Search Results — 2000 specimen records retrieved (1363 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/consortium/).
 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
  UC1050725  Abelia triflora N. Floy Bracelin 1941-5-16 1126 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC2029096  Acacia cyclops Barbara Ertter 1990-10-14 9660 Contra Costa Point Isabel Regional Shoreline on San Francisco Bay in SW El Cerrito, at end of Rydin Road. Comment
  UC1050374  Acacia dealbata N. Floy Bracelin 1942-7-4 2174 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1719706  Acacia retinodes Barbara Ertter 1995-1-14 13922 Contra Costa N side of Cerrito Creek at edge of mall E of Pierce St. Comment
  JEPS44839  Acaena pinnatifida var. californica W. L. Jepson 1922-5-11 9639 Contra Costa North Berkeley Hills Comment
  UC1051142  Acer macrophyllum N. Floy Bracelin 1943-7-18 2560 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS42724  Acer negundo var. californicum W. L. Jepson 1908-8-16 3088 Contra Costa 2 mi w Walnut Creek; w of Walnut Creek Comment
  CHSC23362  Achillea millefolium Willis Ball 1975-4-19 520 Contra Costa Contra Loma Regional Park. In area #2. On n facing slope ca. 100 yds nw of boat ramp on w side of lake. 36 Comment
  CAS-BOT-BC29884  Achyrachaena mollis Alice Eastwood 1921-4-18 10250 Contra Costa Antioch Comment
  UCD164888  Achyrachaena mollis Henry House 1995-4-30 1995- 7 Contra Costa About 1 km west of Walnut Blvd., ca. 0.5 km south of Marsh Creek Rd. 60 Comment
  OBI48824  Achyrachaena mollis Joseph Andorfer Ewan 1935-5-26 9312 Contra Costa E slope Bald Peak, San Pablo Ridge 549 Comment
  UC1543174  Achyrachaena mollis Donald G. Nelson 1937-4-18 501 Contra Costa towards Tracy on Marsh Creek Road Byron Comment
  UCD128425  Achyrachaena mollis L. S. Smith 1916-5-10 s.n. Contra Costa Grand View Terrace, San Pablo. Comment
  UCD32385  Achyrachaena mollis Beecher Crampton 1950-4-22 529 Contra Costa above Sand Creek, on hills to north above Lone Tree Valley 106 Comment
  JEPS112352  Acmispon wrangelianus Dean G. Kelch and Andrew G. Murdock 2004-4-11 04 .061 Contra Costa Crockett - 5th St. Prairie, County: Contra Costa; 5th street Prairie, Crockett. Comment
  JEPS112367  Acmispon wrangelianus Dean G. Kelch and Andrew G. Murdock 2004-3-19 222 Contra Costa Luzon; County: Contra Costa; Sycamore Ave. just east of Rodeo / Hercules where train crosses Highway 4 (Luzon). Top of ridge to south of road. Comment
  UCD104491  Acmispon wrangelianus Morris Halperin 1929-4-21 s.n. Contra Costa Moraga Valley. Comment
  CDA19145  Acroptilon repens R. M. Case 2001-7-1 PDR P 088757 Contra Costa San Francisco Bay Region; In East Bay Municipal Utility District Water Department on Hookston Rd 1, Pleasant Hill. 0 Comment
  UCD128498  Acroptilon repens Collector unknown 1928-8-1 1428 Contra Costa Richmond. Comment
  POM339729  Actaea rubra subsp. arguta F. R. Fosberg 1969-8-13 51420 Contra Costa Canyon 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
  UC12009  Adenostoma fasciculatum W. L. Jepson 1891-5-23 Contra Costa Mt. Diablo Comment
  UC691158  Adenostoma fasciculatum Mary L. Bowerman 1933-2-4 1689 Contra Costa flats e. of Meridian-North Peak divide Mt. Diablo 822 Comment
  CAS-BOT-BC65622  Adiantum jordanii D. E. Breedlove 1970-4-18 17432 Contra Costa at the north edge of Lafayette above Laurel Drive 243 Comment
  JEPS112046  Adiantum jordanii D. G. Kelch 2005-5-1 05 .194 Contra Costa Crockett - Edwards Canyon 150 Comment
  JEPS112048  Adiantum jordanii D. G. Kelch 2005-1-21 05 .6 Contra Costa Crockett - West Valona Collected along railroad tracks in West Valona across from the decommissioned sewage treatment plant. On north-facing slopes with Quercus agrifolia and Heteromeles arbulifolia and Pinus pinea 8 Comment
  UC2061505  Ageratina adenophora Dean G. Kelch 2016-5-27 16 .132 Contra Costa Miller-Knox Hill. Comment
  JEPS36285  Agoseris grandiflora W. L. Jepson 1919-6-8 8329 Contra Costa Mt. Diablo Comment
  JEPS99561  Agoseris grandiflora Mary Bowerman 1995-7-2 Contra Costa Mount Diablo, (probably Back Canyon or foot trail to Donner Canyon). Comment
  SEINET209195 Image available Agoseris grandiflora W. L. Jepson 1922-5-26 Contra Costa North Berkely hills. Comment
  JEPS36323  Agoseris grandiflora var. grandiflora W. L. Jepson 1922-5-26 9674 Contra Costa grassy hills North Berkeley Hills Comment
  UC691457  Agoseris grandiflora var. grandiflora Mary L. Bowerman 1933-5-17 2107 Contra Costa branch of Curry due s Olafson's barn; Curry River 289 Comment
  UC691458  Agoseris grandiflora var. grandiflora Mary L. Bowerman 1935-5-30 3086 Contra Costa Eagle Point Ridge Mount Diablo, Eagle Point Ridge 274 Comment
  CAS-BOT-BC22969  Agoseris heterophylla H. M. Hall 1901-4-5 1726 Contra Costa Mt. Diablo 396 Comment
  CAS-BOT-BC22971  Agoseris heterophylla John Thomas Howell 1933-5-14 11260 Contra Costa Hills east of St. Mary's College Comment
  UC29357  Agoseris heterophylla var. heterophylla H. M. Hall 1901-4-5 1726 Contra Costa Mt. Diablo; San Francisco Bay region Comment
  JEPS36324  Agoseris hirsuta W. L. Jepson 1922-5-26 9673 Contra Costa North Berkeley Hills; Berkeley Hills (North) Comment
  UC29385  Agoseris retrorsa F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  UC691431  Agoseris retrorsa Mary L. Bowerman 1931-4-25 783 Contra Costa summit Meridian Peak; Mount Diablo Comment
  CDA15254  Agrostis avenacea G. F. Hrusa, D. Crowe 1998-5-8 14385 Contra Costa Sacramento Delta; Dow Ecological Reserve on Dow Chemical property at Pittsburg. Comment
  CDA29002  Agrostis avenacea D. G. Kelch 2006-11-11 06 .505-B Contra Costa Carquinez Strait; Along RR tracks N of Pt Pinole in swale W of RR. Comment
  UC1795693  Agrostis avenacea Barbara Ertter, Brad Olson 1994-5-7 12748 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  UC692381  Agrostis exarata Mary L. Bowerman 1933-8-26 2413 Contra Costa at and below Lower Canyon Spring; Mount Diablo 975 Comment
  UC1795795  Agrostis hallii Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14221 Contra Costa Mt. Diablo southeast of Walnut Creek, north-facing slope north of Curry Point, grassy semishade at edge of oak woodland. 518 Comment
  UC2013050  Agrostis hallii Barbara Ertter with Lisa Schultheis 1996-9-2 15278 Contra Costa South Side Mount Diablo Blackhawk Road east of Sycamore Creek Road. Comment
  UC2028399  Agrostis hallii Barbara Ertter with Dan Norris 1998-6-18 16217 Contra Costa Rock City area on south side of Mount Diablo, W Fossil Ridge Trail Comment
  UCD149001  Agrostis pallens D. Kelch; Suzanne Latham, Matt Beyers 2009-6-3 09. 335 Contra Costa El Sobrante Ridge at end of Silver Belt Dr. 198 Comment
  UC2028028  Aira caryophyllea var. caryophyllea Barbara Ertter 1997-9-14 15805 Contra Costa West side of Mount Diablo, Dusty Road at north end of Wall Point Ridge. Comment
  CAS-BOT-BC175356  Allenrolfea occidentalis C. Hart Merriam 1906-9-13 s.n. Contra Costa Byron Hot Springs Comment
  CDA23224  Allenrolfea occidentalis T. C. Fuller 1965-11-24 14321 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
  NY216671  Allenrolfea occidentalis R. F. Hoover 1937-8-31 2707 Contra Costa Byron Hot Springs. Comment
  UC116547  Allenrolfea occidentalis K. Brandegee 1885-1 Contra Costa near Antioch Antioch Comment
  UCR52247  Allenrolfea occidentalis E. E. Stanford 1930-5-24 1520 Contra Costa Near Byron 25 Comment
  JEPS108218  Allium amplectens David Gowen 2005-4-30 271 Contra Costa Morgan Territory Regional Preserve. Just east and outside the park along Manzanita Trail. Growing on very rocky east facing slope. Comment
  CAS-BOT-BC469113  Allium falcifolium Alice Eastwood 1915-5-30 4531 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC469114  Allium falcifolium Alice Eastwood 1915-5-30 s.n. Contra Costa Mt. Diablo Comment
  RSA178598  Allium falcifolium Le Roy Abrams 1921-5-25 8038 Contra Costa Summit, Mount. Diablo. Comment
  RSA59638  Allium falcifolium Verne Grant, Alva Grant 1950-5-13 8898 Contra Costa North slope of Meridian Peak. Comment
  CAS-BOT-BC472778  Allium neapolitanum Walter Knight 1979-4-12 3448 Contra Costa Grangers Wharf, Martinez Regional Shoreline Comment
  JEPS95266  Allium paniculatum var. paniculatum Doris E. Baltzo 1999-7-20 Contra Costa 2092 Ahneita Drive, Pleasant Hill Comment
  JEPS112498  Allium serra D. G. Kelch 2004-4-30 04 .151 Contra Costa Mt. Wanda - Martinez 180 Comment
  UC796584  Allium serra Reed C. Rollins 1946-3-25 3043 Contra Costa w slope of Mount Diablo Mount Diablo Comment
  CAS-BOT-BC475529  Allium serra Alice Eastwood 1922-5-21 11321 Contra Costa Arroya del Valle near Livermore Comment
  CAS-BOT-BC475536  Allium serra L. R. Abrams 1921-5-15 8052 Contra Costa At Spring 4 1/2 miles from Summit, Mt Diablo Comment
  RSA59637  Allium serra Verne Grant, Alva Grant 1950-5-13 8896 Contra Costa Saddle between N & Meridian peaks, Mt. Diablo. Comment
  UC2013015  Allium serra Barbara Ertter 1991-5-5 9782 Contra Costa Black Diamond Mines Regional Preserves S of Pittsburg, N-facing slope below Black Diamond Trail in SW corner of park. Comment
  UC692029  Allium serra Mary L. Bowerman 1932-4-16 1361 Contra Costa Eagle Point ridge n 1862 point (canyon between the two ridges); Mount Diablo, Eagle Point ridge Comment
  SEINET3151680  Allocarya stipitata L. S. Rose 1936-4-24 36155 Contra Costa 8 miles S of Antioch 30 Comment
  CAS-BOT-BC170931  Alnus rhombifolia Walter Knight 1965-3-1 910 Contra Costa Antioch Dunes, along water's edge - Carquinez Straights Comment
  CAS-BOT-BC170925  Alnus rhombifolia John Thomas Howell 1925-9-19 1474 Contra Costa East side of Moraga Ridge, Oakland Hills Comment
  POM300606  Alnus rhombifolia Mary L. Bowerman 1931-10-13 1058 Contra Costa Alamo Canyon. Mount Diablo. 259 Comment
  UC37122  Alopecurus saccatus W. H. Brewer 1862-5-1 1042 Contra Costa Walnut Creek Comment
  CDA20558  Alternanthera philoxeroides unknown 2005-6-23 s.n. Contra Costa San Francisco Bay Area; Garden weed in Danville, CA. 0 Comment
  UC691919  Amaranthus albus Mary L. Bowerman 1930-9-27 466 Contra Costa 2.25 mi by rd from Mt. Diablo north entrance (take trail by trough westerly, follow fence and go through, West Base spring); Mt. Diablo, West Base Spring Comment
  POM300587  Amaranthus albus Mary L. Bowerman 1932-8-27 1515 Contra Costa Pond south of Turtle Rock Comment
  UC2027846  Amaranthus albus Barbara Ertter, Mary Bowerman 1996-11-1 15402 Contra Costa North base of Mount Diablo, near Donner Canyon trailhead at end of Regency Drive. Comment
  UC2028370  Amaranthus albus Barbara Ertter 1998-6-20 16247 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Briones-Mount Diablo Trail SW of Old Borges Ranch Comment
  UC2027978  Amaranthus blitoides Barbara Ertter with Mary Bowerman 1996-11-1 15397 a Contra Costa North base of Mount Diablo, downstream from Mitchell Canyon parking lot. Comment
  UC691934  Amaranthus californicus Mary L. Bowerman 1935-9-13 3336 Contra Costa Hidden Pond Mount Diablo Comment
  SEINET3840793  Amaranthus deflexus Dean G. Kelch, Andrew G. Murdock 2005-6-27 5 .394 Contra Costa Carquinez Strait, Sixth street at Lillian Street in vegetable garden, Crockett, common garden weed 33 Comment
  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
  UC2028561  Amaryllis belladonna Barbara Ertter with Mary Barkworth 2000-9-24 17528 Contra Costa North side Mount Diablo, near former well at Donner Cabin site on Donner Creek. Comment
  CDA6723  Ambrosia trifida J. Clark, C. Beutler 1976-9-1 Contra Costa 2161 Youngs Court, Walnut Creek. 0 Comment
  JEPS45147  Amelanchier utahensis W. L. Jepson Oct 1909 3499 Contra Costa n end Moraga Ridge; Oakland Hills Comment
  UC1618292  Amelanchier utahensis Barbara Ertter, CNPS 1990-8-19 9624 Contra Costa s side of E arm of Briones Reservoir n of Orinda (along Bear Creek Trail on EBMUD land); Briones Reservoir, Bear Creek Trail Comment
  UCD33151  Ampelodesmos mauritanicus Beecher Crampton 1966-10-18 7816 Contra Costa Contra Costa County, Kensington, Berkeley Hills Blake Garden, UC Berkeley Dept. of landscape architecture. Comment
  CAS-BOT-BC222221  Amsinckia John Thomas Howell 1934-4-8 11814 Contra Costa 7 miles from Clayton on road to Livermore Comment
  CAS-BOT-BC222228  Amsinckia Alice Eastwood; John Thomas Howell 1936-4-19 2141 Contra Costa Somersville Comment
  CAS-BOT-BC222230  Amsinckia John Thomas Howell 1933-3-29 10910 Contra Costa Nortonville hills Comment
  CAS-BOT-BC222235  Amsinckia John Thomas Howell 1933-3-29 10912 Contra Costa Nortonville hills Comment
  UCD32491  Amsinckia Beecher Crampton 1950-4-22 522 Contra Costa Contra Costa County, above site of Judsonville, west of old Empire mine. 152 Comment
  UC615270  Amsinckia intermedia Beryl O. Schreiber 1932-3-27 130 Contra Costa near Mountain House Comment
  UC725373  Amsinckia intermedia A. A. Heller 1938-4-9 15016 Contra Costa 3 mi sw of Antioch Comment
  SD126014  Amsinckia intermedia Alfred Sattler 1972-4-2 16 Contra Costa Concord, Southeast corner of Wilson Lane and West Street Comment
  CAS-BOT-BC222461  Amsinckia lunaris Francia Chisaki; Peter Kamb 1952-5-4 2275 Contra Costa Bear Creek Road, 1.5 miles east of Orinda-Richmond road (leaving this road ca. 1 mile north of Orinda) Comment
  UC762084  Amsinckia lunaris R. F. Hoover 1939-4-24 4058 Contra Costa lower end of San Pablo Resevoir Comment
  JEPS25354  Amsinckia lycopsoides Rimo Bacigalupi with Paul C. Hutchison and John Weiler 1959-3-19 6964 Contra Costa 1.9 mi w Byron (at road summit along Camino Diablo) 54 Comment
  UC24591 Image available Amsinckia tessellata Brewer 1862-1 1119 Contra Costa near Mt. Diablo; ; near Mt. Diablo Comment
  UCSB39447  Amsinckia tessellata Fritzke, Sue 1980-3-1 Contra Costa Hills behind Walnut Heights Elementary School, off of Walnut Blvd., 1 mile east of intersection with Walker Rd. 121 Comment
  UC762817  Amsinckia tessellata var. gloriosa R. F. Hoover 1935-3-10 317 Contra Costa Kirker Pass Comment
  UCD164884  Anagallis arvensis Henry House 1995-5-16 1995- 11 Contra Costa About 100 m west of Walnut Blvd., ca. 1.25 km south of Marsh Creek Rd. 33 Comment
  CAS-BOT-BC46937  Androsace elongata subsp. acuta Mary L. Bowerman 1932-3-12 1116 Contra Costa Alamo Canyon, 50' above stream. 365 Comment
  UC1111009  Androsace elongata subsp. acuta Herbert L. Mason 1928-3-4 4166 Contra Costa Shell Ridge Comment
  CAS-BOT-BC400256  Anemopsis californica A. D. E. Elmer 1903-6-1 4870 Contra Costa Walnut Creek Comment
  JEPS12259  Anemopsis californica W. L. Jepson May 22 1891-May 23 1891 Contra Costa Mount Diablo Comment
  RSA293388  Anemopsis californica Reino Alava 1958-5-25 2074 Contra Costa 1.5 miles N of Dublin on the rd to Walnut Creek. Comment
  CDA1106  Angelica californica D. G. Kelch, A. G. Murdock 2003-8-13 3 .127 Contra Costa Carquinez Strait; Vaca Canyon. Comment
  JEPS111614  Angelica californica D. G. Kelch 2004-5-2 04 .166 Contra Costa Edwards Canyon, Crockett 125 Comment
  JEPS107105  Anthriscus caucalis Barbara Ertter, Lisa Schultheis 1995-4-27 14015 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; north-facing open brushy slope with scattered oaks along extension of Valley View road. 182 Comment
  JEPS111630  Anthriscus caucalis D. G. Kelch 2005-5-13 05 .261 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Area along Vista Road ~ 2.5 kiloms West of Martinez 45 Comment
  UC691891  Anthriscus caucalis Mary L. Bowerman 1932-5-6 1413 Contra Costa Mitchell Canyon floor Mitchell Canyon; Mount Diablo Comment
  SBBG33408  Antirrhinum vexillocalyculatum A. D. E. Elmer -Jun-1903 4809 Contra Costa Mount Diablo Comment
  UC1543249  Aphanes occidentalis Donald G. Nelson 1938-4-24 567 Contra Costa Marsh Creek Highway, 1 mile north of Mt. Diablo Comment
  UC692184  Aquilegia formosa Mary L. Bowerman 1931-5-23 896 Contra Costa Alamo Canyon 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
  POM203649  Aquilegia formosa var. truncata J. T. Howell 1933-5-14 11253 Contra Costa Hills east of St. Mary's college Comment
  UC10113 Image available Arabis breweri Wm. H. Brewer 1862-5-14 1086 Contra Costa rocky summit of Mt. Diablo on eastern peak Comment
  UC692480  Aralia californica Mary L. Bowerman 1933-6-21 2330 Contra Costa Donner Canyon Mt. Diablo, Donner Canyon 243 Comment
  UC692044  Arceuthobium campylopodum Mary L. Bowerman 1931-10-31 1064 Contra Costa south Rd near junction Mount Diablo 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-BC24114  Arctostaphylos auriculata Joanne Taylor 1941-7-18 16 Contra Costa Hills by Nortonville, dry rocky slopes in chaparral belt. 213 Comment
  JEPS38915  Arctostaphylos auriculata Mary L. Bowerman 1932-2-13 1086 Contra Costa on ridge between main forks of canyon Mount Diablo; , Alamo Canyon Comment
  NY8229  Arctostaphylos auriculata A. Eastwood 1903-2-22 3161 Contra Costa Mt. Diablo Comment
  POM300661  Arctostaphylos auriculata Mary L. Bowerman 1933-3-25 1772 Contra Costa Emmons Canyon: South-facing slope between the two forks, top of ridge (Pine Canyon ridge) Comment
  RSA164646  Arctostaphylos auriculata Percy C. Everett 1963-11-19 24550 Contra Costa Mt Diablo. 457 Comment
  RSA44371  Arctostaphylos auriculata L. S. Rose 1949-3-6 49004 Contra Costa Mt. Diablo, above Rock City. 518 Comment
  SBBG21400  Arctostaphylos auriculata V. Haraden 1941-7-18 13 Contra Costa near Nortonville 121 Comment
  UC692484  Arctostaphylos auriculata Mary L. Bowerman 1932-2-13 1086 Contra Costa on ridge between main forks of canyon Mount Diablo; , Alamo Canyon Comment
  UCD50259  Arctostaphylos auriculata H. A. Stout; T. C. Wainwright 1980-3-27 Contra Costa Mallory Ranch, ca. 1 mile east of Morgan Territory Road. 609 Comment
  UC1120326  Arctostaphylos glandulosa subsp. glandulosa H. A. Jensen 1938-10-27 454 Contra Costa head of Sycamore Creek Mount Diablo Quadrangle 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-BC24656  Arctostaphylos glauca Mary L. Bowerman 1933-3-11 1748 Contra Costa Mount Diablo, Fossil Ridge, outer s. face: In gully nw. of South Gate. Comment
  CAS-BOT-BC24657  Arctostaphylos glauca H. E. McMinn 1922-6-21 89 Contra Costa N. slope of Mt. Diablo. Comment
  CAS-BOT-BC24659  Arctostaphylos glauca H. E. McMinn 1922-10-17 411 Contra Costa From Mitchell Canyon, Mt. Diablo. Comment
  JEPS38917  Arctostaphylos glauca Mary L. Bowerman 1933-3-11 1748 Contra Costa in gully nw park entrance (outer s face of ridge); Mount Diablo, Rock City Ridge Comment
  RSA721734  Arctostaphylos glauca Barbara Ertter, Holy Forbes 1996-2-11 14548 Contra Costa North side Mount Diablo; Murchio Gap on Median Ridge Road. 732 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
  UC692233  Arctostaphylos glauca Mary L. Bowerman 1933-9-30 2450 Contra Costa e-facing slope of gully (where relatively narrow) below chaparral Mount Diablo Comment
  RSA0046800  Arctostaphylos glauca Mary L. Bowerman 1933-3-11 1748 Contra Costa Fossil Ridge, outer south face: In gully northwest of South Gate. Comment
  UC2028040  Arctostaphylos glauca Barbara Ertter 1998-3-7 15929 Contra Costa Southwest side of Mount Diablo, west-most knoll on Fossil Ridge, at end of fire road. Comment
  CAS-BOT-BC27256  Arctostaphylos laevigata Alice Eastwood 1922-3-17 11082 Contra Costa Mt. Diablo Comment
  SD49824  Arctostaphylos manzanita H. A. Jensen 1938-10-27 457 Contra Costa Mt. Diablo quadrangle, 1 mi. SW from Nortonville 380 Comment
  SEINET11977789  Arctostaphylos manzanita M. T. Doutt 1930-1 85 Contra Costa Marsh Creek Comment
  CAS-BOT-BC38876  Arctostaphylos manzanita subsp. laevigata L. R. Abrams 1910-10-8 4345 Contra Costa Mt. Diablo 548 Comment
  CAS-BOT-BC38879  Arctostaphylos manzanita subsp. laevigata H. E. McMinn 1923-3-6 884 Contra Costa Along roadside 1/4 (?) way from top of Mt. Diablo Comment
  CDA9746  Arctostaphylos manzanita subsp. laevigata D. G. Kelch, D. A. Weinstein 1995-3-6 s.n. Contra Costa Rock City. Mt. Diablo. Comment
  JEPS124461  Arctostaphylos manzanita subsp. laevigata Daniel Slakey with CNPS Volunteers 2015-6-29 137 Contra Costa Wall Point Rd, along a roughly 1 km stretch of road just west of Wall Point. Comment
  UC549575  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-3-19 674 Contra Costa Mount Diablo Comment
  UC549606  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-3-19 675 Contra Costa Mount Diablo Comment
  UC692217  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1932-1-30 1084 Contra Costa near firetrail w northeast fork of Sycamore Creek ((turn off ridge at fence where main ridge bends abruptly to north, follow fence)); Mount Diablo, Inner Black Hills Comment
  UC692218  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1931-12-17 1071 Contra Costa s face of ridge e Rock City (Dan Cook) Canyon; Mount Diablo, Rock City (Fossil) Ridge 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
  UCD51723  Arctostaphylos manzanita subsp. laevigata H. A. Jensen 1938-10-27 451 Contra Costa Head of Curry Canyon. 518 Comment
  UC692224  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1938-6-24 3693 Contra Costa road 8.9 mi from North Gate (crest of ridge above road, below Pines Picnic Area); Mount Diablo 792 Comment
  CAS-BOT-BC24385  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1932-1-23 1076 Contra Costa Mount Diablo, Sycamore canyon, east fork: near canyon bottom. Comment
  CAS-BOT-BC42230  Arctostaphylos pallida H. E. McMinn 1925-1-1 s.n. Contra Costa Head of San Leandro Creek Comment
  CAS-BOT-BC42234  Arctostaphylos pallida Walter Knight; Irja Knight 1980-3-16 3714 Contra Costa Sobrante Ridge between Heavenly Ridge Land and Castro Ranch Road. Comment
  SD107167  Arctostaphylos tomentosa subsp. crustacea Walter Knight 1980-3-6 3719 Contra Costa Redwood Regional Park, East Ridge Trail Comment
Read comments
Aug 10 2011
  UC549412  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-19 677 Contra Costa Rock City Mount Diablo Comment
  UC549440  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1935-10-21 550 Contra Costa Moraga Ridge Comment
  UC549444  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-2-15 606 Contra Costa Moraga Ridge Comment
  UC549463  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 630 Contra Costa Moraga Ridge Comment
  SD58208  Aristolochia californica L. J. Barker 1932-3-27 Contra Costa Orinda-Bear Valley road just over the divide on Pinole side. Comment
  RSA417142  Arnica discoidea Anstruther Davidson 1917-06 s.n. Contra Costa Mt. Diablo Comment
  UC29618  Arnica discoidea F. P. McLean 1875-3-1 Contra Costa Mt. Diablo Comment
  UC449651  Artemisia californica W. P. Taylor 1912-7-16 Contra Costa 2 mi sw Walnut Creek 121 Comment
  UC691664  Artemisia californica Mary L. Bowerman 1930-9-27 469 Contra Costa 2 mi from entrance to Mt. Diablo State Park (North Road); Mount Diablo Comment
  UC697130  Artemisia californica Mary L. Bowerman 1931-11-21 1069 Contra Costa e flank of Donner Canyon; Mount Diablo Comment
  JEPS99962  Artemisia douglasiana A. Langston 2003-7-28 AL 74 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1584696  Artemisia douglasiana Jerry Powell 1990-8-29 1591 Contra Costa Antioch National Wildlife Refuge Comment
  UC691721  Artemisia douglasiana Mary L. Bowerman 1930-8-24 414 Contra Costa Mitchell Canyon Mount Diablo, Mitchell Canyon Comment
  SEINET207365  Asclepias cordifolia Rimo Bacigalupi, G. Thomas Robbins 1956-5-11 5642 Contra Costa Franklin Canyon, 1/4 mile above (and northwest of) Glen Frazer Station on the Santa Fe Railway. 107 Comment
  UCD150890  Asclepias fascicularis James A. Neilson Jr. 1972-11-2 3600 Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 1 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
  UC2013060  Asclepias fascicularis Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14916 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek Comment
  SBBG93247  Asclepias vestita D. G. Nelson 1937-4-24 520 Contra Costa Marsh Crk Rd, between Byron and Clayton Comment
  RSA666355  Aster radulinus Barbara Ertter, Dianna Lake 1991-8-18 10675 Contra Costa Carquinez Strait Regional Shoreline east of Crockett, northeast of Bull Valley staging area Comment
  CAS-BOT-BC180527  Astragalus asymmetricus Ira L. Wiggins 1930-4-17 4562 Contra Costa Near Montain House, Altamont Pass. Comment
  UCD104630  Astragalus asymmetricus C. A. Hooper 1936-8-5 s.n. Contra Costa Pittsburg. Comment
  UC13345  Astragalus didymocarpus W. H. Brewer 1862-5-19 1115 Contra Costa n (Kirker Pass?) Kirker's Pass; n of Kirker's Pass Comment
  UC13350  Astragalus didymocarpus J. Burtt Davy 1895-4-7 934 Contra Costa Antioch Comment
  SEINET3127325  Astragalus didymocarpus var. didymocarpus Brandegee sn Contra Costa Antioch Comment
  UC13432  Astragalus gambelianus State Survey 1862-5-12 1071 Contra Costa Mt. Diablo Comment
Read comments
Jan 20 2011
  CAS-BOT-BC178472  Astragalus gambelianus H. L. Mason 1928-4-26 4380 Contra Costa Berkely - Oakland Hills Comment
  SEINET948569  Astragalus nigrescens Lincoln Constance, Carl W. Sharsmith, Howard S. Reed 1940-1 2572 Contra Costa Pine Canyon, base of Mount Diablo. 305 Comment
  CAS-BOT-BC193335  Astragalus tener var. tener Alice Eastwood 1914-3-14 3818 Contra Costa Byron Springs Comment
  UC1607661  Athysanus pusillus Barbara Ertter with Michelle Seidl 1992-3-14 10920 Contra Costa e of Mount Diablo (Morgan Territory Regional Preserve); Morgan Territory Regional Preserve Comment
  UC517970  Athysanus pusillus John Thomas Howell 1931-3-10 5754 Contra Costa 7 mi from Clayton (on Livermore Road, e side of Mount Diablo); Mount Diablo Comment
  JEPS108320  Athysanus pusillus David Gowen 2005-2-23 168 Contra Costa Mt. Diablo State Park. Juniper Trail just south of Silver Spring. Comment
  CDA9501  Atriplex argentea D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .228 Contra Costa Byron Airport. Comment
  RSA452691  Atriplex argentea E. E. Stanford 1930-08 1870 Contra Costa near Old River Comment
  CAS-BOT-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
  UCD148250  Atriplex coronata Robert E. Preston 2013-6-14 2912 Contra Costa 3.1 mi WSW of Byron, 0.25 mi E of Kellogg Creek. 66 Comment
  CAS-BOT-BC168540  Atriplex coronata John Thomas Howell 1930-9-28 5503 Contra Costa 5.4 miles from Byron on Marsh Creek Road Comment
  JEPS99040  Atriplex coronata Robert E. Preston & Eva Buxton 1994-8-4 618 Contra Costa 0.9 mi NW Marsh Creek Reservoir. 76 Comment
  POM181083  Atriplex coronata J. T. Howell 1930-9-28 5503 Contra Costa 5.4 miles from Byron on Marsh Creek Road. Comment
  UC110216  Atriplex coronata T. S. Brandegee May 1883 Contra Costa Marsh Creek Comment
  POM203039  Atriplex joaquinana J. T. Howell 1934-4-8 11823 Contra Costa South of Antioch, Contra Costa County Comment
  SEINET4136060  Atriplex prostrata Barbara Ertter, Elizabeth Neese 1988-10-15 7979 Contra Costa Salicornia marsh W of I-580 in El Cerrito, W side along Rydin Road N of Central Avenue.; 0 Comment
  UC1136330  Atriplex semibaccata H. S. Yates 1934-9-2 4064 Contra Costa 1 mi ne Danville; Mt. Diablo Quad., ne of Danville Comment
  RSA0029775  Atriplex semibaccata Barbara Ertter 1990-9-30 9655 Contra Costa SE of Hilltop Mall in N Richmond, near Day s Inn. Comment
  UCD97697  Atriplex semibaccata Clyde L. Elmore 1964-10-6 s.n. Contra Costa 1/2 mile south of Orwood Road, in Orwood Resort, 4-5 miles east of Brentwood. Comment
  CDA9509  Atriplex triangularis D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .236 Contra Costa CA Delta; Along Clifton Court Near Clifton Court Forebay. Comment
  UC53767  Avena barbata J. Burtt Davy May, 1898 Contra Costa Livermore Region Of Mount Diablo Comment
  CDA19825  Avena fatua P. Akers 2002-5-11 s.n.- 2 a Contra Costa Northern California; Mt Diablo Rd. 205 Comment
  RSA129571  Avena fatua R. W. Lundh 1933-3-25 218 Contra Costa 1 mi. W. & 1/2 N. of Lafayette Acalanes; Concord 213 Comment
  UC579865  Avena fatua Annetta Carter 1936-4-19 1129 Contra Costa Red Rock San Francisco Bay (nw slope near summit of island) Comment
  UCD38559  Avena fatua var. glabrata Beecher Crampton 1956-5-14 3418 Contra Costa 0.5 mile west of Martinez. Comment
  JEPS21278  Baccharis glutinosa J. Thomas Howell 1926-1-17 1627 Contra Costa between Cashion and Las Trampas Ridge Cashion Comment
  UC697205  Baccharis glutinosa Mary L. Bowerman 1938-9-17 3719 Contra Costa Willow Spring Comment
  JEPS104734  Baccharis pilularis John L. Morrison 1936-8-30 1848 Contra Costa Shasta Road, Wildcat Canyon Comment
  JEPS75551  Baccharis pilularis P. F. Yorks 1921-9-11 369 Contra Costa 1.6 km s, on Hampton Road in Hampton Road Natural Reserve Bear Creek Road ((n of Briones Reservoir)); Hampton Road Natural Reserve 180 Comment
Read comments
Dec 21 2009
  UC1119665  Baccharis pilularis R. W. Lundh Sep 1932 159 Contra Costa 1 mi n North Peak; Mt. Diablo Quad. 609 Comment
  SEINET11843057  Baccharis pilularis subsp. consanguinea Unknown 1983-1 4966 Contra Costa Castro Ranch Rd between Hillside St & Alhambra Valley Rd Comment
  UC30399  Baccharis salicifolia subsp. salicifolia H. N. Bolander 1866-4-1 6162 Contra Costa near Mount Diablo Comment
  UC691861  Baccharis salicifolia subsp. salicifolia Mary L. Bowerman 1931-5-2 798 Contra Costa Donner Canyon stream Mount Diablo 152 Comment
  JEPS102907  Balsamorhiza deltoidea Barbara Ertter with Holly Forbes 1997-4-20 15564 Contra Costa NE base of Eagle Ridge, Back Creek Trail to Coulter Pine Trail Mount Diablo 213 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
  UC2028394  Balsamorhiza deltoidea Barbara Ertter with Richard K. Brummitt 1998-5-13 16139 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, south leg of Loughler Loop Trail just west of pass over central ridge, NW-facing slope Comment
  UC691249  Barbarea orthoceras Mary L. Bowerman 1933-4-9 1841 Contra Costa Donner Canyon, west fork: By trail. Comment
  JEPS100152  Bellardia trixago G. Smick 2003-5-6 GAS 171 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC75785  Berberis pinnata H. E. McMinn 1925-3-15 1400 Contra Costa Sycamore Canyon. Comment
  UC692319  Berula erecta Mary L. Bowerman 1930-10-4 479 Contra Costa Mount Diablo, Maple Spring, by North Road Maple Spring; Mount Diablo, Maple Spring Comment
  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
  SEINET3386108 Image available Blennosperma californicum Lewis S. Rose 1933-3-10 33008 Contra Costa Marsh creek, open hillsides Comment
  CAS-BOT-BC492906  Blennosperma nanum Lewis S. Rose 1932-3-15 3279 Contra Costa Byron Comment
  JEPS25358  Blennosperma nanum var. nanum Rimo Bacigalupi with Paul C. Hutchinson and John Weiler 1959-3-19 6969 Contra Costa 1mi se, e of Byron Road Byron 6 Comment
  SD211539  Blennosperma nanum var. nanum Barbara Ertter 1992-3-8 10908 Contra Costa Byron Springs Road 4-5 miles South of junction with J4, near Armstring Road Comment
  CAS-BOT-BC127915  Blepharizonia laxa Brandegee s.n. Contra Costa Antioch Comment
  JEPS18819  Blepharizonia laxa R. F. Hoover 1937-9-2 2710 Contra Costa 1 mi s of Pittsburg Comment
  CAS-BOT-BC100340  Blepharizonia plumosa Miss H. A. Walker 1916-8-28 3922 Contra Costa Los Medanos, near Antioch Comment
  JEPS18818  Blepharizonia plumosa R. F. Hoover 1937-9-2 2708 Contra Costa Walnut Creek Comment
  JEPS19359  Blepharizonia plumosa H. M. Hall 1916-8-17 10275 Contra Costa Los Medanos Region of San Francisco Bay, Suisun Bay 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
  CAS-BOT-BC100332  Blepharizonia plumosa H. M. Hall 1916-8-17 10275 Contra Costa Los Medanos, Suisan Bay 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
  CAS-BOT-BC15966  Boechera breweri subsp. breweri A. D. E. Elmer 1903-6-1 5096 Contra Costa Mount Diablo. Comment
  SEINET3132246  Boechera breweri subsp. breweri M. S. Baker 1904-6-24 sn Contra Costa Near summit of Mt. Diablo, along Mitchel Canyon Trail. 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
  UCD140044  Bolboschoenus maritimus subsp. paludosus M. Wiesendanger 1926-6-1 1529 Contra Costa Richmond. Comment
  CAS-BOT-BC31391  Bolboschoenus robustus J. W. Congdon 1893-7-29 s.n. Contra Costa Martinez Comment
  HSC7467  Bolboschoenus robustus Leo Koch 1940-6-5 1004 Contra Costa Near highway, 2 mi. S of San Rafael ferry dock Comment
  UC2028510  Bolboschoenus robustus Barbara Ertter with Tony Morosco 1998-9-18 16432 Contra Costa West slope Lime Ridge Open Space northwest of Mount Diablo, just southeast of Ygnacio Valley Road, southwest of sand quarry Comment
  JEPS68954  Bowlesia incana Edward Lee 1935-3-10 1285 Contra Costa w Watershed of Kirker Creek (Kirker Pass, Donovan Road); Kirker Pass, Donovan Road Comment
  UC692369  Bowlesia incana Mary L. Bowerman 1931-3-21 591 Contra Costa Mount Diablo, Sycamore Canyon Sycamore Canyon; Mount Diablo, Sycamore Canyon Comment
  UC692372  Bowlesia incana Mary L. Bowerman 1933-4-22 1889 Contra Costa Mount Diablo, Curry-Cave Point Trail Mount Diablo; , Curry-Cave Point Trail 426 Comment
  UC1795724  Brachypodium distachyon Barbara Ertter, Mary Bowerman et al. 1995-5-7 14026 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, along road thru annual grassland with scattered blue oak south of Marsh Cr. Rd summit. 304 Comment
  UC2028400  Brachypodium distachyon Barbara Ertter with Dan Norris 1998-6-18 16222 Contra Costa Devil's Slide trail from Knobcone Point Road, south side of Mount Diablo 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
  CAS-BOT-BC106325  Brickellia californica Mary L. Bowerman 1931-9-27 1051 Contra Costa Mount Diablo - Road to Quicksilver Mine Comment
  RSA7210809  Briza maxima Barbara Ertter, Chris Thayer 1995-4-25 13999 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Black Hawk Ridge Rd at northeast FK of Sycamore Creek 396 Comment
  UCD32377  Briza minor Beecher Crampton 1950-4-20 518 Contra Costa Contra Costa County, 1 mile north of Richmond, along Santa Fe Railroad. 15 Comment
  JEPS127664  Brodiaea terrestris subsp. terrestris Barbara Ertter with David Gowen and Michael Park 2017-5-2 22808 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  SEINET7106148  Bromus carinatus Beecher Crampton 1960-3-29 5481 Contra Costa City of El Cerrito, corner of Carlon and Lassen Boulevards.; 0 Comment
  UCR152271  Bromus carinatus Beecher Crampton 1960-3-29 5481 Contra Costa city of El Cerrito, corner of Carlson Blvd. and Lassen St. 5 Comment
  UC53630  Bromus carinatus var. carinatus Joseph Burtt Davy 1900-3-24 6543 Contra Costa Potrero Comment
  CDA28880  Bromus diandrus D. G. Kelch 2006-5-7 6 .162 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  POM300672  Bromus diandrus Mary L. Bowerman 1932-4-27 1366 Contra Costa Oyster Ridge, south face of ridge west of Riggs Canyon Comment
  UC2032813  Bromus hordeaceus Doran, Andrew Scott 2012-3-20 683 Contra Costa North end of Brooks Island along ridge, cleared area northwest of caretakers residence. 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
  UCD58623  Bromus hordeaceus Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  JEPS100023  Bromus madritensis G. Smick 2003-3-27 GAS 96 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD59002  Bromus madritensis Beecher Crampton 1956-5-14 3395 Contra Costa Marsh Creek Road. 3.7 miles southeast of Clayton. Comment
  CDA29219  Bromus madritensis subsp. madritensis D. G. Kelch 2006-5-7 6 .143 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  UC2028491  Bromus madritensis subsp. madritensis Barbara Ertter 1998-5-3 16067 Contra Costa SE end of Wall Point Road on southwest flank of Mount Diablo Comment
  UC692347  Bromus madritensis subsp. rubens Mary L. Bowerman 1932-4-27 1385 Contra Costa canyon w of Riggs Canyon (Mount Diablo, Oyster Ridge); Mount Diablo, Oyster Ridge 335 Comment
  UC692348  Bromus madritensis subsp. rubens Mary L. Bowerman 1933-5-2 1944 Contra Costa below Pioneer Camp (Mount Diablo); Mount Diablo 762 Comment
  HSC9309  Bromus madritensis subsp. rubens Greg Bos 1963-4-10 74 Contra Costa El Cerrito Hills, E end 76 Comment
  SEINET10523815  Bromus rigidus Alan A. Beetle 1942-3-22 Beetle 2932 Contra Costa Brooks Island, San Francisco Bay, near Richmond. Comment
  POM300682  Bromus rubens Mary L. Bowerman 1932-4-27 1385 Contra Costa Oyster Ridge, south face, canyon west of Riggs Canyon; Chaparral-patch in Fork of canyon 335 Comment
  CDA8350  Bromus sterilis D. G. Kelch, A. G. Murdock 2005-5-13 05 .268-B Contra Costa Carquinez Strait; Martinez-West: Ozol Rock and Scenic Drive. Ozol rock in road cuts. 0 Comment
  CDA975  Bromus trinii D. G. Kelch 2005-6-14 05 .333-B Contra Costa East Bay; San Pablo. North Alvarado Park, south of San Pablo Dam Rd. Comment
  UC53715  Bromus trinii Jos. Burtt Davy 1900-3-24 6539 Contra Costa Point Richmond Comment
  CAS-BOT-BC185033  Calamagrostis rubescens Virginia E. Long 1933-6-14 222 a Contra Costa Mount Diablo. Inner Black Hills. 563 Comment
  CAS-BOT-BC185034  Calamagrostis rubescens Virginia E. Long 1933-6-14 222 a Contra Costa Mount Diablo. Inner Black Hills. 563 Comment
  CAS-BOT-BC233993  Calandrinia breweri R. F. Hoover 1939-4-13 4019 Contra Costa Head of Markley Canyon (west branch) Comment
  UC765774  Calandrinia breweri R. F. Hoover 1939-4-13 4019 Contra Costa head west branch Markley Canyon Comment
  CAS-BOT-BC438370  Calandrinia ciliata Alice Eastwood 1914-2-24 3741 Contra Costa Antioch Comment
  CDA932  Calandrinia ciliata D. G. Kelch 2005-2-13 05 .007-B Contra Costa Carquinez Strait; Upper Canada de Cierbo. Comment
  JEPS112038  Calandrinia ciliata D. G. Kelch 2004-3-5 04 .5 Contra Costa Martinez - Rankin Open Space Rankin Park, Martinez 56 Comment
  JEPS99971  Calandrinia ciliata G. Smick 2003-4-8 GAS 134 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC438365  Calandrinia ciliata unspecified No date on label s.n. Contra Costa Antioch Comment
  UC1795791  Callitriche heterophylla var. bolanderi Barbara Ertter, Mary Bowerman et al. 1995-5-7 14034 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, in water of pond west of road in grassy flat. Comment
  NY409592  Callitriche marginata B. J. Ertter 1989-4-5 8144 Contra Costa Alkali sink W and adjacent to Clifton Court Forebay, ca. 15 air miles SW of Stockton, near sea level Comment
  UC768643  Calochortus albus R. F. Hoover 1939-4-26 4067 Contra Costa Head of Markley Canyon (w branch) Markley Canyon Comment
  JEPS108220  Calochortus albus David Gowen 2005-4-30 275 Contra Costa Los Vaqueros Watershed. Hills above west side of valley at intersection of Round Valley and Morgan Territory Regional Preserves. Comment
  UC2028247  Calochortus argillosus Barbara Ertter, Mary Bowerman, Lisa Schultheis 1998-8-21 16404 Contra Costa North Gate Road on northwest flank of Mount Diablo, 1.6 miles south of park entrance kiosk (site of 16153). Comment
  UC2029142  Calochortus argillosus Barbara Ertter with Alan Prather 2003-6-7 18193 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, Valley View Trail at NE corner of park. Comment
  UC692000  Calochortus luteus Mary L. Bowerman 1930-6-18 334 Contra Costa Dan Cook Canyon, where C.C.C. Camp built later Mount Diablo Comment
  UCD164657  Calochortus luteus Henry House 1995-5-16 1995- 24 Contra Costa Adjacent to Highway 113, about 0.2 km south of Creek Road. 6 Comment
  CAS-BOT-BC490528  Calochortus luteus Mary L. Bowerman 1933-6-14 2281 Contra Costa Inner Black Hills west of 1970 Comment
  CAS-BOT-BC132493  Calochortus pulchellus D. E. Breedlove 1970-4-18 17425 Contra Costa At the north edge of Lafayette above Laurel Drive 243 Comment
  CAS-BOT-BC132494  Calochortus pulchellus R. F. Hoover 1968-5-16 11092 Contra Costa Upper Marsh Creek Comment
  JEPS17770  Calochortus pulchellus Alice Eastwood 1899-5-21 Contra Costa Mount Diablo Comment
  LA22451  Calochortus pulchellus Carl Purdy; 1899-5-15 sn Contra Costa Mt. Diablo Comment
  UCD139551  Calochortus pulchellus H. A. Stout; T. C. Wainwright 1980-4-13 3 Contra Costa Mallory Ranch, around 1/2 mile east of Morgan Territory road. 609 Comment
  JEPS112510  Calochortus superbus Christopher Thayer 1996-6-7 Contra Costa Oursan Trail above Hampton rd. East Bay Municipal Utility District property Comment
  JEPS17793  Calochortus umbellatus W. L. Jepson 1899-4-19 Contra Costa Las Trampas Canyon Comment
  UCD67580  Caltha palustris E. Dean; with Thomas Starbuck 1993-5-1 359 Contra Costa Oakland hills, canyon E of Skyline Blvd., growing in stream that separates Huckleberry Preserve from Sibley Volcano Park, along Skyline Trail, near old homestead site. Comment
  POM195651  Calycadenia hispida H. M. Hall 1916-8-16 10274 Contra Costa Horse Valley, 9 km south of Antioch Comment
  UC697173  Calycadenia truncata Mary L. Bowerman 1931-9-12 1040 Contra Costa Mitchell Canyon, spur jutting into w fork Mount Diablo, Mitchell Canyon 838 Comment
  CAS-BOT-BC275399  Calycadenia truncata var. truncata L. R. Abrams 1910-10-8 4338 Contra Costa Mount Diablo 701 Comment
  CAS-BOT-BC224749  Calystegia malacophylla subsp. pedicellata Alice Eastwood 1915-5-30 4538 Contra Costa Mt. Diablo Comment
  RSA710258  Calystegia malacophylla subsp. pedicellata R. K. Brummitt, J. L. Strother, B. G. Baldwin 1997-5-27 19606 Contra Costa Mt. Diable, W side, Deer Flat Road. 800 Comment
  UC691852  Calystegia malacophylla subsp. pedicellata Mary L. Bowerman 1935-5-25 3072 Contra Costa s summit (Mount Diablo); Mount Diablo 1082 Comment
  CDA39897  Calystegia purpurata subsp. purpurata A. G. Murdock 2003-6-2 79 Contra Costa Carquinez Strait Region; Franklin Canyon - McHarry Ranch Rd. Comment
  UCD150753  Calystegia sepium James A. Neilson Jr. 1972-11-2 3612 Contra Costa 2 miles NW of Concord, at intersection of Hwy 4 and Walnut Creek. 7 Comment
  JEPS111813 Image available Calystegia sepium subsp. binghamiae A. G. Murdock 2004-6-4 321 Contra Costa Pacheco Marsh 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
  CAS-BOT-BC202026  Calystegia sepium subsp. limnophila J. W. Congdon 1893-7-30 s.n. Contra Costa Martinez Comment
  CAS-BOT-BC209525  Calystegia sepium subsp. limnophila Ira L. Wiggins 1954-9-5 13123 Contra Costa Levee along Bethel Island Comment
  CAS-BOT-BC418632  Calystegia sepium subsp. limnophila R. K. Brummitt; B. Ertter 2012-6-16 22059 Contra Costa Antioch, beside Plaza, at water's edge at upper end of Suisun Bay Comment
  CDA15226  Calystegia sepium subsp. limnophila G. F. Hrusa, D. Crowe 1998-5-8 14355 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg. Comment
  CDA15288  Calystegia sepium subsp. limnophila G. F. Hrusa, D. Crowe, R. York 1998-7-17 14728 Contra Costa Sacramento Delta; Betw. Dow Ecological Reserve and San Joaquin R. Sheet 1 of 2. Comment
  UC1794958  Calystegia subacaulis R. K. Brummitt and B. Ertter 1998-5-13 19841 Contra Costa S of Antioch, Black Diamond Mine Regional Park. Comment
  UC1794986  Calystegia subacaulis subsp. subacaulis R. K. Brummitt and B. Ertter 1998-5-6 19788 Contra Costa Mt. Diablo, NE side, Donner Track 400 Comment
  UC2028171  Calystegia subacaulis subsp. subacaulis Barbara Ertter 1998-5-3 16069 Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, between Wall Point and Secret Trail junction. Comment
  POM31989  Camissonia campestris subsp. campestris C. F. Baker 1903-4-28 2807 Contra Costa Antioch Comment
  RSA181415  Camissonia campestris subsp. campestris James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  UC140592  Camissonia campestris subsp. campestris C. F. Baker 1903-4-28 2807 Contra Costa in sandhills Antioch Comment
  UC635287  Camissonia campestris subsp. campestris H. L. Mason 1929-3-31 5153 Contra Costa Antioch San Joaquin River (sand dike along river) Comment
  UC2070452  Camissonia contorta Barbara Ertter with Dan Norris 2001-4-8 17599 Contra Costa Lime Ridge Open Space east of Walnut Creek. Comment
  JEPS107069  Camissonia intermedia Barbara Ertter, Chris Thayer 1995-4-25 13989 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Devil's Slide area of Sycamore Canyon, roadside through chaparral zone. 304 Comment
  RSA41303  Camissonia micrantha Robert F. Hoover 1935-3-10 314 Contra Costa Antioch sand-dunes Comment
  JEPS44361  Camissoniopsis intermedia W. L. Jepson 1921-11-19 9520 Contra Costa Mt. Diablo Comment
  UC20498  Camissoniopsis micrantha W. H. Brewer 1862-4-24 988 Contra Costa Camp 68 Martinez Comment
  UC20644  Camissoniopsis micrantha W. H. Brewer 1862-5-22 1137 Contra Costa hills s Coal Mines (ne of Mt. Diablo) Comment
  UC35344  Camissoniopsis micrantha Chesnut and Drew 1889-4-18 Contra Costa Sand Hills Antioch Comment
  JEPS6159  Campanula exigua Mary L. Bowerman 1930-6-14 330 Contra Costa Meridian Peak summit; Mount Diablo Comment
  UC1051246  Campanula isophylla N. Floy Bracelin 1942-9-9 2279 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CDA23569  Capsella bursa-pastoris D. G. Kelch 2008-3-3 8 .031 Contra Costa Carquinez Strait; Crockett. Under Zampa (Carquinez) Bridge. Comment
  CAS-BOT-BC37392  Cardamine californica John Thomas Howell 1931-3-10 5757 Contra Costa East side of Mount Diablo 7 miles from Clayton. Comment
  UC2028278  Cardamine californica Barbara Ertter 1999-3-21 16490 Contra Costa NW corner of Miller Knox Regional Shoreline, Potrero Hills SW of Richmond; abandoned trail on north side of crest. Comment
  POM203648  Cardamine californica var. integrifolia J. T. Howell 1933-5-14 11255 Contra Costa Hills east of St. Mary s college Comment
  UC1606309  Cardamine hirsuta Barbara Ertter 1993-2-28 11461 Contra Costa edge Vollmer Peak Trail (Tilden Regional Park in Berkeley Hills, above steam trains); Tilden Regional Park in Berkeley Hills Comment
  CDA33553  Cardaria chalepensis Guise/McClure 2010-5-24 PDR# 1645228 Contra Costa Pleasanton; Old School Road. 0 Comment
  RSA720841  Cardaria draba Barbara Ertter, Richard K. Rabeler 1994-6-6 12819 Contra Costa Point Isabel in south Richmond; S of Central Avenue. Comment
  POM351433  Carduus pycnocephalus B. C. Templeton 1962-6-10 s.n. Contra Costa Mt Diablo. Comment
  CAS-BOT-BC281739  Carduus pycnocephalus Mary L. Bowerman 1935-5-25 3079 Contra Costa Mount Diablo. North Rd 2.4 miles from entrance (by shepherd's camp) 304 Comment
  UC691372  Carduus pycnocephalus subsp. pycnocephalus Mary L. Bowerman 1935-6-28 3179 Contra Costa about the corral of the Old Sloan place (Inner Black Hills); Mount Diablo, Inner Black Hills Comment
  CDA9484  Carduus tenuiflorus D. G. Kelch, Abigail Moore, Michael Park 2007-5-1 7 .209 Contra Costa Byron Airport. Comment
  UC691373  Carduus tenuiflorus Mary L. Bowerman 1934-6-9 2547 Contra Costa bend by sign reading 4.4 mi to summit Diablo Trail sign (South Road); Mount Diablo 304 Comment
  CAS-BOT-BC281803  Carduus tenuiflorus David Keck 1941-6-5 5312 Contra Costa Berkeley Hills, Fish Creek Rd, 0.25 mile W of E portal of Broadway Tunnel 335 Comment
  CAS-BOT-BC281804  Carduus tenuiflorus David Keck 1941-6-5 5312 Contra Costa Berkeley Hills, Fish Creek Rd, 0.25 mile W of E portal of Broadway Tunnel 335 Comment
  CDA32069  Carex barbarae D. G. Kelch 2006-3-18 6 .105 Contra Costa 2 km N-NW of Orinda Village. NW of corner of San Pablo Dam Rd & Bear Valley Rd. 0 Comment
  UC593504  Carex densa G. L. Stebbins Jr. 1936-5-9 1554 Contra Costa e side of Wildcat Canyon Berkeley Hills, Wildcat Canyon Comment
  CAS-BOT-BC34930  Carex densa Mary L. Bowerman 1934-4-21 2531 Contra Costa Mount Diablo. Canyon Nook at junction of North and South Roads. Comment
  UC2070640  Carex nudata Barbara Ertter 2002-8-24 18033 Contra Costa Lower Perking Canyon on NE base of Mount Diablo. Comment
  RSA0027703  Carex praegracilis Barbara Ertter 2001-5-10 17638 Contra Costa south side of Mount Diablo, Sulphur Spring tributary of west fork Sycamore Creek, ca 0.25 mi from Madrone Canyon Trail. Comment
  CAS-BOT-BC117547  Carex serratodens Lewis Samuel Rose 1935-5-16 35163 Contra Costa Mt. Diablo. Comment
  UC692012  Carex serratodens Mary L. Bowerman 1935-5-8 2969 Contra Costa 2 mi <West> entrance (West road, gully w of chaparral); Mount Diablo 213 Comment
  UC692013  Carex serratodens Mary L. Bowerman 1932-11-19 1653 Contra Costa Elder Spring Mount Diablo Comment
  JEPS25119  Carex subbracteata G. Thomas Robbins 1959-4-18 3985 Contra Costa 1/2 mi e Pt. San Pablo (overlooking San Pablo Bay); San Pablo Bay, Richmond 7 Comment
  RSA0029049  Carex subbracteata Barbara Ertter 1999-3-21 16491 Contra Costa NW corner of Miller Knox Regional Shoreline, Potrero Hills SW of Richmond. Abandoned trail on north side of crest. Comment
  CAS-BOT-BC115559  Carex tumulicola Walter Knight; Irja Knight 1967-7-9 2067 Contra Costa Regional Parks Botanic Cargen. Comment
  JEPS119399  Carex tumulicola J. Greenhouse with A. Doran, D. Kelch, H. Bartosh, J. Game, et al. 2012-3-20 5142 Contra Costa Brooks Island Comment
  UC1050822  Castilleja affinis N. Floy Bracelin 1941-6-1 1350 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS75506  Castilleja affinis subsp. affinis P. F. Yorks 1974-5-19 161 Contra Costa ca 1.9 km s Bear Creek Rd on Hampton Rd in Hampton Rd Natural Reserve (n of Briones Reservoir) 200 Comment
  UC27158  Castilleja ambigua subsp. ambigua Jos. Burtt Davy 1900-6-7 6666 Contra Costa Martinez Comment
  HSC101960  Castilleja applegatei subsp. martinii Nikolaus Gillen, Michelle Bihler 2014-3-20 12 Contra Costa Mount Diablo State Park. Eagle Peak Trail. 649 Comment
  UCSB39456  Castilleja applegatei subsp. martinii Fritzke, Sue 1980-3-29 Contra Costa 0.5 miles from the east end of Ball Rd., in the Shell Ridge Open Space Area, SE of the rock quarry 124 Comment
  JEPS9949  Castilleja attenuata W. L. Jepson 1923-4-22 9873 Contra Costa Mt. Diablo Comment
  UC691581  Castilleja attenuata Mary L. Bowerman 1933-5-4 1990 Contra Costa Rock City Ridge (= Fossil Ridge); Mount Diablo Comment
  UC1819047  Castilleja attenuata Barbara Ertter, Lisa Schultheis 1995-4-27 14004 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
  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
  UC691573  Castilleja rubicundula subsp. lithospermoides Mary L. Bowerman 1931-5-21 884 Contra Costa w of Curry-Cave Point trail; Mount Diablo 548 Comment
  SEINET3839756  Castilleja rubicundula subsp. lithospermoides Unknown 1996-4-26 Contra Costa Franklin Canyon Road near the junction with McEwan Road in grassland Comment
  UC41762  Castilleja subinclusa subsp. franciscana J. P. Tracy 1900-3-24 616 Contra Costa Point Richmond; San Francisco Bay Region 15 Comment
  UC64223  Castilleja subinclusa subsp. franciscana H. M. Hall 1901-3-17 Contra Costa Point Richmond; San Francisco Bay Region Comment
  RSA517383  Castilleja wightii L. R. Heckard 1973-6-6 3421 Contra Costa North-facing slope. Ravine behind La Moine Park (Richmond). 122 Comment
  SEINET10582750  Castilleja wightii Lawrence R. Heckard 1973-6-6 Heckard 3421 Contra Costa Ravine behind La Moine Park (Richmond). 122 Comment
  CDA43391  Caulanthus flavescens Mike Pitcairn & Dean Kelch 2015-3-6 s.n. Contra Costa Overlook Trail, Black Diamond Mines, East Bay Regional Parks. Comment
  CDA24865  Caulanthus flavescens Jim Jokerst 1989-3-31 3078 Contra Costa East of creek in Brushy Creek Canyon. 0 Comment
  CAS-BOT-BC40513  Caulanthus lasiophyllus Alice Eastwood 1914-3-14 3814 Contra Costa Byron Springs. Comment
  JEPS116912  Caulanthus lasiophyllus David Gowen 2009-4-4 978 Contra Costa West face near summit of hill east of Las Trampas Ridge, just northwest of junction of Del Amigo and Sulpher Springs trails. Comment
  CAS-BOT-BC48831  Ceanothus cuneatus W. W. Carruth 1902-3-1 s.n. Contra Costa Pine Ridge Moraga Valley Comment
  CAS-BOT-BC48841  Ceanothus cuneatus Alice Eastwood 1922-3-17 11080 Contra Costa Mt. Diablo Comment
  JEPS42089  Ceanothus cuneatus var. cuneatus W. L. Jepson 1923-3-11 9847 Contra Costa Black Hills Mt. Diablo Comment
  UC692610  Ceanothus cuneatus var. cuneatus Mary L. Bowerman 1931-2-28 527 Contra Costa near top of South Rd Mount Diablo Comment
  JEPS42180  Ceanothus oliganthus var. sorediatus W. L. Jepson 1918-6-3 7586 Contra Costa Donner Canyon Mt. Diablo Comment
  JEPS42198  Ceanothus oliganthus var. sorediatus W. L. Jepson 1916-7-16 6814 Contra Costa Oakland hills Comment
  CDA7090  Centaurea calcitrapa T. C. Fuller 1961-9-13 7000 Contra Costa Highway J4, ca. 4 miles southeast of Byron. 0 Comment
  UC2013017  Centaurea calcitrapa Barbara Ertter with Laura Fujii 1990-7-21 9400 Contra Costa Briones Regional Park, Briones Hills W of Pleasant Hill, weedy field along Homestead Valley trail. Comment
  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
  OBI16865  Centaurea solstitialis Robert F. Hoover 1966-8-31 9946 Contra Costa Jctn of Tassajara and Freitas Rd, E of Danville 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
  UC2028274  Centaurium davyi Barbara Ertter 1999-6-12 16702 Contra Costa Black Hawk Ridge Road between Knobcone Point Road and NE fork of Sycamore Creek, South side of Mount Diablo. Comment
  CDA42426  Centranthus ruber D. G. Kelch, Vince Guise 2012-7-26 12 .233 Contra Costa El Sobrante; Circle Dr. Comment
  UC691508  Centromadia fitchii Mary L. Bowerman 1930-9-27 471 Contra Costa 2.5 mi from entrance (= North Gate) (w road (= North Rd.)); Mount Diablo Comment
  CAS-BOT-BC288549  Centromadia fitchii Rimo Bacigalupi 1922-9-24 s.n. Contra Costa Along road between Clayton Mitchell Comment
  CAS-BOT-BC288550  Centromadia fitchii Wm. F. Herrin 1922-7-4 s.n. Contra Costa Byron Springs Comment
  UCD130188  Centromadia fitchii Lewis S. Rose 1941-10-13 41464 Contra Costa 1 mile east of Walnut Creek. 45 Comment
  CAS-BOT-BC288876  Centromadia parryi subsp. congdonii L. R. Abrams 1910-10-9 4360 Contra Costa Between San Ramon and Dublin Comment
  CAS-BOT-BC288880  Centromadia parryi subsp. congdonii David D. Keck 1933-11-2 2611 Contra Costa 2.7 miles N of Walnut Creek Comment
  CAS-BOT-BC279186  Centromadia pungens subsp. pungens David D. Keck 1932-7-7 1736 Contra Costa Just east of Nichols Comment
  CAS-BOT-BC279190  Centromadia pungens subsp. pungens A. A. Heller 1928-4-15 14487 Contra Costa About Byron Springs Comment
  CAS-BOT-BC279195  Centromadia pungens subsp. pungens D. E. Breedlove 1969-10-18 16706 Contra Costa On Deer Hill Road near the junction with Happy Valley Road, Lafayette Comment
  UC2028506  Centromadia pungens subsp. pungens Barbara Ertter with Mary Bowerman, Lisa Schultheis 1998-8-21 16406 Contra Costa North side Shell Ridge Open Space west of Mount Diablo, near pond at Wiget Lane entrance Comment
  UC70203  Centromadia pungens subsp. pungens J. Burtt Davy 1898-5-1 Contra Costa Livermore Pass Region of Mount Diablo Comment
  CAS-BOT-BC222902  Cephalanthus occidentalis Virginia I. Dains; Walter Knight 1986-8-8 5465 Contra Costa Jct Rock S1 & Werner Cut Comment
  UC1948960  Cerastium glomeratum William J. Ferlatte, L. Maynard Moe 1970-4-27 1233 Contra Costa San Francisco Bay: Red Rock Island Comment
  CDA19002  Ceratophyllum demersum R. Gage 2000-10-18 PDR 1198719 B Contra Costa Clifton Ct. Forebay, NW of Tracy, at the head of State Water project. 0 Comment
  RSA666357  Ceratophyllum demersum Barbara Ertter, Lynne Hosley 1991-9-22 10823 Contra Costa Lafayette Reservoir in hills SW of Lafayette 137 Comment
  UC565564  Chaenactis glabriuscula var. glabriuscula H. L. Mason 1929-3-31 5157 Contra Costa Antioch, sand dikes along San Joaquin River San Joaquin River, Antioch Comment
  UC90158  Chaenactis glabriuscula var. glabriuscula C. F. Baker 1903-4-27 2940 Contra Costa Antioch Paicfic Coast, Antioch Comment
  JEPS111952  Chamaesyce serpens D. G. Kelch 2004-7-9 04 .301 Contra Costa McEwen Road McEwen marsh. McEwen Road North of Cummings Skyway 130 Comment
  CAS-BOT-BC66367  Cheilanthes covillei Mary L. Bowerman 1931-5-7 801 Contra Costa North Peak ridge Comment
  CAS-BOT-BC70278  Cheilanthes intertexta John Thomas Howell 1955-3-6 30145 Contra Costa between South & North peaks of Mt. Diablo Comment
  CHSC23348  Chenopodium album Willis Ball 1975-6-1 532 Contra Costa Contra Loma Regional Park. In area #11. On n side of road ca. 200 yds e of main entrance to park. 60 Comment
  UC2012996  Chenopodium berlandieri Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14926 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  UC1136381  Chenopodium californicum H. S. Yates 1936-3-14 5365 Contra Costa 2 1/2 mi sw Round Valley; Mt. Diablo Quadrangle Comment
  UC14076  Chenopodium californicum Chesnut and Drew 1889-4-18 Contra Costa Antioch; sand hills Comment
  CAS-BOT-BC497666  Chlorogalum pomeridianum Mary L. Bowerman 1930-6-5 239 . Contra Costa Mount Diablo: North Road, 2.9 mi from North Gate 243 Comment
  CAS-BOT-BC252678  Chorizanthe membranacea Alice Eastwood 1915-5-30 s.n. Contra Costa Mt. Diablo Comment
  UC188732  Chorizanthe uniaristata M. K. Curran 1884-1 Contra Costa near Mount Diablo; near Mount Diablo Comment
  UCSB27371  Chrysolepis chrysophylla Havlik, Neil 1969-7-18 Contra Costa on the ridgetop of Moraga Ridge, east of Oakland 335 Comment
  CAS-BOT-BC30111  Chrysolepis chrysophylla var. minor H. E. Mc. Minn 1922-5-30 31 Contra Costa Moraga ridge Comment
  JEPS46616  Chrysolepis chrysophylla var. minor Dr. H. M. Wheeler 1943-8-15 Contra Costa Moraga Ridge Comment
  JEPS77018  Chrysolepis chrysophylla var. minor Robert M. Lloyd 1963-3-17 Contra Costa on Skyline across from 7090 Skyline Drive (0.5 mi e of intersection of Grizzly Peak Road and Skyline Drive); Skyline Drive, Huckleberry Trail Comment
  UCD110102  Chrysolepis chrysophylla var. minor J. M. Tucker 1941-9-26 408 Contra Costa Summit of Moraga Ridge. Comment
  UC22848  Cicendia quadrangularis W. H. Brewer 1862-4-24 993 Contra Costa Martinez; near Camp 68 Comment
  CAS-BOT-BC277974  Cirsium cymosum John Thomas Howell 1942-7-19 17039 Contra Costa Near Rock City, Mt. Diablo Comment
  UC2028393  Cirsium cymosum Barbara Ertter with Richard K. Brummitt 1998-5-13 16135 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, west side of ridge in Lougher Loop Trail, S-facing grassy slope Comment
  UC2031459  Cirsium occidentale var. californicum Barbara Ertter with David Gowen, Mike Park, Chris Thayer et al. 2014-4-12 21710 Contra Costa North side of Rhine Canyon Road, Ginochio property on east side of Mount Diablo Comment
  UC691381  Cirsium occidentale var. californicum Mary L. Bowerman 1935-5-16 3015 Contra Costa e side of North Peak (behind Gabriel-Hinks'); Mount Diablo, North Peak 289 Comment
  JEPS111724  Cirsium vulgare D. G. Kelch 2004-7-9 04 .298 Contra Costa Crockett - Carquinez Scenic Drive Just west of Pt. Costa 60 Comment
  UCD161763  Cirsium vulgare James A. Neilson Jr.; Samuel A. Bamberg 1972-10-22 3507 Contra Costa Walnut Creek drainage. (Exact location unknown. Coordinates and elevation estimated by label maker based on collection data from same date.) 1 Comment
  CAS-BOT-BC162631  Clarkia R. D. Stone 1983-5-17 509 Contra Costa On ridge at northe end of Walker Ranch, near Alameda County line ca. 9 mi. NE of Livermore and 1 mi. NNE of Brushy Peak, upper Kellogg Creek drainage 342 Comment
  CAS-BOT-BC162566  Clarkia affinis Alice Eastwood 1923-5-4 11734 Contra Costa Mt. Diablo Comment
  UC1122359  Clarkia affinis C. M. Belshaw 1936-5-9 2075 Contra Costa 2 1/4 mi e Clayton (plot 10); Mt. Diablo Quadrangle Comment
  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
  UC1818926  Clarkia affinis Barbara Ertter, Mary Bowerman 1995-6-11 14255 Contra Costa Shell Ridge Recreation Area southeast of Walnut Creek, bank of Indian Creek above Indian Valley Pond, partial sun on Franciscan layer. 76 Comment
  UC1072046  Clarkia affinis H. Lewis and C. Epling 1947-5-4 199 Contra Costa 0.2 mi s 14 mile house (Livermore to Mt. Hamilton road) Comment
  UC2070449  Clarkia affinis Barbara Ertter with Steve Matson 2003-5-31 18179 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, Coal Canyon. Comment
  UC1606348  Clarkia biloba Barbara Ertter with Dianne Lake 1991-8-18 10676 Contra Costa e Crockett (n-facing slope above pilings ne of Bull Valley staging area); Carquinez Strait Regional Shoreline Comment
  UC169380  Clarkia biloba Katharine Brandegee June 1905 Contra Costa Port Costa 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
  UC692495  Clarkia concinna subsp. concinna Mary L. Bowerman 1931-5-21 879 Contra Costa Mount Diablo, Curry Cave Point Trail Curry Cave Point Trail; Mount Diablo, Curry Cave Point Trail 350 Comment
  UC692496  Clarkia concinna subsp. concinna Mary L. Bowerman 1930-6-5 241 Contra Costa ca. 5 1/2 mi from North Gate (North Road); Mount Diablo 457 Comment
  UC1818899  Clarkia gracilis subsp. gracilis Barbara Ertter, Mary Bowerman 1994-6-19 12853 a Contra Costa Mt. Diablo State Park east of Walnut Creek; scrub oak thicket north of road, north of lower summit parking lot, next to drainage on north facing slope. Comment
  CAS-BOT-BC163672  Clarkia purpurea subsp. quadrivulnera John Thomas Howell 1931-5-12 6483 Contra Costa Mt. Diablo Comment
  POM300657  Clarkia purpurea subsp. quadrivulnera Mary L. Bowerman 1942-5-24 3840 Contra Costa Mount Diablo: Jim White Trail to Deer Flat; west slope of Deer Ridge 854 Comment
  CAS-BOT-BC172365  Clarkia purpurea subsp. viminea Paul F. Covel 1940-5-12 1743 Contra Costa Summit of Mt. Diablo Comment
  CAS-BOT-BC165038  Clarkia rubicunda Peter H. Raven 1957-6-20 10950 Contra Costa Hillside at Inspiration Point, east end of Tilden Regional Park 365 Comment
  CDA31846  Clarkia rubicunda D. G. Kelch, Dick Moe, Doug Stone 2001-6-3 1 .024 Contra Costa East Bay.; Brooks Island. Comment
  CHSC75102  Clarkia unguiculata Roger Thom 1987-5-18 12 Contra Costa 1.0 mi from intersection with Pleasant Hill Rd. on Reilez Valley Rd. Lafayette (1600 block). Road cut. 182 Comment
  JEPS43601  Clarkia unguiculata W. L. Jepson 1919-6-8 8325 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC439165  Claytonia exigua subsp. exigua Mary L. Bowerman 1932-3-12 1110 Contra Costa Mount Diablo. Alamo Canyon 350 Comment
  JEPS68968  Claytonia exigua subsp. exigua Edward Lee 1935-3-10 1302 Contra Costa Nortonville , Kirker Creek (s watershed Kirker Creek) Comment
  JEPS68969  Claytonia exigua subsp. exigua Edward Lee 1935-3-10 1303 Contra Costa Nortonville , Kirker Creek (s watershed Kirker Creek) Comment
  UC692547  Claytonia exigua subsp. exigua Mary L. Bowerman 1935-3-16 2737 Contra Costa e fork Arroyo del Cerro; Mount Diablo 262 Comment
  UC692548  Claytonia exigua subsp. exigua Mary L. Bowerman 1935-3-16 2732 Contra Costa Peach Tree Springs Road Mount Diablo (e fork of canyon) 228 Comment
  UC692660  Claytonia exigua subsp. exigua Mary L. Bowerman 1932-3-12 1114 Contra Costa Alamo Canyon (50 ft above stream) Alamo Canyon; Mount Diablo 365 Comment
  CAS-BOT-BC439170  Claytonia exigua subsp. exigua Alice Eastwood 1915-5-30 4532 Contra Costa Unspecified Comment
  POM164052  Claytonia gypsophiloides Edward L. Greene 1903-4-28 4611 Contra Costa Mitchell s canon, Mt. Diablo. Comment
  SEINET198599 Image available Claytonia gypsophiloides P. Kamb, F Chisaki 1950-3-18 1638 Contra Costa Saddle betwee4n N and S peaks of Mt. Diablo 880 Comment
  CAS-BOT-BC439436  Claytonia parviflora subsp. parviflora Mary L. Bowerman 1930-6-14 331 Contra Costa Mount Diablo. Meridian Peak Summit Comment
  HSC17682  Claytonia perfoliata Greg Bos 1963-4-26 87 Contra Costa Pinole Valley Rd., SE of Pinole 76 Comment
  CAS-BOT-BC443683  Claytonia perfoliata subsp. perfoliata Walter Knight 1965-3-1 904 Contra Costa Antioch dunes Comment
  SEINET194968 Image available Claytonia perfoliata subsp. perfoliata A. A. Heller 1908-4-17 8909 Contra Costa Tracey. 10 Comment
  CAS-BOT-BC440072  Claytonia perfoliata subsp. perfoliata Willis Ball 1975-2-23 444 Contra Costa Contra Loma Regional Park. In area #1. In flat area ca. 150 yds w of main parking lot. 30 Comment
  UCD100829  Claytonia perfoliata subsp. perfoliata Robert L. Rudd 1947-3-24 23 Contra Costa Picnic Ground, Wildcat Canyon. Comment
  UC1795716  Claytonia rubra subsp. depressa Barbara Ertter, Brad Olson, Diane Lake 1996-4-14 14591 Contra Costa North Peak of Mt. Diablo; open rocky flats. Comment
  UC1050592  Clematis cirrhosa N. Floy Bracelin 1942-2-22 1942 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1050389  Clematis heracleifolia var. davidiana N. Floy Bracelin 1941-9-28 1703 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1051326  Clematis jackmanii N. Floy Bracelin 1941-6-15 1401 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC91360  Clematis lasiantha Alice Eastwood 1915-5-30 4460 Contra Costa Mount Diablo. Comment
  OBI19648  Cleome hassleriana Harry Morten 1964-10-11 s.n. Contra Costa Lower end of San Joaquin Valley, 5 mi E of Byron Comment
  UC1050307 Image available Clerodendrum bungei N. Floy Bracelin 1941-8-24 1592 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1980320  Clinopodium vulgare Barbara Ertter with David Gowen 2011-10-6 20919 Contra Costa Tilden Regional Park in hills east of Berkeley, lower Vollmer Peak Trail southeast of Big Spring picnic area Comment
  SEINET12050675  Clintonia andrewsiana W. Knight, Knight, I. 1988-1 6129 Contra Costa Redwood Regional Park, between pipe bridge and single curb bridge along Steam Trail 274 Comment
  UC41790  Collinsia bartsiifolia var. bartsiifolia Chestnut and Drew 1889-4-16 Contra Costa Concord Comment
  JEPS7320  Collinsia heterophylla Mary L. Bowerman 1935-3-16 2739 Contra Costa Mount Diablo, e fork of Arroyo del Cerro Arroyo del Cerro; Mount Diablo, Arroyo del Cerro 262 Comment
  JEPS7324  Collinsia heterophylla Fred Shoemaker 1938-4-11 Contra Costa Marsh Creek Canyon Comment
  RSA412224  Collinsia sparsiflora H. de Forest 1930-4-6 s.n. Contra Costa [No location information provided.] Comment
  SEINET12343275  Collinsia sparsiflora Ottley 1920-4-25 468 Contra Costa San Francisco Bay Region, Mitchell Canon, Mt. Diablo 305 Comment
  JEPS3891  Collinsia sparsiflora var. collina Lauramay Tinsley 1929-3-27 Contra Costa Mount Diablo Comment
  UC766264  Collinsia sparsiflora var. collina R. F. Hoover 1938-3-5 2817 Contra Costa mouth of Kirker Creek Canyon Comment
  POM203034  Collinsia sparsiflora var. collina J. T. Howell 1934-4-8 11810 Contra Costa 7 miles from Clayton on road to Livermore. Comment
  UC2028312  Collinsia tinctoria Barbara Ertter, Susan D'Alcamo 1998-6-12 16164 Contra Costa North Peak Trail from Devil's Elbow on SE side of Mount Diablo summit. Comment
  UC2028981  Collinsia tinctoria Barbara Ertter 2000-5-14 17017 Contra Costa Donner Basin on north side of Mount Diablo, upper end of Falls Trail near junction of Cardinet Oaks Road. Comment
  JEPS103103  Collomia diversifolia Mary L. Bowerman 1975-6-7 Contra Costa E of Murchio Gap, on and near fire road Mount Diablo Comment
  JEPS100090  Convolvulus arvensis G. Smick 2003-5-6 GAS 169 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC23157 Image available Convolvulus luteolus var. purpuratus Ivar Tidestrom 1893-4-15 Contra Costa Sheep Island Island, S.Fr. Bay, (Brooks Island) Comment
  JEPS100237  Convolvulus simulans Dean W. Taylor 1990-4-23 10635 Contra Costa ca. 2 miles due W of Byron Hot Springs 30 Comment
  HSC33256  Conyza canadensis A. M. Montalvo, J. D. Ackerman 1974-12-1 435 Contra Costa Walnut Creek, Olympic Dr. between Tice Valley Rd. and Pleasant Hill Rd. 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
  UC1050003  Coprosma lucida N. Floy Bracelin 1942-4-12 2016 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CDA42363  Cordylanthus pilosus subsp. pilosus D. G. Kelch, Vince Guise 2012-7-26 12 .23 Contra Costa Carquinez Strait.; Martinez. Summit of Shady Glen Rd on sandstone outcrop. Comment
  UC691507  Cordylanthus pilosus subsp. pilosus Mary L. Bowerman 1936-8-8 3523 Contra Costa Emmons Canyon, W fork Mount Diablo Comment
  UC2028256  Cordylanthus pilosus subsp. pilosus Barbara Ertter, Tony Morosco 1998-9-18 16420 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, western quarry area. Comment
  CAS-BOT-BC287940  Coreopsis calliopsidea Dr. Kellogg No date on label 63 Contra Costa Unspecified Comment
  CAS-BOT-BC209749  Cornus glabrata V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Comment
  CAS-BOT-BC209750  Cornus glabrata V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Comment
  JEPS50113  Cornus glabrata W. L. Jepson May 22 1891-May 23 1891 14150 Contra Costa Mt. Diablo Region, Pine Canyon Comment
  JEPS50136  Cornus sericea subsp. sericea W. L. Jepson 1914-10-31 6212 Contra Costa Oakland Hills, Moraga Ridge Comment
  UC70644  Cornus sericea subsp. sericea Jos. Burtt Davy 1895-7-13 Contra Costa Moraga Valley, Jack Hayes Canyon Oakland Hills, Moraga Valley, Jack Hayes Canyon Comment
Read comments
Jun 8 2011
  UC70655  Cornus sericea subsp. sericea Jos. Burtt Davy 1895-1 Contra Costa Morago Pass Comment
  LA40446  Cornus sericea subsp. sericea J. A. Ewan; 1936-7-5 9720 Contra Costa Reservoir road, Wildcat Creek Comment
  UC1618361  Cortaderia jubata Barbara Ertter 1991-9-28 10854 Contra Costa e end of Schmidt Street at El Cerrito recycling center, s end of Hillside Natural Area El Cerrito; , Hillside Natural Area, Schmidt Street Comment
  UC2028555  Cortaderia selloana Barbara Ertter 1998-11-15 16459 Contra Costa North side Mount Olympia on north side Mount Diablo. Comment
  JEPS111824  Corylus cornuta var. californica A. G. Murdock 2004-4-30 261 Contra Costa Vaca Canyon 165 Comment
  JEPS99943  Cotoneaster pannosus G. Smick 2003-6-6 GAS 218 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1622290  Cotoneaster pannosus Barbara Ertter 1997-1-5 15431 Contra Costa at Lime Ridge between Walnut Creek and Clayton (Ygnacio Valley Road); Lime Ridge, Ygnacio Valley Road Comment
  UC2028952  Cotoneaster pannosus Barbara Ertter 2000-7-16 17388 Contra Costa lower Pine Creek in Diablo Foothills Regional Park. Comment
  JEPS65181  Crassula aquatica L. R. Heckard 1971-4-15 2486 Contra Costa s. Byron (field at intersection of Holey Rd.) Comment
  CAS-BOT-BC427569  Crassula aquatica Virginia I. Dains; Walter Knight 1986-8-8 5459 Contra Costa Jct Rock S1 & Werner Cut, Ecos East Contra Costa County Comment
  UC2028185  Crassula aquatica Barbara Ertter 1998-5-3 16059 Contra Costa Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. Comment
  JEPS25118  Crassula connata var. subsimplex G. Thomas Robbins 1959-3-15 3961 Contra Costa hills at e. edge Rodeo 12 Comment
  CAS-BOT-BC427924  Crassula solieri Brandegee No date on label s.n. Contra Costa Antioch Comment
  CDA19637  Crepis bursifolia Doreen Smith, Wilma Follette 2003-10-25 s.n. Contra Costa San Francisco Bay Area; Briones Park. 0 Comment
  CDA4469  Crepis bursifolia G. D. Barbe 1978-7-2 2405 Contra Costa 2800 block of East Street between Sycamore and Maple Avenue, Concord. 0 Comment
  JEPS117992  Crepis pulchra Zoya Akulova-Barlow 2011-6-13 Contra Costa Between west end of Gladys Street and Kearney Street. Comment
  RSA292977  Cressa truxillensis Reino Alava 1957-5-20 880 Contra Costa About one mile south of Byron. Comment
  UC2028424  Crocosmia X crocosmiiflora Barbara Ertter 1996-9-19 15291 Contra Costa Cerrito Creek at base of Albany Hill, just west of San Pablo Avenue Comment
  CDA15287  Crypsis schoenoides G. F. Hrusa, D. Crowe, R. York 1998-7-17 14726 Contra Costa Sacramento Delta; Dense band outside of lowest part of now dry vernally wet depression within highly disturbed annual grasslands adjacent to on E side of Antioch-Pittsburg Hwy at E end of Dow Chemical property. W/out standing water at this time. Annual. Comment
  CDA32859  Crypsis schoenoides D. G. Kelch 2010-10-5 10 .421 Contra Costa The Delta; Just east of Antioch bridge. Comment
  CDA38798  Crypsis schoenoides D. G. Kelch 2006-8-12 6 .377 Contra Costa Carquinez Strait; Martinez. Along Alhambra Creek near train station. Comment
  CAS-BOT-BC190082  Crypsis schoenoides R. E. Frenkel 1964-9-17 863 Contra Costa On Marsh Creek Road at shore of Marsh-Kellogg Creek Reservoir. 45 Comment
  CAS-BOT-BC361415  Crypsis schoenoides Peter Rubtzoff 1968-9-18 5964 Contra Costa North Gate Road, ca. 5 miles northwest of Mt. Diablo State Park north entrance. Comment
  JEPS99572  Cryptantha flaccida Mary Bowerman 1991-5-21 Contra Costa Mount Diablo, by Jim White Trail [Deer Flat Rd.] Comment
  UC659427  Cryptantha flaccida Lincoln Constance, Carl W. Sharsmith with Howard S. Reed 1940-4-27 2573 Contra Costa Pine Canyon, base of Mount Diablo Mount Diablo 304 Comment
  UC55905  Cryptantha microstachys Jos. Burtt Davy 1901-4-21 7046 Contra Costa Wildcat Canyon Comment
  UC762463  Cryptantha microstachys R. F. Hoover 1938-5-4 3349 Contra Costa e of Tassajero Creek Comment
  UC691348  Cryptantha muricata Mary L. Bowerman 1933-5-18 2129 a Contra Costa Mount Diablo Comment
  JEPS67884  Cryptantha torreyana Mary L. Bowerman 1933-6-3 2245 Contra Costa Meridian Peak summit Mt. Diablo Comment
  RSA721362  Cryptantha torreyana var. pumila Barbara Ertter, Mary L. Bowerman 1994-6-19 12846 a Contra Costa Mt. Diablo State Park east of Walnut Creek; lower Summit Parking lot, opening on north side. 1128 Comment
  CDA33352  Cuscuta japonica Niang/Slattengreen 2008-8-2 PDR# 1454024 Contra Costa El Sobrante; 5737 Skyview Place (near Richmond city limits?) 0 Comment
  CDA33695  Cuscuta japonica Yost 2008-7-18 PDR# 1454447 Contra Costa Richmond; 105 Martin Dr. 0 Comment
  UC562483  Cuscuta subinclusa Joseph P. Tracy 1932-9-10 10789 Contra Costa Franklin Canyon 152 Comment
  UC691907  Cuscuta subinclusa Mary L. Bowerman 1933-9-9 2428 Contra Costa e of Frog Pond; Mount Diablo, Rhine Canyon 457 Comment
  UC691908  Cuscuta subinclusa Mary L. Bowerman 1932-10-16 1633 Contra Costa Donner Canyon trail Mount Diablo Comment
  UC1795818  Cuscuta subinclusa Barbara Ertter 1994-6-26 12876 Contra Costa South of Point Molate Beach Park in west Richmond north of San Rafael Bridge, beach north of Pt. Castro. Comment
  CAS-BOT-BC299740  Cynara cardunculus D. E. Breedlove 1969-10-18 16709 Contra Costa Along the roadbank on Deer Hill Road near the junction with Happy Valley Road, Lafayette Comment
  CAS-BOT-BC299745  Cynara cardunculus John Thomas Howell 1953-3-15 28922 Contra Costa Danville Comment
  CHSC23352  Cynodon dactylon Willis Ball 1975-5-15 527 Contra Costa Contra Loma Regional Park. In area #1 ca. 3 yds w of restroom facility at s end of reservoir. In lawn by beach area. 30 Comment
  JEPS100074  Cynoglossum grande S. O'Neil 2003-2-25 SEO 6 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  POM369275  Cynoglossum grande H. de Forest 1930-3-29 s.n. Contra Costa 2 miles from summit of Mt. Diablo. Comment
  UC691347  Cynoglossum grande Mary L. Bowerman 1931-3-1 531 Contra Costa just e. of meridian Mt. Diablo; Inner Black Hills, Mt. Diablo Comment
  UC765557  Cynoglossum grande R. F. Hoover 1938-2-21 2752 Contra Costa Marsh Creek Comment
  UCR7818  Cynoglossum grande Wm. Horn Jr. 1964-2-26 640226- 2 Contra Costa San Francisco Bay Region, Flicker Ridge, 1.5 mi SW of Moraga 183 Comment
  UCSB21184  Cynoglossum grande Jones, D. 1967-3-25 Contra Costa Mt. Diablo State Park 475 Comment
  SEINET10861237  Cynosurus echinatus M. Bowerman 1975-6-7 Bowerman s.n. Contra Costa Mount Diablo. Big Spring. Shady. Bay, Canyon Oak. But hard packed, semi open where people and horses come to watering trough (bathtub). Comment
  SEINET5546123  Cynosurus echinatus E. A. Bernays 1985-1 s.n. Contra Costa Tilden. Comment
  UC665689  Cyperus eragrostis Thomas Morley 1940-12-3 90 Contra Costa banks at upper end San Leandro Lake (near mouth of Redwood Creek) 129 Comment
  CAS-BOT-BC114615  Cyperus eragrostis Walter Knight; Harry Reeves 1979-8-25 3407 Contra Costa In natural marsh E of reservoir. Contra Loma Regional Park near Antioch. 22 Comment
  SEINET10869432  Cyperus eragrostis Thomas Morley 1940-12-3 Morley 90 Contra Costa Coarse perennial one to three feet high, in dense masses, associated with Salix, typha, polypogon in fine rich moist soil, banks at upper end of san Leandro lake near mouth of redwood creek 130 Comment
  CAS-BOT-BC110840  Cyperus strigosus Walter Knight; I. Knight; E. McClintock; J. T. Howell; B. Doyle; P. Rae 1978-9-5 3226 Contra Costa Browns Island, Botany Cove Comment
  CDA29567  Danthonia californica D. G. Kelch, Troy MacGregor 2009-5-1 9 .289 Contra Costa Carquinez Strait; Fernandez Ranch in valley bottom along Christie Rd. Comment
  UC1606344  Datura wrightii Barbara Ertter, B. Olson, D. Lake, L. Hosley and A. Youngson 1991-10-20 10857 Contra Costa just w Antioch marina (Dow Wetlands Preserve, plowed fields at sw end); Dow Wetlands Preserve Comment
  UC1481555  Deinandra corymbosa Neil Havlik 1980-5-14 917 Contra Costa e side Pt. Pinole Regional Shoreline Comment
  CAS-BOT-BC294016  Deinandra kelloggii Alice Eastwood 1921-4-18 10300 Contra Costa Antioch Comment
  CAS-BOT-BC294024  Deinandra kelloggii James I. McMurphy 1908-10-18 s.n. Contra Costa Antioch Comment
  UC365836  Deinandra kelloggii Mrs. K. Curran Contra Costa near Antioch Comment
  CAS-BOT-BC294023  Deinandra kelloggii H. M. Hall 1930-6-18 12793 Contra Costa Stockton Ranch, south of Antioch Comment
  SEINET7838969 Image available Deinandra kelloggii K. Brandegee 1907-5-5 19 Contra Costa Near Antioch Comment
  CAS-BOT-BC291809  Deinandra lobbii David D. Keck 1933-11-2 2615 Contra Costa 1 mi. E. of Nichols, N. Contra Costa County Comment
  UC691947  Delphinium californicum Mary L. Bowerman 1935-5-30 3091 Contra Costa rock slide Mount Diablo, Eagle Point Ridge 350 Comment
  UC691948  Delphinium californicum Mary L. Bowerman 1935-5-30 3091 Contra Costa rock slide Mount Diablo, Eagle Point Ridge 350 Comment
  UCD95636  Delphinium californicum P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UC72893  Delphinium californicum subsp. interius Milo S. Baker 1904-6-23 Contra Costa Mt. Diablo 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
  POM225347  Delphinium hesperium J. T. Howell 1931-5-12 6482 Contra Costa N side of Mt Diablo Comment
  SEINET12086747  Delphinium hesperium J. T. Howell 1931-1 6482 Contra Costa North Side of Mt. Diablo 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-BC10011  Delphinium hesperium subsp. pallescens John Thomas Howell 1934-4-8 11824 Contra Costa South of Antioch Comment
  LA38170  Delphinium hesperium subsp. pallescens Lewis; Mehlquist 446 Contra Costa S of Antioch, 5.4 mi. N of Marsh Creek rd Comment
  POM203038  Delphinium hesperium subsp. pallescens J. T. Howell 1934-4-8 11824 Contra Costa South of Antioch Comment
  UC1819001  Delphinium nudicaule Barbara Ertter, Tom Delendick 1996-5-2 14613 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
  CAS-BOT-BC116452  Delphinium patens subsp. patens L. R. Abrams 1921-5-25 8066 Contra Costa Summit Mt. Diablo Comment
  UC9157  Delphinium patens subsp. patens Harley P. Chandler 1901-4-5 974 Contra Costa Mount Diablo Comment
  RSA148057  Delphinium recurvatum C. Epling 1945-3-23 542 Contra Costa 5 miles west of Tracy-Byron road on road to Byron Hot Springs Comment
Read comments
Aug 17 2011
  LA207638  Delphinium variegatum H. Lewis; Carl Epling 1944-5-6 sn Contra Costa 1 mi. S of Marsh Creek Rd. on the Beck Rd. to Livermore Comment
  UC13975  Delphinium variegatum subsp. variegatum Chestnut and Drew 1889-4-6 Contra Costa Concord Comment
  UC2028977  Delphinium variegatum subsp. variegatum Barbara Ertter with Kevin Hintsa 2000-5-16 17022 Contra Costa Rock City area on SSW side of Mount Diablo, East Fossil Ridge Trail. Comment
  CAS-BOT-BC11024  Dendromecon rigida John Thomas Howell 1925-10-11 1497 Contra Costa Moraga Ridge, Oakland Hills Comment
  HSC8594  Dendromecon rigida D. A. Shally 1965-4-18 32 Contra Costa Canyon, 1.5 mi. NE of Canyon Store on 'fire trail Comment
  CAS-BOT-BC192544  Deschampsia cespitosa subsp. holciformis Walter Knight; Joanne Dean 1978-8-14 3151 Contra Costa Browns Island Comment
  UC650562  Deschampsia danthonioides Ira L. Wiggins 1930-4-17 4576 Contra Costa 1/4 mi. s. Byron Comment
  UCD18454  Deschampsia elongata Glen Holstein 2000-7-27 s.n. Contra Costa SE El Sobrante, NE side of San Pablo Ridge, along trails. Comment
  UC2028497  Deschampsia elongata Barbara Ertter 1999-6-12 16710 Contra Costa Black Hawk Ridge road on south side of Mount Diablo, road crossing at confluence of NE and E forks of Sycamore Creek Comment
  CAS-BOT-BC43126  Descurainia pinnata subsp. brachycarpa Volney Rattan 1879-1-1 s.n. Contra Costa Antioch. Comment
  JEPS9567  Dicentra chrysantha W. L. Jepson 1920-8-12 9076 Contra Costa s slope towards summit Mt. Diablo Comment
  JEPS9568  Dicentra chrysantha W. L. Jepson 1920-8-12 9076 Contra Costa s slope towards summit Mt. Diablo Comment
  UC33546  Dicentra chrysantha V. K. Chesnut before August, 1901 Contra Costa Mt. Diablo Comment
  UC521723  Dicentra chrysantha Joseph Andorfer Ewan 1933-10-15 8030 Contra Costa s slope Mt. Diablo 1066 Comment
  UC9939  Dicentra formosa Chas. Palache Mar 1891 Contra Costa Moraga Canyon Comment
  CDA29039  Dichelostemma capitatum D. G. Kelch 2006-5-7 6 .158 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  UC1300933  Dichelostemma capitatum Helen K. Sharsmith 1962-3-25 4909 Contra Costa hills between Happy Valley and Alhambra Valley; San Francisco Bay Region 304 Comment
  UC2032818 Image available Dichelostemma capitatum Doran, Andrew Scott 2012-3-20 688 Contra Costa North end of Brooks Island along ridge overlooking artificial spit, southwest of caretakers residence. Comment
  UC2029186  Dichelostemma congestum Barbara Ertter 2000-5-14 17006 Contra Costa Donner Canyon on north side of Mount Diablo, SW end of Falls Trail between Middle Trail and Donner Creek crossing Comment
  CAS-BOT-BC502553  Dichelostemma congestum Alice Eastwood 1915-5-30 4474 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC150326  Diplacus aurantiacus Alice Eastwood 1915-6-21 4737 Contra Costa San Leandro Comment
  SJSU7703  Diplacus tricolor J. A. Johnson 1956-4-12 20 Contra Costa 1.5 mi E of Concord in El Monte District Comment
  CAS-BOT-BC121839  Dirca occidentalis Walter Knight; Irja Knight 1967-1-24 2057 Contra Costa Tilden Regional Park, near little train Comment
  RSA40099  Dirca occidentalis L. S. Rose 1948-3-9 s.n. Contra Costa Head of Wildcat Creek, Berkeley Hills 457 Comment
  SBBG4896  Dirca occidentalis H. and M. Dearing 1940-3-20 4122 Contra Costa Berkeley hills in Tilden Park, Berkeley Comment
  UC552357  Dirca occidentalis Arthur Cobbledick 1936-3-23 Contra Costa Wildcat Canyon Comment
  UC565411  Dirca occidentalis Chas. M. Belshaw 1935-3-3 372 Contra Costa shallow draw on ne face Bald Peak; San Pablo Reservoir Comment
  UC766022  Dirca occidentalis R. F. Hoover 1938-3-8 2822 Contra Costa e slope Grizzly Peak ridge Comment
  UCSB27473  Dirca occidentalis Havlik, Neil 1969-7-10 Contra Costa Along the West Ridge Trail about one-half mile from Skyline Gate, Redwood Regional Park, Oakland Hills 396 Comment
  RSA170194  Disporum hookeri var. hookeri J. Rattenbury 1948-4-13 111 Contra Costa On south side of highway above creek, half mile east of Tunnel from Oakland; 213 Comment
  UC1050383  Distictis lactiflora N. Floy Bracelin 1942-8-23 1683 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CDA4505  Dittrichia graveolens D. G. Kelch 2006-9-25 6 .476 Contra Costa Carquinez Strait; Marsh 1km. W of Pacheco Slough. Comment
  SEINET9307556  Dittrichia graveolens Unknown 2002-10-22 1959 Contra Costa Contra Costa Comment
  JEPS128778  Dittrichia graveolens Kevin Hintsa 1997-9-30 Contra Costa Mount Diablo State Park, Live Oak Campground. Comment
  UC2028241  Dittrichia graveolens Barbara Ertter, Tony Morosco 1998-9-18 16423 Contra Costa Lime Ridge Open Space northwest of Mount Diablo. Comment
  JEPS9520  Dodecatheon hendersonii W. L. Jepson 1923-3-11 9848 Contra Costa Mt. Diablo 396 Comment
  POM287080  Dodecatheon hendersonii Lyman Benson 1935-3-16 6279 Contra Costa Mitchell Canyon near Clayton; Mt. Range: Mt. Diablo; Watershed: Walnut Creek. 244 Comment
  UCSB11262  Dodecatheon hendersonii Hayes, Judy 1961-3-29 Contra Costa 2 miles N of Danville on Cliffhill Road Comment
  UC1050373  Dolichandra unguis-cati N. Floy Bracelin 1942-7-4 1384 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS127676  Downingia insignis Barbara Ertter with David Gowen and Michael Park 2017-5-2 22797 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  UC924239  Downingia insignis H. S. Reed 1940-4-30 356 a Contra Costa 6 mi s Antioch 15 Comment
  RSA424714  Downingia insignis Aaron Liston 1987-4-27 670 -1 Contra Costa 3 miles S of Byron. Comment
  RSA622149  Downingia insignis John A. Churchill 1974-4-15 7441521 Contra Costa Between Route K4 and railroad at Holey Road. Comment
  UCD32386  Downingia ornatissima Beecher Crampton 1950-4-22 530 Contra Costa Contra Costa County, 2 miles south of Antioch, on road from Antioch to Lone Tree Valley, in shallow depression along roadside. 60 Comment
  SJSU3103  Downingia ornatissima var. eximia J. A. Johnson 1956-4-7 11 Contra Costa 1.5 mi E of Concord in El Monte District Comment
  JEPS14440  Downingia pulchella W. L. Jepson May 23 1891-May 24 1891 21212 Contra Costa Mt. Diablo Comment
  UCD55128  Downingia pulchella Beecher Crampton 1950-4-22 535 Contra Costa Contra Costa County, Concord Valley, between Highway 4 and Buchanan Field (airport). 15 Comment
  JEPS44306  Drymocallis glandulosa var. wrangelliana W. L. Jepson 1923-6-10 9995 Contra Costa Upper Marsh Creek Mt. Diablo, Upper Marsh Creek Comment
  UC691093  Drymocallis glandulosa var. wrangelliana Mary L. Bowerman 1930-6-18 343 Contra Costa Dan Cook Canyon Mount Diablo, Dan Cook Canyon Comment
  UC1948932  Dryopteris arguta William J. Ferlatte, L. Maynard Moe 1970-4-27 1245 Contra Costa San Francisco Bay: Red Rock Island Comment
  SEINET11619633  Dryopteris arguta M. T. Doutt 1930-1 95 Contra Costa Marsh Creek Comment
  UC1015449  Dudleya caespitosa Reid Moran Contra Costa from the garden of Mrs. E. C. Dempster Orinda Comment
  SD51677  Dudleya farinosa G. Thomas Robbins 1959-5-16 4007 Contra Costa Rocky hillside just south of Pt. San Pablo, Potrero Hills, Richmond. 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
  UC1795670  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
  CAS-BOT-BC197106  Echinochloa crus-galli R. E. Frenkel 1963-8-23 274 Contra Costa On the lot in front of Market Plaza Center on Highway 21, Alamo 79 Comment
  UC702897  Elaeagnus angustifolia Dr. E. C. Van Dyke 1941-10-4 Contra Costa River e of Antioch Comment
  UC1949081  Eleocharis acicularis Barbara Ertter with Jim Dunne, David Gowen, Lech Naumovich 2009-12-3 19802 Contra Costa at upper (south) end of San Pablo Dam Reservoir northwest of Orinda; lower areas where recently inundated Comment
  JEPS99557  Eleocharis macrostachya Mary Bowerman 1977-6-11 Contra Costa Mount Diablo, Pine Creek at S end of Castle Rock Park. 182 Comment
  UC1812  Eleocharis macrostachya J. Burtt Davy 1897-9-4 4077 Contra Costa Stege Comment
  UC691972  Eleocharis macrostachya Mary Bowerman 1935-6-21 3152 Contra Costa S of Turtle Rock (pool E of main pond); Mount Diablo Comment
  UC2028433  Eleocharis parishii Barbara Ertter with Chris Thayer 1996-10-25 15350 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothill Regional Park Comment
  UC691969  Eleocharis parishii Mary L. Bowerman 1931-4-11 705 a Contra Costa Sulphur Spring in Pine Canyon Mount Diablo 137 Comment
  UC691973  Eleocharis rostellata Mary L. Bowerman 1933-4-22 1883 Contra Costa Shell Ridge, NW end, just S of the highway Mount Diablo (Heather Farm) Comment
  UC756631  Elymus G. L. Stebbins Jr. 1946-6-9 3660 Contra Costa 2 mi e El Cerrito (near Mira Vista Country Club) Comment
  RSA129552  Elymus X gouldii H. S. Yates 1933-6-18 3649 Contra Costa Mt Diablo; Near Danville 137 Comment
  SD234023  Elymus condensatus Virginia Pinkus Ryder 1975-10-12 659 Contra Costa Walnut Creek. Beside Walnut Creek at Walnut Ave. bridge in disturbed area. Comment
  JEPS99567  Elymus elymoides Mary Bowerman 1975-6-7 Contra Costa Mount Diablo, by Big Spring trail. Comment
  UC692431  Elymus glaucus Mary L. Bowerman 1935-5-16 3009 Contra Costa behind Gabriel-Hinks' (e side of peak); Mount Diablo, North Peak 289 Comment
  UC766736  Elymus glaucus R. F. Hoover 1941-5-19 5105 Contra Costa Claremont Rd Berkeley Hills (e side of hills) Comment
  UCD62270  Elymus glaucus J. B. Davy 1898-6-6 4242 Contra Costa Berkeley Hills. Comment
  CDA31735  Elymus multisetus D. G. Kelch 2002-5-24 2 .018 Contra Costa Carquinez Strait; Crockett. On hill S of San Pablo Ave ~0.4 miles W of Carquinez Bridge. Comment
  UC1819005  Elymus trachycaulus subsp. trachycaulus Barbara Ertter, Mary L. Bowerman 1994-6-19 12851 a Contra Costa Mt. Diablo State Park east of Walnut Creek; lower Summit parking lot, opening in chaparral near radio tower, ca 3600'. Comment
  CAS-BOT-BC204316  Elymus trachycaulus subsp. trachycaulus John Thomas Howell 1942-7-19 17042 Contra Costa Near Deer Flat, Mt. Diablo Comment
  JEPS1582  Emmenanthe penduliflora W. L. Jepson 1921-5-22 9205 Contra Costa .66 way to summit Mt. Diablo Comment
  UC2042778  Epilobium brachycarpum Barbara Ertter 1990-9-10 9637 Contra Costa Briones Regional Park, Briones Hills S of Martinez, eroded N-facing draw between Sindicich and Maricich lagoons. Comment
  UC692458  Epilobium brachycarpum Mary L. Bowerman 1932-10-1 1600 Contra Costa ridge s Uncle Sam Canyon (w base of point, 200 ft above canyon bottom); Mount Diablo, Eagle Point Comment
  UC1949052  Epilobium campestre Barbara Ertter with Brad Olson 1991-9-28 10833 Contra Costa San Pablo Resrvoir between Orinda and El Sobrante Comment
  CAS-BOT-BC166166  Epilobium canum subsp. canum John Thomas Howell 1925-11-1 1536 Contra Costa Moraga Ridge, Oakland Hills Comment
  UC634754  Epilobium canum subsp. canum H. L. Mason 1924-11-23 1169 Contra Costa Las Trampas Ridge Comment
  UC692457  Epilobium ciliatum subsp. ciliatum Mary L. Bowerman 1930-10-4 476 Contra Costa Maple Spring Mount Diablo Comment
  UC2028971  Epilobium ciliatum subsp. ciliatum Barbara Ertter 2000-7-16 17393 Contra Costa lower Pine Creek in Diablo Foothills Regional Park. Comment
  UC19940  Epilobium densiflorum Bolander 6403 Contra Costa Mt. Diablo Comment
  UC1050832  Epiphyllum crenatum N. Floy Bracelin 1944-7-2 1338 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  CDA42475  Equisetum telmateia var. braunii D. G. Kelch 2004-7-9 04 .292B Contra Costa Carquinez Strait; Crockett; Edwards Creek, immediately below high school. Comment
  CAS-BOT-BC204547  Eragrostis curvula John Thomas Howell 1954-9-5 30026 Contra Costa Marsh Creek Springs Park Comment
  JEPS111955  Eremocarpus setiger D. G. Kelch 2004-7-16 04 .320 Contra Costa Martinez - South Pine St. Entrance to Rte 4 heading west 70 Comment
  JEPS120294 Image available Eriastrum ertterae David Gowen 2005-7-1 471 Contra Costa Lime Ridge Open Space. South of summit near power line area. Comment
  CAS-BOT-BC287529  Ericameria linearifolia Alice Eastwood 1915-5-30 4479 Contra Costa Mt Diablo Comment
  CAS-BOT-BC287536  Ericameria linearifolia A. Kellogg; W. G. W. Harford 1868-4-30 548 Contra Costa Mt Diablo Comment
  POM359376  Ericameria linearifolia H. de Forest 1930-3-28 s.n. Contra Costa Mt. Diablo Comment
  UC86674  Ericameria linearifolia unknown 1889-5-1 Contra Costa Antioch Comment
  UCD131386  Ericameria linearifolia P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  SEINET5552883  Ericameria linearifolia H. S. Gentry 1931-1 54 Contra Costa Collected near Mt. Diablo. 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
  UCD150888  Erigeron canadensis James A. Neilson Jr. 1972-11-2 3607 Contra Costa Channel of Walnut Creek ca. 1 mi. north of junction of Pine Creek Elevation estimated using Google Earth by label maker. 1 Comment
  JEPS79321  Erigeron foliosus var. franciscensis Edward Lee with Annetta Carter 1935-8-17 1633 Contra Costa Antioch sand-dunes Comment
  SBBG44960  Erigeron petrophilus J. A. Ewan 1936-7-5 9735 Contra Costa Wildcat Crk Comment
  CAS-BOT-BC295955  Erigeron philadelphicus Mary L. Bowerman 1935-5-16 2998 Contra Costa Mount Diablo. Russelman [Russellmann] Park road at Gregory Ranch junction 289 Comment
  RSA401488C  Eriodictyon californicum Cora Mae Life 1923-7-4 95 Contra Costa Mt Diablo. Comment
  UC35509  Eriodictyon californicum F. P. McLean March, 1875 Contra Costa Mt. Diablo Comment
  POM300577  Eriogonum Mary L. Bowerman 1932-11-11 1639 Contra Costa Little below Moses Rock Spring: dry grassy ridge, leading up from Buckle Point (on west road). Comment
  CDA22474  Eriogonum angulosum J. Simmen 1958-11-6 1515 -58 Contra Costa Palm Tract, Brentwood. 0 Comment
  CAS-BOT-BC253239  Eriogonum fasciculatum var. foliolosum R. E. Frenkel 1963-11-2 304 Contra Costa Tilden Park, 1/4 mile south-east of Tilden Park Botanical Garden on east side of South Park Drive Comment
  UCR263530  Eriogonum gracile Barbara Ertter, Tony Morosco 1996-7-27 15040 Contra Costa north side of Mount Diablo south of Clayton, where Cardinet Oaks Road crosses Donner Creek 335 Comment
  RSA0027415  Eriogonum gracile Barbara J. Ertter 1997-8-24 15773 Contra Costa Mount Diablo, SE side of peak on Mary Bowerman/Fire Interpretive Trail. Comment
  RSA97513  Eriogonum gracile var. gracile Beecher Crampton 1949-7-15 480 Contra Costa Foothills, above the site of the extinct town of Judsonville, south of Antioch Comment
  CAS-BOT-BC259139  Eriogonum latifolium John Thomas Howell 1930-7-4 5336 Contra Costa In the north Berkeley Hills Comment
  UC635006  Eriogonum luteolum var. luteolum H. L. Mason 1929-9-21 5434 Contra Costa 3 mi above, along Marsh Creek road Clayton Comment
  CAS-BOT-BC268906  Eriogonum nudum var. auriculatum Mary L. Bowerman 1932-9-17 1578 Contra Costa Mount Diablo. Donner Canyon, west branch. (Below fork of west branch.) Comment
  UC692165  Eriogonum nudum var. auriculatum Mary L. Bowerman 1933-9-3 2425 Contra Costa North Peak ridge Mount Diablo Comment
  UC1795738  Eriogonum nudum var. auriculatum Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14675 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay; grassland/scrub at northeast corner of area. Comment
  UC2028205  Eriogonum nudum var. auriculatum Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15662 Contra Costa Point Richmond, crest of road. Comment
  UCSB1460  Eriogonum nudum var. auriculatum Keator, Glenn 1959-7-1 Contra Costa 1/4 mile above Laurel camp on Mt. Diablo Comment
  CAS-BOT-BC269816  Eriogonum nudum var. psychicola Peter Rubtzoff 1951-10-7 826 Contra Costa Along lower San Joaquin River, east of Antioch Comment
  UC635005  Eriogonum nudum var. pubiflorum H. L. Mason 1929-9-21 5433 Contra Costa 3 mi above Clayton (Marsh Creek road) Comment
  UC692195  Eriogonum nudum var. pubiflorum Mary L. Bowerman 1932-9-17 1586 Contra Costa Donner Canoyn, w fork toward mouth Mount Diablo Comment
  UC692196  Eriogonum nudum var. pubiflorum Mary L. Bowerman 1932-9-17 1586 Contra Costa Donner Canoyn, w fork toward mouth Mount Diablo Comment
  CAS-BOT-BC267442  Eriogonum truncatum John Thomas Howell 1934-4-8 11816 Contra Costa 10 miles from Clayton on Marsh Creek Road Comment
  POM165269  Eriogonum truncatum C. F. Baker 1903-4-28 2833 Contra Costa Marsh Creek, Mount Diablo Comment
  UCR139461  Eriogonum truncatum J. T. Howell 1934-4-8 11816 Contra Costa San Francisco Bay Region, [Black Hills] 10 mi from Clayton [SE] on Marsh Creek Road 366 Comment
  CAS-BOT-BC267870  Eriogonum umbellatum var. bahiiforme H. E. McMinn No date on label. 94 Contra Costa Near summit of Mt. Diablo Comment
  JEPS108318  Eriogonum umbellatum var. bahiiforme David Gowen 2005-5-29 399 Contra Costa West of Morgan Territory Rd. and the main entrance to Morgan Territory Regional Preserve. Rocky area west of summit of hill 2581 (Tassajara Pk.?). Comment
  CAS-BOT-BC262353  Eriogonum vimineum Alice Eastwood 1941-6-22 s.n. Contra Costa Near summit of Mt. Diablo Comment
  CAS-BOT-BC298507  Eriophyllum confertiflorum Alice Eastwood 1915-6-21 4739 Contra Costa San Leandro Comment
  UC691686  Eriophyllum confertiflorum var. confertiflorum Mary L. Bowerman 1933-5-18 2121 Contra Costa near Blackberry Spring; Mount Diablo Comment
  UC691660  Eriophyllum jepsonii Mary L. Bowerman 1935-5-30 3087 Contra Costa Eagle Point Ridge 304 Comment
  UC691685  Eriophyllum jepsonii Mary L. Bowerman 1931-6-2 918 Contra Costa Gregory Ranch Road Comment
  CAS-BOT-BC300925  Eriophyllum jepsonii Mary L. Bowerman 1936-5-6 3409 Contra Costa Mount Diablo. Uncle Sam Canyon 304 Comment
  UC2027777  Eriophyllum jepsonii Barbara Ertter, Holly Forbes 1997-4-20 15562 Contra Costa north base of Mount Diablo, Eagle Peak Trail on NE side of Eagle Ridge below Twin Peaks. Comment
  JEPS34610  Eriophyllum lanatum var. achilleoides W. L. Jepson 1919-6-8 8328 Contra Costa Mt. Diablo Comment
  UC507132  Eriophyllum lanatum var. achilleoides Lincoln Constance 1933-6-25 E 100 Contra Costa north slope near summit Mount Diablo 1097 Comment
  UC507133  Eriophyllum lanatum var. achilleoides Lincoln Constance 1933-6-25 E 101 Contra Costa just below summit on south slope Mount Diablo 1158 Comment
  UC697147  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1938-6-14 3687 Contra Costa 0.3 mi below Muir Area Mt. Diablo 960 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-BC300979  Eriophyllum lanatum var. achilleoides L. Constance 1933-6-25 E 96 Contra Costa Southwest slopes of Mount Diablo, 1/2-way up Comment
  CAS-BOT-BC300981  Eriophyllum lanatum var. achilleoides Miss E. Cannon 1897-6-6 s.n. Contra Costa Pine Canyon, Mt. Diablo Comment
  RSA97649  Eriophyllum lanatum var. achilleoides J. T. Howell 1950-7-5 26636 Contra Costa Brushy slope above Nortonville Comment
  JEPS107133  Eriophyllum staechadifolium Barbara Ertter, Brad Olson 1994-5-7 12759 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  JEPS111713  Eriophyllum staechadifolium D. G. Kelch 2004-5-21 04 .218 Contra Costa Crockett - West Valona Along San Pablo Ave. ~1 k. west of Carq. Bridge 57 Comment
  UC1795733  Eriophyllum staechadifolium Barbara Ertter, Brad Olson 1994-5-7 12759 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  JEPS111971  Erodium cicutarium D. G. Kelch 2003-3-21 03 .67 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 2 miles west of Martinez Contra Costa County CA. Grassy hill above cottonwood tree. Just south of end gate of Carquinez Scenic Drive 40 Comment
  UC606753  Erodium cicutarium Edward Lee 1936-4-19 1994 Contra Costa Red Rock San Francisco Bay 54 Comment
  POM127732  Erodium macrophyllum Katherine Brandegee 1907-5-5 s.n. Contra Costa Judsonville near Antioch. Comment
  UC202739  Erodium macrophyllum Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  UC35196  Erodium macrophyllum V. King Chesnut 1888-4-14 Contra Costa Moraga Valley Comment
  UC692705  Erodium moschatum Mary L. Bowerman 1931-4-4 655 Contra Costa 4.5 mi from entrance Mount Diablo (west road) Comment
  UC692373  Eryngium aristulatum var. aristulatum Mary L. Bowerman 1935-5-22 3054 Contra Costa saddle w. Twin Peaks (just s. of crest, Mt. Diablo); Mt. Diablo 441 Comment
  CDA29692  Eryngium armatum D. G. Kelch, D. A. Weinstein 2009-7-15 9 .494 Contra Costa Carquinez Strait; Point Pinole. Comment
  JEPS121010  Eryngium armatum D. G. Kelch 2007-6-16 07 .464 Contra Costa Pt. Pinole, N spur of Park, near shore Comment
  UC1584829  Eryngium articulatum Jerry Powell 1990-8-29 1587 Contra Costa Antioch Nat'l Wildlife Refuge Comment
  UC692322  Eryngium castrense Mary L. Bowerman 1935-6-28 3170 Contra Costa Mt. Diablo, Chase Pond Comment
  CDA38316  Eryngium jepsonii D. G. Kelch 2002-5-13 2 .003 Contra Costa Carquinez Strait Region; Pt. Costa - Shore: Above Pt. Costa (above road between McEwen and EBRP staging area). Along old river channel. Comment
  CAS-BOT-BC40766  Erysimum capitatum Alice Eastwood; John Thomas Howell 1936-4-19 2151 Contra Costa Antioch sand hills. Comment
  CAS-BOT-BC40767  Erysimum capitatum G. B. Rossbach 1955-3-13 570 Contra Costa Along tidal estuary of San Joaquin River just east of Antioch. 24 Comment
  CAS-BOT-BC40769  Erysimum capitatum G. B. Rossbach; R. P. Rossbach 1938-6-5 858 b Contra Costa Along tidal estuary of San Joaquin River just east of Antioch. Comment
  CAS-BOT-BC40771  Erysimum capitatum A. A. Heller 1908-4-16 8898 Contra Costa Eat of Antioch. 22 Comment
  RSA0008586  Erysimum capitatum var. angustatum James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  UC10540  Erysimum capitatum var. capitatum J. Burtt Davy 1895-4-7 876 Contra Costa Antioch; ; Type locality of Cheiranthus angustatus Greene Comment
  UCD114997  Erysimum capitatum var. capitatum R. F. Hoover 1935-3-10 s.n. Contra Costa Antioch. Comment
  UC2046329  Erythranthe nasuta Barbara Ertter with Alan Prather 2003-6-7 18200 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, creek alongside west end Stone Corral Trail, south of Highland Ridge Trail junction. Comment
  UC692180  Eschscholzia californica Mary L. Bowerman 1932-3-27 1144 Contra Costa near Mitchell Rock (on e side); Mount Diablo Comment
  RSA39848  Eschscholzia californica var. crocea P. A. Munz 1947-10-8 12190 Contra Costa Antioch 12 Comment
  UC2028162  Eucalyptus sideroxylon Barbara Ertter with Laura Fujii 1999-3-7 16483 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, near Alvarado Staging area at NW end of park, along hiking road. Comment
  UC1789212  Eucalyptus tereticornis Barbara Ertter 1998-5-10 16116 Contra Costa Lime Ridge Open Space, single sapling in quarry area on west side. [Flowering material collected from same plant in 2001 as Ertter17604] Comment
  RSA720801  Eucrypta chrysanthemifolia Mary L. Bowerman 1995-7-2 s.n. Contra Costa Mount Diablo. Back Canyon. Comment
  UC1613298  Eucrypta chrysanthemifolia var. chrysanthemifolia Charles M. Belshaw 1935-6-24 1022 Contra Costa Sobrante Hills Comment
  UC592185  Eucrypta chrysanthemifolia var. chrysanthemifolia H. L. Mason 1925-3-10 1292 Contra Costa Mount Diablo Comment
  CDA18018  Euphorbia oblongata R. Fonseca 1999-5-27 PDR 1219265 Contra Costa Along Franklin Canyon Rd, Martinez. 0 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
  UC1087494  Euphorbia oblongata T. C. Fuller 1958-7-30 Contra Costa 3 mi w of Martinez (State Highway 4); State Highway 4 Comment
  UC2028962  Euphorbia peplus Barbara Ertter 2003-2-8 18092 Contra Costa Richmond Field Station (UC-Berkeley), weedy edge of interior open space next to Egret Drive. Comment
  UC199008  Euphorbia spathulata Chesnut and Drew 1889-4-18 Contra Costa Brentwood Comment
  UC2062607  Euphorbia spathulata Barbara Ertter with Dan Norris 2001-4-8 17590 Contra Costa Lime Ridge Open Space east of Walnut Creek. Comment
  UC2031442  Eurybia radulina Barbara Ertter 1990-11-11 9710 Contra Costa NW Contra Costa County: Carquinez Straits Regional Park east of Crockett Comment
  UCD159505  Euthamia occidentalis D. S. Park 2010-9-11 253 Contra Costa Waterfront Rd. Growing in ditch along roadside. Disturbed. Wet. 5 Comment
  JEPS118744  Extriplex joaquinana Sarah Lynch 2012-8-1 s. n. Contra Costa Tassajara Valley (south of Danville); north of Camino Tassajara and west of Finley Road Comment
  CDA37818  Fallopia japonica Slate 2012-6-29 PDR# 1649771 Contra Costa Lafayette; southwestern corner of Village Center & Mt. Diablo Blvds. 0 Comment
  CDA2178  Festuca arundinacea T. C. Fuller 1961-9-13 7002 Contra Costa Hwy J4, ca. 4 miles southeast of Byron. 0 Comment
  CAS-BOT-BC282487  Festuca elmeri L. R. Abrams 1921-5-25 8051 Contra Costa 4 1/2 mi. from summit, Mt. Diablo Comment
  UC691232  Festuca elmeri Mary L. Bowerman 1935-5-3 2963 Contra Costa Sloan Road Mount Diablo 487 Comment
  UC2028144  Festuca microstachys Barbara Ertter 1998-4-4 15971 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, Fossil Hill. Comment
  CHSC116605  Festuca microstachys var. pauciflora Lowell Ahart; Josephine Guardino 2016-4-19 20792 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along south side of road exit at Los Vaqueros Marina, 2.3 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  CDA32670  Festuca pratensis D. G. Kelch, Andrew G. Murdock 2004-5-7 4 .195 Contra Costa Carquinez Strait; Canada del Cierbo. Comment
  UC1103711  Festuca rubra J. P. Tracy 1900-3-24 615 Contra Costa Point Richmond San Francisco Bay Region 15 Comment
  UC2028438  Ficus carica Barbara Ertter with Chris Thayer 1996-10-25 15356 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park Comment
  POM57345  Filago californica F. T. Bioletti 1892-1 s.n. Contra Costa [Unspecified] 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
  CAS-BOT-BC62924  Frangula californica subsp. tomentella H. E. McMinn 1922-10-17 401 Contra Costa Mitchell canyon - Mt. Diablo. Comment
  UC1123360  Fraxinus dipetala C. M. Belshaw 1936-5-15 2128 Contra Costa Stewartsville Mt. Diablo Quad. 228 Comment
  UC1753841  Fraxinus dipetala Annetta M. Carter, Leo Bowerman 1935-6-1 875 Contra Costa Mt. Diablo. NW facing slope, W side of main peak. 1005 Comment
  UC691836  Fraxinus dipetala Mary L. Bowerman 1933-4-26 1935 Contra Costa North Peak, ridge running se from the peak Mount Diablo 518 Comment
  JEPS61926  Fritillaria affinis W. L. Jepson 1918-6-3 7573 Contra Costa Donner Canyon; Mt. Diablo 533 Comment
  UC692004  Fritillaria affinis Mary L. Bowerman 1933-5-9 2053 Contra Costa Mount Diablo, Mountain House Canyon Mountain House Canyon; Mount Diablo, Mountain House Canyon 670 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
  CDA28928  Fritillaria agrestis V. Guise 2009-3-2 PDR# 1503558 Contra Costa Livermore, Morgan Territory Road, near Doubletree Lane. 0 Comment
Read comments
Oct 1 2011
  UC765864  Fritillaria liliacea R. F. Hoover 1938-3-8 2819 Contra Costa Berkeley Country Club Comment
  JEPS111523  Fumaria capreolata D. G. Kelch 2005-5-5 05 .208 Contra Costa Point Pinole - Giant Marsh Giant Salt Marsh 3 Comment
  SBBG122904  Fumaria capreolata B. Ertter 1999-3-21 16486 Contra Costa Miller Knox Regional Park near Pt Richmond Comment
  UC1789195  Fumaria capreolata Barbara Ertter 1999-3-21 16486 Contra Costa Miller Knox Regional Park near Point Richmond, edge of old excavation into rock (southeast of Richmond Ramblers building). Comment
  UCD95119  Fumaria capreolata Barbara Ertter 1999-3-21 16486 Contra Costa Miller Knox Regional Park, near Point Richmond. Southeast of Richmond Ramblers building. Comment
  UC1177368  Galium andrewsii subsp. gatense Peter H. Raven 1950-7-5 2478 Contra Costa near summit Mt. Diablo 1097 Comment
  CDA42125  Galium aparine D. G. Kelch 2005-5-5 5 .211 Contra Costa Carquinez Strait Region; Point Pinole - Giant Marsh. Giant Salt Marsh. Comment
  OBI70584  Galium aparine D. G. Kelch 2007-3-24 7 .091 Contra Costa Ozol; between Port Costa and Martinez near old brick quarry 52 Comment
  UC1618054  Galium aparine Donald G. Nelson 1937-3-30 469 Contra Costa along Marsh Creek Rd. between Clayton and Byron Comment
  HSC19785  Galium aparine Greg Bos 1963-4-20 86 Contra Costa Pinole Valley Rd., SE of Pinole Flat Meadow area 76 Comment
  LA208411  Galium californicum Joseph Andorfer Ewan; 1935-5-26 9299 Contra Costa Tufts in rock crevices and about outcrops. E slope Bald Peak, San Pablo Ridge 548 Comment
  UC691534  Galium californicum subsp. californicum Mary L. Bowerman 1931-5-21 883 Contra Costa ridge w Curry-Cave Point Trail; Mount Diablo 533 Comment
  UCR263548  Galium californicum subsp. californicum Barbara Ertter, Susan D'Alcamo 1998-6-12 16202 Contra Costa San Francisco Bay Region, along Curry Canyon Road on south side of Mount Diablo, halfway between Knobcone Point Road and Sheepherder Springs Trail Comment
  RSA720805  Galium murale Barbara Ertter, Mary Bowerman, Lisa Schultheis 1995-3-31 13942 Contra Costa Mount Diablo State Park. Lower end of Mitchell Canyon S of Clayton. 183 Comment
  UC2027989  Galium murale Barbara Ertter 1998-5-3 16031 Contra Costa Pine Ridge summit of Wall Point Road at southwest base of Mount Diablo. Comment
  JEPS41059  Galium porrigens var. porrigens Rimo Bacigalupi and L. R. Heckard 1965-5-11 9086 Contra Costa se Richmond; San Francisco Bay, Brooks Island 30 Comment
  CAS-BOT-BC304348  Gamochaeta pensylvanica Walter & Irja Knight 1967-6-12 s.n. Contra Costa Charles Lee Tilden Regional Park. In the botanical garden Comment
  UC697199  Gamochaeta ustulata Mary L. Bowerman 1942-6-1 3846 Contra Costa Lower Rock City Camp Mount Diablo Comment
  CAS-BOT-BC200632  Garrya elliptica H. E. McMinn 1925-3-30 1403 Contra Costa Near summit Thornhill Rd and Skyline Blvd. Comment
  CDA31081  Garrya elliptica D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .217 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  SBBG50835  Garrya elliptica M. Siri 1974-5-12 33 Contra Costa above old fire rd, E slope of W ridge, Wildcat Cyn, 0.5 mi N of Leneve, Richmond Comment
  RSA721733  Garrya flavescens subsp. flavescens Barbara Ertter, Holly C. Forbes 1996-2-11 14549 Contra Costa North side Mount Diablo; Murchio Gap on Median Ridge Road. 732 Comment
  CAS-BOT-BC169943  Garrya fremontii H. E. McMinn 170 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC169947  Garrya fremontii Mary L. Bowerman 1930-6-7 s.n. Contra Costa Meridian Peak Summit Comment
  SEINET3558664 Image available Garrya fremontii Lewis S. Rose 1934-2-28 34041 Contra Costa Summit Mount Diablo. Comment
  CDA28816  Gastridium phleoides D. G. Kelch, Abigail Moore, Jessica Kolman 2009-5-3 9 .316 Contra Costa Carquinez Strait; Crockett; on hill south of 5th St. with transmission tower on sandstone outcrop. Comment
  CAS-BOT-BC282607  Gastridium phleoides Virginia E. Long 1933-6-14 224 a Contra Costa Curry Cave Trail, Mt. Diablo 457 Comment
  SEINET10963567  Gastridium phleoides Virginia E. Long 1933-6-14 Long 224 a Contra Costa Mt. Diablo. Grassy ridge of Curry Cave trail. 366 Comment
  CDA34087  Genista monspessulana D. G. Kelch, D. A. Weinstein 2011-3-5 11 .032-B Contra Costa Carqionez Strait Region.; Pt. Pinole. Comment
  JEPS87954  Genista monspessulana Barbara Ertter 1991-5-12 9816 Contra Costa sw corner El Cerrito (Point Isabel Regional Shoreline, on San Francisco Bay); San Francisco Bay Comment
  UCR265172  Genista monspessulana Barbara Ertter 1991-5-12 9816 Contra Costa Central Coast, Point Isabel Regional Shoreline in southwest corner of El Cerrito, on San Francisco Bay; along old railroad right-of-way between bay and Salicornia marsh. 4 Comment
  UC17121  Geranium carolinianum State Survey 1862-4-26 998 Contra Costa near Martinez Comment
  HSC8643  Geranium carolinianum Greg Bos 1963-3-9 31 Contra Costa Point Isabel, Richmond 3 Comment
  JEPS111979  Geranium dissectum D. G. Kelch 2003-3-21 03 .75 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  UC2032836  Geranium dissectum Doran, Andrew Scott 2012-3-20 706 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  UC692706  Geranium dissectum Mary L. Bowerman 1930-6-28 401 Contra Costa Lower Silver Spring Mount Diablo Comment
  SD41283  Geranium dissectum McCallum 1933-4-26 3698 Contra Costa Damp roadside on the way to Tassajara Comment
  UC1057453  Geranium dissectum G. Thomas Robbins 1937-4-25 142 Contra Costa e of La Vista Comment
  CDA29060  Geranium molle D. G. Kelch 2006-5-7 6 .154 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  JEPS111972  Geranium molle D. G. Kelch 2004-5-9 04 .203 Contra Costa Crockett - Edwards Canyon Upper Edwards Canyon 160 Comment
  UC2029017  Geranium robertianum Barbara Ertter 1999-7-17 16768 Contra Costa Tilden Regional Park, trail to Jewel Lake paralleling Wildcat Creek, through thick woodland growth. Comment
  UC691599  Gilia achilleifolia subsp. achilleifolia Mary L. Bowerman 1935-5-8 2970 Contra Costa Muir Area, Mount Diablo Mount Diablo, Muir Area Comment
  UC796580  Gilia achilleifolia subsp. achilleifolia Reed C. Rollins 1946-3-25 3045 Contra Costa w slope of Mount Diablo Mount Diablo Comment
  UC2022570  Gilia achilleifolia subsp. multicaulis Lewis S. Rose 1934-3-21 34067 Contra Costa 6 mi E of Clayton. Comment
  UC691602  Gilia achilleifolia subsp. multicaulis Mary L. Bowerman 1930-6-7 286 Contra Costa summit of Meridian Peak Mt. Diablo, Meridian Peak Comment
  SEINET12278771  Gilia capitata H. M. Hall 1901-1 s.n. Contra Costa Region of San Francisco Bay, Mt. Diablo Comment
  UCR86951  Gilia capitata subsp. staminea Peter L. Morrell, Donna Krause 1993-5-16 239 Contra Costa Along side of road 100m west of 1701 Wilbur Ave., Antioch, between Southern Pacific tracks and San Joaquin River (0.5 miles west of Calif. Hwy 4/160) 6 Comment
  UC691677  Gilia clivorum Mary L. Bowerman 1935-4-19 2858 Contra Costa near Turtle Rock (dry hillside on opposite side of road); Mount Diablo, near Turtle Rock 457 Comment
  UC691678  Gilia clivorum Mary L. Bowerman 1935-4-22 2894 Contra Costa ridge w Pioneer Road (w of Stage Road) (Mount Diablo); Mount Diablo 822 Comment
  UC908576  Gilia tricolor subsp. tricolor Herbert L. Mason 1929-3-29 5118 Contra Costa Mount Diablo 762 Comment
  UC22422  Glaux maritima Jos. Burtt Davy 1900-6-7 6665 Contra Costa near Martinez Comment
  RSA721738  Gnaphalium canescens subsp. beneolens Barbara Ertter, Kristin Ertter 1995-7-11 14469 Contra Costa Pine Creek on west side of Mt. Diablo southwest of Walnut Creek; Diablo Foothills Regional Park Comment
  CDA28927  Gnaphalium luteoalbum D. G. Kelch, Abigail Moore, Jessica Kolman 2009-5-3 9 .318 Contra Costa Carquinez Strait; W of 5th St Prairie, Crockett. 0 Comment
  CDA31363  Gnaphalium ramosissimum D. G. Kelch 2006-8-11 6 .373 Contra Costa Carquinez Strait.; Top of Edward s Canyon. Crockett. Comment
  UCR247431  Gnaphalium stramineum Dean Kelch, Abigail Moore 2009-5-30 09 .317 Contra Costa Carquinez Strait, west of 5th St Prairie, Crockett 75 Comment
  UC35376 Image available Godetia blasdalei W. C. Blasdale 1893-7-11 Contra Costa Point Isabel Comment
  OBI16390  Grindelia camporum Robert F. Hoover 1966-8-31 9945 Contra Costa 1.5 mi E of Danville, at jctn of Tassajara and Freitas Rds. Comment
  RSA93033  Grindelia camporum F. W. Peirson 1923-7-1 3886 Contra Costa Mt. Diablo Comment
  CDA6077  Grindelia camporum var. camporum D. G. Kelch, A. G. Murdock 2004-6-19 4 .28 Contra Costa Carquinez Strait; Crockett - Tormey Headlands. Along railroad tracks west of Carquinez Bridge Cockett (Valona). Comment
  CAS-BOT-BC305219  Grindelia hirsutula Alice Eastwood 1915-6-21 4730 Contra Costa San Leandro Comment
  CAS-BOT-BC305234  Grindelia hirsutula L. R. Abrams 1916-6-30 5713 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC305237  Grindelia hirsutula Lewis S. Rose 1954-9-27 54116 Contra Costa Byron 6 Comment
  CAS-BOT-BC305246  Grindelia hirsutula L. R. Abrams 1910-10-9 4357 Contra Costa Between San Ramon and Dublin Comment
  JEPS96224  Grindelia hirsutula Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10716 Contra Costa n Pittsburg (near confluence of Sacramento and San Joaquin rivers, w-most point opposite Pittsburg marina); Browns Island Comment
  UC1118559  Grindelia hirsutula H. S. Yates 1934-9-2 4079 Contra Costa Wildcat Creek Concord Quad., Wildcat Creek 304 Comment
  UC1118576  Grindelia hirsutula G. T. Nordstrom 1937-10-28 1408 Contra Costa 1.6 mi nne Somersville; Mt. Diablo Quad. 182 Comment
  UC2042497  Grindelia hirsutula Barbara Keller 2007-7-10 Contra Costa Mt. Diablo State Park, along Summit Rd. Comment
  POM193965  Grindelia hirsutula var. davyi J. T. Howell 1929-7-7 4332 Contra Costa 2 miles S of Rodeo. Comment
  JEPS54093  Guillenia lasiophylla W. L. Jepson 1921-5-22 9219 Contra Costa s slope Mt. Diablo 792 Comment
  JEPS54107  Guillenia lasiophylla H. P. Chandler 1900-3-24 Contra Costa Briones Hills Region of Mount Diablo Comment
  JEPS68953  Guillenia lasiophylla Edward Lee 1935-3-10 1283 Contra Costa Donovan Road, w watershed of Kirker Creek Kirker Pass, Kirker Creek Comment
  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
  POM300575  Guillenia lasiophylla Mary L. Bowerman 1932-3-23 1131 Contra Costa Ridge E of Donner Canyon. 274 Comment
  CAS-BOT-BC304576  Gutierrezia californica Lewis S. Rose 1932-10-2 32655 Contra Costa Marsh Creek Road Comment
  JEPS40433  Gutierrezia californica William Turner 1965-10-13 Contra Costa in the sand hills Antioch (along the San Joaquin River); San Joaquin River, Antioch Comment
  CAS-BOT-BC304580  Gutierrezia californica L. R. Abrams 1917-9-13 6728 Contra Costa Patterson Pass Comment
  UC1050044  Hebe traversii N. Floy Bracelin 1944-7-23 1507 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  SBBG122850  Hedypnois cretica B. Ertter 1994-5-23 12809 Contra Costa end of Rydin Rd, Pt Isabel at S end of Richmond 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
  JEPS111680  Helenium puberulum D. G. Kelch 2003-8-13 03 .134 Contra Costa Pinole Creek 68 Comment
  CAS-BOT-BC314698  Helianthella californica var. californica Paul F. Covel 1938-5-8 s.n. Contra Costa Mount Diablo Comment
  CAS-BOT-BC305322  Helianthella castanea Alice Eastwood 1915-5-30 4475 Contra Costa Mitchel [Mitchell] Canyon, Mt. Diablo Comment
  JEPS112743  Helianthella castanea Dean W. Taylor 2001-3-21 17614 Contra Costa Mount Diablo; Mount Diablo State Park, near Balancing Rock (ridge forming southerly watershed boundary Curry Creek Canyon), along fire road descending from ridge into Devils Slide (East Fork Sycamore Creek) 457 Comment
  POM52002  Helianthella castanea H. M. Hall 1916-5-31 10137 Contra Costa Mount Diablo, north slope of summit 1159 Comment
  UC194922  Helianthella castanea H. M. Hall 1916-5-31 10137 Contra Costa n slope of summit Mt. Diablo 1158 Comment
  UC194923  Helianthella castanea H. M. Hall 1916-5-31 10137 a Contra Costa exposed flat on s side Mt. Diablo Comment
  CAS-BOT-BC223916  Helianthemum scoparium Robert F. Hoover 1939-5-20 4108 Contra Costa Head of Markley Canyon Comment
  POM300646  Helianthemum scoparium var. scoparium Mary L. Bowerman 1932-4-9 1332 Contra Costa Ridge to Wall Point, from near Rock City Comment
  UC2028434  Helianthus californicus Barbara Ertter with Chris Thayer 1996-10-25 15351 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothill Regional Park Comment
  UC521719  Helianthus californicus Joseph Andorfer Ewan 1933-10-15 8037 Contra Costa sw slope Mount Diablo (along open creek bed or burned area) Comment
  UC2070513  Helianthus californicus Barbara Ertter 2002-8-24 18034 Contra Costa Lower Perkins Canyon on NE base of Mount Diablo. Comment
  POM301045  Helianthus gracilentus Mary L. Bowerman 1935-5-22 3055 Contra Costa Mt. Diablo: Saddle west of Twin Peaks (Eagle Point ridge). Chapparal from saddle up to Twin Peaks (southwest face) and downwards into Uncle Sam Canyon. Comment
  JEPS111836  Heliotropium curassavicum A. G. Murdock 2004-6-4 327 Contra Costa Pacheco Marsh Near shore on back of dikes 2 Comment
  SEINET3840820  Heliotropium curassavicum Unknown 2006-8-6 6 .361 Contra Costa Rodeo Creek, Rodeo Creek channel 4 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
  RSA455876  Hemizonia E. E. Stanford 1930-9-20 2099 Contra Costa Near Walnut Creek Comment
  CDA37817  Hemizonia congesta Godwyn 2012-6-22 PDR# 1641308 Contra Costa Pleasanton; 7300 Camino Tassajara. 0 Comment
  OBI16238  Hemizonia congesta subsp. lutescens Robert F. Hoover 1969-9-1 11568 Contra Costa Between San Pablo and Pinole Comment
  UC201235  Hemizonia congesta subsp. lutescens H. M. Hall 1914-8-23 9860 Contra Costa 2 km nw San Pablo 15 Comment
  CAS-BOT-BC306263  Hemizonia congesta subsp. lutescens H. M. Hall 1914-9-13 9877 Contra Costa Easterly shores of San Francisco Bay near San Pablo Comment
  LA203706  Hemizonia congesta subsp. luzulifolia John Thomas Howell; 1930-9-28 5488 Contra Costa 2 mi. from Concord on road to Walnut Creek Comment
  UC201236  Hemizonia congesta subsp. luzulifolia H. M. Hall 1914-8-23 9858 Contra Costa Richmond Region of San Francisco Bay, Richmond Comment
  UC912566  Hemizonia congesta subsp. luzulifolia Herbert L. Mason 7058 Contra Costa Laundry Farm Oakland Hills Comment
  CAS-BOT-BC314856  Hemizonia congesta subsp. luzulifolia R. Bacigalupi 1922-9-24 s.n. Contra Costa Along road between Concord and Clayton Comment
  RSA121592  Hemizonia fitchii H. S. Yates 1934-9-2 4086 Contra Costa 2 miles S of Mt. Diablo. 579 Comment
  POM301047  Hemizonia luzulifolia Mary L. Bowerman 1931-10-13 1061 Contra Costa Sycamore Valley, W of Sycamore Creek. Comment
  RSA81667  Hemizonia parryi subsp. congdonii James I. McMurphy 1909-9-24 s.n. Contra Costa San Ramon Comment
  RSA81617  Hemizonia pungens subsp. maritima James I. McMurphy 1909-5-20 s.n. Contra Costa Antioch. Comment
  POM53580  Hemizonia pungens subsp. pungens C. F. Baker 1903-4-27 2875 Contra Costa Byron. Comment
  JEPS100155  Hesperocnide tenella G. Smick 2003-4-29 GAS 155 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC403790  Hesperocnide tenella Peter Rubtzoff 1980-6-2 9451 Contra Costa U.C. Russell Evergreen Tree Farm (on Happy Valley Road ca. 3.5 miles northwest of Mt. Diablo Blvd in Lafayette and ca. 0.5 mile southeast of Bear Creek Road junction Comment
  UC1818919  Hesperocnide tenella Barbara Ertter, Mary Bowerman et al. 1995-5-7 14054 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, road behind honses traversing north facing slope, mixed forest with much undergrowth. Comment
  CAS-BOT-BC167440  Hesperolinon breweri Alice Eastwood 1915-5-30 4556 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC167445  Hesperolinon breweri K. C. 1884-6-1 s.n. Contra Costa Antioch Comment
  SBBG29918  Hesperolinon breweri J. T. Howell 1942-7-19 Contra Costa NE of Deer Flat, Mt Diablo Comment
  UC1212211  Hesperolinon breweri Helen K. Sharsmith 1947-6-2 3947 Contra Costa 0.6 mi from summit of Clayton-Tassajaro-Livermore road (at headwaters of creek); Mount Diablo, Marsh Creek 304 Comment
  UC692694  Hesperolinon breweri Mary L. Bowerman 1935-6-15 3137 Contra Costa Eagle Point Ridge w 2632; Mount Diablo 762 Comment
  UC2028289  Hesperolinon californicum Barbara Ertter with Dan Norris 1998-6-18 16228 Contra Costa Black Hawk Ridge Road below Knobcone Point Road, south side of Mount Diablo. Comment
  CAS-BOT-BC175984  Hesperolinon californicum Mary L. Bowerman 1933-6-14 2279 Contra Costa Inner Black Hills west of 1970. Mount Diablo Comment
  UC187375  Hesperomecon linearis C. F. Baker 1903-4-25 2802 Contra Costa Antioch Comment
  UC35090  Hesperomecon linearis W. C. Blasdale 1893-5-13 Contra Costa Antioch Comment
  CAS-BOT-BC422502  Hesperomecon linearis C. F. Baker 1903-4-25 2802 Contra Costa Antioch Comment
  UC691519  Heterocodon rariflorum Mary L. Bowerman 1935-6-15 3133 Contra Costa Mitchell Canyon; Mount Diablo 640 Comment
  SEINET10972529  Heterocodon rariflorum Hall Hall 2205 Contra Costa SAN JACINTO MTNS 5300 Comment
  UC186817  Heterodraba unilateralis F. T. Bioletti 1892-1 Contra Costa Byron Comment
  JEPS112086  Heteromeles arbutifolia D. G. Kelch 2004-3-13 04 .38 Contra Costa Vaca Canyon. Alhambra Valley Road 165 Comment
Read comments
Sep 3 2013
  CAS-BOT-BC143645  Heteromeles arbutifolia Volney Rattan 1888-8-6 s.n. Contra Costa Oakland Creek, Oakland Comment
  JEPS40434  Heterotheca grandiflora William Turner 1965-11-23 Contra Costa just e Antioch (in the Antioch sand hills); San Joaquin River Comment
  UC1584840  Heterotheca grandiflora Jerry Powell 1990-3-9 1574 Contra Costa Antioch National Wildlife Refuge Comment
  JEPS125919  Heterotheca sessiliflora subsp. bolanderi D. W. Taylor 2001-9-18 17913 Contra Costa Hillslopes above Kirker Pass road, drainage of Kirker Creek, along Nortonville Road directly under high-voltage steel tower electrical transmission lines. Comment
  UC87407  Heterotheca sessiliflora subsp. echioides Mrs. K. Brandegee 1883-7-1 Contra Costa Antioch Comment
  CAS-BOT-BC424186  Heuchera micrantha var. hartwegii L. R. Abrams 1921-5-25 8056 Contra Costa 4 1.2 mi from summit Mt Diablo Comment
  UC1034868  Hibiscus lasiocarpos Ira L. Wiggins 1954-9-5 13121 Contra Costa levee along Bethel Isl. Bethel Isl. Comment
  CAS-BOT-BC325840  Holocarpha heermannii A. D. E. Elmer 1903-7-1 4613 Contra Costa Mount Diablo Comment
  CDA8362  Holocarpha heermannii D. G. Kelch, A. G. Murdock, M. K. Herzenach 2004-9-2 4 .329 Contra Costa Carquinez Strait; Near Summit of Mckewan Rd between Port Costa and I-4. Comment
  UC473456  Holocarpha heermannii John Thomas Howell 1930-9-28 5499 Contra Costa 6.3 mi from Byron (on the Marsh Creek Rd.) 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
  CAS-BOT-BC325845  Holocarpha heermannii David D. Keck 1933-11-2 2622 Contra Costa 5 mi. E. of Clayton on Marsh Creek Road just opposite Mt. Diablo Comment
  POM360677  Holocarpha heermannii Hattie Beuton 1917-09 3287 Contra Costa Mt. Diablo. Comment
  RSA202873  Holocarpha heermannii L. S. Rose 1934-9-9 34462 Contra Costa S slope of Mt. Diablo; 9 miles NE of Danville. Comment
  UC615581  Holocarpha heermannii Beryl O. Schreiber 1933-10-5 935 Contra Costa Comment
  UCD133201  Holocarpha macradenia Walter Knight; Irja Knight 1978-8-8 3101 Contra Costa southeast corner of Interstate 80 and Appian Way, 1 mile north of El Sobrante. Comment
  UC517968  Holocarpha obconica John Thomas Howell 1930-9-28 5501 Contra Costa dry hills along the Marsh Creek Road 5.4 mi from Byron Comment
  CAS-BOT-BC320243  Holocarpha obconica David D. Keck 1933-11-2 2621 Contra Costa Deer Valley, 1/2 mi. S. of road to Brentwood Comment
  CAS-BOT-BC320244  Holocarpha obconica David D. Keck; J. Clausen 1933-10-27 2566 Contra Costa Vasco Road at junction with Byron Road Comment
  CAS-BOT-BC320247  Holocarpha obconica John Thomas Howell 1930-9-28 5500 Contra Costa 6.3 miles from Byron on Marsh Creek Road Comment
  CAS-BOT-BC320260  Holocarpha obconica John Thomas Howell 1930-9-28 5501 Contra Costa On the Marsh Creek Road, 5.4 miles from Byron Comment
  UC2029032  Holocarpha obconica Barbara Ertter 2002-11-11 18072 Contra Costa Round Valley Regional Preserve east of Mount Diablo, along Round Valley Creek/Miwok Trail Comment
  UC913078  Holocarpha obconica David D. Keck and J. Clausen 1933-10-27 2566 Contra Costa Vasco Road at junction with Byron Road Comment
  CAS-BOT-BC320331  Holocarpha virgata Brandegee No date on label s.n. Contra Costa Antioch Comment
  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
  POM179764  Holocarpha virgata subsp. virgata J. T. Howell 1930-9-28 5500 Contra Costa 6.3 miles from Byron on the Marsh Creek Road. Comment
  JEPS99981  Holodiscus discolor A. Langston 2003-6-12 AL 40 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC152592  Holodiscus discolor var. discolor V. Rattan 1886-6-1 s.n. Contra Costa Near Martinez Comment
  UC2070616  Hordeum brachyantherum Barbara Ertter 2002-5-16 17863 Contra Costa Richmond Field Station (UC-Berkeley). Comment
  JEPS111064  Hordeum brachyantherum subsp. brachyantherum Lee Echols 2003-6-15 s.n. Contra Costa N of Lark Drive in SW portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  JEPS41058  Hordeum brachyantherum subsp. brachyantherum Rimo Bacigalupi and L. R. Heckard 1965-5-11 9087 Contra Costa sw Richmond (Brooks Island, San Francisco Bay); San Francisco Bay, Brooks Island Comment
  UC1606308  Hordeum brachyantherum subsp. brachyantherum Barbara Ertter, Chris Thayer 1993-5-7 11689 Contra Costa on Wildcat Canyon Road Hopkins Spring 1/2 mi se Inspiration Point (East Bay Municipal Utilities District land e of Tilden Park); Hopkins Spring, East Bay Municipal Utilities District land 304 Comment
  UC650563  Hordeum depressum Ira L. Wiggins 1930-4-17 4569 Contra Costa E of Mountain House (on road to Byron) Comment
  CAS-BOT-BC284990  Hordeum depressum Ira L. Wiggins 1930-4-17 4569 Contra Costa 2 mi. east of Mountain House on road to Byron Comment
  CDA32929  Hordeum marinum subsp. gussoneanum D. G. Kelch 2009-5-24 9 .301 Contra Costa Carquinez Strait; S of Ozol, W/SW of Martinez. Comment
  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
  JEPS100007  Hordeum murinum G. Smick 2003-3-27 GAS 93 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC284743  Hordeum murinum Walter Knight; Irja Knight 1980-8-26 3802 Contra Costa Growing in Hercules Comment
  UCD36911  Hordeum murinum subsp. glaucum Beecher Crampton 1956-5-14 3375 Contra Costa 5 miles south of Antioch, on Empire Mine Drive, at head of Deer Valley. Comment
Read comments
Aug 17 2011
  CAS-BOT-BC284889  Hordeum murinum subsp. leporinum Alice Eastwood 1921-4-18 10264 Contra Costa Antioch Comment
  UC691195  Hordeum murinum subsp. leporinum Mary L. Bowerman 1931-4-4 645 Contra Costa West Road about one mi from entrance Mount Diablo (= North Road) Comment
  UC691092  Horkelia californica subsp. dissita Mary L. Bowerman 1930-6-28 404 Contra Costa Mount Diablo, Lower Silver Spring Comment
  JEPS112088  Horkelia californica subsp. frondosa D. G. Kelch 2004-5-2 04 .164 Contra Costa Crockett - Edwards Canyon 125 Comment
  UC1606349  Horkelia californica subsp. frondosa Barbara Ertter with Dianne Lake 1991-8-18 10677 Contra Costa e;steep N-facing slope above pilings, ne of Bull Valley staging area Crockett; Carquinez Stsrait Regional Shoreline Comment
  CAS-BOT-BC532055  Horkelia californica var. frondosa Mary L. Bowerman 1933-5-16 2996 Contra Costa Mount Diablo, Russelman Park, just south of the north boundary of sec. 25 396 Comment
  CHSC67907  Hornungia procumbens James D. Jokerst 1989-3-28 3057 Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. Meadow. Comment
  JEPS21869  Hornungia procumbens Annette Waters 1958-4-13 199 Contra Costa 1 mi s of Byron (0.4 mi w from Byron Highway on Byron Hot Springs Road, 0.3 mi n from Byron Hot Springs Road) Comment
  UC1619916  Hydrocotyle verticillata Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10863 Contra Costa just w. Antioch marina (along levee at water's edge, accessed from marina, Dow Wetlands Preserve); Dow Wetlands Preserve Comment
  UC454506  Hydrocotyle verticillata I. J. Condit 1908-8-19 Contra Costa Antioch Comment
  UC24109  Hydrophyllum occidentale State Survey 1800-1 1176 Contra Costa Mt. Diablo summit; Mt. Diablo Comment
  RSA691938  Hypericum calycinum Barbara Ertter 1993-6-25 11907 Contra Costa Oakland-Berkeley Hills, Grizzly Peak Boulevard ca 1/4 miles south of Tilden miniature steam trains (1/4 miles south of junction of Lomas Cantadas), mixed scrub forest. 488 Comment
  UC692603  Hypericum formosum var. scouleri Mary L. Bowerman 1930-6-28 395 Contra Costa Mt. Diablo, Lower Silver Spring Comment
  JEPS124469  Hypericum perforatum subsp. perforatum Daniel Slakey with CNPS Volunteers 2015-7-6 142 Contra Costa Mt. Diablo, Green Ranch Rd. , about 200 meters west of jct. Alder Creek. Comment
  CHSC116616  Hypochaeris glabra Lowell Ahart; Josephine Guardino 2016-4-19 20765 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the east edge of the gravel road, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles southwest of Stockton. 160 Comment
  UC1555372  Hypochaeris radicata Jerry Powell 1988-5-18 1533 Contra Costa w Richmond; Point Molate Comment
  CAS-BOT-BC311406  Hypochaeris radicata Goodwin; Bellue 1932-5-6 s.n. Contra Costa Unspecified Comment
  CAS-BOT-BC133498  Iris Walter Knight; Joanne Dean 1978-8-14 3152 Contra Costa Browns Island Comment
  SEINET3875275  Iris douglasiana Kaye H. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4959 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough. SE portion of Bethel Slough.; 0 610 Comment
  UC4288  Iris longipetala J. Burtt Davy April, 1897 Contra Costa Point Isabel 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
  CAS-BOT-BC112433  Isolepis cernua Walter Knight; I. Knight; E. McClintock; John Thomas Howell; B. Doyle; P. Rae 1978-9-5 3211 Contra Costa Browns Island, Botany Cove Comment
  CAS-BOT-BC324756  Iva axillaris G. Thomas Robbins 1958-7-19 3909 Contra Costa Just south of Castro Point, San Francisco Bay, Richmond Comment
  UCD133394  Iva axillaris Collector Unknown Date Unknown s.n. Contra Costa Exact location unknown. Comment
  JEPS111674  Jaumea carnosa D. G. Kelch 2003-8-13 03 .99 Contra Costa Martinez Marsh 0 Comment
  CAS-BOT-BC340120  Jaumea carnosa Walter Knight; Joanne Dean 1978-8-14 3129 Contra Costa Browns Island Comment
  SEINET12637087  Johnstonella micromeres K. Brandegee 1889-1 s.n. Contra Costa Antioch. Comment
  JEPS58697  Juglans californica var. hindsii W. L. Jepson 1909-4-30 3114 Contra Costa in the sharp gulch upper Walnut Creek, Burton Ranch Comment
  CAS-BOT-BC102305  Juglans hindsii Barrett Anderson 1987-4-30 3486 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD 125 Comment
  JEPS31657  Juglans hindsii C. Ritchie Bell 1951-5-11 Contra Costa 1 1/4 mi ne of St. Mary's College (Las Trampas Creek); Las Trampas Creek 167 Comment
  POM166816  Juglans hindsii L. R. Abrams 1916-7-29 s.n. Contra Costa Walnut Creek Comment
  SJSU6440  Juglans hindsii C. O. Dudley 1966-5-8 109 Contra Costa Reliez Valley, Briones Hills, N of Lafayette 152 Comment
  UC2028644  Juglans hindsii Barbara Ertter with Chris Thayer 1996-10-25 15355 Contra Costa Northwest flank of Mount Diablo Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park Comment
  CDA32294  Juncus ambiguus G. F. Hrusa, D. Crowe 1998-5-8 14363 Contra Costa Sacramento Delta; E end of Dow Chemical property at Pittsburg. Comment
  UC2028428  Juncus articulatus Barbara Ertter 1996-9-19 15300 Contra Costa Antioch Marina, edge of bay in Dow Marsh lands Comment
  JEPS112446  Juncus balticus D. G. Kelch 2003-8-13 03 .108 Contra Costa Martinez Marsh 0 Comment
  JEPS112453  Juncus balticus D. G. Kelch 2005-3-25 05 .73 Contra Costa Hercules - Carbon Carbon Road near Route 4. 50 Comment
  JEPS113079  Juncus gerardi Barbara Ertter, Steve Matson 2003-5-31 18175 Contra Costa Martinez Regional Shoreline, brackish marsh along Pickleweed Trail west of Arch Bridge, Comment
  UC2028546  Juncus occidentalis Barbara Ertter 1998-4-4 15950 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, grasslands along creek south of Indian Valley School. Comment
  SEINET6174583  Juncus phaeocephalus L. Koch 1940-6-5 1004 b Contra Costa Two milees south of San Rafael Ferry Dock Comment
  JEPS111078  Juncus phaeocephalus var. paniculatus Lee Echols 2003-6-2 s.n. Contra Costa N of Lark Drive in SW portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond 15 Comment
  JEPS112436  Juncus xiphioides D. G. Kelch 2004-5-7 04 .201 Contra Costa Ca ada del Cierbo 40 Comment
  UC558454  Juniperus californica C. M. Belshaw 1936-10-25 2021 Contra Costa 0.75 mi ne of North Peak; Mount Diablo 609 Comment
  UC727702  Juniperus californica Milo S. Baker 1946-1-1 11255 Contra Costa ca halfway to summit Mt. Diablo (near roadside at parking place) Comment
  UC2028495  Kniphofia uvaria Barbara Ertter 1999-3-21 16487 Contra Costa Miller Knox Regional Shoreline, Protero Hills SW of Richmond, SE edge of eucalyptus grove S of northern water tank Comment
  UCR246750  Kochia scoparia C. Thayer, Erin McDermott 2006-8-23 082306 A Contra Costa Antioch, northwest corner of Deer Valley Road and Lone Tree Way, along the Mokelumne Aquedduct right-of-way. 45 Comment
  SEINET10607073  Koeleria macrantha Virginia E. Long 1933-6-14 Long 223 a Contra Costa Mt. Diablo. On top of grassy ridge between Curry Cave trail canyon & W. fork. 457 Comment
  CAS-BOT-BC499188  Kopsiopsis strobilacea W. W. Carruth no date on label s.n. Contra Costa Moraga Valley Comment
  CAS-BOT-BC340425  Lactuca saligna John Thomas Howell 1932-10-16 10819 Contra Costa Near San Ramon Comment
  CDA42441  Lamium purpureum D. G. Kelch, Daniel Weinstein 2013-3-9 13 .018 Contra Costa Carquinez Strait; Crockett. Comment
  CAS-BOT-BC412727  Lastarriaea coriacea Dr. A. Kellogg; W. G. W. Harford 1868-1-1 865 Contra Costa Antioch Comment
  CDA22719  Lastarriaea coriacea Sue Bainbridge 2007-4-26 Byron-Airport- 5 Contra Costa Byron Airport. Comment
  CAS-BOT-BC337976  Lasthenia californica Alice Eastwood 1914-3-14 3786 Contra Costa Byron Springs Comment
  CAS-BOT-BC337980  Lasthenia californica James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  RSA181411  Lasthenia californica James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  JEPS10382  Lasthenia californica subsp. californica W. L. Jepson 1931-4-5 15718 Contra Costa adobe flat in hills about Nortonville 457 Comment
  JEPS6970  Lasthenia californica subsp. californica Peter Kamb 1950-3-18 1635 Contra Costa saddle between North Peak and South Peak; Mount Diablo 883 Comment
  CAS-BOT-BC324458  Lasthenia conjugens Barrett Anderson; Thomas Scofield 1995-4-25 4553 Contra Costa Along Highway 4 approximately 2.38 km east of Interestate 80 Highway 4 interchange near Rodeo Comment
  UC90073  Lasthenia conjugens T. S. Brandegee Jun 1884 Contra Costa Walnut Creek 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
  JEPS65187 Image available Lasthenia fremontii L. R. Heckard 1971-4-15 2480 Contra Costa s Byron (at intersection of Holey Rd) Comment
  POM181483  Lasthenia fremontii I. L. Wiggins 1930-4-17 4579 Contra Costa 1/4 mi. S. of Byron Comment
  UCD133741  Lasthenia fremontii Ira L. Wiggins 1930-4-17 4579 Contra Costa 1/4 mile south of Byron. Comment
  CHSC106711  Lasthenia glabrata subsp. glabrata Barbara Ertter; Chris Thayer 1991-6-16 11705 Contra Costa ca. 1/2 mile north of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land east of Tilden Park, perennial grassland above oak stringer, just below right on NE-facing slope. 457 Comment
  RSA31360  Lasthenia glabrata subsp. glabrata Joseph A. Ewan 1935-5-26 9300 Contra Costa E slope Bald Peak, San Pablo Ridge. 549 Comment
  JEPS89771  Lasthenia gracilis Dean William Taylor 991 Contra Costa along Byron Road (J4) at the junction of Holley Road; Byron Road 15 Comment
  CAS-BOT-BC361122  Lasthenia microglossa Brandegee date not specified s.n. Contra Costa Antioch Comment
  UC1363828  Lasthenia microglossa Robert Ornduff 1958-3-22 4807 Contra Costa ca 0.75 mi sw end Mitchell Canyon Road (base of Mitchell Rock, above Mitchell Creek); Mount Diablo, Mitchell Creek, Mitchell Rock Comment
  CAS-BOT-BC366306  Lasthenia minor J. T. Howell 1933-3-29 10895 Contra Costa Nortonville Comment
  JEPS89027  Lathyrus jepsonii var. californicus Volney Rattan 1887-5-22 Contra Costa Alhambra Valley Comment
  CAS-BOT-BC205011  Lathyrus jepsonii var. jepsonii E. E. Stanford 1930-5-24 1515 Contra Costa Marsh Creek Canyon Comment
  UC1795739  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; edge of coastal bluff and blacktop at northwest corner of area. Comment
  JEPS55365  Lathyrus vestitus var. vestitus H. L. Mason 1931-4-4 Contra Costa se of Mt. Diablo; Upper Marsh Creek Comment
  UC1084401  Lathyrus vestitus var. vestitus G. Thomas Robbins 1937-4-17 120 Contra Costa near Pt. Richmond Comment
  UC964777  Lathyrus vestitus var. vestitus Herbert L. Mason 1931-4-5 5829 Contra Costa road between Marsh Creek and Livermore Comment
  UC15372  Lathyrus vestitus var. vestitus W. L. Jepson Contra Costa Fish Ranch Comment
  CDA15250  Lavatera cretica G. F. Hrusa, D. Crowe 1998-5-8 14381 Contra Costa Sacramento Delta; Adjacent to Dow Ecological Reserve on Dow Chemical property at Pittsburg. Comment
  JEPS87986  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
  CAS-BOT-BC323910  Layia chrysanthemoides R. F. Hoover 1967-4-28 10506 Contra Costa Byron Hot Springs Comment
  JEPS13446  Layia chrysanthemoides R. F. Hoover 1939-4-25 4065 Contra Costa Richmond Hills Comment
  UC62893  Layia chrysanthemoides H. M. Hall 1901-3-22 1688 Contra Costa Rodeo Creek Region of San Francisco Bay, Rodeo Creek Comment
  UC650363  Layia chrysanthemoides Ira L. Wiggins 1930-4-17 4572 Contra Costa s Byron Comment
  CAS-BOT-BC323908  Layia chrysanthemoides Brandegee no date on sheet s.n. Contra Costa Antioch 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
  UC89217  Layia gaillardioides K. Brandegee May 1884 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC321745  Layia gaillardioides Dr. A. Kellogg no date on label s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC321763  Layia gaillardioides Joseph Andorfer Ewan 1936-4-15 9444 Contra Costa E. slope Bald Peak, San Pablo Ridge Comment
  UC2042962  Layia gaillardioides Barbara Ertter with D. Gowen, J. Ginochio, M. Park, S. Matson, A. Moore, S. D'Alcamo, J. Greenhouse, K. Kersh and J. Gawthrup 2005-5-8 18569 Contra Costa Ginochio property on west side of Mount Diablo, connector road across serpentine ridge from Olofson Homestead to Government Road. Comment
Read comments
Feb 13 2016
  CAS-BOT-BC321077  Layia glandulosa Alice Eastwood; John Thomas Howell 1936-4-19 2150 Contra Costa Antioch sand hills Comment
  JEPS40029  Layia glandulosa H. L. Mason 1932-3-20 Contra Costa Antioch Comment
  JEPS68959  Layia glandulosa Edward Lee 1935-3-10 1291 Contra Costa e Antioch Comment
  UC468861  Layia glandulosa W. C. Blasdale 1893-5-13 Contra Costa Antioch Comment
  UCD133904  Layia glandulosa Annetta M. Carter 1933-4-23 300 Contra Costa above the San Joaquin River, between Antioch Bridge and Antioch. Comment
  UC697169  Layia hieracioides Mary L. Bowerman 1933-5-3 1969 Contra Costa Due s of summit 731 Comment
  UC1069769  Layia platyglossa C. M. Belshaw 1936-5-8 2064 Contra Costa se slope Mt. Diablo; Mt. Diablo Quad. Comment
  UC30667  Layia platyglossa R. C. Marsh 1900-4-5 Contra Costa Antioch Comment
  UC518017  Layia platyglossa Lewis S. Rose 1933-4-17 33093 Contra Costa Antioch Comment
  CAS-BOT-BC370666  Layia platyglossa H. M. Hall 1901-4-5 1750 Contra Costa Mt. Diablo near summit Comment
  UC2028000  Layia platyglossa Barbara Ertter, Tony Morosco 1998-4-12 16019 Contra Costa Mount Olympia on north side of Mount Diablo, around rocks at summit. Comment
  CDA9564  Lemna gibba D. G. Kelch 2007-6-17 7 .463 Contra Costa Carquinez Strait; Fernandez Ranch, Muir Land Trust. Franklin Canyon. 0 Comment
  SEINET4081593  Lepechinia calycina B. C. Templeton 1962-1 sn Contra Costa Mount Diablo. Comment
  JEPS111001  Lepechinia calycina W. L. Jepson 1921-11-19 9522 Contra Costa Chamise ridge, Mt. Diablo Comment
  CDA43402  Lepidium acutidens Michael Pitcairn & Dean Kelch 2015-3-6 s.n. Contra Costa South end of the Byron Airport. Comment
  UCD77805  Lepidium acutidens Robert E. Preston 1997-3-8 1017 Contra Costa Black Diamond Mines Regional Park, along Stewartsville Trail 137 Comment
  UCD115332  Lepidium appelianum G. Thomas Robbins 1959-9-13 4162 Contra Costa North edge of Pinole. Comment
  JEPS111873  Lepidium chalepense D. G. Kelch 2005-4-2 05 .103 Contra Costa Alhambra Valley EBMUD land. North of intersection of Alhambra Valley Road and Castro Ranch Road 70 Comment
  CAS-BOT-BC88866  Lepidium chalepense Barrett Anderson 1987-4-29 3478 Contra Costa Pinole Creek in Pinole Valley near Catro Ranch Road. Pinole dam site for EBMUD. 125 Comment
  RSA19373  Lepidium dictyotum var. acutidens L. S. Rose 1937-3-26 37012 Contra Costa Byron. 8 Comment
  RSA788058  Lepidium dictyotum var. acutidens L. S. Rose 1949-3-24 49012 Contra Costa 4 mi south of Byren 8 Comment
  RSA8388  Lepidium dictyotum var. acutidens L. S. Rose 1933-3-29 33041 Contra Costa Nortonville. Comment
  JEPS111853  Lepidium latifolium A. G. Murdock 2004-5-28 301 Contra Costa Luzon 60 Comment
  UC1607702  Lepidium latifolium Barbara Ertter 1991-5-12 9810 Contra Costa sw corner El Cerrito (n of park); San Francisco Bay, Point Isabel Regional Shoreline Comment
  CAS-BOT-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
  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
  CAS-BOT-BC89893  Lepidium nitidum Alice Eastwood 1921-4-18 10259 Contra Costa Antioch. Comment
  UC517997  Lepidium nitidum Lewis S. Rose 1933-3-29 33045 Contra Costa Pittsburg Comment
  UC691079  Lepidium nitidum Mary L. Bowerman 1931-2-8 506 Contra Costa West road (= North Rd) Mount Diablo Comment
  CAS-BOT-BC89898  Lepidium nitidum Reed C. Rollins 1946-3-25 3044 Contra Costa Western slope of Mount Diablo. Comment
  JEPS25136  Lepidium strictum G. Thomas Robbins 1959-4-26 4006 Contra Costa about 1 mi ne Giant (and about 0.25 mi n of San Pablo Oil Tank Farm) 7 Comment
  UC1789934  Lepidium strictum Katharine Brandegee May 1907 Contra Costa Antioch Comment
  CDA37901  Leptochloa fascicularis D. G. Kelch, Mike Perlmutter 2011-9-23 11 .756 Contra Costa Entry to Discovery Bay. Comment
  UC2028440  Leptochloa fusca subsp. fascicularis Barbara Ertter with Chris Thayer 1996-10-25 15363 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park Comment
  UCD64057  Leptochloa fusca subsp. uninervia Chandler Jensen 1957-11-7 Contra Costa Vasco road, about 5 mi. south of Brentwood. Comment
  POM300972  Leptosiphon androsaceus Mary L. Bowerman 1933-4-15 1861 Contra Costa Second ridge southeast of Arroyo del Cerro Comment
  UC2027775  Leptosiphon ciliatus Barbara Ertter with Holly Forbes 1997-4-20 15565 Contra Costa North base of Mount Diablo at NE base of Eagle Ridge. Comment
  CAS-BOT-BC324119  Lessingia glandulifera var. glandulifera T. S. Brandegee 1883-1-1 s.n. Contra Costa Antioch Comment
  UCD134065  Lessingia glandulifera var. glandulifera Peter Rubtzoff 1954-9-14 1751 Contra Costa Lower San Joaquin River, E of Antioch. Comment
  UC691184  Leymus X multiflorus Mary L. Bowerman 1938-11-19 3734 Contra Costa Mitchell Creek tributary s Black Point; Mount Diablo 259 Comment
  POM365328  Leymus condensatus A. A. Beetle 1941-6-24 1751 Contra Costa Pt. Richmond on San Francisco Bay Comment
  JEPS99987  Leymus triticoides S. O'Neil 2003-7-27 SEO 44 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA108330  Leymus triticoides Frank W. Gould 1941-5-16 1298 Contra Costa In roadside ditch, 1/2 mile east of Lafayette on C.S. Highway 24. Comment
Read comments
Nov 1 2011
  RSA108362  Leymus triticoides Frank W. Gould 1941-5-6 1286 Contra Costa 2.3 miles from Walnut Creek on Danville road. Comment
  UC53466  Leymus triticoides Jos. Burtt Davy 1900-6-7 6658 Contra Costa near Pacheco Comment
  UC691180  Leymus triticoides Mary L. Bowerman 1933-9-23 2447 Contra Costa Alder Creek Mount Diablo (near spring in gully) Comment
  CAS-BOT-BC272215  Leymus triticoides R. E. Frenkel 1964-7-25 704 Contra Costa In vicinity of PG&E pole on Morgan territory Road, 0.2 mile south of summit 637 Comment
  CDA32488  Leymus triticoides Ball ? 1944-6-9 Contra Costa El Cerrito 0 Comment
  RSA0021082  Leymus triticoides Mary L. Bowerman 1935-6-28 3159 Contra Costa Mount Diablo. Inner Black Hills west of the meridian. 473 Comment
  JEPS100066  Ligustrum ovalifolium G. Smick 2003-5-30 GAS 196 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC691999  Lilium pardalinum Mary L. Bowerman 1935-6-21 3144 Contra Costa e fork Arroyo del Cerro; Mount Diablo 289 Comment
  JEPS25359  Limnanthes douglasii subsp. rosea Rimo Bacigalupi with Paul C. Hutchison and John Weiler 1959-3-19 6971 Contra Costa junction of Holey Road and Byron Road (about 2.9 mi se of Byron) 4 Comment
  JEPS65185  Limnanthes douglasii subsp. rosea L. R. Heckard 1971-4-15 2482 Contra Costa s Byron (at intersection of Holey Road) Comment
  UC971818  Limnanthes douglasii subsp. rosea Charles T. Mason Jr. 1948-3-27 1134 Contra Costa 0.1 mi s Byron Hot Springs road (along Byron-Bethany road) Comment
  CDA33335  Limnobium laevigatum Paul Ryan/Alan Hyde 2010-10-4 PDR# 1596381 Contra Costa Near Rio Vista; tidal waterway, 200 yards from deep water channel 0 Comment
  SBBG117351  Limonium californicum B. Crampton 1950-8-5 632 Contra Costa San Pablo Canal, NW of Richmond Comment
  UC30176  Linanthus androsaceus W. H. Brewer 1862-5-22 1139 Contra Costa foothills e Mount Diablo 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
  UC30155  Linanthus ciliatus W. H. Brewer 1862-5-22 1138 Contra Costa e of Mount Diablo Comment
  UC932049  Linanthus ciliatus Verne Grant and Alva Grant 1948-5-15 8503 Contra Costa on Sommerville to Antioch road; Sommerville Range 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
  JEPS116915  Linanthus pygmaeus subsp. continentalis David Gowen 2009-4-4 981 Contra Costa Hard packed sandy area just south of Las Trampas Ridge Trail and about 1/4 mile west of junction with Del Amigo Trail. Comment
  CDA29106  Linum bienne D. G. Kelch 2006-5-7 06 .148-B Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  SJSU5759  Lithophragma affine M. C. Maloney 1971-4-20 Contra Costa Morgan Territory Rd, 6 mi from Marsh Cr Rd Comment
  UC11876  Lithophragma affine Jos. Burtt Davy 1901-4-21 6919 Contra Costa Wildcat Canyon Comment
  UC402493  Lithophragma affine Chestnut and Drew 1889-4-16 Contra Costa Martinez Comment
  RSA0068477  Lithophragma affine Katie Gallagher, Nick Jensen 2014-4-26 201 Contra Costa Las Trampas Regional Wilderness. 487 Comment
  SEINET5557311  Lithophragma affine H. S. Gentry 1931-1 47 Contra Costa Collected near Buckle Point Mt. Diablo. Comment
  SEINET6032167  Lithophragma affine H. E. Hodge 1956-4-7 23 Contra Costa 2 miles north of Orinda 61 Comment
  POM274347  Lithophragma affine subsp. affine Lyman Benson 1931-3-18 2663 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 Comment
  RSA8363  Lithophragma affine subsp. affine L. S. Rose 1933-4-17 33099 Contra Costa Walnut Creek. 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
  CAS-BOT-BC342120  Logfia filaginoides John Thomas Howell 1940-4-21 15406 Contra Costa Pine Canyon, Mt. Diablo Comment
  UCD38198  Logfia gallica Beecher Crampton 1950-6-20 595 Contra Costa 1 mile north of Richmond. Triangle Court. Comment
  UC697122  Lolium multiflorum Mary L. Bowerman 1938-5-25 3630 Contra Costa by North Road, Arroyo del Cerro Mount Diablo (Mount Diablo); , North Road 109 Comment
  UC69727  Lolium multiflorum Mary L. Bowerman 1933-5-25 2199 Contra Costa Mount Diablo; Mount Diablo; Mount Diablo, Alamo Canyon; Alamo Canyon; Mount Diablo, above Wilson's barn Comment
  UCR129697  Lolium perenne Terry J. O'Brien 1999-1 s.n. Contra Costa San Francisco Bay Area, eastern Richmond along boundary with El Cerrito, Mira Vista Park, adjacent to Mira Vista School 91 Comment
  CAS-BOT-BC269051  Lolium perenne Mary L. Bowerman 1935-5-3 2967 Contra Costa Mount Diablo. Sloan Road 487 Comment
  SEINET10870161  Lomatium caruifolium John T. Middleton 1936-4-18 Middleton 145 Contra Costa 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
  UCD150873  Lomatium caruifolium var. caruifolium P. B. Kennedy 1914-3-15 4625 Contra Costa Sunset Cemetery. Comment
  CDA38380  Lomatium dasycarpum P. Arnaud 1959-4-19 2239 Contra Costa Mt. Diablo State Park, Juniper Campground. 0 Comment
  JEPS17116  Lomatium macrocarpum M. K. Curran May 1885 Contra Costa Antioch Comment
  UC691771  Lomatium macrocarpum Mary L. Bowerman 1935-5-1 2945 Contra Costa w. rd. 4.4 mi. from entrance Mt. Diablo 381 Comment
  UC1819056  Lomatium macrocarpum Barbara Ertter, Susan D'Alcamo 1994-4-24 12460 Contra Costa Mount Diablo east Walnut Creek, Deer Flat road between Juniper Campground and Deer Flat 762 Comment
  POM132672  Lomatium nudicaule A. D. E. Elmer 1903-05 4322 Contra Costa Mount Diablo Comment
  JEPS13006  Lomatium utriculatum Rimo Bacigalupi with G. T. Robbins and Keith Harrison 1955-5-6 5063 Contra Costa in hills opposite;Hilltop W of Arlington Avenue, opposite Mira Vista Country Club El Cerrito 198 Comment
  UC2062645  Lomatium utriculatum Barbara Ertter with David Gowen, Mike Park 2004-4-13 18358 Contra Costa Black Diamond Mines Regional Park south of Pittsburg, upper part of N-facing slope below Black Diamond Trail, opposite Rose Hill Cemetery. Comment
  CAS-BOT-BC240417  Lonicera hispidula John Thomas Howell 1925-10-11 1489 Contra Costa Moraga Ridge, Oakland Hills Comment
  JEPS12841  Lonicera hispidula var. vacillans W. L. Jepson May 23 1891-May 24 1891 Contra Costa Mt. Diablo Comment
  RSA455187  Lonicera hispidula var. vacillans Thekla Mohr 1917-07 s.n. Contra Costa Mount Diablo Comment
  UC691480  Lonicera hispidula var. vacillans Mary L. Bowerman 1930-6-18 346 Contra Costa Dan Cook Canyon Mount Diablo Comment
  UCSB24470  Lonicera interrupta McMinn, Howard 1922-6-2 Contra Costa NE slope of Mt. Diablo Comment
  UC1005863  Lonicera korolkowii N. Floy Bracelin 1944-5-7 2688 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC691484  Lonicera subspicata var. denudata Mary L. Bowerman 1935-5-25 3074 Contra Costa Rhine Canyon Mount Diablo 944 Comment
  SEINET10832893  Lotus Frenkel 1964-3-18 FRENKEL 400 A Contra Costa On giant road, .4 mi n of atsf rr crossing, richmond. 15 Comment
  UC692569  Lotus crassifolius var. crassifolius Mary L. Bowerman 1931-5-16 862 Contra Costa Meridian Peak summit Mount Diablo Comment
  UC775175  Lotus denticulatus Herbert L. Mason 1945-5-31 Contra Costa nw of St. Mary's College; Cashion Canyon Comment
  UC1745430  Lotus humistratus Annetta M. Carter, Leo Bowerman 1935-6-1 878 Contra Costa Mt. Diablo. S-facing slope on W side of main peak. 975 Comment
  UC692530  Lotus humistratus Mary L. Bowerman 1933-5-2 1940 Contra Costa below Pioneer Camp; Mount Diablo 762 Comment
  JEPS48906  Lotus junceus W. L. Jepson 1945-3-11 27554 Contra Costa Moraga Ridge Comment
  UC69633  Lotus junceus var. biolettii Jos. Burtt Davy 1895-1 Contra Costa Moraga Pass Comment
  UC15642  Lotus micranthus W. H. Brewer 1862-5-26 1173 Contra Costa near Monte Diablo Comment
Read comments
May 4 2008
  JEPS55792  Lotus purshianus var. purshianus W. L. Jepson 1919-6-8 8333 Contra Costa Mt. Diablo 365 Comment
  UC1129013  Lotus purshianus var. purshianus C. M. Belshaw 1936-5-13 2123 Contra Costa n of Horse Valley; Mt. Diablo Quad. 121 Comment
  UC692268  Lotus purshianus var. purshianus Mary L. Bowerman 1938-6-14 3676 Contra Costa 1 mi from North Gate (North Road); Mount Diablo 121 Comment
  UC692270  Lotus scoparius Mary L. Bowerman 1932-9-24 1589 Contra Costa ridge running w from Twin Peaks; Mount Diablo 335 Comment
  UC1555365  Lotus wrangelianus Jerry Powell 1988-4-8 1531 Contra Costa Point Molate, in w Richmond Richmond Comment
  UC692323  Lotus wrangelianus Mary L. Bowerman 1932-4-9 1320 Contra Costa on large spur which heads into Sycamore Canyon; Mount Diablo, Inner Black Hills Comment
  UC1223414  Lotus wrangelianus Joseph P. Tracy 1933-5-31 12435 Contra Costa back of El Cerrito 152 Comment
  CAS-BOT-BC478118  Ludwigia Walter Knight 1978-10-11 3325 Contra Costa Browns Island, Point Emmet Comment
  UCD36021  Lupinus Beecher Crampton 1949-5-29 466 Contra Costa 1 mile north of Richmond, patch along Southern Pacific Railroad. 15 Comment
  CHSC67947  Lupinus albifrons James D. Jokerst 1989-3-31 3077 Contra Costa Rocky hillside E of creek in Brushy Creek Canyon. Comment
  LA205021  Lupinus albifrons J. A. Ewan; 1934-3-10 8645 Contra Costa Wildcat Canyon, 2 mi below Orinda Rd bridge, Comment
  JEPS112355  Lupinus albifrons var. albifrons Dean G. Kelch and Andrew G. Murdock 2004-3-12 04 .019 Contra Costa Pinole Valley, County: Contra Costa; Hillside and canyon above Wright Road. Off of Pinole Valley Road. Contra Coasta County, CA. Comment
  UC15780  Lupinus albifrons var. albifrons F. P. McLean March 1875 Contra Costa Mt. Diablo Comment
  UC864974  Lupinus albifrons var. albifrons Lewis S. Rose 1935-5-16 35162 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC201372  Lupinus albifrons var. albifrons Paul F. Covel 1938-6-26 s.n. Contra Costa Las Trampas Canyon - behind St. Mary's Comment
  JEPS25126  Lupinus arboreus G. Thomas Robbins 1959-4-18 3995 Contra Costa near and n Pt. Richmond (above Western Drive, western slopes of the Potrero Hills, Richmond); Richmond, near and n of Pt. Richmond 7 Comment
  UC2028034  Lupinus bicolor Barbara Ertter 1998-4-4 15944 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, SE of Indian Valley School. Comment
  SEINET10970226  Lupinus bicolor subsp. tridentatus Charles Piper Smith 1922-4-15 Smith 3492 Contra Costa Antioch - Southern Pacific Railroad Depot - 0.5 mi W. Comment
  CAS-BOT-BC187857  Lupinus chamissonis John Thomas Howell 1926-12-27 2272 Contra Costa 1.5 miles S of Oakley Comment
  UC692523  Lupinus formosus Mary L. Bowerman 1931-10-5 1055 Contra Costa Marsh Creek at Curry Canyon Mount Diablo; , Marsh Creek at Curry Canyon 231 Comment
  UC692677  Lupinus formosus Mary L. Bowerman 1931-10-5 1054 Contra Costa Marsh Creek at Curry Canyon; Mount Diablo, Marsh Creek at Curry Canyon 231 Comment
  UC692522  Lupinus formosus Mary L. Bowerman 1936-9-9 3538 Contra Costa Sycamore Canyon Mount Diablo (small flat valley e of Forces' house); , Sycamore Canyon 274 Comment
  UCR274616  Lupinus latifolius Daisie Huang 2006-7-18 60718- 05 Contra Costa Pinehurst Road above Moraga Road 156 Comment
  UC201015  Lupinus microcarpus var. densiflorus Katharine Brandegee 1918-6-16 Contra Costa near Virgorit Powder Works; near Vigorit Powder Works Comment
  UC201016  Lupinus microcarpus var. densiflorus Katharine Brandegee 1918-6-16 Contra Costa near Virgorit Powder Works; near Vigorit Powder Works Comment
  SD103749  Lupinus microcarpus var. densiflorus Walter Knight, Irja Knight 1979-6-8 3397 Contra Costa San Pablo Dam Road between Orinda & El Sobrante Comment
  JEPS111540  Lupinus microcarpus var. microcarpus Dean G. Kelch and Andrew G. Murdock 2005-5-6 05 .224 Contra Costa Franklin Canyon; County: Contra Costa; East of Christie Road. South of Route 4. Franklin Canyon, Contra Costa, CA. Comment
  SJSU10780  Lupinus microcarpus var. microcarpus D. C. Bettencourt 1959-4-18 Contra Costa Mt Diablo Foothills 304 Comment
  UC1129577  Lupinus microcarpus var. microcarpus C. M. Belshaw 1936-5-11 2098 Contra Costa 5.25 mi e Danville; Mt. Diablo Quad. 289 Comment
  UC1300900  Lupinus microcarpus var. microcarpus Helen K. Sharsmith 1963-4-7 5287 Contra Costa e side of Kirker Pass road w Antioch; San Francisco Bay Region, w of Antioch 152 Comment
  UC692572  Lupinus microcarpus var. microcarpus Mary L. Bowerman 1931-4-4 657 Contra Costa North Road 4.5 mi from North Gate Mount Diablo (bank above road); Mount Diablo Comment
  UC1301168  Lupinus nanus Helen K. Sharsmith 1962-4-18 4960 Contra Costa near Canyon; San Francisco Bay Region 152 Comment
  UC2028033  Lupinus nanus Barbara Ertter 1998-4-4 15944 a Contra Costa Shell Ridge Open Space northwest of Mount Diablo, SE of Indian Valley School. Comment
  UC2028120  Lupinus nanus Barbara Ertter with Richard K. Brummitt 1998-5-6 16089 Contra Costa Lower Donner Canyon Road on north base of Mount Diablo, ca 1/2 miles south of Donner cabin site. Comment
  CHSC21642  Lupinus succulentus Willis Ball 1975-3-2 464 Contra Costa Contra Loma Regional Park. In area #4. At edge of beach on e side of lake ca. 50 yds s of dam. 33 Comment
  JEPS100068  Lupinus succulentus G. Smick 2003-5-1 GAS 158 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2987  Luzula comosa W. H. Brewer 1862-5-23 1148 Contra Costa se Monte Diablo; se of Monte Diablo Comment
  HSC14134  Luzula comosa Greg Bos 1963-3-9 34 Contra Costa Albany Hill 12 Comment
  UC2028039  Luzula comosa Barbara Ertter 1998-3-7 15930 Contra Costa Dan Cook Canyon on southwest side of Mount Diablo. Comment
  UC2062431  Luzula macrantha Barbara Ertter with David Gowen 2013-4-9 21309 Contra Costa Mount Diablo State Park southeast of Walnut Creek, Sulfur Spring/Devils Slide Trail southeast of Curry Point. Comment
  OBI21194  Luzula macrantha G. Thomas Robbins 1959-4-18 3987 Contra Costa Partial shade of Baccharis pilularis var. consanguinea at edge of Juncus effusus meadow overlooking San Pablo Bay, about 1/2 mile east of Pt. San Pablo, Richmond 8 Comment
  CDA20732  Lycium chinense J. Deviney 2006-7-5 PDR 1374005 Contra Costa Viano Vineyards, 150 Morello Ave., Martinez. Comment
  CDA33071  Lycopus americanus D. G. Kelch 2010-10-5 10 .425 Contra Costa The Delta.; Antioch shoreline. West of Fulton shipyard. Comment
  JEPS116748  Lythrum californicum David Gowen 2006-8-9 660 Contra Costa Mt. Diablo State Park at Lower Moses Rock Spring. Comment
  RSA0014823  Lythrum californicum David Gowen 2006-8-9 660 Contra Costa Mount Diablo State Park at Lower Moses Rock Spring. Comment
  JEPS45984  Lythrum hyssopifolia W. L. Jepson 1940-6-5 19933 Contra Costa Richmond Comment
  UC692686  Lythrum hyssopifolia Mary L. Bowerman 1933-8-2 2391 Contra Costa Mount Diablo, Sheep Camp Spring Sheep Camp Spring; Mount Diablo, Sheep Camp Spring Comment
  JEPS100179  Madia elegans A. Langston 2003-7-9 AL 62 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC697172  Madia elegans Mary L. Bowerman 1933-5-17 2106 Contra Costa Curry Canyon brance s of Olafsons' barn Mount Diablo 289 Comment
  UC2028023  Madia elegans Barbara Ertter 1997-9-14 15811 Contra Costa Southwest side of Mount Diablo, Secret Trail at head of Pine Canyon. Comment
  UC2029015  Madia elegans Barbara Ertter 1999-8-21 16791 Contra Costa Deer Flat Creek crossing on road between Deer Flat and Murchio Gap, NW side of Mount Diablo. Comment
  JEPS111753  Madia gracilis D. G. Kelch 2005-4-24 05 .163 Contra Costa Franklin Canyon 60 Comment
  CAS-BOT-BC342986  Madia gracilis Mary L. Bowerman 1932-4-27 1364 Contra Costa Mount Diablo. Oyster Ridge, south face: Grassy west-facing slope of ridge west of Riggs Canyon Comment
  UC2029060  Madia gracilis 'Barbara Ertter with Save Mount Diablo outing 2003-5-8 18167 Contra Costa Mangini property on knoll west of Mount Zion, NW corner of Mount Diablo. Comment
  CAS-BOT-BC324487  Madia radiata K. Brandegee 1908-4-9 50 Contra Costa Near Antioch Comment
  SEINET3148105  Madia radiata K. Brandegee 1908-4-9 50 Contra Costa Near Antioch Comment
  SEINET11601587 Image available Madia radiata K. Brandegee 1908-4-9 50 Contra Costa Near Antioch Comment
  UC2028109  Malacothamnus fasciculatus Barbara Ertter with Christopher Baysdorfer 1998-5-10 16114 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, on north end of Ohlone Trail. Comment
  UC2028245  Malacothamnus fasciculatus Barbara Ertter, Tony Morosco 1998-9-18 16417 Contra Costa West edge Lime Ridge Open Space northwest of Mount Diablo. Comment
  UC961415  Malacothamnus fremontii John Thomas Howell and T. H. Kearney 1950-7-5 26635 Contra Costa Nortonville Comment
  JEPS95241  Malacothamnus hallii Stephen W. Edwards 1988-9-5 Contra Costa Lime Ridge, Walnut Creek Open Space above country club Comment
  CAS-BOT-BC204094  Malacothamnus hallii John Thomas Howell; T. H. Kearney 1950-7-5 26634 Contra Costa On North Road, Mt. Diablo 259 Comment
  CAS-BOT-BC204097  Malacothamnus hallii John Thomas Howell; T. H. Kearney 1950-7-5 26634 Contra Costa On North Road, Mt. Diablo 259 Comment
  SEINET5047666  Malacothamnus hallii Unknown 1916-5-30 301 Contra Costa Mt. Diablo, Contra Costa County, on the westerly side N of Pine Canon, Comment
  UC133354  Malacothrix floccifera C. F. Baker 1903-4-28 2948 Contra Costa Marsh Creek Mount Diablo Comment
  UCD150879  Malva nicaeensis James A. Neilson Jr. 1972-11-2 3619 Contra Costa Walnut Creek drainage. Elevation estimated in Google Earth by label maker. 1 Comment
  UC2062656  Malva pseudolavatera Barbara Ertter with Delia Taylor 2003-6-22 18230 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, corporate yard for park headquarters on E side Somerville Road. Comment
  CDA42228  Marah fabacea D. G. Kelch 2003-3-21 3 .04 Contra Costa Carquinez Strait Region; Martinez; West: Ozol Rock and Scenic Drive. Comment
  UC692642  Marah fabacea Mary L. Bowerman 1931-4-4 634 Contra Costa 2 mi by road North Gate; Mount Diablo 228 Comment
  RSA724228  Marah fabacea R. R. Halse 1988-2-20 3540 Contra Costa Along Marsh Creek Road, in the Dark Canyon area, 4 miles W of its junction with Deer Valley Road. 156 Comment
  UC1949100  Marah fabacea Barbara Ertter 1991-6-1 10076 Contra Costa Las Trampas Regional Wilderness in hills W of Danville, steep E-facing slope at N end Rocky Ridge Trail Comment
  CHSC28455  Marah oregana Robert A. Schlising 1964-6-6 2718 Contra Costa Berkeley-Oakland Hills. Comment
  CHSC46895  Marah oregana R. A. Schlising 1964-6-5 2715 Contra Costa Oakland Hills, along Grizzly Peak Blvd. Comment
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Jun 3 2014
  CHSC46897  Marah oregana R. A. Schlising 1964-4-11 2699 Contra Costa Berkeley/Oakland Hills. Comment
  JEPS63279  Marrubium vulgare L. Tinsley Sept. 1925 38 Contra Costa Mt. Diablo Comment
  UC1586020  Marsilea vestita subsp. vestita Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8131 Contra Costa ca. 15 air mi sw Stockton (w and adjacent to Clifton Court Forebay); se Contra Costa Co. Comment
  CHSC23343  Matricaria discoidea Willis Ball 1975-3-26 507 Contra Costa Contra Loma Regional Park. In area #1. All around the restroom facilities at s end of lake. 30 Comment
  UC89519  Matricaria discoidea T. S. Brandegee May 1890 Contra Costa Antioch Comment
  CAS-BOT-BC348046  Matricaria discoidea R. E. Frenkel 1963-12-4 305 Contra Costa In walnut orchard on Marsh Creek Road, west of Sellers Road Comment
  CAS-BOT-BC348258  Matricaria occidentalis R. E. Frenkel 1963-5-15 202 Contra Costa East of Bixler Road between Marsh Creek Road and Point of Timber Road, about 200 yards north of pink house on west side of road, about 10-20 m. east of fence Comment
  JEPS100115  Medicago arabica G. Smick 2003-5-8 GAS 180 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1606303  Medicago arabica Barbara Ertter, Chris Thayer 1993-5-7 11699 Contra Costa on Wildcat Canyon Rd. 1/2 mi e Inspiration Point (e of Tilden Park); East Bay Municipal Utilities District land, Hopkins Spring 304 Comment
  CHSC116602  Medicago polymorpha var. polymorpha Lowell Ahart; Josephine Guardino 2016-4-19 20762 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
  JEPS99555  Melica californica Mary Bowerman 1991-5-21 Contra Costa Mount Diablo, Jim White Trail [Deer Flat Rd.]. South side of Juniper-Moses Rock Trail near Deer Flat junction. Comment
  JEPS99985  Melica californica S. O'Neil 2003-5-8 SEO 31 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1055813  Melica californica Frank W. Gould 1941-4-20 1282 Contra Costa near Richmond Comment
  UC188878  Melica californica Harley P. Chandler 1901-4-5 965 Contra Costa between Pine Canyon and Mt. Diablo Summit; Mt. Diablo Region Comment
  UC606736  Melica californica Edward Lee 1936-4-19 1957 Contra Costa ne shore Red Rock; San Francisco Bay Comment
  UC692465  Melica californica Mary L. Bowerman 1935-5-1 2941 Contra Costa 4.4 mi from Mount Diablo West Road (North Rd) entrance (North Gate); Mount Diablo 396 Comment
  UC692466  Melica californica Mary L. Bowerman 1933-5-9 2037 Contra Costa hillside e Pioneer Camp; Mount Diablo Comment
  UC771209  Melica californica W. S. Boyle 1942-4-10 1062 Contra Costa Ferry Point; overlooking San Francisco Bay Comment
  UCD87144  Melica californica P. B. Kennedy 1916-5-1 s.n. Contra Costa Pinehurst. Comment
  CAS-BOT-BC271217  Melica californica Niall McCarten; V. I. Dains 1986-6-1 03251142 Contra Costa W. of Camino Diablo and Kellogg Creek Comment
  CAS-BOT-BC281435  Melica imperfecta Beecher Crampton 1956-5-14 3405 Contra Costa S boundary of Mt Diablo State Park Comment
  UC1153843  Melica imperfecta Beecher Crampton 1956-5-14 3405 Contra Costa s boundary Mt. Diablo State Park Comment
  CDA32513  Melica imperfecta A. A. Beetle 1941-3-28 Contra Costa Near Orinda 0 Comment
  POM257058  Melica imperfecta var. refracta Virginia Long 1933-6-14 221 a Contra Costa Mt. Diablo. On slope SE-E along first west fork from Curry Creek Trail. Comment
  RSA295077  Melica torreyana Robert A. Norris, John L. Inase 1981-4-25 4143 Contra Costa Alongside Abrigo Valley trail, west part of Briones Regional Park (ca. 3 miles NNW Lafayette). 220 Comment
  UC606735  Melica torreyana Edward Lee 1936-4-19 1956 Contra Costa ne shore Red Rock; San Francisco Bay Comment
  UC691166  Melica torreyana Mary L. Bowerman 1933-6-3 2235 Contra Costa summit Meridian Pk (Ranson Pt. trail); Mt. Diablo Comment
  UC691224  Melica torreyana Mary L. Bowerman 1933-4-26 1935 a Contra Costa Perkins Canyon branch between the main e ridge of North Peak and ridge to its south (canyon se from North Peak) Mt. Diablo 487 Comment
  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
  CDA1109  Melissa officinalis D. G. Kelch 2005-7-14 5 .462 Contra Costa Carquinez Strait Region; Arroyo del Hambre; Franklin Creek near Glen Frazier. Comment
  OBI13670  Melissa officinalis G. Thomas Robbins 1959-8-1 4115 Contra Costa Las Trampas Crk, about 1.5 mi SE of St. Marys College 183 Comment
  UCD150883  Mentha X piperita James A. Neilson Jr. 1972-11-9 s.n. Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 1 Comment
  RSA691929  Mentha spicata Barbara Ertter 1991-8-18 10718 Contra Costa Browns Island N of Pittsburg near confluence of Sacramento and San Joaquin rivers, west-most point opposite Pittsburg marina Comment
  UC108375  Mentzelia affinis Michener and Bioletti 1892-4-10 Contra Costa Byron Comment
  UC1481551  Mentzelia lindleyi Neil Havlik 1980-5-10 912 Contra Costa 3 mi E Crockett (Carquinez Scenic Drive) Comment
  UC692627  Mentzelia micrantha Mary L. Bowerman 1934-4-21 2534 Contra Costa Muir Area Mount Diablo Comment
  UC692628  Mentzelia micrantha Mary L. Bowerman 1933-5-25 2186 Contra Costa west end of south face (Gully); Mount Diablo, Oyster Ridge 502 Comment
  CDA31454  Micropus californicus D. G. Kelch 2006-5-2 6 .21 Contra Costa Carquinez Strait; Fernandez Ranch; W. Christie Rd. Comment
  UC1795729  Micropus californicus var. californicus Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14223 Contra Costa Mt. Diablo southeast of Walnut Creek, north-facing slope north of Curry Point, grassy semishade at edge of oak woodland. 518 Comment
  UC88386  Micropus californicus var. californicus T. S. Brandegee May 1886 Contra Costa Antioch 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
  RSA720807  Micropus californicus var. californicus Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14223 Contra Costa Mt. Diablo southeast of Walnut Creek, north-facing slope north of Curry Point 518 Comment
  CAS-BOT-BC348669  Microseris acuminata K. L. Chambers 1953-4-25 450 Contra Costa Balfour Rd., ca. 4 mi. w. of Brentwood and 1.8 mi. e. of its junction with Antioch-Briones Valley Road. (Deer Valley Road.) Comment
  CDA29517  Microseris douglasii D. G. Kelch, Troy MacGregor 2009-5-1 9 .285 Contra Costa Carquinez Strait; Fernandez Ranch in valley bottom along Christie Rd. Comment
  UCD77859  Microseris douglasii Robert E. Preston 1997-3-8 1018 Contra Costa Black Diamond Mines Regional Park, along Stewartsville Trail. 91 Comment
  UC2028327  Microseris douglasii Barbara Ertter with Richard K. Brummitt 1998-5-13 16138 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, head of SE branch of Loughler Loop Trail. Comment
  RSA72855B  Microseris douglasii subsp. douglasii A. Kellogg, W. G. W. Harford 1869-4-8 579 Contra Costa Antiock [Antioch] Comment
  UC691465  Microseris douglasii subsp. douglasii Mary L. Bowerman 1931-4-18 729 Contra Costa in basin of ne fork Sycamore Canyon; Mount Diablo Comment
  POM301001  Microseris heterocarpa Mary L. Bowerman 1935-4-19 2849 Contra Costa Mount Diablo: West road 3.5 miles from entrance Comment
  CAS-BOT-BC322765  Microseris sylvatica M. K. Curran 1884-5-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC322770  Microseris sylvatica T. S. Brandegee 1884-5-1 s.n. Contra Costa Antioch Comment
  UC2070514  Microseris sylvatica Barbara Ertter with David Gowen and Michael Park 2004-4-13 18357 Contra Costa Black Diamond Mines Regional Park south of Pittsburg, upper part of N-facing slope below Black Diamond Trail, opposite Rose Hill cemetery. Comment
  RSA15451  Mimulus aurantiacus var. aurantiacus J. T. Howell 1936-4-19 s.n. Contra Costa Nortonville Comment
  UC691496  Mimulus aurantiacus var. aurantiacus Mary L. Bowerman 1930-6-5 253 Contra Costa 5.8 mi from entrance West road (=North Road); Mount Diablo 457 Comment
  UC691614  Mimulus aurantiacus var. aurantiacus Mary L. Bowerman 1931-3-29 622 Contra Costa East Cave Point Ridge Mount Diablo Comment
  RSA550837  Mimulus aurantiacus var. aurantiacus David M. Thompson 1992-6-3 1107 Contra Costa SW base of Mt. Diablo, E of Danville. 2.6 mi NE of Blackhawk and diablo rads along Mt. Diablo Scenic Boulvard and South Gate Road 378 Comment
  JEPS10570  Mimulus douglasii Mary L. Bowerman 1935-4-26 2906 Contra Costa w Indian Ceremonial Spring; Mount Diablo 1005 Comment
  UC691569  Mimulus douglasii Mary L. Bowerman 1934-3-18 2483 Contra Costa w Russelman Park (on edge of Donner Canyon); Mount Diablo 365 Comment
  UC1613940  Mimulus grandis Charles M. Belshaw 1935-6-24 1019 Contra Costa Sobrante Hills Comment
  SEINET4678015  Mimulus guttatus K. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4954 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough, SE portion of Bethel Slough.; 0 610 Comment
  UC2028091  Mimulus guttatus Barbara Ertter, Tony Morosco 1998-4-12 16001 Contra Costa Base of Mount Olympia on north side of Mount Diablo, NE of Olympia Trail. Comment
  UC26995  Mimulus nasutus J. Burtt Davy 1893-5-13 214 Contra Costa Claremont Canyon to Fish Ranch fide fieldbook Comment
  UC692298  Minuartia californica Mary L. Bowerman 1935-3-16 2730 Contra Costa Shell Ridge Mount Diablo (just e of the hwy, (opposite Heather Farm)) Comment
  SJSU2617  Minuartia douglasii W. E. Ferguson 1942-4-25 Contra Costa E base of Mt Diablo 304 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
  CAS-BOT-BC221679  Monardella douglasii John Thomas Howell 1942-7-19 17049 Contra Costa NE. of Deer Flat, Mt. Diablo Comment
  RSA83391  Monardella douglasii J. T. Howell 1942-7-19 17049 Contra Costa Northeast of Deer Flat, Mount Diablo Comment
  UC2027752  Monardella douglasii subsp. douglasii Barbara Ertter with Mary Bowerman 1996-11-1 15408 Contra Costa North base of Mount Diablo, north end of Hetherington Trail along Donner Creek. Comment
  UC691415  Monardella villosa subsp. villosa Mary L. Bowerman 1930-6-18 339 Contra Costa Dan Cook canyon Mount Diablo Comment
  UC691416  Monardella villosa subsp. villosa Mary L. Bowerman 1938-6-21 3689 Contra Costa summit Mount Diablo Comment
  CAS-BOT-BC327803  Monolopia gracilens Mary L. Bowerman 1933-5-9 2057 Contra Costa Mt. Diablo, Muir Area, SW slope E of the rocks. Comment
  CAS-BOT-BC327804  Monolopia gracilens Mary L. Bowerman 1935-5-8 2973 Contra Costa Mt. Diablo, Muir Area, 1036 Comment
  UC407362  Monolopia major Ira L. Wiggins 1930-4-17 4584 Contra Costa 0.25 mi s Byron Comment
  UC697148  Monolopia major Mary L. Bowerman 1933-5-25 2196 Contra Costa e of saddle Osyter Ridge; Mount Diablo 396 Comment
  POM181484  Monolopia major I. L. Wiggins 1930-4-17 4584 Contra Costa 1/4 mi. S. of Byron. Comment
  SEINET11810308  Monolopia major L. S. Rose 1932-1 3280 Contra Costa Byron Comment
  CAS-BOT-BC445038  Montia linearis John Thomas Howell 1933-5-14 11226 Contra Costa St. Mary's College Comment
  UC1198226  Muilla maritima J. P. Tracy 1900-3-24 607 Contra Costa near Point Richmond; Region about San Francisco Bay 3 Comment
  UC2028284  Myoporum laetum Barbara Ertter 1998-6-20 16240 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, along path just outside Wiget Lane entrance. Comment
  CAS-BOT-BC83295  Myosurus minimus Peter H. Raven; D. Stone; H. L. Mason; R. Ornduff; et al. 1957-4-4 10584 Contra Costa 3.0 miles south of Byron. Comment
  UC1101327  Myosurus minimus Herbert L. Mason 1952-4-14 14262 a Contra Costa 3.5 mi s of Byron Comment
  UC634927  Myosurus minimus H. L. Mason 1932-3-20 6854 Contra Costa Briones Road Comment
  UCD96579  Myosurus minimus Roman Gankin 1958-3-8 s.n. Contra Costa ca. 3 miles south of Byron. Comment
  UC1101331  Myosurus sessilis Herbert L. Mason 1952-4-26 14269 Contra Costa 3.5 mi s of Byron Comment
  UC1777714  Myriophyllum sibiricum M. R. Bell 1950-10-9 Contra Costa near Concord (from stock pond on farm of E. J. Mangini) Comment
  CDA19208  Myriophyllum spicatum Mangini, Whitlock 2001-4-3 PDR 041588 Contra Costa at SW corner of Contra Loma Park, East Bay Regional park, Antioch. 0 Comment
  UC2031468  Myriophyllum verticillatum Barbara Ertter with Brad Olson 1991-9-28 10837 Contra Costa San Pablo Reservoir between Orinda and El Sobrante Comment
  UC2028551  Myriopteris covillei Barbara Ertter 1997-8-19 15774 Contra Costa Mount Diablo, SE side of Peak on Mary Bowerman/Fire Interpretive Trail Comment
  OBI72036  Najas guadalupensis Barbara Ertter, Brad Olson 1991-9-28 10838 Contra Costa San Pablo Reservoir between Orinda and El Sobrante 91 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
  UC2028567  Narcissus pseudonarcissus Barbara Ertter 1997-2-11 15451 Contra Costa North side of Mount Diablo, Donner Cabin site on Donner Canyon Road. Comment
  JEPS102897  Narcissus tazetta Barbara Ertter 1998-1-25 15910 Contra Costa Back Canyon Road at crossroad S of Donner Canyon trailhead Mount Diablo Comment
  CAS-BOT-BC259902  Nassella lepida Mary L. Bowerman 1938-6-30 3701 Contra Costa Mount Diablo. Blue Oak Flat 822 Comment
  CDA29014  Nassella lepida D. G. Kelch 2006-5-7 6 .163 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  UC697123  Nassella lepida Mary L. Bowerman 1935-5-1 2936 Contra Costa North Road 2 mi from North Gate (se exp.); Mount Diablo 182 Comment
  UCD87824  Nassella lepida Beecher Crampton 1956-5-14 3422 Contra Costa 2 miles west of Martinez, on road to Crockett. Comment
  JEPS116788  Nassella lepida David Gowen 2006-6-14 612 Contra Costa Morgan Territory Regional Park; At the NW end of Eagle Trail. Comment
  CAS-BOT-BC260131  Nassella pulchra Mary L. Bowerman 1933-5-18 2125 Contra Costa Mount Diablo. Blackberry Spring Comment
  UC60254  Nassella pulchra J. Burtt Davy Apr 1897 Contra Costa Point Isabel Comment
  UC691268  Nassella pulchra Mary L. Bowerman 1935-4-17 2830 Contra Costa West road (= North Rd) 2 mi from entrance (se exposure); Mount Diablo 237 Comment
  SEINET11268203  Nassella pulchra Barbara Ertter, Dan Norris 1998-6-18 16211 Contra Costa South Gate Road on south flank of Mount Diablo, ca 1 mile in from park boundary.; 0 Comment
  UC2042985  Navarretia atractyloides Barbara Ertter with Tony Morosco 1998-9-18 16437 Contra Costa North side Lime Ridge Open Space northwest of Mount Diablo. Comment
  UC2042987  Navarretia intertexta subsp. intertexta Barbara Ertter with Alan Prather 2003-6-7 18206 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, shortcut between Coyote Trail and Stone Corral Trail. Comment
  JEPS70391  Navarretia mellita Mary L. Bowerman 1931-6-2 910 Contra Costa Gregory Ranch Road Mount Diablo Comment
  UC52780  Navarretia mellita J. Burtt Davy 1895-1 Contra Costa Moraga Pass Oakland Hills, Moraga Pass Comment
  UC126029  Navarretia nigelliformis M. K. Curran 1888-5 Contra Costa Antioch Comment
  CAS-BOT-BC233595  Navarretia pubescens Brandegee No date on label s.n. Contra Costa Antioch Comment
  UC1124139  Navarretia pubescens C. M. Belshaw 1936-5-13 2115 Contra Costa 3.7 mi ene Tassajero; Mt. Diablo Quad. 670 Comment
  UC30208  Navarretia pubescens W. H. Brewer 1862-5-15 1096 Contra Costa Kirker's Pass Comment
  UC691643  Navarretia pubescens Mary L. Bowerman 1930-6-5 259 Contra Costa 5.8 mi from West Road (= North Rd) entrance; Mount Diablo 457 Comment
  JEPS105727  Navarretia pubescens David Gowen 2004-5-27 100 Contra Costa Ca. 1/2 mile east of the southeast corner of Morgan Territory Regional Preserve in Los Vaqueros Watershed. Comment
  UC1607552  Navarretia squarrosa Barbara Ertter with Laura Fujii 1990-7-21 9398 Contra Costa w of Pleasant Hill (near junction of Briones Crest and Spengler trails); Briones Regional Park, Briones Hills 396 Comment
  UCD35159  Navarretia squarrosa Beecher Crampton 1950-9-22 621 Contra Costa Vacant lot 1 mile north of Richmond. Comment
  CDA29222  Nemophila heterophylla D. G. Kelch 2006-5-7 6 .152 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  JEPS3220  Nemophila heterophylla W. L. Jepson 1923-4-22 9868 Contra Costa Mt. Diablo Vicinity of San Francisco Bay, Mt. Diablo Comment
  SBBG29926  Nemophila heterophylla J. T. Howell 1933-5-14 12218 Contra Costa E of St. Mary's College Comment
  UC24164  Nemophila heterophylla J. Burtt Davy 1895-4-7 907 Contra Costa Antioch Comment
  UC691705  Nemophila heterophylla Mary L. Bowerman 1933-4-9 1838 Contra Costa w fork , Donner Canyon, w fork (Donner Canyon; Mount Diablo) 243 Comment
  UC691706  Nemophila heterophylla Mary L. Bowerman 1931-3-7 556 Contra Costa Sloan Road w of Sloan Ranch Mount Diablo (Mount Diablo); , w of Sloan Ranch Comment
  JEPS25353  Nemophila menziesii Rimo Bacigalupi with Paul C. Hutchinson and John Weiler 1959-3-19 6963 Contra Costa 2.4 mi w Byron (s-facing low hill along Camino Diablo, 0.3 mi e of junction with Vasco Road); along Camino Diablo, w of Byron 60 Comment
  JEPS3131  Nemophila menziesii Mary L. Bowerman 1931-3-8 557 Contra Costa w bank Mitchell Canyon, Mount Diablo Mount Diablo, Mitchell Canyon 304 Comment
  UC592190  Nemophila menziesii H. L. Mason 1932-3-20 6837 Contra Costa Antioch sand hills 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
  JEPS111846  Nemophila menziesii var. menziesii D. G. Kelch 2005-3-25 05 .84 Contra Costa Pinole Peak Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak 250 Comment
  UC767551  Nemophila pedunculata R. F. Hoover 1938-3-5 2816 Contra Costa mouth of Kirker Creek Canyon Comment
  CAS-BOT-BC233455  Nicotiana glauca Ira L. Wiggins 1930-4-18 4604 Contra Costa East end of Jersey Island Comment
  UC1125161  Nicotiana glauca G. T. Nordstrom 1937-10-28 1402 Contra Costa 1.4 mi n Somersville; Mt. Diablo Quad. 91 Comment
  HSC28472  Nicotiana glauca J. D. Ackerman, A. M. Montalvo 1973-12-20 123 Contra Costa 5 mi. E of Clayton Comment
  RSA0027889  Nicotiana quadrivalvis Barbara Ertter, David Gowen 2010-11-17 20698 Contra Costa Mangini acquisition (Save Mount Diablo) between Lime Ridge and Mount Zion. 200 Comment
  JEPS99491  Nuttallanthus texanus Mary Bowerman 1995-5-28 Contra Costa Mount Diablo, Knoll 1000' N of Wall Pt. Trail. Trail to Pine Pond from Wall Pt. fire road half encircles it on W side. Comment
  JEPS44838  Oemleria cerasiformis H. H. Haworth 1917-4-22 Contra Costa Orinda Park Comment
  RSA0025334  Oemleria cerasiformis James R. Shevock 2012-8-12 40657 Contra Costa Tilden Regional Park, East Bay Regional Park District. Along Grizzly Peak Trail about midway between the upper and lower trailheads. 448 Comment
  UC1128080  Oemleria cerasiformis R. W. Lundh 1933-4-2 226 Contra Costa San Francisco Quad. Comment
  CAS-BOT-BC171588  Oenothera deltoides subsp. howellii J. H. Thomas 1953-4-25 3004 Contra Costa Antioch sand hills along San Joaquin River, 2 miles west of Antioch Bridge Comment
  UC35412  Oenothera deltoides subsp. howellii Chesnut and Drew 1889-4-18 Contra Costa Sand Hills Antioch 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
  RSA119426  Oenothera deltoides subsp. howellii William M. Klein 1958-6-9 432 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
  UC1584816  Oenothera elata subsp. hookeri Jerry Powell 1990-8-29 1590 Contra Costa Antioch National Wildlife Refuge Comment
  UC1952821  Olea europaea Barbara Ertter with David Gowen 2010-11-17 20701 Contra Costa north face of Lime Ridge Open Space (City of Walnut Creek). Comment
  UC27890  Orobanche bulbosa Kellogg Contra Costa Mt. Diablo Comment
  RSA0059169  Orobanche bulbosa F. T. Bioletti 1894-5-13 11693 Contra Costa Mt. Diablo. Comment
  CAS-BOT-BC499852  Orobanche fasciculata W. L. Jepson 1918-6-5 7618 Contra Costa Mt. Diablo (north peak) 1066 Comment
  UC1586123  Orobanche fasciculata Barbara Ertter with Elizabeth Neese 1988-4-24 7451 Contra Costa Black Diamond Mines Regional Preserve SW of Antioch, above powerline road E of Nortonville Road. Comment
  JEPS10840  Orobanche uniflora subsp. occidentalis Mary L. Bowerman 1935-4-22 2895 Contra Costa Ridge west of Pioneer Road (west of Old Stage Road); Grassy hillside with northwest exposure. Comment
  UC27900  Orobanche uniflora subsp. occidentalis W. H. Brewer 1862-5-23 1152 Contra Costa SE of Mount Diablo. Comment
  JEPS82723  Orobanche vallicola Wayne Roderick 1981-10-2 Contra Costa s. entrance area Briones Regional Park 152 Comment
  CAS-BOT-BC502955  Orobanche vallicola John Thomas Howell 1929-9-21 4391 Contra Costa Marsh Creek Road, 7 miles SE of Clayton Comment
  CAS-BOT-BC238373  Orthocarpus James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  POM15363  Orthocarpus purpurascens H. P. Chandler 1901-3-22 849 Contra Costa Martinez. Comment
  POM181478  Orthocarpus purpurascens I. L. Wiggins 1930-4-17 4555 Contra Costa 1 mi E of Mountain House on road to Byron. Comment
  UC1618306  Osmorhiza berteroi Barbara Ertter with Travis Columbus 1990-6-10 9108 Contra Costa near stream crossing on Spengler Creek ne Briones Peak (ne corner of park, w of Pleasant Hill); Briones Regional Park, Briones Hills 182 Comment
  CDA4721  Oxalis corniculata D. G. Kelch, A. G. Murdock 2005-5-23 5 .375 Contra Costa Carquinez Strait Region; Crockett - Crolona Heights. 6th Street at Lillian Street, Crockett. Comment
  SEINET920557  Oxalis corniculata August Hartman 1960-1 32 Contra Costa 2055 Carmel Drive, Concord. 22 Comment
  UC2070526  Oxalis pes-caprae Barbara Ertter 2003-3-28 18138 Contra Costa Round Valley Regional Preserve, mouth of Hardy Canyon along High Creek. Comment
  UC2028103  Packera breweri Barbara Ertter with Christopher Baysdorfer 1998-5-10 16124 Contra Costa West side Lime Ridge Open Space northwest of Mount Diablo. Comment
  JEPS101188  Parapholis incurva Dean W. Taylor 1990-4-10 10618 Contra Costa Byron Hot Springs Road, 1 mile S of Holey Road 24 Comment
  UCD88472  Parapholis incurva Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  UCD88473  Parapholis incurva Katharine Brandegee 1923-5-8 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
  JEPS111919  Parietaria judaica Dean G. Kelch and Andrew G. Murdock 2004-4-11 DGK 04 .078 Contra Costa Crockett - Crolona Heights. 6th Street at Lillian Street. Comment
  JEPS79630  Parvisedum pentandrum Edward Lee 1979-5-6 Contra Costa Mount Diablo, Lower Mitchell Canyon Lower Mitchell Canyon; Mount Diablo, Lower Mitchell Canyon Comment
  CAS-BOT-BC259649  Paspalum dilatatum Virginia I. Dains; Walter Knight 1986-8-8 5498 Contra Costa Contra Costa - San Joaquin Delta Area. Jct Rock S1 and Werner Cut, above high water mark on east facing levee Comment
  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
  JEPS87902  Pectocarya pusilla Barbara Ertter, Lynne Hosley 1993-4-17 11508 Contra Costa ca. 10 air mi. n. Livermore (hills in lee of Mt. Diablo, e. side of open meadow along Blue Oak trail, Morgan Territory); Morgan Territory 609 Comment
  JEPS10367  Pedicularis densiflora W. L. Jepson 1918-6-3 7584 Contra Costa Donner Canyon; Mount Diablo 609 Comment
  JEPS84382  Pedicularis densiflora Roxanne Bittman 1977-3-29 27 Contra Costa on n si9de of Mount Diablo Scenic Road about 10 mi from base of mountain Mount Diablo Scenic Road 762 Comment
  JEPS65608  Pediomelum californicum W. L. Jepson 1922-5-23 9657 Contra Costa near very summit Mt. Diablo 1170 Comment
  UC692274  Pediomelum californicum Mary L. Bowerman 1930-6-7 282 Contra Costa Meridian Peak summit , Meridian Peak summit (Mount Diablo) Comment
  UC1795797  Pellaea mucronata var. mucronata Barbara Ertter, Mary L. Bowerman 1994-6-19 12856 a Contra Costa Mt. Diablo State Park east of Walnut Creek; scrub oak thicket north road, north of lower-summit parking lot, next to drainage on N. facing slope. Comment
  UC1050062  Penstemon barbatus N. Floy Bracelin 1942-6-12 1489 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  NY583786  Penstemon centranthifolius C. F. Baker 1903-4-25 2938 Contra Costa Antioch Comment
  NY583832  Penstemon centranthifolius L. S. Rose 1936-4-24 36158 Contra Costa 3 miles east of Antioch 15.2 Comment
  UC2028335  Penstemon centranthifolius Barbara Ertter 1991-5-5 9775 Contra Costa Black Diamond Mines Regional Preserve S of Pittsburg, S side of Rose Hill above Nortonville Pass Comment
  RSA412511  Penstemon centranthifolius H. de Forest 1930-4-6 s.n. Contra Costa Antioch. Banks of San Joaquin River. Comment
  SEINET12320780  Penstemon centranthifolius Unknown 1980-1 3879 Contra Costa Lime Ridge, N end, S of Ygnacio Valley Rd between Walnut Creek & Concord Comment
  UCD124087  Penstemon centranthifolius M. Wiesendanger 1925-5-1 1481 Contra Costa San Miguel. Comment
  JEPS7555  Penstemon heterophyllus var. heterophyllus Mary L. Bowerman 1935-6-15 3132 Contra Costa Flat (first bottom) where stream forks Mount Diablo, Mitchell Creek, Flat (first bottom) (Mitchell Creek, Mount Diablo) 640 Comment
  JEPS7568  Penstemon heterophyllus var. heterophyllus E. Ferguson 1919-1 Contra Costa Donner Canyon Mt. Diablo, Donner Canyon Comment
  UC2028143  Penstemon heterophyllus var. purdyi Barbara Ertter 1998-4-4 15972 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, Quarry Hill. Comment
  UC34652  Pentachaeta alsinoides Chesnut and Drew 1889-4-16 Contra Costa Martinez 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
  SD241767  Pentachaeta alsinoides Barbara Ertter, Lisa Schultheis 1995-4-27 14006 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; northwest side of open grassy ridge at end of Arbolado Dr. 121 Comment
  POM301041  Pentachaeta exilis Mary L. Bowerman 1935-5-8 2981 Contra Costa First main ridge east of Pioneer Camp. 762 Comment
  CAS-BOT-BC71614  Pentagramma triangularis D. E. Breedlove 1970-4-18 17426 Contra Costa at the north edge of Lafayette above Laurel Drive 243 Comment
  SEINET3873573  Pentagramma triangularis Clayton Newberry 1994-4-30 7252 Contra Costa Mount Diablo State Park, trail from Mitchell Cn. Prkng to Donner Cr.; 0 900 Comment
  JEPS41053  Pentagramma triangularis subsp. triangularis Rimo Bacigalupi and L. R. Heckard 1965-5-11 9078 Contra Costa sw of Richmond Brooks Isl; San Francisco Bay Comment
  UC691889  Perideridia californica Mary L. Bowerman 1933-4-26 1930 Contra Costa Perkins Canyon Mount Diablo (between main e ridge of North Peak and ridge to its south, by edge of stream) 518 Comment
  UCD161764  Persicaria James A. Neilson Jr. 1972-10-22 3505 Contra Costa Walnut Creek drainage at State Highway 4. (Exact location unknown. Coordinates and elevation estimated by label maker.) 1 Comment
  CAS-BOT-BC413498  Persicaria amphibia Walter Knight; Joanne Dean 1978-8-14 3176 Contra Costa Browns Island Comment
  CDA9188  Petrorhagia dubia Christopher Thayer 1995-6-5 s.n. Contra Costa Carquinez Strait; W of Pinole Peak. Comment
  UC691690  Phacelia breweri Mary L. Bowerman 1933-5-2 1953 Contra Costa below Pioneer Camp; Mount Diablo 762 Comment
  UC880995  Phacelia breweri Alice Eastwood 1915-5-30 4487 Contra Costa near type locality Mt. Diablo Comment
  UC2032819 Image available Phacelia californica Doran, Andrew Scott 2012-3-20 689 Contra Costa North end of Brooks Island along ridge overlooking artificial spit, southwest of caretakers residence. Comment
  UC762065  Phacelia californica R. F. Hoover 1938-2-21 2753 Contra Costa Point Richmond Comment
  JEPS68958  Phacelia ciliata var. ciliata Edward Lee 1935-3-10 1290 Contra Costa Kirker Pass, Donovan Road, west watershed of Kirker's Creek Kirker Pass; , Donovan Road Comment
  JEPS111838  Phacelia distans D. G. Kelch 2003-4-3 03 .359 Contra Costa Cummings Skyway 115 Comment
  UC56706  Phacelia distans Harley P. Chandler 1901-4-5 967 Contra Costa Mt. Diablo Comment
  UC672416  Phacelia distans Herbert L. Mason 1928-4-29 4422 Contra Costa Sycamore Canyon Mount Diablo Comment
  RSA276851  Phacelia distans James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  RSA74783  Phacelia distans F. W. Peirson 1923-7-1 5302 Contra Costa Near summit of Mt. Diablo. Comment
  UCSC000586  Phacelia magellanica R. F. Hoover 1938-3-8 2821 Contra Costa Berkeley Country Club Comment
  UCSB46349  Phacelia nemoralis Hawbecker, M. 1983-5-7 Contra Costa Roadside trail, 2 miles off of Grizzly Peak Road, 7.3 miles north of Marin Ave. 502 Comment
  UC691694  Phacelia nemoralis subsp. nemoralis Mary L. Bowerman 1936-5-6 3410 Contra Costa Mitchell Canyon Mount Diablo (by road) 228 Comment
  CAS-BOT-BC154332  Phacelia phacelioides Alice Eastwood 1915-5-30 4520 Contra Costa Near type locality. Mt. Diablo Comment
  UC691330  Phacelia phacelioides Mary L. Bowerman 1933-5-2 1950 Contra Costa below Pioneer Camp; Mount Diablo 762 Comment
  SEINET3158353  Phacelia tanacetifolia L. S. Rose 1933-4-17 33091 Contra Costa Antioch Comment
  CDA2278  Phalaris aquatica T. C. Fuller 1961-9-13 7003 Contra Costa Byron-Tracy Hwy (Hwy J4), 0.1 mile north of Delta-Mendota Canal. 0 Comment
  RSA721532  Phalaris aquatica Mary L. Bowerman 1994-6-4 s.n. Contra Costa Mount Diablo; at E end of Castle Rock Park, perhaps just outside park. Comment
  CAS-BOT-BC259028  Phalaris lemmonii Ira L. Wiggins 1930-4-17 4583 Contra Costa 1/4 mi. s. of Byron Comment
  POM181445  Phalaris lemmonii I. L. Wiggins 1930-4-7 4583 Contra Costa 1/4 mile S of Byron Comment
  JEPS70601  Phalaris minor W. L. Jepson 1918-6-5 7595 Contra Costa Donner Canyon Mt. Diablo (Mt. Diablo); vicinity of San Francisco Bay, Mt. Diablo 228 Comment
  UCD89404  Phalaris paradoxa P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UC52449  Phlox gracilis H. M. Hall 1901-3-22 1685 Contra Costa Port Costa San Francisco Bay Region Comment
  UC2028439  Phoenix Barbara Ertter with Chris Thayer 1996-10-25 15357 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park Comment
  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
  UC2070624  Pholistoma membranaceum Barbara Ertter 2003-3-28 18128 Contra Costa Round Valley Regional Preserve, E-most in line of rock outcrops SW of Crest of Hardy Canyon Trail, Comment
  UCD120958  Pholistoma membranaceum J. M. Tucker 1981-4-25 4454 Contra Costa Antonio Souza Ranch southwest of Byron (extended Section NW quarter Sec. 31, R3E, T1S, Mt. Diablo Meridian). 309 Comment
  UC692040  Phoradendron macrophyllum Mary L. Bowerman 1931-2-22 520 Contra Costa head of e. fork Sycamore Canyon; Mt. Diablo, Sycamore Canyon Comment
  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
  UC692038  Phoradendron villosum Mary L. Bowerman 1930-9-9 450 Contra Costa knoll by canyon running past Gabriel Hinks' Comment
  CAS-BOT-BC260889  Phragmites australis A. D. E. Elmer 1903-7-1 4541 Contra Costa Martinez Comment
  CAS-BOT-BC260891  Phragmites australis J. W. Congdon 1893-7-29 s.n. Contra Costa Martinez Comment
  UCD108170  Pickeringia montana R. A. Pendleton 1923-3-30 s.n. Contra Costa Mt. Diablo. Comment
  CDA39576  Picrasma quassioides E. Dean, Petra Unger 2005-7-19 2700 Contra Costa Contra Costa Water District land, Byron Tract, just south of Highway 4, along Old River, on east bank. 0 Comment
  CAS-BOT-BC76966  Pilularia americana Katharine Brandegee 1909-4-24 s.n. Contra Costa Between Antioch and Marsh Creek, Briones Road. Comment
  JEPS47871  Pinus coulteri W. L. Jepson 1909-6-25 3116 Contra Costa Mt. Diablo Comment
  POM287316  Pinus coulteri Lyman Benson 1935-3-16 6280 Contra Costa Mitchell Canyon near Clayton; Mt. Range: Mt. Diablo; Watershed: Walnut Creek. 244 Comment
  RSA32648  Pinus coulteri C. B. Wolf, Allen L. Chickering, H. L. Mason 1943-2-28 11442 Contra Costa 1 mile SW of the old coal mining settlement of Nortonville at the Northern base of Mt. Diablo hills. 305 Comment
  UC691930  Pinus coulteri Mary L. Bowerman 1931-3-8 565 Contra Costa above Mitchell Rock; Mount Diablo Comment
  UCD134619  Pinus halepensis Rudolf Schmid 1997-5-21 1997 -14 Contra Costa Hillside Natural Area, El Cerrito; nw. of King Ct. entrance. 175 Comment
  SEINET3874454 Image available Pinus radiata James K. Detling 1963-3-21 39 Contra Costa Near Glorietta School, Orinda, California.; 0 91 Comment
  CAS-BOT-BC72777  Pinus sabiniana L. R. Abrams 1921-5-25 8057 Contra Costa Near summit of Mt. Diablo Comment
  UC1134136  Pinus sabiniana R. W. Lundh 1932-9-7 161 Contra Costa 1 mi n Eagle point; Mt. Diablo Quad. 228 Comment
  UC400311  Pinus sabiniana State Survey 1866-5-1 Contra Costa Monte del Diablo Comment
  CAS-BOT-BC72776  Pinus sabiniana Mary L. Bowerman 1933-5-10 2070 Contra Costa Mount Diablo, one hundred feet below Muir Area. Comment
  CAS-BOT-BC137272  Piperia elegans John Thomas Howell 1942-8-23 17862 Contra Costa Field redacted by CAS, contact the data manager for more information Comment
  JEPS79510  Piperia elongata Edward Lee 1978-7-9 Contra Costa Pt. San Pablo Comment
  UC691270  Piperia michaelii Mary L. Bowerman 1935-5-16 3004 Contra Costa e side North Peak (above Gabriel-Hinks'); Mount Diablo 289 Comment
  UC691267  Piperia unalascensis Mary L. Bowerman 1931-5-2 789 Contra Costa n end Eagle Point ridge; Mount Diablo Comment
  CAS-BOT-BC158327  Piperia unalascensis Alice Eastwood 1915-5-30 4456 Contra Costa Field redacted by CAS, contact the data manager for more information Comment
  JEPS90184  Plagiobothrys acanthocarpus Dean W. Taylor 1992-4-16 12390 Contra Costa s of Byron Hot Springs (San Joaquin Valley); San Joaquin Valley 45 Comment
  JEPS116911  Plagiobothrys acanthocarpus David Gowen 2009-3-31 977 Contra Costa Black Diamond Regional Preserve. Large open flat east of Lower Oil Canyon Trail. Comment
  JEPS111848  Plagiobothrys bracteatus D. G. Kelch 2005-3-25 05 .93 Contra Costa Fernandez Ranch Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak 80 Comment
  UC517459  Plagiobothrys bracteatus John Thomas Howell 1933-5-14 11232 Contra Costa St. Mary's College Comment
  UC691334  Plagiobothrys bracteatus Mary L. Bowerman 1933-3-18 1755 Contra Costa Hidden Pond Mount Diablo Comment
  UC79430  Plagiobothrys bracteatus Katharine Brandegee May, 1884 Contra Costa Antioch Comment
  POM226098  Plagiobothrys bracteatus J. T. Howell 1933-5-14 11232 Contra Costa St. Mary s College Comment
  UC101457  Plagiobothrys canescens Katharine Brandegee May 1907 Contra Costa Antioch Station S.P.R.R. Antioch Comment
  UC518020  Plagiobothrys canescens Lewis S. Rose 1933-4-17 33098 Contra Costa Antioch Comment
  UC78032  Plagiobothrys canescens T. S. Brandegee May 1890 Contra Costa Antioch Comment
  UC78037  Plagiobothrys canescens T. S. Brandegee May 1890 Contra Costa Antioch Comment
  UC2028130  Plagiobothrys canescens Barbara Ertter 1998-5-3 16079 Contra Costa Wall Point Road and Emmons Canyon Road, southwest flank of Mount Diablo. Comment
  JEPS116860  Plagiobothrys fulvus var. campestris David Gowen 2007-4-13 670 Contra Costa Diablo Foothills, west of the grassy field at Castle Rock Recreation Area. Comment
  UC1618196  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
  UC536016  Plagiobothrys nothofulvus Laurence S. Jones 1934-4-8 44 Contra Costa w slope Mt. Diablo (approx 3 mi surface distance from peak) 609 Comment
  HSC3502  Plagiobothrys stipitatus Greg Bos 1963-4-26 88 Contra Costa Pinole Valley Rd., SE of Pinole 76 Comment
  UCSB5650  Plagiobothrys stipitatus Robbins, G. 1937-4-25 Contra Costa Along roadside; 2 miles east of Alamo Comment
  JEPS61072  Plagiobothrys stipitatus var. micranthus E. L. Greene 1889-3-24 Contra Costa Byron Comment
  UC583291  Plagiobothrys stipitatus var. micranthus Lewis S. Rose 1936-4-24 36152 Contra Costa 10 mi s Antioch 30 Comment
  RSA666361  Plagiobothrys stipitatus var. micranthus Barbara Ertter, J. D. Jokerst, D. Magney 1989-4-5 8126 Contra Costa SE Contra Costa: alkali sink W and adjacent to Clifton Court Forebay, ca 15 air miles SW of Stockton 0 Comment
  UC78204  Plagiobothrys stipitatus var. stipitatus K. Brandegee 1889-5-1 Contra Costa Antioch Comment
  CHSC67188  Plagiobothrys trachycarpus James D. Jokerst 1991-3-28 3229 Contra Costa Kellogg Watershed Inundation Zone at enclosure at 'The Windmills,' N of Livermore. Comment
  JEPS116853  Plagiobothrys undulatus David Gowen 2007-4-16 677 Contra Costa Briones Regional Park in vernal depression northeast of Sindicich Lagoon. Comment
  SEINET3854794 Image available Plantago bigelovii Lewis S. Rose 1933-3-29 33040 Contra Costa Nortonville. Comment
  RSA756696  Plantago bigelovii subsp. californica Barbara J. Ertter, Jim Jokerst, Dave Magney 1989-4-5 8128 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  UCR263544  Plantago coronopus Barbara Ertter 1990-10-24 9684 Contra Costa San Francisco Bay Region, Martinez Regional Shoreline on Carquinez Strait 2 Comment
  JEPS24312  Plantago elongata S. G. Smith 1957-4-28 2851 Contra Costa 1 mi s Byron Comment
  JEPS7105  Plantago elongata M. K. Curran May 1886 Contra Costa near Antioch Comment
  OBI11666  Plantago elongata Robert F. Hoover 1967-4-28 10516 Contra Costa Byron Hot Springs Comment
  POM61282  Plantago elongata subsp. pentasperma C. F. Baker 1903-4-27 2866 Contra Costa Byron. Comment
  CHSC106715  Plantago erecta Barbara Ertter; Jim Jokerst, Dave Magney 1989-4-5 8141 Contra Costa Alkali sink W and adjacent to CLifton Forebay, ca 15 air miles SW of Stockton, near sea level. Comment
  UC691746  Plantago erecta Mary L. Bowerman 1930-6-18 336 Contra Costa upper end Rock City Canyon Mount Diablo, Rock City Canyon Comment
  RSA755543  Plantago erecta Barbara J. Ertter, Jim Jokerst, Dave Magney 1989-4-5 8141 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  UC691530  Plantago major Mary L. Bowerman 1932-11-11 1642 Contra Costa Lower Moses Rock Spring Mount Diablo Comment
  UC1192028  Plantago major Malcolm A. Nobs and S. Galen Smith 1949-7-8 947 Contra Costa 4 mi. n. Kingston (Otto's Black Bass Resort); Otto's Black Bass Resort Comment
  UC1607651  Plantago subnuda Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10882 Contra Costa just w Antioch marina (levee at n-center of preserve, at end of road); Dow Wetlands Preserve Comment
  JEPS40290  Platanus racemosa W. L. Jepson 1899-10-7 14869 Contra Costa canyon e Bald Peak; Berkeley Hills Comment
  UC11981  Platanus racemosa F. W. Koch Aug. 1895 Contra Costa Wildcat Creek Comment
  UCD143180  Platanus racemosa Robt. Branstead 1934-3-30 s.n. Contra Costa SW slope of Mt. Diablo. 426 Comment
  UC101599  Platystemon californicus Katharine Brandegee 1907-5-5 a Contra Costa between Antioch and Marsh Creek; between Antioch and Marsh Creek Comment
  UC1607967  Plectritis ciliosa Donald G. Nelson 1937-3-30 463 Contra Costa along Marsh Creek Rd. between Clayton and Byron Comment
  JEPS2799 Image available Plectritis macrocera J. Burtt Davy 1895-4-7 951 Contra Costa Antioch; ; Antioch, Contra Costa Co. Comment
  PASA292  Plectritis macrocera Annetta Carter 1929-3-31 Contra Costa Near Clayton Comment
  UC1818893  Plectritis macrocera Barbara Ertter, Mary Bowerman et al. 1995-5-7 14068 Contra Costa Three-Springs Creek, small serpentine patch at road junction, Comment
  UC28871  Plectritis macrocera Jos. Burtt Davy 1901-4-21 Contra Costa Wildcat Canyon Comment
  UC691523  Plectritis macrocera Mary L. Bowerman 1933-4-15 1866 Contra Costa Canyon s of Arroyo del Cerro (Mount Diablo); Mount Diablo 411 Comment
  POM59719  Plectritis macrocera C. F. Baker 1903-4-28 2813 Contra Costa Mitchell's Canyon, Mt. Diablo. Comment
  UC2027810  Plectritis macrocera Barbara Ertter with Stu Garrett 1997-3-29 15542 Contra Costa West side Mount Diablo, Mothers Trail. Comment
  CAS-BOT-BC260944  Pleuropogon californicus var. californicus Ynes Mexia 1929-4-21 2388 Contra Costa Junction of Franklin Canyon Comment
  SEINET199818 Image available Pleuropogon californicus var. californicus P. H. Raven, GT Robbins 1956-4-28 9042 Contra Costa Just east of junction to Martinez along state highway 4. Comment
  UCD90164  Pleuropogon californicus var. californicus P. B. Kennedy 1929-4-21 s.n. Contra Costa Near Concord, corner of Franklin Canyon Road, by Soldier's Monument. Comment
  UCD90185  Pleuropogon californicus var. californicus R. Tofsrud 1946-4-1 s.n. Contra Costa 1/2 mile south of Pacheco. Comment
  CAS-BOT-BC260947  Pleuropogon californicus var. californicus Peter Kamb; Francia Chisaki; Galen Smith 1951-4-14 1978 Contra Costa Margins of small pond 0.2 miles south of junction of Highways 4 and 21, 7 miles north of Walnut Creek Comment
  UCD90186  Pleuropogon californicus var. californicus R. Tofsrud 1946-4-1 s.n. Contra Costa Concord airfield. Comment
  UC761988  Pluchea odorata var. odorata R. F. Hoover 1937-8-31 2703 Contra Costa Avon Comment
  UC2027749  Poa annua Barbara Ertter 1996-11-24 15424 Contra Costa West side of Mount Diablo, Pine Pond along Stage Road in Pine Canyon. Comment
  CAS-BOT-BC246643  Poa howellii Mary L. Bowerman 1933-5-22 2167 Contra Costa Mount Diablo. Inner Black Hills: West of 1970 Comment
  CAS-BOT-BC246644  Poa howellii John Thomas Howell 1933-5-14 11256 Contra Costa Hills east of St. Mary's College Comment
  CHSC107517  Poa howellii D. G. Kelch 2006-5-4 06 .127 Contra Costa Coast Range: Vaca Canyon, on North facing road cut/bank along Alhambra Valley Road. 162 Comment
  UC912661  Poa howellii Herbert L. Mason 1928-4-15 4350 Contra Costa e end Moraga Ridge Comment
  CHSC25045  Poa secunda subsp. secunda Willis Ball 1975-3-9 480 Contra Costa In area #8. On slope of a hill ca. 510 yds. w of Contra Loma Blvd. 124 Comment
  UC692416  Poa secunda subsp. secunda Mary L. Bowerman 1933-4-15 1869 Contra Costa canyon s of Arroyo del Cerro (rocky knoll 250 ft below spring); Mt Diablo Comment
  UCD91671  Poa secunda subsp. secunda P. B. Kennedy 1916-5-1 s.n. Contra Costa Pinehurst. Comment
  UC306575  Pogogyne douglasii A. D. E. Elmer May 1903 4320 Contra Costa Walnut Creek Comment
  JEPS107077  Pogogyne serpylloides Barbara Ertter, Lisa Schultheis 1995-4-27 14017 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; head of west facing scrub-filled draw (east of golf-course). Comment
  JEPS78820  Pogogyne serpylloides Edward Lee 1936-5-24 2161 Contra Costa Headwaters of Marsh Creek, about 8 miles from Marsh Creek Road, Morgan Territory Comment
  POM193972  Pogogyne serpylloides J. T. Howell 1930-4-22 4747 Contra Costa Bald Peak Comment
  UC2028029  Pogogyne serpylloides Barbara Ertter 1997-9-14 15803 Contra Costa WSW base of Mount Diablo, along creek at fence line between Pine Ridge and lower Wall Point Road from Macedo Ranch. Comment
  UC762113  Pogogyne zizyphoroides R. F. Hoover 1941-4-12 4842 Contra Costa 2 miles S of Antioch Comment
  UC691131  Polygonum amphibium Mary L. Bowerman 1935-7-22 3185 Contra Costa Hidden Pond Mount Diablo 518 Comment
  UC1795694  Polygonum amphibium var. emersum Barbara Ertter, Kristin Ertter 1995-7-11 14482 Contra Costa West side of Mt Diablo SW of Walnut Creek; dense growth at lower end of Pine Pond, in sun. 182 Comment
  UC1192327  Polygonum amphibium var. stipulaceum Malcolm A. Nobs and S. Galen Smith 1949-7-7 937 Contra Costa Webb Island Sacramento Delta peat lands (edge of drainage ditch) Comment
  CDA37404  Polygonum argyrocoleon D. G. Kelch, Mike Perlmutter 2011-9-23 11 .759 Contra Costa Entry to Discovery Bay. Comment
  CHSC116609  Polygonum aviculare Lowell Ahart; Josephine Guardino 2016-4-19 20782 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. 1.4 miles northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  JEPS121070  Polygonum aviculare Dean G. Kelch and Andrew G. Murdock 2005-6-27 DGK 05 .396 Contra Costa Crockett. 6th Street at Lillian Street. Comment
  CHSC97872  Polygonum aviculare subsp. buxiforme D. G. Kelch 2006-7-14 06 .328B Contra Costa Along Marine Vista Ave immediately west of Pacheco Slough. East of Martinez. 1 Comment
  CDA15275  Polygonum aviculare subsp. rurivagum G. F. Hrusa, D. Crowe, R. York 1998-7-17 14712 Contra Costa Sacramento Delta; E end of Dow Chemical property at Antioch. Comment
  UC1818918  Polygonum lapathifolium Barbara Ertter 1995-8-19 14503 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
  CDA1502  Polygonum ramosissimum var. ramosissimum D. G. Kelch 1996-10-17 s.n. Contra Costa Carquinez Strait; Pt Edith Marsh Comment
  JEPS100159  Polypodium calirhiza G. Smick 2003-6-6 GAS 217 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  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
  CAS-BOT-BC72043  Polypodium calirhiza Mary L. Bowerman 1935-3-15 2736 Contra Costa Arroyo del Cerro, east fork 262 Comment
  UCR254830  Polypogon Peter Rubtzoff 1968-9-18 5966 Contra Costa North Gate Road, c. 5 miles NW of Mt. Diablo State Park north entrance 58 Comment
  CAS-BOT-BC233018  Polypogon interruptus Mary L. Bowerman 1931-4-4 656 Contra Costa Mount Diablo. West Road 4.5 miles from entrance Comment
  UC1819045  Polypogon monspeliensis Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14234 Contra Costa South side Mount Diablo, Sheepherder Springs complex 1/2 mile north of Curry Point, wet ground in grassland. 487 Comment
  UCR2722  Polypogon monspeliensis A. A. Beetle 1941-6-24 1750 Contra Costa Point Richmond on San Francisco Bay Comment
  CDA23603  Polystichum munitum D. G. Kelch 2008-2-24 8 .015 Contra Costa Carquinez Strait; Pinole Valley Park. Comment
  RSA693322  Polystichum munitum Mark Morris 1929-03 s.n. Contra Costa Mt. Diablo. Comment
  CAS-BOT-BC102382  Populus fremontii Ira L. Wiggins 1930-4-18 4602 Contra Costa Levee bank, S.E. side of Jersey Island Comment
  UC406993  Populus fremontii subsp. fremontii Ira L. Wiggins 1930-4-18 4602 Contra Costa se side Jersey Island (Levee bank); se side of Jersey Island Comment
  UC2027748  Populus fremontii subsp. fremontii Barbara Ertter 1996-11-24 15426 Contra Costa West side of Mount Diablo, Pine Pond along Stage Road in Pine Canyon. Comment
  JEPS99495  Potamogeton foliosus Mary Bowerman 1995-6-8 Contra Costa Mount Diablo, Pine Pond. Comment
  JEPS111056  Potamogeton foliosus var. foliosus Barbara Ertter 2005-8-17 18617 Contra Costa N base of Mount Diablo S of Clayton, small permanent pond NE of Mitchell Canyon parking lot Comment
  UC2029168  Potamogeton pectinatus Barbara Ertter 2000-7-16 17399 Contra Costa Lower Pine Creek in Diablo Foothills Regional Park. Comment
  UC1100086  Potamogeton zosteriformis Malcolm A. Nobs, S. Galen Smith 1949-7-7 939 Contra Costa Webb Island, Sacramento Delta peat lands Webb Island; Sacramento Delta Comment
  CDA23062  Potentilla glandulosa D. G. Kelch, D. A. Weinstein 2008-4-25 8 .078 Contra Costa Alvarado Park (west end of Wildcat Canyon Park) on north-facing hillside above Hindu temple in mixed scrub/grassland. Comment
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Jan 7 2016
  CAS-BOT-BC144847  Potentilla rivalis Virginia I. Dains; Walter Knight 1986-8-8 5494 Contra Costa Jct Rock S1 & Werner Cut 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
  CDA39058  Prunus ilicifolia D. G. Kelch 2011-6-12 11 .586-B Contra Costa Along railroad tracks north of Point Costa. 0 Comment
  JEPS112096  Prunus subcordata D. G. Kelch 2005-3-26 05 .99 Contra Costa Pinole Peak Fernandez Ranch. South side - road from Perreria Road to Pinole Peak Ridge 268 Comment
  UC1128498  Prunus subcordata R. W. Lundh 1932-9-3 157 Contra Costa 1 mi n of North Peak 609 Comment
  UC1618367  Prunus subcordata Barbara Ertter, Brad Olson 1992-4-13 10955 Contra Costa Morgan Territory Road Comment
  UC691157  Prunus subcordata Mary L. Bowerman 1931-4-5 674 Contra Costa between rocky point below Gregory Ranch and road below Mount Diablo Comment
  CAS-BOT-BC154628  Prunus subcordata Peter H. Raven; H. L. Mason; R. Ornduff; et al. 1957-4-11 10626 Contra Costa Curry Canyon 4.0 mi. s. of Recreation Ground Comment
  CDA26219  Prunus virginiana subsp. demissa A. G. Murdock, D. G. Kelch 2004-5-28 268 Contra Costa Carquinez Strait Region; Pinole Peak. Comment
  UC1614254  Prunus virginiana var. demissa Charles M. Belshaw 1935-6-10 695 Contra Costa Morgan Territory Road Comment
  JEPS111736  Pseudognaphalium beneolens D. G. Kelch 2004-9-2 04 .345 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Steep road-cut. Alhambra Road. South of Green St. 3 Comment
  JEPS111514  Pseudognaphalium californicum D. G. Kelch 2005-5-13 05 .277 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 66 Comment
  CAS-BOT-BC226636  Pseudognaphalium luteoalbum Virginia I. Dains; Walter Knight 1986-8-8 5500 Contra Costa Jct Rock S1 & Werner Cut Comment
  SEINET3875499  Pseudotsuga menziesii James K. Detling 1963-3-21 40 Contra Costa Near Glorietta School, Orinda.; 0 30 Comment
  UC1745623  Psilocarphus brevissimus var. brevissimus Annetta M. Carter 1951-5-13 3055 Contra Costa 3.3 mi. S of Byron. Comment
  JEPS100175  Psilocarphus tenellus G. Smick 2003-5-8 GAS 179 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA31229  Psilocarphus tenellus var. tenellus Joseph A. Ewan 1936-5-3 9497 Contra Costa Wildcat Creek near Orinda road bridge. Comment
  POM138612  Ptelea baldwinii subsp. crenulata C. F. Baker 1903-4-28 2943 Contra Costa Mitchell's Canyon, Mt. Diablo. Comment
  CAS-BOT-BC148623  Ptelea crenulata Brandegee s.n. Contra Costa Antioch Comment
  CAS-BOT-BC148624  Ptelea crenulata Barrett Anderson 1987-4-30 3496 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD. 125 Comment
  CAS-BOT-BC148627  Ptelea crenulata Alice Eastwood 1915-5-30 4440 Contra Costa Mount Diablo Comment
  JEPS40171  Ptelea crenulata W. L. Jepson 1923-6-10 9993 Contra Costa Upper Marsh Creek; Mt. Diablo Comment
  JEPS40175  Ptelea crenulata F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  JEPS99948  Ptelea crenulata G. Smick 2003-4-8 GAS 127 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC17374  Ptelea crenulata Prof. W. L. Jepson 1898-10-18 Contra Costa Mt. Diablo Comment
  UC571102  Ptelea crenulata H. L. Mason 1928-4-1 4269 Contra Costa n of Mt. Diablo (canyon back of Antioch hills) Comment
  UC579884  Ptelea crenulata Annetta Carter 1935-6-1 868 Contra Costa ridge on w side of peak Mount Diablo 1036 Comment
  UC868043  Ptelea crenulata Lewis S. Rose 1940-4-30 40249 Contra Costa 6 mi e Clayton; Marsh Creek 45 Comment
  UCD102396  Ptelea crenulata Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Bald Ridge Trail. Bald Ridge. 860 Comment
  UC2062647  Ptelea crenulata Barbara Ertter with Steve Matson 2003-11-11 Contra Costa Mount Diablo State Park, Deer Flat Road on north side of Moses Rock Ridge. 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
  UC692115  Pteridium aquilinum var. pubescens Mary L. Bowerman 1930-8-24 426 Contra Costa lower trail w of stream Mitchell Canyon; Mt. Diablo 259 Comment
  CAS-BOT-BC421113  Pterostegia drymarioides Alice Eastwood 1915-5-30 4436 Contra Costa Mt. Diablo Comment
  CDA29027  Pterostegia drymarioides D. G. Kelch 2006-5-7 6 .155 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  UC1198069  Pterostegia drymarioides Joseph P. Tracy 1934-4-30 13191 Contra Costa near Lafayette 152 Comment
  UC6916  Pterostegia drymarioides W. L. Jepson 1891-5-23 Contra Costa Mt. Diablo Comment
  CDA33808  Pterostegia drymarioides D. G. Kelch 2010-5-15 10 .117 Contra Costa Mt. Diablo. Trail from Juniper Camp to Deer Flat. 0 Comment
  UCD92236  Puccinellia simplex Beecher Crampton 1968-3-27 8233 Contra Costa SE corner, ca. 3.5 miles south of Byron. Comment
  UC2028108  Pyracantha fortuneana Barbara Ertter with Christopher Baysdorfer 1998-5-10 16115 Contra Costa Lime Ridge Open Space northwest of Mount Diablo. Comment
  UC2027947  Pyrus communis Barbara Ertter 1997-9-7 15792 Contra Costa North side Mount Diablo, cabin site on Donner Creek, in persisting orchard. Comment
  CAS-BOT-BC104161  Quercus X morehus H. E. McMinn 82 Contra Costa N slope of Mt. Diablo near summit Comment
  UC691319  Quercus X morehus Mary L. Bowerman 1931-9-27 1046 Contra Costa n side North Peak (near Quicksilver Mine); Mount Diablo Comment
  CDA20041  Quercus X morehus T. Young 2002-9-2 s.n. Contra Costa San Francisco Bay Area; Small stand of 5-6 trees in northern Orinda surrounded by Q. lobata and Q. agrifolia. 0 Comment
  CAS-BOT-BC45658  Quercus agrifolia Walter Knight 1965-3-1 981 Contra Costa Antioch Dunes Comment
  JEPS37364  Quercus agrifolia W. L. Jepson Oct. 1909 3498 Contra Costa Moraga Ridge Comment
  JEPS37717  Quercus agrifolia W. L. Jepson 1907-4-26 2648 b Contra Costa Mt. Diablo Comment
  RSA758316  Quercus agrifolia Doug Goldman 2004-11-3 2923 Contra Costa South side of Marsh Creek, north side of Morgan Territory Road. 354 Comment
  UC1135337  Quercus agrifolia G. T. Nordstrom 1937-11-15 1412 Contra Costa 2.6 mi E.S.E. Round Valley 457 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
  CDA20380  Quercus agrifolia var. agrifolia P. Akers 2002-5-11 s.n.- 2 Contra Costa Northern California; Mt Diablo Summit Trail at water tank picnic area. 873 Comment
  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
  UC1481546  Quercus berberidifolia Neil Havlik 1980-5-15 918 Contra Costa Standard Oil Refinery, in a draw above asphalt plant Richmond Comment
  CDA31069  Quercus chrysolepis D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .232 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  SEINET14301648 Image available Quercus chrysolepis Robert A. Norris, John L. Inase 1981-1 4152 Contra Costa Near North Gate Rd., Mt Diablo; on dry SW-facing slope 716 Comment
  CAS-BOT-BC86643  Quercus douglasii Alice Eastwood 1923-5-4 11732 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC86648  Quercus douglasii John Thomas Howell 1926-3-7 1658 Contra Costa Mt. Diablo near toll gate Comment
  RSA573423  Quercus douglasii Joseph A. Ewan 1933-10-15 8028 Contra Costa Mount Diablo, south slope flat. 762 Comment
  UC691298  Quercus douglasii Mary L. Bowerman 1930-9-9 457 Contra Costa ne side North Peak; Mount Diablo Comment
  UCD56638  Quercus douglasii J. M. Tucker 1946-5-8 s.n. Contra Costa Mt. Diablo, along main road, above main gate. Comment
  RSA476581  Quercus douglasii H. de Forest 1930-4-13 s.n. Contra Costa Road through N end Diablo Range. 915 Comment
  CAS-BOT-BC86123  Quercus dumosa Mary L. Bowerman 1932-9-17 1584 Contra Costa Mount Diablo. Donner Canyon, west fork: Bank between forks 304 Comment
  POM301005  Quercus durata Mary L. Bowerman 1932-10-16 1632 Contra Costa Donner Canyon Trail. Comment
  UC691322  Quercus durata Mary L. Bowerman 1931-5-19 873 Contra Costa main e branch Donner Canyon; Mount Diablo 304 Comment
  UC691323  Quercus durata Mary L. Bowerman 1931-5-19 869 Contra Costa Donner Canyon trail Mount Diablo 274 Comment
  CAS-BOT-BC94291  Quercus garryana Mary L. Bowerman 1930-10-19 493 Contra Costa Fossil Ridge S of Garden of the Gods Comment
  UC5819  Quercus kelloggii H. P. Chandler 1900-3-24 Contra Costa Orinda Park Mount Diablo Region Comment
  UC691308  Quercus kelloggii Mary L. Bowerman 1931-9-27 1047 Contra Costa n side North Peak (Quicksilver Mine); Mount Diablo Comment
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Jan 15 2014
  UCD47071  Quercus palmeri J. M. Tucker 1981-4-25 4453 D Contra Costa California, Contra Costa County: Antonio Souza Ranch southwest of Byron (extended Section NW quarter Sec. 31, R3E, T1S, Mt. Diablo Meridian). 309 Comment
  UCD47102  Quercus palmeri J. M. Tucker 1981-4-25 4453 I Contra Costa California, Contra Costa County: Antonio Souza Ranch southwest of Byron (extended section NW quarter Sec. 31, R3E, T1S, Mt. Diablo Meridian). 309 Comment
  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
  JEPS104763  Quercus wislizeni John L. Morrison 1937-3-6 1973 Contra Costa S of Antioch Comment
  UC1135854  Quercus wislizeni R. C. Wilson 1935-3-28 154 Contra Costa Top of Mt. Diablo Mt. Diablo Quad. 1158 Comment
  UC5707  Quercus wislizeni W. H. Brewer 1861-9-25 843 Contra Costa Mount Diablo Comment
  UC691297  Quercus wislizeni Mary L. Bowerman 1933-9-30 2449 Contra Costa e end Meridian Flat; Mount Diablo 807 Comment
  UC691307  Quercus wislizeni Mary L. Bowerman 1931-10-5 1056 Contra Costa ridge e Rhine Canyon (about halfway-up slope, on spur at s end of ridge (also next canyon to e, which enters Curry Canyon at gate to Olafsons' ranch); Mount Diablo 487 Comment
  UCD17415  Quercus wislizeni E. Dean; with B. Ertter, J. M. Tucker, and K. Chaney 2000-9-10 651 Contra Costa California. Contra Costa County: City of El Sobrante; El Sobrante Ridge, upslope of the terminus of Heavenly Ridge Rd., junction of Heavenly Ridge Trail and Manzanita Trail. 213 Comment
  UC1135920  Quercus wislizeni var. frutescens R. W. Lundh 1933-3-4 209 Contra Costa 0.5 mi n Pinehurst; Concord Quad. 304 Comment
  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
  UC584417  Rafinesquia californica Univ. of Calif., Hort. Genetics 1937-1 564 Contra Costa Briones Hills Comment
  POM270022  Ranunculus aquatilis var. capillaceus Mary L. Bowerman 1931-4-4 662 Contra Costa Pool W of Turtle Rock (can be seen from top of rock) covering a considerable area of the bottom of the dried up pool Comment
  UC2029176  Ranunculus aquatilis var. subrigidus Barbara Ertter with Alan Prather 2003-6-7 18190 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, pond NE of main trailhead. Comment
  POM268431  Ranunculus californicus Lyman Benson 1931-3-18 2664 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 Comment
  UCD95957  Ranunculus californicus P. B. Kennedy 1916-5-11 s.n. Contra Costa Grand View Terrace; Richmond District. Comment
  JEPS60666  Ranunculus californicus W. L. Jepson 1923-4-22 9871 Contra Costa Mt. Diablo; deep canyon side Comment
  JEPS73327  Ranunculus canus Edward Lee 1935-3-10 1284 Contra Costa Donovan Road Kirker Pass ((w watershed of Kirker Creek)) Comment
  UC1126160  Ranunculus canus C. M. Belshaw 1936-5-12 2110 Contra Costa 3.7 mi ene Tassajero (Plot 31); Mt. Diablo Quadrangle 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
  UC2027988  Ranunculus canus Barbara Ertter 1998-5-3 16032 Contra Costa Pine Ridge summit of Wall Point Road at southwest base of Mount Diablo. Comment
  UC135556  Ranunculus canus var. canus Edward Lee Greene April, 1887 Contra Costa Antioch Comment
  POM268437  Ranunculus canus var. laetus Mary L. Bowerman 1931-3-8 563 Contra Costa W bank of Mitchell Canyon near mouth with oak and pines Comment
  CDA1152  Ranunculus hebecarpus D. G. Kelch, A. G. Murdock 2005-5-1 5 .188 Contra Costa Carquinez Strait; Crockett; Edwards Canyon. 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
  UC2029153  Ranunculus lobbii Barbara Ertter with Mary Bowerman 1995-5-7 14035 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton. Comment
  JEPS54990  Ranunculus muricatus W. L. Jepson 1918-6-5 7593 Contra Costa Donner Canyon Mt. Diablo Comment
  JEPS99975  Ranunculus muricatus G. Smick 2003-4-29 GAS 147 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1618351  Ranunculus muricatus Barbara Ertter, Chris Thayer 1993-5-7 11716 Contra Costa e of Tilden Park (1/2 mi n of Vollmer (=Bald)Peak in East Bay Municipal Utiliteis District land); East Bay Municipal Utiliteis District land 304 Comment
  POM300585  Ranunculus muricatus Mary L. Bowerman 1938-5-25 3629 Contra Costa Arroyo Del Cerro by N road Comment
  RSA85297  Ranunculus occidentalis var. ultramontanus F. W. Peirson 1925-7-1 6171 Contra Costa Wood borders, State Line, Lake Tahoe Comment
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Feb 10 2013
  SEINET11268201  Raphanus sativus Barbara Ertter 1998-6-12 16160 Contra Costa North Gate Road on west flank of Mount Diablo, dogleg in road above raches opposite Angel Kerley trail head.; 0 579 Comment
  CDA23628  Rhamnus alaternus D. G. Kelch 2007-9-8 7 .569 Contra Costa Carquinez Strait; Pinole Valley Park. Comment
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Apr 29 2013
  JEPS75497  Rhamnus californica P. F. Yorks 1975-5-31 424 Contra Costa ca 1.6 km s Bear Creek Road on Hampton Road in Hamption Natural Reserve (n of Briones Reservoir) 180 Comment
  UC692581  Rhamnus crocea Mary L. Bowerman 1930-6-22 360 Contra Costa Mitchell Canyon Mount Diablo Comment
  UC692599  Rhamnus tomentella subsp. tomentella Mary L. Bowerman 1933-5-21 2152 Contra Costa s of Curry Canyon (Grapevine Spring gulley, slightly above the spring); Mount Diablo Comment
  CAS-BOT-BC200697  Rhus aromatica Mary L. Bowerman 1935-5-30 3092 Contra Costa Eagle Point ridge 350 Comment
  JEPS111590  Rhus trilobata D. G. Kelch 2005-3-26 05 .98 Contra Costa Pinole Peak Fernandez Ranch. South side - road from Perreria Road to Pinole Peak Ridge. Rare shrub up to 1.5 ms 150 Comment
  UC2031402  Ribes amarum Barbara Ertter with David Gowen and Steve Matson 2007-3-17 18788 Contra Costa Huckleberry Botanic Regional Preserve in East Bay Hills above Montclair, dog-leg of Skyline Regional Trail at junction with trail from Pinehurst Road at base of canyon of upper San Leandro Creek Comment
  SD2125  Ribes californicum Earle Mulliken 1905-1-28 161 Contra Costa Wildcat CaA'on, Berkeley Hills. Comment
  CAS-BOT-BC92922  Ribes californicum var. californicum Earle Mulliken 1905-1-28 49 Contra Costa Wildcat Canon [Canyon], Berkeley Hills. Comment
  UC2027990  Ribes divaricatum var. pubiflorum Barbara Ertter 1998-4-19 16028 Contra Costa Tilden Regional Park, Wildcat Creek Trail to Jewel Lake. Comment
  UCSB26263  Ribes divaricatum var. pubiflorum Ketcham, A. 1968-3-25 Contra Costa South Park Drive at road to Boy's Camp; Tilden Regional Park Comment
  JEPS49338  Ribes malvaceum W. L. Jepson 1921-11-19 9514 Contra Costa halfway up to summit Mt. Diablo Comment
  JEPS79400 Image available Ribes malvaceum Edward Lee with C. Belshaw 1935-12-28 1701 Contra Costa w end Las Trampas Ridge 426 Comment
  UC1614322  Ribes malvaceum Charles M. Belshaw 1935-12-28 1422 Contra Costa Las Trampas Ridge, on trail above ranch house Las Trampas Ridge Comment
  UC570820  Ribes malvaceum Herbert L. Mason 1926-3-7 2708 Contra Costa Summit Mt. Diablo Comment
  UC2029050  Ribes malvaceum var. malvaceum Barbara Ertter with Linda Vorobik 2000-1-9 16887 Contra Costa Las Trampas Regional Wilderness in East Bay Hills west of Danville. Comment
  JEPS79394  Ribes menziesii Edward Lee with Annetta Carter 1936-5-24 2167 Contra Costa 10 mi from Marsh Creek Road; Mt. Diablo, Morgan Territory Comment
  JEPS97013  Ribes sanguineum var. glutinosum R. D. Stone 1981-1-31 264 Contra Costa Huckleberry Trail Oakland Hills, near Alameda-Contra Costa county line (NE of intersection of Skyline Blvd. and Snake Rd.) Comment
  RSA0019062  Ribes sanguineum var. glutinosum Joseph A. Ewan 1934-3-10 8650 Contra Costa 1.5 mi. below Orinda road bridge, Wildcat Canyon. Comment
  SBBG98261  Ribes sanguineum var. glutinosum J. A. Ewan 1934-3-10 8650 Contra Costa Wildcat Cyn, 1.5 mi below Orinda Rd bridge Comment
  UCSB26492  Ribes sanguineum var. glutinosum Keefe, Joseph 1967-3-20 Contra Costa along Huckleberry Trail; 0.5 mile east of Skyline boulevard; near intersection with Grizzly Park Boulevard; east of Berkeley 274 Comment
  CAS-BOT-BC362966  Rigiopappus leptocladus M. K. Curran 1884-5-1 36 Contra Costa Antioch Comment
  UC1727989  Romulea rosea var. australis Gregg Weber 1998-5-6 Contra Costa San Pablo Ridge trail Comment
  UC2062641  Rorippa curvipes Barbara Ertter with Jim Dunne, David Gowen, Lech Naumovich 2009-12-3 197801 Contra Costa Mudflats at upper (south) end of San Pablo Dam Reservoir northwest of Orinda. Comment
  CAS-BOT-BC74445  Rorippa curvisiliqua J. Bauer 1851-5-1 187 Contra Costa Ad mond Diablo [At 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
  UC2028024  Rorippa curvisiliqua Barbara Ertter 1997-9-14 15809 Contra Costa West side of Mount Diablo, ponds along Barbeque Terrace Road in upper Pine Canyon. Comment
  JEPS100080  Rorippa nasturtium-aquaticum S. O'Neil 2003-8-6 SEO 45 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CHSC116620  Rorippa palustris var. occidentalis Lowell Ahart; Josephine Guardino 2016-4-19 20771 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
  UC691165  Rosa californica Mary L. Bowerman 1930-8-24 438 Contra Costa by road Mount Diablo, Mitchell Canyon Comment
  JEPS45678  Rosa gymnocarpa W. L. Jepson 1894-10-1 13887 Contra Costa Moraga Valley Comment
  UC2027979  Rubus discolor Barbara Ertter, Mary Bowerman 1996-11-1 15393 Contra Costa North base of Mount Diablo, downstream from Mitchell Canyon parking lot. Comment
  JEPS112073  Rubus ulmifolius var. inermis A. G. Murdock 2004-5-28 307 Contra Costa Luzon 60 Comment
  CAS-BOT-BC158773  Rubus ursinus Walter Knight; Joanne Dean 1978-8-14 3167 Contra Costa 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
  JEPS75495  Rumex acetosella P. F. Yorks 1976-5-31 510 Contra Costa ca 1.4 km s Bear Creek Road (on Hampton Road in Hampton Road Natural Reserve, n of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  RSA0033845  Rumex conglomeratus Barbara Ertter 2000-7-16 17380 Contra Costa Diablo Foothills Regional Park, along Pine Creek between Castle Rock Recreation Area and flood-control checkdam. 106 Comment
  CAS-BOT-BC421624  Rumex crispus W. Knight; I. Knight 1977-5-22 s.n. Contra Costa Antioch Dunes. Comment
  CAS-BOT-BC421627  Rumex crispus Walter Knight; Joanne Dean 1978-8-14 3154 Contra Costa Browns Island. Comment
  CHSC116601  Rumex dentatus Lowell Ahart; Jpsephine Guardino 2016-4-19 20783 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. 1.4 miles northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  CAS-BOT-BC433479  Rumex fueginus Walter Knight; Irja Knight 1980-8-26 3804 Contra Costa At Hercules Comment
  UC2062666  Rumex maritimus Barbara Ertter with David Gowen 2006-10-1 18781 Contra Costa West side San Pablo Reservoir east of San Pablo Dam Road between Richmond and Orinda, south of marina. Comment
  UC692157  Rumex pulcher Mary L. Bowerman 1938-5-28 3644 Contra Costa Maple Spring, upper margin Mount Diablo Comment
  UC692158  Rumex salicifolius var. salicifolius Mary L. Bowerman 1938-6-14 3680 Contra Costa Canyon Nook Mount Diablo 670 Comment
  UC692209  Rumex salicifolius var. salicifolius Mary L. Bowerman 1935-10-26 3346 Contra Costa 2 rd mi e Mount Diablo west entrance; Mount Diablo 228 Comment
  JEPS100112  Rupertia physodes A. Langston 2003-6-12 AL 41 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS21987  Rupertia physodes G. Thomas Robbins 1958-5-4 3823 Contra Costa along Pinehurst Road on slopes above Upper San Leandro Reservoir (in hills e of Oakland) 228 Comment
  OBI12751  Rupertia physodes G. Thomas Robbins 1958-7-6 3890 Contra Costa Along Pinehurst Rd, on slopes above Upper San Leandro Reservoir, about 1/4 mi N of Alameda Co line 229 Comment
  JEPS111530  Ruppia maritima D. G. Kelch 2005-5-5 05 .214 Contra Costa Point Pinole - Giant Marsh Giant Salt Marsh 3 Comment
  JEPS127040  Sagina apetala Lowell Ahart, Josephine Guardino 2016-4-19 20774 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  UC2028181  Sagina decumbens subsp. occidentalis Barbara Ertter 1998-5-3 16037 Contra Costa Above SW fork of Pine Creek at southwest base of Mount Diablo. Comment
  CDA23458  Salicornia subterminalis R. L. Todd 1962-11-21 Contra Costa Old River Canal bridge. 0 Comment
  JEPS22092  Salicornia virginica G. Thomas Robbins 1958-7-19 3904 Contra Costa about 0.75 mi s Pt. San Pablo, Potrero San Pablo, Richmond; San Francisco Bay, Point Orient Comment
  RSA771186  Salicornia virginica Barbara Ertter, Elizabeth Neese 1988-10-15 7974 Contra Costa Salicornia marsh west of I-580 in El Cerrito, west side along Rydin Road north of Central Avenue. Comment
  SEINET1910270  Salicornia virginica Barbara Ertter, Elizabeth Neese 1988-1 7974 Contra Costa Salicornia marsh W of I-580 in El Cerrito, W side along Rydin Road N of Central Avenue. Comment
  CAS-BOT-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-BC129921  Salix bonplandiana Barrett Anderson 1987-4-29 3476 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD. 125 Comment
  UC407392  Salix exigua var. hindsiana Ira L. Wiggins 1930-4-18 4587 Contra Costa levee banks Jersey Isl. Comment
  UC691922  Salix exigua var. hindsiana Mary L. Bowerman 1936-5-6 3412 a Contra Costa Mitchell Canyon Mt. Diablo, Mitchell Canyon 152 Comment
  CAS-BOT-BC104085  Salix hindsiana Mary L. Bowerman 1936-5-6 3412 a Contra Costa Mitchell Canyon 152 Comment
  JEPS112251  Salix laevigata D. G. Kelch 2004-5-7 04 .198 Contra Costa Canada del Cierbo 40 Comment
  JEPS112255  Salix laevigata D. G. Kelch 2005-5-13 05 .244 Contra Costa Martinez South of oil refinery along Railroad tracks Comment
  UC691923  Salix laevigata Mary L. Bowerman 1933-5-21 2162 a Contra Costa stream bed immediately below thimbleberry patch in Sulphur Spring fork; Mt. Diablo, Sulphur Spring Canyon Comment
  CAS-BOT-BC125142  Salix lasiandra var. lasiandra W. W. Mott 1905-3-11 s.n. Contra Costa unspecified 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
  JEPS77014  Salix lasiolepis Robert M. Lloyd 1963-3-17 2141 Contra Costa 0.5 mi e of intersection of Grizzly Peak Rd. and Skyline Drive (on Skyline (across from 7090 Skyline), Huckleberry trail) Comment
  POM300610  Salix lasiolepis Mary L. Bowerman 1933-4-9 1830 Contra Costa Donner Canyon, W fork. Below Twin Peaks. Mt. Diablo. Comment
  UC692063  Salix lasiolepis Mary L. Bowerman 1932-11-11 1638 Contra Costa gully 250 ft below Moses Rock Spring; Mount Diablo Comment
  CAS-BOT-BC129551  Salix lasiolepis var. lasiolepis Alice Eastwood 1914-2-24 3729 Contra Costa Antioch Comment
  CAS-BOT-BC129558  Salix lasiolepis var. lasiolepis Alice Eastwood 1915-6-21 4725 Contra Costa San Leandro Comment
  CAS-BOT-BC129562  Salix lasiolepis var. lasiolepis Alice Eastwood 1914-2-24 3728 Contra Costa Antioch Comment
  RSA666468  Salpichroa origanifolia Barbara Ertter 1991-5-12 9818 Contra Costa Point Isabel Regional Shoreline in SW corner of El Cerrito, on San Francisco Bay. Comment
  UCR263552  Salsola soda Barbara Ertter 1990-9-30 9659 Contra Costa San Francisco Bay Region, Point Pinole Regional Shoreline on San Pablo Bay, north Richmond; on N edge of park 2 Comment
  CAS-BOT-BC180753  Salsola tragus Walter Knight; Joanne Dean 1978-8-14 3114 Contra Costa Browns Island Comment
  JEPS79398  Salsola tragus Edward Lee with Annetta Carter 1935-8-17 1635 Contra Costa Antioch sand dunes Comment
  SEINET13947331 Image available Salvia columbariae Lewis S. Rose 1935-1 35168 Contra Costa Mt. Diablo Comment
  JEPS62735  Salvia mellifera W. L. Jepson 1899-4 14949 Contra Costa Las Trampas Ridge Comment
  SEINET5570354  Salvia mellifera H. S. Gentry 1931-1 49 Contra Costa Collected near Buckle Point Mt. Diablo. Comment
  UC2055610  Salvia spathacea Mary Bowerman 1972-5-6 s. n. Contra Costa Pine Canyon, 1/4 mile up canyon from lowest reservoir. Comment
  RSA248711  Sambucus microbotrys B. C. Templeton 1962-6-10 s.n. Contra Costa Mt Diablo. Comment
  UCD150884  Sambucus nigra subsp. caerulea James A. Neilson Jr. 1972-11-9 s.n. Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 1 Comment
  UCD164883  Sambucus nigra subsp. caerulea Henry House 1995-5-20 1995- 12 Contra Costa Adjacent to Walnut Blvd., approximately 1.25 km south of Marsh Creek Road. 30 Comment
  JEPS260  Sanicula bipinnata W. L. Jepson 1923-4-22 9870 Contra Costa Mt. Diablo Comment
  OBI70557  Sanicula bipinnata D. G. Kelch 2007-3-24 7 .088 Contra Costa Ozol; between Port Costa and Martinez, near old brick quarry Comment
  UC1123182  Sanicula bipinnatifida C. M. Belshaw 1936-5-12 2107 Contra Costa 5 mi s of Round Valley 487 Comment
  UC1555367  Sanicula crassicaulis Jerry Powell 1988-4-8 1527 Contra Costa west Richmond, Point Molate Point Molate; Richmond, Point Molate Comment
  UC1948950  Sanicula crassicaulis William J. Ferlatte, L. Maynard Moe 1970-4-27 1226 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC73292  Sanicula crassicaulis Harley P. Chandler 1901-4-4 952 Contra Costa Region of Mount Diablo, Pine Canyon Pine Canyon; Region of Mount Diablo, Pine Canyon 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
  JEPS98659  Sanicula tuberosa O. Gomez, L. Schulties and P. Vargas 1996-5-29 43 PV96 Contra Costa trail between Mt. Diablo Peak and North Peak Mt. Diablo State Park Comment
  SEINET238194 Image available Sasa borealis Beecher Crampton 1966-10-18 7815 Contra Costa CULTIVATED ; Kensington Berkeley Hills Blake Garden UC Berkeley Dept. of landscape architecture. Comment
  JEPS75491  Satureja douglasii P. F. Yorks 1975-7-5 469 Contra Costa on Hampton Road ca 1.8 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Reserve Comment
  UC1057454  Scandix pecten-veneris G. Thomas Robbins 1937-4-25 138 Contra Costa e of La Vista Comment
  UC1949225  Scandix pecten-veneris Barbara Ertter 1991-6-1 10072 Contra Costa Las Trampas Regional Wilderness in hills W of Danville; Rocky Ridge Trail ca 1 mi from parking lot Comment
  CAS-BOT-BC111376  Schoenoplectus acutus var. occidentalis Virginia I. Dains; Walter Knight 1986-8-8 5479 Contra Costa Growing in tidal area, Jct Rock S1 & Werner Cut. Comment
  UC2070487  Schoenoplectus acutus var. occidentalis Barbara Ertter 2002-11-11 18077 Contra Costa Round Valley Regional Preserve east of Mount Diablo. 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
  CDA39113  Scirpus americanus A. G. Murdock 2004-6-4 323 Contra Costa Carquinez Strait Region; Pecheco Marsh. Comment
  JEPS111886  Scirpus cernuus D. G. Kelch 2003-8-13 03 .120 Contra Costa Martinez Marsh 0 Comment
  CDA39151  Scirpus maritimus A. G. Murdock 2004-5-28 300 Contra Costa Carquinez Strait; Luzon. Comment
  UC971682  Scirpus maritimus Leo Koch 1940-6-5 1004 a Contra Costa near highway saline flat two mi s San Rafael ferry dock; s of San Rafael ferry dock Comment
Read comments
Apr 14 2009
  CDA39144  Scirpus microcarpus D. G. Kelch 2003-4-13 3 .137 Contra Costa Carquinez Strait; Pinole Creek. Comment
  UC691603  Scrophularia californica Mary L. Bowerman 1933-4-15 1855 Contra Costa canyon s of Arroyo del Cerro Mt Diablo Comment
  UC1606441  Scutellaria californica Barbara Ertter 1993-6-25 11905 Contra Costa 1/4 mi s of Tilden miniature steam trains (head of Siesta Valley, Skyline Trail); Oakland-Berkeley Hills, Skyline Trail, Siesta Valley 457 Comment
  UC1713668  Scutellaria tuberosa unknown 1027 Contra Costa Walnut Creek Comment
  UC25837  Scutellaria tuberosa unknown 1037 Contra Costa Walnut Creek Comment
  RSA0055044  Scutellaria tuberosa Jim Shevock 1971-4-7 916 Contra Costa Mt. Diablo St. Park. 548 Comment
  UC11261  Sedum spathulifolium Brewer 842 Contra Costa Mt. Diablo Summit Comment
  JEPS37619  Senecio aronicoides W. L. Jepson 1923-6-10 9992 Contra Costa Upper Marsh Creek Mt. Diablo Comment
  CAS-BOT-BC327442  Senecio flaccidus var. douglasii Peter Rubtzoff 1951-10-7 824 Contra Costa Along lower San Joaquin River east of Antioch Comment
  UC1584828  Senecio hydrophilus Jerry Powell 1990-8-29 1588 Contra Costa Antioch National Wildlife Refuge Comment
  UC407393  Senecio vulgaris Ira L. Wiggins 1930-4-18 4597 Contra Costa n end Jersey Island; n end Jersey Island Comment
  CAS-BOT-BC364553  Senecio vulgaris Ira L. Wiggins 1930-4-18 4597 Contra Costa Levee, n. end of Jersey Island 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
  JEPS48264  Sequoia sempervirens K. D. Jones 1908-4-5 Contra Costa Redwood Peak Comment
  RSA572195  Sequoia sempervirens L. S. Rose 1934-1-29 34009 Contra Costa Redwood Canyon Comment
  CAS-BOT-BC80263  Sequoia sempervirens Paul F. Covel 1938-2-20 s.n. Contra Costa Pinehurst Comment
  HSC2615  Sequoia sempervirens D. A. Shally 1965-4-18 35 Contra Costa Canyon at Canyon Store Comment
  CDA37437  Sesbania punicea D. G. Kelch, Mike Perlmutter 2011-9-23 11 .764 Contra Costa Antioch. Dow Wetlands. Comment
  CDA38611  Sesbania punicea R. Fonseca 2012-8-14 PDR# 1641171 Contra Costa Pittsburg; Columbia Street near East 11th Street. 0 Comment
  UC1614106  Sherardia arvensis Charles M. Belshaw 1935-6-24 789 Contra Costa ca. 1/2 mi. e. Grizzly Peak (Bald Peak); Bald Peak 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
  UC2032814 Image available Sidalcea malviflora subsp. laciniata Doran, Andrew Scott 2012-3-20 684 Contra Costa North end of Brooks Island along ridge, cleared area northwest of caretakers residence. Comment
  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
  JEPS111786  Silene gallica D. G. Kelch 2004-5-7 04 .188 Contra Costa Ca ada del Cierbo Ca ada del Cierbo 40 Comment
  JEPS111788  Silene gallica D. G. Kelch 2005-3-24 05 .57 Contra Costa Point Pinole: Southern Pt. Pinole 3 Comment
  JEPS100172  Silybum marianum G. Smick 2003-5-15 GAS 193 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  SEINET10760843  Silybum marianum Bonnie C. Templeton 1962-6-24 Templeton s.n. Contra Costa on the road to 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
  UC1126829  Sinapis arvensis C. M. Belshaw 1936-5-13 2120 Contra Costa se of Deer Valley Deer Valley 91 Comment
  UC691255  Sinapis arvensis Mary L. Bowerman 1931-4-11 710 Contra Costa Ridge e of lower Pine Canyon (Mount Diablo); Mount Diablo Comment
  UC691256  Sisymbrium officinale Mary L. Bowerman 1935-5-16 2987 Contra Costa Mount Diablo, Russelman Park Russelman Park; Mount Diablo, Russelman Park 381 Comment
  CDA21559  Sisyrinchium bellum D. G. Kelch, D. A. Weinstein 2008-4-25 8 .075 Contra Costa Alvarado Park (west end of Wildcat Canyon Park) on north-facing hillside above Hindu temple in mixed scrub/grassland. Comment
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Jan 7 2016
  UC2028288  Sisyrinchium bellum Barbara Ertter 1998-6-20 16232 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Alkali Pond at Wiget Lane entrance. Comment
  UC692093  Sisyrinchium bellum Mary L. Bowerman 1931-3-14 573 Contra Costa e side Cave Point; Mount Diablo Comment
  SEINET4061707  Sisyrinchium bellum M. W. Garcia 1960-1 60030 Contra Costa Collected on back of Tilden Park. 60 Comment
  JEPS77013  Smilacina stellata Robert M. Lloyd 1963-3-17 2140 Contra Costa 0.5 mi e intersection of Grizzly Peak Rd. and Skyline Drive (on Skyline (across from 7090 Skyline)); Huckleberry Trail Comment
  CDA20181  Solanum elaeagnifolium A. Niang 2003-7-9 PDR 1406328 Contra Costa San Francisco Bay Area; Brentwood. 0 Comment
  CAS-BOT-BC83606  Solanum umbelliferum J. McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC156306  Solanum umbelliferum anonymous 1900-3-26 s.n. Contra Costa Oakley. 6 m. E. of Antioch Comment
  POM215197  Solanum umbelliferum D. D. Keck 1933-11-2 2619 Contra Costa 1 mile SE of Oakley. Comment
  SEINET5760775  Solanum umbelliferum Lewis S. Rose 1941-3-13 41026 Contra Costa Marsh Creek, 5 miles east of Clayton Comment
  SEINET6186041  Solanum umbelliferum P. Del Monte 1976-3-28 s.n. Contra Costa Morgan Territory Rd., 1 miles north of Curry Creek Park 122 Comment
  JEPS100171  Solidago velutina subsp. californica A. Langston 2003-6-19 AL 47 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CHSC116656  Soliva sessilis Lowell Ahart; Josephine Guardino 2016-4-19 20768 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the sides of the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  UC2028175  Sonchus asper subsp. asper Barbara Ertter 1998-5-3 16044 Contra Costa Pine Canyon/Stage Road upstream from Dusty Road junction, southwest flank of Mount Diablo. Comment
  CHSC23344  Sonchus oleraceus Willis Ball 1975-3-2 468 Contra Costa Contra Loma Regional Park. In area #5. On the w side of a hill in area #5 ca. 10 yds. e of water on e side of lake. 32 Comment
  UC337971  Sorghum halepense unknown Contra Costa John Muir's yard Martinez Comment
  UCD92659  Sorghum halepense Beecher Crampton 1970-3-10 8540 Contra Costa Vasco Road S of Brentwood. Comment
  CAS-BOT-BC389917  Spergula arvensis R. E. Frenkel 1964-2-22 361 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  CHSC23224  Spergularia macrotheca Carol G. Getzinger 1964-4-26 50 Contra Costa Near San Francisco Bay, Richmond, at the University of California Richmond Field Station; in front of Building 128; field. 4 Comment
  UCD33429  Spergularia macrotheca var. longistyla Beecher Crampton 1968-3-27 8237 Contra Costa Contra Costa County, S.E. corner of County, ca. 3.5 miles south of Byron. Comment
  RSA518738  Spergularia macrotheca var. longistyla Barbara Ertter 1989-4-5 8113 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  UC1584823  Spergularia macrotheca var. macrotheca Jerry Powell 1987-7-14 1499 Contra Costa Point Molate Beach; on sandstone bluff Comment
  SFV1240  Spergularia marina J. M. Tucker 1963-4-12 3687 Contra Costa West side of Holey Road, 3 miles southeast of Byron. Comment
  JEPS99546  Spergularia rubra Mary Bowerman 1975-4-19 Contra Costa Mount Diablo, Mitchell Canyon. 256 Comment
  UC1818936  Spergularia rubra Barbara Ertter, Mary Bowerman et al. 1995-5-7 14043 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, damp road bed, clayey, in grassy flat south of pond, near edge of blue oak forest. Comment
  UC2029011  Spergularia rubra Barbara Ertter with Dan Norris 1999-11-14 16852 Contra Costa Black Diamond Mines Regional Preserve, south of parking area for Somersville townsite. Comment
  UC2028104  Stachys ajugoides var. rigida Barbara Ertter with Christopher Baysdorfer 1998-5-10 16123 Contra Costa West side Lime Ridge Open Space northwest of Mount Diablo. Comment
  UC25936  Stachys ajugoides var. rigida W. L. Jepson Contra Costa Fish Ranch Comment
  CDA35678  Stachys bullata Deviney 2011-12-9 PDR# 1641237 Contra Costa Orinda; Tilden Botanical Garden/Nursery, Wildcat Canyon Road. 0 Comment
  JEPS36203  Stebbinsoseris heterocarpa W. L. Jepson 1921-5-22 9215 Contra Costa Half way up Mt. Diablo. Comment
  UC651293  Stellaria media Ira L. Wiggins 1930-4-18 4598 Contra Costa n end Jersey Island Comment
  CAS-BOT-BC386943  Stellaria media Ira L. Wiggins 1930-4-18 4598 Contra Costa N. end of Jersey Island Comment
  RSA0027412  Stenotaphrum secundatum Barbara Ertter, Richard K. Rabeler, Tony Morosco 1997-6-10 15669 Contra Costa Martinez Regional Shoreline, south edge of Carquinez Strait. On path to bridge. Comment
  UC2028016  Stephanomeria elata Barbara Ertter 1997-9-14 15819 Contra Costa Southwest side of Mount Diablo, Wall Point Road on open sandstone ridge northwest of Wall Point/ Comment
  SBBG42912  Stephanomeria exigua subsp. coronaria L. D. Gottlieb 1969-11-2 6959 Contra Costa E of Antioch, W of Kaiser Gypsum Plant at Minaker and Wilbur Rds Comment
Read comments
Feb 12 2013
  UC1394166  Stephanomeria exigua subsp. coronaria L. D. Gottlieb 1969-11-2 6959 Contra Costa e of Antioch (w of Kaiser Gypsum Plant, at Minaker and Wilbur Roads) Comment
  SEINET7883496 Image available Stephanomeria virgata Lewis S. Rose 1938-1 38308 Contra Costa Marsh Creek, 6 mi. e. of Clayton 152 Comment
  RSA0029779  Stephanomeria virgata subsp. pleurocarpa Barbara Ertter 2000-7-29 17439 Contra Costa Donner Basin on north side of Mount Diablo, opening on lower end of Middle Trail between Meridian Ridge Road and first stream crossing. 366 Comment
  UC2028380  Stipa lepida Barbara Ertter 1998-6-20 16243 a Contra Costa Shell Ridge Open Space on NW side of Mount Diablo,below picnic ground at Old Borges Ranch Comment
  UC2070623  Stipa lepida Barbara Ertter 2002-5-11 17847 b Contra Costa Southwest base of Mount Diablo, lower end of Summit Trail in Dan Cook Canyon ca. half mile from South Gate Road. Comment
  SEINET10926660  Stipa pulchra Frank W. Gould 1941-4-20 Gould 1281 Contra Costa Coastal bluffs near Richmond, associated with Melica californica. Comment
  UC1492706  Streptanthus albidus subsp. peramoenus Freed W. Hoffman 1949-4-16 2762 Contra Costa 2 mi inside North Gate of Mt. Diablo State Park; Mt. Diablo 228 Comment
  UC402742  Streptanthus hispidus H. M. Hall 1916-5-31 10139 Contra Costa w side Mt. Diablo 1097 Comment
  UC2028416  Stuckenia striata Barbara Ertter with Brad Olson, Dianne Lake, Lynne Hosley and A. Youngson 1991-10-20 10866 Contra Costa Dow Wetlands Preserve, just W of Antioch marina Comment
  CAS-BOT-BC375966  Stylocline gnaphaloides Brandegee No date on label s.n. Contra Costa Antioch Comment
  JEPS51558  Stylomecon heterophylla W. L. Jepson 1918-6-3 7589 Contra Costa Donner Canyon Mt. Diablo; , Donner Canyon 685 Comment
  RSA135424  Stylomecon heterophylla Volney Rattan 1883-04 s.n. Contra Costa Martinez. Comment
  UC614558  Stylomecon heterophylla L. Constance, J. L. Morrison 1938-4-5 2193 Contra Costa nw base Mount Diablo (6 mi se of Walnut Creek); Coast Ranges, nw base of Mount Diablo 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
  UC635478  Stylomecon heterophylla H. L. Mason 1928-4-1 4271 Contra Costa hills n Mount Diablo (canyon back of Pittsburg); hills n of Mount Diablo Comment
  CAS-BOT-BC422906  Stylomecon heterophylla W. W. Carruth 1900-5-1 s.n. Contra Costa Moraga Valley Comment
  CAS-BOT-BC422919  Stylomecon heterophylla A. A. Heller 1928-4-15 14510 Contra Costa Along the San Joaquin River at Antiock [Antioch] Comment
  RSA217241  Stylomecon heterophylla D. E. Breedlove 1970-4-18 17430 Contra Costa At the north edge of Lafayette above Laurel Drive 244 Comment
  OBI9066  Styrax redivivus Neil Havlik 1968-5-19 200 Contra Costa In cultivation, Tilden Botanical Garden, Charles Lee Tilden Regional Park, E of Berkeley Comment
  CDA9506  Suaeda nigra D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .233 Contra Costa Byron Airport. Comment
  SEINET4172257  Suaeda nigra J. B. Davy s.n. Contra Costa Mount Diablo, Sivermore Pass Comment
  UC691759  Symphoricarpos mollis Mary L. Bowerman 1930-6-18 352 Contra Costa w side, little below summit Meridian Peak; Mount Diablo Comment
  UC2046323  Symphyotrichum lanceolatum var. hesperium Barbara Ertter 2000-9-2 17520 Contra Costa Sobrante Ridge Preserve in hills southeast of El Sobrante, north of trailhead from Heavenly Ridge entrance. Comment
  JEPS41054  Symphyotrichum subspicatum Rimo Bacigalupi and L. R. Heckard 1965-5-11 9079 Contra Costa On rolling upper slopes of Brooks Island, mostly gently north and east exposures. Comment
  JEPS99582  Symphyotrichum subspicatum Mary Bowerman 1993-11-8 Contra Costa Mount Diablo. by tributary of Pine Creek southerly form just east of Pine Pond; North of tiny pond shown on MDIA map, 4th edition. (NW of Wall Pt. road junction) 243 Comment
  UC892918  Symphyotrichum subulatum Lewis S. Rose 1938-10-28 38312 Contra Costa Byron 3 Comment
  UCD159501  Symphyotrichum subulatum var. parviflorum D. S. Park 2010-9-11 250 -2 Contra Costa Waterfront Rd. Growing along roadside. Disturbed. Wet. 5 Comment
  CAS-BOT-BC99396  Symphyotrichum subulatum var. parviflorum W. L. Jepson 1891-9-16 s.n. Contra Costa at New Town landing, Lower Sacramento River Comment
  JEPS102017  Taeniatherum caput-medusae Bob Case 2001-10-2 Contra Costa Diablo Foothills Regional Park N of entrance to Castle Rock Recreation Area on W side of Castle Rock Road, just S of power line, mouth of Pine Canyon Comment
  CDA33665  Tamarix parviflora Wil Schaub 2011-4-12 PDR# 1645187 Contra Costa Brentwood: Camino Diablo & Vasco Road. 0 Comment
  HSC6267  Taraxacum officinale Greg Bos 1963-3-9 38 Contra Costa 5712 San Jose Ave. Richmond 61 Comment
  UC1084407  Taraxia ovata G. Thomas Robbins 1937-4-17 115 Contra Costa slopes near Point Richmond Comment
  UC1819074  Tetragonia tetragonoides Barbara Ertter, Drew Hansen 1995-3-28 13935 Contra Costa Chevron oil refinery in northwest Richmond off of Castro St., south of Wildcat Creek Comment
  UC20472  Tetrapteron graciliflorum J. Burtt Davy 1895-4-7 904 Contra Costa Antioch Comment
  UC329929  Tetrapteron graciliflorum J. G. Lemmon Apr. 1878 242 Contra Costa side Diablo Comment
  UC9701  Thalictrum fendleri var. polycarpum J. Burtt Davy 1895-4-13 1010 Contra Costa near San Pablo Creek Comment
  RSA146152  Thinopyrum ponticum T. C. Fuller 1961-9-13 7001 Contra Costa Hwy J4, ca. 4 mi. s.e. of Byron Comment
  CAS-BOT-BC88249  Thysanocarpus curvipes Alice Eastwood 1923-5-4 11702 Contra Costa Mount Diablo. Comment
  UC1543094  Thysanocarpus curvipes Donald G. Nelson 1937-3-30 465 Contra Costa on bank of creek along Marsh Creek Highway about halfway between Clayton and Byron; along Marsh Creek Highway Comment
  CAS-BOT-BC88246  Thysanocarpus curvipes Alice Eastwood 1914-2-24 3737 Contra Costa Anticoch. Comment
  CAS-BOT-BC88247  Thysanocarpus curvipes Alice Eastwood 1914-2-24 3738 Contra Costa Anticoch. Comment
  CAS-BOT-BC88255  Thysanocarpus curvipes John Thomas Howell 1934-4-8 11822 Contra Costa Marsh Creek Road southwest of Brentwood. Comment
  JEPS54189  Thysanocarpus curvipes Linda Gehringer 1914-3 Contra Costa Brentwood; Sect. 21 Comment
  POM143757  Thysanocarpus laciniatus C. F. Baker 1903-4-28 2809 Contra Costa Mitchell s Canyon, Mt. Diablo. Comment
  UC1084405  Toxicodendron diversilobum G. Thomas Robbins 1937-4-17 118 Contra Costa near Point Richmond Point Richmond Comment
  CAS-BOT-BC172938  Toxicodendron diversilobum B. Lacoste 1920-10-1 s.n. Contra Costa On hill slope by Lake Aliso Comment
  SEINET928989  Toxicodendron diversilobum H. S. Gentry 1931-1 56 Contra Costa Collected on Mt. Diablo near Buckle Point. Comment
  CDA8354  Tragopogon porrifolius D. G. Kelch, A. G. Murdock 2003-4-1 03 .093-B Contra Costa Carquinez Strait; Crockett. E bound entrance to Carquinez Bridge. Comment
  JEPS100167  Tragopogon porrifolius G. Smick 2003-5-6 GAS 166 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS107101  Tragopogon porrifolius Barbara Ertter 1991-5-12 9812 Contra Costa Point Isabel Regional Shoreline in SW corner of El Cerrito; along old railroad right-of-way between San Francisco Bay and Salicornia marsh. Comment
  JEPS65687  Trifolium albopurpureum W. L. Jepson 1923-4-22 9860 Contra Costa Mount Diablo Comment
  CDA33823  Trifolium albopurpureum D. G. Kelch 2010-5-15 10 .121 Contra Costa Mt. Diablo. Trail from Juniper Camp to Deer Flat. 0 Comment
  RSA14951  Trifolium albopurpureum L. S. Rose 1935-5-16 35174 Contra Costa Mt. Diablo Comment
  UC555621  Trifolium albopurpureum H. L. Mason 1929-3-29 5130 Contra Costa 2 mi above Clyton Rd (Marsh Creek Rd) Comment
  UC630749  Trifolium albopurpureum var. dichotomum A. A. Heller 1908-4-17 8903 Contra Costa 3 mi s Antioch (hills) Comment
  UC16604  Trifolium albopurpureum var. olivaceum W. H. Brewer 1862-5-19 1111 Contra Costa n Kirker Pass Comment
  UC1818894  Trifolium bifidum var. bifidum Barbara Ertter, Mary Bowerman et al. 1995-5-7 14066 Contra Costa Three-Springs Creek, small serpentine patch at road junction, Comment
  UC85320  Trifolium bifidum var. bifidum Katharine Brandegee 1907-5-5 Contra Costa beside Antioch and Marsh Creek Comment
  UC2070462  Trifolium bifidum var. bifidum Barbara Ertter 2000-5-14 16998 a Contra Costa Lower Donner Canyon on north side of Mount Diablo. Comment
  JEPS111083  Trifolium campestre Lee Echols 2003-4-22 s.n. Contra Costa S. of Lark Drive in E portion of grassland W of EPA building within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond 15 Comment
  CDA29796  Trifolium ciliolatum D. G. Kelch, Troy MacGregor 2009-5-1 9 .265 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  JEPS100111  Trifolium ciliolatum G. Smick 2003-5-8 GAS 184 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1607585  Trifolium ciliolatum Barbara Ertter 1991-6-1 10077 Contra Costa w Danville (in hills at n end of Rocky Ridge Trail); Las Trampas Regional Wilderness 548 Comment
  UC692256  Trifolium ciliolatum Mary L. Bowerman 1933-5-2 1939 Contra Costa below Pioneer Camp; Mount Diablo 762 Comment
  RSA135400  Trifolium ciliolatum Volney Rattan s.n. Contra Costa Alhambra Valley Comment
  POM313531  Trifolium depauperatum var. amplectens P. B. Kennedy 1929-4-25 10245 Contra Costa Briones Valley, Marsh Creek road. Comment
  RSA349410  Trifolium depauperatum var. amplectens L. S. Rose 1941-3-27 41068 Contra Costa 2 mi. w. of Byron 61 Comment
  UC2070477  Trifolium depauperatum var. amplectens Barbara Ertter 2003-3-28 18121 Contra Costa Round Valley Regional Preserve, Fox Trail ca 1/8 mile west of junction with valley trail. Comment
  JEPS2905  Trifolium depauperatum var. depauperatum E. L. Greene April, 1884 Contra Costa Byron Comment
  UCSC011137  Trifolium depauperatum var. laciniatum R. Morgan 2015-4-11 6740 Contra Costa Byron Comment
  JEPS68976  Trifolium depauperatum var. truncatum Edward Lee 1935-3-29 1310 Contra Costa e Kirker Pass (Donovan Rd, w of Kirker watershed) Comment
  SEINET7096815  Trifolium depauperatum var. truncatum A. G. Vestal 1985-4-1 s.n. Contra Costa Ca. 1.9 miles west of Byron on the Camino Diablo Road. NAD27, 37? deg. 51' 45ao, -121?_ 40' 26ao (converted to WGS84 decimal degrees) Comment
  UC1607665  Trifolium depauperatum var. truncatum Barbara Ertter with Michelle Seidl 1992-3-14 10921 Contra Costa E of Mount Diablo; Morgan Territory Regional Preserve Comment
  UC555354  Trifolium depauperatum var. truncatum H. L. Mason 1929-4-25 5208 Contra Costa Marsh Creek Rd Comment
  UC692685  Trifolium depauperatum var. truncatum Mary L. Bowerman 1935-4-12 2818 Contra Costa 2 mi from entrance (West (North) Rd); Mount Diablo 259 Comment
  RSA0027920  Trifolium depauperatum var. truncatum Barbara Ertter 1998-4-4 15957 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, summit of northwestern-most ridge. Comment
  UC2028948  Trifolium depauperatum var. truncatum Barbara Ertter 2003-4-9 18143 Contra Costa Shell Ridge Open Space on west base of Mount Diablo, Upper Buck Trail on SW side of Deer Hill. 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
  UC2028949  Trifolium fragiferum Barbara Ertter 2000-7-16 17390 Contra Costa lower Pine Creek in Diablo Foothills Regional Park. Comment
  JEPS65864  Trifolium fucatum W. L. Jepson 1896-5-29 13720 Contra Costa Wild Cat Creek Berkeley Comment
  UC70194  Trifolium fucatum J. Burtt Davy 1898-5-1 Contra Costa Region of Mount Diablo, Danville Danville; Region of Mount Diablo, Danville Comment
  CDA29533  Trifolium glomeratum D. G. Kelch, Troy MacGregor 2009-5-1 9 .287 Contra Costa Carquinez Strait; Fernandez Ranch in valley bottom along Christie Rd. Comment
  UC692664  Trifolium gracilentum Mary L. Bowerman 1935-4-12 2817 Contra Costa 2 mi from entrance (West Rd); Mount Diablo 259 Comment
  UC692678  Trifolium gracilentum Mary L. Bowerman 1935-4-26 2908 Contra Costa w Indian Ceremonial Springs; Mount Diablo 1005 Comment
  CDA27955  Trifolium gracilentum var. gracilentum D. G. Kelch, A. G. Murdock 2005-4-15 5 .151 Contra Costa Carquinez Strait Region; Rodeo Creek. EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump). Comment
  JEPS65908  Trifolium gracilentum var. gracilentum W. L. Jepson 1923-4-22 9858 Contra Costa Mt. Diablo Comment
  UC2028325  Trifolium incarnatum Barbara Ertter with Richard K. Brummitt 1998-5-13 16142 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, road from Somersville Road to south leg of Loughler Loop Trail. Comment
  UC555606  Trifolium macraei H. L. Mason 1928-4-13 4304 Contra Costa Richmond waterfront Comment
  JEPS100106  Trifolium microcephalum G. Smick 2003-5-1 GAS 164 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC16618  Trifolium microcephalum W. H. Brewer 1862-4-30 1020 Contra Costa Camp 69 Walnut Creek Comment
  UC692643  Trifolium microcephalum Mary L. Bowerman 1935-4-19 2871 Contra Costa ca 7 mi w entrance (Northgate) (by rd, ridge w of the power poles, above the rd junction); Mount Diablo 670 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
  UC16753  Trifolium obtusiflorum W. H. Brewer 1862-4-30 1005 Contra Costa Camp 69 Walnut Creek Comment
  UC692639  Trifolium obtusiflorum Mary L. Bowerman 1935-5-25 3077 Contra Costa Rhine Canyon Mount Diablo (side of gully containing streamlet) 914 Comment
  UC2028985  Trifolium oliganthum Barbara Ertter 2000-5-14 17010 Contra Costa Donner Canyon on north side of Mount Diablo, SW end of Falls Trail between Middle Trail and Donner Creek crossing. Comment
  CDA29549  Trifolium subterraneum D. G. Kelch, Troy MacGregor 2009-5-1 9 .283 Contra Costa Carquinez Strait; Fernandez Ranch in valley bottom along Christie Rd. Comment
  CAS-BOT-BC26494  Trifolium triflorum M. K. Curran 1883-1-1 s.n. Contra Costa Near Mt. Diablo Comment
  SJSU5771  Trifolium variegatum C. O. Dudley 1966-4-16 Contra Costa Reliez Valley, Briones Hills N of Lafayette Comment
  CHSC20695  Trifolium willdenovii Robert A. Schlising 1962-4-7 2148 Contra Costa Coastal Range. Along roads near Antioch Reservoir. Comment
  JEPS100108  Trifolium willdenovii G. Smick 2003-3-25 GAS 81 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1543244  Trifolium willdenovii Donald G. Nelson 1937-3-30 474 Contra Costa s Byron (on rd to Tracy along rr tracks paralleling hwy) Comment
  UC867018  Trifolium willdenovii Alice Eastwood 1915-5-30 4467 Contra Costa Mt. Diablo Comment
  RSA517735  Trifolium willdenovii Donald G. Nelson 1937-3-30 474 Contra Costa Railroad tracks paralleling the highway south of Byron on road to Tracy Comment
  CAS-BOT-BC451764  Triglochin maritima Walter Knight; Joanne Dean No date on label 3131 Contra Costa Browns Island. Comment
  CAS-BOT-BC451964  Triglochin striata Walter Knight; I. Knight; J. T. Howell; E. McClintock; S. Rae; B. Doyle 1978-9-5 3213 Contra Costa Botany Cove, Browns Island. Comment
  UC2028290  Trillium chloropetalum Barbara Ertter with Dan Norris 1998-6-18 16227 Contra Costa Junction of W Fork Sycamore Creek (= Madrone Canyon) and Sycamore Creek Road. Comment
  UCD139903  Trillium chloropetalum Morris Halperin 1929-4-21 s.n. Contra Costa St. Mary's College Campus. Comment
  JEPS99565  Triodanis biflora Mary Bowerman 1995-5-28 Contra Costa Mount Diablo, knoll on N side of Wall Point Trail 1/2 encircled on W and N sides by road from macedo Ranch to Pine Pond. 304 Comment
  SEINET10458812  Triodanis biflora Joseph W. Congdon 1896-5-30 Congdon s.n. Contra Costa Mount Diablo Comment
  JEPS73687  Triphysaria eriantha subsp. eriantha L. R. Heckard with Wm. Hirano and Ted Niehaus 1968-3-5 1756 Contra Costa along Byron-Bethany road at junction of Holey Road about 3 mi se Byron 7 Comment
  UC27186  Triphysaria eriantha subsp. eriantha J. Burtt Davy 1897-3-29 3019 Contra Costa near Black Diamond Comment
  UC650592  Triphysaria eriantha subsp. eriantha Ira L. Wiggins 1930-4-17 4571 Contra Costa 1/4 mi s Byron Comment
  CHSC116658  Triphysaria pusilla Lowell Ahart; Josephine Guardino 2016-4-19 20780 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the sides of the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  JEPS23260  Triphysaria pusilla G. Thomas Robbins 1959-4-26 4004 Contra Costa about 1/4 mi n San Pablo Oil Tank Farm (open slope about 1 mi ne of Giant) 15 Comment
  JEPS3981  Triphysaria pusilla W. L. Jepson 1923-4-22 9875 Contra Costa Mt. Diablo Comment
  UC691572  Triphysaria pusilla Mary L. Bowerman 1933-5-4 1989 Contra Costa (Rock City Ridge) Fossil Ridge Mount Diablo; , (Rock City Ridge) Fossil Ridge Comment
  CDA33658  Triphysaria versicolor subsp. faucibarbata Duarte/ Gomes 2011-4-18 PDR# 1625731 Contra Costa Knightsen 0 Comment
  UC1795734  Triteleia hyacinthina Barbara Ertter, Brad Olson 1994-5-7 12750 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  UC2027806  Triteleia hyacinthina Barbara Ertter with Holly Forbes 1997-4-20 15543 Contra Costa North base of Mount Diablo, trail to Back Creek from Mitchell Canyon trailhead. Comment
  JEPS112496  Triteleia laxa D. G. Kelch 2004-5-9 04 .204 Contra Costa Crockett - Upper Edwards Canyon, Crockett, above Crockett Blvd 160 Comment
  CAS-BOT-BC526329  Triteleia laxa D. E. Breedlove 1930-6-3 234 Contra Costa North Road, Mount Diablo 167 Comment
  UC191739  Tropidocarpum capparideum Edward Lee Greene 1888-3-24 Contra Costa Byron Spring Comment
  CAS-BOT-BC67407  Tropidocarpum gracile Lewis S. Rose 1934-3-21 34066 Contra Costa 6 miles east of Clayton. Comment
  SEINET3404423 Image available Tropidocarpum gracile Lewis S. Rose 1934-3-21 34066 Contra Costa Clayton, 6 miles East of Clayton Comment
  UC64343  Tropidocarpum gracile H. M. Hall 1901-4-5 1742 Contra Costa Pine Canyon Region of San Francisco Bay, Mt. Diablo Comment
  UC673305  Tropidocarpum gracile H. L. Mason 1929-3-31 5152 Contra Costa sand dike along river at Antioch; San Joaquin River Comment
  UC691062  Tropidocarpum gracile Mary L. Bowerman 1932-2-28 1092 Contra Costa ridge e Rhine Canyon; Mount Diablo 579 Comment
  UC691063  Tropidocarpum gracile Mary L. Bowerman 1933-3-18 1750 Contra Costa floor of canyon above Olafson's; Mount Diablo, Curry Canyon Comment
  CAS-BOT-BC67406  Tropidocarpum gracile H. L. Mason 1929-3-31 5152 Contra Costa Along San Joaquin River at Antioch. Comment
  CAS-BOT-BC67412  Tropidocarpum gracile Mary L. Bowerman 1931-3-29 614 Contra Costa Mount Diablo. Riggs Canyon, at foot of Cave Point ridge. Comment
  CDA1419  Typha angustifolia D. G. Kelch, Andrew G. Murdock 2003-8-13 3 .105 Contra Costa Carquinez Strait Region; Martinez Marsh. Comment
  JEPS111911  Typha angustifolia Dean G. Kelch and Andrew G. Murdock 2004-5-28 AGM 281 Contra Costa Refugio Valley. Comment
  JEPS111915  Ulmus glabra Dean G. Kelch and Andrew G. Murdock 2004-9-2 DGK 04 .341 Contra Costa Martinez (Ozol) CA East of Ozol. Comment
  CAS-BOT-BC91090  Umbellularia californica Alice Eastwood 1922-3-17 11086 Contra Costa Mount Diablo. Comment
  JEPS68942  Umbellularia californica Edward Lee 1935-2-10 1270 Contra Costa Wildcat Creek; Berkeley, Berkeley Hills Comment
  SEINET12102545  Umbellularia californica M. T. Doutt 1930-1 97 Contra Costa Marsh Creek Comment
  CAS-BOT-BC381828  Uropappus lindleyi Mary L. Bowerman 1935-4-17 2831 Contra Costa Mount Diablo. West road 2 miles from entrance 237 Comment
  CAS-BOT-BC381830  Uropappus lindleyi Alice Eastwood 1921-4-18 10291 Contra Costa Antioch Comment
  UC691466  Uropappus lindleyi Mary L. Bowerman 1932-4-27 1396 Contra Costa canyon w Riggs Canyon (s face Oyster Ridge, Mount Diablo); Mount Diablo, s face Oyster Ridge 335 Comment
  UC691783  Uropappus lindleyi Mary L. Bowerman 1957-5-2 1957 Contra Costa Pioneer Camp Mount Diablo 762 Comment
  UC1818992  Uropappus lindleyi Barbara Ertter, Lisa Schultheis 1995-4-27 14010 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
  UCR254746  Urtica dioica Peter Rubtzoff 1968-9-18 5963 Contra Costa North Gate Road, c. 5 miles NW of Mt. Diablo State Park north entrance 58 Comment
  CAS-BOT-BC404065  Urtica dioica subsp. holosericea Vincent Jones 1920-8-29 s.n. Contra Costa Orwood Comment
  CAS-BOT-BC199242  Vaccinium ovatum W. W. Carruth 1901-5-1 s.n. Contra Costa Redwood Canon [Canyon] Comment
  JEPS77019  Vaccinium ovatum Robert M. Lloyd 1963-3-17 2145 Contra Costa 0.5 mi e intersection of Grizzly Peak Road and Skyline Drive (on Skyline (across from 7090 Skyline), Huckleberry trail) Comment
  UC1714515  Verbascum blattaria unknown July 1892 Contra Costa Redwood Peak Comment
  CDA40699  Verbena lasiostachys var. scabrida D. G. Kelch 2005-7-14 5 .461 Contra Costa Carquinez S