central Coast, area of Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo, below road southeast of ponds 305 Comment
  CAS-BOT-BC112797  Eleocharis macrostachya Walter Knight 1978-8-19 3233 Contra Costa Upper Sindecich Lagoon. Briones Regional Park. 335 Comment
  JEPS111062  Eleocharis macrostachya Lee Echols 2003-6-20 s.n. Contra Costa Richmond Field Station, SW corner of Danthonia grassland N of Lark Drive 15 Comment
  UC2028433  Eleocharis parishii Barbara Ertter with Chris Thayer 1996-10-25 15350 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothill Regional Park Comment
  SEINET3874805  Elodea densa L. Thorne, N. Thorne 1987-9-20 s.n. Contra Costa The Delta Area, Frank's Tract. Plant growing in the water. Brazilian water-weed, used in aquariums.; 0 Comment
  POM205573  Elymus X gouldii Jos Burtt Davy 1898-05 1742 Contra Costa Port Costa, on a steep bank Comment
  RSA108337  Elymus X gouldii Frank W. Gould 1941-5-6 1288 Contra Costa 2.3 miles from Walnut Creek on Danville road. Comment
  RSA264278  Elymus X gouldii A. A. Beetle 1941-6-24 1751 Contra Costa Pt. Richmond on San Francisco Bay Comment
  UC2028475  Elymus X hansenii Barbara Ertter with Richard K. Brummitt 1998-5-6 16100 Contra Costa Point San Pablo west of Richmond, crest of road to yacht harbor Comment
  UC2070620  Elymus caput-medusae Barbara Ertter with John Ginochio 2002-6-1 17946 Contra Costa Castle Rock Park at mouth of Pine Canyon, NW foot of Mount Diablo. Comment
  UC691202  Elymus glaucus Mary L. Bowerman 1933-5-21 2154 Contra Costa n-facing slope below Grape Spring (s from Curry Canyon); Mount Diablo Comment
  UC691203  Elymus glaucus Mary L. Bowerman 1935-5-22 3039 Contra Costa Eagle Point ridge Mount Diablo (canyon at n end which heads into saddle w of Twin Peaks) 304 Comment
  UC691170  Elymus multisetus Mary L. Bowerman 1933-6-7 2262 Contra Costa North Peak Mount Diablo Comment
  UC691171  Elymus multisetus Mary L. Bowerman 1938-6-24 3690 Contra Costa Canyon Nook Mount Diablo (e side of creek) 670 Comment
  UC1505156  Elytrigia pontica subsp. pontica S. W. Edwards 1984-7-29 84 -17 Contra Costa along hwy 4 at junction with Patterson Pass Rd (just s of Brentwood) Comment
  JEPS1599  Emmenanthe penduliflora Mary L. Bowerman 1933-4-26 1916 Contra Costa North Peak ridge east-southeast of the peak, south face, Mount Diablo 609 Comment
  JEPS78615  Epilobium brachycarpum Walter Knight, L. R. Heckard, and Bert Johnson 1978-9-28 3296 Contra Costa South Landing Browns Island Comment
  UCD150882  Epilobium brachycarpum James A. Neilson Jr. 1972-11-2 3605 Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 1 Comment
  UC692453  Epilobium canum subsp. canum Mary L. Bowerman 1930-8-24 430 Contra Costa Mitchell Canyon Mount Diablo (at lower edge of chaparral where it extends nearly to streambed) Comment
  CAS-BOT-BC166168  Epilobium canum subsp. canum H. E. McMinn 92 Contra Costa From n. slope of Mt. Diablo near the summit Comment
  CAS-BOT-BC166826  Epilobium canum subsp. latifolium K. Brandegee s.n. Contra Costa Mt. Diablo Comment
  CDA38079  Epilobium ciliatum D. G. Kelch 2003-8-13 3 .142 Contra Costa Carquinez Strait; Pinole Creek. Comment
  UC1784907  Epilobium ciliatum subsp. ciliatum Barbara Ertter 1994-6-26 12875 Contra Costa S of Point Molate Beach Park in W Richmond N of San Rafael Bridge, at edge of San Francisco Bay Comment
  CDA9494  Epilobium cleistogamum D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .218 Contra Costa Byron Airport. Comment
  UC615553  Epilobium densiflorum Beryl O. Schreiber 1933-10-5 936 Contra Costa road to Mount Diablo; marshy ground Comment
  POM300656  Epilobium minutum Mary L. Bowerman 1933-6-3 2244 Contra Costa Mount Diablo: summit, on north face. Comment
  UC692443  Epilobium torreyi Mary L. Bowerman June 1942 3847 Contra Costa lower Rock City Camp; Mount Diablo Comment
  POM300615  Epipactis gigantea Mary L. Bowerman 1931-5-28 906 Contra Costa Mount Diablo: Pine Canyon, gully to south at east end of Castle Rock Farm: on dry waterfall between 2 pools Comment
  RSA309336  Equisetum hyemale var. affine Edward Lee, C. M. Belshaw 1935-7-28 1700 Contra Costa Western end of Las Trampas Ridge. 427 Comment
  UC692131  Equisetum telmateia subsp. braunii Mary L. Bowerman 1939-3-31 3737 Contra Costa Johnny Walker Spring Mt. Diablo 731 Comment
  CAS-BOT-BC514609  Eriastrum pluriflorum subsp. pluriflorum T. S. Brandegee 1883-6-1 s.n. Contra Costa Antioch Comment
  UC691864  Ericameria arborescens Mary L. Bowerman 1933-9-9 2438 Contra Costa ridge above Frog Pond; Mt. Diablo Comment
  UC691866  Ericameria arborescens Mary L. Bowerman 1932-9-17 1583 Contra Costa w fork Donner Canyon (bank between upper forks); Mount Diablo 304 Comment
  CAS-BOT-BC287532  Ericameria linearifolia H. M. Hall 1901-4-5 1745 Contra Costa Mt Diablo 685 Comment
  CAS-BOT-BC287534  Ericameria linearifolia L. R. Abrams 1921-5-25 8006 Contra Costa Mt Diablo, middle altitudes Comment
  JEPS117962  Ericameria linearifolia Holly Forbes and Barbara Keller 2009-5-29 Contra Costa Mount Diablo State Park, along deer Flat Road, about 0.1 mi beyond Juniper Camp. Comment
  UC36564  Ericameria linearifolia F. P. McLean 1875-3-1 Contra Costa Mt. Diablo Comment
  UC36565  Ericameria linearifolia F. P. McLean 1875-3-1 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC287533  Ericameria linearifolia Rattan 1886-6-14 s.n. Contra Costa W slope of Mt Diablo Comment
  CAS-BOT-BC300590  Erigeron foliosus var. franciscensis L. R. Abrams 1916-6-30 5701 Contra Costa Mt. Diablo near lake Comment
  CAS-BOT-BC295955  Erigeron philadelphicus Mary L. Bowerman 1935-5-16 2998 Contra Costa Mount Diablo. Russelman [Russellmann] Park road at Gregory Ranch junction 289 Comment
  UC697208  Erigeron philadelphicus var. philadelphicus Mary L. Bowerman 1935-5-16 2998 Contra Costa Russelman Park road at Gregory Ranch junction; Mount Diablo 289 Comment
  CAS-BOT-BC224218  Eriodictyon californicum H. E. McMinn 1922-6-2 87 Contra Costa From N. slope of Mt. Diablo Comment
  JEPS102893  Eriogonum covilleanum Barbara Ertter with Susan D'Alcamo 1998-6-12 16166 Contra Costa Devils Elbow trail SE of summit, not far from trailhead Mount Diablo 1036 Comment
  UC1789160  Eriogonum fasciculatum Barbara Ertter 2001-9-3 17807 Contra Costa Sibley Volcanic Regional Park, area excavated for water tank on west side of Round Top, basaltic. Comment
  JEPS99481  Eriogonum gracile Mary Bowerman 1975-6-7 Contra Costa Mount Diablo. Trail W of Murchio Gap to Deer Flat. Comment
  UC692018  Eriogonum gracile var. gracile Mary L. Bowerman 1932-11-11 1639 Contra Costa Little below Moses Rock Spring (ridge leading up from Buckle Point (on west road)); Mount Diablo 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
  UC692045  Eriogonum nudum var. auriculatum Mary L. Bowerman 1930-8-24 424 Contra Costa Mitchell Canyon, lower trail Mount Diablo Comment
  POM301012  Eriogonum nudum var. auriculatum Annetta Carter 1940-6-22 1601 Contra Costa Mount Diablo: Lime Ridge, north edge of south chaparral patch. 274 Comment
  UC1229891  Eriogonum nudum var. psychicola Jerry Powell 1962-8-19 308 Contra Costa about 2 mi e Antioch 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-BC267446  Eriogonum truncatum M. K. Curran 1886-5-1 s.n. Contra Costa Antioch Comment
  UC6491 Image available Eriogonum truncatum W. H. Brewer 1862-5-29 1186 Contra Costa Camp 71, Marsh's Ranch, Contra Costa Co. Comment
  CAS-BOT-BC267872  Eriogonum umbellatum var. bahiiforme A. D. E. Elmer 1903-7-1 4547 Contra Costa Mount Diablo Comment
  CAS-BOT-BC267873  Eriogonum umbellatum var. bahiiforme Mary L. Bowerman 1930-6-14 328 Contra Costa Mount Diablo Comment
  CAS-BOT-BC267874  Eriogonum umbellatum var. bahiiforme John Thomas Howell 1942-5-24 16967 Contra Costa Eagle Peak, Mount Diablo Comment
  CAS-BOT-BC300926  Eriophyllum jepsonii John Thomas Howell 1950-7-5 26636 Contra Costa Above Nortonville Comment
  CAS-BOT-BC300968  Eriophyllum lanatum var. achilleoides John Thomas Howell 1923-11-12 244 Contra Costa Mt. Diablo Comment
  UC691723  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1935-5-30 3097 c Contra Costa between the two ridges which converge at Twin Peaks (Eagle Point ridge) Mount Diablo 350 Comment
  CAS-BOT-BC300978  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1935-5-22 3066 Contra Costa Mount Diablo. Most westerly of the two ridges which converge at Twin Peaks (Eagle Point ridge) 365 Comment
  CAS-BOT-BC300981  Eriophyllum lanatum var. achilleoides Miss E. Cannon 1897-6-6 s.n. Contra Costa Pine Canyon, Mt. Diablo Comment
  UCSB6523  Eriophyllum lanatum var. arachnoideum Keator, Glenn 1959-7-1 Contra Costa 1/4 mile above Laurel camp on Mt. Diablo Comment
  POM358034  Eriophyllum lanatum var. grandiflorum E. E. Stanford 1930-5-24 1513 Contra Costa Marsh Creek Canyon. Comment
  UC2032830  Eriophyllum staechadifolium Doran, Andrew Scott 2012-3-20 700 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  CDA29179  Erodium botrys D. G. Kelch 2008-6-15 8 .246 Contra Costa Carquinez Strait; Crockett hills, S of Cummings Skyway, W of Crockett Blvd. Comment
  UC1130310  Erodium macrophyllum C. M. Belshaw 1936-5-15 2126 Contra Costa 1.75 mi ne Somerville; Mt. Diablo Quad. 152 Comment
  UC571138  Erodium macrophyllum H. L. Mason 1929-4-25 5209 Contra Costa Briones Road to Antioch Comment
  UC614848  Erodium macrophyllum Beryl O. Schreiber 1932-3-27 Contra Costa Mountain House Comment
  UC2062628  Eryngium armatum Barbara Ertter 2002-5-16 17864 Contra Costa Richmond Field Station (UC-Berkeley). Comment
  JEPS78607  Eryngium articulatum Walter Knight, L. R. Heckard, and Bert Johnson 1978-9-28 3291 Contra Costa Browns Island, Botany Cove Comment
  UC692318  Eryngium castrense Mary L. Bowerman 1935-6-28 3169 Contra Costa Mt. Diablo, Chase Pond 548 Comment
  UC692327  Eryngium castrense Mary L. Bowerman 1935-6-28 3171 Contra Costa Mt. Diablo, Chase Pond Comment
  CDA38311  Eryngium spinosepalum H. Van Brocklin 1958-6-1 s.n. Contra Costa Byron. 0 Comment
  JEPS97706  Eryngium vaseyi Annetta M. Carter, Tom Morley, Malcolm Nobs 1951-3-25 3006 Contra Costa 3.3 mi. S of Byron. Comment
  UC1190973  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
  CAS-BOT-BC40769  Erysimum capitatum G. B. Rossbach; R. P. Rossbach 1938-6-5 858 b Contra Costa Along tidal estuary of San Joaquin River just east of Antioch. Comment
  UC691074  Erysimum capitatum Mary L. Bowerman 1935-4-26 2915 Contra Costa w ridge west of Indian Ceremonial Spring (just below Old Stage Rd); Mount Diablo 1005 Comment
  UC691082  Erysimum capitatum Mary L. Bowerman 1931-3-7 551 Contra Costa Indian Ceremonial Springs Mount Diablo Comment
  JEPS68964  Erysimum capitatum var. capitatum Edward Lee 1935-3-10 1296 Contra Costa e Antioch (hollow in stablized dune); Antioch Sand Dunes Comment
  SBBG92005  Erysimum capitatum var. capitatum H. L. Mason 1933-4-9 7189 Contra Costa E of Antioch along the San Joaquin River 12 Comment
  UC10536  Erysimum capitatum var. capitatum J. Burtt Davy and E. L. Greene 1895-4-7 996 Contra Costa Antioch Comment
  UC762935  Erysimum capitatum var. capitatum R. F. Hoover 1937-5-14 2111 Contra Costa Antioch sand-dunes Comment
  JEPS75891  Erysimum capitatum var. capitatum Dan Cheatham 1977-4-2 Contra Costa easternmost Pacific Gas and Electric tower Antioch Dunes Comment
  UCSB11259  Erysimum capitatum var. capitatum Hayes, Judy 1961-03 Contra Costa 1.6 miles N of South Gate of Mount Diablo State Park 304 Comment
  UC726212  Eschscholzia A. A. Heller 1938-4-9 15018 Contra Costa 3 mi sw of Antioch Comment
  CAS-BOT-BC402981  Eschscholzia californica A. Eastwood 1894-5-4 s.n. Contra Costa Walnut Cr. Comment
  UC10007  Eschscholzia californica J. Burtt Davy April, 1897 Contra Costa Point Isabel Comment
  UC1819026  Eschscholzia californica Barbara Ertter, Chris Thayer 1995-4-25 13996 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Black Hawk Ridge Rd. on north side Black Hawk Ridge. 548 Comment
  HSC16752  Eschscholzia californica Greg Bos 1963-3-15 39 Contra Costa Albany Hill, Albany 15 Comment
  UC146041  Eschscholzia californica Miss Carlotta Case 1904-7-1 Contra Costa w tunnel at Muir Station Comment
  SEINET3840812  Eschscholzia californica subsp. californica Unknown 2006-7-14 6 .335 Contra Costa Between route 4 and Carbon road, east Rodeo 24 Comment
  UC1789210  Eucalyptus globulus Barbara Ertter 2002-5-11 17840 Contra Costa lower Emmons Canyon just outside of Mount Diablo State Park boundary. Comment
  OBI69745  Eucalyptus pulverulenta Jenn Yost & Matt Ritter, Matt Ritter 2008-11-15 362 Contra Costa Dan Sekella's House at 1410 Mohr Ct, Walnut Crk Comment
  JEPS87981  Eucrypta chrysanthemifolia Barbara Ertter 1991-6-1 10078 Contra Costa hills w Danville (e side of Wind Caves on Sycamore Trail to Devil's Hole); Las Trampas Regional Wilderness, Wind Caves 548 Comment
  CDA1171  Eucrypta chrysanthemifolia D. Kelch 1998-5-14 8 Contra Costa Mount Diablo; South slope of hill west of Mt. Zion. Comment
  JEPS111510  Eucrypta chrysanthemifolia var. chrysanthemifolia Dean G. Kelch and Andrew G. Murdock 2005-5-13 05 .273 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 22 Comment
  JEPS1727  Eucrypta chrysanthemifolia var. chrysanthemifolia W. L. Jepson 1891-6-9 21003 Contra Costa Fish Ranch Road; Berkeley Hills Comment
  UC570798  Euphorbia crenulata H. L. Mason 1926-3-7 2701 Contra Costa Mount Diablo Comment
  UC692712  Euphorbia crenulata Mary L. Bowerman 1935-3-16 2742 Contra Costa e fork Arroyo del Cerro; Mount Diablo 289 Comment
  CDA18900  Euphorbia oblongata V. Guise 2000-5-22 PDR 031724 Contra Costa East side of Bollinger Canyon Rd., San Ramon. 0 Comment
  UC1085269  Euphorbia oblongata Rimo Bacigalupi with G. T. Robbins 1956-5-11 5641 Contra Costa 0.25 mi nw (above) Glen Frazer Station (on Santa Fe Railway, along roadside in Franklin Canyon); Franklin Canyon 106 Comment
  UC1594191  Euphorbia oblongata Jerry Powell 1992-4-7 1636 Contra Costa Richmon Field Station Richmond Field Station Comment
  CDA4842  Euphorbia oblongata Margaret Bellue, A. Seeley Jun 1955 Contra Costa Highway 4, near Concord. 0 Comment
  OBI5339  Euphorbia oblongata T. C. Fuller 1961-7-6 6585 Contra Costa On bench above crk, Alhambra Valley, hwy 4, 0.5 mi W of Glen Frazier Station, ca 4 mi W of Martinez Comment
  UCD142407  Euphorbia oblongata William E. Davis 1981-4-23 s.n. Contra Costa Martinez; along Franklin Creek in John Muir National Historic Site. Comment
  CDA32926  Euphorbia spathulata D. G. Kelch 2009-5-24 9 .295 Contra Costa Carquinez Strait; Carquinez Loop Trail S of Ozol, S-SW of Martinez, nr Wolcott Ln . 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
  JEPS68932  Euthamia occidentalis Edward Lee 1934-9-30 1229 Contra Costa Moraga; just sw of station, tule swamp Comment
  CAS-BOT-BC310642  Euthamia occidentalis Virginia I. Dains; Walter Knight 1986-8-8 5468 Contra Costa Jct Rock S1 & Werner Cut Comment
  CAS-BOT-BC310643  Euthamia occidentalis Vincent Jones 1920-8-29 s.n. Contra Costa Orwood Comment
  CDA2178  Festuca arundinacea T. C. Fuller 1961-9-13 7002 Contra Costa Hwy J4, ca. 4 miles southeast of Byron. 0 Comment
  CAS-BOT-BC278272  Festuca californica J. W. Congdon 1896-5-29 s.n. Contra Costa Mt Diablo Comment
  UC692287  Festuca californica Mary L. Bowerman 1931-5-2 788 Contra Costa n end Eagle Point ridge; Mount Diablo Comment
  UC2028396  Festuca elmeri Barbara Ertter with Susan D'Alcamo 1998-6-12 16192 Contra Costa North Peak Trail south of Prospectors Gap on east side of Mount Diablo summit, NE-facing slope Comment
  UC2028533  Festuca microstachys Barbara Ertter with Tony Morosco 1998-4-12 15989 Contra Costa Base of Mount Olympia on north side of Mount Diablo. Comment
  CHSC116605  Festuca microstachys var. pauciflora Lowell Ahart; Josephine Guardino 2016-4-19 20792 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along south side of road exit at Los Vaqueros Marina, 2.3 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 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
  UC1103711  Festuca rubra J. P. Tracy 1900-3-24 615 Contra Costa Point Richmond San Francisco Bay Region 15 Comment
  UCD66332  Festuca rubra P. B. Kennedy 1919-5-1 s.n. Contra Costa North Berkeley. Hills. Comment
  CHSC75044  Foeniculum vulgare Roger Thom 1987-5-18 13 Contra Costa 1.0mi from intersection with Pleasant Hill Rd on Reliez Valley Road. Lafayette. (1600 block) 182 Comment
  UCD99590  Frankenia salina John Thomas Howell; Gordon H. True 1972-6-29 48919 Contra Costa on Byron Hot Springs Road southeast of Byron. Comment
  JEPS111552  Fraxinus angustifolia D. G. Kelch 2005-5-13 05 .250 Contra Costa Martinez Martinez. South of oil refinery along Railroad tracks in fragment of habitat 28 Comment
  UC1795649  Fraxinus dipetala Barbara Ertter, Brad Olson, Diane Lake, Seth Adams, et al. 1994-9-11 13081 Contra Costa Chaparral Springs addition to Mt. Diablo State Park, north side of Marsh Creek Road at high point southeast of Clayton, open oak woodland (Canyon live oak, blue oak, buckeye); north facing slope with local grove of Fraxinus, Aesculus, toyon. Comment
  UCD102397  Fraxinus dipetala 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
  JEPS111549  Fraxinus latifolia D. G. Kelch 2003-8-13 03 .143 Contra Costa Pinole Creek 68 Comment
  JEPS61960  Fritillaria affinis W. L. Jepson 1921-11-19 8524 Contra Costa Mount Diablo Comment
  UC765860  Fritillaria affinis R. F. Hoover 1939-4-13 4013 Contra Costa head of Markley Canyon, (west branch) Markley Canyon Comment
  JEPS61883  Fritillaria agrestis Miss Linda Gehringer 1915-3-27 Contra Costa east side of Mount Diablo Mount Diablo Comment
  UC13832  Fritillaria liliacea J. Burtt Davy 1900-3-24 6530 Contra Costa Stege; Western Middle California, Stege Comment
  CDA3561  Fumaria capreolata D. G. Kelch, A. G. Murdock 2005-5-5 5 .208 Contra Costa Carquinez Strait Region; Point Pinole - Giant Marsh. Giant Salt Marsh. Comment
  JEPS124468  Galium andrewsii subsp. gatense Daniel Slakey with CNPS Volunteers 2015-7-6 139 Contra Costa Mt Diablo, along Oak Knoll Trail about 350 meters east of Summit Rd. Comment
  CDA33841  Galium andrewsii subsp. gatense D. G. Kelch 2010-5-15 10 .119 Contra Costa Mt. Diablo. Trail from Juniper Camp to Deer Flat. 0 Comment
  UC691537  Galium aparine Mary L. Bowerman 1935-6-1 3101 Contra Costa gully e Mitchell-Pine Divide; Mount Diablo 975 Comment
  HSC19785  Galium aparine Greg Bos 1963-4-20 86 Contra Costa Pinole Valley Rd., SE of Pinole Flat Meadow area 76 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
  JEPS99946  Galium murale G. Smick 2003-4-3 GAS 163 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA0029048  Galium murale Barbara Ertter 1999-6-12 16703 Contra Costa Black Hawk Ridge Road between Knobcone Point Road and NE fork of Sycamore Creek, South side of Mount Diablo. 457 Comment
  RSA666412  Galium murale Barbara Ertter, Chris Thayer 1993-5-7 11715 Contra Costa Ca 1/2 mile N of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land E of Tilden Park. Grazing land on lower slopes S of Wildcat Canyon Road. Comment
  CHSC117389  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. 1036 Comment
  JEPS52754  Galium porrigens var. porrigens Lauramay T. Dempster 1963-5-30 3805 Contra Costa 15 El Toyonal Orinda Comment
  CAS-BOT-BC304349  Gamochaeta pensylvanica I. M. Johnston 1917-4-14 1841 Contra Costa Upland Comment
  UC1122641  Garrya elliptica R. C. Wilson 1935-3-29 163 Contra Costa 1 mi w Deer Flat; Mt. Diablo Quad. 685 Comment
  CAS-BOT-BC200626  Garrya elliptica W. W. Carruth 1902-4-1 s.n. Contra Costa E. Oakland Hills Comment
  UCSB29462  Garrya elliptica Havlik, Neil 1969-7-2 Contra Costa northeast slope of Grizzly Pk; Berkeley Hills 457 Comment
  UC692520  Garrya flavescens Mary L. Bowerman 1932-9-3 1539 Contra Costa Mount Diablo Summit; Mount Diablo Comment
  OBI14162  Garrya fremontii H. E. McMinn January1928 s.n. Contra Costa Summit Mt. Diablo 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
  UC585537  Gastridium ventricosum Virginia E. Long 1933-6-14 224 a Contra Costa ridge entering W Fork of Curry Cave trail canyon Mt. Diablo; , ridge entering W Fork of Curry Cave trail canyon Comment
  UC692411  Gastridium ventricosum Mary L. Bowerman 1931-5-2 798 a Contra Costa foot of Eagle Point ridge Mount Diablo; , foot of Eagle Point ridge 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
  UC1057453  Geranium dissectum G. Thomas Robbins 1937-4-25 142 Contra Costa e of La Vista Comment
  UCD103337  Geranium dissectum Morris Halperin 1929-4-21 s.n. Contra Costa Moraga Valley. Comment
  SBBG122899  Geranium rotundifolium B. Ertter 1996-6-4 14684 Contra Costa NE of jct of Grizzly Peak Blvd and Golf Course Drive, Tilden Regional Park 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
  UC691627  Gilia achilleifolia subsp. achilleifolia Mary L. Bowerman 1933-5-9 2059 Contra Costa Muir Area , Muir Area (Mount Diablo) Comment
  POM65956  Gilia capitata subsp. staminea Edward L. Greene 1903-4-25 2805 Contra Costa Antioch. Comment
  UC23453  Gilia capitata subsp. staminea J. Burtt Davy 1895-4-7 892 Contra Costa Antioch Comment
  UC517980  Gilia capitata subsp. staminea Lewis S. Rose 1933-4-17 33090 Contra Costa Antioch Comment
  RSA469347  Gilia capitata subsp. staminea H. de Forest 1930-5-6 s.n. Contra Costa [Unspecified] 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
  UC909004  Gilia clivorum Herbert L. Mason 1928-4-15 4358 Contra Costa top Moraga Ridge; top of Moraga Ridge Comment
  POM300968  Gilia clivorum Mary L. Bowerman 1935-4-19 2865 Contra Costa North Road, 6.3 miles from North Gate 610 Comment
  UCSB5069  Gilia clivorum Kamb, Peter; Chisaki, Francia 1950-3-18 Contra Costa Head of Pine Canyon; Mount Diablo 533 Comment
  JEPS28828  Githopsis diffusa subsp. robusta L. R. Heckard with P. Silva, R. Tucker 1962-4-22 1302 Contra Costa Lookout Point Picnic Area Mt. Diablo State Park 731 Comment
  SEINET10464451  Githopsis diffusa subsp. robusta Bowerman 1935-5-3 BOWERMAN 2952 Contra Costa Rock City Ridge (Fossil Ridge): hillside below the Jungle of the Garden Gods 488 Comment
  CDA38620  Glycyrrhiza glabra Godwyn / Vegas 2012-8-2 PDR# 1641315 Contra Costa Knightsen; north of Eden Plains Nusery. 0 Comment
  CDA35615  Gnaphalium californicum I. Godwyn 2011-5-12 PDR# 1649778 Contra Costa Richmond; Wildcat Canyon Regional Park, near McBryde Ave. 0 Comment
  CDA5999  Gnaphalium canescens subsp. beneolens D. G. Kelch, A. G. Murdock 2004-9-2 4 .345 Contra Costa Carquinez Strait Region; Martinez -West: Ozol Rock and Scenic Drive. Alhambra Road. South of Green Street. Comment
  CDA6000  Gnaphalium canescens subsp. beneolens D. G. Kelch, A. G. Murdock 2004-7-16 4 .318 Contra Costa Carquinez Strait Region; Martinez-South: Pine Street entrance to Route 4 heading west. Comment
  CAS-BOT-BC303201  Gnaphalium palustre J. (Germany) Bauer 1851-5-1 s.n. Contra Costa At Mt Diablo [Ad Mond Diabalo] Comment
  CAS-BOT-BC303891  Gnaphalium palustre Mary L. Bowerman 1935-6-28 3168 Contra Costa Mt Diablo. Chase Pond. S of summit, by Old Government Trail: dry upper margins of pond 548 Comment
  CDA31363  Gnaphalium ramosissimum D. G. Kelch 2006-8-11 6 .373 Contra Costa Carquinez Strait.; Top of Edward s Canyon. Crockett. 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
  SEINET3150085  Godetia purpurea L. S. Rose 1938-5-8 38224 Contra Costa Antioch 15 Comment
  UCD131656  Grindelia camporum Beecher Crampton 1950-6-20 594 Contra Costa Richmond, south of Cutting Blvd, open grassy field immediately adjacent to Carlson Blvd. north of Stege. 15 Comment
  CDA6078  Grindelia camporum var. camporum A. G. Murdock, D. G. Kelch 2004-5-28 284 Contra Costa Carquinez Strait; Pinole Peak. 0 Comment
  CAS-BOT-BC305222  Grindelia hirsutula Lewis S. Rose 1930-7-22 s.n. Contra Costa Concord Comment
  JEPS40435  Grindelia hirsutula William Turner 1965-11-23 Contra Costa in the sand hills just e Antioch (along the San Joaquin River); , in the Antioch sand hills Comment
  JEPS97556  Grindelia hirsutula R. D. Stone 645 Contra Costa 3 mi N of Altamont Pass Moller Ranch; Mount Diablo, Altamont Pass, Brushy Creek drainage 152 Comment
  UC1042334  Grindelia hirsutula Lewis S. Rose 1952-11-26 52020 Contra Costa Pittsburg 3 Comment
  UC161985  Grindelia hirsutula Katharine Brandegee 1911-7-6 Contra Costa near rr crossing Pt. Isabel Comment
  UCD150902  Grindelia hirsutula James A. Neilson Jr. 1972-10-21 3603 Contra Costa Walnut Creek drainage, near mouth of Walnut Creek. Elevation estimated using Google Earth by label maker. 0 Comment
  CAS-BOT-BC305224  Grindelia hirsutula John Thomas Howell 1930-9-28 5495 Contra Costa Liberty School on Marsh Creek Road Comment
  CAS-BOT-BC305229  Grindelia hirsutula John Thomas Howell 1929-7-7 4322 Contra Costa 2 miles s. of Rodeo Comment
  CAS-BOT-BC305231  Grindelia hirsutula John Thomas Howell 1929-7-7 4322 Contra Costa 2 miles south of Rodeo Comment
  SEINET10724143  Grindelia hirsutula John T. Middleton Middleton s.n. Contra Costa Seaside, Richmond. Comment
  UC2028054  Grindelia hirsutula var. hirsutula Barbara Ertter with Amy Rusev 1998-1-17 15905 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
  UCR197912  Grindelia robusta Beecher Crampton 1950-6-20 594 Contra Costa Richmond, south of Cutting Boulevard, immediately adjacent to Carlson Boulevard, north of Stege Ave. 15 Comment
  RSA144687  Grindelia stricta var. angustifolia G. Thomas Robbins 1958-10-2 3941 Contra Costa Along Southern Pacific Railroad just W of Carlson Blvd., near Stege railroad siding, Richmond. Comment
  UC691155  Guillenia flavescens Mary L. Bowerman 1935-6-8 3122 Contra Costa 2 mi from West road (= North Rd.) entrance (w of chaparral); Mount Diablo Comment
  JEPS68953  Guillenia lasiophylla Edward Lee 1935-3-10 1283 Contra Costa Donovan Road, w watershed of Kirker Creek Kirker Pass, Kirker Creek Comment
  UC1076516  Gutierrezia californica H. L. Mason 1929-9-21 5435 Contra Costa 3 mi above Clayton (Marsh Creek road) Comment
  UC1118612  Gutierrezia californica G. T. Nordstrom 1937-10-28 1406 Contra Costa 1.6 mi nne Somersville; Mt. Diablo Quad. 182 Comment
  CAS-BOT-BC304579  Gutierrezia californica John Thomas Howell 1929-9-21 4394 Contra Costa Marsh Creek Road 10 1/2 miles se. of Clayton Comment
  UCD85227  Hainardia cylindrica Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  UC2027822  Hainardia cylindrica Barbara Ertter with Dorothy Frantz 2001-5-10 17644 Contra Costa Castle Rock Recreation Area at mouth of Pine Canyon on west side of Mount Diablo, trodden roadside. Comment
  UC1795862  Hedera helix Barbara Ertter 1994-10-23 13915 Contra Costa Southwest El Cerrito, north edge Breuner's parking lot, northwest of Albany Hill. Comment
  UCD159534  Hedypnois cretica D. S. Park 2011-4-13 282 Contra Costa east side of Sunrise Hill Rd. Abundant. Not in flower/basal rosette. Disturbed/weedy habitat. Hillside. 181 Comment
  UC521669  Helenium puberulum Joseph Andorfer Ewan 1933-10-15 8026 Contra Costa above Indian Ceremonial Spr.; Mt. Diablo Comment
  CAS-BOT-BC305322  Helianthella castanea Alice Eastwood 1915-5-30 4475 Contra Costa Mitchel [Mitchell] Canyon, Mt. Diablo Comment
  CAS-BOT-BC305323  Helianthella castanea D. E. Breedlove 1970-4-18 17440 Contra Costa At the north edge of Lafayette above Laurel Drive 243 Comment
  CAS-BOT-BC305329  Helianthella castanea L. R. Abrams 1921-5-25 8028 Contra Costa At summit, Mt. Diablo Comment
  CAS-BOT-BC305331  Helianthella castanea H. M. Hall 1916-5-31 10137 Contra Costa Mt. Diablo, north slope of summit 1158 Comment
  JEPS21041  Helianthella castanea R. F. Hoover 1939-4-13 4014 Contra Costa head of west branch Markley Canyon Comment
  JEPS89719  Helianthella castanea Dean William Taylor 1971-3-28 976 Contra Costa at s. gate to Mt. Diablo State Park 609 Comment
  UC194922  Helianthella castanea H. M. Hall 1916-5-31 10137 Contra Costa n slope of summit Mt. Diablo 1158 Comment
  UC194923  Helianthella castanea H. M. Hall 1916-5-31 10137 a Contra Costa exposed flat on s side Mt. Diablo Comment
  UC62937  Helianthella castanea H. M. Evans 1907-4-6 Contra Costa Pine Canyon, Mt. Diablo Comment
  CAS-BOT-BC305324  Helianthella castanea W. C. McCalla 1925-4-22 s.n. Contra Costa Leona Heights near Oakland Comment
  CDA6202  Helianthus californicus D. G. Kelch 1996-10-17 s.n. Contra Costa Carquinez Strait; Pt Edith Marsh Comment
  UC1795663  Helianthus californicus Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14628 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; along stream above stable, riparian vegetation. 91 Comment
  UC2028257  Helianthus gracilentus Barbara Ertter 1999-6-12 16722 Contra Costa Knobcone Point Road on south side of Mount Diablo, burned chamissal at head of NE fork of Sycamore Creek. Comment
  UC1613441  Heliotropium curassavicum Charles M. Belshaw 1935-5-30 947 Contra Costa Island route about 10 mi n of Antioch Bridge Comment
  UC407041  Heliotropium curassavicum Ira L. Wiggins 1930-4-18 4606 Contra Costa Jersey Isl. Comment
  UCR197902  Heliotropium curassavicum Beecher Crampton 1949-7-15 486 Contra Costa Below original site of Judsonville, at head of Lone Tree Valley, along Sand Creek, just before coming to Lee Higgins Empire Ranch 114 Comment
  UC697141  Helminthotheca echioides Mary L. Bowerman 1936-10-24 3583 Contra Costa Mount Diablo, North Road 131 Comment
  CAS-BOT-BC305872  Helminthotheca echioides R. E. Frenkel 1964-2-22 365 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  CAS-BOT-BC305873  Helminthotheca echioides R. E. Frenkel 1964-6-20 593 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  CAS-BOT-BC305874  Helminthotheca echioides Mary L. Bowerman 1936-10-24 3583 Contra Costa Mount Diablo. North Road, beneath two-story house 131 Comment
  CAS-BOT-BC306266  Hemizonia congesta subsp. lutescens R. F. Hoover 1969-9-1 11568 Contra Costa Between San Pablo and Pinole Comment
  UC201233  Hemizonia congesta subsp. lutescens H. M. Hall 1914-8-23 9861 Contra Costa San Pablo 15 Comment
  CDA33542  Hemizonia congesta subsp. luzulifolia D. G. Kelch 2010-11-28 10 .449 Contra Costa El Sobrante. Hill above the junction of San Pablo Dam Rd and El Portal Dr (Quail Hill). Comment
  UC697164  Hemizonia congesta subsp. luzulifolia Mary L. Bowerman 1938-9-11 3713 Contra Costa where Sulphur Spring Canyon joins Curry Canyon; Mount Diablo 259 Comment
  CAS-BOT-BC314867  Hemizonia congesta subsp. luzulifolia John Thomas Howell 1955-8-24 30900 Contra Costa Near Diablo Country Club Comment
  UC691542  Hemizonia congesta subsp. luzulifolia Mary L. Bowerman 1932-5-1 1405 Contra Costa grassy knoll e of creek and just n water tank; Mount Diablo, Alamo Canyon Comment
  POM360297  Hemizonia fitchii Hattie Benton 1917-09 Contra Costa Mt. Diablo. Comment
  RSA137090  Hemizonia fitchii J. T. Howell 1955-8-24 30904 Contra Costa Mt. Diablo near Turtle Rock. 259 Comment
  RSA137096  Hemizonia luzulifolia J. T. Howell 1955-8-24 30900 Contra Costa Near Diablo County Club, south base of Mt. Diablo. Comment
  POM215122  Hemizonia parryi subsp. congdonii D. D. Keck 1933-11-2 2610 Contra Costa San Ramon, Crow Creek Canyon road, 0.5 miles from turnoff Comment
  CDA15242  Hemizonia pungens G. F. Hrusa, D. Crowe 1998-5-8 14373 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Comment
  RSA424742  Hemizonia pungens subsp. pungens Aaron Liston 1987-4-27 670 -4 Contra Costa 3 miles S of Byron. Comment
  SEINET7883354 Image available Hemizonia virgata L. S. Rose 1941-1 41467 Contra Costa 2 mi W of Byron Comment
  CHSC21758  Heracleum lanatum Carol Getzinger 1964-4-26 52 Contra Costa Arlington Boulevard at Cutting Boulevard. 30 Comment
  UC901877  Heracleum lanatum L. Constance 1950-6-25 3326 Contra Costa s. rim Wildcat Canyon (Tilden Park); , Tilden Park 365 Comment
  UCD127538  Heracleum maximum R. Tofsrud 1948-1 s.n. Contra Costa Exact location unknonw. Comment
  JEPS33796  Hesperevax sparsiflora W. L. Jepson 1925-4-26 10685 Contra Costa grassy adobe hills by Green Valley (Mt. Diablo); Mt. Diablo Comment
  JEPS111755  Hesperevax sparsiflora var. sparsiflora D. G. Kelch 2005-5-1 05 .203 Contra Costa Crockett - Edwards Canyon 100 Comment
  CDA18901  Hesperis matronalis V. Guise 2000-5-22 PDR 031723 Contra Costa on the east side of Tassajara Rd., Danville. 0 Comment
  UC2028049  Hesperocnide tenella Barbara Ertter 1998-2-15 15913 Contra Costa Shell Ridge Open Space on northwest base of Mount Diablo, outcrops on north side of Joaquin Ridge south of Indian Creek, +/- wooded. Comment
  CAS-BOT-BC167437  Hesperolinon breweri A. D. E. Elmer 1903-7-1 4545 Contra Costa Mount Diablo Comment
  JEPS122860  Hesperolinon breweri Adam C. Schneider with C. Matt Guilliams 2014-5-29 557 Contra Costa Mt. Diablo State Park. Trail to Murchio Gap. Comment
  JEPS22969  Hesperolinon breweri Volney Rattan Jun 1886 Contra Costa Mt. Diablo Comment
  POM86814  Hesperolinon breweri Katherine Brandegee 1907-6-16 s.n. Contra Costa Hills betweeen Antioch and Marsh Creek, on easterly side of Mt. Diablo Comment
  RSA151584  Hesperolinon breweri H. 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 305 Comment
  UC1212213  Hesperolinon breweri Rimo Bacigalupi and Alex Hawkes 1951-6-4 3360 Contra Costa saddle between main and n peaks Inner South Coast Ranges, Mount Diablo 883 Comment
  SJSU764  Hesperolinon californicum D. Bernsdorf 1942-5-30 Contra Costa Mt Diablo Comment
  UC692665  Hesperolinon californicum Mary L. Bowerman 1933-6-14 2279 Contra Costa Inner Black Hills w 1970; Mount Diablo Comment
  RSA445543  Hesperomecon linearis H. de Forest 1930-05 s.n. Contra Costa [No location data on label] Comment
  CDA981  Heteromeles arbutifolia D. G. Kelch 2006-6-23 06 .322-C Contra Costa Carquinez Strait; West Valona. West of the Zampa Bridge above San Pablo Ave. Along small stream draining north into the Western end of the Carquinez Strait. Comment
  JEPS99982  Heteromeles arbutifolia G. Smick 2003-2-20 GAS 50 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS20381  Heterotheca grandiflora Joseph P. Tracy 1932-9-10 10783 Contra Costa e of Pinole (on Franklin Canyon Road); Rodeo Creek 91 Comment
  JEPS40434  Heterotheca grandiflora William Turner 1965-11-23 Contra Costa just e Antioch (in the Antioch sand hills); San Joaquin River Comment
  JEPS79318  Heterotheca sessiliflora subsp. echioides Edward Lee with Annetta Carter 1935-8-17 1624 Contra Costa Antioch; sand-dunes Comment
  UC2012984  Heterotheca sessiliflora subsp. echioides Barbara Ertter with Lisa Schultheis 1996-9-2 15275 Contra Costa South side of Mount Diablo, west end of Blackhawk Ridge. Comment
  UC1555269  Heuchera micrantha R. C. Stebbins 1988-5-25 Contra Costa Memory and Packrat trails Tilden Park; , Tilden Nature Area Comment
  UC2028291  Heuchera micrantha Barbara Ertter, Dan Norris 1998-6-18 16226 Contra Costa Lower Devil's Slide trail along W Fork Sycamore Creek (madrone Canyon), south side of Mount Diablo. Comment
  CAS-BOT-BC203382  Hibiscus lasiocarpos var. occidentalis Ira L. Wiggins 1938-8-15 9006 Contra Costa Banks of Old River branch of San Joaquin River at Highway #4 Comment
  CAS-BOT-BC203383  Hibiscus lasiocarpos var. occidentalis Ira L. Wiggins 1938-8-15 9006 Contra Costa Banks of Old River branch of San Joaquin River at Highway #4 Comment
  CDA15278  Hirschfeldia incana G. F. Hrusa, D. Crowe, R. York 1998-7-17 14715 Contra Costa Sacramento Delta; E end of Dow Chemical property at Pittsburg. Comment
  CAS-BOT-BC55300  Hirschfeldia incana John Thomas Howell; Gordon H. True 1972-6-29 48929 Contra Costa Byron Hot Springs Road southeast of Byron. Comment
  CAS-BOT-BC325849  Holocarpha heermannii A. D. E. Elmer 1903-7-1 4613 Contra Costa Mt. Diablo 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
  CDA8362  Holocarpha heermannii D. G. Kelch, A. G. Murdock, M. K. Herzenach 2004-9-2 4 .329 Contra Costa Carquinez Strait; Near Summit of Mckewan Rd between Port Costa and I-4. Comment
  UC1069572  Holocarpha heermannii H. S. Yates 1934-9-2 4085 Contra Costa 2 mi s Mt. Diablo; Mt. Diablo Quadrangle Comment
  CAS-BOT-BC325838  Holocarpha heermannii J McMurphy 1909-9-25 s.n. Contra Costa Creek below Alamo Comment
  CAS-BOT-BC325842  Holocarpha heermannii H. M. Hall 1930-9-24 12887 Contra Costa Walnut Creek 1.7 miles below Alamo P.O. Comment
  CAS-BOT-BC325843  Holocarpha heermannii David D. Keck 1933-10-28 2605 Contra Costa 4.5 mi. SE of Martinez on road to Pacheco 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
  RSA81664  Holocarpha heermannii James I. McMurphy 1909-9-25 s.n. Contra Costa Below Alamo. Comment
  UC517968  Holocarpha obconica John Thomas Howell 1930-9-28 5501 Contra Costa dry hills along the Marsh Creek Road 5.4 mi from Byron Comment
  CAS-BOT-BC320241  Holocarpha obconica Margi Oard 1988-10-9 s.n. Contra Costa Ca. 2 miles east of junction with Deer Valley Road along north side of Marsh Creek Road Comment
  UC2029032  Holocarpha obconica Barbara Ertter 2002-11-11 18072 Contra Costa Round Valley Regional Preserve east of Mount Diablo, along Round Valley Creek/Miwok Trail Comment
  CAS-BOT-BC324611  Holocarpha virgata David D. Keck 1933-11-2 2620 Contra Costa Horse Valley between Lone Tree Way adn Marsh Creek Road, 6 miles from Antioch Comment
  LA203994  Holocarpha virgata John Thomas Howell; 1930-9-28 5501 Contra Costa on the Marsh Creek Road, 5.4 mi. from Byron Comment
  UC702534  Holocarpha virgata subsp. virgata L. S. Rose 1941-10-16 41467 Contra Costa 2 mi w Byron 33 Comment
  POM179764  Holocarpha virgata subsp. virgata J. T. Howell 1930-9-28 5500 Contra Costa 6.3 miles from Byron on the Marsh Creek Road. Comment
  RSA94065  Holocarpha virgata subsp. virgata J. T. Howell 1930-9-28 5501 Contra Costa 5.4 miles from Byron on Marsh Creek Road. Comment
  SEINET11915774  Holodiscus discolor M. T. Doutt 1930-1 76 Contra Costa Marsh Creek Comment
  LA14687  Hordeum jubatum H. S. Yates; 1936-8-11 6075 Contra Costa Baxter Creek 1280 Comment
  UCD85808  Hordeum marinum subsp. gussoneanum Brandegee 1916-5-9 s.n. Contra Costa Byron Springs. Comment
  UCD36911  Hordeum murinum subsp. glaucum Beecher Crampton 1956-5-14 3375 Contra Costa 5 miles south of Antioch, on Empire Mine Drive, at head of Deer Valley. Comment
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Aug 17 2011
  UCD86141  Hordeum murinum subsp. glaucum Beecher Crampton 1956-5-14 3375 Contra Costa 5 miles south of Antioch. At head of Horse Valley. Comment
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Aug 17 2011
  SEINET10892982  Hordeum murinum subsp. glaucum Alan A. Beetle Beetle 2924 Contra Costa On Taber Island, small island off N W side of Brooks Island, san Francisco Bay. 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
  UC723810  Horkelia californica subsp. frondosa Joseph Andorfer Ewan 1934-5-20 8926 Contra Costa n. side Mt. Diablo Mt. Diablo; , Russelmann Park Comment
  UC2027724  Horkelia californica var. frondosa Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15510 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  UCD106066  Hosackia crassifolia P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  JEPS96251  Hydrocotyle verticillata Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10863 Contra Costa just w. Antioch marina (along levee at water's edge, accessed from marina, Dow Wetlands Preserve); Dow Wetlands Preserve Comment
  JEPS1644  Hydrophyllum occidentale Mary L. Bowerman 1930-6-10 311 Contra Costa Meridian Peak summit; Mount Diablo Comment
  RSA691938  Hypericum calycinum Barbara Ertter 1993-6-25 11907 Contra Costa Oakland-Berkeley Hills, Grizzly Peak Boulevard ca 1/4 miles south of Tilden miniature steam trains (1/4 miles south of junction of Lomas Cantadas), mixed scrub forest. 488 Comment
  CAS-BOT-BC401301  Hypericum scouleri L. R. Abrams 1910-10-8 4347 Contra Costa Mt Diablo 914 Comment
  JEPS75561  Hypochaeris glabra P. F. York 1974-4-19 136 Contra Costa 1.7 km s of Bear Creek Rd Hampton Road; Hampton Road Natural Reserve. Briones Reservoir 170 Comment
  UC2028113  Hypochaeris glabra Barbara Ertter with Christopher Baysdorfer 1998-5-10 16108 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, roadside not far from Valley Vista trailhead. Comment
  JEPS78631  Isolepis cernua Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3306 Contra Costa Botany Cove Browns Island, Botany Cove Comment
  CDA8051  Iva axillaris R. DeBoer 1960-1-19 Contra Costa Toll Gate House, San Rafael Bridge, Richmond. 0 Comment
  UC1041107  Iva axillaris subsp. robustior J. W. Congdon 1893-7-29 Contra Costa Martinez Comment
  JEPS111674  Jaumea carnosa D. G. Kelch 2003-8-13 03 .99 Contra Costa Martinez Marsh 0 Comment
  SEINET11261292  Jaumea carnosa Barbara Ertter, Elizabeth Neese 1988-10-15 7975 Contra Costa Salicornia marsh W of I-580 in El Cerrito, W side along Rydin Road N of Central Avenue.; 0 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
  UC2029107  Jaumea carnosa Barbara Ertter 1990-9-30 9657 Contra Costa Point Pinole Regional Shoreline on San Pablo Bay, north Richmond; SW corner of park. Comment
  CAS-BOT-BC340120  Jaumea carnosa Walter Knight; Joanne Dean 1978-8-14 3129 Contra Costa Browns Island Comment
  SEINET1910273  Jaumea carnosa Barbara Ertter, Elizabeth Neese 1988-1 7975 Contra Costa Salicornia marsh @ of I-580 in El Cerrito, W side along Rydin Road N of Central Avenue. Comment
  UC1050492  Jovellana violacea N. Floy Bracelin 1942-5-24 1412 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  UCD146718  Juncus ambiguus G. F. Hrusa; D. Crowe 1998-5-8 14365 Contra Costa Sacramento-San Joaquin River Delta. Near San Joaquin River shore within Dow Chemical Property at Pittsburg. 10 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
  CHSC97914  Juncus balticus D. G. Kelch 2006-6-14 06 .334 Contra Costa Between Rte 4 and Carbon Rd. E Rodeo. 24 Comment
  JEPS112451  Juncus balticus D. G. Kelch 2005-4-24 05 .180 Contra Costa Franklin Canyon Franklin Canyon. Collier Hill. West Carbon. 16 Comment
  UC691983  Juncus bufonius var. bufonius Mary L. Bowerman 1931-4-4 635 Contra Costa Mount Diablo, 2 mi by road from West Entrance = North Gate Mount Diablo Comment
  JEPS108161  Juncus capitatus David Gowen 2005-6-4 403 Contra Costa Lime Ridge Open Space. Northeast corner of the park, just west of water tank.Growing in hard-packed eroded sandy area. Comment
  CDA9521  Juncus effusus D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .25 Contra Costa CA Delta; Along the old San Joaquin River Channel, S of Clifton Court Forebay and SE of Byron. Comment
  SD107680  Juncus occidentalis Walter Knight 1980-3-13 3740 Contra Costa Top of low bluffs along southern shore of San Pablo Bay, Point Pinole Regional Park. Comment
  UC1795655  Juncus occidentalis Barbara Ertter, Gary Schoolcraft, Tony Morosco 1996-4-6 14566 Contra Costa West end Oyster Point Rd in Mt Diablo State Park, moist meadow just east of junction. Comment
  UCD141649  Juncus occidentalis M. Wiesendanger 1926-5-1 1468 Contra Costa near Richmond. Comment
  UC2028588  Juncus oxymeris Barbara Ertter 1996-9-19 15299 Contra Costa Antioch Marina, edge of Dow Marsh lands. Comment
  CDA39263  Juncus phaeocephalus var. paniculatus J. Simmen 1971-5-27 s.n. Contra Costa Marsh Creek, Davis Camp, Brentwood. 0 Comment
  UC1795767  Juncus phaeocephalus var. paniculatus Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14232 Contra Costa South side Mount Diablo, Sheepherder Springs complex 1/2 mile north of Curry Point, wet ground in grassland. 487 Comment
  UC1157920  Juncus xiphioides Olive Dyer 1936-9-18 444 Contra Costa near Alvarado Park; Wildcat Canyon Comment
  UC1601855  Juncus xiphioides J. Burtt Davy 1897-9-4 4076 Contra Costa Stege Comment
  UC691976  Juncus xiphioides Mary L. Bowerman 1930-6-28 383 Contra Costa Canyon Nook Picnic Grounds Mount Diablo 670 Comment
  RSA352511  Juniperus californica Mark Morris 1929-03 s.n. Contra Costa Mt. Diablo. Comment
  SEINET191616  Juniperus californica L. S. Rose 1941-3-22 41052 Contra Costa Mt Diablo 914 Comment
  UC727702  Juniperus californica Milo S. Baker 1946-1-1 11255 Contra Costa ca halfway to summit Mt. Diablo (near roadside at parking place) Comment
  UC81  Juniperus californica A. Kellogg 78 Contra Costa Mt. Diablo Comment
  UC306590  Keckiella corymbosa A. D. E. Elmer Jul 1903 4956 Contra Costa Mount Diablo Comment
  UC585510  Koeleria macrantha Virginia E. Long 1933-6-14 223 a Contra Costa between Curry Cave trail canyon and W. Fork Mt. Diablo; , btw Curry Cave trail canyon and W. Fork Comment
  UC691222  Koeleria macrantha Mary L. Bowerman 1931-5-2 796 Contra Costa n end of Eagle Point ridge Mount Diablo (in canyon on n face, upper end); , n end of Eagle Point Ridge Comment
  CAS-BOT-BC273616  Koeleria pyramidata Virginia E. Long 1933-6-14 223 a Contra Costa Mt. Diablo. Between Curry-Cave trail canyon and W. fork 457 Comment
  UC1050315  Kolkwitzia amabilis N. Floy Bracelin 1943-7-4 1584 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC499188  Kopsiopsis strobilacea W. W. Carruth no date on label s.n. Contra Costa Moraga Valley Comment
  CDA7170  Lactuca serriola D. G. Kelch 2006-7-14 6 .331 Contra Costa Carquinez Strait; Along Marine Vista Ave immmediately west of Pacheco Slough. East of Martinez. Comment
  RSA74883  Lactuca serriola Elroy Robinson 1935-9-14 s.n. Contra Costa Martinez Comment
  CAS-BOT-BC340540  Lactuca serriola John Thomas Howell; Gordon H. True 1972-7-29 48918 Contra Costa On Byron Hot Springs Road southeast of Byron Comment
  UCR66430  Lactuca virosa J. T. Howell 1943-8-22 19310 Contra Costa San Francisco Bay Region/Coast Range, near head of San Leandro Creek Canyon 244 Comment
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Jul 7 2009
  CAS-BOT-BC340695  Lactuca virosa John Thomas Howell 1943-8-22 19310 Contra Costa Pinehurst Canyon, Oakland Hills Comment
  RSA40156  Lactuca virosa J. T. Howell 1943-8-22 19310 Contra Costa Near head of San Leandro Creek Canyon. 244 Comment
  CAS-BOT-BC341478  Lagophylla ramosissima L. R. Abrams 1910-10-8 4337 Contra Costa Glenn Valley, Mt Diablo 304 Comment
  UC579839  Lamium amplexicaule Annetta Carter 1937-4-4 1230 Contra Costa about 10 mi e Pinole; Vaca Canyon Comment
  UC2028539  Lamium amplexicaule Barbara Ertter 1998-3-1 15920 Contra Costa Shell Ridge Open Space on northwest base of Mount Diablo, Sulfur Creek upstream from Good's Spring. Comment
  CAS-BOT-BC412726  Lastarriaea coriacea Alice Eastwood 1921-4-18 10275 Contra Costa Antioch Comment
  CAS-BOT-BC337978  Lasthenia californica Volney Rattan 1879-1-1 s.n. Contra Costa Antioch Comment
  CDA8107  Lasthenia californica D. G. Kelch 1992-3-21 1827 -A Contra Costa 2.5 mi. SE of Byron; along RR tracks, N of junction of Holey Rd. and Byron Hwy. 0 Comment
  CAS-BOT-BC337981  Lasthenia californica H. M. Hall 1901-4-5 1749 Contra Costa San Francisco Bay. Mt Diablo Comment
  RSA523885  Lasthenia californica Barbara Ertter, Jim Jokerst, D. Magney 1989-4-5 8119 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  JEPS10382  Lasthenia californica subsp. californica W. L. Jepson 1931-4-5 15718 Contra Costa adobe flat in hills about Nortonville 457 Comment
  CAS-BOT-BC324458  Lasthenia conjugens Barrett Anderson; Thomas Scofield 1995-4-25 4553 Contra Costa Along Highway 4 approximately 2.38 km east of Interestate 80 Highway 4 interchange near Rodeo 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
  UC33073  Lasthenia conjugens Edw. L. Greene 1887-4-17 Contra Costa Antioch Comment
  CAS-BOT-BC324463  Lasthenia conjugens Milo S. Baker 1946-4-20 11330 Contra Costa Near Concord Comment
  UC762046  Lasthenia fremontii R. F. Hoover 1937-5-14 2118 Contra Costa Byron Hot Springs Comment
  RSA113973  Lasthenia fremontii Peter H. Raven, H. L. Mason, Robert Ornduff 1957-4-3 10597 Contra Costa 3.0 miles S of Byron. Comment
  RSA523884  Lasthenia fremontii Barbara Ertter, Jim Jokerst, D. Magney 1989-4-5 8136 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  JEPS35363  Lasthenia glaberrima W. L. Jepson 1892-5-24 Contra Costa Mt. Diablo Comment
  UC194265  Lasthenia glaberrima Edward Lee Greene 1886-5-24 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC352926  Lasthenia glaberrima Kellogg 1870-4-20 s.n. Contra Costa Antioch Comment
  UCD133763  Lasthenia glabrata subsp. glabrata P. B. Kennedy 1925-4-26 s.n. Contra Costa Mt. Diablo. Comment
  JEPS10186  Lasthenia gracilis W. L. Jepson 1925-4-26 10684 Contra Costa sw Mount Diablo; Black Hills Comment
  JEPS89771  Lasthenia gracilis Dean William Taylor 991 Contra Costa along Byron Road (J4) at the junction of Holley Road; Byron Road 15 Comment
  UC1363810  Lasthenia gracilis Robert Ornduff 1958-3-22 4809 Contra Costa 1.5 mi sw Buchanan Road junction (along side of Kirker Pass) Comment
  UC1563907  Lasthenia gracilis Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8119 Contra Costa alkali sink w and adjacent to Clifton Court Forebay (ca. 15 air mi sw of Stockton) 0 Comment
  CAS-BOT-BC367585  Lasthenia microglossa Alice Eastwood; John Thomas Howell 1936-4-19 2139 Contra Costa Nortonville Comment
  UC89980  Lasthenia microglossa unknown 1890-4-22 Contra Costa near Antioch Comment
  CAS-BOT-BC367594  Lasthenia microglossa Roxana S. Ferris 1924-4-12 4080 Contra Costa Mitchell Canyon. Mt Diablo Comment
  SEINET3387255 Image available Lasthenia minor Lewis S. Rose 1933-3-29 33039 Contra Costa Nortonville. Comment
  CAS-BOT-BC370829  Lasthenia platycarpha Alice Eastwood 1914-3-14 3823 Contra Costa Byron Springs Comment
  JEPS10875  Lasthenia platycarpha Edw. L. Greene 1889-3-23 Contra Costa Byron Comment
  UC90011  Lasthenia platycarpha E. L. Greene 1884-1-1 Contra Costa Byron Springs Comment
  JEPS89027  Lathyrus jepsonii var. californicus Volney Rattan 1887-5-22 Contra Costa Alhambra Valley Comment
  JEPS112330  Lathyrus latifolius Dean G. Kelch and Andrew G. Murdock 2004-6-19 04 .284 Contra Costa Crockett - Tormey Headlands; County: Contra Costa; North-facing hill above / along railroad tracks. West of Carquinez Bridge. Crockett contra Coasta Country CA. Comment
  CHSC39488  Lathyrus sulphureus Tyler Williams; V. Oswald 1984-4-18 21 Contra Costa Mt. Diablo. Ca. 5 yd e of turnout on Summit Rd., 0.1 mi e of Junction Ranger Station in Mount Diablo State Park. 609 Comment
  POM19374  Lathyrus vestitus subsp. vestitus W. L. Jepson 1891-6-9 6801 Contra Costa Contra Costa Comment
  POM19744  Lathyrus vestitus subsp. vestitus C. F. Baker 1903-4-28 2944 Contra Costa Mitchells Canyon, Mt. Diablo. Comment
  RSA720810  Lavatera assurgentiflora Barbara Ertter 1994-6-6 12822 Contra Costa Point Isabel in south Richmond Comment
  CAS-BOT-BC323909  Layia chrysanthemoides M. K. Curran 1884-1-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC323927  Layia chrysanthemoides Alice Eastwood 1921-4-18 10257 Contra Costa Antioch Comment
  UC650363  Layia chrysanthemoides Ira L. Wiggins 1930-4-17 4572 Contra Costa s Byron Comment
  JEPS13505  Layia gaillardioides Robert F. Hoover 1936-4-16 973 Contra Costa e slope of Bald Peak e of Tilden Regional Park; San Pablo Ridge Comment
  UC691553  Layia gaillardioides Mary L. Bowerman 1933-5-5 2001 Contra Costa toward mouth Alamo Canyon; Mount Diablo 304 Comment
  CAS-BOT-BC321749  Layia gaillardioides John Thomas Howell 1941-4-6 16176 Contra Costa Deer Flat, Mt. Diablo Comment
  UC2027818  Layia gaillardioides Barbara Ertter with Stu Garrett 1997-3-29 15531 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  UCSC000762  Layia gaillardioides H. M. Hall 1900-5-24 s.n. Contra Costa Mt. Lawson Comment
  UC202677  Layia glandulosa unknown 1889-4-15 Contra Costa Comment
  UC905616  Layia hieracioides David D. Keck 1941-6-5 5307 Contra Costa 1/4 mi w of e portal of Broadway Tunnel Fish Creek Rd.; Berkeley Hills Comment
  CAS-BOT-BC370667  Layia platyglossa C. F. Baker 1903-5-28 2874 Contra Costa Antioch Comment
  UC691492  Layia platyglossa Mary L. Bowerman 1933-5-2 1965 Contra Costa below and a little w Pioneer Camp; Mount Diablo Comment
  UC697166  Layia platyglossa Mary L. Bowerman 1935-4-26 2916 Contra Costa ridge w of Indian Ceremonial Spring; Mount Diablo 1005 Comment
  POM361692  Layia platyglossa subsp. campestris H. de Forest 1930-4-6 s.n. Contra Costa S.E. of Mortonville. Small coal mine ravine. 244 Comment
  POM53355  Layia platyglossa subsp. platyglossa C. F. Baker 1903-5-28 2874 Contra Costa Antioch. 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
  UC1100312  Leersia oryzoides Malcolm A. Nobs 1948-9-23 681 Contra Costa 7 mi s of Kingston (Rock Slough); Rock Slough Comment
  UC692108  Lemna minor Mary L. Bowerman 1933-9-9 2427 Contra Costa n of Curry Canyon (Mount Diablo, Blackberry Spring); Mount Diablo, Blackberry Spring Comment
  JEPS111002  Lepechinia calycina W. L. Jepson Jun 1909 Contra Costa Mt. Diablo Comment
  RSA83333  Lepechinia calycina F. W. Peirson 1923-7-1 3832 Contra Costa Mt. Diablo Comment
  UC691400  Lepechinia calycina Mary L. Bowerman 1938-5-28 3648 Contra Costa Mount Diablo 853 Comment
  CAS-BOT-BC215740  Lepechinia calycina Mary L. Bowerman 1930-6-10 317 Contra Costa Meridian Peak, roadside little below the summit, Mt. Diablo Comment
  RSA0033849  Lepidium coronopus Barbara Ertter 1999-7-17 16762 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, Rifle Range Road. Comment
  UC2029022  Lepidium coronopus Barbara Ertter 1999-7-17 16762 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, Rifle Range Road. Comment
  UC2070552  Lepidium coronopus Barbara Ertter 2002-5-11 17839 Contra Costa Southwest base of Mount Diablo, base of Emmons Canyon fire road. Comment
  RSA788058  Lepidium dictyotum var. acutidens L. S. Rose 1949-3-24 49012 Contra Costa 4 mi south of Byren 8 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
  CHSC67908  Lepidium dictyotum var. dictyotum James D. Jokerst 1989-3-29 3073 Contra Costa Byron Hot Springs area NE of Livermore, adjacent to pipeline on terrace S of ephemeral creek. Comment
  CAS-BOT-BC89713  Lepidium latifolium W. Knight; I. Knight 1977-5-22 s.n. Contra Costa Antioch Dunes. Comment
  UC1535348  Lepidium latifolium Ernest L. Gordon 1987-6-1 Contra Costa Martinez Regional Shoreline, across from the railroad depot, in park Martinez Regional Shoreline Comment
  UC1607701  Lepidium latifolium Barbara Ertter 1991-5-12 9810 Contra Costa sw corner El Cerrito (Point Isabel Regional Shoreline, n of park); San Francisco Bay, Point Isabel Regional Shoreline Comment
  CAS-BOT-BC89716  Lepidium latifolium Walter Knight 1978-8-12 3231 Contra Costa Ca. 0.8 mile east of Point Pinole. Comment
  CAS-BOT-BC89717  Lepidium latifolium Walter Knight; Harry Reeves 1979-8-21 3411 Contra Costa East of reservoir. Contra Loma Regional Park, Antioch. 22 Comment
  JEPS53660  Lepidium latipes W. L. Jepson 1918-6-4 7594 Contra Costa near Clayton; Mt. Diablo, Donner Canyon 137 Comment
  POM172656  Lepidium latipes Chesnut, E. R. Drew 1889-4-16 s.n. Contra Costa Concord. Comment
  CAS-BOT-BC89893  Lepidium nitidum Alice Eastwood 1921-4-18 10259 Contra Costa Antioch. Comment
  CAS-BOT-BC89896  Lepidium nitidum Lewis S. Rose 1933-3-29 33045 Contra Costa Pittsburg. Comment
  CAS-BOT-BC89897  Lepidium nitidum Lewis S. Rose 1933-3-29 33045 Contra Costa Pittsburg. Comment
  CHSC21607  Lepidium nitidum Willis Ball 1975-2-23 446 Contra Costa Contra Loma Regional Park. In area #2. Ca. 160 yds w of main parking lot. 30 Comment
  JEPS73692  Lepidium oxycarpum L. R. Heckard with Wm. Hirano and Ted Niehaus 1968-3-5 1761 Contra Costa about 3 mi se Byron (at junction of Holey Road, along Byron-Bethany road) 7 Comment
  UC1795745  Lepidium strictum Barbara Ertter, Mary Bowerman et al. 1995-5-7 14051 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, middle of dirt road below houses, edge of blue oak. Comment
  UCD115836  Lepidium strictum G. Thomas Robbins 1959-4-26 4006 Contra Costa About 1 mile northeast of Giant and about one-fourth mile north of San Pablo Oil Tank Farm. 7 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
  CAS-BOT-BC274013  Leptochloa fusca subsp. uninervia Beecher Crampton 1959-10-19 5467 Contra Costa Vasco Road just north of its junction with Mt. Diablo Road, 4 miles south of Brentwood Comment
  CAS-BOT-BC226592  Leptosiphon ambiguus Mary L. Bowerman 1934-3-18 2481 Contra Costa Mount Diablo. West of Russelman Park on edge of Donner Canyon Comment
  UC2027727  Leptosiphon bicolor Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15507 a Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  UCD118625  Leptosiphon bicolor Laurence S. Jones 1934-4-8 s.n. Contra Costa West slopes of Mt. Diablo. 609 Comment
  UCD118881  Leptosiphon liniflorus J. M. Tucker 1963-4-12 3686 Contra Costa on west side of Holey Road, 3 miles southeast of Byron. Comment
  CAS-BOT-BC324117  Lessingia glandulifera var. glandulifera L. S. Rose 1955-10-17 55185 Contra Costa Antioch 15 Comment
  JEPS100184  Lessingia glandulifera var. glandulifera David Gowen 2003-7-6 s. n. Contra Costa Lime Ridge Open Space; Ridge trail in the N section of the park and S of the water tank Comment
  JEPS79353  Lessingia pectinata var. tenuipes Edward Lee with Annetta Carter 1935-8-17 1621 Contra Costa Antioch Comment
  UC691812  Lessingia pectinata var. tenuipes Mary L. Bowerman 1936-8-25 3535 Contra Costa due w of 1004 point Lime Ridge (and n of the chaparral patch); Mount Diablo, Lime Ridge 228 Comment
  CAS-BOT-BC444385  Lewisia rediviva Paul F. Covel 1940-5-12 s.n. Contra Costa Summit, Mt. Diablo Comment
  CDA39047  Leymus X multiflorus D. G. Kelch 2011-6-5 11 .576 Contra Costa Carquinez Strait; South of Crockett, south of Cummings Skyway. Comment
  JEPS25155  Leymus X multiflorus G. Thomas Robbins with John Weiler 1959-5-23 4026 Contra Costa Brooks Island San Francisco Bay, Richmond (slopes on w side) Comment
  JEPS78895  Leymus X multiflorus Edward Lee 1935-8-13 1616 Contra Costa Vaca Canyon; roadside Comment
  SEINET10925827  Leymus X multiflorus Edward Lee 1935-8-13 Lee 1616 Contra Costa With stolons. Open grassy roadside. Vaca Canyon. Comment
  SEINET257984 Image available Leymus X multiflorus M. Barkworth, D Amme 1989-6-15 5169 Contra Costa Bluffs back of beach just north of Castro Point Comment
  UC909772  Leymus X multiflorus Milo S. Baker 1950-5-20 12226 Contra Costa roadside between Martinez and Port Costa Comment
  UCD38560  Leymus X multiflorus Beecher Crampton 1956-5-14 3424 Contra Costa 3.2 miles W of Martinez, on the road to Crockett. Above Suisun Bay. Comment
  RSA63664  Leymus condensatus Milo S. Baker 1950-5-22 12226 Contra Costa Roadside between Martinez and Pt. Costa Comment
  CDA19893  Leymus triticoides R. M. Case 2002-6-1 PDR P 099532 Contra Costa Northern California; Highland Rd & Collier. 0 Comment
  RSA108362  Leymus triticoides Frank W. Gould 1941-5-6 1286 Contra Costa 2.3 miles from Walnut Creek on Danville road. 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
  RSA0026158  Leymus triticoides Barbara Ertter 2000-7-29 17448 -a Contra Costa Lower Donner Canyon just above Donner Cabin site, on north side of Mount Diablo. 213 Comment
  RSA108334  Leymus triticoides Frank W. Gould 1941-7-4 1302 Contra Costa On wastelands along Bay just north of Albany race track. Comment
  RSA0029782  Lilaea scilloides Barbara Ertter, Alan Prather 2003-6-7 18191 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, pond NE of main trailhead. Comment
  CAS-BOT-BC211109  Lilaeopsis masonii Walter Knight; Irja Knight 1977-6-18 s.n. Contra Costa Antioch Sand Dunes, Little Corral site Comment
  UC692007  Lilium pardalinum Mary L. Bowerman 1935-6-21 3144 Contra Costa e fork Arroyo del Cerro; Mount Diablo 289 Comment
  UC971818  Limnanthes douglasii subsp. rosea Charles T. Mason Jr. 1948-3-27 1134 Contra Costa 0.1 mi s Byron Hot Springs road (along Byron-Bethany road) Comment
  RSA756697  Limnanthes douglasii subsp. rosea Barbara Ertter, Jim Jokerst, Dave Magney 1989-4-5 8115 Contra Costa Alkali sink W and adjacent to Clifton Court Forebay, ca 15 air miles SW of Stockton 0 Comment
  UC1949286  Limnanthes douglasii subsp. rosea Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 Contra Costa sink W and adjacent to Clifton Court Forebay, ca 15 airmiles SW of Stockton Comment
  SEINET1909954  Limnanthes douglasii var. rosea Barbara Ertter, Jim Kokerst, Dave Magney 1989-1 8115 Contra Costa San Diendo Co.: Black Mt. N Romona along clevland NF Rd 11S04 2.3 mi from Pamo Valley Rd, roadcut. 457 Comment
  UC691636  Linanthus androsaceus Mary L. Bowerman 1933-4-15 1861 Contra Costa 2nd ridge se Arroyo del Cerro; Mount Diablo Comment
  UC1607629  Linanthus bicolor Barbara Ertter, Lynne Hosley 1993-4-17 11509 Contra Costa ca 10 air mi n Livermore (hills in lee of Mt. Diablo, e side of open meadow along Blue Oak trail); Morgan Territory 609 Comment
  UC1925900  Linanthus ciliatus Donald G. Nelson 1937-4-29 517 Contra Costa Road from Pinole S towards Alhambra Road. Comment
  UC30155  Linanthus ciliatus W. H. Brewer 1862-5-22 1138 Contra Costa e of Mount Diablo Comment
  UC449794  Linanthus ciliatus Chesnut and Drew 1889-4-17 Contra Costa Sommersville Comment
  UC106751  Linanthus liniflorus E. L. Greene Contra Costa Byron Springs Comment
  JEPS116915  Linanthus pygmaeus subsp. continentalis David Gowen 2009-4-4 981 Contra Costa Hard packed sandy area just south of Las Trampas Ridge Trail and about 1/4 mile west of junction with Del Amigo Trail. Comment
  UC1050873  Linaria maroccana N. Floy Bracelin 1941-5-11 1302 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  CDA29106  Linum bienne D. G. Kelch 2006-5-7 06 .148-B Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  JEPS116495  Linum grandiflorum J. Greenhouse with John Game 2008-5-26 5127 Contra Costa Lime Ridge Open Space, Paradise Canyon Trail above subdivision 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
  UC402493  Lithophragma affine Chestnut and Drew 1889-4-16 Contra Costa Martinez Comment
  POM203654  Lithophragma affine subsp. affine John T. Howell 1933-5-14 11280 Contra Costa Hills east of St. Mary s college Comment
  RSA468227  Lithophragma affine subsp. affine H. de 1930-4-6 s.n. Contra Costa [No locality information provided] Comment
  UC1050466  Lobelia laxiflora N. Floy Bracelin 1941-5-4 1262 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS100141  Logfia gallica G. Smick 2003-4-29 GAS 152 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS111757  Logfia gallica D. G. Kelch 2005-5-13 05 .238 Contra Costa Martinez Martinez. South of oil refinery along Railroad tracks in fragment of habitat 28 Comment
  UC1795896  Logfia gallica Barbara Ertter, Chris Thayer 1995-4-25 13992 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Devil's Slide area of Sycamore Canyon, roadside thru chaparral zone. 304 Comment
  UCD38198  Logfia gallica Beecher Crampton 1950-6-20 595 Contra Costa 1 mile north of Richmond. Triangle Court. Comment
  SEINET2074966  Lolium multiflorum S. J. Gibbs 1970-3-27 Contra Costa Oak View Terrace, 3 mi. N.E. of P.O. 121 Comment
  UC691261  Lolium temulentum Mary L. Bowerman 1932-4-27 1367 Contra Costa Oyster Ridge, s face Mount Diablo (w-facing slope of ridge w of Riggs Canyon); , Oyster Ridge, s face Comment
  JEPS111626  Lomatium caruifolium D. G. Kelch 2005-3-25 05 .81 Contra Costa Fernandez Ranch Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak on ridge East of Pinole Park 115 Comment
  JEPS111613  Lomatium dasycarpum D. G. Kelch 2004-4-25 04 .126 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Scenic Dr. 30 Comment
  UC691420  Lomatium dasycarpum subsp. dasycarpum Mary L. Bowerman 1932-2-28 1095 Contra Costa W of Blackberry Spring; Mount Diablo Comment
  UC691421  Lomatium dasycarpum subsp. dasycarpum Mary L. Bowerman 1932-4-27 1395 Contra Costa canyon W of Riggs Canyon (Oyster Ridge, S face); Mount Diablo 304 Comment
  UCD102387  Lomatium nudicaule Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. North Peak Road to North Peak. 920 Comment
  UC1123066  Lomatium utriculatum C. M. Belshaw 1936-5-12 2103 Contra Costa 2 mi ESE of Mt. Diablo summit 335 Comment
  UC21269  Lomatium utriculatum Alice Eastwood 1894-5-3 Contra Costa Antioch Comment
  JEPS12841  Lonicera hispidula var. vacillans W. L. Jepson May 23 1891-May 24 1891 Contra Costa Mt. Diablo Comment
  UCSB24472  Lonicera involucrata McMinn, Howard; Maino, E. 1931-3-9 Contra Costa Leona Canyon Comment
  UC650409  Lonicera involucrata var. ledebourii Ira L. Wiggins 1930-4-18 4594 Contra Costa levee on e end Jersey Island Comment
  CAS-BOT-BC241409  Lonicera japonica Walter Knight; Irja Knight; J. T. Howell; E. McClintock 1978-9-5 3221 Contra Costa Browns Island, old habitation site at west end of island Comment
  UCD137367  Lonicera subspicata M. Wiesendanger 1925-5-1 1480 Contra Costa San Miguel. Comment
  UC691485  Lonicera subspicata var. denudata Mary L. Bowerman 1931-6-4 922 Contra Costa summit Mount Diablo (on n face) Comment
  SEINET10832893  Lotus Frenkel 1964-3-18 FRENKEL 400 A Contra Costa On giant road, .4 mi n of atsf rr crossing, richmond. 15 Comment
  UC775175  Lotus denticulatus Herbert L. Mason 1945-5-31 Contra Costa nw of St. Mary's College; Cashion Canyon Comment
  UC15642  Lotus micranthus W. H. Brewer 1862-5-26 1173 Contra Costa near Monte Diablo Comment
Read comments
May 4 2008
  UC2028272  Lotus micranthus Barbara Ertter 1999-6-12 16705 Contra Costa Black Hawk Ridge Road between Knobcone Point Road and NE fork of Sycamore Creek, South side of Mount Diablo. Comment
  UC1129013  Lotus purshianus var. purshianus C. M. Belshaw 1936-5-13 2123 Contra Costa n of Horse Valley; Mt. Diablo Quad. 121 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
  UC692538  Lotus scoparius Mary L. Bowerman 1932-9-24 1589 Contra Costa ridge running w from Twin Peaks; Mount Diablo 335 Comment
  UC1795732  Lotus scoparius var. scoparius Barbara Ertter, Brad Olson 1994-5-7 12761 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  RSA181412  Lotus strigosus James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  SEINET3560064 Image available Lotus subpinnatus Rimo Bacigalupi, L. R. Heckard 1965-5-11 9082 Contra Costa Brooks Island 30 Comment
  UC692264  Lotus wrangelianus Mary L. Bowerman 1931-4-4 639 Contra Costa 2 rd mi from Mount Diablo w entrance (= North Gate); Mount Diablo Comment
  UC692266  Lotus wrangelianus Mary L. Bowerman 1932-4-27 1393 Contra Costa canyon w of Riggs Canyon (s-face of Oyster Ridge); Mount Diablo, Oyster Ridge 335 Comment
  JEPS100069  Lotus wrangelianus G. Smick GAS 74 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS111572  Ludwigia peploides D. G. Kelch 2004-7-9 04 .299 Contra Costa Port Costa - Reservoir. Port Costa pond 28 Comment
  UC726775  Lupinus A. A. Heller 1938-4-9 15019 Contra Costa near the w end Antioch Bridge; near the w end of the Antioch Bridge Comment
  POM318910  Lupinus Patricia Wilder 1961-8-29 1073 Contra Costa Walnut Creek, near Calif. Hwy 24 west side of city; Coast Mt. Range 42 Comment
  CHSC67947  Lupinus albifrons James D. Jokerst 1989-3-31 3077 Contra Costa Rocky hillside E of creek in Brushy Creek Canyon. Comment
  CAS-BOT-BC201366  Lupinus albifrons var. albifrons Alice Eastwood; John Thomas Howell 1936-4-19 2146 Contra Costa Antioch 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
  CAS-BOT-BC196217  Lupinus albifrons var. eminens C. F. Baker Apr. 25 2823 Contra Costa Antioch Comment
  CDA27417  Lupinus bicolor D. G. Kelch, A. G. Murdock 2005-4-15 5 .146 Contra Costa Carquinez Strait Region; Rodeo Creek. EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump). Comment
  JEPS112402  Lupinus bicolor Dean G. Kelch and Andrew G. Murdock 2005-4-24 05 .166 Contra Costa Franklin Canyon; County: Contra Costa; Franklin Canyon, Contra Costa County, CA. Collier Hill. West Carbon. Comment
  UC1197281  Lupinus bicolor J. P. Tracy 1900-3-24 624 Contra Costa Dry Hill Point Richmond (Point Richmond); Region about San Francisco Bay, Point Richmond 15 Comment
  UC33589  Lupinus bicolor J. P. Tracy 1900-3-24 624 Contra Costa Point Richmond San Francisco Bay, Point Richmond (Dry Hill) 15 Comment
  JEPS111069  Lupinus bicolor Lee Echols 2003-4-1 s.n. Contra Costa N of Lark Drive in SE portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 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
  UC33550  Lupinus bicolor Prof. Greene 1888-5-1 Contra Costa near Moraga V.; near Moraga V. Comment
  UCD32372  Lupinus bicolor Beecher Crampton 1950-4-1 498 c Contra Costa 1 mile north of Richmond, near S.P. Railroad tracks. 15 Comment
  UCD35142  Lupinus bicolor Beecher Crampton 1952-2 498 a-d Contra Costa 1 mile north of Richmond. Comment
  POM350151  Lupinus bicolor subsp. microphyllus H. de Forest 1930-4-6 s.n. Contra Costa [No location information provided.] Comment
  RSA442325  Lupinus bicolor subsp. microphyllus H. de Forest 1930-4-12 14147 Contra Costa Coalinga Comment
  SEINET10484947  Lupinus bicolor subsp. tridentatus Charles Piper Smith 1922-4-15 Smith 3487 Contra Costa Los medanos - southern pacific. Comment
  CAS-BOT-BC187857  Lupinus chamissonis John Thomas Howell 1926-12-27 2272 Contra Costa 1.5 miles S of Oakley Comment
  CDA934  Lupinus formosus D. G. Kelch 2005-6-14 5 .334 Contra Costa East Bay; San Pablo. North Alvarado Park, south of San Pablo Dam Rd. Comment
  UC2061498  Lupinus formosus Dean G. Kelch 2016-5-23 16 .124 Contra Costa Carquinez Strait: Hill between Cumming's Skyway & Canada de Cierbo. Comment
  UCD107777  Lupinus formosus L. S. Smith 1916-5-10 s.n. Contra Costa Grand View Terrace - San Pablo. Comment
  UCR274616  Lupinus latifolius Daisie Huang 2006-7-18 60718- 05 Contra Costa Pinehurst Road above Moraga Road 156 Comment
  UC1618312  Lupinus latifolius var. latifolius Barbara Ertter with Laura Fujii 1990-7-21 9402 Contra Costa W of Pleasant Hill (Homestead Valley trail, at Bear Creek crossing; Briones Hills); Briones Regional Park 274 Comment
  UCR12299  Lupinus microcarpus Robin Maetche, Geoffrey Matthews 1971-7-4 s.n. Contra Costa 1 mi below North [Gate Road] entrance to Mt. Diablo State Park, Concord 427 Comment
  UC201014  Lupinus microcarpus var. densiflorus Katharine Brandegee 1918-6-16 Contra Costa near Virgorit Powder Works; near Vigorit Powder Works Comment
  UC201016  Lupinus microcarpus var. densiflorus Katharine Brandegee 1918-6-16 Contra Costa near Virgorit Powder Works; near Vigorit Powder Works Comment
  UC692275  Lupinus microcarpus var. densiflorus Mary L. Bowerman 1931-4-18 735 Contra Costa Green Valley Mount Diablo (Mount Diablo); , Green Valley Comment
  UC697194  Lupinus microcarpus var. densiflorus Mary L. Bowerman 1930-6-28 385 Contra Costa road above junction Mount Diablo (Mount Diablo) Comment
  UC33552  Lupinus microcarpus var. microcarpus Chesnut and Drew 1889-4-17 Contra Costa Clayton Comment
  UCD108866  Lupinus microcarpus var. microcarpus P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  SD103751  Lupinus microcarpus var. microcarpus Walter Knight, Irja Knight 1979-5-6 3395 Contra Costa Orinda, Camino del Diablo Comment
  UC126998  Lupinus nanus J. Burtt Davy 1897-4-17 Contra Costa Point Isabel Comment
  UCD109081  Lupinus nanus P. B. Kennedy 1916-5-11 31 Contra Costa Grand View Terrace; Richmond District. Comment
  RSA0027718  Lupinus nanus Barbara Ertter, R. K. Brummitt 1998-5-13 16132 Contra Costa Summit Road on Mount Diablo, base of rock outcrop/roadcut above Juniper Camp. 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
  UC15974  Lupinus pachylobus W. H. Brewer 1862-5-12 1074 Contra Costa Monte Diablo Comment
  UC2031457  Lupinus pachylobus Barbara Ertter with David Gowen 2014-4-9 21709 Contra Costa Ridge running SE from Devil's Elbow on south side of Mount Diablo summit Comment
  UCD109334  Lupinus pachylobus A. A. Heller 1913-12-9 11150 Contra Costa hills eight miles north of Oroville near the western base of Table mountain. The type was collected by Greene on the 'Briones Hills, east of San Pablo Creek, Contra Costa County, California. Comment
  RSA121635  Lupinus subvexus var. subvexus C. M. Belshaw 1936-5-11 2098 Contra Costa 5 1/3 miles east of Danville. 290 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
  RSA0014823  Lythrum californicum David Gowen 2006-8-9 660 Contra Costa Mount Diablo State Park at Lower Moses Rock Spring. Comment
  JEPS100062  Lythrum hyssopifolia A. Langston 2003-7-9 AL 65 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS112515  Lythrum hyssopifolia D. G. Kelch 2004-7-9 04 .302 Contra Costa McEwen Road. McEwen marsh. North of Cummings Skyway 130 Comment
  JEPS112520  Lythrum hyssopifolia D. G. Kelch 2003-6-22 03 .90 Contra Costa Rodeo - Lone Tree Point 2 Comment
  JEPS45963  Lythrum hyssopifolia W. L. Jepson 1922-7-9 9734 Contra Costa Richmond 6 Comment
  UC692629  Lythrum hyssopifolia Mary L. Bowerman 1932-8-27 1522 Contra Costa s of Turtle Rock (w of the willows, Mount Diablo); Mount Diablo Comment
  JEPS99516  Madia elegans subsp. densifolia Mary Bowerman 1978-7-9 Contra Costa Mount Diablo, Russelman Park Comment
  UC1819036  Madia exigua Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14246 Contra Costa South side Mount Diablo, Sloan Road between Curry Point and Curry Canyon, roadside in partial shade of oak forest on north-facing slope. 487 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
  CDA8360  Madia gracilis D. G. Kelch, A. G. Murdock 2004-4-25 4 .119 Contra Costa Carquinez Strait; W of Martinez along Carquinez Scenic Dr. Comment
  JEPS40425  Madia gracilis W. L. Jepson 1896-5-31 Contra Costa near Berkeley (trip to Wildcat Creek) Comment
  OBI23153  Madia gracilis Joseph Andorfer Ewan 1934-5-20 8931 Contra Costa Russelmann Park N slope of Mt Diablo Comment
  OBI49199  Madia gracilis Joseph Andorfer Ewan 1934-5-20 8931 Contra Costa Russelmann Park N slope of Mt Diablo Comment
  CAS-BOT-BC343586  Madia sativa L. R. Abrams 1916-7-1 5734 Contra Costa Martinez Comment
  JEPS111681  Madia sativa D. G. Kelch 2003-8-13 03 .136 Contra Costa Pinole Creek 68 Comment
  POM53854  Madia sativa L. R. Abrams 1916-7-1 5734 Contra Costa Martinez Comment
  UC33195  Madia sativa Jos. Burtt Davy 1895-1 Contra Costa Moraga Pass Comment
  CAS-BOT-BC343579  Madia sativa David D. Keck 1941-6-5 5310 Contra Costa Berkeley Hills, Fish Creek Road, 1/4 mi. W. of East portal of Broadway Tunnel 335 Comment
  UCD134341  Madia sativa G. Thomas Robbins; S. Galen Smith 1958-6-2 3848 B Contra Costa Along Franklin Canyon Road (State Highway 4) south and above Refugio Valley just east of Hercules city boundary. 18 Comment
  RSA577468  Maianthemum racemosum subsp. amplexicaule Joseph A. Ewan 1934-6-8 8755 Contra Costa South Fork Marsh Creek, Mt. Diablo 305 Comment
  UC2028109  Malacothamnus fasciculatus Barbara Ertter with Christopher Baysdorfer 1998-5-10 16114 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, on north end of Ohlone Trail. Comment
  UC1042342  Malacothamnus fremontii Lewis S. Rose 1954-6-29 54081 Contra Costa Nortonville Comment
  UC692676  Malacothamnus hallii Mary L. Bowerman 1933-6-3 2223 Contra Costa 2 mi by road from North Gate; Mount Diablo Comment
  CAS-BOT-BC204092  Malacothamnus hallii Walter Knight; Irja Knight; Mary L. Bowerman 1969-6-4 2620 Contra Costa North Road, Mt. Diablo. East side of road 259 Comment
  CAS-BOT-BC204093  Malacothamnus hallii Mary L. Bowerman 1938-11-12 3732 Contra Costa Mount Diablo. Lime Ridge, on crest of ridge south of 1004 289 Comment
  CAS-BOT-BC204094  Malacothamnus hallii John Thomas Howell; T. H. Kearney 1950-7-5 26634 Contra Costa On North Road, Mt. Diablo 259 Comment
  CAS-BOT-BC345370  Malacothrix clevelandii Brandegee No date on label s.n. Contra Costa Antioch Comment
  UCD134393  Malacothrix floccifera P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  CHSC33984  Malva nicaeensis Willis Ball 1975-4-19 525 Contra Costa Contra Loma Regional Park. In area #1 ca. 40 yds sw of restroom facility at s end of reservoir. In picnic area. 36 Comment
  JEPS111542  Malva pseudolavatera D. G. Kelch 2003-3-28 03 .83 Contra Costa Rodeo - Lone Tree Point 2 Comment
  RSA0004204  Malvastrum hallii H. M. Hall, F. M. Essig 1916-5-30 10131 Contra Costa Mt. Diablo, westerly side north of Pine Canon. 275 Comment
  UC2028362  Malvella leprosa Barbara Ertter with Tony Morosco 1998-7-11 16363 Contra Costa North base of Mount Diablo, near small pond on north side of Bruce Lee Road east of Mitchell Canyon staging area Comment
  CDA42228  Marah fabacea D. G. Kelch 2003-3-21 3 .04 Contra Costa Carquinez Strait Region; Martinez; West: Ozol Rock and Scenic Drive. Comment
  UC691462  Marrubium vulgare Mary L. Bowerman 1930-6-26 376 Contra Costa junction of Riggs Canyon Rd and Livermore Rd Mount Diablo Comment
  CHSC116621  Matricaria discoidea Lowell Ahart; Josephine Guardino 2016-4-19 20766 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
  UC1543100  Matricaria discoidea Donald G. Nelson 1937-3-30 480 Contra Costa s of Byron (along railroad tracks paralleling the highway on road to Tracy) Comment
  CAS-BOT-BC348046  Matricaria discoidea R. E. Frenkel 1963-12-4 305 Contra Costa In walnut orchard on Marsh Creek Road, west of Sellers Road Comment
  CAS-BOT-BC348258  Matricaria occidentalis R. E. Frenkel 1963-5-15 202 Contra Costa East of Bixler Road between Marsh Creek Road and Point of Timber Road, about 200 yards north of pink house on west side of road, about 10-20 m. east of fence 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
  UC2036958 Image available Meconella californica Mary L. Bowerman 1946-3-10 4084 Contra Costa Northerly face of Shell Ridge. East of Brown's house (where [m.c.?] lived). 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
  JEPS75470  Medicago polymorpha P. F. Yorks 1975-5-15 395 -2 Contra Costa on Hampton Rd ca 1.5 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Preserve Comment
  UC1197429  Medicago polymorpha Joseph P. Tracy 1934-4-30 13190 Contra Costa between Lafayette and Moraga 152 Comment
  OBI59999  Medicago polymorpha Joseph Andorfer Ewan 1936-5-3 9505 Contra Costa Wildcat Crk Comment
  POM11730  Medicago polymorpha Katherine Brandegee s.n. Contra Costa Byron Hot Springs. Comment
  JEPS127043  Medicago polymorpha var. brevispina Lowell Ahart, Josephine Guardino 2016-4-19 20763 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
  JEPS99555  Melica californica Mary Bowerman 1991-5-21 Contra Costa Mount Diablo, Jim White Trail [Deer Flat Rd.]. South side of Juniper-Moses Rock Trail near Deer Flat junction. Comment
  UC1055813  Melica californica Frank W. Gould 1941-4-20 1282 Contra Costa near Richmond Comment
  UCD87144  Melica californica P. B. Kennedy 1916-5-1 s.n. Contra Costa Pinehurst. Comment
  UCD87188  Melica californica G. Thomas Robbins 1959-4-18 3994 Contra Costa At the western base of Potrero Hills, near and north of Pt. Richmond. Along Western Drive, Richmond. 7 Comment
  POM300621  Melica imperfecta Mary L. Bowerman 1935-5-3 2956 Contra Costa Fossil Ridge: Hillside below the Jungle of the Garden Gods. Mount Diablo. 457 Comment
  UC1153843  Melica imperfecta Beecher Crampton 1956-5-14 3405 Contra Costa s boundary Mt. Diablo State Park Comment
  CDA9434  Melica imperfecta D. G. Kelch 2002-5-2 s.n. Contra Costa Altamont Hills; Corral Hollow Rd. 0 Comment
  SEINET10926310  Melica imperfecta var. flexuosa Virginia E. Long 1933-6-14 Long 221 a Contra Costa Mt. Diablo. On slope S.E.-E. along first west fork from Curry Creek trail. 335 Comment
  CAS-BOT-BC262506  Melica torreyana John Thomas Howell 1933-5-14 11257 Contra Costa Hills east of St. Mary's College Comment
  UC53661  Melica torreyana J. Burtt Davy Apr 1897 Contra Costa Point Isabel Comment
  JEPS128777  Melilotus albus Kevin Hintsa 1999-8-17 Contra Costa Mount Diablo State Park, Pine Canyon in flats adjacent to willow forest. Comment
  JEPS65535  Melilotus indicus W. L. Jepson 1922-5-18 9644 Contra Costa North Berkeley Hills 152 Comment
  UC634868  Melissa officinalis H. L. Mason 1925-9-17 2235 Contra Costa stream in Redwood Canyon Redwood Canyon Comment
  JEPS112484  Mentha spicata var. spicata D. G. Kelch 2004-4-30 04 .159 Contra Costa Alhambra Valley Along Alhambra Valley Road 120 Comment
  UC108375  Mentzelia affinis Michener and Bioletti 1892-4-10 Contra Costa Byron Comment
  POM89173  Mentzelia affinis Katherine Brandegee s.n. Contra Costa Byron Hot Springs. Comment
  UCD117222  Mentzelia dispersa P. B. Kennedy 1916-5-21 s.n. Contra Costa between Diablo and summit. Comment
  UC19612  Mentzelia micrantha Edw. L. Greene 1892-6-24 Contra Costa Mt. Diaiblo Comment
  UC692628  Mentzelia micrantha Mary L. Bowerman 1933-5-25 2186 Contra Costa west end of south face (Gully); Mount Diablo, Oyster Ridge 502 Comment
  POM300650  Mentzelia micrantha Mary L. Bowerman 1933-5-2 1952 Contra Costa Below Pioneer Camp and slightly east: Chaparral-burn, south face. 762 Comment
  CDA387  Mesembryanthemum nodiflorum D. G. Kelch, Michael Park 2008-9-1 8 .291 Contra Costa Carquinez Strait; 200 m W of Pacheco Slough, E of Martinez. Comment
  SBBG2832  Micranthes californica J. M. Tucker 1946-3-24 1389 Contra Costa hills between Nortonville and Somersville Comment
  JEPS111703  Micropus californicus var. californicus D. G. Kelch 2004-4-30 04 .155 Contra Costa Mt. Wanda - Martinez 90 Comment
  JEPS40628  Micropus californicus var. californicus W. L. Jepson 1923-4-22 9878 Contra Costa Mt. Diablo Comment
  UC34598  Micropus californicus var. californicus J. P. Tracy 1900-3-24 618 B Contra Costa Point Richmond San Francisco Bay Region 15 Comment
  CAS-BOT-BC348364  Micropus californicus var. californicus Paul F. Covel 1939-5-1 s.n. Contra Costa Somersville, east of Clayton Comment
  UCD134487  Micropus californicus var. californicus P. B. Kennedy 1925-4-26 s.n. Contra Costa Mt. Diablo. Below old road. Comment
  UCD134536  Microseris douglasii P. B. Kennedy 1925-4-26 s.n. Contra Costa Mt. Diablo. Comment
  UCD77859  Microseris douglasii Robert E. Preston 1997-3-8 1018 Contra Costa Black Diamond Mines Regional Park, along Stewartsville Trail. 91 Comment
  UC2028327  Microseris douglasii Barbara Ertter with Richard K. Brummitt 1998-5-13 16138 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, head of SE branch of Loughler Loop Trail. Comment
  RSA72855B  Microseris douglasii subsp. douglasii A. Kellogg, W. G. W. Harford 1869-4-8 579 Contra Costa Antiock [Antioch] Comment
  UC691463  Microseris douglasii subsp. douglasii Mary L. Bowerman 1931-4-11 698 Contra Costa toward mouth of Pine Canyon; Mount Diablo Comment
  UC71937  Microseris douglasii subsp. douglasii J. Burtt Davy 1895-4-7 966 Contra Costa Antioch Comment
  CAS-BOT-BC348888  Microseris douglasii subsp. douglasii Ira L. Wiggins 1930-4-17 4560 Contra Costa 1 mi. E. of Mountain House, on road to Byron Comment
  UC70182  Microseris douglasii subsp. tenella J. Burtt Davy May 1898 Contra Costa Danville Mount Diablo Region Comment
  POM53410  Microseris elegans C. F. Baker 1903-4-28 2830 Contra Costa Marsh Creek, Mt. Diablo. Comment
  CAS-BOT-BC322765  Microseris sylvatica M. K. Curran 1884-5-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC322770  Microseris sylvatica T. S. Brandegee 1884-5-1 s.n. Contra Costa Antioch Comment
  UC76079  Mimulus aurantiacus var. aurantiacus Miss Carlotta Case July, 1904 Contra Costa Muir Station Comment
  UCSB25546  Mimulus aurantiacus var. grandiflorus McMinn, H. 1945-4-1 Contra Costa Cultivated at Edmund's place, Danville Comment
  UC27116  Mimulus douglasii H. M. Hall 1901-3-8 1632 Contra Costa Bollinger Creek San Francisco Bay Region Comment
  UC691504  Mimulus grandis Mary L. Bowerman 1933-5-2 1964 Contra Costa below and w Pioneer Camp; Mount Diablo Comment
  UC125132  Mimulus latidens Katharine Brandegee 1907-5-5 Contra Costa between Antioch and Marsh Creek Comment
  UC886254  Mimulus latidens Lewis S. Rose 1940-4-11 40184 Contra Costa 3 mi w Byron 30 Comment
  UC691909  Mimulus nasutus Mary L. Bowerman 1933-5-9 2056 Contra Costa e Pine Saddle; Mount Diablo, Curry Creek tributary Comment
  UC692296  Minuartia douglasii Mary L. Bowerman 1935-4-22 2889 Contra Costa ridge w Pioneer Road (west of Old Stage Road); Mount Diablo Comment
  UC1818898  Minuartia pusilla Barbara Ertter, Mary Bowerman et al. 1995-5-7 14064 Contra Costa Three-Springs Trail on NE side of Mount Diablo SE of Clayton, small serpentine patch at road junction Comment
  RSA0033764  Mollugo verticillata Barbara Ertter 2005-8-18 18635 Contra Costa SE side of San Pablo Reservoir in East Bay Hills, east of San Pablo Dam Road between San Pablo and Orinda, access between HQ and boat launching (reservoir way down this year while being drained for seismic work on dam). Comment
  UC2028337  Mollugo verticillata Barbara Ertter 2005-8-18 18635 Contra Costa Mudflats on SE side of San Pablo Reservoir in East Bay Hills, east of San Pablo Dam Road between San Pablo and Orinda, access between HQ and boat launching area [reservoir way down this year while being drained for seismic work on dam], with extensive Artemisia biennis. Comment
  UC691414  Monardella douglasii Mary L. Bowerman 1935-6-1 3106 Contra Costa second small ridge e Mitchell-Pine divide (bottom of s face); Mount Diablo 975 Comment
  UCD125303  Monardella villosa P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  JEPS75499  Monardella villosa subsp. villosa P. F. Yorks 1974-6-16 180 Contra Costa ca. 1.6 km south of Bear Creek Road (on Hampton Road, north of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  UC691416  Monardella villosa subsp. villosa Mary L. Bowerman 1938-6-21 3689 Contra Costa summit Mount Diablo Comment
  SEINET892705  Monardella villosa subsp. villosa Alice Eastwood 1915-1 4743 Contra Costa San Leandro, Contra Costa County. Comment
  UC2027734  Monardella villosa subsp. villosa Barbara Ertter 1997-2-16 15459 Contra Costa Shell Ridge Open Space on west flank of Mount Diablo, exposed sandstone on main ridgeline. Comment
  UC697150  Monolopia gracilens Mary L. Bowerman 1933-5-9 2057 Contra Costa Muir area Mount Diablo (sw slope e of the rocks) Comment
  JEPS34922  Monolopia major R. F. Hoover 1938-3-25 2899 Contra Costa Lone Tree Valley Comment
  CAS-BOT-BC349615  Monolopia major Dr. A. Kellogg; W. G. W. Harford 1969-4-8 508 Contra Costa Antioch Comment
  JEPS68945  Montia fontana Edward Lee 1935-2-10 1273 Contra Costa Wildcat Creek Berkeley, Berkeley Hills Comment
  UC3794  Muilla maritima Harley P. Chandler 1901-3-21 863 Contra Costa Concord Region of San Francisco Bay Comment
  CAS-BOT-BC83287  Myosurus minimus Herbert L. Mason 1952-4-14 14263 Contra Costa 3.5 miles south of Byron. Comment
  CAS-BOT-BC83294  Myosurus minimus Peter H. Raven; D. Stone; H. L. Mason; R. Ornduff; et al. 1957-4-4 10582 Contra Costa 3.0 miles south of Byron. Comment
  CAS-BOT-BC83295  Myosurus minimus Peter H. Raven; D. Stone; H. L. Mason; R. Ornduff; et al. 1957-4-4 10584 Contra Costa 3.0 miles south of Byron. Comment
  UC1101327  Myosurus minimus Herbert L. Mason 1952-4-14 14262 a Contra Costa 3.5 mi s of Byron Comment
  UC1738084  Myosurus minimus H. L. Mason 1957-3-15 14268 B-4 Contra Costa 3 mi S of Byron ( on road to Herdlyn) Comment
  UC1738085  Myosurus minimus H. L. Mason 1957-3-22 14268 B-6 Contra Costa 3 mi S of Byron ( on road to Herdlyn) Comment
  UC1738087  Myosurus minimus H. L. Mason 1956-5-24 14268 B-1 Contra Costa 3 mi S of Byron ( on the road to Herdlyn) Comment
  CAS-BOT-BC83300  Myosurus minimus Ira L. Wiggins 1930-4-17 4580 Contra Costa 0.25 mile south of Byron. Comment
  POM181444  Myosurus minimus I. L. Wiggins 1930-4-7 4580 Contra Costa 1/4 mile S of Byron Comment
  UC2028254  Narcissus Barbara Ertter with Gary Schoolcraft 1996-4-7 14581 Contra Costa Molate Beach Park on San Francisco Bay north of San Rafael Bridge, coastal prairie and brushland on bluff Comment
  CDA29014  Nassella lepida D. G. Kelch 2006-5-7 6 .163 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  RSA217245  Nassella lepida D. E. Breedlove 1970-4-18 17437 Contra Costa At the north edge of Lafayette above Laurel Drive 244 Comment
  UCD87883  Nassella lepida P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and summit. Comment
  CAS-BOT-BC259901  Nassella lepida Mary L. Bowerman 1935-6-8 3125 Contra Costa Mount Diablo. West road 2 miles from entrance, gully W of chapparal Comment
  CAS-BOT-BC260127  Nassella pulchra A. A. Beetle 1941-3-28 1718 Contra Costa Orinda Comment
  JEPS73768  Nassella pulchra R. F. Hoover 1936-3-19 807 Contra Costa Byron Hot Springs Comment
  SBBG730  Nassella pulchra A. A. Beetle 1941-3-28 1718 Contra Costa Orinda Comment
  UCD87459  Nassella pulchra Beecher Crampton 1955-4-11 2472 Contra Costa city of Richmond, East Shore and San Pablo Avenues. Comment
  UCD87635  Nassella pulchra P. B. Kennedy 1914-3-15 4610 Contra Costa Sunset Cemetery. Comment
  CAS-BOT-BC60355  Nasturtium officinale D. E. Breedlove 1969-10-18 16722 Contra Costa Along Alhambra Valley Road near junction with Bear Creek Road, southeast of Pinole. Comment
  UC335966  Navarretia cotulifolia J. G. Lemmon Contra Costa Mount Diablo Comment
  JEPS103663  Navarretia hamata subsp. parviloba David Gowen 2003-6-14 Contra Costa Lime Ridge Open Space, on fire road below transmission tower 274 Comment
  UC52780  Navarretia mellita J. Burtt Davy 1895-1 Contra Costa Moraga Pass Oakland Hills, Moraga Pass Comment
  UC691607  Navarretia mellita Mary L. Bowerman 1931-5-31 907 Contra Costa n slope of 1778 point Mount Diablo, Fossil Ridge (Rock City Ridge) Comment
  RSA469883  Navarretia pubescens Thekla Mohr 1917-07 3155 Contra Costa Mount Diablo Comment
  JEPS105727  Navarretia pubescens David Gowen 2004-5-27 100 Contra Costa Ca. 1/2 mile east of the southeast corner of Morgan Territory Regional Preserve in Los Vaqueros Watershed. Comment
  UCD36024  Navarretia squarrosa Beecher Crampton 1949-6-5 469 Contra Costa Contra Cost County, along Highway 40, Pinole to San Pablo, above Garrity Creek, on top of West Hills. 30 Comment
  UC23887  Navarretia viscidula Edw. L. Greene 1892-6-19 Contra Costa Walnut Creek Comment
  JEPS100041  Nemophila heterophylla G. Smick 2003-2-27 GAS 54 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS3210  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
  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
  UC517550  Nemophila heterophylla John Thomas Howell 1926-3-7 1659 Contra Costa Mt. Diablo near toll gate Mt. Diablo Comment
  UC592125  Nemophila heterophylla H. L. Mason 1929-3-29 5125 Contra Costa Mount Diablo 762 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
  UC67125  Nemophila heterophylla Harley P. Chandler 1901-4-5 948 Contra Costa Pine Canyon , Pine Canyon (Mt. Diablo) Comment
  RSA75801  Nemophila heterophylla Lincoln Constance 1938-3-22 2031 Contra Costa Edge of Wildcat Canyon on north slope of the Berkeley Hills. 366 Comment
  CDA5536  Nerium oleander T. C. Fuller 1971-9-15 19928 Contra Costa Carquinez Strait; Old Highway 4, Alhambra Valley, ca. 4 miles west of Martinez. 0 Comment
  UC1125161  Nicotiana glauca G. T. Nordstrom 1937-10-28 1402 Contra Costa 1.4 mi n Somersville; Mt. Diablo Quad. 91 Comment
  UC2028006  Nicotiana glauca Barbara Ertter with Amy Rusev 1998-1-17 15899 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
  UC691506  Nicotiana quadrivalvis Mary L. Bowerman 1936-6-20 3416 Contra Costa ridge w Mount Zion (w side of ridge, road bending up canyon to south); Mount Diablo 213 Comment
  CDA5796  Nicotiana tabacum R. DeBoer 1966-12-2 Contra Costa Golden Gate Fish Co., Point San Pablo, Richmond. 0 Comment
  UC1084399  Nuttallanthus texanus G. Thomas Robbins 1937-4-17 132 Contra Costa near Point Richmond Comment
  UC691645  Nuttallanthus texanus Mary L. Bowerman 1932-4-16 1340 a Contra Costa Eagle Point ridge just s of Twin Peaks (Mount Diablo); , Eagle Point Comment
  JEPS99491  Nuttallanthus texanus Mary Bowerman 1995-5-28 Contra Costa Mount Diablo, Knoll 1000' N of Wall Pt. Trail. Trail to Pine Pond from Wall Pt. fire road half encircles it on W side. Comment
  JEPS112074  Oemleria cerasiformis D. G. Kelch 2003-2-7 03 .35 Contra Costa Sky Ranch. Dutra Road path ~700-1000 ft. 250 Comment
  JEPS44838  Oemleria cerasiformis H. H. Haworth 1917-4-22 Contra Costa Orinda Park Comment
  JEPS75476  Oemleria cerasiformis P. F. Yorks 1974-2-24 111 Contra Costa ca 1.4 km s Bear Creek Rd on Hampton Rd in Hampton Road Natural Reserve (n of Briones Reservoir) Comment
  UC691107  Oemleria cerasiformis Mary L. Bowerman 1933-5-17 2114 Contra Costa Mount Diablo; branch of Curry due s of Olafsons barn, crest of ridge between two forks, epecially on e side Comment
  POM355601  Oenothera deltoides subsp. cognata H. de Forest 1930-4-6 s.n. Contra Costa Near mouth of San Joaquin River Comment
  CAS-BOT-BC171591  Oenothera deltoides subsp. howellii P. A. Munz 1949-6-1 14436 Contra Costa Sand dunes east of Antioch. Comment
  JEPS716  Oenothera deltoides subsp. howellii W. L. Jepson 1945-10-28 27570 Contra Costa Antioch Sand Hills Comment
  POM32717  Oenothera deltoides subsp. howellii C. F. Baker 1903-4-25 2873 Contra Costa Antioch. Comment
  UC1241161  Oenothera deltoides subsp. howellii Wm. Klein 1958-6-9 442 Contra Costa sandhills just n Antioch (along the channel) Comment
  RSA119394  Oenothera deltoides subsp. howellii William M. Klein 1958-6-9 440 Contra Costa Sandhills N of Antoch, along the San Joaquin River Channel. 2 Comment
  UC1584816  Oenothera elata subsp. hookeri Jerry Powell 1990-8-29 1590 Contra Costa Antioch National Wildlife Refuge Comment
  UC2028243  Olea europaea Barbara Ertter, Tony Morosco 1998-9-18 16419 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, western quarry area. Comment
  CAS-BOT-BC502761  Orobanche bulbosa A. D. E. Elmer 1903-6-1 5097 Contra Costa Mount Diablo Comment
  UC35324  Orobanche fasciculata F. T. Bioletti 1894-5-13 Contra Costa Mount Diablo. Comment
  UC691744  Orobanche fasciculata Mary L. Bowerman 1935-5-22 3056 Contra Costa Saddle west of Twin Peaks Comment
  RSA407982  Orthocarpus purpurascens M. B. Dunkle 1935-4-14 4450 Contra Costa Sycamore Valley. Intermountain. 335 Comment
  RSA720798  Osmorhiza berteroi Mary L. Bowerman 1975-6-7 s.n. Contra Costa Mount Diablo, Big Spring Comment
  UC2029047  Oxalis pes-caprae Barbara Ertter with Linda Vorobik 2000-1-9 16891 Contra Costa Las Trampas Regional Wilderness in East Bay Hills west of Danville, edge of woodland behind Eugene O'Neill house. Comment
  UC2028103  Packera breweri Barbara Ertter with Christopher Baysdorfer 1998-5-10 16124 Contra Costa West side Lime Ridge Open Space northwest of Mount Diablo. Comment
  RSA125862  Paeonia californica G. R. Campbell 1956-4-6 15 Contra Costa Between Round Top and summit of Mt. Diablo. 305 Comment
  UC1051229  Pandorea jasminoides N. Floy Bracelin 1942-9-20 2301 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  RSA0029056  Panicum capillare Barbara Ertter, Mary L. Bowerman, Lisa Schultheis 1998-8-21 16396 Contra Costa South side of Mount Diablo, South Gate Road 1.1 mi below entry kiosk. 366 Comment
  SJSU6411  Papaver heterophyllum G. C. Dudley 1966-5-1 112 Contra Costa Reliez Valley, Briones Hills, N of Lafayette Comment
  CAS-BOT-BC253921  Parapholis incurva Alice Eastwood 1927-5-19 14436 Contra Costa Byron Springs 760 Comment
  JEPS111919  Parietaria judaica Dean G. Kelch and Andrew G. Murdock 2004-4-11 DGK 04 .078 Contra Costa Crockett - Crolona Heights. 6th Street at Lillian Street. Comment
  UC1818967  Paspalum dilatatum Barbara Ertter 1995-9-30 14523 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
  RSA0026146  Paspalum dilatatum Barbara Ertter 1998-6-20 16241 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Bob Pond at Old Borges Ranch. Comment
  RSA118092  Paspalum dilatatum J. T. Howell 1954-9-5 30025 Contra Costa Along road, Marsh Creek Springs Park Comment
  SEINET12728273  Pectocarya linearis T. S. Brandegee 1890-1 s.n. Contra Costa Antioch California. Comment
  UC691634  Pectocarya pusilla Mary L. Bowerman 1933-5-8 2019 Contra Costa near crest Rock City Ridge (n side by rd to camp ground); Fossil Ridge Comment
  JEPS10358  Pedicularis densiflora W. L. Jepson 1923-2-18 9845 Contra Costa Las Trampas Ridge Comment
  UC16282  Pediomelum californicum F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  JEPS112054  Pellaea andromedifolia A. G. Murdock 2003-2-21 68 Contra Costa Mt. Wanda - Martinez Chaparral, west border of Mt. Wanda property. 120 Comment
  RSA686984  Pellaea mucronata Mark Morris 1929-03 14909 Contra Costa Mount Diablo, Contra Costa Comment
  UC399537  Pellaea mucronata var. mucronata Michener May, 1894 Contra Costa Mt Diablo Comment
  NY583859  Penstemon centranthifolius A. A. Heller 1908-4-16 8895 Contra Costa East of Antioch 22.9 Comment
  UC2028335  Penstemon centranthifolius Barbara Ertter 1991-5-5 9775 Contra Costa Black Diamond Mines Regional Preserve S of Pittsburg, S side of Rose Hill above Nortonville Pass Comment
  UCR136718  Penstemon centranthifolius L. S. Rose 1936-4-24 36158 Contra Costa 3 mi east of Antioch 15 Comment
  SEINET12320780  Penstemon centranthifolius Unknown 1980-1 3879 Contra Costa Lime Ridge, N end, S of Ygnacio Valley Rd between Walnut Creek & Concord Comment
  SEINET12320781  Penstemon centranthifolius N. Havlik, Knight, W.; Knight, I. 1980-1 3878 Contra Costa about 1500 ft from Nortonville Pass intersection enroute to Laugher homestead, near old mining town Comment
  UC2028055  Penstemon centranthifolius Barbara Ertter with Amy Rusev 1998-1-17 15896 Contra Costa Lime Ridge Open Space at NW foot of Mount Diablo. Comment
  POM14652  Penstemon heterophyllus subsp. purdyi C. F. Baker 1903-4-28 2872 Contra Costa Marsh Creek, Mt. Diablo. Comment
  UC691510  Penstemon heterophyllus var. heterophyllus Mary L. Bowerman 1935-6-15 3132 Contra Costa Flat (first bottom) where stream forks Mount Diablo, Mitchell Creek, Flat (first bottom) (Mitchell Creek, Mount Diablo) 640 Comment
  UCD124286  Penstemon laetus Terri Williamson 1990-6-2 88 Contra Costa 212 Poshard Street, Pleasant Hill. (Original collected in Tehachapi Mountains, Hwy/. 58 Kern County). 274 Comment
  UC1795765  Pentachaeta alsinoides Barbara Ertter, Lisa Schultheis 1995-4-27 14006 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; northwest side of open grassy ridge at end of Arbolado Dr. 121 Comment
  POM301041  Pentachaeta exilis Mary L. Bowerman 1935-5-8 2981 Contra Costa First main ridge east of Pioneer Camp. 762 Comment
  UC1584690  Perideridia kelloggii Jerry Powell 1987-7-14 1507 Contra Costa Point Molate Beach Comment
  CAS-BOT-BC413495  Persicaria amphibia Mary L. Bowerman 1935-7-22 3185 Contra Costa Mount Diablo. Hidden Pond 518 Comment
  CAS-BOT-BC418832  Persicaria hydropiperoides Brian Atwater 1978-10-24 BA- 165 Contra Costa Between Bethel Island and Holland Tract Comment
  CDA9188  Petrorhagia dubia Christopher Thayer 1995-6-5 s.n. Contra Costa Carquinez Strait; W of Pinole Peak. Comment
  RSA428314  Phacelia Alice Eastwood 1931-5-30 18617 Contra Costa Oak Spring Comment
  JEPS1458  Phacelia breweri Mary L. Bowerman 1935-4-26 2898 Contra Costa w Indian Ceremonial Spring; Mount Diablo 1021 Comment
  JEPS1459  Phacelia breweri W. L. Jepson 1922-5-23 9656 Contra Costa near summit; Mount Diablo Comment
  POM59588  Phacelia breweri Verne Grant, Alva Grant 1950-5-13 8899 Contra Costa South slope of Meridian Peak at junction of road and North Peak Trail, Mt. Diablo. Comment
  UC107330  Phacelia breweri Katharine Curran May 1883 Contra Costa Mt. Diablo Comment
  UC24303  Phacelia breweri W. H. Brewer 1058 Contra Costa Mount Diablo; ; Mt. Diablo Comment
  UCD102378  Phacelia breweri Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 1070 Comment
  JEPS2229  Phacelia californica R. F. Hoover 1938-2-21 2753 Contra Costa Point Richmond Comment
  UC901820  Phacelia californica Beecher Crampton 1950-4-22 533 Contra Costa along state hwy 4 in pass between Concord Valley and Pittsburg Comment
  SEINET3158089  Phacelia ciliata L. S. Rose 1937-3-26 37013 Contra Costa Brentwood 6 Comment
  UC107374  Phacelia distans T. S. Brandegee May 1889 Contra Costa Antioch Comment
  UC107401  Phacelia distans T. S. Brandegee May 1889 Contra Costa Antioch Comment
  UC1084393  Phacelia distans G. Thomas Robbins 1937-4-25 143 Contra Costa along roadside to summit of Mt. Diablo Comment
  UCD102384  Phacelia distans Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 960 Comment
  UC672425  Phacelia distans Herbert L. Mason 1929-3-15 5053 Contra Costa canyon back of Nortonville Comment
  UC24351  Phacelia divaricata Harley P. Chandler 1901-4-5 968 Contra Costa Mt. Diablo Comment
  UC35545  Phacelia divaricata F. P. McLean 1800-1 Contra Costa Mt. Diablo Comment
  UC691703  Phacelia divaricata Mary L. Bowerman 1935-4-26 2897 Contra Costa w Indian Ceremonial Spring (hillside); Mount Diablo 1021 Comment
  UC2028997  Phacelia divaricata Barbara Ertter 2000-3-30 16914 Contra Costa North side of Mount Diablo, grassy S-facing hillside between Deer Flat Creek and Bald Ridge, off-trail east of Meridian Ridge Road. Comment
  RSA276849  Phacelia douglasii James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  UC735091  Phacelia imbricata subsp. imbricata Lincoln Constance, T. Morley, R. H. Shan, and W. H. Wagner 1946-4-26 3035 Contra Costa below Devil's Pulpit; Mount Diablo, Devil's Elbow 1127 Comment
  UCSC000586  Phacelia magellanica R. F. Hoover 1938-3-8 2821 Contra Costa Berkeley Country Club Comment
  CAS-BOT-BC154332  Phacelia phacelioides Alice Eastwood 1915-5-30 4520 Contra Costa Near type locality. Mt. Diablo Comment
  CAS-BOT-BC154333  Phacelia phacelioides John Thomas Howell 1978-5-4 52870 Contra Costa Burned area in chaparral near summit, Mt. Diablo 1066 Comment
  JEPS1103  Phacelia phacelioides Mary L. Bowerman 1935-5-8 2974 Contra Costa Mount Diablo, Muir Area Mount Diablo; , Muir Area 1005 Comment
  SFV3029  Phacelia phacelioides L. Constance, C. W. Sharsmith, H. S. Reed 1940-4-27 2574 Contra Costa North Coast Ranges Mount Diablo, north of Juniper Camp. 762 Comment
  UC691328  Phacelia phacelioides Mary L. Bowerman 1933-4-26 1923 Contra Costa ese peak (s face); Mount Diablo, North Peak ridge 609 Comment
  UC691329  Phacelia phacelioides Mary L. Bowerman 1933-4-26 1923 Contra Costa ese peak (s face); Mount Diablo, North Peak ridge 609 Comment
  UC691330  Phacelia phacelioides Mary L. Bowerman 1933-5-2 1950 Contra Costa below Pioneer Camp; Mount Diablo 762 Comment
  UC691579  Phacelia phacelioides Mary L. Bowerman 1935-5-8 2974 Contra Costa Muir Area Mount Diablo 1005 Comment
  CAS-BOT-BC154334  Phacelia phacelioides Lincoln Constance; Carl W. Sharsmith; Howard S. Reed 1940-4-27 2574 Contra Costa Northy of Juniper Camp, Mount Diablo 762 Comment
  SEINET5506855  Phacelia phacelioides L. Constance, C. W. Sharsmith 1940-4-27 2574 Contra Costa Mount Diablo, north of Juniper Camp 762 Comment
  UC691702  Phacelia suaveolens Mary L. Bowerman 1933-5-11 2078 Contra Costa Inner Black Hills: West ridge with burned Pinus attenuata. Exposure south or southwest. Comment
  JEPS111840  Phacelia tanacetifolia D. G. Kelch 2004-4-3 04 .56 Contra Costa Crockett-Tormey Headlands west of I-80 and Cummings Skyway junction. 75 Comment
  UC881270  Phacelia tanacetifolia Alice Eastwood 1915-5-30 4508 Contra Costa Mt. Diablo Comment
  UC50726  Phalaris californica Jos. Burtt Davy Apr 1897 Contra Costa Point Isabel Comment
  POM181445  Phalaris lemmonii I. L. Wiggins 1930-4-7 4583 Contra Costa 1/4 mile S of Byron Comment
  JEPS41048  Phalaris minor Rimo Bacigalupi and L. R. Heckard 1965-5-11 9073 Contra Costa strand at nw Brooks Island (sw of Richmond); San Francisco Bay, strand nw of Brooks Island Comment
  UC697140  Phalaris minor Mary L. Bowerman 1934-4-21 2533 Contra Costa Muir Area Mount Diablo (on 1931 burn); , Muir Area Comment
  CAS-BOT-BC265960  Phalaris minor Mary L. Bowerman 1933-4-15 1849 Contra Costa Canyon south of Arrroyo del Cerro, Mount Diablo Comment
  CDA15237  Phalaris paradoxa G. F. Hrusa, D. Crowe 1998-5-8 14368 Contra Costa Sacramento Delta; Disturbed areas about annual grasslands on Dow Chemical property at Pittsburg. Annual, to 1.5 meters tall. Comment
  UC1132440  Phalaris paradoxa C. M. Belshaw 1936-5-13 2122 Contra Costa se Deer Valley (Plot 37); Mt. Diablo Quad. Comment
  UC1619911  Phoenix canariensis Barbara Ertter, Brad Olson 1993-10-30 12292 Contra Costa w of railroad tracks n of mouth of Pinole Creek (San Pablo Regional Shoreline); San Pablo Regional Shoreline Comment
  JEPS1830  Pholistoma auritum Mary L. Bowerman 1931-4-18 722 Contra Costa Sycamore Canyon 365 Comment
  CAS-BOT-BC222492  Pholistoma auritum var. auritum Mary L. Bowerman 1931-4-18 722 Contra Costa Mount Diablo. Sycamore Canyon 365 Comment
  CDA23776  Phoradendron macrophyllum D. G. Kelch 2007-10-6 7 .633 Contra Costa Carquinez Strait; Fernandez Ranch. Muir Land Trust Property 4.5 km W of Rodeo. Comment
  CAS-BOT-BC141122  Phoradendron serotinum subsp. macrophyllum L. R. Abrams 1916-7-29 6307 Contra Costa Walnut Creek 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
  UC6098  Phoradendron villosum W. C. Blasdale 1891-3-7 Contra Costa San Pablo Creek Comment
Read comments
May 25 2011
  UC692036  Phoradendron villosum Mary L. Bowerman 1930-6-22 358 Contra Costa on flat above Mitchell Canyon (Mount Diablo); Mount Diablo Comment
  POM300605  Phoradendron villosum Mary L. Bowerman 1932-10-22 1636 Contra Costa Road to Quicksilver Mine; Flats at base of N peak. Mt Diablo. Comment
  CAS-BOT-BC260891  Phragmites australis J. W. Congdon 1893-7-29 s.n. Contra Costa Martinez Comment
  UC1949170  Phyla nodiflora var. nodiflora Barbara Ertter 1990-9-10 9634 Contra Costa Briones Regional Park, Briones hills S of Martinez, dried margin of Maricich Lagoon at junction of Alhambra Creek Trail and Old Briones Road Comment
  UC12452  Physocarpus capitatus J. Burtt Davy 1895-4-4 1000 Contra Costa near Lafayette Comment
  CAS-BOT-BC76965  Pilularia americana Lewis S. Rose 1940-4-30 40259 Contra Costa 4 mi. S of Antioch 30 Comment
  SBBG336  Pinus attenuata J. M. Tucker 1941-9-26 411 Contra Costa summit of Moraga Ridge 500 Comment
Read comments
Sep 13 2011
  UC691929  Pinus attenuata Mary L. Bowerman 1932-3-20 1121 a Contra Costa toward top of middle ridge (in ne fork of creek); Mount Diablo, Inner Black Hills, Sycamore Creek Comment
  SEINET3871793  Pinus attenuata James K. Detling 1963-2-15 4 Contra Costa On Flicker Ridge Trail near Moraga.; 0 107 Comment
  SEINET3871797  Pinus attenuata Judy Kaufman 1963-2-15 6 Contra Costa On top slopes of Flicker Ridge.; 0 107 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
  POM287316  Pinus coulteri Lyman Benson 1935-3-16 6280 Contra Costa Mitchell Canyon near Clayton; Mt. Range: Mt. Diablo; Watershed: Walnut Creek. 244 Comment
  UC1051353  Pinus coulteri N. Floy Bracelin 1941-12-29 1835 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  UC40359  Pinus coulteri J. G. Lemmon Contra Costa Mitchell Canyon Mt. Diablo Comment
  UC691930  Pinus coulteri Mary L. Bowerman 1931-3-8 565 Contra Costa above Mitchell Rock; Mount Diablo Comment
  UC1061681  Pinus radiata N. Floy Bracelin 1941-12-29 1833 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CDA28753  Pinus sabiniana S. M. Blank 2007-4-7 Z 16 /07 Contra Costa Sacramento Valley; Mount Diablo State Park, Summit Road. Comment
  JEPS46901  Pinus sabiniana W. L. Jepson 1907-4-27 2648 a Contra Costa saddle at e head Mitchell Canyon; Mt. Diablo, Mitchell Canyon Comment
  JEPS48206  Pinus sabiniana W. L. Jepson 1931-4-5 15727 Contra Costa Nortonville Comment
  POM300617  Pinus sabiniana Mary L. Bowerman 1933-5-10 2069 Contra Costa One hundred feet below the Muir area. Comment
  UC400309  Pinus sabiniana unknown 1896-3-29 Contra Costa Mitchell Canyon Mt. Diablo Comment
  UC691928  Pinus sabiniana Mary L. Bowerman 1931-2-8 516 Contra Costa by roadside around bend from (below) Silver Spring; Mount Diablo Comment
  UC1200775  Pinus thunbergii L. R. Wright 1960-3-10 Contra Costa near Bryant Reservoir <Briones?>; Orinda Comment
  JEPS79510  Piperia elongata Edward Lee 1978-7-9 Contra Costa Pt. San Pablo Comment
  UC2028984  Piperia michaelii Barbara Ertter 2000-5-14 17011 Contra Costa Donner Canyon on north side of Mount Diablo, SW end of Falls Trail between Middle Trail and Donner Creek crossing. Comment
  CDA15838  Piptatherum miliaceum R. M. Case 1999-10-22 PDR 1206166 Contra Costa San Francisco Bay Area; near Walnut Creek. 0 Comment
  UC1789206  Pistacia atlantica Barbara Ertter with Dan Norris 2001-4-8 17603 Contra Costa Lime Ridge Open Space, main pit of west quarry area N of adjacent golf course 121 Comment
  JEPS90088  Plagiobothrys acanthocarpus Dean W. Taylor 1992-4-16 12390 Contra Costa s. Byron Hot Springs (in swale draining in e. margins of coordinates); San Joaquin Valley, Clifton Court Forebay 7 1/2 USGS map 45 Comment
  JEPS90184  Plagiobothrys acanthocarpus Dean W. Taylor 1992-4-16 12390 Contra Costa s of Byron Hot Springs (San Joaquin Valley); San Joaquin Valley 45 Comment
  UC24549  Plagiobothrys bracteatus W. H. Brewer 1862-4-30 1007 Contra Costa Camp 69 Walnut Creek Comment
  JEPS123197  Plagiobothrys bracteatus David Gowen 2009-5-12 1022 Contra Costa East of Las Trampas Ridge on Sulpher Springs Trail where it runs along the valley bottom. Comment
  POM226098  Plagiobothrys bracteatus J. T. Howell 1933-5-14 11232 Contra Costa St. Mary s College Comment
  UC101457  Plagiobothrys canescens Katharine Brandegee May 1907 Contra Costa Antioch Station S.P.R.R. 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
  JEPS116917  Plagiobothrys humistratus David Gowen, Chris Thayer 2009-4-6 983 Contra Costa Cowell Ranch west of dam. Comment
  UC78202  Plagiobothrys stipitatus Mrs. K. Brandegee May 1892 Contra Costa Brentwood Comment
  SEINET1906278  Plagiobothrys stipitatus var. micranthus Barbara Ertter, Jim Jokerst and Dave Magney 1989-1 8126 Contra Costa Alkali sink W and adjacent to Clifton Court Forebay, ca 15 air miles SW of Stockton. 0 Comment
  RSA0069382  Plagiobothrys stipitatus var. micranthus Katie Gallagher, Nick Jensen 2014-4-26 207 Contra Costa Las Trampas Regional Wilderness. 487 Comment
  UC24572  Plagiobothrys stipitatus var. stipitatus F. T. Bioletti 1892-1 Contra Costa Byron Comment
  UC726183  Plagiobothrys stipitatus var. stipitatus A. A. Heller 1942-4-12 Contra Costa 5 mi sw Antioch crossing of Brentwood and Marsh Creek Roads Comment
  SD4240  Plagiobothrys tenellus T. S. Brandegee May 1888 Contra Costa Antioch Comment
  UC1178520  Plagiobothrys tenellus Ethel Crum 1936-4-5 1742 Contra Costa two mi w Byron; South Coast Ranges 45 Comment
  UC573071  Plagiobothrys tenellus H. L. Mason 1932-3-20 6847 Contra Costa Antioch sand hills Comment
  UC78090  Plagiobothrys tenellus Katharine Curran April 1885 Contra Costa Antioch Comment
  JEPS105697  Plagiobothrys tenellus David Gowen 2004-4-13 28 Contra Costa Lime Ridge Open Space. Ridge Trail, south of its junction with Blue Oak Trail, ca. 700' elev. Comment
  JEPS111833  Plagiobothrys trachycarpus A. G. Murdock 2004-3-19 230 /231 Contra Costa Hercules - Carbon 50 Comment
  JEPS99591  Plagiobothrys trachycarpus Mary Bowerman March 1979 Contra Costa Mount Diablo, Shell Ridge, ca. 3/8 mi. southernly from 884 (ft summit). Near fire road above cattle pond [unreadable] EBRPD-Foothills Reg. Park. 213 Comment
  UC2029044  Plagiobothrys trachycarpus Barbara Ertter 2000-3-19 16893 Contra Costa southwest flank of Mount Diablo, east of Pine Ridge, below Wall Point Road Comment
  CAS-BOT-BC6475  Plantago californica M. K. Curran 1883-1-1 s.n. Contra Costa Antioch 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
  UC32534  Plantago erecta J. P. Tracy 1900-3-24 619 Contra Costa Point Richmond San Francisco Bay Region 15 Comment
  CDA34274  Plantago lanceolata D. G. Kelch 2009-8-9 9 .558 Contra Costa S of Ozol Rock. Comment
  JEPS21710  Plantago major John Thomas Howell 1955-8-24 30898 Contra Costa near Diablo Country Club Comment
  JEPS78614  Plantago subnuda Walter Knight, L. R. Heckard, and Bert Johnson 1978-9-28 3298 Contra Costa Botany Cove, Browns Island Comment
  UC11981  Platanus racemosa F. W. Koch Aug. 1895 Contra Costa Wildcat Creek Comment
  CAS-BOT-BC91607  Platystemon californicus Alice Eastwood 1914-3-14 3763 Contra Costa Byron Springs. Comment
  UC101597  Platystemon californicus Katharine Brandegee 1907-5-5 g Contra Costa between Antioch and Marsh Creek; between Antioch and Marsh Creek Comment
  CAS-BOT-BC91606  Platystemon californicus Alice Eastwood 1906-5-1 s.n. Contra Costa Berkeley. Comment
  UCD32384  Platystemon californicus Beecher Crampton 1950-4-22 528 Contra Costa Contra Costa County, above Judsonville, above old Empire Mine to south around top of hills. 182 Comment
  JEPS6155  Plectritis brachystemon L. T. Dempster 1954-5-29 P 14 Contra Costa Orinda, Canyon Drive Orinda; , Canyon Drive Comment
  JEPS4797  Plectritis ciliosa subsp. ciliosa W. L. Jepson 1922-5-23 9665 Contra Costa Mount Diablo Comment
  UC691526  Plectritis ciliosa subsp. ciliosa Mary L. Bowerman 1933-4-15 1853 Contra Costa Canyon s of Arroyo del Cerro (Mount Diablo); Mount Diablo Comment
  RSA517359  Plectritis congesta subsp. nitida L. T. Dempster 1954-6-4 P 16 Contra Costa Wildcat Canyon Road, N of Orinda. Comment
  JEPS111775  Plectritis macrocera D. G. Kelch 2005-3-25 05 .83 Contra Costa Pinole Peak Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak 250 Comment
  JEPS14520  Plectritis macrocera L. T. Dempster 1956-5-26 1003 Contra Costa above Overhill Court (Orinda); Orinda Comment
  UC691524  Plectritis macrocera Mary L. Bowerman 1931-4-25 784 Contra Costa summit of Mount Diablo Mount Diablo Comment
  UC400145  Pleuropogon californicus Ynes Mexia 1929-4-21 2388 Contra Costa junction of Franklin Canyon Comment
  OBI22108  Pleuropogon californicus Peter H. Raven, G. Thomas Robbins 1956-4-28 9042 Contra Costa Just E of jctn to Martinez along State hwy 4 Comment
  CAS-BOT-BC356115  Pluchea odorata Walter Knight; I. Knight; J. T. Howell; E. McClintock; S. Rae; B. Doyle 1978-9-5 3239 Contra Costa Browns Island. Botany Cove Comment
  SJSU5395  Pluchea odorata var. odorata M. Bruch 1966-10-30 Contra Costa SW end of Winter Island, New York Slough, confluence of San Joaquin-Sacramento rivers c. 2 mi NW of Antioch Comment
  CDA29001  Poa annua D. G. Kelch 2006-5-7 6 .159 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  SBBG44987  Poa annua A. Eastwood, J. T. Howell 1936-4-19 Contra Costa Antioch Comment
  UCD36910  Poa annua Beecher Crampton 1956-5-14 3374 Contra Costa 5 miles south of city of Antioch, on Empire Mine Drive, at head of Horse Valley. Comment
  UC2028529  Poa annua Barbara Ertter 1998-1-4 15890 Contra Costa South end Diablo Foothills Regional Park southeast of Walnut Creek, Hazzard Pond north of Livorna Staging Area Comment
  UC1618191  Poa bulbosa Barbara Ertter, Lynne Hosley 1993-4-17 11507 Contra Costa ca. 10 air mi. n. Livermore (hills in lee of Mt. Diablo, e. side open meadow along Blue Oak trail, Morgan Territory); Morgan Territory 609 Comment
  CAS-BOT-BC246647  Poa howellii Mary L. Bowerman 1933-6-3 2247 Contra Costa Mount Diablo. Meridian Peak summit: ridge north of lower junction of one-way roads Comment
  POM300703  Poa howellii Mary L. Bowerman 1933-3-21 2148 Contra Costa Below Grape Spring (south from Curry Canyon) Comment
  JEPS71285  Poa secunda W. L. Jepson 1925-4-26 10687 Contra Costa Black Hills Mt Diablo Comment
  RSA484219  Poa secunda A. A. Beetle 1941-3-23 1713 Contra Costa 1 mile east of St. Mary's College 183 Comment
  SEINET11695803  Poa secunda Unknown 1956-5-14 3387 Contra Costa 6.7 mi SW of city of Antioch, between old coal mining towns of Somersville & Nortonville Comment
  CAS-BOT-BC236388  Poa secunda subsp. secunda Mary L. Bowerman 1935-4-26 2924 Contra Costa Mount Diablo. Meridian Peak summit 1143 Comment
  SEINET5554719  Poaceae J. Hamai 1985-1 s.n. Contra Costa Russell Reserve. Comment
  UC971696  Pogogyne douglasii Leo Koch 1940-6-5 1002 Contra Costa along railroad tracks, saline flat two miles south fo San Rafael ferry dock Comment
  JEPS107077  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). Comment
  UC1607677  Pogogyne serpylloides Barbara Ertter, Chris Thayer 1993-5-7 11696 Contra Costa East Bay Municipal Utilities District land e. Tilden Park (Hopkins Spring 0.5 mi. s.e. of Inspiration Point on Wildcat Canyon Rd.); Hopkins Spring 304 Comment
  JEPS78820  Pogogyne serpylloides Edward Lee 1936-5-24 2161 Contra Costa Headwaters of Marsh Creek, about 8 miles from Marsh Creek Road, Morgan Territory Comment
  POM193972  Pogogyne serpylloides J. T. Howell 1930-4-22 4747 Contra Costa Bald Peak Comment
  RSA0022141  Pogogyne serpylloides Mary L. Bowerman 1931-5-21 876 Contra Costa Curry Canon. Hard, open flat by Olafsons barn 274 Comment
  UC691511  Pogogyne serpylloides Mary L. Bowerman 1932-4-9 1322 Contra Costa Inner Black Hills: Firebreak on large spur which heads into Sycamore Canyon Comment
  UC762113  Pogogyne zizyphoroides R. F. Hoover 1941-4-12 4842 Contra Costa 2 miles S of Antioch Comment
  UC1818877  Polygonum Barbara Ertter 1995-8-19 14504 a Contra Costa Edge of Cerrito Creek on north side of Albany Hill, south edge of El Cerrito; dense weeds at edge of sluggish water. Comment
  UC692129  Polygonum amphibium Mary L. Bowerman 1935-7-22 3182 Contra Costa Chase Pond Mount Diablo (in water 4 feet from shore) 548 Comment
  UC692130  Polygonum amphibium Mary L. Bowerman 1935-9-13 3335 Contra Costa Chase 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
  CAS-BOT-BC413969  Polygonum aviculare subsp. aviculare Walter Knight; Wayne Roderick; Steve Edwards; Bob Doyle 1978-9-19 3256 Contra Costa Brown's Island, South Landing Comment
  CAS-BOT-BC414177  Polygonum aviculare subsp. depressum R. E. Frenkel 1963-9-8 278 Contra Costa On Walnut Blvd., Walnut Creek Comment
  CDA23558  Polygonum aviculare subsp. neglectum D. G. Kelch 2007-10-6 7 .632 Contra Costa Carquinez Strait; Fernandez Ranch. Muir Land Trust Property 4.5 km W of Rodeo. Comment
  UC1818918  Polygonum lapathifolium Barbara Ertter 1995-8-19 14503 Contra Costa Edge of Cerrito Creek on north side of Albany Hill, south edge of El Cerrito; dense weeds at edge of sluggish water. Comment
  CDA42731  Polypodium calirhiza D. G. Kelch 2004-3-5 4 .004 Contra Costa Carquinez Strait Region; Rankin Park Open Space, Martinez. 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
  UC440151  Polypodium calirhiza Ivar Tidestrom June, 1895 Contra Costa Crockett Comment
  CAS-BOT-BC361416  Polypogon Peter Rubtzoff 1968-9-18 5965 Contra Costa North Gate Road, ca. 5 miles northwest of Mt. Diablo State Park north entrance. Comment
  CAS-BOT-BC233018  Polypogon interruptus Mary L. Bowerman 1931-4-4 656 Contra Costa Mount Diablo. West Road 4.5 miles from entrance Comment
  CDA2351  Polypogon monspeliensis A. A. Beetle 1941-6-24 1750 Contra Costa Point Richmond on San Francisco Bay 0 Comment
  RSA484484  Polypogon monspeliensis A. A. Beetle 1941-6-24 s.n. Contra Costa Point Richmond on San Francisco Bay. Comment
  UCR2722  Polypogon monspeliensis A. A. Beetle 1941-6-24 1750 Contra Costa Point Richmond on San Francisco Bay Comment
  SEINET10960581  Polypogon monspeliensis Thomas Morley 1940-11-21 Morley 85 Contra Costa Associated with Salix, typha, and Cyperus in fine, rich moist soil; banks at upper end of San Leandro Lake near mouth of Redwood Creek 130 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
  RSA0026148  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
  CAS-BOT-BC102382  Populus fremontii Ira L. Wiggins 1930-4-18 4602 Contra Costa Levee bank, S.E. side of Jersey Island Comment
  CAS-BOT-BC102383  Populus fremontii Walter Knight; Irja Knight; J. T. Howell; E. McClintock; et al. 1978-9-5 3223 Contra Costa Browns Island Comment
  SD211523  Potamogeton diversifolius Barbara Ertter, Brad Olson 1991-9-28 10839 Contra Costa San Pablo Reservoir between Orinda and El Sobrante, in shallow water at South end of reservoir 91 Comment
  UC2029168  Potamogeton pectinatus Barbara Ertter 2000-7-16 17399 Contra Costa Lower Pine Creek in Diablo Foothills Regional Park. Comment
  CAS-BOT-BC143056  Potentilla anserina subsp. pacifica Walter Knight; J. Dean; B. Mortensen; R. Bensler; B. Atwater 1959-4-13 3361 Contra Costa Botany Cove. Brown's Island Comment
  JEPS23820  Proboscidea lutea G. Thomas Robbins 1959-8-1 4114 Contra Costa roadside berm of frontage road just s Mt. Diablo Blvd. ((about 0.5 mi e of concrete bridge at Charles Hill and about 0.2 mi w of jct. of Hidden Valley Rd.), 2 mi w of Lafayette) 144 Comment
  UC1784905  Prunus dulcis Barbara Ertter, Chris Thayer 1995-4-25 s. n. Contra Costa Sycamore Creek on SE foot of Mount Diablo Comment
  UC691118  Prunus dulcis Mary L. Bowerman 1936-8-19 3533 Contra Costa Mount Diablo Comment
  UC2012995  Prunus dulcis Barbara Ertter with Lisa Schultheis 1996-9-2 15277 Contra Costa South side Mount Diablo, east end of Blackhawk Ridge. Comment
  CDA42354  Pseudognaphalium beneolens D. G. Kelch, Vince Guise 2012-7-26 12 .231 Contra Costa Carquinez Strait.; Martinez. Summit of Shady Glen Rd on sandstone outcrop. Comment
  JEPS111736  Pseudognaphalium beneolens D. G. Kelch 2004-9-2 04 .345 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Steep road-cut. Alhambra Road. South of Green St. 3 Comment
  UC1795890  Pseudognaphalium californicum Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14636 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; along stream above stable, riparian vegetation. 91 Comment
  UC1795643  Pseudognaphalium luteoalbum Barbara Ertter, Drew Hansen 1995-3-28 13938 Contra Costa Chevron oil refinery in northwest Richmond off of Castro St. edge of levees thru created bioremediation marsh south of Wildcat Creek. Comment
  CAS-BOT-BC356972  Pseudognaphalium luteoalbum Walter Knight 1977-7-20 s.n. Contra Costa East Bay Regional Park District. On Briones Ridge at about 1,000 ft elev. Briones Regional Park 304 Comment
  CAS-BOT-BC356973  Pseudognaphalium luteoalbum John Thomas Howell; Gordon H. True 1972-6-29 48934 Contra Costa On Byron Hot Springs Road southeast of Byron Comment
  UC697187  Pseudognaphalium ramosissimum Mary L. Bowerman 1938-11-19 3735 Contra Costa on stream bank Mount Diablo, Mitchell Canyon 259 Comment
  UC1948940  Pseudognaphalium thermale William J. Ferlatte, L. Maynard Moe 1970-4-27 1257 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC1795691  Pseudognaphalium thermale Barbara Ertter, Kristin Ertter 1995-7-11 14469 Contra Costa Pine Creek on west side of Mt. Diablo southwest of Walnut Creek; Diablo Foothills Regional Park, on rock slope. Comment
  CDA9495  Psilocarphus brevissimus D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .219 Contra Costa Byron Airport. Comment
  UC1051469  Psilocarphus brevissimus var. brevissimus Herbert L. Mason 1952-4-14 14266 Contra Costa 3.5 mi s Byron Comment
  UC1733839  Psilocarphus chilensis Kay H. Beach 1941-4-30 1083 a Contra Costa near Byron Hot Springs Station Comment
  POM138612  Ptelea baldwinii subsp. crenulata C. F. Baker 1903-4-28 2943 Contra Costa Mitchell's Canyon, Mt. Diablo. Comment
  CAS-BOT-BC148647  Ptelea crenulata Volney Rattan 1887-5-22 s.n. Contra Costa Alhambra Val. Comment
  HSC93960  Ptelea crenulata C. Newberry 1994-4-30 7253 Contra Costa Mt. Diablo State Park, trail from Mitchell Canyon Parking to Donner Creek 900 Comment
  JEPS40168  Ptelea crenulata H. L. Mason 1928-3-31 Contra Costa Mt. Diablo Comment
  SJSU5754  Ptelea crenulata C. O. Dudley 1966-5-1 103 Contra Costa Reliez Valley, Briones Hills, N of Lafayette 152 Comment
  UC1277976  Ptelea crenulata B. Crampton 1957-7-9 4273 Contra Costa 2-3 mi nw Martinez (slopes above the Carquinez Straits) Comment
  UC137407  Ptelea crenulata C. F. Baker 1903-4-28 2943 Contra Costa Mitchell's Canyon; Mt. Diablo Comment
  UC17375  Ptelea crenulata F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  UC571100  Ptelea crenulata H. L. Mason 1928-4-1 4273 Contra Costa hills n Mount Diablo (canyon back of Pittsburg) Comment
  UC571101  Ptelea crenulata H. L. Mason 1928-4-1 4270 Contra Costa hills n Mount Diablo (canyon back of Antioch hills) Comment
  UC692585  Ptelea crenulata Mary L. Bowerman 1935-6-1 3099 Contra Costa gully e Mitchell-Pine divide; Mount Diablo 975 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
  UCD35992  Pterostegia drymarioides Beecher Crampton 1949-4-1 422 Contra Costa Contra Costa County, Moraga Ridge. 60 Comment
  RSA0031298  Puccinellia nuttalliana Barbara Ertter, Brad Olson 2000-6-2 17301 Contra Costa Brushy Peak Regional Preserve NE of Livermore, at south base of Brushy Peak. Comment
  JEPS112099  Pyracantha crenatoserrata D. G. Kelch 2005-5-13 05 .246 Contra Costa Martinez. South of oil refinery along Railroad tracks in fragment of habitat 28 Comment
  JEPS95248  Quercus Steve Edwards 1995-10-20 Contra Costa Round Top, W flank Robert Sibley Volcanic Regional Preserve Comment
  CAS-BOT-BC104161  Quercus X morehus H. E. McMinn 82 Contra Costa N slope of Mt. Diablo near summit Comment
  UC691317  Quercus X morehus Mary L. Bowerman 1933-6-14 2278 Contra Costa Inner Black Hills, w of 1970 Mount Diablo Comment
  UC521668  Quercus agrifolia Joseph Andorfer Ewan 1933-10-15 8027 Contra Costa sw slope Mt. Diablo 1066 Comment
  UCD45040  Quercus agrifolia J. M Tucker 1946-3-14 1375 Contra Costa Small tree ca. 15 feet tall; sunny southeast-faicng slope, on border of redwood grove associated with Ceanothus thyrsiflorus and Baccharis; Redwood Peak, ca. 200 yards south of summit, Contra Costa County, California. Comment
  UC1481546  Quercus berberidifolia Neil Havlik 1980-5-15 918 Contra Costa Standard Oil Refinery, in a draw above asphalt plant Richmond Comment
  UC691289  Quercus berberidifolia Mary L. Bowerman 1932-9-17 1584 Contra Costa Donner Canyon, w fork Mount Diablo 304 Comment
  UC2028192  Quercus berberidifolia Barbara Ertter with Ann Dennis 1998-1-25 15908 a Contra Costa Donner Canyon on north side Mount Diablo, Middle Trail/Falls Trail. Comment
  CDA19816  Quercus chrysolepis P. Akers 2002-5-11 s.n. Contra Costa Northern California; Mt Diablo Summit Trail. 938 Comment
  UC1135389  Quercus chrysolepis R. W. Lundh 1933-3-13 212 Contra Costa 0.75 mi nw Pinehurst; Concord Quad. 304 Comment
  CAS-BOT-BC86649  Quercus douglasii Joseph Andorfer Ewan 1933-10-15 8028 Contra Costa Mt. Diablo 1066 Comment
  UCD45689  Quercus douglasii G. L. Stebbins, jr. 1945-10-14 3590 Contra Costa Northeast side of Mt. Diablo. Beside barn on road to old quicksilver mine. Comment
  RSA476581  Quercus douglasii H. de Forest 1930-4-13 s.n. Contra Costa Road through N end Diablo Range. 915 Comment
  SBBG115591  Quercus garryana E. Dean, M. Bowerman, B. Ertter, J. M. Tucker, J. Kerbavaz 2000-9-13 654 Contra Costa Mt Diablo St Park, Fossil Ridge, just upslope of S Gate Rd, just W of Gibraltar Rock, SE of Rock City 487 Comment
  UC1748011  Quercus garryana E. Dean, M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 654 Contra Costa Fossil Ridge, just upslope of South Gate Rd., just W of Gibralter Rock, SE of Rock City Mount Diablo State Park 487 Comment
  UCD17418  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, just upslope of South Gate Rd., just west of Gibraltar Rock, southeast of Rock City. 487 Comment
  UCD17436  Quercus garryana E. Dean; M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 658 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
  UC691308  Quercus kelloggii Mary L. Bowerman 1931-9-27 1047 Contra Costa n side North Peak (Quicksilver Mine); Mount Diablo Comment
Read comments
Jan 15 2014
  UC691309  Quercus kelloggii Mary L. Bowerman 1936-8-19 3532 Contra Costa ne-face on s side Pine Canyon mouth (most n w-heading streamlet shown on topographic map (now dry)); Mount Diablo 173 Comment
  UC5623  Quercus kelloggii W. G. Klee 1878-1 Contra Costa between Lafayette and the Fish Ranch (on the road to Mt. Diablo) Comment
  JEPS37352  Quercus lobata W. L. Jepson 1916-10-22 6852 Contra Costa Las Trampas Ridge Comment
  UCD47102  Quercus palmeri J. M. Tucker 1981-4-25 4453 I Contra Costa California, Contra Costa County: Antonio Souza Ranch southwest of Byron (extended section NW quarter Sec. 31, R3E, T1S, Mt. Diablo Meridian). 309 Comment
  RSA388013  Quercus palmeri J. M. Tucker 1981-4-25 4453 -B Contra Costa Antonio Souza Ranch, SW of Byron. 309 Comment
  UCD81370  Quercus palmeri J. M. Tucker 1981-4-25 4453 -E Contra Costa Antonio Souza Ranch southwest of Byron. Mt. Diablo Meridian. 309 Comment
  UC1135847  Quercus wislizeni R. W. Lundh 1932-8-17 133 Contra Costa 1 mi e Round Valley; Mt. Diablo Quad. 518 Comment
  UC5689  Quercus wislizeni unknown 78 Contra Costa Summit Mt. Diablo Comment
  UC691291  Quercus wislizeni Mary L. Bowerman 1933-5-9 2052 Contra Costa Mountain House Canyon, n face Mount Diablo 670 Comment
  UCD47497  Quercus wislizeni John M. Tucker 1946-3-4 1378 Contra Costa East side of Redwood Peak, Oakland hills, Contra Costa County, California. Comment
  CAS-BOT-BC104711  Quercus wislizeni Mary L. Bowerman 1934-3-18 2480 Contra Costa Mount Diablo. Russelman Park: End of road Comment
  UC691290  Quercus wislizeni var. frutescens Mary L. Bowerman 1931-4-25 777 Contra Costa Mount Diablo Comment
  JEPS111763  Rafinesquia californica D. G. Kelch 2005-5-13 05 .260 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Area along Vista Road ~ 2.5 kiloms West of Martinez 45 Comment
  UC584417  Rafinesquia californica Univ. of Calif., Hort. Genetics 1937-1 564 Contra Costa Briones Hills Comment
  UC92077  Rafinesquia californica E. L. Greene 1886-5-24 Contra Costa Mount Diablo Comment
  UC2028488  Ranunculus aquatilis var. diffusus Barbara Ertter 1998-5-3 16057 Contra Costa Turtle Rock ponds along Barbeque Terrace Road in upper Pine Canyon, southwest flank of Mount Diablo Comment
  UC2027988  Ranunculus canus Barbara Ertter 1998-5-3 16032 Contra Costa Pine Ridge summit of Wall Point Road at southwest base of Mount Diablo. Comment
  UC2028119  Ranunculus canus Barbara Ertter with Richard K. Brummitt 1998-5-6 16090 Contra Costa Lower Donner Canyon on north base of Mount Diablo, Hetherington Trail upstream from Donner. Comment
  POM268449  Ranunculus canus var. laetus Lyman Benson 1935-3-16 6272 Contra Costa Mitchell Canyon near Clayton; Mt. Range: Mt. Diablo; Watershed: Walnut Creek. 244 Comment
  POM268454  Ranunculus canus var. laetus Lyman Benson 1935-3-16 6281 Contra Costa 3 miles S of Antioch, Mt. Range: Mt. Diablo; Watershed: Sacramento River 152 Comment
  POM282740  Ranunculus hebecarpus L. S. Rose 1934-3-21 34071 Contra Costa Marsh Creek, 6 miles E of Clayton. 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
  UC2043025  Ranunculus lobbii Barbara Ertter with David Gowen 2006-3-1 18665 Contra Costa Upper San Leandro Reservoir Watershed (EBMUD) south Moraga, shallow small pond along SE end of Rocky Ridge Road as it drops to King Canyon Road. Comment
  CHSC116607  Raphanus raphanistrum Lowell Ahart; Josephine Guardino 2016-4-19 20772 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. 1.4 miles northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  JEPS100009  Raphanus raphanistrum G. Smick 2003-4-8 GAS 132 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC650429  Raphanus sativus Ira L. Wiggins 1930-4-18 4610 Contra Costa Jersey Island Comment
  SEINET12210141  Rhamnus californica M. T. Doutt 1930-1 96 Contra Costa Marsh Creek Comment
  UC1177069  Rhamnus tomentella subsp. tomentella Peter H. Raven 1950-7-5 2486 Contra Costa near Juniper Camp; Mt. Diablo Comment
  UC1818932  Rhamnus tomentella subsp. tomentella Barbara Ertter, Brad Olson, Diane Lake 1996-4-14 14593 Contra Costa East side of Mt. Diablo, mid-slope on Prospectors-Gap Rd. in solid brushland. Comment
  UC692593  Rhamnus tomentella subsp. tomentella Mary L. Bowerman 1932-11-19 1658 Contra Costa Lower Grapevine Spring, at head of spring Mount Diablo Comment
  UC692577  Rhus trilobata Mary L. Bowerman 1933-6-21 2328 Contra Costa Donner Canyon; Mount Diablo Comment
  POM300719  Rhus trilobata var. pilosissima Mary L. Bowerman 1933-3-25 1776 Contra Costa Emmons Canyon, off Stone Valley Comment
  CAS-BOT-BC168919  Ribes malvaceum E. M. Zeile 1921-11-19 s.n. Contra Costa Mt. Diablo Comment
  UC583115  Ribes malvaceum Alice Eastwood, John Thomas Howell 1936-4-19 2140 Contra Costa Nortonville Comment
  JEPS111987  Ribes menziesii D. G. Kelch 2005-3-25 05 .80 Contra Costa Fernandez Ranch Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak. 150 Comment
  JEPS97608  Ribes menziesii R. D. Stone 1981-3-23 345 Contra Costa Huckleberry Trail Oakland Hills, near Alameda-Contra Costa county line (NE of intersection of Skyline Blvd. and Snake Rd.) 396 Comment
  SEINET14419467 Image available Ribes menziesii J. Arrigo 1975-3-6 10 Contra Costa Along Marsh Creek Road near Mt. Diablo area. 183 Comment
  CAS-BOT-BC206019  Ribes menziesii Peter H. Raven 1956-4-8 8985 Contra Costa About 0.5 mile north-east of Grizzly Peak 396 Comment
  LA205508  Ribes sanguineum Joseph Andorfer Ewan; 1934-3-10 8650 Contra Costa Wildcat Canyon, 1.5 mi. below Orinda road bridge Comment
  JEPS111985 Image available Ribes sanguineum var. glutinosum D. G. Kelch 2004-6-19 04 .285 Contra Costa Crockett - West Valona north-facing hill above/along railroad tracks. West of Carquinez Bridge. Crockett 20 Comment
  JEPS77002 Image available Ribes sanguineum var. glutinosum Robert M. Lloyd 1963-3-17 2132 Contra Costa 0.5 mi e Grizzly Peak Road (on Skyline Drive (across from 7090 Skyline Drive), Huckleberry trail); Huckleberry trail Comment
  JEPS97012  Ribes sanguineum var. glutinosum R. D. Stone 1981-1-31 334 Contra Costa Huckleberry Trail Oakland Hills, near Alameda-Contra Costa county line (NE of intersection of Skyline Blvd. and Snake Rd.) Comment
  CAS-BOT-BC362962  Rigiopappus leptocladus Mary L. Bowerman 1931-4-4 669 Contra Costa Mount Diablo. West of Turtle Rock Comment
  UC697151  Rigiopappus leptocladus Mary L. Bowerman 1931-4-4 669 Contra Costa w Turtle Rock; Mount Diablo Comment
  CAS-BOT-BC362964  Rigiopappus leptocladus Brandegee No date on label s.n. Contra Costa Antioch Comment
  RSA72859  Rigiopappus leptocladus A. Kellogg, W. G. W. Harford 1869-6-6 524 Contra Costa Summerville, Mt. Diablo. Comment
  CDA25732  Romulea rosea D. G. Kelch, D. A. Weinstein 2008-3-3 8 .025 Contra Costa East Bay.; Richmond. Wildcat Canyon Park. Alvarado Unit (W end). Comment
  UC2062641  Rorippa curvipes Barbara Ertter with Jim Dunne, David Gowen, Lech Naumovich 2009-12-3 197801 Contra Costa Mudflats at upper (south) end of San Pablo Dam Reservoir northwest of Orinda. Comment
  CAS-BOT-BC74412  Rorippa curvisiliqua W. W. Carruth 1902-4-29 s.n. Contra Costa Mount Diablo. Comment
  SD103750  Rorippa palustris subsp. glabra Walter Knight, Irja Knight 1979-6-15 3398 Contra Costa Crooked slough, Brown's Island. 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
  JEPS112081  Rosa californica D. G. Kelch 2003-8-13 03 .123 Contra Costa Vaca Canyon 165 Comment
  UC1789171  Rosa eglanteria Barbara Ertter 2001-11-3 17812 Contra Costa Tilden Regional Park, Selby Trail ca. 1/4 miles north of Lake Anza Comment
  JEPS45672  Rosa gymnocarpa W. L. Jepson 1924-12-6 10669 Contra Costa Pinehurst San Leandro Creek Comment
  UCD77977  Rubus pensilvanicus Robert E. Preston 2002-6-26 1891 Contra Costa Ca. 0.25 mi SW of Orwood, along Orwood Rd, near Old River 0 Comment
  JEPS66120  Rubus ulmifolius var. inermis Pat Watters 1971-6-9 Contra Costa vacant lot at Ferry and Green Streets Martinez Comment
  CAS-BOT-BC158773  Rubus ursinus Walter Knight; Joanne Dean 1978-8-14 3167 Contra Costa Browns Island Comment
  CAS-BOT-BC158774  Rubus ursinus Roxana S. Ferris 1924-4-13 4079 Contra Costa Mitchell Canyon, Mt. Diablo Comment
  CAS-BOT-BC158772  Rubus ursinus Elsie Zeile 1910-4-2 s.n. Contra Costa Fish Ranch r. Comment
  UC2029018  Rubus ursinus Barbara Ertter 1999-7-17 16767 Contra Costa Tilden Regional Park, trail to Jewell Lake paralleling Wildcat Creek, through thick woodland growth. Comment
  JEPS99966  Rumex acetosella G. Smick 2003-5-6 GAS 175 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC421865  Rumex acetosella Mary L. Bowerman 1935-5-18 3016 Contra Costa Mount Diablo. Road above Indian Ceremonial Spring: Roadbank at hairpin turn. Comment
  UC692070  Rumex crispus Mary L. Bowerman 1930-10-4 478 Contra Costa Maple Spring Mount Diablo Comment
  UCD164880  Rumex crispus Henry House 1995-5-20 1995- 14 Contra Costa Adjacent to Walnut Blvd., approximately 1.25 km south of Marsh Creek Road. 30 Comment
  CAS-BOT-BC421626  Rumex crispus R. E. Frenkel 1963-12-4 310 Contra Costa On California Hwy. 21, Market Plaza Center, Alamo 79 Comment
  CDA29534  Rumex pulcher D. G. Kelch, Troy MacGregor 2009-5-1 9 .281 Contra Costa Carquinez Strait; Fernandez Ranch in valley bottom along Christie Rd. Comment
  JEPS41050  Rumex pulcher Rimo Bacigalupi, and L. R. Heckard 1965-5-11 9075 Contra Costa sw of Richmond (w side of Brooks Island); San Francisco Bay, Brooks Island 6 Comment
  CDA29768  Rupertia physodes D. G. Kelch, Troy MacGregor 2009-5-1 9 .267 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  CDA42433  Rupertia physodes D. G. Kelch 2012-5-27 12 .073 Contra Costa Carquinez Strait Region; Pinole Valley Park. Comment
  SJSU5703  Rupertia physodes C. O. Dudley 1966-5-1 113 a Contra Costa Reliez Valley, Briones Hills, N of Lafayette 152 Comment
  UC1594172  Rupertia physodes Jerry Powell 1991-6-21 1608 Contra Costa along creek well away from water Briones Regional Park 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
  UC55203  Ruppia cirrhosa Geo. Hansen Sep 1899 Contra Costa Byron Springs Comment
  JEPS112039  Ruppia maritima D. G. Kelch 2004-4-26 04 .138 Contra Costa Point Pinole 1 Comment
  CAS-BOT-BC454141  Ruppia maritima J. W. Congdon 1889-6-20 10 Contra Costa Byron Springs Comment
  CDA35214  Ruta chalepensis F. Brucato & G. Sorensen 1964-5-6 s.n. Contra Costa Brentwood, Deer Valley Road. 0 Comment
  UC1818945  Sagina apetala Barbara Ertter, Mary Bowerman, Lisa Schultheis 1995-3-31 13943 Contra Costa Mount Diablo State Park, lower end of Mitchell Canyon south of Clayton, oak woodland/grassland open flat area on east side of stream not far from trail head. 182 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
  UC2028200  Sagina apetala Barbara Ertter 1998-5-3 16052 Contra Costa Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. Comment
  JEPS111806  Salicornia virginica D. G. Kelch 2003-8-13 03 .98 Contra Costa Martinez Marsh 0 Comment
  UC1949224  Salicornia virginica Barbara Ertter with Elizabeth Neese 1988-10-15 7974 Contra Costa W of I-580 in El Cerrito, W side along Rydin Road N of Central Avenue Comment
  UC69370  Salix Wm. W. Mott 1905-3-1 Contra Costa n.e. corner San Pablo Ave. & McAvoy Lane Comment
  POM300631  Salix exigua Mary L. Bowerman 1935-5-30 3081 Contra Costa Mt. Diablo. By Donner Canyon stream. 152 Comment
  CAS-BOT-BC107875  Salix gooddingii Ira L. Wiggins 1930-4-18 4591 Contra Costa Jersey Island Comment
  CAS-BOT-BC104088  Salix hindsiana Ira L. Wiggins 1930-4-18 4587 Contra Costa Levee banks, Jersey Island Comment
  UCD35153  Salix hindsiana Beecher Crampton 1950-7-4 600 Contra Costa Railroad embankment, Richmond. Comment
  CDA34023  Salix laevigata D. G. Kelch 2011-3-31 11 .079 Contra Costa Carquinez Region; Richmond; Hilltop Lake Park. 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
  POM300614  Salix laevigata Mary L. Bowerman 1933-4-15 1854 Contra Costa Canyon S of Arroyo del Cerro Comment
  UC437380  Salix laevigata J. Burtt Davy 1895-4-13 1005 Contra Costa near Lafayette Comment
  UC494334  Salix laevigata Annetta M. Carter 1933-3-12 266 Contra Costa ca. 1.5 mi e Contra Costa Co. Preventorium (Marsh Creek Rd.) Comment
  UC406991  Salix laevigata var. congesta Ira L. Wiggins 1930-4-18 4601 Contra Costa levee locks Jersey Isl. Comment
  CDA33974  Salix lasiolepis D. G. Kelch 2011-3-31 11 .08 Contra Costa Carquinez Region; Richmond; Hilltop Lake Park. Comment
  CDA39005  Salix lasiolepis D. G. Kelch 2007-4-29 7 .208 Contra Costa Carquinez Strait; Richmond; Chevy s Hill N. Hilltop Dr. Comment
  JEPS75493  Salix lasiolepis P. F. Yorks 1976-1-31 503 Contra Costa n of Briones Reservoir (ca. 1 km. s of Bear Creek Rd. on Hampton Rd.); Hampton Road Natural Reserve 170 Comment
  UC504068  Salix lasiolepis Lee Bonar 1933-4-17 Contra Costa near Nortonville (hills e of Pittsburg) Comment
  UC692055  Salix lasiolepis Mary L. Bowerman 1932-8-27 1520 Contra Costa spring s Turtle Rock; Mount Diablo Comment
  UCD150912  Salix lasiolepis James A. Neilson Jr.; Samuel A. Bamberg 1972-10-22 3495 Contra Costa Walnut Creek drainage at State Highway 4. Elevation estimated using Google Earth by label maker. 1 Comment
  POM300607  Salix lasiolepis Mary L. Bowerman 1933-3-25 1777 Contra Costa Diablo Stock Farm (Stone Valley) Canyon. Mt. Diablo. 274 Comment
  CAS-BOT-BC129552  Salix lasiolepis var. lasiolepis Alice Eastwood 1914-2-24 3730 Contra Costa Antioch Comment
  CAS-BOT-BC129554  Salix lasiolepis var. lasiolepis Walter Knight 1965-3-1 s.n. Contra Costa Antioch dunes, by water's edge - Carquinez Straights Comment
  CAS-BOT-BC129559  Salix lasiolepis var. lasiolepis Alice Eastwood 1914-3-6 s.n. Contra Costa Redwood Canyon 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
  UC41510  Salsola tragus L. L. Guss 1900-6-1 Contra Costa Antioch Comment
  UC634924  Salvia columbariae H. L. Mason 1929-3-29 5121 Contra Costa Mt. Diablo 762 Comment
  UC691722  Salvia columbariae Mary L. Bowerman 1933-5-2 1942 Contra Costa below Pioneer Camp, Mount Diablo; Mount Diablo 762 Comment
  JEPS112471  Salvia leucophylla D. G. Kelch 2005-5-1 05 .186 Contra Costa Crockett - Edwards Canyon. Below road near junction of Cummings Skyway and Crockett Blvd. 150 Comment
  JEPS62740  Salvia mellifera unknown 1919-6-8 8330 Contra Costa Mt. Diablo San Francisco Bay (vicinity of San Francisco Bay) Comment
  UC691477  Salvia mellifera Mary L. Bowerman 1932-2-28 1096 Contra Costa n of junction of Curry Canyon and trail to Cave Point; Mount Diablo 533 Comment
  UCD125358  Salvia mellifera Beecher Crampton 1956-5-14 3406 Contra Costa Southern boundary of Mount Diablo State Park. Comment
  RSA434141  Salvia mellifera August Hartman 1960-4-19 s.n. Contra Costa South Gate Road, Mt. Diablo 305 Comment
  UC2045292 Image available Salvia mellifera Mary L. Bowerman 1931-2-8 507 Contra Costa West road Comment
  UC25745  Salvia spathacea F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  JEPS12714  Sambucus mexicana Katharine Brandegee 1907-6-16 Contra Costa Antioch Comment
  CAS-BOT-BC238632  Sambucus nigra subsp. caerulea Alice Eastwood 1915-5-30 4548 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC238634  Sambucus nigra subsp. caerulea Barrett Anderson 1987-4-30 3487 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD 125 Comment
  CAS-BOT-BC238633  Sambucus nigra subsp. caerulea Mary L. Bowerman 1930-8-31 452 a Contra Costa Mount Diablo. Sloan Road, Curry Canyon (east of the Sloan Place) Comment
  CAS-BOT-BC223246  Sanicula bipinnata Brandegee No date on label s.n. Contra Costa Antioch 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
  CHSC21621  Sanicula bipinnatifida Willis Ball 1975-3-25 502 Contra Costa Contra Loma Regional Park. In area #3. At peak of larg hill inarea #3 ca. 120 yds sw of the Dam. 60 Comment
  UC691875  Sanicula bipinnatifida Mary L. Bowerman 1931-3-21 595 Contra Costa Mount Diablo, Sycamore Canyon Sycamore Canyon; Mount Diablo, Sycamore Canyon 350 Comment
  UCD127942  Sanicula bipinnatifida P. B. Kennedy 1914-3-15 4624 Contra Costa Sunset Cemetery. Comment
  RSA0027881  Sanicula crassicaulis Barbara Ertter, Holly C. Forbes 1997-4-20 15563 Contra Costa North base of Mount Diablo, Eagle Peak Trail on NE side of Eagle Ridge below Twin Peaks. Comment
  JEPS2845 Image available Sanicula saxatilis Edw. L. Greene 1892-6-1 Contra Costa Mt. Diablo 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
  UCD102395  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. 900 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
  JEPS43797  Saxifraga californica E. W. Hicks 1917-3-24 107 Contra Costa Mount Diablo 304 Comment
  JEPS68967  Saxifraga californica Edward Lee 1935-3-10 1300 Contra Costa s watershed of Kirker Creek (Nortonville); , Kirker Creek Comment
  OBI70103  Scabiosa atropurpurea A. G. Murdock, D. G. Kelch 2003-9-12 200 Contra Costa Carquinez Strait: Nr Selby, W of Crockett 101 Comment
  UC2027847  Schinus molle Barbara Ertter, Mary Bowerman 1996-11-1 15401 Contra Costa North base of Mount Diablo, near Donner Canyon trailhead at end of Regency Drive. Comment
  CAS-BOT-BC111461  Schoenoplectus californicus Ira L. Wiggins 1930-11-18 4592 Contra Costa Levees, Jersey Island. Comment
  UC2070498  Schoenoplectus californicus Barbara Ertter 2005-8-15 18630 Contra Costa East side of Contra Loma Reservoir south of Antioch, marsh in SE cove. Comment
  JEPS111885  Scirpus acutus D. G. Kelch 2003-8-13 03 .106 Contra Costa Martinez Marsh 0 Comment
  SEINET3914283  Scirpus californicus K. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4955 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough, SE portion of Bethel Slough.; 0 610 Comment
  UC1618393  Scirpus cernuus Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10713 Contra Costa Browns Island n of Pittsburg (near confluence of Sacramento and San Joaquin Rivers, opposite Pittsburg Marina, (Botany Cove)); Browns Island Comment
  CDA32272  Scirpus maritimus G. F. Hrusa, D. Crowe 1998-5-8 14366 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg. Comment
  JEPS111887  Scirpus microcarpus D. G. Kelch 2003-8-13 03 .137 Contra Costa Pinole Creek 68 Comment
  JEPS116695  Scribneria bolanderi David Gowen 2006-5-19 580 Contra Costa Mount Diablo; Knobcone Point Rd. east of powerline, near unnamed dirt road west of Cave Point. Comment
  JEPS116725  Scribneria bolanderi David Gowen 2006-4-22 545 Contra Costa Los Vaqueros Watershed. Chaparral area (Mallory Ridge?) just southeast of Morgan Territory Reg. Preserve. Comment
  UC1301209  Scrophularia californica Helen K. Sharsmith 1962-4-18 4948 Contra Costa vicinity Martinez (near McEwen Rd) 106 Comment
  UC1606441  Scutellaria californica Barbara Ertter 1993-6-25 11905 Contra Costa 1/4 mi s of Tilden miniature steam trains (head of Siesta Valley, Skyline Trail); Oakland-Berkeley Hills, Skyline Trail, Siesta Valley 457 Comment
  UC2029121  Scutellaria tuberosa Barbara Ertter with David Gowen and Mike Park 2004-4-13 18352 Contra Costa Black Diamond Mines Regional Park south of Pittsburg, trail system in chaparral/woodland S of Somersville townsite. Comment
  SEINET3153355  Scutellaria tuberosa L. S. Rose 1940-4-30 40250 Contra Costa Marsh Creek, 4 mi. E of Clayton 91 Comment
  CAS-BOT-BC417826  Sedella pentandra John Thomas Howell 1941-4-6 16182 Contra Costa Near Deer Flat, Mt. Diablo Comment
  OBI75155  Senecio aronicoides David J. Keil 2011-5-29 31036 Contra Costa Mount Diablo State Park. Vicinity of Juniper Campground 900 Comment
  UCD102385  Senecio aronicoides Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. North Peak Road to North Peak. 890 Comment
  JEPS79322  Senecio flaccidus var. douglasii Edward Lee with Annetta Carter 1935-8-17 1634 Contra Costa Antioch Comment
  JEPS111534  Senecio glomeratus D. G. Kelch 2005-5-5 05 .218 Contra Costa Point Pinole - Giant Marsh Giant Salt Marsh 3 Comment
  JEPS37435  Senecio sylvaticus W. L. Jepson 1943-4-24 20762 Contra Costa vicinity San Francisco Bay; Oakland Hills, Moraga Ridge Comment
  CDA9545  Senecio vulgaris D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .224 Contra Costa Byron Airport. Comment
  CAS-BOT-BC364552  Senecio vulgaris Alice Eastwood 1923-5-4 11725 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC364553  Senecio vulgaris Ira L. Wiggins 1930-4-18 4597 Contra Costa Levee, n. end of Jersey Island Comment
  CAS-BOT-BC364554  Senecio vulgaris Walter Knight 1965-3-1 911 Contra Costa Antioch dunes Comment
  CAS-BOT-BC80263  Sequoia sempervirens Paul F. Covel 1938-2-20 s.n. Contra Costa Pinehurst Comment
  CDA33908  Sesbania punicea Guise/Duarte 2008-9-17 PDR# 1454087 Contra Costa Concord; East Olivera Rd., 1/4 mile north of Salvio St. 0 Comment
  SEINET3840815  Sesuvium verrucosum Unknown 2006-7-14 6 .329 Contra Costa East of Martinez, Along Marine Vista avenue immediately west of Pacheco Slough 1 Comment
  JEPS25157  Sidalcea malviflora subsp. laciniata G. Thomas Robbins with John Weiler 1959-5-23 4028 Contra Costa slopes on the w side Brooks Island (Richmond); San Francisco Bay, Richmond Comment
  UC1046442  Sidalcea malviflora subsp. laciniata Alex D. Hawkes and R. Bacigalupi 1951-4-21 4771 Contra Costa meadow near Walnut Creek; Meadow near Walnut Creek Comment
  CAS-BOT-BC384441  Silene antirrhina Kellogg No date on label s.n. Contra Costa Mt Diablo Comment
  UC691376  Silybum marianum Mary L. Bowerman 1930-6-3 233 Contra Costa West Road 1.9 mi from entrance Mount Diablo (= North Road); Mount Diablo Comment
  CAS-BOT-BC74934  Sinapis arvensis Ira L. Wiggins 1930-4-18 4611 Contra Costa Jersey Island. Comment
  CAS-BOT-BC74935  Sinapis arvensis Ira L. Wiggins 1930-4-18 4611 Contra Costa Jersey Island. Comment
  UC691260  Sinapis arvensis Mary L. Bowerman 1932-3-6 1106 Contra Costa immediately n of Blackhawk Ranch (Mount Diablo, Sycamore Canyon); Mount Diablo, Sycamore Canyon Comment
  UC2028577  Sinapis arvensis Barbara Ertter, Holly Forbes 1997-4-20 15548 Contra Costa North base of Mount Diablo, trail to Back Creek from Mitchell Canyon trailhead. Comment
  UCD115408  Sinapis arvensis Morris Halperin 1929-4-21 s.n. Contra Costa Franklin Canon. Comment
  UC691256  Sisymbrium officinale Mary L. Bowerman 1935-5-16 2987 Contra Costa Mount Diablo, Russelman Park Russelman Park; Mount Diablo, Russelman Park 381 Comment
  OBI70547  Sisymbrium orientale D. G. Kelch 2008-3-30 8 .027 Contra Costa Carquinez Strait: Crockets under Zampa (Carquinez) bridge 14 Comment
  JEPS75489  Sisyrinchium bellum P. F. Yorks 1974-4-28 139 Contra Costa 1.5 km s of Bear Creek Road (on Hampton Road, n of Briones Reservoir); Hampton Road Natural Reserve 160 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
  JEPS112504  Smilacina stellata A. G. Murdock 2004-4-30 246 Contra Costa Vaca Canyon 165 Comment
  UC691761  Solanum americanum Mary L. Bowerman 1931-8-29 1029 Contra Costa Mount Diablo, Sheep Camp Spring, by west road Sheep Camp Spring; Mount Diablo, Sheep Camp Spring Comment
  CDA34360  Solanum rostratum E. Finley 1986-8-26 s.n. Contra Costa Lake Cascade, Orinda. 0 Comment
  CDA5987  Solanum rostratum J. Moon 1959-7-3 Contra Costa Macdonald Avenue and railroad yard, Richmond. 0 Comment
  UC691760  Solanum umbelliferum Mary L. Bowerman 1931-3-7 553 Contra Costa Mount Diablo, Upper end of South Road Mount Diablo; , South Road Comment
  UC26241  Solanum umbelliferum unknown 1900-3-26 Contra Costa Oakley Comment
  CDA22279  Soleirolia soleirolii D. G. Kelch, A. G. Murdock 2005-5-23 5 .377 Contra Costa Carquinez Strait Region; Crockett - Crolona Heights. 6th Street at Lillian Street, Crockett. Comment
  JEPS100171  Solidago velutina subsp. californica A. Langston 2003-6-19 AL 47 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1199320  Solidago velutina subsp. californica Joseph P. Tracy 1932-9-10 10788 Contra Costa e Pinole (head of Franklin Canyon); North Coast Ranges, head of Franklin Canyon 152 Comment
  UC691791  Sonchus asper Mary L. Bowerman 1938-5-28 3642 Contra Costa North Road 6.5 mi from North Gate (Mount Diablo on bank by roadside (where Boulevard Spring used to be)); Mount Diablo Comment
  JEPS100169  Sonchus asper subsp. asper G. Smick 2003-5-8 GAS 182 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC407040  Sonchus oleraceus Ira L. Wiggins 1930-4-18 4608 Contra Costa Jersey Island Comment
  UC691439  Sonchus oleraceus Mary L. Bowerman 1932-4-27 1369 Contra Costa w facing bank of ridge w Riggs Canyon (Oyster Ridge, Mount Diablo); Mount Diablo, s face Oyster Ridge Comment
  UC691790  Sonchus oleraceus Mary L. Bowerman 1935-4-12 2813 Contra Costa North Road Mount Diablo (Mount Diablo) 198 Comment
  RSA720843  Spartina densiflora Barbara Ertter, Richard K. Rabeler 1994-6-18 12835 Contra Costa Point Pinole Regional Shoreline at north end of Richmond, beach on north side Whittell Marsh Comment
  CAS-BOT-BC236609  Spartina foliosa Evelina Cannon 1900-9-17 s.n. Contra Costa Giant Station Comment
  UCD99169  Spergula arvensis P. B. Kennedy 1914-3-15 4658 Contra Costa Sunset Cemetary. Comment
  SEINET8728586 Image available Spergularia macrotheca Leo Koch 1940-1 1001 Contra Costa Two miles south of San Rafael ferry dock Comment
  NY482309  Spergularia macrotheca var. longistyla B. J. Ertter 1989-4-5 8113 Contra Costa Alkali sink W and adjacent to Clifton Court Forebay, ca 15 air miles SW of Stockton, near sea level Comment
  CDA15279  Spergularia marina G. F. Hrusa, D. Crowe, R. York 1998-7-17 14717 Contra Costa Sacramento Delta; E end of Dow Chemical property at Pittsburg. Comment
  CDA24134  Spergularia marina D. G. Kelch 2006-7-14 6 .328 Contra Costa Carquinez Strait; Along Marine Vista Ave immmediately west of Pacheco Slough. East of Martinez. Comment
  JEPS111780  Spergularia marina A. G. Murdock 2004-6-4 319 Contra Costa Pacheco Marsh Salt marsh NE of Waterbird 5 Comment
  UC2027786  Spergularia marina Barbara Ertter with John Ginochio and Mary Bowerman 2001-5-8 17630 Contra Costa Northwest flank of Mount Diablo, tributary of Galindo Creek on south side of knoll SW of Mount Zion. Comment
  CAS-BOT-BC390536  Spergularia media Lewis S. Rose 1941-3-17 41034 Contra Costa 3 mi. s. of Byron 6 Comment
  POM89186  Spergularia salina var. tenuis Katherine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  CDA29000  Stachys ajugoides var. rigida D. G. Kelch 2006-5-7 6 .16 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  JEPS112462  Stachys ajugoides var. rigida D. G. Kelch 2004-4-11 04 .57 Contra Costa Crockett - 5th St. Prairie 85 Comment
  UC1948946  Stachys ajugoides var. rigida William J. Ferlatte, L. Maynard Moe 1970-4-27 1224 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC903066  Stachys ajugoides var. rigida Ethel Crum 1932-10-16 1471 Contra Costa 3 mi nw San Ramon; San Ramon Valley 143 Comment
  JEPS99581  Stachys pycnantha Mary Bowerman 1993-10-22 Contra Costa Mount Diablo, Pine Pond. Comment
  UC2055618  Stachys pycnantha Joseph Andorfer Ewan 1933-10-15 8035 Contra Costa SW slope Mt. Diablo. 1066 Comment
  UC2055622  Stachys pycnantha Joseph Andorfer Ewan 1933-10-15 8035 Contra Costa SW slope Mt. Diablo. 1066 Comment
  UC1795669  Stachys pycnantha Barbara Ertter, Kristin Ertter 1995-7-11 14484 Contra Costa West side of Mt Diablo SW of Walnut Creek. 182 Comment
  UCD15026  Stachys rigida Jennifer Roth 1979-4-29 27 Contra Costa Clayton, CA, Russleman Park Road off Marsh Creek Road, Concord Mt. Diablo Trail Ride Assoc. grounds; 365 Comment
  RSA721866  Stachys rigida subsp. quercetorum Barbara Ertter, Brad Olson 1994-5-7 12756 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge, edge of San Francisco Bay. Comment
  UC407394  Stellaria media Ira L. Wiggins 1930-4-18 4598 Contra Costa n end Jersey Island Comment
  RSA0027640  Stellaria media subsp. pallida Barbara Ertter, Tony Morosco 1998-4-12 16015 Contra Costa Mount Olympia on north side of Mount Diablo. 884 Comment
  UC1328148  Stellaria nitens Olive Dyer 1937-4-18 290 Contra Costa abandoned road up Madrone Canyon tributary (Wildcat Canyon); Wildcat Canyon Comment
  UC2027725  Stellaria pallida Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15508 a Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  SEINET238945 Image available Stenotaphrum secundatum Beecher Crampton 1966-10-18 7817 Contra Costa Kensington Berkeley Hills Blake Garden UC Berkeley Department of landscape architecture. Comment
  RSA0027412  Stenotaphrum secundatum Barbara Ertter, Richard K. Rabeler, Tony Morosco 1997-6-10 15669 Contra Costa Martinez Regional Shoreline, south edge of Carquinez Strait. On path to bridge. Comment
  CDA144  Stephanomeria exigua D. G. Kelch, D. A. Weinstein 2007-8-26 7 .553 Contra Costa Carquinez Strait; Ozol Rock, W Martinez. Comment
  CAS-BOT-BC375767  Stephanomeria virgata Lewis S. Rose 1938-10-28 38308 Contra Costa Marsh Creek, 6 mi. e. of Clayton 152 Comment
  UCD150892  Stephanomeria virgata James A. Neilson Jr.; Samuel A Bamberg 1975-10-22 3492 Contra Costa Walnut Creek drainage at State Highway 4. Elevation estimated using Google Earth by label maker. 1 Comment
  CDA22494  Stephanomeria virgata subsp. pleurocarpa D. G. Kelch, Mike Park 2008-9-1 8 .289 Contra Costa Carquinez Strait; Ozol Rock W of Martinez. Comment
  JEPS75541  Stephanomeria virgata subsp. pleurocarpa P. F. Yorks 1974-8-10 365 Contra Costa ca 1.7 km s Bear Creek Road (n of Briones Reservoir, on Hampton Road in Hampton Road Natural Reserve); Hampton Road Natural Reserve 180 Comment
  UC914273  Stephanomeria virgata subsp. pleurocarpa Verne Grant and Alva Grant 1946-9-29 7878 Contra Costa e of Redwood Peak 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
  UC2028477  Stipa lepida Barbara Ertter with Richard K. Brummitt 1998-5-6 16104 Contra Costa Point San Pablo west of Richmond, crest of road to yacht harbor Comment
  UC2028379  Stipa pulchra Barbara Ertter 1998-6-20 16243 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo,below picnic ground at Old Borges Ranch Comment
  SEINET10926660  Stipa pulchra Frank W. Gould 1941-4-20 Gould 1281 Contra Costa Coastal bluffs near Richmond, associated with Melica californica. Comment
  UC691145  Streptanthus albidus subsp. peramoenus Mary L. Bowerman 1935-6-8 3123 Contra Costa North Road 2 mi from North Gate (w of chaparral); Mount Diablo Comment
  CAS-BOT-BC87102  Streptanthus glandulosus subsp. glandulosus Mary L. Bowerman 1935-6-15 3136 Contra Costa Mount Diablo. Eagle Point ridge east of 2632. 762 Comment
  UC10875  Streptanthus glandulosus subsp. glandulosus Geological Survey 1862-6-16 1268 Contra Costa Mt. Diablo range 975 Comment
  UC2028978  Streptanthus glandulosus subsp. glandulosus Barbara Ertter 2000-5-14 17020 Contra Costa Donner Basin on north side of Mount Diablo, switchbacks on Cardinet Oaks Road. Comment
  CAS-BOT-BC87333  Streptanthus hispidus Lewis S. Rose 1935-5-16 35171 Contra Costa Mount Diablo, summit. Comment
  CAS-BOT-BC87336  Streptanthus hispidus E. W. Hicks 1917-3-25 114 Contra Costa West shoulder of Mount Diablo. 762 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-BC87343  Streptanthus hispidus L. R. Abrams 1921-5-25 8059 Contra Costa Summit Mount Diablo. Comment
  CAS-BOT-BC87346  Streptanthus hispidus Alice Eastwood 1915-5-30 4526 Contra Costa Mount Diablo. Comment
  RSA66600  Streptanthus hispidus Annetta Carter 1935-6-1 880 Contra Costa NW slope of Mount Diablo near summit; 1067 Comment
  SBBG72132  Streptanthus hispidus unknown 1895-1 Contra Costa Mt Diablo Comment
  UC402744  Streptanthus hispidus E. W. Hicks 1917-3-25 114 Contra Costa s-facing slope of w shoulder Mt. Diablo 762 Comment
  UC956588  Streptanthus hispidus Freed W. Hoffman 1949-4-17 2765 Contra Costa Deer Flat Trail a short distance n Juniper Camp 838 Comment
  JEPS116497  Stylocline gnaphaloides J. Greenhouse with John Game 2008-5-26 5128 Contra Costa Lime Ridge Open Space, Paradise Canyon Trail above subdivision Comment
  CAS-BOT-BC375966  Stylocline gnaphaloides Brandegee No date on label s.n. Contra Costa Antioch Comment
  CAS-BOT-BC422921  Stylomecon heterophylla R. F. Hoover 1968-5-16 11091 Contra Costa Upper Marsh Creek. Comment
  JEPS51558  Stylomecon heterophylla W. L. Jepson 1918-6-3 7589 Contra Costa Donner Canyon Mt. Diablo; , Donner Canyon 685 Comment
  RSA135424  Stylomecon heterophylla Volney Rattan 1883-04 s.n. Contra Costa Martinez. Comment
  SEINET3160771  Stylomecon heterophylla L. S. Rose 1940-4-30 40247 Contra Costa Marsh Creek, 6 mi. e. of Clayton 46 Comment
  UC50115  Stylomecon heterophylla J. Burtt Davy April 1897 Contra Costa Point Isabel Comment
  UC635478  Stylomecon heterophylla H. L. Mason 1928-4-1 4271 Contra Costa hills n Mount Diablo (canyon back of Pittsburg); hills n of Mount Diablo Comment
  RSA66297  Stylomecon heterophylla Lincoln Constance, J. L. Morrison 1938-4-5 2193 Contra Costa NW base of Mount Diablo, 6 miles SE of Walnut Creek, Coast Ranges Comment
  UC117985  Stylomecon heterophylla Michener and Bioletti 1892-4-10 841 a Contra Costa Byron [Alcalde] pencilled in Byron; Byron [Alcalde] pencilled in Comment
  UC407387  Suaeda moquinii Ira L. Wiggins 1930-4-17 4585 Contra Costa Byron Hot Springs Comment
  SEINET4172257  Suaeda nigra J. B. Davy s.n. Contra Costa Mount Diablo, Sivermore Pass Comment
  CAS-BOT-BC269560  Symphoricarpos albus var. laevigatus E. E. Stanford 1930-5-24 1509 Contra Costa Marsh Creek Canyon Comment
  OBI25834  Symphoricarpos albus var. laevigatus John Osborne 1970-11-21 12 Contra Costa 3173 Somerset Dr., Lafayette 76 Comment
  JEPS13647  Symphoricarpos mollis Mary L. Bowerman 1933-5-21 2159 Contra Costa s from Curry Canyon (Sycamore Canyon, ridge between two main forks); Mount Diablo, Sycamore Canyon 426 Comment
  JEPS13659  Symphoricarpos mollis H. H. Haworth 1917-5-3 Contra Costa Redwood Peak 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-BC97699  Symphyotrichum chilense Elizabeth McClintock; Stephen Rae 1978-8-3 s.n. Contra Costa Suisun Bay, Antioch Comment
  UC1594169  Symphyotrichum lentum Jerry Powell 1991-8-15 1613 Contra Costa Antioch National Wildlife Refuge Comment
  CAS-BOT-BC98040  Symphyotrichum lentum John Thomas Howell 1978-9-5 53357 Contra Costa Pittsburg Marina Comment
  UCD136614  Symphyotrichum lentum Ann F. Johnson 1978-6-25 AN- 33 Contra Costa Edge of the San Joaquin River at the Antioch Dunes on Pacific Gas and Electric Co. site. Comment
  UCD159501  Symphyotrichum subulatum var. parviflorum D. S. Park 2010-9-11 250 -2 Contra Costa Waterfront Rd. Growing along roadside. Disturbed. Wet. 5 Comment
  UC1301106  Taraxia ovata Helen K. Sharsmith 1962-4-18 4957 Contra Costa Reliez Valley Rd. San Francisco Bay Region 152 Comment
  UCD128114  Tauschia hartwegii Morris Halperin 1929-4-21 s.n. Contra Costa Moraga Valley. Comment
  UC1050827  Thalictrum dipterocarpum N. Floy Bracelin 1942-6-29 2129 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California 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-BC88262  Thysanocarpus curvipes Mrs. E. C. Wright 1917-6-1 s.n. Contra Costa Mount Diablo. Comment
  POM203036  Thysanocarpus curvipes var. curvipes J. T. Howell 1934-4-8 11822 Contra Costa Marsh Creek Road, SW of Brentwood. Comment
  RSA0039372  Thysanocarpus curvipes var. curvipes Harley P. Chandler 1901-4-5 940 Contra Costa Mt. Diablo, Pine Canyon. Comment
  CAS-BOT-BC66959  Thysanocarpus laciniatus J. W. Congdon 1896-5-3 s.n. Contra Costa Mount Diablo. Comment
  SEINET3166335  Thysanocarpus laciniatus P. J. Alexander, C. D. Bailey 2009-3-30 968 Contra Costa Mount Diablo State Park, 0.3 miles east of the summit of Mt. Diablo on the trail to North Peak, 8.7 miles ESE of central Walnut Creek. 1006 Comment
  JEPS108219  Thysanocarpus radians David Gowen 2005-4-30 272 Contra Costa Morgan Territory Regional Preserve. Just east and outside the park along Manzanita Trail. Growing on very rocky east facing slope. Comment
  JEPS9890  Tonella tenella Mary L. Bowerman 1935-5-18 3023 Contra Costa Mount Diablo; nw-facing slope across the road from, and a little e of, the parking area 1066 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
  JEPS63916  Toxicodendron diversilobum W. L. Jepson 1931-4-5 15716 Contra Costa Nortonville n.e. Contra Costa Co., Nortonville Comment
  RSA610776  Toxicodendron diversilobum Joseph A. Ewan 1936-7-5 9738 Contra Costa Wildcat Creek Comment
  SEINET5577082  Toxicodendron diversilobum H. S. Gentry 1931-1 56 Contra Costa Collected on Mt. Diablo near Buckle Point. Comment
  UC1619980  Tragopogon porrifolius Barbara Ertter 1991-5-12 9812 Contra Costa s.w. corner El Cerrito (along old R.R. right-of-way between bay & salicornia marsh, Point Isabel Regional Shoreline, on San Francisco Bay); San Francisco Bay, Point Isabel Regional Shoreline Comment
  JEPS111933  Tribulus terrestris Dean G. Kelch and Andrew G. Murdock 2004-5-28 AGM 305 Contra Costa Luzon Comment
  SEINET13948212 Image available Trichostema lanceolatum Lewis S. Rose 1953-1 53095 Contra Costa Mt. Diablo, W slope; 1600 ft alt. 488 Comment
  UC1795842  Trichostema lanceolatum Barbara Ertter, M. L. Bowerman, L. Schultheis, Kevin Hintsa 1995-10-22 14530 Contra Costa Three Springs Trail on northeast side of Mt. Diablo, south of crest of Marsh Creek Rd., dried roadside pond, clay. Comment
  JEPS112044  Trientalis latifolia A. G. Murdock 2004-4-30 264 Contra Costa Vaca Canyon 165 Comment
  UC555617  Trifolium albopurpureum var. albopurpureum H. L. Mason 1929-5-7 5261 Contra Costa Moraga Ridge Comment
  UC16500  Trifolium albopurpureum var. dichotomum W. H. Brewer 1862-5-16 1114 Contra Costa n Kirker's Pass Comment
  UC16612  Trifolium albopurpureum var. dichotomum Jos. Burtt Davy 1901-4-21 7048 Contra Costa Wildcat Canyon Comment
  CAS-BOT-BC5352  Trifolium bifidum William Henry Brewer 1862-5-29 1184 Contra Costa Marsh's Ranch, between Monte Diablo and the San Joaquin. Comment
  UC764663  Trifolium bifidum var. bifidum R. F. Hoover 1938-5-4 3352 Contra Costa e Tassajero Creek (peak) Comment
  CDA4301  Trifolium campestre D. G. Kelch, A. G. Murdock 2005-5-6 5 .22 Contra Costa Carquinez Strait Region; Franklin Canyon. East of Christie Road. South of Route 4. Comment
  UC1795879  Trifolium campestre Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14640 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
  UC1607585  Trifolium ciliolatum Barbara Ertter 1991-6-1 10077 Contra Costa w Danville (in hills at n end of Rocky Ridge Trail); Las Trampas Regional Wilderness 548 Comment
  UC517489  Trifolium ciliolatum John Thomas Howell 1933-5-14 11245 Contra Costa e St. Mary's College (hills) Comment
  UC692251  Trifolium ciliolatum Mary L. Bowerman 1932-4-27 1363 Contra Costa w Riggs Canyon (Oyster Ridge, s face); Mount Diablo 762 Comment
  UC165575  Trifolium depauperatum var. amplectens J. Burtt Davy Apr 7-8 1895 944 Contra Costa Antioch Comment
  POM313531  Trifolium depauperatum var. amplectens P. B. Kennedy 1929-4-25 10245 Contra Costa Briones Valley, Marsh Creek road. Comment
  UC2028951  Trifolium depauperatum var. amplectens Barbara Ertter 2003-3-28 18121 Contra Costa Round Valley Regional Preserve, Fox Trail ca 1/8 mile west of junction with valley trail. Comment
  UC2070477  Trifolium depauperatum var. amplectens Barbara Ertter 2003-3-28 18121 Contra Costa Round Valley Regional Preserve, Fox Trail ca 1/8 mile west of junction with valley trail. Comment
  JEPS65840  Trifolium depauperatum var. depauperatum Edw. L. Greene 1889-3-23 Contra Costa Byron Springs Comment
  UC630935  Trifolium depauperatum var. depauperatum P. B. Kennedy 1928-4-19 10049 a Contra Costa Byron Hot Springs, near [golf links] Byron Hot Springs Comment
  UCSC011138  Trifolium depauperatum var. laciniatum R. Morgan 2015-4-11 6739 Contra Costa Byron Comment
  UC1543246  Trifolium depauperatum var. truncatum Donald G. Nelson 1937-3-30 476 Contra Costa a few mi s Byron (on rr tracks paralleling the hwy, on rd ro Tracy) Comment
  UC555355  Trifolium depauperatum var. truncatum H. L. Mason 1929-3-15 5061 Contra Costa ca 5 mi from Brentwood (Marsh Creek Rd) Comment
  UCD84949  Trifolium depauperatum var. truncatum Chuck Hughes 2010-3-29 221 Contra Costa About 0.4 mile southeast of Vasco Road. 124 Comment
  POM18876  Trifolium depauperatum var. truncatum Edward L. Greene 1903-4-27 2863 Contra Costa Byron Comment
  UC1795835  Trifolium depauperatum var. truncatum Barbara Ertter, Gary Schoolcraft 1996-4-7 14571 Contra Costa Point San Pablo in west Richmond, crest of road to yacht harbor, coastal grassland along ridge, scraped roadbed to tower. Comment
  UC2028081  Trifolium depauperatum var. truncatum Barbara Ertter, Tony Morosco 1998-4-12 15988 Contra Costa Base of Mount Olympia on north side of Mount Diablo, open flat below quarry NE of Olympia Trail. Comment
  JEPS100102  Trifolium dubium G. Smick 2003-5-8 GAS 178 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CDA4276  Trifolium fragiferum D. G. Kelch, A. G. Murdock 2005-6-24 5 .389 Contra Costa Carquinez Strait Region; Franklin Canyon at McEwen Road. Comment
  JEPS65882  Trifolium fucatum W. L. Jepson 1923-4-22 9857 Contra Costa Mt. Diablo Comment
  UC692674  Trifolium fucatum Mary L. Bowerman 1935-5-1 2940 Contra Costa 2.1 mi from North Gate (North Rd, just below rd by a hut); Mount Diablo 182 Comment
  SEINET12147993  Trifolium fucatum Unknown 1878-1 s.n. Contra Costa Near Mt. Diablo Comment
  UC16557  Trifolium gracilentum W. H. Brewer 1862-5-19 1116 Contra Costa n Kirker's Pass Comment
  UC517488  Trifolium gracilentum John Thomas Howell 1933-5-14 11249 Contra Costa e St. Mary's College (hills) Comment
  UC555592  Trifolium gracilentum H. L. Mason 1928-4-13 4301 Contra Costa Richmond waterfront Comment
  UC692683  Trifolium gracilentum Mary L. Bowerman 1933-5-9 2046 Contra Costa Stage Rd Mount Diablo 853 Comment
  UC2027844  Trifolium gracilentum Barbara Ertter with Dan Norris 2001-4-15 17610 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). Comment
  CHSC116653  Trifolium hirtum Lowell Ahart; Josephine Guardino 2016-4-19 20759 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Field on the west side 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 (air) southwest of Stockton. 160 Comment
  UC2028325  Trifolium incarnatum Barbara Ertter with Richard K. Brummitt 1998-5-13 16142 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, road from Somersville Road to south leg of Loughler Loop Trail. Comment
  SEINET4178748 Image available Trifolium majus A. A. Heller 1938-4-9 15017 Contra Costa 3 mi. S. W. of Antioch Comment
  UC692250  Trifolium microcephalum Mary L. Bowerman 1935-4-12 2814 Contra Costa 2 mi from entrance (= Northgate) (w rd (=n rd)); Mount Diablo 259 Comment
  JEPS107129  Trifolium microdon Barbara Ertter, Lisa Schultheis 1995-4-27 14008 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; northwest side of open grassy ridge at end of Arbolado Dr. 121 Comment
  JEPS65989  Trifolium microdon W. L. Jepson May 23 1891-May 24 1891 13661 Contra Costa Mt. Diablo Comment
  POM301852  Trifolium microdon Mary L. Bowerman 1935-4-19 2870 Contra Costa Road about 7 miles from North Gate, ridge west of the power poles, above the road junction. 701 Comment
  UC2029064  Trifolium obtusiflorum Barbara Ertter 2000-7-29 17445 Contra Costa Donner Basin on north side of Mount Diablo, Falls Trail at east fork of Donner Creek (between main fork and Wild Oat Canyon), trickle of surface water 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
  JEPS100109  Trifolium oliganthum G. Smick 2003-3-25 GAS 85 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2029059  Trifolium subterraneum Barbara Ertter with Kevin Hintsa et al. 2003-4-20 18159 Contra Costa Secret Trail at head of Pine Canyon, west side of Mount Diablo Comment
  UC16730  Trifolium willdenovii J. Burtt Davy 1895-4-7 991 Contra Costa Antioch Comment
  UC16757  Trifolium willdenovii W. H. Brewer 1862-5-12 1076 Contra Costa Mt. Diablo Comment
  UC55884  Trifolium willdenovii H. M. Hall 1901-3-17 1656 Contra Costa Point Richmond Canyon Comment
  UC55885  Trifolium willdenovii H. M. Hall 1901-3-22 1705 Contra Costa Martinez 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
  POM252940  Trifolium willdenovii A. A. Heller 1938-4-9 15017 Contra Costa 3 miles southwest of Antioch. Comment
  UCD35901  Trifolium willdenovii Beecher Crampton 1966-4-26 7665 Contra Costa ca. 2.5 miles west of Martinez on the road to Crockett. Comment
  JEPS37726  Trifolium wormskioldii W. L. Jepson 1922-5-26 9671 Contra Costa North Berkeley Hills Comment
  CAS-BOT-BC451764  Triglochin maritima Walter Knight; Joanne Dean No date on label 3131 Contra Costa Browns Island. Comment
  CAS-BOT-BC133382  Trillium ovatum P. Raven 1949-3-26 193 Contra Costa Redwood [Canon] Canyon Comment
  UCR139223  Triphysaria eriantha Joseph A. Ewan 1934-4-8 8762 Contra Costa San Francisco Bay Region, Head of Hog Canyon, S slope of Mount Diablo 640 Comment
  UC103158  Triphysaria eriantha subsp. eriantha C. F. Baker 1903-4-27 2792 Contra Costa Byron Comment
  UC1301191  Triphysaria eriantha subsp. eriantha Helen K. Sharsmith 1963-4-7 5288 Contra Costa e side Kirker Pass road w Antioch (San Francisco Bay Region); , Kirker Pass Road 152 Comment
  SBBG26806  Triphysaria eriantha subsp. eriantha J. A. Ewan 1934-4-8 8762 Contra Costa head of Hog Cyn, S slope of Mt Diablo 640 Comment
  CDA41895  Triphysaria versicolor subsp. faucibarbata D. G. Kelch 2005-5-5 5 .206 Contra Costa Carquinez Strait Region; Point Pinole - Giant Marsh. Giant Salt Marsh. 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
  UC1948966  Triteleia laxa William J. Ferlatte, L. Maynard Moe 1970-4-27 1229 Contra Costa San Francisco Bay: Red Rock Island Comment
  CAS-BOT-BC526327  Triteleia laxa Barrett Anderson 1987-4-30 3501 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road 125 Comment
  JEPS99563  Triticum aestivum Mary Bowerman 1978-5-21 Contra Costa Mount Diablo, E side Hetherington Loop. Comment
  SEINET3404423 Image available Tropidocarpum gracile Lewis S. Rose 1934-3-21 34066 Contra Costa Clayton, 6 miles East of Clayton Comment
  UC136962  Tropidocarpum gracile K. Brandegee April, 1889 Contra Costa Antioch Comment
  POM204031  Tropidocarpum gracile L. S. Rose 1934-3-21 34066 Contra Costa 6 mi E of Clayton. Comment
  UC1241758  Typha domingensis Malcolm A. Nobs 1950-8-20 Contra Costa Nortonville Comment
  UCD94828  Typha domingensis Malcolm A. Nobs 1950-8-20 s.n. Contra Costa Alkaline seep area, water ca. 2 inches deep, Nortonville. Comment
  JEPS111912  Typha latifolia Dean G. Kelch and Andrew G. Murdock 2004-5-28 AGM 282 Contra Costa Refugio Valley. Comment
  UC2031410  Ulmus minor Barbara Ertter 1993-4-2 11479 Contra Costa Carquinez Regional Park below Vista Road west of Crockett Comment
  CAS-BOT-BC91093  Umbellularia californica Mary L. Bowerman 1931-2-8 514 Contra Costa Mount Diablo. Summit. Comment
  CDA24511  Umbellularia californica D. G. Kelch, A. G. Murdock 2003-2-7 03 .037.B Contra Costa Carquinez Strait Region; Franklin Canyon. Comment
  CHSC22748  Umbellularia californica Robert A. Schlising 1962-2-21 2078 Contra Costa Berkeley-Oakland Hills of westernmost part of county. Comment
  UC1126325  Umbellularia californica H. S. Yates 1936-3-14 5362 Contra Costa Marsh Creek 381 Comment
  UC1177379  Umbellularia californica Peter H. Raven 1950-2-19 1353 Contra Costa above Canyon Grocery at ne end of Moraga Ridge Moraga Ridge 213 Comment
  SEINET12093234  Umbellularia californica Unknown 1983-1 4965 Contra Costa Castro Ranch Road between Hillside St. and Alhambra Valley Road. Plant survey for Douglas Carter Comment
  SEINET12102545  Umbellularia californica M. T. Doutt 1930-1 97 Contra Costa Marsh Creek Comment
  JEPS35668  Uropappus lindleyi W. L. Jepson 1931-4-5 15717 Contra Costa Nortonville 457 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
  CAS-BOT-BC199242  Vaccinium ovatum W. W. Carruth 1901-5-1 s.n. Contra Costa Redwood Canon [Canyon] Comment
  CAS-BOT-BC199243  Vaccinium ovatum H. E. McMinn 1925-1-1 s.n. Contra Costa Head of San Leandro Creek Comment
  CAS-BOT-BC199244  Vaccinium ovatum John Thomas Howell 1925-9-12 1435 Contra Costa Oakland Hills at head of San Leandro Canyon Comment
  UC1050825  Verbascum N. Floy Bracelin 1943-6-20 1346 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1714515  Verbascum blattaria unknown July 1892 Contra Costa Redwood Peak Comment
  UC454110  Verbena hastata I. J. Condit 1908-8-20 Contra Costa Oakley Comment
  POM312406  Verbena hastata Malcolm A. Nobs, S. Galen Smith 1949-7-8 942 Contra Costa Otto's Black Bass Resort, 4 miles north of Kingston. Comment
  UC1613942  Verbena lasiostachys var. scabrida Charles M. Belshaw 1935-6-24 1023 Contra Costa Sobrante Hills Comment
  UC691578  Verbena lasiostachys var. scabrida Mary L. Bowerman 1930-10-4 481 Contra Costa Maple Spring Comment
  UC691756  Verbena lasiostachys var. scabrida Mary L. Bowerman 1930-9-27 464 Contra Costa West base spring (2 miles by road from North Gate, take trail to west; follow to fence, go through). Comment
  CDA9278  Verbena scabra D. G. Kelch 2002-7-15 2 .006 Contra Costa CA Delta; Old San Joaquin River channel, E of Brentwood. San Joaquin County border. 0 Comment
  UC691655  Veronica americana Mary L. Bowerman 1930-6-28 394 Contra Costa Mount Diablo, Lower Silver Spring Lower Silver Spring; Mount Diablo, Lower Silver Spring Comment
  UC2070533  Veronica americana Barbara Ertter with Dan Norris 2000-12-3 17555 Contra Costa West side Mount Diablo, Maple Spring on North Gate Road just south of Angel Kerley Road junction. Comment
  JEPS127090  Veronica peregrina Lowell Ahart, Josephine Guardino 2016-4-19 20781 Contra Costa 1.4 miles (air) northwest of Los Vaqueros Reservoir Marina, 1.9 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 Spring USGS 7.5' Quad. Comment
  JEPS18890  Veronica peregrina subsp. xalapensis Rimo Bacigalupi with G. Thomas Robbins 1956-3-26 5524 Contra Costa 1.2 mi n of junction with Marsh Creek Road ( just n of Briones Valley, along the Deer Valley Road, in territory just s of Antioch,); Deer Valley Road 76 Comment
  JEPS25389  Veronica peregrina subsp. xalapensis Rimo Bacigalupi with G. T. Robbins and Francia Chisaki 1959-4-14 7002 Contra Costa 2 1/2 mi se of Antioch (just e of Antioch Airport, along Lone Tree Way) 56 Comment
  CDA23061  Vicia americana D. G. Kelch, D. A. Weinstein 2008-4-25 8 .086 Contra Costa Alvarado Park (west end of Wildcat Canyon Park) on north-facing hillside above Hindu temple in mixed scrub/grassland. Comment
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Jan 7 2016
  UC2070475  Vicia americana Barbara Ertter with Linda Vorobik 2002-4-6 17825 Contra Costa South side of Mount Diablo, ridge east of Curry Point trailhead. 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
  UC16943  Vicia americana var. americana H. P. Chandler 1900-3-17 Contra Costa Wildcat Canyon; Berkeley Hills Comment
  UC1795744  Vicia benghalensis Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14220 Contra Costa Mt. Diablo southeast of Walnut Creek, roadside at Curry Point. 541 Comment
  UC1555380  Vicia sativa Jerry Powell 1988-5-18 1534 Contra Costa Point Molate Richmond (w Richmond) Comment
  JEPS99510  Vicia villosa subsp. varia Mary Bowerman 1994-4-17 Contra Costa Mount Diablo. Path (graveled road) from end of Regency Drive, Clayton. Entry to Donner Canyon. Comment
  UC19314  Viola pedunculata F. P. McLean March 1875 Contra Costa near Concord Comment
  SD48396  Viola pedunculata G. R. Campbell 1956-4-6 16 Contra Costa Between Round Top and summit, Mt. Diablo 305 Comment
  JEPS48868  Viola purpurea subsp. purpurea Elsa Kraeger 1926-3-7 Contra Costa on road e of summit of Mount Diablo Comment
  JEPS50410  Viola purpurea subsp. quercetorum Mary Bowerman 1933-5-12 Contra Costa Mount Diablo Comment
  POM300648  Viola sheltonii Mary L. Bowerman 1935-5-18 3026 Contra Costa Summit north of the large parking area. (Noted as high 3670 ft below parking area). 1052 Comment
  UC1789166  Vitis Barbara Ertter 1995-4-27 14020 Contra Costa walkway along ditch between Valley Vista and Arbolado Park, Walnut Creek, ca 300 ft; naturalized on concrete ditchbank, twigs red, flowers green, fragrant. Comment
  CAS-BOT-BC203038  Vitis californica R. Bacigalupi 1922-9-24 s.n. Contra Costa Mitchell Canyon, Mt. Diablo 213 Comment
  CAS-BOT-BC203042  Vitis californica Mary L. Bowerman 1930-6-28 382 Contra Costa Mount Diablo. Canyon Nook 670