Search Results — 2000 specimen records retrieved (1336 records with coordinates)
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Results for search: County=CONTRA COSTA; Source=All;   

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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
  UC1187354  Abies bracteata Rimo Bacigalupi 1960-4-4 7360 Contra Costa w slopes of upper Wildcat Canyon ((on short side of road toi corporation yard)); Tilean Regional Park, Berkeley Hills 297 Comment
Read comments 1
  UC1719700  Acacia baileyana Barbara Ertter 1997-1-5 15430 Contra Costa Ygnacio Valley Road across Lime Ridge, S-facing roadcut Comment
  UC1779710  Acacia dealbata Rudolf Schmid 1997-5-21 1997 -13 Contra Costa Hillside Natural Area, El Cerrito; NW of King Ct. entrance. 175 Comment
Read comments Mar 25 2010
  UC1779711  Acacia verticillata Rudolf Schmid 1997-5-21 1997 -12 Contra Costa Hillside Natural Area, El Cerrito; NW of King Ct. entrance. 175 Comment
  UCD104651  Acacia verticillata Rudolf Schmid 1997-5-21 1997 -13 Contra Costa Hillside Natural Area, El Cerrito; nw. of King Ct. entrance. 575 Comment
  JEPS13005  Acaena pinnatifida var. californica Rimo Bacigalupi with G. T. Robbins and Keith Harrison 1955-5-13 5062 Contra Costa opposite Mira Vista Country Club (hilltop just to w. of Arlington Ave., hills opposite El Cerrito) 198 Comment
  JEPS75525  Acer macrophyllum P. F. Yorks 1976-4-6 124 Contra Costa on Hampton Road ca 1.7 km s Bear Creek Road (e of road, n of Briones Reservoir); Hampton Road Natural Reserve 200 Comment
  UC18113  Acer macrophyllum J. Burtt Davy May 1898 Contra Costa creek at San Ramon region of Mount Diablo, San Ramon Comment
  SBBG27297  Acer negundo A. Carter 1937-3-28 1227 Contra Costa Moraga Valley, 2.5 mi N of Moraga 182 Comment
  POM284638  Acer negundo subsp. californicum Lyman D. Benson 1931-3-18 2656 Contra Costa Walnut Creek. 61 Comment
  JEPS42725  Acer negundo var. californicum W. L. Jepson 1908-8-16 3084 Contra Costa Walnut Creek 22 Comment
  UC588153  Acer negundo var. interior Annetta Carter 1937-3-28 1227 Contra Costa 2 1/2 mi n Moraga (Moraga Valley); , Creek bank, n of Moraga 182 Comment
  JEPS37093  Achillea millefolium W. L. Jepson 1922-5-23 9651 Contra Costa Mt. Diablo Comment
  UC1301055  Achillea millefolium Helen K. Sharsmith 1962-4-18 4942 Contra Costa Crockett-Martinez road above Carquinez Straits; San Francisco Bay Region 60 Comment
  CAS-BOT-BC29885  Achyrachaena mollis L. Kellogg; Brannan 1870-4-20 s.n. Contra Costa Antioch Comment
  CDA25241  Achyrachaena mollis D. G. Kelch, D. A. Weinstein 2008-4-15 08 .047-B Contra Costa Carquinez Strait; S Port Costa along Mckewen Rd. Comment
  UC691544  Achyrachaena mollis Mary L. Bowerman 1931-3-29 627 Contra Costa Cave Point Ridge Comment
  CAS-BOT-BC29890  Achyrachaena mollis E. M. Zeile 1909-5-19 s.n. Contra Costa Regents Park, West Berkeley Comment
  UCD104135  Acmispon glaber G. Thomas Robbins 1959-4-12 3983 Contra Costa About 1/2 mile southwest of junction of Hoffmann Blvd. and S. 25th St., Richmond. 6 Comment
  UCD104491  Acmispon wrangelianus Morris Halperin 1929-4-21 s.n. Contra Costa Moraga Valley. Comment
  CDA36365  Acroptilon repens Chris Denijs 2011-9-14 PDR# 1454138 Contra Costa 4571 Orwood Rd., Brentwood. 0 Comment
  UCD158715  Acroptilon repens James A. Neilson Jr. 1974-8-13 3472 Contra Costa Bradford Island. (Elevation estimated using Google Earth by label maker.) 0 Comment
  UC1127726  Adenostoma fasciculatum R. W. Lundh 1933-2-1 199 Contra Costa Las Trampas Ridge Concord Quad., Las Trampas Ridge Comment
  UC70330  Adenostoma fasciculatum J. B. Davy 1897-1 Contra Costa Moraga Comment
  SBBG21358  Adenostoma fasciculatum var. fasciculatum V. Haraden 1941-7-18 16 Contra Costa NE slope near Nortonville 121 Comment
  SEINET7728119  Adiantum emarginatum C. C. Parry 1883-1 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC65622  Adiantum jordanii D. E. Breedlove 1970-4-18 17432 Contra Costa at the north edge of Lafayette above Laurel Drive 243 Comment
  CDA42502  Adiantum jordanii D. G. Kelch 2005-1-21 5 .006 Contra Costa Carquinez Strait; Crockett. Along railroad tracks in West Valona across from decommissioned sewage treatment plant. Comment
  UC42032  Adiantum jordanii Ivar Tidestrom vi, 1895 Contra Costa canyon near Crockett Comment
  RSA0068494  Adiantum jordanii Katie Gallagher, Nick Jensen 2014-4-26 180 Contra Costa Las Trampas Regional Wilderness. 365 Comment
  CDA19920  Aegilops triuncialis Slate 2002-6-2 PDR P 099580 Contra Costa Northern California; Mt Diablo State Park. 0 Comment
  CHSC22658  Aesculus californica Robert A. Schlising 1965-1-24 2740 Contra Costa North of Briones Reservoir along Hampton Road; 1.1 mi S of Jct with Garcia Ranch Road. Comment
  JEPS40101  Aesculus californica W. L. Jepson 1923-6-10 9984 Contra Costa Mt. Diablo Comment
  UCD128633  Agoseris apargioides Morris Halperin 1929-4-21 s.n. Contra Costa Moraga Valley. Comment
  JEPS111761  Agoseris grandiflora var. grandiflora D. G. Kelch 2005-5-13 05 .258-b Contra Costa Martinez - West: along Vista Road ~ 2.5 kiloms West of Martinez 45 Comment
  CAS-BOT-BC22971  Agoseris heterophylla John Thomas Howell 1933-5-14 11260 Contra Costa Hills east of St. Mary's College Comment
  POM203659  Agoseris heterophylla John T. Howell 1933-5-14 11260 Contra Costa Hills east of St. Mary's college Comment
  UC1795693  Agrostis avenacea Barbara Ertter, Brad Olson 1994-5-7 12748 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  RSA0029681  Agrostis avenacea Barbara Ertter, Tony Morosco 1998-9-18 16425 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, north quarry area [subsequently developed]. 122 Comment
  SEINET10590760  Agrostis avenacea Barbara J. Ertter, B. Olson 1994-5-7 Ertter 12748 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge, edge of San Francisco Bay. Local in puddle on graded flat. Comment
  JEPS100031  Agrostis exarata S. O'Neil 2003-6-24 SEO 41 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  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
  JEPS400  Agrostis hallii W. L. Jepson 1937-7-2 18447 Contra Costa 0.5 mi w Crokcett 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
  CDA962  Agrostis pallens D. G. Kelch 2005-6-14 5 .33 Contra Costa East Bay; San Pablo. North Alvarado Park, south of San Pablo Dam Rd. 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
  RSA0033844  Agrostis stolonifera Barbara Ertter 2000-7-16 17383 Contra Costa Diablo Foothills Regional Park, along Pine Creek between Castle Rock Recreation Area and flood-control checkdam. 106 Comment
  JEPS99493  Agrostis viridis Mary Bowerman 1975-9-14 Contra Costa Mount Diablo, near Chase Pond. Comment
  UC579859  Aira caryophyllea Annetta Carter 1936-4-19 1122 Contra Costa Red Rock San Francisco Bay (e side of island) Comment
  UCD37582  Aira caryophyllea Beecher Crampton 1955-4-11 2471 Contra Costa Contra Costa County, city of Richmond, vacant lot at 42nd Street and Bissell Road. Comment
  UC2028028  Aira caryophyllea var. caryophyllea Barbara Ertter 1997-9-14 15805 Contra Costa West side of Mount Diablo, Dusty Road at north end of Wall Point Ridge. Comment
  UC2028476  Aira caryophyllea var. caryophyllea Barbara Ertter with Richard K. Brummitt 1998-5-6 16105 Contra Costa Point San Pablo west of Richmond, crest of road to yacht harbor Comment
  CAS-BOT-BC445380  Alisma plantago-aquatica Mary L. Bowerman 1933-9-9 2429 Contra Costa Mount Diablo. Frog Pond. 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
  JEPS95266  Allium paniculatum var. paniculatum Doris E. Baltzo 1999-7-20 Contra Costa 2092 Ahneita Drive, Pleasant Hill Comment
  JEPS112498  Allium serra D. G. Kelch 2004-4-30 04 .151 Contra Costa Mt. Wanda - Martinez 180 Comment
  CAS-BOT-BC475534  Allium serra W. H. Brewer 1862-4-25 994 Contra Costa Martinez Comment
  CAS-BOT-BC475536  Allium serra L. R. Abrams 1921-5-15 8052 Contra Costa At Spring 4 1/2 miles from Summit, Mt Diablo Comment
  RSA59637  Allium serra Verne Grant, Alva Grant 1950-5-13 8896 Contra Costa Saddle between N & Meridian peaks, Mt. Diablo. Comment
  UCD138632  Allium serra Laurence S. Jones 1934-4-8 s.n. Contra Costa Mount Diablo. 609 Comment
  SEINET12044784  Allium serratum J. T. Howell 1933-1 11284 Contra Costa E of St. Mary's College Comment
  POM300633  Allium unifolium Mary L. Bowerman 1931-4-19 750 Contra Costa Mitchell Canyon, Mt. Diablo. Comment
  UC1819012  Allium unifolium Barbara Ertter, Mary Bowerman et al. 1995-5-7 14057 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, creek crossing on north-facing slope, edge of woods and open slopes. Comment
  UC691595  Allophyllum gilioides subsp. gilioides Mary L. Bowerman 1935-4-26 2919 Contra Costa Meridian peak summit Mt. Diablo 1158 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
  JEPS58614  Alnus rhombifolia W. L. Jepson 1901-10-12 Contra Costa Mount Diablo Comment
  JEPS58619  Alnus rhombifolia W. L. Jepson 1899-2-26 Contra Costa Wild Cat Creek Berkeley Hills Comment
  JEPS68944  Alnus rhombifolia Edward Lee 1935-2-10 1272 Contra Costa Wildcat Creek Berkeley, Berkeley Hills Comment
  SEINET3151403  Alnus rhombifolia L. S. Rose 1938-10-28 38307 Contra Costa Marsh creek, 6 miles East of Clayton. 152 Comment
  UC1135145  Alnus rhombifolia R. W. Lundh 1932-9-22 170 Contra Costa Sycamore Creek Mt. Diablo Quadrangle 228 Comment
  UC1818942  Alnus rhombifolia Barbara Ertter, Chris Thayer 1995-4-25 13987 Contra Costa Southeast side of Mt. Diablo northeast of Danville; shade of oak forest on Sycamore Creek near junction of path from Knobcone Point Rd. 396 Comment
  UC34816  Alnus rhombifolia W. C. Blasdale 1896-2-29 Contra Costa Clayton Comment
  CAS-BOT-BC170929  Alnus rhombifolia H. E. McMinn 1922-10-17 399 Contra Costa Curry Cannon, Mt. Diablo Comment
  UC2027846  Amaranthus albus Barbara Ertter, Mary Bowerman 1996-11-1 15402 Contra Costa North base of Mount Diablo, near Donner Canyon trailhead at end of Regency Drive. Comment
  UC691934  Amaranthus californicus Mary L. Bowerman 1935-9-13 3336 Contra Costa Hidden Pond Mount Diablo Comment
  CDA7886  Amaranthus deflexus D. G. Kelch, A. G. Murdock 2004-7-9 04 .291-B Contra Costa Carquinez Strait; Crockett; Edwards Creek, immediately below high school. Comment
  RSA537530  Amaranthus deflexus Barbara Ertter, Elizabeth Neese 1988-10-15 7973 Contra Costa West of I-580 in El Cerrito, junction of Central Ave. and Rydin Road Comment
  CDA6724  Ambrosia trifida V. Guise 1980-10-17 Contra Costa Lora Kayfes property, Gateway Road, Bethel Island. 0 Comment
  UC726360  Amsinckia A. A. Heller 1941-3-24 15906 Contra Costa Byron Springs Comment
  CAS-BOT-BC222218  Amsinckia John Thomas Howell 1934-4-8 11812 Contra Costa 7 miles from Clayton on road to Livermore Comment
  CAS-BOT-BC222220  Amsinckia John Thomas Howell 1934-4-8 11827 Contra Costa South of Antioch Comment
  CAS-BOT-BC222227  Amsinckia Alice Eastwood; John Thomas Howell 1936-4-19 2131 Contra Costa Nortonville Comment
  UC78278  Amsinckia grandiflora T. S. Brandegee May 1887 Contra Costa Judsonville Comment
  JEPS24884  Amsinckia grandiflora T. S. Brandegee May, 1887 Contra Costa Judsonville (in the Hills south of Antioch) Comment
  CHSC91870  Amsinckia intermedia Richard R. Halse 1988-2-20 3541 Contra Costa Along State Hwy. 4 near its junction with Balfour Road on the S edge of Brentwood. 23 Comment
  SBBG6220  Amsinckia intermedia J. M. Tucker 1946-3-24 1386 Contra Costa hills between Nortonville and Somersville Comment
  UC1073377  Amsinckia intermedia George B. Rossbach 1955-3-20 457 Contra Costa sw base of Mount Diablo Comment
  UC1178260  Amsinckia intermedia Francia Chisaki 1954-3-25 574 Contra Costa Mount Diablo; Mount Diablo State Park Comment
  UC615270  Amsinckia intermedia Beryl O. Schreiber 1932-3-27 130 Contra Costa near Mountain House Comment
  RSA0090979  Amsinckia intermedia A. A. Heller 1938-4-9 15014 Contra Costa In an orchard near Walnut Creek. Comment
  SD211561  Amsinckia intermedia Barbara Ertter, Jim Jokerst et al 1989-4-5 8130 Contra Costa Alkalai sink West and adjacent to Clifton Court Forebay, circa 15 airmiles Southwest of Stockton. Comment
  UC762762  Amsinckia intermedia R. F. Hoover 1938-4-20 3179 Contra Costa between Resevoir and San Pablo Comment
  CAS-BOT-BC222464  Amsinckia lunaris Joseph P. Tracy 1934-4-30 13196 Contra Costa Near Lafayette 152 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
  UC2012977  Amsinckia lunaris Barbara Ertter with Chris Thayer 1993-5-7 11707 Contra Costa Ca 1/2 mile north of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land east of Tilden Park. Comment
  JEPS25354  Amsinckia lycopsoides Rimo Bacigalupi with Paul C. Hutchison and John Weiler 1959-3-19 6964 Contra Costa 1.9 mi w Byron (at road summit along Camino Diablo) 54 Comment
  UCD119723  Amsinckia lycopsoides R. Bacigalupi; Francia Chisaki 1957-3-27 910 Contra Costa Rolling plain along Somersville road between Borden Highway and Southern Pacific Railway, 0.75 mile west of Antioch. 19 Comment
  UCSB39447  Amsinckia tessellata Fritzke, Sue 1980-3-1 Contra Costa Hills behind Walnut Heights Elementary School, off of Walnut Blvd., 1 mile east of intersection with Walker Rd. 121 Comment
  CHSC75115  Anagallis arvensis Roger Thom 1987-5-26 21 Contra Costa 2800 block of Buena Vista Ave. Walnut Creek. 30 Comment
  JEPS127041  Anagallis arvensis Lowell Ahart, Josephine Guardino 2016-4-19 20784 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
  UC2031455  Anagallis arvensis Barbara Ertter with David Gowen, Mike Park, Chris Thayer et al. 2014-4-12 21711 Contra Costa South tributary of Perkins Canyon at Prospectors Gap Road, Ginochio property on east side of Mount Diablo Comment
  UC2027832  Ancistrocarphus filagineus Barbara Ertter with John Ginochio and Mary Bowerman 2001-5-8 17631 Contra Costa northwest flank of Mount Diablo, Ginochio property north of park boundary on Long Ridge. Comment
  POM169016  Anemopsis californica A. D. E. Elmer 1903-06 4870 Contra Costa Walnut Creek Comment
  UC691885  Angelica californica Mary L. Bowerman 1932-10-16 1631 Contra Costa Mount Diablo, Donner Canyon Trail Mount Diablo; , Donner Canyon Trail Comment
  UC692561  Angelica californica Mary L. Bowerman 1932-5-6 1420 Contra Costa Mount Diablo, Mitchell Canyon Mitchell Canyon; Mount Diablo, Mitchell Canyon 228 Comment
  CHSC75049  Anthemis cotula Roger Thom 1987-5-27 24 Contra Costa 1900 block of Olympic Blvd. (at Newell Ave.), Walnut Creek. 15 Comment
  JEPS111664  Anthemis cotula A. G. Murdock 2004-5-28 302 Contra Costa Hercules - Carbon 50 Comment
  UC1594182  Anthemis cotula Jerry Powell 1992-6-17 1692 Contra Costa Richmond Field Station 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-BC84716  Anthemis cotula Mary L. Bowerman 1930-6-3 228 Contra Costa Mount Diablo. North Road, 1.9 miles from entrance 167 Comment
  CDA29022  Anthriscus caucalis D. G. Kelch 2006-5-7 6 .161 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  CAS-BOT-BC26282  Antirrhinum elmeri A. D. E. Elmer 1903-6-1 4809 Contra Costa Mount Diablo Comment
  SBBG33408  Antirrhinum vexillocalyculatum A. D. E. Elmer -Jun-1903 4809 Contra Costa Mount Diablo Comment
  CAS-BOT-BC27067  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum Adolph Daniel Edward Elmer 1903-6-1 4809 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC447664  Aphanes arvensis Mary L. Bowerman 1931-3-29 620 Contra Costa Mount Diablo, East Cave Point ridge, Comment
  RSA0069383  Aphanes arvensis Katie Gallagher, Nick Jensen 2014-4-26 206 Contra Costa Las Trampas Regional Wilderness. 487 Comment
  UC12043  Aphanes occidentalis Jos. Burtt Davy 1901-4-21 6927 Contra Costa Wildcat Canyon Comment
  UC2062618  Aphanes occidentalis Barbara Ertter with Save Mount Diablo outing 2003-5-8 18163 Contra Costa Mangini property on knoll west of Mount Zion, NW corner of Mount Diablo. Comment
  SEINET3156065  Apiastrum angustifolium T. S. Brandegee sn Contra Costa Mt. Diablo Comment
  UC2027940  Apiastrum angustifolium Barbara Ertter with Tony Morosco and other CNPS members 2001-5-6 17621 Contra Costa Northwest flank of Mount Diablo, trail on west face of Black Point. Comment
  UC692374  Apiastrum angustifolium Mary L. Bowerman 1932-3-27 1145 Contra Costa between next spur to south and Mitchell Rock (Mount Diablo); Mount Diablo Comment
  CDA15262  Apocynum cannabinum G. F. Hrusa, D. Crowe 1998-5-8 14393 Contra Costa Sacramento Delta; Along Antioch-Pittsburg highway adjacent to E end of Dow Chemical property in Pittsburg. Comment
  CDA39735  Apocynum cannabinum D. G. Kelch 2004-7-9 4 .306 Contra Costa Carquinez Strait; Alhambra Creek, Martinez, near Muir gravesite, Arroyo del Hambre. Comment
  UC465564  Aquilegia Milo S. Baker 1904-6-23 Contra Costa near Hurley's; Mt. Diablo Comment
  UC8999  Aquilegia formosa W. H. Brewer 1862-5-23 1156 Contra Costa se area Mount Diablo Comment
Read comments Nov 28 2009
  UC692480  Aralia californica Mary L. Bowerman 1933-6-21 2330 Contra Costa Donner Canyon Mt. Diablo, Donner Canyon 243 Comment
  CAS-BOT-BC410128  Arceuthobium occidentale Howard E. McMinn 317 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC24111  Arctostaphylos auriculata Walter Knight; Irja Knight 1968-2-19 2276 Contra Costa Sandmine ravine in Somersville Comment
  CAS-BOT-BC27223  Arctostaphylos auriculata Alice Eastwood 1903-2-22 s.n. Contra Costa Mt. Diablo Comment
  CDA9744  Arctostaphylos auriculata D. G. Kelch, D. A. Weinstein 1995-3-6 s.n. Contra Costa Rock City. Mt. Diablo. Comment
  JEPS38915  Arctostaphylos auriculata Mary L. Bowerman 1932-2-13 1086 Contra Costa on ridge between main forks of canyon Mount Diablo; , Alamo Canyon Comment
  RSA0036101  Arctostaphylos auriculata Lewis S. Rose 1949-3-6 49004 Contra Costa Mt. Diablo, above Rock City. 518 Comment
  RSA212152  Arctostaphylos auriculata L. S. Rose 1970-4-2 70023 Contra Costa Rock City, Mount Diablo. 426 Comment
  RSA622486  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27597 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments Jan 30 2013
  SBBG21400  Arctostaphylos auriculata V. Haraden 1941-7-18 13 Contra Costa near Nortonville 121 Comment
  SBBG28871  Arctostaphylos auriculata L. S. Rose 1934-2-28 34039 Contra Costa S slope of Mt Diablo, 8 mi NE of Danville Comment
  UC549568  Arctostaphylos auriculata J. E. Adams 1934-3-19 672 Contra Costa Mt. Diablo Comment
  UC614738  Arctostaphylos auriculata Beryl O. Schreiber 1934-2-22 943 Contra Costa Devil's Slide Canyon Mount Diablo Comment
  UC697792  Arctostaphylos auriculata Mary L. Bowerman 1932-9-5 1546 Contra Costa near fire trail which runs s from large spur (on meridian) heading into Sycamore Canyon; Mount Diablo, Inner Black Hills Comment
  UC75346  Arctostaphylos auriculata Alice Eastwood 1903-2-22 3161 Contra Costa Mt. Diablo Comment
Read comments Aug 25 2011
  UC75347  Arctostaphylos auriculata Alice Eastwood 1903-5-31 3161 Contra Costa Mt. Diablo Comment
  UCD50265  Arctostaphylos auriculata Roman Gankin 1968-11-14 1308 Contra Costa Ca. 300 yds. above 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
  CAS-BOT-BC23553  Arctostaphylos crustacea Neil Havlik; Walter Knight 1982-11-12 4549 Contra Costa Briones Regional Park adjacent to russell Tree Farm. 327 Comment
  CAS-BOT-BC23595  Arctostaphylos crustacea Gladys L. Smith 1966-4-9 s.n. Contra Costa Moraga Ridge (Pine Ridge section) Comment
  CAS-BOT-BC23600  Arctostaphylos crustacea Steve Abbors 1980-3-24 s.n. Contra Costa Chamise Trail. Las Trampas Ridge, Las Trampas Regional Wilderness. Comment
  OBI14772  Arctostaphylos glandulosa H. E. McMinn 1923-3-6 875 Contra Costa Sycamore Canon, Mt. Diablo 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-BC24659  Arctostaphylos glauca H. E. McMinn 1922-10-17 411 Contra Costa From Mitchell Canyon, Mt. Diablo. Comment
  JEPS38723  Arctostaphylos glauca W. L. Jepson 1916-11-12 6854 Contra Costa Mitchell Canyon Mt. Diablo Comment
  UC2028040  Arctostaphylos glauca Barbara Ertter 1998-3-7 15929 Contra Costa Southwest side of Mount Diablo, west-most knoll on Fossil Ridge, at end of fire road. Comment
  RSA632818  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27585 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
  SD103747  Arctostaphylos manzanita Walter Knight, Irja Knight 1979-5-31 3376 Contra Costa Morgan Territory Regional Land Bank Comment
Read comments Jul 12 2011
  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
  CDA9746  Arctostaphylos manzanita subsp. laevigata D. G. Kelch, D. A. Weinstein 1995-3-6 s.n. Contra Costa Rock City. Mt. Diablo. Comment
  JEPS38922  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1932-1-19 1074 Contra Costa just over crest of ridge on n-facing slope Mount Diablo, Inner Black Hills Comment
  POM203168  Arctostaphylos manzanita subsp. laevigata L. S. Rose 1934-2-28 34040 Contra Costa 8 miles NE Danville, S slope of Mt. Diablo. Comment
  RSA122398  Arctostaphylos manzanita subsp. laevigata R. C. Wilson 1935-2-26 104 Contra Costa 1 mile SW of Nortonville. 396 Comment
  RSA14514  Arctostaphylos manzanita subsp. laevigata L. S. Rose 1934-2-28 34040 Contra Costa 8 miles NE Danville, S slope of Mt. Diablo. Comment
  UC549604  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-10-6 675 Contra Costa Mt. Diablo Comment
  UC549751  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1935-3-19 688 Contra Costa Mt. Diablo Comment
  UC549758  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-3-19 683 Contra Costa Mt. Diablo Comment
  UC692222  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1930-8-31 443 Contra Costa Dan Cook (Rock City) Canyon Mount Diablo Comment
  UCD51724  Arctostaphylos manzanita subsp. laevigata R. W. Lundh 1932-8-17 130 Contra Costa 1 mile East of Round Valley. 518 Comment
  RSA0034774  Arctostaphylos manzanita subsp. laevigata Lewis S. Rose 1934-2-28 34040 Contra Costa 8 mi. NE Danville. S. slope Mt. Diablo. 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-BC24384  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1932-1-19 1073 Contra Costa Mount Diablo, Inner Black Hills. Comment
  CAS-BOT-BC24386  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1936-8-19 3530 Contra Costa Mount Diablo, Pine Canyon mouth, most northerly west-heading streamlet shown on topographic map (now dry). 167 Comment
  CAS-BOT-BC24394  Arctostaphylos manzanita subsp. manzanita Brandegee 1889-1-1 5 Contra Costa Antioch. Comment
  CAS-BOT-BC24396  Arctostaphylos manzanita subsp. manzanita Walter Knight; Irja Knight; James B. Roof 1967-4-2 2061 Contra Costa Nortonville. Comment
  CAS-BOT-BC42230  Arctostaphylos pallida H. E. McMinn 1925-1-1 s.n. Contra Costa Head of San Leandro Creek Comment
  CAS-BOT-BC42235  Arctostaphylos pallida Walter Knight; Irja Knight 1980-3-16 3714 Contra Costa Sobrante Ridge between Heavenly Ridge Land and Castro Ranch Road. Comment
  UC549440  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1935-10-21 550 Contra Costa Moraga Ridge Comment
  UC549470  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 623 Contra Costa Moraga Ridge Comment
  UC909851  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 635 Contra Costa Moraga Ridge Comment
  UC692179  Argemone Mary L. Bowerman 1932-10-1 1603 Contra Costa Mount Diablo, Mitchell Canyon Mitchell Canyon; Mount Diablo, Mitchell Canyon Comment
  JEPS81964  Argyranthemum foeniculaceum Rimo Bacigalupi and L. R. Heckard 1965-5-11 9070 Contra Costa on strand at n end Brooks Island (sw of Richmond, in San Francisco Bay); San Francisco Bay, n end of Brooks Island Comment
  JEPS100124  Aristolochia californica G. Smick 2003-2-27 GAS 55 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS111635  Aristolochia californica D. G. Kelch 2004-3-5 04 .3 Contra Costa Martinez - Rankin Open Space Rankin Park, Martinez 68 Comment
  SJSU6159  Aristolochia californica C. O. Dudley 1966-5-1 106 Contra Costa Reliez Valley, Briones Hills N of Lafayette 152 Comment
  CAS-BOT-BC17386  Armoracia rusticana Walter Knight; Joanne Dean 1978-8-14 3121 Contra Costa Browns Island. Comment
  CAS-BOT-BC84953  Artemisia californica L. R. Abrams 1910-10-8 4339 Contra Costa Mt. Diablo 609 Comment
  UC1948939  Artemisia californica William J. Ferlatte, L. Maynard Moe 1970-4-27 1264 Contra Costa San Francisco Bay: Red Rock Island Comment
  UCD38888  Artemisia californica Beecher Crampton 1959-10-19 5466 Contra Costa Mt. Diablo State Park. Comment
  JEPS99962  Artemisia douglasiana A. Langston 2003-7-28 AL 74 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1584665  Artemisia douglasiana Jerry Powell 1990-8-29 1592 Contra Costa Antioch National Wildlife Refuge Comment
  JEPS47810  Asclepias californica Frank A. Leach 1918-12-1 Contra Costa hill 1 1/2 mi sw Upper Pine Canyon; Mt. Diablo Comment
  UC2013060  Asclepias fascicularis Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14916 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek Comment
  SBBG93247  Asclepias vestita D. G. Nelson 1937-4-24 520 Contra Costa Marsh Crk Rd, between Byron and Clayton Comment
  CDA34969  Asparagus asparagoides Barbara Ertter 1991-1-21 9715 Contra Costa El Cerrito, in southwest corner of county; northeast corner of Point Isabel Regional Shoreline, along abandoned railroad right-of-way. 0 Comment
  CAS-BOT-BC478832  Asparagus officinalis Walter Knight; Joanne Dean 1978-8-14 3128 Contra Costa Brown's Island Comment
  JEPS79589  Aspidotis californica Edward Lee 1978-12-20 Contra Costa Devil's Elbow trail Mt Diablo 1036 Comment
  CDA1505  Aster chilensis D. G. Kelch 1998-10-13 s.n. Contra Costa Carquinez Strait; Base of Elkhorn Creek, E of Crockett. Comment
  CDA15295  Aster lentus Amy Hiss 1998-10-14 s.n. Contra Costa Sacramento Delta; Marina Fishing Pier at northernmost limit of city of Antioch. Comment
  CAS-BOT-BC180528  Astragalus asymmetricus M. K. Curran 1886-5-1 51 Contra Costa Antioch Comment
  CAS-BOT-BC180575  Astragalus asymmetricus M. K. Curran 1885-5-30 s.n. Contra Costa Marsh Creek, near Mt. Diablo Comment
  POM181432  Astragalus asymmetricus I. L. Wiggins 1930-4-17 4562 Contra Costa Near Mountain House, Altamont Pass. Comment
  CAS-BOT-BC177886  Astragalus didymocarpus var. didymocarpus 1884-5-1 s.n. Contra Costa antioch Comment
  JEPS68949  Astragalus gambelianus Edward Lee 1935-3-10 1278 Contra Costa Kirker Pass, Donovan Rd. (w. watershed of Kirker Creek) Comment
  UCSB3011  Astragalus gambelianus Constance, Lincoln; Sharsmith, Carl; Reed, Howard 1940-4-27 Contra Costa Pine Canyon, base of Mount Diablo 304 Comment
  RSA29070  Astragalus gambelianus Lincoln Constance, Carl. W. Sharsmith 1940-4-27 2572 Contra Costa Pine Canyon, base of Mt Diablo 305 Comment
  SEINET12162892  Astragalus oxyphysus W. Knight, Knight, I. 1982-1 4498 Contra Costa Tilden Botanic Garden, Berkeley, ca originally collected nr Somersville Comment
  CAS-BOT-BC66048  Athyrium filix-femina var. cyclosorum M. Beene 1981-4-11 011 Contra Costa Lafayette Res. eastern side of park ca. 100 m W. from main path Comment
  UC1301000  Athysanus pusillus Helen K. Sharsmith 1963-3-3 5191 Contra Costa e of St. Mary's College (near Moraga, Las Trampas Canyon); San Francisco Bay Region, Las Trampas Canyon 259 Comment
  CAS-BOT-BC17459  Athysanus pusillus Mary L. Bowerman 1931-2-28 525 Contra Costa Mount Diablo. Rock City Ridge near Rock City. 518 Comment
  UC205356  Atriplex argentea var. mohavensis H. M. Hall 1919-11-12 10972 b Contra Costa where road turns from highway to Springs (Byron); Byron Comment
  SEINET9292764  Atriplex cordulata Robert Preston, Muth, David 1993-9-7 634 Contra Costa Briones Valley, ca. 1 mile W of Marsh Creek Reservoir, in overflow channel of stock pond; in unsurveyed section. USGS Antioch South 7.5' quad. With Lotium multiflorum, Hordeum marinum ssp. gussoneanum. Comment
  UCD97337  Atriplex cordulata Robert E. Preston; David Muth 1993-9-3 633 Contra Costa 1500 feet north of Marsh Creek Road, 2.75 miles west of its junction with Vasco Road. 91 Comment
  CAS-BOT-BC168537  Atriplex coronata H. M. Hall 1923-10-2 s.n. Contra Costa Byron Hot Springs Comment
  UCD148250  Atriplex coronata Robert E. Preston 2013-6-14 2912 Contra Costa 3.1 mi WSW of Byron, 0.25 mi E of Kellogg Creek. 66 Comment
  JEPS99040  Atriplex coronata Robert E. Preston & Eva Buxton 1994-8-4 618 Contra Costa 0.9 mi NW Marsh Creek Reservoir. 76 Comment
  CHSC98937  Atriplex coronata var. coronata Samantha Mackey Hillaire 2007-7-17 1243 a Contra Costa Briones Valley, ~0.2 mile west of Marsh Creek Reservoir. 60 Comment
Read comments Jan 22 2009
  SEINET4134956  Atriplex heterosperma Howard C. Stutz 1990-8-17 95340 Contra Costa No. Livermore.; 0 Comment
  POM203039  Atriplex joaquinana J. T. Howell 1934-4-8 11823 Contra Costa South of Antioch, Contra Costa County Comment
  RSA293440  Atriplex joaquinana Reino Alava 1958-6-6 2136 Contra Costa 3 miles south of Byron, between the highway south and the railroad track Comment
  RSA293441  Atriplex joaquinana Reino Alava 1958-6-6 2138 Contra Costa 3 miles south of Byron, between the highway south and the railroad track Comment
  UC1601683  Atriplex joaquinana Katharine Brandegee 1907-5-3 Contra Costa between Antioch Marsh Creek; between Antioch and Marsh Creek Comment
  UC70185  Atriplex joaquinana J. Burtt Davy May 1898 Contra Costa Danville region of Mount Diablo, Danville 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
  JEPS41046  Atriplex leucophylla Rimo Bacigalupi and L. R. Heckard 1965-5-11 9071 Contra Costa on strand at n end Brooks Island (in San Francisco Bay sw of Richmond); San Francisco Bay, sw of Richmond, n end Brooks Island Comment
  JEPS68929  Atriplex prostrata Edward Lee 1934-9-30 1225 Contra Costa Moraga; just se of station Comment
  UC2027887  Atriplex prostrata Barbara Ertter with Chris Thayer 1996-10-25 15361 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park. Comment
  SEINET11263176  Atriplex rosea Barbara Ertter, Chris Thayer 1996-10-25 15367 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
  SEINET12765208  Atriplex triangularis Barbara Ertter, B. Olson; L. L. Lake; Lynne Hosley 1991-10-20 10871 Contra Costa Just W of Antioch marina; along levee at water's edge, accessed from marina.; 0 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
  JEPS75537  Avena barbata P. F. Yorks 1976-4-28 144 Contra Costa on Hampton Rd 1.3 to 1.9 km s Bear Creek Road (n of Briones Reservoir); Hamton Road Natural Reserve Comment
  CDA19824  Avena fatua P. Akers 2002-5-11 s.n.- 1 a Contra Costa Northern California; Mt Diablo Rd. 205 Comment
  CDA20386  Avena fatua P. Akers 2002-5-11 s.n.- 3 d Contra Costa Northern California; Mt Diablo Rd. 205 Comment
  RSA129571  Avena fatua R. W. Lundh 1933-3-25 218 Contra Costa 1 mi. W. & 1/2 N. of Lafayette Acalanes; Concord 213 Comment
  RSA301850  Avena fatua Mary L. Bowerman 1931-5-7 809 Contra Costa North Peak Comment
  SEINET5607235 Image available Avena fatua Rachel Van Noord 1998-1 12 Contra Costa Dinosaur Hill Park, Pleasant Hill Comment
  UCD56084  Avena occidentalis G. Douglas Barbe 1983-5-22 4081 Contra Costa Mount Diablo State Park. 877 Comment
Read comments Nov 19 2009
  UC2027750  Azolla filiculoides Barbara Ertter 1996-11-24 15423 Contra Costa West side of Mount Diablo, Pine Pond along Stage Road in Pine Canyon. Comment
  POM301042  Baccharis douglasii Mary L. Bowerman 1938-9-17 3719 Contra Costa 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
  UC697205  Baccharis glutinosa Mary L. Bowerman 1938-9-17 3719 Contra Costa Willow Spring Comment
  CAS-BOT-BC98611  Baccharis pilularis Walter Knight; I. Knight; S. Rae; B. Doyle; J. T. Howell; E. McClintock 1978-9-5 3208 Contra Costa Browns Island Comment
  SEINET7239588 Image available Baccharis salicifolia Chesnut, Drew 1889-4-16 s.n. Contra Costa Clayton Comment
  UC202943  Baccharis salicifolia subsp. salicifolia Chesnut and Drew 1889-4-17 Contra Costa Clayton Comment
  CHSC23338  Balsamorhiza deltoidea Willis Ball 1975-3-26 511 Contra Costa Contra Loma Regional Park. In area #8. On N facing slope near top of hill ca. 500 yds S of main parking lot ca. 760 yds W of Contra Loma Blvd. 146 Comment
  UC36778  Balsamorhiza deltoidea J. Burtt Davy 1895-4-7 910 Contra Costa Antioch Comment
  CAS-BOT-BC106560  Balsamorhiza deltoidea G. L. Stebbins 1937-5-1 2108 Contra Costa North facing ridge, about 1 mile south of Somersville. 365 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
  JEPS108533  Bellardia trixago Lisa Schultheis with Kevin Hintsa 1995-4-25 70 -95 Contra Costa Mount Diablo. Along connector trail between Pine Canyon and the Brioines/Mount Diablo Trail Comment
  UC103480  Bellardia trixago Mr. Skelton 1901-5-12 Contra Costa Martinez Comment
  POM300991  Bellardia trixago Mary L. Bowerman 1938-5-25 3632 Contra Costa North Road 1.6 miles from North Gate where stream crosses road. 152 Comment
  POM44500  Bellardia trixago C. C. Hall 1911-5-20 8835 Contra Costa Contra Costa County: rounded hills near concord, alt 100m 100 Comment
  UC691754  Bellardia trixago M. L. Bowerman 1938-5-25 3632 Contra Costa 1.6 miles from N gate where stream crosses road N Road 152 Comment
  OBI20542  Berberis nevinii Neil Havlik 1968-1 Contra Costa Comment
  UC697190  Berula erecta Mary L. Bowerman 1932-12-5 1683 Contra Costa n of Boulevard Spring (near North Road, Mount Diablo, Johnny Walker Spring); Mount Diablo, Johnny Walker Spring Comment
  CAS-BOT-BC102086  Bidens frondosa Walter Knight; Joanne Dean 1978-8-14 3157 Contra Costa Browns Island Comment
  JEPS96225  Bidens laevis Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10873 Contra Costa just w Antioch marina (e end of marsh across from marina); Dow Wetlands Preserve Comment
  NY31015  Blennosperma californicum L. S. Rose 1933-3-10 33008 Contra Costa Marsh Creek Comment
  SEINET8734692 Image available Blennosperma californicum Helen K. Sharsmith 1954-1 4409 Contra Costa above old Nortonville Mines, near Kirker Pass road between Clayton and Antioch 305 Comment
  RSA31357  Blennosperma nanum Joseph A. Ewan 1935-3-10 9154 Contra Costa In hills above Nortonville. Comment
  JEPS33983  Blennosperma nanum var. nanum R. F. Hoover 1938-2-21 2750 Contra Costa Byron Hot Springs 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
  UC682126  Blennosperma nanum var. nanum G. L. Stebbins Jr. 1942-2-8 3220 Contra Costa 1 mi e of, on road to Mt. Diablo Danville Comment
  SBBG45059  Blennosperma nanum var. nanum A. Carter 1937-3-28 1225 Contra Costa Marsh Crk Rd, ca. 15 mi E of Concord 152 Comment
  UC1950447  Blennosperma nanum var. nanum Barbara Ertter 1992-3-8 10908 Contra Costa Byron Springs Road 4-5 miles south of junction with J4, near Armstrong Road Comment
  CAS-BOT-BC100339  Blepharizonia plumosa T. S. Brandegee Sept. 1883 s.n. Contra Costa Antioch Comment
  SEINET10570457  Bloomeria aurea William H. Brewer 1862-6-19 Brewer 1291 Contra Costa Geological Survey of California, 1860-67. Pacheco Pass, near Camp 77. Comment
  CAS-BOT-BC15961  Boechera breweri subsp. breweri L. Constance; J. L. Morrison 1938-4-5 2192 Contra Costa Near Mitchell Canyon on west slope of Mount Diablo. 609 Comment
  UC855336  Boechera breweri subsp. breweri Alice Eastwood 1915-5-30 4513 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC15958  Boechera breweri subsp. breweri H. E. McMinn 1922-6-2 83 Contra Costa At summit of Mount Diablo - a little north of summit. Comment
  UC2028066  Boechera breweri subsp. breweri Barbara Ertter, Tony Morosco 1998-4-12 16008 Contra Costa Mount Olympia on north side of Mount Diablo, below false summit on East Trail. Comment
  UCD102381  Boechera breweri subsp. shastaensis Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 900 Comment
  POM32378  Boisduvalia glabella Katherine Brandegee 1905-6-16 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC31330  Bolboschoenus maritimus John Thomas Howell 1978-9-5 53356 Contra Costa Pittsburg Marina. Comment
  UCD140023  Bolboschoenus maritimus subsp. paludosus G. F. Hrusa; D. Crowe 1998-5-8 14366 Contra Costa Sacramento-San Joaquin River Delta. On Dow Chemical property at Pittsburg. 10 Comment
  UC2029013  Bolboschoenus maritimus subsp. paludosus Barbara Ertter, Dan Norris 1999-11-14 16854 a Contra Costa Black Diamond Mines Regional Preserve, Sand Creek on east side Stewartville Trail. Comment
  UC692372  Bowlesia incana Mary L. Bowerman 1933-4-22 1889 Contra Costa Mount Diablo, Curry-Cave Point Trail Mount Diablo; , Curry-Cave Point Trail 426 Comment
  JEPS121001  Brachypodium distachyon D. G. Kelch 05 .333-B Contra Costa San Pablo. North Alvarado Park, south of San Pablo Dam Road. Comment
  UC1126847  Brassica nigra R. W. Lundh 1932-7-13 126 Contra Costa 1 mi e of Chaparral Springs (Mount Diablo Quadrangle); Mount Diablo Quadrangle 457 Comment
  JEPS100010  Brassica rapa G. Smick 2003-2-20 GAS 49 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC34624  Brickellia californica V. King Chesnut 1887-9-11 Contra Costa Mt. Diablo Comment
  UCD32377  Briza minor Beecher Crampton 1950-4-20 518 Contra Costa Contra Costa County, 1 mile north of Richmond, along Santa Fe Railroad. 15 Comment
  SEINET11695838  Bromus berteroanus Unknown 1961-1 T.O. 2483 Contra Costa 0.5 mi NW of Martinez, grown at UC Davis agronomy experimental area Comment
  CHSC75136  Bromus carinatus Roger Thom 1987-4-21 3 Contra Costa 3300 block Johnson Rd. Lafayette. 152 Comment
  UC2032822  Bromus carinatus Doran, Andrew Scott 2012-3-20 692 Contra Costa North end of Brooks Island along ridge overlooking artificial spit, southwest of caretakers residence. Comment
  UCD57881  Bromus carinatus Beecher Crampton 1956-5-14 3393 Contra Costa Just east of old Nortonville. 7 miles southwest of Antioch. Comment
  UCD58299  Bromus carinatus Beecher Crampton 1956-5-14 3402 Contra Costa Southeast of Mt. Diablo. Marsh Creek. 640 Comment
  UC1818862  Bromus carinatus var. carinatus Barbara Ertter, Brad Olson 1994-5-7 12749 Contra Costa Send Pt. Molate Beach Park west of Richmond north of San Rafael Bridge, edge of San Francisco Bay. Intact coastal prairies above bluff just south of park, between road and bay, Comment
  CAS-BOT-BC156066  Bromus diandrus Mary L. Bowerman 1935-4-26 2921 Contra Costa Mount Diablo. Summit. 1158 Comment
  JEPS127239  Bromus diandrus Lowell Ahart, Josephine Guardino 2016-4-19 20790 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Dam, approximately 25 miles (air) southwest to Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  UC692288  Bromus diandrus Mary L. Bowerman 1935-5-1 2935 Contra Costa 2 mi from Entrance (Mount Diablo, West Road = North Road); Mount Diablo, West Road 182 Comment
  UCD84945  Bromus diandrus Chuck Hughes 2010-3-29 217 Contra Costa About 0.7 mile south of Vasco Road. 238 Comment
  CAS-BOT-BC156064  Bromus diandrus Mary L. Bowerman 1935-4-19 2876 Contra Costa Mount Diablo. Road about 7miles from North Gate, ridge west of the power poles, above the road junction. 701 Comment
  UC53679  Bromus hordeaceus H. M. Hall 1901-4-5 1737 Contra Costa San Francisco Bay Region, Mount Diablo Mount Diablo; San Francisco Bay Region, Mount Diablo Comment
  UC697134  Bromus hordeaceus Mary L. Bowerman 1931-4-4 644 Contra Costa Mount Diablo, West Raod, about 1 mi from entrance Mount Diablo; , West Raod Comment
  UCD164654  Bromus hordeaceus Henry House 1995-4-30 1995- 29 Contra Costa Approximately 1 km west of Walnut Blvd, about 0.5 km south of Marsh Creek Road. 60 Comment
  UC60198  Bromus laevipes Jos. Burtt Davy 1900-6-7 6652 Contra Costa Briones Region Comment
  UC691133  Bromus laevipes Mary L. Bowerman 1933-6-20 2324 Contra Costa Mount Diablo, Median Ridge in Donner Canyon Donner Canyon; Mount Diablo, Median Ridge, Donner Canyon 304 Comment
  UC692364  Bromus laevipes Mary L. Bowerman 1935-5-16 2993 Contra Costa Mount Diablo, Russelman Park, just s of the n baundary of section 25 (e of gate) Russelman Park; Mount Diablo, Russelman Park Comment
  CAS-BOT-BC162355  Bromus madritensis Mary L. Bowerman 1935-5-3 2961 Contra Costa Sloan Road. 487 Comment
  UC677561  Bromus madritensis subsp. madritensis P. F. Knowles 1942-1 B 142 Contra Costa Briones Hills Comment
  UC691211  Bromus madritensis subsp. madritensis Mary L. Bowerman 1935-5-16 3012 Contra Costa behind Gabriel-Hinks (Mount Diablo, e side of North Peak); Mount Diablo, North Peak 289 Comment
  UC1024733  Bromus madritensis subsp. rubens Leo Whitney 1935-4-21 3056 Contra Costa Corral Hollow Comment
  UC692342  Bromus madritensis subsp. rubens Mary L. Bowerman 1931-4-18 731 Contra Costa Mount Diablo, Sycamore Canyon Sycamore Canyon; Mount Diablo, Sycamore Canyon 365 Comment
  UC692344  Bromus madritensis subsp. rubens Mary L. Bowerman 1931-5-7 810 Contra Costa Mount Diablo, North Peak North Peak; Mount Diablo, North Peak Comment
  RSA655138  Bromus marginatus Beecher Crampton 1956-5-14 3393 Contra Costa 7 miles southwest of city of Antioch, just east of old mining town of Nortonville. Comment
  SEINET5607271 Image available Bromus rigidus Rachel Van Noord 1998-1 6 Contra Costa Dinosaur Hill Park, Pleasant Hill Comment
  CDA23570  Bromus rubens D. G. Kelch, D. A. Weinstein 2008-4-25 8 .088 Contra Costa Alvarado Park (west end of Wildcat Canyon Park) on north-facing hillside above Hindu temple in mixed scrub/grassland. Comment
Read comments Jan 7 2016
  UC2029187  Bromus sterilis Barbara Ertter 2000-5-14 17013 Contra Costa Donner Basin on north side of Mount Diablo, Falls Trail between Donner Creek and Wild Oat Canyon Comment
  CDA975  Bromus trinii D. G. Kelch 2005-6-14 05 .333-B Contra Costa East Bay; San Pablo. North Alvarado Park, south of San Pablo Dam Rd. Comment
  UCD57736  Calamagrostis rubescens G. L. Stebbins Jr. 1942-8-16 3297 Contra Costa 3 miles north of Berkeley, Wildcat Canyon, opposite army camp. Comment
  CAS-BOT-BC233995  Calandrinia breweri Mary L. Bowerman 1932-4-16 1338 Contra Costa Eagle Point ridge south of 1682 point, Mount Diablo Comment
  UC692311  Calandrinia breweri Mary L. Bowerman 1933-5-3 1971 Contra Costa due s Meridian Peak summit; Mount Diablo 731 Comment
  CAS-BOT-BC438367  Calandrinia ciliata V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley Comment
  CAS-BOT-BC438372  Calandrinia ciliata Mary L. Bowerman 1939-5-2 3741 Contra Costa Mount Diablo. By road to Barbecue Terrace (off South Road) 563 Comment
  CAS-BOT-BC438373  Calandrinia ciliata Mary L. Bowerman 1939-5-2 3741 Contra Costa Mount Diablo. By road to Barbecue Terrace (off South Road) 563 Comment
  JEPS99971  Calandrinia ciliata G. Smick 2003-4-8 GAS 134 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS48655  Calandrinia ciliata Elsa Kraeger 1926-5-7 Contra Costa near Toll Gate (road to Mt. Diablo) Comment
  UC570761  Callitriche marginata H. L. Mason 1932-3-16 6810 Contra Costa At east edge Walnut Creek, along S.P. Railroad track Comment
  CAS-BOT-BC487477  Calochortus albus Robert F. Hoover 1939-4-26 4067 Contra Costa Head of Markley Canyon (west branch) Comment
  RSA0029055  Calochortus argillosus Barbara Ertter, Mary L. Bowerman, Lisa Schultheis 1998-8-21 16395 Contra Costa Southwest base of Mount Diablo, South Gate Road 0.7 mi from park boundary. Comment
  CAS-BOT-BC132502  Calochortus pulchellus L. R. Abrams 1921-5-25 8053 Contra Costa 4 1/2 mi from summit, Mt. Diablo Comment
  UC1134509  Calochortus pulchellus C. M. Belshaw 1936-5-12 2104 Contra Costa 1 mi s Tassajero Rd. summit; Mt. Diablo 304 Comment
Read comments Dec 29 2006
  UC119762  Calochortus pulchellus Carl Purdy 1899-5-15 Contra Costa Mount Diablo Comment
  CAS-BOT-BC132503  Calochortus pulchellus H. M. Hall 1916-5-30 10132 Contra Costa Mt. Diablo, north slopes, near Pine Canyon 365 Comment
  JEPS112510  Calochortus superbus Christopher Thayer 1996-6-7 Contra Costa Oursan Trail above Hampton rd. East Bay Municipal Utility District property Comment
  UC691990  Calochortus umbellatus Mary L. Bowerman 1931-4-18 727 Contra Costa at head of ne fork Sycamore Canyon; Mount Diablo Comment
  CAS-BOT-BC494048  Calochortus venustus L. R. Abrams 1921-5-25 8054 Contra Costa Near Spring 4 1/2 mi from summit mt Diablo Comment
  POM195651  Calycadenia hispida H. M. Hall 1916-8-16 10274 Contra Costa Horse Valley, 9 km south of Antioch Comment
  UC2029105  Calycadenia truncata Barbara Ertter 2000-7-29 17441 Contra Costa Donner Basin on north side of Mount Diablo, ca halfway up Middle Trail. Comment
  UC1794956  Calystegia R. K. Brummitt and B. Ertter 1998-5-6 19794 Contra Costa Point San Pablo, W of Richmond. Comment
  UC691865  Calystegia Mary L. Bowerman 1935-6-1 3115 Contra Costa Meridian in loop of road on ridge s of the summit parking area (Mount Diablo); , Meridian Peak on ridge s of the summit 1097 Comment
  CAS-BOT-BC436385  Calystegia Alice Eastwood 1915-5-30 4441 Contra Costa Mt. Diablo Comment
  SD225761  Calystegia malacophylla subsp. pedicellata R. K. Brummitt, J. Strother & B. Baldwin 1997-5-27 19606 Contra Costa Mt. Diablo, W side, Murchio Gap; 800 Comment
  UC691846  Calystegia malacophylla subsp. pedicellata Mary L. Bowerman 1935-6-8 3126 Contra Costa Meridian Peak Summit , Meridian Peak summit (Mount Diablo) 1170 Comment
  RSA397145  Calystegia malacophylla subsp. pedicellata Anstruther Davidson 1917-07 3251 Contra Costa Mt. Diablo Comment
  UC691845  Calystegia purpurata Mary L. Bowerman 1933-4-26 1918 Contra Costa North Peak ridge ese of the Peak (south face, Mount Diablo); Mount Diablo, North Peak Ridge ese of the peak 609 Comment
  RSA760670  Calystegia purpurata William J. Ferlatte, L. Maynard Moe 1970-4-27 1236 Contra Costa San Francisco Bay, Red Rock Island. Comment
  RSA0033851  Calystegia subacaulis Barbara Ertter 1999-7-17 16760 Contra Costa El Cerrito, west side of Arlington Ave. in small triangle of land between Moeser Ln. and Terrace Dr. Comment
  RSA710249  Calystegia subacaulis R. K. Brummitt, Barbara Ertter, N. A. Brummitt 1998-5-6 19788 Contra Costa Mt. Diablo. NE side, Donner Track. 400 Comment
  RSA710325  Calystegia subacaulis R. K. Brummitt, Barbara Ertter, N. A. Brummitt 1998-5-13 19841 Contra Costa S of Antioch, Black Diamond Mine Regional Park. 400 Comment
  UC2062681  Calystegia subacaulis Barbara Ertter with Tony Morosco 1998-7-11 16368 Contra Costa North base of Mount Diablo State Park, Coulter Pine Trail just east of Mitchell Rock Trail. Comment
  UC691849  Calystegia subacaulis subsp. subacaulis Mary L. Bowerman 1931-4-11 709 Contra Costa toward mouth Pine Canyon (Mount Diablo); , Pine Canyon toward mouth Comment
  UC1301105  Camissonia contorta Helen K. Sharsmith 1963-4-7 5293 Contra Costa abandoned orchard near Oakley (s of Antioch); San Francisco Bay Region 15 Comment
  JEPS107069  Camissonia intermedia Barbara Ertter, Chris Thayer 1995-4-25 13989 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Devil's Slide area of Sycamore Canyon, roadside through chaparral zone. 304 Comment
  RSA186560  Camissonia micrantha Peter H. Raven 1963-3-29 18143 Contra Costa About 1 mile south of Oakley on State Highway 4 at junction of Brownstone Road Comment
  RSA41307  Camissonia ovata Robert F. Hoover 1938-2-21 2755 Contra Costa Point Richmond. Comment
  UC35344  Camissoniopsis micrantha Chesnut and Drew 1889-4-18 Contra Costa Sand Hills Antioch Comment
  UC2070451  Camissoniopsis micrantha Barbara Ertter with Dan Norris 2001-4-8 17600 Contra Costa Lime Ridge Open Space east of Walnut Creek. Comment
  CAS-BOT-BC266437  Campanula exigua Alice Eastwood 1921-6-11 s.n. Contra Costa Mount Diablo summit Comment
  UC691518  Campanula exigua Mary L. Bowerman 1935-5-25 3078 Contra Costa rock slide in rock gorge; Mount Diablo, Rhine Canyon 914 Comment
  UC1051189  Campanula persicifolia var. alba N. Floy Bracelin 1944-6-19 2737 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1055872  Campanula poscharskyana N. Floy Bracelin 1945-6-10 2854 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1789147  Campsis radicans Barbara Ertter 1998-5-10 16370 Contra Costa southeast edge of Antioch Marina. Comment
  UC1126864  Capsella bursa-pastoris R. C. Wilson 1935-3-19 140 Contra Costa 2 mi nw of Wall Point 518 Comment
  CAS-BOT-BC37392  Cardamine californica John Thomas Howell 1931-3-10 5757 Contra Costa East side of Mount Diablo 7 miles from Clayton. Comment
  UC1126894  Cardamine californica R. C. Wilson 1935-3-27 146 Contra Costa Oyster Pt. Mt. Diablo Quad., Oyster Pt. Comment
  UC1126899  Cardamine californica R. C. Wilson 1935-3-19 142 Contra Costa 1 mi se Wall Pt.; Mt. Diablo Quad. 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
  RSA21594  Cardamine californica var. integrifolia C. B. Wolf 1937-3-28 8319 Contra Costa 2 miles south of Pinole on San Pablo road 30 Comment
  CDA8345  Cardamine flexuosa D. G. Kelch, A. G. Murdock 2003-3-21 03 .065-B Contra Costa Carquinez Strait Region; Martinez; West: Ozol Rock and Scenic Drive. 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
  JEPS111859  Cardamine oligosperma D. G. Kelch 2004-3-5 04 .8 Contra Costa Sky Ranch Dutra Fire Road. Franklin Canyon 250 Comment
  UC1561256  Cardamine oligosperma Barbara Ertter with John Little 1989-4-2 8112 Contra Costa Hillside Park , Hillside Park (El Cerrito) Comment
  UC2028048  Cardamine oligosperma Barbara Ertter 1998-2-15 15914 Contra Costa Shell Ridge Open Space on northwest base of Mount Diablo, outcrops on north side of Joaquin Ridge south of Indian Creek, +/- wooded. Comment
  UC2029039  Cardamine oligosperma Barbara Ertter 2000-3-19 16897 Contra Costa Southwest side of Mount Diablo, Stage Road along Pine Creek, ca 1/2 mile above Pine Pond. Comment
  CDA40557  Cardaria chalepensis V. Guise & B. Slate 2014-4-8 PDR# 070 P06223871 Contra Costa Clayton; 11501 Marsh Creek Road, 0.5 mile east of Morgan Territory Road, East Bay Regional Park District property. 0 Comment
  CDA19118  Cardaria chalepensis R. M. Case 2001-5-1 PDR P 088777 Contra Costa Solano Ave., Concord. 0 Comment
  CDA19196  Cardaria draba R. Fonseca 2001-5-16 PDR P 088201 Contra Costa Suisun Bay Region; Franklin Canyon Rd., Martinez. 115 Comment
  CAS-BOT-BC281736  Carduus pycnocephalus Paul F. Covel 1938-6-26 s.n. Contra Costa Las Trampas Canyon, behind St. Mary's Comment
  JEPS59104  Carduus pycnocephalus subsp. pycnocephalus W. L. Jepson 1943-5-27 20840 Contra Costa near Black Hills; Mt. Diablo Comment
  CDA15244  Carduus tenuiflorus G. F. Hrusa, D. Crowe 1998-5-8 14375 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Comment
  CDA9484  Carduus tenuiflorus D. G. Kelch, Abigail Moore, Michael Park 2007-5-1 7 .209 Contra Costa Byron Airport. Comment
  JEPS97625  Carduus tenuiflorus Annetta M. Carter, Florence Dickson 1939-5-28 1437 Contra Costa El Cerrito. 7 Comment
  CAS-BOT-BC281805  Carduus tenuiflorus John Thomas Howell 1933-5-21 11323 Contra Costa San Pablo Comment
  JEPS25239  Carex barbarae G. Thomas Robbins 1959-8-1 4116 Contra Costa Las Trampas Creek, about 1 1/2 miles SE of St. Mary's College 182 Comment
  POM300641  Carex barbarae Mary L. Bowerman 1935-9-13 3344 Contra Costa Mount Diablo: Frog Pond, at head of Frog Pond Spring. Comment
  RSA153458  Carex barbarae G. Thomas Robbins 1959-5-16 4008 Contra Costa Just north of Pt. Orient, Potrero Hills, overlooking San Francisco Bay, Richmond. Comment
  CAS-BOT-BC34931  Carex densa Mary L. Bowerman 1938-6-14 3682 Contra Costa Mount Diablo. Willow Spring (near road). 701 Comment
  POM300640  Carex dudleyi Mary L. Bowerman 1935-5-16 3001 Contra Costa Mt. Diablo: Russelman Park road at Gregory Ranch junction. 290 Comment
  UC2028415  Carex globosa Barbara Ertter with Alan Whittemore, Joanne Kerbavaz, et al. 2001-5-22 17650 Contra Costa South side Mount Diablo, headwaters of West Branch Alamo Creek ESE of Knobcone Point, below powerline at end of Knobcone Point Road Comment
  UC2028541  Carex globosa Barbara Ertter 1998-3-7 15927 Contra Costa Southwest side of Mount Diablo, west end Fossil Ridge Trail. Comment
  UC2070509  Carex globosa Barbara Ertter with Dan Norris 2001-4-8 17594 Contra Costa Lime Ridge Open Space east of Walnut Creek. Comment
  JEPS22098  Carex praegracilis G. Thomas Robbins 1958-7-19 3908 Contra Costa at the edge of a small lagoon about 3/4 mi s Pt. San Pablo; San Francisco Bay, Richmond, Potrero San Pablo, Pt. Orient Comment
  UC823230  Carex serratodens Lewis S. Rose 1935-5-16 35163 Contra Costa Mt. Diablo Comment
  UC1818878  Carex serratodens Barbara Ertter, Kristin Ertter 1995-7-11 14487 Contra Costa Partial shade of willows, mudflat around Pine Pond inlet. Comment
  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
  CAS-BOT-BC116916  Carex subbracteata var. subbracteata G. Thomas Robbins 1959-4-18 3984 Contra Costa Overlooking San Pablo Bay, ca 1/2 mi E of Pt. San Pablo, Richmond. 7 Comment
  UC1096  Carex tumulicola Jos. Burtt Davy 1897-4-17 Contra Costa Point Isabel Comment
  UCR198216  Carex tumulicola Dean Kelch 2006-5-5 06 .131 Contra Costa San Francisco Bay, East Bay, Wildcat Canyon Regional Park, near Wildcat Canyon Road terminus 122 Comment
  JEPS119399  Carex tumulicola J. Greenhouse with A. Doran, D. Kelch, H. Bartosh, J. Game, et al. 2012-3-20 5142 Contra Costa Brooks Island Comment
  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
  LA209091  Castilleja affinis Mrs. H. P. Bracelin; 1933-6-10 768 Contra Costa Near crest of hills N of Berkeley above Kensington Comment
  JEPS75506  Castilleja affinis subsp. affinis P. F. Yorks 1974-5-19 161 Contra Costa ca 1.9 km s Bear Creek Rd on Hampton Rd in Hampton Rd Natural Reserve (n of Briones Reservoir) 200 Comment
  UC1039781  Castilleja affinis subsp. affinis H. L. Mason 1928-4-29 4438 Contra Costa Mount Diablo Comment
  UC26404  Castilleja affinis subsp. affinis W. H. Brewer 1862-5-15 1093 Contra Costa Kirker Pass Comment
  UC27154  Castilleja ambigua subsp. ambigua J. Burtt Davy 1900-3-24 6523 Contra Costa Pt. Richmond Comment
  UC27158  Castilleja ambigua subsp. ambigua Jos. Burtt Davy 1900-6-7 6666 Contra Costa Martinez Comment
  HSC101960  Castilleja applegatei subsp. martinii Nikolaus Gillen, Michelle Bihler 2014-3-20 12 Contra Costa Mount Diablo State Park. Eagle Peak Trail. 649 Comment
  JEPS70758  Castilleja densiflora subsp. densiflora L. R. Heckard 1971-4-22 2492 Contra Costa near Pinole (near U.S. Hwy 40 crossing, along railroad grade) Comment
  UC1481545  Castilleja densiflora subsp. densiflora Neil Havlik 1980-5-14 917 Contra Costa e side Pt. Pinole Regional Shoreline Comment
  UC2070538  Castilleja densiflora subsp. densiflora Barbara Ertter with Richard K. Brummitt 1998-5-6 16107 Contra Costa Point San Pablo west of Richmond, crest of road to yacht harbor. Comment
  JEPS16805  Castilleja exserta subsp. exserta Rimo Bacigalupi with G. Thomas Robbins 1955-5-4 4983 Contra Costa 1.25 mi e Antioch (near the San Joaquin River) 9 Comment
  JEPS17083  Castilleja exserta subsp. latifolia Rimo Bacigalupi with Keith Harrison and G. T. Robbins 1955-5-13 5064 Contra Costa opposite El Cerrito (just to the w of Arlington Avenue and opposite Mira Vista Country Club); Berkeley Hills 198 Comment
  CDA41397  Castilleja rubicundula subsp. lithospermoides A. G. Murdock 2003-6-24 114 Contra Costa Carquinez Strait; Near upper trail on north side of Mount Wanda, Martinez. Comment
  JEPS99573  Castilleja rubicundula subsp. lithospermoides Mary L. Bowerman 1978-5-24 Contra Costa Mount Diablo. Donner Canyon, west side trail of Hetherington Loop 2 Comment
  UC27222  Castilleja rubicundula subsp. lithospermoides W. H. Brewer 1862-5-20 1132 Contra Costa hills ne Mt. Diablo Comment
  UC691574  Castilleja rubicundula subsp. lithospermoides Mary L. Bowerman 1933-5-11 2081 Contra Costa ridge towards w end Inner Black Hills (on s side); Mount Diablo Comment
  CDA1111  Castilleja wightii A. G. Murdock, D. Kelch 2003-6-24 116 Contra Costa Carquinez Strait; Vaca Canyon; Alhambra Valley Rd. Comment
  CAS-BOT-BC41015  Caulanthus flavescens Mary L. Bowerman 1935-4-22 2879 Contra Costa Mount Diablo. North Road 2 miles from North Gate, just west of chaparral. 213 Comment
  POM300720  Ceanothus cuneatus Mary L. Bowerman 1932-9-3 1531 Contra Costa Muir Area, burn (1931) Mt. Diablo Comment
  UCD111741  Ceanothus cuneatus W. Ebeling 1929-3-19 s.n. Contra Costa Mount Diablo. Comment
  UCD112079  Ceanothus cuneatus M. Wiesendanger 1926-6-1 1532 Contra Costa Mt. Diablo. Comment
  UC18269  Ceanothus cuneatus var. cuneatus State Survey 1862-5-7 1062 Contra Costa summit of Mt. Diablo Comment
  UC692588  Ceanothus oliganthus var. sorediatus Mary L. Bowerman 1935-5-30 3084 Contra Costa By Donner Canyon stream 161 Comment
  HSC18334  Ceanothus thyrsiflorus D. A. Shally 1965-4-18 34 Contra Costa Canyon, 1.5 mi. NE of Canyon Store on 'fire trail Comment
  JEPS111720  Centaurea calcitrapa D. G. Kelch 2004-6-19 04 .281 Contra Costa Selby Along railroad tracks west of Carquinez Bridge Crockett (Valona) 20 Comment
  CDA29161  Centaurea calcitrapa Deviney 2009-6-1 s.n. Contra Costa Martinez. McEwen Road. 0 Comment
  UC2013017  Centaurea calcitrapa Barbara Ertter with Laura Fujii 1990-7-21 9400 Contra Costa Briones Regional Park, Briones Hills W of Pleasant Hill, weedy field along Homestead Valley trail. Comment
  JEPS99540  Centaurea melitensis Mary L. Bowerman 1995-6-4 Contra Costa Mount Diablo, North Gate Rd. Comment
  JEPS99521  Centaurea solstitialis Mary L. Bowerman 1995-6-4 Contra Costa Mount Diablo. North Gate Road. Comment
  UC691371  Centaurea solstitialis Mary L. Bowerman 1938-10-10 3725 Contra Costa 3 mi below junction South Road; Mount Diablo 624 Comment
  OBI16865  Centaurea solstitialis Robert F. Hoover 1966-8-31 9946 Contra Costa Jctn of Tassajara and Freitas Rd, E of Danville Comment
  CDA38378  Centaurium tenuiflorum D. G. Kelch 2005-6-24 5 .388 Contra Costa Carquinez Strait Region; Franklin Canyon at McEwen Road. Comment
  JEPS88689  Centromadia fitchii John Thomas Howell 30904 Contra Costa near Turtle Rock; Mt. Diablo 259 Comment
  UC615580  Centromadia fitchii Beryl O. Schreiber 1933-10-5 938 Contra Costa road to Mt. Diablo 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
  CAS-BOT-BC288875  Centromadia parryi subsp. congdonii R. F. Hoover 1966-8-31 9943 Contra Costa Junction of Tassajara and Freitas Rds, E of Danville Comment
  UCD14671  Centromadia pungens Mick Canaveri 1997-4-1 s.n. Contra Costa near Brentwood. Comment
  UC30957  Centromadia pungens subsp. pungens Jos. Burtt Davy 1900-6-7 6661 Contra Costa between Martinez and Pacheco Comment
  UC473441  Centromadia pungens subsp. pungens John Thomas Howell 1930-9-28 5489 Contra Costa 2 mi from Concord (on road to Walnut Creek) Comment
  UC523551  Centromadia pungens subsp. pungens David D. Keck 1933-11-2 2613 Contra Costa 3 mi s Martinez (on road to Pacheco) Comment
  UC912272  Centromadia pungens subsp. pungens H. L. Mason 1929-9-21 5438 Contra Costa Marsh Creek Road Comment
  CAS-BOT-BC279184  Centromadia pungens subsp. pungens H. M. Hall 1930-8-7 12847 Contra Costa Byron Hot Springs Comment
  CAS-BOT-BC279186  Centromadia pungens subsp. pungens David D. Keck 1932-7-7 1736 Contra Costa Just east of Nichols Comment
  JEPS35033  Centromadia pungens subsp. pungens W. L. Jepson 1896-5-31 Contra Costa Wild Cat Creek Comment
  UC89012  Centromadia pungens subsp. pungens Mrs. K. Curran May 1883 Contra Costa Babbs Landing Comment
  JEPS111075  Centunculus minimus Lee Echols 2003-4-15 s.n. Contra Costa S of Lark Drive and N of EPA Building, within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond 15 Comment
  UC1039525  Cephalanthus occidentalis var. californicus H. L. Mason 1929-9-21 5447 Contra Costa 1 mi from Borden Highway junction with road to Antioch Comment
  UC1606353  Cephalanthus occidentalis var. californicus Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, and Amy Hiss 1991-8-18 10692 Contra Costa n of Pittsburg (Browns Island, near confluence of Sacramento River and San Joaquin River, opposite Pittsburg Marina); Browns Island Comment
  UC2027966  Cerastium fontanum subsp. vulgare Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15672 Contra Costa Martinez Regional Shoreline, south edge of Carquinez Strait. Comment
  CAS-BOT-BC137007  Cercocarpus betuloides var. betuloides H. L. Dale 1927-3-1 s.n. Contra Costa Mt. Diablo Comment
  UC691100  Cercocarpus betuloides var. betuloides Mary L. Bowerman 1931-6-4 923 Contra Costa Summit of Meridian Peak, Mount Diablo Meridian Peak; Mount Diablo, Meridian Peak Comment
  UC34726  Chaenactis glabriuscula var. glabriuscula Chesnut and Drew Contra Costa Summerville Comment
  POM54137  Chaenactis glabriuscula var. megacephala C. F. Baker 1903-4-27 2940 Contra Costa Antioch Comment
  JEPS106990  Cheilanthes covillei J. Greenhouse with Kevin Hintsa 2004-4-5 5085 Contra Costa Mt. Diablo, Fire Interpretive Trail, Devil's Pulpit 1085 Comment
  CDA15274  Chenopodium album G. F. Hrusa, D. Crowe, R. York 1998-7-17 14711 Contra Costa Sacramento Delta; E end of Dow Chemical property in Pittsburg. Comment
  UC630416  Chenopodium berlandieri Paule Guiget and Annetta Carter 1939-8-13 1453 Contra Costa Treat Ave. se Concord 53 Comment
  CAS-BOT-BC497665  Chlorogalum pomeridianum Alice Eastwood 1927-5-19 11434 Contra Costa Byron Springs Comment
  JEPS61570  Chlorogalum pomeridianum var. pomeridianum Edw. L. Greene 1889-5-23 Contra Costa Byron Springs Comment
  JEPS75512  Chlorogalum pomeridianum var. pomeridianum P. F. Yorks 1975-6-29 460 Contra Costa n. Briones Reservoir (ca. 1.5 km. s. of Bear Creek Rd. on Hampton Rd. in Hampton Rd. Natural Reserve); Hampton Rd. Natural Reserve 200 Comment
  CAS-BOT-BC237992  Chloropyron molle subsp. molle Walter Knight; Neil Havlik 1979-10-7 3415 Contra Costa Point Pinole Regional Shoreline Comment
  UC692212  Chorizanthe membranacea Mary L. Bowerman 1931-5-7 803 Contra Costa Mount Diablo just below crest s side North Peak Ridge; Mount Diablo, North Peak ridge Comment
  UCD99773  Chorizanthe membranacea P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  CAS-BOT-BC252677  Chorizanthe membranacea M. K. Curran 1884-1-1 s.n. Contra Costa Unspecified Comment
  SD8106  Chorizanthe uniaristata Kate Curran June 1884 Contra Costa Antioch Comment
  UC691378  Cirsium cymosum var. cymosum Mary L. Bowerman 1935-5-22 3041 a Contra Costa Eagle Point Ridge, canyon at n e of which heads into saddle w of Twin Peaks Mount Diablo 304 Comment
  UC691388  Cirsium douglasii var. douglasii Mary L. Bowerman 1933-8-2 2396 Contra Costa Maple Spring (by west road) Mount Diablo Comment
  CAS-BOT-BC279963  Cirsium douglasii var. douglasii Mary L. Bowerman 1932-11-26 1675 Contra Costa Mount Diablo. Maple Spring (west road) Comment
  UC1607628  Cirsium occidentale var. venustum Barbara Ertter, Lynne Hosley 1992-8-29 11265 Contra Costa E of Mount Diablo (Prairie Falcon trail); Morgan Territory Regional Preserve Comment
  UC30817  Cirsium occidentale var. venustum J. Burtt Davy 1893-5-13 211 Contra Costa Claremont Canyon to Fish Ranch fide fieldbook Comment
  UC1119194  Cirsium vulgare H. S. Yates 1934-9-2 4077 Contra Costa Wildcat Creek Concord Quad., Wildcat Creek 304 Comment
  JEPS107121  Clarkia affinis Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14224 Contra Costa Mt. Diablo, southeast of Walnut Creek, north of Curry Point 518 Comment
  UC1122354  Clarkia affinis C. M. Belshaw 1936-5-13 2114 Contra Costa 3.7 mi ene Tassajero (plot 31); Mt. Diablo Quadrangle Comment
  UC1122359  Clarkia affinis C. M. Belshaw 1936-5-9 2075 Contra Costa 2 1/4 mi e Clayton (plot 10); Mt. Diablo Quadrangle Comment
  UC1018328  Clarkia affinis H. Lewis and C. Epling 1947-5-2 196 Contra Costa 1 mi w Curry Creek Park Road (Marsh Creek Road) Comment
  UC2028318  Clarkia affinis Barbara Ertter, Susan D'Alcamo 1998-6-12 16159 Contra Costa North Gate Road on west flank of Mount Diablo, ca 1/2 mile below upper Turtle Rock Ranch buildings. Comment
  JEPS43663  Clarkia biloba W. L. Jepson 1918-6-3 7585 Contra Costa Donner Canyon Mt. 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
  CAS-BOT-BC163609  Clarkia biloba subsp. biloba Mary L. Bowerman 1935-6-15 3139 Contra Costa Eagle Point ridge below Ransom Point 822 Comment
  POM153229  Clarkia biloba subsp. biloba C. L. Hitchcock 1928-6-5 15 Contra Costa Between Port Costa and Crockett, 1 mile west of Port Costa. 5 Comment
  POM301856  Clarkia biloba subsp. biloba Mary L. Bowerman 1935-6-15 3139 Contra Costa Mount Diablo: Eagle Point Ridge below Ransom Point 823 Comment
  CAS-BOT-BC164157  Clarkia concinna A. D. E. Elmer 1903-5-1 4336 Contra Costa Mount Diablo Comment
  JEPS43615  Clarkia concinna subsp. concinna W. L. Jepson 1918-6-3 7572 Contra Costa Donner Canyon, Mt. Diablo Comment
  POM32521  Clarkia concinna subsp. concinna A. D. E. Elmer 1903-05 4336 Contra Costa Mount Diablo. Comment
  UCD164886  Clarkia purpurea Henry House 1995-4-30 1995- 9 Contra Costa About 1 km west of Walnut Blvd., ca. 0.5 km south Marsh Creek Rd. 60 Comment
  UC1122404  Clarkia purpurea subsp. quadrivulnera C. M. Belshaw 1936-5-9 2077 Contra Costa 1 1/2 mi e Mulligan Hill (near plot 13); Mt. Diablo Quadrangle Comment
  CDA9193  Clarkia purpurea subsp. quadrivulnera Christopher Thayer 1995-5-2 s.n. Contra Costa Carquinez Strait; Carquinez Scenic Dr near Ozol entrance gate. 0 Comment
  UCD104921  Clarkia purpurea subsp. quadrivulnera Jennifer Davies 1982-4-11 3 Contra Costa 1 mile NW of South Checking Station on South Gate Road, Mt. Diablo. 487 Comment
  JEPS75480  Clarkia rubicunda P. F. Yorks 1975-7-18 473 Contra Costa n of Briones Reservoir (ca 1.9-2.0 km s of Bear Creek Road on Hampton Road in Hampton Road Natural Reserve); Hampton Road Natural Reserve Comment
  JEPS75481  Clarkia unguiculata P. F. Yorks 1974-6-16 175 Contra Costa 1.9 km s Bear Creek Road (on Hampton Road, n of Briones Reservoir); Hampton Road Natural Reserve Comment
  POM181154  Clarkia unguiculata J. T. Howell 1931-5-12 6481 Contra Costa Mt. Diablo. Comment
  UC1586096  Clarkia unguiculata Barbara Ertter with Travis Columbus 1990-6-10 9105 Contra Costa w Pleasant Hill (hillside above junction of Spengler and Blue Oak trail, ne corner of park); Briones Regional Park, Briones Hills 274 Comment
  UC765869  Clarkia unguiculata R. F. Hoover 1937-5-14 2110 Contra Costa Antioch sand-dunes Comment
  CAS-BOT-BC165454  Clarkia unguiculata Paul F. Covel 1936-5-17 259 Contra Costa Ford Canyon, s-w base of Mt Diablo Comment
  CDA33794  Claytonia exigua D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .111 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  CAS-BOT-BC439172  Claytonia exigua subsp. exigua L. R. Abrams 1921-5-25 8023 Contra Costa Summit, Mt Diablo Comment
  SBBG69731  Claytonia exigua subsp. exigua unknown 1895-1 Contra Costa Mt Diablo Comment
  UC692541  Claytonia exigua subsp. exigua Mary L. Bowerman 1933-4-15 1876 Contra Costa s of (canyon s, basin a short distance below the spring) Arroyo del Cerro; Mount Diablo Comment
  UC692548  Claytonia exigua subsp. exigua Mary L. Bowerman 1935-3-16 2732 Contra Costa Peach Tree Springs Road Mount Diablo (e fork of canyon) 228 Comment
  UC7854  Claytonia exigua subsp. exigua Maclean Mar 1875 Contra Costa Mt. Diablo Comment
  POM300714  Claytonia exigua subsp. exigua Mary L. Bowerman 1932-3-12 1110 Contra Costa Alamo Canyon; East-facing bank fifteen ft. above the stream. 351 Comment
  CAS-BOT-BC439437  Claytonia parviflora subsp. parviflora Mary L. Bowerman 1932-3-12 1111 Contra Costa Mount Diablo. Alamo Canyon 350 Comment
  UC1745428  Claytonia parviflora subsp. parviflora Annetta M. Carter, Leo Bowerman 1935-6-1 870 Contra Costa Mt. Diablo. Main ridge running W from peak. 975 Comment
  UC1795876  Claytonia parviflora subsp. parviflora Barbara Ertter, Brad Olson, Diane Lake 1996-4-14 14590 Contra Costa North Peak of Mt. Diablo; open rocky flats. 1097 Comment
  RSA469285  Claytonia perfoliata H. de Forest 1930-4-6 s.n. Contra Costa [Unspecified] Comment
  CAS-BOT-BC443683  Claytonia perfoliata subsp. perfoliata Walter Knight 1965-3-1 904 Contra Costa Antioch dunes Comment
  JEPS99970  Claytonia perfoliata subsp. perfoliata S. O'Neil 2003-2-18 SEO 5 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC692085  Clematis lasiantha Mary L. Bowerman 1930-6-7 272 Contra Costa summit Mt. Diablo Comment
  UC1050307 Image available Clerodendrum bungei N. Floy Bracelin 1941-8-24 1592 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC903181  Collinsia bartsiifolia var. bartsiifolia Ethel Crum 1936-4-5 1744 Contra Costa 2 mi w Byron; South Coast Ranges 45 Comment
  JEPS108350  Collinsia sparsiflora David Gowen, Mike Parks 2005-3-30 219 Contra Costa Mt. Diablo State Park. East facing slope at base of Alamo Canyon. 350 Comment
  JEPS3891  Collinsia sparsiflora var. collina Lauramay Tinsley 1929-3-27 Contra Costa Mount Diablo Comment
  UC1301187  Collinsia sparsiflora var. collina Helen K. Sharsmith 1963-3-3 5192 a Contra Costa near Moraga (Las Trampas Canyon E of St. Mary's College); Las Trampas Canyon 259 Comment
  UC26642  Collinsia sparsiflora var. collina State Survey Contra Costa Mount Diablo Comment
  UC691584  Collinsia sparsiflora var. collina Mary L. Bowerman 1932-3-12 1112 Contra Costa Alamo Canyon , Alamo Canyon (Mount Diablo) 365 Comment
  UC1196815  Collinsia sparsiflora var. sparsiflora J. P. Tracy 1900-3-24 627 Contra Costa near Point Richmond; Region about San Francisco Bay 3 Comment
  RSA138305  Collinsia tinctoria Volney Rattan 1886-06 s.n. Contra Costa Mount Diablo Comment
  JEPS103103  Collomia diversifolia Mary L. Bowerman 1975-6-7 Contra Costa E of Murchio Gap, on and near fire road Mount Diablo Comment
  CDA3510  Consolida ambigua O. Moss 1970-6-3 Contra Costa Empire Mine Road, Brentwood. 0 Comment
  CHSC75080  Convolvulus arvensis Roger Thom 1987-5-13 8 Contra Costa Calif. State University Hayward's Contra Costa Campus. 3100 Oak Park Blvd. Pleasant Hill. 30 Comment
  JEPS111678  Conyza bonariensis D. G. Kelch 2003-8-13 03 .119 Contra Costa Martinez - Train Station 2 Comment
  UC2027732  Conyza bonariensis Barbara Ertter 1997-2-16 15462 Contra Costa Shell Ridge Open Space on west flank of Mount Diablo, Deer Lake dam. Comment
  UC2027933  Conyza canadensis Barbara Ertter with Chris Thayer 1996-10-25 15383 Contra Costa West side of Mount Diablo, North Gate Road 3 road miles below Junction near Mineral Spring. Comment
  UC1005958  Coprosma baueri N. Floy Bracelin 1942-5-10 2071 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS83160  Cordylanthus mollis subsp. mollis Jim Parker 1985-6-26 Contra Costa along slough just n BM 7 Hastings (s of Suisun Bay, between Martinez (to w) and Port Chicago); Concord Naval Weapons Station, Hastings Slough Comment
  JEPS55940  Cordylanthus nidularius T. I. Chuang and L. R. Heckard, R. Bacigalupi 1968-6-27 6436 Contra Costa 3/4 mi ne of Deer Flat (ne flank of Bald Ridge, Mount Diablo); Mount Diablo, Bald Ridge 670 Comment
  NY68295  Cordylanthus nidularius J. T. Howell 1942-7-19 17044 Contra Costa Near of Deer Flat, Mt. Diablo. Comment
Read comments Jul 18 2011
  RSA0006004  Cordylanthus nidularius J. T. Howell 1942-7-19 17044 Contra Costa Northeast of Deer Flat, Mount Diablo Comment
  UC2028021  Cordylanthus pilosus subsp. pilosus Barbara Ertter 1997-9-14 15815 Contra Costa southwest side of Mount Diablo, Wall Point Road east of crest of ridge. Comment
  UC692512  Cornus glabrata Mary L. Bowerman 1935-6-21 3150 Contra Costa e. fork Arroyo del Cerro Mt. Diablo 182 Comment
  CAS-BOT-BC190026  Cortaderia selloana Walter Knight 1978-9-19 3247 Contra Costa Browns Island. South Landing. Comment
  UCSB29429  Corylus cornuta subsp. californica Havlik, Neil 1969-7-3 Contra Costa Grizzly Pk., Berkeley Hills 457 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
  UC2028952  Cotoneaster pannosus Barbara Ertter 2000-7-16 17388 Contra Costa lower Pine Creek in Diablo Foothills Regional Park. Comment
  UCD159362  Cotula coronopifolia D. S. Park; S. Joslin 2010-6-27 147 Contra Costa Santa Cruz. Lighthouse Field State Beach. Below W Cliff dr. Growing on rocky outcrops. Scattered individuals. 0 Comment
  JEPS99548  Crassula aquatica Mary Bowerman 1975-9-14 Contra Costa Mount Diablo, Hidden Pond. Comment
  CAS-BOT-BC427569  Crassula aquatica Virginia I. Dains; Walter Knight 1986-8-8 5459 Contra Costa Jct Rock S1 & Werner Cut, Ecos East Contra Costa County 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
  CDA15282  Cressa truxillensis G. F. Hrusa, D. Crowe, R. York 1998-7-17 14720 Contra Costa Sacramento Delta; E end of Dow Chemical property, Pittsburg. Comment
  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
  JEPS31075  Crocanthemum scoparium var. vulgare J. B. Davy 1895-1 Contra Costa Moraga Pass Oakland Hills 182 Comment
  POM138276  Croton californicus C. F. Baker 1903-4-25 2825 Contra Costa Antioch. Comment
  CDA32859  Crypsis schoenoides D. G. Kelch 2010-10-5 10 .421 Contra Costa The Delta; Just east of Antioch bridge. Comment
  SEINET4344622 Image available Crypsis schoenoides Barbara Ertter, M. L. Bowerman, L. Schultheis, Kevin Hintsa. 1995-10-22 14532 Contra Costa Three Springs Trail on NE side of Mt. Diablo, south of crest of Marsh Creek Rd. dried roadside pond, clay. Comment
  UC596346  Cryptantha decipiens R. F. Hoover 1938-5-4 3347 Contra Costa Peak east of Tassajero Creek Comment
  UC2028311  Cryptantha decipiens Barbara Ertter, Susan D'Alcamo 1998-6-12 16165 Contra Costa North Peak Trail from Devil's Elbow on SE side of Mount Diablo summit. Comment
  JEPS86564  Cryptantha flaccida Roy E. Buck 1988-4-23 902 Contra Costa 9 air km se Walnut Creek (ca 2.0 air km w of Moses Rock Spring, sw-facing slope on n side of North Gate Rd, 0.3 road mi se of park boundary); Mt. Diablo State Park 207 Comment
  UC1818922  Cryptantha flaccida Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14227 Contra Costa Mt. Diablo southeast of Walnut Creek, serpentine knoll ca 1/2 airmile north of Curry Point, grassland, oaks around knoll. . 487 Comment
  UC193956  Cryptantha microstachys Edward Lee Greene 1886-5-24 Contra Costa Mt. Diablo Comment
  UC691341  Cryptantha microstachys Mary L. Bowerman 1932-4-27 1388 Contra Costa w of Riggs Canyon (canyon, s-face of Oyster Ridge); Mount Diablo, Oyster Ridge 335 Comment
  UC78558  Cryptantha microstachys C. F. Baker 1903-4-28 2810 Contra Costa Mitchells Canyon Mt. Diablo Comment
  UC691348  Cryptantha muricata Mary L. Bowerman 1933-5-18 2129 a Contra Costa Mount Diablo Comment
  JEPS116792  Cryptantha torreyana David Gowen, Abby Moore, Mike Park 2006-6-13 608 Contra Costa Mount Diablo; Along access road to tower facility north of summit parking lot. Comment
  JEPS25274  Cuscuta salina var. major G. Thomas Robbins 1959-9-13 4161 Contra Costa n edge Pinole; San Pablo Bay Comment
  UC691857  Cuscuta subinclusa Mary L. Bowerman 1933-9-3 2418 Contra Costa s of Meridian-North Peak saddle; Mount Diablo Comment
  UC691908  Cuscuta subinclusa Mary L. Bowerman 1932-10-16 1633 Contra Costa Donner Canyon trail Mount Diablo Comment
  CDA15228  Cynara cardunculus G. F. Hrusa, D. Crowe 1998-5-8 14357 Contra Costa Sacramento Delta; Dow Chemical at Pittsburg. Comment
  CHSC23352  Cynodon dactylon Willis Ball 1975-5-15 527 Contra Costa Contra Loma Regional Park. In area #1 ca. 3 yds w of restroom facility at s end of reservoir. In lawn by beach area. 30 Comment
  HSC101961  Cynoglossum grande Nikolaus Gillen, Michelle Bihler 2014-3-20 13 Contra Costa Mount Diablo State Park. Eagle Peak Trail. 649 Comment
  UC1819037  Cynosurus echinatus Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14245 Contra Costa South side Mount Diablo, Sloan Road between Curry Point and Curry Canyon, roadside in partial shade of oak forest on north-facing slope. 487 Comment
  UC2061523  Cynosurus echinatus Dean G. Kelch 2016-5-27 16 .139 Contra Costa Miller-Knox Hill. Comment
  UCD161870  Cyperus James A. Neilson Jr. 1972-10-22 s.n. Contra Costa Contra Costa County. Lower Pine Creek. (Exact location unknown. Coordinates estimated by label maker.) Comment
  CAS-BOT-BC114619  Cyperus eragrostis Walter Knight; Joanne Dean 1978-8-14 3150 Contra Costa Browns Island Comment
  SEINET7581662 Image available Cyperus eragrostis Thomas Morley 1940-12-3 90 Contra Costa Bans at upper end of San Leandro Lake near mouth of Redwood Creek. 130 Comment
  UCD54038  Cyperus eragrostis Mrs. H. P. Kelley 1916-5-25 s.n. Contra Costa S.P. crossing, San Joaquin River. Comment
  UC2028349  Cypselea humifusa Barbara Ertter 2005-8-18 18635 a Contra Costa Mudflats on SE side of San Pablo Reservoir in East BAy Hills, east of San Pablo Dam Road between San Pablo and Orinda, access between HQ and boat launching area [reservoir way down this year while being drained for seismic work on dam] Comment
  JEPS107132  Cytisus scoparius Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14678 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay, northeast corner of area. Comment
  UC2070617  Danthonia californica Barbara Ertter 2002-5-16 17862 Contra Costa Richmond Field Station (UC-Berkeley). 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
  RSA0027405  Datura stramonium Barbara Ertter 1999-8-21 16790 Contra Costa Former reservoir upstream from mouth of Mitchell Canyon. Comment
  SBBG40548  Deinandra bacigalupii R. F. Hoover 1969-8-29 11564 Contra Costa Raymond Rd and Ames St, Livermore Valley Comment
  UCD131039  Deinandra bacigalupii Robert E. Preston 1996-7-30 989 Contra Costa on both sides of Greenville Road, 1/2 mile south of I-580. 182 Comment
  UCD36025  Deinandra corymbosa Beecher Crampton 1949-6-5 470 Contra Costa along Highway 40, Pinole to San Pablo, above Garrity Creek, on top of West Hills. 30 Comment
  SEINET3147522  Deinandra kelloggii K. Brandegee 1907-5-5 19 Contra Costa Near Antioch Comment
  CAS-BOT-BC291805  Deinandra lobbii H. M. Hall 1930-6-18 12791 Contra Costa South of Pittsburg Comment
  CAS-BOT-BC291808  Deinandra lobbii H. M. Hall 1930-6-18 12792 Contra Costa Somerville [Somersville], hills south of Pittsburg Comment
  SEINET9288997  Delairea odorata 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
  JEPS20341  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
  CAS-BOT-BC10306  Delphinium hesperium Mrs. E. C. Wright 1917-6-1 s.n. Contra Costa Mt. Diablo Comment
  RSA721744  Delphinium hesperium Barbara J. Ertter 1995-5-29 14242 Contra Costa S side Mt Diablo, edge of open meadow in flats near head of Curry Creek along road to Sheepherderss Springs from Sloam Road. 427 Comment
  JEPS6231  Delphinium hesperium subsp. hesperium Willis L. Jepson May 23-24 1891 21394 Contra Costa Mt. Diablo Comment
  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-BC10011  Delphinium hesperium subsp. pallescens John Thomas Howell 1934-4-8 11824 Contra Costa South of Antioch Comment
  LA207542  Delphinium hesperium subsp. pallescens H. Lewis; Carl Epling 1944-6-5 sn Contra Costa 1 mi. S of Marsh Creek Rd. on the Beck Rd. to Livermore Comment
  LA207544  Delphinium hesperium subsp. pallescens Lewis; Epling 1947-5-4 702 Contra Costa Curry Creek Park Road, 1 mi. W of Marsh Creek road Comment
  CAS-BOT-BC9901  Delphinium nudicaule Rimo Bacigalupi 1926-4-30 1353 Contra Costa Summit of Mount Diablo Comment
  UC765793  Delphinium nudicaule R. F. Hoover 1938-5-4 3340 Contra Costa Marsh Creek Canyon Comment
  RSA398660  Delphinium nudicaule John Doyen, Glenn A. Gorelick 1966-4-22 s.n. Contra Costa Russelman Park, Mt. Diablo State Park. 305 Comment
  JEPS65196  Delphinium patens subsp. patens L. R. Heckard 1971-4-15 2471 Contra Costa along Morgan Territory road 7 mi n intersection with Manning road (e of Mt. Diablo) 487 Comment
  UC692089  Delphinium patens subsp. patens Mary L. Bowerman 1935-4-22 2896 Contra Costa ridge w Pioneer Road (w of Old Stage Road); Mount Diablo 822 Comment
  UC9148  Delphinium patens subsp. patens J. Burtt Davy 1896-2-29 1263 Contra Costa Mitchell Canyon, Mt. Diablo Comment
  UC9159  Delphinium patens subsp. patens W. H. Brewer 1862-4-30 1017 Contra Costa Walnut Creek, Camp 69 Walnut Creek; , Camp 69 Comment
  LA93067  Delphinium recurvatum Lewis; 1963-4-11 1337 Contra Costa Byron Hot Springs Rd Comment
  UC60233  Deschampsia cespitosa subsp. beringensis Jos. Burtt Davy 1900-6-7 6667 Contra Costa near Martinez Martinez Comment
Read comments Sep 27 2007
  CDA9487  Deschampsia danthonioides D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .212 Contra Costa Byron Airport. Comment
  UC692103  Dicentra chrysantha Mary L. Bowerman 1932-9-3 1529 Contra Costa Muir Area; Mount Diablo Comment
  JEPS64178  Dichelostemma capitatum Adele Grant Mar 1914 Contra Costa Antioch Comment
  UC1133877  Dichelostemma capitatum C. M. Belshaw 1936-5-8 2060 Contra Costa se slope Mt. Diablo; Mt. Diablo Quad. 990 Comment
  UC3240  Dichelostemma capitatum W. H. Brewer 1862-4-24 991 Contra Costa near Camp 68; Martinez Comment
  CAS-BOT-BC500087  Dichelostemma capitatum James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  CHSC21611  Dichelostemma capitatum subsp. capitatum Willis Ball 1975-2-23 442 Contra Costa In area #2. Ca. 50 yds sw of main parking lot. Contra Loma Regional Park. 45 Comment
  UC1948965  Dichelostemma capitatum subsp. capitatum William J. Ferlatte, L. Maynard Moe 1970-4-27 1250 Contra Costa San Francisco Bay: Red Rock Island Comment
  JEPS112500  Dichelostemma congestum D. G. Kelch 2004-4-11 04 .71 Contra Costa Crockett - Bull Valley. EBRPD. Between Crockett and Port Costa 25 Comment
  UC692030  Dichelostemma congestum Mary L. Bowerman 1935-5-1 2943 Contra Costa 4.4 mi from West road (= North Rd.) entrance; Mount Diablo 396 Comment
  CAS-BOT-BC502180  Dichelostemma ida-maia E E Smith 1893-1-1 s.n. Contra Costa near Mount Diablo Comment
  UC1795853  Dichondra donelliana Barbara Ertter, Gary Schoolcraft 1996-4-7 14574 Contra Costa Point San Pablo in west Richmond, crest of road to yacht harbor, coastal grassland along ridge, scraped roadbed to tower. Comment
  JEPS121009  Digitaria sanguinalis D. G. Kelch 2006-9-6 06 .469 Contra Costa Elkhorn Creek, E of Crockett Comment
  CAS-BOT-BC150327  Diplacus aurantiacus L. R. Abrams 1916-6-30 5704 Contra Costa Mt. Diablo Comment
  OBI78484  Dirca occidentalis H. E. McMinn 1925-3-30 1402 Contra Costa Near summit Thornhill Rd and Skyline blvd Comment
  SBBG4896  Dirca occidentalis H. and M. Dearing 1940-3-20 4122 Contra Costa Berkeley hills in Tilden Park, Berkeley Comment
  UC565411  Dirca occidentalis Chas. M. Belshaw 1935-3-3 372 Contra Costa shallow draw on ne face Bald Peak; San Pablo Reservoir Comment
  LA209793  Dirca occidentalis Joseph Andorfer Ewan; 1936-4-15 9444 -a Contra Costa NE side Bald Peak, San Pablo Ridge 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
  UC792333  Disporum hookeri J. A. Rattenbury 1948-3-8 96 Contra Costa on s side of road nr creek 1/2 mi e of Oakland Tunnel 213 Comment
  CAS-BOT-BC208653  Distichlis spicata A. A. Beetle 1941-6-24 s.n. Contra Costa Point Richmond on San Francisco Bay Comment
  JEPS102900  Distichlis spicata Barbara Ertter, Chris Thayer 1996-10-25 15369 Contra Costa North Gate Road Mount Diablo 121 Comment
  RSA0028902  Distichlis spicata Barbara Ertter, Dan Norris 1999-11-14 16851 Contra Costa Black Diamond Mines Regional Preserve, south of parking area for Somersville townsite. Comment
  JEPS12755  Distichlis stricta Rimo Bacigalupi with G. T. Robbins 1955-5-4 4971 Contra Costa on Ygnacio Valley-Clayton Rd. 1.5 mi e Walnut Creek (margins of sulphur spring) 60 Comment
  CDA39011  Dittrichia graveolens D. G. Kelch 2011-9-23 11 .75 Contra Costa Carquinez Strait Region; Martinez Train Station. Comment
  CDA4505  Dittrichia graveolens D. G. Kelch 2006-9-25 6 .476 Contra Costa Carquinez Strait; Marsh 1km. W of Pacheco Slough. Comment
  UC2042955  Dittrichia graveolens Barbara Ertter with David Gowen, Mike Park and Abby Moore 2006-11-24 18785 Contra Costa Mt Diablo State Park, Live Oak Campground. Comment
  UC673358  Dodecatheon clevelandii subsp. patulum Herbert L. Mason 1925-2-28 1260 Contra Costa 1/2 mi e Rodeo; e of Rodeo Comment
  UC2062624  Dodecatheon clevelandii subsp. patulum Barbara Ertter with Steve Matson 2003-3-15 18109 Contra Costa Black Diamond Mines Regional Preserve, Black Diamond Trail in SW corner of park. Comment
  JEPS112042  Dodecatheon hendersonii A. G. Murdock 2003-2-21 70 Contra Costa Mt. Wanda - Martinez Edge of chaparral, northeastern area of Mt. Wanda property 115 Comment
  UC691830  Dodecatheon hendersonii Mary L. Bowerman 1931-3-7 555 Contra Costa South Road near upper end Mount Diablo Mount Diablo Comment
  UC1188740  Downingia insignis John H. Weiler 1959-4-11 5954 Contra Costa 3 mi w Byron (on the w side of the road) Comment
  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
  POM181468  Downingia insignis I. L. Wiggins 1930-4-17 4570 Contra Costa 1/4 mi. S. of Byron. Comment
  UC725662  Downingia ornatissima var. eximia A. A. Heller 1942-4-20 16432 Contra Costa w of Antioch (near the golf links) Comment
  POM312380  Downingia pulchella Francia Chisaki, S. Galen Smith, Peter M. Ray 1951-4-14 1980 Contra Costa 7 miles N of Walnut Creek, E of Hwy 21, 0.2 mile S of intersection with Hwy 4. Comment
  RSA721284  Downingia pulchella Barbara Ertter, Tom Delendick 1996-5-2 14607 Contra Costa Spring town wetlands, N of Livermore, along closed section of Hartford Rd. Comment
  SEINET5718194  Drimys winteri Shirley C. Tucker 1955-1 6088 B Contra Costa University of California Botanic Garden, Berkeley.; UC Botanic Garden Comment
  UC2027996  Drymocallis glandulosa var. wrangelliana Barbara Ertter 1998-5-3 16064 Contra Costa SE end of Wall Point Road on southwest flank of Mount Diablo. Comment
  UC691098  Drymocallis glandulosa var. wrangelliana Mary L. Bowerman 1933-5-22 2172 Contra Costa on north face w 1970 (Mount Diablo); Inner Black Hills, Mount Diablo Comment
  CAS-BOT-BC70864  Dryopteris arguta Mary L. Bowerman 1930-6-18 342 Contra Costa Dan Cook Canyon Comment
  CDA42721  Dryopteris arguta D. G. Kelch 2004-9-2 4 .34 Contra Costa Carquinez Strait Region; Martinez - West: Ozol Rock and Scenic Dive. East of Ozol. Comment
  JEPS100162  Dryopteris arguta A. Langston 2003-6-19 AL 50 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS111936  Dryopteris arguta D. G. Kelch 2005-5-1 05 .190 Contra Costa Crockett - Edwards Canyon 150 Comment
  JEPS111939  Dryopteris arguta A. G. Murdock 2004-2-12 205 Contra Costa Franklin Canyon - McHarry Ranch Rd. 126 Comment
  CAS-BOT-BC428219  Dudleya cymosa subsp. paniculata Alice Eastwood 1915-5-30 4523 Contra Costa Mount Diablo Comment
  UCD150908  Echinochloa crus-galli James A. Neilson Jr. 1972-11-2 3611 Contra Costa Walnut Creek drainage at State Highway 4. Elevation estimated using Google Earth by label maker. 1 Comment
  CAS-BOT-BC197107  Echinochloa crus-galli D. E. Breedlove 1970-9-3 17685 Contra Costa On Sierra Vista Way. Lafayette Comment
  POM300733  Echinochloa crus-galli Mary L. Bowerman 1938-10-15 372 Contra Costa North Road, by through where trail to west base spring begins. 213 Comment
  RSA0029360  Echinochloa crus-galli Barbara Ertter 1996-11-24 15421 Contra Costa West side of Mount Diablo, upstream from Pine Pond along Stage Road in Pine Canyon, floodplain at junction with Dusty Road. Comment
  SEINET3407559 Image available Echinocystis fabacea Lewis S. Rose 1933-3-10 33010 Contra Costa Marsh Creek Comment
  CAS-BOT-BC291117  Eclipta prostrata Walter Knight; Wayne Roderick; Steve Edwards; Bob Doyle 1978-9-19 3270 Contra Costa Browns Island. Point Emmet Comment
  CAS-BOT-BC211459  Elaeagnus angustifolia Dr. E. C. Van Dyke 1941-10-4 s.n. Contra Costa River bank east of Antioch Comment
  JEPS99514  Elatine brachysperma Mary Bowerman 1975-9-14 Contra Costa Mount Diablo, Hidden Pond. Comment
  UC1606336  Elatine californica Barbara Ertter, Brad Olson 1991-9-28 10829 Contra Costa betw Orinda and El Sobrante San Pablo Reservoir Comment
  UC1812  Eleocharis macrostachya J. Burtt Davy 1897-9-4 4077 Contra Costa Stege Comment
  CAS-BOT-BC112795  Eleocharis macrostachya Walter Knight; Irja Knight 1978-10-9 3320 Contra Costa Contra Loma Regional Park, Antioch, at reservoir's edge Comment
  CAS-BOT-BC112798  Eleocharis macrostachya Miss Mary Leolin Bowerman 1938-5-28 3645 Contra Costa Maple Spring, on upper margin especially in the NW corner. Comment
  RSA129552  Elymus X gouldii H. S. Yates 1933-6-18 3649 Contra Costa Mt Diablo; Near Danville 137 Comment
  JEPS111076  Elymus X hansenii Lee Echols 2003-5-4 s.n. Contra Costa N of Lark Drive in central portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  UC692423  Elymus X saundersii Mary L. Bowerman 1935-6-1 3109 Contra Costa largest ridge between Ransom Point ridge and Mitchell-Pine divide; Mount Diablo 1066 Comment
  RSA722472  Elymus glaucus Barbara Ertter 2002-6-16 17953 Contra Costa Richmond Field Station, southwest end of overgrown meadow near boundary with park, edge of thick growth facing fence. Comment
  UC766736  Elymus glaucus R. F. Hoover 1941-5-19 5105 Contra Costa Claremont Rd Berkeley Hills (e side of hills) Comment
  UCD62515  Elymus multisetus Beecher Crampton 1956-5-14 3386 Contra Costa Between the old coal mining towns of Somersville and Nortonville, 6.7 miles southwest of Antioch. Comment
  UCD150882  Epilobium brachycarpum James A. Neilson Jr. 1972-11-2 3605 Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 1 Comment
  UCD36037  Epilobium brachycarpum Beecher Crampton 1949-8-5 489 Contra Costa Between the cities of Orinda and Moraga, on Hill Road, off of Moraga Road, right at summit. 106 Comment
  UC1606296  Epilobium campestre Barbara Ertter 1990-9-10 9635 Contra Costa s Martinez (junction of Alhambra Creek Trail and Old Briones Rd.); Briones Hills, Briones Regional Park, Maricich Lagoon 335 Comment
  UC101787  Epilobium campestre Katharine Brandegee 1907-6-16 Contra Costa near S. P. Railway Station; Antioch Comment
  UC1949052  Epilobium campestre Barbara Ertter with Brad Olson 1991-9-28 10833 Contra Costa San Pablo Resrvoir between Orinda and El Sobrante Comment
  CAS-BOT-BC166165  Epilobium canum subsp. canum A. D. E. Elmer 1903-7-1 4620 Contra Costa Mount Diablo Comment
  UC634752  Epilobium canum subsp. canum Herbert L. Mason 1923-11-12 852 Contra Costa lower slopes Mt. Diablo Comment
  UC634754  Epilobium canum subsp. canum H. L. Mason 1924-11-23 1169 Contra Costa Las Trampas Ridge Comment
  CAS-BOT-BC166168  Epilobium canum subsp. canum H. E. McMinn 92 Contra Costa From n. slope of Mt. Diablo near the summit Comment
  JEPS111567  Epilobium ciliatum D. G. Kelch 2003-8-13 03 .142 Contra Costa Pinole Creek 68 Comment
  JEPS111564  Epilobium ciliatum subsp. ciliatum A. G. Murdock 2004-5-28 295 Contra Costa Refugio Valley 120 Comment
  UC1122560  Epilobium ciliatum subsp. ciliatum H. S. Yates 1934-9-2 4074 Contra Costa 1 1/2 mi nw Orinda; Concord Quadrangle Comment
  UC1606307  Epilobium ciliatum subsp. ciliatum Barbara Ertter, Chris Thayer 1993-5-7 11693 Contra Costa on Wildcat Canyon Rd 1/2 mi se Inspiration Point (e of Tilden Park, marshy area); East Bay Municipal Utilities land, Hopkins Spring 304 Comment
  UC1784916  Epilobium ciliatum subsp. ciliatum Barbara Ertter with Laura Fujii 1990-7-21 9401 Contra Costa Briones Regional Park, Briones Hills W of Pleasant Hill, at Bear Creek crossing on Homestead Valley trail 274 Comment
  UC2028971  Epilobium ciliatum subsp. ciliatum Barbara Ertter 2000-7-16 17393 Contra Costa lower Pine Creek in Diablo Foothills Regional Park. Comment
  JEPS22431  Epilobium cleistogamum Mary K. Curran May 1886 Contra Costa near Antioch Comment
  UC692440  Epilobium minutum Mary L. Bowerman 1935-5-18 3022 Contra Costa nw-facing slope across road and a little e of parking area; Mount Diablo 1066 Comment
  POM300656  Epilobium minutum Mary L. Bowerman 1933-6-3 2244 Contra Costa Mount Diablo: summit, on north face. Comment
  UC1507231  Epipactis helleborine C. J. Sheviak 1983-8-25 2516 Contra Costa along El Toyonal Rd. below Vallecito; Orinda Comment
  UC692076  Equisetum hyemale subsp. affine Mary L. Bowerman 1935-3-16 2744 Contra Costa e fork Arroyo del Cerro (10 ft below spring); Mt.Diablo 289 Comment
  CAS-BOT-BC57764  Equisetum telmateia Mary L. Bowerman 1939-3-31 3737 Contra Costa Mount Diablo, Johny Walker Spring. 731 Comment
  CDA42475  Equisetum telmateia var. braunii D. G. Kelch 2004-7-9 04 .292B Contra Costa Carquinez Strait; Crockett; Edwards Creek, immediately below high school. Comment
  POM300619  Equisetum telmateia var. braunii Mary L. Bowerman 1930-8-24 433 Contra Costa MItchell Canyon. 252 Comment
  POM300620  Equisetum telmateia var. braunii Mary L. Bowerman 1939-3-31 3737 Contra Costa Johnny Walker Spring. 732 Comment
  RSA118089  Eragrostis curvula J. T. Howell 1954-9-5 30026 Contra Costa Along road, Marsh Creek Springs Park Comment
  CAS-BOT-BC204545  Eragrostis curvula George W. Murray 1964-7-24 s.n. Contra Costa 1 to 2 miles east of Clayton, Marsh Creek Road Comment
  UC2028442  Eragrostis mexicana subsp. virescens Barbara Ertter with Chris Thayer 1996-10-25 15365 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park Comment
  RSA0027416  Eragrostis mexicana subsp. virescens Barbara Ertter 1997-8-24 15777 Contra Costa Mount Diablo, Summit Road just above Junction Station. 671 Comment
  JEPS103961  Eriastrum ertterae David Gowen 2003-6-14 Contra Costa Lime Ridge Open Space, near transmission tower 280 Comment
  CAS-BOT-BC514610  Eriastrum pluriflorum subsp. pluriflorum T. S. Brandegee 1883-6-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC131505  Ericameria arborescens Mary L. Bowerman 1932-9-17 1583 Contra Costa Donner Canyon, west fork: Bank between upper forks 304 Comment
  UC691866  Ericameria arborescens Mary L. Bowerman 1932-9-17 1583 Contra Costa w fork Donner Canyon (bank between upper forks); Mount Diablo 304 Comment
  UC2028020  Ericameria arborescens Barbara Ertter 1997-9-14 15816 Contra Costa Southwest side of Mount Diablo, Wall Point Road on open sandstone ridge northwest of Wall Point. Comment
  RSA72858  Ericameria linearifolia A. Kellogg, W. G. W. Harford 1868-5-28 548 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC287533  Ericameria linearifolia Rattan 1886-6-14 s.n. Contra Costa W slope of Mt Diablo Comment
  UC697206  Ericameria linearifolia Mary L. Bowerman 1938-5-28 3649 Contra Costa Silver Creek Nook Mount Diablo, Silver Creek Nook (North Road, peeping out from under a willow) 640 Comment
  CAS-BOT-BC300590  Erigeron foliosus var. franciscensis L. R. Abrams 1916-6-30 5701 Contra Costa Mt. Diablo near lake Comment
  CAS-BOT-BC300591  Erigeron foliosus var. franciscensis Roxana S. Ferris 1924-6-14 s.n. Contra Costa Summit of Mt Diablo Comment
  JEPS99952  Erigeron foliosus var. franciscensis A. Langston 2003-6-30 AL 56 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC697209  Erigeron foliosus var. franciscensis Mary L. Bowerman 1938-6-24 3592 Contra Costa s of firebreak Mountain House Canyon; Mount Diablo 792 Comment
  RSA517729  Erigeron philadelphicus Donald G. Nelson 1938-4-24 566 Contra Costa Marsh Creek Highway, 1 mile north of Mt. Diablo Comment
  UC1543059  Erigeron philadelphicus var. philadelphicus Donald G. Nelson 1938-4-24 566 Contra Costa 1 mi n Mount Diablo (Marsh Creek Highway) Comment
  UC31514  Erigeron philadelphicus var. philadelphicus J. Burtt Davy 1895-4-13 1007 Contra Costa near Lafayette Comment
  POM196479  Eriogonum J. T. Howell 1929-9-21 7392 Contra Costa Marsh Creek Road 8 miles southeast of Clayton Comment
  CAS-BOT-BC253239  Eriogonum fasciculatum var. foliolosum R. E. Frenkel 1963-11-2 304 Contra Costa Tilden Park, 1/4 mile south-east of Tilden Park Botanical Garden on east side of South Park Drive Comment
  CAS-BOT-BC250385  Eriogonum gracile Robert F. Hoover 1940-11-23 4695 Contra Costa Two miles west of Byron Comment
  JEPS99584  Eriogonum gracile Mary Bowerman 1994-6-19 Contra Costa Mount Diablo, main summit road just below lower parking lot. Comment
  UC692049  Eriogonum gracile Mary L. Bowerman 1930-9-27 468 Contra Costa West base spring Mount Diablo Comment
  RSA0027415  Eriogonum gracile Barbara J. Ertter 1997-8-24 15773 Contra Costa Mount Diablo, SE side of peak on Mary Bowerman/Fire Interpretive Trail. Comment
  CAS-BOT-BC257474  Eriogonum inerme var. inerme Mary L. Bowerman 1931-6-4 920 Contra Costa Mount Diablo. Summit Comment
  UC521769  Eriogonum luteolum var. luteolum Joseph Andorfer Ewan 1933-10-15 8022 Contra Costa sw slope Mt. Diablo Mt. Diablo Comment
  CAS-BOT-BC259524  Eriogonum luteolum var. luteolum Janet Haden 1988-10-10 s.n. Contra Costa Mt. Zion quarry on a peripheral terrace. Near Clayton 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
  CAS-BOT-BC268916  Eriogonum nudum var. auriculatum Mary L. Bowerman 1932-9-17 1585 Contra Costa Mount Diablo. Donner Canyon, West fork: of west fork 335 Comment
  UC1607640  Eriogonum nudum var. auriculatum Barbara Ertter, Brad Olson 1993-10-30 12285 Contra Costa w junction of San Pablo Avenue and Vista del Rio (at base of steep bluff above railroad tracks; w of Crockett); Carquinez Strait Regional Shoreline Comment
  UC692045  Eriogonum nudum var. auriculatum Mary L. Bowerman 1930-8-24 424 Contra Costa Mitchell Canyon, lower trail Mount Diablo 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
  UC692165  Eriogonum nudum var. auriculatum Mary L. Bowerman 1933-9-3 2425 Contra Costa North Peak ridge Mount Diablo Comment
  CAS-BOT-BC268905  Eriogonum nudum var. auriculatum H. E. McMinn No date on label 133 Contra Costa Collected from near summit of Mt. Diablo, N. slope Comment
  CAS-BOT-BC268914  Eriogonum nudum var. auriculatum John Thomas Howell 1929-9-21 4393 Contra Costa On Marsh Creek Road 8 miles se. of Clayton Comment
  CAS-BOT-BC269818  Eriogonum nudum var. psychicola Peter Rubtzoff 1954-9-14 1746 Contra Costa Along lower San Joaquin River, east of Antioch Comment
  JEPS79014  Eriogonum nudum var. psychicola Edward Lee with Annetta Carter 1935-8-17 1631 Contra Costa Antioch Comment
  UC1229891  Eriogonum nudum var. psychicola Jerry Powell 1962-8-19 308 Contra Costa about 2 mi e Antioch Comment
  CAS-BOT-BC269815  Eriogonum nudum var. psychicola Walter Knight 1965-9-7 1175 Contra Costa Antioch sand dunes Comment
  CAS-BOT-BC269820  Eriogonum nudum var. psychicola Jerry A. Powell 1962-8-19 3082 Contra Costa Ca. 2 miles east of Antioch Comment
  SEINET3025701 Image available Eriogonum nudum var. psychicola Barbara J. Ertter 1997-8-18 15766 Contra Costa Antioch Dunes. Antioch Dunes (USFWS National Wildlife Refuge) on San Joaquin River east of Antioch, southwest corner of refuge north of railroad tracks in former vinyard. Comment
  JEPS56455  Eriogonum roseum Willis L. Jepson 1895-9-14 14779 Contra Costa Walnut Creek Comment
  RSA0033856  Eriogonum roseum Barbara Ertter, Tony Morosco 1998-9-18 16436 Contra Costa NE corner of Lime Ridge Open Space northwest of Mount Diablo. 182 Comment
  SEINET3836874 Image available Eriogonum roseum W. L. Jepson 1895-9-14 14779 Contra Costa Walnut Creek Comment
  RSA766267  Eriogonum roseum Joseph A. Ewan 1933-10-15 8022 Contra Costa Grassy slope above Indian Ceremonial Spr., Mt. Diablo Comment
  CAS-BOT-BC267449  Eriogonum truncatum M. K. Curran 1886-5-1 s.n. Contra Costa Antioch Comment
  POM165269  Eriogonum truncatum C. F. Baker 1903-4-28 2833 Contra Costa Marsh Creek, Mount Diablo 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-BC267873  Eriogonum umbellatum var. bahiiforme Mary L. Bowerman 1930-6-14 328 Contra Costa Mount Diablo Comment
  UC691562  Eriogonum umbellatum var. bahiiforme Mary L. Bowerman 1930-6-14 328 Contra Costa summit Mount Diablo Mount Diablo Comment
  CAS-BOT-BC262345  Eriogonum vimineum Joseph Andorfer Ewan 1933-10-15 8022 Contra Costa S.W. slope Mt. Diablo Comment
  CAS-BOT-BC262348  Eriogonum vimineum Mary L. Bowerman 1932-8-27 1524 Contra Costa Mount Diablo. South of Turtle Rock Comment
  CAS-BOT-BC262350  Eriogonum vimineum John Thomas Howell 1955-8-24 30903 Contra Costa Near summit of South Peak, Mt. Diablo 1158 Comment
  CAS-BOT-BC262351  Eriogonum vimineum Alice Eastwood 1915-5-30 s.n. Contra Costa Mt. Diablo Comment
  UCD101575  Eriogonum wrightii var. trachygonum Osterli 1950-10-1 s.n. Contra Costa Contra Costa County. Comment
  CAS-BOT-BC298509  Eriophyllum confertiflorum H. E. McMinn 1923-6-18 1152 Contra Costa Horn Canon Comment
  POM301036  Eriophyllum confertiflorum Mary L. Bowerman 1933-6-3 2224 Contra Costa 2 miles by road from North Gate Comment
  UC691731  Eriophyllum confertiflorum var. confertiflorum Mary L. Bowerman 1933-6-3 2225 Contra Costa 2 mi by road from North Entrance; Mount Diablo Comment
  UC507130  Eriophyllum lanatum var. achilleoides Lincoln Constance 1933-6-25 E 98 Contra Costa summit Mount Diablo 1158 Comment
  UCD132203  Eriophyllum lanatum var. achilleoides P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  CAS-BOT-BC300967  Eriophyllum lanatum var. achilleoides L. Constance 1933-6-25 E 98 Contra Costa Summti of Mt. Diablo 1158 Comment
  CAS-BOT-BC300973  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1935-5-22 3065 Contra Costa Mount Diablo. Most westerly of the two ridges which converge at Twin Peaks (Eagle Point ridge) 365 Comment
  CAS-BOT-BC300982  Eriophyllum lanatum var. achilleoides Lincoln Constance; Helen Sharsmith; Carl Sharsmith 1933-4-30 E 17 Contra Costa Black Hills, Mount Diablo Comment
  JEPS34592  Eriophyllum lanatum var. achilleoides W. L. Jepson 1918-6-5 7608 Contra Costa on the n peak Mt. Diablo Comment
  RSA97649  Eriophyllum lanatum var. achilleoides J. T. Howell 1950-7-5 26636 Contra Costa Brushy slope above Nortonville Comment
  POM358034  Eriophyllum lanatum var. grandiflorum E. E. Stanford 1930-5-24 1513 Contra Costa Marsh Creek Canyon. Comment
  UC692708  Erodium botrys Mary L. Bowerman 1931-3-14 571 Contra Costa Windy Point Mount Diablo Comment
  JEPS107117  Erodium brachycarpum Barbara Ertter, Mary Bowerman et al. 1995-5-7 14044 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, grassy flat, roadside vegetation, clay substrate. Comment
  UC35196  Erodium macrophyllum V. King Chesnut 1888-4-14 Contra Costa Moraga Valley Comment
  UC21040  Eryngium aristulatum var. aristulatum Jos. Burtt Davy 1900-6-7 6660 Contra Costa near Martinez Comment
  JEPS121011  Eryngium armatum D. G. Kelch 2007-4-1 07 .108 Contra Costa Pt. Pinole Comment
  UC692318  Eryngium castrense Mary L. Bowerman 1935-6-28 3169 Contra Costa Mt. Diablo, Chase Pond 548 Comment
  CDA38314  Eryngium jepsonii D. G. Kelch 2003-6-22 3 .091 Contra Costa Carquinez Strait Region; Pt. Costa - Shore: Above Pt. Costa (above road between McEwen and EBRP staging area). Comment
Read comments Dec 13 2016
  JEPS97706  Eryngium vaseyi Annetta M. Carter, Tom Morley, Malcolm Nobs 1951-3-25 3006 Contra Costa 3.3 mi. S of Byron. Comment
  UC1190973  Eryngium vaseyi Lincoln Constance, Reino Alava and Rimo Bacigalupi 1958-6-6 3661 Contra Costa 3 mi. s.e. Byron; San Joaquin Valley 10 Comment
  UC1487327  Eryngium vaseyi Yusuf Sheikh 1974-5-5 587 B Contra Costa 2.1 mi. s.e. of Byron Post sign on rd. J4 Byron (3.1 mi. s.e. of intersection with Camino Diablo) Comment
  UC765562  Eryngium vaseyi R. F. Hoover 1937-5-14 2124 Contra Costa Byron Hot Springs Comment
  SEINET13944077 Image available Eryngium vaseyi Lincoln Constance, Reino Alava & Rimo Bacigalupi 1958-1 3661 Contra Costa open country 3 miles southeast of Byron, San Joaquin Valley. Elev ca 35 ft 11 Comment
  UC1126602  Erysimum capitatum R. C. Wilson 1935-3-28 152 Contra Costa 1 mi s Mount Diablo; Mt. Diablo Quadrangle 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
  POM272910  Erysimum capitatum var. capitatum Lyman Benson 1935-3-16 6261 Contra Costa Mt. Diablo, Watershed: Walnut Creek; Mountain Range: Mt. Diablo. 915 Comment
  UC10532  Erysimum capitatum var. capitatum J. Burtt Davy 1895-4-7 876 Contra Costa Antioch Comment
  RSA101891  Erysimum capitatum var. capitatum G. B. Rossbach, Ruth P. Rossbach 1938-6-5 859 Contra Costa Near summit of Mt Diablo. 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-BC402986  Eschscholzia californica A. A. Heller 1906-4-14 8177 Contra Costa Tracy Comment
  PASA450  Eschscholzia californica Annetta Carter 1929-3-31 Contra Costa Near Clayton. Hills north of Mt. Diablo 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
  UC186890  Eschscholzia rhombipetala E. L. Greene 1888-3-25 Contra Costa near Byron Comment
  JEPS100064  Eucalyptus globulus A. Langston 2003-7-24 AL 72 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1789216  Eucalyptus tereticornis Barbara Ertter with Dan Norris 2001-4-8 17604 Contra Costa Lime Ridge Open Space, main pit of west quarry area north of adjacent golf course 121 Comment
  JEPS112429  Eucrypta chrysanthemifolia C. Thayer, J. Dunne 1997-3-27 Contra Costa 91 Comment
  JEPS111510  Eucrypta chrysanthemifolia var. chrysanthemifolia Dean G. Kelch and Andrew G. Murdock 2005-5-13 05 .273 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 22 Comment
  UC1005249  Eucrypta chrysanthemifolia var. chrysanthemifolia Rolf Y. Berg 1955-6-29 Contra Costa ne of Mt. Diablo State Park (Mitchell Canyon); Mitchell Canyon 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
  UC2032815  Euphorbia lathyris Doran, Andrew Scott 2012-3-20 685 Contra Costa North end of Brooks Island along ridge, cleared area northwest of caretakers residence. Garden waste area. Comment
  UC1555266  Euphorbia oblongata R. C. Stebbins 1988-5-19 Contra Costa Tilden Park; Memory Trail about 50 yds ne of intersection with Canon Drive Comment
  CDA4842  Euphorbia oblongata Margaret Bellue, A. Seeley Jun 1955 Contra Costa Highway 4, near Concord. 0 Comment
  RSA600234  Euphorbia oblongata L. C. Wheeler 1958-8-26 7446 Contra Costa Ca. 2 mi. southwest of Martinez, 0.3 mi. northwest of Glen Frazer on Santa Fe; apparently Franklin Canyon/ 1.7 mi. west of Martinez at limit on California Route 4. Comment
  UCD142410  Euphorbia oblongata Thomas C. Fuller 1958-7-30 s.n. Contra Costa State Highway 4; 3 miles west of Martinez. Comment
  CHSC75081  Euphorbia peplus Roger Thom 1987-5-24 15 Contra Costa 1510 Carmel Dr. Walnut Creek. Rose garden. 30 Comment
  UC2028962  Euphorbia peplus Barbara Ertter 2003-2-8 18092 Contra Costa Richmond Field Station (UC-Berkeley), weedy edge of interior open space next to Egret Drive. Comment
  CHSC97888  Euphorbia portlandica Niang 2006-6-20 PDR 1373984 Contra Costa Annie's Annuals, 801 Chesley Ave. Richmond. Comment
  UC199008  Euphorbia spathulata Chesnut and Drew 1889-4-18 Contra Costa Brentwood Comment
  UC615424  Euphorbia spathulata Beryl O. Schreiber 1932-3-27 128 Contra Costa Mountain House Comment
  UC2062611  Euphorbia spathulata Barbara Ertter 2003-3-28 18134 Contra Costa Round Valley Regional Preserve, mid Hardy Canyon along High Creek. Comment
  CDA5289  Euthamia occidentalis D. G. Kelch 2004-7-9 4 .309 Contra Costa Carquinez Strait Region; Pacheco Marsh. Pacheco Hill Marsh west of Pacheco Slough. Comment
  UCD150901  Euthamia occidentalis James A. Neilson Jr. 1972-10-22 3601 Contra Costa Walnut Creek drainage, near mouth of Walnut Creek. Elevation estimated using Google Earth by label maker. 0 Comment
  CAS-BOT-BC278178  Festuca D. E. Breedlove 1971-5-14 19337 Contra Costa Along Sierra Vista Way, Lafayette Comment
  UC2028589  Festuca arundinacea Barbara Ertter with Mary Bowerman 1996-11-1 15399 Contra Costa North base of Mount Diablo, near Donner Canyon trailhead at end of Regency Drive Comment
  UC2028533  Festuca microstachys Barbara Ertter with Tony Morosco 1998-4-12 15989 Contra Costa Base of Mount Olympia on north side of Mount Diablo. Comment
  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
  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
  UCD127505  Foeniculum vulgare P. B. Kennedy 1914-7-1 s.n. Contra Costa Richmond. Comment
  UC691116  Fragaria vesca Mary L. Bowerman 1933-4-28 1893 Contra Costa e fork at water trough Curry Cave Point trail; Mount Diablo 457 Comment
  CAS-BOT-BC62925  Frangula californica subsp. tomentella H. E. McMinn s.n. Contra Costa Mt. Diablo. Comment
  UC2027914  Frangula californica subsp. tomentella Barbara Ertter 2000-9-30 17529 Contra Costa Diablo Foothills Regional Park, Stage Road in Pine Canyon. Comment
  POM300728  Fraxinus dipetala Mary L. Bowerman 1930-6-22 363 Contra Costa Mount Diablo: Mitchell Canyon Comment
  UC1123360  Fraxinus dipetala C. M. Belshaw 1936-5-15 2128 Contra Costa Stewartsville Mt. Diablo Quad. 228 Comment
  UCD102397  Fraxinus dipetala Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Bald Ridge Trail. Bald Ridge. 860 Comment
  UC169477  Fritillaria affinis Katharine Brandegee April 1913 Contra Costa Eastport, Redwood Canyon, Oakland Hills, electric RR tunnel entrance Redwood Canyon; Eastport, , Oakland Hills Comment
  UC692003  Fritillaria affinis Mary L. Bowerman 1931-3-8 562 Contra Costa Mount Diablo, near mouth of Mitchell Canyon Mitchell Canyon; Mount Diablo, Mitchell Canyon Comment
  JEPS2598 Image available Fritillaria agrestis J. Burtt Davy 1895-4-7 987 Contra Costa Antioch Comment
  UCD84953  Fritillaria agrestis Chuck Hughes 2010-4-1 225 Contra Costa About 0.6 mile east of Los Vaqueros Road. 305 Comment
  CAS-BOT-BC130353  Fritillaria liliacea Robert F. Hoover 1938-3-8 2819 Contra Costa Berkeley Country Club Comment
  UC13831  Fritillaria liliacea J. P. Tracy 1900-3-24 612 Contra Costa near Point Richmond (San Francisco Bay Region); San Francisco Bay Region 3 Comment
  UC13832  Fritillaria liliacea J. Burtt Davy 1900-3-24 6530 Contra Costa Stege; Western Middle California, Stege Comment
  CAS-BOT-BC130352  Fritillaria liliacea 1902-3-1 s.n. Contra Costa Danville Comment
  JEPS113074  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
  SD241825  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
  JEPS124467  Galium andrewsii subsp. gatense Daniel Slakey with CNPS Volunteers 2015-7-6 140 Contra Costa Mt. Diablo, along Oak Knoll Trail about 700 meters east of Summit Rd. Comment
  UC606742  Galium aparine Edward Lee 1936-4-19 1966 Contra Costa bluff at ne corner of island San Francisco Bay, Red Rock Comment
  JEPS23262  Galium divaricatum G. Thomas Robbins 1959-5-23 4031 Contra Costa hillslope about one-half mi e Point San Pablo (overlooking San Pablo Bay); Richmond 7 Comment
  JEPS112108  Galium murale D. G. Kelch 2004-3-12 04 .36 Contra Costa Pinole Valley Hillside and canyon above Wright Road. Off of Pinole Valley Road 220 Comment
  UC2027989  Galium murale Barbara Ertter 1998-5-3 16031 Contra Costa Pine Ridge summit of Wall Point Road at southwest base of Mount Diablo. Comment
  JEPS97597  Galium porrigens R. D. Stone 1981-3-23 346 Contra Costa Huckleberry Trail Oakland Hills, near Alameda-Contra Costa county line (northeast of intersection of Skyline Blvd. and Snake Rd.) Comment
  CAS-BOT-BC200634  Garrya elliptica John Thomas Howell 1925-9-12 1437 Contra Costa Oakland Hills at head of San Leandro Canyon Comment
  CAS-BOT-BC200636  Garrya elliptica C. H. M. 1919-8-24 s.n. Contra Costa Las Trampas Peak Comment
  JEPS77010  Garrya elliptica Robert M. Lloyd 1963-3-17 2137 Contra Costa 0.5 mi e Grizzly Peak Road intersection with Skyline Drive (on Skyline Drive, across from 7090 Skyline, Huckleberry 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
  UC2028041  Garrya elliptica Barbara Ertter 1998-3-7 15928 Contra Costa Southwest side of Mount Diablo, west-most knoll on Fossil Ridge, at end of fire road. Comment
  CAS-BOT-BC169944  Garrya fremontii Lewis S. Rose 1954-6-29 54084 Contra Costa Mt. Diablo, summit 1170 Comment
  CAS-BOT-BC169946  Garrya fremontii L. R. Abrams 1910-10-8 4353 Contra Costa Mt. Diablo summit 1158 Comment
  POM300684  Gastridium phleoides Mary L. Bowerman 1933-6-14 2272 Contra Costa Curry Cave Canyon: Ridge between two main forks. Mount Diablo. Comment
  UCD66597  Gastridium phleoides M. Wiesendanger 1926-5-1 1523 Contra Costa Near Richmond. Comment
  UC691264  Gastridium ventricosum Mary L. Bowerman 1932-11-19 1664 Contra Costa Alder Spring (Mountain Springs Canyon--In 1936 beneath fire trail e from Pioneer Camp) Mount Diablo; , Alder Spring Comment
  HSC8643  Geranium carolinianum Greg Bos 1963-3-9 31 Contra Costa Point Isabel, Richmond 3 Comment
  CDA23560  Geranium core-core D. G. Kelch, D. A. Weinstein 2008-1-4 8 .001 Contra Costa Carquinez Strait; Pt Pinole. Along asphalt access road. Comment
  JEPS111978  Geranium dissectum D. G. Kelch 2003-3-28 03 .89 Contra Costa Rodeo - Lone Tree Point 2 Comment
  UC2032836  Geranium dissectum Doran, Andrew Scott 2012-3-20 706 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  JEPS111980  Geranium molle D. G. Kelch 2003-3-21 03 .68 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 2 miles west of Martinez Contra Costa County CA. Grassy hill above cottonwood tree. Just south of end gate of Carquinez Scenic Drive 40 Comment
  UC691599  Gilia achilleifolia subsp. achilleifolia Mary L. Bowerman 1935-5-8 2970 Contra Costa Muir Area, Mount Diablo Mount Diablo, Muir Area Comment
  UC691601  Gilia achilleifolia subsp. multicaulis Mary L. Bowerman 1935-4-17 2839 Contra Costa West Road 2 mi from entrance Mount Diablo ((= North Rd.)); , West Road 289 Comment
  RSA276842  Gilia capitata subsp. staminea James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  UC932019  Gilia capitata subsp. staminea Verne Grant, Alva Grant 1947-4-13 7925 Contra Costa sand hills by railroad tracks e Antioch; e of Antioch Comment
  RSA63718  Gilia capitata subsp. staminea Verne Grant, Alva Grant 1947-4-13 7925 Contra Costa By railroad tracks east of Antioch. Comment
  UC691608  Gilia clivorum Mary L. Bowerman 1935-5-1 2932 Contra Costa West Road 2 mi from entrance (( = North Road), Mount Diablo); Mount Diablo, West Road (=North Road) 182 Comment
  UC2029000  Gilia clivorum Barbara Ertter 2000-3-30 16919 Contra Costa North side of Mount Diablo, open rocky area ca halfway down Back Canyon Trail from Murchio Gap. Comment
  UC1554401  Gilia millefoliata Alice M. Ottley 1920-3-6 219 Contra Costa Black Hills San Francisco Bay Region, Black Hills Comment
  SEINET12278814  Gilia tricolor H. M. Hall 1901-1 1727 Contra Costa Region of San Francisco Bay, Mt. Diablo Comment
  UC809626  Gilia tricolor subsp. diffusa Verne Grant, Alva Grant 1949-3-30 8640 Contra Costa on Marsh Creek road 4 mi w Byron; w of Byron Comment
  UC367225  Gilia tricolor subsp. tricolor J. G. Lemmon 1878-4-26 Contra Costa side of Mt. Diablo Comment
  UC691596  Gilia tricolor subsp. tricolor Mary L. Bowerman 1933-3-18 1756 Contra Costa Meridian Peak w Rhine Canyon (Mount Diablo); , Meridian Peak w of Rhine Canyon Comment
  UC2029034  Gilia tricolor subsp. tricolor Barbara Ertter 2000-3-30 16911 Contra Costa North side of Mount Diablo, Deer Flat at head of Mitchell Canyon. Comment
  JEPS99596  Githopsis diffusa subsp. robusta Mary Bowerman 1978-5-14 Contra Costa Mount Diablo, Back Canyon trail to mine. Comment
  SEINET10464449  Githopsis diffusa subsp. robusta Bowerman 1933-6-7 BOWERMAN 2260 Contra Costa North Peak; Bare rocks by register Comment
  UC1784219  Glycyrrhiza lepidota Ethel Crum 1930-9-29 856 Contra Costa Marsh Creek Road to Holt Comment
  CDA5999  Gnaphalium canescens subsp. beneolens D. G. Kelch, A. G. Murdock 2004-9-2 4 .345 Contra Costa Carquinez Strait Region; Martinez -West: Ozol Rock and Scenic Drive. Alhambra Road. South of Green Street. Comment
  CAS-BOT-BC303201  Gnaphalium palustre J. (Germany) Bauer 1851-5-1 s.n. Contra Costa At Mt Diablo [Ad Mond Diabalo] Comment
  CAS-BOT-BC303892  Gnaphalium palustre E. M. Zeile 1924-5-6 s.n. Contra Costa Near Walnut Creek Comment
  SEINET3150085  Godetia purpurea L. S. Rose 1938-5-8 38224 Contra Costa Antioch 15 Comment
  CAS-BOT-BC305232  Grindelia hirsutula Walter Knight 1978-8-27 3144 Contra Costa Contra Loma Regional Park 30 Comment
  CAS-BOT-BC305233  Grindelia hirsutula Evelina Cannon 1895-12-25 s.n. Contra Costa Pinole Pt. Comment
  JEPS111071  Grindelia hirsutula Lee Echols 2003-6-17 s.n. Contra Costa N of Lark Drive in central portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  JEPS120269  Grindelia hirsutula Barbara Ertter with David Gowen 2012-6-9 21023 Contra Costa at junction of Seaview Trail and road into EBMUD land north of Vollmer Peak, southeastern Tilden Park in Berkeley Hills Comment
  JEPS25017  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
  UC1118567  Grindelia hirsutula C. M. Belshaw 1936-5-15 2127 Contra Costa 2 1/2 mi nw Lone Tree Valley; Mt. Diablo Quad. Comment
  UC1599361  Grindelia hirsutula Katharine Brandegee 1911-7-6 Contra Costa Pt. Isabel Pt. Isabel (near RR crossing) Comment
  UC1610053  Grindelia hirsutula Meredith A. Lane 1986-9-8 3104 Contra Costa at n city limit Pinole (along San Pablo Blvd.) 15 Comment
  UC1618424  Grindelia hirsutula Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10872 Contra Costa just w of Antioch Marina (Dow Wetlands Preserve); Dow Wetlands Preserve Comment
  UC630415  Grindelia hirsutula Paule Guiguet and Annetta Carter 1939-8-13 1454 Contra Costa Treat Avenue se Concord 53 Comment
  UC2027746  Grindelia hirsutula Barbara Ertter 1997-1-5 15434 Contra Costa Ygnacio Valley Road crossing Lime Ridge on northwest side of Mount Diablo. Comment
  RSA144687  Grindelia stricta var. angustifolia G. Thomas Robbins 1958-10-2 3941 Contra Costa Along Southern Pacific Railroad just W of Carlson Blvd., near Stege railroad siding, Richmond. Comment
  UC137040  Guillenia flavescens Katharine Brandegee 1907-5-4 Contra Costa between Antioch and Marsh Creek Comment
  UC691137  Guillenia flavescens Mary L. Bowerman 1935-4-17 2842 Contra Costa 2 mi from West road (=North Rd.) entrance (ridge w of chaparral, immediately e of section line); Mount Diablo 304 Comment
  UC691126  Guillenia lasiophylla Mary L. Bowerman 1930-6-7 291 Contra Costa Meridian Peak summit Mount Diablo Comment
  UC1118612  Gutierrezia californica G. T. Nordstrom 1937-10-28 1406 Contra Costa 1.6 mi nne Somersville; Mt. Diablo Quad. 182 Comment
  CAS-BOT-BC304580  Gutierrezia californica L. R. Abrams 1917-9-13 6728 Contra Costa Patterson Pass Comment
  CAS-BOT-BC304581  Gutierrezia californica Mary L. Bowerman 1938-11-12 3729 Contra Costa Mount Diablo. Lime Ridge toward crest of hilllside north of break 152 Comment
  UCD36026  Hainardia cylindrica Beecher Crampton 1949-6-6 471 Contra Costa Contra Cost County, city of Richmond. 16 Comment
  UC1050012  Hebe speciosa N. Floy Bracelin 1941-8-3 1537 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  SEINET10579391  Hedera helix Barbara J. Ertter 1994-10-23 Ertter 13915 Contra Costa Southwest El Cerrito, north edge of Breuner's parking lot, northwest Albany Hill. Comment
  UCD159534  Hedypnois cretica D. S. Park 2011-4-13 282 Contra Costa east side of Sunrise Hill Rd. Abundant. Not in flower/basal rosette. Disturbed/weedy habitat. Hillside. 181 Comment
  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
  UC1795793  Hedypnois rhagadioloides Barbara Ertter, Mary Bowerman 1995-6-11 14249 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
  UC2028485  Hedypnois rhagadioloides Barbara Ertter 1998-5-3 16045 Contra Costa Pine Canyon/Stage Road upstream from Dusty Road junction, southwest flank of Mount Diablo Comment
  UC80320  Helenium bigelovii J. W. Congdon 1893-7-29 Contra Costa Martinez Comment
  JEPS111680  Helenium puberulum D. G. Kelch 2003-8-13 03 .134 Contra Costa Pinole Creek 68 Comment
  JEPS22068  Helenium puberulum G. Thomas Robbins 1958-7-19 3901 Contra Costa about one-half mi e Point San Pablo (meadow overlooking Pt. San Pablo); Richmond Comment
  UCD132756  Helenium puberulum Malcolm A. Nobs; S. Galen Smith 1949-7-8 949 Contra Costa Otto's Black Bass Resort, 4 miles N of Kingston. Comment
  CAS-BOT-BC309407  Helenium puberulum John Thomas Howell; Gordon H. True 1972-6-29 48932 Contra Costa On Byron Hot Springs Road southeast of Byron 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
  POM312329  Helenium puberulum Malcolm A. Nobs, S. Galen Smith 1949-7-8 949 Contra Costa Otto's Black Bass Resort, 4 miles north of Kingston. Comment
  CAS-BOT-BC305326  Helianthella castanea John Thomas Howell 1931-5-12 6475 Contra Costa Nortonville Comment
  UC194923  Helianthella castanea H. M. Hall 1916-5-31 10137 a Contra Costa exposed flat on s side Mt. Diablo Comment
  UC2013032  Helianthella castanea Barbara Ertter with Travis Columbus 1990-6-10 9107 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill; E-facing steep hillside above junction of Spengler and Blue Oaks trails. Comment
  UC57441  Helianthella castanea H. M. Hall 1901-4-5 1733 Contra Costa Mt. Diablo Region of San Francisco Bay, Mt. Diablo Comment
  UC691738  Helianthella castanea Mary L. Bowerman 1930-6-10 301 Contra Costa Summit Meridian Peak; Mount Diablo Comment
  UC761942  Helianthella castanea R. F. Hoover 1939-4-13 4014 Contra Costa head (west branch) Markeley Canyon Comment
  CAS-BOT-BC305324  Helianthella castanea W. C. McCalla 1925-4-22 s.n. Contra Costa Leona Heights near Oakland Comment
  UCR260817  Helianthus annuus D. Finley 1998-4-25 1- 07 Contra Costa San Francisco Bay Region, Lafayette, 2.5 miles at the crow flies west of highway 24 east in a residential area, on Lafayette Ridge behind 1212 Monticello Road 229 Comment
  CAS-BOT-BC305374  Helianthus annuus Walter Knight 1965-9-7 1163 Contra Costa Antioch sand dunes Comment
  UC1618418  Helianthus californicus Barbara Ertter, Diane Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10719 Contra Costa west-most point opposite Pittsburg Marina (Browns Island n of Pittsburg near confluence of Sacramento and San Joaquin Rivers); Browns Island Comment
  UC1795663  Helianthus californicus Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14628 Contra Costa Little Pine Creek at northwest foot of Mt. Diablo, along trail connecting North Gate Road to Castle Rock Road, Diablo Foothills Regional Park; along stream above stable, riparian vegetation. 91 Comment
  JEPS99485  Helianthus gracilentus Mary Bowerman 1995-5-21 Contra Costa Mount Diblo. Wall Pt. Trail ca. 1/2 mi. E of Wall Pt. 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
  UC1392954  Hemizonia congesta subsp. lutescens R. F. Hoover 1969-9-1 11568 Contra Costa between San Pablo and Pinole Comment
  UC201230  Hemizonia congesta subsp. lutescens H. M. Hall 1914-9-19 9883 Contra Costa 1 km nw of town on Broadway; San Pablo 18 Comment
  CAS-BOT-BC306265  Hemizonia congesta subsp. lutescens R. E. Frenkel 1963-8-18 260 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  JEPS38255  Hemizonia congesta subsp. luzulifolia W. L. Jepson 1940-6-5 19935 Contra Costa Richmond Comment
  CAS-BOT-BC314854  Hemizonia congesta subsp. luzulifolia L. R. Abrams 1910-10-9 4358 Contra Costa Between San Ramon and Dublin Comment
  CAS-BOT-BC314856  Hemizonia congesta subsp. luzulifolia R. Bacigalupi 1922-9-24 s.n. Contra Costa Along road between Concord and Clayton Comment
  CAS-BOT-BC314862  Hemizonia congesta subsp. luzulifolia Mary L. Bowerman 1938-9-11 3713 Contra Costa Curry Canyon where Sulphur Spring Canyon joins it, Mount Diablo 259 Comment
  CAS-BOT-BC314870  Hemizonia congesta subsp. luzulifolia H. M. Hall 1917-5-27 10314 Contra Costa Fish Ranch, Berkeley Hills Comment
  CAS-BOT-BC314871  Hemizonia congesta subsp. luzulifolia H. M. Hall 1917-5-27 10314 Contra Costa Fish Ranch, Berkeley Hills Comment
  UC691542  Hemizonia congesta subsp. luzulifolia Mary L. Bowerman 1932-5-1 1405 Contra Costa grassy knoll e of creek and just n water tank; Mount Diablo, Alamo Canyon Comment
  POM360296  Hemizonia fitchii E. E. Stanford 1930-9-20 2100 Contra Costa Near Walnut Creek Comment
  RSA94182  Hemizonia luzulifolia F. W. Peirson 1925-11-15 6473 Contra Costa Below Arlington. Comment
  RSA81518  Hemizonia luzulifolia subsp. rudis James I. McMurphy 1909-9-24 s.n. Contra Costa San Ramon. Comment
  SEINET7883353 Image available Hemizonia obconica L. S. Rose 1941-1 41466 Contra Costa 6 mi W of Byron, on Marsh Creek Rd Comment
  POM215122  Hemizonia parryi subsp. congdonii D. D. Keck 1933-11-2 2610 Contra Costa San Ramon, Crow Creek Canyon road, 0.5 miles from turnoff Comment
  CDA15242  Hemizonia pungens G. F. Hrusa, D. Crowe 1998-5-8 14373 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Comment
  SEINET7883354 Image available Hemizonia virgata L. S. Rose 1941-1 41467 Contra Costa 2 mi W of Byron Comment
  CAS-BOT-BC310194  Hesperevax sparsiflora var. sparsiflora Mary L. Bowerman 1933-4-15 1850 Contra Costa Mount Diablo. Canyon south of Arroyo del Cerro Comment
  UC1118396  Hesperevax sparsiflora var. sparsiflora C. M. Belshaw 1936-5-7 2045 Contra Costa 2 mi s of (plot 1) San Ramon; Mt Diablo Quadrangle Comment
  CDA18901  Hesperis matronalis V. Guise 2000-5-22 PDR 031723 Contra Costa on the east side of Tassajara Rd., Danville. 0 Comment
  JEPS111922  Hesperocnide tenella Dean G. Kelch and Andrew G. Murdock 2004-3-5 AGM 213 Contra Costa Martinez - Rankin Open Space. Comment
  CAS-BOT-BC403790  Hesperocnide tenella Peter Rubtzoff 1980-6-2 9451 Contra Costa U.C. Russell Evergreen Tree Farm (on Happy Valley Road ca. 3.5 miles northwest of Mt. Diablo Blvd in Lafayette and ca. 0.5 mile southeast of Bear Creek Road junction Comment
  UC2070646  Hesperocnide tenella Barbara Ertter 2003-3-28 18117 Contra Costa Round Valley Regional Preserve, ca 1 mile west of trailhead. Comment
  JEPS122864  Hesperolinon breweri Adam C. Schneider with Yuri P. Springer 2014-5-16 591 Contra Costa Along hills west of Los Vaqueros Reservoir. Comment
  RSA102173  Hesperolinon breweri M. K. C. 1885-06 s.n. Contra Costa Antioch Comment
  UC1212213  Hesperolinon breweri Rimo Bacigalupi and Alex Hawkes 1951-6-4 3360 Contra Costa saddle between main and n peaks Inner South Coast Ranges, Mount Diablo 883 Comment
  UC692701  Hesperolinon breweri Mary L. Bowerman 1935-5-22 3058 Contra Costa saddle w Twin Peaks ((Eagle Point Ridge)); Mount Diablo 441 Comment
  CAS-BOT-BC167433  Hesperolinon breweri John Thomas Howell 1942-7-19 17047 Contra Costa Serpentine ne. of Deer Flat, Mt. Diablo Comment
  JEPS112075  Heteromeles arbutifolia D. G. Kelch 2003-2-7 03 .38 Contra Costa Franklin Canyon 115 Comment
  JEPS45024  Heteromeles arbutifolia W. L. Jepson 1921-11-19 9516 Contra Costa Mt. Diablo Comment
  SEINET11915755  Heteromeles arbutifolia M. T. Doutt 1930-1 87 Contra Costa Marsh Creek Comment
  CAS-BOT-BC318824  Heterotheca grandiflora A. j. Soares 1925-11-1 s.n. Contra Costa Hayward Comment
  JEPS125919  Heterotheca sessiliflora subsp. bolanderi D. W. Taylor 2001-9-18 17913 Contra Costa Hillslopes above Kirker Pass road, drainage of Kirker Creek, along Nortonville Road directly under high-voltage steel tower electrical transmission lines. Comment
  UC1619993  Heterotheca sessiliflora subsp. bolanderi Barbara Ertter 1991-5-5 9770 Contra Costa s of Pittsburg (s side of Rose Hill above cemetery, Black Diamond Mines Regional Preserve); Black Diamond Mines Regional Preserve, Rose Hill 365 Comment
  JEPS79318  Heterotheca sessiliflora subsp. echioides Edward Lee with Annetta Carter 1935-8-17 1624 Contra Costa Antioch; sand-dunes Comment
  POM180746  Heterotheca sessiliflora subsp. echioides J. T. Howell 1930-7-31 5416 Contra Costa North Berkeley Hills. Comment
  UC2000000 Image available Heterotheca sessiliflora var. bolanderioides J. C. Semple, B. A. Suripto, T. Ahmed 1990-8-16 9339 Contra Costa Charles Tilden Reg. Park, Vollmer Peak. Comment
  UC1034868  Hibiscus lasiocarpos Ira L. Wiggins 1954-9-5 13121 Contra Costa levee along Bethel Isl. Bethel Isl. Comment
  CDA2182  Holcus lanatus D. G. Kelch, A. G. Murdock 2005-6-24 5 .386 Contra Costa Carquinez Strait Region; 5th Street Prairie, Crockett. Comment
  JEPS97580  Holcus lanatus R. D. Stone 1980-7-13 275 Contra Costa Huckleberry Trail Oakland Hills, near Alameda-Contra Costa county line (NE of intersection of Skyline Blvd. and Snake Rd.) 396 Comment
  JEPS111636  Holocarpha heermannii Andrew G. Murdock 2002-7-20 67 Contra Costa Mount Wanda - Martinez; ; ; crest of Mount Wanda on N side of fire road in large meadow 85 Comment
  JEPS13492  Holocarpha heermannii W. L. Jepson 1920-8-12 9078 Contra Costa s slope, towards summit Mount Diablo Comment
  SEINET5782138 Image available Holocarpha heermannii L. S. Rose 1941-10-13 41465 Contra Costa 1 mi E of Walnut Creek 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-BC325846  Holocarpha heermannii Walter Knight 1978-9-16 3271 Contra Costa Briones Regional Park near Maricich Lagoon Comment
  POM179765  Holocarpha heermannii J. T. Howell 1930-9-28 5499 Contra Costa 6.3 miles from Byron on the Marsh Creek Road. Comment
  POM299470  Holocarpha heermannii L. S. Rose 1941-10-13 41465 Contra Costa 1 miles E of Walnut Creek. 50 Comment
  RSA202873  Holocarpha heermannii L. S. Rose 1934-9-9 34462 Contra Costa S slope of Mt. Diablo; 9 miles NE of Danville. Comment
  RSA721867  Holocarpha heermannii Barbara Ertter, Brad Olson, Dianne Lake, Seth Adams 1994-9-11 13096 Contra Costa Chaparral Springs addition to Mt. Diablo State Park, north side of Marsh Creek Road at high point southeast of Clayton. Comment
  UC913078  Holocarpha obconica David D. Keck and J. Clausen 1933-10-27 2566 Contra Costa Vasco Road at junction with Byron Road Comment
  RSA0001317  Holocarpha obconica subsp. autumnalis D. D. Keck, Jens Clausen 1933-10-27 2567 Contra Costa 1.6 miles W. of Byron, 1.4 mi. from junction with Vasco Road. Comment
  RSA739725  Holocarpha obconica subsp. obconica John Dittes 2006-10-26 1415 Contra Costa San Joaquin Valley (foothills near NW edge) 2 air mile S of Marsh Creek Reservoir Gauging Station, 1.6 air mile SW of intersection of Camino Diablo and Vasco Road, Contra Costa Water District's Los Vaqueros Watershed Mitigation. 67 Comment
  CAS-BOT-BC320327  Holocarpha virgata David D. Keck 1933-10-27 2568 Contra Costa 1.6 mi. W. of Byron, 1.4 mi. from junction with Vasco Road Comment
  CAS-BOT-BC324614  Holocarpha virgata H. M. Hall 1930-6-18 12794 Contra Costa Stockton Ranch, south of Antioch Comment
  CAS-BOT-BC324616  Holocarpha virgata R. F. Hoover 1969-8-29 11566 Contra Costa Raymond Road and Ames Street, Livermore Valley Comment
  OBI16037  Holocarpha virgata subsp. virgata Robert F. Hoover 1965-9-24 9648 Contra Costa W of Byron, E of Kellogg Crk Comment
  POM299471  Holocarpha virgata subsp. virgata L. S. Rose 1941-10-16 41467 Contra Costa 2 miles W of Byron. 33 Comment
  UC2029132  Holocarpha virgata subsp. virgata Barbara Ertter with David Gowen and Mike Park 2004-6-13 18372 Contra Costa Black Diamond Mines Regional Preserve, forks of Old Homestead Loop Trail. 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
  RSA0016873  Hordeum brachyantherum H. de Forest 1930-5-7 s.n. Contra Costa Road near Morage. Comment
  JEPS41058  Hordeum brachyantherum subsp. brachyantherum Rimo Bacigalupi and L. R. Heckard 1965-5-11 9087 Contra Costa sw Richmond (Brooks Island, San Francisco Bay); San Francisco Bay, Brooks Island Comment
  CDA9486  Hordeum depressum D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .211 Contra Costa Byron Airport. Comment
  POM181460  Hordeum depressum I. L. Wiggins 1900-4-7 4569 Contra Costa 2 mi. east of Mountain House on road to Byron. Comment
  UC650563  Hordeum depressum Ira L. Wiggins 1930-4-17 4569 Contra Costa E of Mountain House (on road to Byron) Comment
  UCD85869  Hordeum marinum subsp. gussoneanum P. B. Kennedy 1916-5-11 s.n. Contra Costa Richmond District, Grand View Terrace. Comment
  UCD85876  Hordeum marinum subsp. gussoneanum P. B. Kennedy 1929-4-24 s.n. Contra Costa Corner of Franklin Canyon Road near Concord, near Soldiers Monument. Comment
  UC1950126  Hordeum marinum subsp. gussoneanum Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8140 Contra Costa alkali sink W and adjacent to Clifton Court Forebay, ca 15 airmiles SW of Stockton Comment
  SD234021  Hordeum murinum subsp. leporinum Virginia Pinkus Ryder 1964-4-12 142 Contra Costa Mt. Diablo, Walnut Creek. 244 Comment
  UC691150  Horkelia californica subsp. frondosa Mary L. Bowerman 1933-5-16 2996 Contra Costa just s the north boundary of section 25.; russelman Park 396 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
  UC565418  Hypericum perforatum Chas. M. Belshaw 1935-12-27 1418 Contra Costa ridge s. Redwood Canyon; Oakland & Berkeley Hills Comment
  JEPS127045  Hypochaeris glabra Lowell Ahart, Josephine Guardino 2016-4-19 20765 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  UC55118  Hypochaeris glabra H. M. Hall 1901-4-5 1730 Contra Costa Mt. Diablo 527 Comment
  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
  UC1789186  Iris foetidissima Barbara Ertter 2000-5-20 17025 Contra Costa Sibley Volcanic Regional Preserve, Oakland Hills, trail on ridge behind interpretative center. Comment
  UC692079  Isoetes howellii Mary L. Bowerman 1935-7-22 3187 a Contra Costa s. side Meridian Peak (w. end Hidden Pond); Mt. Diablo, Hidden Pond 518 Comment
  CAS-BOT-BC324753  Iva axillaris Morris Halperin 1930-5-20 s.n. Contra Costa Hoffman Ranch, Brentwood Comment
  RSA756246  Jaumea carnosa Barbara Ertter, Elizabeth Neese 1988-10-15 7975 Contra Costa Salicornia marsh west of I-580 in El Cerrito, west side along Rydin Road north of Central Avenue. Comment
  CAS-BOT-BC101879  Juglans californica J. W. Congdon 1894-10-16 s.n. Contra Costa Ft. Mt. Diablo Comment
  CHSC93636  Juglans californica var. hindsii Paul Kirk; Joe Callizo 2001-10-8 9 Contra Costa City of Lafayette Community Park, W side of Las Trampas Creek, 1 m E of backyard property line of home at 615 Burton Rd. 119 Comment
  JEPS112432  Juglans californica var. hindsii D. G. Kelch 2003-8-13 03 .135 Contra Costa Pinole Creek 68 Comment
  CAS-BOT-BC109898  Juncus Walter Knight; Lawrence Heckard; Bert Johnson 1978-9-28 3276 Contra Costa Sierra Nevada. Browns Island, Alder Point. Comment
  JEPS112453  Juncus balticus D. G. Kelch 2005-3-25 05 .73 Contra Costa Hercules - Carbon Carbon Road near Route 4. 50 Comment
  UC1818993  Juncus balticus Barbara Ertter, Mary Bowerman et al. 1995-5-7 14030 a Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, wet ground around small pond west of road in grassy flat. Comment
  UC1601708  Juncus bufonius J. Burtt Davy 1897-9-4 4080 Contra Costa Stege Comment
  CDA39196  Juncus effusus var. pacificus H. R. Van Brocklin 1962-5-21 s.n. Contra Costa H. Van Brocklin prop., 1895 Almond Ave., Walnut Creek. 0 Comment
  CDA2696  Juncus gerardi Barbara Ertter, S. Matson 2003-5-31 18175 Contra Costa Carquinez Strait; Martinez Regional Shoreline along Pickleweed Trail west of Arch Bridge. 0 Comment
  UC1789175  Juncus gerardi Barbara Ertter, Steve Matson 2003-5-31 18175 Contra Costa Martinez Regional Shoreline, brackish marsh along Pickleweed Trail west of Arch Bridge, Comment
  JEPS78616  Juncus lescurii Walter Knight, L. R. Heckard, and Bert Johnson 1978-9-28 3275 Contra Costa South Landing Browns Island Comment
  UC692075  Juncus mexicanus Mary L. Bowerman 1933-4-22 1884 Contra Costa nw end Shell Ridge (s of the highway (Heather Farm)); Mount Diablo Comment
  SEINET3880292  Juncus nevadensis Kaye H. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4979 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough. SE portion of Bethel Slough.; 0 610 Comment
  SEINET3880409  Juncus nevadensis Kaye H. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4980 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough. SE portion of Bethel Slough.; 0 610 Comment
  UC1619922  Juncus occidentalis Barbara Ertter, Brad Olson 1991-11-10 10887 Contra Costa behind yacht harbor (extreme w Richmond); Richmond, Point San Pablo Comment
  UCD35162  Juncus patens Beecher Crampton 1950-7-29 626 Contra Costa 1 mile north of Richmond. Comment
  JEPS112448  Juncus phaeocephalus var. paniculatus A. G. Murdock 2004-5-28 276 Contra Costa Refugio Valley 120 Comment
  JEPS67067  Juncus phaeocephalus var. paniculatus W. L. Jepson 1940-6-5 19936 Contra Costa Richmond Comment
  CDA15284  Juncus phaeocephalus var. phaeocephalus G. F. Hrusa, D. Crowe, R. York 1998-7-17 14722 Contra Costa Sacramento Delta; Antioch-Pittsburg Hwy. at E end of Dow Chemical property. Comment
  JEPS111079  Juncus phaeocephalus var. phaeocephalus Lee Echols 2003-6-2 s.n. Contra Costa N of Lark Drive in SW portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond 15 Comment
  UC1601855  Juncus xiphioides J. Burtt Davy 1897-9-4 4076 Contra Costa Stege Comment
  CAS-BOT-BC80925  Juniperus californica Alice Eastwood 1922-3-17 11079 Contra Costa Mt. Diablo Comment
  JEPS48238  Juniperus californica W. L. Jepson 1918-6-5 7617 Contra Costa North Peak, Mt. Diablo Mt. Diablo, North Peak 822 Comment
  UC1076380  Juniperus californica Herbert L. Mason 1923-11-12 850 Contra Costa middle slopes Mt. Diablo Comment
  UC78  Juniperus californica Edw. L. Greene 1892-6-20 Contra Costa Mt. Diablo Comment
  POM212437  Juniperus californica Joseph A. Ewan 1933-10-15 8038 Contra Costa SW slope of Mt Diablo. 1067 Comment
  RSA123532  Juniperus californica R. C. Wilson 1935-3-29 150 Contra Costa 1 mile southwest of Mt. Diablo Comment
  UC1051219  Justicia carnea N. Floy Bracelin 1942-9-20 2310 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC235875  Keckiella corymbosa A. D. E. Elmer 1903-7-1 4956 Contra Costa Mount Diablo Comment
  NY790275  Keckiella corymbosa A. D. E. Elmer 07 1903 4956 Contra Costa Mt. Diablo Comment
  JEPS70570  Koeleria macrantha W. L. Jepson 1918-6-5 7601 Contra Costa Donner Canyon Mt. Diablo; vicinity of San Francisco Bay, Mt. Diablo 533 Comment
  UC691244  Koeleria macrantha Mary L. Bowerman 1935-5-16 2992 Contra Costa Russelman Park Mount Diablo (just s of the n boundary of section 25 (e of gate)); , Russelman Park Comment
  UC692395  Koeleria macrantha Mary L. Bowerman 1933-5-3 1983 Contra Costa Alder Creek Canyon Mount Diablo; , Alder Creek Canyon 731 Comment
  UC1050315  Kolkwitzia amabilis N. Floy Bracelin 1943-7-4 1584 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS100181  Lactuca serriola A. Langston 2003-8-26 AL 85 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA74883  Lactuca serriola Elroy Robinson 1935-9-14 s.n. Contra Costa Martinez Comment
  CAS-BOT-BC340539  Lactuca serriola A. D. E. Elmer 1903-7-1 4612 Contra Costa Port Costa Comment
  JEPS3931  Lactuca virosa John Thomas Howell 1943-8-22 19310 Contra Costa near head of San Leandro Creek Canyon 243 Comment
  UC1618166  Lactuca virosa Barbara Ertter 1991-3-27 9717 Contra Costa Hillside Natural Area El Cerrito (along path n of Schmidt Lane) Comment
  CAS-BOT-BC340699  Lactuca virosa John Thomas Howell 1943-8-22 19310 Contra Costa Near head of San Leandro Creek Canyon 243 Comment
  CAS-BOT-BC340700  Lactuca virosa John Thomas Howell 1943-8-22 19310 Contra Costa Near head of San Leandro Creek Canyon 243 Comment
  UC912601  Lagophylla ramosissima Herbert L. Mason 1929-9-21 5432 a Contra Costa Marsh Creek road 3 mi above Clayton (summit of grade) Comment
  UC14012  Lastarriaea coriacea Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  JEPS105733  Lastarriaea coriacea David Gowen 2004-5-1 56 Contra Costa Lime Ridge Open Space. Ridge trail in the north section of the park and south of the water tank. Comment
  UC1118939  Lasthenia californica subsp. californica C. M. Belshaw 1936-5-12 2111 Contra Costa 3.7 mi ene Tassajero; Mt. Diablo Quad., plot 31 Comment
  UC1142637  Lasthenia conjugens Edw. L. Greene 1887-4-17 Contra Costa Antioch Comment
  UC33073  Lasthenia conjugens Edw. L. Greene 1887-4-17 Contra Costa Antioch Comment
  CAS-BOT-BC353334  Lasthenia fremontii K. Curran April (Year not stated). s.n. Contra Costa Suisun. Comment
  CAS-BOT-BC353336  Lasthenia fremontii Peter H. Raven; H. L. Mason; R. Ornduff; et al. 1957-4-4 10587 Contra Costa Vernal flats 3.0 miles S of Byron. Comment
  UC1051497  Lasthenia fremontii Herbert L. Mason 1952-4-14 Contra Costa 3.5 mi s Byron Comment
  POM55152  Lasthenia fremontii C. F. Baker 1903-4-27 2867 Contra Costa Byron. Comment
  CAS-BOT-BC352929  Lasthenia glaberrima Albert Kellogg date not specified s.n. Contra Costa Antioch Comment
  CAS-BOT-BC352771  Lasthenia glabrata subsp. glabrata John Thomas Howell 1933-5-14 11240 Contra Costa St. Mary's College Comment
  JEPS17268  Lasthenia glabrata subsp. glabrata R. F. Hoover 1936-4-16 974 Contra Costa e slope Bald Peak Comment
  JEPS33979  Lasthenia glabrata subsp. glabrata W. L. Jepson 1925-4-26 10686 Contra Costa in Black Hills Mt. Diablo, Black Hills Comment
  SBBG122952  Lasthenia glabrata subsp. glabrata B. Ertter, C. Thayer 1993-5-7 11705 Contra Costa ca. 0.5 mi N of Vollmer Peak, East Bay Municpal Utilities District land E of Tilden Park 457 Comment
  UC1301065  Lasthenia gracilis Helen K. Sharsmith 1963-4-7 5290 Contra Costa e side Kirker Pass Road (w of Antioch); San Francisco Bay Region 152 Comment
  UC566714  Lasthenia gracilis H. L. Mason 1929-3-31 5154 Contra Costa along San Joaquin River; , Antioch Comment
  UC62988  Lasthenia gracilis H. M. Hall 1901-4-5 1744 Contra Costa lower slopes Mt. Diablo Comment
  POM301015  Lasthenia microglossa Mary L. Bowerman 1932-3-27 1141 Contra Costa Mitchell Rock. Comment
  SD241758  Lasthenia microglossa Mary Bowerman 1979-4-10 Contra Costa Mount Diablo. Mitchell Canyon opposite upper end of old reservoir. On steep bank above fire road. Comment
  UC1363828  Lasthenia microglossa Robert Ornduff 1958-3-22 4807 Contra Costa ca 0.75 mi sw end Mitchell Canyon Road (base of Mitchell Rock, above Mitchell Creek); Mount Diablo, Mitchell Creek, Mitchell Rock Comment
  UC30474  Lasthenia minor Jos. Burtt Davy 1895-4-7 937 Contra Costa Antioch Comment
  JEPS81844  Lasthenia platycarpha Rimo Bacigalupi with Paul C. Hutchinson and John Weiler 1959-3-10 6967 Contra Costa 1 mi se Byron (in fields e of Byron road) 6 Comment
  UC1314947  Lasthenia platycarpha R. F. Hoover 1967-4-28 10505 Contra Costa Byron Hot Springs Comment
  UCD106240  Lathyrus jepsonii var. californicus R. N. Raynor 1939-4-15 s.n. Contra Costa Near San Ramon. Comment
  UC15364  Lathyrus vestitus Ivar Tidestrom 1893-4-15 Contra Costa Sheep Island Comment
  JEPS55365  Lathyrus vestitus var. vestitus H. L. Mason 1931-4-4 Contra Costa se of Mt. Diablo; Upper Marsh Creek Comment
  JEPS64865  Lathyrus vestitus var. vestitus W. C. Blasdale 1897-5-1 Contra Costa Point Isabel Comment
  UC15372  Lathyrus vestitus var. vestitus W. L. Jepson Contra Costa Fish Ranch Comment
  RSA720810  Lavatera assurgentiflora Barbara Ertter 1994-6-6 12822 Contra Costa Point Isabel in south Richmond Comment
  RSA666403  Lavatera cretica Barbara Ertter 1991-5-12 9813 Contra Costa Point Isabel Regional Shoreline in SW corner of El Cerrito, on San Francisco Bay. Comment
  UC407377  Layia chrysanthemoides Ira L. Wiggins 1930-4-17 4572 Contra Costa .25 mi s Byron Comment
  UC912574  Layia chrysanthemoides Herbert L. Mason 1929-3-31 5151 Contra Costa Sacramento River at Antioch; Sacramento River Comment
  POM53189  Layia chrysanthemoides C. F. Baker 1903-4-27 2903 Contra Costa Byron. Comment
  CAS-BOT-BC321746  Layia gaillardioides Mary L. Bowerman 1935-4-17 2847 Contra Costa Mt. Diablo. North Road, 2 mi from North Gate, ridge west of chaparral. 335 Comment
  CAS-BOT-BC321764  Layia gaillardioides Alice Eastwood 1915-5-30 4485 Contra Costa Mt. Diablo Comment
  JEPS13505  Layia gaillardioides Robert F. Hoover 1936-4-16 973 Contra Costa e slope of Bald Peak e of Tilden Regional Park; San Pablo Ridge Comment
  UC589705  Layia gaillardioides Douglas Horn 1938-4-24 61 Contra Costa w of Orinda 274 Comment
  UCSC000762  Layia gaillardioides H. M. Hall 1900-5-24 s.n. Contra Costa Mt. Lawson Comment
  CAS-BOT-BC321078  Layia glandulosa Alice Eastwood; John Thomas Howell 1936-4-19 2150 Contra Costa Antioch sand hills Comment
  UC30627  Layia glandulosa The Postmaster 1900-3-24 Contra Costa Oakley Comment
  UC30632  Layia glandulosa J. Burtt Davy 1895-4-7 878 Contra Costa Antioch Comment
  UC761860  Layia glandulosa R. F. Hoover 1935-3-10 315 Contra Costa Antioch Comment
  CAS-BOT-BC321085  Layia glandulosa Brandegee no date on sheet s.n. Contra Costa Antioch Comment
  UC202677  Layia glandulosa unknown 1889-4-15 Contra Costa Comment
  CAS-BOT-BC327245  Layia hieracioides M. K. Curran 1884-1-1 s.n. Contra Costa Plants of Mount Diablo. South of Turtle Rock, pool east of main pond: In belt of Eleocharia palustris. Comment
  CAS-BOT-BC327248  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
  CAS-BOT-BC327250  Layia hieracioides Mary L. Bowerman 1933-5-3 1969 Contra Costa Mt. Diablo, Due south of summit 2400'; commoner toward saddle (2400'). 731 Comment
  CAS-BOT-BC370664  Layia platyglossa Alice Eastwood 1921-4-18 10279 Contra Costa Antioch Comment
  CAS-BOT-BC377910  Layia platyglossa James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC377911  Layia platyglossa Lewis S. Rose 1933-4-17 33093 Contra Costa Antioch Comment
  UC30670  Layia platyglossa Edw. L. Greene 1892-6-20 Contra Costa Mount Diablo Comment
  CAS-BOT-BC370666  Layia platyglossa H. M. Hall 1901-4-5 1750 Contra Costa Mt. Diablo near summit Comment
  CAS-BOT-BC274327  Leersia oryzoides Malcom A. Nobs 1948-9-23 681 Contra Costa Rock Slough, 7 miles south of Kingston Comment
  CDA9564  Lemna gibba D. G. Kelch 2007-6-17 7 .463 Contra Costa Carquinez Strait; Fernandez Ranch, Muir Land Trust. Franklin Canyon. 0 Comment
  UC2028381  Lemna minor Barbara Ertter 1998-6-20 16244 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Bob Pond at Old Borges Ranch Comment
  POM181451  Lemna minuta I. L. Wiggins 1930-4-18 4607 Contra Costa Jersey Island. Comment
  UC2027751  Lemna minuta Barbara Ertter 1996-11-24 15412 Contra Costa Southwest side of Mount Diablo, streamlet east of Macedo Ranch trailhead. Comment
  UC691410  Lepechinia calycina Mary L. Bowerman 1938-5-28 3638 Contra Costa Mount Diablo North Road 5.4 miles from North Gate 457 Comment
  JEPS21356  Lepidium dictyotum var. acutidens J. Burtt Davy May 1898 Contra Costa Livermore Valley Mount Diablo Region Comment
  CAS-BOT-BC89717  Lepidium latifolium Walter Knight; Harry Reeves 1979-8-21 3411 Contra Costa East of reservoir. Contra Loma Regional Park, Antioch. 22 Comment
  UC2070650  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
  POM300576  Lepidium latipes Mary L. Bowerman 1933-4-15 1846 Contra Costa Canyon S of Arroyo del Cerro Comment
  CAS-BOT-BC89890  Lepidium nitidum Alice Eastwood 1914-3-14 3766 b Contra Costa Byron Springs. Comment
  CHSC22760  Lepidium nitidum Robert A. Schlising 1962-4-7 2146 Contra Costa Coast Ranges. Along roads and highways near Antioch Reservoir. Comment
  UC1157922  Lepidium nitidum Olive Dyer 1937-3-6 214 Contra Costa upper end Wildcat Canyon Comment
  UC517997  Lepidium nitidum Lewis S. Rose 1933-3-29 33045 Contra Costa Pittsburg Comment
  CAS-BOT-BC89895  Lepidium nitidum Lewis S. Rose 1933-3-10 33014 Contra Costa Brentwood. Comment
  RSA34732  Lepidium nitidum R. C. Rollins 1946-3-25 3044 Contra Costa Western slope of Mount Diablo. Comment
  JEPS111855  Lepidium nitidum var. nitidum D. G. Kelch 2003-2-7 03 .37 Contra Costa Franklin Canyon 115 Comment
  SEINET12006190  Lepidium oblongum H. M. Hall 1901-1 1741 Contra Costa Mt. Diablo, region of San Francisco Bay Comment
  JEPS111856  Lepidium strictum Dean G. Kelch and Andrew G. Murdock 2003-3-21 DGK 03 .044 Contra Costa Martinez-West: Ozol Rock and Scenic Drive. Comment
  POM300972  Leptosiphon androsaceus Mary L. Bowerman 1933-4-15 1861 Contra Costa Second ridge southeast of Arroyo del Cerro Comment
  UC2028992  Leptosiphon androsaceus Barbara Ertter 2000-5-14 17003 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
  UC2027726  Leptosiphon bicolor Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15506 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  UC1949269  Leptosiphon ciliatus Barbara Ertter 1991-5-5 9781 Contra Costa Black Diamond Mines Regional Preserve S of Pittsburg, ridge E of Coal Canyon; N-facing slope Comment
  UCD32383  Leptosiphon ciliatus Beecher Crampton 1950-4-22 527 Contra Costa Contra Costa County, above Judsonville, south of the old Empire Mine around top and slopes of hills. 182 Comment
  CHSC40750  Leptosiphon grandiflorus J. G. Lemmon 1938-6-14 12094 Contra Costa Mount Diablo. Comment
  RSA114063  Leptosiphon liniflorus H. L. Mason 1952-4-14 14265 Contra Costa 3.5 miles S of Byron Comment
  UCD118881  Leptosiphon liniflorus J. M. Tucker 1963-4-12 3686 Contra Costa on west side of Holey Road, 3 miles southeast of Byron. Comment
  UC2027920  Leptosiphon pygmaeus subsp. continentalis Barbara Ertter, Dan Norris 2001-4-8 17582 Contra Costa Lime Ridge Open Space east of Walnut Creek, high part of main ridge. Comment
  UC87925  Lessingia glandulifera K. Brandegee 1883-1 Contra Costa Antioch Comment
  JEPS20320  Lessingia pectinata var. tenuipes Lewis S. Rose 1955-10-17 55185 Contra Costa Antioch 15 Comment
  RSA39870  Lessingia pectinata var. tenuipes P. A. Munz 1947-10-8 12202 Contra Costa Sand dunes east of Antioch 8 Comment
  UC761928  Lessingia pectinata var. tenuipes R. F. Hoover 1940-11-23 4696 Contra Costa 2 mi w Byron Comment
  RSA107412  Lessingia pectinata var. tenuipes L. S. Rose 1955-10-17 55185 Contra Costa Antioch 15 Comment
  JEPS25155  Leymus X multiflorus G. Thomas Robbins with John Weiler 1959-5-23 4026 Contra Costa Brooks Island San Francisco Bay, Richmond (slopes on w side) Comment
  RSA0026157  Leymus X multiflorus Barbara Ertter 2000-7-29 17448 Contra Costa Lower Donner Canyon just above Donner Cabin site, on north side of Mount Diablo. 213 Comment
  CDA32469  Leymus condensatus A. A. Beetle 1941-6-24 1751 Contra Costa Point Richmond on San Francisco Bay. 0 Comment
  RSA108330  Leymus triticoides Frank W. Gould 1941-5-16 1298 Contra Costa In roadside ditch, 1/2 mile east of Lafayette on C.S. Highway 24. Comment
Read comments Nov 1 2011
  RSA108362  Leymus triticoides Frank W. Gould 1941-5-6 1286 Contra Costa 2.3 miles from Walnut Creek on Danville road. Comment
  SEINET3840826  Leymus triticoides Unknown 2006-6-23 6 .321 Contra Costa West Valona, West of the Zampa Bridge above San Pablo avenue, along a small stream draining north into the Western end of the Carquinez Strait 91 Comment
  UC692427  Leymus triticoides Mary L. Bowerman 1935-6-28 3159 Contra Costa Inner Black Hills w meridian (flat on n side); Mount Diablo Comment
  JEPS111522  Ligustrum sinense D. G. Kelch 2005-5-5 05 .207 Contra Costa Point Pinole - Giant Marsh Giant Salt Marsh 3 Comment
  UC692007  Lilium pardalinum Mary L. Bowerman 1935-6-21 3144 Contra Costa e fork Arroyo del Cerro; Mount Diablo 289 Comment
  JEPS25359  Limnanthes douglasii subsp. rosea Rimo Bacigalupi with Paul C. Hutchison and John Weiler 1959-3-19 6971 Contra Costa junction of Holey Road and Byron Road (about 2.9 mi se of Byron) 4 Comment
  UC1949286  Limnanthes douglasii subsp. rosea Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 Contra Costa sink W and adjacent to Clifton Court Forebay, ca 15 airmiles SW of Stockton Comment
  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
  SEINET1909954  Limnanthes douglasii var. rosea Barbara Ertter, Jim Kokerst, Dave Magney 1989-1 8115 Contra Costa San Diendo Co.: Black Mt. N Romona along clevland NF Rd 11S04 2.3 mi from Pamo Valley Rd, roadcut. 457 Comment
  CDA33335  Limnobium laevigatum Paul Ryan/Alan Hyde 2010-10-4 PDR# 1596381 Contra Costa Near Rio Vista; tidal waterway, 200 yards from deep water channel 0 Comment
  CDA7773  Limnobium laevigatum Dan Darling 2007-12-13 PDR# 1426144 Contra Costa Antioch, Decker Island 0 Comment
  UCD170113  Limnobium laevigatum R. Breckenridge; K. Filippini 2010-10-1 s.n. Contra Costa Sacramento/San Joaquin Delta. Bradford Island. Comment
  UCD35164  Limonium californicum Beecher Crampton 1950-8-5 632 Contra Costa San Pablo Canal, NW of Richmond. Comment
  CDA39643  Limonium sinuatum D. G. Kelch 2011-10-23 11 .840B Contra Costa Carquinez Strait Region; Martinez Waterfront Park. Comment
  UCD33426  Linanthus Beecher Crampton 1968-3-27 8232 Contra Costa SE corner of County, ca. 3.5 miles south of Byron. Comment
  JEPS99519  Linanthus androsaceus Mary Bowerman 1977-5-29 Contra Costa Mount Diablo. Russellmann Park. Comment
  UC205676  Linanthus dichotomus Chesnut and Drew 1889-4-16 Contra Costa Clayton Comment
  UC1051315  Linaria purpurea N. Floy Bracelin 1941-6-22 1412 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  RSA468227  Lithophragma affine subsp. affine H. de 1930-4-6 s.n. Contra Costa [No locality information provided] Comment
  CAS-BOT-BC435650  Lithophragma heterophyllum John Thomas Howell 1926-3-7 1660 Contra Costa Mt. Diablo near toll gate Comment
  UC2031413  Lobularia maritima Barbara Ertter with David Gowen 2006-4-14 18666 Contra Costa Lime Ridge Open Space (City of Concord) at NW foot of Mt Diablo, grassland along Ohlone Trail SE of Ygnacio Valley Road Comment
  UC912409  Logfia filaginoides Herbert L. Mason 1928-4-29 4426 Contra Costa Mount Diablo Comment
  UC2028310  Logfia filaginoides Barbara Ertter, Susan D'Alcamo 1998-6-12 16167 Contra Costa North Peak Trail from Devil's Elbow on SE side of Mount Diablo summit. Comment
  CAS-BOT-BC342346  Logfia gallica H. L. Mason 1928-4-26 4386 Contra Costa Berkeley-Oakland Hills Comment
  UC769868  Lolium multiflorum R. F. Hoover 1937-5-14 2107 Contra Costa Franklin Creek valley Comment
  POM300593  Lolium temulentum Mary L. Bowerman 1933-5-17 2096 Contra Costa Branch of Curry Canyon due south of Olafsons' barn. Comment
  UC691198  Lolium temulentum Mary L. Bowerman 1935-5-16 3006 Contra Costa e side of North Peak Mount Diablo (behind Gabriel-Hinks'); , (e side of North Peak) 289 Comment
  UCD66671  Lolium temulentum K. Brandegee 1916-5-9 Contra Costa Byron Springs. Comment
  JEPS128781  Lomatium caruifolium Kevin Hintsa 2000-4-6 Contra Costa Mount Diablo State Park, Mitchell Canyon at connector trail between lower section of Black Point Trail and lower White Canyon (on N edge of trail barely W of Black Point Trail's eastern section). Comment
  UC691420  Lomatium dasycarpum subsp. dasycarpum Mary L. Bowerman 1932-2-28 1095 Contra Costa W of Blackberry Spring; Mount Diablo 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
  UC2031434  Lonicera hispidula Barbara Ertter 1991-6-1 10070 Contra Costa Las Trampas Regional Wilderness in hills W of Danville Comment
  CAS-BOT-BC240418  Lonicera hispidula John Thomas Howell 1925-9-12 1433 Contra Costa Oakland Hills Comment
  RSA455187  Lonicera hispidula var. vacillans Thekla Mohr 1917-07 s.n. Contra Costa Mount Diablo Comment
  UCSB24472  Lonicera involucrata McMinn, Howard; Maino, E. 1931-3-9 Contra Costa Leona Canyon Comment
  UC1618284  Lonicera japonica Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10694 Contra Costa opposite Pittsburg Marina (in center of w end of Browns Island n of Pittsburg near confluence of Sacramento and San Joaquin Rivers); Browns Island Comment
  UC1051220  Lonicera pileata f. yunnanensis N. Floy Bracelin 1942-9-27 1183 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS12855  Lonicera subspicata var. denudata Mary L. Bowerman 1932-10-16 1634 Contra Costa ridge e Median Ridge; Mount Diablo, Donner Canyon basin 487 Comment
  JEPS112337  Lotus corniculatus Dean G. Kelch and Andrew G. Murdock 2004-5-7 04 .183 Contra Costa Canada del Cierbo. contra Coasta County, CA. Comment
  UC775175  Lotus denticulatus Herbert L. Mason 1945-5-31 Contra Costa nw of St. Mary's College; Cashion Canyon Comment
  UC15689  Lotus humistratus State Survey 1800-1 1073 Contra Costa Mt. Diablo Range Comment
  JEPS48906  Lotus junceus W. L. Jepson 1945-3-11 27554 Contra Costa Moraga Ridge Comment
  UC1129013  Lotus purshianus var. purshianus C. M. Belshaw 1936-5-13 2123 Contra Costa n of Horse Valley; Mt. Diablo Quad. 121 Comment
  UC692268  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
  UC69634  Lotus scoparius Jos. Burtt Davy 1895-1 Contra Costa Moraga Pass Comment
  JEPS55826  Lotus wrangelianus A. M. Ottley 1920-6-5 779 Contra Costa below Moraga Ridge Comment
  JEPS55832  Lotus wrangelianus W. L. Jepson 1922-5-11 9636 Contra Costa North Berkeley Hills Comment
  UC726775  Lupinus A. A. Heller 1938-4-9 15019 Contra Costa near the w end Antioch Bridge; near the w end of the Antioch Bridge Comment
  UC1970563  Lupinus Donald G. Nelson 1937-4-24 516 Contra Costa in rolling hill country north of Byron; Marsh Creek Road Comment
  CHSC67947  Lupinus albifrons James D. Jokerst 1989-3-31 3077 Contra Costa Rocky hillside E of creek in Brushy Creek Canyon. Comment
  LA205021  Lupinus albifrons J. A. Ewan; 1934-3-10 8645 Contra Costa Wildcat Canyon, 2 mi below Orinda Rd bridge, Comment
  UC127020  Lupinus albifrons var. albifrons W. L. Jepson May 22 1891-May 23 1891 Contra Costa Mt. Diablo 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
  UC127056  Lupinus arboreus Ivar Tidestrom 1893-4-15 Contra Costa Sheep Island Comment
  UC579856  Lupinus arboreus Annetta Carter 1936-4-19 1119 Contra Costa Red Rock; San Francisco Bay, Red Rock Comment
  CHSC21618  Lupinus bicolor Willis Ball 1974-4-21 428 Contra Costa Contra Loma Regional Park. In area #1. On n side of road leading to main parking lot ca. 150 yds e of lot. One yd. n of road. 38 Comment
  JEPS112414  Lupinus bicolor Dean G. Kelch and Andrew G. Murdock 2005-4-15 05 .146 Contra Costa Rodeo Creek; county: Contra Costa; EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump). Comment
  UC1073382  Lupinus bicolor George B. Rossbach 1955-3-20 324 Contra Costa sw base Mt. Diablo; sw base Mt. Diablo Comment
  UC1129392  Lupinus bicolor R. W. Lundh 1933-3-25 220 Contra Costa 1 mi w and 1/2 mi n Lafayette Acalanes Grant; Concord Quad. 213 Comment
  UC1300886  Lupinus bicolor Helen K. Sharsmith 1963-4-7 5292 Contra Costa near Oakley (s of Antioch); , near Oakley 15 Comment
  UC692568  Lupinus bicolor Mary L. Bowerman 1931-3-21 600 Contra Costa e end Rock City Ridge Mount Diablo (Fossil Ridge, Mount Diablo); , Rock City Ridge, Fossil Ridge Comment
  UCD35142  Lupinus bicolor Beecher Crampton 1952-2 498 a-d Contra Costa 1 mile north of Richmond. Comment
  CAS-BOT-BC187863  Lupinus chamissonis Alice Eastwood 1914-2-24 3735 Contra Costa Antioch Comment
  CAS-BOT-BC187856  Lupinus chamissonis John Thomas Howell 1932-9-17 10757 Contra Costa Clay Flats, San Pablo Avenue, Richmond Comment
  POM10925  Lupinus densiflorus var. aureus Chestnut, E. R. Drew 1889-4-18 s.n. Contra Costa Brentwood. Comment
  POM23955  Lupinus densiflorus var. aureus Harriet Ann Walker 1911-7-8 2526 Contra Costa Near Point Isabel, east shore of San Francisco Bay. Comment
  CDA6113  Lupinus formosus D. G. Kelch 2007-5-12 7 .289 Contra Costa Carquinez Strait; Franklin Ridge, S of Hwy 4 at McEwen Rd. Comment
  UC2061498  Lupinus formosus Dean G. Kelch 2016-5-23 16 .124 Contra Costa Carquinez Strait: Hill between Cumming's Skyway & Canada de Cierbo. Comment
  UC692522  Lupinus formosus Mary L. Bowerman 1936-9-9 3538 Contra Costa Sycamore Canyon Mount Diablo (small flat valley e of Forces' house); , Sycamore Canyon 274 Comment
  JEPS112361  Lupinus formosus var. formosus Dean G. Kelch and Andrew G. Murdock 2004-5-28 287 Contra Costa Pinole Peak; County: Contra Costa. Comment
  UC1819006  Lupinus formosus var. formosus Barbara Ertter, Brad Olson, Diane Lake, Seth Adams, et al. 1994-9-11 13095 Contra Costa Chaparral Springs addition to Mt. Diablo State Park, north side of Marsh Creek Road at high point southeast of Clayton,, open slopes between ponds at south foot of ridge, open woodland/ grassland, heavily grazed. 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
  UC1562851  Lupinus microcarpus var. densiflorus Barbara Ertter with Elizabeth Neese 1988-4-24 7450 Contra Costa n of e-w part of Black Diamond Trail sw Antioch (Black Diamond Mines Regional Preserve); Black Diamond Mines Regional Preserve Comment
  UC201012  Lupinus microcarpus var. densiflorus Katharine Brandegee 1918-6-16 Contra Costa near Virgorit Powder Works; near Vigorit Powder Works Comment
  UC201014  Lupinus microcarpus var. densiflorus Katharine Brandegee 1918-6-16 Contra Costa near Virgorit Powder Works; near Vigorit Powder Works Comment
  UC73242  Lupinus microcarpus var. densiflorus Miss Carlotta Case July, 1904 Contra Costa Muir Station Comment
  JEPS65467  Lupinus microcarpus var. microcarpus W. L. Jepson 1921-5-22 9214 Contra Costa Mt. Diablo; Mt. Diablo, s slope 609 Comment
  UC15958  Lupinus microcarpus var. microcarpus A. Eastwood 1894-5-3 Contra Costa Antioch Comment
  UC201022  Lupinus microcarpus var. microcarpus Katharine Brandegee 1918-6-19 Contra Costa Richmond Annex; El Dorado St. Comment
  UC201024  Lupinus microcarpus var. microcarpus Katharine Brandegee June 1918 Contra Costa El Dorado St. Richmond Annex (Richmond Annex); , El Dorado St. Comment
  UC1301168  Lupinus nanus Helen K. Sharsmith 1962-4-18 4960 Contra Costa near Canyon; San Francisco Bay Region 152 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
  SEINET10486146  Lupinus polycarpus Frenkel 1964-3-27 FRENKEL 431 Contra Costa .4 mi n of atsf rr crossing on giant road, richmond. 15 Comment
  JEPS75467  Lupinus succulentus P. F. Yorks 1974-4-6 125 Contra Costa on Hampton Road ca 1.7 km s Bear Creek Road (in Hampton Road Natural Reserve, n of Briones Reservoir); Hampton Road Natural Reserve, n of Briones Reservoir 180 Comment
  UC614849  Lupinus succulentus Beryl O. Schreiber 1932-3-27 153 Contra Costa near Midway; near Midway Comment
  SEINET8057995  Lupinus succulentus H. E. Hodge 1956-4-7 13 Contra Costa Tice Canyon Road in Walnut Creek 61 Comment
  UC2987  Luzula comosa W. H. Brewer 1862-5-23 1148 Contra Costa se Monte Diablo; se of Monte Diablo Comment
  UC72374  Luzula macrantha Harley P. Chandler 1901-3-22 851 Contra Costa Martinez Comment
  CAS-BOT-BC441218  Luzula macrantha Mary L. Bowerman 1933-5-8 2021 Contra Costa Mount Diablo: Fossil Ridge, north face, halfway down to canyon bottom Comment
  CDA9685  Lycopus americanus D. G. Kelch 2002-7-15 2 .004 Contra Costa CA Delta; Old San Joaquin River channel, E of Brentwood. San Joaquin County border. 0 Comment
  UC1607619  Lycopus asper Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, and Amy Hiss 1991-8-18 10691 Contra Costa w. end of Browns Isl. n. of Pittsburg (near confluence of Sacramento & San Joaquin Rivers, opposite Pittsburg Marina); Browns Isl. Comment
  OBI78277  Lythrum californicum D. G. Kelch 1996-10-17 s.n. Contra Costa CA Dept. Food & Ag CDA; Carquinez Strait: Pt. Edith Marsh 1 Comment
  UC692631  Lythrum californicum Mary L. Bowerman 1930-9-27 461 Contra Costa (2 mi by road from North Gate (at trough, take trail to west, follow to fence and go through), Mount Diablo); Mount Diablo Comment
  UC692638  Lythrum hyssopifolia Mary L. Bowerman 1933-8-2 2393 Contra Costa Mount Diablo, Boulevard Spring, by West Road Boulevard Spring; Mount Diablo, Boulevard Spring Comment
  UCD102388  Madia elegans Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. North Peak Road to North Peak. 1000 Comment
  UC89385  Madia exigua Katharine Brandegee May 1885 Contra Costa Antioch Comment
  CAS-BOT-BC342981  Madia gracilis Barrett Anderson 1987-4-30 3499 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD 125 Comment
  CAS-BOT-BC324488  Madia radiata K. Brandegee 1908-4-9 50 Contra Costa Near Antioch Comment
  JEPS41051  Madia sativa Rimo Bacigalupi, and L. R. Heckard 1965-5-11 9076 Contra Costa sw of Richmond (on the w side of Brooks Island, in San Francisco Bay); San Francisco Bay, Brooks Island 6 Comment
  UC1555376  Madia sativa Jerry Powell 1988-6-28 1540 Contra Costa area along railroad west Richmond, Point Molate Comment
  RSA721363  Madia sativa Barbara Ertter, Rich Rabeler 1994-6-18 12838 Contra Costa Pt. Pinole Regional Shoreline at north end of Richmond; northeast corner of park, near jct Marsh Trail and Cook's Point Trail. Comment
  CAS-BOT-BC206242  Malacothamnus fasciculatus H. M. Hall; F. M. Essig 1916-5-30 10131 Contra Costa Mt. Diablo, on the westerly side north of Pine Canyon 290 Comment
  UC2028014  Malacothamnus fasciculatus Barbara Ertter 1997-9-14 15821 Contra Costa Southwest side of Mount Diablo, Wall Point Road at head of Emmons Canyon. Comment
  UC2028245  Malacothamnus fasciculatus Barbara Ertter, Tony Morosco 1998-9-18 16417 Contra Costa West edge Lime Ridge Open Space northwest of Mount Diablo. Comment
  CAS-BOT-BC206329  Malacothamnus fremontii Walter Knight; Irja Knight 1967-4-2 s.n. Contra Costa Nortonville. Comment
  UC961415  Malacothamnus fremontii John Thomas Howell and T. H. Kearney 1950-7-5 26635 Contra Costa Nortonville Comment
  JEPS95241  Malacothamnus hallii Stephen W. Edwards 1988-9-5 Contra Costa Lime Ridge, Walnut Creek Open Space above country club Comment
  UC311568 Image available Malacothamnus hallii H. M. Hall and F. M. Essig 1916-5-30 10131 Contra Costa w side n Pine Canyon; Mt. Diablo; Mt. Diablo, Contra Costa Co. Comment
  UC692693  Malacothamnus hallii Mary L. Bowerman 1932-9-24 1590 Contra Costa Ridge running w from Twin Peak; Mount Diablo 335 Comment
  UC691447  Malacothrix floccifera Mary L. Bowerman 1933-4-25 1908 Contra Costa ridge ese North Peak; Mount Diablo Comment
  POM53214  Malacothrix floccifera C. F. Baker 1903-4-28 2948 Contra Costa Marsh Creek, Mt. Diablo. Comment
  UC2062657  Malva pseudolavatera Barbara Ertter 2003-6-22 18233 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, ca 1/2 air mile east of headquarters, drainage east of River View Loop Trail. Comment
  CAS-BOT-BC8186  Malvastrum howellii John Thomas Howell 1931-5-12 6470 Contra Costa Nortonville Comment
  UC108945  Malvella leprosa Mrs. K. Brandegee 1892-6-8 Contra Costa Antioch Comment
  JEPS81140  Marah fabacea Edward Lee with Annetta Carter 1936-2-9 1747 Contra Costa 5.6 mi from Perkins Canyon road (Marsh Creek Road) Comment
  CDA37959  Marah oregana Andrew Murdock, D. G. Kelch 2005-3-21 391 Contra Costa Carquinez Strait Region; South of Cumming s Skyway & about 1 km east of I-80. Comment
  CHSC28456  Marah oregana Robert A. Schlising 1964-4-2 2667 Contra Costa Berkeley-Oakland Hills. Comment
  CHSC46893  Marah oregana R. A. Schlising 1965-4-6 2780 Contra Costa Berkeley Hills. Comment
  CHSC46930  Marah oregana R. A. Schlising 1964-4-2 2697 Contra Costa Berkeley/Oakland Hills. Comment
  CHSC46931  Marah oregana Robert A. Schlising 1962-7-7 2331 Contra Costa Along Pinehurst Road. Comment
  SEINET5560693  Marah oregana H. S. Gentry 1931-1 58 Contra Costa Collected near Buckle Point, Mount Diablo. Comment
  UC691473  Marrubium vulgare Mary L. Bowerman 1933-8-2 2390 Contra Costa edge of Sheep Camp Spring (by west road) Mount Diablo; , edge of Sheep Camp Spring 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
  CDA29088  Medicago arabica D. G. Kelch 2006-5-7 6 .15 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  JEPS100115  Medicago arabica G. Smick 2003-5-8 GAS 180 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS100116  Medicago polymorpha G. Smick 2003-4-1 GAS 107 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC692278  Medicago polymorpha Mary L. Bowerman 1931-4-4 640 Contra Costa 2 mi by road from west entrance (= North Gate); Mount Diablo Comment
  RSA720797  Melica californica Mary L. Bowerman 1991-5-21 s.n. Contra Costa Mount Diablo. Jim White trail (Deer Flat Road) South side of Juniper-Moses Rock Trail near Deer Flat junction. Comment
  UC1132245  Melica californica C. M. Belshaw 1936-5-8 2051 Contra Costa 1.75 mi sse Mt. Diablo summit; Mt. Diablo Quad. 609 Comment
  CAS-BOT-BC281434  Melica imperfecta Virginia E. Long 1933-6-14 221 a Contra Costa Mt Diablo. On slope SE-E along first W fork from Curry Creek trail 335 Comment
  POM300621  Melica imperfecta Mary L. Bowerman 1935-5-3 2956 Contra Costa Fossil Ridge: Hillside below the Jungle of the Garden Gods. Mount Diablo. 457 Comment
  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
  UC691221  Melica imperfecta Mary L. Bowerman 1932-3-12 1120 Contra Costa Alamo Canyon Mount Diablo (near trail) 365 Comment
  UC767184  Melica imperfecta R. F. Hoover 1941-4-11 4832 Contra Costa Marsh Creek Canyon Comment
  UCD87814  Melica imperfecta Beecher Crampton 1956-5-14 3405 Contra Costa Southern boundary of Mt. Diablo State Park. Comment
  UCD87871  Melica imperfecta P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  JEPS97557  Melica torreyana R. D. Stone 1980-7-13 270 Contra Costa Huckleberry TrailNE of intersection of Skyline Blvd. and Snake Rd. Oakland Hills, near Alameda-Contra Costa county line 396 Comment
  RSA295077  Melica torreyana Robert A. Norris, John L. Inase 1981-4-25 4143 Contra Costa Alongside Abrigo Valley trail, west part of Briones Regional Park (ca. 3 miles NNW Lafayette). 220 Comment
  SEINET1910265  Melica torreyana Barbara Ertter, John Little 1989-1 8111 Contra Costa Hillside Park in El Cerrito, +/- undisturbed vegetation on steep W facing slope Comment
  UC692470  Melica torreyana Mary L. Bowerman 1935-5-16 3013 Contra Costa e side North Peak, Mount Diablo (behind Gabriel-Hinks'); Mount Diablo 289 Comment
  JEPS127091  Melilotus indicus Lowell Ahart, Josephine Guardino 2016-4-19 20801 Contra Costa 1.4 miles northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Spring USGS 7.5' Quad. Comment
  POM181458  Melilotus indicus I. L. Wiggins 1930-4-18 4599 Contra Costa Jersey Island Comment
  UC692281  Melilotus indicus Mary L. Bowerman 1932-5-6 1418 Contra Costa Mitchell Canyon floor Mount Diablo (roadside) 213 Comment
  CAS-BOT-BC344884  Mentha Peter Rubtzoff 1968-9-19 5968 Contra Costa Russellman Park Road, 0.7 miles south of Marsh Creek Road. Comment
  RSA0033935  Mentha spicata var. spicata Barbara Ertter, Mary L. Bowerman 1996-11-1 15394 Contra Costa North base of Mount Diablo, downstream from Mitchell Canyon parking lot. Comment
  JEPS68981  Mentzelia affinis Edward Lee 1935-3-29 1316 Contra Costa s watershed Kirker Creek; Nortonville Comment
  HSC101958  Micranthes californica Nikolaus Gillen, Michelle Bihler 2014-3-20 10 Contra Costa Mount Diablo State Park. Eagle Peak Trail. 649 Comment
  UC593505  Micropus amphibolus G. L. Stebbins Jr. 1936-5-9 1547 Contra Costa e side Wildcat Canyon; Berkeley Hills Comment
  CDA33418  Micropus californicus D. G. Kelch 2011-5-28 11 .542 Contra Costa Carquinez Strait Region.; W of Martinez. N of end of Hillside Pl. Comment
  UC1795021  Micropus californicus R. K. Brummitt and B. Ertter 1998-5-6 19782 Contra Costa Mt. Diablo, NW side, path to Mitchell's Rock 300 Comment
  JEPS40631  Micropus californicus var. californicus W. L. Jepson 1922-5-23 9664 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC348366  Micropus californicus var. californicus Brandegee No date on label s.n. Contra Costa Antioch Comment
  UCSC007192  Microseris Randall Morgan 1989-5-5 1588 Contra Costa Mitchell Cyn trail, W entrance, Mount Diablo Comment
  CHSC67881  Microseris acuminata James D. Jokerst 1989-3-28 3052 Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. Comment
  CAS-BOT-BC348789  Microseris campestris Peter H. Raven; H. L. Mason; R. Ornduff; et al 1957-4-4 10581 Contra Costa Flats 3.0 miles s. of Byron Comment
  UC2027921  Microseris douglasii Barbara Ertter with Dan Norris 2001-4-8 17583 Contra Costa Lime Ridge Open Space east of Walnut Creek, high part of main ridge. Comment
  UC691459  Microseris douglasii subsp. douglasii Mary L. Bowerman 1931-4-4 638 Contra Costa 2 mi by road from North Gate (west entrance); Mount Diablo Comment
  UC691463  Microseris douglasii subsp. douglasii Mary L. Bowerman 1931-4-11 698 Contra Costa toward mouth of Pine Canyon; Mount Diablo Comment
  UC1618256  Microseris douglasii subsp. douglasii Barbara Ertter 1991-5-5 9783 Contra Costa along spur road from Black Diamond Trail on ridge se Coal Canyon (s of Pittsburg); Black Diamond Mines Regional Preserve 426 Comment
  UC2027851  Microseris douglasii subsp. douglasii Barbara Ertter with Stu Garrett 1997-3-29 15527 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  CAS-BOT-BC349093  Microseris douglasii subsp. tenella Mary L. Bowerman 1933-4-15 1847 Contra Costa Mount Diablo. Canyon south of Arroyo del Cerro Comment
  JEPS88684  Microseris douglasii subsp. tenella Edw. L. Greene March, 1889 Contra Costa Byron Comment
  POM181472  Microseris douglasii subsp. tenella I. L. Wiggins 1930-4-17 4560 -a Contra Costa One mile east of Mountain House, on road to Byron. Comment
  POM53413  Microseris lindleyi C. F. Baker 1903-4-28 2832 Contra Costa Marsh Creek, Mount Diablo Comment
  UC691443  Microseris sylvatica Mary L. Bowerman 1935-5-22 3053 Contra Costa canyon at n end Eagle Point ridge (which heads into saddle w of Twin Peaks, near head of canyon); Mount Diablo Comment
  SEINET11602013 Image available Microseris sylvatica K. Brandegee 1907-5-5 s.n. Contra Costa Between Antioch & Marsh Creek Comment
  UC1055920  Mimetanthe pilosa N. Floy Bracelin 1944-9-9 2799 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  CDA41672  Mimulus aurantiacus D. G. Kelch 2005-6-24 5 .383 Contra Costa Carquinez Strait Region; 5th Street Prairie, Crockett. Comment
  UC1613940  Mimulus grandis Charles M. Belshaw 1935-6-24 1019 Contra Costa Sobrante Hills Comment
  SEINET4678015  Mimulus guttatus K. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4954 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough, SE portion of Bethel Slough.; 0 610 Comment
  CAS-BOT-BC151466  Mimulus latidens T. S. Brandegee 1888-5-1 s.n. Contra Costa Antioch Comment
  UC125132  Mimulus latidens Katharine Brandegee 1907-5-5 Contra Costa between Antioch and Marsh Creek Comment
  UCD32387  Mimulus latidens Beecher Crampton 1950-4-22 531 Contra Costa 2 miles south of Antioch, on road from Antioch to Lone Tree Valley, in shallow depression along roadside. 60 Comment
  UC691564  Mimulus rattanii Mary L. Bowerman 1933-6-3 2246 Contra Costa summit Meridian Peak (ridge n of lower junction of one-way roads); Mount Diablo Comment
  SJSU2617  Minuartia douglasii W. E. Ferguson 1942-4-25 Contra Costa E base of Mt Diablo 304 Comment
  UC1607684  Minuartia pusilla Barbara Ertter, Lynne Hosley 1993-4-17 11512 Contra Costa ca 10 air mi n Livermore (hills in lee of Mt. Diablo, edge of outcrop s of Hummingbird trail); Morgan Territory 609 Comment
  CAS-BOT-BC221678  Monardella douglasii A. D. E. Elmer 1903-7-1 4544 Contra Costa Mount Diablo Comment
  UC691409  Monardella douglasii Mary L. Bowerman 1933-6-21 2327 Contra Costa slightly s Bilharan Lodge; Mount Diablo, Donner Canyon Comment
  UC76184  Monardella douglasii Milo S. Baker 1904-6-22 Contra Costa near Hurley's; Mt. Diablo Comment
  RSA0022790  Monardella villosa subsp. subserrata Katherine Brandegee 1907-7-4 s.n. Contra Costa Martinez. Comment
  RSA0034457  Monardella villosa subsp. subserrata Katherine Brandegee 1907-7-4 s.n. Contra Costa Martinez. Comment
  CHSC67994  Monardella villosa subsp. villosa James D. Jokerst 1987-6-16 2915 Contra Costa Livermore Valley, 0.3 mi W of Vasco Rd. and +/- 200 m SW of a dirt track. Comment
  UC2028367  Monardella villosa subsp. villosa Barbara Ertter 1998-6-20 16252 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, N-facing slope above Coyote Creek Comment
  UCR64590  Monolopia gracilens L. S. Rose 1935-5-16 35166 Contra Costa Mt. Diablo 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
  UC691658  Monolopia major Mary L. Bowerman 1933-4-15 1862 Contra Costa second ridge s Arroyo del Cerro (w of outcrop); Mount Diablo 396 Comment
  UC90420  Monolopia major T. S. Brandegee May 1891 Contra Costa Antioch Comment
  JEPS73689  Montia fontana L. R. Heckard with Wm. Hirano and Ted Niehaus 1968-3-5 1758 Contra Costa about 3 mi se of Byron (at junction of Holey Road, along Byron-Bethany Road) 7 Comment
  UCD119532  Myosotis latifolia Terri Williamson 1990-5-22 70 Contra Costa 212 Poshard St. Pleasant Hill. 12 Comment
  CAS-BOT-BC83289  Myosurus minimus Herbert L. Mason 1952-4-14 14264 Contra Costa 3.5 miles south of Byron. Comment
  UC1738083  Myosurus minimus D. E. Stone 1957-2-28 14268 A12 Contra Costa 3 mi S of Byron ( on road to Herdlyn) Comment
  UC407383  Myosurus minimus Ira L. Wiggins 1930-4-17 4580 Contra Costa 1/4 mi s Byron Comment
  CAS-BOT-BC83300  Myosurus minimus Ira L. Wiggins 1930-4-17 4580 Contra Costa 0.25 mile south of Byron. Comment
  UCD96579  Myosurus minimus Roman Gankin 1958-3-8 s.n. Contra Costa ca. 3 miles south of Byron. Comment
  JEPS17886  Myosurus sessilis Rimo Bacigalupi with G. T. Robbins 1956-3-26 5532 Contra Costa about 2 1/2 mi s Byron (just s of S.P.R.R. crossing on rd. to Bethany, near head of Italian Slough) 6 Comment
  UC1101330  Myosurus sessilis Herbert L. Mason 1952-4-14 14263 Contra Costa 3.5 mi s of Byron Comment
  UC1101331  Myosurus sessilis Herbert L. Mason 1952-4-26 14269 Contra Costa 3.5 mi s 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
  HSC104396  Myriophyllum exalbescens M. R. Bell 1950-10-9 Contra Costa Near Concord, from stock pond on farm of E.J. Mangini Comment
  UCR141655  Myriophyllum sibiricum M. R. Bell 1950-10-9 s.n. Contra Costa Near Concord, farm of E.J. Mangini Comment
  UC1777714  Myriophyllum sibiricum M. R. Bell 1950-10-9 Contra Costa near Concord (from stock pond on farm of E. J. Mangini) Comment
  UCD18346  Myriophyllum sibiricum M. R. Bell 1950-10-9 s.n. Contra Costa near Concord, from stock pond on farm of E.J. Mangini. Comment
  UCD170623  Myriophyllum spicatum 1996-10-1 s.n. Contra Costa Martinez, Contra Costa Landscaping. Comment
  JEPS102897  Narcissus tazetta Barbara Ertter 1998-1-25 15910 Contra Costa Back Canyon Road at crossroad S of Donner Canyon trailhead Mount Diablo Comment
  CDA31836  Nassella lepida D. G. Kelch 2008-4-24 8 .062 Contra Costa Carquinez Strait; W of Ozol Rock ~2 km W of Martinez. Comment
  POM301022  Nassella lepida Mary L. Bowerman 1933-5-25 2181 Contra Costa Oyster Ridge, West end of south face 396 Comment
  UC60164  Nassella lepida J. Burtt Davy 1900-3-24 6519 Contra Costa Port Richmond Comment
  UC691272  Nassella lepida Mary L. Bowerman 1935-5-8 2976 Contra Costa spur below Pioneer Camp; Mount Diablo 731 Comment
  UC692413  Nassella lepida Mary L. Bowerman 1932-4-27 1387 Contra Costa canyon w Riggs Canyon (w exposure, s face of mt); Mount Diablo, Oyster Ridge 335 Comment
  UCD87824  Nassella lepida Beecher Crampton 1956-5-14 3422 Contra Costa 2 miles west of Martinez, on road to Crockett. Comment
  CDA1583  Nassella pulchra D. G. Kelch 2002-5-24 2 .021 Contra Costa Carquinez Strait; 5th St. Prairie, Crockett. Comment
  CDA29507  Nassella pulchra D. G. Kelch, Troy MacGregor 2009-5-1 9 .278 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  UCD87434  Nassella pulchra A. A. Beetle 1941-3-29 1718 Contra Costa near Orinda. Comment
  SEINET10811232 Image available Navarretia gowenii D. Gowen 2005-5-25 Gowen 390 Contra Costa Lime Ridge Open Space on N. side. Just SE of one of the quarries. Clay soil. 183 Comment
  UC2042806  Navarretia heterandra Barbara Ertter with Joanne Kerbavaz 2000-8-20 17496 a Contra Costa South side Mount Diablo, across road from Curry Point trailhead. Comment
  JEPS116990  Navarretia nigelliformis subsp. radians David Gowen 2008-4-16 857 Contra Costa West end of Horse Valley. 146 Comment
  JEPS116940  Navarretia nigelliformis subsp. radians David Gowen 2008-4-21 867 Contra Costa South of Antioch, in Contra Loma Regional Park off Frederickson Lane. North, to northwest facing slope just NW of parking area for Black Diamond Mines Regional Preserve. Comment
  UC129840  Navarretia pubescens Katharine Brandegee Jun 1907 Contra Costa between Marsh Creek and Antioch Comment
  UC2042983  Navarretia pubescens Barbara Ertter with Dan Norris 1998-6-18 16216 Contra Costa Rock City area on south side of Mount Diablo, trail to Artist Point Comment
  CAS-BOT-BC233584  Navarretia pubescens John Thomas Howell 1942-7-19 17041 Contra Costa Near Deer Flat, 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
  JEPS87936  Navarretia squarrosa Barbara Ertter with Laura Fujii 1990-7-21 9398 Contra Costa w of Pleasant Hill (near junction of Briones Crest and Spengler trails); Briones Regional Park, Briones Hills 396 Comment
  UCD48667  Navarretia squarrosa B. Crampton 1950-9-22 621 Contra Costa Found in a large stand, vacant lot 1 mile North of Richmond, Contra Costa Co., Calif. Comment
  CAS-BOT-BC7190  Nemophila decumbens M. K. Curran 1883-5-1 s.n. Contra Costa Mt. Diablo Comment
  JEPS49756  Nemophila heterophylla Rimo Bacigalupi, and Alice Howard, and Paul Hutchison 1967-3-29 9220 Contra Costa on w slope Las Trampas Ridge Upper reaches Bolinger Canyon, w slope Las Trampas Ridge (Upper reaches of Bolinger Canyon) 381 Comment
  UC24164  Nemophila heterophylla J. Burtt Davy 1895-4-7 907 Contra Costa Antioch Comment
  UC67124  Nemophila heterophylla Harley P. Chandler 1901-4-5 949 Contra Costa Pine Canyon , Pine Canyon (Mt. Diablo) Comment
  UC67126  Nemophila heterophylla Harley P. Chandler 1901-4-5 985 Contra Costa summit Mt. Diablo Comment
  UC67127  Nemophila heterophylla Harley P. Chandler 1901-3-22 850 Contra Costa between Martinez and Port Costa (Region of San Francisco Bay); , bet Martinez and Port Costa Comment
  UC1818976  Nemophila heterophylla Barbara Ertter 1996-3-30 14561 Contra Costa Albany Hill, northwest corner above ball courts, edge of steep informal path, partial shade of eucalyptus. Comment
  UC691704  Nemophila menziesii Mary L. Bowerman 1931-3-8 557 Contra Costa Mitchell Canyon , Mitchell Canyon (Mount Diablo) 304 Comment
  POM300990  Nicotiana bigelovii Mary L. Bowerman 1936-6-20 3416 Contra Costa Ridge west of Mount Zion, west side. 213 Comment
  UC407031  Nicotiana glauca Ira L. Wiggins 1930-4-18 4604 Contra Costa e end Jersey Island Comment
  UC651281  Nicotiana glauca Ira L. Wiggins 1930-4-18 4604 Contra Costa e end Jersey Island Comment
  UC1952820  Nicotiana quadrivalvis Barbara Ertter with David Gowen 2010-11-17 20698 Contra Costa Mangini acquisition (Save Mount Diablo) between Lime Ridgeand Mount Zion Comment
  JEPS105740  Nicotiana quadrivalvis David Gowen 2004-6-18 124 Contra Costa Lime Ridge Open Space. East of golf course and large quarry area, and just north of Manzanita Trail. 650 ft. elev. Comment
  UC691632  Nuttallanthus texanus Mary L. Bowerman 1938-6-2 3653 Contra Costa Mount Diablo, Dan Cook Canyon, 100 yards n of camp (C.C.C.) Dan Cook Canyon; Mount Diablo, Dan Cook Canyon Comment
  RSA0025334  Oemleria cerasiformis James R. Shevock 2012-8-12 40657 Contra Costa Tilden Regional Park, East Bay Regional Park District. Along Grizzly Peak Trail about midway between the upper and lower trailheads. 448 Comment
  OBI3340  Oemleria cerasiformis Neil Havlik 1969-3-25 308 Contra Costa NE slope of Grizzly Peak 488 Comment
  JEPS111600  Oenanthe sarmentosa A. G. Murdock 2004-6-4 324 Contra Costa Pacheco Marsh 5 Comment
  UCD127743  Oenanthe sarmentosa Walter Knight; Irja Knight et al. 1978-9-5 3222 Contra Costa Browns Island. In marsh south of Sandy Knoll. Comment
  JEPS96237  Oenothera curtiflora Barbara Ertter 1991-9-22 10827 Contra Costa sw El Cerrito (Point Isabel Regional Shoreline); Point Isabel Regional Shoreline Comment
  CAS-BOT-BC171592  Oenothera deltoides subsp. howellii Volney Rattan 1879-1-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC171593  Oenothera deltoides subsp. howellii James McMurphy 1909-5-23 s.n. Contra Costa Antioch Comment
  JEPS716  Oenothera deltoides subsp. howellii W. L. Jepson 1945-10-28 27570 Contra Costa Antioch Sand Hills 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
  RSA144914  Oenothera deltoides subsp. howellii Peter Rubtzoff 1954-9-14 1756 Contra Costa Sand dunes along lower San Joaquin River, east of Antioch. Comment
  UCD17865  Oenothera deltoides subsp. howellii Glen Holstein 2000-6-23 s.n. Contra Costa California. Contra Costa County: Midway between Brentwood and Oakley on west side of Highway 4. Comment
  CDA36713  Olea europaea D. G. Kelch 2010-10-5 10 .417 Contra Costa The Delta; Just east of Antioch bridge. 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
  UC27898  Orobanche uniflora subsp. occidentalis J. Burtt Davy 1895-4-13 1004 Contra Costa Lafayette. Comment
  JEPS121477  Orobanche vallicola Adam C. Schneider 2013-10-12 316 Contra Costa Briones Regional Park, along north side of Beark Creek Trail, about 3/4 mile east of Oak Grove campground. Comment
  JEPS99528  Orobanche vallicola Mary L. Bowerman 1977-6-11 Contra Costa Mount Diablo, Pine Canyon, Castle Rock Park (rest unclear). Comment
  SEINET3821123 Image available Orthocarpus erianthus Lewis S. Rose 1932-3-26 32115 Contra Costa Open hillsides, Nortonville. Comment
  POM181461  Orthocarpus erianthus I. L. Wiggins 1930-4-17 4571 Contra Costa 1/4 mi. S. of Byron. Comment
  SEINET10549722  Orthocarpus purpurascens John T. Middleton 1936-4-10 Middleton 134 D Contra Costa Deer valley. Comment
  UC691807  Osmorhiza berteroi Mary L. Bowerman 1931-3-21 594 Contra Costa Sycamore Canyon Mount Diablo 350 Comment
  UC692362  Osmorhiza brachypoda Mary L. Bowerman 1933-5-17 2108 Contra Costa branch of Curry due s Olafson's barn (near stream bottom); Mount Diablo 289 Comment
  UC2029079  Oxalis corniculata Barbara Ertter 2000-7-16 17401 Contra Costa Lower Pine Creek in Diablo Foothills Regional Park. Comment
  UC2029198  Oxalis pes-caprae Barbara Ertter 2003-2-8 18093 Contra Costa Richmond Field Station (UC-Berkeley) Comment
  UC2028540  Oxalis pes-caprae Barbara Ertter 1998-3-1 15922 Contra Costa Diablo Foothills Regional Park, just south of concrete pad off Castle Rock Trail SW of Castle Rock Recreation Area. Comment
  RSA722062  Panicum capillare Barbara Ertter, Lincoln Constance 1995-6-16 14262 Contra Costa East edge Dow Marsh on west side Antioch Marina, south side San Joaquin River 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
  UC2029172  Panicum dichotomiflorum Barbara Ertter 2000-7-16 17415 Contra Costa Diablo Foothills Regional Park, west end of Northgate Trail behind stables along Little Pine Creek, waste area. Comment
  UCD88473  Parapholis incurva Katharine Brandegee 1923-5-8 s.n. Contra Costa Byron Springs. Comment
  UC2042782  Parietaria judaica Barbara Ertter 1990-5-15 8090 Contra Costa South El Cerrito, north foot of Albany Hill at end of Yosemite Avenue cul-del-sac. Comment
  UC1818892  Parvisedum pentandrum Barbara Ertter, Mary Bowerman et al. 1995-5-7 14058 Contra Costa Three-Springs Creek open north facing slope around rock outcrops (near creek crossing above woods) with seepage. Comment
  JEPS100036  Paspalum dilatatum S. O'Neil 2003-9-16 SEO 46 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC259647  Paspalum dilatatum John Thomas Howell 1954-9-5 30025 Contra Costa Marsh Creek Springs Park Comment
  UC1606289  Paspalum distichum Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10870 Contra Costa just w Antioch (Dow Wetlands Preserve); Dow Wetlands Preserve Comment
  UC573057  Pectocarya pusilla H. L. Mason 1931-4-5 5827 Contra Costa rd between Marsh Creek and Livermore Comment
  UC691634  Pectocarya pusilla Mary L. Bowerman 1933-5-8 2019 Contra Costa near crest Rock City Ridge (n side by rd to camp ground); Fossil Ridge Comment
  JEPS10367  Pedicularis densiflora W. L. Jepson 1918-6-3 7584 Contra Costa Donner Canyon; Mount Diablo 609 Comment
  UC1125723  Pedicularis densiflora R. C. Wilson 1935-2-27 115 Contra Costa 1/2 mi s of Somersville 365 Comment
  UCSB12518  Pedicularis densiflora Grah, Nancy 1962-4-14 Contra Costa 1.1 miles on Tappan Lane north of Tarry Lane, Orinda 243 Comment
  SD234195  Pedicularis densiflora Virginia Pinkus Ryder 1965-2-12 308 Contra Costa Mt. Diablo. 456 Comment
  JEPS65611  Pediomelum californicum F. T. Bioletti May, 1894 Contra Costa Mt. Diablo Comment
  POM118165  Pediomelum californicum H. M. Hall, F. M. Essig, C. C. Hall 1916-5-31 10133 Contra Costa Summit of Mount Diablo. 1170 Comment
  POM161363  Pediomelum californicum Rimo Bacigalupi 1926-4-30 1348 Contra Costa Summit of Mt Diablo. Comment
  UC1874923  Pellaea andromedifolia Ruth Kirkpatrick 2003-3-1 1141 Contra Costa Mount Diablo 396 Comment
  RSA0068497  Pellaea andromedifolia Katie Gallagher, Nick Jensen 2014-4-26 177 Contra Costa Las Trampas Regional Wilderness. 365 Comment
  RSA686787  Pellaea andromedifolia H. de Forest 1930-4-6 s.n. Contra Costa SE of Mortonville. 274 Comment
  RSA686984  Pellaea mucronata Mark Morris 1929-03 14909 Contra Costa Mount Diablo, Contra Costa Comment
  UC1618363  Pennisetum villosum Barbara Ertter, Brad Olson 1993-10-30 12290 Contra Costa w of railroad tracks n of mouth of Pinole Creek (along railroad track, San Pablo Regional Shoreline); San Pablo Regional Shoreline Comment
  JEPS4477  Penstemon centranthifolius G. Thomas Robbins 1940-5-19 324 Contra Costa e Antioch; bordering San Joaquin River e of Antioch Comment
  POM14647  Penstemon centranthifolius C. F. Baker 1903-4-25 2938 Contra Costa Antioch. Comment
  SEINET12320780  Penstemon centranthifolius Unknown 1980-1 3879 Contra Costa Lime Ridge, N end, S of Ygnacio Valley Rd between Walnut Creek & Concord Comment
  UC2028106  Penstemon centranthifolius Barbara Ertter with Christopher Baysdorfer 1998-5-10 16118 Contra Costa Lime Ridge Open Space northwest of Mount Diablo. 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
  SBBG122848  Pentachaeta alsinoides B. Ertter, L. Schulteis 1995-4-27 14006 Contra Costa end of Arbolado Drive, Lime Ridge open space NW of Mt Diablo 121 Comment
  RSA93286  Pentachaeta exilis Alice Eastwood, J. T. Howell 1936-4-19 2137 Contra Costa Nortonville. Comment
  SEINET3873573  Pentagramma triangularis Clayton Newberry 1994-4-30 7252 Contra Costa Mount Diablo State Park, trail from Mitchell Cn. Prkng to Donner Cr.; 0 900 Comment
  JEPS112050  Pentagramma triangularis subsp. triangularis D. G. Kelch 2004-3-12 04 .22 Contra Costa Pinole Valley Hillside and canyon above Wright Road. Off of Pinole Valley Road. Contra Costa County, CA 130 Comment
  UC1948934  Pentagramma triangularis subsp. triangularis William J. Ferlatte, L. Maynard Moe 1970-4-27 1240 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC691889  Perideridia californica Mary L. Bowerman 1933-4-26 1930 Contra Costa Perkins Canyon Mount Diablo (between main e ridge of North Peak and ridge to its south, by edge of stream) 518 Comment
  UC692261  Perideridia californica Mary L. Bowerman 1933-6-20 2329 Contra Costa edge of stream <a> little above Bilharan Lodge; Mount Diablo, Donner Canyon Comment
  CDA38511  Perideridia kelloggii D. G. Kelch 2004-7-9 4 .296 Contra Costa Carquinez Strait Region; Crockett - Carquinez Scenic Drive. East of Crockett West of Bull Valley SA. Comment
  UC1606429  Perideridia kelloggii Barbara Ertter, Brad Olson 1993-8-8 12203 Contra Costa sw San Ramon; Bishop Ranch Regional Open Space Comment
  CAS-BOT-BC418831  Persicaria hydropiperoides Virginia I. Dains; Walter Knight 1986-8-8 5473 Contra Costa Jct Rock S1 & Werner Cut Comment
  RSA428314  Phacelia Alice Eastwood 1931-5-30 18617 Contra Costa Oak Spring Comment
  JEPS1454  Phacelia breweri W. L. Jepson 1891-5-24 21009 Contra Costa Mt. Diablo Comment
  UC24303  Phacelia breweri W. H. Brewer 1058 Contra Costa Mount Diablo; ; Mt. Diablo Comment
  UC691690  Phacelia breweri Mary L. Bowerman 1933-5-2 1953 Contra Costa below Pioneer Camp; Mount Diablo 762 Comment
  UC735070  Phacelia breweri Lincoln Constance, T. Morley, R. H. Shan, and W. H. Wagner 1946-4-26 3034 Contra Costa below Devil's Pulpit; Mount Diablo, Devil's Elbow 1127 Comment
  CDA1102  Phacelia californica D. G. Kelch, A. G. Murdock 2005-5-1 5 .189 Contra Costa Carquinez Strait; Crockett; Edwards Canyon. Comment
  JEPS2225  Phacelia californica W. L. Jepson 1896-5-31 21044 Contra Costa Gum Grove Reservoir to Wild Cat Creek; Berkeley Hills Comment
  JEPS2229  Phacelia californica R. F. Hoover 1938-2-21 2753 Contra Costa Point Richmond Comment
  JEPS41060  Phacelia californica Rimo Bacigalupi and L. R. Heckard 1965-5-11 9085 Contra Costa in bay sw Richmond; San Francisco Bay, Brooks Island 30 Comment
  UC671750  Phacelia californica Lincoln Constance 1940-3-16 2524 Contra Costa margin of San Francisco Bay Point Richmond 15 Comment
  CHSC21610  Phacelia ciliata Willis Ball 1975-2-23 450 Contra Costa Contra Loma Regional Park. In area #2. On s side of hill ca. 40 yds w of boat ramp at w side of lake. 60 Comment
  UC35531  Phacelia ciliata var. ciliata Chesnut and Drew 1889-4-8 Contra Costa Summerville Comment
  JEPS2366  Phacelia distans Virginia Bailey 1939-5-3 Contra Costa near summit Mt. Diablo Comment
  JEPS2385  Phacelia distans Mary L. Bowerman 1930-6-10 300 Contra Costa Meridian Peak summit Mount Diablo Comment
  UC727775  Phacelia distans Milo S. Baker 1946-4-20 11333 Contra Costa summit of hwy s Clayton Comment
  CAS-BOT-BC6694  Phacelia distans var. australis Charles Fuller Baker 1903-4-28 2806 Contra Costa Antioch Comment
  JEPS2353  Phacelia divaricata W. L. Jepson 1891-6-9 21021 Contra Costa near Berkeley (e side of hills); Oakland Hills, Fish Ranch Comment
  UC672340  Phacelia douglasii Herbert L. Mason 1929-3-31 5161 Contra Costa dunes along river near Antioch; San Joaquin River Comment
  JEPS2162  Phacelia imbricata subsp. imbricata W. L. Jepson 1923-6-10 9989 Contra Costa Upper Marsh Creek Mt. Diablo Comment
  UC2027758  Phacelia imbricata subsp. imbricata Barbara Ertter with Holly Forbes 1997-4-20 15559 Contra Costa North side of Mount Diablo, rocky outcrop north of Twin Peaks. Comment
  CAS-BOT-BC154329  Phacelia phacelioides H. M. Hall; F. M. Essig 1916-5-31 10135 Contra Costa Mount Diablo 1140 Comment
  CAS-BOT-BC154335  Phacelia phacelioides L. R. Abrams 1921-5-25 8016 Contra Costa Mt. Diablo on road to summit Comment
  UC691702  Phacelia suaveolens Mary L. Bowerman 1933-5-11 2078 Contra Costa Inner Black Hills: West ridge with burned Pinus attenuata. Exposure south or southwest. Comment
  UC2070461  Phacelia tanacetifolia Barbara Ertter with Steve Matson 2003-3-15 18105 Contra Costa Black Diamond Mines Regional Preserve, on SW side of Rose Hill. Comment
  POM301848  Phalaris lemmonii Mary L. Bowerman 1934-4-21 2533 Contra Costa Muir Area Comment
  POM300721  Phalaris minor Mary L. Bowerman 1932-4-27 1402 Contra Costa Oyster Ridge, south face , canyon west of Riggs Canyon 351 Comment
  UCD89357  Phalaris paradoxa Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  UC908774  Phlox gracilis R. F. Hoover 1935-3-10 313 Contra Costa Antioch Comment
  UC1078910  Phoradendron macrophyllum Job Kuijt 1957-11-3 1439 Contra Costa 3 mi. s. of Wildcat Picnic area turn-off Mt. Diablo 548 Comment
  CAS-BOT-BC141122  Phoradendron serotinum subsp. macrophyllum L. R. Abrams 1916-7-29 6307 Contra Costa Walnut Creek Comment
  CAS-BOT-BC141123  Phoradendron serotinum subsp. macrophyllum Mary L. Bowerman 1931-2-22 520 Contra Costa Mount Diablo. Sycamore Canyon, head of E fork Comment
  UC6099  Phoradendron villosum J. Burtt Davy 1895-4-7 911 Contra Costa Antioch Comment
  CAS-BOT-BC202274  Pickeringia montana var. montana Mary L. Bowerman 1931-5-2 793 Contra Costa Mount Diablo. North end of Eagle Point ridge Comment
  UC1129854  Pickeringia montana var. montana R. W. Lundh 1932-8-27 149 Contra Costa 1 1/2 mi w Cave Point; Mt. Diablo Quadrangle 487 Comment
  CAS-BOT-BC202276  Pickeringia montana var. montana Mary L. Bowerman 1933-2-4 1690 Contra Costa Mount Diablo. Flat east of Meridian-North Peak divide 822 Comment
  UCD48018  Picrasma quassioides Ellen Dean; Petra Unger 2005-7-19 2700 Contra Costa Contra Costa Water District land, Byron Tract, just S of Hwy 4, along Old River, on the east bank. 1 Comment
  SBBG56314  Pilularia americana K. Brandegee 1909-4-24 Contra Costa Briones Rd, between Antioch and Marsh Crk Comment
  JEPS46917  Pinus attenuata W. L. Jepson 1908-2-23 2984 Contra Costa Moraga Ridge Comment
  JEPS48223  Pinus attenuata H. M. Wheeler 1944-1-16 Contra Costa Oakland Hills Moraga Ridge; , Moraga Ridge Comment
  SEINET3871793  Pinus attenuata James K. Detling 1963-2-15 4 Contra Costa On Flicker Ridge Trail near Moraga.; 0 107 Comment
  CAS-BOT-BC78443  Pinus contorta subsp. murrayana H. M. Hall; H. P. Chandler 1900-7-1 730 Contra Costa South Fork of San Joaquin River Comment
  UC1051353  Pinus coulteri N. Floy Bracelin 1941-12-29 1835 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  SJSU1345  Pinus muricata A. W. Jacobs 1953-4-26 Contra Costa Tilden Regional Park Botanic Garden, E of Berkeley Comment
  CDA23630  Pinus radiata D. G. Kelch 2007-9-8 7 .578 Contra Costa Carquinez Strait; Pinole Valley Park. Comment
  CDA31159  Pinus radiata D. G. Kelch 2008-9-2 8 .306 Contra Costa Carquinez Strait.; Pinole Valley Park. Comment
  JEPS48209  Pinus sabiniana W. L. Jepson 1906-10-12 1750 Contra Costa Pine Canon Mt. Diablo, Pine Canon Comment
  CAS-BOT-BC72776  Pinus sabiniana Mary L. Bowerman 1933-5-10 2070 Contra Costa Mount Diablo, one hundred feet below Muir Area. Comment
  CAS-BOT-BC137272  Piperia elegans John Thomas Howell 1942-8-23 17862 Contra Costa Field redacted by CAS, contact the data manager for more information Comment
  CDA34979  Pistacia atlantica Barbara Ertter, Dan Norris 2001-4-8 17603 Contra Costa Lime Ridge Open Space, main pit of west quarry area north of the adjacent golf course. Comment
  UC2061504  Pittosporum undulatum Dean G. Kelch 2016-5-27 16 .135 Contra Costa Miller-Knox Hill. Comment
  JEPS127046  Plagiobothrys Lowell Ahart, Josephine Guardino 2016-4-19 20770 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
  JEPS60914  Plagiobothrys acanthocarpus Edw. L. Greene 1889-3-24 Contra Costa near Byron Comment
  UC2027919  Plagiobothrys bracteatus Barbara Ertter, Dan Norris 2001-4-15 17614 Contra Costa West side Mount Diablo, east end Stonegate Trail. 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
  JEPS61038  Plagiobothrys humistratus E. L. Greene 1889-3-23 Contra Costa Byron Comment
  UC1618196  Plagiobothrys leptocladus Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8129 Contra Costa ca. 15 air miles s.w. Stockton (w. and adjacent to Clifton Court Forebay); s.e. Contra Costa Co. Comment
  JEPS111847  Plagiobothrys nothofulvus D. G. Kelch 2005-3-25 05 .86 Contra Costa Pinole Peak Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak 250 Comment
  UC573079  Plagiobothrys stipitatus var. micranthus H. L. Mason 1929-3-31 5144 Contra Costa Briones Valley Comment
  UC765574  Plagiobothrys stipitatus var. micranthus R. F. Hoover 1937-5-14 2121 Contra Costa Byron Hot Springs Comment
  SD211568  Plagiobothrys stipitatus var. micranthus Barbara Ertter, Jim Jokerst and Dave Magney 1989-4-5 8126 Contra Costa Alkalai sink West and adjacent to Clifton Court Forebay, circa 15 airmiles Southwest of Stockton Comment
  UC573066  Plagiobothrys stipitatus var. stipitatus H. L. Mason 1929-3-31 5145 Contra Costa Briones Valley Comment
  SBBG40485  Plagiobothrys tenellus W. J. Dress 1951-3-17 3059 Contra Costa Berkeley Hills, just W of Orinda Comment
  CHSC67897  Plagiobothrys trachycarpus James D. Jokerst 1988-3-21 2995 Contra Costa Los Vaqueros project in Livermore Valley ca. 1 mi W of Vasco Rd. and ca. 0.5 mi S of Camino Diablo Rd. Comment
  RSA128482  Plagiobothrys trachycarpus Robert F. Hoover 1941-4-12 4840 Contra Costa 1 mile N of Lone Tree Valley. Comment
  UC2028324  Plagiobothrys trachycarpus Barbara Ertter with Richard K. Brummitt 1998-5-13 16143 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, depression in road from Somersville Road to south leg of Loughler Loop Trail. Comment
  JEPS116832  Plagiobothrys undulatus David Gowen 2007-5-8 707 Contra Costa Briones Regional Park, in vernal depression northeast of Sindicich Lagoon. Comment
  JEPS116853  Plagiobothrys undulatus David Gowen 2007-4-16 677 Contra Costa Briones Regional Park in vernal depression northeast of Sindicich Lagoon. Comment
  JEPS22058  Plantago coronopus G. Thomas Robbins 1958-7-13 3899 Contra Costa n end Berrellesa Street, Martinez; Carquinez Strait Comment
  UC1314969  Plantago elongata R. F. Hoover 1967-4-28 10516 Contra Costa Byron Hot Springs Comment
  CDA42160  Plantago elongata Jim Jokerst 1989-3-28 3063 Contra Costa Northwest of junction of Byron Hot Springs Road and Armstrong Road. Northeast of Livermore. 0 Comment
  JEPS68980  Plantago erecta Edward Lee 1935-3-29 1315 Contra Costa Nortonville, s watershed of Kirker Pass Kirker Pass, Nortonville Comment
  UC1950198  Plantago erecta Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8141 Contra Costa sink W and adjacent to Clifton Court Forebay, ca 15 airmiles SW of Stockton Comment
  UCD124520  Plantago major Malcolm A. Nobs; S. Galen Smith 1949-7-8 947 Contra Costa Otto's Black Bass Resort, 4 miles N of Kingston. Comment
  UCD124528  Plantago major M. Wiesendanger 1926-6-1 1528 Contra Costa Richmond. Comment
  JEPS22091  Plantago maritima var. juncoides G. Thomas Robbins 1958-7-19 3903 Contra Costa about 0.75 mi s Pt. San Pablo, Potrero San Pablo, Richmond; San Francisco Bay, Pt. Orient Comment
  UC28022  Plantago maritima var. juncoides Jos. Burtt Davy 1900-6-7 6670 Contra Costa near Martinez Comment
  UC11981  Platanus racemosa F. W. Koch Aug. 1895 Contra Costa Wildcat Creek Comment
  UCD143180  Platanus racemosa Robt. Branstead 1934-3-30 s.n. Contra Costa SW slope of Mt. Diablo. 426 Comment
  CAS-BOT-BC6458  Platystemon californicus Mary Katherine (Mrs.) Brandegee 1889-4-1 s.n. Contra Costa Antioch Comment
  UC101592  Platystemon californicus Katharine Brandegee 1907-5-5 c Contra Costa between Antioch and Marsh Creek; between Antioch and Marsh Creek Comment
  UC64135  Platystemon californicus H. M. Hall 1900-3-23 Contra Costa San Pablo Creek; Region of San Francisco Bay, San Pablo Creek Comment
  UC692175  Platystemon californicus Mary L. Bowerman 1933-4-15 1868 Contra Costa canyon s Arroyo del Cerro, Mount Diablo (rocky knoll 250 ft below spring, Mount Diablo); Mount Diablo Comment
  UC692192  Platystemon californicus Mary L. Bowerman 1935-4-17 2828 Contra Costa 2 mi from entrance Mount Diablo North Rd; Mount Diablo 237 Comment
  JEPS100158  Plectritis brachystemon G. Smick 2003-4-3 GAS 119 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2027798  Plectritis ciliosa Barbara Ertter with Brad Olson, Dianne Lake 1996-4-14 14587 Contra Costa East side of Mt. Diablo, access from Morgan Territory Road to Prospectors Gap Road, gate between archery range and private ranch Comment
  JEPS4797  Plectritis ciliosa subsp. ciliosa W. L. Jepson 1922-5-23 9665 Contra Costa Mount Diablo Comment
  UC691528  Plectritis ciliosa subsp. insignis Mary L. Bowerman 1931-3-8 558 Contra Costa above mouth of Mitchell Canyon (Mount Diablo); Mount Diablo 457 Comment
  JEPS111769  Plectritis macrocera D. G. Kelch 2004-4-3 04 .43 Contra Costa Marsh Creek Road cut about 1.5 miles west of Deer Valley Road. Comment
  OBI22108  Pleuropogon californicus Peter H. Raven, G. Thomas Robbins 1956-4-28 9042 Contra Costa Just E of jctn to Martinez along State hwy 4 Comment
  UCD90164  Pleuropogon californicus var. californicus P. B. Kennedy 1929-4-21 s.n. Contra Costa Near Concord, corner of Franklin Canyon Road, by Soldier's Monument. Comment
  CHSC21644  Poa annua Willis Ball 1975-3-2 471 Contra Costa Contra Loma Regional Park. In area #1. At w end of main parking lot at s end of lake. 36 Comment
  JEPS100035  Poa annua S. O'Neil 2003-5-8 SEO 28 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC691191  Poa annua Mary L. Bowerman 1931-4-4 666 Contra Costa Pond w of Turtle Rock; Mt. Diablo Comment
  POM205468  Poa howellii Jos Burtt Davy 1899-4-19 7853 Contra Costa Las Trampas Creek Comment
  UC692328  Poa howellii Mary L. Bowerman 1933-5-21 2148 Contra Costa below Grape Spring (s from Curry Canyon); Mt Diablo Comment
  SEINET10921027  Poa scabrella Alan A. Beetle 1941-3-23 Beetle 1713 Contra Costa 1 mile east of St. Mary's College, dry bank, edge of grazed field Avena fatua, Stipa pulchra.Assoc. Avena fatua, Stipa Pulchra. 600 Comment
  POM300628  Poa secunda Mary L. Bowerman 1933-5-3 1985 Contra Costa Alder Canyon 732 Comment
  CAS-BOT-BC236389  Poa secunda subsp. secunda Mary L. Bowerman 1932-4-16 1358 Contra Costa Mount Diablo. Eagle Point Ridge, N of Eagle Point Comment
  CAS-BOT-BC236390  Poa secunda subsp. secunda Mary L. Bowerman 1935-5-3 2960 Contra Costa Mount Diablo. Sloan Road 487 Comment
  CAS-BOT-BC236391  Poa secunda subsp. secunda A. A. Beetle 1941-3-23 1713 Contra Costa 1 mile E of St. Mary's College 182 Comment
  CAS-BOT-BC236397  Poa secunda subsp. secunda Alice Eastwood 1893-5-3 s.n. Contra Costa Antioch Comment
  UC692417  Poa secunda subsp. secunda Mary L. Bowerman 1935-4-19 2859 Contra Costa near Turtle Rock (hillside opposite side of rd); Mt Diablo 457 Comment
  UC70975  Poa secunda subsp. secunda H. M. Hall 1901-3-17 1661 Contra Costa Pt Richmond Comment
  UCD91671  Poa secunda subsp. secunda P. B. Kennedy 1916-5-1 s.n. Contra Costa Pinehurst. Comment
  SEINET5554719  Poaceae J. Hamai 1985-1 s.n. Contra Costa Russell Reserve. Comment
  SEINET883323 Image available Poaceae F. W. Gould 1941-1 1304 Contra Costa near San Francisco Bay at Albany. Comment
  POM126756  Pogogyne douglasii V. King Chesnut 1887-9-10 s.n. Contra Costa Mt. Diablo Comment
  UC1795893  Pogogyne serpylloides Barbara Ertter, Lisa Schultheis 1995-4-27 14017 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; head of west facing scrub-filled draw (east of golf-course). 182 Comment
  JEPS62457  Pogogyne serpylloides John Thomas Howell 1930-4-22 4747 Contra Costa Bald Peak, Berkeley Hills. Comment
  UC1988933  Pogogyne serpylloides John Thomas Howell 1930-4-22 4747 Contra Costa Bald Peak Comment
  CHSC67525  Pogogyne zizyphoroides Lori May 1990-6-6 Contra Costa E of Bixley Rd., ca. 0.5 mi N of Hwy. 4. Comment
  JEPS65184  Pogogyne zizyphoroides L. R. Heckard 1971-4-15 2483 Contra Costa At intersection of Holey Road, South of Byron. Comment
  UC32588  Pogogyne zizyphoroides Chestnut and Drew 1889-4-18 Contra Costa Antioch Comment
  UC762113  Pogogyne zizyphoroides R. F. Hoover 1941-4-12 4842 Contra Costa 2 miles S of Antioch Comment
  UC692146  Polygonum amphibium Mary L. Bowerman 1935-9-13 3338 Contra Costa Hidden Pond Mount Diablo Comment
  JEPS99992  Polygonum arenastrum G. Smick 2003-5-8 GAS 176 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD150900  Polygonum argyrocoleon James A. Neilson Jr. 1972-10-22 3510 Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 0 Comment
  POM181450  Polygonum aviculare I. L. Wiggins 1930-4-18 4612 Contra Costa East end of Jersey Island. Comment
  UC465853  Polygonum aviculare subsp. aviculare Tracy J. Storer 1912-7-12 Contra Costa 2 mi SW of Walnut Creek 60 Comment
  UC6649  Polygonum aviculare subsp. aviculare Hansen Sept. 1899 Contra Costa Byron Springs Comment
  CAS-BOT-BC413969  Polygonum aviculare subsp. aviculare Walter Knight; Wayne Roderick; Steve Edwards; Bob Doyle 1978-9-19 3256 Contra Costa Brown's Island, South Landing Comment
  CDA2797  Polygonum cuspidatum G. D. Barbe 1975-10-29 2101 Contra Costa Bank of Lafayette Creek, Mt. Diablo Blvd. at Village Center, Lafayette 0 Comment
  UC1478304  Polypodium calirhiza Alan R. Smith with Tom Lemieux 1981-11-19 826 Contra Costa n slope Mt. Diablo (creekside ravine along North Gate Rd., 3.6 mi w of (below) Park HQ (South Gate Rd. junction); Mt. Diablo State Park 640 Comment
  UC1541044  Polypodium calirhiza Dick Moe 1985-2-24 Contra Costa Red Rock Isl.; San Francisco Bay Comment
  UC440151  Polypodium calirhiza Ivar Tidestrom June, 1895 Contra Costa Crockett Comment
  CAS-BOT-BC72043  Polypodium calirhiza Mary L. Bowerman 1935-3-15 2736 Contra Costa Arroyo del Cerro, east fork 262 Comment
  UC2013051  Polypogon interruptus Barbara Ertter with Tony Morosco 1996-7-27 15031 Contra Costa Mount Diablo State Park, Donner Creek ca halfway between Regency Drive trailhead and old cabin site. Comment
  CAS-BOT-BC233017  Polypogon interruptus L. R. Abrams 1916-6-30 5714 Contra Costa Mount Diablo, near lake Comment
  UCD37371  Polypogon interruptus Beecher Crampton 1959-9-3 5454 Contra Costa Contra Costa County, 2 miles north of city of Orinda, Bear Creek, East Bay Municipal Utilities District Project. Comment
  CDA32661  Polypogon monspeliensis D. G. Kelch, Andrew G. Murdock 2004-4-26 4 .135 Contra Costa Carquinez Strait Region; Pt. Pinole. Comment
  CDA9488  Polypogon monspeliensis D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .213 Contra Costa Byron Airport. Comment
  JEPS72969  Polypogon monspeliensis W. L. Jepson 1940-6-5 19934 Contra Costa Richmond Comment
  UC1819045  Polypogon monspeliensis Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14234 Contra Costa South side Mount Diablo, Sheepherder Springs complex 1/2 mile north of Curry Point, wet ground in grassland. 487 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
  UCD91254  Polypogon monspeliensis Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  CAS-BOT-BC232580  Polypogon monspeliensis Niall McCarten; V. I. Daina 1986-6-1 04141057 5 Contra Costa E of Byron Highway, N of Clifton Court Road Comment
  CAS-BOT-BC232581  Polypogon monspeliensis Mary L. Bowerman 1932-8-27 1521 Contra Costa Mount Diablo. Spring S of Turtle Rock Comment
  RSA720803  Polypogon viridis Mary L. Bowerman 1975-9-14 s.n. Contra Costa Mount Diablo. Muddy rivuley coming from leak in pipe near Chase Pond. Comment
Read comments Jun 30 2011
  CAS-BOT-BC237472  Polypogon viridis Mary L. Bowerman 1933-11-4 2462 Contra Costa Mount Diablo. Alder Creek Springs 487 Comment
  CAS-BOT-BC237473  Polypogon viridis Walter & Irja Knight 1969-6-4 2623 Contra Costa In the Regional Parks Botanic Garden Comment
  CDA23603  Polystichum munitum D. G. Kelch 2008-2-24 8 .015 Contra Costa Carquinez Strait; Pinole Valley Park. Comment
  UC1063673  Polystichum munitum R. W. Lundh 1933-3-6 211 Contra Costa 1/2 mi w Eastport; Concord Quadrangle Comment
  UC606764  Polystichum munitum Edward Lee 1936-4-19 1983 Contra Costa se slope of island Red Rock; San Francisco Bay Comment
  UC1925893  Populus fremontii Donald G. Nelson 1937-4-29 514 Contra Costa Road from Pinole south towards Alhambra Road. Comment
  UC1099893  Potamogeton crispus Malcolm A. Nobs, S. Galen Smith 1949-7-7 939 Contra Costa Webb Island in the Sacramento River Delta; San Joaquin Valley Comment
  CAS-BOT-BC452110  Potamogeton crispus Walter Knight 1979-6-15 3385 Contra Costa Where Straight Slough merges with New York Slough. Browns Island. Comment
  SD211524  Potamogeton filiformis Barbara Ertter, Diane Lake, et al 1991-8-18 10715 Contra Costa Browns Island North of Pittsburg near confluence of Sacrament and San Joaquin rivers opposite Pittsburg Marina; at West end of island. Comment
  JEPS78627  Potamogeton pectinatus Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3294 Contra Costa mouth of Crooked Slough; Browns Island, East Bay Regional Park District Comment
  UC2029168  Potamogeton pectinatus Barbara Ertter 2000-7-16 17399 Contra Costa Lower Pine Creek in Diablo Foothills Regional Park. Comment
  CAS-BOT-BC508635  Prosartes hookeri Mary L. Bowerman 1933-4-22 1888 Contra Costa Curry-Cave Point Trail 426 Comment
  UC74103  Proserpinaca pectinata N. L. Gardner 1905-11-14 Contra Costa near Richmond Comment
  JEPS111535  Prunus cerasifera D. G. Kelch 2005-5-6 05 .219 Contra Costa Franklin Canyon East of Christie Road. South of Route 4.. 127 Comment
  UC691115  Prunus cerasifera Mary L. Bowerman 1931-4-18 726 Contra Costa Sycamore Canyon: flat at junction of E and NE forks. Mt. Diablo 396 Comment
  UC2027948  Prunus cerasifera Barbara Ertter 1997-9-7 15791 Contra Costa North side Mount Diablo, cabin site on Donner Creek, in persisting orchard. Comment
  JEPS112076  Prunus dulcis D. G. Kelch 2003-3-21 03 .43 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  JEPS99978  Prunus dulcis G. Smick 2003-2-18 GAS 63 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC12809  Prunus subcordata H. P. Chandler 1900-3-24 Contra Costa Briones Hills Region of Mount Diablo Comment
  JEPS112071  Prunus virginiana subsp. demissa A. G. Murdock 2004-5-28 268 Contra Costa Pinole Peak 205 Comment
  UC2027928  Prunus virginiana var. demissa Barbara Ertter with John Ginochio and Mary Bowerman 2001-5-8 17633 Contra Costa Northwest flank of Mount Diablo, headwaters of Arroyo del Cerro between Olofson Ridge and Long Ridge. Comment
  JEPS111702  Pseudognaphalium californicum D. G. Kelch 2004-4-26 04 .132 Contra Costa Point Pinole 8 Comment
  CAS-BOT-BC356654  Pseudognaphalium californicum Louise Dutton 1976-7-16 s.n. Contra Costa 18 Bobolink Road, Orinda 182 Comment
  JEPS99520  Pseudognaphalium luteoalbum Mary L. Bowerman 1978-6-24 Contra Costa Mount Diablo, Mitchell Creek, below reservoir. 190 Comment
  JEPS99589  Pseudognaphalium luteoalbum Mary L. Bowerman 1975-9-14 Contra Costa Mount Diablo. Fire road to Frog Pond just W of Mt. Springs Creek bridge. 451 Comment
  UC1795642  Pseudognaphalium luteoalbum Barbara Ertter, Drew Hansen 1995-3-28 13937 Contra Costa Chevron oil refinery in northwest Richmond off of Castro St. edge of levees thru created bioremediation marsh south of Wildcat Creek. Comment
  UC2036954  Pseudognaphalium luteoalbum Mary L. Bowerman 1946-2-10 4080 Contra Costa Weed around old C.C.C. camp buildings (not in use at moment). Comment
  UC1618173  Pseudognaphalium ramosissimum Barbara Ertter, CNPS 1990-8-19 9621 Contra Costa along Bear Creek Trail n Orinda (e side of s end of reservoir, on EBMUD land, near Briones Overlook); Briones Reservoir 213 Comment
  UC1795807  Pseudognaphalium stramineum Barbara Ertter, Drew Hansen 1995-3-28 13936 Contra Costa Chevron oil refinery in northwest Richmond off of Castro St. edge of levees thru created bioremediation marsh south of Wildcat Creek. Comment
  UC2027817  Psilocarphus tenellus var. tenellus Barbara Ertter with Stu Garrett 1997-3-29 15535 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  POM138612  Ptelea baldwinii subsp. crenulata C. F. Baker 1903-4-28 2943 Contra Costa Mitchell's Canyon, Mt. Diablo. Comment
  RSA0084070  Ptelea baldwinii subsp. crenulata L. S. Rose 1936-4-24 36147 Contra Costa Marsh Creek. 6 miles E of Clayton. 61 Comment
  RSA448386  Ptelea baldwinii subsp. crenulata H. de Forest 1930-4-6 s.n. Contra Costa SE of Mortonville, Small 'coal mine' ravine. 274 Comment
  CAS-BOT-BC148630  Ptelea crenulata Alice Eastwood; John Thomas Howell 1936-4-19 2134 Contra Costa Nortonville Comment
  CAS-BOT-BC148637  Ptelea crenulata Lewis S. Rose 1936-4-24 36147 Contra Costa Marsh Creek, 6 mi. E of Clayton 60 Comment
  UC137407  Ptelea crenulata C. F. Baker 1903-4-28 2943 Contra Costa Mitchell's Canyon; Mt. Diablo Comment
  UCR17982  Ptelea crenulata Dr. H. de Forest 1930-4-6 s.n. Contra Costa San Francisco Bay Region, SE of Nortonville, SW of Antioch, east of Concord 274 Comment
  CAS-BOT-BC148619  Ptelea crenulata B. Crampton 1957-7-9 4273 Contra Costa Slopes above Carquinez Straits, 2-3 miles northwest of Martinez 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
  JEPS111935  Pteridium aquilinum A. G. Murdock 2004-4-30 244 Contra Costa Vaca Canyon On north side of road along creek 165 Comment
  UC1795763  Pterostegia drymarioides Barbara Ertter, Lisa Schultheis 1995-4-27 14014 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; north-facing open brushy slope with scattered oaks along extension of Valley View road. 182 Comment
  UC1618289  Pyrus communis Barbara Ertter, Chris Thayer 1993-5-7 11700 Contra Costa Hopkins Spring 1/2 mi se of Inspiration Point (on Wilodcat Canyon Road, East Bay Municipal Utilities District land e of Tilden Park); Hopkins Spring 304 Comment
  UC1135753  Quercus X morehus R. W. Lundh 1932-9-3 155 Contra Costa 1 mi n North Peak; Mt. Diablo Quad. 609 Comment
  UC5621  Quercus X morehus J. Burtt Davy 1895-1-3 834 Contra Costa Wild-cat Canyon Comment
  JEPS104771  Quercus X morehus John L. Morrison 1937-3-6 1968 Contra Costa Comment
  CDA32855  Quercus agrifolia D. G. Kelch 2010-10-5 10 .416 Contra Costa The Delta; Just east of Antioch bridge. Comment
  POM210976  Quercus agrifolia Joseph A. Ewan 1933-10-15 8027 Contra Costa SW slope of Mt Diablo 1067 Comment
  UC691324  Quercus agrifolia Mary L. Bowerman 1931-10-5 1053 Contra Costa head of Mount Diablo Creek, Marsh Creek Road Mount Diablo Comment
  UCD45028  Quercus agrifolia J. M. Tucker 1946-3-14 1374 Contra Costa Small tree ca.29 feet tall, in clearing among redwoods; Redwood Peak, ca. 150 yards south of summit, Contra Costa County, California. Comment
  CDA20379  Quercus agrifolia var. agrifolia P. Akers 2002-5-11 s.n.- 1 Contra Costa Northern California; Mt Diablo Summit Trail at water tank picnic area. 873 Comment
  UC691295  Quercus berberidifolia Mary L. Bowerman 1933-6-21 2341 Contra Costa Median Ridge (Donner Canyon) Mount Diablo Comment
  JEPS77011  Quercus chrysolepis Robert M. Lloyd 1963-3-17 2138 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
  UC1135397  Quercus chrysolepis R. C. Wilson 1935-3-28 155 Contra Costa Top of Mt. Diablo Mt. Diablo Quad. 1158 Comment
  UC691282  Quercus chrysolepis Mary L. Bowerman 1931-5-16 852 Contra Costa s side Meridian Peak summit; Mount Diablo Comment
  UC691284  Quercus chrysolepis Mary L. Bowerman 1930-6-7 275 Contra Costa Mount Diablo summit Mount Diablo Comment
  JEPS100000  Quercus douglasii S. O'Neil 2003-3-11 SEO 16 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site 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
  RSA476581  Quercus douglasii H. de Forest 1930-4-13 s.n. Contra Costa Road through N end Diablo Range. 915 Comment
  UC691299  Quercus durata Mary L. Bowerman 1932-10-16 1632 Contra Costa Donner Canyon trail Mount Diablo Comment
  CDA39042  Quercus garryana D. G. Kelch 2011-6-5 11 .57 Contra Costa Carquinez Strait; South of Crockett, south of Cummings Skyway. Comment
  SBBG115591  Quercus garryana E. Dean, M. Bowerman, B. Ertter, J. M. Tucker, J. Kerbavaz 2000-9-13 654 Contra Costa Mt Diablo St Park, Fossil Ridge, just upslope of S Gate Rd, just W of Gibraltar Rock, SE of Rock City 487 Comment
  UCD17420  Quercus garryana E. Dean; M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 656 Contra Costa California. Contra Costa County: Mount Diablo State park, Fossil Ridge, along fire road that begins at the parking lot southeast of Rock City and climbs onto Fossil Ridge in southeasterly direction, ca. 0.1 mile from Rock City, slightly downslope of road. 487 Comment
  CDA23104  Quercus kelloggii D. G. Kelch, D. A. Weinstein 2007-10-11 s.n. Contra Costa Carquinez Strait; Canada de Cierbo, just S of Crockett. Comment
  UC1543002  Quercus kelloggii Donald G. Nelson 1938-11-6 590 Contra Costa midway between Lafayette and Moraga Estates (along main highway) Comment
  UC5819  Quercus kelloggii H. P. Chandler 1900-3-24 Contra Costa Orinda Park Mount Diablo Region Comment
  UC691314  Quercus kelloggii Mary L. Bowerman 1935-11-30 3354 Contra Costa w of Gibraltar Rock; Mount Diablo, Fossil Ridge Comment
  SEINET9356036  Quercus lobata Unknown 1938-10-28 Contra Costa Marsh Creek, 6 mi E of Clayton. Canyon bottom. Comment
  JEPS95240  Quercus parvula Stephen W. Edwards March 1994 Contra Costa Sobrante Ridge Regional Preserve Comment
  RSA0016755  Quercus parvula var. shrevei Ellen Dean, Barbara Ertter, J. M. Tucker, C. Chaney 2000-9-13 650 Contra Costa City of El Sobrante; El Sobrante Ridge, upslope of the terminus of Heavenly Ridge Road, junction of Heavenly Ridge Trail and Manzanita Trail. 213 Comment
  CAS-BOT-BC104715  Quercus wislizeni H. E. McMinn s.n. Contra Costa near summit of Mt. Diablo 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
  UC5707  Quercus wislizeni W. H. Brewer 1861-9-25 843 Contra Costa Mount Diablo Comment
  UC691296  Quercus wislizeni Mary L. Bowerman 1933-9-30 2449 Contra Costa Russelman Park Mount Diablo Comment
  CAS-BOT-BC104718  Quercus wislizeni D. C. Barclay 1919-5-10 s.n. Contra Costa from the hill above Redwood Inn, Moraga Valley Comment
  UC691455  Rafinesquia californica Mary L. Bowerman 1935-5-16 2997 Contra Costa near the s boundary Russelman Park; Mount Diablo, Russelman Park 381 Comment
  UC691456  Rafinesquia californica Mary L. Bowerman 1932-5-6 1419 Contra Costa Mitchell Canyon Floor Mount Diablo, Mitchell Canyon Floor 213 Comment
  UC691951  Ranunculus aquatilis Mary L. Bowerman 1935-6-21 3155 Contra Costa s Turtle Rock (winter pool e of main pond); Mount Diablo Comment
  POM270022  Ranunculus aquatilis var. capillaceus Mary L. Bowerman 1931-4-4 662 Contra Costa Pool W of Turtle Rock (can be seen from top of rock) covering a considerable area of the bottom of the dried up pool Comment
  UC2028388  Ranunculus aquatilis var. diffusus Barbara Ertter with Tony Morosco 1998-7-11 16365 Contra Costa North base of Mount Diablo, small pond on north side of Bruce Lee Road east of Mitchell Canyon staging area Comment
  UC1126151  Ranunculus californicus R. C. Wilson 1935-3-27 148 Contra Costa Oyster Pt. Mt. Diablo Quadrangle Comment
  UC480590  Ranunculus californicus Carl Meyer 1928-2-22 295 Contra Costa Mt. Diablo Comment
  SEINET13717644  Ranunculus californicus Unknown 1948-2-12 1103 Contra Costa West facing slope along Bear Creek Canyon in Lawson Hill area. Comment
  SEINET11263164  Ranunculus canus Barbara Ertter, Brad Olson; James R. Shevock 1997-3-19 15505 Contra Costa East of Los Vaqueros Reseroir between Livermore and Brentwood.; 0 Comment
  UC1126160  Ranunculus canus C. M. Belshaw 1936-5-12 2110 Contra Costa 3.7 mi ene Tassajero (Plot 31); Mt. Diablo Quadrangle Comment
  UC692186  Ranunculus canus Mary L. Bowerman 1930-6-5 246 Contra Costa North Road 5.8 mi from entrance to park (near a stream in canyon); Mount Diablo Comment
  UC732542  Ranunculus canus Lyman Benson 1931-3-18 2655 Contra Costa Danville South Coast Mt. Range, Sacramento River Watershed, Mt. Diabl (w base of mt.) 213 Comment
  UC635097  Ranunculus canus var. canus H. L. Mason 1929-3-15 5055 Contra Costa on summit of hill east of Nortonville Comment
  UC692185  Ranunculus canus var. canus Mary L. Bowerman 1931-3-8 563 Contra Costa Mitchell Canyon (west bank, near mouth); Mount Diablo Comment
  UC692189  Ranunculus canus var. canus Mary L. Bowerman 1932-3-23 1127 Contra Costa East of Donner Creek; Mount Diablo Comment
  POM268449  Ranunculus canus var. laetus Lyman Benson 1935-3-16 6272 Contra Costa Mitchell Canyon near Clayton; Mt. Range: Mt. Diablo; Watershed: Walnut Creek. 244 Comment
  UC854399  Ranunculus hebecarpus Lewis S. Rose 1940-4-11 40180 Contra Costa 6 mi se Clayton; Marsh Creek 60 Comment
  CDA31880  Ranunculus hebecarpus D. G. Kelch 2008-4-6 8 .033 Contra Costa Black Diamond Mines Regional Park. Near small picnic area between parking lot and mine entrance. 0 Comment
  POM282740  Ranunculus hebecarpus L. S. Rose 1934-3-21 34071 Contra Costa Marsh Creek, 6 miles E of Clayton. Comment
  POM300585  Ranunculus muricatus Mary L. Bowerman 1938-5-25 3629 Contra Costa Arroyo Del Cerro by N road Comment
  SD48397  Ranunculus occidentalis G. R. Campbell 1956-4-6 17 Contra Costa Between Round Top and summit of Mt. Diablo 305 Comment
  POM289510  Ranunculus sceleratus H. L. Mason 1937-6-21 11547 Contra Costa 0.5 mile from the S end of Borden Hwy and 1.5 miles W of Byron. Comment
  UC2028212  Raphanus raphanistrum Barbara Ertter with Richard K. Brummitt 1998-5-13 16134 Contra Costa North Gate Road on west side of Mount Diablo, hairpin turn opposite Angel Kerley trailhead. 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
  UC407038  Raphanus sativus Ira L. Wiggins 1930-4-18 4610 Contra Costa Jersey Island Comment
  JEPS112063  Reseda alba D. G. Kelch 2004-4-11 04 .76 Contra Costa Crockett - Crolona Heights Hillside above Rolf Drive. Lower Crolona heights. 15 Comment
  UC2062667  Rhamnus alaternus Barbara Ertter with David Gowen 2006-4-14 18667 Contra Costa Lime Ridge Open Space (City of Concord) at NW foot of Mount Diablo, SE side of Ygnacio Valley Road. Comment
  JEPS75497  Rhamnus californica P. F. Yorks 1975-5-31 424 Contra Costa ca 1.6 km s Bear Creek Road on Hampton Road in Hamption Natural Reserve (n of Briones Reservoir) 180 Comment
  JEPS42029  Rhamnus californica subsp. californica W. L. Jepson 1924-6-25 10600 Contra Costa Moraga Ridge Comment
  UC692581  Rhamnus crocea Mary L. Bowerman 1930-6-22 360 Contra Costa Mitchell Canyon Mount Diablo Comment
  JEPS42024  Rhamnus ilicifolia W. L. Jepson 1920-9-6 9079 Contra Costa Donner Canyon Mt. Diablo Comment
  UC692602  Rhamnus tomentella subsp. tomentella Mary L. Bowerman 1933-1-7 1687 Contra Costa Perkins Canyon, by dirt road Mount Diablo Comment
  POM300719  Rhus trilobata var. pilosissima Mary L. Bowerman 1933-3-25 1776 Contra Costa Emmons Canyon, off Stone Valley Comment
  JEPS77003 Image available Ribes amarum Robert M. Lloyd 1963-3-17 2133 Contra Costa 0.5 mi e Grizzly Peak Road (on Skyline Drive (across from 7090 Skyline Drive), Huckleberry trail); Huckleberry trail Comment
  UC692214  Ribes californicum Mary L. Bowerman 1930-6-22 366 Contra Costa Mitchell Canyon Mount Diablo Comment
  UC69859  Ribes californicum H. M. Hall 1901-4-5 1758 Contra Costa Summit Mt. Diablo Region of San Francisco Bay Comment
  SEINET5339458  Ribes californicum E. Mulliken 1905-5-29 161 Contra Costa Wildcat Canon, Berkeley Hills Comment
  CDA25524  Ribes californicum var. californicum D. G. Kelch, A. G. Murdock 2003-2-7 3 .036 Contra Costa Carquinez Strait Region; Franklin Canyon. Comment
  JEPS100039  Ribes californicum var. californicum S. O'Neil 2003-2-25 SEO 9 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC11524  Ribes divaricatum var. pubiflorum J. Burtt Davy 1895-4-13 997 Contra Costa near Lafayette Comment
  CAS-BOT-BC168924  Ribes malvaceum John Thomas Howell 1923-11-12 243 Contra Costa Mt. Diablo Comment
  UC1127450  Ribes menziesii R. W. Lundh 1932-9-22 166 Contra Costa Mount Diablo Mt. Diablo Quadrangle Comment
  UC692435  Ribes menziesii Mary L. Bowerman 1933-6-3 2248 Contra Costa summit Meridian Peak (n side); Mt. Diablo 1127 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
  CAS-BOT-BC206017  Ribes menziesii John Thomas Howell 1980-4-10 53367 Contra Costa Morgan Territory east of Mt. Diablo Comment
  UC570964  Ribes sanguineum var. glutinosum Herbert L. Mason 1925-9-12 2224 Contra Costa head San Leandro Canyon; Oakland Hills Comment
  CAS-BOT-BC362966  Rigiopappus leptocladus M. K. Curran 1884-5-1 36 Contra Costa Antioch Comment
  UC691487  Rigiopappus leptocladus Mary L. Bowerman 1935-4-17 2835 Contra Costa 2 mi from North Gate (North Road, ridge w of chaparral); Mount Diablo 286 Comment
  UC697151  Rigiopappus leptocladus Mary L. Bowerman 1931-4-4 669 Contra Costa w Turtle Rock; Mount Diablo Comment
  CAS-BOT-BC362964  Rigiopappus leptocladus Brandegee No date on label s.n. Contra Costa Antioch Comment
  CDA25732  Romulea rosea D. G. Kelch, D. A. Weinstein 2008-3-3 8 .025 Contra Costa East Bay.; Richmond. Wildcat Canyon Park. Alvarado Unit (W end). Comment
  JEPS111063  Romulea rosea var. australis Lee Echols 2003-3-8 s.n. Contra Costa N of Lark Drive in S portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  CAS-BOT-BC74412  Rorippa curvisiliqua W. W. Carruth 1902-4-29 s.n. Contra Costa Mount Diablo. Comment
  UC2027956  Rorippa curvisiliqua Barbara Ertter with Joanne Kerbavaz 2000-8-20 17501 Contra Costa Frog Pond on southeast side of Mount Diablo. Comment
  JEPS100080  Rorippa nasturtium-aquaticum S. O'Neil 2003-8-6 SEO 45 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC75017  Rorippa palustris Walter Knight; Rolf Bensler; Brian Atwater; J. Dean; Bryan Mortensen 1979-4-13 3363 Contra Costa Browns Island. Crooked Slough. Comment
  UC1952819  Rosa californica Barbara Ertter with David Gowen 2010-11-17 20700 Contra Costa southeast part of Lime Ridge Open Space (City of Walnut Creek(, mid slope of east-facing drainage below Crystyl Ranch Trail ca 1/4 mi N of jct Paraiso Trail Comment
  UC630419  Rosa californica Paule Guiguet and Annetta Carter 1939-8-13 1450 Contra Costa se Clayton; Mount Diablo drainage, Donner Creek 152 Comment
  OBI70554  Rosa gymnocarpa D. G. Kelch, D. A. Weinstein 2008-4-15 8 .046 Contra Costa Carquinez Strait: S Port Costa along Mckewen rd ( 137 Comment
  CAS-BOT-BC147152  Rubus laciniatus Walter Knight; Bill Burley 1979-8-18 3445 Contra Costa Browns Island, Point Emmett Comment
  CAS-BOT-BC158773  Rubus ursinus Walter Knight; Joanne Dean 1978-8-14 3167 Contra Costa Browns Island Comment
  UC2032842  Rubus ursinus Doran, Andrew Scott 2012-3-20 713 Contra Costa North east side of Brooks Island Comment
  CAS-BOT-BC158772  Rubus ursinus Elsie Zeile 1910-4-2 s.n. Contra Costa Fish Ranch r. Comment
  CDA25734  Rumex acetosella D. G. Kelch, D. A. Weinstein 2008-4-15 8 .042 Contra Costa Carquinez Strait; S Port Costa along Mckewen Rd. Comment
  CAS-BOT-BC421865  Rumex acetosella Mary L. Bowerman 1935-5-18 3016 Contra Costa Mount Diablo. Road above Indian Ceremonial Spring: Roadbank at hairpin turn. Comment
  UC692166  Rumex crispus Mary L. Bowerman 1935-6-28 3177 Contra Costa s of Meridian Peak summit (300 yds e of the meridian fence, at very edge of the pond area); Mount Diablo 487 Comment
  UC692169  Rumex crispus Mary L. Bowerman 1935-5-30 3082 Contra Costa Donner Canyon stream Mount Diablo 152 Comment
  CAS-BOT-BC433479  Rumex fueginus Walter Knight; Irja Knight 1980-8-26 3804 Contra Costa At Hercules Comment
  JEPS41050  Rumex pulcher Rimo Bacigalupi, and L. R. Heckard 1965-5-11 9075 Contra Costa sw of Richmond (w side of Brooks Island); San Francisco Bay, Brooks Island 6 Comment
  UC692157  Rumex pulcher Mary L. Bowerman 1938-5-28 3644 Contra Costa Maple Spring, upper margin Mount Diablo Comment
  UC2012982  Rumex salicifolius var. salicifolius Barbara Ertter with Tony Morosco 1996-7-27 15030 Contra Costa Mount Diablo State Park, Donner Creek ca halfway between Regency Drive trailhead and old cabin site Comment
  JEPS65649  Rupertia physodes W. L. Jepson May 23 1891-May 24 1891 13595 Contra Costa Mt. Diablo Comment
  SJSU5703  Rupertia physodes C. O. Dudley 1966-5-1 113 a Contra Costa Reliez Valley, Briones Hills, N of Lafayette 152 Comment
  UC2070472  Rupertia physodes Barbara Ertter 2002-5-11 17842 Contra Costa Southwest base of Mount Diablo, lower Emmons Canyon Road. Comment
  POM118953  Ruppia cirrhosa Edward Palmer 2673 Contra Costa Byron Hot Springs. Comment
  CDA1428  Ruppia maritima D. G. Kelch, Andrew G. Murdock 2004-4-26 4 .138 Contra Costa Carquinez Strait Region; Pt. Pinole in tidal pond. Comment
  CAS-BOT-BC454141  Ruppia maritima J. W. Congdon 1889-6-20 10 Contra Costa Byron Springs Comment
  UC2070543  Sagina decumbens subsp. occidentalis Barbara Ertter with Linda Vorobik 2002-4-6 17821 Contra Costa South flank of Mount Diablo, west fork of Alamo Creek at end of spur road under powerlines. 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
  POM164904  Salicornia virginica Katherine Brandegee s.n. Contra Costa Byron Hot Springs. Comment
  SEINET1910270  Salicornia virginica Barbara Ertter, Elizabeth Neese 1988-1 7974 Contra Costa Salicornia marsh W of I-580 in El Cerrito, W side along Rydin Road N of Central Avenue. Comment
  UC69376  Salix Wm. W. Mott 1905-3-11 Contra Costa n.e. corner of San Pablo and McAvoy Lane Comment
  UC69377  Salix Wm. W. Mott 1905-3-11 Contra Costa n.e. corner San Pablo and McAvoy Lane Comment
  CAS-BOT-BC103027  Salix bonplandiana Walter Knight; R. Bensler; B. Atwataer; J. Dean; B. Mortensen 1979-4-13 3368 Contra Costa South Landing. Browns Island Comment
  UC650583  Salix exigua var. hindsiana Ira L. Wiggins 1930-4-18 4587 Contra Costa levee banks Jersey Isl. Comment
  UC691958  Salix exigua var. hindsiana Mary L. Bowerman 1935-5-30 3080 Contra Costa by Donner Canyon stream Donner Canyon; Mt. Diablo, Donner Canyon 152 Comment
  CAS-BOT-BC107859  Salix gooddingii Walter Knight 1978-8-27 3195 Contra Costa Along reservoir's edge. Contra Loma Regional Park - Sierra Nevada 30 Comment
  CAS-BOT-BC104087  Salix hindsiana Mary L. Bowerman 1935-5-30 3081 Contra Costa By Donner Canyon stream 152 Comment
  JEPS112253  Salix laevigata D. G. Kelch 2005-3-11 05 .038 Contra Costa Martinez - Franklin Hills; Carquinez Shoreline EBRP. West of Martinez High School. Comment
  POM300614  Salix laevigata Mary L. Bowerman 1933-4-15 1854 Contra Costa Canyon S of Arroyo del Cerro Comment
  UC692053  Salix laevigata Mary L. Bowerman 1935-10-26 3348 Contra Costa creek bottom at road junction Mt. Diablo 640 Comment
  RSA0030832  Salix laevigata Walter C. Blasdale 1896-2-29 s.n. Contra Costa Clayton. Comment
  CAS-BOT-BC125142  Salix lasiandra var. lasiandra W. W. Mott 1905-3-11 s.n. Contra Costa unspecified Comment
  JEPS112248  Salix lasiolepis A. G. Murdock 2004-2-12 208 Contra Costa Franklin Canyon; Along Franklin Canypn east of McHarry Ranch Road Comment
  UC692057  Salix lasiolepis Mary L. Bowerman 1931-2-22 518 Contra Costa Sycamore Canyon; mouth Comment
  UC692065  Salix lasiolepis Mary L. Bowerman 1935-6-21 3142 Contra Costa Arroyo del Cerro Mount Diablo (e fork) 259 Comment
  UC692066  Salix lasiolepis Mary L. Bowerman 1933-4-9 1830 Contra Costa streambed below Twin Peaks (w fork of canyon); Mount Diablo, Donner Canyon Comment
  CAS-BOT-BC129554  Salix lasiolepis var. lasiolepis Walter Knight 1965-3-1 s.n. Contra Costa Antioch dunes, by water's edge - Carquinez Straights Comment
  CAS-BOT-BC129562  Salix lasiolepis var. lasiolepis Alice Eastwood 1914-2-24 3728 Contra Costa Antioch Comment
  CAS-BOT-BC129599  Salix lasiolepis var. lasiolepis Mary L. Bowerman 1933-4-9 1830 Contra Costa Donner Canyon, west fork; stream-bed below Twin Peaks - Mount Diablo Comment
  CAS-BOT-BC129556  Salix lasiolepis var. lasiolepis Mary L. Bowerman 1932-2-13 1087 Contra Costa By Alamo Creek (West Branch) - Mount Diablo 289 Comment
  JEPS59865  Salsola tragus W. L. Jepson 1923-10-4 10212 a Contra Costa orchards near Antioch Comment
  SEINET7718207  Salvia carduacea Chesnut, Drew 1889-4-18 Contra Costa Antioch Comment
  UC1124728  Salvia columbariae C. M. Belshaw 1936-5-8 2054 Contra Costa se slope Mt. Diablo; Mt. Diablo Quad. 990 Comment
  UCD102380  Salvia columbariae Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 1050 Comment
  POM300998  Salvia columbariae Mary L. Bowerman 1933-5-2 1942 Contra Costa Below Pioneer Camp, Mount Diablo. Chaparral- burn (1931) 762 Comment
  SEINET13947331 Image available Salvia columbariae Lewis S. Rose 1935-1 35168 Contra Costa Mt. Diablo 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
  CAS-BOT-BC233287  Salvia mellifera H. E. McMinn No date on label. 130 Contra Costa Mt. Diablo Comment
  SEINET3224512 Image available Salvia mellifera Lewis S. Rose 1941-3-22 41057 Contra Costa Mt. Diablo. 610 Comment
  UC25728  Salvia mellifera W. L. Jepson May 23 1891-May 24 1891 Contra Costa Mount Diablo; Region of Mount Diablo Comment
  UC635692  Salvia mellifera A. E. Borell 1928-3-18 28 Contra Costa w slope Mt. Diablo Comment
  UC691477  Salvia mellifera Mary L. Bowerman 1932-2-28 1096 Contra Costa n of junction of Curry Canyon and trail to Cave Point; Mount Diablo 533 Comment
  UCD125592  Salvia mellifera P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  SEINET5734904 Image available Salvia mellifera August Hartman 1960-1 1 Contra Costa South Gate Road, Mt. Diablo.; Mt. Diablo 305 Comment
  CAS-BOT-BC223248  Sanicula bipinnata Mrs. Brandegee No date on label s.n. Contra Costa Antioch Comment
  JEPS111610  Sanicula bipinnata D. G. Kelch 2003-4-3 03 .373 Contra Costa Martinez - West: Ozol Rock and Scenic Drive West Martinez. 118 Comment
  JEPS12783  Sanicula bipinnata Rimo Bacigalupi with G. T. Robbins 1955-5-4 4976 Contra Costa s of and above Nortonville (site) 304 Comment
  UC692321  Sanicula bipinnata Mary L. Bowerman 1931-3-14 570 Contra Costa Mount Diablo, Windy Point Mount Diablo; , Windy Point Comment
  UC691875  Sanicula bipinnatifida Mary L. Bowerman 1931-3-21 595 Contra Costa Mount Diablo, Sycamore Canyon Sycamore Canyon; Mount Diablo, Sycamore Canyon 350 Comment
  UCD127942  Sanicula bipinnatifida P. B. Kennedy 1914-3-15 4624 Contra Costa Sunset Cemetery. Comment
  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
  UC735123  Sanicula saxatilis Lincoln Constance, T. Morley, R. H. Shan, W. H. Wagner 1946-4-26 3036 Contra Costa summit s.w. of lookout Mt. Diablo 1158 Comment
  UC691879  Sanicula saxatilis Mary L. Bowerman 1931-4-25 768 Contra Costa Mount Diablo summit, little northwest of house Mount Diablo Comment
  JEPS98659  Sanicula tuberosa O. Gomez, L. Schulties and P. Vargas 1996-5-29 43 PV96 Contra Costa trail between Mt. Diablo Peak and North Peak Mt. Diablo State Park Comment
  UC566823  Sanicula tuberosa H. L. Mason 1929-3-15 5049 Contra Costa Nortonville Comment
  UC691876  Sanicula tuberosa Mary L. Bowerman 1931-4-25 755 Contra Costa Mount Diablo, near junction of south and west roads Mount Diablo Comment
  SEINET238194 Image available Sasa borealis Beecher Crampton 1966-10-18 7815 Contra Costa CULTIVATED ; Kensington Berkeley Hills Blake Garden UC Berkeley Dept. of landscape architecture. Comment
  CDA7922  Satureja douglasii D. G. Kelch, A. G. Murdock 2005-1-16 5 .003 Contra Costa Carquinez Strait; Dutra fire road. Comment
  JEPS68967  Saxifraga californica Edward Lee 1935-3-10 1300 Contra Costa s watershed of Kirker Creek (Nortonville); , Kirker Creek Comment
  UC570944  Saxifraga californica Herbert L. Mason 1926-3-7 2702 Contra Costa Mount Diablo Comment
  UC1745553  Scandix pecten-veneris Annetta M. Carter, Florence Dickson, Howard Custer 1939-5-30 1441 Contra Costa 0.8 mi. S of Lafayette. 121 Comment
  CAS-BOT-BC7627  Schoenoplectus acutus var. occidentalis Walter Knight; Joanne Dean 1978-8-14 3185 Contra Costa Browns Island. Comment
  CAS-BOT-BC111376  Schoenoplectus acutus var. occidentalis Virginia I. Dains; Walter Knight 1986-8-8 5479 Contra Costa Growing in tidal area, Jct Rock S1 & Werner Cut. Comment
  UC2070487  Schoenoplectus acutus var. occidentalis Barbara Ertter 2002-11-11 18077 Contra Costa Round Valley Regional Preserve east of Mount Diablo. Comment
  SD134082  Schoenoplectus californicus Walter Knight, Irja Knight 1977-6-18 Contra Costa On shore of San Joaquin River, Antioch sand dunes, Little Corral site. Growing in water at high tide. 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
  UC1618393  Scirpus cernuus Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10713 Contra Costa Browns Island n of Pittsburg (near confluence of Sacramento and San Joaquin Rivers, opposite Pittsburg Marina, (Botany Cove)); Browns Island Comment
  UC692092  Scirpus microcarpus Mary L. Bowerman 1938-9-17 3716 Contra Costa Big Spring , Big Spring (Mount Diablo) Comment
  UC692194  Scirpus microcarpus Mary L. Bowerman 1942-10-4 3851 Contra Costa Mount Diablo Mount Diablo (Russelman Park Road) 243 Comment
  CAS-BOT-BC110869  Scirpus microcarpus Miss Mary Leolin Bowerman 1942-10-4 3851 Contra Costa Russelman Park Road 243 Comment
  CDA39144  Scirpus microcarpus D. G. Kelch 2003-4-13 3 .137 Contra Costa Carquinez Strait; Pinole Creek. Comment
  UC691405  Scutellaria tuberosa Mary L. Bowerman 1931-3-29 626 Contra Costa Mount Diablo, Cave Point Cave Point; Mount Diablo, Cave Point Comment
  UC2029001  Scutellaria tuberosa Barbara Ertter 2000-3-30 16920 Contra Costa North side of Mount Diablo, in chaparral near base of Back Canyon Trail. Comment
  UC691406  Scutellaria tuberosa Mary L. Bowerman 1931-4-25 771 Contra Costa summit of Mount Diablo (at the junction of the one-way roads) 1143 Comment
  JEPS99566  Sedum radiatum Mary Bowerman 1975-6-1 Contra Costa Mount Diablo, (probably along Falls Trail). Comment
  UC11261  Sedum spathulifolium Brewer 842 Contra Costa Mt. Diablo Summit Comment
  JEPS37619  Senecio aronicoides W. L. Jepson 1923-6-10 9992 Contra Costa Upper Marsh Creek Mt. Diablo Comment
  JEPS37620  Senecio aronicoides W. L. Jepson 1921-5-22 9210 Contra Costa n slope Mt. Diablo summit; Mt. Diablo Comment
  CAS-BOT-BC327441  Senecio flaccidus var. douglasii Peter Rubtzoff 1954-9-14 1749 Contra Costa Along lower San Joaquin River east of Antioch Comment
  UC1561248  Senecio minimus Barbara Ertter 1989-9-30 8862 Contra Costa along streamlet at base of brush-covered slope,just n Tilden Park border; Wildcast Regional Park, East Bay Skyline Natl Recreation Tr Comment
  JEPS37621  Senecio sylvaticus W. L. Jepson 1921-5-22 9201 Contra Costa Mt. Diablo, summit Mt. Diablo 1173 Comment
  UC691361  Senecio sylvaticus Mary L. Bowerman 1933-5-11 2071 Contra Costa most westerly part of 1931 burn Mount Diablo, Inner Black Hills (Mount Diablo, Inner Black Hills) Comment
  CAS-BOT-BC80265  Sequoia sempervirens John Thomas Howell 1925-10-11 1500 Contra Costa Moraga Ridge, Oakland Hills Comment
  JEPS127099  Sherardia arvensis Lowell Ahart, Josephine Guardino 2016-4-19 20802 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
  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
  CDA31177  Silene gallica D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .219 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  CDA39044  Silene gallica D. G. Kelch 2011-6-5 11 .572 Contra Costa Carquinez Strait; South of Crockett, south of Cummings Skyway. 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
  CAS-BOT-BC74935  Sinapis arvensis Ira L. Wiggins 1930-4-18 4611 Contra Costa Jersey Island. Comment
  UC2028548  Sinapis arvensis Barbara Ertter 1998-4-4 15959 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, west base of northwestern-most ridge. Comment
  JEPS100078  Sisymbrium officinale G. Smick 2003-5-30 GAS 207 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC10827  Sisymbrium officinale unknown 1862-5-5 Contra Costa Walnut Creek Comment
  SEINET12047240  Sisyrinchium bellum C. C. Getzinger 1964-1 23 Contra Costa Richmond, Arlington Blvd. at Patterson Circle 30 Comment
  UCD138787  Sisyrinchium bellum Jennifer Davies 1982-4-11 4 Contra Costa 1 mile NW South Checking Station on South Gate Road, Mt. Diablo. 487 Comment
  IRVC12827  Smilacina stellata var. sessilifolia M. Pilorget 1967-4-17 6 Contra Costa Bear Creek. Comment
  UC2028463  Solanum americanum Barbara Ertter with Mary Bowerman 1996-11-1 15395 Contra Costa North base of Mount Diablo, downstream from Mitchell Canyon parking lot Comment
  CAS-BOT-BC231746  Solanum lanceolatum Robert De Boer; M. Bergseng 1959-8-14 2943 Contra Costa 2459 Alva, El Cerrito Comment
  CAS-BOT-BC157455  Solanum umbelliferum J. T. Howell 1933-5-14 11291 Contra Costa Hills east of St. Mary's College Comment
  CHSC24836  Solanum umbelliferum M. A. Callahan 1976-4-14 16 Contra Costa 40 m ene of house at 1976 Mohawk Dr. Pleasant Hill. 106 Comment
  UC1125032  Solanum umbelliferum R. W. Lundh 1932-8-25 142 Contra Costa Mount Diablo 838 Comment
  UC63939  Solanum umbelliferum Earle Mulliken 1903-5-10 51 Contra Costa Berkeley Hills Comment
  UCSB8611  Solanum umbelliferum Kamb, Peter; Chisaki, Francia 1950-3-18 Contra Costa Black Hills, S. of Mt. Diablo, on road from Danville to Mt. Diablo 365 Comment
  SEINET7262086 Image available Solanum xanti A. A. Heller 1908-4-16 8889 Contra Costa E of Antioch 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
  UC2028182  Soliva sessilis Barbara Ertter 1998-5-3 16036 Contra Costa Above SW fork of Pine Creek at southwest base of Mount Diablo. Comment
  UC650555  Sonchus oleraceus Ira L. Wiggins 1930-4-18 4608 Contra Costa Jersey Island Comment
  RSA181840  Spartina patens Rolf Mall 1964-11-19 s.n. Contra Costa Southampton tidal marsh at head of Suisun Bay between Benicia and Vallejo, Contra Costa County Comment
  UC2028514  Spartium junceum Barbara Ertter 1996-11-24 15419 Contra Costa West side of Mount Diablo, upstream from Pine Pond along Stage Road in Pine Canyon, floodplain at junction with Dusty Road Comment
  UCD108505  Spartium junceum Rudolf Schmid 2003-5-11 2003 -13 Contra Costa Wildcat Canyon Regional Park, north side and northwest end (east of Belgium Trail) of Wildcat Creek Trail, northwest of broad part of old paved road. 76 Comment
  UC1795742  Spergularia bocconi Barbara Ertter, Mary Bowerman et al. 1995-5-7 14027 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, along road thru annual grassland with scattered blue oak south of Marsh Creek Road summit. 304 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
  JEPS111531  Spergularia marina D. G. Kelch 2005-5-5 05 .215 Contra Costa Point Pinole - Giant Marsh 3 Comment
  UC1818936  Spergularia rubra Barbara Ertter, Mary Bowerman et al. 1995-5-7 14043 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
  UC1618133  Spergularia villosa Barbara Ertter 1996-4-7 14575 Contra Costa w of Richmond (Point San Pablo at edge of San Francisco Bay, n end of ridge where crossed by road to harbor); San Francisco Bay, Point San Pablo Comment
  CAS-BOT-BC213199  Sphaeralcea Paul F. Covel 1936-5-17 259 Contra Costa South of summit Mt. Diablo. Comment
  JEPS2868 Image available Sphaeralcea fasciculata var. elmeri A. D. E. Elmer May 1903 4395 Contra Costa Mount Diablo. Comment
Read comments Jun 12 2012
  JEPS75488  Stachys ajugoides var. rigida P. F. Yorks 1975-5-31 426 Contra Costa ca. 1.5 km s Bear Creek Road (on Hampton Road, n of Briones Reservoir); Hampton Road Natural Preserve 160 Comment
  UC1795653  Stachys ajugoides var. rigida Barbara Ertter, Brad Olson 1994-5-7 12756 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  UC1619953  Stachys albens Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10703 Contra Costa n. Pittsburg (in center of w. end of Browns Isl., near confluence of Sacramento & San Joaquin rivers opposite Pittsburg Marina); Browns Isl. Comment
  UC25957  Stachys albens Mrs. Brandegee 1882-7-8 Contra Costa Antioch Comment
  JEPS99541  Stachys pycnantha Mary L. Bowerman 1995-6-4 Contra Costa Mount Diablo. E side of Pine Pond. Comment
  UC2055617  Stachys pycnantha Joseph Andorfer Ewan 1933-10-15 8035 Contra Costa SW slope Mt. Diablo. 1066 Comment
  RSA0068488  Stachys rigida var. quercetorum Katie Gallagher, Nick Jensen 2014-4-26 186 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  JEPS111782  Stellaria media D. G. Kelch 2003-3-21 03 .58 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  JEPS51119  Stellaria nitens Rachel G. Mossman 1931-3-22 Contra Costa Grizzly Peak Comment
  UC13617  Stellaria nitens Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  UC606744  Stellaria nitens Edward Lee 1936-4-19 1969 Contra Costa ne corner Red Rock; San Francisco Bay Comment
  CDA144  Stephanomeria exigua D. G. Kelch, D. A. Weinstein 2007-8-26 7 .553 Contra Costa Carquinez Strait; Ozol Rock, W Martinez. Comment
  CAS-BOT-BC375767  Stephanomeria virgata Lewis S. Rose 1938-10-28 38308 Contra Costa Marsh Creek, 6 mi. e. of Clayton 152 Comment
  SEINET7883496 Image available Stephanomeria virgata Lewis S. Rose 1938-1 38308 Contra Costa Marsh Creek, 6 mi. e. of Clayton 152 Comment
  UC2070660  Stipa lepida Barbara Ertter 2002-5-11 17847 c Contra Costa Southwest base of Mount Diablo, lower end of Summit Trail in Dan Cook Canyon ca. half mile from South Gate Road. Comment
  UC2070661  Stipa lepida Barbara Ertter 2002-5-11 17847 a Contra Costa Southwest base of Mount Diablo, lower end of Summit Trail in Dan Cook Canyon ca. half mile from South Gate Road. Comment
  UC2029161  Stipa miliacea var. miliacea Barbara Ertter, CNPS 1990-11-11 9709 Contra Costa Carquinez Straits Regional Park east of Crockett. Comment
  JEPS127235  Stipa pulchra Lowell Ahart, Josephine Guardino 2016-4-19 20793 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 to Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  UC2029191  Stipa pulchra Barbara Ertter with Brad Olson et al. 2000-6-2 17298 Contra Costa North side Brushy Peak Regional Preserve NE of Livermore Comment
  UC2028397  Stipa pulchra Barbara Ertter with Dan Norris 1998-6-18 16211 Contra Costa South Gate Road on south flank of Mount Diablo, ca. 1 mile in from park boundary, gentle S-facing grassy slope Comment
  JEPS108223  Streptanthus glandulosus subsp. glandulosus David Gowen 2005-5-6 279 Contra Costa Mt. Diablo State Park. South east end of Prospectors Gap Rd., ca 0.3 mile NW of its junction with Ray Morgan Rd. Small area of serpentine outside of the park boundary. Comment
  UC10875  Streptanthus glandulosus subsp. glandulosus Geological Survey 1862-6-16 1268 Contra Costa Mt. Diablo range 975 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
  UC2028978  Streptanthus glandulosus subsp. glandulosus Barbara Ertter 2000-5-14 17020 Contra Costa Donner Basin on north side of Mount Diablo, switchbacks on Cardinet Oaks Road. Comment
  CAS-BOT-BC87334  Streptanthus hispidus Paul F. Covel 1938-5-8 1510 Contra Costa Summit Mount Diablo (North Peak trail). Comment
  CAS-BOT-BC87336  Streptanthus hispidus E. W. Hicks 1917-3-25 114 Contra Costa West shoulder of Mount Diablo. 762 Comment
  JEPS81240  Streptanthus hispidus Paul Hutchison 1982-4-25 8007 a Contra Costa s-facing slope below huge rock outcrop at foot of summit trail Mt. Diablo Comment
  SBBG72132  Streptanthus hispidus unknown 1895-1 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
  RSA721273  Stuckenia filiformis Barbara Ertter 1996-5-11 14644 Contra Costa North Gate Road at northwest base of Mount Diablo, Ticle Pond west of road toward Castle Rock. Comment
  RSA0027710  Stuckenia pectinata Barbara Ertter, Chris Thayer 1996-10-25 15371 Contra Costa Northwest flank of Mount Diablo. Tick Pond at arc of Falcon Road between North Gate Road and Castle Rock. 183 Comment
  JEPS116497  Stylocline gnaphaloides J. Greenhouse with John Game 2008-5-26 5128 Contra Costa Lime Ridge Open Space, Paradise Canyon Trail above subdivision Comment
  CAS-BOT-BC422920  Stylomecon heterophylla James McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  CAS-BOT-BC422921  Stylomecon heterophylla R. F. Hoover 1968-5-16 11091 Contra Costa Upper Marsh Creek. Comment
  UC635478  Stylomecon heterophylla H. L. Mason 1928-4-1 4271 Contra Costa hills n Mount Diablo (canyon back of Pittsburg); hills n of Mount Diablo Comment
  CAS-BOT-BC422906  Stylomecon heterophylla W. W. Carruth 1900-5-1 s.n. Contra Costa Moraga Valley Comment
  CAS-BOT-BC422918  Stylomecon heterophylla W. C. Blasdale 1891-4-26 s.n. Contra Costa Point Isabel Comment
  RSA446228  Stylomecon heterophylla Glenn A. Gorelick 1967-5-20 s.n. Contra Costa Russelman Park, Mt. Diablo State Park Comment
  UC72722  Stylomecon heterophylla Miss Carlotta Case July 1904 Contra Costa Muir Station; beside track Comment
  UC407387  Suaeda moquinii Ira L. Wiggins 1930-4-17 4585 Contra Costa Byron Hot Springs Comment
  SEINET4172257  Suaeda nigra J. B. Davy s.n. Contra Costa Mount Diablo, Sivermore Pass Comment
  CAS-BOT-BC269694  Symphoricarpos mollis Alice Eastwood 1915-6-21 4726 Contra Costa San Leandro Comment
  OBI75132  Symphoricarpos mollis D. G. Kelch, D. A. Weinstein 2008-4-25 8 .084 Contra Costa Alvarado Park (W end of Wildcat Canyon Park) 122 Comment
  UC1005951  Symphoricarpos orbiculatus N. Floy Bracelin 1943-3-8 2430 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1555363  Symphyotrichum lentum Jerry Powell 1988-9-28 1548 Contra Costa Point Molate West Richmond Comment
  UC1618315  Symphyotrichum lentum Barbara Ertter, CNPS 1990-9-16 9647 Contra Costa Bethel Island Franks Tract State Recreation Area (ne of Brentwood, e end of Gateway Rd. at w edge of Recreation Area, base of lawn-covered levee at water's edge) Comment
  UC912542  Symphyotrichum subulatum Herbert L. Mason 1929-9-21 5439 Contra Costa 1 mi from junction of Borden Highway and road to Antioch Comment
  SD175790  Symphyotrichum subulatum var. parviflorum D. G. Kelch 2006-9-15 06 472 Contra Costa Martinez, Waterfront Road Marina Dr., 100 m. west of Pacheco Slough. 2 Comment
  UCD159500  Symphyotrichum subulatum var. parviflorum D. S. Park 2010-9-11 250 -1 Contra Costa Waterfront Rd. Growing along roadside. Disturbed. Wet. 5 Comment
  UCD159501  Symphyotrichum subulatum var. parviflorum D. S. Park 2010-9-11 250 -2 Contra Costa Waterfront Rd. Growing along roadside. Disturbed. Wet. 5 Comment
  CAS-BOT-BC98330  Symphyotrichum subulatum var. parviflorum Walter Knight 1978-7-1 3107 Contra Costa Martinez waterfront, near mouth of Alhambra Creek Comment
  CAS-BOT-BC99396  Symphyotrichum subulatum var. parviflorum W. L. Jepson 1891-9-16 s.n. Contra Costa at New Town landing, Lower Sacramento River Comment
  CDA31087  Taeniatherum caput-medusae D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .226 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  UC2028177  Taraxacum laevigatum Barbara Ertter 1998-5-3 16042 Contra Costa Pine Canyon/Stage Road upstream from Dusty Road junction, southwest flank of Mount Diablo. Comment
  UC1084407  Taraxia ovata G. Thomas Robbins 1937-4-17 115 Contra Costa slopes near Point Richmond Comment
  CAS-BOT-BC447423  Tellima grandiflora Elsie Zeile 1909-4-18 s.n. Contra Costa Redwood Peak Comment
  UC329929  Tetrapteron graciliflorum J. G. Lemmon Apr. 1878 242 Contra Costa side Diablo 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
  UC1543094  Thysanocarpus curvipes Donald G. Nelson 1937-3-30 465 Contra Costa on bank of creek along Marsh Creek Highway about halfway between Clayton and Byron; along Marsh Creek Highway Comment
  UC614830  Thysanocarpus curvipes Beryl O. Schreiber 1932-3-27 163 Contra Costa near Antioch; near Antioch 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-BC88253  Thysanocarpus curvipes John Thomas Howell 1934-4-1 11821 Contra Costa Marsh Creek Road southwest of Brentwood. Comment
  SEINET10904232  Thysanocarpus curvipes var. elegans John T. Middleton 1936-4-18 Middleton 141 Contra Costa Briones valley. Comment
  UC11040  Thysanocarpus laciniatus W. H. Brewer 1862-5-14 1097 Contra Costa Mount Diablo, Eagle Peak Comment
  JEPS100127  Torilis nodosa G. Smick 2003-5-8 GAS 186 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS63917  Toxicodendron diversilobum W. L. Jepson 1894-9-7 13913 Contra Costa Bald Peak near Berkeley; Bald Peak Comment
  UC606762  Toxicodendron diversilobum Edward Lee 1936-4-19 2014 Contra Costa bluffs along n.e. shore of Red Rock Isl.; San Francisco Bay, Red Rock Isl. Comment
  UC1795842  Trichostema lanceolatum Barbara Ertter, M. L. Bowerman, L. Schultheis, Kevin Hintsa 1995-10-22 14530 Contra Costa Three Springs Trail on northeast side of Mt. Diablo, south of crest of Marsh Creek Rd., dried roadside pond, clay. Comment
  SD86680  Trientalis latifolia Helen V. Witham 1972-5-10 1740 Contra Costa steep north slope, Hucleberry Trail, Oakland Comment
  UC1614107  Trifolium Charles M. Belshaw 1935-6-24 790 Contra Costa ca. 1/2 mi. e. Grizzly Peak (Bald Peak); Bald Peak Comment
  JEPS65688  Trifolium albopurpureum var. albopurpureum W. L. Jepson 1917-4-14 6860 Contra Costa Oakland Hills Comment
Read comments Dec 17 2008
  UC2028277  Trifolium albopurpureum var. dichotomum Barbara Ertter, Susan D'Alcamo 1999-4-18 16503 Contra Costa Bald Ridge Trail on NW side of Mount Diablo summit. Comment
  UC16605  Trifolium albopurpureum var. olivaceum W. H. Brewer 1862-4-30 1019 Contra Costa Camp 69 Walnut Creek Comment
  CDA29497  Trifolium bifidum D. G. Kelch, Troy MacGregor 2009-5-1 9 .273 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  UC16439  Trifolium bifidum var. bifidum W. H. Brewer 1862-5-29 1184 Contra Costa Camp 71 Marsh's Ranch; Marsh's Ranch, Camp 71, Contra Costa Co. Comment
  UC631337  Trifolium bifidum var. decipiens Mrs. K. Brandegee 1907-5-1 Contra Costa Antioch Comment
  POM203635  Trifolium bifidum var. decipiens J. T. Howell 1933-5-14 11264 Contra Costa Hills east of St. Marys college Comment
  CDA28898  Trifolium campestre D. G. Kelch, Jessica Kolman 2009-5-29 9 .309 Contra Costa Carquinez Strait; Pinole Valley Park, near ridgetop. Comment
  JEPS100111  Trifolium ciliolatum G. Smick 2003-5-8 GAS 184 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1607585  Trifolium ciliolatum Barbara Ertter 1991-6-1 10077 Contra Costa w Danville (in hills at n end of Rocky Ridge Trail); Las Trampas Regional Wilderness 548 Comment
  UC400158  Trifolium ciliolatum Ynes Mexia 1929-4-21 2373 Contra Costa Moraga Valley Comment
Read comments Aug 31 2007
  UC692460  Trifolium ciliolatum Mary L. Bowerman 1935-4-28 2926 Contra Costa e Pioneer Camp (ridge at w end of willizenii Flat); Mount Diablo Comment
  UC16416  Trifolium depauperatum var. amplectens Edw. L. Greene 1889-3-24 Contra Costa Byron Comment
  RSA349410  Trifolium depauperatum var. amplectens L. S. Rose 1941-3-27 41068 Contra Costa 2 mi. w. of Byron 61 Comment
  JEPS2905  Trifolium depauperatum var. depauperatum E. L. Greene April, 1884 Contra Costa Byron Comment
  UCSC011137  Trifolium depauperatum var. laciniatum R. Morgan 2015-4-11 6740 Contra Costa Byron Comment
  UCD84949  Trifolium depauperatum var. truncatum Chuck Hughes 2010-3-29 221 Contra Costa About 0.4 mile southeast of Vasco Road. 124 Comment
  RSA0027920  Trifolium depauperatum var. truncatum Barbara Ertter 1998-4-4 15957 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, summit of northwestern-most ridge. Comment
  UCD108394  Trifolium depauperatum var. truncatum P. B. Kennedy 1929-4-21 10227 Contra Costa Franklin Canyon Road from Concord Soldier's Monument. Comment
  POM18457  Trifolium dichotomum C. F. Baker 1903-4-27 2797 Contra Costa Byron. Comment
  UC1607614  Trifolium fragiferum Barbara Ertter, Brad Olson 1993-8-8 12199 Contra Costa sw San Ramon; Bishop Ranch Regional Open Space Comment
  RSA0027401  Trifolium fragiferum Barbara Ertter 1999-7-17 16764 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, Wildcat Creek Trail between Rifle Range Road and boundary with Tilden Regional Park. Comment
  UC764679  Trifolium fucatum R. F. Hoover 1941-4-12 4837 Contra Costa 1 mi n Lone Tree Valley Comment
  SEINET12147993  Trifolium fucatum Unknown 1878-1 s.n. Contra Costa Near Mt. Diablo Comment
  UC631617  Trifolium fucatum P. B. Kennedy 1928-4-28 10094 Contra Costa 2 mi from Tunnel (on hwy) Comment
  RSA61570  Trifolium gracilentum J. T. Howell 1933-5-14 11249 Contra Costa Hills east of St. Marys college Comment
  JEPS100105  Trifolium hirtum G. Smick 2003-4-8 GAS 124 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD146715  Trifolium incarnatum G. F. Hrusa; D. Crowe 1998-5-8 14364 Contra Costa Sacramento-San Joaquin River Delta. Within Dow Chemical property at Pittsburg. 10 Comment
  CDA29061  Trifolium microcephalum D. G. Kelch 2006-5-7 6 .149 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  JEPS100106  Trifolium microcephalum G. Smick 2003-5-1 GAS 164 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC400151  Trifolium microdon Ynes Mexia 1929-4-21 2380 Contra Costa Moraga Valley Comment
  UC692248  Trifolium microdon Mary L. Bowerman 1931-4-25 752 Contra Costa 2 mi from west entrance (=North Gate); Mount Diablo Comment
  UC764715  Trifolium microdon R. F. Hoover 1939-4-25 4066 Contra Costa Richmond hills Comment
  JEPS100109  Trifolium oliganthum G. Smick 2003-3-25 GAS 85 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA0027700  Trifolium oliganthum Barbara Ertter, Dan Norris 2001-4-15 17609 Contra Costa West side Mount Diablo, head of W-facing drainage west of China Wall rock formation (off trail between Hanging Valley Trail and China Wall Road). 274 Comment
  CDA29549  Trifolium subterraneum D. G. Kelch, Troy MacGregor 2009-5-1 9 .283 Contra Costa Carquinez Strait; Fernandez Ranch in valley bottom along Christie Rd. Comment
  JEPS102894  Trifolium tomentosum Barbara Ertter 1998-5-3 16063 Contra Costa NW end of connector trail between BBQ Terrace Road and Wall Point Road Mount Diablo State Park 365 Comment
  RSA0033769  Trifolium tomentosum Barbara Ertter 1998-5-3 16063 Contra Costa Connector trail between Barbeque Terrace Road and Wall Point Road. 365 Comment
  CDA29759  Trifolium willdenovii D. G. Kelch, Troy MacGregor 2009-5-1 9 .264 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  UC555578  Trifolium willdenovii H. L. Mason 1929-4-25 5206 Contra Costa Marsh Creek Rd Comment
  UC55885  Trifolium willdenovii H. M. Hall 1901-3-22 1705 Contra Costa Martinez Comment
  UC579847  Trifolium willdenovii Annetta Carter 1936-4-19 1110 Contra Costa e side of island Red Rock Comment
  UC692241  Trifolium willdenovii Mary L. Bowerman 1930-6-5 251 Contra Costa 5.8 mi from entrance (w rd = n rd); Mount Diablo Comment
  CAS-BOT-BC451964  Triglochin striata Walter Knight; I. Knight; J. T. Howell; E. McClintock; S. Rae; B. Doyle 1978-9-5 3213 Contra Costa Botany Cove, Browns Island. Comment
  POM300987  Triodanis biflora Mary L. Bowerman 1933-5-18 2130 Contra Costa Mount Diablo. Comment
  JEPS68957  Triphysaria eriantha subsp. eriantha Edward Lee 1935-3-10 1289 Contra Costa Kirker Pass, Donovan Road, west Watershed of Kirker Creek Kirker Pass; , Donovan Road Comment
  UC1301191  Triphysaria eriantha subsp. eriantha Helen K. Sharsmith 1963-4-7 5288 Contra Costa e side Kirker Pass road w Antioch (San Francisco Bay Region); , Kirker Pass Road 152 Comment
  CDA29048  Triphysaria pusilla D. G. Kelch 2006-5-7 6 .157 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  UC691572  Triphysaria pusilla Mary L. Bowerman 1933-5-4 1989 Contra Costa (Rock City Ridge) Fossil Ridge Mount Diablo; , (Rock City Ridge) Fossil Ridge Comment
  CDA29245  Triteleia laxa D. G. Kelch 2004-5-9 4 .204 Contra Costa Carquinez Strait Region; Crockett - Upper Edwards Canyon above Crockett Boulevard. Comment
  CHSC21624  Triteleia laxa Willis Ball 1975-3-25 505 Contra Costa In area #1. On s side of road leading to main parking lot at s end of lake ca. 35 yds e of parking lot. Contral Costa Regional Park. 38 Comment
  JEPS25139  Triteleia laxa G. Thomas Robbins 1959-5-16 4009 Contra Costa just n Pt. Orient (on w slope of Potrero Hills, Richmond, overlooking San Francisco Bay); Richmond, Potrero Hills Comment
  POM203716  Triteleia laxa J. T. Howell 1931-5-12 6468 Contra Costa Oakland Hills Comment
  UC2028145  Triteleia laxa Barbara Ertter 1998-4-4 15970 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, Fossil Hill. Comment
  CAS-BOT-BC67349  Tropidocarpum capparideum Edw. L. Greene 1889-3-23 s.n. Contra Costa Byron. Comment
  LA204485  Tropidocarpum capparideum Robert F. Hoover; 1936-3-19 806 Contra Costa Byron Hot Springs Comment
  UC596401  Tropidocarpum capparideum R. F. Hoover 1936-3-19 806 Contra Costa Byron Hot Springs Comment
  CAS-BOT-BC67410  Tropidocarpum gracile James McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  CAS-BOT-BC67409  Tropidocarpum gracile Charles Piper Smith 1922-4-15 3493 Contra Costa Antioch - S.P. depot - 0.5 mile east. Comment
  SEINET12007177  Tropidocarpum gracile L. S. Rose 1934-1 34066 Contra Costa 6 mi E of Clayton Comment
  CAS-BOT-BC80208  Tsuga mertensiana subsp. grandicona Phil Blumberg; M. Polland; R. Barnet; J. MacCarthy 1962-8-7 s.n. Contra Costa Bryan Meadows Comment
  SFV8563  Typha angustifolia R. C. Martin 1968-5-18 24 Contra Costa San Pablo Bay, 3 miles south of Pinole Point. In marsh. Comment
  UC2028519  Typha latifolia Barbara Ertter 1996-11-24 15429 Contra Costa West side of Mount Diablo, Pine Pond along Stage Road in Pine Canyon. Comment
  UC2028237  Ulmus pumila Barbara Ertter, Tony Morosco 1998-9-18 16434 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, above sand quarry [subsequently developed] on south side of Ygnacio Valley Road. Comment
  JEPS112487  Umbellularia californica D. G. Kelch 2003-2-7 03 .37.B Contra Costa Franklin Canyon 115 Comment
  UC1126330  Umbellularia californica R. W. Lundh 1933-3-1 203 Contra Costa Eastport 243 Comment
  OBI13419  Umbellularia californica H. E. McMinn, E. Maino 1931-2-15 13 Contra Costa Leona Heights Comment
Read comments May 22 2013
  CAS-BOT-BC381828  Uropappus lindleyi Mary L. Bowerman 1935-4-17 2831 Contra Costa Mount Diablo. West road 2 miles from entrance 237 Comment
  UC36691  Uropappus lindleyi H. M. Hall 1901-4-5 1731 Contra Costa Mt. Diablo 457 Comment
  UC691467  Uropappus lindleyi Mary L. Bowerman 1933-5-2 1954 Contra Costa below Pionner Camp (Mount Diablo); Mount Diablo 762 Comment
  UC691797  Uropappus lindleyi Mary L. Bowerman 1931-4-4 632 Contra Costa two mi by road from North Gate Mount Diablo (Mount Diablo); Mount Diablo Comment
  UC2029095  Urospermum picroides Barbara Ertter 1990-6-18 9133 Contra Costa Tilden Regional Park, along Nimitz hiking/bicycle trail near Inspiration Point Comment
  CAS-BOT-BC403927  Urtica dioica subsp. gracilis Joseph Andorfer Ewan 1934-1-14 8160 Contra Costa Wildcat Canyon, one mile below ranch house Comment
  UCR142707  Urtica dioica subsp. holosericea Joseph A. Ewan 1933-10-15 8018 Contra Costa San Francisco Bay Region, South West slope of Mount Diablo 1159 Comment
  CHSC116352  Urtica urens D. G. Kelch 2006-2-25 6084 Contra Costa Carquinez Strait: Crockett. Edwards Canyon. 53 Comment
  UCD164894  Urtica urens Henry House 1995-4-30 1995- 1 Contra Costa About 1 km west of Walnut Blvd., ca. 0.5 km south of Marsh Creek Rd. 60 Comment
  UC2028520  Urtica urens Barbara Ertter 1997-1-5 15438 Contra Costa Lime Ridge Open Space on northwest side of Mount Diablo, section on north side of Ygnacio Valley Road. Comment
  UC2028528  Urtica urens Barbara Ertter 1998-1-4 15887 Contra Costa South end Diablo Foothills Regional Park southeast of Walnut Creek, Alamo Trail near junction with Hanging Valley Trail. Comment
  UC1121122  Vaccinium ovatum R. W. Lundh 1933-1-12 186 Contra Costa 0.5 mi s Round Mt.; Concord Quad. 609 Comment
  UCSB26353  Vaccinium ovatum Havlik, Neil 1969-3-25 Contra Costa Grizzly Peak, just below the summit 518 Comment
  UC1124419  Verbena lasiostachys var. scabrida H. S. Yates 1934-9-2 4069 Contra Costa 1 mi sw Mt Diablo; Mt Diablo Quadrangle Comment
  UC1819025  Verbena lasiostachys var. scabrida Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14633 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
  UC1050697  Veronica latifolia N. Floy Bracelin 1941-4-13 1159 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS16491  Veronica peregrina subsp. xalapensis W. L. Jepson 1940-6-5 19932 Contra Costa Richmond Comment
  UC1789154  Viburnum ellipticum Barbara Ertter 2001-9-16 17808 Contra Costa Briones Regional Park, Toyon Canyon Trail, shaded west-facing slope with Ptelea. Comment
  UC1050363  Viburnum trilobum N. Floy Bracelin 1943-7-25 2187 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UCSB12524  Vicia americana Grah, Nancy 1962-4-4 Contra Costa 1.4 miles north of Tarry Lane on Tappen Lane, Orinda 243 Comment
Read comments Mar 15 2008
  JEPS66137  Vicia americana var. americana W. L. Jepson May 23 1891-May 24 1891 13614 Contra Costa Mt. Diablo Comment
  UC1586040  Vicia americana var. americana Barbara Ertter with John Little 1989-4-2 8104 Contra Costa n end Hillside Park, El