Search Results — 2000 specimen records retrieved (1346 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UC1050316  Abelia triflora N. Floy Bracelin 1941-8-24 1583 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  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
  UC1187354  Abies bracteata Rimo Bacigalupi 1960-4-4 7360 Contra Costa w slopes of upper Wildcat Canyon ((on short side of road toi corporation yard)); Tilean Regional Park, Berkeley Hills 297 Comment
Read comments
1
  UC1050222  Acacia dealbata N. Floy Bracelin 1942-2-1 1898 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UCD104647  Acacia dealbata Rudolf Schmid 1997-5-21 1997 -12 Contra Costa Hillside Natural Area, El Cerrito; nw. of King Ct. entrance. 575 Comment
  UC1050738  Acacia pycnantha N. Floy Bracelin 1941-4-6 1113 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS106432  Acacia retinodes Barbara Ertter with Richard Rabeler 1994-6-2 12820 Contra Costa edge of San Francisco Bay on overgrown point south of Central Avenue at Point Isabel (subsequently cleared as part of new Eastshore State Park). 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
  SD45086  Acacia verticillata W. W. Jones 1927-6-2 Contra Costa Crockett Comment
  JEPS75525  Acer macrophyllum P. F. Yorks 1976-4-6 124 Contra Costa on Hampton Road ca 1.7 km s Bear Creek Road (e of road, n of Briones Reservoir); Hampton Road Natural Reserve 200 Comment
  SD45088  Acer macrophyllum W. Jones 1927-6-2 Contra Costa Crockett Comment
Read comments
Jul 11 2010
  UC18109  Acer macrophyllum Harley P. Chandler 1901-4-5 941 Contra Costa Mt. Diablo Comment
  UC692718  Acer macrophyllum Mary L. Bowerman 1930-6-5 250 Contra Costa North Road 5.8 mi from entrance (Mount Diablo); , North Road 457 Comment
  POM247254  Acer negundo subsp. californicum Annetta Carter 1937-3-28 1227 Contra Costa Moraga Valley, 2 1/2 miles north of Moraga 183 Comment
  CAS-BOT-BC334182  Acer negundo var. californicum Annetta Carter 1937-4-4 1229 Contra Costa Creek bank, Moraga Valley, 2.5 miles north of Moraga 182 Comment
  SEINET3195243 Image available Acer negundo var. californicum Annetta Carter 1937-3-28 1227 Contra Costa Creek bank, Moraga Valley, 2.5 miles north of Moraga 180 Comment
  CHSC23362  Achillea millefolium Willis Ball 1975-4-19 520 Contra Costa Contra Loma Regional Park. In area #2. On n facing slope ca. 100 yds nw of boat ramp on w side of lake. 36 Comment
  UC1948954  Achillea millefolium William J. Ferlatte, L. Maynard Moe 1970-4-27 1227 Contra Costa San Francisco Bay: Red Rock Island 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
  RSA603777  Achillea millefolium Joseph A. Ewan 1936-5-3 9508 Contra Costa Wildcat Creek Comment
  SEINET10614426  Achillea millefolium John T. Middleton 1936-4-18 Middleton 142 Contra Costa Comment
  SEINET242917 Image available Achnatherum parishii Mary E. Barkworth, Surrey W. L. Jacobs; Betty Jacob 2003-4-7 2003 /5 Contra Costa CULTIVATED; Tilden Regional Park, east of Berkeley. Comment
  CAS-BOT-BC29885  Achyrachaena mollis L. Kellogg; Brannan 1870-4-20 s.n. Contra Costa Antioch Comment
  JEPS36721  Achyrachaena mollis Anna E. Ehlers 1920-5-23 582 Contra Costa Trampas Canon Comment
  UC1301058  Achyrachaena mollis Helen K. Sharsmith 1963-4-7 5298 Contra Costa near Byron; San Francisco Bay 7 Comment
  JEPS112327  Acmispon americanus Dean G. Kelch and Andrew G. Murdock 2004-7-16 04 .321 Contra Costa Martinez- South; County: Contra Costa; Pine St. Entrance Rte 4 heading west. Martinez, CA. Comment
  JEPS111509  Acmispon glaber Dean G. Kelch and Andrew G. Murdock 2005-5-13 05 .271 Contra Costa Martinez - South; County: Contra Costa; Tall hill in South Martinez and North of I-4. Comment
  UCD104153  Acmispon glaber W. A. Williams 1951-6-8 s.n. Contra Costa Mt. Diablo. Comment
  UCD104135  Acmispon glaber G. Thomas Robbins 1959-4-12 3983 Contra Costa About 1/2 mile southwest of junction of Hoffmann Blvd. and S. 25th St., Richmond. 6 Comment
  JEPS112352  Acmispon wrangelianus Dean G. Kelch and Andrew G. Murdock 2004-4-11 04 .061 Contra Costa Crockett - 5th St. Prairie, County: Contra Costa; 5th street Prairie, Crockett. 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
  POM339729  Actaea rubra subsp. arguta F. R. Fosberg 1969-8-13 51420 Contra Costa Canyon Comment
  JEPS46396  Adenostoma fasciculatum W. L. Jepson 1919-1-25 8211 Contra Costa Moraga Ridge Comment
  RSA453156  Adenostoma fasciculatum var. fasciculatum Bonnie C. Templeton 1962-6-20 s.n. Contra Costa Mount Diablo Comment
  OBI49101  Aesculus californica Joseph Andorfer Ewan 1936-5-31 9715 Contra Costa Wildcat Crk Comment
  RSA401059  Aesculus californica Thekla Mohr 1917-07 3153 Contra Costa Mount Diablo Comment
  UCD84956  Agoseris grandiflora var. grandiflora Chuck Hughes 2010-5-21 228 Contra Costa About 0.8 mile northwest of Vasco Road. 335 Comment
  POM203659  Agoseris heterophylla John T. Howell 1933-5-14 11260 Contra Costa Hills east of St. Mary's college Comment
  JEPS36280  Agoseris retrorsa W. L. Jepson 1921-5-22 9208 Contra Costa summit Mt. Diablo Comment
  UC691431  Agoseris retrorsa Mary L. Bowerman 1931-4-25 783 Contra Costa summit Meridian Peak; Mount Diablo Comment
  CHSC116630  Agrostis avenacea Lowell Ahart; Josephine Guardino 2016-4-19 20787 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Below the high water line of Los Vaqueros Reservoir, 1.4 miles (air) northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  UC2028508  Agrostis avenacea Barbara Ertter with Tony Morosco 1998-9-18 16425 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, north quarry area [subsequently developed] Comment
  CAS-BOT-BC127342  Agrostis exarata Mary L. Bowerman 1933-9-9 2434 Contra Costa Mount Diablo. Frog Pond. Comment
  UC1795639  Agrostis hallii Barbara Ertter, Mary Bowerman 1995-6-11 14256 Contra Costa Shell Ridge Recreation Area southeast of Walnut Creek, bank of Indian Creek above Indian Valley Pond, partial sun on Franciscan layer. 76 Comment
  UC697196  Agrostis hallii Mary L. Bowerman 1944-6-19 3895 Contra Costa in eastern corner of triangle formed by roads to upper Rock City Camp (Fossil Ridge, Mount Diablo); Mount Diablo Comment
  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
  UCD150904  Agrostis stolonifera James A. Neilson Jr. 1972-10-1 3513 Contra Costa Walnut Creek drainage. Elevation estimated in Google Earth by label maker. 1 Comment
  JEPS99592  Agrostis viridis Mary Bowerman 1993-10-22 Contra Costa Mount Diablo, Pine Pond, South side. Comment
  UC692389  Aira caryophyllea Mary L. Bowerman 1942-5-24 3844 Contra Costa Lower Rock City Camp Mount Diablo, Fossil Ridge 457 Comment
  UC692094  Alisma plantago-aquatica Mary L. Bowerman 1933-9-9 2429 Contra Costa Frog Pond Mount Diablo Comment
  UCD137984  Alisma triviale Beecher Crampton 1950-6-10 589 Contra Costa 1 mile north of Richmond, along Santa Fe R.R. 15 Comment
  RSA411795  Allenrolfea occidentalis E. E. Stanford 1930-5-24 1520 Contra Costa Near Byron. Comment
  CAS-BOT-BC459418  Allium acuminatum Mary L. Bowerman 1930-6-14 329 Contra Costa Meridian Peak Summit, North slope, Mount Diablo Comment
  POM181433  Allium crispum I. L. Wiggins 1930-4-17 4565 Contra Costa Near Mountain House, Altamont Pass. Comment
  UC843253  Allium falcifolium Lewis S. Rose 1941-5-15 41237 Contra Costa summit of Mt. Diablo, Type Locality Mt. Diablo 1188 Comment
  RSA26408  Allium falcifolium J. T. Howell 1941-4-6 16179 Contra Costa Ridge east of Deer Park, Mt. Diablo Comment
  UC3107  Allium serra Brewer 1022 Contra Costa Walnut Creek Comment
  JEPS21840  Allium unifolium T. E. Adams 1958-5-16 76 Contra Costa Charles Lee Tilden Regional Park 121 Comment
  CAS-BOT-BC476606  Allium unifolium Mrs. E. C. Wright 1917-6-1 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC476607  Allium unifolium John Thomas Howell 1931-5-12 6469 Contra Costa Oakland Hills Comment
  SEINET3151680  Allocarya stipitata L. S. Rose 1936-4-24 36155 Contra Costa 8 miles S of Antioch 30 Comment
  UCD118010  Allophyllum divaricatum Clifford Low 1978-5-19 3 Contra Costa Back Canyon Creek, east of Eagle Peak on Mount Diablo. 304 Comment
  CAS-BOT-BC137970  Alopecurus saccatus John Thomas Howell 1953-4-26 28936 Contra Costa Between Byron and Byron Hot Springs. Comment
  JEPS127677  Alopecurus saccatus Barbara Ertter with David Gowen and Michael Park 2017-5-2 22798 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  CAS-BOT-BC137969  Alopecurus saccatus Niall McCarten; V. I. Dains 1986-6-1 03261419 Contra Costa 0.5 mile north of Balfour Road at the Deer Creek Reservori. Comment
  CDA20558  Alternanthera philoxeroides unknown 2005-6-23 s.n. Contra Costa San Francisco Bay Area; Garden weed in Danville, CA. 0 Comment
  UC691918  Amaranthus californicus Mary L. Bowerman 1933-9-9 2431 Contra Costa Frog Pond Mount Diablo Comment
  UC691934  Amaranthus californicus Mary L. Bowerman 1935-9-13 3336 Contra Costa Hidden Pond Mount Diablo Comment
  SEINET3840793  Amaranthus deflexus Dean G. Kelch, Andrew G. Murdock 2005-6-27 5 .394 Contra Costa Carquinez Strait, Sixth street at Lillian Street in vegetable garden, Crockett, common garden weed 33 Comment
  UC1789207  Amaryllis belladonna Barbara Ertter 2002-8-24 18029 Contra Costa NE corner of Mount Diablo State park, along upper bridle path S of Mount Diablo Mine property, apparent site of old homestead (only rocked terraces left) 274 Comment
  UC1714461  Amelanchier utahensis Jos. Burtt Davy 1901-4-21 Contra Costa Wildcat Canyon Comment
  CAS-BOT-BC222218  Amsinckia John Thomas Howell 1934-4-8 11812 Contra Costa 7 miles from Clayton on road to Livermore Comment
  CAS-BOT-BC222233  Amsinckia John Thomas Howell 1933-3-29 10908 Contra Costa Nortonville hills Comment
  UC1178261  Amsinckia eastwoodiae R. Bacigalupi and Francia Chisaki 1957-3-27 914 Contra Costa 2.2 mi southeast of Byron (on Byron Highway) Comment
  UC1094074  Amsinckia eastwoodiae Francia Chisaki 1952-3-13 201 Contra Costa 0.25 mi s of Hwy 50 on Mountain House Road Comment
  CHSC91870  Amsinckia intermedia Richard R. Halse 1988-2-20 3541 Contra Costa Along State Hwy. 4 near its junction with Balfour Road on the S edge of Brentwood. 23 Comment
  UC1618223  Amsinckia intermedia Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8130 Contra Costa ca. 15 air mi. s.w. Stockton (w. and adjacent to Clifton Court Forebay) Comment
  UC691630  Amsinckia intermedia Mary L. Bowerman 1935-4-22 2891 Contra Costa ridge w of Pioneer Road ((w of Stage Road)); Mount Diablo 853 Comment
  UC725369  Amsinckia intermedia A. A. Heller 1938-4-9 15014 Contra Costa in an orchard near Walnut Creek Comment
  RSA0090979  Amsinckia intermedia A. A. Heller 1938-4-9 15014 Contra Costa In an orchard near Walnut Creek. Comment
  RSA32944  Amsinckia intermedia A. A. Heller 1938-4-9 15016 Contra Costa 3 miles southwest of Antioch Comment
  SD211561  Amsinckia intermedia Barbara Ertter, Jim Jokerst et al 1989-4-5 8130 Contra Costa Alkalai sink West and adjacent to Clifton Court Forebay, circa 15 airmiles Southwest of Stockton. Comment
  UC762762  Amsinckia intermedia R. F. Hoover 1938-4-20 3179 Contra Costa between Resevoir and San Pablo Comment
  CAS-BOT-BC222463  Amsinckia lunaris Robert F. Hoover 1939-5-20 4105 Contra Costa Lower end of San Pablo Reservoir Comment
  UC1084624  Amsinckia lunaris Francia Chisaki, Peter Kamb Ray 1952-5-4 2275 Contra Costa 1.5 mi e Orinda-Richmond road (leaving this road ca 1 mi n of Orinda); Bear Creek Road Comment
  CDA9450  Amsinckia menziesii D. G. Kelch 1992-3-21 1822 -A Contra Costa 2.5 mi. SE of Byron; along RR tracks, N of junction of Holey Rd. and Byron Hwy. 0 Comment
  UC1073067  Amsinckia menziesii var. menziesii Helen K. Sharsmith 1954-3-24 4411 Contra Costa canyon back of Nortonville Mines (e of Mount Diablo); Inner South Coast Ranges 304 Comment
  RSA0089987  Amsinckia retrorsa Lyman Benson 1935-3-16 6283 Contra Costa 3 miles S of Antioch. Mt. Range: Mt. Diablo; Watershed: Sacramento River. 152 Comment
  UC24591 Image available Amsinckia tessellata Brewer 1862-1 1119 Contra Costa near Mt. Diablo; ; near Mt. Diablo Comment
  UCSB39447  Amsinckia tessellata Fritzke, Sue 1980-3-1 Contra Costa Hills behind Walnut Heights Elementary School, off of Walnut Blvd., 1 mile east of intersection with Walker Rd. 121 Comment
  JEPS68948  Amsinckia tessellata var. tessellata Edward Lee 1935-3-10 1276 Contra Costa w watershed of Kirker Creek (Kirker Pass, Donovan Road); Kirker Pass Comment
  CDA5474  Anagallis arvensis A. G. Murdock, D. G. Kelch 2004-3-19 215 Contra Costa Carquinez Strait Region; Luzon. Sycamore Avenue just east of Rodeo/Hercules where train crosses Highway 4 (Luzon). Comment
  CHSC75115  Anagallis arvensis Roger Thom 1987-5-26 21 Contra Costa 2800 block of Buena Vista Ave. Walnut Creek. 30 Comment
  JEPS43119  Anagallis arvensis W. L. Jepson 1923-4-22 9865 Contra Costa Mt. Diablo Comment
  UC2031455  Anagallis arvensis Barbara Ertter with David Gowen, Mike Park, Chris Thayer et al. 2014-4-12 21711 Contra Costa South tributary of Perkins Canyon at Prospectors Gap Road, Ginochio property on east side of Mount Diablo Comment
  UC691833  Anagallis arvensis Mary L. Bowerman 1930-6-28 389 Contra Costa Mt. Diablo, Lower Silver Spring Comment
  UCD164884  Anagallis arvensis Henry House 1995-5-16 1995- 11 Contra Costa About 100 m west of Walnut Blvd., ca. 1.25 km south of Marsh Creek Rd. 33 Comment
  SEINET9341786  Anagallis arvensis Unknown 1966-4-15 101 Contra Costa Contra Costa County Comment
  UCD117553  Anagallis arvensis Terri Williamson 1990-5-22 69 Contra Costa 212 Poshard Street, Pleasant Hill. 12 Comment
  CAS-BOT-BC45254  Ancistrocarphus filagineus Brandegee s.n. Contra Costa Antioch Comment
  UC672438  Anemopsis californica Herbert L. Mason 1929-9-21 5437 Contra Costa 3 mi above Clayton (Marsh Creek Road); Marsh Creek Road Comment
  UCD137881  Anemopsis californica Walter Knight; Irja Knight 1977-6-18 s.n. Contra Costa 2 miles from Dutch Slough on Jensey Island Road, near Oaklay. Comment
  UC692259  Angelica californica Mary L. Bowerman 1932-5-6 1420 Contra Costa Mount Diablo, Mitchell Canyon Mitchell Canyon; Mount Diablo, Mitchell Canyon 228 Comment
  UC1594182  Anthemis cotula Jerry Powell 1992-6-17 1692 Contra Costa Richmond Field Station Comment
  UC1795764  Anthriscus caucalis Barbara Ertter, Lisa Schultheis 1995-4-27 14015 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; north-facing open brushy slope with scattered oaks along extension of Valley View road. 182 Comment
  SEINET884570 Image available Antirrhinum elmeri A. D. E. Elmer 1903-1 4809 Contra Costa Mount Diablo. Comment
  UC1795735  Antirrhinum majus Barbara Ertter, Brad Olson 1994-5-7 12744 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  UC691897  Apiastrum angustifolium Mary L. Bowerman 1933-4-26 1917 Contra Costa Mount Diablo, North Peak North Peak; Mount Diablo, North Peak 609 Comment
  UC691898  Apiastrum angustifolium Mary L. Bowerman 1932-4-27 1391 Contra Costa canyon w of Riggs Canyon (Mount Diablo, Oyster Ridge); Mount Diablo, Oyster Ridge 335 Comment
  CDA5335  Apium graveolens D. G. Kelch, A. G. Murdock 2004-7-9 4 .305 Contra Costa Carquinez Strait Region.; Martinez. Alhambra Creek near Strait. 0 Comment
  JEPS60419  Aquilegia W. L. Jepson 1920-9-6 9084 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC392088  Aquilegia formosa John Thomas Howell 1933-5-14 11253 Contra Costa Hills east of St. Mary's College Comment
  JEPS112056  Aquilegia formosa A. G. Murdock 2004-4-30 254 Contra Costa Vaca Canyon On steep south slope along road 165 Comment
  UC692088  Aquilegia formosa Mary L. Bowerman 1935-5-18 3021 Contra Costa across the rd and a little east from the parking area Mount Diablo 1066 Comment
  UCD95520  Aquilegia formosa Collector unknown Date unknown s.n. Contra Costa On ridge to west of Franklin Canyon (Central). 274 Comment
  CAS-BOT-BC17272  Arabis blepharophylla Paul F. Covel 1938-5-8 1514 Contra Costa Summit Mount Diablo. Comment
  CDA19724  Arabis breweri unknown 1937-4-18 Contra Costa Northern California; Mt. Diablo. 0 Comment
  UCSC000302  Arabis breweri Carl Meyer 1928-2-22 283 Contra Costa Mount Diablo Comment
  CHSC24747  Arbutus menziesii G. Strang 1976-4-17 14 Contra Costa Pinehurst road 3.5 mi NW of Canyon School on SE facing bank. 152 Comment
  CAS-BOT-BC407800  Arceuthobium campylopodum L. R. Abrams 1910-10-8 4356 Contra Costa Mt. Diablo Comment
  SEINET11977748  Arctostaphylos andersonii var. auriculata L. S. Rose 1932-1 32110 Contra Costa Nortonville Comment
  RSA121965  Arctostaphylos andersonii var. pallida B. O. Schreiber 1938-9-18 2548 Contra Costa 0.5 miles south southwest of Round Top. 335 Comment
  CAS-BOT-BC24108  Arctostaphylos auriculata Alice Eastwood; John Thomas Howell 1936-4-19 2130 Contra Costa Nortonville Comment
  CAS-BOT-BC24121  Arctostaphylos auriculata Lewis S. Rose 1934-2-28 34039 Contra Costa S. slope Mt. Diablo, 8 mi. NE Danville Comment
  RSA212152  Arctostaphylos auriculata L. S. Rose 1970-4-2 70023 Contra Costa Rock City, Mount Diablo. 426 Comment
  RSA622483  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27593 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments
Jan 30 2013
  RSA622485  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27602 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
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Jan 30 2013
  RSA622486  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27597 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments
Jan 30 2013
  UC1120859  Arctostaphylos auriculata R. W. Lundh 1932-8-24 138 Contra Costa 2 mi s Mt. Diablo (Rock City); Mt. Diablo Quadrangle 502 Comment
  UC1980319  Arctostaphylos auriculata Barbara Ertter with David Gowen 2012-2-28 20932 Contra Costa ridge circled by lower (south) end of Whipsnake Loop; Contra Costa Water District land west of Los Vaqueros Reservoir; southeast of Morgan Territory Regional Preserve Comment
  UCD50264  Arctostaphylos auriculata Roman Gankin 1968-11-14 1309 Contra Costa Ca. 300 yds. above the road at Somersville. Comment
  CHSC83112  Arctostaphylos canescens subsp. sonomensis Walter Knight 1968-1-15 Contra Costa Tilden Park Bot. Gard. Comment
  CAS-BOT-BC23556  Arctostaphylos crustacea Lewis S. Rose 1954-3-1 54004 Contra Costa Oakland Hills above Redwood Canyon 609 Comment
  CAS-BOT-BC23560  Arctostaphylos crustacea John Thomas Howell 1930-6-15 5311 Contra Costa Rocky north-west slope of summit of Grizzley Peak, Berkeley Hills. Comment
  CAS-BOT-BC23595  Arctostaphylos crustacea Gladys L. Smith 1966-4-9 s.n. Contra Costa Moraga Ridge (Pine Ridge section) Comment
  CHSC20599  Arctostaphylos glandulosa Robert A. Schlising 1962-2-21 2081 Contra Costa Coast Ranges. Berkeley-Oakland Hills of westernmost part of county. Comment
  JEPS46405  Arctostaphylos glandulosa W. L. Jepson 1919-1-25 9209 Contra Costa Moraga Ridge Comment
  OBI14772  Arctostaphylos glandulosa H. E. McMinn 1923-3-6 875 Contra Costa Sycamore Canon, Mt. Diablo Comment
  CAS-BOT-BC24858  Arctostaphylos glandulosa subsp. cushingiana Walter Knight; Irja Knight 1980-3-16 3716 Contra Costa Sobrante Ridge between Heavenly Ridge Lane and Castro Ranch Road, El Sobrante. Comment
  CAS-BOT-BC24809  Arctostaphylos glandulosa subsp. glandulosa Paul F. Covel 1938-2-20 1113 Contra Costa Moraga Ridge above Pinehurst. Comment
  CAS-BOT-BC24657  Arctostaphylos glauca H. E. McMinn 1922-6-21 89 Contra Costa N. slope of Mt. Diablo. Comment
  CAS-BOT-BC24659  Arctostaphylos glauca H. E. McMinn 1922-10-17 411 Contra Costa From Mitchell Canyon, Mt. Diablo. Comment
  CAS-BOT-BC24660  Arctostaphylos glauca John Thomas Howell 1926-3-7 1674 Contra Costa Mt. Diablo. 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
  RSA632822  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27578 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  SEINET11991008  Arctostaphylos manzanita Unknown 1981-1 4 Contra Costa Mt. Diablo State Park, 10 mi from parks N gate Comment
  CAS-BOT-BC38924  Arctostaphylos manzanita subsp. laevigata Alice Eastwood 1922-5-17 11085 Contra Costa Mt. Diablo Comment
  UC549604  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-10-6 675 Contra Costa Mt. Diablo Comment
  UC692231  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1932-9-5 1545 Contra Costa large spur on meridian which heads into Sycamore Canyon; Mount Diablo Comment
  UCD51724  Arctostaphylos manzanita subsp. laevigata R. W. Lundh 1932-8-17 130 Contra Costa 1 mile East of Round Valley. 518 Comment
  UC2028017  Arctostaphylos manzanita subsp. laevigata Barbara Ertter 1997-9-14 15818 Contra Costa Southwest side of Mount Diablo, Wall Point Road on open sandstone ridge northwest of Wall Point. Comment
  CAS-BOT-BC24394  Arctostaphylos manzanita subsp. manzanita Brandegee 1889-1-1 5 Contra Costa Antioch. Comment
  POM300729  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1932-1-23 1076 Contra Costa Sycamore Canyon, east fork: East edge of chaparral near canyon bottom. Comment
  CAS-BOT-BC42236  Arctostaphylos pallida Walter Knight; Irja Knight 1980-3-16 3714 Contra Costa Sobrante Ridge between Heavenly Ridge Land and Castro Ranch Road. Comment
  SBBG114892  Arctostaphylos pallida C. Bornstein 1999-3-20 Contra Costa Sobrante Ridge Regional Preserve 243 Comment
  JEPS48824  Arctostaphylos tomentosa subsp. crustacea H. M. Wheeler 1944-1-16 27509 Contra Costa Moraga Ridge Oakland Hills Comment
  RSA164648  Arctostaphylos tomentosa subsp. crustacea P. C. Everett 1963-11-19 11774 Contra Costa Mt. Diablo. 457 Comment
  UC1120141  Arctostaphylos tomentosa subsp. crustacea R. W. Lundh 1933-2-1 200 Contra Costa 1/2 mi sw Pinehurst; Concord Quadrangle Comment
  UC1120189  Arctostaphylos tomentosa subsp. crustacea R. W. Lundh 1932-8-27 151 Contra Costa 1 1/2 mi w Cave Point; Mount Diablo Quadrangle 502 Comment
  UC909879  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 631 Contra Costa Moraga Ridge Comment
  RSA0029784  Arctostaphylos tomentosa subsp. rosei Barbara Ertter, L. Vorobik 2000-1-9 16888 Contra Costa Las Trampas Regional Wilderness in East Bay Hills west of Danville. Comment
  UC692179  Argemone Mary L. Bowerman 1932-10-1 1603 Contra Costa Mount Diablo, Mitchell Canyon Mitchell Canyon; Mount Diablo, Mitchell Canyon Comment
  JEPS81964  Argyranthemum foeniculaceum Rimo Bacigalupi and L. R. Heckard 1965-5-11 9070 Contra Costa on strand at n end Brooks Island (sw of Richmond, in San Francisco Bay); San Francisco Bay, n end of Brooks Island Comment
  SJSU6159  Aristolochia californica C. O. Dudley 1966-5-1 106 Contra Costa Reliez Valley, Briones Hills N of Lafayette 152 Comment
  CAS-BOT-BC400401  Aristolochia californica Wm. M. Canby 1894-3-1 s.n. Contra Costa Walnut Creek Comment
  UCD137820  Aristolochia californica G. L. Stebbins Jr.; P. Dansereau, C. McMillan, K. Naravan 1949-3-26 3967 Contra Costa 0.5 mile northeast of Saint Mary's College, Moraga. Comment
  JEPS35906  Arnica discoidea W. L. Jepson 1943-6-8 20847 Contra Costa Moraga Ridge Comment
  JEPS97592  Arnica discoidea R. D. Stone 1980-7-13 268 Contra Costa ne of intersection of Snake Blvd. and Skyline Blvd Huckleberry Trail; Redwood Regional Park, Oakland Hills 396 Comment
  RSA94492  Arnica discoidea F. W. Peirson 1923-7-1 3919 Contra Costa Mt. Diablo Comment
  UC2028262  Arnica discoidea Barbara Ertter 1999-6-12 16718 Contra Costa Head of West Branch Alamo Creek on south flank of Mount Diablo, spur road to powerline south from Knobcone Point Road at park boundary. Comment
  JEPS75554  Artemisia californica P. F. Yorks 1974-9-28 366 Contra Costa north of Briones Reservoir (on Hampton Road 1.6 km south of Bear Creek Rd; e. side slope.); Hampton Road Natural Reserve 200 Comment
  UC1948939  Artemisia californica William J. Ferlatte, L. Maynard Moe 1970-4-27 1264 Contra Costa San Francisco Bay: Red Rock Island Comment
  JEPS111683  Artemisia douglasiana D. G. Kelch 2003-8-13 03 .139 Contra Costa Pinole Creek 68 Comment
  UC2028460  Artemisia douglasiana Barbara Ertter 1997-9-7 15794 Contra Costa North side Mount Diablo, Donner Creek crossing at south end of Hetherington Trail Comment
  UC691721  Artemisia douglasiana Mary L. Bowerman 1930-8-24 414 Contra Costa Mitchell Canyon Mount Diablo, Mitchell Canyon Comment
  CAS-BOT-BC90295  Artemisia douglasiana John Thomas Howell 1925-9-19 1467 Contra Costa East side of Moraga Ridge near south end, Oakland Hills Comment
  UC219339  Asclepias californica H. M. Hall 1922-5-7 11804 Contra Costa Marsh Creek; Mt. Diablo Comment
  UC2027815  Asclepias californica Barbara Ertter with Holly Forbes 1997-4-20 15553 Contra Costa North base of Mount Diablo, trail to Back Creek from Mitchell Canyon trailhead. Comment
  UC2028979  Asclepias californica Barbara Ertter 2000-5-14 17019 Contra Costa Donner Basin on north side of Mount Diablo, upper end of Falls Trail near junction of Cardinet Oaks Road. Comment
  UC2045295 Image available Asclepias californica Mary L. Bowerman 1932-9-24 1596 Contra Costa Ridge running west from Twin Peaks Comment
  JEPS100126  Asclepias cordifolia G. Smick 2003-4-1 GAS 88 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2013060  Asclepias fascicularis Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14916 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek Comment
  UC1795104  Asphodelus fistulosus Barbara Ertter, Tony Morosco 2000-4-12 16959 Contra Costa Vasco Road 0.4 miles north of Tesla Road southeast of Livermore; roadside. 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
  UC13388  Astragalus asymmetricus F. T. Bioletti 1892-1 Contra Costa Byron Comment
  CDA18030  Astragalus asymmetricus R. M. Case 1999-7-6 PDR 004803 Contra Costa Along Kikker Pass Rd, Pittsburg. 0 Comment
  CAS-BOT-BC177883  Astragalus didymocarpus var. didymocarpus Brandegee 1889-5-1 s.n. Contra Costa Antioch Comment
  UC692524  Astragalus gambelianus Mary L. Bowerman 1932-4-9 1328 Contra Costa small ridge e of south spur meridian (Inner Black Hills, Mount Diablo); Mount Diablo, Inner Black Hills Comment
  CAS-BOT-BC178472  Astragalus gambelianus H. L. Mason 1928-4-26 4380 Contra Costa Berkely - Oakland Hills Comment
  JEPS116914  Astragalus gambelianus David Gowen 2009-4-4 980 Contra Costa Hard packed sandy area just south of Las Trampas Ridge Trail and about 1/4 mile west of junction with Del Amigo Trail. Comment
  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
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Feb 13 2016
  UC2028334  Astragalus gambelianus Barbara Ertter 1991-5-5 9771 Contra Costa Black Diamond Mines Regional Preserve S. of Pittsburg, halfway up E ridge of Rose Hill above cemetery, level spot Comment
  SEINET10486680  Astragalus nigrescens Lincoln Constance, Carl W. Sharsmith 1940-4-27 Constance 2572 Contra Costa Petals purplish; fruit obcompressed. Loose serpentine soil, open s slope, pine Canyon, base of mt diablo. 305 Comment
  SEINET12162892  Astragalus oxyphysus W. Knight, Knight, I. 1982-1 4498 Contra Costa Tilden Botanic Garden, Berkeley, ca originally collected nr Somersville Comment
  UC10231  Athysanus pusillus T. S. Brandegee Contra Costa Antioch Comment
  UC480596  Athysanus pusillus Carl Meyer 1928-2-22 291 Contra Costa Mount Diablo Comment
  JEPS108320  Athysanus pusillus David Gowen 2005-2-23 168 Contra Costa Mt. Diablo State Park. Juniper Trail just south of Silver Spring. Comment
  CAS-BOT-BC16333  Athysanus unilateralis Alice Eastwood 1914-3-14 3766 Contra Costa Byron Springs. Comment
  CAS-BOT-BC168611  Atriplex Alice Eastwood 1927-5-19 14438 Contra Costa Byron Springs Comment
  CDA9501  Atriplex argentea D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .228 Contra Costa Byron Airport. Comment
  RSA452691  Atriplex argentea E. E. Stanford 1930-08 1870 Contra Costa near Old River Comment
  CAS-BOT-BC168536  Atriplex coronata J. W. Congdon 1889-6-22 s.n. Contra Costa Byron Springs Comment
  CAS-BOT-BC168537  Atriplex coronata H. M. Hall 1923-10-2 s.n. Contra Costa Byron Hot Springs Comment
  UCD148252  Atriplex coronata Robert E. Preston 2013-6-21 2914 Contra Costa 3.5 mi SW of Byron. 62 Comment
  CAS-BOT-BC168543  Atriplex coronata R. E. Frenkel 1964-9-18 855 Contra Costa On Balfour Road, 0.2 mile west of Bixler Road 6 Comment
  LA204675  Atriplex coronata John Thomas Howell; 1930-9-28 5503 Contra Costa 5.4 miles from Byron on Marsh Creek Road Comment
  POM181083  Atriplex coronata J. T. Howell 1930-9-28 5503 Contra Costa 5.4 miles from Byron on Marsh Creek Road. 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
  JEPS68929  Atriplex prostrata Edward Lee 1934-9-30 1225 Contra Costa Moraga; just se of station Comment
  UC2042867  Atriplex prostrata Barbara Ertter, B. Olson, D. Lake, L. Hosley and A. Youngson 1991-10-20 10871 Contra Costa Dow Wetland Preserve, just W of Antioch. Comment
  UC217190  Atriplex rosea H. M. Hall 1919-11-14 10971 Contra Costa n Byron; n of Byron Comment
  UCD97697  Atriplex semibaccata Clyde L. Elmore 1964-10-6 s.n. Contra Costa 1/2 mile south of Orwood Road, in Orwood Resort, 4-5 miles east of Brentwood. Comment
  CAS-BOT-BC146023  Avena barbata Mary L. Bowerman 1931-5-13 845 Contra Costa Mount Diablo. Pine Canyon floor one mile above the sulphur spring. Comment
  UC53773  Avena barbata Jos. Burtt Davy 1899-4-19 7839 Contra Costa Claremont Canyon Comment
  CDA19823  Avena fatua P. Akers 2002-5-11 s.n.- 2 Contra Costa Northern California; Mt Diablo Summit Trail at water tank picnic area. 873 Comment
  CDA19825  Avena fatua P. Akers 2002-5-11 s.n.- 2 a Contra Costa Northern California; Mt Diablo Rd. 205 Comment
  CHSC21639  Avena fatua Willis Ball 1975-3-9 478 Contra Costa Contral Loma Regional Park. In area #8. Ca. 600 yds. sw of main parking lit ca. 800 yds. w of Contra Loma Blvd. 152 Comment
  JEPS84887  Avena fatua G. D. Barbe 1983-5-22 4081 Contra Costa hillside along fire road n. of Juniper Campground; Mount Diablo State Park 877 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
  SEINET11261322  Baccharis glutinosa Kaye H. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4963 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough. SE portion of Bethel Slough.; 0 610 Comment
  CAS-BOT-BC98614  Baccharis pilularis John Thomas Howell; Gordon H. True 1972-6-29 48926 Contra Costa Near Byron Hot Springs (site) Comment
  JEPS99961  Baccharis pilularis A. Langston 2003-9-16 AL 92 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC98190  Baccharis salicifolia Mary L. Bowerman 1932-3-23 1134 Contra Costa Mount Diablo - Donner Canyon stream bed. 152 Comment
  CHSC23338  Balsamorhiza deltoidea Willis Ball 1975-3-26 511 Contra Costa Contra Loma Regional Park. In area #8. On N facing slope near top of hill ca. 500 yds S of main parking lot ca. 760 yds W of Contra Loma Blvd. 146 Comment
  UC584282  Balsamorhiza deltoidea G. L. Stebbins Jr. 1937-5-1 2108 Contra Costa about 1 mi s of, n facing ridge Somersville 365 Comment
  CDA23064  Barbarea orthoceras D. G. Kelch, D. A. Weinstein 2008-4-25 8 .083 Contra Costa Alvarado Park (west end of Wildcat Canyon Park) on north-facing hillside above Hindu temple in mixed scrub/grassland. Comment
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Jan 7 2016
  CDA15255  Bellardia trixago G. F. Hrusa, D. Crowe 1998-5-8 14386 Contra Costa Sacramento Delta; E end of Dow Chemical property in Pittsburg. Comment
  JEPS111081  Bellardia trixago Lee Echols 2003-4-29 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 Comment
  JEPS74805  Bellardia trixago L. R. Heckard, T. I. Chuang, and R. Bacigalupi 1975-5-7 4013 Contra Costa ca 1/2 mi e Pinole (just e of Interstate 80 along main route of Santa Fe Railroad) Comment
  UC103480  Bellardia trixago Mr. Skelton 1901-5-12 Contra Costa Martinez Comment
  UCSC000661  Bellardia trixago Mrs. G. Garlichs 1938-5-2 s.n. Contra Costa Wine Haven, Point Richmond 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
  UC691926  Berberis pinnata Mary L. Bowerman 1931-2-22 517 Contra Costa e fork Sycamore Canyon; Mt Diablo Comment
  UC697191  Berula erecta Mary L. Bowerman 1931-8-29 1031 Contra Costa Mount Diablo, Sheep Camp Spring, by North Road Sheep Camp Spring; Mount Diablo, Sheep Camp Spring Comment
  JEPS111807  Beta vulgaris D. G. Kelch 2003-8-13 03 .97 Contra Costa Martinez Marsh 1 Comment
  SJSU5109  Bidens laevis M. Bruck 1960-10-30 48 Contra Costa SW end of Winter Island, New York Slough, confluence of Sacramento & San Joaquin Rivers near Antioch Comment
  NY31018  Blennosperma californicum L. S. Rose 1941-3-13 41035 Contra Costa 3 miles south of Byron 7.6 Comment
  NY31032  Blennosperma nanum D. G. Nelson 1937-3-30 459 Contra Costa Marsh Creek Highway, about halfway between Clayton and Byron Comment
  UC1119039  Blennosperma nanum var. nanum H. S. Yates 1936-4-14 13818 Contra Costa 1/2 mi n of mouth of Perkins Canyon; Mt. Diablo Quadrangle 228 Comment
  CAS-BOT-BC127916  Blepharizonia laxa Mrs. Curran s.n. Contra Costa Antioch Comment
  RSA121587  Blepharizonia laxa G. T. Nordstrom 1937-10-28 s.n. Contra Costa 1.6 miles NNE of Somersville 183 Comment
Read comments
Dec 16 2012
  UC194219  Blepharizonia plumosa H. M. Hall 1916-8-17 10275 Contra Costa Los Medanos San Francisco Bay Region, Suisun Bay 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
  UC2029009  Blepharizonia plumosa Barbara Ertter, Dan Norris 1999-11-14 16855 Contra Costa Black Diamond Mines Regional Preserve, east end of Ridge Trail above Stewartville Trail. Comment
  UC855337  Boechera breweri subsp. breweri Mrs. S. G. Suttiffe 1920-5-30 Contra Costa Mt. Diablo Comment
  POM32378  Boisduvalia glabella Katherine Brandegee 1905-6-16 s.n. Contra Costa Antioch Comment
  JEPS2846  Bolboschoenus maritimus subsp. paludosus J. Burtt Davy 1897-9-4 4075 Contra Costa Stege; ; Stege, Contra Costa Co. Comment
  UC566857  Bowlesia incana H. L. Mason 1928-4-29 4419 Contra Costa Mount Diablo, Sycamore Canyon Sycamore Canyon; Mount Diablo, Sycamore Canyon Comment
  UC692369  Bowlesia incana Mary L. Bowerman 1931-3-21 591 Contra Costa Mount Diablo, Sycamore Canyon Sycamore Canyon; Mount Diablo, Sycamore Canyon Comment
  PASA1924  Bowlesia lobata Annetta Carter 1929-3-31 Contra Costa Hills north on Mt. Diablo. Near Clayton Comment
  UC1795724  Brachypodium distachyon Barbara Ertter, Mary Bowerman et al. 1995-5-7 14026 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, along road thru annual grassland with scattered blue oak south of Marsh Cr. Rd summit. 304 Comment
  CDA20615  Brassica juncea G. F. Hrusa 2006-1-18 s.n. Contra Costa San Francisco Bay Area; Residence in San Pablo at Stanton at San Pablo Ave. 0 Comment
  UC691067  Brassica rapa Mary L. Bowerman 1932-5-6 1409 Contra Costa Mount Diablo, w bank of Mitchell Canyon Mitchell Canyon; Mount Diablo, Mitchell Canyon 182 Comment
  CAS-BOT-BC36724  Brassica rapa R. E. Frenkel 1963-12-4 313 Contra Costa On California Highway 21, Market Plaza Center, Alamo. 79 Comment
  CAS-BOT-BC106276  Brickellia californica H. E. McMinn 1922-10-17 400 Contra Costa Mitchell Canyon, Mt. Diablo Comment
  CHSC116650  Briza minor Lowell Ahart; Josephine Guardino 2016-4-19 20789 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant .Below the high water line of Los Vaqueros Reservoir, 1.4 miles northwest of Los Vaqueros Reservoir Marina, 1,9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  JEPS116935  Brodiaea terrestris subsp. terrestris David Gowen 2008-4-27 873 Contra Costa Contra Loma Regional Park entrance at Black Diamond Mines Regional Preserve parking area at Frederickson Lane, south of parking area. Comment
  POM181436  Brodiaea terrestris subsp. terrestris I. L. Wiggins 1930-4-17 4573 Contra Costa Near Byron. Comment
  CAS-BOT-BC149351  Bromus berteroanus Edward Lee 1936-4-19 1970 Contra Costa San Francisco Bay. Red Rock. Northeast corner of the island. Comment
  UCR152271  Bromus carinatus Beecher Crampton 1960-3-29 5481 Contra Costa city of El Cerrito, corner of Carlson Blvd. and Lassen St. 5 Comment
  CDA31581  Bromus carinatus var. carinatus D. G. Kelch, A. G. Murdock 2004-4-11 4 .067 Contra Costa Carquinez Strait; Bull Valley Prairie. EBRPD. Between Crockett and Pt. Costa. Comment
  JEPS25124  Bromus carinatus var. carinatus G. Thomas Robbins 1959-4-18 3991 Contra Costa near and n of Point Richmond (w base of Potrero Hills, along Western Drive); Richmond, Potrero Hills, Western Drive 4 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
  UC697129  Bromus carinatus var. carinatus Mary L. Bowerman 1935-5-1 2947 Contra Costa West Road 6.7 mi from entrance, Mount Diablo West Road; Mount Diablo, West Road 640 Comment
  CAS-BOT-BC149541  Bromus carinatus var. carinatus R. E. Frenkel 1964-9-18 845 Contra Costa On Giant Road at its junction with Atlas Road, Richmond. 16 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
  SBBG115848  Bromus carinatus var. marginatus B. Crampton 1956-5-14 3393 Contra Costa ca. 7 mi SW of city of Antioch, just E of old mining town of Nortonville Comment
  CAS-BOT-BC156062  Bromus diandrus Walter Knight; Irja Knight; et al 1978-9-5 3219 Contra Costa Browns Island. Sandy Knoll. Comment
  CDA28880  Bromus diandrus D. G. Kelch 2006-5-7 6 .162 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  UC579864  Bromus diandrus Annetta Carter 1936-4-19 1128 Contra Costa San Francisco Bay, Red Rock Red Rock; San Francisco Bay, Red Rock Comment
  CAS-BOT-BC155470  Bromus hordeaceus Alice Eastwood 1921-4-18 10263 Contra Costa Antioch. Comment
  UC1618047  Bromus hordeaceus Donald G. Nelson 1937-3-30 477 Contra Costa s of Byron (on road to Tracy, along railroad tracks paralleling the highway) Comment
  CAS-BOT-BC155469  Bromus hordeaceus Mary L. Bowerman 1931-5-13 839 Contra Costa Mount Diablo. Pine Canyon floor one mile above the sulphur springs. Comment
  SEINET191356 Image available Bromus hordeaceus subsp. hordeaceus P. F. Knowles 1942-6-1 87 -10 Contra Costa CULTIVATED; Briones Hills Comment
  UCD58906  Bromus laevipes P. B. Kennedy Date Unknown s.n. Contra Costa Pinehurst. Comment
  UCD58920  Bromus laevipes P. B. Kennedy 1916-5-1 s.n. Contra Costa Pinehurst. Comment
  CAS-BOT-BC162352  Bromus madritensis Mary L. Bowerman 1935-5-16 2991 Contra Costa Mount Diablo. Russelman Park, at end of road. Comment
  SEINET191355 Image available Bromus madritensis P. F. Knowles B 139 Contra Costa CULTIVATED ; Briones Hills greenhouse Davis. Comment
  RSA655138  Bromus marginatus Beecher Crampton 1956-5-14 3393 Contra Costa 7 miles southwest of city of Antioch, just east of old mining town of Nortonville. Comment
  CDA29488  Bromus pseudolaevipes D. G. Kelch, Troy MacGregor 2009-5-1 9 .276 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  SEINET3923058  Bromus rigidus Beecher Crampton 1956-5-14 3378 Contra Costa Contra Costa County, 4.6 miles south of the city of Antioch, on Empire Mine Drive, at head of Horse Valley.; 0 Comment
  CDA23570  Bromus rubens D. G. Kelch, D. A. Weinstein 2008-4-25 8 .088 Contra Costa Alvarado Park (west end of Wildcat Canyon Park) on north-facing hillside above Hindu temple in mixed scrub/grassland. Comment
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Jan 7 2016
  UCD59633  Bromus rubens A. A. Beetle 1942-3-22 2930 Contra Costa Taber Island. Small island off SW side of Brooks Island in San Francisco Bay. Comment
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Aug 20 2011
  CAS-BOT-BC161949  Bromus rubens Mary L. Bowerman 1933-5-9 2039 Contra Costa Mount Diablo. East of Pioneer Camp. Comment
  CDA15253  Bromus stamineus G. F. Hrusa, D. Crowe 1998-5-8 14384 Contra Costa Sacramento Delta; Annual on edge of +- disturbed roadside adjacent to wetland in Dow Ecological Reserve on Dow Chemical property at Pittsburg. Uncommon here. Comment
  CDA29540  Bromus sterilis D. G. Kelch, Troy MacGregor 2009-5-1 9 .29 Contra Costa Carquinez Strait; Fernandez Ranch in valley bottom along Christie Rd. Comment
  UC2028418  Bromus sterilis Barbara Ertter 2001-5-10 17637 Contra Costa Mount Diablo, Juniper Trail above Laurel Dell Comment
  UC53715  Bromus trinii Jos. Burtt Davy 1900-3-24 6539 Contra Costa Point Richmond Comment
  UC692338  Bromus trinii Mary L. Bowerman 1935-4-17 2844 c Contra Costa North Road 2 mi from North Gate (immediately e of section line); Mount Diablo, North Road 304 Comment
  UC765774  Calandrinia breweri R. F. Hoover 1939-4-13 4019 Contra Costa head west branch Markley Canyon Comment
  CDA932  Calandrinia ciliata D. G. Kelch 2005-2-13 05 .007-B Contra Costa Carquinez Strait; Upper Canada de Cierbo. Comment
  JEPS48655  Calandrinia ciliata Elsa Kraeger 1926-5-7 Contra Costa near Toll Gate (road to Mt. Diablo) Comment
  UCD84952  California macrophylla Chuck Hughes 2010-3-31 224 Contra Costa About 0.3 mile north of Vasco Road. 357 Comment
  JEPS61610  Calochortus albus F. Hein 1931-4-14 Contra Costa St. Mary's College Comment
  UC1134541  Calochortus argillosus C. M. Belshaw 1936-5-13 2019 A Contra Costa 0.5 mi e Round Valley; Mt. Diablo Quad. 228 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
  JEPS112497  Calochortus luteus D. G. Kelch 2004-5-7 04 .180 Contra Costa Ca ada del Cierbo 40 Comment
  UC2028365  Calochortus luteus Barbara Ertter 1998-6-20 16259 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, NE base of Haystack Hill Comment
  CAS-BOT-BC132496  Calochortus pulchellus Alice Eastwood 1914-5-30 4442 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC132497  Calochortus pulchellus R. F. Hoover 1968-5-16 11092 Contra Costa Upper Marsh Creek Comment
  CAS-BOT-BC132501  Calochortus pulchellus Carl Purdy 1899-5-15 s.n. Contra Costa Mt. Diablo Comment
  HSC93902  Calochortus pulchellus C. Newberry 1994-4-30 7250 Contra Costa Mt. Diablo State Park, trail from Mitchell Canyon Parking to Donner Creek 900 Comment
  JEPS17770  Calochortus pulchellus Alice Eastwood 1899-5-21 Contra Costa Mount Diablo Comment
  POM169905  Calochortus pulchellus A. D. E. Elmer 1903-06 s.n. Contra Costa Mount Diablo Comment
  SBBG33410  Calochortus pulchellus A. D. E. Elmer -Jun-1903 4631 Contra Costa Mount Diablo Comment
  UC176356  Calochortus pulchellus R. P. Brandt 1914-5-2 Contra Costa near farm house, in branch of Pine Canyon Mt. Diablo, Pine Canyon Comment
  JEPS17793  Calochortus umbellatus W. L. Jepson 1899-4-19 Contra Costa Las Trampas Canyon Comment
  UCD139593  Calochortus umbellatus Rudolf Schmid 1997-4-8 1997 -2 Contra Costa Hillside Natural Area, El Cerrito; SW of Kent Dr. - Regency Ct. entrance, north side of junction of the two main fire roads. 575 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
  UC2028315  Calochortus venustus Barbara Ertter, Susan D'Alcamo 1998-6-12 16156 Contra Costa North Gate Road on west flank of Mount Diablo, ca 1/2 mile below upper Turtle Rock Ranch buildings. Comment
  HSC104418  Calystegia David Gowen 2005-5-29 396 Contra Costa West of Morgan Territory Rd. and the main entrance to Morgan Territory Regional Preserve; north of summit of hill 2581 (Tassajara Pk.?) Comment
  UC1794967  Calystegia malacophylla subsp. pedicellata R. K. Brummitt, J. Strother and B. Baldwin 1997-5-27 19606 Contra Costa Mount Diablo, W side, Murchio Gap 800 Comment
  JEPS75539  Calystegia purpurata P. F. Yorks 1974-5-19 164 Contra Costa on Hampton Road in Hampton Road Natural Reserve ca 2 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Reserve, n of Briones Reservoir 200 Comment
  JEPS111813 Image available Calystegia sepium subsp. binghamiae A. G. Murdock 2004-6-4 321 Contra Costa Pacheco Marsh Comment
  UC1594199  Calystegia sepium subsp. binghamiae Jerry Powell 1991-8-15 1614 Contra Costa Antioch National Wildlife Refuge Comment
  CAS-BOT-BC202026  Calystegia sepium subsp. limnophila J. W. Congdon 1893-7-30 s.n. Contra Costa Martinez Comment
  CAS-BOT-BC202027  Calystegia sepium subsp. limnophila Ira L. Wiggins 1954-9-5 13122 Contra Costa Levee along Bethel Island Comment
  CAS-BOT-BC418632  Calystegia sepium subsp. limnophila R. K. Brummitt; B. Ertter 2012-6-16 22059 Contra Costa Antioch, beside Plaza, at water's edge at upper end of Suisun Bay Comment
  CDA39892  Calystegia sepium subsp. limnophila A. G. Murdock 2004-6-4 321 Contra Costa Carquinez Strait Region; Pecheco Marsh. Comment
  CDA39896  Calystegia sepium subsp. limnophila T. C. Fuller 1964-11-6 12807 Contra Costa Northeast side of Bethel Island. 0 Comment
  JEPS47838  Calystegia subacaulis W. L. Jepson 1922-6-7 9719 a Contra Costa North Berkeley Hills Comment
  RSA0033851  Calystegia subacaulis Barbara Ertter 1999-7-17 16760 Contra Costa El Cerrito, west side of Arlington Ave. in small triangle of land between Moeser Ln. and Terrace Dr. Comment
  UC1784911  Calystegia subacaulis subsp. subacaulis Barbara Ertter with Elizabeth Neese 1988-4-24 7452 Contra Costa Black Diamond Mines Regional Preserve SW of Antioch, head of drainage between and parallel to Nortonville and Somersville roads Comment
  RSA181415  Camissonia campestris subsp. campestris James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  JEPS12784  Camissonia contorta Rimo Bacigalupi with G. T. Robbins 1955-5-4 4977 Contra Costa s. of and above Nortonville (site) 304 Comment
  UC874075  Camissoniopsis intermedia Lewis S. Rose 1941-5-15 41229 Contra Costa w. slope Mt. Diablo 274 Comment
  UC1861825  Camissoniopsis intermedia Barbara Ertter, Chris Thayer 1995-4-25 13989 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Devil's Slide area of Sycamore Canyon, roadside thru chaparral zone. 304 Comment
  CAS-BOT-BC266440  Campanula exigua Mrs. Ernest Meiere 1916-6-1 s.n. Contra Costa Mount Diablo Comment
  JEPS2508 Image available Campanula exigua Volney Rattan 1886-6-14 Contra Costa summit Monte Diablo; Summit of Mt. Diablo Comment
  SEINET10461961  Campanula exigua Edward L. Greene 1892-6-20 Greene s.n. Contra Costa Mount Diablo 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
  JEPS100084  Capsella bursa-pastoris G. Smick 2003-4-3 GAS 121 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2029104  Cardamine Barbara Ertter 2000-3-30 16921 Contra Costa North side of Mount Diablo, lower end of Back Canyon Trail. Comment
  CAS-BOT-BC37396  Cardamine californica Annetta Carter; Helen Sharsmith 1940-3-17 1498 Contra Costa Near Stege railroad station two miles southeast of Richmond. 7 Comment
  CDA37281  Cardamine californica D. G. Kelch 2011-3-31 11 .074 Contra Costa Carquinez Strait Region; Richmond, near Point Pinole Regional Park. Comment
  JEPS111860  Cardamine californica D. G. Kelch 2004-3-12 04 .23 Contra Costa Pinole Valley Hillside and canyon above Wright Road. Off of Pinole Valley Road 140 Comment
  SBBG29852  Cardamine californica A. Carter, H. Sharsmith 1940-3-17 1498 Contra Costa near Stege Railroad Stn, 2 mi SE of Richmond 7 Comment
  UC517996  Cardamine californica John Thomas Howell 1931-3-10 5757 Contra Costa on Livermore Road 7 mi from Clayton (e side Mt. Diablo); e side Mt. Diablo Comment
  UC2027753  Cardamine hirsuta Barbara Ertter 1997-2-11 15455 Contra Costa north side of Mount Diablo, Mitchell Canyon trailhead parking area, trodden ground. Comment
  UCD114568  Cardamine oligosperma Terri Williamson 1990-4-10 1 Contra Costa 212 Poshard Street, Pleasant Hill. 12 Comment
  CDA935  Cardaria chalepensis D. G. Kelch 2006-5-2 6 .214 Contra Costa Carquinez Strait; Fernandez Ranch; W. Christie Rd. Comment
  CAS-BOT-BC281738  Carduus pycnocephalus John Thomas Howell 1933-5-14 11246 Contra Costa Hills E of St Mary's College Comment
  UC517456  Carduus pycnocephalus subsp. pycnocephalus J. Thomas Howell 1933-5-14 11246 Contra Costa hills e of St. Mary's College 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
  CDA33124  Carex barbarae D. G. Kelch, A. G. Murdock 2004-7-9 04 .305-B Contra Costa Carquinez Strait; Alhambra Creek, Martinez, near Muir gravesite, Arroyo del Hambre. Comment
  UC691965  Carex barbarae Mary L. Bowerman 1983-9-9 2433 Contra Costa Frog Pond, W side Mount Diablo Comment
  CAS-BOT-BC19207  Carex barbarae Walter Knight; B. Atwater; R. Bensler; J. Dean; B. Mortensen 1979-4-13 3365 Contra Costa Alder Point. Browns Island. Comment
  CAS-BOT-BC19209  Carex barbarae L. R. Abrams 1916-7-30 5723 Contra Costa Mt. Diable near the lake. Comment
  CDA32069  Carex barbarae D. G. Kelch 2006-3-18 6 .105 Contra Costa 2 km N-NW of Orinda Village. NW of corner of San Pablo Dam Rd & Bear Valley Rd. 0 Comment
  CDA32037  Carex gracilior D. G. Kelch 2006-3-18 6 .104 Contra Costa 2 km N-NW of Orinda Village. NW of corner of San Pablo Dam Rd & Bear Valley Rd. 0 Comment
  JEPS99504  Carex nudata Mary L. Bowerman Apr 1977 Contra Costa Mount Diablo, Sycamore Creek Canyon. 243 Comment
  CAS-BOT-BC119014  Carex pellita Miss Mary Leolin Bowerman 1935-5-16 3000 Contra Costa Russelmann Park road at Gregory Ranch junction. 289 Comment
  UC2028444  Carex serratodens Barbara Ertter with Chris Thayer 1996-10-25 15374 Contra Costa West side of Mount Diablo, North Gate Road 1 road mile NW of Burma Road Comment
  UC692013  Carex serratodens Mary L. Bowerman 1932-11-19 1653 Contra Costa Elder Spring Mount Diablo Comment
  CAS-BOT-BC117552  Carex serratodens Miss Mary Leolin Bowerman 1938-5-28 3640 Contra Costa Patens Spring (North Road, 1800 feet). 548 Comment
  JEPS105722  Carex serratodens David Gowen 2004-9-13 160 Contra Costa Mt. Diablo State Park. Johnny Walker Spring, which is ca. .2 mile above the junction of Angel Kerley Rd. (fire trail) and North Gate Rd., approx. 2200' elev. Comment
  JEPS105724  Carex serratodens David Gowen 2004-9-13 158 Contra Costa Mt. Diablo State Park. Gully west of chaparral area, ca. 1.9 miles from north entrance on North Gate Road. Above the road in the stream bed that cuts along a serpentine slope. Comment
  POM300642  Carex serratodens Mary L. Bowerman 1938-5-28 3640 Contra Costa Patens Spring (North Road). Mount Diablo. 549 Comment
  JEPS25119  Carex subbracteata G. Thomas Robbins 1959-4-18 3985 Contra Costa 1/2 mi e Pt. San Pablo (overlooking San Pablo Bay); San Pablo Bay, Richmond 7 Comment
  UC2028500  Carex subbracteata Barbara Ertter 1999-3-21 16491 Contra Costa NW corner of Miller Knox Regional Shoreline, Protero Hills SW of Richmond Comment
  CDA963  Carex tumulicola D. G. Kelch 2006-5-5 6 .131 Contra Costa East Bay; Wildcat Canyon Regional Park. Near Wildcat Canyon Road terminus. Comment
  JEPS73301  Castilleja L. R. Heckard 1973-6-6 3422 Contra Costa ravine behind La Moine Park; Richmond 121 Comment
  CDA966  Castilleja affinis D. G. Kelch 2005-6-14 5 .332 Contra Costa East Bay; San Pablo. North Alvarado Park, south of San Pablo Dam Rd. Comment
  UCD122150  Castilleja affinis August Hartman 1960-4-19 7 Contra Costa Along North Gate Road on Mt. Diablo. 609 Comment
  JEPS43525  Castilleja affinis subsp. affinis August Hartman 1960-4-19 6 D Contra Costa North Gate Road on Mt. Diablo; Mt. Diablo 609 Comment
  UC26404  Castilleja affinis subsp. affinis W. H. Brewer 1862-5-15 1093 Contra Costa Kirker Pass 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
  JEPS102905  Castilleja applegatei subsp. martinii Barbara Ertter 2002-6-22 17959 Contra Costa Falls Loop Trail in Donner Basin, S side of Wild Oat Canyon Mount Diablo 213 Comment
  JEPS15197  Castilleja attenuata C. M. Belshaw 1936-5-11 2097 Contra Costa 5.25 mi e Danville; Mt. Diablo Quad. 289 Comment
  UC1952816  Castilleja densiflora Barbara Ertter 2010-5-12 19831 Contra Costa Miller Knox Regional Shoreline at south edge of Point Richmond; along West Ridge Trail Comment
  RSA0069378  Castilleja exserta Katie Gallagher, Nick Jensen 2014-4-26 211 Contra Costa Las Trampas Regional Wilderness. 487 Comment
  JEPS10339  Castilleja exserta subsp. exserta W. L. Jepson 1923-4-22 9859 Contra Costa Mt. Diablo Comment
  JEPS74806  Castilleja exserta subsp. exserta L. R. Heckard, T. I. Chuang and R. Bacigalupi 1975-5-7 4014 Contra Costa ca 0.5 mi e Pinole (just of of Interstate Hwy 80, along main route of Santa Fe Railroad) Comment
  UC1301202  Castilleja exserta subsp. exserta Helen K. Sharsmith 1963-4-7 5289 Contra Costa w of Antioch (e side of Kirker Pass road); San Francisco Bay Region 152 Comment
  UC27266  Castilleja exserta subsp. exserta State Survey 1117 Contra Costa near Clayton; Kirker Pass Summit Comment
  CAS-BOT-BC241277  Castilleja latifolia Alice Eastwood 1915-6-21 4740 Contra Costa San Leandro Comment
  CDA41397  Castilleja rubicundula subsp. lithospermoides A. G. Murdock 2003-6-24 114 Contra Costa Carquinez Strait; Near upper trail on north side of Mount Wanda, Martinez. Comment
  UC691574  Castilleja rubicundula subsp. lithospermoides Mary L. Bowerman 1933-5-11 2081 Contra Costa ridge towards w end Inner Black Hills (on s side); Mount Diablo Comment
  JEPS116912  Caulanthus lasiophyllus David Gowen 2009-4-4 978 Contra Costa West face near summit of hill east of Las Trampas Ridge, just northwest of junction of Del Amigo and Sulpher Springs trails. Comment
  UC2070556  Caulanthus lasiophyllus Barbara Ertter with David Gowen and Mike Park and Victoria Seidman 2004-4-20 18360 Contra Costa Eagle Peak Trail on east side of Twin Peaks, north side of Mount Diablo. Comment
  JEPS42089  Ceanothus cuneatus var. cuneatus W. L. Jepson 1923-3-11 9847 Contra Costa Black Hills Mt. Diablo Comment
  SBBG68364  Ceanothus cuneatus var. ramulosus H. E. McMinn -- Contra Costa Mt Diablo Comment
  UCSB22769  Ceanothus cuneatus var. ramulosus Jones, D. 1967-3-25 Contra Costa Along nature trail at park headquarters, Mt. Diablo State Park. 475 Comment
  CAS-BOT-BC49716  Ceanothus cuneatus var. rigidus Brandegee 93 Contra Costa Nortonville Comment
  OBI10513  Ceanothus gloriosus var. exaltatus Robert F. Hoover 1962-3-23 8541 Contra Costa Cultivated in Tilden park botanic garden. Originally from 11 mi S of Guerneville (8 mi W of Sebastopol, Sonoma Co) Comment
  JEPS42416  Ceanothus oliganthus var. sorediatus W. L. Jepson 1943-4-24 20763 Contra Costa Moraga Ridge Oakland Hills Comment
  UC1178020  Centaurium muehlenbergii Herbert L. Mason 1955-7-14 14637 Contra Costa 0.5 mi e Antioch Bridge Comment
  UC1069518  Centromadia fitchii H. S. Yates 1934-9-2 4086 Contra Costa 2 mi s Mt. Diablo; Mt. Diablo Quad. 579 Comment
  UC2028246  Centromadia fitchii Barbara Ertter, Tony Morosco 1998-9-18 16416 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, Valley Vista Road entrance. Comment
  UC615580  Centromadia fitchii Beryl O. Schreiber 1933-10-5 938 Contra Costa road to Mt. Diablo Comment
  SD175794  Centromadia pungens D. G. Kelch 2005-11-23 06 507 B Contra Costa Point Molate. 4 Comment
  UC1238115  Centromadia pungens subsp. pungens A. P. N. 1961-4-6 713 Contra Costa on Byron Road 3 mi s Byron (old roadbed near Southern Pacific Railroad crossing) Comment
  UC89008  Centromadia pungens subsp. pungens Mrs. K. Brandegee 1892-6-1 Contra Costa Antioch Comment
  CAS-BOT-BC279191  Centromadia pungens subsp. pungens Niall McCarten; V. I. Dains 1986-1-1 04131748 Contra Costa E. of Byron Hot Springs Rd. Comment
  JEPS111075  Centunculus minimus Lee Echols 2003-4-15 s.n. Contra Costa S of Lark Drive and N of EPA Building, within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond 15 Comment
  JEPS111792  Cerastium fontanum subsp. vulgare D. G. Kelch 2005-5-13 05 .248 Contra Costa Martinez. South of oil refinery along Railroad tracks in fragment of habitat 28 Comment
  CAS-BOT-BC137009  Cercocarpus betuloides var. betuloides Mary L. Bowerman 1932-9-3 1538 Contra Costa Mount Diablo. Summit Comment
  UC2062626  Chamaesyce maculata Barbara Ertter with John Ginochio 2002-6-1 17945 Contra Costa Ginochio house on south side of North Gate Road on NW base of Mount Diablo, lower Arroyo del Cerro. Comment
  UC2062625  Chamaesyce serpyllifolia var. serpyllifolia Barbara Ertter with John Ginochio 2002-6-1 17944 Contra Costa Ginochio house on south side of North Gate Road on NW base of Mount Diablo, lower Arroyo del Cerro. Comment
  CAS-BOT-BC66367  Cheilanthes covillei Mary L. Bowerman 1931-5-7 801 Contra Costa North Peak ridge Comment
  UC691917  Chenopodium berlandieri Mary L. Bowerman 1932-9-3 1537 Contra Costa roadside just below Meridian Peak summit; Mount Diablo Comment
  UC14076  Chenopodium californicum Chesnut and Drew 1889-4-18 Contra Costa Antioch; sand hills Comment
  CAS-BOT-BC497665  Chlorogalum pomeridianum Alice Eastwood 1927-5-19 11434 Contra Costa Byron Springs Comment
  JEPS61570  Chlorogalum pomeridianum var. pomeridianum Edw. L. Greene 1889-5-23 Contra Costa Byron Springs Comment
  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
  UC52588  Chorizanthe membranacea W. H. Brewer 1862-5-17 1104 Contra Costa canyon n Monte Diablo; canyon n of Monte Diablo (Mount Diablo?) Comment
  JEPS77018  Chrysolepis chrysophylla var. minor Robert M. Lloyd 1963-3-17 Contra Costa on Skyline across from 7090 Skyline Drive (0.5 mi e of intersection of Grizzly Peak Road and Skyline Drive); Skyline Drive, Huckleberry Trail Comment
  SJSU352  Chrysolepis chrysophylla var. minor A. W. Jacobs 1937-8-28 Contra Costa Moraga Ridge Comment
Read comments
Jan 16 2012
  JEPS89253  Cicendia quadrangularis J. B. Davy 1900-3-24 6516 Contra Costa Pt. Richmond Comment
  UC691835  Cicendia quadrangularis Mary L. Bowerman 1942-5-24 3842 Contra Costa Fossil Ridge Mount Diablo (lower Rock City Camp) 457 Comment
  CHSC75054  Cichorium intybus Roger Thom 1987-5-26 16 Contra Costa 1900 block of Geary Rd. Walnut Creek 30 Comment
  UC20919  Cicuta maculata var. bolanderi Jos. Burtt Davy 1900-6-7 6668 Contra Costa near Martinez Comment
  UC1789151  Cinnamomum camphora Barbara Ertter 2001-5-26 17653 Contra Costa Stamm Unit of Antioch Dunes National Wildlife Refuge east of Antioch, two young individuals at base of river bank. Comment
  UC691389  Cirsium cymosum var. cymosum Mary L. Bowerman 1933-6-20 2323 Contra Costa Median Ridge Donner Canyon Comment
  UC1953204  Cirsium occidentale David Keil with Barbara Ertter et al. 2000-6-18 28815 B Contra Costa Mount Diablo State Park. Lower part of Jumper [Juniper] Trail above Laurel Dell picnic area. Comment
  RSA770014  Cirsium occidentale David J. Keil, Barbara Ertter, et al. 2000-6-18 28815 A Contra Costa Mount Diablo State Park. Lower part of Jumper Trail above Laurel Dell picnic area 915 Comment
  RSA0070867  Cirsium quercetorum J. T. Howell 1938-6-30 13940 Contra Costa Berkeley Hills on NE slope near head of Wildcat Canyon. Comment
  CAS-BOT-BC285728  Cirsium vulgare Walter Knight 1978-8-27 3194 Contra Costa Contra Loma Regional Park 30 Comment
  UC1782176  Citrullus colocynthis var. lanatus Rudolf Schmid 2003-9-13 2003 -15 Contra Costa vacant lot, 24 Edwin Dr., Kensington 169 Comment
  UC112975  Clarkia affinis Katharine Brandegee 1907-6-16 Contra Costa hills between Antioch and Marsh Creek Comment
  UC1818926  Clarkia affinis Barbara Ertter, Mary Bowerman 1995-6-11 14255 Contra Costa Shell Ridge Recreation Area southeast of Walnut Creek, bank of Indian Creek above Indian Valley Pond, partial sun on Franciscan layer. 76 Comment
  CAS-BOT-BC162563  Clarkia affinis Mary L. Bowerman 1933-5-17 2095 Contra Costa Branch of Curry Canyon due south of Olafsons' barn - Mount Diablo Comment
  UC1072046  Clarkia affinis H. Lewis and C. Epling 1947-5-4 199 Contra Costa 0.2 mi s 14 mile house (Livermore to Mt. Hamilton road) Comment
  UC2028167  Clarkia affinis Barbara Ertter 1998-5-3 16077 Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, near Wall Point. Comment
  UCD35144  Clarkia affinis Beecher Crampton 1950-4-2 524 Contra Costa Contra Costa CountyL Site of Judsonville. Comment
  UCD104019  Clarkia amoena Beecher Crampton 1949-7-3 475 Contra Costa San Pablo Creek Valley, east of San Pablo Ridge, along road to Orinda. Comment
  RSA0059973  Clarkia amoena subsp. amoena H. de Forest 1930-6-29 s.n. Contra Costa Dry bank on Tunnel Rd. Comment
  UC306514  Clarkia biloba A. D. E. Elmer May, 1903 4319 Contra Costa Mount Diablo Comment
  CAS-BOT-BC163604  Clarkia biloba subsp. biloba A. D. E. Elmer 1903-5-1 4319 Contra Costa Mt. Diablo Comment
  POM32522  Clarkia biloba subsp. biloba A. D. E. Elmer 1903-05 4319 Contra Costa Mount Diablo. Comment
  CAS-BOT-BC163609  Clarkia biloba subsp. biloba Mary L. Bowerman 1935-6-15 3139 Contra Costa Eagle Point ridge below Ransom Point 822 Comment
  LA206006  Clarkia biloba subsp. biloba H. Lewis; M. Lewis 1947-6-15 442 Contra Costa Martiney - Port Costa Road, 2.7 mi. N of Martiney City Limit Comment
  LA45413  Clarkia concinna Joseph Andorfer Ewan; 1934-5-20 8932 Contra Costa Mt. Diablo, Russelmann Park Comment
  UC2029141  Clarkia concinna Barbara Ertter with Alan Prather 2003-6-7 18213 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, Coyote Trail. Comment
  JEPS111558  Clarkia concinna subsp. concinna A. G. Murdock 2003-6-24 117 Contra Costa Vaca Canyon Alhambra Valley Road on south bank 165 Comment
  JEPS75483  Clarkia concinna subsp. concinna P. F. Yorks 1975-6-10 432 Contra Costa ca. 1.9 km s Bear Creek Road (on Hampton Rd., n of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  UC2028989  Clarkia concinna subsp. concinna Barbara Ertter 2000-5-14 17005 Contra Costa Donner Canyon on north side of Mount Diablo, serpentinitic sites in general area of junction of Donner Canyon, Cardinet Oaks, and Meridian Ridge roads, edged by Arctostaphylos glauca et al. Comment
  UC1818899  Clarkia gracilis subsp. gracilis Barbara Ertter, Mary Bowerman 1994-6-19 12853 a Contra Costa Mt. Diablo State Park east of Walnut Creek; scrub oak thicket north of road, north of lower summit parking lot, next to drainage on north facing slope. Comment
  RSA355431  Clarkia heterandra Anstruther Davidson 1917-07 3289 Contra Costa Mt. Diabolo [Diablo] Comment
  UC20033  Clarkia modesta F. P. McLean Contra Costa Mt. Diablo Comment
  RSA0031307  Clarkia purpurea Barbara Ertter 2000-5-14 16996 Contra Costa Lower Donner Canyon on north side of Mount Diablo, on Hetherington Trail. 274 Comment
  CAS-BOT-BC163668  Clarkia purpurea subsp. quadrivulnera Mary L. Bowerman 1931-5-13 844 Contra Costa Mount Diablo. Pine Canyon floor one mile above the Sulphur Spring Comment
  CAS-BOT-BC163673  Clarkia purpurea subsp. quadrivulnera L. R. Abrams 1921-5-26 8048 Contra Costa At spring 4 1/2 mi from Summit, Mt. Diablo Comment
  CDA9193  Clarkia purpurea subsp. quadrivulnera Christopher Thayer 1995-5-2 s.n. Contra Costa Carquinez Strait; Carquinez Scenic Dr near Ozol entrance gate. 0 Comment
  POM300659  Clarkia purpurea subsp. quadrivulnera Mary L. Bowerman 1930-6-5 263 Contra Costa Mount Diablo: west road 5.8 miles from entrance 457 Comment
  RSA113670  Clarkia rubicunda Peter H. Raven 1957-6-20 10950 Contra Costa Inspiration Point, east end of Tilden Regional Park 366 Comment
  POM32263  Clarkia rubicunda subsp. blasdalei Katherine Brandegee 1908-7-3 s.n. Contra Costa Point Isabel, north side Comment
  JEPS100002  Clarkia unguiculata G. Smick 2003-5-20 GAS 194 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD36022  Clarkia unguiculata Beecher Crampton 1949-6-5 467 Contra Costa At base of Mount Diablo, on road from Byron to Clayton (Highway 4), along banks of Marsh Creek. 152 Comment
  CDA33794  Claytonia exigua D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .111 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  JEPS43337  Claytonia exigua subsp. exigua H. L. Mason 1931-4-5 Contra Costa se of Mt. Diablo (on road from Marsh Creek to Livermore); Upper Marsh Creek Comment
  JEPS68969  Claytonia exigua subsp. exigua Edward Lee 1935-3-10 1303 Contra Costa Nortonville , Kirker Creek (s watershed Kirker Creek) Comment
  POM300714  Claytonia exigua subsp. exigua Mary L. Bowerman 1932-3-12 1110 Contra Costa Alamo Canyon; East-facing bank fifteen ft. above the stream. 351 Comment
  CAS-BOT-BC439330  Claytonia gypsophiloides H. M. Hall 1901-4-5 1759 Contra Costa Region of San Francisco Bay. Mt. Diablo 1158 Comment
  SEINET198599 Image available Claytonia gypsophiloides P. Kamb, F Chisaki 1950-3-18 1638 Contra Costa Saddle betwee4n N and S peaks of Mt. Diablo 880 Comment
  JEPS112036  Claytonia parviflora D. G. Kelch 2003-3-21 03 .64 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 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-BC439437  Claytonia parviflora subsp. parviflora Mary L. Bowerman 1932-3-12 1111 Contra Costa Mount Diablo. Alamo Canyon 350 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
  JEPS99970  Claytonia perfoliata subsp. perfoliata S. O'Neil 2003-2-18 SEO 5 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1057451  Claytonia perfoliata subsp. perfoliata G. Thomas Robbins 1937-4-25 148 Contra Costa 2 mi e Alamo Comment
  UC615386  Claytonia perfoliata subsp. perfoliata Beryl O. Schreiber 1932-2-28 32 Contra Costa near Concord Comment
  CAS-BOT-BC91356  Clematis lasiantha V. Rattan 1883-4-1 s.n. Contra Costa Martinez. Comment
  CAS-BOT-BC91357  Clematis lasiantha V. Rattan 1883-4-1 s.n. Contra Costa Martinez. Comment
  CAS-BOT-BC91359  Clematis lasiantha H. E. McMinn 1922-6-2 134 Contra Costa Mount Diablo. Comment
  CAS-BOT-BC91360  Clematis lasiantha Alice Eastwood 1915-5-30 4460 Contra Costa Mount Diablo. Comment
  OBI19648  Cleome hassleriana Harry Morten 1964-10-11 s.n. Contra Costa Lower end of San Joaquin Valley, 5 mi E of Byron Comment
  UCSC006802  Collinsia Randall Morgan 1988-4-29 1151 Contra Costa Scree at NW slope of Twin Peaks, Mt. Diablo Comment
  JEPS7320  Collinsia heterophylla Mary L. Bowerman 1935-3-16 2739 Contra Costa Mount Diablo, e fork of Arroyo del Cerro Arroyo del Cerro; Mount Diablo, Arroyo del Cerro 262 Comment
  UCSC006563  Collinsia heterophylla Randall Morgan 1988-4-29 1152 Contra Costa NW slope of Twin Pks, Mt. Diablo Comment
  JEPS3891  Collinsia sparsiflora var. collina Lauramay Tinsley 1929-3-27 Contra Costa Mount Diablo Comment
  UC1795634  Collinsia sparsiflora var. collina Barbara Ertter, Brad Olson 1992-4-13 10951 Contra Costa Mount Diablo State Park, Knobcone Point Road E of Curry Point 518 Comment
  UC26642  Collinsia sparsiflora var. collina State Survey Contra Costa Mount Diablo Comment
  UC26660  Collinsia tinctoria Edw. L. Greene Jun 1892 Contra Costa Mount Diablo Comment
  JEPS7306  Collinsia tinctoria W. L. Jepson 7612 Contra Costa North Peak; Mount Diablo 914 Comment
  SEINET3860930  Collomia diversifolia David Gowen 2005-5-28 395 Contra Costa Mt. Diablo State Park, on Meridian Ridge Rd. (dirt fire road), east of Murchio Gap.; 0 Comment
  RSA29682  Conium maculatum Joseph A. Ewan 1936-7-5 9727 Contra Costa Wildcat Creek Comment
  CDA3510  Consolida ambigua O. Moss 1970-6-3 Contra Costa Empire Mine Road, Brentwood. 0 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
  UC1123580  Convolvulus arvensis C. M. Belshaw 1936-5-11 2100 Contra Costa 2 1/2 mi ese Danville (Plot 19); Mt. Diablo Quadrangle 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
  UCD58755  Convolvulus simulans Glen Holstein 2007-5-1 s.n. Contra Costa Near entrance to Roddy Ranch Golf Course at southeast edge of Antioch. There is a large stock pond about 100 m NW of the entrance. The collection was in disked pasture 100 m west of the pond. Comment
  UC691785  Conyza canadensis Mary L. Bowerman 1930-10-4 477 Contra Costa Maple Spring Mount Diablo, Maple Spring Comment
  UC1050401  Coprosma areolata N. Floy Bracelin 1941-9-21 1646 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1005958  Coprosma baueri N. Floy Bracelin 1942-5-10 2071 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS83160  Cordylanthus mollis subsp. mollis Jim Parker 1985-6-26 Contra Costa along slough just n BM 7 Hastings (s of Suisun Bay, between Martinez (to w) and Port Chicago); Concord Naval Weapons Station, Hastings Slough Comment
  JEPS55940  Cordylanthus nidularius T. I. Chuang and L. R. Heckard, R. Bacigalupi 1968-6-27 6436 Contra Costa 3/4 mi ne of Deer Flat (ne flank of Bald Ridge, Mount Diablo); Mount Diablo, Bald Ridge 670 Comment
  SEINET12765203  Cordylanthus pilosus subsp. pilosus Barbara Ertter, Lynne Hosley 1992-8-29 11266 Contra Costa East of Moutn Diablo in canyon along Coyote Trail.; 0 Comment
  CAS-BOT-BC209750  Cornus glabrata V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Comment
  CAS-BOT-BC209589  Cornus sericea H. E. McMinn 1922-5-30 34 Contra Costa By Pinehurst Resort in Large Redwood Canyon Comment
  UC70655  Cornus sericea subsp. sericea Jos. Burtt Davy 1895-1 Contra Costa Morago Pass 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
  UC2028595  Cortaderia selloana Barbara Ertter 1998-11-15 16459 Contra Costa North side Mount Olympia on north side Mount Diablo. Comment
  CAS-BOT-BC169513  Corylus cornuta subsp. californica Frank W. Gould 1940-2-8 865 Contra Costa N side of Grizzly Peak 76 Comment
  UC2029109  Cotula australis Barbara Ertter 1990-5-16 8992 Contra Costa South El Cerrito, corner of San Pablo Avenue and Carlson Blvd. Comment
  UC2032803 Image available Cotula australis Doran, Andrew Scott 2012-3-20 673 Contra Costa Brooks island loading dock, North side of island. Comment
  UC2028452  Cotula coronopifolia Barbara Ertter with Joanne Kerbavaz 2000-8-20 17503 Contra Costa Frog Pond on southeast side of Mount Diablo Comment
  CAS-BOT-BC291337  Cotula coronopifolia Walter Knight; et al 1979-4-13 3359 Contra Costa Point Emmet, Browns Island 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
  JEPS65181  Crassula aquatica L. R. Heckard 1971-4-15 2486 Contra Costa s. Byron (field at intersection of Holey Rd.) Comment
  JEPS25357  Crassula solieri Rimo Bacigalupi with Paul C. Hutchison and John Weiler 1959-3-19 6968 Contra Costa 1 mi. s.e. Byron (fields e. of <Bryon> rd.) 6 Comment
  CAS-BOT-BC427924  Crassula solieri Brandegee No date on label s.n. Contra Costa Antioch Comment
  UC2028072  Crassula tillaea Barbara Ertter with Tony Morosco 1998-4-12 15995 Contra Costa Base of Mount Olympia on north side of Mount Diablo, base of quarry NE of Olympia Trail. Comment
  JEPS52457  Croton californicus W. L. Jepson 1923-10-4 10211 Contra Costa Antioch Comment
  RSA181360  Croton californicus James I. McMurphy 1908-10-18 s.n. Contra Costa Antioch. Comment
  RSA201184  Croton californicus Peter Rubtzoff 1951-10-7 827 Contra Costa Along lower San Joaquin River, east of Antioch. Comment
  CDA15277  Croton setiger G. F. Hrusa, D. Crowe, R. York 1998-7-17 14714 Contra Costa Sacramento Delta; E end of Dow Chemical property. Comment
  CHSC23346  Croton setiger Willis Ball 1975-6-1 531 Contra Costa Contra Loma Regional Park. In area #7 on w side of road ca. 10 yds n of main entrance to park. 60 Comment
  CAS-BOT-BC190136  Crypsis vaginiflora Walter Knight 1977-7-20 s.n. Contra Costa Briones Ridge, Briones Regional Park. 304 Comment
  UC762391  Cryptantha decipiens R. F. Hoover 1938-5-4 3347 Contra Costa Peak E of Tassajero Creek 762 Comment
  UC691395  Cryptantha flaccida Mary L. Bowerman 1930-6-7 269 Contra Costa Mount Diablo summit Mount Diablo Comment
  UC55905  Cryptantha microstachys Jos. Burtt Davy 1901-4-21 7046 Contra Costa Wildcat Canyon Comment
  JEPS99579  Cryptantha microstachys Mary Bowerman 1978-5-14 Contra Costa Mount Diablo, East side of Eagle Peak, old mine wagon trail up Back Cannyon. Area of August 1977 burn. Comment
  UC2042963  Cryptantha muricata Barbara Ertter with David Gowen and Chris Thayer 2014-4-12 21712 Contra Costa Small ridge on north side of Prospectors GAp Road, just north of Ginochio property on east side of Mount Diablo. Comment
  UC691349  Cryptantha muricata Mary L. Bowerman 1934-4-21 2536 Contra Costa Muir Area Mount Diablo Comment
  CDA21191  Cuscuta japonica R. Fonseca 2006-12-12 PDR 1373709 Contra Costa San Francisco Bay Area; 654 Marlesta Rd, Pinole. Sheet 1 of 2. 0 Comment
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Apr 29 2013
  CDA33492  Cuscuta japonica Yost 2008-7-17 PDR# 1454020 Contra Costa Antioch; 5124 Paddock Ct. 0 Comment
  UCD126325  Cuscuta salina M. Wiesendanger 1926-6-1 1533 Contra Costa Richmond. Comment
  JEPS124470  Cuscuta subinclusa Daniel Slakey with CNPS Volunteers 2015-7-6 143 Contra Costa Mt. Diablo, about 200 m north of Frog Pond, near stream. Comment
  UC691907  Cuscuta subinclusa Mary L. Bowerman 1933-9-9 2428 Contra Costa e of Frog Pond; Mount Diablo, Rhine Canyon 457 Comment
  UC691908  Cuscuta subinclusa Mary L. Bowerman 1932-10-16 1633 Contra Costa Donner Canyon trail Mount Diablo Comment
  CDA15228  Cynara cardunculus G. F. Hrusa, D. Crowe 1998-5-8 14357 Contra Costa Sacramento Delta; Dow Chemical at Pittsburg. Comment
  UCD33766  Cynara cardunculus Beecher Crampton 1972-11-21 8888 Contra Costa 2 miles east of Crockett. Comment
  UC692432  Cynodon dactylon Mary L. Bowerman 1936-8-17 3526 Contra Costa Sulphur Spring in Pine Canyon Mount Diablo; , Sulphur Spring in Pine Canyon 137 Comment
  JEPS100020  Cynosurus echinatus S. O'Neil 2003-5-30 SEO 36 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  SEINET3840900  Cyperus difformis Unknown 2006-9-15 6 .474 Contra Costa Martinez, Shell Avenue, between Pine Street and Harborview Drive 60 Comment
  CAS-BOT-BC114613  Cyperus eragrostis James McMurphy 1908-10-18 s.n. Contra Costa Antioch Comment
  UC2028449  Cyperus niger Barbara Ertter with Chris Thayer 1996-10-25 15387 Contra Costa West side of Mount Diablo, South Gate Road just south of junction at Mountain House Creek crossing Comment
  SD45084  Cytisus canariensis W. W. Jones 1927-4-5 Contra Costa Crockett Comment
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Jul 11 2010
  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
  JEPS100018  Dactylis glomerata S. O'Neil 2003-5-8 SEO 33 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CDA29567  Danthonia californica D. G. Kelch, Troy MacGregor 2009-5-1 9 .289 Contra Costa Carquinez Strait; Fernandez Ranch in valley bottom along Christie Rd. Comment
  CDA1575  Danthonia californica var. californica D. G. Kelch 2002-5-24 2 .02 Contra Costa Carquinez Strait; Crockett. On hill S of San Pablo Ave ~0.4 miles W of Carquinez Bridge. Comment
  UC2028471  Datura wrightii Barbara Ertter 1997-8-18 15767 Contra Costa Adjacent to Antioch Dunes NWR east of Antioch, sand Comment
  JEPS111707  Deinandra corymbosa D. G. Kelch 2004-5-7 04 .179 Contra Costa Ca ada del Cierbo Ca ada del Cierbo 40 Comment
  SEINET3147522  Deinandra kelloggii K. Brandegee 1907-5-5 19 Contra Costa Near Antioch Comment
  UC990569  Deinandra kelloggii James I. McMurphy 1909-5-21 Contra Costa Antioch Comment
  CAS-BOT-BC291811  Deinandra lobbii John Thomas Howell 1933-9-17 11663 Contra Costa Hills south of Rodeo Comment
  JEPS105695  Deinandra lobbii David Gowen 2004-5-29 101 Contra Costa Lime Ridge Open Space. Summit area just south of the antenna facility. Comment
  JEPS111750  Delairea odorata D. G. Kelch 2005-4-15 05 .140 Contra Costa Rodeo Creek EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump) 220 Comment
  SEINET12087144  Delphinium decorum J. T. Howell 1933-1 11279 Contra Costa Hills E of St. Mary's College Comment
  RSA148149  Delphinium hansenii Harlan Lewis, C. Epling 1947-5-4 703 Contra Costa Marsh Creek Road, 5.8 miles E of Curry Creek Park Road Comment
  JEPS105716  Delphinium hansenii subsp. hansenii David Gowen 2004-5-1 55 Contra Costa Black Diamond Mines Regional Preserve. North-facing slopes above Lower Oil Canyon road. Comment
  UC9187  Delphinium hesperium G. Survey 1862-5-29 1185 Contra Costa dry hill Mount Diablo, Marsh ranch Comment
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Jan 20 2008
  POM300586  Delphinium hesperium Mary L. Bowerman 1931-5-2 786 Contra Costa Foot of Eagle Point ridge: Grassy slope at edge of wooded hill Comment
  JEPS6231  Delphinium hesperium subsp. hesperium Willis L. Jepson May 23-24 1891 21394 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC10014  Delphinium hesperium subsp. pallescens A. A. Heller 1908-4-17 8906 Contra Costa Hills, three miles south of Antioch,. 18 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
  LA207542  Delphinium hesperium subsp. pallescens H. Lewis; Carl Epling 1944-6-5 sn Contra Costa 1 mi. S of Marsh Creek Rd. on the Beck Rd. to Livermore Comment
  CAS-BOT-BC10149  Delphinium nudicaule Miss Mary Leolin Bowerman 1933-6-14 2284 Contra Costa Mount Diablo, Inner Black Hills: second gully west of north spur Comment
  SEINET12099569  Delphinium nudicaule J. G. Lemmon s.n. Contra Costa American Valley and Mt. Diablo Comment
  UC9189  Delphinium parryi subsp. parryi J. Burtt Davy 1895-4-8 975 Contra Costa foothills Antioch Comment
  JEPS21836  Delphinium patens Bryce G. Decker 1958-4-20 43 Contra Costa hillside meadow above 60 Oak Drive; Orinda Comment
  RSA148120  Delphinium patens Harlan Lewis, C. Epling 1944-5-6 s.n. Contra Costa 5.7 miles S of Marsh Creek Road on the Beck road to Luieruiore. Comment
  CAS-BOT-BC116456  Delphinium patens subsp. patens J. T. Howell 1933-5-14 11279 Contra Costa Hills east of St. Mary's College Comment
  CAS-BOT-BC116457  Delphinium patens subsp. patens Alice Eastwood 1915-5-30 4497 Contra Costa Mt. Diablo Comment
  LA207575  Delphinium variegatum H. Lewis; Carl Epling 1944-5-6 sn Contra Costa 1 mi. S of Marsh Creek Rd. on the Beck Rd. to Livermore Comment
  CDA31667  Deschampsia danthonioides D. G. Kelch, A. G. Murdock 2005-3-25 05 .-095 Contra Costa Carquinez Strait Region; Fernandez Ranch. West of Christie Road, south of I-4 (behind golf course) and north of Pinole Peak. Comment
  POM181464  Deschampsia danthonioides I. L. Wiggins 1930-4-17 4576 Contra Costa 1/4 mi. S. of Byron Comment
  CHSC118029  Deschampsia elongata Barbara Ertter 1999-6-12 16710 Contra Costa Black Hawk Ridge road on south side of Mount Diablo, road crossing at confluence of NE and E forks of Sycamore Creek. 396 Comment
  POM272496  Dicentra chrysantha L. R. Abrams 1921-5-25 8007 Contra Costa Halfway up road, Mt. Diablo Comment
  UC618200  Dichelostemma capitatum R. F. Hoover 1938-2-21 2756 Contra Costa Point Richmond Comment
  POM276989  Dichelostemma capitatum subsp. capitatum Lyman Benson 1931-3-18 2665 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 Comment
  UC1948965  Dichelostemma capitatum subsp. capitatum William J. Ferlatte, L. Maynard Moe 1970-4-27 1250 Contra Costa San Francisco Bay: Red Rock Island Comment
  SEINET8476471  Dichelostemma capitatum subsp. capitatum P. DelMonte 1976-3-28 s.n. Contra Costa Morgan Territory Road, 1 mile S of Curry Creek Park. 152 Comment
  CAS-BOT-BC502553  Dichelostemma congestum Alice Eastwood 1915-5-30 4474 Contra Costa Mt. Diablo Comment
  UC1795813  Dichondra donelliana Barbara Ertter, Brad Olson 1994-5-7 12745 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge. Comment
  JEPS121009  Digitaria sanguinalis D. G. Kelch 2006-9-6 06 .469 Contra Costa Elkhorn Creek, E of Crockett Comment
  CAS-BOT-BC150326  Diplacus aurantiacus Alice Eastwood 1915-6-21 4737 Contra Costa San Leandro Comment
  CAS-BOT-BC150327  Diplacus aurantiacus L. R. Abrams 1916-6-30 5704 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC150330  Diplacus aurantiacus Alice Eastwood 1921-4-18 10287 Contra Costa Antioch Comment
  CAS-BOT-BC121839  Dirca occidentalis Walter Knight; Irja Knight 1967-1-24 2057 Contra Costa Tilden Regional Park, near little train Comment
  CAS-BOT-BC121841  Dirca occidentalis Howard E. McMinn 1925-1-1 s.n. Contra Costa Head of San Leandro Creek Comment
  CAS-BOT-BC238191  Dirca occidentalis James R. Shevock 2012-8-12 40655 Contra Costa San Francisco Bay Region. Tilden Regional Park, East Bay Regional Park District. Along Grizzly Peak Trail less than 0.25 mi from upper trailhead off Grizzly Peak Road 445 Comment
  UC581346  Dirca occidentalis Helen K. Sharsmith 1932-9-18 50 Contra Costa head of Wildcat Canyon Berkeley Hills (streamside) Comment
  RSA603002  Dirca occidentalis Joseph A. Ewan 1934-3-10 8643 Contra Costa 2 miles below Orinda Road bridge, Wildcat Canyon Comment
  UCSB25834  Dirca occidentalis Keefe, Joseph 1967-3-20 Contra Costa Huckleberry Trail, 0.5 mile east of Skyline Boulevard, near intersection with Grizzly Peak Boulevard, east of Berkeley 274 Comment
  UCSB26563  Dirca occidentalis Havlik, Neil 1969-3-25 Contra Costa Junction of Grizzly Peak Blvd. and South Park Drive, at the southern end of Tilden Regional Park 487 Comment
  UC3564  Disporum hookeri unknown 1862-5-16 1099 Contra Costa s of Mount Diablo Comment
  RSA0038323  Distichlis spicata A. A. Beetle 1752 Contra Costa Point Richmond on San Francisco Bay. Comment
  CDA37339  Dittrichia graveolens D. G. Kelch 2010-10-31 10 .444 Contra Costa Valley north of Alhambra Valley Rd., south of Pinole Peak, east of Hercules. Comment
  HSC101959  Dodecatheon hendersonii Nikolaus Gillen, Michelle Bihler 2014-3-20 11 Contra Costa Mount Diablo State Park. Eagle Peak Trail. 649 Comment
  UC22416  Dodecatheon hendersonii J. Burtt Davy 1896-2-29 1266 Contra Costa Mitchell Canyon Mt. Diablo, Mitchell Canyon Comment
  SEINET8733889 Image available Downingia elegans H. S. Reed 1940-1 356 a Contra Costa six miles south of Antioch 15 Comment
  JEPS18331  Downingia insignis Lewis S. Rose 1936-4-24 36154 Contra Costa 8 mi s Antioch 30 Comment
  OBI20959  Downingia insignis Robert F. Hoover 1967-4-28 10503 Contra Costa Byron Hot Springs Comment
  POM148045  Downingia insignis Alice Eastwood 1939-5-19 14444 Contra Costa Byron Springs. Comment
  UC407372  Downingia insignis Ira L. Wiggins 1930-4-17 4570 Contra Costa 0.25 mi s Byron Comment
  UC766347  Downingia insignis R. F. Hoover 1941-4-12 4839 Contra Costa 1 mi n Lone Tree Valley Comment
  UCD32386  Downingia ornatissima Beecher Crampton 1950-4-22 530 Contra Costa Contra Costa County, 2 miles south of Antioch, on road from Antioch to Lone Tree Valley, in shallow depression along roadside. 60 Comment
  UC765585  Downingia ornatissima var. eximia R. F. Hoover 1941-4-12 4841 Contra Costa 2 mi s Antioch Comment
  JEPS14473  Downingia pulchella G. Thomas Robbins with Peter H. Raven 1956-4-28 3666 Contra Costa just e. of Martinez junction & 0.1 mi w. of Buchanan Field Rd. State Hwy. 4 Comment
  UCR196232  Downingia pulchella Beecher Crampton 1950-4-22 535 Contra Costa Concord Valley, between Hwy 4 and Buchanan Field (airport) 15 Comment
  JEPS128775  Draba verna Kevin Hintsa 1995-3-4 Contra Costa Deer Flat Road ca 1 mi NE of Juniper Campground, Mount Diablo State Park. Comment
  UC2027994  Draba verna Barbara Ertter with Tony Morosco 1998-4-12 16024 Contra Costa Mount Olympia on north side of Mount Diablo, midway down Olympia Road from summit. Comment
  CAS-BOT-BC70864  Dryopteris arguta Mary L. Bowerman 1930-6-18 342 Contra Costa Dan Cook Canyon Comment
  RSA0068493  Dryopteris arguta Katie Gallagher, Nick Jensen 2014-4-26 181 Contra Costa Las Trampas Regional Wilderness. 365 Comment
  UC830948  Dudleya cymosa subsp. paniculata Alice Eastwood 1915-5-30 Contra Costa near type locality; Mount Diablo Comment
  UC933340  Dudleya cymosa subsp. paniculata Lincoln Constance 1950-5-18 Contra Costa North Peak Mount Diablo Comment
  UC1357009  Dudleya farinosa C. H. Uhl 1954-6-1 360 Contra Costa Richmond Point Comment
  UC1606408  Dudleya farinosa Barbara Ertter 1992-7-25 11261 Contra Costa s end Point Richmond (near Brickyard Landing, above rr tracks) Comment
  UC2028468  Echinochloa colona Barbara Ertter 1997-8-24 15776 Contra Costa Mount Diablo, Summit Road just above Junction Station Comment
  SJSU10392  Echinochloa crus-galli J. E. Cox 1976-11-26 Contra Costa right of way of Dolores E Bay Municipal Utilities District, Lafayette Comment
  POM300733  Echinochloa crus-galli Mary L. Bowerman 1938-10-15 372 Contra Costa North Road, by through where trail to west base spring begins. 213 Comment
  UCD60948  Echinochloa crus-pavonis Beecher Crampton 1959-9-3 5451 Contra Costa 2 miles north of Orinda, Bear Creek, East Bay Munic. Distr. Project. Comment
  CAS-BOT-BC197293  Ehrharta erecta Catherine Best 1990-6-3 s.n. Contra Costa On Ralston Ave. in the hills above Richmond Comment
  JEPS111879  Eleocharis macrostachya A. G. Murdock 2004-4-30 250 Contra Costa McEwen Road West side of road in boggy wetland. 130 Comment
  JEPS111900  Eleocharis macrostachya D. G. Kelch 2005-3-24 05 .62 Contra Costa Point Pinole Southern Pt. Pinole 3 Comment
  UC691971  Eleocharis macrostachya Mary L. Bowerman 1938-5-28 3645 Contra Costa Maple Spring, on upper margin, especially in the NW corner Mount Diablo Comment
  UC691972  Eleocharis macrostachya Mary Bowerman 1935-6-21 3152 Contra Costa S of Turtle Rock (pool E of main pond); Mount Diablo Comment
  UC1745668  Eleocharis macrostachya Annetta M. Carter, Florence Little, Edward Lee 1934-7-4 676 Contra Costa Marsh Creek Rd. 3 miles beyond Contra Costa Co. Sanatorium. Comment
  POM300639  Eleocharis palustris Mary L. Bowerman 1935-6-21 3152 Contra Costa Mount Diablo: South of Turtle Rock, pool east of main pond 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
  SEINET3874805  Elodea densa L. Thorne, N. Thorne 1987-9-20 s.n. Contra Costa The Delta Area, Frank's Tract. Plant growing in the water. Brazilian water-weed, used in aquariums.; 0 Comment
  POM300590  Elymus X hansenii Mary L. Bowerman 1935-5-25 3073 Contra Costa Meridian Peak, west side of Devil's Pulpit; On edge of outcrop 1082 Comment
  CAS-BOT-BC227138  Elymus elymoides Roxana S. Ferris 1924-6-14 4090 Contra Costa Summit of Mt Diablo Comment
  SEINET252196  Elymus glaucus David Amme 1988-8-16 Contra Costa Kensington Comment
  SEINET252197  Elymus glaucus David Amme 1988-8-16 Contra Costa Kensington Comment
  UC692431  Elymus glaucus Mary L. Bowerman 1935-5-16 3009 Contra Costa behind Gabriel-Hinks' (e side of peak); Mount Diablo, North Peak 289 Comment
  UCD62270  Elymus glaucus J. B. Davy 1898-6-6 4242 Contra Costa Berkeley Hills. Comment
  CDA31735  Elymus multisetus D. G. Kelch 2002-5-24 2 .018 Contra Costa Carquinez Strait; Crockett. On hill S of San Pablo Ave ~0.4 miles W of Carquinez Bridge. Comment
  UC691179  Elymus trachycaulus Mary L. Bowerman 1932-10-16 1635 Contra Costa ne 2632 (n slope); Mount Diablo, Eagle Ridge 701 Comment
  UC692424  Elymus trachycaulus Mary L. Bowerman 1935-5-18 3030 Contra Costa n summit parkijng area; Mount Diablo 1066 Comment
  CDA2043  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
  UC1618362  Elytrigia intermedia subsp. intermedia Barbara Ertter with Lynne Hosley and Sid Cowles 1992-6-7 11084 Contra Costa along raod to quarry e of Round Top (Sibley Volcanic Regional Preserve in Oakland Hills); Oakland Hills, Sibley Volcanic Regional Preserve Comment
  JEPS1599  Emmenanthe penduliflora Mary L. Bowerman 1933-4-26 1916 Contra Costa North Peak ridge east-southeast of the peak, south face, Mount Diablo 609 Comment
  UC2042778  Epilobium brachycarpum Barbara Ertter 1990-9-10 9637 Contra Costa Briones Regional Park, Briones Hills S of Martinez, eroded N-facing draw between Sindicich and Maricich lagoons. Comment
  UC692459  Epilobium brachycarpum Mary L. Bowerman 1930-8-31 448 a Contra Costa e main road (near gully); Mount Diablo, Inner Black Hills Comment
  UC84481  Epilobium campestre T. S. Brandegee 1892-6-8 Contra Costa Antioch Comment
  UC101786  Epilobium campestre Katharine Brandegee 1907-6-16 Contra Costa near S.P. Station; Antioch Comment
  POM32526  Epilobium canum subsp. canum A. D. E. Elmer 1903-07 4620 Contra Costa Mount Diablo Comment
  UC1122299  Epilobium canum subsp. canum R. W. Lundh 1932-9-22 167 Contra Costa 1 mi sw Mt. Diablo; Mt. Diablo Quadrangle 914 Comment
  UC1618350  Epilobium canum subsp. canum Barbara Ertter, Brad Olson 1993-10-30 12286 Contra Costa w. of junction San Pablo Ave. & Vista del Rio w. of Crockett (base of bluff above R.R. tracks); Carquinez Strait Regional Shoreline Comment
  UC204068  Epilobium canum subsp. canum A. D. E. Elmer July, 1903 4620 Contra Costa Mount Diablo Comment
  CAS-BOT-BC166163  Epilobium canum subsp. canum L. R. Abrams 1910-10-8 4338 Contra Costa Mt. Diablo near Wall Pt. 457 Comment
  CAS-BOT-BC166168  Epilobium canum subsp. canum H. E. McMinn 92 Contra Costa From n. slope of Mt. Diablo near the summit Comment
  UC1122560  Epilobium ciliatum subsp. ciliatum H. S. Yates 1934-9-2 4074 Contra Costa 1 1/2 mi nw Orinda; Concord Quadrangle Comment
  UC1584862  Epilobium ciliatum subsp. ciliatum Jerry Powell 1987-11-1 1509 Contra Costa Point Molate Richmond Comment
  UC1613486  Epilobium ciliatum subsp. ciliatum Charles M. Belshaw 1936-12-13 2746 Contra Costa near Berkeley Country Club (North Coast Range); North Coast Range 152 Comment
  UC2028027  Epilobium ciliatum subsp. ciliatum Barbara Ertter 1997-9-14 15806 Contra Costa West side of Mount Diablo, Pine Creek upstream from Dusty Trail. Comment
  SEINET12859577  Epilobium pygmaeum K. Brandegee 1907-6-16 s.n. Contra Costa Antioch 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
  POM300615  Epipactis gigantea Mary L. Bowerman 1931-5-28 906 Contra Costa Mount Diablo: Pine Canyon, gully to south at east end of Castle Rock Farm: on dry waterfall between 2 pools Comment
  UCD138951  Epipactis gigantea Terri Williamson 1990-6-2 89 Contra Costa 212 Poshard Street, Pleasant Hill. 12 Comment
  UC1789099  Equisetum arvense Barbara Ertter 2005-8-18 18637 Contra Costa San Pablo Reservoir in East Bay Hills, east of San Pablo Dam Road between Richmond and Orinda (EBMUD water storage from Mokelumne River watershed); mudflats left by receding reservoir (being drained for seismic work on dam). Comment
  SEINET11614121  Equisetum telmateia subsp. braunii W. Knight, Knight, I. 1983-1 4771 Contra Costa Berkeley, Tilden Regional Park, botanic garden 305 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
  RSA0027416  Eragrostis mexicana subsp. virescens Barbara Ertter 1997-8-24 15777 Contra Costa Mount Diablo, Summit Road just above Junction Station. 671 Comment
  UC692710  Eremocarpus setiger Mary L. Bowerman 1930-10-4 485 Contra Costa South road near entrance; Mount Diablo Comment
  JEPS19181  Ericameria arborescens W. L. Jepson 1920-9-6 9086 Contra Costa Mt. Diablo Comment
  UC691864  Ericameria arborescens Mary L. Bowerman 1933-9-9 2438 Contra Costa ridge above Frog Pond; Mt. Diablo Comment
  CAS-BOT-BC131504  Ericameria arborescens H. E. McMinn 1922-3-1 394 Contra Costa Mt. Diablo, 2 or 3 miles from Tall Gate Comment
  CAS-BOT-BC287535  Ericameria linearifolia John Thomas Howell 1926-3-7 1673 Contra Costa Mt Diablo Comment
  RSA102866  Ericameria linearifolia H. N. Bolander 1866-1 6141 Contra Costa Monte [Mount] Diablo Comment
  UC1614256  Ericameria linearifolia Charles M. Belshaw 1935-6-10 697 Contra Costa Morgan Territory Rd. e. side of Mt. Diablo Comment
  UCSB10767  Ericameria linearifolia Hayes, Judy 1961-3-30 Contra Costa 2 miles N of South Gate of Mt. Diablo State Park 457 Comment
  CAS-BOT-BC295516  Erigeron miser Joseph Andorfer Ewan 1936-7-5 9735 Contra Costa Wildcat Creek Comment
  SBBG44960  Erigeron petrophilus J. A. Ewan 1936-7-5 9735 Contra Costa Wildcat Crk Comment
  UC31514  Erigeron philadelphicus var. philadelphicus J. Burtt Davy 1895-4-13 1007 Contra Costa near Lafayette Comment
  CAS-BOT-BC224221  Eriodictyon californicum Alice Eastwood; John Thomas Howell 1936-4-19 s.n. Contra Costa Nortonville Comment
  UC1613946  Eriodictyon californicum Charles M. Belshaw 1935-6-24 1027 Contra Costa Sobrante Hills Comment
  CAS-BOT-BC224218  Eriodictyon californicum H. E. McMinn 1922-6-2 87 Contra Costa From N. slope of Mt. Diablo Comment
  CDA22474  Eriogonum angulosum J. Simmen 1958-11-6 1515 -58 Contra Costa Palm Tract, Brentwood. 0 Comment
  POM165547  Eriogonum angulosum H. M. Hall 1916-8-17 10276 Contra Costa Deer Valley 183 Comment
  JEPS102893  Eriogonum covilleanum Barbara Ertter with Susan D'Alcamo 1998-6-12 16166 Contra Costa Devils Elbow trail SE of summit, not far from trailhead Mount Diablo 1036 Comment
  UC1050992  Eriogonum giganteum N. Floy Bracelin 1943-12-12 2616 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  JEPS99584  Eriogonum gracile Mary Bowerman 1994-6-19 Contra Costa Mount Diablo, main summit road just below lower parking lot. Comment
  UC691087  Eriogonum gracile Mary L. Bowerman 1932-8-27 1524 Contra Costa s Turtle Rock; Mount Diablo Comment
  UC692048  Eriogonum gracile var. gracile Mary L. Bowerman 1931-9-12 1038 Contra Costa spur jutting into west fork of Mitchell Canyon Mount Diablo, Mitchell Canyon 838 Comment
  JEPS116889  Eriogonum inerme David Gowen 2007-6-10 761 Contra Costa Mt. Diablo State Park. Gravel opening in chaparral near antenna area north of summit parking lot. Comment
  UC635006  Eriogonum luteolum var. luteolum H. L. Mason 1929-9-21 5434 Contra Costa 3 mi above, along Marsh Creek road Clayton Comment
  CAS-BOT-BC259522  Eriogonum luteolum var. luteolum Robert F. Hoover 1937-9-2 2714 Contra Costa Lower Marsh Creek canyon Comment
  CAS-BOT-BC268916  Eriogonum nudum var. auriculatum Mary L. Bowerman 1932-9-17 1585 Contra Costa Mount Diablo. Donner Canyon, West fork: of west fork 335 Comment
  UC691129  Eriogonum nudum var. auriculatum Mary L. Bowerman 1932-9-17 1585 Contra Costa west fork of west fork Donner Canyon; Mount Diablo 335 Comment
  POM300598  Eriogonum nudum var. auriculatum Mary L. Bowerman 1932-9-17 1585 Contra Costa Mount Diablo: Donner Canyon, west fork of west fork 335 Comment
  RSA0086416  Eriogonum nudum var. psychicola Jerry A. Powell 1962-8-19 308 Contra Costa About 2 miles east of Antioch. Comment
  SEINET3025700 Image available Eriogonum nudum var. psychicola Barbara J. Ertter 1997-8-18 15766 Contra Costa Antioch Dunes. Antioch Dunes (USFWS National Wildlife Refuge) on San Joaquin River east of Antioch, southwest corner of refuge north of railroad tracks in former vinyard. Comment
  UC692196  Eriogonum nudum var. pubiflorum Mary L. Bowerman 1932-9-17 1586 Contra Costa Donner Canoyn, w fork toward mouth Mount Diablo Comment
  SEINET11938139  Eriogonum nudum var. pubiflorum M. T. Doutt 1930-1 99 Contra Costa Marsh Creek Comment
  CAS-BOT-BC253093  Eriogonum roseum R. F. Hoover 1940-11-30 4699 Contra Costa 2 mi. south of Antioch Comment
  JEPS102909  Eriogonum roseum Barbara Ertter with Tony Morosco 1998-10-18 16436 Contra Costa NE corner of Lime Ridge recreation Area Mount Diablo 182 Comment
  CAS-BOT-BC267445  Eriogonum truncatum M. K. C. 1886-5-1 s.n. Contra Costa Antioch Comment
  POM165269  Eriogonum truncatum C. F. Baker 1903-4-28 2833 Contra Costa Marsh Creek, Mount Diablo Comment
  CAS-BOT-BC267870  Eriogonum umbellatum var. bahiiforme H. E. McMinn No date on label. 94 Contra Costa Near summit of Mt. Diablo Comment
  CAS-BOT-BC267874  Eriogonum umbellatum var. bahiiforme John Thomas Howell 1942-5-24 16967 Contra Costa Eagle Peak, Mount Diablo Comment
  JEPS108318  Eriogonum umbellatum var. bahiiforme David Gowen 2005-5-29 399 Contra Costa West of Morgan Territory Rd. and the main entrance to Morgan Territory Regional Preserve. Rocky area west of summit of hill 2581 (Tassajara Pk.?). Comment
  POM165074  Eriogonum umbellatum var. bahiiforme A. D. E. Elmer 1903-07 s.n. Contra Costa Mount Diablo Comment
  CAS-BOT-BC262348  Eriogonum vimineum Mary L. Bowerman 1932-8-27 1524 Contra Costa Mount Diablo. South of Turtle Rock Comment
  CAS-BOT-BC262351  Eriogonum vimineum Alice Eastwood 1915-5-30 s.n. Contra Costa Mt. Diablo Comment
  POM301037  Eriophyllum jepsonii Mary L. Bowerman 1936-5-6 3409 Contra Costa Uncle Sam Canyon 305 Comment
  SEINET10761151  Eriophyllum jepsonii Barbara J. Ertter, Holly Forbes 1997-4-20 Ertter 15562 Contra Costa North base of Mount Diablo, Eagle Peak Trail on NE side of Eagle Ridge below Twin Peaks, mixed chaparral-brush with Ptelea et al. Comment
  JEPS34599  Eriophyllum lanatum var. achilleoides W. L. Jepson 1891-5-24 14563 Contra Costa Mt. Diablo Comment
  UC507126  Eriophyllum lanatum var. achilleoides Lincoln Constance 1933-6-25 E 94 Contra Costa near the se base of Mount Diablo (se slope) Comment
  CAS-BOT-BC300965  Eriophyllum lanatum var. achilleoides L. Constance 1933-6-25 E 101 Contra Costa South slope, just below summit of Mount Diablo 1066 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
  UC2028366  Eriophyllum lanatum var. achilleoides Barbara Ertter 1998-6-20 16258 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, south side of Flat Top Comment
  JEPS111713  Eriophyllum staechadifolium D. G. Kelch 2004-5-21 04 .218 Contra Costa Crockett - West Valona Along San Pablo Ave. ~1 k. west of Carq. Bridge 57 Comment
  JEPS19402  Eriophyllum staechadifolium G. Thomas Robbins 1937-4-17 124 Contra Costa cliffs above San Francisco Bay near Point Richmond Comment
  HSC8469  Erodium botrys Greg Bos 1963-3-15 40 Contra Costa Albany Hill, Albany 9 Comment
  CAS-BOT-BC211072  Eryngium Katharine Brandegee 1907-5-16 s.n. Contra Costa Antioch Comment
  POM300691  Eryngium aristulatum var. aristulatum Mary L. Bowerman 1935-5-22 3054 Contra Costa Saddle west of Twin Lakes, just south of the crest 442 Comment
  POM301011  Eryngium aristulatum var. aristulatum Mary L. Bowerman 1942-06 3850 Contra Costa South Road 259 Comment
  RSA136734  Eryngium aristulatum var. aristulatum J. T. Howell 1955-8-24 30899 Contra Costa Near Diablo Country Club Comment
  JEPS17451  Eryngium armatum W. L. Jepson 1922-7-9 9732 Contra Costa Richmond 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
  UCD77691  Eryngium spinosepalum Robert E. Preston 2000-8-6 1432 Contra Costa 2 mi se of Byron Hot Springs, on w side of Byron Hot Springs Rd. 12 Comment
  CAS-BOT-BC40765  Erysimum capitatum Alice Eastwood; John Thomas Howell 1936-4-19 2151 Contra Costa Antioch sand hills. Comment
  CAS-BOT-BC40775  Erysimum capitatum James McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  UC1034739  Erysimum capitatum G. B. Rossbach 1955-3-20 571 Contra Costa steep upper s slope Mount Diablo 1005 Comment
  CAS-BOT-BC40758  Erysimum capitatum G. B. Rossbach; R. P. Rossbach 1938-6-5 859 Contra Costa Near summit Mount Diablo. Comment
  NY32657  Erysimum capitatum subsp. angustatum A. A. Heller 1908-4-16 8898 Contra Costa Sand hills east of Antioch. 22.9 Comment
  RSA0008588  Erysimum capitatum var. angustatum G. B. Rossbach, Ruth P. Rossbach 1938-6-5 858 Contra Costa Along tidal estuary of San Joaquin River, just east of Antioch Comment
  JEPS68964  Erysimum capitatum var. capitatum Edward Lee 1935-3-10 1296 Contra Costa e Antioch (hollow in stablized dune); Antioch Sand Dunes Comment
  UC673518  Erysimum capitatum var. capitatum H. L. Mason 1931-4-5 5822 Contra Costa Antioch sand hills Comment
  UCD114997  Erysimum capitatum var. capitatum R. F. Hoover 1935-3-10 s.n. Contra Costa Antioch. Comment
  CAS-BOT-BC55199  Erysimum repandum Ira L. Wiggins 1930-4-17 4574 Contra Costa Railway right of way 0.25 mile south of Byron. Comment
  CAS-BOT-BC151467  Erythranthe latidens Alice Eastwood; John Thomas Howell 1936-4-19 2155 Contra Costa 4 miles s. of Antioch Comment
  UC2046329  Erythranthe nasuta Barbara Ertter with Alan Prather 2003-6-7 18200 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, creek alongside west end Stone Corral Trail, south of Highland Ridge Trail junction. Comment
  CAS-BOT-BC402994  Eschscholzia californica Brandegee 1889-5-1 s.n. Contra Costa Antioch Comment
  JEPS12792  Eschscholzia californica Rimo Bacigalupi with G. T. Robbins 1955-5-4 4982 Contra Costa 1 1/4 mi e Antioch; San Joaquin River front 9 Comment
  JEPS75473  Eschscholzia californica P. F. Yorks 1974-2-24 112 Contra Costa ca 2 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Reserve 200 Comment
  SEINET11263885  Eschscholzia californica Barbara Ertter, Tony Morosco 1996-7-27 15039 Contra Costa Cardinet Oaks Road at crossing of Donner Creek.; 0 335 Comment
  UC10069  Eschscholzia californica Edw. L. Greene 1893-6-20 Contra Costa Mt. Diablo Comment
  UC1126420  Eschscholzia californica R. C. Wilson 1935-3-29 159 Contra Costa 1 mi sw Mt. Diablo; Mt. Diablo Quadrangle 1005 Comment
  UC1819026  Eschscholzia californica Barbara Ertter, Chris Thayer 1995-4-25 13996 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Black Hawk Ridge Rd. on north side Black Hawk Ridge. 548 Comment
  CAS-BOT-BC402985  Eschscholzia californica A. A. Heller 1908-4-16 8891 Contra Costa Hills east of Antioch 22 Comment
  UC692191  Eschscholzia californica Mary L. Bowerman 1930-6-28 386 Contra Costa near road above junction; Mount Diablo Comment
  UC170265  Eschscholzia rhombipetala E. L. Greene March, 1888 Contra Costa near Byron Springs Comment
  RSA0028906  Eucalyptus sideroxylon Barbara Ertter, Laura Fujii 1999-3-7 16483 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, near Alvarado Staging area at NW end of park, along hiking road. Comment
  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
  JEPS1724  Eucrypta chrysanthemifolia var. chrysanthemifolia Ivar Tidestrom Jun 1895 Contra Costa Crockett Comment
  UC24008  Eucrypta chrysanthemifolia var. chrysanthemifolia Brewer 1866-1 6280 Contra Costa Mount Diablo Comment
  JEPS100097  Euphorbia oblongata G. Smick 2003-5-6 GAS 173 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS111951  Euphorbia oblongata D. G. Kelch 2004-6-6 04 .224 Contra Costa Martinez - Train Station Downtown Martinez. Alhambra Creek near bay and railroad Station 2 Comment
  UC1276068  Euphorbia oblongata T. C. Fuller 1959-6-25 2679 Contra Costa ca 4 mi w Martinez; Alhambra Valley 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
  HSC83431  Euphorbia oblongata William E. Davis 1981-4-23 Contra Costa Martinez, along Franklin Creek in John Muir National Historic Site. Comment
  UCD142410  Euphorbia oblongata Thomas C. Fuller 1958-7-30 s.n. Contra Costa State Highway 4; 3 miles west of Martinez. Comment
  SEINET3449639  Euthamia occidentalis Dean G. Kelch, Andrew G. Murdock 2004-7-9 DGK 4 .309 Contra Costa West of Pacheco Slough, West of Pacheco Slough, Pacheco Hill Marsh 5 Comment
  UC202854  Euthamia occidentalis V. King Chesnut 1887-9-10 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC310642  Euthamia occidentalis Virginia I. Dains; Walter Knight 1986-8-8 5468 Contra Costa Jct Rock S1 & Werner Cut Comment
  UC1594167  Euthamia occidentalis Jerry Powell 1991-10-10 1617 Contra Costa Antioch National Wildelife Refuge Comment
  CDA37818  Fallopia japonica Slate 2012-6-29 PDR# 1649771 Contra Costa Lafayette; southwestern corner of Village Center & Mt. Diablo Blvds. 0 Comment
  RSA760667  Festuca William J. Ferlatte, L. Maynard Moe 1970-4-27 1253 Contra Costa San Francisco Bay, Red Rock Island. Comment
  JEPS127258  Festuca bromoides Lowell Ahart, Josephine Guardino 2016-4-19 20798 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest to Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  UC691232  Festuca elmeri Mary L. Bowerman 1935-5-3 2963 Contra Costa Sloan Road Mount Diablo 487 Comment
  UCD66332  Festuca rubra P. B. Kennedy 1919-5-1 s.n. Contra Costa North Berkeley. Hills. Comment
  JEPS100135  Foeniculum vulgare A. Langston 2003-7-28 AL 79 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  SEINET3562429 Image available Forestiera neomexicana Lewis S. Rose 1932-5-26 32117 Contra Costa Nortonville. Comment
  CAS-BOT-BC62925  Frangula californica subsp. tomentella H. E. McMinn s.n. Contra Costa Mt. Diablo. Comment
  CHSC99192  Frankenia salina John Dittes 2006-10-26 1413 Contra Costa San Joaquin Valley (foothills near nw edge); ~ 2.0 air-mile south of Marsh Creek Reservoir Gauging Station, 1.6 air-mile southwest of intersection of Camino Diablo and Vasco Road; Contra Costa Water District's Los Vaqueros Watershed Mitigation Project Area. 67 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
  RSA739727  Frankenia salina John Dittes 2006-10-26 1413 Contra Costa San Joaquin Valley (foothills near NW edge) 2 air mile S of Marsh Creek Reservoir Gauging Station, 1.6 air mile SW of intersection of Camino Diablo and Vasco Road, Contra Costa Water District's Los Vaqueros Watershed Mitigation. 67 Comment
  UC1122130  Frankenia salina C. M. Belshaw 1936-5-9 2080 Contra Costa 1.5 mi e Mulligan Hills; Mt. Diablo Quad. 152 Comment
  UC1753842  Fraxinus dipetala Annetta M. Carter, Leo Bowerman 1935-6-1 876 Contra Costa Mt. Diablo. 975 Comment
  JEPS62309  Fritillaria affinis H. P. Chandler 1900-3-23 577 Contra Costa Briones Valley; Region of Mount Diablo, Briones Valley Comment
Read comments
Aug 23 2008
  UC692003  Fritillaria affinis Mary L. Bowerman 1931-3-8 562 Contra Costa Mount Diablo, near mouth of Mitchell Canyon Mitchell Canyon; Mount Diablo, Mitchell Canyon Comment
  UC13831  Fritillaria liliacea J. P. Tracy 1900-3-24 612 Contra Costa near Point Richmond (San Francisco Bay Region); San Francisco Bay Region 3 Comment
  JEPS111523  Fumaria capreolata D. G. Kelch 2005-5-5 05 .208 Contra Costa Point Pinole - Giant Marsh Giant Salt Marsh 3 Comment
  JEPS124455  Galium andrewsii subsp. gatense Daniel Slakey with CNPS Volunteers 2015-6-13 130 Contra Costa Mt. Diablo State Park, east side of Burma Road. Comment
  UC691532  Galium andrewsii subsp. gatense Mary L. Bowerman 1930-6-7 283 Contra Costa summit Mount Diablo Comment
  CDA42131  Galium aparine A. G. Murdock 2004-3-19 223 Contra Costa Carquinez Strait Region; Luzon. Sycamore Avenue just east of Rodeo/Hercules where train crosses Highway 4 (Luzon). Comment
  JEPS75515  Galium aparine P. F. Yorks 1976-4-11 505 a Contra Costa on Hampton Rd ca 1.4 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Preserve Comment
  UC691536  Galium aparine Mary L. Bowerman 1932-4-27 1374 Contra Costa canyon w Riggs Canyon; Mount Diablo, Oyster Ridge 289 Comment
  UCD121622  Galium aparine Robert C. Bechtel 1952-4-12 58 Contra Costa West side Mt. Diablo. 914 Comment
  UC1614104  Galium californicum Charles M. Belshaw 1935-6-24 786 Contra Costa Bald Peak ca. 1/2 mi. e. Grizzly Peak; Bald Peak Comment
  SBBG27401  Galium murale J. T. Howell 1942-4-26 16953 Contra Costa Redwood Cyn, Oakland Hills Comment
  RSA666412  Galium murale Barbara Ertter, Chris Thayer 1993-5-7 11715 Contra Costa Ca 1/2 mile N of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land E of Tilden Park. Grazing land on lower slopes S of Wildcat Canyon Road. Comment
  RSA720805  Galium murale Barbara Ertter, Mary Bowerman, Lisa Schultheis 1995-3-31 13942 Contra Costa Mount Diablo State Park. Lower end of Mitchell Canyon S of Clayton. 183 Comment
  UC2028363  Galium parisiense Barbara Ertter 1998-6-20 16261 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Borges Ranch Road at junction to private residences Comment
  JEPS112101  Galium porrigens var. porrigens D. G. Kelch 2003-4-3 03 .357 Contra Costa Cummings Skyway 134 Comment
  JEPS112107  Galium porrigens var. porrigens D. G. Kelch 2003-4-3 03 .357 Contra Costa Cummings Skyway 134 Comment
  JEPS75526  Galium porrigens var. porrigens P. F. Yorks 1975-6-10 434 Contra Costa on Hampton Rd ca 1.4 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  UC1143107  Galium tricornutum C. M. Belshaw 1936-5-13 2124 Contra Costa s Horse Valley (Plot 38); Mt. Diablo Quadrangle Comment
  UC672198  Gamochaeta ustulata H. L. Mason 1928-4-12 4302 Contra Costa Richmond waterfront 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
  CAS-BOT-BC200624  Garrya elliptica H. G. Bloomer 1863-2-11 1564 Contra Costa Hills near Oakland Comment
  CAS-BOT-BC200629  Garrya elliptica Mary L. Bowerman 1933-3-11 1747 Contra Costa Fossil Ridge, knoll south of 1778 Comment
  UCSB29462  Garrya elliptica Havlik, Neil 1969-7-2 Contra Costa northeast slope of Grizzly Pk; Berkeley Hills 457 Comment
  SEINET3558664 Image available Garrya fremontii Lewis S. Rose 1934-2-28 34041 Contra Costa Summit Mount Diablo. Comment
  CDA9420  Gastridium ventricosum D. G. Kelch 2004-5-3 4 .152 Contra Costa Carquinez Strait; Mt Wanda, Martinez. 0 Comment
  UC585537  Gastridium ventricosum Virginia E. Long 1933-6-14 224 a Contra Costa ridge entering W Fork of Curry Cave trail canyon Mt. Diablo; , ridge entering W Fork of Curry Cave trail canyon Comment
  RSA0028181  Geranium carolinianum Mary L. Bowerman 1935-5-25 3076 Contra Costa Rhine Canyon. 915 Comment
  JEPS111978  Geranium dissectum D. G. Kelch 2003-3-28 03 .89 Contra Costa Rodeo - Lone Tree Point 2 Comment
  UC692707  Geranium dissectum Mary L. Bowerman 1931-4-11 708 Contra Costa Pine Canyon mouth Mount Diablo Comment
  JEPS111980  Geranium molle D. G. Kelch 2003-3-21 03 .68 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 2 miles west of Martinez Contra Costa County CA. Grassy hill above cottonwood tree. Just south of end gate of Carquinez Scenic Drive 40 Comment
  SEINET12343273  Gilia Ottley 1920-3-6 210 Contra Costa Black Hills, San Francisco Bay region Comment
  RSA67217  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
  JEPS75513  Gilia achilleifolia subsp. achilleifolia P. F. Yorks 1974-4-28 141 Contra Costa on Hampton Road ca 1.9 km s Bear Creek Road (n of Briones Reservoir, Hampton Road Natural Reserve); Hampton Road Natural Reserve, n of Briones Reservoir 200 Comment
  UC691669  Gilia achilleifolia subsp. achilleifolia Mary L. Bowerman 1932-5-6 1416 Contra Costa floor Mitchell Canyon; Mount Diablo, Mitchell Canyon 213 Comment
  RSA566427  Gilia capitata subsp. staminea Peter L. Morrell, Donna S. Krause 1993-5-16 239 Contra Costa Contra Costa County, along sides of raod 100m W of 1701 Wilbur Ave, Antioch, betw Southern Pacific tracks and San Joaquin River (0.5 miles W of Hwy 4/160). Comment
  UC23834  Gilia capitata subsp. staminea W. H. Brewer 1800-1 1118 Contra Costa n Kirker Pass; n of Kirker Pass Comment
  RSA83089  Gilia capitata subsp. staminea Verne Grant, Alva Grant 1947-4-13 7925 Contra Costa By railroad tracks east of Antioch. Comment
  POM223334  Gilia clivorum L. S. Rose 1935-5-16 351 75 Contra Costa Mt. Diablo. Comment
  CHSC21634  Gilia tricolor Willis Ball 1975-3-9 489 Contra Costa Contra Loma Regional Park. In area #8. Level mound ca. 450 yds s of main parking lot ca. 750 yds w of Contra Loma Blvd. 76 Comment
  SEINET10972175  Githopsis diffusa subsp. robusta Alice Eastwood 1915-5-30 Eastwood s.n. Contra Costa Comment
  UC1051198  Gladiolus X colvillei N. Floy Bracelin 1944-6-11 2724 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UCD84951  Glyceria leptostachya Chuck Hughes 2010-3-29 223 Contra Costa About 0.4 mile southeast of Vasco Road. 123 Comment
  UC1738825  Glyceria occidentalis Dean W. Taylor 1990-4-10 10675 Contra Costa Byron Hot Springs Road, 1 mile S of Holey Road 24 Comment
  CDA27056  Glycyrrhiza lepidota D. G. Kelch, A. G. Murdock 2004-6-6 4 .222 Contra Costa Carquinez Strait Region; Downtown Martinez. Alhambra Creek near bay and railroad station. Comment
  JEPS112332  Glycyrrhiza lepidota Dean G. Kelch and Andrew G. Murdock 2004-6-6 04 .222 Contra Costa Martinez; County: Contra Coasta; Downtown Martinez. Alhambra Creek near bay and railroad Station. Comment
  UC1618414  Gnaphalium palustre Barbara Ertter, Brad Olson 1991-9-28 10835 Contra Costa between Orinda and El Sobrante (at s end of San Pablo Reservoir); San Pablo Reservoir 91 Comment
  UCD32381  Godetia amoena var. concolor Beecher Crampton 1950-4-22 523 Contra Costa Contra Costa County, above site of Judsonville, west of old Empire Coal Mine. 167 Comment
  SEINET3150085  Godetia purpurea L. S. Rose 1938-5-8 38224 Contra Costa Antioch 15 Comment
  CDA34248  Grindelia camporum D. G. Kelch 2009-5-24 9 .303 Contra Costa Carquinez Strait; S of Ozol, W/SW of Martinez. Comment
  RSA95463  Grindelia camporum L. S. Rose 1952-11-26 52020 Contra Costa Pittsburg. 3 Comment
  JEPS41884  Grindelia hirsutula W. L. Jepson 1895-9-14 Contra Costa Walnut Creek Comment
  JEPS75516  Grindelia hirsutula P. F. Yorks 1975-7-31 482 Contra Costa 2.5 km s Bear Creek Road (on Hampton Road, just n of Briones Reservoir); Hampton Road Natural Reserve 200 Comment
  UC1042334  Grindelia hirsutula Lewis S. Rose 1952-11-26 52020 Contra Costa Pittsburg 3 Comment
  UC1606421  Grindelia hirsutula Barbara Ertter 1993-5-9 11719 Contra Costa near Brickyard Landing (bluffs at end of Garan Road, sw corner of Point Richmond); Point Richmond 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
  UC1618424  Grindelia hirsutula Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10872 Contra Costa just w of Antioch Marina (Dow Wetlands Preserve); Dow Wetlands Preserve Comment
  CAS-BOT-BC305245  Grindelia hirsutula John Thomas Howell 1954-9-5 30027 Contra Costa Marsh Creek Road 8 miles from Byron Comment
  UCR197912  Grindelia robusta Beecher Crampton 1950-6-20 594 Contra Costa Richmond, south of Cutting Boulevard, immediately adjacent to Carlson Boulevard, north of Stege Ave. 15 Comment
  RSA144688  Grindelia stricta var. angustifolia G. Thomas Robbins 1958-10-2 3941 Contra Costa Along Southern Pacific Railroad just W of Carlson Blvd., near Stege railroad siding, Richmond. Comment
  JEPS20871  Guillenia flavescens J. Burtt Davy 1895-4-7 969 Contra Costa Antioch 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
  JEPS54107  Guillenia lasiophylla H. P. Chandler 1900-3-24 Contra Costa Briones Hills Region of Mount Diablo Comment
  JEPS68953  Guillenia lasiophylla Edward Lee 1935-3-10 1283 Contra Costa Donovan Road, w watershed of Kirker Creek Kirker Pass, Kirker Creek Comment
  UC691080  Guillenia lasiophylla Mary L. Bowerman 1935-4-22 2892 Contra Costa ridge w Pioneer Road (w of Old Stage Road); Mount Diablo 853 Comment
  UC691088  Guillenia lasiophylla Mary L. Bowerman 1933-4-26 1924 Contra Costa ese of North Peak ridge peak; Mount Diablo 609 Comment
  POM300575  Guillenia lasiophylla Mary L. Bowerman 1932-3-23 1131 Contra Costa Ridge E of Donner Canyon. 274 Comment
  UCD36026  Hainardia cylindrica Beecher Crampton 1949-6-6 471 Contra Costa Contra Cost County, city of Richmond. 16 Comment
  CAS-BOT-BC282858  Hainardia cylindrica E. E. Stanford 1930-5-16 1485 Contra Costa Near Old River Comment
  UC691763  Helenium puberulum Mary L. Bowerman 1930-8-24 413 Contra Costa Mitchell Canyon just above edge of road Mount Diablo Comment
  CAS-BOT-BC305321  Helianthella castanea Alice Eastwood 1921-6-11 10604 Contra Costa Mt. Diablo Comment
  JEPS100139  Helianthella castanea G. Smick 2003-4-1 GAS 115 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS89719  Helianthella castanea Dean William Taylor 1971-3-28 976 Contra Costa at s. gate to Mt. Diablo State Park 609 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
  UC194923  Helianthella castanea H. M. Hall 1916-5-31 10137 a Contra Costa exposed flat on s side Mt. Diablo Comment
  UC2013032  Helianthella castanea Barbara Ertter with Travis Columbus 1990-6-10 9107 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill; E-facing steep hillside above junction of Spengler and Blue Oaks trails. Comment
  UC2031433  Helianthella castanea Barbara Ertter 1991-6-1 10074 Contra Costa Las Trampas Regional Wilderness in hills W of Danville Comment
  UC761942  Helianthella castanea R. F. Hoover 1939-4-13 4014 Contra Costa head (west branch) Markeley Canyon Comment
  CAS-BOT-BC223918  Helianthemum scoparium Mary L. Bowerman 1932-4-9 1332 Contra Costa Mount Diablo. Ridge to Wall Point, from near Rock City 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
  UC1795839  Helianthus tuberosus Barbara Ertter 1995-9-30 14526 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
  JEPS111842  Heliotropium curassavicum D. G. Kelch 2004-7-9 04 .307 Contra Costa Muir grave Alhambra Creek, Martinez, Near Muir gravesite 60 Comment
  UC2070492  Heliotropium curassavicum Barbara Ertter 2002-11-11 18071 Contra Costa Round Valley Regional Preserve east of Mount Diablo, along Round Valley Creek/Miwok Trail. Comment
  UCD36034  Heliotropium curassavicum var. oculatum Beecher Crampton 1949-7-15 486 Contra Costa Contra Costa County, below original site of Judsonville, head of Lone Tree Valley, along Sand Creek, just before coming to Lee Higgins Empire Ranch. 114 Comment
  CHSC75063  Helminthotheca echioides Roger Thom 1987-5-28 26 Contra Costa 3300 block of Johnson Rd. 0.3 mi from intersection with Reliez Valley Rd. Lafayette. Edge of pasture. 137 Comment
  UC1584687  Helminthotheca echioides Jerry Powell 1987-7-14 1503 Contra Costa Point Molate Beach Comment
  CAS-BOT-BC305875  Helminthotheca echioides Vincent Jones 1921-8-29 s.n. Contra Costa Orwood Comment
  CDA37817  Hemizonia congesta Godwyn 2012-6-22 PDR# 1641308 Contra Costa Pleasanton; 7300 Camino Tassajara. 0 Comment
  UC201230  Hemizonia congesta subsp. lutescens H. M. Hall 1914-9-19 9883 Contra Costa 1 km nw of town on Broadway; San Pablo 18 Comment
  CAS-BOT-BC306263  Hemizonia congesta subsp. lutescens H. M. Hall 1914-9-13 9877 Contra Costa Easterly shores of San Francisco Bay near San Pablo Comment
  CAS-BOT-BC314853  Hemizonia congesta subsp. luzulifolia L. R. Abrams 1910-10-9 4359 Contra Costa Between San Ramon and Dublin Comment
  CAS-BOT-BC314858  Hemizonia congesta subsp. luzulifolia R. F. Hoover 1937-9-2 2709 Contra Costa Walnut Creek Comment
  UC1561246  Hemizonia congesta subsp. luzulifolia Barbara Ertter 1989-9-30 8861 Contra Costa e El Cerrito (3 mi nw of Inspiration Point, East Bay Skyline Nat'l Recreation Trail = Nimitz Way); East Bay Skyline Nat'l Recreation Trail, Wildcat Canyon Regi 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
  UC912566  Hemizonia congesta subsp. luzulifolia Herbert L. Mason 7058 Contra Costa Laundry Farm Oakland Hills Comment
  CAS-BOT-BC314865  Hemizonia congesta subsp. luzulifolia John Thomas Howell 1929-9-21 4386 Contra Costa 4 miles west of Clayton Comment
  LA203703  Hemizonia congesta subsp. luzulifolia Chas M. Belshaw; 1936-10-26 2722 Contra Costa near Walnut Creek Comment
  RSA181368  Hemizonia fitchii James I. McMurphy 1908-10-18 s.n. Contra Costa Antioch. Comment
  SEINET3387003 Image available Hemizonia heermannii Lewis S. Rose 1933-10-22 33387 Contra Costa Wildcat Canyon. Comment
  SEINET7883479 Image available Hemizonia obconica Lewis S. Rose 1938-1 38309 Contra Costa Marsh Creek, 8 mi. w. of Byron 61 Comment
  POM215122  Hemizonia parryi subsp. congdonii D. D. Keck 1933-11-2 2610 Contra Costa San Ramon, Crow Creek Canyon road, 0.5 miles from turnoff Comment
  JEPS75523  Heracleum lanatum P. F. Yorks 1974-5-19 160 B Contra Costa n. Briones Reservoir (ca. 1.7 km. s. of Bear Creek Rd. on Hampton Rd. in Hampton Road Natural Reserve); Hampton Road Natural Reserve 180 Comment
  UC901876  Heracleum lanatum L. Constance 1950-6-25 3326 Contra Costa s. rim Wildcat Canyon (Tilden Park); , Tilden Park 365 Comment
  CAS-BOT-BC310161  Hesperevax caulescens Dr. A. Kellogg; W. G. W. Harford 1868-1-1 419 Contra Costa Antioch Comment
  JEPS29512  Hesperevax caulescens M. K. Curran May 1886 Contra Costa Antioch Comment
  JEPS116939  Hesperevax caulescens David Gowen 2008-4-21 868 Contra Costa South of Antioch, in Contra Loma Regional Park off Frederickson Lane. North, to northwest facing slope just NW of parking area for Black Diamond Mines Regional Preserve. Comment
  OBI48583  Hesperevax caulescens Joseph Andorfer Ewan 1936-5-3 9496 Contra Costa Wildcat crk near Orinda road bridge Comment
  JEPS33796  Hesperevax sparsiflora W. L. Jepson 1925-4-26 10685 Contra Costa grassy adobe hills by Green Valley (Mt. Diablo); Mt. Diablo 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
  CAS-BOT-BC310191  Hesperevax sparsiflora var. sparsiflora John Thomas Howell 1930-4-22 4749 Contra Costa Bald Peak Comment
  JEPS100155  Hesperocnide tenella G. Smick 2003-4-29 GAS 155 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS111922  Hesperocnide tenella Dean G. Kelch and Andrew G. Murdock 2004-3-5 AGM 213 Contra Costa Martinez - Rankin Open Space. Comment
  CAS-BOT-BC167429  Hesperolinon breweri Robert F. Hoover 1939-5-20 4106 Contra Costa Head of Markley Canyon Comment
  CAS-BOT-BC167437  Hesperolinon breweri A. D. E. Elmer 1903-7-1 4545 Contra Costa Mount Diablo Comment
  JEPS122864  Hesperolinon breweri Adam C. Schneider with Yuri P. Springer 2014-5-16 591 Contra Costa Along hills west of Los Vaqueros Reservoir. Comment
  UC311528  Hesperolinon breweri A. D. E. Elmer July, 1903 4545 Contra Costa Mount Diablo Comment
  UC692695  Hesperolinon breweri Mary L. Bowerman 1933-6-7 2254 Contra Costa North Peak Ridge Mount Diablo 1005 Comment
  CAS-BOT-BC167436  Hesperolinon breweri Volney Rattan 1886-6-1 s.n. Contra Costa Mount Diablo. Near Marsh's Ranch Comment
  CAS-BOT-BC167443  Hesperolinon breweri Mary L. Bowerman 1933-6-7 2254 Contra Costa North Peak Ridge, exposure south. Mount Diablo 1005 Comment
  UC692700  Hesperolinon californicum Mary L. Bowerman 1933-6-14 2275 Contra Costa Inner Black Hills e Knobcone Point; Mount Diablo Comment
  POM149311  Hesperomecon linearis C. F. Baker 1903-4-25 2802 Contra Costa Antioch. Comment
  UC725833  Hesperomecon linearis A. A. Heller 1908-4-16 8890 Contra Costa East of Antioch 22 Comment
  UCD95453  Hesperomecon linearis Annetta M. Carter 1933-4-23 298 Contra Costa above the San Joaquin River, between Antioch Bridge and Antioch. Comment
  UC186817  Heterodraba unilateralis F. T. Bioletti 1892-1 Contra Costa Byron Comment
  OBI62818  Heteromeles arbutifolia John Osborne 1970-11-21 14 Contra Costa 3173 Somerset Dr., Lafayette 76 Comment
Read comments
Sep 18 2016
  RSA0010319  Heterotheca sessiliflora var. bolanderioides J. C. Semple, B. A. Suripto, T. Ahmed 1990-8-16 9339 Contra Costa Charles Tilden Reg. Park, Vollmer Peak. Comment
  CDA15278  Hirschfeldia incana G. F. Hrusa, D. Crowe, R. York 1998-7-17 14715 Contra Costa Sacramento Delta; E end of Dow Chemical property at Pittsburg. Comment
  UC1818934  Hirschfeldia incana Barbara Ertter, Mary Bowerman et al. 1995-5-7 14022 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, along road thru annual grassland with scattered blue oak south of Marsh Cr. Rd summit. 304 Comment
  CDA2182  Holcus lanatus D. G. Kelch, A. G. Murdock 2005-6-24 5 .386 Contra Costa Carquinez Strait Region; 5th Street Prairie, Crockett. Comment
  CDA7978  Holocarpha heermannii A. G. Murdock, D. G. Kelch 2002-7-2 67 Contra Costa Carquinez Strait Region; Mt. Wanda - Martinez. Crest of Mt. Wanda on north side of main fire road. Comment
  JEPS111636  Holocarpha heermannii Andrew G. Murdock 2002-7-20 67 Contra Costa Mount Wanda - Martinez; ; ; crest of Mount Wanda on N side of fire road in large meadow 85 Comment
  JEPS111730  Holocarpha heermannii Dean G. Kelch and Andrew G. Murdock 2004-9-2 04 .329 Contra Costa McEwen Road McEwen Road from Port of Costa - I-4 near summit of Road. Contra Costa County CA. 195 Comment
  CAS-BOT-BC325833  Holocarpha heermannii John Thomas Howell 1929-9-21 4389 Contra Costa 5 miles se. of Clayton on Marsh Creek Road Comment
  CAS-BOT-BC325846  Holocarpha heermannii Walter Knight 1978-9-16 3271 Contra Costa Briones Regional Park near Maricich Lagoon Comment
  CAS-BOT-BC325847  Holocarpha heermannii Walter Knight; Harry Reeves 1979-8-25 3403 Contra Costa Contra Loma Regonal Park near Antioch 22 Comment
  RSA128986  Holocarpha heermannii Peter H. Raven 1950-7-5 2484 Contra Costa Deer Ridge, Mt. Diablo. 884 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
  RSA81664  Holocarpha heermannii James I. McMurphy 1909-9-25 s.n. Contra Costa Below Alamo. Comment
  UC2012985  Holocarpha heermannii Barbara Ertter with Lisa Schultheis 1996-9-2 15276 Contra Costa South side of Mount Diablo, west end of Blackhawk Ridge. Comment
  CAS-BOT-BC320226  Holocarpha macradenia David J. Powers 1974-10-6 1001 Contra Costa 100-400 feet east of highway 80, and 100-300 yards south of Appian Way, Pinole Comment
  UC1357615  Holocarpha obconica R. F. Hoover 1965-9-24 9649 Contra Costa foothills w Byron (between Kellogg and Marsh Creeks) Comment
  CAS-BOT-BC320239  Holocarpha obconica L. R. Abrams 1917-9-13 6723 Contra Costa Patterson Pass - east side Comment
  CAS-BOT-BC320241  Holocarpha obconica Margi Oard 1988-10-9 s.n. Contra Costa Ca. 2 miles east of junction with Deer Valley Road along north side of Marsh Creek Road Comment
  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
  RSA22274  Holocarpha obconica subsp. obconica L. S. Rose 1938-10-28 38309 Contra Costa Marsh Creek, 8 miles W of Byron. 61 Comment
  CAS-BOT-BC324617  Holocarpha virgata R. F. Hoover 1965-9-24 9648 Contra Costa Foothills west of Byron east of Kellogg Creek Comment
  CAS-BOT-BC320325  Holocarpha virgata David D. Keck 1933-11-2 2623 Contra Costa 5 mi. SE. of Clayton on Marsh Creek Road just opposite Mt. Diablo Comment
  CAS-BOT-BC320332  Holocarpha virgata F. R. Lawson 1930-7-18 s.n. Contra Costa 2.4 mi. west of Concord Comment
  CAS-BOT-BC324616  Holocarpha virgata R. F. Hoover 1969-8-29 11566 Contra Costa Raymond Road and Ames Street, Livermore Valley Comment
  LA203994  Holocarpha virgata John Thomas Howell; 1930-9-28 5501 Contra Costa on the Marsh Creek Road, 5.4 mi. from Byron Comment
  POM179764  Holocarpha virgata subsp. virgata J. T. Howell 1930-9-28 5500 Contra Costa 6.3 miles from Byron on the Marsh Creek Road. Comment
  RSA94065  Holocarpha virgata subsp. virgata J. T. Howell 1930-9-28 5501 Contra Costa 5.4 miles from Byron on Marsh Creek Road. Comment
  CAS-BOT-BC152593  Holodiscus discolor var. discolor Alice Eastwood 1915-6-21 4733 Contra Costa San Leandro Comment
  SEINET4182779 Image available Hordeum marinum subsp. gussoneanum Barbara Ertter, Jim Jokerst, Dave Magney 1989-4-5 8140 Contra Costa Alkali sink West and adjacent Clifton Court Forebay, circa 15 air miles Southwest of Stockton 0 Comment
  UC691196  Hordeum marinum subsp. gussoneanum Mary L. Bowerman 1933-5-11 2086 Contra Costa Inner Black Hills w of saddle , Inner Black Hills w of saddle (Mount Diablo) Comment
  CAS-BOT-BC289561  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
  CAS-BOT-BC284889  Hordeum murinum subsp. leporinum Alice Eastwood 1921-4-18 10264 Contra Costa Antioch Comment
  CHSC21616  Hordeum murinum subsp. leporinum Willis Ball 1974-4-21 430 Contra Costa Contra Loma Regional Park. In area #1. Immediately to the s side of the main parking lot at the s end of the lake. 38 Comment
  UC521670  Horkelia californica subsp. dissita Joseph Andorfer Ewan 1933-10-15 8023 Contra Costa Above Indian Ceremonial Spr.; Mt. Diablo Comment
  UC691094  Horkelia californica subsp. dissita Mary L. Bowerman 1932-11-25 1666 Contra Costa Mount Diablo, Silver Spring Comment
  JEPS112098  Horkelia californica subsp. frondosa D. G. Kelch 2005-5-1 05 .192 Contra Costa Crockett - Edwards Canyon. On shady bank 150 Comment
  UC2027863  Horkelia californica var. elata Barbara Ertter with Chris Thayer 1996-10-25 15385 Contra Costa West side of Mount Diablo, North Gate Road 1.0 roadmiles NW of Junction, spring near road. Comment
  UC2029074  Horkelia californica var. elata Barbara Ertter 2000-7-16 17408 Contra Costa Pine Creek on WNW base of Mount Diablo. 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
  UC10308  Hornungia procumbens F. T. Bioletti 1892-1 Contra Costa Byron Comment
  JEPS21869  Hornungia procumbens Annette Waters 1958-4-13 199 Contra Costa 1 mi s of Byron (0.4 mi w from Byron Highway on Byron Hot Springs Road, 0.3 mi n from Byron Hot Springs Road) Comment
  JEPS96251  Hydrocotyle verticillata Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10863 Contra Costa just w. Antioch marina (along levee at water's edge, accessed from marina, Dow Wetlands Preserve); Dow Wetlands Preserve Comment
  SD241719  Hydrocotyle verticillata Barbara Ertter, Lincoln Constance 1995-6-16 14260 Contra Costa East edge Dow Marsh on west side Antioch Marina, south side San Joaquin River in Delta area. Comment
  RSA31351  Hypochaeris glabra Joseph A. Ewan 1936-5-24 9692 Contra Costa W slope Bald Peak, head Wildcat Creek. Comment
  UC1948942  Hypochaeris radicata William J. Ferlatte, L. Maynard Moe 1970-4-27 1252 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC1304178  Iris douglasiana Leo Brewer 1965-5-4 Contra Costa ridge w Siesta Valley (w-facing side of ridge, exposed to fog from Golden Gate, on county line between Contra Costa and Alameda counties) 441 Comment
  UC692080  Isoetes howellii Mary L. Bowerman 1935-6-28 3166 Contra Costa Chase Pond s. of summit Mt.Diablo (by Old Government trail, e. side of pond); , Chase Pond 548 Comment
  JEPS368  Isoetes orcuttii J. Burtt Davy 1895-4-7 900 Contra Costa Antioch Comment
  UCD133351  Iva axillaris Morris Halperin 1930-5-20 s.n. Contra Costa Hoffman Ranch, Brentwood. Comment
  UCD133394  Iva axillaris Collector Unknown Date Unknown s.n. Contra Costa Exact location unknown. Comment
  SEINET12637087  Johnstonella micromeres K. Brandegee 1889-1 s.n. Contra Costa Antioch. Comment
  JEPS31657  Juglans hindsii C. Ritchie Bell 1951-5-11 Contra Costa 1 1/4 mi ne of St. Mary's College (Las Trampas Creek); Las Trampas Creek 167 Comment
  UC2028644  Juglans hindsii Barbara Ertter with Chris Thayer 1996-10-25 15355 Contra Costa Northwest flank of Mount Diablo Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park Comment
  UC2028428  Juncus articulatus Barbara Ertter 1996-9-19 15300 Contra Costa Antioch Marina, edge of bay in Dow Marsh lands Comment
  RSA0027709  Juncus articulatus Barbara Ertter 1996-9-19 15300 Contra Costa Antioch Marina, edge of bay in Dow Marsh lands. Comment
  CDA9363  Juncus balticus D. G. Kelch 2006-7-14 6 .326 Contra Costa Carquinez Strait; Along Marine Vista Ave immmediately west of Pacheco Slough. East of Martinez. Comment
  UC2029189  Juncus balticus Barbara Ertter with Brad Olson et al. 2000-6-2 17308 Contra Costa Brushy Peal Regional Preserve NE of Livermore Comment
  UC1601708  Juncus bufonius J. Burtt Davy 1897-9-4 4080 Contra Costa Stege Comment
  UC691983  Juncus bufonius var. bufonius Mary L. Bowerman 1931-4-4 635 Contra Costa Mount Diablo, 2 mi by road from West Entrance = North Gate Mount Diablo Comment
  UC1819013  Juncus bufonius var. bufonius Barbara Ertter, Mary Bowerman et al. 1995-5-7 14040 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
  JEPS108161  Juncus capitatus David Gowen 2005-6-4 403 Contra Costa Lime Ridge Open Space. Northeast corner of the park, just west of water tank.Growing in hard-packed eroded sandy area. Comment
  JEPS112447  Juncus effusus var. pacificus A. G. Murdock 2004-5-28 280 Contra Costa Refugio Valley 120 Comment
  CDA2696  Juncus gerardi Barbara Ertter, S. Matson 2003-5-31 18175 Contra Costa Carquinez Strait; Martinez Regional Shoreline along Pickleweed Trail west of Arch Bridge. 0 Comment
  UC1584658  Juncus occidentalis Jerry Powell 1989-3-26 1560 Contra Costa Point Molate Comment
  UC2013049  Juncus occidentalis Barbara Ertter with Lisa Schultheis 1996-9-2 15274 Contra Costa South side Mount Diablo, short distance down trail to Oyster point from Blackhawk Ridge road junction. Comment
  UC2028537  Juncus occidentalis Barbara Ertter 1998-2-15 15912 Contra Costa Shell Ridge Open Space on northwest base of Mount Diablo, open bank southeast of Indian Valley Pond. Comment
  UC2028588  Juncus oxymeris Barbara Ertter 1996-9-19 15299 Contra Costa Antioch Marina, edge of Dow Marsh lands. Comment
  POM300634  Juncus patens Mary L. Bowerman 1938-6-30 3703 Contra Costa Plants of Mount Diablo: Lower Canyon Spring, which is moister than the upper spring. 976 Comment
  JEPS100047  Juncus phaeocephalus var. paniculatus G. Smick 2003-6-6 GAS 211 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site 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
  UC2046369  Juncus usitatus Barbara Ertter 2015-10-9 22456 Contra Costa N end of walkway on east edge of Dow Marsh west of Antioch marina on San Joaquin River Delta. Comment
  UC691976  Juncus xiphioides Mary L. Bowerman 1930-6-28 383 Contra Costa Canyon Nook Picnic Grounds Mount Diablo 670 Comment
  POM210639  Juncus xiphioides Joseph A. Ewan 1933-10-15 8019 Contra Costa SW slope of Mt. Diablo. Comment
  CAS-BOT-BC80925  Juniperus californica Alice Eastwood 1922-3-17 11079 Contra Costa Mt. Diablo Comment
  POM212437  Juniperus californica Joseph A. Ewan 1933-10-15 8038 Contra Costa SW slope of Mt Diablo. 1067 Comment
  POM300616  Juniperus californica Mary L. Bowerman 1930-9-9 449 Contra Costa Mount Diablo: North Peak above Gabriel-Hinks : at top of a draw Comment
  RSA123532  Juniperus californica R. C. Wilson 1935-3-29 150 Contra Costa 1 mile southwest of Mt. Diablo Comment
  UC2045296 Image available Keckiella corymbosa Mary L. Bowerman 1930-6-7 276 Contra Costa Meridian Peak summit Comment
  UC2029004  Kickxia elatine Barbara Ertter with Michelle Lee et al. 2002-6-29 17965 Contra Costa Lower Curry Creek on east side of Mount Diablo, private property just above Morgan Territory. Comment
  UCD19084  Kochia scoparia subsp. scoparia Clyde Elmore 1983-7-20 s.n. Contra Costa Contra Costa County. Comment
  JEPS70570  Koeleria macrantha W. L. Jepson 1918-6-5 7601 Contra Costa Donner Canyon Mt. Diablo; vicinity of San Francisco Bay, Mt. Diablo 533 Comment
  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
  POM300735  Koeleria macrantha Mary L. Bowerman 1933-6-14 2274 Contra Costa Curry Cave Canyon: Ridge between two main forks., at north end of flat at upper end. Mount Diablo. Comment
  POM300736  Koeleria macrantha Mary L. Bowerman 1932-4-16 1354 Contra Costa Eagle Point ridge above Twin Peaks ('1682' point) Comment
  UC692395  Koeleria macrantha Mary L. Bowerman 1933-5-3 1983 Contra Costa Alder Creek Canyon Mount Diablo; , Alder Creek Canyon 731 Comment
  CAS-BOT-BC273614  Koeleria pyramidata Mary L. Bowerman 1933-5-2 1962 Contra Costa Mount Diablo. Below Pioneer Camp 762 Comment
  UC1050315  Kolkwitzia amabilis N. Floy Bracelin 1943-7-4 1584 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC499188  Kopsiopsis strobilacea W. W. Carruth no date on label s.n. Contra Costa Moraga Valley Comment
  CAS-BOT-BC340539  Lactuca serriola A. D. E. Elmer 1903-7-1 4612 Contra Costa Port Costa 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
  UC2029174  Lactuca virosa Barbara Ertter 2000-7-29 17443 Contra Costa Donner Basin on north side of Mount Diablo, Falls Trail at east fork of Donner Creek (between main fork and Wild Oat Canyon), trickle of surface water. Comment
  UC1818925  Lagophylla ramosissima Barbara Ertter, Mary Bowerman 1995-6-11 14253 Contra Costa Shell Ridge Recreation Area southeast of Walnut Creek, bank of Indian Creek above Indian Valley Pond, partial sun on Franciscan layer. 76 Comment
  CAS-BOT-BC341479  Lagophylla ramosissima R. Bacigalupi 1922-9-24 s.n. Contra Costa Fields between Clayton and Mitchell Canyon Comment
  JEPS112476  Lamium amplexicaule D. G. Kelch 2005-3-11 05 .34 Contra Costa Mt. Wanda - Martinez. Wanda. Fire road climbing North side of mountain 90 Comment
  POM6192  Lasthenia californica C. F. Baker 1903-4-25 s.n. Contra Costa Antioch Comment
  RSA523885  Lasthenia californica Barbara Ertter, Jim Jokerst, D. Magney 1989-4-5 8119 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  UC1118939  Lasthenia californica subsp. californica C. M. Belshaw 1936-5-12 2111 Contra Costa 3.7 mi ene Tassajero; Mt. Diablo Quad., plot 31 Comment
  UC194264  Lasthenia conjugens Edward Lee Greene 1887-4-16 Contra Costa Antioch Comment
  CAS-BOT-BC324481  Lasthenia ferrisiae Alice Eastwood 1914-3-14 3761 Contra Costa Byron Springs Comment
  JEPS89764  Lasthenia ferrisiae Dean William Taylor 1971-3-28 987 Contra Costa along Highway 4 1 mi e of the junction with Byron Highway Byron Highway; along Highway 4 3 Comment
  UC1363767  Lasthenia ferrisiae Robert Ornduff 1958-4-15 4898 Contra Costa alkali flats next to road Byron Hot Springs Comment
  UC895381  Lasthenia ferrisiae Alice Eastwood 1914-3-14 3761 Contra Costa Byron Springs Comment
  UC1051497  Lasthenia fremontii Herbert L. Mason 1952-4-14 Contra Costa 3.5 mi s Byron Comment
  UC1184085  Lasthenia fremontii Ren-Hwa Shan 1947-3-23 2013 Contra Costa 3.3 mi s Byron 7 Comment
  RSA114067  Lasthenia fremontii H. L. Mason 1952-4-14 14260 Contra Costa 3.5 miles S of Byron Comment
  JEPS111488  Lasthenia glaberrima Nancy Hillyard 2004-5-18 884 Contra Costa Briones Park Comment
  CAS-BOT-BC352928  Lasthenia glaberrima A. D. E. Elmer 1903-5-1 4321 Contra Costa Walnut Creek Comment
  CAS-BOT-BC352771  Lasthenia glabrata subsp. glabrata John Thomas Howell 1933-5-14 11240 Contra Costa St. Mary's College Comment
  POM301000  Lasthenia glabrata subsp. glabrata Mary L. Bowerman 1933-5-5 2000 Contra Costa Alamo Canyon, toward mouth. 305 Comment
  RSA31360  Lasthenia glabrata subsp. glabrata Joseph A. Ewan 1935-5-26 9300 Contra Costa E slope Bald Peak, San Pablo Ridge. 549 Comment
  JEPS99509  Lasthenia microglossa Mary Bowerman 1979-4-10 Contra Costa Mount Diablo, Mitchell Canyon opposite upper end of old reservoir. Comment
  UC191034  Lasthenia minor Katharine Brandegee 1904-5-5 Contra Costa near Antioch; Judsonville Comment
  UC30474  Lasthenia minor Jos. Burtt Davy 1895-4-7 937 Contra Costa Antioch Comment
  CAS-BOT-BC366306  Lasthenia minor J. T. Howell 1933-3-29 10895 Contra Costa Nortonville Comment
  UC1184086  Lasthenia platycarpha Ren Hwa Shan 1947-3-23 2013 a Contra Costa vernal pool 3.3 mi s Byron 7 Comment
  UC90011  Lasthenia platycarpha E. L. Greene 1884-1-1 Contra Costa Byron Springs Comment
  UC2027834  Lathyrus jepsonii var. californicus Barbara Ertter 2001-5-10 17635 Contra Costa North flank of Mount Diablo, SE of Mitchell Canyon trailhead, on traversing road to Mitchell Rock Trail. Comment
  UC2028326  Lathyrus jepsonii var. californicus Barbara Ertter with Richard K. Brummitt 1998-5-13 16140 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, south leg of Loughler Loop Trail just west of pass over central ridge. Comment
  UCD106240  Lathyrus jepsonii var. californicus R. N. Raynor 1939-4-15 s.n. Contra Costa Near San Ramon. Comment
  CAS-BOT-BC205013  Lathyrus jepsonii var. jepsonii Walter Knight; Brian Atwater; Joanne Dean; Rolf Bensler; Bryan Mortensen 1979-4-13 3362 Contra Costa Crooked Slough, Browns Island Comment
  JEPS64867  Lathyrus jepsonii var. jepsonii W. L. Jepson 1937-7-2 18448 Contra Costa 0.5 mi w Crockett; Carquinez Straits Comment
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Jan 2 2016
  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
  JEPS107088  Lathyrus latifolius Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14671 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay, northwest corner of area. Comment
  JEPS99995  Lathyrus latifolius G. Smick 2003-5-30 GAS 199 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS99993  Lathyrus vestitus A. Langston 2003-6-19 AL 51 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC15364  Lathyrus vestitus Ivar Tidestrom 1893-4-15 Contra Costa Sheep Island Comment
  POM19744  Lathyrus vestitus subsp. vestitus C. F. Baker 1903-4-28 2944 Contra Costa Mitchells Canyon, Mt. Diablo. Comment
  JEPS55375  Lathyrus vestitus var. vestitus W. L. Jepson 1918-6-5 7615 Contra Costa Donner Canyon Mt. Diablo 701 Comment
  JEPS55376  Lathyrus vestitus var. vestitus W. L. Jepson 1925-4-26 10692 Contra Costa Black Hills Mt. Diablo Comment
  UC85314  Lathyrus vestitus var. vestitus C. F. Baker 1903-4-28 2944 Contra Costa Mitchell Canyon Mt. Diablo Comment
  OBI15877  Layia chrysanthemoides Robert F. Hoover 1967-4-28 10506 Contra Costa Byron Hot Springs Comment
  CAS-BOT-BC323906  Layia chrysanthemoides Ira L. Wiggins 1930-4-17 4572 Contra Costa 1/4 mile S of Byron Comment
  CAS-BOT-BC323907  Layia chrysanthemoides Brandegee no date on sheet s.n. Contra Costa Antioch Comment
  CAS-BOT-BC321746  Layia gaillardioides Mary L. Bowerman 1935-4-17 2847 Contra Costa Mt. Diablo. North Road, 2 mi from North Gate, ridge west of chaparral. 335 Comment
  JEPS13505  Layia gaillardioides Robert F. Hoover 1936-4-16 973 Contra Costa e slope of Bald Peak e of Tilden Regional Park; San Pablo Ridge Comment
  UC89217  Layia gaillardioides K. Brandegee May 1884 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC321747  Layia gaillardioides M. K. Curran 1884-1-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC321750  Layia gaillardioides Joseph Andorfer Ewan 1936-4-15 9444 Contra Costa E. slope Bald Peak, San Pablo Ridge Comment
  CAS-BOT-BC321079  Layia glandulosa Alice Eastwood 1921-4-18 10271 Contra Costa Antioch Comment
  UC30636  Layia glandulosa E. L. Greene 1886-5-1 Contra Costa Antioch Comment
  UC912575  Layia glandulosa Herbert L. Mason 1929-3-31 5155 Contra Costa at Antioch (along Sacramento River); along Sacramento River Comment
  CAS-BOT-BC321085  Layia glandulosa Brandegee no date on sheet s.n. Contra Costa Antioch Comment
  CDA10019  Layia hieracioides D. G. Kelch 2007-6-3 7 .429 Contra Costa East Bay; Along gated portion of Hampton Rd N of San Pablo Reservoir. Comment
  CAS-BOT-BC327698  Layia pentachaeta Brandegee no date on sheet s.n. Contra Costa Antioch Comment
  CAS-BOT-BC370665  Layia platyglossa Alice Eastwood 1915-5-30 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC377908  Layia platyglossa L. R. Abrams 1921-5-25 8011 Contra Costa near summit of Mt. Diablo Comment
  SEINET3387416 Image available Layia platyglossa Lewis S. Rose 1933-4-17 33093 Contra Costa Antioch, California Comment
  UC828944  Layia platyglossa Lewis S. Rose 1933-4-17 33093 Contra Costa Antioch Comment
  UC1124480  Lepechinia calycina R. W. Lundh 1932-8-25 141 Contra Costa Mount Diablo 822 Comment
  JEPS111001  Lepechinia calycina W. L. Jepson 1921-11-19 9522 Contra Costa Chamise ridge, Mt. Diablo Comment
  OBI53981  Lepidium acutidens Barbara Ertter, Jim Jokerst and Dave Magney 1989-4-5 8127 Contra Costa SE county. Clifton Court Forebay, ca 15 air mi Sw of Stockton, T1S, R3E, sec 24 SESW Comment
  OBI60003  Lepidium acutidens Joseph Andorfer Ewan 1935-3-10 9136 Contra Costa Donovan rd Kicker Pass Comment
  JEPS111850  Lepidium appelianum A. G. Murdock 2003-6-2 86 Contra Costa Crockett - Eckley East of pier along tracks 2 Comment
  CDA37473  Lepidium campestre V. Guise 2012-5-1 PDR# 1649640 Contra Costa Near Old School Road, Tassajara; east of Danville. 0 Comment
  JEPS116575  Lepidium coronopus David Gowen 2006-9-16 661 Contra Costa Wildcat Regional Park on fire road leading from Rifle Range Rd. to the canyon bottom. Comment
  JEPS53610  Lepidium dictyotum J. Burtt Davy May 1898 Contra Costa Byron Springs Mount Diablo Region Comment
  UC1585845  Lepidium dictyotum Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8142 Contra Costa ca 15 air mi sw Stockton (w and adjacent to Clifton Court Forebay, se Contra Costa Co.) Comment
  CHSC67910  Lepidium dictyotum var. acutidens James D. Jokerst 1989-3-29 3068 Contra Costa 0.25 mi S of Byron Hot Springs NE of Livermore. Comment
  JEPS21345  Lepidium dictyotum var. acutidens J. Burtt Davy May 1898 Contra Costa Danville Mount Diablo Region Comment
  JEPS73691  Lepidium dictyotum var. acutidens L. R. Heckard with Wm. Hirano and Ted Niehaus 1968-3-3 1760 Contra Costa about 3 mi se Byron (at junction of Holey Road, along Byron-Bethany road) 7 Comment
  UC518001  Lepidium dictyotum var. acutidens Lewis S. Rose 1933-3-29 33041 Contra Costa Nortonville Comment
  JEPS100082  Lepidium latifolium A. Langston 2003-6-6 AL 34 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1535348  Lepidium latifolium Ernest L. Gordon 1987-6-1 Contra Costa Martinez Regional Shoreline, across from the railroad depot, in park Martinez Regional Shoreline Comment
  UC2029041  Lepidium latifolium Barbara Ertter 2000-3-30 16899 Contra Costa Mitchell Canyon trailhead, adjacent to horse staging area in parking lot. Comment
  JEPS53652  Lepidium latipes W. L. Jepson 1931-4-5 15720 Contra Costa Nortonville 396 Comment
  JEPS53660  Lepidium latipes W. L. Jepson 1918-6-4 7594 Contra Costa near Clayton; Mt. Diablo, Donner Canyon 137 Comment
  JEPS90380  Lepidium latipes var. latipes Dean Wm. Taylor with Glenn Clifton 1990-3-6 10612 Contra Costa Byron Hot Springs Rd. 1 mi s Holey Road ((Clifton Court Forebay 7 1/2 quadrangle)); San Joaquin Valley 24 Comment
  CAS-BOT-BC89896  Lepidium nitidum Lewis S. Rose 1933-3-29 33045 Contra Costa Pittsburg. Comment
  CAS-BOT-BC89897  Lepidium nitidum Lewis S. Rose 1933-3-29 33045 Contra Costa Pittsburg. Comment
  CHSC67205  Lepidium nitidum James D. Jokerst 1991-3-28 3227 Contra Costa Kellogg Reservoir Inundation Zone at 'Upper Greasewoods,' N of Livermore. Comment
  UC1362354  Lepidium nitidum Olive Dyer 1936-3-25 214 Contra Costa e side Wildcat Canyon Comment
  CAS-BOT-BC89899  Lepidium nitidum Reed C. Rollins 1946-3-25 3042 Contra Costa Western slope of Mount Diablo. Comment
  UC2027967  Lepidium pinnatifidum Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15668 Contra Costa Martinez Regional Shoreline, south edge of Carquinez Strait. Comment
  JEPS25136  Lepidium strictum G. Thomas Robbins 1959-4-26 4006 Contra Costa about 1 mi ne Giant (and about 0.25 mi n of San Pablo Oil Tank Farm) 7 Comment
  UC2031424  Leptosiphon androsaceus Barbara Ertter 1991-6-1 10085 Contra Costa Las Trampas Regional Wilderness in hills W of Danville, Elderberry Trail ca. 1/2 mi from trailhead Comment
  UCD102370  Leptosiphon androsaceus Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Burma Road at Mount Diablo. 470 Comment
  POM300972  Leptosiphon androsaceus Mary L. Bowerman 1933-4-15 1861 Contra Costa Second ridge southeast of Arroyo del Cerro Comment
  UC2028992  Leptosiphon androsaceus Barbara Ertter 2000-5-14 17003 Contra Costa Donner Canyon on north side of Mount Diablo, serpentinitic sites in general area of junction of Donner Canyon, Cardinet Oaks, and Meridian Ridge roads, edged by Arctostaphylos glauca et al. Comment
  UC2027729  Leptosiphon bicolor Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15507 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  CAS-BOT-BC324119  Lessingia glandulifera var. glandulifera T. S. Brandegee 1883-1-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC324114  Lessingia glandulifera var. glandulifera T. S. Brandegee 1883-1-1 s.n. Contra Costa Antioch Comment
  RSA107412  Lessingia pectinata var. tenuipes L. S. Rose 1955-10-17 55185 Contra Costa Antioch 15 Comment
  JEPS25155  Leymus X multiflorus G. Thomas Robbins with John Weiler 1959-5-23 4026 Contra Costa Brooks Island San Francisco Bay, Richmond (slopes on w side) Comment
  SEINET10595833  Leymus condensatus Alan A. Beetle 1941-6-24 Beetle 1751 Contra Costa Pt. Richmond on San Francisco Bay, dense stand under Quercus. Comment
  RSA108330  Leymus triticoides Frank W. Gould 1941-5-16 1298 Contra Costa In roadside ditch, 1/2 mile east of Lafayette on C.S. Highway 24. Comment
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Nov 1 2011
  RSA108362  Leymus triticoides Frank W. Gould 1941-5-6 1286 Contra Costa 2.3 miles from Walnut Creek on Danville road. Comment
  SEINET3840826  Leymus triticoides Unknown 2006-6-23 6 .321 Contra Costa West Valona, West of the Zampa Bridge above San Pablo avenue, along a small stream draining north into the Western end of the Carquinez Strait 91 Comment
  UCD87590  Leymus triticoides P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UCD87775  Leymus triticoides M. Wiesendanger 1926-6-1 1527 Contra Costa Richmond. Comment
  CAS-BOT-BC272215  Leymus triticoides R. E. Frenkel 1964-7-25 704 Contra Costa In vicinity of PG&E pole on Morgan territory Road, 0.2 mile south of summit 637 Comment
  JEPS128148  Ligustrum ovalifolium Eric Wrubel 2010-10-1 NPS 2 Contra Costa Joh Muir National Historic Site, Martinez. Mount Wand trailhead. Comment
  RSA0029782  Lilaea scilloides Barbara Ertter, Alan Prather 2003-6-7 18191 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, pond NE of main trailhead. Comment
  CAS-BOT-BC211109  Lilaeopsis masonii Walter Knight; Irja Knight 1977-6-18 s.n. Contra Costa Antioch Sand Dunes, Little Corral site Comment
  UC1101455  Lilaeopsis masonii Herbert L. Mason April, 1954 Contra Costa n. end Antioch Bridge Comment
  UC1178018  Lilium pardalinum Herbert L. Mason 1955-7-14 14633 Contra Costa 0.5 mi e Antioch Bridge Comment
  UC691999  Lilium pardalinum Mary L. Bowerman 1935-6-21 3144 Contra Costa e fork Arroyo del Cerro; Mount Diablo 289 Comment
  UC692005  Lilium pardalinum Mary L. Bowerman 1935-6-21 3144 Contra Costa e fork Arroyo del Cerro; Mount Diablo 289 Comment
  UC971818  Limnanthes douglasii subsp. rosea Charles T. Mason Jr. 1948-3-27 1134 Contra Costa 0.1 mi s Byron Hot Springs road (along Byron-Bethany road) Comment
  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
  CDA33335  Limnobium laevigatum Paul Ryan/Alan Hyde 2010-10-4 PDR# 1596381 Contra Costa Near Rio Vista; tidal waterway, 200 yards from deep water channel 0 Comment
  UC1563862  Limonium californicum Barbara Ertter with Elizabeth Neese 1988-10-15 7981 Contra Costa El Cerrito; marsh w of I-580, w side along Rydin Road n of Central Ave. Comment
  UCD35164  Limonium californicum Beecher Crampton 1950-8-5 632 Contra Costa San Pablo Canal, NW of Richmond. Comment
  UC1736382  Limosella acaulis Dean W. Taylor 1992-4-16 12393 Contra Costa S of Byron Hot Springs, in swale draining on E margin of NE1/4 SE1/4 Section 34 45 Comment
  UC400968  Linanthus ambiguus J. G. Lemmon Contra Costa Mt. Diablo Comment
  UC691637  Linanthus androsaceus Mary L. Bowerman 1931-4-18 716 Contra Costa Sycamore Canyon Mount Diablo 335 Comment
  UC1819039  Linanthus bicolor Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14239 Contra Costa South side Mount Diablo, road to Sheepherders Springs 1/2 mile north of Curry Point from Sloan Road, clay at edge of grassland/woodland. 426 Comment
  JEPS108216  Linanthus ciliatus David Gowen 2005-4-26 269 Contra Costa Mt. Diablo State Park. Near serpentine area just north of Cardinet Oaks Rd. Comment
  UC691638  Linanthus pygmaeus subsp. continentalis Mary L. Bowerman 1933-5-25 2178 Contra Costa w end of s-face Oyster Ridge 396 Comment
  UC964003  Linanthus pygmaeus subsp. continentalis R. F. Hoover 1939-4-13 4020 Contra Costa w branch Head of Markley Canyon Comment
  JEPS116789  Linanthus pygmaeus subsp. continentalis David Gowen 2006-6-14 611 Contra Costa Morgan Territory Regional Park; At the NW end of Eagle Trail. Comment
  UC2062459  Linum bienne Barbara Ertter 2002-5-16 17852 Contra Costa Richmond Field Station (UC-Berkeley) at end of Lark Lane. Comment
  UC2062654  Linum usitatissimum Barbara Ertter 2004-4-25 18367 Contra Costa Coulter Pine Trail on north side of Mount Diablo State Park. Comment
  CAS-BOT-BC430619  Lithophragma affine John Thomas Howell 1933-5-14 11280 Contra Costa Hills east of St. Mary's College Comment
  POM274347  Lithophragma affine subsp. affine Lyman Benson 1931-3-18 2663 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 Comment
  POM203654  Lithophragma affine subsp. affine John T. Howell 1933-5-14 11280 Contra Costa Hills east of St. Mary s college Comment
  JEPS105700  Lithophragma bolanderi David Gowen 2004-3-28 21 Contra Costa Black Diamond Mines Regional Preserve. River View Loop trail southeast of the Arata Overlook trail junction. Comment
  UC114988  Lithophragma bolanderi T. S. Brandegee Apr 1889 Contra Costa Comment
  CAS-BOT-BC435625  Lithophragma heterophyllum Mary L. Bowerman 1931-3-21 585 Contra Costa Sycamore Canyon Comment
  UCR246792  Lithophragma heterophyllum Dean Kelch 2011-5-4 11 .226 Contra Costa Central Coast, near Morgan Territory Regional Park, west of Morgan Territory Road 610 Comment
  UC32010  Logfia filaginoides Harley P. Chandler 1901-4-5 963 Contra Costa Mt. Diablo Comment
  UC691819  Logfia filaginoides Mary L. Bowerman 1935-5-1 2944 a Contra Costa West road 4.4 mi from entrance; Mount Diablo 381 Comment
  UC912261  Logfia filaginoides Lucile Mason 1934-4-8 Contra Costa Marsh Creek- Livermore Road; Curry Creek Comment
  CAS-BOT-BC283395  Lolium multiflorum Mary L. Bowerman 1933-5-25 2199 Contra Costa Mount Diablo. Alamo Canyon: E-facing slope above Wilson's barn Comment
  CDA9485  Lolium perenne D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .21 Contra Costa Byron Airport. Comment
  UC692349  Lomatium californicum Mary L. Bowerman 1933-4-26 1926 Contra Costa North Peak ridge e.-s.e. of the peak Mt. Diablo (just n. of crest near a solitary Pinus sabiniana which is on the crest of the ridge) 518 Comment
  JEPS128781  Lomatium caruifolium Kevin Hintsa 2000-4-6 Contra Costa Mount Diablo State Park, Mitchell Canyon at connector trail between lower section of Black Point Trail and lower White Canyon (on N edge of trail barely W of Black Point Trail's eastern section). Comment
  UC21203  Lomatium dasycarpum subsp. dasycarpum H. M. Hall 1906-3-16 1658 Contra Costa Point Richmond Comment
  UC21279  Lomatium dasycarpum subsp. dasycarpum H. M. Hall 1901-4-5 1747 Contra Costa Mt. Diablo 640 Comment
  UC106225  Lomatium macrocarpum Katharine Curran May 1885 Contra Costa Antioch Comment
  UC691771  Lomatium macrocarpum Mary L. Bowerman 1935-5-1 2945 Contra Costa w. rd. 4.4 mi. from entrance Mt. Diablo 381 Comment
  UCSB4606  Lomatium nudicaule Keator, Glenn 1959-7-1 Contra Costa 1/4 mile above Laurel camp on Mt. Diablo Comment
  UC691424  Lomatium utriculatum Mary L. Bowerman 1932-2-28 1091 Contra Costa ridge E of Rhine Canyon 487 Comment
  JEPS12847  Lonicera hispidula var. vacillans W. L. Jepson 1894-10-1 Contra Costa towards Redwood Peak; Moraga Valley Comment
Read comments
Aug 9 2011
  CAS-BOT-BC240661  Lonicera interrupta H. E. McMinn 1922-10-1 91 b Contra Costa Mitchelle Canon [Canyon], Mt. Diablo Comment
  POM181453  Lonicera involucrata Ira L. Higgins 1930-4-18 4594 Contra Costa Levee, east end of Jersey Island. Comment
  RSA666356  Lonicera japonica Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10694 Contra Costa Browns Island N of Pittsburg near confluence of Sacramento and San Joaquin rivers opposite Pittsburg Marina; west end of island. Comment
  UC1050904  Lonicera japonica N. Floy Bracelin 1942-6-7 2112 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1005847  Lonicera tatarica N. Floy Bracelin 1945-4-1 2840 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC200901  Lotus Elsie M. Zeile 1921-8-6 s.n. Contra Costa Shepherd's Canon [Canyon] Comment
  JEPS99996  Lotus corniculatus A. Langston 2003-7-2 AL 58 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC692532  Lotus humistratus Mary L. Bowerman 1933-5-25 2177 Contra Costa w end of s-face Oyster Ridge; Mount Diablo 396 Comment
  UC1129013  Lotus purshianus var. purshianus C. M. Belshaw 1936-5-13 2123 Contra Costa n of Horse Valley; Mt. Diablo Quad. 121 Comment
  JEPS18165  Lotus wrangelianus Rimo Bacigalupi with G. T. Robbins 1956-5-11 5639 Contra Costa 1.3 mi e Pinole (between State Hwy 4 (Franklin Canyon Rd) and Santa Fe Ry right-of-way, 0.25 mi e of jct with U.S. Hwy 40) 22 Comment
  JEPS55837  Lotus wrangelianus W. L. Jepson May 22 1891-May 23 1891 13796 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC478118  Ludwigia Walter Knight 1978-10-11 3325 Contra Costa Browns Island, Point Emmet Comment
  UC726775  Lupinus A. A. Heller 1938-4-9 15019 Contra Costa near the w end Antioch Bridge; near the w end of the Antioch Bridge Comment
  POM318910  Lupinus Patricia Wilder 1961-8-29 1073 Contra Costa Walnut Creek, near Calif. Hwy 24 west side of city; Coast Mt. Range 42 Comment
  UC1970563  Lupinus Donald G. Nelson 1937-4-24 516 Contra Costa in rolling hill country north of Byron; Marsh Creek Road Comment
  UCD36021  Lupinus Beecher Crampton 1949-5-29 466 Contra Costa 1 mile north of Richmond, patch along Southern Pacific Railroad. 15 Comment
  UC15783  Lupinus albifrons unknown 1038 Contra Costa Walnut Creek Comment
  UC1713207  Lupinus albifrons C. F. Baker 1903-4-25 2823 Contra Costa Antioch Comment
  UC2042499  Lupinus albifrons Barbara Kelly 2011-4-18 Contra Costa Tilden Regional Park, along Lomas Cantadas Rd., on a steep, rocky slope above the road. Comment
  CAS-BOT-BC201368  Lupinus albifrons var. albifrons Alice Eastwood 1921-4-18 10282 Contra Costa Antioch Comment
  SEINET5766808 Image available Lupinus albifrons var. albifrons A. A. Heller 1908-1 8887 Contra Costa Antioch 12 Comment
  CAS-BOT-BC201373  Lupinus albifrons var. albifrons Charles Piper Smith 1947-8-8 47709 Contra Costa Crow Creek Canyon Road - San Ramon Summit Comment
  CAS-BOT-BC201378  Lupinus albifrons var. albifrons Charles Piper Smith 1947-11-10 47710 Contra Costa Crow Creek Canyon Road - San Ramon. Field 0.9 miles southwest Comment
  UC1795854  Lupinus albifrons var. albifrons Barbara Ertter, Brad Olson, Diane Lake 1996-4-14 14594 Contra Costa Sycamore Spring Trail off Prospectors Gap Rd., east side Mt. Diablo. 640 Comment
  HSC101954  Lupinus albifrons var. douglasii Nikolaus Gillen, Michelle Bihler 2014-3-20 5 Contra Costa Mount Diablo State Park. Back Creek Trail. 340 Comment
  JEPS112354  Lupinus bicolor Dean G. Kelch and Andrew G. Murdock 2004-3-12 04 .029 Contra Costa Pinole Valley, County: Contra Costa; Hillside and canyon above Wright Road. Off of Pinole Valley Road. Contra Coasta County, CA. Comment
  JEPS112402  Lupinus bicolor Dean G. Kelch and Andrew G. Murdock 2005-4-24 05 .166 Contra Costa Franklin Canyon; County: Contra Costa; Franklin Canyon, Contra Costa County, CA. Collier Hill. West Carbon. Comment
  UC1197281  Lupinus bicolor J. P. Tracy 1900-3-24 624 Contra Costa Dry Hill Point Richmond (Point Richmond); Region about San Francisco Bay, Point Richmond 15 Comment
  UC75240  Lupinus bicolor C. F. Baker 1903-4-25 2822 Contra Costa Antioch Comment
  UCR12074  Lupinus bicolor Coleta A. Lawler 1964-5-8 057 Contra Costa San Francisco Bay Region, Hampton Road, 3 .7 mi south of junction with Alhambra Valley Road; c. 10 miles northwest of Lafayette 46 Comment
  UCD107278  Lupinus bicolor P. B. Kennedy 1929-4-21 s.n. Contra Costa St. Mary's College, Moraga Valley. Comment
  NY16041  Lupinus bicolor subsp. tridentatus A. A. Heller 1928-4-15 14507 Contra Costa Near Brentwood Comment
  UCD151190  Lupinus chamissonis James A. Neilson Jr. 1974-8-13 3024 Contra Costa west end of Bradford Island. (Elevation estimated using Google Earth by label maker.) 0 Comment
  UC2070479  Lupinus formosus Barbara Ertter with David Gowen 2006-6-6 18677 a Contra Costa Upper San Leandro Reservoir Watershed (EBMUD) south of Moraga. Comment
  JEPS112364  Lupinus latifolius var. latifolius Dean G. Kelch and Andrew G. Murdock 2004-4-30 256 Contra Costa Vaca Canyon; County: Contra Costa; On steep south slope along road. Comment
  UC15918  Lupinus luteolus F. P. Nutting 1893-6-29 Contra Costa Fish Ranch Comment
  JEPS25129  Lupinus microcarpus var. densiflorus G. Thomas Robbins 1959-4-18 3992 Contra Costa along Western Drive near and n Pt. Richmond (western base of Potrero Hills, Richmond); western base of Potrero Hills, n of Pt. Richmond 4 Comment
  UC1562851  Lupinus microcarpus var. densiflorus Barbara Ertter with Elizabeth Neese 1988-4-24 7450 Contra Costa n of e-w part of Black Diamond Trail sw Antioch (Black Diamond Mines Regional Preserve); Black Diamond Mines Regional Preserve Comment
  UCR197907  Lupinus microcarpus var. densiflorus Beecher Crampton 1950-4-22 525 Contra Costa Above site of Judsonville, west of old Empire mine 183 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
  JEPS65467  Lupinus microcarpus var. microcarpus W. L. Jepson 1921-5-22 9214 Contra Costa Mt. Diablo; Mt. Diablo, s slope 609 Comment
  SJSU10780  Lupinus microcarpus var. microcarpus D. C. Bettencourt 1959-4-18 Contra Costa Mt Diablo Foothills 304 Comment
  UC155195  Lupinus microcarpus var. microcarpus Katharine Brandegee 1907-5-5 Contra Costa Antioch Comment
  UC201023  Lupinus microcarpus var. microcarpus Katharine Brandegee June 1918 Contra Costa El Dorado St. Richmond Annex (Richmond Annex); , El Dorado St. Comment
  UC201025  Lupinus microcarpus var. microcarpus Katharine Brandegee 1918-6-16 Contra Costa El Dorado St. Richmond Annex (Richmond Annex); , El Dorado St. Comment
  UC2028172  Lupinus microcarpus var. microcarpus Barbara Ertter 1998-5-3 16050 Contra Costa Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. Comment
  UCD109081  Lupinus nanus P. B. Kennedy 1916-5-11 31 Contra Costa Grand View Terrace; Richmond District. Comment
  UCSB10857  Lupinus nanus Judy Hayes 1961-3-29 48 Contra Costa collected 2.0 mi N, along Cliffhill Road Danville - Danville and Cliffhill Road Comment
  SEINET10870817  Lupinus nanus subsp. menkerae Frenkel 1964-3-27 FRENKEL 408 Contra Costa Leaves fine, red-streaked. Large flower observed growing amidst common small Flowers. On giant road, .4 mi n of atsf r.r. Crossing, richmond. 15 Comment
  RSA120097  Lupinus nanus subsp. nanus L. D. Christenson 1935-4-11 78 Contra Costa East of Mt. Diablo. Comment
  UC2070441  Lupinus pachylobus Barbara Ertter with Linda Vorobik 2002-4-6 17823 Contra Costa South side of Mount Diablo, roadside NW of Curry Point trailhead. Comment
  CDA37273  Lupinus succulentus D. G. Kelch 2011-3-31 11 .078 Contra Costa Carquinez Region; Richmond; Hilltop Lake Park. Comment
  CHSC21642  Lupinus succulentus Willis Ball 1975-3-2 464 Contra Costa Contra Loma Regional Park. In area #4. At edge of beach on e side of lake ca. 50 yds s of dam. 33 Comment
  UC1300901  Lupinus succulentus Helen K. Sharsmith 1962-4-7 4916 Contra Costa Appian Way near El Sobrante (San Francisco Bay Region); San Francisco Bay region, Appian Way nr El Sobrante 121 Comment
  POM181435  Lupinus succulentus I. L. Wiggins 1930-4-7 4567 Contra Costa Near Mountain Horse, Altamont Pass 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
  JEPS67204  Luzula macrantha W. L. Jepson 1943-4-24 20761 Contra Costa Vicinity San Francisco Bay, Oakland Hills, Moraga Ridge Comment
Read comments
Jan 25 2008
  CDA5759  Lycium chinense T. C. Fuller 1964-11-6 12810 Contra Costa Knightsen. 0 Comment
  CDA33071  Lycopus americanus D. G. Kelch 2010-10-5 10 .425 Contra Costa The Delta.; Antioch shoreline. West of Fulton shipyard. Comment
  UC1607619  Lycopus asper Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, and Amy Hiss 1991-8-18 10691 Contra Costa w. end of Browns Isl. n. of Pittsburg (near confluence of Sacramento & San Joaquin Rivers, opposite Pittsburg Marina); Browns Isl. Comment
  RSA0014832  Lythrum californicum Mary L. Bowerman 1933-8-26 2416 Contra Costa Mount Diablo: Spring at top of south road. Comment
  JEPS112515  Lythrum hyssopifolia D. G. Kelch 2004-7-9 04 .302 Contra Costa McEwen Road. McEwen marsh. North of Cummings Skyway 130 Comment
  UC692637  Lythrum hyssopifolia Mary L. Bowerman 1930-6-28 391 Contra Costa Mount Diablo, Lower Silver Spring Lower Silver Spring; Mount Diablo, Lower Silver Spring Comment
  UC692638  Lythrum hyssopifolia Mary L. Bowerman 1933-8-2 2393 Contra Costa Mount Diablo, Boulevard Spring, by West Road Boulevard Spring; Mount Diablo, Boulevard Spring Comment
  UCD150881  Lythrum hyssopifolia James A. Neilson Jr. 1972-11-2 3617 Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 1 Comment
  CAS-BOT-BC342682  Madia elegans Alice Eastwood 1915-5-30 4462 Contra Costa Mt. Diablo Comment
  UCD102388  Madia elegans Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. North Peak Road to North Peak. 1000 Comment
  UC2027823  Madia elegans Barbara Ertter 2000-11-19 17552 Contra Costa Briones Regional Park, Black Oak Trail. Comment
  UC1613945  Madia gracilis Charles M. Belshaw 1935-6-24 1025 Contra Costa Sobrante Hills Comment
  UC1795004  Madia gracilis R. K. Brummitt and B. Ertter 1998-5-6 19781 Contra Costa Mt. Diablo, NW side, path to Mitchell's Rock 300 Comment
  UC691765  Madia gracilis Mary L. Bowerman 1931-4-25 754 Contra Costa two mi by road from west entrance = North Gate; Mount Diablo Comment
  UCD149006  Madia gracilis D. Kelch 2009-5-23 09. 293 Contra Costa Mt. Tamalpais. Ocean View Trail. 114 Comment
  CAS-BOT-BC342986  Madia gracilis Mary L. Bowerman 1932-4-27 1364 Contra Costa Mount Diablo. Oyster Ridge, south face: Grassy west-facing slope of ridge west of Riggs Canyon Comment
  CAS-BOT-BC342987  Madia gracilis David D. Keck 1941-6-5 5309 Contra Costa Berkeley Hills, Fish Creek Road, 1/4 mi. W. of east portal of Broadway Tunnel 335 Comment
  UC1795769  Madia gracilis Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14677 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay; grassland/scrub at northeast corner of area. Comment
  CAS-BOT-BC8141  Madia radiata Albert Kellogg s.n. Contra Costa Antioch Comment
  JEPS6745  Madia radiata R. F. Hoover 1941-4-12 4836 Contra Costa 1 mi n Lone Tree Valley Comment
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Aug 21 2017
  JEPS7400  Madia radiata R. F. Hoover 1938-3-25 2898 Contra Costa Lone Tree Valley Comment
  SD8606  Madia radiata Brandegee Apr 1889 Contra Costa Antioch Comment
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Jan 9 2007
  UC112946  Madia radiata Mrs. K. Brandegee 1908-4-9 50 Contra Costa near Antioch Comment
  UC762519  Madia radiata R. F. Hoover 1941-4-12 4836 Contra Costa 1 mi n Lone Tree Valley Comment
  RSA0008526  Madia radiata A. A. Heller 1938-4-9 s.n. Contra Costa 3 miles southwest of Antioch Comment
  CDA42364  Madia sativa D. G. Kelch, Vince Guise 2012-7-26 12 .239 Contra Costa Wildcat Canyon Park, Alvarado Unit. Comment
  JEPS75563  Madia sativa P. F. Yorks 1974-5-19 167 Contra Costa ca 1.0 km s Bear Creek Road (on Hampton Road in Hampton Road Natural Reserve) 180 Comment
  UC1555376  Madia sativa Jerry Powell 1988-6-28 1540 Contra Costa area along railroad west Richmond, Point Molate Comment
  CAS-BOT-BC343582  Madia sativa David D. Keck 1933-11-2 2614 Contra Costa 1 mi. W. of Avon, N. Contra Costa County Comment
  POM267969  Madia sativa D. D. Keck 1941-6-5 5310 Contra Costa Berkeley Hills, Fish Creek Road 1/4 mile W of E portal of Broadway Tunnel. 335 Comment
  UC2028245  Malacothamnus fasciculatus Barbara Ertter, Tony Morosco 1998-9-18 16417 Contra Costa West edge Lime Ridge Open Space northwest of Mount Diablo. Comment
  SD70001  Malacothamnus fremontii Darley F. Howe 1968-5-20 4515 Contra Costa Nortonville. Comment
  UC1042342  Malacothamnus fremontii Lewis S. Rose 1954-6-29 54081 Contra Costa Nortonville Comment
  UC109097  Malacothamnus fremontii T. S. Brandegee Apr 1889 Contra Costa antioch Comment
  POM301021  Malacothamnus hallii Mary L. Bowerman 1933-6-3 2223 Contra Costa 2 miles by road from North Gate Comment
  UC692693  Malacothamnus hallii Mary L. Bowerman 1932-9-24 1590 Contra Costa Ridge running w from Twin Peak; Mount Diablo 335 Comment
  CAS-BOT-BC204089  Malacothamnus hallii Lewis S. Rose 1954-6-29 54082 Contra Costa Mt. Diablo 2 1/2 mi. n. of Turtle Rock 182 Comment
  CAS-BOT-BC204095  Malacothamnus hallii John Thomas Howell; T. H. Kearney 1950-7-5 26634 Contra Costa On North Road, Mt. Diablo 259 Comment
  SEINET10680800 Image available Malacothamnus hallii Harvey M. Hall 1916-5-30 Hall 301 Contra Costa Mt. Diablo. On the westerly side north of Pine Canon, Upper Sonoran Zone. Growing on stony south slope, associated with Artemisia californica, Salvia mellifera, Mimulus glutinosus, and Lofus glaber, and with thickets of Adenostoma fasciculatum near by. 275 Comment
  UC691436  Malacothrix clevelandii Mary L. Bowerman 1933-5-3 1970 Contra Costa due s Meridian Peak summit (Mount Diablo); Mount Diablo 731 Comment
  CAS-BOT-BC345370  Malacothrix clevelandii Brandegee No date on label s.n. Contra Costa Antioch Comment
  CAS-BOT-BC347392  Malacothrix floccifera Alice Eastwood 1915-5-30 4516 Contra Costa Mt. Diablo Comment
  UC133354  Malacothrix floccifera C. F. Baker 1903-4-28 2948 Contra Costa Marsh Creek Mount Diablo Comment
  JEPS111546  Malva nicaeensis D. G. Kelch 2005-3-13 05 .47 Contra Costa Crockett - weedy area under Zampa Bridge 4 Comment
  CDA39046  Malva parviflora D. G. Kelch 2011-6-5 11 .575 Contra Costa Carquinez Strait; South of Crockett, south of Cummings Skyway. Comment
  UCD116644  Malva parviflora John Thomas Howell; Gordon H, True 1972-6-29 48923 Contra Costa Byron Hot Springs Road southeast of Byron. Comment
  SEINET3840811  Malvella leprosa Unknown 2006-7-14 6 .332 Contra Costa Between route 4 and Carbon road, east Rodeo 24 Comment
  UC2027740  Malvella leprosa Barbara Ertter 1997-1-5 15443 Contra Costa Lime Ridge Open Space on northwest side of Mount Diablo, section on north side of Ygnacio Valley Road. Comment
  JEPS100091  Marah fabacea G. Smick 2003-2-25 GAS 57 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  HSC7016  Marah fabacea Greg Bos 1963-3-9 29 Contra Costa Pinole Valley Rd., SE of Pinole 61 Comment
  UC2028067  Marah fabacea Barbara Ertter with Tony Morosco 1998-4-12 16007 Contra Costa Mount Olympia on north side of Mount Diablo, below false summit on East Trail. Comment
  UC1586020  Marsilea vestita subsp. vestita Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8131 Contra Costa ca. 15 air mi sw Stockton (w and adjacent to Clifton Court Forebay); se Contra Costa Co. Comment
  CHSC23343  Matricaria discoidea Willis Ball 1975-3-26 507 Contra Costa Contra Loma Regional Park. In area #1. All around the restroom facilities at s end of lake. 30 Comment
  JEPS99957  Matricaria discoidea G. Smick 2003-3-27 GAS 91 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC348260  Matricaria occidentalis R. E. Frenkel 1963-5-15 200 Contra Costa East of Bixler Road between Marsh Creek Road and Point of Timber Road, about 200 yards north of pink house on west side of Road, and about 10-20 m. east of fence Comment
  UC635484  Meconella oregana Herbert L. Mason 1927-4-16 3666 Contra Costa Wild Cat Canyon Berkeley Hills Comment
  JEPS112340  Medicago arabica Dean G. Kelch and Andrew G. Murdock 2004-5-2 04 .169 Contra Costa Crockett - Edwards Canyon; County: Contra Coasta; Edwards Canyon, Crockett, Contra Coasta County, CA. Comment
  UC1606303  Medicago arabica Barbara Ertter, Chris Thayer 1993-5-7 11699 Contra Costa on Wildcat Canyon Rd. 1/2 mi e Inspiration Point (e of Tilden Park); East Bay Municipal Utilities District land, Hopkins Spring 304 Comment
  UC2028593  Medicago arabica Barbara Ertter with Dorothy Frantz 2001-5-10 17642 Contra Costa Pine Canyon on west side of Mount Diablo, junction of Stage Road and Sunset Trail Comment
  OBI59999  Medicago polymorpha Joseph Andorfer Ewan 1936-5-3 9505 Contra Costa Wildcat Crk Comment
  POM300626  Melica californica Mary L. Bowerman 1935-4-22 2883 Contra Costa Ridge west of Pioneer Road (west of Stage Road). East face of ridge; Mount Diablo. 854 Comment
  UC188878  Melica californica Harley P. Chandler 1901-4-5 965 Contra Costa between Pine Canyon and Mt. Diablo Summit; Mt. Diablo Region Comment
  UCD86441  Melica californica Beecher Crampton 1956-5-14 3392 Contra Costa 7 miles southwest of Antioch, just east of old Nortonville. 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
  CAS-BOT-BC262510  Melica torreyana Mary L. Bowerman 1935-5-25 3071 Contra Costa Mount Diablo. Meridian Peak south of the summit (east of the hairpin turn on road) 1066 Comment
  UC691224  Melica torreyana Mary L. Bowerman 1933-4-26 1935 a Contra Costa Perkins Canyon branch between the main e ridge of North Peak and ridge to its south (canyon se from North Peak) Mt. Diablo 487 Comment
  POM300623  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. 1067 Comment
  JEPS100114  Melilotus indicus G. Smick 2003-5-20 GAS 195 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC651294  Melilotus indicus Ira L. Wiggins 1930-4-18 4599 Contra Costa Jersey Island Comment
  UC634868  Melissa officinalis H. L. Mason 1925-9-17 2235 Contra Costa stream in Redwood Canyon Redwood Canyon Comment
  OBI13670  Melissa officinalis G. Thomas Robbins 1959-8-1 4115 Contra Costa Las Trampas Crk, about 1.5 mi SE of St. Marys College 183 Comment
  JEPS112482  Mentha X piperita D. G. Kelch 2004-5-7 04 .193 Contra Costa Ca ada del Cierbo 40 Comment
  UC1584858  Mentha aquatica Jerry Powell 1987-9-15 1523 Contra Costa Point Molate; marshy area at creek mouth to beach Comment
  UC691474  Mentha spicata Mary L. Bowerman 1938-11-19 3733 Contra Costa Mitchell Canyon Mount Diablo (by stream); , Mitchell Canyon 228 Comment
  JEPS112484  Mentha spicata var. spicata D. G. Kelch 2004-4-30 04 .159 Contra Costa Alhambra Valley Along Alhambra Valley Road 120 Comment
  UC108375  Mentzelia affinis Michener and Bioletti 1892-4-10 Contra Costa Byron Comment
  UC692630  Mentzelia micrantha Mary L. Bowerman 1930-6-10 306 Contra Costa Mount Diablo, Meridian Peak summit Comment
  UC697192  Mentzelia micrantha Mary L. Bowerman 1933-5-2 Contra Costa Below Pioneer Camp (and slightly east); Mount Diablo 762 Comment
  CDA33748  Mercurialis ambigua D. G. Kelch 2011-2-5 11 .018 Contra Costa Crockett below Zampa Bridge. 0 Comment
  CDA387  Mesembryanthemum nodiflorum D. G. Kelch, Michael Park 2008-9-1 8 .291 Contra Costa Carquinez Strait; 200 m W of Pacheco Slough, E of Martinez. Comment
  CDA8377  Micropus californicus var. californicus D. G. Kelch, A. G. Murdock 2004-4-3 4 .155 Contra Costa Carquinez Strait Region; Mt. Wanda - Martinez Comment
  JEPS111701  Micropus californicus var. californicus D. G. Kelch 2004-4-25 04 .125 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Hill Southwest of large cottonwood. West of Martinez at gated end of Scenic Dr 50 Comment
  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
  UCSC007286  Micropus californicus var. subvestitus Randall Morgan 2010-5-21 5027 Contra Costa Dan Cook Canyon trail, Mount Diablo Comment
  CAS-BOT-BC348788  Microseris campestris Niall McCarten; V. I. Dains 1986-1-1 03231522 41 Contra Costa Ecos East Contra Costa County. W of Camino Diablo & Kellogg Creek Comment
  UCD77859  Microseris douglasii Robert E. Preston 1997-3-8 1018 Contra Costa Black Diamond Mines Regional Park, along Stewartsville Trail. 91 Comment
  UC2027816  Microseris douglasii Barbara Ertter with Holly Forbes 1997-4-20 15550 Contra Costa North base of Mount Diablo, roadside on trail to Back Creek from Mitchell Canyon trailhead. Comment
  JEPS36211  Microseris douglasii subsp. douglasii W. L. Jepson 1923-4-22 9881 Contra Costa Mt. Diablo Comment
  UC195795  Microseris douglasii subsp. douglasii F. T. Bioletti 1892-1 Contra Costa Byron Comment
  UC691459  Microseris douglasii subsp. douglasii Mary L. Bowerman 1931-4-4 638 Contra Costa 2 mi by road from North Gate (west entrance); Mount Diablo Comment
  UC92107  Microseris douglasii subsp. douglasii M. K. Curran 1886-1 Contra Costa Antioch Comment
  UC691432  Microseris elegans Mary L. Bowerman 1933-3-25 1763 Contra Costa (Diablo Stock Farm) (Stone Valley) Canyon Mount Diablo Comment
  UC2028127  Microseris sylvatica Barbara Ertter with Richard K. Brummitt 1998-5-6 16081 Contra Costa Base of Mitchell Rock Trail on north base of Mount Diablo. Comment
  UCD118913  Microsteris gracilis Laurence S. Jones 1934-4-8 s.n. Contra Costa West slopes of Mt. Diablo. 609 Comment
  UC1051312  Mimulus aurantiacus N. Floy Bracelin 1941-6-22 1415 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  UC691614  Mimulus aurantiacus var. aurantiacus Mary L. Bowerman 1931-3-29 622 Contra Costa East Cave Point Ridge Mount Diablo Comment
  POM5025  Mimulus cardinalis M. Alice King 1896-07 257 Contra Costa San Pablo Comment
  UC2027951  Mimulus cardinalis Barbara Ertter with Joanne Kerbavaz and Mary Bowerman 2000-8-20 17515 Contra Costa South side Mount Diablo, Green Ranch Road at Meridian Springs Creek crossing. Comment
  JEPS10570  Mimulus douglasii Mary L. Bowerman 1935-4-26 2906 Contra Costa w Indian Ceremonial Spring; Mount Diablo 1005 Comment
  UC691649  Mimulus douglasii Mary L. Bowerman 1935-4-26 2906 Contra Costa w Indian Ceremonial Spring; Mount Diablo 1005 Comment
  CAS-BOT-BC151466  Mimulus latidens T. S. Brandegee 1888-5-1 s.n. Contra Costa Antioch Comment
  UC27004  Mimulus nasutus J. Burtt Davy 1893-5-13 214 Contra Costa Claremont Canyon to Fish Ranch fide fieldbook Comment
  CAS-BOT-BC388586  Minuartia douglasii Mary L. Bowerman 1935-4-22 2889 Contra Costa Mount Diablo. Ridge west of Pioneer Road (west of Old Stage Road): Crest of ridge Comment
  UC1795666  Minuartia douglasii Barbara Ertter, Mary Bowerman et al. 1995-5-7 14059 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, open north facing slope around rock outcrops (near creek crossing above woods) with seepage. Comment
  UC2027714  Minuartia douglasii Barbara Ertter with Stu Garrett 1997-3-29 15525 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  UC692304  Moehringia macrophylla Mary L. Bowerman 1931-5-16 861 Contra Costa on n side Mount Diablo summit; Mount Diablo summit on n side Comment
  CDA33814  Moehringia macrophylla D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .115 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  RSA135441  Monardella douglasii Volney Rattan 1886-6-14 s.n. Contra Costa Mt. Diablo Comment
  UC311527  Monardella douglasii A. D. E. Elmer July, 1903 4544 Contra Costa Mount Diablo Comment
  JEPS51850  Monardella douglasii Mary L. Bowerman 1933-6-21 2327 Contra Costa Donner Canyon: slightly south of Bilharan Lodge; Mount Diablo Comment
  UC76184  Monardella douglasii Milo S. Baker 1904-6-22 Contra Costa near Hurley's; Mt. Diablo Comment
  UCD125303  Monardella villosa P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  CAS-BOT-BC327806  Monolopia gracilens Alice Eastwood 1915-5-30 4518 Contra Costa Mt. Diablo Comment
  JEPS108222  Monolopia gracilens David Gowen 2005-5-6 278 Contra Costa Mt. Diablo State Park. Prospectors Gap Rd. ca 1/4 mile east of Prospectors Gap. Comment
  JEPS99497  Monolopia gracilens Mary Bowerman 1979-5-2 Contra Costa Mount Diablo, Old Mines Trail, Back Canyon. Comment
  CAS-BOT-BC349620  Monolopia major Sherwin Carlquist 1952-3-28 285 Contra Costa 7.2 miles west of Tracy Comment
Read comments
Feb 9 2019
  CHSC22932  Monolopia major Robert A. Schlising 1962-4-7 2143 Contra Costa Coast Ranges. S of Jct Empire Mine Road and Lone Tree Way; roadside. Comment
  CAS-BOT-BC349616  Monolopia major W. W. Carruth 1902-4-1 s.n. Contra Costa Redwood Canon [Canyon], E. Oakland Comment
  POM55549  Monolopia major C. F. Baker 1903-4-27 s.n. Contra Costa Byron. Comment
  SEINET11810308  Monolopia major L. S. Rose 1932-1 3280 Contra Costa Byron Comment
  CAS-BOT-BC445038  Montia linearis John Thomas Howell 1933-5-14 11226 Contra Costa St. Mary's College Comment
  UC1101358  Myosurus Herbert L. Mason 1952-3-13 14200 A Contra Costa 3.3 mi s 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
  UC407383  Myosurus minimus Ira L. Wiggins 1930-4-17 4580 Contra Costa 1/4 mi s Byron Comment
  CAS-BOT-BC7110  Myosurus minimus var. sessiliflorus M. K. Curran 1884-1-1 s.n. Contra Costa Antioch Comment
  UC1101330  Myosurus sessilis Herbert L. Mason 1952-4-14 14263 Contra Costa 3.5 mi s of Byron Comment
  UCD96287  Myosurus sessilis H. L. Mason 1952-4-14 14264 Contra Costa 3.5 miles south of Byron. Comment
  UCD96288  Myosurus sessilis H. L. Mason 1952-4-26 14269 Contra Costa 3.5 miles south of Byron. Comment
  POM166792  Myrica californica Jos. Burtt Davy 1898-3-24 4176 Contra Costa [Unspecified] Comment
  UCD18346  Myriophyllum sibiricum M. R. Bell 1950-10-9 s.n. Contra Costa near Concord, from stock pond on farm of E.J. Mangini. Comment
  CDA19208  Myriophyllum spicatum Mangini, Whitlock 2001-4-3 PDR 041588 Contra Costa at SW corner of Contra Loma Park, East Bay Regional park, Antioch. 0 Comment
  UCD170623  Myriophyllum spicatum 1996-10-1 s.n. Contra Costa Martinez, Contra Costa Landscaping. Comment
  UC1133134  Nassella cernua C. M. Belshaw 1936-5-9 2083 Contra Costa 1/2 mi n Nortonville (Plot 14); Mt. Diablo Comment
  UC60164  Nassella lepida J. Burtt Davy 1900-3-24 6519 Contra Costa Port Richmond Comment
  CAS-BOT-BC259905  Nassella lepida Mary L. Bowerman 1932-4-27 1387 Contra Costa Mount Diablo. Oyster Ridge, canyon W of Riggs Canyon 335 Comment
  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
  CDA32558  Nassella pulchra A. A. Beetle 1941-3-28 1718 Contra Costa Orinda 0 Comment
  CAS-BOT-BC60355  Nasturtium officinale D. E. Breedlove 1969-10-18 16722 Contra Costa Along Alhambra Valley Road near junction with Bear Creek Road, southeast of Pinole. Comment
  CAS-BOT-BC230253  Navarretia cotulifolia Mrs. Brandegee No date on label s.n. Contra Costa Antioch Comment
  UC30207  Navarretia cotulifolia W. H. Brewer 1862-5-19 1110 Contra Costa n of Kirker's Pass Comment
  JEPS70391  Navarretia mellita Mary L. Bowerman 1931-6-2 910 Contra Costa Gregory Ranch Road Mount Diablo Comment
  LA206696  Navarretia mellita John Thomas Howell; 1938-6-30 13938 Contra Costa head of Siesta Valley Comment
  UC133782  Navarretia mellita Katharine Brandegee Sep 1892 Contra Costa Oakland Hills, Redwood Peak Redwood Peak; Oakland Hills, Redwood Peak 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
  OBI70548  Nemophila heterophylla D. G. Kelch 2007-3-24 7 .095 Contra Costa Ozol; between Port Costa and Martinez, near old brick quarry 52 Comment
  SJSU6099  Nemophila heterophylla C. O. Dudley 1966-3-30 Contra Costa Briones Hills 10 mi SW of Martinez Comment
  UC24164  Nemophila heterophylla J. Burtt Davy 1895-4-7 907 Contra Costa Antioch Comment
  UC24180  Nemophila heterophylla Jos. Burtt Davy 1901-4-21 6922 Contra Costa Wildcat Canyon 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
  UC24234  Nemophila menziesii J. Burtt Davy 1895-4-7 875 Contra Costa Antioch Comment
  UC691708  Nemophila pedunculata Mary L. Bowerman 1932-3-27 1139 Contra Costa below Mitchell Rock (Mount Diablo); , below Mitchell Rock Comment
  UC691710  Nemophila pedunculata Mary L. Bowerman 1935-3-16 2731 Contra Costa Arroyo del Cerro Mount Diablo, Arroyo del Cerro (e fork, Mount Diablo) 228 Comment
  UC1795825  Nicotiana glauca Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14627 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
  RSA0027889  Nicotiana quadrivalvis Barbara Ertter, David Gowen 2010-11-17 20698 Contra Costa Mangini acquisition (Save Mount Diablo) between Lime Ridge and Mount Zion. 200 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
  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
  JEPS99980  Oemleria cerasiformis G. Smick 2003-2-20 GAS 46 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA128906  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
  RSA610758  Oemleria cerasiformis Joseph A. Ewan 1935-3-2 9081 Contra Costa wildcat canyon. Comment
  UC764022  Oemleria cerasiformis R. F. Hoover 1938-3-8 2823 Contra Costa e slope Grizzly Peak ridge; Grizzly Peak Comment
  CDA38496  Oenanthe sarmentosa D. G. Kelch 2003-8-13 3 .1 Contra Costa Carquinez Strait Region; Martinez Marsh. 0 Comment
  UC1618330  Oenothera curtiflora Barbara Ertter 1991-9-22 10827 Contra Costa sw El Cerrito; Point Isabel Regional Shoreline Comment
  CAS-BOT-BC171596  Oenothera deltoides subsp. howellii Peter Rubtzoff 1954-9-14 1756 Contra Costa Sand dunes along lower San Joaquin river, east of Antioch Comment
  CAS-BOT-BC171597  Oenothera deltoides subsp. howellii Walter Knight 1965-3-1 s.n. Contra Costa Antioch dunes. Comment
  JEPS12789  Oenothera deltoides subsp. howellii Rimo Bacigalupi with G. T. Robbins 1955-5-4 4979 Contra Costa river front just e Antioch; San Joaquin River 9 Comment
  POM355600  Oenothera deltoides subsp. howellii Peter H. Raven 1965-5-9 20181 Contra Costa Antioch dunes Comment
  RSA144914  Oenothera deltoides subsp. howellii Peter Rubtzoff 1954-9-14 1756 Contra Costa Sand dunes along lower San Joaquin River, east of Antioch. Comment
  RSA34666  Oenothera deltoides subsp. howellii P. A. Munz 1947-10-8 12201 Contra Costa Sand dunes east of Antioch 8 Comment
  RSA41319  Oenothera deltoides subsp. howellii Robert F. Hoover 1937-5-14 2112 Contra Costa Antioch sand-dunes Comment
  UC914280  Oenothera deltoides subsp. howellii Verne Grant and Alva Grant 1947-4-13 7926 Contra Costa sand hills by river e Antioch Comment
  RSA119436  Oenothera deltoides subsp. howellii William M. Klein 1958-6-9 433 Contra Costa Sandhills N of Antoch, along the San Joaquin River Channel. 2 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
  RSA0059169  Orobanche bulbosa F. T. Bioletti 1894-5-13 11693 Contra Costa Mt. Diablo. Comment
  UC2027756  Orobanche bulbosa Barbara Ertter, Holly Forbes 1997-4-20 15560 Contra Costa North base of Mount Diablo, dogleg in Eagle Peak Trail from Coulter Pine Trail to Twin Peaks, chamissal. Comment
  UC27878  Orobanche fasciculata W. H. Brewer 1862-5-10 1064 Contra Costa Low Hills near Kirker's Pass. Comment
  UC1607664  Orobanche uniflora Barbara Ertter with Michelle Seidl 1992-3-14 10918 Contra Costa Morgan Territory Regional Preserve e of Mount Diablo; Morgan Territory Regional Preserve Comment
  UC1076313  Orobanche uniflora subsp. occidentalis Herbert L. Mason 1931-4-5 5828 Contra Costa Road between Marsh Creek and Livermore. Comment
  UC27898  Orobanche uniflora subsp. occidentalis J. Burtt Davy 1895-4-13 1004 Contra Costa Lafayette. Comment
  JEPS121587  Orobanche vallicola Sam Young 2013-8-5 s. n. Contra Costa Briones Road, ~ 50 ft SW of intersection with Alhambra Valley Road, Martinez. Comment
  CAS-BOT-BC502955  Orobanche vallicola John Thomas Howell 1929-9-21 4391 Contra Costa Marsh Creek Road, 7 miles SE of Clayton Comment
  POM15646  Orthocarpus attenuatus H. P. Chandler 1901-3-21 843 Contra Costa Concord. Comment
  POM300994  Orthocarpus attenuatus Mary L. Bowerman 1933-5-11 2084 Contra Costa Inner Black Hills, west end (east of the meridian). Comment
  POM15657  Orthocarpus purpurascens C. F. Baker 1903-4-27 2794 Contra Costa Byron. Comment
  UC1555267  Osmorhiza berteroi R. C. Stebbins 1988-5-25 Contra Costa Memory and Packrat trails Tilden Park, Tilden Nature Area 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
  CDA28455  Oxalis carnosa G. D. Barbe 1976-3-25 2117 Contra Costa International Succulent Institute, 10 Corte Sombrita, between Moraga and Orinda. 0 Comment
  UC2029079  Oxalis corniculata Barbara Ertter 2000-7-16 17401 Contra Costa Lower Pine Creek in Diablo Foothills Regional Park. Comment
  SEINET9287601  Packera multilobata Unknown 1999-12-20 1219291 Contra Costa Along Wildcat Canyon Rd., 1.9 mi NW of intersection of Wildcat Canyon Rd and Dam Rd. vicinity of Orinda. Comment
  UC2012986  Panicum capillare Barbara Ertter with Lisa Schultheis 1996-9-2 15283 Contra Costa South side of Mount Diablo, South Gate Road not far inside park entrance near base of mountain. Comment
  UCD32992  Panicum dichotomiflorum Beecher Crampton 1965-9-29 7525 Contra Costa 5 miles S of Brentwood, Vasco Road and Camino Vaqueros. Comment
  JEPS103101  Papaver californicum Mary L. Bowerman 1978-5-14 Contra Costa E face of Eagle Peak, ravine toward Twin Peaks from Back Creek Mount Diablo Comment
  CHSC84570  Parapholis incurva John Dittes 2003-5-6 2003 -15 Contra Costa San Joaquin Valley; approximately 10.0 air-miles north of Livermore, 0.4 air-miles north of Vasco Road; Los Vaqueros Reservoir Watershed. 65 Comment
  JEPS101188  Parapholis incurva Dean W. Taylor 1990-4-10 10618 Contra Costa Byron Hot Springs Road, 1 mile S of Holey Road 24 Comment
  JEPS127671  Parapholis incurva Barbara Ertter with David Gowen and Michael Park 2017-5-2 22801 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  RSA722067  Parapholis incurva Barbara Ertter, Brad Olson 1994-5-7 12764 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge, edge of San Francisco Bay. Comment
  SBBG115829  Parapholis incurva K. Brandegee 1918-5-8 Contra Costa Byron Hot Springs Comment
  UCD88468  Parapholis incurva A. A. Beetle 1942-4-1 3268 Contra Costa Brooks Island. San Francisco Bay. Comment
  UCD88661  Parapholis incurva P. B. Kennedy 1928-5-12 s.n. Contra Costa Byron Hot Springs. Comment
  CDA4220  Paraserianthes lophantha D. G. Kelch 2006-12-2 6 .509 Contra Costa Carquinez Strait; Along drainage channel under Zampa Bridge, Crockett. Comment
  UC2028420  Paspalum distichum Barbara Ertter 2000-9-30 17538 Contra Costa West side Mount Diablo, pond on west side of Briones-Mount Diablo TRail south of Stonegate Trail junction Comment
  POM63644  Pectocarya penicillata C. F. Baker 1903-4-25 2804 Contra Costa Antioch. Comment
  JEPS68227  Pectocarya pusilla Mary L. Bowerman 1933-5-8 2019 Contra Costa near crest (n side, by rd to camp ground); Rock City Ridge Comment
  JEPS87902  Pectocarya pusilla Barbara Ertter, Lynne Hosley 1993-4-17 11508 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); Morgan Territory 609 Comment
  HSC101963  Pedicularis densiflora Nikolaus Gillen, Michelle Bihler 2014-3-20 15 Contra Costa Mount Diablo State Park. Eagle Peak Trail. 649 Comment
  JEPS10363  Pedicularis densiflora W. L. Jepson 1922-5-23 9665 a Contra Costa Mount Diablo Comment
  JEPS10410  Pedicularis densiflora W. L. Jepson 1899-4-19 21287 Contra Costa Las Trampas Ridge Comment
  UC480619  Pedicularis densiflora Carl Meyer 1928-2-22 290 Contra Costa Mount Diablo Comment
  UC54771  Pedicularis densiflora Joseph P. Tracy 1903-4-18 1801 Contra Costa hills near Berkeley (e slope beyond Bald Peak); San Francisco Bay Region 304 Comment
  RSA123948  Pedicularis densiflora E. F. Sprague 1957-4-11 1124 Contra Costa Mount Diablo. N slope of Live Oak Canyon. 610 Comment
  RSA124117  Pedicularis densiflora E. F. Sprague 1956-4-5 1096 Contra Costa Rocky Point, Mt. Diablo. 610 Comment
  UC692274  Pediomelum californicum Mary L. Bowerman 1930-6-7 282 Contra Costa Meridian Peak summit , Meridian Peak summit (Mount Diablo) Comment
  UC75670  Pediomelum californicum Milo S. Baker 1904-6-24 Contra Costa Summit of Mt. Diablo Comment
  UC1818872  Pelargonium inquinans Barbara Ertter, Brad Olson 1994-5-7 12757 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge, edge of San Francisco Bay. Openings, especially with seepage, near open brush. Comment
  CDA42756  Pellaea andromedifolia A. G. Murdock 2003-2-21 68 Contra Costa Carquinez Strait Region; Martinez; west border of Mt. Wanda property. Comment
  RSA686788  Pellaea andromedifolia Mark Morris 1929-03 14912 Contra Costa Mt. Diablo. Comment
  UC1874997  Pellaea andromedifolia A. G. Murdock 2004-2-13 1255 Contra Costa Martinez, McHarry Ranch Road, Franklin Canyon, at fire road entrance. Comment
  UC1795797  Pellaea mucronata var. mucronata Barbara Ertter, Mary L. Bowerman 1994-6-19 12856 a Contra Costa Mt. Diablo State Park east of Walnut Creek; scrub oak thicket north road, north of lower-summit parking lot, next to drainage on N. facing slope. Comment
  JEPS4477  Penstemon centranthifolius G. Thomas Robbins 1940-5-19 324 Contra Costa e Antioch; bordering San Joaquin River e of Antioch Comment
  NY583786  Penstemon centranthifolius C. F. Baker 1903-4-25 2938 Contra Costa Antioch Comment
  NY583831  Penstemon centranthifolius L. S. Rose 1933-4-17 33092 Contra Costa Antioch Comment
  NY583832  Penstemon centranthifolius L. S. Rose 1936-4-24 36158 Contra Costa 3 miles east of Antioch 15.2 Comment
  NY583859  Penstemon centranthifolius A. A. Heller 1908-4-16 8895 Contra Costa East of Antioch 22.9 Comment
  RSA412511  Penstemon centranthifolius H. de Forest 1930-4-6 s.n. Contra Costa Antioch. Banks of San Joaquin River. Comment
  UCD124087  Penstemon centranthifolius M. Wiesendanger 1925-5-1 1481 Contra Costa San Miguel. Comment
  UC1481542  Penstemon heterophyllus var. purdyi Neil Havlik 1980-6-26 941 Contra Costa e side of Siesta Valley in a small ravine e side of Siesta Valley Comment
  JEPS107104  Pentachaeta alsinoides Barbara Ertter, Lisa Schultheis 1995-4-27 14006 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; northwest side of open grassy ridge at end of Arbolado Dr. 121 Comment
  SBBG122848  Pentachaeta alsinoides B. Ertter, L. Schulteis 1995-4-27 14006 Contra Costa end of Arbolado Drive, Lime Ridge open space NW of Mt Diablo 121 Comment
  SEINET3873573  Pentagramma triangularis Clayton Newberry 1994-4-30 7252 Contra Costa Mount Diablo State Park, trail from Mitchell Cn. Prkng to Donner Cr.; 0 900 Comment
  UC2029184  Pentagramma triangularis Barbara Ertter 1990-5-19 8999 Contra Costa Lafayette Ridge of Briones Regional Park N of Lafayette. 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
  UC691890  Perideridia kelloggii Mary L. Bowerman 1938-6-30 3698 Contra Costa Black Oak Flat Mount Diablo (dry streamlet n of chaparral) 762 Comment
  UC691809  Perideridia oregana Mary L. Bowerman 1936-8-8 3525 Contra Costa Emmons Canyon Mount Diablo (w fork) Comment
  UCD161764  Persicaria James A. Neilson Jr. 1972-10-22 3505 Contra Costa Walnut Creek drainage at State Highway 4. (Exact location unknown. Coordinates and elevation estimated by label maker.) 1 Comment
  CAS-BOT-BC413780  Persicaria lapathifolia Walter Knight 1978-8-27 3166 Contra Costa Contra Loma Regional Park 30 Comment
  UCD99472  Persicaria lapathifolia Morris Halperin 1930-5-20 s.n. Contra Costa Near Antioch. Comment
  CAS-BOT-BC419325  Persicaria punctata Walter Knight; Joanne Dean 1978-8-14 3179 Contra Costa Browns Island Comment
  JEPS111781  Petrorhagia dubia Christopher Thayer 1995-6-5 Contra Costa West of Pinole Peak 274 Comment
  RSA428314  Phacelia Alice Eastwood 1931-5-30 18617 Contra Costa Oak Spring Comment
  UC1069282  Phacelia breweri C. M. Belshaw 1936-5-8 2063 Contra Costa Plot 5 Mount Diablo Quadrangle, Mt. Diablo (se slope of mt.) Comment
  UC1795740  Phacelia breweri Barbara Ertter, Tom Delendick 1996-5-2 14611 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
  UC24300  Phacelia breweri Edw. L. Greene 1892-6-20 Contra Costa Mt. Diablo Comment
  UC691689  Phacelia breweri Mary L. Bowerman 1935-4-26 2898 Contra Costa w Indian Ceremonial Spring; Mount Diablo 1021 Comment
  UCD102378  Phacelia breweri Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 1070 Comment
  POM118167  Phacelia breweri H. M. Hall, F. M. Essig 1916-5-31 10140 Contra Costa Mount Diablo, south of the summit. 1130 Comment
  JEPS25156  Phacelia californica G. Thomas Robbins with John Weiler 1959-5-23 4027 Contra Costa flats on w side San Francisco Bay, Richmond, Brooks Island Comment
  POM298633  Phacelia californica Lincoln Constance 1940-3-16 2524 Contra Costa Margin of San Francisco Bay, Point Richmond. 15 Comment
  UC2022567  Phacelia ciliata Lewis S. Rose 1932-3-15 3281 Contra Costa Byron Comment
  JEPS18382  Phacelia ciliata var. ciliata Rimo Bacigalupi with F. Chisaki 1957-3-27 5762 Contra Costa at jnct. of Lone Tree Way and Hillcrest Ave. (road) (about 1/2 mi w of Lone Tree School, 3 1/2 mi se of Antioch) 39 Comment
  UC767564  Phacelia ciliata var. ciliata R. F. Hoover 1938-3-25 2897 Contra Costa Lone Tree Valley Comment
  UC1607636  Phacelia distans Barbara Ertter 1991-5-5 9786 Contra Costa Black Diamond Mines Regional Preserve S of Pittsburg, base of steep cut on N side of Black Diamond Trail ca 1/4 mi E of pond sandstone substrate 426 Comment
  JEPS2353  Phacelia divaricata W. L. Jepson 1891-6-9 21021 Contra Costa near Berkeley (e side of hills); Oakland Hills, Fish Ranch Comment
  UC1228354  Phacelia imbricata subsp. imbricata L. R. Heckard 1956-7-17 805 Contra Costa Hampton Rd about 1 mi ne junction with Bear Creek road (n of Lafayette); Briones Hills 213 Comment
  UC691693  Phacelia imbricata subsp. imbricata Mary L. Bowerman 1930-6-5 252 Contra Costa West rd 5.8 mi from entrance; Mount Diablo 457 Comment
  UC901821  Phacelia imbricata subsp. imbricata L. Constance and C. Ritchie Bell 1950-5-18 3336 Contra Costa n peak Mount Diablo 1066 Comment
  LA205630  Phacelia perityloides H. M. Hall; F. M. Essig 1916-5-31 10135 Contra Costa Mt. Diablo 347 Comment
Read comments
Mar 29 2015
  JEPS1103  Phacelia phacelioides Mary L. Bowerman 1935-5-8 2974 Contra Costa Mount Diablo, Muir Area Mount Diablo; , Muir Area 1005 Comment
  UC691330  Phacelia phacelioides Mary L. Bowerman 1933-5-2 1950 Contra Costa below Pioneer Camp; Mount Diablo 762 Comment
  UC2028313  Phacelia phacelioides Barbara Ertter, Susan D'Alcamo 1998-6-12 16163 Contra Costa North Peak Trail from Devil's Elbow on SE side of Mount Diablo summit. Comment
  UC691717  Phacelia rattanii Mary L. Bowerman 1933-6-21 2331 a Contra Costa Donner Canyon Mount Diablo (by stream) Comment
  CDA31462  Phacelia tanacetifolia D. G. Kelch 2006-5-27 6 .219 Contra Costa Pinole Valley Park, S of Pinole Valley Road near crest of El Sobrante Ridge. Comment
  CDA40455  Phacelia tanacetifolia D. G. Kelch 2004-4-3 4 .056 Contra Costa Carquinez Strait Region; Crockett-Tormey Headlands, west of the I-80 and Cummings Skyway junction. Comment
  CHSC21625  Phacelia tanacetifolia Willis Ball 1975-3-26 513 Contra Costa Contra Loma Regional Park. In area #3. Beside trail immediately 25 yds sw of dam. 33 Comment
  UC24487  Phacelia tanacetifolia J. Burtt Davy 1895-4-7 952 Contra Costa Antioch Comment
Read comments
Jul 7 2013
  UC35529  Phacelia tanacetifolia Chesnut and Drew 1889-4-17 Contra Costa Summerville Comment
  POM300967  Phacelia tanacetifolia Mary L. Bowerman 1936-4-23 3404 Contra Costa Deer Ridge (Mitchell-Pine divide) west of Deer Flat trail, just west of the section line. 838 Comment
  RSA29642  Phacelia tanacetifolia Joseph A. Ewan 1935-3-6 9128 Contra Costa Donovan Road, Kirker Pass. Comment
  JEPS70601  Phalaris minor W. L. Jepson 1918-6-5 7595 Contra Costa Donner Canyon Mt. Diablo (Mt. Diablo); vicinity of San Francisco Bay, Mt. Diablo 228 Comment
  UC1132436  Phalaris minor C. M. Belshaw 1936-5-11 2099 Contra Costa 2 1/2 mi ese Danville (Plot 19); Mt. Diablo Quadrangle Comment
  UC820506  Phalaris minor John Thomas Howell 1933-5-14 11234 Contra Costa St. Mary's College Comment
  CAS-BOT-BC265960  Phalaris minor Mary L. Bowerman 1933-4-15 1849 Contra Costa Canyon south of Arrroyo del Cerro, Mount Diablo Comment
  UC1818923  Phalaris paradoxa Barbara Ertter, Mary Bowerman 1995-6-11 14251 Contra Costa Shell Ridge Recreation Area southeast of Walnut Creek, at west base Mt. Diablo.; annual grassland near Indian Valley School entrance, clay soil (planted Clarkia also present). 91 Comment
  UCD146727  Phalaris paradoxa G. F. Hrusa; D. Crowe 1998-5-8 14401 Contra Costa Sacramento-San Joaquin River Delta. East end of Dow Chemical property. 15 Comment
  SEINET5566389  Phalaris paradoxa E. A. Bernays 1985-1 s.n. Contra Costa Russell Reserve. Comment
  SEINET8719258 Image available Phalaris paradoxa Laura Zeller 1965-1 85 Contra Costa Across from the University of California Botanical Garden with Lolium 76 Comment
  UC52449  Phlox gracilis H. M. Hall 1901-3-22 1685 Contra Costa Port Costa San Francisco Bay Region Comment
  UC1078913  Phoradendron macrophyllum Job Kuijt 1958-1-12 1443 Contra Costa near Walnut Creek (Saranap); Saranap Comment
  UC692040  Phoradendron macrophyllum Mary L. Bowerman 1931-2-22 520 Contra Costa head of e. fork Sycamore Canyon; Mt. Diablo, Sycamore Canyon Comment
  UC608463  Phoradendron villosum Beryl O. Schreiber 1934-2-22 944 Contra Costa Mt. Diablo Rd. 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
  POM181424  Phragmites australis I. L. Wiggins 1930-4-18 4588 Contra Costa Jersey Island Comment
  CAS-BOT-BC260885  Phragmites australis Doreen Smith 2003-10-25 s.n. Contra Costa Martinez shoreline Comment
  CAS-BOT-BC260890  Phragmites australis A. D. E. Elmer 1903-7-1 4541 Contra Costa Martinez Comment
  UC2028238  Phyla nodiflora var. nodiflora Barbara Ertter, Tony Morosco 1998-9-18 16429 Contra Costa Lime Ridge Open Space northwest of Mount Diablo. Comment
  JEPS55997  Pickeringia montana L. R. Heckard and R. Bacigalupi 1968-6-27 Contra Costa n.e. Deer Flat (Bald Ridge, Mt. Diablo); Mt. Diablo, Bald Ridge 670 Comment
  JEPS48223  Pinus attenuata H. M. Wheeler 1944-1-16 Contra Costa Oakland Hills Moraga Ridge; , Moraga Ridge Comment
  UC143  Pinus attenuata Jos. Burtt Davy 1897-1-1 Contra Costa Moraga Comment
  SEINET3871797  Pinus attenuata Judy Kaufman 1963-2-15 6 Contra Costa On top slopes of Flicker Ridge.; 0 107 Comment
  CAS-BOT-BC78544  Pinus coulteri Elizabeth McClintock 1967-10-22 4 Contra Costa Nortonville area Comment
  JEPS46806  Pinus coulteri T. H. Goodspeed 1909-11-1 Contra Costa Mt. Diablo Comment
  POM287316  Pinus coulteri Lyman Benson 1935-3-16 6280 Contra Costa Mitchell Canyon near Clayton; Mt. Range: Mt. Diablo; Watershed: Walnut Creek. 244 Comment
  RSA32648  Pinus coulteri C. B. Wolf, Allen L. Chickering, H. L. Mason 1943-2-28 11442 Contra Costa 1 mile SW of the old coal mining settlement of Nortonville at the Northern base of Mt. Diablo hills. 305 Comment
  UC40358  Pinus coulteri J. G. Lemmon Contra Costa Mitchell Canyon Mt. Diablo Comment
  UC2028031  Pinus halepensis Barbara Ertter 1997-9-7 15800 Contra Costa North side Mount Diablo, Falls Trail in Donner Canyon. Comment
  UC1051358  Pinus muricata N. Floy Bracelin 1941-10-19 1713 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  CDA33592  Pinus radiata D. G. Kelch 2010-11-28 10 .448 Contra Costa El Sobrante. Hill above the junction of San Pablo Dam Rd and El Portal Dr (Quail Hill). Comment
  UC2028359  Piperia michaelii Barbara Ertter with Tony Morosco 1998-7-11 16367 Contra Costa North base of Mount Diablo, Coulter Pine Trail just east of Mitchell Rock Trail, N-facing slope Comment
  UC2028984  Piperia michaelii Barbara Ertter 2000-5-14 17011 Contra Costa Donner Canyon on north side of Mount Diablo, SW end of Falls Trail between Middle Trail and Donner Creek crossing. Comment
  CAS-BOT-BC158327  Piperia unalascensis Alice Eastwood 1915-5-30 4456 Contra Costa Field redacted by CAS, contact the data manager for more information Comment
  CDA34979  Pistacia atlantica Barbara Ertter, Dan Norris 2001-4-8 17603 Contra Costa Lime Ridge Open Space, main pit of west quarry area north of the adjacent golf course. Comment
  UC2032806 Image available Pittosporum crassifolium Doran, Andrew Scott 2012-3-20 676 Contra Costa Brooks island loading dock, North side of island. Comment
  JEPS68955  Plagiobothrys acanthocarpus Edward Lee 1935-3-10 1287 Contra Costa Kirker Pass, Donovan Road, w watershed of Kirker Creek Kirker Pass; , Donovan Road Comment
  UC189202  Plagiobothrys acanthocarpus Edw. L. Greene 1889-3-23 Contra Costa Byron Comment
  UC691338  Plagiobothrys acanthocarpus Mary L. Bowerman 1933-3-25 1761 Contra Costa Diablo Stock Farm, Emmons Canyon, w fork Stone Valley Canyon Mount Diablo, Stone Valley Canyon, Emmons Canyon Comment
  UC1950231  Plagiobothrys acanthocarpus Barbara Ertter 1992-3-8 10911 Contra Costa Contra Loma Regional Park; flat NE of bend in Frederickson Lane Comment
  UC882304  Plagiobothrys bracteatus Joseph Andorfer Ewan 1936-5-24 9698 Contra Costa w slope Bald Peak; San Pablo Ridge Comment
  UC518020  Plagiobothrys canescens Lewis S. Rose 1933-4-17 33098 Contra Costa Antioch Comment
  UC78032  Plagiobothrys canescens T. S. Brandegee May 1890 Contra Costa Antioch Comment
  UC78037  Plagiobothrys canescens T. S. Brandegee May 1890 Contra Costa Antioch Comment
  UC79334  Plagiobothrys canescens Katharine Brandegee May 1888 Contra Costa near Antioch Comment
  UC1069046  Plagiobothrys nothofulvus R. C. Wilson 1935-3-29 161 Contra Costa 1/2 mi w Deer Flat; Mt. Diablo Quadrangle Comment
  UC180105  Plagiobothrys nothofulvus Harley P. Chandler 1901-4-5 962 Contra Costa Mount Diablo between Pine Canyon and summit; Mount Diablo Comment
  UC78202  Plagiobothrys stipitatus Mrs. K. Brandegee May 1892 Contra Costa Brentwood Comment
  JEPS102297  Plagiobothrys stipitatus Jeff Greenhouse and Mary Ann Showers 2002-5-29 Contra Costa Dublin area, slated for development Comment
Read comments
Nov 10 2013
  RSA6495  Plagiobothrys stipitatus D. D. Keck 1933-4-2 1995 Contra Costa Vasco road, eastern Contra Costa County, N of Vaso School. Comment
  RSA666369  Plagiobothrys stipitatus Barbara Ertter, J. D. Jokerst, D. Magney 1989-4-5 8120 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  SEINET1906278  Plagiobothrys stipitatus var. micranthus Barbara Ertter, Jim Jokerst and Dave Magney 1989-1 8126 Contra Costa Alkali sink W and adjacent to Clifton Court Forebay, ca 15 air miles SW of Stockton. 0 Comment
  UC407385  Plagiobothrys stipitatus var. micranthus Ira L. Wiggins 1930-4-17 4582 Contra Costa 0.25 mi s Byron Comment
  UC79381  Plagiobothrys stipitatus var. micranthus Katharine Brandegee Apr 1889 Contra Costa Byron Comment
  SD4240  Plagiobothrys tenellus T. S. Brandegee May 1888 Contra Costa Antioch Comment
  UC79336  Plagiobothrys tenellus Katharine Brandegee April 1890 Contra Costa Antioch Comment
  JEPS116858  Plagiobothrys tenellus David Gowen 2007-4-13 672 Contra Costa On dirt road junction (Ridge Trail) between Castle Rock Recreation Area and Borges Ranch. Comment
  CDA40663  Plagiobothrys trachycarpus A. G. Murdock 2004-3-19 230 /231 Contra Costa Carquinez Strait; Hercules - Carbon. Comment
  UC767584  Plagiobothrys trachycarpus R. F. Hoover 1941-4-12 4840 Contra Costa 1 mi. n. Lone Tree Valley Comment
  JEPS116943  Plagiobothrys trachycarpus David Gowen 2008-4-16 863 Contra Costa Just south of parking area for Black Diamond Mines Regional Preserve on Frederickson Road. Comment
  UC1736692  Plantago bigelovii Dean W. Taylor 1971-4-1 980 Contra Costa junction of Byron Road and Holley Road; vernal pool 7 Comment
  JEPS7105  Plantago elongata M. K. Curran May 1886 Contra Costa near Antioch Comment
  UC1314970  Plantago elongata R. F. Hoover 1967-4-28 10516 a Contra Costa Byron Hot Springs Comment
  POM61282  Plantago elongata subsp. pentasperma C. F. Baker 1903-4-27 2866 Contra Costa Byron. Comment
  POM61262  Plantago erecta C. F. Baker 1903-4-25 2803 Contra Costa Antioch. Comment
  JEPS22024  Plantago lanceolata G. Thomas Robbins with S. Galen Smith 1958-6-2 3852 Contra Costa just e Hercules city boundary (Franklin Canyon Road (State Highway 4)); Refugio Valley 18 Comment
  JEPS86060  Plantago lanceolata William T. Hirano 1958-4-28 Contra Costa near Inspiration Point (Wildcat Creek Road, San Pablo Ridge e of Berkeley); San Pablo Ridge 304 Comment
  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
  JEPS112003  Platanus racemosa D. G. Kelch 2004-4-25 04 .106 Contra Costa Arroyo del Hambre Along Alhambra Creek in Martinez 74 Comment
  UC101597  Platystemon californicus Katharine Brandegee 1907-5-5 g Contra Costa between Antioch and Marsh Creek; between Antioch and Marsh Creek Comment
  UC692192  Platystemon californicus Mary L. Bowerman 1935-4-17 2828 Contra Costa 2 mi from entrance Mount Diablo North Rd; Mount Diablo 237 Comment
  UC101590  Platystemon californicus Katharine Brandegee 1907-5-5 i Contra Costa between Antioch and Marsh Creek (Judsonville) (300 yds along a sandy road back of oldest Coal Mine); between Antioch and Marsh Creek (Judsonville) Comment
  POM300583  Platystemon californicus var. californicus Mary L. Bowerman 1933-4-15 1868 Contra Costa Canyon south of Arroyo del Cerro; Rocky knoll 250 feet below spring. Comment
  CHSC24920  Plectritis ciliosa M. A. Callahan 1976-4-14 13 Contra Costa On west slope ca. 135 m. e of house at 1976 Mohawk Dr. Pleasant Hill. 140 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
  UC691524  Plectritis macrocera Mary L. Bowerman 1931-4-25 784 Contra Costa summit of Mount Diablo Mount Diablo Comment
  UC416755  Plectritis macrocera Harley P. Chandler 1901-3-22 883 Contra Costa near Fish Ranch 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
  CAS-BOT-BC260943  Pleuropogon californicus var. californicus W. H. Brewer 1862-5-1 1043 Contra Costa Walnut Creek Comment
  CAS-BOT-BC260948  Pleuropogon californicus var. californicus Peter H. Raven; G. Thomas Robbins 1956-4-28 9042 Contra Costa Just east of junction to Martinez along State Highway 4 Comment
  POM194540  Pleuropogon californicus var. californicus Y. Mexia 1929-4-21 2388 Contra Costa Junction of Franklin Canyon. Comment
  UCD90186  Pleuropogon californicus var. californicus R. Tofsrud 1946-4-1 s.n. Contra Costa Concord airfield. Comment
  CAS-BOT-BC356112  Pluchea odorata Walter Knight; J. Dean 1978-8-14 3137 Contra Costa Browns Island Comment
  CDA8486  Pluchea odorata D. G. Kelch, A. G. Murdock 2004-9-2 4 .334 Contra Costa Carquinez Strait Region; Pacheco Marsh. Marsh east of Martinez and I-680 and east of lone tree Marsh. Comment
  CDA8488  Pluchea odorata D. G. Kelch, A. G. Murdock 2003-8-13 3 .096 Contra Costa Carquinez Strait Region; Martinez Marsh. Comment
  UC1024731  Poa annua Leo Whitney 1935-4-21 3059 Contra Costa Corral Hollow Comment
  UC691191  Poa annua Mary L. Bowerman 1931-4-4 666 Contra Costa Pond w of Turtle Rock; Mt. Diablo Comment
  UC691192  Poa annua Mary L. Bowerman 1933-3-25 1764 Contra Costa off Stone Valley Emmons Canyon; Mt. Diablo Comment
  CAS-BOT-BC244357  Poa annua Peter H. Raven; H. L. Mason; R. Ornduff; et al. 1957-4-4 10579 Contra Costa 3 miles S of Byron Comment
  UC1818939  Poa bulbosa Barbara Ertter, Chris Thayer 1995-4-25 13986 Contra Costa Southeast side of Mt. Diablo northeast of Danville; shade of oak forest on Sycamore Creek near junction of path from Knobcone Point Rd. 396 Comment
  CAS-BOT-BC246644  Poa howellii John Thomas Howell 1933-5-14 11256 Contra Costa Hills east of St. Mary's College Comment
  RSA484205  Poa secunda Mary L. Bowerman 1931-4-18 715 Contra Costa Sycamore Canyon 335 Comment
  SEINET11695803  Poa secunda Unknown 1956-5-14 3387 Contra Costa 6.7 mi SW of city of Antioch, between old coal mining towns of Somersville & Nortonville Comment
  CAS-BOT-BC236386  Poa secunda subsp. secunda Mary L. Bowerman 1933-4-15 1869 Contra Costa Mount Diablo. Canyon S of Arroyo del Cerro: Rocky knoll 250 feet below spring Comment
  CAS-BOT-BC236392  Poa secunda subsp. secunda L. R. Abrams 1921-5-25 8031 Contra Costa Mount Diablo, summit Comment
  UC1037102  Poa secunda subsp. secunda Leo Whitney 1935-4-21 3058 Contra Costa 1 mi nw Corral Hollow Comment
  UC188812  Poa secunda subsp. secunda J. Burtt Davy 1900-3-24 6540 Contra Costa Pt. Richmond Comment
  UC790973  Poa secunda subsp. secunda A. A. Beetle 1941-3-23 1713 Contra Costa 1 mi e St Mary's College 182 Comment
  UCD36915  Poa secunda subsp. secunda Beecher Crampton 1956-5-14 3387 Contra Costa 6.7 miles SW of Antioch, along ridge between old coal mining towns of Somersville and Nortonville. Comment
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Jul 1 2011
  UCD90795  Poa secunda subsp. secunda Beecher Crampton 1956-5-14 3387 Contra Costa 6.7 miles SW of Antioch, between old coal mining towns of Somersville and Nortonville. Comment
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Jul 1 2011
  CAS-BOT-BC236387  Poa secunda subsp. secunda Mary L. Bowerman 1935-4-19 2859 Contra Costa Mount Diablo. Near Turtle Rock, hillside on opposite side of the road 457 Comment
  SEINET883323 Image available Poaceae F. W. Gould 1941-1 1304 Contra Costa near San Francisco Bay at Albany. Comment
  JEPS111505  Pogogyne serpylloides D. G. Kelch 2005-5-13 05 .267 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Area along Vista Road ~ 2.5 kiloms West of Martinez 45 Comment
  JEPS62482  Pogogyne zizyphoroides Chestnut and Drew 1889-4-18 Contra Costa Antioch Comment
  UC692129  Polygonum amphibium Mary L. Bowerman 1935-7-22 3182 Contra Costa Chase Pond Mount Diablo (in water 4 feet from shore) 548 Comment
  UC1784185  Polygonum amphibium var. emersum Ethel Crum 1930-9-29 863 Contra Costa Marsh Creek Road to Holt Comment
  UC692068  Polygonum amphibium var. emersum Mary L. Bowerman 1931-6-16 928 Contra Costa Chase Pond Mount Diablo (by Old Government Trail) Comment
  RSA721737  Polygonum amphibium var. emersum Barbara J. Ertter, K. Ertter 1995-7-11 14482 Contra Costa W side of Mt. Diablo SW of Walnut Creek, dense growth at lower end of Pine Pond. 183 Comment
  CAS-BOT-BC413969  Polygonum aviculare subsp. aviculare Walter Knight; Wayne Roderick; Steve Edwards; Bob Doyle 1978-9-19 3256 Contra Costa Brown's Island, South Landing Comment
  CAS-BOT-BC413970  Polygonum aviculare subsp. aviculare R. E. Frenkel 1964-4-8 421 Contra Costa By the south side of Marsh Creek Road near Marsh Creek 33 Comment
  JEPS112029  Polygonum aviculare subsp. buxiforme Dean G. Kelch and Andrew G. Murdock 2005-3-13 DGK 05 .044 Contra Costa Crockett - weedy area under Zampa Bridge. Comment
  UC1784908  Polygonum aviculare subsp. depressum Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15671 Contra Costa Martinez Comment
  CDA33739  Polygonum odoratum White 2010-12-14 s.n. Contra Costa Oakley. 40 Meek Lane. 0 Comment
  UC1618387  Polygonum punctatum Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10875 Contra Costa just w of Antioch Marina (Dow Wetlands Preserve); Dow Wetlands Preserve Comment
  CDA1502  Polygonum ramosissimum var. ramosissimum D. G. Kelch 1996-10-17 s.n. Contra Costa Carquinez Strait; Pt Edith Marsh Comment
  RSA309337  Polypodium californicum Edward Lee, C. Belshaw 1935-12-28 1706 Contra Costa Southwest-facing slope, Las Trampas Ridge, Las Trampas Peak 442 Comment
  JEPS100159  Polypodium calirhiza G. Smick 2003-6-6 GAS 217 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1478304  Polypodium calirhiza Alan R. Smith with Tom Lemieux 1981-11-19 826 Contra Costa n slope Mt. Diablo (creekside ravine along North Gate Rd., 3.6 mi w of (below) Park HQ (South Gate Rd. junction); Mt. Diablo State Park 640 Comment
  UC1614416  Polypodium calirhiza Charles M. Belshaw 1935-12-28 1427 Contra Costa on trail above ranch house Las Trampas Ridge Comment
  UC50640  Polypogon imberbis Jos. Burtt Davy 6662 Contra Costa Salt-marsh near Martinez Comment
  RSA484484  Polypogon monspeliensis A. A. Beetle 1941-6-24 s.n. Contra Costa Point Richmond on San Francisco Bay. 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
  UCD91254  Polypogon monspeliensis Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  CAS-BOT-BC232581  Polypogon monspeliensis Mary L. Bowerman 1932-8-27 1521 Contra Costa Mount Diablo. Spring S of Turtle Rock Comment
  RSA720803  Polypogon viridis Mary L. Bowerman 1975-9-14 s.n. Contra Costa Mount Diablo. Muddy rivuley coming from leak in pipe near Chase Pond. Comment
Read comments
Jun 30 2011
  CAS-BOT-BC237470  Polypogon viridis Mary L. Bowerman 1936-8-17 3527 Contra Costa Mount Diablo. Sulphur Spring in Pine Canyon 137 Comment
  RSA0029363  Polypogon viridis Barbara Ertter, Mary L. Bowerman, Lisa Schultheis 1996-7-5 14917 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  UCD91454  Polypogon viridis Beecher Crampton 1959-9-3 5452 Contra Costa Bear Creek, about 2 miles north of Orinda. 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
  JEPS100004  Populus fremontii A. Langston 2003-9-16 AL 91 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  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
  UC2027748  Populus fremontii subsp. fremontii Barbara Ertter 1996-11-24 15426 Contra Costa West side of Mount Diablo, Pine Pond along Stage Road in Pine Canyon. Comment
  CDA33072  Potamogeton crispus D. G. Kelch 2010-10-5 10 .427 Contra Costa The Delta.; Antioch shoreline. West of Fulton shipyard. Comment
  SD211523  Potamogeton diversifolius Barbara Ertter, Brad Olson 1991-9-28 10839 Contra Costa San Pablo Reservoir between Orinda and El Sobrante, in shallow water at South end of reservoir 91 Comment
  UC1950411  Potamogeton diversifolius Barbara Ertter with Brad Olson 1991-9-28 10839 Contra Costa San Pablo Reservoir between Orinda and El Sobrante, at S end of reservoir Comment
  UC72980  Potentilla anserina subsp. pacifica Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  JEPS46554  Proboscidea 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
  UC2027755  Prunus cerasifera Barbara Ertter, Mary Bowerman 1996-11-1 15407 Contra Costa North base of Mount Diablo, lower Donner Creek. Comment
  JEPS99978  Prunus dulcis G. Smick 2003-2-18 GAS 63 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2027733  Prunus dulcis Barbara Ertter 1997-2-16 15460 Contra Costa Shell Ridge Open Space on west flank of Mount Diablo, exposed sandstone on main ridgeline. Comment
  UC2028511  Pseudognaphalium beneolens Barbara Ertter 1996-11-24 15414 Contra Costa Southwest side of Mount Diablo, Wall Point Road across Pine Ridge ca 1/2 airmiles ENE of Macedo Ranch Comment
  JEPS99589  Pseudognaphalium luteoalbum Mary L. Bowerman 1975-9-14 Contra Costa Mount Diablo. Fire road to Frog Pond just W of Mt. Springs Creek bridge. 451 Comment
  UC1795642  Pseudognaphalium luteoalbum Barbara Ertter, Drew Hansen 1995-3-28 13937 Contra Costa Chevron oil refinery in northwest Richmond off of Castro St. edge of levees thru created bioremediation marsh south of Wildcat Creek. Comment
  HSC5690  Pseudognaphalium luteoalbum Greg Bos 1963-4-10 71 Contra Costa Richmond, El Cerrito Hills. E and, W slope 76 Comment
  UC1618173  Pseudognaphalium ramosissimum Barbara Ertter, CNPS 1990-8-19 9621 Contra Costa along Bear Creek Trail n Orinda (e side of s end of reservoir, on EBMUD land, near Briones Overlook); Briones Reservoir 213 Comment
  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
  UC1795691  Pseudognaphalium thermale Barbara Ertter, Kristin Ertter 1995-7-11 14469 Contra Costa Pine Creek on west side of Mt. Diablo southwest of Walnut Creek; Diablo Foothills Regional Park, on rock slope. Comment
  UC1051469  Psilocarphus brevissimus var. brevissimus Herbert L. Mason 1952-4-14 14266 Contra Costa 3.5 mi s Byron Comment
  JEPS25388  Psilocarphus oregonus Rimo Bacigalupi with G. T. Robbins and Francia Chisaki 1959-4-14 7001 Contra Costa 2.5 mi se Antioch (along Lone Tree Way, just e of Antioch Airport) 56 Comment
  JEPS40518  Psilocarphus tenellus W. L. Jepson 1922-5-11 9635 Contra Costa n Berkeley Hills; North Berkeley Hills Comment
  RSA126045  Ptelea baldwinii subsp. crenulata A. D. E. Elmer 1903-05 4327 Contra Costa Mount Diablo. Comment
  RSA15420  Ptelea baldwinii subsp. crenulata L. S. Rose 1936-4-24 36147 Contra Costa Marsh Creek. 6 miles E of Clayton. 61 Comment
  RSA603230  Ptelea baldwinii subsp. crenulata L. S. Rose 1936-4-24 36147 Contra Costa Marsh Creek. 6 miles E of Clayton. 61 Comment
  RSA77085  Ptelea baldwinii subsp. crenulata Alice Eastwood, John T. Howell 1936-4-19 2134 Contra Costa Nortonville. Comment
Read comments
Aug 27 2011
  CAS-BOT-BC148624  Ptelea crenulata Barrett Anderson 1987-4-30 3496 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD. 125 Comment
  CAS-BOT-BC148629  Ptelea crenulata Alice Eastwood 1897-5-31 s.n. Contra Costa Mount Diablo Comment
  CAS-BOT-BC148636  Ptelea crenulata W. W. Carruth 1903-5-10 s.n. Contra Costa Mitchell Canyon, Mt. Diablo Comment
  CAS-BOT-BC148637  Ptelea crenulata Lewis S. Rose 1936-4-24 36147 Contra Costa Marsh Creek, 6 mi. E of Clayton 60 Comment
  CAS-BOT-BC148643  Ptelea crenulata V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Val. Comment
  JEPS112113  Ptelea crenulata D. G. Kelch 2004-5-2 04 .172 Contra Costa Crockett - Edwards Canyon 112 Comment
  UC1561102  Ptelea crenulata Dean Wm. Taylor with Rexford E. Palmer 1987-4-22 8926 Contra Costa Brushy Creek drainage; South Coast Ranges, Brushy Creek, Byron Hot Springs Quad. (1 310 Comment
  UC1614255  Ptelea crenulata Charles M. Belshaw 1935-6-10 696 Contra Costa Morgan Territory Rd. Comment
  UC194966  Ptelea crenulata H. M. Hall 1916-8-17 10277 Contra Costa 6 mi s Antioch; Upper Horse Valley 213 Comment
  UC571100  Ptelea crenulata H. L. Mason 1928-4-1 4273 Contra Costa hills n Mount Diablo (canyon back of Pittsburg) Comment
  UC579884  Ptelea crenulata Annetta Carter 1935-6-1 868 Contra Costa ridge on w side of peak Mount Diablo 1036 Comment
  UCD102396  Ptelea crenulata Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Bald Ridge Trail. Bald Ridge. 860 Comment
  CAS-BOT-BC148620  Ptelea crenulata Ethel Wickes 1917-6-1 s.n. Contra Costa Unspecified Comment
  UC407044  Pteridium aquilinum var. pubescens Ira L. Wiggins 1930-4-18 4590 Contra Costa sides of levees Jersey Island Comment
  CAS-BOT-BC45658  Quercus agrifolia Walter Knight 1965-3-1 981 Contra Costa Antioch Dunes Comment
  JEPS111961  Quercus agrifolia D. G. Kelch 2004-3-12 04 .20 Contra Costa Pinole Valley Hillside and canyon above Wright Road. Off of Pinole Valley Road. Contra Costa County, 130 Comment
  UC1042561  Quercus agrifolia John Thomas Howell 1950-7-5 26638 Contra Costa Nortonville Comment
  UCD83548  Quercus agrifolia Alison McNally 2009-5-9 s. n. Contra Costa Antioch, southern shore of San Joaquin River, Antioch Dunes National Wildlife Refuge. 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
  UC2042966  Quercus berberidifolia Barbara Ertter, Brad Olson, Diane Lake, Seth Adams, et al. 1994-9-11 13092 Contra Costa Chaparral Springs addition to Mt. Diablo State Park, north side of Marsh Creek Road at high point southeast of Clayton. Comment
  UC691304  Quercus berberidifolia Mary L. Bowerman 1934-2-3 2479 Contra Costa head of e fork of Sycamore Canyon, knob w of knoll Mount Diablo, Sycamore Canyon Comment
  CDA31069  Quercus chrysolepis D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .232 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  UC691274  Quercus chrysolepis Mary L. Bowerman 1930-8-31 446 Contra Costa Dan Cook Canyon, upper end Mount Diablo Comment
  UCR247487  Quercus chrysolepis Dean Kelch 2011-5-4 11 .224 Contra Costa Central Coast, near Morgan Territory Regional Park, west of Morgan Territory Road 610 Comment
  UCSB23056  Quercus chrysolepis McMinn, Howard 1922-6-2 Contra Costa Near summit of Mt. Diablo Comment
  UC1135448  Quercus douglasii R. W. Lundh 1932-8-17 131 Contra Costa 1 mi e Round Valley; Mt. Diablo Quad. 518 Comment
  UCD56638  Quercus douglasii J. M. Tucker 1946-5-8 s.n. Contra Costa Mt. Diablo, along main road, above main gate. Comment
  RSA476581  Quercus douglasii H. de Forest 1930-4-13 s.n. Contra Costa Road through N end Diablo Range. 915 Comment
  CAS-BOT-BC86122  Quercus dumosa Mary L. Bowerman 1932-1-23 1078 Contra Costa Mount Diablo. Knoll W of knoll between Sycamore Ridge and 1920 point Comment
  UC5581  Quercus durata F. W. Bancroft 1894-7-10 Contra Costa half-way up Mt. Diablo Comment
  CDA37340  Quercus garryana D. G. Kelch 2010-10-31 10 .445 Contra Costa South Pinole Peak. Comment
  CDA39042  Quercus garryana D. G. Kelch 2011-6-5 11 .57 Contra Costa Carquinez Strait; South of Crockett, south of Cummings Skyway. Comment
  UC1748011  Quercus garryana E. Dean, M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 654 Contra Costa Fossil Ridge, just upslope of South Gate Rd., just W of Gibralter Rock, SE of Rock City Mount Diablo State Park 487 Comment
  UCD17419  Quercus garryana E. Dean; M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 655 Contra Costa California. Contra Costa County: Mount Diablo State park, Fossil Ridge, just upslope of South Gate Rd., just west of Gibraltar Rock, southeast of Rock City. 487 Comment
  UCD17435  Quercus garryana E. Dean; M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 657 Contra Costa California. Contra Costa County: Mount Diablo State park, Fossil Ridge, along fire road that begins at the parking lot southeast of Rock City and climbs onto Fossil Ridge in southeasterly direction, ca. 0.1 mile from Rock City, slightly downslope of road. 487 Comment
  UC2042780  Quercus kelloggii Barbara Ertter with Travis Columbus 1990-6-10 9115 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill, SE Alhambra Valley staging area Comment
  JEPS37352  Quercus lobata W. L. Jepson 1916-10-22 6852 Contra Costa Las Trampas Ridge Comment
  SEINET12034643  Quercus lobata L. S. Rose 1938-1 38306 Contra Costa Marsh Creek,6 mi E of Clayton 152 Comment
  UCD84948  Quercus palmeri Chuck Hughes 2010-3-29 220 Contra Costa About 0.4 mile south of Vasco Road. 326 Comment
  CDA29568  Quercus parvula var. shrevei D. G. Kelch, Suzanne Latham, Matt Beyers 2009-6-3 9 .332 Contra Costa East Bay.; El Sobrante Ridge at end of Silver Belt Dr. on Miocene chert outcrop. Comment
  SBBG115590  Quercus parvula var. shrevei E. Dean, B. Ertter, J. M. Tucker, K. Chaney 2000-9-13 650 Contra Costa City of El Sobrante, El Sobrante Ridge, upslope of the terminus of Heavenly Ridge Rd, jct of Heavenly Ridge Trail and Manzanita Trail 213 Comment
  CAS-BOT-BC104710  Quercus wislizeni Mary L. Bowerman 1930-7-7 287 Contra Costa Mount Diablo. Summit Comment
  JEPS104763  Quercus wislizeni John L. Morrison 1937-3-6 1973 Contra Costa S of Antioch Comment
  POM301008  Quercus wislizeni Mary L. Bowerman 1934-3-18 2480 Contra Costa Russelmann Park; end of road Comment
Read comments
Aug 11 2011
  UCD47497  Quercus wislizeni John M. Tucker 1946-3-4 1378 Contra Costa East side of Redwood Peak, Oakland hills, Contra Costa County, California. Comment
  UCD47498  Quercus wislizeni John M. Tucker 1946-4-4 1392 Contra Costa Ca. 100 yards northwest of intersection of Grizzly Peak Boulevard and road to Easport, Oakland hills, Contra Costa County, California. 365 Comment
  CAS-BOT-BC104714  Quercus wislizeni Peter Rubtzoff 1951-10-7 815 Contra Costa 1 to 2 mi SW of Moraga, near the road Comment
  JEPS84502  Rafinesquia californica Jack Stratford 1981-5-6 Contra Costa Skyline Trail between Huckleberry Trail and Pinehurst Road; Huckleberry Botanic Regional Preserve Comment
  UC311125  Ranunculus aquatilis A. D. E. Elmer May, 1903 4318 Contra Costa Mount Diablo Comment
  CAS-BOT-BC379225  Ranunculus aquatilis var. aquatilis Mary L. Bowerman; Walter Knight; Irja Knight 1968-6-4 2331 Contra Costa Mt. Diablo State Park, floating on Frog Pond and growing at water's edge in mud Comment
  RSA224309  Ranunculus aquatilis var. hispidulus Mary L. Bowerman, Walter Knight, I. Knight 1968-6-4 2331 Contra Costa floating on Frog Pond Mt. Diablo State Park Comment
  UC1126151  Ranunculus californicus R. C. Wilson 1935-3-27 148 Contra Costa Oyster Pt. Mt. Diablo Quadrangle Comment
  SEINET13717644  Ranunculus californicus Unknown 1948-2-12 1103 Contra Costa West facing slope along Bear Creek Canyon in Lawson Hill area. Comment
  UC9444  Ranunculus hebecarpus H. N. Bolander 1866-1 Contra Costa Monte Diablo Comment
  UC9445  Ranunculus hebecarpus Geol. Survey 1862-1 1049 Contra Costa Mt. Diablo; foothills Comment
  POM300585  Ranunculus muricatus Mary L. Bowerman 1938-5-25 3629 Contra Costa Arroyo Del Cerro by N road Comment
  SEINET11268259  Ranunculus occidentalis Barbara Ertter, Dan Norris 2001-4-15 17607 Contra Costa Alamo Trail.; 0 213 Comment
  UC2028580  Ranunculus occidentalis Barbara Ertter with Dan Norris 2001-4-15 17607 Contra Costa Diablo Foothills Regional Park. At east end of Alamo Trail. Comment
  RSA125860  Ranunculus occidentalis var. eisenii G. R. Campbell 1956-4-6 17 Contra Costa Between Round Top and summit of Mt. Diablo. 305 Comment
  UC9383  Ranunculus orthorhynchus var. bloomeri J. Burtt Davy 1897-4-17 Contra Costa Point Isabel 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
  CHSC116607  Raphanus raphanistrum Lowell Ahart; Josephine Guardino 2016-4-19 20772 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. 1.4 miles northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  UC2028212  Raphanus raphanistrum Barbara Ertter with Richard K. Brummitt 1998-5-13 16134 Contra Costa North Gate Road on west side of Mount Diablo, hairpin turn opposite Angel Kerley trailhead. Comment
  JEPS112066  Rhamnus californica subsp. californica D. G. Kelch 2003-3-21 03 .69 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 2 miles west of Martinez Contra Costa County CA. Grassy hill above cottonwood tree. Just south of end gate of Carquinez Scenic Drive 40 Comment
  CDA9186  Rhamnus crocea Christopher Thayer 1995-6-5 s.n. Contra Costa Carquinez Strait; W of Pinole Peak. Comment
  CAS-BOT-BC59894  Rhamnus ilicifolia A. D. E. Elmer 1903-5-1 4326 Contra Costa Mount Diablo. Comment
  UC18594  Rhamnus tomentella subsp. tomentella E. L. Greene 1892-1 Contra Costa Mount Diablo Comment
  UC420524  Rhamnus tomentella subsp. tomentella Milo S. Baker 1904-6-24 Contra Costa near Mt. Diablo summit; Mt. Diablo, Pine Creek Canyon Comment
  POM300719  Rhus trilobata var. pilosissima Mary L. Bowerman 1933-3-25 1776 Contra Costa Emmons Canyon, off Stone Valley Comment
  UC75430  Ribes Milo S. Baker 1904-6-24 Contra Costa near summit Mt. Diablo Comment
  UC69859  Ribes californicum H. M. Hall 1901-4-5 1758 Contra Costa Summit Mt. Diablo Region of San Francisco Bay Comment
  CAS-BOT-BC92920  Ribes californicum var. californicum John Thomas Howell 1931-2-21 5730 Contra Costa North side of Mount Diablo. Comment
  UC69254  Ribes malvaceum H. M. Hall 1901-4-5 1753 Contra Costa Mt. Diablo Region of San Francisco Bay 1005 Comment
  UC692236  Ribes menziesii Mary L. Bowerman 1931-4-19 739 Contra Costa Deer Flat, near spring by trail at upper end of flat Mount Diablo Comment
  UC692436  Ribes menziesii Mary L. Bowerman 1932-9-3 1541 Contra Costa Meridian Peak summit, by trail leading s from the house Mount Diablo Comment
  UC692559  Ribes menziesii Mary L. Bowerman 1931-4-25 780 Contra Costa summit Meridian Peak (n side); Mount Diablo Comment
  JEPS116868  Ribes menziesii David Gowen 2007-9-1 790 Contra Costa Huckleberry Regional Preserve. Along trail descending to canyon bottom near trail junction above creek. Comment
  CAS-BOT-BC209362  Ribes sanguineum var. glutinosum John Thomas Howell 1925-9-12 1438 Contra Costa San Leandro Canyon, Oakland Hills 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
  UC697154  Rigiopappus leptocladus Mary L. Bowerman 1935-4-22 2890 Contra Costa ridge w Pioneer Road (w of Old Stage Road); Mount Diablo 853 Comment
  UC1050828  Romneya coulteri N. Floy Bracelin 1941-6-1 1344 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC630419  Rosa californica Paule Guiguet and Annetta Carter 1939-8-13 1450 Contra Costa se Clayton; Mount Diablo drainage, Donner Creek 152 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-BC148206  Rosa spithamea Alice Eastwood 1923-5-4 11705 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC147206  Rubus parviflorus Mary L. Bowerman 1933-5-19 2140 Contra Costa Below Morgan Sulphur Spring 335 Comment
  CAS-BOT-BC147207  Rubus parviflorus Mary L. Bowerman 1933-5-19 2140 Contra Costa Below Morgan Sulphur Spring 335 Comment
  UC1948959  Rubus ursinus William J. Ferlatte, L. Maynard Moe 1970-4-27 1243 Contra Costa San Francisco Bay: Red Rock Island 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
  CAS-BOT-BC421736  Rumex conglomeratus Walter Knight 1979-6-15 3379 Contra Costa Botany Cove, Browns Island. Comment
  CAS-BOT-BC421737  Rumex conglomeratus Irja Knight; W. Knight 1977-5-22 s.n. Contra Costa Antioch Dunes. Comment
  CAS-BOT-BC421624  Rumex crispus W. Knight; I. Knight 1977-5-22 s.n. Contra Costa Antioch Dunes. Comment
  CHSC116601  Rumex dentatus Lowell Ahart; Jpsephine Guardino 2016-4-19 20783 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. 1.4 miles northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  UC2062666  Rumex maritimus Barbara Ertter with David Gowen 2006-10-1 18781 Contra Costa West side San Pablo Reservoir east of San Pablo Dam Road between Richmond and Orinda, south of marina. Comment
  JEPS112017  Rumex pulcher Dean G. Kelch and Andrew G. Murdock 2004-5-28 AGM 267 Contra Costa Refugio Valley. Comment
  JEPS100112  Rupertia physodes A. Langston 2003-6-12 AL 41 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1197438  Rupertia physodes Joseph P. Tracy 1934-4-30 13195 Contra Costa near Lafayette 152 Comment
  UC1594172  Rupertia physodes Jerry Powell 1991-6-21 1608 Contra Costa along creek well away from water Briones Regional Park Comment
  UC16326  Rupertia physodes unknown 1032 Contra Costa Mount Diablo Comment
  UC55203  Ruppia cirrhosa Geo. Hansen Sep 1899 Contra Costa Byron Springs Comment
  JEPS127040  Sagina apetala Lowell Ahart, Josephine Guardino 2016-4-19 20774 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  UC2029092  Salicornia depressa Barbara Ertter 1990-9-30 9656 Contra Costa Point Pinole Regional Shoreline on SW corner of park; edge of San Pablo Bay. Comment
  UC204976  Salicornia subterminalis Katharine Brandegee Contra Costa Byron Hot Springs Comment
  SEINET1910270  Salicornia virginica Barbara Ertter, Elizabeth Neese 1988-1 7974 Contra Costa Salicornia marsh W of I-580 in El Cerrito, W side along Rydin Road N of Central Avenue. Comment
  CAS-BOT-BC129921  Salix bonplandiana Barrett Anderson 1987-4-29 3476 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD. 125 Comment
  CAS-BOT-BC129913  Salix bonplandiana J. Burtt Davy 1895-4-13 1005 Contra Costa Near Lafayette. Comment
  CAS-BOT-BC129918  Salix bonplandiana Mary L. Bowerman 1933-4-15 1854 Contra Costa Mount Diablo - canyon south of Arroyo del Cerro Comment
  POM167728  Salix exigua H. P. Chandler 1901-3-22 860 Contra Costa Pacheco. Comment
  POM181455  Salix exigua I. L. Wiggins 1930-4-18 4587 Contra Costa Jersey Island. Comment
  UC691922  Salix exigua var. hindsiana Mary L. Bowerman 1936-5-6 3412 a Contra Costa Mitchell Canyon Mt. Diablo, Mitchell Canyon 152 Comment
  POM181448  Salix gooddingii I. L. Wiggins 1930-4-18 4591 Contra Costa Jersey Island. Comment
  POM181440  Salix laevigata I. L. Wiggins 1930-4-18 4601 Contra Costa Jersey Island. Comment
  SJSU6174  Salix laevigata C. O. Dudley 1966-4-4 74 Contra Costa Reliez Valley, Briones Hills, N of Lafayette Comment
  UC692051  Salix laevigata Mary L. Bowerman 1931-3-1 529 Contra Costa near n gate Mt. Diablo Comment
  UC692052  Salix laevigata Mary L. Bowerman 1931-3-1 530 Contra Costa near w. entrance = N. Gate Mt. Diablo Comment
  POM300724  Salix laevigata Mary L. Bowerman 1931-3-14 566 Contra Costa Riggs Canyon, E side. Mount Diablo. Comment
  UC494334  Salix laevigata Annetta M. Carter 1933-3-12 266 Contra Costa ca. 1.5 mi e Contra Costa Co. Preventorium (Marsh Creek Rd.) Comment
  OBI70551  Salix lasiolepis D. G. Kelch, D. A. Weinstein 2008-4-25 8 .087 Contra Costa Alvarado Park (W end of Wildcat Canyon Park) 122 Comment
  UC2032847  Salix lasiolepis Doran, Andrew Scott 2012-3-20 718 Contra Costa Southern part of Brooks Island, old quarry near gravel conveyer belt and grind house. Comment
  UC692056  Salix lasiolepis Mary L. Bowerman 1931-2-22 519 Contra Costa Sycamore Canyon; mouth Comment
  UC692060  Salix lasiolepis Mary L. Bowerman 1935-6-21 3142 Contra Costa Arroyo del Cerro Mount Diablo (e fork) 259 Comment
  UC692067  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-BC129560  Salix lasiolepis var. lasiolepis Alice Eastwood 1914-3-6 s.n. Contra Costa Redwood Canyon Comment
  CAS-BOT-BC129600  Salix lasiolepis var. lasiolepis Mary L. Bowerman 1931-4-11 701 Contra Costa Mouth of Pine Canyon, on bank of dry stream bed - Mount Diablo Comment
  CAS-BOT-BC180753  Salsola tragus Walter Knight; Joanne Dean 1978-8-14 3114 Contra Costa Browns Island Comment
  JEPS79010  Salsola tragus Edward Lee with Annetta Carter 1935-8-17 1619 Contra Costa just e. Antioch Comment
  JEPS62550  Salvia carduacea Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  UC25708  Salvia columbariae W. L. Jepson May 23 1894-May 24 1894 Contra Costa Mt. Diablo; Mount Diablo Region Comment
  UC691722  Salvia columbariae Mary L. Bowerman 1933-5-2 1942 Contra Costa below Pioneer Camp, Mount Diablo; Mount Diablo 762 Comment
  SEINET13947331 Image available Salvia columbariae Lewis S. Rose 1935-1 35168 Contra Costa Mt. Diablo Comment
  JEPS120273  Salvia leucophylla Barbara Ertter with David Gowen 2012-6-9 21026 Contra Costa southeast of junction of Big Springs Trail and Seaview Trail, southeastern Tilden Park in Berkeley Hills Comment
Read comments
Mar 22 2018
  POM71109  Salvia mellifera H. P. Chandler 1901-4-5 976 Contra Costa Mt. Diablo Comment
  UC635692  Salvia mellifera A. E. Borell 1928-3-18 28 Contra Costa w slope Mt. Diablo Comment
  UCD32382  Sanicula bipinnata Beecher Crampton 1950-4-22 526 Contra Costa above Judsonville, above old Empire Mine to south around top of hills. 182 Comment
  JEPS111596  Sanicula bipinnatifida A. G. Murdock 2004-3-19 236 Contra Costa McEwen Road 150 Comment
  JEPS111603  Sanicula bipinnatifida D. G. Kelch 2003-3-21 03 .50 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  JEPS111611  Sanicula bipinnatifida D. G. Kelch 2004-3-5 04 .6 Contra Costa Martinez - Rankin Open Space 56 Comment
  UC1123182  Sanicula bipinnatifida C. M. Belshaw 1936-5-12 2107 Contra Costa 5 mi s of Round Valley 487 Comment
  PASA1823  Sanicula bipinnatifida Annetta Carter 1929-3-31 Contra Costa Near Clayton. Hills north of Mt. Diablo Comment
  UC2028102  Sanicula bipinnatifida Barbara Ertter with Tony Morosco 1998-4-12 15981 Contra Costa Base of Mount Olympia on north side of Mount Diablo. 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
  RSA0033930  Sanicula crassicaulis Barbara Ertter, Richard K. Brummitt 1998-5-6 16087 Contra Costa Lower Donner Canyon Road on north base of Mount Diablo, ca. 1/2 miles south of Donner cabin site. 304 Comment
  LA33017  Sanicula saxatilis Lincoln Constance; T. Morley, Ren Hwa. Shan, W. H. Wagner 1946-4-26 3036 Topotype Contra Costa Mount Diablo, summit SW of lookout 1158 Comment
  RSA771181  Sanicula saxatilis Barbara Ertter, Brad Olson, Lynne Hosley 1991-4-7 9728 Contra Costa Eagle Peak on Mount Diablo, scree slopes on east and southwest side, esp. in drainages Comment
  UC566823  Sanicula tuberosa H. L. Mason 1929-3-15 5049 Contra Costa Nortonville Comment
  UCD102395  Sanicula tuberosa Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Bald Ridge Trail. Bald Ridge. 900 Comment
  UC692474  Saxifraga californica Mary L. Bowerman 1931-3-7 554 Contra Costa Mount Diablo, South road below junction Mount Diablo Comment
  JEPS48656  Saxifraga californica Elsa Kraeger 1926-3-7 Contra Costa at Toll Gate on way to Mount Diablo Comment
  SEINET12220596  Saxifraga californica H. M. Hall 1901-1 1633 Contra Costa region of San Francisco Bay Comment
  CDA37282  Scandix pecten-veneris D. G. Kelch 2011-3-31 11 .075 Contra Costa Carquinez Region; Richmond; Hilltop Lake Park. Comment
  JEPS75490  Scandix pecten-veneris P. F. Yorks 1974-4-19 134 Contra Costa 2 km s of Bear Creek Road (n of Briones Reservoir, on Hampton Road in Hampton Road Natural Reserve); Hampton Road Natural Reserve 200 Comment
  UC2028002  Schinus molle Barbara Ertter with Amy Rusev 1998-1-17 15904 Contra Costa Edge of Lime Ridge Open Space at NW foot of Mount Diablo, around former quarry [subsequently developed] on south side of Ygnacio Valley Road. Comment
  UCD50078  Schoenoplectus acutus var. occidentalis M. Wiesendanger 1926-6-9 1568 Contra Costa Common Tule. Richmond, Cal. Comment
  CAS-BOT-BC111481  Schoenoplectus americanus Volney Rattan 1879-1-1 s.n. Contra Costa Antioch Comment
  SD134082  Schoenoplectus californicus Walter Knight, Irja Knight 1977-6-18 Contra Costa On shore of San Joaquin River, Antioch sand dunes, Little Corral site. Growing in water at high tide. Comment
  JEPS46490  Scirpus W. L. Jepson 1919-1-5 8201 Contra Costa Antioch San Joaquin River (on beach) Comment
  SEINET192303  Scirpus acutus O. Woggoms, Woggoms 1930-4-18 4589 Contra Costa Jersey Island Contra Costa Co. Comment
  JEPS111892  Scirpus californicus D. G. Kelch 2004-6-6 04 .229 Contra Costa Martinez - Train Station Downtown Martinez. Alhambra Creek near bay and railroad Station 2 Comment
  JEPS111881  Scirpus maritimus A. G. Murdock 2004-5-28 300 Contra Costa Luzon 60 Comment
  JEPS111887  Scirpus microcarpus D. G. Kelch 2003-8-13 03 .137 Contra Costa Pinole Creek 68 Comment
  CAS-BOT-BC110869  Scirpus microcarpus Miss Mary Leolin Bowerman 1942-10-4 3851 Contra Costa Russelman Park Road 243 Comment
  CDA39144  Scirpus microcarpus D. G. Kelch 2003-4-13 3 .137 Contra Costa Carquinez Strait; Pinole Creek. Comment
  UC584351  Scribneria bolanderi G. L. Stebbins Jr. 1937-5-1 2112 Contra Costa 1 mi s of Summerfield (Summerfield=Somersville, at the head of Walker Canyon; due s of Antioch) Comment
  JEPS100143  Scrophularia californica subsp. californica G. Smick 2003-4-3 GAS 122 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS62851  Scutellaria tuberosa W. L. Jepson May 23 1891-May 24 1891 14938 Contra Costa Mount Diablo Comment
  UC1713660  Scutellaria tuberosa Herbert L. Mason 1928-4-15 4342 Contra Costa top of Moraga Ridge Comment
  UC1713668  Scutellaria tuberosa unknown 1027 Contra Costa Walnut Creek Comment
  UC536014  Scutellaria tuberosa Laurence S. Jones 1934-4-8 56 Contra Costa approximately 3 mi surface distance from peak of Mount Diablo 609 Comment
  RSA0055044  Scutellaria tuberosa Jim Shevock 1971-4-7 916 Contra Costa Mt. Diablo St. Park. 548 Comment
  UC2028051  Sedum radiatum Barbara Ertter with Ann Dennis 1998-1-25 15909 Contra Costa Donner Canyon on north side Mount Diablo, Middle Trail/Falls Trail. Comment
  UC11261  Sedum spathulifolium Brewer 842 Contra Costa Mt. Diablo Summit Comment
  JEPS37616  Senecio flaccidus var. douglasii W. L. Jepson 1923-10-4 10224 Contra Costa Brannan Island Antioch Comment
  CAS-BOT-BC363701  Senecio hydrophilus Walter Knight; I. Knight; J. T. Howell; E. McClintock; et al 1978-9-5 3228 Contra Costa Botany Cove Area. Browns Island Comment
  POM181456  Senecio vulgaris Ira L. Higgins 1930-4-18 4597 Contra Costa Levee, n. end of Jersey Island. Comment
  JEPS111875  Sequoia sempervirens D. G. Kelch 2004-3-5 04 .2 Contra Costa Martinez - Rankin Open Space Rankin Park, Martinez, Contra Costa County, CA. Sapling waif to 2 ms. In shade of Canyon. Probably seeded from nearby horticultural planting. 27 Comment
  JEPS88722  Sequoia sempervirens W. L. Jepson 1894-10-1 Contra Costa Redwood Peak Oakland Hills, Redwood Peak Comment
  UC1543053  Sequoia sempervirens Donald G. Nelson 1938-11-6 583 Contra Costa w Moraga (e slope of ridge below water storage tank); Moraga Ridge Comment
Read comments
Jan 25 2008
  CAS-BOT-BC80263  Sequoia sempervirens Paul F. Covel 1938-2-20 s.n. Contra Costa Pinehurst Comment
  HSC2615  Sequoia sempervirens D. A. Shally 1965-4-18 35 Contra Costa Canyon at Canyon Store Comment
  CAS-BOT-BC243541  Setaria parviflora John Thomas Howell; Gordon H. True 1972-6-29 48933 Contra Costa Along ditches on Byron Hot Springs Road southeast of Byron Comment
  UC1607656  Sidalcea malviflora subsp. laciniata Barbara Ertter, Chris Thayer 1993-5-7 11704 Contra Costa ca 1/2 mi n Vollmer Peak (= Bald Peak, in East Bay Municipal Utilities District land, e of Tilden Park); n of Vollmer Peak (= Bald Peak), e of Tilden Park 457 Comment
  UC18907  Sidalcea malviflora subsp. laciniata State Survey 1862-4-30 1002 Contra Costa Walnut Creek Comment
  UC692614  Sidalcea malviflora subsp. laciniata Mary L. Bowerman 1933-4-22 1880 Contra Costa opposite Heather Farm (near the sulphur spring, Shell Ridge where the highway crosses; meadow); Mount Diablo, Shell ridge, oppos Heather Farm Comment
  CDA31177  Silene gallica D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .219 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  JEPS73598  Silene gallica L. R. Heckard 1971-4-22 2494 Contra Costa e. Pinole (along R.R. grade near Hwy. 80 crossing) Comment
  POM181429  Sinapis arvensis I. L. Wiggins 1930-4-18 4611 Contra Costa Jersey Island. Comment
  UC691259  Sinapis arvensis Mary L. Bowerman 1938-5-25 3634 Contra Costa North Road 2 mi from North Gate (Mount Diablo); , North Road 182 Comment
  SEINET12764843  Sinapis arvensis Barbara Ertter 1998-4-4 15959 Contra Costa Northwest of Mount Diablo, west base of northwestern-most ridge, around old orchard.; 0 Comment
  UCD115408  Sinapis arvensis Morris Halperin 1929-4-21 s.n. Contra Costa Franklin Canon. Comment
  CDA947  Sisymbrium officinale D. G. Kelch 2006-5-5 6 .13 Contra Costa East Bay; Wildcat Canyon Regional Park. Near Wildcat Canyon Road terminus. Comment
  CDA23555  Sisymbrium orientale D. G. Kelch 2008-3-3 8 .027 Contra Costa Carquinez Strait; Crockett. Under Zampa (Carquinez) Bridge. Comment
  OBI70547  Sisymbrium orientale D. G. Kelch 2008-3-30 8 .027 Contra Costa Carquinez Strait: Crockets under Zampa (Carquinez) bridge 14 Comment
  UC2070555  Sisymbrium orientale Barbara Ertter with David Gowen and Mike Park 2004-4-13 18349 Contra Costa Black Diamond Mines Regional Park south of Pittsburg, River View Loop Trail at N end of ridge E of Sidney Flat Headquarters. Comment
  CDA21559  Sisyrinchium bellum D. G. Kelch, D. A. Weinstein 2008-4-25 8 .075 Contra Costa Alvarado Park (west end of Wildcat Canyon Park) on north-facing hillside above Hindu temple in mixed scrub/grassland. Comment
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Jan 7 2016
  CHSC24841  Sisyrinchium bellum M. A. Callahan 1976-4-15 17 Contra Costa Top of ridge ca. 145m e of house at 1976 Mohawk Dr. Pleasant Hill. 152 Comment
  UC2028094  Solanum americanum Barbara Ertter, Chris Thayer 1996-10-25 15384 Contra Costa West side of Mount Diablo, North Gate Road near ranches. Comment
  CAS-BOT-BC231746  Solanum lanceolatum Robert De Boer; M. Bergseng 1959-8-14 2943 Contra Costa 2459 Alva, El Cerrito Comment
  UC1050984  Solanum marginatum N. Floy Bracelin 1944-3-12 2626 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC2012998  Solanum nigrum Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14924 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  JEPS75486  Solanum umbelliferum P. F. Yorks 1974-3-22 118 Contra Costa 1.8 km s of Bear Creek Road on Hampton Road (in Hampton Road Natural Reserve, n of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  UC2031456  Solanum umbelliferum Barbara Ertter with David Gowen 2014-4-9 21708 Contra Costa West end of Green Ranch Road southwest of Mount Diablo summit Comment
  CAS-BOT-BC231713  Solanum umbelliferum Paul F. Covel 1940-5-12 s.n. Contra Costa Summit, Mt. Diablo Comment
  RSA181413  Solanum umbelliferum James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  RSA427350  Solanum umbelliferum H. de Forest 1930-4-6 s.n. Contra Costa S.E. of Mortonville. Small coal mine ravine. 244 Comment
  SEINET5760775  Solanum umbelliferum Lewis S. Rose 1941-3-13 41026 Contra Costa Marsh Creek, 5 miles east of Clayton Comment
  JEPS75542  Solidago velutina subsp. californica P. F. Yorks 1975-9-6 495 Contra Costa on Hampton Road ca 1.4 km s Bear Creek Road beyond entrance gate to Hampton Road Nature Reserve (n of Briones Reservoir); beyond entrance gat to Hampton Road Nature Reserve, Briones 170 Comment
  UC1999894  Solidago velutina subsp. californica J. C. Semple, B. A. Suripto, T. Ahmed 1990-8-16 9338 Contra Costa E of Berkeley, Berkeley Hills, Grizzly Peak Rd., disturbed area in formley [formerly] wooded slope N of road. 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
  JEPS25515  Soliva sessilis Robert Owen 1961-5-19 Contra Costa Tilden Regional Park Botanic Garden Comment
  UC2028182  Soliva sessilis Barbara Ertter 1998-5-3 16036 Contra Costa Above SW fork of Pine Creek at southwest base of Mount Diablo. Comment
  JEPS100169  Sonchus asper subsp. asper G. Smick 2003-5-8 GAS 182 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CHSC75065  Sonchus oleraceus Roger Thom 1987-5-26 22 Contra Costa 1100 block of Hillside Ave. Walnut Creek. Roadside. 36 Comment
  UC337971  Sorghum halepense unknown Contra Costa John Muir's yard Martinez Comment
  CDA32680  Spartina foliosa D. G. Kelch 2004-7-9 4 .314 Contra Costa Carquinez Strait Region; Rodeo Shoreline. Comment
  JEPS111779  Spergula arvensis A. G. Murdock 2004-3-5 214 Contra Costa Martinez - Rankin Open Space Along fire road at north end of park 80 Comment
  SEINET8728586 Image available Spergularia macrotheca Leo Koch 1940-1 1001 Contra Costa Two miles south of San Rafael ferry dock 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
  CAS-BOT-BC390536  Spergularia media Lewis S. Rose 1941-3-17 41034 Contra Costa 3 mi. s. of Byron 6 Comment
  UC691718  Stachys ajugoides var. rigida Mary L. Bowerman 1938-5-28 3637 Contra Costa 4.7 mi from North Gate (North Road, on w-facing bank between road and chaparral); Mount Diablo 457 Comment
  UCD125808  Stachys albens Malcolm A. Nobs; S. Galen Smith 1949-7-8 943 Contra Costa Otto's Black Bass Resort, 4 miles N of Kingston. Comment
  POM300999  Stachys bullata Mary L. Bowerman 1933-5-18 2119 Contra Costa Mount Diablo, Blackberry Spring. Comment
  UC2055619  Stachys pycnantha Joseph Andorfer Ewan 1933-10-15 8035 Contra Costa SW slope Mt. Diablo. 1066 Comment
  RSA289947  Stachys rigida subsp. quercetorum Mary L. Bowerman 1932-5-6 1430 Contra Costa Mitchell Canyon: at end of road; Mount Diablo. 252 Comment
  RSA0027640  Stellaria media subsp. pallida Barbara Ertter, Tony Morosco 1998-4-12 16015 Contra Costa Mount Olympia on north side of Mount Diablo. 884 Comment
  UCD33149  Stenotaphrum secundatum Beecher Crampton 1966-10-18 7817 Contra Costa Contra Costa County, Kensington, Berkeley Hills Blake Garden, UC Berkeley Dept. of landscape architecture. Comment
  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
  CAS-BOT-BC375767  Stephanomeria virgata Lewis S. Rose 1938-10-28 38308 Contra Costa Marsh Creek, 6 mi. e. of Clayton 152 Comment
  SEINET11800583  Stephanomeria virgata L. S. Rose 1938-1 38308 Contra Costa Marsh Creek, 6 mi E of Clayton 152 Comment
  SACT002407  Stipa setigera P. Kennedy 1914-3-15 Contra Costa Comment
  CAS-BOT-BC87102  Streptanthus glandulosus subsp. glandulosus Mary L. Bowerman 1935-6-15 3136 Contra Costa Mount Diablo. Eagle Point ridge east of 2632. 762 Comment
  CAS-BOT-BC87346  Streptanthus hispidus Alice Eastwood 1915-5-30 4526 Contra Costa Mount Diablo. Comment
  JEPS27001  Streptanthus hispidus E. W. Hicks 1917-3-24 112 Contra Costa Mt. Diablo 762 Comment
  UC691056  Streptanthus hispidus Mary L. Bowerman 1935-5-8 2971 Contra Costa Muir Area Mount Diablo (hillside in area burned in 1931) 1036 Comment
  UC691068  Streptanthus hispidus Mary L. Bowerman 1931-4-5 675 Contra Costa rocky point below Gregory Ranch; Mount 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
  UC338175  Streptanthus tortuosus unknown Contra Costa Mount Diablo Comment
Read comments
Jul 6 2020
  UC2028481  Stuckenia pectinata Barbara Ertter with Chris Thayer 1996-10-25 15371 a Contra Costa Northwest flank of Mount Diablo, Tick Pond at arc of Falcon Road between North Gate Road and Castle Rock Comment
  SEINET3160771  Stylomecon heterophylla L. S. Rose 1940-4-30 40247 Contra Costa Marsh Creek, 6 mi. e. of Clayton 46 Comment
  CAS-BOT-BC422909  Stylomecon heterophylla Mary L. Bowerman 1932-5-6 1410 Contra Costa Mount Diablo. Mitchell Canyon: West bank by floor of canyon. 243 Comment
  RSA217241  Stylomecon heterophylla D. E. Breedlove 1970-4-18 17430 Contra Costa At the north edge of Lafayette above Laurel Drive 244 Comment
  RSA446230  Stylomecon heterophylla H. de Forest 1930-4-6 s.n. Contra Costa [No location data on label] Comment
  CAS-BOT-BC269560  Symphoricarpos albus var. laevigatus E. E. Stanford 1930-5-24 1509 Contra Costa Marsh Creek Canyon Comment
  CAS-BOT-BC269564  Symphoricarpos albus var. laevigatus L. R. Abrams 1916-6-30 5720 Contra Costa Mt. Diablo near lake Comment
  RSA29681  Symphoricarpos albus var. laevigatus Joseph A. Ewan 1936-5-3 9500 Contra Costa Wildcat Creek. Comment
  JEPS13659  Symphoricarpos mollis H. H. Haworth 1917-5-3 Contra Costa Redwood Peak Comment
  JEPS111656  Symphyotrichum chilense Dean G. Kelch and Andrew G. Murdock 2003-9-12 AGM 204 Contra Costa Selby, west of Crockett. Comment
  JEPS41054  Symphyotrichum subspicatum Rimo Bacigalupi and L. R. Heckard 1965-5-11 9079 Contra Costa On rolling upper slopes of Brooks Island, mostly gently north and east exposures. Comment
  UC912542  Symphyotrichum subulatum Herbert L. Mason 1929-9-21 5439 Contra Costa 1 mi from junction of Borden Highway and road to Antioch Comment
  CAS-BOT-BC98331  Symphyotrichum subulatum var. parviflorum Walter Knight 1978-8-27 3196 Contra Costa Contra Loma Regional Park, at reservoir's edge. Comment
  UCD102393  Tauschia hartwegii Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Bald Ridge Trail. Bald Ridge. 890 Comment
  CAS-BOT-BC447423  Tellima grandiflora Elsie Zeile 1909-4-18 s.n. Contra Costa Redwood Peak Comment
  JEPS100076  Thysanocarpus curvipes G. Smick 2003-4-8 GAS 126 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS54202  Thysanocarpus curvipes W. L. Jepson 1891-5-24 Contra Costa Mt. Diablo Comment
  UC691060  Thysanocarpus curvipes Mary L. Bowerman 1933-4-15 1879 Contra Costa second ridge s of Arroyo del Cerro Mount Diablo (crest of ridge, Mount Diablo); , s of Arroyo del Cerro Comment
  SEINET3166337  Thysanocarpus curvipes subsp. curvipes P. J. Alexander, C. D. Bailey 2009-3-30 970 Contra Costa Mount Diablo State Park, 0.4 miles NE of the summit of Mt. Diablo, SW side of the saddle between the main peak and North Peak, 8.7 miles ESE of central Walnut Creek. 908 Comment
  JEPS127668  Torilis nodosa Barbara Ertter with David Gowen and Michael Park 2017-5-2 22816 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  RSA720806  Torilis nodosa Barbara Ertter, Mary L. Bowerman 1995-6-11 14254 Contra Costa Shell Ridge recreation area southeast of Walnut Creek, bank of Indian Creek above Indian Valley pond 76 Comment
  CAS-BOT-BC172934  Toxicodendron diversilobum John Thomas Howell 1933-5-14 11289 Contra Costa Hills east of St. Mary's College Comment
  RSA610777  Toxicodendron diversilobum Joseph A. Ewan 1936-7-5 9737 Contra Costa Wildcat Creek Comment
  UCD139844  Toxicoscordion fremontii Robert C. Bechtel 1952-4-12 55 Contra Costa West side Mount Diablo. 914 Comment
  CAS-BOT-BC377055  Tragopogon dubius R. E. Frenkel 1964-4-29 466 Contra Costa On the south side of Ignacio Valley Road, 0.6 mile west of the junction with Marsh Creek Road 182 Comment
  CDA4740  Tribulus terrestris T. C. Fuller 1961-9-13 6999 Contra Costa South of Highway 4, 0.1 miles west of Antioch Bridge Road, 2 miles west of Oakley. 0 Comment
  JEPS63121  Trichostema lanceolatum W. L. Jepson 1895-9-14 14880 Contra Costa Lafayette Comment
  UC416593  Trichostema lanceolatum V. King Chestnut 1887-9-18 Contra Costa Mount Diablo Comment
  UC1795842  Trichostema lanceolatum Barbara Ertter, M. L. Bowerman, L. Schultheis, Kevin Hintsa 1995-10-22 14530 Contra Costa Three Springs Trail on northeast side of Mt. Diablo, south of crest of Marsh Creek Rd., dried roadside pond, clay. Comment
  HSC17937  Trientalis latifolia J. Wendell Howe 1930-5-25 Contra Costa Moraga Rd. Comment
  RSA161241  Trifolium albopurpureum Peter H. Raven, H. L. Mason, R. Ornduff 1957-4-4 10575 Contra Costa Hill near road 6.3 miles W. of Byron. Comment
  UC148547  Trifolium albopurpureum var. albopurpureum Katharine Brandegee 1909-4-24 Contra Costa Antioch Comment
  UC148552  Trifolium albopurpureum var. albopurpureum Katharine Brandegee 1909-4-24 Contra Costa Antioch Comment
  UC16612  Trifolium albopurpureum var. dichotomum Jos. Burtt Davy 1901-4-21 7048 Contra Costa Wildcat Canyon Comment
  UC2028277  Trifolium albopurpureum var. dichotomum Barbara Ertter, Susan D'Alcamo 1999-4-18 16503 Contra Costa Bald Ridge Trail on NW side of Mount Diablo summit. Comment
  JEPS65682  Trifolium albopurpureum var. olivaceum Willis L. Jepson 1891-6-9 13671 Contra Costa Fish Ranch Berkeley Hills Comment
  UC2028082  Trifolium bifidum Barbara Ertter, Tony Morosco 1998-4-12 15987 Contra Costa Base of Mount Olympia on north side of Mount Diablo, NE of Olympia Trail. Comment
  UC16439  Trifolium bifidum var. bifidum W. H. Brewer 1862-5-29 1184 Contra Costa Camp 71 Marsh's Ranch; Marsh's Ranch, Camp 71, Contra Costa Co. Comment
  UC2028117  Trifolium bifidum var. bifidum Barbara Ertter with Richard K. Brummitt 1998-5-6 16092 Contra Costa Lower Donner Canyon on north base of Mount Diablo, Hetherington Trail upstream from Donner Cabin. Comment
  RSA691925  Trifolium bifidum var. decipiens Barbara Ertter, Chris Thayer 1993-5-7 11714 Contra Costa Ca 1/2 mile N of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land E of Tilden Park. Grazing land on lower slopes S of Wildcat Canyon Road. Comment
  UC1795834  Trifolium bifidum var. decipiens Barbara Ertter, Chris Thayer 1995-4-25 13982 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Sycamore Canyon trail from Knobcone Point Rd., open grassland. 457 Comment
  CDA23626  Trifolium ciliolatum D. G. Kelch 2008-4-12 8 .036 Contra Costa Mt Diablo. Mitchell Canyon. Along road looping north of main Mitchell Canyon Rd. Comment
  CDA27926  Trifolium ciliolatum D. G. Kelch, A. G. Murdock 2003-4-3 3 .35 Contra Costa Carquinez Strait Region; Cummings Skyway. South of Cummings Skyway and Crockett Boulevard. Comment
  CDA29796  Trifolium ciliolatum D. G. Kelch, Troy MacGregor 2009-5-1 9 .265 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  JEPS65796  Trifolium ciliolatum W. L. Jepson 1925-4-26 10689 Contra Costa Black Hills Mt. Diablo Comment
  UC146899  Trifolium ciliolatum Katharine Brandegee may 1907 Contra Costa Antioch Comment
  UC555456  Trifolium ciliolatum H. L. Mason 1929-4-25 5204 Contra Costa Marsh Creek Rd Comment
  CDA33837  Trifolium ciliolatum D. G. Kelch 2010-5-15 10 .122 Contra Costa Mt. Diablo. Trail from Juniper Camp to Deer Flat. 0 Comment
  RSA349410  Trifolium depauperatum var. amplectens L. S. Rose 1941-3-27 41068 Contra Costa 2 mi. w. of Byron 61 Comment
  UC630925  Trifolium depauperatum var. depauperatum P. B. Kennedy 1928-4-19 10035 b Contra Costa Byron Comment
  UCD108372  Trifolium depauperatum var. depauperatum P. B. Kennedy Date Unknown s.n. Contra Costa Vicinity of Bryon Springs, Greene. Comment
  UC1103439  Trifolium depauperatum var. hydrophilum J. P. Tracy 1900-3-24 629 Contra Costa near Stege 3 Comment
  UCSC011140  Trifolium depauperatum var. laciniatum Randy Morgan 1999-5-30 3510 Contra Costa Originally from Byron Springs Rd Comment
  CDA27934  Trifolium depauperatum var. truncatum D. G. Kelch, A. G. Murdock 2005-5-6 5 .229 Contra Costa Carquinez Strait Region; Franklin Canyon. East of Christie Road. South of Route 4. Comment
  POM301858  Trifolium depauperatum var. truncatum Mary L. Bowerman 1932-3-23 1125 Contra Costa Oak Grove School junction, between Monument and Concord Comment
  UCD108394  Trifolium depauperatum var. truncatum P. B. Kennedy 1929-4-21 10227 Contra Costa Franklin Canyon Road from Concord Soldier's Monument. Comment
  UC1795665  Trifolium dubium Barbara Ertter, Mary Bowerman et al. 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. 304 Comment
  JEPS65882  Trifolium fucatum W. L. Jepson 1923-4-22 9857 Contra Costa Mt. Diablo Comment
  JEPS73328  Trifolium fucatum Edward Lee 1935-3-29 1311 Contra Costa e Kirker Pass (Donovan Rd, w watershed of Kirker Creek) Comment
  UC16537  Trifolium fucatum J. Burtt Davy 1900-3-24 6531 Contra Costa Stege Comment
  UC924217  Trifolium fucatum H. S. Reed 1940-4-30 356 Contra Costa Marsh Creek northeast slopes of Mount Diablo Comment
  SEINET12147993  Trifolium fucatum Unknown 1878-1 s.n. Contra Costa Near Mt. Diablo Comment
  UC33592  Trifolium gracilentum J. P. Tracy 1900-3-24 622 Contra Costa Point Richmond 15 Comment
  UC517488  Trifolium gracilentum John Thomas Howell 1933-5-14 11249 Contra Costa e St. Mary's College (hills) Comment
  UC555448  Trifolium gracilentum H. L. Mason 1929-3-31 5150 Contra Costa along San Joaquin River; Antioch Comment
  UC692689  Trifolium gracilentum Mary L. Bowerman 1933-5-4 1996 Contra Costa e end Rock City Ridge (=Fossil Ridge) (roadbank); Mount Diablo Comment
  UC2027842  Trifolium gracilentum Barbara Ertter with Dan Norris 2001-4-15 17612 Contra Costa Eest side Mount Diablo, divide NW of pond at base of China Wall formation Comment
  RSA0033857  Trifolium hybridum Barbara Ertter 2000-7-16 17391 Contra Costa Lower Pine Creek in Diablo Foothills Regional Park, a short distance upstream from dry check-dam. 121 Comment
  UC2028325  Trifolium incarnatum Barbara Ertter with Richard K. Brummitt 1998-5-13 16142 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, road from Somersville Road to south leg of Loughler Loop Trail. Comment
  UCD35902  Trifolium microcephalum Beecher Crampton 1966-4-26 7666 Contra Costa ca. 2.5 miles west of Martinez on the road to Crockett. 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
  UC692669  Trifolium microdon Mary L. Bowerman 1935-4-19 2872 Contra Costa ca 7 mi w Northgate (by rd, ridge w of the power poles, above the rd junction); Mount Diablo 670 Comment
  UC555403  Trifolium oliganthum H. L. Mason 1929-3-29 5131 Contra Costa 2 mi above Clayton (Marsh Creek Rd) Comment
  CDA29515  Trifolium tomentosum D. G. Kelch, Troy MacGregor 2009-5-1 9 .286 Contra Costa Carquinez Strait; Fernandez Ranch in valley bottom along Christie Rd. Comment
  UCR263551  Trifolium tomentosum Barbara Ertter 2002-5-8 17832 Contra Costa San Francisco Bay Region, Richmond Field Station 6 Comment
  UC1130132  Trifolium willdenovii C. M. Belshaw 1936-4-8 2071 Contra Costa 2.25 mi e Clayton; Mt. Diablo quad 381 Comment
  UC1197527  Trifolium willdenovii J. P. Tracy 1900-3-24 620 Contra Costa Point Richmond 15 Comment
  UC1948963  Trifolium willdenovii William J. Ferlatte, L. Maynard Moe 1970-4-27 1261 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC407376  Trifolium willdenovii Ira L. Wiggins 1930-4-17 4575 Contra Costa 1/4 mi s Byron Comment
  UC692649  Trifolium willdenovii Mary L. Bowerman 1931-5-7 813 Contra Costa near saddle (ne slope, Meridian Peak); Mount Diablo 914 Comment
  UC725897  Trifolium willdenovii A. A. Heller 1938-4-9 15017 Contra Costa 3 mi sw Antioch (from type region) Comment
  RSA32719  Trifolium willdenovii A. A. Heller 1938-4-9 15017 Contra Costa 3 miles southwest of Antioch. Comment
  UC16828  Trifolium wormskioldii Jos. Burtt Davy 1900-6-7 6663 Contra Costa near Martinez Comment
  UC2028570  Triglochin scilloides Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15518 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  JEPS15155  Triphysaria pusilla C. M. Belshaw 1936-5-7 2046 Contra Costa 2 mi s San Ramon; Mt. Diablo Quad. Comment
  CDA41895  Triphysaria versicolor subsp. faucibarbata D. G. Kelch 2005-5-5 5 .206 Contra Costa Carquinez Strait Region; Point Pinole - Giant Marsh. Giant Salt Marsh. Comment
  UC1948966  Triteleia laxa William J. Ferlatte, L. Maynard Moe 1970-4-27 1229 Contra Costa San Francisco Bay: Red Rock Island Comment
  CAS-BOT-BC526327  Triteleia laxa Barrett Anderson 1987-4-30 3501 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road 125 Comment
  CAS-BOT-BC526330  Triteleia laxa Volney Rattan 1879-1-1 s.n. Contra Costa Antioch Comment
  SEINET12044746  Triteleia laxa J. T. Howell 1931-1 6468 Contra Costa Oakland Hills Comment
  UC191739  Tropidocarpum capparideum Edward Lee Greene 1888-3-24 Contra Costa Byron Spring Comment
  CAS-BOT-BC67401  Tropidocarpum gracile Alice Eastwood 1914-2-24 3742 Contra Costa Antioch. Comment
  CAS-BOT-BC67403  Tropidocarpum gracile Alice Eastwood 1914-3-14 3824 a Contra Costa Byron Springs. Comment
  UC673302  Tropidocarpum gracile H. L. Mason 1932-3-20 6842 Contra Costa Antioch sand hills Comment
  UC857586  Tropidocarpum gracile Lewis S. Rose 1940-4-30 40249 A Contra Costa 5 mi e Clayton (fields); Marsh Creek 60 Comment
  CAS-BOT-BC67408  Tropidocarpum gracile Niall McCarten; V. I. Dains 1986-6-11 03231145 Contra Costa 500 yards west of Camino Diablo bridge over Kellogg Creek. Comment
  UC2070553  Tropidocarpum gracile Barbara Ertter with David Gowen 2006-6-6 18675 Contra Costa Upper San Leandro Reservoir Watershed (EBMUD) south of Moraga, on Rocky Ridge Tail. Comment
  UC1241758  Typha domingensis Malcolm A. Nobs 1950-8-20 Contra Costa Nortonville Comment
  JEPS111916  Ulmus minor Dean G. Kelch and Andrew G. Murdock 2004-4-26 DGK 04 .131 Contra Costa Point Pinole. Comment
  RSA721868B  Ulmus minor Barbara Ertter, Richard K. Rabeler 1994-6-18 12837 Contra Costa Pt. Pinole Regional Shoreline at north end of Richmond; northeast corner of park, near jct Marsh Trail and Cook's Point Trail. Comment
  JEPS75485  Umbellularia californica P. F. Yorks 1974-2-3 108 Contra Costa 1.6 km s of Bear Creek Road (n of Briones Reservoir on Hampton Road in Hampton Road Natural Reserve); Hampton Road Natural Reserve 170 Comment
  RSA446339  Umbellularia californica H. de Forest 1930-3-28 s.n. Contra Costa Slopes of Mt. Diablo. Comment
  UC1126325  Umbellularia californica H. S. Yates 1936-3-14 5362 Contra Costa Marsh Creek 381 Comment
  UC691943  Umbellularia californica Mary L. Bowerman 1930-8-31 453 a Contra Costa Mount Diablo, Sloan Road e of the Sloan place (Inner Black Hills) Mount Diablo Comment
  CDA37275  Umbellularia californica D. G. Kelch 2009-12-21 9 .712 Contra Costa Vicinity of Richmond; canyon northeast of Alvarado Park. 0 Comment
  JEPS111760  Uropappus lindleyi D. G. Kelch 2005-5-13 05 .258 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Area along Vista Road ~ 2.5 kiloms West of Martinez 45 Comment
  JEPS75559  Uropappus lindleyi P. F. Yorks 1974-5-10 156 Contra Costa ca 1.6 km from Bear Creek Road on Hampton Road in Hampton Road Natural Reserve (n of Briones Reservoir) 180 Comment
  UC691799  Uropappus lindleyi Mary L. Bowerman 1933-6-3 2242 Contra Costa Ransom Point Ridge , Ransom Point Ridge (Mount Diablo) Comment
  UC2027813  Uropappus lindleyi Barbara Ertter with Stu Garrett 1997-3-29 15532 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  CHSC116352  Urtica urens D. G. Kelch 2006-2-25 6084 Contra Costa Carquinez Strait: Crockett. Edwards Canyon. 53 Comment
  UC1050820  Verbascum olympicum N. Floy Bracelin 1943-5-30 1352 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  POM312406  Verbena hastata Malcolm A. Nobs, S. Galen Smith 1949-7-8 942 Contra Costa Otto's Black Bass Resort, 4 miles north of Kingston. Comment
  RSA29666  Verbena lasiostachys var. lasiostachys Joseph A. Ewan 1936-7-5 9719 Contra Costa Reservoir road, Wildcat Creek. Comment
  CDA40699  Verbena lasiostachys var. scabrida D. G. Kelch 2005-7-14 5 .461 Contra Costa Carquinez Strait Region; Upper Canada del Cierbo. Comment
  UC1819025  Verbena lasiostachys var. scabrida Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14633 Contra Costa Little Pine Creek at northwest foot of Mt. Diablo, along trail connecting North Gate Road to Castle Rock Road, Diablo Foothills Regional Park; along stream above stable, riparian vegetation. 91 Comment
  RSA22314  Verbena robusta Joseph A. Ewan 1936-7-5 9726 Contra Costa Near CCC camp, Wildcat Creek. (see field book) Comment
  UC2070533  Veronica americana Barbara Ertter with Dan Norris 2000-12-3 17555 Contra Costa West side Mount Diablo, Maple Spring on North Gate Road just south of Angel Kerley Road junction. Comment
  JEPS127090  Veronica peregrina Lowell Ahart, Josephine Guardino 2016-4-19 20781 Contra Costa 1.4 miles (air) northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Spring USGS 7.5' Quad. Comment
  JEPS16491  Veronica peregrina subsp. xalapensis W. L. Jepson 1940-6-5 19932 Contra Costa Richmond Comment
  UC41835  Veronica peregrina subsp. xalapensis Chesnut and Drew April, 1889 Contra Costa Clayton Comment
  CHSC21626  Veronica serpyllifolia subsp. serpyllifolia Willis Ball 1975-3-26 510 Contra Costa Contra Loma Regional Park. In area #1. On s side of lake ca. 50 yds e of restroom facilities. 30 Comment
  CAS-BOT-BC267240  Viburnum ellipticum Mary L. Bowerman; Walter & Irja Knight 1967-11-6 2301 Contra Costa Near Curry Park in Morgan Territory, Sulphur Spring Canyon, half way between canyon source and active spring, 15 yards above creek 365 Comment
  U