Search Results — 2000 specimen records retrieved (1375 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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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UC1618268  Abutilon theophrasti Barbara Ertter with CNPS 1990-8-19 9622 Contra Costa E side of S end of Briones Reservoir N of Orinda, along Bear Creek trail on EBMUD land, near junction of main trail and path to Briones Overlook Staging Area 182 Comment
  UC1050374  Acacia dealbata N. Floy Bracelin 1942-7-4 2174 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC466761  Acaena pinnatifida var. californica I. J. Condit 1913-4-19 Contra Costa Richmond Annex Comment
  JEPS42648  Acer macrophyllum W. L. Jepson 1916-10-28 6853 a Contra Costa Las Trampas Creek Comment
  UC1051142  Acer macrophyllum N. Floy Bracelin 1943-7-18 2560 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC334183  Acer negundo var. californicum Annetta Carter 1926-3-27 1384 Contra Costa San Leandro Canyon; Concord USGS 152 Comment
  JEPS42724  Acer negundo var. californicum W. L. Jepson 1908-8-16 3088 Contra Costa 2 mi w Walnut Creek; w of Walnut Creek Comment
  UC1540475  Acer negundo var. californicum Annetta Carter 1937-4-4 1229 Contra Costa 2 1/2 mi n Moraga (Moraga Valley); , Creek bank, n of Moraga 182 Comment
  UC692720  Acer negundo var. interior Mary L. Bowerman 1931-10-23 1063 a Contra Costa Riggs Canyon mouth Mount Diablo, Riggs Canyon mouth (by stream-bed) 228 Comment
  CAS-BOT-BC21713  Achillea millefolium Mary L. Bowerman 1930-6-3 238 Contra Costa Mount Diablo: West road 1.9 miles from entrance Comment
  JEPS36722  Achyrachaena mollis W. L. Jepson 1923-4-22 9861 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC29883  Achyrachaena mollis Alice Eastwood 1914-1-1 s.n. Contra Costa unspecified Comment
  CAS-BOT-BC29890  Achyrachaena mollis E. M. Zeile 1909-5-19 s.n. Contra Costa Regents Park, West Berkeley Comment
  JEPS112327  Acmispon americanus Dean G. Kelch and Andrew G. Murdock 2004-7-16 04 .321 Contra Costa Martinez- South; County: Contra Costa; Pine St. Entrance Rte 4 heading west. Martinez, CA. Comment
  JEPS112328  Acmispon glaber Dean G. Kelch and Andrew G. Murdock 2004-7-16 04 .319 Contra Costa Martinez- South; County: Contra Costa; Pine St. Entrance Rte 4 heading west. Martinez, CA. Comment
  CDA20180  Acroptilon repens A. Niang 2003-7-9 PDR 1406327 Contra Costa San Francisco Bay Area; 5225 Hidorn Ranch Rd, Brentwood. 0 Comment
  JEPS99944  Adenostoma fasciculatum G. Smick 2003-5-13 GAS 190 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS112048  Adiantum jordanii D. G. Kelch 2005-1-21 05 .6 Contra Costa Crockett - West Valona Collected along railroad tracks in West Valona across from the decommissioned sewage treatment plant. On north-facing slopes with Quercus agrifolia and Heteromeles arbulifolia and Pinus pinea 8 Comment
  CAS-BOT-BC202598  Aesculus californica Miss E. Cannon 1892-6-4 s.n. Contra Costa Concord Comment
  JEPS100119  Agoseris grandiflora G. Smick 2003-4-29 GAS 151 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS36319  Agoseris grandiflora var. grandiflora W. L. Jepson 1943-6-8 20846 Contra Costa midway of ridge Moraga Ridge Comment
  UC691457  Agoseris grandiflora var. grandiflora Mary L. Bowerman 1933-5-17 2107 Contra Costa branch of Curry due s Olafson's barn; Curry River 289 Comment
  POM52175  Agoseris heterophylla C. F. Baker 1903-4-28 2831 Contra Costa Marsh Creek, Mt. Diablo. 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
  UC691795  Agoseris heterophylla var. heterophylla Mary L. Bowerman 1934-3-18 2482 Contra Costa west of, (in small open flat on the edge of Donner Canyon) Russelman Park; Donner Canyon 365 Comment
  RSA0033846  Agrostis exarata Barbara Ertter 1999-7-17 16763 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, Rifle Range Road. Comment
  RSA0029051  Agrostis exarata Barbara Ertter 1999-6-12 16711 Contra Costa Black Hawk Ridge road on south side of Mount Diablo, road crossing at confluence of NE and E forks of Sycamore Creek. 396 Comment
  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
  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
  CDA39045  Agrostis pallens D. G. Kelch 2011-6-5 11 .574 Contra Costa Carquinez Strait; South of Crockett, south of Cummings Skyway. Comment
  JEPS41061  Agrostis pallens Rimo Bacigalupi, and L. R. Heckard 1965-5-11 9084 Contra Costa sw of Richmond; San Francisco Bay, Brooks Island 30 Comment
  UC2070613  Agrostis stolonifera Barbara Ertter with Chris Thayer, Dianne Lake et al. 2001-5-26 17654 Contra Costa Stamm Unit of Antioch Dunes National Wildlife Refuge east of Antioch. Comment
  JEPS100153  Ailanthus altissima A. Langston 2003-8-26 AL 81 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1818968  Aira caryophyllea Barbara Ertter, M. L. Bowerman, L. Schultheis, Kevin Hintsa 1995-10-22 14527 Contra Costa Three Springs Trail on northeast side of Mt. Diablo, south of crest of Marsh Creek Rd. southeast of Clayton dried grasslands at base of trail. 304 Comment
  CAS-BOT-BC445378  Alisma plantago-aquatica Volney Rattan 1886-6-16 s.n. Contra Costa Walnut Creek Comment
  UCR197913  Alisma triviale Beecher Crampton 1950-6-10 589 Contra Costa 1 mile north of Richmond, along Santa Fe Railroad 15 Comment
  CDA9505  Allenrolfea occidentalis D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .232 Contra Costa Byron Airport. Comment
  NY216671  Allenrolfea occidentalis R. F. Hoover 1937-8-31 2707 Contra Costa Byron Hot Springs. Comment
  UC767621  Allenrolfea occidentalis R. F. Hoover 1937-8-31 2707 Contra Costa Byron Hot Springs Comment
  UCR52247  Allenrolfea occidentalis E. E. Stanford 1930-5-24 1520 Contra Costa Near Byron 25 Comment
  RSA411794  Allenrolfea occidentalis E. E. Stanford 1930-08 1871 Contra Costa Near Old River; near sloughs. Comment
  JEPS108218  Allium amplectens David Gowen 2005-4-30 271 Contra Costa Morgan Territory Regional Preserve. Just east and outside the park along Manzanita Trail. Growing on very rocky east facing slope. Comment
  UC13800  Allium serra Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  UC3107  Allium serra Brewer 1022 Contra Costa Walnut Creek Comment
  UC85605  Allium serra Katharine Brandegee 1907-5-5 Contra Costa bet. Antioch and Marsh Creek Comment
  CAS-BOT-BC475535  Allium serra R. Bacigalupi 1927-5-13 1570 Contra Costa Along Danville - Mt. Diablo Road near Garden of the Jungle Gods 518 Comment
  CAS-BOT-BC475539  Allium serra Reed C. Rollins 1946-3-25 3043 Contra Costa Western slope of Mount Diablo Comment
  SEINET12044784  Allium serratum J. T. Howell 1933-1 11284 Contra Costa E of St. Mary's College Comment
  UC692025  Allium unifolium Mary L. Bowerman 1932-5-6 1426 Contra Costa near road, Mitchell Canyon Mt. Diablo, Mitchell Canyon 243 Comment
  UC691631  Allophyllum divaricatum Mary L. Bowerman 1933-5-2 1941 Contra Costa below Pioneer Camp (Mt. Diablo); Mt. Diablo 762 Comment
  CAS-BOT-BC170926  Alnus rhombifolia Mary L. Bowerman 1931-10-13 1058 Contra Costa Mount Diablo. Alamo Canyon 259 Comment
  JEPS111823  Alnus rhombifolia D. G. Kelch 2005-5-13 05 .245 Contra Costa Martinez Martinez. South of oil refinery along Railroad tracks 28 Comment
  POM166519  Alnus rhombifolia W. C. Blasdale 1896-2-29 3690 Contra Costa Clayton. Comment
  UC13501  Alnus rhombifolia W. C. Blasdale 1891-3-7 Contra Costa San Pablo Comment
  CAS-BOT-BC170930  Alnus rhombifolia Walter Knight 1978-9-19 3265 Contra Costa Browns Island, Alder Point Comment
  RSA452847  Alnus rubra M. B. Dunkle 1931-7-18 2526 Contra Costa Strawberry Canyon, Berkeley. San Francisco Bay Region. Comment
  CAS-BOT-BC137970  Alopecurus saccatus John Thomas Howell 1953-4-26 28936 Contra Costa Between Byron and Byron Hot Springs. Comment
  CAS-BOT-BC137969  Alopecurus saccatus Niall McCarten; V. I. Dains 1986-6-1 03261419 Contra Costa 0.5 mile north of Balfour Road at the Deer Creek Reservori. Comment
  CDA3269  Amaranthus albus A. G. Murdock, D. G. Kelch 2004-5-28 303 Contra Costa Carquinez Strait; Luzon. Comment
  JEPS111587  Amaranthus albus A. G. Murdock 2004-5-28 303 Contra Costa Luzon Roadside 60 Comment
  UC2027978  Amaranthus blitoides Barbara Ertter with Mary Bowerman 1996-11-1 15397 a Contra Costa North base of Mount Diablo, downstream from Mitchell Canyon parking lot. Comment
  JEPS85854  Amaranthus deflexus Barbara Ertter with Elizabeth Neese 1988-10-15 7973 Contra Costa w I-580 (jct of Central Ave and Rydin Road, El Cerrito); El Cerrito Comment
  JEPS111588  Amaranthus retroflexus D. G. Kelch 2004-6-19 04 .286 Contra Costa Crockett - Edwards Canyon Edwards Creek staging area near barn. 24 Comment
  JEPS111728  Ambrosia chamissonis D. G. Kelch 2004-7-9 04 .312 Contra Costa Rodeo Shore 2 Comment
  CAS-BOT-BC55590  Ambrosia psilostachya Walter Knight 1965-9-7 1167 Contra Costa San Joaquin River at Antioch sand dunes Comment
  UC1607617  Ambrosia psilostachya Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10690 Contra Costa n. Pittsburg (near confluence of Sacramento & San Joaquin Rivers opposite Pittsburg marina, dry levee near lagoon in center of w. end of island); Browns Island Comment
  CHSC97944  Ambrosia trifida J. Clark; C. Beutler 1976-9-1 Contra Costa Residential property, 2161 Youngs Court, Walnut Creek. Comment
  CDA6723  Ambrosia trifida J. Clark, C. Beutler 1976-9-1 Contra Costa 2161 Youngs Court, Walnut Creek. 0 Comment
  JEPS45147  Amelanchier utahensis W. L. Jepson Oct 1909 3499 Contra Costa n end Moraga Ridge; Oakland Hills Comment
  UCR12098  Amsinckia Coleta A. Lawler 1964-5-8 58 Contra Costa San Francisco Bay Region, Hampton Road, 3 .7 mi south of junction with Alhambra Valley Road; c. 10 miles northwest of Lafayette 46 Comment
  CAS-BOT-BC222222  Amsinckia John Thomas Howell 1934-4-8 11813 Contra Costa 7 miles from Clayton on road to Livermore Comment
  UCD32491  Amsinckia Beecher Crampton 1950-4-22 522 Contra Costa Contra Costa County, above site of Judsonville, west of old Empire mine. 152 Comment
  JEPS100075  Amsinckia intermedia G. Smick 2003-3-4 GAS 59 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  SBBG39713  Amsinckia intermedia J. T. Howell 1933-5-14 11225 Contra Costa St Mary's College Comment
  UC1191046  Amsinckia intermedia R. Bacigalupi and Francia Chisaki 1957-3-27 912 Contra Costa 0.1 mi nw of crossing with Empire Avenue (field along Neroly Road) 24 Comment
  JEPS61163  Amsinckia intermedia Elsa Kraeger 1926-3-7 Contra Costa Mount Diablo, on raod from Toll Gate to summit of the mountain Mount Diablo Comment
  CAS-BOT-BC26848  Amsinckia linearifolia Alice Eastwood 1914-3-14 3812 Contra Costa Byron Springs Comment
  CAS-BOT-BC222463  Amsinckia lunaris Robert F. Hoover 1939-5-20 4105 Contra Costa Lower end of San Pablo Reservoir Comment
  JEPS20865  Amsinckia lunaris R. F. Hoover 1938-4-20 3178 Contra Costa lower end San Pablo Reservoir Comment
  UC1084622  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
  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
  UC1084624  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
  UC24601 Image available Amsinckia lycopsoides J. Burtt Davy 1895-4-7 887 Contra Costa Antioch; ; Antioch, Contra Costa Co. Comment
  CDA9450  Amsinckia menziesii D. G. Kelch 1992-3-21 1822 -A Contra Costa 2.5 mi. SE of Byron; along RR tracks, N of junction of Holey Rd. and Byron Hwy. 0 Comment
  UC2028032  Amsinckia menziesii Barbara Ertter 1998-4-4 15946 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, SE of Indian Valley School. Comment
  UC78256  Amsinckia tessellata var. tessellata K. Brandegee 1892-5-1 Contra Costa Antioch Comment
  CDA15263  Anagallis arvensis G. F. Hrusa, D. Crowe 1998-5-8 14394 Contra Costa Sacramento Delta; at E end of Dow Chemical property in Pittsburg. Comment
  CDA5474  Anagallis arvensis A. G. Murdock, D. G. Kelch 2004-3-19 215 Contra Costa Carquinez Strait Region; Luzon. Sycamore Avenue just east of Rodeo/Hercules where train crosses Highway 4 (Luzon). Comment
  UCD117436  Anagallis arvensis Jennifer Davies 1982-4-11 5 Contra Costa 1 mile NW of South Checking Station on South Gate Road, Mt. Diablo. 487 Comment
  JEPS95672  Anagallis monelli Nancy Hillyard 2000-4-23 Contra Costa E-facing slope overlooking Siesta Valley (on Skyline Trail between Vollmer Peak and Sibley Park) 300 Comment
  UC35150  Androsace elongata subsp. acuta J. P. Tracy 1902-3-15 1314 Contra Costa hills near Berkeley; San Francisco Bay, San Pablo Ridge 457 Comment
  UC691828  Androsace elongata subsp. acuta Mary L. Bowerman 1935-4-22 2888 Contra Costa crest of ridge w Pioneer Road (ridge w and on the e face; Mount Diablo, w of Old Stage Road); Mount Diablo 853 Comment
  UC691829  Androsace elongata subsp. acuta Mary L. Bowerman 1932-3-12 1116 Contra Costa Alamo Canyon , Alamo Canyon (Mount Diablo) 365 Comment
  UC2062460  Anemopsis californica Barbara Ertter with David Gowen and Mike Park 2004-6-13 18374 Contra Costa Black Diamond Mines Regional Preserve, just downstream from old homestead on west side of Old Homestead Loop. 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
  UC4888  Anemopsis californica W. L. Jepson May 23 1891-May 24 1891 Contra Costa near Mount Diablo Comment
  UC672438  Anemopsis californica Herbert L. Mason 1929-9-21 5437 Contra Costa 3 mi above Clayton (Marsh Creek Road); Marsh Creek Road Comment
  CAS-BOT-BC400257  Anemopsis californica Walter Knight; Irja Knight 1977-6-18 s.n. Contra Costa 2 mi. from Dutch Slough on Jersey Island Road, near Oakley Comment
  POM169016  Anemopsis californica A. D. E. Elmer 1903-06 4870 Contra Costa 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
  JEPS111664  Anthemis cotula A. G. Murdock 2004-5-28 302 Contra Costa Hercules - Carbon 50 Comment
  UC697132  Anthemis cotula Mary L. Bowerman 1930-6-3 228 Contra Costa North Road (1.9 mi from entrance) Mount Diablo 167 Comment
  CAS-BOT-BC84715  Anthemis cotula E. M. Zeile 1921-8-6 1136 Contra Costa Shepherd Canon Comment
  CAS-BOT-BC84716  Anthemis cotula Mary L. Bowerman 1930-6-3 228 Contra Costa Mount Diablo. North Road, 1.9 miles from entrance 167 Comment
  JEPS111630  Anthriscus caucalis D. G. Kelch 2005-5-13 05 .261 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Area along Vista Road ~ 2.5 kiloms West of Martinez 45 Comment
  JEPS99534  Anthriscus caucalis Mary L. Bowerman 1994-4-17 Contra Costa Mount Diablo, (probably bottom of Donner Canyon fire road). Comment
  UC1795735  Antirrhinum majus Barbara Ertter, Brad Olson 1994-5-7 12744 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  UC1614334  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum Charles M. Belshaw 1935-6-24 1026 Contra Costa Sobrante Hills Comment
  JEPS45617  Aphanes occidentalis W. L. Jepson 1931-4-5 15720 Contra Costa Nortonville 396 Comment
  UC12054  Aphanes occidentalis F. T. Bioletti 1892-4-8 Contra Costa Byron Comment
  UC691897  Apiastrum angustifolium Mary L. Bowerman 1933-4-26 1917 Contra Costa Mount Diablo, North Peak North Peak; Mount Diablo, North Peak 609 Comment
  UC692206  Aquilegia eximia Mary L. Bowerman 1936-9-10 3543 Contra Costa Donner Canyon Mount Diablo 335 Comment
  UC2029068  Aquilegia eximia Barbara Ertter 2000-7-29 17436 Contra Costa Donner Basin on north side of Mount Diablo, Middle Trail below Falls Trail junction, at crossing of W Fork Donner Creek, with Berberis, shaded, surface water. Comment
  UCD95520  Aquilegia formosa Collector unknown Date unknown s.n. Contra Costa On ridge to west of Franklin Canyon (Central). 274 Comment
  CAS-BOT-BC17272  Arabis blepharophylla Paul F. Covel 1938-5-8 1514 Contra Costa Summit Mount Diablo. Comment
  RSA482739  Arabis breweri Mark Morris 1929-03 14914 Contra Costa Mt. Diablo. Comment
  JEPS77022  Arbutus menziesii Robert M. Lloyd 1963-3-17 2147 Contra Costa 1 mi s of Moraga (on road to Castro Valley) Comment
  SBBG50848  Arbutus menziesii A. Hartman 1960-4-19 9 D Contra Costa North Gate Rd, Mt Diablo St Park 609 Comment
  CAS-BOT-BC407798  Arceuthobium campylopodum R. Bacigalupi 1922-9-24 s.n. Contra Costa Mitchell Canon, Mt. Diablo Comment
  JEPS40121  Arceuthobium campylopodum Miss Ferguson 1920-1-1 Contra Costa Donner Canyon Mt. Diablo Comment
  CAS-BOT-BC24121  Arctostaphylos auriculata Lewis S. Rose 1934-2-28 34039 Contra Costa S. slope Mt. Diablo, 8 mi. NE Danville Comment
  CDA9744  Arctostaphylos auriculata D. G. Kelch, D. A. Weinstein 1995-3-6 s.n. Contra Costa Rock City. Mt. Diablo. Comment
  POM203167  Arctostaphylos auriculata L. S. Rose 1934-2-28 34039 Contra Costa 8 miles NE Danville, S slope of Mt. Diablo. Comment
  POM316531  Arctostaphylos auriculata Mary L. Bowerman 1932-1-23 1075 (Duplicate) Contra Costa Sycamore Canyon, east fork: East edge of chaparral near canyon bottom. Comment
  RSA622480  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27601 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments
Jan 30 2013
  RSA622485  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27602 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments
Jan 30 2013
  RSA622488  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27603 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments
Jan 30 2013
  RSA70860  Arctostaphylos auriculata L. S. Rose 1934-2-28 34039 Contra Costa 8 miles NE Danville, S slope of Mt. Diablo. Comment
  UC549567  Arctostaphylos auriculata J. E. Adams 1934-3-19 678 Contra Costa Mt. Diablo Comment
  UC614738  Arctostaphylos auriculata Beryl O. Schreiber 1934-2-22 943 Contra Costa Devil's Slide Canyon Mount Diablo Comment
  UC692484  Arctostaphylos auriculata Mary L. Bowerman 1932-2-13 1086 Contra Costa on ridge between main forks of canyon Mount Diablo; , Alamo Canyon Comment
  UCD50260  Arctostaphylos auriculata Edward Lee 1936-1-12 1713 Contra Costa Immediately south of Nortonville. Comment
  UCD50263  Arctostaphylos auriculata Roman Gankin 1968-11-14 1310 Contra Costa Ca. 300 yds. above the road at Somersville. Comment
  UCD50264  Arctostaphylos auriculata Roman Gankin 1968-11-14 1309 Contra Costa Ca. 300 yds. above the road at Somersville. Comment
  UC2028019  Arctostaphylos auriculata Barbara Ertter 1997-9-14 15817 Contra Costa Southwest side of Mount Diablo, Wall Point Road on open sandstone ridge northwest of Wall Point. Comment
  UCSB24345  Arctostaphylos auriculata Jensen, H. 1938-10-27 Contra Costa Head of Sycamore Creek, Mt. Diablo 518 Comment
  CHSC83112  Arctostaphylos canescens subsp. sonomensis Walter Knight 1968-1-15 Contra Costa Tilden Park Bot. Gard. Comment
  CAS-BOT-BC23557  Arctostaphylos crustacea J. E. Adams 1934-3-9 623 Contra Costa Moraga Ridge Comment
  CAS-BOT-BC23593  Arctostaphylos crustacea Walter Knight 1980-3-6 3719 Contra Costa Redwood Regional Park, East Ridge Trail Comment
  CAS-BOT-BC23590  Arctostaphylos crustacea Walter Knight; Irja Knight 1980-3-16 3715 Contra Costa Sobrante Ridge between Heavenly Ridge Lane and Castro Ranch road. Comment
  SBBG5419  Arctostaphylos glandulosa subsp. mollis J. M. Tucker 1941-9-26 409 Contra Costa summit of Moraga Ridge 500 Comment
Read comments
Sep 13 2011
  CAS-BOT-BC24653  Arctostaphylos glauca Mary L. Bowerman 1933-2-4 1691 Contra Costa Mount Diablo, Perkins Canyon, s. fork. Comment
  CAS-BOT-BC24662  Arctostaphylos glauca Brandegee 1889-1-1 5 Contra Costa Antioch. Comment
  CAS-BOT-BC27256  Arctostaphylos laevigata Alice Eastwood 1922-3-17 11082 Contra Costa Mt. Diablo Comment
  RSA632815  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27577 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  RSA632818  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27585 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  RSA632822  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27578 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  RSA632823  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27581 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  RSA632824  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27591 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  SEINET11977789  Arctostaphylos manzanita M. T. Doutt 1930-1 85 Contra Costa Marsh Creek Comment
  CAS-BOT-BC38879  Arctostaphylos manzanita subsp. laevigata H. E. McMinn 1923-3-6 884 Contra Costa Along roadside 1/4 (?) way from top of Mt. Diablo Comment
  JEPS124457  Arctostaphylos manzanita subsp. laevigata Daniel Slakey with CNPS Volunteers 2015-6-29 132 Contra Costa Wall Point Rd, along a roughly 1 km stretch of road just west of Wall Point. Comment
  RSA122397  Arctostaphylos manzanita subsp. laevigata R. C. Wilson 1935-3-13 132 Contra Costa 1.5 mi W of Cave Pt. 563 Comment
  RSA140022  Arctostaphylos manzanita subsp. laevigata H. A. Jensen 1938-10-27 451 Contra Costa Head of Curry Canyon 518 Comment
  UC549604  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-10-6 675 Contra Costa Mt. Diablo Comment
  UC549756  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-3-19 685 Contra Costa Mt. Diablo Comment
  UC549758  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-3-19 683 Contra Costa Mt. Diablo Comment
  UC692217  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1932-1-30 1084 Contra Costa near firetrail w northeast fork of Sycamore Creek ((turn off ridge at fence where main ridge bends abruptly to north, follow fence)); Mount Diablo, Inner Black Hills Comment
  UC692220  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1932-9-5 1544 Contra Costa large spur on meridian which heads into Sycamore Canyon (crest of ridge); Mount Diablo Comment
  OBI14658  Arctostaphylos manzanita subsp. laevigata H. E. McMinn 1936-4-11 4418 Contra Costa Mt Diablo-head of Sycamore Canyon 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
  UC692224  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1938-6-24 3693 Contra Costa road 8.9 mi from North Gate (crest of ridge above road, below Pines Picnic Area); Mount Diablo 792 Comment
  CAS-BOT-BC24387  Arctostaphylos manzanita subsp. manzanita Alice Eastwood; John Thomas Howell 1936-4-19 2129 Contra Costa Nortonville. Comment
  CAS-BOT-BC24397  Arctostaphylos manzanita subsp. manzanita H. E. McMinn 1923-3-6 876 Contra Costa Sycamore Canon. Comment
  RSA164644  Arctostaphylos manzanita subsp. manzanita P. C. Everett 1963-11-19 24552 Contra Costa Mt. Diable, below Gibraltar Rock.Mt. Diablo. Comment
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Aug 10 2011
  LA42215  Arctostaphylos pallida J. A. Ewan; 1934-1-7 8162 Contra Costa Head of San Leandro Creek above Oakland Comment
  UC1120870  Arctostaphylos pallida R. W. Lundh 1933-1-12 188 Contra Costa 1/2 mi s Round Mt.; Concord Quadrangle 609 Comment
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Mar 14 2007
  SEINET11987134  Arctostaphylos pungens subsp. laevigata W. Knight, Knight, I. 1980-1 3824 Contra Costa Tilden Botanic Garden, orig. from Mt. Diablo Comment
  JEPS42608  Arctostaphylos tomentosa subsp. crustacea W. L. Jepson 1944-8-5 27546 Contra Costa Moraga Ridge Oakland Hills Comment
  POM131600  Arctostaphylos tomentosa subsp. crustacea Jos Burtt Davy 1897-1 10651 Contra Costa Moraga Valley. 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
  UC1120134  Arctostaphylos tomentosa subsp. crustacea Beryl O. Schreiber 1938-9-18 2547 Contra Costa 0.7 mi n Pinehurst; Concord Quadrangle, Moraga Ridge 182 Comment
Read comments
Jan 25 2008
  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
  UC692223  Arctostaphylos tomentosa subsp. crustacea Mary L. Bowerman 1932-3-20 1123 Contra Costa toward top middle ridge (ne fork of canyon); Mt. Diablo, Sycamore Canyon Comment
  UC692179  Argemone Mary L. Bowerman 1932-10-1 1603 Contra Costa Mount Diablo, Mitchell Canyon Mitchell Canyon; Mount Diablo, Mitchell Canyon Comment
  CAS-BOT-BC102183  Argyranthemum foeniculaceum G. Thomas Robbins; John Weiler 1959-5-23 4022 Contra Costa Breakwater portion of Brooks Island (its northwestern extension), San Francisco Bay, Richmond Comment
  UC581133  Aristolochia californica H. L. Mason 1934-1-20 7995 Contra Costa <Casihon> Creek (Las Trampas Creek) Comment
  CAS-BOT-BC400402  Aristolochia californica H. M. Hall 1899-4-23 s.n. Contra Costa Lauterwasser Creek Comment
  POM87995  Aristolochia californica H. M. Hall 1900-3-23 s.n. Contra Costa Lauterwasser Creek Comment
  JEPS97592  Arnica discoidea R. D. Stone 1980-7-13 268 Contra Costa ne of intersection of Snake Blvd. and Skyline Blvd Huckleberry Trail; Redwood Regional Park, Oakland Hills 396 Comment
  UC2028262  Arnica discoidea Barbara Ertter 1999-6-12 16718 Contra Costa Head of West Branch Alamo Creek on south flank of Mount Diablo, spur road to powerline south from Knobcone Point Road at park boundary. Comment
  RSA755498  Artemisia biennis Barbara Ertter, Jim Dunne, David Gowen, Lech Naumovich 2009-12-3 19800 Contra Costa Mudflats at upper (south) end of San Pablo Dam Reservoir northwest or Orinda 90 Comment
  CAS-BOT-BC90121  Artemisia biennis Evelina Cannon 1896-10-30 s.n. Contra Costa Giant Comment
  CAS-BOT-BC90295  Artemisia douglasiana John Thomas Howell 1925-9-19 1467 Contra Costa East side of Moraga Ridge near south end, Oakland Hills Comment
  POM318719  Artemisia douglasiana Patricia Wilder 1961-8-27 1065 Contra Costa Walnut Creek, near Calif. Hwy 24. 24 Stanley Court. 42 Comment
  UCR63400  Asclepias vestita Donald G. Nelson 1937-4-24 520 Contra Costa Marsh Creek Rd, between Byron & Clayton Comment
  UC1584827  Asparagus officinalis subsp. officinalis Jerry Powell 1990-8-29 1589 Contra Costa Antioch National Wildlife Refuge Comment
  CAS-BOT-BC180528  Astragalus asymmetricus M. K. Curran 1886-5-1 51 Contra Costa Antioch Comment
  UC1128838  Astragalus asymmetricus N. French 1935-7-19 644 Contra Costa 1/2 mi e Nortonville; Mt. Diablo Quad., e of Nortonville 304 Comment
  UC1606355  Astragalus asymmetricus Barbara Ertter with Dianne Lake 1991-8-18 10678 Contra Costa nw Bull Valley staging area (Carquinez Strait Regional Shoreline e of Crockett); Carquinez Strait Regioinal Shoreline e of Crockett Comment
  CAS-BOT-BC180575  Astragalus asymmetricus M. K. Curran 1885-5-30 s.n. Contra Costa Marsh Creek, near Mt. Diablo Comment
  UCD104630  Astragalus asymmetricus C. A. Hooper 1936-8-5 s.n. Contra Costa Pittsburg. Comment
  CAS-BOT-BC178476  Astragalus gambelianus Alice Eastwood 1923-5-4 11722 Contra Costa Mt. Diablo Comment
  UC635302  Astragalus gambelianus H. L. Mason 1928-4-26 4380 Contra Costa Berkeley-Oakland Hills Comment
  UC83409  Astragalus gambelianus Katharine Brandegee april 1889 Contra Costa Antioch Comment
  POM272526  Athysanus pusillus Lyman Benson 1935-3-16 6262 Contra Costa Mt. Diablo, Watershed: Walnut Creek; Mountain Range: Mt. Diablo. 915 Comment
  UC691076  Athysanus pusillus Mary L. Bowerman 1931-2-28 525 Contra Costa Fossil Ridge near Rock City (Mount Diablo); , Fossil Ridge 518 Comment
  SEINET12004480  Athysanus pusillus L. S. Rose 1932-1 32107 Contra Costa Nortonville Comment
  UCSB2239  Athysanus pusillus Kamb, Peter; Chisaki, Francia 1950-3-18 Contra Costa Saddle between North and South Peaks of Mount Diablo 883 Comment
  POM181083  Atriplex coronata J. T. Howell 1930-9-28 5503 Contra Costa 5.4 miles from Byron on Marsh Creek Road. Comment
  SEINET4133821  Atriplex fruticulosa Howard C. Stutz, G. L. Chu 1991-4-12 95463 Contra Costa 2 mi. S of Byron, E side of road in 'native' pasture.; 0 Comment
  JEPS59616  Atriplex joaquinana W. L. Jepson May 1891 Contra Costa Mt. Diablo region Comment
  UCD97493  Atriplex joaquinana Carol W. Witham 1994-8-7 588 Contra Costa east of Bixler Road between Marsh Creek Road and Point of Timber Road. 3 Comment
  JEPS78625  Atriplex prostrata Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3280 Contra Costa Browns Island , Browns Island (Botany Cove) Comment
  RSA666484  Atriplex prostrata Barbara Ertter, E. Neese 1988-10-15 7979 Contra Costa Salicornia marsh west of I-580 in El Cerrito, west side along Rydin Road north of Central Avenue. Comment
  UC2027884  Atriplex rosea Barbara Ertter, Chris Thayer 1996-10-25 15367 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park. Comment
  CDA23333  Atriplex triangularis D. G. Kelch, A. G. Murdock 2003-8-13 3 .095 Contra Costa Carquinez Strait Region; Martinez Marsh Comment
  CDA9509  Atriplex triangularis D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .236 Contra Costa CA Delta; Along Clifton Court Near Clifton Court Forebay. Comment
  SEINET11263175  Atriplex triangularis Barbara Ertter, Chris Thayer 1996-10-25 15361 Contra Costa NW flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park, intermittent surface water left in shaded stream in valley oak woodland and grassland.; 0 91 Comment
  UC473576  Atriplex triangularis John Thomas Howell 1931-10-31 8163 Contra Costa Bay Point Comment
  CDA19822  Avena barbata P. Akers 2002-5-11 s.n. Contra Costa Northern California; Mt Diablo Summit Trail at water tank picnic area. 873 Comment
  CHSC116649  Avena barbata Lowell Ahart; Josephine Guardino 2016-4-19 20786 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the sides ot the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  UC53768  Avena barbata J. Burtt Davy Apr 1897 Contra Costa Point Isabel Comment
  UC691230  Avena barbata Mary L. Bowerman 1933-5-2 1943 Contra Costa below Pioneer Camp; Mount Diablo 762 Comment
  CHSC21645  Avena fatua Willis Ball 1975-3-2 469 Contra Costa Contral Loma Regional Park. In area #2. On s side of hill ca. 55 myds. ne of single restroom at sw end of lake. 39 Comment
  UC579865  Avena fatua Annetta Carter 1936-4-19 1129 Contra Costa Red Rock San Francisco Bay (nw slope near summit of island) Comment
  RSA381454  Avena fatua G. D. Barbe 1983-5-22 4081 Contra Costa along fire road north of Juniper Campground, Mount Diablo State Park. Comment
  UCD56372  Avena fatua var. glabrata Beecher Crampton 1956-5-14 3418 Contra Costa 1/2 mile northwest of Martinez. On the road to Crockett. Comment
  CAS-BOT-BC98765  Baccharis douglasii Walter Knight; Harry Reeves 1979-8-25 3406 Contra Costa In natural marsh near reservoir. Contra Loma Regional Park near Antioch 22 Comment
  CAS-BOT-BC98766  Baccharis douglasii Walter Knight; I. Knight; S. Rae; B. Doyle; J. T. Howell; E. McClintock 1978-9-5 3209 Contra Costa Browns Island, near Sandy Knoll Comment
  CAS-BOT-BC98762  Baccharis douglasii Mary L. Bowerman 1938-9-17 3719 Contra Costa Mount Diablo, Willow Spring Comment
  JEPS111734  Baccharis glutinosa D. G. Kelch 2004-9-2 04 .337 Contra Costa Pacheco Marsh Marsh east of Martinez and I-680 and east of lone tree Marsh. Rhizomatous herb in marsh, 1 m tall 5 Comment
  UC697204  Baccharis glutinosa Mary L. Bowerman 1942-10-4 3852 Contra Costa Mount Diablo, Russelman Park Road 289 Comment
  JEPS102907  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
  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
  CAS-BOT-BC106561  Balsamorhiza deltoidea Rimo Bacigalupi; G. T. Robbins 1955-5-4 4978 Contra Costa On west facing slope south of and above Nortonville, along road to Irish Canyon 426 Comment
  PASA1585  Balsamorhiza deltoidea Annetta Carter 1929-3-31 Contra Costa Hills north of Mt. Diablo, near Clayton 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
  UC163955  Bellardia trixago Carlotta Case Hall 1911-5-20 8835 Contra Costa on grassy hill near Concord 100 Comment
  RSA60805  Bellardia trixago Carlotta C. Hall 1911-5-20 8835 Contra Costa Near Concord. 100 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
  CAS-BOT-BC102083  Bidens frondosa Walter Knight; Irja Knight; John Thomas Howell; E. McClintock; et. al 1978-9-5 3243 Contra Costa Browns Island, Yucca Landin Comment
  NY30996  Blennosperma californicum R. C. F. Bacigalupi 1957-3-27 5761 Contra Costa At junction of Lone Tree Way and Hillcrest Ave. (rd.), about 0.5 mile west of Lone Tree School 39.3 Comment
  NY31018  Blennosperma californicum L. S. Rose 1941-3-13 41035 Contra Costa 3 miles south of Byron 7.6 Comment
  RSA31357  Blennosperma nanum Joseph A. Ewan 1935-3-10 9154 Contra Costa In hills above Nortonville. Comment
  CAS-BOT-BC100699  Blennosperma nanum var. nanum Brandegee s.n. Contra Costa [Antiock] Antioch Comment
  UC1543131  Blennosperma nanum var. nanum Donald G. Nelson 1937-3-30 459 Contra Costa about halfway between Clayton and Byron, Marsh Creek Highway Clayton Comment
  UC565479  Blennosperma nanum var. nanum H. L. Mason 1929-3-15 5045 Contra Costa just s of Nortonville Comment
  CAS-BOT-BC100701  Blennosperma nanum var. nanum Annetta Carter 1937-3-28 1225 Contra Costa March Creek Road, 15 miles east of Concord 152 Comment
  UC761866  Blepharizonia laxa R. F. Hoover 1937-9-2 2710 Contra Costa 1 mi s of Pittsburg Comment
  CAS-BOT-BC100340  Blepharizonia plumosa Miss H. A. Walker 1916-8-28 3922 Contra Costa Los Medanos, near Antioch Comment
  JEPS105485  Blepharizonia plumosa Eva Buxton 1994-8-10 1099 Contra Costa Cowell Ranch, ca 1/2 mile east and 1 mile south of Marsh Creek Reservoir Comment
  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
  UC762568  Blepharizonia plumosa Robert F. Hoover 1937-9-2 2711 Contra Costa 1 mi w of Antioch Comment
  UC762569  Blepharizonia plumosa R. F. Hoover 1937-8-31 2704 Contra Costa Pittsburg Comment
  CAS-BOT-BC100322  Blepharizonia plumosa Eva Buxton 1994-8-10 1099 Contra Costa Cowell Ranch, ca. 0.5 mi. E and 1 mi. S of Marsh Creek Reservoir Comment
  JEPS48643  Boechera breweri Elsa Kraeger 1926-3-7 Contra Costa e of Mt. Diablo summit; Mt. Diablo Comment
  SJSU8304  Boechera breweri J. A. Merriman 1965-2-13 51 Contra Costa near summit of Mt Diablo; (Type locality) 853 Comment
  CAS-BOT-BC15964  Boechera breweri subsp. breweri J. W. Congdon 1896-5-8 s.n. Contra Costa Mount Diablo. Comment
  UC565476  Boechera breweri subsp. breweri Herbert L. Mason 1926-3-7 2796 Contra Costa Summit of Mt. Diablo Mt. Diablo Comment
  UC855336  Boechera breweri subsp. breweri Alice Eastwood 1915-5-30 4513 Contra Costa 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
  POM194201  Boisduvalia glabella J. T. Howell 1929-7-20 4331 Contra Costa Pittsburg Comment
  UCD140005  Bolboschoenus glaucus Beecher Crampton 1950-7-28 623 Contra Costa San Francisco Bay, Richmond. Comment
  UC2029178  Bolboschoenus maritimus subsp. paludosus Barbara Ertter with Alan Prather 2003-6-7 18198 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, fenced pond in bend of east Highland Ridge Trail, 1/4 miles E of junction Stone Corral Trail. Comment
  UC32474  Bowlesia incana Chesnut and Drew 1889-4-17 Contra Costa Clayton 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
  UC2028574  Bowlesia incana Barbara Ertter with Stu Garrett 1997-3-29 15538 Contra Costa West side Mount Diablo, north end of Mothers Trail. Comment
  CDA20615  Brassica juncea G. F. Hrusa 2006-1-18 s.n. Contra Costa San Francisco Bay Area; Residence in San Pablo at Stanton at San Pablo Ave. 0 Comment
  CAS-BOT-BC36726  Brassica rapa Ira L. Wiggins 1930-4-18 4609 Contra Costa Jersey Island. Comment
  OBI70583  Brassica rapa D. G. Kelch 2008-3-30 8 .029 Contra Costa Carquinez Strait: Crockett. Under Zampa (Carquinez) Bridge 14 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
  UC1795697  Briza maxima Barbara Ertter, Chris Thayer 1995-4-25 13999 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Black Hawk Ridge Rd at northeast FK of Sycamore Creek. 396 Comment
  JEPS116934  Brodiaea David Gowen 2008-4-27 874 Contra Costa Contra Loma Regional Park entrance at Black Diamond Mines Regional Preserve parking area at Frederickson Lane, north of parking area. Comment
  UC1618319  Brodiaea elegans subsp. elegans Barbara Ertter 1990-5-19 8995 Contra Costa n Lafayette (edge of ridge road); Briones Regional Park, Lafayette Ridge 365 Comment
  UC1134002  Brodiaea terrestris subsp. terrestris C. M. Belshaw 1936-5-9 2079 Contra Costa 1.5 mi e Mulligan Hill; Mt. Diablo Quad. 152 Comment
  UCD38557  Bromus berteroanus Beecher Crampton 1956-5-14 3415 Contra Costa 0.5 mile northwest of Martinez. Comment
  UCD57815  Bromus berteroanus Beecher Crampton 1956-5-14 3415 Contra Costa 1/2 mile west of Martinez. Comment
  POM300677  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
  CAS-BOT-BC149542  Bromus carinatus var. carinatus R. E. Frenkel 1964-2-24 378 Contra Costa On Giant Road at its junction with Atlas Road, Richmond. 16 Comment
  POM300671  Bromus diandrus Mary L. Bowerman 1935-4-26 2921 Contra Costa Mount Diablo. 1159 Comment
  CAS-BOT-BC156065  Bromus diandrus Mary L. Bowerman 1935-5-1 2935 Contra Costa Mount Diablo. North Road 2 miles from entracne. 182 Comment
  UC60202  Bromus hordeaceus J. B. Davy 1898-1 Contra Costa Mount Diablo Region, Danville Danville; Mount Diablo Region, Danville Comment
  UCD36913  Bromus hordeaceus Beecher Crampton 1956-5-14 3379 Contra Costa 5 miles south of city of Antioch, on Empire Mine Drive, at head of Horse Valley. Comment
  SEINET10514555  Bromus hordeaceus Knowles 1941-1 KNOWLES 87 -10 Contra Costa Briones Hills, cultivated, greenhouse. Comment
  SEINET3246736  Bromus hordeaceus Horace P. Miller 1986-1 9 -690 Contra Costa Lafayette Comment
  UC692367  Bromus laevipes Mary L. Bowerman 1935-5-16 3011 Contra Costa behind Gabriel-Hinks (e side of North Peak, Mount Diablo); Mount Diablo, North Peak 289 Comment
  UC2070614  Bromus laevipes Barbara Ertter with John Ginochio 2002-6-1 17943 Contra Costa Ginochio Ranch in Arroyo del Cerro on NW side of Mount Diablo, connector road between Government Road and Olofson Homestead. Comment
  UCD36914  Bromus madritensis Beecher Crampton 1956-5-14 3385 Contra Costa 6.7 miles southwest of city of Antioch, along ridge between old coal mining towns of Somersville and Nortonville. Comment
  UC691212  Bromus madritensis subsp. madritensis Mary L. Bowerman 1935-5-1 2934 Contra Costa Mount Diablo, West Road,= North Road 2 mi from entrance Mount Diablo; , West Road 182 Comment
  UC692335  Bromus madritensis subsp. madritensis Mary L. Bowerman 1935-4-19 2863 Contra Costa near Turtle Rock (Mount Diablo); Mount Diablo 457 Comment
  CHSC21638  Bromus madritensis subsp. rubens Willis Ball 1975-3-9 479 Contra Costa Contra Loma Regional Park. In area #8. On top of hill ca. 600 yds. sw of main parking lot ca. 800 yds. w of Contra Loma Blvd. 152 Comment
  UC1024733  Bromus madritensis subsp. rubens Leo Whitney 1935-4-21 3056 Contra Costa Corral Hollow Comment
  HSC9309  Bromus madritensis subsp. rubens Greg Bos 1963-4-10 74 Contra Costa El Cerrito Hills, E end 76 Comment
  CAS-BOT-BC162018  Bromus racemosus P. F. Knowles 1942-1-1 B 70 Contra Costa 1 mile west of Rodeo. Davis. Comment
  CAS-BOT-BC161949  Bromus rubens Mary L. Bowerman 1933-5-9 2039 Contra Costa Mount Diablo. East of Pioneer Camp. Comment
  JEPS111868  Cakile maritima D. G. Kelch 2004-7-9 04 .313 Contra Costa Rodeo Shoreline 0 Comment
  JEPS127039  Calandrinia ciliata Lowell Ahart, Josephine Guardino 2016-4-19 20777 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
  CAS-BOT-BC438365  Calandrinia ciliata unspecified No date on label s.n. Contra Costa Antioch Comment
  UCD100165  Calandrinia ciliata Beecher Crampton 1950-4-16 512 Contra Costa Along R.R. embankment, Giant. Comment
  CHSC24837  Calandrinia ciliata var. menziesii M. A. Callahan 1976-4-14 14 Contra Costa Small pop. 5 m. from roadside w of house at 1976 Mohawk Dr. Pleasant Hill. 115 Comment
  JEPS22442  Callitriche marginata Frank Shultz 1958-3-15 Contra Costa 3 miles south of Byron. 15 Comment
  UC2027722  Callitriche marginata Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15512 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  UC691992  Calochortus Mary L. Bowerman 1933-5-22 2169 Contra Costa e of Knobcone Point (on n-face (2 small ridges w of n ridge)); Mount Diablo, Inner Black Hills Comment
  UC3366  Calochortus albus W. H. Brewer 1862-5-24 1157 Contra Costa se of Monte Diablo Comment
  UC2028294  Calochortus argillosus Barbara Ertter, Dan Norris 1998-6-18 16219 Contra Costa west of Rock City area on south side of Mount Diablo, saddle on W Fossil Ridge Trail. Comment
  UC2028974  Calochortus argillosus Barbara Ertter with Brad Olson et al. 2000-6-2 17296 Contra Costa north side Brushy Peak Regional Preserve NE of Livermore. Comment
  SEINET5192548  Calochortus luteus Unknown 1995-6-15 03 Contra Costa Mt.Diablo State Park; near entrance Comment
  CAS-BOT-BC132493  Calochortus pulchellus D. E. Breedlove 1970-4-18 17425 Contra Costa At the north edge of Lafayette above Laurel Drive 243 Comment
  CAS-BOT-BC132502  Calochortus pulchellus L. R. Abrams 1921-5-25 8053 Contra Costa 4 1/2 mi from summit, Mt. Diablo Comment
  CAS-BOT-BC132504  Calochortus pulchellus Alice Eastwood 1923-5-4 11728 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
  JEPS122394  Calochortus pulchellus Nisrine Machaka-Houri 2014-5-17 NG 14 Contra Costa Black Point Trail, Mitchell Canyon, Mt. Diablo State Park. 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
  SBBG54485  Calochortus pulchellus L. R. Abrams 1921-5-25 8053 Contra Costa Mt Diablo, 4.5 mi from summit Comment
  SEINET5245480  Calochortus pulchellus Unknown 1995-6-15 02 Contra Costa Mount Diablo State Park Comment
  UC3462  Calochortus pulchellus W. H. Brewer 1862-5-26 1163 Contra Costa near Mount Diablo Comment
  UC2028221  Calochortus pulchellus Barbara Ertter with Christopher Baysdorfer 1998-5-10 16125 Contra Costa West side Lime Ridge Open Space northwest of Mount Diablo. Comment
  CAS-BOT-BC132534  Calochortus umbellatus John Thomas Howell 1933-5-14 11261 Contra Costa Hills east of St. Mary's College Comment
  CAS-BOT-BC494047  Calochortus venustus John Thomas Howell 1931-5-12 6471 Contra Costa Nortonville Comment
  RSA0029672  Calochortus venustus Barbara Ertter, Susan D'Alcamo 1998-6-12 16156 Contra Costa North Gate Road on west flank of Mount Diablo, ca 1/2 mile below upper Turtle Rock Ranch buildings. 518 Comment
  UC197535  Calycadenia multiglandulosa H. M. Hall 1916-8-16 10274 Contra Costa 9 km s of Antioch; Horse Valley Comment
  UC697173  Calycadenia truncata Mary L. Bowerman 1931-9-12 1040 Contra Costa Mitchell Canyon, spur jutting into w fork Mount Diablo, Mitchell Canyon 838 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
  CAS-BOT-BC224749  Calystegia malacophylla subsp. pedicellata Alice Eastwood 1915-5-30 4538 Contra Costa Mt. Diablo Comment
  JEPS31638  Calystegia purpurata W. L. Jepson 1922-6-7 9720 Contra Costa North Berkeley Hills Comment
  UC2032816  Calystegia purpurata Doran, Andrew Scott 2012-3-20 686 Contra Costa North end of Brooks Island along ridge, cleared area northwest of caretakers residence. Comment
  HSC6375  Calystegia purpurata Greg Bos 1963-4-10 70 Contra Costa Rock Quarry, Richmond, El Cerrito Hills W end 76 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
  UC1034867  Calystegia sepium subsp. binghamiae Ira L. Wiggins 1954-9-5 13123 Contra Costa Levee along Bethel Island; Levee along Bethel Island Comment
  CAS-BOT-BC224745  Calystegia sepium subsp. limnophila R. K. Brummitt; B. Ertter 1998-5-6 19792 Contra Costa Antioch. Sea level 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
  CDA39893  Calystegia sepium subsp. limnophila D. G. Kelch 2004-7-9 4 .289 Contra Costa Carquinez Strait; Crockett; Edwards Creek, immediately below high school. Comment
  UC2031432  Calystegia subacaulis Barbara Ertter 2002-5-11 17843 Contra Costa Wall Point on southwest flank of Mount Diablo. Comment
  CAS-BOT-BC224336  Calystegia subacaulis subsp. subacaulis R. K. Brummitt; B. Ertter 1998-5-13 19841 Contra Costa S of Antioch, Black Diamond Mine Regional Park 400 Comment
  UC35393  Camissonia campestris subsp. campestris Chesnut and Drew 1889-4-17 Contra Costa Antioch Comment
  POM257264  Camissonia campestris subsp. campestris H. L. Mason 1929-3-31 5153 Contra Costa Along San Joaquin River, Antioch. Comment
  RSA448887  Camissonia hirtella H. de Forest 1930-4-6 s.n. Contra Costa SE of Mortonville, Small coal mine ravine. 274 Comment
  RSA186718  Camissonia intermedia D. E. Breedlove 1963-5-2 4698 Contra Costa At entrance to Mt. Diablo State Park 4 miles east of Danville Comment
  SEINET12189053  Camissonia strigulosa L. S. Rose 1938-1 38223 Contra Costa Antioch 15 Comment
  UC635400  Camissoniopsis intermedia H. L. Mason 1928-4-29 4436 Contra Costa Sycamore Canyon Mount Diablo (s slope of mt.) 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
  UC726184  Camissoniopsis micrantha A. A. Heller 1942-4-12 Contra Costa 4 mi w Antioch Comment
  UC764055  Camissoniopsis micrantha Robert F. Hoover 1935-3-10 314 Contra Costa Antioch sand-dunes Comment
  SEINET10461960  Campanula exigua Rattan 1886-6-14 RATTAN s.n. Contra Costa Summit of Mount Diablo Comment
  SEINET10461961  Campanula exigua Edward L. Greene 1892-6-20 Greene s.n. Contra Costa Mount Diablo Comment
  UC1126900  Cardamine californica R. W. Lundh 1933-3-20 215 Contra Costa 2 mi nw Walnut Creek, Canada del Hambro; Concord Quad. 182 Comment
  UC762889  Cardamine californica R. F. Hoover 1938-2-21 2754 Contra Costa Point Richmond Comment
  UCD114186  Cardamine californica Morris Halperin 1929-4-21 s.n. Contra Costa St. Mary's College campus. Comment
  UCR17079  Cardamine californica James K. Ryan 1969-3-31 45 Contra Costa Mt. Diablo State Park, 0.25 mi inside S gate entrance at first large turnout on left side of rd, at top of steep hill 701 Comment
  RSA272927  Cardamine californica var. integrifolia Lyman Benson 1935-3-16 6263 Contra Costa Mt. Diablo, Watershed: Walnut Creek; Mountain Range: Mt. Diablo. 915 Comment
  POM203648  Cardamine californica var. integrifolia J. T. Howell 1933-5-14 11255 Contra Costa Hills east of St. Mary s college Comment
  UC2027761  Cardamine hirsuta Barbara Ertter 1997-2-11 15453 Contra Costa North side of Mount Diablo, Donner Cabin site on Donner Canyon Road. Comment
  RSA720841  Cardaria draba Barbara Ertter, Richard K. Rabeler 1994-6-6 12819 Contra Costa Point Isabel in south Richmond; S of Central Avenue. Comment
  POM351433  Carduus pycnocephalus B. C. Templeton 1962-6-10 s.n. Contra Costa Mt Diablo. Comment
  JEPS79443  Carduus tenuiflorus Edward Lee with Annetta Carter 1935-6-13 1431 Contra Costa s Richmond Panhandle Boulevard; Richmond Comment
  JEPS97625  Carduus tenuiflorus Annetta M. Carter, Florence Dickson 1939-5-28 1437 Contra Costa El Cerrito. 7 Comment
  CDA29516  Carex barbarae D. G. Kelch, Troy MacGregor 2009-5-1 9 .277 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  CDA33124  Carex barbarae D. G. Kelch, A. G. Murdock 2004-7-9 04 .305-B Contra Costa Carquinez Strait; Alhambra Creek, Martinez, near Muir gravesite, Arroyo del Hambre. Comment
  JEPS25138  Carex barbarae G. Thomas Robbins 1959-5-16 4008 Contra Costa Caly [clay] banks and rivulet just north of Point Orient, Potrero Hills, overlooking San Francisco Bay, Richmond Comment
  CAS-BOT-BC19209  Carex barbarae L. R. Abrams 1916-7-30 5723 Contra Costa Mt. Diable near the lake. Comment
  SEINET10653000  Carex bifida Lewis S. Rose 1935-5-16 Rose 35163 Contra Costa Mt. Diablo, Wet spots around springs. Comment
  UC2029200  Carex densa Barbara Ertter 2003-2-8 18091 a Contra Costa Richmond Field Station (UC-Berkeley) Comment
  CAS-BOT-BC34931  Carex densa Mary L. Bowerman 1938-6-14 3682 Contra Costa Mount Diablo. Willow Spring (near road). 701 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
  POM300640  Carex dudleyi Mary L. Bowerman 1935-5-16 3001 Contra Costa Mt. Diablo: Russelman Park road at Gregory Ranch junction. 290 Comment
  JEPS99504  Carex nudata Mary L. Bowerman Apr 1977 Contra Costa Mount Diablo, Sycamore Creek Canyon. 243 Comment
  JEPS111897  Carex obnupta D. G. Kelch 2004-7-9 04 .305 Contra Costa Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite 60 Comment
  CHSC111020  Carex pendula Barbara Ertter; David Gowen 2010-11-17 20699 Contra Costa Southeast part of Lime Ridge Open Space (City of Walnut Creek), lower end of east-facing drainage below Crystyl Ranch Trail ca 1/4 m N of Paraiso Trail, 37.927 deg. N 121.979 deg. W ca. 180 m (also in spring area in mid drainage, 37.927 deg. N 121.981 deg. W, ca 195 m). 180 Comment
  CAS-BOT-BC117549  Carex serratodens Miss Mary Leolin Bowerman 1936-4-23 3406 Contra Costa Moses Rock Spring. 640 Comment
  SEINET7575209 Image available Carex serratodens Lewis S. Rose 1935-5-16 35163 Contra Costa Mt. Diablo. Comment
  UC2028573  Carex serratodens Barbara Ertter with Stu Garrett 1997-3-29 15537 Contra Costa West side Mount Diablo, spring at north junction of Mothers Trail and Burma Road. Comment
  JEPS25105  Carex subbracteata G. Thomas Robbins 1959-4-18 3984 Contra Costa about 1/2 mi e Pt. San Pablo (overlooking San Pablo Bay); San Pablo Bay, Richmond 7 Comment
  UC590537  Carex subbracteata W. H. Brewer 1012 Contra Costa Walnut Creek Comment
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Oct 23 2009
  CAS-BOT-BC116917  Carex subbracteata var. subbracteata G. Thomas Robbins 1959-4-18 3985 Contra Costa Overlooking San Pablo Bay, ca 1/2 mi E of Pt. San Pablo, Richmond. 7 Comment
  CAS-BOT-BC115560  Carex tumulicola G. Thomas Robbins 1958-7-19 3908 Contra Costa Pt. Orient, San Francisco Bay, ca. 3/4 mile S of Pt. San Pablo, Comment
  CDA20549  Carthamus creticus R. Fonseca 2005-6-2 PDR 1327561 Contra Costa San Francisco Bay Area; 1171 Chistie Rd, Martinez. 0 Comment
  JEPS74801  Castilleja L. R. Heckard with T. I. Chuang and R. Bacigalupi 1975-5-7 4009 Contra Costa ca 0.5 mi e Pinole (just e of Interstate 80, along main route of Santa Fe RR) 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
  UC2029088  Castilleja applegatei subsp. martinii Barbara Ertter 2000-7-29 17446 Contra Costa Donner Basin on north side of Mount Diablo, Falls Trail south of Wild Oat Canyon. Comment
  UC691580  Castilleja attenuata Mary L. Bowerman 1932-4-9 1333 Contra Costa from near Rock City ridge to Wall Point; Mount Diablo Comment
  JEPS19440  Castilleja densiflora subsp. densiflora Rimo Bacigalupi with G. T. Robbins 1956-5-11 5640 Contra Costa .33 mi e Pinole (between State Highway 4 (Franklin Canyon Rd) and Santa Fe Ry. right-of-way, 0.25 mi e of junction of this rd with U.S. Hwy 40) 22 Comment
  JEPS74807  Castilleja densiflora subsp. densiflora L. R. Heckard, T. I. Chuang and R. Bacigalupi 1975-5-7 4015 Contra Costa ca 0.5 mi e Pinole (just e of Interstate Hwy 80, along main route of Santa Fe Railroad) 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
  UC2070594  Castilleja exserta Barbara Ertter with Steve Matson 2003-3-15 18101 Contra Costa Black Diamond Mines Regional Preserve, west ridge of Rose Hill. Comment
  JEPS15212  Castilleja exserta subsp. exserta C. M. Belshaw 1936-5-11 2096 Contra Costa 5.25 mi e Danville; Mt. Diablo 289 Comment
  JEPS19519  Castilleja exserta subsp. exserta Rimo Bacigalupi with G. T. Robbins 1956-5-11 5640 -A Contra Costa .33 mi e Pinole (between State Hwy 4 (Franklin Canyon Rd) and Santa Fe Ry right-of-way, 0.25 mi e of junction of this rd with U.S. Hwy 40) Comment
  UC27266  Castilleja exserta subsp. exserta State Survey 1117 Contra Costa near Clayton; Kirker Pass Summit Comment
  CAS-BOT-BC241277  Castilleja latifolia Alice Eastwood 1915-6-21 4740 Contra Costa San Leandro Comment
  JEPS100150  Castilleja rubicundula subsp. lithospermoides G. Smick 2003-5-8 GAS 185 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS15184  Castilleja rubicundula subsp. lithospermoides C. M. Belshaw 1936-5-11 2095 Contra Costa 5.25 mi e Danville; Mt. Diablo Quad. 289 Comment
  UC691575  Castilleja rubicundula subsp. lithospermoides Mary L. Bowerman 1931-5-2 787 Contra Costa foot of Eagle Point ridge; Mount Diablo Comment
  JEPS48749  Castilleja subinclusa subsp. franciscana H. M. Wheeler 1944-1-16 27511 Contra Costa Upper San Leandro Canyon Oakland Hills, Moraga Ridge Comment
  CDA1111  Castilleja wightii A. G. Murdock, D. Kelch 2003-6-24 116 Contra Costa Carquinez Strait; Vaca Canyon; Alhambra Valley Rd. Comment
  CDA29227  Castilleja wightii D. G. Kelch 2002-6-17 2 .013 Contra Costa Carquinez Strait; Vaca Canyon. 1.5 kilometers east of Pig Sale on Alhambra Valley Road. 0 Comment
  CAS-BOT-BC41037  Caulanthus flavescens Mary L. Bowerman 1935-4-22 2879 Contra Costa Mount Diablo. North Road 2 miles from North Gate. 213 Comment
  CAS-BOT-BC40514  Caulanthus lasiophyllus Alice Eastwood 1921-4-18 10251 Contra Costa Antioch. Comment
  POM11961  Caulanthus lasiophyllus var. rigidus Katherine Brandegee s.n. Contra Costa Byron Hot Springs. Comment
  CAS-BOT-BC48833  Ceanothus cuneatus W. W. Carruth 1907-3-1 s.n. Contra Costa Mt. Diablo Comment
  POM136472  Ceanothus cuneatus H. P. Chandler 1901-4-5 977 Contra Costa Mt. Diablo Comment
  RSA753076  Ceanothus cuneatus Dylan O. Burge 2007-5-9 DOB- 916 c Contra Costa Mount Diablo State Park: roadside on South Gate Road 1.5 road miles (2.4 km) N of entrance gate, 6.38 km 67 degrees (True) ENE of DAnville. 380 Comment
  JEPS48720  Ceanothus cuneatus var. cuneatus W. L. Jepson 1945-3-11 27553 Contra Costa Moraga Ridge Comment
  UC1071131  Ceanothus cuneatus var. cuneatus R. C. Wilson 1935-3-12 123 Contra Costa 1 mi se, Wall Pt.; Mt. Diablo quad. 335 Comment
  UC80011  Ceanothus cuneatus var. cuneatus G. W. Dunn 1892-3-12 Contra Costa Mt. Diablo Comment
  UCD124005  Ceanothus cuneatus var. cuneatus D. O. Burge 2007-5-9 916 e Contra Costa Mount Diablo State Park, roadside on South Gate Road, 1.5 road miles (2.4 km) north of entrance gate, 6.38 km 67 deg. (True) ENE of Danville. 380 Comment
  OBI10513  Ceanothus gloriosus var. exaltatus Robert F. Hoover 1962-3-23 8541 Contra Costa Cultivated in Tilden park botanic garden. Originally from 11 mi S of Guerneville (8 mi W of Sebastopol, Sonoma Co) Comment
  JEPS42191  Ceanothus oliganthus var. sorediatus W. L. Jepson 1908-4-4 3003 Contra Costa West Branch of San Pablo Creek Berkeley hills Comment
  JEPS35031  Centromadia fitchii W. L. Jepson 1895-9-14 Contra Costa Walnut Creek Comment
  CAS-BOT-BC288547  Centromadia fitchii Mary L. Bowerman 1936-9-17 3548 Contra Costa Mount Diablo. North Rd 2.5 miles from North Gate: at roadside, slightly lower down, extending down the bank into grassland 243 Comment
  UCD36033  Centromadia fitchii Beecher Crampton 1949-7-15 485 Contra Costa below original site of Judsonville, Lee Higgins Empire Ranch, head of Lone Tree Valley. 114 Comment
  UC1777686  Centromadia parryi subsp. congdonii R. E. Preston 1998-10-25 1198 Contra Costa junction of Sycamore Valley Rd and Camino Tassajara Danville 129 Comment
  CAS-BOT-BC279198  Centromadia pungens subsp. pungens John Thomas Howell; Gordon H. True 1972-6-29 48920 Contra Costa On Byron Hot Springs Road southeast of Byron Comment
  CAS-BOT-BC279205  Centromadia pungens subsp. pungens John Thomas Howell 1930-9-28 5489 Contra Costa 2 miles from Concord on road to Walnut Creek Comment
  UC30957  Centromadia pungens subsp. pungens Jos. Burtt Davy 1900-6-7 6661 Contra Costa between Martinez and Pacheco Comment
  UC89009  Centromadia pungens subsp. pungens E. L. Greene 1886-5-23 Contra Costa Byron Springs Comment
  UC912272  Centromadia pungens subsp. pungens H. L. Mason 1929-9-21 5438 Contra Costa Marsh Creek Road Comment
  CAS-BOT-BC279186  Centromadia pungens subsp. pungens David D. Keck 1932-7-7 1736 Contra Costa Just east of Nichols Comment
  CAS-BOT-BC279190  Centromadia pungens subsp. pungens A. A. Heller 1928-4-15 14487 Contra Costa About Byron Springs Comment
  JEPS51352  Cerastium glomeratum W. L. Jepson 1922-4-16 9600 Contra Costa San Pablo Comment
  CAS-BOT-BC137009  Cercocarpus betuloides var. betuloides Mary L. Bowerman 1932-9-3 1538 Contra Costa Mount Diablo. Summit Comment
  UC12129  Cercocarpus betuloides var. betuloides W. H. Brewer 1862-5-14 1089 Contra Costa Mount Diablo, summit Mount Diablo Comment
  UC691102  Cercocarpus betuloides var. betuloides Mary L. Bowerman 1936-9-9 3541 Contra Costa Rock City Ridge = Fossil Ridge, w of 1478 (below road) Fossil Ridge; Mount Diablo, , Rock City Ridge Comment
  CAS-BOT-BC284218  Chaenactis glabriuscula var. megacephala M. K. C. 1886-5-1 26 Contra Costa Antioch 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
  RSA0027635  Chamaesyce serpillifolia subsp. serpillifolia Barbara Ertter, Chris Thayer 1996-10-25 15359 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park. 91 Comment
  UC1818886  Cheilanthes covillei Barbara Ertter, Lisa Schultheis 1995-2-1 13923 Contra Costa Mount Diablo ESE of Walnut Creek; Murchio Gap, base of rocks on northwest side of road, ca 2300' Comment
  JEPS106991  Cheilanthes intertexta J. Greenhouse with Kevin Hintsa 2004-4-5 5084 Contra Costa Mt. Diablo, Fire Interpretive Trail, Devil's Pulpit 1085 Comment
  UC1328153  Chenopodium album Olive Dyer 1936-8-29 4 Contra Costa 1 1/2 mi below San Pablo Ave.; Wildcat Creek Comment
  UC691936  Chenopodium californicum Mary L. Bowerman 1935-3-16 2746 Contra Costa Arroyo del Cerro Mount Diablo (between the fork) 304 Comment
  RSA0027945  Chenopodium californicum Barbara Ertter 1998-4-4 15964 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, west side of rocky knoll between northwestern-most ridge and Indian Valley School. Comment
  CDA21590  Chenopodium multifidum D. G. Kelch, Mike Park 2008-9-1 8 .302 Contra Costa Carquinez Strait; Lonetree Point. Rodeo Shoreline Park. Rodeo. Comment
  CDA9490  Chenopodium rubrum D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 07 .213-B Contra Costa Byron Airport. Comment
  CDA39315  Chlorogalum pomeridianum var. pomeridianum D. G. Kelch 2005-6-24 5 .387 Contra Costa Carquinez Strait Region; 5th Street Prairie, Crockett. Comment
  SJSU9368  Chloropyron molle subsp. molle W. Savage 1979-6-15 1267 Contra Costa 100' W of Harris Harbor Channel, 0.25 mi N of Harris Harbor Comment
  JEPS57664  Chorizanthe membranacea W. L. Jepson May 23 1891-May 24 1891 Contra Costa Mount Diablo Comment
  SD8106  Chorizanthe uniaristata Kate Curran June 1884 Contra Costa Antioch Comment
  UC188732  Chorizanthe uniaristata M. K. Curran 1884-1 Contra Costa near Mount Diablo; near Mount Diablo Comment
  JEPS77018  Chrysolepis chrysophylla var. minor Robert M. Lloyd 1963-3-17 Contra Costa on Skyline across from 7090 Skyline Drive (0.5 mi e of intersection of Grizzly Peak Road and Skyline Drive); Skyline Drive, Huckleberry Trail Comment
  UC72145  Cicendia quadrangularis Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  UCD127262  Cicuta maculata var. bolanderi Walter Knight; Irja Knight et al. 1978-9-5 3244 Contra Costa Browns Island. Comment
  POM215028  Cirsium brevistylum Alice Eastwood 1931-5-30 18618 Contra Costa Oak Spring Comment
  CAS-BOT-BC277974  Cirsium cymosum John Thomas Howell 1942-7-19 17039 Contra Costa Near Rock City, Mt. Diablo Comment
  UC1119189  Cirsium cymosum var. cymosum C. M. Belshaw 1936-5-7 2050 Contra Costa 2 mi n of Danville; Mt. Diablo Quadrangle 243 Comment
  UC2070625  Cirsium douglasii var. douglasii Barbara Ertter with D. Gowen, J. Ginochio, M. Park, S. Matson, A. Moore, S. D'Alcamo, J. Greenhouse, K. Kersh and J. Gawthrup 2005-5-8 18564 Contra Costa Long Ridge on west side of Mount Diablo, stringer below Moses Rock Spring on Burma Road. Comment
  UC30830  Cirsium occidentale var. venustum W. G. Klee Contra Costa Comment
  JEPS111724  Cirsium vulgare D. G. Kelch 2004-7-9 04 .298 Contra Costa Crockett - Carquinez Scenic Drive Just west of Pt. Costa 60 Comment
  UC691387  Cirsium vulgare Mary L. Bowerman 1933-9-15 2442 Contra Costa s face of Meridian Peak; Mount Diablo, Hunt Spring 762 Comment
  UC1795899  Clarkia Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14638 Contra Costa Little Pine Creek at northwest foot of Mt. Diablo, along trail connecting North Gate Road to Castle Rock Road, Diablo Foothills Regional Park; grassy hillside. Comment
  JEPS111557  Clarkia affinis A. G. Murdock 2003-6-2 85 Contra Costa Port Costa - Reservoir: Uphill bank at east Crockett-Port Costa junction 28 Comment
  UC112975  Clarkia affinis Katharine Brandegee 1907-6-16 Contra Costa hills between Antioch and Marsh Creek Comment
  UC692492  Clarkia affinis Mary L. Bowerman 1933-4-26 1925 Contra Costa ese North Peak (North Peak Ridge, s face); Mount Diablo 609 Comment
  UC692500  Clarkia affinis Mary L. Bowerman 1935-5-22 3041 Contra Costa canyon at n end Eagle Point Ridge (canyon heads into saddle w of Twin Peaks); Mount Diablo 304 Comment
  UC692504  Clarkia affinis Mary L. Bowerman 1933-5-17 2095 Contra Costa due s Olafsons' barn (branch of Curry Cave Canyon); Mount Diablo Comment
  UC692439  Clarkia biloba Mary L. Bowerman 1935-6-15 3139 Contra Costa below Ransom Point (Eagle Point Ridge); Mount Diablo 822 Comment
  UCD104071  Clarkia biloba C. Thayer 1994-8-1 s.n. Contra Costa West side of Lafayette Ridge, Lafayette. Comment
  UC2042500  Clarkia concinna Holly Forbes and Barbara Keller 2009-5-29 Contra Costa Mt. Diablo State Park, along Deer Creek Rd. about 0.1 mi. from the entrance of Juniper campground. Comment
  SD69962  Clarkia concinna Darley Howe 1968-5-20 4518 Contra Costa 5.6 miles north of Contra Costa, Alameda County Line on Morgan Territory road. Comment
  UC2029141  Clarkia concinna Barbara Ertter with Alan Prather 2003-6-7 18213 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, Coyote Trail. Comment
  JEPS43615  Clarkia concinna subsp. concinna W. L. Jepson 1918-6-3 7572 Contra Costa Donner Canyon, Mt. Diablo Comment
  JEPS43618  Clarkia concinna subsp. concinna W. L. Jepson 1923-6-10 9987 Contra Costa Upper Marsh Creek Mt. Diablo Comment
  POM32521  Clarkia concinna subsp. concinna A. D. E. Elmer 1903-05 4336 Contra Costa Mount Diablo. Comment
  UC2028989  Clarkia concinna subsp. concinna Barbara Ertter 2000-5-14 17005 Contra Costa Donner Canyon on north side of Mount Diablo, serpentinitic sites in general area of junction of Donner Canyon, Cardinet Oaks, and Meridian Ridge roads, edged by Arctostaphylos glauca et al. Comment
  UC1818899  Clarkia gracilis subsp. gracilis Barbara Ertter, Mary Bowerman 1994-6-19 12853 a Contra Costa Mt. Diablo State Park east of Walnut Creek; scrub oak thicket north of road, north of lower summit parking lot, next to drainage on north facing slope. Comment
  UC20033  Clarkia modesta F. P. McLean Contra Costa Mt. Diablo Comment
  JEPS99503  Clarkia modesta Mary Bowerman 1978-5-14 Contra Costa Mount Diablo. E side of Eagle Peak, Back Canyon trail to mine. Area of Aug 1977 burn. Comment
  UCSC000483  Clarkia modesta Jean M. Nelson 1937-5-8 s.n. Contra Costa Small canyon at the head of Markley Canyon, north of Mount Diablo Markley Canyon, Mount Diablo - Somersville Comment
  UC692503  Clarkia purpurea subsp. purpurea Mary L. Bowerman 1933-7-14 2270 Contra Costa ridge between two main forks Curry-Cave Canyon; Mount Diablo Comment
  UC692441  Clarkia purpurea subsp. quadrivulnera Mary L. Bowerman 1931-5-19 875 Contra Costa Donner Canyon trail Mount Diablo Comment
  UC1279947  Clarkia rubicunda Peter H. Raven 1957-7-5 11049 Contra Costa 0.2 mi from tip Point Richmond 106 Comment
  UC1618334  Clarkia rubicunda Barbara Ertter, Brad Olson 1993-8-8 12204 Contra Costa s.w. San Ramon (Bishop Ranch Regional Open Space); Bishop Ranch Regional Open Space Comment
  CAS-BOT-BC165037  Clarkia rubicunda Peter H. Raven 1957-7-5 11049 Contra Costa 0.2 mile from tip of Point Richmond Comment
  POM249884  Clarkia rubicunda Joseph A. Ewan 1936-7-5 9744 Contra Costa Virginia Canyon, Berkeley Hills Comment
  UC113995  Clarkia rubicunda Katharine Brandegee 1908-7-3 Contra Costa n side Point Isabel (type locality) Comment
  UC114011  Clarkia rubicunda Katharine Brandegee 1908-7-3 Contra Costa n side Point Isabel (type locality) Comment
  RSA41158  Clarkia unguiculata Robert F. Hoover 1937-5-14 2110 Contra Costa Antioch sand-dunes Comment
  CAS-BOT-BC165455  Clarkia unguiculata Mary L. Bowerman 1930-6-3 235 Contra Costa North Road 1.9 miles from North Gate 167 Comment
  UC692545  Claytonia exigua subsp. exigua Mary L. Bowerman 1932-3-12 1113 Contra Costa Alamo Canyon (50 ft above stream) Alamo Canyon; Mount Diablo 365 Comment
  CAS-BOT-BC439173  Claytonia exigua subsp. exigua Elsie Zeile 1909-4-18 s.n. Contra Costa Redwood Peak Comment
  JEPS43278  Claytonia gypsophiloides Edw. L. Greene Jun 1892 Contra Costa Mount Diablo Comment
  UC83787  Claytonia gypsophiloides C. F. Baker 1903-4-28 2817 Contra Costa Mitchell's Canyon; Mt. Diablo Comment
  JEPS112034  Claytonia parviflora subsp. parviflora D. G. Kelch 2003-3-21 03 .46 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  UC1745431  Claytonia parviflora subsp. parviflora Annetta M. Carter, Leo Bowerman 1935-6-1 872 Contra Costa Mt. Diablo. N-facing slope of main ridge running W from peak. 975 Comment
  UC1948961  Claytonia parviflora subsp. parviflora William J. Ferlatte, L. Maynard Moe 1970-4-27 1232 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC692653  Claytonia parviflora subsp. parviflora Mary L. Bowerman 1933-5-3 1967 Contra Costa Mountain Springs Canyon Mount Diablo (just below the deer trough (Pioneer Road)) Comment
  UC1618110  Claytonia perfoliata Donald G. Nelson 1937-3-30 466 Contra Costa along Marsh Creek Rd. between Claytonville and Byron Comment
  CHSC21635  Claytonia perfoliata subsp. perfoliata Willis Ball 1975-3-9 488 Contra Costa Contra Loma Regional Park. In area #8. On n facing slope ca. 550 yds sw of main parking lot ca. 780 yds w of Contra Loma Blvd. 137 Comment
  UC517966  Claytonia perfoliata subsp. perfoliata John Thomas Howell 1931-3-10 5755 Contra Costa 7 mi from Clayton (on Livermore road, e side of Mt. Diablo); Mt. Diablo Comment
  UC7914  Claytonia perfoliata subsp. perfoliata J. Burtt Davy 1895-4-7 983 Contra Costa Antioch Comment
  SEINET5336417  Claytonia perfoliata subsp. perfoliata C. M. Fryer 1948-4-11 6 Contra Costa In shady soptes, Mt. Diablo. Comment
  UC1050389  Clematis heracleifolia var. davidiana N. Floy Bracelin 1941-9-28 1703 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC91357  Clematis lasiantha V. Rattan 1883-4-1 s.n. Contra Costa Martinez. Comment
  UC692087  Clematis lasiantha Mary L. Bowerman 1935-6-1 3100 Contra Costa gully e. Mitchell-Pine Divide; Mt. Diablo 975 Comment
  RSA0028269  Clinopodium vulgare Barbara Ertter, David Gowen 2012-6-9 21018 Contra Costa Lower Vollmer Peak Trail paralleling South Drive, southeastern Tilden Park in Berkeley Hills. 426 Comment
  RSA408401  Collinsia bartsiifolia var. bartsiifolia H. de Forest 1930-4-6 s.n. Contra Costa [Unspecified] Comment
  UC1301183  Collinsia heterophylla Helen K. Sharsmith 1962-4-18 4949 Contra Costa vicinity of Martinez (near McEwen Road); San Francisco Bay Region 106 Comment
  UC1733835  Collinsia heterophylla Kay H. Beach 1941-4-30 1079 Contra Costa 5 mi W of Byron; Marsh Creek Road 30 Comment
  UC691584  Collinsia sparsiflora var. collina Mary L. Bowerman 1932-3-12 1112 Contra Costa Alamo Canyon , Alamo Canyon (Mount Diablo) 365 Comment
  UC26651  Collinsia sparsiflora var. sparsiflora Harley P. Chandler 1901-3-21 852 A Contra Costa Martinez Comment
  SEINET3860930  Collomia diversifolia David Gowen 2005-5-28 395 Contra Costa Mt. Diablo State Park, on Meridian Ridge Rd. (dirt fire road), east of Murchio Gap.; 0 Comment
  UCSB12513  Conium maculatum Grah, Nancy 1962-4-14 Contra Costa 0.1 mile on Tappan Lane morth of Tarry Lane, Orinda Comment
  UCD58755  Convolvulus simulans Glen Holstein 2007-5-1 s.n. Contra Costa Near entrance to Roddy Ranch Golf Course at southeast edge of Antioch. There is a large stock pond about 100 m NW of the entrance. The collection was in disked pasture 100 m west of the pond. Comment
  UC2027882  Conyza canadensis Barbara Ertter, Chris Thayer 1996-10-25 15370 Contra Costa Northwest flank of Mount Diablo, east end Northgate Trail from North Gate Road to Diablo Foothills Regional Park. Comment
  CAS-BOT-BC32964  Cordylanthus nidularius John Thomas Howell 1942-7-19 17044 Contra Costa NE of Deer Flat, Mt. Diablo Comment
  CAS-BOT-BC287940  Coreopsis calliopsidea Dr. Kellogg No date on label 63 Contra Costa Unspecified Comment
  UC1818988  Cornus glabrata Barbara Ertter, M. L. Bowerman, L. Schultheis, Kevin Hintsa 1995-10-22 14538 Contra Costa Three Springs Trail on northeast side of Mt. Diablo, at stream crossing north-facing slope. Comment
  UC692511  Cornus glabrata Mary L. Bowerman 1931-5-28 904 Contra Costa Pine Canyon Mt. Diablo (gully at e. end of Castle Rock Farm); , Pine Canyon Comment
  UC407389  Coronopus didymus Ira L. Wiggins 1930-4-18 4595 Contra Costa e end of Jersey Island, Fallow cornfield Jersey Island Comment
  UC2028555  Cortaderia selloana Barbara Ertter 1998-11-15 16459 Contra Costa North side Mount Olympia on north side Mount Diablo. Comment
  CAS-BOT-BC453357  Cotoneaster lacteus P. F. Zika; B. Ertter 2007-5-11 22968 Contra Costa Near Arlington Boulevard and Brewster Drive, city of El Cerrito (SnFrB = San Francisco Bay Area) 210 Comment
  JEPS99943  Cotoneaster pannosus G. Smick 2003-6-6 GAS 218 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2032803 Image available Cotula australis Doran, Andrew Scott 2012-3-20 673 Contra Costa Brooks island loading dock, North side of island. Comment
  CDA37279  Cotula coronopifolia D. G. Kelch 2011-3-31 11 .072 Contra Costa Carquinez Strait Region; Richmond, near Point Pinole Regional Park. Comment
  CHSC23342  Cotula coronopifolia Willis Ball 1975-3-26 508 Contra Costa Contra Loma Regional Park. In area #1. On s side of lake ca. 50 yds. e of restroom facilities. 30 Comment
  UC2028452  Cotula coronopifolia Barbara Ertter with Joanne Kerbavaz 2000-8-20 17503 Contra Costa Frog Pond on southeast side of Mount Diablo Comment
  JEPS99543  Crassula aquatica Mary Bowerman 1975-9-14 Contra Costa Mount Diablo, Chase Pond. Comment
  UC692557  Crassula aquatica Mary L. Bowerman 1935-6-21 3154 Contra Costa e. Turtle Rock pool; Mt. Diablo Comment
  CHSC21629  Crassula connata Willis Ball 1975-4-19 521 Contra Costa In area #8 ca. 450 yds s of main parking lot ca. 750 yds w of Conta Loma Blvd. Contra Costa Regional Park. 76 Comment
  UC1607510  Cressa truxillensis Barbara Ertter with CNPS members 1992-1-19 10895 Contra Costa n.w. corner Concord Naval Weapons Station (Hastings Slough); Hastings Slough Comment
  UCD150913  Cressa truxillensis James A. Neilson Jr. 1972-11-2 3616 Contra Costa Walnut Creek drainage. Elevation estimated in Google Earth by label maker. 1 Comment
  UC692616  Crocanthemum scoparium var. vulgare Mary L. Bowerman 1932-4-9 1332 Contra Costa from near Rock City to ridge to Wall Point; Mount Diablo Comment
  CDA35288  Croton californicus F. J. Brucato 1962-8-21 Contra Costa Antioch, Wilbur Ave, 1 mile west of Hwy 24. 0 Comment
  SEINET7716179  Croton californicus Chesnut, Drew 1889-4-18 Contra Costa Antioch 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
  JEPS108226  Cryptantha decipiens David Gowen 2005-5-6 282 Contra Costa Mt. Diablo State Park. Rocky outcrops on the south side of North Peak. Comment
  UC691403  Cryptantha microstachys Mary L. Bowerman 1934-4-28 2546 Contra Costa w end Oyster Ridge; Mount Diablo 457 Comment
  JEPS116916  Cryptantha microstachys David Gowen 2009-4-4 982 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
  UC691346  Cryptantha muricata Mary L. Bowerman 1933-5-2 1938 Contra Costa below Pioneer Camp; Mount Diablo 762 Comment
  UC691348  Cryptantha muricata Mary L. Bowerman 1933-5-18 2129 a Contra Costa Mount Diablo Comment
  UC691349  Cryptantha muricata Mary L. Bowerman 1934-4-21 2536 Contra Costa Muir Area 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
  CDA33351  Cuscuta japonica Yost 2008-8-21 PDR# 1454250 Contra Costa El Sobrante; 5709 Skyview Place (near Richmond city limits?) 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
  UC613060  Cuscuta salina var. major C. W. Sharsmith 1933-9-15 477 Contra Costa near Carquinez Straits (adjacent to San Pablo Bay); San Pablo Bay Comment
  UC562483  Cuscuta subinclusa Joseph P. Tracy 1932-9-10 10789 Contra Costa Franklin Canyon 152 Comment
  UC691857  Cuscuta subinclusa Mary L. Bowerman 1933-9-3 2418 Contra Costa s of Meridian-North Peak saddle; Mount Diablo Comment
  CDA15228  Cynara cardunculus G. F. Hrusa, D. Crowe 1998-5-8 14357 Contra Costa Sacramento Delta; Dow Chemical at Pittsburg. Comment
  CDA4534  Cynara cardunculus T. C. Fuller 1957-10-2 399 -57 Contra Costa Antioch. 0 Comment
  CAS-BOT-BC299742  Cynara cardunculus John Thomas Howell 1953-3-15 28922 Contra Costa Danville Comment
  UC2013066  Cynara cardunculus Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14927 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  OBI73070  Cynara cardunculus subsp. flavescens David J. Keil, with Barbara Ertter et al. 2000-6-18 28817 Contra Costa Mount Diablo State Park. North Gate Road. Ca. 0.5 miles south of park boundary 195 Comment
  JEPS111843  Cynoglossum grande D. G. Kelch 2005-2-28 05 .10 Contra Costa Vaca Canyon Alhambra Valley Road 165 Comment
  UC1063875  Cynoglossum grande R. W. Lundh 1933-3-14 213 Contra Costa 3 1/2 mi. n. Lafayette (Canada del Hambre); Concord Quad., Canada del Hambre 152 Comment
  CDA43393  Cynosurus echinatus D. G. Kelch 2012-5-27 12 .074 Contra Costa Carquinez Strait Region; Pinole Valley Park. Comment
  CAS-BOT-BC114612  Cyperus eragrostis John Thomas Howell; Gordon H. True 1972-6-29 48936 Contra Costa Along ditches on Byron Hot Springs Road SE of Byron. Comment
  UC1606358  Cyperus eragrostis Barbara Ertter, Brad Olson 1991-9-28 10848 Contra Costa s. end San Pablo Reservoir (between Orinda and El Sobrante) 97 Comment
  SEINET11752107  Cyperus eragrostis Unknown 1940-1 90 Contra Costa banks at upper end of San Leandro Lake near mouth of Redwood Creek 130 Comment
  SEINET3909446  Cyperus eragrostis K. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4982 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough. SE portion of Bethel Slough.; 0 610 Comment
  UC1157919  Cyperus eragrostis Olive Dyer 1936-9-5 29 W Contra Costa 1/2 mi. above San Pablo Ave. Wildcat Creek Comment
  JEPS108221  Cystopteris fragilis David Gowen 2005-4-30 276 Contra Costa Morgan Territory Regional Preserve. Growing on stream edge, east of Condor Trail. Comment
  CDA29567  Danthonia californica D. G. Kelch, Troy MacGregor 2009-5-1 9 .289 Contra Costa Carquinez Strait; Fernandez Ranch in valley bottom along Christie Rd. Comment
  CDA1575  Danthonia californica var. californica D. G. Kelch 2002-5-24 2 .02 Contra Costa Carquinez Strait; Crockett. On hill S of San Pablo Ave ~0.4 miles W of Carquinez Bridge. Comment
  UC1790262  Datura stramonium Rudolf Schmid 2005-8-15 2005 -2 Contra Costa 16 Edwin Fr., Kensington, CA 94707-1022 169 Comment
Read comments
Apr 2 2012
  JEPS112311  Datura wrightii Andrew G. Murdock 2004-5-28 308 Contra Costa Hercules - Carbon, along Highway 4 Comment
  CDA965  Daucus pusillus D. G. Kelch 2005-6-14 5 .333 Contra Costa East Bay; San Pablo. North Alvarado Park, south of San Pablo Dam Rd. Comment
  UCD130661  Deinandra corymbosa Beecher Crampton 1950-6-20 596 Contra Costa Richmond Comment
  CAS-BOT-BC294013  Deinandra kelloggii Alice Eastwood 1927-5-19 14445 Contra Costa Byron Springs Comment
  CAS-BOT-BC294025  Deinandra kelloggii James I. McMurphy 1909-5-21 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC291805  Deinandra lobbii H. M. Hall 1930-6-18 12791 Contra Costa South of Pittsburg Comment
  UC635349  Delphinium H. L. Mason 1925-3-10 1301 Contra Costa Mount Diablo; along lower canyon slopes Comment
  RSA400096  Delphinium californicum Thekla Mohr 1917-07 3245 Contra Costa Mount Diablo Comment
  JEPS20340  Delphinium californicum W. L. Jepson 1918-6-3 7587 Contra Costa n slopes of mt Mt. Diablo, Donner Canyon (by dead streamlet in bottom of canyon) 685 Comment
  SEINET12087146  Delphinium decorum J. T. Howell 1931-1 5758 Contra Costa Shaley slope in chaparral, 7 mi E of Clayton, Mt. Diablo region Comment
  LA207422  Delphinium hansenii H. Lewis; Carl Epling 1947-5-4 703 Contra Costa Marsh Creek Road, 5.8 mi. E of Creek Park Rd Comment
  JEPS105715  Delphinium hansenii subsp. hansenii David Gowen 2004-5-10 57 Contra Costa Round Valley Regional Preserve.North-facing slope above the main road through the park, ca. 1/2 mile west of the entry. Comment
  CAS-BOT-BC10306  Delphinium hesperium Mrs. E. C. Wright 1917-6-1 s.n. Contra Costa Mt. Diablo Comment
  JEPS120270  Delphinium hesperium subsp. hesperium Barbara Ertter with David Gowen 2012-6-9 21022 Contra Costa at junction of Seaview Trail and road into EBMUD land north of Vollmer Peak, southeastern Tilden Park in Berkeley Hills Comment
  SEINET11268200  Delphinium hesperium subsp. hesperium Barbara Ertter 1998-5-13 16137 Contra Costa In hills south of Pittsburg, head of SE branch of Loughler Loop Trail.; 0 305 Comment
  UC2028329  Delphinium hesperium subsp. hesperium Barbara Ertter with Richard K. Brummitt 1998-5-13 16137 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, head of SE branch of Loughler Loop Trail. Comment
  CAS-BOT-BC10009  Delphinium hesperium subsp. pallescens R. D. Stone 1983-5-17 510 Contra Costa Extreme northern end of the Jackson Ranch, near Alameda County line ca. 9 mi. NE of Livermore and 1 mi. NNE of Brushy 182 Comment
  CAS-BOT-BC10011  Delphinium hesperium subsp. pallescens John Thomas Howell 1934-4-8 11824 Contra Costa South of Antioch Comment
  POM203038  Delphinium hesperium subsp. pallescens J. T. Howell 1934-4-8 11824 Contra Costa South of Antioch Comment
  CAS-BOT-BC10149  Delphinium nudicaule Miss Mary Leolin Bowerman 1933-6-14 2284 Contra Costa Mount Diablo, Inner Black Hills: second gully west of north spur Comment
  CAS-BOT-BC9901  Delphinium nudicaule Rimo Bacigalupi 1926-4-30 1353 Contra Costa Summit of Mount Diablo Comment
  UC536012  Delphinium patens Laurence S. Jones 1934-4-8 58 Contra Costa w slope of mt approximately 3 mi surface distance from peak; Mt. Diablo 609 Comment
  UCD96542  Delphinium patens P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo Summit. Comment
  HSC47898  Delphinium patens H. Lewis, Carl Epling 1944-5-6 Contra Costa 5.7 mi. S of Marsh Creek Rd. on Beck rd. to Livermore Comment
  RSA624911  Delphinium recurvatum John A. Churchill 1974-4-15 s.n. Contra Costa Between Route K4 and railroad at Holey Road Comment
  CAS-BOT-BC17030  Delphinium variegatum Miss Mary Leolin Bowerman 1913-5-22 3652 Contra Costa Mount Diablo. Rock City 518 Comment
  CAS-BOT-BC11025  Dendromecon rigida Howard E. McMinn 1922-5-30 30 Contra Costa Crest of Moraga Ridge Comment
  HSC8594  Dendromecon rigida D. A. Shally 1965-4-18 32 Contra Costa Canyon, 1.5 mi. NE of Canyon Store on 'fire trail Comment
  UC60233  Deschampsia cespitosa subsp. beringensis Jos. Burtt Davy 1900-6-7 6667 Contra Costa near Martinez Martinez Comment
Read comments
Sep 27 2007
  UC2070612  Deschampsia cespitosa subsp. holciformis Barbara Ertter with Chris Thayer, Dianne Lake et al. 2001-5-26 17657 Contra Costa Stamm Unit of Antioch Dunes National Wildlife Refuge east of Antioch. Comment
  UC1024732  Deschampsia danthonioides Leo Whitney 1935-4-21 3057 Contra Costa 4 mi. e. Corral Hollow Comment
  UC650562  Deschampsia danthonioides Ira L. Wiggins 1930-4-17 4576 Contra Costa 1/4 mi. s. Byron Comment
  UC692394  Deschampsia danthonioides Mary L. Bowerman 1935-6-28 3175 Contra Costa 300 yds. e. of meridian fence line Meridian Peak summit (Mt. Diablo); Mt. Diablo 487 Comment
  UC2028470  Deschampsia danthonioides Barbara Ertter with Joanne Kerbavaz 2000-8-20 17498 Contra Costa South side Mount Diablo, smaller pool downstream from Chase Pond Comment
  UC1050948  Diascia barberae N. Floy Bracelin 1942-8-9 2243 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  POM212448  Dicentra chrysantha Joseph A. Ewan 1933-10-15 8030 Contra Costa South slope of Mt. Diablo 1067 Comment
  CDA29039  Dichelostemma capitatum D. G. Kelch 2006-5-7 6 .158 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  JEPS64178  Dichelostemma capitatum Adele Grant Mar 1914 Contra Costa Antioch Comment
  UC480634  Dichelostemma capitatum Carl Meyer 1928-2-22 297 Contra Costa Mt. Diablo Comment
  UC64062  Dichelostemma capitatum Harley P. Chandler 1901-3-22 854 Contra Costa near Martinez; San Francisco Bay Region Comment
  UC765943  Dichelostemma capitatum R. F. Hoover 1938-2-21 2756 Contra Costa Point Richmond Comment
  RSA0068485  Dichelostemma capitatum subsp. capitatum Katie Gallagher, Nick Jensen 2014-4-26 190 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  UC692031  Dichelostemma congestum Mary L. Bowerman 1931-4-11 711 Contra Costa Pine Canyon, near mouth Mount Diablo Comment
  CAS-BOT-BC502555  Dichelostemma congestum John Thomas Howell 1933-5-14 11258 Contra Costa Hills east of St. Mary's College Comment
  RSA721369  Dichondra donelliana Barbara Ertter, Gary Schoolcraft 1996-4-7 14574 Contra Costa Pont San Pablo in west Richmond. Comment
  CDA36457  Dimorphotheca sinuata Deviney 2011-9-1 PDR# 1641230 Contra Costa Brentwood; Balfour Rd. near Fairview Rd. 0 Comment
  RSA697529  Dipsacus fullonum J. Vlahos 1934-8-1 s.n. Contra Costa Contra Costa County Hills. Comment
  UCD137497  Dipsacus fullonum P. B. Kennedy 1917-2-8 s.n. Contra Costa Craigmont. Comment
  UCD159358  Dipsacus sativus D. S. Park 2010-6-22 143 Contra Costa Wildwood canyon. Along trailside. Ditch/waterway. Small population. 80 Comment
  JEPS78104  Dirca occidentalis G. W. Zamzow 1973-2-23 126 Contra Costa Wildcat Canyon East Bay Regional Park Comment
  RSA40099  Dirca occidentalis L. S. Rose 1948-3-9 s.n. Contra Costa Head of Wildcat Creek, Berkeley Hills 457 Comment
  UC872740  Dirca occidentalis Lewis S. Rose 1939-1-24 39002 Contra Costa head of Wildcat Canyon Berkeley Hills 426 Comment
  RSA603002  Dirca occidentalis Joseph A. Ewan 1934-3-10 8643 Contra Costa 2 miles below Orinda Road bridge, Wildcat Canyon Comment
  SEINET6957398  Dirca occidentalis Lorin I. Nevling 1996-2-15 343 Contra Costa Huckleberry Botanic Regional Preserve, above Huckleberry Trail about 1/2 way down trail, northeast-facing slope, under stunted Quercus agrifolia woodland. "Western Leatherwood." 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
  UCSB27473  Dirca occidentalis Havlik, Neil 1969-7-10 Contra Costa Along the West Ridge Trail about one-half mile from Skyline Gate, Redwood Regional Park, Oakland Hills 396 Comment
  UC3560  Disporum hookeri unknown 1862-5-16 1099 Contra Costa s of Mount Diablo Comment
  UC792336  Disporum hookeri J. A. Rattenbury 1948-4-13 111 Contra Costa on s side of highway above creek 1/2 mi e of Oakland Tunnel 213 Comment
  SEINET10558207  Distichlis spicata var. stolonifera Alan A. Beetle 1941-6-24 Beetle 1752 Contra Costa Point Richmond on San Francisco Bay, common in wet sandy places. Comment
  CDA39011  Dittrichia graveolens D. G. Kelch 2011-9-23 11 .75 Contra Costa Carquinez Strait Region; Martinez Train Station. Comment
  JEPS111737  Dittrichia graveolens D. G. Kelch 2004-12-4 04 .346 Contra Costa Rodeo Shore 2 Comment
  UC1039585  Dodecatheon clevelandii subsp. patulum Herbert L. Mason 1925-2-28 1260 Contra Costa 1/2 mi e Rodeo; e of Rodeo Comment
  UC673358  Dodecatheon clevelandii subsp. patulum Herbert L. Mason 1925-2-28 1260 Contra Costa 1/2 mi e Rodeo; e of Rodeo Comment
  RSA6497  Dodecatheon clevelandii subsp. patulum D. D. Keck 1933-4-2 1997 Contra Costa Vasco Rd., south of Vasco School. Comment
  RSA461371  Dodecatheon hendersonii J. T. Howell 1931-3-10 5756 Contra Costa East side of Mt. Diablo 7 miles from Clayton on Livermore road. Comment
  SEINET8561944  Dodecatheon hendersonii P. Del Monte 1976-3-28 s.n. Contra Costa Oakhill Lane, 1 mile above junction with Morgan Territory Road. 305 Comment
  UCSB24739  Dodecatheon hendersonii Rieser, R. 1966-4-4 Contra Costa On Tarry Lane, 8 miles from intersection of Sleepy Hollow Lane, Orinda. 152 Comment
  UC1050373  Dolichandra unguis-cati N. Floy Bracelin 1942-7-4 1384 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California 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
  UC1051468  Downingia insignis Herbert L. Mason 1952-4-14 14267 Contra Costa 3.5 mi s Byron Comment
  UC1188741  Downingia insignis John H. Weiler 1959-4-11 5950 Contra Costa 1.5 mi s Byron (on the e side of the road) Comment
  UC407372  Downingia insignis Ira L. Wiggins 1930-4-17 4570 Contra Costa 0.25 mi s Byron Comment
  UC766347  Downingia insignis R. F. Hoover 1941-4-12 4839 Contra Costa 1 mi n Lone Tree Valley Comment
  RSA424714  Downingia insignis Aaron Liston 1987-4-27 670 -1 Contra Costa 3 miles S of Byron. Comment
  UC1733838  Downingia insignis Kay H. Beach 1941-4-30 1082 Contra Costa 7 Comment
Read comments
Feb 4 2013
  SEINET3147638  Downingia ornatissima L. S. Rose 1940-4-30 40258 Contra Costa 4 mi S of Antioch 30 Comment
  UC691090  Drymocallis glandulosa var. wrangelliana Mary L. Bowerman 1931-4-19 748 Contra Costa Mitchell Canyon Mount Diablo, Mitchell Canyon Comment
  UC691093  Drymocallis glandulosa var. wrangelliana Mary L. Bowerman 1930-6-18 343 Contra Costa Dan Cook Canyon Mount Diablo, Dan Cook Canyon Comment
  CAS-BOT-BC428218  Dudleya cymosa subsp. paniculata John Thomas Howell 1942-5-24 16967 A Contra Costa Eagle Peak, Mt. Diablo Comment
  UC692560  Dudleya cymosa subsp. paniculata Mary L. Bowerman 1931-6-17 925 Contra Costa e side Riggs Canyon Comment
  SJSU10392  Echinochloa crus-galli J. E. Cox 1976-11-26 Contra Costa right of way of Dolores E Bay Municipal Utilities District, Lafayette Comment
  UC2028441  Echinochloa crus-galli Barbara Ertter with Chris Thayer 1996-10-25 15364 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park Comment
  CAS-BOT-BC197106  Echinochloa crus-galli R. E. Frenkel 1963-8-23 274 Contra Costa On the lot in front of Market Plaza Center on Highway 21, Alamo 79 Comment
  UC1606287  Egeria densa Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10864 Contra Costa just w Antioch marina (accessed from marina); Dow Wetlands Preserve Comment
  RSA0011839  Elaeagnus angustifolia E. C. Van Dyke 1941-10-4 s.n. Contra Costa East of Antioch Comment
  UC692607  Elatine californica Mary L. Bowerman 1935-7-22 3181 Contra Costa s side Meridian Peak (Chase Pond, by old Government trail); Mount Diablo 548 Comment
  UC1618280  Eleocharis macrostachya Barbara Ertter, Brad Olson 1991-9-28 10836 Contra Costa S end of San Pablo Reservoir, between Orinda and El Sobrante 91 Comment
  SBBG122783  Elodea canadensis B. Ertter, B. Olson 1991-9-28 10841 Contra Costa S end of San Pablo Reservoir, between Orinda and El Sobrante 91 Comment
  UC756639  Elymus G. L. Stebbins Jr. 1946-6-9 3656 Contra Costa 2 mi e El Cerrito (near Mira Vista Country Club) Comment
  RSA108336  Elymus X gouldii Frank W. Gould 1941-7-4 1303 Contra Costa On wastelands along Bay just north of Albany race track. 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
  UCD149009  Elymus caput-medusae D. Kelch; Troy McGregor; Ed Biffin 2010-6-1 10. 226 Contra Costa Mt. Diablo. Knobcone Point Road. 542 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
  UC38136  Elymus glaucus J. Burtt Davy April 1897 Contra Costa Point Isabel Comment
  CDA6126  Elymus multisetus D. G. Kelch 2007-5-12 7 .291 Contra Costa Carquinez Strait; Franklin Ridge, S of Hwy 4 at McEwen Rd. Comment
  CAS-BOT-BC228538  Elymus multisetus Mary L. Bowerman 1935-5-25 3067 Contra Costa Mount Diablo. Meridian Peak south of the summit 1066 Comment
  CAS-BOT-BC204318  Elymus trachycaulus subsp. trachycaulus Roxana S. Ferris 1924-6-14 4089 Contra Costa Summit of Mt. Diablo Comment
  JEPS96227  Elytrigia intermedia subsp. intermedia Barbara Ertter with Lynne Hosley and Sid Cowles 1992-6-7 11084 Contra Costa along rd. to quarry e. of Round Top Sibley Volcanic Regional Preserve; Oakland Hills, Sibley Volcanic Regional Preserve 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
  UC672376  Emmenanthe penduliflora Herbert L. Mason 1928-4-22 4434 Contra Costa Sycamore Canyon, south slope of Mount Diablo Comment
  UC84481  Epilobium campestre T. S. Brandegee 1892-6-8 Contra Costa Antioch Comment
  UC204068  Epilobium canum subsp. canum A. D. E. Elmer July, 1903 4620 Contra Costa Mount Diablo Comment
  UC2042945  Epilobium canum subsp. canum Barbara Ertter with Laura Fujii 1989-10-29 8895 Contra Costa Las Trampas Regional Wilderness W of Danville. Comment
  CAS-BOT-BC166163  Epilobium canum subsp. canum L. R. Abrams 1910-10-8 4338 Contra Costa Mt. Diablo near Wall Pt. 457 Comment
  CAS-BOT-BC166827  Epilobium canum subsp. latifolium A. D. E. Elmer 1903-7-1 4620 Contra Costa Mount Diablo Comment
  UC125391  Epilobium ciliatum subsp. ciliatum Katharine Brandegee 1907-7-4 Contra Costa marsh Martinez Comment
  UC1818995  Epilobium ciliatum subsp. ciliatum Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14632 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
  UC2028972  Epilobium ciliatum subsp. ciliatum Barbara Ertter 2000-7-16 17392 Contra Costa lower Pine Creek in Diablo Foothills Regional Park. Comment
  UCD105799  Epilobium ciliatum subsp. ciliatum Terri Williamson 1990-5-22 72 Contra Costa 212 Poshard St. Pleasant Hill. 12 Comment
  CDA9496  Epilobium pygmaeum D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .22 Contra Costa Byron Airport. Comment
  UC692135  Equisetum X ferrissii Mary L. Bowerman 1938-9-17 3720 Contra Costa Willow Spring; Mt. Diablo Comment
  JEPS111943  Equisetum telmateia subsp. braunii D. G. Kelch 2003-8-13 03 .130 Contra Costa Pinole Creek 68 Comment
  UCD63196  Eragrostis curvula George W. Murray 1964-7-24 Contra Costa Along dry roadside cut, 1 to 2 miles E of Clayton, Marsh Creek Road. Comment
  UC1152689  Eragrostis curvula var. curvula George W. Murray 1964-7-24 Contra Costa 1 to 2 mi. e. Clayton (Marsh Creek Rd.) Comment
  CDA4553  Erechtites glomeratus D. G. Kelch 2005-5-5 5 .218 Contra Costa Carquinez Strait Region; Point Pinole - Giant Marsh. Giant Salt Marsh. Comment
  UC1118629  Ericameria arborescens R. W. Lundh 1932-8-29 153 Contra Costa 2/3 mi n of Eagle Point; Mt. Diablo Quadrangle 457 Comment
  UC1118630  Ericameria arborescens R. C. Wilson 1935-3-13 128 Contra Costa 1.5 mi w of Cave Pt.; Mt. Diablo Quadrangle 563 Comment
  UC691864  Ericameria arborescens Mary L. Bowerman 1933-9-9 2438 Contra Costa ridge above Frog Pond; Mt. Diablo Comment
  JEPS31295  Ericameria linearifolia Elsa Kraeger 1926-3-7 Contra Costa w side Mt. Diablo Comment
  POM196004  Ericameria linearifolia R. Raven 1929-3-31 s.n. Contra Costa Marsh Creek Canyon Comment
  UC1543101  Ericameria linearifolia Donald G. Nelson 1937-4-18 503 Contra Costa on March Creek Road in canyon between Clayton and Byron (near stream along highway, dry sandy clearing near wood) Comment
  UC1614256  Ericameria linearifolia Charles M. Belshaw 1935-6-10 697 Contra Costa Morgan Territory Rd. e. side of Mt. Diablo Comment
  UC36557  Ericameria linearifolia F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  UC36562  Ericameria linearifolia State Survey 1054 Contra Costa Mt. Diablo Comment
  CDA4941  Erigeron philadelphicus T. C. Fuller 1961-7-6 7370 Contra Costa South end of Antioch Bridge, Antioch. 0 Comment
  UC1543059  Erigeron philadelphicus var. philadelphicus Donald G. Nelson 1938-4-24 566 Contra Costa 1 mi n Mount Diablo (Marsh Creek Highway) Comment
  JEPS108352  Erigeron philadelphicus var. philadelphicus David Gowen 2005-3-31 220 A Contra Costa Valley east of Sibley Regional Preserve boundary. Growing along stream. Comment
  SBBG21151  Eriodictyon californicum V. Haraden 1941-7-18 17 Contra Costa near Nortonville 121 Comment
  UC24044  Eriodictyon californicum W. H. Brewer 1862-5-22 1133 Contra Costa ne Monte Diablo; ne of Monte Diablo Comment
  UC2029056  Eriogonum angulosum Barbara Ertter with Delia Taylor 2003-6-22 18226 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, ridge south of Arata Overlook Trail NE of park headquarters east of Somerville Road. Comment
  CDA19124  Eriogonum fasciculatum R. Fonseca 2001-7-2 PDR P 088326 Contra Costa San Francisco Bay Area; Vicinity of El Camino Pablo, Moraga. 0 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
  JEPS112016  Eriogonum fasciculatum subsp. foliolosum Dean G. Kelch and Andrew G. Murdock 2004-3-19 AGM 233 Contra Costa Hercules - Carbon. Comment
  JEPS56891  Eriogonum gracile W. L. Jepson 1898-10-18 Contra Costa Deer Flat Mt. Diablo Comment
  UC692049  Eriogonum gracile Mary L. Bowerman 1930-9-27 468 Contra Costa West base spring Mount Diablo Comment
  RSA720837  Eriogonum gracile Barbara J. Ertter, Mary L. Bowerman 1994-6-19 12847 a Contra Costa Mt Diablo State Park east of Walnut Creek, roadside near lower summit parking lot 1128 Comment
  UC692048  Eriogonum gracile var. gracile Mary L. Bowerman 1931-9-12 1038 Contra Costa spur jutting into west fork of Mitchell Canyon Mount Diablo, Mitchell Canyon 838 Comment
  UC692150  Eriogonum inerme Mary L. Bowerman 1933-6-7 2256 Contra Costa North Peak Ridge Mt. Diablo, North Peak Ridge 1021 Comment
Read comments
May 14 2019
  JEPS116767  Eriogonum luteolum var. luteolum David Gowen 2006-7-5 634 Contra Costa North of Morgan Territory Regional Preserve. Steep chaparral slope on east side of Hog Canyon (Sycamore Creek). Comment
  SEINET8349867  Eriogonum nudum Barbara Ertter 1997-8-18 15766 Contra Costa Antioche Dunes (USFWS National Wildlife Refuge) on San Joaquin River east of Antioch, southwest corner of refuge north of railroad tracks in former vineyard. Comment
  CAS-BOT-BC268908  Eriogonum nudum var. auriculatum Mary L. Bowerman 1931-9-12 1037 Contra Costa Mount Diablo. Mitchell Canyon: Spur jutting out into west fork 838 Comment
  SEINET530763  Eriogonum nudum var. auriculatum Paul Opler 2007-6-23 Contra Costa Point Molate. 19 Comment
  UC692046  Eriogonum nudum var. auriculatum Mary L. Bowerman 1931-9-12 1037 Contra Costa Mitchell Canyon, spur jutting out into w fork Mount Diablo 838 Comment
  CAS-BOT-BC268912  Eriogonum nudum var. auriculatum Annetta Carter 1940-6-22 1601 Contra Costa Mount Diablo. Lime Ridge 274 Comment
  UC1795738  Eriogonum nudum var. auriculatum Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14675 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay; grassland/scrub at northeast corner of area. Comment
  UC1167551  Eriogonum nudum var. psychicola R. W. Thorp 1958-8-20 20 Contra Costa Antioch Comment
Read comments
Aug 24 2011
  CAS-BOT-BC267442  Eriogonum truncatum John Thomas Howell 1934-4-8 11816 Contra Costa 10 miles from Clayton on Marsh Creek Road Comment
  CAS-BOT-BC267444  Eriogonum truncatum Mary L. Bowerman 1933-5-25 2198 Contra Costa Mount Diablo. Alamo Canyon: above Wilsons' barn Comment
  JEPS56301  Eriogonum truncatum M. K. Curran May 1886 Contra Costa Antioch Comment
  UC692153 Image available Eriogonum truncatum Mary L. Bowerman 1936-6-20 3413 Contra Costa Knoll west of Mt. Zion, north end. Comment
  CAS-BOT-BC298505  Eriophyllum confertiflorum Mary L. Bowerman 1933-6-3 2224 Contra Costa 2 miles by road from North Gate Comment
  UCD132150  Eriophyllum confertiflorum P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  JEPS99951  Eriophyllum confertiflorum var. confertiflorum G. Smick 2003-5-13 GAS 187 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC196644  Eriophyllum jepsonii J. W. Congdon 1896-5-29 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC300983  Eriophyllum lanatum var. achilleoides E. E. Stanford 1930-5-24 1513 Contra Costa Marsh Creek Canyon Comment
  UC691662  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1935-5-30 3097 a Contra Costa Eagle Point ridge = between the two n ridges which converge at Twin Peaks; Mt. Diablo, Eagle Point ridge 350 Comment
  UC691687  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1933-5-3 1979 Contra Costa due s of summit Meridian peak; Mt. Diablo, Meridian Peak 731 Comment
  UC691730  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1933-6-7 2266 Contra Costa Large w fork of Curry Cave canyon; Mount Diablo, Curry Cave canyon Comment
  UCD132203  Eriophyllum lanatum var. achilleoides P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  CAS-BOT-BC300976  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1938-6-14 3687 Contra Costa Mount Diablo. 0.3 mile below Muir Area 960 Comment
  JEPS34592  Eriophyllum lanatum var. achilleoides W. L. Jepson 1918-6-5 7608 Contra Costa on the n peak Mt. Diablo Comment
  JEPS34593  Eriophyllum lanatum var. achilleoides W. L. Jepson 1918-6-5 7609 Contra Costa on the n peak Mt. Diablo Comment
  UC606750  Eriophyllum staechadifolium Edward Lee 1936-4-19 1990 Contra Costa near summit of island San Francisco Bay, Red Rock Comment
  UC692708  Erodium botrys Mary L. Bowerman 1931-3-14 571 Contra Costa Windy Point Mount Diablo Comment
  UC2032834  Erodium cicutarium Doran, Andrew Scott 2012-3-20 704 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  UC606753  Erodium cicutarium Edward Lee 1936-4-19 1994 Contra Costa Red Rock San Francisco Bay 54 Comment
  UCSB12514  Erodium cicutarium Grah, Nancy 1962-4-14 Contra Costa 0.6 mile north of Tarry Lane on Tappan Lane; Orinda 243 Comment
  UC202739  Erodium macrophyllum Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  UC35196  Erodium macrophyllum V. King Chesnut 1888-4-14 Contra Costa Moraga Valley Comment
  UC606754  Erodium moschatum Edward Lee 1936-4-10 1995 Contra Costa Red Rock San Francisco Bay 54 Comment
  CDA38330  Eryngium armatum Chas. Lasser 1960-4-21 s.n. Contra Costa Pittsburg. 0 Comment
  UC691871  Eryngium castrense Mary L. Bowerman 1935-6-28 3174 Contra Costa s. Meridian Peak summit (300 yds. e. of meridian fence line); Mt. Diablo 487 Comment
  UC692318  Eryngium castrense Mary L. Bowerman 1935-6-28 3169 Contra Costa Mt. Diablo, Chase Pond 548 Comment
  UC2026171  Eryngium castrense Barbara Ertter with Tony Morosco 1996-1-15 14547 Contra Costa Mount Diablo (southeast side) trail from Curry Point to Frog Pond; edge of Sheepherder Pond. Comment
  UC2062646  Eryngium jepsonii Barbara Ertter 2002-11-11 18081 Contra Costa Round Valley Regional Preserve east of Mount Diablo. Comment
  SEINET9111554  Eryngium vaseyi var. castrense Lincoln Constance, Alava, Reino and Bacigalupi, Rimo 1958-6-6 3661 Contra Costa Open country 3 miles southeast of Byron, San Joaquin Valley 11 Comment
  CAS-BOT-BC40774  Erysimum capitatum J. H. Thomas 1953-4-25 3010 Contra Costa Antioch sand hills along San Joaquin River, 0.2 mile west of Antioch Bridge. Comment
  UC1034902  Erysimum capitatum G. B. and R. P. Rossbach 1938-6-5 859 Contra Costa steep southerly slope near summit; Mt. Diablo Comment
  UC691082  Erysimum capitatum Mary L. Bowerman 1931-3-7 551 Contra Costa Indian Ceremonial Springs Mount Diablo Comment
  CAS-BOT-BC40756  Erysimum capitatum G. B. Rossbach 1955-3-20 571 Contra Costa Upper south slope of Mount Diablo. 1005 Comment
  CAS-BOT-BC40760  Erysimum capitatum Mary L. Bowerman 1935-4-26 2915 Contra Costa Mount Diablo. West of the ridge west of Indian Ceremonial Spring, just below the Old Stage Road. 1005 Comment
  CAS-BOT-BC40763  Erysimum capitatum John Thomas Howell 1926-3-7 1672 Contra Costa Mount Diablo. Near the summit on south side. Comment
  RSA102133  Erysimum capitatum var. angustatum G. B. Rossbach 1955-3-13 570 Contra Costa Along tidal estuary of San Joaquin River just E of Antioch 24 Comment
  RSA39907  Erysimum capitatum var. angustatum P. A. Munz 1947-10-8 12205 Contra Costa Antioch 8 Comment
  RSA102142  Erysimum capitatum var. capitatum G. B. Rossbach 1955-3-20 571 Contra Costa Mt Diablo. 1006 Comment
  UC10536  Erysimum capitatum var. capitatum J. Burtt Davy and E. L. Greene 1895-4-7 996 Contra Costa Antioch Comment
  UC10566  Erysimum capitatum var. capitatum J. Burtt Davy 1895-4-7 996 Contra Costa foothills Antioch Comment
  UC2046327  Erythranthe nasuta Barbara Ertter with Alan Prather 2003-6-7 18210 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, Coyote Trail. Comment
  CAS-BOT-BC402989  Eschscholzia californica Peter H. Raven 1950-7-5 2497 Contra Costa Above Nortonville Comment
  JEPS51776  Eschscholzia californica W. L. Jepson 1907-4-27 2643 Contra Costa San Ramon Valley Comment
  SEINET11263885  Eschscholzia californica Barbara Ertter, Tony Morosco 1996-7-27 15039 Contra Costa Cardinet Oaks Road at crossing of Donner Creek.; 0 335 Comment
  CAS-BOT-BC402985  Eschscholzia californica A. A. Heller 1908-4-16 8891 Contra Costa Hills east of Antioch 22 Comment
  UC125913  Eschscholzia californica Katharine Brandegee 1907-6-16 Contra Costa bet. Antioch and Marsh Creek Comment
  POM253322  Eschscholzia californica subsp. californica A. A. Heller 1938-4-9 15018 Contra Costa 3 miles southwest of Antioch. Comment
  RSA31770  Eschscholzia californica var. crocea A. A. Heller 1938-4-9 15018 Contra Costa 3 miles southwest of Antioch. Comment
  RSA39848  Eschscholzia californica var. crocea P. A. Munz 1947-10-8 12190 Contra Costa Antioch 12 Comment
  UC1618303  Eucalyptus globulus Barbara Ertter, Brad Olson 1993-10-30 12293 Contra Costa w. of R.R. tracks n. of mouth of Pinole Creek (along R.R. track at edge of salicornia marsh, San Pablo Regional Shoreline); San Pablo Regional Shoreline Comment
  UC1789218  Eucalyptus tereticornis Barbara Ertter 1993-11-13 12318 Contra Costa Sibley Volcanic Regional Preserve in Oakland Hills S of Orinda, pine & eucalypt forest on south side of Round Top, ca 1500 ft.; locally established tree with peeling bark. Comment
  UC2028112  Eucrypta chrysanthemifolia var. chrysanthemifolia Barbara Ertter with Christopher Baysdorfer 1998-5-10 16110 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, along Ohlone Trail. Comment
  UCD142375  Euphorbia crenulata Morris Halperin 1929-4-21 s.n. Contra Costa St. Mary's College Campus. Comment
  UC2028283  Euphorbia oblongata Barbara Ertter 1998-6-20 16245 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, roadside near Old Borges Ranch. Comment
  UC2032843  Euphorbia oblongata Doran, Andrew Scott 2012-3-20 714 Contra Costa Trail down from highest point of Brooks Island. South east part of Island. Comment
  CDA18802  Euphorbia oblongata B. Case 2000-4-2 PDR 031733 Contra Costa San Pablo. 0 Comment
  HSC83431  Euphorbia oblongata William E. Davis 1981-4-23 Contra Costa Martinez, along Franklin Creek in John Muir National Historic Site. Comment
  CHSC75081  Euphorbia peplus Roger Thom 1987-5-24 15 Contra Costa 1510 Carmel Dr. Walnut Creek. Rose garden. 30 Comment
  JEPS111697  Eurybia radulina D. G. Kelch 2004-4-25 04 .116 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Hill Southwest of large cottonwood. West of Martinez at gated end of Scenic Dr 50 Comment
  UC2031442  Eurybia radulina Barbara Ertter 1990-11-11 9710 Contra Costa NW Contra Costa County: Carquinez Straits Regional Park east of Crockett Comment
  UCD159505  Euthamia occidentalis D. S. Park 2010-9-11 253 Contra Costa Waterfront Rd. Growing in ditch along roadside. Disturbed. Wet. 5 Comment
  UC692354  Festuca californica Mary L. Bowerman 1935-5-3 2953 Contra Costa hillside below Jungle of the Garden Gods; Mount Diablo, Rock City Ridge 472 Comment
  UC2028572  Festuca microstachys Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15521 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  JEPS127231  Festuca microstachys var. pauciflora Lowell Ahart, Josephine Guardino 2016-4-19 20792 Contra Costa 2.3 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest to Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  UC2028969  Festuca myuros Barbara Ertter 2003-2-8 18092 a Contra Costa Richmond Field Station (UC-Berkeley). Comment
  CDA28216  Festuca rubra D. G. Kelch, Andrew G. Murdock 2004-4-11 4 .064 Contra Costa Carquinez Strait; Meadow above Carquinez Scenic Drive between Crockett and Bull Valley Staging Area. Comment
  CDA28219  Festuca rubra A. G. Murdock, D. G. Kelch 2004-5-28 269 Contra Costa Carquinez Strait Region; Pinole Peak. Comment
  JEPS107107  Festuca rubra Barbara Ertter, Brad Olson 1994-5-7 12752 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  UC1103711  Festuca rubra J. P. Tracy 1900-3-24 615 Contra Costa Point Richmond San Francisco Bay Region 15 Comment
  UC691811  Foeniculum vulgare Mary L. Bowerman 1931-10-5 1052 Contra Costa Marsh Creek Rd. near saddle by dry streambed Mt. Diablo 274 Comment
  UC2027937  Forestiera pubescens Barbara Ertter with John Ginochio and Mary Bowerman 2001-5-8 17629 Contra Costa Northwest flank of Mount Diablo, tributary of Galindo Creek on south side of knoll SW of Mount Zion. Comment
  UC692002  Fritillaria affinis Mary L. Bowerman 1931-3-8 561 Contra Costa Mount Diablo, near mouth of Mitchell Canyon Mitchell Canyon; Mount Diablo, Mitchell Canyon Comment
  CAS-BOT-BC136073  Fritillaria affinis Dean William Taylor 1971-3-28 971 Contra Costa Along Morgan Territory Road 304 Comment
  CDA28719  Fritillaria affinis G. D. Barbe, Dick Ramsey 1962-4-19 667 Contra Costa Morgan Territory Road east side of Mount Diablo, 8.5 miles S/ Clayton. 0 Comment
  SEINET3559576 Image available Fritillaria lanceolata Lewis S. Rose 1934-3-7 34047 Contra Costa Mount Diablo. Comment
  JEPS55706  Fritillaria liliacea W. Hirano 1954-3-11 Contra Costa opposite Mira Vista Country Club (at Arlington Avenue); Arlington Avenue Comment
  SBBG122904  Fumaria capreolata B. Ertter 1999-3-21 16486 Contra Costa Miller Knox Regional Park near Pt Richmond Comment
  UC1789195  Fumaria capreolata Barbara Ertter 1999-3-21 16486 Contra Costa Miller Knox Regional Park near Point Richmond, edge of old excavation into rock (southeast of Richmond Ramblers building). Comment
  UCD36030  Galium Beecher Crampton 1949-7-10 477 Contra Costa Contra Cost County, along road in pass through Sobrante Ridge, road from valley of San Pablo to Martinez and Pinole, above Sheldon School. 99 Comment
  UC28155  Galium andrewsii subsp. gatense F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  OBI70584  Galium aparine D. G. Kelch 2007-3-24 7 .091 Contra Costa Ozol; between Port Costa and Martinez near old brick quarry 52 Comment
  UC691539  Galium aparine Mary L. Bowerman 1931-3-21 590 Contra Costa Sycamore Canyon Mount Diablo 335 Comment
  CDA33985  Galium aparine D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .11 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  UC1861822  Galium californicum subsp. californicum Barbara Ertter, Chris Thayer 1995-4-25 14000 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Black Hawk Ridge Rd. at northeast FK of Sycamore Creek, 396 Comment
  JEPS49754  Galium murale Rimo Bacigalupi, and Alice Howard, and Paul Hutchison 1967-3-29 9222 Contra Costa upper reaches of canyon Las Trampas Ridge, Bolinger Canyon (w slope of ridge) 381 Comment
  SBBG27401  Galium murale J. T. Howell 1942-4-26 16953 Contra Costa Redwood Cyn, Oakland Hills Comment
  UC1795726  Galium murale Barbara Ertter, Mary Bowerman, Lisa Schultheis 1995-3-31 13942 Contra Costa Mount Diablo State Park, lower end of Mitchell Canyon south of Clayton, open oak woodland/grassland open flat area on east side of stream not far from trail head. 182 Comment
  UC2042798  Galium murale Barbara Ertter 1991-6-1 10071 Contra Costa Las Trampas Regional Wilderness in hills W of Danville, paved portion of Rocky Ridge Trail ca. 1 from parking lot. Comment
  UCSB6254  Galium nuttallii subsp. nuttallii Keator, Glenn 1959-7-1 Contra Costa Laurel camp on Mt. Diablo Comment
  UC2028293  Galium parisiense Barbara Ertter with Dan Norris 1998-6-18 16221 Contra Costa West of Rock City area on south side of Mount Diablo, saddle on W Fossil Ridge Trail. Comment
  JEPS75526  Galium porrigens var. porrigens P. F. Yorks 1975-6-10 434 Contra Costa on Hampton Rd ca 1.4 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  UC2028292  Gamochaeta ustulata Barbara Ertter, Dan Norris 1998-6-18 16224 Contra Costa Devil's Slide trail from Knobcone Point Road, south side of Mount Diablo, upper end of trail Comment
  SBBG50835  Garrya elliptica M. Siri 1974-5-12 33 Contra Costa above old fire rd, E slope of W ridge, Wildcat Cyn, 0.5 mi N of Leneve, Richmond Comment
  CAS-BOT-BC200635  Garrya elliptica John Thomas Howell 1930-6-15 5304 Contra Costa NE. slope of Grizzley [Grizzly] Peak, Berkeley Hills Comment
  CAS-BOT-BC169947  Garrya fremontii Mary L. Bowerman 1930-6-7 s.n. Contra Costa Meridian Peak Summit Comment
  CDA34087  Genista monspessulana D. G. Kelch, D. A. Weinstein 2011-3-5 11 .032-B Contra Costa Carqionez Strait Region.; Pt. Pinole. Comment
  UC692709  Geranium carolinianum Mary L. Bowerman 1935-5-25 3076 Contra Costa Rhine Canyon Mount Diablo 914 Comment
  JEPS127101  Geranium dissectum Lowell Ahart, Josephine Guardino 2016-4-19 20776 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 Spring USGS 7.5' Quad. Comment
  UC17128  Geranium dissectum W. H. Brewer 1862-4-26 998 Contra Costa 6 mi w Martinez Comment
  UC692706  Geranium dissectum Mary L. Bowerman 1930-6-28 401 Contra Costa Lower Silver Spring Mount Diablo Comment
  UC1057453  Geranium dissectum G. Thomas Robbins 1937-4-25 142 Contra Costa e of La Vista Comment
  JEPS111972  Geranium molle D. G. Kelch 2004-5-9 04 .203 Contra Costa Crockett - Edwards Canyon Upper Edwards Canyon 160 Comment
  UC2029017  Geranium robertianum Barbara Ertter 1999-7-17 16768 Contra Costa Tilden Regional Park, trail to Jewel Lake paralleling Wildcat Creek, through thick woodland growth. Comment
  CDA28932  Geranium rotundifolium D. G. Kelch 2009-6-7 9 .351 Contra Costa Carquinez Strait; Crockett, under Zampa Bridge on N facing slope. Comment
  POM65942  Gilia achilleifolia C. F. Baker 1903-4-28 2951 Contra Costa Mitchell Canyon, Mt. Diablo. Comment
  RSA48957  Gilia achilleifolia Verne Grant, Alva Grant 1948-5-15 8504 Contra Costa Morage ridge, Oakland Hills, near Contra Costa-Alameda county line Comment
  UC2028999  Gilia achilleifolia Barbara Ertter 2000-3-30 16918 Contra Costa North side of Mount Diablo, open rocky area ca halfway down Back Canyon Trail from Murchio Gap. Comment
  JEPS69431  Gilia achilleifolia subsp. achilleifolia W. L. Jepson 1899-4-19 15066 Contra Costa Las Trampas Ridge Comment
  UC908901  Gilia achilleifolia subsp. achilleifolia Herbert L. Mason 1938-5-3 11753 Contra Costa trail between Juniper Camp and Deer Flat (Mount Diablo); , trail bet Juniper Camp and Deer Flat 990 Comment
  UC691602  Gilia achilleifolia subsp. multicaulis Mary L. Bowerman 1930-6-7 286 Contra Costa summit of Meridian Peak Mt. Diablo, Meridian Peak Comment
  UC691646  Gilia capitata subsp. capitata Mary L. Bowerman 1933-6-7 2253 Contra Costa just e of saddle between Meridian and North Peaks; Mount Diablo, just e of saddle btw Meridian and North Peaks Comment
  UC134012  Gilia capitata subsp. staminea C. F. Baker 1903-4-25 2805 Contra Costa Antioch Comment
  UC23834  Gilia capitata subsp. staminea W. H. Brewer 1800-1 1118 Contra Costa n Kirker Pass; n of Kirker Pass Comment
  UC908108  Gilia capitata subsp. staminea Herbert L. Mason 1929-3-31 5159 Contra Costa Antioch; San Joaquin River Comment
  RSA469347  Gilia capitata subsp. staminea H. de Forest 1930-5-6 s.n. Contra Costa [Unspecified] Comment
  POM223334  Gilia clivorum L. S. Rose 1935-5-16 351 75 Contra Costa Mt. Diablo. Comment
  UC2027715  Gilia clivorum Barbara Ertter with Stu Garrett 1997-3-29 15524 Contra Costa West side Mount Diablo, Burma Road above North Gate Road. Comment
  UC691625  Gilia clivorum Mary L. Bowerman 1933-5-3 1976 -2 Contra Costa due s summit Mount Diablo (Chaparral burn (1931)); Mount Diablo, due s of summit 731 Comment
  CAS-BOT-BC266489  Githopsis diffusa Alice Eastwood 1915-5-30 s.n. Contra Costa Mount Diablo Comment
  SEINET10906041  Githopsis diffusa subsp. robusta Bowerman 1931-5-16 BOWERMAN 851 Contra Costa Meridian Peak summit Comment
  UC691592  Githopsis diffusa subsp. robusta Mary L. Bowerman 1935-5-3 2952 Contra Costa below Jungle of the Garden Gods (Rock City Ridge (= Fossil Ridge)); Mount Diablo, Rock City Ridge 487 Comment
  UC635648  Githopsis specularioides H. L. Mason 1928-4-29 4429 Contra Costa Sycamore Canyon, s slopes of Mt. Diablo Mt. Diablo Comment
  SEINET10840136  Githopsis specularioides Mason 1928-4-29 Mason 4429 Contra Costa Sycamore Canyon, south slope of Mount Diablo Comment
  UC1738825  Glyceria occidentalis Dean W. Taylor 1990-4-10 10675 Contra Costa Byron Hot Springs Road, 1 mile S of Holey Road 24 Comment
  UC692667  Glycyrrhiza lepidota Mary L. Bowerman 1931-5-13 842 Contra Costa canyon floor 1 mi above sulphur spring; Mount Diablo, Pine Canyon Comment
  CDA28927  Gnaphalium luteoalbum D. G. Kelch, Abigail Moore, Jessica Kolman 2009-5-3 9 .318 Contra Costa Carquinez Strait; W of 5th St Prairie, Crockett. 0 Comment
  UC32009  Gnaphalium palustre W. H. Brewer 1862-5-26 1172 Contra Costa near Mount Diablo 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
  UCD32381  Godetia amoena var. concolor Beecher Crampton 1950-4-22 523 Contra Costa Contra Costa County, above site of Judsonville, west of old Empire Coal Mine. 167 Comment
  CAS-BOT-BC305226  Grindelia hirsutula Lewis S. Rose 1930-7-22 s.n. Contra Costa Antioch Bridge Comment
  JEPS19400  Grindelia hirsutula G. Thomas Robbins 1937-4-17 135 Contra Costa near Point Richmond Comment
  JEPS25015  Grindelia hirsutula G. Thomas Robbins 1958-10-2 3941 Contra Costa just w Carlson Blvd. (near Stege railroad siding, along Southern Pacific Railroad); Richmond Comment
  JEPS25135  Grindelia hirsutula G. Thomas Robbins 1959-4-26 4003 Contra Costa s of Castro Point (just n of Richmond-San Rafael Bridge, above shore of San Francisco Bay, dry slopes of Potrero Hills); Potrero Hills, Richmond 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
  JEPS78613  Grindelia hirsutula Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3297 Contra Costa Browns Island Botany Cove, Browns Island Comment
  UC1584821  Grindelia hirsutula Jerry Powell 1987-5-6 1497 Contra Costa Point Molate Comment
  UC1610053  Grindelia hirsutula Meredith A. Lane 1986-9-8 3104 Contra Costa at n city limit Pinole (along San Pablo Blvd.) 15 Comment
  CAS-BOT-BC305230  Grindelia hirsutula John Thomas Howell 1930-9-28 5486 Contra Costa Tunnel Road near Oak Spring Comment
  CAS-BOT-BC305238  Grindelia hirsutula W. I. Follett; E. Follett 1981-6-22 s.n. Contra Costa North and east side of Bald Peak, San Pablo Ridge 548 Comment
  SEINET3140051  Grindelia hirsutula M. P. Dunford 1980-7-30 1510- 12 -2 Contra Costa Cultivated specimen from seed collected just W of Antioch Bridge over the San Joaquin River Comment
  SEINET201967  Grindelia hirsutula var. hirsutula G. T. Robbins 1959-4-25 4003 Contra Costa Potero Hills above shore of San Francisco Bay S of Castro Pt. and just N of Richmond-San Rafeal Bridge Richmond 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
  CDA1503  Grindelia stricta D. G. Kelch 1996-10-17 s.n. Contra Costa Carquinez Strait; Pt Edith Marsh Comment
  RSA144688  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
  UC10956  Guillenia lasiophylla Alice Eastwood 1893-5-5 Contra Costa Brentwood Comment
  POM300575  Guillenia lasiophylla Mary L. Bowerman 1932-3-23 1131 Contra Costa Ridge E of Donner Canyon. 274 Comment
  CAS-BOT-BC282858  Hainardia cylindrica E. E. Stanford 1930-5-16 1485 Contra Costa Near Old River Comment
  SD241751  Hedypnois cretica Barbara Ertter 1994-5-23 12809 Contra Costa Point Isabel at S end Richmond, Regional Shoreline and marsh at end of Rydin Road. Weedy area of parking lot. Comment
  JEPS112751  Hedypnois rhagadioloides Dean W. Taylor 2001-3-28 17621 Contra Costa Berkeley Hills, on slopes about 0.75 miles South of Highway 24 at eastern portal of the Caldecot Tunnel 298 Comment
  CAS-BOT-BC306337  Helenium John Thomas Howell 1926-1-16 1626 Contra Costa San Leandro Canyon, Oakland Hills Comment
  UC1594170  Helenium bigelovii Jerry Powell 1991-6-29 1611 Contra Costa intertidal zone at river edge Antioch National Wildlife Refuge Comment
  CDA6433  Helenium puberulum T. C. Fuller 1958-7-3 1270 -58 Contra Costa Carquinez Strait; Highway 4, 4 miles west of Martinez. 0 Comment
  CAS-BOT-BC305319  Helianthella castanea Rimo Bacigalupi 1926-4-30 1351 Contra Costa Summit of 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
  CDA23633  Helianthella castanea D. G. Kelch 2007-9-8 7 .57 Contra Costa Carquinez Strait; Pinole Valley Park. Comment
  JEPS89719  Helianthella castanea Dean William Taylor 1971-3-28 976 Contra Costa at s. gate to Mt. Diablo State Park 609 Comment
  UC1485917  Helianthella castanea H. Stout and T. Wainwright 1980-3-27 1 Contra Costa ca. 1 mi e Morgan Territory Rd.; Mallory Ranch 621 Comment
  UC194923  Helianthella castanea H. M. Hall 1916-5-31 10137 a Contra Costa exposed flat on s side Mt. Diablo Comment
  UC194924  Helianthella castanea H. M. Hall 1916-5-31 10137 b Contra Costa exposed flat on s side Mt. Diablo 1066 Comment
  UC2031433  Helianthella castanea Barbara Ertter 1991-6-1 10074 Contra Costa Las Trampas Regional Wilderness in hills W of Danville Comment
  UC57441  Helianthella castanea H. M. Hall 1901-4-5 1733 Contra Costa Mt. Diablo Region of San Francisco Bay, Mt. Diablo Comment
  UC697185  Helianthus gracilentus Mary L. Bowerman 1932-9-24 1592 Contra Costa knoll w of Twin Peaks; Mount Diablo 457 Comment
  SD71038  Heliotropium amplexicaule Peter Rubtzoff 1967-9-5 5881 Contra Costa University of California campus, Berkeley, on dry hillside at the edge of Haviland Hall parking lot. Comment
  UCD151071  Heliotropium curassavicum var. oculatum James A. Neilson Jr. 1972-11-2 3610 Contra Costa Contra Costa County. Walnut Creek drainage. (Elevation estimated using Google Earth by label maker.) 1 Comment
  UC1050535  Helleborus orientalis N. Floy Bracelin 1944-2-2 1942 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1050190 Image available Helleborus orientalis var. atrorubens N. Floy Bracelin 1945-3-11 2410 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC691497  Helminthotheca echioides Mary L. Bowerman 1936-8-8 3524 Contra Costa w fork Diablo Stock Farm Canyon (= Emmons Cayon, Wattis Ranch); Mount Diablo, Diablo Stock Farm (Wattis Ranch) Canyon, w for 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-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
  OBI16238  Hemizonia congesta subsp. lutescens Robert F. Hoover 1969-9-1 11568 Contra Costa Between San Pablo and Pinole Comment
  UC1392954  Hemizonia congesta subsp. lutescens R. F. Hoover 1969-9-1 11568 Contra Costa between San Pablo and Pinole Comment
  UC201228  Hemizonia congesta subsp. lutescens H. M. Hall 1916-7-20 Contra Costa Giant 7 Comment
  JEPS38255  Hemizonia congesta subsp. luzulifolia W. L. Jepson 1940-6-5 19935 Contra Costa Richmond Comment
  JEPS99532  Hemizonia congesta subsp. luzulifolia Mary L. Bowerman 1993-10-17 Contra Costa Mount Diablo. Regency road. Comment
  UC1536900  Hemizonia congesta subsp. luzulifolia Gordon H. True Jr. 1937-10-12 838 Contra Costa near Pinole 30 Comment
  UC217383  Hemizonia congesta subsp. luzulifolia H. M. Hall 1917-5-27 10314 a Contra Costa Fish Ranch Berkeley Hills Comment
  CDA15271  Hemizonia fitchii G. F. Hrusa, D. Crowe, R. York 1998-7-17 14708 Contra Costa Sacramento Delta; E end of Dow Chemical property, Pittsburg. Comment
  POM360296  Hemizonia fitchii E. E. Stanford 1930-9-20 2100 Contra Costa Near Walnut Creek Comment
  CAS-BOT-BC33236  Hemizonia kelloggii Albert Kellogg 1870-4-22 s.n. Contra Costa near Antioch Comment
  RSA103865  Hemizonia kelloggii M. K. Curran 1886-04 95 Contra Costa Antioch. Comment
  RSA137096  Hemizonia luzulifolia J. T. Howell 1955-8-24 30900 Contra Costa Near Diablo County Club, south base of Mt. Diablo. Comment
  JEPS33797  Hesperevax sparsiflora W. L. Jepson 1923-4-22 9864 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC310192  Hesperevax sparsiflora var. sparsiflora John Thomas Howell 1933-5-14 11259 Contra Costa Hills east of St. Mary's College Comment
  UC2070646  Hesperocnide tenella Barbara Ertter 2003-3-28 18117 Contra Costa Round Valley Regional Preserve, ca 1 mile west of trailhead. Comment
  JEPS32328  Hesperolinon breweri W. L. Jepson 1918-6-3 7568 Contra Costa Donner Canyon Mt. Diablo Comment
  UC692694  Hesperolinon breweri Mary L. Bowerman 1935-6-15 3137 Contra Costa Eagle Point Ridge w 2632; Mount Diablo 762 Comment
  JEPS99502  Hesperolinon micranthum Mary L. Bowerman 1978-5-14 Contra Costa Mount Diablo. Old wagon trail to mine on E face of Eagle Peak Comment
  POM203316  Hesperolinon micranthum J. T. Howell 1931-5-12 6472 Contra Costa Nortonville Comment
  CAS-BOT-BC422499  Hesperomecon linearis Alice Eastwood 1921-4-18 10293 Contra Costa Antioch Comment
  UC187375  Hesperomecon linearis C. F. Baker 1903-4-25 2802 Contra Costa Antioch Comment
  UC856339  Heterodraba unilateralis Alice Eastwood 1914-3-14 3766 Contra Costa Byron Springs Comment
  CAS-BOT-BC143646  Heteromeles arbutifolia H. E. McMinn 1925-1-1 s.n. Contra Costa Head of San Leandro Creek Comment
  CDA21567  Heteromeles arbutifolia D. G. Kelch, Mike Park 2008-9-1 8 .3 Contra Costa Carquinez Strait; Lonetree Point. Rodeo Shoreline Park. Rodeo. Comment
  CAS-BOT-BC310281  Heterotheca grandiflora Walter Knight; Joanne Dean 1978-8-14 3113 Contra Costa Browns Island Comment
  JEPS124458  Heterotheca sessiliflora subsp. echioides Daniel Slakey with CNPS Volunteers 2015-6-29 134 Contra Costa Mt. Diablo State Park, Wall Point. Comment
  CAS-BOT-BC311213  Heterotheca sessiliflora subsp. echioides Walter Knight 1965-9-7 1166 Contra Costa Antioch sand dunes Comment
  CAS-BOT-BC203373  Hibiscus lasiocarpos var. occidentalis Virginia I. Dains; Walter Knight 1986-8-8 5499 Contra Costa Jct Rock S1 & Warner Cut Comment
  JEPS75529  Hirschfeldia incana P. F. Yorks 1976-5-31 509 Contra Costa n. Briones Reservoir (ca. 2 km. s. of Bear Creek Rd. on Hampton Rd. in Hampton Natural Reserve); Hampton Natural Reserve 200 Comment
  UC16313  Hoita orbicularis McLean March, 1875 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC325835  Holocarpha heermannii David D. Keck 1933-11-2 2624 Contra Costa 5 miles SE of Clayton on Marsh Creek Road just opposite Mt. Diablo Comment
  CAS-BOT-BC325839  Holocarpha heermannii R. Bacigalupi 1922-9-24 s.n. Contra Costa Fields between Clayton and Mitchell Canyn, Mt. Diablo 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
  POM179765  Holocarpha heermannii J. T. Howell 1930-9-28 5499 Contra Costa 6.3 miles from Byron on the Marsh Creek Road. Comment
  POM52821  Holocarpha heermannii A. D. E. Elmer 1903-07 4613 Contra Costa Mount Diablo Comment
  UC691541  Holocarpha heermannii Mary L. Bowerman 1930-6-3 232 Contra Costa Comment
  CAS-BOT-BC320226  Holocarpha macradenia David J. Powers 1974-10-6 1001 Contra Costa 100-400 feet east of highway 80, and 100-300 yards south of Appian Way, Pinole Comment
  SJSU7097  Holocarpha macradenia D. J. Powers 1974-10-6 1001 A Contra Costa 100-300' E of Interstate Hwy 80 & 100-300 yards S of Appian Way, Pinole 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
  UC913074  Holocarpha obconica D. D. Keck and J. Clausen 1933-10-27 2567 Contra Costa 1.6 mi w Byron (1.4 mi from junction with Vasco Road); ; 1.6 mi. W of Byron, 1.4 mi. from jct. w/ Vasco Road, Contra Costa Co. Comment
  CAS-BOT-BC320256  Holocarpha obconica David D. Keck 1933-10-27 2565 Contra Costa Kellogg Creek, 11 mi. from U.S. 48 on Vasco Road Comment
  RSA22274  Holocarpha obconica subsp. obconica L. S. Rose 1938-10-28 38309 Contra Costa Marsh Creek, 8 miles W of Byron. 61 Comment
  CAS-BOT-BC320323  Holocarpha virgata L. S. Rose 1941-10-16 41467 Contra Costa 2 miles west of Byron 33 Comment
  CAS-BOT-BC324612  Holocarpha virgata David D. Keck 1933-11-2 2623 Contra Costa 5 miles east of Clayton on Marsh Creek Road just opposite Mt. Diablo Comment
  CAS-BOT-BC324614  Holocarpha virgata H. M. Hall 1930-6-18 12794 Contra Costa Stockton Ranch, south of Antioch Comment
  CHSC84517  Holocarpha virgata subsp. virgata John Dittes 2003-6-28 2003 -69 Contra Costa San Joaquin Valley; foothills, ca. 13.3 air-mile north by northeast of Livermore, ca. 3.4 air-miles south by southwest of Brentwood, ca. 1.3 air-miles southeast of Marsh Creek Reservoir Gauging Station. 73 Comment
Read comments
Dec 25 2008
  UC523545  Holocarpha virgata subsp. virgata David D. Keck 1933-11-2 2623 Contra Costa 5 mi e Clayton (on Marsh Crek Road, just opposite Mt. Diablo) Comment
  CDA29576  Hordeum brachyantherum D. G. Kelch, Troy MacGregor 2009-5-1 9 .288 Contra Costa Carquinez Strait; Fernandez Ranch in valley bottom along Christie Rd. Comment
  CDA948  Hordeum brachyantherum subsp. brachyantherum D. G. Kelch 2006-5-5 6 .132 Contra Costa East Bay; Wildcat Canyon Regional Park. Near Wildcat Canyon Road terminus. Comment
  UC756652  Hordeum brachyantherum subsp. brachyantherum G. L. Stebbins Jr. 1946-6-9 3654 Contra Costa 2 mi E of El Cerrito (near Mira Vista Country Club) Comment
  JEPS100008  Hordeum marinum S. O'Neil 2003-5-8 SEO 27 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD85808  Hordeum marinum subsp. gussoneanum Brandegee 1916-5-9 s.n. Contra Costa Byron Springs. Comment
  UCD85869  Hordeum marinum subsp. gussoneanum P. B. Kennedy 1916-5-11 s.n. Contra Costa Richmond District, Grand View Terrace. Comment
  JEPS100007  Hordeum murinum G. Smick 2003-3-27 GAS 93 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  SEINET10595762  Hordeum murinum Ball 1975-3-2 BALL 456 Contra Costa In area #4. On beach ca. 30 yds. S of dam on E side of lake. Accompanying species include Bromus rigidus, etc. Soil sandy clay. 32 Comment
  CDA29160  Hordeum murinum subsp. leporinum D. G. Kelch 2006-5-7 6 .145 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  JEPS75538  Hordeum murinum subsp. leporinum P. F. York 1974-4-28 146 Contra Costa on Hampton Road ca 1.9 km s Bear Creek Road (n of Briones Reservoir, Hampton Road Natural Reserve); Hampton Road Natural Reserve, n of Briones Reservoir 200 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
  CAS-BOT-BC532052  Horkelia californica var. frondosa Joseph Andorfer Ewan 1934-5-20 8926 Contra Costa Russelmann Park, n. side Mt. Diablo Comment
  CAS-BOT-BC532054  Horkelia californica var. frondosa V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley Comment
  UC1618342  Hypericum calycinum Barbara Ertter 1993-6-25 11907 Contra Costa 1/4 mi s of junction of Lomas Cantadas (1/4 mi s of Tilden miniature steam trains, Oakland-Berkeley Hills, Grizzly Peak Boulevard); Oakland-Berkeley Hills, Grizzly Peak Boulevard 487 Comment
  CAS-BOT-BC312937  Hypochaeris glabra Ira L. Wiggins 1930-4-18 4596 Contra Costa Levee at east end of Jersey Island 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
  CAS-BOT-BC311408  Hypochaeris radicata R. E. Frenkel 1964-2-22 359 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  RSA762307  Hypochaeris radicata William J. Ferlatte, L. M. Moe 1970-4-27 1252 Contra Costa San Francisco Bay, Red Rock Island. Comment
  RSA0013874  Ibicella lutea G. Thomas Robbins 1959-8-1 4114 Contra Costa Recently completed frontage road just south of Mt. Diablo Blvd. (about 0.5 mi. E of concrete bridge at Charles Hill and about 0.2 mi. W of junction of Hidden Valley Road), about 2 mi. W of Lafayette. 145 Comment
  SEINET10544610  Ilex David B. Dunn 1947-12-30 Dunn 3592 Contra Costa Cultivated plants at the University of California, Berkeley Campus. In flower in December beside the Life Science Building. Comment
  UC1304178  Iris douglasiana Leo Brewer 1965-5-4 Contra Costa ridge w Siesta Valley (w-facing side of ridge, exposed to fog from Golden Gate, on county line between Contra Costa and Alameda counties) 441 Comment
  UC1789185  Iris foetidissima Barbara Ertter 2000-5-20 17025 Contra Costa Sibley Volcanic Regional Preserve, Oakland Hills, trail on ridge behind interpretative center. Comment
  UCD138695  Iris longipetala L. S. Kimsey 1996-5-2 s.n. Contra Costa Wildcat Canyon. Comment
  CAS-BOT-BC324752  Iva axillaris Evelina Cannon 1896-5-22 s.n. Contra Costa Giant Station Comment
  CAS-BOT-BC324754  Iva axillaris J. W. Congdon 1893-7-30 s.n. Contra Costa Martinez 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-BC101879  Juglans californica J. W. Congdon 1894-10-16 s.n. Contra Costa Ft. Mt. Diablo Comment
  JEPS58698  Juglans californica var. hindsii W. L. Jepson 1908-8-16 3087 Contra Costa Walnut Creek Comment
  CAS-BOT-BC102305  Juglans hindsii Barrett Anderson 1987-4-30 3486 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD 125 Comment
  UC2028644  Juglans hindsii Barbara Ertter with Chris Thayer 1996-10-25 15355 Contra Costa Northwest flank of Mount Diablo Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park Comment
  UC691939  Juncus balticus Mary L. Bowerman 1933-9-15 2444 Contra Costa s-face Meridian Peak; Mount Diablo, , Hunt Spring 762 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
  UC2028264  Juncus bufonius var. bufonius Barbara Ertter 1999-6-12 16716 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
  UC2028973  Juncus bufonius var. bufonius Barbara Ertter with Brad Olson et al. 2000-6-2 17300 Contra Costa north side Brushy Peak Regional Preserve NE of Livermore. Comment
  UC1819050  Juncus bufonius var. congestus Barbara Ertter, Lisa Schultheis 1995-4-27 14009 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
  UC2028305  Juncus bufonius var. congestus Barbara Ertter, Susan D'Alcamo 1998-6-12 16200 Contra Costa Along Curry Canyon Road just east of Curry Point, south side of Mount Diablo. Comment
  UC2028966  Juncus bufonius var. congestus Barbara Ertter with Brad Olson et al. 2000-6-2 17305 Contra Costa Brushy Peak Regional Preserve NE of Livermore, at south base of Brushy Peak. Comment
  JEPS112447  Juncus effusus var. pacificus A. G. Murdock 2004-5-28 280 Contra Costa Refugio Valley 120 Comment
  POM300635  Juncus mexicanus Mary L. Bowerman 1933-9-15 2443 Contra Costa Mount Diablo; Hunt Spring. 762 Comment
  JEPS112438  Juncus occidentalis D. G. Kelch 2004-4-26 04 .144 Contra Costa Point Pinole 30 Comment
  JEPS112437  Juncus patens D. G. Kelch 2004-5-7 04 .200 Contra Costa Ca ada del Cierbo Ca ada del Cierbo 40 Comment
  UC691915  Juncus patens Mary L. Bowerman 1933-11-9 2469 Contra Costa West Sheepherders' Spring Mount Diablo 701 Comment
  UC691938  Juncus patens Mary L. Bowerman 1932-11-26 1674 Contra Costa between Corral Spring and Boulevard Spring; Mount Diablo, Patens Springs Comment
  UCD141766  Juncus patens M. Wiesendanger 1926-5-1 1465 Contra Costa near Richmond. Comment
  JEPS112448  Juncus phaeocephalus var. paniculatus A. G. Murdock 2004-5-28 276 Contra Costa Refugio Valley 120 Comment
  JEPS67063  Juncus phaeocephalus var. paniculatus W. L. Jepson 1918-6-15 7675 Contra Costa Wild Cat Creek Comment
Read comments
Jul 28 2008
  JEPS112444  Juncus tenuis D. G. Kelch 2003-4-3 03 .366 Contra Costa Cummings Skyway 115 Comment
  UC2029085  Juncus xiphioides Barbara Ertter 2000-7-16 17407 Contra Costa Pine Creek on WNW base of Mount Diablo Comment
  POM300638  Juncus xiphioides Mary L. Bowerman 1931-5-15 865 Contra Costa Lower Silver Spring. Comment
  JEPS48340  Juniperus californica W. L. Jepson 2642 Contra Costa head of Mitchell Creek Mt. Diablo (near saddle of divide); , head of Mitchell Creek Comment
  SEINET191616  Juniperus californica L. S. Rose 1941-3-22 41052 Contra Costa Mt Diablo 914 Comment
  UC1134276  Juniperus californica R. W. Lundh 1932-8-26 147 Contra Costa Laurel Dell Camp Mt. Diablo Mt. Diablo Quadrangle, Mt. Diablo 899 Comment
  UC486488  Juniperus californica Mrs. G. Earle Kelly 1932-7-20 Contra Costa Laurel Dell Mt. Diablo, Laurel Dell Comment
  UC77  Juniperus californica Harley P. Chandler 1901-4-5 980 A Contra Costa Mt. Diablo Comment
  UCR162417  Juniperus californica David A. Charlet, T. Charlet, Elizabeth Charlet 1991-5-28 710 Contra Costa Mt. Diablo, 'Juniper Camp' 875 Comment
  CAS-BOT-BC235875  Keckiella corymbosa A. D. E. Elmer 1903-7-1 4956 Contra Costa Mount Diablo Comment
  SEINET10607073  Koeleria macrantha Virginia E. Long 1933-6-14 Long 223 a Contra Costa Mt. Diablo. On top of grassy ridge between Curry Cave trail canyon & W. fork. 457 Comment
  CAS-BOT-BC273613  Koeleria pyramidata Mary L. Bowerman 1933-5-3 1983 Contra Costa Mount Diablo. Indian Ceremonial Canyon 731 Comment
  CAS-BOT-BC499189  Kopsiopsis strobilacea D. E. Breedlove 1970-1-21 17141 Contra Costa Canyon above Moraga Comment
  CAS-BOT-BC340537  Lactuca serriola Walter Knight; Irja Knight; J. T. Howell; E. McClintock 1978-9-5 3236 Contra Costa Browns Island Comment
  JEPS100180  Lactuca virosa A. Langston 2003-8-26 AL 86 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS3931  Lactuca virosa John Thomas Howell 1943-8-22 19310 Contra Costa near head of San Leandro Creek Canyon 243 Comment
  UC710613  Lactuca virosa John Thomas Howell 1943-8-22 19310 Contra Costa San Leandro Creek Canyon 243 Comment
  CAS-BOT-BC341473  Lagophylla ramosissima James I. McMurphy 1909-5-21 s.n. Contra Costa Antioch Comment
  JEPS112476  Lamium amplexicaule D. G. Kelch 2005-3-11 05 .34 Contra Costa Mt. Wanda - Martinez. Wanda. Fire road climbing North side of mountain 90 Comment
  CAS-BOT-BC412725  Lastarriaea coriacea James McMurphy 1909-5-20 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC337977  Lasthenia californica W. H. Brewer 1862-5-19 1120 Contra Costa North of Kirker's Pass Comment
  CAS-BOT-BC337980  Lasthenia californica James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  POM6192  Lasthenia californica C. F. Baker 1903-4-25 s.n. Contra Costa Antioch Comment
  UC1795667  Lasthenia californica Barbara Ertter, Mary Bowerman et al. 1995-5-7 14060 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, small serpentine patch at road junction Comment
  JEPS10382  Lasthenia californica subsp. californica W. L. Jepson 1931-4-5 15718 Contra Costa adobe flat in hills about Nortonville 457 Comment
  RSA0068474  Lasthenia californica subsp. californica Katie Gallagher, Nick Jensen 2014-4-26 205 Contra Costa Las Trampas Regional Wilderness. 487 Comment
  JEPS18328  Lasthenia conjugens E. L. Greene 1887-4-1 Contra Costa Antioch Comment
  UC194264  Lasthenia conjugens Edward Lee Greene 1887-4-16 Contra Costa Antioch Comment
  UC90073  Lasthenia conjugens T. S. Brandegee Jun 1884 Contra Costa Walnut Creek Comment
  CAS-BOT-BC324463  Lasthenia conjugens Milo S. Baker 1946-4-20 11330 Contra Costa Near Concord Comment
  CAS-BOT-BC324481  Lasthenia ferrisiae Alice Eastwood 1914-3-14 3761 Contra Costa Byron Springs Comment
  UC1184085  Lasthenia fremontii Ren-Hwa Shan 1947-3-23 2013 Contra Costa 3.3 mi s Byron 7 Comment
  RSA516575  Lasthenia fremontii R. C. Bacigalupi, G. Thomas Robbins 1956-3-26 5533 Contra Costa About 2.5 miles S of Byron, just S of S.P.R.R. crossing on road to Bethany. Near head of Italian Slough. 6 Comment
  UCD23266  Lasthenia glabrata Ramona Robison 2003-4-17 s.n. Contra Costa The Pantages property is located in Contra Costa County, north of Highway 4, west of Discovery Bay subdivision and Kellogg Creek, and immediately east of the end of Point of Timber Road. It is on the Woodward Island topographic quad. Comment
  JEPS35366  Lasthenia glabrata subsp. glabrata W. L. Jepson 1923-4-22 Contra Costa Mt. Diablo Comment
  UCD133763  Lasthenia glabrata subsp. glabrata P. B. Kennedy 1925-4-26 s.n. Contra Costa Mt. Diablo. Comment
  RSA31360  Lasthenia glabrata subsp. glabrata Joseph A. Ewan 1935-5-26 9300 Contra Costa E slope Bald Peak, San Pablo Ridge. 549 Comment
  UC697159  Lasthenia glabrata subsp. glabrata Mary L. Bowerman 1933-4-15 1865 Contra Costa Comment
  UC62988  Lasthenia gracilis H. M. Hall 1901-4-5 1744 Contra Costa lower slopes Mt. Diablo Comment
  RSA22273  Lasthenia minor L. S. Rose 1937-3-26 37007 Contra Costa Mountain House; Altamont Pass. 76 Comment
  CAS-BOT-BC213349  Lathyrus jepsonii subsp. californicus Volney Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley Comment
  UC2028326  Lathyrus jepsonii var. californicus Barbara Ertter with Richard K. Brummitt 1998-5-13 16140 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, south leg of Loughler Loop Trail just west of pass over central ridge. Comment
  UC89156  Layia chrysanthemoides C. F. Baker 1903-4-27 2903 Contra Costa Byron Comment
  UC89223  Layia gaillardioides M. K. Curran Contra Costa Mt. Diablo Comment
  CAS-BOT-BC321748  Layia gaillardioides John Thomas Howell 1941-4-6 16176 Contra Costa Deer Flat, Mt. Diablo Comment
  CAS-BOT-BC321078  Layia glandulosa Alice Eastwood; John Thomas Howell 1936-4-19 2150 Contra Costa Antioch sand hills Comment
  UC89240  Layia glandulosa C. F. Baker 1903-4-27 2939 Contra Costa Antioch Comment
  UC912575  Layia glandulosa Herbert L. Mason 1929-3-31 5155 Contra Costa at Antioch (along Sacramento River); along Sacramento River Comment
  UCD133904  Layia glandulosa Annetta M. Carter 1933-4-23 300 Contra Costa above the San Joaquin River, between Antioch Bridge and Antioch. Comment
  CAS-BOT-BC327247  Layia hieracioides David D. Keck 1941-6-5 5307 Contra Costa Berkeley Hills, Fish Creek Rd., 0.25 mi W of E. portal of Broadway Tunnel 335 Comment
  JEPS123331  Layia hieracioides David Gowen with Chris Thayer 2010-4-30 1092 Contra Costa North of Briones Reservoir. West side of Oursan Trail, about midway between junction with Hampton Trail and north end of the dam. 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
  UC1069769  Layia platyglossa C. M. Belshaw 1936-5-8 2064 Contra Costa se slope Mt. Diablo; Mt. Diablo Quad. Comment
  UC30667  Layia platyglossa R. C. Marsh 1900-4-5 Contra Costa Antioch Comment
  UC30670  Layia platyglossa Edw. L. Greene 1892-6-20 Contra Costa Mount Diablo Comment
  POM53355  Layia platyglossa subsp. platyglossa C. F. Baker 1903-5-28 2874 Contra Costa Antioch. Comment
  CAS-BOT-BC274326  Leersia oryzoides Brian Atwater 1978-10-24 BA- 173 Contra Costa Between Bethel Island and Holland Tract Comment
  SACT001393  Leersia oryzoides Malcolm Nobs 1948-9-23 Contra Costa Growing in shallow water along slough bank, just coming to bloom. 7 miles south Kingston. Comment
  UC2027954  Lemna minor Barbara Ertter with Joanne Kerbavaz 2000-8-20 17504 Contra Costa Frog Pond on southeast side of Mount Diablo. Comment
  UC2029080  Lemna minor Barbara Ertter 2000-7-16 17400 Contra Costa Lower Pine Creek in Diablo Foothills Regional Park. Comment
  UC1607680  Lemna minuscula Barbara Ertter, Chris Thayer 1993-5-7 11690 Contra Costa Hopkins Spring 1/2 mi se of Inspiration Point (on Wildcat Canyon Road, East Bay Municipal Utilities District land e of Tilden Park); Hopkins Spring, Wildcat Canyon Road 304 Comment
  UC692107  Lemna minuscula Mary L. Bowerman 1933-11-4 2459 Contra Costa Alder Springs, (most easterly of the springs) Alder Springs; Mount Diablo, Alder Springs 487 Comment
  RSA409611  Lepechinia calycina Robert Gustafson 1985-6-15 3184 Contra Costa 1/2 mile below the summit of Mt. Diablo. Comment
  UC691400  Lepechinia calycina Mary L. Bowerman 1938-5-28 3648 Contra Costa Mount Diablo 853 Comment
  UC691411  Lepechinia calycina Mary L. Bowerman 1932-9-3 1532 Contra Costa Mount Diablo, Muir area: Burn (1931) Comment
  CAS-BOT-BC88703  Lepidium acutidens John Thomas Howell 1933-3-29 10894 Contra Costa Nortonville. Comment
  UCD115332  Lepidium appelianum G. Thomas Robbins 1959-9-13 4162 Contra Costa North edge of Pinole. Comment
  UC1585845  Lepidium dictyotum Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8142 Contra Costa ca 15 air mi sw Stockton (w and adjacent to Clifton Court Forebay, se Contra Costa Co.) Comment
  RSA66572  Lepidium dictyotum var. acutidens J. T. Howell 1933-3-29 10894 Contra Costa Nortonville Comment
  UCD115342  Lepidium didymum Collector unknown Date unknown s.n. Contra Costa Jersey Island. Comment
  CAS-BOT-BC89715  Lepidium latifolium Walter Knight; Joanne Dean 1978-8-14 3170 Contra Costa Brown Island. 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
  UC2070649  Lepidium latifolium Barbara Ertter 2002-8-24 18021 Contra Costa Dunn Creek south of Mount Diablo Mine property on NE base of Mount Diablo. Comment
  RSA66775  Lepidium latipes J. T. Howell 1933-3-29 10907 Contra Costa Nortonville Comment
  UC691078  Lepidium latipes Mary L. Bowerman 1933-4-15 1846 Contra Costa canyon s Arroyo del Cerro; Mount Diablo Comment
  UCD77807  Lepidium latipes Robert E. Preston 1997-3-8 1015 Contra Costa Black Diamond Mines Regional Park, along Stewartsville Trail 91 Comment
  JEPS124454  Lepidium nitidum Daniel Slakey with Randy Morgan 2015-4-3 89 Contra Costa Alkaline grassland on southwest corner at the intersection/curve of Raymond Rd. and Ames St. Comment
  UC10671  Lepidium nitidum J. Burtt Davy 1897-4-17 Contra Costa Point Isabel Comment
  CAS-BOT-BC89894  Lepidium nitidum Alice Eastwood; John Thomas Howell 1936-4-19 2152 Contra Costa 4 miles south of Antioch. Comment
  CAS-BOT-BC89898  Lepidium nitidum Reed C. Rollins 1946-3-25 3044 Contra Costa Western slope of Mount Diablo. Comment
  RSA34733  Lepidium nitidum R. C. Rollins 1946-3-25 3042 Contra Costa Western slope of Mount Diablo. Comment
  RSA8344  Lepidium nitidum L. S. Rose 1933-3-29 33045 Contra Costa Pittsburg Comment
  JEPS16599  Lepidium oxycarpum Edward Lee Greene 1888-4-17 Contra Costa Wildcat Creek Comment
  UC10608  Lepidium oxycarpum J. Burtt Davy 1898-4-8 4263 Contra Costa Danville 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
  CDA37901  Leptochloa fascicularis D. G. Kelch, Mike Perlmutter 2011-9-23 11 .756 Contra Costa Entry to Discovery Bay. Comment
  UC1151682  Leptochloa uninervia Beecher Crampton 1959-10-19 5467 Contra Costa Vasco Rd. just n junction with Mt. Diablo Road (4 mi s of Brentwood) Comment
  UC2027821  Leptosiphon androsaceus Barbara Ertter with Stu Garrett 1997-3-29 15529 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  UC2028986  Leptosiphon ciliatus Barbara Ertter 2000-5-14 17009 Contra Costa Donner Canyon on north side of Mount Diablo, SW end of Falls Trail between Middle Trail and Donner Creek crossing. Comment
  CAS-BOT-BC324113  Lessingia glandulifera var. glandulifera James McMurphy 1908-10-18 s.n. Contra Costa Antioch Comment
  JEPS100183  Lessingia glandulifera var. glandulifera David Gowen 2004-5-11 58 Contra Costa Lime Ridge Open Space; Ridge trail in the N section of the park and S of the water tank Comment
  UCD134065  Lessingia glandulifera var. glandulifera Peter Rubtzoff 1954-9-14 1751 Contra Costa Lower San Joaquin River, E of Antioch. Comment
  UC221462  Lessingia pectinata var. tenuipes Dr. Edward Palmer Aug 17 1892-Aug 20 1892 2678 Contra Costa Byron Hot Springs Comment
  JEPS43231  Lewisia rediviva W. L. Jepson 1921-5-22 9206 Contra Costa a few feet below summit on n side of Mt. Diablo Mt. Diablo 1173 Comment
  JEPS481  Leymus X multiflorus W. L. Jepson 1937-7-2 18445 Contra Costa swale 1/2 mi w Crockett Comment
  UC1103210  Leymus X multiflorus Joseph P. Tracy 1932-9-10 10787 Contra Costa Franklin Canyon North Coast Ranges (head, on Pinole-Martinez Rd) 152 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
  UCD92459  Leymus X multiflorus G. Thomas Robbins; John Weiler 1959-5-23 4026 Contra Costa West side of Brooks Island, San Francisco Bay, Richmond. Comment
  CAS-BOT-BC283732  Leymus condensatus A. A. Beetle 1941-6-24 1751 Contra Costa Pt Richmond on San Francisco Bay Comment
  RSA63664  Leymus condensatus Milo S. Baker 1950-5-22 12226 Contra Costa Roadside between Martinez and Pt. Costa Comment
  CAS-BOT-BC283734  Leymus condensatus W. A. Silveus 1938-7-5 3215 Contra Costa El Cerrito Comment
  RSA108325  Leymus triticoides Frank W. Gould 1941-5-8 1289 Contra Costa Wastelands along Bay at Winehaven (near Richmond) Comment
  UCD87579  Leymus triticoides R. Tofsrud 1947-6-12 176 Contra Costa W of Byron about 4 miles in the 'Arroyo de la Canada. Comment
  UCD87590  Leymus triticoides P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  SEINET10595891  Leymus triticoides Frank W. Gould 1941-5-8 Gould 1290 Contra Costa Wastelands along Bay at Winehaven (near Richmond). Comment
  CAS-BOT-BC451580  Lilaea scilloides Walter Knight 1977-6-12 s.n. Contra Costa Morgan Territory land bank (se. of Mt. Diablo at head of Marsh Creek) 585 Comment
  JEPS21834  Limnanthes douglasii subsp. rosea Bryce G. Decker 1958-4-13 39 Contra Costa junction of Holey Road and Byron Highway Comment
  UC971814  Limnanthes douglasii subsp. rosea Annetta Carter 1941-4-27 1635 Contra Costa 3 mi se Byron Comment
  SEINET6670612  Limnanthes douglasii subsp. striata B. Crampton 1968-3-27 8238 Contra Costa SE corner of County, ca. 3.5 miles south of Byron Comment
  UCD33426  Linanthus Beecher Crampton 1968-3-27 8232 Contra Costa SE corner of County, ca. 3.5 miles south of Byron. Comment
  UC23376  Linanthus androsaceus Brewer 1862-5-22 1139 Contra Costa ne of Mt. Diablo (hills s of Coal Mines) Comment
  JEPS99519  Linanthus androsaceus Mary Bowerman 1977-5-29 Contra Costa Mount Diablo. Russellmann Park. Comment
  JEPS58248  Linanthus bicolor Mary L. Bowerman 1931-3-29 625 Contra Costa n side, 500 ft from top Cave Point; Mount Diablo Comment
  UC1713208  Linanthus bolanderi Mary L. Bowerman 1935-4-26 2905 Contra Costa w of Indian Ceremonial Spring; Mount Diablo 1005 Comment
  UC1047918  Linanthus liniflorus Kay H. Beach 1941-4-30 1083 Contra Costa near Byron Hot Springs Station Comment
  UC1051490  Linanthus liniflorus Herbert L. Mason 1952-4-14 14265 Contra Costa 3.5 mi s Byron Comment
  UC106751  Linanthus liniflorus E. L. Greene Contra Costa Byron Springs Comment
  UC615173  Linanthus liniflorus Beryl O. Schreiber 1932-3-27 155 Contra Costa Byron Hot Springs Comment
  JEPS123317  Linanthus parviflorus David Gowen with Chris Thayer 2010-4-30 1090 Contra Costa North of Briones Reservoir. Rocky area on hill above Oursan Trail just west of its junction with Hampton Trail. Comment
  UC964003  Linanthus pygmaeus subsp. continentalis R. F. Hoover 1939-4-13 4020 Contra Costa w branch Head of Markley Canyon Comment
  UC1819058  Linum bienne Barbara Ertter, Rich Rabeler 1994-6-6 12818 Contra Costa Point Isabel in south Richmond; black cinders on old railroad bed north of Costco; landfill. 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
  UC402493  Lithophragma affine Chestnut and Drew 1889-4-16 Contra Costa Martinez Comment
  RSA0068477  Lithophragma affine Katie Gallagher, Nick Jensen 2014-4-26 201 Contra Costa Las Trampas Regional Wilderness. 487 Comment
  UCSB10858  Lithophragma affine Hayes, Judy 1961-3-29 Contra Costa 1 mile W of Danville on Pixie Lane Comment
  UCSB39455  Lithophragma affine Fritzke, Sue 1980-3-29 Contra Costa 0.5 miles east of the end of Ball Road, in the Shell Ridge Open Space Area, south-east of the rock quarry 124 Comment
  POM274347  Lithophragma affine subsp. affine Lyman Benson 1931-3-18 2663 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 Comment
  CAS-BOT-BC435625  Lithophragma heterophyllum Mary L. Bowerman 1931-3-21 585 Contra Costa Sycamore Canyon Comment
  CHSC107516  Lithophragma heterophyllum D. G. Kelch 2006-5-4 06 .124 Contra Costa Coast Range: Vaca Canyon, on North facing road cut/bank along Alhambra Valley Road. 162 Comment
  CHSC107534  Lithophragma heterophyllum D. G. Kelch 2006-5-4 06 .124 Contra Costa Coast Range: Vaca Canyon, on North facing road cut/bank along Alhambra Valley Road. 162 Comment
  UC2028308  Lithophragma heterophyllum Barbara Ertter, Susan D'Alcamo 1998-6-12 16195 Contra Costa East end Bald Ridge Trail W of Prospectors Gap on north side of Mount Diablo summit. Comment
  JEPS111698  Logfia gallica D. G. Kelch 2004-4-25 04 .121 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Hill Southwest of large cottonwood. West of Martinez at gated end of Scenic Dr 50 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
  JEPS75535  Lolium multiflorum P. F. Yorks 1976-5-31 508 Contra Costa 1.3 to 1.9 km s of Bear Creek Road on Hampton Road in Hampton Road Natural Reserve (n of Briones Reservoir); , n of Briones Reservoir 180 Comment
  UC769868  Lolium multiflorum R. F. Hoover 1937-5-14 2107 Contra Costa Franklin Creek valley Comment
  RSA762301  Lolium perenne subsp. multiflorum William J. Ferlatte, L. M. Moe 1970-4-27 1221 Contra Costa San Francisco Bay, Red Rock Island. Comment
  UCD66482  Lolium temulentum Beecher Crampton 1956-5-14 3408 Contra Costa Southern boundary of Mt. Diablo State Park. Comment
  CAS-BOT-BC271056  Lolium temulentum Mary L. Bowerman 1933-5-17 2096 Contra Costa Branch of Curry Canyon due south of Olafsons barn, Mount Diablo Comment
  JEPS17143  Lomatium dasycarpum subsp. dasycarpum W. L. Jepson 1918-6-3 7579 Contra Costa Donner Canyon Mt. Diablo Comment
  POM132622  Lomatium dasycarpum subsp. dasycarpum H. P. Chandler 1901-4-5 982 Contra Costa Mt. Diablo. Comment
  JEPS17102  Lomatium macrocarpum W. L. Jepson 1909-6-25 3120 Contra Costa Mt. Diablo, Mitchell Rock Comment
  JEPS17116  Lomatium macrocarpum M. K. Curran May 1885 Contra Costa Antioch Comment
  UC691426  Lomatium macrocarpum Mary L. Bowerman 1935-4-17 2837 Contra Costa w. rd. 2 mi. from entrance Mt. Diablo (ridge w. of chaparral) 289 Comment
  UC691428  Lomatium macrocarpum Mary L. Bowerman 1933-4-26 1906 Contra Costa ridge e.-s.e of the peak North Peak; Mt. Diablo 579 Comment
  UC691429  Lomatium macrocarpum Mary L. Bowerman 1933-4-26 1906 Contra Costa e.-s.e. of the peak North Peak ridge (Mt. Diablo); Mt. Diablo 579 Comment
  UC691772  Lomatium macrocarpum Mary L. Bowerman 1931-4-25 781 Contra Costa summit Meridian Peak (Mt. Diablo); Mt. Diablo Comment
  UC692350  Lomatium nudicaule Mary L. Bowerman 1933-6-7 2251 Contra Costa Mt. Diablo, North Peak Saddle Comment
  UC1123054  Lomatium utriculatum C. M. Belshaw 1936-5-12 2105 Contra Costa 1 mi S of Mt. Diablo summit (Tassajero[sic] Road) 335 Comment
  UC691471  Lomatium utriculatum Mary L. Bowerman 1930-6-5 260 Contra Costa 5.8 mi from North Gate (North Road); Mount Diablo 457 Comment
  UC2031434  Lonicera hispidula Barbara Ertter 1991-6-1 10070 Contra Costa Las Trampas Regional Wilderness in hills W of Danville Comment
  JEPS12831  Lonicera hispidula var. vacillans W. L. Jepson 1923-6-10 9988 Contra Costa head of Marsh Creek (Mt. Diablo); Mt. Diablo Comment
  JEPS12841  Lonicera hispidula var. vacillans W. L. Jepson May 23 1891-May 24 1891 Contra Costa Mt. Diablo Comment
  JEPS12847  Lonicera hispidula var. vacillans W. L. Jepson 1894-10-1 Contra Costa towards Redwood Peak; Moraga Valley Comment
Read comments
Aug 9 2011
  CAS-BOT-BC240662  Lonicera interrupta H. E. McMinn 1922-6-2 91 Contra Costa N.E. slope of Mt. Diablo Comment
  UCSB24470  Lonicera interrupta McMinn, Howard 1922-6-2 Contra Costa NE slope of Mt. Diablo Comment
  UC1050675  Lonicera pileata f. yunnanensis N. Floy Bracelin 1941-4-20 1183 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS12852  Lonicera subspicata var. denudata W. L. Jepson 1920-9-6 9080 Contra Costa Donner Canyon, on ridge towards high spring under saddle Mt. Diablo Comment
  JEPS12853  Lonicera subspicata var. denudata W. L. Jepson 1918-6-5 7613 Contra Costa Mt. Diablo, N. Peak, Donner Canyon Comment
  CAS-BOT-BC200900  Lotus R. E. Frenkel 1964-2-5 356 Contra Costa On California Hwy. 21, Market Plaza Center, Alamo 79 Comment
  UC692529  Lotus humistratus Mary L. Bowerman 1932-4-27 1394 Contra Costa canyon w Riggs Canyon (Oyster Ridge, s-face); Mount Diablo, Oyster Ridge 335 Comment
  UC692526  Lotus micranthus Mary L. Bowerman 1931-3-29 616 Contra Costa East Cave Point Ridge Mount Diablo Comment
  UC692528  Lotus micranthus Mary L. Bowerman 1938-6-2 3655 Contra Costa Dan Cook Canyon Mount Diablo 487 Comment
  UC692269  Lotus purshianus var. purshianus Mary L. Bowerman 1938-6-14 3676 Contra Costa 1 mi from North Gate (North Road); Mount Diablo 121 Comment
  UC692571  Lotus scoparius Mary L. Bowerman 1930-6-5 255 Contra Costa 5.8 mi from entrance West road (=North Road); Mount Diablo Comment
  JEPS108217  Lotus strigosus David Gowen 2005-4-27 270 Contra Costa Lime Ridge Open Space. In the southern section of the park on the east side of hill 724. Growing in sandy bare area along chaparral. Comment
  PASA1117  Lotus subpinnatus Annetta Carter 1929-3-31 Contra Costa Near Clayton Comment
  UCSC000383  Lotus wrangelianus A. E. Borell 1928-3-18 27 Contra Costa West slope of Mount Diablo Comment
  UC764598  Lupinus albifrons Robert F. Hoover 1935-3-10 300 Contra Costa Antioch Comment
  LA205021  Lupinus albifrons J. A. Ewan; 1934-3-10 8645 Contra Costa Wildcat Canyon, 2 mi below Orinda Rd bridge, Comment
  SEINET5766808 Image available Lupinus albifrons var. albifrons A. A. Heller 1908-1 8887 Contra Costa Antioch 12 Comment
  UC1129295  Lupinus albifrons var. albifrons C. M. Belshaw 1936-5-8 2059 Contra Costa 2.25 mi e Clayton; Mt. Diablo quad 381 Comment
  UC864974  Lupinus albifrons var. albifrons Lewis S. Rose 1935-5-16 35162 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC201373  Lupinus albifrons var. albifrons Charles Piper Smith 1947-8-8 47709 Contra Costa Crow Creek Canyon Road - San Ramon Summit Comment
  RSA29244  Lupinus albifrons var. albifrons Joseph A. Ewan 1934-3-10 8645 Contra Costa 2 mi. below Orinda Road bridge, Wildcat Canyon. Comment
  UC1795855  Lupinus albifrons var. albifrons Barbara Ertter, Brad Olson, Diane Lake 1996-4-14 14594 a Contra Costa Sycamore Spring Trail off Prospectors Gap Rd., east side Mt. Diablo. 640 Comment
  OBI49327  Lupinus albifrons var. collinus Joseph Andorfer Ewan 1934-3-10 8645 Contra Costa 2 mi below Orinda road bridge, Wildcat Cyn Comment
  JEPS112334  Lupinus arboreus Dean G. Kelch and Andrew G. Murdock 2004-5-21 04 .217 Contra Costa Crocket - Tormey Headlands; County: Contra Costa; Along San Pablo Ave. ~ 1 k. west of Carq. Bridge. Comment
  JEPS25126  Lupinus arboreus G. Thomas Robbins 1959-4-18 3995 Contra Costa near and n Pt. Richmond (above Western Drive, western slopes of the Potrero Hills, Richmond); Richmond, near and n of Pt. Richmond 7 Comment
  UC1818990  Lupinus arboreus Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14670 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay, edge of coastal bluff on south side of Point Molate. Comment
  JEPS112360  Lupinus bicolor Dean G. Kelch and Andrew G. Murdock 2004-5-28 288 Contra Costa Pinole Peak; County: Contra Costa. Comment
  JEPS73600  Lupinus bicolor L. R. Heckard 1971-4-22 2496 Contra Costa along railroad grade near highway 80 crossing e Pinole; e of Pinole Comment
  UC1073382  Lupinus bicolor George B. Rossbach 1955-3-20 324 Contra Costa sw base Mt. Diablo; sw base Mt. Diablo Comment
  UC1300886  Lupinus bicolor Helen K. Sharsmith 1963-4-7 5292 Contra Costa near Oakley (s of Antioch); , near Oakley 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
  UC73195  Lupinus bicolor Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  UC762917  Lupinus bicolor R. F. Hoover 1935-3-10 306 Contra Costa Antioch 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
  UC2028034  Lupinus bicolor Barbara Ertter 1998-4-4 15944 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, SE of Indian Valley School. Comment
  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
  RSA203627  Lupinus bicolor subsp. tridentatus J. T. Howell 1933-5-14 11250 Contra Costa Hills east of St. Marys college Comment
  SEINET10970226  Lupinus bicolor subsp. tridentatus Charles Piper Smith 1922-4-15 Smith 3492 Contra Costa Antioch - Southern Pacific Railroad Depot - 0.5 mi W. Comment
  UCR274616  Lupinus latifolius Daisie Huang 2006-7-18 60718- 05 Contra Costa Pinehurst Road above Moraga Road 156 Comment
  RSA0033773  Lupinus microcarpus Barbara Ertter, Christopher Baysdorfer 1998-5-10 16120 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, quarry area on west side. Comment
  JEPS112376  Lupinus microcarpus var. densiflorus Dean G. Kelch and Andrew G. Murdock 2003-6-2 88 Contra Costa Crockett - Eckley; County: Contra Costa; East of pier at base of cliff. Comment
  JEPS25129  Lupinus microcarpus var. densiflorus G. Thomas Robbins 1959-4-18 3992 Contra Costa along Western Drive near and n Pt. Richmond (western base of Potrero Hills, Richmond); western base of Potrero Hills, n of Pt. Richmond 4 Comment
  OBI59407  Lupinus microcarpus var. densiflorus Barbara Ertter, Elizabeth Neese 1988-4-24 7450 Contra Costa Black Diamond Mines Regional Preserve SW of Antioch, N of E-W part of Black Diamond Trl Comment
  UC1543065  Lupinus microcarpus var. densiflorus Donald G. Nelson 1937-4-24 515 Contra Costa Marsh Creek Road n Byron; Marsh Creek Road Comment
  JEPS25140  Lupinus microcarpus var. microcarpus G. Thomas Robbins 1959-5-16 4010 Contra Costa just n Pt. Orient, Richmond (western base of Potrero Hills, overlooking San Francisco Bay); overlooking San Francisco Bay, Potrero Hills, n of Pt. Orien Comment
  UC1562852  Lupinus microcarpus var. microcarpus Barbara Ertter with Elizabeth Neese 1988-4-24 7453 Contra Costa between and parallel to Nortonville and Somersville roads Black Diamond Mines Regional Preserve sw Antioch; Black Diamond Mines Regional Preserve Comment
  UC201022  Lupinus microcarpus var. microcarpus Katharine Brandegee 1918-6-19 Contra Costa Richmond Annex; El Dorado St. Comment
  UC201037  Lupinus microcarpus var. microcarpus Katharine Brandegee 1918-6-19 Contra Costa Richmond Annex , base of a rocky hill (El Dorado St.) Comment
  JEPS78983  Lupinus microcarpus var. microcarpus Edward Lee with Annetta Carter 1935-6-13 1430 Contra Costa Panhandle Boulevard south Richmond; , Panhandle Boulevard Comment
  RSA0027702  Lupinus microcarpus var. microcarpus Barbara Ertter, John Ginochio, Mary Bowerman 2001-5-8 17628 Contra Costa Northwest flank of Mount Diablo, upper Galindo Creek southwest of Mount Zion. Comment
  UC126998  Lupinus nanus J. Burtt Davy 1897-4-17 Contra Costa Point Isabel Comment
  UC2028033  Lupinus nanus Barbara Ertter 1998-4-4 15944 a Contra Costa Shell Ridge Open Space northwest of Mount Diablo, SE of Indian Valley School. Comment
  UC2028120  Lupinus nanus Barbara Ertter with Richard K. Brummitt 1998-5-6 16089 Contra Costa Lower Donner Canyon Road on north base of Mount Diablo, ca 1/2 miles south of Donner cabin site. Comment
  UCD109076  Lupinus nanus P. B. Kennedy Date Unknown 1311 Contra Costa Grand View Terrace - Richmond District. 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
  SEINET12162895  Lupinus propinquus W. Knight, Knight, I. 1982-1 4459 Contra Costa Tilden Reginoal Park, Berkeley, Comment
  UC1555370  Lupinus succulentus Jerry Powell 1988-4-1 1529 Contra Costa Point Molate Point Molate, West Richmond; West Richmond, Point Molate Comment
  UC691941  Luzula comosa Mary L. Bowerman 1931-2-28 524 Contra Costa n slope Rock City Ridge (= Fossil Ridge, Mount Diablo, near Rock City); Mount Diablo, Rock City Ridge nr Rock City, = Fossil Ridge Comment
  JEPS48958  Luzula macrantha Elsa Kraeger 1926-3-7 Contra Costa South slope Mount Diablo Comment
  JEPS67204  Luzula macrantha W. L. Jepson 1943-4-24 20761 Contra Costa Vicinity San Francisco Bay, Oakland Hills, Moraga Ridge Comment
Read comments
Jan 25 2008
  UC1619946  Lythrum californicum Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10695 Contra Costa Browns Island n. of Pittsburg (near confluence of Sacramento & San Joaquin rivers, opposite Pittsburg Marina, center of w. end of island); Browns Island Comment
  CDA29701  Lythrum hyssopifolia D. G. Kelch, D. A. Weinstein 2009-7-15 9 .495 Contra Costa Carquinez Strait; Point Pinole. Comment
  UC692635  Lythrum hyssopifolia Mary L. Bowerman 1932-11-19 1662 Contra Costa Mount Diablo, Stachys Spring, Mountain Springs Canyon, (below junction of pipes from numbers 3 and 4 club springs) Mountain Springs Canyon; Mount Diablo, Stachys Spring, Mountain Springs Canyon Comment
  UC5897  Maclura pomifera W. G. Klee June 1880 Contra Costa road to Walnut Creek Comment
  JEPS100179  Madia elegans A. Langston 2003-7-9 AL 62 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC697170  Madia elegans Mary L. Bowerman 1936-9-10 3542 Contra Costa Donner Canyon Mount Diablo (by streamlet) 335 Comment
  UC2028300  Madia elegans Barbara Ertter, Susan D'Alcamo 1998-6-12 16191 Contra Costa North Peak Trail south of Prospectors Gap on east side of Mount Diablo summit. Comment
  UC691552  Madia elegans Mary L. Bowerman 1933-5-19 2144 Contra Costa Sulphur Springs Canyon, e fork Mount Diablo 457 Comment
  JEPS99516  Madia elegans subsp. densifolia Mary Bowerman 1978-7-9 Contra Costa Mount Diablo, Russelman Park Comment
  JEPS111711  Madia exigua D. G. Kelch 2004-5-9 04 .205 Contra Costa Crockett - Edwards Canyon; Upper Edwards Canyon 160 Comment
  CAS-BOT-BC344328  Madia exigua T. S. Brandegee 1885-5-1 s.n. Contra Costa Antioch Comment
  JEPS84508  Madia gracilis Jack Stratford 1981-5-18 Contra Costa Huckleberry Trail Huckleberry Botanic Regional Preserve Comment
  UC697158  Madia gracilis Mary L. Bowerman 1933-6-3 2241 Contra Costa Ransom Point Ridge Mount Diablo Comment
  UCD149006  Madia gracilis D. Kelch 2009-5-23 09. 293 Contra Costa Mt. Tamalpais. Ocean View Trail. 114 Comment
  CAS-BOT-BC342983  Madia gracilis John Thomas Howell 1931-5-12 6484 Contra Costa North side of Mt. Diablo Comment
  OBI49199  Madia gracilis Joseph Andorfer Ewan 1934-5-20 8931 Contra Costa Russelmann Park N slope of Mt Diablo Comment
  UC2029060  Madia gracilis 'Barbara Ertter with Save Mount Diablo outing 2003-5-8 18167 Contra Costa Mangini property on knoll west of Mount Zion, NW corner of Mount Diablo. Comment
  JEPS6745  Madia radiata R. F. Hoover 1941-4-12 4836 Contra Costa 1 mi n Lone Tree Valley Comment
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Aug 21 2017
  SD8606  Madia radiata Brandegee Apr 1889 Contra Costa Antioch Comment
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Jan 9 2007
  SEINET11601587 Image available Madia radiata K. Brandegee 1908-4-9 50 Contra Costa Near Antioch Comment
  CDA29210  Madia sativa D. G. Kelch 2008-6-15 8 .247 Contra Costa Carquinez Strait; Crockett hills, S of Cummings Skyway, W of Crockett Blvd. Comment
  POM267969  Madia sativa D. D. Keck 1941-6-5 5310 Contra Costa Berkeley Hills, Fish Creek Road 1/4 mile W of E portal of Broadway Tunnel. 335 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
  CAS-BOT-BC8183  Malacothamnus fasciculatus subsp. fasciculatus Harvey Monroe Hall; F. M. Essig 1916-5-30 10131 Contra Costa Mt. Diablo on the westerly side north of Pine Canyon 290 Comment
  CAS-BOT-BC206332  Malacothamnus fremontii John Thomas Howell; T. H. Kearney 1950-7-5 26635 Contra Costa Hills above Nortonville. Comment
  CAS-BOT-BC206334  Malacothamnus fremontii John Thomas Howell; T. H. Kearney 1950-7-5 26635 Contra Costa Nortonville. Comment
  UC18798  Malacothamnus fremontii Edw. L. Greene 1892-6-20 Contra Costa Mt. Diablo Comment
  UC692618  Malacothamnus fremontii Mary L. Bowerman 1938-6-30 3696 Contra Costa below Blue Oak Flat; Mount Diablo 762 Comment
  UC763002  Malacothamnus fremontii R. F. Hoover 1939-5-20 4107 Contra Costa Head of Markley Canyon Comment
  UC961415  Malacothamnus fremontii John Thomas Howell and T. H. Kearney 1950-7-5 26635 Contra Costa Nortonville Comment
  CAS-BOT-BC204098  Malacothamnus hallii John Thomas Howell; T. H. Kearney 1950-7-5 26634 Contra Costa Mt. Diablo 259 Comment
  POM301021  Malacothamnus hallii Mary L. Bowerman 1933-6-3 2223 Contra Costa 2 miles by road from North Gate Comment
  UC1280806  Malacothamnus hallii H. E. McMinn and E. Maino 1931-4-11 123 Contra Costa Mount Diablo Comment
  UC692619  Malacothamnus hallii Mary L. Bowerman 1936-8-25 3534 Contra Costa n upper farm (on Cowell Cement property.); Mount Diablo, west side Lime Ridge 137 Comment
  UC692621  Malacothamnus hallii Mary L. Bowerman 1938-11-12 3732 Contra Costa Mount Diablo 289 Comment
  UC692676  Malacothamnus hallii Mary L. Bowerman 1933-6-3 2223 Contra Costa 2 mi by road from North Gate; Mount Diablo Comment
  UC692693  Malacothamnus hallii Mary L. Bowerman 1932-9-24 1590 Contra Costa Ridge running w from Twin Peak; Mount Diablo 335 Comment
  CAS-BOT-BC204090  Malacothamnus hallii Volney Rattan 1886-6-14 s.n. Contra Costa Mouth of Pine Canon [Canyon]. Foot of Mount Diablo Comment
  SEINET5047666  Malacothamnus hallii Unknown 1916-5-30 301 Contra Costa Mt. Diablo, Contra Costa County, on the westerly side N of Pine Canon, Comment
  CAS-BOT-BC347391  Malacothrix floccifera Alice Eastwood 1921-6-11 10601 Contra Costa Mt. Diablo Comment
  UC133354  Malacothrix floccifera C. F. Baker 1903-4-28 2948 Contra Costa Marsh Creek Mount Diablo Comment
  UC1795010  Malacothrix floccifera R. K. Brummitt, J. Strother and B. Baldwin 1997-5-27 19608 Contra Costa Mount Diablo, W side, Murchio Gap 800 Comment
  UCD134393  Malacothrix floccifera P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  CDA15229  Malva parviflora G. F. Hrusa, D. Crowe 1998-5-8 14358 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg. Comment
  CDA35747  Malvella leprosa D. G. Kelch, Andrew G. Murdock 2004-7-9 4 .306 Contra Costa Carquinez Strait; Alhambra Creek, Martinez, near Muir gravesite, Arroyo del Hambre. Comment
  UC1606434  Malvella leprosa Barbara Ertter, Brad Olson 1993-10-30 12289 Contra Costa n.e. Rodeo (across R.R. tracks from San Pablo Ave., beach next to jetty) 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
  CHSC21640  Marah fabacea Willis Ball 1975-3-2 466 Contra Costa In area #4. On hill top ca. 50 yds e of large willow trees at ne end of lake. Contra Loma Regional Park. 53 Comment
  UC2028044  Marah fabacea Barbara Ertter 1998-3-1 15924 Contra Costa Diablo Foothills Regional Park, Ridge Trail on ridge east of Old Borges Ranch. Comment
  CHSC28456  Marah oregana Robert A. Schlising 1964-4-2 2667 Contra Costa Berkeley-Oakland Hills. Comment
  CHSC46930  Marah oregana R. A. Schlising 1964-4-2 2697 Contra Costa Berkeley/Oakland Hills. Comment
  SEINET10581732  Marrubium vulgare John T. Middleton 1936-4-18 Middleton 135 Contra Costa Comment
  UC1586020  Marsilea vestita subsp. vestita Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8131 Contra Costa ca. 15 air mi sw Stockton (w and adjacent to Clifton Court Forebay); se Contra Costa Co. Comment
  CHSC23343  Matricaria discoidea Willis Ball 1975-3-26 507 Contra Costa Contra Loma Regional Park. In area #1. All around the restroom facilities at s end of lake. 30 Comment
  JEPS99957  Matricaria discoidea G. Smick 2003-3-27 GAS 91 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA195482  Medicago arabica C. R. Gunn 1963-5-31 2659 Contra Costa Contra Cost County: Tilden Park, Berkeley at intersection of Shasta and Oak Hill Roads Comment
  UC692277  Medicago polymorpha Mary L. Bowerman 1930-6-5 247 a Contra Costa west road (= North Road) 5.8 mi from entrance; Mount Diablo 457 Comment
  CHSC116602  Medicago polymorpha var. polymorpha Lowell Ahart; Josephine Guardino 2016-4-19 20762 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  CAS-BOT-BC271223  Melica californica Mary L. Bowerman 1935-4-17 2829 Contra Costa North Road 2 miles from North Gate, Mount Diablo 237 Comment
  POM300626  Melica californica Mary L. Bowerman 1935-4-22 2883 Contra Costa Ridge west of Pioneer Road (west of Stage Road). East face of ridge; Mount Diablo. 854 Comment
  UCD87145  Melica californica P. B. Kennedy 1916-5-1 s.n. Contra Costa Pinehurst. Comment
  CAS-BOT-BC271219  Melica californica Mary L. Bowerman 1933-5-8 2029 Contra Costa North of Rock City campground, Mount Diablo Comment
  UC2028478  Melica californica Barbara Ertter with Richard K. Brummitt 1998-5-6 16102 Contra Costa Point San Pablo west of Richmond, crest of road to yacht harbor Comment
  SEINET186052 Image available Melica imperfecta Virginia E. Long 1933-6-14 221 a Contra Costa Mt. Diablo On slope SE-E along first west fork rom Curry Creek Trail. 335 Comment
  CAS-BOT-BC281433  Melica imperfecta Mary L. Bowerman 1931-4-18 714 Contra Costa Mount Diablo. Sycamore Canyon: moist bank where the chaparral does not extend down to the trail 335 Comment
  CDA29038  Melica torreyana D. G. Kelch 2006-5-7 6 .164 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  UC1948967  Melica torreyana William J. Ferlatte, L. Maynard Moe 1970-4-27 1249 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC53661  Melica torreyana J. Burtt Davy Apr 1897 Contra Costa Point Isabel Comment
  CAS-BOT-BC262509  Melica torreyana Mary L. Bowerman 1935-5-16 3013 Contra Costa Mount Diablo. Behind Gabriel-Hinks' (east side of North Peak): Wooded gully 289 Comment
  JEPS99542  Melilotus indicus Mary L. Bowerman 1995-6-4 Contra Costa Mount Diablo, North Gate Rd. Comment
  UC407395  Melilotus indicus Ira L. Wiggins 1930-4-18 4599 Contra Costa Jersey Island Comment
  RSA0027699  Mentha aquatica Barbara Ertter 1996-9-19 15292 Contra Costa Antioch Marina. Edge of marsh near parking lot. Comment
  JEPS68981  Mentzelia affinis Edward Lee 1935-3-29 1316 Contra Costa s watershed Kirker Creek; Nortonville Comment
  UC19581  Mentzelia dispersa Edw. L. Greene 1892-6-20 Contra Costa Mt. Diablo Comment
  RSA296862  Mentzelia micrantha W. L. Jepson 1919-6-8 83314 Contra Costa Mt. Diablo 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
  CDA31454  Micropus californicus D. G. Kelch 2006-5-2 6 .21 Contra Costa Carquinez Strait; Fernandez Ranch; W. Christie Rd. Comment
  UC1795729  Micropus californicus var. californicus Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14223 Contra Costa Mt. Diablo southeast of Walnut Creek, north-facing slope north of Curry Point, grassy semishade at edge of oak woodland. 518 Comment
  RSA720807  Micropus californicus var. californicus Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14223 Contra Costa Mt. Diablo southeast of Walnut Creek, north-facing slope north of Curry Point 518 Comment
  CAS-BOT-BC348650  Micropus californicus var. subvestitus V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Val. Comment
  JEPS36211  Microseris douglasii subsp. douglasii W. L. Jepson 1923-4-22 9881 Contra Costa Mt. Diablo Comment
  UC691460  Microseris douglasii subsp. douglasii Mary L. Bowerman 1931-4-11 690 Contra Costa Pine Canyon Mount Diablo 121 Comment
  UC691463  Microseris douglasii subsp. douglasii Mary L. Bowerman 1931-4-11 698 Contra Costa toward mouth of Pine Canyon; Mount Diablo Comment
  UC691464  Microseris douglasii subsp. douglasii Mary L. Bowerman 1933-5-4 1991 Contra Costa Fossil Ridge crest Mount Diablo Comment
  CAS-BOT-BC348887  Microseris douglasii subsp. douglasii Mary L. Bowerman 1933-5-8 2008 Contra Costa Mount Diablo. Fossil Ridge, south face, not far from but out of sight of South Entrance 289 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-BC7486  Microseris leiosperma M. K. Curran 1886-1-1 s.n. Contra Costa Antioch Comment
  POM53413  Microseris lindleyi C. F. Baker 1903-4-28 2832 Contra Costa Marsh Creek, Mount Diablo Comment
  UCD118913  Microsteris gracilis Laurence S. Jones 1934-4-8 s.n. Contra Costa West slopes of Mt. Diablo. 609 Comment
  UC1055920  Mimetanthe pilosa N. Floy Bracelin 1944-9-9 2799 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  SEINET5561514  Mimulus aurantiacus H. S. Gentry 1931-1 55 Contra Costa Collected on Mt. Diablo near Buckle Point. Comment
  UC26691  Mimulus aurantiacus var. aurantiacus Ivar Tidestrom June 1895 Contra Costa Crockett Comment
  RSA550837  Mimulus aurantiacus var. aurantiacus David M. Thompson 1992-6-3 1107 Contra Costa SW base of Mt. Diablo, E of Danville. 2.6 mi NE of Blackhawk and diablo rads along Mt. Diablo Scenic Boulvard and South Gate Road 378 Comment
  OBI9519  Mimulus aurantiacus var. pubescens H. E. McMinn unk s.n. Contra Costa Cultivated at Danville, CA mr. Edmund's Place Comment
  UC691649  Mimulus douglasii Mary L. Bowerman 1935-4-26 2906 Contra Costa w Indian Ceremonial Spring; Mount Diablo 1005 Comment
  POM204480  Mimulus guttatus J. T. Howell 1933-5-14 11242 Contra Costa St. Mary's College Comment
  SEINET3159684  Mimulus latidens L. S. Rose 1940-4-11 40184 Contra Costa 3 miles W of Byron. 30 Comment
  UC103731  Mimulus latidens T. S. Brandegee May 1889 Contra Costa Antioch Comment
  JEPS116944  Mimulus latidens David Gowen 2008-4-16 862 Contra Costa Just south of parking area for Black Diamond Mines Regional Preserve on Frederickson Road. Comment
  CAS-BOT-BC388584  Minuartia douglasii Alice Eastwood 1915-5-30 4512 Contra Costa Mt. Diablo Comment
  CHSC22998  Minuartia douglasii Robert A. Schlising 1962-4-26 2187 Contra Costa Coast Ranges. Mount Diablo, at Juniper Campground. Comment
  UC8130  Minuartia douglasii W. H. Brewer 1862-5-5 1048 Contra Costa near Walnut Creek (sw of Camp 69) Comment
  RSA0026044  Mirabilis jalapa D. E. Breedlove 1969-10-18 16711 Contra Costa Along the roadbank on Reliez Valley Road at the junction with Gloria Terrace; Lafayette. Comment
  JEPS108214  Moehringia macrophylla David Gowen 2005-4-25 266 Contra Costa Mt. Diablo State Park. North Peak Trail, ca 1/4 mile south of Prospectors Gap. Comment
  UC311527  Monardella douglasii A. D. E. Elmer July, 1903 4544 Contra Costa Mount Diablo Comment
  CAS-BOT-BC221676  Monardella douglasii Mary L. Bowerman 1930-6-22 369 Contra Costa Mount Diablo. Mitchell Canyon trail: below Deer Flat Comment
  CAS-BOT-BC220515  Monardella villosa Mary L. Bowerman 1938-6-21 3689 Contra Costa Mount Diablo Comment
  JEPS100054  Monardella villosa subsp. villosa G. Smick 2003-6-6 GAS 215 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  SEINET892705  Monardella villosa subsp. villosa Alice Eastwood 1915-1 4743 Contra Costa San Leandro, Contra Costa County. Comment
  CAS-BOT-BC327804  Monolopia gracilens Mary L. Bowerman 1935-5-8 2973 Contra Costa Mt. Diablo, Muir Area, 1036 Comment
  CAS-BOT-BC349619  Monolopia major C. F. Baker 1903-4-27 2796 Contra Costa Byron Comment
  JEPS111667  Monolopia major C. Thayer, J. Dunne 1997-3-27 Contra Costa 91 Comment
  UC1484375  Monolopia major Dale E. Johnson 1975-4-12 188 Contra Costa near Byron (2.6 km (1.6 mi) w of Byron Hwy (Brentwood-Bethany road), on Camino Diablo, just w of road summit, near sand quarry) Comment
  UC629756  Monolopia major Ethel Crum 1936-4-6 1741 Contra Costa 2 mi w Byron 45 Comment
  CAS-BOT-BC349607  Monolopia major Ira L. Wiggins 1930-4-17 4563 Contra Costa 1 mi. east of Mountain House on road to Byron Comment
  UC1607685  Montia fontana Barbara Ertter, Lynne Hosley 1993-4-17 11511 Contra Costa Morgan Territory 10 air mi n of Livermore (in lee of Mount Diablo, s of Hummingbird trail,); Morgan Territory 609 Comment
  UC2028284  Myoporum laetum Barbara Ertter 1998-6-20 16240 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, along path just outside Wiget Lane entrance. Comment
  CHSC68026  Myosurus minimus James D. Jokerst 1989-3-28 3058 Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. Comment
  UC1738111  Myosurus minimus D. E. Stone 1957-3-15 14 -14 Contra Costa on road to Herdlyn, 3 mi S of Byron Comment
  CDA24286  Myosurus minimus Jim Jokerst 1989-3-28 3058 Contra Costa Northwest of junction of Byron Hot Springs Road and Armstrong Road. Northeast of Livermore. 0 Comment
  UCD96601  Myosurus minimus D. E. Stone 1957-4-4 70 B Contra Costa On State 4, 1 mile south of Byron. Comment
  UC1738117  Myosurus sessilis D. E. Stone 1955-8-26 8 -2 Contra Costa 3 mi S of Byron ( on road to Herdlyn) Comment
  POM312427  Myosurus sessilis H. L. Mason 1952-4-26 14269 Contra Costa Vernal Pool, 3.5 miles S of Byron Comment
  POM166792  Myrica californica Jos. Burtt Davy 1898-3-24 4176 Contra Costa [Unspecified] Comment
  JEPS112428  Myriophyllum aquaticum Christopher Thayer 1996-3-29 Contra Costa Pinole Creek, near intersection of Pinole Vally Rd and Castro Ranch Rd, on East Bay Municipal Utility District land Comment
  UC691272  Nassella lepida Mary L. Bowerman 1935-5-8 2976 Contra Costa spur below Pioneer Camp; Mount Diablo 731 Comment
  UC692291  Nassella lepida Mary L. Bowerman 1935-5-22 3060 Contra Costa saddle w Twin Peaks (Eagle POint Ridge); Mount Diablo 441 Comment
  CAS-BOT-BC259905  Nassella lepida Mary L. Bowerman 1932-4-27 1387 Contra Costa Mount Diablo. Oyster Ridge, canyon W of Riggs Canyon 335 Comment
  CAS-BOT-BC260127  Nassella pulchra A. A. Beetle 1941-3-28 1718 Contra Costa Orinda Comment
  CDA29507  Nassella pulchra D. G. Kelch, Troy MacGregor 2009-5-1 9 .278 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  SEINET190914  Nassella pulchra A. A. Beetle 1941-3-28 1718 Contra Costa Orinda. Comment
  UC60254  Nassella pulchra J. Burtt Davy Apr 1897 Contra Costa Point Isabel Comment
  UCD37583  Nassella pulchra Beecher Crampton 1955-4-11 2472 Contra Costa Contra Costa County, city of Richmond, East Shore and San Pablo Avenues. Comment
  SEINET11268203  Nassella pulchra Barbara Ertter, Dan Norris 1998-6-18 16211 Contra Costa South Gate Road on south flank of Mount Diablo, ca 1 mile in from park boundary.; 0 Comment
  JEPS116938  Navarretia cotulifolia David Gowen, Mike Park, Chris Thayer 2008-4-25 869 Contra Costa Cowell Ranch. Middle of Briones Valley, east of Deer Valley Road. Comment
  UC106900  Navarretia hamata subsp. parviloba Katharine Brandegee 1885-5 Contra Costa near Antioch; Judsonville Comment
  JEPS105707  Navarretia heterandra David Gowen 2004-5-14 60 Contra Costa Mt. Diablo. North of the road at Curry Point, ca. 1780 ft. elev. Comment
  JEPS116947  Navarretia heterandra David Gowen 2008-4-16 858 Contra Costa West end of Horse Valley. 146 Comment
  JEPS116847  Navarretia heterandra David Gowen 2007-4-29 688 Contra Costa Just southeast and outside of Black Diamond Mines Reg. Preserve. Comment
  POM65685  Navarretia nigelliformis Katherine Brandegee 1907-6-16 s.n. Contra Costa Near Antioch Comment
  UC2028276  Navarretia pubescens Barbara Ertter 1999-6-12 16700 Contra Costa Black Hawk Ridge Road between Knobcone Point Road and NE fork of Sycamore Creek, South side of Mount Diablo. Comment
  UC2062649  Navarretia pubescens Barbara Ertter 2002-6-22 17961 Contra Costa Bruce Lee Spring Trail east of Donner Canyon on north side of Mount Diablo. Comment
  CAS-BOT-BC7190  Nemophila decumbens M. K. Curran 1883-5-1 s.n. Contra Costa Mt. Diablo Comment
  JEPS3138  Nemophila heterophylla W. L. Jepson 1923-4-22 9868 Contra Costa Mt. Diablo Comment
  JEPS3141  Nemophila heterophylla Mary L. Bowerman 1930-6-10 308 Contra Costa Meridian Peak Summit , Meridian Peak summit (Mount Diablo) Comment
  JEPS75500  Nemophila heterophylla P. F. Yorks 1974-4-6 128 Contra Costa on Hampton Road in Hampton Road Natural Reserve ca 1.4 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Reserve, n of Briones Reservoir 180 Comment
  UC1021937  Nemophila heterophylla Rolf Y. Berg 1955-4-3 Contra Costa Laurel Dell Camp Mt. Diablo State Park; , Laurel Dell Camp 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
  UC67124  Nemophila heterophylla Harley P. Chandler 1901-4-5 949 Contra Costa Pine Canyon , Pine Canyon (Mt. Diablo) Comment
  POM65297  Nemophila heterophylla C. F. Baker 1903-4-28 2812 Contra Costa Mitchell s Canyon, Mt. Diablo. Comment
  JEPS127095  Nemophila menziesii var. menziesii Lowell Ahart, Josephine Guardino 2016-4-19 20797 Contra Costa 2.3 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
  UC596370  Nemophila pedunculata R. F. Hoover 1938-3-5 2816 Contra Costa mouth of Kirker Creek Canyon 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
  UC2027953  Nerium oleander Barbara Ertter with Joanne Kerbavaz and Mary Bowerman 2000-8-20 17509 Contra Costa North side Mount Olympia in Mount Diablo State Park, bulldozed site of former occupation at Zippe Spring. Comment
  UC1125161  Nicotiana glauca G. T. Nordstrom 1937-10-28 1402 Contra Costa 1.4 mi n Somersville; Mt. Diablo Quad. 91 Comment
  CAS-BOT-BC235130  Oemleria cerasiformis James R. Shevock 2012-8-12 40657 Contra Costa San Francisco Bay Region. Tilden Regional Park, East Bay Regional Park District. Along Grizzly Peak Trail about midway between the upper and lower trailheads 448 Comment
  CDA38496  Oenanthe sarmentosa D. G. Kelch 2003-8-13 3 .1 Contra Costa Carquinez Strait Region; Martinez Marsh. 0 Comment
  UC1606350  Oenanthe sarmentosa Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10680 Contra Costa n. Pittsburg (near confluence of Sacramento & San Joaquin Rivers, opposite Pittsburg Marina, Browns Island, marsh at edge of lagoon in center of w. end of island); Browns Island Comment
  UC2028407  Oenanthe sarmentosa Barbara Ertter with Richard K. Brummitt 1998-5-16 16098 Contra Costa Antioch Marina, edge of brackish marsh Comment
  CDA38155  Oenothera deltoides subsp. cognata F. J. Brucato 1962-5-2 s.n. Contra Costa Knightsen; Sunset and Eden Plains Rd. 0 Comment
  CAS-BOT-BC171595  Oenothera deltoides subsp. howellii Alice Eastwood 1921-4-18 10283 Contra Costa Antioch Comment
  JEPS43995  Oenothera deltoides subsp. howellii Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  RSA119427  Oenothera deltoides subsp. howellii William M. Klein 1958-6-9 432 Contra Costa Sandhills N of Antoch, along the San Joaquin River Channel. 2 Comment
  UC1073376  Oenothera deltoides subsp. howellii George B. Rossbach 1955-5-22 369 Contra Costa dunes near bank of San Joaquin River (e edge of Antioch); Antioch Comment
  NY233529  Oenothera deltoides var. howellii A. Eastwood 1936-4-19 2147 Contra Costa Comment
  RSA0004531  Oenothera deltoides var. howellii Alice Eastwood, J. T. Howell 1936-4-19 2147 Contra Costa Sand dunes at Antioch Comment
  SEINET7719109  Oenothera micrantha Chesnut, Drew 1889-4-18 Contra Costa Antioch Comment
  SDSU8854  Oenothera ovata J. Godsil 1952-4-8 158 Contra Costa El Sobrante, hills toward Pinole. Comment
  UC1952821  Olea europaea Barbara Ertter with David Gowen 2010-11-17 20701 Contra Costa north face of Lime Ridge Open Space (City of Walnut Creek). Comment
  UC2028003  Olea europaea Barbara Ertter with Amy Rusev 1998-1-17 15902 Contra Costa Edge of Lime Ridge Open Space at NW foot of Mount Diablo, around former quarry [subsequently developed] on south side of Ygnacio Valley Road. Comment
  CAS-BOT-BC499853  Orobanche fasciculata Paul F. Covel 1936-5-17 124 Contra Costa Mt. Diablo (near summit) Comment
  UC2027723  Orobanche uniflora Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15511 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  UC691747  Orobanche uniflora subsp. occidentalis Mary L. Bowerman 1935-5-18 3029 Contra Costa Mount Diablo. North of the large summit parking area. Exposure northeast. Comment
  CAS-BOT-BC502956  Orobanche vallicola Paul F. Covel 1938-7-1 1470 Contra Costa Summit Mt. Diablo Comment
  SEINET3821123 Image available Orthocarpus erianthus Lewis S. Rose 1932-3-26 32115 Contra Costa Open hillsides, Nortonville. Comment
  RSA516499  Orthocarpus erianthus Robert F. Hoover 1938-2-27 2783 Contra Costa Danville. Comment
  CDA4721  Oxalis corniculata D. G. Kelch, A. G. Murdock 2005-5-23 5 .375 Contra Costa Carquinez Strait Region; Crockett - Crolona Heights. 6th Street at Lillian Street, Crockett. Comment
  SEINET9287601  Packera multilobata Unknown 1999-12-20 1219291 Contra Costa Along Wildcat Canyon Rd., 1.9 mi NW of intersection of Wildcat Canyon Rd and Dam Rd. vicinity of Orinda. Comment
  UC2028447  Panicum capillare Barbara Ertter with Chris Thayer 1996-10-25 15379 Contra Costa West side of Mount Diablo, North Gate Road 3 road miles below junction, near Mineral Spring Comment
  UCD150909  Panicum capillare James A. Neilson Jr. 1972-10-22 3506 Contra Costa Walnut Creek drainage at State Highway 4. Elevation estimated using Google Earth by label maker. 1 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
  JEPS101188  Parapholis incurva Dean W. Taylor 1990-4-10 10618 Contra Costa Byron Hot Springs Road, 1 mile S of Holey Road 24 Comment
  JEPS127671  Parapholis incurva Barbara Ertter with David Gowen and Michael Park 2017-5-2 22801 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  UC1111579  Parietaria hespera var. californica Herbert L. Mason 1929-5-5 5260 Contra Costa Nortonville Comment
  UC692353  Parvisedum pentandrum J. T. Howell 16970 Contra Costa ne of Deer Flat (Mount Diablo); Mount Diablo 609 Comment
  UC2028377  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
  UC1818917  Paspalum distichum Barbara Ertter 1995-9-30 14524 Contra Costa North bank of Cerrito Creek at end of Yosemite Avenue in El Cerrito, foot of Albany Hill; stonework bank at edge of overgrown sluggish creek. Comment
  UC2028558  Paspalum distichum Barbara Ertter with Chris Thayer 1996-10-25 15366 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothill Regional Park. Comment
  UCD150906  Paspalum distichum James A. Neilson Jr. 1972-11-2 3614 Contra Costa Walnut Creek drainage at State Highway 4. Elevation estimated using Google Earth by label maker. 1 Comment
  CAS-BOT-BC259724  Paspalum distichum Walter Knight; et al. 1978-9-19 3266 Contra Costa Browns Island, Alder Point Comment
  SEINET12728273  Pectocarya linearis T. S. Brandegee 1890-1 s.n. Contra Costa Antioch California. Comment
  UC573064  Pectocarya penicillata H. L. Mason 5133 Contra Costa 2 mi above Clayton (Marsh Creek Rd) Comment
  HSC101963  Pedicularis densiflora Nikolaus Gillen, Michelle Bihler 2014-3-20 15 Contra Costa Mount Diablo State Park. Eagle Peak Trail. 649 Comment
  UC1125723  Pedicularis densiflora R. C. Wilson 1935-2-27 115 Contra Costa 1/2 mi s of Somersville 365 Comment
  UC692690  Pediomelum californicum Mary L. Bowerman 1935-6-1 3114 Contra Costa summit Mount Diablo Mount Diablo, summit (between the one-way roads) Comment
  POM20615  Pediomelum californicum F. W. Peirson 1923-7-1 3618 Contra Costa Contra Costa County: summit of mt Diablo Comment
  UC1818872  Pelargonium inquinans Barbara Ertter, Brad Olson 1994-5-7 12757 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge, edge of San Francisco Bay. Openings, especially with seepage, near open brush. Comment
  CDA42757  Pellaea andromedifolia A. G. Murdock 2004-4-3 247 Contra Costa Franklin Canyon - McHarry Ranch Road, near fire road entrance. Comment
  JEPS106989  Pellaea andromedifolia J. Greenhouse with Kevin Hintsa 2004-4-5 5087 Contra Costa Mt. Diablo, Fire Interpretive Trail, Devil's Pulpit 1088 Comment
  UC692118  Pellaea andromedifolia Mary L. Bowerman 1930-8-24 428 Contra Costa lower trail Mitchell Canyon; Mt Diablo 259 Comment
  RSA686787  Pellaea andromedifolia H. de Forest 1930-4-6 s.n. Contra Costa SE of Mortonville. 274 Comment
  UC692119  Pellaea mucronata var. mucronata Mary L. Bowerman 1933-5-2 1956 Contra Costa below Pioneer Camp (just above upper edge of chaparral); Mt Diablo 762 Comment
  JEPS4477  Penstemon centranthifolius G. Thomas Robbins 1940-5-19 324 Contra Costa e Antioch; bordering San Joaquin River e of Antioch Comment
  SBBG26831  Penstemon centranthifolius L. S. Rose 1936-4-24 36158 Contra Costa 3 mi E of Antioch 15 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
  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
  UC2028106  Penstemon centranthifolius Barbara Ertter with Christopher Baysdorfer 1998-5-10 16118 Contra Costa Lime Ridge Open Space northwest of Mount Diablo. Comment
  UC1063391  Penstemon heterophyllus var. purdyi C. M. Belshaw 1936-5-15 2132 Contra Costa Briones Valley 1/2 mi w Marsh Creek (Antioch intersection); Mt. Diablo Quad., w of Marsh Creek Comment
  CAS-BOT-BC328000  Pentachaeta alsinoides Alice Eastwood; John Thomas Howell 1936-4-19 2138 Contra Costa Nortonville Comment
  UC691800  Pentachaeta alsinoides Mary L. Bowerman 1933-3-18 1753 Contra Costa Meridian Peak Mount Diablo (a little e of the meridian) Comment
  UC691803  Pentachaeta alsinoides Mary L. Bowerman 1935-5-1 2938 Contra Costa west road 2 mi from entrance (across the creek); Mount Diablo 182 Comment
  JEPS107104  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
  UC672242  Pentachaeta alsinoides Herbert L. Mason 1932-4-15 6925 Contra Costa summit road from Moraga to Lafayette Comment
  UC1050369  Pentas lanceolata var. coccinea N. Floy Bracelin 1942-7-4 2179 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1354307  Perideridia californica T. I. Chuang, L. R. Heckard and R. Bacigalupi 1968-4-27 6437 Contra Costa Deer Flat Mt. Diablo Comment
  UC692564  Perideridia californica Mary L. Bowerman 1935-6-15 3134 Contra Costa Mitchell Canyon Mount Diablo (in stones of streambed at point where stream disappears) 640 Comment
  UC1818960  Perideridia kelloggii Barbara Ertter, Kristin Ertter 1995-7-11 14481 Contra Costa Dried meadow on heavy clay soil downstream from Pine Pond (in Mt. Diablo State Park) 182 Comment
  UC692378  Perideridia kelloggii Mary L. Bowerman 1933-4-22 1903 Contra Costa w 1970 point; Mount Diablo, Inner Black Hills Comment
  CHSC39484  Phacelia Tyler Williams 1984-4-18 20 Contra Costa Mt. Diablo. Upper site at Rocky Point Picnic Area on Summit Rd. in Mt. Diablo State Park. 670 Comment
  UC107330  Phacelia breweri Katharine Curran May 1883 Contra Costa Mt. Diablo Comment
  UC880993  Phacelia breweri Lewis S. Rose 1941-5-15 41239 Contra Costa summit Mt. Diablo 1188 Comment
  UC880994  Phacelia breweri H. M. Evans 1921-4-30 Contra Costa Mt. Diablo Comment
  UCD102377  Phacelia breweri Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 960 Comment
  JEPS2225  Phacelia californica W. L. Jepson 1896-5-31 21044 Contra Costa Gum Grove Reservoir to Wild Cat Creek; Berkeley Hills Comment
  UC2032819 Image available Phacelia californica Doran, Andrew Scott 2012-3-20 689 Contra Costa North end of Brooks Island along ridge overlooking artificial spit, southwest of caretakers residence. Comment
  UC762065  Phacelia californica R. F. Hoover 1938-2-21 2753 Contra Costa Point Richmond Comment
  CHSC23115  Phacelia ciliata Robert A. Schlising; Botany 299 class 1962-3-24 2105 Contra Costa In disturbed orchard, along Marsh Creek Road, about 4 miles 2 of Byron. Comment
  POM204460  Phacelia ciliata J. T. Howell 1933-3-29 10915 Contra Costa Near Pittsburg. Comment
  POM89836  Phacelia ciliata Chesnut, E. R. Drew 1889-4-17 s.n. Contra Costa Summerville. Comment
  UC767564  Phacelia ciliata var. ciliata R. F. Hoover 1938-3-25 2897 Contra Costa Lone Tree Valley Comment
  JEPS2024  Phacelia distans W. L. Jepson 1923-4-22 9879 Contra Costa Mt. Diablo Comment
  UC107401  Phacelia distans T. S. Brandegee May 1889 Contra Costa Antioch Comment
  JEPS75508  Phacelia imbricata subsp. imbricata P. F. Yorks 1975-5-31 427 Contra Costa on Hampton Rd ca 1.6 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Preserve 180 Comment
  CAS-BOT-BC154325  Phacelia phacelioides Mary L. Bowerman 1935-5-8 2974 Contra Costa Mount Diablo. Muir Area 1036 Comment
  CAS-BOT-BC154329  Phacelia phacelioides H. M. Hall; F. M. Essig 1916-5-31 10135 Contra Costa Mount Diablo 1140 Comment
  CAS-BOT-BC154331  Phacelia phacelioides Lewis S. Rose 1932-6-24 32341 Contra Costa Mt. Diablo 1173 Comment
  CAS-BOT-BC154355  Phacelia suaveolens Mary L. Bowerman 1933-5-11 2078 Contra Costa Inner Black Hills: West ridge Comment
  CDA40455  Phacelia tanacetifolia D. G. Kelch 2004-4-3 4 .056 Contra Costa Carquinez Strait Region; Crockett-Tormey Headlands, west of the I-80 and Cummings Skyway junction. Comment
  SEINET3158353  Phacelia tanacetifolia L. S. Rose 1933-4-17 33091 Contra Costa Antioch Comment
  UC1818956  Phalaris aquatica Barbara Ertter, Kristin Ertter 1995-7-11 14466 Contra Costa Pine Creek on west side of Mt. Diablo southwest of Walnut Creek. Trailhead at Castle Rock; dried grasslands. 121 Comment
  UC2028437  Phalaris aquatica Barbara Ertter with Chris Thayer 1996-10-25 15354 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park Comment
  JEPS95764  Phalaris brachystachys Dianne Lake 1999-6-11 Contra Costa N-facing hillside E of intersecton of Tassajara and Lawrence Rds., S of Tassajara Rd. San Ramon 225 Comment
  POM301848  Phalaris lemmonii Mary L. Bowerman 1934-4-21 2533 Contra Costa Muir Area Comment
  CAS-BOT-BC265959  Phalaris minor R. E. Frenkel 1964-4-29 462 Contra Costa 0.2 mile west of Bixler Road on Balfour Road 6 Comment
  CAS-BOT-BC250684  Phalaris paradoxa R. E. Frenkel 1964-4-18 428 Contra Costa 2.1 miles E. of Danville on Tassajara Road 129 Comment
  UC84850  Phlox gracilis Katharine Brandegee May 1886 Contra Costa Antioch Comment
  HSC83448  Pholistoma membranaceum J. M. Tucker 1981-4-25 4454 Contra Costa Antonio Souza Ranch SW of Byron, summit of High Hill 309 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
  POM181424  Phragmites australis I. L. Wiggins 1930-4-18 4588 Contra Costa Jersey Island Comment
  JEPS87944  Phyla nodiflora var. nodiflora Barbara Ertter, Brad Olson 1991-9-28 10828 Contra Costa at s end of San Pablo Reservoir between Orinda and El Sobrante; San Pablo Reservoir 91 Comment
  UCD33148  Phyllostachys Beecher Crampton 1966-10-18 7814 Contra Costa Contra Costa County, Kensington, Berkeley Hills Blake Garden, UC Berkeley Dept. of landscape architecture. Comment
  UC1789168  Phyllostachys aurea Barbara Ertter 2001-5-26 17652 Contra Costa Stamm Unit of Antioch Dunes National Wildlife Refuge east of Antioch, single well-established clump at base of river bank. Comment
  JEPS65569  Pickeringia montana var. montana W. L. Jepson 1943-6-8 20844 Contra Costa Moraga Ridge Comment
  POM16711  Pickeringia montana var. montana A. D. E. Elmer 1903-05 4315 Contra Costa Mount Diablo Comment
  UC311108  Pickeringia montana var. montana A. D. E. Elmer May, 1903 4315 Contra Costa Mount Diablo Comment
  UC1055936  Pilularia americana Herbert L. Mason 1952-4-14 14261 Contra Costa 3.5 mi s Byron Comment
  JEPS46917  Pinus attenuata W. L. Jepson 1908-2-23 2984 Contra Costa Moraga Ridge Comment
  JEPS47876  Pinus coulteri W. L. Jepson 1909-6-25 3115 Contra Costa Mitchell Canyon Mt. Diablo, Mitchell Canyon Comment
  UCR143277  Pinus coulteri C. B. Wolf, A. L. Chickering, H. L. Mason 1943-2-28 11442 Contra Costa Central Coast Range, 1 mile SW of old coal mining settlement of Nortonville at northern base of Mt. Diablo hills 427 Comment
  UC2029175  Pinus halepensis Barbara Ertter 2000-7-29 17444 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
  CDA23630  Pinus radiata D. G. Kelch 2007-9-8 7 .578 Contra Costa Carquinez Strait; Pinole Valley Park. Comment
  CDA28753  Pinus sabiniana S. M. Blank 2007-4-7 Z 16 /07 Contra Costa Sacramento Valley; Mount Diablo State Park, Summit Road. Comment
  UC1134128  Pinus sabiniana R. C. Wilson 1935-2-27 116 A Contra Costa 2 mi s Clayton; Mt. Diablo Quad. 259 Comment
  UC1134136  Pinus sabiniana R. W. Lundh 1932-9-7 161 Contra Costa 1 mi n Eagle point; Mt. Diablo Quad. 228 Comment
  UC521715  Pinus sabiniana Joseph Andorfer Ewan 1933-10-15 8039 Contra Costa on grassy open sw slope of Mt. Diablo Mt. Diablo 1066 Comment
  UC1614071  Plagiobothrys Charles M. Belshaw 1935-6-24 780 Contra Costa 1/2 mi e of Grizzly Peak (n face of Bald Peak); Bald Peak Comment
  JEPS60917  Plagiobothrys acanthocarpus Mary L. Bowerman 1933-3-25 1761 Contra Costa Diablo Stock Farm (Stone Valley) Canyon Mount Diablo (w fork) Comment
  JEPS116911  Plagiobothrys acanthocarpus David Gowen 2009-3-31 977 Contra Costa Black Diamond Regional Preserve. Large open flat east of Lower Oil Canyon Trail. Comment
  JEPS111830  Plagiobothrys bracteatus D. G. Kelch 2005-4-15 05 .136 Contra Costa Rodeo Creek 100 ms west of previous site along dirt in road in puddles 100 Comment
  UC882304  Plagiobothrys bracteatus Joseph Andorfer Ewan 1936-5-24 9698 Contra Costa w slope Bald Peak; San Pablo Ridge Comment
  RSA0027645  Plagiobothrys bracteatus Barbara Ertter 1998-5-3 16058 Contra Costa Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. 274 Comment
  UC79334  Plagiobothrys canescens Katharine Brandegee May 1888 Contra Costa near Antioch Comment
  SEINET8731527 Image available Plagiobothrys canescens Lewis S. Rose 1933-1 33046 Contra Costa Pittsburg. Comment
  UC2070495  Plagiobothrys fulvus Barbara Ertter with Kevin Hintsa et al. 2003-4-20 18150 Contra Costa Diablo Foothills Regional Park on west base of Mount Diablo, south end of trail west edge of Castle Rock Recreation Area. Comment
  JEPS116860  Plagiobothrys fulvus var. campestris David Gowen 2007-4-13 670 Contra Costa Diablo Foothills, west of the grassy field at Castle Rock Recreation Area. Comment
  CHSC67895  Plagiobothrys humistratus James D. Jokerst 1989-3-29 3066 Contra Costa 0.25 mi S of Byron Hot Springs NE of Livermore. Comment
  CDA1340  Plagiobothrys leptocladus D. G. Kelch 1992-3-21 1824 -A Contra Costa 2.5 mi. SE of Byron; along RR tracks, N of junction of Holey Rd. and Byron Hwy. 0 Comment
  OBI72067  Plagiobothrys leptocladus Barbara Ertter, Jim Jokerst and Dave Magney 1989-4-5 8129 Contra Costa SE county. W and adj to Clifton Ct Forebay, ca 15 air mi SW of Stockton T1S R3E sec 24 SESW Comment
  UC691404  Plagiobothrys nothofulvus Mary L. Bowerman 1931-4-4 630 Contra Costa 2 mi from Mount Diablo west road (= North Rd.) entrance; Mount Diablo 259 Comment
  UCSB39472  Plagiobothrys nothofulvus Fritzke, Sue 1980-3-29 Contra Costa 0.5 miles from the N end of Ball Rd.; in Shell Ridge Open Space Area; SE of the rock quarry 121 Comment
  UC78186  Plagiobothrys stipitatus C. F. Baker 1903-4-27 2799 Contra Costa Byron Comment
  JEPS61072  Plagiobothrys stipitatus var. micranthus E. L. Greene 1889-3-24 Contra Costa Byron Comment
  OBI20600  Plagiobothrys stipitatus var. micranthus Robert F. Hoover 1967-4-28 10513 Contra Costa Byron Hot Springs Comment
  OBI20604  Plagiobothrys stipitatus var. micranthus Robert F. Hoover 1967-4-28 10510 Contra Costa Byron Hot Springs Comment
  RSA0069382  Plagiobothrys stipitatus var. micranthus Katie Gallagher, Nick Jensen 2014-4-26 207 Contra Costa Las Trampas Regional Wilderness. 487 Comment
  UC1618197  Plagiobothrys stipitatus var. stipitatus Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8120 Contra Costa ca. 15 air mi. s.w. Stockton (w. & adjacent to Clifton Court Forebay); s.e. Contra Costa Co. Comment
  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
  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
  JEPS111833  Plagiobothrys trachycarpus A. G. Murdock 2004-3-19 230 /231 Contra Costa Hercules - Carbon 50 Comment
  RSA128482  Plagiobothrys trachycarpus Robert F. Hoover 1941-4-12 4840 Contra Costa 1 mile N of Lone Tree Valley. Comment
  UC1736692  Plantago bigelovii Dean W. Taylor 1971-4-1 980 Contra Costa junction of Byron Road and Holley Road; vernal pool 7 Comment
  UC124287  Plantago elongata M. K. Curran May 1883 Contra Costa Antioch Comment
  UC1314969  Plantago elongata R. F. Hoover 1967-4-28 10516 Contra Costa Byron Hot Springs Comment
  POM61282  Plantago elongata subsp. pentasperma C. F. Baker 1903-4-27 2866 Contra Costa Byron. Comment
  UC2032844 Image available Plantago erecta Doran, Andrew Scott 2012-3-20 715 Contra Costa Trail down from highest point of Brooks Island. South east part of Island. Comment
  POM61278  Plantago erecta C. F. Baker 1903-4-28 2828 Contra Costa Marsh Creek, Mt. Diablo. Comment
  UC1818866  Plantago lanceolata Barbara Ertter, Kristin Ertter 1995-7-11 14475 Contra Costa Sulfur Spring on Pine Cr, Diblo Foothill Regional Park, marshy wet ground. 121 Comment
  JEPS111994  Plantago major D. G. Kelch 2004-4-24 04 .103 Contra Costa Ca ada del Cierbo Upper Ca ada de Cierbo on fire road to cow barn along Cummings Skyway 70 Comment
  JEPS78614  Plantago subnuda Walter Knight, L. R. Heckard, and Bert Johnson 1978-9-28 3298 Contra Costa Botany Cove, Browns Island Comment
  CAS-BOT-BC91605  Platystemon californicus John Thomas Howell 1933-5-14 11277 Contra Costa Hills east of Saint Mary's College. Comment
  UC101593  Platystemon californicus Katharine Brandegee 1907-5-5 e Contra Costa between Antioch and Marsh Creek; between Antioch and Marsh Creek Comment
  UC101594  Platystemon californicus Katharine Brandegee 1907-5-5 f Contra Costa between Antioch and Marsh Creek; between Antioch and Marsh Creek Comment
  UC1328152  Platystemon californicus Olive Dyer April 1938 424 Contra Costa San Pablo Ridge Wildcat Canyon (just over on Orinda side); , Wildcat Canyon Comment
  UC566962  Platystemon californicus R. C. Wilson 1935-3-26 143 Contra Costa 2 mi n Walnut Creek; Concord Quad. Comment
  CAS-BOT-BC91606  Platystemon californicus Alice Eastwood 1906-5-1 s.n. Contra Costa Berkeley. Comment
  UC101590  Platystemon californicus Katharine Brandegee 1907-5-5 i Contra Costa between Antioch and Marsh Creek (Judsonville) (300 yds along a sandy road back of oldest Coal Mine); between Antioch and Marsh Creek (Judsonville) Comment
  POM203638  Platystemon californicus var. californicus J. T. Howell 1933-5-14 11277 Contra Costa Hills east of St. Mary's college Comment
  PASA293  Plectritis ciliosa Annetta Carter 1929-3-31 Contra Costa Near Clayton Comment
  UC1607967  Plectritis ciliosa Donald G. Nelson 1937-3-30 463 Contra Costa along Marsh Creek Rd. between Clayton and Byron Comment
  JEPS6156  Plectritis congesta L. T. Dempster 1954-6-4 Contra Costa N of Orinda Wildcat Canyon Road Comment
  UC39496  Pleuropogon californicus W. H. Brewer 1862-5-1 1043 Contra Costa Walnut Creek Comment
  UCD90186  Pleuropogon californicus var. californicus R. Tofsrud 1946-4-1 s.n. Contra Costa Concord airfield. Comment
  CDA8486  Pluchea odorata D. G. Kelch, A. G. Murdock 2004-9-2 4 .334 Contra Costa Carquinez Strait Region; Pacheco Marsh. Marsh east of Martinez and I-680 and east of lone tree Marsh. Comment
  CAS-BOT-BC356116  Pluchea odorata Virginia I. Dains; Walter Knight 1986-8-8 5497 Contra Costa Antioch Comment
  JEPS111727  Pluchea odorata var. odorata D. G. Kelch 2004-7-9 04 .311 Contra Costa Pacheco Marsh Pacheco hill Marsh west of Pacheco Slough 5 Comment
  UC485228  Pluchea odorata var. odorata H. M. Hall 1916-8-16 10272 Contra Costa Martinez San Francisco Bay Region 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
  UCSB12520  Poa annua Grah, Nancy 1962-4-14 Contra Costa .2 miles north of Miner Rd. on Sleepy Hollow Lane, Orinda 182 Comment
  JEPS87903  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
  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
  JEPS99533  Poa howellii Mary L. Bowerman 1979-5-12 Contra Costa Mount Diablo. Prospector's Gap. Trail to North Peak from Devil's elbow. Between Devil's Pulpit and Aug. 1977 burn. 975 Comment
  JEPS71285  Poa secunda W. L. Jepson 1925-4-26 10687 Contra Costa Black Hills Mt Diablo Comment
  POM300629  Poa secunda Mary L. Bowerman 1933-4-15 1869 Contra Costa Canyon south of Arroyo del Cerro; Rocky knoll 250 feet below spring. Comment
  CAS-BOT-BC236394  Poa secunda subsp. secunda Alice Eastwood 1921-4-18 10289 Contra Costa Antioch Comment
  UC38696  Poa secunda subsp. secunda J. Burtt Davy 1895-4-8 898 Contra Costa Antioch Comment
  UC692415  Poa secunda subsp. secunda Mary L. Bowerman 1933-5-3 1985 Contra Costa Grassy flat beneath Quereus Douglasii, little below and across the stream from the spring. Alder Canyon 731 Comment
  SEINET7973850  Poa secunda var. secunda J. B. Davy 1899-4-19 7856 Contra Costa Las Trampas Creek Comment
  SEINET5548629  Poaceae J. Hamai 1985-1 s.n. Contra Costa Russell Reserve Comment
  POM193972  Pogogyne serpylloides J. T. Howell 1930-4-22 4747 Contra Costa Bald Peak Comment
  UC762113  Pogogyne zizyphoroides R. F. Hoover 1941-4-12 4842 Contra Costa 2 miles S of Antioch Comment
  CDA33778  Polycarpon tetraphyllum D. G. Kelch 2011-5-11 11 .246 Contra Costa Carquinez Strait Region.; Crockett. At CREEC nursery Dowlrelio Dr (below bridge). Comment
  UC1192326  Polygonum amphibium Malcolm A. Nobs and S. Galen Smith 1949-7-7 938 Contra Costa Webb Island Sacramento Delta peat lands Comment
  UC691131  Polygonum amphibium Mary L. Bowerman 1935-7-22 3185 Contra Costa Hidden Pond Mount Diablo 518 Comment
  CDA1104  Polygonum arenastrum D. G. Kelch, A. G. Murdock 2004-7-9 04 .290-A Contra Costa Carquinez Strait; Crockett; Edwards Creek, immediately below high school. Comment
  RSA74882  Polygonum arenastrum Elroy Robinson 1935-9-14 s.n. Contra Costa Martinez Comment
  JEPS112027  Polygonum aviculare subsp. depressum Dean G. Kelch and Andrew G. Murdock 2004-7-9 DGK 04 .290Z Contra Costa Edwards Creek Crockett CA. Comment
  UC1446049  Polypodium calirhiza Alan Smith with Ed Lee 1979-4-25 731 Contra Costa n side Mt. Diablo Peak (trail beyond Devil's Elbow toward saddle between Mt. Diablo and North Peak) 1066 Comment
  UC692121  Polypodium calirhiza Mary L. Bowerman 1935-3-15 2736 Contra Costa e fork Arroyo del Cerro; Mt. Diablo 262 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
  CDA9488  Polypogon monspeliensis D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .213 Contra Costa Byron Airport. Comment
  CHSC60218  Polypogon monspeliensis J. Lund 1980-4-2 Contra Costa 3.0 miles west of the junction of East 10th and Clayton Valley Road in Pottsburg. 0 Comment
  UC692382  Polypogon monspeliensis Mary L. Bowerman 1932-8-27 1521 Contra Costa spring s of Turtle Rock Mount Diablo; , spring s of Turtle Rock Comment
  UCD91221  Polypogon monspeliensis A. A. Beetle 1941-6-24 1750 Contra Costa Point Richmond on San Francisco Bay. Comment
  UCD91254  Polypogon monspeliensis Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  CAS-BOT-BC237470  Polypogon viridis Mary L. Bowerman 1936-8-17 3527 Contra Costa Mount Diablo. Sulphur Spring in Pine Canyon 137 Comment
  POM300722  Polypogon viridis Mary L. Bowerman 1933-11-4 2462 Contra Costa Mount Diablo; Alder Creek Springs. 488 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
  JEPS112250  Populus fremontii D. G. Kelch 2004-4-26 04 .129-B Contra Costa Martinez - West: Ozol Rock and Scenic Drive Comment
  SBBG122780  Potamogeton diversifolius B. Ertter, B. Olson 1991-9-28 10839 Contra Costa S end of San Pablo Reservoir between Orinda and El Sobrante 91 Comment
  JEPS111056  Potamogeton foliosus var. foliosus Barbara Ertter 2005-8-17 18617 Contra Costa N base of Mount Diablo S of Clayton, small permanent pond NE of Mitchell Canyon parking lot Comment
  UC1618288  Potentilla anserina subsp. pacifica Barbara Ertter, Diane Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10706 Contra Costa opposite Pittsburg Marina (near w end of Browns Island n of Pittsburg, near confluence of Sacramento and San Joaquin Rivers); Browns Island Comment
  CAS-BOT-BC158576  Prunus Walter Knight 1965-3-1 s.n. Contra Costa Antioch Dunes Comment
  CDA32038  Prunus angustifolia D. G. Kelch 2006-3-18 6 .107 Contra Costa 2 km N-NW of Orinda Village. NW of corner of San Pablo Dam Rd & Bear Valley Rd. 0 Comment
  JEPS112076  Prunus dulcis D. G. Kelch 2003-3-21 03 .43 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  JEPS112071  Prunus virginiana subsp. demissa A. G. Murdock 2004-5-28 268 Contra Costa Pinole Peak 205 Comment
  UC691146  Prunus virginiana var. demissa Mary L. Bowerman 1933-5-21 2148 a Contra Costa Grape Spring s from Curry Canyon (Mount Diablo); , Grape Spring Comment
  UC2028004  Pseudognaphalium canescens Barbara Ertter with Amy Rusev 1998-1-17 15901 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
  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
  CAS-BOT-BC357222  Pseudognaphalium microcephalum Walter Knight; I. Knight 1977-7-25 s.n. Contra Costa Black Diamond Mines Regional Preserve. Nortonville town site 167 Comment
  JEPS95763  Pseudognaphalium stramineum Dianne Lake 1999-7-9 Contra Costa along S side of road coming up from middle of golf course Franklin Canyon; Hercules 121 Comment
  UC691826  Pseudognaphalium stramineum Mary L. Bowerman 1938-9-17 3717 Contra Costa Johnny Walker Spring Mount Diablo, Johnny Walker Spring 731 Comment
  CAS-BOT-BC361693  Psilocarphus brevissimus var. brevissimus Herbert L. Mason 1952-4-14 14266 Contra Costa Vernal Pool 3.5 miles south of Byron Comment
  UC177448  Psilocarphus oregonus Alice Eastwood 1893-5-5 Contra Costa Brentwood Comment
  CAS-BOT-BC361879  Psilocarphus tenellus John Thomas Howell 1933-5-14 11230 Contra Costa St. Mary's College Comment
  UC694145  Psilocarphus tenellus H. L. Mason 1932-4-24 6964 Contra Costa Marsh Creek Road Comment
  UC35753  Psilocarphus tenellus W. H. Brewer 1862-5-26 1165 Contra Costa canyon near Mount Diablo Comment
  CHSC67885  Psilocarphus tenellus var. tenellus James D. Jokerst 1989-3-28 3064 Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. Comment
  RSA600819  Psoralea physodes Joseph A. Ewan 1934-4-8 8752 Contra Costa Mt. Diablo: Marsh Creek. 243 Comment
  POM138612  Ptelea baldwinii subsp. crenulata C. F. Baker 1903-4-28 2943 Contra Costa Mitchell's Canyon, Mt. Diablo. Comment
  POM138613  Ptelea baldwinii subsp. crenulata C. F. Baker 1903-4-28 2943 Contra Costa Mitchell's Canyon, Mt. Diablo. Comment
  RSA15420  Ptelea baldwinii subsp. crenulata L. S. Rose 1936-4-24 36147 Contra Costa Marsh Creek. 6 miles E of Clayton. 61 Comment
  RSA77085  Ptelea baldwinii subsp. crenulata Alice Eastwood, John T. Howell 1936-4-19 2134 Contra Costa Nortonville. Comment
Read comments
Aug 27 2011
  CAS-BOT-BC148627  Ptelea crenulata Alice Eastwood 1915-5-30 4440 Contra Costa Mount Diablo Comment
  JEPS21816  Ptelea crenulata Marjory A. Hayden 1958-5-16 Contra Costa 2 mi s Martinez (Franklin Canyon Road) Comment
  SDSU9372  Ptelea crenulata D. F. Howe 1968-5-20 4516 Contra Costa Nortonville. Comment
  SJSU758  Ptelea crenulata C. D. Duncan 1942-4-26 Contra Costa lower E slope, Mt Diablo Comment
  UC1602321  Ptelea crenulata R. W. Lundh 1932-9-3 156 Contra Costa 1 mi n Mt. Diablo, North Peak; Mt. Diablo Quad. 609 Comment
  UC194966  Ptelea crenulata H. M. Hall 1916-8-17 10277 Contra Costa 6 mi s Antioch; Upper Horse Valley 213 Comment
  UC30132  Ptelea crenulata W. C. Blasdale 1893-5-13 Contra Costa Summerville Comment
  CAS-BOT-BC148633  Ptelea crenulata H. M. Hall 1910-8-17 10277 Contra Costa Upper Horse Valley (6 mi. s. of Antioch) 213 Comment
  SBBG3977  Ptelea crenulata J. M. Tucker 1941-8-28 383 Contra Costa Curry Cyn, 3 mi S of jct of Curry Cyn Rd with Clayton-Byron Rd Comment
  UC2070583  Pteridium aquilinum var. pubescens Barbara Ertter with Joanne Kerbavaz, David Gowen, Mike Park and Victoria Seidman 2004-4-22 18365 Contra Costa Alder Creek crossing on Green Ranch Road, south side of Mount Diablo summit. Comment
  UC6916  Pterostegia drymarioides W. L. Jepson 1891-5-23 Contra Costa Mt. Diablo Comment
  UC2027947  Pyrus communis Barbara Ertter 1997-9-7 15792 Contra Costa North side Mount Diablo, cabin site on Donner Creek, in persisting orchard. Comment
  CAS-BOT-BC36505  Quercus Paul F. Covel 1939-4-30 s.n. Contra Costa Somersville Comment
  UC1135753  Quercus X morehus R. W. Lundh 1932-9-3 155 Contra Costa 1 mi n North Peak; Mt. Diablo Quad. 609 Comment
  JEPS104771  Quercus X morehus John L. Morrison 1937-3-6 1968 Contra Costa Comment
  CAS-BOT-BC45659  Quercus agrifolia Alice Eastwood 1914-2-24 3733 Contra Costa Antioch Comment
  CDA33514  Quercus agrifolia D. G. Kelch, Troy McGregor 2010-10-3 10 .412 Contra Costa Carquinez Strait; Hornbeck trail, west of Martinez. Comment
  CHSC39479  Quercus agrifolia Tyler Williams 1984-4-18 25 Contra Costa Mt. Diablo. At Live Oak Group Camp, ca 50 yd ne of site #15, in Rock City area of Mount Diable State Park. 304 Comment
  JEPS75530  Quercus agrifolia P. F. Yorks 1975-4-10 381 Contra Costa on Hampton Rd ca 1.7 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  UC1042561  Quercus agrifolia John Thomas Howell 1950-7-5 26638 Contra Costa Nortonville Comment
  UC691325  Quercus agrifolia Mary L. Bowerman 1930-10-25 495 Contra Costa near Sloan Road; Mount Diablo, Inner Black Hills Comment
  UCD45049  Quercus agrifolia J. M. Tucker 1946-4-4 1391 Contra Costa Spreading tree 35 feet tall; steep southeast-facing slope, elevation ca. 1200 feet; ca. 100 yards northwest of intersection of Grizzly Peak Boulevard and road to Easport, Oakland hills, Contra Costa County, California. Comment
  CDA20380  Quercus agrifolia var. agrifolia P. Akers 2002-5-11 s.n.- 2 Contra Costa Northern California; Mt Diablo Summit Trail at water tank picnic area. 873 Comment
  UC691289  Quercus berberidifolia Mary L. Bowerman 1932-9-17 1584 Contra Costa Donner Canyon, w fork Mount Diablo 304 Comment
  UC691295  Quercus berberidifolia Mary L. Bowerman 1933-6-21 2341 Contra Costa Median Ridge (Donner Canyon) Mount Diablo Comment
  CAS-BOT-BC62698  Quercus chrysolepis Mary L. Bowerman 1931-5-16 852 Contra Costa Mt. Diablo summit, south side Comment
  UC1135384  Quercus chrysolepis R. W. Lundh 1932-8-24 137 Contra Costa 2 mi s Mt. Diablo (Rock City); Mt. Diablo Quad. 502 Comment
  UC405353  Quercus chrysolepis W. P. Taylor 1912-7-26 Contra Costa w side Mt. Diablo Comment
  UC405354  Quercus chrysolepis W. P. Taylor 1912-7-22 Contra Costa w side Mt. Diablo Comment
  CAS-BOT-BC86647  Quercus douglasii L. R. Abrams 1910-10-8 4347 Contra Costa Mt. Diablo 762 Comment
  JEPS111964  Quercus douglasii D. G. Kelch 2004-9-2 04 .344 Contra Costa Martinez - West: Ozol Rock and Scenic Drive East of Ozol 22 Comment
  SEINET14301650 Image available Quercus douglasii Unknown Contra Costa Near North Gate Rd., Mt. Diablo Comment
  CAS-BOT-BC86123  Quercus dumosa Mary L. Bowerman 1932-9-17 1584 Contra Costa Mount Diablo. Donner Canyon, west fork: Bank between forks 304 Comment
  UC5581  Quercus durata F. W. Bancroft 1894-7-10 Contra Costa half-way up Mt. Diablo 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
  UC691288  Quercus garryana Mary L. Bowerman 1930-10-19 491 Contra Costa Fossil Ridge (Garden-of-the-Gods) Mount Diablo Comment
  UC2028550  Quercus kelloggii Barbara Ertter 1997-9-14 15813 Contra Costa Southwest side of Mount Diablo, Secret Trail at head of Pine Canyon Comment
  UC2070456  Quercus kelloggii Barbara Ertter with Joanne Kerbavaz 2000-6-12 17311 Contra Costa Rocky City area on SSW side of Mount Diablo. Comment
  UC691286  Quercus lobata Mary L. Bowerman 1931-9-6 1036 Contra Costa n of Curry Canyon (Clayton-Livermore Road); Mount Diablo Comment
  UCD81372  Quercus palmeri J. M. Tucker 1981-4-25 4453 -G Contra Costa Antonio Souza Ranch southwest of Byron. Mt. Diablo Meridian. 309 Comment
  UCR141754  Quercus parvula var. shrevei Ellen Dean, Et al. 2000-9-13 653 Contra Costa City of El Sobrante Ridge, upslope of the terminus of Heavenly Ridge Rd., just south of junction of Heavenly Ridge Trail and Manzanita Trail, along Manzanita Trail 213 Comment
  CAS-BOT-BC104707  Quercus wislizeni John Thomas Howell 1950-6-5 26637 Contra Costa Nortonville Comment
  JEPS104763  Quercus wislizeni John L. Morrison 1937-3-6 1973 Contra Costa S of Antioch Comment
  UC1543170  Quercus wislizeni Donald G. Nelson 1938-11-6 587 Contra Costa about 1 mi beyond Marsh Creek Springs (Marsh Creek Highway, ne of Mt. Diablo) Comment
  UCD47498  Quercus wislizeni John M. Tucker 1946-4-4 1392 Contra Costa Ca. 100 yards northwest of intersection of Grizzly Peak Boulevard and road to Easport, Oakland hills, Contra Costa County, California. 365 Comment
  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
  CAS-BOT-BC362445  Rafinesquia californica Brandegee No date on label s.n. Contra Costa Mt Diablo Comment
  UC691952  Ranunculus aquatilis Mary L. Bowerman 1933-3-18 1754 Contra Costa Hidden Pond Mount Diablo Comment
  CAS-BOT-BC379107  Ranunculus aquatilis var. diffusus Mary L. Bowerman 1951-4-4 662 Contra Costa Mount Diablo, pool west of Turtle Rock (may be seen from top of rock) Comment
  JEPS112060  Ranunculus californicus D. G. Kelch 2005-4-15 05 .138 Contra Costa Rodeo Creek 100 ms west of previous site 100 Comment
  UC1126165  Ranunculus californicus R. C. Wilson 1935-3-14 135 Contra Costa Sycamore Creek Mt. Diablo Quadrangle (head) Comment
  POM194560  Ranunculus californicus Eugene Memmler 1929-4-21 2377 Contra Costa Moraga Valley Comment
  CAS-BOT-BC378938  Ranunculus californicus var. californicus Ynes Mexia 1929-4-21 2377 Contra Costa Moraga Valley Comment
  UC1126160  Ranunculus canus C. M. Belshaw 1936-5-12 2110 Contra Costa 3.7 mi ene Tassajero (Plot 31); Mt. Diablo Quadrangle Comment
  UCR263546  Ranunculus canus Barbara Ertter, R. K. Brummitt 1998-5-6 16090 Contra Costa San Francisco Bay Region, lower Donner Canyon on north base of Mount Diablo, Hetherington Trail upstream from Donner Cabin 274 Comment
  UC692190  Ranunculus canus var. canus Mary L. Bowerman 1932-3-23 1127 Contra Costa East of Donner Creek; Mount Diablo Comment
  UC9453  Ranunculus canus var. canus J. Burtt Davy 1895-4-7 915 Contra Costa Antioch Comment
  POM268450  Ranunculus canus var. laetus Lyman Benson 1935-3-16 6273 Contra Costa Mitchell Canyon near Clayton; Mt. Range: Mt. Diablo; Watershed: Walnut Creek. 244 Comment
  CDA1152  Ranunculus hebecarpus D. G. Kelch, A. G. Murdock 2005-5-1 5 .188 Contra Costa Carquinez Strait; Crockett; Edwards Canyon. Comment
  CDA33805  Ranunculus hebecarpus D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .113 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  SEINET12765193  Ranunculus lobbii Barbara Ertter, David Gowen 2006-3-1 18665 Contra Costa Upper San Leandro Reservoir Watershed (EBMUD) south of Moraga, along SE end of Rocky Ridge Road as it drops to King Cyn Rd.; 0 180 Comment
  UC2029153  Ranunculus lobbii Barbara Ertter with Mary Bowerman 1995-5-7 14035 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton. Comment
  UC1618351  Ranunculus muricatus Barbara Ertter, Chris Thayer 1993-5-7 11716 Contra Costa e of Tilden Park (1/2 mi n of Vollmer (=Bald)Peak in East Bay Municipal Utiliteis District land); East Bay Municipal Utiliteis District land 304 Comment
  UC9383  Ranunculus orthorhynchus var. bloomeri J. Burtt Davy 1897-4-17 Contra Costa Point Isabel Comment
  UC2028282  Raphanus sativus Barbara Ertter 1998-6-20 16246 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, roadside near Old Borges Ranch. Comment
  SEINET11268201  Raphanus sativus Barbara Ertter 1998-6-12 16160 Contra Costa North Gate Road on west flank of Mount Diablo, dogleg in road above raches opposite Angel Kerley trail head.; 0 579 Comment
  UC1789165  Rhamnus alaternus Barbara Ertter with Tony Morosco 1998-10-18 16431 Contra Costa NW slope of Lime Ridge Open Space just S of Ygnacio Valley Road, bottom of swale at fenceline Comment
Read comments
Apr 29 2013
  CDA29197  Rhamnus californica D. G. Kelch 2008-6-15 8 .249 Contra Costa Carquinez Strait; Crockett hills, S of Cummings Skyway, W of Crockett Blvd. Comment
  JEPS42029  Rhamnus californica subsp. californica W. L. Jepson 1924-6-25 10600 Contra Costa Moraga Ridge Comment
  UC692597  Rhamnus tomentella subsp. tomentella Mary L. Bowerman 1933-9-3 2419 Contra Costa s of Meridian-North Peak saddle; Mount Diablo Comment
  CAS-BOT-BC200697  Rhus aromatica Mary L. Bowerman 1935-5-30 3092 Contra Costa Eagle Point ridge 350 Comment
  UC2031402  Ribes amarum Barbara Ertter with David Gowen and Steve Matson 2007-3-17 18788 Contra Costa Huckleberry Botanic Regional Preserve in East Bay Hills above Montclair, dog-leg of Skyline Regional Trail at junction with trail from Pinehurst Road at base of canyon of upper San Leandro Creek Comment
  JEPS49753  Ribes californicum Rimo Bacigalupi, and Alice Howard, and Paul Hutchison 1967-3-29 9223 Contra Costa 1/4 m above road leading to Nike Station (beside Bolinger Creek) 335 Comment
  POM181150  Ribes californicum J. T. Howell 1931-2-21 5730 Contra Costa Mt. Diablo. Comment
  SBBG28501  Ribes californicum E. Mulliken 1905-1-28 Contra Costa Wildcat Cyn, Berkeley Hills Comment
  SD2124  Ribes californicum Earle Mulliken 1905-2-5 161 Contra Costa Berkeley Hills. Comment
  UC1127406  Ribes californicum R. W. Lundh 1932-8-25 143 Contra Costa Mt. Diablo Mt. Diablo Quadrangle Comment
  JEPS116743  Ribes divaricatum var. pubiflorum David Gowen 2007-3-22 667 Contra Costa Old Tunnel Rd. south of east entrance to Caldecott Tunnel. Comment
  CAS-BOT-BC168918  Ribes malvaceum Paul F. Covel 1938-5-8 s.n. Contra Costa Summit Mt. Diablo Comment
  RSA0021635  Ribes malvaceum J. T. Howell 1926-3-7 1667 Contra Costa Mt. Diablo. Comment
  CAS-BOT-BC206018  Ribes menziesii John Thomas Howell 1942-4-26 16951 Contra Costa Oakland Hills near Redwood Peak Comment
  UC692436  Ribes menziesii Mary L. Bowerman 1932-9-3 1541 Contra Costa Meridian Peak summit, by trail leading s from the house Mount Diablo Comment
  UC2029137  Ribes menziesii Barbara Ertter with Alan Prather 2003-6-7 18204 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, west end Stone Corral Trail south of Highland Ridge Trail junction. 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
  JEPS97013  Ribes sanguineum var. glutinosum R. D. Stone 1981-1-31 264 Contra Costa Huckleberry Trail Oakland Hills, near Alameda-Contra Costa county line (NE of intersection of Skyline Blvd. and Snake Rd.) Comment
  UCSB26492  Ribes sanguineum var. glutinosum Keefe, Joseph 1967-3-20 Contra Costa along Huckleberry Trail; 0.5 mile east of Skyline boulevard; near intersection with Grizzly Park Boulevard; east of Berkeley 274 Comment
  CAS-BOT-BC362959  Rigiopappus leptocladus Mary L. Bowerman 1933-5-8 2016 Contra Costa Mount Diablo. Fossil Ridge near crest, on north side by side road Comment
  UC1818896  Rigiopappus leptocladus Barbara Ertter, Mary Bowerman et al. 1995-5-7 14063 Contra Costa Three-Springs Trail on NE side of Mt. Diablo SE of Clayton, small serpentine patch at road junction Comment
  UC1818998  Robinia pseudoacacia Barbara Ertter, Tom Delendick 1996-5-2 14616 Contra Costa Mount Diablo State Park, Mitchell Canyon parking area, downstream. 182 Comment
  UC1050828  Romneya coulteri N. Floy Bracelin 1941-6-1 1344 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS111864  Rorippa nasturtium-aquaticum D. G. Kelch 2004-4-24 04 .98 Contra Costa Ca ada del Cierbo Upper Ca ada de Cierbo on fire road to cow barn along Cummings Skyway 70 Comment
  CDA28956  Rorippa palustris subsp. occidentalis D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .249 Contra Costa CA Delta; Along the old San Joaquin River Channel, S of Clifton Court Forebay and SE of Byron. Comment
  CAS-BOT-BC147410  Rosa californica John Thomas Howell; Gordon H. True 1972-6-29 48930 Contra Costa Byron Hot Springs southeast of Byron Comment
  JEPS78742  Rosa californica Edward Lee 1936-5-24 2155 Contra Costa about 1 mi se Curry Canyon; Morgan Territory, Marsh Creek Comment
  UC691162  Rosa californica Mary L. Bowerman 1930-6-26 375 Contra Costa junction of Riggs Canyon Rd and Livermore Road; Mount Diablo Comment
  UC555647  Rosa gymnocarpa Herbert L. Mason 1924-11-23 1161 Contra Costa Cashion Creek Las Trampas Ridge Comment
  UC691148  Rosa gymnocarpa Mary L. Bowerman 1931-5-21 887 Contra Costa Curry-Cave Point trail Mount Diablo (where streambed forks and on w fork) 441 Comment
  UC691149  Rosa gymnocarpa Mary L. Bowerman 1931-5-23 895 Contra Costa Alamo Canyon Mount Diablo (n-facing bank in canyon bottom) 487 Comment
  UC2028227  Rosa spithamea Barbara Ertter 1998-12-6 16470 Contra Costa Rock City area on southwest side Mount Diablo. Comment
  SJSU10413  Rubus armeniacus H. C. Reeves 1972-5-28 Contra Costa 2 mi S of Wildcat Canyon, 0.75 mi W of San Pablo Cr, Orinda Comment
  POM300600  Rubus parviflorus Mary L. Bowerman 1933-5-19 2140 Contra Costa Below Morgan Sulphur Spring. 335 Comment
  JEPS112090  Rubus ursinus D. G. Kelch 2004-5-7 04 .199 Contra Costa Ca ada del Cierbo 40 Comment
  UC2032842  Rubus ursinus Doran, Andrew Scott 2012-3-20 713 Contra Costa North east side of Brooks Island Comment
  UC1594200  Rumex acetosella Jerry Powell 1992-4-7 1635 Contra Costa Richmond Field Station Comment
  CAS-BOT-BC421866  Rumex acetosella Mary L. Bowerman 1935-5-18 3016 Contra Costa Mount Diablo. Road above Indian Ceremonial Spring: Roadbank at hairpin turn. Comment
  POM300578  Rumex acetosella Mary L. Bowerman 1935-5-18 3016 Contra Costa Road above Indian Ceremonial Spring, roadbank at hairpin turn Comment
  UC692167  Rumex conglomeratus Mary L. Bowerman 1930-8-24 420 Contra Costa Mitchell Canyon Mount Diablo Comment
  UC692208  Rumex conglomeratus Mary L. Bowerman 1935-5-30 3083 Contra Costa Donner Canyon stream Mount Diablo 152 Comment
  CDA22902  Rumex crispus D. G. Kelch 2006-7-14 6 .33 Contra Costa Carquinez Strait; Along Marine Vista Ave immmediately west of Pacheco Slough. East of Martinez. Comment
  UC407042  Rumex crispus Ira L. Wiggins 1930-4-18 4605 Contra Costa Jersey Island Comment
  UC1745555  Rumex crispus Annetta M. Carter, Florence Little, Edward Lee 1934-7-4 675 Contra Costa Marsh Creek Rd. 3 miles beyond Contra Costa Co. Sanatorium. Comment
  UC1795777  Rumex pulcher Barbara Ertter, Mary Bowerman 1995-6-11 14247 Contra Costa Shell Ridge Recreation Area southeast of Walnut Creek, at west base Mt. Diablo.; annual grassland near Indian Valley School entrance, clay soil (planted Clarkia also present). 91 Comment
  CAS-BOT-BC433753  Rumex pulcher Mary L. Bowerman 1938-5-28 3644 Contra Costa Mount Diablo. Maple Spring Comment
  UC692209  Rumex salicifolius var. salicifolius Mary L. Bowerman 1935-10-26 3346 Contra Costa 2 rd mi e Mount Diablo west entrance; Mount Diablo 228 Comment
  CDA42433  Rupertia physodes D. G. Kelch 2012-5-27 12 .073 Contra Costa Carquinez Strait Region; Pinole Valley Park. Comment
  JEPS21987  Rupertia physodes G. Thomas Robbins 1958-5-4 3823 Contra Costa along Pinehurst Road on slopes above Upper San Leandro Reservoir (in hills e of Oakland) 228 Comment
  SJSU5703  Rupertia physodes C. O. Dudley 1966-5-1 113 a Contra Costa Reliez Valley, Briones Hills, N of Lafayette 152 Comment
  UC1745890 Image available Rupertia physodes Annetta M. Carter, Edward Lee 1936-5-24 1191 Contra Costa Marsh Creek about 2 mi. SE of Curry Canyon. Comment
  CDA23066  Sagina apetala D. G. Kelch, D. A. Weinstein 2008-5-5 8 .094 Contra Costa Carquinez Strait; Richmond. W Chevy s Hill. N parking lot of Hilltop Mall. Comment
  POM208488  Sagittaria latifolia H. M. Hall 1916-8-16 10273 Contra Costa Antioch. Region of San Francisco Bay. Comment
  CDA23459  Salicornia pacifica D. G. Kelch, A. G. Murdock 2003-8-13 3 .098 Contra Costa Carquinez Strait Region; Martinez Marsh. Comment
  CDA23461  Salicornia pacifica T. C. Fuller 1965-11-24 14323 Contra Costa South side of Byron Hot Springs Road, 0.6 mile southwest of Byron-Tracy Highway, ca. 1 mile southwest of Byron. 0 Comment
  CDA23458  Salicornia subterminalis R. L. Todd 1962-11-21 Contra Costa Old River Canal bridge. 0 Comment
  UC7475  Salicornia virginica Hansen Sep 1899 Contra Costa Byron Springs Comment
  CAS-BOT-BC129908  Salix bonplandiana Alice Eastwood 1914-3-6 s.n. Contra Costa Concord Comment
  CAS-BOT-BC129912  Salix bonplandiana Ira L. Wiggins 1930-4-18 4601 Contra Costa Levee banks, Jersey Island. Comment
  CAS-BOT-BC129914  Salix bonplandiana Mary L. Bowerman 1933-11-9 2468 Contra Costa Meridian Peak; spring on ridge west of Old Government Trail, fifty feet from head of spring - Mount Diablo 533 Comment
  CAS-BOT-BC103737  Salix exigua Walter Knight; Irja Knight; John Thomas Howell; Elizabeth McClintock 1978-9-5 3218 Contra Costa Browns Island Comment
  UC407388  Salix gooddingii Ira L. Wiggins 1930-4-18 4591 Contra Costa levees, Jersey Isl. Jersey Isl. Comment
  POM300630  Salix laevigata Mary L. Bowerman 1933-5-21 2162 -a Contra Costa Sulphur Spring Canyon. Mt. Diablo. Comment
  SJSU6174  Salix laevigata C. O. Dudley 1966-4-4 74 Contra Costa Reliez Valley, Briones Hills, N of Lafayette Comment
  UC437379  Salix laevigata J. Burtt Davy 1895-4-13 1011 Contra Costa near Lafayette Comment
  UC651296  Salix laevigata Ira L. Wiggins 1930-4-18 4603 Contra Costa levee banks Jersey Isl. Comment
  POM300724  Salix laevigata Mary L. Bowerman 1931-3-14 566 Contra Costa Riggs Canyon, E side. Mount Diablo. Comment
  CDA33974  Salix lasiolepis D. G. Kelch 2011-3-31 11 .08 Contra Costa Carquinez Region; Richmond; Hilltop Lake Park. Comment
  POM300608  Salix lasiolepis Mary L. Bowerman 1933-9-15 2441 Contra Costa Hunt Spring (S face Meridian Peak). Mt Diablo. 762 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
  CAS-BOT-BC129559  Salix lasiolepis var. lasiolepis Alice Eastwood 1914-3-6 s.n. Contra Costa Redwood Canyon Comment
  CAS-BOT-BC129555  Salix lasiolepis var. lasiolepis Mary L. Bowerman 1932-8-27 1519 Contra Costa Spring south of Turtle Rock (by a large group of willows) - Mount Diablo Comment
  JEPS59865  Salsola tragus W. L. Jepson 1923-10-4 10212 a Contra Costa orchards near Antioch Comment
  CAS-BOT-BC180752  Salsola tragus Peter Rubtzoff 1951-10-7 829 Contra Costa Sand duens along lower San Joaquin River, east of Antioch Comment
  UCD125497  Salvia carduacea M. Wiesendanger 1925-5-1 1482 Contra Costa San Miguel. Comment
  JEPS62662  Salvia columbariae Mrs. E. L. Mossman 1931-4-21 149 Contra Costa Grizzly Peak; Berkeley Hills 487 Comment
  JEPS62663  Salvia columbariae Lauramay Tinsley 1927-4-19 Contra Costa Mount Diablo Comment
  UC575703  Salvia columbariae Lewis S. Rose 1935-5-16 35168 Contra Costa Mt. Diablo Comment
  POM223332  Salvia columbariae L. S. Rose 1935-5-16 s.n. Contra Costa Mt. Diablo. 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
  JEPS120273  Salvia leucophylla Barbara Ertter with David Gowen 2012-6-9 21026 Contra Costa southeast of junction of Big Springs Trail and Seaview Trail, southeastern Tilden Park in Berkeley Hills Comment
Read comments
Mar 22 2018
  JEPS112463  Salvia mellifera D. G. Kelch 2004-4-3 04 .55 Contra Costa Selby Road cut west of I-80 and Cummings Skyway junction 70 Comment
  UC25728  Salvia mellifera W. L. Jepson May 23 1891-May 24 1891 Contra Costa Mount Diablo; Region of Mount Diablo Comment
  UC691515  Salvia mellifera Mary L. Bowerman 1932-3-6 1104 Contra Costa mouth of Sycamore Canyon; Mount Diablo Comment
  UC883961  Salvia mellifera Lewis S. Rose 1941-3-22 41057 Contra Costa w slope Mt. Diablo 609 Comment
  SEINET12273224  Salvia mellifera M. T. Doutt 1930-1 89 Contra Costa Marsh Creek Comment
  JEPS75505  Sambucus mexicana P. F. Yorks 1975-5-3 422 Contra Costa on Hampton Rd. ca 1.7 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  UC1125344  Sambucus mexicana R. W. Lundh 1932-9-22 165 Contra Costa Mount Diablo Mt. Diablo Quadrangle Comment
  CHSC21630  Sanicula bipinnata Willis Ball 1975-3-9 495 Contra Costa Contra Loma Regional Park. In area #8. At the peak of a large hill ca. 560 yds s of main parking lot ca. 800 yds w of Contra Loma Blvd. 152 Comment
  UC692321  Sanicula bipinnata Mary L. Bowerman 1931-3-14 570 Contra Costa Mount Diablo, Windy Point Mount Diablo; , Windy Point Comment
  CAS-BOT-BC223245  Sanicula bipinnata Alice Eastwood 1914-3-14 5792 Contra Costa Byron Springs Comment
  SEINET10545764  Sanicula bipinnata John T. Middleton 1936-4-18 Middleton 146 Contra Costa Comment
  UCSB4634  Sanicula bipinnata Kamb, Peter; Chisaki, Francia 1950-3-18 Contra Costa Head of Pine Canyon, Mt. Diablo 533 Comment
  JEPS111612  Sanicula bipinnatifida D. G. Kelch 2004-4-3 04 .48 Contra Costa Martinez - Vine HillRidge West of 680. North of highway 4 44 Comment
  UC1795705  Sanicula bipinnatifida Barbara Ertter, Dale Sanders, Dan Norris 1994-3-26 12335 Contra Costa Peyton Hill east of I-680 east of Martinez, south of Waterfront Road 30 Comment
  OBI70552  Sanicula crassicaulis D. G. Kelch, D. A. Weinstein 2008-4-25 8 .082 Contra Costa Alvarado Park (W end of Wildcat cyn park) on N facing hillside above Hundu temple i 122 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
  UC194920  Sanicula saxatilis H. M. Hall 1916-5-31 10136 Contra Costa along east crest of Mount Diablo Mount Diablo 1158 Comment
  UC570944  Saxifraga californica Herbert L. Mason 1926-3-7 2702 Contra Costa Mount Diablo Comment
  UC692475  Saxifraga californica Mary L. Bowerman 1933-4-9 1837 Contra Costa w fork Donner Canyon; Mount Diablo, Donner Canyon 243 Comment
  SEINET3840825  Scabiosa atropurpurea Unknown 2006-6-23 6 .322 Contra Costa West Valona, West of Zampa Bridge above San Pablo avenue, along small stream draining north into the Western end of the Carquinez Strait 91 Comment
  UC1057454  Scandix pecten-veneris G. Thomas Robbins 1937-4-25 138 Contra Costa e of La Vista Comment
  UC2028002  Schinus molle Barbara Ertter with Amy Rusev 1998-1-17 15904 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
  CAS-BOT-BC111378  Schoenoplectus acutus var. occidentalis Ira L. Wiggins 1930-4-18 s.n Contra Costa Jersey Island Comment
  CAS-BOT-BC111481  Schoenoplectus americanus Volney Rattan 1879-1-1 s.n. Contra Costa Antioch Comment
  SEINET10319578  Schoenoplectus americanus W. Knight 1977-6-10 s.n. Contra Costa Sand Creek near coal-mining site of Stewartville 158 Comment
  CAS-BOT-BC111463  Schoenoplectus californicus Walter Knight; Irja Knight 1977-5-22 s.n. Contra Costa Growing at site of little corral. Antioch Dunes. 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
  UC692193  Scirpus acutus var. occidentalis Mary L. Bowerman 1938-9-17 3715 Contra Costa by the rivulet and in the marsh Big Spring Mount Diablo, Big Spring 731 Comment
  UC691975  Scirpus americanus Mary L. Bowerman 1933-4-22 1882 Contra Costa just s of highway Heather Farm (Mount Diablo); , nw end Shell Ridge Comment
  CDA15264  Scirpus maritimus G. F. Hrusa, D. Crowe 1998-5-8 14395 Contra Costa Sacramento Delta; E end of Dow Chemical property in Pittsburg. Comment
  CDA32274  Scirpus maritimus G. F. Hrusa, D. Crowe, R. York 1998-7-17 14724 Contra Costa Sacramento Delta; Colony in bottom of now dry drainage/wash through disturbed grasslands at E end of Dow Chemical property. Site clearly wet earlier in season, but w/out standing water at this time. Comment
  JEPS111898  Scirpus microcarpus D. G. Kelch 2004-7-9 04 .308 Contra Costa Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite. 60 Comment
  UC692194  Scirpus microcarpus Mary L. Bowerman 1942-10-4 3851 Contra Costa Mount Diablo Mount Diablo (Russelman Park Road) 243 Comment
  UC2027718  Scrophularia californica Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15520 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  JEPS23819  Scrophularia californica subsp. californica G. Thomas Robbins with John Weiler 1959-5-23 4025 Contra Costa w shore of Brooks Isl; San Francisco Bay, Richmond Comment
  UC691648  Scrophularia californica subsp. floribunda Mary L. Bowerman 1931-4-25 782 Contra Costa summit Mt Diablo Comment
  CHSC39483  Scutellaria tuberosa Tyler Williams 1984-4-18 17 Contra Costa In 10 yd radius of site 4 at Juniper Camp on Summit Rd. in Mount Diablo State Park. 853 Comment
  UC1606369  Scutellaria tuberosa Barbara Ertter, Brad Olson 1992-4-13 10952 Contra Costa 1 mi from Curry Point (Mount Diablo State Park, Knobcone Point Road); Mount Diablo State Park, Knobcone Point Road 487 Comment
  UC1713660  Scutellaria tuberosa Herbert L. Mason 1928-4-15 4342 Contra Costa top of Moraga Ridge Comment
  UC25837  Scutellaria tuberosa unknown 1037 Contra Costa Walnut Creek Comment
  RSA0068478  Scutellaria tuberosa Katie Gallagher, Nick Jensen 2014-4-26 200 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  CAS-BOT-BC417826  Sedella pentandra John Thomas Howell 1941-4-6 16182 Contra Costa Near Deer Flat, Mt. Diablo Comment
  UC2028051  Sedum radiatum Barbara Ertter with Ann Dennis 1998-1-25 15909 Contra Costa Donner Canyon on north side Mount Diablo, Middle Trail/Falls Trail. Comment
  RSA107411  Senecio flaccidus var. douglasii L. S. Rose 1955-10-17 55186 Contra Costa Antioch 15 Comment
  UC2032832  Senecio sylvaticus Doran, Andrew Scott 2012-3-20 702 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  UC691362  Senecio sylvaticus Mary L. Bowerman 1933-5-25 2180 Contra Costa w end s face Oyster Ridge (Mount Diablo); , , w end of s face, in burned chapa 396 Comment
  UC335828  Senecio triangularis unknown Contra Costa near Mt. Diablo; near Mt. Diablo Comment
Read comments
Feb 11 2013
  CHSC23334  Senecio vulgaris Willis Ball 1975-2-23 435 Contra Costa Contra Loma Regional Park. In area #1. Ca. 25 yds e of restroom facilities at s end of lake. 30 Comment
  CAS-BOT-BC80265  Sequoia sempervirens John Thomas Howell 1925-10-11 1500 Contra Costa Moraga Ridge, Oakland Hills Comment
  JEPS48264  Sequoia sempervirens K. D. Jones 1908-4-5 Contra Costa Redwood Peak Comment
  NY64466  Sequoia sempervirens L. S. Rose 1934-1-29 34009 Contra Costa Redwood Canyon Comment
Read comments
Apr 14 2010
  CAS-BOT-BC80262  Sequoia sempervirens H. M. Hall 1902-3-4 2700 Contra Costa San Leandro Creek Comment
  SEINET13289876 Image available Sequoia sempervirens L. S. Rose 1934-1 Contra Costa Redwood Canyon Comment
  SEINET3876309 Image available Sequoia sempervirens James K. Detling 1963-2-15 7 Contra Costa Top of Flicker Ridge near Moraga.; 0 Comment
  CDA37437  Sesbania punicea D. G. Kelch, Mike Perlmutter 2011-9-23 11 .764 Contra Costa Antioch. Dow Wetlands. Comment
  POM61913  Sidalcea diploscypha A. D. E. Elmer 1903-05 4316 Contra Costa Walnut Creek. Comment
  UC1607656  Sidalcea malviflora subsp. laciniata Barbara Ertter, Chris Thayer 1993-5-7 11704 Contra Costa ca 1/2 mi n Vollmer Peak (= Bald Peak, in East Bay Municipal Utilities District land, e of Tilden Park); n of Vollmer Peak (= Bald Peak), e of Tilden Park 457 Comment
  JEPS100088  Silene gallica G. Smick 2003-3-25 GAS 77 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS111790  Silene gallica D. G. Kelch 2005-4-24 05 .168 Contra Costa Franklin Canyon. Collier Hill. West Carbon 60 Comment
  UC692654  Silene gallica Mary L. Bowerman 1931-4-4 636 Contra Costa two mi by road from North Gate (Mount Diablo); , two mi from North Gate Comment
  UC2029065  Silene laciniata subsp. californica Barbara Ertter 2000-7-29 17440 Contra Costa Donner Basin on north side of Mount Diablo, lower Middle Trail between first creek crossing and Falls Trail junction. Comment
  UC1070221  Silybum marianum R. C. Wilson 1935-3-12 120 Contra Costa 1 1/2 mi ne Danville; Mt. Diablo Quad. Comment
  UCR16901  Silybum marianum M. Wexler 1973-5-22 s.n. Contra Costa El Sobrante, across the street from the intersection of Jo-lin Ct. and Valley View Rd. 45 Comment
  CHSC23876  Sinapis arvensis Willis Ball 1975-2-23 445 Contra Costa Contra Loma Regional Park. In area #1. Ca. 10 yds s of lake ca. 50 yds. w of restroom facilities at s end of lake. 33 Comment
  UC691255  Sinapis arvensis Mary L. Bowerman 1931-4-11 710 Contra Costa Ridge e of lower Pine Canyon (Mount Diablo); Mount Diablo Comment
  CAS-BOT-BC74939  Sinapis arvensis Walter Knight 1978-5-1 s.n. Contra Costa Contra Loma Regional Park, 6 miles south of San Joaquin River. 68 Comment
  UC691054  Sisymbrium officinale Mary L. Bowerman 1930-6-3 231 Contra Costa Mount Diablo, West road, 1.9 mi from entrance, (West road = North road) Mount Diablo; , West road Comment
  CHSC24841  Sisyrinchium bellum M. A. Callahan 1976-4-15 17 Contra Costa Top of ridge ca. 145m e of house at 1976 Mohawk Dr. Pleasant Hill. 152 Comment
  JEPS125629  Sium suave Daniel Slakey with CNPS Volunteers 2015-9-12 228 Contra Costa Central part of large slough that runs north-south through Browns Island; east side of slough. Comment
  JEPS112505  Smilacina racemosa A. G. Murdock 2004-4-30 245 Contra Costa Vaca Canyon 165 Comment
  CAS-BOT-BC157456  Solanum umbelliferum D. D. Keck 1933-11-2 2619 Contra Costa 1 mi. S.E. of Oakley Comment
  POM280561  Solanum umbelliferum Lyman D. Benson 1931-3-18 2658 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 Comment
  UC176058  Solanum umbelliferum Dr. J. H. Goodspeed 1913-5-3 Contra Costa Moraga Valley Comment
  UCSB24371  Solanum umbelliferum McMinn, Howard; Maino, Evelyn 1931-3-9 Contra Costa Leona Heights Comment
  UC1795730  Soliva sessilis Barbara Ertter, Mary Bowerman et al. 1995-5-7 14041 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, damp road bed, clayey, in grassy flat south of pond, near edge of blue oak forest. Comment
  UC2028125  Soliva sessilis Barbara Ertter with Richard K. Brummitt 1998-5-6 16082 Contra Costa Lower Donner Canyon on north base of Mount Diablo,near Donner Cabin site. Comment
  UC2028128  Soliva sessilis Barbara Ertter with Richard K. Brummitt 1998-5-6 16080 Contra Costa Base of Mitchell Rock Trail on north base of Mount Diablo. Comment
  CDA15245  Sonchus oleraceus G. F. Hrusa, D. Crowe 1998-5-8 14376 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Comment
  CHSC23344  Sonchus oleraceus Willis Ball 1975-3-2 468 Contra Costa Contra Loma Regional Park. In area #5. On the w side of a hill in area #5 ca. 10 yds. e of water on e side of lake. 32 Comment
  CAS-BOT-BC374592  Sonchus oleraceus Ira L. Wiggins 1930-4-18 4608 Contra Costa Jersey Island Comment
  CAS-BOT-BC374594  Sonchus oleraceus R. E. Frenkel 1963-8-18 263 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  UC1795889  Spartina densiflora Barbara Ertter, Rich Rabeler 1994-6-18 12835 Contra Costa Pt. Pinole Regional Shoreline at north end of Richmond; beach on North side Whittell Marsh. Comment
  UCD99169  Spergula arvensis P. B. Kennedy 1914-3-15 4658 Contra Costa Sunset Cemetary. Comment
  UC2028042  Spergula arvensis subsp. arvensis Barbara Ertter 1998-3-1 15925 Contra Costa Diablo Foothills Regional Park, Ridge Trail on ridge east of Old Borges Ranch. Comment
  CAS-BOT-BC390239  Spergularia macrotheca var. leucantha Mary L. Bowerman 1933-4-22 1881 Contra Costa Mount Diablo. Shell Ridge east of highway: Heather Farm Comment
  CDA9448  Spergularia macrotheca var. longistyla D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .226 Contra Costa Byron Airport. Comment
  UCD33429  Spergularia macrotheca var. longistyla Beecher Crampton 1968-3-27 8237 Contra Costa Contra Costa County, S.E. corner of County, ca. 3.5 miles south of Byron. Comment
  UC1563860  Spergularia marina Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8135 Contra Costa alkali sink w and adjacent to Clifton Court Forebay (ca 15 air mi sw of Stockton) 0 Comment
  UC2029011  Spergularia rubra Barbara Ertter with Dan Norris 1999-11-14 16852 Contra Costa Black Diamond Mines Regional Preserve, south of parking area for Somersville townsite. Comment
  RSA0098705  Spergularia villosa William J. Ferlatte, L. Maynard Moe 1970-4-27 1258 Contra Costa San Francisco Bay, Red Rock Island; northwest side. Comment
  UC416579  Stachys ajugoides var. rigida Ivar Tidestrom June, 1895 Contra Costa Crockett Comment
  POM312580  Stachys albens Malcolm A. Nobs, S. Galen Smith 1949-7-8 943 Contra Costa Otto s Black Bass Resort, 4 miles north of Kingston. Comment
  UCD125808  Stachys albens Malcolm A. Nobs; S. Galen Smith 1949-7-8 943 Contra Costa Otto's Black Bass Resort, 4 miles N of Kingston. 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
  JEPS100087  Stellaria media S. O'Neil 2003-2-18 SEO 2 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC386942  Stellaria media Mary L. Bowerman 1932-2-13 1085 Contra Costa Alamo Canyon 365 Comment
  UCD33149  Stenotaphrum secundatum Beecher Crampton 1966-10-18 7817 Contra Costa Contra Costa County, Kensington, Berkeley Hills Blake Garden, UC Berkeley Dept. 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
  UC1606432  Stephanomeria elata Barbara Ertter, Brad Olson 1993-10-30 12284 Contra Costa Carquinez Strait Regional Shoreline/Trail west of junction of San Pablo Avenue and Vista del Rio west of Crockett. Comment
  UC2031444  Stephanomeria elata Barbara Ertter with Brad Olson 1991-10-13 10856 Contra Costa SW corner of Point Richmond Comment
  UC2028016  Stephanomeria elata Barbara Ertter 1997-9-14 15819 Contra Costa Southwest side of Mount Diablo, Wall Point Road on open sandstone ridge northwest of Wall Point/ Comment
  SEINET11800583  Stephanomeria virgata L. S. Rose 1938-1 38308 Contra Costa Marsh Creek, 6 mi E of Clayton 152 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
  UC571570  Stephanomeria virgata subsp. pleurocarpa H. K. Sharsmith 1933-9-24 Contra Costa highway w Walnut Creek Comment
  UC691445  Stephanomeria virgata subsp. pleurocarpa Mary L. Bowerman 1930-7-20 411 Contra Costa near Silver Spring (by the road); Mount Diablo Comment
  UC1950089  Stipa cernua Barbara Ertter 1990-5-19 8998 Contra Costa Layfayette Ridge of Briones Regional Park N of Lafayette; S-facing slope S of Russell Peak Comment
  UC2032833  Stipa pulchra Doran, Andrew Scott 2012-3-20 703 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  CAS-BOT-BC87101  Streptanthus glandulosus subsp. glandulosus Mary L. Bowerman 1935-6-8 3123 Contra Costa Mount Diablo. West road 2 miles from entrance. Comment
  UC691125  Streptanthus glandulosus subsp. glandulosus Mary L. Bowerman 1935-5-8 2968 Contra Costa North Road 2 mi from North Gate (just w of chaparral, se exposure); Mount Diablo 237 Comment
  CAS-BOT-BC87339  Streptanthus hispidus J. W. Congdon 1896-5-30 s.n. Contra Costa Mount Diablo. Comment
  CAS-BOT-BC87342  Streptanthus hispidus Alice Eastwood 1921-6-11 10603 Contra Costa Mount Diablo near summit. Comment
  CAS-BOT-BC87345  Streptanthus hispidus Mrs. E. C. Sutliffe 1920-5-30 s.n. Contra Costa Mount Diablo. Comment
  CAS-BOT-BC87346  Streptanthus hispidus Alice Eastwood 1915-5-30 4526 Contra Costa Mount Diablo. Comment
  JEPS27001  Streptanthus hispidus E. W. Hicks 1917-3-24 112 Contra Costa Mt. Diablo 762 Comment
  UC188201  Streptanthus hispidus J. G. Lemmon 1878-4-23 Contra Costa side Mt. Diablo Comment
  UC205840  Streptanthus hispidus Paul L. Wilson 1921-5-15 Contra Costa Mt. Diablo Comment
  UC630664  Streptanthus hispidus John L. Morrison and Lincoln Constance 1938-5-5 3027 Contra Costa along Deer Flat trail ca 1/8 mi n Juniper Camp (steep n-facing talus slope); Mt. Diablo Comment
  UC2028454  Stuckenia pectinata Barbara Ertter with Joanne Kerbavaz 2000-8-20 17507 Contra Costa Hidden Pond on south side of Mount Diablo Comment
  CAS-BOT-BC422921  Stylomecon heterophylla R. F. Hoover 1968-5-16 11091 Contra Costa Upper Marsh Creek. Comment
  CAS-BOT-BC422909  Stylomecon heterophylla Mary L. Bowerman 1932-5-6 1410 Contra Costa Mount Diablo. Mitchell Canyon: West bank by floor of canyon. 243 Comment
  RSA217241  Stylomecon heterophylla D. E. Breedlove 1970-4-18 17430 Contra Costa At the north edge of Lafayette above Laurel Drive 244 Comment
  RSA446229  Stylomecon heterophylla John Doyen, Glenn Gorelick 1966-4-22 s.n. Contra Costa Russelman Park. Mt. Diablo State Park. Comment
  UC1076414  Symphoricarpos albus var. laevigatus Herbert L. Mason 1924-11-23 1158 Contra Costa Cashion Comment
  JEPS111771  Symphoricarpos mollis D. G. Kelch 2004-5-2 04 .162 Contra Costa Crockett - Edwards Canyon Edwards Canyon, Crockett, Contra Costa County, CA 125 Comment
  JEPS111776  Symphoricarpos mollis D. G. Kelch 2005-5-1 05 .181 Contra Costa Crockett - Edwards Canyon 150 Comment
  UC1076412  Symphoricarpos mollis Herbert L. Mason 1929-5-7 5264 Contra Costa Moraga Ridge Comment
  UC28650  Symphoricarpos mollis Edw. L. Greene 1892-6-20 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC97700  Symphyotrichum chilense John Thomas Howell 1925-11-1 1534 Contra Costa Moraga Ridge, Oakland Hills Comment
  UC2046321  Symphyotrichum lanceolatum var. hesperium Barbara Ertter 2000-10-26 17550 Contra Costa West side Mount Diablo, Little Pine Creek near park boundary, just upstream from Falcon Road creek crossing. Comment
  UCD150914  Symphyotrichum lentum James A. Neilson Jr. 1972-10-22 s.n. Contra Costa Walnut Creek drainage, west and south of railroad and leves. Elevation estimated using Google Earth by label maker. 3 Comment
  UC1606281  Symphyotrichum subulatum Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10868 Contra Costa Dow Wetlands Preserve, just W of Antioch marina; along levee at water's edge, accessed from marina. Comment
  CAS-BOT-BC98331  Symphyotrichum subulatum var. parviflorum Walter Knight 1978-8-27 3196 Contra Costa Contra Loma Regional Park, at reservoir's edge. Comment
  CAS-BOT-BC211562  Tamarix parviflora Walter Knight 1979-4-13 3358 Contra Costa Browns Island, old homestead site adjacent to Point Emmett Comment
  JEPS96865  Tamarix parviflora Dean W. Taylor 1971-4-3 986 Contra Costa along Highway 4 in Contra Coasta County 1 mile east of the junction with Byron Road 3 Comment
  UC1607567  Tamarix parviflora Barbara Ertter 1993-4-2 11480 Contra Costa west of Crockett (below Vista Road, abandoned railroad station); Carquinez Regional Park Comment
  CDA37996  Taraxia ovata D. G. Kelch, A. G. Murdock 2003-3-28 3 .086 Contra Costa Carquinez Strait Region; Rodeo - Lone Tree Point. Comment
  UCD96763  Thalictrum fendleri var. polycarpum Margaret Siri 1974-5-12 39 Contra Costa East-west canyon off-shoot, east of the bottom of Rifle Range Road, Wildcat Canyon. Comment
  JEPS54205  Thysanocarpus curvipes W. L. Jepson May 22 1891-May 23 1891 5 h Contra Costa Mt. Diablo Comment
  UC14311  Thysanocarpus curvipes Chestnut and Drew 1889-4-17 Contra Costa Summerville Comment
  UC857551  Thysanocarpus curvipes Lewis S. Rose 1940-4-11 40183 Contra Costa 11 mi se Clayton (Marsh Creek); Marsh Creek 45 Comment
  UCR143524  Thysanocarpus curvipes L. S. Rose 1933-4-17 33096 Contra Costa Antioch 30 Comment
  CAS-BOT-BC88246  Thysanocarpus curvipes Alice Eastwood 1914-2-24 3737 Contra Costa Anticoch. Comment
  UC11038  Thysanocarpus curvipes subsp. curvipes W. H. Brewer 1862-5-12 1083 Contra Costa Mt. Diablo Comment
  SEINET10482179  Thysanocarpus curvipes var. elegans John T. Middleton 1936-4-18 Middleton 140 Contra Costa Briones valley. Comment
  UC10988  Thysanocarpus laciniatus W. H. Brewer 1862-5-17 1102 Contra Costa on dry hill n Mount Diablo; n of Mount Diablo Comment
  UC1818959  Torilis arvensis Barbara Ertter, Kristin Ertter 1995-7-11 14480 Contra Costa Pine Creek on West side of Mt. Diablo southwest of Walnut Creek; partial shade of oak forest, road along Pine Cr. in Diablo Foothills Regional Park 152 Comment
  UC692376  Torilis nodosa Mary L. Bowerman 1930-6-3 230 Contra Costa North road 1.9 miles from entrance 167 Comment
  UC692379  Torilis nodosa Mary L. Bowerman 1933-5-21 2149 Contra Costa Grape Spring (off Sulphur Spring Canyon) Comment
  JEPS63916  Toxicodendron diversilobum W. L. Jepson 1931-4-5 15716 Contra Costa Nortonville n.e. Contra Costa Co., Nortonville Comment
  UC1130477  Toxicodendron diversilobum R. C. Wilson 1935-2-26 107 Contra Costa 1 mi. s.w. Nortonville; Mt. Diablo Quad. Comment
  SEINET5577082  Toxicodendron diversilobum H. S. Gentry 1931-1 56 Contra Costa Collected on Mt. Diablo near Buckle Point. Comment
  CDA8354  Tragopogon porrifolius D. G. Kelch, A. G. Murdock 2003-4-1 03 .093-B Contra Costa Carquinez Strait; Crockett. E bound entrance to Carquinez Bridge. Comment
  UC1776772  Tribulus terrestris T. C. Fuller 1961-9-13 6999 Contra Costa Almond orchard, S of hwy 4, 0.1 mi W of Antioch Bridge Rd., 2 mi W of Oakley. Comment
Read comments
Sep 1 2011
  UC2012949  Tribulus terrestris Barbara Ertter with CNPS Volunteers 1990-9-16 9643 Contra Costa NE Contra Costa Co. Bethel Island NE of Brentwood, E end of Gateway Road at W edge of Franks Tract State Regional Area. Comment
  JEPS63121  Trichostema lanceolatum W. L. Jepson 1895-9-14 14880 Contra Costa Lafayette Comment
  UC416593  Trichostema lanceolatum V. King Chestnut 1887-9-18 Contra Costa Mount Diablo Comment
  JEPS112044  Trientalis latifolia A. G. Murdock 2004-4-30 264 Contra Costa Vaca Canyon 165 Comment
  RSA14951  Trifolium albopurpureum L. S. Rose 1935-5-16 35174 Contra Costa Mt. Diablo Comment
  RSA161241  Trifolium albopurpureum Peter H. Raven, H. L. Mason, R. Ornduff 1957-4-4 10575 Contra Costa Hill near road 6.3 miles W. of Byron. Comment
  UC165553  Trifolium albopurpureum var. albopurpureum J. Burtt Davy 1895-1 956 Contra Costa Antioch Comment
  UC692682  Trifolium albopurpureum var. albopurpureum Mary L. Bowerman 1933-4-26 1922 Contra Costa ridge ese the peak (s face); Mt. Diablo, North Peak Comment
  UC165535  Trifolium albopurpureum var. dichotomum J. Burtt Davy 1895-1 949 Contra Costa Antioch Comment
  UC165554  Trifolium albopurpureum var. olivaceum J. Burtt Davy 1895-1 955 Contra Costa Antioch Comment
  UC630759  Trifolium albopurpureum var. olivaceum P. B. Kennedy 1925-4-26 Contra Costa above old rd to reservoir; Mt. Diablo Comment
  JEPS123455  Trifolium angustifolium Zoya Akulova-Barlow 2011-4-29 s.n. Contra Costa Wildcat Canyon Regional Park. Belgium Trail. Comment
  UC2070480  Trifolium angustifolium Barbara Ertter 2002-8-24 18018 Contra Costa NE base of Mount Diablo, connector trail paralleling Morgan Territory Road. Comment
  UC697198  Trifolium barbigerum Mary L. Bowerman 1942-5-24 3843 Contra Costa lower Rock City Camp Mount Diablo, Fossil Ridge 457 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
  CDA27905  Trifolium bifidum var. decipiens D. G. Kelch, A. G. Murdock 2005-5-1 5 .199 Contra Costa Carquinez Strait Region; Crockett - Edwards Canyon. Lower Edwards Canyon. Comment
  POM203635  Trifolium bifidum var. decipiens J. T. Howell 1933-5-14 11264 Contra Costa Hills east of St. Marys college Comment
  UC692242  Trifolium bifidum var. decipiens Mary L. Bowerman 1935-4-19 2872 Contra Costa ca 7 mi w entrance (Northgate) (by rd, ridge w of the power poles, above the rd junction); Mount Diablo 670 Comment
  UC2028114  Trifolium campestre Barbara Ertter with Richard K. Brummitt 1998-5-6 16095 Contra Costa Donner Canyon Trail near Regency Drive trailhead, north base of Mount Diablo. Comment
  CDA29796  Trifolium ciliolatum D. G. Kelch, Troy MacGregor 2009-5-1 9 .265 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  UC517489  Trifolium ciliolatum John Thomas Howell 1933-5-14 11245 Contra Costa e St. Mary's College (hills) Comment
  UC555456  Trifolium ciliolatum H. L. Mason 1929-4-25 5204 Contra Costa Marsh Creek Rd Comment
  CDA33837  Trifolium ciliolatum D. G. Kelch 2010-5-15 10 .122 Contra Costa Mt. Diablo. Trail from Juniper Camp to Deer Flat. 0 Comment
  UC165576  Trifolium depauperatum var. amplectens J. Burtt Davy 1895-1 993 Contra Costa Antioch Comment
  POM313531  Trifolium depauperatum var. amplectens P. B. Kennedy 1929-4-25 10245 Contra Costa Briones Valley, Marsh Creek road. 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
  UCD33428  Trifolium depauperatum var. depauperatum Beecher Crampton 1968-3-27 8236 a Contra Costa SE corner of County, ca. 3.5 miles south of Byron. Comment
  UC1607665  Trifolium depauperatum var. truncatum Barbara Ertter with Michelle Seidl 1992-3-14 10921 Contra Costa E of Mount Diablo; Morgan Territory Regional Preserve Comment
  UC16522  Trifolium depauperatum var. truncatum Harley P. Chandler 1901-3-22 842 Contra Costa Concord Comment
  UC555355  Trifolium depauperatum var. truncatum H. L. Mason 1929-3-15 5061 Contra Costa ca 5 mi from Brentwood (Marsh Creek Rd) Comment
  CDA29487  Trifolium dubium D. G. Kelch, Troy MacGregor 2009-5-1 9 .282 Contra Costa Carquinez Strait; Fernandez Ranch in valley bottom along Christie Rd. Comment
  UC16539  Trifolium fucatum J. Burtt Davy 1900-3-24 6532 Contra Costa Stege Comment
  UC692316  Trifolium fucatum Mary L. Bowerman 1932-3-23 1124 Contra Costa betw Monument and Concord (Oak Grove School junction); Mount Diablo Comment
  RSA195421  Trifolium fucatum var. fucatum C. P. Smith 1922-5-20 3532 Contra Costa Lafayette - trolly line. Comment
  JEPS100103  Trifolium glomeratum G. Smick 2003-5-8 GAS 177 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1618357  Trifolium gracilentum Barbara Ertter, Chris Thayer 1993-5-7 11712 Contra Costa 1/2 mi n of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land e of Tilden Park (s of Wildcat Canyon Road); East Bay Municipal Utilities District Comment
  UC16548  Trifolium gracilentum Harley P. Chandler 1901-4-5 957 Contra Costa Mount Diablo Comment
  UC517488  Trifolium gracilentum John Thomas Howell 1933-5-14 11249 Contra Costa e St. Mary's College (hills) Comment
  UC692678  Trifolium gracilentum Mary L. Bowerman 1935-4-26 2908 Contra Costa w Indian Ceremonial Springs; Mount Diablo 1005 Comment
  UC692679  Trifolium gracilentum Mary L. Bowerman 1932-4-27 1389 Contra Costa w Riggs Canyon (Oyster ridge, s face of canyon); Mount Diablo Comment
  JEPS65989  Trifolium microdon W. L. Jepson May 23 1891-May 24 1891 13661 Contra Costa Mt. Diablo Comment
  UC16656  Trifolium monanthum var. monanthum Maclean 1875-7-5 Contra Costa Mt. Diablo Comment
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Feb 14 2013
  UC631281  Trifolium oliganthum P. B. Kennedy 1925-4-26 Contra Costa above old trail down to Country Club (meadow); Mt. Diablo Comment
  JEPS4442  Trifolium oliganthum W. L. Jepson 1891-6-9 13698 Contra Costa Fish Ranch Comment
  UC2028950  Trifolium repens Barbara Ertter 2000-7-16 17389 Contra Costa lower Pine Creek in Diablo Foothills Regional Park. Comment
  JEPS111086  Trifolium subterraneum Lee Echols 2003-4-15 s.n. Contra Costa S of Lark Drive and N of EPA buidling, within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  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
  CHSC116629  Trifolium tomentosum Lowell Ahart; Josephine Guardino 2016-4-19 20760 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. On both sides of the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  SEINET10577416  Trifolium tridentatum var. tridentatum A. Arthur Heller 1908-4-16 Heller s.n. Contra Costa Sand hills east of Antioch 23 Comment
  SJSU5771  Trifolium variegatum C. O. Dudley 1966-4-16 Contra Costa Reliez Valley, Briones Hills N of Lafayette Comment
  CHSC23357  Trifolium variegatum var. major Willis Ball 1975-3-26 515 Contra Costa Contra Loma Regional Park. In area #3. On n facing slope of large hill in area #3. Ca. 60 yds due nw of dam. Comment
  JEPS4408  Trifolium variegatum var. variegatum W. L. Jepson 1891-6-9 13707 Contra Costa Fish Ranch Comment
  CDA15260  Trifolium willdenovii G. F. Hrusa, D. Crowe 1998-5-8 14391 Contra Costa Sacramento Delta; E end of Dow Chemical property in Pittsburg. Comment
  CDA29759  Trifolium willdenovii D. G. Kelch, Troy MacGregor 2009-5-1 9 .264 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  SEINET7096740  Trifolium willdenovii A. G. Vestal 1955-4-1 3586 Contra Costa Ca. 1.9 miles west of Byron on the Camino Diablo Road. NAD27, 37? deg. 51' 45ao, -121?_ 40' 26ao (converted to WGS84 decimal degrees) Comment
  UC16747  Trifolium willdenovii H. P. Chandler 1900-3-24 587 Contra Costa Briones HIlls Mt. Diablo region Comment
  UC55885  Trifolium willdenovii H. M. Hall 1901-3-22 1705 Contra Costa Martinez 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
  UC1818873  Triglochin maritima Barbara Ertter, Brad Olson 1994-5-7 12765 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge, edge of San Francisco Bay. Edge of marsh. Comment
  UCD138178  Triglochin maritima Mr. Nevin 1924-3-24 s.n. Contra Costa Antioch. Comment
  UC1619920  Triglochin striata Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10714 Contra Costa Browns Island n of Pittsburg (near confluence of Sacramento and San Joaquin Rivers opposite Pittsburg Marina, at (Botany Cove)); Browns Island Comment
  UC508  Triglochin striata Jos. Burtt Davy 1900-6-7 6676 Contra Costa Martinez Comment
  JEPS78612  Triglochin striata Walter Knight, L. R. Heckard and Bert Johnson 1978-9-8 3299 Contra Costa Botany Cove Browns Island, Botany Cove Comment
  UC1364378  Trillium chloropetalum J. D. Freeman with R. F. Freeman 1967-5-2 570 Contra Costa 2 mi. s.w Moraga (1 mi. s. of Canyon P.O.) Comment
  UC367060  Trillium chloropetalum J. G. Lemmon April, 1878 Contra Costa Mt. Diablo and Oakland Hills Comment
  UC1046443  Triphysaria eriantha subsp. eriantha Alex D. Hawkes and R. Bacigalupi 1951-4-21 4772 Contra Costa meadow near Walnut Creek; meadow near Walnut Creek Comment
  RSA653988  Trisetum canescens Beecher Crampton 1956-5-14 3423 Contra Costa 2 miles W of Martinez, on road to Crockett. Comment
  UCD36927  Trisetum canescens Beecher Crampton 1956-5-14 3423 Contra Costa 2 miles west of Martinez, on road to Crockett. Comment
  JEPS112493  Triteleia hyacinthina D. G. Kelch 2005-4-24 05 .169 Contra Costa Franklin Canyon. Collier Hill. West Carbon 60 Comment
  CHSC22959  Triteleia laxa Robert A. Schlising; Et al. 1962-4-7 2144 Contra Costa Along road by Antioch Reservoir. Comment
  JEPS100058  Triteleia laxa G. Smick 2003-4-10 GAS 136 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS58065  Triteleia laxa W. L. Jepson 1918-6-3 7569 Contra Costa Donner Canyon Mt. Diablo 304 Comment
  SEINET3127299  Triteleia laxa H. A. Walker 1906-1 148 Contra Costa Vicinity of Berkeley Comment
  CAS-BOT-BC67404  Tropidocarpum gracile Alice Eastwood 1921-4-18 10295 Contra Costa Antioch. Comment
  JEPS68961  Tropidocarpum gracile Edward Lee 1935-3-10 1239 Contra Costa e. Antioch (Antioch Sand Dunes); Antioch Sand Dunes Comment
  CAS-BOT-BC67408  Tropidocarpum gracile Niall McCarten; V. I. Dains 1986-6-11 03231145 Contra Costa 500 yards west of Camino Diablo bridge over Kellogg Creek. Comment
  CAS-BOT-BC73895  Turritis glabra Mary L. Bowerman 1932-5-6 1431 Contra Costa Mitchell Canyon. At end of road. 251 Comment
  UC1241770  Typha Malcolm A. Nobs and S. Galen Smith 1949-6-28 879 Contra Costa on road to Martinez about two mi s Crockett Comment
  JEPS121002  Typha angustifolia D. G. Kelch 2003-8-13 03 .105 Contra Costa Martinez Marsh Comment
  CDA32862  Ulmus parvifolia D. G. Kelch 2010-10-5 10 .428 Contra Costa The Delta.; Antioch shoreline. West of Fulton shipyard. Comment
  CHSC22748  Umbellularia californica Robert A. Schlising 1962-2-21 2078 Contra Costa Berkeley-Oakland Hills of westernmost part of county. Comment
  SEINET3559460 Image available Umbellularia californica Lewis S. Rose 1933-10-22 33386 Contra Costa Wildcat Canyon. Comment
  UC588152  Umbellularia californica Annetta Carter 1937-3-20 1224 Contra Costa 2 mi nw of Orinda (Lake Orinda Road); Lake Orinda Road 121 Comment
  SEINET12102545  Umbellularia californica M. T. Doutt 1930-1 97 Contra Costa Marsh Creek Comment
  SEINET5339125  Umbellularia californica P. Del Monte 1976-3-28 s.n. Contra Costa Morgan territory road, 1 mile North of Curry Creek Park. 122 Comment
  CAS-BOT-BC381828  Uropappus lindleyi Mary L. Bowerman 1935-4-17 2831 Contra Costa Mount Diablo. West road 2 miles from entrance 237 Comment
  SEINET3150246  Uropappus lindleyi T. S. Brandegee sn Contra Costa Antioch Comment
  UC1795024  Uropappus lindleyi R. K. Brummitt and B. Ertter 1998-5-13 19837 Contra Costa Mt Diablo, just below summit on S side 1000 Comment
  UC36691  Uropappus lindleyi H. M. Hall 1901-4-5 1731 Contra Costa Mt. Diablo 457 Comment
  UC2029095  Urospermum picroides Barbara Ertter 1990-6-18 9133 Contra Costa Tilden Regional Park, along Nimitz hiking/bicycle trail near Inspiration Point Comment
  RSA0024903  Urtica Peter Rubtzoff 1968-9-18 5963 Contra Costa North Gate Road, ca. 5 miles northwest of Mt. Diablo State Park north entrance. Comment
  JEPS111920  Urtica dioica subsp. holosericea Dean G. Kelch and Andrew G. Murdock 2004-5-7 DGK 04 .197 Contra Costa Canada del Cierbo. Comment
  POM210640  Urtica dioica subsp. holosericea Joseph A. Ewan 1933-10-15 8018 Contra Costa SW slope of Mount Diablo. Comment
  UC1050825  Verbascum N. Floy Bracelin 1943-6-20 1346 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1050820  Verbascum olympicum N. Floy Bracelin 1943-5-30 1352 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CDA40699  Verbena lasiostachys var. scabrida D. G. Kelch 2005-7-14 5 .461 Contra Costa Carquinez Strait Region; Upper Canada del Cierbo. Comment
  UC2029170  Verbena lasiostachys var. scabrida Barbara Ertter 2000-7-16 17409 Contra Costa Pine Creek on WNW base of Mount Diablo. Comment
  UC407386  Veronica peregrina subsp. xalapensis Ira L. Wiggins 1930-4-17 4581 Contra Costa 1/4 mi s of Byron Comment
  CHSC21626  Veronica serpyllifolia subsp. serpyllifolia Willis Ball 1975-3-26 510 Contra Costa Contra Loma Regional Park. In area #1. On s side of lake ca. 50 yds e of restroom facilities. 30 Comment
  UC1050160  Viburnum cylindricum N. Floy Bracelin 1943-10-24 2368 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC691755  Viburnum ellipticum Mary L. Bowerman 1933-5-21 2162 Contra Costa Sulphur Spring Canyon, ridge between the two main forks, on the w side Mount Diablo 365 Comment
  UC1050168  Viburnum japonicum N. Floy Bracelin 1944-4-23 2377 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS113073  Viburnum rigidum Barbara Ertter 2001-10-29 17810 Contra Costa Tilden Regional Park, Selby Trail and Wildcat Gorge upstream from Lake Anza, understory of mixed forest. Occasional lax shrub to 2--3 m tall. Comment
  UC1005836  Viburnum suspensum N. Floy Bracelin 1945-5-27 2852 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1050717  Viburnum trilobum N. Floy Bracelin 1941-4-13 1134 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  RSA654109  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
  JEPS100100  Vicia sativa subsp. sativa G. Smick 2003-3-25 GAS 75 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CDA42434  Vicia villosa D. G. Kelch 2012-5-27 12 .075 Contra Costa Carquinez Strait Region; Pinole Valley Park. Comment
  CHSC116652  Vicia villosa subsp. varia Lowell Ahart; Josephine Guardino 2016-4-19 20764 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. In the middle of the dirt road, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  JEPS127049  Vicia villosa subsp. varia Lowell Ahart, Josephine Guardino 2016-4-19 20764 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
  UCD109027  Vicia villosa subsp. varia Rimo Bacigalupi; L. Heckard, P. Silva 1962-4-16 8439 Contra Costa Adjacent to U.S. Highway 40. 2 miles south of Pinole Junction. Comment
  CDA15257  Vicia villosa subsp. villosa G. F. Hrusa, D. Crowe 1998-5-8 14388 Contra Costa Sacramento Delta; E end of Dow Chemical property in Pittsburg.