Search Results — 2000 specimen records retrieved (1365 records with coordinates)
(That's the default maximum. Contact Jason Alexander for larger data requests.)

Results for search: County=CONTRA COSTA; Source=All;   
Map/download results:

BerkeleyMapper with layers and yellow flags

Download Options:
Select all records · Select records with coordinates

Include annotations and voucher information

PLEASE NOTE: Due to changes in newer versions of Excel, directly copying text from the above selected results does not produce a usable table.
    Follow these steps:
      1. The contents of the selected results window must be copied into a text editor like TextEdit for Mac or WordPad for Windows
      2. The selected results must be saved as a new text document.
      3. This new text document can now be copied into Excel or imported as a tab delimited text file.

(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.

Click on column header to sort data (* sorts by family); click in leftmost checkbox to select record. CCH Help Page.
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
  UC1050725  Abelia triflora N. Floy Bracelin 1941-5-16 1126 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CDA34008  Acacia melanoxylon D. G. Kelch 2011-3-31 11 .082 Contra Costa Carquinez Region; Richmond; Hilltop Lake Park. Comment
  UC1607582  Acacia melanoxylon Barbara Ertter 1991-5-12 9815 Contra Costa in sw corner of El Cerrito (Point Isabel Regional Shoreline, along old railroad right-of-way between bay and salicornia marsh, on San Francisco Bay); San Francisco Bay, Point Isabel Regional Shoreline Comment
  JEPS44839  Acaena pinnatifida var. californica W. L. Jepson 1922-5-11 9639 Contra Costa North Berkeley Hills Comment
  UC18112  Acer macrophyllum H. P. Chandler 584 Contra Costa Briones Valley region of Mount Diablo, Briones Valley Comment
  UC18113  Acer macrophyllum J. Burtt Davy May 1898 Contra Costa creek at San Ramon region of Mount Diablo, San Ramon Comment
  JEPS111583  Acer negundo D. G. Kelch 2005-4-17 05 .155 Contra Costa Hercules Hwy 80 west between Cummings Skyway and Route 4 exit 40 Comment
  UC18099  Acer negundo J. Burtt Davy 1895-4-13 1012 Contra Costa Lafayette Comment
  UC2028958  Acer negundo Barbara Ertter 2000-7-16 17379 Contra Costa Castle Rock Regional Recreation Area on SW flank of Mount Diablo, lower Pine Creek with sporadic surface water Comment
  UC1301055  Achillea millefolium Helen K. Sharsmith 1962-4-18 4942 Contra Costa Crockett-Martinez road above Carquinez Straits; San Francisco Bay Region 60 Comment
  UC2032824  Achillea millefolium Doran, Andrew Scott 2012-3-20 694 Contra Costa North end of Brooks Island along ridge overlooking artificial spit, southwest of caretakers residence. Comment
  UC1046583  Achyrachaena mollis Alex D. Hawkes and R. Bacigalupi 1951-4-12 4775 Contra Costa meadow near Walnut Creek Comment
  UC1084392  Achyrachaena mollis G. Thomas Robbins 1937-4-25 145 Contra Costa 2 mi e Alamo Comment
  UC1733837  Achyrachaena mollis Kay H. Beach 1941-4-30 1081 Contra Costa 5 mi W of Byron; Marsh Creek Road 30 Comment
  UC565420  Achyrachaena mollis Chas. M. Belshaw 1935-5-24 778 Contra Costa n face Bald Peak; Oakland and Berkeley Hills, Bald Peak Comment
  UCD164888  Achyrachaena mollis Henry House 1995-4-30 1995- 7 Contra Costa About 1 km west of Walnut Blvd., ca. 0.5 km south of Marsh Creek Rd. 60 Comment
  CAS-BOT-BC29883  Achyrachaena mollis Alice Eastwood 1914-1-1 s.n. Contra Costa unspecified Comment
  POM54988  Achyrachaena mollis C. F. Baker 1903-4-27 2795 Contra Costa Byron. Comment
  UC1543174  Achyrachaena mollis Donald G. Nelson 1937-4-18 501 Contra Costa towards Tracy on Marsh Creek Road Byron 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
  JEPS112352  Acmispon wrangelianus Dean G. Kelch and Andrew G. Murdock 2004-4-11 04 .061 Contra Costa Crockett - 5th St. Prairie, County: Contra Costa; 5th street Prairie, Crockett. Comment
  JEPS112393  Acmispon wrangelianus Dean G. Kelch and Andrew G. Murdock 2005-5-13 05 .253 Contra Costa Martinez - West: Ozol Rock and Scenic Drive. Comment
  CDA36365  Acroptilon repens Chris Denijs 2011-9-14 PDR# 1454138 Contra Costa 4571 Orwood Rd., Brentwood. 0 Comment
  CDA37430  Acroptilon repens D. G. Kelch, Mike Perlmutter 2011-9-23 11 .752 Contra Costa Immediately north of Discovery Bay. Comment
  UC691158  Adenostoma fasciculatum Mary L. Bowerman 1933-2-4 1689 Contra Costa flats e. of Meridian-North Peak divide Mt. Diablo 822 Comment
  CAS-BOT-BC65622  Adiantum jordanii D. E. Breedlove 1970-4-18 17432 Contra Costa at the north edge of Lafayette above Laurel Drive 243 Comment
  CDA19920  Aegilops triuncialis Slate 2002-6-2 PDR P 099580 Contra Costa Northern California; Mt Diablo State Park. 0 Comment
  JEPS100040  Aesculus californica G. Smick 2003-5-13 GAS 191 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  OBI49101  Aesculus californica Joseph Andorfer Ewan 1936-5-31 9715 Contra Costa Wildcat Crk Comment
  UC18188  Aesculus californica Ivar Tidestrom Jun 1895 Contra Costa Comment
  UC692716  Aesculus californica Mary L. Bowerman 1930-6-3 226 Contra Costa 1.9 mi from Mount Diablo North Road entrance; Mount Diablo Comment
  CAS-BOT-BC202596  Aesculus californica Volney Rattan 1887-5-27 s.n. Contra Costa Alhambra Val. Comment
  JEPS36319  Agoseris grandiflora var. grandiflora W. L. Jepson 1943-6-8 20846 Contra Costa midway of ridge Moraga Ridge Comment
  SEINET6738507 Image available Agoseris heterophylla H. P. Chandler 1901-4-5 976 A Contra Costa Mt. Diablo Comment
  POM203659  Agoseris heterophylla John T. Howell 1933-5-14 11260 Contra Costa Hills east of St. Mary's college Comment
  UC29360  Agoseris heterophylla var. heterophylla F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  UC29385  Agoseris retrorsa F. T. Bioletti 1894-5-13 Contra Costa Mt. 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
  JEPS127233  Agrostis avenacea Lowell Ahart, Josephine Guardino 2016-4-19 20787 Contra Costa 1.4 miles (air) northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Dam, approximately 25 miles (air) southwest to Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  RSA0027649  Agrostis capillaris Barbara Ertter, Amy Rusev 1998-1-17 15903 Contra Costa Edge of Lime Ridge Open Space at NW foot of Mount Diablo, around former quarry (subsequently developed) on south side of Ygnacio Vally Road. Comment
  JEPS100030  Agrostis exarata A. Langston 2003-6-6 AL 35 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS100031  Agrostis exarata S. O'Neil 2003-6-24 SEO 41 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CDA39045  Agrostis pallens D. G. Kelch 2011-6-5 11 .574 Contra Costa Carquinez Strait; South of Crockett, south of Cummings Skyway. Comment
  UC2028522  Aira caryophyllea Barbara Ertter 1997-9-14 15810 Contra Costa Southwest side of Mount Diablo, Secret Trail at head of Pine Canyon. Comment
  UC2028390  Alisma lanceolatum Barbara Ertter with Tony Morosco 1998-7-11 16375 Contra Costa Antioch Regional Shoreline under south end of Antioch Bridge, edge of water on riprap Comment
  CAS-BOT-BC175360  Allenrolfea occidentalis J. Burtt Davy 1898-5-1 s.n. Contra Costa Byron Springs, Mt. Diablo region Comment
  CAS-BOT-BC175364  Allenrolfea occidentalis Alice Eastwood 1927-5-19 14435 Contra Costa Byron Springs Comment
  CAS-BOT-BC175358  Allenrolfea occidentalis T. C. Fuller 1965-11-24 14321 Contra Costa On the slopes of the drainageway from Byron Hot Springs, s. side Byron Hot Springs Rd., 0.6 mi. s.w. of Byron-Tracy Hwy, ca. 1 mi. s.w. of Byron Comment
  RSA411794  Allenrolfea occidentalis E. E. Stanford 1930-08 1871 Contra Costa Near Old River; near sloughs. 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
  RSA367156  Allium attenuifolium H. de Forest 1930-4-6 s.n. Contra Costa Unspecified. Comment
  RSA367158  Allium falcifolium L. S. Rose 1935-5-16 35164 Contra Costa Mt. Diablo. Comment
  UC3070  Allium falcifolium W. H. Brewer 1862-5-7 1060 Contra Costa summit Mt. Diablo; summit of Mt. Diablo Comment
  CAS-BOT-BC475535  Allium serra R. Bacigalupi 1927-5-13 1570 Contra Costa Along Danville - Mt. Diablo Road near Garden of the Jungle Gods 518 Comment
  UC1481558  Allium serra Neil Havlik 1980-5-18 920 Contra Costa along fire road on e side, Morgan Territory Morgan Territory Comment
  UCD138636  Allium serra Cliff Low 1978-5-19 20 Contra Costa Back Canyon Creek, east of Eagle Peak on Mount Diablo. 304 Comment
  UC3116  Allium unifolium State Survey 1174 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC476605  Allium unifolium Alice Eastwood 1916-5-30 4454 Contra Costa Mt. Diablo near base Comment
  CAS-BOT-BC476606  Allium unifolium Mrs. E. C. Wright 1917-6-1 s.n. Contra Costa Mt. Diablo Comment
  SEINET11268247  Allophyllum gilioides Barbara Ertter, Tony Morosco 1998-4-12 16021 Contra Costa Mount Olympia on north side of Mount Diablo, Olympia Road down ridge west of summit.; 0 853 Comment
  JEPS69375  Allophyllum gilioides subsp. violaceum Mary L. Bowerman 1935-4-26 2919 Contra Costa summit Meridian Peak; Mt. Diablo, Meridian Peak 1158 Comment
  CAS-BOT-BC170928  Alnus rhombifolia W. C. Blasdale 1896-2-29 s.n. Contra Costa Clayton Comment
  UC1093922  Alnus rhombifolia Herbert L. Mason 1924-11-23 1159 Contra Costa Las Trampas Ridge; via Cashion Comment
  UC34816  Alnus rhombifolia W. C. Blasdale 1896-2-29 Contra Costa Clayton Comment
  UC1952849  Aloe striatula Barbara Ertter 2007-5-20 19027 Contra Costa Berkeley Hills SE of UC campus, along path north of Dwight Way extension at head of Panoramic Way Comment
  CAS-BOT-BC137970  Alopecurus saccatus John Thomas Howell 1953-4-26 28936 Contra Costa Between Byron and Byron Hot Springs. Comment
  CDA20558  Alternanthera philoxeroides unknown 2005-6-23 s.n. Contra Costa San Francisco Bay Area; Garden weed in Danville, CA. 0 Comment
  UC691945  Amaranthus albus Mary L. Bowerman 1932-8-27 1515 Contra Costa s of Turtle Rock; Mt. Diablo Comment
  CDA15289  Amaranthus albus G. F. Hrusa, D. Crowe, R. York 1998-7-17 14729 Contra Costa Sacramento Delta; Along top of levee separating Dow Ecological Reserve and San Joaquin R. Comment
  UC2027846  Amaranthus albus Barbara Ertter, Mary Bowerman 1996-11-1 15402 Contra Costa North base of Mount Diablo, near Donner Canyon trailhead at end of Regency Drive. Comment
  UC2028370  Amaranthus albus Barbara Ertter 1998-6-20 16247 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Briones-Mount Diablo Trail SW of Old Borges Ranch Comment
  CDA7886  Amaranthus deflexus D. G. Kelch, A. G. Murdock 2004-7-9 04 .291-B Contra Costa Carquinez Strait; Crockett; Edwards Creek, immediately below high school. Comment
  CDA23720  Amaranthus powellii D. G. Kelch 2002-7-15 2 .005 Contra Costa CA Delta; Old San Joaquin River channel, E of Brentwood. San Joaquin County border. 0 Comment
  RSA300588  Amaranthus retroflexus Mary L. Bowerman 1936-9-9 3539 Contra Costa Sycamore Canyon just below Blackhawk Ranch Comment
  UC1555375  Ambrosia psilostachya Jerry Powell 1988-8-25 1547 Contra Costa w, on sandy beach Richmond; Point Molate Comment
  JEPS102911  Ammannia coccinea Lisa Schultheis with Kevin Hintsa 1995-8-20 260 -95 Contra Costa Macedo Ranch, N edge, near house Mount Diablo Comment
  UC1178261  Amsinckia eastwoodiae R. Bacigalupi and Francia Chisaki 1957-3-27 914 Contra Costa 2.2 mi southeast of Byron (on Byron Highway) Comment
  CHSC91870  Amsinckia intermedia Richard R. Halse 1988-2-20 3541 Contra Costa Along State Hwy. 4 near its junction with Balfour Road on the S edge of Brentwood. 23 Comment
  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
  UC691398  Amsinckia intermedia Mary L. Bowerman 1931-4-4 642 Contra Costa near w entrance Mount Diablo (North gate) Comment
  UC1094071  Amsinckia intermedia Francia Chisaki 1952-3-13 203 Contra Costa 0.25 mi s of Highway #50 (on Mountain House Road) Comment
  JEPS20865  Amsinckia lunaris R. F. Hoover 1938-4-20 3178 Contra Costa lower end San Pablo Reservoir Comment
  RSA125789  Amsinckia lunaris Francia Chisaki, Peter Kamb 1952-5-4 2275 Contra Costa Bear Creek Road, 1.5 miles east of Orinda-Richmond road (leaving this road ca. 1 mile north of Orinda) Comment
  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
  UC1178245  Amsinckia menziesii var. menziesii Francia Chisaki and R. Bacigalupi 1957-3-27 911 Contra Costa 1.5 mi e of Antioch City limits (just e of Kaiser Gypsum Plant along Wilbur Avenue) Comment
  CAS-BOT-BC26953  Amsinckia scabra Alice Eastwood 1923-5-4 11731 Contra Costa Mt. Diablo Comment
  RSA0090978  Amsinckia scabra A. A. Heller 1941-3-23 15901 Contra Costa Mt. Diablo. Along the roadside about 2/3 up the mountain near a ditch. Comment
  JEPS112043  Anagallis arvensis A. G. Murdock 2004-3-19 215 Contra Costa Luzon Sycamore Ave. just east of Rodeo/Hercules where train crosses Highway 4 (Luzon) 60 Comment
  JEPS99972  Anagallis arvensis G. Smick 2003-5-6 GAS 165 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  SBBG122786  Anagallis arvensis B. Ertter 1993-5-7 11717 Contra Costa horse trail SE of Vollmer Peak, E of Tilden Park steam trains 518 Comment
  UCD164884  Anagallis arvensis Henry House 1995-5-16 1995- 11 Contra Costa About 100 m west of Walnut Blvd., ca. 1.25 km south of Marsh Creek Rd. 33 Comment
  UCD117436  Anagallis arvensis Jennifer Davies 1982-4-11 5 Contra Costa 1 mile NW of South Checking Station on South Gate Road, Mt. Diablo. 487 Comment
  JEPS95672  Anagallis monelli Nancy Hillyard 2000-4-23 Contra Costa E-facing slope overlooking Siesta Valley (on Skyline Trail between Vollmer Peak and Sibley Park) 300 Comment
  UCD84947  Androsace elongata subsp. acuta Chuck Hughes 2010-3-29 219 Contra Costa About 0.7 mile south of Vasco Road. 239 Comment
  JEPS12265  Anemopsis californica J. W. Blankinship 1913-6-16 Contra Costa Walwood, Ygnacio Valley Ygnacio Valley; Walwood, Ygnacio Valley Comment
  UC2062460  Anemopsis californica Barbara Ertter with David Gowen and Mike Park 2004-6-13 18374 Contra Costa Black Diamond Mines Regional Preserve, just downstream from old homestead on west side of Old Homestead Loop. Comment
  JEPS111621  Angelica californica D. G. Kelch 2004-7-9 04 .308B Contra Costa Vaca Canyon Vaca Canyon 165 Comment
  UC691887  Angelica californica Mary L. Bowerman 1935-3-16 2740 Contra Costa Mount Diablo, e fork of Arroyo del Cerro Arroyo del Cerro; Mount Diablo, Arroyo del Cerro 274 Comment
  UC697132  Anthemis cotula Mary L. Bowerman 1930-6-3 228 Contra Costa North Road (1.9 mi from entrance) Mount Diablo 167 Comment
  JEPS107105  Anthriscus caucalis Barbara Ertter, Lisa Schultheis 1995-4-27 14015 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; north-facing open brushy slope with scattered oaks along extension of Valley View road. 182 Comment
  UC2012963  Anthriscus caucalis Barbara Ertter with Travis Columbus 1990-6-10 9111 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill, damp soil in eroded stream cut, near crossing on Spengler Trail NE of Briones Peak. Comment
  RSA0008239  Antirrhinum elmeri A. D. E. Elmer 1903-06 4809 Contra Costa Mount Diablo Comment
  UC2032826  Aphanes arvensis Doran, Andrew Scott 2012-3-20 696 Contra Costa Second highest point on Brooks Island below rocky outcrop Comment
  UC20822  Apiastrum angustifolium Edw. L. Greene 1892-6-20 Contra Costa Mount Diablo Comment
  UC2028980  Apiastrum angustifolium Barbara Ertter 2000-5-14 17018 Contra Costa Donner Basin on north side of Mount Diablo, upper end of Falls Trail near junction of Cardinet Oaks Road. Comment
  UC2046342  Apium graveolens Barbara Ertter July 1999 s.n. Contra Costa Cerrito Creek just east of Pierce Street. Alameda/Contra Costa County line. Comment
  UC691848  Apocynum cannabinum Mary L. Bowerman 1931-5-28 905 Contra Costa gully to s. at e. end of Castle Rock Farm (Pine Canyon); Mt. Diablo, Pine Canyon Comment
  UC465564  Aquilegia Milo S. Baker 1904-6-23 Contra Costa near Hurley's; Mt. Diablo Comment
  JEPS60396  Aquilegia formosa V. E. Ferguson Contra Costa Donner Canyon Mt. Diablo Comment
  UC692086  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
  CAS-BOT-BC17272  Arabis blepharophylla Paul F. Covel 1938-5-8 1514 Contra Costa Summit Mount Diablo. Comment
  CAS-BOT-BC128692  Arbutus menziesii W. W. Carruth 1900-4-1 s.n. Contra Costa Redwood Canyon [Canon] Comment
  JEPS77022  Arbutus menziesii Robert M. Lloyd 1963-3-17 2147 Contra Costa 1 mi s of Moraga (on road to Castro Valley) Comment
  SBBG50848  Arbutus menziesii A. Hartman 1960-4-19 9 D Contra Costa North Gate Rd, Mt Diablo St Park 609 Comment
  UC692044  Arceuthobium campylopodum Mary L. Bowerman 1931-10-31 1064 Contra Costa south Rd near junction Mount Diablo Comment
  UC2028013  Arceuthobium campylopodum Barbara Ertter 1997-11-1 15877 Contra Costa South side Mount Diablo, Knobcone Point Road east of junction with Black Hawk Ridge Road. Comment
  UC615582  Arceuthobium campylopodum Beryl O. Schreiber 1933-10-5 937 Contra Costa rd to Mt Diablo Comment
  UC1509579  Arctostaphylos Stephen W. Edwards 1984-2-20 SW- 84 -1 Contra Costa w flank of ridge e Olinda Drive (nw of intersection of San Pablo Dam Rd and Castro Ranch Rd) Comment
  SEINET11977748  Arctostaphylos andersonii var. auriculata L. S. Rose 1932-1 32110 Contra Costa Nortonville Comment
  SEINET11989037  Arctostaphylos andersonii var. auriculata Unknown 1968-1 1308 Contra Costa ca 300 yds above road at Somersville Comment
  CAS-BOT-BC24109  Arctostaphylos auriculata Alice Eastwood; John Thomas Howell 1936-4-19 2130 Contra Costa Nortonville Comment
  CAS-BOT-BC24115  Arctostaphylos auriculata Mary L. Bowerman 1932-9-5 1546 Contra Costa Inner Black Hills: Near fire trail which runs south from large spur (on Meridian) heading into Sycamore Canyon. Comment
  CAS-BOT-BC24116  Arctostaphylos auriculata Mary L. Bowerman 1935-3-24 2750 Contra Costa Lime Ridge, west face, between two major cuts of the Cowell Cement Company. Comment
  CDA9744  Arctostaphylos auriculata D. G. Kelch, D. A. Weinstein 1995-3-6 s.n. Contra Costa Rock City. Mt. Diablo. Comment
  POM300661  Arctostaphylos auriculata Mary L. Bowerman 1933-3-25 1772 Contra Costa Emmons Canyon: South-facing slope between the two forks, top of ridge (Pine Canyon ridge) Comment
  RSA202870  Arctostaphylos auriculata Edward Lee 1936-1-12 1713 Contra Costa Immediately south of Nortonvillep Comment
Read comments
Aug 25 2011
  RSA44371  Arctostaphylos auriculata L. S. Rose 1949-3-6 49004 Contra Costa Mt. Diablo, above Rock City. 518 Comment
  RSA622480  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27601 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments
Jan 30 2013
  UC1980319  Arctostaphylos auriculata Barbara Ertter with David Gowen 2012-2-28 20932 Contra Costa ridge circled by lower (south) end of Whipsnake Loop; Contra Costa Water District land west of Los Vaqueros Reservoir; southeast of Morgan Territory Regional Preserve Comment
  UC549567  Arctostaphylos auriculata J. E. Adams 1934-3-19 678 Contra Costa Mt. Diablo 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
  UCD50265  Arctostaphylos auriculata Roman Gankin 1968-11-14 1308 Contra Costa Ca. 300 yds. above road at Somersville. Comment
  UCSB24345  Arctostaphylos auriculata Jensen, H. 1938-10-27 Contra Costa Head of Sycamore Creek, Mt. Diablo 518 Comment
  CAS-BOT-BC23561  Arctostaphylos crustacea W. W. Carruth 1902-3-1 s.n. Contra Costa Pine Ridge, Moraga Valley Comment
  CDA33795  Arctostaphylos crustacea D. G. Kelch 2011-2-4 11 .017 Contra Costa Bear Creek Road west of Orinda near of Briones Park. 0 Comment
  CAS-BOT-BC23556  Arctostaphylos crustacea Lewis S. Rose 1954-3-1 54004 Contra Costa Oakland Hills above Redwood Canyon 609 Comment
  SEINET11989662  Arctostaphylos crustacea N. Havlik, Knight, W. 1982-1 4548 Contra Costa Briones Regional Park adjacent to Russell Tree Farm 328 Comment
  CAS-BOT-BC24808  Arctostaphylos glandulosa subsp. glandulosa C. Hart Merriam 1919-8-24 s.n. Contra Costa Las Trampas Peak. Comment
  RSA367269  Arctostaphylos glandulosa subsp. glandulosa H. E. McMinn 1923-3-6 875 a Contra Costa Mt. Diablo. Comment
  UC692234  Arctostaphylos glauca Mary L. Bowerman 1933-4-15 1857 Contra Costa canyon s Arroyo del Cerro (s edge of wooded gully); Mt. Diablo 381 Comment
  RSA632819  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27583 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  CAS-BOT-BC38877  Arctostaphylos manzanita subsp. laevigata Lewis S. Rose 1934-2-1 34012 Contra Costa Sandstone hills, S. slope, Mt. Diablo 609 Comment
  CAS-BOT-BC38923  Arctostaphylos manzanita subsp. laevigata Alice Eastwood 1922-5-14 11312 Contra Costa Mt. Diablo Comment
  OBI14657  Arctostaphylos manzanita subsp. laevigata H. E. McMinn, E. Maino 1931-4-11 136 Contra Costa Mt Diablo Comment
  RSA122399  Arctostaphylos manzanita subsp. laevigata H. A. Jensen 1938-10-27 451 Contra Costa Head of Curry Canyon 518 Comment
  UC692221  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1931-3-1 540 Contra Costa e meridian (w part of chaparral); Mount Diablo, Inner Black Hills Comment
  UC692231  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1932-9-5 1545 Contra Costa large spur on meridian which heads into Sycamore Canyon; Mount Diablo Comment
  UC82944  Arctostaphylos manzanita subsp. laevigata Katharine Brandegee 1889-1 5 Contra Costa Antioch Comment
  UCD51723  Arctostaphylos manzanita subsp. laevigata H. A. Jensen 1938-10-27 451 Contra Costa Head of Curry Canyon. 518 Comment
  RSA0034774  Arctostaphylos manzanita subsp. laevigata Lewis S. Rose 1934-2-28 34040 Contra Costa 8 mi. NE Danville. S. slope Mt. Diablo. Comment
  UC692224  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1938-6-24 3693 Contra Costa road 8.9 mi from North Gate (crest of ridge above road, below Pines Picnic Area); Mount Diablo 792 Comment
  CAS-BOT-BC24386  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1936-8-19 3530 Contra Costa Mount Diablo, Pine Canyon mouth, most northerly west-heading streamlet shown on topographic map (now dry). 167 Comment
  CAS-BOT-BC24394  Arctostaphylos manzanita subsp. manzanita Brandegee 1889-1-1 5 Contra Costa Antioch. Comment
  CAS-BOT-BC24399  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1938-6-24 3693 Contra Costa Mount Diablo, Road 8.9 mi. from North Gate: crest or ridge above road (below Pines Picnic Area). 792 Comment
  POM193975  Arctostaphylos manzanita subsp. manzanita J. T. Howell 1926-3-7 1665 Contra Costa Mt. Diablo on old wagon road. Comment
  POM300730  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1932-1-30 1083 Contra Costa Inner Black Hills, northwest corner of basin of northeast fork of Sycamore Creek. Comment
  JEPS19848  Arctostaphylos tomentosa subsp. crustacea W. L. Jepson 1914-1-31 5718 Contra Costa Moraga Ridge Oakland Hills 457 Comment
  UC1120187  Arctostaphylos tomentosa subsp. crustacea R. C. Wilson 1935-3-14 8156 Contra Costa 2 mi w Cave Pt.; Mt. Diablo Quadrangle Comment
  UC120093  Arctostaphylos tomentosa subsp. crustacea R. W. Lundh 1933-3-4 210 Contra Costa 1/2 mi sw Pinehurst; Concord Quadrangle Comment
  UC549440  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1935-10-21 550 Contra Costa Moraga Ridge Comment
  UC549475  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-19 680 Contra Costa Rock City Mount Diablo Comment
  UC2046014  Arctostaphylos viscida subsp. mariposa Stephen W. Edwards July, 2012 s.n. Contra Costa Pleasant Hill, along Taylor Blvd. Comment
  UC2046013  Arctostaphylos viscida subsp. viscida Stephen W. Edwards July, 2012 s.n. Contra Costa Martinez. Comment
  UC692179  Argemone Mary L. Bowerman 1932-10-1 1603 Contra Costa Mount Diablo, Mitchell Canyon Mitchell Canyon; Mount Diablo, Mitchell Canyon Comment
  CDA22411  Aristolochia californica D. G. Kelch, A. G. Murdock 2003-2-7 3 .034 Contra Costa Carquinez Strait Region; McEwen Road. Comment
  UCD137820  Aristolochia californica G. L. Stebbins Jr.; P. Dansereau, C. McMillan, K. Naravan 1949-3-26 3967 Contra Costa 0.5 mile northeast of Saint Mary's College, Moraga. Comment
  UC1584664  Artemisia douglasiana Jerry Powell 1990-8-29 1591 Contra Costa Antioch National Wildlife Refuge Comment
  JEPS5091  Asclepias californica Mary L. Bowerman 1935-5-1 2944 Contra Costa 4.4 mi from entrance (West road); Mount Diablo 381 Comment
  JEPS15235  Asclepias cordifolia Rimo Bacigalupi with G. Thomas Robbins 1956-5-11 5642 Contra Costa 1/4 mi above and nw Glen Frazier Station on the Santa Fe Railway; Franklin Canyon 106 Comment
  UC35243  Asclepias cordifolia Prof. E. L. Greene April 1889 Contra Costa hills near Martinez Comment
  UC691840  Asclepias fascicularis Mary L. Bowerman 1932-11-25 1667 Contra Costa Silver Spring Mount Diablo Comment
  UCR16092  Asclepias fascicularis 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
  UC2013059  Asclepias fascicularis Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14916 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  UC2013060  Asclepias fascicularis Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14916 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek Comment
  CDA1505  Aster chilensis D. G. Kelch 1998-10-13 s.n. Contra Costa Carquinez Strait; Base of Elkhorn Creek, E of Crockett. Comment
  CDA15295  Aster lentus Amy Hiss 1998-10-14 s.n. Contra Costa Sacramento Delta; Marina Fishing Pier at northernmost limit of city of Antioch. Comment
  SEINET11851717  Aster subulatus var. ligulatus L. S. Rose 1938-1 38312 Contra Costa Byron 3 Comment
  CAS-BOT-BC180572  Astragalus asymmetricus Mrs. E. C. Wright 1917-6-1 s.n. Contra Costa Mt. Diablo Comment
  UC1606355  Astragalus asymmetricus Barbara Ertter with Dianne Lake 1991-8-18 10678 Contra Costa nw Bull Valley staging area (Carquinez Strait Regional Shoreline e of Crockett); Carquinez Strait Regioinal Shoreline e of Crockett Comment
  UC168336  Astragalus asymmetricus Katharine Brandegee 1908-1 Contra Costa near Antioch; near Antioch Comment
  UC83459  Astragalus asymmetricus Katharine Brandegee June 1891 Contra Costa Antioch Comment
  CAS-BOT-BC180573  Astragalus asymmetricus unspecified s.n. Contra Costa Marsh Creek near Mt. Diablo Comment
  POM181432  Astragalus asymmetricus I. L. Wiggins 1930-4-17 4562 Contra Costa Near Mountain House, Altamont Pass. Comment
  UC13350  Astragalus didymocarpus J. Burtt Davy 1895-4-7 934 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
  UC692524  Astragalus gambelianus Mary L. Bowerman 1932-4-9 1328 Contra Costa small ridge e of south spur meridian (Inner Black Hills, Mount Diablo); Mount Diablo, Inner Black Hills Comment
  CAS-BOT-BC178472  Astragalus gambelianus H. L. Mason 1928-4-26 4380 Contra Costa Berkely - Oakland Hills Comment
  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
  UC1607661  Athysanus pusillus Barbara Ertter with Michelle Seidl 1992-3-14 10920 Contra Costa e of Mount Diablo (Morgan Territory Regional Preserve); Morgan Territory Regional Preserve Comment
  CAS-BOT-BC17459  Athysanus pusillus Mary L. Bowerman 1931-2-28 525 Contra Costa Mount Diablo. Rock City Ridge near Rock City. 518 Comment
  SEINET12004480  Athysanus pusillus L. S. Rose 1932-1 32107 Contra Costa Nortonville Comment
  RSA452691  Atriplex argentea E. E. Stanford 1930-08 1870 Contra Costa near Old River Comment
  UC205356  Atriplex argentea var. mohavensis H. M. Hall 1919-11-12 10972 b Contra Costa where road turns from highway to Springs (Byron); Byron Comment
  CAS-BOT-BC168564  Atriplex cordulata Walter Knight 1977-7-4 s.n. Contra Costa Black Diamond Mines Regional Preserve near Antioch. About 1 mile south of Contra Loma Regional Park 45 Comment
  CAS-BOT-BC168537  Atriplex coronata H. M. Hall 1923-10-2 s.n. Contra Costa Byron Hot Springs Comment
  CAS-BOT-BC168543  Atriplex coronata R. E. Frenkel 1964-9-18 855 Contra Costa On Balfour Road, 0.2 mile west of Bixler Road 6 Comment
  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
  UC205040  Atriplex joaquinana Katharine Brandegee Contra Costa Antioch Comment
  JEPS111798  Atriplex lentiformis A. G. Murdock 2004-6-4 320 Contra Costa Pacheco Marsh On east end of diked marsh near road, only in highest point of old marsh (now dry ground) 5 Comment
  UC217190  Atriplex rosea H. M. Hall 1919-11-14 10971 Contra Costa n Byron; n of Byron Comment
  CDA21599  Atriplex semibaccata D. G. Kelch, Mike Park 2008-9-1 8 .303 Contra Costa Carquinez Strait; Lonetree Point. Rodeo Shoreline Park. Rodeo. Comment
  JEPS111801  Atriplex semibaccata D. G. Kelch 2004-7-9 04 .300 Contra Costa Port Costa - Shore Past Costa Shore 2 Comment
  JEPS111803  Atriplex triangularis D. G. Kelch 2004-5-7 04 .194 Contra Costa Ca ada del Cierbo Ca ada del Cierbo 40 Comment
  CDA19825  Avena fatua P. Akers 2002-5-11 s.n.- 2 a Contra Costa Northern California; Mt Diablo Rd. 205 Comment
  RSA762309  Avena fatua William J. Ferlatte, L. M. Moe 1970-4-27 1225 Contra Costa San Francisco Bay, Red Rock Island. Comment
  UC53686  Avena fatua J. Burtt Davy 1900-5-24 6537 Contra Costa Pt. Richmond Comment
  UC691223  Avena fatua Mary L. Bowerman 1935-4-19 2853 Contra Costa West road 3.5 mi from entrance; Mount Diablo 381 Comment
  UCD56310  Avena fatua A. A. Beetle 1942-3-22 3266 Contra Costa Brooks Island in San Francisco Bay. Comment
  JEPS112257  Azolla filiculoides Andrew G. Murdock 2004-4-30 311 Contra Costa In Pinole Creek near Pig Sale. Comment
  CDA10377  Baccharis glutinosa D. G. Kelch, A. G. Murdock 2003-8-13 3 .138 Contra Costa Carquinez Strait; Pinole Creek. Comment
  CAS-BOT-BC98614  Baccharis pilularis John Thomas Howell; Gordon H. True 1972-6-29 48926 Contra Costa Near Byron Hot Springs (site) Comment
  UC1948938  Baccharis pilularis William J. Ferlatte, L. Maynard Moe 1970-4-27 1239 Contra Costa San Francisco Bay: Red Rock Island Comment
  OBI37081  Baccharis pilularis Calvin Craig 1983-11-5 20 Contra Costa Colelcted on North east side of Mt. Diablo Comment
  POM181441  Baccharis salicifolia I. L. Wiggins 1930-4-18 4600 Contra Costa Levee bank, near ferry, Jersey Island Comment
  CAS-BOT-BC98191  Baccharis salicifolia Ira L. Wiggins 1930-4-18 4600 Contra Costa Near ferr, Jersey Island Comment
  OBI16940  Balsamorhiza deltoidea Rimo Bacigalupi 1955-5-4 4978 Contra Costa S of and above Nortonville, along rd to Irish Cyn 427 Comment
  RSA0033933  Balsamorhiza deltoidea Barbara Ertter, Holly C. Forbes 1997-4-20 15564 Contra Costa North base of Mount Diablo at NE base of Eagle Ridge. Lower end of Eagle Peak Trail. Comment
  CAS-BOT-BC16379  Barbarea orthoceras John Thomas Howell 1976-5-20 s.n. Contra Costa Mount Diablo. Below Juniper Camp. Comment
  UC691254  Barbarea orthoceras Mary L. Bowerman 1933-4-22 1899 Contra Costa w of Cave Point (s-face); Mount Diablo, Inner Black Hills Comment
  CDA15255  Bellardia trixago G. F. Hrusa, D. Crowe 1998-5-8 14386 Contra Costa Sacramento Delta; E end of Dow Chemical property in Pittsburg. Comment
  POM300991  Bellardia trixago Mary L. Bowerman 1938-5-25 3632 Contra Costa North Road 1.6 miles from North Gate where stream crosses road. 152 Comment
  RSA60805  Bellardia trixago Carlotta C. Hall 1911-5-20 8835 Contra Costa Near Concord. 100 Comment
  SD26790  Bellardia trixago Paul Covel May 1938 Contra Costa Bet. Martenez and Crockett Comment
  UC697191  Berula erecta Mary L. Bowerman 1931-8-29 1031 Contra Costa Mount Diablo, Sheep Camp Spring, by North Road Sheep Camp Spring; Mount Diablo, Sheep Camp Spring Comment
  UC1136356  Beta vulgaris H. S. Yates 1934-9-2 4063 Contra Costa Mt. Diablo 137 Comment
  UCD158697  Beta vulgaris subsp. maritima James A. Neilson Jr. 1972-11-2 3613 Contra Costa Walnut Creek drainage. Elevation estimated in Google Earth by label maker. 1 Comment
  CAS-BOT-BC102083  Bidens frondosa Walter Knight; Irja Knight; John Thomas Howell; E. McClintock; et. al 1978-9-5 3243 Contra Costa Browns Island, Yucca Landin Comment
  JEPS68966  Blennosperma nanum Edward Lee 1935-3-10 1299 Contra Costa Nortonville South watershed of Kirker Creek Comment
  UCR51760  Blennosperma nanum L. S. Rose 1949-3-24 49011 Contra Costa 4 miles south of Byron 8 Comment
  UC565479  Blennosperma nanum var. nanum H. L. Mason 1929-3-15 5045 Contra Costa just s of Nortonville Comment
  UC579840  Blennosperma nanum var. nanum Annetta Carter 1937-3-7 1223 Contra Costa one mile e Danville; Sycamore Valley Comment
  CAS-BOT-BC100701  Blennosperma nanum var. nanum Annetta Carter 1937-3-28 1225 Contra Costa March Creek Road, 15 miles east of Concord 152 Comment
  SEINET1910262  Blennosperma nanum var. nanum Barbara Ertter 1992-1 10908 Contra Costa Byron Springs Road, 4-5 miles south of Junction with J4, near Armstrong Road Comment
  RSA121587  Blepharizonia laxa G. T. Nordstrom 1937-10-28 s.n. Contra Costa 1.6 miles NNE of Somersville 183 Comment
Read comments
Dec 16 2012
  UCD129617  Blepharizonia laxa Robert E. Preston 1996-9-27 1012 Contra Costa NW-facing hillside, 0.5 mile south of Contra Loma Reservoir. 106 Comment
  UCD77424  Blepharizonia plumosa Robert E. Preston 2001-10-7 1777 Contra Costa Black Diamond Mines Regional Park, on w side of Stewartsville Trail, 0.75 mi s of Parking lot at Frederickson Lane trailhead. 152 Comment
Read comments
Mar 14 2018
  SEINET10570457  Bloomeria aurea William H. Brewer 1862-6-19 Brewer 1291 Contra Costa Geological Survey of California, 1860-67. Pacheco Pass, near Camp 77. Comment
  CAS-BOT-BC15964  Boechera breweri subsp. breweri J. W. Congdon 1896-5-8 s.n. Contra Costa Mount Diablo. Comment
  CAS-BOT-BC15958  Boechera breweri subsp. breweri H. E. McMinn 1922-6-2 83 Contra Costa At summit of Mount Diablo - a little north of summit. Comment
  UC2029190  Bolboschoenus maritimus Barbara Ertter with Brad Olson et al. 2000-6-2 17307 Contra Costa Brushy Peal Regional Preserve NE of Livermore Comment
  CAS-BOT-BC31333  Bolboschoenus maritimus Walter Knight; Irja Knight 1979-9-10 3431 Contra Costa In ditch near corner of Moraga Rd and st Marys Road. Moraga. Comment
  JEPS111884  Bolboschoenus robustus D. G. Kelch 2003-8-13 03 .104 Contra Costa Martinez Marsh 0 Comment
  JEPS16063  Bowlesia incana W. L. Jepson 1923-4-22 9867 a Contra Costa Mount Diablo Comment
  RSA721286  Brachypodium distachyon Barbara Ertter, Mary L. Bowerman 1995-5-7 14026 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, along road through annual grassland with scattered blue oak south of Marsh Creek. Road. summit. 305 Comment
  CAS-BOT-BC30261  Brassica nigra Mary L. Bowerman 1938-5-25 3633 Contra Costa North Road 2 miles from North Gate. 182 Comment
  UC691784  Brickellia californica Mary L. Bowerman 1933-9-3 2422 Contra Costa rocky gully on sw side of ridge, e of dry spring and above large flat North Peak (Mount Diablo); , North Peak Comment
  UC2070488  Brickellia californica Barbara Ertter 2002-8-24 18038 Contra Costa Lower Perkins Canyon on NE base of Mount Diablo. Comment
  JEPS100061  Brodiaea elegans G. Smick 2003-6-6 GAS 216 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD164897  Brodiaea elegans subsp. elegans Henry House 1995-5-20 1995- 15 Contra Costa about 1 km west of Walnut Blvd., ca. 0.5 km south of Marsh Creek Rd. 60 Comment
  SBBG117257  Bromus B. Crampton 1960-3-29 5481 Contra Costa corner of Carlson and Lassen Boulevards, El Cerrito Comment
  CAS-BOT-BC149399  Bromus berteroanus Mary L. Bowerman 1933-4-15 1874 Contra Costa Mount Diablo. Canyon south of Arroyo del Cerro. Rocky knoll 250 feet below spring. Comment
  SEINET7297525 Image available Bromus berteroanus Beecher Crampton 1956-1 3415 Contra Costa Oak woodland, foothills, 1/2 mile west of Martinez Comment
  UCD58227  Bromus carinatus P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UC53630  Bromus carinatus var. carinatus Joseph Burtt Davy 1900-3-24 6543 Contra Costa Potrero Comment
  UC697133  Bromus carinatus var. carinatus Mary L. Bowerman 1933-5-2 1963 Contra Costa below Pioneer Camp (Mount Diablo); Mount Diablo 762 Comment
  CHSC116648  Bromus diandrus Lowell Ahart; Josephine Guardino 2016-4-19 20790 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the sides ot the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  UC2028404  Bromus diandrus Barbara Ertter with Christopher Baysdorfer 1998-5-10 16113 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, along Ohlone Trail Comment
  UCD58550  Bromus diandrus A. A. Beetle 1942-3-22 2932 Contra Costa Brooks Island in San Francisco Bay. Comment
  CHSC116659  Bromus hordeaceus Lowell Ahart; Josephine Guardino 2016-4-19 20791 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
  POM300690  Bromus hordeaceus Mary L. Bowerman 1931-5-13 839 Contra Costa Pine canyon floor one mile above the sulphur spring Comment
  UC1131074  Bromus hordeaceus C. M. Belshaw 1936-5-7 2047 Contra Costa 2 mi s of San Ramon 274 Comment
  UC1618047  Bromus hordeaceus Donald G. Nelson 1937-3-30 477 Contra Costa s of Byron (on road to Tracy, along railroad tracks paralleling the highway) Comment
  UC1818908  Bromus hordeaceus Barbara Ertter, Mary Bowerman et al. 1995-5-7 14036 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, grassland flat near ponds. Comment
  UC60206  Bromus hordeaceus Jos. Burtt Davy 1899-4-19 7866 Contra Costa Las Trampas Creek Comment
  UC677560  Bromus hordeaceus P. F. Knowles 1941-1 8710 Contra Costa Briones Hills Comment
  UC697136  Bromus hordeaceus Mary L. Bowerman 1933-5-17 2099 Contra Costa Mount Diablo, branch of Curry Canyon, due s of Olasfsons' barn Curry Canyon; Mount Diablo, Curry Canyon Comment
  CAS-BOT-BC155471  Bromus hordeaceus Mary L. Bowerman 1933-4-15 1870 Contra Costa Mount Diablo. Canyon south of Arroyo del Cerro. Rocky knoll 250 feet below spring. Comment
  UCD58960  Bromus madritensis Beecher Crampton 1966-4-26 7664 Contra Costa Ca. 2.5 miles west of Martinez. On the road to Crockett. Comment
  CAS-BOT-BC162352  Bromus madritensis Mary L. Bowerman 1935-5-16 2991 Contra Costa Mount Diablo. Russelman Park, at end of road. Comment
  CAS-BOT-BC162353  Bromus madritensis Mary L. Bowerman 1935-4-19 2863 Contra Costa Mount Diablo. Near Turtle Rock. 457 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
  UC692338  Bromus trinii Mary L. Bowerman 1935-4-17 2844 c Contra Costa North Road 2 mi from North Gate (immediately e of section line); Mount Diablo, North Road 304 Comment
  CAS-BOT-BC185034  Calamagrostis rubescens Virginia E. Long 1933-6-14 222 a Contra Costa Mount Diablo. Inner Black Hills. 563 Comment
  JEPS99499  Calandrinia breweri Mary Bowerman 1979-5-2 Contra Costa Comment
  JEPS112033  Calandrinia ciliata D. G. Kelch 2003-3-21 03 .71 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  CAS-BOT-BC438364  Calandrinia ciliata Brandegee No date on label s.n. Contra Costa Antioch Comment
  CAS-BOT-BC167286  California macrophylla Brandegee s.n. Contra Costa Antioch Comment
  CAS-BOT-BC492125  Calochortus amabilis I. Williams 1920-4-29 s.n. Contra Costa Mount Diablo 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
  CAS-BOT-BC132497  Calochortus pulchellus R. F. Hoover 1968-5-16 11092 Contra Costa Upper Marsh Creek Comment
  OBI21346  Calochortus pulchellus Robert F. Hoover 1968-5-16 11092 Contra Costa Upper Marsh Creek Comment
  POM153228A  Calochortus pulchellus C. L. Hitchcock 1928-6-5 14 Contra Costa Between Port Costa and Martinez. 18 Comment
Read comments
Feb 14 2017
  UC2028221  Calochortus pulchellus Barbara Ertter with Christopher Baysdorfer 1998-5-10 16125 Contra Costa West side Lime Ridge Open Space northwest of Mount Diablo. Comment
  UC1601667  Calochortus umbellatus Brewer 1890-1 1035 Contra Costa Walnut Creek Comment
  UC691990  Calochortus umbellatus Mary L. Bowerman 1931-4-18 727 Contra Costa at head of ne fork Sycamore Canyon; Mount Diablo Comment
  CDA9096  Calochortus venustus D. G. Kelch 2007-6-3 7 .431 Contra Costa East Bay; Along gated portion of Hampton Rd N of San Pablo Reservoir. Comment
  JEPS61759 Image available Calochortus venustus W. L. Jepson 1918-6-3 7571 Contra Costa near summit Donner Canyon; Mt. Diablo 1066 Comment
  UC2028315  Calochortus venustus Barbara Ertter, Susan D'Alcamo 1998-6-12 16156 Contra Costa North Gate Road on west flank of Mount Diablo, ca 1/2 mile below upper Turtle Rock Ranch buildings. Comment
  CAS-BOT-BC275352  Calycadenia truncata var. truncata Mary L. Bowerman 1931-9-12 1040 Contra Costa Mount Diablo. Mitchell Canyon, spur jutting into W fork 838 Comment
  CAS-BOT-BC224748  Calystegia malacophylla subsp. pedicellata Mary L. Bowerman 1935-6-8 3126 Contra Costa Mount Diablo. Summit 1170 Comment
  CAS-BOT-BC224752  Calystegia malacophylla subsp. pedicellata Paul F. Covel 1940-5-12 1785 Contra Costa Summit Mt. Diablo Comment
  RSA397145  Calystegia malacophylla subsp. pedicellata Anstruther Davidson 1917-07 3251 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
  JEPS125633  Calystegia sepium subsp. binghamiae Daniel Slakey with CNPS Volunteers 2015-9-12 227 Contra Costa Browns Island, northern part of Crooked Slough. Comment
  UC1057486  Calystegia sepium subsp. binghamiae G. Thomas Robbins 1940-5-19 327 Contra Costa San Joaquin River e Antioch; San Joaquin River e of Antioch Comment
  UC1594199  Calystegia sepium subsp. binghamiae Jerry Powell 1991-8-15 1614 Contra Costa Antioch National Wildlife Refuge Comment
  CDA39892  Calystegia sepium subsp. limnophila A. G. Murdock 2004-6-4 321 Contra Costa Carquinez Strait Region; Pecheco Marsh. Comment
  CDA39893  Calystegia sepium subsp. limnophila D. G. Kelch 2004-7-9 4 .289 Contra Costa Carquinez Strait; Crockett; Edwards Creek, immediately below high school. Comment
  CDA39896  Calystegia sepium subsp. limnophila T. C. Fuller 1964-11-6 12807 Contra Costa Northeast side of Bethel Island. 0 Comment
  UC1123589  Calystegia subacaulis C. M. Belshaw 1936-5-9 2076 Contra Costa 2.25 mi e Clayton; Mt. Diablo quad 381 Comment
  UC20452  Camissonia campestris subsp. campestris J. Burtt Davy 1895-4-7 879 Contra Costa Antioch Comment
  RSA454744  Camissonia campestris subsp. campestris H. de Forest 1930-4-6 s.n. Contra Costa [No location information on label.] Comment
  UC2028261  Camissonia hirtella Barbara Ertter 1999-6-12 16719 Contra Costa Knobcone Point Road on south side of Mount Diablo, burned chamissal at head of NE fork of Sycamore Creek. Comment
  RSA41303  Camissonia micrantha Robert F. Hoover 1935-3-10 314 Contra Costa Antioch sand-dunes Comment
  JEPS111561  Camissonia ovata A. G. Murdock 2004-3-19 221 Contra Costa Luzon: Sycamore Ave. just east of Rodeo/Hercules where train crosses Highway 4 (Luzon). Top of ridge to south of road. 60 Comment
  UC635407  Camissoniopsis intermedia H. L. Mason 1929-3-15 5048 Contra Costa Nortonville Comment
  RSA100285  Campanula exigua Mary L. Bowerman 1930-6-14 330 Contra Costa Summit of Mount Diablo 1159 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
  UC1051246  Campanula isophylla N. Floy Bracelin 1942-9-9 2279 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1789104  Campsis radicans Barbara Ertter 1998-5-10 16370 Contra Costa southeast edge of Antioch Marina. Comment
  CHSC21613  Capsella bursa-pastoris Willis Ball 1975-2-23 438 Contra Costa Contra Loma Regional Park. In area #1. Ca. 10 yds e of restroom facility on n side of lake. 30 Comment
  JEPS83131  Capsella bursa-pastoris R. P. Allen 1935-3-15 113 Contra Costa Pittsburg Comment
  CAS-BOT-BC37395  Cardamine californica Robert Francis Hoover 1938-2-21 2754 Contra Costa Point Richmond. 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
  JEPS53386  Cardamine californica J. Burtt Davy 1895-4-13 1006 Contra Costa near Lafayette; near Lafayette 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
  UCD114186  Cardamine californica Morris Halperin 1929-4-21 s.n. Contra Costa St. Mary's College campus. Comment
  UCR17079  Cardamine californica James K. Ryan 1969-3-31 45 Contra Costa Mt. Diablo State Park, 0.25 mi inside S gate entrance at first large turnout on left side of rd, at top of steep hill 701 Comment
  UC2028965  Cardamine californica Barbara Ertter 2003-2-8 18090 Contra Costa Richmond Field Station (UC-Berkeley). Comment
  UC1606309  Cardamine hirsuta Barbara Ertter 1993-2-28 11461 Contra Costa edge Vollmer Peak Trail (Tilden Regional Park in Berkeley Hills, above steam trains); Tilden Regional Park in Berkeley Hills Comment
  UC2032817  Cardamine hirsuta Doran, Andrew Scott 2012-3-20 687 Contra Costa North end of Brooks Island along ridge, cleared area northwest of caretakers residence. Comment
  RSA721865  Cardamine hirsuta Barbara Ertter, Gary Schoolcraft 1996-4-7 14576 Contra Costa Molate Beach Park on San Francisco Bay N of San Rafael Bridge; S end of parking area. Comment
  JEPS100083  Cardamine oligosperma G. Smick 2003-5-30 GAS 200 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2028048  Cardamine oligosperma Barbara Ertter 1998-2-15 15914 Contra Costa Shell Ridge Open Space on northwest base of Mount Diablo, outcrops on north side of Joaquin Ridge south of Indian Creek, +/- wooded. Comment
  CDA3651  Cardaria draba D. G. Kelch, A. G. Murdock 2005-3-25 5 .092 Contra Costa Carquinez Strait Region; Fernandez Ranch. West of Christie Road, south of I-4 (behind golf course) and north of Pinole Peak. Comment
  POM351433  Carduus pycnocephalus B. C. Templeton 1962-6-10 s.n. Contra Costa Mt Diablo. Comment
  CAS-BOT-BC281735  Carduus pycnocephalus Joseph P. Tracy 1934-4-30 13188 Contra Costa Roadside between Moraga and Lafayette 152 Comment
  CAS-BOT-BC281736  Carduus pycnocephalus Paul F. Covel 1938-6-26 s.n. Contra Costa Las Trampas Canyon, behind St. Mary's Comment
  CAS-BOT-BC281804  Carduus tenuiflorus David Keck 1941-6-5 5312 Contra Costa Berkeley Hills, Fish Creek Rd, 0.25 mile W of E portal of Broadway Tunnel 335 Comment
  CAS-BOT-BC19203  Carex barbarae John Thomas Howell 1933-5-14 11236 Contra Costa St. Mary's College. Comment
  CDA33124  Carex barbarae D. G. Kelch, A. G. Murdock 2004-7-9 04 .305-B Contra Costa Carquinez Strait; Alhambra Creek, Martinez, near Muir gravesite, Arroyo del Hambre. Comment
  UC691964  Carex densa Mary L. Bowerman 1935-5-16 3001 Contra Costa Russelman Park road at Gregory Ranch junction Mount Diablo 289 Comment
  UC70611  Carex densa Jos. Burtt Davy 1899-4-19 7843 Contra Costa Glorietta; Inner Coast Range Mountains Comment
  JEPS105721  Carex densa David Gowen 2004-9-13 161 Contra Costa Mt. Diablo State Park. Johnny Walker Spring, which is ca. .2 mile above the junction of Angel Kerley Rd. (fire trail) and North Gate Rd., approx. 2200' elev. Comment
  UC2028541  Carex globosa Barbara Ertter 1998-3-7 15927 Contra Costa Southwest side of Mount Diablo, west end Fossil Ridge Trail. Comment
  CDA32037  Carex gracilior D. G. Kelch 2006-3-18 6 .104 Contra Costa 2 km N-NW of Orinda Village. NW of corner of San Pablo Dam Rd & Bear Valley Rd. 0 Comment
  UC2070640  Carex nudata Barbara Ertter 2002-8-24 18033 Contra Costa Lower Perking Canyon on NE base of Mount Diablo. Comment
  JEPS111620  Carex obnupta D. G. Kelch 2004-7-9 04 .305 Contra Costa Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite 60 Comment
  UC691961  Carex pellita Mary L. Bowerman 1935-5-16 3000 Contra Costa Russelman Park Road at Gregory Ranch junction; Mount Diablo 289 Comment
  UC1795880  Carex praegracilis Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14672 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay; wetlands behind facilities at base of ''D'' road. Comment
  CAS-BOT-BC117548  Carex serratodens Lewis Samuel Rose 1935-5-16 35163 Contra Costa Mt. Diablo. Comment
  JEPS105723  Carex serratodens David Gowen 2004-9-13 159 Contra Costa Mt. Diablo State Park. Maple Spring, which is on the North Gate Rd., approx. 1920' elev. 585 Comment
  UC692013  Carex serratodens Mary L. Bowerman 1932-11-19 1653 Contra Costa Elder Spring Mount Diablo Comment
  CAS-BOT-BC117552  Carex serratodens Miss Mary Leolin Bowerman 1938-5-28 3640 Contra Costa Patens Spring (North Road, 1800 feet). 548 Comment
  POM300642  Carex serratodens Mary L. Bowerman 1938-5-28 3640 Contra Costa Patens Spring (North Road). Mount Diablo. 549 Comment
  UC2028450  Carex serratodens Barbara Ertter with Chris Thayer 1996-10-25 15388 Contra Costa West side of Mount Diablo, South Gate Road just south of junction at Mountain House Creek crossing 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
  UC590537  Carex subbracteata W. H. Brewer 1012 Contra Costa Walnut Creek Comment
Read comments
Oct 23 2009
  UC2028500  Carex subbracteata Barbara Ertter 1999-3-21 16491 Contra Costa NW corner of Miller Knox Regional Shoreline, Protero Hills SW of Richmond Comment
  CAS-BOT-BC116916  Carex subbracteata var. subbracteata G. Thomas Robbins 1959-4-18 3984 Contra Costa Overlooking San Pablo Bay, ca 1/2 mi E of Pt. San Pablo, Richmond. 7 Comment
  JEPS119399  Carex tumulicola J. Greenhouse with A. Doran, D. Kelch, H. Bartosh, J. Game, et al. 2012-3-20 5142 Contra Costa Brooks Island Comment
  RSA0027404  Carex tumulicola Barbara Ertter 1999-7-17 16770 Contra Costa Tilden Regional Park, trail to Jewel Lake paralleling Wildcat Creek, through thick woodland growth. Comment
  JEPS15197  Castilleja attenuata C. M. Belshaw 1936-5-11 2097 Contra Costa 5.25 mi e Danville; Mt. Diablo Quad. 289 Comment
  UC1819018  Castilleja densiflora subsp. densiflora Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14676 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
  CHSC116613  Castilleja exserta subsp. exserta Lowell Ahart; Josephine Guardino 2016-4-19 20779 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  UC691594  Castilleja foliolosa Mary L. Bowerman 1931-4-18 730 Contra Costa basin of ne-fork Sycamore Canyon; Mount Diablo Comment
  RSA0068053  Castilleja foliolosa Katie Gallagher, Nick Jensen 2014-4-26 197 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  CDA41397  Castilleja rubicundula subsp. lithospermoides A. G. Murdock 2003-6-24 114 Contra Costa Carquinez Strait; Near upper trail on north side of Mount Wanda, Martinez. Comment
  JEPS15184  Castilleja rubicundula subsp. lithospermoides C. M. Belshaw 1936-5-11 2095 Contra Costa 5.25 mi e Danville; Mt. Diablo Quad. 289 Comment
  UC691574  Castilleja rubicundula subsp. lithospermoides Mary L. Bowerman 1933-5-11 2081 Contra Costa ridge towards w end Inner Black Hills (on s side); Mount Diablo Comment
  UC64223  Castilleja subinclusa subsp. franciscana H. M. Hall 1901-3-17 Contra Costa Point Richmond; San Francisco Bay Region Comment
  CDA29227  Castilleja wightii D. G. Kelch 2002-6-17 2 .013 Contra Costa Carquinez Strait; Vaca Canyon. 1.5 kilometers east of Pig Sale on Alhambra Valley Road. 0 Comment
  CAS-BOT-BC40485  Caulanthus lasiophyllus Bolander 1863-1-1 368 Contra Costa San Pablo Landing. 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
  CAS-BOT-BC48836  Ceanothus cuneatus Mary L. Bowerman 1932-5-1 1406 Contra Costa Oyster Ridge, outer steep face of Alamo Creek Comment
  CAS-BOT-BC48840  Ceanothus cuneatus D. O. Burge 2007-5-9 DOB 916 b Contra Costa Mount Diablo sState Park, roadside on South Gate Road, 1.5 road miles (2.4 km) north of entrance gate 380 Comment
  POM300720  Ceanothus cuneatus Mary L. Bowerman 1932-9-3 1531 Contra Costa Muir Area, burn (1931) Mt. Diablo Comment
  PASA1643  Ceanothus cuneatus Annetta Carter 1929-3-31 Contra Costa Hills north of Mt. Diablo, near Clayton Comment
  UC1071118  Ceanothus cuneatus var. cuneatus R. W. Lundh 1932-8-25 144 Contra Costa Mt. Diablo. 1 mi s and 1/2 mi w of; Mt. Diablo quad. 731 Comment
  UC692592  Ceanothus cuneatus var. cuneatus Mary L. Bowerman 1932-9-3 1531 Contra Costa Muir Area, Mount Diablo Comment
  UC80011  Ceanothus cuneatus var. cuneatus G. W. Dunn 1892-3-12 Contra Costa Mt. Diablo Comment
  SBBG68364  Ceanothus cuneatus var. ramulosus H. E. McMinn -- Contra Costa Mt Diablo Comment
  UCD166546  Ceanothus oliganthus Dylan O. Burge 2016-2-18 2047 Contra Costa Huckleberry Ridge. 390 Comment
  CAS-BOT-BC51494  Ceanothus oliganthus var. sorediatus C. H. M. 1919-8-24 s.n. Contra Costa Las Trampas Peak Comment
  JEPS42191  Ceanothus oliganthus var. sorediatus W. L. Jepson 1908-4-4 3003 Contra Costa West Branch of San Pablo Creek Berkeley hills Comment
  JEPS42309  Ceanothus oliganthus var. sorediatus H. H. Haworth 1917-5-3 Contra Costa Redwood Peak Oakland Hills Comment
  UC1051344  Centaurea cineraria N. Floy Bracelin 1941-6-8 1384 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS111518  Centaurea melitensis D. G. Kelch 2005-5-13 05 .281 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 66 Comment
  JEPS99540  Centaurea melitensis Mary L. Bowerman 1995-6-4 Contra Costa Mount Diablo, North Gate Rd. Comment
  UC691370  Centaurea melitensis Mary L. Bowerman 1932-11-19 1661 Contra Costa little below junction of pipes from no. 3 and no. 4 club springs Mountain Springs Canyon (Stachys Spring); Mount Diablo, , Stachys Spring Comment
  CDA36467  Centaurium tenuiflorum Ed Swan 2011-8-18 PDR# 1641228 Contra Costa Orinda; Bear Creek Road near Fire Trail 43-4. 0 Comment
  UC2042753  Centaurium tenuiflorum Barbara Ertter with Brad Olson and Lynne Hosley 1993-11-14 12320 Contra Costa Skyline Trail in East Bay Hills west of Orinda, above Caldecott Tunnel between Fish Ranch Road and Roundtop. Comment
  UCD121507  Centaurium tenuiflorum Ann F. Johnson 1978-6-22 s.n. Contra Costa Edge of the San Joaquin River at the Antioch Dunes on Pacific Gas and Electric Co. property, 4 miles east of the town of Antioch. Comment
  CDA6636  Centranthus ruber D. G. Kelch, A. G. Murdock 2004-6-19 4 .282 Contra Costa Carquinez Strait Region; Crockett - Tormey Headlands. Along railroad tracks west of Carquinez Bridge Crockett (Valona). Comment
  CAS-BOT-BC288540  Centromadia fitchii John Thomas Howell 1930-9-28 5497 Contra Costa 6.3 miles from Byron on the Marsh Creek Rd Comment
  UC1357605  Centromadia parryi subsp. congdonii R. F. Hoover 1966-8-31 9943 Contra Costa e Danville Comment
  CAS-BOT-BC288879  Centromadia parryi subsp. congdonii David D. Keck 1933-11-2 2610 Contra Costa San Ramon, Cow Creek Canyon Rd, 0.5 mile from turnoff Comment
  CAS-BOT-BC288881  Centromadia parryi subsp. congdonii David D. Keck 1933-11-2 2611 Contra Costa 2.7 miles N of Walnut Creek Comment
  JEPS25331  Centromadia pungens subsp. pungens Andrew P. Nelson 1961-4-6 713 Contra Costa about 3 mi s Byron (on Byron Road, near Southern Pacific Railroad crossing) Comment
  UC30957  Centromadia pungens subsp. pungens Jos. Burtt Davy 1900-6-7 6661 Contra Costa between Martinez and Pacheco Comment
  CAS-BOT-BC279180  Centromadia pungens subsp. pungens John Thomas Howell 1929-9-21 4395 Contra Costa Marsh Creek Road 3.5 miles sw. of Brentwood Comment
  CAS-BOT-BC279184  Centromadia pungens subsp. pungens H. M. Hall 1930-8-7 12847 Contra Costa Byron Hot Springs Comment
  CAS-BOT-BC279188  Centromadia pungens subsp. pungens David D. Keck 1933-11-2 2617 Contra Costa 2.4 mi. E. of Antioch on road to Oakley, N. Contra Costa County Comment
  CAS-BOT-BC279199  Centromadia pungens subsp. pungens A. D. E. Elmer 1903-5-1 4392 Contra Costa Walnut Creek Comment
  CAS-BOT-BC222902  Cephalanthus occidentalis Virginia I. Dains; Walter Knight 1986-8-8 5465 Contra Costa Jct Rock S1 & Werner Cut Comment
  CAS-BOT-BC137008  Cercocarpus betuloides var. betuloides L. R. Abrams 1910-10-8 4355 Contra Costa Mt. Diablo Summit 1158 Comment
  CAS-BOT-BC284217  Chaenactis glabriuscula var. megacephala A. A. Heller 1908-4-16 8894 Contra Costa East of Antioch 22 Comment
  CDA4796  Chamaesyce maculata D. G. Kelch, A. G. Murdock 2005-6-27 5 .391 Contra Costa Carquinez Strait; 6th Street at Lillian Street, Crockett. 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
  UC692713  Chamaesyce ocellata Mary L. Bowerman 1930-10-19 494 Contra Costa little below rd junction West rd Comment
  JEPS9018  Chamaesyce ocellata subsp. ocellata W. L. Jepson 1901-10-11 13926 Contra Costa Mount Diablo Comment
  JEPS111956  Chamaesyce serpens D. G. Kelch 2004-9-2 04 .343 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Martinez (Ozol) 22 Comment
  UC1328153  Chenopodium album Olive Dyer 1936-8-29 4 Contra Costa 1 1/2 mi below San Pablo Ave.; Wildcat Creek Comment
  UC1328154  Chenopodium album Olive Dyer 1936-9-5 28 w Contra Costa 1/2 mi above San Pablo Ave.; Wildcat Creek Comment
  UC2028149  Chenopodium californicum Barbara Ertter 1998-4-4 15964 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, and Indian Valley School. Comment
  JEPS111800  Chenopodium murale D. G. Kelch 2004-7-9 04 .308 Contra Costa Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite 60 Comment
  CAS-BOT-BC252679  Chorizanthe membranacea L. R. Abrams 1921-5-25 8009 Contra Costa Nera summit of Mt. Diablo Comment
  UC52583  Chorizanthe membranacea State Survey 1862-5-17 1104 Contra Costa n Mt. Diablo; n of Mt. Diablo Comment
  UCSB27371  Chrysolepis chrysophylla Havlik, Neil 1969-7-18 Contra Costa on the ridgetop of Moraga Ridge, east of Oakland 335 Comment
  JEPS38084  Chrysolepis chrysophylla var. minor W. L. Jepson 1943-10-13 27500 Contra Costa Moraga Ridge Comment
  JEPS97617  Chrysolepis chrysophylla var. minor R. D. Stone 1980-7-13 265 Contra Costa NE of intersection of Skyline Blvd. and Snake Rd. Huckleberry Trail; Oakland Hills, near Alameda-Contra Costa county line Comment
  UC1041102  Cicuta maculata var. bolanderi J. W. Congdon 1893-7-29 Contra Costa Martinez Comment
  RSA0070598  Cirsium cymosum Mary L. Bowerman 1935-5-22 3041 a Contra Costa Eagle point ridge, canyon at north end which heads into saddle west of Twin Peaks. 305 Comment
  UC691378  Cirsium cymosum var. cymosum Mary L. Bowerman 1935-5-22 3041 a Contra Costa Eagle Point Ridge, canyon at n e of which heads into saddle w of Twin Peaks Mount Diablo 304 Comment
  POM352184  Cirsium occidentale var. venustum B. C. Templeton 1962-6-10 s.n. Contra Costa Mt Diablo. Comment
  UC691390  Cirsium occidentale var. venustum Mary L. Bowerman 1930-6-10 295 Contra Costa near Mineral (on North Road); Mount Diablo 396 Comment
  CAS-BOT-BC162631  Clarkia R. D. Stone 1983-5-17 509 Contra Costa On ridge at northe end of Walker Ranch, near Alameda County line ca. 9 mi. NE of Livermore and 1 mi. NNE of Brushy Peak, upper Kellogg Creek drainage 342 Comment
  CAS-BOT-BC162564  Clarkia affinis Mary L. Bowerman 1935-5-22 3041 Contra Costa Eagle Point Ridge, canyon at north end which heads into saddle west of Twin Peaks - Mount Diablo 304 Comment
  JEPS111563  Clarkia affinis A. G. Murdock 2004-5-28 273 Contra Costa Pinole Peak 405 Comment
  UC2028174  Clarkia affinis Barbara Ertter 1998-5-3 16048 Contra Costa Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. Comment
  UC2028321  Clarkia affinis Barbara Ertter, Susan D'Alcamo 1998-6-12 16155 Contra Costa North Gate Road on west flank of Mount Diablo near Buckle Point. Comment
  UC2070450  Clarkia biloba Barbara Ertter 2002-6-22 17825 Contra Costa Donner Basin on north side of Mount Diablo, Falls Loop Trail south of Wild Oat Canyon. Comment
  UCD21831  Clarkia biloba C. Thayer 1994-8-1 s.n. Contra Costa West side of Lafayette Ridge, Lafayette. Comment
  JEPS111565  Clarkia biloba subsp. biloba D. G. Kelch 2000-5-22 00 .142 Contra Costa Crockett - Eckley North-facing railroad cuts west of Bull Valley Staging Area 7 Comment
  CAS-BOT-BC163606  Clarkia biloba subsp. biloba C. L. Hitchcock 1928-6-5 13 Contra Costa Between Porta Costa and Martinez, 1 1/2 mile from Port Costa 40 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
  JEPS43618  Clarkia concinna subsp. concinna W. L. Jepson 1923-6-10 9987 Contra Costa Upper Marsh Creek Mt. Diablo Comment
  UC692495  Clarkia concinna subsp. concinna Mary L. Bowerman 1931-5-21 879 Contra Costa Mount Diablo, Curry Cave Point Trail Curry Cave Point Trail; Mount Diablo, Curry Cave Point Trail 350 Comment
  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
  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
  UCSC008679  Clarkia purpurea subsp. purpurea Randall Morgan 1999-6-7 3535 B Contra Costa Byron 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
  UC692487  Clarkia purpurea subsp. quadrivulnera Mary L. Bowerman 1930-6-10 297 Contra Costa Oak Knoll Picnic Grounds Mount Diablo Comment
  UC692489  Clarkia purpurea subsp. quadrivulnera Mary L. Bowerman 1931-5-16 859 Contra Costa w flank Ransom Point Ridge (Summit); Mount 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
  POM300657  Clarkia purpurea subsp. quadrivulnera Mary L. Bowerman 1942-5-24 3840 Contra Costa Mount Diablo: Jim White Trail to Deer Flat; west slope of Deer Ridge 854 Comment
  UC1196998  Clarkia rubicunda Joseph P. Tracy 1935-7-6 14039 Contra Costa Moraga 152 Comment
  UC2012964  Clarkia rubicunda Barbara Ertter with Travis Columbus 1990-6-10 9103 Contra Costa NE corner of Briones Regional Paark, Briones Hills W of Pleasant Hill, jct of Briones Crest and Table Top trails E of Briones Peak. Comment
  JEPS100002  Clarkia unguiculata G. Smick 2003-5-20 GAS 194 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC165455  Clarkia unguiculata Mary L. Bowerman 1930-6-3 235 Contra Costa North Road 1.9 miles from North Gate 167 Comment
  UC56201  Claytonia exigua subsp. exigua H. M. Hall 1901-4-5 1759 Contra Costa Mt. Diablo; San Francisco Bay Region 1158 Comment
  UC692552  Claytonia exigua subsp. glauca Mary L. Bowerman 1933-5-4 1998 Contra Costa e end Fossil Ridge; Mount Diablo Comment
  JEPS43278  Claytonia gypsophiloides Edw. L. Greene Jun 1892 Contra Costa Mount Diablo Comment
  UC7871  Claytonia gypsophiloides Edw. L. Greene Jun 1892 Contra Costa Mount Diablo Comment
  CAS-BOT-BC439440  Claytonia parviflora subsp. parviflora John Thomas Howell 1933-5-14 11252 Contra Costa Hills east of St. Mary's College Comment
  UC1745428  Claytonia parviflora subsp. parviflora Annetta M. Carter, Leo Bowerman 1935-6-1 870 Contra Costa Mt. Diablo. Main ridge running W from peak. 975 Comment
  UC692653  Claytonia parviflora subsp. parviflora Mary L. Bowerman 1933-5-3 1967 Contra Costa Mountain Springs Canyon Mount Diablo (just below the deer trough (Pioneer Road)) Comment
  RSA469286  Claytonia perfoliata Mark Morris 14913 Contra Costa Mt. Diablo. Comment
  JEPS112035  Claytonia perfoliata subsp. perfoliata D. G. Kelch 2003-3-21 03 .54 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  CAS-BOT-BC91357  Clematis lasiantha V. Rattan 1883-4-1 s.n. Contra Costa Martinez. 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
  JEPS7320  Collinsia heterophylla Mary L. Bowerman 1935-3-16 2739 Contra Costa Mount Diablo, e fork of Arroyo del Cerro Arroyo del Cerro; Mount Diablo, Arroyo del Cerro 262 Comment
  UC1301183  Collinsia heterophylla Helen K. Sharsmith 1962-4-18 4949 Contra Costa vicinity of Martinez (near McEwen Road); San Francisco Bay Region 106 Comment
  UC1818904  Collinsia heterophylla Barbara Ertter, Mary Bowerman 1994-6-19 12852 a Contra Costa Mt. Diablo State Park east of Walnut Creek; scrub oak thicket north of road, north of lower summit parking lot, next to drainage on north facing slope. Comment
  UC691654  Collinsia heterophylla Mary L. Bowerman 1931-4-18 719 Contra Costa Mount Diablo, Sycamore Canyon Sycamore Canyon; Mount Diablo, Sycamore Canyon 335 Comment
  UCSC006563  Collinsia heterophylla Randall Morgan 1988-4-29 1152 Contra Costa NW slope of Twin Pks, Mt. Diablo Comment
  JEPS3891  Collinsia sparsiflora var. collina Lauramay Tinsley 1929-3-27 Contra Costa Mount Diablo Comment
  UC1795634  Collinsia sparsiflora var. collina Barbara Ertter, Brad Olson 1992-4-13 10951 Contra Costa Mount Diablo State Park, Knobcone Point Road E of Curry Point 518 Comment
  JEPS6266  Collinsia sparsiflora var. collina E. W. Hicks 1917-3-24 108 Contra Costa foot of W slope of Mount Diablo 304 Comment
  UC2027814  Collinsia sparsiflora var. collina Barbara Ertter with Stu Garrett 1997-3-29 15530 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  JEPS100146  Collinsia sparsiflora var. sparsiflora G. Smick 2003-3-25 GAS 97 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2028312  Collinsia tinctoria Barbara Ertter, Susan D'Alcamo 1998-6-12 16164 Contra Costa North Peak Trail from Devil's Elbow on SE side of Mount Diablo summit. Comment
  JEPS75520  Conium maculatum P. F. Yorks 1974-5-19 159 A Contra Costa 1.4 km s of Bear Creek Road (n of Briones Reservoir, on Hampton Road in Hampton Road Natural Preserve); Hampton Road Natural Preserve 180 Comment
  UC2042954  Convolvulus arvensis Barbara Ertter with David Gowen and Mike Park 2004-6-13 18375 Contra Costa Black Diamond Mines Regional Preserve, near pond on south branch of Old Homestead Loop Trail. Comment
  JEPS111678  Conyza bonariensis D. G. Kelch 2003-8-13 03 .119 Contra Costa Martinez - Train Station 2 Comment
  CAS-BOT-BC285921  Conyza bonariensis R. E. Frenkel 1963-8-18 261 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  CDA7454  Conyza sumatrensis D. G. Kelch, A. G. Murdock 2003-8-13 3 .119 Contra Costa Carquinez Strait; Martinez - Train Station Comment
  JEPS78633  Cordylanthus mollis subsp. mollis Walter Knight and Neal Havlik 1979-10-7 3415 Contra Costa in marsh along tidal inlet Point Pinole Regional Shoreline (e end of shoreline) Comment
  JEPS95193  Cordylanthus mollis subsp. mollis Jake Ruygt 1993-9-3 Contra Costa w of Hastings Slough (Concord Naval Weapons Station) Comment
  JEPS74986  Cordylanthus nidularius T. I. and F. M. Chuang 1975-6-29 7517 Contra Costa NE of Deer Flat; Mt. Diablo Comment
  SEINET12269039  Cordylanthus pilosus M. T. Doutt 1930-1 88 Contra Costa Marsh Creek Comment
  POM181454  Cornus californica I. L. Wiggins 1930-4-18 4593 Contra Costa East end of Jersey Island. Comment
  CAS-BOT-BC209750  Cornus glabrata V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Comment
  CAS-BOT-BC209592  Cornus sericea Barrett Anderson 1987-4-30 3489 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD 125 Comment
  CAS-BOT-BC210452  Cornus sericea subsp. occidentalis John Thomas Howell 1925-11-7 1559 Contra Costa San Leandro Canyon near Canyon Station Comment
  JEPS50136  Cornus sericea subsp. sericea W. L. Jepson 1914-10-31 6212 Contra Costa Oakland Hills, Moraga Ridge Comment
  UC407391  Cornus sericea subsp. sericea Ira L. Wiggins 1930-4-18 4593 Contra Costa levee e. end Jersey Isl. Comment
  UCR263555  Coronopus didymus Barbara Ertter 1990-5-15 8991 Contra Costa San Francisco Bay Region, South El Cerrito, north foot of Albany Hill at end of Yosemite Avenue cul-de-sac 4 Comment
  RSA666415  Cortaderia jubata Barbara Ertter 1991-9-28 10854 Contra Costa [El Cerrito.] Comment
  CDA37420  Cortaderia selloana D. G. Kelch, Mike Perlmutter 2011-9-23 11 .751 Contra Costa Immediately north of Discovery Bay. Comment
  CAS-BOT-BC169517  Corylus cornuta subsp. californica Barrett Anderson 1987-4-29 3477 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD. 125 Comment
  UC1795664  Cotula australis Barbara Ertter, Mary Bowerman et al. 1995-5-7 14055 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, road behind houses traversing north facing slope, mixed forest with much undergrowth. Comment
  JEPS37545  Cotula coronopifolia R. F. Hoover 1935-3-10 302 Contra Costa Nortonville Comment
  CAS-BOT-BC291337  Cotula coronopifolia Walter Knight; et al 1979-4-13 3359 Contra Costa Point Emmet, Browns Island Comment
  PASA938  Cotula coronopifolia Annetta Carter 1929-3-31 Contra Costa Near Clayton. Hills north of Mt. Diablo Comment
  RSA721594  Crassula aquatica Mary L. Bowerman 1975-9-14 s.n. Contra Costa Mount Diablo. Comment
  UC692556  Crassula connata var. subsimplex Mary L. Bowerman 1931-3-21 586 Contra Costa Sycamore Canyon Mt. Diablo, Sycamore Canyon 335 Comment
  JEPS25357  Crassula solieri Rimo Bacigalupi with Paul C. Hutchison and John Weiler 1959-3-19 6968 Contra Costa 1 mi. s.e. Byron (fields e. of <Bryon> rd.) 6 Comment
  UC2028043  Crassula tillaea Barbara Ertter 1998-3-1 15926 Contra Costa Diablo Foothills Regional Park, Ridge Trail on ridge east of Old Borges Ranch. Comment
  UC2029040  Crassula tillaea Barbara Ertter 2000-3-30 16900 Contra Costa North base of Mount Diablo, Mitchell Canyon trailhead. Comment
  RSA292977  Cressa truxillensis Reino Alava 1957-5-20 880 Contra Costa About one mile south of Byron. Comment
  UC1121528  Crocanthemum scoparium var. vulgare R. W. Lundh Contra Costa San Francisco Quadrangle Comment
  UC692624  Crocanthemum scoparium var. vulgare Mary L. Bowerman 1931-12-17 1072 Contra Costa e of, s face Rock Canyon; Mount Diablo, Fossil Ridge, Dan Cook Ridge Comment
  UC30123  Croton californicus Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  POM194216  Croton californicus J. T. Howell 1926-12-27 2273 Contra Costa 1.5 miles s. of Oakley. Comment
  RSA721593  Crypsis schoenoides Mary L. Bowerman 1975-9-14 s.n. Contra Costa Mount Diablo. Hidden Pond Comment
  UCD59829  Crypsis schoenoides G. F. Hrusa; D. Crowe, R. York 1998-7-17 14718 Contra Costa Sacramento-San Joaquin river delta. East end of Dow Chemical property. 12 Comment
  RSA0025135  Crypsis schoenoides Peter Rubtzoff 1968-9-18 5964 Contra Costa North Gate Road, ca. 5 miles northwest of Mt. Diablo State Park north entrance. Comment
  UC2027971  Crypsis vaginiflora Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15659 Contra Costa North base of Mount Diablo, pond on Three Springs Road. Comment
  UC691350  Cryptantha clevelandii Mary L. Bowerman 1933-5-18 2129 Contra Costa Southwest of Blackberry Spring Comment
  RSA0029675  Cryptantha corollata 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, steep rocky S-facing bowl. 1037 Comment
  UC691337  Cryptantha decipiens Mary L. Bowerman 1932-4-16 1345 Contra Costa Eagle Point Comment
  JEPS67586  Cryptantha flaccida W. L. Jepson May 22 1891-May 23 1891 21115 Contra Costa Mt. Diablo Comment
  JEPS99572  Cryptantha flaccida Mary Bowerman 1991-5-21 Contra Costa Mount Diablo, by Jim White Trail [Deer Flat Rd.] Comment
  UC691402  Cryptantha flaccida Mary L. Bowerman 1933-5-2 1955 Contra Costa below Pioneer Camp; Mount Diablo 762 Comment
  POM226201  Cryptantha flaccida Lincoln Constance, Carl Sharsmith, H. S. Reed 1940-4-27 2573 Contra Costa Pine Canyon, base of Mt Diablo 305 Comment
  UC691633  Cryptantha micromeres Mary L. Bowerman 1933-4-22 1901 Contra Costa w of Cave Point; Mount Diablo, Inner Black Hills Comment
  UC691403  Cryptantha microstachys Mary L. Bowerman 1934-4-28 2546 Contra Costa w end Oyster Ridge; Mount Diablo 457 Comment
  UC691358  Cryptantha muricata Mary L. Bowerman 1931-5-7 808 Contra Costa North Peak Mount Diablo Comment
  UC763023  Cryptantha nevadensis var. rigida R. F. Hoover 1938-5-4 3348 Contra Costa Peak E of Tassajero Creek 762 Comment
  UC691339  Cryptantha torreyana Mary L. Bowerman 1930-6-10 299 Contra Costa Mount Diablo Comment
  UC1795800  Cryptantha torreyana Barbara Ertter, Mary L. Bowerman 1994-6-19 12846 a Contra Costa Mt. Diablo State Park east of Walnut Creek; lower Summit Parking Lot, opening on North side, 1127 Comment
  UC691345  Cryptantha torreyana Mary L. Bowerman 1933-5-22 2164 Contra Costa near saddle just west of Cave Point Comment
  RSA216774  Cuscuta californica Robert F. Hoover 1969-8-25 11565 Contra Costa Raymond Road and Ames Street, Livermore Valley Comment
  CDA33352  Cuscuta japonica Niang/Slattengreen 2008-8-2 PDR# 1454024 Contra Costa El Sobrante; 5737 Skyview Place (near Richmond city limits?) 0 Comment
  CDA33483  Cuscuta japonica Fonseca/Yost 2008-11-2 PDR# 1503841 Contra Costa San Pablo; 2336 Shawn Dr. 0 Comment
  CDA31062  Cuscuta subinclusa D. G. Kelch 2006-8-11 6 .374 Contra Costa Carquinez Strait.; Top of Edward s Canyon. Crockett. Comment
  UC562483  Cuscuta subinclusa Joseph P. Tracy 1932-9-10 10789 Contra Costa Franklin Canyon 152 Comment
  UC562677  Cuscuta subinclusa Joseph P. Tracy 1932-9-10 10789 Contra Costa Franklin Canyon 152 Comment
  UC2028562  Cuscuta subinclusa Barbara Ertter with Mary Bowerman 1996-11-1 15409 Contra Costa North base of Mount Diablo, south end of Hetherington Trail at Donner Creek crossing. Comment
  CDA6262  Cymbalaria muralis D. G. Kelch, A. G. Murdock 2005-5-23 5 .376 Contra Costa Carquinez Strait Region; Crockett - Crolona Heights. 6th Street at Lillian Street, Crockett. Comment
  HSC101961  Cynoglossum grande Nikolaus Gillen, Michelle Bihler 2014-3-20 13 Contra Costa Mount Diablo State Park. Eagle Peak Trail. 649 Comment
  UC1819037  Cynosurus echinatus Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14245 Contra Costa South side Mount Diablo, Sloan Road between Curry Point and Curry Canyon, roadside in partial shade of oak forest on north-facing slope. 487 Comment
  UCD161870  Cyperus James A. Neilson Jr. 1972-10-22 s.n. Contra Costa Contra Costa County. Lower Pine Creek. (Exact location unknown. Coordinates estimated by label maker.) Comment
  SEINET3840900  Cyperus difformis Unknown 2006-9-15 6 .474 Contra Costa Martinez, Shell Avenue, between Pine Street and Harborview Drive 60 Comment
  CAS-BOT-BC114619  Cyperus eragrostis Walter Knight; Joanne Dean 1978-8-14 3150 Contra Costa Browns Island Comment
  SEINET10551690  Cyperus eragrostis Thomas B. Croat 1966-6-18 Croat 1992 Contra Costa Frank's Tract, Bethel Island; 7 mi W of Oakley, lakeside and marsh habitats. Comment
  SEINET11752107  Cyperus eragrostis Unknown 1940-1 90 Contra Costa banks at upper end of San Leandro Lake near mouth of Redwood Creek 130 Comment
  UC1819043  Cyperus eragrostis Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14235 Contra Costa South side Mount Diablo, Sheepherder Springs complex 1/2 mile north of Curry Point, wet ground in grassland. 487 Comment
  SEINET3909823  Cyperus niger Louis 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.; 0 Comment
  UC692656  Cypselea humifusa Mary L. Bowerman 1935-9-13 3337 Contra Costa Mount Diablo, Hidden Pond Hidden Pond; Mount Diablo, Hidden Pond Comment
  UC1607705  Cystopteris fragilis Barbara Ertter, Lynne Hosley 1993-4-17 11514 Contra Costa ca. 10 air mi n Livermore (on hills in lee of Mt Diablo, along Coyote Trail); , Morgan Territory Comment
  UC62648  Cystopteris fragilis Marshall A. Howe 1896-2-29 Contra Costa Mitchell Canyon; Mt. Diablo Comment
  JEPS107132  Cytisus scoparius Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14678 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay, northeast corner of area. Comment
  JEPS100018  Dactylis glomerata S. O'Neil 2003-5-8 SEO 33 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS21826  Danthonia californica Louise Elsenius 1958-5-17 6 Contra Costa ne Terrace-Bates intersection; El Cerrito 60 Comment
  CDA1575  Danthonia californica var. californica D. G. Kelch 2002-5-24 2 .02 Contra Costa Carquinez Strait; Crockett. On hill S of San Pablo Ave ~0.4 miles W of Carquinez Bridge. Comment
  UC2029145  Datura stramonium Barbara Ertter 1999-8-21 16790 Contra Costa Lower Mitchell Canyon Road on NW base of Mount Diablo. Comment
  JEPS100136  Daucus pusillus G. Smick 2003-5-13 GAS 188 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS20071  Deinandra corymbosa Peter H. Raven 1957-7-5 11052 Contra Costa tip of Point Isabel Point Isabel Comment
  UCD35140  Deinandra corymbosa Beecher Crampton 1950-6-20 596 Contra Costa Richmond Comment
  UCD36025  Deinandra corymbosa Beecher Crampton 1949-6-5 470 Contra Costa along Highway 40, Pinole to San Pablo, above Garrity Creek, on top of West Hills. 30 Comment
  CAS-BOT-BC294025  Deinandra kelloggii James I. McMurphy 1909-5-21 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC294026  Deinandra kelloggii H. M. Hall 1930-6-18 12793 Contra Costa Stockton Ranch, south of Antioch Comment
  CAS-BOT-BC291809  Deinandra lobbii David D. Keck 1933-11-2 2615 Contra Costa 1 mi. E. of Nichols, N. Contra Costa County Comment
  CDA933  Delphinium californicum D. G. Kelch 2005-6-14 5 .335 Contra Costa East Bay; San Pablo. North Alvarado Park, south of San Pablo Dam Rd. Comment
  RSA400096  Delphinium californicum Thekla Mohr 1917-07 3245 Contra Costa Mount Diablo Comment
  UCD95636  Delphinium californicum P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  CAS-BOT-BC9611  Delphinium californicum Mrs. E. C. Van Dyke 1931-4-1 s.n. Contra Costa Cypress Ridge, above Livermore Comment
  CAS-BOT-BC10308  Delphinium hesperium Alice Eastwood 1915-5-30 4439 Contra Costa Mt. Diablo Comment
  RSA398649  Delphinium hesperium E. E. Stanford 1930-5-24 1512 Contra Costa Marsh Creek Canyon. Comment
  UC13984  Delphinium hesperium subsp. pallescens Chesnut and Drew 1889-4-17 Contra Costa Antioch Comment
  LA207541  Delphinium hesperium subsp. pallescens H. Lewis; Carl Epling 1944-5-6 sn Contra Costa 1.2 mi. S of Marsh Creek Road on Beck Road to Livermore Comment
  LA207544  Delphinium hesperium subsp. pallescens Lewis; Epling 1947-5-4 702 Contra Costa Curry Creek Park Road, 1 mi. W of Marsh Creek road Comment
  POM203038  Delphinium hesperium subsp. pallescens J. T. Howell 1934-4-8 11824 Contra Costa South of Antioch Comment
  UC101573  Delphinium hesperium subsp. pallescens Katharine Brandegee 1907-5-3 Contra Costa bet. Antioch and Marsh Creek Comment
  UC691950  Delphinium nudicaule Mary L. Bowerman 1933-6-14 2284 Contra Costa bottom of second gully w north spur; Mount Diablo, Inner Black Hills Comment
  UCSC000276  Delphinium nudicaule W. E. Fair 1929-3-22 s.n. Contra Costa Mount Diablo Comment
  JEPS21836  Delphinium patens Bryce G. Decker 1958-4-20 43 Contra Costa hillside meadow above 60 Oak Drive; Orinda Comment
  CAS-BOT-BC116451  Delphinium patens subsp. patens H. L. Mason; Robert Ornduff 1957-4-11 10620 Contra Costa Curry Canyon 3.4 miles s. of Recreation Ground Comment
  UC692138  Delphinium patens subsp. patens Mary L. Bowerman 1931-3-21 584 Contra Costa w-facing slope Mount Diablo, Sycamore Canyon Comment
  UC9157  Delphinium patens subsp. patens Harley P. Chandler 1901-4-5 974 Contra Costa Mount Diablo Comment
  CAS-BOT-BC116461  Delphinium patens subsp. patens J. T. Howell 1931-3-10 5758 Contra Costa 7 miles east of Clayton, Mt. Diablo region Comment
  CAS-BOT-BC17042  Delphinium recurvatum C. Epling; G. Miles 1945-3-23 542 Contra Costa 5 miles west of Tracy-Byron Road on road to Byron Hot Springs. Comment
  RSA148057  Delphinium recurvatum C. Epling 1945-3-23 542 Contra Costa 5 miles west of Tracy-Byron road on road to Byron Hot Springs Comment
Read comments
Aug 17 2011
  CAS-BOT-BC11025  Dendromecon rigida Howard E. McMinn 1922-5-30 30 Contra Costa Crest of Moraga Ridge Comment
  JEPS51668  Dendromecon rigida H. H. Haworth 1917-3-3 Contra Costa Maraga Ridge Comment
  CDA9487  Deschampsia danthonioides D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .212 Contra Costa Byron Airport. Comment
  CAS-BOT-BC192675  Deschampsia danthonioides Walter Knight; Irja Knight; Mary L. Bowerman 1969-6-4 2621 Contra Costa 100 yds west of Chase Pond. Mt. Diablo 554 Comment
  POM212448  Dicentra chrysantha Joseph A. Ewan 1933-10-15 8030 Contra Costa South slope of Mt. Diablo 1067 Comment
  UC64062  Dichelostemma capitatum Harley P. Chandler 1901-3-22 854 Contra Costa near Martinez; San Francisco Bay Region Comment
  UC72521  Dichelostemma capitatum Harley P. Chandler 1901-3-22 880 Contra Costa Port Costa Comment
  CAS-BOT-BC500090  Dichelostemma capitatum Alice Eastwood 1921-4-10 10195 Contra Costa Willows Comment
  JEPS100060  Dichelostemma capitatum subsp. capitatum G. Smick 2003-2-20 GAS 45 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS112500  Dichelostemma congestum D. G. Kelch 2004-4-11 04 .71 Contra Costa Crockett - Bull Valley. EBRPD. Between Crockett and Port Costa 25 Comment
  RSA721369  Dichondra donelliana Barbara Ertter, Gary Schoolcraft 1996-4-7 14574 Contra Costa Pont San Pablo in west Richmond. Comment
  UC1795853  Dichondra donelliana Barbara Ertter, Gary Schoolcraft 1996-4-7 14574 Contra Costa Point San Pablo in west Richmond, crest of road to yacht harbor, coastal grassland along ridge, scraped roadbed to tower. Comment
  UC2027848  Digitaria sanguinalis Barbara Ertter with Mary Bowerman 1996-11-1 15400 Contra Costa North base of Mount Diablo, near Donner Canyon trailhead at end of Regency Drive. Comment
  CHSC39486  Diplacus aurantiacus Tyler Williams 1984-4-18 24 Contra Costa Ca. 20 yd nw of Bridal Nook Picnic Area on e side of South Park Rd., in Mt. Diablo State Park. 533 Comment
  CAS-BOT-BC153952  Diplacus rattanii Alice Eastwood 1915-5-30 4542 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC153953  Diplacus rattanii Mary L. Bowerman 1935-6-1 3111 Contra Costa Largest ridge between Ransom Point ridge and Mitchell-Pine divide 1082 Comment
  CHSC22236  Dirca occidentalis Robert A. Schlising 1962-2-21 2079 Contra Costa Berkeley-Oakland hills of westernmost part of county. 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
  UC1084426  Dirca occidentalis G. Thomas Robbins 1940-3-10 274 Contra Costa n slope Grizzly Peak; Berkeley Hills Comment
  UC552357  Dirca occidentalis Arthur Cobbledick 1936-3-23 Contra Costa Wildcat Canyon Comment
  UC581346  Dirca occidentalis Helen K. Sharsmith 1932-9-18 50 Contra Costa head of Wildcat Canyon Berkeley Hills (streamside) 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
  UC1300913  Disporum hookeri Helen K. Sharsmith 1963-3-3 5184 Contra Costa e of St. Mary's College near Moraga (Las Trampas Canyon); San Francisco Bay Region, Las Trampas Canyon 259 Comment
  JEPS128778  Dittrichia graveolens Kevin Hintsa 1997-9-30 Contra Costa Mount Diablo State Park, Live Oak Campground. Comment
  UC1123279  Dodecatheon clevelandii subsp. patulum R. C. Wilson 1935-2-26 110 Contra Costa 3/4 mi sw Somersville; Mt. Diablo Quad., sw of Somersville Comment
  JEPS112045  Dodecatheon hendersonii D. G. Kelch 2003-3-21 03 .52 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  SBBG5600  Dodecatheon hendersonii J. M. Tucker 1946-3-24 1387 Contra Costa hills between Nortonville and Somersville Comment
  UC1046584  Dodecatheon hendersonii Alex D. Hawkes and R. Bacigalupi 1951-4-22 4777 Contra Costa State Rd. #4 near Mt. Diablo (along Marsh Creek); , near Mt. Diablo Comment
  JEPS5033  Downingia insignis Ira L. Wiggins 1930-4-17 4570 Contra Costa 0.25 mi s Byron Comment
  JEPS65183  Downingia insignis L. R. Heckard 1971-4-15 2484 Contra Costa s of Byron (at intersection of Holey Road) Comment
  SEINET3147636  Downingia insignis L. S. Rose 1940-4-30 40256 Contra Costa 6 mi S of Antioch 30 Comment
  UC765619  Downingia insignis R. F. Hoover 1937-5-14 2117 Contra Costa Bryon Hot Springs Comment
  RSA97189  Downingia insignis J. T. Howell 1953-4-26 28935 Contra Costa Between Byron and Byron Hot Springs. Comment
  SEINET3147638  Downingia ornatissima L. S. Rose 1940-4-30 40258 Contra Costa 4 mi S of Antioch 30 Comment
  JEPS14440  Downingia pulchella W. L. Jepson May 23 1891-May 24 1891 21212 Contra Costa Mt. Diablo Comment
  RSA721284  Downingia pulchella Barbara Ertter, Tom Delendick 1996-5-2 14607 Contra Costa Spring town wetlands, N of Livermore, along closed section of Hartford Rd. Comment
  UC2028037  Draba verna Barbara Ertter 1998-3-7 15933 Contra Costa Rock City picnic area on southwest side of Mount Diablo. Comment
  UC42145  Dryopteris arguta Ivar Tidestrom VI, 1895 7 Contra Costa canyon near Crockett Comment
  UC1357009  Dudleya farinosa C. H. Uhl 1954-6-1 360 Contra Costa Richmond Point Comment
  UC2027843  Dysphania ambrosioides Barbara Ertter with Mary Bowerman 1996-11-1 15398 Contra Costa North base of Mount Diablo, downstream from Mitchell Canyon parking lot. Comment
  UCD60759  Echinochloa colona Beecher Crampton 1965-9-26 7528 Contra Costa 2 miles south of Brentwood, junction Walnut Ave, and Marsh Creek Road. Comment
  CAS-BOT-BC197108  Echinochloa crus-galli John Thomas Howell; Gordon H. True 1972-6-29 48942 Contra Costa Along Byron Hot Springs Road where water has stood, southeast of Byron Comment
  UC692401  Echinochloa crus-pavonis Mary L. Bowerman 1936-10-24 3582 Contra Costa N road below 2-story house E of N gate North Gate (roadside) Comment
  UC702897  Elaeagnus angustifolia Dr. E. C. Van Dyke 1941-10-4 Contra Costa River e of Antioch Comment
  UC1606336  Elatine californica Barbara Ertter, Brad Olson 1991-9-28 10829 Contra Costa betw Orinda and El Sobrante San Pablo Reservoir Comment
  JEPS45767  Elatine heterandra W. L. Jepson 1891-5-22 13954 Contra Costa Walnut Creek Comment
  CDA38938  Eleocharis macrostachya D. G. Kelch 2005-3-24 5 .062 Contra Costa Carquinez Strait Region; Southern Point Pinole. Comment
  UC1618280  Eleocharis macrostachya Barbara Ertter, Brad Olson 1991-9-28 10836 Contra Costa S end of San Pablo Reservoir, between Orinda and El Sobrante 91 Comment
  UC691970  Eleocharis macrostachya Mary L. Bowerman 1938-5-28 3645 Contra Costa Maple Spring, on upper margin especially in the NW corner Mount Diablo Comment
  JEPS111062  Eleocharis macrostachya Lee Echols 2003-6-20 s.n. Contra Costa Richmond Field Station, SW corner of Danthonia grassland N of Lark Drive 15 Comment
  UC756639  Elymus G. L. Stebbins Jr. 1946-6-9 3656 Contra Costa 2 mi e El Cerrito (near Mira Vista Country Club) Comment
  UC692419  Elymus X saundersii Mary L. Bowerman 1935-5-25 3073 Contra Costa Devil's Pulpit Mount Diablo (w side, on edge of outcrop) 1082 Comment
  UCD61518  Elymus elymoides P. B. Kennedy 1916-5-21 302 Contra Costa Between Diablo and Summit. Comment
  UC38136  Elymus glaucus J. Burtt Davy April 1897 Contra Costa Point Isabel Comment
  UC756637  Elymus glaucus G. L. Stebbins Jr. 1946-6-9 3653 Contra Costa 2 mi e El Cerrito (near Mira VistaCountry Club) Comment
  UC691170  Elymus multisetus Mary L. Bowerman 1933-6-7 2262 Contra Costa North Peak Mount Diablo 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
  UC1618362  Elytrigia intermedia subsp. intermedia Barbara Ertter with Lynne Hosley and Sid Cowles 1992-6-7 11084 Contra Costa along raod to quarry e of Round Top (Sibley Volcanic Regional Preserve in Oakland Hills); Oakland Hills, Sibley Volcanic Regional Preserve Comment
  JEPS1599  Emmenanthe penduliflora Mary L. Bowerman 1933-4-26 1916 Contra Costa North Peak ridge east-southeast of the peak, south face, Mount Diablo 609 Comment
  RSA128915  Emmenanthe penduliflora Peter H. Raven 1950-7-5 2480 Contra Costa A flat on south side of Mt. Diablo. 1067 Comment
  UC672376  Emmenanthe penduliflora Herbert L. Mason 1928-4-22 4434 Contra Costa Sycamore Canyon, south slope of Mount Diablo Comment
  UC2045290 Image available Emmenanthe penduliflora Mary L. Bowerman 1930-6-10 313 Contra Costa Meridian Peak summit Comment
  JEPS68926  Epilobium brachycarpum Edward Lee 1934-9-30 1219 Contra Costa just se station (roadside); Moraga Comment
  UCR115054  Epilobium campestre G. Fred Hrusa, D. Crowe, R. York 1998-7-17 14709 Contra Costa Sacramento-San Joaquin River Delta, E end of Dow Chemical property. 12 Comment
  UC101786  Epilobium campestre Katharine Brandegee 1907-6-16 Contra Costa near S.P. Station; Antioch Comment
  UC1122304  Epilobium canum subsp. canum H. S. Yates 1934-9-2 4068 Contra Costa 1 mi sw Mount Diablo; Mount Diablo Quadrangle Comment
  UC1745971  Epilobium canum subsp. canum Annetta M. Carter 1933-11-25 418 Contra Costa Mount Diablo Comment
  CAS-BOT-BC166167  Epilobium canum subsp. canum N. Floy Bracelin 1941-8-17 1567 Contra Costa In Berkeley Hills Comment
  CAS-BOT-BC166826  Epilobium canum subsp. latifolium K. Brandegee s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC166825  Epilobium canum subsp. latifolium M. K. Curran 1883-10-1 s.n. Contra Costa [Marsh's] Marsh Creek Comment
  UC1584862  Epilobium ciliatum subsp. ciliatum Jerry Powell 1987-11-1 1509 Contra Costa Point Molate Richmond Comment
  CDA9494  Epilobium cleistogamum D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .218 Contra Costa Byron Airport. Comment
  UC692448  Epilobium densiflorum Mary L. Bowerman 1931-6-16 929 a Contra Costa Chase Pond Mount Diablo 563 Comment
  UC692440  Epilobium minutum Mary L. Bowerman 1935-5-18 3022 Contra Costa nw-facing slope across road and a little e of parking area; Mount Diablo 1066 Comment
  UC692455  Epilobium minutum Mary L. Bowerman 1931-5-16 850 Contra Costa summit Mount Diablo Comment
  JEPS99501  Epilobium minutum Mary L. Bowerman 1978-5-14 Contra Costa Mount Diablo. The old wagon rd. mines trail on E side of Eagle Peak. Comment
  POM300615  Epipactis gigantea Mary L. Bowerman 1931-5-28 906 Contra Costa Mount Diablo: Pine Canyon, gully to south at east end of Castle Rock Farm: on dry waterfall between 2 pools Comment
  JEPS79478  Equisetum hyemale subsp. affine Edward Lee with C. Belshaw 1935-7-28 1700 Contra Costa w. end Las Trampas Ridge 426 Comment
  CDA31759  Eragrostis cilianensis Deviney 2007-8-2 PDR# 1455080 Contra Costa Brentwood (Knightsen); orchard on Sellers Ave. N of Delta Rd. Comment
  UC1818969  Eremocarpus setiger Barbara Ertter, M. L. Bowerman, L. Schultheis, Kevin Hintsa 1995-10-22 14529 Contra Costa Three Springs Trail on northeast side of Mt. Diablo, south of crest of Marsh Creek Rd. southeast of Clayton dried grasslands at base of trail. 304 Comment
  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
  UC908868  Eriastrum pluriflorum Herbert L. Mason 1933-6-10 7252 Contra Costa Brentwood Comment
  CAS-BOT-BC514609  Eriastrum pluriflorum subsp. pluriflorum T. S. Brandegee 1883-6-1 s.n. Contra Costa Antioch Comment
  UC61518  Ericameria arborescens A. B. Simonds Contra Costa Comment
  POM359375  Ericameria linearifolia B. C. Templeton 1962-6-10 s.n. Contra Costa Mt Diablo. Comment
  UC1818984  Erigeron foliosus var. franciscensis Barbara Ertter 1994-6-26 12874 Contra Costa South of Point Molate Beach Park in west Richmond north of San Rafael Bridge, perennial grassland on bluff above beach between park and Point Castro. Comment
  RSA22313  Erigeron petrophilus Joseph A. Ewan 1936-7-5 9735 Contra Costa Wildcat Creek. Comment
  CAS-BOT-BC295718  Erigeron petrophilus var. petrophilus John Thomas Howell 1923-11-12 249 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC295955  Erigeron philadelphicus Mary L. Bowerman 1935-5-16 2998 Contra Costa Mount Diablo. Russelman [Russellmann] Park road at Gregory Ranch junction 289 Comment
  JEPS41373  Erigeron philadelphicus var. philadelphicus W. L. Jepson 1922-5-26 9672 Contra Costa North Berkeley Hills Comment
  RSA401488C  Eriodictyon californicum Cora Mae Life 1923-7-4 95 Contra Costa Mt Diablo. Comment
  UC126026  Eriodictyon californicum Katharine Brandegee June, 1908 Contra Costa Antioch Comment
  UC194953  Eriogonum angulosum H. M. Hall 1916-8-17 10276 Contra Costa Deer Valley 182 Comment
  UC762634  Eriogonum gracile R. F. Hoover 1940-11-23 4695 Contra Costa 2 mi s Byron Comment
  UC2029081  Eriogonum gracile Barbara Ertter with Joanne Kerbavaz and Mary Bowerman 2000-8-20 17510 Contra Costa north side Mount Olympia in Mount Diablo State Park, bulldozed site of former occupation at Zippe Spring. Comment
  UC692016  Eriogonum gracile var. gracile Mary L. Bowerman 1932-9-3 1540 Contra Costa summit of Mount Diablo Mount Diablo Comment
  RSA97513  Eriogonum gracile var. gracile Beecher Crampton 1949-7-15 480 Contra Costa Foothills, above the site of the extinct town of Judsonville, south of Antioch Comment
  UC635006  Eriogonum luteolum var. luteolum H. L. Mason 1929-9-21 5434 Contra Costa 3 mi above, along Marsh Creek road Clayton Comment
  JEPS112018  Eriogonum nudum subsp. nudum Dean G. Kelch and Andrew G. Murdock 2004-5-28 AGM 293 Contra Costa Pinole Peak. Comment
  UC691129  Eriogonum nudum var. auriculatum Mary L. Bowerman 1932-9-17 1585 Contra Costa west fork of west fork Donner Canyon; Mount Diablo 335 Comment
  UC692159  Eriogonum nudum var. auriculatum Annetta Carter 1940-6-22 1600 Contra Costa Lime Ridge, n edge of s chaparral patch Mount Diablo 243 Comment
  UC692197  Eriogonum nudum var. auriculatum Mary L. Bowerman 1932-9-17 1578 Contra Costa Donner Canyon, w branch below fork Mount Diablo Comment
  UC692199  Eriogonum nudum var. auriculatum Mary L. Bowerman 1930-6-22 368 Contra Costa Mitchell Canyon trail Mount Diablo 457 Comment
  CAS-BOT-BC268911  Eriogonum nudum var. auriculatum Peter Rubtzoff 1951-10-7 813 Contra Costa 1 to 2 mi. southwest of Moraga Comment
  RSA0086416  Eriogonum nudum var. psychicola Jerry A. Powell 1962-8-19 308 Contra Costa About 2 miles east of Antioch. Comment
  SEINET11938139  Eriogonum nudum var. pubiflorum M. T. Doutt 1930-1 99 Contra Costa Marsh Creek Comment
  CAS-BOT-BC253092  Eriogonum roseum R. F. Hoover 1940-11-30 4699 Contra Costa 2 mi. S of Antioch Comment
  CAS-BOT-BC253093  Eriogonum roseum R. F. Hoover 1940-11-30 4699 Contra Costa 2 mi. south of Antioch Comment
  JEPS102915  Eriogonum roseum Barbara Ertter with Tony Morosco 1998-10-18 16436 Contra Costa NE corner of Lime Ridge recreation Area Mount Diablo 182 Comment
  CAS-BOT-BC267445  Eriogonum truncatum M. K. C. 1886-5-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC267446  Eriogonum truncatum M. K. Curran 1886-5-1 s.n. Contra Costa Antioch Comment
  SBBG65483  Eriogonum truncatum M. K. Curran -May-1886 Contra Costa Antioch Comment
  JEPS108318  Eriogonum umbellatum var. bahiiforme David Gowen 2005-5-29 399 Contra Costa West of Morgan Territory Rd. and the main entrance to Morgan Territory Regional Preserve. Rocky area west of summit of hill 2581 (Tassajara Pk.?). Comment
  CAS-BOT-BC262350  Eriogonum vimineum John Thomas Howell 1955-8-24 30903 Contra Costa Near summit of South Peak, Mt. Diablo 1158 Comment
  CAS-BOT-BC298507  Eriophyllum confertiflorum Alice Eastwood 1915-6-21 4739 Contra Costa San Leandro Comment
  UC196644  Eriophyllum jepsonii J. W. Congdon 1896-5-29 Contra Costa Mt. Diablo Comment
  UC691660  Eriophyllum jepsonii Mary L. Bowerman 1935-5-30 3087 Contra Costa Eagle Point Ridge 304 Comment
  CAS-BOT-BC300968  Eriophyllum lanatum var. achilleoides John Thomas Howell 1923-11-12 244 Contra Costa Mt. Diablo 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
  UC691668  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1935-5-30 3097 b Contra Costa Eagle Point ridge = between the two n ridges which converge at Twin Peaks; Mt. Diablo, Eagle Point ridge 350 Comment
  CAS-BOT-BC300964  Eriophyllum lanatum var. achilleoides L. Constance 1933-6-25 E 100 Contra Costa N. slope near the summit of Mt. Diablo 1097 Comment
  CAS-BOT-BC300975  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1930-6-28 388 Contra Costa Mount Diablo Comment
  CAS-BOT-BC300976  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1938-6-14 3687 Contra Costa Mount Diablo. 0.3 mile below Muir Area 960 Comment
  UC1584825  Eriophyllum staechadifolium Jerry Powell 1987-7-14 1504 Contra Costa sandstone bluff and back edge of point Molate Beach Comment
  UC692708  Erodium botrys Mary L. Bowerman 1931-3-14 571 Contra Costa Windy Point Mount Diablo Comment
  UC2032834  Erodium cicutarium Doran, Andrew Scott 2012-3-20 704 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  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
  UCSB12514  Erodium cicutarium Grah, Nancy 1962-4-14 Contra Costa 0.6 mile north of Tarry Lane on Tappan Lane; Orinda 243 Comment
  UC571138  Erodium macrophyllum H. L. Mason 1929-4-25 5209 Contra Costa Briones Road to Antioch 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
  UC606754  Erodium moschatum Edward Lee 1936-4-10 1995 Contra Costa Red Rock San Francisco Bay 54 Comment
  CAS-BOT-BC211072  Eryngium Katharine Brandegee 1907-5-16 s.n. Contra Costa Antioch Comment
  UC20998  Eryngium aristulatum var. aristulatum J. Burtt Davy 1900-3-24 6525 Contra Costa Santa Fe Comment
  CDA38330  Eryngium armatum Chas. Lasser 1960-4-21 s.n. Contra Costa Pittsburg. 0 Comment
  UC21001  Eryngium articulatum J. W. Congdon Sept. 1886 Contra Costa Comment
  UC2026171  Eryngium castrense Barbara Ertter with Tony Morosco 1996-1-15 14547 Contra Costa Mount Diablo (southeast side) trail from Curry Point to Frog Pond; edge of Sheepherder Pond. Comment
  CDA38315  Eryngium jepsonii D. G. Kelch 2004-7-9 4 .297 Contra Costa Carquinez Strait region; Crockett - Carquinez Scenic Drive; just west of Pt. Costa. Comment
  JEPS111619  Eryngium jepsonii D. G. Kelch 2004-7-9 04 .297 Contra Costa Crockett - Carquinez Scenic Drive Carq. Scenic Dr. Just west of Pt. Costa 60 Comment
  CAS-BOT-BC124232  Eryngium jepsonii Willis Linn Jepson 1895-9-1 s.n. Contra Costa Orinda Park 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
  SJSU1509  Erysimum capitatum D. J. Thompson 1954-5-2 Contra Costa between Pinole & Pittsburg Comment
  CAS-BOT-BC40757  Erysimum capitatum G. B. Rossbach; R. P. Rossbach 1938-6-5 859 Contra Costa Near summit Mount Diablo. Comment
  CDA33846  Erysimum capitatum D. G. Kelch 2010-5-15 10 .116 Contra Costa Mt. Diablo. Trail from Juniper Camp to Deer Flat. 0 Comment
  RSA0008588  Erysimum capitatum var. angustatum G. B. Rossbach, Ruth P. Rossbach 1938-6-5 858 Contra Costa Along tidal estuary of San Joaquin River, just east of Antioch Comment
  JEPS68964  Erysimum capitatum var. capitatum Edward Lee 1935-3-10 1296 Contra Costa e Antioch (hollow in stablized dune); Antioch Sand Dunes Comment
  UC673518  Erysimum capitatum var. capitatum H. L. Mason 1931-4-5 5822 Contra Costa Antioch sand hills Comment
  LA204363  Erysimum capitatum var. capitatum Herbert L. Mason; 1933-4-9 7189 Contra Costa E of Antioch along San Joaquin River 12 Comment
  SEINET5342636  Erysimum capitatum var. capitatum C. M. Fryer 1948-4-11 4 Contra Costa On Stipa hillside in shade. Mt. Diablo. 427 Comment
  CAS-BOT-BC402992  Eschscholzia californica L. R. Abrams 1921-5-25 8008 Contra Costa Near summit of Mt Diablo Comment
  CAS-BOT-BC402993  Eschscholzia californica M. K. Curran 1886-5-1 s.n. Contra Costa Antioch Comment
  JEPS51776  Eschscholzia californica W. L. Jepson 1907-4-27 2643 Contra Costa San Ramon Valley Comment
  UC1789211  Eucalyptus globulus Barbara Ertter 2002-5-11 17840 Contra Costa lower Emmons Canyon just outside of Mount Diablo State Park boundary. Comment
  RSA0028906  Eucalyptus sideroxylon Barbara Ertter, Laura Fujii 1999-3-7 16483 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, near Alvarado Staging area at NW end of park, along hiking road. Comment
  JEPS99575  Eucrypta chrysanthemifolia Mary L. Bowerman 1995-7-2 Contra Costa Mount Diablo, Back Canyon. Comment
  UC691714  Eucrypta chrysanthemifolia var. chrysanthemifolia Mary L. Bowerman 1931-4-4 652 Contra Costa 4.5 mi from Mount Diablo, West road (=North road) entrance; Mount Diablo 396 Comment
  UC692712  Euphorbia crenulata Mary L. Bowerman 1935-3-16 2742 Contra Costa e fork Arroyo del Cerro; Mount Diablo 289 Comment
  UCSB22012  Euphorbia lathyris Olson, Glen 1968-7-15 Contra Costa West side of Hope Lane, 0.2 mile north of its junction with St. Mary's Rd. 91 Comment
  UC2027960  Euphorbia maculata Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15666 Contra Costa Miller Knox Regional Shoreline south of Richmond, parking area for Richmond Ramblers. Comment
  UCR99454  Euphorbia oblongata L. C. Wheeler 1958-8-26 7446 Contra Costa c. 2 mi. SW of Martinez, 0.3 mi. NW of Glen Frazer on Santa Fe; apparently Franklin Canyon, 1.7 mi. west of Martinez at limit on California Route 4 Comment
  CDA4846  Euphorbia oblongata Margaret Bellue, A. Seeley Jun 1955 Contra Costa Highway 4, near Concord. 0 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
  UC1818890  Euphorbia peplus Barbara Ertter, Gary Schoolcraft 1996-4-7 14577 Contra Costa Molate Beach Park on San Francisco north of San Rafael Bridge; south end of parking area, in partial shade of planted shrub. Comment
  UC2028962  Euphorbia peplus Barbara Ertter 2003-2-8 18092 Contra Costa Richmond Field Station (UC-Berkeley), weedy edge of interior open space next to Egret Drive. Comment
  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
  UC2028954  Euphorbia serpens Barbara Ertter 2000-7-16 17387 Contra Costa Lower Pine Creek in Diablo Foothills Regional Park. Comment
  UC692696  Euphorbia spathulata Mary L. Bowerman 1931-5-2 792 Contra Costa n end Eagle Point ridge; Mount Diablo Comment
  UC1818929  Euphorbia spathulata Barbara Ertter, Brad Olson, Diane Lake 1996-4-14 14586 Contra Costa East side of Mt. Diablo, access from Morgan Territory Rd. to Prospectors Gap Rd., gate between archery range and private ranch, open oak woodland. Comment
  UC2062607  Euphorbia spathulata Barbara Ertter with Dan Norris 2001-4-8 17590 Contra Costa Lime Ridge Open Space east of Walnut Creek. Comment
  JEPS111697  Eurybia radulina D. G. Kelch 2004-4-25 04 .116 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Hill Southwest of large cottonwood. West of Martinez at gated end of Scenic Dr 50 Comment
  UC1999853  Eurybia radulina J. C. Semple, B. A. Suripto, T. Ahmed 1990-8-16 9340 Contra Costa Charles Tilden Reg. Park; Vollmer Peak. Comment
  CDA5288  Euthamia occidentalis D. G. Kelch 2004-9-2 4 .333 Contra Costa Carquinez Strait Region; Pacheco Marsh. Marsh east of Martinez and I-680 and east of lone tree Marsh. Comment
  CAS-BOT-BC310642  Euthamia occidentalis Virginia I. Dains; Walter Knight 1986-8-8 5468 Contra Costa Jct Rock S1 & Werner Cut Comment
  CAS-BOT-BC310643  Euthamia occidentalis Vincent Jones 1920-8-29 s.n. Contra Costa Orwood Comment
  UC1594167  Euthamia occidentalis Jerry Powell 1991-10-10 1617 Contra Costa Antioch National Wildelife Refuge Comment
  CDA2178  Festuca arundinacea T. C. Fuller 1961-9-13 7002 Contra Costa Hwy J4, ca. 4 miles southeast of Byron. 0 Comment
  UC692366  Festuca californica Mary L. Bowerman 1931-4-25 757 Contra Costa Mount Diablo, near junction of s and w roads Mount Diablo Comment
  CAS-BOT-BC282487  Festuca elmeri L. R. Abrams 1921-5-25 8051 Contra Costa 4 1/2 mi. from summit, Mt. Diablo Comment
  UC691232  Festuca elmeri Mary L. Bowerman 1935-5-3 2963 Contra Costa Sloan Road Mount Diablo 487 Comment
  CAS-BOT-BC278926  Festuca rubra Annetta Carter 1936-4-19 1111 Contra Costa Red Rock, San Francisco Bay Comment
  POM205843  Festuca rubra Jos Burtt Davy 1897-04 s.n. Contra Costa Point Isabel. Comment
  UC1795647  Festuca rubra Barbara Ertter, Brad Olson 1994-5-7 12752 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  UC606733  Festuca rubra Edward Lee 1936-4-19 1952 Contra Costa ne shore Rock; Red Rock Comment
  POM57345  Filago californica F. T. Bioletti 1892-1 s.n. Contra Costa [Unspecified] Comment
  CAS-BOT-BC52533  Frangula californica subsp. californica H. E. McMinn 1922-10-17 402 Contra Costa unspecified Comment
  JEPS74307  Frankenia salina John Thomas Howell and Gordon H. True 1972-6-29 48919 Contra Costa Byron Hot Springs Road se Byron Comment
  CAS-BOT-BC223392  Fraxinus dipetala H. E. McMinn 1922-10-1 407 Contra Costa Mitchell Canon [Canyon], Mt. Diablo Comment
  CAS-BOT-BC223393  Fraxinus dipetala Mary L. Bowerman 1935-6-1 3103 Contra Costa Mount Diablo. First small ridge east of Mitchell-Pine divide 1005 Comment
  UC691855  Fraxinus dipetala Mary L. Bowerman 1935-6-1 3104 Contra Costa first small ridge e Mitchell-Pine divide; Mount Diablo 975 Comment
  JEPS16561  Fremontodendron californicum G. G. Hahn Nov. 1914 Contra Costa 1/4 mile E. of Redwood Peak Comment
  JEPS112503  Fritillaria affinis A. G. Murdock 2004-4-30 262 Contra Costa Vaca Canyon 165 Comment
  JEPS61960  Fritillaria affinis W. L. Jepson 1921-11-19 8524 Contra Costa Mount Diablo Comment
  UC169477  Fritillaria affinis Katharine Brandegee April 1913 Contra Costa Eastport, Redwood Canyon, Oakland Hills, electric RR tunnel entrance Redwood Canyon; Eastport, , Oakland Hills Comment
  UC765860  Fritillaria affinis R. F. Hoover 1939-4-13 4013 Contra Costa head of Markley Canyon, (west branch) Markley Canyon Comment
  CAS-BOT-BC136072  Fritillaria affinis Dean William Taylor 1971-3-28 971 Contra Costa Along Morgan Territory Road 304 Comment
  CAS-BOT-BC136073  Fritillaria affinis Dean William Taylor 1971-3-28 971 Contra Costa Along Morgan Territory Road 304 Comment
  JEPS2598 Image available Fritillaria agrestis J. Burtt Davy 1895-4-7 987 Contra Costa Antioch Comment
  CAS-BOT-BC130198  Fritillaria agrestis Peter H. Raven; H. L. Mason; R. Ornduff; et al 1957-4-4 10574 Contra Costa 6.3 miles w. of Byron Comment
  OBI70584  Galium aparine D. G. Kelch 2007-3-24 7 .091 Contra Costa Ozol; between Port Costa and Martinez near old brick quarry 52 Comment
  UC1948947  Galium aparine William J. Ferlatte, L. Maynard Moe 1970-4-27 1247 Contra Costa San Francisco Bay: Red Rock Island Comment
  JEPS112108  Galium murale D. G. Kelch 2004-3-12 04 .36 Contra Costa Pinole Valley Hillside and canyon above Wright Road. Off of Pinole Valley Road 220 Comment
  UCD121835  Galium nuttallii Laurence S. Jones 1934-4-8 s.n. Contra Costa West slope of Mt. Diablo. 609 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
  JEPS14518  Galium tricornutum L. T. Dempster 1956-5-26 1005 Contra Costa hillside above Overhill Ct.; Orinda Comment
  CAS-BOT-BC200623  Garrya elliptica John Thomas Howell 1926-1-16 1625 Contra Costa Head of San Leandro Canyon, Oakland Hills Comment
  CAS-BOT-BC200622  Garrya elliptica Alice Eastwood 1907-7-1 s.n. Contra Costa Berkeley Hills Comment
  CAS-BOT-BC200631  Garrya elliptica H. E. McMinn 1925-1-30 1398 Contra Costa Thornhill Gulch. Oak. [Oakland] Hills Comment
  CAS-BOT-BC178550  Garrya flavescens H. E. McMinn 1922-6-13 230 Contra Costa Unspecified Comment
  UCSC000542  Garrya fremontii R. W. Lundh 1932-8-26 145 Contra Costa 1.333 mi. W. of Mt. Diablo Mt. Diablo - Mt. Diablo 1097 Comment
  CAS-BOT-BC282607  Gastridium phleoides Virginia E. Long 1933-6-14 224 a Contra Costa Curry Cave Trail, Mt. Diablo 457 Comment
  CAS-BOT-BC282612  Gastridium phleoides Mary L. Bowerman 1935-7-22 3191 Contra Costa Hidden Pond, south side Meridian Peak, Mount Diablo Comment
  CDA9420  Gastridium ventricosum D. G. Kelch 2004-5-3 4 .152 Contra Costa Carquinez Strait; Mt Wanda, Martinez. 0 Comment
  JEPS111082  Gastridium ventricosum Lee Echols 2003-6-15 s.n. Contra Costa S. of Lark Drive in E portion of grassland W of EPA building within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond 15 Comment
  UC17121  Geranium carolinianum State Survey 1862-4-26 998 Contra Costa near Martinez Comment
  JEPS111977  Geranium dissectum D. G. Kelch 2004-3-12 04 .25 Contra Costa Pinole Valley Hillside and canyon above Wright Road. Off of Pinole Valley Road. Contra Costa County, CA 140 Comment
  UC17128  Geranium dissectum W. H. Brewer 1862-4-26 998 Contra Costa 6 mi w Martinez Comment
  UC2032836  Geranium dissectum Doran, Andrew Scott 2012-3-20 706 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  UCD103388  Geranium dissectum Ernest C. Twisselmann 1959-4-8 5022 Contra Costa Edmunds Native Plant Nursery, Danville. Shandon, CA. 45 Comment
  JEPS111972  Geranium molle D. G. Kelch 2004-5-9 04 .203 Contra Costa Crockett - Edwards Canyon Upper Edwards Canyon 160 Comment
  JEPS111974  Geranium molle D. G. Kelch 2004-4-25 04 .117 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Hill Southwest of large cottonwood. West of Martinez at gated end of Scenic Dr 50 Comment
  JEPS99600  Geranium molle Mary Bowerman 1978-4-17 Contra Costa Mount Diablo, Back Canyon. 259 Comment
  RSA0029465  Geranium purpureum Barbara Ertter 2000-5-14 17012 Contra Costa Mount Diablo Regional Park, Falls Trail at Donner Creek crossing. 488 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
  RSA34736  Gilia achilleifolia R. C. Rollins 1946-3-25 3045 Contra Costa Sacramento Northern Embarkment, Moraga Canyon, 0.8 miles east of railway tunnel 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
  UC691626  Gilia achilleifolia subsp. achilleifolia Mary L. Bowerman 1933-5-3 1976 Contra Costa due s of summit Meridian peak (Mount Diablo); , Meridian Peak 731 Comment
  JEPS108360  Gilia achilleifolia subsp. achilleifolia David Gowen 2005-4-11 230 Contra Costa Mt. Diablo State Park. Below Devils Elbow in the upper part of Rhine Canyon drainage. Comment
  POM300971  Gilia achilleifolia subsp. multicaulis Mary L. Bowerman 1935-5-1 2932 Contra Costa North Road 2 miles from North Gate. 183 Comment
  RSA722061  Gilia achilleifolia subsp. multicaulis Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14226 Contra Costa Mt. Diablo southeast of Walnut Creek, serpentine knoll ca 1/2 airmile north of Curry Point 488 Comment
  UC1084502  Gilia capitata subsp. staminea G. Thomas Robbins 1940-5-19 323 Contra Costa e Antioch (hills bordering San Joaquin River); hills bordering San Joaquin River e of Antioch Comment
  UC908108  Gilia capitata subsp. staminea Herbert L. Mason 1929-3-31 5159 Contra Costa Antioch; San Joaquin River Comment
  UCR86951  Gilia capitata subsp. staminea Peter L. Morrell, Donna Krause 1993-5-16 239 Contra Costa Along side of road 100m west of 1701 Wilbur Ave., Antioch, between Southern Pacific tracks and San Joaquin River (0.5 miles west of Calif. Hwy 4/160) 6 Comment
  RSA63718  Gilia capitata subsp. staminea Verne Grant, Alva Grant 1947-4-13 7925 Contra Costa By railroad tracks east of Antioch. Comment
  UC691671  Gilia clivorum Mary L. Bowerman 1931-3-21 604 Contra Costa e end Fossil Ridge , Fossil Ridge, e end (Mount 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
  UCR124270  Gilia multicaulis L. S. Rose 1935-5-16 35175 Contra Costa Mt. Diablo Comment
  SEINET3696190 Image available Gilia tricolor Lewis S. Rose 1932-3-15 3283 Contra Costa Byron. Comment
  SEINET12278815  Gilia tricolor J. G. Lemmon 1878-1 s.n. Contra Costa side of Mt. Diablo Comment
  UC23867  Gilia tricolor subsp. tricolor McLean March 1875 Contra Costa Concord Comment
  JEPS11816  Githopsis specularioides Chesnut and Drew 1889-4-16 Contra Costa Clayton Comment
  CHSC75085  Glycyrrhiza lepidota Roger Thom 1987-5-13 9 Contra Costa Calif. State University Hayward's Contra Costa Campus. 3100 Oak Park Blvd. Pleasant Hill. 30 Comment
  UC1784219  Glycyrrhiza lepidota Ethel Crum 1930-9-29 856 Contra Costa Marsh Creek Road to Holt Comment
  UC692667  Glycyrrhiza lepidota Mary L. Bowerman 1931-5-13 842 Contra Costa canyon floor 1 mi above sulphur spring; Mount Diablo, Pine Canyon Comment
  RSA666773  Gnaphalium palustre Barbara Ertter, Brad Olson 1991-9-28 10835 Contra Costa San Pablo Reservoir between Orinda and El Sobrante. 91 Comment
  POM721360  Gnaphalium stramineum Barbara Ertter, Richard K. Rabeler 1994-6-6 12817 Contra Costa Point Isabel in S Richmond; on old railroad bed north of Costco. Comment
  CAS-BOT-BC305227  Grindelia hirsutula Lewis S. Rose 1930-7-22 s.n. Contra Costa Pittsburg Comment
  JEPS20303  Grindelia hirsutula Lewis S. Rose 1954-11-23 54136 Contra Costa 1 mi s Pittsburg 15 Comment
  JEPS25016  Grindelia hirsutula G. Thomas Robbins 1958-10-2 3941 Contra Costa just w Carlson Blvd. (near Stege railroad siding, along Southern Pacific Railroad); Richmond Comment
  UC1618419  Grindelia hirsutula Barbara Ertter, Diane Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10716 Contra Costa west-most point opposite Pittsburg Marina (Browns Island n of Pittsburg near confluence of Sacramento and San Joaquin Rivers); Browns Island Comment
  UC2042497  Grindelia hirsutula Barbara Keller 2007-7-10 Contra Costa Mt. Diablo State Park, along Summit Rd. Comment
  UC87885  Grindelia hirsutula T. S. Brandegee June 1884 171 Contra Costa Antioch Comment
  CAS-BOT-BC305241  Grindelia hirsutula John Thomas Howell 1929-9-21 4396 Contra Costa Marsh Creek Road 3.5 miles sw. of Brentwood Comment
  SEINET201967  Grindelia hirsutula var. hirsutula G. T. Robbins 1959-4-25 4003 Contra Costa Potero Hills above shore of San Francisco Bay S of Castro Pt. and just N of Richmond-San Rafeal Bridge Richmond Comment
  JEPS54107  Guillenia lasiophylla H. P. Chandler 1900-3-24 Contra Costa Briones Hills Region of Mount Diablo Comment
  UC10944  Guillenia lasiophylla W. H. Brewer 1862-4-24 987 Contra Costa Camp 68 Martinez Comment
  UC691127  Guillenia lasiophylla Mary L. Bowerman 1932-4-27 1401 Contra Costa canyon w Riggs Canyon; Mount Diablo, Oyster Ridge 350 Comment
  JEPS40433  Gutierrezia californica William Turner 1965-10-13 Contra Costa in the sand hills Antioch (along the San Joaquin River); San Joaquin River, Antioch Comment
  JEPS79354  Gutierrezia californica Edward Lee with Annetta Carter 1935-8-17 1622 Contra Costa Antioch sand-dunes Antioch 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
  UCD132631  Gutierrezia californica Peter Rubtzoff 1954-9-14 1750 Contra Costa Lower San Joaquin River, E of Antioch. Comment
  UC1050450  Hebe hulkeana N. Floy Bracelin 1941-5-4 1277 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  UC1050044  Hebe traversii N. Floy Bracelin 1944-7-23 1507 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  UC1795862  Hedera helix Barbara Ertter 1994-10-23 13915 Contra Costa Southwest El Cerrito, north edge Breuner's parking lot, northwest of Albany Hill. Comment
  UC2032809  Hedera helix Doran, Andrew Scott 2012-3-20 679 Contra Costa Brooks island loading dock, North side of island. Just above high tide mark. Comment
  SEINET10579391  Hedera helix Barbara J. Ertter 1994-10-23 Ertter 13915 Contra Costa Southwest El Cerrito, north edge of Breuner's parking lot, northwest Albany Hill. Comment
  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
  UC1795633  Hedypnois rhagadioloides Barbara Ertter 1994-5-23 12809 Contra Costa Point Isabel at S end Richmond, Regional Shoreline and marsh at end of Rydin Road Comment
  UC1795793  Hedypnois rhagadioloides Barbara Ertter, Mary Bowerman 1995-6-11 14249 Contra Costa Shell Ridge Recreation Area southeast of Walnut Creek, at west base Mt. Diablo.; annual grassland near Indian Valley School entrance, clay soil (planted Clarkia also present). 91 Comment
  UC566690  Helenium puberulum H. L. Mason 1924-11-23 1162 Contra Costa Las Trampas Creek 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
  CAS-BOT-BC305320  Helianthella castanea John Thomas Howell 1940-4-21 15398 Contra Costa Pine Canyon, Mt. Diablo Comment
  CAS-BOT-BC305328  Helianthella castanea John Thomas Howell 1931-5-12 6475 Contra Costa Nortonville Comment
  UC1819046  Helianthella castanea Barbara Ertter, Lisa Schultheis 1995-4-27 14016 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; north-facing open brushy slope with scattered oaks along extension of Valley View road. 182 Comment
  UC194921  Helianthella castanea H. M. Hall 1916-5-31 10137 Contra Costa n slope of summit Mt. Diablo 1158 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
  CAS-BOT-BC305324  Helianthella castanea W. C. McCalla 1925-4-22 s.n. Contra Costa Leona Heights near Oakland Comment
  CAS-BOT-BC305605  Helianthus californicus Walter Knight; Joanne Dean 1978-8-14 3182 Contra Costa Browns Island Comment
  CAS-BOT-BC305606  Helianthus californicus Mary L. Bowerman 1932-9-17 1581 Contra Costa Mount Diablo. Donner Canyon, west fork Comment
  JEPS78634  Helianthus californicus Walter Knight and Neil Havlik 1979-10-7 3416 Contra Costa between Whittell marsh and a marsh to the e part of the park,; Point Pinole Regional Shoreline 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
  UC2028257  Helianthus gracilentus Barbara Ertter 1999-6-12 16722 Contra Costa Knobcone Point Road on south side of Mount Diablo, burned chamissal at head of NE fork of Sycamore Creek. Comment
  UC691488  Helianthus gracilentus Mary L. Bowerman 1933-5-11 2074 Contra Costa most westerly part 1931 burn; Mount Diablo, Inner Black Hills Comment
  JEPS111842  Heliotropium curassavicum D. G. Kelch 2004-7-9 04 .307 Contra Costa Muir grave Alhambra Creek, Martinez, Near Muir gravesite 60 Comment
  UC650558  Heliotropium curassavicum Ira L. Wiggins 1930-4-18 4606 Contra Costa Jersey Isl. Comment
  UC1050535  Helleborus orientalis N. Floy Bracelin 1944-2-2 1942 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC305872  Helminthotheca echioides R. E. Frenkel 1964-2-22 365 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  CAS-BOT-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
  CAS-BOT-BC306261  Hemizonia congesta subsp. lutescens H. M. Hall 1914-8-23 9860 Contra Costa San Pablo 9 Comment
  UC1536900  Hemizonia congesta subsp. luzulifolia Gordon H. True Jr. 1937-10-12 838 Contra Costa near Pinole 30 Comment
  UC1561246  Hemizonia congesta subsp. luzulifolia Barbara Ertter 1989-9-30 8861 Contra Costa e El Cerrito (3 mi nw of Inspiration Point, East Bay Skyline Nat'l Recreation Trail = Nimitz Way); East Bay Skyline Nat'l Recreation Trail, Wildcat Canyon Regi Comment
  UC570418  Hemizonia congesta subsp. luzulifolia Chas. M. Belshaw 1936-10-26 2722 Contra Costa fallow fields near Walnut Creek; Coast Ranges Comment
  UC697174  Hemizonia congesta subsp. luzulifolia Mary L. Bowerman 1933-5-25 2197 Contra Costa s-facing slope between forks of branch of Alamo Creek on s side main ridge; Mount Diablo, Oyster Ridge Comment
  CAS-BOT-BC314859  Hemizonia congesta subsp. luzulifolia David D. Keck 1932-7-7 1740 Contra Costa 10 miles S. of Brentwood on Vasco Road to Livermore, southerastern Contra Costa County Comment
  CAS-BOT-BC314869  Hemizonia congesta subsp. luzulifolia James McMurphy 1915-5-25 s.n. Contra Costa Richmnod Junction Comment
  SEINET5782065 Image available Hemizonia fitchii L. S. Rose 1941-10-13 41464 Contra Costa 1 mi E of Walnut Creek Comment
  SEINET7883352 Image available Hemizonia heermannii L. S. Rose 1941-1 41465 Contra Costa 1 mi E of Walnut Creek Comment
  POM30955  Hemizonia kelloggii Katherine Brandegee 1907-5-5 19 Contra Costa Near Antioch. Comment
  RSA103865  Hemizonia kelloggii M. K. Curran 1886-04 95 Contra Costa Antioch. Comment
  CDA7803  Hemizonia pungens subsp. pungens T. C. Fuller 1961-7-6 7367 Contra Costa East of road, south end of Antioch bridge, Antioch. 0 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
  UC692315  Heracleum lanatum Mary L. Bowerman 1931-4-18 720 Contra Costa Mt. Diablo, Sycamore Canyon 335 Comment
  RSA720838  Herniaria hirsuta subsp. cinerea Barbara Ertter, Lisa Schultheis 1995-4-27 14013 Contra Costa Lime ridge open space NW of Mt. Diablo in Walnut Creek; extension of Valley View road. 152 Comment
  CAS-BOT-BC310161  Hesperevax caulescens Dr. A. Kellogg; W. G. W. Harford 1868-1-1 419 Contra Costa Antioch Comment
  CAS-BOT-BC310195  Hesperevax sparsiflora var. sparsiflora Mary L. Bowerman 1931-4-11 688 Contra Costa Mount Diablo. Pine Canyon 121 Comment
  CAS-BOT-BC167427  Hesperolinon breweri T. S. Brandegee 1884-5-1 s.n. Contra Costa Near Antioch Comment
  CAS-BOT-BC167441  Hesperolinon breweri Mary L. Bowerman 1930-6-22 356 Contra Costa Mitchell Canyon. Mt Diable Comment
  POM301857  Hesperolinon breweri Mary L. Bowerman 1935-6-15 3137 Contra Costa Eagle Point ridge east of 2632 Comment
  RSA0031306  Hesperolinon breweri Barbara Ertter 2000-5-14 17000 Contra Costa Donner Canyon on north side of Mount Diablo. 335 Comment
  UC1212213  Hesperolinon breweri Rimo Bacigalupi and Alex Hawkes 1951-6-4 3360 Contra Costa saddle between main and n peaks Inner South Coast Ranges, Mount Diablo 883 Comment
  UC84831  Hesperolinon breweri Mrs. K. Brandegee 1907-6-16 34 Contra Costa hills between Antioch and Marsh Creek (on e side of Mt. Diablo) 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
  UC725833  Hesperomecon linearis A. A. Heller 1908-4-16 8890 Contra Costa East of Antioch 22 Comment
  UC186817  Heterodraba unilateralis F. T. Bioletti 1892-1 Contra Costa Byron Comment
  SEINET11915755  Heteromeles arbutifolia M. T. Doutt 1930-1 87 Contra Costa Marsh Creek Comment
  JEPS40434  Heterotheca grandiflora William Turner 1965-11-23 Contra Costa just e Antioch (in the Antioch sand hills); San Joaquin River Comment
  UC87450  Heterotheca oregona var. scaberrima J. W. Congdon Sep 1886 Contra Costa Comment
Read comments
Apr 23 2007
  UC1619993  Heterotheca sessiliflora subsp. bolanderi Barbara Ertter 1991-5-5 9770 Contra Costa s of Pittsburg (s side of Rose Hill above cemetery, Black Diamond Mines Regional Preserve); Black Diamond Mines Regional Preserve, Rose Hill 365 Comment
  UC691817  Heterotheca sessiliflora subsp. echioides Mary L. Bowerman 1930-12-2 501 Contra Costa near base Mount Zion; Mount Diablo Comment
  CAS-BOT-BC311213  Heterotheca sessiliflora subsp. echioides Walter Knight 1965-9-7 1166 Contra Costa Antioch sand dunes 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
  UC14493  Heuchera micrantha Jos. Burtt Davy 1901-4-21 6921 Contra Costa Wildcat Canyon Comment
  CAS-BOT-BC203381  Hibiscus lasiocarpos var. occidentalis Vincent Jones 1920-8-29 s.n. Contra Costa Orwood Comment
  UC691425  Hieracium albiflorum Mary L. Bowerman 1930-10-19 488 Contra Costa s road at Garden-of-the-Gods; Mount Diablo Comment
  CAS-BOT-BC55300  Hirschfeldia incana John Thomas Howell; Gordon H. True 1972-6-29 48929 Contra Costa Byron Hot Springs Road southeast of Byron. Comment
  UC16313  Hoita orbicularis McLean March, 1875 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC325836  Holocarpha heermannii Elsie M. Zeile 1921-11-19 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC325849  Holocarpha heermannii A. D. E. Elmer 1903-7-1 4613 Contra Costa Mt. Diablo 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
  UC1069570  Holocarpha heermannii R. W. Lundh 1932-9-23 171 Contra Costa 1 mi sw Mt. Diablo; Mt. Diablo Quadrangle 914 Comment
  CAS-BOT-BC325828  Holocarpha heermannii David D. Keck 1933-11-2 2622 Contra Costa 5 mi. S.E. of Clayton on Marsh Creek Road opposite Mt. Diablo Comment
  CAS-BOT-BC325835  Holocarpha heermannii David D. Keck 1933-11-2 2624 Contra Costa 5 miles SE of Clayton on Marsh Creek Road just opposite Mt. Diablo Comment
  RSA81664  Holocarpha heermannii James I. McMurphy 1909-9-25 s.n. Contra Costa Below Alamo. Comment
  UC1795841  Holocarpha heermannii Barbara Ertter, M. L. Bowerman, L. Schultheis, Kevin Hintsa 1995-10-22 14528 Contra Costa Three Springs Trail on northeast side of Mt. Diablo, south of crest of Marsh Creek Rd. southeast of Clayton dried grasslands at base of trail. 304 Comment
  CAS-BOT-BC320221  Holocarpha macradenia Walter Knight; Irja Knight 1977-9-12 3161 Contra Costa At SE corner of A-pian [Appian] Way and Highway I-80. Pinole Comment
  UCD133200  Holocarpha macradenia Robert E. Preston 1993-6-29 624 Contra Costa Pinole, ca. 1,000 feet east of Interstate 80, between Interstate 80 and Crespi Junior High School. 94 Comment
  CAS-BOT-BC324617  Holocarpha virgata R. F. Hoover 1965-9-24 9648 Contra Costa Foothills west of Byron east of Kellogg Creek Comment
  CAS-BOT-BC320329  Holocarpha virgata John Thomas Howell 1930-9-28 5502 Contra Costa 5.4 miles from Byron, on Marsh Creek Road Comment
  RSA94065  Holocarpha virgata subsp. virgata J. T. Howell 1930-9-28 5501 Contra Costa 5.4 miles from Byron on Marsh Creek Road. Comment
  JEPS112080  Holodiscus discolor D. G. Kelch 2003-8-13 03 .125 Contra Costa Vaca Canyon 165 Comment
  JEPS99981  Holodiscus discolor A. Langston 2003-6-12 AL 40 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD159359  Holozonia filipes D. S. Park 2010-6-22 144 Contra Costa Wildwood canyon, along trailside. Grassland. Abundant. 97 Comment
  JEPS111064  Hordeum brachyantherum subsp. brachyantherum Lee Echols 2003-6-15 s.n. Contra Costa N of Lark Drive in SW portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  UC50661  Hordeum brachyantherum subsp. brachyantherum Jos. Burtt Davy 1899-4-19 7850 Contra Costa Las Trampas Ridge Comment
  UC650561  Hordeum depressum Ira L. Wiggins 1930-4-17 4578 Contra Costa 1/4 m S of Byron Comment
  UC55039  Hordeum marinum subsp. gussoneanum Jos. Burtt Davy 1898-4-8 4253 Contra Costa Danville Comment
  UCD85827  Hordeum marinum subsp. gussoneanum Beecher Crampton 1956-5-14 3411 Contra Costa 1 mile east of Pacheco, Buchanan Field. Comment
  POM300591  Hordeum marinum subsp. gussoneanum Mary L. Bowerman 1931-5-13 846 Contra Costa Pine Canyon floor slightly more than a mile above the sulphur spring Comment
  UC1950125  Hordeum marinum subsp. gussoneanum Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8121 Contra Costa alkali sink W and adjacent to Clifton Court Forebay, ca 15 airmiles SW of Stockton Comment
  JEPS100007  Hordeum murinum G. Smick 2003-3-27 GAS 93 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  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
  CAS-BOT-BC284777  Hordeum murinum subsp. glaucum Mary L. Bowerman 1933-4-15 1845 Contra Costa Mount Diablo. Canyon south of Arroyo del Cerro Comment
  CDA29160  Hordeum murinum subsp. leporinum D. G. Kelch 2006-5-7 6 .145 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  CHSC21616  Hordeum murinum subsp. leporinum Willis Ball 1974-4-21 430 Contra Costa Contra Loma Regional Park. In area #1. Immediately to the s side of the main parking lot at the s end of the lake. 38 Comment
  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
  UCSB12516  Hordeum murinum subsp. leporinum Grah, Nancy 1962-4-14 Contra Costa .5 miles north of Miner Rd. on Sleepy Hollow Lane, Orinda 182 Comment
  UC521670  Horkelia californica subsp. dissita Joseph Andorfer Ewan 1933-10-15 8023 Contra Costa Above Indian Ceremonial Spr.; Mt. Diablo Comment
  UC691150  Horkelia californica subsp. frondosa Mary L. Bowerman 1933-5-16 2996 Contra Costa just s the north boundary of section 25.; russelman Park 396 Comment
  JEPS96231  Hypericum calycinum Barbara Ertter 1993-6-25 11907 Contra Costa 1/4 mi s of junction of Lomas Cantadas (1/4 mi s of Tilden miniature steam trains, Oakland-Berkeley Hills, Grizzly Peak Boulevard); Oakland-Berkeley Hills, Grizzly Peak Boulevard 487 Comment
  RSA31227  Hypochaeris glabra Joseph A. Ewan 1936-5-3 9492 Contra Costa W slope of Wildcat Canyon near Shasta Road. Comment
  UC407368  Hypochaeris glabra Ira L. Wiggins 1930-4-18 4596 Contra Costa Comment
  UC1555372  Hypochaeris radicata Jerry Powell 1988-5-18 1533 Contra Costa w Richmond; Point Molate Comment
  UC1584689  Hypochaeris radicata Jerry Powell 1987-7-14 1506 Contra Costa Point Molate Beach Comment
  CAS-BOT-BC311406  Hypochaeris radicata Goodwin; Bellue 1932-5-6 s.n. Contra Costa Unspecified 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
  UC4288  Iris longipetala J. Burtt Davy April, 1897 Contra Costa Point Isabel Comment
  CDA9229  Iris pseudacorus D. G. Kelch 1991-5-1 s.n. Contra Costa CA Delta; Pittsburg Marina Comment
  UC2028408  Iris pseudacorus Barbara Ertter with Richard K. Brummitt 1998-5-16 16096 Contra Costa Antioch Marina, edge of brackish marsh Comment
  JEPS368  Isoetes orcuttii J. Burtt Davy 1895-4-7 900 Contra Costa Antioch Comment
  CAS-BOT-BC324757  Iva axillaris Walter Knight; Irja Knight 1977-8-21 3156 Contra Costa Martinez Regional Shoreline, Martinez, east of Ferry Street, 100 yards form S.P. tracks Comment
  JEPS22099  Iva axillaris subsp. robustior G. Thomas Robbins 1958-7-19 3909 Contra Costa at edge of rock quarry on hills above and just s Castro Pt.; San Francisco Bay, Richmond Comment
  UC1949201  Jaumea carnosa Barbara Ertter with Elizabeth Neese 1988-10-15 7975 Contra Costa W of I-580 in El Cerrito, W side along Rydin Road N of Central Avenue Comment
  JEPS100045  Juglans californica var. hindsii G. Smick 2003-5-13 GAS 192 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS21838  Juglans californica var. hindsii Bryce G. Decker 1958-5-17 88 Contra Costa bank of slough 1 mi s Four Corners (se of Concord); former course of Walnut Creek Comment
  CAS-BOT-BC102303  Juglans hindsii D. E. Stone; B. L. Stone 2004-7-9 4286 Contra Costa Just inside entrance to northern perimeter of Mount Diablo State Park, at terminus of Mitchell Canyon Rd south of 172 Comment
  CDA9511  Juglans hindsii D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .238 Contra Costa CA Delta; Along Clifton Court Near Clifton Court Forebay. Comment
  JEPS112446  Juncus balticus D. G. Kelch 2003-8-13 03 .108 Contra Costa Martinez Marsh 0 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
  UC691939  Juncus balticus Mary L. Bowerman 1933-9-15 2444 Contra Costa s-face Meridian Peak; Mount Diablo, , Hunt Spring 762 Comment
  UC1601708  Juncus bufonius J. Burtt Davy 1897-9-4 4080 Contra Costa Stege Comment
  JEPS116854  Juncus bufonius var. bufonius David Gowen 2007-4-16 676 Contra Costa Briones Regional Park in the northern Maricich Lagoon. Comment
  UC1819013  Juncus bufonius var. bufonius Barbara Ertter, Mary Bowerman et al. 1995-5-7 14040 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, damp road bed, clayey, in grassy flat south of pond, near edge of blue oak forest. Comment
  JEPS111067  Juncus bufonius var. congestus Lee Echols 2003-4-15 s.n. Contra Costa S of Lark Drive and N of EPA Building, within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  UC1795668  Juncus bufonius var. congestus Barbara Ertter, Mary Bowerman et al. 1995-5-7 14037 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, damp road bed, clayey, in grassy flat south of pond, near edge of blue oak forest. Comment
  CDA2696  Juncus gerardi Barbara Ertter, S. Matson 2003-5-31 18175 Contra Costa Carquinez Strait; Martinez Regional Shoreline along Pickleweed Trail west of Arch Bridge. 0 Comment
  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
  SD107680  Juncus occidentalis Walter Knight 1980-3-13 3740 Contra Costa Top of low bluffs along southern shore of San Pablo Bay, Point Pinole Regional Park. Comment
  UC1795655  Juncus occidentalis Barbara Ertter, Gary Schoolcraft, Tony Morosco 1996-4-6 14566 Contra Costa West end Oyster Point Rd in Mt Diablo State Park, moist meadow just east of junction. Comment
  JEPS99595  Juncus patens Mary Bowerman 1993-10-22 Contra Costa Mount Diablo, Pine Pond floodplain. Comment
  RSA0069375  Juncus patens Katie Gallagher, Nick Jensen 2014-4-26 214 Contra Costa Las Trampas Regional Wilderness. 487 Comment
  RSA0033763  Juncus phaeocephalus var. paniculatus Barbara Ertter 1998-5-3 16061 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. 304 Comment
  JEPS112436  Juncus xiphioides D. G. Kelch 2004-5-7 04 .201 Contra Costa Ca ada del Cierbo 40 Comment
  UC1076380  Juniperus californica Herbert L. Mason 1923-11-12 850 Contra Costa middle slopes 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
  UC727702  Juniperus californica Milo S. Baker 1946-1-1 11255 Contra Costa ca halfway to summit Mt. Diablo (near roadside at parking place) Comment
  POM212437  Juniperus californica Joseph A. Ewan 1933-10-15 8038 Contra Costa SW slope of Mt Diablo. 1067 Comment
  CAS-BOT-BC235870  Keckiella corymbosa A. D. E. Elmer 1903-7-1 4956 Contra Costa Mount Diablo Comment
  CAS-BOT-BC235874  Keckiella corymbosa Lewis S. Rose 1932-6-24 32353 Contra Costa Mt. Diablo 1173 Comment
  JEPS11127  Keckiella corymbosa W. L. Jepson 1920-8-12 9073 Contra Costa very summit Mt. Diablo Comment
  NY790275  Keckiella corymbosa A. D. E. Elmer 07 1903 4956 Contra Costa Mt. Diablo Comment
  SD243323  Kochia scoparia C. Thayer, Erin McDermott 2006-8-23 82306 a Contra Costa Antioch, northwest corner of Deer Valley Road and Lone Tree Way. Also noted near front of Prewett Family Water Park, 0.4 miles east near Aqueduct right of way. (CCCDA mostly eradicated both colonies in September). 45 Comment
  SEINET186056 Image available Koeleria macrantha V. E. Long 1933-6-14 223 a Contra Costa Mt. Diablo 457 Comment
  UC691222  Koeleria macrantha Mary L. Bowerman 1931-5-2 796 Contra Costa n end of Eagle Point ridge Mount Diablo (in canyon on n face, upper end); , n end of Eagle Point Ridge Comment
  UCD85839  Koeleria macrantha P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  SEINET10607073  Koeleria macrantha Virginia E. Long 1933-6-14 Long 223 a Contra Costa Mt. Diablo. On top of grassy ridge between Curry Cave trail canyon & W. fork. 457 Comment
  UC1050315  Kolkwitzia amabilis N. Floy Bracelin 1943-7-4 1584 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC691804  Lactuca saligna Mary L. Bowerman 1932-11-26 1676 Contra Costa Maple Spring; Mount Diablo Comment
  CDA7170  Lactuca serriola D. G. Kelch 2006-7-14 6 .331 Contra Costa Carquinez Strait; Along Marine Vista Ave immmediately west of Pacheco Slough. East of Martinez. Comment
  CAS-BOT-BC340539  Lactuca serriola A. D. E. Elmer 1903-7-1 4612 Contra Costa Port Costa Comment
  JEPS75560  Lactuca virosa P. F. Yorks 1975-9-18 496 Contra Costa 1.9 km s Bear Creek Road (on Hampton Road in Hampton Road Natural Reserve, n of Briones Reservoir); Hampton Road Natural Reserve 200 Comment
  JEPS103664  Lastarriaea coriacea David Gowen 2003-7-6 Contra Costa Lime Ridge Open Space, N end 182 Comment
  CAS-BOT-BC337977  Lasthenia californica W. H. Brewer 1862-5-19 1120 Contra Costa North of Kirker's Pass Comment
  CDA8107  Lasthenia californica D. G. Kelch 1992-3-21 1827 -A Contra Costa 2.5 mi. SE of Byron; along RR tracks, N of junction of Holey Rd. and Byron Hwy. 0 Comment
  UC1614099  Lasthenia californica subsp. californica Charles M. Belshaw 1935-6-24 782 Contra Costa 0.5 mi. e. Grizzly Peak (n. face Bald Peak); Bald Peak Comment
  JEPS18379  Lasthenia fremontii Rimo Bacigalupi with F. Chisaki 1957-3-27 5766 Contra Costa about 5.25 mi nw of Bethany and 1.25 mi nw of Herdlyn n end of the Holey road; At S. P. R. R. crossing of Byron Hwy. 5 Comment
  CAS-BOT-BC353329  Lasthenia fremontii C. F. Baker 1903-4-27 2867 Contra Costa Alkaline plains, Byron. Comment
  JEPS116852  Lasthenia glaberrima David Gowen 2007-4-16 678 Contra Costa Briones Regional Park in vernal depression northeast of Sindicich Lagoon. Comment
  JEPS33979  Lasthenia glabrata subsp. glabrata W. L. Jepson 1925-4-26 10686 Contra Costa in Black Hills Mt. Diablo, Black Hills Comment
  CAS-BOT-BC352803  Lasthenia glabrata subsp. glabrata A. Kellogg 1877-4-1 31 Contra Costa Mount Diablo: Mitchell-Pine divide, northernmost 2750 ft. point 838 Comment
  JEPS105698  Lasthenia glabrata subsp. glabrata David Gowen 2004-4-18 33 Contra Costa Black Diamond Mines Regional Preserve. South side of the valley opposite the Nortonville townsite. Comment
  RSA31360  Lasthenia glabrata subsp. glabrata Joseph A. Ewan 1935-5-26 9300 Contra Costa E slope Bald Peak, San Pablo Ridge. 549 Comment
  UC62988  Lasthenia gracilis H. M. Hall 1901-4-5 1744 Contra Costa lower slopes Mt. Diablo Comment
  CAS-BOT-BC361123  Lasthenia microglossa Mary L. Bowerman 1932-3-27 1141 Contra Costa Mitchell Rock: Mount Diablo Comment
  UC34480  Lasthenia microglossa Chesnut and Drew 1889-4-17 Contra Costa Clayton Comment
  CAS-BOT-BC361122  Lasthenia microglossa Brandegee date not specified s.n. Contra Costa Antioch Comment
  RSA721598  Lasthenia microglossa Mary L. Bowerman 1979-4-10 s.n. Contra Costa Mount Diablo. Mitchell Canyon opposite upper end of old reservoir. 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
  UC2070483  Lasthenia microglossa Barbara Ertter 2003-3-28 18116 Contra Costa Round Valley Regional Preserve, ca 1 mile west of trailhead. Comment
  UC1301068  Lasthenia minor Helen K. Sharsmith 1963-4-7 5297 Contra Costa near Byron 7 Comment
  UC1543176  Lasthenia minor Donald G. Nelson 1937-3-30 470 Contra Costa s of Byron (railroad tracks, paralleling the highway, on road to Tracy) Comment
  UC191034  Lasthenia minor Katharine Brandegee 1904-5-5 Contra Costa near Antioch; Judsonville Comment
  CDA27128  Lathyrus jepsonii subsp. californicus D. G. Kelch 2007-4-29 7 .204 Contra Costa Carquinez Strait; Richmond; Chevy s Hill N. Hilltop Dr. Comment
  CAS-BOT-BC205014  Lathyrus jepsonii var. jepsonii Walter Knight; Irja Knight; John Thomas Howell; Elizabeth McClintock; Stephen P. Rae; Bob Doyle 1978-9-5 3227 Contra Costa Botany Cove, Browns Island, delta region of the San Joaquin River Comment
  JEPS107088  Lathyrus latifolius Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14671 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay, northwest corner of area. Comment
  JEPS99995  Lathyrus latifolius G. Smick 2003-5-30 GAS 199 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CHSC39488  Lathyrus sulphureus Tyler Williams; V. Oswald 1984-4-18 21 Contra Costa Mt. Diablo. Ca. 5 yd e of turnout on Summit Rd., 0.1 mi e of Junction Ranger Station in Mount Diablo State Park. 609 Comment
  CDA964  Lathyrus vestitus D. G. Kelch 2004-4-26 4 .13 Contra Costa East Bay; Richmond: Miller-Knox Park, N side. Comment
  UC764680  Lathyrus vestitus R. F. Hoover 1941-4-12 4844 Contra Costa w branch of San Pablo Creek San Pablo Creek Comment
  UCD35904  Lathyrus vestitus Beecher Crampton 1966-4-26 7667 Contra Costa ca. 2.5 miles west of Martinez on the road to Crockett. Comment
  UC15363  Lathyrus vestitus var. vestitus W. H. Brewer 1862-4-30 Contra Costa Monte Diablo Comment
  UC764798  Lathyrus vestitus var. vestitus R. F. Hoover 1938-2-21 2757 Contra Costa Point Richmond Comment
  JEPS100063  Lavatera cretica A. Langston 2003-7-7 AL 59 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  POM181462  Layia chrysanthemoides I. L. Wiggins 1930-4-17 4572 Contra Costa 1/4 mi. S. of Byron. Comment
  JEPS13505  Layia gaillardioides Robert F. Hoover 1936-4-16 973 Contra Costa e slope of Bald Peak e of Tilden Regional Park; San Pablo Ridge Comment
  UC691554  Layia gaillardioides Mary L. Bowerman 1932-4-16 1351 Contra Costa n of Eagle Point; Eagle Point Ridge Comment
  UC2027818  Layia gaillardioides Barbara Ertter with Stu Garrett 1997-3-29 15531 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  UC2042962  Layia gaillardioides Barbara Ertter with D. Gowen, J. Ginochio, M. Park, S. Matson, A. Moore, S. D'Alcamo, J. Greenhouse, K. Kersh and J. Gawthrup 2005-5-8 18569 Contra Costa Ginochio property on west side of Mount Diablo, connector road across serpentine ridge from Olofson Homestead to Government Road. Comment
Read comments
Feb 13 2016
  JEPS13426  Layia glandulosa R. F. Hoover 1937-5-14 2115 Contra Costa Comment
  POM267968  Layia hieracioides D. D. Keck 1941-6-5 5307 Contra Costa Berkeley Hills, Fish Creek Road 1/4 mile W of E portal of Broadway Tunnel. 335 Comment
  CAS-BOT-BC370664  Layia platyglossa Alice Eastwood 1921-4-18 10279 Contra Costa Antioch Comment
  SBBG28031  Layia platyglossa L. S. Rose 1933-4-17 33093 Contra Costa Antioch Comment
  UC828944  Layia platyglossa Lewis S. Rose 1933-4-17 33093 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
  RSA721283  Layia platyglossa subsp. platyglossa Barbara Ertter, Brad Olson, Dianne Lake 1996-4-14 14589 Contra Costa North Peak of Mt. Diablo 1098 Comment
  UC1100312  Leersia oryzoides Malcolm A. Nobs 1948-9-23 681 Contra Costa 7 mi s of Kingston (Rock Slough); Rock Slough Comment
  UC2029072  Lemna gibba Barbara Ertter 2000-7-16 17412 Contra Costa Turtle Rock Ponds on east side of Pine Creek, west side of Mount Diablo. Comment
  UC692082  Lemna minuscula Mary L. Bowerman 1933-9-9 2430 Contra Costa Mount Diablo, (spring which feeds Frog Pond) Mount Diablo Comment
  UC692083  Lemna minuscula Mary L. Bowerman 1932-8-27 1518 Contra Costa s of Turtle Rock (Mount Diablo); Mount Diablo Comment
  UC691410  Lepechinia calycina Mary L. Bowerman 1938-5-28 3638 Contra Costa Mount Diablo North Road 5.4 miles from North Gate 457 Comment
  JEPS111001  Lepechinia calycina W. L. Jepson 1921-11-19 9522 Contra Costa Chamise ridge, Mt. Diablo Comment
  OBI15025  Lepidium acutidens Robert F. Hoover 1967-4-28 10507 Contra Costa Byron Hot Springs Comment
  UCD77805  Lepidium acutidens Robert E. Preston 1997-3-8 1017 Contra Costa Black Diamond Mines Regional Park, along Stewartsville Trail 137 Comment
  CAS-BOT-BC88703  Lepidium acutidens John Thomas Howell 1933-3-29 10894 Contra Costa Nortonville. Comment
  RSA0033849  Lepidium coronopus Barbara Ertter 1999-7-17 16762 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, Rifle Range Road. Comment
  CHSC67910  Lepidium dictyotum var. acutidens James D. Jokerst 1989-3-29 3068 Contra Costa 0.25 mi S of Byron Hot Springs NE of Livermore. Comment
  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
  UC1607702  Lepidium latifolium Barbara Ertter 1991-5-12 9810 Contra Costa sw corner El Cerrito (n of park); San Francisco Bay, Point Isabel Regional Shoreline Comment
  CAS-BOT-BC89717  Lepidium latifolium Walter Knight; Harry Reeves 1979-8-21 3411 Contra Costa East of reservoir. Contra Loma Regional Park, Antioch. 22 Comment
  CAS-BOT-BC89764  Lepidium latipes Mary L. Bowerman 1933-4-15 1846 Contra Costa Mount Diablo. Canyon south of Arroyo del Cerro. Comment
  JEPS53652  Lepidium latipes W. L. Jepson 1931-4-5 15720 Contra Costa Nortonville 396 Comment
  UC10641  Lepidium latipes W. H. Brewer 1862-4-24 985 Contra Costa Camp 68 Martinez Comment
  CAS-BOT-BC89890  Lepidium nitidum Alice Eastwood 1914-3-14 3766 b Contra Costa Byron Springs. Comment
  CAS-BOT-BC89897  Lepidium nitidum Lewis S. Rose 1933-3-29 33045 Contra Costa Pittsburg. Comment
  CHSC67205  Lepidium nitidum James D. Jokerst 1991-3-28 3227 Contra Costa Kellogg Reservoir Inundation Zone at 'Upper Greasewoods,' N of Livermore. Comment
  RSA128365  Lepidium nitidum P. H. Raven 1950-3-5 1403 Contra Costa 0.75 mile from place where it meets Orinda - Richmond Road, Bear Creek Road. 107 Comment
  RSA34732  Lepidium nitidum R. C. Rollins 1946-3-25 3044 Contra Costa Western slope of Mount Diablo. Comment
  RSA34733  Lepidium nitidum R. C. Rollins 1946-3-25 3042 Contra Costa Western slope of Mount Diablo. Comment
  JEPS100081  Lepidium nitidum var. nitidum G. Smick 2003-3-4 GAS 60 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site 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
  SEINET11263174  Lepidium oxycarpum Barbara Ertter, Dale Sanders; Dan Norris 1994-3-26 12337 Contra Costa Peyton Hill E of I-680, E of Martinez. South of Waterfront Road, west foot of hill near edge of marsh.; 0 Comment
  CDA37901  Leptochloa fascicularis D. G. Kelch, Mike Perlmutter 2011-9-23 11 .756 Contra Costa Entry to Discovery Bay. Comment
  RSA77965  Leptosiphon ciliatus Verne Grant, Alva Grant 1948-5-15 8503 Contra Costa Wooded north-facing slopes of Sommerville Range, on Summerville- Antioch road Comment
  POM65854  Leptosiphon liniflorus C. F. Baker 1903-4-27 2864 Contra Costa Byron. Comment
  RSA114063  Leptosiphon liniflorus H. L. Mason 1952-4-14 14265 Contra Costa 3.5 miles S of Byron Comment
  UC2027920  Leptosiphon pygmaeus subsp. continentalis Barbara Ertter, Dan Norris 2001-4-8 17582 Contra Costa Lime Ridge Open Space east of Walnut Creek, high part of main ridge. Comment
  UC87925  Lessingia glandulifera K. Brandegee 1883-1 Contra Costa Antioch Comment
  CAS-BOT-BC324119  Lessingia glandulifera var. glandulifera T. S. Brandegee 1883-1-1 s.n. Contra Costa Antioch Comment
  JEPS79353  Lessingia pectinata var. tenuipes Edward Lee with Annetta Carter 1935-8-17 1621 Contra Costa Antioch Comment
  UC1051216  Leucospermum nutans N. Floy Bracelin 1945-5-6 2968 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1818997  Leymus Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14629 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
  RSA63664  Leymus condensatus Milo S. Baker 1950-5-22 12226 Contra Costa Roadside between Martinez and Pt. Costa Comment
  SEINET10595833  Leymus condensatus Alan A. Beetle 1941-6-24 Beetle 1751 Contra Costa Pt. Richmond on San Francisco Bay, dense stand under Quercus. Comment
  CAS-BOT-BC272211  Leymus triticoides A. A. Beetle 1941-6-24 1751 Contra Costa Pt. Richmond on San Francisco Bay Comment
  JEPS129822  Leymus triticoides Dean G. Kelch 2006-6-23 06 .321 Contra Costa West Valona. West of the Zampa Bridge above San Pablo Ave. Comment
  RSA108325  Leymus triticoides Frank W. Gould 1941-5-8 1289 Contra Costa Wastelands along Bay at Winehaven (near Richmond) Comment
  RSA108362  Leymus triticoides Frank W. Gould 1941-5-6 1286 Contra Costa 2.3 miles from Walnut Creek on Danville road. Comment
  UCD87711  Leymus triticoides Nougart 1916-12-1 s.n. Contra Costa Walnut Creek. Comment
  UC2029157  Leymus triticoides Barbara Ertter 2000-7-29 17448 a Contra Costa Lower Donner Canyon just above Donner Cabin site, on north side of Mount Diablo. Comment
  JEPS65188  Lilaea scilloides L. R. Heckard 1971-4-15 2479 Contra Costa s of Byron (at intersection of Holey Road) Comment
  UC1178018  Lilium pardalinum Herbert L. Mason 1955-7-14 14633 Contra Costa 0.5 mi e Antioch Bridge Comment
  UC692008  Lilium pardalinum Mary L. Bowerman 1935-3-16 2741 Contra Costa e fork Arroyo del Cerro (on canyon floor immediately above spring); Mount Diablo 289 Comment
  UC1057450  Limnanthes douglasii subsp. nivea G. Thomas Robbins 1937-4-25 150 Contra Costa near Walnut Creek Comment
  UC17899  Limnanthes douglasii subsp. nivea W. H. Brewer 1862-4-30 1009 Contra Costa Camp 69 Walnut Creek Comment
  JEPS21834  Limnanthes douglasii subsp. rosea Bryce G. Decker 1958-4-13 39 Contra Costa junction of Holey Road and Byron Highway Comment
  UC615175  Limnanthes douglasii subsp. rosea Beryl O. Schreiber 1932-3-27 158 Contra Costa Byron Hot Springs Comment
  UC1563678  Limonium californicum Barbara Ertter with Elizabeth Neese 1988-10-15 7981 Contra Costa El Cerrito; marsh w of I-580, w side along Rydin Road n of Central Ave. Comment
  UCD33426  Linanthus Beecher Crampton 1968-3-27 8232 Contra Costa SE corner of County, ca. 3.5 miles south of Byron. Comment
  UC691636  Linanthus androsaceus Mary L. Bowerman 1933-4-15 1861 Contra Costa 2nd ridge se Arroyo del Cerro; Mount Diablo Comment
  UC880306  Linanthus androsaceus Lewis S. Rose 1940-4-30 40253 Contra Costa 8 mi se Clayton; Marsh Creek 30 Comment
  UC23395  Linanthus bicolor Harley P. Chandler 1901-4-5 946 Contra Costa Pine Canyon; Mt. Diablo Comment
  UC367216  Linanthus ciliatus J. G. Lemmon Contra Costa Mount Diablo Comment
  UC1050873  Linaria maroccana N. Floy Bracelin 1941-5-11 1302 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  UC2062459  Linum bienne Barbara Ertter 2002-5-16 17852 Contra Costa Richmond Field Station (UC-Berkeley) at end of Lark Lane. Comment
  POM138838  Linum grandiflorum C. F. Baker 1903-4-28 s.n. Contra Costa Byron? Comment
  CHSC59814  Lithophragma affine Willis Ball 1975-3-26 518 Contra Costa On n facing slope of large hill ca. 500 yds s of main parking lot, in area #8, 780 yds w of Contra Loma Blvd., Contra Loma Regional Park. 121 Comment
  UC1618055  Lithophragma affine Donald G. Nelson 1937-3-30 467 Contra Costa along Marsh Creek Road between Claytonville and Byron; Marsh Creek Road Comment
  UC570875  Lithophragma affine H. L. Mason 1932-3-20 6843 Contra Costa Antioch Sand Hills Comment
Read comments
Oct 9 2006
  RSA0068477  Lithophragma affine Katie Gallagher, Nick Jensen 2014-4-26 201 Contra Costa Las Trampas Regional Wilderness. 487 Comment
  UC2028406  Lithophragma bolanderi Barbara Ertter with Christopher Baysdorfer 1998-5-10 16109 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, along Ohlone Trail Comment
  CDA945  Lithophragma heterophyllum D. G. Kelch 2006-5-4 6 .124 Contra Costa Carquinez Strait; Vaca Canyon, on North facing road cut/bank along Alhambra Valley Road. Comment
  CHSC107516  Lithophragma heterophyllum D. G. Kelch 2006-5-4 06 .124 Contra Costa Coast Range: Vaca Canyon, on North facing road cut/bank along Alhambra Valley Road. 162 Comment
  CHSC107534  Lithophragma heterophyllum D. G. Kelch 2006-5-4 06 .124 Contra Costa Coast Range: Vaca Canyon, on North facing road cut/bank along Alhambra Valley Road. 162 Comment
  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
  UC2028178  Lithophragma heterophyllum Barbara Ertter 1998-5-3 16041 a Contra Costa Dusty Road at north end of Wall Point Ridge, southwest flank of Mount Diablo. Comment
  UC32010  Logfia filaginoides Harley P. Chandler 1901-4-5 963 Contra Costa Mt. Diablo Comment
  UC606726  Logfia gallica Edward Lee 1936-4-19 1991 Contra Costa summit Red Rock Island; San Francisco Bay, Red Rock Island 54 Comment
  UC38784  Lolium multiflorum J. Burtt Davy 1897-9-4 4078 Contra Costa Stege Comment
  UC697122  Lolium multiflorum Mary L. Bowerman 1938-5-25 3630 Contra Costa by North Road, Arroyo del Cerro Mount Diablo (Mount Diablo); , North Road 109 Comment
  SEINET2074966  Lolium multiflorum S. J. Gibbs 1970-3-27 Contra Costa Oak View Terrace, 3 mi. N.E. of P.O. 121 Comment
  CDA9485  Lolium perenne D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .21 Contra Costa Byron Airport. Comment
  POM206078  Lolium perenne subsp. multiflorum Jos Burtt Davy 1897-9-9 1674 Contra Costa Stege Comment
  UC691198  Lolium temulentum Mary L. Bowerman 1935-5-16 3006 Contra Costa e side of North Peak Mount Diablo (behind Gabriel-Hinks'); , (e side of North Peak) 289 Comment
  UCD127622  Lomatium dasycarpum P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  POM301010  Lomatium macrocarpum Mary L. Bowerman 1931-4-25 762 Contra Costa Mt. Diablo, near junction of south and west roads Comment
  UC691781  Lomatium macrocarpum Mary L. Bowerman 1931-6-2 917 Contra Costa n. of 1924 point North Peak (Mt. Diablo); Mt. Diablo Comment
  UC692363  Lomatium nudicaule Mary L. Bowerman 1935-6-15 3127 Contra Costa Mt. Diablo, Mitchell-Pine divide, also large grassy ridge running n. Mt. Diablo, Mitchell-Pine divide 609 Comment
  UC21269  Lomatium utriculatum Alice Eastwood 1894-5-3 Contra Costa Antioch Comment
  JEPS111772  Lonicera hispidula var. vacillans D. G. Kelch 2004-5-2 04 .167 Contra Costa Crockett - Edwards Canyon 125 Comment
  UC691480  Lonicera hispidula var. vacillans Mary L. Bowerman 1930-6-18 346 Contra Costa Dan Cook Canyon Mount Diablo Comment
  POM181453  Lonicera involucrata Ira L. Higgins 1930-4-18 4594 Contra Costa Levee, east end of Jersey Island. Comment
  UC650409  Lonicera involucrata var. ledebourii Ira L. Wiggins 1930-4-18 4594 Contra Costa levee on e end Jersey Island Comment
  UC1050013  Lonicera korolkowii N. Floy Bracelin 1941-8-3 2688 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1050675  Lonicera pileata f. yunnanensis N. Floy Bracelin 1941-4-20 1183 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1005847  Lonicera tatarica N. Floy Bracelin 1945-4-1 2840 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS55420  Lotus crassifolius var. crassifolius Milo S. Baker 1904-6-24 Contra Costa Summit of Mt. Diablo Comment
  UC692569  Lotus crassifolius var. crassifolius Mary L. Bowerman 1931-5-16 862 Contra Costa Meridian Peak summit Mount Diablo Comment
  UC692531  Lotus humistratus Mary L. Bowerman 1931-5-7 802 Contra Costa North Peak Ridge Mount Diablo 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
  JEPS25107  Lotus scoparius G. Thomas Robbins 1959-4-12 3983 Contra Costa about 0.5 mi sw junction of Hoffmann Blvd. and S. 25th St. 6 Comment
  JEPS75468  Lotus scoparius P. F. Yorks 1975-5-15 402 Contra Costa n of Briones Reservoir (ca 1.5 km s of Bear Creek Road on Hampton Road in Hampton Road Natural Reserve) Comment
  UC33560  Lotus strigosus Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  JEPS116857  Lotus strigosus David Gowen 2007-4-13 673 Contra Costa On dirt road junction (Ridge Trail) between Castle Rock Recreation Area and Borges Ranch. Comment
  POM300705  Lotus wrangelianus Mary L. Bowerman 1933-5-2 1949 Contra Costa Below Pioneer Camp; Mount Diablo. 762 Comment
  UC201036  Lupinus Katharine Brandegee 1918-6-5 Contra Costa Richmond Annex Comment
  UC15760  Lupinus affinis unknown 996 Contra Costa Martinez Comment
  UC149913  Lupinus affinis Katharine Brandegee 1911-7-6 Contra Costa along the RR near Point Isabel; along the RR near Point Isabel Comment
  CHSC21637  Lupinus albifrons Willis Ball 1975-3-9 486 Contra Costa In area #8. On n facing slope of large hill ca. 510 yds s of main parking lot ca. 750 yds w of Contra Loma Blvd. 124 Comment
  SEINET5766808 Image available Lupinus albifrons var. albifrons A. A. Heller 1908-1 8887 Contra Costa Antioch 12 Comment
  UC692521  Lupinus albifrons var. albifrons Mary L. Bowerman 1931-4-25 785 Contra Costa between junction of one-way roads and top Meridian Peak summit (Mount Diablo); , Meridian Peak summit 1158 Comment
  UC692573  Lupinus albifrons var. albifrons Mary L. Bowerman 1931-4-5 676 Contra Costa below Gregory Ranch Mount Diablo (Mt. Diablo) Comment
  UC864982  Lupinus albifrons var. albifrons Alice Eastwood 1915-5-30 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC201379  Lupinus albifrons var. albifrons John H. Thomas 1953-4-25 3007 Contra Costa Antioch Sand Hills along San Joaquin River, 0.2 miles west of Antioch Bridge Comment
  UC1129460  Lupinus albifrons var. collinus H. S. Yates 1934-9-2 4033 Contra Costa 2 mi nw Orinda; Concord Quad., nw of Orinda 304 Comment
  CDA27417  Lupinus bicolor D. G. Kelch, A. G. Murdock 2005-4-15 5 .146 Contra Costa Carquinez Strait Region; Rodeo Creek. EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump). Comment
  CHSC21618  Lupinus bicolor Willis Ball 1974-4-21 428 Contra Costa Contra Loma Regional Park. In area #1. On n side of road leading to main parking lot ca. 150 yds e of lot. One yd. n of road. 38 Comment
  JEPS111410  Lupinus bicolor J. Shade 2009-4-20 Contra Costa Robert Sibley Volcanic Regional Preserve. On Loop Trail, by cliff overlooking Quarry pit. 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
  JEPS112414  Lupinus bicolor Dean G. Kelch and Andrew G. Murdock 2005-4-15 05 .146 Contra Costa Rodeo Creek; county: Contra Costa; EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump). Comment
  JEPS89588  Lupinus bicolor Dean W. Taylor 1971-4-3 1045 Contra Costa slope near summit Mt. Diablo; S. Coast Ranges, Mt. Diablo Comment
  UC33589  Lupinus bicolor J. P. Tracy 1900-3-24 624 Contra Costa Point Richmond San Francisco Bay, Point Richmond (Dry Hill) 15 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
  UCR12074  Lupinus bicolor Coleta A. Lawler 1964-5-8 057 Contra Costa San Francisco Bay Region, Hampton Road, 3 .7 mi south of junction with Alhambra Valley Road; c. 10 miles northwest of Lafayette 46 Comment
  UC33550  Lupinus bicolor Prof. Greene 1888-5-1 Contra Costa near Moraga V.; near Moraga V. Comment
  UCD32372  Lupinus bicolor Beecher Crampton 1950-4-1 498 c Contra Costa 1 mile north of Richmond, near S.P. Railroad tracks. 15 Comment
  SEINET10485223  Lupinus densiflorus Frenkel 1964-4-18 FRENKEL 424 Contra Costa 2.1 mi. E of danville on tassajara rd. 130 Comment
  UC692273  Lupinus microcarpus var. densiflorus Mary L. Bowerman 1930-6-10 293 Contra Costa near Mineral Spring Mount Diablo (Mount Diablo) 396 Comment
  UC697194  Lupinus microcarpus var. densiflorus Mary L. Bowerman 1930-6-28 385 Contra Costa road above junction Mount Diablo (Mount Diablo) Comment
  JEPS111540  Lupinus microcarpus var. microcarpus Dean G. Kelch and Andrew G. Murdock 2005-5-6 05 .224 Contra Costa Franklin Canyon; County: Contra Costa; East of Christie Road. South of Route 4. Franklin Canyon, Contra Costa, CA. Comment
  UC15961  Lupinus microcarpus var. microcarpus J. Burtt Davy April 1895 Contra Costa Antioch Comment
  UC201022  Lupinus microcarpus var. microcarpus Katharine Brandegee 1918-6-19 Contra Costa Richmond Annex; El Dorado St. Comment
  UC201023  Lupinus microcarpus var. microcarpus Katharine Brandegee June 1918 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
  UC692572  Lupinus microcarpus var. microcarpus Mary L. Bowerman 1931-4-4 657 Contra Costa North Road 4.5 mi from North Gate Mount Diablo (bank above road); Mount Diablo Comment
  SBBG45227  Lupinus microcarpus var. microcarpus Leota Davidson 1966-5-2 335 Contra Costa Hwy 24 near Claremont Hotel, Berkeley hills Comment
  JEPS111411  Lupinus nanus J. Shade 2009-4-20 Contra Costa Robert Sibley Volcanic Regional Preserve. On Loop Trail, by cliff overlooking Quarry pit. Comment
  RSA120097  Lupinus nanus subsp. nanus L. D. Christenson 1935-4-11 78 Contra Costa East of Mt. Diablo. Comment
  RSA0027639  Lupinus pachylobus Barbara Ertter, Tony Morosco 1998-4-12 16002 Contra Costa Base of Mount Olympia on north side of Mount Diablo, slope above quarry NE of Olympia Trail, with numerous outcrops. 518 Comment
  UC692272  Lupinus succulentus Mary L. Bowerman 1931-3-21 588 Contra Costa Sycamore Canyon Sycamore Canyon, Mount Diablo (Mount Diablo); , Sycamore Canyon 335 Comment
  PASA1681  Lupinus succulentus Annetta Carter 1929-3-31 Contra Costa Hills north of Mt. Diablo, near Clayton Comment
  POM181435  Lupinus succulentus I. L. Wiggins 1930-4-7 4567 Contra Costa Near Mountain Horse, Altamont Pass Comment
  SEINET8057995  Lupinus succulentus H. E. Hodge 1956-4-7 13 Contra Costa Tice Canyon Road in Walnut Creek 61 Comment
  UC2028483  Luzula comosa Barbara Ertter 1998-5-3 16040 Contra Costa SW fork of Pine Creek between Pine Ridge and Wall Point Ridge, southwest base of Mount Diablo Comment
  CDA5759  Lycium chinense T. C. Fuller 1964-11-6 12810 Contra Costa Knightsen. 0 Comment
  JEPS78624  Lythrum californicum Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3281 Contra Costa Browns Island, Botany Cove Browns Island; , Botany Cove Comment
  OBI78277  Lythrum californicum D. G. Kelch 1996-10-17 s.n. Contra Costa CA Dept. Food & Ag CDA; Carquinez Strait: Pt. Edith Marsh 1 Comment
  UC692631  Lythrum californicum Mary L. Bowerman 1930-9-27 461 Contra Costa (2 mi by road from North Gate (at trough, take trail to west, follow to fence and go through), Mount Diablo); Mount Diablo Comment
  RSA0014832  Lythrum californicum Mary L. Bowerman 1933-8-26 2416 Contra Costa Mount Diablo: Spring at top of south road. Comment
  UC2028361  Lythrum hyssopifolia Barbara Ertter with Tony Morosco 1998-7-11 16364 Contra Costa North base of Mount Diablo, margin of small pond on north side of Bruce Lee Road east of Mitchell Canyon staging area Comment
  UC1789169  Lythrum tribracteatum Barbara Ertter 2005-8-18 18642 Contra Costa San Pablo Reservoir in East Bay Hills, east of San Pablo Dam Road between Richmond and Orinda; abundant on mudflats left by receding reservoir, mostly dried. Comment
Read comments
May 27 2008
  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
  UC2043259  Maclura pomifera Barbara Ertter with David Gowen 2005-1-16 18539 Contra Costa Upper Dunn Creek below Olympia Trail on north side Mt. Diablo. Comment
  CAS-BOT-BC342682  Madia elegans Alice Eastwood 1915-5-30 4462 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC344324  Madia exigua Joseph Andorfer Ewan 1936-5-24 9693 Contra Costa West slope Bald Peak, San Pablo Ridge Comment
  UC697171  Madia exigua Mary L. Bowerman 1931-5-19 867 Contra Costa Donner Canyon trail Mount Diablo 274 Comment
  UC89385  Madia exigua Katharine Brandegee May 1885 Contra Costa Antioch Comment
  CAS-BOT-BC344328  Madia exigua T. S. Brandegee 1885-5-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC342981  Madia gracilis Barrett Anderson 1987-4-30 3499 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD 125 Comment
  CDA29558  Madia gracilis D. G. Kelch, Troy MacGregor 2009-5-1 9 .27 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  UC697160  Madia gracilis Mary L. Bowerman 1933-5-8 2018 Contra Costa near crest Fossil Ridge (on n side by side road); Mount Diablo Comment
  UC112946  Madia radiata Mrs. K. Brandegee 1908-4-9 50 Contra Costa near Antioch Comment
  UC761804  Madia radiata R. F. Hoover 1938-3-25 2898 Contra Costa Lone Tree Valley Comment
  CDA23595  Madia sativa D. G. Kelch 2007-9-8 7 .568 Contra Costa Carquinez Strait; Pinole Valley Park. Comment
  CDA42364  Madia sativa D. G. Kelch, Vince Guise 2012-7-26 12 .239 Contra Costa Wildcat Canyon Park, Alvarado Unit. Comment
  CAS-BOT-BC343582  Madia sativa David D. Keck 1933-11-2 2614 Contra Costa 1 mi. W. of Avon, N. Contra Costa County Comment
  CAS-BOT-BC343583  Madia sativa David D. Keck 1941-6-5 5309 Contra Costa Berkeley Hills, Fish Creek Road, near east portal of Broadway Tunnel 335 Comment
  CDA18027  Madia sativa B. Case 1999-7-6 PDR 004802 Contra Costa on Norris Canyon Rd., San Ramon. 0 Comment
  CHSC117387  Malacothamnus fasciculatus Barbara Ertter; Tony Morosco 1998-9-18 16417 Contra Costa West edge Lime Ridgde Open Space northwest of Mount Diablo, chaparral at base of hills. Comment
  UC2028014  Malacothamnus fasciculatus Barbara Ertter 1997-9-14 15821 Contra Costa Southwest side of Mount Diablo, Wall Point Road at head of Emmons Canyon. Comment
  UC2028245  Malacothamnus fasciculatus Barbara Ertter, Tony Morosco 1998-9-18 16417 Contra Costa West edge Lime Ridge Open Space northwest of Mount Diablo. Comment
  CAS-BOT-BC206327  Malacothamnus fremontii Elizabeth McClintock 1967-10-22 184 Contra Costa Nortonville Comment
  RSA0027418  Malacothamnus fremontii Barbara Ertter, Joanne Kerbavaz, Mary Bowerman 2000-8-20 17516 Contra Costa South side of Mount Diablo, Pioneer Horse Camp. 884 Comment
  UC2029010  Malacothamnus fremontii Barbara Ertter with Dan Norris 1999-11-14 16853 Contra Costa Black Diamond Mines Regional Preserve, chaparral patch below east half of Miners Trail. Comment
  RSA262369  Malacothamnus hallii Don C. Elfving 1964-4-26 62 Contra Costa North Gate Road, 3 miles from base of Mt. Diablo Comment
  UC692676  Malacothamnus hallii Mary L. Bowerman 1933-6-3 2223 Contra Costa 2 mi by road from North Gate; Mount Diablo Comment
  CAS-BOT-BC204089  Malacothamnus hallii Lewis S. Rose 1954-6-29 54082 Contra Costa Mt. Diablo 2 1/2 mi. n. of Turtle Rock 182 Comment
  CAS-BOT-BC204090  Malacothamnus hallii Volney Rattan 1886-6-14 s.n. Contra Costa Mouth of Pine Canon [Canyon]. Foot of Mount Diablo Comment
  SEINET10853324 Image available Malacothamnus hallii John Thomas Howell 1931-5-12 Howell 6470 Contra Costa Nortonville. Comment
  UC691435  Malacothrix clevelandii Mary L. Bowerman 1932-4-16 1337 Contra Costa s 1682 point (Eagle Point Ridge, Mount Diablo); Mount Diablo 502 Comment
  CAS-BOT-BC345455  Malacothrix coulteri Kellogg; Bloomer 1869-5-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC347392  Malacothrix floccifera Alice Eastwood 1915-5-30 4516 Contra Costa Mt. Diablo Comment
  UC691447  Malacothrix floccifera Mary L. Bowerman 1933-4-25 1908 Contra Costa ridge ese North Peak; Mount Diablo Comment
  UC691449  Malacothrix floccifera Mary L. Bowerman 1935-6-1 3105 Contra Costa e of Mitchell-Pine divide (second small ridge, bottom of s face); Mount Diablo 975 Comment
  UCD134393  Malacothrix floccifera P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  CDA37265  Malva neglecta D. G. Kelch 2011-3-31 11 .069 Contra Costa Carquinez Strait Region; Richmond, near Point Pinole Regional Park. Comment
  UC1795778  Malva parviflora Barbara Ertter, Mary Bowerman 1995-6-11 14248 Contra Costa Shell Ridge Recreation Area southeast of Walnut Creek, at west base Mt. Diablo.; annual grassland near Indian Valley School entrance, clay soil (planted Clarkia also present). 91 Comment
  RSA0004204  Malvastrum hallii H. M. Hall, F. M. Essig 1916-5-30 10131 Contra Costa Mt. Diablo, westerly side north of Pine Canon. 275 Comment
  JEPS111541  Malvella leprosa A. G. Murdock 2004-6-4 315 Contra Costa Martinez - Along creek at Martinez train station 2 Comment
  JEPS111545  Malvella leprosa D. G. Kelch 2004-7-9 04 .306 Contra Costa Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite 60 Comment
  UCD150880  Malvella leprosa James A. Neilson Jr. 1972-11-2 3618 Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 1 Comment
  JEPS42516  Marah fabacea W. L. Jepson 1922-5-11 9648 Contra Costa North Berkeley Hills Comment
  POM226096  Marah fabacea J. T. Howell 1933-3-29 10902 Contra Costa Nortonville hills. Comment
  UC2028044  Marah fabacea Barbara Ertter 1998-3-1 15924 Contra Costa Diablo Foothills Regional Park, Ridge Trail on ridge east of Old Borges Ranch. Comment
  CHSC46893  Marah oregana R. A. Schlising 1965-4-6 2780 Contra Costa Berkeley Hills. Comment
  CHSC46896  Marah oregana R. A. Schlising 1965-4-6 2775 Contra Costa Berkeley Hills. Comment
  JEPS37068  Matricaria discoidea W. L. Jepson 1922-5-18 9647 Contra Costa Berkeley 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
  CDA29088  Medicago arabica D. G. Kelch 2006-5-7 6 .15 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  RSA195482  Medicago arabica C. R. Gunn 1963-5-31 2659 Contra Costa Contra Cost County: Tilden Park, Berkeley at intersection of Shasta and Oak Hill Roads Comment
  CDA29123  Medicago polymorpha D. G. Kelch 2006-5-7 6 .151 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  CHSC21646  Medicago polymorpha Willis Ball 1975-3-2 476 Contra Costa Contra Loma Regional Park. In area #4. On e side of lake ca. 100 yds s of dam. 30 Comment
  UC1197429  Medicago polymorpha Joseph P. Tracy 1934-4-30 13190 Contra Costa between Lafayette and Moraga 152 Comment
  SEINET3383301 Image available Melica californica Mary Bowerman 1991-5-21 Contra Costa Mount Diablo. Jim White Trail(Deer Flat Rd) South side of Juniper Moses Rock Trail near Deer Flat junction Comment
  UC1948964  Melica californica William J. Ferlatte, L. Maynard Moe 1970-4-27 1260 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC53673  Melica californica J. Burtt Davy 1900-3-24 6521 Contra Costa Point Richmond Comment
  UC606736  Melica californica Edward Lee 1936-4-19 1957 Contra Costa ne shore Red Rock; San Francisco Bay Comment
  UCD87145  Melica californica P. B. Kennedy 1916-5-1 s.n. Contra Costa Pinehurst. Comment
  CAS-BOT-BC271217  Melica californica Niall McCarten; V. I. Dains 1986-6-1 03251142 Contra Costa W. of Camino Diablo and Kellogg Creek Comment
  POM300621  Melica imperfecta Mary L. Bowerman 1935-5-3 2956 Contra Costa Fossil Ridge: Hillside below the Jungle of the Garden Gods. Mount Diablo. 457 Comment
  UC585495  Melica imperfecta Virginia E. Long 1933-6-14 221 a Contra Costa sse along first w fork Curry Creek trail; Mt. Diablo Comment
  CAS-BOT-BC281432  Melica imperfecta Walter Knight 1972-4-1 s.n. Contra Costa Mallard Slough between Port Chicago and Pittsburg Comment
  UC162940  Melica torreyana C. F. Baker 1903-4-28 2815 Contra Costa Mitchell's Canyon; Mt. Diablo Comment
  UC1948968  Melica torreyana William J. Ferlatte, L. Maynard Moe 1970-4-27 1228 Contra Costa San Francisco Bay: Red Rock Island Comment
  JEPS100114  Melilotus indicus G. Smick 2003-5-20 GAS 195 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS127091  Melilotus indicus Lowell Ahart, Josephine Guardino 2016-4-19 20801 Contra Costa 1.4 miles northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Spring USGS 7.5' Quad. Comment
  POM181458  Melilotus indicus I. L. Wiggins 1930-4-18 4599 Contra Costa Jersey Island Comment
  UC1584858  Mentha aquatica Jerry Powell 1987-9-15 1523 Contra Costa Point Molate; marshy area at creek mouth to beach Comment
  UC2028956  Mentha pulegium Barbara Ertter 2000-7-16 17385 Contra Costa Lower Pine Creek in Diablo Foothills Regional Park. Comment
  RSA0033935  Mentha spicata var. spicata Barbara Ertter, Mary L. Bowerman 1996-11-1 15394 Contra Costa North base of Mount Diablo, downstream from Mitchell Canyon parking lot. Comment
  OBI72118  Mentzelia affinis Barbara Ertter 1991-5-5 9773 Contra Costa Black Diamond Mines Regional Preserve S of Pittsburg, S side of Rose Hill above Nortonville Pass 366 Comment
  CDA33748  Mercurialis ambigua D. G. Kelch 2011-2-5 11 .018 Contra Costa Crockett below Zampa Bridge. 0 Comment
  SEINET200754  Microcala quadrangularis J. P Tracy 1900-3-24 608 Contra Costa Near Stege 3 Comment
  UCD16073  Microlepia strigosa Glen Holstein 1988-2-12 s. n. Contra Costa California. Contra Costa County: City of Danville. Comment
  UCSC008283  Micropus amphibolus Randall Morgan 1989-5-5 1587 Contra Costa Mt. Diablo near mouth of Mitchell Canyon Comment
  RSA184979  Micropus californicus L. S. Rose 1966-4-22 66031 Contra Costa Donner Canyon, north slope of Mount Diablo, south of Clayton 213 Comment
  CDA8378  Micropus californicus var. californicus D. G. Kelch, A. G. Murdock 2004-4-25 4 .125 Contra Costa Carquinez Strait Region; Martinez - West: Ozol Rock and Scenic Drive. Hill southwest of large cottonwood. West of Martinez at gated end of Scenic Drive. Comment
  JEPS40631  Micropus californicus var. californicus W. L. Jepson 1922-5-23 9664 Contra Costa Mt. Diablo Comment
  RSA537696  Microseris acuminata Barbara Ertter, Jim Jokerst, Dave Magney 1989-4-5 8118 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  UC2027816  Microseris douglasii Barbara Ertter with Holly Forbes 1997-4-20 15550 Contra Costa North base of Mount Diablo, roadside on trail to Back Creek from Mitchell Canyon trailhead. Comment
  CAS-BOT-BC348886  Microseris douglasii subsp. douglasii Mary L. Bowerman 1933-5-8 2012 Contra Costa Mount Diablo. Fossil Ridge near crest, on north side by side road Comment
  JEPS17890  Microseris douglasii subsp. douglasii Rimo Bacigalupi with G. T. Robbins 1954-3-26 5526 A Contra Costa field along Deer Valley Road; Deer Valley 76 Comment
  UC1070040  Microseris douglasii subsp. douglasii C. M. Belshaw 1936-5-11 2094 Contra Costa 2 mi ene Danville; Mt. Diablo Quad. 243 Comment
  UC1586069  Microseris douglasii subsp. douglasii Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8118 Contra Costa 15 air mi sw Stockton (w and adjacent to Clifton Court Forebay, se Contra Costa County) Comment
  UC565499  Microseris douglasii subsp. douglasii H. L. Mason 1929-3-31 5142 Contra Costa Briones Valley Comment
  CAS-BOT-BC348885  Microseris douglasii subsp. douglasii Brandegee No date on label s.n. Contra Costa Antioch Comment
  POM301040  Microseris douglasii subsp. douglasii Mary L. Bowerman 1933-5-8 2012 Contra Costa Fossil Ridge near crest, on north side by side road, Mount Diablo Comment
  RSA0027886  Microseris douglasii subsp. douglasii Barbara Ertter, Stu Garrett 1997-3-29 15527 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  UC1618256  Microseris douglasii subsp. douglasii Barbara Ertter 1991-5-5 9783 Contra Costa along spur road from Black Diamond Trail on ridge se Coal Canyon (s of Pittsburg); Black Diamond Mines Regional Preserve 426 Comment
  UC1818950  Microseris douglasii subsp. douglasii Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14240 Contra Costa S side Mount Diablo, edge of open meadow in flats near head of Curry Creek along road to Sheepherders Springs from Sloan Road 426 Comment
  UC2027851  Microseris douglasii subsp. douglasii Barbara Ertter with Stu Garrett 1997-3-29 15527 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  UC70182  Microseris douglasii subsp. tenella J. Burtt Davy May 1898 Contra Costa Danville Mount Diablo Region Comment
  UC92185  Microseris douglasii subsp. tenella Katharine Brandegee Contra Costa Brentwood Comment
  CAS-BOT-BC349169  Microseris elegans Brandegee No date on label s.n. Contra Costa Byron Springs Comment
  POM301001  Microseris heterocarpa Mary L. Bowerman 1935-4-19 2849 Contra Costa Mount Diablo: West road 3.5 miles from entrance Comment
  CAS-BOT-BC7486  Microseris leiosperma M. K. Curran 1886-1-1 s.n. Contra Costa Antioch Comment
  CDA41672  Mimulus aurantiacus D. G. Kelch 2005-6-24 5 .383 Contra Costa Carquinez Strait Region; 5th Street Prairie, Crockett. Comment
  JEPS78822  Mimulus aurantiacus var. aurantiacus Edward Lee 1936-5-24 2164 Contra Costa 10 mi from Marsh Creek Road; Morgan Territory Comment
  POM5025  Mimulus cardinalis M. Alice King 1896-07 257 Contra Costa San Pablo Comment
  POM204480  Mimulus guttatus J. T. Howell 1933-5-14 11242 Contra Costa St. Mary's College Comment
  RSA454334  Mimulus guttatus L. S. Rose 1941-3-27 41064 Contra Costa 2 mi. w. of Byron. 46 Comment
  UC103731  Mimulus latidens T. S. Brandegee May 1889 Contra Costa Antioch Comment
  UC886241  Mimulus microphyllus Lewis S. Rose 1941-3-27 41064 Contra Costa 2 mi w Byron 60 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
  CAS-BOT-BC388585  Minuartia douglasii L. R. Abrams 1921-5-25 8026 Contra Costa Summit, Mt Diablo Comment
  UC692296  Minuartia douglasii Mary L. Bowerman 1935-4-22 2889 Contra Costa ridge w Pioneer Road (west of Old Stage Road); Mount Diablo Comment
  CAS-BOT-BC388586  Minuartia douglasii Mary L. Bowerman 1935-4-22 2889 Contra Costa Mount Diablo. Ridge west of Pioneer Road (west of Old Stage Road): Crest of ridge Comment
  UC1795666  Minuartia douglasii Barbara Ertter, Mary Bowerman et al. 1995-5-7 14059 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, open north facing slope around rock outcrops (near creek crossing above woods) with seepage. Comment
  CAS-BOT-BC221680  Monardella douglasii Volney Rattan 1886-6-14 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC220509  Monardella villosa Katharine Brandegee 1907-7-4 s.n. Contra Costa Martinez Comment
  CAS-BOT-BC220515  Monardella villosa Mary L. Bowerman 1938-6-21 3689 Contra Costa Mount Diablo Comment
  CHSC68009  Monardella villosa subsp. villosa James D. Jokerst 1987-6-16 2917 B Contra Costa Livermore Valley, +/- 250 m S of a dirt track. Comment
  JEPS112466  Monardella villosa subsp. villosa A. G. Murdock 2004-5-28 291 Contra Costa Pinole Peak 405 Comment
  POM223335  Monolopia lanceolata L. S. Rose 1935-5-16 35166 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC349611  Monolopia major Ethel Crum 1936-4-6 1741 Contra Costa Two miles west of Byron 45 Comment
  RSA666388  Montia fontana Barbara Ertter 1993-4-17 11511 Contra Costa Morgan Territory 10 air miles N of Livermore, in lee of Mt. Diablo. Shallow side at edge of sandstone outcrop S of Hummingbird trail. 610 Comment
  CDA15240  Myoporum laetum G. F. Hrusa, D. Crowe 1998-5-8 14371 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Comment
  CAS-BOT-BC83287  Myosurus minimus Herbert L. Mason 1952-4-14 14263 Contra Costa 3.5 miles south of Byron. Comment
  CHSC68026  Myosurus minimus James D. Jokerst 1989-3-28 3058 Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. Comment
  UC1101327  Myosurus minimus Herbert L. Mason 1952-4-14 14262 a Contra Costa 3.5 mi s of Byron Comment
  UC650598  Myosurus minimus Ira L. Wiggins 1930-4-17 4580 Contra Costa 1/4 mi s Byron Comment
  UCD96601  Myosurus minimus D. E. Stone 1957-4-4 70 B Contra Costa On State 4, 1 mile south of Byron. Comment
  CAS-BOT-BC7111  Myosurus minimus subsp. apus M. K. Curran 1884-1-1 s.n. Contra Costa Antioch Comment
  HSC104396  Myriophyllum exalbescens M. R. Bell 1950-10-9 Contra Costa Near Concord, from stock pond on farm of E.J. Mangini Comment
  SEINET12765205  Myriophyllum verticillatum Barbara Ertter, Lynne Hosley 1991-9-22 10822 Contra Costa Lafayette Reservoir in hills SW of Lafayette, in water at E end of dam.; 0 137 Comment
  OBI72036  Najas guadalupensis Barbara Ertter, Brad Olson 1991-9-28 10838 Contra Costa San Pablo Reservoir between Orinda and El Sobrante 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
  JEPS102897  Narcissus tazetta Barbara Ertter 1998-1-25 15910 Contra Costa Back Canyon Road at crossroad S of Donner Canyon trailhead Mount Diablo Comment
  CDA31836  Nassella lepida D. G. Kelch 2008-4-24 8 .062 Contra Costa Carquinez Strait; W of Ozol Rock ~2 km W of Martinez. Comment
  RSA217245  Nassella lepida D. E. Breedlove 1970-4-18 17437 Contra Costa At the north edge of Lafayette above Laurel Drive 244 Comment
  UC697123  Nassella lepida Mary L. Bowerman 1935-5-1 2936 Contra Costa North Road 2 mi from North Gate (se exp.); Mount Diablo 182 Comment
  CAS-BOT-BC260128  Nassella pulchra Mary L. Bowerman 1935-4-26 2902 Contra Costa Mount Diablo. W of Indian Ceremonial Spring 1021 Comment
  UC691268  Nassella pulchra Mary L. Bowerman 1935-4-17 2830 Contra Costa West road (= North Rd) 2 mi from entrance (se exposure); Mount Diablo 237 Comment
  UCD36922  Nassella pulchra Beecher Crampton 1956-5-14 3403 Contra Costa Southeastern Mount Diablo, headwaters of Marsh Creek. 640 Comment
  CAS-BOT-BC230253  Navarretia cotulifolia Mrs. Brandegee No date on label s.n. Contra Costa Antioch Comment
  JEPS25390  Navarretia cotulifolia Rimo Bacigalupi with G. T. Robbins and Francia Chisaki 1959-4-14 7003 Contra Costa 8 mi. s. Antioch (low spot in Briones Valley, just off Deer Valley Rd.); Briones Valley 79 Comment
  SEINET12271290  Navarretia mellita J. T. Howell 1938-1 13938 Contra Costa head of Siesta Valley Comment
  JEPS116946  Navarretia nigelliformis subsp. radians David Gowen 2008-4-16 860 Contra Costa West end of Horse Valley. Banks of drainage south of #857. Comment
  UC30208  Navarretia pubescens W. H. Brewer 1862-5-15 1096 Contra Costa Kirker's Pass Comment
  UC2062649  Navarretia pubescens Barbara Ertter 2002-6-22 17961 Contra Costa Bruce Lee Spring Trail east of Donner Canyon on north side of Mount Diablo. Comment
  UCR197889  Navarretia squarrosa Beecher Crampton 1949-6-26 474 Contra Costa Between Pinole and San Pablo, along US Hwy 40 [80], above Garrity Creek 30 Comment
  SEINET9296212  Navarretia squarrosa Unknown 1950-9-22 621 Contra Costa Contra Costa County Comment
  JEPS103662  Navarretia viscidula David Gowen 2003-7-9 Contra Costa Lime Ridge Open Space, grassy areas at N end 188 Comment
  UC124923  Navarretia viscidula Katharine Brandegee 1907-6-16 Contra Costa near Antioch; Judsonville Comment
  JEPS104757  Nemophila John L. Morrison 1937-4-11 2098 Contra Costa Bald Peak, E slope 571 Comment
  JEPS100041  Nemophila heterophylla G. Smick 2003-2-27 GAS 54 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS111832  Nemophila heterophylla A. G. Murdock 2004-3-5 210 Contra Costa Sky Ranch Along fire road bank 160 Comment
  JEPS111834  Nemophila heterophylla A. G. Murdock 2004-4-30 258 Contra Costa Vaca Canyon 165 Comment
  JEPS3141  Nemophila heterophylla Mary L. Bowerman 1930-6-10 308 Contra Costa Meridian Peak Summit , Meridian Peak summit (Mount Diablo) Comment
  UC146146  Nemophila heterophylla Joseph P. Tracy 1903-4-18 1797 Contra Costa e slope of Bald Peak San Francisco Bay Region, , Bald Peak (Berkeley Hills) 304 Comment
  UC24165  Nemophila heterophylla J. Burtt Davy 1895-4-7 916 Contra Costa Antioch (dry hillsides) Antioch Comment
  UC24180  Nemophila heterophylla Jos. Burtt Davy 1901-4-21 6922 Contra Costa Wildcat Canyon Comment
  UC691707  Nemophila heterophylla Mary L. Bowerman 1931-5-7 806 Contra Costa n of crest Mount Diablo (North Peak Ridge, Mount Diablo); , North Peak Ridge Comment
  OBI48658  Nemophila heterophylla Lewis S. Rose 1940-4-11 40179 Contra Costa March Crk, 6 mi E of Clayton Comment
  UC67123  Nemophila heterophylla Harley P. Chandler 1900-3-23 567 Contra Costa Fish Ranch Road Region of San Francisco Bay, Berkeley Hills (Berkeley Hills) Comment
  JEPS127095  Nemophila menziesii var. menziesii Lowell Ahart, Josephine Guardino 2016-4-19 20797 Contra Costa 2.3 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Spring USGS 7.5' Quad. Comment
  UC691711  Nemophila pedunculata Mary L. Bowerman 1933-4-9 1831 Contra Costa Donner Canyon Mount Diablo, , w fork (w fork, Mount Diablo) 243 Comment
  UC691632  Nuttallanthus texanus Mary L. Bowerman 1938-6-2 3653 Contra Costa Mount Diablo, Dan Cook Canyon, 100 yards n of camp (C.C.C.) Dan Cook Canyon; Mount Diablo, Dan Cook Canyon Comment
  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
  UC1128078  Oemleria cerasiformis N. French 1933-3-13 36 Contra Costa San Pablo Creek San Francisco Quad. (above Sheldon School) 91 Comment
  UCSB2828  Oemleria cerasiformis Robbins, G. 1940-3-10 Contra Costa North slope of Grizzly Peak, Berkeley Hills 426 Comment
  UC169387  Oenothera deltoides subsp. cognata K. Brandegee 1892-5 Contra Costa Antioch Comment
Read comments
Sep 29 2008
  CDA38166  Oenothera deltoides subsp. cognata Harry Spanglet 2008-7-1 s.n. Contra Costa West side of Emerson Ranch (Emerson Tract?), nr. Oakley, part of DWR s Dutch Slough Restoration Project. 0 Comment
  RSA144914  Oenothera deltoides subsp. howellii Peter Rubtzoff 1954-9-14 1756 Contra Costa Sand dunes along lower San Joaquin River, east of Antioch. Comment
  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
  RSA0056393  Oenothera hirtella Jim Shevock 1971-4-7 915 Contra Costa Mount Diablo State Park. 548 Comment
  SEINET3840787  Olea europaea Unknown 2006-6-23 6 .322 Contra Costa West Valona, West of Zampa Bridge above San Pablo avenue, along small stream draining north into the Western end of the Carquinez Strait 91 Comment
  UC2028046  Olea europaea Barbara Ertter 1998-3-1 15921 Contra Costa Shell Ridge Open Space on northwest base of Mount Diablo, Sulfur Creek upstream from Good's Spring. Comment
  UC691743  Orobanche fasciculata Mary L. Bowerman 1933-6-7 2255 Contra Costa Mount Diablo. North Peak Ridge, south face. Comment
  UC1586123  Orobanche fasciculata Barbara Ertter with Elizabeth Neese 1988-4-24 7451 Contra Costa Black Diamond Mines Regional Preserve SW of Antioch, above powerline road E of Nortonville Road. Comment
  JEPS102913  Orobanche pinorum Christopher Thayer 1995-6-27 Contra Costa Mount Diablo State Park, below Prospectors Gap along trail to Murchio Gap Comment
  POM15646  Orthocarpus attenuatus H. P. Chandler 1901-3-21 843 Contra Costa Concord. Comment
  RSA29779  Orthocarpus erianthus Joseph A. Ewan 1934-4-8 8762 Contra Costa Head of Hog Canyon, S slope Mt Diablo. 640 Comment
  RSA407982  Orthocarpus purpurascens M. B. Dunkle 1935-4-14 4450 Contra Costa Sycamore Valley. Intermountain. 335 Comment
  UC692362  Osmorhiza brachypoda Mary L. Bowerman 1933-5-17 2108 Contra Costa branch of Curry due s Olafson's barn (near stream bottom); Mount Diablo 289 Comment
  HSC16707  Oxalis oregana D. A. Shally 1965-4-18 37 Contra Costa Canyon 1 mi. N of Canyon Store Comment
  UC1070121  Packera breweri C. M. Belshaw 1936-5-15 2129 Contra Costa Stewartsville Mt. Diablo Quad. 228 Comment
  UCD32992  Panicum dichotomiflorum Beecher Crampton 1965-9-29 7525 Contra Costa 5 miles S of Brentwood, Vasco Road and Camino Vaqueros. Comment
  SD241914  Papaver californicum Mary Bowerman 1978-5-14 Contra Costa Mount Diablo. Old wagon trail to mines on E face of Eagle Peak. Comment
  CHSC84547  Parapholis incurva John Dittes 2003-5-6 2003 -15 Contra Costa San Joaquin Valley; approximately 10.0 air-miles north of Livermore, 0.4 air-miles north of Vasco Road; Los Vaqueros Reservoir Watershed. 65 Comment
  SEINET4344382 Image available Parapholis incurva Barbara Ertter, Brad Olson 1994-5-7 12764 Contra Costa S. end Pt. Molate Beach Park W. of Richmond N. of San Rafael Bridge, edge of San Fransisco Bay Comment
  UC1111579  Parietaria hespera var. californica Herbert L. Mason 1929-5-5 5260 Contra Costa Nortonville Comment
  JEPS79630  Parvisedum pentandrum Edward Lee 1979-5-6 Contra Costa Mount Diablo, Lower Mitchell Canyon Lower Mitchell Canyon; Mount Diablo, Lower Mitchell Canyon Comment
  RSA0026146  Paspalum dilatatum Barbara Ertter 1998-6-20 16241 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Bob Pond at Old Borges Ranch. Comment
  UC2028558  Paspalum distichum Barbara Ertter with Chris Thayer 1996-10-25 15366 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothill Regional Park. Comment
  CDA5088  Passiflora tarminiana Barbara Ertter 1999-9-17 16846 Contra Costa South edge of El Cerrito at northeast base of Albany Hill, edge of paved lot at southwest corner of junction San Pablo Avenue and Carlson Avenue, near Cerrito Creek. 0 Comment
  JEPS68227  Pectocarya pusilla Mary L. Bowerman 1933-5-8 2019 Contra Costa near crest (n side, by rd to camp ground); Rock City Ridge Comment
  POM286383  Pedicularis densiflora Lyman Benson 1931-3-18 2662 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 Comment
  UCSB12518  Pedicularis densiflora Grah, Nancy 1962-4-14 Contra Costa 1.1 miles on Tappan Lane north of Tarry Lane, Orinda 243 Comment
  RSA123949  Pedicularis densiflora E. F. Sprague 1957-5-30 1134 Contra Costa Rocky Point, Mount Diablo. 610 Comment
  UC16282  Pediomelum californicum F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  SEINET3451383  Pellaea andromedifolia Dean G. Kelch, Andrew G. Murdock 2003-2-21 AGM 68 Contra Costa Martinez, Martinez, Mount Wanda 120 Comment
  UC1874923  Pellaea andromedifolia Ruth Kirkpatrick 2003-3-1 1141 Contra Costa Mount Diablo 396 Comment
  UC692120  Pellaea mucronata var. mucronata Mary L. Bowerman 1933-3-25 1774 Contra Costa ridge n of Emmons Canyon; Mt Diablo 335 Comment
  JEPS17394  Penstemon centranthifolius Rimo Bacigalupi with G. T. Robbins 1955-5-4 4984 Contra Costa about 1 1/4 mi e Antioch (near the San Joaquin River); near San Joaquin River, e of Antioch 9 Comment
  JEPS4477  Penstemon centranthifolius G. Thomas Robbins 1940-5-19 324 Contra Costa e Antioch; bordering San Joaquin River e of Antioch Comment
  RSA0027922  Penstemon heterophyllus subsp. purdyi Barbara J. Ertter 1998-4-4 15972 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, Quarry Hill. Comment
  JEPS7569  Penstemon heterophyllus var. heterophyllus W. L. Jepson 1921-6-16 9315 Contra Costa Mt. Diablo Comment
  NY601704  Penstemon heterophyllus var. heterophyllus W. L. Jepson 1921-6-16 9315 Contra Costa Mount Diablo Comment
  UC691801  Pentachaeta alsinoides Mary L. Bowerman 1931-4-11 687 Contra Costa Pine Canyon Mount Diablo 121 Comment
  POM55516  Pentachaeta exilis C. F. Baker 1903-4-28 2826 Contra Costa Marsh Creek, Mt. Diablo. 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
  SEINET12315987  Pentagramma triangularis M. T. Doutt 1930-1 98 Contra Costa Marsh Creek Comment
  UC1948934  Pentagramma triangularis subsp. triangularis William J. Ferlatte, L. Maynard Moe 1970-4-27 1240 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC691889  Perideridia californica Mary L. Bowerman 1933-4-26 1930 Contra Costa Perkins Canyon Mount Diablo (between main e ridge of North Peak and ridge to its south, by edge of stream) 518 Comment
  UC1390000  Perideridia oregana T. I. Chuang, L. Constance, R. S. Mitchell, and S. Banwar 1965-7-23 6009 Contra Costa just below Live Oak Picnic Area; Mount Diablo 487 Comment
  CAS-BOT-BC413495  Persicaria amphibia Mary L. Bowerman 1935-7-22 3185 Contra Costa Mount Diablo. Hidden Pond 518 Comment
  CAS-BOT-BC413496  Persicaria amphibia Mary L. Bowerman 1935-7-22 3185 Contra Costa Mount Diablo. Hidden Pond 518 Comment
  UC1949094  Persicaria punctata Barbara Ertter with Jim Dunne, David Gowen, Lech Naumovich 2009-12-3 19805 Contra Costa at upper (south) end of San Pablo Dam Reservoir northwest of Orinda Comment
  CHSC39484  Phacelia Tyler Williams 1984-4-18 20 Contra Costa Mt. Diablo. Upper site at Rocky Point Picnic Area on Summit Rd. in Mt. Diablo State Park. 670 Comment
  SJSU11250  Phacelia breweri D. C. Bettencourt 1959-4-18 Contra Costa by South Rd to summit of Mt Diablo 609 Comment
  UC198967  Phacelia breweri H. M. Hall and F. M. Essig 1916-5-31 10140 Contra Costa slopes s summit (type locality); Mount Diablo 1130 Comment
  UC691709  Phacelia breweri Mary L. Bowerman 1933-4-26 1928 Contra Costa s side of peak ridge ese North Peak; Mount Diablo 609 Comment
  UCD13292  Phacelia breweri Collector Unknown 1974-4-13 s.n. Contra Costa Contra Costa CO. Marsh Creek Road, north peak of Mount diablo, near Trail Ride Association. Elevation 2500 - 3000 feet. 914 Comment
  JEPS2229  Phacelia californica R. F. Hoover 1938-2-21 2753 Contra Costa Point Richmond Comment
  UC762065  Phacelia californica R. F. Hoover 1938-2-21 2753 Contra Costa Point Richmond Comment
  POM298633  Phacelia californica Lincoln Constance 1940-3-16 2524 Contra Costa Margin of San Francisco Bay, Point Richmond. 15 Comment
  CHSC23115  Phacelia ciliata Robert A. Schlising; Botany 299 class 1962-3-24 2105 Contra Costa In disturbed orchard, along Marsh Creek Road, about 4 miles 2 of Byron. Comment
  UC2022567  Phacelia ciliata Lewis S. Rose 1932-3-15 3281 Contra Costa Byron Comment
  POM65595  Phacelia ciliata C. F. Baker 1903-4-26 2904 Contra Costa Byron Comment
  UC1950229  Phacelia ciliata Barbara Ertter 1992-3-8 10910 Contra Costa NE edge of Black Diamond Mines Regional Preserve, NE-heading canyon with steep loose sides ca 1/2 mi W of junction of Stewartville Trail and Fredrickson Lane Comment
  UC767564  Phacelia ciliata var. ciliata R. F. Hoover 1938-3-25 2897 Contra Costa Lone Tree Valley Comment
  UC107400  Phacelia distans T. S. Brandegee May 1889 Contra Costa Byron Springs Comment
  UC672416  Phacelia distans Herbert L. Mason 1928-4-29 4422 Contra Costa Sycamore Canyon Mount Diablo Comment
  POM65421  Phacelia distans C. F. Baker 1903-4-28 2806 Contra Costa Antioch Comment
  JEPS2351  Phacelia divaricata W. L. Jepson 1899-4-19 21019 Contra Costa Las Trampas Ridge Comment
  UC24351  Phacelia divaricata Harley P. Chandler 1901-4-5 968 Contra Costa Mt. Diablo Comment
  JEPS111837  Phacelia imbricata subsp. imbricata A. G. Murdock 2004-5-28 275 Contra Costa Pinole Peak 405 Comment
  UC691691  Phacelia nemoralis subsp. nemoralis Mary L. Bowerman 1931-5-16 848 Contra Costa Meridian Peak <?> summit Mount Diablo (s side 10 ft from top) Comment
  UC691694  Phacelia nemoralis subsp. nemoralis Mary L. Bowerman 1936-5-6 3410 Contra Costa Mitchell Canyon Mount Diablo (by road) 228 Comment
  CAS-BOT-BC154332  Phacelia phacelioides Alice Eastwood 1915-5-30 4520 Contra Costa Near type locality. Mt. Diablo Comment
  CAS-BOT-BC154333  Phacelia phacelioides John Thomas Howell 1978-5-4 52870 Contra Costa Burned area in chaparral near summit, Mt. Diablo 1066 Comment
  POM300985  Phacelia phacelioides Mary L. Bowerman 1935-5-8 2974 Contra Costa Muir Area. 1006 Comment
  UC691329  Phacelia phacelioides Mary L. Bowerman 1933-4-26 1923 Contra Costa ese peak (s face); Mount Diablo, North Peak ridge 609 Comment
  JEPS68952  Phacelia tanacetifolia Edward Lee 1935-3-10 1281 Contra Costa Kirker Pass, Donovan Rd. (w. watershed of Kirker Creek) Comment
  JEPS87899  Phacelia tanacetifolia Barbara Ertter 1991-5-5 9774 Contra Costa s of Pittsburg (above Nortonville Pass, Black Diamond Mines Regional Preserve, s side of Rose Hill); Black Diamond Mines Regional Preserve, Rose Hill 365 Comment
  UC126023  Phacelia tanacetifolia Katharine Brandegee May 1907 Contra Costa Antioch Comment
  UC107559  Phacelia tanacetifolia Mrs. Brandegee 1890-1 Contra Costa Comment
  RSA129153  Phalaris lemmonii C. M. Belshaw 1936-5-11 2099 Contra Costa 2.5 miles east southeast of Danville 229 Comment
  UC650564  Phalaris lemmonii Ira L. Wiggins 1930-4-17 4583 Contra Costa 1/4 mi s Byron Comment
  UC692377  Phalaris minor Mary L. Bowerman 1932-4-27 1402 Contra Costa canyon w Riggs Canyon, Mount Diablo (Oyster Ridge, s face); Mount Diablo, s face Oyster Ridge 350 Comment
  JEPS127665  Phalaris paradoxa Barbara Ertter with David Gowen and Michael Park 2017-5-2 22809 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  UC768491  Phalaris paradoxa R. F. Hoover 1937-5-14 2123 Contra Costa Byron Hot Springs Comment
  CAS-BOT-BC250684  Phalaris paradoxa R. E. Frenkel 1964-4-18 428 Contra Costa 2.1 miles E. of Danville on Tassajara Road 129 Comment
  JEPS112007  Phlox gracilis D. G. Kelch 2005-3-25 05 .88 Contra Costa Fernandez Ranch Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak. 115 Comment
  UC2028439  Phoenix Barbara Ertter with Chris Thayer 1996-10-25 15357 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park Comment
  UC24023  Pholistoma membranaceum J. Burtt Davy 1895-4-8 989 Contra Costa foothills Antioch Comment
  SEINET6630848  Phoradendron flavescens J. A. Ewan 1933-10-15 8040 Contra Costa South west slope of Mt. Diablo Comment
  CAS-BOT-BC141123  Phoradendron serotinum subsp. macrophyllum Mary L. Bowerman 1931-2-22 520 Contra Costa Mount Diablo. Sycamore Canyon, head of E fork Comment
  JEPS111926  Phoradendron serotinum subsp. macrophyllum Dean G. Kelch and Andrew G. Murdock 2005-5-13 DGK 05 .235 Contra Costa Martinez. South of oil refinery along Railroad tracks in fragment of habitat. Comment
  CAS-BOT-BC260888  Phragmites australis A. D. E. Elmer 1903-7-1 4541 Contra Costa Martinez 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
  JEPS78626  Phragmites australis Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3279 Contra Costa Botany Cove Browns Island; , Botany Cove Comment
  UC692692  Pickeringia montana var. montana Mary L. Bowerman 1931-5-2 793 Contra Costa Eagle Point Ridge Mount Diablo (n end) Comment
  CAS-BOT-BC202277  Pickeringia montana var. montana W. W. Carruth 1891-5-1 s.n. Contra Costa Moraga Valley 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
  POM210012  Pilularia americana Katherine Brandegee 1909-4-24 s.n. Contra Costa Between Antioch and Marsh Creek, Briones Road Comment
  CAS-BOT-BC78295  Pinus attenuata John Thomas Howell 1925-9-19 1443 Contra Costa Moraga Ridge, Oakland Hills Comment
  JEPS47899  Pinus attenuata W. L. Jepson 1909-9-1 Contra Costa Mortaga Ridge Comment
Read comments
Aug 18 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
  UC1061682  Pinus coulteri N. Floy Bracelin 1941-12-29 1835 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC691927  Pinus coulteri Mary L. Bowerman 1931-3-8 565 Contra Costa above Mitchell Rock; Mount Diablo Comment
  UC1051348  Pinus radiata N. Floy Bracelin 1941-12-29 1833 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  SEINET3874454 Image available Pinus radiata James K. Detling 1963-3-21 39 Contra Costa Near Glorietta School, Orinda, California.; 0 91 Comment
  CDA28753  Pinus sabiniana S. M. Blank 2007-4-7 Z 16 /07 Contra Costa Sacramento Valley; Mount Diablo State Park, Summit Road. Comment
  UC691271  Piperia Mary L. Bowerman 1938-6-30 3700 Contra Costa Blue Oak Flat Mount Diablo 822 Comment
  CAS-BOT-BC158327  Piperia unalascensis Alice Eastwood 1915-5-30 4456 Contra Costa Field redacted by CAS, contact the data manager for more information Comment
  CDA34979  Pistacia atlantica Barbara Ertter, Dan Norris 2001-4-8 17603 Contra Costa Lime Ridge Open Space, main pit of west quarry area north of the adjacent golf course. Comment
  SEINET3292812 Image available Plagiobothrys Lewis S. Rose 1933-3-29 33044 Contra Costa Nortonville, Hills 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
  CDA31452  Plagiobothrys bracteatus D. G. Kelch 2006-5-2 6 .211 Contra Costa Carquinez Strait; Fernandez Ranch; W. Christie Rd. Comment
  UC573067  Plagiobothrys bracteatus H. L. Mason 1928-4-15 4343 Contra Costa top Moraga Ridge Comment
  JEPS123328  Plagiobothrys bracteatus David Gowen with Chris Thayer 2010-4-30 1093 Contra Costa North of Briones Reservoir. On Oursan Trail and adjacent slopeca. 2/3 of the way from Hampton Trail junction to the north end of the dam. Comment
  POM226098  Plagiobothrys bracteatus J. T. Howell 1933-5-14 11232 Contra Costa St. Mary s College Comment
  RSA721206  Plagiobothrys bracteatus Barbara Ertter 1995-5-7 14031 Contra Costa Three-Springs Trail on NE side of Mt. Diablo SE of Clayton 305 Comment
  UC1057488  Plagiobothrys canescens William Hirano 1949-3-29 Contra Costa Byron 50 Comment
  UC518020  Plagiobothrys canescens Lewis S. Rose 1933-4-17 33098 Contra Costa Antioch Comment
  SEINET8731527 Image available Plagiobothrys canescens Lewis S. Rose 1933-1 33046 Contra Costa Pittsburg. Comment
  RSA14931  Plagiobothrys fulvus var. campestris Alice Eastwood, John Thomas Howell 1935-4-7 2120 Contra Costa Near Byron on Marsh Creek Road. Comment
  JEPS116917  Plagiobothrys humistratus David Gowen, Chris Thayer 2009-4-6 983 Contra Costa Cowell Ranch west of dam. Comment
  UC766406  Plagiobothrys infectivus R. F. Hoover 1941-4-12 4835 Contra Costa 1 mi n Lone Tree Valley Comment
  JEPS111847  Plagiobothrys nothofulvus D. G. Kelch 2005-3-25 05 .86 Contra Costa Pinole Peak Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak 250 Comment
  SEINET12275872  Plagiobothrys scouleri H. M. Hall 1901-1 s.n. Contra Costa region of San Francisco Bay, Mt. Diablo, western base Comment
  RSA666369  Plagiobothrys stipitatus Barbara Ertter, J. D. Jokerst, D. Magney 1989-4-5 8120 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  UCSB5650  Plagiobothrys stipitatus Robbins, G. 1937-4-25 Contra Costa Along roadside; 2 miles east of Alamo Comment
  JEPS65186  Plagiobothrys stipitatus var. micranthus L. R. Heckard 1971-4-15 2481 Contra Costa s Byron (at intersection of Holey Rd.) Comment
  OBI20604  Plagiobothrys stipitatus var. micranthus Robert F. Hoover 1967-4-28 10510 Contra Costa Byron Hot Springs Comment
  SEINET1906278  Plagiobothrys stipitatus var. micranthus Barbara Ertter, Jim Jokerst and Dave Magney 1989-1 8126 Contra Costa Alkali sink W and adjacent to Clifton Court Forebay, ca 15 air miles SW of Stockton. 0 Comment
  UC1618197  Plagiobothrys stipitatus var. stipitatus Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8120 Contra Costa ca. 15 air mi. s.w. Stockton (w. & adjacent to Clifton Court Forebay); s.e. Contra Costa Co. Comment
  RSA0029671  Plagiobothrys trachycarpus Barbara Ertter, R. K. Brummitt 1998-5-13 16143 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, depression in road from Somersville Road to south leg of Loughler Loop Trail. Comment
  CDA21563  Plantago coronopus D. G. Kelch 2008-9-1 8 .295 Contra Costa Carquinez Strait; 200 m W of Pacheco Slough, E of Martinez. Comment
  UC1745837  Plantago elongata Annetta M. Carter 1935-3-10 752 Contra Costa Kirker Pass, Donovan Rd. to Pittsburg. Comment
  JEPS6441  Plantago erecta W. L. Jepson 1922-5-11 9637 Contra Costa North Berkeley Hills Comment
  RSA181409  Plantago erecta James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  UC691746  Plantago erecta Mary L. Bowerman 1930-6-18 336 Contra Costa upper end Rock City Canyon Mount Diablo, Rock City Canyon Comment
  JEPS111998  Plantago lanceolata A. G. Murdock 2004-5-28 271 Contra Costa Pinole Peak 205 Comment
  UC2028486  Plantago lanceolata Barbara Ertter 1998-5-3 16046 Contra Costa Pine Canyon/Stage Road upstream from Dusty Road junction, southwest flank of Mount Diablo Comment
  CDA37283  Plantago major D. G. Kelch 2011-3-31 11 .076 Contra Costa Carquinez Region; Richmond; Hilltop Lake Park. Comment
  CHSC21614  Plantago major Willis Ball 1975-2-23 434 Contra Costa Contra Loma Regional Park. Small population in area #1 spread out in picnic area ca. 100 yds s of lake. 10 yds n of w end of parking lot. 45 Comment
  JEPS21710  Plantago major John Thomas Howell 1955-8-24 30898 Contra Costa near Diablo Country Club Comment
  UC28020  Plantago maritima var. juncoides W. H. Brewer 1862-4-25 997 Contra Costa Martinez Comment
  SJSU7798  Plantago subnuda G. A. Samuelson 1955-5-22 Contra Costa McAvoy Boat Harbor, McAvoy Comment
  UCD124562  Plantago subnuda Ann F. Johnson 1978-6-30 AN- 57 Contra Costa along edge of San Joaquin River, PG and E.-site, Antioch Dunes. Comment
  JEPS112002  Platanus racemosa D. G. Kelch 2003-8-13 03 .122 Contra Costa Arroyo del Hambre Along Alhambra Creek E of Mt Wanda. w/ AGM 74 Comment
  CAS-BOT-BC91605  Platystemon californicus John Thomas Howell 1933-5-14 11277 Contra Costa Hills east of Saint Mary's College. Comment
  UC101592  Platystemon californicus Katharine Brandegee 1907-5-5 c Contra Costa between Antioch and Marsh Creek; between Antioch and Marsh Creek Comment
  UC101593  Platystemon californicus Katharine Brandegee 1907-5-5 e Contra Costa between Antioch and Marsh Creek; between Antioch and Marsh Creek Comment
  CAS-BOT-BC91599  Platystemon californicus Mary L. Bowerman 1932-3-23 1133 Contra Costa Mount Diablo. Overlooking Donner Canyon. 304 Comment
  CAS-BOT-BC91606  Platystemon californicus Alice Eastwood 1906-5-1 s.n. Contra Costa Berkeley. Comment
  SEINET3160735  Platystemon californicus L. S. Rose 1940-4-11 40189 Contra Costa 2 mi. w. of Byron Comment
  UC101596  Platystemon californicus Katharine Brandegee 1907-5-5 a Contra Costa between Antioch and Marsh Creek (along a sandy road back of the oldest coal mine); between Antioch and Marsh Creek Comment
  JEPS5147  Plectritis ciliosa subsp. ciliosa Mary L. Bowerman 1933-4-9 1835 Contra Costa Mount Diablo, w fork of Donner Canyon Donner Canyon; Mount Diablo, Donner Canyon 243 Comment
  UC691526  Plectritis ciliosa subsp. ciliosa Mary L. Bowerman 1933-4-15 1853 Contra Costa Canyon s of Arroyo del Cerro (Mount Diablo); Mount Diablo Comment
  JEPS6156  Plectritis congesta L. T. Dempster 1954-6-4 Contra Costa N of Orinda Wildcat Canyon Road Comment
  RSA517360  Plectritis congesta subsp. brachystemon L. T. Dempster 1954-5-29 P 14 Contra Costa Canyon Drive, Orinda. Comment
  RSA517359  Plectritis congesta subsp. nitida L. T. Dempster 1954-6-4 P 16 Contra Costa Wildcat Canyon Road, N of Orinda. Comment
  UC28871  Plectritis macrocera Jos. Burtt Davy 1901-4-21 Contra Costa Wildcat Canyon Comment
  UC691522  Plectritis macrocera Mary L. Bowerman 1931-3-29 621 a Contra Costa Mount Diablo, East Cave Point Ridge Mount Diablo; , East Cave Point Ridge Comment
  UC74929  Plectritis macrocera C. F. Baker 1903-4-28 2813 Contra Costa Mount Diablo, Mitchell's Canyon Mount Diablo; Pacific Coast, , Mitchell's Canyon Comment
  POM59719  Plectritis macrocera C. F. Baker 1903-4-28 2813 Contra Costa Mitchell's Canyon, Mt. Diablo. Comment
  JEPS78623  Pluchea odorata var. odorata Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3284 Contra Costa Browns Island, Botany Cove Comment
  JEPS100035  Poa annua S. O'Neil 2003-5-8 SEO 28 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD90342  Poa annua Beecher Crampton 1956-5-14 3374 Contra Costa 5 miles south of city of Antioch, at head of Horse Valley. Comment
  UC1818939  Poa bulbosa Barbara Ertter, Chris Thayer 1995-4-25 13986 Contra Costa Southeast side of Mt. Diablo northeast of Danville; shade of oak forest on Sycamore Creek near junction of path from Knobcone Point Rd. 396 Comment
  POM205468  Poa howellii Jos Burtt Davy 1899-4-19 7853 Contra Costa Las Trampas Creek Comment
  UC691190  Poa howellii Mary L. Bowerman 1935-5-18 3020 Contra Costa nw facing slope across rd from and a little e of Parking area; Mt Diablo 1066 Comment
  UCD91141  Poa howellii G. L. Stebbins Jr. 1936-4-18 1539 Contra Costa head of Curry Canyon, SE side of Mt. Diablo. Comment
  CAS-BOT-BC236384  Poa secunda subsp. secunda Mary L. Bowerman 1933-5-3 1984 Contra Costa Mount Diablo. [Indian Ceremonial] Canyon, a little below and across the stream from the spring 731 Comment
  CAS-BOT-BC236388  Poa secunda subsp. secunda Mary L. Bowerman 1935-4-26 2924 Contra Costa Mount Diablo. Meridian Peak summit 1143 Comment
  UC38696  Poa secunda subsp. secunda J. Burtt Davy 1895-4-8 898 Contra Costa Antioch Comment
  UC692417  Poa secunda subsp. secunda Mary L. Bowerman 1935-4-19 2859 Contra Costa near Turtle Rock (hillside opposite side of rd); Mt Diablo 457 Comment
  SEINET5554719  Poaceae J. Hamai 1985-1 s.n. Contra Costa Russell Reserve. Comment
  SEINET883324  Poaceae F. W. Gould 1941-1 1304 Contra Costa near San Francisco Bay at Albany. Comment
  POM126756  Pogogyne douglasii V. King Chesnut 1887-9-10 s.n. Contra Costa Mt. Diablo Comment
  OBI60316  Pogogyne serpylloides Joseph Andorfer Ewan 1935-5-26 9305 Contra Costa E slope of Bold Peak , San Pablo Ridge 549 Comment
  POM193972  Pogogyne serpylloides J. T. Howell 1930-4-22 4747 Contra Costa Bald Peak Comment
  SEINET13947028 Image available Pogogyne serpylloides Joseph Andorfer Ewan 1935-1 9305 Contra Costa E slope of Bald Peak, San Pablo Ridge; 1800 ft alt. 549 Comment
  UC1988933  Pogogyne serpylloides John Thomas Howell 1930-4-22 4747 Contra Costa Bald Peak Comment
  UC421583  Pogogyne serpylloides John Thomas Howell 1930-4-22 4747 Contra Costa Bald Peak Comment
  JEPS65184  Pogogyne zizyphoroides L. R. Heckard 1971-4-15 2483 Contra Costa At intersection of Holey Road, South of Byron. Comment
  UC32588  Pogogyne zizyphoroides Chestnut and Drew 1889-4-18 Contra Costa Antioch Comment
  CDA34157  Polycarpon tetraphyllum D. G. Kelch, D. A. Weinstein 2011-6-3 11 .569 Contra Costa Carquinez Strait Region.; Martinez. Comment
  UC692130  Polygonum amphibium Mary L. Bowerman 1935-9-13 3335 Contra Costa Chase Pond Mount Diablo Comment
  JEPS99992  Polygonum arenastrum G. Smick 2003-5-8 GAS 176 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS51308  Polygonum aviculare subsp. aviculare W. L. Jepson 1891-5-24 Contra Costa Mt. Diablo Comment
  UC692128  Polygonum aviculare subsp. aviculare Mary L. Bowerman 1930-10-4 475 Contra Costa Maple Spring Mount Diablo Comment
  UC1784908  Polygonum aviculare subsp. depressum Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15671 Contra Costa Martinez Comment
  CDA15275  Polygonum aviculare subsp. rurivagum G. F. Hrusa, D. Crowe, R. York 1998-7-17 14712 Contra Costa Sacramento Delta; E end of Dow Chemical property at Antioch. 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
  JEPS112031  Polypodium calirhiza A. G. Murdock 2003-2-21 71 Contra Costa Mt. Wanda - Martinez Edge of oak woodland on top of north-facing hill above train tunnel on Mt. Wanda 90 Comment
  UC1541044  Polypodium calirhiza Dick Moe 1985-2-24 Contra Costa Red Rock Isl.; San Francisco Bay 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
  UC691205  Polypogon monspeliensis Mary L. Bowerman 1933-6-21 2338 Contra Costa Donner Canyon Mount Diablo; , Donner Canyon 335 Comment
  UCD37370  Polypogon monspeliensis Beecher Crampton 1959-9-3 5453 Contra Costa Contra Costa County, 2 miles north of city of Orinda, Bear Creek, East Bay Municipal Utilities District Project. Comment
  UCD91255  Polypogon monspeliensis Brandegee 1916-5-9 s.n. Contra Costa Byron Springs. Comment
  SEINET10593596  Polypogon monspeliensis Alan A. Beetle 1941-6-24 Beetle 1750 Contra Costa Point Richmond on SanFrancisco Bay, common in wet sandy places Comment
  UC2028565  Polypogon viridis Barbara Ertter 1997-1-5 15440 Contra Costa Lime Ridge Open Space on northwest side of Mount Diablo, section on north side of Ygnacio Valley Road. Comment
  JEPS102910  Polystichum Barbara Ertter with Susan D'Alcamo 1998-6-12 16194 Contra Costa E end of Bald Ridge Tail W of Prospectors Gap Mount Diablo Comment
  JEPS100004  Populus fremontii A. Langston 2003-9-16 AL 91 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS112254  Populus fremontii subsp. fremontii D. G. Kelch 2005-5-13 05 .236 Contra Costa Martinez South of oil refinery along Railroad tracks Comment
  RSA755535  Potamogeton diversifolius Barbara Ertter, Brad Olson 1991-9-28 10839 Contra Costa San Pablo Reservoir between Orinda and El Sobrante 91 Comment
  CHSC106696  Potamogeton filiformis Barbara Ertter; Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10715 Contra Costa Browns Island N of Pittsburg near confluence of Sacramento and San Joaquin rivers opposite Pittsburg Marina. Tangled masses in water at W end of island. Comment
  CDA43052  Potamogeton richardsonii D. Kratville & F. Maly 2014-7-9 s.n. Contra Costa Clifton Court Forebay. 0 Comment
  CDA23062  Potentilla glandulosa D. G. Kelch, D. A. Weinstein 2008-4-25 8 .078 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
  JEPS84884  Proboscidea lutea G. Thomas Robbins 1959-8-1 4114 Contra Costa roadside berm of frontage road just s Mt. Diablo Blvd. ((about 0.5 mi e of concrete bridge at Charles Hill and about 0.2 mi w of jct. of Hidden Valley Rd.), 2 mi w of Lafayette) 144 Comment
  SEINET3840785  Proboscidea lutea Unknown 2006-8-6 6 .359 Contra Costa Alhambra Valley road, between Castro Ranch road and Bear Creek road, along the edge of a plowed field 80 Comment
  UC1784904  Prunus avium Barbara Ertter with Dan Norris 1999-10-23 s. n. Contra Costa Huckleberry Botanic Regional Preserve, Oakland Hills, along lower loop trail Comment
  JEPS111535  Prunus cerasifera D. G. Kelch 2005-5-6 05 .219 Contra Costa Franklin Canyon East of Christie Road. South of Route 4.. 127 Comment
  CDA39058  Prunus ilicifolia D. G. Kelch 2011-6-12 11 .586-B Contra Costa Along railroad tracks north of Point Costa. 0 Comment
  JEPS111533  Pseudognaphalium stramineum D. G. Kelch 2005-5-5 05 .217 Contra Costa Point Pinole - Giant Marsh Giant Salt Marsh 3 Comment
  CAS-BOT-BC361831  Psilocarphus oregonus J. H. Thomas 1953-4-25 3000 Contra Costa 2 miles SW of Brentwood Comment
  CDA29229  Psilocarphus tenellus D. G. Kelch 2005-5-13 05 .272-D Contra Costa Carquinez Strait; Above and west of Edwards Canyon, nr Crockett. Comment
  CHSC116615  Psilocarphus tenellus Lowell Ahart; Josephine Guardino 2016-4-19 20795 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
  JEPS111756  Psilocarphus tenellus D. G. Kelch 2005-5-1 05 .204 Contra Costa Crockett - Edwards Canyon 100 Comment
  RSA31229  Psilocarphus tenellus var. tenellus Joseph A. Ewan 1936-5-3 9497 Contra Costa Wildcat Creek near Orinda road bridge. Comment
  UC2028079  Psilocarphus tenellus var. tenellus Barbara Ertter, Tony Morosco 1998-4-12 15991 Contra Costa Base of Mount Olympia on north side of Mount Diablo, open flat below quarry NE of Olympia Trail. Comment
  POM138622  Ptelea angustifolia Katherine Brandegee 1907-6-16 s.n. Contra Costa Antioch Comment
  RSA138624  Ptelea angustifolia Katherine Brandegee 1907-6-16 137 Contra Costa Antioch Comment
  RSA126045  Ptelea baldwinii subsp. crenulata A. D. E. Elmer 1903-05 4327 Contra Costa Mount Diablo. Comment
  CAS-BOT-BC148639  Ptelea crenulata W. L. Jepson 1918-6-5 7603 a Contra Costa Mt. Diablo, Donner Canyon Comment
  JEPS40167  Ptelea crenulata H. L. Mason 1928-3-31 Contra Costa Mt. Diablo Comment
  UC137407  Ptelea crenulata C. F. Baker 1903-4-28 2943 Contra Costa Mitchell's Canyon; Mt. Diablo Comment
  UC17380  Ptelea crenulata W. H. Brewer 1862-5-7 1052 Contra Costa n slope Mount Diablo 30 Comment
  CAS-BOT-BC148617  Ptelea crenulata Peter H. Raven; H. L. Mason; R. Ornduff 1957-4-11 10624 Contra Costa Curry Canyon, 4.0 miles s. of Recreation Ground Comment
  CAS-BOT-BC148645  Ptelea crenulata V. Rattan; Dr. Mary Curran 1883-6-1 s.n. Contra Costa Unspecified Comment
  CAS-BOT-BC148646  Ptelea crenulata Volney Rattan; Dr. Mary Curran 188 s.n. Contra Costa Unspecified 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
  UCD117073  Ptelea crenulata R. W. Lundh 1932-8-17 134 Contra Costa Marsh Creek. 381 Comment
  UCD38732  Ptelea crenulata Beecher Crampton 1957-7-9 4273 Contra Costa 2-3 miles northwest Martinez on the road to Crockett. Comment
  UCSB4881  Ptelea crenulata Keator, Glenn 1959-7-1 Contra Costa Laurel camp on Mt. Diablo Comment
  CAS-BOT-BC76619  Pteridium aquilinum Mary L. Bowerman 1930-8-24 426 Contra Costa Mount Diablo - Mitchell Canyon, lower trail (west of stream) 259 Comment
  POM181425  Pteridium aquilinum var. pubescens I. L. Wiggins 1930-4-18 4590 Contra Costa Jersey Island. Comment
  UC1948933  Pteridium aquilinum var. pubescens William J. Ferlatte, L. Maynard Moe 1970-4-27 1246 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC692115  Pteridium aquilinum var. pubescens Mary L. Bowerman 1930-8-24 426 Contra Costa lower trail w of stream Mitchell Canyon; Mt. Diablo 259 Comment
  UC2027759  Pyracantha angustifolia Barbara Ertter 1997-1-5 15433 Contra Costa Ygnacio Valley Road crossing Lime Ridge on northwest side of Mount Diablo. Comment
  UCSC009992  Quercus Al Keuter 2014-5-23 00 097 B Contra Costa Along Reliez Valley Road, Lafayette 72 Comment
  UC691327  Quercus X chasei Mary L. Bowerman 1935-10-26 3349 Contra Costa 0.1 mi (by road) above Silver Springs (50 ft from road); Mount Diablo 859 Comment
  UC2028193  Quercus X chasei Barbara Ertter 1997-11-1 15879 Contra Costa South side Mount Diablo, near Balancing Rock on Knobcone Point Road. Comment
  CAS-BOT-BC104162  Quercus X morehus H. E. McMinn 367 Contra Costa 2 1/4 miles E of Edwood Peak on extension of the ridge Comment
  CAS-BOT-BC104163  Quercus X morehus C. Davies 1919-1 s.n. Contra Costa near Post Office Mills College Comment
  CAS-BOT-BC45657  Quercus agrifolia John Thomas Howell 1926-12-27 2274 Contra Costa Near Oakley Comment
  JEPS75530  Quercus agrifolia P. F. Yorks 1975-4-10 381 Contra Costa on Hampton Rd ca 1.7 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  UCSB16859  Quercus agrifolia L. Dempster Mar 1963 S.N. Contra Costa NEAR 15 EL TOYANAL ORINDA Comment
  CAS-BOT-BC62697  Quercus chrysolepis Mary L. Bowerman 1931-4-25 778 Contra Costa Mt. Diablo summit Comment
  JEPS77011  Quercus chrysolepis Robert M. Lloyd 1963-3-17 2138 Contra Costa on Skyline across from 7090 Skyline Drive (0.5 mi e of intersection of Grizzly Peak Road and Skyline Drive); Skyline Drive, Huckleberry Trail Comment
  UC691274  Quercus chrysolepis Mary L. Bowerman 1930-8-31 446 Contra Costa Dan Cook Canyon, upper end Mount Diablo Comment
  CAS-BOT-BC86120  Quercus dumosa Mary L. Bowerman 1933-4-15 1878 Contra Costa Mount Diablo. Canyon S of Arroyo del Cerro: Canyon side Comment
  CDA37340  Quercus garryana D. G. Kelch 2010-10-31 10 .445 Contra Costa South Pinole Peak. Comment
  CAS-BOT-BC94293  Quercus garryana Mary L. Bowerman 1935-11-30 3352 Contra Costa Head f small draw 30 feet above road between Gibraltar Rock and Rocky City Road Comment
  UC2042780  Quercus kelloggii Barbara Ertter with Travis Columbus 1990-6-10 9115 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill, SE Alhambra Valley staging area Comment
  UC5819  Quercus kelloggii H. P. Chandler 1900-3-24 Contra Costa Orinda Park Mount Diablo Region Comment
  RSA388017  Quercus palmeri J. M. Tucker 1981-4-25 4453 -K Contra Costa Antonio Souza Ranch, SW of Byron. 309 Comment
  CAS-BOT-BC104715  Quercus wislizeni H. E. McMinn s.n. Contra Costa near summit of Mt. Diablo Comment
  UC5707  Quercus wislizeni W. H. Brewer 1861-9-25 843 Contra Costa Mount 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-BC104709  Quercus wislizeni Mary L. Bowerman 1930-9-9 454 Contra Costa Mount Diablo. North Peak base, east side Comment
  CAS-BOT-BC104716  Quercus wislizeni H. E. McMinn s.n. Contra Costa Curry Canon [Canyon] Mt. Diablo Comment
  JEPS96257  Quercus wislizeni var. frutescens Dean Kelch 1995-3-14 97 .13 Contra Costa Mount Diablo, Rock City, e Contra Costa County Rock City; Mount Diablo, Rock City 457 Comment
  UC311125  Ranunculus aquatilis A. D. E. Elmer May, 1903 4318 Contra Costa Mount Diablo Comment
  UCR263547  Ranunculus aquatilis var. capillaceus Barbara Ertter, Tony Morosco 1998-7-11 16365 Contra Costa San Francisco Bay Region, North base of Mount Diablo, small pond on north side of Bruce Lee Road east of Mitchell Canyon staging area 183 Comment
  UC2028488  Ranunculus aquatilis var. diffusus Barbara Ertter 1998-5-3 16057 Contra Costa Turtle Rock ponds along Barbeque Terrace Road in upper Pine Canyon, southwest flank of Mount Diablo Comment
  JEPS112060  Ranunculus californicus D. G. Kelch 2005-4-15 05 .138 Contra Costa Rodeo Creek 100 ms west of previous site 100 Comment
  POM268432  Ranunculus californicus Lyman Benson 1935-3-16 6271 Contra Costa Mt. Diablo, Watershed: Walnut Creek; Mountain Range: Mt. Diablo. 915 Comment
  UC1126165  Ranunculus californicus R. C. Wilson 1935-3-14 135 Contra Costa Sycamore Creek Mt. Diablo Quadrangle (head) Comment
  UC70183  Ranunculus californicus J. Burtt Davy May 1898 Contra Costa Danville Region of Mount Diablo Comment
  UC1818977  Ranunculus californicus Barbara Ertter, Gary Schoolcraft, Tony Morosco 1996-4-6 14562 Contra Costa Grassy ridge east of Curry Point, Mount Diablo edge of Knobcone Point Road near Sloan Road junction, clay soil. 548 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
  POM268398  Ranunculus canus Lyman Benson 1931-3-18 2655 Contra Costa Mt. Diablo near Danville; Mt. Range: Mt. Diablo; Watershed: Walnut Creek 152 Comment
  UC692185  Ranunculus canus var. canus Mary L. Bowerman 1931-3-8 563 Contra Costa Mitchell Canyon (west bank, near mouth); Mount Diablo Comment
  POM268454  Ranunculus canus var. laetus Lyman Benson 1935-3-16 6281 Contra Costa 3 miles S of Antioch, Mt. Range: Mt. Diablo; Watershed: Sacramento River 152 Comment
  JEPS112061  Ranunculus hebecarpus D. G. Kelch 2005-5-1 05 .183 Contra Costa Crockett - Edwards Canyon 150 Comment
  SEINET3816544 Image available Ranunculus hebecarpus Lewis S. Rose 1934-3-21 34071 Contra Costa Marsh Creek, 6 miles east of Clayton. Comment
  UC634972  Ranunculus hebecarpus H. L. Mason 1929-3-29 5126 Contra Costa two mi above Clayton (Marsh Creek Road) Comment
  JEPS113007  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
  POM269270  Ranunculus muricatus Mary L. Bowerman 1933-4-15 1844 Contra Costa Canyon south of Arroyo del Cerro, about 250 ft. below spring; Comment
  POM300585  Ranunculus muricatus Mary L. Bowerman 1938-5-25 3629 Contra Costa Arroyo Del Cerro by N road Comment
  PASA2644  Ranunculus occidentalis Annetta Carter 1929-3-31 140 Contra Costa Near Clayton Comment
  UC2062687  Ranunculus occidentalis Barbara Ertter with David Gowen 2013-4-19 21317 Contra Costa Southwestern Mount Diablo State Park southeast of Walnut Creek, lower end of Little Yosemite Trail. Comment
  UC1084395  Ranunculus occidentalis G. Thomas Robbins 1937-4-25 140 Contra Costa hillside near La Vista Comment
  UC2028580  Ranunculus occidentalis Barbara Ertter with Dan Norris 2001-4-15 17607 Contra Costa Diablo Foothills Regional Park. At east end of Alamo Trail. Comment
  UC9383  Ranunculus orthorhynchus var. bloomeri J. Burtt Davy 1897-4-17 Contra Costa Point Isabel Comment
  UC2028176  Raphanus raphanistrum Barbara Ertter 1998-5-3 16043 Contra Costa Pine Canyon/Stage Road upstream from Dusty Road junction, southwest flank of Mount Diablo. Comment
  UC2028212  Raphanus raphanistrum Barbara Ertter with Richard K. Brummitt 1998-5-13 16134 Contra Costa North Gate Road on west side of Mount Diablo, hairpin turn opposite Angel Kerley trailhead. Comment
  CAS-BOT-BC74268  Raphanus sativus Walter Knight; W. Roderick; S. Edwards; B. Doyle 1978-9-19 3251 Contra Costa Browns Island. South Landing. 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
  JEPS112065  Rhamnus crocea A. G. Murdock 2004-5-28 290 Contra Costa Pinole Peak 405 Comment
  CAS-BOT-BC59894  Rhamnus ilicifolia A. D. E. Elmer 1903-5-1 4326 Contra Costa Mount Diablo. Comment
  CAS-BOT-BC59899  Rhamnus ilicifolia Rimo Bacigalupi 1922-9-24 s.n. Contra Costa Clayton. Comment
  HSC101957  Rhamnus ilicifolia Nikolaus Gillen, Michelle Bihler 2014-3-20 9 Contra Costa Mount Diablo State Park. Back Creek Trail. 340 Comment
  UC311490  Rhamnus ilicifolia A. D. E. Elmer May 1903 4326 Contra Costa Mount Diablo Comment
  UC692593  Rhamnus tomentella subsp. tomentella Mary L. Bowerman 1932-11-19 1658 Contra Costa Lower Grapevine Spring, at head of spring Mount Diablo Comment
  UC692576  Rhus trilobata Mary L. Bowerman 1935-5-30 3092 Contra Costa Eagle Point Ridge; Mount Diablo 350 Comment
  UC466053  Ribes Tracy J. Storer 1912-7-13 Contra Costa Mt. Diablo 914 Comment
  UC1925895  Ribes Donald G. Nelson 1937-4-29 559 Contra Costa lefthand side of Tunnel Road at entrance to Canyon. Oakland. Comment
  POM274738  Ribes californicum Unspecified 1935-3-16 6268 Contra Costa Mt. Diablo, Walnut Creek watershed, Upper Sonora zone. Comment
  UC1127406  Ribes californicum R. W. Lundh 1932-8-25 143 Contra Costa Mt. Diablo Mt. Diablo Quadrangle Comment
  UC570402  Ribes californicum Chas. M. Belshaw 1936-2-16 1592 Contra Costa 1 3/4 mi nnw Orinda; Sobrante and Briones Hills, Bear Creek 99 Comment
  CAS-BOT-BC92923  Ribes californicum var. californicum Carl Meyer 1928-2-22 285 Contra Costa Mount Diablo. Comment
  CHSC20642  Ribes divaricatum Carol C. Getzinger 1964-4-26 51 Contra Costa Wildcat Canyon Road 1.3 miles from junction with Spruce Street and Grizzly Peak Boulevard. 152 Comment
  CAS-BOT-BC168921  Ribes malvaceum L. R. Abrams 1921-5-25 8060 Contra Costa Near summit Mt. Diablo Comment
  JEPS49349 Image available Ribes malvaceum W. L. Jepson 1923-2-18 9844 Contra Costa Las Trampas Ridge Comment
  UC921820  Ribes malvaceum Lewis S. Rose 1941-3-22 41053 Contra Costa near summit Mt. Diablo 1188 Comment
  RSA0021634  Ribes malvaceum L. S. Rose 1934-2-1 34011 Contra Costa W. slope Mt. Diablo. 610 Comment
  CAS-BOT-BC206020  Ribes menziesii Alice Eastwood 1914-3-6 s.n. Contra Costa Redwood Canyon Comment
  JEPS22439  Ribes menziesii Mary L. Bowerman 1930-6-10 314 Contra Costa summit Mt. Diablo Comment
  SEINET14419467 Image available Ribes menziesii J. Arrigo 1975-3-6 10 Contra Costa Along Marsh Creek Road near Mt. Diablo area. 183 Comment
  UC1127450  Ribes menziesii R. W. Lundh 1932-9-22 166 Contra Costa Mount Diablo Mt. Diablo Quadrangle Comment
  CAS-BOT-BC209362  Ribes sanguineum var. glutinosum John Thomas Howell 1925-9-12 1438 Contra Costa San Leandro Canyon, Oakland Hills Comment
  CAS-BOT-BC209363  Ribes sanguineum var. glutinosum H. E. McMinn 1925-1-1 22 Contra Costa Head of San Leandro Creek Comment
  UC570964  Ribes sanguineum var. glutinosum Herbert L. Mason 1925-9-12 2224 Contra Costa head San Leandro Canyon; Oakland Hills Comment
  CAS-BOT-BC362962  Rigiopappus leptocladus Mary L. Bowerman 1931-4-4 669 Contra Costa Mount Diablo. West of Turtle Rock Comment
  UC697151  Rigiopappus leptocladus Mary L. Bowerman 1931-4-4 669 Contra Costa w Turtle Rock; Mount Diablo Comment
  RSA72859  Rigiopappus leptocladus A. Kellogg, W. G. W. Harford 1869-6-6 524 Contra Costa Summerville, Mt. Diablo. Comment
  CDA25732  Romulea rosea D. G. Kelch, D. A. Weinstein 2008-3-3 8 .025 Contra Costa East Bay.; Richmond. Wildcat Canyon Park. Alvarado Unit (W end). Comment
  JEPS127093  Rorippa palustris var. occidentalis Lowell Ahart, Josephine Guardino 2016-4-19 20771 Contra Costa 1.4 miles (air) northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Spring USGS 7.5' Quad. Comment
  CAS-BOT-BC147407  Rosa californica Peter H. Raven 1957-7-5 11053 Contra Costa Point Isabel Comment
  CAS-BOT-BC147412  Rosa californica C. Keefer 1922-9-25 s.n. Contra Costa [Morago] Moraga Ridge Comment
  JEPS112081  Rosa californica D. G. Kelch 2003-8-13 03 .123 Contra Costa Vaca Canyon 165 Comment
  UC1584666  Rosa californica Jerry Powell 1990-8-29 1593 Contra Costa on riverine floodplain Antioch National Wildlife Reguge Comment
  UC1952819  Rosa californica Barbara Ertter with David Gowen 2010-11-17 20700 Contra Costa southeast part of Lime Ridge Open Space (City of Walnut Creek(, mid slope of east-facing drainage below Crystyl Ranch Trail ca 1/4 mi N of jct Paraiso Trail Comment
  UC555648  Rosa californica Herbert L. Mason 1924-11-23 1167 Contra Costa Cashion Canyon Las Trampas Ridge Comment
  UC691161  Rosa californica Mary L. Bowerman 1936-9-10 3545 Contra Costa dry streambed Mount Diablo, Donner Canyon 213 Comment
  SJSU10413  Rubus armeniacus H. C. Reeves 1972-5-28 Contra Costa 2 mi S of Wildcat Canyon, 0.75 mi W of San Pablo Cr, Orinda Comment
  UC691164  Rubus discolor Mary L. Bowerman 1942-10-4 3853 Contra Costa Russelman Park road Mount Diablo Comment
  CAS-BOT-BC147152  Rubus laciniatus Walter Knight; Bill Burley 1979-8-18 3445 Contra Costa Browns Island, Point Emmett Comment
  CAS-BOT-BC147206  Rubus parviflorus Mary L. Bowerman 1933-5-19 2140 Contra Costa Below Morgan Sulphur Spring 335 Comment
  CAS-BOT-BC147205  Rubus parviflorus Mary L. Bowerman 1933-11-4 2464 Contra Costa Alder Creek Springs 487 Comment
  CAS-BOT-BC158773  Rubus ursinus Walter Knight; Joanne Dean 1978-8-14 3167 Contra Costa Browns Island Comment
  CAS-BOT-BC158772  Rubus ursinus Elsie Zeile 1910-4-2 s.n. Contra Costa Fish Ranch r. Comment
  SEINET11918854  Rubus vitifolius M. T. Doutt 1930-9-9 93 Contra Costa Marsh Creek Comment
  UC692166  Rumex crispus Mary L. Bowerman 1935-6-28 3177 Contra Costa s of Meridian Peak summit (300 yds e of the meridian fence, at very edge of the pond area); Mount Diablo 487 Comment
  CAS-BOT-BC433479  Rumex fueginus Walter Knight; Irja Knight 1980-8-26 3804 Contra Costa At Hercules Comment
  JEPS112030  Rumex obtusifolius Dean G. Kelch and Andrew G. Murdock 2005-4-24 DGK 05 .177 Contra Costa Franklin Canyon, Contra Costa County, CA. Collier Hill. West Carbon. Comment
  UC1328158  Rumex pulcher Olive Dyer 1936-10-18 100 Contra Costa about 0.5 mi below junction Wildcat Creek and Wildcat-Orinda road; Wildcat Canyon Comment
  UC692157  Rumex pulcher Mary L. Bowerman 1938-5-28 3644 Contra Costa Maple Spring, upper margin Mount Diablo Comment
  JEPS100112  Rupertia physodes A. Langston 2003-6-12 AL 41 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS75463  Rupertia physodes P. F. Yorks 1975-5-31 421 Contra Costa ca 1.7 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Reserve Comment
  UC692276  Rupertia physodes Mary L. Bowerman 1930-6-3 236 Contra Costa west road 1.9 mi from entrance (open slope, s exposure); Mount Diablo Comment
  JEPS111530  Ruppia maritima D. G. Kelch 2005-5-5 05 .214 Contra Costa Point Pinole - Giant Marsh Giant Salt Marsh 3 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
  CAS-BOT-BC445700  Sagittaria latifolia Vincent Jones 1920-8-29 s.n. Contra Costa Orwood Comment
  UC691958  Salix exigua var. hindsiana Mary L. Bowerman 1935-5-30 3080 Contra Costa by Donner Canyon stream Donner Canyon; Mt. Diablo, Donner Canyon 152 Comment
  CDA15248  Salix laevigata G. F. Hrusa, D. Crowe 1998-5-8 14379 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Comment
  CDA23063  Salix lasiolepis D. G. Kelch, D. A. Weinstein 2008-4-25 8 .087 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
  UC1196652  Salix lasiolepis Joseph P. Tracy 1932-9-10 10786 Contra Costa Franklin Canyon Northern Coast Ranges (head) 152 Comment
  UC692065  Salix lasiolepis Mary L. Bowerman 1935-6-21 3142 Contra Costa Arroyo del Cerro Mount Diablo (e fork) 259 Comment
  CAS-BOT-BC107366  Salix lasiolepis var. lasiolepis Walter Knight; Joanne Dean 1978-8-14 3117 Contra Costa Browns Island Comment
  CAS-BOT-BC129557  Salix lasiolepis var. lasiolepis Mary L. Bowerman 1932-2-13 1088 Contra Costa By Alamo Creek (West Branch) - Mount Diablo 289 Comment
  SEINET12765134  Salsola soda Barbara Ertter 1990-9-30 9659 Contra Costa Northwest side of county, Point Pinole Regional Shoreline on San Pablo Bay, north Richmond; edge of salicornia marsh on N edge of park.; 0 Comment
  JEPS59865  Salsola tragus W. L. Jepson 1923-10-4 10212 a Contra Costa orchards near Antioch Comment
  JEPS79009  Salsola tragus Edward Lee with Annetta Carter 1935-8-17 1618 Contra Costa just e. Antioch Comment
  UC1949074  Salsola tragus Barbara Ertter with CNPS 1990-9-16 9644 Contra Costa Bethel Island NE of Brentwood, E end of Gateway Road at W edge of Franks Tract State Recreation Area Comment
  UC32581  Salvia carduacea Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  UC634924  Salvia columbariae H. L. Mason 1929-3-29 5121 Contra Costa Mt. Diablo 762 Comment
  POM223332  Salvia columbariae L. S. Rose 1935-5-16 s.n. Contra Costa Mt. Diablo. Comment
  CDA31186  Salvia mellifera D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .223 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  UC634921  Salvia mellifera H. L. Mason 1925-3-10 1291 Contra Costa Mount Diablo Comment
  UCD36923  Salvia mellifera Beecher Crampton 1956-5-14 3406 Contra Costa Southern boundary of Mount Diablo State Park. Comment
  RSA434141  Salvia mellifera August Hartman 1960-4-19 s.n. Contra Costa South Gate Road, Mt. Diablo 305 Comment
  SEINET5734904 Image available Salvia mellifera August Hartman 1960-1 1 Contra Costa South Gate Road, Mt. Diablo.; Mt. Diablo 305 Comment
  UC2027930  Salvia spathacea Barbara Ertter with Dorothy Frantz 2001-5-10 17641 Contra Costa Diablo Foothills Regional Park, Pine Canyon a few hundred yards above check dam. 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
  UC691560  Sambucus mexicana Mary L. Bowerman 1930-8-31 452 a Contra Costa Curry Canyon Mount Diablo (Sloan Road) Comment
  UCD164883  Sambucus nigra subsp. caerulea Henry House 1995-5-20 1995- 12 Contra Costa Adjacent to Walnut Blvd., approximately 1.25 km south of Marsh Creek Road. 30 Comment
  UC691875  Sanicula bipinnatifida Mary L. Bowerman 1931-3-21 595 Contra Costa Mount Diablo, Sycamore Canyon Sycamore Canyon; Mount Diablo, Sycamore Canyon 350 Comment
  CDA23108  Sanicula crassicaulis D. G. Kelch, D. A. Weinstein 2008-4-25 8 .082 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
  UC735124  Sanicula saxatilis Lincoln Constance, T. Morley, R. H. Shan, W. H. Wagner 1946-4-26 3036 Contra Costa Mount Diablo, Summit sw of lookout Mount Diablo 1158 Comment
  RSA471491  Sanicula tuberosa Brandegee 1884-05 s.n. Contra Costa Antioch Comment
  UC766927  Sanicula tuberosa R. F. Hoover 1935-3-10 301 Contra Costa Nortonville Comment
  UC1949240  Sanicula tuberosa Barbara Ertter with Michelle Seidl 1992-3-14 10914 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo; along Blue Oak Trail Comment
  JEPS43797  Saxifraga californica E. W. Hicks 1917-3-24 107 Contra Costa Mount Diablo 304 Comment
  UC692475  Saxifraga californica Mary L. Bowerman 1933-4-9 1837 Contra Costa w fork Donner Canyon; Mount Diablo, Donner Canyon 243 Comment
  OBI70103  Scabiosa atropurpurea A. G. Murdock, D. G. Kelch 2003-9-12 200 Contra Costa Carquinez Strait: Nr Selby, W of Crockett 101 Comment
  CDA37282  Scandix pecten-veneris D. G. Kelch 2011-3-31 11 .075 Contra Costa Carquinez Region; Richmond; Hilltop Lake Park. Comment
  UC1795652  Scandix pecten-veneris Barbara Ertter, Mary Bowerman, Lisa Schultheis 1995-3-31 13947 Contra Costa Mount Diablo State Park, grassy field along road at base of Mitchell Canyon. Comment
  CAS-BOT-BC111377  Schoenoplectus acutus var. occidentalis John Thomas Howell; Gordon H. True 1972-6-29 48937 Contra Costa Wet soil or shallow water along ditches on Bryon Hot Springs Road SE of Byron. Comment
  CAS-BOT-BC111485  Schoenoplectus americanus Walter Knight 1977-6-10 s.n. Contra Costa Black Diamond Regional Preserve. Sand Creek, near coal mining site of Stewartville 158 Comment
  UCD50093  Schoenoplectus americanus Walter Kinght 1977-6-10 s.n. Contra Costa Sand Creek near coal-mining site of Stewartville, Contra Costa Co. 158 Comment
  JEPS111882  Scirpus americanus A. G. Murdock 2004-6-4 323 Contra Costa Pacheco Marsh 5 Comment
  CAS-BOT-BC110869  Scirpus microcarpus Miss Mary Leolin Bowerman 1942-10-4 3851 Contra Costa Russelman Park Road 243 Comment
  UC2070541  Scleranthus annuus Barbara Ertter with Chris Thayer 2002-4-13 17827 Contra Costa North side of Mount Diablo. Comment
  UC2032823  Scrophularia californica Doran, Andrew Scott 2012-3-20 693 Contra Costa North end of Brooks Island along ridge overlooking artificial spit, southwest of caretakers residence. Comment
  UC691605  Scrophularia californica Mary L. Bowerman 1930-6-18 344 Contra Costa Dan Cook Canyon Mt Diablo Comment
  CHSC39483  Scutellaria tuberosa Tyler Williams 1984-4-18 17 Contra Costa In 10 yd radius of site 4 at Juniper Camp on Summit Rd. in Mount Diablo State Park. 853 Comment
  UC2029121  Scutellaria tuberosa Barbara Ertter with David Gowen and Mike Park 2004-4-13 18352 Contra Costa Black Diamond Mines Regional Park south of Pittsburg, trail system in chaparral/woodland S of Somersville townsite. Comment
  UC2029001  Scutellaria tuberosa Barbara Ertter 2000-3-30 16920 Contra Costa North side of Mount Diablo, in chaparral near base of Back Canyon Trail. Comment
  UC691406  Scutellaria tuberosa Mary L. Bowerman 1931-4-25 771 Contra Costa summit of Mount Diablo (at the junction of the one-way roads) 1143 Comment
  UC2028051  Sedum radiatum Barbara Ertter with Ann Dennis 1998-1-25 15909 Contra Costa Donner Canyon on north side Mount Diablo, Middle Trail/Falls Trail. Comment
  UC692320  Sedum spathulifolium Mary L. Bowerman 1935-6-15 3141 a Contra Costa on rocks just above Ransom Point (Meridian Peak, Mount Diablo); Mount Diablo, Meridian Peak, above Ransom Point Comment
  CAS-BOT-BC363288  Senecio aronicoides L. R. Abrams 1921-5-25 8033 Contra Costa Summit, Mt. Diablo Comment
  JEPS37620  Senecio aronicoides W. L. Jepson 1921-5-22 9210 Contra Costa n slope Mt. Diablo summit; Mt. Diablo Comment
  JEPS79322  Senecio flaccidus var. douglasii Edward Lee with Annetta Carter 1935-8-17 1634 Contra Costa Antioch Comment
  CAS-BOT-BC327444  Senecio flaccidus var. douglasii Walter Knight 1965-3-1 s.n. Contra Costa Overlooking Carquinez Straits Comment
  UC1948955  Senecio glomeratus William J. Ferlatte, L. Maynard Moe 1970-4-27 1266 Contra Costa San Francisco Bay: Red Rock Island Comment
  CAS-BOT-BC363702  Senecio hydrophilus Walter Knight 1977-7-15 s.n. Contra Costa Little Corral site. Antioch Sand Dunes Comment
  UC691361  Senecio sylvaticus Mary L. Bowerman 1933-5-11 2071 Contra Costa most westerly part of 1931 burn Mount Diablo, Inner Black Hills (Mount Diablo, Inner Black Hills) Comment
  UC335828  Senecio triangularis unknown Contra Costa near Mt. Diablo; near Mt. Diablo Comment
Read comments
Feb 11 2013
  JEPS111692  Senecio vulgaris D. G. Kelch 2004-3-13 04 .37 Contra Costa Pinole Valley Pinole Valley Park between Pinole Valley Road and El Sobrante Ridge 36 Comment
  JEPS88722  Sequoia sempervirens W. L. Jepson 1894-10-1 Contra Costa Redwood Peak Oakland Hills, Redwood Peak Comment
  SEINET3561292 Image available Sequoia sempervirens Lewis S. Rose 1934-1-29 34009 Contra Costa Redwood Canyon. Comment
  UC2062676  Sequoia sempervirens Barbara Ertter with Dan Norris 2000-12-3 Contra Costa Mount Diablo, west fork of Sycamore Canyon. Comment
  CDA33679  Sesbania punicea Leopando & Yost 2010-8-18 PDR# 1649543 Contra Costa Martinez: Central Ave. 0 Comment
  SJSU10109  Silene gallica R. L. Fisher 1958-5-10 Contra Costa Nortonville near Clayton Comment
  UC606751  Silene gallica Edward Lee 1936-4-19 1992 Contra Costa Red Rock San Francisco Bay, Red Rock (summit of the island) 54 Comment
  UC692534  Silene verecunda subsp. platyota Mary L. Bowerman 1930-6-7 278 Contra Costa 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
  CAS-BOT-BC364795  Silybum marianum Walter Knight; Bob Doyle; Wayne Roderick; Steve Edwards 1978-9-19 3252 Contra Costa Browns Island. South Landing 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
  SEINET12764843  Sinapis arvensis Barbara Ertter 1998-4-4 15959 Contra Costa Northwest of Mount Diablo, west base of northwestern-most ridge, around old orchard.; 0 Comment
  UCD115440  Sinapis arvensis Joel H. Smith 1940-3-18 13 Contra Costa valley region between Walnut Creek and Martinez. 167 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
  CDA23555  Sisymbrium orientale D. G. Kelch 2008-3-3 8 .027 Contra Costa Carquinez Strait; Crockett. Under Zampa (Carquinez) Bridge. Comment
  CDA3848  Sisymbrium orientale J. Simmen 1973-3-2 Contra Costa Pittsburgh. 0 Comment
  CDA21559  Sisyrinchium bellum D. G. Kelch, D. A. Weinstein 2008-4-25 8 .075 Contra Costa Alvarado Park (west end of Wildcat Canyon Park) on north-facing hillside above Hindu temple in mixed scrub/grassland. Comment
Read comments
Jan 7 2016
  JEPS75489  Sisyrinchium bellum P. F. Yorks 1974-4-28 139 Contra Costa 1.5 km s of Bear Creek Road (on Hampton Road, n of Briones Reservoir); Hampton Road Natural Reserve 160 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
  UC691998  Smilacina stellata Mary L. Bowerman 1933-5-21 2153 Contra Costa below Grape Spring (s from Curry Canyon); Mount Diablo Comment
  UC1606338  Solanum americanum Barbara Ertter, Brad Olson 1991-9-28 10845 Contra Costa between Orinda and El Sobrante (s end of San Pablo Reservoir); San Pablo Reservoir 94 Comment
  CAS-BOT-BC156304  Solanum umbelliferum D. D. Keck 1933-11-2 2619 Contra Costa 1 mi. S.E. of Oakley Comment
  CAS-BOT-BC157453  Solanum umbelliferum A. Eastwood 1915-5-30 4541 Contra Costa Mt. Diablo Comment
  UC456217  Solanum umbelliferum I. J. Condit 1908-8-20 Contra Costa Oakley Comment
  RSA29619  Solanum umbelliferum Joseph A. Ewan 1934-1-14 8163 Contra Costa Near west rim of Wildcat Creek, back of Berkeley. Comment
  SEINET5760775  Solanum umbelliferum Lewis S. Rose 1941-3-13 41026 Contra Costa Marsh Creek, 5 miles east of Clayton Comment
  UCD15025  Solanum umbelliferum Jennifer Roth 1979-4-13 11 Contra Costa Clayton, CA, Concord Mt. Diablo Trail Ride Assoc. grounds, Russelman Park Road off Marsh Creek Road. 396 Comment
  JEPS111655  Solidago velutina subsp. californica A. G. Murdock 2003-9-12 198 Contra Costa Selby Along trail to Superfund overlook 40 Comment
  JEPS78880  Solidago velutina subsp. californica Edward Lee 1936-12-12 2608 Contra Costa s Berkeley Country Club Comment
  CAS-BOT-BC365801  Soliva sessilis Mary L. Bowerman 1931-4-11 689 Contra Costa Mount Diablo. Pine Canyon 121 Comment
  UCD146721  Sonchus tenerrimus G. F. Hrusa; D. Crowe 1998-5-8 14376 Contra Costa Sacramento-San Joaquin River Delta. On Dow Chemical property at Pittsburg. Adjacent to shore of San Joaquin River. 2 Comment
  CDA32680  Spartina foliosa D. G. Kelch 2004-7-9 4 .314 Contra Costa Carquinez Strait Region; Rodeo Shoreline. Comment
  CAS-BOT-BC236643  Spartina patens Rolf Mall 1964-11-19 s.n. Contra Costa Southamton tidal marsh at head of Suisun Bay between Benicia and Vallejo Comment
  UC1818861  Spergularia bocconi Barbara Ertter, Kristin Ertter 1995-7-11 14468 Contra Costa Diablo Foothills Regional Park, dried road bed at base of east-facing cliff. 121 Comment
  OBI17382  Spergularia macrotheca Robert F. Hoover 1967-4-28 10514 Contra Costa Byron Hot Springs Comment
  NY482313  Spergularia macrotheca B. J. Ertter 1990-10-14 9661 Contra Costa Point Isabel Regional Shoreline on San Francisco Bay in sw El Cerrito Comment
  JEPS90794  Spergularia macrotheca var. longistyla Dean W. Taylor 1991-3-21 11601 Contra Costa junction of Byron Hot Springs Road and Holey Road, in a field at the ne corner, San Joaquin Valley San Joaquin Valley 12 Comment
  CAS-BOT-BC390279  Spergularia macrotheca var. longistyla Alice Eastwood 1923-4-28 11667 Contra Costa Byron Springs Comment
  CAS-BOT-BC390742  Spergularia marina John Thomas Howell; Gordon H. True 1972-6-29 48914 Contra Costa On Byron Hot Springs Road southeast of Byron Comment
  JEPS111531  Spergularia marina D. G. Kelch 2005-5-5 05 .215 Contra Costa Point Pinole - Giant Marsh 3 Comment
  SFV1240  Spergularia marina J. M. Tucker 1963-4-12 3687 Contra Costa West side of Holey Road, 3 miles southeast of Byron. Comment
  CHSC116606  Spergularia rubra Lowell Ahart; Josephine Guardino 2016-4-19 20775 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the sides of the dirt roads, 1.8 mile (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
  UC1948952  Spergularia villosa William J. Ferlatte, L. Maynard Moe 1970-4-27 1258 Contra Costa San Francisco Bay: Red Rock Island Comment
  JEPS21817  Stachys ajugoides J. Robison 1958-5-17 68 Contra Costa Vacant lot on 6th St. Albany 7 Comment
  UC606760  Stachys ajugoides var. rigida Edward Lee 1936-4-19 2011 Contra Costa Red Rock, ne slope of island San Francisco Bay Comment
  JEPS99581  Stachys pycnantha Mary Bowerman 1993-10-22 Contra Costa Mount Diablo, Pine Pond. Comment
  UC2055620  Stachys pycnantha Joseph Andorfer Ewan 1933-10-15 8043 Contra Costa Mt. Diablo 1066 Comment
  SJSU10595  Stebbinsoseris heterocarpa W. A. Chappell 1963-4-8 Contra Costa Mt Diablo foothills 3 mi NE of Walnut Cr Comment
  UC407394  Stellaria media Ira L. Wiggins 1930-4-18 4598 Contra Costa n end Jersey Island Comment
  UCD99423  Stellaria media Susan Keefer 1969-4-26 28 Contra Costa east base of Las Trampas Peak, 1.5 miles southwest of Alamo. Comment
  CAS-BOT-BC375205  Stephanomeria elata John Thomas Howell 1925-11-1 1544 Contra Costa Moraga Ridge, Oakland Hills Comment
  UC2028016  Stephanomeria elata Barbara Ertter 1997-9-14 15819 Contra Costa Southwest side of Mount Diablo, Wall Point Road on open sandstone ridge northwest of Wall Point/ Comment
  UC914273  Stephanomeria virgata subsp. pleurocarpa Verne Grant and Alva Grant 1946-9-29 7878 Contra Costa e of Redwood Peak Comment
  UC2028477  Stipa lepida Barbara Ertter with Richard K. Brummitt 1998-5-6 16104 Contra Costa Point San Pablo west of Richmond, crest of road to yacht harbor Comment
  UC2029161  Stipa miliacea var. miliacea Barbara Ertter, CNPS 1990-11-11 9709 Contra Costa Carquinez Straits Regional Park east of Crockett. Comment
  JEPS127235  Stipa pulchra Lowell Ahart, Josephine Guardino 2016-4-19 20793 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest to Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  UC2028403  Stipa pulchra Barbara Ertter with Christopher Baysdorfer 1998-5-10 16121 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, quarry area on west side Comment
  UC2032833  Stipa pulchra Doran, Andrew Scott 2012-3-20 703 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  UC1492706  Streptanthus albidus subsp. peramoenus Freed W. Hoffman 1949-4-16 2762 Contra Costa 2 mi inside North Gate of Mt. Diablo State Park; Mt. Diablo 228 Comment
  UC691145  Streptanthus albidus subsp. peramoenus Mary L. Bowerman 1935-6-8 3123 Contra Costa North Road 2 mi from North Gate (w of chaparral); Mount Diablo Comment
  CAS-BOT-BC87098  Streptanthus glandulosus subsp. glandulosus John Thomas Howell 1942-7-19 17048 Contra Costa Northeast of Deer Flat, Mount Diablo. Comment
  CAS-BOT-BC87100  Streptanthus glandulosus subsp. glandulosus Mary L. Bowerman 1935-5-8 2968 Contra Costa Mount Diablo. West road 2 miles from entrance. 237 Comment
  UC10875  Streptanthus glandulosus subsp. glandulosus Geological Survey 1862-6-16 1268 Contra Costa Mt. Diablo range 975 Comment
  CAS-BOT-BC87332  Streptanthus hispidus John Thomas Howell 1941-4-6 16178 Contra Costa Ridge west of Deer Flat, Mount Diablo. Comment
  CAS-BOT-BC87338  Streptanthus hispidus R. Bacigalupi 1927-5-13 1572 Contra Costa Summit Mount Diablo. Comment
  CAS-BOT-BC87343  Streptanthus hispidus L. R. Abrams 1921-5-25 8059 Contra Costa Summit Mount Diablo. Comment
  UC592151  Streptanthus hispidus H. L. Mason 1929-3-29 5120 Contra Costa Mount Diablo 762 Comment
  UC338175  Streptanthus tortuosus unknown Contra Costa Mount Diablo Comment
Read comments
Jul 6 2020
  UC1950412  Stuckenia pectinata Barbara Ertter with Lynne Hosley 1991-9-22 10824 Contra Costa Lafayette Reservoir in hills SW of Lafayette, at E end of dam Comment
  CAS-BOT-BC422921  Stylomecon heterophylla R. F. Hoover 1968-5-16 11091 Contra Costa Upper Marsh Creek. Comment
  RSA135424  Stylomecon heterophylla Volney Rattan 1883-04 s.n. Contra Costa Martinez. Comment
  SEINET3160771  Stylomecon heterophylla L. S. Rose 1940-4-30 40247 Contra Costa Marsh Creek, 6 mi. e. of Clayton 46 Comment
  UC692177  Stylomecon heterophylla Mary L. Bowerman 1931-4-19 749 Contra Costa Mitchell Canyon Mount Diablo; , Mitchell Canyon Comment
  CAS-BOT-BC422909  Stylomecon heterophylla Mary L. Bowerman 1932-5-6 1410 Contra Costa Mount Diablo. Mitchell Canyon: West bank by floor of canyon. 243 Comment
  POM300582  Stylomecon heterophylla Mary L. Bowerman 1932-5-6 1410 Contra Costa Mount Diablo; Mitchell Canyon: West bank by floor of canyon 183 Comment
  UC7235  Suaeda moquinii T. J. Storer Sep 1899 Contra Costa Byron Springs Comment
  CDA9506  Suaeda nigra D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .233 Contra Costa Byron Airport. Comment
  JEPS100085  Symphoricarpos albus var. laevigatus A. Langston 2003-7-24 AL 71 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC691623  Symphoricarpos albus var. laevigatus Mary L. Bowerman 1930-8-24 419 Contra Costa Mitchell Canyon Mount Diablo (a little above end of road) Comment
  OBI75132  Symphoricarpos mollis D. G. Kelch, D. A. Weinstein 2008-4-25 8 .084 Contra Costa Alvarado Park (W end of Wildcat Canyon Park) 122 Comment
  UC691622  Symphoricarpos mollis Mary L. Bowerman 1933-5-21 2159 Contra Costa ridge between two forks Sulphur Springs Canyon; Mount Diablo 426 Comment
  CAS-BOT-BC97696  Symphyotrichum chilense Barrett Anderson 1987-7-23 3563 Contra Costa Building site on San Pablo Road at Garrity Creek, Pinole 45 Comment
  UC2046321  Symphyotrichum lanceolatum var. hesperium Barbara Ertter 2000-10-26 17550 Contra Costa West side Mount Diablo, Little Pine Creek near park boundary, just upstream from Falcon Road creek crossing. Comment
  UC1561251  Symphyotrichum subspicatum Barbara Ertter 1989-9-30 8867 Contra Costa e of, (East Bay Skyline Nat'l Recreatn Trail (= Nimitz Way) n of Inspiration P. El Cerrito; Tilden Regional Park Comment
  UCD159501  Symphyotrichum subulatum var. parviflorum D. S. Park 2010-9-11 250 -2 Contra Costa Waterfront Rd. Growing along roadside. Disturbed. Wet. 5 Comment
  CAS-BOT-BC99396  Symphyotrichum subulatum var. parviflorum W. L. Jepson 1891-9-16 s.n. Contra Costa at New Town landing, Lower Sacramento River Comment
  CHSC75158  Tanacetum parthenium Roger Thom 1987-5-24 14 Contra Costa 3354 Johnson Rd., Lafayette. 167 Comment
  UC1301106  Taraxia ovata Helen K. Sharsmith 1962-4-18 4957 Contra Costa Reliez Valley Rd. San Francisco Bay Region 152 Comment
  UCD96763  Thalictrum fendleri var. polycarpum Margaret Siri 1974-5-12 39 Contra Costa East-west canyon off-shoot, east of the bottom of Rifle Range Road, Wildcat Canyon. Comment
  NY185781  Thelypodium rigidum E. L. Greene 1887-4-17 s.n. Contra Costa Comment
  CAS-BOT-BC88256  Thysanocarpus curvipes Katharine Brandegee 1907-5-1 s.n. Contra Costa Antioch. Comment
  JEPS54176  Thysanocarpus curvipes W. L. Jepson 1922-5-23 9666 Contra Costa Mt. Diablo Comment
  JEPS68963  Thysanocarpus curvipes Edward Lee 1935-3-10 1295 Contra Costa e. Antioch (Antioch Sand Dunes); Antioch Sand Dunes Comment
  UC402567  Thysanocarpus curvipes H. P. Chandler 1900-3-23 Contra Costa Fish Ranch Road; Region of Mount Diablo, Fish Ranch Road Comment
  UC614830  Thysanocarpus curvipes Beryl O. Schreiber 1932-3-27 163 Contra Costa near Antioch; near Antioch Comment
  UC691251  Thysanocarpus curvipes Mary L. Bowerman 1931-4-19 740 Contra Costa Mitchell Canyon below Deer Flat Mount Diablo (Mount Diablo); , Mitchell Canyon below Deer Flat Comment
  CAS-BOT-BC88255  Thysanocarpus curvipes John Thomas Howell 1934-4-8 11822 Contra Costa Marsh Creek Road southwest of Brentwood. Comment
  CAS-BOT-BC88261  Thysanocarpus curvipes Paul F. Covel 1936-4-19 210 Contra Costa Las Trampas (Cashion) Canyon. Comment
  UC117265  Thysanocarpus curvipes unknown Contra Costa Antioch; Epperson's Comment
  UC11030  Thysanocarpus curvipes subsp. curvipes Brewer 1862-1 Contra Costa Mount Diablo Comment
  POM203036  Thysanocarpus curvipes var. curvipes J. T. Howell 1934-4-8 11822 Contra Costa Marsh Creek Road, SW of Brentwood. Comment
  UC10988  Thysanocarpus laciniatus W. H. Brewer 1862-5-17 1102 Contra Costa on dry hill n Mount Diablo; n of Mount Diablo Comment
  UC691139  Thysanocarpus laciniatus Mary L. Bowerman 1932-3-27 1138 Contra Costa Mount Diablo , below Mitchell Rock (below Mitchell Rock) Comment
  CAS-BOT-BC67283  Thysanocarpus radians T. S. Brandegee 1883-5-1 s.n. Contra Costa Antioch. Comment
  UCD102379  Tonella tenella Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 890 Comment
  JEPS111507  Torilis arvensis D. G. Kelch 2005-5-13 05 .269 Contra Costa Martinez - South Tall hill in South Martinez and North of I-4 96 Comment
  UC692379  Torilis nodosa Mary L. Bowerman 1933-5-21 2149 Contra Costa Grape Spring (off Sulphur Spring Canyon) 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
  UC17924  Toxicodendron diversilobum W. H. Brewer 1862-5-10 1068 Contra Costa near Clayton Clayton Comment
  UC32605  Trichostema lanceolatum A. B. Simonds Contra Costa Mount Diablo Comment
  UC1614107  Trifolium Charles M. Belshaw 1935-6-24 790 Contra Costa ca. 1/2 mi. e. Grizzly Peak (Bald Peak); Bald Peak Comment
  CDA23601  Trifolium albopurpureum D. G. Kelch 2008-4-12 8 .035 Contra Costa Mt Diablo. Mitchell Canyon. Along road looping north of main Mitchell Canyon Rd. Comment
  UC555617  Trifolium albopurpureum var. albopurpureum H. L. Mason 1929-5-7 5261 Contra Costa Moraga Ridge Comment
  UC692673  Trifolium albopurpureum var. albopurpureum Mary L. Bowerman 1933-4-15 1858 Contra Costa s Arroyo del Cerro (canyon) Comment
  UC2028215  Trifolium albopurpureum var. dichotomum Barbara Ertter with Richard K. Brummitt 1998-5-13 16131 Contra Costa Summit Road on Mount Diablo, base of rock outcrop/roadcut above Juniper Camp. Comment
  UC1795796  Trifolium albopurpureum var. olivaceum Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14225 Contra Costa Mt. Diablo southeast of Walnut Creek, serpentine knoll ca 1/2 air-mile north of Curry Point. 487 Comment
  UC555601  Trifolium bifidum var. decipiens H. L. Mason 1929-4-25 5205 Contra Costa Marsh Creek Rd Comment
  CDA28898  Trifolium campestre D. G. Kelch, Jessica Kolman 2009-5-29 9 .309 Contra Costa Carquinez Strait; Pinole Valley Park, near ridgetop. Comment
  SBBG29985  Trifolium ciliolatum J. T. Howell 1933-5-14 11245 Contra Costa hills E of St Mary's College Comment
  UC1607585  Trifolium ciliolatum Barbara Ertter 1991-6-1 10077 Contra Costa w Danville (in hills at n end of Rocky Ridge Trail); Las Trampas Regional Wilderness 548 Comment
  UC555456  Trifolium ciliolatum H. L. Mason 1929-4-25 5204 Contra Costa Marsh Creek Rd Comment
  UC692253  Trifolium ciliolatum Mary L. Bowerman 1931-4-19 745 Contra Costa below Deer Flat; Mount Diablo Comment
  RSA0068498  Trifolium ciliolatum Katie Gallagher, Nick Jensen 2014-4-26 176 Contra Costa Las Trampas Regional Wilderness. 365 Comment
  UC1818906  Trifolium ciliolatum Barbara Ertter, Chris Thayer 1995-4-25 13988 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Devil's Slide area of Sycamore Canyon, roadside thru chaparral zone. 304 Comment
  UC146911  Trifolium depauperatum var. amplectens J. Burtt Davy 1897-4-17 Contra Costa Point Isabel Comment
  UC16529  Trifolium depauperatum var. amplectens C. Michener 1891-4-23 Contra Costa Point Isabel Comment
  UC1819261  Trifolium depauperatum var. amplectens Barbara Ertter, Mary Bowerman et al. 1995-5-7 14045 Contra Costa Three Springs Trail on northeast side of Mt. Diablo southeast of Clayton, grassy flat, roadside vegetation, clay substrate. Comment
  RSA537536  Trifolium depauperatum var. amplectens Barbara Ertter, Jim Jokerst, Dave Magney 1989-4-5 8134 Contra Costa Alkali sink W and adjacent to Clifton Court Forebay, ca 15 air miles SW of Stockton. Comment
  UC2070477  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
  UC630925  Trifolium depauperatum var. depauperatum P. B. Kennedy 1928-4-19 10035 b Contra Costa Byron 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
  JEPS2905  Trifolium depauperatum var. depauperatum E. L. Greene April, 1884 Contra Costa Byron Comment
  JEPS65731  Trifolium depauperatum var. truncatum W. L. Jepson 1917-4-14 6867 Contra Costa Oakland Hills, near Redwood Peak Comment
Read comments
Dec 17 2008
  UC165577  Trifolium depauperatum var. truncatum J. Burtt Davy 1895-1 938 Contra Costa Antioch Comment
  UCD84949  Trifolium depauperatum var. truncatum Chuck Hughes 2010-3-29 221 Contra Costa About 0.4 mile southeast of Vasco Road. 124 Comment
  UC1795835  Trifolium depauperatum var. truncatum Barbara Ertter, Gary Schoolcraft 1996-4-7 14571 Contra Costa Point San Pablo in west Richmond, crest of road to yacht harbor, coastal grassland along ridge, scraped roadbed to tower. Comment
  UC2028953  Trifolium depauperatum var. truncatum Barbara Ertter 2003-3-28 18122 Contra Costa Round Valley Regional Preserve, Fox Trail ca 1/8 mile west of junction with valley trail. Comment
  POM18457  Trifolium dichotomum C. F. Baker 1903-4-27 2797 Contra Costa Byron. Comment
  SD37270  Trifolium dichotomum Mc Callum 1933-4-25 2140 Contra Costa Low hills near Tassajara Comment
  UC1618358  Trifolium dubium Barbara Ertter, Chris Thayer 1993-5-7 11713 Contra Costa 1/2 mi n of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land e of Tilden Park (s of Wildcat Canyon Road); East Bay Municipal Utilities District land Comment
  JEPS65884  Trifolium fucatum E. L. Greene 1889-3-25 Contra Costa Byron Comment
  UC1197027  Trifolium fucatum J. P. Tracy 1900-3-24 601 A Contra Costa near Point Richmond 3 Comment
  UC16536  Trifolium fucatum W. H. Brewer 1862-4-24 990 Contra Costa Camp 68 Martinez Comment
  UC70198  Trifolium fucatum J. Burtt Davy May 1898 Contra Costa Danville region of Mount Daiblo Comment
  UC631616  Trifolium fucatum P. B. Kennedy 1928-4-28 10096 Contra Costa 2 mi from Tunnel (on hwy) Comment
  UCD109005  Trifolium fucatum P. B. Kennedy 1928-4-15 10056 Contra Costa Pinehurst. Comment
  POM194649  Trifolium fucatum var. fucatum Y. Mexia 1929-4-21 2369 Contra Costa Moraga Valley. Comment
  UC16557  Trifolium gracilentum W. H. Brewer 1862-5-19 1116 Contra Costa n Kirker's Pass Comment
  UC16559  Trifolium gracilentum W. H. Brewer 1862-4-30 1010 Contra Costa Camp 69 Walnut Creek Comment
  UC400157  Trifolium gracilentum Ynes Mexia 1929-4-21 2375 Contra Costa Moraga Valley Comment
  UC631031  Trifolium gracilentum Mrs. K. Brandegee May 1907 Contra Costa Antioch Comment
  JEPS111084  Trifolium hirtum Lee Echols 2003-3-3 s.n. Contra Costa S of Lark Drive and EPA building within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  UCD146715  Trifolium incarnatum G. F. Hrusa; D. Crowe 1998-5-8 14364 Contra Costa Sacramento-San Joaquin River Delta. Within Dow Chemical property at Pittsburg. 10 Comment
  UC555619  Trifolium macraei H. L. Mason 1928-4-13 4303 Contra Costa Richmond waterfront Comment
  JEPS89577  Trifolium microcephalum Dean W. Taylor 1992-4-16 12395 Contra Costa s. Byron Hot Springs (in swale draining on e. margin <of TRS coordinates>); San Joaquin Valley, Clifton Court Forebay 7 1/2 USGS map 45 Comment
  UC16620  Trifolium microcephalum W. H. Brewer 1862-5-26 1164 Contra Costa near Mount Diablo Comment
  UC692669  Trifolium microdon Mary L. Bowerman 1935-4-19 2872 Contra Costa ca 7 mi w Northgate (by rd, ridge w of the power poles, above the rd junction); Mount Diablo 670 Comment
  CDA31874  Trifolium oliganthum D. G. Kelch 2008-4-6 8 .034 Contra Costa Black Diamond Mines Regional Park. Near small picnic area between parking lot and mine entrance. 0 Comment
  UC2027837  Trifolium oliganthum Barbara Ertter with Dan Norris 2001-4-15 17609 Contra Costa West side Mount Diablo, head of W-facing drainage west of China Wall rock formation (off trail between Hanging Valley Trail and China Wall Road). Comment
  CHSC116629  Trifolium tomentosum Lowell Ahart; Josephine Guardino 2016-4-19 20760 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. On both sides of the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  JEPS102894  Trifolium tomentosum Barbara Ertter 1998-5-3 16063 Contra Costa NW end of connector trail between BBQ Terrace Road and Wall Point Road Mount Diablo State Park 365 Comment
  JEPS125936  Trifolium tomentosum D. W. Taylor 2001-3-28 17620 Contra Costa Berkeley Hills; on slopes about 0.75 miles S of Hwy 24 at E portal of the Caldecott Tunnel Comment
  CHSC21627  Trifolium willdenovii Willis Ball 1975-3-9 485 Contra Costa Contra Loma Regional Park. In area #8. On n facing slope on small level mound ca. 450 yds s of main parking lot ca. 750 yds w of Contra Loma Blvd. 76 Comment
  JEPS4355  Trifolium willdenovii W. L. Jepson 1925-4-26 10691 Contra Costa Mt. Diable Comment
  JEPS75464  Trifolium willdenovii P. F. Yorks 1975-4-27 383 Contra Costa ca 1.9 km s Bear Creek Rd (on Hampton Rd, n of Briones Reservior); Hampton Rd Natural Reserve 200 Comment
  OBI12643  Trifolium willdenovii W. L. Jepson 1925-4-26 10691 Contra Costa Mt. Diablo Comment
  UC1197525  Trifolium willdenovii J. P. Tracy 1900-3-24 604 Contra Costa near Stege 9 Comment
  UC16730  Trifolium willdenovii J. Burtt Davy 1895-4-7 991 Contra Costa Antioch Comment
  UC1948963  Trifolium willdenovii William J. Ferlatte, L. Maynard Moe 1970-4-27 1261 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC630906  Trifolium willdenovii P. B. Kennedy 1907-5-5 Contra Costa Lake Merritt Oakland Comment
  RSA32719  Trifolium willdenovii A. A. Heller 1938-4-9 15017 Contra Costa 3 miles southwest of Antioch. Comment
  RSA91555  Trifolium willdenovii J. T. Howell 1933-5-14 11231 Contra Costa St. Mary's College. Comment
  UCD109865  Trifolium willdenovii Jo Nixon 1951-5-6 19 Contra Costa Green Ranch, Mt. Diablo. 609 Comment
  UCD35901  Trifolium willdenovii Beecher Crampton 1966-4-26 7665 Contra Costa ca. 2.5 miles west of Martinez on the road to Crockett. Comment
  UC2028290  Trillium chloropetalum Barbara Ertter with Dan Norris 1998-6-18 16227 Contra Costa Junction of W Fork Sycamore Creek (= Madrone Canyon) and Sycamore Creek Road. Comment
  UC691568  Triphysaria eriantha subsp. eriantha Mary L. Bowerman 1931-4-4 650 Contra Costa North Rd = near west road (between 1 and 4.5 mi from entrance) Mount Diablo Comment
  SBBG26806  Triphysaria eriantha subsp. eriantha J. A. Ewan 1934-4-8 8762 Contra Costa head of Hog Cyn, S slope of Mt Diablo 640 Comment
  JEPS23260  Triphysaria pusilla G. Thomas Robbins 1959-4-26 4004 Contra Costa about 1/4 mi n San Pablo Oil Tank Farm (open slope about 1 mi ne of Giant) 15 Comment
  UC1562647  Triphysaria pusilla Barbara Ertter with John Little 1989-4-2 8105 Contra Costa Hillside Park El Cerrito (El Cerrito, level portions of old road); , Hillside Park Comment
  UC691571  Triphysaria pusilla Mary L. Bowerman 1931-3-29 615 Contra Costa foot of Cave Point Ridge Mount Diablo; , foot of Cave Point Ridge Comment
  SEINET238875 Image available Trisetum canescens Beecher Crampton 1956-5-14 3423 Contra Costa 2 miles west of Martinez on road to Crockett. Comment
  JEPS112499  Triteleia hyacinthina D. G. Kelch 2004-4-26 04 .145 Contra Costa Pt. Pinole. 1 Comment
  CDA29245  Triteleia laxa D. G. Kelch 2004-5-9 4 .204 Contra Costa Carquinez Strait Region; Crockett - Upper Edwards Canyon above Crockett Boulevard. Comment
  JEPS120268  Triteleia laxa Barbara Ertter with David Gowen 2012-6-9 21020 Contra Costa Seaview Trail on morth side of Vollmer Peak, southeastern Tilden Park in Berkeley Hills 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
  JEPS58064  Triteleia laxa W. L. Jepson 1919-6-8 8332 Contra Costa Mt. Diablo Comment
  UC1948966  Triteleia laxa William J. Ferlatte, L. Maynard Moe 1970-4-27 1229 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC3318  Triteleia laxa W. H. Brewer 1862-4-25 995 Contra Costa Martinez Comment
  UCSB829  Triteleia laxa Hand, B. 1960-4-10 Contra Costa 1.8 miles from south gate on Mt. Diablo road, Mt. Diablo Comment
  CAS-BOT-BC200472  Triticum aestivum Alice Eastwood 1921-4-18 10314 Contra Costa Antioch Comment
  JEPS100033  Triticum aestivum S. O'Neil 2003-5-8 SEO 32 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS54270  Tropidocarpum capparideum Edward Lee Greene 1888-3-24 Contra Costa Byron Spr. Comment
  CAS-BOT-BC67407  Tropidocarpum gracile Lewis S. Rose 1934-3-21 34066 Contra Costa 6 miles east of Clayton. Comment
  SBBG27387  Tropidocarpum gracile L. S. Rose 1934-3-21 34066 Contra Costa 6 mi E of Clayton Comment
  UC2070553  Tropidocarpum gracile Barbara Ertter with David Gowen 2006-6-6 18675 Contra Costa Upper San Leandro Reservoir Watershed (EBMUD) south of Moraga, on Rocky Ridge Tail. Comment
  SEINET201988 Image available Typha domingensis Malcolm A. Nobs, S. Galen Smith 1949-1 879 Contra Costa about two miles south of Crocket on road to Martinez Comment
  UC2028231  Ulmus minor Barbara Ertter 1998-11-15 16465 Contra Costa North side Mount Olympia on north side Mount Diablo. Comment
  CDA24512  Umbellularia californica D. G. Kelch 2007-3-24 7 .082 Contra Costa Carquinez Strait; Ozol; between Port Costa and Martinez, near old brick quarry. Comment
  OBI13419  Umbellularia californica H. E. McMinn, E. Maino 1931-2-15 13 Contra Costa Leona Heights Comment
Read comments
May 22 2013
  JEPS100166  Uropappus lindleyi G. Smick 2003-4-8 GAS 129 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS36207  Uropappus lindleyi W. L. Jepson 1922-5-23 9669 Contra Costa n slope Mt. Diablo; n slope Mt. Diablo Comment
  JEPS75559  Uropappus lindleyi P. F. Yorks 1974-5-10 156 Contra Costa ca 1.6 km from Bear Creek Road on Hampton Road in Hampton Road Natural Reserve (n of Briones Reservoir) 180 Comment
  UC1048164  Uropappus lindleyi Univ. of Calif., Division of Genetics 1937-1-1 382 Contra Costa Comment
  UCD136959  Uropappus lindleyi P. B. Kennedy 1925-4-26 s.n. Contra Costa Mt. Diablo, road to Sycamore Canyon. Comment
  UC2029095  Urospermum picroides Barbara Ertter 1990-6-18 9133 Contra Costa Tilden Regional Park, along Nimitz hiking/bicycle trail near Inspiration Point Comment
  CAS-BOT-BC199244  Vaccinium ovatum John Thomas Howell 1925-9-12 1435 Contra Costa Oakland Hills at head of San Leandro Canyon Comment
  JEPS81010  Verbena lasiostachys var. scabrida Edward Lee 1936-12-12 2609 Contra Costa just nw Berkeley Country club Comment
  UC2029170  Verbena lasiostachys var. scabrida Barbara Ertter 2000-7-16 17409 Contra Costa Pine Creek on WNW base of Mount Diablo. Comment
  JEPS39065  Verbena lasiostachys var. scabrida Robert Brandt 1914-7-16 Contra Costa Wildcat Canon, Berkeley Hills. Comment
  CDA9278  Verbena scabra D. G. Kelch 2002-7-15 2 .006 Contra Costa CA Delta; Old San Joaquin River channel, E of Brentwood. San Joaquin County border. 0 Comment
  CDA33884  Verbesina encelioides subsp. encelioides Slattengren 2010-10-26 PDR# 1454172 Contra Costa Oakely; 31 Delta Rd. 0 Comment
  JEPS127090  Veronica peregrina Lowell Ahart, Josephine Guardino 2016-4-19 20781 Contra Costa 1.4 miles (air) northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Spring USGS 7.5' Quad. Comment
  UC2028187  Veronica peregrina subsp. xalapensis Barbara Ertter 1998-5-3 16056 Contra Costa Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. Comment
  JEPS99479  Veronica persica Mary Bowerman 1978-4-10 Contra Costa Mount Diablo. Morgan Territory Rd. at Oak Hill Lane. Comment
  UC1005836  Viburnum suspensum N. Floy Bracelin 1945-5-27 2852 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California 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
  CDA29047  Vicia sativa subsp. sativa D. G. Kelch 2006-5-4 6 .133 Contra Costa East Bay.; Wildcat Canyon. nr Wildcat Canyon Rd terminus. Comment
  UCD108921  Vicia sativa subsp. sativa R. Koch 1996-4-20 1 Contra Costa city of Danville, free space by Mt. Diablo State Park. 121 Comment
  UC2027991  Vicia sativa subsp. sativa Barbara Ertter with Tony Morosco 1998-4-12 16027 Contra Costa Quarry road at base of Mount Olympia, north side of Mount Diablo. Comment
  UCD108957  Vicia sativa subsp. sativa G. Thomas Robbins 1959-4-18 3988 Contra Costa On slope overlooking San Pablo Bay, about 1/2 mile east of Pt. San Pablo, Richmond. 7 Comment
  JEPS99510  Vicia villosa subsp. varia Mary Bowerman 1994-4-17 Contra Costa Mount Diablo. Path (graveled road) from end of Regency Drive, Clayton. Entry to Donner Canyon. Comment
  UC1300882  Vicia villosa subsp. varia Helen K. Sharsmith 1962-4-18 4946 Contra Costa road above Carquinez Straits (Crockett-Martinez road); San Francisco Bay Region 60 Comment
  UC1795794  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.; annual grassland near Indian Valley School entrance, clay soil (planted Clarkia also present). 91 Comment
  UCD108659  Vicia villosa subsp. varia Helen K. Sharsmith 1962-4-18 4946 Contra Costa Crockett-Martinez road above Carquinez Straits. 60 Comment
  UC2032828  Viola pedunculata Doran, Andrew Scott 2012-3-20 698 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  UC19317  Viola pedunculata Ivar Tidestrom 1893-4-15 Contra Costa Sheep Island; San Francisco Bay, Sheep Island Comment