Search Results — 2000 specimen records retrieved (1377 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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A yellow cell in the column headed "?", for records with coordinates, indicates a discrepancy with respect to range as specified in the eFlora. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  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
  UC2029096  Acacia cyclops Barbara Ertter 1990-10-14 9660 Contra Costa Point Isabel Regional Shoreline on San Francisco Bay in SW El Cerrito, at end of Rydin Road. 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
  CAS-BOT-BC436989  Acaena pinnatifida var. californica John Thomas Howell 1933-5-14 11285 Contra Costa Hills east of St. Mary's College Comment
  UC692719  Acer macrophyllum Mary L. Bowerman 1931-3-21 605 Contra Costa Sycamore Canyon Mount Diablo, Sycamore Canyon Comment
  UC762183  Acer macrophyllum R. F. Hoover 1938-5-4 3345 Contra Costa peak e Tassajero Creek (canyon slope); Peak e of Tassajero Creek (canyon slope) Comment
  UC1051142  Acer macrophyllum N. Floy Bracelin 1943-7-18 2560 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  SBBG27295  Acer negundo A. Carter 1937-4-4 1229 Contra Costa Moraga Valley, 2.5 mi N of Moraga 182 Comment
  POM247253  Acer negundo subsp. californicum Annetta Carter 1937-4-4 1229 Contra Costa Moraga Valley, 2 1/2 miles north of Moraga 183 Comment
  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
  SEINET242634 Image available Achnatherum thurberianum M. E. Barkworth, S. W. L. Jacobs; Betty Jacobs 2003-4-7 2003 /4 Contra Costa Tilden Regional Park, east of Berkeley Comment
  UC691544  Achyrachaena mollis Mary L. Bowerman 1931-3-29 627 Contra Costa Cave Point Ridge Comment
  UC691545  Achyrachaena mollis Mary L. Bowerman 1931-4-4 651 Contra Costa not more than 4.5 mi on West (= North) road Mount Diablo (entrance); Mount Diablo Comment
  CAS-BOT-BC29888  Achyrachaena mollis Paul F. Covel 1938-4-18 s.n. Contra Costa Altamont Pass Comment
  CAS-BOT-BC29889  Achyrachaena mollis Rimo Bacigalupi 1920-4-10 1278 Contra Costa Grade above Arroyo Mocho on way to Cedar Mtn. about 10 miles SE of Livermore Comment
  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
  JEPS112095  Adenostoma fasciculatum D. G. Kelch 2005-3-25 05 .85 Contra Costa Pinole Peak Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course). East of Pinole Peak 250 Comment
  RSA498006  Adenostoma fasciculatum Robert F. Hoover 1939-04 20470 Contra Costa Head west branch Markley Canyon 305 Comment
  UC42032  Adiantum jordanii Ivar Tidestrom vi, 1895 Contra Costa canyon near Crockett Comment
  UC723807  Aesculus californica Joseph Andorfer Ewan 1935-2-3 9082 Contra Costa 0.25 mi below Orinda road bridge (Wildcat Creek); Wildcat Creek Comment
  UC1795709  Agoseris apargioides var. apargioides Barbara Ertter, Lincoln Constance 1995-6-16 14259 Contra Costa Alameda/Contra Costa county line. Skyline serpentine grassland in Redwood Regional Park (east of old HQ on Skyline Rd.). Comment
  UC400161  Agoseris grandiflora var. grandiflora Ynes Mexia 1929-4-21 2370 Contra Costa in open fields of grass Moraga Valley Comment
  CAS-BOT-BC15427  Agoseris grandiflora var. grandiflora L. R. Abrams 1921-5-25 8042 Contra Costa Mt. Diablo at spring 4.5 from summit Comment
  CAS-BOT-BC22970  Agoseris heterophylla John Thomas Howell 1933-5-14 11260 Contra Costa Hills east of St. Mary's College Comment
  POM301002  Agoseris heterophylla Mary L. Bowerman 1933-5-8 2013 Contra Costa Fossil Ridge near crest, north side by side road. Comment
  UC691431  Agoseris retrorsa Mary L. Bowerman 1931-4-25 783 Contra Costa summit Meridian Peak; Mount Diablo Comment
  CDA29002  Agrostis avenacea D. G. Kelch 2006-11-11 06 .505-B Contra Costa Carquinez Strait; Along RR tracks N of Pt Pinole in swale W of RR. Comment
  JEPS107127  Agrostis hallii Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14221 Contra Costa Mt. Diablo southeast of Walnut Creek, north of Curry Point. 518 Comment
  SEINET186077  Agrostis pallens Virginia E. Long 1932-5-30 175 a Contra Costa Found along south east rim of Wildcat canyon. 396 Comment
  RSA0033844  Agrostis stolonifera Barbara Ertter 2000-7-16 17383 Contra Costa Diablo Foothills Regional Park, along Pine Creek between Castle Rock Recreation Area and flood-control checkdam. 106 Comment
  UC2028373  Aira caryophyllea Barbara Ertter 1998-6-20 16233 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo. Alkali Pond at Wiget Lane entrance. Comment
  UCD55707  Aira caryophyllea Beecher Crampton 1955-4-11 2471 Contra Costa Richmond, vacant lots of 41st St. and Bissell. Comment
  RSA0027712  Aira caryophyllea Barbara Ertter, Richard K. Brummitt 1998-5-6 16105 Contra Costa Point San Pablo west of Richmond, crest of road to yacht harbor. Comment
  CAS-BOT-BC175361  Allenrolfea occidentalis J. W. Congdon 1889-6-19 s.n. Contra Costa Byron Springs Comment
  RSA107394  Allenrolfea occidentalis L. S. Rose 1955-9-12 55173 Contra Costa 2 miles E of Byron. 15 Comment
  UC767621  Allenrolfea occidentalis R. F. Hoover 1937-8-31 2707 Contra Costa Byron Hot Springs Comment
  UCR142797  Allenrolfea occidentalis E. E. Stanford 1930-1 1871 Contra Costa Sacramento Valley, Near Old River Comment
  UC1481556  Allium amplectens Neil Havlik 1980-5-18 921 Contra Costa along fire road on e side, Morgan Territory Regional Preserve Morgan Territory Regional Preserve Comment
  UC692023  Allium falcifolium Mary L. Bowerman 1930-6-14 333 Contra Costa summit Mount Diablo Mount Diablo Comment
  CAS-BOT-BC469111  Allium falcifolium L. R. Abrams 1921-5-25 2038 Contra Costa Summit Mt. Diablo Comment
  UC13800  Allium serra Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  CAS-BOT-BC475529  Allium serra Alice Eastwood 1922-5-21 11321 Contra Costa Arroya del Valle near Livermore Comment
  CAS-BOT-BC475533  Allium serra W. W. Carruth 1902-4-29 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC475539  Allium serra Reed C. Rollins 1946-3-25 3043 Contra Costa Western slope of Mount Diablo Comment
  RSA59637  Allium serra Verne Grant, Alva Grant 1950-5-13 8896 Contra Costa Saddle between N & Meridian peaks, Mt. Diablo. Comment
  UC1481558  Allium serra Neil Havlik 1980-5-18 920 Contra Costa along fire road on e side, Morgan Territory Morgan Territory Comment
  UC692029  Allium serra Mary L. Bowerman 1932-4-16 1361 Contra Costa Eagle Point ridge n 1862 point (canyon between the two ridges); Mount Diablo, Eagle Point ridge Comment
  JEPS112494  Allium unifolium D. G. Kelch 2005-4-15 05 .133 Contra Costa Rodeo Creek East-West canyon feeding into Rodeo Creek 120 Comment
  UC1481549  Allium unifolium Neil Havlik 1980-5-16 919 Contra Costa e Little Farm; Tilden Regional Park Comment
  CAS-BOT-BC170926  Alnus rhombifolia Mary L. Bowerman 1931-10-13 1058 Contra Costa Mount Diablo. Alamo Canyon 259 Comment
  JEPS58619  Alnus rhombifolia W. L. Jepson 1899-2-26 Contra Costa Wild Cat Creek Berkeley Hills Comment
  CAS-BOT-BC170925  Alnus rhombifolia John Thomas Howell 1925-9-19 1474 Contra Costa East side of Moraga Ridge, Oakland Hills Comment
  POM300606  Alnus rhombifolia Mary L. Bowerman 1931-10-13 1058 Contra Costa Alamo Canyon. Mount Diablo. 259 Comment
  RSA452847  Alnus rubra M. B. Dunkle 1931-7-18 2526 Contra Costa Strawberry Canyon, Berkeley. San Francisco Bay Region. Comment
  SEINET3917842  Alopecurus myosuroides George Murray 1964-5-24 s.n. Contra Costa Near San Pablo Dam.; 0 Comment
  CDA20558  Alternanthera philoxeroides unknown 2005-6-23 s.n. Contra Costa San Francisco Bay Area; Garden weed in Danville, CA. 0 Comment
  POM300589  Amaranthus californicus Mary L. Bowerman 1935-9-13 3343 Contra Costa Frog Pond Comment
  JEPS78610  Ambrosia psilostachya Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3300 Contra Costa South landing Browns Island Comment
  CDA6724  Ambrosia trifida V. Guise 1980-10-17 Contra Costa Lora Kayfes property, Gateway Road, Bethel Island. 0 Comment
  SEINET11910975  Amelanchier alnifolia W. Knight, Knight, I. 1983-1 4741 Contra Costa Tilden Botanic Garden, Berkeley Comment
  UCR12098  Amsinckia Coleta A. Lawler 1964-5-8 58 Contra Costa San Francisco Bay Region, Hampton Road, 3 .7 mi south of junction with Alhambra Valley Road; c. 10 miles northwest of Lafayette 46 Comment
  CAS-BOT-BC222221  Amsinckia John Thomas Howell 1934-4-8 11814 Contra Costa 7 miles from Clayton on road to Livermore Comment
  CAS-BOT-BC222231  Amsinckia John Thomas Howell 1933-3-29 10916 Contra Costa Pittsburg Comment
  UC78264  Amsinckia grandiflora T. S. Brandegee May 1887 Contra Costa Judsonville Comment
  JEPS17178  Amsinckia intermedia Francia Chisaki, Rimo Bacigalupi 1957-3-27 5759 Contra Costa 0.1 mi nw of crossing with Empire Avenue (along Neroly Road) 24 Comment
  SBBG39713  Amsinckia intermedia J. T. Howell 1933-5-14 11225 Contra Costa St Mary's College Comment
  SEINET12479829  Amsinckia intermedia R. R. Halse 1988-2-20 3541 Contra Costa Along State Hwy 4, near its junction with Balfour Road, S edge of Brentwood. 23 Comment
  UC1073377  Amsinckia intermedia George B. Rossbach 1955-3-20 457 Contra Costa sw base of Mount Diablo Comment
  RSA201409  Amsinckia intermedia J. T. Howell 1933-5-14 11225 Contra Costa St. Mary s College Comment
  SEINET12519155  Amsinckia intermedia Richard R. Halse 1988-1 3541 Contra Costa Along State Hwy. 4 near its junction with Balfour Road on the south edge of Brentwood 5 Comment
  SD6735  Amsinckia lunaris Edward L. Greene 1887-4-16 Contra Costa Comment
  UC56850 Image available Amsinckia lunaris H. M. Hall 1900-3-24 Contra Costa Briones Valley Region of San Francisco Bay; Briones Valley, region of San Francisco Bay Comment
Read comments
Jan 7 2013
  UC762084  Amsinckia lunaris R. F. Hoover 1939-4-24 4058 Contra Costa lower end of San Pablo Resevoir Comment
  UCD119728  Amsinckia lycopsoides Morris Halperin 1929-4-21 s.n. Contra Costa St. Mary's College Campus. Comment
  JEPS108530  Amsinckia menziesii var. menziesii Lisa Schultheis with Kevin Hintsa 1995-4-25 67 -95 Contra Costa Mount Diablo. Wall Point Road, where an arroyo crosses the trail, near the Macedo Ranch parking lot Comment
  UC726539  Amsinckia menziesii var. menziesii A. A. Heller 1942-4-20 16427 Contra Costa just e of the Boat School, of the Antioch High School, not far from San Joaquin River Comment
  UC24597 Image available Amsinckia tessellata J. Burtt Davy 1895-4-7 931 Contra Costa Antioch; ; Antioch, Contra Costa Co. Comment
  UC479952  Amsinckia tessellata var. tessellata Katharine Brandegee May 1892 Contra Costa Antioch Comment
  CDA23562  Anagallis arvensis D. G. Kelch, D. A. Weinstein 2008-4-25 8 .081 Contra Costa Alvarado Park (west end of Wildcat Canyon Park) on north-facing hillside above Hindu temple in mixed scrub/grassland. Comment
Read comments
Jan 7 2016
  JEPS43119  Anagallis arvensis W. L. Jepson 1923-4-22 9865 Contra Costa Mt. Diablo Comment
  UCD146714  Anagallis arvensis G. F. Hrusa; D. Crowe 1998-5-8 14394 Contra Costa Sacramento-San Joaquin River Delta. East end of Dow Chemical property at Pittsburg. 15 Comment
  UC691813  Ancistrocarphus filagineus Mary L. Bowerman 1932-4-9 1321 Contra Costa firebreak on large spur which heads into Sycsamore Canyon Inner Black Hills; Mount Diablo Comment
  UC2027832  Ancistrocarphus filagineus Barbara Ertter with John Ginochio and Mary Bowerman 2001-5-8 17631 Contra Costa northwest flank of Mount Diablo, Ginochio property north of park boundary on Long Ridge. Comment
  UC162557  Androsace elongata subsp. acuta H. M. Hall 1901-4-5 Contra Costa Mount Diablo San Francisco Bay region, Mt. Diablo 1074 Comment
  UC35144  Androsace elongata subsp. acuta W. C. Blasdale 1896-2-28 Contra Costa w Clayton (Clayton) Comment
  RSA293388  Anemopsis californica Reino Alava 1958-5-25 2074 Contra Costa 1.5 miles N of Dublin on the rd to Walnut Creek. Comment
  CDA1106  Angelica californica D. G. Kelch, A. G. Murdock 2003-8-13 3 .127 Contra Costa Carquinez Strait; Vaca Canyon. Comment
  UC692565  Angelica californica Mary L. Bowerman 1931-6-2 915 Contra Costa Mount Diablo, Gregory Ranch Road Mount Diablo; , Gregory Ranch Road 518 Comment
  SEINET8242148  Antirrhinum vexillocalyculatum A. D. E. Elmer 1903-1 4809 Contra Costa Mount Diablo. Comment
  RSA0069383  Aphanes arvensis Katie Gallagher, Nick Jensen 2014-4-26 206 Contra Costa Las Trampas Regional Wilderness. 487 Comment
  UC2042946  Apiastrum angustifolium Barbara Ertter with David Gowen 2014-4-12 21714 Contra Costa Ridge on north side of Prospectors Gap Road ca. 1 mile east of Mount Diablo summit. 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
  RSA721743  Aquilegia formosa Barbara J. Ertter, Mary L. Bowerman 1994-6-19 12840 Contra Costa Mt. Diablo State Park E of Walnut Creek, Muir Picnic Area on Summit Road. 1006 Comment
  RSA0125527  Arabis breweri L. S. Rose 1935-5-16 35170 Contra Costa Mt. Diablo, Summit. Comment
  UCSC000302  Arabis breweri Carl Meyer 1928-2-22 283 Contra Costa Mount Diablo Comment
  UC691128  Arabis glabra Mary L. Bowerman 1932-5-6 1431 Contra Costa Mitchell Canyon Mount Diablo 251 Comment
  UC692482  Arbutus menziesii Mary L. Bowerman 1932-9-5 1548 Contra Costa Mount Diablo, Inner Black Hills, e of the meridian Inner Black Hills; Mount Diablo, Inner Black Hills Comment
  CAS-BOT-BC407799  Arceuthobium campylopodum R. Bacigalupi 1922-9-24 81 Contra Costa Mitchell Canon, Mt. Diablo Comment
  UC1085342  Arceuthobium campylopodum Job Kuijt 1957-9-29 1425 b Contra Costa Rock City Mount Diablo Comment
  UC1085344  Arceuthobium campylopodum Job Kuijt 1957-9-29 1425 a Contra Costa Rock City Mount Diablo Comment
  UCSC006431  Arctostaphylos Randall Morgan 1991-4-28 s.n. Contra Costa Alamo, S-Gate Rd, 1/4 mi beyond Curry Pt, Mt. Diablo Comment
  SEINET12524523 Image available Arctostaphylos andersonii L. S. Rose 1934-1 34010 Contra Costa Summit of Oakland hills above redwood canyon. Comment
  SEINET11989149  Arctostaphylos andersonii var. auriculata B. A. Stein 1981-1 460 Contra Costa Mt. Diablo State Park, Rock City Campground 457 Comment
  CAS-BOT-BC24120  Arctostaphylos auriculata Alice Eastwood 1922-3-17 11083 Contra Costa Mt. Diablo Comment
  JEPS19884  Arctostaphylos auriculata W. L. Jepson 1922-5-23 9662 Contra Costa Head of Sycamore Creek Monte Diablo Comment
  JEPS38915  Arctostaphylos auriculata Mary L. Bowerman 1932-2-13 1086 Contra Costa on ridge between main forks of canyon Mount Diablo; , Alamo Canyon Comment
  RSA0036101  Arctostaphylos auriculata Lewis S. Rose 1949-3-6 49004 Contra Costa Mt. Diablo, above Rock City. 518 Comment
  RSA202870  Arctostaphylos auriculata Edward Lee 1936-1-12 1713 Contra Costa Immediately south of Nortonvillep Comment
Read comments
Aug 25 2011
  RSA622485  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27602 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments
Jan 30 2013
  SDSU1486  Arctostaphylos auriculata D. F. Howe 1968-5-21 4519 Contra Costa Mt. Diablo. 1067 Comment
  UC1120858  Arctostaphylos auriculata H. A. Jensen 1938-10-27 450 Contra Costa head of Curry Canyon Mt. Diablo Quadrangle Comment
  UC1120859  Arctostaphylos auriculata R. W. Lundh 1932-8-24 138 Contra Costa 2 mi s Mt. Diablo (Rock City); Mt. Diablo Quadrangle 502 Comment
  UC1200411  Arctostaphylos auriculata Edward Lee 1936-1-12 1714 Contra Costa w-facing slope immediately s Nortonville Comment
  UC549569  Arctostaphylos auriculata J. E. Adams 1934-10-6 852 Contra Costa Rock City Mt. Diablo Comment
  UCD162927  Arctostaphylos auriculata D. O. Burge; K. Zhukovsky 2015-6-6 1747 Contra Costa Mount Diablo. 515 Comment
  UCD50262  Arctostaphylos auriculata Roman Gankin 1968-11-14 1311 Contra Costa Ca. 300 yds. above road at Somersville. Comment
  SEINET11998374  Arctostaphylos canescens subsp. malloryi W. Knight, Knight, I. 1988-1 6478 Contra Costa Tilden Regional Park, Regional Parks Botanic Garden, originally from Iron Mt. in Shasta Co 914 Comment
  CAS-BOT-BC23598  Arctostaphylos crustacea C. Hart Merriam 1919-8-24 s.n. Contra Costa Las Trampas Peak 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-BC23599  Arctostaphylos crustacea Stephen W. Edwards 1981-1-5 1001 Contra Costa Browne's Regional Park, on ridge facing Russell Tree Farm. Comment
  UC2029045  Arctostaphylos crustacea subsp. rosei Barbara Ertter with Linda Vorobik 2000-1-9 16888 Contra Costa Las Trampas Regional Wilderness in East Bay Hills west of Danville. Comment
  CAS-BOT-BC24662  Arctostaphylos glauca Brandegee 1889-1-1 5 Contra Costa Antioch. Comment
  UC692498  Arctostaphylos glauca Mary L. Bowerman 1931-11-21 1068 Contra Costa near canyon bottom and Bilharan Mount Diablo, Donner Canyon Comment
  RSA632825  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27584 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  CAS-BOT-BC38876  Arctostaphylos manzanita subsp. laevigata L. R. Abrams 1910-10-8 4345 Contra Costa Mt. Diablo 548 Comment
  JEPS124457  Arctostaphylos manzanita subsp. laevigata Daniel Slakey with CNPS Volunteers 2015-6-29 132 Contra Costa Wall Point Rd, along a roughly 1 km stretch of road just west of Wall Point. Comment
  JEPS19875  Arctostaphylos manzanita subsp. laevigata W. L. Jepson 1922-5-23 9653 Contra Costa s slope Mt. Diablo (about halfway up) Comment
  JEPS38921  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1933-3-25 1769 Contra Costa n face of canyon Mount Diablo, Pine Canyon (near top of ridge, approached up Diablo Stock Farm Canyon) Comment
  RSA140022  Arctostaphylos manzanita subsp. laevigata H. A. Jensen 1938-10-27 451 Contra Costa Head of Curry Canyon 518 Comment
  UC549753  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-3-19 684 Contra Costa Mt. Diablo Comment
  UC692222  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1930-8-31 443 Contra Costa Dan Cook (Rock City) Canyon Mount Diablo Comment
  UC692514  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1933-3-25 1769 Contra Costa n face of canyon near top of ridge ((approached up Diablo Stock Farm Canyon, better known as Emmons Canyon)); Mount Diablo, Pine Canyon Comment
  UC692515  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1931-9-20 1043 Contra Costa little above road Mount Diablo, Fossil (Rock City) Ridge Comment
  UC692516  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1931-3-1 541 Contra Costa e meridian (w part of chaparral); Mount Diablo, Inner Black Hills Comment
  UC909832  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-3-19 671 Contra Costa Mount Diablo Comment
  POM300725  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1933-3-25 1765 Contra Costa Emmons Canyon (off Stone Valley), west fork. Comment
  UC1120869  Arctostaphylos pallida Beryl O. Schreiber 1938-9-18 2548 Contra Costa 0.5 mi ssw Round Top; Concord Quadrangle Comment
  UC1142931  Arctostaphylos pallida Beryl O. Schreiber 1938-9-18 2548 Contra Costa 0.5 mi ssw Round Top 335 Comment
  HSC93964  Arctostaphylos tomentosa subsp. crustacea C. Newberry 1994-3-12 7164 Contra Costa Huckleberry Botanic Regional Preserve, Skyline Trail 244 Comment
  JEPS46271  Arctostaphylos tomentosa subsp. crustacea W. L. Jepson 1943-6-19 20850 Contra Costa Moraga Ridge Comment
  UC1120141  Arctostaphylos tomentosa subsp. crustacea R. W. Lundh 1933-2-1 200 Contra Costa 1/2 mi sw Pinehurst; Concord Quadrangle Comment
  UC120093  Arctostaphylos tomentosa subsp. crustacea R. W. Lundh 1933-3-4 210 Contra Costa 1/2 mi sw Pinehurst; Concord Quadrangle Comment
  UC549410  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 622 Contra Costa Moraga Ridge Comment
  UC549411  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 626 Contra Costa Moraga Ridge Comment
  UC549443  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-2-15 608 Contra Costa Moraga Ridge Comment
  UC909879  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 631 Contra Costa Moraga Ridge Comment
  CDA31089  Argyranthemum foeniculaceum D. G. Kelch, Dick Moe, Doug Stone 2001-6-3 01 .-23 Contra Costa East Bay.; Brooks Island. Comment
  JEPS25152  Argyranthemum foeniculaceum G. Thomas Robbins with John Weiler 1959-5-23 4022 Contra Costa nw extension Brooks Island (on breakwater (partly natural, partly man-made)); San Francisco Bay, Richmond Comment
  JEPS111634  Aristolochia californica D. G. Kelch 2003-2-7 03 .34 Contra Costa McEwen Road 95 Comment
  JEPS75532  Aristolochia californica P. F. Yorks 1974-2-10 109 Contra Costa n of Briones Reservoir (1.6 km s of Bear Creek Road on Hampton Road in Hampton Road Natural Reserve); Hampton Road Natural Reserve Comment
  UC6151  Aristolochia californica Harley P. Chandler 1901-3-22 866 Contra Costa Port Costa San Francisco Bay Region, Port Costa Comment
  JEPS32457  Aristolochia californica Mrs. L. J. Barker 1932-3-27 Contra Costa Bear Valley rd. just over the divide on Pinole side Orinda Comment
  CAS-BOT-BC17386  Armoracia rusticana Walter Knight; Joanne Dean 1978-8-14 3121 Contra Costa Browns Island. 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
  UC29607  Arnica discoidea Brewer 1862-1 1302 Contra Costa Comment
Read comments
Jan 20 2011
  CAS-BOT-BC82594  Arnica lanceolata subsp. prima H. M. Hall; H. P. Chandler 1900-7-1 649 Contra Costa South Fork of San Joaquin River Comment
  SEINET11853227  Artemisia californica M. T. Doutt 1930-1 105 Contra Costa Marsh Creek Comment
  CDA42352  Artemisia douglasiana D. G. Kelch, Vince Guise 2012-7-26 12 .238 Contra Costa Wildcat Canyon Park, Alvarado Unit. Comment
  UCD137837  Asarum caudatum Richard W. Neil 1941-3-24 4 Contra Costa Redwood Park, Redwood Canyon. 182 Comment
  JEPS47810  Asclepias californica Frank A. Leach 1918-12-1 Contra Costa hill 1 1/2 mi sw Upper Pine Canyon; Mt. Diablo Comment
  RSA0031304  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. 427 Comment
  UC141712  Asclepias californica C. F. Baker 1903-4-28 2871 Contra Costa Marsh Creek Mt. Diablo Comment
  UC22951  Asclepias californica State Survey 1890-1 1123 Contra Costa region 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
  SEINET10580308  Asclepias californica subsp. greenei Charles F. Baker 1903-4-28 Baker 2871 Contra Costa Marsh Creek, Mt. Diablo Comment
  UC691840  Asclepias fascicularis Mary L. Bowerman 1932-11-25 1667 Contra Costa Silver Spring Mount Diablo Comment
  UC691841  Asclepias fascicularis Mary L. Bowerman 1935-6-28 3162 Contra Costa Old Government Trail Mount Diablo 518 Comment
  UCSB22010  Asclepias fascicularis Olson, Glen 1968-7-5 Contra Costa 0.1 mile off the end of Broadmore Court, 0.2 mile north of its junction with St. Mary's Rd. Comment
  SD129705  Asclepias vestita Donald G. Nelson 1937-4-24 520 Contra Costa On Marsh Creek Road, between Byron and Clayton. Comment
  JEPS87983  Asparagus asparagoides Barbara Ertter 1991-5-12 9817 Contra Costa sw corner El Cerrito (along old R.R. right-of-way between bay & salicornia marsh, Point Isabel Regional Shoreline, on San Francisco Bay); San Francisco Bay Comment
  JEPS99535  Aspidotis californica Mary L. Bowerman 1979-5-12 Contra Costa Mount Diablo, North Peak trail between summit rd. and Devil's Pulpit. Comment
  CDA1505  Aster chilensis D. G. Kelch 1998-10-13 s.n. Contra Costa Carquinez Strait; Base of Elkhorn Creek, E of Crockett. Comment
  RSA0028278  Aster exilis Barbara Ertter, CNPS 1990-9-16 9645 Contra Costa Bethel Island NE of Brentwood, E end of Gateway Road at W edge of Franks Tract State Recreation Area. Comment
  CDA15295  Aster lentus Amy Hiss 1998-10-14 s.n. Contra Costa Sacramento Delta; Marina Fishing Pier at northernmost limit of city of Antioch. Comment
  CDA31373  Aster radulinus D. G. Kelch 2006-8-11 6 .375 Contra Costa Carquinez Strait.; Top of Edward s Canyon. Crockett. Comment
  CDA10358  Aster subulatus var. ligulatus D. G. Kelch 2006-9-15 6 .472 Contra Costa Carquinez Strait; Martinez. Waterfront Rd. Marina Dr. , 100 m. W of Pacheco Slough. Comment
  UC83459  Astragalus asymmetricus Katharine Brandegee June 1891 Contra Costa Antioch Comment
  CAS-BOT-BC180575  Astragalus asymmetricus M. K. Curran 1885-5-30 s.n. Contra Costa Marsh Creek, near Mt. Diablo Comment
  UC83444  Astragalus didymocarpus Katharine Brandegee May 1886 Contra Costa Antioch Comment
  CAS-BOT-BC178473  Astragalus gambelianus Lincoln Constance; Carl W. Sharsmith; Howard S. Reed 1940-4-27 2572 Contra Costa Pine Canyon, base of Mount Diablo 304 Comment
  JEPS112423  Astragalus gambelianus Dean G. Kelch and Andrew G. Murdock 2005-4-2 05 .107 Contra Costa Alhambra Valley; county: Contra Costa; EBMUD land. North of intersection of Alhambra Valley Road and Castro Ranch Road. Comment
  UCSB3011  Astragalus gambelianus Constance, Lincoln; Sharsmith, Carl; Reed, Howard 1940-4-27 Contra Costa Pine Canyon, base of Mount Diablo 304 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
  SEINET947942  Astragalus tener Peter H. Raven 1957-1 10586 Contra Costa 3.0 miles south of Byron. Comment
  UC691075  Athysanus pusillus Mary L. Bowerman 1935-4-27 2887 Contra Costa Ridge w of Pioneer Road ((w of Old Stage Road)) 853 Comment
  UC691076  Athysanus pusillus Mary L. Bowerman 1931-2-28 525 Contra Costa Fossil Ridge near Rock City (Mount Diablo); , Fossil Ridge 518 Comment
  UCD97866  Atriplex Robert E. Preston; Eva Buxton 1994-8-4 676 Contra Costa east end of Briones Valley, west of Marsh Creek Reservoir. 60 Comment
  UC219362  Atriplex coronata H. M. Hall 1922-5-6 11802 Contra Costa 8 mi w Byron (e of Mt. Diablo); , w of Byron Comment
  CAS-BOT-BC168541  Atriplex coronata R. E. Frenkel 1964-7-10 648 Contra Costa On Balfour Road, 0.2 miles west of Bixler Road 6 Comment
  JEPS99040  Atriplex coronata Robert E. Preston & Eva Buxton 1994-8-4 618 Contra Costa 0.9 mi NW Marsh Creek Reservoir. 76 Comment
  CDA9500  Atriplex depressa D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .227 Contra Costa Byron Airport. Comment
  RSA293440  Atriplex joaquinana Reino Alava 1958-6-6 2136 Contra Costa 3 miles south of Byron, between the highway south and the railroad track Comment
  RSA603504  Atriplex joaquinana Carol W. Witham 1994-8-7 588 Contra Costa East of Bixler Road between Marsh Creek road and Point of Timber Road 3 Comment
  UC1601683  Atriplex joaquinana Katharine Brandegee 1907-5-3 Contra Costa between Antioch Marsh Creek; between Antioch and Marsh Creek Comment
  JEPS41046  Atriplex leucophylla Rimo Bacigalupi and L. R. Heckard 1965-5-11 9071 Contra Costa on strand at n end Brooks Island (in San Francisco Bay sw of Richmond); San Francisco Bay, sw of Richmond, n end Brooks Island Comment
  UCD158700  Atriplex prostrata James A. Neilson Jr. 1972-10-22 3509 a Contra Costa Walnut Creek drainage. Elevation estimated in Google Earth by label maker. 0 Comment
  RSA299534  Atriplex rosea Walter Knight 1978-8-20 3232 Contra Costa Along Frederickson Lane, Contra Lowa Regional Park. Comment
  UC2029106  Atriplex semibaccata Barbara Ertter 1990-9-30 9655 Contra Costa SE of Hilltop Mall in N Richmond, near Day's Inn. 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
  CDA19824  Avena fatua P. Akers 2002-5-11 s.n.- 1 a Contra Costa Northern California; Mt Diablo Rd. 205 Comment
  CDA19825  Avena fatua P. Akers 2002-5-11 s.n.- 2 a Contra Costa Northern California; Mt Diablo Rd. 205 Comment
  SD120703  Avena fatua G. D. Barbe 1983-5-22 4081 Contra Costa on hillside along fire road north of Juniper Campground, Mount Diablo State Park 878 Comment
  UC697125  Avena fatua Mary L. Bowerman 1931-5-7 809 Contra Costa North Peak Mount Diablo Comment
  SEINET8718193 Image available Avena sativa Laura Zeller 1965-1 81 Contra Costa Just E of the University of California Botanical Garden. Comment
  CDA37435  Baccharis glutinosa D. G. Kelch, Mike Perlmutter 2011-9-23 11 .753 Contra Costa Immediately north of Discovery Bay. Comment
  JEPS111734  Baccharis glutinosa D. G. Kelch 2004-9-2 04 .337 Contra Costa Pacheco Marsh Marsh east of Martinez and I-680 and east of lone tree Marsh. Rhizomatous herb in marsh, 1 m tall 5 Comment
  UC651295  Baccharis salicifolia subsp. salicifolia Ira L. Wiggins 1930-4-18 4600 Contra Costa Levee Parks, near ferry Jersey Island Comment
  UC36778  Balsamorhiza deltoidea J. Burtt Davy 1895-4-7 910 Contra Costa Antioch Comment
  CAS-BOT-BC16379  Barbarea orthoceras John Thomas Howell 1976-5-20 s.n. Contra Costa Mount Diablo. Below Juniper Camp. 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
  UC691249  Barbarea orthoceras Mary L. Bowerman 1933-4-9 1841 Contra Costa Donner Canyon, west fork: By trail. Comment
  UC691258  Barbarea orthoceras Mary L. Bowerman 1933-4-22 1899 Contra Costa w of Cave Point (s-face); Mount Diablo, Inner Black Hills Comment
  UC1618272  Bassia hyssopifolia Barbara Ertter, B. Olson, D. Lake, L. Hosley and A. Youngson 1991-10-20 10885 Contra Costa just w Antioch marina (Dow Wetlands Preserve); Dow Wetlands Preserve Comment
  RSA666351  Bassia hyssopifolia Barbara Ertter, Brad Olson, Lynne Hosley, A. Youngson 1991-10-20 10885 Contra Costa Dow Wetlands Preserve, just W of Antioch marina. Comment
  CDA32928  Bellardia trixago D. G. Kelch 2009-5-24 9 .3 Contra Costa Carquinez Strait; S of Ozol, W/SW of Martinez. Comment
  JEPS11296  Bellardia trixago Joseph P. Tracy 1921-5-17 5566 Contra Costa near Martinez; Northern Coast Ranges 30 Comment
  UCD158710  Beta vulgaris subsp. maritima James A. Neilson Jr. 1972-11-2 3613 a Contra Costa Walnut Creek drainage. Elevation estimated in Google Earth by label maker. 1 Comment
  UC912220  Bidens frondosa Herbert L. Mason 1929-9-21 5446 Contra Costa 2.6 mi ne of Byron (Borden Highway); Borden Highway Comment
  UC894031  Bidens laevis Lewis S. Rose 1938-10-28 38311 Contra Costa Byron 3 Comment
  NY30996  Blennosperma californicum R. C. F. Bacigalupi 1957-3-27 5761 Contra Costa At junction of Lone Tree Way and Hillcrest Ave. (rd.), about 0.5 mile west of Lone Tree School 39.3 Comment
  JEPS104714  Blennosperma nanum John L. Morrison 1937-3-6 1972 Contra Costa low hills S of Antioch Comment
  CAS-BOT-BC100703  Blennosperma nanum var. nanum M. K. C. 1886-5-1 s.n. Contra Costa Antioch Comment
  JEPS25358  Blennosperma nanum var. nanum Rimo Bacigalupi with Paul C. Hutchinson and John Weiler 1959-3-19 6969 Contra Costa 1mi se, e of Byron Road Byron 6 Comment
  UC1540459  Blennosperma nanum var. nanum Annetta Carter 1937-3-28 1225 Contra Costa 15 mi e, along Marsh Creek Road Concord 152 Comment
  UC762545  Blennosperma nanum var. nanum R. F. Hoover 1938-2-27 2784 Contra Costa Danville Comment
  CAS-BOT-BC127914  Blepharizonia laxa R. F. Hoover 1937-9-2 2710 Contra Costa 1 mi. s. of Pittsburg Comment
  CAS-BOT-BC100334  Blepharizonia plumosa Joanne Dean 1978-9-17 s.n. Contra Costa Byron Comment
  CAS-BOT-BC100341  Blepharizonia plumosa Miss H. A. Walker 1916-8-28 3922 Contra Costa Los Medanos, near Antioch Comment
  POM118273  Blepharizonia plumosa Harriet Ann Walker 1916-8-28 3922 Contra Costa Los Medanos, near Antioch Comment
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Dec 16 2012
  UC762568  Blepharizonia plumosa Robert F. Hoover 1937-9-2 2711 Contra Costa 1 mi w of Antioch Comment
  JEPS53003  Boechera breweri subsp. breweri E. L. Greene 1894-5-13 Contra Costa Mt. Diablo Comment
  SBBG2385  Boechera breweri subsp. breweri H. and M. Dearing 1940-3-20 4125 Contra Costa near summit of Mt Diablo Comment
  UC10111  Boechera breweri subsp. breweri H. P. Chandler and H. M. Hall 1901-4-5 Contra Costa Mt. Diablo summit Mt. Diablo Comment
  CAS-BOT-BC15960  Boechera breweri subsp. breweri E. W. Hicks 1917-3-24 111 Contra Costa Mount Diablo. Western slope of the mountain. 1067 Comment
  SEINET5340097  Boechera breweri subsp. breweri W. C. Blasdale 1896-2-28 s.n. Contra Costa Mt. Diablo Comment
  UCD102382  Boechera breweri subsp. shastaensis Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 1060 Comment
  UC566857  Bowlesia incana H. L. Mason 1928-4-29 4419 Contra Costa Mount Diablo, Sycamore Canyon Sycamore Canyon; Mount Diablo, Sycamore Canyon Comment
  POM300701  Bowlesia incana Mary L. Bowerman 1935-5-1 2937 Contra Costa North Road 2 miles from entrance, across the creek from the road, Mount Diablo. 183 Comment
  UC1819038  Brachypodium distachyon Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14244 Contra Costa South side Mount Diablo, Sloan Road between Curry Point and Curry Canyon, roadside in partial shade of oak forest on north-facing slope. 487 Comment
  UCD164653  Brassica nigra Henry House 1995-5-20 1995- 22 Contra Costa Approximately 50 m from Walnut Blvd, about 1.25 km south of Marsh Creek Road. 30 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
  UC1134002  Brodiaea terrestris subsp. terrestris C. M. Belshaw 1936-5-9 2079 Contra Costa 1.5 mi e Mulligan Hill; Mt. Diablo Quad. 152 Comment
  UC407032  Brodiaea terrestris subsp. terrestris Ira L. Wiggins 1930-4-17 4573 Contra Costa near Byron Comment
  UC1948971  Bromus carinatus William J. Ferlatte, L. Maynard Moe 1970-4-27 1237 Contra Costa San Francisco Bay: Red Rock Island Comment
  UCD58300  Bromus carinatus G. Thomas Robbins 1959-4-18 3991 Contra Costa Along Western Drive. Near and north of Pt. Richmond. Western base of Potrero Hills. Richmond. 4 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
  CAS-BOT-BC156066  Bromus diandrus Mary L. Bowerman 1935-4-26 2921 Contra Costa Mount Diablo. Summit. 1158 Comment
  POM300672  Bromus diandrus Mary L. Bowerman 1932-4-27 1366 Contra Costa Oyster Ridge, south face of ridge west of Riggs Canyon Comment
  UC50599  Bromus diandrus Jos. Burtt Davy 1897-4-17 Contra Costa Point Isabel Comment
  UCD36912  Bromus diandrus Beecher Crampton 1956-5-14 3378 Contra Costa 4.6 miles south of city of Antioch, on Empire Mine Drive, at head of Horse Valley. Comment
  CAS-BOT-BC156065  Bromus diandrus Mary L. Bowerman 1935-5-1 2935 Contra Costa Mount Diablo. North Road 2 miles from entracne. 182 Comment
  CAS-BOT-BC155470  Bromus hordeaceus Alice Eastwood 1921-4-18 10263 Contra Costa Antioch. Comment
  POM363884  Bromus hordeaceus Anstruther Davidson 1930-07 3244 Contra Costa Mt. Diablo. Comment
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Mar 6 2011
  CAS-BOT-BC155472  Bromus hordeaceus P. F. Knowles 1941-1-1 B 83 Contra Costa Briones Hills. Davis. Greenhouse. Comment
  SEINET10514555  Bromus hordeaceus Knowles 1941-1 KNOWLES 87 -10 Contra Costa Briones Hills, cultivated, greenhouse. Comment
  CAS-BOT-BC162451  Bromus laevipes Leon E. Pavlick; L. R. Abrams 1921-5-25 8041 Contra Costa At spring 4.25 miles from summit of Mount Diablo. Comment
  POM300674  Bromus madritensis Mary L. Bowerman 1935-5-16 2991 Contra Costa Russelmann Park, at end of road Comment
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Aug 11 2011
  UCD58960  Bromus madritensis Beecher Crampton 1966-4-26 7664 Contra Costa Ca. 2.5 miles west of Martinez. On the road to Crockett. Comment
  UCD58961  Bromus madritensis Beecher Crampton 1956-5-14 3401 Contra Costa Southeast of Mt. Diablo. 640 Comment
  CAS-BOT-BC162352  Bromus madritensis Mary L. Bowerman 1935-5-16 2991 Contra Costa Mount Diablo. Russelman Park, at end of road. Comment
  UC691209  Bromus madritensis subsp. madritensis Mary L. Bowerman 1935-5-16 2986 Contra Costa Mount Diablo, Russelman Park Russelman Park; Mount Diablo, Russelman Park 381 Comment
  UC691210  Bromus madritensis subsp. madritensis Mary L. Bowerman 1933-5-9 2051 Contra Costa Mount Diablo, Stage Road Canyon Stage Road Canyon; Mount Diablo, Stage Road Canyon 731 Comment
  UC677559  Bromus madritensis subsp. rubens A. A. Beetle 1942-3-22 2930 Contra Costa Taber Island, small Island off north west side of Brooks Island, San Francisco Bay, Contra Costa County. Comment
  UC677567  Bromus racemosus P. F. Knowles B 72 Contra Costa 1 mi w of Rodeo Comment
  UCD59614  Bromus rubens Beecher Crampton 1956-5-14 3410 Contra Costa Southern boundary of Mt. Diablo State Park. 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
  UC1103346  Bromus trinii J. P. Tracy 1900-5-24 613 Contra Costa San Francisco Bay Region, Point Richmond Point Richmond; San Francisco Bay Region, Point Richmond 3 Comment
  UC606723  Bromus trinii Edward Lee 1936-4-19 1970 Contra Costa San Francisco Bay, Red Rock Red Rock; San Francisco Bay, Red Rock Comment
  UC691132  Bromus trinii Mary L. Bowerman 1932-5-6 1428 c Contra Costa Mount Diablo, Mitchell Canyon Mitchell Canyon; Mount Diablo, Mitchell Canyon 251 Comment
  UC1980316  Calamintha sylvatica subsp. ascendens Barbara Ertter with David Gowen 2011-10-6 20918 Contra Costa Tilden Regional Park in hills east of Berkeley; lower Vollmer Peak Trail southeast of Big Spring picnic area Comment
  CAS-BOT-BC438372  Calandrinia ciliata Mary L. Bowerman 1939-5-2 3741 Contra Costa Mount Diablo. By road to Barbecue Terrace (off South Road) 563 Comment
  JEPS68965  Calandrinia ciliata Edward Lee 1935-3-10 1298 Contra Costa Nortonville; (s watershed of Kirker Creek) Comment
  CAS-BOT-BC438365  Calandrinia ciliata unspecified No date on label s.n. Contra Costa Antioch Comment
  UC570769  Callitriche marginata H. L. Mason 1932-3-20 6852 Contra Costa Deer Valley; Briones Road Comment
  UC691992  Calochortus Mary L. Bowerman 1933-5-22 2169 Contra Costa e of Knobcone Point (on n-face (2 small ridges w of n ridge)); Mount Diablo, Inner Black Hills Comment
  UC768643  Calochortus albus R. F. Hoover 1939-4-26 4067 Contra Costa Head of Markley Canyon (w branch) Markley Canyon Comment
  UC2028218  Calochortus argillosus Barbara Ertter with Christopher Baysdorfer 1998-5-10 16128 Contra Costa West-center Lime Ridge Open Space northwest of Mount Diablo. Comment
  UC2028252  Calochortus argillosus Barbara Ertter, Mary Bowerman, Lisa Schultheis 1998-8-21 16395 Contra Costa Southwest base of Mount Diablo, South Gate Road 0.7 miles from park boundary. Comment
  UC2029142  Calochortus argillosus Barbara Ertter with Alan Prather 2003-6-7 18193 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, Valley View Trail at NE corner of park. Comment
  UC2027929  Calochortus luteus Barbara Ertter with Dorothy Frantz 2001-5-10 17640 Contra Costa Diablo Foothills Regional Park, Pine Creek south of Castle Rock Recreation Area. Comment
  UC2028297  Calochortus luteus Barbara Ertter with Dan Norris 1998-6-18 16214 Contra Costa Rock City area on south side of Mount Diablo, trail to Artist Point. Comment
  CAS-BOT-BC132506  Calochortus pulchellus John Thomas Howell 1940-4-21 15397 Contra Costa Pine Canyon, Mt. Diablo Comment
  RSA215950  Calochortus pulchellus D. E. Breedlove 1970-4-18 17425 Contra Costa At the north edge of Lafayette above Laurel Drive 244 Comment
  SBBG33410  Calochortus pulchellus A. D. E. Elmer -Jun-1903 4631 Contra Costa Mount Diablo Comment
  UC1134509  Calochortus pulchellus C. M. Belshaw 1936-5-12 2104 Contra Costa 1 mi s Tassajero Rd. summit; Mt. Diablo 304 Comment
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Dec 29 2006
  UC3462  Calochortus pulchellus W. H. Brewer 1862-5-26 1163 Contra Costa near Mount Diablo Comment
  CAS-BOT-BC132495  Calochortus pulchellus Elizabeth McClintock; Wayne Roderick 1967-5-30 s.n. Contra Costa Marsh Creek Road, n. base of Mt. Diablo 76 Comment
  UCD67580  Caltha palustris E. Dean; with Thomas Starbuck 1993-5-1 359 Contra Costa Oakland hills, canyon E of Skyline Blvd., growing in stream that separates Huckleberry Preserve from Sibley Volcano Park, along Skyline Trail, near old homestead site. Comment
  CAS-BOT-BC270072  Calycadenia multiglandulosa H. M. Hall 1916-8-16 10274 Contra Costa Horse Valley, 9 km S of Antioch Comment
  UC88982  Calycadenia multiglandulosa K. Brandegee 1884-7-1 Contra Costa Antioch Comment
  UCD129979  Calycadenia truncata Ann F. Johnson 1978-8-19 s.n. Contra Costa Mt. Diablo State Park. Comment
  POM301048  Calycadenia truncata subsp. truncata Mary L. Bowerman 1931-9-12 1040 Contra Costa Mitchell Canyon 838 Comment
  CAS-BOT-BC418628  Calystegia R. K. Brummitt; B. Ertter 2012-6-17 22061 Contra Costa Berkeley Hills, Tilden Park, Seaview Trail north of Vollmer Peak Comment
  CAS-BOT-BC224751  Calystegia malacophylla subsp. pedicellata John Thomas Howell 1942-5-24 16964 Contra Costa Near Deer Flat, Mt. Diablo Comment
  UC23184  Calystegia malacophylla subsp. pedicellata Edw. L. Greene 1892-6-20 Contra Costa Mt. Diablo Comment
  RSA760670  Calystegia purpurata William J. Ferlatte, L. Maynard Moe 1970-4-27 1236 Contra Costa San Francisco Bay, Red Rock Island. Comment
  UCD126157  Calystegia sepium Malcolm A. Nobs; S. Galen Smith 1949-7-8 941 Contra Costa Otto's Black Bass Resort, 4 miles N of Kingston. Comment
  UC1618171  Calystegia sepium subsp. binghamiae Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10867 Contra Costa Dow Wetlands Preserve, just W of Antioch marina; along levee at water's edge, accessed from marina 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
  UC1794983  Calystegia subacaulis subsp. subacaulis R. K. Brummitt and B. Ertter 1998-5-6 19784 Contra Costa Mt. Diablo, NW side, path to Mitchell's Rock 300 Comment
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Aug 3 2013
  UC2028171  Calystegia subacaulis subsp. subacaulis Barbara Ertter 1998-5-3 16069 Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, between Wall Point and Secret Trail junction. Comment
  UC1084506  Camissonia campestris subsp. campestris G. Thomas Robbins 1940-5-19 328 Contra Costa e Antioch (slope above river); San Joaquin River Comment
  UC198869  Camissonia campestris subsp. campestris Chesnut and Drew 1887-4-18 Contra Costa Antioch Comment
  UC2070452  Camissonia contorta Barbara Ertter with Dan Norris 2001-4-8 17599 Contra Costa Lime Ridge Open Space east of Walnut Creek. Comment
  UC1784913  Camissoniopsis hirtella Barbara Ertter with Mary Bowerman 1994-6-19 12842 Contra Costa Mount Diablo State Park E of Walnut Creek; Muir Picnic Area on Summit Road 1005 Comment
  JEPS44361  Camissoniopsis intermedia W. L. Jepson 1921-11-19 9520 Contra Costa Mt. Diablo Comment
  JEPS99558  Camissoniopsis intermedia Mary Bowerman 1995-5-28 Contra Costa Mount Diablo, knoll on N side of Wall Point Trail 1/2 encircled on W and N sides by road from Macedo Ranch to Pine Pond. 304 Comment
  UC20492  Camissoniopsis intermedia F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  UC635400  Camissoniopsis intermedia H. L. Mason 1928-4-29 4436 Contra Costa Sycamore Canyon Mount Diablo (s slope of mt.) Comment
  UC692450  Camissoniopsis intermedia Mary L. Bowerman 1933-5-21 2157 a Contra Costa head of Grape Spring Gully Mount Diablo Comment
  UC692451  Camissoniopsis intermedia Mary L. Bowerman 1932-4-27 1379 Contra Costa canyon w Riggs Canyon (s face of ridge); Mount Diablo, Oyster Ridge 335 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
  UC35344  Camissoniopsis micrantha Chesnut and Drew 1889-4-18 Contra Costa Sand Hills Antioch Comment
  CAS-BOT-BC266436  Campanula exigua Alice Eastwood 1915-5-30 4452 Contra Costa Mount Diablo Comment
  UC691518  Campanula exigua Mary L. Bowerman 1935-5-25 3078 Contra Costa rock slide in rock gorge; Mount Diablo, Rhine Canyon 914 Comment
  CAS-BOT-BC266435  Campanula exigua R. Bacigalupi 1946-5-30 2781 Contra Costa Juniper Camp, W shoulder of Mount Diablo Comment
  JEPS102903  Campanula griffinii Barbara Ertter with M. L. Bowerman, L. Schultheis & K. Hintsa 1995-10-22 14535 Contra Costa road junction of Three Springs trail on NE side of mountain Mount Diablo 365 Comment
  JEPS108385  Campanula griffinii David Gowen 2005-4-25 263 Contra Costa Mt. Diablo State Park. South east end of Prospector's Gap Rd., ca 0.3 mile NW of its junction with Ray Morgan Rd. Small area of serpentine outside of the park boundary. Comment
  UC2029116  Campanula griffinii Barbara Ertter with D. Gowen, J. Ginochio, M. Park, S. Matson, A. Moore, S. D'Alcamo, J. Greenhouse, K. Kersh and J. Gawthrup 2005-4-8 18570 Contra Costa Long Ridge on west flank of Mt. Diablo, springs and pond on Ginochio property near park boundary. Comment
  UC1789147  Campsis radicans Barbara Ertter 1998-5-10 16370 Contra Costa southeast edge of Antioch Marina. 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
  JEPS111869  Cardamine californica D. G. Kelch 2005-2-28 05 .9 Contra Costa Vaca Canyon Vaca Canyon Alhambra Valley Road Bay Forest road cut with Arbutus 165 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
  UC691077  Cardamine californica Mary L. Bowerman 1930-6-10 303 Contra Costa Mount Diablo Comment
  UC691085  Cardamine californica Mary L. Bowerman 1931-2-8 504 Contra Costa Mineral Spring , Mineral Spring (Mount Diablo) 396 Comment
  UC2029039  Cardamine oligosperma Barbara Ertter 2000-3-19 16897 Contra Costa Southwest side of Mount Diablo, Stage Road along Pine Creek, ca 1/2 mile above Pine Pond. Comment
  UC2070559  Cardamine oligosperma var. oligosperma Barbara Ertter 2003-4-9 18140 Contra Costa Shell Ridge Open Space on west base of Mount Diablo, Indian Creek below Fossil Hill Trail crossing. Comment
  CAS-BOT-BC281737  Carduus pycnocephalus John Thomas Howell 1933-5-14 11246 Contra Costa Hills E of St Mary's College Comment
  UC691375  Carduus pycnocephalus subsp. pycnocephalus Mary L. Bowerman 1935-5-25 3079 Contra Costa w road, 2.4 mi from entrance Shepherd's Camp; Mount Diablo 304 Comment
  CDA9484  Carduus tenuiflorus D. G. Kelch, Abigail Moore, Michael Park 2007-5-1 7 .209 Contra Costa Byron Airport. Comment
  CAS-BOT-BC281803  Carduus tenuiflorus David Keck 1941-6-5 5312 Contra Costa Berkeley Hills, Fish Creek Rd, 0.25 mile W of E portal of Broadway Tunnel 335 Comment
  CAS-BOT-BC19205  Carex barbarae Walter Knight 1967-7-9 s.n. Contra Costa Tilden Park. Botanic Garden. Comment
  UC70619  Carex barbarae Jos. Burtt Davy 1899-4-19 7846 Contra Costa Glorietta inner coast range mountains Comment
  RSA153458  Carex barbarae G. Thomas Robbins 1959-5-16 4008 Contra Costa Just north of Pt. Orient, Potrero Hills, overlooking San Francisco Bay, Richmond. Comment
  UC691962  Carex densa Mary L. Bowerman 1934-4-21 2531 Contra Costa at junction of North and South Roads Canyon Nook Comment
  UC70611  Carex densa Jos. Burtt Davy 1899-4-19 7843 Contra Costa Glorietta; Inner Coast Range Mountains Comment
  UC2070636  Carex densa Barbara Ertter 2002-9-13 18070 Contra Costa East end Olympia Trail at Dunn Creek crossing, NE base of Mount Diablo near intersection of Marsh Creek Road and Morgan Territory Road. Comment
  POM300640  Carex dudleyi Mary L. Bowerman 1935-5-16 3001 Contra Costa Mt. Diablo: Russelman Park road at Gregory Ranch junction. 290 Comment
  UC1026409  Carex globosa John Thomas Howell 1953-3-15 28923 Contra Costa Rock City Mt. Diablo Comment
  UC2028524  Carex globosa Barbara Ertter 1997-11-1 15880 Contra Costa South side Mount Diablo, near Balancing Rock on Knobcone Point Road. Comment
  JEPS99504  Carex nudata Mary L. Bowerman Apr 1977 Contra Costa Mount Diablo, Sycamore Creek Canyon. 243 Comment
  CAS-BOT-BC119426  Carex obnupta N. Stone 1941-4-5 23 Contra Costa Lake Anza, Wildcat Canyon. 198 Comment
  UC1949084  Carex pendula Barbara Ertter with Jim Dunne, David Gowen, Lech Naumovich 2009-12-3 19797 Contra Costa upper (south) end of San Pablo Dam Reservoir northwest of Orinda Comment
  UC2031466  Carex praegracilis Barbara Ertter with Brad Olson 1991-11-10 10886 Contra Costa Point San Pablo in extreme west of Richmond Comment
  CAS-BOT-BC117548  Carex serratodens Lewis Samuel Rose 1935-5-16 35163 Contra Costa Mt. Diablo. Comment
  POM222732  Carex serratodens L. S. Rose 1935-5-16 35163 Contra Costa Mt. Diablo. Comment
  UC2029197  Carex serratodens Barbara Ertter with Michelle Lee et al. 2002-6-29 17964 Contra Costa Lower Curry Creek on east side of Mount Diablo, private property just above Morgan Territory Comment
  UC692012  Carex serratodens Mary L. Bowerman 1935-5-8 2969 Contra Costa 2 mi <West> entrance (West road, gully w of chaparral); Mount Diablo 213 Comment
  POM300642  Carex serratodens Mary L. Bowerman 1938-5-28 3640 Contra Costa Patens Spring (North Road). Mount Diablo. 549 Comment
  POM300644  Carex serratodens Mary L. Bowerman 1938-6-14 3683 Contra Costa Rocky Point Spring, Mount Diablo. 701 Comment
  UC1818878  Carex serratodens Barbara Ertter, Kristin Ertter 1995-7-11 14487 Contra Costa Partial shade of willows, mudflat around Pine Pond inlet. 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
  UC8054  Carex subbracteata Brewer 1862-4-30 1012 Contra Costa Walnut Creek Comment
  CDA34479  Carex subbracteata D. G. Kelch 2006-3-18 6 .106 Contra Costa 2 km N-NW of Orinda Village. NW of corner of San Pablo Dam Rd & Bear Valley Rd. 0 Comment
  RSA0029049  Carex subbracteata Barbara Ertter 1999-3-21 16491 Contra Costa NW corner of Miller Knox Regional Shoreline, Potrero Hills SW of Richmond. Abandoned trail on north side of crest. Comment
  JEPS111902  Carex tumulicola D. G. Kelch 2005-3-24 05 .69 Contra Costa Chevy's Hill 57 Comment
  CAS-BOT-BC115559  Carex tumulicola Walter Knight; Irja Knight 1967-7-9 2067 Contra Costa Regional Parks Botanic Cargen. Comment
  UC2029203  Carex tumulicola Barbara Ertter 1999-7-17 16770 Contra Costa Tilden Regional Park, trail to Jewel Lake paralleling Wildcat Creek Comment
  OBI13975  Carpenteria californica Neil Havlik 1968-5-19 201 Contra Costa Tilden Botanical Garden, Charles Lee Tilden Regional Park, E of Berkeley Comment
  CDA20549  Carthamus creticus R. Fonseca 2005-6-2 PDR 1327561 Contra Costa San Francisco Bay Area; 1171 Chistie Rd, Martinez. 0 Comment
  HSC87801  Castilleja affinis Jennifer Roth 1979-4-29 35 Contra Costa Clayton, Russleman Park Rd. off March Creek Rd. Concord Mt. Diablo Trail Ride Association grounds. 335 Comment
  UC765541  Castilleja affinis subsp. affinis R. F. Hoover 1938-5-4 3346 Contra Costa peak e of Tassajero Creek 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
  JEPS19401  Castilleja densiflora subsp. densiflora G. Thomas Robbins 1937-4-17 134 Contra Costa near Point Richmond Comment
  UCD32379  Castilleja exserta Beecher Crampton 1950-4-16 514 Contra Costa road from San Pablo to Giant, along RR. Property. 22 Comment
  JEPS15607  Castilleja exserta subsp. exserta R. Bacigalupi and G. Thomas Robbins 1955-5-4 4972 Contra Costa e outskirts Concord (field along Treat Lane, in Clayton Valley); Clayton Valley, Concord 60 Comment
  JEPS15165  Castilleja foliolosa R. C. Wilson 1935-3-14 136 Contra Costa Head of Sycamore Creek; Mt. Diablo Quad. 365 Comment
  JEPS15184  Castilleja rubicundula subsp. lithospermoides C. M. Belshaw 1936-5-11 2095 Contra Costa 5.25 mi e Danville; Mt. Diablo Quad. 289 Comment
  UC191001  Castilleja wightii Katharine Brandegee Contra Costa Rodeo 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
  POM11961  Caulanthus lasiophyllus var. rigidus Katherine Brandegee s.n. Contra Costa Byron Hot Springs. Comment
  RSA15450  Ceanothus cuneatus Alice Eastwood, John T. Howell 1936-4-19 s.n. Contra Costa Nortonville. Comment
  PASA1643  Ceanothus cuneatus Annetta Carter 1929-3-31 Contra Costa Hills north of Mt. Diablo, near Clayton Comment
  UC1070938  Ceanothus cuneatus var. cuneatus H. S. Yates 1936-3-14 5363 Contra Costa 2.5 mi sw Round Valley; Mt. Diablo quad 457 Comment
  UC80011  Ceanothus cuneatus var. cuneatus G. W. Dunn 1892-3-12 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC51496  Ceanothus oliganthus var. sorediatus Mary L. Bowerman 1930-6-22 365 Contra Costa Mitchell Canyon: North slope Comment
  CHSC24694  Ceanothus oliganthus var. sorediatus G. Strang 1976-4-17 15 Contra Costa 2 .7 mi w of Canyon school on Pinehurst Rd. on se facing bank. 121 Comment
  RSA153399  Centaurea calcitrapa T. C. Fuller 1961-9-13 7000 Contra Costa Fencerow of irrigated pasture, Hwy. J4, about 4 miles SE of Byron Comment
  UC2013017  Centaurea calcitrapa Barbara Ertter with Laura Fujii 1990-7-21 9400 Contra Costa Briones Regional Park, Briones Hills W of Pleasant Hill, weedy field along Homestead Valley trail. Comment
  OBI16865  Centaurea solstitialis Robert F. Hoover 1966-8-31 9946 Contra Costa Jctn of Tassajara and Freitas Rd, E of Danville Comment
  UC2028274  Centaurium davyi Barbara Ertter 1999-6-12 16702 Contra Costa Black Hawk Ridge Road between Knobcone Point Road and NE fork of Sycamore Creek, South side of Mount Diablo. Comment
  UC2028240  Centaurium muehlenbergii Barbara Ertter, Tony Morosco 1998-9-18 16424 Contra Costa Lime Ridge Open Space northwest of Mount Diablo. Comment
  UC1069518  Centromadia fitchii H. S. Yates 1934-9-2 4086 Contra Costa 2 mi s Mt. Diablo; Mt. Diablo Quad. 579 Comment
  CAS-BOT-BC288536  Centromadia fitchii David D. Keck 1933-11-2 2609 Contra Costa San Ramon, Crow Creek Canyon Rd, 0.5 mile from turnoff Comment
  CDA9504  Centromadia pungens D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .231 Contra Costa Byron Airport. Comment
  CAS-BOT-BC279203  Centromadia pungens subsp. pungens David D. Keck 1932-7-7 1736 Contra Costa Just east of Nichols Comment
  UC1819017  Centromadia pungens subsp. pungens Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14679 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay; packed ground around Tank 14 in center of hillside. Comment
  UC1606353  Cephalanthus occidentalis var. californicus Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, and Amy Hiss 1991-8-18 10692 Contra Costa n of Pittsburg (Browns Island, near confluence of Sacramento River and San Joaquin River, opposite Pittsburg Marina); Browns Island Comment
  CHSC116614  Cerastium glomeratum Lowell Ahart; Josephine Guardino 2016-4-19 20773 Contra Costa Undesignted section of Canada de Los Vaqueros Land Grant. 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  UC579851  Cerastium glomeratum Annetta Carter 1936-4-19 1114 Contra Costa 1 mi. s.w Castro Point (e. side Red Rock); San Francisco Bay, Red Rock Comment
  UC2028161  Cerastium glomeratum Barbara Ertter 1998-4-4 15947 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, SE of Indian Valley School. Comment
  UC34726  Chaenactis glabriuscula var. glabriuscula Chesnut and Drew Contra Costa Summerville Comment
  RSA0028851  Chamaesyce maculata Barbara Ertter, Rich Rabeler, Tony Morosco 1997-6-10 15666 Contra Costa Miller Knox Regional Shoreline south of Richmond, parking area for Richmond Ramblers. Comment
  JEPS99568  Chamaesyce serpillifolia subsp. serpillifolia Mary Bowerman 1975-9-14 Contra Costa Mount Diablo, Chase Pond. 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
  UC42451  Cheilanthes intertexta F. T. Bioletti May 1894 Contra Costa Mt Diablo Comment
  CDA23364  Chenopodium californicum D. G. Kelch, A. G. Murdock 2004-3-5 4 .01 Contra Costa Carquinez Strait Region; Sky Ranch. Dutra Fire Road. Franklin Canyon. Comment
  RSA0027945  Chenopodium californicum Barbara Ertter 1998-4-4 15964 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, west side of rocky knoll between northwestern-most ridge and Indian Valley School. Comment
  UC2027830  Chenopodium californicum Barbara Ertter with Tony Morosco and other CNPS members 2001-5-6 17622 Contra Costa Northwest flank of Mount Diablo, south end of Black Point Trail on tributary of White Canyon. Comment
  UC2027886  Chenopodium murale Barbara Ertter with Chris Thayer 1996-10-25 15362 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park. Comment
  CDA3133  Chenopodium vulvaria D. G. Kelch, A. G. Murdock 2005-7-11 5 .459 Contra Costa Carquinez Strait Region; Crockett - Edwards Canyon. Edwards Creek Staging Area. Comment
  UCR13095  Chlorogalum pomeridianum Robin Maetche, Geoffrey Matthews 1971-7-4 s.n. Contra Costa 1 mi below North [Gate Road] entrance to Mt. Diablo State Park, Concord 427 Comment
  CAS-BOT-BC497666  Chlorogalum pomeridianum Mary L. Bowerman 1930-6-5 239 . Contra Costa Mount Diablo: North Road, 2.9 mi from North Gate 243 Comment
  SJSU9368  Chloropyron molle subsp. molle W. Savage 1979-6-15 1267 Contra Costa 100' W of Harris Harbor Channel, 0.25 mi N of Harris Harbor Comment
  UC692213  Chorizanthe membranacea Mary L. Bowerman 1938-5-28 3636 Contra Costa North Road 4.7 mi from North Gate (Mount Diablo); Mount Diablo 411 Comment
  UC849193  Chorizanthe membranacea Lewis S. Rose 1941-5-15 41230 Contra Costa w slope Mount Diablo; w slope Mount Diablo 396 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
  CAS-BOT-BC264081  Chorizanthe uniaristata M. K. Curran 1884-1-1 s.n. Contra Costa Near Mt. Diablo Comment
  SD8106  Chorizanthe uniaristata Kate Curran June 1884 Contra Costa Antioch Comment
  JEPS38066  Chrysolepis chrysophylla var. minor W. L. Jepson Oct 1909 3495 Contra Costa Moraga Ridge Comment
  JEPS46616  Chrysolepis chrysophylla var. minor Dr. H. M. Wheeler 1943-8-15 Contra Costa Moraga Ridge Comment
  UCD110102  Chrysolepis chrysophylla var. minor J. M. Tucker 1941-9-26 408 Contra Costa Summit of Moraga Ridge. Comment
  JEPS89253  Cicendia quadrangularis J. B. Davy 1900-3-24 6516 Contra Costa Pt. Richmond Comment
  POM202440  Cicuta bolanderi J. W. Congdon 1893-7-30 s.n. Contra Costa Martinez. Comment
  UC2070512  Cirsium cymosum Barbara Ertter with Mike Park, David Gowen 2004-7-17 18442 Contra Costa North side Mount Diablo, west of Twin Peaks. Comment
  UC691377  Cirsium cymosum var. cymosum Mary L. Bowerman 1935-5-22 3041 a Contra Costa Eagle Point Ridge, canyon at n e of which heads into saddle w of Twin Peaks Mount Diablo 304 Comment
  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
  UC2031459  Cirsium occidentale var. californicum Barbara Ertter with David Gowen, Mike Park, Chris Thayer et al. 2014-4-12 21710 Contra Costa North side of Rhine Canyon Road, Ginochio property on east side of Mount Diablo Comment
  JEPS41056 Image available Cirsium quercetorum Rimo Bacigalupi 1965-5-11 9081 Contra Costa Brooks Island (in San Francisco Bay southwest of Richmond). Comment
  POM248733  Cirsium quercetorum J. T. Howell 1938-6-30 13940 Contra Costa Berkeley Hills on NE slope near head of Wildcat Canyon. Comment
Read comments
Nov 27 2009
  JEPS99955  Cirsium vulgare A. Langston 2003-7-28 AL 75 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC691386  Cirsium vulgare Mary L. Bowerman 1932-11-19 1659 Contra Costa Lower Grapevine Spring Mount Diablo, Lower Grapevine Spring Comment
  RSA757051  Citrullus colocynthis var. lanatus Rudolf Schmid 2003-9-13 2003 -15 Contra Costa Vacant lot, 24 Edwin Drive, Kensington 169 Comment
  UC1122359  Clarkia affinis C. M. Belshaw 1936-5-9 2075 Contra Costa 2 1/4 mi e Clayton (plot 10); Mt. Diablo Quadrangle Comment
  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
  UC1071958  Clarkia biloba H. and M. Lewis 1947-6-15 442 Contra Costa 2.7 mi n Martinez City Limits (Martinez-Port Costa Road) Comment
  UC692439  Clarkia biloba Mary L. Bowerman 1935-6-15 3139 Contra Costa below Ransom Point (Eagle Point Ridge); Mount Diablo 822 Comment
  RSA0059990  Clarkia biloba subsp. biloba C. L. Hitchcock 1928-6-5 13 Contra Costa Between Point Costa and Martinez, 1.5 mile from Port Costa. 40 Comment
  CAS-BOT-BC164157  Clarkia concinna A. D. E. Elmer 1903-5-1 4336 Contra Costa Mount Diablo Comment
  JEPS43618  Clarkia concinna subsp. concinna W. L. Jepson 1923-6-10 9987 Contra Costa Upper Marsh Creek Mt. Diablo Comment
  UC1952185 Image available Clarkia concinna subsp. concinna R. Raiche 1981-3-1 s.n. Contra Costa North America, U.S.A., California, Contra Costa County: Mt. Diablo. N. Slope of N. peak in talus slopes below the ridge line. Under Quercus spp., Juniperus californica, Cercocarpus betuloides & Pelea baldwinii. Comment
  UC306515  Clarkia concinna subsp. concinna A. D. E. Elmer May, 1903 4336 Contra Costa Mount Diablo Comment
  UC2042956  Clarkia gracilis Barbara Ertter with David Gowen 2007-5-13 19014 Contra Costa Mount Diablo, W of Prospectors Gap Road just E of junction Meridian Ridge Road. Comment
  UC2028301  Clarkia gracilis subsp. gracilis Barbara Ertter, Susan D'Alcamo 1998-6-12 16190 Contra Costa North Peak Trail south of Prospectors Gap on east side of Mount Diablo summit. Comment
  RSA355431  Clarkia heterandra Anstruther Davidson 1917-07 3289 Contra Costa Mt. Diabolo [Diablo] Comment
  UC2028270  Clarkia purpurea Barbara Ertter 1999-6-12 16707 Contra Costa Black Hawk Ridge Road between Knobcone Point Road and NE fork of Sycamore Creek, South side of Mount Diablo. Comment
  CAS-BOT-BC163675  Clarkia purpurea subsp. quadrivulnera Rimo Bacigalupi 1926-4-30 1358 Contra Costa Mt. Diablo 548 Comment
  CDA31204  Clarkia purpurea subsp. quadrivulnera D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .221 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  CDA33413  Clarkia purpurea subsp. quadrivulnera D. G. Kelch, D. A. Weinstein 2011-5-28 11 .539 Contra Costa Carquinez Strait Region.; W of Martinez. N of end of Hillside Pl. Comment
  JEPS23503  Clarkia purpurea subsp. quadrivulnera Edward Lee Greene 1886-5-25 Contra Costa Mt. Diablo 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-BC163676  Clarkia purpurea subsp. quadrivulnera L. R. Abrams 1922-5-25 8040 Contra Costa At spring 4 1/2 mi from Summit, Mt. Diablo Comment
  POM300660  Clarkia purpurea subsp. quadrivulnera Mary L. Bowerman 1931-4-25 760 Contra Costa Mount Diablo, above junction of south and west roads Comment
  JEPS75480  Clarkia rubicunda P. F. Yorks 1975-7-18 473 Contra Costa n of Briones Reservoir (ca 1.9-2.0 km s of Bear Creek Road on Hampton Road in Hampton Road Natural Reserve); Hampton Road Natural Reserve Comment
  UC1279946  Clarkia rubicunda Peter H. Raven 1957-7-5 11050 Contra Costa ne side of hills Point Richmond 106 Comment
  RSA113670  Clarkia rubicunda Peter H. Raven 1957-6-20 10950 Contra Costa Inspiration Point, east end of Tilden Regional Park 366 Comment
  UC113995  Clarkia rubicunda Katharine Brandegee 1908-7-3 Contra Costa n side Point Isabel (type locality) Comment
  CDA38067  Clarkia unguiculata A. G. Murdock 2003-6-2 81 Contra Costa Carquinez Strait Region; Franklin Canyon - McHarry Ranch Rd. Comment
  CHSC75102  Clarkia unguiculata Roger Thom 1987-5-18 12 Contra Costa 1.0 mi from intersection with Pleasant Hill Rd. on Reilez Valley Rd. Lafayette (1600 block). Road cut. 182 Comment
  UC1586096  Clarkia unguiculata Barbara Ertter with Travis Columbus 1990-6-10 9105 Contra Costa w Pleasant Hill (hillside above junction of Spengler and Blue Oak trail, ne corner of park); Briones Regional Park, Briones Hills 274 Comment
  RSA448454  Clarkia unguiculata E. E. Stanford 1930-5-24 1510 Contra Costa Marsh Creek Canyon. Comment
  CAS-BOT-BC439165  Claytonia exigua subsp. exigua Mary L. Bowerman 1932-3-12 1110 Contra Costa Mount Diablo. Alamo Canyon 350 Comment
  CAS-BOT-BC439166  Claytonia exigua subsp. exigua Mary L. Bowerman 1932-3-12 1113 Contra Costa Mount Diablo. Alamo Canyon 365 Comment
  CAS-BOT-BC439172  Claytonia exigua subsp. exigua L. R. Abrams 1921-5-25 8023 Contra Costa Summit, Mt Diablo Comment
  CHSC93813  Claytonia exigua subsp. exigua K. L. Chambers 1977-4-1 4266 Contra Costa Mt. Diablo. On trail to Deer Flat from the summit road, ca. 1/8 mile above Deer Flat. Comment
  UC412616  Claytonia exigua subsp. exigua E. W. Hicks 1917-3-24 113 Contra Costa w shoulder Mt. Diablo 609 Comment
  UC692548  Claytonia exigua subsp. exigua Mary L. Bowerman 1935-3-16 2732 Contra Costa Peach Tree Springs Road Mount Diablo (e fork of canyon) 228 Comment
  UC765765  Claytonia exigua subsp. exigua R. F. Hoover 1938-3-25 2896 Contra Costa Lone Tree Valley Comment
  CAS-BOT-BC439170  Claytonia exigua subsp. exigua Alice Eastwood 1915-5-30 4532 Contra Costa Unspecified Comment
  RSA0068500  Claytonia parviflora Katie Gallagher, Nick Jensen 2014-4-26 174 Contra Costa Las Trampas Regional Wilderness. 365 Comment
  UC1745431  Claytonia parviflora subsp. parviflora Annetta M. Carter, Leo Bowerman 1935-6-1 872 Contra Costa Mt. Diablo. N-facing slope of main ridge running W from peak. 975 Comment
  CAS-BOT-BC439439  Claytonia parviflora subsp. parviflora Alice Eastwood 1915-5-3 s.n. Contra Costa Mt. Diablo Comment
  HSC17691  Claytonia perfoliata subsp. mexicana D. A. Shally 1965-4-18 33 Contra Costa Canyon, 1 mi. N of Canyon Store Comment
  CAS-BOT-BC440075  Claytonia perfoliata subsp. perfoliata John Thomas Howell 1931-3-10 5755 Contra Costa East side of Mt. Diablo 7 miles from Clayton on Livermore road Comment
  CAS-BOT-BC440076  Claytonia perfoliata subsp. perfoliata John Thomas Howell 1933-5-14 11273 Contra Costa Hills east of St. Mary's College Comment
  UC1745809  Claytonia perfoliata subsp. perfoliata Annetta M. Carter, Edward Lee 1935-3-29 756 Contra Costa Marsh Creek Rd., 1.2 mi. E of Clayton. Comment
  UC517966  Claytonia perfoliata subsp. perfoliata John Thomas Howell 1931-3-10 5755 Contra Costa 7 mi from Clayton (on Livermore road, e side of Mt. Diablo); Mt. Diablo Comment
  UC1795716  Claytonia rubra subsp. depressa Barbara Ertter, Brad Olson, Diane Lake 1996-4-14 14591 Contra Costa North Peak of Mt. Diablo; open rocky flats. Comment
  CAS-BOT-BC91355  Clematis lasiantha V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley. Comment
  CAS-BOT-BC91357  Clematis lasiantha V. Rattan 1883-4-1 s.n. Contra Costa Martinez. Comment
  UC1050307 Image available Clerodendrum bungei N. Floy Bracelin 1941-8-24 1592 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC499321  Clintonia andrewsiana Walter Knight; Irja Knight 1988-5-21 6129 Contra Costa Redwood Regional Park, between pipe bridge and single curb bridge along Stream Trail 274 Comment
  SEINET12050675  Clintonia andrewsiana W. Knight, Knight, I. 1988-1 6129 Contra Costa Redwood Regional Park, between pipe bridge and single curb bridge along Steam Trail 274 Comment
  JEPS5870  Collinsia bartsiifolia var. bartsiifolia Fred Shoemaker 1938-4-11 Contra Costa 3 mi w Byron Comment
  UC691495  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
  UC691582  Collinsia heterophylla Mary L. Bowerman 1930-6-5 245 Contra Costa West Road 5.8 mi from entrance, Mount Diablo Mount Diablo; , West Road 457 Comment
  SEINET10964450  Collinsia heterophylla John G. Lemmon 1872-1 Lemmon s.n. Contra Costa Mt. Diablo. Comment
  JEPS108351  Collinsia sparsiflora David Gowen 2005-3-31 220 Contra Costa Sibley Regional Preserve. East facing slope just east of Park boundary near dirt road that heads southeast. Comment
  JEPS22934  Collinsia tinctoria Volney Rattan Jun 1886 Contra Costa Mt. Diablo Comment
  UC2027981  Conyza bonariensis Barbara Ertter, Chris Thayer 1996-10-25 15390 Contra Costa Southwest flank of Mount Diablo, lower South Gate Road just inside park boundary. Comment
  UC1584663  Conyza canadensis Jerry Powell 1990-8-29 1586 Contra Costa Antioch National Wildlife Refuge Comment
  UC2027933  Conyza canadensis Barbara Ertter with Chris Thayer 1996-10-25 15383 Contra Costa West side of Mount Diablo, North Gate Road 3 road miles below Junction near Mineral Spring. Comment
  UC1050105  Coprosma areolata N. Floy Bracelin 1942-3-22 1985 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
  UC2042771  Cordylanthus pilosus subsp. pilosus Barbara Ertter with Lynne Hosley 1992-8-29 11266 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, in canyon along Coyote Trail Comment
  UC691507  Cordylanthus pilosus subsp. pilosus Mary L. Bowerman 1936-8-8 3523 Contra Costa Emmons Canyon, W fork Mount Diablo Comment
  UC1795844  Cordylanthus pilosus subsp. pilosus Barbara Ertter, M. L. Bowerman, L. Schultheis, Kevin Hintsa 1995-10-22 14537 Contra Costa Three Springs Trail on northeast side of Mt. Diablo, in woods above ranch, north-facing slope. Comment
  POM181454  Cornus californica I. L. Wiggins 1930-4-18 4593 Contra Costa East end of Jersey Island. Comment
  CAS-BOT-BC210452  Cornus sericea subsp. occidentalis John Thomas Howell 1925-11-7 1559 Contra Costa San Leandro Canyon near Canyon Station Comment
  UC650584  Cornus sericea subsp. sericea Ira L. Wiggins 1930-4-18 4593 Contra Costa levee banks e. end Jersey Island Comment
  UC407389  Coronopus didymus Ira L. Wiggins 1930-4-18 4595 Contra Costa e end of Jersey Island, Fallow cornfield Jersey Island Comment
  CAS-BOT-BC190075  Cortaderia selloana Walter Knight 1978-9-19 3247 Contra Costa Browns Island. South Landing. 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
  RSA0027707  Cosmos bipinnatus Barbara Ertter 1996-9-19 15290 Contra Costa Cerrito Creek at base of Albany Hill, just west of San Pablo Avenue. Comment
  CDA42381  Cotoneaster pannosus D. G. Kelch 2012-5-27 12 .072 Contra Costa Carquinez Strait Region; Pinole Valley Park. Comment
  UC2029109  Cotula australis Barbara Ertter 1990-5-16 8992 Contra Costa South El Cerrito, corner of San Pablo Avenue and Carlson Blvd. Comment
  UC2032849  Cotula coronopifolia Doran, Andrew Scott 2012-3-20 720 Contra Costa Northeast part of Brooks Island, on trail to beach along spit. Comment
  UC31273  Cotula coronopifolia W. H. Brewer 1862-4-25 993 Contra Costa Camp 68 Martinez Comment
  SBBG122841  Crassula aquatica M. Bowerman 1975-9-14 Contra Costa Hidden Pond, Mt Diablo Comment
  UC1949082  Crassula aquatica Barbara Ertter with Jim Dunne, David Gowen, Lech Naumovich 2009-12-3 19792 Contra Costa at upper (south) end of San Pablo Dam Reservoir northwest of Orinda Comment
  UC692662  Crassula aquatica Mary L. Bowerman 1931-4-4 663 Contra Costa pool w. of Turtle Rock; Mt. Diablo Comment
  CAS-BOT-BC427569  Crassula aquatica Virginia I. Dains; Walter Knight 1986-8-8 5459 Contra Costa Jct Rock S1 & Werner Cut, Ecos East Contra Costa County Comment
  RSA0027646  Crassula aquatica Barbara Ertter 1998-5-3 16059 Contra Costa Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. 274 Comment
  JEPS25118  Crassula connata var. subsimplex G. Thomas Robbins 1959-3-15 3961 Contra Costa hills at e. edge Rodeo 12 Comment
  UC1795806  Crassula tillaea Barbara Ertter, Lisa Schultheis 1995-4-27 14018 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; head of west facing scrub-filled draw (east of golf-course). 182 Comment
  SD241801  Crassula tillaea Barbara Ertter, Gary Schoolcraft 1996-4-7 14578 Contra Costa Molate Beach Park on San Francisco Bay north of San Rafael Bridge; bare edge of lawn-covered bluff. Comment
  UC692623  Crocanthemum scoparium var. vulgare Mary L. Bowerman 1932-10-1 1598 Contra Costa ridge s Uncle Sam Canyon; Mount Diablo, Eagle Point Ridge Comment
  OBI15230  Crossosoma californicum Neil Havlik 1968-3-21 82 Contra Costa Charles Lee Tilden Regional Park, E of Berkeley Comment
  RSA201184  Croton californicus Peter Rubtzoff 1951-10-7 827 Contra Costa Along lower San Joaquin River, east of Antioch. Comment
  RSA480683  Croton californicus E. E. Stanford 1930-5-30 1533 Contra Costa Near Knightsen. Comment
  SEINET7716179  Croton californicus Chesnut, Drew 1889-4-18 Contra Costa Antioch Comment
  JEPS99549  Crypsis schoenoides Mary Bowerman 1975-9-14 Contra Costa Mount Diablo, Hidden Pond. Comment
  JEPS99569  Crypsis schoenoides Mary Bowerman 1993-10-22 Contra Costa Mount Diablo, Pine Pond. Comment
  UC2027889  Crypsis schoenoides Barbara Ertter 1996-10-13 15312 Contra Costa West side Mount Diablo, upper part of North Gate Road. Comment
  UC2028311  Cryptantha decipiens Barbara Ertter, Susan D'Alcamo 1998-6-12 16165 Contra Costa North Peak Trail from Devil's Elbow on SE side of Mount Diablo summit. Comment
  JEPS67586  Cryptantha flaccida W. L. Jepson May 22 1891-May 23 1891 21115 Contra Costa Mt. Diablo Comment
  JEPS86564  Cryptantha flaccida Roy E. Buck 1988-4-23 902 Contra Costa 9 air km se Walnut Creek (ca 2.0 air km w of Moses Rock Spring, sw-facing slope on n side of North Gate Rd, 0.3 road mi se of park boundary); Mt. Diablo State Park 207 Comment
  SBBG28215  Cryptantha flaccida L. Constance, C. W. Sharsmith with H. S. Reed 1940-4-27 2573 Contra Costa Pine Cyn, base of Mt Diablo 304 Comment
  UC659427  Cryptantha flaccida Lincoln Constance, Carl W. Sharsmith with Howard S. Reed 1940-4-27 2573 Contra Costa Pine Canyon, base of Mount Diablo Mount Diablo 304 Comment
  UC691342  Cryptantha microstachys Mary L. Bowerman 1931-4-4 633 Contra Costa 2 mi (rd) from Mount Diablo w entrance (= North Gate); Mount Diablo Comment
  UC691417  Cryptantha microstachys Mary L. Bowerman 1933-4-26 1915 Contra Costa North Peak ridge, ese of the peak, s-face Mount Diablo 609 Comment
  UC79469  Cryptantha microstachys Katharine Brandegee Apr 1889 Contra Costa Antioch Comment
  JEPS116916  Cryptantha microstachys David Gowen 2009-4-4 982 Contra Costa Hard packed sandy area just south of Las Trampas Ridge Trail and about 1/4 mile west of junction with Del Amigo Trail. Comment
  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
  UC763023  Cryptantha nevadensis var. rigida R. F. Hoover 1938-5-4 3348 Contra Costa Peak E of Tassajero Creek 762 Comment
  CDA39961  Cuscuta japonica Niang/Slattengreen 2008-8-2 PDR# 1454023 Contra Costa El Sobrante; 5741 Skyview Place (near Richmond city limits?) 0 Comment
  UC1949099  Cuscuta pacifica var. pacifica Barbara Ertter with Elizabeth Neese 1988-10-15 7978 Contra Costa Salicornia marsh W of I-580 in El Cerrito, W side along Rydin Road N of Central Avenue Comment
  UCD150917  Cuscuta salina James A. Neilson Jr. 1972-10-21 s.n. Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 0 Comment
  UC691854  Cuscuta subinclusa Mary L. Bowerman 1935-6-1 3118 Contra Costa n side Meridian Peak summit (below house); Mount Diablo 1158 Comment
  UC691856  Cuscuta subinclusa Mary L. Bowerman 1930-8-24 437 Contra Costa Mitchell Canyon Mount Diablo Comment
  UC691857  Cuscuta subinclusa Mary L. Bowerman 1933-9-3 2418 Contra Costa s of Meridian-North Peak saddle; Mount Diablo Comment
  UC1795818  Cuscuta subinclusa Barbara Ertter 1994-6-26 12876 Contra Costa South of Point Molate Beach Park in west Richmond north of San Rafael Bridge, beach north of Pt. Castro. Comment
  CAS-BOT-BC299743  Cynara cardunculus John Thomas Howell 1953-3-15 28922 Contra Costa Danville Comment
  UC2013065  Cynara cardunculus Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14927 Contra Costa Northwest base of Mount Diablo access to Foothills Regional Park from North Gate road along Little Pine Creek. Comment
  UCD60088  Cynodon dactylon Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  CDA28981  Cynosurus echinatus D. G. Kelch, Suzanne Latham, Matt Beyers 2009-6-3 09 .330-B Contra Costa East Bay.; El Sobrante Ridge at end of Silver Belt Dr. on Miocene chert outcrop. Comment
  JEPS99559  Cynosurus echinatus Mary Bowerman 1995-5-28 Contra Costa Mount Diablo, Fire road from Macedo Ranch to Wall Pt. Ridge. Comment
  SEINET3840900  Cyperus difformis Unknown 2006-9-15 6 .474 Contra Costa Martinez, Shell Avenue, between Pine Street and Harborview Drive 60 Comment
  JEPS111890  Cyperus eragrostis D. G. Kelch 2004-5-7 04 .192 Contra Costa Ca ada del Cierbo Ca ada del Cierbo 40 Comment
  RSA605653  Cyperus niger var. capitatus L. C. Wheeler 1952-10-2 7000 Contra Costa Mount Diablo: ca. 0.8 mile up from Turtle Ranch, ca. 1 mile downhill from divide in road. Comment
  UC1795750  Cytisus scoparius Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14678 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay; grassland/scrub at northeast corner of area. Comment
  CDA26940  Cytisus striatus D. G. Kelch 2007-4-27 7 .202 Contra Costa Carquinez Strait; Martinez; on hill NE of Hwy 4 at Alhambra Rd. Comment
  CDA35758  Cytisus striatus V. Guise 2011-5-13 PDR# 1641027 Contra Costa Richmond; Wildcat Canyon Regional Park, 2755 McBryde Ave. 0 Comment
  CDA8355  Cytisus striatus D. G. Kelch 2005-5-13 5 .272 Contra Costa Carquinez Strait; Tall hill in S Martinez, immediately N of Highway 4. Comment
Read comments
Oct 30 2012
  UC2070617  Danthonia californica Barbara Ertter 2002-5-16 17862 Contra Costa Richmond Field Station (UC-Berkeley). Comment
  JEPS111615  Daucus pusillus D. G. Kelch 2004-5-9 04 .206 Contra Costa Crockett - Upper Edwards Canyon, above Crockett Blvd 160 Comment
  CAS-BOT-BC287365  Deinandra Walter Knight 1977-7-24 s.n. Contra Costa Black Diamond Mines Regional Preserve. Nortonville Ridge 304 Comment
  RSA216745  Deinandra bacigalupii Robert F. Hoover 1969-8-29 11564 Contra Costa Raymond Road and Ames Street, Livermore Valley. Comment
  CAS-BOT-BC294014  Deinandra kelloggii Dr. A. Kellogg 1870-4-22 s.n. Contra Costa Antioch Comment
  UC34625  Deinandra kelloggii Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  UC365836  Deinandra kelloggii Mrs. K. Curran Contra Costa near Antioch Comment
  UC480907  Deinandra kelloggii Katharine Brandegee 1907-5-1 Contra Costa near Antioch; Judsonville Comment
  UC88930  Deinandra kelloggii unknown 1883-7-1 Contra Costa Antioch Comment
  UC990569  Deinandra kelloggii James I. McMurphy 1909-5-21 Contra Costa Antioch Comment
  CAS-BOT-BC294021  Deinandra kelloggii John Thomas Howell 1929-7-20 4329 Contra Costa 2 miles s. of Oakley Comment
  CAS-BOT-BC291805  Deinandra lobbii H. M. Hall 1930-6-18 12791 Contra Costa South of Pittsburg Comment
  CAS-BOT-BC9611  Delphinium californicum Mrs. E. C. Van Dyke 1931-4-1 s.n. Contra Costa Cypress Ridge, above Livermore Comment
  JEPS105715  Delphinium hansenii subsp. hansenii David Gowen 2004-5-10 57 Contra Costa Round Valley Regional Preserve.North-facing slope above the main road through the park, ca. 1/2 mile west of the entry. Comment
  UC2029185  Delphinium hesperium Barbara Ertter 2000-5-14 17004 Contra Costa Donner Canyon on north side of Mount Diablo, junction of Donner Canyon, Cardinet Oaks, and Meridian Ridge Roads. Comment
  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
  CAS-BOT-BC10010  Delphinium hesperium subsp. pallescens E. Wright 1917-6-1 S. N. Contra Costa Mt. Diablo Comment
  LA38170  Delphinium hesperium subsp. pallescens Lewis; Mehlquist 446 Contra Costa S of Antioch, 5.4 mi. N of Marsh Creek rd Comment
  CAS-BOT-BC116455  Delphinium patens subsp. patens H. L. Mason 1925-3-10 1301 Contra Costa Mount Diablo 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
  UC9152  Delphinium patens subsp. patens J. Burtt Davy 1895-4-13 1008 Contra Costa near Lafayette Comment
  UC9157  Delphinium patens subsp. patens Harley P. Chandler 1901-4-5 974 Contra Costa Mount Diablo Comment
  CAS-BOT-BC116460  Delphinium patens subsp. patens Miss Mary Leolin Bowerman 1931-3-21 584 Contra Costa Sycamore Canyon, below chaparral on west facing slope Comment
  CAS-BOT-BC116462  Delphinium patens subsp. patens E. M. Zeile 1910-4-2 s.n. Contra Costa Fish Ranch Comment
  UC2027926  Delphinium patens subsp. patens Barbara Ertter with Linda Vorobik 2001-3-24 17571 Contra Costa Lime Ridge Open Space east of Walnut Creek, eastern edge overlooking Crystal Springs subdivision. Comment
  OBI10610  Delphinium recurvatum Robert F. Hoover 1967-4-28 10511 Contra Costa Byron Hot Springs Comment
  UC765796  Delphinium recurvatum R. F. Hoover 1938-3-25 2900 Contra Costa Byron Hot Springs Comment
  UC199142  Delphinium variegatum Chesnut and Drew 1887-4-16 Contra Costa Clayton Comment
  LA207638  Delphinium variegatum H. Lewis; Carl Epling 1944-5-6 sn Contra Costa 1 mi. S of Marsh Creek Rd. on the Beck Rd. to Livermore Comment
  JEPS9557  Dicentra chrysantha W. L. Jepson 1921-11-19 9518 Contra Costa Mt. Diablo Comment
  UC199816  Dicentra chrysantha V. King Chesnut 1887-9-10 Contra Costa Mt. Diablo Comment
  UC33546  Dicentra chrysantha V. K. Chesnut before August, 1901 Contra Costa Mt. Diablo Comment
  JEPS64158  Dichelostemma capitatum Helen Bergfried 1918-5-12 Contra Costa vicinity Berkeley; Wildcat Creek Comment
  JEPS64178  Dichelostemma capitatum Adele Grant Mar 1914 Contra Costa Antioch Comment
  SEINET3559560 Image available Dichelostemma capitatum Lewis S. Rose 1932-3-15 3284 Contra Costa Byron. Comment
  UC1133877  Dichelostemma capitatum C. M. Belshaw 1936-5-8 2060 Contra Costa se slope Mt. Diablo; Mt. Diablo Quad. 990 Comment
  UC64062  Dichelostemma capitatum Harley P. Chandler 1901-3-22 854 Contra Costa near Martinez; San Francisco Bay Region Comment
  UCD102375  Dichelostemma capitatum Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 900 Comment
  CAS-BOT-BC500086  Dichelostemma capitatum E. M. Zeile 1922-6-3 s.n. Contra Costa Mt. Diablo. Comment
  RSA721369  Dichondra donelliana Barbara Ertter, Gary Schoolcraft 1996-4-7 14574 Contra Costa Pont San Pablo in west Richmond. Comment
  CAS-BOT-BC150328  Diplacus aurantiacus D. E. Breedlove 1970-4-18 17427 Contra Costa At the north edge of Lafayette above Laurel Drive 243 Comment
  CAS-BOT-BC150330  Diplacus aurantiacus Alice Eastwood 1921-4-18 10287 Contra Costa Antioch Comment
  SJSU7703  Diplacus tricolor J. A. Johnson 1956-4-12 20 Contra Costa 1.5 mi E of Concord in El Monte District Comment
  UCD159358  Dipsacus sativus D. S. Park 2010-6-22 143 Contra Costa Wildwood canyon. Along trailside. Ditch/waterway. Small population. 80 Comment
  JEPS111909  Dirca occidentalis Dean G. Kelch and Andrew G. Murdock 2003-3-2 DGK 03 .038.C. Contra Costa Crockett - Edwards Canyon. At top of Crockett Blvd. East of Cummings Skyway. Comment
  JEPS77000  Dirca occidentalis Robert M. Lloyd 1963-3-17 2131 Contra Costa Skyline Drive 0.5 mi e intersection with Grizzly Peak Road (across from 7090 Skyline, Huckleberry trail) Comment
  JEPS78104  Dirca occidentalis G. W. Zamzow 1973-2-23 126 Contra Costa Wildcat Canyon East Bay Regional Park Comment
  OBI78484  Dirca occidentalis H. E. McMinn 1925-3-30 1402 Contra Costa Near summit Thornhill Rd and Skyline blvd Comment
  RSA40099  Dirca occidentalis L. S. Rose 1948-3-9 s.n. Contra Costa Head of Wildcat Creek, Berkeley Hills 457 Comment
  OBI78486  Dirca occidentalis A. Kay Ketcham 1968-3-21 16 Contra Costa Approx 300 yds S of Neil Havlik #88 at the S end of Charles Lee Tilden Regional Park Comment
  SEINET12194752  Dirca occidentalis Unknown 1987-1 6009 Contra Costa Regional Parks Botanic Garden, Tilden Regional Park, Berkeley, orig. from Little Train area 1970 305 Comment
  UC3564  Disporum hookeri unknown 1862-5-16 1099 Contra Costa s of Mount Diablo Comment
  JEPS108532  Distichlis spicata Lisa Schultheis with Kevin Hintsa 1995-8-20 263 -95 Contra Costa Mount Diablo. 2.1 mi from North Gate kiosk. along North Gate Road. Comment
  UCD64380  Distichlis spicata var. stolonifera A. A. Beetle 1941-6-24 1752 Contra Costa Point Richmond on San Francisco Bay. Comment
  JEPS128149  Dittrichia graveolens Eric Wrubel, Robert Steers 2010-10-1 NPS 1 Contra Costa Joh Muir National Historic Site, Martinez. Mount Wand trailhead. Comment
  RSA739726  Dittrichia graveolens John Dittes 2006-10-26 1412 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
  UCR198215  Dittrichia graveolens Dean Kelch, A. G. Murdock 2005-11-3 05 .489 Contra Costa Carquinez Strait, entrance to Mt. Wanda 37 Comment
  JEPS99500  Dodecatheon clevelandii subsp. patulum Mary Bowerman 1979-4-3 Contra Costa Mount Diablo. Shell Ridge. Comment
  UC1111024  Dodecatheon hendersonii Herbert L. Mason 1926-3-7 2700 Contra Costa Mt. Diablo Comment
  SEINET8561944  Dodecatheon hendersonii P. Del Monte 1976-3-28 s.n. Contra Costa Oakhill Lane, 1 mile above junction with Morgan Territory Road. 305 Comment
  JEPS22728  Downingia insignis Rimo Bacigalupi with Drs. L. Constance and R. Alava 1958-6-6 6366 Contra Costa 3 mi s Byron (between railroad tracks and the highway to Tracy) Comment
  SEINET3147636  Downingia insignis L. S. Rose 1940-4-30 40256 Contra Costa 6 mi S of Antioch 30 Comment
  UC1736620  Downingia insignis Dean W. Taylor 1991-5-2 11632 Contra Costa Byron Hot Springs Road, ca. 0.3 miles S of Holey Road, 39 Comment
  UC1733838  Downingia insignis Kay H. Beach 1941-4-30 1082 Contra Costa 7 Comment
Read comments
Feb 4 2013
  UC725662  Downingia ornatissima var. eximia A. A. Heller 1942-4-20 16432 Contra Costa w of Antioch (near the golf links) Comment
  CAS-BOT-BC41652  Draba cuneifolia var. cuneifolia Walter Knight; Irja Knight 1968-3-18 2278 Contra Costa Charles Lee Tilden Regional Park. In the Botanic garden. Comment
  SEINET5718194  Drimys winteri Shirley C. Tucker 1955-1 6088 B Contra Costa University of California Botanic Garden, Berkeley.; UC Botanic Garden Comment
  CAS-BOT-BC428218  Dudleya cymosa subsp. paniculata John Thomas Howell 1942-5-24 16967 A Contra Costa Eagle Peak, Mt. Diablo Comment
  JEPS25137  Dudleya farinosa G. Thomas Robbins 1959-5-16 4007 Contra Costa just s Pt. San Pablo (Potrero Hills); Richmond Comment
  JEPS128780  Dysphania chilensis Kevin Hintsa 2000-8-17 Contra Costa Mount Diablo State Park, flats just upstream from Pine Pond's willow forest. Comment
  UC1818961  Echinochloa crus-galli Barbara Ertter 1995-8-19 14502 Contra Costa Edge of Cerrito Creek on north side of Albany Hill, south edge of El Cerrito; dense weeds at edge of sluggish water. Comment
  CAS-BOT-BC197107  Echinochloa crus-galli D. E. Breedlove 1970-9-3 17685 Contra Costa On Sierra Vista Way. Lafayette Comment
  SEINET3892203  Eichhornia crassipes Barbara Ertter 1990-9-16 9642 Contra Costa Junction of Cypress Road & Jersey Island Road E of Oakley, covering ditch between road & field.; 0 Comment
  POM300652  Elatine californica Mary L. Bowerman 1935-7-22 3186 Contra Costa Hidden Pond. 518 Comment
  JEPS99512  Eleocharis acicularis Mary L. Bowerman 1975-9-14 s. n. Contra Costa Hidden Pond, Mount Diablo Comment
  RSA721534  Eleocharis acicularis var. acicularis Mary L. Bowerman 1975-9-14 s.n. Contra Costa Mount Diablo. Comment
  JEPS111889  Eleocharis macrostachya D. G. Kelch 2004-4-26 04 .140 Contra Costa Point Pinole 3 Comment
  UCR263535  Eleocharis macrostachya Barbara Ertter 1998-5-3 16062 Contra Costa Central Coast, area of Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo, below road southeast of ponds 305 Comment
  SEINET10747423  Eleocharis macrostachya Barbara J. Ertter 1991-9-28 Ertter 10836 Contra Costa San Pablo Reservoir between Orinda and El Sobrante, dried mud flats at S en of reservoir, 91 Comment
  RSA0027647  Eleocharis palustris Barbara Ertter 1998-5-3 16062 Contra Costa area of Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. Below road SE of ponds. 274 Comment
  UC2013045  Eleocharis parishii Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14918 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek 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
  UC756633  Elymus G. L. Stebbins Jr. 1946-6-9 3659 Contra Costa 2 mi e El Cerrito (near Mira Vista Country Club) Comment
  UC756639  Elymus G. L. Stebbins Jr. 1946-6-9 3656 Contra Costa 2 mi e El Cerrito (near Mira Vista Country Club) 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
  POM300594  Elymus glaucus Mary L. Bowerman 1935-5-16 3009 Contra Costa Behind Gabriel-Hinks' (east side of North Peak) 290 Comment
  JEPS76286  Elymus glaucus subsp. jepsonii W. L. Jepson 1943-6-8 20848 Contra Costa Moraga Ridge; ne slope Comment
  CDA6126  Elymus multisetus D. G. Kelch 2007-5-12 7 .291 Contra Costa Carquinez Strait; Franklin Ridge, S of Hwy 4 at McEwen Rd. Comment
  UC692418  Elymus multisetus Mary L. Bowerman 1935-5-25 3067 Contra Costa Mount Diablo; s of summit 1066 Comment
  UC756645  Elymus multisetus G. L. Stebbins Jr. 1946-6-9 3655 Contra Costa 2 mi e El Cerrito (near Mira Vista Country Club) Comment
  UCD62489  Elymus multisetus P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UC691179  Elymus trachycaulus Mary L. Bowerman 1932-10-16 1635 Contra Costa ne 2632 (n slope); Mount Diablo, Eagle Ridge 701 Comment
  UC756651  Elymus trachycaulus G. L. Stebbins Jr. 1946-6-9 3652 Contra Costa 2 mi e El Cerrito (near Mira Vista Country Club) 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
  JEPS75484  Epilobium brachycarpum P. F. Yorks 1974-10-13 372 Contra Costa on Hampton Rd ca 1.9 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Reserve 200 Comment
  UC692445  Epilobium campestre Mary L. Bowerman 1931-6-16 929 Contra Costa scattered in central area Chase Pond; Mt. Diablo 563 Comment
  UC692446  Epilobium campestre Mary L. Bowerman 1935-6-28 3173 Contra Costa s summit (vernal pool 300 yd e of meridian fence line); Mt. Diablo 487 Comment
  UC1122304  Epilobium canum subsp. canum H. S. Yates 1934-9-2 4068 Contra Costa 1 mi sw Mount Diablo; Mount Diablo Quadrangle Comment
  UC634752  Epilobium canum subsp. canum Herbert L. Mason 1923-11-12 852 Contra Costa lower slopes Mt. Diablo Comment
  RSA209508  Epilobium canum subsp. canum Peter Rubtzoff 1951-10-7 814 Contra Costa 1 to 2 miles southwest of Moraga near the road Comment
  UC2028971  Epilobium ciliatum subsp. ciliatum Barbara Ertter 2000-7-16 17393 Contra Costa lower Pine Creek in Diablo Foothills Regional Park. Comment
  UC2070464  Epilobium ciliatum subsp. ciliatum Barbara Ertter, Diane Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10699 Contra Costa Browns Island N of Pittsburg near confluence of Sacramento & San Joaquin rivers opposite Pittsburg Marina. Comment
  UC2028026  Epilobium densiflorum Barbara Ertter 1997-9-14 15807 Contra Costa West side of Mount Diablo, Pine Creek upstream from Dusty Trail. Comment
  UC2028093  Epilobium densiflorum Barbara Ertter, Chris Thayer 1996-10-25 15381 Contra Costa West side of Mount Diablo, North Gate Road 3 roadmiles below Junction, roadside drainage near Mineral Spring. Comment
  UC615553  Epilobium densiflorum Beryl O. Schreiber 1933-10-5 936 Contra Costa road to Mount Diablo; marshy ground Comment
  UC1818895  Epilobium minutum Barbara Ertter, Mary Bowerman et al. 1995-5-7 14065 Contra Costa Three-Springs Trail on NE side of Mt. Diablo SE of Clayton, small serpentine patch at road junction Comment
  SEINET12859577  Epilobium pygmaeum K. Brandegee 1907-6-16 s.n. Contra Costa Antioch Comment
  UC1005902  Epiphyllum N. Floy Bracelin 1943-5-16 2513 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  UC1050456  Epiphyllum N. Floy Bracelin 1941-5-4 1271 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  POM300618  Equisetum laevigatum Mary L. Bowerman 1931-10-31 1063 Contra Costa South Road, in bend of road a little below junction. Mt Diablo. Comment
  JEPS111942  Equisetum telmateia subsp. braunii D. G. Kelch 2004-7-9 04 .292B Contra Costa Crockett: Edwards Creek 5 Comment
  POM300619  Equisetum telmateia var. braunii Mary L. Bowerman 1930-8-24 433 Contra Costa MItchell Canyon. 252 Comment
  CAS-BOT-BC213553  Eragrostis hypnoides P. B. Kennedy 1914-8-25 s.n. Contra Costa Van Sickle Island Comment
  UCD64352  Eragrostis pectinacea var. pectinacea Beecher Crampton 1965-9-29 7529 Contra Costa 2 miles north of Brentwood. Comment
  JEPS103959  Eriastrum abramsii David Gowen 2003-7-2 12 Contra Costa E of Clayton (edge of fire road and on trail that follows shoulder of ridge (above Chaparral Spring) easterly; N of Marsh Creek Road; Clayton Quadrangle, eastern edge) 487 Comment
  UC1784081  Eriastrum ertterae Barbara Ertter with Tony Morosco 1998-10-18 16441 Contra Costa Lime Ridge Open Space, in saddle SE of microwave towers on summit Comment
Read comments
Oct 13 2013
  CAS-BOT-BC514610  Eriastrum pluriflorum subsp. pluriflorum T. S. Brandegee 1883-6-1 s.n. Contra Costa Antioch Comment
  RSA0120805  Eriastrum pluriflorum subsp. pluriflorum Brandegee 1883-06 s.n. Contra Costa Antioch. Comment
  JEPS31296  Ericameria linearifolia W. L. Jepson 1891-5-23 Contra Costa Mt. Diablo Comment
  RSA72858  Ericameria linearifolia A. Kellogg, W. G. W. Harford 1868-5-28 548 Contra Costa Mt. Diablo Comment
  UC691863  Ericameria linearifolia Mary L. Bowerman 1930-6-18 351 Contra Costa Meridian Peak summit Mount Diablo, Meridian Peak (open rocky slope on e side) Comment
  UC86674  Ericameria linearifolia unknown 1889-5-1 Contra Costa Antioch Comment
  SEINET5552883  Ericameria linearifolia H. S. Gentry 1931-1 54 Contra Costa Collected near Mt. Diablo. Comment
  UC1606301  Erigeron foliosus var. franciscensis Barbara Ertter with Lynne Hosley and Sid Cowles 1992-6-7 11083 Contra Costa small knoll e Round Top; Oakland Hills, Sibley Volcanic Regional Preserve Comment
  UC87533  Erigeron foliosus var. franciscensis T. S. Brandegee 1883-7-1 Contra Costa Antioch Comment
  CAS-BOT-BC295718  Erigeron petrophilus var. petrophilus John Thomas Howell 1923-11-12 249 Contra Costa Mt. Diablo Comment
  UC1543059  Erigeron philadelphicus var. philadelphicus Donald G. Nelson 1938-4-24 566 Contra Costa 1 mi n Mount Diablo (Marsh Creek Highway) Comment
  UC1181399  Eriodictyon californicum Jerry Powell 1960-5-24 Contra Costa hill between Canyon and Moraga (hill se of canyon); hill between Canyon and Moraga (hill se of canyon) Comment
  CAS-BOT-BC224218  Eriodictyon californicum H. E. McMinn 1922-6-2 87 Contra Costa From N. slope of Mt. Diablo Comment
  POM300577  Eriogonum Mary L. Bowerman 1932-11-11 1639 Contra Costa Little below Moses Rock Spring: dry grassy ridge, leading up from Buckle Point (on west road). Comment
  CAS-BOT-BC248088  Eriogonum angulosum H. M. Hall 1916-8-17 10276 Contra Costa Deer Valley 182 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
  CAS-BOT-BC250381  Eriogonum gracile Mary L. Bowerman 1932-8-27 1524 Contra Costa Mount Diablo. South of Turtle Rock Comment
  UC2012971  Eriogonum gracile Barbara Ertter with Tony Morosco 1996-7-27 15040 Contra Costa Mount Diablo State Park, Cardinet Oaks Road at crossing of Donner Creek. Comment
  UC691087  Eriogonum gracile Mary L. Bowerman 1932-8-27 1524 Contra Costa s Turtle Rock; Mount Diablo Comment
  RSA423119A  Eriogonum luteolum L. S. Rose 1932-6-24 32349 Contra Costa Mt. Diablo 1173 Comment
  UC521769  Eriogonum luteolum var. luteolum Joseph Andorfer Ewan 1933-10-15 8022 Contra Costa sw slope Mt. Diablo Mt. Diablo Comment
  CAS-BOT-BC268915  Eriogonum nudum var. auriculatum Mary L. Bowerman 1932-9-17 1585 Contra Costa Mount Diablo. Donner Canyon, West fork: of west fork 335 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
  RSA39906  Eriogonum nudum var. auriculatum P. A. Munz 1947-10-8 12204 Contra Costa Sand dunes east of Antioch 8 Comment
  SEINET530762  Eriogonum nudum var. auriculatum Paul Opler 2007-6-23 Contra Costa Point Molate. 19 Comment
  UC691758  Eriogonum nudum var. auriculatum Mary L. Bowerman 1935-3-24 2754 Contra Costa w face Lime Ridge (between two major cuts of the Cowell Cement Company); Mount Diablo Comment
  UC692201  Eriogonum nudum var. auriculatum Mary L. Bowerman 1932-9-24 1594 Contra Costa flat-topped ridge above Mitchell Rock; Mount Diablo 434 Comment
  POM301012  Eriogonum nudum var. auriculatum Annetta Carter 1940-6-22 1601 Contra Costa Mount Diablo: Lime Ridge, north edge of south chaparral patch. 274 Comment
  RSA0029780  Eriogonum nudum var. auriculatum Barbara J. Ertter, Delia Taylor 2003-6-22 18229 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, River View Loop Trail along Somersville Road north of park headquarters. 152 Comment
  UC2029055  Eriogonum nudum var. auriculatum Barbara Ertter with Delia Taylor 2003-6-22 18227 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, ridge south of Arata Overlook Trail NE of park headquarters east of Somerville Road. Comment
  UC2029144  Eriogonum nudum var. auriculatum Barbara Ertter with Delia Taylor 2003-6-22 18229 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, River View Loop Trail along Somersville Road north of park headquarters. Comment
  CAS-BOT-BC269815  Eriogonum nudum var. psychicola Walter Knight 1965-9-7 1175 Contra Costa Antioch sand dunes Comment
  RSA0033856  Eriogonum roseum Barbara Ertter, Tony Morosco 1998-9-18 16436 Contra Costa NE corner of Lime Ridge Open Space northwest of Mount Diablo. 182 Comment
  SBBG28221  Eriogonum roseum J. Ewan 1933-10-15 8022 Contra Costa Mt Diablo Comment
  JEPS105713  Eriogonum roseum David Gowen 2004-8-26 156 Contra Costa Black Diamond Mines Regional Preserve; 3/8 mi from parking area on Frederickson Lane, on Old Homestead Loop, just SW of its junction with the Homestead Trail Comment
  RSA39904  Eriogonum roseum P. A. Munz 1947-10-8 12207 Contra Costa Antioch 8 Comment
  CAS-BOT-BC267445  Eriogonum truncatum M. K. C. 1886-5-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC267446  Eriogonum truncatum M. K. Curran 1886-5-1 s.n. Contra Costa Antioch Comment
  LA207022  Eriogonum truncatum John Thomas Howell; 1934-4-8 11816 Contra Costa 10 mi. from Clayton on Marsh Creek Road Comment
  UC6492 Image available Eriogonum truncatum State Survey 1862-5-29 1186 Contra Costa Camp 71, Marsh's Ranch, Contra Costa Co. Comment
  UC692152  Eriogonum truncatum Mary L. Bowerman 1933-5-25 2198 Contra Costa Mount Diablo Comment
  UCR139461  Eriogonum truncatum J. T. Howell 1934-4-8 11816 Contra Costa San Francisco Bay Region, [Black Hills] 10 mi from Clayton [SE] on Marsh Creek Road 366 Comment
  CAS-BOT-BC262349  Eriogonum vimineum Mary L. Bowerman 1931-9-12 1038 Contra Costa Mount Diablo. Mitchell Canyon, spur jutting into west fork 838 Comment
  CAS-BOT-BC298507  Eriophyllum confertiflorum Alice Eastwood 1915-6-21 4739 Contra Costa San Leandro Comment
  UC691686  Eriophyllum confertiflorum var. confertiflorum Mary L. Bowerman 1933-5-18 2121 Contra Costa near Blackberry Spring; Mount Diablo Comment
  JEPS28851  Eriophyllum jepsonii unknown 1896-5-29 Contra Costa Mt. Diablo Comment
  UC196644  Eriophyllum jepsonii J. W. Congdon 1896-5-29 Contra Costa Mt. Diablo Comment
  UC691685  Eriophyllum jepsonii Mary L. Bowerman 1931-6-2 918 Contra Costa Gregory Ranch Road Comment
  UC2027777  Eriophyllum jepsonii Barbara Ertter, Holly Forbes 1997-4-20 15562 Contra Costa north base of Mount Diablo, Eagle Peak Trail on NE side of Eagle Ridge below Twin Peaks. Comment
  CAS-BOT-BC300970  Eriophyllum lanatum var. achilleoides E. E. Stanford 1930-5-24 1513 Contra Costa Marsh Creek Canyon Comment
  JEPS124456  Eriophyllum lanatum var. achilleoides Daniel Slakey with CNPS Volunteers 2015-6-13 131 Contra Costa Mt. Diablo State Park. Both above and below Burma Road; southwest-facing bank above fire trail. Comment
  UC31674  Eriophyllum lanatum var. achilleoides W. L. Jepson May 22 1891-May 23 1891 Contra Costa Mt. Diablo Comment
  UC691687  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1933-5-3 1979 Contra Costa due s of summit Meridian peak; Mt. Diablo, Meridian Peak 731 Comment
  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-BC300972  Eriophyllum lanatum var. achilleoides L. R. Abrams 1921-5-26 8003 Contra Costa Mt Diablo Comment
  CAS-BOT-BC300978  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1935-5-22 3066 Contra Costa Mount Diablo. Most westerly of the two ridges which converge at Twin Peaks (Eagle Point ridge) 365 Comment
  CAS-BOT-BC300981  Eriophyllum lanatum var. achilleoides Miss E. Cannon 1897-6-6 s.n. Contra Costa Pine Canyon, Mt. Diablo Comment
  JEPS34592  Eriophyllum lanatum var. achilleoides W. L. Jepson 1918-6-5 7608 Contra Costa on the n peak Mt. Diablo Comment
  POM301035  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1933-6-21 2339 Contra Costa Donner Canyon Comment
  RSA92293  Eriophyllum lanatum var. achilleoides F. W. Peirson 1923-7-1 4242 Contra Costa Short distance below summit of Mt. Diablo Comment
  UCSB6523  Eriophyllum lanatum var. arachnoideum Keator, Glenn 1959-7-1 Contra Costa 1/4 mile above Laurel camp on Mt. Diablo Comment
  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
  CAS-BOT-BC301910  Eriophyllum staechadifolium H. E. McMinn No date on label 139 Contra Costa Unspecified Comment
  CDA29179  Erodium botrys D. G. Kelch 2008-6-15 8 .246 Contra Costa Carquinez Strait; Crockett hills, S of Cummings Skyway, W of Crockett Blvd. Comment
  UCD150907  Erodium cicutarium James A. Neilson Jr. 1972-11-2 3604 Contra Costa Walnut Creek drainage at State Highway 4. Elevation estimated using Google Earth by label maker. 1 Comment
  UC202739  Erodium macrophyllum Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  UC571139  Erodium macrophyllum H. L. Mason 1929-3-15 5060 Contra Costa about 5 mi from Brentwood (Marsh Creek Road) Comment
  CHSC21643  Erodium moschatum Willis Ball 1975-3-2 463 Contra Costa Contra Loma Regional Park. In area #1. In island in middle of main parking lot on s side of lake. 38 Comment
  CHSC75094  Erodium moschatum Roger Thom 1987-5-26 17 Contra Costa 1900 block of Geary Rd. Walnut Creek. 30 Comment
  UC2032835  Erodium moschatum Doran, Andrew Scott 2012-3-20 705 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  CAS-BOT-BC211072  Eryngium Katharine Brandegee 1907-5-16 s.n. Contra Costa Antioch Comment
  POM312389  Eryngium aristulatum var. aristulatum S. Galen Smith, Peter Kamb, Francia Chisaki 1951-4-14 433 Contra Costa Small pond 7 miles north of Walnut Creek, east of Highway 21, 0.2 mile south intersection with Highway 4 Comment
  CDA38314  Eryngium jepsonii D. G. Kelch 2003-6-22 3 .091 Contra Costa Carquinez Strait Region; Pt. Costa - Shore: Above Pt. Costa (above road between McEwen and EBRP staging area). Comment
Read comments
Dec 13 2016
  CDA38316  Eryngium jepsonii D. G. Kelch 2002-5-13 2 .003 Contra Costa Carquinez Strait Region; Pt. Costa - Shore: Above Pt. Costa (above road between McEwen and EBRP staging area). Along old river channel. Comment
  UC1487327  Eryngium vaseyi Yusuf Sheikh 1974-5-5 587 B Contra Costa 2.1 mi. s.e. of Byron Post sign on rd. J4 Byron (3.1 mi. s.e. of intersection with Camino Diablo) Comment
  SEINET12118291  Eryngium vaseyi var. castrense L. Constance, Alava, R.; Bacigalupi, R. 1958-1 3661 Contra Costa 3 mi SE of Byron, San Joaquin Valley Comment
  UC1126603  Erysimum capitatum C. M. Belshaw 1936-5-8 2053 A Contra Costa se slope Mt. Diablo Quadrangle, Mt. Diablo (Plot 5) Comment
  UC691074  Erysimum capitatum Mary L. Bowerman 1935-4-26 2915 Contra Costa w ridge west of Indian Ceremonial Spring (just below Old Stage Rd); Mount Diablo 1005 Comment
  NY32656  Erysimum capitatum subsp. angustatum A. Eastwood 1936-4-19 2151 Contra Costa Antioch sand hills. Comment
  NY32659  Erysimum capitatum subsp. angustatum J. A. Ewan 1935-3-10 9142 Contra Costa Behind bluffs along Sacramento River at Antioch. Comment
  RSA39907  Erysimum capitatum var. angustatum P. A. Munz 1947-10-8 12205 Contra Costa Antioch 8 Comment
  UC10566  Erysimum capitatum var. capitatum J. Burtt Davy 1895-4-7 996 Contra Costa foothills Antioch Comment
  CAS-BOT-BC151467  Erythranthe latidens Alice Eastwood; John Thomas Howell 1936-4-19 2155 Contra Costa 4 miles s. of Antioch Comment
  UC2046327  Erythranthe nasuta Barbara Ertter with Alan Prather 2003-6-7 18210 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, Coyote Trail. Comment
  SD8242  Eschscholzia californica Michener, Biolett 1892-4-10 Contra Costa Byron Comment
  UC10007  Eschscholzia californica J. Burtt Davy April, 1897 Contra Costa Point Isabel Comment
  UC692180  Eschscholzia californica Mary L. Bowerman 1932-3-27 1144 Contra Costa near Mitchell Rock (on e side); Mount Diablo Comment
  CAS-BOT-BC5937  Eschscholzia recta Mary Katherine (Mrs.) Brandegee 1889-5-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC91578  Eschscholzia rhombipetala Brandegee 1889-4-1 s.n. Contra Costa Antioch. Comment
  UC186890  Eschscholzia rhombipetala E. L. Greene 1888-3-25 Contra Costa near Byron Comment
  OBI69745  Eucalyptus pulverulenta Jenn Yost & Matt Ritter, Matt Ritter 2008-11-15 362 Contra Costa Dan Sekella's House at 1410 Mohr Ct, Walnut Crk Comment
  UC1618208  Eucrypta chrysanthemifolia var. chrysanthemifolia Barbara Ertter 1991-6-1 10078 Contra Costa hills w Danville (e side of Wind Caves on Sycamore Trail to Devil's Hole); Las Trampas Regional Wilderness, Wind Caves 548 Comment
  CDA18900  Euphorbia oblongata V. Guise 2000-5-22 PDR 031724 Contra Costa East side of Bollinger Canyon Rd., San Ramon. 0 Comment
  CDA4844  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
  OBI5339  Euphorbia oblongata T. C. Fuller 1961-7-6 6585 Contra Costa On bench above crk, Alhambra Valley, hwy 4, 0.5 mi W of Glen Frazier Station, ca 4 mi W of Martinez Comment
  UCD142407  Euphorbia oblongata William E. Davis 1981-4-23 s.n. Contra Costa Martinez; along Franklin Creek in John Muir National Historic Site. Comment
  UC2029075  Euphorbia peplus Barbara Ertter 2000-7-16 17406 Contra Costa Pine Creek on WNW base of Mount Diablo, willow patch above Pine Pond. Comment
  UCD142475  Euphorbia peplus Terri Williamson 1990-5-22 68 Contra Costa Pleasant Hill, 212 Poshard Street. 12 Comment
  UC2027888  Euphorbia serpillifolia subsp. serpillifolia Barbara Ertter with Chris Thayer 1996-10-25 15359 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park. Comment
  UC2062611  Euphorbia spathulata Barbara Ertter 2003-3-28 18134 Contra Costa Round Valley Regional Preserve, mid Hardy Canyon along High Creek. 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
  UCD159505  Euthamia occidentalis D. S. Park 2010-9-11 253 Contra Costa Waterfront Rd. Growing in ditch along roadside. Disturbed. Wet. 5 Comment
  JEPS118744  Extriplex joaquinana Sarah Lynch 2012-8-1 s. n. Contra Costa Tassajara Valley (south of Danville); north of Camino Tassajara and west of Finley Road Comment
  CDA37846  Fallopia japonica Fonseca/Niang 2012-7-16 PDR# 1641164 Contra Costa El Sobrante; Circle Dr. 0 Comment
  CDA37818  Fallopia japonica Slate 2012-6-29 PDR# 1649771 Contra Costa Lafayette; southwestern corner of Village Center & Mt. Diablo Blvds. 0 Comment
  CDA32670  Festuca pratensis D. G. Kelch, Andrew G. Murdock 2004-5-7 4 .195 Contra Costa Carquinez Strait; Canada del Cierbo. Comment
  JEPS107107  Festuca rubra Barbara Ertter, Brad Olson 1994-5-7 12752 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  UC1103711  Festuca rubra J. P. Tracy 1900-3-24 615 Contra Costa Point Richmond San Francisco Bay Region 15 Comment
  UCD66330  Festuca rubra P. B. Kennedy 1919-5-1 s.n. Contra Costa North Berkeley. Hills. Comment
  SEINET10590890  Festuca rubra Barbara J. Ertter, B. Olson 1994-5-7 Ertter 12752 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge, edge of San Francisco Bay. Intact coastal prairies above bluff just south of park, between road and bay, with dense Festuca. Coastal form, tufted (a=on bluffs). Comment
  UC691899  Forestiera pubescens Mary L. Bowerman 1936-6-20 3414 Contra Costa w side of ridge w Mt. Zion; Mount Diablo 198 Comment
  CAS-BOT-BC223861  Frankenia salina Walter Knight; Irja Knight 1968-8-14 2418 Contra Costa On Contra Loma Drive, north side of road, Contra Loma Regional Park, near Antioch Comment
  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
  RSA518721  Frankenia salina Barbara Ertter, E. Neese 1988-10-15 7977 Contra Costa West of I-580 in El Cerrito, west side along Rydin Road north of Central Avenue. Comment
  CDA36612  Frankenia salina T. C. Fuller 1965-11-24 14322 Contra Costa South side of Byron Hot Springs Road, 0.6 mile southwest of Byron-Tracy Highway, ca. 1 mile southwest of Byron. 0 Comment
  CAS-BOT-BC223390  Fraxinus dipetala Mary L. Bowerman 1930-6-22 363 Contra Costa Mount Diablo. Mitchell Canyon Comment
  CAS-BOT-BC223392  Fraxinus dipetala H. E. McMinn 1922-10-1 407 Contra Costa Mitchell Canon [Canyon], Mt. Diablo Comment
  UC691855  Fraxinus dipetala Mary L. Bowerman 1935-6-1 3104 Contra Costa first small ridge e Mitchell-Pine divide; Mount Diablo 975 Comment
  UC691869  Fraxinus dipetala Mary L. Bowerman 1930-6-22 363 Contra Costa Mitchell Canyon Mount Diablo Comment
  JEPS112503  Fritillaria affinis A. G. Murdock 2004-4-30 262 Contra Costa Vaca Canyon 165 Comment
  CAS-BOT-BC130197  Fritillaria agrestis Niall McCarten; V. I. Dains 1986-1-1 03231251 13 Contra Costa W of Camino Diablo & Kellogg Creek Comment
  CAS-BOT-BC130353  Fritillaria liliacea Robert F. Hoover 1938-3-8 2819 Contra Costa Berkeley Country Club Comment
  SEINET196591  Fritillaria liliacea Robert F. Hoover 1938-3-8 2819 Contra Costa Berkeley Country Club. Comment
  CDA3560  Fumaria capreolata D. G. Kelch, A. G. Murdock 2005-5-23 5 .374 Contra Costa Carquinez Strait Region; Crockett - Crolona Heights. 6th Street at Lillian Street, Crockett. Comment
  UCR160111  Fumaria capreolata M. I. Wibawa 2003-3-1 331 Contra Costa San Francisco Bay Region, along sidewalk on corner of Junction Ave. and Hagen Blvd., El Cerrito 44 Comment
  UCD121557  Galium andrewsii P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UC1177368  Galium andrewsii subsp. gatense Peter H. Raven 1950-7-5 2478 Contra Costa near summit Mt. Diablo 1097 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
  UC691539  Galium aparine Mary L. Bowerman 1931-3-21 590 Contra Costa Sycamore Canyon Mount Diablo 335 Comment
  UCR263548  Galium californicum subsp. californicum Barbara Ertter, Susan D'Alcamo 1998-6-12 16202 Contra Costa San Francisco Bay Region, along Curry Canyon Road on south side of Mount Diablo, halfway between Knobcone Point Road and Sheepherder Springs Trail Comment
  JEPS14346  Galium murale L. T. Dempster 1956-4-28 1000 Contra Costa between Village and Crossroads (near creek); Orinda Comment
Read comments
Apr 21 2012
  RSA0029048  Galium murale Barbara Ertter 1999-6-12 16703 Contra Costa Black Hawk Ridge Road between Knobcone Point Road and NE fork of Sycamore Creek, South side of Mount Diablo. 457 Comment
  UC2012961  Galium murale Barbara Ertter with Travis Columbus 1990-6-10 9114 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill: near crossing on Spengler Trail NE of Briones Peak. 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
  UC691533  Galium porrigens Mary L. Bowerman 1935-5-16 2982 Contra Costa flat at end of road Mount Diablo, Russelman Park 381 Comment
  UC691551  Galium porrigens Mary L. Bowerman 1931-2-8 503 Contra Costa 4.5 mi by road from North Gate; Mount Diablo, Mineral Spring Comment
  JEPS41059  Galium porrigens var. porrigens Rimo Bacigalupi and L. R. Heckard 1965-5-11 9086 Contra Costa se Richmond; San Francisco Bay, Brooks Island 30 Comment
  JEPS6608  Galium porrigens var. porrigens Mary L. Bowerman 1930-6-22 370 Contra Costa Deer Flat Mount Diablo Comment
  JEPS99945  Galium porrigens var. porrigens G. Smick 2003-2-20 GAS 51 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS112104  Galium spurium D. G. Kelch 2003-3-21 03 .76 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  CAS-BOT-BC304348  Gamochaeta pensylvanica Walter & Irja Knight 1967-6-12 s.n. Contra Costa Charles Lee Tilden Regional Park. In the botanical garden 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-BC200627  Garrya elliptica Mary L. Bowerman 1933-3-11 1746 Contra Costa Fossil Ridge, knoll south of 1778 point Comment
  UCD121109  Garrya elliptica Beecher Crampton 1957-11-20 4651 Contra Costa Berkeley Hills. Contra Costa- Alameda County line. Comment
  CAS-BOT-BC169947  Garrya fremontii Mary L. Bowerman 1930-6-7 s.n. Contra Costa Meridian Peak Summit Comment
  CDA28816  Gastridium phleoides D. G. Kelch, Abigail Moore, Jessica Kolman 2009-5-3 9 .316 Contra Costa Carquinez Strait; Crockett; on hill south of 5th St. with transmission tower on sandstone outcrop. Comment
  UC692392  Gastridium ventricosum Mary L. Bowerman 1933-5-25 2190 Contra Costa Oyster Ridge, w end of s face Mount Diablo; , Oyster Ridge, w end of s face Comment
  UC1057453  Geranium dissectum G. Thomas Robbins 1937-4-25 142 Contra Costa e of La Vista Comment
  UC1795111  Geranium rotundifolium Barbara Ertter 1996-6-4 14684 Contra Costa Tilden Regional Park in hills E of Berkeley, restoration site NE of junction of Grizzly Peak Boulevard and Golf Course Drive Comment
  RSA0029580  Geranium rotundifolium Barbara Ertter 1996-6-4 14684 Contra Costa Tilden Regional Park in hills east of Berkeley, restoration site northeast of junction of Grizzly Peak Boulevard and Golf Course drive. Comment
  SEINET12343273  Gilia Ottley 1920-3-6 210 Contra Costa Black Hills, San Francisco Bay region Comment
  UCD164885  Gilia achilleifolia Henry House 1995-4-30 1995- 10 Contra Costa About 1.2 km west of Walnut Blvd., ca. 0.5 km south of Marsh Creek Rd. 60 Comment
  JEPS30770  Gilia achilleifolia subsp. achilleifolia G. Thomas Robbins 1937-4-17 122 Contra Costa w facing slope near Point Richmond; near Point Richmond Comment
  UC106854  Gilia achilleifolia subsp. achilleifolia C. F. Baker 1903-4-28 2951 Contra Costa Mt. Diablo, Mitchell Canyon Comment
  UC1301136  Gilia achilleifolia subsp. achilleifolia Helen K. Sharsmith 1962-4-18 4959 Contra Costa near canyon; San Francisco Bay Region 152 Comment
  UC2031458  Gilia achilleifolia subsp. achilleifolia Barbara Ertter with David Gowen 2014-4-12 21716 Contra Costa On north side of Prospectors Gap Road ca. 1 mile east of Mount Diablo summit Comment
  UC691602  Gilia achilleifolia subsp. multicaulis Mary L. Bowerman 1930-6-7 286 Contra Costa summit of Meridian Peak Mt. Diablo, Meridian Peak Comment
  UC963984  Gilia achilleifolia subsp. multicaulis R. F. Hoover 1941-4-11 4831 Contra Costa Marsh Creek Canyon Comment
  POM202474  Gilia capitata subsp. staminea L. S. Rose 1933-4-17 33090 Contra Costa Antioch. Comment
  RSA276842  Gilia capitata subsp. staminea James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  UC23834  Gilia capitata subsp. staminea W. H. Brewer 1800-1 1118 Contra Costa n Kirker Pass; n of Kirker Pass Comment
  UC908108  Gilia capitata subsp. staminea Herbert L. Mason 1929-3-31 5159 Contra Costa Antioch; San Joaquin River Comment
  RSA469347  Gilia capitata subsp. staminea H. de Forest 1930-5-6 s.n. Contra Costa [Unspecified] Comment
  JEPS85758  Gilia clivorum Roy E. Buck 1989-3-11 1102 Contra Costa 9 air km se Walnut Creek (ca 2.0 air km w of Moses Rock Spring, sw-facing slope on n side of North Gate Rd, 0.3 road mi se of park boundary); Mt. Diablo State Park 207 Comment
  POM223334  Gilia clivorum L. S. Rose 1935-5-16 351 75 Contra Costa Mt. Diablo. Comment
  RSA14955  Gilia clivorum L. S. Rose 1935-5-16 351 75 Contra Costa Mt. Diablo. Comment
  UC575672  Gilia clivorum Lewis S. Rose 1935-5-16 35175 Contra Costa Mt. Diablo Comment
  UC691674  Gilia clivorum Mary L. Bowerman 1935-4-17 2827 Contra Costa West Road 2 mi from entrance (( = North Road), Mount Diablo); Mount Diablo, West Road (=North Road) 237 Comment
  UC691676  Gilia clivorum Mary L. Bowerman 1935-4-26 2920 Contra Costa Summit Mount Diablo Mount Diablo, summit 1158 Comment
  UC2027715  Gilia clivorum Barbara Ertter with Stu Garrett 1997-3-29 15524 Contra Costa West side Mount Diablo, Burma Road above North Gate Road. Comment
  UC449815  Gilia tricolor subsp. diffusa Chestnut and Drew 1889-4-16 Contra Costa Clayton Comment
  UC52505  Gilia tricolor subsp. tricolor H. M. Hall 1901-4-5 1727 Contra Costa Mt. Diablo Region of San Francisco Bay, Mt. Diablo 411 Comment
  UC691598  Gilia tricolor subsp. tricolor Mary L. Bowerman 1931-3-14 569 Contra Costa Windy Point Mount Diablo, Windy Point Comment
  CAS-BOT-BC266489  Githopsis diffusa Alice Eastwood 1915-5-30 s.n. Contra Costa Mount Diablo Comment
  JEPS11821  Githopsis diffusa subsp. robusta Mary L. Bowerman 1931-5-16 851 Contra Costa Meridian Peak summit Mount Diablo Comment
  UC1784219  Glycyrrhiza lepidota Ethel Crum 1930-9-29 856 Contra Costa Marsh Creek Road to Holt Comment
  CDA5881  Gnaphalium californicum D. G. Kelch, A. G. Murdock 2005-6-24 5 .382 Contra Costa Carquinez Strait Region; 5th Street Prairie, Crockett. Comment
  CDA6000  Gnaphalium canescens subsp. beneolens D. G. Kelch, A. G. Murdock 2004-7-16 4 .318 Contra Costa Carquinez Strait Region; Martinez-South: Pine Street entrance to Route 4 heading west. Comment
  CDA28927  Gnaphalium luteoalbum D. G. Kelch, Abigail Moore, Jessica Kolman 2009-5-3 9 .318 Contra Costa Carquinez Strait; W of 5th St Prairie, Crockett. 0 Comment
  RSA721589  Gnaphalium luteoalbum Mary L. Bowerman 1978-6-24 s.n. Contra Costa Mount Diablo. Mitchell Creek, below 'reservoir' 191 Comment
  JEPS20443  Gnaphalium palustre W. L. Jepson May 23 1891-May 24 1891 14746 Contra Costa near Mt. Diablo Comment
  UC697200  Gnaphalium palustre Mary L. Bowerman 1935-6-28 3168 Contra Costa s of summit Mount Diablo (by Old Government trail); , Chase Pond 548 Comment
  CHSC99194  Grindelia camporum var. camporum John Dittes 2006-10-26 1416 Contra Costa San Joaquin Valley (foothills near nw edge); ~2.0 air-miles 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
  CAS-BOT-BC305244  Grindelia hirsutula Walter Knight; I. Knight; E. McClintock; J. T. Howell; S. Rae; B. Doyle 1978-9-5 3210 Contra Costa Browns Island. Botany Cove Comment
  JEPS120269  Grindelia hirsutula Barbara Ertter with David Gowen 2012-6-9 21023 Contra Costa at junction of Seaview Trail and road into EBMUD land north of Vollmer Peak, southeastern Tilden Park in Berkeley Hills Comment
  JEPS25017  Grindelia hirsutula G. Thomas Robbins 1958-10-2 3941 Contra Costa just w Carlson Blvd. (near Stege railroad siding, along Southern Pacific Railroad); Richmond Comment
  UC1118567  Grindelia hirsutula C. M. Belshaw 1936-5-15 2127 Contra Costa 2 1/2 mi nw Lone Tree Valley; Mt. Diablo Quad. Comment
  CAS-BOT-BC305221  Grindelia hirsutula J. T. Howell 1930-9-28 5496 Contra Costa Liberty School on Marsh Creek Road Comment
  CAS-BOT-BC305231  Grindelia hirsutula John Thomas Howell 1929-7-7 4322 Contra Costa 2 miles south of Rodeo Comment
  POM193965  Grindelia hirsutula var. davyi J. T. Howell 1929-7-7 4332 Contra Costa 2 miles S of Rodeo. Comment
  POM181442  Guillenia lasiophylla I. L. Wiggins 1930-4-17 4564 Contra Costa One mile east of Mountain House, on road to Byron. Comment
  RSA201182  Gutierrezia californica Peter Rubtzoff 1954-9-14 1750 Contra Costa Sand dunes along lower San Joaquin River, east of Antioch. Comment
  UC912309  Gutierrezia californica Herbert L. Mason 1929-9-21 5435 Contra Costa 3 mi above Clayton (Marsh Creek Road) Comment
  UC1050012  Hebe speciosa N. Floy Bracelin 1941-8-3 1537 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  UCD159534  Hedypnois cretica D. S. Park 2011-4-13 282 Contra Costa east side of Sunrise Hill Rd. Abundant. Not in flower/basal rosette. Disturbed/weedy habitat. Hillside. 181 Comment
  RSA721203  Hedypnois cretica Barbara Ertter, Mary L. Bowerman 1995-6-11 14249 Contra Costa Shell Ridge Recreation Area southwest of Walnut Creek, at west base Mt.Diablo; near Indian Valley School entrance. 91 Comment
  JEPS22068  Helenium puberulum G. Thomas Robbins 1958-7-19 3901 Contra Costa about one-half mi e Point San Pablo (meadow overlooking Pt. San Pablo); Richmond Comment
  CAS-BOT-BC309407  Helenium puberulum John Thomas Howell; Gordon H. True 1972-6-29 48932 Contra Costa On Byron Hot Springs Road southeast of Byron Comment
  CDA6433  Helenium puberulum T. C. Fuller 1958-7-3 1270 -58 Contra Costa Carquinez Strait; Highway 4, 4 miles west of Martinez. 0 Comment
  CAS-BOT-BC305331  Helianthella castanea H. M. Hall 1916-5-31 10137 Contra Costa Mt. Diablo, north slope of summit 1158 Comment
  JEPS112743  Helianthella castanea Dean W. Taylor 2001-3-21 17614 Contra Costa Mount Diablo; Mount Diablo State Park, near Balancing Rock (ridge forming southerly watershed boundary Curry Creek Canyon), along fire road descending from ridge into Devils Slide (East Fork Sycamore Creek) 457 Comment
  UC194924  Helianthella castanea H. M. Hall 1916-5-31 10137 b Contra Costa exposed flat on s side Mt. Diablo 1066 Comment
  UCD132760  Helianthella castanea H. A. Stout; T. C. Wainwright 1980-3-27 1 Contra Costa Mallory Ranch, around 1 mile east of Morgan Territory road. 621 Comment
  UC2028219  Helianthella castanea Barbara Ertter with Christopher Baysdorfer 1998-5-10 16127 Contra Costa West side Lime Ridge Open Space northwest of Mount Diablo. Comment
  UC521719  Helianthus californicus Joseph Andorfer Ewan 1933-10-15 8037 Contra Costa sw slope Mount Diablo (along open creek bed or burned area) Comment
  UC1795663  Helianthus californicus Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14628 Contra Costa Little Pine Creek at northwest foot of Mt. Diablo, along trail connecting North Gate Road to Castle Rock Road, Diablo Foothills Regional Park; along stream above stable, riparian vegetation. 91 Comment
  JEPS99485  Helianthus gracilentus Mary Bowerman 1995-5-21 Contra Costa Mount Diblo. Wall Pt. Trail ca. 1/2 mi. E of Wall Pt. Comment
  UC2070510  Helianthus gracilentus Barbara Ertter with Dan Norris 2001-4-8 17587 Contra Costa Lime Ridge Open Space east of Walnut Creek. Comment
  UC1795840  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
  JEPS111836  Heliotropium curassavicum A. G. Murdock 2004-6-4 327 Contra Costa Pacheco Marsh Near shore on back of dikes 2 Comment
  UC1084508  Heliotropium curassavicum G. Thomas Robbins 1940-5-19 330 Contra Costa roadside between Antioch and Rio Vista Rio Vista Comment
  UC691497  Helminthotheca echioides Mary L. Bowerman 1936-8-8 3524 Contra Costa w fork Diablo Stock Farm Canyon (= Emmons Cayon, Wattis Ranch); Mount Diablo, Diablo Stock Farm (Wattis Ranch) Canyon, w for Comment
  UCD159356  Helminthotheca echioides D. S. Park 2010-6-22 141 Contra Costa Wildwood canyon. Along trailside. Abundant along length of trail. Also growing out of pavement. 55 Comment
  CAS-BOT-BC305873  Helminthotheca echioides R. E. Frenkel 1964-6-20 593 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  UC201231  Hemizonia congesta subsp. lutescens H. M. Hall 1914-8-23 9860 Contra Costa 2 km nw San Pablo 9 Comment
  CDA7025  Hemizonia congesta subsp. luzulifolia D. G. Kelch, A. G. Murdock 2004-7-9 4 .294 Contra Costa Carquinez Strait Region; Crockett - Carquinez Scenic Drive. East of Crockett West of Bull Valley SA. Comment
  UC570418  Hemizonia congesta subsp. luzulifolia Chas. M. Belshaw 1936-10-26 2722 Contra Costa fallow fields near Walnut Creek; Coast Ranges Comment
  CAS-BOT-BC314854  Hemizonia congesta subsp. luzulifolia L. R. Abrams 1910-10-9 4358 Contra Costa Between San Ramon and Dublin Comment
  CAS-BOT-BC314867  Hemizonia congesta subsp. luzulifolia John Thomas Howell 1955-8-24 30900 Contra Costa Near Diablo Country Club Comment
  CAS-BOT-BC314874  Hemizonia congesta subsp. luzulifolia Walter Knight 1978-8-8 3109 Contra Costa On s.e. corner of Interstate 80 and Appian Way, near Pinole Comment
  OBI16205  Hemizonia congesta subsp. luzulifolia Robert F. Hoover 1966-8-31 9947 Contra Costa N of Livermore Valley on Highland rd Comment
  CDA6977  Hemizonia corymbosa D. G. Kelch, A. G. Murdock 2004-5-7 4 .179 Contra Costa Carquinez Strait; Canada del Cierbo. Comment
  RSA81659  Hemizonia kelloggii James I. McMurphy 1908-10-18 Contra Costa Antioch Comment
  RSA81667  Hemizonia parryi subsp. congdonii James I. McMurphy 1909-9-24 s.n. Contra Costa San Ramon Comment
  RSA81617  Hemizonia pungens subsp. maritima James I. McMurphy 1909-5-20 s.n. Contra Costa Antioch. Comment
  POM181072  Hemizonia pungens subsp. pungens J. T. Howell 1930-9-28 5489 Contra Costa 2 miles from Concord on road to Walnut Creek. Comment
  POM53580  Hemizonia pungens subsp. pungens C. F. Baker 1903-4-27 2875 Contra Costa Byron. Comment
  JEPS33797  Hesperevax sparsiflora W. L. Jepson 1923-4-22 9864 Contra Costa Mt. Diablo Comment
  UC697201  Hesperevax sparsiflora var. sparsiflora Mary L. Bowerman 1933-4-15 1850 Contra Costa canyon s of Arroyo del Cerro; Mount Diablo Comment
  CDA18901  Hesperis matronalis V. Guise 2000-5-22 PDR 031723 Contra Costa on the east side of Tassajara Rd., Danville. 0 Comment
  JEPS111922  Hesperocnide tenella Dean G. Kelch and Andrew G. Murdock 2004-3-5 AGM 213 Contra Costa Martinez - Rankin Open Space. Comment
  CAS-BOT-BC167431  Hesperolinon breweri Helen K. Sharsmith 1947-6-2 3947 Contra Costa Headwaters of Marsh Creek, on shale (?) 0.6 miles from summit of Clayton-Tassajaro-Livermore Road, Mount Diablo 304 Comment
  POM304529  Hesperolinon breweri J. T. Howell 1942-7-19 s.n. Contra Costa Northeast of Deer Flat, Mount Diablo Comment
  POM86814  Hesperolinon breweri Katherine Brandegee 1907-6-16 s.n. Contra Costa Hills betweeen Antioch and Marsh Creek, on easterly side of Mt. Diablo Comment
  CAS-BOT-BC167444  Hesperolinon breweri Walter Knight; Irja Knight 1973-5-31 s.n. Contra Costa In the Nortonville coal mine area 341 Comment
  JEPS122859  Hesperolinon californicum Adam C. Schneider with C. Matt Guilliams 2014-5-29 444 Contra Costa Alongside Blackhawk Ridge Trail, south of its divergence from Knobcone Pine Trail. Comment
  SJSU764  Hesperolinon californicum D. Bernsdorf 1942-5-30 Contra Costa Mt Diablo Comment
  UC692700  Hesperolinon californicum Mary L. Bowerman 1933-6-14 2275 Contra Costa Inner Black Hills e Knobcone Point; Mount Diablo Comment
  CAS-BOT-BC175985  Hesperolinon californicum Mary L. Bowerman 1935-6-28 3160 Contra Costa Inner Black Hills near canyon bottom (opposite old government trail to Chase Pond). Mount Diablo 457 Comment
  CAS-BOT-BC175986  Hesperolinon californicum Mary L. Bowerman 1935-6-28 3160 Contra Costa Inner Black Hills near canyon bottom (opposite old government trail to Chase Pond). Mount Diablo 457 Comment
  JEPS99502  Hesperolinon micranthum Mary L. Bowerman 1978-5-14 Contra Costa Mount Diablo. Old wagon trail to mine on E face of Eagle Peak Comment
  CAS-BOT-BC422504  Hesperomecon linearis W. R. Ernst 1958-3-26 214 Contra Costa Between Antioch and the Antioch bridge. Comment
  JEPS75475  Heteromeles arbutifolia P. F. Yorks 1975-7-18 479 Contra Costa ca 1.5 km s Bear Creek Rd on Hampton Rd in Hampton Road Natural Preserve (n of Briones Reservoir) 175 Comment
  JEPS99982  Heteromeles arbutifolia G. Smick 2003-2-20 GAS 50 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  OBI7752  Heteromeles arbutifolia Dennis Voight 1975-11-26 22 Contra Costa Found in the Briones reservoir area 1.5 mi E of Bear Creek rd 152 Comment
  JEPS20381  Heterotheca grandiflora Joseph P. Tracy 1932-9-10 10783 Contra Costa e of Pinole (on Franklin Canyon Road); Rodeo Creek 91 Comment
  UC1584840  Heterotheca grandiflora Jerry Powell 1990-3-9 1574 Contra Costa Antioch National Wildlife Refuge Comment
  UCD150891  Heterotheca grandiflora James A. Neilson Jr. 1972-11-2 3678 Contra Costa Walnut Creek drainage at State Highway 4. Elevation estimated using Google Earth by label maker. 1 Comment
  JEPS125919  Heterotheca sessiliflora subsp. bolanderi D. W. Taylor 2001-9-18 17913 Contra Costa Hillslopes above Kirker Pass road, drainage of Kirker Creek, along Nortonville Road directly under high-voltage steel tower electrical transmission lines. Comment
  UC615565  Heterotheca sessiliflora subsp. echioides Beryl O. Schreiber 1933-10-5 940 Contra Costa Mount Diablo Comment
  CAS-BOT-BC311213  Heterotheca sessiliflora subsp. echioides Walter Knight 1965-9-7 1166 Contra Costa Antioch sand dunes Comment
  RSA39828  Heterotheca sessiliflora subsp. echioides P. A. Munz 1947-10-8 12189 Contra Costa Antioch 12 Comment
  CAS-BOT-BC310908  Heterotheca villosa Niall McCarten; V. I. Dains 1986-1-1 04311257 81 Contra Costa East Contra Costa County. SW corner of Hwy. 4 & Laurel Road near Oakley Comment
  JEPS49731  Heuchera micrantha W. L. Jepson 1922-5-23 9649 Contra Costa Mt. Diablo Comment
  UC625365  Hibiscus lasiocarpos Ira L. Wiggins 1938-8-15 9006 Contra Costa at Hwy. #4 Old R.; San Joaquin R., Old R. <branch of San Joaquin R.> Comment
  CAS-BOT-BC203373  Hibiscus lasiocarpos var. occidentalis Virginia I. Dains; Walter Knight 1986-8-8 5499 Contra Costa Jct Rock S1 & Warner Cut Comment
  UC691430  Hieracium albiflorum Mary L. Bowerman 1933-6-14 2282 Contra Costa crest Inner Black Hills (Mount Diablo); Mount Diablo Comment
  CDA7976  Holocarpha heermannii D. G. Kelch, A. G. Murdock 2003-8-13 3 .129 Contra Costa Carquinez Strait Region; Pig Sale Comment
  CDA8362  Holocarpha heermannii D. G. Kelch, A. G. Murdock, M. K. Herzenach 2004-9-2 4 .329 Contra Costa Carquinez Strait; Near Summit of Mckewan Rd between Port Costa and I-4. Comment
  JEPS111679  Holocarpha heermannii D. G. Kelch 2003-8-13 03 .129 Contra Costa Pig Sale 250 Comment
  JEPS12900  Holocarpha heermannii L. S. Rose 1941-10-13 41465 Contra Costa 1 mi e of Walnut Creek 50 Comment
  SBBG33459  Holocarpha heermannii A. D. E. Elmer -Jul-1903 Contra Costa Mount Diablo Comment
  SEINET5782138 Image available Holocarpha heermannii L. S. Rose 1941-10-13 41465 Contra Costa 1 mi E of Walnut Creek Comment
  UC1069572  Holocarpha heermannii H. S. Yates 1934-9-2 4085 Contra Costa 2 mi s Mt. Diablo; Mt. Diablo Quadrangle Comment
  CAS-BOT-BC320201  Holocarpha heermannii John Thomas Howell 1955-8-24 30901 Contra Costa Near Diablo Country Club Comment
  CAS-BOT-BC325845  Holocarpha heermannii David D. Keck 1933-11-2 2622 Contra Costa 5 mi. E. of Clayton on Marsh Creek Road just opposite Mt. Diablo Comment
  CAS-BOT-BC325846  Holocarpha heermannii Walter Knight 1978-9-16 3271 Contra Costa Briones Regional Park near Maricich Lagoon Comment
  RSA298252  Holocarpha heermannii Joseph A. Ewan 1933-10-15 8045 Contra Costa South slope of Mt. Diablo 1067 Comment
  RSA81664  Holocarpha heermannii James I. McMurphy 1909-9-25 s.n. Contra Costa Below Alamo. Comment
  UCD133195  Holocarpha heermannii Ann F. Johnson 1978-8-19 s.n. Contra Costa Mt. Diablo State Park. Trail from Juniper Camp to Deer Flat. 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
  UCD133201  Holocarpha macradenia Walter Knight; Irja Knight 1978-8-8 3101 Contra Costa southeast corner of Interstate 80 and Appian Way, 1 mile north of El Sobrante. Comment
  OBI48592  Holocarpha obconica Lewis S. Rose 1932-10-2 32654 Contra Costa Marsh Crk Rd Comment
  CAS-BOT-BC320254  Holocarpha obconica David D. Keck 1933-11-2 2621 Contra Costa Deer Valley, 1/2 mi. S. of road to Brentwood Comment
  SEINET7545173  Holocarpha obconica subsp. autumnalis D. D. Keck, J. Clausen 1933-1 2567 Contra Costa 1.6 mi.W. of Byron, 1.4 mi. from jct with Vasco Rd. Comment
  CAS-BOT-BC320326  Holocarpha virgata David D. Keck 1933-11-2 2620 Contra Costa Horse Valley between Lone Tree Way and Marsh Creek Road, 6 miles from Antioch Comment
  CAS-BOT-BC324612  Holocarpha virgata David D. Keck 1933-11-2 2623 Contra Costa 5 miles east of Clayton on Marsh Creek Road just opposite Mt. Diablo Comment
  CAS-BOT-BC324618  Holocarpha virgata John Thomas Howell 1930-9-28 5502 Contra Costa On the Marsh Creek Road 5.4 miles from Byron Comment
  UC1069564  Holocarpha virgata subsp. virgata G. T. Nordstrom 1937-10-28 1407 Contra Costa 1.6 mi nne Somersville; Mt. Diablo Quad. 188 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
  UCD159359  Holozonia filipes D. S. Park 2010-6-22 144 Contra Costa Wildwood canyon, along trailside. Grassland. Abundant. 97 Comment
  JEPS100015  Hordeum brachyantherum S. O'Neil 2003-5-8 SEO 34 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD85488  Hordeum brachyantherum Beecher Crampton 1956-5-14 3413 Contra Costa 1 mile east of Pacheco, Buchanan Field. Comment
  RSA0016873  Hordeum brachyantherum H. de Forest 1930-5-7 s.n. Contra Costa Road near Morage. Comment
  JEPS41058  Hordeum brachyantherum subsp. brachyantherum Rimo Bacigalupi and L. R. Heckard 1965-5-11 9087 Contra Costa sw Richmond (Brooks Island, San Francisco Bay); San Francisco Bay, Brooks Island Comment
  UC50661  Hordeum brachyantherum subsp. brachyantherum Jos. Burtt Davy 1899-4-19 7850 Contra Costa Las Trampas Ridge Comment
  CAS-BOT-BC281255  Hordeum brachyantherum subsp. brachyantherum R. E. Frenkel 1964-4-29 461 Contra Costa 0.2 mile west of Bixler Road on Balfour Road 6 Comment
  CAS-BOT-BC281256  Hordeum brachyantherum subsp. brachyantherum R. E. Frenkel 1964-2-24 377 Contra Costa On Giant Road at its junction with Atlas Road, Richmond 16 Comment
  UC2028961  Hordeum depressum Barbara Ertter with Brad Olson et al. 2000-6-2 17304 Contra Costa Brushy Peak Regional Preserve NE of Livermore, at south base of Brushy Peak. Comment
  UCD85917  Hordeum murinum subsp. glaucum A. A. Beetle 1942-3-22 2924 Contra Costa Taber Island. Small island off NW side of Brooks Island in San Francisco Bay. Comment
Read comments
Aug 20 2011
  UCD86141  Hordeum murinum subsp. glaucum Beecher Crampton 1956-5-14 3375 Contra Costa 5 miles south of Antioch. At head of Horse Valley. Comment
Read comments
Aug 17 2011
  CAS-BOT-BC284778  Hordeum murinum subsp. glaucum Mary L. Bowerman 1933-5-17 2097 Contra Costa Mount Diablo. Branch of Curry Canyon due south of Olafsons' barn Comment
  UC697126  Hordeum murinum subsp. leporinum Mary L. Bowerman 1933-5-8 2003 Contra Costa s face Fossil Ridge not far from but out of sight of South Entrance Mount Diablo; , s face Fossil Ridge 289 Comment
  UC2062663  Horkelia californica subsp. frondosa Barbara Ertter 1990-5-19 8993 Contra Costa Lafayette Ridge of Briones Regional Park N of Lafayette; head of drainage on N side of ridge. 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
  UC1619916  Hydrocotyle verticillata Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10863 Contra Costa just w. Antioch marina (along levee at water's edge, accessed from marina, Dow Wetlands Preserve); Dow Wetlands Preserve Comment
  UC1795762  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, mud on riprap. Comment
  CAS-BOT-BC401301  Hypericum scouleri L. R. Abrams 1910-10-8 4347 Contra Costa Mt Diablo 914 Comment
  UC2028113  Hypochaeris glabra Barbara Ertter with Christopher Baysdorfer 1998-5-10 16108 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, roadside not far from Valley Vista trailhead. Comment
  CAS-BOT-BC311406  Hypochaeris radicata Goodwin; Bellue 1932-5-6 s.n. Contra Costa Unspecified Comment
  RSA0013874  Ibicella lutea G. Thomas Robbins 1959-8-1 4114 Contra Costa Recently completed frontage road just south of Mt. Diablo Blvd. (about 0.5 mi. E of concrete bridge at Charles Hill and about 0.2 mi. W of junction of Hidden Valley Road), about 2 mi. W of Lafayette. 145 Comment
  UC1005861  Ilex aquifolium N. Floy Bracelin 1944-5-13 2690 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  IRVC14051  Iris douglasiana J. Lanier 1967-5-14 s.n. Contra Costa Tilden Park. Comment
  UC1789186  Iris foetidissima Barbara Ertter 2000-5-20 17025 Contra Costa Sibley Volcanic Regional Preserve, Oakland Hills, trail on ridge behind interpretative center. Comment
  CAS-BOT-BC324753  Iva axillaris Morris Halperin 1930-5-20 s.n. Contra Costa Hoffman Ranch, Brentwood Comment
  SEINET11261292  Jaumea carnosa Barbara Ertter, Elizabeth Neese 1988-10-15 7975 Contra Costa Salicornia marsh W of I-580 in El Cerrito, W side along Rydin Road N of Central Avenue.; 0 Comment
  SEINET1910273  Jaumea carnosa Barbara Ertter, Elizabeth Neese 1988-1 7975 Contra Costa Salicornia marsh @ of I-580 in El Cerrito, W side along Rydin Road N of Central Avenue. Comment
  CHSC93646  Juglans californica var. hindsii Paul Kirk; Joe Callizo 2001-10-8 7 Contra Costa City of Lafayette Community Park, along Grizzly Cr. drainage on W side of Las Trampas Cr., 30 m downstream from culvert under Silverado Dr. 128 Comment
  JEPS46455  Juglans californica var. hindsii W. L. Jepson 1908-8-16 3087 Contra Costa Walnut Creek Comment
  JEPS58697  Juglans californica var. hindsii W. L. Jepson 1909-4-30 3114 Contra Costa in the sharp gulch upper Walnut Creek, Burton Ranch Comment
  CAS-BOT-BC102308  Juglans hindsii L. R. Abrams 1916-7-29 6306 Contra Costa Walnut Creek Comment
  SJSU6440  Juglans hindsii C. O. Dudley 1966-5-8 109 Contra Costa Reliez Valley, Briones Hills, N of Lafayette 152 Comment
  UC2028428  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
  UC1607650  Juncus balticus Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10704 Contra Costa opposite of Pittsburg Marina (center of w end of Browns Island, n of Pittsburg, near confluence of Sacramento and San Joaquin Rivers); Browns Island Comment
  UC1619919  Juncus balticus Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10681 Contra Costa n Pittsburg (near confluence of Sacramento and San Joaquin Rivers opposite Pittsburg Marina, marsh at edge of lagoon in center of w end of island); Browns Island Comment
  JEPS112443  Juncus bufonius D. G. Kelch 2004-4-11 04 .60 Contra Costa Crockett - 5th St. Prairie 5th street Prairie, Crockett 85 Comment
  POM300637  Juncus bufonius Mary L. Bowerman 1933-4-22 1885 Contra Costa Northwest end of Shell Ridge, south of highway (Heather Farm). Comment
  UC2028264  Juncus bufonius var. bufonius Barbara Ertter 1999-6-12 16716 Contra Costa West Branch Alamo Creek on south flank of Mount Diablo, along unofficial path running from north spur of Black Hawk Ridge Road to south spur off of Knob Cone Point Road (near powerline). Comment
  JEPS112445  Juncus effusus var. pacificus D. G. Kelch 2003-8-13 03 .133 Contra Costa Pinole Creek 68 Comment
  CDA39196  Juncus effusus var. pacificus H. R. Van Brocklin 1962-5-21 s.n. Contra Costa H. Van Brocklin prop., 1895 Almond Ave., Walnut Creek. 0 Comment
  JEPS113079  Juncus gerardi Barbara Ertter, Steve Matson 2003-5-31 18175 Contra Costa Martinez Regional Shoreline, brackish marsh along Pickleweed Trail west of Arch Bridge, Comment
  SD241642  Juncus gerardi subsp. gerardi Barbara Ertter, Steve Matson 2003-5-31 18175 Contra Costa Martinez Regional Shoreline, brackish marsh along Pickleweed Trail west of Arch Bridge. Comment
  SEINET3880409  Juncus nevadensis Kaye H. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4980 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough. SE portion of Bethel Slough.; 0 610 Comment
  UC1601775  Juncus occidentalis Jos. Burtt Davy 1897-4-17 Contra Costa Point Isabel Comment
  SEINET6174578  Juncus patens M. L. Bowerman 1932-11-26 1674 Contra Costa Patens Spring (on north side of west road between Corral Spring and Boulevard Spring) Comment
  UC691912  Juncus patens Mary L. Bowerman 1938-6-30 3703 Contra Costa Lower Spring Canyon Mount Diablo 975 Comment
  JEPS102895  Juncus phaeocephalus var. paniculatus Barbara Ertter 1998-5-3 16061 Contra Costa below Stage Road SE of Turtle Rock ponds Mount Diablo 304 Comment
  UC1601855  Juncus xiphioides J. Burtt Davy 1897-9-4 4076 Contra Costa Stege Comment
  UC2670  Juncus xiphioides W. H. Brewer 1861-9-25 838 Contra Costa halfway up Monte Diablo from Mission San Jose; Mount Diablo Comment
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Jan 15 2012
  UC691978  Juncus xiphioides Mary L. Bowerman 1932-11-12 1648 Contra Costa Pine Spring Mount Diablo Comment
  JEPS48238  Juniperus californica W. L. Jepson 1918-6-5 7617 Contra Costa North Peak, Mt. Diablo Mt. Diablo, North Peak 822 Comment
  RSA352511  Juniperus californica Mark Morris 1929-03 s.n. Contra Costa Mt. Diablo. Comment
  UC558454  Juniperus californica C. M. Belshaw 1936-10-25 2021 Contra Costa 0.75 mi ne of North Peak; Mount Diablo 609 Comment
  UC77  Juniperus californica Harley P. Chandler 1901-4-5 980 A Contra Costa Mt. Diablo Comment
  SEINET10531625  Juniperus californica Lewis S. Rose 1936-11-22 Rose 36781 Contra Costa Mt. Diablo. Dry slopes. 760 Comment
  UCD38576  Koeleria macrantha Beecher Crampton 1956-5-14 3394 Contra Costa 3.7 miles southeast of Clayton. Comment
  CAS-BOT-BC273614  Koeleria pyramidata Mary L. Bowerman 1933-5-2 1962 Contra Costa Mount Diablo. Below Pioneer Camp 762 Comment
  RSA74883  Lactuca serriola Elroy Robinson 1935-9-14 s.n. Contra Costa Martinez 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
  UCR66430  Lactuca virosa J. T. Howell 1943-8-22 19310 Contra Costa San Francisco Bay Region/Coast Range, near head of San Leandro Creek Canyon 244 Comment
Read comments
Jul 7 2009
  CAS-BOT-BC340695  Lactuca virosa John Thomas Howell 1943-8-22 19310 Contra Costa Pinehurst Canyon, Oakland Hills Comment
  CAS-BOT-BC340696  Lactuca virosa John Thomas Howell 1943-8-22 19310 Contra Costa Near head of San Leandro Creek Canyon 243 Comment
  CAS-BOT-BC340700  Lactuca virosa John Thomas Howell 1943-8-22 19310 Contra Costa Near head of San Leandro Creek Canyon 243 Comment
  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
  CAS-BOT-BC341473  Lagophylla ramosissima James I. McMurphy 1909-5-21 s.n. Contra Costa Antioch 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
  UC579839  Lamium amplexicaule Annetta Carter 1937-4-4 1230 Contra Costa about 10 mi e Pinole; Vaca Canyon Comment
  CAS-BOT-BC337977  Lasthenia californica W. H. Brewer 1862-5-19 1120 Contra Costa North of Kirker's Pass Comment
  UC62978  Lasthenia californica subsp. californica H. M. Hall 1901-4-5 1767 a Contra Costa Mt. Diablo Region of San Francisco Bay (lower slopes) Comment
  UC1363767  Lasthenia ferrisiae Robert Ornduff 1958-4-15 4898 Contra Costa alkali flats next to road Byron Hot Springs Comment
  UC75371  Lasthenia fremontii C. F. Baker 1903-4-27 2867 Contra Costa Byron Comment
  RSA517746  Lasthenia fremontii Donald G. Nelson 1937-3-30 470 Contra Costa Railroad tracks paralleling the highway south of Byron on road to Tracy Comment
  UCD133741  Lasthenia fremontii Ira L. Wiggins 1930-4-17 4579 Contra Costa 1/4 mile south of Byron. Comment
  CAS-BOT-BC352929  Lasthenia glaberrima Albert Kellogg date not specified s.n. Contra Costa Antioch Comment
  CAS-BOT-BC352771  Lasthenia glabrata subsp. glabrata John Thomas Howell 1933-5-14 11240 Contra Costa St. Mary's College Comment
  JEPS89771  Lasthenia gracilis Dean William Taylor 991 Contra Costa along Byron Road (J4) at the junction of Holley Road; Byron Road 15 Comment
  UC135156  Lasthenia gracilis C. F. Baker 1903-4-25 2801 Contra Costa Antioch Comment
  SD241758  Lasthenia microglossa Mary Bowerman 1979-4-10 Contra Costa Mount Diablo. Mitchell Canyon opposite upper end of old reservoir. On steep bank above fire road. Comment
  CAS-BOT-BC366304  Lasthenia minor Alice Eastwood 1914-3-14 3830 Contra Costa Byron Springs Comment
  CAS-BOT-BC213350  Lathyrus jepsonii subsp. californicus Volney Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley Comment
  CAS-BOT-BC205015  Lathyrus jepsonii var. jepsonii Walter Knight; Lawrence R. Heckard; Bert Johnson 1978-9-28 3301 Contra Costa Browns Island. South Landing Comment
  CAS-BOT-BC205016  Lathyrus jepsonii var. jepsonii Walter Knight 1978-8-14 3124 Contra Costa Browns Island Comment
  CDA27149  Lathyrus vestitus D. G. Kelch 2007-4-29 7 .205 Contra Costa Carquinez Strait; Richmond; Chevy s Hill N. Hilltop Dr. Comment
  POM19744  Lathyrus vestitus subsp. vestitus C. F. Baker 1903-4-28 2944 Contra Costa Mitchells Canyon, Mt. Diablo. Comment
  JEPS55360  Lathyrus vestitus var. vestitus W. L. Jepson 1922-7-9 9733 Contra Costa El Cerrito, Richmond Comment
  JEPS91399  Lathyrus vestitus var. vestitus Dean W. Taylor 1993-5-2 13420 Contra Costa hillside above Selby Siding, ca. 1 mile W of Carquinez Bridge, near BM 378 106 Comment
  UC692238  Lathyrus vestitus var. vestitus Mary L. Bowerman 1931-4-19 741 Contra Costa above lower Deer Flat Mount Diablo, Deer Flat Comment
  UC692312  Lathyrus vestitus var. vestitus Mary L. Bowerman 1933-6-3 2239 Contra Costa Ransom Point ridge Mount Diablo Comment
  UC692407  Lathyrus vestitus var. vestitus Mary L. Bowerman 1930-6-5 257 Contra Costa 5.8 mi by road from North Gate (North Road); Mount Diablo 457 Comment
  UC69527  Lathyrus vestitus var. vestitus Jos. Burtt Davy 1897-4-17 Contra Costa Point Isabel West Berkeley Comment
  CDA15231  Lavatera cretica G. F. Hrusa, D. Crowe 1998-5-8 14360 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg. Comment
  UC1315007  Layia chrysanthemoides R. F. Hoover 1967-4-28 10506 Contra Costa Byron Hot Springs Comment
  UC89157  Layia chrysanthemoides T. S. Brandegee 1885-5-1 Contra Costa Antioch Comment
  CAS-BOT-BC323908  Layia chrysanthemoides Brandegee no date on sheet s.n. Contra Costa Antioch Comment
  POM181462  Layia chrysanthemoides I. L. Wiggins 1930-4-17 4572 Contra Costa 1/4 mi. S. of Byron. Comment
  UC761861  Layia gaillardioides R. F. Hoover 1936-4-16 973 Contra Costa e slope of Bald Peak Comment
  UC89222  Layia gaillardioides K. Brandegee Contra Costa Mt. Diablo Comment
  CAS-BOT-BC321747  Layia gaillardioides M. K. Curran 1884-1-1 s.n. Contra Costa Antioch Comment
  UC30636  Layia glandulosa E. L. Greene 1886-5-1 Contra Costa Antioch Comment
  UCD133904  Layia glandulosa Annetta M. Carter 1933-4-23 300 Contra Costa above the San Joaquin River, between Antioch Bridge and Antioch. Comment
  RSA102175  Layia heterotricha M. K. Curran 1886-05 s.n. Contra Costa Near Antioch. Comment
  UC691547  Layia hieracioides Mary L. Bowerman 1931-4-19 744 Contra Costa Tiny flat below Deer Flat Comment
  CAS-BOT-BC327247  Layia hieracioides David D. Keck 1941-6-5 5307 Contra Costa Berkeley Hills, Fish Creek Rd., 0.25 mi W of E. portal of Broadway Tunnel 335 Comment
  UC30669  Layia platyglossa Harley P. Chandler 1901-4-5 992 Contra Costa Mt. Diablo Comment
  UC697152  Layia platyglossa Mary L. Bowerman 1935-4-26 2918 Contra Costa summit Mount Diablo Comment
  UC89330  Layia platyglossa Brandegee Apr 1889 Contra Costa Antioch Comment
  CAS-BOT-BC370668  Layia platyglossa Mary L. Bowerman 1931-4-19 737 Contra Costa Mount Diablo. Ridge south of Deer Flat. 838 Comment
  CAS-BOT-BC377905  Layia platyglossa Paul F. Covel 1938-5-8 s.n. Contra Costa Mt. Diablo Comment
  POM53355  Layia platyglossa subsp. platyglossa C. F. Baker 1903-5-28 2874 Contra Costa Antioch. Comment
  UC1100312  Leersia oryzoides Malcolm A. Nobs 1948-9-23 681 Contra Costa 7 mi s of Kingston (Rock Slough); Rock Slough Comment
  UC2032848  Lemna Doran, Andrew Scott 2012-3-20 719 Contra Costa Southern part of Brooks Island, west side of quarry in pool. Comment
  CDA9564  Lemna gibba D. G. Kelch 2007-6-17 7 .463 Contra Costa Carquinez Strait; Fernandez Ranch, Muir Land Trust. Franklin Canyon. 0 Comment
  UC2029080  Lemna minor Barbara Ertter 2000-7-16 17400 Contra Costa Lower Pine Creek in Diablo Foothills Regional Park. Comment
  JEPS75302  Lemna minuscula L. R. Heckard 1975-11-2 4211 Contra Costa nw side Brooks Island (Richmond); , Brooks Island Comment
  JEPS63250  Lepechinia calycina W. L. Jepson 1920-8-12 9077 Contra Costa Mount Diablo, towards summit Mount Diablo Comment
  RSA409611  Lepechinia calycina Robert Gustafson 1985-6-15 3184 Contra Costa 1/2 mile below the summit of Mt. Diablo. Comment
  SEINET4081593  Lepechinia calycina B. C. Templeton 1962-1 sn Contra Costa Mount Diablo. Comment
  CAS-BOT-BC89844  Lepidium Bauer 1857-5-1 s.n. Contra Costa Mond Diabola. Comment
  CAS-BOT-BC88702  Lepidium acutidens Alice Eastwood 1914-3-14 3771 Contra Costa Byron Springs. Comment
  CDA43401  Lepidium acutidens Michael Pitcairn & Dean Kelch 2015-3-6 s.n. Contra Costa South end of the Byron Airport. Comment
  OBI15025  Lepidium acutidens Robert F. Hoover 1967-4-28 10507 Contra Costa Byron Hot Springs Comment
  CAS-BOT-BC88703  Lepidium acutidens John Thomas Howell 1933-3-29 10894 Contra Costa Nortonville. 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
  RSA537493  Lepidium dictyotum Barbara Ertter, Jim Jokerst 1989-4-5 8142 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton; near sea level 0 Comment
  CHSC67912  Lepidium dictyotum var. acutidens James D. Jokerst 1989-3-29 3074 Contra Costa Byron Hot Springs area NE of Livermore, adjacent to pipeline on terrace S of ephemeral creek. 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
  UC2029108  Lepidium didymum Barbara Ertter 1990-5-15 8991 Contra Costa South El Cerrito, north foot of Albany Hill at end of Yosemite Avenue cul-de-sac. Comment
  RSA0029768  Lepidium didymum Barbara Ertter 1990-5-15 8991 Contra Costa South El Cerrito, north foot of Albany Hill at end of Yosemite Avenue cul-de-sac. Comment
  UC1607701  Lepidium latifolium Barbara Ertter 1991-5-12 9810 Contra Costa sw corner El Cerrito (Point Isabel Regional Shoreline, n of park); San Francisco Bay, Point Isabel Regional Shoreline Comment
  POM172656  Lepidium latipes Chesnut, E. R. Drew 1889-4-16 s.n. Contra Costa Concord. Comment
  RSA66775  Lepidium latipes J. T. Howell 1933-3-29 10907 Contra Costa Nortonville Comment
  SEINET11983327  Lepidium latipes F. Chisaki, Bacigalupi, R. C.; Robbins, G. T. 1959-1 1320 Contra Costa on Deer Valley Rd, 0.2 mi S of junction with Briones Valley Rd (ca 8 mi S of Antioch) Comment
  UC2070568  Lepidium latipes Barbara Ertter with David Gowen, J. Ginochio, M. Park, S. Matson, A. Moore, S. D'Alcamo, J. Greenhouse, K. Kersh and J. Gawthrup 2005-5-8 18572 Contra Costa Long Ridge on west flank of Mount Diablo, near springs and pond on Ginochio property near park boundary. Comment
  CAS-BOT-BC89896  Lepidium nitidum Lewis S. Rose 1933-3-29 33045 Contra Costa Pittsburg. Comment
  SBBG2518  Lepidium nitidum J. M. Tucker 1946-3-24 1380 Contra Costa hills between Nortonville and Somersville Comment
  UC1301016  Lepidium nitidum Helen K. Sharsmith 1963-3-3 5192 Contra Costa near Moraga (e of St. Mary's College); San Francisco Bay Region, Las Trampas Canyon 259 Comment
  UC517997  Lepidium nitidum Lewis S. Rose 1933-3-29 33045 Contra Costa Pittsburg Comment
  POM204087  Lepidium nitidum L. S. Rose 1933-3-29 33045 Contra Costa Pittsburg Comment
  RSA8344  Lepidium nitidum L. S. Rose 1933-3-29 33045 Contra Costa Pittsburg Comment
  JEPS111862  Lepidium nitidum var. nitidum D. G. Kelch 2004-3-12 04 .28 Contra Costa Pinole Valley Hillside and canyon above Wright Road. Off of Pinole Valley Road. 220 Comment
  UC1585875  Lepidium nitidum var. oreganum Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8127 Contra Costa ca 15 air mi sw Stockton (w and adjacent to Clifton Court Forebay) Comment
  SEINET12006190  Lepidium oblongum H. M. Hall 1901-1 1741 Contra Costa Mt. Diablo, region of San Francisco Bay Comment
  CDA23067  Lepidium strictum D. G. Kelch, D. A. Weinstein 2008-5-5 8 .092 Contra Costa Carquinez Strait; Richmond. W Chevy s Hill. N parking lot of Hilltop Mall. Comment
  UC1789934  Lepidium strictum Katharine Brandegee May 1907 Contra Costa Antioch Comment
  UCR152069  Leptochloa uninervia Beecher Crampton 1959-10-19 5467 Contra Costa 4 mi south of Brentwood, along Vasco Road, just N of its junction with Mount Diablo Road 40 Comment
  CAS-BOT-BC226592  Leptosiphon ambiguus Mary L. Bowerman 1934-3-18 2481 Contra Costa Mount Diablo. West of Russelman Park on edge of Donner Canyon Comment
  POM300972  Leptosiphon androsaceus Mary L. Bowerman 1933-4-15 1861 Contra Costa Second ridge southeast of Arroyo del Cerro Comment
  UC2027821  Leptosiphon androsaceus Barbara Ertter with Stu Garrett 1997-3-29 15529 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  UCD32383  Leptosiphon ciliatus Beecher Crampton 1950-4-22 527 Contra Costa Contra Costa County, above Judsonville, south of the old Empire Mine around top and slopes of hills. 182 Comment
  UC87925  Lessingia glandulifera K. Brandegee 1883-1 Contra Costa Antioch Comment
  UC1094039  Lessingia pectinata var. tenuipes Lewis S. Rose 1955-10-17 55185 Contra Costa Antioch Comment
  UC1287410  Lessingia pectinata var. tenuipes Willard Spence 1962-5-15 672 Contra Costa 0.2 mi e of entrance to Antioch Boat Ramp Comment
  UC2029023  Leucanthemum vulgare Barbara Ertter 1999-7-17 16761 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, Rifle Range Road. Comment
  JEPS43213  Lewisia rediviva W. L. Jepson 1907-4-26 2640 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC444385  Lewisia rediviva Paul F. Covel 1940-5-12 s.n. Contra Costa Summit, Mt. Diablo Comment
  CDA39788  Leymus X multiflorus Guise 2014-2-27 PDR# 070 P06223831 Contra Costa El Sobrante, San Pablo Dam Road, East Bay Regional Parks. 0 Comment
  CDA39657  Leymus X multiflorus Slate 2013-5-22 PDR# 1641699 Contra Costa Concord; Walnut Creek channel upstream of Willow Pass Rd. 0 Comment
  RSA63664  Leymus condensatus Milo S. Baker 1950-5-22 12226 Contra Costa Roadside between Martinez and Pt. Costa Comment
  CAS-BOT-BC283734  Leymus condensatus W. A. Silveus 1938-7-5 3215 Contra Costa El Cerrito Comment
  UCD65585  Leymus triticoides R. Tofsrud 1947-6-12 176 Contra Costa W of Byron about 4 miles in the 'Arroyo de la Canada. Comment
  UCD87580  Leymus triticoides R. Tofsrud 1947-6-12 176 Contra Costa W of Byron about 4 miles in the 'Arroyo de la Canada. Comment
  CAS-BOT-BC272217  Leymus triticoides Walter Knight 1965-9-7 1174 Contra Costa Along San Joaquin River bank, Antioch dunes Comment
  JEPS128148  Ligustrum ovalifolium Eric Wrubel 2010-10-1 NPS 2 Contra Costa Joh Muir National Historic Site, Martinez. Mount Wand trailhead. Comment
  JEPS65188  Lilaea scilloides L. R. Heckard 1971-4-15 2479 Contra Costa s of Byron (at intersection of Holey Road) 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
  CDA9513  Lilaeopsis masonii D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .24 Contra Costa CA Delta; Along Clifton Court Near Clifton Court Forebay. Comment
  UC1818927  Lilaeopsis masonii Barbara Ertter, Lincoln Constance 1995-6-16 14261 Contra Costa East edge Dow Marsh on west side Antioch Marina, south side San Joaquin River in Delta area, mud on riprap. Comment
  UC1178018  Lilium pardalinum Herbert L. Mason 1955-7-14 14633 Contra Costa 0.5 mi e Antioch Bridge Comment
  SD211624  Limnanthes douglasii var. rosea Barbara Ertter, Jim Jokerst et al 1989-4-5 8115 Contra Costa Alkalai sink West and adjacent to Clifton Court Forebay, circa 15 airmiles Southwest of Stockton Comment
  CDA39056  Limonium sinuatum D. G. Kelch 2011-6-12 11 .585-B Contra Costa Carquinez Strait; Above Point Costa. 0 Comment
  UC23376  Linanthus androsaceus Brewer 1862-5-22 1139 Contra Costa ne of Mt. Diablo (hills s of Coal Mines) 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
  SEINET8729347 Image available Linanthus liniflorus Herbert L. Mason 1952-1 14265 Contra Costa 3.5 miles south of Eyron Comment
  UC125233  Linanthus pygmaeus subsp. continentalis T. S. Brandegee Apr 1889 Contra Costa Antioch Comment
  SJSU5759  Lithophragma affine M. C. Maloney 1971-4-20 Contra Costa Morgan Territory Rd, 6 mi from Marsh Cr Rd Comment
  UC1084400  Lithophragma affine G. Thomas Robbins 1937-4-17 128 Contra Costa near Point Richmond Comment
  SEINET5557311  Lithophragma affine H. S. Gentry 1931-1 47 Contra Costa Collected near Buckle Point Mt. Diablo. Comment
  RSA0027641  Lithophragma bolanderi Barbara Ertter 1998-5-3 16038 Contra Costa SW fork of Pine Creek between Pine Ridge and Wall Point Ridge, southwest base of Mount Diablo. 244 Comment
  UC692447  Lithophragma heterophyllum Mary L. Bowerman 1931-3-21 585 Contra Costa Sycamore Canyon 335 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
  POM142563  Lithophragma heterophyllum C. F. Baker 1903-4-28 2811 Contra Costa Mitchell s Canyon, Mt. Diablo. Comment
  UC2029036  Lithophragma heterophyllum Barbara Ertter 2000-3-30 16906 Contra Costa North side of Mount Diablo, Mitchell Canyon Road west of base of switchbacks. Comment
  UC1050466  Lobelia laxiflora N. Floy Bracelin 1941-5-4 1262 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1051271  Lobelia tupa N. Floy Bracelin 1941-6-29 1262 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California 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
  UC1948941  Logfia gallica William J. Ferlatte, L. Maynard Moe 1970-4-27 1255 Contra Costa San Francisco Bay: Red Rock Island Comment
  CDA2238  Lolium multiflorum D. G. Kelch, A. G. Murdock 2004-4-11 4 .069 Contra Costa Carquinez Strait; Bull Valley Prairie. EBRPD. Between Crockett and Pt. Costa. Comment
  RSA641386  Lolium perenne subsp. multiflorum Terry J. O'Brien 1999-07 s.n. Contra Costa San Francisco Bay Area. eastern Richmond along boundary with EL Cerrito. Mira Vista Park adjacent Mira Vista School 91 Comment
  RSA762301  Lolium perenne subsp. multiflorum William J. Ferlatte, L. M. Moe 1970-4-27 1221 Contra Costa San Francisco Bay, Red Rock Island. Comment
  UC691261  Lolium temulentum Mary L. Bowerman 1932-4-27 1367 Contra Costa Oyster Ridge, s face Mount Diablo (w-facing slope of ridge w of Riggs Canyon); , Oyster Ridge, s face Comment
  JEPS111613  Lomatium dasycarpum D. G. Kelch 2004-4-25 04 .126 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Scenic Dr. 30 Comment
  UCD127622  Lomatium dasycarpum P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  JEPS17148  Lomatium dasycarpum subsp. dasycarpum W. L. Jepson 1923-6-10 10000 Contra Costa Upper Marsh Creek Mt. Diablo Comment
  JEPS17102  Lomatium macrocarpum W. L. Jepson 1909-6-25 3120 Contra Costa Mt. Diablo, Mitchell Rock Comment
  POM301010  Lomatium macrocarpum Mary L. Bowerman 1931-4-25 762 Contra Costa Mt. Diablo, near junction of south and west roads Comment
  JEPS100134  Lomatium utriculatum G. Smick 2003-3-25 GAS 116 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CDA42380  Lonicera hispidula D. G. Kelch 2012-5-27 12 .071 Contra Costa Carquinez Strait Region; Pinole Valley Park. Comment
  JEPS111772  Lonicera hispidula var. vacillans D. G. Kelch 2004-5-2 04 .167 Contra Costa Crockett - Edwards Canyon 125 Comment
  JEPS12841  Lonicera hispidula var. vacillans W. L. Jepson May 23 1891-May 24 1891 Contra Costa Mt. Diablo Comment
  UCSB24470  Lonicera interrupta McMinn, Howard 1922-6-2 Contra Costa NE slope of Mt. Diablo Comment
  UCSB24472  Lonicera involucrata McMinn, Howard; Maino, E. 1931-3-9 Contra Costa Leona Canyon Comment
  UC1005949  Lonicera nitida N. Floy Bracelin 1943-3-15 2434 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
  CDA15230  Lotus corniculatus G. F. Hrusa, D. Crowe 1998-5-8 14359 Contra Costa Sacramento Delta; Adjacent to Dow Chemical plant at Pittsburg. Comment
  JEPS91400  Lotus corniculatus Dean W. Taylor 1990-4-23 10636 Contra Costa ca. 2 miles due W of Byron Hot Springs 30 Comment
  SBBG122846  Lotus corniculatus B. Ertter, K. Ertter 1995-7-11 14473 Contra Costa Sulfur Spring on Pine Crk, Diablo Foothills Regional Park SW of Walnut Crk 121 Comment
  UC1795754  Lotus corniculatus Barbara Ertter, Kristin Ertter 1995-7-11 14473 Contra Costa Sulfur Spring on Pine Cr, Diablo Foothills Regional Park SW of Walnut Creek, marshy wet ground. 121 Comment
  SD241813  Lotus corniculatus Barbara Ertter, Kristin Ertter 1995-7-11 14473 Contra Costa Sulfur Spring on Pine Cr, Diablo Foothills Regional Park SW of Walnut Creek 121 Comment
  POM161235  Lotus crassifolius Rimo Bacigalupi 1926-4-30 1350 Contra Costa Summit of Mt Diablo. Comment
Read comments
Nov 9 2011
  UC15621  Lotus humistratus W. H. Brewer 1862-5-12 1073 Contra Costa Monte Diablo Comment
  UC692530  Lotus humistratus Mary L. Bowerman 1933-5-2 1940 Contra Costa below Pioneer Camp; Mount Diablo 762 Comment
  UC692531  Lotus humistratus Mary L. Bowerman 1931-5-7 802 Contra Costa North Peak Ridge Mount Diablo Comment
  JEPS19443  Lotus micranthus W. L. Jepson 1891-6-9 13788 Contra Costa Fish Ranch Berkeley Hills Comment
  UC2028272  Lotus micranthus Barbara Ertter 1999-6-12 16705 Contra Costa Black Hawk Ridge Road between Knobcone Point Road and NE fork of Sycamore Creek, South side of Mount Diablo. Comment
  UC1129013  Lotus purshianus var. purshianus C. M. Belshaw 1936-5-13 2123 Contra Costa n of Horse Valley; Mt. Diablo Quad. 121 Comment
  UC692269  Lotus purshianus var. purshianus Mary L. Bowerman 1938-6-14 3676 Contra Costa 1 mi from North Gate (North Road); Mount Diablo 121 Comment
  JEPS55900  Lotus scoparius A. M. Ottley 1920-6-5 773 Contra Costa Moraga Ridge Comment
  UC1129128  Lotus scoparius R. W. Lundh 1932-8-27 150 Contra Costa 1.5 mi w Cave Point; Mt. Diablo Quad. 487 Comment
  JEPS100070  Lotus wrangelianus G. Smick 2003-3-13 GAS 87 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC692323  Lotus wrangelianus Mary L. Bowerman 1932-4-9 1320 Contra Costa on large spur which heads into Sycamore Canyon; Mount Diablo, Inner Black Hills Comment
  UC1223414  Lotus wrangelianus Joseph P. Tracy 1933-5-31 12435 Contra Costa back of El Cerrito 152 Comment
  CAS-BOT-BC478118  Ludwigia Walter Knight 1978-10-11 3325 Contra Costa Browns Island, Point Emmet Comment
  JEPS111572  Ludwigia peploides D. G. Kelch 2004-7-9 04 .299 Contra Costa Port Costa - Reservoir. Port Costa pond 28 Comment
  UC15783  Lupinus albifrons unknown 1038 Contra Costa Walnut Creek Comment
  CAS-BOT-BC201369  Lupinus albifrons var. albifrons H. E. McMinn 1922-6-2 81 Contra Costa N. slope of Mt. Diablo Comment
  RSA29244  Lupinus albifrons var. albifrons Joseph A. Ewan 1934-3-10 8645 Contra Costa 2 mi. below Orinda Road bridge, Wildcat Canyon. 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
  UC2043258  Lupinus albifrons var. collinus Barbara Ertter with Dianne Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14674 Contra Costa Point Molate Navel Fuel Depot north of San Rafael bridge, edge of San Francisco Bay. Comment
  RSA760662  Lupinus arboreus William J. Ferlatte, L. Maynard Moe 1970-4-27 1262 Contra Costa San Francisco Bay, Red Rock Island. Comment
  JEPS100072  Lupinus bicolor G. Smick 2003-3-25 GAS 71 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site 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
  UC692567  Lupinus bicolor Mary L. Bowerman 1931-4-4 671 Contra Costa West Road just w Turtle Rock, Mount Diablo (= North Road, Mount Diablo); Mount Diablo, just w of Turtle Rock Comment
  UCD107012  Lupinus chamissonis Beecher Crampton 1973-3-26 8907 Contra Costa 2 miles S.E. of Oakley. Comment
  JEPS103668  Lupinus concinnus David Gowen 2003-5-15 Contra Costa Black Diamond Mines Regional Preserve, Chaparral Loop Trail 304 Comment
  JEPS112326  Lupinus formosus var. formosus Dean G. Kelch and Andrew G. Murdock 2004-9-2 04 .329B Contra Costa McEwen Road; County: Contra Costa; McEwen Road from Port of Costa - I-4 near summit of Road. Contra Costa County CA. Comment
  UC15915  Lupinus luteolus Mrs. T. J. Maynard 1897-7-28 Contra Costa Walnut Creek Comment
  JEPS112346  Lupinus microcarpus Dean G. Kelch and Andrew G. Murdock 2004-4-25 04 .110 Contra Costa Martinez - West: Ozol Rock and Scenic Drive; County: contra Costa; West Martinez on Carquinez Dr. Comment
  OBI60545  Lupinus microcarpus var. densiflorus Donald G. Nelson 1937-4-24 516 Contra Costa On Marsh Crk Rd, in rolling hill country N of Byron 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
  UC1300900  Lupinus microcarpus var. microcarpus Helen K. Sharsmith 1963-4-7 5287 Contra Costa e side of Kirker Pass road w Antioch; San Francisco Bay Region, w of Antioch 152 Comment
  UC1562540  Lupinus microcarpus var. microcarpus Barbara Ertter with Elizabeth Neese 1988-4-24 7453 Contra Costa between and parallel to Nortonville and Somersville roads Black Diamond Mines Regional Preserve sw Antioch; Black Diamond Mines Regional Preserve Comment
  UC15961  Lupinus microcarpus var. microcarpus J. Burtt Davy April 1895 Contra Costa Antioch Comment
  UC201024  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
  UC201026  Lupinus microcarpus var. microcarpus Katharine Brandegee 1918-6-16 Contra Costa Richmond Annex Comment
  RSA0027718  Lupinus nanus Barbara Ertter, R. K. Brummitt 1998-5-13 16132 Contra Costa Summit Road on Mount Diablo, base of rock outcrop/roadcut above Juniper Camp. Comment
  UC2028033  Lupinus nanus Barbara Ertter 1998-4-4 15944 a Contra Costa Shell Ridge Open Space northwest of Mount Diablo, SE of Indian Valley School. Comment
  UCD109246  Lupinus nanus L. S. Smith 1916-5-10 s.n. Contra Costa Grand View Terrace - m. Richmond. Comment
  RSA120097  Lupinus nanus subsp. nanus L. D. Christenson 1935-4-11 78 Contra Costa East of Mt. Diablo. Comment
  JEPS107018  Lupinus pachylobus J. Greenhouse with Kevin Hintsa 2004-4-5 5089 Contra Costa Mt. Diablo, Fire Interpretive Trail 1112 Comment
  CDA33853  Lupinus pachylobus D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .105 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  CHSC75089  Lupinus polycarpus Roger Thomas 1987-4-21 5 Contra Costa 3300 block of Johnson Rd. Lafayette. 152 Comment
  RSA121635  Lupinus subvexus var. subvexus C. M. Belshaw 1936-5-11 2098 Contra Costa 5 1/3 miles east of Danville. 290 Comment
  UC2062431  Luzula macrantha Barbara Ertter with David Gowen 2013-4-9 21309 Contra Costa Mount Diablo State Park southeast of Walnut Creek, Sulfur Spring/Devils Slide Trail southeast of Curry Point. Comment
  SD175830  Lycopus americanus D. G. Kelch 2002-7-15 02 4 Contra Costa Old San Joaquin River channel, east of Brentwood. In low areas of the channel. 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
  POM300654  Lythrum californicum Mary L. Bowerman 1932-12-5 1681 Contra Costa Willow Spring (near W road, N of Blvd Spring. Comment
  UC692629  Lythrum hyssopifolia Mary L. Bowerman 1932-8-27 1522 Contra Costa s of Turtle Rock (w of the willows, Mount Diablo); Mount Diablo Comment
  UCR263783  Lythrum tribracteatum Barbara Ertter, Brad Olson 1991-9-28 10834 Contra Costa San Pablo Reservoir between Orinda and El Sobrante 91 Comment
  UC2028242  Lythrum tribracteatum Barbara Ertter, Tony Morosco 1998-9-18 16422 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, western quarry area. Comment
  JEPS100179  Madia elegans A. Langston 2003-7-9 AL 62 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC691550  Madia elegans Mary L. Bowerman 1933-6-3 2240 Contra Costa Ransom Point ridge Mount Diablo Comment
  POM301049  Madia elegans subsp. elegans Mary L. Bowerman 1936-9-10 3542 Contra Costa Mount Diablo: Donner Canyon 335 Comment
  CAS-BOT-BC344326  Madia exigua Mary L. Bowerman 1931-5-19 867 Contra Costa Mount Diablo. Donner Canyon trail 274 Comment
  UC697171  Madia exigua Mary L. Bowerman 1931-5-19 867 Contra Costa Donner Canyon trail Mount Diablo 274 Comment
  UC1819036  Madia exigua Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14246 Contra Costa South side Mount Diablo, Sloan Road between Curry Point and Curry Canyon, roadside in partial shade of oak forest on north-facing slope. 487 Comment
  CAS-BOT-BC342981  Madia gracilis Barrett Anderson 1987-4-30 3499 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD 125 Comment
  UC1613945  Madia gracilis Charles M. Belshaw 1935-6-24 1025 Contra Costa Sobrante Hills Comment
  POM301014  Madia gracilis subsp. gracilis Mary L. Bowerman 1933-5-8 2018 Contra Costa Fossil Ridge near crest, north side by side road. Comment
  SD8607  Madia radiata Brandegee Apr 1889 Contra Costa Antioch Comment
Read comments
Jan 9 2007
  CAS-BOT-BC343586  Madia sativa L. R. Abrams 1916-7-1 5734 Contra Costa Martinez Comment
  CDA29210  Madia sativa D. G. Kelch 2008-6-15 8 .247 Contra Costa Carquinez Strait; Crockett hills, S of Cummings Skyway, W of Crockett Blvd. Comment
  CAS-BOT-BC343585  Madia sativa R. E. Frenkel 1963-8-18 265 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  CAS-BOT-BC8183  Malacothamnus fasciculatus subsp. fasciculatus Harvey Monroe Hall; F. M. Essig 1916-5-30 10131 Contra Costa Mt. Diablo on the westerly side north of Pine Canyon 290 Comment
  CAS-BOT-BC206327  Malacothamnus fremontii Elizabeth McClintock 1967-10-22 184 Contra Costa Nortonville Comment
  UC1042342  Malacothamnus fremontii Lewis S. Rose 1954-6-29 54081 Contra Costa Nortonville Comment
  UC185544  Malacothamnus fremontii Katharine Brandegee May 1883 Contra Costa Base of Mt. Diablo Comment
  UC692612  Malacothamnus fremontii Mary L. Bowerman 1930-6-18 353 Contra Costa Mount Diablo 822 Comment
  CAS-BOT-BC345370  Malacothrix clevelandii Brandegee No date on label s.n. Contra Costa Antioch Comment
  UC133354  Malacothrix floccifera C. F. Baker 1903-4-28 2948 Contra Costa Marsh Creek Mount Diablo Comment
  UC133355  Malacothrix floccifera Alice Eastwood 1897-5-31 Contra Costa Mount Diablo Comment
  UC2027747  Malus pumila Barbara Ertter 1996-11-24 15427 Contra Costa West side of Mount Diablo, Stage Road below Pine Pond in Pine Canyon. Comment
  CDA37265  Malva neglecta D. G. Kelch 2011-3-31 11 .069 Contra Costa Carquinez Strait Region; Richmond, near Point Pinole Regional Park. Comment
  UC2032804 Image available Malva pseudolavatera Doran, Andrew Scott 2012-3-20 674 Contra Costa Brooks island loading dock, North side of island. Comment
  HSC7016  Marah fabacea Greg Bos 1963-3-9 29 Contra Costa Pinole Valley Rd., SE of Pinole 61 Comment
  JEPS81140  Marah fabacea Edward Lee with Annetta Carter 1936-2-9 1747 Contra Costa 5.6 mi from Perkins Canyon road (Marsh Creek Road) Comment
  CHSC28455  Marah oregana Robert A. Schlising 1964-6-6 2718 Contra Costa Berkeley-Oakland Hills. Comment
  CAS-BOT-BC348047  Matricaria discoidea R. E. Frenkel 1964-4-8 420 Contra Costa By the south side of Marsh Creek Road near Marsh Creek 33 Comment
  JEPS100115  Medicago arabica G. Smick 2003-5-8 GAS 180 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC691173  Melica californica Mary L. Bowerman 1933-6-3 2236 Contra Costa Ransom Point trail Mount Diablo (Mount Diablo) Comment
  UC692468  Melica californica Mary L. Bowerman 1933-5-8 2029 Contra Costa n of Rock City (Mount Diablo); Mount Diablo Comment
  CDA32513  Melica imperfecta A. A. Beetle 1941-3-28 Contra Costa Near Orinda 0 Comment
  SEINET10926310  Melica imperfecta var. flexuosa Virginia E. Long 1933-6-14 Long 221 a Contra Costa Mt. Diablo. On slope S.E.-E. along first west fork from Curry Creek trail. 335 Comment
  CAS-BOT-BC262507  Melica torreyana Mary L. Bowerman 1933-5-9 2050 Contra Costa Mount Diablo. Mountain House Canyon 670 Comment
  CHSC116633  Melilotus indicus Lowell Ahart; Josephine Guardino 2016-4-19 20801 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
  UC1084410  Melilotus indicus G. Thomas Robbins 1937-4-17 123 Contra Costa slopes near Point Richmond Comment
  UC651294  Melilotus indicus Ira L. Wiggins 1930-4-18 4599 Contra Costa Jersey Island Comment
  CDA1109  Melissa officinalis D. G. Kelch 2005-7-14 5 .462 Contra Costa Carquinez Strait Region; Arroyo del Hambre; Franklin Creek near Glen Frazier. Comment
  UCD150883  Mentha X piperita James A. Neilson Jr. 1972-11-9 s.n. Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 1 Comment
  UC1607618  Mentha canadensis Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, and Amy Hiss 1991-8-18 10697 Contra Costa n Pittsburg (near confluence of Sacramento and San Joaquin Rivers, opposite Pittsburg Marina, at edge of lagoon in center of w end of island); Browns Island, nr confluence Sacramento and San Joaquin Rive Comment
  UC1619954  Mentha spicata Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10718 Contra Costa Browns Isl. n Pittsburg (near confluence of Sacramento & San Joaquin rivers, w.-most point opposite Pittsburg marina); Browns Isl. Comment
  POM300997  Mentha spicata Mary L. Bowerman 1938-11-19 3733 Contra Costa Mitchell Canyon (at one of places where stream crosses road) 229 Comment
  UC1818941  Mentzelia dispersa Barbara Ertter, Mary Bowerman 1994-6-19 12849 a Contra Costa Mt. Diablo State Park east of Walnut Creek; lower Summit Parking Lot, roadside. Comment
  POM300650  Mentzelia micrantha Mary L. Bowerman 1933-5-2 1952 Contra Costa Below Pioneer Camp and slightly east: Chaparral-burn, south face. 762 Comment
  JEPS111949  Mercurialis ambigua D. G. Kelch 2004-4-3 04 .44 Contra Costa Crockett - Edwards Canyon Rare weed at nursery at Edwards Creek Staging Area (EBRPD) near barn. 24 Comment
Read comments
Jun 14 2011
  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
  SEINET200754  Microcala quadrangularis J. P Tracy 1900-3-24 608 Contra Costa Near Stege 3 Comment
  CDA31454  Micropus californicus D. G. Kelch 2006-5-2 6 .21 Contra Costa Carquinez Strait; Fernandez Ranch; W. Christie Rd. Comment
  CAS-BOT-BC348648  Micropus californicus var. subvestitus Brandegee No date on label s.n. Contra Costa Antioch Comment
  UCD77859  Microseris douglasii Robert E. Preston 1997-3-8 1018 Contra Costa Black Diamond Mines Regional Park, along Stewartsville Trail. 91 Comment
  CAS-BOT-BC348884  Microseris douglasii subsp. douglasii A. A. Heller 1908-4-17 8901 Contra Costa Hills three miles south of Antioch 18 Comment
  JEPS25387  Microseris douglasii subsp. douglasii Rimo Bacigalupi with G. T. Robbins and Francia Chisaki 1959-4-14 7000 Contra Costa along Lone Tree Way 2 1/2 mi se Antioch (just e of Antioch Airport) 56 Comment
  JEPS36210  Microseris douglasii subsp. douglasii W. L. Jepson 1923-4-22 9880 Contra Costa Mount Diablo Comment
  JEPS36212  Microseris douglasii subsp. douglasii W. L. Jepson 1923-4-22 9882 Contra Costa Mt. Diablo Comment
  JEPS81843  Microseris douglasii subsp. douglasii Rimo Bacigalupi with G. T. Robbins and Francia Chisaki 1959-4-14 7000 Contra Costa along Lone Tree Way just e Antioch Airport (2 1/2 mi se of Antioch) 56 Comment
  UC1070040  Microseris douglasii subsp. douglasii C. M. Belshaw 1936-5-11 2094 Contra Costa 2 mi ene Danville; Mt. Diablo Quad. 243 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
  UC691464  Microseris douglasii subsp. douglasii Mary L. Bowerman 1933-5-4 1991 Contra Costa Fossil Ridge crest Mount Diablo Comment
  UC691465  Microseris douglasii subsp. douglasii Mary L. Bowerman 1931-4-18 729 Contra Costa in basin of ne fork Sycamore Canyon; Mount Diablo Comment
  CAS-BOT-BC348894  Microseris douglasii subsp. douglasii K. L. Chambers 1953-4-25 449 Contra Costa Balfour Road, ca. 4 mi. w. of Brentwood and 1.8 mi. e. of its junction with Antioch-Briones Valley Road. (Deer Valley Road.) On e. side of Mount Diablo Range Comment
  UC70182  Microseris douglasii subsp. tenella J. Burtt Davy May 1898 Contra Costa Danville Mount Diablo Region Comment
  POM181472  Microseris douglasii subsp. tenella I. L. Wiggins 1930-4-17 4560 -a Contra Costa One mile east of Mountain House, on road to Byron. Comment
  CAS-BOT-BC349169  Microseris elegans Brandegee No date on label s.n. Contra Costa Byron Springs Comment
  CAS-BOT-BC7493  Microseris parvula M. K. Curran s.n. Contra Costa Antioch Comment
  UC2070514  Microseris sylvatica Barbara Ertter with David Gowen and Michael Park 2004-4-13 18357 Contra Costa Black Diamond Mines Regional Park south of Pittsburg, upper part of N-facing slope below Black Diamond Trail, opposite Rose Hill cemetery. Comment
  JEPS53926  Mimulus arvensis Olive Dyer 1937-5-18 324 Contra Costa C.C.C. Camp (back of) Wildcat Canyon, near Berkeley Comment
  UC1051312  Mimulus aurantiacus N. Floy Bracelin 1941-6-22 1415 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  RSA15451  Mimulus aurantiacus var. aurantiacus J. T. Howell 1936-4-19 s.n. Contra Costa Nortonville Comment
  UC691496  Mimulus aurantiacus var. aurantiacus Mary L. Bowerman 1930-6-5 253 Contra Costa 5.8 mi from entrance West road (=North Road); Mount Diablo 457 Comment
  UC691621  Mimulus cardinalis Mary L. Bowerman 1932-11-19 1663 Contra Costa e Pioneer Camp (beneath fire trail); Mount Diablo, Mountain Springs Canyon Comment
  UC691504  Mimulus grandis Mary L. Bowerman 1933-5-2 1964 Contra Costa below and w Pioneer Camp; Mount Diablo Comment
  UC2027721  Mimulus guttatus Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15513 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  POM261437  Mimulus guttatus J. T. Howell 1940-4-21 15402 Contra Costa Pine Canyon, Mount Diablo Comment
  SEINET4678015  Mimulus guttatus K. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4954 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough, SE portion of Bethel Slough.; 0 610 Comment
  UC103731  Mimulus latidens T. S. Brandegee May 1889 Contra Costa Antioch Comment
  UC27004  Mimulus nasutus J. Burtt Davy 1893-5-13 214 Contra Costa Claremont Canyon to Fish Ranch fide fieldbook Comment
  UC691620  Mimulus rattanii Mary L. Bowerman 1935-6-1 3111 Contra Costa largest ridge between Ransom Point ridge and Mitchell-Pine divide; Mount Diablo 1082 Comment
  UC1818903  Mimulus rattanii Barbara Ertter, Mary Bowerman 1994-6-19 12845 a Contra Costa Mt. Diablo State Park east of Walnut Creek; lower Summit Parking Lot, opening on North side, ca. 3700'. Comment
  CHSC22998  Minuartia douglasii Robert A. Schlising 1962-4-26 2187 Contra Costa Coast Ranges. Mount Diablo, at Juniper Campground. Comment
  UC8130  Minuartia douglasii W. H. Brewer 1862-5-5 1048 Contra Costa near Walnut Creek (sw of Camp 69) Comment
  CAS-BOT-BC384001  Mirabilis jalapa D. E. Breedlove 1969-10-18 16711 Contra Costa On Reliez Valley Road at the junction with Gloria Terrace; Lafayette Comment
  UC691408  Monardella douglasii Mary L. Bowerman 1935-6-1 3116 Contra Costa Diablo Trail Mount Diablo, Meridian Peak 1082 Comment
  UC691415  Monardella villosa subsp. villosa Mary L. Bowerman 1930-6-18 339 Contra Costa Dan Cook canyon Mount Diablo Comment
  UC691416  Monardella villosa subsp. villosa Mary L. Bowerman 1938-6-21 3689 Contra Costa summit Mount Diablo Comment
  UC2027734  Monardella villosa subsp. villosa Barbara Ertter 1997-2-16 15459 Contra Costa Shell Ridge Open Space on west flank of Mount Diablo, exposed sandstone on main ridgeline. Comment
  CAS-BOT-BC327805  Monolopia gracilens Lewis S. Rose 1935-5-16 35166 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC327806  Monolopia gracilens Alice Eastwood 1915-5-30 4518 Contra Costa Mt. Diablo Comment
  JEPS99497  Monolopia gracilens Mary Bowerman 1979-5-2 Contra Costa Mount Diablo, Old Mines Trail, Back Canyon. Comment
  CAS-BOT-BC349615  Monolopia major Dr. A. Kellogg; W. G. W. Harford 1969-4-8 508 Contra Costa Antioch Comment
  CAS-BOT-BC349616  Monolopia major W. W. Carruth 1902-4-1 s.n. Contra Costa Redwood Canon [Canyon], E. Oakland Comment
  JEPS68945  Montia fontana Edward Lee 1935-2-10 1273 Contra Costa Wildcat Creek Berkeley, Berkeley Hills Comment
  UC1607685  Montia fontana Barbara Ertter, Lynne Hosley 1993-4-17 11511 Contra Costa Morgan Territory 10 air mi n of Livermore (in lee of Mount Diablo, s of Hummingbird trail,); Morgan Territory 609 Comment
  UC7869  Montia linearis H. M. Hall 1901-3-8 1626 Contra Costa Las Trampas Canyon; San Francisco Bay Region, Las Trampas Canyon Comment
  JEPS65189  Myosurus L. R. Heckard 1971-4-15 2478 Contra Costa at intersection of Holey Road, s of Byron Comment
  CAS-BOT-BC83286  Myosurus minimus H. L. Mason 1932-3-20 6854 Contra Costa Briones road. Comment
  CAS-BOT-BC83295  Myosurus minimus Peter H. Raven; D. Stone; H. L. Mason; R. Ornduff; et al. 1957-4-4 10584 Contra Costa 3.0 miles south of Byron. Comment
  CAS-BOT-BC83297  Myosurus minimus Peter H. Raven; D. Stone; H. L. Mason; R. Ornduff; et al. 1957-4-4 10583 Contra Costa 3.0 miles south of Byron. Comment
  UC1738086  Myosurus minimus H. L. Mason 1957-3-15 14268 B-2 Contra Costa 3 mi S of Byron ( on road to Herdlyn) Comment
  UC1738102  Myosurus minimus D. E. Stone 1957-4-4 70 B Contra Costa 1 mi S of Byron ( on State 4) Comment
  UC407383  Myosurus minimus Ira L. Wiggins 1930-4-17 4580 Contra Costa 1/4 mi s Byron Comment
  POM181444  Myosurus minimus I. L. Wiggins 1930-4-7 4580 Contra Costa 1/4 mile S of Byron Comment
  UC1738114  Myosurus minimus subsp. apus D. E. Stone 1955-8-29 8 -48 Contra Costa 3 mi S of Byron (on the road to Herdlyn) Comment
  JEPS65190  Myosurus sessilis L. R. Heckard 1971-4-15 2477 Contra Costa S of Byron (intersection of Holey Road) Comment
  POM166792  Myrica californica Jos. Burtt Davy 1898-3-24 4176 Contra Costa [Unspecified] Comment
  UCR141655  Myriophyllum sibiricum M. R. Bell 1950-10-9 s.n. Contra Costa Near Concord, farm of E.J. Mangini Comment
  CDA36299  Myriophyllum spicatum Ed Finley, Mark Lubinski 1988-9-26 Contra Costa Brentwood, Cruiser Haven Marina. 7000 Orwood Road. 0 Comment
  UC2031468  Myriophyllum verticillatum Barbara Ertter with Brad Olson 1991-9-28 10837 Contra Costa San Pablo Reservoir between Orinda and El Sobrante Comment
  UC2042751  Myriophyllum verticillatum Barbara Ertter with Lynne Hosley 1991-9-22 10822 Contra Costa Lafayette Reservoir in hills SW of Lafayette, in water at E end of dam. Comment
  CHSC106698  Najas guadalupensis Barbara Ertter; Brad Olson 1991-9-28 10838 Contra Costa San Pablo Reservoir between Orinda and El Sobrante, in shallow water at S end of reservoir. 91 Comment
  SD211501  Najas guadalupensis Barbara Ertter, Brad Olson 1991-9-28 10838 Contra Costa San Pable Reservoir between Orinda and El Sobrante, in shallow water at Sout end of reservoir 91 Comment
  UC2028254  Narcissus Barbara Ertter with Gary Schoolcraft 1996-4-7 14581 Contra Costa Molate Beach Park on San Francisco Bay north of San Rafael Bridge, coastal prairie and brushland on bluff Comment
  CDA29507  Nassella pulchra D. G. Kelch, Troy MacGregor 2009-5-1 9 .278 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  POM295472  Nassella pulchra Lyman Benson 1935-3-16 6285 Contra Costa Mt. Diablo, Watershed: Walnut Creek; Mountain Range: Mt. Diablo. 305 Comment
  UC60251  Nassella pulchra Jos. Burtt Davy 1899-4-19 7864 Contra Costa Las Trampas Peak Comment
  UC692388  Nassella pulchra Mary L. Bowerman 1933-5-25 2191 Contra Costa w end south face (gentle e-facing hill just below the steep face); Mount Diablo, Oyster Ridge Comment
  POM300685  Nassella pulchra Mary L. Bowerman 1933-5-9 2036 Contra Costa East of Pioneer Camp Comment
  UC335966  Navarretia cotulifolia J. G. Lemmon Contra Costa Mount Diablo Comment
  UC2042987  Navarretia intertexta subsp. intertexta Barbara Ertter with Alan Prather 2003-6-7 18206 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, shortcut between Coyote Trail and Stone Corral Trail. Comment
  LA206696  Navarretia mellita John Thomas Howell; 1938-6-30 13938 Contra Costa head of Siesta Valley Comment
  SEINET12271290  Navarretia mellita J. T. Howell 1938-1 13938 Contra Costa head of Siesta Valley Comment
  UC2028260  Navarretia mellita Barbara Ertter 1999-6-12 16720 Contra Costa Knobcone Point Road on south side of Mount Diablo, burned chamissal at head of NE fork of Sycamore Creek. Comment
  UCD48584  Navarretia mellita H. L. Mason 1945-6-12 12588 Contra Costa Ridge south east of Mount Diablo near summit of road up Marsh Creek, Contra Costa County, California. Comment
  JEPS116940  Navarretia nigelliformis subsp. radians David Gowen 2008-4-21 867 Contra Costa South of Antioch, in Contra Loma Regional Park off Frederickson Lane. North, to northwest facing slope just NW of parking area for Black Diamond Mines Regional Preserve. Comment
  RSA469883  Navarretia pubescens Thekla Mohr 1917-07 3155 Contra Costa Mount Diablo Comment
  SEINET3696157 Image available Navarretia squarrosa Lewis S. Rose 1934-6-18 34288 Contra Costa Berkeley Hills. Comment
  JEPS103662  Navarretia viscidula David Gowen 2003-7-9 Contra Costa Lime Ridge Open Space, grassy areas at N end 188 Comment
  CAS-BOT-BC7190  Nemophila decumbens M. K. Curran 1883-5-1 s.n. Contra Costa Mt. Diablo Comment
  JEPS3220  Nemophila heterophylla W. L. Jepson 1923-4-22 9868 Contra Costa Mt. Diablo Vicinity of San Francisco Bay, Mt. Diablo Comment
  UC1377695  Nemophila heterophylla W. J. Dress 1951-2-24 3021 Contra Costa ca 1 mi nw of n gate Mt. Diablo State Park; nw of north gate Mt. Diablo State Park Comment
  UC24180  Nemophila heterophylla Jos. Burtt Davy 1901-4-21 6922 Contra Costa Wildcat Canyon Comment
  POM196037  Nemophila heterophylla R. Raven 1929-3-31 s.n. Contra Costa Marsh Creek Canyon. Comment
  POM65297  Nemophila heterophylla C. F. Baker 1903-4-28 2812 Contra Costa Mitchell s Canyon, Mt. Diablo. Comment
  RSA421271  Nemophila heterophylla H. de Forest 1930-4-6 s.n. Contra Costa [No location information on label.] Comment
  SEINET3156480  Nemophila insignis L. S. Rose 1941-3-13 41029 Contra Costa 3 miles W of Byron 30 Comment
  JEPS111831  Nemophila menziesii var. menziesii D. G. Kelch 2005-3-25 05 .96 Contra Costa Fernandez Ranch Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak 115 Comment
  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
  UC691711  Nemophila pedunculata Mary L. Bowerman 1933-4-9 1831 Contra Costa Donner Canyon Mount Diablo, , w fork (w fork, Mount Diablo) 243 Comment
  UC767551  Nemophila pedunculata R. F. Hoover 1938-3-5 2816 Contra Costa mouth of Kirker Creek Canyon Comment
  POM181437  Nicotiana glauca I. L. Wiggins 1930-4-18 4604 Contra Costa East end of Jersey Island. Comment
  UC691506  Nicotiana quadrivalvis Mary L. Bowerman 1936-6-20 3416 Contra Costa ridge w Mount Zion (w side of ridge, road bending up canyon to south); Mount Diablo 213 Comment
  CDA5796  Nicotiana tabacum R. DeBoer 1966-12-2 Contra Costa Golden Gate Fish Co., Point San Pablo, Richmond. 0 Comment
  UC1084399  Nuttallanthus texanus G. Thomas Robbins 1937-4-17 132 Contra Costa near Point Richmond Comment
  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
  CAS-BOT-BC235130  Oemleria cerasiformis James R. Shevock 2012-8-12 40657 Contra Costa San Francisco Bay Region. Tilden Regional Park, East Bay Regional Park District. Along Grizzly Peak Trail about midway between the upper and lower trailheads 448 Comment
  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
  JEPS112085  Oemleria cerasiformis D. G. Kelch 2004-3-5 04 .14 Contra Costa Sky Ranch Dutra Fire Road. Franklin Canyon 90 Comment
  RSA610758  Oemleria cerasiformis Joseph A. Ewan 1935-3-2 9081 Contra Costa wildcat canyon. Comment
  UCD144309  Oenanthe sarmentosa G. F. Hrusa; D. Crowe 1998-5-8 14356 Contra Costa Sacramento-San Joaquin River Delta. On Dow Chemical property at Pittsburg. 5 Comment
  RSA34666  Oenothera deltoides subsp. howellii P. A. Munz 1947-10-8 12201 Contra Costa Sand dunes east of Antioch 8 Comment
  RSA119390  Oenothera deltoides subsp. howellii William M. Klein 1958-6-9 441 Contra Costa Sandhills N of Antoch, along the San Joaquin River Channel. 2 Comment
  RSA119394  Oenothera deltoides subsp. howellii William M. Klein 1958-6-9 440 Contra Costa Sandhills N of Antoch, along the San Joaquin River Channel. 2 Comment
  RSA119418  Oenothera deltoides subsp. howellii William M. Klein 1958-6-9 434 Contra Costa Sandhills N of Antoch, along the San Joaquin River Channel. 2 Comment
  UC692444  Oenothera elata subsp. hookeri Mary L. Bowerman 1930-6-28 397 Contra Costa Lower Silver Spring Mount Diablo Comment
  CDA36713  Olea europaea D. G. Kelch 2010-10-5 10 .417 Contra Costa The Delta; Just east of Antioch bridge. Comment
  UC27891  Orobanche bulbosa F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  UC691505  Orobanche fasciculata Mary L. Bowerman 1935-5-16 2995 Contra Costa Mount Diablo. Russelman Park, just south of the north boundary of section 25 (east of gate). Comment
  UC691743  Orobanche fasciculata Mary L. Bowerman 1933-6-7 2255 Contra Costa Mount Diablo. North Peak Ridge, south face. Comment
  CAS-BOT-BC499853  Orobanche fasciculata Paul F. Covel 1936-5-17 124 Contra Costa Mt. Diablo (near summit) 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
  JEPS10809  Orobanche uniflora subsp. occidentalis W. L. Jepson 1925-4-26 10693 Contra Costa Mt. Diablo. Comment
Read comments
Sep 13 2017
  JEPS10840  Orobanche uniflora subsp. occidentalis Mary L. Bowerman 1935-4-22 2895 Contra Costa Ridge west of Pioneer Road (west of Old Stage Road); Grassy hillside with northwest exposure. Comment
  CAS-BOT-BC500251  Orobanche uniflora subsp. occidentalis John Thomas Howell 1940-4-21 15401 Contra Costa Pine Canyon, Mt. Diablo Comment
  JEPS82723  Orobanche vallicola Wayne Roderick 1981-10-2 Contra Costa s. entrance area Briones Regional Park 152 Comment
  POM15364  Orthocarpus erianthus C. F. Baker 1903-4-27 2792 Contra Costa Byron. Comment
  RSA516499  Orthocarpus erianthus Robert F. Hoover 1938-2-27 2783 Contra Costa Danville. Comment
  UC2062643  Osmorhiza berteroi Barbara Ertter with Mike Park, David Gowen, and Victoria Seidman 2004-4-26 18370 Contra Costa Curry Canyon between Alder Creek and Rhine Canyon, south side of Mount Diablo. Comment
  JEPS99556  Osmorhiza chilensis Mary L. Bowerman 1975-6-7 Contra Costa Mount Diablo, Big Spring 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
  CDA28456  Oxalis carnosa G. D. Barbe 1976-3-25 2117 Contra Costa International Succulent Institute, 10 Corte Sombrita, between Moraga and Orinda. 0 Comment
  SEINET920557  Oxalis corniculata August Hartman 1960-1 32 Contra Costa 2055 Carmel Drive, Concord. 22 Comment
  JEPS111578  Oxalis pes-caprae D. G. Kelch 2003-3-21 03 .53 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  UC2028103  Packera breweri Barbara Ertter with Christopher Baysdorfer 1998-5-10 16124 Contra Costa West side Lime Ridge Open Space northwest of Mount Diablo. Comment
  RSA125862  Paeonia californica G. R. Campbell 1956-4-6 15 Contra Costa Between Round Top and summit of Mt. Diablo. 305 Comment
  UC2029172  Panicum dichotomiflorum Barbara Ertter 2000-7-16 17415 Contra Costa Diablo Foothills Regional Park, west end of Northgate Trail behind stables along Little Pine Creek, waste area. Comment
  UC1818876  Panicum miliaceum subsp. miliaceum Barbara Ertter 1995-8-19 14505 Contra Costa Edge of Cerrito Creek on north side of Albany Hill, south edge of El Cerrito; dense weeds at edge of sluggish water. Comment
  RSA721592  Papaver californicum Mary L. Bowerman 1978-5-14 s.n. Contra Costa Mount Diablo. E side of Eagle Peak, old mine wagon trail up Black Canyon. Comment
  UC1795772  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 Comment
  UCD88472  Parapholis incurva Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  CAS-BOT-BC259649  Paspalum dilatatum Virginia I. Dains; Walter Knight 1986-8-8 5498 Contra Costa Contra Costa - San Joaquin Delta Area. Jct Rock S1 and Werner Cut, above high water mark on east facing levee Comment
  UCD88942  Paspalum distichum E. K. Stillwell 1967-7-17 s.n. Contra Costa Brentwood. Comment
  JEPS108356  Pectocarya pusilla David Gowen 2005-4-4 225 Contra Costa Sibley Regional Preserve. East of Round Top and ouside of the park. NE-facing slope half way down to the valley. Comment
  POM286383  Pedicularis densiflora Lyman Benson 1931-3-18 2662 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 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
  UCD123307  Pedicularis densiflora Robert C. Bechtel 1952-4-12 54 Contra Costa Mt. Diablo. Comment
  RSA91021  Pediomelum californicum F. W. Peirson 1923-7-1 3618 Contra Costa Near summit of Mt. Diablo. Comment
  JEPS112051  Pellaea andromedifolia A. G. Murdock 2004-4-30 247 Contra Costa Franklin Canyon - McHarry Ranch Rd 126 Comment
  UC1618363  Pennisetum villosum Barbara Ertter, Brad Olson 1993-10-30 12290 Contra Costa w of railroad tracks n of mouth of Pinole Creek (along railroad track, San Pablo Regional Shoreline); San Pablo Regional Shoreline Comment
  NY583852  Penstemon centranthifolius A. Kellogg 1869-4-8 680 Contra Costa Antioch Comment
  SEINET12320780  Penstemon centranthifolius Unknown 1980-1 3879 Contra Costa Lime Ridge, N end, S of Ygnacio Valley Rd between Walnut Creek & Concord Comment
  SEINET12320781  Penstemon centranthifolius N. Havlik, Knight, W.; Knight, I. 1980-1 3878 Contra Costa about 1500 ft from Nortonville Pass intersection enroute to Laugher homestead, near old mining town Comment
  JEPS85627  Penstemon heterophyllus var. heterophyllus W. L. Jepson 1921-6-16 9315 Contra Costa Mt. Diablo Comment
  UC691800  Pentachaeta alsinoides Mary L. Bowerman 1933-3-18 1753 Contra Costa Meridian Peak Mount Diablo (a little e of the meridian) Comment
  UC691801  Pentachaeta alsinoides Mary L. Bowerman 1931-4-11 687 Contra Costa Pine Canyon Mount Diablo 121 Comment
  UC831505  Pentachaeta alsinoides Lewis S. Rose 1940-4-30 40251 Contra Costa 5 mi e Clayton; Marsh Creek 60 Comment
  UC697213  Pentachaeta exilis Mary L. Bowerman 1933-5-10 2062 Contra Costa ridge at e end and s of Meridian Flat; Mount Diablo 822 Comment
  CAS-BOT-BC71614  Pentagramma triangularis D. E. Breedlove 1970-4-18 17426 Contra Costa at the north edge of Lafayette above Laurel Drive 243 Comment
  UC692564  Perideridia californica Mary L. Bowerman 1935-6-15 3134 Contra Costa Mitchell Canyon Mount Diablo (in stones of streambed at point where stream disappears) 640 Comment
  UC1606429  Perideridia kelloggii Barbara Ertter, Brad Olson 1993-8-8 12203 Contra Costa sw San Ramon; Bishop Ranch Regional Open Space Comment
  UC692566  Perideridia kelloggii Mary L. Bowerman 1935-6-28 3158 Contra Costa w meridian (flat on n side); Mount Diablo, Inner Black Hills 472 Comment
  UC692378  Perideridia kelloggii Mary L. Bowerman 1933-4-22 1903 Contra Costa w 1970 point; Mount Diablo, Inner Black Hills Comment
  UC1389992  Perideridia oregana T. I. Chuang, L. Constance, R. S. Mitchell, and S. Banwar 1965-7-23 6007 Contra Costa between Green Valley and Pine Creek; Mount Diablo Comment
  CAS-BOT-BC413780  Persicaria lapathifolia Walter Knight 1978-8-27 3166 Contra Costa Contra Loma Regional Park 30 Comment
  UC162556  Phacelia breweri H. M. Hall 1901-4-5 1748 Contra Costa Mt. Diablo Region of San Francisco Bay 853 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
  UC24302 Image available Phacelia breweri W. H. Brewer 1862-5-7 1058 Contra Costa summit Monte Diablo; summit of Mt. Diablo Comment
  JEPS2229  Phacelia californica R. F. Hoover 1938-2-21 2753 Contra Costa Point Richmond 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
  JEPS2399  Phacelia distans R. F. Hoover 1937-5-14 2116 Contra Costa Antioch sand-dunes Comment
  JEPS73329  Phacelia distans Edward Lee 1935-3-10 1297 A Contra Costa e Antioch; Antioch Sand Dunes Comment
  UC107400  Phacelia distans T. S. Brandegee May 1889 Contra Costa Byron Springs Comment
  UC107401  Phacelia distans T. S. Brandegee May 1889 Contra Costa Antioch Comment
  UCD102384  Phacelia distans Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 960 Comment
  UCD120412  Phacelia distans P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UC691703  Phacelia divaricata Mary L. Bowerman 1935-4-26 2897 Contra Costa w Indian Ceremonial Spring (hillside); Mount Diablo 1021 Comment
  JEPS111837  Phacelia imbricata subsp. imbricata A. G. Murdock 2004-5-28 275 Contra Costa Pinole Peak 405 Comment
  UC735091  Phacelia imbricata subsp. imbricata Lincoln Constance, T. Morley, R. H. Shan, and W. H. Wagner 1946-4-26 3035 Contra Costa below Devil's Pulpit; Mount Diablo, Devil's Elbow 1127 Comment
  UCSB46349  Phacelia nemoralis Hawbecker, M. 1983-5-7 Contra Costa Roadside trail, 2 miles off of Grizzly Peak Road, 7.3 miles north of Marin Ave. 502 Comment
  JEPS1104  Phacelia phacelioides Mary L. Bowerman 1930-6-7 285 Contra Costa Meridian Peak summit Mount Diablo Comment
  POM118166  Phacelia phacelioides H. M. Hall, Essig 1916-5-31 10135 Contra Costa Mount Diablo 1140 Comment
  POM300985  Phacelia phacelioides Mary L. Bowerman 1935-5-8 2974 Contra Costa Muir Area. 1006 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
  JEPS1284  Phacelia tanacetifolia Linda Gehringer 1914-3-29 Contra Costa Brentwood Comment
  SEINET3558886 Image available Phacelia tanacetifolia Lewis S. Rose 1933-4-17 33091 Contra Costa Antioch. Comment
  UC35529  Phacelia tanacetifolia Chesnut and Drew 1889-4-17 Contra Costa Summerville Comment
  RSA721532  Phalaris aquatica Mary L. Bowerman 1994-6-4 s.n. Contra Costa Mount Diablo; at E end of Castle Rock Park, perhaps just outside park. Comment
  UC1101560  Phalaris arundinacea Malcolm A. Nobs 1948-9-23 683 Contra Costa 7 mi s Kingston (Rock Slough); Rock Slough Comment
Read comments
Oct 8 2012
  SEINET11680669  Phalaris lemmonii I. L. Wiggins 1930-1 4583 Contra Costa 0.25 mi S of Byron Comment
  JEPS41048  Phalaris minor Rimo Bacigalupi and L. R. Heckard 1965-5-11 9073 Contra Costa strand at nw Brooks Island (sw of Richmond); San Francisco Bay, strand nw of Brooks Island Comment
  UC820506  Phalaris minor John Thomas Howell 1933-5-14 11234 Contra Costa St. Mary's College Comment
  CAS-BOT-BC250683  Phalaris paradoxa John Thomas Howell 1933-5-14 11235 Contra Costa St. Mary's College Comment
  UC1132440  Phalaris paradoxa C. M. Belshaw 1936-5-13 2122 Contra Costa se Deer Valley (Plot 37); Mt. Diablo Quad. Comment
  UC2028531  Phalaris paradoxa Barbara Ertter 1998-5-3 16030 Contra Costa Macedo Ranch at southwest base of Mount Diablo. Comment
  UC52449  Phlox gracilis H. M. Hall 1901-3-22 1685 Contra Costa Port Costa San Francisco Bay Region Comment
  PASA2099  Pholistoma membranaceum Annetta Carter 1929-3-31 Contra Costa near Clayton Comment
  UC1795770  Phoradendron macrophyllum Barbara Ertter, Brad Olson, Diane Lake, Seth Adams, et al. 1994-9-11 13085 Contra Costa Chaparral Springs addition to Mt. Diablo State Park, north side of Marsh Creek Road at high point southeast of Clayton, open oak woodland (Canyon live oak, blue oak, buckeye); north facing slope with local grove of Fraxinus, Aesculus, toyon. Comment
  CDA8371  Phragmites australis D. G. Kelch, A. G. Murdock 2003-8-13 3 .101 Contra Costa Carquinez Strait; Salt Marsh E of Marina. Martinez. Comment
Read comments
Mar 11 2011
  POM199098  Phragmites australis A. D. E. Elmer 1903-07 4541 Contra Costa Martinez Comment
  UC1607654  Phragmites australis Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, and Amy Hiss 1991-8-18 10707 Contra Costa n Pittsburg (near confluence of Sacramento and San Joaquin Rivers, opposite Pittsburg Marina, near w end of <Browns> Island); Browns Island Comment
  UC311199  Phragmites australis A. D. E. Elmer July 1903 4541 Contra Costa Martinez Comment
  CAS-BOT-BC260885  Phragmites australis Doreen Smith 2003-10-25 s.n. Contra Costa Martinez shoreline Comment
  UC1051055  Phygelius capensis N. Floy Bracelin 1942-12-6 2333 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  RSA0029680  Phyla nodiflora var. nodiflora Barbara Ertter, Tony Morosco 1998-9-18 16429 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, unmined land near north quarry area [subsequently developed]. 122 Comment
  UC1949170  Phyla nodiflora var. nodiflora Barbara Ertter 1990-9-10 9634 Contra Costa Briones Regional Park, Briones hills S of Martinez, dried margin of Maricich Lagoon at junction of Alhambra Creek Trail and Old Briones Road Comment
  UC692692  Pickeringia montana var. montana Mary L. Bowerman 1931-5-2 793 Contra Costa Eagle Point Ridge Mount Diablo (n end) Comment
  UCD48018  Picrasma quassioides Ellen Dean; Petra Unger 2005-7-19 2700 Contra Costa Contra Costa Water District land, Byron Tract, just S of Hwy 4, along Old River, on the east bank. 1 Comment
  SBBG56314  Pilularia americana K. Brandegee 1909-4-24 Contra Costa Briones Rd, between Antioch and Marsh Crk Comment
  UC534973  Pilularia americana Katharine Brandegee 1909-4-24 Contra Costa between Antioch and Marsh Creek (Briones Rd.) Comment
  JEPS47895  Pinus attenuata W. L. Jepson 1923-4-22 9876 Contra Costa Mt. Diablo Mt. Diablo (rocky ridge in chaparral) Comment
  SBBG336  Pinus attenuata J. M. Tucker 1941-9-26 411 Contra Costa summit of Moraga Ridge 500 Comment
Read comments
Sep 13 2011
  UC691929  Pinus attenuata Mary L. Bowerman 1932-3-20 1121 a Contra Costa toward top of middle ridge (in ne fork of creek); Mount Diablo, Inner Black Hills, Sycamore Creek Comment
  UC1051358  Pinus muricata N. Floy Bracelin 1941-10-19 1713 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  UC806729  Pinus pinaster Robert E. Burton Contra Costa near Valle Vista (south of Moraga) (n of Redwood road near creek) Comment
  CDA23630  Pinus radiata D. G. Kelch 2007-9-8 7 .578 Contra Costa Carquinez Strait; Pinole Valley Park. Comment
  UC1051348  Pinus radiata N. Floy Bracelin 1941-12-29 1833 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  JEPS48207  Pinus sabiniana W. L. Jepson 1909-6-25 3118 Contra Costa Mt. Diablo Comment
  UC1200775  Pinus thunbergii L. R. Wright 1960-3-10 Contra Costa near Bryant Reservoir <Briones?>; Orinda Comment
  UC2028244  Pistacia atlantica Barbara Ertter, Tony Morosco 1998-9-18 16418 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, western quarry area. Comment
  UC2061504  Pittosporum undulatum Dean G. Kelch 2016-5-27 16 .135 Contra Costa Miller-Knox Hill. Comment
  CDA1347  Plagiobothrys acanthocarpus D. G. Kelch 1992-3-21 1825 -A Contra Costa 2.5 mi. SE of Byron; along RR tracks, N of junction of Holey Rd. and Byron Hwy. 0 Comment
  JEPS25356  Plagiobothrys acanthocarpus Rimo Bacigalupi with Paul C. Hutchison and John Weiler 1959-3-19 6966 Contra Costa 1 mi se Byron (fields e of Byron rd) 6 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
  JEPS116911  Plagiobothrys acanthocarpus David Gowen 2009-3-31 977 Contra Costa Black Diamond Regional Preserve. Large open flat east of Lower Oil Canyon Trail. Comment
  UC73948  Plagiobothrys bracteatus Harley P. Chandler 1901-3-22 878 Contra Costa Rodeo Canyon Comment
  UC882304  Plagiobothrys bracteatus Joseph Andorfer Ewan 1936-5-24 9698 Contra Costa w slope Bald Peak; San Pablo Ridge Comment
  UC517994  Plagiobothrys canescens Lewis S. Rose 1933-3-29 33046 Contra Costa Pittsburg Comment
  UC882307  Plagiobothrys canescens Lewis S. Rose 1933-3-29 33046 Contra Costa Pittsburg Comment
  JEPS116860  Plagiobothrys fulvus var. campestris David Gowen 2007-4-13 670 Contra Costa Diablo Foothills, west of the grassy field at Castle Rock Recreation Area. Comment
  JEPS116917  Plagiobothrys humistratus David Gowen, Chris Thayer 2009-4-6 983 Contra Costa Cowell Ranch west of dam. Comment
  SEINET1869807  Plagiobothrys leptocladus Barbara Ertter, Jim Jokerst and Dave Magney 1989-1 8129 Contra Costa Alkali sink W and adjacent to Clifton Court Forebay, ca 15 air miles SW of Stockton. 0 Comment
  UC1069046  Plagiobothrys nothofulvus R. C. Wilson 1935-3-29 161 Contra Costa 1/2 mi w Deer Flat; Mt. Diablo Quadrangle Comment
  UC1084518  Plagiobothrys nothofulvus Chas. T. Mason 1949-3-30 Contra Costa Byron Comment
  UC536016  Plagiobothrys nothofulvus Laurence S. Jones 1934-4-8 44 Contra Costa w slope Mt. Diablo (approx 3 mi surface distance from peak) 609 Comment
  POM368871  Plagiobothrys nothofulvus H. de Forest 1930-3-28 s.n. Contra Costa Contra Costa County Comment
  UCSB5650  Plagiobothrys stipitatus Robbins, G. 1937-4-25 Contra Costa Along roadside; 2 miles east of Alamo Comment
  JEPS127669  Plagiobothrys stipitatus var. micranthus Barbara Ertter with David Gowen and Michael Park 2017-5-2 22799 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  JEPS65186  Plagiobothrys stipitatus var. micranthus L. R. Heckard 1971-4-15 2481 Contra Costa s Byron (at intersection of Holey Rd.) Comment
  RSA666361  Plagiobothrys stipitatus var. micranthus Barbara Ertter, J. D. Jokerst, D. Magney 1989-4-5 8126 Contra Costa SE Contra Costa: alkali sink W and adjacent to Clifton Court Forebay, ca 15 air miles SW of Stockton 0 Comment
  UC78204  Plagiobothrys stipitatus var. stipitatus K. Brandegee 1889-5-1 Contra Costa Antioch Comment
  UC726183  Plagiobothrys stipitatus var. stipitatus A. A. Heller 1942-4-12 Contra Costa 5 mi sw Antioch crossing of Brentwood and Marsh Creek Roads Comment
  UC191656  Plagiobothrys trachycarpus E. L. Greene 1888-3-28 Contra Costa Byron Springs Comment
  RSA756696  Plantago bigelovii subsp. californica Barbara J. Ertter, Jim Jokerst, Dave Magney 1989-4-5 8128 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  JEPS22058  Plantago coronopus G. Thomas Robbins 1958-7-13 3899 Contra Costa n end Berrellesa Street, Martinez; Carquinez Strait Comment
  JEPS22059  Plantago coronopus G. Thomas Robbins 1958-7-13 3899 Contra Costa n end Berrellesa Street, Martinez; Carquinez Strait Comment
  UC1745837  Plantago elongata Annetta M. Carter 1935-3-10 752 Contra Costa Kirker Pass, Donovan Rd. to Pittsburg. Comment
  UC1950081  Plantago elongata Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8128 Contra Costa alkali sink W and adjacent to Clifton Court Forebay, ca 15 airmiles SW of Stockton Comment
  JEPS68980  Plantago erecta Edward Lee 1935-3-29 1315 Contra Costa Nortonville, s watershed of Kirker Pass Kirker Pass, Nortonville Comment
  JEPS99965  Plantago lanceolata G. Smick 2003-5-30 GAS 203 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1818866  Plantago lanceolata Barbara Ertter, Kristin Ertter 1995-7-11 14475 Contra Costa Sulfur Spring on Pine Cr, Diblo Foothill Regional Park, marshy wet ground. 121 Comment
  JEPS21710  Plantago major John Thomas Howell 1955-8-24 30898 Contra Costa near Diablo Country Club Comment
  JEPS78614  Plantago subnuda Walter Knight, L. R. Heckard, and Bert Johnson 1978-9-28 3298 Contra Costa Botany Cove, Browns Island Comment
  UC101593  Platystemon californicus Katharine Brandegee 1907-5-5 e Contra Costa between Antioch and Marsh Creek; between Antioch and Marsh Creek Comment
  UC101599  Platystemon californicus Katharine Brandegee 1907-5-5 a Contra Costa between Antioch and Marsh Creek; between Antioch and Marsh Creek Comment
  UC1126493  Platystemon californicus R. C. Wilson 1935-3-26 143 Contra Costa 2 mi n Walnut Creek; Concord Quad. Comment
  UC566962  Platystemon californicus R. C. Wilson 1935-3-26 143 Contra Costa 2 mi n Walnut Creek; Concord Quad. Comment
  CAS-BOT-BC91606  Platystemon californicus Alice Eastwood 1906-5-1 s.n. Contra Costa Berkeley. Comment
  JEPS6155  Plectritis brachystemon L. T. Dempster 1954-5-29 P 14 Contra Costa Orinda, Canyon Drive Orinda; , Canyon Drive Comment
  JEPS6157  Plectritis brachystemon L. T. Dempster 1954-5-18 P 8 Contra Costa Orinda, Lake Cascada Lake Cascada; Orinda, Lake Cascada Comment
  JEPS4797  Plectritis ciliosa subsp. ciliosa W. L. Jepson 1922-5-23 9665 Contra Costa Mount Diablo Comment
  JEPS6156  Plectritis congesta L. T. Dempster 1954-6-4 Contra Costa N of Orinda Wildcat Canyon Road Comment
  JEPS75498  Plectritis macrocera P. F. Yorks 1975-4-10 379 Contra Costa 1.9 km s of Bear Creek Road on Hampton Road in Hampton Road Natural Reserve, n or Briones Reservoir Hampton Road Natural Reserve 200 Comment
  UC2027993  Plectritis macrocera Barbara Ertter with Tony Morosco 1998-4-12 16025 Contra Costa Connector trail on north side of Mount Olympia, north side of Mount Diablo. 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-BC260945  Pleuropogon californicus var. californicus Ynes Mexia 1929-4-21 2388 Contra Costa Junction of Franklin Canyon Comment
  CAS-BOT-BC260946  Pleuropogon californicus var. californicus Peter Kamb; Francia Chisaki; Galen Smith 1951-4-14 1978 Contra Costa Margins of small pond 0.2 miles south of junction of Highways 4 and 21, 7 miles north of Walnut Creek Comment
  UC692329  Poa howellii Mary L. Bowerman 1933-5-22 2167 Contra Costa w of 1970 Inner Black Hills; Mt Diablo, Inner Black Hills Comment
  UC912661  Poa howellii Herbert L. Mason 1928-4-15 4350 Contra Costa e end Moraga Ridge Comment
  UCD91129  Poa howellii P. B. Kennedy 1916-1 s.n. Contra Costa Pinehurst. Comment
  CAS-BOT-BC246648  Poa howellii Mary L. Bowerman 1933-5-21 2148 Contra Costa Mount Diablo. Below Grape Spring (south from Curry Canyon) Comment
  JEPS71285  Poa secunda W. L. Jepson 1925-4-26 10687 Contra Costa Black Hills Mt Diablo Comment
  CAS-BOT-BC236397  Poa secunda subsp. secunda Alice Eastwood 1893-5-3 s.n. Contra Costa Antioch Comment
  UC38696  Poa secunda subsp. secunda J. Burtt Davy 1895-4-8 898 Contra Costa Antioch Comment
  UC39568  Poa secunda subsp. secunda Alice Eastwood 1893-5-3 Contra Costa Antioch Comment
  UC691189  Poa secunda subsp. secunda Mary L. Bowerman 1931-4-11 693 Contra Costa Pine Canyon; Mt Diablo 121 Comment
  UC692472  Poa secunda subsp. secunda Mary L. Bowerman 1935-5-18 3028 Contra Costa n of summit parking area Meridian Peak; Mt Diablo 1036 Comment
  UC790973  Poa secunda subsp. secunda A. A. Beetle 1941-3-23 1713 Contra Costa 1 mi e St Mary's College 182 Comment
  UCD91671  Poa secunda subsp. secunda P. B. Kennedy 1916-5-1 s.n. Contra Costa Pinehurst. Comment
  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
  UC25592  Pogogyne douglasii subsp. parviflora W. L. Jepson May 23-24 1891 Contra Costa Mount Diablo Comment
  UC1613281  Pogogyne serpylloides Charles M. Belshaw 1935-6-24 787 Contra Costa 1/2 mi e of Grizzly Peak (n face of Bald Peak); Bald Peak Comment
  JEPS128782  Pogogyne serpylloides Kevin Hintsa 1999-5-25 Contra Costa Mount Diablo State Park, on Meridian Ridge Road a few yards from Deer Flat. Comment
  RSA0022141  Pogogyne serpylloides Mary L. Bowerman 1931-5-21 876 Contra Costa Curry Canon. Hard, open flat by Olafsons barn 274 Comment
  UC2028029  Pogogyne serpylloides Barbara Ertter 1997-9-14 15803 Contra Costa WSW base of Mount Diablo, along creek at fence line between Pine Ridge and lower Wall Point Road from Macedo Ranch. Comment
  JEPS62482  Pogogyne zizyphoroides Chestnut and Drew 1889-4-18 Contra Costa Antioch Comment
  UC32588  Pogogyne zizyphoroides Chestnut and Drew 1889-4-18 Contra Costa Antioch Comment
  CDA23065  Polycarpon tetraphyllum D. G. Kelch, D. A. Weinstein 2008-5-5 8 .091 Contra Costa Carquinez Strait; Richmond. W Chevy s Hill. N parking lot of Hilltop Mall. Comment
  UC1192326  Polygonum amphibium Malcolm A. Nobs and S. Galen Smith 1949-7-7 938 Contra Costa Webb Island Sacramento Delta peat lands Comment
  JEPS48933  Polygonum amphibium var. emersum W. L. Jepson 1944-10-27 27551 Contra Costa Moraga Valley; in a deep ditch Comment
  JEPS76288  Polygonum amphibium var. emersum W. L. Jepson 1944-7-23 27538 Contra Costa w side of valley near Moraga Pass; Moraga Valley Comment
  POM181450  Polygonum aviculare I. L. Wiggins 1930-4-18 4612 Contra Costa East end of Jersey Island. Comment
  UC650682  Polygonum aviculare subsp. aviculare Ira L. Wiggins 1930-4-18 4612 Contra Costa Jersey Island Comment
  CDA33739  Polygonum odoratum White 2010-12-14 s.n. Contra Costa Oakley. 40 Meek Lane. 0 Comment
  JEPS95765  Polygonum ramosissimum Dianne Lake 1999-10-5 Contra Costa NW end of wetland at NE corner of Plymouth and Hillcrest, 1 block N of E 18th St. Antioch 3 Comment
  CDA42731  Polypodium calirhiza D. G. Kelch 2004-3-5 4 .004 Contra Costa Carquinez Strait Region; Rankin Park Open Space, Martinez. Comment
  CAS-BOT-BC422367  Polypogon Peter Rubtzoff 1968-9-19 5967 Contra Costa Russellman Park Road, 0.7 miles south of Marsh Creek Road. Comment
  RSA0024902  Polypogon Peter Rubtzoff 1968-9-18 5966 Contra Costa North Gate Road, ca. 5 miles northwest of Mt. Diablo State Park north entrance. Comment
  CAS-BOT-BC232582  Polypogon monspeliensis A. A. Beetle 1941-6-24 1750 Contra Costa Point Richmond on San Francisco Bay Comment
  CDA2351  Polypogon monspeliensis A. A. Beetle 1941-6-24 1750 Contra Costa Point Richmond on San Francisco Bay 0 Comment
  JEPS100034  Polypogon monspeliensis A. Langston 2003-6-6 AL 36 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1819045  Polypogon monspeliensis Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14234 Contra Costa South side Mount Diablo, Sheepherder Springs complex 1/2 mile north of Curry Point, wet ground in grassland. 487 Comment
  CAS-BOT-BC232580  Polypogon monspeliensis Niall McCarten; V. I. Daina 1986-6-1 04141057 5 Contra Costa E of Byron Highway, N of Clifton Court Road Comment
  SEINET10960581  Polypogon monspeliensis Thomas Morley 1940-11-21 Morley 85 Contra Costa Associated with Salix, typha, and Cyperus in fine, rich moist soil; banks at upper end of San Leandro Lake near mouth of Redwood Creek 130 Comment
  RSA0026148  Polypogon viridis Barbara Ertter 1998-6-20 16256 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, wet margin of Willow Spring Pond south of Ginder Gap. Comment
  UC579898  Populus fremontii subsp. fremontii Annetta Carter 1934-3-30 466 Contra Costa Nortonville Comment
  CAS-BOT-BC105604  Populus trichocarpa Marian L. Campbell 1921-7-26 s.n. Contra Costa Ireland's place, Sacramento River Comment
  JEPS99587  Potamogeton pectinatus Mary Bowerman 1975-9-14 Contra Costa Mount Diablo, Hidden Pond. Comment
  SEINET11268163  Potamogeton pectinatus Barbara Ertter 1998-6-20 16254 Contra Costa NW side of Mount Diablo, Willow Spring Pond south of Ginder Gap.; 0 Comment
  JEPS112093  Prunus cerasifera D. G. Kelch 2005-1-21 05 .5 Contra Costa Crockett - West Valona Collected along railroad tracks in West Valona across from the decommissioned sewage treatment plant. 8 Comment
  UC2027928  Prunus virginiana var. demissa Barbara Ertter with John Ginochio and Mary Bowerman 2001-5-8 17633 Contra Costa Northwest flank of Mount Diablo, headwaters of Arroyo del Cerro between Olofson Ridge and Long Ridge. Comment
  UC2031478  Pseudognaphalium beneolens Barbara Ertter with CNPS 1990-8-19 9620 Contra Costa E side of S end of Briones Reservoir N of Orinda along Bear Creek trail on EBMUD land Comment
  CAS-BOT-BC356654  Pseudognaphalium californicum Louise Dutton 1976-7-16 s.n. Contra Costa 18 Bobolink Road, Orinda 182 Comment
  UC1795643  Pseudognaphalium luteoalbum Barbara Ertter, Drew Hansen 1995-3-28 13938 Contra Costa Chevron oil refinery in northwest Richmond off of Castro St. edge of levees thru created bioremediation marsh south of Wildcat Creek. Comment
  UC2032810  Pseudognaphalium luteoalbum Doran, Andrew Scott 2012-3-20 680 Contra Costa Brooks island loading dock, North side of island. Comment
  CAS-BOT-BC356972  Pseudognaphalium luteoalbum Walter Knight 1977-7-20 s.n. Contra Costa East Bay Regional Park District. On Briones Ridge at about 1,000 ft elev. Briones Regional Park 304 Comment
  UC1733839  Psilocarphus chilensis Kay H. Beach 1941-4-30 1083 a Contra Costa near Byron Hot Springs Station Comment
  UC552339  Psilocarphus oregonus Lucile R. Mason 1935-4-9 Contra Costa Marsh Creek Comment
  UC694154  Psilocarphus tenellus Herbert L. Mason 1932-5-4 7056 Contra Costa Laundry Farm Oakland Hills Comment
  POM138987  Ptelea baldwinii subsp. crenulata H. M. Hall 1916-8-17 10277 Contra Costa Upper Horse Valley. 6 miles S of Antioch. 213 Comment
  RSA448386  Ptelea baldwinii subsp. crenulata H. de Forest 1930-4-6 s.n. Contra Costa SE of Mortonville, Small 'coal mine' ravine. 274 Comment
  JEPS40170  Ptelea crenulata W. L. Jepson 1931-4-5 15721 Contra Costa near Nortonville Comment
  JEPS40172  Ptelea crenulata W. L. Jepson 1907-4-27 2648 Contra Costa Mt. Diablo Comment
  UC17376  Ptelea crenulata J. Burtt Davy 1895-4-7 909 Contra Costa Antioch Comment
  UC17379  Ptelea crenulata W. H. Brewer 1862-5-20 1130 Contra Costa n side Mount Diablo (hill n of coal mines) Comment
  UC17380  Ptelea crenulata W. H. Brewer 1862-5-7 1052 Contra Costa n slope Mount Diablo 30 Comment
  UC306740  Ptelea crenulata A. D. E. Elmer May 1903 4327 Contra Costa Mount Diablo Comment
  UC34836  Ptelea crenulata Chesnut and Drew 1889-4-17 Contra Costa Summerville 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-BC148645  Ptelea crenulata V. Rattan; Dr. Mary Curran 1883-6-1 s.n. Contra Costa Unspecified Comment
  SBBG3977  Ptelea crenulata J. M. Tucker 1941-8-28 383 Contra Costa Curry Cyn, 3 mi S of jct of Curry Cyn Rd with Clayton-Byron Rd Comment
  SBBG71054  Ptelea crenulata J. M. Tucker 1941-8-28 383 Contra Costa Curry Cyn, 3 mi S of jct of Curry Cyn Rd with Clayton-Byron Rd Comment
  UC2062673  Ptelea crenulata Barbara Ertter 2005-11-6 18655 Contra Costa Mount Diablo State Park, road between Deer Flat and Deer Flat Creek crossing. Comment
  SEINET951733  Pteridaceae T. R. Van Devender, S. H. Stein 1980-1 Contra Costa Lafayette Reservoir Comment
  CDA33808  Pterostegia drymarioides D. G. Kelch 2010-5-15 10 .117 Contra Costa Mt. Diablo. Trail from Juniper Camp to Deer Flat. 0 Comment
  CAS-BOT-BC104161  Quercus X morehus H. E. McMinn 82 Contra Costa N slope of Mt. Diablo near summit Comment
  CAS-BOT-BC45663  Quercus agrifolia Mary L. Bowerman 1930-6-3 225 Contra Costa West road, 1.9 miles from west entrance, Mount Diablo Comment
  JEPS37364  Quercus agrifolia W. L. Jepson Oct. 1909 3498 Contra Costa Moraga Ridge Comment
  UC1135309  Quercus agrifolia R. W. Lundh 1932-8-17 132 Contra Costa 1 mi E of Round Valley 518 Comment
  UC1135337  Quercus agrifolia G. T. Nordstrom 1937-11-15 1412 Contra Costa 2.6 mi E.S.E. Round Valley 457 Comment
  CAS-BOT-BC45662  Quercus agrifolia Mary L. Bowerman 1931-9-27 1050 Contra Costa Near Quicksilver Mine on N side of Noth Peak: near gully below road to mine, toward lower limits of oaks, Mount Diablo 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
  RSA0041716  Quercus berberidifolia Mary L. Bowerman 1934-2-3 2479 Contra Costa Knob west of knoll at head of East Fork of Sycamore Canyon. Comment
  RSA0041717  Quercus berberidifolia Mary L. Bowerman 1930-10-19 490 Contra Costa South road at Garden-of-the-Gods (Fossil Ridge). Comment
  CAS-BOT-BC62698  Quercus chrysolepis Mary L. Bowerman 1931-5-16 852 Contra Costa Mt. Diablo summit, south side Comment
  OBI42731  Quercus chrysolepis Cathy Peterson 1971-11-6 4 Contra Costa Mount Diablo, south side, approx 10 yds from Rock City entrance 610 Comment
  CAS-BOT-BC86645  Quercus douglasii H. E. McMinn 1922-10-1 403 Contra Costa Mitchell Canyon, Mt. Diablo Comment
  CAS-BOT-BC86647  Quercus douglasii L. R. Abrams 1910-10-8 4347 Contra Costa Mt. Diablo 762 Comment
  JEPS37385  Quercus douglasii W. L. Jepson 1898-10-18 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC86123  Quercus dumosa Mary L. Bowerman 1932-9-17 1584 Contra Costa Mount Diablo. Donner Canyon, west fork: Bank between forks 304 Comment
  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
  UCD17418  Quercus garryana E. Dean; M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 654 Contra Costa California. Contra Costa County: Mount Diablo State park, Fossil Ridge, just upslope of South Gate Rd., just west of Gibraltar Rock, southeast of Rock City. 487 Comment
  JEPS99999  Quercus kelloggii S. O'Neil 2003-3-11 SEO 11 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1543002  Quercus kelloggii Donald G. Nelson 1938-11-6 590 Contra Costa midway between Lafayette and Moraga Estates (along main highway) Comment
  UCSC008851  Quercus kelloggii Al Keuter 2014-5-23 AK 00 -094 Contra Costa Along Wildcat Canyon Road on the northeast side of the first range of hills behind Berkeley. 166 Comment
  SEINET12034573  Quercus kelloggii M. T. Doutt 1930-1 83 Contra Costa Marsh Creek Comment
  JEPS37352  Quercus lobata W. L. Jepson 1916-10-22 6852 Contra Costa Las Trampas Ridge Comment
  JEPS99998  Quercus lobata G. Smick 2003-2-18 GAS 64 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1135713  Quercus lobata R. W. Lundh 1932-9-1 154 Contra Costa 1 mi n Eagle Point; Mt. Diablo Quad. 228 Comment
  UCD47073  Quercus palmeri J. M. Tucker 1981-5-31 4459 Contra Costa California, Contra Costa County: Antonio Souza Ranch southwest of Byron (extended Section NW quarter Sec. 31, R3E, T1S, Mt. Diablo Meridian). 309 Comment
  UCD47102  Quercus palmeri J. M. Tucker 1981-4-25 4453 I Contra Costa California, Contra Costa County: Antonio Souza Ranch southwest of Byron (extended section NW quarter Sec. 31, R3E, T1S, Mt. Diablo Meridian). 309 Comment
  CAS-BOT-BC104707  Quercus wislizeni John Thomas Howell 1950-6-5 26637 Contra Costa Nortonville Comment
  CAS-BOT-BC104710  Quercus wislizeni Mary L. Bowerman 1930-7-7 287 Contra Costa Mount Diablo. Summit Comment
  UC1543000  Quercus wislizeni Donald G. Nelson 1938-11-6 586 Contra Costa about 1 mi beyond Marsh Creek Springs (road cut in Marsh Creek Highway, ne of Mt. Diablo) Comment
  UC691291  Quercus wislizeni Mary L. Bowerman 1933-5-9 2052 Contra Costa Mountain House Canyon, n face Mount Diablo 670 Comment
  CAS-BOT-BC104712  Quercus wislizeni Alice Eastwood 1921-8-6 11043 Contra Costa Mt. Hamilton Comment
  CAS-BOT-BC104718  Quercus wislizeni D. C. Barclay 1919-5-10 s.n. Contra Costa from the hill above Redwood Inn, Moraga Valley Comment
  UC691290  Quercus wislizeni var. frutescens Mary L. Bowerman 1931-4-25 777 Contra Costa Mount Diablo Comment
  CDA22082  Quercus wislizeni var. wislizeni D. G. Kelch 2004-3-13 4 .04 Contra Costa Mt Diablo Region.; Road cut along Marsh Creek Rd about 1.5 miles W of Deer Valley Rd. Comment
  UC691453  Rafinesquia californica Mary L. Bowerman 1933-4-26 1910 Contra Costa n peak ridge e-se of peak Mount Diablo; n peak ridge e-se of peak of Mount Diablo 609 Comment
  CAS-BOT-BC362442  Rafinesquia californica Mary L. Bowerman 1931-4-25 764 Contra Costa Mount Diablo. Meridian Peak ca. 3 miles by road from summit Comment
  UC9372  Ranunculus aquatilis Harley P. Chandler 1901-4-5 973 Contra Costa Mt. 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
  UC2027730  Ranunculus canus Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15505 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  UC118266  Ranunculus canus var. canus T. S. Brandegee May 1889 Contra Costa Antioch Comment
  UC692171  Ranunculus canus var. canus Mary L. Bowerman 1932-3-23 1127 Contra Costa East of Donner Creek; Mount Diablo Comment
  UC692125  Ranunculus hebecarpus Mary L. Bowerman 1932-3-23 1130 Contra Costa ridge e Donner Canyon (at saddle); Mount Diablo 274 Comment
  UC692126  Ranunculus hebecarpus Mary L. Bowerman 1933-4-9 1832 Contra Costa Donner Canyon Mount Diablo (w fork, by stream (where large fork to e)) 243 Comment
  UC634972  Ranunculus hebecarpus H. L. Mason 1929-3-29 5126 Contra Costa two mi above Clayton (Marsh Creek Road) Comment
  JEPS112941  Ranunculus lobbii Dean W. Taylor 2001-3-16 17610 Contra Costa eastern flank Mt. Diablo, Mount Diablo State Park, along Olympic Trail (fire road) about 0.25 road miles W from Marsh Creek Road (ca. 5 air miles South from Clayton) 298 Comment
  JEPS112057  Ranunculus muricatus D. G. Kelch 2004-4-24 04 .96 Contra Costa Ca ada del Cierbo Upper Ca ada de Cierbo on fire road to cow barn along Cummings Skyway 70 Comment
  JEPS54990  Ranunculus muricatus W. L. Jepson 1918-6-5 7593 Contra Costa Donner Canyon Mt. Diablo Comment
  JEPS99975  Ranunculus muricatus G. Smick 2003-4-29 GAS 147 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC692127  Ranunculus muricatus Mary L. Bowerman 1933-4-15 1844 Contra Costa canyon s Arroyo del Cerro (in or bordering stream); Mount Diablo Comment
  UC692200  Ranunculus muricatus Mary L. Bowerman 1938-5-25 3629 Contra Costa by North Road (on edge of stream); Mount Diablo, Arroyo del Cerro Comment
  SD48397  Ranunculus occidentalis G. R. Campbell 1956-4-6 17 Contra Costa Between Round Top and summit of Mt. Diablo 305 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
  RSA721368  Ranunculus sceleratus Barbara J. Ertter 1995-7-11 14485 Contra Costa W side of Mt. Diablo SW of Walnut Creek, dense growth at lower end of Pine Pond. 183 Comment
  UC1093860  Ranunculus sceleratus Herbert L. Mason 1937-6-21 11547 Contra Costa 0.5 mi from south end of Borden Highway (about 1.5 mi w of Byron) Comment
  UC650429  Raphanus sativus Ira L. Wiggins 1930-4-18 4610 Contra Costa Jersey Island Comment
  JEPS112063  Reseda alba D. G. Kelch 2004-4-11 04 .76 Contra Costa Crockett - Crolona Heights Hillside above Rolf Drive. Lower Crolona heights. 15 Comment
  UC692596  Rhamnus californica Mary L. Bowerman 1932-11-26 1677 Contra Costa Pepperwood Springs (by w road not far from junction of roads) Mount Diablo Comment
  SEINET13946276 Image available Rhamnus californica Charles M. Belshaw 1425 Contra Costa Sierra Nevada, Las Trampas Ridge; 400 ft alt. 122 Comment
  JEPS41992  Rhamnus californica subsp. californica W. L. Jepson 1895-9-7 13977 Contra Costa Grizzly Peak Berkeley Hills Comment
  JEPS41994  Rhamnus californica subsp. californica W. L. Jepson 1899-10-7 13975 Contra Costa near Bald Peak (s Contra Costa County); Berkeley Comment
  JEPS42029  Rhamnus californica subsp. californica W. L. Jepson 1924-6-25 10600 Contra Costa Moraga Ridge Comment
  JEPS112065  Rhamnus crocea A. G. Murdock 2004-5-28 290 Contra Costa Pinole Peak 405 Comment
  CAS-BOT-BC59893  Rhamnus ilicifolia A. D. E. Elmer 1903-5-1 4326 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
  UC692594  Rhamnus tomentella subsp. tomentella Mary L. Bowerman 1932-11-19 1657 Contra Costa Lower Grapevine Spring, at head of spring Mount Diablo Comment
  JEPS77004 Image available Ribes amarum Robert M. Lloyd 1963-3-17 2133 Contra Costa 0.5 mi e Grizzly Peak Road (on Skyline Drive (across from 7090 Skyline Drive), Huckleberry trail); Huckleberry trail Comment
  UC2031402  Ribes amarum Barbara Ertter with David Gowen and Steve Matson 2007-3-17 18788 Contra Costa Huckleberry Botanic Regional Preserve in East Bay Hills above Montclair, dog-leg of Skyline Regional Trail at junction with trail from Pinehurst Road at base of canyon of upper San Leandro Creek Comment
  JEPS75496  Ribes californicum P. F. York 1974-2-3 107 Contra Costa 1.4 km. s Bear Creek Road (on Hampton Road, N of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  CDA25524  Ribes californicum var. californicum D. G. Kelch, A. G. Murdock 2003-2-7 3 .036 Contra Costa Carquinez Strait Region; Franklin Canyon. Comment
  UC11524  Ribes divaricatum var. pubiflorum J. Burtt Davy 1895-4-13 997 Contra Costa near Lafayette Comment
  UC1127445  Ribes menziesii H. S. Yates 1936-3-14 5364 Contra Costa 2 1/2 mi sw Round Valley; Mt. Diablo Quadrangle 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
  JEPS77002 Image available Ribes sanguineum var. glutinosum Robert M. Lloyd 1963-3-17 2132 Contra Costa 0.5 mi e Grizzly Peak Road (on Skyline Drive (across from 7090 Skyline Drive), Huckleberry trail); Huckleberry trail Comment
  UC1177378  Ribes sanguineum var. glutinosum Peter H. Raven 1950-3-5 1397 Contra Costa upper trail Redwood Canyon 243 Comment
Read comments
Aug 9 2011
  SBBG98261  Ribes sanguineum var. glutinosum J. A. Ewan 1934-3-10 8650 Contra Costa Wildcat Cyn, 1.5 mi below Orinda Rd bridge Comment
  CAS-BOT-BC362962  Rigiopappus leptocladus Mary L. Bowerman 1931-4-4 669 Contra Costa Mount Diablo. West of Turtle Rock Comment
  UC1795706  Rigiopappus leptocladus Barbara Ertter, Susan D'Alcamo 1994-4-24 12463 Contra Costa Mount Diablo east Walnut Creek, Bald Ridge Trail above Murchio Gap 762 Comment
  JEPS100113  Robinia pseudoacacia A. Langston 2003-8-26 AL 83 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC24540  Romanzoffia californica H. N. Bolander 1866-1 6280 Contra Costa Mt. Diablo Comment
  UC1050828  Romneya coulteri N. Floy Bracelin 1941-6-1 1344 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  SD62209  Romneya trichocalyx Helen Beard 1965-1-20 Contra Costa From L.L. Edmunds Native Plant Nursery, Danville, Contra Costa County, California. Original place of collection not known. University of California Botanical Garden 50.1640. Comment
  CAS-BOT-BC74412  Rorippa curvisiliqua W. W. Carruth 1902-4-29 s.n. Contra Costa Mount Diablo. Comment
  CAS-BOT-BC147408  Rosa californica L. R. Abrams 1916-6-30 5710 Contra Costa Mt. Diablo Comment
  UCD113415  Rosa californica John Thomas Howell; Gordon H. True 1972-6-29 48930 Contra Costa Byron Hot Springs Road, SE of Byron. Comment
  SEINET10957118  Rosa sempervirens D. Gowen 2007-5-31 Gowen 695 Contra Costa Carquinez Regional Park. NW Contra Costa County, near Crockett, W of jct. San Pablo Ave. and Rio Del Vista. 30 Comment
  JEPS99578  Rumex conglomeratus Mary Bowerman 1995-6-4 Contra Costa Mount Diablo, Pine Pond Comment
  CAS-BOT-BC421625  Rumex crispus Ira L. Wiggins 1930-4-18 4605 Contra Costa Jersey Island Comment
  CAS-BOT-BC421626  Rumex crispus R. E. Frenkel 1963-12-4 310 Contra Costa On California Hwy. 21, Market Plaza Center, Alamo 79 Comment
  CAS-BOT-BC433710  Rumex occidentalis Walter Knight; Joanne Dean 1978-8-14 3138 Contra Costa Browns Island. Comment
  JEPS25160  Rumex pulcher G. Thomas Robbins with John Weiler 1959-5-23 4032 Contra Costa about 0.5 mi e Pt. San Pablo (overlooking San Pablo Bay); Richmond 7 Comment
  JEPS41049  Rumex salicifolius var. salicifolius Rimo Bacigalupi, and L. R. Heckard 1965-5-11 9074 Contra Costa sw of Richmond (w side of Brooks Island); San Francisco Bay, Brooks Island 6 Comment
  JEPS121055  Rupertia physodes Dean G. Kelch and Andrew G. Murdock 2004-5-9 042 .12 Contra Costa Crockett - Bull Valley Comment
  UC2070472  Rupertia physodes Barbara Ertter 2002-5-11 17842 Contra Costa Southwest base of Mount Diablo, lower Emmons Canyon Road. Comment
  CAS-BOT-BC454141  Ruppia maritima J. W. Congdon 1889-6-20 10 Contra Costa Byron Springs Comment
  JEPS120280  Rytidosperma racemosum Barbara Ertter with David Gowen 2012-6-9 21017 Contra Costa lower Vollmer Peak Trail paralleling South Drive, southeastern Tilden Park in Berkeley Hills Comment
  CDA23066  Sagina apetala D. G. Kelch, D. A. Weinstein 2008-5-5 8 .094 Contra Costa Carquinez Strait; Richmond. W Chevy s Hill. N parking lot of Hilltop Mall. Comment
  SEINET10946617 Image available Sairocarpus elmeri Adolph D. E. Elmer Elmer 4809 Contra Costa Comment
  UC725834  Salix gooddingii A. A. Heller 1908-4-16 8886 Contra Costa Antioch 12 Comment
  CAS-BOT-BC104086  Salix hindsiana Mary L. Bowerman 1935-5-30 3080 Contra Costa By Donner Canyon stream 152 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
  UC651296  Salix laevigata Ira L. Wiggins 1930-4-18 4603 Contra Costa levee banks Jersey Isl. Comment
  RSA0030832  Salix laevigata Walter C. Blasdale 1896-2-29 s.n. Contra Costa Clayton. Comment
  CAS-BOT-BC125142  Salix lasiandra var. lasiandra W. W. Mott 1905-3-11 s.n. Contra Costa unspecified Comment
  JEPS112248  Salix lasiolepis A. G. Murdock 2004-2-12 208 Contra Costa Franklin Canyon; Along Franklin Canypn east of McHarry Ranch Road Comment
  UC692062  Salix lasiolepis Mary L. Bowerman 1933-2-23 1721 Contra Costa Donner Canyon Mount Diablo (w fork toward mouth, by streambed) Comment
  CAS-BOT-BC129551  Salix lasiolepis var. lasiolepis Alice Eastwood 1914-2-24 3729 Contra Costa Antioch Comment
  CAS-BOT-BC129598  Salix lasiolepis var. lasiolepis Mary L. Bowerman 1932-11-19 1650 Contra Costa Pioneer Camp: along stream from the spring - Mount Diablo Comment
  CAS-BOT-BC180753  Salsola tragus Walter Knight; Joanne Dean 1978-8-14 3114 Contra Costa Browns Island Comment
  JEPS62662  Salvia columbariae Mrs. E. L. Mossman 1931-4-21 149 Contra Costa Grizzly Peak; Berkeley Hills 487 Comment
  UCD102380  Salvia columbariae Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 1050 Comment
  POM223332  Salvia columbariae L. S. Rose 1935-5-16 s.n. Contra Costa Mt. Diablo. Comment
  HSC101955  Salvia mellifera Nikolaus Gillen, Michlle Bihler 2014-3-20 7 Contra Costa Mount Diablo State Park. Back Creek Trail. 340 Comment
  POM71109  Salvia mellifera H. P. Chandler 1901-4-5 976 Contra Costa Mt. Diablo Comment
  UC63772  Salvia mellifera H. M. Hall 1901-4-4 1751 Contra Costa Mt. Diablo; San Francisco Bay Region 670 Comment
  PASA488  Salvia mellifera Annetta Carter 1929-3-31 Contra Costa Near Clayton, Foothill north of Mt. Diablo Comment
  RSA434141  Salvia mellifera August Hartman 1960-4-19 s.n. Contra Costa South Gate Road, Mt. Diablo 305 Comment
  UC1051310  Sambucus caerulea N. Floy Bracelin 1941-6-22 1419 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS75505  Sambucus mexicana P. F. Yorks 1975-5-3 422 Contra Costa on Hampton Rd. ca 1.7 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  UC570378  Sambucus mexicana Chas. M. Belshaw 1936-2-16 1593 Contra Costa 2 1/2 mi nne Orinda; Sobrante and Briones Hills, Briones Valley Comment
  UC1191697  Samolus parviflorus Malcolm A. Nobs, S. Galen Smith 1949-7-8 948 Contra Costa 4 mi n of Kingston (Otto's Black Bass Resort); Otto's Black Bass Resort Comment
  CAS-BOT-BC223246  Sanicula bipinnata Brandegee No date on label s.n. Contra Costa Antioch Comment
  CAS-BOT-BC223245  Sanicula bipinnata Alice Eastwood 1914-3-14 5792 Contra Costa Byron Springs Comment
  UCSB39463  Sanicula bipinnata Fritzke, Sue 1980-3-29 Contra Costa 0.5 miles from the E end of Ball Rd. in the Shell Ridge Open Space Area, SE of the rock quarry 124 Comment
  UC1561208  Sanicula bipinnatifida Barbara Ertter with John Little 1989-4-2 8108 Contra Costa El Cerrito, at s end of Hillside Park Hillside Park; El Cerrito, Hillside Park Comment
  PASA1823  Sanicula bipinnatifida Annetta Carter 1929-3-31 Contra Costa Near Clayton. Hills north of Mt. Diablo Comment
  RSA471438  Sanicula bipinnatifida Joseph A. Ewan 1936-4-19 9464 Contra Costa W. slope of Wildcan Canyon Comment
  UC1555367  Sanicula crassicaulis Jerry Powell 1988-4-8 1527 Contra Costa west Richmond, Point Molate Point Molate; Richmond, Point Molate Comment
  UC2032846  Sanicula crassicaulis Doran, Andrew Scott 2012-3-20 717 Contra Costa Southern part of Brooks Island, old quarry near gravel conveyer belt and grind house. Comment
  UC566856  Sanicula crassicaulis H. L. Mason 1928-4-13 4305 Contra Costa Richmond Waterfront Comment
  UC1949241  Sanicula saxatilis Barbara Ertter with Brad Olson, Lynne Hosley, et al. 1991-4-7 9728 Contra Costa Eagle peak on Mount Diablo; slopes on E and SW side Comment
  UCD151158  Schedonorus arundinaceus James A. Neilson Jr. 1972-11-2 3552 Contra Costa Walnut Creek drainage at State Highway 4. Elevation estimated using Google Earth by label maker. 1 Comment
  UC2028426  Schoenoplectus americanus Barbara Ertter 1996-9-19 15294 Contra Costa Antioch Marina Comment
  CAS-BOT-BC111484  Schoenoplectus americanus Barrett Anderson 1987-7-23 3561 Contra Costa Building site on San Pablo Road at Gerrity Creek, Pinole. 45 Comment
  POM181474  Schoenoplectus californicus I. L. Wiggins 1930-4-18 4592 Contra Costa Jersey Island. Comment
  CAS-BOT-BC111830  Schoenoplectus tabernaemontani Virginia I. Dains; Walter Knight 1986-8-8 5458 Contra Costa Lct Rock S1 & Werner Cut. Comment
  UC692181  Scirpus acutus var. occidentalis Mary L. Bowerman 1938-9-17 3715 Contra Costa by the rivulet and in the marsh Big Spring Mount Diablo, Big Spring 731 Comment
  CDA15267  Scirpus americanus G. F. Hrusa, D. Crowe 1998-5-8 14398 Contra Costa Sacramento Delta; E end of Dow Chemical property in Pittsburg. Comment
  JEPS111882  Scirpus americanus A. G. Murdock 2004-6-4 323 Contra Costa Pacheco Marsh 5 Comment
  CDA15265  Scirpus californicus G. F. Hrusa, D. Crowe 1998-5-8 14396 Contra Costa Sacramento Delta; E end of Dow Chemical property in Pittsburg. Comment
  CDA39116  Scirpus californicus D. G. Kelch 2004-6-6 4 .229 Contra Costa Carquinez Strait Region; Downtown Martinez. Alhambra Creek near bay and railroad station. 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
  SEINET3914283  Scirpus californicus K. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4955 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough, SE portion of Bethel Slough.; 0 610 Comment
  UCD50099  Scirpus californicus B. Crampton 1950-7-29 625 Contra Costa 1 mile north of Richmond, Contra Costa Co. Comment
  JEPS111880  Scirpus koilolepis A. G. Murdock 2004-4-30 252 Contra Costa McEwen Road West side of road 130 Comment
  CDA15264  Scirpus maritimus G. F. Hrusa, D. Crowe 1998-5-8 14395 Contra Costa Sacramento Delta; E end of Dow Chemical property in Pittsburg. Comment
  UC971682  Scirpus maritimus Leo Koch 1940-6-5 1004 a Contra Costa near highway saline flat two mi s San Rafael ferry dock; s of San Rafael ferry dock Comment
Read comments
Apr 14 2009
  JEPS111898  Scirpus microcarpus D. G. Kelch 2004-7-9 04 .308 Contra Costa Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite. 60 Comment
  UC692092  Scirpus microcarpus Mary L. Bowerman 1938-9-17 3716 Contra Costa Big Spring , Big Spring (Mount Diablo) Comment
  PASA1037  Scrophularia californica Annetta Carter 1929-3-31 Contra Costa Near Clayton. Hills north of Mt. Diablo 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
  UC723846  Scutellaria tuberosa Joseph Andorfer Ewan 1934-4-8 8767 Contra Costa head of Arroyo Cayetaus (Mount Diablo); , Arroyo Cayetaus 609 Comment
  UC2029119  Scutellaria tuberosa Barbara Ertter with Dan Norris 2001-4-8 17585 Contra Costa Lime Ridge Open Space east of Walnut Creek. Comment
  JEPS99566  Sedum radiatum Mary Bowerman 1975-6-1 Contra Costa Mount Diablo, (probably along Falls Trail). Comment
  UC195562  Senecio aphanactis E. L. Greene 1888-3-25 Contra Costa Byron Comment
  CAS-BOT-BC363289  Senecio aronicoides Alice Eastwood 1915-5-30 4535 Contra Costa Mt. Diablo Comment
  JEPS111534  Senecio glomeratus D. G. Kelch 2005-5-5 05 .218 Contra Costa Point Pinole - Giant Marsh Giant Salt Marsh 3 Comment
  CDA18812  Senecio mikanioides R. M. Case 1999-12-2 PDR 1219291 Contra Costa Along Wildcat Canyon Rd., 1.9 mi NW of intersection of Wildcat Canyon Rd. and Dam Rd., vicinity of Orinda. 0 Comment
  CDA7666  Senecio sylvaticus D. G. Kelch, A. G. Murdock 2005-5-13 5 .274 Contra Costa Carquinez Strait Region; Martinez - West: Ozol Rock and Scenic Drive. Comment
  JEPS48275  Sequoia sempervirens W. L. Jepson 1919-1-25 8208 Contra Costa Upper San Leandro Creek by Moraga Ridge Upper San Leandro Creek, Moraga Ridge Comment
  NY64512  Sequoia sempervirens L. S. Rose 1934-1-29 34009 Contra Costa Redwood Canyon Comment
  SEINET3876340 Image available Sequoia sempervirens Dusty Mengshol 1963-3-1 13 Contra Costa 923 Mtn. View Drive, Lafayette.; 0 46 Comment
  SEINET3876354 Image available Sequoia sempervirens Judy Kaufman 1963-2-15 9 Contra Costa On slopes of Flicker Ridge.; 0 122 Comment
  CDA37437  Sesbania punicea D. G. Kelch, Mike Perlmutter 2011-9-23 11 .764 Contra Costa Antioch. Dow Wetlands. Comment
  CDA23918  Sesuvium verrucosum D. G. Kelch 2006-7-14 6 .329 Contra Costa Carquinez Strait; Along Marine Vista Ave immmediately west of Pacheco Slough. East of Martinez. Comment
  UCR6068  Sidalcea malviflora Charles Prentiss 1966-4-5 07 Contra Costa San Francisco Bay Region, Tilden Park at Indian Camp, E facing slope across from tennis courts 168 Comment
  UC2032814 Image available Sidalcea malviflora subsp. laciniata Doran, Andrew Scott 2012-3-20 684 Contra Costa North end of Brooks Island along ridge, cleared area northwest of caretakers residence. Comment
  CDA31177  Silene gallica D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .219 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  JEPS100172  Silybum marianum G. Smick 2003-5-15 GAS 193 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC691376  Silybum marianum Mary L. Bowerman 1930-6-3 233 Contra Costa West Road 1.9 mi from entrance Mount Diablo (= North Road); Mount Diablo Comment
  UCR16901  Silybum marianum M. Wexler 1973-5-22 s.n. Contra Costa El Sobrante, across the street from the intersection of Jo-lin Ct. and Valley View Rd. 45 Comment
  UC691084  Sinapis arvensis Mary L. Bowerman 1938-5-25 3634 Contra Costa North Road 2 mi from North Gate (Mount Diablo); , North Road 182 Comment
  UC691260  Sinapis arvensis Mary L. Bowerman 1932-3-6 1106 Contra Costa immediately n of Blackhawk Ranch (Mount Diablo, Sycamore Canyon); Mount Diablo, Sycamore Canyon Comment
  JEPS100078  Sisymbrium officinale G. Smick 2003-5-30 GAS 207 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS100079  Sisymbrium officinale A. Langston 2003-6-19 AL 48 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA310841  Sisyrinchium bellum John Weiler 1959-4-5 5937 Contra Costa Along Bear Creek road Comment
  JEPS112505  Smilacina racemosa A. G. Murdock 2004-4-30 245 Contra Costa Vaca Canyon 165 Comment
  JEPS112310  Solanum americanum D. G. Kelch 2004-5-2 04 .163 Contra Costa Crockett - Edwards Canyon Comment
  NY751923  Solanum californicum D. D. Keck 1933-11-2 2619 Contra Costa 1 mi. S.E. of Oakley. Comment
  UC2032802 Image available Solanum furcatum Doran, Andrew Scott 2012-3-20 672 Contra Costa Brooks island loading dock, North side of island. Comment
  JEPS99576  Solanum umbelliferum Mary Bowerman 1975-5-11 Contra Costa Mount Diablo, Back Creek. 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
  UC691749  Solanum umbelliferum Mary L. Bowerman 1930-6-5 258 Contra Costa Mount Diablo, West Road = North Road, 5.8 mi from entrance Mount Diablo 457 Comment
  UC691760  Solanum umbelliferum Mary L. Bowerman 1931-3-7 553 Contra Costa Mount Diablo, Upper end of South Road Mount Diablo; , South Road Comment
  UCD38575  Solanum umbelliferum Beecher Crampton 1956-5-14 3398 Contra Costa Headwaters of Marsh Creek, southeastern of Mt. Diablo. 640 Comment
  CDA22279  Soleirolia soleirolii D. G. Kelch, A. G. Murdock 2005-5-23 5 .377 Contra Costa Carquinez Strait Region; Crockett - Crolona Heights. 6th Street at Lillian Street, Crockett. Comment
  UCD163099  Solidago velutina subsp. californica Robert E. Preston 2014-5-28 2966 Contra Costa Morgan Territory, 3 mi SW of Los Vaqueros Reservoir. 290 Comment
  JEPS25515  Soliva sessilis Robert Owen 1961-5-19 Contra Costa Tilden Regional Park Botanic Garden Comment
  CDA15259  Sonchus asper G. F. Hrusa, D. Crowe 1998-5-8 14390 Contra Costa Sacramento Delta; E end of Dow Chemical property in Pittsburg. Comment
  CDA29496  Sonchus asper D. G. Kelch, Troy MacGregor 2009-5-1 9 .269 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  JEPS75557  Sonchus asper P. F. Yorks 1975-5-15 399 Contra Costa n Briones Reservoir (ca 1.8 km s of Bear Creek Road on Hampton Road); Hampton Road Natural Reserve 190 Comment
  UC691791  Sonchus asper Mary L. Bowerman 1938-5-28 3642 Contra Costa North Road 6.5 mi from North Gate (Mount Diablo on bank by roadside (where Boulevard Spring used to be)); Mount Diablo Comment
  UC691790  Sonchus oleraceus Mary L. Bowerman 1935-4-12 2813 Contra Costa North Road Mount Diablo (Mount Diablo) 198 Comment
  UC1980318  Sparaxis tricolor Barbara Ertter with C. Shafer, C. Davidson et al. 2011-4-23 20707 Contra Costa Mount Diablo State Park, Curry Point Comment
  CDA32680  Spartina foliosa D. G. Kelch 2004-7-9 4 .314 Contra Costa Carquinez Strait Region; Rodeo Shoreline. Comment
  UCD92971  Spartina foliosa A. A. Beetle 1940-11-1 2636 Contra Costa San Francisco Bay, near Point Richmond. Comment
  CAS-BOT-BC236610  Spartina foliosa Richard W. Pohl 1952-9-9 7198 Contra Costa Along San Francisco Bay, El Cerrito Comment
  RSA181840  Spartina patens Rolf Mall 1964-11-19 s.n. Contra Costa Southampton tidal marsh at head of Suisun Bay between Benicia and Vallejo, Contra Costa County Comment
  CDA42411  Spartium junceum D. G. Kelch, Vince Guise 2012-7-26 12 .237 Contra Costa Wildcat Canyon Park, Alvarado Unit. 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
  UC1948951  Spergula arvensis William J. Ferlatte, L. Maynard Moe 1970-4-27 1256 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC1795742  Spergularia bocconi Barbara Ertter, Mary Bowerman et al. 1995-5-7 14027 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, along road thru annual grassland with scattered blue oak south of Marsh Creek Road summit. 304 Comment
  SEINET3840816  Spergularia marina Unknown 2006-7-14 6 .328 Contra Costa East of Martinez, Along Marine Vista avenue immediately west of Pacheco Slough 1 Comment
  UC2070546  Spergularia marina Barbara Ertter with David Gowen and Michael Park 2017-5-2 22811 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road Comment
  RSA0029285  Spergularia marina Barbara Ertter, John Ginochino, Mary Bowerman 2001-5-8 17630 Contra Costa Northwest flank of Mount Diablo, tributary of Galindo Creek on south side of knoll SW of Mount Zion. Comment
  SEINET11268258  Spergularia marina Barbara Ertter 2001-5-8 17630 Contra Costa Northwest flank of Mount Diablo, tributary of Galindo Creek on south side of knoll SW of Mount Zion.; 0 Comment
  UC2027786  Spergularia marina Barbara Ertter with John Ginochio and Mary Bowerman 2001-5-8 17630 Contra Costa Northwest flank of Mount Diablo, tributary of Galindo Creek on south side of knoll SW of Mount Zion. Comment
  JEPS99546  Spergularia rubra Mary Bowerman 1975-4-19 Contra Costa Mount Diablo, Mitchell Canyon. 256 Comment
  CDA39223  Sporobolus indicus C. deNijs 2013-8-6 PDR# 070 P06137809 Contra Costa Vicinity of Knightsen. 0 Comment
  JEPS112464  Stachys ajugoides var. rigida D. G. Kelch 2003-4-3 03 .364 Contra Costa Cummings Skyway 115 Comment
  UC25936  Stachys ajugoides var. rigida W. L. Jepson Contra Costa Fish Ranch Comment
  JEPS112477  Stachys pycnantha D. G. Kelch 2004-7-9 04 .303 Contra Costa McEwen Road McEwen marsh. McEwen Road North of Cummings Skyway Contra Costa County CA 130 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
  UC2028208  Stebbinsoseris heterocarpa Barbara Ertter 1998-5-3 16076 Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, near Wall Point. Comment
  UC1607662  Stellaria nitens Barbara Ertter with Michelle Seidl 1992-3-14 10917 Contra Costa e of Mount Diablo (Morgan Territory Regional Preserve); Morgan Territory Regional Preserve Comment
  RSA0027412  Stenotaphrum secundatum Barbara Ertter, Richard K. Rabeler, Tony Morosco 1997-6-10 15669 Contra Costa Martinez Regional Shoreline, south edge of Carquinez Strait. On path to bridge. Comment
  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
  RSA39905  Stephanomeria virgata P. A. Munz 1947-10-8 12206 Contra Costa Antioch 8 Comment
  SEINET7883496 Image available Stephanomeria virgata Lewis S. Rose 1938-1 38308 Contra Costa Marsh Creek, 6 mi. e. of Clayton 152 Comment
  UC2029082  Stephanomeria virgata subsp. pleurocarpa Barbara Ertter 2000-7-29 17439 Contra Costa Donner Basin on north side of Mount Diablo, opening on lower end of Middle Trail between Meridian Ridge Road and first stream crossing. Comment
  UC2070623  Stipa lepida Barbara Ertter 2002-5-11 17847 b Contra Costa Southwest base of Mount Diablo, lower end of Summit Trail in Dan Cook Canyon ca. half mile from South Gate Road. Comment
  JEPS124451  Streptanthus albidus subsp. peramoenus Daniel Slakey with Diana Wahl 2015-6-13 129 Contra Costa Mt. Diablo State Park. Both above and below Burma Road; southwest-facing bank above fire trail. Comment
  SEINET3149300  Streptanthus glandulosus M. S. Baker 1904-6-24 sn Contra Costa Mt. Diablo, halfway to Summit Comment
  CAS-BOT-BC87342  Streptanthus hispidus Alice Eastwood 1921-6-11 10603 Contra Costa Mount Diablo near summit. Comment
  UC1516892  Streptanthus hispidus W. H. Brewer 1862-5-14 1084 Contra Costa Mt. Diablo summit; Mt. Diablo; Mt. Diablo, Contra Costa Co. Comment
  UC402744  Streptanthus hispidus E. W. Hicks 1917-3-25 114 Contra Costa s-facing slope of w shoulder Mt. Diablo 762 Comment
  SD175848  Stuckenia pectinata D. G. Kelch 2006-9-11 06 471 Contra Costa Crockett Hills East Bay Regional Park. Near old barn and parking lot. 60 Comment
  RSA0027710  Stuckenia pectinata Barbara Ertter, Chris Thayer 1996-10-25 15371 Contra Costa Northwest flank of Mount Diablo. Tick Pond at arc of Falcon Road between North Gate Road and Castle Rock. 183 Comment
  JEPS75654  Stylomecon heterophylla W. L. Jepson 1925-4-26 10683 Contra Costa Black Hills Mt. Diablo; , Black Hills Comment
  UC1746042  Suaeda moquinii Annetta M. Carter 1951-5-13 3056 Contra Costa 3.3 mi. S of Byron. Comment
  CAS-BOT-BC269564  Symphoricarpos albus var. laevigatus L. R. Abrams 1916-6-30 5720 Contra Costa Mt. Diablo near lake Comment
  UC1818868  Symphyotrichum chilense Barbara Ertter, Lisa Schultheis, Laura Fujii 1995-12-30 14543 Contra Costa Mount Diablo, road to Black Hawk Ridge, north-facing clay slope covered 487 Comment
  CAS-BOT-BC98040  Symphyotrichum lentum John Thomas Howell 1978-9-5 53357 Contra Costa Pittsburg Marina Comment
  UCD136614  Symphyotrichum lentum Ann F. Johnson 1978-6-25 AN- 33 Contra Costa Edge of the San Joaquin River at the Antioch Dunes on Pacific Gas and Electric Co. site. Comment
  JEPS111672  Symphyotrichum subspicatum D. G. Kelch 2003-6-22 03 .92 Contra Costa Selby At start of trail on south side in grassland 40 Comment
  CAS-BOT-BC99396  Symphyotrichum subulatum var. parviflorum W. L. Jepson 1891-9-16 s.n. Contra Costa at New Town landing, Lower Sacramento River Comment
  UC1607567  Tamarix parviflora Barbara Ertter 1993-4-2 11480 Contra Costa west of Crockett (below Vista Road, abandoned railroad station); Carquinez Regional Park Comment
  CHSC75158  Tanacetum parthenium Roger Thom 1987-5-24 14 Contra Costa 3354 Johnson Rd., Lafayette. 167 Comment
  UC21431  Tauschia hartwegii Jos. Burtt Davy 1901-4-21 7045 Contra Costa Wildcat Canyon Comment
  JEPS22095  Tetragonia tetragonoides G. Thomas Robbins 1958-7-19 3906 Contra Costa about 3/4 mi s of Point San Pablo (Point Orient, Potrero San Pablo, Richmond); San Francisco Bay, Point Orient, Potrero San Pablo Comment
  CAS-BOT-BC88262  Thysanocarpus curvipes Mrs. E. C. Wright 1917-6-1 s.n. Contra Costa Mount Diablo. Comment
  SBBG29915  Thysanocarpus curvipes L. S. Rose 1933-4-17 33096 Contra Costa Antioch Comment
  CAS-BOT-BC88263  Thysanocarpus curvipes J. G. Lemmon April s.n. Contra Costa Mount Diablo and northward. Comment
  JEPS54189  Thysanocarpus curvipes Linda Gehringer 1914-3 Contra Costa Brentwood; Sect. 21 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
  SEINET10904232  Thysanocarpus curvipes var. elegans John T. Middleton 1936-4-18 Middleton 141 Contra Costa Briones valley. Comment
  CDA33815  Tonella tenella D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .112 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 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
  CAS-BOT-BC172933  Toxicodendron diversilobum D. E. Breedlove 1970-4-18 17442 Contra Costa At the north edge of Lafayette above Laurel Drive 243 Comment
  RSA610776  Toxicodendron diversilobum Joseph A. Ewan 1936-7-5 9738 Contra Costa Wildcat Creek Comment
  UC606762  Toxicodendron diversilobum Edward Lee 1936-4-19 2014 Contra Costa bluffs along n.e. shore of Red Rock Isl.; San Francisco Bay, Red Rock Isl. Comment
  JEPS107101  Tragopogon porrifolius Barbara Ertter 1991-5-12 9812 Contra Costa Point Isabel Regional Shoreline in SW corner of El Cerrito; along old railroad right-of-way between San Francisco Bay and Salicornia marsh. 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
  UC615564  Trichostema lanceolatum Beryl O. Schreiber 1933-10-5 939 Contra Costa road to Mount Diablo Comment
  JEPS112044  Trientalis latifolia A. G. Murdock 2004-4-30 264 Contra Costa Vaca Canyon 165 Comment
  UCD38574  Trifolium albopurpureum Beecher Crampton 1956-5-14 3399 Contra Costa Headwaters of Marsh Creek, southeast of Mt. Diablo. 640 Comment
  JEPS65688  Trifolium albopurpureum var. albopurpureum W. L. Jepson 1917-4-14 6860 Contra Costa Oakland Hills Comment
Read comments
Dec 17 2008
  UC16500  Trifolium albopurpureum var. dichotomum W. H. Brewer 1862-5-16 1114 Contra Costa n Kirker's Pass Comment
  UCR263556  Trifolium albopurpureum var. dichotomum Barbara Ertter, R. K. Brummitt 1998-5-13 16131 Contra Costa San Francisco Bay Region, Summit Road on Mount Diablo, above Juniper Camp 905 Comment
  UC148550  Trifolium albopurpureum var. olivaceum Katharine Brandegee 1909-4-24 Contra Costa Antioch Comment
  UC33320  Trifolium barbigerum W. C. Blasdale June 1891 Contra Costa near Redwood Peak Comment
  CDA29497  Trifolium bifidum D. G. Kelch, Troy MacGregor 2009-5-1 9 .273 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  UC2070462  Trifolium bifidum var. bifidum Barbara Ertter 2000-5-14 16998 a Contra Costa Lower Donner Canyon on north side of Mount Diablo. Comment
  JEPS107019  Trifolium bifidum var. decipiens J. Greenhouse with Kevin Hintsa 2004-4-5 5090 Contra Costa Mt. Diablo, lower summit parking area 1124 Comment
  SBBG29986  Trifolium bifidum var. decipiens J. T. Howell 1933-5-14 11264 Contra Costa hills E of St Mary's College Comment
  UC555601  Trifolium bifidum var. decipiens H. L. Mason 1929-4-25 5205 Contra Costa Marsh Creek Rd Comment
  POM300697  Trifolium bifidum var. decipiens Mary L. Bowerman 681 Contra Costa South of Russelman Parak. 381 Comment
  UC2027805  Trifolium bifidum var. decipiens Barbara Ertter with Holly Forbes 1997-4-20 15551 Contra Costa North base of Mount Diablo, roadside on trail to Back Creek from Mitchell Canyon trailhead. Comment
  UC2028209  Trifolium bifidum var. decipiens Barbara Ertter 1998-5-3 16072 Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, near Wall Point. Comment
  UC400158  Trifolium ciliolatum Ynes Mexia 1929-4-21 2373 Contra Costa Moraga Valley Comment
Read comments
Aug 31 2007
  UC692256  Trifolium ciliolatum Mary L. Bowerman 1933-5-2 1939 Contra Costa below Pioneer Camp; Mount Diablo 762 Comment
  UC147172  Trifolium depauperatum var. amplectens J. Burtt Davy Apr 7-8 1895 967 Contra Costa Antioch Comment
  UC631084  Trifolium depauperatum var. amplectens Mrs. K. Brandegee 1907-5-8 Contra Costa Antioch Region Comment
  UC2028951  Trifolium depauperatum var. amplectens Barbara Ertter 2003-3-28 18121 Contra Costa Round Valley Regional Preserve, Fox Trail ca 1/8 mile west of junction with valley trail. Comment
  UC630935  Trifolium depauperatum var. depauperatum P. B. Kennedy 1928-4-19 10049 a Contra Costa Byron Hot Springs, near [golf links] Byron Hot Springs Comment
  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
  UC555354  Trifolium depauperatum var. truncatum H. L. Mason 1929-4-25 5208 Contra Costa Marsh Creek Rd Comment
  UC80338  Trifolium depauperatum var. truncatum C. F. Baker 1903-4-27 2863 Contra Costa Byron Comment
  UC2028081  Trifolium depauperatum var. truncatum Barbara Ertter, Tony Morosco 1998-4-12 15988 Contra Costa Base of Mount Olympia on north side of Mount Diablo, open flat below quarry NE of Olympia Trail. Comment
  RSA0027401  Trifolium fragiferum Barbara Ertter 1999-7-17 16764 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, Wildcat Creek Trail between Rifle Range Road and boundary with Tilden Regional Park. Comment
  UC16513  Trifolium fucatum W. H. Brewer 1862-5-5 1045 Contra Costa Camp 69 Walnut Creek Comment
  UC16534  Trifolium fucatum W. H. Brewer 1862-4-30 1006 Contra Costa Camp 69 Walnut Creek Comment
  UC400160  Trifolium fucatum Ynes Mexia 1929-4-21 2371 Contra Costa Moraga Valley Comment
  UCD109022  Trifolium fucatum P. B. Kennedy 1929-4-21 10229 Contra Costa Franklin Canyon Road from Concord Soldier's Monument. Comment
  CDA29533  Trifolium glomeratum D. G. Kelch, Troy MacGregor 2009-5-1 9 .287 Contra Costa Carquinez Strait; Fernandez Ranch in valley bottom along Christie Rd. Comment
  JEPS125941  Trifolium glomeratum D. W. Taylor 2001-4-26 17628 Contra Costa Orinda; hill slopes ca 0.3 air miles E of the junction of Bear Creek Road and Camino Pablo Comment
  JEPS127042  Trifolium glomeratum Lowell Ahart, Josephine Guardino 2016-4-19 20758 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
  UC148551  Trifolium gracilentum Katharine Brandegee 1909-4-24 Contra Costa Antioch Comment
  UC16557  Trifolium gracilentum W. H. Brewer 1862-5-19 1116 Contra Costa n Kirker's Pass Comment
  UC16558  Trifolium gracilentum W. H. Brewer 1862-4-24 989 Contra Costa Camp 68 Martinez Comment
  UC517488  Trifolium gracilentum John Thomas Howell 1933-5-14 11249 Contra Costa e St. Mary's College (hills) Comment
  UC692678  Trifolium gracilentum Mary L. Bowerman 1935-4-26 2908 Contra Costa w Indian Ceremonial Springs; Mount Diablo 1005 Comment
  JEPS127100  Trifolium hirtum Lowell Ahart, Josephine Guardino 2016-4-19 20759 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Spring USGS 7.5' Quad. Comment
  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
  UC555619  Trifolium macraei H. L. Mason 1928-4-13 4303 Contra Costa Richmond waterfront 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
  JEPS65989  Trifolium microdon W. L. Jepson May 23 1891-May 24 1891 13661 Contra Costa Mt. Diablo Comment
  UC692254  Trifolium microdon Mary L. Bowerman 1935-5-1 2933 Contra Costa 2 mi from entrance (West Road (=North Road)); Mount Diablo, West Road (=North Road) 182 Comment
  UC692255  Trifolium microdon Mary L. Bowerman 1933-5-17 2111 Contra Costa due s Olafson's barn (branch of Curry Canyon, on ridge between the two forks of the canyon); Mount Diablo Comment
  POM300711  Trifolium obtusiflorum Mary L. Bowerman 1930-6-28 396 Contra Costa Lower Silver Spring Comment
  UC165545  Trifolium oliganthum Chesnut and Drew 1889-4-16 Contra Costa Martinez Comment
  UC165547  Trifolium oliganthum Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  UC2070437  Trifolium oliganthum Barbara Ertter with Dan Norris 2001-4-8 17592 Contra Costa Lime Ridge Open Space east of Walnut Creek, path northwest of summit installation. Comment
  UCD32493  Trifolium olivaceum Beecher Crampton 1950-4-22 534 Contra Costa Contra Costa County, along State Highway 4, in Concord Valley. 30 Comment
  UC16787  Trifolium variegatum Ivar Tidestrom 1893-4-15 Contra Costa Sheep Island Comment
  CDA29506  Trifolium variegatum var. major D. G. Kelch, Troy MacGregor 2009-5-1 9 .279 Contra Costa Carquinez Strait; Fernandez Ranch in valley bottom along Christie Rd. Comment
  UC165546  Trifolium variegatum var. melananthum Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  UC1197527  Trifolium willdenovii J. P. Tracy 1900-3-24 620 Contra Costa Point Richmond 15 Comment
  UC1377676  Trifolium willdenovii W. J. Dress 1951-5-9 3311 Contra Costa just w Orinda Comment
  UC16752  Trifolium willdenovii W. H. Brewer 1862-5-12 1075 Contra Costa Mt. Diablo Comment
  UC579846  Trifolium willdenovii Annetta Carter 1936-4-19 1109 Contra Costa e side of island Red Rock Comment
  UC579847  Trifolium willdenovii Annetta Carter 1936-4-19 1110 Contra Costa e side of island Red Rock Comment
  UC692241  Trifolium willdenovii Mary L. Bowerman 1930-6-5 251 Contra Costa 5.8 mi from entrance (w rd = n rd); Mount Diablo Comment
  UC867018  Trifolium willdenovii Alice Eastwood 1915-5-30 4467 Contra Costa Mt. Diablo Comment
  RSA517735  Trifolium willdenovii Donald G. Nelson 1937-3-30 474 Contra Costa Railroad tracks paralleling the highway south of Byron on road to Tracy Comment
  JEPS78612  Triglochin striata Walter Knight, L. R. Heckard and Bert Johnson 1978-9-8 3299 Contra Costa Botany Cove Browns Island, Botany Cove Comment
  UCR139223  Triphysaria eriantha Joseph A. Ewan 1934-4-8 8762 Contra Costa San Francisco Bay Region, Head of Hog Canyon, S slope of Mount Diablo 640 Comment
  JEPS65192  Triphysaria eriantha subsp. eriantha L. R. Heckard 1971-4-15 2475 Contra Costa Morgan Territory road 5 1/2 mi n of its intersection with Manning road e Mt. Diablo; e of Mt. Diablo Comment
  CHSC116658  Triphysaria pusilla Lowell Ahart; Josephine Guardino 2016-4-19 20780 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the sides of the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  JEPS65194  Triphysaria pusilla L. R. Heckard 1971-4-15 2473 Contra Costa along Morgan Territory road 7 mi n of its intersection with Manning road e Mt. Diablo; e of Mt. Diablo 487 Comment
  UC691572  Triphysaria pusilla Mary L. Bowerman 1933-5-4 1989 Contra Costa (Rock City Ridge) Fossil Ridge Mount Diablo; , (Rock City Ridge) Fossil Ridge Comment
  CDA41894  Triphysaria versicolor subsp. faucibarbata D. G. Kelch 2005-5-6 5 .228 Contra Costa Carquinez Strait Region; Franklin Canyon. East of Christie Road. South of Route 4. 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
  CDA41896  Triphysaria versicolor subsp. faucibarbata D. G. Kelch 2005-3-26 5 .097 Contra Costa Carquinez Strait Region; Pinole Peak. Fernandez Ranch, south side - road from Perreria Road to Pinole Peak Ridge. Comment
  CDA41897  Triphysaria versicolor subsp. faucibarbata D. G. Kelch 2005-4-15 5 .145 Contra Costa Carquinez Strait Region; Rodeo Creek. EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump). Comment
  UC53698  Trisetum canescens J. Burtt Davy 1900-3-24 6520 Contra Costa Pt. Richmond Comment
  UCD93500  Trisetum canescens Beecher Crampton 1956-5-14 3423 Contra Costa 2 miles west of Martinez, on road to Crockett. Comment
  JEPS58038  Triteleia laxa W. L. Jepson 1923-6-10 9986 Contra Costa vicinity San Francisco Bay (Head of Marsh Creek); , Mt. Diablo, Marsh Creek Comment
  JEPS58065  Triteleia laxa W. L. Jepson 1918-6-3 7569 Contra Costa Donner Canyon Mt. Diablo 304 Comment
  UC130929  Triteleia laxa Katharine Brandegee 1909-4-24 Contra Costa Antioch Comment
  UC691988  Triteleia laxa Mary L. Bowerman 1931-4-18 721 Contra Costa Sycamore Canyon Mount Diablo Comment
  SD39092  Triteleia laxa Mc Callum 1933-4-24 3700 Contra Costa Adobe field near wlnut Creek. Comment
  CAS-BOT-BC67402  Tropidocarpum gracile Alice Eastwood 1914-3-14 3783 Contra Costa Byron Springs. 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
  JEPS111911  Typha angustifolia Dean G. Kelch and Andrew G. Murdock 2004-5-28 AGM 281 Contra Costa Refugio Valley. Comment
  UC1818859  Typha domingensis Barbara Ertter, Kristin Ertter 1995-7-11 14483 Contra Costa W side of Mount Diablo SW of Walnut Creek, lower end of Pine Pond 182 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
  UC2061510  Ulmus minor Dean G. Kelch 2016-4-30 16 .103 Contra Costa Carquinez Strait: Selby, west of Crockett. On west side of canyon near old dwelling foundation. Comment
  UC2028237  Ulmus pumila Barbara Ertter, Tony Morosco 1998-9-18 16434 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, above sand quarry [subsequently developed] on south side of Ygnacio Valley Road. Comment
  UC1126325  Umbellularia californica H. S. Yates 1936-3-14 5362 Contra Costa Marsh Creek 381 Comment
  UC1177379  Umbellularia californica Peter H. Raven 1950-2-19 1353 Contra Costa above Canyon Grocery at ne end of Moraga Ridge Moraga Ridge 213 Comment
  SEINET12102545  Umbellularia californica M. T. Doutt 1930-1 97 Contra Costa Marsh Creek Comment
  CAS-BOT-BC381826  Uropappus lindleyi Alice Eastwood 1923-5-4 11727 Contra Costa Mt. Diablo Comment
  UC1795024  Uropappus lindleyi R. K. Brummitt and B. Ertter 1998-5-13 19837 Contra Costa Mt Diablo, just below summit on S side 1000 Comment
  UC36691  Uropappus lindleyi H. M. Hall 1901-4-5 1731 Contra Costa Mt. Diablo 457 Comment
  UC691467  Uropappus lindleyi Mary L. Bowerman 1933-5-2 1954 Contra Costa below Pionner Camp (Mount Diablo); Mount Diablo 762 Comment
  CAS-BOT-BC381825  Uropappus lindleyi L. R. Abrams 1921-5-25 8010 Contra Costa Upper slopes of Mt Diablo Comment
  UC336484  Uropappus lindleyi unknown Contra Costa near Mt. Diablo Comment
  UCD136959  Uropappus lindleyi P. B. Kennedy 1925-4-26 s.n. Contra Costa Mt. Diablo, road to Sycamore Canyon. Comment
  UC1538811  Urospermum picroides Mark Blumler 1986-6-22 Contra Costa 1 mi e Grizzly Peak Blvd. (overlooking freeway) Comment
  RSA0029769  Urospermum picroides Barbara Ertter 1990-6-18 9133 Contra Costa Tilden Regional Park, along Nimitz hiking/bicycle trail near Inspiration Point. Comment
  CAS-BOT-BC404064  Urtica dioica subsp. holosericea Mary L. Bowerman 1931-8-29 1032 Contra Costa Mount Diablo. Sheep Camp Spring, by west road Comment
  JEPS111920  Urtica dioica subsp. holosericea Dean G. Kelch and Andrew G. Murdock 2004-5-7 DGK 04 .197 Contra Costa Canada del Cierbo. Comment
  POM210640  Urtica dioica subsp. holosericea Joseph A. Ewan 1933-10-15 8018 Contra Costa SW slope of Mount Diablo. Comment
  JEPS111917  Urtica urens Dean G. Kelch and Andrew G. Murdock 2004-3-5 DGK 04 .009 Contra Costa Sky Ranch. Dutra Fire Road. Franklin Canyon. Comment
  UC2028520  Urtica urens Barbara Ertter 1997-1-5 15438 Contra Costa Lime Ridge Open Space on northwest side of Mount Diablo, section on north side of Ygnacio Valley Road. Comment
  UC1005914  Verbascum phoeniceum N. Floy Bracelin 1943-5-2 2498 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
  UC723797  Verbena lasiostachys var. lasiostachys Joseph Andorfer Ewan 1936-7-5 9726 Contra Costa Wildcat Creek near CCC camp Wildcat Creek Comment
  UC2029170  Verbena lasiostachys var. scabrida Barbara Ertter 2000-7-16 17409 Contra Costa Pine Creek on WNW base of Mount Diablo. 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
  POM181452  Veronica peregrina subsp. xalapensis I. L. Wiggins 1930-4-17 4581 Contra Costa 1/4 mi. S. of Byron. Comment
  CDA6637  Viburnum rigidum Barbara Ertter 2001-10-29 17810 Contra Costa Tilden Regional Park, Selby Trail and Wildcat Gorge upstream from Lake Anza. 0 Comment
  UC1050194  Viburnum tinus N. Floy Bracelin 1943-2-9 2416 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC692688  Vicia americana var. americana Mary L. Bowerman 1931-3-21 589 Contra Costa Sycamore Canyon; Mount Diablo 335 Comment
  UC16943  Vicia americana var. americana H. P. Chandler 1900-3-17 Contra Costa Wildcat Canyon; Berkeley Hills Comment
  UC1795744  Vicia benghalensis Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14220 Contra Costa Mt. Diablo southeast of Walnut Creek, roadside at Curry Point. 541 Comment
  JEPS120288  Vicia disperma Barbara Ertter with David Gowen 2012-6-9 21016 Contra Costa lower Vollmer Peak Trail paralleling South Drive, southeastern Tilden Park in Berkeley Hills Comment
  UCR224651  Vicia sativa Dean Kelch 2007-4-29 07 .207 Contra Costa Richmond; 'Chevy's Hill' north of Hilltop Drive 68 Comment
  UC2028151  Vicia sativa subsp. sativa Barbara Ertter 1998-4-4 15961 Contra Costa Shell Ridge Open Space northwest of Mount Diablo. Comment
  CDA42434  Vicia villosa D. G. Kelch 2012-5-27 12 .075 Contra Costa Carquinez Strait Region; Pinole Valley Park. Comment
  CHSC116652  Vicia villosa subsp. varia Lowell Ahart; Josephine Guardino 2016-4-19 20764 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. In the middle of the dirt road, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  JEPS107126  Vicia villosa subsp. varia Barbara Ertter, Mary Bowerman 1995-6-11 14250 Contra Costa Shell Ridge Recreation Area southeast of Walnut Creek, at west base Mt. Diablo; near Indian Valley School entrance (planted Clarkia also present). 91 Comment
  JEPS127049  Vicia villosa subsp. varia Lowell Ahart, Josephine Guardino 2016-4-19 20764 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Re