Search Results — 2000 specimen records retrieved (1352 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
  LA35665  Abies bracteata Rimo Bacigalupi; 1960-4-4 7360 Contra Costa Santa Lucia Mts, Wildcat Canyon, Berkely Hills, on short side of road to corporation yard 297 Comment
  JEPS87956  Acacia melanoxylon Barbara Ertter 1991-5-12 9815 Contra Costa in sw corner El Cerrito (Point Isabel Regional Shoreline, along old railroad right-of-way between bay and salicornia marsh); San Francisco Bay, Point Isabel Regional Shoreline Comment
  UC1719706  Acacia retinodes Barbara Ertter 1995-1-14 13922 Contra Costa N side of Cerrito Creek at edge of mall E of Pierce St. Comment
  UC1779711  Acacia verticillata Rudolf Schmid 1997-5-21 1997 -12 Contra Costa Hillside Natural Area, El Cerrito; NW of King Ct. entrance. 175 Comment
  CAS-BOT-BC436989  Acaena pinnatifida var. californica John Thomas Howell 1933-5-14 11285 Contra Costa Hills east of St. Mary's College Comment
  UC18099  Acer negundo J. Burtt Davy 1895-4-13 1012 Contra Costa Lafayette Comment
  JEPS42724  Acer negundo var. californicum W. L. Jepson 1908-8-16 3088 Contra Costa 2 mi w Walnut Creek; w of Walnut Creek Comment
  UC579853  Achillea millefolium Annetta Carter 1936-4-19 1116 Contra Costa hollow e side of island Red Rock; San Francisco Bay Comment
  UC691726  Achillea millefolium Mary L. Bowerman 1931-4-25 751 Contra Costa 2 mi by road from Mt. Diablo West Entrance; Mount Diablo Comment
  HSC91986  Achyrachaena mollis Scott Brush, Ross Jones, Maggie Wolfe 1990-4-29 75 Contra Costa 549 Comment
  UC1733837  Achyrachaena mollis Kay H. Beach 1941-4-30 1081 Contra Costa 5 mi W of Byron; Marsh Creek Road 30 Comment
  UC565420  Achyrachaena mollis Chas. M. Belshaw 1935-5-24 778 Contra Costa n face Bald Peak; Oakland and Berkeley Hills, Bald Peak Comment
  UCD164888  Achyrachaena mollis Henry House 1995-4-30 1995- 7 Contra Costa About 1 km west of Walnut Blvd., ca. 0.5 km south of Marsh Creek Rd. 60 Comment
  OBI48824  Achyrachaena mollis Joseph Andorfer Ewan 1935-5-26 9312 Contra Costa E slope Bald Peak, San Pablo Ridge 549 Comment
  POM181443  Achyrachaena mollis I. L. Wiggins 1930-4-17 s.n. Contra Costa 1 mile E of Mountain House on road to Byron Comment
  POM54982  Achyrachaena mollis C. F. Baker 1903-4-27 15565 Contra Costa Byron. Comment
  UCD128425  Achyrachaena mollis L. S. Smith 1916-5-10 s.n. Contra Costa Grand View Terrace, San Pablo. Comment
  JEPS111513  Acmispon glaber Dean G. Kelch and Andrew G. Murdock 2005-5-13 05 .276 Contra Costa Martinez - West: Ozol Rock and Scenic Drive. Comment
  CDA19145  Acroptilon repens R. M. Case 2001-7-1 PDR P 088757 Contra Costa San Francisco Bay Region; In East Bay Municipal Utility District Water Department on Hookston Rd 1, Pleasant Hill. 0 Comment
  CDA35657  Acroptilon repens Vince Guise 2011-8-2 PDR# 1649692 Contra Costa Discovery Bay; southwest corner of Discovery Bay Blvd. and Clipper Dr. 0 Comment
  CDA36365  Acroptilon repens Chris Denijs 2011-9-14 PDR# 1454138 Contra Costa 4571 Orwood Rd., Brentwood. 0 Comment
  UC905259  Actaea rubra J. A. Rattenbury 1949-3-10 129 Contra Costa 1/2 mi. e. Oakland Tunnel (on s. side of hwy. above creek) 243 Comment
  HSC93903  Adiantum jordanii C. Newberry 1994-4-30 7255 Contra Costa Mt. Diablo State Park, trail from Mitchell Canyon Parking to Donner Creek 900 Comment
  JEPS40101  Aesculus californica W. L. Jepson 1923-6-10 9984 Contra Costa Mt. Diablo Comment
  JEPS99561  Agoseris grandiflora Mary Bowerman 1995-7-2 Contra Costa Mount Diablo, (probably Back Canyon or foot trail to Donner Canyon). Comment
  JEPS75562  Agoseris grandiflora var. grandiflora P. F. Yorks 1975-5-15 400 Contra Costa ca 1.6 km s, on Hampton Rd in Hampton Road National Reserve Bear Creek Road; Briones Reservoir, Hampton Road National Reserve 180 Comment
  UC202932  Agoseris grandiflora var. grandiflora Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  UC2028118  Agoseris heterophylla Barbara Ertter with Richard K. Brummitt 1998-5-6 16091 Contra Costa Lower Donner Canyon on north base of Mount Diablo, Hetherington Trail upstream from Donner Cabin. Comment
  UC691794  Agoseris heterophylla var. heterophylla Mary L. Bowerman 1933-5-18 2127 Contra Costa grassy slope Blackberry Spring; Mount Diablo Comment
  POM300723  Agrostis Mary L. Bowerman 1933-8-26 2413 Contra Costa Mount Diablo. At and below Lower Canyon Spring. 976 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
  UC2028512  Agrostis hallii Barbara Ertter 1996-11-24 15416 Contra Costa Southwest side of Mount Diablo, Wall Point Road across Pine Ridge ca 1/2 air miles ENE of Macedo Ranch. Comment
  UC2028526  Agrostis hallii Barbara Ertter 1997-11-1 15883 Contra Costa South side Mount Diablo, end of spur road east of Knobcone Point, below powerline crossing at head of Alamo Creek drainage. Comment
  CDA29913  Agrostis pallens D. G. Kelch, Suzanne Latham, Matt Beyers 2009-6-3 9 .335 Contra Costa East Bay.; El Sobrante Ridge at end of Silver Belt Dr. on Miocene chert outcrop. Comment
  CDA31461  Agrostis pallens D. G. Kelch 2006-5-27 6 .217 Contra Costa Pinole Valley Park, S of Pinole Valley Road near crest of El Sobrante Ridge. Comment
  CDA31463  Agrostis pallens D. G. Kelch 2006-6-3 6 .22 Contra Costa 2 km N-NW of Orinda Village. NW of corner of San Pablo Dam Rd & Bear Valley 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
  UC606759  Agrostis pallens Edward Lee 1936-4-19 2008 Contra Costa ne slope of island San Francisco Bay, Red Rock Comment
  UC2029195  Agrostis stolonifera Barbara Ertter 2000-7-16 17383 Contra Costa Diablo Foothills Regional Park, riparian strip along Pine Creek between Castle Rock Regional Recreation Area Comment
  JEPS100029  Aira caryophyllea S. O'Neil 2003-5-1 SEO 23 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC579859  Aira caryophyllea Annetta Carter 1936-4-19 1122 Contra Costa Red Rock San Francisco Bay (e side of island) Comment
  CAS-BOT-BC445382  Alisma plantago-aquatica Mary L. Bowerman 1935-9-13 3331 Contra Costa Mount Diablo. Chase Pond Comment
  UCR197913  Alisma triviale Beecher Crampton 1950-6-10 589 Contra Costa 1 mile north of Richmond, along Santa Fe Railroad 15 Comment
  CAS-BOT-BC175356  Allenrolfea occidentalis C. Hart Merriam 1906-9-13 s.n. Contra Costa Byron Hot Springs Comment
  CDA9505  Allenrolfea occidentalis D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .232 Contra Costa Byron Airport. Comment
  UCD33561  Allenrolfea occidentalis Beecher Crampton 1970-3-10 8536 Contra Costa 1 mile S of Byron, Byron Hot Springs road. Comment
  UCR52247  Allenrolfea occidentalis E. E. Stanford 1930-5-24 1520 Contra Costa Near Byron 25 Comment
  RSA411795  Allenrolfea occidentalis E. E. Stanford 1930-5-24 1520 Contra Costa Near Byron. Comment
  UC692023  Allium falcifolium Mary L. Bowerman 1930-6-14 333 Contra Costa summit Mount Diablo Mount Diablo Comment
  CAS-BOT-BC469111  Allium falcifolium L. R. Abrams 1921-5-25 2038 Contra Costa Summit Mt. Diablo Comment
  CAS-BOT-BC469115  Allium falcifolium John Thomas Howell 1941-4-6 16179 Contra Costa Ridge east of Deer Flat, Mt. Diablo Comment
  RSA59638  Allium falcifolium Verne Grant, Alva Grant 1950-5-13 8898 Contra Costa North slope of Meridian Peak. Comment
  UC635249  Allium serra H. L. Mason 1929-3-29 5135 Contra Costa Marsh Creek Road 2 mi e Claton; Marsh Creek Road Comment
  UCSC000149  Allium serra Beryl O. Schreiber 1932-3-27 127 Contra Costa Mountain House Comment
  CAS-BOT-BC475534  Allium serra W. H. Brewer 1862-4-25 994 Contra Costa Martinez Comment
  CAS-BOT-BC475538  Allium serra Mary L. Bowerman 1930-6-18 338 Contra Costa Rock City Canyon; Mount Diablo Comment
  CAS-BOT-BC475541  Allium serra Paul F. Covel 1938-5-8 1529 Contra Costa Low south slope Mount Diablo Comment
  RSA59637  Allium serra Verne Grant, Alva Grant 1950-5-13 8896 Contra Costa Saddle between N & Meridian peaks, Mt. Diablo. Comment
  UC3105  Allium serra H. P. Chandler 1900-3-23 573 Contra Costa Pleasant Valley Comment
Read comments Aug 23 2008
  UC692029  Allium serra Mary L. Bowerman 1932-4-16 1361 Contra Costa Eagle Point ridge n 1862 point (canyon between the two ridges); Mount Diablo, Eagle Point ridge Comment
  UC3113  Allium unifolium W. L. Jepson May 23 1891-May 24 1891 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC476606  Allium unifolium Mrs. E. C. Wright 1917-6-1 s.n. Contra Costa Mt. Diablo Comment
  UC692021  Allium unifolium Mary L. Bowerman 1933-5-22 2165 Contra Costa flat at head of n ridge w 1970; Mount Diablo, Inner Black Hills Comment
  UC691631  Allophyllum divaricatum Mary L. Bowerman 1933-5-2 1941 Contra Costa below Pioneer Camp (Mt. Diablo); Mt. Diablo 762 Comment
  UCD118009  Allophyllum divaricatum P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UC1135145  Alnus rhombifolia R. W. Lundh 1932-9-22 170 Contra Costa Sycamore Creek Mt. Diablo Quadrangle 228 Comment
  JEPS111587  Amaranthus albus A. G. Murdock 2004-5-28 303 Contra Costa Luzon Roadside 60 Comment
  UC691919  Amaranthus albus Mary L. Bowerman 1930-9-27 466 Contra Costa 2.25 mi by rd from Mt. Diablo north entrance (take trail by trough westerly, follow fence and go through, West Base spring); Mt. Diablo, West Base Spring Comment
  JEPS111588  Amaranthus retroflexus D. G. Kelch 2004-6-19 04 .286 Contra Costa Crockett - Edwards Canyon Edwards Creek staging area near barn. 24 Comment
  UC2028560  Amaryllis belladonna Barbara Ertter with Mary Barkworth 2000-9-24 17528 Contra Costa North side Mount Diablo, near former well at Donner Cabin site on Donner Creek. Comment
  UCD33151  Ampelodesmos mauritanicus Beecher Crampton 1966-10-18 7816 Contra Costa Contra Costa County, Kensington, Berkeley Hills Blake Garden, UC Berkeley Dept. of landscape architecture. Comment
  CHSC21836  Amsinckia Robert A. Schlising 1962-4-7 2150 Contra Costa In grass of roadside near Antioch Reservoir. Comment
  CAS-BOT-BC222227  Amsinckia Alice Eastwood; John Thomas Howell 1936-4-19 2131 Contra Costa Nortonville Comment
  CAS-BOT-BC222229  Amsinckia Alice Eastwood; John Thomas Howell 1936-4-19 2141 Contra Costa Somersville Comment
  UC78278  Amsinckia grandiflora T. S. Brandegee May 1887 Contra Costa Judsonville Comment
  JEPS111839  Amsinckia intermedia D. G. Kelch 2004-3-5 04 .11 Contra Costa Sky Ranch Dutra Fire Road. Franklin Canyon 90 Comment
  SBBG6220  Amsinckia intermedia J. M. Tucker 1946-3-24 1386 Contra Costa hills between Nortonville and Somersville Comment
  UC725924  Amsinckia intermedia A. A. Heller 1941-3-24 15905 Contra Costa Byron Springs Comment
  RSA0090980  Amsinckia intermedia Robert F. Hoover 1938-4-20 3179 Contra Costa Between San Pablo and Reservoir. Comment
  RSA32944  Amsinckia intermedia A. A. Heller 1938-4-9 15016 Contra Costa 3 miles southwest of Antioch Comment
  UC1094071  Amsinckia intermedia Francia Chisaki 1952-3-13 203 Contra Costa 0.25 mi s of Highway #50 (on Mountain House Road) Comment
  UC762022  Amsinckia lunaris R. F. Hoover 1938-4-20 3178 Contra Costa lower end San Pablo Resevoir Comment
  CAS-BOT-BC222460  Amsinckia lunaris Francia Chisaki; Peter Kamb 1952-5-4 2275 Contra Costa Bear Creek Road, 1.5 miles east of Orinda-Richmond road (leaving this road ca. 1 mile north of Orinda) Comment
  SD71397  Amsinckia menziesii John Thomas Howell 1933-5-14 11224 A Contra Costa St. Mary's College Comment
  JEPS18323  Amsinckia menziesii var. menziesii Rimo Bacigalupi with F. Chisaki 1957-3-27 5758 Contra Costa 1 1/2 mi e of Antioch (city limits, just e of Kaiser Gypsum Plant, along Wilbur Avenue Road) 9 Comment
  RSA0090978  Amsinckia scabra A. A. Heller 1941-3-23 15901 Contra Costa Mt. Diablo. Along the roadside about 2/3 up the mountain near a ditch. Comment
  CDA23562  Anagallis arvensis D. G. Kelch, D. A. Weinstein 2008-4-25 8 .081 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
  JEPS108327  Androsace elongata subsp. acuta David Gowen, Mike Parks 2005-3-6 177 Contra Costa Mt. Diablo State Park. North-facing slope not far from summit of Oyster Point. Comment
  UC35144  Androsace elongata subsp. acuta W. C. Blasdale 1896-2-28 Contra Costa w Clayton (Clayton) Comment
  UCD84947  Androsace elongata subsp. acuta Chuck Hughes 2010-3-29 219 Contra Costa About 0.7 mile south of Vasco Road. 239 Comment
  SEINET10576437  Androsace elongata subsp. acuta John G. Lemmon 1872-1 Lemmon s.n. Contra Costa Mt. Diablo. Comment
  CAS-BOT-BC400255  Anemopsis californica A. D. E. Elmer 1903-6-1 4870 Contra Costa Walnut Creek Comment
  UC4888  Anemopsis californica W. L. Jepson May 23 1891-May 24 1891 Contra Costa near Mount Diablo Comment
  POM169016  Anemopsis californica A. D. E. Elmer 1903-06 4870 Contra Costa Walnut Creek Comment
  JEPS111621  Angelica californica D. G. Kelch 2004-7-9 04 .308B Contra Costa Vaca Canyon Vaca Canyon 165 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
  UC692563  Angelica californica Mary L. Bowerman 1935-6-21 3149 Contra Costa Mount Diablo, e fork of Arroyo del Cerro Arroyo del Cerro; Mount Diablo, Arroyo del Cerro 274 Comment
  CDA29022  Anthriscus caucalis D. G. Kelch 2006-5-7 6 .161 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  RSA0008239  Antirrhinum elmeri A. D. E. Elmer 1903-06 4809 Contra Costa Mount Diablo Comment
  SEINET884570 Image available Antirrhinum elmeri A. D. E. Elmer 1903-1 4809 Contra Costa Mount Diablo. Comment
  UC2032826  Aphanes arvensis Doran, Andrew Scott 2012-3-20 696 Contra Costa Second highest point on Brooks Island below rocky outcrop Comment
  JEPS112078  Aphanes occidentalis D. G. Kelch 2003-4-3 03 .347 Contra Costa Cummings Skyway South of Cummings Skyway and Crockett Blvd 134 Comment
  SEINET3156065  Apiastrum angustifolium T. S. Brandegee sn Contra Costa Mt. Diablo Comment
  JEPS111632  Apocynum cannabinum D. G. Kelch 2004-7-9 04 .306 Contra Costa Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite 60 Comment
  SBBG50848  Arbutus menziesii A. Hartman 1960-4-19 9 D Contra Costa North Gate Rd, Mt Diablo St Park 609 Comment
  JEPS40128  Arceuthobium campylopodum W. L. Jepson 1898-10-18 1898 Contra Costa Mitchell Canyon Mt. Diablo 487 Comment
  UC615582  Arceuthobium campylopodum Beryl O. Schreiber 1933-10-5 937 Contra Costa rd to Mt Diablo Comment
  RSA121965  Arctostaphylos andersonii var. pallida B. O. Schreiber 1938-9-18 2548 Contra Costa 0.5 miles south southwest of Round Top. 335 Comment
  CAS-BOT-BC24108  Arctostaphylos auriculata Alice Eastwood; John Thomas Howell 1936-4-19 2130 Contra Costa Nortonville Comment
  CAS-BOT-BC24113  Arctostaphylos auriculata Brandegee 1889-1-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC24123  Arctostaphylos auriculata Brandegee 1889-1-1 s.n. Contra Costa Antioch Comment
  JEPS19884  Arctostaphylos auriculata W. L. Jepson 1922-5-23 9662 Contra Costa Head of Sycamore Creek Monte 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
  JEPS96259  Arctostaphylos auriculata Dean Kelch 1995-3-14 97 .15 Contra Costa Rock City Mt. Diablo; e. contra Costa Co., , Rock City 457 Comment
  RSA202870  Arctostaphylos auriculata Edward Lee 1936-1-12 1713 Contra Costa Immediately south of Nortonvillep Comment
Read comments Aug 25 2011
  SD69999  Arctostaphylos auriculata Darley F. Howe 1968-5-21 4519 Contra Costa Mount Diablo. Comment
  UC1200413  Arctostaphylos auriculata Edward Lee 1936-1-12 1713 Contra Costa w-facing slope immediately s Nortonville Comment
  UC549567  Arctostaphylos auriculata J. E. Adams 1934-3-19 678 Contra Costa Mt. Diablo Comment
  UC549568  Arctostaphylos auriculata J. E. Adams 1934-3-19 672 Contra Costa Mt. Diablo Comment
  UC692479  Arctostaphylos auriculata Mary L. Bowerman 1933-3-25 1773 Contra Costa top Pine Canyon Ridge (s-facing slope between the two forks); Mount Diablo, Emmons Canyon (off Stone Valley) Comment
  UC83034  Arctostaphylos auriculata Katharine Brandegee 1889-1 Contra Costa Antioch Comment
  UCD50261  Arctostaphylos auriculata W. B. McHenry 1975-1-31 Contra Costa On ranch off of Ygnacio Valley Road, ca. 5 miles northeast of Walnut Creek. Comment
  UCD50263  Arctostaphylos auriculata Roman Gankin 1968-11-14 1310 Contra Costa Ca. 300 yds. above the road at Somersville. Comment
  UC2028019  Arctostaphylos auriculata Barbara Ertter 1997-9-14 15817 Contra Costa Southwest side of Mount Diablo, Wall Point Road on open sandstone ridge northwest of Wall Point. Comment
  SEINET11998374  Arctostaphylos canescens subsp. malloryi W. Knight, Knight, I. 1988-1 6478 Contra Costa Tilden Regional Park, Regional Parks Botanic Garden, originally from Iron Mt. in Shasta Co 914 Comment
  CDA33795  Arctostaphylos crustacea D. G. Kelch 2011-2-4 11 .017 Contra Costa Bear Creek Road west of Orinda near of Briones Park. 0 Comment
  CAS-BOT-BC23595  Arctostaphylos crustacea Gladys L. Smith 1966-4-9 s.n. Contra Costa Moraga Ridge (Pine Ridge section) Comment
  SEINET11987135  Arctostaphylos crustacea S. W. Edwards 1981-1 1001 Contra Costa Briones Regional Park, on ridge facing Russell Tree Farm Comment
  JEPS46405  Arctostaphylos glandulosa W. L. Jepson 1919-1-25 9209 Contra Costa Moraga Ridge Comment
  CAS-BOT-BC24660  Arctostaphylos glauca John Thomas Howell 1926-3-7 1674 Contra Costa Mt. Diablo. Comment
  JEPS38729  Arctostaphylos glauca W. L. Jepson 1916-10-22 6853 Contra Costa Las Trampas Ridge Comment
  JEPS38917  Arctostaphylos glauca Mary L. Bowerman 1933-3-11 1748 Contra Costa in gully nw park entrance (outer s face of ridge); Mount Diablo, Rock City Ridge Comment
  UC1795672  Arctostaphylos glauca Barbara Ertter, Holly Forbes 1996-2-11 14548 Contra Costa North side Mount Diablo; Murchio Gap on Median Ridge Road, chaparral on serpentine-derived clay; regrowth after burn of several years previous 731 Comment
  UC692232  Arctostaphylos glauca Mary L. Bowerman 1933-3-11 1748 Contra Costa in gully nw park entrance (outer s face of ridge); Mount Diablo, Rock City Ridge (=Fossil Ridge) Comment
  UC692234  Arctostaphylos glauca Mary L. Bowerman 1933-4-15 1857 Contra Costa canyon s Arroyo del Cerro (s edge of wooded gully); Mt. Diablo 381 Comment
  SEINET12524593 Image available Arctostaphylos manzanita L. S. Rose 1934-1 34040 Contra Costa S. slope mt. diablo, 8 mi NE. Danville. Comment
  UC549595  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-10-6 849 Contra Costa Mount Diablo Comment
  UC549751  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1935-3-19 688 Contra Costa Mt. Diablo Comment
  UC549753  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-3-19 684 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
  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-BC24385  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1932-1-23 1076 Contra Costa Mount Diablo, Sycamore canyon, east fork: near canyon bottom. Comment
  CAS-BOT-BC24392  Arctostaphylos manzanita subsp. manzanita Walter Knight 1979-5-31 3376 Contra Costa Morgan Territory Regional Land Bank. Comment
  CAS-BOT-BC24394  Arctostaphylos manzanita subsp. manzanita Brandegee 1889-1-1 5 Contra Costa Antioch. Comment
  SD107640  Arctostaphylos tomentosa subsp. crustacea Stephen W. Edwards 1981-1-5 1001 Contra Costa Biones Regional Park, from ridge facing Russell Tree Farm Comment
  UC1120106  Arctostaphylos tomentosa subsp. crustacea R. W. Lundh 1933-3-1 204 Contra Costa 1/2 mi n Pinehurst; Concord Quadrangle Comment
  UC549440  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1935-10-21 550 Contra Costa Moraga Ridge Comment
  UC549461  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 633 Contra Costa Moraga Ridge Comment
  UC549463  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 630 Contra Costa Moraga Ridge Comment
  UC549469  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 627 Contra Costa Moraga Ridge Comment
  UCD51867  Arctostaphylos tomentosa subsp. crustacea Edward Lee 1935-12-28 1702 Contra Costa Western end of Las Tampas Ridge, Contra Costa County. 426 Comment
Read comments Jul 2 2011
  UC2046014  Arctostaphylos viscida subsp. mariposa Stephen W. Edwards July, 2012 s.n. Contra Costa Pleasant Hill, along Taylor Blvd. Comment
  CAS-BOT-BC102183  Argyranthemum foeniculaceum G. Thomas Robbins; John Weiler 1959-5-23 4022 Contra Costa Breakwater portion of Brooks Island (its northwestern extension), San Francisco Bay, Richmond Comment
  CAS-BOT-BC82386  Arnica discoidea Mary L. Bowerman 1933-5-22 2173 Contra Costa Inner Black Hills: West of 1970 Comment
  UC29607  Arnica discoidea Brewer 1862-1 1302 Contra Costa Comment
Read comments Jan 20 2011
  CAS-BOT-BC90121  Artemisia biennis Evelina Cannon 1896-10-30 s.n. Contra Costa Giant Comment
  CAS-BOT-BC84953  Artemisia californica L. R. Abrams 1910-10-8 4339 Contra Costa Mt. Diablo 609 Comment
  JEPS36967  Artemisia californica W. L. Jepson 1916-10-22 6852 a Contra Costa Las Trampas Ridge southern Contra Costa County, Las Trampas Ridge Comment
  UC449651  Artemisia californica W. P. Taylor 1912-7-16 Contra Costa 2 mi sw Walnut Creek 121 Comment
  UC697143  Artemisia douglasiana Mary L. Bowerman 1932-9-17 1582 Contra Costa w fork Donner Canyon; Mount Diablo Comment
  CAS-BOT-BC90296  Artemisia douglasiana Mary L. Bowerman 1932-9-17 1582 Contra Costa Donner Canyon, west fork Comment
  SEINET11773093  Arum italicum F. Tahbaz, Ghavamzadeh, G. 1992-1 416 Contra Costa Orinda, by creek on Moraga Way, across street from Camino Moraga Comment
  CAS-BOT-BC400500  Asarum caudatum John Thomas Howell 1925-9-12 1439 Contra Costa San Leandro Canon [Canyon], Oakland Hills Comment
  UC2045295 Image available Asclepias californica Mary L. Bowerman 1932-9-24 1596 Contra Costa Ridge running west from Twin Peaks Comment
  SEINET10779730  Asclepias californica subsp. greenei D. G. Nelson 1937-4-24 Nelson 520 Contra Costa On Marsh Creek Road, between Byron and Clayton Comment
  CDA28791  Asclepias cordifolia D. G. Kelch, Troy MacGregor 2009-5-24 9 .302 Contra Costa Carquinez Strait; Carquinez Loop Trail S of Ozol, S-SW of Martinez, nr Wolcott Ln . Comment
  SEINET207365  Asclepias cordifolia Rimo Bacigalupi, G. Thomas Robbins 1956-5-11 5642 Contra Costa Franklin Canyon, 1/4 mile above (and northwest of) Glen Frazer Station on the Santa Fe Railway. 107 Comment
  UC691840  Asclepias fascicularis Mary L. Bowerman 1932-11-25 1667 Contra Costa Silver Spring Mount Diablo Comment
  JEPS79589  Aspidotis californica Edward Lee 1978-12-20 Contra Costa Devil's Elbow trail Mt Diablo 1036 Comment
  RSA721531  Aster chilensis Mary L. Bowerman 1993-10-19 s.n. Contra Costa Mount Diablo. Marsh Creek near Russelman Road. Comment
  RSA417742  Aster radulinus M. B. Dunkle 1931-7-18 2501 Contra Costa Strawberry Canyon, Berkeley 152 Comment
  RSA666355  Aster radulinus Barbara Ertter, Dianna Lake 1991-8-18 10675 Contra Costa Carquinez Strait Regional Shoreline east of Crockett, northeast of Bull Valley staging area Comment
  UC1606355  Astragalus asymmetricus Barbara Ertter with Dianne Lake 1991-8-18 10678 Contra Costa nw Bull Valley staging area (Carquinez Strait Regional Shoreline e of Crockett); Carquinez Strait Regioinal Shoreline e of Crockett Comment
  UC13351  Astragalus didymocarpus State Survey 1862-5-19 1115 Contra Costa Kirker Pass Kirker Pass (dry hills) Comment
  CAS-BOT-BC177883  Astragalus didymocarpus var. didymocarpus Brandegee 1889-5-1 s.n. Contra Costa Antioch Comment
  UC13421  Astragalus gambelianus W. H. Brewer 1862-5-12 1071 Contra Costa Monte Diablo Comment
  UC1949066  Astragalus gambelianus Barbara Ertter 2005-5-8 18566 Contra Costa Mount Diablo State Park, Burma Road below Moses Rock Spring on Long Ridge Comment
Read comments Feb 13 2016
  SEINET12162892  Astragalus oxyphysus W. Knight, Knight, I. 1982-1 4498 Contra Costa Tilden Botanic Garden, Berkeley, ca originally collected nr Somersville Comment
  CAS-BOT-BC193335  Astragalus tener var. tener Alice Eastwood 1914-3-14 3818 Contra Costa Byron Springs 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
  CAS-BOT-BC168564  Atriplex cordulata Walter Knight 1977-7-4 s.n. Contra Costa Black Diamond Mines Regional Preserve near Antioch. About 1 mile south of Contra Loma Regional Park 45 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
  CDA37399  Atriplex coronata D. G. Kelch, Mike Perlmutter 2011-9-23 11 .76 Contra Costa Entry to Discovery Bay. Comment
  CHSC98938  Atriplex coronata var. coronata Samantha Mackey Hillaire 2007-7-17 1243 b Contra Costa Briones Valley, ~0.2 mile west of Marsh Creek Reservoir. 60 Comment
  SEINET4134956  Atriplex heterosperma Howard C. Stutz 1990-8-17 95340 Contra Costa No. Livermore.; 0 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
  UC219415  Atriplex joaquinana H. M. Hall 1922-5-6 11801 Contra Costa s base Mt. Diablo; s base Mt. Diablo Comment
  CDA23285  Atriplex lentiformis subsp. breweri F. T. Swett 1960-9-23 Contra Costa Hill Girt Farm, Alhambra Valley, Martinez. 0 Comment
  CDA37400  Atriplex prostrata D. G. Kelch, Mike Perlmutter 2011-9-23 11 .763 Contra Costa Antioch. Dow Wetlands. Comment
  SEINET4136060  Atriplex prostrata Barbara Ertter, Elizabeth Neese 1988-10-15 7979 Contra Costa Salicornia marsh W of I-580 in El Cerrito, W side along Rydin Road N of Central Avenue.; 0 Comment
  JEPS111808  Atriplex triangularis D. G. Kelch 2003-8-13 03 .95 Contra Costa Martinez Marsh 1 Comment
  UC473576  Atriplex triangularis John Thomas Howell 1931-10-31 8163 Contra Costa Bay Point Comment
  CHSC116649  Avena barbata Lowell Ahart; Josephine Guardino 2016-4-19 20786 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the sides ot the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  UC53768  Avena barbata J. Burtt Davy Apr 1897 Contra Costa Point Isabel Comment
  UC692313  Avena barbata Mary L. Bowerman 1931-5-13 845 Contra Costa canyon floor 1 mi above suphur spring; Mount Diablo, Pine Canyon Comment
  UC697189  Avena barbata Mary L. Bowerman 1933-5-8 2002 Contra Costa Fossil Ridge Mount Diablo (s face, not far from but out of sight of South Gate) 289 Comment
  CAS-BOT-BC146024  Avena barbata John Thomas Howell 1983-5-12 54745 Contra Costa Mount Diablo. Juniper Camp. 914 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
  RSA385404  Avena fatua H. de Forest 1930-7-5 s.n. Contra Costa Roadside near Moraga. Comment
  UC691223  Avena fatua Mary L. Bowerman 1935-4-19 2853 Contra Costa West road 3.5 mi from entrance; Mount Diablo 381 Comment
  UC697125  Avena fatua Mary L. Bowerman 1931-5-7 809 Contra Costa North Peak Mount Diablo Comment
  CAS-BOT-BC145878  Avena fatua Mary L. Bowerman 1933-4-26 1911 Contra Costa Mount Diablo. North Peak ridge east-southeast of the peak. 609 Comment
  CAS-BOT-BC68349  Azolla Walter Knight 1978-10-4 3313 Contra Costa Browns Island, Point Emmet Comment
  UC2062639  Baccharis douglasii Barbara Ertter with Jim Dunne, David Gowen, Lech Naumovich 2009-12-3 19796 Contra Costa Mudflats at upper (south) end of San Pablo Dam Reservoir northwest of Orinda. Comment
  UC697205  Baccharis glutinosa Mary L. Bowerman 1938-9-17 3719 Contra Costa Willow Spring Comment
  UC691906  Baccharis pilularis Mary L. Bowerman 1930-9-27 470 Contra Costa west road 2 miles from entrance North Road; Mount Diablo Comment
  UCD159504  Baccharis pilularis D. S. Park 2010-9-11 252 Contra Costa Waterfront Rd. Growing along roadside. Disturbed. 5 Comment
  OBI37081  Baccharis pilularis Calvin Craig 1983-11-5 20 Contra Costa Colelcted on North east side of Mt. Diablo Comment
  UC691861  Baccharis salicifolia subsp. salicifolia Mary L. Bowerman 1931-5-2 798 Contra Costa Donner Canyon stream Mount Diablo 152 Comment
  SEINET7881864 Image available Baeria fremontii Herbert L. Mason 1952-1 14260 Contra Costa 3.5 miles south of Byron Comment
  JEPS32259  Balsamorhiza deltoidea R. F. Hoover 1939-4-13 4015 Contra Costa head of Markley Canyon (w branch) Markley Canyon Comment
  CDA21555  Bassia hyssopifolia D. G. Kelch, Michael Park 2008-9-1 8 .293 Contra Costa Carquinez Strait; 200 m W of Pacheco Slough, E of Martinez. Comment
  UC1618272  Bassia hyssopifolia Barbara Ertter, B. Olson, D. Lake, L. Hosley and A. Youngson 1991-10-20 10885 Contra Costa just w Antioch marina (Dow Wetlands Preserve); Dow Wetlands Preserve Comment
  RSA666351  Bassia hyssopifolia Barbara Ertter, Brad Olson, Lynne Hosley, A. Youngson 1991-10-20 10885 Contra Costa Dow Wetlands Preserve, just W of Antioch marina. Comment
  CDA28899  Bellardia trixago D. G. Kelch, Troy MacGregor 2009-5-24 9 .3 Contra Costa Carquinez Strait; Carquinez Loop Trail S of Ozol, S-SW of Martinez, nr Wolcott Ln . Comment
  CDA39043  Bellardia trixago D. G. Kelch 2011-6-5 11 .571 Contra Costa Carquinez Strait; South of Crockett, south of Cummings Skyway. Comment
  UCD146713  Bellardia trixago G. F. Hrusa; D. Crowe 1998-5-8 14386 Contra Costa Sacramento-San Joaquin River Delta. East end of Dow Chemical property at Pittsburg. 15 Comment
  UCD122097  Bellardia trixago Roman Gankin 1962-5-18 s.n. Contra Costa Near abandoned railroad bed on east side of Pinehurst Road, ca. 1/4 mile north of junction of this road with Canyon Road, ca. 2 miles west of Moraga. Comment
  UC2027719  Berberis aquifolium var. dictyota Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15515 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  UC692319  Berula erecta Mary L. Bowerman 1930-10-4 479 Contra Costa Mount Diablo, Maple Spring, by North Road Maple Spring; Mount Diablo, Maple Spring Comment
  JEPS111807  Beta vulgaris D. G. Kelch 2003-8-13 03 .97 Contra Costa Martinez Marsh 1 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
  UC894031  Bidens laevis Lewis S. Rose 1938-10-28 38311 Contra Costa Byron 3 Comment
  CAS-BOT-BC102033  Bidens laevis Walter Knight; Irja Knight 1965-10-15 2036 Contra Costa Frank's Resort. End of Gateway Road. Bethel Tract. Comment
  NY31015  Blennosperma californicum L. S. Rose 1933-3-10 33008 Contra Costa Marsh Creek Comment
  JEPS68966  Blennosperma nanum Edward Lee 1935-3-10 1299 Contra Costa Nortonville South watershed of Kirker Creek Comment
  CAS-BOT-BC492906  Blennosperma nanum Lewis S. Rose 1932-3-15 3279 Contra Costa Byron Comment
  RSA44377  Blennosperma nanum L. S. Rose 1949-3-24 49011 Contra Costa 4 mi S of Byron low wet valley. 8 Comment
  RSA517739  Blennosperma nanum Donald G. Nelson 1937-3-30 459 Contra Costa Marsh Creek Highway, about halfway between Clayton and Bryon. Comment
  JEPS33983  Blennosperma nanum var. nanum R. F. Hoover 1938-2-21 2750 Contra Costa Byron Hot Springs Comment
  UC34577  Blennosperma nanum var. nanum H. M. Hall 1902-3-22 1695 Contra Costa Martinez San Francisco Bay Region Comment
  UC588147  Blennosperma nanum var. nanum Annetta Carter 1937-3-28 1225 Contra Costa 15 mi e, along Marsh Creek Rd Concord 152 Comment
  UC894085  Blennosperma nanum var. nanum Lewis S. Rose 1941-3-13 41035 Contra Costa 3 mi s of, Byron 7 Comment
  UC2070516  Blennosperma nanum var. nanum Barbara Ertter with Steve Matson 2003-3-15 18108 Contra Costa Black Diamond Mines Regional Preserve, Black Diamond Trail in SW corner of park. Comment
  POM351055  Blepharizonia laxa T. S. Brandegee 1887-09 s.n. Contra Costa Antioch. Comment
Read comments Dec 16 2012
  UC1119055  Blepharizonia laxa G. T. Nordstrom 1937-10-28 1403 Contra Costa 1.6 mi nne of Somersville (Mt. Diablo); Mt. Diable 182 Comment
Read comments Aug 6 2012
  UCD129617  Blepharizonia laxa Robert E. Preston 1996-9-27 1012 Contra Costa NW-facing hillside, 0.5 mile south of Contra Loma Reservoir. 106 Comment
  UC596244  Blepharizonia plumosa R. F. Hoover 1937-8-31 2704 Contra Costa Pittsburg Comment
  CAS-BOT-BC100322  Blepharizonia plumosa Eva Buxton 1994-8-10 1099 Contra Costa Cowell Ranch, ca. 0.5 mi. E and 1 mi. S of Marsh Creek Reservoir Comment
  JEPS48643  Boechera breweri Elsa Kraeger 1926-3-7 Contra Costa e of Mt. Diablo summit; Mt. Diablo Comment
  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
  POM32378  Boisduvalia glabella Katherine Brandegee 1905-6-16 s.n. Contra Costa Antioch Comment
  RSA41191  Boisduvalia glabella Robert F. Hoover 1937-5-19 2119 Contra Costa Byron Hot Springs Comment
  POM194201  Boisduvalia glabella J. T. Howell 1929-7-20 4331 Contra Costa Pittsburg 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
  UC1950424  Bolboschoenus maritimus subsp. paludosus Barbara Ertter 1990-9-10 9640 Contra Costa Briones Regional Park, Briones Hills S of Martinez, at margin of main Sindicich Lagoon Comment
  CAS-BOT-BC31392  Bolboschoenus robustus John Thomas Howell 1932-10-8 10794 Contra Costa Tidal Flat at mouth of Rodeo Creek. Comment
  CAS-BOT-BC95329  Bowlesia incana Mary L. Bowerman 1935-6-1 3098 Contra Costa Pine-Mitchell divide, Mount Diablo 975 Comment
  UC566857  Bowlesia incana H. L. Mason 1928-4-29 4419 Contra Costa Mount Diablo, Sycamore Canyon Sycamore Canyon; Mount Diablo, Sycamore Canyon Comment
  CDA10288  Brachypodium distachyon D. G. Kelch 2007-6-3 7 .433 Contra Costa East Bay; Along gated portion of Hampton Rd N of San Pablo Reservoir. Comment
  CAS-BOT-BC36726  Brassica rapa Ira L. Wiggins 1930-4-18 4609 Contra Costa Jersey Island. Comment
  UC34624  Brickellia californica V. King Chesnut 1887-9-11 Contra Costa Mt. Diablo Comment
  UC691792  Brickellia californica Mary L. Bowerman 1931-9-27 1051 Contra Costa road to Quicksilver Mind (Mount Diablo); Mount Diablo Comment
  CDA31567  Briza minor D. G. Kelch, Andrew G. Murdock 2004-4-24 4 .104 Contra Costa Carquinez Strait; Canada del Cierbo, along Cumming Skyway at Highway 80 ~ .75 km. 0 Comment
  UC407032  Brodiaea terrestris subsp. terrestris Ira L. Wiggins 1930-4-17 4573 Contra Costa near Byron Comment
  UCD38557  Bromus berteroanus Beecher Crampton 1956-5-14 3415 Contra Costa 0.5 mile northwest of Martinez. Comment
  CDA23631  Bromus carinatus D. G. Kelch, D. A. Weinstein 2008-4-25 8 .089 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
  UCD57881  Bromus carinatus Beecher Crampton 1956-5-14 3393 Contra Costa Just east of old Nortonville. 7 miles southwest of Antioch. Comment
  UCD58227  Bromus carinatus P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UC692337  Bromus carinatus var. carinatus Mary L. Bowerman 1935-5-22 3038 Contra Costa w of Twin Peaks (Mount Diablo, Eagle Point Ridge); Mount Diablo, Eagle Point Ridge 304 Comment
  UC2028410  Bromus carinatus var. carinatus Barbara Ertter 1998-4-4 15969 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, Fossil Hill, middlle of NE-facing slope Comment
  POM301029  Bromus diandrus Mary L. Bowerman 1935-5-1 2942 Contra Costa Mount Diablo. West road 4.4 miles from entrance. 396 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
  UCSB12519  Bromus diandrus Grah, Nancy 1962-4-14 Contra Costa 0.6 mi N of Miner Rd on Sleepy Hollow Lane; Orinda 182 Comment
  CAS-BOT-BC156067  Bromus diandrus Mary L. Bowerman 1935-5-25 3068 Contra Costa Mount Diablo. South of the summit. 1066 Comment
  UC697135  Bromus hordeaceus Mary L. Bowerman 1931-5-13 839 a Contra Costa Mount Diablo, Pine Canyon, 1 mi above spring Pine Canyon; Mount Diablo, Pine Canyon Comment
  UCD38558  Bromus hordeaceus Beecher Crampton 1956-5-14 3417 Contra Costa 0.5 mile northwest of Martinez. Comment
  UCD58637  Bromus hordeaceus Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  UCD58642  Bromus hordeaceus Beecher Crampton 1956-5-14 3379 Contra Costa Head of Horse Valley. 5 miles south of Antioch. Comment
  UCD58767  Bromus hordeaceus L. S. Smith 1914-5-9 s.n. Contra Costa Mt. Diablo. West slope. Comment
  CAS-BOT-BC155471  Bromus hordeaceus Mary L. Bowerman 1933-4-15 1870 Contra Costa Mount Diablo. Canyon south of Arroyo del Cerro. Rocky knoll 250 feet below spring. Comment
  CAS-BOT-BC162452  Bromus laevipes Mary L. Bowerman 1935-5-30 3095 Contra Costa Mount Diablo. Between the two ridges which converge at Twin Peaks (Eagle Point ridge). 350 Comment
  CAS-BOT-BC162356  Bromus madritensis Mary L. Bowerman 1935-5-22 3037 Contra Costa Mount Diablo. Eagle Point Ridge, canyon at north end which heads into saddle west of Twin Peaks. 304 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
  SEINET5607271 Image available Bromus rigidus Rachel Van Noord 1998-1 6 Contra Costa Dinosaur Hill Park, Pleasant Hill Comment
  UCD59573  Bromus rubens P. B. Kennedy 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  UCD59614  Bromus rubens Beecher Crampton 1956-5-14 3410 Contra Costa Southern boundary of Mt. Diablo State Park. Comment
  CAS-BOT-BC161950  Bromus rubens R. E. Frenkel 1964-3-26 406 Contra Costa On north side of Highland Road, 0.25 mile east of Tassajara Road junction. 195 Comment
  CDA8350  Bromus sterilis D. G. Kelch, A. G. Murdock 2005-5-13 05 .268-B Contra Costa Carquinez Strait; Martinez-West: Ozol Rock and Scenic Drive. Ozol rock in road cuts. 0 Comment
  UC692311  Calandrinia breweri Mary L. Bowerman 1933-5-3 1971 Contra Costa due s Meridian Peak summit; Mount Diablo 731 Comment
  UC1136642  Calandrinia ciliata R. C. Wilson 108 Contra Costa 1/2 mi sw Nortonville; Mt. Diablo Quadrangle Comment
  UC692306  Calandrinia ciliata Mary L. Bowerman 1931-2-22 522 Contra Costa Sycamore Ridge Mount Diablo Comment
  RSA721205  Callitriche heterophylla var. bolanderi Barbara Ertter, Mary L. Bowerman 1995-5-7 14034 Contra Costa Three-Springs Trail on NE side of Mt. diablo SE of Clayton; pond W side of road in grassy flat. Comment
  JEPS22442  Callitriche marginata Frank Shultz 1958-3-15 Contra Costa 3 miles south of Byron. 15 Comment
  UC2027722  Callitriche marginata Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15512 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  NY409592  Callitriche marginata B. J. Ertter 1989-4-5 8144 Contra Costa Alkali sink W and adjacent to Clifton Court Forebay, ca. 15 air miles SW of Stockton, near sea level Comment
  JEPS102906  Calochortus albus Barbara Ertter with John Ginochio 2002-6-1 17938 Contra Costa Arroyo del Cerro on NW side of mountain, above connector road between Government Road and Olofson Homestead Mount Diablo Comment
  UC3366  Calochortus albus W. H. Brewer 1862-5-24 1157 Contra Costa se of Monte Diablo Comment
  UC1481552  Calochortus albus Neil Havlik 1980-5-1 910 Contra Costa 0.5 mi nw Eugene O'Neill Home; San Ramon Comment
  UC2028323  Calochortus argillosus Barbara Ertter, Susan D'Alcamo 1998-6-12 16153 Contra Costa North Gate Road on west flank of Mount Diablo, between Long Ridge and Buckle Point. Comment
  UC2028974  Calochortus argillosus Barbara Ertter with Brad Olson et al. 2000-6-2 17296 Contra Costa north side Brushy Peak Regional Preserve NE of Livermore. Comment
  UCD164657  Calochortus luteus Henry House 1995-5-16 1995- 24 Contra Costa Adjacent to Highway 113, about 0.2 km south of Creek Road. 6 Comment
  UC2028365  Calochortus luteus Barbara Ertter 1998-6-20 16259 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, NE base of Haystack Hill Comment
  CAS-BOT-BC132492  Calochortus pulchellus Volney Rattan 1880-1-1 s.n. Contra Costa Martinez Comment
  CAS-BOT-BC132496  Calochortus pulchellus Alice Eastwood 1914-5-30 4442 Contra Costa Mt. Diablo Comment
  LA22451  Calochortus pulchellus Carl Purdy; 1899-5-15 sn Contra Costa Mt. Diablo Comment
  POM153228A  Calochortus pulchellus C. L. Hitchcock 1928-6-5 14 Contra Costa Between Port Costa and Martinez. 18 Comment
Read comments Feb 14 2017
  UCD139551  Calochortus pulchellus H. A. Stout; T. C. Wainwright 1980-4-13 3 Contra Costa Mallory Ranch, around 1/2 mile east of Morgan Territory road. 609 Comment
  JEPS62804  Calochortus umbellatus William T. Hirano 1969-4-3 Contra Costa Wildcat Canyon Road Comment
  UC691990  Calochortus umbellatus Mary L. Bowerman 1931-4-18 727 Contra Costa at head of ne fork Sycamore Canyon; Mount Diablo Comment
  CDA9096  Calochortus venustus D. G. Kelch 2007-6-3 7 .431 Contra Costa East Bay; Along gated portion of Hampton Rd N of San Pablo Reservoir. 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
  RSA68630  Calochortus venustus Frank W. Peirson 1923-7-1 3682 Contra Costa Mt. Diablo. Comment
  UCD95579  Caltha palustris E. Dean; with Thomas Starbuck 1993-5-1 359 Contra Costa Oakland hills, canyon E of Skyline Blvd., growing in stream that separates Huckleberry Preserve from Sibley Volcano Park, along Skyline Trail, near old homestead site. Comment
  CAS-BOT-BC418628  Calystegia R. K. Brummitt; B. Ertter 2012-6-17 22061 Contra Costa Berkeley Hills, Tilden Park, Seaview Trail north of Vollmer Peak Comment
  CAS-BOT-BC224751  Calystegia malacophylla subsp. pedicellata John Thomas Howell 1942-5-24 16964 Contra Costa Near Deer Flat, Mt. Diablo Comment
  UC2028302  Calystegia malacophylla subsp. pedicellata Barbara Ertter, Susan D'Alcamo 1998-6-12 16189 Contra Costa North Peak Trail south of Prospectors Gap on east side of Mount Diablo summit. Comment
  JEPS78819  Calystegia purpurata Edward Lee 1936-5-24 2160 Contra Costa about 2 mi se Curry Canyon (Marsh Creek, Morgan Territory); Morgan Territory, se of Curry Canyon, Marsh Creek Comment
  UCD150753  Calystegia sepium James A. Neilson Jr. 1972-11-2 3612 Contra Costa 2 miles NW of Concord, at intersection of Hwy 4 and Walnut Creek. 7 Comment
  JEPS111815  Calystegia sepium subsp. binghamiae D. G. Kelch 2003-8-13 03 .117 Contra Costa Martinez Marsh 1 Comment
  CDA15288  Calystegia sepium subsp. limnophila G. F. Hrusa, D. Crowe, R. York 1998-7-17 14728 Contra Costa Sacramento Delta; Betw. Dow Ecological Reserve and San Joaquin R. Sheet 1 of 2. 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
  UC2031409  Calystegia subacaulis Barbara Ertter 2002-5-16 17856 Contra Costa Richmond Field Station (UC Berkeley), relict coastal grassland at end of Lark Lane 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
  RSA135377  Camissonia contorta Volney Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley. Comment
  UC2028261  Camissonia hirtella Barbara Ertter 1999-6-12 16719 Contra Costa Knobcone Point Road on south side of Mount Diablo, burned chamissal at head of NE fork of Sycamore Creek. Comment
  UC635407  Camissoniopsis intermedia H. L. Mason 1929-3-15 5048 Contra Costa Nortonville Comment
  UC692452  Camissoniopsis intermedia Mary L. Bowerman 1933-5-25 2182 Contra Costa steep s-facing slope at w end of s face of ridge Mount Diablo, Oyster Ridge 411 Comment
  UC635408  Camissoniopsis micrantha H. L. Mason 1932-3-20 6850 Contra Costa sand hills near Antioch Comment
  UC1051115  Campanula bononiensis N. Floy Bracelin 1943-9-5 2498 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC691593  Campanula exigua Mary L. Bowerman 1930-6-10 309 Contra Costa Meridian Peak Summit Mount Diablo 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
  UC1051244  Campanula rotundifolia N. Floy Bracelin 1943-7-11 2546 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
  CHSC21613  Capsella bursa-pastoris Willis Ball 1975-2-23 438 Contra Costa Contra Loma Regional Park. In area #1. Ca. 10 yds e of restroom facility on n side of lake. 30 Comment
  CAS-BOT-BC37393  Cardamine californica John Thomas Howell 1931-3-10 5757 Contra Costa East side of Mount Diablo 7 miles from Clayton on Livermore road. Comment
  LA204290  Cardamine californica Carl B. Wolf; 1937-3-28 8319 Contra Costa 2 mi. S of Pinole on San Pablo Road 30 Comment
  UC2028278  Cardamine californica Barbara Ertter 1999-3-21 16490 Contra Costa NW corner of Miller Knox Regional Shoreline, Potrero Hills SW of Richmond; abandoned trail on north side of crest. Comment
  UCSB2297  Cardamine californica Kamb, Peter; Chisaki, Francia 1950-3-18 Contra Costa Saddle between North and South Peaks of Mt. Diablo 883 Comment
  UC1795656  Cardamine californica var. californica Barbara Ertter, Gary Schoolcraft 1996-4-7 14580 Contra Costa Molate Beach Park on San Francisco Bay north of San Rafael Bridge; coastal prairie and brushland on bluff. Comment
  UC10419  Cardamine californica var. integrifolia W. H. Brewer 1862-5-1 1039 Contra Costa Walnut Creek Comment
  UC2070647  Cardamine flexuosa Barbara Ertter with David Gowen 2006-4-14 18668 Contra Costa Lime Ridge Open Space (City of Concord) at NW foot of Mount Diablo, SE of Ygnacio Valley Road. Comment
  RSA721865  Cardamine hirsuta Barbara Ertter, Gary Schoolcraft 1996-4-7 14576 Contra Costa Molate Beach Park on San Francisco Bay N of San Rafael Bridge; S end of parking area. Comment
  RSA0033843  Cardamine oligosperma Barbara Ertter 2000-3-30 16912 Contra Costa North side of Mount Diablo, Deer Flat at head of Mitchell Canyon. Comment
  UC691070  Cardamine oligosperma Mary L. Bowerman 1931-3-29 618 Contra Costa East Cave Point Ridge , East Cave Point Ridge (Mount Diablo) Comment
  JEPS111068  Cardamine oligosperma Lee Echols 2003-3-7 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
  CDA33553  Cardaria chalepensis Guise/McClure 2010-5-24 PDR# 1645228 Contra Costa Pleasanton; Old School Road. 0 Comment
  CDA19118  Cardaria chalepensis R. M. Case 2001-5-1 PDR P 088777 Contra Costa Solano Ave., Concord. 0 Comment
  CAS-BOT-BC281735  Carduus pycnocephalus Joseph P. Tracy 1934-4-30 13188 Contra Costa Roadside between Moraga and Lafayette 152 Comment
  POM301032  Carduus pycnocephalus Mary L. Bowerman 1935-5-25 3079 Contra Costa North Road 2.4 miles from entrance (by sheperd's camp) 305 Comment
  UC582525  Carduus pycnocephalus subsp. pycnocephalus Joseph P. Tracy 1934-4-30 13188 Contra Costa roadside between Moraga and Lafayette Moraga 152 Comment
  JEPS79443  Carduus tenuiflorus Edward Lee with Annetta Carter 1935-6-13 1431 Contra Costa s Richmond Panhandle Boulevard; Richmond Comment
  JEPS97625  Carduus tenuiflorus Annetta M. Carter, Florence Dickson 1939-5-28 1437 Contra Costa El Cerrito. 7 Comment
  CAS-BOT-BC281804  Carduus tenuiflorus David Keck 1941-6-5 5312 Contra Costa Berkeley Hills, Fish Creek Rd, 0.25 mile W of E portal of Broadway Tunnel 335 Comment
  UCD129927  Carduus tenuiflorus Collector Unknown Date Unknown 64 Contra Costa about 6 miles east of Pinole on Franklin Canyon Road. 152 Comment
  CAS-BOT-BC17998  Carex aquatilis var. dives Brian Atwater 1979-5-6 BA- 198 Contra Costa Between Bethel Island and Holland Tract. Comment
  CAS-BOT-BC19206  Carex barbarae Walter Knight; Irja Knight 1977-6-18 s.n. Contra Costa About 50 ft. from shore of San Joaquin River. Antioch sand dunes, Little Corral site. Comment
  JEPS25138  Carex barbarae G. Thomas Robbins 1959-5-16 4008 Contra Costa Caly [clay] banks and rivulet just north of Point Orient, Potrero Hills, overlooking San Francisco Bay, Richmond Comment
  UC2013067  Carex barbarae Barbara Ertter with Lisa Schultheis 1996-9-2 15279 Contra Costa South side Mount Diablo, Sycamore Creek below Sulfur Spring. Comment
  POM300640  Carex dudleyi Mary L. Bowerman 1935-5-16 3001 Contra Costa Mt. Diablo: Russelman Park road at Gregory Ranch junction. 290 Comment
  CAS-BOT-BC20852  Carex globosa John Thomas Howell 1953-3-15 28923 Contra Costa Rock City, Mt. Diablo. Comment
  UC2028594  Carex globosa Barbara Ertter with Alan Whittemore, Joanne Kerbavaz, et al. 2001-5-22 17647 Contra Costa South side Mount Diablo, flat at confluence of West (Madrone) and East forks of Sycamore Creek. Comment
  JEPS99504  Carex nudata Mary L. Bowerman Apr 1977 Contra Costa Mount Diablo, Sycamore Creek Canyon. 243 Comment
  JEPS111901  Carex praegracilis D. G. Kelch 2005-3-24 05 .64 Contra Costa Point Pinole Southern Pt. Pinole 3 Comment
  SEINET3451402  Carex praegracilis Dean G. Kelch, Andrew G. Murdock 2005-3-24 DGK 5 .064 Contra Costa Corquinez Strait Region, Corquinez Strait Region, Southern Point Pinole 3 Comment
  SEINET11263976  Carex praegracilis Barbara Ertter, Dan Norris 2000-12-3 17553 Contra Costa South side of Mount Diablo, Devils Slide Trail above Sulfur Springs on nw fork of Sycamore Creek.; 0 427 Comment
  JEPS105723  Carex serratodens David Gowen 2004-9-13 159 Contra Costa Mt. Diablo State Park. Maple Spring, which is on the North Gate Rd., approx. 1920' elev. 585 Comment
  UC2029197  Carex serratodens Barbara Ertter with Michelle Lee et al. 2002-6-29 17964 Contra Costa Lower Curry Creek on east side of Mount Diablo, private property just above Morgan Territory Comment
  SEINET7575209 Image available Carex serratodens Lewis S. Rose 1935-5-16 35163 Contra Costa Mt. Diablo. Comment
  UC2032812  Carex tumulicola Doran, Andrew Scott 2012-3-20 682 Contra Costa North end of Brooks Island along ridge, cleared area northwest of caretakers residence. Comment
  UC2029203  Carex tumulicola Barbara Ertter 1999-7-17 16770 Contra Costa Tilden Regional Park, trail to Jewel Lake paralleling Wildcat Creek Comment
  HSC87801  Castilleja affinis Jennifer Roth 1979-4-29 35 Contra Costa Clayton, Russleman Park Rd. off March Creek Rd. Concord Mt. Diablo Trail Ride Association grounds. 335 Comment
  UCD122150  Castilleja affinis August Hartman 1960-4-19 7 Contra Costa Along North Gate Road on Mt. Diablo. 609 Comment
  JEPS19387  Castilleja affinis subsp. affinis G. Thomas Robbins 1937-4-17 119 Contra Costa near Point Richmond Comment
  UC64217  Castilleja affinis subsp. affinis H. M. Hall 1900-3-23 Contra Costa San Pablo Creek; San Francisco Bay Region Comment
  UC691558  Castilleja affinis subsp. affinis Mary L. Bowerman 1931-3-28 559 Contra Costa above Mitchell Rock (Mount Diablo); Mount Diablo Comment
  UC2027927  Castilleja affinis subsp. affinis Barbara Ertter with Linda Vorobik 2001-3-24 17570 Contra Costa Lime Ridge Open Space east of Walnut Creek, eastern edge overlooking Crystal Springs subdivision. Comment
  UC2029088  Castilleja applegatei subsp. martinii Barbara Ertter 2000-7-29 17446 Contra Costa Donner Basin on north side of Mount Diablo, Falls Trail south of Wild Oat Canyon. Comment
  CHSC116632  Castilleja attenuata Lowell Ahart; Josephine Guardino 2016-4-19 20778 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the sides of the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  CHSC22515  Castilleja exserta Robert A. Schlising 1962-3-24 2106 Contra Costa Coast Ranges. Along Marsh Creek Road, about 4 mi w of Byron. Comment
  UC2045291 Image available Castilleja parviflora var. douglasii Mary L. Bowerman 1930-6-5 243 Contra Costa West road, 5.8 miles from entrance Comment
  UC691575  Castilleja rubicundula subsp. lithospermoides Mary L. Bowerman 1931-5-2 787 Contra Costa foot of Eagle Point ridge; Mount Diablo Comment
  UC691618  Castilleja rubicundula subsp. lithospermoides Mary L. Bowerman 1935-5-22 3035 Contra Costa n end Eagle Point ridge; Mount Diablo 289 Comment
  SEINET3839756  Castilleja rubicundula subsp. lithospermoides Unknown 1996-4-26 Contra Costa Franklin Canyon Road near the junction with McEwan Road in grassland Comment
  UC64223  Castilleja subinclusa subsp. franciscana H. M. Hall 1901-3-17 Contra Costa Point Richmond; San Francisco Bay Region Comment
  CAS-BOT-BC41038  Caulanthus flavescens Mary L. Bowerman 1933-4-15 1863 Contra Costa Mount Diablo. Second Ridge south of Arroyo del Cerro. 396 Comment
  CAS-BOT-BC40510  Caulanthus lasiophyllus Mary L. Bowerman 1933-4-26 1924 Contra Costa Mount Diablo. North Peak ridge east-southeast of the peak, south face. 609 Comment
  CAS-BOT-BC40511  Caulanthus lasiophyllus Mary L. Bowerman 1932-3-23 1131 Contra Costa Mount Diablo. Ridge east of Donner Canyon. On crest. 274 Comment
  CAS-BOT-BC48832  Ceanothus cuneatus John Thomas Howell 1926-3-7 1664 Contra Costa Mt. Diablo on old wagon road Comment
  CAS-BOT-BC48834  Ceanothus cuneatus H. E. McMinn 1923-3-6 887 Contra Costa Mt. Diablo Comment
  JEPS48720  Ceanothus cuneatus var. cuneatus W. L. Jepson 1945-3-11 27553 Contra Costa Moraga Ridge Comment
  UC1070932  Ceanothus cuneatus var. cuneatus R. W. Lundh 1933-3-29 222 Contra Costa 1 mi w Alamo; Concord quad Comment
  UCD124005  Ceanothus cuneatus var. cuneatus D. O. Burge 2007-5-9 916 e Contra Costa Mount Diablo State Park, roadside on South Gate Road, 1.5 road miles (2.4 km) north of entrance gate, 6.38 km 67 deg. (True) ENE of Danville. 380 Comment
  JEPS42198  Ceanothus oliganthus var. sorediatus W. L. Jepson 1916-7-16 6814 Contra Costa Oakland hills Comment
  UC18334  Ceanothus oliganthus var. sorediatus State Survey 1862-5-17 1005 Contra Costa Mt. Diablo Comment
  CDA43453  Cenchrus longispinus Sinz & Brumfield 2015-9-18 PDR# 070 P06223639 Contra Costa Oakley; 514 Christy Street. 0 Comment
  UC1051344  Centaurea cineraria N. Floy Bracelin 1941-6-8 1384 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1479603  Centaurea solstitialis Gloria Merrill 1980-5-30 Contra Costa ca. 2 mi w of junction with Marsh Creek Road El Camino (along Marsh Creek Road) Comment
  UCD121507  Centaurium tenuiflorum Ann F. Johnson 1978-6-22 s.n. Contra Costa Edge of the San Joaquin River at the Antioch Dunes on Pacific Gas and Electric Co. property, 4 miles east of the town of Antioch. Comment
  JEPS88689  Centromadia fitchii John Thomas Howell 30904 Contra Costa near Turtle Rock; Mt. Diablo 259 Comment
  UC691498  Centromadia fitchii Mary L. Bowerman 1935-9-13 3340 Contra Costa margin Hidden Pond Mount Diablo, Hidden Pond Comment
  UC702537  Centromadia fitchii L. S. Rose 1941-10-13 41464 Contra Costa 1 mi e Walnut Creek 50 Comment
  CAS-BOT-BC288550  Centromadia fitchii Wm. F. Herrin 1922-7-4 s.n. Contra Costa Byron Springs Comment
  UC2029135  Centromadia fitchii Barbara Ertter 2004-9-17 18497 Contra Costa Lime Ridge Open Space in Concord, segment southeast of Treat Boulevard, south of Kingwood Drive. Comment
  UCD130133  Centromadia parryi subsp. congdonii Robert E. Preston 1998-10-25 1198 Contra Costa Danville, at junction of Sycamore Valley Road and Camino Tassajara. 129 Comment
  CAS-BOT-BC288877  Centromadia parryi subsp. congdonii David D. Keck 1933-11-2 2610 Contra Costa San Ramon, Cow Creek Canyon Rd, 0.5 mile from turnoff Comment
  CAS-BOT-BC288879  Centromadia parryi subsp. congdonii David D. Keck 1933-11-2 2610 Contra Costa San Ramon, Cow Creek Canyon Rd, 0.5 mile from turnoff Comment
  CAS-BOT-BC288880  Centromadia parryi subsp. congdonii David D. Keck 1933-11-2 2611 Contra Costa 2.7 miles N of Walnut Creek Comment
  UCD19693  Centromadia pungens Donald W. Kyhos 1963-4-11 s.n. Contra Costa 3.6 miles south of Byron Hwy and Byron Hot Springs Rd. Comment
  JEPS65191  Centromadia pungens subsp. pungens L. R. Heckard 1971-4-15 2476 Contra Costa 3 mi s Byron (at Holey Road) Comment
  UC1819017  Centromadia pungens subsp. pungens Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14679 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay; packed ground around Tank 14 in center of hillside. Comment
  UC70203  Centromadia pungens subsp. pungens J. Burtt Davy 1898-5-1 Contra Costa Livermore Pass Region of Mount Diablo Comment
  JEPS51352  Cerastium glomeratum W. L. Jepson 1922-4-16 9600 Contra Costa San Pablo Comment
  UC1948960  Cerastium glomeratum William J. Ferlatte, L. Maynard Moe 1970-4-27 1233 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC579851  Cerastium glomeratum Annetta Carter 1936-4-19 1114 Contra Costa 1 mi. s.w Castro Point (e. side Red Rock); San Francisco Bay, Red Rock Comment
  CDA19002  Ceratophyllum demersum R. Gage 2000-10-18 PDR 1198719 B Contra Costa Clifton Ct. Forebay, NW of Tracy, at the head of State Water project. 0 Comment
  RSA666357  Ceratophyllum demersum Barbara Ertter, Lynne Hosley 1991-9-22 10823 Contra Costa Lafayette Reservoir in hills SW of Lafayette 137 Comment
  CAS-BOT-BC137010  Cercocarpus betuloides var. betuloides Mary L. Bowerman 1930-6-14 325 Contra Costa Mount Diablo. Summit area Comment
  UC691101  Cercocarpus betuloides var. betuloides Mary L. Bowerman 1931-4-25 Contra Costa summit of Meridian Peak (Mount Diablo); , Meridian Peak Comment
  UC34798  Chaenactis glabriuscula var. glabriuscula W. C. Blasdale 1893-5-13 Contra Costa Antioch Comment
  UC565564  Chaenactis glabriuscula var. glabriuscula H. L. Mason 1929-3-31 5157 Contra Costa Antioch, sand dikes along San Joaquin River San Joaquin River, Antioch Comment
  CAS-BOT-BC284220  Chaenactis glabriuscula var. megacephala Volney Rattan 1879-1-1 s.n. Contra Costa Antioch Comment
  RSA181414  Chaenactis glabriuscula var. megacephala James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  UCSB23747  Chamaesyce maculata Olson, Glen 1968-7-15 Contra Costa North side of Saint Mary's Road, 0.4 mile east of its junction with Moraga Rd. 91 Comment
  UC1606334  Chamaesyce serpyllifolia Barbara Ertter, Brad Olson 1991-9-28 10830 Contra Costa betw Orinda and El Sobrante San Pablo Reservoir (s end of reservoir) 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
  UC42444  Cheilanthes covillei Wm. H. Brewer 1862-5-14 1085 Contra Costa summit of Mt Diablo Comment
  UCD102374  Cheilanthes covillei Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Burma Road at Mount Diablo. 400 Comment
  CAS-BOT-BC66367  Cheilanthes covillei Mary L. Bowerman 1931-5-7 801 Contra Costa North Peak ridge Comment
  JEPS79597  Cheilanthes intertexta Edward Lee 1978-12-20 Contra Costa Mt. Diablo Comment
  UC2027830  Chenopodium californicum Barbara Ertter with Tony Morosco and other CNPS members 2001-5-6 17622 Contra Costa Northwest flank of Mount Diablo, south end of Black Point Trail on tributary of White Canyon. Comment
  UCR13095  Chlorogalum pomeridianum Robin Maetche, Geoffrey Matthews 1971-7-4 s.n. Contra Costa 1 mi below North [Gate Road] entrance to Mt. Diablo State Park, Concord 427 Comment
  CDA39315  Chlorogalum pomeridianum var. pomeridianum D. G. Kelch 2005-6-24 5 .387 Contra Costa Carquinez Strait Region; 5th Street Prairie, Crockett. Comment
  UC1004357  Chlorogalum pomeridianum var. pomeridianum M. S. Cave 1949-6-26 4901 Contra Costa Arlington Avenue n Mira Vista entrance (hillside); Kensington Comment
  UCD99655  Chorizanthe biloba var. biloba M. Wiesendanger 1925-5-1 1479 Contra Costa San Miguel. Comment
  CAS-BOT-BC252678  Chorizanthe membranacea Alice Eastwood 1915-5-30 s.n. Contra Costa Mt. Diablo Comment
  SBBG54463  Chorizanthe membranacea L. R. Abrams 1921-5-25 Contra Costa Mt Diablo Comment
  UC77552  Chorizanthe membranacea Brandegee April, 1889 Contra Costa Mount Diablo Comment
  UC849193  Chorizanthe membranacea Lewis S. Rose 1941-5-15 41230 Contra Costa w slope Mount Diablo; w slope Mount Diablo 396 Comment
  UC85937  Chorizanthe uniaristata Mrs. K. Brandegee Contra Costa Mount Diablo Comment
  CAS-BOT-BC30109  Chrysolepis chrysophylla var. minor John Thomas Howell 1925-9-19 1442 Contra Costa Moraga Ridge, Oakland Hills Comment
  OBI3376  Chrysolepis chrysophylla var. minor Neil Havlik 1969-7-18 501 Contra Costa Moraga Ridge, east of Oakland 335 Comment
  UCD110095  Chrysolepis chrysophylla var. minor Beecher Crampton 1957-11-20 4652 Contra Costa Alameda County line. Between Round and Redwood Regional Parks, Berkeley Hills. Comment
  UCD110102  Chrysolepis chrysophylla var. minor J. M. Tucker 1941-9-26 408 Contra Costa Summit of Moraga Ridge. Comment
  CAS-BOT-BC277975  Cirsium cymosum John Thomas Howell 1942-7-19 17039 Contra Costa Near Rock City, Mt. Diablo Comment
  UC691389  Cirsium cymosum var. cymosum Mary L. Bowerman 1933-6-20 2323 Contra Costa Median Ridge Donner Canyon Comment
  UC691381  Cirsium occidentale var. californicum Mary L. Bowerman 1935-5-16 3015 Contra Costa e side of North Peak (behind Gabriel-Hinks'); Mount Diablo, North Peak 289 Comment
  POM352184  Cirsium occidentale var. venustum B. C. Templeton 1962-6-10 s.n. Contra Costa Mt Diablo. Comment
  UC691383  Cirsium occidentale var. venustum Mary L. Bowerman 1931-5-23 899 Contra Costa Oyster Point Mount Diablo, Oyster Point Comment
  CAS-BOT-BC162561  Clarkia affinis Volney Rattan 1877-5-22 s.n. Contra Costa Alhambra Val. Comment
  UC1795900  Clarkia affinis Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14639 Contra Costa Little Pine Creek at northwest foot of Mt. Diablo, along trail connecting North Gate Road to Castle Rock Road, Diablo Foothills Regional Park; grassy hillside. Comment
  UCSC000477  Clarkia affinis C. M. Belshaw 1936-5-13 2018 Contra Costa Mt. Diablo, Round Valley 229 Comment
  JEPS43823  Clarkia biloba C. L. Hitchcock 1928-6-5 13 Contra Costa 1 1/2 mi from Port Costa (between Port Costa and Martinez) 40 Comment
  UC107833  Clarkia biloba Katharine Brandegee June 1905 Contra Costa Port Costa Comment
  UC169380  Clarkia biloba Katharine Brandegee June 1905 Contra Costa Port Costa Comment
  UC373494  Clarkia biloba C. L. Hitchcock 1928-6-5 15 Contra Costa 1 mi w Port Costa (between Port Costa and Crockett) 5 Comment
  CAS-BOT-BC163605  Clarkia biloba subsp. biloba A. D. E. Elmer 1903-5-1 4319 Contra Costa Mount Diablo Comment
  RSA0059990  Clarkia biloba subsp. biloba C. L. Hitchcock 1928-6-5 13 Contra Costa Between Point Costa and Martinez, 1.5 mile from Port Costa. 40 Comment
  CAS-BOT-BC164156  Clarkia concinna A. D. E. Elmer 1903-5-1 4336 Contra Costa Mount Diablo Comment
  UC1952185 Image available Clarkia concinna subsp. concinna R. Raiche 1981-3-1 s.n. Contra Costa North America, U.S.A., California, Contra Costa County: Mt. Diablo. N. Slope of N. peak in talus slopes below the ridge line. Under Quercus spp., Juniperus californica, Cercocarpus betuloides & Pelea baldwinii. Comment
  UC692495  Clarkia concinna subsp. concinna Mary L. Bowerman 1931-5-21 879 Contra Costa Mount Diablo, Curry Cave Point Trail Curry Cave Point Trail; Mount Diablo, Curry Cave Point Trail 350 Comment
  CDA38704  Clarkia gracilis subsp. gracilis D. G. Kelch 2007-6-3 7 .43 Contra Costa East Bay; Along gated portion of Hampton Rd N of San Pablo Reservoir. Comment
  UCSC000483  Clarkia modesta Jean M. Nelson 1937-5-8 s.n. Contra Costa Small canyon at the head of Markley Canyon, north of Mount Diablo Markley Canyon, Mount Diablo - Somersville Comment
  JEPS111562  Clarkia purpurea subsp. purpurea A. G. Murdock 2004-5-28 294 Contra Costa Pinole Peak 405 Comment
  JEPS111553  Clarkia purpurea subsp. quadrivulnera Christopher Thayer 1995-5-20 Contra Costa Carquinez Straits Dr. near Ozol entrance gate Comment
  UC634710  Clarkia purpurea subsp. quadrivulnera H. L. Mason 1928-4-26 4379 Contra Costa hills around Berkeley and Oakland Comment
  CDA31846  Clarkia rubicunda D. G. Kelch, Dick Moe, Doug Stone 2001-6-3 1 .024 Contra Costa East Bay.; Brooks Island. Comment
  UC1279946  Clarkia rubicunda Peter H. Raven 1957-7-5 11050 Contra Costa ne side of hills Point Richmond 106 Comment
  UC1377638  Clarkia rubicunda W. J. Dress 1951-7-3 3466 Contra Costa a few mi s Moraga 152 Comment
Read comments Apr 12 2009
  RSA113596  Clarkia rubicunda Peter H. Raven 1957-7-5 11050 Contra Costa Northeast side of the hills at Point Richmond 107 Comment
  CAS-BOT-BC165452  Clarkia unguiculata Alice Eastwood 1922-3-17 11078 Contra Costa Mt. Diablo Comment
  CHSC75102  Clarkia unguiculata Roger Thom 1987-5-18 12 Contra Costa 1.0 mi from intersection with Pleasant Hill Rd. on Reilez Valley Rd. Lafayette (1600 block). Road cut. 182 Comment
  RSA41158  Clarkia unguiculata Robert F. Hoover 1937-5-14 2110 Contra Costa Antioch sand-dunes Comment
  UCSC005354  Clarkia unguiculata Randall Morgan 2004-5-19 4129 Contra Costa Richmond, From Annie's Annuals Comment
  JEPS68969  Claytonia exigua subsp. exigua Edward Lee 1935-3-10 1303 Contra Costa Nortonville , Kirker Creek (s watershed Kirker Creek) Comment
  SBBG69731  Claytonia exigua subsp. exigua unknown 1895-1 Contra Costa Mt Diablo Comment
  CAS-BOT-BC439169  Claytonia exigua subsp. exigua W. H. Brewer 1862-5-12 1082 Contra Costa Monte [Mount] Diablo Comment
  CAS-BOT-BC439173  Claytonia exigua subsp. exigua Elsie Zeile 1909-4-18 s.n. Contra Costa Redwood Peak Comment
  UC2028068  Claytonia exigua subsp. exigua Barbara Ertter, Tony Morosco 1998-4-12 16006 Contra Costa Mount Olympia on north side of Mount Diablo, below false summit on East Trail. Comment
  CAS-BOT-BC439332  Claytonia gypsophiloides W. H. Brewer 1862-5-7 1056 Contra Costa Monte [Mount] Diablo Comment
  CAS-BOT-BC439436  Claytonia parviflora subsp. parviflora Mary L. Bowerman 1930-6-14 331 Contra Costa Mount Diablo. Meridian Peak Summit Comment
  CAS-BOT-BC439440  Claytonia parviflora subsp. parviflora John Thomas Howell 1933-5-14 11252 Contra Costa Hills east of St. Mary's College Comment
  UC692536  Claytonia parviflora subsp. parviflora Mary L. Bowerman 1933-5-3 1966 Contra Costa Mountain Springs Canyon Mount Diablo (just below the deer trough (Pioneer Road)) Comment
  HSC24671  Claytonia perfoliata B. Dwelley 1966-4-6 19 Contra Costa Eden Plains Rd., 4 mi. E of Brentwood 20 Comment
  POM225662  Claytonia perfoliata J. T. Howell 1931-3-10 5755 Contra Costa East side of Mt. Diablo 7 miles from Clayton on Livermore road. Comment
  CAS-BOT-BC440075  Claytonia perfoliata subsp. perfoliata John Thomas Howell 1931-3-10 5755 Contra Costa East side of Mt. Diablo 7 miles from Clayton on Livermore road Comment
  UC1057451  Claytonia perfoliata subsp. perfoliata G. Thomas Robbins 1937-4-25 148 Contra Costa 2 mi e Alamo Comment
  UC1136717  Claytonia perfoliata subsp. perfoliata R. C. Wilson 1935-3-12 121 Contra Costa 1.5 mi ne Danville; Mt. Diablo Quad. 198 Comment
  UC1300963  Claytonia perfoliata subsp. perfoliata Helen K. Sharsmith 1962-3-25 4910 Contra Costa hills between Happy Valley and Alhambra Valley; San Francisco Bay Region 304 Comment
  UCD100829  Claytonia perfoliata subsp. perfoliata Robert L. Rudd 1947-3-24 23 Contra Costa Picnic Ground, Wildcat Canyon. Comment
  CAS-BOT-BC91356  Clematis lasiantha V. Rattan 1883-4-1 s.n. Contra Costa Martinez. Comment
  UC136298  Clematis lasiantha C. F. Baker 1903-4-28 2946 Contra Costa Mt. Diablo, Mitchells Canyon Comment
  JEPS112470  Clinopodium douglasii D. G. Kelch 2005-5-1 05 .184 Contra Costa Crockett - Edwards Canyon 150 Comment
  JEPS120287  Clinopodium vulgare Barbara Ertter with David Gowen 2012-9-20 21018 Contra Costa lower Vollmer Peak Trail paralleling South Drive, southeastern Tilden Park in Berkeley Hills, ca. midway along trail, wide spot in shade of bay and pine (same location as 20919) Comment
  CAS-BOT-BC499321  Clintonia andrewsiana Walter Knight; Irja Knight 1988-5-21 6129 Contra Costa Redwood Regional Park, between pipe bridge and single curb bridge along Stream Trail 274 Comment
  JEPS5870  Collinsia bartsiifolia var. bartsiifolia Fred Shoemaker 1938-4-11 Contra Costa 3 mi w Byron Comment
  JEPS65197  Collinsia heterophylla L. R. Heckard 1971-4-15 2470 Contra Costa along Morgan Territory Rd (7 mi N of intersection with Manning Rd); Mt. Diablo 487 Comment
  UC1733835  Collinsia heterophylla Kay H. Beach 1941-4-30 1079 Contra Costa 5 mi W of Byron; Marsh Creek Road 30 Comment
  UC71983  Collinsia sparsiflora Chestnut and Drew 1889-4-5 Contra Costa Martinez Comment
  SEINET12343275  Collinsia sparsiflora Ottley 1920-4-25 468 Contra Costa San Francisco Bay Region, Mitchell Canon, Mt. Diablo 305 Comment
  UC672470  Collinsia sparsiflora var. collina Herbert L. Mason 1929-3-15 5051 Contra Costa Nortonville Comment
  JEPS6346  Collinsia sparsiflora var. sparsiflora W. L. Jepson 1922-4-16 9599 Contra Costa San Pablo Valley Comment
  JEPS79511  Collomia diversifolia Edward Lee 1978-5-13 Contra Costa Meridian Ridge Mt. Diablo Comment
  RSA29682  Conium maculatum Joseph A. Ewan 1936-7-5 9727 Contra Costa Wildcat Creek Comment
  CHSC23350  Convolvulus arvensis Willis Ball 1975-5-20 529 Contra Costa Contra Loma Regional Park. In area #1. At e end of island in center of main parking lot at s end of reservoir. 36 Comment
  UC2042954  Convolvulus arvensis Barbara Ertter with David Gowen and Mike Park 2004-6-13 18375 Contra Costa Black Diamond Mines Regional Preserve, near pond on south branch of Old Homestead Loop Trail. Comment
  JEPS111731  Conyza canadensis D. G. Kelch 2004-9-2 04 .331 Contra Costa Pacheco Marsh east of Martinez and I-680 and east of lone tree Marsh 5 Comment
  UC1050105  Coprosma areolata N. Floy Bracelin 1942-3-22 1985 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1051043  Coprosma baueri N. Floy Bracelin 1942-11-1 2348 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS77538  Cordylanthus mollis subsp. mollis Charles Patterson June, 1978 Contra Costa tidal marsh near Shore Acres; West Pittsburg Comment
  JEPS78633  Cordylanthus mollis subsp. mollis Walter Knight and Neal Havlik 1979-10-7 3415 Contra Costa in marsh along tidal inlet Point Pinole Regional Shoreline (e end of shoreline) Comment
  JEPS84878  Cordylanthus mollis subsp. mollis Terry L. Palmisano August 1987 Contra Costa just w Hastings Slough; Concord Naval Weapons Station property Comment
  JEPS105307  Cordylanthus nidularius Dean W. Taylor 1994-7-26 14554 Contra Costa Bald Ridge, Mount Diablo State Park 762 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
  JEPS85587  Cordylanthus nidularius T. I. Chuang with L. R. Heckard and R. C. Bacigalupi 1968-6-27 6436 Contra Costa 3/4 mi NE of Deer Flat (NE flank of Bald Ridge); Mt. Diablo 670 Comment
  UC2027945  Cordylanthus pilosus subsp. pilosus Barbara Ertter 1997-9-7 15796 Contra Costa North side Mount Diablo, Donner Canyon Road below Cardinet Oaks Road junction. Comment
  CAS-BOT-BC287169  Coreopsis stillmanii Brandegee No date on label s.n. Contra Costa Mt Diablo Comment
  JEPS50113  Cornus glabrata W. L. Jepson May 22 1891-May 23 1891 14150 Contra Costa Mt. Diablo Region, Pine Canyon Comment
  CAS-BOT-BC209589  Cornus sericea H. E. McMinn 1922-5-30 34 Contra Costa By Pinehurst Resort in Large Redwood Canyon Comment
  LA40446  Cornus sericea subsp. sericea J. A. Ewan; 1936-7-5 9720 Contra Costa Reservoir road, Wildcat Creek Comment
  UC407389  Coronopus didymus Ira L. Wiggins 1930-4-18 4595 Contra Costa e end of Jersey Island, Fallow cornfield Jersey Island Comment
  RSA666415  Cortaderia jubata Barbara Ertter 1991-9-28 10854 Contra Costa [El Cerrito.] Comment
  UCD37373  Cortaderia selloana Beecher Crampton 1959-9-3 5456 Contra Costa Contra Costa County, 2 miles southeast of El Sobrante, along San Pablo Dam Road. Comment
  UC1619999  Cotoneaster pannosus Barbara Ertter 1997-1-5 15431 Contra Costa Ygnacio Valley Road at Lime Ridge between Walnut Creek and Clayton, south facing roadcut. Comment
  UC2032849  Cotula coronopifolia Doran, Andrew Scott 2012-3-20 720 Contra Costa Northeast part of Brooks Island, on trail to beach along spit. Comment
  UC2027742  Cotula coronopifolia Barbara Ertter 1997-1-5 15439 Contra Costa Lime Ridge Open Space on northwest side of Mount Diablo, section on north side of Ygnacio Valley Road. Comment
  UC2043011  Cotula coronopifolia Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14915 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  JEPS99543  Crassula aquatica Mary Bowerman 1975-9-14 Contra Costa Mount Diablo, Chase Pond. Comment
  CAS-BOT-BC427670  Crassula connata Peter H. Raven; H. L. Mason; R. Ornduff; et al 1957-4-4 10578 Contra Costa 3.0 miles s. of Byron Comment
  JEPS25118  Crassula connata var. subsimplex G. Thomas Robbins 1959-3-15 3961 Contra Costa hills at e. edge Rodeo 12 Comment
  UC1121528  Crocanthemum scoparium var. vulgare R. W. Lundh Contra Costa San Francisco Quadrangle Comment
  UC692624  Crocanthemum scoparium var. vulgare Mary L. Bowerman 1931-12-17 1072 Contra Costa e of, s face Rock Canyon; Mount Diablo, Fossil Ridge, Dan Cook Ridge Comment
  UC765095  Croton californicus R. F. Hoover 1937-5-14 2114 Contra Costa Antioch sand-dunes Comment
  CDA38798  Crypsis schoenoides D. G. Kelch 2006-8-12 6 .377 Contra Costa Carquinez Strait; Martinez. Along Alhambra Creek near train station. Comment
  UC1950064  Crypsis vaginiflora Barbara Ertter 1989-9-30 8865 Contra Costa Tilden Regional Park E of El Cerrito, East Bay Skyline Nat'l Recreation Trail (=Nimitz Way), pond 1 1/4 mi NW of Inspiration Point. Comment
  UC2028982  Cryptantha decipiens Barbara Ertter 2000-5-14 17016 Contra Costa Donner Basin on north side of Mount Diablo, Falls Trail north of Wild Oat Canyon. Comment
  JEPS67601  Cryptantha flaccida Mary L. Bowerman 1930-6-7 269 Contra Costa Meridian Peak summit Mount Diablo Comment
  UC691402  Cryptantha flaccida Mary L. Bowerman 1933-5-2 1955 Contra Costa below Pioneer Camp; Mount Diablo 762 Comment
  UC691633  Cryptantha micromeres Mary L. Bowerman 1933-4-22 1901 Contra Costa w of Cave Point; Mount Diablo, Inner Black Hills 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
  UC691349  Cryptantha muricata Mary L. Bowerman 1934-4-21 2536 Contra Costa Muir Area Mount Diablo Comment
  JEPS67770  Cryptantha nevadensis R. F. Hoover 1938-5-4 3348 Contra Costa e of Tassajero Creek 762 Comment
  RSA721362  Cryptantha torreyana var. pumila Barbara Ertter, Mary L. Bowerman 1994-6-19 12846 a Contra Costa Mt. Diablo State Park east of Walnut Creek; lower Summit Parking lot, opening on north side. 1128 Comment
  UC1948929  Cupressus macrocarpa William J. Ferlatte, L. Maynard Moe 1970-4-27 1259 Contra Costa San Francisco Bay: Red Rock Island Comment
  SEINET3863389 Image available Cupressus macrocarpa Michael R. Tansey 1963-2-15 4 Contra Costa Moist Berkeley Clay, est exposure on hillside, east of golf courrse 30 yds. in Tilden Regional Park, Cal.; 0 183 Comment
  CDA5579  Cuscuta epithymum R. DeBoer 1966-9-15 Contra Costa M. V. Nursery, foot of Market Avenue, Richmond. 0 Comment
  CDA33504  Cuscuta japonica R. Fonseca 2008-10-27 PDR# 1455391 Contra Costa Rodeo; 2 California St. 0 Comment
  CDA41311  Cuscuta japonica R. Fonseca 2006-12-12 PDR 1373709 Contra Costa San Francisco Bay Area; 654 Marlesta Rd, Pinole. Sheet 2 of 2. 0 Comment
  CDA7755  Cuscuta japonica Niang 2008-2-13 PDR# 1454473 Contra Costa Carquinez Strait; Rodeo, 2 California St. 0 Comment
  UC2032851  Cuscuta pacifica Doran, Andrew Scott 2012-3-20 722 Contra Costa Northeast part of Brooks Island, on trail to beach along spit. Comment
  UC1197872  Cuscuta subinclusa Joseph P. Tracy 1932-9-10 10789 E Contra Costa Franklin Canyon 152 Comment
  JEPS99953  Cynara cardunculus A. Langston 2003-7-17 AL 67 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC299743  Cynara cardunculus John Thomas Howell 1953-3-15 28922 Contra Costa Danville Comment
  UC2013065  Cynara cardunculus Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14927 Contra Costa Northwest base of Mount Diablo access to Foothills Regional Park from North Gate road along Little Pine Creek. Comment
  CDA31110  Cynodon dactylon D. G. Kelch 2004-5-9 4 .208 Contra Costa Carquinez Strait Region; Crockett - Carquinez Scenic Drive. Scenic Drive west of Bull Valley Staging Area, east of Crockett, CA Comment
  JEPS100021  Cynodon dactylon S. O'Neil 2003-6-24 SEO 40 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD60088  Cynodon dactylon Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  UCD119162  Cynoglossum grande William B. Davis 1960-3-26 10 Contra Costa North Scenic Boulevard, ca. 1 mile below the North Gate of Mt. Diablo State Park. Comment
  CDA28981  Cynosurus echinatus D. G. Kelch, Suzanne Latham, Matt Beyers 2009-6-3 09 .330-B Contra Costa East Bay.; El Sobrante Ridge at end of Silver Belt Dr. on Miocene chert outcrop. Comment
  JEPS99550  Cynosurus echinatus Mary Bowerman 1976-6-24 Contra Costa Mount Diablo, inner Black Hills just west of meridian and south of crest. Comment
  RSA721595  Cynosurus echinatus Mary L. Bowerman 1975-6-7 s.n. Contra Costa Mount Diablo. Big Spring. 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-BC226638  Cyperus acuminatus Virginia I. Dains; Walter Knight 1986-8-8 5501 Contra Costa Jct Rock S1 & Werner Cut Comment
  CAS-BOT-BC114614  Cyperus eragrostis Thomas Morley 1940-12-3 90 Contra Costa Banks at upper end of San Leandro Lake near mouth of Redwood Creek. 129 Comment
  CAS-BOT-BC114618  Cyperus eragrostis Walter Knight; Wayne Roderick; Stephen W. Edwards; B. Doyle 1978-9-19 3264 Contra Costa Browns Island, South Landing. Comment
  SEINET3909446  Cyperus eragrostis K. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4982 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough. SE portion of Bethel Slough.; 0 610 Comment
  CAS-BOT-BC114071  Cyperus squarrosus Walter Knight; Frank Almeda; Joanne Dean; B. Doyle 1978-10-11 3324 Contra Costa Browns Island, Botany Cove. Comment
  UC1446057  Cystopteris fragilis Alan Smith with Ed Lee 1979-4-25 732 Contra Costa trail beyond Devil's Elbow toward saddle between Mt Diablo and North Peak; n side Mt. Diablo 1066 Comment
  CDA23109  Cytisus scoparius D. G. Kelch, D. A. Weinstein 2008-4-25 8 .08 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
  CHSC114319  Cytisus spachianus T. C. Fuller 1964-3-10 11707 Contra Costa Solano Ave. turn-off from freeway (IS 80), Richmond, Contra Costa County. Comment
  CDA26940  Cytisus striatus D. G. Kelch 2007-4-27 7 .202 Contra Costa Carquinez Strait; Martinez; on hill NE of Hwy 4 at Alhambra Rd. Comment
  UC691894  Daucus pusillus Mary L. Bowerman 1931-5-21 878 Contra Costa Curry-Cave Point trail Mt. Diablo; , Curry-Cave Point trail 304 Comment
  CAS-BOT-BC287365  Deinandra Walter Knight 1977-7-24 s.n. Contra Costa Black Diamond Mines Regional Preserve. Nortonville Ridge 304 Comment
  JEPS111707  Deinandra corymbosa D. G. Kelch 2004-5-7 04 .179 Contra Costa Ca ada del Cierbo Ca ada del Cierbo 40 Comment
  UC480997  Deinandra kelloggii Mary K. Curran May 1886 Contra Costa near Antioch Comment
  UC990571  Deinandra kelloggii James I. McMurphy 1908-10-18 Contra Costa Antioch Comment
  CAS-BOT-BC294023  Deinandra kelloggii H. M. Hall 1930-6-18 12793 Contra Costa Stockton Ranch, south of Antioch Comment
  CAS-BOT-BC291810  Deinandra lobbii David D. Keck 1933-11-2 2615 Contra Costa 1 mi. E. of Nichols, N. Contra Costa County Comment
  UC1795684  Delphinium californicum subsp. interius Barbara Ertter, Mary L. Bowerman 1994-6-19 12841 Contra Costa Mt. Diablo State Park east of Walnut Creek; Muir Picnic Area on Summit Road, 1005 Comment
  CAS-BOT-BC10308  Delphinium hesperium Alice Eastwood 1915-5-30 4439 Contra Costa Mt. Diablo Comment
  RSA398649  Delphinium hesperium E. E. Stanford 1930-5-24 1512 Contra Costa Marsh Creek Canyon. Comment
  JEPS107086  Delphinium hesperium subsp. hesperium Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14242 Contra Costa South side Mount Diablo, near head of Curry Creek along road to Sheepherders Springs from Sloan Road. Comment
  JEPS120270  Delphinium hesperium subsp. hesperium Barbara Ertter with David Gowen 2012-6-9 21022 Contra Costa at junction of Seaview Trail and road into EBMUD land north of Vollmer Peak, southeastern Tilden Park in Berkeley Hills Comment
  UC2027807  Delphinium hesperium subsp. hesperium Barbara Ertter with Holly Forbes 1997-4-20 15545 Contra Costa North base of Mount Diablo, trail to Back Creek from Mitchell Canyon trailhead. Comment
  UC13984  Delphinium hesperium subsp. pallescens Chesnut and Drew 1889-4-17 Contra Costa Antioch Comment
  CAS-BOT-BC10009  Delphinium hesperium subsp. pallescens R. D. Stone 1983-5-17 510 Contra Costa Extreme northern end of the Jackson Ranch, near Alameda County line ca. 9 mi. NE of Livermore and 1 mi. NNE of Brushy 182 Comment
  UC9183  Delphinium hesperium subsp. pallescens W. H. Brewer 1862-5-29 1185 Contra Costa near Camp 71; Marsh's Ranch Comment
  CAS-BOT-BC10150  Delphinium nudicaule L. R. Abrams 1921-5-25 8037 Contra Costa Summit of Mount Diablo Comment
  RSA398660  Delphinium nudicaule John Doyen, Glenn A. Gorelick 1966-4-22 s.n. Contra Costa Russelman Park, Mt. Diablo State Park. 305 Comment
  UC69615  Delphinium parryi subsp. parryi R. C. Marsh 1900-4-5 Contra Costa Oakley Comment
  UC1819000  Delphinium patens subsp. patens Barbara Ertter, Tom Delendick 1996-5-2 14614 Contra Costa Mount Diablo State Park, Deer Flat Road north of Juniper Camp, at cut through open live oak forest, northwest-facing slope. 853 Comment
  UC635345  Delphinium patens subsp. patens H. L. Mason 1928-4-29 4440 Contra Costa s slope of mt Mount Diablo, Sycamore Canyon Comment
  CAS-BOT-BC116453  Delphinium patens subsp. patens H. L. Mason 1929-3-29 5136 Contra Costa Marsh Creek Road two miles above Clayton Comment
  CAS-BOT-BC116461  Delphinium patens subsp. patens J. T. Howell 1931-3-10 5758 Contra Costa 7 miles east of Clayton, Mt. Diablo region Comment
  JEPS5529  Delphinium recurvatum R. F. Hoover 1938-3-25 2900 Contra Costa Byron Hot Springs Comment
  OBI10610  Delphinium recurvatum Robert F. Hoover 1967-4-28 10511 Contra Costa Byron Hot Springs Comment
  UC199142  Delphinium variegatum Chesnut and Drew 1887-4-16 Contra Costa Clayton Comment
  UCSB11260  Delphinium variegatum Hayes, Judy 1961-3-30 Contra Costa South Gate of Mount Diablo State Park 182 Comment
  CAS-BOT-BC11023  Dendromecon rigida W. W. Carruth 1907-5-1 s.n. Contra Costa Moraga Valley Comment
  UC60233  Deschampsia cespitosa subsp. beringensis Jos. Burtt Davy 1900-6-7 6667 Contra Costa near Martinez Martinez Comment
Read comments Sep 27 2007
  CAS-BOT-BC192544  Deschampsia cespitosa subsp. holciformis Walter Knight; Joanne Dean 1978-8-14 3151 Contra Costa Browns Island Comment
  CAS-BOT-BC192678  Deschampsia danthonioides Ira L. Wiggins 1930-4-17 4576 Contra Costa 1/4 mi S. of Byron Comment
  CAS-BOT-BC192674  Deschampsia danthonioides Bolander 6072 Contra Costa Unspecified Comment
  SEINET3927628  Deschampsia elongata Glen Holstein 2000-7-27 s.n. Contra Costa SE El Sobrante, NE side of San Pablo Ridge.; 0 Comment
  UC692102  Dicentra chrysantha Mary L. Bowerman 1932-9-3 1529 Contra Costa Muir Area; Mount Diablo Comment
  CDA39457  Dichelostemma capitatum D. G. Kelch 2007-3-24 7 .092 Contra Costa Carquinez Strait; Ozol; between Port Costa and Martinez, near old brick quarry. Comment
  JEPS75528  Dichelostemma capitatum P. F. Yorks 1976-3-7 116 Contra Costa ca 2 km s Bear Creek Road (on Hampton Road, in Hampton Road Natural Reserve, n of Briones Reservoir); Hampton Road Natural Reserve 200 Comment
  SEINET3559560 Image available Dichelostemma capitatum Lewis S. Rose 1932-3-15 3284 Contra Costa Byron. Comment
  UC3240  Dichelostemma capitatum W. H. Brewer 1862-4-24 991 Contra Costa near Camp 68; Martinez Comment
  UC618200  Dichelostemma capitatum R. F. Hoover 1938-2-21 2756 Contra Costa Point Richmond Comment
  SEINET12053833  Dichelostemma capitatum L. S. Rose 1932-1 3284 Contra Costa Byron Comment
  RSA367471  Dichelostemma capitatum subsp. capitatum H. de Forest 1930-4-6 s.n. Contra Costa [No locality information provided] Comment
  JEPS112492  Dichelostemma congestum D. G. Kelch 2005-4-24 05 .171 Contra Costa Franklin Canyon Franklin Canyon. Collier Hill. West Carbon. On knoll between fenced hill and railroad cut. 60 Comment
  UC2029186  Dichelostemma congestum Barbara Ertter 2000-5-14 17006 Contra Costa Donner Canyon on north side of Mount Diablo, SW end of Falls Trail between Middle Trail and Donner Creek crossing Comment
  CAS-BOT-BC500922  Dichelostemma volubile W. R. Dudley 1893-1-1 s.n. Contra Costa 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
  UC1050524  Diervilla florida N. Floy Bracelin 1944-4-23 1200 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  RSA0068054  Diplacus aurantiacus Katie Gallagher, Nick Jensen 2014-4-26 198 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  CAS-BOT-BC153952  Diplacus rattanii Alice Eastwood 1915-5-30 4542 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC121841  Dirca occidentalis Howard E. McMinn 1925-1-1 s.n. Contra Costa Head of San Leandro Creek Comment
  CAS-BOT-BC121845  Dirca occidentalis P. H. Raven 1956-4-8 8986 Contra Costa About 0.5 miles NE of Grizzly Peak 396 Comment
  OBI78484  Dirca occidentalis H. E. McMinn 1925-3-30 1402 Contra Costa Near summit Thornhill Rd and Skyline blvd Comment
  SEINET6957397  Dirca occidentalis Lorin I. Nevling 1996-2-15 342 Contra Costa Tilden Regional Park, Regional Parks Botanical Garden. Cultivated plant grown from seed from Crockett Road, south of Crocket (see Accession card). "Western Leatherwood." Comment
  UC635720  Dirca occidentalis H. L. Mason 1926-3-28 2800 Contra Costa Glory Hole Redwood Canyon 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-BC208654  Distichlis spicata A. A. Beetle 1941-6-24 s.n. Contra Costa Point Richmond on San Francisco Bay Comment
  CDA31689  Distichlis spicata A. A. Beetle 1941-6-24 1752 Contra Costa Point Richmond on San Francisco Bay 0 Comment
  UCR198215  Dittrichia graveolens Dean Kelch, A. G. Murdock 2005-11-3 05 .489 Contra Costa Carquinez Strait, entrance to Mt. Wanda 37 Comment
  JEPS128778  Dittrichia graveolens Kevin Hintsa 1997-9-30 Contra Costa Mount 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
  UC766267  Dodecatheon clevelandii subsp. patulum R. F. Hoover 1938-2-21 2749 Contra Costa Byron Hot Springs 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
  JEPS9520  Dodecatheon hendersonii W. L. Jepson 1923-3-11 9848 Contra Costa Mt. Diablo 396 Comment
  POM287080  Dodecatheon hendersonii Lyman Benson 1935-3-16 6279 Contra Costa Mitchell Canyon near Clayton; Mt. Range: Mt. Diablo; Watershed: Walnut Creek. 244 Comment
  UC1046584  Dodecatheon hendersonii Alex D. Hawkes and R. Bacigalupi 1951-4-22 4777 Contra Costa State Rd. #4 near Mt. Diablo (along Marsh Creek); , near Mt. Diablo Comment
  JEPS20291  Downingia insignis Lewis S. Rose 1956-4-16 56017 Contra Costa 2 mi se Byron 7 Comment
  JEPS22728  Downingia insignis Rimo Bacigalupi with Drs. L. Constance and R. Alava 1958-6-6 6366 Contra Costa 3 mi s Byron (between railroad tracks and the highway to Tracy) Comment
  SEINET5718194  Drimys winteri Shirley C. Tucker 1955-1 6088 B Contra Costa University of California Botanic Garden, Berkeley.; UC Botanic Garden Comment
  CAS-BOT-BC70864  Dryopteris arguta Mary L. Bowerman 1930-6-18 342 Contra Costa Dan Cook Canyon Comment
  JEPS111938  Dryopteris arguta D. G. Kelch 2004-9-2 04 .340 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Martinez (Ozol) CA East of Ozol 25 Comment
  UC1948932  Dryopteris arguta William J. Ferlatte, L. Maynard Moe 1970-4-27 1245 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC42145  Dryopteris arguta Ivar Tidestrom VI, 1895 7 Contra Costa canyon near Crockett Comment
  CAS-BOT-BC70862  Dryopteris arguta R. Bacigalupi 1922-9-24 s.n. Contra Costa Mitchell Canyon of Mt. Diablo 213 Comment
  UC692555  Dudleya cymosa Mary L. Bowerman 1935-5-22 3061 Contra Costa Twin Peaks Eagle Point Ridge 472 Comment
  CAS-BOT-BC428219  Dudleya cymosa subsp. paniculata Alice Eastwood 1915-5-30 4523 Contra Costa Mount Diablo Comment
  JEPS49893  Dudleya cymosa subsp. paniculata W. L. Jepson 1918-6-5 7604 Contra Costa North Peak Mount Diablo Comment
  POM319552  Echinochloa crus-galli Patricia Wilder 1961-8-29 1098 a Contra Costa Walnut Creek, near Calif. Hwy 24 west side of city; Coast Mt. Range 42 Comment
  UCD60937  Echinochloa crus-pavonis Beecher Crampton 1965-9-29 7530 Contra Costa 1 mile south of Oakley Cypress Road and O' Hara Ave. Comment
  UC692401  Echinochloa crus-pavonis Mary L. Bowerman 1936-10-24 3582 Contra Costa N road below 2-story house E of N gate North Gate (roadside) Comment
  CAS-BOT-BC113633  Eleocharis acicularis Virginia I. Dains; Walter Knight 1986-8-8 5461 Contra Costa Fay Is. Comment
  UC1812  Eleocharis macrostachya J. Burtt Davy 1897-9-4 4077 Contra Costa Stege Comment
  UC2028490  Eleocharis macrostachya Barbara Ertter 1998-5-3 16062 Contra Costa Area of Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo Comment
  SBBG122783  Elodea canadensis B. Ertter, B. Olson 1991-9-28 10841 Contra Costa S end of San Pablo Reservoir, between Orinda and El Sobrante 91 Comment
  UC1950090  Elodea canadensis Barbara Ertter with Brad Olson 1991-9-28 10841 Contra Costa at S end of reservoir; San Pablo Reservoir between Orinda and El Sobrante Comment
  CDA6124  Elymus X hansenii D. G. Kelch 2007-5-12 7 .29 Contra Costa Carquinez Strait; Franklin Ridge, S of Hwy 4 at McEwen Rd. Comment
  JEPS99567  Elymus elymoides Mary Bowerman 1975-6-7 Contra Costa Mount Diablo, by Big Spring trail. Comment
  CDA1574  Elymus glaucus D. G. Kelch 2002-5-24 2 .017 Contra Costa Carquinez Strait; 5th St. Prairie, Crockett. Comment
  POM205600  Elymus glaucus Jos Burtt Davy 1897-04 1762 Contra Costa Point Isabel. Comment
  UC756637  Elymus glaucus G. L. Stebbins Jr. 1946-6-9 3653 Contra Costa 2 mi e El Cerrito (near Mira VistaCountry Club) Comment
  CAS-BOT-BC228539  Elymus multisetus L. R. Abrams 1921-5-25 8004 Contra Costa On road to summit Mt. Diablo Comment
  UC691171  Elymus multisetus Mary L. Bowerman 1938-6-24 3690 Contra Costa Canyon Nook Mount Diablo (e side of creek) 670 Comment
  UC691179  Elymus trachycaulus Mary L. Bowerman 1932-10-16 1635 Contra Costa ne 2632 (n slope); Mount Diablo, Eagle Ridge 701 Comment
  UC1795674  Elymus trachycaulus subsp. trachycaulus Barbara Ertter, Holly Forbes 1996-2-11 14550 Contra Costa North side Mount Diablo; North Peak trail on east side on main peak, steep slope, openings among scrub oak, umbellularia. 1005 Comment
  SEINET12755579  Elymus triticoides J. B. Davy 1900-6-7 6658 Contra Costa Near Pacheco. Comment
  CDA2040  Elytrigia elongata T. C. Fuller 1961-9-13 7001 Contra Costa Hwy J4, ca. 4 miles southeast of Byron. 0 Comment
  JEPS96227  Elytrigia intermedia subsp. intermedia Barbara Ertter with Lynne Hosley and Sid Cowles 1992-6-7 11084 Contra Costa along rd. to quarry e. of Round Top Sibley Volcanic Regional Preserve; Oakland Hills, Sibley Volcanic Regional Preserve Comment
  JEPS111573  Epilobium brachycarpum D. G. Kelch 2004-9-2 04 .336 Contra Costa Pacheco Marsh Marsh east of Martinez and I-680 and east of lone tree Marsh. 5 Comment
  UCD105401  Epilobium brachycarpum Peter Rubtzoff 1954-9-14 1748 Contra Costa Lower San Joaquin River, E of Antioch. Comment
  JEPS44006  Epilobium canum subsp. canum W. L. Jepson 1921-11-19 9515 Contra Costa sw slope Mt. Diablo (half-way up) Comment
  UC1745970  Epilobium canum subsp. canum Annetta M. Carter 1933-11-25 419 Contra Costa Mount Diablo Comment
  UC692454  Epilobium canum subsp. canum Mary L. Bowerman 1930-8-31 442 Contra Costa near Garden-of-the-Gods; Mount Diablo, Rock City Ridge Comment
  UCD105799  Epilobium ciliatum subsp. ciliatum Terri Williamson 1990-5-22 72 Contra Costa 212 Poshard St. Pleasant Hill. 12 Comment
  UC2070524  Epipactis gigantea Barbara Ertter with David Gowen, J. Ginochio, M. Park, S. Matson, A. Moore, S. D'Alcamo, J. Greenhouse, K. Kersh and J. Gawthrup 2005-5-8 18565 Contra Costa Long Ridge on west side of Mount Diablo, stringer below Moses Rock Spring on Burma Road. Comment
  JEPS79478  Equisetum hyemale subsp. affine Edward Lee with C. Belshaw 1935-7-28 1700 Contra Costa w. end Las Trampas Ridge 426 Comment
  CAS-BOT-BC57259  Equisetum laevigatum Mary L. Bowerman 1931-5-16 864 Contra Costa Lower Silver Spring Comment
  POM300618  Equisetum laevigatum Mary L. Bowerman 1931-10-31 1063 Contra Costa South Road, in bend of road a little below junction. Mt Diablo. Comment
  JEPS111943  Equisetum telmateia subsp. braunii D. G. Kelch 2003-8-13 03 .130 Contra Costa Pinole Creek 68 Comment
  CDA42474  Equisetum telmateia var. braunii D. G. Kelch 2003-8-13 3 .13 Contra Costa Carquinez Strait; Pinole Creek. Comment
  POM300620  Equisetum telmateia var. braunii Mary L. Bowerman 1939-3-31 3737 Contra Costa Johnny Walker Spring. 732 Comment
  CDA31759  Eragrostis cilianensis Deviney 2007-8-2 PDR# 1455080 Contra Costa Brentwood (Knightsen); orchard on Sellers Ave. N of Delta Rd. Comment
  UCD63196  Eragrostis curvula George W. Murray 1964-7-24 Contra Costa Along dry roadside cut, 1 to 2 miles E of Clayton, Marsh Creek Road. Comment
  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
  UCD63814  Eragrostis mexicana subsp. virescens Beecher Crampton 1965-9-29 7531 Contra Costa 1 mile south of Oakley, Cypress Road and O' Hara Ave. 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
  UC1118630  Ericameria arborescens R. C. Wilson 1935-3-13 128 Contra Costa 1.5 mi w of Cave Pt.; Mt. Diablo Quadrangle 563 Comment
  POM359374  Ericameria linearifolia H. E. McMinn 1922-6-2 96 Contra Costa Near summit of Mt. Diablo Comment
  UC1543102  Ericameria linearifolia Donald G. Nelson 1937-4-24 520 a Contra Costa on March Creek Road in rolling hill country n of Byron (edge of gravely soil pit evidently dug out of former bank of stream, open sunny area) Comment
  UC36554  Ericameria linearifolia H. N. Bolander 1866-4-1 6141 Contra Costa Mount Diablo Comment
  UC672254  Ericameria linearifolia H. L. Mason 1926-3-7 2707 Contra Costa near summit Mount Diablo Comment
  UC691863  Ericameria linearifolia Mary L. Bowerman 1930-6-18 351 Contra Costa Meridian Peak summit Mount Diablo, Meridian Peak (open rocky slope on e side) Comment
  UC86674  Ericameria linearifolia unknown 1889-5-1 Contra Costa Antioch Comment
  UCD131386  Ericameria linearifolia P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UCD131397  Ericameria linearifolia R. A. Pendleton 1934-3-20 s.n. Contra Costa Mount Diablo. Comment
  CAS-BOT-BC287533  Ericameria linearifolia Rattan 1886-6-14 s.n. Contra Costa W slope of Mt Diablo Comment
  SEINET5552883  Ericameria linearifolia H. S. Gentry 1931-1 54 Contra Costa Collected near Mt. Diablo. Comment
  UC31471  Erigeron foliosus var. franciscensis Edw. L. Greene 1892-6-20 Contra Costa Mount Diablo Comment
  UC536674  Erigeron petrophilus var. petrophilus G. Ledyard Stebbins 1935-9-15 Contra Costa Wildcat Canyon Berkeley Hills, Wildcat Canyon Comment
  CDA37271  Eriobotrya japonica D. G. Kelch 2011-3-5 11 .033 Contra Costa Carquinez Strait Region; Richmond. Chevy s Hill. Comment
  CAS-BOT-BC224221  Eriodictyon californicum Alice Eastwood; John Thomas Howell 1936-4-19 s.n. Contra Costa Nortonville Comment
  UC126026  Eriodictyon californicum Katharine Brandegee June, 1908 Contra Costa Antioch Comment
  UC1613946  Eriodictyon californicum Charles M. Belshaw 1935-6-24 1027 Contra Costa Sobrante Hills Comment
  CDA22474  Eriogonum angulosum J. Simmen 1958-11-6 1515 -58 Contra Costa Palm Tract, Brentwood. 0 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
  UC691087  Eriogonum gracile Mary L. Bowerman 1932-8-27 1524 Contra Costa s Turtle Rock; Mount Diablo Comment
  UC2027963  Eriogonum gracile Barbara Ertter 1997-8-24 15772 Contra Costa Mount Diablo, near first corner on Summit Road below Toyon Campground. Comment
  UC692017  Eriogonum gracile var. gracile Mary L. Bowerman 1930-6-7 279 Contra Costa summit of Mount Diablo Mount Diablo Comment
  UC692018  Eriogonum gracile var. gracile Mary L. Bowerman 1932-11-11 1639 Contra Costa Little below Moses Rock Spring (ridge leading up from Buckle Point (on west road)); Mount Diablo Comment
  UC692050  Eriogonum gracile var. gracile Mary L. Bowerman 1930-9-9 458 Contra Costa North Peak, Mount Diablo Mount Diablo; above Gabriel-Hinks'? Comment
  RSA107410  Eriogonum gracile var. gracile L. S. Rose 1955-10-17 55187 Contra Costa Antioch 15 Comment
  SEINET8349867  Eriogonum nudum Barbara Ertter 1997-8-18 15766 Contra Costa Antioche Dunes (USFWS National Wildlife Refuge) on San Joaquin River east of Antioch, southwest corner of refuge north of railroad tracks in former vineyard. Comment
  JEPS112018  Eriogonum nudum subsp. nudum Dean G. Kelch and Andrew G. Murdock 2004-5-28 AGM 293 Contra Costa Pinole Peak. Comment
  UC692045  Eriogonum nudum var. auriculatum Mary L. Bowerman 1930-8-24 424 Contra Costa Mitchell Canyon, lower trail Mount Diablo Comment
  UC692159  Eriogonum nudum var. auriculatum Annetta Carter 1940-6-22 1600 Contra Costa Lime Ridge, n edge of s chaparral patch Mount Diablo 243 Comment
  UC692165  Eriogonum nudum var. auriculatum Mary L. Bowerman 1933-9-3 2425 Contra Costa North Peak ridge Mount Diablo Comment
  UC692197  Eriogonum nudum var. auriculatum Mary L. Bowerman 1932-9-17 1578 Contra Costa Donner Canyon, w branch below fork Mount Diablo Comment
  UC692198  Eriogonum nudum var. auriculatum Mary L. Bowerman 1932-10-1 1597 Contra Costa s Uncle Sam Canyon (Eagle Point Ridge); Mount Diablo Comment
  CAS-BOT-BC268913  Eriogonum nudum var. auriculatum Annetta Carter 1940-6-22 1601 Contra Costa Mount Diablo. Lime Ridge 274 Comment
  POM301012  Eriogonum nudum var. auriculatum Annetta Carter 1940-6-22 1601 Contra Costa Mount Diablo: Lime Ridge, north edge of south chaparral patch. 274 Comment
  CAS-BOT-BC269817  Eriogonum nudum var. psychicola Peter Rubtzoff 1954-9-14 1745 Contra Costa Along lower San Joaquin River, east of Antioch Comment
  CAS-BOT-BC269819  Eriogonum nudum var. psychicola Peter Rubtzoff 1951-10-7 825 Contra Costa Along lower San Joaquin River, east of Antioch Comment
  UC1167551  Eriogonum nudum var. psychicola R. W. Thorp 1958-8-20 20 Contra Costa Antioch Comment
Read comments Aug 24 2011
  CAS-BOT-BC253093  Eriogonum roseum R. F. Hoover 1940-11-30 4699 Contra Costa 2 mi. south of Antioch Comment
  SEINET3836874 Image available Eriogonum roseum W. L. Jepson 1895-9-14 14779 Contra Costa Walnut Creek Comment
  UC526210  Eriogonum truncatum John Thomas Howell 1934-4-8 11816 Contra Costa 10 mi on Marsh Creek Road Clayton Comment
  UC85395  Eriogonum truncatum C. F. Baker 1903-4-28 2833 Contra Costa Marsh Creek Mt. Diablo, Marsh Creek Comment
  UC691562  Eriogonum umbellatum var. bahiiforme Mary L. Bowerman 1930-6-14 328 Contra Costa summit Mount Diablo Mount Diablo Comment
  UCD132150  Eriophyllum confertiflorum P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  CAS-BOT-BC298506  Eriophyllum confertiflorum L. Constance 1933-6-25 E 95 Contra Costa About halfway to the summit of Mount Diablo Comment
  UC507127  Eriophyllum confertiflorum var. confertiflorum Lincoln Constance 1933-6-25 E 95 Contra Costa about one - half way to the summit of Mt. Diablo (s slopes) Comment
  UC196644  Eriophyllum jepsonii J. W. Congdon 1896-5-29 Contra Costa Mt. Diablo Comment
  UC691685  Eriophyllum jepsonii Mary L. Bowerman 1931-6-2 918 Contra Costa Gregory Ranch Road Comment
  UCD132123  Eriophyllum jepsonii John Thomas Howell 1950-7-5 26636 Contra Costa above Nortonville. Comment
  CAS-BOT-BC300963  Eriophyllum lanatum var. achilleoides Alice Eastwood 1921-6-11 10609 Contra Costa Mt. Diablo Comment
  UC507128  Eriophyllum lanatum var. achilleoides Lincoln Constance 1933-6-25 E 96 Contra Costa sw slopes of Mount Diablo Comment
  UC691666  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1935-5-30 3097 d Contra Costa between the two ridges which converge at Twin Peaks (Eagle Point ridge) Mount Diablo 350 Comment
  CAS-BOT-BC300977  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1933-5-22 2163 Contra Costa Mount Diablo. Cave Point ridge Comment
  CAS-BOT-BC300980  Eriophyllum lanatum var. achilleoides L. Constance 1933-6-25 E 97 Contra Costa South slope, 1 mile below summit of Mt. Diablo Comment
  POM203445  Eriophyllum lanatum var. achilleoides J. T. Howell 1931-5-12 6485 A Contra Costa Marsh Creek Road NE of Mt. Diablo Comment
  POM301034  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1935-5-22 3065 Contra Costa Most westerly of the two ridged which converge at Twin Peaks (Eagle Point Ridge) 366 Comment
  RSA92293  Eriophyllum lanatum var. achilleoides F. W. Peirson 1923-7-1 4242 Contra Costa Short distance below summit of Mt. Diablo Comment
  CDA29179  Erodium botrys D. G. Kelch 2008-6-15 8 .246 Contra Costa Carquinez Strait; Crockett hills, S of Cummings Skyway, W of Crockett Blvd. Comment
  CDA8346  Erodium botrys D. G. Kelch, A. G. Murdock 2005-4-2 05 .104-B Contra Costa Carquinez Strait; EBRP. Crockett Hills Staging Area. Crockett. Comment
  HSC8469  Erodium botrys Greg Bos 1963-3-15 40 Contra Costa Albany Hill, Albany 9 Comment
  UC2032834  Erodium cicutarium Doran, Andrew Scott 2012-3-20 704 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  UC1130310  Erodium macrophyllum C. M. Belshaw 1936-5-15 2126 Contra Costa 1.75 mi ne Somerville; Mt. Diablo Quad. 152 Comment
  UC614848  Erodium macrophyllum Beryl O. Schreiber 1932-3-27 Contra Costa Mountain House Comment
  UC765825  Eryngium aristulatum var. aristulatum R. F. Hoover 1937-5-14 2125 Contra Costa Byron Hot Springs Comment
  UC692327  Eryngium castrense Mary L. Bowerman 1935-6-28 3171 Contra Costa Mt. Diablo, Chase Pond Comment
  UC2026171  Eryngium castrense Barbara Ertter with Tony Morosco 1996-1-15 14547 Contra Costa Mount Diablo (southeast side) trail from Curry Point to Frog Pond; edge of Sheepherder Pond. Comment
  CHSC67627  Eryngium vaseyi James D. Jokerst 1989-3-28 3062 Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. Comment
  UC1034739  Erysimum capitatum G. B. Rossbach 1955-3-20 571 Contra Costa steep upper s slope Mount Diablo 1005 Comment
  UC1126603  Erysimum capitatum C. M. Belshaw 1936-5-8 2053 A Contra Costa se slope Mt. Diablo Quadrangle, Mt. Diablo (Plot 5) Comment
  POM224444  Erysimum capitatum var. angustatum Alice Eastwood, J. T. Howell 1936-4-19 s.n. Contra Costa Antioch 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
  RSA102142  Erysimum capitatum var. capitatum G. B. Rossbach 1955-3-20 571 Contra Costa Mt Diablo. 1006 Comment
  UC10540  Erysimum capitatum var. capitatum J. Burtt Davy 1895-4-7 876 Contra Costa Antioch; ; Type locality of Cheiranthus angustatus Greene Comment
  RSA298536  Erysimum capitatum var. capitatum Robert A. Norris, John L. Inase 1981-5-10 4158 Contra Costa Near North Gate Road, Mt Diablo. 930 Comment
  CAS-BOT-BC402980  Eschscholzia californica Mary L. Bowerman 1933-5-3 1975 Contra Costa Mount Diablo. Due south of Meridian Peak summit 731 Comment
  CAS-BOT-BC402994  Eschscholzia californica Brandegee 1889-5-1 s.n. Contra Costa Antioch Comment
  UC692172  Eschscholzia californica Mary L. Bowerman 1935-5-22 3059 Contra Costa saddle w Twin Peaks (Eagle Point ridge); Mount Diablo 441 Comment
  POM253322  Eschscholzia californica subsp. californica A. A. Heller 1938-4-9 15018 Contra Costa 3 miles southwest of Antioch. Comment
  CAS-BOT-BC5937  Eschscholzia recta Mary Katherine (Mrs.) Brandegee 1889-5-1 s.n. Contra Costa Antioch Comment
  UC1789212  Eucalyptus tereticornis Barbara Ertter 1998-5-10 16116 Contra Costa Lime Ridge Open Space, single sapling in quarry area on west side. [Flowering material collected from same plant in 2001 as Ertter17604] 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
  UC1613298  Eucrypta chrysanthemifolia var. chrysanthemifolia Charles M. Belshaw 1935-6-24 1022 Contra Costa Sobrante Hills Comment
  UC1618208  Eucrypta chrysanthemifolia var. chrysanthemifolia Barbara Ertter 1991-6-1 10078 Contra Costa hills w Danville (e side of Wind Caves on Sycamore Trail to Devil's Hole); Las Trampas Regional Wilderness, Wind Caves 548 Comment
  UC592184  Eucrypta chrysanthemifolia var. chrysanthemifolia H. L. Mason 1928-4-29 4424 Contra Costa Mount Diablo Comment
  CDA17966  Euphorbia oblongata R. M. Case 1999-10-5 PDR 004978 Contra Costa Central California; Wildcat Canyon Rd. at Tilden Park Golf Course above Berkeley. 0 Comment
  JEPS18166  Euphorbia oblongata Rimo Bacigalupi with G. T. Robbins 1956-5-11 5641 Contra Costa 0.25 mi nw (above) Glen Frazer Station (on Santa Fe Railway, in Franklin Canyon); Franklin Canyon 106 Comment
  UC1276068  Euphorbia oblongata T. C. Fuller 1959-6-25 2679 Contra Costa ca 4 mi w Martinez; Alhambra Valley Comment
  CDA4842  Euphorbia oblongata Margaret Bellue, A. Seeley Jun 1955 Contra Costa Highway 4, near Concord. 0 Comment
  CDA4843  Euphorbia oblongata T. C. Fuller 1961-7-6 6585 Contra Costa Carquinez Strait; Alhambra Valley, Highway 4, 0.5 mile west of Glen Frazier Station, ca. 4 miles west of Martinez. 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
  UC692696  Euphorbia spathulata Mary L. Bowerman 1931-5-2 792 Contra Costa n end Eagle Point ridge; Mount Diablo Comment
  CAS-BOT-BC312169  Eurybia radulina Mary L. Bowerman 1932-9-5 1549 Contra Costa Inner Black Hills east of the meridian, Mount Diablo Comment
  UC1999853  Eurybia radulina J. C. Semple, B. A. Suripto, T. Ahmed 1990-8-16 9340 Contra Costa Charles Tilden Reg. Park; Vollmer Peak. Comment
  CDA4939  Euthamia occidentalis D. G. Kelch 2006-9-15 6 .473 Contra Costa Carquinez Strait; Martinez. Waterfront Rd. Marina Dr. , 100 m. W of Pacheco Slough. Comment
  CAS-BOT-BC458288  Euthamia occidentalis Walter Knight; Irja Knight 1978-8-14 3139 Contra Costa Browns Island Comment
  CDA2178  Festuca arundinacea T. C. Fuller 1961-9-13 7002 Contra Costa Hwy J4, ca. 4 miles southeast of Byron. 0 Comment
  CAS-BOT-BC278317  Festuca californica subsp. californica Mary L. Bowerman 1931-5-2 788 Contra Costa Mount Diablo. North end of Eagle Point ridge Comment
  POM300669  Festuca californica var. californica Mary L. Bowerman 1931-4-25 757 Contra Costa Mount Diablo, near junction of South and West roads. Comment
  UC2028473  Festuca idahoensis Barbara Ertter with Richard K. Brummitt 1998-5-6 16099 Contra Costa Western Drive on Point San Pablo/Point Molate west of Richmond, base of roadcut south of Naval Fuel Depot Comment
  UC1795647  Festuca rubra Barbara Ertter, Brad Olson 1994-5-7 12752 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  CDA5267  Filago californica D. G. Kelch, A. G. Murdock 2005-5-13 5 .278 Contra Costa Carquinez Strait Region; Martinez - West: Ozol Rock and Scenic Drive. Comment
  SEINET3562429 Image available Forestiera neomexicana Lewis S. Rose 1932-5-26 32117 Contra Costa Nortonville. 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
  CDA42343  Frangula californica D. G. Kelch 2012-5-27 12 .07 Contra Costa Carquinez Strait Region; Pinole Valley Park. Comment
  CAS-BOT-BC52536  Frangula californica subsp. californica Mary L. Bowerman 1932-11-19 1657 Contra Costa Lower Grapevine Spring Comment
  CAS-BOT-BC62923  Frangula californica subsp. tomentella L. R. Abrams 1916-6-30 5706 Contra Costa Mt. Diablo near Lake. Comment
  CAS-BOT-BC223861  Frankenia salina Walter Knight; Irja Knight 1968-8-14 2418 Contra Costa On Contra Loma Drive, north side of road, Contra Loma Regional Park, near Antioch Comment
  JEPS25153  Frankenia salina G. Thomas Robbins with John Weiler 1959-5-23 4023 Contra Costa nw extension Brooks Island (on breakwater (partly natural, partly man-made)); San Francisco Bay, Richmond Comment
  UC2028959  Frankenia salina Barbara Ertter 2002-8-24 18022 Contra Costa Dunn Creek south of Mount Diablo Mine property on NE base of Mount Diablo. Comment
  UC691836  Fraxinus dipetala Mary L. Bowerman 1933-4-26 1935 Contra Costa North Peak, ridge running se from the peak Mount Diablo 518 Comment
  UC691855  Fraxinus dipetala Mary L. Bowerman 1935-6-1 3104 Contra Costa first small ridge e Mitchell-Pine divide; Mount Diablo 975 Comment
  UC691869  Fraxinus dipetala Mary L. Bowerman 1930-6-22 363 Contra Costa Mitchell Canyon Mount Diablo Comment
  CAS-BOT-BC136074  Fritillaria affinis Lewis S. Rose 1934-3-7 34047 Contra Costa Mt. Diablo Comment
  JEPS61961  Fritillaria affinis W. L. Jepson 1921-5-22 9218 Contra Costa Mount Diablo, half way up Mount Diablo Comment
  UC765860  Fritillaria affinis R. F. Hoover 1939-4-13 4013 Contra Costa head of Markley Canyon, (west branch) Markley Canyon Comment
  JEPS2598 Image available Fritillaria agrestis J. Burtt Davy 1895-4-7 987 Contra Costa Antioch Comment
  JEPS55706  Fritillaria liliacea W. Hirano 1954-3-11 Contra Costa opposite Mira Vista Country Club (at Arlington Avenue); Arlington Avenue 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
  JEPS52813  Galium andrewsii subsp. gatense Lauramay T. Dempster 1965-5-2 4089 Contra Costa just above Bridlepath Campground; Mt. Diablo Comment
  JEPS7030  Galium andrewsii subsp. gatense W. L. Jepson 1918-6-5 7606 Contra Costa summit North Peak Mt. Diablo 1066 Comment
  UC1143116  Galium andrewsii subsp. gatense C. M. Belshaw 1936-5-8 2058 Contra Costa se slope Mt. Diablo Quadrangle, Mt. Diablo (Plot 5) Comment
  CDA33985  Galium aparine D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .11 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  JEPS49754  Galium murale Rimo Bacigalupi, and Alice Howard, and Paul Hutchison 1967-3-29 9222 Contra Costa upper reaches of canyon Las Trampas Ridge, Bolinger Canyon (w slope of ridge) 381 Comment
  JEPS112107  Galium porrigens var. porrigens D. G. Kelch 2003-4-3 03 .357 Contra Costa Cummings Skyway 134 Comment
  JEPS6608  Galium porrigens var. porrigens Mary L. Bowerman 1930-6-22 370 Contra Costa Deer Flat Mount Diablo Comment
  CDA1103  Galium spurium D. G. Kelch, A. G. Murdock 2003-3-21 3 .076 Contra Costa Carquinez Strait Region; Martinez; West: Ozol Rock and Scenic Drive. Comment
  JEPS112104  Galium spurium D. G. Kelch 2003-3-21 03 .76 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  CAS-BOT-BC200632  Garrya elliptica H. E. McMinn 1925-3-30 1403 Contra Costa Near summit Thornhill Rd and Skyline Blvd. 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
  UC692507  Garrya elliptica Mary L. Bowerman 1932-1-30 1082 Contra Costa Inner Black Hills Mount Diablo (nw corner of basin of ne fork of Sycamore Creek) Comment
  UCD35543  Garrya elliptica Beecher Crampton 1957-11-20 4651 Contra Costa Berkeley Hills. Contra Costa- Alameda County line. Comment
  UC876007  Garrya flavescens Lewis S. Rose 1941-3-22 41054 Contra Costa near summit Mt. Diablo 1188 Comment
  UCD102372  Garrya veatchii Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Burma Road at Mount Diablo. 520 Comment
  CAS-BOT-BC282611  Gastridium phleoides Mary L. Bowerman 1935-7-22 3191 Contra Costa Hidden Pond, Mount Diablo Comment
  JEPS111082  Gastridium ventricosum Lee Echols 2003-6-15 s.n. Contra Costa S. of Lark Drive in E portion of grassland W of EPA building within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond 15 Comment
  UC1606357  Gastridium ventricosum Barbara Ertter, Brad Olson 1991-9-28 10852 Contra Costa s end San Pablo Reservoir (between Orinda and El Sobrante); s end San Pablo Reservoir 97 Comment
  CDA4659  Geranium dissectum D. G. Kelch, A. G. Murdock 2003-3-28 3 .089 Contra Costa Carquinez Strait Region; Rodeo - Lone Tree Point. Comment
  SBBG122899  Geranium rotundifolium B. Ertter 1996-6-4 14684 Contra Costa NE of jct of Grizzly Peak Blvd and Golf Course Drive, Tilden Regional Park Comment
  RSA67597  Gilia achilleifolia Verne Grant, Alva Grant 1948-5-2 8424 Contra Costa in Bear Creek Canyon, 0.5 miles north of summit and ca. 3.8 miles from Orinda-San Pablo road. Comment
  UC2031458  Gilia achilleifolia subsp. achilleifolia Barbara Ertter with David Gowen 2014-4-12 21716 Contra Costa On north side of Prospectors Gap Road ca. 1 mile east of Mount Diablo summit Comment
  UC691599  Gilia achilleifolia subsp. achilleifolia Mary L. Bowerman 1935-5-8 2970 Contra Costa Muir Area, Mount Diablo Mount Diablo, Muir Area Comment
  UC1795760  Gilia achilleifolia subsp. multicaulis Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14226 Contra Costa Mt. Diablo southeast of Walnut Creek, serpentine knoll ca 1/2 airmile north of Curry Point, grassland, oaks around knoll. . 487 Comment
  UC691629  Gilia capitata subsp. capitata Mary L. Bowerman 1933-6-7 2263 Contra Costa North Peak Ridge , North Peak Ridge (Mount Diablo) Comment
  JEPS69577  Gilia capitata subsp. staminea W. L. Jepson 1931-4-5 15723 Contra Costa vicinity San Francisco Bay (Nortonville); vicin San Francisco Bay, Nortonville Comment
  UC903221  Gilia capitata subsp. staminea Ethel Crum 1936-4-5 1746 Contra Costa two mi w Byron; South Coast Ranges, w of Byron 45 Comment
  UC2027799  Gilia clivorum Barbara Ertter with Mary Bowerman, Lisa Schultheis 1995-3-31 13946 Contra Costa Mount Diablo State Park, steep west-facing bank with outcrops near weir at mouth of Mitchell Canyon Comment
  RSA489707A  Gilia tricolor H. de Forest 1930-3-28 s.n. Contra Costa Mt. Diablo. Comment
  SEINET3696190 Image available Gilia tricolor Lewis S. Rose 1932-3-15 3283 Contra Costa Byron. Comment
  RSA49035  Gilia tricolor Verne Grant, Alva Grant 1949-3-30 8640 Contra Costa 4 miles west of Byron on Marsh Creek road. Comment
  UC335961  Gilia tricolor subsp. tricolor J. G. Lemmon 1878-4-26 Contra Costa side of Mt. Diablo Comment
  UC367225  Gilia tricolor subsp. tricolor J. G. Lemmon 1878-4-26 Contra Costa side of Mt. Diablo Comment
  SEINET10464449  Githopsis diffusa subsp. robusta Bowerman 1933-6-7 BOWERMAN 2260 Contra Costa North Peak; Bare rocks by register Comment
  UC691591  Githopsis specularioides Mary L. Bowerman 1935-5-18 3034 Contra Costa Meridian Peak, n of the summit parking area Mount Diablo 1066 Comment
  JEPS43109  Glaux maritima J. B. Davy 1900-6-7 6665 Contra Costa Suisun Bay, Martinez Martinez; Suisun Bay, Martinez Comment
  CDA6041  Gnaphalium luteoalbum D. G. Kelch, A. G. Murdock 2005-5-1 5 .185 Contra Costa Carquinez Strait; Crockett; Edwards Canyon. Comment
  RSA721589  Gnaphalium luteoalbum Mary L. Bowerman 1978-6-24 s.n. Contra Costa Mount Diablo. Mitchell Creek, below 'reservoir' 191 Comment
  UCR247431  Gnaphalium stramineum Dean Kelch, Abigail Moore 2009-5-30 09 .317 Contra Costa Carquinez Strait, west of 5th St Prairie, Crockett 75 Comment
  CAS-BOT-BC305237  Grindelia hirsutula Lewis S. Rose 1954-9-27 54116 Contra Costa Byron 6 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
  JEPS25016  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
  JEPS41884  Grindelia hirsutula W. L. Jepson 1895-9-14 Contra Costa Walnut Creek Comment
  JEPS78613  Grindelia hirsutula Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3297 Contra Costa Browns Island Botany Cove, Browns Island Comment
  JEPS97539  Grindelia hirsutula R. D. Stone 1983-9-16 579 Contra Costa 4.5 mi SW Byron Hot Springs; Brushy Creek; SE1/4 of NW1/4 152 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
  UC1618419  Grindelia hirsutula Barbara Ertter, Diane Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10716 Contra Costa west-most point opposite Pittsburg Marina (Browns Island n of Pittsburg near confluence of Sacramento and San Joaquin Rivers); Browns Island Comment
  CAS-BOT-BC305239  Grindelia hirsutula H. E. McMinn No date on label 138 Contra Costa Above Richmond ferry slip Comment
  UCD35139  Grindelia robusta Beecher Crampton 1950-6-20 594 Contra Costa Richmond Comment
  UC10960  Guillenia flavescens unknown 1865-1 Contra Costa Mt. Diablo region Mt. Diablo Comment
  UC137040  Guillenia flavescens Katharine Brandegee 1907-5-4 Contra Costa between Antioch and Marsh Creek Comment
  UC691152  Guillenia flavescens Mary L. Bowerman 1935-4-22 2879 Contra Costa 2 mi from North Gate (North Road, just w of chaparral); Mount Diablo 213 Comment
  UC691154  Guillenia flavescens Mary L. Bowerman 1935-4-22 2879 Contra Costa 2 mi from North Gate (North Road, just w of chaparral); Mount Diablo 213 Comment
  JEPS68953  Guillenia lasiophylla Edward Lee 1935-3-10 1283 Contra Costa Donovan Road, w watershed of Kirker Creek Kirker Pass, Kirker Creek Comment
  UC56947  Guillenia lasiophylla H. M. Hall 1900-3-24 579 Contra Costa Briones Valley San Francisco Bay Region Comment
  UC691088  Guillenia lasiophylla Mary L. Bowerman 1933-4-26 1924 Contra Costa ese of North Peak ridge peak; Mount Diablo 609 Comment
  POM203484  Gutierrezia californica L. S. Rose 1932-10-2 32655 Contra Costa Marsh Creek Road. Comment
  RSA299550  Gutierrezia californica Edward Lee, Annetta Carter 1935-8-17 1622 Contra Costa Antioch Comment
  UC912309  Gutierrezia californica Herbert L. Mason 1929-9-21 5435 Contra Costa 3 mi above Clayton (Marsh Creek Road) Comment
  UC2070544  Gypsophila elegans Barbara Ertter with David Gowen, J. Ginochio, M. Park, S. Matson, A. Moore, S. D'Alcamo, J. Greenhouse, K. Kersh and J. Gawthrup 2005-5-8 18562 Contra Costa Moses Rock Ridge on west side of Mount Diablo; Deer Flat Road a short distance south of junction with Burma Road. Comment
  CAS-BOT-BC282858  Hainardia cylindrica E. E. Stanford 1930-5-16 1485 Contra Costa Near Old River Comment
  UC1051002  Hebe buxifolia N. Floy Bracelin 1943-7-19 2549 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  UC1050012  Hebe speciosa N. Floy Bracelin 1941-8-3 1537 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  UC32237  Helenium bigelovii Jos. Burtt Davy 1900-6-7 6671 Contra Costa near Martinez Comment
  UC80320  Helenium bigelovii J. W. Congdon 1893-7-29 Contra Costa Martinez Comment
  UC691763  Helenium puberulum Mary L. Bowerman 1930-8-24 413 Contra Costa Mitchell Canyon just above edge of road Mount Diablo Comment
  SEINET11843054  Helenium puberulum Unknown 1983-1 4954 Contra Costa Castro Ranch Road between Hillside St. & Alhambra Valley Rd Comment
  CAS-BOT-BC305328  Helianthella castanea John Thomas Howell 1931-5-12 6475 Contra Costa Nortonville Comment
  CDA23633  Helianthella castanea D. G. Kelch 2007-9-8 7 .57 Contra Costa Carquinez Strait; Pinole Valley Park. Comment
  JEPS112743  Helianthella castanea Dean W. Taylor 2001-3-21 17614 Contra Costa Mount Diablo; Mount Diablo State Park, near Balancing Rock (ridge forming southerly watershed boundary Curry Creek Canyon), along fire road descending from ridge into Devils Slide (East Fork Sycamore Creek) 457 Comment
  JEPS21041  Helianthella castanea R. F. Hoover 1939-4-13 4014 Contra Costa head of west branch Markley Canyon Comment
  UC1819054  Helianthella castanea Barbara Ertter, Chris Thayer 1995-4-25 13995 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Black Hawk Ridge Rd. on north side Black Hawk Ridge. Comment
  UC194925  Helianthella castanea H. M. Hall 1916-5-31 10137 c Contra Costa flat on s side Mt. Diablo 1066 Comment
  CAS-BOT-BC305324  Helianthella castanea W. C. McCalla 1925-4-22 s.n. Contra Costa Leona Heights near Oakland Comment
  JEPS112356  Helianthus californicus D. G. Kelch 2004-9-2 04 .332 Contra Costa Pacheco Marsh Marsh east of Martinez and I-680 and east of lone tree Marsh. Large perennial along road 5 Comment
  UC697183  Helianthus californicus Mary L. Bowerman 1932-9-17 1581 Contra Costa west fork Donner Canyon (streambed); Mount Diablo 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
  JEPS88686  Helianthus gracilentus Mary L. Bowerman 1932-10-1 1602 Contra Costa Mitchell Canyon Mount Diablo ((1931) burn near stream) Comment
  UC1063893  Heliotropium curassavicum H. S. Yates 1934-9-2 4073 Contra Costa 1 mi. n.e. Danville; Mt. Diablo Quad. 450 Comment
  UC1050190 Image available Helleborus orientalis var. atrorubens N. Floy Bracelin 1945-3-11 2410 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1584687  Helminthotheca echioides Jerry Powell 1987-7-14 1503 Contra Costa Point Molate Beach Comment
  UC691497  Helminthotheca echioides Mary L. Bowerman 1936-8-8 3524 Contra Costa w fork Diablo Stock Farm Canyon (= Emmons Cayon, Wattis Ranch); Mount Diablo, Diablo Stock Farm (Wattis Ranch) Canyon, w for Comment
  UC697141  Helminthotheca echioides Mary L. Bowerman 1936-10-24 3583 Contra Costa Mount Diablo, North Road 131 Comment
  RSA455876  Hemizonia E. E. Stanford 1930-9-20 2099 Contra Costa Near Walnut Creek Comment
  JEPS121012  Hemizonia congesta subsp. luzulifolia D. G. Kelch 2006-7-14 06 .333 Contra Costa Between Rte 4 and Carbon Rd. E Rodeo Comment
  UC201237  Hemizonia congesta subsp. luzulifolia H. M. Hall 1916-7-24 10254 Contra Costa Richmond Region of San Francisco Bay Comment
  UC201238  Hemizonia congesta subsp. luzulifolia H. M. Hall 1916-7-24 10253 Contra Costa Richmond Region of San Francisco Bay, Richmond Comment
  UC405440  Hemizonia congesta subsp. luzulifolia Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  UC691557  Hemizonia congesta subsp. luzulifolia Mary L. Bowerman 1933-9-9 2426 Contra Costa se-facing slope above Curry Canyon (onway to Blackberry Spring); Mount Diablo Comment
  UC762755  Hemizonia congesta subsp. luzulifolia R. F. Hoover 1939-4-25 4061 Contra Costa Richmond hills Richmond Comment
  UC912566  Hemizonia congesta subsp. luzulifolia Herbert L. Mason 7058 Contra Costa Laundry Farm Oakland Hills Comment
  CAS-BOT-BC314860  Hemizonia congesta subsp. luzulifolia R. F. Hoover 1966-8-31 9947 Contra Costa North of Livermore Valley on Highland Road Comment
  CAS-BOT-BC314874  Hemizonia congesta subsp. luzulifolia Walter Knight 1978-8-8 3109 Contra Costa On s.e. corner of Interstate 80 and Appian Way, near Pinole Comment
  CDA6977  Hemizonia corymbosa D. G. Kelch, A. G. Murdock 2004-5-7 4 .179 Contra Costa Carquinez Strait; Canada del Cierbo. Comment
  CDA33546  Hemizonia fitchii Fisher, Deviney 2010-6-2 PDR# 1645252 Contra Costa Byron; Armstrong Road Extension 1/3 mile southeast of Vasco Rd. Comment
  SEINET5782065 Image available Hemizonia fitchii L. S. Rose 1941-10-13 41464 Contra Costa 1 mi E of Walnut Creek Comment
  POM301046  Hemizonia fitchii Mary L. Bowerman 1936-9-17 3548 Contra Costa North Road 2.5 miles from North Gate. 244 Comment
  SEINET7883353 Image available Hemizonia obconica L. S. Rose 1941-1 41466 Contra Costa 6 mi W of Byron, on Marsh Creek Rd Comment
  RSA81667  Hemizonia parryi subsp. congdonii James I. McMurphy 1909-9-24 s.n. Contra Costa San Ramon Comment
  CDA31366  Hemizonia pungens D. G. Kelch 2010-10-29 10 .441 Contra Costa Carquinez Strait; Rankin park just west of Martinez adjacent to parking lot. Comment
  POM181072  Hemizonia pungens subsp. pungens J. T. Howell 1930-9-28 5489 Contra Costa 2 miles from Concord on road to Walnut Creek. Comment
  POM190899  Hemizonia pungens subsp. pungens D. D. Keck 1932-7-7 1736 Contra Costa Just E of Nichols. Comment
  UC901875  Heracleum lanatum L. Constance 1950-6-25 3326 Contra Costa s. rim Wildcat Canyon (Tilden Park); , Tilden Park 365 Comment
  JEPS111742 Image available Hesperevax sparsiflora var. sparsiflora D. G. Kelch 2005-3-25 05 .91 Contra Costa Fernandez Ranch Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak 80 Comment
  JEPS111755  Hesperevax sparsiflora var. sparsiflora D. G. Kelch 2005-5-1 05 .203 Contra Costa Crockett - Edwards Canyon 100 Comment
  RSA151584  Hesperolinon breweri H. K. Sharsmith 1947-6-2 3947 Contra Costa Headwaters of marsh Creek, on shale (?), 0.6 miles from summit of Clayton-Tassajaro-Livermore road, Mount Diablo 305 Comment
  CAS-BOT-BC167433  Hesperolinon breweri John Thomas Howell 1942-7-19 17047 Contra Costa Serpentine ne. of Deer Flat, Mt. Diablo Comment
  SJSU764  Hesperolinon californicum D. Bernsdorf 1942-5-30 Contra Costa Mt Diablo Comment
  UCR168521  Hesperolinon micranthum J. T. Howell 1931-5-12 6472 Contra Costa Central Western; San Francisco Bay area, Nortonville 488 Comment
  JEPS99502  Hesperolinon micranthum Mary L. Bowerman 1978-5-14 Contra Costa Mount Diablo. Old wagon trail to mine on E face of Eagle Peak Comment
  POM203316  Hesperolinon micranthum J. T. Howell 1931-5-12 6472 Contra Costa Nortonville Comment
  UC2028265  Heterocodon rariflorum Barbara Ertter 1999-6-12 16715 Contra Costa West Branch Alamo Creek on south flank of Mount Diablo, along unofficial path running from north spur of Black Hawk Ridge Road to south spur off of Knob Cone Point Road (near powerline). Comment
  CAS-BOT-BC143643  Heteromeles arbutifolia W. W. Carruth 1900-6-1 s.n. Contra Costa E. Oakland Hills Comment
  UC2028022  Heterotheca sessiliflora subsp. echioides Barbara Ertter 1997-9-14 15812 Contra Costa Southwest side of Mount Diablo, Secret Trail at head of Pine Canyon. Comment
  CAS-BOT-BC310908  Heterotheca villosa Niall McCarten; V. I. Dains 1986-1-1 04311257 81 Contra Costa East Contra Costa County. SW corner of Hwy. 4 & Laurel Road near Oakley Comment
  JEPS49731  Heuchera micrantha W. L. Jepson 1922-5-23 9649 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC203382  Hibiscus lasiocarpos var. occidentalis Ira L. Wiggins 1938-8-15 9006 Contra Costa Banks of Old River branch of San Joaquin River at Highway #4 Comment
  UC691430  Hieracium albiflorum Mary L. Bowerman 1933-6-14 2282 Contra Costa crest Inner Black Hills (Mount Diablo); Mount Diablo Comment
  UC2012988  Hirschfeldia incana Barbara Ertter with Tony Morosco 1996-7-27 15041 Contra Costa Mount Diablo State Park, Cardinet Oaks Road at crossing of Donner Creek. Comment
  CAS-BOT-BC325843  Holocarpha heermannii David D. Keck 1933-10-28 2605 Contra Costa 4.5 mi. SE of Martinez on road to Pacheco Comment
  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
  UC2012943  Holocarpha heermannii Barbara Ertter with Lynne Hosley 1992-8-29 11262 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo. Comment
  UC204053  Holocarpha heermannii A. D. E. Elmer Jul 1903 4613 Contra Costa Comment
  SD94549  Holocarpha macradenia David J. Powers 1974-10-6 1001 Contra Costa 100-400 feet east of highway 80 and 100-300 yards south of Appian Way, Pinole Comment
  CAS-BOT-BC320220  Holocarpha macradenia Walter Knight; Irja Knight 1978-8-8 3101 Contra Costa On s.e. corner of Interstate 80 and Appian Way. [1 mi. n. of El Sobrante] Comment
  CAS-BOT-BC320253  Holocarpha obconica David D. Keck 1933-11-2 2621 Contra Costa Deer Valley, 1/2 mi. S. of road to Brentwood Comment
  UC913078  Holocarpha obconica David D. Keck and J. Clausen 1933-10-27 2566 Contra Costa Vasco Road at junction with Byron Road Comment
  NY180099  Holocarpha obconica subsp. autumnalis D. D. Keck 1933-10-7 2567 Contra Costa 1.6 miles W of Byron, 1.4 miles from junction with Vasco Road Comment
  POM298344  Holocarpha obconica subsp. autumnalis D. D. Keck 1933-11-2 2621 Contra Costa Deer Valley, 0.5 mile S of road to Brentwood. Comment
  SEINET7545173  Holocarpha obconica subsp. autumnalis D. D. Keck, J. Clausen 1933-1 2567 Contra Costa 1.6 mi.W. of Byron, 1.4 mi. from jct with Vasco Rd. Comment
  UC1357613  Holocarpha virgata subsp. virgata R. F. Hoover 1965-9-24 9648 Contra Costa foothills w, e of Kellogg Creek Byron Comment
  JEPS112080  Holodiscus discolor D. G. Kelch 2003-8-13 03 .125 Contra Costa Vaca Canyon 165 Comment
  RSA449754  Holodiscus discolor Thekla Mohr 1917-07 3255 Contra Costa Mount Diablo Comment
  SEINET5554708  Hordeum brachyantherum J. Hamai 1985-1 s.n. Contra Costa Russell Reserve. Comment
  JEPS111064  Hordeum brachyantherum subsp. brachyantherum Lee Echols 2003-6-15 s.n. Contra Costa N of Lark Drive in SW portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  UC650561  Hordeum depressum Ira L. Wiggins 1930-4-17 4578 Contra Costa 1/4 m S of Byron Comment
  UC650563  Hordeum depressum Ira L. Wiggins 1930-4-17 4569 Contra Costa E of Mountain House (on road to Byron) Comment
  SEINET10958912  Hordeum hystrix Willis L. Jepson 1910-5-22 Jepson 4053 Contra Costa Very wet places in roadways. Berkeley Hills (Telegraph Canyon). 213 Comment
  CDA32929  Hordeum marinum subsp. gussoneanum D. G. Kelch 2009-5-24 9 .301 Contra Costa Carquinez Strait; S of Ozol, W/SW of Martinez. Comment
  SD211511  Hordeum marinum subsp. gussoneanum Barbara Ertter, Jim Jokerst and Dave Magney 1989-4-5 8121 Contra Costa Southeast Contra Costa County: Alkalai sink West and adjacent to Clifton Court Forebay, circa15 airmiles Southwest of Stockton Comment
  UCD85893  Hordeum marinum subsp. gussoneanum L. S. Smith 1916-5-10 s.n. Contra Costa San Pablo. Grand View Terrace. Comment
  CAS-BOT-BC289559  Hordeum marinum subsp. gussoneanum A. A. Heller 1928-4-15 14498 Contra Costa Near Byron Comment
  CAS-BOT-BC289562  Hordeum marinum subsp. gussoneanum Mary L. Bowerman 1931-5-13 846 Contra Costa Pine Canyon floor slightly more than a mile above the sulphur spring, Mount Diablo Comment
  CAS-BOT-BC284743  Hordeum murinum Walter Knight; Irja Knight 1980-8-26 3802 Contra Costa Growing in Hercules Comment
  SEINET10595762  Hordeum murinum Ball 1975-3-2 BALL 456 Contra Costa In area #4. On beach ca. 30 yds. S of dam on E side of lake. Accompanying species include Bromus rigidus, etc. Soil sandy clay. 32 Comment
  POM301853  Hordeum murinum subsp. glaucum Mary L. Bowerman 1933-5-8 2003 Contra Costa Fossil Ridge, south face, not far from but out of sight of South Gate 290 Comment
  UC691195  Hordeum murinum subsp. leporinum Mary L. Bowerman 1931-4-4 645 Contra Costa West Road about one mi from entrance Mount Diablo (= North Road) Comment
  UC1606349  Horkelia californica subsp. frondosa Barbara Ertter with Dianne Lake 1991-8-18 10677 Contra Costa e;steep N-facing slope above pilings, ne of Bull Valley staging area Crockett; Carquinez Stsrait Regional Shoreline Comment
  UC691096  Horkelia californica subsp. frondosa Joseph Andorfer Ewan 1934-5-20 8926 Contra Costa n. side Mt. Diablo Mt. Diablo; , Russelmann Park Comment
  UC2027724  Horkelia californica var. frondosa Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15510 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  CAS-BOT-BC532052  Horkelia californica var. frondosa Joseph Andorfer Ewan 1934-5-20 8926 Contra Costa Russelmann Park, n. side Mt. Diablo Comment
  RSA611285  Horkelia frondosa Joseph A. Ewan 1934-5-20 8926 Contra Costa Contra Costa County: Russelmann Park, N side Mt. Diablo Comment
  CAS-BOT-BC55476  Hornungia procumbens Alice Eastwood 1914-3-14 s.n. Contra Costa Byron Springs. Comment
  UC1619916  Hydrocotyle verticillata Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10863 Contra Costa just w. Antioch marina (along levee at water's edge, accessed from marina, Dow Wetlands Preserve); Dow Wetlands Preserve Comment
  RSA691938  Hypericum calycinum Barbara Ertter 1993-6-25 11907 Contra Costa Oakland-Berkeley Hills, Grizzly Peak Boulevard ca 1/4 miles south of Tilden miniature steam trains (1/4 miles south of junction of Lomas Cantadas), mixed scrub forest. 488 Comment
  JEPS111686  Hypochaeris glabra D. G. Kelch 2003-4-3 03 .353 Contra Costa South of Cummings Skyway and Crockett Blvd 134 Comment
  CAS-BOT-BC312935  Hypochaeris glabra Mary L. Bowerman 1931-4-4 631 Contra Costa Mount Diablo. Two miles by road from west entrance (North Gate) Comment
  UC691451  Hypochaeris glabra Mary L. Bowerman 1933-5-8 2035 Contra Costa Comment
  RSA762307  Hypochaeris radicata William J. Ferlatte, L. M. Moe 1970-4-27 1252 Contra Costa San Francisco Bay, Red Rock Island. Comment
  RSA0013874  Ibicella lutea G. Thomas Robbins 1959-8-1 4114 Contra Costa Recently completed frontage road just south of Mt. Diablo Blvd. (about 0.5 mi. E of concrete bridge at Charles Hill and about 0.2 mi. W of junction of Hidden Valley Road), about 2 mi. W of Lafayette. 145 Comment
  JEPS77005  Iris douglasiana Robert M. Lloyd 1963-3-17 2134 Contra Costa 0.5 mi e intersection of Grizzly Peak Road and Skyline Drive (on Skyline (across from 7090 Skyline), Huckleberry trail) Comment
  UC1818909  Isoetes howellii Barbara Ertter, Mary Bowerman et al. 1995-5-7 14032 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, in water of pond west of road in grassy flat. Comment
  CAS-BOT-BC324754  Iva axillaris J. W. Congdon 1893-7-30 s.n. Contra Costa Martinez Comment
  UC1205990  Juglans californica var. hindsii Joseph P. Tracy 1933-12-1 13130 Contra Costa along creek between Lafayette and Moraga Comment
  UC691942  Juglans californica var. hindsii Mary L. Bowerman 1936-5-6 3412 Contra Costa Mitchell Canyon floor Mount Diablo (10 feet from stream) 259 Comment
  CAS-BOT-BC102306  Juglans hindsii Barrett Anderson 1987-4-30 3486 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD 125 Comment
  CAS-BOT-BC109898  Juncus Walter Knight; Lawrence Heckard; Bert Johnson 1978-9-28 3276 Contra Costa Sierra Nevada. Browns Island, Alder Point. Comment
  UC691984  Juncus ambiguus Mary L. Bowerman 1930-6-10 292 Contra Costa Mount Diablo, Mineral Spring Mineral Spring; Mount Diablo, Mineral Spring Comment
  UC2028428  Juncus articulatus Barbara Ertter 1996-9-19 15300 Contra Costa Antioch Marina, edge of bay in Dow Marsh lands Comment
  JEPS112453  Juncus balticus D. G. Kelch 2005-3-25 05 .73 Contra Costa Hercules - Carbon Carbon Road near Route 4. 50 Comment
  UC2029189  Juncus balticus Barbara Ertter with Brad Olson et al. 2000-6-2 17308 Contra Costa Brushy Peal Regional Preserve NE of Livermore 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
  JEPS100049  Juncus bufonius A. Langston 2003-6-6 AL 39 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1819015  Juncus bufonius var. bufonius Barbara Ertter, Mary Bowerman et al. 1995-5-7 14038 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
  UC2028304  Juncus bufonius var. bufonius Barbara Ertter, Susan D'Alcamo 1998-6-12 16201 Contra Costa Along Curry Canyon Road just east of Curry Point, south side of Mount Diablo. Comment
  JEPS111067  Juncus bufonius var. congestus 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
  UC2028166  Juncus bufonius var. congestus Barbara Ertter 1998-5-3 16078 Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, near Wall Point, SW-facing bank above road. Comment
  JEPS25120  Juncus occidentalis G. Thomas Robbins 1959-4-18 3986 Contra Costa about 0.5 mi e Pt. San Pablo (overlooking San Pablo Bay); San Pablo Bay 7 Comment
  SD107680  Juncus occidentalis Walter Knight 1980-3-13 3740 Contra Costa Top of low bluffs along southern shore of San Pablo Bay, Point Pinole Regional Park. Comment
  UC2028532  Juncus occidentalis Barbara Ertter 1998-5-3 16035 Contra Costa Above SW of fork of Pine Creek at southwest base of Mount Diablo. Comment
  UC2028546  Juncus occidentalis Barbara Ertter 1998-4-4 15950 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, grasslands along creek south of Indian Valley School. Comment
  SBBG115561  Juncus oxymeris B. Crampton 1950-6-10 590 Contra Costa 1 mi N of Richmond, along Santa Fe Railroad Comment
  SEINET3880605  Juncus oxymeris Kaye H. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4981 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough. SE portion of Bethel Slough.; 0 610 Comment
  UC691911  Juncus patens Mary L. Bowerman 1932-11-26 1680 Contra Costa above South Road (in sight of South Gate); Mount Diablo, South Gate Spring Comment
  UC691913  Juncus patens Mary L. Bowerman 1933-9-9 2436 Contra Costa Frog Pond Mount Diablo Comment
  UC691938  Juncus patens Mary L. Bowerman 1932-11-26 1674 Contra Costa between Corral Spring and Boulevard Spring; Mount Diablo, Patens Springs Comment
  JEPS102917  Juncus phaeocephalus var. paniculatus Barbara Ertter 1998-5-3 16061 Contra Costa wet meadow below Stage Road SE of Turtle Rock Ponds; Mount Diablo 304 Comment
  RSA0027402  Juncus phaeocephalus var. paniculatus Barbara Ertter 1999-7-17 16765 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, Wildcat Creek Trail between Rifle Range Road and boundary with Tilden Regional Park. On east side of road. 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
  UC691976  Juncus xiphioides Mary L. Bowerman 1930-6-28 383 Contra Costa Canyon Nook Picnic Grounds Mount Diablo 670 Comment
  UC691982  Juncus xiphioides Mary L. Bowerman 1932-8-27 1523 Contra Costa s of Turtle Rock; Mount Diablo Comment
  POM300638  Juncus xiphioides Mary L. Bowerman 1931-5-15 865 Contra Costa Lower Silver Spring. Comment
  RSA123532  Juniperus californica R. C. Wilson 1935-3-29 150 Contra Costa 1 mile southwest of Mt. Diablo Comment
  JEPS55998  Keckiella corymbosa L. R. Heckard and R. Bacigalupi 1968-6-27 Contra Costa Bald Ridge Mt. Diablo (along trail to Eagle Peak, ne of Deer Flat) 670 Comment
  UC1795838  Kickxia elatine Barbara Ertter 1995-9-30 14525 Contra Costa North bank of Cerrito Creek at end of Yosemite Avenue in El Cerrito, foot of Albany Hill; stonework bank at edge of overgrown sluggish creek. Comment
  POM257060  Koeleria macrantha Virginia Long 1933-6-14 223 a Contra Costa Mt Diablo; On top of grassy ridge between Curry-Cave trail canyon and W. fork Comment
  CAS-BOT-BC273617  Koeleria pyramidata Virginia E. Long 1933-6-14 223 a Contra Costa Mt. Diablo. Between Curry-Cave trail canyon and W. fork 457 Comment
  RSA74883  Lactuca serriola Elroy Robinson 1935-9-14 s.n. Contra Costa Martinez Comment
  UC691780  Lactuca serriola Mary L. Bowerman 1932-9-24 1591 Contra Costa ridge running w from Twin Peaks; Mount Diablo 335 Comment
  CAS-BOT-BC340538  Lactuca serriola Walter Knight; Joanne Dean 1978-8-14 3165 Contra Costa Browns Island Comment
  CAS-BOT-BC340541  Lactuca serriola John Thomas Howell; Gordon H. True 1972-7-29 s.n. Contra Costa On Byron Hot Springs Road southeast of Byron Comment
  JEPS3931  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
  CDA7515  Lactuca virosa J. T. Howell 1943-8-22 19310 Contra Costa Near head of San Leandro Creek Canyon. Comment
  UC2029078  Lactuca virosa Barbara Ertter 2000-7-16 17402 Contra Costa Lower Pine Creek in Diablo Foothills Regional Park. Comment
  UCD125108  Lamium amplexicaule Terri Williamson 1990-4-15 9 Contra Costa 212 Poshard St. Pleasant Hill. 12 Comment
  CAS-BOT-BC412727  Lastarriaea coriacea Dr. A. Kellogg; W. G. W. Harford 1868-1-1 865 Contra Costa Antioch Comment
  CAS-BOT-BC337975  Lasthenia californica Alice Eastwood 1921-4-18 10277 Contra Costa Antioch Comment
  CHSC23361  Lasthenia californica Willis Ball 1975-4-19 523 Contra Costa Contra Loma Regional Park. In area #1. Ca. 150 yds sw of main parking lot at the s end of the lake. 38 Comment
  RSA721745  Lasthenia californica Barbara Ertter, Mary L. Bowerman 1995-5-7 14060 Contra Costa Three-Springs Trail on NE side of Mt. Diablo SE of Clayton. Comment
  UC34166  Lasthenia californica subsp. bakeri Harley P. Chandler 1901-4-5 994 A Contra Costa Mt. Diablo Comment
  JEPS10005  Lasthenia californica subsp. californica W. L. Jepson 1917-4-14 6864 Contra Costa Oakland Hills Comment
Read comments Nov 18 2007
  JEPS10382  Lasthenia californica subsp. californica W. L. Jepson 1931-4-5 15718 Contra Costa adobe flat in hills about Nortonville 457 Comment
  UC62991  Lasthenia californica subsp. californica H. M. Hall 1901-4-5 1749 Contra Costa Mt. Diablo Region of San Francisco Bay Comment
  CAS-BOT-BC324463  Lasthenia conjugens Milo S. Baker 1946-4-20 11330 Contra Costa Near Concord Comment
  CAS-BOT-BC324480  Lasthenia ferrisiae Alice Eastwood 1914-3-14 3761 Contra Costa Byron Springs Comment
  POM11966  Lasthenia ferrisiae Katherine Brandegee s.n. Contra Costa Byron Hot Springs. Comment
  CAS-BOT-BC353334  Lasthenia fremontii K. Curran April (Year not stated). s.n. Contra Costa Suisun. Comment
  RSA523884  Lasthenia fremontii Barbara Ertter, Jim Jokerst, D. Magney 1989-4-5 8136 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  JEPS35405  Lasthenia glabrata subsp. glabrata W. L. Jepson 1925-4-26 10686 Contra Costa Black Hills Mt. Diablo, Black Hills Comment
  CAS-BOT-BC367585  Lasthenia microglossa Alice Eastwood; John Thomas Howell 1936-4-19 2139 Contra Costa Nortonville Comment
  UC697156  Lasthenia microglossa Mary L. Bowerman 1936-4-23 3405 Contra Costa Mitchell-Pine Divide, northern most point Mount Diablo 838 Comment
  UC89980  Lasthenia microglossa unknown 1890-4-22 Contra Costa near Antioch Comment
  JEPS10875  Lasthenia platycarpha Edw. L. Greene 1889-3-23 Contra Costa Byron Comment
  UC1314947  Lasthenia platycarpha R. F. Hoover 1967-4-28 10505 Contra Costa Byron Hot Springs Comment
  CAS-BOT-BC213350  Lathyrus jepsonii subsp. californicus Volney Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley Comment
  CDA27128  Lathyrus jepsonii subsp. californicus D. G. Kelch 2007-4-29 7 .204 Contra Costa Carquinez Strait; Richmond; Chevy s Hill N. Hilltop Dr. Comment
  RSA720812  Lathyrus jepsonii subsp. californicus Barbara J. Ertter, Dale Sanders, Dan Norris 1994-3-26 12331 Contra Costa Peyton Hill east of I-680 east of Martinez, south of Waterfront Road, southeast side of hill. 30 Comment
  JEPS78609  Lathyrus jepsonii var. jepsonii Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3301 Contra Costa Browns Island, South Landing Browns Island; , South Landing Comment
  UCD106487  Lathyrus vestitus P. B. Kennedy 1925-4-26 s.n. Contra Costa Banks above road to Sycamore Canon, Mt. Diablo. Comment
  JEPS112342  Lathyrus vestitus var. vestitus Dean G. Kelch and Andrew G. Murdock 2004-4-25 04 .120 Contra Costa Martinez - West: Ozol Rock and Scenic Drive; County: contra Costa; Hill Southwest of large cottonwood. West of Martinez at gated end of Scenic Dr. Comment
  JEPS55360  Lathyrus vestitus var. vestitus W. L. Jepson 1922-7-9 9733 Contra Costa El Cerrito, Richmond Comment
  JEPS65195  Lathyrus vestitus var. vestitus L. R. Heckard 1971-4-15 2472 Contra Costa e of Mt. Diablo (along Morgan Territory road, 7 mi n of tis intersection with Manning road) 487 Comment
  UC85314  Lathyrus vestitus var. vestitus C. F. Baker 1903-4-28 2944 Contra Costa Mitchell Canyon Mt. Diablo Comment
  UC89157  Layia chrysanthemoides T. S. Brandegee 1885-5-1 Contra Costa Antioch Comment
  CAS-BOT-BC323908  Layia chrysanthemoides Brandegee no date on sheet s.n. Contra Costa Antioch Comment
  POM53189  Layia chrysanthemoides C. F. Baker 1903-4-27 2903 Contra Costa Byron. Comment
  JEPS13502  Layia glandulosa Robert F. Hoover 1935-3-10 315 Contra Costa Antioch Comment
  JEPS40029  Layia glandulosa H. L. Mason 1932-3-20 Contra Costa Antioch Comment
  UC30623  Layia glandulosa unknown 1900-4-5 Contra Costa Oakley Comment
  UC614822  Layia glandulosa Beryl O. Schreiber 1932-3-27 161 Contra Costa Comment
  RSA394722  Layia glandulosa subsp. glandulosa Annetta Carter 1933-4-23 300 Contra Costa Above the San Joaquin River, between Antioch Bridge and Antioch. Comment
  RSA102175  Layia heterotricha M. K. Curran 1886-05 s.n. Contra Costa Near Antioch. Comment
  UC89175  Layia hieracioides Brandegee May 1883 Contra Costa Judsonville Comment
  CAS-BOT-BC370666  Layia platyglossa H. M. Hall 1901-4-5 1750 Contra Costa Mt. Diablo near summit Comment
  POM202803  Layia platyglossa subsp. platyglossa L. S. Rose 1933-4-17 33093 Contra Costa Antioch Comment
  RSA721283  Layia platyglossa subsp. platyglossa Barbara Ertter, Brad Olson, Dianne Lake 1996-4-14 14589 Contra Costa North Peak of Mt. Diablo 1098 Comment
  SACT001393  Leersia oryzoides Malcolm Nobs 1948-9-23 Contra Costa Growing in shallow water along slough bank, just coming to bloom. 7 miles south Kingston. Comment
  JEPS99486  Lemna minor Mary Bowerman 1995-6-8 Contra Costa Mount Diablo, Pine Pond. Comment
  CAS-BOT-BC534639  Lemna minuta Ira L. Wiggins 1930-4-18 4607 Contra Costa Jersey Island Comment
  UC2028592  Lemna minuta Barbara Ertter with Dan Norris 2001-4-15 17606 Contra Costa Diablo Foothills Regional Park, Alamo Trail from Livorna Staging Area. Comment
  JEPS63250  Lepechinia calycina W. L. Jepson 1920-8-12 9077 Contra Costa Mount Diablo, towards summit Mount Diablo Comment
  JEPS78824  Lepechinia calycina Edward Lee 1936-5-24 2166 Contra Costa 10 mi from Marsh Creek Road (Morgan Territory); Morgan Territory Comment
  CAS-BOT-BC215740  Lepechinia calycina Mary L. Bowerman 1930-6-10 317 Contra Costa Meridian Peak, roadside little below the summit, Mt. Diablo Comment
  CAS-BOT-BC89844  Lepidium Bauer 1857-5-1 s.n. Contra Costa Mond Diabola. Comment
  CAS-BOT-BC88702  Lepidium acutidens Alice Eastwood 1914-3-14 3771 Contra Costa Byron Springs. Comment
  CAS-BOT-BC88704  Lepidium acutidens Volney Rattan 1879-1-1 s.n. Contra Costa Antioch. Comment
  CDA43402  Lepidium acutidens Michael Pitcairn & Dean Kelch 2015-3-6 s.n. Contra Costa South end of the Byron Airport. Comment
  CHSC67911  Lepidium dictyotum var. acutidens James D. Jokerst 1989-3-29 3069 Contra Costa 0.25 mi S of Byron Hot Springs NE of Livermore. Comment
  UCD115342  Lepidium didymum Collector unknown Date unknown s.n. Contra Costa Jersey Island. Comment
  CAS-BOT-BC89715  Lepidium latifolium Walter Knight; Joanne Dean 1978-8-14 3170 Contra Costa Brown Island. Comment
  NY76535  Lepidium latifolium B. J. Ertter 1991-5-12 9810 Contra Costa Point Isabel Regional Shoreline in southwest corner of El Cerrito, on San Francisco Bay Comment
  UC1949386  Lepidium latifolium Barbara Ertter with CNPS 1990-9-16 9649 Contra Costa SE side of Holland Tract NE of Brentwood Comment
  UC10645  Lepidium latipes F. T. Bioletti 1892-1 Contra Costa Comment
  UC2070568  Lepidium latipes Barbara Ertter with David Gowen, J. Ginochio, M. Park, S. Matson, A. Moore, S. D'Alcamo, J. Greenhouse, K. Kersh and J. Gawthrup 2005-5-8 18572 Contra Costa Long Ridge on west flank of Mount Diablo, near springs and pond on Ginochio property near park boundary. Comment
  UC1543052  Lepidium nitidum Donald G. Nelson 1937-3-30 472 Contra Costa s of Byron (on road to Tracy; along railroad tracks paralleling the highway) 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
  RSA537663  Lepidium nitidum var. oreganum Barbara Ertter, Jim Jokerst, D. Magney 1989-4-5 8127 Contra Costa SE Contra Costa: alkali sink W and adjacent to Clifton Court Forebay, ca 15 air miles SW of Stockton 0 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
  UCD63958  Leptochloa fusca subsp. uninervia Beecher Crampton 1959-10-19 5467 Contra Costa 4 miles south of Brentwood, along Vasco Road, just north of its junction with Mount Diablo Road. Comment
  UCD64056  Leptochloa fusca subsp. uninervia Chandler Jensen 1957-11-7 Contra Costa Vasco road, about 5 mi. south of Brentwood. Comment
  UC2027775  Leptosiphon ciliatus Barbara Ertter with Holly Forbes 1997-4-20 15565 Contra Costa North base of Mount Diablo at NE base of Eagle Ridge. Comment
  JEPS100184  Lessingia glandulifera var. glandulifera David Gowen 2003-7-6 s. n. Contra Costa Lime Ridge Open Space; Ridge trail in the N section of the park and S of the water tank Comment
  UCD134062  Lessingia glandulifera var. glandulifera Ann F. Johnson 1978-5-26 AN- 21 Contra Costa San Joaquin River in front of east PG and E tower, Antioch Dunes. Comment
  UC1094039  Lessingia pectinata var. tenuipes Lewis S. Rose 1955-10-17 55185 Contra Costa Antioch Comment
  UC1287418  Lessingia pectinata var. tenuipes Willard Spence 1960-9-2 609 Contra Costa 0.2 mi e of Antioch Boat Ramp; Antioch Comment
  UC2029023  Leucanthemum vulgare Barbara Ertter 1999-7-17 16761 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, Rifle Range Road. Comment
  UC1051216  Leucospermum nutans N. Floy Bracelin 1945-5-6 2968 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS22090  Leymus X multiflorus G. Thomas Robbins 1958-7-19 3902 Contra Costa about 1/2 mi e Pt. San Pablo (meadow overlooking San Pablo Bay); Richmond 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
  POM365328  Leymus condensatus A. A. Beetle 1941-6-24 1751 Contra Costa Pt. Richmond on San Francisco Bay Comment
  CAS-BOT-BC272214  Leymus triticoides R. E. Frenkel 1964-9-19 848 Contra Costa On Morgan Territore Road, 0.2 mile south of summit 637 Comment
  CAS-BOT-BC272218  Leymus triticoides John Thomas Howell; Gordon H. True 1972-6-29 48928 Contra Costa Byron Hot Springs Road southeast of Byron Comment
  CAS-BOT-BC211110  Lilaeopsis masonii W. Knight; I. Knight 1977-5-22 s.n. Contra Costa Antioch Dunes Comment
  CDA7913  Lilaeopsis masonii D. G. Kelch, A. G. Murdock 2005-5-2 5 .297 Contra Costa Carquinez Strait; Glen Cove Shore. Comment
  CDA9513  Lilaeopsis masonii D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .24 Contra Costa CA Delta; Along Clifton Court Near Clifton Court Forebay. Comment
  JEPS19593  Limnanthes douglasii H. M. Evans Apr. 1901 Contra Costa Mt. Diablo Comment
  UC17906  Limnanthes douglasii subsp. douglasii H. M. Hall 1901-3-21 1690 Contra Costa Lafayette Region of the San Francisco Bay 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
  SBBG117351  Limonium californicum B. Crampton 1950-8-5 632 Contra Costa San Pablo Canal, NW of Richmond Comment
  CDA39056  Limonium sinuatum D. G. Kelch 2011-6-12 11 .585-B Contra Costa Carquinez Strait; Above Point Costa. 0 Comment
  UC880306  Linanthus androsaceus Lewis S. Rose 1940-4-30 40253 Contra Costa 8 mi se Clayton; Marsh Creek 30 Comment
  UC2028267  Linanthus androsaceus Barbara Ertter 1999-6-12 16712 Contra Costa Black Hawk Ridge road on south side of Mount Diablo, just south of confluence of NE and E forks of Sycamore Creek. Comment
  JEPS112006  Linanthus bicolor D. G. Kelch 2005-4-15 05 .131 Contra Costa Rodeo Creek East-West canyon feeding into Rodeo Creek 120 Comment
  UC1607629  Linanthus bicolor Barbara Ertter, Lynne Hosley 1993-4-17 11509 Contra Costa ca 10 air mi n Livermore (hills in lee of Mt. Diablo, e side of open meadow along Blue Oak trail); Morgan Territory 609 Comment
  UC691639  Linanthus bicolor Mary L. Bowerman 1931-3-29 625 Contra Costa n side, 500 ft from top Cave Point; Mount Diablo Comment
  JEPS58275  Linanthus bolanderi Mary L. Bowerman 1935-4-26 2905 Contra Costa w of Indian Ceremonial Spring; Mount Diablo 1005 Comment
  SEINET8729347 Image available Linanthus liniflorus Herbert L. Mason 1952-1 14265 Contra Costa 3.5 miles south of Eyron Comment
  JEPS123332  Linanthus parviflorus David Gowen with Chris Thayer 2010-4-30 1090 Contra Costa North of Briones Reservoir. Rocky area on hill above Oursan Trail just west of its junction with Hampton Trail. Comment
  JEPS112262  Lithophragma affine A. G. Murdock 2004-4-30 265 Contra Costa Vaca Canyon Comment
  SEINET5557311  Lithophragma affine H. S. Gentry 1931-1 47 Contra Costa Collected near Buckle Point Mt. Diablo. Comment
  CAS-BOT-BC435625  Lithophragma heterophyllum Mary L. Bowerman 1931-3-21 585 Contra Costa Sycamore Canyon Comment
  CDA25418  Lithophragma heterophyllum A. G. Murdock, D. G. Kelch 2004-4-3 240 Contra Costa Vaca Canyon. Comment
  CDA945  Lithophragma heterophyllum D. G. Kelch 2006-5-4 6 .124 Contra Costa Carquinez Strait; Vaca Canyon, on North facing road cut/bank along Alhambra Valley Road. Comment
  JEPS75510  Lithophragma heterophyllum P. F. Yorks 1974-3-22 117 Contra Costa N of Briones Reservoir (ca. 1.8 km S of Bear Creek Road on Hampton Road); Hampton Road Natural Reserve Comment
  UC2028077  Lithophragma heterophyllum Barbara Ertter, Tony Morosco 1998-4-12 15997 Contra Costa Base of Mount Olympia on north side of Mount Diablo, talus above quarry NE of Olympia Trail. Comment
  UC1050466  Lobelia laxiflora N. Floy Bracelin 1941-5-4 1262 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC88259  Logfia filaginoides Mrs. K. Curran May 1886 Contra Costa Antioch Comment
  CAS-BOT-BC342346  Logfia gallica H. L. Mason 1928-4-26 4386 Contra Costa Berkeley-Oakland Hills Comment
  UC38790  Lolium multiflorum J. Burtt Davy 1897-9-9 4078 Contra Costa Stege Comment
  UC606746  Lolium perenne Edward Lee 1936-4-19 1973 Contra Costa Red Rock , se shore Red Rock (San Francisco Bay) Comment
  RSA762301  Lolium perenne subsp. multiflorum William J. Ferlatte, L. M. Moe 1970-4-27 1221 Contra Costa San Francisco Bay, Red Rock Island. Comment
  POM300593  Lolium temulentum Mary L. Bowerman 1933-5-17 2096 Contra Costa Branch of Curry Canyon due south of Olafsons' barn. Comment
  UC659030  Lomatium caruifolium var. caruifolium Mildred E. Mathias 1937-4-11 1165 Contra Costa 3 mi. s. Byron Comment
  UC691420  Lomatium dasycarpum subsp. dasycarpum Mary L. Bowerman 1932-2-28 1095 Contra Costa W of Blackberry Spring; Mount Diablo Comment
  UC2027801  Lomatium macrocarpum Barbara Ertter with Holly Forbes 1997-4-20 15558 Contra Costa North side of Mount Diablo, north end of Eagle Peak Ridge on Mitchell Rock Trail between Mitchell Rock and Twin Peaks. Comment
  UCSB4606  Lomatium nudicaule Keator, Glenn 1959-7-1 Contra Costa 1/4 mile above Laurel camp on Mt. Diablo Comment
  JEPS13006  Lomatium utriculatum Rimo Bacigalupi with G. T. Robbins and Keith Harrison 1955-5-6 5063 Contra Costa in hills opposite;Hilltop W of Arlington Avenue, opposite Mira Vista Country Club El Cerrito 198 Comment
  UC650409  Lonicera involucrata var. ledebourii Ira L. Wiggins 1930-4-18 4594 Contra Costa levee on e end Jersey Island 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
  JEPS99523  Lonicera subspicata var. denudata Mary L. Bowerman 1975-6-7 Contra Costa Mount Diablo. By Big Spring fire rd. E of Murchio Gap. Comment
  UC1051339  Lophospermum erubescens N. Floy Bracelin 1941-6-15 1389 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  UC692569  Lotus crassifolius var. crassifolius Mary L. Bowerman 1931-5-16 862 Contra Costa Meridian Peak summit Mount Diablo Comment
  UC775175  Lotus denticulatus Herbert L. Mason 1945-5-31 Contra Costa nw of St. Mary's College; Cashion Canyon Comment
  JEPS48906  Lotus junceus W. L. Jepson 1945-3-11 27554 Contra Costa Moraga Ridge Comment
  JEPS55504  Lotus junceus A. M. Ottley 1920-6-5 777 Contra Costa Moraga Ridge Comment
  UC692526  Lotus micranthus Mary L. Bowerman 1931-3-29 616 Contra Costa East Cave Point Ridge Mount Diablo Comment
  UC692270  Lotus scoparius Mary L. Bowerman 1932-9-24 1589 Contra Costa ridge running w from Twin Peaks; Mount Diablo 335 Comment
  UC1795732  Lotus scoparius var. scoparius Barbara Ertter, Brad Olson 1994-5-7 12761 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  RSA181412  Lotus strigosus James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  PASA1117  Lotus subpinnatus Annetta Carter 1929-3-31 Contra Costa Near Clayton Comment
  UC1051078  Luculia intermedia N. Floy Bracelin 1944-10-29 2821 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC178931  Lupinus Katharine Brandegee Contra Costa Walnut Creek Comment
  JEPS64909  Lupinus albifrons W. L. Jepson 1931-4-5 15724 Contra Costa Oakley part of Antioch sand-dune formation, Oakley 18 Comment
  CAS-BOT-BC201365  Lupinus albifrons var. albifrons James McMurphy 1909-5-20 s.n. Contra Costa Antioch Comment
  JEPS112355  Lupinus albifrons var. albifrons Dean G. Kelch and Andrew G. Murdock 2004-3-12 04 .019 Contra Costa Pinole Valley, County: Contra Costa; Hillside and canyon above Wright Road. Off of Pinole Valley Road. Contra Coasta County, CA. Comment
  CAS-BOT-BC201372  Lupinus albifrons var. albifrons Paul F. Covel 1938-6-26 s.n. Contra Costa Las Trampas Canyon - behind St. Mary's Comment
  RSA29244  Lupinus albifrons var. albifrons Joseph A. Ewan 1934-3-10 8645 Contra Costa 2 mi. below Orinda Road bridge, Wildcat Canyon. Comment
  UC1607626  Lupinus albifrons var. collinus Barbara Ertter 1991-5-5 9772 Contra Costa halfway up E ridge Rose Hill (above cemetary, Black Diamond Mines Regional Preserve s of Pittsburg); Black Diamond Mines Regional Preserve, Rose Hill 365 Comment
  UC1076228  Lupinus bicolor Herbert L. Mason 1931-4-5 5821 Contra Costa Antioch sandhills Comment
  UC1197281  Lupinus bicolor J. P. Tracy 1900-3-24 624 Contra Costa Dry Hill Point Richmond (Point Richmond); Region about San Francisco Bay, Point Richmond 15 Comment
  UC15930  Lupinus bicolor W. H. Brewer 1862-5-23 1149 Contra Costa se Monte Diablo; se of Monte Diablo Comment
  UC614847  Lupinus bicolor Beryl O. Schreiber 1932-3-27 164 Contra Costa near Antioch; near Antioch Comment
  SEINET10903824  Lupinus bicolor subsp. pipersmithii Charles Piper Smith 1922-4-14 Smith 3482 Contra Costa Antioch - santa fe - east sanddunes. Comment
  RSA203627  Lupinus bicolor subsp. tridentatus J. T. Howell 1933-5-14 11250 Contra Costa Hills east of St. Marys college Comment
  RSA32778  Lupinus bicolor subsp. tridentatus A. A. Heller 1938-4-9 15019 Contra Costa Near the west end of the Antioch bridge. Comment
  UCD107012  Lupinus chamissonis Beecher Crampton 1973-3-26 8907 Contra Costa 2 miles S.E. of Oakley. Comment
  SEINET10485248  Lupinus densiflorus var. menziesii Walker 1911-7-8 Walker 2526 Contra Costa Near point isabel, e shore of san francisco bay. Growing in sand banks along Railway. Fls bright yellow. Comment
  UC2070453  Lupinus formosus Barbara Ertter 2004-6-27 18377 Contra Costa Kensington, ridge overlooking Wildcat Canyon behind Kensington Hilltop School. Comment
  UC1613951  Lupinus formosus var. formosus Charles M. Belshaw 1935-6-24 1033 Contra Costa Sobrante Hills Comment
  UC15918  Lupinus luteolus F. P. Nutting 1893-6-29 Contra Costa Fish Ranch Comment
  JEPS112376  Lupinus microcarpus var. densiflorus Dean G. Kelch and Andrew G. Murdock 2003-6-2 88 Contra Costa Crockett - Eckley; County: Contra Costa; East of pier at base of cliff. Comment
  SEINET8056959  Lupinus microcarpus var. densiflorus H. A. Walker 1911-7-8 2526 Contra Costa Near Point Isabel, east shore of San Francisco Bay Comment
  JEPS25140  Lupinus microcarpus var. microcarpus G. Thomas Robbins 1959-5-16 4010 Contra Costa just n Pt. Orient, Richmond (western base of Potrero Hills, overlooking San Francisco Bay); overlooking San Francisco Bay, Potrero Hills, n of Pt. Orien Comment
  UC201025  Lupinus microcarpus var. microcarpus Katharine Brandegee 1918-6-16 Contra Costa El Dorado St. Richmond Annex (Richmond Annex); , El Dorado St. Comment
  UC201035  Lupinus microcarpus var. microcarpus Katharine Brandegee 1918-6 Contra Costa Richmond Annex Comment
  UC126998  Lupinus nanus J. Burtt Davy 1897-4-17 Contra Costa Point Isabel Comment
  RSA0027718  Lupinus nanus Barbara Ertter, R. K. Brummitt 1998-5-13 16132 Contra Costa Summit Road on Mount Diablo, base of rock outcrop/roadcut above Juniper Camp. Comment
  UC2028071  Lupinus nanus Barbara Ertter, Tony Morosco 1998-4-12 16002 a Contra Costa Base of Mount Olympia on north side of Mount Diablo, NE of Olympia Trail. Comment
  UC2028120  Lupinus nanus Barbara Ertter with Richard K. Brummitt 1998-5-6 16089 Contra Costa Lower Donner Canyon Road on north base of Mount Diablo, ca 1/2 miles south of Donner cabin site. Comment
  UCD109246  Lupinus nanus L. S. Smith 1916-5-10 s.n. Contra Costa Grand View Terrace - m. Richmond. Comment
  RSA120097  Lupinus nanus subsp. nanus L. D. Christenson 1935-4-11 78 Contra Costa East of Mt. Diablo. Comment
  UC2028075  Lupinus pachylobus Barbara Ertter, Tony Morosco 1998-4-12 16002 Contra Costa Base of Mount Olympia on north side of Mount Diablo, NE of Olympia Trail. Comment
  UCD109334  Lupinus pachylobus A. A. Heller 1913-12-9 11150 Contra Costa hills eight miles north of Oroville near the western base of Table mountain. The type was collected by Greene on the 'Briones Hills, east of San Pablo Creek, Contra Costa County, California. Comment
  CHSC75089  Lupinus polycarpus Roger Thomas 1987-4-21 5 Contra Costa 3300 block of Johnson Rd. Lafayette. 152 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
  CDA37273  Lupinus succulentus D. G. Kelch 2011-3-31 11 .078 Contra Costa Carquinez Region; Richmond; Hilltop Lake Park. Comment
  UC2028039  Luzula comosa Barbara Ertter 1998-3-7 15930 Contra Costa Dan Cook Canyon on southwest side of Mount Diablo. Comment
  UC2028401  Luzula comosa Barbara Ertter with Dan Norris 1998-6-18 16225 Contra Costa Lower Devil's Slide trail falong W Fork Sycamore Creek (Madrone Canyon), south side of Mount Diablo, along path in woods Comment
  UC2028483  Luzula comosa Barbara Ertter 1998-5-3 16040 Contra Costa SW fork of Pine Creek between Pine Ridge and Wall Point Ridge, southwest base of Mount Diablo Comment
  JEPS48958  Luzula macrantha Elsa Kraeger 1926-3-7 Contra Costa South slope Mount Diablo Comment
  UC2028361  Lythrum hyssopifolia Barbara Ertter with Tony Morosco 1998-7-11 16364 Contra Costa North base of Mount Diablo, margin of small pond on north side of Bruce Lee Road east of Mitchell Canyon staging area Comment
  POM301049  Madia elegans subsp. elegans Mary L. Bowerman 1936-9-10 3542 Contra Costa Mount Diablo: Donner Canyon 335 Comment
  CDA29558  Madia gracilis D. G. Kelch, Troy MacGregor 2009-5-1 9 .27 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  UC697160  Madia gracilis Mary L. Bowerman 1933-5-8 2018 Contra Costa near crest Fossil Ridge (on n side by side road); Mount Diablo Comment
  POM267781  Madia gracilis subsp. gracilis D. D. Keck 1941-6-5 5309 Contra Costa Berkeley Hills, Fish Creek Road 1/4 mile W of E portal of Broadway Tunnel. 335 Comment
  JEPS6745  Madia radiata R. F. Hoover 1941-4-12 4836 Contra Costa 1 mi n Lone Tree Valley Comment
Read comments Aug 21 2017
  JEPS7400  Madia radiata R. F. Hoover 1938-3-25 2898 Contra Costa Lone Tree Valley Comment
  UC112946  Madia radiata Mrs. K. Brandegee 1908-4-9 50 Contra Costa near Antioch Comment
  JEPS21968  Madia sativa G. Thomas Robbins with S. Galen Smith 1958-6-2 3848 B Contra Costa along Franklin Canyon Road (State Hwy 4) south and above Refugio Valley (just e of Hercules city boundary, around edge of earth dump on grassy slope) 18 Comment
  UC1069903  Madia sativa H. S. Yates 1934-9-2 4076 Contra Costa 1 1/2 mi nw Orinda; Concord Quad. Comment
  UC2027972  Madia sativa Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15664 Contra Costa Point Richmond, crest of road. Comment
  UCD134341  Madia sativa G. Thomas Robbins; S. Galen Smith 1958-6-2 3848 B Contra Costa Along Franklin Canyon Road (State Highway 4) south and above Refugio Valley just east of Hercules city boundary. 18 Comment
  RSA577468  Maianthemum racemosum subsp. amplexicaule Joseph A. Ewan 1934-6-8 8755 Contra Costa South Fork Marsh Creek, Mt. Diablo 305 Comment
  UC2029067  Maianthemum stellatum Barbara Ertter 2000-7-29 17437 Contra Costa Donner Basin on north side of Mount Diablo, Middle Trail below Falls Trail junction, at crossing of W Fork Donner Creek, with Berberis, shaded, surface water. Comment
  UC961415  Malacothamnus fremontii John Thomas Howell and T. H. Kearney 1950-7-5 26635 Contra Costa Nortonville Comment
  CAS-BOT-BC204090  Malacothamnus hallii Volney Rattan 1886-6-14 s.n. Contra Costa Mouth of Pine Canon [Canyon]. Foot of Mount Diablo Comment
  CAS-BOT-BC345370  Malacothrix clevelandii Brandegee No date on label s.n. Contra Costa Antioch Comment
  RSA721597  Malacothrix clevelandii Mary L. Bowerman 1978-5-14 s.n. Contra Costa Mount Diablo; old wagon trail to mine on east face of Eagle Peak Comment
  CAS-BOT-BC347389  Malacothrix floccifera R. Bacigalupi 1927-5-13 1573 Contra Costa Summit Mt. Diablo Comment
  CHSC33984  Malva nicaeensis Willis Ball 1975-4-19 525 Contra Costa Contra Loma Regional Park. In area #1 ca. 40 yds sw of restroom facility at s end of reservoir. In picnic area. 36 Comment
  UC692622  Malva nicaeensis Mary L. Bowerman 1938-5-25 3631 Contra Costa Mount Diablo, North Road at Arroyo del Cerro (place where bank joins first bottom 7 ft from stream) Arroyo del Cerro; Mount Diablo, Arroyo del Cerro 1097 Comment
  UC2027959  Malva nicaeensis Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15667 Contra Costa Martinez Regional Shoreline, south edge of Carquinez Strait. Comment
  RSA721201  Malva parviflora Barbara Ertter, Mary L. Bowerman 1995-6-11 14248 Contra Costa Shell Ridge Recreation Area southwest of Walnut Creek, at west base Mt.Diablo; near Indian Valley School entrance. 91 Comment
  RSA0004204  Malvastrum hallii H. M. Hall, F. M. Essig 1916-5-30 10131 Contra Costa Mt. Diablo, westerly side north of Pine Canon. 275 Comment
  CDA35747  Malvella leprosa D. G. Kelch, Andrew G. Murdock 2004-7-9 4 .306 Contra Costa Carquinez Strait; Alhambra Creek, Martinez, near Muir gravesite, Arroyo del Hambre. Comment
  RSA0042211  Malvella leprosa D. G. Kelch 2006-7-14 06 .332 Contra Costa Between Rte 4 and Carbon Rd. E Rodeo. 24 Comment
  OBI12334  Malvella leprosa Robert F. Hoover 1966-8-31 9944 Contra Costa 1.5 mi E of Danville on Tassajara rd Comment
  UC1005844  Marah fabacea N. Floy Bracelin 1945-4-14 2843 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  HSC7016  Marah fabacea Greg Bos 1963-3-9 29 Contra Costa Pinole Valley Rd., SE of Pinole 61 Comment
  CHSC46930  Marah oregana R. A. Schlising 1964-4-2 2697 Contra Costa Berkeley/Oakland Hills. Comment
  CHSC116621  Matricaria discoidea Lowell Ahart; Josephine Guardino 2016-4-19 20766 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the sides of the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  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
  UC2036958 Image available Meconella californica Mary L. Bowerman 1946-3-10 4084 Contra Costa Northerly face of Shell Ridge. East of Brown's house (where [m.c.?] lived). Comment
  CDA22510  Medicago arabica D. G. Kelch, D. A. Weinstein 2008-4-25 8 .076 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
  CDA29088  Medicago arabica D. G. Kelch 2006-5-7 6 .15 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  CHSC116603  Medicago polymorpha var. brevispina Lowell Ahart; Josephine Guardino 2016-4-19 20763 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. 1.8 miles (air) northwest of LosVaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  CAS-BOT-BC271216  Melica californica L. R. Abrams 1921-5-25 8065 Contra Costa On road to summit, Mt. Diablo Comment
  UC691168  Melica californica Mary L. Bowerman 1933-4-26 1934 Contra Costa Perkins Canyon Mount Diablo (branch between the main e ridge of North Peak and the ridge to its south) 487 Comment
  UC691173  Melica californica Mary L. Bowerman 1933-6-3 2236 Contra Costa Ransom Point trail Mount Diablo (Mount Diablo) Comment
  UC692467  Melica californica Mary L. Bowerman 1935-4-22 2883 Contra Costa ridge w Pioneer Road (w of Stage Road) (e-face of ridge); Mount Diablo 853 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
  UC585495  Melica imperfecta Virginia E. Long 1933-6-14 221 a Contra Costa sse along first w fork Curry Creek trail; Mt. Diablo 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
  UCD87871  Melica imperfecta P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. 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
  UC691167  Melica torreyana Mary L. Bowerman 1935-5-8 2972 Contra Costa Muir Area 1036 Comment
  CAS-BOT-BC262508  Melica torreyana Mary L. Bowerman 1935-5-18 3024 Contra Costa Mount Diablo. Northwest-facing slope across the road from, and a little east of, the parking area: Woodland 1066 Comment
  JEPS128777  Melilotus albus Kevin Hintsa 1999-8-17 Contra Costa Mount Diablo State Park, Pine Canyon in flats adjacent to willow forest. 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
  UC1584858  Mentha aquatica Jerry Powell 1987-9-15 1523 Contra Costa Point Molate; marshy area at creek mouth to beach Comment
  UC2028956  Mentha pulegium Barbara Ertter 2000-7-16 17385 Contra Costa Lower Pine Creek in Diablo Foothills Regional Park. Comment
  POM89173  Mentzelia affinis Katherine Brandegee s.n. Contra Costa Byron Hot Springs. Comment
  CAS-BOT-BC348365  Micropus californicus var. californicus Alice Eastwood 1915-5-30 4470 Contra Costa Mt. Diablo Comment
  UC1795729  Micropus californicus var. californicus Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14223 Contra Costa Mt. Diablo southeast of Walnut Creek, north-facing slope north of Curry Point, grassy semishade at edge of oak woodland. 518 Comment
  UC1795792  Micropus californicus var. californicus Barbara Ertter, Mary Bowerman et al. 1995-5-7 14050 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, grassy flat, roadside vegetation, clay substrate. Comment
  UCD134487  Micropus californicus var. californicus P. B. Kennedy 1925-4-26 s.n. Contra Costa Mt. Diablo. Below old road. Comment
  CAS-BOT-BC348650  Micropus californicus var. subvestitus V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Val. Comment
  JEPS89620  Microseris campestris Dean W. Taylor 1990-4-23 10634 Contra Costa ca. 2 mi. due w. Byron Hot Springs; San Joaquin Valley, Byron Hot Springs 7 1/2 Quad. 1964 ed. 30 Comment
  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
  UC1795751  Microseris douglasii Barbara Ertter, Brad Olson, Diane Lake 1996-4-14 14585 Contra Costa Crest of Marsh Creek Road on north side of Mt. Diablo southeast of Clayton, south-facing roadcut opposite entrance to Three Springs Trail; annual grasses and Lotus. 274 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
  CAS-BOT-BC348886  Microseris douglasii subsp. douglasii Mary L. Bowerman 1933-5-8 2012 Contra Costa Mount Diablo. Fossil Ridge near crest, on north side by side road Comment
  CAS-BOT-BC348891  Microseris douglasii subsp. douglasii Alice Eastwood 1921-4-18 10252 Contra Costa Antioch Comment
  JEPS17890  Microseris douglasii subsp. douglasii Rimo Bacigalupi with G. T. Robbins 1954-3-26 5526 A Contra Costa field along Deer Valley Road; Deer Valley 76 Comment
  UC218905  Microseris douglasii subsp. douglasii Katharine Brandegee 1907-5-3 Contra Costa near Antioch Comment
  UC691465  Microseris douglasii subsp. douglasii Mary L. Bowerman 1931-4-18 729 Contra Costa in basin of ne fork Sycamore Canyon; Mount Diablo Comment
  UC92197  Microseris douglasii subsp. douglasii Katharine Curran Contra Costa Mount Diablo Comment
  CAS-BOT-BC348895  Microseris douglasii subsp. douglasii K. L. Chambers 1953-4-25 449 Contra Costa Balfour Road ca. 4 mi. w. of Brentwood and 1.8 mi. e. of its junction with Antioch-Briones Valley Rd. 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
  UC1795746  Microseris douglasii subsp. douglasii Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14241 Contra Costa South side Mount Diablo, edge of open meadow in flats near head of Curry Creek along road to Sheepherders Springs from Sloan Road, clay soil. 426 Comment
  JEPS14576  Microseris douglasii subsp. tenella G. Thomas Robbins with Peter H. Raven 1956-4-28 3665 Contra Costa just s El Cerrito city limits (along Arlington Ave at Kenilworth Dr); Berkeley Hills 213 Comment
  UC768670  Microseris douglasii subsp. tenella Robert F. Hoover 1939-4-25 4062 Contra Costa Richmond Hills Comment
  POM53413  Microseris lindleyi C. F. Baker 1903-4-28 2832 Contra Costa Marsh Creek, Mount Diablo Comment
  SEINET5561514  Mimulus aurantiacus H. S. Gentry 1931-1 55 Contra Costa Collected on Mt. Diablo near Buckle Point. Comment
  JEPS10227  Mimulus aurantiacus var. aurantiacus W. L. Jepson 1918-6-5 7605 Contra Costa Donner Canyon Mt. Diablo Comment
  UC76079  Mimulus aurantiacus var. aurantiacus Miss Carlotta Case July, 1904 Contra Costa Muir Station Comment
  POM204480  Mimulus guttatus J. T. Howell 1933-5-14 11242 Contra Costa St. Mary's College Comment
  UC103726  Mimulus latidens M. K. Curran May 1886 Contra Costa Antioch Comment
  UC691740  Mimulus nasutus Mary L. Bowerman 1933-4-9 1834 Contra Costa w fork Dannor Canyon; Mount Diablo 243 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
  UC691650  Mimulus rattanii Mary L. Bowerman 1933-5-31 2222 Contra Costa Juniper Camp Mount Diablo Comment
  CAS-BOT-BC388584  Minuartia douglasii Alice Eastwood 1915-5-30 4512 Contra Costa Mt. Diablo Comment
  UC692296  Minuartia douglasii Mary L. Bowerman 1935-4-22 2889 Contra Costa ridge w Pioneer Road (west of Old Stage Road); Mount Diablo Comment
  UC54731  Minuartia pusilla J. P. Tracy 1903-4-18 1798 Contra Costa slope beyond Bald Peak; Region about San Francisco Bay, Berkeley Hills 304 Comment
  RSA135441  Monardella douglasii Volney Rattan 1886-6-14 s.n. Contra Costa Mt. Diablo Comment
  UC76184  Monardella douglasii Milo S. Baker 1904-6-22 Contra Costa near Hurley's; Mt. Diablo 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
  CAS-BOT-BC327805  Monolopia gracilens Lewis S. Rose 1935-5-16 35166 Contra Costa Mt. Diablo Comment
  JEPS99497  Monolopia gracilens Mary Bowerman 1979-5-2 Contra Costa Mount Diablo, Old Mines Trail, Back Canyon. Comment
  UC903116  Monolopia lanceolata Donald Nelson 1941-3-23 Contra Costa e of Byron Comment
  UC618925  Monolopia major R. F. Hoover 1935-3-10 311 Contra Costa Kirker Pass Comment
  UC1606312  Montia fontana Barbara Ertter, Chris Thayer 1993-5-7 11691 Contra Costa 1/2 mi se of Inspiration Point (on Wilcat Canyon Road, East Bay Municipal Utilities District land e of Tilden Park); Hopkins Spring, East Bay Municipal Utilities District land 304 Comment
  JEPS65189  Myosurus L. R. Heckard 1971-4-15 2478 Contra Costa at intersection of Holey Road, s of Byron Comment
  CAS-BOT-BC83285  Myosurus minimus M. K. Curran 1884-1-1 s.n. Contra Costa Near Antioch. Comment
  CAS-BOT-BC83292  Myosurus minimus Herbert L. Mason 1952-4-26 14269 Contra Costa 3.5 miles south of Byron. Comment
  CAS-BOT-BC83294  Myosurus minimus Peter H. Raven; D. Stone; H. L. Mason; R. Ornduff; et al. 1957-4-4 10582 Contra Costa 3.0 miles south of Byron. Comment
  CHSC68026  Myosurus minimus James D. Jokerst 1989-3-28 3058 Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. Comment
  UC1101328  Myosurus minimus Herbert L. Mason 1952-4-14 14262 Contra Costa 2.5 mi s of Byron Comment
  UC1738085  Myosurus minimus H. L. Mason 1957-3-22 14268 B-6 Contra Costa 3 mi S of Byron ( on road to Herdlyn) Comment
  UC1738087  Myosurus minimus H. L. Mason 1956-5-24 14268 B-1 Contra Costa 3 mi S of Byron ( on the road to Herdlyn) Comment
  UC407383  Myosurus minimus Ira L. Wiggins 1930-4-17 4580 Contra Costa 1/4 mi s Byron Comment
  UC1738118  Myosurus minimus subsp. apus D. E. Stone 1955-8-29 8 -8 Contra Costa 3 mi S of Byron (on the road to Herdlyn) Comment
  UC1101330  Myosurus sessilis Herbert L. Mason 1952-4-14 14263 Contra Costa 3.5 mi s of Byron Comment
  UC1738120  Myosurus sessilis D. E. Stone 1956-5-25 8 -31 Contra Costa 3 mi S of Byron ( on road to Herdlyn) Comment
  UCR141655  Myriophyllum sibiricum M. R. Bell 1950-10-9 s.n. Contra Costa Near Concord, farm of E.J. Mangini Comment
  UC2042751  Myriophyllum verticillatum Barbara Ertter with Lynne Hosley 1991-9-22 10822 Contra Costa Lafayette Reservoir in hills SW of Lafayette, in water at E end of dam. 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
  JEPS102918  Narcissus tazetta Barbara Ertter 1998-1-25 15910 Contra Costa so of Donner Canyon trailhead (Back Canyon Rd.); Mount Diablo Comment
  POM264922  Nassella cernua A. A. Beetle 1941-3-28 1718 Contra Costa Orinda Comment
  CAS-BOT-BC260128  Nassella pulchra Mary L. Bowerman 1935-4-26 2902 Contra Costa Mount Diablo. W of Indian Ceremonial Spring 1021 Comment
  CAS-BOT-BC260131  Nassella pulchra Mary L. Bowerman 1933-5-18 2125 Contra Costa Mount Diablo. Blackberry Spring Comment
  UCD87464  Nassella pulchra Beecher Crampton 1956-5-14 3388 Contra Costa 6.7 miles southwest of city of Antioch, along ridge between old coal mining towns of Somersville and Nortonville. Comment
  JEPS103663  Navarretia hamata subsp. parviloba David Gowen 2003-6-14 Contra Costa Lime Ridge Open Space, on fire road below transmission tower 274 Comment
  JEPS116947  Navarretia heterandra David Gowen 2008-4-16 858 Contra Costa West end of Horse Valley. 146 Comment
  SEINET183957  Navarretia mellita John Thomas Howell 1938-6-30 13938 Contra Costa Head od Seista Valley. Comment
  UC2042986  Navarretia pubescens Barbara Ertter with Alan Prather 2003-6-7 18207 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, shortcut between Coyote Trail and Stone Corral Trail. Comment
  JEPS112005  Navarretia squarrosa D. G. Kelch 2005-5-1 05 .191 Contra Costa Crockett - Edwards Canyon 150 Comment
  JEPS75501  Navarretia squarrosa P. F. Yorks 1975-6-29 462 Contra Costa ca 2 km s Bear Creek Road (on Hampton Road, n of Briones Reservoir); Hampton Road Natural Reserve 200 Comment
  UC1607552  Navarretia squarrosa Barbara Ertter with Laura Fujii 1990-7-21 9398 Contra Costa w of Pleasant Hill (near junction of Briones Crest and Spengler trails); Briones Regional Park, Briones Hills 396 Comment
  CDA40363  Nemophila heterophylla A. G. Murdock 2004-3-5 210 Contra Costa Carquinez Strait Region; Sky Ranch. Comment
  JEPS100041  Nemophila heterophylla G. Smick 2003-2-27 GAS 54 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1021937  Nemophila heterophylla Rolf Y. Berg 1955-4-3 Contra Costa Laurel Dell Camp Mt. Diablo State Park; , Laurel Dell Camp Comment
  UC691707  Nemophila heterophylla Mary L. Bowerman 1931-5-7 806 Contra Costa n of crest Mount Diablo (North Peak Ridge, Mount Diablo); , North Peak Ridge Comment
  OBI48658  Nemophila heterophylla Lewis S. Rose 1940-4-11 40179 Contra Costa March Crk, 6 mi E of Clayton Comment
  UC1069193  Nemophila menziesii R. C. Wilson 1935-3-13 124 Contra Costa 1 1/2 mi se Wall Pt.; Mt. Diablo Quad., se of Wall Pt. Comment
  UC592190  Nemophila menziesii H. L. Mason 1932-3-20 6837 Contra Costa Antioch sand hills Comment
  UC67147  Nemophila menziesii Harley P. Chandler 1900-3-23 595 Contra Costa Briones Hills San Francisco Bay Region, Briones Hills Comment
  JEPS111831  Nemophila menziesii var. menziesii D. G. Kelch 2005-3-25 05 .96 Contra Costa Fernandez Ranch Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak 115 Comment
  UC691708  Nemophila pedunculata Mary L. Bowerman 1932-3-27 1139 Contra Costa below Mitchell Rock (Mount Diablo); , below Mitchell Rock Comment
  POM300990  Nicotiana bigelovii Mary L. Bowerman 1936-6-20 3416 Contra Costa Ridge west of Mount Zion, west side. 213 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
  UC691645  Nuttallanthus texanus Mary L. Bowerman 1932-4-16 1340 a Contra Costa Eagle Point ridge just s of Twin Peaks (Mount Diablo); , Eagle Point Comment
  JEPS99491  Nuttallanthus texanus Mary Bowerman 1995-5-28 Contra Costa Mount Diablo, Knoll 1000' N of Wall Pt. Trail. Trail to Pine Pond from Wall Pt. fire road half encircles it on W side. Comment
  CAS-BOT-BC140359  Oemleria cerasiformis Barrett Anderson 1987-4-30 3506 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD 125 Comment
  JEPS112074  Oemleria cerasiformis D. G. Kelch 2003-2-7 03 .35 Contra Costa Sky Ranch. Dutra Road path ~700-1000 ft. 250 Comment
  JEPS112083  Oemleria cerasiformis D. G. Kelch 2004-3-12 04 .21 Contra Costa Pinole Valley Hillside and canyon above Wright Road. Off of Pinole Valley Road 130 Comment
  RSA51235  Oemleria cerasiformis Peter H. Raven 1950-3-5 1409 Contra Costa Happy Valley Road, 2.8 miles above intersection with Upper Happy Valley road. 244 Comment
  UC1128078  Oemleria cerasiformis N. French 1933-3-13 36 Contra Costa San Pablo Creek San Francisco Quad. (above Sheldon School) 91 Comment
  UC691103  Oemleria cerasiformis Mary L. Bowerman 1933-4-22 1887 Contra Costa Curry Cave Point trail; Mount Diablo 396 Comment
  UC691109  Oemleria cerasiformis Mary L. Bowerman 1931-2-8 502 Contra Costa 4.5 mi from Mount Diablo west entrance (Mineral Spring); Mount Diablo Comment
  CAS-BOT-BC140362  Oemleria cerasiformis Volney Rattan 1883-4-1 s.n. Contra Costa Martinez Comment
  UC2028407  Oenanthe sarmentosa Barbara Ertter with Richard K. Brummitt 1998-5-16 16098 Contra Costa Antioch Marina, edge of brackish marsh 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
  UC2029152  Oenothera deltoides subsp. cognata Barbara Ertter, Chris Thayer 1994-5-19 12782 Contra Costa Highway 4 between Brentwood and Oakley at Honey Lane (halfway between Cypress Rd. and Delta Rd.) Comment
  CAS-BOT-BC171597  Oenothera deltoides subsp. howellii Walter Knight 1965-3-1 s.n. Contra Costa Antioch dunes. Comment
  UC635385  Oenothera deltoides subsp. howellii H. L. Mason 1929-3-31 5163 Contra Costa Antioch San Joaquin River (sand dike along river) Comment
  CHSC97920  Olea europaea D. G. Kelch 2006-6-23 06 .322B Contra Costa West Valona. West of the Zampa Bridge above San Pablo Ave. Along small stream draining north into the western end of the Carquinez Strait. 91 Comment
  JEPS111550  Olea europaea D. G. Kelch 2004-3-5 04 .1 Contra Costa Martinez - Rankin Open Space Rankin Park, Martinez, Contra Costa County, CA 80 Comment
  UC2028003  Olea europaea Barbara Ertter with Amy Rusev 1998-1-17 15902 Contra Costa Edge of Lime Ridge Open Space at NW foot of Mount Diablo, around former quarry [subsequently developed] on south side of Ygnacio Valley Road. Comment
  UC2028243  Olea europaea Barbara Ertter, Tony Morosco 1998-9-18 16419 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, western quarry area. Comment
  UC1076301  Orobanche fasciculata Herbert L. Mason 1926-5-7 2704 Contra Costa Near Summit of Mount Diablo. Comment
  UC1125588  Orobanche fasciculata C. M. Belshaw 1936-5-8 2055 Contra Costa SE Slope of Mount Diablo. Comment
  UC27878  Orobanche fasciculata W. H. Brewer 1862-5-10 1064 Contra Costa Low Hills near Kirker's Pass. Comment
  UC691505  Orobanche fasciculata Mary L. Bowerman 1935-5-16 2995 Contra Costa Mount Diablo. Russelman Park, just south of the north boundary of section 25 (east of gate). Comment
  CAS-BOT-BC499852  Orobanche fasciculata W. L. Jepson 1918-6-5 7618 Contra Costa Mt. Diablo (north peak) 1066 Comment
  UC2045289 Image available Orobanche fasciculata Mary L. Bowerman 1930-6-28 408 Contra Costa Meridian Peak near summit (?) Comment
  UC1819031  Orobanche uniflora Barbara Ertter, Mary Bowerman, Lisa Schultheis 1995-3-31 13945 Contra Costa Mount Diablo State Park, steep west-facing bank with outcrops near weir at mouth of Mitchell Canyon. Comment
  POM181461  Orthocarpus erianthus I. L. Wiggins 1930-4-17 4571 Contra Costa 1/4 mi. S. of Byron. Comment
  RSA29779  Orthocarpus erianthus Joseph A. Ewan 1934-4-8 8762 Contra Costa Head of Hog Canyon, S slope Mt Diablo. 640 Comment
  POM181478  Orthocarpus purpurascens I. L. Wiggins 1930-4-17 4555 Contra Costa 1 mi E of Mountain House on road to Byron. Comment
  UC691807  Osmorhiza berteroi Mary L. Bowerman 1931-3-21 594 Contra Costa Sycamore Canyon Mount Diablo 350 Comment
  RSA720798  Osmorhiza berteroi Mary L. Bowerman 1975-6-7 s.n. Contra Costa Mount Diablo, Big Spring Comment
  UC692540  Osmorhiza brachypoda Mary L. Bowerman 1930-6-14 321 Contra Costa Mount Diablo; summit, n side Comment
  UC2062642  Osmorhiza brachypoda Barbara Ertter with Mike Park, David Gowen, and Victoria Seidman 2004-4-26 18371 Contra Costa Curry Canyon between Alder Creek and Rhine Canyon, south side of Mount Diablo. Comment
  CDA4721  Oxalis corniculata D. G. Kelch, A. G. Murdock 2005-5-23 5 .375 Contra Costa Carquinez Strait Region; Crockett - Crolona Heights. 6th Street at Lillian Street, Crockett. Comment
  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
  UCD150909  Panicum capillare James A. Neilson Jr. 1972-10-22 3506 Contra Costa Walnut Creek drainage at State Highway 4. Elevation estimated using Google Earth by label maker. 1 Comment
  CAS-BOT-BC253783  Panicum hillmanii Walter Knight 1977-7-10 s.n. Contra Costa East Bay Regional Park District. Along Lafayette-Moraga Regional Trail. Intersection of Foye Street, Lafayette Comment
  SD241914  Papaver californicum Mary Bowerman 1978-5-14 Contra Costa Mount Diablo. Old wagon trail to mines on E face of Eagle Peak. Comment
  JEPS41043  Parapholis incurva L. R. Heckard and R. Bacigalupi 1965-5-11 9068 Contra Costa at bay on n end Brooks Island (sw of Richmond in San Francisco Bay); San Francisco Bay, n end of Brooks Island Comment
  SBBG115829  Parapholis incurva K. Brandegee 1918-5-8 Contra Costa Byron Hot Springs Comment
  SEINET4344382 Image available Parapholis incurva Barbara Ertter, Brad Olson 1994-5-7 12764 Contra Costa S. end Pt. Molate Beach Park W. of Richmond N. of San Rafael Bridge, edge of San Fransisco Bay Comment
  UC2028963  Parapholis incurva Barbara Ertter with Brad Olson et al. 2000-6-2 17306 Contra Costa Brushy Peak Regional Preserve NE of Livermore, at south base of Brushy Peak. Comment
  CDA22266  Parietaria judaica D. G. Kelch, A. G. Murdock 2004-4-11 4 .078 Contra Costa Carquinez Strait Region; Crockett - Crolona Heights. 6th Street at Lillian Street. In Crockett. 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
  UCD150906  Paspalum distichum James A. Neilson Jr. 1972-11-2 3614 Contra Costa Walnut Creek drainage at State Highway 4. Elevation estimated using Google Earth by label maker. 1 Comment
  SEINET7085235  Pavonia hastata Steven R. Hill 2010-7-19 38544 Contra Costa Residence of Kristin Yanker-Hansen, 569 Contada Circle, Danville [94526]. Coordinate Datum: WGS84/NAD83. 122 Comment
  UC79144  Pectocarya penicillata T. S. Brandegee April 1889 Contra Costa Antioch Comment
  UC27313  Pedicularis densiflora W. L. Jepson Contra Costa Mount Diablo Comment
  UC886639  Pedicularis densiflora Alice Eastwood 1922-3-17 11084 Contra Costa Mount Diablo Comment
  UCD123333  Pedicularis densiflora Collector unknown 1932-2-1 Contra Costa Mt. Diablo. 609 Comment
  JEPS106989  Pellaea andromedifolia J. Greenhouse with Kevin Hintsa 2004-4-5 5087 Contra Costa Mt. Diablo, Fire Interpretive Trail, Devil's Pulpit 1088 Comment
  JEPS112054  Pellaea andromedifolia A. G. Murdock 2003-2-21 68 Contra Costa Mt. Wanda - Martinez Chaparral, west border of Mt. Wanda property. 120 Comment
  POM281783  Pellaea andromedifolia Lyman Benson 1931-3-18 2667 Contra Costa Martinez Comment
  CAS-BOT-BC67559  Pellaea mucronata Mary L. Bowerman 1933-3-25 1774 Contra Costa Mount Diablo - ridge north of Emmons Canyon. 335 Comment
  RSA686984  Pellaea mucronata Mark Morris 1929-03 14909 Contra Costa Mount Diablo, Contra Costa Comment
  UC692120  Pellaea mucronata var. mucronata Mary L. Bowerman 1933-3-25 1774 Contra Costa ridge n of Emmons Canyon; Mt Diablo 335 Comment
  NY583786  Penstemon centranthifolius C. F. Baker 1903-4-25 2938 Contra Costa Antioch Comment
  NY583859  Penstemon centranthifolius A. A. Heller 1908-4-16 8895 Contra Costa East of Antioch 22.9 Comment
  SEINET12320780  Penstemon centranthifolius Unknown 1980-1 3879 Contra Costa Lime Ridge, N end, S of Ygnacio Valley Rd between Walnut Creek & Concord Comment
  UC2070585  Penstemon centranthifolius Barbara Ertter with Steve Matson 2003-3-15 18104 Contra Costa Black Diamond Mines Regional Preserve, SW side of Rose Hill. Comment
  POM14652  Penstemon heterophyllus subsp. purdyi C. F. Baker 1903-4-28 2872 Contra Costa Marsh Creek, Mt. Diablo. Comment
  JEPS85627  Penstemon heterophyllus var. heterophyllus W. L. Jepson 1921-6-16 9315 Contra Costa Mt. Diablo Comment
  UC691510  Penstemon heterophyllus var. heterophyllus Mary L. Bowerman 1935-6-15 3132 Contra Costa Flat (first bottom) where stream forks Mount Diablo, Mitchell Creek, Flat (first bottom) (Mitchell Creek, Mount Diablo) 640 Comment
  UC831505  Pentachaeta alsinoides Lewis S. Rose 1940-4-30 40251 Contra Costa 5 mi e Clayton; Marsh Creek 60 Comment
  CHSC21633  Pentagramma triangularis Willis Ball 1975-3-9 490 Contra Costa In area #8. Ca. 560 yds sw of main parking lot ca. 800 yds w of Contra Loma Blvd. 137 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
  UC606765  Pentagramma triangularis subsp. triangularis Edward Lee 1936-4-19 2015 Contra Costa ne shore of island Red Rock; San Francisco Bay Comment
  CAS-BOT-BC418832  Persicaria hydropiperoides Brian Atwater 1978-10-24 BA- 165 Contra Costa Between Bethel Island and Holland Tract Comment
  CAS-BOT-BC413778  Persicaria lapathifolia D. E. Breedlove 1969-10-18 16719 Contra Costa Along Alhambra Valley Road near junction with Bear Creek Road, SE of Pinole Comment
  UC107330  Phacelia breweri Katharine Curran May 1883 Contra Costa Mt. Diablo Comment
  POM65782  Phacelia breweri Herbert McLean Evans 1921-4-30 s.n. Contra Costa Mt. Diablo. Comment
  CDA1102  Phacelia californica D. G. Kelch, A. G. Murdock 2005-5-1 5 .189 Contra Costa Carquinez Strait; Crockett; Edwards Canyon. Comment
  JEPS2178  Phacelia cicutaria var. cicutaria M. K. Curran 1884-1 Contra Costa Antioch Comment
Read comments Feb 9 2013
  POM89836  Phacelia ciliata Chesnut, E. R. Drew 1889-4-17 s.n. Contra Costa Summerville. Comment
  UC881009  Phacelia ciliata var. ciliata Lewis S. Rose 1937-3-26 37013 Contra Costa Brentwood 6 Comment
  UC107374  Phacelia distans T. S. Brandegee May 1889 Contra Costa Antioch Comment
  UC1084393  Phacelia distans G. Thomas Robbins 1937-4-25 143 Contra Costa along roadside to summit of Mt. Diablo Comment
  UC56706  Phacelia distans Harley P. Chandler 1901-4-5 967 Contra Costa Mt. Diablo Comment
  UCD102384  Phacelia distans Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 960 Comment
  SEINET10946719 Image available Phacelia distans Charles F. Baker 1903-4-28 Baker 2806 Contra Costa Antioch. 1-1 1/2 feet, common in the sandhills. "Also collected by me long ago at the same place." Comment
  UC671741  Phacelia divaricata Lincoln Constance, Donald G. Nelson 1940-4-23 2571 Contra Costa 1 mi n Berkeley; The Arlington Comment
  UC107570  Phacelia imbricata T. S. Brandegee 1892-6-9 Contra Costa Port Costa Comment
  JEPS2169  Phacelia imbricata subsp. imbricata W. L. Jepson 1918-6-5 7611 Contra Costa North Peak Mount Diablo 944 Comment
  JEPS1082  Phacelia nemoralis subsp. nemoralis Mary L. Bowerman 1933-6-3 2233 Contra Costa Mount Diablo, Ranson Point Trail Mount Diablo; , Ranson Point Trail 1158 Comment
  CAS-BOT-BC154337  Phacelia phacelioides Alice Eastwood 1921-6-11 s.n. Contra Costa Mt. Diablo Comment
  SEINET5506855  Phacelia phacelioides L. Constance, C. W. Sharsmith 1940-4-27 2574 Contra Costa Mount Diablo, north of Juniper Camp 762 Comment
  RSA29642  Phacelia tanacetifolia Joseph A. Ewan 1935-3-6 9128 Contra Costa Donovan Road, Kirker Pass. Comment
  CAS-BOT-BC265962  Phalaris minor John Thomas Howell 1933-5-14 11234 Contra Costa St. Mary's College Comment
  UC692384  Phalaris minor Mary L. Bowerman 1933-4-15 1849 Contra Costa canyon s Arroyo del Cerro, Mount Diablo (at edges of s-facing flat which slopes slightly adjacent to stream bed); Mount Diablo Comment
  UCD89059  Phalaris minor Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  CAS-BOT-BC265959  Phalaris minor R. E. Frenkel 1964-4-29 462 Contra Costa 0.2 mile west of Bixler Road on Balfour Road 6 Comment
  CDA15270  Phalaris paradoxa G. F. Hrusa, D. Crowe 1998-5-8 14401 Contra Costa Sacramento Delta; Open sites near cyclone fence-line surrounding disturbed grasslands at E end of Dow Chemical property. Uncommon here. Comment
  JEPS99588  Phalaris paradoxa Mary Bowerman 1995-7-2 Contra Costa Mount Diablo, foot [trail] from Back Canyon to Donner Canyon. Comment
  UCD89357  Phalaris paradoxa Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  JEPS100003  Philadelphus G. Smick 2003-5-1 GAS 157 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA755793  Pholistoma membranaceum Barbara Ertter 1992-3-8 10909 Contra Costa NE edge of Black Diamond Mines Regional Preserve, NE-heading canyon with steep loose sides ca. 1/2 mile west of junction of Stewartville Trail and Frederickson Lane. Comment
  SD211620  Pholistoma membranaceum Barbara Ertter 1992-3-8 10909 Contra Costa Northeast edge of Black Diamond Mines Regional Preserve, Northeast-heading canyon with steep loose sides circa 1/2 mile West of junctin of Stewartville Trail and Frederickson Lane Comment
  HSC83448  Pholistoma membranaceum J. M. Tucker 1981-4-25 4454 Contra Costa Antonio Souza Ranch SW of Byron, summit of High Hill 309 Comment
  SEINET6630848  Phoradendron flavescens J. A. Ewan 1933-10-15 8040 Contra Costa South west slope of Mt. Diablo Comment
  CDA22381  Phoradendron macrophyllum D. G. Kelch, A. G. Murdock 2005-5-13 5 .235 Contra Costa Carquinez Strait Region; Martinez. South of oil refinery along railroad tracks in fragment of habitat. Comment
  CDA7905  Phoradendron macrophyllum D. G. Kelch, A. G. Murdock 2005-1-16 5 .035 Contra Costa Carquinez Strait; Dutra fire road. Comment
  JEPS107085  Phoradendron macrophyllum Barbara Ertter, Brad Olson, Diane Lake, Seth Adams, et al. 1994-9-11 13085 Contra Costa Chaparral Springs addition to Mt. Diablo State Park, north side of Marsh Creek Road at high point southeast of Clayton. Comment
  CAS-BOT-BC141121  Phoradendron serotinum subsp. macrophyllum Lewis S. Rose 1930-12-10 s.n. Contra Costa Walnut Creek Comment
  UC521716  Phoradendron villosum Joseph Andorfer Ewan 1933-10-15 8040 Contra Costa s.w. slope Mt. Diablo 1066 Comment
  UC6099  Phoradendron villosum J. Burtt Davy 1895-4-7 911 Contra Costa Antioch Comment
  UC692039  Phoradendron villosum Mary L. Bowerman 1932-1-23 1077 Contra Costa knoll w. of the knoll between Sycamore Ridge and 1920 point Mt. Diablo Comment
  CAS-BOT-BC260887  Phragmites australis Walter Knight; Irja Knight 1978-8-14 3168 Contra Costa Browns Island Comment
  JEPS125636  Phragmites australis Daniel Slakey with CNPS Volunteers 2015-9-12 224 Contra Costa Northern edge of Browns Island, at entrance to Crooked Slough. Comment
  UC650594  Phragmites australis Ira L. Wiggins 1930-4-18 4588 Contra Costa Jersey Island Comment
  UCD163491  Phragmites australis D. Slakey; CNPS Volunteers 2015-9-12 224 Contra Costa Northern edge of Browns Island, at entrance to Crooked Slough. Plants infected with pests; TJM 2 0 Comment
  SBBG122964  Phyla nodiflora B. Ertter 1990-9-10 9634 Contra Costa Briones Hills S of Martinez, Maricich Lagoon at jct of Alhambra Crk Trail and Old Briones Rd; Briones Regional Park 335 Comment
  CDA31164  Pickeringia montana D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .225 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  UC534973  Pilularia americana Katharine Brandegee 1909-4-24 Contra Costa between Antioch and Marsh Creek (Briones Rd.) Comment
  SBBG336  Pinus attenuata J. M. Tucker 1941-9-26 411 Contra Costa summit of Moraga Ridge 500 Comment
Read comments Sep 13 2011
  UC144  Pinus attenuata J. B. Davy 1897-1-1 Contra Costa Moraga Comment
  JEPS46807  Pinus coulteri T. H. Goodspeed 1909-1-1 Contra Costa near Clayton (Mt. Diablo); Mt. Diablo Comment
  JEPS46810  Pinus coulteri W. L. Jepson 1931-4-5 15726 Contra Costa Nortonville Comment
  UC691927  Pinus coulteri Mary L. Bowerman 1931-3-8 565 Contra Costa above Mitchell Rock; Mount Diablo Comment
  UCR143277  Pinus coulteri C. B. Wolf, A. L. Chickering, H. L. Mason 1943-2-28 11442 Contra Costa Central Coast Range, 1 mile SW of old coal mining settlement of Nortonville at northern base of Mt. Diablo hills 427 Comment
  JEPS48211  Pinus sabiniana W. L. Jepson 1901-10-12 1749 Contra Costa Mitchell Canon Mt. Diablo, Mitchell Canon Comment
  UC691928  Pinus sabiniana Mary L. Bowerman 1931-2-8 516 Contra Costa by roadside around bend from (below) Silver Spring; Mount Diablo Comment
  UC85462  Pinus sabiniana unknown Contra Costa Mt. Diablo Comment
  SEINET3875083  Pinus sabiniana Dusty Mengshol 1963-3-17 25 Contra Costa 3/4 mile from top, Summit Trail, Mt. Diablo.; 0 1006 Comment
  CHSC116600  Plagiobothrys Lowell Ahart; Josephine Guardino 2016-4-19 20770 Contra Costa Undesignated section of Canada de Los Vaqueross Land Grant. 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  CAS-BOT-BC227987  Plagiobothrys David D. Keck 1933-4-2 1995 Contra Costa Vasco Road, eastern county, N of Vasco School Comment
  JEPS60914  Plagiobothrys acanthocarpus Edw. L. Greene 1889-3-24 Contra Costa near Byron Comment
  RSA755523  Plagiobothrys acanthocarpus Barbara Ertter 1992-3-8 10912 Contra Costa Contra Loma Regional Park; vernally wet flat northeast of bend in Frederickson Lane. Comment
  UC2029043  Plagiobothrys acanthocarpus Barbara Ertter 2000-3-19 16894 Contra Costa Southwest flank of Mount Diablo, east of Pine Ridge, below Wall Point Road. Comment
  UC691335  Plagiobothrys bracteatus Mary L. Bowerman 1935-6-28 3167 Contra Costa s summit (by Old Government Trail); Mount Diablo, Chase Pond 548 Comment
  POM204086  Plagiobothrys canescens L. S. Rose 1933-3-29 33046 Contra Costa Pittsburg Comment
  UC180104  Plagiobothrys fulvus Harley P. Chandler 1901-3-21 840 Contra Costa s Concord; Lime Ridge Comment
  CAS-BOT-BC277  Plagiobothrys humistratus M. K. Curran 1884-1-1 s.n. Contra Costa near Antioch Comment
  RSA666360  Plagiobothrys leptocladus Barbara Ertter, J. D. Jokerst, D. Magney 1989-4-5 8129 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  UC536016  Plagiobothrys nothofulvus Laurence S. Jones 1934-4-8 44 Contra Costa w slope Mt. Diablo (approx 3 mi surface distance from peak) 609 Comment
  UC691404  Plagiobothrys nothofulvus Mary L. Bowerman 1931-4-4 630 Contra Costa 2 mi from Mount Diablo west road (= North Rd.) entrance; Mount Diablo 259 Comment
  UCSC000623  Plagiobothrys nothofulvus R. C. Wilson 1935-3-19 137 Contra Costa 2 mi N.W. of Wall Pt. Wall Pt. - Mt Diablo 335 Comment
  RSA6495  Plagiobothrys stipitatus D. D. Keck 1933-4-2 1995 Contra Costa Vasco road, eastern Contra Costa County, N of Vaso School. Comment
  JEPS65186  Plagiobothrys stipitatus var. micranthus L. R. Heckard 1971-4-15 2481 Contra Costa s Byron (at intersection of Holey Rd.) Comment
  UC1301093  Plagiobothrys stipitatus var. stipitatus Helen K. Sharsmith 1963-4-7 5296 Contra Costa near Byron; San Francisco Bay Region 7 Comment
  CHSC67898  Plagiobothrys trachycarpus James D. Jokerst 1989-3-28 3054 Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. Comment
  JEPS111489  Plagiobothrys undulatus Nancy Hillyard 2004-5-18 886 Contra Costa Briones Park Comment
  JEPS116832  Plagiobothrys undulatus David Gowen 2007-5-8 707 Contra Costa Briones Regional Park, in vernal depression northeast of Sindicich Lagoon. Comment
  RSA523620  Plantago bigelovii subsp. bigelovii S. Galen Smith, R. C. Bacigalupi 1957-4-28 2851 Contra Costa 1 mile S of Byron. Comment
  RSA756696  Plantago bigelovii subsp. californica Barbara J. Ertter, Jim Jokerst, Dave Magney 1989-4-5 8128 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  CDA21563  Plantago coronopus D. G. Kelch 2008-9-1 8 .295 Contra Costa Carquinez Strait; 200 m W of Pacheco Slough, E of Martinez. Comment
  JEPS7118  Plantago elongata W. L. Jepson May 23 1891-May 24 1891 Contra Costa Mt. Diablo Comment
  JEPS111996  Plantago erecta D. G. Kelch 2003-3-28 03 .88 Contra Costa Rodeo - Lone Tree Point 2 Comment
  JEPS6441  Plantago erecta W. L. Jepson 1922-5-11 9637 Contra Costa North Berkeley Hills Comment
  RSA755543  Plantago erecta Barbara J. Ertter, Jim Jokerst, Dave Magney 1989-4-5 8141 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  CDA34274  Plantago lanceolata D. G. Kelch 2009-8-9 9 .558 Contra Costa S of Ozol Rock. Comment
  JEPS111995  Plantago major D. G. Kelch 2003-8-13 03 .115 Contra Costa Martinez Marsh 1 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
  UC1607651  Plantago subnuda Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10882 Contra Costa just w Antioch marina (levee at n-center of preserve, at end of road); Dow Wetlands Preserve Comment
  CAS-BOT-BC6458  Platystemon californicus Mary Katherine (Mrs.) Brandegee 1889-4-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC91605  Platystemon californicus John Thomas Howell 1933-5-14 11277 Contra Costa Hills east of Saint Mary's College. Comment
  UC101592  Platystemon californicus Katharine Brandegee 1907-5-5 c Contra Costa between Antioch and Marsh Creek; between Antioch and Marsh Creek Comment
  UC101594  Platystemon californicus Katharine Brandegee 1907-5-5 f Contra Costa between Antioch and Marsh Creek; between Antioch and Marsh Creek Comment
  UC1126493  Platystemon californicus R. C. Wilson 1935-3-26 143 Contra Costa 2 mi n Walnut Creek; Concord Quad. Comment
  HSC16802  Platystemon californicus J. Wendell Howe 1930-3-30 83 Contra Costa Orinda Comment
  UC692174  Platystemon californicus Mary L. Bowerman 1932-3-23 1133 Contra Costa rocky outcrop overlooking Donner Canyon, Mount Diablo; Mount Diablo 304 Comment
  JEPS111775  Plectritis macrocera D. G. Kelch 2005-3-25 05 .83 Contra Costa Pinole Peak Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak 250 Comment
  JEPS14517  Plectritis macrocera L. T. Dempster 1956-5-26 1002 Contra Costa above Overhill Court (Orinda); Orinda Comment
  UCD90158  Pleuropogon californicus Peter Kamb; Francia Chisaki, Galem Smith 1951-4-14 1978 Contra Costa 0.2 miles south of junction of Highways 4 and 21, 7 miles north of Walnut Creek. 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
  UC1618403  Pluchea odorata var. odorata Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10869 Contra Costa just w. Antioch marina (along levee at water's edge, accessed from marina, Dow Wetlands Preserve); Dow Wetlands Preserve Comment
  UCD159502  Pluchea odorata var. odorata D. S. Park 2010-9-11 251 -1 Contra Costa Waterfront Rd. Growing in ditch along roadside. Disturbed. Wet. 5 Comment
  UC2028529  Poa annua Barbara Ertter 1998-1-4 15890 Contra Costa South end Diablo Foothills Regional Park southeast of Walnut Creek, Hazzard Pond north of Livorna Staging Area Comment
  UC692328  Poa howellii Mary L. Bowerman 1933-5-21 2148 Contra Costa below Grape Spring (s from Curry Canyon); Mt Diablo Comment
  UC692471  Poa howellii Mary L. Bowerman 1933-4-22 1897 Contra Costa just w Cave Point; Mt Diablo, Inner Black Hills Comment
  UC768578  Poa howellii R. F. Hoover 1938-5-4 3353 Contra Costa Upper Marsh Creek Comment
  UCD91141  Poa howellii G. L. Stebbins Jr. 1936-4-18 1539 Contra Costa head of Curry Canyon, SE side of Mt. Diablo. Comment
  UCSB12522  Poa pratensis Grah, Nancy 1962-4-14 Contra Costa .2 miles north of Miner Rd. on Sleepy Hollow Lane, Orinda 182 Comment
  RSA484205  Poa secunda Mary L. Bowerman 1931-4-18 715 Contra Costa Sycamore Canyon 335 Comment
  CAS-BOT-BC236384  Poa secunda subsp. secunda Mary L. Bowerman 1933-5-3 1984 Contra Costa Mount Diablo. [Indian Ceremonial] Canyon, a little below and across the stream from the spring 731 Comment
  CAS-BOT-BC236388  Poa secunda subsp. secunda Mary L. Bowerman 1935-4-26 2924 Contra Costa Mount Diablo. Meridian Peak summit 1143 Comment
  CAS-BOT-BC236390  Poa secunda subsp. secunda Mary L. Bowerman 1935-5-3 2960 Contra Costa Mount Diablo. Sloan Road 487 Comment
  UC188812  Poa secunda subsp. secunda J. Burtt Davy 1900-3-24 6540 Contra Costa Pt. Richmond Comment
  UC38696  Poa secunda subsp. secunda J. Burtt Davy 1895-4-8 898 Contra Costa Antioch Comment
  UC692416  Poa secunda subsp. secunda Mary L. Bowerman 1933-4-15 1869 Contra Costa canyon s of Arroyo del Cerro (rocky knoll 250 ft below spring); Mt Diablo Comment
  UC692473  Poa secunda subsp. secunda Mary L. Bowerman 1935-5-3 2960 Contra Costa Sloan Rd; Mt Diablo 487 Comment
  UC790973  Poa secunda subsp. secunda A. A. Beetle 1941-3-23 1713 Contra Costa 1 mi e St Mary's College 182 Comment
  UC421583  Pogogyne serpylloides John Thomas Howell 1930-4-22 4747 Contra Costa Bald Peak Comment
  UC692130  Polygonum amphibium Mary L. Bowerman 1935-9-13 3335 Contra Costa Chase Pond Mount Diablo Comment
  UC692146  Polygonum amphibium Mary L. Bowerman 1935-9-13 3338 Contra Costa Hidden Pond Mount Diablo Comment
  JEPS48933  Polygonum amphibium var. emersum W. L. Jepson 1944-10-27 27551 Contra Costa Moraga Valley; in a deep ditch Comment
  CDA9497  Polygonum aviculare D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .222 Contra Costa Byron Airport. Comment
  CDA22736  Polygonum aviculare subsp. buxiforme D. G. Kelch 2006-7-14 06 .328-B Contra Costa Carquinez Strait; Along Marine Vista Ave immmediately west of Pacheco Slough. East of Martinez. Comment
  CDA23558  Polygonum aviculare subsp. neglectum D. G. Kelch 2007-10-6 7 .632 Contra Costa Carquinez Strait; Fernandez Ranch. Muir Land Trust Property 4.5 km W of Rodeo. Comment
  UC1446049  Polypodium calirhiza Alan Smith with Ed Lee 1979-4-25 731 Contra Costa n side Mt. Diablo Peak (trail beyond Devil's Elbow toward saddle between Mt. Diablo and North Peak) 1066 Comment
  CAS-BOT-BC422367  Polypogon Peter Rubtzoff 1968-9-19 5967 Contra Costa Russellman Park Road, 0.7 miles south of Marsh Creek Road. 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
  SBBG689  Polypogon monspeliensis A. A. Beetle 1941-6-24 1750 Contra Costa Point Richmond on San Francisco Bay Comment
  UC50634  Polypogon monspeliensis Jos. Burtt Davy 1900-6-7 6672 Contra Costa near Martinez; near Martinez Comment
  UC665693  Polypogon monspeliensis Thomas Morley 1940-11-21 85 Contra Costa banks at upper end of San Leandro Lake near mouth of Redwood Creek; upper end of San Leandro Lake, near mouth Redwood Creek 129 Comment
  CAS-BOT-BC232581  Polypogon monspeliensis Mary L. Bowerman 1932-8-27 1521 Contra Costa Mount Diablo. Spring S of Turtle Rock Comment
  UCD91299  Polypogon monspeliensis Beecher Crampton 1959-9-3 5453 Contra Costa Contra Costa County, 2 miles north of city of Orinda, Bear Creek. Comment
  UC2028378  Polypogon viridis Barbara Ertter 1998-6-20 16242 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Bob Pond at Old Borges Ranch Comment
  CAS-BOT-BC237470  Polypogon viridis Mary L. Bowerman 1936-8-17 3527 Contra Costa Mount Diablo. Sulphur Spring in Pine Canyon 137 Comment
  JEPS111937  Polystichum munitum D. G. Kelch 2005-3-25 05 .78 Contra Costa Fernandez Ranch Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak 150 Comment
  CAS-BOT-BC102382  Populus fremontii Ira L. Wiggins 1930-4-18 4602 Contra Costa Levee bank, S.E. side of Jersey Island Comment
  JEPS112250  Populus fremontii D. G. Kelch 2004-4-26 04 .129-B Contra Costa Martinez - West: Ozol Rock and Scenic Drive Comment
  UC579898  Populus fremontii subsp. fremontii Annetta Carter 1934-3-30 466 Contra Costa Nortonville Comment
  CAS-BOT-BC267114  Potamogeton Walter Knight; L. R. Heckard; B. Johnson 1978-9-28 3273 Contra Costa Mouth of Crooked Slough, Browns Island Comment
  SBBG122780  Potamogeton diversifolius B. Ertter, B. Olson 1991-9-28 10839 Contra Costa S end of San Pablo Reservoir between Orinda and El Sobrante 91 Comment
  JEPS99495  Potamogeton foliosus Mary Bowerman 1995-6-8 Contra Costa Mount Diablo, Pine Pond. Comment
  CAS-BOT-BC453906  Potamogeton pectinatus Walter Knight; Joanne Dean 1978-8-14 3155 Contra Costa Browns Is. Comment
  JEPS112077  Potentilla anserina subsp. pacifica D. G. Kelch 2003-8-13 03 .107 Contra Costa Martinez Marsh 0 Comment
  CDA29217  Potentilla glandulosa D. G. Kelch 2006-5-7 9 .153 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  CAS-BOT-BC144847  Potentilla rivalis Virginia I. Dains; Walter Knight 1986-8-8 5494 Contra Costa Jct Rock S1 & Werner Cut Comment
  JEPS23821  Proboscidea lutea G. Thomas Robbins 1959-8-1 4114 Contra Costa roadside berm of frontage road just s Mt. Diablo Blvd. ((about 0.5 mi e of concrete bridge at Charles Hill and about 0.2 mi w of jct. of Hidden Valley Rd.), 2 mi w of Lafayette) 144 Comment
  JEPS46549  Proboscidea lutea Mrs. Kate Jared Stirring Sept. 1914 Contra Costa between Concord and Walnut Creek; Ignacio Valley Comment
  JEPS46555  Proboscidea lutea W. E. Chatfield 1959-7-25 Contra Costa roadside berm of frontage road just s Mt. Diablo Blvd. ((about 0.5 mi e of concrete bridge at Charles Hill and about 0.2 mi w of jct. of Hidden Valley Rd.), 2 mi w of Lafayette) 144 Comment
  CAS-BOT-BC202303  Prosopis glandulosa var. torreyana Walter Knight; Irja Knight 1968-9-25 2251 a Contra Costa North entrance Contra Loma Regional Park, west side of road Comment
  JEPS112091  Prunus lyonii D. G. Kelch 2004-5-9 04 .215 Contra Costa Crockett - Eckley Hills North of Bull Valley Staging Area. Rare 13 Comment
  UC12809  Prunus subcordata H. P. Chandler 1900-3-24 Contra Costa Briones Hills Region of Mount Diablo Comment
  JEPS75564  Pseudognaphalium luteoalbum P. F. Yorks 1974-10-27 374 -1 Contra Costa 2.0 km s Bear Creek Road (on Hampton Road, n of Briones Reservoir, in Hampton Road Natural Reserve); Northern coast, Hampton Road Natural Reserve Comment
  CAS-BOT-BC356972  Pseudognaphalium luteoalbum Walter Knight 1977-7-20 s.n. Contra Costa East Bay Regional Park District. On Briones Ridge at about 1,000 ft elev. Briones Regional Park 304 Comment
  JEPS75548  Pseudognaphalium ramosissimum P. F. Yorks 1975-8-29 491 Contra Costa on Hampton Road ca 1.6 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Preserve 180 Comment
  UC691826  Pseudognaphalium stramineum Mary L. Bowerman 1938-9-17 3717 Contra Costa Johnny Walker Spring Mount Diablo, Johnny Walker Spring 731 Comment
  UC2028099  Pseudognaphalium stramineum Barbara Ertter, Chris Thayer 1996-10-25 15373 Contra Costa West side of Mount Diablo, North Gate Road 1 road mile NW of Burma Road, at west end of Long Ridge. Comment
  UC1745623  Psilocarphus brevissimus var. brevissimus Annetta M. Carter 1951-5-13 3055 Contra Costa 3.3 mi. S of Byron. Comment
  UC552339  Psilocarphus oregonus Lucile R. Mason 1935-4-9 Contra Costa Marsh Creek Comment
  CDA29229  Psilocarphus tenellus D. G. Kelch 2005-5-13 05 .272-D Contra Costa Carquinez Strait; Above and west of Edwards Canyon, nr Crockett. Comment
  JEPS111756  Psilocarphus tenellus D. G. Kelch 2005-5-1 05 .204 Contra Costa Crockett - Edwards Canyon 100 Comment
  UC1819052  Psilocarphus tenellus Barbara Ertter, Chris Thayer 1995-4-25 13990 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Devil's Slide area of Sycamore Canyon, roadside thru chaparral zone. 304 Comment
  POM138972  Ptelea baldwinii subsp. crenulata A. D. E. Elmer 1903-05 4327 Contra Costa Mount Diablo. Comment
  RSA126045  Ptelea baldwinii subsp. crenulata A. D. E. Elmer 1903-05 4327 Contra Costa Mount Diablo. Comment
  POM138974  Ptelea baldwinii subsp. crenulata M. S. Baker 1904-6-22 s.n. Contra Costa Mt. Diablo above Walkers. Comment
Read comments Mar 6 2011
  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-BC148636  Ptelea crenulata W. W. Carruth 1903-5-10 s.n. Contra Costa Mitchell Canyon, Mt. Diablo Comment
  CAS-BOT-BC148640  Ptelea crenulata A. D. E. Elmer 1903-5-1 4327 Contra Costa Mt. Diablo Comment
  UC85434  Ptelea crenulata Katharine Brandegee 1907-6-16 Contra Costa hills back of Antioch Comment
  CAS-BOT-BC148620  Ptelea crenulata Ethel Wickes 1917-6-1 s.n. Contra Costa Unspecified Comment
  CAS-BOT-BC76618  Pteridium aquilinum Ira L. Wiggins 1930-4-18 4590 Contra Costa Jersey Island - sides of levees Comment
  JEPS111934  Pteridium aquilinum A. G. Murdock 2003-9-12 160 Contra Costa Pinole On hill east of I-80 between Appian Way and Pinole Valley Road 33 Comment
  CAS-BOT-BC421113  Pterostegia drymarioides Alice Eastwood 1915-5-30 4436 Contra Costa Mt. Diablo Comment
  JEPS57983  Pterostegia drymarioides W. L. Jepson 1923-4-22 9867 Contra Costa Mt. Diablo Comment
  UCD35992  Pterostegia drymarioides Beecher Crampton 1949-4-1 422 Contra Costa Contra Costa County, Moraga Ridge. 60 Comment
  UCD92236  Puccinellia simplex Beecher Crampton 1968-3-27 8233 Contra Costa SE corner, ca. 3.5 miles south of Byron. Comment
  JEPS112099  Pyracantha crenatoserrata D. G. Kelch 2005-5-13 05 .246 Contra Costa Martinez. South of oil refinery along Railroad tracks in fragment of habitat 28 Comment
  UC2027947  Pyrus communis Barbara Ertter 1997-9-7 15792 Contra Costa North side Mount Diablo, cabin site on Donner Creek, in persisting orchard. Comment
  UC1748007  Quercus E. Dean, M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 657 Contra Costa Fossil Ridge, just below and 0.1 mi along fire rd that begins at the parking lot SE of Rock City and climbs onto Fossil Ridge in southeasterly direction Mount Diablo State Park 487 Comment
  CAS-BOT-BC45658  Quercus agrifolia Walter Knight 1965-3-1 981 Contra Costa Antioch Dunes Comment
  JEPS75530  Quercus agrifolia P. F. Yorks 1975-4-10 381 Contra Costa on Hampton Rd ca 1.7 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  RSA758316  Quercus agrifolia Doug Goldman 2004-11-3 2923 Contra Costa South side of Marsh Creek, north side of Morgan Territory Road. 354 Comment
  UCD17416  Quercus agrifolia E. Dean; with B. Ertter, J. M. Tucker, and K. Chaney 2000-9-13 652 Contra Costa California. Contra Costa County: City of El Sobrante; El Sobrante Ridge, upslope of the terminus of Heavenly Ridge Rd., south of junction of Heavenly Ridge Trail and Manzanita Trail, at end of branch off Manzanita trail, south-facing slope overlooking city of El Sobrante. 213 Comment
  CDA20380  Quercus agrifolia var. agrifolia P. Akers 2002-5-11 s.n.- 2 Contra Costa Northern California; Mt Diablo Summit Trail at water tank picnic area. 873 Comment
  UC691312  Quercus berberidifolia Mary L. Bowerman 1935-11-30 3355 Contra Costa Fossil Ridge Mount Diablo Comment
  RSA476539  Quercus chrysolepis Mark Morris 1929-03 14907 Contra Costa Mt. Diablo. Comment
  UCSB23056  Quercus chrysolepis McMinn, Howard 1922-6-2 Contra Costa Near summit of Mt. Diablo Comment
  CAS-BOT-BC86648  Quercus douglasii John Thomas Howell 1926-3-7 1658 Contra Costa Mt. Diablo near toll gate 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
  UC691285  Quercus douglasii Mary L. Bowerman 1930-8-31 445 Contra Costa Dan Cook Canyon Mount Diablo Comment
  UCD57122  Quercus douglasii J. M. Tucker 1946-5-8 s.n. Contra Costa Mt. Diablo, along main road, above main gate. Comment
  CAS-BOT-BC86641  Quercus douglasii R. Bacigalupi 1922-9-24 s.n. Contra Costa lower end of Mitchell Canyon Comment
  RSA476581  Quercus douglasii H. de Forest 1930-4-13 s.n. Contra Costa Road through N end Diablo Range. 915 Comment
  CAS-BOT-BC79606  Quercus durata Mary L. Bowerman 1932-10-16 1632 Contra Costa Mount Diablo. Donner Canyon Trail Comment
  CAS-BOT-BC94251  Quercus garryana Alice Eastwood 1923-5-4 11704 Contra Costa Mt. Diablo 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
  UC1748010  Quercus garryana E. Dean, M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 655 Contra Costa Fossil Ridge, just upslope of South Gate Rd., just W of Gibralter Rock, SE of Rock City Mount Diablo State Park 487 Comment
  CAS-BOT-BC94292  Quercus garryana Mary L. Bowerman 1935-11-30 3351 Contra Costa In draw SW of Gibraltar Rock, Fossil Ridge Comment
  JEPS111966  Quercus ilex D. G. Kelch 2005-5-13 05 .237 Contra Costa Martinez Martinez. South of oil refinery along Railroad tracks in fragment of habitat 28 Comment
  UC691314  Quercus kelloggii Mary L. Bowerman 1935-11-30 3354 Contra Costa w of Gibraltar Rock; Mount Diablo, Fossil Ridge Comment
  OBI22995  Quercus kelloggii Cathy Peterson 1971-11-6 8 Contra Costa Mount Diablo, south side, approx 35 yds from Rock City entrance 610 Comment
  UC848107  Quercus lobata Lewis S. Rose 1938-10-28 38306 Contra Costa 6 mi e Clayton; Marsh Creek 152 Comment
  UCD47071  Quercus palmeri J. M. Tucker 1981-4-25 4453 D Contra Costa California, Contra Costa County: Antonio Souza Ranch southwest of Byron (extended Section NW quarter Sec. 31, R3E, T1S, Mt. Diablo Meridian). 309 Comment
  UCD47073  Quercus palmeri J. M. Tucker 1981-5-31 4459 Contra Costa California, Contra Costa County: Antonio Souza Ranch southwest of Byron (extended Section NW quarter Sec. 31, R3E, T1S, Mt. Diablo Meridian). 309 Comment
  UCD84948  Quercus palmeri Chuck Hughes 2010-3-29 220 Contra Costa About 0.4 mile south of Vasco Road. 326 Comment
  UC2070466  Quercus parvula var. shrevei Barbara Ertter 2000-9-2 17523 Contra Costa Sobrante Ridge Preserve in hills southeast of El Sobrante, Manzanita Trail near Heavenly Ridge Trail junction. Comment
  CDA31191  Quercus wislizeni D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .228 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  UC1135852  Quercus wislizeni R. C. Wilson 1935-3-13 127 Contra Costa 1.5 mi w Cave Pt.; Mt. Diablo Quad. 563 Comment
  UC1135854  Quercus wislizeni R. C. Wilson 1935-3-28 154 Contra Costa Top of Mt. Diablo Mt. Diablo Quad. 1158 Comment
  UC1543000  Quercus wislizeni Donald G. Nelson 1938-11-6 586 Contra Costa about 1 mi beyond Marsh Creek Springs (road cut in Marsh Creek Highway, ne of Mt. Diablo) Comment
  UC1135920  Quercus wislizeni var. frutescens R. W. Lundh 1933-3-4 209 Contra Costa 0.5 mi n Pinehurst; Concord Quad. 304 Comment
  CAS-BOT-BC362446  Rafinesquia californica Volney Rattan 1887-5-22 s.n. Contra Costa Alhambra Val. Comment
  UC35844  Rafinesquia californica F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  UC691446  Rafinesquia californica Mary L. Bowerman 1930-6-14 327 Contra Costa little below summit Meridian Peak; Mount Diablo, little below summit of Meridian Peak Comment
  UC691453  Rafinesquia californica Mary L. Bowerman 1933-4-26 1910 Contra Costa n peak ridge e-se of peak Mount Diablo; n peak ridge e-se of peak of Mount Diablo 609 Comment
  CAS-BOT-BC362442  Rafinesquia californica Mary L. Bowerman 1931-4-25 764 Contra Costa Mount Diablo. Meridian Peak ca. 3 miles by road from summit Comment
  UC1819011  Rafinesquia californica Barbara Ertter, Mary Bowerman et al. 1995-5-7 14052 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, open oak forest above houses. 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
  UC2029176  Ranunculus aquatilis var. subrigidus Barbara Ertter with Alan Prather 2003-6-7 18190 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, pond NE of main trailhead. Comment
  CDA24309  Ranunculus californicus D. G. Kelch, A. G. Murdock 2005-4-15 5 .138 Contra Costa Rodeo Creek. Comment
  JEPS112058  Ranunculus californicus D. G. Kelch 2004-5-2 04 .161 Contra Costa Crockett - Edwards Canyon Edwards Canyon, Crockett, Contra Costa County, CA 125 Comment
  UC1126165  Ranunculus californicus R. C. Wilson 1935-3-14 135 Contra Costa Sycamore Creek Mt. Diablo Quadrangle (head) Comment
  UC549110  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
  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
  UC135556  Ranunculus canus var. canus Edward Lee Greene April, 1887 Contra Costa Antioch Comment
  UC9453  Ranunculus canus var. canus J. Burtt Davy 1895-4-7 915 Contra Costa Antioch Comment
  CDA922  Ranunculus hebecarpus D. G. Kelch 2006-5-4 6 .125 Contra Costa Carquinez Strait; Vaca Canyon, on North facing road cut/bank along Alhambra Valley Road. Comment
  JEPS112061  Ranunculus hebecarpus D. G. Kelch 2005-5-1 05 .183 Contra Costa Crockett - Edwards Canyon 150 Comment
  UC854399  Ranunculus hebecarpus Lewis S. Rose 1940-4-11 40180 Contra Costa 6 mi se Clayton; Marsh Creek 60 Comment
  SEINET7720851  Ranunculus hebecarpus Chesnut, Drew 1889-4-15 Contra Costa Martinez Comment
  JEPS112057  Ranunculus muricatus D. G. Kelch 2004-4-24 04 .96 Contra Costa Ca ada del Cierbo Upper Ca ada de Cierbo on fire road to cow barn along Cummings Skyway 70 Comment
  UC692200  Ranunculus muricatus Mary L. Bowerman 1938-5-25 3629 Contra Costa by North Road (on edge of stream); Mount Diablo, Arroyo del Cerro Comment
  UC2062687  Ranunculus occidentalis Barbara Ertter with David Gowen 2013-4-19 21317 Contra Costa Southwestern Mount Diablo State Park southeast of Walnut Creek, lower end of Little Yosemite Trail. Comment
  SD48397  Ranunculus occidentalis G. R. Campbell 1956-4-6 17 Contra Costa Between Round Top and summit of Mt. Diablo 305 Comment
  UC61031  Ranunculus orthorhynchus var. bloomeri N. L. Gardner 1904-2-17 Contra Costa Happy Valley Comment
  UC1795755  Ranunculus sceleratus Barbara Ertter, Kristin Ertter 1995-7-11 14485 Contra Costa West side of Mt Diablo SW of Walnut Creek; mudflat around inlet to Pine Pond. Comment
  UC1093860  Ranunculus sceleratus Herbert L. Mason 1937-6-21 11547 Contra Costa 0.5 mi from south end of Borden Highway (about 1.5 mi w of Byron) Comment
  RSA0027717  Raphanus raphanistrum Barbara Ertter, R. K. Brummitt 1998-5-13 16134 Contra Costa North Gate Road on west side of Mount Diablo, hairpin turn opposite Angel Kerley trailhead. 579 Comment
  CDA23557  Raphanus sativus D. G. Kelch 2008-3-3 8 .03 Contra Costa Carquinez Strait; Crockett. Under Zampa (Carquinez) Bridge. Comment
  CDA4905  Rhamnus alaternus Barbara Ertter, D. Gowen 2006-4-14 18667 Contra Costa Lime Ridge Open Space at northwest base of Mt. Diablo; north side of Ygnacio Valley Road near culvert for major draw at bend in road. 0 Comment
  UC1071553  Rhamnus californica N. French 1933-3-13 35 Contra Costa San Pablo, above Sheldon School San Francisco Quad. 91 Comment
  UC692600  Rhamnus californica Mary L. Bowerman 1935-6-21 3147 Contra Costa Arroyo del Cerro, e fork Mount Diablo 274 Comment
  UC692615  Rhamnus californica Mary L. Bowerman 1930-8-31 451 a Contra Costa e of Sloan place (Sloan Road); Mount Diablo, Inner Black Hills Comment
  SEINET13946276 Image available Rhamnus californica Charles M. Belshaw 1425 Contra Costa Sierra Nevada, Las Trampas Ridge; 400 ft alt. 122 Comment
  CDA9186  Rhamnus crocea Christopher Thayer 1995-6-5 s.n. Contra Costa Carquinez Strait; W of Pinole Peak. Comment
  CAS-BOT-BC59893  Rhamnus ilicifolia A. D. E. Elmer 1903-5-1 4326 Contra Costa Mount Diablo. Comment
  CAS-BOT-BC59897  Rhamnus ilicifolia H. E. McMinn 1922-6-2 90 Contra Costa N. slope of Mt. Diablo. Comment
  JEPS42024  Rhamnus ilicifolia W. L. Jepson 1920-9-6 9079 Contra Costa Donner Canyon Mt. Diablo Comment
  UC692594  Rhamnus tomentella subsp. tomentella Mary L. Bowerman 1932-11-19 1657 Contra Costa Lower Grapevine Spring, at head of spring Mount Diablo Comment
  UC692577  Rhus trilobata Mary L. Bowerman 1933-6-21 2328 Contra Costa Donner Canyon; Mount Diablo Comment
  UC692578  Rhus trilobata Mary L. Bowerman 1933-3-25 1776 Contra Costa Diablo Stock Farm (Stone Valley) Canyon; Mount Diablo Comment
  CAS-BOT-BC433093  Ribes H. E. McMinn 1925-1-1 s.n. Contra Costa Head of San Leandro Creek Comment
  CDA8368  Ribes californicum D. G. Kelch, A. G. Murdock 2005-1-16 5 .001 Contra Costa Carquinez Strait; Dutra fire road. Comment
  UC692215  Ribes californicum Mary L. Bowerman 1931-3-7 549 Contra Costa Meridian Peak summit Mount Diablo Comment
  CHSC20642  Ribes divaricatum Carol C. Getzinger 1964-4-26 51 Contra Costa Wildcat Canyon Road 1.3 miles from junction with Spruce Street and Grizzly Peak Boulevard. 152 Comment
  JEPS49338  Ribes malvaceum W. L. Jepson 1921-11-19 9514 Contra Costa halfway up to summit Mt. Diablo Comment
  UC1614322  Ribes malvaceum Charles M. Belshaw 1935-12-28 1422 Contra Costa Las Trampas Ridge, on trail above ranch house Las Trampas Ridge Comment
  RSA0021635  Ribes malvaceum J. T. Howell 1926-3-7 1667 Contra Costa Mt. Diablo. Comment
  UC2029050  Ribes malvaceum var. malvaceum Barbara Ertter with Linda Vorobik 2000-1-9 16887 Contra Costa Las Trampas Regional Wilderness in East Bay Hills west of Danville. Comment
  JEPS22439  Ribes menziesii Mary L. Bowerman 1930-6-10 314 Contra Costa summit Mt. Diablo Comment
  JEPS97608  Ribes menziesii R. D. Stone 1981-3-23 345 Contra Costa Huckleberry Trail Oakland Hills, near Alameda-Contra Costa county line (NE of intersection of Skyline Blvd. and Snake Rd.) 396 Comment
  UC1127445  Ribes menziesii H. S. Yates 1936-3-14 5364 Contra Costa 2 1/2 mi sw Round Valley; Mt. Diablo Quadrangle Comment
  UC691266  Ribes menziesii Charles Fakler 1944-8-4 3897 Contra Costa Juniper Camp area Mount Diablo Comment
  CAS-BOT-BC206015  Ribes menziesii Mary L. Bowerman 1931-4-19 739 Contra Costa Mount Diablo. Deer Flat Comment
  UC2029137  Ribes menziesii Barbara Ertter with Alan Prather 2003-6-7 18204 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, west end Stone Corral Trail south of Highland Ridge Trail junction. Comment
  JEPS77001  Ribes sanguineum var. glutinosum Robert M. Lloyd 1963-3-17 2132 Contra Costa 0.5 mi e Grizzly Peak Road (on Skyline Drive (across from 7090 Skyline Drive), Huckleberry trail); Huckleberry trail Comment
  JEPS97012  Ribes sanguineum var. glutinosum R. D. Stone 1981-1-31 334 Contra Costa Huckleberry Trail Oakland Hills, near Alameda-Contra Costa county line (NE of intersection of Skyline Blvd. and Snake Rd.) Comment
  CAS-BOT-BC362960  Rigiopappus leptocladus Mary L. Bowerman 1933-5-8 2016 Contra Costa Mount Diablo. Fossil Ridge near crest, on north side by side road Comment
  JEPS100113  Robinia pseudoacacia A. Langston 2003-8-26 AL 83 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC24540  Romanzoffia californica H. N. Bolander 1866-1 6280 Contra Costa Mt. 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
  CDA28956  Rorippa palustris subsp. occidentalis D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .249 Contra Costa CA Delta; Along the old San Joaquin River Channel, S of Clifton Court Forebay and SE of Byron. Comment
  CAS-BOT-BC147408  Rosa californica L. R. Abrams 1916-6-30 5710 Contra Costa Mt. Diablo Comment
  SEINET10543521  Rosa californica Walter H. Lewis, Barbara J. Ertter 2005-2-8 Lewis 15910 Contra Costa Marsh Creek Rd at Power Line Crossover, north foot of Mt. Diablo by Marsh Creek; large colony along creek, open live oak woods. Comment
  UC136538  Rosa californica Katharine Brandegee 1907-7-4 Contra Costa marsh between Martinez and Port Costa Comment
  UC1789172  Rosa eglanteria Barbara Ertter 2001-11-3 17812 Contra Costa Tilden Regional Park, Selby Trail ca. 1/4 miles north of Lake Anza Comment
  CAS-BOT-BC148107  Rosa gymnocarpa John Thomas Howell 1925-9-27 1485 Contra Costa San Leandro Canyon, Oakland Hills Comment
  CDA23621  Rosa gymnocarpa D. G. Kelch, D. A. Weinstein 2008-4-15 8 .046 Contra Costa Carquinez Strait; S Port Costa along Mckewen Rd. Comment
  JEPS102898  Rosa spithamea Barbara Ertter, Brad Olson 1997-11-1 15878 Contra Costa Knobcone Point Road E of Balancing Rock Mount Diablo 548 Comment
  CAS-BOT-BC158775  Rubus ursinus Alice Eastwood 1915-5-30 4448 Contra Costa Mt. Diablo Comment
  UC12995  Rubus ursinus W. H. Brewer 1862-4-30 1013 Contra Costa Camp 69 Walnut Creek (Walnut Creek) Comment
  JEPS99966  Rumex acetosella G. Smick 2003-5-6 GAS 175 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC421865  Rumex acetosella Mary L. Bowerman 1935-5-18 3016 Contra Costa Mount Diablo. Road above Indian Ceremonial Spring: Roadbank at hairpin turn. Comment
  JEPS99578  Rumex conglomeratus Mary Bowerman 1995-6-4 Contra Costa Mount Diablo, Pine Pond Comment
  UC1618384  Rumex conglomeratus Barbara Ertter, Diane Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10698 Contra Costa opposite of Pittsburg Marina (in center of w end of Browns Island n of Pittsburg near confluence of Sacramento and San Joaquin Rivers); Browns Island Comment
  CAS-BOT-BC421737  Rumex conglomeratus Irja Knight; W. Knight 1977-5-22 s.n. Contra Costa Antioch Dunes. Comment
  CAS-BOT-BC421739  Rumex conglomeratus Walter Knight 1965-9-7 1176 Contra Costa Antioch sand dunes. Comment
  JEPS99969  Rumex crispus A. Langston 2003-6-23 AL 55 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC421624  Rumex crispus W. Knight; I. Knight 1977-5-22 s.n. Contra Costa Antioch Dunes. Comment
  JEPS112017  Rumex pulcher Dean G. Kelch and Andrew G. Murdock 2004-5-28 AGM 267 Contra Costa Refugio Valley. 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
  CDA15232  Rumex salicifolius var. crassus G. F. Hrusa, D. Crowe 1998-5-8 14361 Contra Costa Sacramento Delta; E end of Dow Chemical property at Pittsburg. Comment
  JEPS21987  Rupertia physodes G. Thomas Robbins 1958-5-4 3823 Contra Costa along Pinehurst Road on slopes above Upper San Leandro Reservoir (in hills e of Oakland) 228 Comment
  UC1129908  Rupertia physodes C. M. Belshaw 1936-5-13 2116 Contra Costa Marsh Ck.-Livermore Road 1/2 mi nw Summit; Mt. Diablo Quadrangle Comment
  UC1613949  Rupertia physodes Charles M. Belshaw 1935-6-24 1030 Contra Costa Sobrante Hills Comment
  CAS-BOT-BC445700  Sagittaria latifolia Vincent Jones 1920-8-29 s.n. Contra Costa Orwood Comment
  SEINET11268191  Salicornia europaea Barbara Ertter 1990-9-30 9656 Contra Costa Point Pinole Regional Shoreline, edge of sparina marsh at edge of salicornia marsh on SW corner of park; edge of San Pablo Bay.; 0 Comment
  UC69365  Salix Wm. W. Mott 1905-1-10 Contra Costa near Berkeley (n.e. corner of San Pablo Ave. & McAvoy Lane, opposite 7 Mile House) Comment
  CAS-BOT-BC129913  Salix bonplandiana J. Burtt Davy 1895-4-13 1005 Contra Costa Near Lafayette. Comment
  CDA15248  Salix laevigata G. F. Hrusa, D. Crowe 1998-5-8 14379 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. 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
  POM167375  Salix laevigata W. C. Blasdale 1896-2-29 s.n. Contra Costa Clayton. Comment
  LA208679  Salix laevigata Joseph Andorfer Ewan; 1933-10-15 8034 Contra Costa Mount Diablo, Indian Ceremonial Apr Comment
  JEPS75492  Salix lasiolepis P. F. Yorks 1975-12-17 502 Contra Costa n of Briones Reservoir (ca. 1 km s of Bear Creek Rd. on Hampton Rd.); Hampton Road Natural Reserve 170 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-BC129596  Salix lasiolepis var. lasiolepis Mary L. Bowerman 1933-3-25 1777 Contra Costa Emmons Canyon, back of Diablo Stock Farm, Stone Valley - Mount Diablo 274 Comment
  UC1607511  Salpichroa origanifolia Barbara Ertter 1991-5-12 9818 Contra Costa Point Isabel Regional Shoreline in SW corner of El Cerrito, on San Francisco Bay Comment
  JEPS111804  Salsola soda D. G. Kelch 2004-4-26 04 .136 Contra Costa Point Pinole 3 Comment
  UCR263552  Salsola soda Barbara Ertter 1990-9-30 9659 Contra Costa San Francisco Bay Region, Point Pinole Regional Shoreline on San Pablo Bay, north Richmond; on N edge of park 2 Comment
  RSA739938  Salsola tragus P. Akers 2003-10-7 B- 107 Contra Costa Contra Costa water district, E edge of Discovery Bay on Hwy 4. 8 Comment
  UC41510  Salsola tragus L. L. Guss 1900-6-1 Contra Costa 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
  UC25708  Salvia columbariae W. L. Jepson May 23 1894-May 24 1894 Contra Costa Mt. Diablo; Mount Diablo Region 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-BC233289  Salvia mellifera D. E. Breedlove 1970-4-18 17448 Contra Costa At the north edge of Lafayette above Laurel Drive 243 Comment
  JEPS62759  Salvia mellifera W. L. Jepson 1921-11-19 9517 Contra Costa Mt. Diablo Comment
  UC75018  Salvia mellifera unknown 1903-4-28 2945 Contra Costa Mitchell Canyon; Mt. Diablo Comment
  UC883961  Salvia mellifera Lewis S. Rose 1941-3-22 41057 Contra Costa w slope Mt. Diablo 609 Comment
  UCSB5807  Salvia mellifera Kamb, Peter; Chisaki, Francia 1950-3-18 Contra Costa Black Hills; S. of Mt. Diablo; on south road to Mt. Diablo; from Danville 365 Comment
  JEPS75505  Sambucus mexicana P. F. Yorks 1975-5-3 422 Contra Costa on Hampton Rd. ca 1.7 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  UCR16102  Sambucus mexicana Rex Sanders 1973-5-22 s.n. Contra Costa San Francisco Bay Region, El Sobrante, wash crossing Valley View Rd. at corner with Jo-Lin Ct. 45 Comment
  CAS-BOT-BC223245  Sanicula bipinnata Alice Eastwood 1914-3-14 5792 Contra Costa Byron Springs Comment
  JEPS111603  Sanicula bipinnatifida D. G. Kelch 2003-3-21 03 .50 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  UC2062644  Sanicula bipinnatifida Barbara Ertter with Dan Norris 2001-4-8 17588 Contra Costa Lime Ridge Open Space east of Walnut Creek. 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
  UC1022486  Sanicula crassicaulis C. Ritchie Bell 1953-4-1 3 X504 Contra Costa Mount Diablo, at Canyon Nook Campsite Mount Diablo; , Canyon Nook Campsite Comment
  UC2032846  Sanicula crassicaulis Doran, Andrew Scott 2012-3-20 717 Contra Costa Southern part of Brooks Island, old quarry near gravel conveyer belt and grind house. Comment
  UC536009  Sanicula crassicaulis Laurence S. Jones 1934-4-8 55 Contra Costa Mount Diablo approximately 3 mi surface distance from peak Mount Diablo 609 Comment
  SBBG122982  Sanicula saxatilis B. Ertter et al. 1991-4-7 9728 Contra Costa Eagle Pk on Mt Diablo Comment
  UC691878  Sanicula saxatilis Mary L. Bowerman 1935-5-18 3025 Contra Costa Mount Diablo, across the road from and a little east of the parking area Mount Diablo 1066 Comment
  UC691880  Sanicula saxatilis J. T. Howell 1942-5-24 16969 Contra Costa Mount Diablo, Eagle Point Mount Diablo; , Eagle Point Comment
  RSA471491  Sanicula tuberosa Brandegee 1884-05 s.n. Contra Costa Antioch Comment
  SEINET3819166 Image available Saxifraga virginiensis var. californica Lewis S. Rose 1932-3-26 32108 Contra Costa Nortonville. Comment
  SEINET3840825  Scabiosa atropurpurea Unknown 2006-6-23 6 .322 Contra Costa West Valona, West of Zampa Bridge above San Pablo avenue, along small stream draining north into the Western end of the Carquinez Strait 91 Comment
  UCD128067  Scandix pecten-veneris Morris Halperin 1929-4-21 s.n. Contra Costa Morago Valley. Comment
  UCD151158  Schedonorus arundinaceus James A. Neilson Jr. 1972-11-2 3552 Contra Costa Walnut Creek drainage at State Highway 4. Elevation estimated using Google Earth by label maker. 1 Comment
  CAS-BOT-BC111379  Schoenoplectus acutus var. occidentalis LeRoy Abrams 1916-7-29 6304 Contra Costa Martinez Comment
  CAS-BOT-BC111377  Schoenoplectus acutus var. occidentalis John Thomas Howell; Gordon H. True 1972-6-29 48937 Contra Costa Wet soil or shallow water along ditches on Bryon Hot Springs Road SE of Byron. Comment
  UCD50093  Schoenoplectus americanus Walter Kinght 1977-6-10 s.n. Contra Costa Sand Creek near coal-mining site of Stewartville, Contra Costa Co. 158 Comment
  CAS-BOT-BC111463  Schoenoplectus californicus Walter Knight; Irja Knight 1977-5-22 s.n. Contra Costa Growing at site of little corral. Antioch Dunes. Comment
  CAS-BOT-BC111830  Schoenoplectus tabernaemontani Virginia I. Dains; Walter Knight 1986-8-8 5458 Contra Costa Lct Rock S1 & Werner Cut. Comment
  JEPS46490  Scirpus W. L. Jepson 1919-1-5 8201 Contra Costa Antioch San Joaquin River (on beach) Comment
  CDA15247  Scirpus acutus var. occidentalis G. F. Hrusa, D. Crowe 1998-5-8 14378 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Comment
  CDA39108  Scirpus californicus T. C. Fuller 1964-11-6 12808 Contra Costa Northeast side of Bethel Island. 0 Comment
  UC971682  Scirpus maritimus Leo Koch 1940-6-5 1004 a Contra Costa near highway saline flat two mi s San Rafael ferry dock; s of San Rafael ferry dock Comment
Read comments Apr 14 2009
  CAS-BOT-BC110869  Scirpus microcarpus Miss Mary Leolin Bowerman 1942-10-4 3851 Contra Costa Russelman Park Road 243 Comment
  SEINET3153355  Scutellaria tuberosa L. S. Rose 1940-4-30 40250 Contra Costa Marsh Creek, 4 mi. E of Clayton 91 Comment
  CAS-BOT-BC417826  Sedella pentandra John Thomas Howell 1941-4-6 16182 Contra Costa Near Deer Flat, Mt. Diablo Comment
  CAS-BOT-BC59075  Sedum spathulifolium Mrs. C. E. Sutcliffe 1920-5-30 s.n. Contra Costa Mt. Diablo. Comment
  CAS-BOT-BC363289  Senecio aronicoides Alice Eastwood 1915-5-30 4535 Contra Costa Mt. Diablo Comment
  UC35929  Senecio aronicoides F. T. Bioletti 1894-5-13 Contra Costa Mount Diablo Comment
  UC691356  Senecio aronicoides Mary L. Bowerman 1933-5-22 2166 Contra Costa Mount Diablo , Inner Black Hills (near crest, Inner Black Hills) Comment
  CAS-BOT-BC327444  Senecio flaccidus var. douglasii Walter Knight 1965-3-1 s.n. Contra Costa Overlooking Carquinez Straits Comment
  UC1948955  Senecio glomeratus William J. Ferlatte, L. Maynard Moe 1970-4-27 1266 Contra Costa San Francisco Bay: Red Rock Island Comment
  CDA18812  Senecio mikanioides R. M. Case 1999-12-2 PDR 1219291 Contra Costa Along Wildcat Canyon Rd., 1.9 mi NW of intersection of Wildcat Canyon Rd. and Dam Rd., vicinity of Orinda. 0 Comment
  JEPS37621  Senecio sylvaticus W. L. Jepson 1921-5-22 9201 Contra Costa Mt. Diablo, summit Mt. Diablo 1173 Comment
  UC2032832  Senecio sylvaticus Doran, Andrew Scott 2012-3-20 702 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  UC335828  Senecio triangularis unknown Contra Costa near Mt. Diablo; near Mt. Diablo Comment
Read comments Feb 11 2013
  JEPS100173  Senecio vulgaris G. Smick 2003-3-25 GAS 84 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC80265  Sequoia sempervirens John Thomas Howell 1925-10-11 1500 Contra Costa Moraga Ridge, Oakland Hills Comment
  JEPS88722  Sequoia sempervirens W. L. Jepson 1894-10-1 Contra Costa Redwood Peak Oakland Hills, Redwood Peak Comment
  SEINET13289876 Image available Sequoia sempervirens L. S. Rose 1934-1 Contra Costa Redwood Canyon Comment
  CDA23919  Sesuvium verrucosum D. G. Kelch 2006-7-14 6 .329 Contra Costa Carquinez Strait; Along Marine Vista Ave immmediately west of Pacheco Slough. East of Martinez. Comment
  UC1819035  Sherardia arvensis Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14243 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
  POM61913  Sidalcea diploscypha A. D. E. Elmer 1903-05 4316 Contra Costa Walnut Creek. Comment
  UC18898  Sidalcea malviflora subsp. laciniata W. H. Brewer 1862-4-30 1002 Contra Costa Camp 69 Walnut Creek, Camp 69 Comment
  UC2032814 Image available Sidalcea malviflora subsp. laciniata Doran, Andrew Scott 2012-3-20 684 Contra Costa North end of Brooks Island along ridge, cleared area northwest of caretakers residence. Comment
  UC72569  Silene antirrhina Chesnut and Drew 1889-4-16 Contra Costa Clayton Comment
  UC692409  Silene californica Mary L. Bowerman 1931-5-19 874 Contra Costa e-facing flank of main e branch Donner Canyon (Mount Diablo); , Donner Canyon Comment
  UC1948957  Silene gallica William J. Ferlatte, L. Maynard Moe 1970-4-27 1254 Contra Costa San Francisco Bay: Red Rock Island 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
  UC8497  Silene verecunda subsp. platyota Edw. L. Greene 1892-6-20 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC75281  Sisymbrium officinale Mary L. Bowerman 1935-5-1 2939 Contra Costa Mount Diablo. West road 2 miles from entrance, across the creek. Comment
  CDA39475  Sisyrinchium bellum A. G. Murdock 2004-3-19 220 Contra Costa Carquinez Strait Region; Luzon. Sycamore Avenue just east of Rodeo/Hercules where train crosses Highway 4 (Luzon). Comment
  UC2028288  Sisyrinchium bellum Barbara Ertter 1998-6-20 16232 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Alkali Pond at Wiget Lane entrance. Comment
  CDA37907  Solanum americanum D. G. Kelch, Mike Perlmutter 2011-9-23 11 .762 Contra Costa Antioch. Dow Wetlands. Comment
  UC691761  Solanum americanum Mary L. Bowerman 1931-8-29 1029 Contra Costa Mount Diablo, Sheep Camp Spring, by west road Sheep Camp Spring; Mount Diablo, Sheep Camp Spring Comment
  CDA14345  Solanum aviculare R. Fonseca 1995-4-27 s.n. Contra Costa 1373 Elizabeth Court, Walnut Creek. 0 Comment
  NY820647  Solanum umbelliferum A. A. Heller 1908-4-16 8889 Contra Costa Sand hills east of Antioch 23 Comment
  UCD38575  Solanum umbelliferum Beecher Crampton 1956-5-14 3398 Contra Costa Headwaters of Marsh Creek, southeastern of Mt. Diablo. 640 Comment
  CAS-BOT-BC156306  Solanum umbelliferum anonymous 1900-3-26 s.n. Contra Costa Oakley. 6 m. E. of Antioch Comment
  CAS-BOT-BC231713  Solanum umbelliferum Paul F. Covel 1940-5-12 s.n. Contra Costa Summit, Mt. Diablo Comment
  POM215197  Solanum umbelliferum D. D. Keck 1933-11-2 2619 Contra Costa 1 mile SE of Oakley. Comment
  RSA29619  Solanum umbelliferum Joseph A. Ewan 1934-1-14 8163 Contra Costa Near west rim of Wildcat Creek, back of Berkeley. Comment
  UCD15025  Solanum umbelliferum Jennifer Roth 1979-4-13 11 Contra Costa Clayton, CA, Concord Mt. Diablo Trail Ride Assoc. grounds, Russelman Park Road off Marsh Creek Road. 396 Comment
  CAS-BOT-BC364902  Solidago velutina subsp. californica John Thomas Howell 1925-10-20 1525 Contra Costa Moraga Ridge Comment
  UC691808  Solidago velutina subsp. californica Mary L. Bowerman 1930-8-24 434 Contra Costa Mitchell Canyon , Mitchell Canyon (Mount Diablo) Comment
  JEPS100170  Soliva sessilis G. Smick 2003-4-8 GAS 123 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC650555  Sonchus oleraceus Ira L. Wiggins 1930-4-18 4608 Contra Costa Jersey Island Comment
  UC691778  Sonchus oleraceus Mary L. Bowerman 1930-8-24 416 Contra Costa Mitchell Canyon , Mitchell Canyon (Mount Diablo) Comment
  CAS-BOT-BC374593  Sonchus oleraceus Walter Knight; Irja Knight; J. T. Howell; E. McClintock; et al 1978-9-5 3225 Contra Costa Browns Island. Sandy Knob Comment
  CAS-BOT-BC236609  Spartina foliosa Evelina Cannon 1900-9-17 s.n. Contra Costa Giant Station Comment
  UCD92971  Spartina foliosa A. A. Beetle 1940-11-1 2636 Contra Costa San Francisco Bay, near Point Richmond. Comment
  UCD93010  Spartina patens Rolf Mall 1964-11-19 s.n. Contra Costa at head of Suisun Bay between Benecia and Vallejo. 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
  UC1948951  Spergula arvensis William J. Ferlatte, L. Maynard Moe 1970-4-27 1256 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC2032829  Spergula arvensis Doran, Andrew Scott 2012-3-20 699 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  UC1818860  Spergula arvensis subsp. arvensis Barbara Ertter, Kristin Ertter 1995-7-11 14467 Contra Costa Diablo Foothills Regional Park, dried road bed at base of east-facing cliff. 121 Comment
  UC2028042  Spergula arvensis subsp. arvensis Barbara Ertter 1998-3-1 15925 Contra Costa Diablo Foothills Regional Park, Ridge Trail on ridge east of Old Borges Ranch. Comment
  CAS-BOT-BC390055  Spergularia Alice Eastwood 1923-4-28 11664 Contra Costa Byron Springs Comment
  UC1618227  Spergularia macrotheca Barbara Ertter 1990-10-14 9661 Contra Costa Point Isabel Regional Shoreline San Francisco Bay, El Cerrito (w shoreline, sw El Cerrito) Comment
  CDA9448  Spergularia macrotheca var. longistyla D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .226 Contra Costa Byron Airport. Comment
  UC1950245  Spergularia macrotheca var. longistyla Barbara Ertter 1992-3-8 10907 Contra Costa Byron Springs Road 4-5 miles south of junction with J4, near Armstrong Road Comment
  UC1618134  Spergularia macrotheca var. macrotheca Barbara Ertter 1994-6-18 12836 Contra Costa at se corner of Whittell Marsh (at n end of Richmond, Point Pinole Regional Shoreline); Richmond, Point Pinole Regional Shoreline Comment
  CDA24135  Spergularia marina D. G. Kelch 2006-7-14 6 .328 Contra Costa Carquinez Strait; Along Marine Vista Ave immmediately west of Pacheco Slough. East of Martinez. Comment
  RSA0098553  Spergularia marina J. M. Tucker 1963-4-12 3687 Contra Costa On west side of Holey Road, 3 miles southeast of Byron. Comment
  JEPS100086  Spergularia rubra A. Langston 2003-9-16 AL 87 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2027744  Spergularia rubra Barbara Ertter 1997-1-5 15436 Contra Costa Lime Ridge Open Space on northwest side of Mount Diablo, section on north side of Ygnacio Valley Road. Comment
  CHSC23016  Spergularia salina Robert A. Schlising 1962-4-7 2141 Contra Costa Coast Ranges. Field along Deer Valley Road, few mi S of Antioch. 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
  CDA22505  Stachys ajugoides var. rigida D. G. Kelch, D. A. Weinstein 2008-4-25 8 .077 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
  CDA29000  Stachys ajugoides var. rigida D. G. Kelch 2006-5-7 6 .16 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  JEPS112462  Stachys ajugoides var. rigida D. G. Kelch 2004-4-11 04 .57 Contra Costa Crockett - 5th St. Prairie 85 Comment
  UC1948946  Stachys ajugoides var. rigida William J. Ferlatte, L. Maynard Moe 1970-4-27 1224 Contra Costa San Francisco Bay: Red Rock Island Comment
  RSA762305  Stachys ajugoides var. rigida William J. Ferlatte, L. M. Moe 1970-4-27 1224 Contra Costa San Francisco Bay, Red Rock Island. Comment
  JEPS107110  Stachys pycnantha Barbara Ertter, Kristin Ertter 1995-7-11 14484 Contra Costa West side of Mt Diablo SW of Walnut Creek; dense growth at lower end of Pine Pond, in sun. 182 Comment
  UC2055618  Stachys pycnantha Joseph Andorfer Ewan 1933-10-15 8035 Contra Costa SW slope Mt. Diablo. 1066 Comment
  UC2055620  Stachys pycnantha Joseph Andorfer Ewan 1933-10-15 8043 Contra Costa 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
  CHSC21609  Stellaria media Willis Ball 1975-2-23 443 Contra Costa Contra Loma Regional Park. In area #1. Ca. 150 yds w of main parking lot. 30 Comment
  CAS-BOT-BC393981  Stellaria nitens Alice Eastwood 1914-3-14 3767 Contra Costa Byron Springs Comment
  UC2027739  Stellaria pallida Barbara Ertter 1997-1-5 15444 Contra Costa Lime Ridge Open Space on northwest side of Mount Diablo, section on north side of Ygnacio Valley Road. Comment
  UC2028153  Stellaria pallida Barbara Ertter 1998-4-4 15958 Contra Costa Shell Ridge Open Space northwest of Mount Diablo. Comment
  UC2028464  Stenotaphrum secundatum Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15669 Contra Costa Martinez Regional Shoreline, south edge of Carquinez Strait Comment
  CAS-BOT-BC375205  Stephanomeria elata John Thomas Howell 1925-11-1 1544 Contra Costa Moraga Ridge, Oakland Hills Comment
  UC2028016  Stephanomeria elata Barbara Ertter 1997-9-14 15819 Contra Costa Southwest side of Mount Diablo, Wall Point Road on open sandstone ridge northwest of Wall Point/ Comment
  UC2028250  Stephanomeria elata Barbara Ertter, Mary Bowerman, Lisa Schultheis 1998-8-21 16399 Contra Costa South side of Mount Diablo, South Gate Road 0.8 miles below entry kiosk. Comment
  UCD150892  Stephanomeria virgata James A. Neilson Jr.; Samuel A Bamberg 1975-10-22 3492 Contra Costa Walnut Creek drainage at State Highway 4. Elevation estimated using Google Earth by label maker. 1 Comment
  UC589838  Stephanomeria virgata subsp. pleurocarpa G. L. Stebbins Jr. 1938-7-30 2541 Contra Costa 0.5 mi e Marsh Creek Springs (along Marsh Creek Highway) 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
  HSC13371  Stipa pulchra Greg Bos 1963-4-28 94 Contra Costa Pinole hills overlooking San Pablo Bay 46 Comment
  SACT002407  Stipa setigera P. Kennedy 1914-3-15 Contra Costa Comment
  JEPS20857  Streptanthus albidus W. L. Jepson 1899-4-19 13408 Contra Costa Las Trampas Ridge 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
  RSA26397  Streptanthus hispidus J. T. Howell 1941-4-6 s.n. Contra Costa Ridge east of Deer Park, Mt. Diablo Comment
  UC10888  Streptanthus hispidus H. N. Bolander 1866-1 6267 Contra Costa Monte Diablo Comment
  UCD116027  Streptanthus hispidus Botany 102 Student 1974-4-13 s.n. Contra Costa Marsh Creek Road, near trail Ride ASSO, north peak of Mt. Diablo. 762 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
  UC2062677  Stuckenia striata Barbara Ertter 2005-8-15 18624 Contra Costa Antioch/Oakley Regional Shoreline, under south end of Antioch Bridge between Antioch and Oakley. Comment
  CAS-BOT-BC422910  Stylomecon heterophylla John Thomas Howell 1933-5-14 11269 Contra Costa Hills east of St. Mary's College Comment
  JEPS65176  Stylomecon heterophylla L. R. Heckard 1971-4-15 2491 Contra Costa ca 1/2 mi e Patterson Pass; e of Patterson Pass 457 Comment
  UC112847  Stylomecon heterophylla T. S. Brandegee 1908-4-10 Contra Costa near Antioch; near Antioch 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
  UC767113  Stylomecon heterophylla R. F. Hoover 1938-5-4 3341 Contra Costa Marsh Creek Canyon Comment
  UC1238003  Suaeda moquinii John H. Weiler 1961-4-9 6173 Contra Costa 3 mi s Byron (e side of road) Comment
  SEINET4172257  Suaeda nigra J. B. Davy s.n. Contra Costa Mount Diablo, Sivermore Pass Comment
  CAS-BOT-BC269562  Symphoricarpos albus var. laevigatus V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Val. Comment
  JEPS100085  Symphoricarpos albus var. laevigatus A. Langston 2003-7-24 AL 71 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC691623  Symphoricarpos albus var. laevigatus Mary L. Bowerman 1930-8-24 419 Contra Costa Mitchell Canyon Mount Diablo (a little above end of road) Comment
  CAS-BOT-BC269559  Symphoricarpos albus var. laevigatus Wosnessensky 1841-4-1 s.n. Contra Costa Unspecified Comment
  JEPS111776  Symphoricarpos mollis D. G. Kelch 2005-5-1 05 .181 Contra Costa Crockett - Edwards Canyon 150 Comment
  UC2043054  Symphyotrichum lanceolatum var. hesperium Barbara Ertter with Brad Olson 1991-9-28 10851 Contra Costa S end San Pablo Reservoir between Orinda and El Sobrante. Comment
  CAS-BOT-BC98039  Symphyotrichum lentum L. R. Abrams 1917-9-24 6860 Contra Costa Near Concord Comment
  UC1422530  Symphyotrichum lentum Alice Q. Howard and W. R. Powell 1977-6-1 38 Contra Costa Antioch Dunes, within PG&E-owned strip under eastern power line Comment
  UC1735313  Symphyotrichum subspicatum J. C. Semple, B. A. Suripto, T. Ahmed 1990-8-16 9342 Contra Costa Charles Tilden Regional Park, Vollmer Peak, mid elevation Comment
  UC2027883  Symphyotrichum subulatum Barbara Ertter with Chris Thayer 1996-10-25 15368 Contra Costa Northwest flank of Mount Diablo, east end Northgate Trail from North Gate Road to Diablo Foothills Regional Park. Comment
  CAS-BOT-BC98331  Symphyotrichum subulatum var. parviflorum Walter Knight 1978-8-27 3196 Contra Costa Contra Loma Regional Park, at reservoir's edge. Comment
  CDA37133  Tamarix parviflora Wil Schaub 2012-4-19 PDR# 1641195 Contra Costa Lafayette; 3954 Las Arabis Drive. 0 Comment
  UC19168  Tamarix parviflora J. Burtt Davy 1895-4-13 1013 Contra Costa Lafayette Comment
  CDA37268  Taraxia ovata D. G. Kelch 2011-3-31 11 .068 Contra Costa Carquinez Strait Region; Richmond, near Point Pinole Regional Park. Comment
  UC1555368  Taraxia ovata Jerry Powell 1988-2-18 1525 Contra Costa Point Molate west Richmond Comment
  UC1618308  Tauschia hartwegii Barbara Ertter with Travis Columbus 1990-6-10 9106 Contra Costa ne corner Briones Regional Park (e-facing steep hillside above junction of Spengler and Blue Oak trails, Briones Hills, w of Pleasant Hill); ne corner of Briones Regional Park, Briones Hills 274 Comment
  UC21430  Tauschia hartwegii Edw. L. Greene 1892-6-20 Contra Costa Mt. Diablo Comment
  UC1784914  Tetrapteron graciliflorum Barbara Ertter 1992-11-1 11457 Contra Costa Skyline Trail E of Grizzly Peak Boulevard in Berkeley Hills, ca. 1/2 mi S of Tilden Park Miniature Train Station Comment
  RSA146152  Thinopyrum ponticum T. C. Fuller 1961-9-13 7001 Contra Costa Hwy J4, ca. 4 mi. s.e. of Byron Comment
  CAS-BOT-BC88260  Thysanocarpus curvipes Lewis S. Rose 1933-4-17 33096 Contra Costa Antioch. Comment
  UC11026  Thysanocarpus curvipes J. Burtt Davy 1895-4-7 886 Contra Costa Antioch Comment
  UC11035  Thysanocarpus curvipes T. S. Brandegee 1890-1 Contra Costa Antioch Comment
  CAS-BOT-BC88246  Thysanocarpus curvipes Alice Eastwood 1914-2-24 3737 Contra Costa Anticoch. Comment
  CAS-BOT-BC88261  Thysanocarpus curvipes Paul F. Covel 1936-4-19 210 Contra Costa Las Trampas (Cashion) Canyon. Comment
  JEPS108219  Thysanocarpus radians David Gowen 2005-4-30 272 Contra Costa Morgan Territory Regional Preserve. Just east and outside the park along Manzanita Trail. Growing on very rocky east facing slope. Comment
  JEPS111629  Torilis nodosa D. G. Kelch 2005-5-1 05 .201 Contra Costa Crockett - Edwards Canyon 100 Comment
  UC692376  Torilis nodosa Mary L. Bowerman 1930-6-3 230 Contra Costa North road 1.9 miles from entrance 167 Comment
  JEPS63921  Toxicodendron diversilobum W. L. Jepson 1922-5-15 9643 Contra Costa N. Berkeley Hills Comment
  RSA122517  Toxicodendron diversilobum R. W. Lundh 1932-9-22 169 Contra Costa 1/2 mile southwest of Mt Diablo 915 Comment
  UC692580  Toxicodendron diversilobum Mary L. Bowerman 1942-5-24 3845 Contra Costa W. Fork Sycamore Creek (Madrone Canyon) below Rock City Camp; Mt. Diablo, Madrone Canyon, W. Fork Sycamore Creek Comment
  UC2025092  Toxicoscordion fremontii Fayla Schwartz 1990-3-19 116 Contra Costa Contra Costa Co.: 1.5 miles up Diablo Scenic Blvd. from entrance to Mt. Diablo State Park. Comment
  UC2028405  Tragopogon porrifolius Barbara Ertter with Richard K. Brummitt 1998-5-16 16083 Contra Costa Lower Donner Canyon on north base of Mount Diablo, near Donner Cabin site Comment
  UC570718  Trichostema lanceolatum Herbert L. Mason 1923-11-12 854 Contra Costa Mount Diablo, middle slopes Comment
  UC1129956  Trifolium albopurpureum var. albopurpureum C. M. Belshaw 1936-5-8 2056 Contra Costa Mt. Diablo Mt. Diablo Quadrangle 990 Comment
  UC555481  Trifolium albopurpureum var. albopurpureum H. L. Mason 1928-4-26 4384 Contra Costa Berkeley-Oakland hills Comment
  UC2028169  Trifolium albopurpureum var. albopurpureum Barbara Ertter 1998-5-3 16074 Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, near Wall Point. Comment
  UC147749  Trifolium albopurpureum var. dichotomum Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  UC630753  Trifolium albopurpureum var. dichotomum Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  UC631264  Trifolium albopurpureum var. olivaceum Mrs. Brandegee May 1907 Contra Costa Antioch Comment
  UC630759  Trifolium albopurpureum var. olivaceum P. B. Kennedy 1925-4-26 Contra Costa above old rd to reservoir; Mt. Diablo Comment
  CDA29497  Trifolium bifidum D. G. Kelch, Troy MacGregor 2009-5-1 9 .273 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  UC2070438  Trifolium bifidum Barbara Ertter with Dan Norris 2001-4-8 17591 Contra Costa Lime Ridge Open Space east of Walnut Creek, path northwest of summit installation. Comment
  UC1818894  Trifolium bifidum var. bifidum Barbara Ertter, Mary Bowerman et al. 1995-5-7 14066 Contra Costa Three-Springs Creek, small serpentine patch at road junction, Comment
  UC692247  Trifolium bifidum var. decipiens Mary L. Bowerman 1931-4-5 681 Contra Costa s Russelman Park; Mount Diablo 381 Comment
  RSA0068487  Trifolium bifidum var. decipiens Katie Gallagher, Nick Jensen 2014-4-26 187 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  UC2027805  Trifolium bifidum var. decipiens Barbara Ertter with Holly Forbes 1997-4-20 15551 Contra Costa North base of Mount Diablo, roadside on trail to Back Creek from Mitchell Canyon trailhead. Comment
  UC400158  Trifolium ciliolatum Ynes Mexia 1929-4-21 2373 Contra Costa Moraga Valley Comment
Read comments Aug 31 2007
  UC555456  Trifolium ciliolatum H. L. Mason 1929-4-25 5204 Contra Costa Marsh Creek Rd Comment
  POM194646  Trifolium ciliolatum Ynez Mexia 2373 Contra Costa Moraga Valley Comment
  UC1818906  Trifolium ciliolatum Barbara Ertter, Chris Thayer 1995-4-25 13988 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Devil's Slide area of Sycamore Canyon, roadside thru chaparral zone. 304 Comment
  UC165575  Trifolium depauperatum var. amplectens J. Burtt Davy Apr 7-8 1895 944 Contra Costa Antioch Comment
  UC692648  Trifolium depauperatum var. amplectens Mary L. Bowerman 1935-4-12 2815 Contra Costa 2 mi from entrance (w rd); Mount Diablo 259 Comment
  RSA349410  Trifolium depauperatum var. amplectens L. S. Rose 1941-3-27 41068 Contra Costa 2 mi. w. of Byron 61 Comment
  RSA537536  Trifolium depauperatum var. amplectens Barbara Ertter, Jim Jokerst, Dave Magney 1989-4-5 8134 Contra Costa Alkali sink W and adjacent to Clifton Court Forebay, ca 15 air miles SW of Stockton. Comment
  UC338048  Trifolium depauperatum var. depauperatum Edw. L. Greene 1889-3-23 Contra Costa Byron Comment
  UC630932  Trifolium depauperatum var. depauperatum P. B. Kennedy 1928-4-19 10035 a Contra Costa Byron Comment
  UC2028085  Trifolium depauperatum var. depauperatum Barbara Ertter, Tony Morosco 1998-4-12 15982 Contra Costa Base of Mount Olympia on north side of Mount Diablo south side of lower end of Olympia Trail. Comment
  UC631080  Trifolium depauperatum var. truncatum P. B. Kennedy 1928-4-19 10045 Contra Costa Byron Hot Springs Comment
  UC692647  Trifolium depauperatum var. truncatum Mary L. Bowerman 1932-3-23 1125 Contra Costa betw Monument and Concord (Oak Grove School junction); Mount Diablo Comment
  POM18457  Trifolium dichotomum C. F. Baker 1903-4-27 2797 Contra Costa Byron. Comment
  RSA721747  Trifolium dubium Barbara Ertter, Mary Bowerman 1995-5-7 14023 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, along road through annual grassland with scattered blue oak south of Marsh Creek. Road. summit. 305 Comment
  UC1607614  Trifolium fragiferum Barbara Ertter, Brad Olson 1993-8-8 12199 Contra Costa sw San Ramon; Bishop Ranch Regional Open Space Comment
  JEPS65882  Trifolium fucatum W. L. Jepson 1923-4-22 9857 Contra Costa Mt. Diablo Comment
  JEPS65884  Trifolium fucatum E. L. Greene 1889-3-25 Contra Costa Byron Comment
  UC16512  Trifolium fucatum W. H. Brewer 1862-5-1 1040 Contra Costa s Camp 69; Walnut Creek Comment
  UC16513  Trifolium fucatum W. H. Brewer 1862-5-5 1045 Contra Costa Camp 69 Walnut Creek Comment
  UC16539  Trifolium fucatum J. Burtt Davy 1900-3-24 6532 Contra Costa Stege Comment
  SEINET12147993  Trifolium fucatum Unknown 1878-1 s.n. Contra Costa Near Mt. Diablo Comment
  RSA195421  Trifolium fucatum var. fucatum C. P. Smith 1922-5-20 3532 Contra Costa Lafayette - trolly line. Comment
  RSA90945  Trifolium fucatum var. fucatum F. W. Peirson, Mabel B. Peirson 1926-4-10 6638 Contra Costa Between Walnut Creek and Martinez. Comment
  UC148551  Trifolium gracilentum Katharine Brandegee 1909-4-24 Contra Costa Antioch Comment
  UC16558  Trifolium gracilentum W. H. Brewer 1862-4-24 989 Contra Costa Camp 68 Martinez Comment
  UC400157  Trifolium gracilentum Ynes Mexia 1929-4-21 2375 Contra Costa Moraga Valley Comment
  JEPS65901  Trifolium gracilentum var. gracilentum W. L. Jepson May 23 1891-May 24 1891 13689 Contra Costa Mt. Diablo Comment
  JEPS65910  Trifolium gracilentum var. gracilentum W. L. Jepson 1917-4-19 6865 Contra Costa Oakland Hills Comment
Read comments Dec 17 2008
  JEPS99601  Trifolium hirtum Mary Bowerman 1995-5-21 Contra Costa Mount Diablo, Wall Pt. fire road perhaps 1/2 mile from South Gate Rd., near Tom Brumleve's home; also other places along North Gate Rd. Comment
  UC1818958  Trifolium hirtum Barbara Ertter, Kristin Ertter 1995-7-11 14479 Contra Costa Pine Creek on West side of Mt. Diablo southwest of Walnut Creek; partial shade of oak forest, road along Pine Cr. in Diablo Foothills Regional Park 152 Comment
  RSA721591  Trifolium hirtum Mary L. Bowerman 1995-5-21 s.n. Contra Costa Mount Diablo. Wall Pt. fire road perhaps 1/2 mile from South Gate Rd. Comment
  UC2028947  Trifolium hybridum Barbara Ertter 2000-7-16 17391 Contra Costa lower Pine Creek in Diablo Foothills Regional Park. Comment
  CDA15234  Trifolium incarnatum G. F. Hrusa, D. Crowe 1998-5-8 14364 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg. Comment
  UC1952814  Trifolium incarnatum Barbara Ertter 2010-5-12 19830 Contra Costa Miller Knox Regional Shoreline at south edge of Point Richmond; along West Ridge Trail Comment
  UC1130084  Trifolium microdon C. M. Belshaw 1936-5-7 2043 Contra Costa 2 mi s San Ramon; Mt. Diablo quadrangle 274 Comment
  UC692248  Trifolium microdon Mary L. Bowerman 1931-4-25 752 Contra Costa 2 mi from west entrance (=North Gate); Mount Diablo Comment
  UC692670  Trifolium microdon Mary L. Bowerman 1935-5-16 2987 Contra Costa Russelman Park Mount Diablo (at end of road) 381 Comment
  UC764715  Trifolium microdon R. F. Hoover 1939-4-25 4066 Contra Costa Richmond hills Comment
  RSA90931  Trifolium microdon J. T. Howell 1933-5-14 11244 Contra Costa St. Mary's College. Comment
  UC16753  Trifolium obtusiflorum W. H. Brewer 1862-4-30 1005 Contra Costa Camp 69 Walnut Creek Comment
  CDA31874  Trifolium oliganthum D. G. Kelch 2008-4-6 8 .034 Contra Costa Black Diamond Mines Regional Park. Near small picnic area between parking lot and mine entrance. 0 Comment
  UC2028087  Trifolium oliganthum Barbara Ertter, Tony Morosco 1998-4-12 15984 Contra Costa Base of Mount Olympia on north side of Mount Diablo, south side of lower end of Olympia Trail. Comment
  CHSC116629  Trifolium tomentosum Lowell Ahart; Josephine Guardino 2016-4-19 20760 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. On both sides of the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  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
  CAS-BOT-BC26494  Trifolium triflorum M. K. Curran 1883-1-1 s.n. Contra Costa Near Mt. Diablo Comment
  UC16795  Trifolium variegatum var. melananthum W. L. Jepson 1891-5-24 Contra Costa Mt. Diablo Comment
  JEPS4355  Trifolium willdenovii W. L. Jepson 1925-4-26 10691 Contra Costa Mt. Diable Comment
  SEINET4178511 Image available Trifolium willdenovii P. B. Kennedy 1928-1 10036 Contra Costa Byron Comment
  UC1057455  Trifolium willdenovii G. Thomas Robbins 1937-4-17 133 Contra Costa near Point Richmond Comment
  UC16730  Trifolium willdenovii J. Burtt Davy 1895-4-7 991 Contra Costa Antioch Comment
  UC16752  Trifolium willdenovii W. H. Brewer 1862-5-12 1075 Contra Costa Mt. Diablo Comment
  UC579846  Trifolium willdenovii Annetta Carter 1936-4-19 1109 Contra Costa e side of island Red Rock Comment
  UC725897  Trifolium willdenovii A. A. Heller 1938-4-9 15017 Contra Costa 3 mi sw Antioch (from type region) Comment
  POM18879  Trifolium willdenovii H. P. Chandler 1901-3-22 841 Contra Costa Concord. Comment
  POM300698  Trifolium willdenovii Mary L. Bowerman 1933-5-11 2083 Contra Costa Inner Black Hills: Grassy ridge, west end. Comment
  JEPS37726  Trifolium wormskioldii W. L. Jepson 1922-5-26 9671 Contra Costa North Berkeley Hills Comment
  SEINET10534314  Trillium ovatum John G. Lemmon Lemmon s.n. Contra Costa Comment
  JEPS10670  Triphysaria eriantha subsp. eriantha R. F. Hoover 1938-2-27 2783 Contra Costa Danville Comment
  JEPS15190  Triphysaria eriantha subsp. eriantha R. C. Wilson 1935-3-26 144 Contra Costa 2 mi n Walnut Creek; Concord Quad. Comment
  JEPS73687  Triphysaria eriantha subsp. eriantha L. R. Heckard with Wm. Hirano and Ted Niehaus 1968-3-5 1756 Contra Costa along Byron-Bethany road at junction of Holey Road about 3 mi se Byron 7 Comment
  UC650592  Triphysaria eriantha subsp. eriantha Ira L. Wiggins 1930-4-17 4571 Contra Costa 1/4 mi s Byron Comment
  CDA29048  Triphysaria pusilla D. G. Kelch 2006-5-7 6 .157 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  JEPS126600  Triphysaria pusilla Lowell Ahart, Josephine Guardino 2016-4-19 20780 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quadrangle. 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. Comment
  SEINET238875 Image available Trisetum canescens Beecher Crampton 1956-5-14 3423 Contra Costa 2 miles west of Martinez on road to Crockett. Comment
  UC53698  Trisetum canescens J. Burtt Davy 1900-3-24 6520 Contra Costa Pt. Richmond Comment
  UCD93500  Trisetum canescens Beecher Crampton 1956-5-14 3423 Contra Costa 2 miles west of Martinez, on road to Crockett. Comment
  UC2070608  Trisetum canescens Barbara Ertter with Debra Trock 2005-6-25 18609 Contra Costa North end Redwood Regional Park, Stream Trail along Redwood Creek. Comment
  UC1795734  Triteleia hyacinthina Barbara Ertter, Brad Olson 1994-5-7 12750 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge 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
  JEPS58065  Triteleia laxa W. L. Jepson 1918-6-3 7569 Contra Costa Donner Canyon Mt. Diablo 304 Comment
  UC1555377  Triteleia laxa Jerry Powell 1988-5-18 1539 Contra Costa Point Molate west Richmond Comment
  UC765433  Triteleia laxa R. F. Hoover 1939-4-25 4063 Contra Costa Richmond hills Comment
  CAS-BOT-BC526332  Triteleia laxa A. A. Heller 1908-4-17 8902 Contra Costa Hills three miles south of Antioch 18 Comment
  RSA760668  Triteleia laxa William J. Ferlatte, L. Maynard Moe 1970-4-27 1229 Contra Costa San Francisco Bay, Red Rock Island. Comment
  SEINET3127299  Triteleia laxa H. A. Walker 1906-1 148 Contra Costa Vicinity of Berkeley Comment
  CAS-BOT-BC67349  Tropidocarpum capparideum Edw. L. Greene 1889-3-23 s.n. Contra Costa Byron. Comment
  POM311159  Tropidocarpum capparideum Robert F. Hoover 1936-3-19 806 Contra Costa Byron Hot Springs Comment
  SEINET8727865 Image available Tropidocarpum capparideum Robert F. Hoover 1936-1 806 Contra Costa Byron Hot Springs. Comment
  UC136962  Tropidocarpum gracile K. Brandegee April, 1889 Contra Costa Antioch Comment
  UC673305  Tropidocarpum gracile H. L. Mason 1929-3-31 5152 Contra Costa sand dike along river at Antioch; San Joaquin River Comment
  CAS-BOT-BC67412  Tropidocarpum gracile Mary L. Bowerman 1931-3-29 614 Contra Costa Mount Diablo. Riggs Canyon, at foot of Cave Point ridge. Comment
  CAS-BOT-BC73895  Turritis glabra Mary L. Bowerman 1932-5-6 1431 Contra Costa Mitchell Canyon. At end of road. 251 Comment
  UC1241770  Typha Malcolm A. Nobs and S. Galen Smith 1949-6-28 879 Contra Costa on road to Martinez about two mi s Crockett Comment
  CDA1418  Typha angustifolia D. G. Kelch, Andrew G. Murdock 2003-8-13 3 .105 Contra Costa Carquinez Strait Region; Martinez Marsh. Comment
  UC2028448  Typha angustifolia Barbara Ertter with Chris Thayer 1996-10-25 15386 Contra Costa West side of Mount Diablo, North Gate Road 0.4 road miles below junction, Jill Creek Comment
  UC1241758  Typha domingensis Malcolm A. Nobs 1950-8-20 Contra Costa Nortonville Comment
  UC2061510  Ulmus minor Dean G. Kelch 2016-4-30 16 .103 Contra Costa Carquinez Strait: Selby, west of Crockett. On west side of canyon near old dwelling foundation. Comment
  UC2070596  Ulmus minor Barbara Ertter with Chris Thayer 2002-4-13 17826 Contra Costa North side of Mount Diablo, on north face of Mount Olympia. Comment
  JEPS112487  Umbellularia californica D. G. Kelch 2003-2-7 03 .37.B Contra Costa Franklin Canyon 115 Comment
  UC691944  Umbellularia californica Mary L. Bowerman 1931-2-8 514 Contra Costa Summit of Mount Diablo Mount Diablo Comment
  SEINET12093234  Umbellularia californica Unknown 1983-1 4965 Contra Costa Castro Ranch Road between Hillside St. and Alhambra Valley Road. Plant survey for Douglas Carter Comment
  CDA8957  Uropappus lindleyi D. G. Kelch, A. G. Murdock 2005-5-13 5 .258 Contra Costa Carquinez Strait Region; Martinez - West: Ozol Rock and Scenic Drive. Area along Vista Road ~2.5 km west of Martinez. Comment
  JEPS111920  Urtica dioica subsp. holosericea Dean G. Kelch and Andrew G. Murdock 2004-5-7 DGK 04 .197 Contra Costa Canada del Cierbo. Comment
  UC521771  Urtica dioica subsp. holosericea Joseph Andorfer Ewan 1933-10-15 8018 Contra Costa sw slope Mount Diablo Mount Diablo Comment
  UC195614  Urtica urens I. J. Condit 1913-4-19 Contra Costa Richmond Annex Comment
  UC1121122  Vaccinium ovatum R. W. Lundh 1933-1-12 186 Contra Costa 0.5 mi s Round Mt.; Concord Quad. 609 Comment
  UC1050820  Verbascum olympicum N. Floy Bracelin 1943-5-30 1352 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1124419  Verbena lasiostachys var. scabrida H. S. Yates 1934-9-2 4069 Contra Costa 1 mi sw Mt Diablo; Mt Diablo Quadrangle Comment
  JEPS18890  Veronica peregrina subsp. xalapensis Rimo Bacigalupi with G. Thomas Robbins 1956-3-26 5524 Contra Costa 1.2 mi n of junction with Marsh Creek Road ( just n of Briones Valley, along the Deer Valley Road, in territory just s of Antioch,); Deer Valley Road 76 Comment
  JEPS99479  Veronica persica Mary Bowerman 1978-4-10 Contra Costa Mount Diablo. Morgan Territory Rd. at Oak Hill Lane. Comment
  UC691755  Viburnum ellipticum Mary L. Bowerman 1933-5-21 2162 Contra Costa Sulphur Spring Canyon, ridge between the two main forks, on the w side Mount Diablo 365 Comment
  UC1005836  Viburnum suspensum N. Floy Bracelin 1945-5-27 2852 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment