Search Results — 2000 specimen records retrieved (1344 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UC1211990  Abutilon theophrasti R. P. and Perry Allen 1961-8-11 Contra Costa 4 mi e Byron Comment
  RSA0029772  Acacia cyclops Barbara J. Ertter 1990-10-14 9660 Contra Costa Point Isabel Regional Shoreline on San Francisco Bay in SW El Cerrito, on abandoned railroad track at end of Rydin Road. Comment
  UC1050374  Acacia dealbata N. Floy Bracelin 1942-7-4 2174 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS87956  Acacia melanoxylon Barbara Ertter 1991-5-12 9815 Contra Costa in sw corner El Cerrito (Point Isabel Regional Shoreline, along old railroad right-of-way between bay and salicornia marsh); San Francisco Bay, Point Isabel Regional Shoreline Comment
  CAS-BOT-BC436988  Acaena pinnatifida var. californica H. M. Hall 1901-3-17 1655 Contra Costa Point Richmond Comment
  JEPS42649  Acer macrophyllum W. L. Jepson 1908-4-4 3005 Contra Costa West Branch San Pablo Creek Comment
Read comments
Jul 7 2011
  JEPS75525  Acer macrophyllum P. F. Yorks 1976-4-6 124 Contra Costa on Hampton Road ca 1.7 km s Bear Creek Road (e of road, n of Briones Reservoir); Hampton Road Natural Reserve 200 Comment
  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
  CAS-BOT-BC334180  Acer negundo var. californicum Annetta Carter 1937-3-28 1227 Contra Costa Creek bank, Moraga Valley, 2.5 miles north of Moraga 182 Comment
  SEINET3195242 Image available Acer negundo var. californicum Annetta Carter 1937-4-4 1229 Contra Costa Creek bank, Moraga Valley, 2.5 miles north of Moraga 180 Comment
  UC1050367  Acer palmatum N. Floy Bracelin 1942-7-4 2183 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  SEINET10614426  Achillea millefolium John T. Middleton 1936-4-18 Middleton 142 Contra Costa Comment
  SEINET242634 Image available Achnatherum thurberianum M. E. Barkworth, S. W. L. Jacobs; Betty Jacobs 2003-4-7 2003 /4 Contra Costa Tilden Regional Park, east of Berkeley Comment
  CAS-BOT-BC29882  Achyrachaena mollis J. H. Thomas 1953-4-25 2999 Contra Costa about 2 miles southwest of Brentwood Comment
  CAS-BOT-BC30414  Achyrachaena mollis Dr. A. Kellogg; W. G. W. Harford 1868-1-1 523 Contra Costa Mt. Diablo Comment
  JEPS111752  Achyrachaena mollis D. G. Kelch 2005-4-15 05 .153 Contra Costa Rodeo Creek EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump) 220 Comment
  RSA15448  Achyrachaena mollis Alice Eastwood, J. T. Howell 1936-4-19 s.n. Contra Costa Nortonville. Comment
  UC1046583  Achyrachaena mollis Alex D. Hawkes and R. Bacigalupi 1951-4-12 4775 Contra Costa meadow near Walnut Creek Comment
  CAS-BOT-BC29886  Achyrachaena mollis Ira L. Wiggins 1930-4-17 4561 Contra Costa 1 mile east of Mountain Home on road to Byrn Comment
  POM181443  Achyrachaena mollis I. L. Wiggins 1930-4-17 s.n. Contra Costa 1 mile E of Mountain House on road to Byron Comment
  UC29283  Achyrachaena mollis J. Burtt Davy May 13 1893-Jan 1 1900 766 Contra Costa Comment
  SBBG40322  Acmispon americanus W. J. Dress 1951-7-3 3470 Contra Costa a few mi S of Moraga 152 Comment
  RSA0068490  Acmispon brachycarpus Katie Gallagher, Nick Jensen 2014-4-26 184 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  JEPS111509  Acmispon glaber Dean G. Kelch and Andrew G. Murdock 2005-5-13 05 .271 Contra Costa Martinez - South; County: Contra Costa; Tall hill in South Martinez and North of I-4. Comment
  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
  UCD104491  Acmispon wrangelianus Morris Halperin 1929-4-21 s.n. Contra Costa Moraga Valley. Comment
  JEPS99944  Adenostoma fasciculatum G. Smick 2003-5-13 GAS 190 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  SEINET4089806  Adenostoma fasciculatum B. C. Templeton 1962-1 sn Contra Costa Mount Diablo. Comment
  CAS-BOT-BC206881  Aesculus californica Barrett Anderson 1987-4-30 3494 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD. 125 Comment
  LA205596  Aesculus californica J. A. Ewan; 1935-2-3 9082 Contra Costa Wildcat Creek 0.25 mi. below Orinda road bridge Comment
  OBI49101  Aesculus californica Joseph Andorfer Ewan 1936-5-31 9715 Contra Costa Wildcat Crk Comment
  CAS-BOT-BC202596  Aesculus californica Volney Rattan 1887-5-27 s.n. Contra Costa Alhambra Val. Comment
  UC1952817  Ageratina adenophora Barbara Ertter 2010-5-12 19833 Contra Costa Miller Knox Regional Shoreline at south edge of Point RIchmond, dogleg turn in recently re-routed stretch of Crest Trail below False Gun point Comment
  SEINET11854999  Agoseris grandiflora W. L. Jepson 1943-1 20846 Contra Costa Moraga Ridge Comment
  UC1818937  Agoseris heterophylla Barbara Ertter, Mary Bowerman et al. 1995-5-7 14049 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, grassy flat, roadside vegetation, clay substrate. Comment
  UCD128609  Agoseris heterophylla P. B. Kennedy 1925-4-26 s.n. 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
  JEPS36324  Agoseris hirsuta W. L. Jepson 1922-5-26 9673 Contra Costa North Berkeley Hills; Berkeley Hills (North) Comment
  SBBG115406  Agropogon littoralis B. Crampton 1959-9-3 5454 Contra Costa ca. 2 mi N of Orinda, Bear Crk, East Bay Municipal Utilities District Project Comment
  POM319553  Agrostis Patricia Wilder 1961-8-27 1066 Contra Costa Walnut Creek, near Calif. Hwy 24. 24 Stanley Court. 42 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
  UCD52550  Agrostis exarata var. pacifica Beecher Crampton 1959-9-3 5455 Contra Costa cleared bed of Bear Creek, 2 miles north of Orinda. Comment
  JEPS107127  Agrostis hallii Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14221 Contra Costa Mt. Diablo southeast of Walnut Creek, north of Curry Point. 518 Comment
  JEPS400  Agrostis hallii W. L. Jepson 1937-7-2 18447 Contra Costa 0.5 mi w Crokcett Comment
  JEPS41061  Agrostis pallens Rimo Bacigalupi, and L. R. Heckard 1965-5-11 9084 Contra Costa sw of Richmond; San Francisco Bay, Brooks Island 30 Comment
  CAS-BOT-BC138661  Agrostis stolonifera Walter Knight; Joanne Dean 1978-8-14 3172 Contra Costa Browns Island. Comment
  SEINET5538014  Agrostis stolonifera J. Hamai 1985-1 s.n. Contra Costa Russell Reserve. Comment
  CDA19209  Agrostis viridis Whitlock 2001-4-3 PDR 041591 Contra Costa San Francisco Bay Area; At San Joaquin yacht harbor, Antioch. 0 Comment
  UC692385  Agrostis viridis Mary L. Bowerman 1933-11-4 2462 Contra Costa Alder Creek Springs Mount Diablo 487 Comment
  JEPS111085  Aira caryophyllea Lee Echols 2003-7-7 s.n. Contra Costa N of Lark Drive in central portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  UC2028373  Aira caryophyllea Barbara Ertter 1998-6-20 16233 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo. Alkali Pond at Wiget Lane entrance. Comment
  CAS-BOT-BC138387  Aira caryophyllea var. caryophyllea Mary L. Bowerman 1942-5-24 3844 Contra Costa Mount Diablo. Lower Rock City Camp, Fossil Ridge. 457 Comment
  UC1618271  Alisma plantago-aquatica Barbara Ertter 1990-9-10 9638 Contra Costa s of Martinez (Briones Regional Park, Briones Hills, at margin of main Sindicich Lagoon); Briones Regional Park, Briones Hills 365 Comment
  CAS-BOT-BC445379  Alisma plantago-aquatica Mary L. Bowerman 1933-9-9 2429 Contra Costa Mount Diablo. Frog Pond. Comment
  UC2028451  Alisma triviale Barbara Ertter with Joanne Kerbavaz 2000-8-20 17500 Contra Costa Frog Pond on southeast side of Mount Diablo Comment
  CAS-BOT-BC175360  Allenrolfea occidentalis J. Burtt Davy 1898-5-1 s.n. Contra Costa Byron Springs, Mt. Diablo region Comment
  CDA9505  Allenrolfea occidentalis D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .232 Contra Costa Byron Airport. Comment
  UC116547  Allenrolfea occidentalis K. Brandegee 1885-1 Contra Costa near Antioch Antioch Comment
  UC767482  Allium crispum R. F. Hoover 1939-3-29 3944 Contra Costa Kircker Pass Comment
Read comments
Feb 8 2013
  CDA2750  Allium neapolitanum D. G. Kelch, A. G. Murdock 2004-4-11 4 .073 Contra Costa Carquinez Strait; Hillside above Rolf Drive, Crockett. Lower Crolona Heights. Comment
  JEPS47586  Allium serra W. L. Jepson 1943-5-27 20841 Contra Costa n side of Black Hills Mt. Diablo, Black Hills Comment
  UC766759  Allium serra R. F. Hoover 1936-3-19 808 Contra Costa Pittsburg Comment
  UC796584  Allium serra Reed C. Rollins 1946-3-25 3043 Contra Costa w slope of Mount Diablo Mount Diablo Comment
  UC692022  Allium unifolium Mary L. Bowerman 1932-5-6 1425 Contra Costa near road, Mitchell Canyon Mt. Diablo, Mitchell Canyon 243 Comment
  UC692025  Allium unifolium Mary L. Bowerman 1932-5-6 1426 Contra Costa near road, Mitchell Canyon Mt. Diablo, Mitchell Canyon 243 Comment
  POM300633  Allium unifolium Mary L. Bowerman 1931-4-19 750 Contra Costa Mitchell Canyon, Mt. Diablo. Comment
  SEINET3151683  Allocarya trachycarpa L. S. Rose 1936-4-24 36151 Contra Costa 10 miles S of Antioch 30 Comment
  CAS-BOT-BC170927  Alnus rhombifolia Mary L. Bowerman 1931-10-13 1058 Contra Costa Mount Diablo. Alamo Canyon 259 Comment
  CAS-BOT-BC170925  Alnus rhombifolia John Thomas Howell 1925-9-19 1474 Contra Costa East side of Moraga Ridge, Oakland Hills Comment
  SEINET3917842  Alopecurus myosuroides George Murray 1964-5-24 s.n. Contra Costa Near San Pablo Dam.; 0 Comment
  CDA31390  Alopecurus saccatus P. B. Kennedy 1916-5-11 Contra Costa Richmond, Grand View Terrace. 0 Comment
  UC768586  Alopecurus saccatus R. F. Hoover 1937-5-14 2120 Contra Costa Byron Hot Springs Comment
  CDA3269  Amaranthus albus A. G. Murdock, D. G. Kelch 2004-5-28 303 Contra Costa Carquinez Strait; Luzon. Comment
  UC691932  Amaranthus albus Mary L. Bowerman 1935-6-28 3176 Contra Costa s of Meridian Peak summit (300 yds e of the meridian fence); Mt. Diablo 487 Comment
  UC2028195  Amaranthus albus Barbara Ertter 1997-8-18 15768 Contra Costa Disturbed area adjacent to Antioch Dunes NWR east of Antioch. 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
  CDA9491  Amaranthus blitoides D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .215 Contra Costa Byron Airport. Comment
  UC1585978  Amaranthus deflexus Barbara Ertter with Elizabeth Neese 1988-10-15 7973 Contra Costa w of I-580 (jct of Central Ave and Rydin Road, El Cerrito); El Cerrito Comment
  UCD97779  Amaranthus retroflexus J. D. Sauer 1953-8-14 1640 Contra Costa Near Marsh Creek Lodge. Comment
  CDA6723  Ambrosia trifida J. Clark, C. Beutler 1976-9-1 Contra Costa 2161 Youngs Court, Walnut Creek. 0 Comment
  SEINET238192 Image available Ampelodesmos mauritanicus Beecher Crampton 1966-10-18 7816 Contra Costa CULTIVATED ; Kensington Berkeley Hills Blake Garden UC Berkeley Dept. of landscape architecture. Comment
  CAS-BOT-BC222218  Amsinckia John Thomas Howell 1934-4-8 11812 Contra Costa 7 miles from Clayton on road to Livermore Comment
  CAS-BOT-BC222233  Amsinckia John Thomas Howell 1933-3-29 10908 Contra Costa Nortonville hills Comment
  CAS-BOT-BC222235  Amsinckia John Thomas Howell 1933-3-29 10912 Contra Costa Nortonville hills Comment
  JEPS17178  Amsinckia intermedia Francia Chisaki, Rimo Bacigalupi 1957-3-27 5759 Contra Costa 0.1 mi nw of crossing with Empire Avenue (along Neroly Road) 24 Comment
  SBBG39713  Amsinckia intermedia J. T. Howell 1933-5-14 11225 Contra Costa St Mary's College Comment
  SD126014  Amsinckia intermedia Alfred Sattler 1972-4-2 16 Contra Costa Concord, Southeast corner of Wilson Lane and West Street Comment
  SEINET12519155  Amsinckia intermedia Richard R. Halse 1988-1 3541 Contra Costa Along State Hwy. 4 near its junction with Balfour Road on the south edge of Brentwood 5 Comment
  UCD119619  Amsinckia intermedia John Thomas Howell 1933-5-14 11224 Contra Costa St. Mary's College. Comment
  CAS-BOT-BC222463  Amsinckia lunaris Robert F. Hoover 1939-5-20 4105 Contra Costa Lower end of San Pablo Reservoir Comment
  CAS-BOT-BC222465  Amsinckia lunaris Robert F. Hoover 1939-4-24 4058 Contra Costa Lower end of San Pablo Reservoir Comment
  JEPS20866  Amsinckia lunaris W. L. Jepson 1899-4-19 21083 Contra Costa Las Trampas Ridge Comment
  UC762105  Amsinckia lunaris R. F. Hoover 1939-5-20 4105 Contra Costa lower end of San Pablo Resevoir Comment
  SD71397  Amsinckia menziesii John Thomas Howell 1933-5-14 11224 A Contra Costa St. Mary's College Comment
  RSA0089987  Amsinckia retrorsa Lyman Benson 1935-3-16 6283 Contra Costa 3 miles S of Antioch. Mt. Range: Mt. Diablo; Watershed: Sacramento River. 152 Comment
  CAS-BOT-BC26953  Amsinckia scabra Alice Eastwood 1923-5-4 11731 Contra Costa Mt. Diablo Comment
  CDA9522  Amsinckia tessellata var. tessellata D. G. Kelch, Michael Park, Abigail Moore 2007-5-2 7 .252 Contra Costa Altamont Hills; Frontage Rd. S. of Patterson Pass Rd. & I-580 Comment
  UC161764  Amsinckia tessellata var. tessellata C. M. Belshaw 1936-5-9 2084 Contra Costa 1/2 mi n Nortonville 274 Comment
  CHSC75115  Anagallis arvensis Roger Thom 1987-5-26 21 Contra Costa 2800 block of Buena Vista Ave. Walnut Creek. 30 Comment
  UC1950199  Anagallis arvensis Barbara Ertter 1993-5-7 11717 Contra Costa Berkeley-Oakland Hills, horse trail southeast of Vollmer Peak east of Tilden Park stream trains 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
  UC691813  Ancistrocarphus filagineus Mary L. Bowerman 1932-4-9 1321 Contra Costa firebreak on large spur which heads into Sycsamore Canyon Inner Black Hills; Mount Diablo Comment
  UC2027713  Ancistrocarphus filagineus Barbara Ertter with Stu Garrett 1997-3-29 15526 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  JEPS12265  Anemopsis californica J. W. Blankinship 1913-6-16 Contra Costa Walwood, Ygnacio Valley Ygnacio Valley; Walwood, Ygnacio Valley Comment
  RSA0008239  Antirrhinum elmeri A. D. E. Elmer 1903-06 4809 Contra Costa Mount Diablo Comment
  UC2029063  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum Barbara Ertter 2000-7-29 17447 Contra Costa Donner Basin on north side of Mount Diablo, Cardinet Oaks Road at junction with Falls Trail. Comment
  UC2032826  Aphanes arvensis Doran, Andrew Scott 2012-3-20 696 Contra Costa Second highest point on Brooks Island below rocky outcrop Comment
  JEPS112070  Aphanes occidentalis A. G. Murdock 2004-3-5 212 Contra Costa Sky Ranch At top of ridge along road 250 Comment
  JEPS45617  Aphanes occidentalis W. L. Jepson 1931-4-5 15720 Contra Costa Nortonville 396 Comment
  SEINET3161272  Aphyllon comosum Unknown sn Contra Costa Antioch Comment
  UC2027940  Apiastrum angustifolium Barbara Ertter with Tony Morosco and other CNPS members 2001-5-6 17621 Contra Costa Northwest flank of Mount Diablo, trail on west face of Black Point. Comment
  UC2062629  Apiastrum angustifolium Barbara Ertter with Save Mount Diablo outing 2003-5-8 18164 Contra Costa Mangini property on knoll west of Mount Zion, NW corner of Mount Diablo. Comment
  UC692207  Aquilegia eximia Mary L. Bowerman 1933-6-2 2331 Contra Costa Donner Canyon Mount Diablo Comment
  JEPS112056  Aquilegia formosa A. G. Murdock 2004-4-30 254 Contra Costa Vaca Canyon On steep south slope along road 165 Comment
  UC692182  Aquilegia formosa Mary L. Bowerman 1938-6-14 3686 Contra Costa Juniper Camp Mount Diablo Comment
  CAS-BOT-BC392090  Aquilegia formosa Mary L. Bowerman 1931-5-19 870 Contra Costa Mount Diablo. Donner Canyon (Main, east branch) just above first fork Comment
  UCD95520  Aquilegia formosa Collector unknown Date unknown s.n. Contra Costa On ridge to west of Franklin Canyon (Central). 274 Comment
  UC691128  Arabis glabra Mary L. Bowerman 1932-5-6 1431 Contra Costa Mitchell Canyon Mount Diablo 251 Comment
  CHSC24747  Arbutus menziesii G. Strang 1976-4-17 14 Contra Costa Pinehurst road 3.5 mi NW of Canyon School on SE facing bank. 152 Comment
  JEPS77022  Arbutus menziesii Robert M. Lloyd 1963-3-17 2147 Contra Costa 1 mi s of Moraga (on road to Castro Valley) Comment
  OBI22876  Arbutus menziesii Cathy Peterson 1971-11-6 11 Contra Costa Mount Diablo, South side, approx. 45 yds from Rock City entrance 610 Comment
  CAS-BOT-BC407799  Arceuthobium campylopodum R. Bacigalupi 1922-9-24 81 Contra Costa Mitchell Canon, Mt. Diablo Comment
  UC1795671  Arceuthobium campylopodum Barbara Ertter, M. L. Bowerman, L. Schultheis, Kevin Hintsa 1995-10-22 14533 Contra Costa Three Springs Trail on northeast side of Mt. Diablo, woods above ranch. 365 Comment
  RSA21875  Arctostaphylos andersonii var. pallida Joseph A. Ewan 1934-1-7 8162 Contra Costa Head of San Leandro Creek above Oakland. Comment
  CAS-BOT-BC24105  Arctostaphylos auriculata Mary L. Bowerman 1933-3-25 1771 Contra Costa Emmons Canyon, Diablo Stock Farm (Stone Valley) Canyon: Comment
  CAS-BOT-BC24110  Arctostaphylos auriculata Rimo Bacigalupi 1924-2-17 s.n. Contra Costa Lower slopes of Mt. Diablo on old wagon road to summit from Mt. Diablo Country Club (Blue K Hills) 457 Comment
  CAS-BOT-BC24113  Arctostaphylos auriculata Brandegee 1889-1-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC24118  Arctostaphylos auriculata Alice Eastwood 1922-5-14 11311 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC27223  Arctostaphylos auriculata Alice Eastwood 1903-2-22 s.n. Contra Costa Mt. Diablo Comment
  RSA388864  Arctostaphylos auriculata H. A. Stout, TC Wainwright 1980-3-27 2 Contra Costa Mallory Ranch, ca. 1 mile east of Morgan Territory Road. 609 Comment
  UC83034  Arctostaphylos auriculata Katharine Brandegee 1889-1 Contra Costa Antioch Comment
  CAS-BOT-BC23594  Arctostaphylos crustacea J. E. Adams 1934-3-19 677 Contra Costa Rock City, Mount Diablo Comment
  CAS-BOT-BC23554  Arctostaphylos crustacea Neil Havlik; Walter Knight 1982-11-12 4550 Contra Costa Briones Regional Park adjacent to russell Tree Farm. 304 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-BC24859  Arctostaphylos glandulosa subsp. cushingiana Walter Knight; Irja Knight 1980-3-16 3716 Contra Costa Sobrante Ridge between Heavenly Ridge Lane and Castro Ranch Road, El Sobrante. Comment
  CAS-BOT-BC24860  Arctostaphylos glandulosa subsp. cushingiana Walter Knight; Irja Knight 1980-3-16 3716 Contra Costa Sobrante Ridge between Heavenly Ridge Lane and Castro Ranch Road, El Sobrante. Comment
  RSA367269  Arctostaphylos glandulosa subsp. glandulosa H. E. McMinn 1923-3-6 875 a Contra Costa Mt. Diablo. Comment
  UC1120336  Arctostaphylos glandulosa subsp. glandulosa R. C. Wilson 1935-2-26 105 Contra Costa 1 mi sw Nortonville; Mount Diablo Quadrangle Comment
  CAS-BOT-BC24653  Arctostaphylos glauca Mary L. Bowerman 1933-2-4 1691 Contra Costa Mount Diablo, Perkins Canyon, s. fork. Comment
  CAS-BOT-BC24658  Arctostaphylos glauca H. E. McMinn s.n. Contra Costa Mt Diablo, Curry Canyon. Comment
  POM367324  Arctostaphylos glauca Mark Morris 1929-03 14911 Contra Costa Mt. Diablo. Comment
  UC692232  Arctostaphylos glauca Mary L. Bowerman 1933-3-11 1748 Contra Costa in gully nw park entrance (outer s face of ridge); Mount Diablo, Rock City Ridge (=Fossil Ridge) Comment
  UC692235  Arctostaphylos glauca Mary L. Bowerman 1933-3-11 1749 Contra Costa in gully nw park entrance (outer s face of ridge); Mount Diablo, Rock City Ridge (Fossil Ridge) Comment
  RSA632813  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27589 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  RSA632817  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27586 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  RSA632825  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27584 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  RSA0002606  Arctostaphylos laevigata Alice Eastwood 1922-3-17 11082 Contra Costa Mt. Diablo Comment
  SEINET11977789  Arctostaphylos manzanita M. T. Doutt 1930-1 85 Contra Costa Marsh Creek Comment
  CAS-BOT-BC38878  Arctostaphylos manzanita subsp. laevigata Rimo Bacigalupi 1924-2-17 s.n. Contra Costa Lower slopes of Mt. Diablo on old wagon road to summit from Mt. Diablo Country Club (Black Hills) 457 Comment
  CAS-BOT-BC38923  Arctostaphylos manzanita subsp. laevigata Alice Eastwood 1922-5-14 11312 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
  UC549604  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-10-6 675 Contra Costa Mt. Diablo Comment
  UC549606  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-3-19 675 Contra Costa Mount Diablo Comment
  UC692220  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1932-9-5 1544 Contra Costa large spur on meridian which heads into Sycamore Canyon (crest of ridge); Mount Diablo Comment
  UC692517  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1931-3-1 539 Contra Costa e meridian (w part of chaparral); Mount Diablo, Inner Black Hills Comment
  UC909832  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-3-19 671 Contra Costa Mount Diablo Comment
  UCD51724  Arctostaphylos manzanita subsp. laevigata R. W. Lundh 1932-8-17 130 Contra Costa 1 mile East of Round Valley. 518 Comment
  UC2028052  Arctostaphylos manzanita subsp. laevigata Barbara Ertter with Ann Dennis 1998-1-25 15907 Contra Costa Donner Canyon on north side Mount Diablo, Middle Trail/Falls Trail. Comment
  CAS-BOT-BC24383  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1932-9-5 1545 Contra Costa Mount Diablo. On meridian, which heads into Sycamore canyon: crest of ridge. Comment
  CAS-BOT-BC24400  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1933-3-25 1765 Contra Costa Mt. Diablo. Diablo Stock Farm (Stone Valley) Canyon, w. fork: toward top of s. face. Also shrubs on n. face of Pine Comment
  POM300726  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1932-1-19 1074 Contra Costa Inner Black hills, at west end of chaparral: Just over crest of ridge on north-facing slope. Comment
  UCSB22193  Arctostaphylos obispoensis Jensen, H. 1938-10-27 Contra Costa Head of Sycamore Creek 518 Comment
  CDA29586  Arctostaphylos pallida D. G. Kelch, Suzanne Latham, Matt Beyers 2009-6-3 9 .334 Contra Costa East Bay.; El Sobrante Ridge at end of Silver Belt Dr. on Miocene chert outcrop. Comment
  UC909835  Arctostaphylos pallida Lewis S. Rose 1934-1-29 34010 Contra Costa summit of hills above Redwood Canyon (region of type); Oakland Hills Comment
Read comments
Aug 9 2011
  UC2070442  Arctostaphylos tomentosa Barbara Ertter with Kevin Hintsa et al. 2003-4-20 18160 Contra Costa Wall Point Road east of Emmons Canyon Road, west side of Mount Diablo. Comment
  JEPS42608  Arctostaphylos tomentosa subsp. crustacea W. L. Jepson 1944-8-5 27546 Contra Costa Moraga Ridge Oakland Hills Comment
  JEPS48824  Arctostaphylos tomentosa subsp. crustacea H. M. Wheeler 1944-1-16 27509 Contra Costa Moraga Ridge Oakland Hills Comment
  POM131600  Arctostaphylos tomentosa subsp. crustacea Jos Burtt Davy 1897-1 10651 Contra Costa Moraga Valley. Comment
  UC1120146  Arctostaphylos tomentosa subsp. crustacea C. M. Belshaw 1936-2-16 1589 Contra Costa 2 1/2 mi nw Lafayette; Concord Quadrangle, Lafayette Ridge Comment
  UC2042961  Arctostaphylos tomentosa subsp. crustacea Barbara Ertter with Chris Thayer, David Gowen, Kim Kersh 2007-2-11 18787 Contra Costa Flicker Ridge SE of Canyon, NW of junction Pinehurst and Canyon-Moraga roads. Comment
  UC549440  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1935-10-21 550 Contra Costa Moraga Ridge Comment
  UC549467  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 636 Contra Costa Moraga Ridge Comment
  UC692227  Arctostaphylos tomentosa subsp. crustacea Mary L. Bowerman 1931-3-1 543 Contra Costa e meridian (w part of chaparral); Mount Diablo, Inner Black Hills Comment
  UC692179  Argemone Mary L. Bowerman 1932-10-1 1603 Contra Costa Mount Diablo, Mitchell Canyon Mitchell Canyon; Mount Diablo, Mitchell Canyon Comment
  CAS-BOT-BC102185  Argyranthemum foeniculaceum William Lidicker 1967-4-13 s.n. Contra Costa Brooks Island, San Francisco Bay Comment
  JEPS81964  Argyranthemum foeniculaceum Rimo Bacigalupi and L. R. Heckard 1965-5-11 9070 Contra Costa on strand at n end Brooks Island (sw of Richmond, in San Francisco Bay); San Francisco Bay, n end of Brooks Island Comment
  JEPS111634  Aristolochia californica D. G. Kelch 2003-2-7 03 .34 Contra Costa McEwen Road 95 Comment
  CAS-BOT-BC17386  Armoracia rusticana Walter Knight; Joanne Dean 1978-8-14 3121 Contra Costa Browns Island. Comment
  CDA37337  Artemisia biennis D. G. Kelch 2010-10-31 10 .442 Contra Costa Valley north of Alhambra Valley Rd., south of Pinole Peak, east of Hercules. Comment
  JEPS111689  Artemisia californica D. G. Kelch 2004-3-5 04 .7 Contra Costa Martinez - Rankin Park 56 Comment
  JEPS36980  Artemisia californica W. L. Jepson 1898-10-18 Contra Costa Mount Diablo Comment
  UC2042495  Artemisia californica Barbara Keller and J. Ruck 2011-6-23 Contra Costa Mt. Diablo State Park, North Gate Rd. Comment
  UC691721  Artemisia douglasiana Mary L. Bowerman 1930-8-24 414 Contra Costa Mitchell Canyon Mount Diablo, Mitchell Canyon Comment
  UC543763  Asarum caudatum Herbert L. Mason 1925-9-27 2236 Contra Costa San Leandro Canyon (Redwood Canyon); Oakland Hills Comment
  JEPS47810  Asclepias californica Frank A. Leach 1918-12-1 Contra Costa hill 1 1/2 mi sw Upper Pine Canyon; Mt. Diablo Comment
  UC1123499  Asclepias californica C. M. Belshaw 1936-5-15 2131 Contra Costa 1/2 mi wsw Stewartsville; Mt. Diablo Quadrangle Comment
  CDA28791  Asclepias cordifolia D. G. Kelch, Troy MacGregor 2009-5-24 9 .302 Contra Costa Carquinez Strait; Carquinez Loop Trail S of Ozol, S-SW of Martinez, nr Wolcott Ln . Comment
  JEPS100125  Asclepias fascicularis A. Langston 2003-7-24 AL 69 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1123545  Asclepias fascicularis H. S. Yates 1934-9-2 4067 Contra Costa 1 mi sw Mt. Diablo; Mt. Diablo Quadrangle Comment
  RSA0029364  Asclepias fascicularis Barbara Ertter, Mary L. 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
  UCSB22010  Asclepias fascicularis Olson, Glen 1968-7-5 Contra Costa 0.1 mile off the end of Broadmore Court, 0.2 mile north of its junction with St. Mary's Rd. Comment
  UC1446048  Aspidotis californica Alan Smith with Ed Lee 1979-4-25 729 Contra Costa s side Mt Diablo Peak (along Devil's Elbow trail, less than 5 minutes from main rd, below Devil's Pulpit) 1066 Comment
  CAS-BOT-BC180571  Astragalus asymmetricus Mrs. E. C. Wright 1917-6-1 s.n. Contra Costa Mt. Diablo Comment
  UC13388  Astragalus asymmetricus F. T. Bioletti 1892-1 Contra Costa Byron Comment
  CAS-BOT-BC178471  Astragalus gambelianus H. L. Mason 1928-4-15 4345 Contra Costa East-facing grassy slope, Moraga Ridge Comment
  RSA29070  Astragalus gambelianus Lincoln Constance, Carl. W. Sharsmith 1940-4-27 2572 Contra Costa Pine Canyon, base of Mt Diablo 305 Comment
  UC1795758  Astragalus gambelianus Barbara Ertter, Mary Bowerman et al. 1995-5-7 14061 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, small serpentine patch at road junction Comment
  CAS-BOT-BC17453  Athysanus pusillus M. K. Curran 1883-4-1 s.n. Contra Costa Antioch. Comment
  CAS-BOT-BC17458  Athysanus pusillus Carl Meyer 1928-2-22 291 Contra Costa Mount Diablo. 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
  POM181083  Atriplex coronata J. T. Howell 1930-9-28 5503 Contra Costa 5.4 miles from Byron on Marsh Creek Road. Comment
  UC221400  Atriplex coronata H. M. Hall 1923-10-10 11911 Contra Costa on Stockton Road e Byron; e of Byron Comment
  SEINET4133821  Atriplex fruticulosa Howard C. Stutz, G. L. Chu 1991-4-12 95463 Contra Costa 2 mi. S of Byron, E side of road in 'native' pasture.; 0 Comment
  RSA603504  Atriplex joaquinana Carol W. Witham 1994-8-7 588 Contra Costa East of Bixler Road between Marsh Creek road and Point of Timber Road 3 Comment
  CDA23285  Atriplex lentiformis subsp. breweri F. T. Swett 1960-9-23 Contra Costa Hill Girt Farm, Alhambra Valley, Martinez. 0 Comment
  UC2042867  Atriplex prostrata Barbara Ertter, B. Olson, D. Lake, L. Hosley and A. Youngson 1991-10-20 10871 Contra Costa Dow Wetland Preserve, just W of Antioch. Comment
  UCD158700  Atriplex prostrata James A. Neilson Jr. 1972-10-22 3509 a Contra Costa Walnut Creek drainage. Elevation estimated in Google Earth by label maker. 0 Comment
  CDA2931  Atriplex semibaccata D. G. Kelch 2006-9-25 6 .477 Contra Costa Carquinez Strait; Marsh 1km. W of Pacheco Slough. Comment
  JEPS111801  Atriplex semibaccata D. G. Kelch 2004-7-9 04 .300 Contra Costa Port Costa - Shore Past Costa Shore 2 Comment
  JEPS111808  Atriplex triangularis D. G. Kelch 2003-8-13 03 .95 Contra Costa Martinez Marsh 1 Comment
  SEINET12765208  Atriplex triangularis Barbara Ertter, B. Olson; L. L. Lake; Lynne Hosley 1991-10-20 10871 Contra Costa Just W of Antioch marina; along levee at water's edge, accessed from marina.; 0 Comment
  JEPS75537  Avena barbata P. F. Yorks 1976-4-28 144 Contra Costa on Hampton Rd 1.3 to 1.9 km s Bear Creek Road (n of Briones Reservoir); Hamton Road Natural Reserve Comment
  UC697189  Avena barbata Mary L. Bowerman 1933-5-8 2002 Contra Costa Fossil Ridge Mount Diablo (s face, not far from but out of sight of South Gate) 289 Comment
  CDA1747  Avena fatua G. D. Barbe 1983-5-22 4081 Contra Costa Mount Diablo State Park, along fire road north of Juniper Campground. Comment
  JEPS84882  Avena fatua G. D. Barbe 1983-5-22 4081 Contra Costa hillside along fire road n. of Juniper Campground; Mount Diablo State Park 877 Comment
  JEPS84887  Avena fatua G. D. Barbe 1983-5-22 4081 Contra Costa hillside along fire road n. of Juniper Campground; Mount Diablo State Park 877 Comment
  UC53686  Avena fatua J. Burtt Davy 1900-5-24 6537 Contra Costa Pt. Richmond Comment
  SEINET5607235 Image available Avena fatua Rachel Van Noord 1998-1 12 Contra Costa Dinosaur Hill Park, Pleasant Hill Comment
  CAS-BOT-BC98614  Baccharis pilularis John Thomas Howell; Gordon H. True 1972-6-29 48926 Contra Costa Near Byron Hot Springs (site) Comment
  JEPS12786  Balsamorhiza deltoidea Rimo Bacigalupi with G. T. Robbins 1955-5-4 4978 Contra Costa along road to Irish Canyon (s of and above Nortonville) 426 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
  UC691249  Barbarea orthoceras Mary L. Bowerman 1933-4-9 1841 Contra Costa Donner Canyon, west fork: By trail. Comment
  UC691258  Barbarea orthoceras Mary L. Bowerman 1933-4-22 1899 Contra Costa w of Cave Point (s-face); Mount Diablo, Inner Black Hills Comment
  CDA28899  Bellardia trixago D. G. Kelch, Troy MacGregor 2009-5-24 9 .3 Contra Costa Carquinez Strait; Carquinez Loop Trail S of Ozol, S-SW of Martinez, nr Wolcott Ln . Comment
  CDA39043  Bellardia trixago D. G. Kelch 2011-6-5 11 .571 Contra Costa Carquinez Strait; South of Crockett, south of Cummings Skyway. Comment
  JEPS15610  Bellardia trixago R. Bacigalupi and G. Thomas Robbins 1955-5-4 4973 Contra Costa E edge, field along treat Lane Concord; Clayton Valley 60 Comment
  SEINET13390640  Bellardia trixago C. C. Hall 1911-5-20 8835 Contra Costa Near Concord. 100 Comment
  CHSC23354  Bellis perennis Willis Ball 1975-2-23 441 Contra Costa Contra Loma Regional Park. In area #1. Ca. 40 yds W of restroom facility on the S end of the lake. 30 Comment
  UC1076434  Berberis pinnata Herbert L. Mason 1925-3-10 1298 Contra Costa Sycamore Canyon; Mt Diablo Comment
  CAS-BOT-BC75786  Berberis pinnata H. E. McMinn 1923-3-17 897 Contra Costa Sycamore Canyon - 2 miles from Black Hawk Ranch - left canyon. Comment
  CAS-BOT-BC102086  Bidens frondosa Walter Knight; Joanne Dean 1978-8-14 3157 Contra Costa Browns Island Comment
  CAS-BOT-BC102034  Bidens laevis James McMurphy 1908-10-18 s.n. Contra Costa Antioch Comment
  UC1618402  Bidens laevis Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10873 Contra Costa just w. Antioch marina (Dow Wetlands Preserve, e. end of marsh across from marina); Dow Wetlands Preserve Comment
  CAS-BOT-BC102032  Bidens laevis Walter Knight; Irja Knight; J. T. Howell; E. McClintock; et al. 1978-9-5 3242 Contra Costa Browns Island. Yucca Landing Comment
  JEPS68966  Blennosperma nanum Edward Lee 1935-3-10 1299 Contra Costa Nortonville South watershed of Kirker Creek Comment
  UC579840  Blennosperma nanum var. nanum Annetta Carter 1937-3-7 1223 Contra Costa one mile e Danville; Sycamore Valley Comment
  UC2070516  Blennosperma nanum var. nanum Barbara Ertter with Steve Matson 2003-3-15 18108 Contra Costa Black Diamond Mines Regional Preserve, Black Diamond Trail in SW corner of park. Comment
  CAS-BOT-BC127914  Blepharizonia laxa R. F. Hoover 1937-9-2 2710 Contra Costa 1 mi. s. of Pittsburg Comment
  CAS-BOT-BC127916  Blepharizonia laxa Mrs. Curran s.n. Contra Costa Antioch Comment
  JEPS18824  Blepharizonia plumosa R. F. Hoover 1935-9-7 715 Contra Costa Walnut Creek Comment
  UC194218  Blepharizonia plumosa H. M. Hall 1916-8-17 Contra Costa Los Medanos, Suisun Bay, San Francisco Bay Region San Francisco Bay Region, Suisun Bay, Los Medanos Comment
  UC762569  Blepharizonia plumosa R. F. Hoover 1937-8-31 2704 Contra Costa Pittsburg Comment
  RSA0008357  Blepharizonia plumosa Barbara Ertter, Brad Olson, Dianne Lake, Seth Adams, et al. 1994-9-11 13080 Contra Costa Chaparral Springs addition to Mt. Diablo State Park, north side of Marsh Creek Road at high point southeast of Clayton. Comment
  LA204391  Boechera breweri E. W. Hicks; 1917-3-24 111 Contra Costa Mt. Diablo 1067.0 Comment
  UCSB2218  Boechera breweri Kamb, Peter; Chisaki, Francia 1950-3-18 Contra Costa Saddle between North and South Peaks of Mount Diablo 883 Comment
  CAS-BOT-BC15966  Boechera breweri subsp. breweri A. D. E. Elmer 1903-6-1 5096 Contra Costa Mount Diablo. Comment
  UC691071  Boechera breweri subsp. breweri Mary L. Bowerman 1933-4-26 1929 Contra Costa between the ridge to the s and North Peak main e ridge (Perkins Canyon branch); Mount Diablo, Perkins Canyon 518 Comment
  UC691073  Boechera breweri subsp. breweri Mary L. Bowerman 1932-3-27 1142 Contra Costa Mitchell Rock Mount Diablo Comment
  UC855337  Boechera breweri subsp. breweri Mrs. S. G. Suttiffe 1920-5-30 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC15962  Boechera breweri subsp. breweri John Thomas Howell 1926-3-7 1671 Contra Costa Mount Diablo. Comment
  UC2028066  Boechera breweri subsp. breweri Barbara Ertter, Tony Morosco 1998-4-12 16008 Contra Costa Mount Olympia on north side of Mount Diablo, below false summit on East Trail. Comment
  RSA102247  Boisduvalia cleistogama M. K. Curran 1886-05 s.n. Contra Costa Near Antioch. Comment
  POM32378  Boisduvalia glabella Katherine Brandegee 1905-6-16 s.n. Contra Costa Antioch Comment
  POM300655  Boisduvalia glabella Mary L. Bowerman 1935-6-28 3173 Contra Costa Mount Diablo: Vernal pool near meridian (300 yards east of meridian fence line) south of summit 488 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
  CAS-BOT-BC31391  Bolboschoenus robustus J. W. Congdon 1893-7-29 s.n. Contra Costa Martinez Comment
  JEPS16063  Bowlesia incana W. L. Jepson 1923-4-22 9867 a Contra Costa Mount Diablo Comment
  UC32474  Bowlesia incana Chesnut and Drew 1889-4-17 Contra Costa Clayton Comment
  UC1126847  Brassica nigra R. W. Lundh 1932-7-13 126 Contra Costa 1 mi e of Chaparral Springs (Mount Diablo Quadrangle); Mount Diablo Quadrangle 457 Comment
  UC407037  Brassica rapa Ira L. Wiggins 1930-4-18 4609 Contra Costa Jersey Island Comment
  CAS-BOT-BC36723  Brassica rapa R. E. Frenkel 1963-8-22 273 Contra Costa On the lot in front of Market Plaza Center on Highway 21, Alamo. 79 Comment
  UC1818971  Brickellia californica Barbara Ertter, M. L. Bowerman, L. Schultheis, Kevin Hintsa 1995-10-22 14534 Contra Costa Three Springs Trail on northeast side of Mt. Diablo, woods above ranch. 365 Comment
  CHSC116650  Briza minor Lowell Ahart; Josephine Guardino 2016-4-19 20789 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant .Below the high water line of Los Vaqueros Reservoir, 1.4 miles northwest of Los Vaqueros Reservoir Marina, 1,9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  JEPS127232  Briza minor Lowell Ahart, Josephine Guardino 2016-4-19 20789 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
  UC1618319  Brodiaea elegans subsp. elegans Barbara Ertter 1990-5-19 8995 Contra Costa n Lafayette (edge of ridge road); Briones Regional Park, Lafayette Ridge 365 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
  CAS-BOT-BC484265  Brodiaea elegans subsp. elegans J. Bauer 1851-11-1 s.n Contra Costa Mt. Diablo (handwriting inlegible) Comment
  CAS-BOT-BC149351  Bromus berteroanus Edward Lee 1936-4-19 1970 Contra Costa San Francisco Bay. Red Rock. Northeast corner of the island. Comment
  UC1948971  Bromus carinatus William J. Ferlatte, L. Maynard Moe 1970-4-27 1237 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC606747  Bromus carinatus var. carinatus Edward Lee 1936-4-19 1975 Contra Costa San Francisco Bay, Red Rock Red Rock; San Francisco Bay, Red Rock Comment
  UC677607  Bromus carinatus var. carinatus A. A. Beetle 1942-3-22 2931 Contra Costa near Richmond (San Francisco Bay, Brooks Island); San Francisco Bay, Brooks Island Comment
  UC692337  Bromus carinatus var. carinatus Mary L. Bowerman 1935-5-22 3038 Contra Costa w of Twin Peaks (Mount Diablo, Eagle Point Ridge); Mount Diablo, Eagle Point Ridge 304 Comment
  UC697129  Bromus carinatus var. carinatus Mary L. Bowerman 1935-5-1 2947 Contra Costa West Road 6.7 mi from entrance, Mount Diablo West Road; Mount Diablo, West Road 640 Comment
  CAS-BOT-BC149543  Bromus carinatus var. carinatus David C. Rentz 1968-4-29 5 Contra Costa Between homes near Oak View Avenue on Ocean View Avenue. Kensington. Comment
  JEPS75533  Bromus diandrus P. F. Yorks 1974-4-28 1452 Contra Costa on Hampton road 1.7 km s of Bear Creek Road (n of Briones Reservoir, in Hampton Road Natural Reserve); Hampton Road Natural Reserve Comment
  POM300671  Bromus diandrus Mary L. Bowerman 1935-4-26 2921 Contra Costa Mount Diablo. 1159 Comment
  POM301029  Bromus diandrus Mary L. Bowerman 1935-5-1 2942 Contra Costa Mount Diablo. West road 4.4 miles from entrance. 396 Comment
  RSA762302  Bromus diandrus William J. Ferlatte, L. M. Moe 1970-4-27 1238 Contra Costa San Francisco Bay, Red Rock Island. Comment
  UC697134  Bromus hordeaceus Mary L. Bowerman 1931-4-4 644 Contra Costa Mount Diablo, West Raod, about 1 mi from entrance Mount Diablo; , West Raod Comment
  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
  SEINET3246736  Bromus hordeaceus Horace P. Miller 1986-1 9 -690 Contra Costa Lafayette Comment
  CAS-BOT-BC162453  Bromus laevipes Mary L. Bowerman 1935-5-22 3045 Contra Costa Mount Diablo. Eagel Point ridge, canyon at north end which heads into saddle west of Twin Peaks. 350 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
  UC691210  Bromus madritensis subsp. madritensis Mary L. Bowerman 1933-5-9 2051 Contra Costa Mount Diablo, Stage Road Canyon Stage Road Canyon; Mount Diablo, Stage Road Canyon 731 Comment
  UC677559  Bromus madritensis subsp. rubens A. A. Beetle 1942-3-22 2930 Contra Costa Taber Island, small Island off north west side of Brooks Island, San Francisco Bay, Contra Costa County. Comment
  HSC9309  Bromus madritensis subsp. rubens Greg Bos 1963-4-10 74 Contra Costa El Cerrito Hills, E end 76 Comment
  CDA29488  Bromus pseudolaevipes D. G. Kelch, Troy MacGregor 2009-5-1 9 .276 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  SEINET5607271 Image available Bromus rigidus Rachel Van Noord 1998-1 6 Contra Costa Dinosaur Hill Park, Pleasant Hill Comment
  UCD59584  Bromus rubens P. B. Kennedy 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  CDA31607  Bromus stamineus D. G. Kelch, A. G. Murdock 2005-6-27 5 .395 Contra Costa Carquinez Strait; 6th Street at Lillian Street, Crockett. Comment
  UC1795743  Bromus sterilis Barbara Ertter, Mary Bowerman et al. 1995-5-7 14053 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, open oak forest above houses. Comment
  UC1050752  Calceolaria integrifolia N. Floy Bracelin 1942-6-28 2166 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UCD84952  California macrophylla Chuck Hughes 2010-3-31 224 Contra Costa About 0.3 mile north of Vasco Road. 357 Comment
  JEPS111765  Callitriche marginata D. G. Kelch 2005-3-11 05 .34-B Contra Costa Mt. Wanda - Martinez Mt. Wanda. Fire road climbing North side of mountain 90 Comment
  JEPS61610  Calochortus albus F. Hein 1931-4-14 Contra Costa St. Mary's College Comment
  UC768643  Calochortus albus R. F. Hoover 1939-4-26 4067 Contra Costa Head of Markley Canyon (w branch) Markley Canyon Comment
  SEINET8495447 Image available Calochortus albus Susan Keefer 1969-5-2 33 Contra Costa 1.5 miles from Alamo, east base of Las Trampas Ridge, 5 miles west of Mt. Diablo. Comment
  UC2028252  Calochortus argillosus Barbara Ertter, Mary Bowerman, Lisa Schultheis 1998-8-21 16395 Contra Costa Southwest base of Mount Diablo, South Gate Road 0.7 miles from park boundary. Comment
  UC2028294  Calochortus argillosus Barbara Ertter, Dan Norris 1998-6-18 16219 Contra Costa west of Rock City area on south side of Mount Diablo, saddle on W Fossil Ridge Trail. Comment
  CAS-BOT-BC132491  Calochortus pulchellus Mrs. T. A. McGlynn 1925-6-14 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC132504  Calochortus pulchellus Alice Eastwood 1923-5-4 11728 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC132506  Calochortus pulchellus John Thomas Howell 1940-4-21 15397 Contra Costa Pine Canyon, Mt. Diablo Comment
  HSC93902  Calochortus pulchellus C. Newberry 1994-4-30 7250 Contra Costa Mt. Diablo State Park, trail from Mitchell Canyon Parking to Donner Creek 900 Comment
  RSA215950  Calochortus pulchellus D. E. Breedlove 1970-4-18 17425 Contra Costa At the north edge of Lafayette above Laurel Drive 244 Comment
  SBBG33410  Calochortus pulchellus A. D. E. Elmer -Jun-1903 4631 Contra Costa Mount Diablo Comment
  UC1300909  Calochortus pulchellus Helen K. Sharsmith 1962-5-20 5069 Contra Costa Morgan Territory Road, ne slopes of Mount Diablo San Francisco Bay Region, Mount Diablo 365 Comment
  UC3461  Calochortus pulchellus W. H. Brewer 1862-5-7 1063 Contra Costa n slope Mount Diablo Comment
  UC691993  Calochortus pulchellus Mary L. Bowerman 1930-6-5 242 Contra Costa 5.8 mi from entrance (= North Gate) (West road (=North Rd)); Mount Diablo 457 Comment
  CAS-BOT-BC132534  Calochortus umbellatus John Thomas Howell 1933-5-14 11261 Contra Costa Hills east of St. Mary's College Comment
  UC691991  Calochortus umbellatus Mary L. Bowerman 1933-5-22 2170 Contra Costa e of Knobcone Point (on n-face); Mount Diablo, Inner Black Hills Comment
  CAS-BOT-BC132536  Calochortus umbellatus Rudolf Schmid 1997-4-8 1997 -2 Contra Costa Hillside Natural Area, El Cerrito; sw. of Kent Dr.-Regency Ct. entrance, n. side of junction of the two main fire roads 145 Comment
  CAS-BOT-BC494048  Calochortus venustus L. R. Abrams 1921-5-25 8054 Contra Costa Near Spring 4 1/2 mi from summit mt Diablo Comment
  UC2028988  Calochortus venustus Barbara Ertter 2000-5-14 17007 Contra Costa Donner Canyon on north side of Mount Diablo, SW end of Falls Trail between Middle Trail and Donner Creek crossing. Comment
  UCD95580  Caltha palustris E. Dean; with Thomas Starbuck 1993-5-1 359 Contra Costa Oakland hills, canyon E of Skyline Blvd., growing in stream that separates Huckleberry Preserve from Sibley Volcano Park, along Skyline Trail, near old homestead site. Comment
  UC697175  Calycadenia truncata Mary L. Bowerman 1936-9-1 3536 Contra Costa between North Peak and the mouth of Perkins Canyon North Peak; Mount Diablo 487 Comment
  UC2027942  Calycadenia truncata Barbara Ertter 1997-9-7 15799 Contra Costa North side Mount Diablo, Falls Trail in Donner Canyon. Comment
  UC2029105  Calycadenia truncata Barbara Ertter 2000-7-29 17441 Contra Costa Donner Basin on north side of Mount Diablo, ca halfway up Middle Trail. Comment
  UC691543  Calycadenia truncata Mary L. Bowerman 1933-8-26 2412 Contra Costa w of Lower Pine Spring; Mount Diablo Comment
  CAS-BOT-BC436385  Calystegia Alice Eastwood 1915-5-30 4441 Contra Costa Mt. Diablo Comment
  UC23188  Calystegia malacophylla subsp. pedicellata Edw. L. Greene 1892-6-25 Contra Costa Mt. Diablo Comment
  UC2028302  Calystegia malacophylla subsp. pedicellata Barbara Ertter, Susan D'Alcamo 1998-6-12 16189 Contra Costa North Peak Trail south of Prospectors Gap on east side of Mount Diablo summit. Comment
  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
  CAS-BOT-BC199277  Calystegia sepium subsp. limnophila Malcom A. Nobs; S. Galen Smith 1949-7-8 941 Contra Costa Otto's Black Bass Resort, 4 miles north of Kingston Comment
  CAS-BOT-BC224745  Calystegia sepium subsp. limnophila R. K. Brummitt; B. Ertter 1998-5-6 19792 Contra Costa Antioch. Sea level Comment
  CDA39892  Calystegia sepium subsp. limnophila A. G. Murdock 2004-6-4 321 Contra Costa Carquinez Strait Region; Pecheco Marsh. Comment
  CDA39895  Calystegia sepium subsp. limnophila T. C. Fuller 1964-11-6 12807 Contra Costa Northeast side of Bethel Island. 0 Comment
  UC198869  Camissonia campestris subsp. campestris Chesnut and Drew 1887-4-18 Contra Costa Antioch Comment
  RSA41303  Camissonia micrantha Robert F. Hoover 1935-3-10 314 Contra Costa Antioch sand-dunes Comment
  RSA186560  Camissonia micrantha Peter H. Raven 1963-3-29 18143 Contra Costa About 1 mile south of Oakley on State Highway 4 at junction of Brownstone Road Comment
  UC1784899  Camissoniopsis hirtella Barbara Ertter with Thomas J. Delendick 1996-5-2 14609 Contra Costa Mount Diablo, lower summit parking lot 1127 Comment
  UC691593  Campanula exigua Mary L. Bowerman 1930-6-10 309 Contra Costa Meridian Peak Summit Mount Diablo Comment
  CAS-BOT-BC37395  Cardamine californica Robert Francis Hoover 1938-2-21 2754 Contra Costa Point Richmond. Comment
  SBBG29852  Cardamine californica A. Carter, H. Sharsmith 1940-3-17 1498 Contra Costa near Stege Railroad Stn, 2 mi SE of Richmond 7 Comment
  UC1126899  Cardamine californica R. C. Wilson 1935-3-19 142 Contra Costa 1 mi se Wall Pt.; Mt. Diablo Quad. Comment
  UC762890  Cardamine californica R. F. Hoover 1938-2-21 2751 Contra Costa Marsh Creek Comment
  UC10326  Cardamine californica var. integrifolia W. H. Brewer 1862-5-1 1039 Contra Costa Walnut Creek Comment
  POM264460  Cardamine californica var. integrifolia Annetta Carter, H. K. Sharsmith 1940-3-17 1498 Contra Costa Near Stege railroad station 2 miles SE of Richmond. 8 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
  CDA40559  Cardaria chalepensis V. Guise & B. Slate 2014-4-8 PDR# 070 P06223870 Contra Costa Concord; west side of Crystal Ranch Road, 100 yards south of Ygnacio Valley Road, City of Concord property. 0 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
  SEINET8734726 Image available Carduus pycnocephalus Laura Zeller 1965-1 83 Contra Costa just E of the University of California Botanical Garden 91 Comment
  CDA9484  Carduus tenuiflorus D. G. Kelch, Abigail Moore, Michael Park 2007-5-1 7 .209 Contra Costa Byron Airport. Comment
  JEPS97625  Carduus tenuiflorus Annetta M. Carter, Florence Dickson 1939-5-28 1437 Contra Costa El Cerrito. 7 Comment
  UC1795637  Carex barbarae Barbara Ertter, Gary Schoolcraft 1996-4-7 14579 Contra Costa Molate Beach Park on San Francisco Bay north of San Rafael Bridge; old railroad bed where blocked by french-broom, low spot where water gathers. 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
  UC691963  Carex densa Mary L. Bowerman 1938-5-28 3646 Contra Costa South Road, by spring, paralleling streamlet Mount Diablo 640 Comment
  CDA31160  Carex globosa D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .227 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  UC2028235  Carex globosa Barbara Ertter, Tony Morosco 1998-9-18 16439 Contra Costa Lime Ridge Open Space northwest of Mount Diablo. Comment
  UC2070640  Carex nudata Barbara Ertter 2002-8-24 18033 Contra Costa Lower Perking Canyon on NE base of Mount Diablo. Comment
  CAS-BOT-BC119017  Carex pellita Walter Knight; B. Mortensen; J. Dean; R. Bensler; B. Atwater 1979-6-13 3364 Contra Costa Damp area in center of Browns Island. Comment
  UC691961  Carex pellita Mary L. Bowerman 1935-5-16 3000 Contra Costa Russelman Park Road at Gregory Ranch junction; Mount Diablo 289 Comment
  JEPS22098  Carex praegracilis G. Thomas Robbins 1958-7-19 3908 Contra Costa at the edge of a small lagoon about 3/4 mi s Pt. San Pablo; San Francisco Bay, Richmond, Potrero San Pablo, Pt. Orient Comment
  CAS-BOT-BC117552  Carex serratodens Miss Mary Leolin Bowerman 1938-5-28 3640 Contra Costa Patens Spring (North Road, 1800 feet). 548 Comment
  SEINET7575209 Image available Carex serratodens Lewis S. Rose 1935-5-16 35163 Contra Costa Mt. Diablo. Comment
  UC2028573  Carex serratodens Barbara Ertter with Stu Garrett 1997-3-29 15537 Contra Costa West side Mount Diablo, spring at north junction of Mothers Trail and Burma Road. Comment
  UC593503  Carex subbracteata G. L. Stebbins Jr. 1936-5-9 1555 Contra Costa e side Wildcat Canyon; Berkeley Hills Comment
  UC2028500  Carex subbracteata Barbara Ertter 1999-3-21 16491 Contra Costa NW corner of Miller Knox Regional Shoreline, Protero Hills SW of Richmond Comment
  UC26493  Castilleja affinis subsp. affinis Jos. Burtt Davy 1901-4-21 6924 Contra Costa Wildcat Canyon Comment
  UC400170  Castilleja affinis subsp. affinis Ynes Mexia 1929-4-21 2384 Contra Costa Moraga Valley Comment
  UC64217  Castilleja affinis subsp. affinis H. M. Hall 1900-3-23 Contra Costa San Pablo Creek; San Francisco Bay Region Comment
  UC765541  Castilleja affinis subsp. affinis R. F. Hoover 1938-5-4 3346 Contra Costa peak e of Tassajero Creek Comment
  JEPS100151  Castilleja attenuata G. Smick 2003-4-8 GAS 125 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC691576  Castilleja attenuata Mary L. Bowerman 1933-5-11 2084 Contra Costa w end Inner Black Hills; Mount Diablo Comment
  UC691580  Castilleja attenuata Mary L. Bowerman 1932-4-9 1333 Contra Costa from near Rock City ridge to Wall Point; Mount Diablo Comment
  HSC20894  Castilleja densiflora Greg Bos 1963-4-28 95 Contra Costa Pinole hills overlooking San Pablo Bay 46 Comment
  CDA41324  Castilleja exserta subsp. exserta D. G. Kelch 2004-5-7 4 .187 Contra Costa Carquinez Strait; Canada del Cierbo. Comment
  CDA41326  Castilleja exserta subsp. exserta D. G. Kelch 2005-4-24 5 .162 Contra Costa Carquinez Strait Region; Franklin Canyon. Collier Hill. West Carbon. Comment
  JEPS100149  Castilleja exserta subsp. exserta G. Smick 2003-3-25 GAS 78 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC27243  Castilleja exserta subsp. exserta H. P. Chandler 1900-3-24 Contra Costa Briones Hills; Mount Diablo Region Comment
  UC673456  Castilleja exserta subsp. exserta H. L. Mason 1928-3-4 4168 Contra Costa Shell Ridge Comment
  SEINET5543151  Castilleja parviflora H. S. Gentry 1931-1 51 Contra Costa Collected near Buckle Point, Mount Diablo. Comment
  UC691574  Castilleja rubicundula subsp. lithospermoides Mary L. Bowerman 1933-5-11 2081 Contra Costa ridge towards w end Inner Black Hills (on s side); Mount Diablo Comment
  CAS-BOT-BC41015  Caulanthus flavescens Mary L. Bowerman 1935-4-22 2879 Contra Costa Mount Diablo. North Road 2 miles from North Gate, just west of chaparral. 213 Comment
  CHSC57361  Caulanthus lasiophyllus Willis Ball 1975-3-2 451 Contra Costa Contra Loma Regional Park, in are #2. On s side of hill ca. 400 yds w of boat ramp at w side of lake. 60 Comment
  CAS-BOT-BC48831  Ceanothus cuneatus W. W. Carruth 1902-3-1 s.n. Contra Costa Pine Ridge Moraga Valley Comment
  UCD111751  Ceanothus cuneatus P. B. Kennedy 1916-5-31 s.n. Contra Costa between Diablo and summit. Comment
  JEPS42089  Ceanothus cuneatus var. cuneatus W. L. Jepson 1923-3-11 9847 Contra Costa Black Hills Mt. Diablo Comment
  JEPS48720  Ceanothus cuneatus var. cuneatus W. L. Jepson 1945-3-11 27553 Contra Costa Moraga Ridge Comment
  CAS-BOT-BC51494  Ceanothus oliganthus var. sorediatus C. H. M. 1919-8-24 s.n. Contra Costa Las Trampas Peak Comment
  JEPS42198  Ceanothus oliganthus var. sorediatus W. L. Jepson 1916-7-16 6814 Contra Costa Oakland hills Comment
  UC762255  Ceanothus oliganthus var. sorediatus R. F. Hoover 1941-4-12 4843 Contra Costa w branch of San Pablo Creek Comment
  CHSC69650  Ceanothus ramulosus James D. Jokerst; Lori May, Dave Magney 1989-4-6 3082 Contra Costa Parcel 10 (Ladd's Parcel) in watershed. Comment
  UCD129962  Centaurea benedicta Collector Unknown Date Unknown s.n. Contra Costa Southwest of Kelseyville. Comment
  JEPS99959  Centaurea calcitrapa A. Langston 2003-7-28 AL 76 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2028009  Centaurea calcitrapa Barbara Ertter with Amy Rusev 1998-1-17 15894 Contra Costa Lime Ridge Open Space at NW foot of Mount Diablo. Comment
  UC1795799  Centaurea melitensis Barbara Ertter, Mary L. Bowerman 1994-6-19 12844 Contra Costa Mt. Diablo State Park east of Walnut Creek; Muir Picnic Area on Summit Road, 1005 Comment
  UC691364  Centaurea melitensis Mary L. Bowerman 1930-6-3 237 Contra Costa 1.9 mi from entrance West Road (= North Road); Mount Diablo Comment
  CAS-BOT-BC277052  Centaurea melitensis Alice Eastwood 1921-4-11 10239 Contra Costa Antioch Comment
  RSA666408  Centaurea repens Bob Case 2001-10-2 s.n. Contra Costa Southeast Pleasant Hill, East Bay Municipal Utilities District right-of-way on West Hookston Road Comment
  CHSC23349  Centaurea solstitialis Willis Ball 1975-5-20 530 Contra Costa Contra Loma Regional Park. In area #10 ca. 300 yds e of dam. 33 Comment
  JEPS99521  Centaurea solstitialis Mary L. Bowerman 1995-6-4 Contra Costa Mount Diablo. North Gate Road. Comment
  UC691371  Centaurea solstitialis Mary L. Bowerman 1938-10-10 3725 Contra Costa 3 mi below junction South Road; Mount Diablo 624 Comment
  CAS-BOT-BC284463  Centaurea solstitialis Chester Dudley 1931-7-1 s.n. Contra Costa Walnut Creek Comment
  CAS-BOT-BC284465  Centaurea solstitialis E. M. Zeile 1921-10-1 41 Contra Costa Rodeo Comment
  UC2027958  Centaurea solstitialis Barbara Ertter with Joanne Kerbavaz 2000-8-20 17495 Contra Costa South side Mount Diablo, ca halfway up South Gate Road. Comment
  UC2028266  Centaurium davyi Barbara Ertter 1999-6-12 16714 Contra Costa West Branch Alamo Creek on south flank of Mount Diablo, along unofficial path running from north spur of Black Hawk Ridge Road to south spur off of Knob Cone Point Road (near powerline). Comment
  UC1178020  Centaurium muehlenbergii Herbert L. Mason 1955-7-14 14637 Contra Costa 0.5 mi e Antioch Bridge Comment
  UC1606360  Centaurium muehlenbergii Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, and Amy Hiss 1991-8-18 10700 Contra Costa n of Pittsburg (near confluence of Sacramento River and San Joaquin River, opposite Pittsburg Marind, flat in the center of w end of Browns Island); Browns Island Comment
  UC691834  Centaurium muehlenbergii Mary L. Bowerman 1930-9-27 463 Contra Costa 2.25 mi by road from Mount Diablo north entrance (west base spring, take trail trough to w, follow to fence and go through); Mount Diablo Comment
  CDA35655  Centaurium tenuiflorum Vince Guise 2011-7-8 PDR# 1649686 Contra Costa San Ramon; 100 feet north of north end of Claremont Crest Way. 0 Comment
  CDA35663  Centaurium tenuiflorum Vince Guise 2011-8-2 PDR# 1649695 Contra Costa San Ramon; 100 feet north of north end of Claremont Crest Way. 0 Comment
  UC1050885  Centranthus ruber N. Floy Bracelin 1942-5-17 1287 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California 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
  JEPS35031  Centromadia fitchii W. L. Jepson 1895-9-14 Contra Costa Walnut Creek Comment
  CAS-BOT-BC288548  Centromadia fitchii Mary L. Bowerman 1936-9-17 3548 Contra Costa Mount Diablo. North Rd 2.5 miles from North Gate: at roadside, slightly lower down, extending down the bank into grassland 243 Comment
  UC2028246  Centromadia fitchii Barbara Ertter, Tony Morosco 1998-9-18 16416 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, Valley Vista Road entrance. Comment
  JEPS95217  Centromadia parryi subsp. congdonii R. E. Preston 1998-10-9 1180 Contra Costa Collier Canyon and adjacent valleys, in valley bottom, lower slopes, and saddles. 228 Comment
  UC1357605  Centromadia parryi subsp. congdonii R. F. Hoover 1966-8-31 9943 Contra Costa e Danville Comment
  UCD14671  Centromadia pungens Mick Canaveri 1997-4-1 s.n. Contra Costa near Brentwood. Comment
  CAS-BOT-BC279204  Centromadia pungens subsp. pungens David D. Keck 1933-11-2 2613 Contra Costa 3 mi. S. of Martinez on road to Pacheco Comment
  CAS-BOT-BC279202  Centromadia pungens subsp. pungens Volney Rattan 1886-6-15 s.n. Contra Costa Pacheco Valley Comment
  UC1039525  Cephalanthus occidentalis var. californicus H. L. Mason 1929-9-21 5447 Contra Costa 1 mi from Borden Highway junction with road to Antioch Comment
  UC1594163  Cephalanthus occidentalis var. californicus Jerry Powell 1991-6-11 1607 Contra Costa Antioch National Wildlife Refuge Comment
  UC2028161  Cerastium glomeratum Barbara Ertter 1998-4-4 15947 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, SE of Indian Valley School. Comment
  CAS-BOT-BC137008  Cercocarpus betuloides var. betuloides L. R. Abrams 1910-10-8 4355 Contra Costa Mt. Diablo Summit 1158 Comment
  CAS-BOT-BC284218  Chaenactis glabriuscula var. megacephala M. K. C. 1886-5-1 26 Contra Costa Antioch Comment
  CDA23076  Chamaesyce maculata D. G. Kelch, D. A. Weinstein 2008-5-5 8 .093 Contra Costa Carquinez Strait; Richmond. W Chevy s Hill. N parking lot of Hilltop Mall. Comment
  CDA35253  Chamaesyce ocellata H. R. VanBrocklin 1958-8-6 1000 Contra Costa County Road, about half-way up north side of Mt. Diablo. 0 Comment
  UC692713  Chamaesyce ocellata Mary L. Bowerman 1930-10-19 494 Contra Costa little below rd junction West rd Comment
  UC2028248  Chamaesyce ocellata subsp. ocellata Barbara Ertter, Mary Bowerman, Lisa Schultheis 1998-8-21 16402 Contra Costa North Gate Road on west side of Mount Diablo, 1 mile below Junction. Comment
  JEPS111947  Chamaesyce serpens A. G. Murdock 2004-5-28 306 -B Contra Costa Luzon 60 Comment
  UC2031491  Cheilanthes Barbara Ertter with David Gowen 2014-4-12 21718 Contra Costa On north side of Prospectors Gap Road ca 1 mile east of Mount Diablo summit, burnt in previous year's fire Comment
  CAS-BOT-BC66352  Cheilanthes covillei John Thomas Howell 1955-3-6 30146 Contra Costa on south side of South Peak, Mt. Diablo Comment
  UC691935  Chenopodium californicum Mary L. Bowerman 1931-3-7 546 Contra Costa Sheep Corral Spring Mount Diablo Comment
  UC7298  Chenopodium californicum State Survey 1065 Contra Costa Comment
Read comments
Aug 16 2013
  JEPS111799  Chenopodium murale D. G. Kelch 2005-3-13 05 .46 Contra Costa Crockett - weedy area under Zampa Bridge 4 Comment
  JEPS100056  Chlorogalum pomeridianum A. Langston 2003-6-12 AL 42 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS75512  Chlorogalum pomeridianum var. pomeridianum P. F. Yorks 1975-6-29 460 Contra Costa n. Briones Reservoir (ca. 1.5 km. s. of Bear Creek Rd. on Hampton Rd. in Hampton Rd. Natural Reserve); Hampton Rd. Natural Reserve 200 Comment
  CAS-BOT-BC252680  Chorizanthe membranacea Mary L. Bowerman 1938-5-28 3636 Contra Costa North Road 4.7 miles from North Gate, Mount Diablo 411 Comment
  JEPS57664  Chorizanthe membranacea W. L. Jepson May 23 1891-May 24 1891 Contra Costa Mount Diablo Comment
  UC77552  Chorizanthe membranacea Brandegee April, 1889 Contra Costa Mount Diablo Comment
  UC188732  Chorizanthe uniaristata M. K. Curran 1884-1 Contra Costa near Mount Diablo; near Mount Diablo Comment
  JEPS38085  Chrysolepis chrysophylla var. minor H. M. Wheeler 1943-8-15 27500 Contra Costa Moraga Ridge Comment
  UCD110102  Chrysolepis chrysophylla var. minor J. M. Tucker 1941-9-26 408 Contra Costa Summit of Moraga Ridge. Comment
  UC72145  Cicendia quadrangularis Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  UC20920  Cicuta maculata var. bolanderi Jos. Burtt Davy 1900-6-7 6668 Contra Costa near Martinez Comment
  UCD127262  Cicuta maculata var. bolanderi Walter Knight; Irja Knight et al. 1978-9-5 3244 Contra Costa Browns Island. Comment
  CAS-BOT-BC277974  Cirsium cymosum John Thomas Howell 1942-7-19 17039 Contra Costa Near Rock City, Mt. Diablo Comment
  CAS-BOT-BC277976  Cirsium cymosum John Thomas Howell 1931-5-12 6478 Contra Costa North side of Mt. Diablo Comment
  UC691388  Cirsium douglasii var. douglasii Mary L. Bowerman 1933-8-2 2396 Contra Costa Maple Spring (by west road) Mount Diablo Comment
  CDA33850  Cirsium occidentale D. G. Kelch 2010-5-15 10 .127 Contra Costa Mt. Diablo. Trail from Juniper Camp to Deer Flat. 0 Comment
  OBI73069  Cirsium occidentale David J. Keil, with Barbara Ertter et al. 2000-6-18 28816 Contra Costa Mount Diablo State Park. Fire interpretive trail around Mt. Diablo summit. 1128 Comment
  OBI63081  Cirsium occidentale var. californicum R. K. Brummitt, J. Strother, & B. Baldwin, B. Baldwin 1997-5-27 19612 Contra Costa Mt Diablo, W side, near Juniper camp ground 800 Comment
  UC30830  Cirsium occidentale var. venustum W. G. Klee Contra Costa Comment
  CAS-BOT-BC285728  Cirsium vulgare Walter Knight 1978-8-27 3194 Contra Costa Contra Loma Regional Park 30 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
  JEPS111563  Clarkia affinis A. G. Murdock 2004-5-28 273 Contra Costa Pinole Peak 405 Comment
  POM181148  Clarkia affinis J. T. Howell 1931-5-12 6483 Contra Costa Mt. Diablo. Comment
  UC1795728  Clarkia affinis Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14224 Contra Costa Mt. Diablo southeast of Walnut Creek, north-facing slope north of Curry Point, grassy semishade at edge of oak woodland. 518 Comment
  JEPS43663  Clarkia biloba W. L. Jepson 1918-6-3 7585 Contra Costa Donner Canyon Mt. Diablo Comment
  JEPS99586  Clarkia biloba Mary Bowerman 1995-7-2 Contra Costa Mount Diablo, foot trail between Back Canyon and Donner Canyon. In Donner side of ridge. Comment
  UC169380  Clarkia biloba Katharine Brandegee June 1905 Contra Costa Port Costa Comment
  UC373498  Clarkia biloba C. L. Hitchcock 1928-6-5 13 Contra Costa 1 1/2 mi from Port Costa (between Port Costa and Martinez) 40 Comment
  JEPS111566  Clarkia biloba subsp. biloba D. G. Kelch 2003-8-13 03 .124 Contra Costa Vaca Canyon Locally common herb to 20 cm on n facing road cuts 165 Comment
  LA45413  Clarkia concinna Joseph Andorfer Ewan; 1934-5-20 8932 Contra Costa Mt. Diablo, Russelmann Park Comment
  CAS-BOT-BC172037  Clarkia gracilis subsp. gracilis Mary L. Bowerman 1942-5-24 3840 Contra Costa Jim White Trail to Deer Flat, Mount Diablo 853 Comment
  RSA60760  Clarkia purpurea subsp. purpurea Edward L. Greene 1889-05 s.n. Contra Costa Martinez Comment
  POM257244  Clarkia purpurea subsp. purpurea H. L. Mason 1928-4-26 4379 Contra Costa Around Berkeley and Oakland. Comment
  JEPS23503  Clarkia purpurea subsp. quadrivulnera Edward Lee Greene 1886-5-25 Contra Costa Mt. 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
  POM249884  Clarkia rubicunda Joseph A. Ewan 1936-7-5 9744 Contra Costa Virginia Canyon, Berkeley Hills Comment
  CHSC27728  Clarkia unguiculata Coleta Lawler 1978-6-23 296 Contra Costa West of Concord on Alhambra Valley Road, 0.7 miles east of Bear Creek Road; roadcut. Comment
  CAS-BOT-BC165453  Clarkia unguiculata John Thomas Howell 1931-5-12 6481 Contra Costa North side of Mt. Diablo Comment
  UCSC005354  Clarkia unguiculata Randall Morgan 2004-5-19 4129 Contra Costa Richmond, From Annie's Annuals Comment
  CDA33794  Claytonia exigua D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .111 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  JEPS48618  Claytonia exigua subsp. exigua Elsa Kraeger 1926-3-7 Contra Costa w side Mt. Diablo Comment
  JEPS68968  Claytonia exigua subsp. exigua Edward Lee 1935-3-10 1302 Contra Costa Nortonville , Kirker Creek (s watershed Kirker Creek) Comment
  UC692549  Claytonia exigua subsp. exigua Mary L. Bowerman 1935-4-22 2893 Contra Costa ridge w Pioneer Road, Mount Diablo (w of Stage Road); Mount Diablo 822 Comment
  CAS-BOT-BC439168  Claytonia exigua subsp. exigua John Thomas Howell 1926-3-7 1678 Contra Costa Mitchell Canon [Canyon], Mt. Diablo Comment
  UC2028068  Claytonia exigua subsp. exigua Barbara Ertter, Tony Morosco 1998-4-12 16006 Contra Costa Mount Olympia on north side of Mount Diablo, below false summit on East Trail. Comment
  JEPS107017  Claytonia gypsophiloides J. Greenhouse with Kevin Hintsa 2004-4-5 5083 Contra Costa Mt. Diablo, Fire Interpretive Trail 1109 Comment
  UC83787  Claytonia gypsophiloides C. F. Baker 1903-4-28 2817 Contra Costa Mitchell's Canyon; Mt. Diablo Comment
  CAS-BOT-BC439332  Claytonia gypsophiloides W. H. Brewer 1862-5-7 1056 Contra Costa Monte [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
  UC1745429  Claytonia parviflora subsp. parviflora Annetta M. Carter, Leo Bowerman 1935-6-1 869 Contra Costa Mt. Diablo. Main ridge running W from peak. 975 Comment
  UC1745431  Claytonia parviflora subsp. parviflora Annetta M. Carter, Leo Bowerman 1935-6-1 872 Contra Costa Mt. Diablo. N-facing slope of main ridge running W from peak. 975 Comment
  UC2062631  Claytonia parviflora subsp. parviflora Barbara Ertter with David Gowen, Mike Park 2004-4-13 18353 Contra Costa Black Diamond Mines Regional Park south of Pittsburg, S of Somersville townsite, Chaparral Loop Trail just across footbridge from Manhattan Trail cut-off. 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
  RSA117676  Claytonia perfoliata S. S. Tillett, I. Sternback 1956-6-23 523 Contra Costa Contra Costa County: Grapevine picnic point, Mt. diablo State Park Comment
  CAS-BOT-BC443683  Claytonia perfoliata subsp. perfoliata Walter Knight 1965-3-1 904 Contra Costa Antioch dunes Comment
  JEPS99970  Claytonia perfoliata subsp. perfoliata S. O'Neil 2003-2-18 SEO 5 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC615386  Claytonia perfoliata subsp. perfoliata Beryl O. Schreiber 1932-2-28 32 Contra Costa near Concord Comment
  CAS-BOT-BC91359  Clematis lasiantha H. E. McMinn 1922-6-2 134 Contra Costa Mount Diablo. Comment
  CAS-BOT-BC91360  Clematis lasiantha Alice Eastwood 1915-5-30 4460 Contra Costa Mount Diablo. Comment
  POM151217  Clematis lasiantha C. F. Baker 1903-4-28 2946 Contra Costa Mitchell's canon, Mt. Diablo. Comment
  RSA135362  Clematis lasiantha Volney Rattan 1883-04 s.n. Contra Costa Martinez. Comment
Read comments
Jul 18 2011
  UC545776  Clematis lasiantha Annetta M. Carter 1935-6-1 874 Contra Costa n.w. slope of main peak Mt. Diablo 1005 Comment
  UC545780  Clematis lasiantha Annetta M. Carter 1935-6-1 873 Contra Costa n.w. slope of main peak Mt. Diablo 975 Comment
  UC692085  Clematis lasiantha Mary L. Bowerman 1930-6-7 272 Contra Costa summit Mt. Diablo Comment
  CAS-BOT-BC92548  Clematis ligusticifolia Paul F. Covel 1938-6-26 1516 Contra Costa Las Trampas Canyon (behind Saint Mary's). Comment
  SEINET5547635  Clematis ligusticifolia H. S. Gentry 1931-1 57 Contra Costa Collected near Buckle Point, Mount Diablo. Comment
  JEPS100147  Collinsia heterophylla G. Smick 2003-4-3 GAS 118 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS108351  Collinsia sparsiflora David Gowen 2005-3-31 220 Contra Costa Sibley Regional Preserve. East facing slope just east of Park boundary near dirt road that heads southeast. Comment
  UC672467  Collinsia sparsiflora var. collina H. L. Mason 1925-3-10 1295 Contra Costa Mount Diablo. Comment
  JEPS21079  Collinsia sparsiflora var. collina Joe Zaerr 1958-4-12 71 Contra Costa Along Marsh Creek, Morgan Territory Road (NE slopes of Mt. Diablo) 243 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
  UC1196815  Collinsia sparsiflora var. sparsiflora J. P. Tracy 1900-3-24 627 Contra Costa near Point Richmond; Region about San Francisco Bay 3 Comment
  UC26651  Collinsia sparsiflora var. sparsiflora Harley P. Chandler 1901-3-21 852 A Contra Costa Martinez Comment
  UC691624  Collinsia tinctoria Mary L. Bowerman 1935-6-1 3117 Contra Costa summit Mount Diablo Mount Diablo, summit (towards Devils Pulpit) 1158 Comment
  UCD118040  Collomia diversifolia Ann F. Johnson 1978-5-13 s.n. Contra Costa From Deerflat to Meridian ridge, on Mt. Diablo. Comment
  CHSC75080  Convolvulus arvensis Roger Thom 1987-5-13 8 Contra Costa Calif. State University Hayward's Contra Costa Campus. 3100 Oak Park Blvd. Pleasant Hill. 30 Comment
  UCD126197  Convolvulus arvensis Henry House 1995-5-20 1995- 18 a Contra Costa East Contra Costa County: ca. 100 meters west of Walnut Blvd., ca. 1.25 km south of Marsh Creek Road. 10 Comment
  UCD58755  Convolvulus simulans Glen Holstein 2007-5-1 s.n. Contra Costa Near entrance to Roddy Ranch Golf Course at southeast edge of Antioch. There is a large stock pond about 100 m NW of the entrance. The collection was in disked pasture 100 m west of the pond. Comment
  UC2027981  Conyza bonariensis Barbara Ertter, Chris Thayer 1996-10-25 15390 Contra Costa Southwest flank of Mount Diablo, lower South Gate Road just inside park boundary. Comment
  UC2027882  Conyza canadensis Barbara Ertter, Chris Thayer 1996-10-25 15370 Contra Costa Northwest flank of Mount Diablo, east end Northgate Trail from North Gate Road to Diablo Foothills Regional Park. Comment
  UC2028015  Conyza canadensis Barbara Ertter 1997-9-14 15820 Contra Costa Southwest side of Mount Diablo, Wall Point Road on open sandstone ridge northwest of Wall Point. Comment
  JEPS74986  Cordylanthus nidularius T. I. and F. M. Chuang 1975-6-29 7517 Contra Costa NE of Deer Flat; Mt. Diablo Comment
  UC691481  Cordylanthus pilosus subsp. pilosus Mary L. Bowerman 1936-8-8 3523 Contra Costa Emmons Canyon (Diablo Stock Farm [Wattis Ranch] Canyon, W fork Mount Diablo Comment
  UC691507  Cordylanthus pilosus subsp. pilosus Mary L. Bowerman 1936-8-8 3523 Contra Costa Emmons Canyon, W fork Mount Diablo Comment
  UC1795844  Cordylanthus pilosus subsp. pilosus Barbara Ertter, M. L. Bowerman, L. Schultheis, Kevin Hintsa 1995-10-22 14537 Contra Costa Three Springs Trail on northeast side of Mt. Diablo, in woods above ranch, north-facing slope. Comment
  UC692510  Cornus glabrata Mary L. Bowerman 1935-3-16 2735 Contra Costa e. fork Arroyo del Cerro Mt. Diablo; , e. fork Arroyo del Cerro 262 Comment
  CAS-BOT-BC209589  Cornus sericea H. E. McMinn 1922-5-30 34 Contra Costa By Pinehurst Resort in Large Redwood Canyon Comment
  UC1622291  Cotoneaster lacteus Barbara Ertter 1997-1-5 15432 Contra Costa at Lime Ridge between Walnut Creek and Clayton (Ygnacio Valley Road); Lime Ridge, Ygnacio Valley Road Comment
  UC691659  Cotula coronopifolia Mary L. Bowerman 1931-3-29 624 Contra Costa n side of Cave Point (head of canyon); Mount Diablo; hollow on east side of Cave-Windy ridge Comment
  UC692662  Crassula aquatica Mary L. Bowerman 1931-4-4 663 Contra Costa pool w. of Turtle Rock; Mt. Diablo Comment
  JEPS111821  Crassula connata A. G. Murdock 2004-3-19 218 Contra Costa Luzon Sycamore Ave. just east of Rodeo/Hercules where train crosses Highway 4 60 Comment
  UC692558  Crassula connata var. subsimplex Mary L. Bowerman 1932-2-28 1093 Contra Costa ridge e. of Rhine Canyon (grassy flat near saddle, Mt. Diablo); Mt. Diablo 579 Comment
  SD241801  Crassula tillaea Barbara Ertter, Gary Schoolcraft 1996-4-7 14578 Contra Costa Molate Beach Park on San Francisco Bay north of San Rafael Bridge; bare edge of lawn-covered bluff. Comment
  UC2029040  Crassula tillaea Barbara Ertter 2000-3-30 16900 Contra Costa North base of Mount Diablo, Mitchell Canyon trailhead. Comment
  JEPS22096  Cressa truxillensis G. Thomas Robbins 1958-7-19 3907 Contra Costa ca. 3/4 mi. s. Point San Pablo (Potrero San Pablo, Richmond); San Francisco Bay Comment
  UC1607510  Cressa truxillensis Barbara Ertter with CNPS members 1992-1-19 10895 Contra Costa n.w. corner Concord Naval Weapons Station (Hastings Slough); Hastings Slough Comment
  UC70200  Cressa truxillensis J. Burtt Davy May 1898 Contra Costa region of Mt. Diablo, Danville Comment
  RSA289534  Croton californicus Edward Lee, Annetta Carter 1935-8-17 1626 Contra Costa Antioch. Comment
  UC765094  Croton californicus R. F. Hoover 1937-5-14 2113 Contra Costa Antioch sand-dunes Comment
  HSC81264  Croton californicus E. E. Stanford 1930-5-30 1533 Contra Costa Near Knightsen Comment
  RSA0033934  Crypsis schoenoides Barbara Ertter, Chris Thayer 1996-10-25 15360 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park. 91 Comment
  RSA720790  Crypsis schoenoides Barbara Ertter, Mary L. Bowerman, Lisa Schultheis, Kevin Hintsa 1995-10-22 14532 Contra Costa Three Spring Trail on northeast side of Mt. Diablo, south of crest of Marsh Creek Rd. Comment
  SEINET4343820 Image available Crypsis vaginiflora Unknown 1989-9-30 8865 Contra Costa Tilden Regional Park E of El Cerrito, East Bay Skyline Nat'l Recreation Trail (= Nimitz Way), small dried pond ca 1 1/4 mi NW of Inspiration Point. Comment
  UC2028311  Cryptantha decipiens Barbara Ertter, Susan D'Alcamo 1998-6-12 16165 Contra Costa North Peak Trail from Devil's Elbow on SE side of Mount Diablo summit. Comment
  UC691396  Cryptantha flaccida Mary L. Bowerman 1931-4-4 659 Contra Costa 4.5 mi from West road (= North Rd) entrance; Mount Diablo 396 Comment
  UC691401  Cryptantha flaccida Mary L. Bowerman 1932-4-16 1348 a Contra Costa Eagle Point Mount Diablo Comment
  UC79420  Cryptantha micromeres Katharine Brandegee May 1889 Contra Costa Antioch Comment
  UC2028057  Cryptantha muricata Barbara Ertter, Tony Morosco 1998-4-12 16017 Contra Costa Mount Olympia on north side of Mount Diablo, around rocks at summit. Comment
  JEPS67634  Cryptantha nevadensis Mary L. Bowerman 1932-3-27 1143 Contra Costa at base of Mitchell Rock Mount Diablo, Mitchell Rock Comment
  JEPS108393  Cryptantha nevadensis David Gowen 2005-4-3 222 Contra Costa Mt. Diablo State Park. Next canyon east of Rhine Canyon and lower down than the trail from Devil's Elbow. Comment
  JEPS67770  Cryptantha nevadensis R. F. Hoover 1938-5-4 3348 Contra Costa e of Tassajero Creek 762 Comment
  UC691394  Cryptantha nevadensis var. rigida Mary L. Bowerman 1932-3-27 1143 Contra Costa At base of Mitchell Rock 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
  UC691344  Cryptantha torreyana Mary L. Bowerman 1933-6-3 2245 Contra Costa on area that was burned in 1931. Exposure north Comment
  SD43450  Cuscuta californica var. californica Philip A. Munz 1937-10-8 12200 Contra Costa Near Antioch 7 Comment
  CDA21191  Cuscuta japonica R. Fonseca 2006-12-12 PDR 1373709 Contra Costa San Francisco Bay Area; 654 Marlesta Rd, Pinole. Sheet 1 of 2. 0 Comment
Read comments
Apr 29 2013
  CDA33504  Cuscuta japonica R. Fonseca 2008-10-27 PDR# 1455391 Contra Costa Rodeo; 2 California St. 0 Comment
  UC691854  Cuscuta subinclusa Mary L. Bowerman 1935-6-1 3118 Contra Costa n side Meridian Peak summit (below house); Mount Diablo 1158 Comment
  UC691907  Cuscuta subinclusa Mary L. Bowerman 1933-9-9 2428 Contra Costa e of Frog Pond; Mount Diablo, Rhine Canyon 457 Comment
  CDA23080  Cyclospermum leptophyllum D. G. Kelch, D. A. Weinstein 2008-5-5 8 .09 Contra Costa Carquinez Strait; Richmond. W Chevy s Hill. N parking lot of Hilltop Mall. Comment
  UCD144310  Cynara cardunculus G. F. Hrusa; D. Crowe 1998-5-8 14357 Contra Costa Sacramento-San Joaquin River Delta. Dow Chemical property at Pittsburg. 5 Comment
  CAS-BOT-BC190225  Cynodon dactylon Walter Knight 1978-8-27 3187 Contra Costa Contra Loma Regional Park near Antioch. 30 Comment
  CDA34471  Cynoglossum grande D. G. Kelch 2006-2-25 6 .083 Contra Costa Carquinez Strait; Crockett. Edwards Canyon. Comment
  UC1063875  Cynoglossum grande R. W. Lundh 1933-3-14 213 Contra Costa 3 1/2 mi. n. Lafayette (Canada del Hambre); Concord Quad., Canada del Hambre 152 Comment
  CDA28981  Cynosurus echinatus D. G. Kelch, Suzanne Latham, Matt Beyers 2009-6-3 09 .330-B Contra Costa East Bay.; El Sobrante Ridge at end of Silver Belt Dr. on Miocene chert outcrop. Comment
  JEPS100020  Cynosurus echinatus S. O'Neil 2003-5-30 SEO 36 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  SEINET5546123  Cynosurus echinatus E. A. Bernays 1985-1 s.n. Contra Costa Tilden. Comment
  CDA9292  Cyperus difformis D. G. Kelch 2006-9-15 6 .474 Contra Costa Carquinez Strait; Shell Ave., Martinez. Between Pine St. and Harborview Dr. Comment
  SD175778  Cyperus difformis D. G. Kelch 2006-9-15 06 474 Contra Costa Shell Ave., Martinez, between Pine St. and Harborview Dr. 56 Comment
  SEINET3840900  Cyperus difformis Unknown 2006-9-15 6 .474 Contra Costa Martinez, Shell Avenue, between Pine Street and Harborview Drive 60 Comment
  JEPS111890  Cyperus eragrostis D. G. Kelch 2004-5-7 04 .192 Contra Costa Ca ada del Cierbo Ca ada del Cierbo 40 Comment
  UC1606358  Cyperus eragrostis Barbara Ertter, Brad Olson 1991-9-28 10848 Contra Costa s. end San Pablo Reservoir (between Orinda and El Sobrante) 97 Comment
  SEINET3909446  Cyperus eragrostis K. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4982 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough. SE portion of Bethel Slough.; 0 610 Comment
  UC2013054  Cyperus eragrostis Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14919 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. 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
  RSA605653  Cyperus niger var. capitatus L. C. Wheeler 1952-10-2 7000 Contra Costa Mount Diablo: ca. 0.8 mile up from Turtle Ranch, ca. 1 mile downhill from divide in road. Comment
  CAS-BOT-BC113937  Cyperus odoratus Walter Knight; Irja Knight 1980-8-26 3769 Contra Costa Hercules. Comment
  UC1446057  Cystopteris fragilis Alan Smith with Ed Lee 1979-4-25 732 Contra Costa trail beyond Devil's Elbow toward saddle between Mt Diablo and North Peak; n side Mt. Diablo 1066 Comment
  RSA666380  Cytisus monspessulanus Barbara J. Ertter 1991-5-12 9816 Contra Costa Point Isabel Regional Shoreline in SW corner of El Cerrito, on San Francisco Bay. Comment
  UCD32433  Deinandra corymbosa Beecher Crampton 1950-6-20 596 Contra Costa Contra Costa County, 1 mile north of Richmond, Triangle Court. Comment
  CAS-BOT-BC294018  Deinandra kelloggii Mrs. Curran 1883-5-1 s.n. Contra Costa Antioch Comment
  UC88925  Deinandra kelloggii K. Brandegee 1889-5-1 Contra Costa Antioch Comment
  UC88930  Deinandra kelloggii unknown 1883-7-1 Contra Costa Antioch Comment
  UC990569  Deinandra kelloggii James I. McMurphy 1909-5-21 Contra Costa Antioch Comment
  CAS-BOT-BC291808  Deinandra lobbii H. M. Hall 1930-6-18 12792 Contra Costa Somerville [Somersville], hills south of Pittsburg Comment
  SEINET9288997  Delairea odorata Unknown 1999-12-20 1219291 Contra Costa Along Wildcat Canyon Rd., 1.9 mi NW of intersection of Wildcat Canyon Rd and Dam Rd. vicinity of Orinda. Comment
  UCD95639  Delphinium californicum P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  CAS-BOT-BC9612  Delphinium californicum John Thomas Howell 1950-7-5 26631 Contra Costa Juniper Camp, Mt. Diablo Comment
  UC1795684  Delphinium californicum subsp. interius Barbara Ertter, Mary L. Bowerman 1994-6-19 12841 Contra Costa Mt. Diablo State Park east of Walnut Creek; Muir Picnic Area on Summit Road, 1005 Comment
  SEINET12087146  Delphinium decorum J. T. Howell 1931-1 5758 Contra Costa Shaley slope in chaparral, 7 mi E of Clayton, Mt. Diablo region Comment
  UC906518  Delphinium decorum subsp. tracyi P. B. Kennedy 1916-5-21 Contra Costa between Diablo and summit of Mt. Diablo Comment
Read comments
Jun 4 2007
  JEPS105716  Delphinium hansenii subsp. hansenii David Gowen 2004-5-1 55 Contra Costa Black Diamond Mines Regional Preserve. North-facing slopes above Lower Oil Canyon road. Comment
  UCD84955  Delphinium hesperium Chuck Hughes 2010-5-19 227 Contra Costa About 0.5 mile south of Vasco Road. 184 Comment
  POM225347  Delphinium hesperium J. T. Howell 1931-5-12 6482 Contra Costa N side of Mt Diablo Comment
  JEPS120270  Delphinium hesperium subsp. hesperium Barbara Ertter with David Gowen 2012-6-9 21022 Contra Costa at junction of Seaview Trail and road into EBMUD land north of Vollmer Peak, southeastern Tilden Park in Berkeley Hills Comment
  UC2028329  Delphinium hesperium subsp. hesperium Barbara Ertter with Richard K. Brummitt 1998-5-13 16137 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, head of SE branch of Loughler Loop Trail. Comment
  UC2028975  Delphinium hesperium subsp. hesperium Barbara Ertter with Kevin Hintsa 2000-5-16 17024 Contra Costa Rock City area on SSW side of Mount Diablo, East Fossil Ridge Trail. Comment
  CAS-BOT-BC10010  Delphinium hesperium subsp. pallescens E. Wright 1917-6-1 S. N. Contra Costa Mt. Diablo Comment
  UC13984  Delphinium hesperium subsp. pallescens Chesnut and Drew 1889-4-17 Contra Costa Antioch Comment
  CAS-BOT-BC10013  Delphinium hesperium subsp. pallescens John Thomas Howell 1931-5-12 6482 Contra Costa North Side of Mt. Diablo Comment
  LA38170  Delphinium hesperium subsp. pallescens Lewis; Mehlquist 446 Contra Costa S of Antioch, 5.4 mi. N of Marsh Creek rd Comment
  UC9183  Delphinium hesperium subsp. pallescens W. H. Brewer 1862-5-29 1185 Contra Costa near Camp 71; Marsh's Ranch Comment
  CAS-BOT-BC10150  Delphinium nudicaule L. R. Abrams 1921-5-25 8037 Contra Costa Summit of Mount Diablo Comment
  RSA398660  Delphinium nudicaule John Doyen, Glenn A. Gorelick 1966-4-22 s.n. Contra Costa Russelman Park, Mt. Diablo State Park. 305 Comment
  UC136343  Delphinium parryi subsp. parryi M. K. Curran May 1886 Contra Costa near Antioch Comment
  CAS-BOT-BC116454  Delphinium patens subsp. patens H. L. Mason 1928-4-29 4440 Contra Costa Sycamore Canyon, south slope of Mount Diablo Comment
  CAS-BOT-BC116456  Delphinium patens subsp. patens J. T. Howell 1933-5-14 11279 Contra Costa Hills east of St. Mary's College Comment
  UC9157  Delphinium patens subsp. patens Harley P. Chandler 1901-4-5 974 Contra Costa Mount Diablo Comment
  UC2027926  Delphinium patens subsp. patens Barbara Ertter with Linda Vorobik 2001-3-24 17571 Contra Costa Lime Ridge Open Space east of Walnut Creek, eastern edge overlooking Crystal Springs subdivision. Comment
  JEPS65179  Delphinium recurvatum L. R. Heckard 1971-4-15 2488 Contra Costa railroad embankment at intersection of Holey Rd; s of Byron Comment
  LA207575  Delphinium variegatum H. Lewis; Carl Epling 1944-5-6 sn Contra Costa 1 mi. S of Marsh Creek Rd. on the Beck Rd. to Livermore Comment
  RSA149117  Delphinium variegatum Harlan Lewis, C. Epling 1946-5-5 607 Contra Costa Corral Hollow Road S of Livermore Comment
  UCSB11260  Delphinium variegatum Hayes, Judy 1961-3-30 Contra Costa South Gate of Mount Diablo State Park 182 Comment
  CAS-BOT-BC16940  Delphinium variegatum subsp. variegatum Alice Eastwood 1914-3-14 3790 Contra Costa Byron Springs Comment
  UC1050504  Dendromecon rigida N. Floy Bracelin 1941-4-27 1222 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1024732  Deschampsia danthonioides Leo Whitney 1935-4-21 3057 Contra Costa 4 mi. e. Corral Hollow Comment
  CAS-BOT-BC192674  Deschampsia danthonioides Bolander 6072 Contra Costa Unspecified Comment
  CAS-BOT-BC192676  Deschampsia danthonioides Mary L. Bowerman 1935-6-28 3164 Contra Costa Chase Pond 548 Comment
  JEPS97566  Deschampsia elongata R. D. Stone 1980-7-13 273 Contra Costa Huckleberry Trail Oakland Hills, near Alameda-Contra Costa county line (NE of intersection of Skyline Blvd. and Snake Rd.) 396 Comment
  CAS-BOT-BC43126  Descurainia pinnata subsp. brachycarpa Volney Rattan 1879-1-1 s.n. Contra Costa Antioch. Comment
  JEPS9557  Dicentra chrysantha W. L. Jepson 1921-11-19 9518 Contra Costa Mt. Diablo Comment
  UC9939  Dicentra formosa Chas. Palache Mar 1891 Contra Costa Moraga Canyon Comment
  UC400148  Dichelostemma capitatum Ynes Mexia 1929-4-21 2385 Contra Costa Moraga Valley Comment
  UC765943  Dichelostemma capitatum R. F. Hoover 1938-2-21 2756 Contra Costa Point Richmond Comment
  POM276989  Dichelostemma capitatum subsp. capitatum Lyman Benson 1931-3-18 2665 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 Comment
  RSA0031305  Dichelostemma congestum Barbara Ertter 2000-5-14 17006 Contra Costa Donner Canyon on north side of Mount Diablo, SW end of Falls Trail between Middle Trail and Donner Creek crossing. 457 Comment
  UC1300935  Dichelostemma congestum Helen K. Sharsmith 1962-5-20 5071 Contra Costa ne slope Mount Diablo (Headwaters of Marsh Creek); San Francisco Bay Region, , Marsh Creek 304 Comment
  UC692030  Dichelostemma congestum Mary L. Bowerman 1935-5-1 2943 Contra Costa 4.4 mi from West road (= North Rd.) entrance; Mount Diablo 396 Comment
  JEPS121009  Digitaria sanguinalis D. G. Kelch 2006-9-6 06 .469 Contra Costa Elkhorn Creek, E of Crockett Comment
  CAS-BOT-BC150327  Diplacus aurantiacus L. R. Abrams 1916-6-30 5704 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC151950  Diplacus douglasii John Thomas Howell 1941-4-6 16177 Contra Costa Near Deer Flat, Mt. Diablo Comment
  CAS-BOT-BC121843  Dirca occidentalis Frank Walton Gould 1940-2-8 864 Contra Costa Grizzly Peak 289 Comment
  CAS-BOT-BC121845  Dirca occidentalis P. H. Raven 1956-4-8 8986 Contra Costa About 0.5 miles NE of Grizzly Peak 396 Comment
  UC1176933  Dirca occidentalis Peter H. Raven 1950-2-19 1349 Contra Costa e side ridge at headwaters; Redwood Canyon 365 Comment
  SEINET7030710  Dirca occidentalis Barbara Ertter 1999-4-4 s.n. Contra Costa Redwood Regional Park in Oakland Hills, open slopes near Moon Trail head. Voucher for molecular sample. Comment
  JEPS112508  Disporum hookeri A. G. Murdock 2003-6-2 83 Contra Costa Franklin Canyon - McHarry Ranch Rd. 137 Comment
  UC792333  Disporum hookeri J. A. Rattenbury 1948-3-8 96 Contra Costa on s side of road nr creek 1/2 mi e of Oakland Tunnel 213 Comment
  POM300632  Disporum hookeri var. hookeri Mary L. Bowerman 1931-3-22 606 Contra Costa Alamo Canyon, east fork. Comment
  CDA4505  Dittrichia graveolens D. G. Kelch 2006-9-25 6 .476 Contra Costa Carquinez Strait; Marsh 1km. W of Pacheco Slough. Comment
  RSA739726  Dittrichia graveolens John Dittes 2006-10-26 1412 Contra Costa San Joaquin Valley (foothills near NW edge) 2 air mile S of Marsh Creek Reservoir Gauging Station, 1.6 air mile SW of intersection of Camino Diablo and Vasco Road, Contra Costa Water District's Los Vaqueros Watershed Mitigation. 67 Comment
  JEPS99973  Dodecatheon hendersonii S. O'Neil 2003-3-11 SEO 7 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC22384  Dodecatheon hendersonii H. P. Chandler 1900-3-23 Contra Costa Bryants region of Mount Diablo, Bryants Comment
Read comments
May 4 2007
  UCSB11262  Dodecatheon hendersonii Hayes, Judy 1961-3-29 Contra Costa 2 miles N of Danville on Cliffhill Road Comment
  UCSB24739  Dodecatheon hendersonii Rieser, R. 1966-4-4 Contra Costa On Tarry Lane, 8 miles from intersection of Sleepy Hollow Lane, Orinda. 152 Comment
  SEINET8733889 Image available Downingia elegans H. S. Reed 1940-1 356 a Contra Costa six miles south of Antioch 15 Comment
  JEPS22728  Downingia insignis Rimo Bacigalupi with Drs. L. Constance and R. Alava 1958-6-6 6366 Contra Costa 3 mi s Byron (between railroad tracks and the highway to Tracy) Comment
  OBI20959  Downingia insignis Robert F. Hoover 1967-4-28 10503 Contra Costa Byron Hot Springs Comment
  UC1026379  Downingia insignis John Thomas Howell 1953-4-26 28935 Contra Costa between Byron and Byron Hot Springs Comment
  UC583159  Downingia insignis Lewis S. Rose 1936-4-24 36154 Contra Costa 8 mi s Antioch 30 Comment
  RSA424714  Downingia insignis Aaron Liston 1987-4-27 670 -1 Contra Costa 3 miles S of Byron. Comment
  UC909625  Downingia insignis Kay H. Beach 1941-4-30 1082 Contra Costa Comment
  UC924240  Downingia ornatissima var. eximia H. S. Reed 1940-4-30 357 Contra Costa 4 mi s Antioch 15 Comment
  RSA166380  Downingia ornatissima var. eximia John H. Thomas 1953-4-25 3003 Contra Costa Empire Mine Road near Antioch Golf Course. South of Antioch. Comment
  JEPS14473  Downingia pulchella G. Thomas Robbins with Peter H. Raven 1956-4-28 3666 Contra Costa just e. of Martinez junction & 0.1 mi w. of Buchanan Field Rd. State Hwy. 4 Comment
  UCR196232  Downingia pulchella Beecher Crampton 1950-4-22 535 Contra Costa Concord Valley, between Hwy 4 and Buchanan Field (airport) 15 Comment
  UCD35141  Downingia pulchella Beecher Crampton 1950-4-22 535 Contra Costa Concord Valley. Comment
  CAS-BOT-BC41652  Draba cuneifolia var. cuneifolia Walter Knight; Irja Knight 1968-3-18 2278 Contra Costa Charles Lee Tilden Regional Park. In the Botanic garden. Comment
  UC1948932  Dryopteris arguta William J. Ferlatte, L. Maynard Moe 1970-4-27 1245 Contra Costa San Francisco Bay: Red Rock Island Comment
  SD70421  Dudleya abramsii subsp. setchellii W. L. Jepson 1918-6-5 7604 Contra Costa Mt. Diablo, on north peak. 1064 Comment
Read comments
Feb 4 2013
  UC1357009  Dudleya farinosa C. H. Uhl 1954-6-1 360 Contra Costa Richmond Point Comment
  JEPS107109  Echinochloa crus-galli Barbara Ertter, Kristin Ertter 1995-7-11 14486 Contra Costa West side of Mt Diablo; mudflat around inlet to Pine Pond. Comment
  POM319552  Echinochloa crus-galli Patricia Wilder 1961-8-29 1098 a Contra Costa Walnut Creek, near Calif. Hwy 24 west side of city; Coast Mt. Range 42 Comment
  SJSU10392  Echinochloa crus-galli J. E. Cox 1976-11-26 Contra Costa right of way of Dolores E Bay Municipal Utilities District, Lafayette Comment
  UCD150908  Echinochloa crus-galli James A. Neilson Jr. 1972-11-2 3611 Contra Costa Walnut Creek drainage at State Highway 4. Elevation estimated using Google Earth by label maker. 1 Comment
  UCD60948  Echinochloa crus-pavonis Beecher Crampton 1959-9-3 5451 Contra Costa 2 miles north of Orinda, Bear Creek, East Bay Munic. Distr. Project. Comment
  CAS-BOT-BC291118  Eclipta prostrata Walter Knight; Irja Knight 1980-8-26 3770 Contra Costa Hercules Comment
  JEPS45767  Elatine heterandra W. L. Jepson 1891-5-22 13954 Contra Costa Walnut Creek Comment
  UC1812  Eleocharis macrostachya J. Burtt Davy 1897-9-4 4077 Contra Costa Stege Comment
  UC1818864  Eleocharis macrostachya Barbara Ertter, Kristin Ertter 1995-7-11 14471 Contra Costa Sulfur Spring on Pine Cr, Diblo Foothill Regional Park, marshy wet ground. 121 Comment
  CDA6124  Elymus X hansenii D. G. Kelch 2007-5-12 7 .29 Contra Costa Carquinez Strait; Franklin Ridge, S of Hwy 4 at McEwen Rd. Comment
  UC691194  Elymus X hansenii Mary L. Bowerman 1935-7-22 3193 Contra Costa Sloan Rd. Mount Diablo, Inner Black Hills (near w end) 533 Comment
  UC2028475  Elymus X hansenii Barbara Ertter with Richard K. Brummitt 1998-5-6 16100 Contra Costa Point San Pablo west of Richmond, crest of road to yacht harbor Comment
  UCD149009  Elymus caput-medusae D. Kelch; Troy McGregor; Ed Biffin 2010-6-1 10. 226 Contra Costa Mt. Diablo. Knobcone Point Road. 542 Comment
  UC38136  Elymus glaucus J. Burtt Davy April 1897 Contra Costa Point Isabel Comment
  UC53737  Elymus multisetus Jos. Burtt Davy 1900-6-7 6651 Contra Costa San Pablo Ridge Comment
  UC691171  Elymus multisetus Mary L. Bowerman 1938-6-24 3690 Contra Costa Canyon Nook Mount Diablo (e side of creek) 670 Comment
  UC2028503  Elymus multisetus Barbara Ertter with Mary Bowerman, Lisa Schultheis 1998-8-21 16401 Contra Costa Curry Point on south side of Mount Diablo Comment
  SEINET12755579  Elymus triticoides J. B. Davy 1900-6-7 6658 Contra Costa Near Pacheco. Comment
  POM32526  Epilobium canum subsp. canum A. D. E. Elmer 1903-07 4620 Contra Costa Mount Diablo Comment
  UC1745970  Epilobium canum subsp. canum Annetta M. Carter 1933-11-25 419 Contra Costa Mount Diablo Comment
  UC692454  Epilobium canum subsp. canum Mary L. Bowerman 1930-8-31 442 Contra Costa near Garden-of-the-Gods; Mount Diablo, Rock City Ridge Comment
  UC2027841  Epilobium ciliatum Barbara Ertter 2000-9-30 17535 Contra Costa West side Mount Diablo, pond on China Wall Road ca 1/2 mile NW of Macedo Ranch. Comment
  CDA38073  Epilobium ciliatum subsp. ciliatum A. G. Murdock 2004-5-28 295 Contra Costa Carquinez Strait; Refugio Valley. Comment
  JEPS111564  Epilobium ciliatum subsp. ciliatum A. G. Murdock 2004-5-28 295 Contra Costa Refugio Valley 120 Comment
  UC1613486  Epilobium ciliatum subsp. ciliatum Charles M. Belshaw 1936-12-13 2746 Contra Costa near Berkeley Country Club (North Coast Range); North Coast Range 152 Comment
  UC2028027  Epilobium ciliatum subsp. ciliatum Barbara Ertter 1997-9-14 15806 Contra Costa West side of Mount Diablo, Pine Creek upstream from Dusty Trail. Comment
  UC2070463  Epilobium ciliatum subsp. ciliatum Barbara Ertter with Brad Olson, Dianne Lake, Lynne Hosley and A. Youngson 1991-10-20 10877 Contra Costa Dow Wetlands Preserve, just W of Antioch marina. Comment
  UC521667  Epilobium densiflorum Joseph Andorfer Ewan 1933-10-15 8025 Contra Costa above Indian Ceremonial Spr. (in depression where water lingered); Mount Diablo Comment
  UC692456  Epilobium minutum Mary L. Bowerman 1933-6-3 2244 Contra Costa Meridian Peak summit Mount Diablo Comment
  CAS-BOT-BC57103  Equisetum X ferrissii W. Knight; I. Knight 1977-5-22 s.n. Contra Costa Antioch Dunes Comment
  UC692137  Equisetum X ferrissii Mary L. Bowerman 1933-11-4 2460 Contra Costa toward head of the spring in rocky gully Alder Creek Springs; Mt. Diablo 487 Comment
  CAS-BOT-BC204545  Eragrostis curvula George W. Murray 1964-7-24 s.n. Contra Costa 1 to 2 miles east of Clayton, Marsh Creek Road Comment
  CAS-BOT-BC204547  Eragrostis curvula John Thomas Howell 1954-9-5 30026 Contra Costa Marsh Creek Springs Park Comment
  JEPS103961  Eriastrum ertterae David Gowen 2003-6-14 Contra Costa Lime Ridge Open Space, near transmission tower 280 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
  UC133927  Eriastrum sapphirinum Katharine Brandegee May 1889 Contra Costa Judsonville Comment
  UC1118629  Ericameria arborescens R. W. Lundh 1932-8-29 153 Contra Costa 2/3 mi n of Eagle Point; Mt. Diablo Quadrangle 457 Comment
  UC2028020  Ericameria arborescens Barbara Ertter 1997-9-14 15816 Contra Costa Southwest side of Mount Diablo, Wall Point Road on open sandstone ridge northwest of Wall Point. Comment
  UC2029062  Ericameria arborescens Barbara Ertter 2000-7-29 17449 Contra Costa Donner Canyon Road below upper junction of Hetherington Trail, north side of Mount Diablo Comment
  CAS-BOT-BC287535  Ericameria linearifolia John Thomas Howell 1926-3-7 1673 Contra Costa Mt Diablo Comment
  JEPS117962  Ericameria linearifolia Holly Forbes and Barbara Keller 2009-5-29 Contra Costa Mount Diablo State Park, along deer Flat Road, about 0.1 mi beyond Juniper Camp. Comment
  JEPS31295  Ericameria linearifolia Elsa Kraeger 1926-3-7 Contra Costa w side Mt. Diablo Comment
  POM289061  Ericameria linearifolia Lyman Benson 1935-3-16 6267 Contra Costa Mt. Diablo, Watershed: Walnut Creek; Mountain Range: Mt. Diablo. 915 Comment
  UC1118741  Ericameria linearifolia R. W. Lundh 1932-9-22 164 Contra Costa Mt. Diablo Mt. Diablo Quadrangle, Mt. Diablo Comment
  UC1543101  Ericameria linearifolia Donald G. Nelson 1937-4-18 503 Contra Costa on March Creek Road in canyon between Clayton and Byron (near stream along highway, dry sandy clearing near wood) Comment
  UC36564  Ericameria linearifolia F. P. McLean 1875-3-1 Contra Costa Mt. Diablo Comment
  UC86674  Ericameria linearifolia unknown 1889-5-1 Contra Costa Antioch Comment
  UC697206  Ericameria linearifolia Mary L. Bowerman 1938-5-28 3649 Contra Costa Silver Creek Nook Mount Diablo, Silver Creek Nook (North Road, peeping out from under a willow) 640 Comment
  UC135196  Erigeron foliosus var. franciscensis Katharine Brandegee 1907-6-16 Contra Costa hills bet. Antioch and Marsh Creek 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
  UC31418  Erigeron lonchophyllus F. P. McLean 1875-3-1 Contra Costa Mt. Diablo Comment
  UC1181399  Eriodictyon californicum Jerry Powell 1960-5-24 Contra Costa hill between Canyon and Moraga (hill se of canyon); hill between Canyon and Moraga (hill se of canyon) Comment
  UC691670  Eriodictyon californicum Mary L. Bowerman 1930-6-10 315 Contra Costa Mount Diablo Meridian Peak Summit (Meridian Peak Summit); , Meridian Peak Summit Comment
  UC2027962  Eriogonum gracile Barbara Ertter 1997-8-24 15773 Contra Costa Mount Diablo, SE side of peak on Mary Bowerman/Fire Interpretive Trail. Comment
  UC2027963  Eriogonum gracile Barbara Ertter 1997-8-24 15772 Contra Costa Mount Diablo, near first corner on Summit Road below Toyon Campground. 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
  UC692018  Eriogonum gracile var. gracile Mary L. Bowerman 1932-11-11 1639 Contra Costa Little below Moses Rock Spring (ridge leading up from Buckle Point (on west road)); Mount Diablo Comment
  UC692050  Eriogonum gracile var. gracile Mary L. Bowerman 1930-9-9 458 Contra Costa North Peak, Mount Diablo Mount Diablo; above Gabriel-Hinks'? Comment
  UC767894  Eriogonum luteolum var. luteolum R. F. Hoover 1937-9-2 2714 Contra Costa Lower Marsh Creek Canyon Comment
  CAS-BOT-BC268915  Eriogonum nudum var. auriculatum Mary L. Bowerman 1932-9-17 1585 Contra Costa Mount Diablo. Donner Canyon, West fork: of west fork 335 Comment
  CAS-BOT-BC268917  Eriogonum nudum var. auriculatum A. D. E. Elmer 1903-7-1 4546 Contra Costa Mount Diablo Comment
  SEINET530762  Eriogonum nudum var. auriculatum Paul Opler 2007-6-23 Contra Costa Point Molate. 19 Comment
  CAS-BOT-BC253092  Eriogonum roseum R. F. Hoover 1940-11-30 4699 Contra Costa 2 mi. S of Antioch Comment
  POM300579  Eriogonum truncatum Mary L. Bowerman 1933-5-25 2198 Contra Costa Alamo Canyon; above Wilson's barn. Oyster Ridge, west end of south face. Comment
  UC526210  Eriogonum truncatum John Thomas Howell 1934-4-8 11816 Contra Costa 10 mi on Marsh Creek Road Clayton Comment
  UCR139461  Eriogonum truncatum J. T. Howell 1934-4-8 11816 Contra Costa San Francisco Bay Region, [Black Hills] 10 mi from Clayton [SE] on Marsh Creek Road 366 Comment
  RSA420628  Eriogonum umbellatum var. bahiiforme Cora Mae Life 1924-07 s.n. Contra Costa Mount Diablo Comment
  UCD132150  Eriophyllum confertiflorum P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  CAS-BOT-BC298509  Eriophyllum confertiflorum H. E. McMinn 1923-6-18 1152 Contra Costa Horn Canon Comment
  UC691686  Eriophyllum confertiflorum var. confertiflorum Mary L. Bowerman 1933-5-18 2121 Contra Costa near Blackberry Spring; Mount Diablo Comment
  UCD132123  Eriophyllum jepsonii John Thomas Howell 1950-7-5 26636 Contra Costa above Nortonville. Comment
  CAS-BOT-BC300970  Eriophyllum lanatum var. achilleoides E. E. Stanford 1930-5-24 1513 Contra Costa Marsh Creek Canyon Comment
  UC194915  Eriophyllum lanatum var. achilleoides H. M. Hall 1916-5-31 10134 Contra Costa s side of summit Mt. Diablo 1170 Comment
  UC31674  Eriophyllum lanatum var. achilleoides W. L. Jepson May 22 1891-May 23 1891 Contra Costa Mt. Diablo 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
  UC691719  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1930-6-7 281 Contra Costa summit Meridian peak; Mount Diablo, Meridian peak Comment
  CAS-BOT-BC300969  Eriophyllum lanatum var. achilleoides John Thomas Howell 1931-5-12 6485 A Contra Costa Marsh Creek Road ne. of Mt. Diablo Comment
  CAS-BOT-BC300978  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1935-5-22 3066 Contra Costa Mount Diablo. Most westerly of the two ridges which converge at Twin Peaks (Eagle Point ridge) 365 Comment
  JEPS75517  Erodium cicutarium P. F. Yorks 1974-2-24 113 Contra Costa ca 1.9 km s Bear Creek Road on Hampton Road (n of Briones Reservoir); Hampton Road Natural Reserve 200 Comment
  UC35196  Erodium macrophyllum V. King Chesnut 1888-4-14 Contra Costa Moraga Valley Comment
  UC1487288  Eryngium aristulatum var. aristulatum Yusuf Sheikh 1974-5-5 587 Contra Costa 2.1 mi. s.e. of Byron Post sign on rd. J4 (3.1 mi. s.e. of intersection with Camino Diablo) Comment
  CDA38328  Eryngium armatum D. G. Kelch 2007-4-1 7 .108 Contra Costa Carquinez Strait; Pt. Pinole. Comment
  JEPS111065  Eryngium armatum Lee Echols 2003-6-2 s.n. Contra Costa N of Lark Drive in central portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  UC1606293  Eryngium articulatum Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10710 Contra Costa n. Pittsburg (Browns Isl., near confluence of Sacramento & San Joaquin rivers, opposite Pittsburg Marina, at water's edge (Botany Cove)); Browns Isl. Comment
  UCD127482  Eryngium articulatum Walter Knight; Irja Knight et al. 1978-9-5 3235 Contra Costa Browns Island. Botany Cove. Comment
  UC691872  Eryngium castrense Mary L. Bowerman 1931-6-16 926 Contra Costa by old <Govornment> Trail Chase Pond; Mt. Diablo, Chase Pond 563 Comment
  UC692322  Eryngium castrense Mary L. Bowerman 1935-6-28 3170 Contra Costa Mt. Diablo, Chase Pond Comment
  CDA9503  Eryngium spinosepalum D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .23 Contra Costa Byron Airport. Comment
  UCD77691  Eryngium spinosepalum Robert E. Preston 2000-8-6 1432 Contra Costa 2 mi se of Byron Hot Springs, on w side of Byron Hot Springs Rd. 12 Comment
  UC1745539  Eryngium vaseyi Annetta M. Carter 1951-5-13 3057 Contra Costa 3.3 mi. S of Byron. Comment
  CAS-BOT-BC40770  Erysimum capitatum Volney Rattan 1879-1-1 s.n. Contra Costa Antioch. Comment
  CAS-BOT-BC40773  Erysimum capitatum Walter Knight 1965-3-1 s.n. Contra Costa Antioch. Comment
  RSA39907  Erysimum capitatum var. angustatum P. A. Munz 1947-10-8 12205 Contra Costa Antioch 8 Comment
  RSA0008586  Erysimum capitatum var. angustatum James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  SBBG92005  Erysimum capitatum var. capitatum H. L. Mason 1933-4-9 7189 Contra Costa E of Antioch along the San Joaquin River 12 Comment
  UC10565  Erysimum capitatum var. capitatum J. Burtt Davy 1895-4-7 996 Contra Costa foothills Antioch Comment
  LA204363  Erysimum capitatum var. capitatum Herbert L. Mason; 1933-4-9 7189 Contra Costa E of Antioch along San Joaquin River 12 Comment
  CAS-BOT-BC151467  Erythranthe latidens Alice Eastwood; John Thomas Howell 1936-4-19 2155 Contra Costa 4 miles s. of Antioch Comment
  JEPS51717  Eschscholzia caespitosa Edw. L. Greene 1888-3-25 Contra Costa Byron Comment
  CAS-BOT-BC402991  Eschscholzia californica Philip A. Munz 1947-10-8 12190 Contra Costa Antioch 12 Comment
  CHSC75109  Eschscholzia californica Roger Thom 1987-4-21 6 Contra Costa 3300 block of Johnson Rd. Lafayette. 167 Comment
  JEPS99964  Eschscholzia californica G. Smick 2003-4-8 GAS 133 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2012987  Eucalyptus globulus Barbara Ertter with Tony Morosco 1996-7-27 15029 Contra Costa Mount Diablo State Park, north foot of mountain between Donner Canyon and Back Creek Road. 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
  JEPS87981  Eucrypta chrysanthemifolia Barbara Ertter 1991-6-1 10078 Contra Costa hills w Danville (e side of Wind Caves on Sycamore Trail to Devil's Hole); Las Trampas Regional Wilderness, Wind Caves 548 Comment
  JEPS99575  Eucrypta chrysanthemifolia Mary L. Bowerman 1995-7-2 Contra Costa Mount Diablo, Back Canyon. Comment
  CDA1171  Eucrypta chrysanthemifolia D. Kelch 1998-5-14 8 Contra Costa Mount Diablo; South slope of hill west of Mt. Zion. Comment
  UC1005249  Eucrypta chrysanthemifolia var. chrysanthemifolia Rolf Y. Berg 1955-6-29 Contra Costa ne of Mt. Diablo State Park (Mitchell Canyon); Mitchell Canyon Comment
  UC692711  Euphorbia crenulata Mary L. Bowerman 1931-3-21 596 Contra Costa Sycamore Canyon; Mount Diablo 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
  CDA37280  Euphorbia oblongata D. G. Kelch 2011-3-31 11 .073 Contra Costa Carquinez Strait Region; Richmond, near Point Pinole Regional Park. Comment
  JEPS100098  Euphorbia oblongata A. Langston 2003-6-19 AL 93 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS111951  Euphorbia oblongata D. G. Kelch 2004-6-6 04 .224 Contra Costa Martinez - Train Station Downtown Martinez. Alhambra Creek near bay and railroad Station 2 Comment
  UC2032843  Euphorbia oblongata Doran, Andrew Scott 2012-3-20 714 Contra Costa Trail down from highest point of Brooks Island. South east part of Island. 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
  CDA18802  Euphorbia oblongata B. Case 2000-4-2 PDR 031733 Contra Costa San Pablo. 0 Comment
  CDA4843  Euphorbia oblongata T. C. Fuller 1961-7-6 6585 Contra Costa Carquinez Strait; Alhambra Valley, Highway 4, 0.5 mile west of Glen Frazier Station, ca. 4 miles west of Martinez. 0 Comment
  CDA4845  Euphorbia oblongata T. C. Fuller 1958-7-3 1231 Contra Costa Carquinez Strait; Highway 4, 4 miles west of Martinez. 0 Comment
  HSC83431  Euphorbia oblongata William E. Davis 1981-4-23 Contra Costa Martinez, along Franklin Creek in John Muir National Historic Site. Comment
  JEPS111958  Euphorbia peplus D. G. Kelch 2005-4-2 05 .102 Contra Costa Crockett - Edwards Canyon EBRP Carquinez shoreline. Edwards Creek staging area 24 Comment
  UC2062607  Euphorbia spathulata Barbara Ertter with Dan Norris 2001-4-8 17590 Contra Costa Lime Ridge Open Space east of Walnut Creek. 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
  CAS-BOT-BC278177  Festuca D. E. Breedlove 1971-5-14 19339 Contra Costa Along Sierra Vista Way, Lafayette Comment
  UC692287  Festuca californica Mary L. Bowerman 1931-5-2 788 Contra Costa n end Eagle Point ridge; Mount Diablo Comment
  CAS-BOT-BC278315  Festuca californica subsp. californica Mary L. Bowerman 1935-5-3 2953 Contra Costa Mount Diablo. Fossil Ridge: Hillside below the Jungle of the Garden Gods Comment
  CAS-BOT-BC278317  Festuca californica subsp. californica Mary L. Bowerman 1931-5-2 788 Contra Costa Mount Diablo. North end of Eagle Point ridge Comment
  UC2028572  Festuca microstachys Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15521 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  POM205843  Festuca rubra Jos Burtt Davy 1897-04 s.n. Contra Costa Point Isabel. Comment
  JEPS100135  Foeniculum vulgare A. Langston 2003-7-28 AL 79 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC691811  Foeniculum vulgare Mary L. Bowerman 1931-10-5 1052 Contra Costa Marsh Creek Rd. near saddle by dry streambed Mt. Diablo 274 Comment
  SEINET7417501 Image available Frangula californica subsp. californica L. J. Musselman 1970-7-26 3769 Contra Costa W slope of Mount Diablo 1067 Comment
  SEINET7417539 Image available Frangula californica subsp. californica L. J. Musselman 1970-7-26 3769 Contra Costa W slope of Mount Diablo 1067 Comment
  JEPS74307  Frankenia salina John Thomas Howell and Gordon H. True 1972-6-29 48919 Contra Costa Byron Hot Springs Road se Byron Comment
  UCD99590  Frankenia salina John Thomas Howell; Gordon H. True 1972-6-29 48919 Contra Costa on Byron Hot Springs Road southeast of Byron. Comment
  UCD99612  Frankenia salina M. Wiesendanger 1926-6-1 1776 Contra Costa Richmond. Comment
  CDA36612  Frankenia salina T. C. Fuller 1965-11-24 14322 Contra Costa South side of Byron Hot Springs Road, 0.6 mile southwest of Byron-Tracy Highway, ca. 1 mile southwest of Byron. 0 Comment
  CAS-BOT-BC223391  Fraxinus dipetala Mary L. Bowerman 1935-6-1 3104 Contra Costa Mount Diablo. First small ridge east of Mitchell-Pine divide 975 Comment
  POM300728  Fraxinus dipetala Mary L. Bowerman 1930-6-22 363 Contra Costa Mount Diablo: Mitchell Canyon Comment
  UC1753842  Fraxinus dipetala Annetta M. Carter, Leo Bowerman 1935-6-1 876 Contra Costa Mt. Diablo. 975 Comment
  CDA37274  Fraxinus velutina D. G. Kelch 2011-3-31 11 .077 Contra Costa Carquinez Region; Richmond; Hilltop Lake Park. Comment
  UC672112  Fritillaria affinis Herbert L. Mason 1925-3-10 1293 Contra Costa Mount Diablo, Sycamore Canyon Sycamore Canyon; Mount Diablo, Sycamore Canyon Comment
  UC692002  Fritillaria affinis Mary L. Bowerman 1931-3-8 561 Contra Costa Mount Diablo, near mouth of Mitchell Canyon Mitchell Canyon; Mount Diablo, Mitchell Canyon Comment
  CAS-BOT-BC136073  Fritillaria affinis Dean William Taylor 1971-3-28 971 Contra Costa Along Morgan Territory Road 304 Comment
  CAS-BOT-BC136075  Fritillaria affinis Mary L. Bowerman 1932-3-23 1129 Contra Costa Tiny canyon east of Donner Canyon - Mt. Diablo 274 Comment
  JEPS2598 Image available Fritillaria agrestis J. Burtt Davy 1895-4-7 987 Contra Costa Antioch Comment
  JEPS99505  Fritillaria liliacea Mary Bowerman 1979-4-3 Contra Costa Mount Diablo, Shell Ridge. Comment
  UC13831  Fritillaria liliacea J. P. Tracy 1900-3-24 612 Contra Costa near Point Richmond (San Francisco Bay Region); San Francisco Bay Region 3 Comment
  UCD121557  Galium andrewsii P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UC691532  Galium andrewsii subsp. gatense Mary L. Bowerman 1930-6-7 283 Contra Costa summit Mount Diablo Comment
  CDA42131  Galium aparine A. G. Murdock 2004-3-19 223 Contra Costa Carquinez Strait Region; Luzon. Sycamore Avenue just east of Rodeo/Hercules where train crosses Highway 4 (Luzon). Comment
  JEPS14519  Galium murale L. T. Dempster 1956-5-26 1004 Contra Costa hill above Overhill Ct.; Orinda Comment
  UC1795726  Galium murale Barbara Ertter, Mary Bowerman, Lisa Schultheis 1995-3-31 13942 Contra Costa Mount Diablo State Park, lower end of Mitchell Canyon south of Clayton, open oak woodland/grassland open flat area on east side of stream not far from trail head. 182 Comment
  UC2012961  Galium murale Barbara Ertter with Travis Columbus 1990-6-10 9114 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill: near crossing on Spengler Trail NE of Briones Peak. Comment
  CAS-BOT-BC200632  Garrya elliptica H. E. McMinn 1925-3-30 1403 Contra Costa Near summit Thornhill Rd and Skyline Blvd. Comment
  CAS-BOT-BC200634  Garrya elliptica John Thomas Howell 1925-9-12 1437 Contra Costa Oakland Hills at head of San Leandro Canyon Comment
  CAS-BOT-BC200636  Garrya elliptica C. H. M. 1919-8-24 s.n. Contra Costa Las Trampas Peak Comment
  CDA31081  Garrya elliptica D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .217 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  JEPS77009  Garrya elliptica Robert M. Lloyd 1963-3-17 2137 Contra Costa across from 7090 Skyline Drive (0.5 mi e of intersection of Grizzly Peak Road and Skyline Drive, on Skyline Drive, Huckleberry Trail); Skyline Drive, Huckleberry Trail Comment
  UC21587  Garrya elliptica Willis L. Jepson 1892-3-5 Contra Costa Redwood Peak Comment
  UC634816  Garrya elliptica H. L. Mason 1925-9-12 2223 Contra Costa head of San Leandro Creek Canyon; Oakland Hills Comment
  CAS-BOT-BC169942  Garrya fremontii H. E. McMinn 57 Contra Costa Summit Mt Diablo Comment
  CAS-BOT-BC169944  Garrya fremontii Lewis S. Rose 1954-6-29 54084 Contra Costa Mt. Diablo, summit 1170 Comment
  CAS-BOT-BC169946  Garrya fremontii L. R. Abrams 1910-10-8 4353 Contra Costa Mt. Diablo summit 1158 Comment
  POM300684  Gastridium phleoides Mary L. Bowerman 1933-6-14 2272 Contra Costa Curry Cave Canyon: Ridge between two main forks. Mount Diablo. Comment
  CDA9420  Gastridium ventricosum D. G. Kelch 2004-5-3 4 .152 Contra Costa Carquinez Strait; Mt Wanda, Martinez. 0 Comment
  UC692411  Gastridium ventricosum Mary L. Bowerman 1931-5-2 798 a Contra Costa foot of Eagle Point ridge Mount Diablo; , foot of Eagle Point ridge Comment
  CAS-BOT-BC278704  Gastridium ventricosum Mary L. Bowerman 1932-4-27 1397 Contra Costa Mount Diablo. Oyster Ridge, south face, canyon west of Riggs Canyon 335 Comment
  CHSC25033  Geranium carolinianum Willis Ball 1975-3-26 512 Contra Costa Contra Loma Regional Park. In area #8. At the base of a large hill ca. 200 yds s of main parking lot at s end of lake. 60 Comment
  UC692709  Geranium carolinianum Mary L. Bowerman 1935-5-25 3076 Contra Costa Rhine Canyon Mount Diablo 914 Comment
  RSA0028181  Geranium carolinianum Mary L. Bowerman 1935-5-25 3076 Contra Costa Rhine Canyon. 915 Comment
  CDA29060  Geranium molle D. G. Kelch 2006-5-7 6 .154 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  UCD164885  Gilia achilleifolia Henry House 1995-4-30 1995- 10 Contra Costa About 1.2 km west of Walnut Blvd., ca. 0.5 km south of Marsh Creek Rd. 60 Comment
  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
  UC908864  Gilia achilleifolia subsp. achilleifolia Herbert L. Mason 1929-3-29 5123 Contra Costa Mount Diablo 762 Comment
  UC30194  Gilia achilleifolia subsp. multicaulis H. N. Bolander 1866-1 6400 Contra Costa Monte Diablo Comment
  POM300971  Gilia achilleifolia subsp. multicaulis Mary L. Bowerman 1935-5-1 2932 Contra Costa North Road 2 miles from North Gate. 183 Comment
  UC1795760  Gilia achilleifolia subsp. multicaulis Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14226 Contra Costa Mt. Diablo southeast of Walnut Creek, serpentine knoll ca 1/2 airmile north of Curry Point, grassland, oaks around knoll. . 487 Comment
  SEINET12278771  Gilia capitata H. M. Hall 1901-1 s.n. Contra Costa Region of San Francisco Bay, Mt. Diablo Comment
  RSA276842  Gilia capitata subsp. staminea James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  RSA566427  Gilia capitata subsp. staminea Peter L. Morrell, Donna S. Krause 1993-5-16 239 Contra Costa Contra Costa County, along sides of raod 100m W of 1701 Wilbur Ave, Antioch, betw Southern Pacific tracks and San Joaquin River (0.5 miles W of Hwy 4/160). Comment
  UC134012  Gilia capitata subsp. staminea C. F. Baker 1903-4-25 2805 Contra Costa Antioch Comment
  UC909033  Gilia clivorum Herbert L. Mason 1929-3-29 5128 Contra Costa 2 mi e Clayton (Marsh Creek Road); e of Clayton Comment
  UC963965  Gilia clivorum R. F. Hoover 1938-3-25 2895 Contra Costa Markley Canyon Comment
  UCSB5069  Gilia clivorum Kamb, Peter; Chisaki, Francia 1950-3-18 Contra Costa Head of Pine Canyon; Mount Diablo 533 Comment
  CHSC21634  Gilia tricolor Willis Ball 1975-3-9 489 Contra Costa Contra Loma Regional Park. In area #8. Level mound ca. 450 yds s of main parking lot ca. 750 yds w of Contra Loma Blvd. 76 Comment
  RSA49035  Gilia tricolor Verne Grant, Alva Grant 1949-3-30 8640 Contra Costa 4 miles west of Byron on Marsh Creek road. Comment
  JEPS33662  Githopsis diffusa subsp. robusta Wayne Roderick 1963-5-30 Contra Costa 2.7 mi e Morgan Territory road (or 0.3 mi e of Marsh Creek Stables, on Marsh Creek Rd) Comment
  SEINET10464451  Githopsis diffusa subsp. robusta Bowerman 1935-5-3 BOWERMAN 2952 Contra Costa Rock City Ridge (Fossil Ridge): hillside below the Jungle of the Garden Gods 488 Comment
  UC691591  Githopsis specularioides Mary L. Bowerman 1935-5-18 3034 Contra Costa Meridian Peak, n of the summit parking area Mount Diablo 1066 Comment
  SEINET10464620  Githopsis specularioides Bowerman 1935-5-18 BOWERMAN 3034 Contra Costa Meridian Peak north of the summit parking area 1067 Comment
  JEPS43109  Glaux maritima J. B. Davy 1900-6-7 6665 Contra Costa Suisun Bay, Martinez Martinez; Suisun Bay, Martinez Comment
  CDA5880  Gnaphalium californicum D. G. Kelch, A. G. Murdock 2004-7-9 4 .295 Contra Costa Carquinez Strait Region; Crockett - Carquinez Scenic Drive. East of Crockett West of Bull Valley SA. Comment
  RSA97489  Grindelia camporum L. S. Rose 1954-9-27 54116 Contra Costa Byron. 6 Comment
  CAS-BOT-BC305225  Grindelia hirsutula Evelina Cannon 1900-9-17 s.n. Contra Costa Giant station Comment
  CAS-BOT-BC305227  Grindelia hirsutula Lewis S. Rose 1930-7-22 s.n. Contra Costa Pittsburg Comment
  JEPS111676  Grindelia hirsutula D. G. Kelch 2003-8-13 03 .103 Contra Costa Martinez Marsh 0 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
  UC1610053  Grindelia hirsutula Meredith A. Lane 1986-9-8 3104 Contra Costa at n city limit Pinole (along San Pablo Blvd.) 15 Comment
  CAS-BOT-BC305240  Grindelia hirsutula John Thomas Howell 1929-9-21 4387 Contra Costa 4 miles west of Clayton Comment
  CAS-BOT-BC305248  Grindelia hirsutula John Thomas Howell 1930-9-28 5486 Contra Costa Tunnel Road near Oak Spring Comment
  UC117325  Guillenia flavescens T. S. Brandegee May 1892 Contra Costa Antioch Comment
  JEPS68950  Guillenia lasiophylla Edward Lee 1935-3-10 1279 Contra Costa Donovan Road, w watershed of Kirker Creek Kirker Pass, Kirker Creek Comment
  JEPS68953  Guillenia lasiophylla Edward Lee 1935-3-10 1283 Contra Costa Donovan Road, w watershed of Kirker Creek Kirker Pass, Kirker Creek Comment
  UC691088  Guillenia lasiophylla Mary L. Bowerman 1933-4-26 1924 Contra Costa ese of North Peak ridge peak; Mount Diablo 609 Comment
  POM273845  Guillenia lasiophylla Lyman Benson 1935-3-16 6284 Contra Costa 3 miles S of Antioch. Mt. Range: Mt. Diablo; Watershed: Sacramento River. 152 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
  CAS-BOT-BC309406  Helenium puberulum Malcom A. Nobs; S. Galen Smith 1949-7-8 949 Contra Costa Otto's Black Bass Resort, 4 miles north of Kingston Comment
  UC566690  Helenium puberulum H. L. Mason 1924-11-23 1162 Contra Costa Las Trampas Creek Comment
  UC469039  Helenium puberulum Tracy J. Storer 1912-7-12 Contra Costa n mi sw Walnut Creek 60 Comment
  CAS-BOT-BC305322  Helianthella castanea Alice Eastwood 1915-5-30 4475 Contra Costa Mitchel [Mitchell] Canyon, Mt. Diablo Comment
  CAS-BOT-BC305326  Helianthella castanea John Thomas Howell 1931-5-12 6475 Contra Costa Nortonville Comment
  JEPS86612  Helianthella castanea L. R. Heckard 1989-4-22 6727 a Contra Costa Rocky Point Mt. Diablo State Park Comment
  RSA72655  Helianthella castanea J. T. Howell 1940-4-21 15398 Contra Costa Pine Canyon, Mount Diablo Comment
  UC1819054  Helianthella castanea Barbara Ertter, Chris Thayer 1995-4-25 13995 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Black Hawk Ridge Rd. on north side Black Hawk Ridge. Comment
  UCR260817  Helianthus annuus D. Finley 1998-4-25 1- 07 Contra Costa San Francisco Bay Region, Lafayette, 2.5 miles at the crow flies west of highway 24 east in a residential area, on Lafayette Ridge behind 1212 Monticello Road 229 Comment
  CAS-BOT-BC305373  Helianthus annuus Walter Knight 1978-8-19 3234 Contra Costa Along Fredericksen Lane. Contra Loma Regional Park Comment
  JEPS88686  Helianthus gracilentus Mary L. Bowerman 1932-10-1 1602 Contra Costa Mitchell Canyon Mount Diablo ((1931) burn near stream) 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
  UC691497  Helminthotheca echioides Mary L. Bowerman 1936-8-8 3524 Contra Costa w fork Diablo Stock Farm Canyon (= Emmons Cayon, Wattis Ranch); Mount Diablo, Diablo Stock Farm (Wattis Ranch) Canyon, w for Comment
  UCD150889  Helminthotheca echioides James A. Neilson Jr. 1972-11-2 3606 Contra Costa Channel of Walnut Creek ca. 1 mi. north of junction with Pine Creek. Elevation estimated using Google Earth by label maker. 1 Comment
  CAS-BOT-BC306265  Hemizonia congesta subsp. lutescens R. E. Frenkel 1963-8-18 260 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  CDA7025  Hemizonia congesta subsp. luzulifolia D. G. Kelch, A. G. Murdock 2004-7-9 4 .294 Contra Costa Carquinez Strait Region; Crockett - Carquinez Scenic Drive. East of Crockett West of Bull Valley SA. Comment
  JEPS121012  Hemizonia congesta subsp. luzulifolia D. G. Kelch 2006-7-14 06 .333 Contra Costa Between Rte 4 and Carbon Rd. E Rodeo Comment
  LA203706  Hemizonia congesta subsp. luzulifolia John Thomas Howell; 1930-9-28 5488 Contra Costa 2 mi. from Concord on road to Walnut Creek Comment
  UC201238  Hemizonia congesta subsp. luzulifolia H. M. Hall 1916-7-24 10253 Contra Costa Richmond Region of San Francisco Bay, Richmond Comment
  UC570418  Hemizonia congesta subsp. luzulifolia Chas. M. Belshaw 1936-10-26 2722 Contra Costa fallow fields near Walnut Creek; Coast Ranges Comment
  UC990633  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1909-9-24 Contra Costa roadside 1 mi n San Ramon Comment
  CAS-BOT-BC314860  Hemizonia congesta subsp. luzulifolia R. F. Hoover 1966-8-31 9947 Contra Costa North of Livermore Valley on Highland Road Comment
  JEPS116747  Hemizonia congesta subsp. luzulifolia David Gowen 2006-10-2 662 Contra Costa Wildcat Regional Park on Nimitz Way just south of trail heading east to San Pablo Reservoir. Comment
  POM360296  Hemizonia fitchii E. E. Stanford 1930-9-20 2100 Contra Costa Near Walnut Creek Comment
  RSA121592  Hemizonia fitchii H. S. Yates 1934-9-2 4086 Contra Costa 2 miles S of Mt. Diablo. 579 Comment
  RSA81676  Hemizonia luzulifolia subsp. rudis James I. McMurphy 1909-9-24 s.n. Contra Costa San Ramon Road, above Hayward. Comment
  CDA7804  Hemizonia pungens subsp. maritima W. Kean 1974-6-26 Contra Costa La Casa Via, Walnut Creek. 0 Comment
  POM52253  Hemizonia pungens subsp. pungens A. D. E. Elmer 1903-05 4892 Contra Costa Walnut Creek Comment
  CAS-BOT-BC124027  Hesperevax caulescens M. K. Curran 1883-4-1 s.n. Contra Costa Antioch Comment
  OBI48583  Hesperevax caulescens Joseph Andorfer Ewan 1936-5-3 9496 Contra Costa Wildcat crk near Orinda road bridge Comment
  UC88275  Hesperevax sparsiflora var. sparsiflora M. K. Curran May 1886 Contra Costa Antioch Comment
  CAS-BOT-BC167428  Hesperolinon breweri M. K. Curran 1884-1-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC167445  Hesperolinon breweri K. C. 1884-6-1 s.n. Contra Costa Antioch Comment
  CHSC67246  Hesperolinon breweri James D. Jokerst 1987-6-17 2923 Contra Costa Los Vaqueros watershed study in Livermore Valley ca. 1 mi W of Vasco Rd. and ca. 0.5 mi S of Camino Diablo Rd. Meadows and adjacent lowlands. Comment
  JEPS122865  Hesperolinon breweri Adam C. Schneider with Yuri P. Springer 2014-5-16 592 Contra Costa Donner Creek Fire Rd trail, Mt. Diablo State Park. Comment
  RSA151584  Hesperolinon breweri H. K. Sharsmith 1947-6-2 3947 Contra Costa Headwaters of marsh Creek, on shale (?), 0.6 miles from summit of Clayton-Tassajaro-Livermore road, Mount Diablo 305 Comment
  UC692695  Hesperolinon breweri Mary L. Bowerman 1933-6-7 2254 Contra Costa North Peak Ridge Mount Diablo 1005 Comment
  CAS-BOT-BC167443  Hesperolinon breweri Mary L. Bowerman 1933-6-7 2254 Contra Costa North Peak Ridge, exposure south. Mount Diablo 1005 Comment
  UC2028268  Hesperolinon californicum Barbara Ertter 1999-6-12 16709 Contra Costa Black Hawk Ridge Road between Knobcone Point Road and NE fork of Sycamore Creek, South side of Mount Diablo. Comment
  UC692665  Hesperolinon californicum Mary L. Bowerman 1933-6-14 2279 Contra Costa Inner Black Hills w 1970; Mount Diablo Comment
  CAS-BOT-BC422499  Hesperomecon linearis Alice Eastwood 1921-4-18 10293 Contra Costa Antioch Comment
  UC725833  Hesperomecon linearis A. A. Heller 1908-4-16 8890 Contra Costa East of Antioch 22 Comment
  SEINET10972529  Heterocodon rariflorum Hall Hall 2205 Contra Costa SAN JACINTO MTNS 5300 Comment
  CDA22495  Heterotheca grandiflora D. G. Kelch, Mike Park 2008-9-1 8 .294 Contra Costa Carquinez Strait; 200 m W of Pacheco Slough, E of Martinez. Comment
Read comments
Dec 4 2011
  UCD150891  Heterotheca grandiflora James A. Neilson Jr. 1972-11-2 3678 Contra Costa Walnut Creek drainage at State Highway 4. Elevation estimated using Google Earth by label maker. 1 Comment
  UC2028022  Heterotheca sessiliflora subsp. echioides Barbara Ertter 1997-9-14 15812 Contra Costa Southwest side of Mount Diablo, Secret Trail at head of Pine Canyon. Comment
  UC1034868  Hibiscus lasiocarpos Ira L. Wiggins 1954-9-5 13121 Contra Costa levee along Bethel Isl. Bethel Isl. 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
  CAS-BOT-BC325836  Holocarpha heermannii Elsie M. Zeile 1921-11-19 s.n. Contra Costa Mt. Diablo Comment
  CDA23596  Holocarpha heermannii D. G. Kelch 2007-10-6 7 .63 Contra Costa Carquinez Strait; Fernandez Ranch. Muir Land Trust Property 4.5 km W of Rodeo. Comment
  CDA7978  Holocarpha heermannii A. G. Murdock, D. G. Kelch 2002-7-2 67 Contra Costa Carquinez Strait Region; Mt. Wanda - Martinez. Crest of Mt. Wanda on north side of main fire road. Comment
  CAS-BOT-BC325832  Holocarpha heermannii John Thomas Howell 1930-9-28 5499 Contra Costa 6.3 miles from Byron on teh Marsh Creek Road Comment
  UC615581  Holocarpha heermannii Beryl O. Schreiber 1933-10-5 935 Contra Costa Comment
  UC691541  Holocarpha heermannii Mary L. Bowerman 1930-6-3 232 Contra Costa Comment
  SJSU7098  Holocarpha macradenia D. J. Powers 1974-10-6 1001 B Contra Costa 100-300' E of Interstate Hwy 80 & 100-300 yards S of Appian Way, Pinole Comment
  CAS-BOT-BC320222  Holocarpha macradenia Walter Knight; Irja Knight 1977-9-12 3159 Contra Costa At SE corner of Appian Way and Highway I-80. Pinole Comment
  CAS-BOT-BC320224  Holocarpha macradenia Irja Knight 1979-5-3 3375 Contra Costa In Pinole in a pasture on s.e. corner of Appian Way and I-80 Comment
  UCD133198  Holocarpha macradenia David J. Powers 1974-10-6 1001 Contra Costa east of Highway 80 and 100-300 yards south of Apian Way, Pinole. 30 Comment
  RSA0033853  Holocarpha obconica Barbara Ertter 2002-11-11 18072 Contra Costa Round Valley Regional Preserve east of Mount Diablo, along Round Valley Creek/Miwok Trail. 91 Comment
  CAS-BOT-BC320249  Holocarpha obconica H. M. Hall 1930-8-7 12846 Contra Costa Vasco Road at Junction 4 miles west of Byron Comment
  RSA22274  Holocarpha obconica subsp. obconica L. S. Rose 1938-10-28 38309 Contra Costa Marsh Creek, 8 miles W of Byron. 61 Comment
  CAS-BOT-BC320323  Holocarpha virgata L. S. Rose 1941-10-16 41467 Contra Costa 2 miles west of Byron 33 Comment
  CAS-BOT-BC320327  Holocarpha virgata David D. Keck 1933-10-27 2568 Contra Costa 1.6 mi. W. of Byron, 1.4 mi. from junction with Vasco Road Comment
  CAS-BOT-BC320325  Holocarpha virgata David D. Keck 1933-11-2 2623 Contra Costa 5 mi. SE. of Clayton on Marsh Creek Road just opposite Mt. Diablo Comment
  CAS-BOT-BC324619  Holocarpha virgata John Thomas Howell 1929-9-21 4389 Contra Costa 5 miles southeast of Clayton on Marsh Creek Road Comment
  CHSC84517  Holocarpha virgata subsp. virgata John Dittes 2003-6-28 2003 -69 Contra Costa San Joaquin Valley; foothills, ca. 13.3 air-mile north by northeast of Livermore, ca. 3.4 air-miles south by southwest of Brentwood, ca. 1.3 air-miles southeast of Marsh Creek Reservoir Gauging Station. 73 Comment
Read comments
Dec 25 2008
  UCD80964  Holocarpha virgata subsp. virgata Chuck Hughes 2008-7-10 51 Contra Costa Just north of Marsh Creek at County Jail on Marsh Creek Road. 181 Comment
  POM299471  Holocarpha virgata subsp. virgata L. S. Rose 1941-10-16 41467 Contra Costa 2 miles W of Byron. 33 Comment
  UC523544  Holocarpha virgata subsp. virgata David D. Keck 1933-11-2 2620 Contra Costa 6 mi from Antioch (between Lone Tree Way and Marsh Creek Road); Horse Valley Comment
  UC691112  Holodiscus discolor Mary L. Bowerman 1930-6-26 376 b Contra Costa Clayton-Livermore Road s of Riggs Canyon Road (Mount Diablo); , Clayton-Livermore Road Comment
  CAS-BOT-BC152591  Holodiscus discolor var. discolor Mary L. Bowerman 1935-6-15 3130 Contra Costa Ridge running north from Mitchell, Pine divide at 3100 foot level - Mount Diablo 838 Comment
  UCD159359  Holozonia filipes D. S. Park 2010-6-22 144 Contra Costa Wildwood canyon, along trailside. Grassland. Abundant. 97 Comment
  JEPS100015  Hordeum brachyantherum S. O'Neil 2003-5-8 SEO 34 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA0016873  Hordeum brachyantherum H. de Forest 1930-5-7 s.n. Contra Costa Road near Morage. Comment
  CAS-BOT-BC281257  Hordeum brachyantherum subsp. brachyantherum John Thomas Howell 1933-5-14 11229 Contra Costa St. Mary's College Comment
  CAS-BOT-BC284989  Hordeum depressum Ira L. Wiggins 1930-4-17 4578 Contra Costa 1/4 mi. S. of Byron Comment
  CDA9486  Hordeum depressum D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .211 Contra Costa Byron Airport. Comment
  POM181460  Hordeum depressum I. L. Wiggins 1900-4-7 4569 Contra Costa 2 mi. east of Mountain House on road to Byron. Comment
  UC650561  Hordeum depressum Ira L. Wiggins 1930-4-17 4578 Contra Costa 1/4 m S of Byron Comment
  UC650563  Hordeum depressum Ira L. Wiggins 1930-4-17 4569 Contra Costa E of Mountain House (on road to Byron) Comment
  RSA756860  Hordeum marinum subsp. gussoneanum Barbara Ertter, Jim Jokerst, Dave Magney 1989-4-5 8121 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton; near sea level 0 Comment
  SD211511  Hordeum marinum subsp. gussoneanum Barbara Ertter, Jim Jokerst and Dave Magney 1989-4-5 8121 Contra Costa Southeast Contra Costa County: Alkalai sink West and adjacent to Clifton Court Forebay, circa15 airmiles Southwest of Stockton Comment
  UC691196  Hordeum marinum subsp. gussoneanum Mary L. Bowerman 1933-5-11 2086 Contra Costa Inner Black Hills w of saddle , Inner Black Hills w of saddle (Mount Diablo) Comment
  CAS-BOT-BC289560  Hordeum marinum subsp. gussoneanum R. E. Frenkel 1963-5-22 207 Contra Costa On Morgan Territory Road, 0.2 mile south of summit 637 Comment
  UC1950126  Hordeum marinum subsp. gussoneanum Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8140 Contra Costa alkali sink W and adjacent to Clifton Court Forebay, ca 15 airmiles SW of Stockton Comment
  CDA29160  Hordeum murinum subsp. leporinum D. G. Kelch 2006-5-7 6 .145 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  UC606740  Hordeum murinum subsp. leporinum Edward Lee 1936-4-19 1962 Contra Costa ne corner island (Red Rock, San Francisco Bay); San Francisco Bay, Red Rock, ne corner island Comment
  UC691094  Horkelia californica subsp. dissita Mary L. Bowerman 1932-11-25 1666 Contra Costa Mount Diablo, Silver Spring Comment
  JEPS112098  Horkelia californica subsp. frondosa D. G. Kelch 2005-5-1 05 .192 Contra Costa Crockett - Edwards Canyon. On shady bank 150 Comment
  UC691096  Horkelia californica subsp. frondosa Joseph Andorfer Ewan 1934-5-20 8926 Contra Costa n. side Mt. Diablo Mt. Diablo; , Russelmann Park Comment
  UC2029074  Horkelia californica var. elata Barbara Ertter 2000-7-16 17408 Contra Costa Pine Creek on WNW base of Mount Diablo. Comment
  CAS-BOT-BC532052  Horkelia californica var. frondosa Joseph Andorfer Ewan 1934-5-20 8926 Contra Costa Russelmann Park, n. side Mt. Diablo Comment
  CAS-BOT-BC532054  Horkelia californica var. frondosa V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley Comment
  UC1795762  Hydrocotyle verticillata Barbara Ertter, Lincoln Constance 1995-6-16 14260 Contra Costa East edge Dow Marsh on west side Antioch Marina, south side San Joaquin River in Delta area, mud on riprap. Comment
  UC454506  Hydrocotyle verticillata I. J. Condit 1908-8-19 Contra Costa Antioch Comment
  JEPS100042  Hypericum calycinum A. Langston 2003-6-23 AL 54 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1584689  Hypochaeris radicata Jerry Powell 1987-7-14 1506 Contra Costa Point Molate Beach Comment
  CDA7492  Hypochaeris radicata Goodwin, M. K. Bellue 1932-5-6 Contra Costa 0 Comment
  RSA762307  Hypochaeris radicata William J. Ferlatte, L. M. Moe 1970-4-27 1252 Contra Costa San Francisco Bay, Red Rock Island. Comment
  CAS-BOT-BC133498  Iris Walter Knight; Joanne Dean 1978-8-14 3152 Contra Costa Browns Island Comment
  UCD138695  Iris longipetala L. S. Kimsey 1996-5-2 s.n. Contra Costa Wildcat Canyon. Comment
  UC2070447  Iris pseudacorus Barbara Ertter with Dorothy Frantz 2001-5-10 17639 Contra Costa Diablo Foothill Regional Park, Pine Creek just south of Castle Rock Recreation Area. Comment
  UC1616163  Isoetes howellii Terry O'Brien 1997-3-19 3108 A Contra Costa Vasco Caves, approx. 1 mi W of North Vasco Road and 1 mi N of Alameda-Contra Costa county line; access from North Vasco Road ca. 3 mi N of county line 152 Comment
  UC692079  Isoetes howellii Mary L. Bowerman 1935-7-22 3187 a Contra Costa s. side Meridian Peak (w. end Hidden Pond); Mt. Diablo, Hidden Pond 518 Comment
  JEPS112432  Juglans californica var. hindsii D. G. Kelch 2003-8-13 03 .135 Contra Costa Pinole Creek 68 Comment
  UC1205990  Juglans californica var. hindsii Joseph P. Tracy 1933-12-1 13130 Contra Costa along creek between Lafayette and Moraga Comment
  UC691987  Juncus ambiguus Mary L. Bowerman 1933-4-22 1885 Contra Costa nw end of Shell Ridge (s of highway (Heather Farm), Mount Diablo); Mount Diablo, Shell Ridge Comment
  UC1607650  Juncus balticus Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10704 Contra Costa opposite of Pittsburg Marina (center of w end of Browns Island, n of Pittsburg, near confluence of Sacramento and San Joaquin Rivers); Browns Island Comment
  IRVC14055  Juncus balticus J. Lanier 1967-5-21 s.n. Contra Costa Tice Valley Comment
  CHSC116624  Juncus balticus subsp. ater Lowell Ahart; Josephine Guardino 2016-4-19 20785 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along a small drainage, west of the poor dirt road, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  JEPS112440  Juncus bufonius D. G. Kelch 2004-4-25 04 .112 Contra Costa Martinez - West: Ozol Rock and Scenic Drive West Martinez on Carquinez Dr 28 Comment
  POM300637  Juncus bufonius Mary L. Bowerman 1933-4-22 1885 Contra Costa Northwest end of Shell Ridge, south of highway (Heather Farm). Comment
  UC2028372  Juncus bufonius var. bufonius Barbara Ertter 1998-6-20 16234 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo. Alkali Pond at Wiget Lane entrance. Comment
  SBBG122838  Juncus gerardi B. Ertter, S. Matson 2003-5-31 18175 Contra Costa Pickleweed Trail W of Arch Bridge, Martinez Regional Shoreline Comment
  SD241642  Juncus gerardi subsp. gerardi Barbara Ertter, Steve Matson 2003-5-31 18175 Contra Costa Martinez Regional Shoreline, brackish marsh along Pickleweed Trail west of Arch Bridge. Comment
  UC1601775  Juncus occidentalis Jos. Burtt Davy 1897-4-17 Contra Costa Point Isabel 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
  UC2013049  Juncus occidentalis Barbara Ertter with Lisa Schultheis 1996-9-2 15274 Contra Costa South side Mount Diablo, short distance down trail to Oyster point from Blackhawk Ridge road junction. Comment
  UCD141649  Juncus occidentalis M. Wiesendanger 1926-5-1 1468 Contra Costa near Richmond. Comment
  JEPS67063  Juncus phaeocephalus var. paniculatus W. L. Jepson 1918-6-15 7675 Contra Costa Wild Cat Creek Comment
Read comments
Jul 28 2008
  JEPS67067  Juncus phaeocephalus var. paniculatus W. L. Jepson 1940-6-5 19936 Contra Costa Richmond 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
  UC1795767  Juncus phaeocephalus var. paniculatus Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14232 Contra Costa South side Mount Diablo, Sheepherder Springs complex 1/2 mile north of Curry Point, wet ground in grassland. 487 Comment
  UC521770  Juncus xiphioides Joseph Andorfer Ewan 1933-10-15 8019 Contra Costa sw slope Mt. Diablo Comment
  UC691976  Juncus xiphioides Mary L. Bowerman 1930-6-28 383 Contra Costa Canyon Nook Picnic Grounds Mount Diablo 670 Comment
  JEPS48340  Juniperus californica W. L. Jepson 2642 Contra Costa head of Mitchell Creek Mt. Diablo (near saddle of divide); , head of Mitchell Creek Comment
  UC1134276  Juniperus californica R. W. Lundh 1932-8-26 147 Contra Costa Laurel Dell Camp Mt. Diablo Mt. Diablo Quadrangle, Mt. Diablo 899 Comment
  UC486488  Juniperus californica Mrs. G. Earle Kelly 1932-7-20 Contra Costa Laurel Dell Mt. Diablo, Laurel Dell Comment
  JEPS11127  Keckiella corymbosa W. L. Jepson 1920-8-12 9073 Contra Costa very summit Mt. Diablo Comment
  UC2029004  Kickxia elatine Barbara Ertter with Michelle Lee et al. 2002-6-29 17965 Contra Costa Lower Curry Creek on east side of Mount Diablo, private property just above Morgan Territory. Comment
  SEINET186056 Image available Koeleria macrantha V. E. Long 1933-6-14 223 a Contra Costa Mt. Diablo 457 Comment
  CAS-BOT-BC273611  Koeleria pyramidata Mary L. Bowerman 1933-6-14 2274 Contra Costa Mount Diablo. Curry-Cave canyon: Ridge between two main forks, at north end of flat at upper end Comment
  JEPS3931  Lactuca virosa John Thomas Howell 1943-8-22 19310 Contra Costa near head of San Leandro Creek Canyon 243 Comment
  UC1818925  Lagophylla ramosissima Barbara Ertter, Mary Bowerman 1995-6-11 14253 Contra Costa Shell Ridge Recreation Area southeast of Walnut Creek, bank of Indian Creek above Indian Valley Pond, partial sun on Franciscan layer. 76 Comment
  CAS-BOT-BC341478  Lagophylla ramosissima L. R. Abrams 1910-10-8 4337 Contra Costa Glenn Valley, Mt Diablo 304 Comment
  CAS-BOT-BC412726  Lastarriaea coriacea Alice Eastwood 1921-4-18 10275 Contra Costa Antioch Comment
  CAS-BOT-BC337974  Lasthenia californica Alice Eastwood 1923-5-4 11688 Contra Costa Mt. Diablo Comment
  RSA55168  Lasthenia californica C. F. Baker 1903-4-28 2829 Contra Costa Marsh Creek, Mt. Diablo. Comment
  UC2027712  Lasthenia californica Barbara Ertter with Stu Garrett 1997-3-29 15528 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  UC135346  Lasthenia californica subsp. californica C. F. Baker 1903-4-28 2829 Contra Costa Marsh Creek Mt. Diablo Comment
  UC1614101  Lasthenia californica subsp. californica Charles M. Belshaw 1935-6-24 783 Contra Costa 0.5 mi. e. Grizzly Peak (n.-face Bald Peak); Bald peak Comment
  JEPS18328  Lasthenia conjugens E. L. Greene 1887-4-1 Contra Costa Antioch Comment
  UC1142637  Lasthenia conjugens Edw. L. Greene 1887-4-17 Contra Costa Antioch Comment
  CAS-BOT-BC324481  Lasthenia ferrisiae Alice Eastwood 1914-3-14 3761 Contra Costa Byron Springs Comment
  CAS-BOT-BC353334  Lasthenia fremontii K. Curran April (Year not stated). s.n. Contra Costa Suisun. Comment
  CAS-BOT-BC353336  Lasthenia fremontii Peter H. Raven; H. L. Mason; R. Ornduff; et al. 1957-4-4 10587 Contra Costa Vernal flats 3.0 miles S of Byron. Comment
  CDA8115  Lasthenia fremontii D. G. Kelch 1992-3-21 1826 -A Contra Costa 2.5 mi. SE of Byron; along RR tracks, N of junction of Holey Rd. and Byron Hwy. 0 Comment
  UC1314951  Lasthenia fremontii R. F. Hoover 1967-4-28 10512 Contra Costa Byron Hot Springs Comment
  UC650552  Lasthenia fremontii Ira L. Wiggins 1930-4-17 4579 Contra Costa .25 mi. s Byron Comment
  CAS-BOT-BC353332  Lasthenia fremontii Peter H. Raven; H. L. Mason; et al. 1957-4-4 10587 Contra Costa Vernal flats 3 miles S of Byron. Comment
  UC1598597  Lasthenia glaberrima A. D. E. Elmer 1903-5-1 4321 Contra Costa Walnut Creek Comment
  UC691500  Lasthenia glaberrima Mary L. Bowerman 1935-6-21 3153 Contra Costa s Turtle Rock Comment
  CAS-BOT-BC352925  Lasthenia glaberrima A. D. E. Elmer 1903-5-1 4321 Contra Costa Walnut Creek Comment
  CAS-BOT-BC352927  Lasthenia glaberrima A. D. E. Elmer 1903-5-1 4321 Contra Costa Walnut Creek Comment
  JEPS35366  Lasthenia glabrata subsp. glabrata W. L. Jepson 1923-4-22 Contra Costa Mt. Diablo Comment
  UC90039  Lasthenia glabrata subsp. glabrata K. Brandegee 1889-5-1 Contra Costa Antioch Comment
  CAS-BOT-BC352773  Lasthenia glabrata subsp. glabrata Mary L. Bowerman 1933-4-15 1865 Contra Costa Canyon S of Arroyo del Cerro, 1400 feet? below spring Comment
  POM301000  Lasthenia glabrata subsp. glabrata Mary L. Bowerman 1933-5-5 2000 Contra Costa Alamo Canyon, toward mouth. 305 Comment
  CAS-BOT-BC361123  Lasthenia microglossa Mary L. Bowerman 1932-3-27 1141 Contra Costa Mitchell Rock: Mount Diablo Comment
  UC697156  Lasthenia microglossa Mary L. Bowerman 1936-4-23 3405 Contra Costa Mitchell-Pine Divide, northern most point Mount Diablo 838 Comment
  UC30472  Lasthenia minor F. T. Bioletti 1892-1 Contra Costa Byron Comment
  JEPS9902  Lasthenia platycarpha Greene 1889-3-23 Contra Costa Byron Comment
  RSA138191  Lathyrus jepsonii subsp. californicus Volney Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley. Comment
  RSA406665  Lathyrus jepsonii subsp. californicus E. E. Stanford 1930-5-24 1515 Contra Costa Marsh Creek Canyon. Comment
  UC1795704  Lathyrus jepsonii var. californicus Barbara Ertter, Dale Sanders, Dan Norris 1994-3-26 12331 Contra Costa Peyton Hill east of I-680 east of Martinez, south of Waterfront Road 30 Comment
  UC2027834  Lathyrus jepsonii var. californicus Barbara Ertter 2001-5-10 17635 Contra Costa North flank of Mount Diablo, SE of Mitchell Canyon trailhead, on traversing road to Mitchell Rock Trail. Comment
  JEPS64867  Lathyrus jepsonii var. jepsonii W. L. Jepson 1937-7-2 18448 Contra Costa 0.5 mi w Crockett; Carquinez Straits Comment
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Jan 2 2016
  UCD130164  Lathyrus jepsonii var. jepsonii Stephen P. Rae 1978-9-5 s.n. Contra Costa Browns Island. In Sacramento River near Pittsburg (in known location). 2 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
  CDA27151  Lathyrus vestitus var. vestitus D. G. Kelch, A. G. Murdock 2005-3-24 5 .071 Contra Costa Carquinez Strait; Chevy s Hill. Comment
  UC15363  Lathyrus vestitus var. vestitus W. H. Brewer 1862-4-30 Contra Costa Monte Diablo Comment
  JEPS55368  Lathyrus vestitus var. vestitus W. L. Jepson 1891-6-9 13633 Contra Costa e side Berkeley Hills (at the Fish Ranch) Comment
  UC1618178  Lavatera cretica Barbara Ertter 1991-5-12 9813 Contra Costa sw corner El Cerrito (Point Isabel Regional Shoreline, on San Francisco Bay); San Francisco Bay, Point Isabel Regional Shoreline Comment
  SEINET7085230  Lavatera olbia Steven R. Hill 2010-7-19 38531 Contra Costa Residence of Kristin Yanker-Hansen, 569 Contada Circle, Danville [94526]. Coordinate Datum: WGS84/NAD83. 122 Comment
  CAS-BOT-BC323906  Layia chrysanthemoides Ira L. Wiggins 1930-4-17 4572 Contra Costa 1/4 mile S of Byron Comment
  POM181462  Layia chrysanthemoides I. L. Wiggins 1930-4-17 4572 Contra Costa 1/4 mi. S. of Byron. Comment
  POM53189  Layia chrysanthemoides C. F. Baker 1903-4-27 2903 Contra Costa Byron. Comment
  JEPS75555  Layia gaillardioides P. F. Yorks 1974-4-19 130 Contra Costa n of Briones Reservoir ca. 1.4 km s of Bear Creek Road; Hampton Road Natural Reserve 170 Comment
  UC2042770  Layia gaillardioides Barbara Ertter with Chris Thayer 1993-5-7 11706 Contra Costa Ca 1/2 mile north of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land east of Tilden Park. Comment
  UC691555  Layia gaillardioides Mary L. Bowerman 1933-4-22 1904 Contra Costa ridge w of upper end of Curry-Cave Point trail; Black Hills Comment
  CAS-BOT-BC321078  Layia glandulosa Alice Eastwood; John Thomas Howell 1936-4-19 2150 Contra Costa Antioch sand hills Comment
  UC30636  Layia glandulosa E. L. Greene 1886-5-1 Contra Costa Antioch Comment
  JEPS13426  Layia glandulosa R. F. Hoover 1937-5-14 2115 Contra Costa Comment
  RSA102175  Layia heterotricha M. K. Curran 1886-05 s.n. Contra Costa Near Antioch. Comment
  UC905616  Layia hieracioides David D. Keck 1941-6-5 5307 Contra Costa 1/4 mi w of e portal of Broadway Tunnel Fish Creek Rd.; Berkeley Hills Comment
  CAS-BOT-BC370666  Layia platyglossa H. M. Hall 1901-4-5 1750 Contra Costa Mt. Diablo near summit Comment
  POM230495  Layia platyglossa subsp. campestris Jens Clausen 1936-4-18 1174 Contra Costa Summit Mt. Diablo; trail to Devil's Pulpit. Comment
  CAS-BOT-BC274326  Leersia oryzoides Brian Atwater 1978-10-24 BA- 173 Contra Costa Between Bethel Island and Holland Tract Comment
  UC692082  Lemna minuscula Mary L. Bowerman 1933-9-9 2430 Contra Costa Mount Diablo, (spring which feeds Frog Pond) Mount Diablo Comment
  CAS-BOT-BC534639  Lemna minuta Ira L. Wiggins 1930-4-18 4607 Contra Costa Jersey Island Comment
  CDA31190  Lepechinia calycina D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  RSA248647  Lepechinia calycina Bonnie C. Templeton 1962-6-10 s.n. Contra Costa Mt Diablo. Comment
  CAS-BOT-BC88702  Lepidium acutidens Alice Eastwood 1914-3-14 3771 Contra Costa Byron 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-BC88680  Lepidium acutidens Lewis S. Rose 1956-3-19 56003 Contra Costa 2 miles southeast of Byron. 7 Comment
  UCD144312  Lepidium chalepense G. F. Hrusa; D. Crowe 1998-5-8 14374 Contra Costa Sacramento-San Joaquin River Delta. On Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. 2 Comment
  UCD146720  Lepidium chalepense G. F. Hrusa; D. Crowe 1998-5-8 14374 Contra Costa Sacramento-San Joaquin River Delta. On Dow Chemical property at Pittsburg. Adjacent to shore of San Joaquin River. 2 Comment
  UC1585845  Lepidium dictyotum Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8142 Contra Costa ca 15 air mi sw Stockton (w and adjacent to Clifton Court Forebay, se Contra Costa Co.) Comment
  JEPS73691  Lepidium dictyotum var. acutidens L. R. Heckard with Wm. Hirano and Ted Niehaus 1968-3-3 1760 Contra Costa about 3 mi se Byron (at junction of Holey Road, along Byron-Bethany road) 7 Comment
  UC518001  Lepidium dictyotum var. acutidens Lewis S. Rose 1933-3-29 33041 Contra Costa Nortonville Comment
  CDA24908  Lepidium dictyotum var. dictyotum Jim Jokerst 1989-3-29 3073 Contra Costa Byron Hot Springs area northeast of Livermore, adjacent to pipeline on terrace south of ephemeral creek. 0 Comment
  CAS-BOT-BC89766  Lepidium latipes Barrett Anderson 1987-4-29 3483 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD. 125 Comment
  JEPS53660  Lepidium latipes W. L. Jepson 1918-6-4 7594 Contra Costa near Clayton; Mt. Diablo, Donner Canyon 137 Comment
  OBI14998  Lepidium latipes Unknown 1959-4-14 1320 Contra Costa On Deer Valley Rd, 0.2 mi S of jctn with Briones Valley Rd (ca. 8 mi S of Antioch) Comment
  UC10645  Lepidium latipes F. T. Bioletti 1892-1 Contra Costa Comment
  CAS-BOT-BC89899  Lepidium nitidum Reed C. Rollins 1946-3-25 3042 Contra Costa Western slope of Mount Diablo. Comment
  POM204087  Lepidium nitidum L. S. Rose 1933-3-29 33045 Contra Costa Pittsburg Comment
  RSA34732  Lepidium nitidum R. C. Rollins 1946-3-25 3044 Contra Costa Western slope of Mount Diablo. Comment
  UC2028050  Lepidium nitidum Barbara Ertter 1998-2-15 15911 Contra Costa Shell Ridge Open Space on northwest base of Mount Diablo, roadside near Indian Creek. Comment
  JEPS111855  Lepidium nitidum var. nitidum D. G. Kelch 2003-2-7 03 .37 Contra Costa Franklin Canyon 115 Comment
  UC2027967  Lepidium pinnatifidum Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15668 Contra Costa Martinez Regional Shoreline, south edge of Carquinez Strait. Comment
  UC1949269  Leptosiphon ciliatus Barbara Ertter 1991-5-5 9781 Contra Costa Black Diamond Mines Regional Preserve S of Pittsburg, ridge E of Coal Canyon; N-facing slope Comment
  UC2028986  Leptosiphon ciliatus Barbara Ertter 2000-5-14 17009 Contra Costa Donner Canyon on north side of Mount Diablo, SW end of Falls Trail between Middle Trail and Donner Creek crossing. Comment
  UCD118881  Leptosiphon liniflorus J. M. Tucker 1963-4-12 3686 Contra Costa on west side of Holey Road, 3 miles southeast of Byron. Comment
  CAS-BOT-BC324111  Lessingia glandulifera var. glandulifera T. S. Brandegee 1883-1-1 s.n. Contra Costa Antioch Comment
  JEPS20577  Lessingia pectinata var. tenuipes R. F. Hoover 1940-11-23 4696 Contra Costa 2 mi w Byron Comment
  UC1094039  Lessingia pectinata var. tenuipes Lewis S. Rose 1955-10-17 55185 Contra Costa Antioch Comment
  JEPS78895  Leymus X multiflorus Edward Lee 1935-8-13 1616 Contra Costa Vaca Canyon; roadside Comment
  UC38162  Leymus X multiflorus J. Burtt Davy May 1898 Contra Costa Port Costa Comment
  UC790970  Leymus X multiflorus A. A. Beetle 1941-6-24 1751 Contra Costa Pt. Richmond San Francisco Bay Comment
  UCD38560  Leymus X multiflorus Beecher Crampton 1956-5-14 3424 Contra Costa 3.2 miles W of Martinez, on the road to Crockett. Above Suisun Bay. Comment
  CAS-BOT-BC283732  Leymus condensatus A. A. Beetle 1941-6-24 1751 Contra Costa Pt Richmond on San Francisco Bay Comment
  CAS-BOT-BC283734  Leymus condensatus W. A. Silveus 1938-7-5 3215 Contra Costa El Cerrito Comment
  CDA31464  Leymus triticoides D. G. Kelch 2009-5-24 9 .304 Contra Costa Carquinez Strait; S of Ozol, W/SW of Martinez. Comment
  CDA32482  Leymus triticoides D. G. Kelch 2005-6-24 5 .385 Contra Costa Carquinez Strait Region; 5th Street Prairie, Crockett. Comment
  CAS-BOT-BC272218  Leymus triticoides John Thomas Howell; Gordon H. True 1972-6-29 48928 Contra Costa Byron Hot Springs Road southeast of Byron Comment
  RSA0021082  Leymus triticoides Mary L. Bowerman 1935-6-28 3159 Contra Costa Mount Diablo. Inner Black Hills west of the meridian. 473 Comment
  UC1789153  Ligustrum Barbara Ertter, Joanne Kerbabaz and Jeff Greenhouse 2000-10-26 17547 Contra Costa Mount Diablo State Park, a single sterile young shrub at a permanent spring-fed pond (''Secret Pond'') in angle of Stage Road and lower Barbeque Road, sahded by Aesculus. Comment
  CAS-BOT-BC211110  Lilaeopsis masonii W. Knight; I. Knight 1977-5-22 s.n. Contra Costa Antioch Dunes Comment
  UCD127576  Lilaeopsis masonii Robert E. Preston 1991-10-1 604 Contra Costa Antioch, Big Break Marina, along east side of levee north of the marina. 0 Comment
  UC692005  Lilium pardalinum Mary L. Bowerman 1935-6-21 3144 Contra Costa e fork Arroyo del Cerro; Mount Diablo 289 Comment
  CDA7773  Limnobium laevigatum Dan Darling 2007-12-13 PDR# 1426144 Contra Costa Antioch, Decker Island 0 Comment
  UCD33426  Linanthus Beecher Crampton 1968-3-27 8232 Contra Costa SE corner of County, ca. 3.5 miles south of Byron. Comment
  JEPS99519  Linanthus androsaceus Mary Bowerman 1977-5-29 Contra Costa Mount Diablo. Russellmann Park. Comment
  UC691639  Linanthus bicolor Mary L. Bowerman 1931-3-29 625 Contra Costa n side, 500 ft from top Cave Point; Mount Diablo Comment
  JEPS108358  Linanthus bolanderi David Gowen 2005-4-11 228 Contra Costa Mt. Diablo State Park. Below Devils Elbow in the upper part of Rhine Canyon drainage. Comment
  UC1925900  Linanthus ciliatus Donald G. Nelson 1937-4-29 517 Contra Costa Road from Pinole S towards Alhambra Road. Comment
  JEPS108216  Linanthus ciliatus David Gowen 2005-4-26 269 Contra Costa Mt. Diablo State Park. Near serpentine area just north of Cardinet Oaks Rd. Comment
  JEPS112513  Linum bienne A. G. Murdock 2004-5-28 310 Contra Costa At west end of Refugio Valley 120 Comment
  UCR248236  Linum bienne Dean Kelch 2011-5-28 11 .537 Contra Costa Carquinez Strait Region, west of Martinez, north of end of Hillside Place 183 Comment
  UC2062459  Linum bienne Barbara Ertter 2002-5-16 17852 Contra Costa Richmond Field Station (UC-Berkeley) at end of Lark Lane. Comment
  UC198752  Linum lewisii Chesnut and Drew 1889-4-16 Contra Costa Martinez Comment
  CAS-BOT-BC430619  Lithophragma affine John Thomas Howell 1933-5-14 11280 Contra Costa Hills east of St. Mary's College Comment
  JEPS112262  Lithophragma affine A. G. Murdock 2004-4-30 265 Contra Costa Vaca Canyon 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
  UC518019  Lithophragma affine Lewis S. Rose 1933-4-17 33099 Contra Costa Walnut Creek Comment
  JEPS108396  Lithophragma affine David Gowen 2005-4-25 265 Contra Costa Mt. Diablo State Park. Prospectors Gap Rd., just east of Prospectors Gap. Comment
  UCSB10858  Lithophragma affine Hayes, Judy 1961-3-29 Contra Costa 1 mile W of Danville on Pixie Lane Comment
  UC2028180  Lithophragma bolanderi Barbara Ertter 1998-5-3 16038 Contra Costa SW fork of Pine Creek between Pine Ridge and Wall Point Ridge, southwest base of Mount Diablo. Comment
  JEPS75510  Lithophragma heterophyllum P. F. Yorks 1974-3-22 117 Contra Costa N of Briones Reservoir (ca. 1.8 km S of Bear Creek Road on Hampton Road); Hampton Road Natural Reserve Comment
  UC32010  Logfia filaginoides Harley P. Chandler 1901-4-5 963 Contra Costa Mt. Diablo Comment
  UC34597  Logfia filaginoides J. P. Tracy 1900-3-24 618 A Contra Costa Point Richmond San Francisco Bay region, Point Richmond 15 Comment
  UC1795896  Logfia gallica Barbara Ertter, Chris Thayer 1995-4-25 13992 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Devil's Slide area of Sycamore Canyon, roadside thru chaparral zone. 304 Comment
  CAS-BOT-BC342346  Logfia gallica H. L. Mason 1928-4-26 4386 Contra Costa Berkeley-Oakland Hills Comment
  UCD38198  Logfia gallica Beecher Crampton 1950-6-20 595 Contra Costa 1 mile north of Richmond. Triangle Court. Comment
  CDA15269  Lolium multiflorum G. F. Hrusa, D. Crowe 1998-5-8 14400 Contra Costa Sacramento Delta; Moist, areas within disturbed grasslands at E end of Dow Chemical property. Rare form with branched inflorescence. Perennial? Comment
  UC38784  Lolium multiflorum J. Burtt Davy 1897-9-4 4078 Contra Costa Stege Comment
  CAS-BOT-BC283394  Lolium multiflorum Mary L. Bowerman 1938-5-25 3630 Contra Costa Mount Diablo. Arroyo del Cerro, by North Rd 109 Comment
  CAS-BOT-BC283396  Lolium multiflorum R. E. Frenkel 1963-5-22 206 Contra Costa On Morgan Territory Road, 0.2 mile S of summit 637 Comment
  UC692429  Lolium perenne Mary L. Bowerman 1935-5-3 2967 Contra Costa Mount Diablo; Sloan Road 487 Comment
  CAS-BOT-BC269051  Lolium perenne Mary L. Bowerman 1935-5-3 2967 Contra Costa Mount Diablo. Sloan Road 487 Comment
  JEPS111626  Lomatium caruifolium D. G. Kelch 2005-3-25 05 .81 Contra Costa Fernandez Ranch Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak on ridge East of Pinole Park 115 Comment
  SEINET13944355 Image available Lomatium caruifolium C. F. Baker 1904-1 2800 Contra Costa Byron Comment
  UC21195  Lomatium caruifolium var. caruifolium W. H. Brewer 1862-5-20 1128 Contra Costa hill n. of coal mines on n. side of Mt. Diablo Comment
  POM132622  Lomatium dasycarpum subsp. dasycarpum H. P. Chandler 1901-4-5 982 Contra Costa Mt. Diablo. Comment
  UC691421  Lomatium dasycarpum subsp. dasycarpum Mary L. Bowerman 1932-4-27 1395 Contra Costa canyon W of Riggs Canyon (Oyster Ridge, S face); Mount Diablo 304 Comment
  RSA0029366  Lomatium dasycarpum subsp. dasycarpum Barbara Ertter, Susan D Alcamo 1994-4-24 12461 Contra Costa Mount Diablo east Walnut Creek, Bald Ridge Trail above Murchio Gap. 762 Comment
  UC106225  Lomatium macrocarpum Katharine Curran May 1885 Contra Costa Antioch Comment
  UC140639  Lomatium macrocarpum Katharine Curran May 1885 Contra Costa Antioch Comment
  UC691781  Lomatium macrocarpum Mary L. Bowerman 1931-6-2 917 Contra Costa n. of 1924 point North Peak (Mt. Diablo); Mt. Diablo Comment
  JEPS111624  Lomatium utriculatum D. G. Kelch 2005-3-24 05 .56 Contra Costa Point Pinole Southern Pt. Pinole 3 Comment
  UC21269  Lomatium utriculatum Alice Eastwood 1894-5-3 Contra Costa Antioch Comment
  UC691423  Lomatium utriculatum Mary L. Bowerman 1933-5-4 1997 Contra Costa Fossil Ridge, E end Mount Diablo Comment
  UC566798  Lomatium utriculatum H. L. Mason 1929-3-29 5138 Contra Costa above, Marsh Creek Road Clayton Comment
  CDA42192  Lonicera hispidula var. vacillans D. G. Kelch 2004-5-2 4 .167 Contra Costa Carquinez Strait Region; Edwards Canyon, Crockett. Comment
  UC1618284  Lonicera japonica Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10694 Contra Costa opposite Pittsburg Marina (in center of w end of Browns Island n of Pittsburg near confluence of Sacramento and San Joaquin Rivers); Browns Island Comment
  UC691483  Lonicera subspicata var. denudata Mary L. Bowerman 1932-10-16 1634 Contra Costa ridge e Median Ridge; Mount Diablo, Donner Canyon basin 487 Comment
  CAS-BOT-BC200900  Lotus R. E. Frenkel 1964-2-5 356 Contra Costa On California Hwy. 21, Market Plaza Center, Alamo 79 Comment
  CHSC75087  Lotus corniculatus Roger Thom 1987-6-1 27 Contra Costa California State University Hayward's Contra Costa Campus. 3100 Oak Park Blvd. Pleasant Hill. 30 Comment
  JEPS99996  Lotus corniculatus A. Langston 2003-7-2 AL 58 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA45488  Lotus corniculatus J. C. Roos 1948-9-6 4023 Contra Costa San Joaquin St., Antioch. Comment
  UC692569  Lotus crassifolius var. crassifolius Mary L. Bowerman 1931-5-16 862 Contra Costa Meridian Peak summit Mount Diablo Comment
  UC864815  Lotus humistratus Lewis S. Rose 1941-5-15 41234 Contra Costa Mt. Diablo, w slope Mt. Diablo 396 Comment
  UC15645  Lotus micranthus W. H. Brewer 1862-5-26 1173 Contra Costa Mt. Diablo 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
  UC692538  Lotus scoparius Mary L. Bowerman 1932-9-24 1589 Contra Costa ridge running w from Twin Peaks; Mount Diablo 335 Comment
  JEPS55877  Lotus strigosus Chesnut and Drew 1890-4-18 Contra Costa Antioch Comment
  CDA27342  Lotus wrangelianus D. G. Kelch, A. G. Murdock 2003-4-3 3 .356 Contra Costa Carquinez Strait Region; Cummings Skyway. South of Cummings Skyway and Crockett Boulevard. Comment
  JEPS100070  Lotus wrangelianus G. Smick 2003-3-13 GAS 87 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA498728  Lotus wrangelianus H. de Forest 1930-3-28 s.n. Contra Costa Mt. Diablo Comment
  UC692263  Lotus wrangelianus Mary L. Bowerman 1933-5-9 2045 Contra Costa Stage Road Mount Diablo 853 Comment
  UC692325  Lotus wrangelianus Mary L. Bowerman 1933-5-25 2189 Contra Costa w end of s face Osyter Ridge; Mount Diablo 396 Comment
  UC1051078  Luculia intermedia N. Floy Bracelin 1944-10-29 2821 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC478119  Ludwigia Walter Knight; Irja Knight 1978-10-8 3321 Contra Costa Jersey Island Road, one mile north of Dutch Slough Comment
  CAS-BOT-BC201364  Lupinus albifrons var. albifrons Alice Eastwood 1915-5-30 4510 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC201375  Lupinus albifrons var. albifrons James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC201377  Lupinus albifrons var. albifrons James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  POM10982  Lupinus albifrons var. albifrons C. F. Baker 1903-4-25 2823 Contra Costa Antioch. Comment
  CAS-BOT-BC201373  Lupinus albifrons var. albifrons Charles Piper Smith 1947-8-8 47709 Contra Costa Crow Creek Canyon Road - San Ramon Summit Comment
  RSA697989  Lupinus albifrons var. albifrons J. Vlahos 1934-8-1 s.n. Contra Costa Contra Costa Hills Comment
  UC1948937  Lupinus arboreus William J. Ferlatte, L. Maynard Moe 1970-4-27 1262 Contra Costa San Francisco Bay: Red Rock Island 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
  JEPS112402  Lupinus bicolor Dean G. Kelch and Andrew G. Murdock 2005-4-24 05 .166 Contra Costa Franklin Canyon; County: Contra Costa; Franklin Canyon, Contra Costa County, CA. Collier Hill. West Carbon. Comment
  UC1076228  Lupinus bicolor Herbert L. Mason 1931-4-5 5821 Contra Costa Antioch sandhills Comment
  UC1300886  Lupinus bicolor Helen K. Sharsmith 1963-4-7 5292 Contra Costa near Oakley (s of Antioch); , near Oakley 15 Comment
  UC73195  Lupinus bicolor Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  UC762917  Lupinus bicolor R. F. Hoover 1935-3-10 306 Contra Costa Antioch Comment
  SEINET11268248  Lupinus bicolor Barbara Ertter 1998-4-4 15944 Contra Costa Northwest of Mount Diablo, SE of Indian Valley School.; 0 Comment
  RSA203627  Lupinus bicolor subsp. tridentatus J. T. Howell 1933-5-14 11250 Contra Costa Hills east of St. Marys college Comment
  CAS-BOT-BC187856  Lupinus chamissonis John Thomas Howell 1932-9-17 10757 Contra Costa Clay Flats, San Pablo Avenue, Richmond Comment
  POM10925  Lupinus densiflorus var. aureus Chestnut, E. R. Drew 1889-4-18 s.n. Contra Costa Brentwood. Comment
  UC1613951  Lupinus formosus var. formosus Charles M. Belshaw 1935-6-24 1033 Contra Costa Sobrante Hills Comment
  RSA0064357  Lupinus latifolius Daisie Huang 2006-7-18 06071805 Contra Costa Ppinehurst Road above Moraga Road. 156 Comment
  UC15915  Lupinus luteolus Mrs. T. J. Maynard 1897-7-28 Contra Costa Walnut Creek Comment
  UCR12299  Lupinus microcarpus 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
  JEPS25129  Lupinus microcarpus var. densiflorus G. Thomas Robbins 1959-4-18 3992 Contra Costa along Western Drive near and n Pt. Richmond (western base of Potrero Hills, Richmond); western base of Potrero Hills, n of Pt. Richmond 4 Comment
  OBI59407  Lupinus microcarpus var. densiflorus Barbara Ertter, Elizabeth Neese 1988-4-24 7450 Contra Costa Black Diamond Mines Regional Preserve SW of Antioch, N of E-W part of Black Diamond Trl Comment
  UC201012  Lupinus microcarpus var. densiflorus Katharine Brandegee 1918-6-16 Contra Costa near Virgorit Powder Works; near Vigorit Powder Works Comment
  UC201015  Lupinus microcarpus var. densiflorus Katharine Brandegee 1918-6-16 Contra Costa near Virgorit Powder Works; near Vigorit Powder Works Comment
  JEPS65467  Lupinus microcarpus var. microcarpus W. L. Jepson 1921-5-22 9214 Contra Costa Mt. Diablo; Mt. Diablo, s slope 609 Comment
  UC201008  Lupinus microcarpus var. microcarpus Katharine Brandegee 1918-6-16 Contra Costa Richmond Annex; El Dorado St. Comment
  UC201028  Lupinus microcarpus var. microcarpus Katharine Brandegee June 1918 Contra Costa Richmond Annex 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
  UC126998  Lupinus nanus J. Burtt Davy 1897-4-17 Contra Costa Point Isabel Comment
  UC2027717  Lupinus pachylobus Barbara Ertter with Stu Garrett 1997-3-29 15522 a Contra Costa West side Mount Diablo, Burma Road above North Gate Road. Comment
  UC2070481  Lupinus pachylobus Barbara Ertter 2003-3-28 18132 Contra Costa Round Valley Regional Preserve, upper Hardy Canyon. Comment
  UCD109334  Lupinus pachylobus A. A. Heller 1913-12-9 11150 Contra Costa hills eight miles north of Oroville near the western base of Table mountain. The type was collected by Greene on the 'Briones Hills, east of San Pablo Creek, Contra Costa County, California. Comment
  SEINET10486146  Lupinus polycarpus Frenkel 1964-3-27 FRENKEL 431 Contra Costa .4 mi n of atsf rr crossing on giant road, richmond. 15 Comment
  UC614849  Lupinus succulentus Beryl O. Schreiber 1932-3-27 153 Contra Costa near Midway; near Midway Comment
  UCSB11258  Lupinus succulentus Hayes, Judy 1961-3-30 Contra Costa South Gate of Mount Diablo State Park 182 Comment
  UC691941  Luzula comosa Mary L. Bowerman 1931-2-28 524 Contra Costa n slope Rock City Ridge (= Fossil Ridge, Mount Diablo, near Rock City); Mount Diablo, Rock City Ridge nr Rock City, = Fossil Ridge Comment
  HSC14134  Luzula comosa Greg Bos 1963-3-9 34 Contra Costa Albany Hill 12 Comment
  JEPS67204  Luzula macrantha W. L. Jepson 1943-4-24 20761 Contra Costa Vicinity San Francisco Bay, Oakland Hills, Moraga Ridge Comment
Read comments
Jan 25 2008
  UC2062431  Luzula macrantha Barbara Ertter with David Gowen 2013-4-9 21309 Contra Costa Mount Diablo State Park southeast of Walnut Creek, Sulfur Spring/Devils Slide Trail southeast of Curry Point. Comment
  CAS-BOT-BC441217  Luzula macrantha H. L. Mason 1917-3-19 59 Contra Costa Lake Temescal Comment
  CDA5756  Lycium chinense T. C. Fuller 1964-11-6 12810 Contra Costa Knightsen. 0 Comment
  CDA5759  Lycium chinense T. C. Fuller 1964-11-6 12810 Contra Costa Knightsen. 0 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
  UC692633  Lythrum californicum Mary L. Bowerman 1932-11-26 1672 Contra Costa on n side of road between Sheep Camp Spring and Boulevard Spring (Mount Diablo, Patens Spring); Mount Diablo, Patens Spring Comment
  RSA0014823  Lythrum californicum David Gowen 2006-8-9 660 Contra Costa Mount Diablo State Park at Lower Moses Rock Spring. Comment
  JEPS111529  Lythrum hyssopifolia D. G. Kelch 2005-5-5 05 .213 Contra Costa Point Pinole - Giant Marsh 3 Comment
  JEPS45984  Lythrum hyssopifolia W. L. Jepson 1940-6-5 19933 Contra Costa Richmond Comment
  RSA0015854  Lythrum hyssopifolia Mary L. Bowerman 1932-8-27 1522 Contra Costa Spring south of Turtle Rock. Comment
  CDA9489  Lythrum tribracteatum D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .214 Contra Costa Byron Airport. Comment
  UC697172  Madia elegans Mary L. Bowerman 1933-5-17 2106 Contra Costa Curry Canyon brance s of Olafsons' barn Mount Diablo 289 Comment
  JEPS99498  Madia elegans Mary Bowerman 1979-5-12 Contra Costa Mount Diablo. North Peak trail between Devil's Pulpit & Prospectors Gap. Comment
  UC1952810  Madia elegans Barbara Ertter with Christopher Davidson 2010-9-1 20569 Contra Costa lower Donner Canyon on north base of Mount Diablo Comment
  UC2028300  Madia elegans Barbara Ertter, Susan D'Alcamo 1998-6-12 16191 Contra Costa North Peak Trail south of Prospectors Gap on east side of Mount Diablo summit. Comment
  UC691552  Madia elegans Mary L. Bowerman 1933-5-19 2144 Contra Costa Sulphur Springs Canyon, e fork Mount Diablo 457 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
  UC691767  Madia gracilis Mary L. Bowerman 1933-5-17 2104 Contra Costa branch of Curry Canyon due s Olafson's barn (w-facing bank just n of first fork of canyon); Mount Diablo 289 Comment
  SD8608  Madia radiata Katherine Curran Unknown Contra Costa Antioch Comment
Read comments
Jan 9 2007
  UC89534  Madia radiata M. K. Curran May 1889 Contra Costa Antioch Comment
  UC2029067  Maianthemum stellatum Barbara Ertter 2000-7-29 17437 Contra Costa Donner Basin on north side of Mount Diablo, Middle Trail below Falls Trail junction, at crossing of W Fork Donner Creek, with Berberis, shaded, surface water. Comment
  UC185544  Malacothamnus fremontii Katharine Brandegee May 1883 Contra Costa Base of Mt. Diablo Comment
  UC18798  Malacothamnus fremontii Edw. L. Greene 1892-6-20 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC204092  Malacothamnus hallii Walter Knight; Irja Knight; Mary L. Bowerman 1969-6-4 2620 Contra Costa North Road, Mt. Diablo. East side of road 259 Comment
  CAS-BOT-BC204096  Malacothamnus hallii John Thomas Howell; T. H. Kearney 1950-7-5 26634 Contra Costa On North Road, Mt. Diablo 259 Comment
  CAS-BOT-BC345370  Malacothrix clevelandii Brandegee No date on label s.n. Contra Costa Antioch Comment
  JEPS36614  Malacothrix coulteri R. F. Hoover 1935-3-10 382 Contra Costa Kirker Pass Comment
  UC2032804 Image available Malva pseudolavatera Doran, Andrew Scott 2012-3-20 674 Contra Costa Brooks island loading dock, North side of island. 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
  UC871380  Malvella leprosa Lewis S. Rose 1938-10-28 38310 Contra Costa Byron 3 Comment
  OBI12334  Malvella leprosa Robert F. Hoover 1966-8-31 9944 Contra Costa 1.5 mi E of Danville on Tassajara rd Comment
  CHSC46894  Marah oregana R. A. Schlising 1964-4-14 2704 Contra Costa Berkeley/Oakland Hills. Comment
  UC635484  Meconella oregana Herbert L. Mason 1927-4-16 3666 Contra Costa Wild Cat Canyon Berkeley Hills Comment
  CDA29123  Medicago polymorpha D. G. Kelch 2006-5-7 6 .151 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  JEPS73599  Medicago polymorpha L. R. Heckard 1971-4-22 2495 Contra Costa e of Pinole (near Highway 80 crossing) Comment
  JEPS127048  Medicago polymorpha var. polymorpha Lowell Ahart, Josephine Guardino 2016-4-19 20762 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  CAS-BOT-BC271222  Melica californica Mary L. Bowerman 1932-4-16 1349 Contra Costa Eagle Point, Mount Diablo Comment
  CAS-BOT-BC271224  Melica californica Mary L. Bowerman 1935-4-22 2883 Contra Costa Ridge west of Pioneer Road west of Stage Road, Mount Diablo 853 Comment
  POM300625  Melica californica Mary L. Bowerman 1935-5-1 2941 Contra Costa North road 4.4 miles from North Gate. Mount Diablo. 396 Comment
  RSA720797  Melica californica Mary L. Bowerman 1991-5-21 s.n. Contra Costa Mount Diablo. Jim White trail (Deer Flat Road) South side of Juniper-Moses Rock Trail near Deer Flat junction. Comment
  UC691188  Melica californica Mary L. Bowerman 1933-5-18 2124 Contra Costa Blackberry Spring; Mount Diablo Comment
  CAS-BOT-BC281431  Melica imperfecta D. E. Breedlove 1970-4-18 17433 Contra Costa At the N edge of Lafayette above Laurel Drive 243 Comment
  SEINET10926310  Melica imperfecta var. flexuosa Virginia E. Long 1933-6-14 Long 221 a Contra Costa Mt. Diablo. On slope S.E.-E. along first west fork from Curry Creek trail. 335 Comment
  CAS-BOT-BC262506  Melica torreyana John Thomas Howell 1933-5-14 11257 Contra Costa Hills east of St. Mary's College Comment
  JEPS75104  Melica torreyana W. L. Jepson 1918-6-5 7600 Contra Costa Donner Canyon; Mt. Diablo 533 Comment
  JEPS97557  Melica torreyana R. D. Stone 1980-7-13 270 Contra Costa Huckleberry TrailNE of intersection of Skyline Blvd. and Snake Rd. Oakland Hills, near Alameda-Contra Costa county line 396 Comment
  RSA762303  Melica torreyana William J. Ferlatte, L. M. Moe 1970-4-27 1228 Contra Costa San Francisco Bay, Red Rock Island. Comment
  UC691166  Melica torreyana Mary L. Bowerman 1933-6-3 2235 Contra Costa summit Meridian Pk (Ranson Pt. trail); Mt. Diablo Comment
  UC1950128  Melica torreyana Barbara Ertter with John Little 1989-4-2 8111 Contra Costa Hillside Park in El Cerrito, on steep W-facing slope Comment
  CDA15238  Melilotus indicus G. F. Hrusa, D. Crowe 1998-5-8 14369 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg. Comment
  CHSC116633  Melilotus indicus Lowell Ahart; Josephine Guardino 2016-4-19 20801 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Below the high water line of Los Vaqueros Reservoir, 1.4 miles (air) northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  CHSC21641  Melilotus indicus Willis Ball 1975-3-2 465 Contra Costa Contra Loma Regional Park. In area #4. In sand on beach on e side of lake 70 yds s of dam. 30 Comment
  POM181458  Melilotus indicus I. L. Wiggins 1930-4-18 4599 Contra Costa Jersey Island Comment
  UC692280  Melilotus indicus Mary L. Bowerman 1931-4-4 637 Contra Costa 2 mi by road from west entrance (= North Gate); Mount Diablo Comment
  JEPS25238  Melissa officinalis G. Thomas Robbins 1959-8-1 4115 Contra Costa ca. 1 1/2 mi. s.e. St. Marys College (Las Trampas Creek); Las Trampas Creek 182 Comment
  UC1619954  Mentha spicata Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10718 Contra Costa Browns Isl. n Pittsburg (near confluence of Sacramento & San Joaquin rivers, w.-most point opposite Pittsburg marina); Browns Isl. Comment
  JEPS111949  Mercurialis ambigua D. G. Kelch 2004-4-3 04 .44 Contra Costa Crockett - Edwards Canyon Rare weed at nursery at Edwards Creek Staging Area (EBRPD) near barn. 24 Comment
Read comments
Jun 14 2011
  CDA23915  Mesembryanthemum nodiflorum D. G. Kelch 2006-7-14 6 .327 Contra Costa Carquinez Strait; Along Marine Vista Ave immmediately west of Pacheco Slough. East of Martinez. 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
  JEPS40628  Micropus californicus var. californicus W. L. Jepson 1923-4-22 9878 Contra Costa Mt. Diablo Comment
  UC35594  Micropus californicus var. californicus Brewer 1862-4-30 1015 Contra Costa Walnut Creek, camp 69 Comment
  UC912408  Micropus californicus var. californicus Herbert L. Mason 1929-3-29 5129 Contra Costa Marsh Creek Road 2 mi e Clayton; Marsh Creek Road Comment
  CAS-BOT-BC348649  Micropus californicus var. subvestitus John Thomas Howell 1930-4-22 4746 Contra Costa Wildcat Canyon Comment
  UCSC007286  Micropus californicus var. subvestitus Randall Morgan 2010-5-21 5027 Contra Costa Dan Cook Canyon trail, Mount Diablo Comment
  UCSC007192  Microseris Randall Morgan 1989-5-5 1588 Contra Costa Mitchell Cyn trail, W entrance, Mount Diablo Comment
  CAS-BOT-BC348884  Microseris douglasii subsp. douglasii A. A. Heller 1908-4-17 8901 Contra Costa Hills three miles south of Antioch 18 Comment
  CAS-BOT-BC348886  Microseris douglasii subsp. douglasii Mary L. Bowerman 1933-5-8 2012 Contra Costa Mount Diablo. Fossil Ridge near crest, on north side by side road Comment
  CAS-BOT-BC348890  Microseris douglasii subsp. douglasii Alice Eastwood 1914-3-14 3800 Contra Costa Byron Springs Comment
  JEPS25387  Microseris douglasii subsp. douglasii Rimo Bacigalupi with G. T. Robbins and Francia Chisaki 1959-4-14 7000 Contra Costa along Lone Tree Way 2 1/2 mi se Antioch (just e of Antioch Airport) 56 Comment
  UC691460  Microseris douglasii subsp. douglasii Mary L. Bowerman 1931-4-11 690 Contra Costa Pine Canyon Mount Diablo 121 Comment
  RSA720815  Microseris douglasii subsp. douglasii Barbara Ertter, Dale Sanders, Dan Norris 1994-3-26 12336 -a Contra Costa Peyton Hill east of I-680 east of Martinez, south of Waterfront Road Comment
  UC1055920  Mimetanthe pilosa N. Floy Bracelin 1944-9-9 2799 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  JEPS53926  Mimulus arvensis Olive Dyer 1937-5-18 324 Contra Costa C.C.C. Camp (back of) Wildcat Canyon, near Berkeley Comment
  HSC90665  Mimulus aurantiacus var. aurantiacus D. M. Thompson 1992-6-3 1107 Contra Costa SW base of Mt. Diablo, E of Danville. 2.6 mi. NE of Blackhawk and Diablo Rds. along Mt. Diablo Scenic Blvd. and South Gate Rd. 378 Comment
  UC27116  Mimulus douglasii H. M. Hall 1901-3-8 1632 Contra Costa Bollinger Creek San Francisco Bay Region Comment
  SEINET3159684  Mimulus latidens L. S. Rose 1940-4-11 40184 Contra Costa 3 miles W of Byron. 30 Comment
  JEPS116944  Mimulus latidens David Gowen 2008-4-16 862 Contra Costa Just south of parking area for Black Diamond Mines Regional Preserve on Frederickson Road. Comment
  UC886241  Mimulus microphyllus Lewis S. Rose 1941-3-27 41064 Contra Costa 2 mi w Byron 60 Comment
  UC691740  Mimulus nasutus Mary L. Bowerman 1933-4-9 1834 Contra Costa w fork Dannor Canyon; Mount Diablo 243 Comment
  UC725862  Mimulus nasutus A. A. Heller 1942-4-12 Contra Costa 2 mi n Blue Tent Creek Comment
  CAS-BOT-BC388584  Minuartia douglasii Alice Eastwood 1915-5-30 4512 Contra Costa Mt. Diablo Comment
  JEPS51443  Minuartia douglasii W. L. Jepson 1931-3-21 15712 Contra Costa Grizzly Peak; face, s slope, 600 ft below top 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
  UC1818898  Minuartia pusilla Barbara Ertter, Mary Bowerman et al. 1995-5-7 14064 Contra Costa Three-Springs Trail on NE side of Mount Diablo SE of Clayton, small serpentine patch at road junction Comment
  JEPS108214  Moehringia macrophylla David Gowen 2005-4-25 266 Contra Costa Mt. Diablo State Park. North Peak Trail, ca 1/4 mile south of Prospectors Gap. Comment
  RSA0033764  Mollugo verticillata Barbara Ertter 2005-8-18 18635 Contra Costa SE side of San Pablo Reservoir in East Bay Hills, east of San Pablo Dam Road between San Pablo and Orinda, access between HQ and boat launching (reservoir way down this year while being drained for seismic work on dam). Comment
  CAS-BOT-BC221677  Monardella douglasii A. D. E. Elmer 1903-7-1 4544 Contra Costa Mount Diablo Comment
  CAS-BOT-BC220509  Monardella villosa Katharine Brandegee 1907-7-4 s.n. Contra Costa Martinez Comment
  CAS-BOT-BC220512  Monardella villosa John Thomas Howell 1929-7-7 4324 Contra Costa On northern slope near south end of Carquinez Bridge 45 Comment
  JEPS100054  Monardella villosa subsp. villosa G. Smick 2003-6-6 GAS 215 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS111667  Monolopia major C. Thayer, J. Dunne 1997-3-27 Contra Costa 91 Comment
  UC618928  Monolopia major R. F. Hoover 1938-3-25 2899 Contra Costa Lone Tree Valley Comment
  UC691684  Monolopia major Mary L. Bowerman 1932-4-27 1365 Contra Costa ridge w Riggs Canyon (s-face of Oyster Ridge); Mount Diablo, Oyster Ridge Comment
  UCD134571  Monolopia major Mrs. Saunders 1925-3-21 s.n. Contra Costa near Byron. Comment
  JEPS73689  Montia fontana L. R. Heckard with Wm. Hirano and Ted Niehaus 1968-3-5 1758 Contra Costa about 3 mi se of Byron (at junction of Holey Road, along Byron-Bethany Road) 7 Comment
  CAS-BOT-BC514197  Muilla maritima Alice Eastwood 1914-3-14 3788 Contra Costa Byron Springs Comment
  CAS-BOT-BC83285  Myosurus minimus M. K. Curran 1884-1-1 s.n. Contra Costa Near Antioch. Comment
  CAS-BOT-BC83294  Myosurus minimus Peter H. Raven; D. Stone; H. L. Mason; R. Ornduff; et al. 1957-4-4 10582 Contra Costa 3.0 miles south of Byron. Comment
  UC1101334  Myosurus minimus Herbert L. Mason 1952-4-26 14268 Contra Costa 3.5 mi s of Byron Comment
  UC1738102  Myosurus minimus D. E. Stone 1957-4-4 70 B Contra Costa 1 mi S of Byron ( on State 4) Comment
  UC1738111  Myosurus minimus D. E. Stone 1957-3-15 14 -14 Contra Costa on road to Herdlyn, 3 mi S of Byron Comment
  SEINET5718492 Image available Myosurus minimus Roman Gankin 1958-1 s.n. Contra Costa Ca. 3 miles south of Byron.; Byron Comment
  UCD96307  Myosurus minimus H. L. Mason 1952-4-14 14263 Contra Costa 3.5 miles south of Byron. Comment
  UCD96601  Myosurus minimus D. E. Stone 1957-4-4 70 B Contra Costa On State 4, 1 mile south of Byron. Comment
  UC2028279  Narcissus pseudonarcissus Barbara Ertter with Laura Fujii 1999-3-7 16485 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, near Alvarado Staging area at NW end of park, along hiking road. Comment
  UC1133134  Nassella cernua C. M. Belshaw 1936-5-9 2083 Contra Costa 1/2 mi n Nortonville (Plot 14); Mt. Diablo Comment
  UC692291  Nassella lepida Mary L. Bowerman 1935-5-22 3060 Contra Costa saddle w Twin Peaks (Eagle POint Ridge); Mount Diablo 441 Comment
  CAS-BOT-BC259905  Nassella lepida Mary L. Bowerman 1932-4-27 1387 Contra Costa Mount Diablo. Oyster Ridge, canyon W of Riggs Canyon 335 Comment
  CAS-BOT-BC260127  Nassella pulchra A. A. Beetle 1941-3-28 1718 Contra Costa Orinda Comment
  JEPS73768  Nassella pulchra R. F. Hoover 1936-3-19 807 Contra Costa Byron Hot Springs Comment
  UC691269  Nassella pulchra Mary L. Bowerman 1933-5-8 2030 Contra Costa n Rock City (s-facing slope); Mount Diablo Comment
  UCD87531  Nassella pulchra Frank W. Gould 1941-4-20 1281 Contra Costa Near Richmond. Comment
  UC2042987  Navarretia intertexta subsp. intertexta Barbara Ertter with Alan Prather 2003-6-7 18206 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, shortcut between Coyote Trail and Stone Corral Trail. Comment
  UC691606  Navarretia mellita Mary L. Bowerman 1931-6-2 910 Contra Costa Gregory Ranch Road Mount Diablo Comment
  SEINET11268197  Navarretia mellita Barbara Ertter 1998-12-6 16472 Contra Costa Southwest side of Mount Diablo, Wall Point Road just north of Rock City.; 0 Comment
  UCD48584  Navarretia mellita H. L. Mason 1945-6-12 12588 Contra Costa Ridge south east of Mount Diablo near summit of road up Marsh Creek, Contra Costa County, California. Comment
  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
  UC106833  Navarretia pubescens K. Brandegee 1892-6-9 Contra Costa Martinez Comment
  CAS-BOT-BC233584  Navarretia pubescens John Thomas Howell 1942-7-19 17041 Contra Costa Near Deer Flat, Mount Diablo Comment
  UC2042980  Navarretia pubescens Barbara Ertter with Joanne Kerbavaz 2000-8-20 17496 Contra Costa South side Mount Diablo, across road from Curry Point trailhead. Comment
  JEPS75501  Navarretia squarrosa P. F. Yorks 1975-6-29 462 Contra Costa ca 2 km s Bear Creek Road (on Hampton Road, n of Briones Reservoir); Hampton Road Natural Reserve 200 Comment
  UCD36028  Navarretia squarrosa Beecher Crampton 1949-6-26 474 Contra Costa Contra Cost County, between Pinole and San Pablo, along US Highway 40, above Garrity Creek. 30 Comment
  UC106831  Navarretia viscidula K. Brandegee Contra Costa Antioch Comment
  UC23887  Navarretia viscidula Edw. L. Greene 1892-6-19 Contra Costa Walnut Creek Comment
  SEINET3558412 Image available Nemophila divaricata Lewis S. Rose 1934-3-21 34062 Contra Costa 3 miles east of Clayton. Comment
  JEPS49756  Nemophila heterophylla Rimo Bacigalupi, and Alice Howard, and Paul Hutchison 1967-3-29 9220 Contra Costa on w slope Las Trampas Ridge Upper reaches Bolinger Canyon, w slope Las Trampas Ridge (Upper reaches of Bolinger Canyon) 381 Comment
  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
  UC691698  Nemophila heterophylla Mary L. Bowerman 1930-6-10 308 Contra Costa summit Mount Diablo; Mount Diablo Comment
  POM196037  Nemophila heterophylla R. Raven 1929-3-31 s.n. Contra Costa Marsh Creek Canyon. Comment
  POM289447  Nemophila heterophylla Lyman Benson 1931-3-18 2661 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 Comment
  SEINET4080336  Nemophila heterophylla M. W. Garcia 1960-1 60070 Contra Costa Near drinking fountain on Mount Diablo. Lower Terrace Camp. 609 Comment
  UC1377696  Nemophila menziesii W. J. Dress 1951-3-17 3064 Contra Costa w Orinda; w of Orinda Comment
  UC24234  Nemophila menziesii J. Burtt Davy 1895-4-7 875 Contra Costa Antioch Comment
  UC67148  Nemophila menziesii Harley P. Chandler 1901-4-5 970 Contra Costa Mt. Diablo Comment
  CHSC116618  Nemophila menziesii var. menziesii Lowell Ahart; Josephine Guardino 2016-4-19 20797 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along south side of road exit at Los Vaqueros Reservoir Marina, 2.3 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  UC1084399  Nuttallanthus texanus G. Thomas Robbins 1937-4-17 132 Contra Costa near Point Richmond Comment
  JEPS77015  Oemleria cerasiformis Robert M. Lloyd 1963-3-17 2142 Contra Costa 0.5 mi e Grizzly Peak Road intersection with Skyline Drive (on Skyline Drive (across from 7090 Skyline Drive), Huckleberry trail) Comment
  UC1128078  Oemleria cerasiformis N. French 1933-3-13 36 Contra Costa San Pablo Creek San Francisco Quad. (above Sheldon School) 91 Comment
  UC691108  Oemleria cerasiformis Mary L. Bowerman 1931-5-21 891 Contra Costa Curry Cave Point trail Mount Diablo (just above stream bed on w side) Comment
  CAS-BOT-BC140362  Oemleria cerasiformis Volney Rattan 1883-4-1 s.n. Contra Costa Martinez Comment
  CDA38497  Oenanthe sarmentosa D. G. Kelch 2003-8-13 3 .1 Contra Costa Carquinez Strait Region; Martinez Marsh. 0 Comment
  CDA38500  Oenanthe sarmentosa A. G. Murdock 2004-6-4 324 Contra Costa Carquinez Strait Region; Pecheco Marsh. Comment
  JEPS111606  Oenanthe sarmentosa D. G. Kelch 2003-8-13 03 .100 Contra Costa Martinez Marsh 0 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
  POM355601  Oenothera deltoides subsp. cognata H. de Forest 1930-4-6 s.n. Contra Costa Near mouth of San Joaquin River Comment
  CAS-BOT-BC171590  Oenothera deltoides subsp. howellii J. H. Thomas 1949-4-19 314 Contra Costa Antioch sand dunes. Comment
  CAS-BOT-BC171598  Oenothera deltoides subsp. howellii Lewis S. Rose 1933-4-17 33088 Contra Costa Antioch Comment
  RSA34666  Oenothera deltoides subsp. howellii P. A. Munz 1947-10-8 12201 Contra Costa Sand dunes east of Antioch 8 Comment
  UC763071  Oenothera deltoides subsp. howellii R. F. Hoover 1937-5-14 2112 Contra Costa Antioch sand-dunes Comment
  CAS-BOT-BC171586  Oenothera deltoides subsp. howellii W. M. Klein 1958-6-9 433 Contra Costa Sandhills north of Antioch along the San Joaquin River channel. 1 Comment
  RSA119418  Oenothera deltoides subsp. howellii William M. Klein 1958-6-9 434 Contra Costa Sandhills N of Antoch, along the San Joaquin River Channel. 2 Comment
  RSA119436  Oenothera deltoides subsp. howellii William M. Klein 1958-6-9 433 Contra Costa Sandhills N of Antoch, along the San Joaquin River Channel. 2 Comment
  RSA0004532  Oenothera deltoides var. howellii Alice Eastwood, J. T. Howell 1936-4-19 2147 Contra Costa Sand dunes at Antioch Comment
  JEPS25159  Oenothera elata subsp. hookeri G. Thomas Robbins with John Weiler''G. Thomas Robbins (with John Weiler) 1959-5-23 4030 Contra Costa On low site at the northwest edge of Brooks Island San Francisco Bay, Richmond. 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
  CAS-BOT-BC502761  Orobanche bulbosa A. D. E. Elmer 1903-6-1 5097 Contra Costa Mount Diablo Comment
  UC444919  Orobanche californica subsp. feudgei T. S. Brandegee June 1884 Contra Costa Antioch. Comment
  JEPS127850  Orobanche fasciculata Adam C. Schneider 2014-5-15 553 Contra Costa Mt. Diablo State Park. Above Murchio Gap on Bald Ridge Trail Comment
  UC27879  Orobanche fasciculata State Survey 1124 Contra Costa Mt. Diablo. Comment
  UC27898  Orobanche uniflora subsp. occidentalis J. Burtt Davy 1895-4-13 1004 Contra Costa Lafayette. Comment
  UC27900  Orobanche uniflora subsp. occidentalis W. H. Brewer 1862-5-23 1152 Contra Costa SE of Mount Diablo. Comment
  UC691747  Orobanche uniflora subsp. occidentalis Mary L. Bowerman 1935-5-18 3029 Contra Costa Mount Diablo. North of the large summit parking area. Exposure northeast. Comment
  CAS-BOT-BC502956  Orobanche vallicola Paul F. Covel 1938-7-1 1470 Contra Costa Summit Mt. Diablo Comment
  RSA516599  Orthocarpus densiflorus R. C. Bacigalupi 1956-5-11 5640 Contra Costa Between State Hwy 4 and (Franklin Canyon Rd) Santa Fe Ry.[RR] right-of-way, 1/4 mile E of jct of this road with US 40, 1.3 miles E of Pinole. 23 Comment
  SEINET3840906  Oxalis carnosa Unknown 1976-3-25 2117 Contra Costa International Succulent Institute, 10 Corte Sombrita, between Maraga and Orinda Comment
  UC2029047  Oxalis pes-caprae Barbara Ertter with Linda Vorobik 2000-1-9 16891 Contra Costa Las Trampas Regional Wilderness in East Bay Hills west of Danville, edge of woodland behind Eugene O'Neill house. Comment
  UC2028502  Panicum capillare Barbara Ertter with Mary Bowerman, Lisa Schultheis 1998-8-21 16396 Contra Costa South side of Mount Diablo, South Gate Road 1.1 miles below entry kiosky Comment
  SJSU6411  Papaver heterophyllum G. C. Dudley 1966-5-1 112 Contra Costa Reliez Valley, Briones Hills, N of Lafayette Comment
  JEPS127671  Parapholis incurva Barbara Ertter with David Gowen and Michael Park 2017-5-2 22801 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  UCD88471  Parapholis incurva Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  UCD88661  Parapholis incurva P. B. Kennedy 1928-5-12 s.n. Contra Costa Byron Hot Springs. Comment
  CDA22266  Parietaria judaica D. G. Kelch, A. G. Murdock 2004-4-11 4 .078 Contra Costa Carquinez Strait Region; Crockett - Crolona Heights. 6th Street at Lillian Street. In Crockett. Comment
  UC1818917  Paspalum distichum Barbara Ertter 1995-9-30 14524 Contra Costa North bank of Cerrito Creek at end of Yosemite Avenue in El Cerrito, foot of Albany Hill; stonework bank at edge of overgrown sluggish creek. Comment
  UC2028559  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
  UCD150906  Paspalum distichum James A. Neilson Jr. 1972-11-2 3614 Contra Costa Walnut Creek drainage at State Highway 4. Elevation estimated using Google Earth by label maker. 1 Comment
  SEINET7085235  Pavonia hastata Steven R. Hill 2010-7-19 38544 Contra Costa Residence of Kristin Yanker-Hansen, 569 Contada Circle, Danville [94526]. Coordinate Datum: WGS84/NAD83. 122 Comment
  UC691604  Pedicularis densiflora Mary L. Bowerman 1932-1-30 1080 Contra Costa nw corner of basin of ne fork of Sycamore Creek; Mount Diablo, Inner Black Hills Comment
  UC692274  Pediomelum californicum Mary L. Bowerman 1930-6-7 282 Contra Costa Meridian Peak summit , Meridian Peak summit (Mount Diablo) Comment
  RSA91021  Pediomelum californicum F. W. Peirson 1923-7-1 3618 Contra Costa Near summit of Mt. Diablo. Comment
  UC1818872  Pelargonium inquinans Barbara Ertter, Brad Olson 1994-5-7 12757 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge, edge of San Francisco Bay. Openings, especially with seepage, near open brush. Comment
  JEPS112054  Pellaea andromedifolia A. G. Murdock 2003-2-21 68 Contra Costa Mt. Wanda - Martinez Chaparral, west border of Mt. Wanda property. 120 Comment
  RSA181408  Penstemon centranthifolius James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  RSA722064  Pentachaeta alsinoides Barbara Ertter, Lisa Schultheis 1995-4-27 14006 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; northwest side of open grassy ridge at end of Arbolado Drive. 122 Comment
  POM55516  Pentachaeta exilis C. F. Baker 1903-4-28 2826 Contra Costa Marsh Creek, Mt. Diablo. Comment
  UC1354307  Perideridia californica T. I. Chuang, L. R. Heckard and R. Bacigalupi 1968-4-27 6437 Contra Costa Deer Flat Mt. Diablo Comment
  UC692261  Perideridia californica Mary L. Bowerman 1933-6-20 2329 Contra Costa edge of stream <a> little above Bilharan Lodge; Mount Diablo, Donner Canyon Comment
  JEPS111618  Perideridia kelloggii D. G. Kelch 2004-7-9 04 .296 Contra Costa Crockett - Carquinez Scenic Drive Carq. Scenic Dr. East of Crockett West of Bull Valley SA 60 Comment
  UC691809  Perideridia oregana Mary L. Bowerman 1936-8-8 3525 Contra Costa Emmons Canyon Mount Diablo (w fork) Comment
  UCD127961  Perideridia parishii subsp. latifolia M. Wiesendanger 1925-5-1 1483 Contra Costa San Miguel. Comment
  JEPS125632  Persicaria hydropiperoides Daniel Slakey with CNPS Volunteers 2015-9-12 226 Contra Costa Browns Island, northern part of Crooked Slough. Comment
  UC1795740  Phacelia breweri Barbara Ertter, Tom Delendick 1996-5-2 14611 Contra Costa Mount Diablo State Park, Deer Flat Road north of Juniper Camp, at cut through open live oak forest, northwest-facing slope. 853 Comment
  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
  POM204460  Phacelia ciliata J. T. Howell 1933-3-29 10915 Contra Costa Near Pittsburg. Comment
  RSA44378  Phacelia ciliata L. S. Rose 1949-3-24 49009 Contra Costa 1 mile W of Byron. 30 Comment
  JEPS111838  Phacelia distans D. G. Kelch 2003-4-3 03 .359 Contra Costa Cummings Skyway 115 Comment
  UCD120412  Phacelia distans P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UC691703  Phacelia divaricata Mary L. Bowerman 1935-4-26 2897 Contra Costa w Indian Ceremonial Spring (hillside); Mount Diablo 1021 Comment
  UC2027999  Phacelia divaricata Barbara Ertter with Tony Morosco 1998-4-12 16020 Contra Costa Mount Olympia on north side of Mount Diablo, Olympia Road down ridge west of summit. 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
  CAS-BOT-BC154335  Phacelia phacelioides L. R. Abrams 1921-5-25 8016 Contra Costa Mt. Diablo on road to summit Comment
  POM252665  Phacelia phacelioides H. L. Mason 1938-5-3 11749 Contra Costa Trail between Juniper Camp and Deer Flat, Mount Diablo. Comment
  UC691328  Phacelia phacelioides Mary L. Bowerman 1933-4-26 1923 Contra Costa ese peak (s face); Mount Diablo, North Peak ridge 609 Comment
  JEPS101085  Phacelia tanacetifolia Dean W. Taylor 1992-4-16 12394 Contra Costa S of Byron Hot Springs, in swale draining on E margin of NE1/4 SE1/4 Section 34 45 Comment
  JEPS1284  Phacelia tanacetifolia Linda Gehringer 1914-3-29 Contra Costa Brentwood Comment
  JEPS68952  Phacelia tanacetifolia Edward Lee 1935-3-10 1281 Contra Costa Kirker Pass, Donovan Rd. (w. watershed of Kirker Creek) Comment
  UC126023  Phacelia tanacetifolia Katharine Brandegee May 1907 Contra Costa Antioch Comment
  UC691701  Phacelia tanacetifolia Mary L. Bowerman 1931-4-19 738 Contra Costa ridge s Deer Flat (by rocks on crest of ridge); Mount Diablo 838 Comment
  CDA28947  Phalaris minor D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .246 Contra Costa CA Delta; Along the old San Joaquin River Channel, S of Clifton Court Forebay and SE of Byron. Comment
  UCD89059  Phalaris minor Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  CAS-BOT-BC265961  Phalaris minor Mary L. Bowerman 1934-4-21 2533 Contra Costa Muir Area, Mount Diablo Comment
  CDA29524  Phalaris paradoxa D. G. Kelch, Troy MacGregor 2009-5-1 9 .28 Contra Costa Carquinez Strait; Fernandez Ranch in valley bottom along Christie Rd. Comment
  JEPS99588  Phalaris paradoxa Mary Bowerman 1995-7-2 Contra Costa Mount Diablo, foot [trail] from Back Canyon to Donner Canyon. Comment
  UCD146727  Phalaris paradoxa G. F. Hrusa; D. Crowe 1998-5-8 14401 Contra Costa Sacramento-San Joaquin River Delta. East end of Dow Chemical property. 15 Comment
  UCD89359  Phalaris paradoxa Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  UCD89368  Phalaris paradoxa Beecher Crampton 1956-5-14 3381 Contra Costa 4.5 miles S of Antioch. Comment
  UC2028531  Phalaris paradoxa Barbara Ertter 1998-5-3 16030 Contra Costa Macedo Ranch at southwest base of Mount Diablo. Comment
  UC84850  Phlox gracilis Katharine Brandegee May 1886 Contra Costa Antioch Comment
  JEPS18381  Pholistoma membranaceum Rimo Bacigalupi with F. Chisaki 1957-3-27 5763 Contra Costa opposite John Marsh Historical Home (along Marsh Creek Rd.) 48 Comment
  UC1950446  Pholistoma membranaceum Barbara Ertter 1992-3-8 10909 Contra Costa NE edge of Black Diamond Mines Regional Preserve, NE-heading canyon with steep loose sides ca 1/2 mi W of junction of Stewartville Trail and Frederickson Lane Comment
  CAS-BOT-BC141253  Phoradendron serotinum subsp. tomentosum Mary L. Bowerman 1930-9-9 450 Contra Costa Canyon running past Gabriel-Hinks. Mount Diablo Comment
  CAS-BOT-BC141255  Phoradendron serotinum subsp. tomentosum H. E. McMinn 1922-6-2 135 Contra Costa near toll gate on Mount Diablo Road Comment
  UC608463  Phoradendron villosum Beryl O. Schreiber 1934-2-22 944 Contra Costa Mt. Diablo Rd. Comment
  UC6098  Phoradendron villosum W. C. Blasdale 1891-3-7 Contra Costa San Pablo Creek Comment
Read comments
May 25 2011
  UC692037  Phoradendron villosum Mary L. Bowerman 1932-10-22 1636 Contra Costa flats at base of North Peak Mt. Diablo (rd. to Quicksilver Mine) Comment
  JEPS78626  Phragmites australis Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3279 Contra Costa Botany Cove Browns Island; , Botany Cove Comment
  CDA9279  Phragmites australis D. G. Kelch 2002-7-15 2 .007 Contra Costa CA Delta; Old San Joaquin River channel, E of Brentwood. San Joaquin County border. 0 Comment
  UC1789168  Phyllostachys aurea Barbara Ertter 2001-5-26 17652 Contra Costa Stamm Unit of Antioch Dunes National Wildlife Refuge east of Antioch, single well-established clump at base of river bank. Comment
  UC692692  Pickeringia montana var. montana Mary L. Bowerman 1931-5-2 793 Contra Costa Eagle Point Ridge Mount Diablo (n end) Comment
  JEPS47871  Pinus coulteri W. L. Jepson 1909-6-25 3116 Contra Costa Mt. Diablo Comment
  UC440233  Pinus coulteri Mrs. H. P. Bracelin 1931-3-22 179 Contra Costa Nortonville Comment
  UC691927  Pinus coulteri Mary L. Bowerman 1931-3-8 565 Contra Costa above Mitchell Rock; Mount Diablo Comment
  CDA32812  Pinus halepensis D. G. Kelch 2010-11-8 10 .445 Contra Costa Carquinez Strait; W Valona (Crockett). Comment
  UC1779708  Pinus halepensis Rudolf Schmid 1997-5-21 1997 -14 Contra Costa Hillside Natural Area, El Cerrito; NW of King Ct. entrance. 175 Comment
  UC2029175  Pinus halepensis Barbara Ertter 2000-7-29 17444 Contra Costa Donner Basin on north side of Mount Diablo, Falls Trail at east fork of Donner Creek (between main fork and Wild Oat Canyon), trickle of surface water. Comment
  CAS-BOT-BC72778  Pinus sabiniana Le Roy Abrams 1910-10-8 4350 Contra Costa Mt. Diablo 853 Comment
  JEPS48206  Pinus sabiniana W. L. Jepson 1931-4-5 15727 Contra Costa Nortonville Comment
  JEPS48208  Pinus sabiniana W. L. Jepson 1909-6-25 3119 Contra Costa Mt. Diablo Comment
  UC691920  Pinus sabiniana Mary L. Bowerman 1931-2-8 516 Contra Costa by roadside around bend from (below) Silver Spring Comment
  JEPS84499  Piperia elegans Jack Stratford 1980-8-6 Contra Costa Huckleberry Trail Huckleberry Botanic Regional Preserve Comment
  JEPS79510  Piperia elongata Edward Lee 1978-7-9 Contra Costa Pt. San Pablo Comment
  UC2028359  Piperia michaelii Barbara Ertter with Tony Morosco 1998-7-11 16367 Contra Costa North base of Mount Diablo, Coulter Pine Trail just east of Mitchell Rock Trail, N-facing slope Comment
  SEINET3292817 Image available Plagiobothrys Lewis S. Rose 1933-3-29 33046 Contra Costa Pittsburg Comment
  JEPS60917  Plagiobothrys acanthocarpus Mary L. Bowerman 1933-3-25 1761 Contra Costa Diablo Stock Farm (Stone Valley) Canyon Mount Diablo (w fork) Comment
  CDA40687  Plagiobothrys acanthocarpus Jim Jokerst 1989-3-29 3070 Contra Costa Byron Hot Springs area northeast of Livermore, adjacent to pipeline on terrace south of ephemeral creek. 0 Comment
  RSA755523  Plagiobothrys acanthocarpus Barbara Ertter 1992-3-8 10912 Contra Costa Contra Loma Regional Park; vernally wet flat northeast of bend in Frederickson Lane. Comment
  UC2029043  Plagiobothrys acanthocarpus Barbara Ertter 2000-3-19 16894 Contra Costa Southwest flank of Mount Diablo, east of Pine Ridge, below Wall Point Road. Comment
  RSA0027645  Plagiobothrys bracteatus Barbara Ertter 1998-5-3 16058 Contra Costa Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. 274 Comment
  SEINET12343274  Plagiobothrys bracteatus Ottley 1920-4-25 448 Contra Costa entrance to Mitchell Canon, Mt. Diablo 198 Comment
  UC2029139  Plagiobothrys bracteatus Barbara Ertter with Alan Prather 2003-6-7 18199 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, fenced pond in bend of east Highland Ridge Trail, 1/4 miles E of junction Stone Corral Trail. Comment
  UC1057488  Plagiobothrys canescens William Hirano 1949-3-29 Contra Costa Byron 50 Comment
  UC882307  Plagiobothrys canescens Lewis S. Rose 1933-3-29 33046 Contra Costa Pittsburg Comment
  SEINET12275845  Plagiobothrys canescens L. S. Rose 1933-1 33046 Contra Costa Pittsburg Comment
  JEPS111828  Plagiobothrys fulvus D. G. Kelch 2005-4-24 05 .172 Contra Costa Franklin Canyon Franklin Canyon, Contra Costa County, CA. Collier Hill. West Carbon 60 Comment
  CHSC67894  Plagiobothrys humistratus James D. Jokerst 1989-3-28 3060 Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. Comment
  CDA40676  Plagiobothrys humistratus Jim Jokerst 1989-3-29 3066 Contra Costa 0.25 mile south of Byron Hot Springs, northeast of Livermore. 0 Comment
  UC766406  Plagiobothrys infectivus R. F. Hoover 1941-4-12 4835 Contra Costa 1 mi n Lone Tree Valley Comment
  CHSC106838  Plagiobothrys leptocladus Barbara Ertter; Jim Jokerst, Dave Magney 1989-4-5 8129 Contra Costa SE part of county. Ca 15 air miles SW of Stockton, alkali sink W and adjacent to Clifton Court Forebay. Comment
  JEPS88009  Plagiobothrys leptocladus Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8129 Contra Costa ca. 15 air miles s.w. Stockton (w. and adjacent to Clifton Court Forebay); s.e. Contra Costa Co. Comment
  UCSB39472  Plagiobothrys nothofulvus Fritzke, Sue 1980-3-29 Contra Costa 0.5 miles from the N end of Ball Rd.; in Shell Ridge Open Space Area; SE of the rock quarry 121 Comment
  SEINET12275872  Plagiobothrys scouleri H. M. Hall 1901-1 s.n. Contra Costa region of San Francisco Bay, Mt. Diablo, western base Comment
  JEPS61072  Plagiobothrys stipitatus var. micranthus E. L. Greene 1889-3-24 Contra Costa Byron Comment
  OBI20600  Plagiobothrys stipitatus var. micranthus Robert F. Hoover 1967-4-28 10513 Contra Costa Byron Hot Springs Comment
  UC765574  Plagiobothrys stipitatus var. micranthus R. F. Hoover 1937-5-14 2121 Contra Costa Byron Hot Springs Comment
  RSA666361  Plagiobothrys stipitatus var. micranthus Barbara Ertter, J. D. Jokerst, D. Magney 1989-4-5 8126 Contra Costa SE Contra Costa: alkali sink W and adjacent to Clifton Court Forebay, ca 15 air miles SW of Stockton 0 Comment
  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
  SD4240  Plagiobothrys tenellus T. S. Brandegee May 1888 Contra Costa Antioch Comment
  UC1618201  Plagiobothrys trachycarpus Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8117 Contra Costa ca. 15 air mi. s.w. Stockton (w. & adjacent to Clifton Court Forebay); s.e. Contra Costa Co. Comment
  JEPS116943  Plagiobothrys trachycarpus David Gowen 2008-4-16 863 Contra Costa Just south of parking area for Black Diamond Mines Regional Preserve on Frederickson Road. Comment
  JEPS111489  Plagiobothrys undulatus Nancy Hillyard 2004-5-18 886 Contra Costa Briones Park Comment
  JEPS116832  Plagiobothrys undulatus David Gowen 2007-5-8 707 Contra Costa Briones Regional Park, in vernal depression northeast of Sindicich Lagoon. Comment
  JEPS22059  Plantago coronopus G. Thomas Robbins 1958-7-13 3899 Contra Costa n end Berrellesa Street, Martinez; Carquinez Strait Comment
  UC1745837  Plantago elongata Annetta M. Carter 1935-3-10 752 Contra Costa Kirker Pass, Donovan Rd. to Pittsburg. Comment
  JEPS111993  Plantago erecta D. G. Kelch 2004-4-11 04 .62 Contra Costa Crockett - 5th St. Prairie 85 Comment
  JEPS111996  Plantago erecta D. G. Kelch 2003-3-28 03 .88 Contra Costa Rodeo - Lone Tree Point 2 Comment
  PASA26  Plantago erecta Annetta Carter 1929-3-31 Contra Costa Near Clayton Comment
  UC2042062  Plantago erecta Katie Gallagher with Nick Jensen 2014-4-26 189 Contra Costa Las Tramps Regional Wilderness. 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
  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
  JEPS111994  Plantago major D. G. Kelch 2004-4-24 04 .103 Contra Costa Ca ada del Cierbo Upper Ca ada de Cierbo on fire road to cow barn along Cummings Skyway 70 Comment
  JEPS112000  Plantago major D. G. Kelch 2004-6-6 04 .227 Contra Costa Martinez - Train Station Downtown Martinez. Alhambra Creek near bay and railroad Station. Large perennial to 65 cm. In wet areas. 2 Comment
  CAS-BOT-BC91608  Platystemon californicus James McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  CAS-BOT-BC91600  Platystemon californicus Mary L. Bowerman 1935-4-17 2828 Contra Costa Mount Diablo. West road 2 miles from entrance, just west of chaparral. 237 Comment
  UC101591  Platystemon californicus Katharine Brandegee 1907-5-5 h Contra Costa between Antioch and Marsh Creek (along a sandy road back of old Coal Mine); between Antioch and Marsh Creek Comment
  JEPS100158  Plectritis brachystemon G. Smick 2003-4-3 GAS 119 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC691527  Plectritis ciliosa subsp. ciliosa Mary L. Bowerman 1931-3-29 629 Contra Costa Mount Diablo, on n side of Cave Point below summit Cave Point; Mount Diablo, Cave Point Comment
  PASA292  Plectritis macrocera Annetta Carter 1929-3-31 Contra Costa Near Clayton Comment
  UC55888  Plectritis macrocera H. M. Hall 1900-3-23 Contra Costa San Francisco Bay Region, San Pablo Creek San Pablo Creek; San Francisco Bay Region, San Pablo Creek 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
  UC1112203  Pleuropogon californicus Peter H. Raven with G. Thomas Robbins 1956-4-28 9042 Contra Costa just e of to Martinez (along State Hwy 4) Comment
  CDA8486  Pluchea odorata D. G. Kelch, A. G. Murdock 2004-9-2 4 .334 Contra Costa Carquinez Strait Region; Pacheco Marsh. Marsh east of Martinez and I-680 and east of lone tree Marsh. Comment
  JEPS111673  Pluchea odorata var. odorata D. G. Kelch 2003-8-13 03 .96 Contra Costa Martinez Marsh 0 Comment
  UC1618403  Pluchea odorata var. odorata Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10869 Contra Costa just w. Antioch marina (along levee at water's edge, accessed from marina, Dow Wetlands Preserve); Dow Wetlands Preserve Comment
  UCD159502  Pluchea odorata var. odorata D. S. Park 2010-9-11 251 -1 Contra Costa Waterfront Rd. Growing in ditch along roadside. Disturbed. Wet. 5 Comment
  UCD159503  Pluchea odorata var. odorata D. S. Park 2010-9-11 251 -2 Contra Costa Waterfront Rd. Growing in ditch along roadside. Disturbed. Wet. 5 Comment
  SBBG44987  Poa annua A. Eastwood, J. T. Howell 1936-4-19 Contra Costa Antioch Comment
  SEINET10593459  Poa annua Alan A. Beetle 1942-3-22 Beetle 2926 Contra Costa Brooks Island, San Francisco Bay, near Richmond. Comment
  UC2028529  Poa annua Barbara Ertter 1998-1-4 15890 Contra Costa South end Diablo Foothills Regional Park southeast of Walnut Creek, Hazzard Pond north of Livorna Staging Area Comment
  UC912661  Poa howellii Herbert L. Mason 1928-4-15 4350 Contra Costa e end Moraga Ridge Comment
  JEPS71285  Poa secunda W. L. Jepson 1925-4-26 10687 Contra Costa Black Hills Mt Diablo Comment
  CDA9433  Poa secunda D. G. Kelch 2002-5-2 s.n. Contra Costa Altamont Hills; Corral Hollow Rd. 0 Comment
  UC39568  Poa secunda subsp. secunda Alice Eastwood 1893-5-3 Contra Costa Antioch Comment
  UC692472  Poa secunda subsp. secunda Mary L. Bowerman 1935-5-18 3028 Contra Costa n of summit parking area Meridian Peak; Mt Diablo 1036 Comment
  UC70975  Poa secunda subsp. secunda H. M. Hall 1901-3-17 1661 Contra Costa Pt Richmond Comment
  JEPS112472  Pogogyne serpylloides D. G. Kelch 2005-5-1 05 .196 Contra Costa Crockett - Edwards Canyon. 150 Comment
  JEPS128782  Pogogyne serpylloides Kevin Hintsa 1999-5-25 Contra Costa Mount Diablo State Park, on Meridian Ridge Road a few yards from Deer Flat. Comment
  UC1818877  Polygonum Barbara Ertter 1995-8-19 14504 a Contra Costa Edge of Cerrito Creek on north side of Albany Hill, south edge of El Cerrito; dense weeds at edge of sluggish water. Comment
  CAS-BOT-BC414177  Polygonum aviculare subsp. depressum R. E. Frenkel 1963-9-8 278 Contra Costa On Walnut Blvd., Walnut Creek Comment
  CDA2790  Polygonum cuspidatum R. DeBoer 1969-5-9 Contra Costa West side of parking lot, Rexal Park Pharmacy, 3716 San Pablo Dam Road, El Sobrante. 0 Comment
  UC1478301  Polypodium calirhiza Alan R. Smith with Tom Lemieux 1981-11-19 828 Contra Costa n slope of ridge above Devil's Elbow Trail (between rd. and Devil's Pulpit); Mt. Diablo State Park 1066 Comment
  UC1614416  Polypodium calirhiza Charles M. Belshaw 1935-12-28 1427 Contra Costa on trail above ranch house Las Trampas Ridge Comment
  UC692122  Polypodium calirhiza Mary L. Bowerman 1933-12-2 2478 Contra Costa rocks by Alder Canyon Alder Canyon; Mt. Diablo 533 Comment
  UC805287  Polypodium calirhiza W. H. Wagner Jr. 1950-6-4 Contra Costa along rd. above San Pablo Reservoir (near Inspiration Point) Comment
  UCR254829  Polypogon Peter Rubtzoff 1968-9-18 5965 Contra Costa North Gate Road, c. 5 miles NW of Mt. Diablo State Park north entrance 58 Comment
  UC1819024  Polypogon interruptus Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14634 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
  UC50633  Polypogon monspeliensis Jos. Burtt Davy 1897-9-4 4079 Contra Costa Stege Comment
  UC692382  Polypogon monspeliensis Mary L. Bowerman 1932-8-27 1521 Contra Costa spring s of Turtle Rock Mount Diablo; , spring s of Turtle Rock Comment
  UCR2722  Polypogon monspeliensis A. A. Beetle 1941-6-24 1750 Contra Costa Point Richmond on San Francisco Bay Comment
  UCD91299  Polypogon monspeliensis Beecher Crampton 1959-9-3 5453 Contra Costa Contra Costa County, 2 miles north of city of Orinda, Bear Creek. Comment
  RSA0029363  Polypogon viridis Barbara Ertter, Mary L. Bowerman, Lisa Schultheis 1996-7-5 14917 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  CDA23603  Polystichum munitum D. G. Kelch 2008-2-24 8 .015 Contra Costa Carquinez Strait; Pinole Valley Park. Comment
  UC846002  Populus fremontii subsp. fremontii Lewis S. Rose 1941-3-13 41028 Contra Costa 7 mi w Byron (Marsh Creek); Marsh Creek Comment
  CAS-BOT-BC267114  Potamogeton Walter Knight; L. R. Heckard; B. Johnson 1978-9-28 3273 Contra Costa Mouth of Crooked Slough, Browns Island Comment
  CAS-BOT-BC452110  Potamogeton crispus Walter Knight 1979-6-15 3385 Contra Costa Where Straight Slough merges with New York Slough. Browns Island. Comment
  RSA755535  Potamogeton diversifolius Barbara Ertter, Brad Olson 1991-9-28 10839 Contra Costa San Pablo Reservoir between Orinda and El Sobrante 91 Comment
  RSA720835  Potamogeton foliosus Mary L. Bowerman 1995-6-8 s.n. Contra Costa Mount Diablo. Pine Pond. Comment
  JEPS78628  Potamogeton pectinatus Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3295 Contra Costa mouth of Crooked Slough; Browns Island, East Bay Regional Park District Comment
  JEPS46554  Proboscidea G. Thomas Robbins 1959-8-1 4114 Contra Costa roadside berm of frontage road just s Mt. Diablo Blvd. ((about 0.5 mi e of concrete bridge at Charles Hill and about 0.2 mi w of jct. of Hidden Valley Rd.), 2 mi w of Lafayette) 144 Comment
  JEPS23820  Proboscidea lutea G. Thomas Robbins 1959-8-1 4114 Contra Costa roadside berm of frontage road just s Mt. Diablo Blvd. ((about 0.5 mi e of concrete bridge at Charles Hill and about 0.2 mi w of jct. of Hidden Valley Rd.), 2 mi w of Lafayette) 144 Comment
  JEPS46549  Proboscidea lutea Mrs. Kate Jared Stirring Sept. 1914 Contra Costa between Concord and Walnut Creek; Ignacio Valley Comment
  CAS-BOT-BC508635  Prosartes hookeri Mary L. Bowerman 1933-4-22 1888 Contra Costa Curry-Cave Point Trail 426 Comment
  UC74103  Proserpinaca pectinata N. L. Gardner 1905-11-14 Contra Costa near Richmond Comment
  CAS-BOT-BC202303  Prosopis glandulosa var. torreyana Walter Knight; Irja Knight 1968-9-25 2251 a Contra Costa North entrance Contra Loma Regional Park, west side of road Comment
  UC691115  Prunus cerasifera Mary L. Bowerman 1931-4-18 726 Contra Costa Sycamore Canyon: flat at junction of E and NE forks. Mt. Diablo 396 Comment
  UC2027755  Prunus cerasifera Barbara Ertter, Mary Bowerman 1996-11-1 15407 Contra Costa North base of Mount Diablo, lower Donner Creek. Comment
  CDA33067  Prunus dulcis D. G. Kelch 2010-10-5 10 .415 Contra Costa The Delta; Just east of Antioch bridge. Comment
  UC2012995  Prunus dulcis Barbara Ertter with Lisa Schultheis 1996-9-2 15277 Contra Costa South side Mount Diablo, east end of Blackhawk Ridge. Comment
  UC2027733  Prunus dulcis Barbara Ertter 1997-2-16 15460 Contra Costa Shell Ridge Open Space on west flank of Mount Diablo, exposed sandstone on main ridgeline. Comment
  UC2028141  Prunus dulcis Barbara Ertter 1998-4-4 15974 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, Quarry Hill. Comment
  JEPS112091  Prunus lyonii D. G. Kelch 2004-5-9 04 .215 Contra Costa Crockett - Eckley Hills North of Bull Valley Staging Area. Rare 13 Comment
  UC1614254  Prunus virginiana var. demissa Charles M. Belshaw 1935-6-10 695 Contra Costa Morgan Territory Road Comment
  UC2027928  Prunus virginiana var. demissa Barbara Ertter with John Ginochio and Mary Bowerman 2001-5-8 17633 Contra Costa Northwest flank of Mount Diablo, headwaters of Arroyo del Cerro between Olofson Ridge and Long Ridge. Comment
  UC2028511  Pseudognaphalium beneolens Barbara Ertter 1996-11-24 15414 Contra Costa Southwest side of Mount Diablo, Wall Point Road across Pine Ridge ca 1/2 airmiles ENE of Macedo Ranch Comment
  UCD35161  Pseudognaphalium beneolens Beecher Crampton 1950-7-29 624 Contra Costa Waste ground along Sante Fe R.R., 1 mile north of Richmond. Comment
  CDA42365  Pseudognaphalium californicum D. G. Kelch, Vince Guise 2012-7-26 12 .232 Contra Costa El Sobrante; Circle Dr. Comment
  UC2013024  Pseudognaphalium californicum Barbara Ertter 1990-5-19 8994 Contra Costa Lafayette Ridge of Briones Regional Park N of Lafayette. Comment
  SEINET9295311  Pseudognaphalium leucocephalum Unknown 1950-7-29 624 Contra Costa Waste ground along Santa Fe RR. 1 mi N of Richmond, gravelly soil Plant sent to USCH for identification. Query letter included on specimen. Comment
  CHSC116623  Pseudognaphalium luteoalbum Lowell Ahart; Josephine Guardino 2016-4-19 20767 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Below the high water line of Los Vaqueros Reservoir, 1.4 miles northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  UC2036954  Pseudognaphalium luteoalbum Mary L. Bowerman 1946-2-10 4080 Contra Costa Weed around old C.C.C. camp buildings (not in use at moment). Comment
  SBBG103996  Pseudognaphalium microcephalum W. Knight, I. Knight 1977-7-25 Contra Costa Black Diamond Mines Regional Reserve, Nortonville town site 167 Comment
  UC1795802  Pseudognaphalium stramineum Barbara Ertter, Rich Rabeler 1994-6-6 12817 Contra Costa Point Isabel in south Richmond; black cinders on old railroad bed north of Costco; landfill. Comment
  SEINET3875503  Pseudotsuga menziesii Michael R. Tansey 1963-2-15 2 Contra Costa North end of Jewel Lake in Tilden Regional Park, California.; 0 152 Comment
  CAS-BOT-BC361879  Psilocarphus tenellus John Thomas Howell 1933-5-14 11230 Contra Costa St. Mary's College Comment
  JEPS40518  Psilocarphus tenellus W. L. Jepson 1922-5-11 9635 Contra Costa n Berkeley Hills; North Berkeley Hills Comment
  UC35753  Psilocarphus tenellus W. H. Brewer 1862-5-26 1165 Contra Costa canyon near Mount Diablo Comment
  RSA31229  Psilocarphus tenellus var. tenellus Joseph A. Ewan 1936-5-3 9497 Contra Costa Wildcat Creek near Orinda road bridge. Comment
  POM278390  Ptelea baldwinii subsp. crenulata Lyman D. Benson 1931-3-18 2668 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 Comment
  POM203037  Ptelea baldwinii subsp. crenulata J. T. Howell 1934-4-8 11811 Contra Costa 7 miles from Clayton on road to Livermore. Comment
  RSA448386  Ptelea baldwinii subsp. crenulata H. de Forest 1930-4-6 s.n. Contra Costa SE of Mortonville, Small 'coal mine' ravine. 274 Comment
  CAS-BOT-BC148629  Ptelea crenulata Alice Eastwood 1897-5-31 s.n. Contra Costa Mount Diablo Comment
  JEPS97553  Ptelea crenulata R. D. Stone 1985-3-15 657 Contra Costa Souza Ranch Byron (hills dividing the Kellogg and Brushy Creek drainages; ca. 5 mi SW of) 259 Comment
  SD70002  Ptelea crenulata Darley Howe 1968-5-20 Contra Costa Nortonville Comment
  UC194966  Ptelea crenulata H. M. Hall 1916-8-17 10277 Contra Costa 6 mi s Antioch; Upper Horse Valley 213 Comment
  CAS-BOT-BC148642  Ptelea crenulata H. E. McMinn 1922-6-2 95 Contra Costa In ravine on north slope of Mt. Diablo 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
  JEPS111935  Pteridium aquilinum A. G. Murdock 2004-4-30 244 Contra Costa Vaca Canyon On north side of road along creek 165 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
  UC1795763  Pterostegia drymarioides Barbara Ertter, Lisa Schultheis 1995-4-27 14014 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; north-facing open brushy slope with scattered oaks along extension of Valley View road. 182 Comment
  UC2042941  Pyracantha angustifolia Barbara Ertter 1991-5-12 9811 Contra Costa Point Isabel Regional Shoreline in SW corner of El Cerrito, on San Francisco Bay. Comment
  JEPS28855  Quercus X morehus James B. Roof, Irja Knight 1962-2-21 Contra Costa Moraga Ridge Comment
  UC5621  Quercus X morehus J. Burtt Davy 1895-1-3 834 Contra Costa Wild-cat Canyon Comment
  CAS-BOT-BC104163  Quercus X morehus C. Davies 1919-1 s.n. Contra Costa near Post Office Mills College Comment
  CAS-BOT-BC104165  Quercus X morehus C. Hart Merriam 1919-5-10 s.n. Contra Costa From the hill above Redwood Inn Moraga Valley Comment
  CAS-BOT-BC104167  Quercus X morehus Mary L. Bowerman 1935-10-26 3349 Contra Costa Mount Diablo. 0.1 mile by road above Silver Spring, 50 feet from road 859 Comment
  CAS-BOT-BC45657  Quercus agrifolia John Thomas Howell 1926-12-27 2274 Contra Costa Near Oakley Comment
  CDA21816  Quercus agrifolia D. G. Kelch 2007-3-24 7 .083 Contra Costa Carquinez Strait; Ozol; between Port Costa and Martinez, near old brick quarry. 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
  UCD17416  Quercus agrifolia E. Dean; with B. Ertter, J. M. Tucker, and K. Chaney 2000-9-13 652 Contra Costa California. Contra Costa County: City of El Sobrante; El Sobrante Ridge, upslope of the terminus of Heavenly Ridge Rd., south of junction of Heavenly Ridge Trail and Manzanita Trail, at end of branch off Manzanita trail, south-facing slope overlooking city of El Sobrante. 213 Comment
  UCD45028  Quercus agrifolia J. M. Tucker 1946-3-14 1374 Contra Costa Small tree ca.29 feet tall, in clearing among redwoods; Redwood Peak, ca. 150 yards south of summit, Contra Costa County, California. Comment
  UCSC010011  Quercus agrifolia var. agrifolia Al Keuter 2014-5-23 AK 00 -095 Contra Costa Along Wildcat Canyon Road on the northeast side of the hills behind Berkeley 168 Comment
  RSA0041717  Quercus berberidifolia Mary L. Bowerman 1930-10-19 490 Contra Costa South road at Garden-of-the-Gods (Fossil Ridge). Comment
  CAS-BOT-BC62695  Quercus chrysolepis Paul F. Covel 1940-5-12 1744 Contra Costa Mt. Diablo (at Rock City) 487 Comment
  OBI42731  Quercus chrysolepis Cathy Peterson 1971-11-6 4 Contra Costa Mount Diablo, south side, approx 10 yds from Rock City entrance 610 Comment
  CAS-BOT-BC86644  Quercus douglasii Alice Eastwood 1923-5-14 11813 Contra Costa Mt. Diablo Comment
  JEPS100000  Quercus douglasii S. O'Neil 2003-3-11 SEO 16 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD45684  Quercus douglasii John M. Tucker 1941-8-28 385 Contra Costa Beside road up Curry Canyon, 6 miles south of junction with the road from Clayton to Byron, Contra Costa County, California. Comment
  UC691299  Quercus durata Mary L. Bowerman 1932-10-16 1632 Contra Costa Donner Canyon trail Mount Diablo Comment
  CHSC83198  Quercus garryana B. Ertter; M. Bowerman, E. Dean, J. Tucker, J. Kerbavaz 2000-9-13 654 Contra Costa Mount Diablo State park, Fossil Ridge, just upslope of South Gate Rd., just west of Gibraltar Rock, southeast of Rock City. 487 Comment
  CAS-BOT-BC94292  Quercus garryana Mary L. Bowerman 1935-11-30 3351 Contra Costa In draw SW of Gibraltar Rock, Fossil Ridge Comment
  POM301007  Quercus kelloggii Mary L. Bowerman 1936-8-19 3531 Contra Costa Pine Canyon mouth, most northerly west-heading streamlet shown on topographic map (now dry). 168 Comment
  UC2070456  Quercus kelloggii Barbara Ertter with Joanne Kerbavaz 2000-6-12 17311 Contra Costa Rocky City area on SSW side of Mount Diablo. Comment
  UC5602  Quercus kelloggii unknown Contra Costa Comment
  UC5623  Quercus kelloggii W. G. Klee 1878-1 Contra Costa between Lafayette and the Fish Ranch (on the road to Mt. Diablo) Comment
  JEPS99998  Quercus lobata G. Smick 2003-2-18 GAS 64 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD46831  Quercus lobata John M. Tucker 1941-8-28 384 Contra Costa Beside road up Curry Canyon, 3 miles south of junction with the road from Clayton to Byron, Contra Costa County, California. Comment
  SEINET12034644  Quercus lobata M. T. Doutt 1930-1 81 Contra Costa Marsh Creek,6 mi E of Clayton Comment
  SEINET9356036  Quercus lobata Unknown 1938-10-28 Contra Costa Marsh Creek, 6 mi E of Clayton. Canyon bottom. Comment
  UCD47072  Quercus palmeri J. M. Tucker 1981-5-31 4459 Contra Costa California, Contra Costa County: Antonio Souza Ranch southwest of Byron (extended Section NW quarter Sec. 31, R3E, T1S, Mt. Diablo Meridian). 309 Comment
  CDA29568  Quercus parvula var. shrevei D. G. Kelch, Suzanne Latham, Matt Beyers 2009-6-3 9 .332 Contra Costa East Bay.; El Sobrante Ridge at end of Silver Belt Dr. on Miocene chert outcrop. Comment
  CAS-BOT-BC104707  Quercus wislizeni John Thomas Howell 1950-6-5 26637 Contra Costa Nortonville Comment
  CAS-BOT-BC104710  Quercus wislizeni Mary L. Bowerman 1930-7-7 287 Contra Costa Mount Diablo. Summit Comment
  UC5707  Quercus wislizeni W. H. Brewer 1861-9-25 843 Contra Costa Mount Diablo Comment
  UCD47516  Quercus wislizeni R. W. Lundh 1932-8-17 129 Contra Costa 1 mile E. of Round Valley. Quadrangle: Mt. Diablo (Contra Costa), Sec. 9, T. 1S, R 2E. 304 Comment
  CAS-BOT-BC104718  Quercus wislizeni D. C. Barclay 1919-5-10 s.n. Contra Costa from the hill above Redwood Inn, Moraga Valley Comment
  UCD47649  Quercus wislizeni var. frutescens John M. Tucker 1941-9-26 410 Contra Costa Summit of Moraga Ridge, Contra Costa County, California. Comment
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Sep 13 2011
  SJSU10139  Quercus wislizeni var. wislizeni A. W. Jacobs 1938-10-1 Contra Costa lower E slope of Mt Diablo, 5 mi S of Clayton Comment
  UC92077  Rafinesquia californica E. L. Greene 1886-5-24 Contra Costa Mount Diablo Comment
  CAS-BOT-BC362441  Rafinesquia californica Mary L. Bowerman 1930-6-14 327 Contra Costa Mount Diablo. Meridian Peak little below summit Comment
  UC691952  Ranunculus aquatilis Mary L. Bowerman 1933-3-18 1754 Contra Costa Hidden Pond Mount Diablo Comment
  CAS-BOT-BC379108  Ranunculus aquatilis var. diffusus W. W. Carruth 1902-4-29 s.n. Contra Costa Mount Diablo 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
  RSA0029781  Ranunculus aquatilis var. subrigidus Barbara J. Ertter, Alan Prather 2003-6-7 18190 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, pond NE of main trailhead. Comment
  CDA29216  Ranunculus californicus D. G. Kelch 2006-5-7 6 .147 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  POM268439  Ranunculus californicus Mary L. Bowerman 1935-5-22 3048 Contra Costa Eagle Point ridge, canyon at N end which heads into saddle W of Twin Peaks. 427 Comment
  RSA268401  Ranunculus canus Lyman Benson 1935-3-16 6275 Contra Costa Mitchell Canyon near Clayton; Mt. Range: Mt. Diablo; Watershed: Walnut Creek. 244 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
  UC732542  Ranunculus canus Lyman Benson 1931-3-18 2655 Contra Costa Danville South Coast Mt. Range, Sacramento River Watershed, Mt. Diabl (w base of mt.) 213 Comment
  POM149874  Ranunculus canus Jos. Burtt Davy 1898-05 s.n. Contra Costa San Ramon, Mt Diablo Comment
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Jan 23 2011
  POM268398  Ranunculus canus Lyman Benson 1931-3-18 2655 Contra Costa Mt. Diablo near Danville; Mt. Range: Mt. Diablo; Watershed: Walnut Creek 152 Comment
  SEINET12087454  Ranunculus canus Unknown 1931-1 2655 Contra Costa W. Base Mt. Diablo, Danville, Mt. Range: South Coast, Sacramento River, North slope Comment
  UC692185  Ranunculus canus var. canus Mary L. Bowerman 1931-3-8 563 Contra Costa Mitchell Canyon (west bank, near mouth); Mount Diablo Comment
  UC9455  Ranunculus canus var. canus J. Burtt Davy 1895-4-7 925 Contra Costa Antioch Comment
  UC692125  Ranunculus hebecarpus Mary L. Bowerman 1932-3-23 1130 Contra Costa ridge e Donner Canyon (at saddle); Mount Diablo 274 Comment
  UC9445  Ranunculus hebecarpus Geol. Survey 1862-1 1049 Contra Costa Mt. Diablo; foothills Comment
  CDA33805  Ranunculus hebecarpus D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .113 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  JEPS112941  Ranunculus lobbii Dean W. Taylor 2001-3-16 17610 Contra Costa eastern flank Mt. Diablo, Mount Diablo State Park, along Olympic Trail (fire road) about 0.25 road miles W from Marsh Creek Road (ca. 5 air miles South from Clayton) 298 Comment
  UC692200  Ranunculus muricatus Mary L. Bowerman 1938-5-25 3629 Contra Costa by North Road (on edge of stream); Mount Diablo, Arroyo del Cerro Comment
  UC61031  Ranunculus orthorhynchus var. bloomeri N. L. Gardner 1904-2-17 Contra Costa Happy Valley Comment
  JEPS127092  Raphanus raphanistrum Lowell Ahart, Josephine Guardino 2016-4-19 20772 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
  UC2027737  Raphanus raphanistrum Barbara Ertter 1997-2-11 15454 Contra Costa North base of Mount Diablo, vacant lot on Regency Drive (en route to Donner Canyon trailhead). Comment
  CDA29197  Rhamnus californica D. G. Kelch 2008-6-15 8 .249 Contra Costa Carquinez Strait; Crockett hills, S of Cummings Skyway, W of Crockett Blvd. Comment
  UC1784204  Rhamnus californica Ethel Crum 1930-9-29 858 Contra Costa Marsh Creek Road to Holt Comment
  CDA9186  Rhamnus crocea Christopher Thayer 1995-6-5 s.n. Contra Costa Carquinez Strait; W of Pinole Peak. Comment
  CAS-BOT-BC59895  Rhamnus ilicifolia Peter Rubtzoff 1951-10-7 816 Contra Costa Ca. 3 mi. ne. of Moraga, near Trampas and Grizzly Creeks. Comment
  UC1818932  Rhamnus tomentella subsp. tomentella Barbara Ertter, Brad Olson, Diane Lake 1996-4-14 14593 Contra Costa East side of Mt. Diablo, mid-slope on Prospectors-Gap Rd. in solid brushland. Comment
  CAS-BOT-BC200698  Rhus aromatica Mary L. Bowerman 1933-3-25 1776 Contra Costa Emmons Canyon, off Stone Valley Comment
  POM181150  Ribes californicum J. T. Howell 1931-2-21 5730 Contra Costa Mt. Diablo. Comment
  POM274738  Ribes californicum Unspecified 1935-3-16 6268 Contra Costa Mt. Diablo, Walnut Creek watershed, Upper Sonora zone. Comment
  UC480600  Ribes californicum Carl Meyer 1928-2-22 285 Contra Costa Mt. Diablo 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-BC168922  Ribes malvaceum Alice Eastwood; John Thomas Howell 1936-4-19 2140 Contra Costa Nortonville Comment
  CAS-BOT-BC168924  Ribes malvaceum John Thomas Howell 1923-11-12 243 Contra Costa Mt. Diablo Comment
  UC69254  Ribes malvaceum H. M. Hall 1901-4-5 1753 Contra Costa Mt. Diablo Region of San Francisco Bay 1005 Comment
  CAS-BOT-BC206020  Ribes menziesii Alice Eastwood 1914-3-6 s.n. Contra Costa Redwood Canyon Comment
  UC692434  Ribes menziesii Mary L. Bowerman 1935-6-1 3102 Contra Costa first minor ridge e Mitchell-Pine divide; Mount Diablo 1005 Comment
  UC692436  Ribes menziesii Mary L. Bowerman 1932-9-3 1541 Contra Costa Meridian Peak summit, by trail leading s from the house Mount Diablo Comment
  LA205508  Ribes sanguineum Joseph Andorfer Ewan; 1934-3-10 8650 Contra Costa Wildcat Canyon, 1.5 mi. below Orinda road bridge Comment
  CAS-BOT-BC209361  Ribes sanguineum var. glutinosum Peter H. Raven 1950-3-5 1399 Contra Costa Redwood Canyon 152 Comment
  SEINET13942923 Image available Ribes victoris Joseph Andorfer Ewan 1934-1 8652 Contra Costa Occasional on creek flat, not with no. 8651. 1.5 miles below Oricola road bridge. Wildcat Canyon. Comment
  CAS-BOT-BC362967  Rigiopappus leptocladus Alice Eastwood 1915-5-30 4486 Contra Costa Mt. Diablo Comment
  UC697154  Rigiopappus leptocladus Mary L. Bowerman 1935-4-22 2890 Contra Costa ridge w Pioneer Road (w of Old Stage Road); Mount Diablo 853 Comment
  CAS-BOT-BC362965  Rigiopappus leptocladus Brandegee No date on label s.n. Contra Costa Antioch Comment
  UC1818896  Rigiopappus leptocladus Barbara Ertter, Mary Bowerman et al. 1995-5-7 14063 Contra Costa Three-Springs Trail on NE side of Mt. Diablo SE of Clayton, small serpentine patch at road junction Comment
  CAS-BOT-BC74412  Rorippa curvisiliqua W. W. Carruth 1902-4-29 s.n. Contra Costa Mount Diablo. Comment
  UC2027956  Rorippa curvisiliqua Barbara Ertter with Joanne Kerbavaz 2000-8-20 17501 Contra Costa Frog Pond on southeast side of Mount Diablo. Comment
  UC1795617  Rosa Barbara Ertter 1993-4-2 11481 Contra Costa along railroad west of Crockett at west edge of Carquinez Straits Comment
  UC630419  Rosa californica Paule Guiguet and Annetta Carter 1939-8-13 1450 Contra Costa se Clayton; Mount Diablo drainage, Donner Creek 152 Comment
  CAS-BOT-BC148106  Rosa gymnocarpa Paul F. Covel 1936-4-19 209 Contra Costa Las Trampas Canyon Comment
  CDA23621  Rosa gymnocarpa D. G. Kelch, D. A. Weinstein 2008-4-15 8 .046 Contra Costa Carquinez Strait; S Port Costa along Mckewen Rd. Comment
  UC2027943  Rosa spithamea Barbara Ertter 1997-9-7 15798 Contra Costa North side Mount Diablo, Donner Canyon, Middle Trail at Falls Trail junction. Comment
  UC2028227  Rosa spithamea Barbara Ertter 1998-12-6 16470 Contra Costa Rock City area on southwest side Mount Diablo. Comment
  UC2027880  Rubus armeniacus Barbara Ertter with Mary Bowerman 1996-11-1 15404 Contra Costa North base of Mount Diablo, lower Donner Creek between trailhead and cabin site. Comment
  UC691164  Rubus discolor Mary L. Bowerman 1942-10-4 3853 Contra Costa Russelman Park road Mount Diablo Comment
  LA208234  Rubus parviflorus Joseph Andorfer Ewan; 1936-5-3 9499 Contra Costa Wildcat Creek near Arinda road bridge Comment
  UCD77977  Rubus pensilvanicus Robert E. Preston 2002-6-26 1891 Contra Costa Ca. 0.25 mi SW of Orwood, along Orwood Rd, near Old River 0 Comment
  CAS-BOT-BC147359  Rubus pensilvanicus Walter Knight; B. Mortensen; B. Atwater; R. Bensler; J. Dean 1979-4-13 3369 Contra Costa Alder Point. Browns Island Comment
  CAS-BOT-BC158774  Rubus ursinus Roxana S. Ferris 1924-4-13 4079 Contra Costa Mitchell Canyon, Mt. Diablo Comment
  JEPS99977  Rubus ursinus G. Smick 2003-6-6 GAS 212 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2032842  Rubus ursinus Doran, Andrew Scott 2012-3-20 713 Contra Costa North east side of Brooks Island Comment
  CAS-BOT-BC158772  Rubus ursinus Elsie Zeile 1910-4-2 s.n. Contra Costa Fish Ranch r. Comment
  JEPS112015  Rumex acetosella Dean G. Kelch and Andrew G. Murdock 2004-3-19 AGM 225 Contra Costa Luzon. Sycamore Ave. just east of Rodeo/Hercules where train crosses Hwy 4 (Luzon). Comment
  OBI70549  Rumex acetosella D. G. Kelch, D. A. Weinstein 2008-4-15 8 .042 Contra Costa Carquinez Strait: S Port Costa along Mckewen Rd 137 Comment
  UC1584691  Rumex acetosella Jerry Powell 1987-7-14 1508 Contra Costa Point Molate Beach Comment
  CAS-BOT-BC421866  Rumex acetosella Mary L. Bowerman 1935-5-18 3016 Contra Costa Mount Diablo. Road above Indian Ceremonial Spring: Roadbank at hairpin turn. Comment
  CAS-BOT-BC421739  Rumex conglomeratus Walter Knight 1965-9-7 1176 Contra Costa Antioch sand dunes. Comment
  CDA22902  Rumex crispus D. G. Kelch 2006-7-14 6 .33 Contra Costa Carquinez Strait; Along Marine Vista Ave immmediately west of Pacheco Slough. East of Martinez. Comment
  UC692157  Rumex pulcher Mary L. Bowerman 1938-5-28 3644 Contra Costa Maple Spring, upper margin Mount Diablo Comment
  UC1584824  Rumex salicifolius var. crassus Jerry Powell 1987-7-14 1501 Contra Costa Point Molate Beach Comment
  UC2012982  Rumex salicifolius var. salicifolius Barbara Ertter with Tony Morosco 1996-7-27 15030 Contra Costa Mount Diablo State Park, Donner Creek ca halfway between Regency Drive trailhead and old cabin site Comment
  CDA35214  Ruta chalepensis F. Brucato & G. Sorensen 1964-5-6 s.n. Contra Costa Brentwood, Deer Valley Road. 0 Comment
  CHSC116611  Sagina apetala Lowell Ahart; Josephine Guardino 2016-4-19 20774 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
  POM208488  Sagittaria latifolia H. M. Hall 1916-8-16 10273 Contra Costa Antioch. Region of San Francisco Bay. Comment
  CDA23459  Salicornia pacifica D. G. Kelch, A. G. Murdock 2003-8-13 3 .098 Contra Costa Carquinez Strait Region; Martinez Marsh. Comment
  UC204976  Salicornia subterminalis Katharine Brandegee Contra Costa Byron Hot Springs Comment
  UC7475  Salicornia virginica Hansen Sep 1899 Contra Costa Byron Springs Comment
  UC1949224  Salicornia virginica Barbara Ertter with Elizabeth Neese 1988-10-15 7974 Contra Costa W of I-580 in El Cerrito, W side along Rydin Road N of Central Avenue Comment
  UC69365  Salix Wm. W. Mott 1905-1-10 Contra Costa near Berkeley (n.e. corner of San Pablo Ave. & McAvoy Lane, opposite 7 Mile House) Comment
  CAS-BOT-BC103028  Salix bonplandiana Walter Knight; R. Bensler; B. Atwataer; J. Dean; B. Mortensen 1979-4-13 3367 Contra Costa Near South Landing. Browns Island Comment
  CAS-BOT-BC129922  Salix bonplandiana Barrett Anderson 1987-4-30 3488 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD. 125 Comment
  POM167728  Salix exigua H. P. Chandler 1901-3-22 860 Contra Costa Pacheco. Comment
  CAS-BOT-BC107875  Salix gooddingii Ira L. Wiggins 1930-4-18 4591 Contra Costa Jersey Island Comment
  UC407030  Salix gooddingii Ira L. Wiggins 1930-4-18 4603 Contra Costa levees, Jersey Isl. Jersey Isl. Comment
  CDA34023  Salix laevigata D. G. Kelch 2011-3-31 11 .079 Contra Costa Carquinez Region; Richmond; Hilltop Lake Park. Comment
  JEPS111537  Salix laevigata D. G. Kelch 2005-5-6 05 .221 Contra Costa Franklin Canyon; East of Christie Road. South of Route 4. Comment
  POM181440  Salix laevigata I. L. Wiggins 1930-4-18 4601 Contra Costa Jersey Island. Comment
  POM300613  Salix laevigata Mary L. Bowerman 1933-5-10 2067 Contra Costa Spring on ridge below Indian Ceremonial Spring. Mt. Diablo. 976 Comment
  SEINET3158569  Salix laevigata H. P. Chandler 1901-3-22 858 Contra Costa Pacheco Comment
  UC143135  Salix laevigata C. F. Baker 1908-4-28 2814 Contra Costa Mitchell Canyon Mt. Diablo, Mitchell Canyon Comment
Read comments
Aug 10 2008
  UC437379  Salix laevigata J. Burtt Davy 1895-4-13 1011 Contra Costa near Lafayette 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
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Jan 7 2016
  JEPS97546  Salix lasiolepis R. D. Stone 1981-3-23 341 Contra Costa Huckleberry Trail Oakland Hills, near Alameda-Contra Costa county line (NE of intersection of Skyline Blvd. and Snake Rd.) 396 Comment
  POM300610  Salix lasiolepis Mary L. Bowerman 1933-4-9 1830 Contra Costa Donner Canyon, W fork. Below Twin Peaks. Mt. Diablo. Comment
  POM300612  Salix lasiolepis Mary L. Bowerman 1931-2-8 512 Contra Costa Mt. Diablo. By road. 762 Comment
  UC1196651  Salix lasiolepis Joseph P. Tracy 1932-9-10 10785 Contra Costa Rodeo Creek Northern Coast Ranges (on Franklin Canyon Rd.) 60 Comment
  UC2032847  Salix lasiolepis Doran, Andrew Scott 2012-3-20 718 Contra Costa Southern part of Brooks Island, old quarry near gravel conveyer belt and grind house. Comment
  CAS-BOT-BC129562  Salix lasiolepis var. lasiolepis Alice Eastwood 1914-2-24 3728 Contra Costa Antioch Comment
  JEPS87926  Salpichroa origanifolia Barbara Ertter 1991-5-12 9818 Contra Costa sw corner El Cerrito (Point Isabel Regional Shoreline, near parking lot); San Francisco Bay, Point Isabel Regional Shoreline Comment
  UC1950181  Salsola soda Barbara Ertter with Elizabeth Neese 1988-10-15 7980 Contra Costa W of I-580 in El Cerrito, W side along Rydin Road N of Central Avenue Comment
  SBBG29850  Salvia columbariae L. S. Rose 1935-5-16 Contra Costa Mt Diablo Comment
  UC25708  Salvia columbariae W. L. Jepson May 23 1894-May 24 1894 Contra Costa Mt. Diablo; Mount Diablo Region Comment
  POM223332  Salvia columbariae L. S. Rose 1935-5-16 s.n. Contra Costa Mt. Diablo. Comment
  CAS-BOT-BC233288  Salvia mellifera Dr. A. Kellogg; W. G. W. Harford 1868-1-1 757 Contra Costa Diablo Comment
  CAS-BOT-BC233292  Salvia mellifera Alice Eastwood 1915-6-21 4736 Contra Costa San Leandro Comment
  HSC101955  Salvia mellifera Nikolaus Gillen, Michlle Bihler 2014-3-20 7 Contra Costa Mount Diablo State Park. Back Creek Trail. 340 Comment
  UC1124825  Salvia mellifera R. C. Wilson 1935-2-26 106 Contra Costa Mt. Diablo; Mt. Diablo Quad. 426 Comment
  UC25730  Salvia mellifera H. N. Bolander Apr 1866 6317 Contra Costa Mount Diablo Comment
  SEINET12273224  Salvia mellifera M. T. Doutt 1930-1 89 Contra Costa Marsh Creek Comment
  SEINET5570354  Salvia mellifera H. S. Gentry 1931-1 49 Contra Costa Collected near Buckle Point Mt. Diablo. Comment
  UC1125352  Sambucus mexicana C. M. Belshaw 1936-2-16 1593 Contra Costa 2 1/2 mi nne Orinda; Concord Quadrangle, Briones Valley Comment
  UCSB4634  Sanicula bipinnata Kamb, Peter; Chisaki, Francia 1950-3-18 Contra Costa Head of Pine Canyon, Mt. Diablo 533 Comment
  JEPS111603  Sanicula bipinnatifida D. G. Kelch 2003-3-21 03 .50 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  JEPS111611  Sanicula bipinnatifida D. G. Kelch 2004-3-5 04 .6 Contra Costa Martinez - Rankin Open Space 56 Comment
  UC691875  Sanicula bipinnatifida Mary L. Bowerman 1931-3-21 595 Contra Costa Mount Diablo, Sycamore Canyon Sycamore Canyon; Mount Diablo, Sycamore Canyon 350 Comment
  JEPS111604  Sanicula crassicaulis D. G. Kelch 2003-3-21 03 .57 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  UC579860  Sanicula crassicaulis Annetta Carter 1936-4-19 1123 Contra Costa San Francisco Bay, Red Rock Red Rock; San Francisco Bay, Red Rock Comment
  RSA0027881  Sanicula crassicaulis Barbara Ertter, Holly C. Forbes 1997-4-20 15563 Contra Costa North base of Mount Diablo, Eagle Peak Trail on NE side of Eagle Ridge below Twin Peaks. Comment
  UCD127982  Sanicula crassicaulis P. B. Kennedy 1925-4-26 s.n. Contra Costa near Sycamore Canon Trail, Mt. Diablo. Comment
  LA33017  Sanicula saxatilis Lincoln Constance; T. Morley, Ren Hwa. Shan, W. H. Wagner 1946-4-26 3036 Topotype Contra Costa Mount Diablo, summit SW of lookout 1158 Comment
  SD211529  Sanicula saxatilis Barbara Ertter, Brad Olson et al 1991-4-7 9728 Contra Costa Eagle Peak on Mount Diablo; scree slopes on East and Southwest side, especially in drainages 228 Comment
  UC735123  Sanicula saxatilis Lincoln Constance, T. Morley, R. H. Shan, W. H. Wagner 1946-4-26 3036 Contra Costa summit s.w. of lookout Mt. Diablo 1158 Comment
  UCD102394  Sanicula tuberosa Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Bald Ridge Trail. Bald Ridge. 880 Comment
  UC2029042  Sanicula tuberosa Barbara Ertter 2000-3-19 16895 Contra Costa Southwest side of Mount Diablo, Secret Trail between Barbecue Terrace Road and Wall Point Road. Comment
  UC692475  Saxifraga californica Mary L. Bowerman 1933-4-9 1837 Contra Costa w fork Donner Canyon; Mount Diablo, Donner Canyon 243 Comment
  SEINET12220596  Saxifraga californica H. M. Hall 1901-1 1633 Contra Costa region of San Francisco Bay Comment
  SEINET3819166 Image available Saxifraga virginiensis var. californica Lewis S. Rose 1932-3-26 32108 Contra Costa Nortonville. Comment
  CDA42438  Scandix pecten-veneris D. G. Kelch 2012-5-29 12 .091 Contra Costa Carquinez Strait Region; Point Pinole. Comment
  SEINET11754535  Schoenoplectus acutus var. occidentalis C. W. Sharsmith 1933-1 469 Contra Costa delta lands of Sacramento & San Joaquin rivers Comment
  CAS-BOT-BC111481  Schoenoplectus americanus Volney Rattan 1879-1-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC111464  Schoenoplectus californicus Walter Knight; Irja Knight 1977-6-18 s.n. Contra Costa On shore of San Joaquin River, Antioch sand dunes, Little Corral site. Comment
  POM181474  Schoenoplectus californicus I. L. Wiggins 1930-4-18 4592 Contra Costa Jersey Island. Comment
  CAS-BOT-BC111466  Schoenoplectus californicus Walter Knight 1978-8-27 3203 Contra Costa At reservoir's edge, Contra Loma Regional Park. 30 Comment
  RSA0026145  Schoenoplectus pungens var. pungens Barbara Ertter 1998-6-20 16239 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Alkali Pond at Wiget Lane entrance. 91 Comment
  UC1607653  Scirpus americanus Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10709 Contra Costa near w end of Browns Island n of Pittsburg (near confluence of Sacramento and San Joaquin Rivers, opposite Pittsburg Marina); Browns Island Comment
  CDA15249  Scirpus maritimus G. F. Hrusa, D. Crowe 1998-5-8 14380 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Comment
  CDA39127  Scirpus maritimus var. paludosus D. G. Kelch 2004-6-6 4 .23 Contra Costa Carquinez Strait Region; Martinez -- Train Station: In large fill area north of Frontage Road, east of Martinez and I-680. Comment
  CDA23594  Scirpus microcarpus D. G. Kelch 2007-9-8 7 .58 Contra Costa Carquinez Strait; Pinole Valley Park. Comment
  CDA39143  Scirpus microcarpus D. G. Kelch 2004-7-9 4 .308 Contra Costa Carquinez Strait; Martinez; Alhambra Creek, near Muir gravesite. Arroyo del Hambre. Comment
  JEPS116725  Scribneria bolanderi David Gowen 2006-4-22 545 Contra Costa Los Vaqueros Watershed. Chaparral area (Mallory Ridge?) just southeast of Morgan Territory Reg. Preserve. Comment
  UC2070589  Scrophularia californica Barbara Ertter 2003-3-28 18124 Contra Costa Round Valley Regional Preserve. Round Valley Creek at north end of Round Valley. 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
  UC565460  Scutellaria tuberosa Herbert L. Mason 1928-4-15 4342 Contra Costa top of Moraga Ridge Comment
  RSA0068478  Scutellaria tuberosa Katie Gallagher, Nick Jensen 2014-4-26 200 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  UC2029119  Scutellaria tuberosa Barbara Ertter with Dan Norris 2001-4-8 17585 Contra Costa Lime Ridge Open Space east of Walnut Creek. Comment
  UC2028307  Sedum radiatum Barbara Ertter, Susan D'Alcamo 1998-6-12 16196 Contra Costa East end Bald Ridge Trail W of Prospectors Gap on north side of Mount Diablo summit. Comment
  CAS-BOT-BC327445  Senecio flaccidus var. douglasii Lewis S. Rose 1955-10-17 55186 Contra Costa Antioch 15 Comment
  CAS-BOT-BC327443  Senecio flaccidus var. douglasii Walter Knight 1965-9-7 1173 Contra Costa Antioch 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-BC363700  Senecio hydrophilus Walter Knight; Joanne Dean 1978-8-14 3145 Contra Costa Browns Island Comment
  CDA7666  Senecio sylvaticus D. G. Kelch, A. G. Murdock 2005-5-13 5 .274 Contra Costa Carquinez Strait Region; Martinez - West: Ozol Rock and Scenic Drive. Comment
  CAS-BOT-BC364554  Senecio vulgaris Walter Knight 1965-3-1 911 Contra Costa Antioch dunes Comment
  POM181456  Senecio vulgaris Ira L. Higgins 1930-4-18 4597 Contra Costa Levee, n. end of Jersey Island. Comment
  CAS-BOT-BC80265  Sequoia sempervirens John Thomas Howell 1925-10-11 1500 Contra Costa Moraga Ridge, Oakland Hills Comment
  SEINET3876310 Image available Sequoia sempervirens Michael R. Tansey 1963-2-21 12 Contra Costa North end of Jewel Lake, Tilden Regional Park.; 0 152 Comment
  UCD92599  Setaria parviflora John Thomas Howell; Gordon H. True 1972-6-29 48933 Contra Costa Byron Hot Springs. Road southeast of Byron. Comment
  UC2012980  Setaria viridis Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14921 Contra Costa Northwest base of Mt. Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  CHSC116634  Sherardia arvensis Lowell Ahart; Josephine Guardino 2016-4-19 20802 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the sides of the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  UCR6068  Sidalcea malviflora Charles Prentiss 1966-4-5 07 Contra Costa San Francisco Bay Region, Tilden Park at Indian Camp, E facing slope across from tennis courts 168 Comment
  UC1607657  Sidalcea malviflora subsp. laciniata Barbara Ertter, Chris Thayer 1993-5-7 11704 Contra Costa ca 1/2 mi n Vollmer Peak (= Bald Peak, in East Bay Municipal Utilities District land, e of Tilden Park); n of Vollmer Peak (= Bald Peak), e of Tilden Park 457 Comment
  UC692614  Sidalcea malviflora subsp. laciniata Mary L. Bowerman 1933-4-22 1880 Contra Costa opposite Heather Farm (near the sulphur spring, Shell Ridge where the highway crosses; meadow); Mount Diablo, Shell ridge, oppos Heather Farm Comment
  OBI12311  Sidalcea malviflora subsp. laciniata G. Thomas Robbins, John Weiler 1959-5-23 4028 Contra Costa On the W side of Brooks Island, San Francisco Bay, Richmond Comment
  UC692409  Silene californica Mary L. Bowerman 1931-5-19 874 Contra Costa e-facing flank of main e branch Donner Canyon (Mount Diablo); , Donner Canyon Comment
  UC692651  Silene californica Mary L. Bowerman 1935-6-15 3138 Contra Costa crest of Eagle Point ridge at edge of chaparral and on margin of chaparral on w face..Arctostaphylos..Quercus burned in 1931 Mount Diablo, Eagle Point Ridge (are bordered by band Eriodictyon..) 792 Comment
  JEPS111785  Silene gallica D. G. Kelch 2004-4-30 04 .153 Contra Costa Mt. Wanda - Martinez 115 Comment
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Oct 13 2009
  JEPS99539  Silene gallica Mary L. Bowerman 1976-6-24 Contra Costa Mount Diablo, Fire trail from crest of Inner Black Hills to Sycamore Creek. Comment
  UC8497  Silene verecunda subsp. platyota Edw. L. Greene 1892-6-20 Contra Costa Mt. Diablo Comment
  UC10272  Sinapis alba F. T. Bioletti 1892-1 Contra Costa Byron Comment
  CAS-BOT-BC74934  Sinapis arvensis Ira L. Wiggins 1930-4-18 4611 Contra Costa Jersey Island. Comment
  RSA0027946  Sinapis arvensis Barbara Ertter 1998-4-4 15959 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, west base of northwestern-most ridge, around old orchard. Comment
  UC2028577  Sinapis arvensis Barbara Ertter, Holly Forbes 1997-4-20 15548 Contra Costa North base of Mount Diablo, trail to Back Creek from Mitchell Canyon trailhead. Comment
  CDA3865  Sisymbrium altissimum R. DeBoer, J. Moon 1961-4-18 Contra Costa Railroad yard, 101 Garrard Boulevard, Richmond. 0 Comment
  JEPS128771  Sisymbrium orientale Kevin Hintsa May 1995 Contra Costa Mount Diablo State Park, Bridal Nook Picnic Area. Comment
  SEINET12047240  Sisyrinchium bellum C. C. Getzinger 1964-1 23 Contra Costa Richmond, Arlington Blvd. at Patterson Circle 30 Comment
  UC2070662  Sisyrinchium bellum Barbara Ertter 2002-5-16 17861 Contra Costa Richmond Field Station (UC-Berkeley). Comment
  UC905261  Smilacina racemosa J. A. Rattenbury 1948-5-11 114 Contra Costa 1/2 mi e Oakland Tunnel (on s side of hwy above creek) 243 Comment
  UC2028094  Solanum americanum Barbara Ertter, Chris Thayer 1996-10-25 15384 Contra Costa West side of Mount Diablo, North Gate Road near ranches. Comment
  CDA34360  Solanum rostratum E. Finley 1986-8-26 s.n. Contra Costa Lake Cascade, Orinda. 0 Comment
  UC26238  Solanum umbelliferum J. Burtt Davy 1895-4-7 985 Contra Costa Antioch Comment
  UC691760  Solanum umbelliferum Mary L. Bowerman 1931-3-7 553 Contra Costa Mount Diablo, Upper end of South Road Mount Diablo; , South Road Comment
  CAS-BOT-BC231713  Solanum umbelliferum Paul F. Covel 1940-5-12 s.n. Contra Costa Summit, Mt. Diablo Comment
  POM204481  Solanum umbelliferum J. T. Howell 1933-5-14 11291 Contra Costa Hills east of St. Mary's college Comment
  POM215197  Solanum umbelliferum D. D. Keck 1933-11-2 2619 Contra Costa 1 mile SE of Oakley. Comment
  UC200706  Solanum umbelliferum Katharine Brandegee 1907-6-16 Contra Costa between Antioch and Marsh Creek Comment
  JEPS78880  Solidago velutina subsp. californica Edward Lee 1936-12-12 2608 Contra Costa s Berkeley Country Club Comment
  RSA0068482  Soliva sessilis Katie Gallagher, Nick Jensen 2014-4-26 193 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  UC2028182  Soliva sessilis Barbara Ertter 1998-5-3 16036 Contra Costa Above SW fork of Pine Creek at southwest base of Mount Diablo. Comment
  CDA29496  Sonchus asper D. G. Kelch, Troy MacGregor 2009-5-1 9 .269 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  POM181428  Sonchus oleraceus I. L. Wiggins 1930-4-18 4608 Contra Costa Jersey Island. Comment
  UC650555  Sonchus oleraceus Ira L. Wiggins 1930-4-18 4608 Contra Costa Jersey Island Comment
  UC691778  Sonchus oleraceus Mary L. Bowerman 1930-8-24 416 Contra Costa Mitchell Canyon , Mitchell Canyon (Mount Diablo) Comment
  UC691790  Sonchus oleraceus Mary L. Bowerman 1935-4-12 2813 Contra Costa North Road Mount Diablo (Mount Diablo) 198 Comment
  CAS-BOT-BC374594  Sonchus oleraceus R. E. Frenkel 1963-8-18 263 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  CAS-BOT-BC374741  Sonchus oleraceus Walter Knight 1965-3-1 s.n. Contra Costa Antioch dunes Comment
  UC1780870  Spartium junceum R. Schmid 2003-5-11 2003 -13 Contra Costa Wildcat Creek Trail, N side and NW end of (E of Belgium Trail) Wildcat Canyon Regional Park (NW of broad part of old paved road) 76 Comment
  UCD108505  Spartium junceum Rudolf Schmid 2003-5-11 2003 -13 Contra Costa Wildcat Canyon Regional Park, north side and northwest end (east of Belgium Trail) of Wildcat Creek Trail, northwest of broad part of old paved road. 76 Comment
  UC1795742  Spergularia bocconi Barbara Ertter, Mary Bowerman et al. 1995-5-7 14027 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, along road thru annual grassland with scattered blue oak south of Marsh Creek Road summit. 304 Comment
  HSC4245  Spergularia macrotheca Leo Koch 1940-6-5 1001 Contra Costa Saline flat 2 mi. S of San Rafael ferry dock Comment
  OBI17382  Spergularia macrotheca Robert F. Hoover 1967-4-28 10514 Contra Costa Byron Hot Springs Comment
  HSC4243  Spergularia macrotheca Greg Bos 1963-3-9 30 Contra Costa Point Isabel, Richmond 3 Comment
  CAS-BOT-BC390279  Spergularia macrotheca var. longistyla Alice Eastwood 1923-4-28 11667 Contra Costa Byron Springs Comment
  CDA24135  Spergularia marina D. G. Kelch 2006-7-14 6 .328 Contra Costa Carquinez Strait; Along Marine Vista Ave immmediately west of Pacheco Slough. East of Martinez. Comment
  RSA0098553  Spergularia marina J. M. Tucker 1963-4-12 3687 Contra Costa On west side of Holey Road, 3 miles southeast of Byron. Comment
  RSA0098554  Spergularia marina C. F. Baker 1903-4-27 2865 Contra Costa 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
  RSA0028903  Spergularia rubra Barbara Ertter, Dan Norris 1999-11-14 16852 Contra Costa Black Diamond Mines Regional Preserve, south of parking area for Somersville townsite. Comment
  RSA0098111  Spergularia rubra Mary L. Bowerman 1975-4-19 s.n. Contra Costa Mount Diablo. Mitchell Canyon. 256 Comment
  CDA22505  Stachys ajugoides var. rigida D. G. Kelch, D. A. Weinstein 2008-4-25 8 .077 Contra Costa Alvarado Park (west end of Wildcat Canyon Park) on north-facing hillside above Hindu temple in mixed scrub/grassland. Comment
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Jan 7 2016
  UC606760  Stachys ajugoides var. rigida Edward Lee 1936-4-19 2011 Contra Costa Red Rock, ne slope of island San Francisco Bay Comment
  POM312580  Stachys albens Malcolm A. Nobs, S. Galen Smith 1949-7-8 943 Contra Costa Otto s Black Bass Resort, 4 miles north of Kingston. Comment
  UC1191915  Stachys albens Malcolm A. Nobs, S. Galen Smith 1949-7-8 943 Contra Costa 4 mi n Kingston (Otto's Black Bass Resort) Comment
  SEINET5576095  Stachys bullata H. S. Gentry 1931-1 50 Contra Costa Collected near Buckle Point Mt. Diablo. Comment
  UC2055620  Stachys pycnantha Joseph Andorfer Ewan 1933-10-15 8043 Contra Costa Mt. Diablo 1066 Comment
  UC2055622  Stachys pycnantha Joseph Andorfer Ewan 1933-10-15 8035 Contra Costa SW slope Mt. Diablo. 1066 Comment
  UC2055623  Stachys pycnantha Joseph Andorfer Ewan 1933-10-15 8043 Contra Costa Mt. Diablo. 1066 Comment
  JEPS68979  Stellaria nitens Edward Lee 1935-3-29 1313 Contra Costa Nortonville Kirker Creek (s watershed of Kirker Creek) Comment
  CDA33818  Stellaria nitens D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .114 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  UC2027725  Stellaria pallida Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15508 a Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  CAS-BOT-BC375769  Stephanomeria virgata Peter Rubtzoff 1951-10-7 819 Contra Costa Along lower San Joaquin River, east of Antioch Comment
  UC691440  Stephanomeria virgata subsp. pleurocarpa Mary L. Bowerman 1930-8-31 441 Contra Costa s face Black Hills (roadside); Mount Diablo Comment
  JEPS20857  Streptanthus albidus W. L. Jepson 1899-4-19 13408 Contra Costa Las Trampas Ridge Comment
  CAS-BOT-BC87334  Streptanthus hispidus Paul F. Covel 1938-5-8 1510 Contra Costa Summit Mount Diablo (North Peak trail). Comment
  UC592151  Streptanthus hispidus H. L. Mason 1929-3-29 5120 Contra Costa Mount Diablo 762 Comment
  UC2042772  Stuckenia pectinata Barbara Ertter with Lynne Hosley 1992-8-29 11268 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, stock pond near junction of Eagle and Volvon trails at north end of preserve. Comment
  RSA0027710  Stuckenia pectinata Barbara Ertter, Chris Thayer 1996-10-25 15371 Contra Costa Northwest flank of Mount Diablo. Tick Pond at arc of Falcon Road between North Gate Road and Castle Rock. 183 Comment
  UC2028421  Stuckenia pectinata Barbara Ertter 2000-9-30 17533 Contra Costa West side Mount Diablo, pond on China Wall Road ca 1/2 mile NW of Macedo Ranch Comment
  UC2062677  Stuckenia striata Barbara Ertter 2005-8-15 18624 Contra Costa Antioch/Oakley Regional Shoreline, under south end of Antioch Bridge between Antioch and Oakley. Comment
  UC635477  Stylomecon heterophylla H. L. Mason 1928-4-29 4442 Contra Costa s slope Mount Diablo; s slope of Mount Diablo, Sycamore Canyon Comment
  UC767113  Stylomecon heterophylla R. F. Hoover 1938-5-4 3341 Contra Costa Marsh Creek Canyon Comment
  CAS-BOT-BC422911  Stylomecon heterophylla John Thomas Howell 1931-5-12 6480 Contra Costa North side of Mt. Diablo Comment
  SEINET12102844  Stylomecon heterophylla Ottley 1920-1 475 Contra Costa San Francisco Bay region, Mitchell Canyon, Mt. Diablo 305 Comment
  UC1005878  Symphoricarpos albus N. Floy Bracelin 1944-4-30 2674 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UCD80966  Symphoricarpos albus var. laevigatus Chuck Hughes 2008-7-10 49 Contra Costa Marsh Creek at County Jail on Marsh Creek Road. 179 Comment
  UC1076414  Symphoricarpos albus var. laevigatus Herbert L. Mason 1924-11-23 1158 Contra Costa Cashion Comment
  CAS-BOT-BC269693  Symphoricarpos mollis E. E. Stanford 1930-5-24 1509 Contra Costa Marsh Creek Canyon Comment
  CDA23107  Symphoricarpos mollis D. G. Kelch, D. A. Weinstein 2008-4-25 8 .084 Contra Costa Alvarado Park (west end of Wildcat Canyon Park) on north-facing hillside above Hindu temple in mixed scrub/grassland. Comment
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Jan 7 2016
  JEPS13647  Symphoricarpos mollis Mary L. Bowerman 1933-5-21 2159 Contra Costa s from Curry Canyon (Sycamore Canyon, ridge between two main forks); Mount Diablo, Sycamore Canyon 426 Comment
  UC1119949  Symphoricarpos mollis R. W. Lundh 1933-3-30 224 Contra Costa 1.5 mi nw Eastport; Concord Quad. 426 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
  UC2027883  Symphyotrichum subulatum Barbara Ertter with Chris Thayer 1996-10-25 15368 Contra Costa Northwest flank of Mount Diablo, east end Northgate Trail from North Gate Road to Diablo Foothills Regional Park. Comment
  SD175790  Symphyotrichum subulatum var. parviflorum D. G. Kelch 2006-9-15 06 472 Contra Costa Martinez, Waterfront Road Marina Dr., 100 m. west of Pacheco Slough. 2 Comment
  UCD159500  Symphyotrichum subulatum var. parviflorum D. S. Park 2010-9-11 250 -1 Contra Costa Waterfront Rd. Growing along roadside. Disturbed. Wet. 5 Comment
  UCD35996  Taraxia ovata Beecher Crampton 1949-4-21 426 Contra Costa Contra Costa County, city of Richmond, in vacant lot near Santa Fe Railroad, S. 14th Street. 7 Comment
  UC21431  Tauschia hartwegii Jos. Burtt Davy 1901-4-21 7045 Contra Costa Wildcat Canyon Comment
  UC691419  Tauschia hartwegii Mary L. Bowerman 1933-4-26 1936 Contra Costa North Peak Mount Diablo (ridge running se from the peak); , , ridge running se from peak 518 Comment
  CAS-BOT-BC447423  Tellima grandiflora Elsie Zeile 1909-4-18 s.n. Contra Costa Redwood Peak Comment
  UC2062659  Tetrapteron graciliflorum Barbara Ertter with Chris Thayer 2002-4-13 17829 Contra Costa North side of Mount Diablo. Comment
  UC1050709  Thalictrum aquilegifolium N. Floy Bracelin 1941-4-13 1143 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC88248  Thysanocarpus curvipes Alice Eastwood 1915-5-30 4554 Contra Costa Mount Diablo. Comment
  CAS-BOT-BC88262  Thysanocarpus curvipes Mrs. E. C. Wright 1917-6-1 s.n. Contra Costa Mount Diablo. Comment
  JEPS54176  Thysanocarpus curvipes W. L. Jepson 1922-5-23 9666 Contra Costa Mt. Diablo Comment
  UC691144  Thysanocarpus curvipes Mary L. Bowerman 1933-5-8 2031 Contra Costa flat n of Rock City camp grounds Mount Diablo; , n of Rock City camp grounds 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
  JEPS108228  Tonella tenella David Gowen 2005-5-6 284 Contra Costa Mt. Diablo State Park. Moist gravelly area ca 1/4 mile south of Prospectors Gap on North Peak Trail. 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
  JEPS63917  Toxicodendron diversilobum W. L. Jepson 1894-9-7 13913 Contra Costa Bald Peak near Berkeley; Bald Peak Comment
  SEINET5577082  Toxicodendron diversilobum H. S. Gentry 1931-1 56 Contra Costa Collected on Mt. Diablo near Buckle Point. Comment
  JEPS111695  Tragopogon porrifolius D. G. Kelch 2004-4-11 04 .74 Contra Costa Crockett - Crolona Heights Hillside above Rolf Drive. Lower Crolona heights 15 Comment
  UC2028405  Tragopogon porrifolius Barbara Ertter with Richard K. Brummitt 1998-5-16 16083 Contra Costa Lower Donner Canyon on north base of Mount Diablo, near Donner Cabin site Comment
  UC2042773  Trichostema lanceolatum Barbara Ertter with Lynne Hosley 1992-8-29 11263 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo Comment
  UC570718  Trichostema lanceolatum Herbert L. Mason 1923-11-12 854 Contra Costa Mount Diablo, middle slopes 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
  UC165584  Trifolium albopurpureum J. Burtt Davy 1895-1 930 Contra Costa Antioch Comment
  UC148547  Trifolium albopurpureum var. albopurpureum Katharine Brandegee 1909-4-24 Contra Costa Antioch Comment
  UC1795831  Trifolium albopurpureum var. albopurpureum Barbara Ertter, Brad Olson, Diane Lake 1996-4-14 14588 Contra Costa North Peak of Mt. Diablo; open rocky flats. 1097 Comment
  UC147749  Trifolium albopurpureum var. dichotomum Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette 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
  UC16605  Trifolium albopurpureum var. olivaceum W. H. Brewer 1862-4-30 1019 Contra Costa Camp 69 Walnut Creek Comment
  UC2070467  Trifolium albopurpureum var. olivaceum Barbara Ertter 2000-5-14 17002 Contra Costa Lower Donner Canyon on north side of Mount Diablo, junction of Donner Canyon, Cardinet Oaks and Meridian Ridge Roads. Comment
  UCSC008382  Trifolium amplectens Randall Morgan 1996-4-2 2851 Contra Costa North East side of Byron, Highway 17, North of Byron Hot Springs Road Comment
  JEPS107019  Trifolium bifidum var. decipiens J. Greenhouse with Kevin Hintsa 2004-4-5 5090 Contra Costa Mt. Diablo, lower summit parking area 1124 Comment
  SBBG29986  Trifolium bifidum var. decipiens J. T. Howell 1933-5-14 11264 Contra Costa hills E of St Mary's College Comment
  UC1130046  Trifolium bifidum var. decipiens C. M. Belshaw 1936-5-7 2042 Contra Costa 2 mi s San Ramon; Mt. Diablo quadrangle 274 Comment
  UC1618339  Trifolium bifidum var. decipiens Barbara Ertter, Chris Thayer 1993-5-7 11714 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
  UC692243  Trifolium bifidum var. decipiens Mary L. Bowerman 1933-5-21 2155 Contra Costa s Curry Canyon (nera Grape Spring); Mount Diablo Comment
  UC2028209  Trifolium bifidum var. decipiens Barbara Ertter 1998-5-3 16072 Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, near Wall Point. Comment
  UC2028114  Trifolium campestre Barbara Ertter with Richard K. Brummitt 1998-5-6 16095 Contra Costa Donner Canyon Trail near Regency Drive trailhead, north base of Mount Diablo. Comment
  CDA25739  Trifolium ciliolatum D. G. Kelch 2008-4-12 8 .037 Contra Costa Mt Diablo. Mitchell Canyon. Along road looping north of main Mitchell Canyon Rd. Comment
  CDA29796  Trifolium ciliolatum D. G. Kelch, Troy MacGregor 2009-5-1 9 .265 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  CHSC24925  Trifolium ciliolatum M. A Callahan 1976-4-15 20 Contra Costa Ca. 15 mi ne of house at 1976 Mohawk Dr. Pleasant Hill. 121 Comment
  POM19314  Trifolium ciliolatum Katherine Brandegee s.n. Contra Costa Antioch Comment
  UC555598  Trifolium ciliolatum H. L. Mason 1928-4-26 4383 Contra Costa Berkeley-Oakland HIlls Comment
  UC692252  Trifolium ciliolatum Mary L. Bowerman 1932-5-6 1422 Contra Costa Mitchell Canyon Mount Diablo Comment
  CDA33837  Trifolium ciliolatum D. G. Kelch 2010-5-15 10 .122 Contra Costa Mt. Diablo. Trail from Juniper Camp to Deer Flat. 0 Comment
  UC630976  Trifolium depauperatum var. amplectens unknown 1928-4-19 10043 Contra Costa near Golf Links; Byron Hot Springs Comment
  UC630932  Trifolium depauperatum var. depauperatum P. B. Kennedy 1928-4-19 10035 a 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
  PGM3951  Trifolium depauperatum var. depauperatum Vern Yadon 1998-4-26 Contra Costa Byron Hot Springs Rd near Airport, 1/4 mi fr end of Byron Hot Springs Rd Comment
  UCSC011137  Trifolium depauperatum var. laciniatum R. Morgan 2015-4-11 6740 Contra Costa Byron Comment
  UCSC011139  Trifolium depauperatum var. laciniatum Randy Morgan 1999-5-30 3509 Contra Costa Byron, Seed originally from Armstrong Road Comment
  CDA27934  Trifolium depauperatum var. truncatum D. G. Kelch, A. G. Murdock 2005-5-6 5 .229 Contra Costa Carquinez Strait Region; Franklin Canyon. East of Christie Road. South of Route 4. Comment
  UC165577  Trifolium depauperatum var. truncatum J. Burtt Davy 1895-1 938 Contra Costa Antioch Comment
  UC631080  Trifolium depauperatum var. truncatum P. B. Kennedy 1928-4-19 10045 Contra Costa Byron Hot Springs Comment
  UC683346  Trifolium depauperatum var. truncatum Edw. L. Greene 1895-4-7 Contra Costa near Antioch Comment
  POM18457  Trifolium dichotomum C. F. Baker 1903-4-27 2797 Contra Costa Byron. Comment
  CDA4276  Trifolium fragiferum D. G. Kelch, A. G. Murdock 2005-6-24 5 .389 Contra Costa Carquinez Strait Region; Franklin Canyon at McEwen Road. Comment
  JEPS65882  Trifolium fucatum W. L. Jepson 1923-4-22 9857 Contra Costa Mt. Diablo Comment
  JEPS73328  Trifolium fucatum Edward Lee 1935-3-29 1311 Contra Costa e Kirker Pass (Donovan Rd, w watershed of Kirker Creek) Comment
  UC1541574  Trifolium fucatum H. E. and S. T. Parks 1930-4-1 542 Contra Costa along hwy (in ditches); San Ramone Comment
  POM300704  Trifolium fucatum var. fucatum Mary L. Bowerman 1935-5-1 2940 Contra Costa West road 2.1 miles from entrance: Open grassy flat just below th road, by a hut. 183 Comment
  RSA90947  Trifolium fucatum var. fucatum J. T. Howell 1933-5-14 11237 Contra Costa St. Mary's College. Comment
  JEPS125941  Trifolium glomeratum D. W. Taylor 2001-4-26 17628 Contra Costa Orinda; hill slopes ca 0.3 air miles E of the junction of Bear Creek Road and Camino Pablo Comment
  CDA27956  Trifolium gracilentum D. G. Kelch, A. G. Murdock 2005-4-2 5 .106 Contra Costa Carquinez Strait Region; Alhambra Valley. EBMUD land. North of intersection of Alhambra Valley Road and Castro Ranch Road. Comment
  UC631032  Trifolium gracilentum Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  CDA23566  Trifolium hirtum D. G. Kelch, D. A. Weinstein 2008-4-2 08 .032-b Contra Costa Carqinez Strait; E Richmond. Hilltop Rd. Chevy s Hill. Comment
  JEPS100105  Trifolium hirtum G. Smick 2003-4-8 GAS 124 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CDA15258  Trifolium hybridum G. F. Hrusa, D. Crowe 1998-5-8 14389 Contra Costa Sacramento Delta; E end of Dow Chemical property in Pittsburg. 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
  UC1197238  Trifolium macraei J. P. Tracy 1900-3-24 623 Contra Costa 50 ft Point Richmond Comment
  UC16620  Trifolium microcephalum W. H. Brewer 1862-5-26 1164 Contra Costa near Mount Diablo Comment
  JEPS107129  Trifolium microdon Barbara Ertter, Lisa Schultheis 1995-4-27 14008 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; northwest side of open grassy ridge at end of Arbolado Dr. 121 Comment
  UC692255  Trifolium microdon Mary L. Bowerman 1933-5-17 2111 Contra Costa due s Olafson's barn (branch of Curry Canyon, on ridge between the two forks of the canyon); Mount Diablo Comment
  RSA0033854  Trifolium oliganthum Barbara Ertter 2003-3-28 18135 Contra Costa Round Valley Regional Preserve, mid Hardy Canyon along High Creek. 182 Comment
  UCR263551  Trifolium tomentosum Barbara Ertter 2002-5-8 17832 Contra Costa San Francisco Bay Region, Richmond Field Station 6 Comment
  PASA252  Trifolium tridentatum Annetta Carter 1929-3-31 Contra Costa Hills north of Mt. Diablo, near Clayton Comment
  CHSC20695  Trifolium willdenovii Robert A. Schlising 1962-4-7 2148 Contra Costa Coastal Range. Along roads near Antioch Reservoir. Comment
  UC579847  Trifolium willdenovii Annetta Carter 1936-4-19 1110 Contra Costa e side of island Red Rock Comment
  UC692241  Trifolium willdenovii Mary L. Bowerman 1930-6-5 251 Contra Costa 5.8 mi from entrance (w rd = n rd); Mount Diablo Comment
  UCD109865  Trifolium willdenovii Jo Nixon 1951-5-6 19 Contra Costa Green Ranch, Mt. Diablo. 609 Comment
  UC1818873  Triglochin maritima Barbara Ertter, Brad Olson 1994-5-7 12765 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge, edge of San Francisco Bay. Edge of marsh. Comment
  UC2028570  Triglochin scilloides Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15518 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  UC691520  Triodanis biflora Mary L. Bowerman 1933-5-18 2130 Contra Costa Mount Diablo Comment
  JEPS65194  Triphysaria pusilla L. R. Heckard 1971-4-15 2473 Contra Costa along Morgan Territory road 7 mi n of its intersection with Manning road e Mt. Diablo; e of Mt. Diablo 487 Comment
  UCD36927  Trisetum canescens Beecher Crampton 1956-5-14 3423 Contra Costa 2 miles west of Martinez, on road to Crockett. Comment
  UCD93500  Trisetum canescens Beecher Crampton 1956-5-14 3423 Contra Costa 2 miles west of Martinez, on road to Crockett. 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
  UC191739  Tropidocarpum capparideum Edward Lee Greene 1888-3-24 Contra Costa Byron Spring Comment
  SEINET8727865 Image available Tropidocarpum capparideum Robert F. Hoover 1936-1 806 Contra Costa Byron Hot Springs. Comment
  CAS-BOT-BC67405  Tropidocarpum gracile H. L. Mason 1932-3-20 6842 Contra Costa Antioch. Comment
  CAS-BOT-BC67410  Tropidocarpum gracile James McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  UC673302  Tropidocarpum gracile H. L. Mason 1932-3-20 6842 Contra Costa Antioch sand hills Comment
  UC673305  Tropidocarpum gracile H. L. Mason 1929-3-31 5152 Contra Costa sand dike along river at Antioch; San Joaquin River Comment
  UC691064  Tropidocarpum gracile Mary L. Bowerman 1931-3-29 614 Contra Costa at foot Cave Point Ridge; Mount Diablo, Riggs Canyon Comment
  UC857586  Tropidocarpum gracile Lewis S. Rose 1940-4-30 40249 A Contra Costa 5 mi e Clayton (fields); Marsh Creek 60 Comment
  UC1818859  Typha domingensis Barbara Ertter, Kristin Ertter 1995-7-11 14483 Contra Costa W side of Mount Diablo SW of Walnut Creek, lower end of Pine Pond 182 Comment
  UC2061510  Ulmus minor Dean G. Kelch 2016-4-30 16 .103 Contra Costa Carquinez Strait: Selby, west of Crockett. On west side of canyon near old dwelling foundation. Comment
  CAS-BOT-BC91089  Umbellularia californica Mrs. H. C. Cantelow 1937-2-22 s.n. Contra Costa Mount Diablo. Comment
  CAS-BOT-BC91092  Umbellularia californica Annetta Carter 1937-3-20 1224 Contra Costa Lake Orinda Road, two miles northwest of Orinda. 121 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
  UC588152  Umbellularia californica Annetta Carter 1937-3-20 1224 Contra Costa 2 mi nw of Orinda (Lake Orinda Road); Lake Orinda Road 121 Comment
  UC691943  Umbellularia californica Mary L. Bowerman 1930-8-31 453 a Contra Costa Mount Diablo, Sloan Road e of the Sloan place (Inner Black Hills) Mount Diablo Comment
  SEINET3150246  Uropappus lindleyi T. S. Brandegee sn Contra Costa Antioch Comment
  UC691467  Uropappus lindleyi Mary L. Bowerman 1933-5-2 1954 Contra Costa below Pionner Camp (Mount Diablo); Mount Diablo 762 Comment
  UC691783  Uropappus lindleyi Mary L. Bowerman 1957-5-2 1957 Contra Costa Pioneer Camp Mount Diablo 762 Comment
  UC691797  Uropappus lindleyi Mary L. Bowerman 1931-4-4 632 Contra Costa two mi by road from North Gate Mount Diablo (Mount Diablo); Mount Diablo Comment
  JEPS35632  Uropappus lindleyi W. L. Jepson 1896-5-31 Contra Costa Wild Cat Canyon Comment
  SBBG5572  Vaccinium ovatum J. M. Tucker 1946-3-14 1376 Contra Costa 150 yards S of summit of Redwood Peak Comment
  UC1121122  Vaccinium ovatum R. W. Lundh 1933-1-12 186 Contra Costa 0.5 mi s Round Mt.; Concord Quad. 609 Comment
  UC1714515  Verbascum blattaria unknown July 1892 Contra Costa Redwood Peak Comment
  POM312406  Verbena hastata Malcolm A. Nobs, S. Galen Smith 1949-7-8 942 Contra Costa Otto's Black Bass Resort, 4 miles north of Kingston. Comment
  JEPS81010  Verbena lasiostachys var. scabrida Edward Lee 1936-12-12 2609 Contra Costa just nw Berkeley Country club Comment
  UC139763  Verbena lasiostachys var. scabrida Katharine Brandegee 1907-7-4 Contra Costa Between Martinez and Port Costa Comment
  UC691535  Verbena lasiostachys var. scabrida Mary L. Bowerman 1930-6-28 393 Contra Costa Lower Silver Spring: Edge of marshy spot. Comment
  JEPS18890  Veronica peregrina subsp. xalapensis Rimo Bacigalupi with G. Thomas Robbins 1956-3-26 5524 Contra Costa 1.2 mi n of junction with Marsh Creek Road ( just n of Briones Valley, along the Deer Valley Road, in territory just s of Antioch,); Deer Valley Road 76 Comment
  UC650440  Veronica peregrina subsp. xalapensis Ira L. Wiggins 1930-4-17 4581 Contra Costa 1/4 mi s of Byron 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
  UC691563  Viburnum ellipticum Mary L. Bowerman 1933-5-19 2143 Contra Costa Sulphur Spring Canyon, e fork Mount Diablo 457 Comment
  UC1050076  Viburnum foetidum var. rectangulatum N. Floy Bracelin 1941-7-13 1476 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1050363  Viburnum trilobum N. Floy Bracelin 1943-7-25 2187 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CDA23061  Vicia americana D. G. Kelch, D. A. Weinstein 2008-4-25 8 .086 Contra Costa Alvarado Park (west end of Wildcat Canyon Park) on north-facing hillside above Hindu temple in mixed scrub/grassland. Comment
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Jan 7 2016
  UC2070474  Vicia americana Barbara Ertter 2003-3-28 18137 Contra Costa Round Valley Regional Preserve, mid Hardy Canyon along High Creek. Comment
  UC16943  Vicia americana var. americana H. P. Chandler 1900-3-17 Contra Costa Wildcat Canyon; Berkeley Hills Comment
  UC2028544  Vicia sativa subsp. nigra Barbara Ertter 1998-4-4 15945 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, grasslands SE of Indian Valley School. Comment