Search Results — 2000 specimen records retrieved (1360 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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A yellow cell in the column headed "?", for records with coordinates, indicates a discrepancy with respect to range as specified in the eFlora. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  RSA0029772  Acacia cyclops Barbara J. Ertter 1990-10-14 9660 Contra Costa Point Isabel Regional Shoreline on San Francisco Bay in SW El Cerrito, on abandoned railroad track at end of Rydin Road. Comment
  UC1050943  Acacia pycnantha N. Floy Bracelin 1942-8-16 2256 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  SEINET12766391  Acer macrophyllum M. E. Matheron 1968-4-14 55 Contra Costa 2 miles from entrance to Mt. Diablo State Park on North Gate Road, Mt. Diablo.; 0 457 Comment
  UC1051142  Acer macrophyllum N. Floy Bracelin 1943-7-18 2560 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC334180  Acer negundo var. californicum Annetta Carter 1937-3-28 1227 Contra Costa Creek bank, Moraga Valley, 2.5 miles north of Moraga 182 Comment
  CAS-BOT-BC334183  Acer negundo var. californicum Annetta Carter 1926-3-27 1384 Contra Costa San Leandro Canyon; Concord USGS 152 Comment
  CDA29142  Achillea millefolium D. G. Kelch 2006-5-7 6 .148 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. 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
  JEPS37093  Achillea millefolium W. L. Jepson 1922-5-23 9651 Contra Costa Mt. Diablo Comment
  SEINET10614426  Achillea millefolium John T. Middleton 1936-4-18 Middleton 142 Contra Costa Comment
  SEINET242917 Image available Achnatherum parishii Mary E. Barkworth, Surrey W. L. Jacobs; Betty Jacob 2003-4-7 2003 /5 Contra Costa CULTIVATED; Tilden Regional Park, east of Berkeley. Comment
  CDA25241  Achyrachaena mollis D. G. Kelch, D. A. Weinstein 2008-4-15 08 .047-B Contra Costa Carquinez Strait; S Port Costa along Mckewen Rd. Comment
  JEPS100120  Achyrachaena mollis G. Smick 2003-4-10 GAS 138 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS111743  Achyrachaena mollis Dean G. Kelch and Andrew G. Murdock 2005-3-26 05 .101 Contra Costa Concord Airport Large, low, wet field north and east of Concord Airport immediately north of Little League ball fields 5 Comment
  JEPS36721  Achyrachaena mollis Anna E. Ehlers 1920-5-23 582 Contra Costa Trampas Canon Comment
  UC1301058  Achyrachaena mollis Helen K. Sharsmith 1963-4-7 5298 Contra Costa near Byron; San Francisco Bay 7 Comment
  UC1733837  Achyrachaena mollis Kay H. Beach 1941-4-30 1081 Contra Costa 5 mi W of Byron; Marsh Creek Road 30 Comment
  UC29290  Achyrachaena mollis J. Burtt Davy May 13 1893-Jan 1 1900 766 Contra Costa Comment
  UCD128392  Achyrachaena mollis Morris Halperin 1929-4-21 s.n. Contra Costa Franklin Canyon. Comment
  JEPS127096  Acmispon americanus var. americanus Lowell Ahart, Josephine Guardino 2016-4-19 20761 Contra Costa 1.4 miles (air) northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Spring USGS 7.5' Quad. Comment
  JEPS112353  Acmispon glaber Dean G. Kelch and Andrew G. Murdock 2004-4-3 04 .054 Contra Costa Crockett - Tormey Headlands, County: Contra Costa; Road cut west of I-80 and Cummings Skyway junction. Comment
  UC2028281  Acmispon wrangelianus Barbara Ertter with Brad Olson 1994-5-7 12760 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge, edge of San Francisco Bay Comment
  CDA20180  Acroptilon repens A. Niang 2003-7-9 PDR 1406327 Contra Costa San Francisco Bay Area; 5225 Hidorn Ranch Rd, Brentwood. 0 Comment
  JEPS60378  Actaea rubra W. L. Jepson 1916-9-3 6848 Contra Costa just below Redwood Peak (in Redwood Canyon); Oakland Hills, Redwood Canyon Comment
  CAS-BOT-BC133156  Adenostoma fasciculatum M. K. C. 1886-5-1 s.n. Contra Costa Antioch Comment
  JEPS100160  Adiantum jordanii A. Langston 2003-6-19 AL 52 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site 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
  CAS-BOT-BC202598  Aesculus californica Miss E. Cannon 1892-6-4 s.n. Contra Costa Concord Comment
  UC1952817  Ageratina adenophora Barbara Ertter 2010-5-12 19833 Contra Costa Miller Knox Regional Shoreline at south edge of Point RIchmond, dogleg turn in recently re-routed stretch of Crest Trail below False Gun point Comment
  JEPS100119  Agoseris grandiflora G. Smick 2003-4-29 GAS 151 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  SEINET11854999  Agoseris grandiflora W. L. Jepson 1943-1 20846 Contra Costa Moraga Ridge Comment
  JEPS36323  Agoseris grandiflora var. grandiflora W. L. Jepson 1922-5-26 9674 Contra Costa grassy hills North Berkeley Hills Comment
  UCD84956  Agoseris grandiflora var. grandiflora Chuck Hughes 2010-5-21 228 Contra Costa About 0.8 mile northwest of Vasco Road. 335 Comment
  SEINET6738507 Image available Agoseris heterophylla H. P. Chandler 1901-4-5 976 A Contra Costa Mt. Diablo Comment
  POM52175  Agoseris heterophylla C. F. Baker 1903-4-28 2831 Contra Costa Marsh Creek, Mt. Diablo. Comment
  UC29357  Agoseris heterophylla var. heterophylla H. M. Hall 1901-4-5 1726 Contra Costa Mt. Diablo; San Francisco Bay region Comment
  UC585072  Agoseris hirsuta G. L. Stebbins Jr. 1936-5-16 1562 Contra Costa w Berkeley Country Club Comment
  CAS-BOT-BC13349  Agoseris retrorsa K. C. 1883-5-1 s.n. Contra Costa Mount Diablo Comment
  SEINET10789684  Agropyron inerme Thomas B. Croat 1966-6-18 Croat 1989 Contra Costa Frank's Tract, Bethel Island; 7 miles W of Oakley, lakeside & marsh habitats. Comment
  POM300723  Agrostis Mary L. Bowerman 1933-8-26 2413 Contra Costa Mount Diablo. At and below Lower Canyon Spring. 976 Comment
  CAS-BOT-BC127342  Agrostis exarata Mary L. Bowerman 1933-9-9 2434 Contra Costa Mount Diablo. Frog Pond. Comment
  JEPS100030  Agrostis exarata A. Langston 2003-6-6 AL 35 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2028527  Agrostis exarata Barbara Ertter 1997-11-1 15884 Contra Costa South side Mount Diablo, end of spur road east of Knobcone Point, below powerline crossing at head of Alamo Creek drainage. Comment
  UC697196  Agrostis hallii Mary L. Bowerman 1944-6-19 3895 Contra Costa in eastern corner of triangle formed by roads to upper Rock City Camp (Fossil Ridge, Mount Diablo); Mount Diablo Comment
  UC2028526  Agrostis hallii Barbara Ertter 1997-11-1 15883 Contra Costa South side Mount Diablo, end of spur road east of Knobcone Point, below powerline crossing at head of Alamo Creek drainage. Comment
  RSA0033844  Agrostis stolonifera Barbara Ertter 2000-7-16 17383 Contra Costa Diablo Foothills Regional Park, along Pine Creek between Castle Rock Recreation Area and flood-control checkdam. 106 Comment
  UC50548  Agrostis viridis Jos. Burtt Davy 1897-9-4 4082 Contra Costa Stege Comment
  UC1606340  Alisma plantago-aquatica Barbara Ertter, Brad Olson 1991-9-28 10847 Contra Costa between Orinda and El Sobrante (s end of San Pablo Reservoir); San Pablo Reservoir 94 Comment
  RSA107394  Allenrolfea occidentalis L. S. Rose 1955-9-12 55173 Contra Costa 2 miles E of Byron. 15 Comment
  RSA411794  Allenrolfea occidentalis E. E. Stanford 1930-08 1871 Contra Costa Near Old River; near sloughs. Comment
  CAS-BOT-BC469111  Allium falcifolium L. R. Abrams 1921-5-25 2038 Contra Costa Summit Mt. Diablo Comment
  JEPS112495  Allium neapolitanum D. G. Kelch 2005-3-24 05 .55 Contra Costa Southern Pt. Pinole 3 Comment
  UC185478  Allium peninsulare var. peninsulare Katharine Brandegee May 1907 Contra Costa Antioch Comment
  UC3107  Allium serra Brewer 1022 Contra Costa Walnut Creek Comment
  UCSC000149  Allium serra Beryl O. Schreiber 1932-3-27 127 Contra Costa Mountain House Comment
  CAS-BOT-BC475528  Allium serra Alice Eastwood 1923-5-4 11730 Contra Costa 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
  UC3105  Allium serra H. P. Chandler 1900-3-23 573 Contra Costa Pleasant Valley Comment
Read comments
Aug 23 2008
  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
  IRVC12872  Allium serratum A. French 1967-5-20 38 Contra Costa Road from Walnut Creek to Mt. Diablo; ca. 3 mi. N of toll, entrance to state park. Comment
  JEPS56395  Allium unifolium W. L. Jepson 1918-6-3 7588 Contra Costa Donner Canyon Mt. Diablo, Donner Canyon 685 Comment
  CAS-BOT-BC476608  Allium unifolium Mary L. Bowerman 1933-6-3 2250 Contra Costa Small spring at bend below Silver Spring. Comment
  UC2028115  Allium unifolium Barbara Ertter with Richard K. Brummitt 1998-5-6 16094 Contra Costa Lower Donner Canyon on north base of Mount Diablo, Hetherington Trail upstream from Donner Cabin. Comment
  SEINET8731247 Image available Allocarya stipitata Lewis S. Rose 1936-1 36155 Contra Costa 8 mi. S. of Antioch 30 Comment
  JEPS108354  Allophyllum gilioides David Gowen 2005-4-3 223 Contra Costa Mt. Diablo State Park. Rhine Canyon just below Devils Elbow. Comment
  CAS-BOT-BC170933  Alnus rhombifolia Alice Eastwood 1914-3-6 s.n. Contra Costa Redwood Canyon Comment
  JEPS58614  Alnus rhombifolia W. L. Jepson 1901-10-12 Contra Costa Mount Diablo Comment
  SEINET3151403  Alnus rhombifolia L. S. Rose 1938-10-28 38307 Contra Costa Marsh creek, 6 miles East of Clayton. 152 Comment
  UC1093922  Alnus rhombifolia Herbert L. Mason 1924-11-23 1159 Contra Costa Las Trampas Ridge; via Cashion Comment
  CAS-BOT-BC170930  Alnus rhombifolia Walter Knight 1978-9-19 3265 Contra Costa Browns Island, Alder Point Comment
  JEPS127677  Alopecurus saccatus Barbara Ertter with David Gowen and Michael Park 2017-5-2 22798 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  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
  UC2027912  Amaranthus californicus Barbara Ertter 2000-9-30 17537 Contra Costa West side Mount Diablo, pond on west side of Briones-Mount Diablo Trail south of Stonegate Trail junction. 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
  UC691916  Amaranthus retroflexus Mary L. Bowerman 1938-10-15 3727 Contra Costa North Road, by trail to w of spring Mount Diablo 213 Comment
  RSA300588  Amaranthus retroflexus Mary L. Bowerman 1936-9-9 3539 Contra Costa Sycamore Canyon just below Blackhawk Ranch Comment
  JEPS25151  Ambrosia chamissonis G. Thomas Robbins with John Weiler 1959-5-23 4021 Contra Costa on breakwater (nw extension) Brooks Island; San Francisco Bay, Richmond Comment
  CAS-BOT-BC55589  Ambrosia psilostachya Walter Knight; Joanne Dean 1978-8-14 3115 Contra Costa Browns Island Comment
  CAS-BOT-BC55591  Ambrosia psilostachya Peter Rubtzoff 1954-9-14 1762 Contra Costa Lower San Joaquin River, east of Antioch (sand dune area) Comment
  SEINET11910975  Amelanchier alnifolia W. Knight, Knight, I. 1983-1 4741 Contra Costa Tilden Botanic Garden, Berkeley 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-BC222227  Amsinckia Alice Eastwood; John Thomas Howell 1936-4-19 2131 Contra Costa Nortonville Comment
  UC1094074  Amsinckia eastwoodiae Francia Chisaki 1952-3-13 201 Contra Costa 0.25 mi s of Hwy 50 on Mountain House Road Comment
  SBBG6220  Amsinckia intermedia J. M. Tucker 1946-3-24 1386 Contra Costa hills between Nortonville and Somersville Comment
  UC1073377  Amsinckia intermedia George B. Rossbach 1955-3-20 457 Contra Costa sw base of Mount Diablo Comment
  UC881400  Amsinckia intermedia Lewis S. Rose 1941-3-13 41032 Contra Costa 3 mi s Byron 15 Comment
  RSA0090977  Amsinckia intermedia Barbara Ertter, Jim Jokerst, Dave Magney 1989-4-5 8130 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  UC1094057  Amsinckia intermedia Francia Chisaki 1954-4-15 590 Contra Costa on Hwy #40 near it's junction with Hwy #4, between Pinole and Hercules Comment
  UC1094090  Amsinckia intermedia Francia Chisaki 1954-3-25 569 Contra Costa 3.2 mi w of junction with road entering Mt. Diablo State Park (on road to; (road out of Walnut Creek)) Comment
  UC1084622  Amsinckia lunaris Francia Chisaki, Peter Kamb Ray 1952-5-4 2275 Contra Costa 1.5 mi e Orinda-Richmond road (leaving this road ca 1 mi n of Orinda); Bear Creek Road Comment
  JEPS18322  Amsinckia lycopsoides Rimo Bacigalupi with F. Chisaki 1957-3-27 5757 Contra Costa 3/4 mi w Antioch (along Somersville road between Borden Highway and S. P. Ry) 19 Comment
  UCD119723  Amsinckia lycopsoides R. Bacigalupi; Francia Chisaki 1957-3-27 910 Contra Costa Rolling plain along Somersville road between Borden Highway and Southern Pacific Railway, 0.75 mile west of Antioch. 19 Comment
  CAS-BOT-BC26823  Amsinckia peltigera Alice Eastwood 1921-4-18 10311 a Contra Costa Antioch Comment
  SEINET12280508  Amsinckia spectabilis L. S. Rose 1932-1 3272 Contra Costa Byron Comment
  UC24597 Image available Amsinckia tessellata J. Burtt Davy 1895-4-7 931 Contra Costa Antioch; ; Antioch, Contra Costa Co. Comment
  JEPS25509  Amsinckia tessellata var. tessellata R. F. Hoover 1938-3-25 2894 Contra Costa Markley Canyon Comment
  JEPS68948  Amsinckia tessellata var. tessellata Edward Lee 1935-3-10 1276 Contra Costa w watershed of Kirker Creek (Kirker Pass, Donovan Road); Kirker Pass Comment
  JEPS127041  Anagallis arvensis Lowell Ahart, Josephine Guardino 2016-4-19 20784 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
  SBBG122786  Anagallis arvensis B. Ertter 1993-5-7 11717 Contra Costa horse trail SE of Vollmer Peak, E of Tilden Park steam trains 518 Comment
  UC691833  Anagallis arvensis Mary L. Bowerman 1930-6-28 389 Contra Costa Mt. Diablo, Lower Silver Spring Comment
  UCD117553  Anagallis arvensis Terri Williamson 1990-5-22 69 Contra Costa 212 Poshard Street, Pleasant Hill. 12 Comment
  CAS-BOT-BC45254  Ancistrocarphus filagineus Brandegee s.n. Contra Costa Antioch Comment
  UC691813  Ancistrocarphus filagineus Mary L. Bowerman 1932-4-9 1321 Contra Costa firebreak on large spur which heads into Sycsamore Canyon Inner Black Hills; Mount Diablo Comment
  UC2070515  Ancistrocarphus filagineus Barbara Ertter with Dan Norris 2001-4-8 17586 Contra Costa Lime Ridge Open Space east of Walnut Creek. Comment
  CAS-BOT-BC46937  Androsace elongata subsp. acuta Mary L. Bowerman 1932-3-12 1116 Contra Costa Alamo Canyon, 50' above stream. 365 Comment
  JEPS112258  Anemopsis californica D. G. Kelch 2004-6-6 04 .226 Contra Costa Martinez - Train Station; Downtown Martinez. Alhambra Creek near bay and railroad station. Comment
  JEPS12259  Anemopsis californica W. L. Jepson May 22 1891-May 23 1891 Contra Costa Mount Diablo Comment
  UC692565  Angelica californica Mary L. Bowerman 1931-6-2 915 Contra Costa Mount Diablo, Gregory Ranch Road Mount Diablo; , Gregory Ranch Road 518 Comment
  JEPS84503  Anisocarpus madioides Jack Stratford 1981-5-11 Contra Costa Huckleberry Trail Huckleberry Botanic Regional Preserve Comment
  UCD159357  Anthemis cotula D. S. Park 2010-6-22 142 Contra Costa Wildwood canyon. Along trailside and on trail. 79 Comment
  CAS-BOT-BC84715  Anthemis cotula E. M. Zeile 1921-8-6 1136 Contra Costa Shepherd Canon Comment
  SEINET2446344  Antirrhinum elmeri A. D. E. Elmer 4809 Contra Costa Mount Diablo. Comment
  JEPS107090  Antirrhinum majus Barbara Ertter, Brad Olson 1994-5-7 12744 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  JEPS83303  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum David M. Thompson 1984-8-12 405 Contra Costa 0.25 mi n water of Briones Reservoir (at the end of Hampton Road); Briones Valley Quad. 198 Comment
  JEPS112070  Aphanes occidentalis A. G. Murdock 2004-3-5 212 Contra Costa Sky Ranch At top of ridge along road 250 Comment
  UC2062618  Aphanes occidentalis Barbara Ertter with Save Mount Diablo outing 2003-5-8 18163 Contra Costa Mangini property on knoll west of Mount Zion, NW corner of Mount Diablo. Comment
  UC691898  Apiastrum angustifolium Mary L. Bowerman 1932-4-27 1391 Contra Costa canyon w of Riggs Canyon (Mount Diablo, Oyster Ridge); Mount Diablo, Oyster Ridge 335 Comment
  SEINET3156065  Apiastrum angustifolium T. S. Brandegee sn Contra Costa Mt. Diablo Comment
  CDA39735  Apocynum cannabinum D. G. Kelch 2004-7-9 4 .306 Contra Costa Carquinez Strait; Alhambra Creek, Martinez, near Muir gravesite, Arroyo del Hambre. Comment
  RSA0125502  Arabis breweri E. W. Hicks 1917-3-24 111 Contra Costa Mt. Diablo. 1067 Comment
  CAS-BOT-BC128691  Arbutus menziesii C. Keefer 1922-9-25 s.n. Contra Costa Moraga Ridge Comment
  UC692481  Arbutus menziesii Mary L. Bowerman 1931-3-21 598 Contra Costa Sycamore Canyon, west fork Sycamore Canyon; Mount Diablo, Sycamore Canyon 396 Comment
  UCSB11594  Arbutus menziesii Grah, Nancy 1962-4-20 Contra Costa 2.0 miles east of San Pablo Dam on Wildcat Canyon Road, 4 miles east of Berkeley 274 Comment
  UC615582  Arceuthobium campylopodum Beryl O. Schreiber 1933-10-5 937 Contra Costa rd to Mt Diablo Comment
  UCSB21792  Arctostaphylos andersonii Keefe, Joseph 1967-3-20 Contra Costa Along Huckleberry Trail, 0.5 mile east of Skyline Boulevard, near intersection with Grizzly Peak Boulevard, east of Berkeley 274 Comment
  CAS-BOT-BC24117  Arctostaphylos auriculata C. F. Baker 1903-5-31 3161 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC24118  Arctostaphylos auriculata Alice Eastwood 1922-5-14 11311 Contra Costa Mt. Diablo Comment
  JEPS38915  Arctostaphylos auriculata Mary L. Bowerman 1932-2-13 1086 Contra Costa on ridge between main forks of canyon Mount Diablo; , Alamo Canyon Comment
  POM316531  Arctostaphylos auriculata Mary L. Bowerman 1932-1-23 1075 (Duplicate) Contra Costa Sycamore Canyon, east fork: East edge of chaparral near canyon bottom. Comment
  RSA252149  Arctostaphylos auriculata G. D. Wallace 1974-12-26 1372 Contra Costa Mount Diablo St. Pk. off Summit Dr. along a ridge E of Curry Point; SE of Balancing Rock. 530 Comment
  RSA622482  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27598 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments
Jan 30 2013
  RSA622487  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27599 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments
Jan 30 2013
  SBBG28871  Arctostaphylos auriculata L. S. Rose 1934-2-28 34039 Contra Costa S slope of Mt Diablo, 8 mi NE of Danville Comment
  UC1120859  Arctostaphylos auriculata R. W. Lundh 1932-8-24 138 Contra Costa 2 mi s Mt. Diablo (Rock City); Mt. Diablo Quadrangle 502 Comment
  UC1200411  Arctostaphylos auriculata Edward Lee 1936-1-12 1714 Contra Costa w-facing slope immediately s Nortonville Comment
  UC549568  Arctostaphylos auriculata J. E. Adams 1934-3-19 672 Contra Costa Mt. Diablo Comment
  UC549569  Arctostaphylos auriculata J. E. Adams 1934-10-6 852 Contra Costa Rock City Mt. Diablo Comment
  UC692479  Arctostaphylos auriculata Mary L. Bowerman 1933-3-25 1773 Contra Costa top Pine Canyon Ridge (s-facing slope between the two forks); Mount Diablo, Emmons Canyon (off Stone Valley) Comment
  UC697791  Arctostaphylos auriculata Mary L. Bowerman 1932-9-5 1547 Contra Costa near firebreak which runs s from large spur (on meridian) heading into Sycamore Canyon; Mount Diablo, Inner Black Hills Comment
  UC83034  Arctostaphylos auriculata Katharine Brandegee 1889-1 Contra Costa Antioch Comment
  CHSC20599  Arctostaphylos glandulosa Robert A. Schlising 1962-2-21 2081 Contra Costa Coast Ranges. Berkeley-Oakland Hills of westernmost part of county. Comment
  CAS-BOT-BC24809  Arctostaphylos glandulosa subsp. glandulosa Paul F. Covel 1938-2-20 1113 Contra Costa Moraga Ridge above Pinehurst. Comment
  CAS-BOT-BC24659  Arctostaphylos glauca H. E. McMinn 1922-10-17 411 Contra Costa From Mitchell Canyon, Mt. Diablo. Comment
  RSA632816  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27580 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  SEINET11991008  Arctostaphylos manzanita Unknown 1981-1 4 Contra Costa Mt. Diablo State Park, 10 mi from parks N gate Comment
  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
  JEPS38919  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1931-12-17 1071 Contra Costa s face of ridge e Rock City Canyon; Mount Diablo, Rock City Ridge Comment
  JEPS38920  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1930-6-18 349 Contra Costa Rock City Canyon Mount Diablo Comment
  JEPS38921  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1933-3-25 1769 Contra Costa n face of canyon Mount Diablo, Pine Canyon (near top of ridge, approached up Diablo Stock Farm Canyon) Comment
  RSA140022  Arctostaphylos manzanita subsp. laevigata H. A. Jensen 1938-10-27 451 Contra Costa Head of Curry Canyon 518 Comment
  RSA44373  Arctostaphylos manzanita subsp. laevigata L. S. Rose 1949-3-24 49014 Contra Costa W slope of Mt Diablo, near Rock City. 609 Comment
  UC549750  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-3-19 689 Contra Costa Mt. Diablo Comment
  UC549756  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-3-19 685 Contra Costa Mt. Diablo Comment
  UC692516  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1931-3-1 541 Contra Costa e meridian (w part of chaparral); Mount Diablo, Inner Black Hills Comment
  UCD51727  Arctostaphylos manzanita subsp. laevigata R. C. Wilson 1935-2-26 112 Contra Costa 3/4 mile southwest of Somersville. 411 Comment
  SEINET3411014 Image available Arctostaphylos manzanita subsp. laevigata Lewis S. Rose 1934-2-28 Contra Costa Rocky shrubby hills, South slope Mt. Diablo, 8 miles NE Danville, Contra Costa County, California. Comment
  CAS-BOT-BC24393  Arctostaphylos manzanita subsp. manzanita Walter Knight 1979-5-31 3376 Contra Costa Morgan Territory Regional Land Bank. Comment
  CAS-BOT-BC42230  Arctostaphylos pallida H. E. McMinn 1925-1-1 s.n. Contra Costa Head of San Leandro Creek Comment
  JEPS46271  Arctostaphylos tomentosa subsp. crustacea W. L. Jepson 1943-6-19 20850 Contra Costa Moraga Ridge Comment
  JEPS96258  Arctostaphylos tomentosa subsp. crustacea Dean Kelch 1995-3-14 97 .14 Contra Costa Rock City Mt. Diablo; e. Contra Costa Co., , Rock City Comment
  RSA164648  Arctostaphylos tomentosa subsp. crustacea P. C. Everett 1963-11-19 11774 Contra Costa Mt. Diablo. 457 Comment
  RSA202863  Arctostaphylos tomentosa subsp. crustacea Edward Lee 1935-12-28 1702 Contra Costa Western end of Las Trampas Ridge Comment
Read comments
Jul 2 2011
  UC1120138  Arctostaphylos tomentosa subsp. crustacea C. M. Belshaw 1936-2-16 1585 Contra Costa 2 1/2 mi nw Lafayette; Concord Quadrangle, Lafayette Ridge Comment
  UC1120146  Arctostaphylos tomentosa subsp. crustacea C. M. Belshaw 1936-2-16 1589 Contra Costa 2 1/2 mi nw Lafayette; Concord Quadrangle, Lafayette Ridge Comment
  UC549412  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-19 677 Contra Costa Rock City Mount Diablo Comment
  UC549475  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-19 680 Contra Costa Rock City Mount Diablo Comment
  UC909879  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 631 Contra Costa Moraga Ridge Comment
  UC2046014  Arctostaphylos viscida subsp. mariposa Stephen W. Edwards July, 2012 s.n. Contra Costa Pleasant Hill, along Taylor Blvd. Comment
  CAS-BOT-BC102183  Argyranthemum foeniculaceum G. Thomas Robbins; John Weiler 1959-5-23 4022 Contra Costa Breakwater portion of Brooks Island (its northwestern extension), San Francisco Bay, Richmond Comment
  JEPS111635  Aristolochia californica D. G. Kelch 2004-3-5 04 .3 Contra Costa Martinez - Rankin Open Space Rankin Park, Martinez 68 Comment
  UC64561  Aristolochia californica H. M. Hall 1901-3-22 1682 Contra Costa canyon s. of Port Costa; San Francisco Bay Region Comment
  OBI20502  Aristolochia californica Neil Havlik 1968-3-26 95 Contra Costa Botanical Garden, Charles Lee Tilden Regional Park, E of Berkeley Comment
  UC1949095  Artemisia biennis Barbara Ertter with Jim Dunne, David Gowen, Lech Naumovich 2009-12-3 19800 Contra Costa upper (south) end of San Pablo Dam Reservoir northwest of Orinda Comment
  UC2070630  Artemisia biennis Barbara Ertter 2005-8-18 18640 Contra Costa Mudflats on SE side of San Pablo Reservoir in East Bay Hills, east of San Pablo Dam Road between San Pablo and Orinda, access between HQ and boat launching area [reservoir way down this year while being drained for seismic work on dam], with extensive Artemisia biennis. Comment
  UC2042495  Artemisia californica Barbara Keller and J. Ruck 2011-6-23 Contra Costa Mt. Diablo State Park, North Gate Rd. Comment
  SEINET9290427  Artemisia californica Unknown 1959-10-19 5466 Contra Costa Contra Costa Comment
  UC1584696  Artemisia douglasiana Jerry Powell 1990-8-29 1591 Contra Costa Antioch National Wildlife Refuge Comment
  UC1584697  Artemisia douglasiana Jerry Powell 1990-8-29 1591 Contra Costa Antioch National Wildlife Refuge Comment
  RSA0027950  Artemisia douglasiana Barbara Ertter 1997-9-7 15794 Contra Costa North side of Mount Diablo, Donner Creek crossing at south end of Hetherington Trail. Comment
  HSC24607  Asarum caudatum D. A. Shally 1965-4-18 41 Contra Costa Canyon, 1 mi. N of Canyon Store Comment
  SFV8432  Asarum caudatum A. Smith 1972-5-21 39 Contra Costa Roadside in Flicka Ridge area. Canyon. 91 Comment
  UC22951  Asclepias californica State Survey 1890-1 1123 Contra Costa region Mt. Diablo Comment
  UC2045295 Image available Asclepias californica Mary L. Bowerman 1932-9-24 1596 Contra Costa Ridge running west from Twin Peaks Comment
  JEPS15235  Asclepias cordifolia Rimo Bacigalupi with G. Thomas Robbins 1956-5-11 5642 Contra Costa 1/4 mi above and nw Glen Frazier Station on the Santa Fe Railway; Franklin Canyon 106 Comment
  UC35243  Asclepias cordifolia Prof. E. L. Greene April 1889 Contra Costa hills near Martinez Comment
  CHSC23359  Asclepias fascicularis Willis Ball 1975-6-1 533 Contra Costa Contra Loma Regional Park. In area #1 ca. 75 yds sw of main restroom facility at s end of reservoir. 45 Comment
  JEPS100125  Asclepias fascicularis A. Langston 2003-7-24 AL 69 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS112507  Asparagus officinalis subsp. officinalis A. G. Murdock 2003-6-24 115 Contra Costa Mt. Wanda - Martinez Near parking lot at NE corner of Mt. Wanda 37 Comment
  RSA720887  Asphodelus fistulosus Barbara Ertter, Tony Morosco 2000-4-12 16959 Contra Costa Vasco Road 0.4 miles north of Tesla Road southeast of Livermore Comment
  UC1446048  Aspidotis californica Alan Smith with Ed Lee 1979-4-25 729 Contra Costa s side Mt Diablo Peak (along Devil's Elbow trail, less than 5 minutes from main rd, below Devil's Pulpit) 1066 Comment
  CAS-BOT-BC180571  Astragalus asymmetricus Mrs. E. C. Wright 1917-6-1 s.n. Contra Costa Mt. Diablo Comment
  UC1128838  Astragalus asymmetricus N. French 1935-7-19 644 Contra Costa 1/2 mi e Nortonville; Mt. Diablo Quad., e of Nortonville 304 Comment
  JEPS116726  Astragalus asymmetricus David Gowen 2006-4-22 544 Contra Costa South of Byron airport on Byron Springs Rd. Comment
  CAS-BOT-BC177883  Astragalus didymocarpus var. didymocarpus Brandegee 1889-5-1 s.n. Contra Costa Antioch Comment
  SEINET3127325  Astragalus didymocarpus var. didymocarpus Brandegee sn Contra Costa Antioch Comment
  UC83409  Astragalus gambelianus Katharine Brandegee april 1889 Contra Costa Antioch Comment
  SEINET947942  Astragalus tener Peter H. Raven 1957-1 10586 Contra Costa 3.0 miles south of Byron. Comment
  UC10226  Athysanus pusillus T. S. Brandegee Contra Costa Antioch Comment
  SEINET6069536  Athysanus pusillus Unknown 1931-3-10 5754 Contra Costa Mt. Diablo. East side. 7 miles from Clayton on Livermore Road. Comment
  CAS-BOT-BC168611  Atriplex Alice Eastwood 1927-5-19 14438 Contra Costa Byron Springs Comment
  CHSC99191  Atriplex argentea var. mohavensis John Dittes 2006-10-26 1414 Contra Costa San Joaquin Valley (foothills near nw edge); ~ 2.0 air-mile south of Marsh Creek Reservoir Gauging Station, 1.6 air-mile southwest of intersection of Camino Diablo and Vasco Road; Contra Costa Water District's Los Vaqueros Watershed Mitigation Project Area. 67 Comment
  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
  UC1601680  Atriplex coronata Katharine Brandegee 1907-5-3 Contra Costa between Antioch and Marsh Creek; between Antioch and Marsh Creek Comment
  LA204675  Atriplex coronata John Thomas Howell; 1930-9-28 5503 Contra Costa 5.4 miles from Byron on Marsh Creek Road Comment
  UC70181  Atriplex fruticulosa J. Burtt Davy May 1898 Contra Costa region Mount Diablo (Livermore Pass); region of Mount Diablo, Livermore Pass Comment
  POM203039  Atriplex joaquinana J. T. Howell 1934-4-8 11823 Contra Costa South of Antioch, Contra Costa County Comment
  JEPS41046  Atriplex leucophylla Rimo Bacigalupi and L. R. Heckard 1965-5-11 9071 Contra Costa on strand at n end Brooks Island (in San Francisco Bay sw of Richmond); San Francisco Bay, sw of Richmond, n end Brooks Island Comment
  UCD97555  Atriplex minuscula Robert E. Preston 1996-7-30 988 Contra Costa on both sides of Greenville Road, 1/2 mile south of I-580. Comment
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Sep 3 2012
  CDA37400  Atriplex prostrata D. G. Kelch, Mike Perlmutter 2011-9-23 11 .763 Contra Costa Antioch. Dow Wetlands. Comment
  CDA21599  Atriplex semibaccata D. G. Kelch, Mike Park 2008-9-1 8 .303 Contra Costa Carquinez Strait; Lonetree Point. Rodeo Shoreline Park. Rodeo. Comment
  JEPS111801  Atriplex semibaccata D. G. Kelch 2004-7-9 04 .300 Contra Costa Port Costa - Shore Past Costa Shore 2 Comment
  UC1136330  Atriplex semibaccata H. S. Yates 1934-9-2 4064 Contra Costa 1 mi ne Danville; Mt. Diablo Quad., ne of Danville Comment
  JEPS111803  Atriplex triangularis D. G. Kelch 2004-5-7 04 .194 Contra Costa Ca ada del Cierbo Ca ada del Cierbo 40 Comment
  CAS-BOT-BC145877  Avena fatua Alice Eastwood 1921-4-18 10261 Contra Costa Antioch. Comment
  UC53686  Avena fatua J. Burtt Davy 1900-5-24 6537 Contra Costa Pt. Richmond Comment
  UC606755  Avena fatua Edward Lee 1936-4-19 1996 Contra Costa Red Rock San Francisco Bay (island summit) Comment
  UCD56310  Avena fatua A. A. Beetle 1942-3-22 3266 Contra Costa Brooks Island in San Francisco Bay. Comment
  UCD56084  Avena occidentalis G. Douglas Barbe 1983-5-22 4081 Contra Costa Mount Diablo State Park. 877 Comment
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Nov 19 2009
  CAS-BOT-BC145749  Avena sativa G. D. Barbe 1983-5-22 4081 Contra Costa On hillside along fire road north of Juniper Campground, Mount Diablo State Park. 877 Comment
  CAS-BOT-BC98763  Baccharis douglasii Mary L. Bowerman 1942-10-4 3852 Contra Costa Mount Diablo, Russelman Park road 289 Comment
  POM301043  Baccharis douglasii Mary L. Bowerman 1942-10-4 3852 Contra Costa Russelman Park Road 290 Comment
  CDA10375  Baccharis glutinosa D. G. Kelch, A. G. Murdock 2004-9-2 4 .337 Contra Costa Carquinez Strait Region; Pacheco Marsh. Marsh east of Martinez and I-680 and east of lone tree Marsh. Comment
  SEINET11261322  Baccharis glutinosa Kaye H. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4963 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough. SE portion of Bethel Slough.; 0 610 Comment
  CAS-BOT-BC98611  Baccharis pilularis Walter Knight; I. Knight; S. Rae; B. Doyle; J. T. Howell; E. McClintock 1978-9-5 3208 Contra Costa Browns Island Comment
  JEPS99961  Baccharis pilularis A. Langston 2003-9-16 AL 92 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  SEINET7239588 Image available Baccharis salicifolia Chesnut, Drew 1889-4-16 s.n. Contra Costa Clayton Comment
  UC651295  Baccharis salicifolia subsp. salicifolia Ira L. Wiggins 1930-4-18 4600 Contra Costa Levee Parks, near ferry Jersey Island Comment
  JEPS12785  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
  CAS-BOT-BC106560  Balsamorhiza deltoidea G. L. Stebbins 1937-5-1 2108 Contra Costa North facing ridge, about 1 mile south of Somersville. 365 Comment
  UC1618272  Bassia hyssopifolia Barbara Ertter, B. Olson, D. Lake, L. Hosley and A. Youngson 1991-10-20 10885 Contra Costa just w Antioch marina (Dow Wetlands Preserve); Dow Wetlands Preserve Comment
  CDA32928  Bellardia trixago D. G. Kelch 2009-5-24 9 .3 Contra Costa Carquinez Strait; S of Ozol, W/SW of Martinez. Comment
  JEPS21967  Bellardia trixago G. Thomas Robbins with S. Galen Smith 1958-6-2 3849 Contra Costa just e Hercules city boundary (s and above Refugio Valley, slope along Franklin Canyon Road (State Highway 4)) 18 Comment
  UCD122096  Bellardia trixago Ira J. Condit 1968-4-1 s.n. Contra Costa Walnut Creek. Comment
  UCD122097  Bellardia trixago Roman Gankin 1962-5-18 s.n. Contra Costa Near abandoned railroad bed on east side of Pinehurst Road, ca. 1/4 mile north of junction of this road with Canyon Road, ca. 2 miles west of Moraga. Comment
  UC2027719  Berberis aquifolium var. dictyota Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15515 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  UC697190  Berula erecta Mary L. Bowerman 1932-12-5 1683 Contra Costa n of Boulevard Spring (near North Road, Mount Diablo, Johnny Walker Spring); Mount Diablo, Johnny Walker Spring Comment
  CAS-BOT-BC102084  Bidens frondosa F. C. Crawford 1963-9-16 101 Contra Costa Brentwood, Apricot Way. Milen's pipe line Comment
  CAS-BOT-BC102033  Bidens laevis Walter Knight; Irja Knight 1965-10-15 2036 Contra Costa Frank's Resort. End of Gateway Road. Bethel Tract. Comment
  NY31019  Blennosperma californicum R. F. Hoover 1938-2-21 2750 Contra Costa Byron Hot Springs Comment
  SEINET8734692 Image available Blennosperma californicum Helen K. Sharsmith 1954-1 4409 Contra Costa above old Nortonville Mines, near Kirker Pass road between Clayton and Antioch 305 Comment
  JEPS104714  Blennosperma nanum John L. Morrison 1937-3-6 1972 Contra Costa low hills S of Antioch Comment
  NY31032  Blennosperma nanum D. G. Nelson 1937-3-30 459 Contra Costa Marsh Creek Highway, about halfway between Clayton and Byron Comment
  POM203483  Blennosperma nanum L. S. Rose 1933-3-10 33008 Contra Costa Marsh Creek. Comment
  JEPS18383  Blennosperma nanum var. nanum Rimo Bacigalupi with F. Chisaki 1957-3-27 5761 Contra Costa 1/2 mi w, 3 1/2 mi se of Antioch, jct of Lone Tree Way and Hillcrest Ave Lone Tree School 39 Comment
  JEPS18804  Blennosperma nanum var. nanum Lauramay Tinsley 1927-1-1 Contra Costa Mt. Diablo Comment
  UC34576  Blennosperma nanum var. nanum Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  RSA755794  Blennosperma nanum var. nanum Barbara Ertter 1992-3-8 10908 Contra Costa Byron Springs Road, 4-5 miles south of junction with J4, near Armstrong Road Comment
  POM351055  Blepharizonia laxa T. S. Brandegee 1887-09 s.n. Contra Costa Antioch. Comment
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Dec 16 2012
  UC88955  Blepharizonia laxa Katherine Curran (= Katherine Curran Brandegee) 1883-10-1 Contra Costa near Judsonville - Antioch Comment
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Jan 22 2009
  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
  UC762568  Blepharizonia plumosa Robert F. Hoover 1937-9-2 2711 Contra Costa 1 mi w of Antioch Comment
  UCD77424  Blepharizonia plumosa Robert E. Preston 2001-10-7 1777 Contra Costa Black Diamond Mines Regional Park, on w side of Stewartsville Trail, 0.75 mi s of Parking lot at Frederickson Lane trailhead. 152 Comment
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Mar 14 2018
  SBBG2385  Boechera breweri subsp. breweri H. and M. Dearing 1940-3-20 4125 Contra Costa near summit of Mt 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
  UCD102382  Boechera breweri subsp. shastaensis Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 1060 Comment
  POM194201  Boisduvalia glabella J. T. Howell 1929-7-20 4331 Contra Costa Pittsburg Comment
  UC2029190  Bolboschoenus maritimus Barbara Ertter with Brad Olson et al. 2000-6-2 17307 Contra Costa Brushy Peal Regional Preserve NE of Livermore Comment
  CAS-BOT-BC31331  Bolboschoenus maritimus John Thomas Howell; Gordon H. True 1972-6-29 48943 Contra Costa Low places along Byron Hot Springs Road, SE of Byron. Comment
  CAS-BOT-BC31332  Bolboschoenus maritimus Walter Knight; Harry Reeves 1979-8-25 3408 Contra Costa Man made marsh below dam near golf course. Contra Loma Regional Park near Antioch. 22 Comment
  CDA42003  Boschniakia strobilacea B. Hosman 1974-6-2 s.n. Contra Costa in the native area 0 Comment
  UC691789  Bowlesia incana Mary L. Bowerman 1933-6-7 2259 Contra Costa Mount Diablo, North Peak Ridge North Peak Ridge; Mount Diablo, North Peak Ridge 1021 Comment
  RSA0029674  Brachypodium distachyon Barbara Ertter, Dan Norris 1998-6-18 16222 Contra Costa Devil's Slide trail from Knobcone Point Road, south side of Mount Diablo. 457 Comment
  UC691083  Brassica nigra Mary L. Bowerman 1938-5-25 3633 Contra Costa Mount Diablo. North Road 2 miles from North Gate. 182 Comment
  CAS-BOT-BC36726  Brassica rapa Ira L. Wiggins 1930-4-18 4609 Contra Costa Jersey Island. Comment
  CHSC75072  Brassica rapa Roger Thom 1987-5-26 18 Contra Costa 2800 block of Buena Vista Ave. Walnut Creek. In waste lot. 30 Comment
  UC650432  Brassica rapa Ira L. Wiggins 1930-4-18 4609 Contra Costa Jersey Island Comment
  CAS-BOT-BC106276  Brickellia californica H. E. McMinn 1922-10-17 400 Contra Costa Mitchell Canyon, Mt. Diablo Comment
  UC2070488  Brickellia californica Barbara Ertter 2002-8-24 18038 Contra Costa Lower Perkins Canyon on NE base of Mount Diablo. 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
  CHSC116650  Briza minor Lowell Ahart; Josephine Guardino 2016-4-19 20789 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant .Below the high water line of Los Vaqueros Reservoir, 1.4 miles northwest of Los Vaqueros Reservoir Marina, 1,9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  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
  UC697128  Brodiaea elegans subsp. elegans Mary L. Bowerman 1930-6-3 229 Contra Costa North Road Mount Diablo 167 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
  UC768749  Brodiaea terrestris subsp. terrestris R. F. Hoover 1937-5-14 2122 Contra Costa Byron Hot Springs Comment
  SEINET11695838  Bromus berteroanus Unknown 1961-1 T.O. 2483 Contra Costa 0.5 mi NW of Martinez, grown at UC Davis agronomy experimental area Comment
  CHSC75136  Bromus carinatus Roger Thom 1987-4-21 3 Contra Costa 3300 block Johnson Rd. Lafayette. 152 Comment
  SEINET7106148  Bromus carinatus Beecher Crampton 1960-3-29 5481 Contra Costa City of El Cerrito, corner of Carlon and Lassen Boulevards.; 0 Comment
  UCD58220  Bromus carinatus P. B. Kennedy 1916-5-21 46 X Contra Costa Between Diablo and Summit. 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
  UC692337  Bromus carinatus var. carinatus Mary L. Bowerman 1935-5-22 3038 Contra Costa w of Twin Peaks (Mount Diablo, Eagle Point Ridge); Mount Diablo, Eagle Point Ridge 304 Comment
  UC697129  Bromus carinatus var. carinatus Mary L. Bowerman 1935-5-1 2947 Contra Costa West Road 6.7 mi from entrance, Mount Diablo West Road; Mount Diablo, West Road 640 Comment
  UC691228  Bromus diandrus Mary L. Bowerman 1935-5-3 2954 Contra Costa below Garden-of-the-Jungle Gods (Mount Diablo, Fossil Ridge); Mount Diablo, Fossil Ridge 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
  UC53679  Bromus hordeaceus H. M. Hall 1901-4-5 1737 Contra Costa San Francisco Bay Region, Mount Diablo Mount Diablo; San Francisco Bay Region, Mount Diablo Comment
  UCD164654  Bromus hordeaceus Henry House 1995-4-30 1995- 29 Contra Costa Approximately 1 km west of Walnut Blvd, about 0.5 km south of Marsh Creek Road. 60 Comment
  UCD58642  Bromus hordeaceus Beecher Crampton 1956-5-14 3379 Contra Costa Head of Horse Valley. 5 miles south of Antioch. Comment
  CAS-BOT-BC162452  Bromus laevipes Mary L. Bowerman 1935-5-30 3095 Contra Costa Mount Diablo. Between the two ridges which converge at Twin Peaks (Eagle Point ridge). 350 Comment
  UCD58906  Bromus laevipes P. B. Kennedy Date Unknown s.n. Contra Costa Pinehurst. Comment
  CAS-BOT-BC162356  Bromus madritensis Mary L. Bowerman 1935-5-22 3037 Contra Costa Mount Diablo. Eagle Point Ridge, canyon at north end which heads into saddle west of Twin Peaks. 304 Comment
  UC691212  Bromus madritensis subsp. madritensis Mary L. Bowerman 1935-5-1 2934 Contra Costa Mount Diablo, West Road,= North Road 2 mi from entrance Mount Diablo; , West Road 182 Comment
  JEPS75534  Bromus madritensis subsp. rubens P. F. Yorks 1974-4-28 1451 Contra Costa 1.7 km s of Bear Creek Road on Hampton Road (n of Briones Reservoir, in Hampton Road Natural Reserve); Hampton Road Natural Reserve Comment
  OBI70550  Bromus madritensis subsp. rubens D. G. Kelch, D. A. Weinstein 2008-4-25 8 .088 Contra Costa Alvarado Park (W end of Wilcat Cyn Park) on N facing hillsidewabove Hindu temple 122 Comment
  UC1024733  Bromus madritensis subsp. rubens Leo Whitney 1935-4-21 3056 Contra Costa Corral Hollow Comment
  RSA655138  Bromus marginatus Beecher Crampton 1956-5-14 3393 Contra Costa 7 miles southwest of city of Antioch, just east of old mining town of Nortonville. Comment
  CAS-BOT-BC162018  Bromus racemosus P. F. Knowles 1942-1-1 B 70 Contra Costa 1 mile west of Rodeo. Davis. Comment
  SEINET3923058  Bromus rigidus Beecher Crampton 1956-5-14 3378 Contra Costa Contra Costa County, 4.6 miles south of the city of Antioch, on Empire Mine Drive, at head of Horse Valley.; 0 Comment
  CAS-BOT-BC161952  Bromus rubens Mary L. Bowerman 1933-4-26 1913 Contra Costa Mount Diablo. North Peak ridge east-southeast of the Peak. 609 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
  JEPS22094  Cakile maritima G. Thomas Robbins 1958-7-19 3905 Contra Costa about 3/4 mi s of Pt. San Pablo Potrero San Pablo, Richmond Point San Pablo Potrero; San Francisco Bay, Point Orient Comment
  POM257267  Calamagrostis rubescens Virginia Long 1933-6-14 222 a Contra Costa Mt. Diablo. Inner Black Hills. Comment
  UCD100165  Calandrinia ciliata Beecher Crampton 1950-4-16 512 Contra Costa Along R.R. embankment, Giant. Comment
  UC570761  Callitriche marginata H. L. Mason 1932-3-16 6810 Contra Costa At east edge Walnut Creek, along S.P. Railroad track Comment
  UC691992  Calochortus Mary L. Bowerman 1933-5-22 2169 Contra Costa e of Knobcone Point (on n-face (2 small ridges w of n ridge)); Mount Diablo, Inner Black Hills Comment
  JEPS102906  Calochortus albus Barbara Ertter with John Ginochio 2002-6-1 17938 Contra Costa Arroyo del Cerro on NW side of mountain, above connector road between Government Road and Olofson Homestead Mount Diablo Comment
  UC768643  Calochortus albus R. F. Hoover 1939-4-26 4067 Contra Costa Head of Markley Canyon (w branch) Markley Canyon Comment
  JEPS102916  Calochortus argillosus Barbara Ertter with Dan Norris 1998-6-18 16209 Contra Costa South Gate Road ca 1 mi from entrance Mount Diablo 304 Comment
  JEPS61754 Image available Calochortus argillosus W. L. Jepson 1923-6-10 9999 Contra Costa Upper Marsh Creek Mt. Diablo Comment
  UC2028218  Calochortus argillosus Barbara Ertter with Christopher Baysdorfer 1998-5-10 16128 Contra Costa West-center Lime Ridge Open Space northwest of Mount Diablo. Comment
  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
  UC2028252  Calochortus argillosus Barbara Ertter, Mary Bowerman, Lisa Schultheis 1998-8-21 16395 Contra Costa Southwest base of Mount Diablo, South Gate Road 0.7 miles from park boundary. Comment
  UC2029142  Calochortus argillosus Barbara Ertter with Alan Prather 2003-6-7 18193 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, Valley View Trail at NE corner of park. Comment
  CAS-BOT-BC132488  Calochortus pulchellus A. D. E. Elmer 1903-6-1 4631 Contra Costa Mount Diablo Comment
  CAS-BOT-BC132506  Calochortus pulchellus John Thomas Howell 1940-4-21 15397 Contra Costa Pine Canyon, Mt. Diablo Comment
  POM170033  Calochortus pulchellus H. M. Hall 1910-5-30 10132 Contra Costa Mt. Diablo, north slope near Pine Canyon 366 Comment
  UC767890  Calochortus pulchellus R. F. Hoover 1938-5-4 3339 Contra Costa Marsh Creek canyon Marsh Creek Comment
  CAS-BOT-BC132495  Calochortus pulchellus Elizabeth McClintock; Wayne Roderick 1967-5-30 s.n. Contra Costa Marsh Creek Road, n. base of Mt. Diablo 76 Comment
  JEPS17793  Calochortus umbellatus W. L. Jepson 1899-4-19 Contra Costa Las Trampas Canyon Comment
  RSA757049  Calochortus umbellatus Rudolf Schmid 1997-4-8 1997 -2 Contra Costa Hillside Natural Area, El Cerrito; southwest of Kent Drive- Regency Ct. entrance, north side of junction of the two main fire roads 145 Comment
  RSA8517  Calochortus umbellatus J. T. Howell 1933-5-14 11261 Contra Costa Hills east of St. Marys college Comment
  UC1779714  Calochortus umbellatus Rudolf Schmid 1997-4-4 1997 -1 Contra Costa Hillside Natural Area, El Cerrito; SW of Kent Dr. - Regency Ct. entrance, N side of juncttion of the two main fire roads. 144 Comment
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Apr 2 2012
  JEPS122392  Calochortus venustus Nisrine Machaka-Houri with Gracie Benson-Martin 2014-5-17 NG 12 Contra Costa Golden Lily Trail, Mitchell Canyon, Mt. Diablo State Park. Comment
  CAS-BOT-BC494048  Calochortus venustus L. R. Abrams 1921-5-25 8054 Contra Costa Near Spring 4 1/2 mi from summit mt Diablo Comment
  UC2028315  Calochortus venustus Barbara Ertter, Susan D'Alcamo 1998-6-12 16156 Contra Costa North Gate Road on west flank of Mount Diablo, ca 1/2 mile below upper Turtle Rock Ranch buildings. Comment
  UC88982  Calycadenia multiglandulosa K. Brandegee 1884-7-1 Contra Costa Antioch Comment
  UC2029105  Calycadenia truncata Barbara Ertter 2000-7-29 17441 Contra Costa Donner Basin on north side of Mount Diablo, ca halfway up Middle Trail. Comment
  HSC104418  Calystegia David Gowen 2005-5-29 396 Contra Costa West of Morgan Territory Rd. and the main entrance to Morgan Territory Regional Preserve; north of summit of hill 2581 (Tassajara Pk.?) Comment
  CAS-BOT-BC224751  Calystegia malacophylla subsp. pedicellata John Thomas Howell 1942-5-24 16964 Contra Costa Near Deer Flat, Mt. Diablo Comment
  JEPS31638  Calystegia purpurata W. L. Jepson 1922-6-7 9720 Contra Costa North Berkeley Hills Comment
  RSA760670  Calystegia purpurata William J. Ferlatte, L. Maynard Moe 1970-4-27 1236 Contra Costa San Francisco Bay, Red Rock Island. Comment
  CAS-BOT-BC215917  Calystegia purpurata subsp. purpurata Alice Eastwood 1915-5-30 4437 Contra Costa Mt. Diablo Comment
  JEPS111813 Image available Calystegia sepium subsp. binghamiae A. G. Murdock 2004-6-4 321 Contra Costa Pacheco Marsh Comment
  UC1034867  Calystegia sepium subsp. binghamiae Ira L. Wiggins 1954-9-5 13123 Contra Costa Levee along Bethel Island; Levee along Bethel Island Comment
  UCD163494  Calystegia sepium subsp. limnophila D. Slakey; CNPS Volunteers 2015-9-12 227 Contra Costa Browns Island, northern part of Crooked Slough. 0 Comment
  UC2031409  Calystegia subacaulis Barbara Ertter 2002-5-16 17856 Contra Costa Richmond Field Station (UC Berkeley), relict coastal grassland at end of Lark Lane Comment
  UC2062681  Calystegia subacaulis Barbara Ertter with Tony Morosco 1998-7-11 16368 Contra Costa North base of Mount Diablo State Park, Coulter Pine Trail just east of Mitchell Rock Trail. 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
  UC764489  Calystegia subacaulis subsp. subacaulis R. F. Hoover 1939-4-25 4059 Contra Costa Richmond Hills 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
  RSA135413  Camissonia campestris subsp. campestris Volney Rattan 1879-1 s.n. Contra Costa Antioch Comment
  UC35393  Camissonia campestris subsp. campestris Chesnut and Drew 1889-4-17 Contra Costa Antioch Comment
  JEPS101167  Camissoniopsis hirtella Dean W. Taylor 1971-3-28 973 Contra Costa Mount Diablo, Mount Diablo State Park, 1 mile south of the South Entrance 457 Comment
  UC692452  Camissoniopsis intermedia Mary L. Bowerman 1933-5-25 2182 Contra Costa steep s-facing slope at w end of s face of ridge Mount Diablo, Oyster Ridge 411 Comment
  CAS-BOT-BC266440  Campanula exigua Mrs. Ernest Meiere 1916-6-1 s.n. Contra Costa Mount Diablo Comment
  JEPS108315  Campanula griffinii David Gowen 2005-5-28 391 Contra Costa Mt. Diablo State Park. Prospectors Gap Road outside of park boundary. Small serpentine area ca 1/4 mile west of junction with Ray Morgan Rd. (dirt). Comment
  SEINET5573395  Caprifoliaceae H. S. Gentry 1931-1 59 Contra Costa Collected near Buckle Point, Mount Diablo. Comment
  RSA128367  Capsella bursa-pastoris P. H. Raven 1950-3-5 1406 Contra Costa 0.75 mile from place where it meets Orinda - Richmond Road, Bear Creek Road. 107 Comment
  CAS-BOT-BC37391  Cardamine californica Alice Eastwood 1923-5-4 s.n. Contra Costa Mount Diablo. 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
  CAS-BOT-BC37396  Cardamine californica Annetta Carter; Helen Sharsmith 1940-3-17 1498 Contra Costa Near Stege railroad station two miles southeast of Richmond. 7 Comment
  SBBG29852  Cardamine californica A. Carter, H. Sharsmith 1940-3-17 1498 Contra Costa near Stege Railroad Stn, 2 mi SE of Richmond 7 Comment
  UC2027753  Cardamine hirsuta Barbara Ertter 1997-2-11 15455 Contra Costa north side of Mount Diablo, Mitchell Canyon trailhead parking area, trodden ground. Comment
  UC1561256  Cardamine oligosperma Barbara Ertter with John Little 1989-4-2 8112 Contra Costa Hillside Park , Hillside Park (El Cerrito) Comment
  UC2028995  Cardamine oligosperma Barbara Ertter 2000-3-30 16912 Contra Costa North side of Mount Diablo, Deer Flat at head of Mitchell Canyon. Comment
  CDA19118  Cardaria chalepensis R. M. Case 2001-5-1 PDR P 088777 Contra Costa Solano Ave., Concord. 0 Comment
  CAS-BOT-BC281735  Carduus pycnocephalus Joseph P. Tracy 1934-4-30 13188 Contra Costa Roadside between Moraga and Lafayette 152 Comment
  JEPS99960  Carduus pycnocephalus subsp. pycnocephalus G. Smick 2003-4-10 GAS 137 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CDA15244  Carduus tenuiflorus G. F. Hrusa, D. Crowe 1998-5-8 14375 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Comment
  JEPS97625  Carduus tenuiflorus Annetta M. Carter, Florence Dickson 1939-5-28 1437 Contra Costa El Cerrito. 7 Comment
  CAS-BOT-BC17998  Carex aquatilis var. dives Brian Atwater 1979-5-6 BA- 198 Contra Costa Between Bethel Island and Holland Tract. 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-BC119016  Carex pellita Walter Knight 1979-6-15 3382 Contra Costa Straight Slough. Browns Island. Comment
  CHSC111020  Carex pendula Barbara Ertter; David Gowen 2010-11-17 20699 Contra Costa Southeast part of Lime Ridge Open Space (City of Walnut Creek), lower end of east-facing drainage below Crystyl Ranch Trail ca 1/4 m N of Paraiso Trail, 37.927 deg. N 121.979 deg. W ca. 180 m (also in spring area in mid drainage, 37.927 deg. N 121.981 deg. W, ca 195 m). 180 Comment
  JEPS111901  Carex praegracilis D. G. Kelch 2005-3-24 05 .64 Contra Costa Point Pinole Southern Pt. Pinole 3 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
  CHSC107307  Carex tumulicola D. G. Kelch 2006-5-5 06 .131 Contra Costa East Bay: Wildcat Canyon Regional Park. Near Wildcat Canyon Road terminus. In grassland near seep area. 122 Comment
  UC1096  Carex tumulicola Jos. Burtt Davy 1897-4-17 Contra Costa Point Isabel Comment
  UCR198216  Carex tumulicola Dean Kelch 2006-5-5 06 .131 Contra Costa San Francisco Bay, East Bay, Wildcat Canyon Regional Park, near Wildcat Canyon Road terminus 122 Comment
  OBI13975  Carpenteria californica Neil Havlik 1968-5-19 201 Contra Costa Tilden Botanical Garden, Charles Lee Tilden Regional Park, E of Berkeley Comment
  JEPS21966  Carthamus tinctorius G. Thomas Robbins with S. Galen Smith 1958-6-2 3850 Contra Costa at junction with U.S. Highway 40 Franklin Canyon Road (State Highway 4) (Hercules (a short distance w of its e boundary)); Hercules, Franklin Canyon Comment
  JEPS19387  Castilleja affinis subsp. affinis G. Thomas Robbins 1937-4-17 119 Contra Costa near Point Richmond Comment
  UC1952816  Castilleja densiflora Barbara Ertter 2010-5-12 19831 Contra Costa Miller Knox Regional Shoreline at south edge of Point Richmond; along West Ridge Trail Comment
  JEPS19401  Castilleja densiflora subsp. densiflora G. Thomas Robbins 1937-4-17 134 Contra Costa near Point Richmond Comment
  UC2070594  Castilleja exserta Barbara Ertter with Steve Matson 2003-3-15 18101 Contra Costa Black Diamond Mines Regional Preserve, west ridge of Rose Hill. Comment
  CDA41324  Castilleja exserta subsp. exserta D. G. Kelch 2004-5-7 4 .187 Contra Costa Carquinez Strait; Canada del Cierbo. Comment
  CDA41325  Castilleja exserta subsp. exserta D. G. Kelch 2005-5-13 5 .239 Contra Costa Carquinez Strait Region; Martinez. South of oil refinery along railroad tracks in fragment of habitat. Comment
  JEPS15607  Castilleja exserta subsp. exserta R. Bacigalupi and G. Thomas Robbins 1955-5-4 4972 Contra Costa e outskirts Concord (field along Treat Lane, in Clayton Valley); Clayton Valley, Concord 60 Comment
  UC41914  Castilleja exserta subsp. exserta Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  UC673440  Castilleja exserta subsp. exserta H. L. Mason 1929-3-15 5059 Contra Costa about 5 mi from Brentwood (along Marsh Creek Road) Comment
  JEPS100148  Castilleja foliolosa G. Smick 2003-2-20 GAS 48 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS15165  Castilleja foliolosa R. C. Wilson 1935-3-14 136 Contra Costa Head of Sycamore Creek; Mt. Diablo Quad. 365 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
  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-BC48832  Ceanothus cuneatus John Thomas Howell 1926-3-7 1664 Contra Costa Mt. Diablo on old wagon road Comment
  CAS-BOT-BC48836  Ceanothus cuneatus Mary L. Bowerman 1932-5-1 1406 Contra Costa Oyster Ridge, outer steep face of Alamo Creek Comment
  CAS-BOT-BC48839  Ceanothus cuneatus C. H. M. 1919-8-24 s.n. Contra Costa Las Trampas Peak Comment
  RSA753076  Ceanothus cuneatus Dylan O. Burge 2007-5-9 DOB- 916 c Contra Costa Mount Diablo State Park: roadside on South Gate Road 1.5 road miles (2.4 km) N of entrance gate, 6.38 km 67 degrees (True) ENE of DAnville. 380 Comment
  UC692592  Ceanothus cuneatus var. cuneatus Mary L. Bowerman 1932-9-3 1531 Contra Costa Muir Area, Mount Diablo Comment
  UC692617  Ceanothus cuneatus var. cuneatus Mary L. Bowerman 1933-4-9 1843 Contra Costa w fork of Dannor Canyon, Mount Diablo Comment
  UC1281425  Ceanothus oliganthus var. sorediatus H. E. McMinn 1922-5-30 108 Contra Costa near Pinehurst (canyon though which runs the Oakland Antioch RR) Comment
  UCD129962  Centaurea benedicta Collector Unknown Date Unknown s.n. Contra Costa Southwest of Kelseyville. Comment
  CDA7090  Centaurea calcitrapa T. C. Fuller 1961-9-13 7000 Contra Costa Highway J4, ca. 4 miles southeast of Byron. 0 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
  UC2027958  Centaurea solstitialis Barbara Ertter with Joanne Kerbavaz 2000-8-20 17495 Contra Costa South side Mount Diablo, ca halfway up South Gate Road. Comment
  CDA36467  Centaurium tenuiflorum Ed Swan 2011-8-18 PDR# 1641228 Contra Costa Orinda; Bear Creek Road near Fire Trail 43-4. 0 Comment
  CDA6636  Centranthus ruber D. G. Kelch, A. G. Murdock 2004-6-19 4 .282 Contra Costa Carquinez Strait Region; Crockett - Tormey Headlands. Along railroad tracks west of Carquinez Bridge Crockett (Valona). Comment
  JEPS111774  Centranthus ruber D. G. Kelch 2004-6-19 04 .282 Contra Costa Crockett-Tormey Headlands. Along railroad tracks west of Carquinez Bridge Crockett (Valona) Contra Costa County CA 20 Comment
  UC1093927  Centromadia fitchii Herbert L. Mason 1929-9-21 5430 Contra Costa 3 mi above Clayton (Marsh Creek Road) Comment
  UC421693  Centromadia fitchii John Thomas Howell 1929-9-21 4388 Contra Costa 1 mi se Clayton Comment
  UC2028098  Centromadia fitchii Barbara Ertter, Chris Thayer 1996-10-25 15375 Contra Costa West side of Mount Diablo, North Gate Road 0.8 road miles NW of Burma Road, spring area with abundant Distichlis, on tributary of Little Pine Creek. Comment
  UC2028246  Centromadia fitchii Barbara Ertter, Tony Morosco 1998-9-18 16416 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, Valley Vista Road entrance. Comment
  CAS-BOT-BC288879  Centromadia parryi subsp. congdonii David D. Keck 1933-11-2 2610 Contra Costa San Ramon, Cow Creek Canyon Rd, 0.5 mile from turnoff Comment
  SD175794  Centromadia pungens D. G. Kelch 2005-11-23 06 507 B Contra Costa Point Molate. 4 Comment
  UCD14671  Centromadia pungens Mick Canaveri 1997-4-1 s.n. Contra Costa near Brentwood. Comment
  UCD19693  Centromadia pungens Donald W. Kyhos 1963-4-11 s.n. Contra Costa 3.6 miles south of Byron Hwy and Byron Hot Springs Rd. Comment
  CAS-BOT-BC279185  Centromadia pungens subsp. pungens David D. Keck 1933-11-2 2613 Contra Costa 3 mi. S. of Martinez on road to Pacheco Comment
  CAS-BOT-BC279198  Centromadia pungens subsp. pungens John Thomas Howell; Gordon H. True 1972-6-29 48920 Contra Costa On Byron Hot Springs Road southeast of Byron Comment
  UC89009  Centromadia pungens subsp. pungens E. L. Greene 1886-5-23 Contra Costa Byron Springs Comment
  CAS-BOT-BC279192  Centromadia pungens subsp. pungens Niall McCarten; V. I. Dains 1986-1-1 03251142 Contra Costa Wl of Camino Diablo & Kellogg Creek Comment
  CAS-BOT-BC279194  Centromadia pungens subsp. pungens H. M. Hall 1923-10-10 11910 Contra Costa East of Byron Comment
  UC89012  Centromadia pungens subsp. pungens Mrs. K. Curran May 1883 Contra Costa Babbs Landing Comment
  CDA29228  Cerastium glomeratum D. G. Kelch 2005-5-13 05 .272-C Contra Costa Carquinez Strait; Above and west of Edwards Canyon, nr Crockett. Comment
  CHSC116614  Cerastium glomeratum Lowell Ahart; Josephine Guardino 2016-4-19 20773 Contra Costa Undesignted section of Canada de Los Vaqueros Land Grant. 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  JEPS51352  Cerastium glomeratum W. L. Jepson 1922-4-16 9600 Contra Costa San Pablo Comment
  UC1948960  Cerastium glomeratum William J. Ferlatte, L. Maynard Moe 1970-4-27 1233 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC1618283  Ceratophyllum demersum Barbara Ertter, Lynne Hosley 1991-9-22 10823 Contra Costa in hills sw of Lafayette (Lafayette Reservoir, at e end of dam); Lafayette Reservoir 137 Comment
  CAS-BOT-BC137010  Cercocarpus betuloides var. betuloides Mary L. Bowerman 1930-6-14 325 Contra Costa Mount Diablo. Summit area Comment
  UC34726  Chaenactis glabriuscula var. glabriuscula Chesnut and Drew Contra Costa Summerville Comment
  CAS-BOT-BC284219  Chaenactis glabriuscula var. megacephala Brandegee No date on the label. s.n. Contra Costa Antioch Comment
  CDA23076  Chamaesyce maculata D. G. Kelch, D. A. Weinstein 2008-5-5 8 .093 Contra Costa Carquinez Strait; Richmond. W Chevy s Hill. N parking lot of Hilltop Mall. Comment
  CDA35253  Chamaesyce ocellata H. R. VanBrocklin 1958-8-6 1000 Contra Costa County Road, about half-way up north side of Mt. Diablo. 0 Comment
  JEPS87912  Chenopodium ambrosioides Barbara Ertter, B. Olson, D. Lake, L. Hosley and A. Youngson 1991-10-20 10883 Contra Costa just w Antioch marina (levee at n-center of preserve, at end of road); Dow Wetlands Preserve Comment
  UC2012997  Chenopodium ambrosioides Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14925 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  UC630416  Chenopodium berlandieri Paule Guiget and Annetta Carter 1939-8-13 1453 Contra Costa Treat Ave. se Concord 53 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
  UC2027885  Chenopodium berlandieri Barbara Ertter, Chris Thayer 1996-10-25 15362 a Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park. Comment
  UC14076  Chenopodium californicum Chesnut and Drew 1889-4-18 Contra Costa Antioch; sand hills Comment
  UC691936  Chenopodium californicum Mary L. Bowerman 1935-3-16 2746 Contra Costa Arroyo del Cerro Mount Diablo (between the fork) 304 Comment
  JEPS111799  Chenopodium murale D. G. Kelch 2005-3-13 05 .46 Contra Costa Crockett - weedy area under Zampa Bridge 4 Comment
  CAS-BOT-BC252678  Chorizanthe membranacea Alice Eastwood 1915-5-30 s.n. Contra Costa Mt. Diablo Comment
  UC1136020  Chorizanthe membranacea C. M. Belshaw 1936-5-8 2057 Contra Costa se slope Mount Diablo; Mount Diablo Quad. Comment
  UC77552  Chorizanthe membranacea Brandegee April, 1889 Contra Costa Mount Diablo Comment
  SD8106  Chorizanthe uniaristata Kate Curran June 1884 Contra Costa Antioch Comment
  CAS-BOT-BC30113  Chrysolepis chrysophylla var. minor W. B. Stephens 1919-11-22 s.n. Contra Costa Moraga ridge Comment
  UC1135219  Chrysolepis chrysophylla var. minor R. W. Lundh 1933-3-2 208 Contra Costa 0.5 mi n Pinehurst; Concord Quad. 304 Comment
  OBI3376  Chrysolepis chrysophylla var. minor Neil Havlik 1969-7-18 501 Contra Costa Moraga Ridge, east of Oakland 335 Comment
  UCD110102  Chrysolepis chrysophylla var. minor J. M. Tucker 1941-9-26 408 Contra Costa Summit of Moraga Ridge. Comment
  JEPS89253  Cicendia quadrangularis J. B. Davy 1900-3-24 6516 Contra Costa Pt. Richmond Comment
  UC22848  Cicendia quadrangularis W. H. Brewer 1862-4-24 993 Contra Costa Martinez; near Camp 68 Comment
  CHSC75054  Cichorium intybus Roger Thom 1987-5-26 16 Contra Costa 1900 block of Geary Rd. Walnut Creek 30 Comment
  CAS-BOT-BC277974  Cirsium cymosum John Thomas Howell 1942-7-19 17039 Contra Costa Near Rock City, Mt. Diablo Comment
  UC691378  Cirsium cymosum var. cymosum Mary L. Bowerman 1935-5-22 3041 a Contra Costa Eagle Point Ridge, canyon at n e of which heads into saddle w of Twin Peaks Mount Diablo 304 Comment
  UC691379  Cirsium cymosum var. cymosum Mary L. Bowerman 1942-6-1 3848 Contra Costa se of Rock City 502 Comment
  UC2070625  Cirsium douglasii var. douglasii 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 18564 Contra Costa Long Ridge on west side of Mount Diablo, stringer below Moses Rock Spring on Burma Road. Comment
  RSA770014  Cirsium occidentale David J. Keil, Barbara Ertter, et al. 2000-6-18 28815 A Contra Costa Mount Diablo State Park. Lower part of Jumper Trail above Laurel Dell picnic area 915 Comment
  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
  JEPS59176  Cirsium occidentale var. californicum W. L. Jepson 1921-5-22 9213 Contra Costa common midway on mountain Mt. Diablo Comment
  CAS-BOT-BC288046  Cirsium occidentale var. venustum L. R. Abrams 1921-5-25 8018 Contra Costa Mt. Diablo Comment
  UC691383  Cirsium occidentale var. venustum Mary L. Bowerman 1931-5-23 899 Contra Costa Oyster Point Mount Diablo, Oyster Point Comment
  JEPS41056 Image available Cirsium quercetorum Rimo Bacigalupi 1965-5-11 9081 Contra Costa Brooks Island (in San Francisco Bay southwest of Richmond). 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
  SEINET11843056  Cirsium vulgare Unknown 1983-1 4989 Contra Costa Castro Ranch Rd between Hillside St. & Alhambra Valley Rd 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
  JEPS107121  Clarkia affinis Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14224 Contra Costa Mt. Diablo, southeast of Walnut Creek, north of Curry Point 518 Comment
  JEPS111563  Clarkia affinis A. G. Murdock 2004-5-28 273 Contra Costa Pinole Peak 405 Comment
  UC2028321  Clarkia affinis Barbara Ertter, Susan D'Alcamo 1998-6-12 16155 Contra Costa North Gate Road on west flank of Mount Diablo near Buckle Point. Comment
  UCD36032  Clarkia amoena Beecher Crampton 1949-7-3 475 Contra Costa San Pablo Creek Valley, east of San Pablo Ridge, along road to Orinda. 76 Comment
  RSA0059973  Clarkia amoena subsp. amoena H. de Forest 1930-6-29 s.n. Contra Costa Dry bank on Tunnel Rd. Comment
  CDA9430  Clarkia biloba D. G. Kelch 1999-6-23 99 .001-D Contra Costa Carquinez Strait; Vaca Canyon along Alhambra Valley Road about 1.5 mile East of Pig Sale. Comment
  UC169380  Clarkia biloba Katharine Brandegee June 1905 Contra Costa Port Costa Comment
  CAS-BOT-BC163610  Clarkia biloba subsp. biloba Mary L. Bowerman 1930-6-22 355 Contra Costa Mitchell Canyon Comment
  CAS-BOT-BC164156  Clarkia concinna A. D. E. Elmer 1903-5-1 4336 Contra Costa Mount Diablo Comment
  SDSU8648  Clarkia concinna D. F. Howe 1968-5-20 4518 Contra Costa 5.6 miles north of contra Costa-Alameda Co. line on Morgan Territory Road. Comment
  UC1819002  Clarkia gracilis subsp. gracilis Barbara Ertter, Tom Delendick 1996-5-2 14612 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
  UC20033  Clarkia modesta F. P. McLean Contra Costa Mt. Diablo Comment
  RSA60760  Clarkia purpurea subsp. purpurea Edward L. Greene 1889-05 s.n. Contra Costa Martinez Comment
  UCSC008679  Clarkia purpurea subsp. purpurea Randall Morgan 1999-6-7 3535 B Contra Costa Byron Comment
  UC692441  Clarkia purpurea subsp. quadrivulnera Mary L. Bowerman 1931-5-19 875 Contra Costa Donner Canyon trail Mount Diablo Comment
  POM300658  Clarkia purpurea subsp. quadrivulnera Mary L. Bowerman 1931-5-23 902 Contra Costa Mount Diablo: Oyster Point, grassy north face Comment
  UC2028319  Clarkia purpurea subsp. quadrivulnera Barbara Ertter, Susan D'Alcamo 1998-6-12 16158 Contra Costa North Gate Road on west flank of Mount Diablo, ca 1/2 mile below upper Turtle Rock Ranch buildings. Comment
  UC2028320  Clarkia purpurea subsp. viminea Barbara Ertter, Susan D'Alcamo 1998-6-12 16157 Contra Costa North Gate Road on west flank of Mount Diablo, ca 1/2 mile below upper Turtle Rock Ranch buildings. Comment
  CDA31846  Clarkia rubicunda D. G. Kelch, Dick Moe, Doug Stone 2001-6-3 1 .024 Contra Costa East Bay.; Brooks Island. Comment
  CAS-BOT-BC165036  Clarkia rubicunda Rimo Bacigalupi s.n. Contra Costa Head of Bear Creek Valley, northern Contra Costa Co. Comment
  SEINET10777205  Clarkia rubicunda Barbara J. Ertter, J. Travis Columbus 1990-6-10 Ertter 9103 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill; jct of Briones Crest and Table Top trails on grassy knoll E of Briones Peak. 427 Comment
  JEPS43602  Clarkia unguiculata W. L. Jepson 1918-6-5 7598 Contra Costa Donner Canyon Mt. Diablo 533 Comment
  UC1586096  Clarkia unguiculata Barbara Ertter with Travis Columbus 1990-6-10 9105 Contra Costa w Pleasant Hill (hillside above junction of Spengler and Blue Oak trail, ne corner of park); Briones Regional Park, Briones Hills 274 Comment
  UC765869  Clarkia unguiculata R. F. Hoover 1937-5-14 2110 Contra Costa Antioch sand-dunes Comment
  RSA144626  Clarkia unguiculata William M. Klein 1958-6-9 439 Contra Costa Rolling coastal sandhills behind the Antioch sewage treatment plant Comment
  RSA448454  Clarkia unguiculata E. E. Stanford 1930-5-24 1510 Contra Costa Marsh Creek Canyon. Comment
  SEINET10492200  Clarkia unguiculata Tim Holtsford 1992-6-13 Holtsford 920613 -1 Contra Costa Morgan territory rd, se of concord, 1.35 mi s of marsh creek rd (clayton rd), 0.1 Mi n of shale cliff court. Roadside pop, n-facing slope with oaks, digger Pines, poison oak. Most flowering over, fruits still green. Comment
  CAS-BOT-BC439164  Claytonia exigua subsp. exigua Mary L. Bowerman 1932-3-12 1110 Contra Costa Mount Diablo. Alamo Canyon 350 Comment
  JEPS48618  Claytonia exigua subsp. exigua Elsa Kraeger 1926-3-7 Contra Costa w side Mt. Diablo Comment
  UC1136707  Claytonia exigua subsp. exigua R. C. Wilson 1935-3-29 162 Contra Costa 1 mi w Deer Flat; Mt. Diablo Quad. 716 Comment
  UC634940  Claytonia exigua subsp. exigua H. L. Mason 1925-3-10 1296 Contra Costa higher slopes Mt. Diablo Comment
  UC692544  Claytonia exigua subsp. exigua Mary L. Bowerman 1932-3-12 1110 Contra Costa Alamo Canyon (e-facing bank 15 ft above the stream) Alamo Canyon; Mount Diablo 350 Comment
  UC692545  Claytonia exigua subsp. exigua Mary L. Bowerman 1932-3-12 1113 Contra Costa Alamo Canyon (50 ft above stream) Alamo Canyon; Mount Diablo 365 Comment
  UC7852  Claytonia exigua subsp. exigua Brewer 1056 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC439162  Claytonia exigua subsp. exigua Mary L. Bowerman 1933-4-15 1875 Contra Costa Mount Diablo. Canyon south of Arroyo del Cerro, about 250 feet below spring Comment
  CAS-BOT-BC439168  Claytonia exigua subsp. exigua John Thomas Howell 1926-3-7 1678 Contra Costa Mitchell Canon [Canyon], Mt. Diablo Comment
  UC2028064  Claytonia gypsophiloides Barbara Ertter with Tony Morosco 1998-4-12 16010 Contra Costa Mount Olympia on north side of Mount Diablo, East Trail along ridge NE of summit. Comment
  CAS-BOT-BC439437  Claytonia parviflora subsp. parviflora Mary L. Bowerman 1932-3-12 1111 Contra Costa Mount Diablo. Alamo Canyon 350 Comment
  CAS-BOT-BC439440  Claytonia parviflora subsp. parviflora John Thomas Howell 1933-5-14 11252 Contra Costa Hills east of St. Mary's College Comment
  UC1948961  Claytonia parviflora subsp. parviflora William J. Ferlatte, L. Maynard Moe 1970-4-27 1232 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC692536  Claytonia parviflora subsp. parviflora Mary L. Bowerman 1933-5-3 1966 Contra Costa Mountain Springs Canyon Mount Diablo (just below the deer trough (Pioneer Road)) Comment
  JEPS73688  Claytonia perfoliata L. R. Heckard with Wm. Hirano and Ted Niehaus 1968-3-5 1757 Contra Costa about 3 mi se Byron at junction of Holey Road (along Byron-Bethany road) 7 Comment
  CAS-BOT-BC439929  Claytonia perfoliata subsp. mexicana John Thomas Howell 1933-5-14 11251 Contra Costa Hills east of St. Mary's Comment
  CAS-BOT-BC440076  Claytonia perfoliata subsp. perfoliata John Thomas Howell 1933-5-14 11273 Contra Costa Hills east of St. Mary's College Comment
  SEINET194968 Image available Claytonia perfoliata subsp. perfoliata A. A. Heller 1908-4-17 8909 Contra Costa Tracey. 10 Comment
  UC1745809  Claytonia perfoliata subsp. perfoliata Annetta M. Carter, Edward Lee 1935-3-29 756 Contra Costa Marsh Creek Rd., 1.2 mi. E of Clayton. Comment
  UC615386  Claytonia perfoliata subsp. perfoliata Beryl O. Schreiber 1932-2-28 32 Contra Costa near Concord Comment
  UC7890  Claytonia perfoliata subsp. perfoliata W. H. Brewer 1862-5-12 1080 Contra Costa 609 Comment
  UC1050211  Clematis flammula N. Floy Bracelin 1941-10-13 1703 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
  CAS-BOT-BC91356  Clematis lasiantha V. Rattan 1883-4-1 s.n. Contra Costa Martinez. Comment
  CAS-BOT-BC91359  Clematis lasiantha H. E. McMinn 1922-6-2 134 Contra Costa Mount Diablo. Comment
  UC545784  Clematis lasiantha Annetta M. Carter 1935-6-1 879 Contra Costa n. slope of main peak Mt. Diablo (w. of Eagle Point) 1005 Comment
  SEINET5547635  Clematis ligusticifolia H. S. Gentry 1931-1 57 Contra Costa Collected near Buckle Point, Mount Diablo. Comment
  RSA0028269  Clinopodium vulgare Barbara Ertter, David Gowen 2012-6-9 21018 Contra Costa Lower Vollmer Peak Trail paralleling South Drive, southeastern Tilden Park in Berkeley Hills. 426 Comment
  SEINET12051855  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
  UC26677  Collinsia bartsiifolia var. bartsiifolia J. Burtt Davy 1895-4-7 877 Contra Costa Antioch Comment
  UC1301183  Collinsia heterophylla Helen K. Sharsmith 1962-4-18 4949 Contra Costa vicinity of Martinez (near McEwen Road); San Francisco Bay Region 106 Comment
  UC691657  Collinsia heterophylla Mary L. Bowerman 1932-5-6 1411 Contra Costa Mount Diablo, floor of Mitchell Canyon Mitchell Canyon; Mount Diablo, Mitchell Canyon 182 Comment
  RSA300992  Collinsia sparsiflora Mary L. Bowerman 1932-3-6 1101 Contra Costa Sycamore Canyon near mouth; West bank. Comment
  UC672467  Collinsia sparsiflora var. collina H. L. Mason 1925-3-10 1295 Contra Costa Mount Diablo. Comment
  UC2027814  Collinsia sparsiflora var. collina Barbara Ertter with Stu Garrett 1997-3-29 15530 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  JEPS6312  Collinsia sparsiflora var. sparsiflora W. L. Jepson 1922-4-16 9599 Contra Costa San Pablo Valley Comment
  UC691624  Collinsia tinctoria Mary L. Bowerman 1935-6-1 3117 Contra Costa summit Mount Diablo Mount Diablo, summit (towards Devils Pulpit) 1158 Comment
  SEINET3860930  Collomia diversifolia David Gowen 2005-5-28 395 Contra Costa Mt. Diablo State Park, on Meridian Ridge Rd. (dirt fire road), east of Murchio Gap.; 0 Comment
  CAS-BOT-BC286022  Conyza canadensis Walter Knight; Irja Knight 1978-8-14 3116 Contra Costa Browns Island Comment
  UC2028010  Conyza canadensis Barbara Ertter 1998-1-4 15888 Contra Costa South end of Diablo Foothills Regional Park southeast of Walnut Creek. Comment
  UC2028030  Conyza canadensis Barbara Ertter 1997-9-14 15802 Contra Costa WSW base of Mount Diablo, along creek at fence line between Pine Ridge and lower Wall Point Road from Macedo Ranch. Comment
  CAS-BOT-BC26795  Cordylanthus nidularius John Thomas Howell 1942-7-19 17044 Contra Costa NE of Deer Flat, Mt. Diablo Comment
  JEPS105307  Cordylanthus nidularius Dean W. Taylor 1994-7-26 14554 Contra Costa Bald Ridge, Mount Diablo State Park 762 Comment
  NY68296  Cordylanthus nidularius J. T. Howell 1942-7-19 17044 Contra Costa Near of Deer Flat, Mt. Diablo. Comment
Read comments
Jul 18 2011
  RSA0006003  Cordylanthus nidularius J. T. Howell 1942-7-19 17044 Contra Costa Northeast of Deer Flat, Mount Diablo Comment
  JEPS21718  Cordylanthus pilosus subsp. pilosus John Thomas Howell 1955-8-24 30902 Contra Costa near Diablo Country Club; Mt. Diablo, S base of Comment
  UC2042771  Cordylanthus pilosus subsp. pilosus Barbara Ertter with Lynne Hosley 1992-8-29 11266 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, in canyon along Coyote Trail Comment
  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-BC287145  Coreopsis stillmanii Brandegee No date on label s.n. Contra Costa Mt Diablo Comment
  CAS-BOT-BC209751  Cornus glabrata Mary L. Bowerman 1935-6-21 3150 Contra Costa Mount Diablo. Arroyo del Cerro, east fork 243 Comment
  UC692510  Cornus glabrata Mary L. Bowerman 1935-3-16 2735 Contra Costa e. fork Arroyo del Cerro Mt. Diablo; , e. fork Arroyo del Cerro 262 Comment
  CAS-BOT-BC209592  Cornus sericea Barrett Anderson 1987-4-30 3489 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD 125 Comment
  CDA38583  Cornus sericea D. G. Kelch 2003-8-13 3 .132 Contra Costa Carquinez Strait; Pinole Creek. Comment
  CAS-BOT-BC210452  Cornus sericea subsp. occidentalis John Thomas Howell 1925-11-7 1559 Contra Costa San Leandro Canyon near Canyon Station Comment
  UC407389  Coronopus didymus Ira L. Wiggins 1930-4-18 4595 Contra Costa e end of Jersey Island, Fallow cornfield Jersey Island Comment
  CAS-BOT-BC190026  Cortaderia selloana Walter Knight 1978-9-19 3247 Contra Costa Browns Island. South Landing. Comment
  UCD37373  Cortaderia selloana Beecher Crampton 1959-9-3 5456 Contra Costa Contra Costa County, 2 miles southeast of El Sobrante, along San Pablo Dam Road. Comment
  CHSC116617  Cotula australis Lowell Ahart; Josephine Guardino 2016-4-19 20799 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. In the middle of the dirt road, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  UC2032849  Cotula coronopifolia Doran, Andrew Scott 2012-3-20 720 Contra Costa Northeast part of Brooks Island, on trail to beach along spit. Comment
  SBBG122841  Crassula aquatica M. Bowerman 1975-9-14 Contra Costa Hidden Pond, Mt Diablo Comment
  UC1561257  Crassula connata Barbara Ertter with John Little 1989-4-2 8110 Contra Costa s. side Hillside Park in El Cerrito Comment
  UC1795806  Crassula tillaea Barbara Ertter, Lisa Schultheis 1995-4-27 14018 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; head of west facing scrub-filled draw (east of golf-course). 182 Comment
  UC1607510  Cressa truxillensis Barbara Ertter with CNPS members 1992-1-19 10895 Contra Costa n.w. corner Concord Naval Weapons Station (Hastings Slough); Hastings Slough Comment
  UC70200  Cressa truxillensis J. Burtt Davy May 1898 Contra Costa region of Mt. Diablo, Danville Comment
  JEPS52457  Croton californicus W. L. Jepson 1923-10-4 10211 Contra Costa Antioch Comment
  RSA181360  Croton californicus James I. McMurphy 1908-10-18 s.n. Contra Costa Antioch. Comment
  CDA35287  Croton californicus Chas. Lasser 1959-9-24 Contra Costa East of Byron, from Bixler Rd. to Old River. 0 Comment
  SEINET7716179  Croton californicus Chesnut, Drew 1889-4-18 Contra Costa Antioch Comment
  JEPS100022  Crypsis schoenoides S. O'Neil 2003-7-27 SEO 42 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC190079  Crypsis schoenoides Walter Knight 1977-7-20 s.n. Contra Costa On Briones Ridge, Briones Regional Park. 304 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
  SEINET4344622 Image available Crypsis schoenoides Barbara Ertter, M. L. Bowerman, L. Schultheis, Kevin Hintsa. 1995-10-22 14532 Contra Costa Three Springs Trail on NE side of Mt. Diablo, south of crest of Marsh Creek Rd. dried roadside pond, clay. Comment
  UC2027889  Crypsis schoenoides Barbara Ertter 1996-10-13 15312 Contra Costa West side Mount Diablo, upper part of North Gate Road. Comment
  JEPS99572  Cryptantha flaccida Mary Bowerman 1991-5-21 Contra Costa Mount Diablo, by Jim White Trail [Deer Flat Rd.] Comment
  UC691401  Cryptantha flaccida Mary L. Bowerman 1932-4-16 1348 a Contra Costa Eagle Point Mount Diablo Comment
  UC691341  Cryptantha microstachys Mary L. Bowerman 1932-4-27 1388 Contra Costa w of Riggs Canyon (canyon, s-face of Oyster Ridge); Mount Diablo, Oyster Ridge 335 Comment
  UC691343  Cryptantha microstachys Mary L. Bowerman 1933-6-3 2226 Contra Costa 2 mi (rd) from Mount Diablo w entrance (= North Gate); Mount Diablo Comment
  UC2042963  Cryptantha muricata Barbara Ertter with David Gowen and Chris Thayer 2014-4-12 21712 Contra Costa Small ridge on north side of Prospectors GAp Road, just north of Ginochio property on east side of Mount Diablo. Comment
  CDA33352  Cuscuta japonica Niang/Slattengreen 2008-8-2 PDR# 1454024 Contra Costa El Sobrante; 5737 Skyview Place (near Richmond city limits?) 0 Comment
  CDA33504  Cuscuta japonica R. Fonseca 2008-10-27 PDR# 1455391 Contra Costa Rodeo; 2 California St. 0 Comment
  UC1949099  Cuscuta pacifica var. pacifica Barbara Ertter with Elizabeth Neese 1988-10-15 7978 Contra Costa Salicornia marsh W of I-580 in El Cerrito, W side along Rydin Road N of Central Avenue Comment
  JEPS25276  Cuscuta salina var. major G. Thomas Robbins 1959-9-13 4163 Contra Costa just e Hercules (ne edge of San Pablo Bay); San Pablo Bay Comment
  UC691908  Cuscuta subinclusa Mary L. Bowerman 1932-10-16 1633 Contra Costa Donner Canyon trail Mount Diablo Comment
  UC1050005  Cydonia oblonga N. Floy Bracelin 1942-4-5 2012 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1055901  Cymbalaria muralis N. Floy Bracelin 1941-4-13 1154 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UCD33766  Cynara cardunculus Beecher Crampton 1972-11-21 8888 Contra Costa 2 miles east of Crockett. Comment
  UCSB21184  Cynoglossum grande Jones, D. 1967-3-25 Contra Costa Mt. Diablo State Park 475 Comment
  UC2061523  Cynosurus echinatus Dean G. Kelch 2016-5-27 16 .139 Contra Costa Miller-Knox Hill. Comment
  CAS-BOT-BC114614  Cyperus eragrostis Thomas Morley 1940-12-3 90 Contra Costa Banks at upper end of San Leandro Lake near mouth of Redwood Creek. 129 Comment
  POM264407  Cyperus eragrostis Thomas Morley 1940-12-3 90 Contra Costa Upper end of San Leandro Lake near mouth of Redwood Creek 130 Comment
  UCD54038  Cyperus eragrostis Mrs. H. P. Kelley 1916-5-25 s.n. Contra Costa S.P. crossing, San Joaquin River. Comment
  RSA605653  Cyperus niger var. capitatus L. C. Wheeler 1952-10-2 7000 Contra Costa Mount Diablo: ca. 0.8 mile up from Turtle Ranch, ca. 1 mile downhill from divide in road. Comment
  CAS-BOT-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
  SD243345  Cytisus striatus D. G. Kelch 2007-4-27 07 202 Contra Costa Martinez; on hill NE of Hwy 4 @ Alhambra Road. 79 Comment
  UC2028280  Cytisus striatus Barbara Ertter with Laura Fujii 1999-3-7 16484 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, near Alvarado Staging area at NW end of park, along hiking road. Comment
  JEPS100018  Dactylis glomerata S. O'Neil 2003-5-8 SEO 33 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA216745  Deinandra bacigalupii Robert F. Hoover 1969-8-29 11564 Contra Costa Raymond Road and Ames Street, Livermore Valley. Comment
  UCD131039  Deinandra bacigalupii Robert E. Preston 1996-7-30 989 Contra Costa on both sides of Greenville Road, 1/2 mile south of I-580. 182 Comment
  CAS-BOT-BC294025  Deinandra kelloggii James I. McMurphy 1909-5-21 s.n. Contra Costa Antioch Comment
  JEPS12619  Deinandra kelloggii Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  SEINET3147522  Deinandra kelloggii K. Brandegee 1907-5-5 19 Contra Costa Near Antioch Comment
  CAS-BOT-BC294015  Deinandra kelloggii Brandegee No date on label s.n. Contra Costa Antioch Comment
  UC691769  Deinandra kelloggii H. L. Mason 1929-3-29 5137 Contra Costa 2 mi above Clayton (Marsh Creek Road) Comment
  CAS-BOT-BC291807  Deinandra lobbii H. M. Hall 1930-6-18 12792 Contra Costa Somerville [Somersville], hills south of Pittsburg Comment
  UC2028960  Deinandra lobbii Barbara Ertter with Brad Olson et al. 2000-6-2 17309 Contra Costa Brushy Peak Regional Preserve NE of Livermore, dry edge of alkali flat. Comment
  UC2029061  Deinandra lobbii Barbara Ertter with Delia Taylor 2003-6-22 18225 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, ridge south of Arata Overlook Trail NE of park headquarters east of Somerville Road. Comment
  LA207418  Delphinium hansenii H. Lewis; Carl Epling 1946-5-5 605 Contra Costa 0.5 mi. S of Somersville Comment
  LA207419  Delphinium hansenii H. Lewis; Carl Epling 1947-5-4 703 Contra Costa Marsh Creek Road, 5.8 mi. E of Creek Park Rd Comment
  LA207422  Delphinium hansenii H. Lewis; Carl Epling 1947-5-4 703 Contra Costa Marsh Creek Road, 5.8 mi. E of Creek Park Rd Comment
  JEPS105715  Delphinium hansenii subsp. hansenii David Gowen 2004-5-10 57 Contra Costa Round Valley Regional Preserve.North-facing slope above the main road through the park, ca. 1/2 mile west of the entry. Comment
  CAS-BOT-BC10306  Delphinium hesperium Mrs. E. C. Wright 1917-6-1 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC10309  Delphinium hesperium Mrs. E. C. Wright 1917-6-1 s.n. Contra Costa Mt. Diablo Comment
  RSA721744  Delphinium hesperium Barbara J. Ertter 1995-5-29 14242 Contra Costa S side Mt Diablo, edge of open meadow in flats near head of Curry Creek along road to Sheepherderss Springs from Sloam Road. 427 Comment
  CAS-BOT-BC10013  Delphinium hesperium subsp. pallescens John Thomas Howell 1931-5-12 6482 Contra Costa North Side of Mt. Diablo Comment
  LA207542  Delphinium hesperium subsp. pallescens H. Lewis; Carl Epling 1944-6-5 sn Contra Costa 1 mi. S of Marsh Creek Rd. on the Beck Rd. to Livermore Comment
  UC9183  Delphinium hesperium subsp. pallescens W. H. Brewer 1862-5-29 1185 Contra Costa near Camp 71; Marsh's Ranch Comment
  CAS-BOT-BC10149  Delphinium nudicaule Miss Mary Leolin Bowerman 1933-6-14 2284 Contra Costa Mount Diablo, Inner Black Hills: second gully west of north spur Comment
  UC596470  Delphinium nudicaule R. F. Hoover 1938-5-4 3340 Contra Costa Marsh Creek canyon Comment
  UCD96542  Delphinium patens P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo Summit. Comment
  RSA148120  Delphinium patens Harlan Lewis, C. Epling 1944-5-6 s.n. Contra Costa 5.7 miles S of Marsh Creek Road on the Beck road to Luieruiore. Comment
  UC1818933  Delphinium patens Barbara Ertter, Brad Olson, Diane Lake 1996-4-14 14595 Contra Costa Sycamore Spring Trail off Prospectors Gap Rd., east side Mt. Diablo. 640 Comment
  CAS-BOT-BC116456  Delphinium patens subsp. patens J. T. Howell 1933-5-14 11279 Contra Costa Hills east of St. Mary's College Comment
  UC692090  Delphinium patens subsp. patens Mary L. Bowerman 1933-5-17 2110 Contra Costa branch of Curry due s Olafsen's barn (w-facing bank 20 ft above stream); Mount Diablo Comment
  UC1314933  Delphinium recurvatum R. F. Hoover 1967-4-28 10511 Contra Costa Byron Hot Springs Comment
  CAS-BOT-BC16940  Delphinium variegatum subsp. variegatum Alice Eastwood 1914-3-14 3790 Contra Costa Byron Springs Comment
  UC60233  Deschampsia cespitosa subsp. beringensis Jos. Burtt Davy 1900-6-7 6667 Contra Costa near Martinez Martinez Comment
Read comments
Sep 27 2007
  UCD62786  Deschampsia danthonioides Beecher Crampton 1968-3-27 8235 Contra Costa SE corner, ca. 3.5 miles south of Byron. Comment
  CAS-BOT-BC192677  Deschampsia danthonioides Mary L. Bowerman 1935-6-28 3164 Contra Costa Chase Pond 548 Comment
  CAS-BOT-BC43126  Descurainia pinnata subsp. brachycarpa Volney Rattan 1879-1-1 s.n. Contra Costa Antioch. 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
  UC692102  Dicentra chrysantha Mary L. Bowerman 1932-9-3 1529 Contra Costa Muir Area; Mount Diablo Comment
  UC72731  Dicentra chrysantha Milo S. Baker 1904-6-24 Contra Costa near Mt. Diablo summit; Mt. Diablo Comment
  POM212448  Dicentra chrysantha Joseph A. Ewan 1933-10-15 8030 Contra Costa South slope of Mt. Diablo 1067 Comment
  RSA128442  Dicentra chrysantha Joanne Taylor 1941-7-18 19 Contra Costa Nortonville. 244 Comment
  JEPS75528  Dichelostemma capitatum P. F. Yorks 1976-3-7 116 Contra Costa ca 2 km s Bear Creek Road (on Hampton Road, in Hampton Road Natural Reserve, n of Briones Reservoir); Hampton Road Natural Reserve 200 Comment
  UC1133877  Dichelostemma capitatum C. M. Belshaw 1936-5-8 2060 Contra Costa se slope Mt. Diablo; Mt. Diablo Quad. 990 Comment
  CAS-BOT-BC500087  Dichelostemma capitatum James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  SEINET8476471  Dichelostemma capitatum subsp. capitatum P. DelMonte 1976-3-28 s.n. Contra Costa Morgan Territory Road, 1 mile S of Curry Creek Park. 152 Comment
  RSA0031305  Dichelostemma congestum Barbara Ertter 2000-5-14 17006 Contra Costa Donner Canyon on north side of Mount Diablo, SW end of Falls Trail between Middle Trail and Donner Creek crossing. 457 Comment
  CAS-BOT-BC502180  Dichelostemma ida-maia E E Smith 1893-1-1 s.n. Contra Costa near Mount Diablo Comment
  CAS-BOT-BC500922  Dichelostemma volubile W. R. Dudley 1893-1-1 s.n. Contra Costa Mount Diablo Comment
  UC1795813  Dichondra donelliana Barbara Ertter, Brad Olson 1994-5-7 12745 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge. Comment
  RSA721369  Dichondra donelliana Barbara Ertter, Gary Schoolcraft 1996-4-7 14574 Contra Costa Pont San Pablo in west Richmond. Comment
  UCD137497  Dipsacus fullonum P. B. Kennedy 1917-2-8 s.n. Contra Costa Craigmont. Comment
  CAS-BOT-BC121844  Dirca occidentalis Charles M. Belshaw 1935-3-3 372 Contra Costa On NE slope of Bald Peak Comment
  JEPS78104  Dirca occidentalis G. W. Zamzow 1973-2-23 126 Contra Costa Wildcat Canyon East Bay Regional Park Comment
  UC1084426  Dirca occidentalis G. Thomas Robbins 1940-3-10 274 Contra Costa n slope Grizzly Peak; Berkeley Hills Comment
  UC766022  Dirca occidentalis R. F. Hoover 1938-3-8 2822 Contra Costa e slope Grizzly Peak ridge Comment
  RSA603002  Dirca occidentalis Joseph A. Ewan 1934-3-10 8643 Contra Costa 2 miles below Orinda Road bridge, Wildcat Canyon Comment
  UCSB26563  Dirca occidentalis Havlik, Neil 1969-3-25 Contra Costa Junction of Grizzly Peak Blvd. and South Park Drive, at the southern end of Tilden Regional Park 487 Comment
  UC400146  Disporum hookeri Ynes Mexia 1929-4-21 2387 Contra Costa Moraga Valley Comment
  UC792333  Disporum hookeri J. A. Rattenbury 1948-3-8 96 Contra Costa on s side of road nr creek 1/2 mi e of Oakland Tunnel 213 Comment
  CAS-BOT-BC208653  Distichlis spicata A. A. Beetle 1941-6-24 s.n. Contra Costa Point Richmond on San Francisco Bay Comment
  RSA0028902  Distichlis spicata Barbara Ertter, Dan Norris 1999-11-14 16851 Contra Costa Black Diamond Mines Regional Preserve, south of parking area for Somersville townsite. Comment
  UC1039536  Dodecatheon clevelandii subsp. patulum Herbert L. Mason 1929-3-15 5044 Contra Costa Nortonville Comment
  UC2062624  Dodecatheon clevelandii subsp. patulum Barbara Ertter with Steve Matson 2003-3-15 18109 Contra Costa Black Diamond Mines Regional Preserve, Black Diamond Trail in SW corner of park. 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
  UC691831  Dodecatheon hendersonii Mary L. Bowerman 1933-4-9 1839 Contra Costa Donner Canyon Mount Diablo, Donner Canyon 243 Comment
  RSA436115  Downingia bacigalupii Thekla Mohr 1917-06 3163 Contra Costa Mt. Diablo. Comment
Read comments
Jan 8 2013
  UC1189259  Downingia insignis John R. Swanson 1958-4-15 236 Contra Costa 3 mi s Byron (at junction of Holey road) Comment
  UC765619  Downingia insignis R. F. Hoover 1937-5-14 2117 Contra Costa Bryon Hot Springs Comment
  RSA436120  Downingia insignis L. S. Rose 1936-4-24 36154 Contra Costa 8 miles S of Antioch. 30 Comment
  UCD54987  Downingia pulchella Peter M. Ray; S. G. Smith and F. Chisaki 1951-4-14 1980 Contra Costa Small pond 7 miles north of Walnut Creek; east of Highway #21; 0.2 mile south of intersection with highway 4. 6 Comment
  RSA721284  Downingia pulchella Barbara Ertter, Tom Delendick 1996-5-2 14607 Contra Costa Spring town wetlands, N of Livermore, along closed section of Hartford Rd. Comment
  CDA42721  Dryopteris arguta D. G. Kelch 2004-9-2 4 .34 Contra Costa Carquinez Strait Region; Martinez - West: Ozol Rock and Scenic Dive. East of Ozol. Comment
  UC692113  Dryopteris arguta Mary L. Bowerman 1930-6-18 342 Contra Costa Dan Cook Canyon; Mt. Diablo Comment
  CAS-BOT-BC70863  Dryopteris arguta D. E. Breedlove 1970-4-18 17443 Contra Costa north edge of Lafayette above Laurel Drive 243 Comment
  UC1015449  Dudleya caespitosa Reid Moran Contra Costa from the garden of Mrs. E. C. Dempster Orinda Comment
  CAS-BOT-BC197109  Echinochloa crus-galli Walter Knight 1978-8-27 3198 Contra Costa Contra Loma Regional Park near Antioch 30 Comment
  UC2029147  Echinochloa crus-galli Barbara Ertter with Dan Norris 1999-11-14 16850 Contra Costa Black Diamond Mines Regional Preserve, south of parking area for Somersville townsite. Comment
  UCD37369  Echinochloa crus-pavonis Beecher Crampton 1959-9-3 5451 Contra Costa Contra Costa County, 2 miles north of city of Orinda, Bear Creek, East Bay Municipal Utilities District Project. Comment
  UC2032845  Echium candicans Doran, Andrew Scott 2012-3-20 716 Contra Costa South part of Brooks Island, old quarry near gravel conveyer belt and grind house. Comment
  UC2027936  Eclipta prostrata Barbara Ertter 1996-9-19 15298 Contra Costa Antioch Marina, edge of Dow Marsh lands. Comment
  CAS-BOT-BC197293  Ehrharta erecta Catherine Best 1990-6-3 s.n. Contra Costa On Ralston Ave. in the hills above Richmond Comment
  UC1949380  Eichhornia crassipes Barbara Ertter 1990-9-16 9642 Contra Costa Junction of Cypress Road & Jersey Island Road E of Oakley Comment
  UC702897  Elaeagnus angustifolia Dr. E. C. Van Dyke 1941-10-4 Contra Costa River e of Antioch Comment
  RSA0011839  Elaeagnus angustifolia E. C. Van Dyke 1941-10-4 s.n. Contra Costa East of Antioch Comment
  JEPS99522  Elatine brachysperma Mary L. Bowerman 1975-9-14 Contra Costa Mount Diablo, Hidden Pond. Comment
  JEPS45767  Elatine heterandra W. L. Jepson 1891-5-22 13954 Contra Costa Walnut Creek Comment
  JEPS111889  Eleocharis macrostachya D. G. Kelch 2004-4-26 04 .140 Contra Costa Point Pinole 3 Comment
  JEPS111903  Eleocharis macrostachya D. G. Kelch 2005-4-24 05 .179 Contra Costa Franklin Canyon. Collier Hill. West Carbon 16 Comment
  CAS-BOT-BC112797  Eleocharis macrostachya Walter Knight 1978-8-19 3233 Contra Costa Upper Sindecich Lagoon. Briones Regional Park. 335 Comment
  JEPS111062  Eleocharis macrostachya Lee Echols 2003-6-20 s.n. Contra Costa Richmond Field Station, SW corner of Danthonia grassland N of Lark Drive 15 Comment
  UC1818864  Eleocharis macrostachya Barbara Ertter, Kristin Ertter 1995-7-11 14471 Contra Costa Sulfur Spring on Pine Cr, Diblo Foothill Regional Park, marshy wet ground. 121 Comment
  CAS-BOT-BC112218  Eleocharis rostellata Miss Mary Leolin Bowerman 1967-7-19 37175 Contra Costa NW end of Shell Ridge, just S of the highway (Heather Farm), by sulphurous stream. Comment
  POM205573  Elymus X gouldii Jos Burtt Davy 1898-05 1742 Contra Costa Port Costa, on a steep bank Comment
  UC691194  Elymus X hansenii Mary L. Bowerman 1935-7-22 3193 Contra Costa Sloan Rd. Mount Diablo, Inner Black Hills (near w end) 533 Comment
  UCD61518  Elymus elymoides P. B. Kennedy 1916-5-21 302 Contra Costa Between Diablo and Summit. Comment
  UC691182  Elymus elymoides subsp. elymoides Mary L. Bowerman 1933-6-14 2273 Contra Costa Curry-Cave Canyon Mount Diablo (ridge between two forks) Comment
  UC1789176  Elymus glaucus Barbara Ertter 2002-6-16 17953 Contra Costa Richmond Field Station, southwest end of overgrown meadow near boundary with park, edge of thick growth facing fence. Comment
  UC691201  Elymus glaucus Mary L. Bowerman 1933-6-21 2333 Contra Costa Donner Canyon Mount Diablo (along stream) Comment
  UC691203  Elymus glaucus Mary L. Bowerman 1935-5-22 3039 Contra Costa Eagle Point ridge Mount Diablo (canyon at n end which heads into saddle w of Twin Peaks) 304 Comment
  CAS-BOT-BC203432  Elymus glaucus subsp. glaucus Mary L. Bowerman 1935-5-16 3009 Contra Costa Mount Diablo. Behind Gabriel-Hinks' (east side of North Peak) 289 Comment
  UC691170  Elymus multisetus Mary L. Bowerman 1933-6-7 2262 Contra Costa North Peak Mount Diablo Comment
  UCD62515  Elymus multisetus Beecher Crampton 1956-5-14 3386 Contra Costa Between the old coal mining towns of Somersville and Nortonville, 6.7 miles southwest of Antioch. Comment
  UC692424  Elymus trachycaulus Mary L. Bowerman 1935-5-18 3030 Contra Costa n summit parkijng area; Mount Diablo 1066 Comment
  CDA2059  Elytrigia repens Margaret Bellue 1948-1 Contra Costa Moraga Del Rey. (Vicinity S.F.) Moraga . 0 Comment
  UC1584692  Epilobium brachycarpum Jerry Powell 1987-11-1 1521 Contra Costa Point Molate Richmond (along railroad bed) Comment
  UCD36037  Epilobium brachycarpum Beecher Crampton 1949-8-5 489 Contra Costa Between the cities of Orinda and Moraga, on Hill Road, off of Moraga Road, right at summit. 106 Comment
  JEPS44006  Epilobium canum subsp. canum W. L. Jepson 1921-11-19 9515 Contra Costa sw slope Mt. Diablo (half-way up) Comment
  POM32526  Epilobium canum subsp. canum A. D. E. Elmer 1903-07 4620 Contra Costa Mount Diablo Comment
  UC1618350  Epilobium canum subsp. canum Barbara Ertter, Brad Olson 1993-10-30 12286 Contra Costa w. of junction San Pablo Ave. & Vista del Rio w. of Crockett (base of bluff above R.R. tracks); Carquinez Strait Regional Shoreline Comment
  UC634754  Epilobium canum subsp. canum H. L. Mason 1924-11-23 1169 Contra Costa Las Trampas Ridge Comment
  CAS-BOT-BC166163  Epilobium canum subsp. canum L. R. Abrams 1910-10-8 4338 Contra Costa Mt. Diablo near Wall Pt. 457 Comment
  CDA38073  Epilobium ciliatum subsp. ciliatum A. G. Murdock 2004-5-28 295 Contra Costa Carquinez Strait; Refugio Valley. Comment
  UC1613486  Epilobium ciliatum subsp. ciliatum Charles M. Belshaw 1936-12-13 2746 Contra Costa near Berkeley Country Club (North Coast Range); North Coast Range 152 Comment
  UC692457  Epilobium ciliatum subsp. ciliatum Mary L. Bowerman 1930-10-4 476 Contra Costa Maple Spring Mount Diablo Comment
  RSA128599  Epilobium ciliatum subsp. ciliatum Peter H. Raven 1950-7-5 2490 Contra Costa On the N road, Mt Diablo 396 Comment
  UC2070464  Epilobium ciliatum subsp. ciliatum Barbara Ertter, Diane Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10699 Contra Costa Browns Island N of Pittsburg near confluence of Sacramento & San Joaquin rivers opposite Pittsburg Marina. Comment
  UC615553  Epilobium densiflorum Beryl O. Schreiber 1933-10-5 936 Contra Costa road to Mount Diablo; marshy ground Comment
  UC692096  Epipactis gigantea Mary L. Bowerman 1931-5-28 906 Contra Costa Castle Rock Ranch Mount Diablo, Pine Canyon (e end, gully to s, on dry waterfall between two pools) Comment
  UCD138951  Epipactis gigantea Terri Williamson 1990-6-2 89 Contra Costa 212 Poshard Street, Pleasant Hill. 12 Comment
  UC692133  Equisetum laevigatum Mary L. Bowerman 1938-6-14 3685 Contra Costa Lower Silver Spring Mt. Diablo 853 Comment
  CAS-BOT-BC57764  Equisetum telmateia Mary L. Bowerman 1939-3-31 3737 Contra Costa Mount Diablo, Johny Walker Spring. 731 Comment
  UC2028554  Equisetum telmateia subsp. braunii Barbara Ertter 1998-11-15 16462 Contra Costa North side Mount Olympia on north side Mount Diablo Comment
  UC2029181  Equisetum telmateia subsp. braunii Barbara Ertter with Alan Prather 2003-6-7 18202 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, creek alongside west end Stone Corral Trail, south of Highland Ridge Trail junction. Comment
  CAS-BOT-BC204547  Eragrostis curvula John Thomas Howell 1954-9-5 30026 Contra Costa Marsh Creek Springs Park Comment
  CDA20135  Ericameria linearifolia E. Fisher 2003-5-12 EF 1 -03 Contra Costa San Francisco Bay Area; Mt Diablo State Park, summit of Mt Diablo. 0 Comment
  JEPS31349  Ericameria linearifolia W. L. Jepson 1918-6-3 7580 Contra Costa Donner Canon Mt. Diablo 609 Comment
  UC36562  Ericameria linearifolia State Survey 1054 Contra Costa Mt. Diablo Comment
  UCD102386  Ericameria linearifolia Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. North Peak Road to North Peak. 920 Comment
  CAS-BOT-BC300590  Erigeron foliosus var. franciscensis L. R. Abrams 1916-6-30 5701 Contra Costa Mt. Diablo near lake Comment
  UC135196  Erigeron foliosus var. franciscensis Katharine Brandegee 1907-6-16 Contra Costa hills bet. Antioch and Marsh Creek 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
  UC761971  Eriogonum angulosum R. F. Hoover 1937-9-2 2713 Contra Costa 4 mi n Antioch Comment
  UC762625  Eriogonum angulosum R. F. Hoover 1940-11-23 4694 Contra Costa Briones Valley Comment
  JEPS112016  Eriogonum fasciculatum subsp. foliolosum Dean G. Kelch and Andrew G. Murdock 2004-3-19 AGM 233 Contra Costa Hercules - Carbon. Comment
  CAS-BOT-BC250382  Eriogonum gracile John Thomas Howell 1929-9-21 4392 Contra Costa Marsh Creek Road 8 miles se. of Clayton Comment
  CAS-BOT-BC250384  Eriogonum gracile John Thomas Howell 1929-7-20 4330 Contra Costa 2 miles s. of Oakley Comment
  UC2027963  Eriogonum gracile Barbara Ertter 1997-8-24 15772 Contra Costa Mount Diablo, near first corner on Summit Road below Toyon Campground. Comment
  UC692017  Eriogonum gracile var. gracile Mary L. Bowerman 1930-6-7 279 Contra Costa summit of Mount Diablo Mount Diablo Comment
  CAS-BOT-BC259139  Eriogonum latifolium John Thomas Howell 1930-7-4 5336 Contra Costa In the north Berkeley Hills Comment
  UC692111  Eriogonum luteolum var. luteolum Mary L. Bowerman 1932-10-22 1637 Contra Costa road to Quicksilver Mine (flats at base of North Peak); Mount Diablo, North Peak Comment
  CAS-BOT-BC268917  Eriogonum nudum var. auriculatum A. D. E. Elmer 1903-7-1 4546 Contra Costa Mount Diablo Comment
  RSA39906  Eriogonum nudum var. auriculatum P. A. Munz 1947-10-8 12204 Contra Costa Sand dunes east of Antioch 8 Comment
  UC692198  Eriogonum nudum var. auriculatum Mary L. Bowerman 1932-10-1 1597 Contra Costa s Uncle Sam Canyon (Eagle Point Ridge); Mount Diablo Comment
  UC692199  Eriogonum nudum var. auriculatum Mary L. Bowerman 1930-6-22 368 Contra Costa Mitchell Canyon trail Mount Diablo 457 Comment
  CAS-BOT-BC268911  Eriogonum nudum var. auriculatum Peter Rubtzoff 1951-10-7 813 Contra Costa 1 to 2 mi. southwest of Moraga Comment
  UC2028205  Eriogonum nudum var. auriculatum Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15662 Contra Costa Point Richmond, crest of road. Comment
  CAS-BOT-BC269819  Eriogonum nudum var. psychicola Peter Rubtzoff 1951-10-7 825 Contra Costa Along lower San Joaquin River, east of Antioch Comment
  UC1926783 Image available Eriogonum nudum var. psychicola Barbara Ertter 1997-8-18 15766 Contra Costa Contra Costa County: Antioch Dunes on San Joaquin River east of Antioch. Comment
  JEPS102909  Eriogonum roseum Barbara Ertter with Tony Morosco 1998-10-18 16436 Contra Costa NE corner of Lime Ridge recreation Area Mount Diablo 182 Comment
  RSA766267  Eriogonum roseum Joseph A. Ewan 1933-10-15 8022 Contra Costa Grassy slope above Indian Ceremonial Spr., Mt. Diablo Comment
  CAS-BOT-BC267441  Eriogonum truncatum John Thomas Howell 1934-4-8 11816 Contra Costa 10 miles from Clayton on Marsh Creek Road Comment
  JEPS56301  Eriogonum truncatum M. K. Curran May 1886 Contra Costa Antioch Comment
  CAS-BOT-BC267872  Eriogonum umbellatum var. bahiiforme A. D. E. Elmer 1903-7-1 4547 Contra Costa Mount Diablo Comment
  CAS-BOT-BC267874  Eriogonum umbellatum var. bahiiforme John Thomas Howell 1942-5-24 16967 Contra Costa Eagle Peak, Mount Diablo Comment
  CAS-BOT-BC262347  Eriogonum vimineum Mary L. Bowerman 1930-9-27 468 Contra Costa Mount Diablo. West base spring Comment
  CAS-BOT-BC262351  Eriogonum vimineum Alice Eastwood 1915-5-30 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC298505  Eriophyllum confertiflorum Mary L. Bowerman 1933-6-3 2224 Contra Costa 2 miles by road from North Gate Comment
  CDA10029  Eriophyllum jepsonii D. G. Kelch 2007-4-28 7 .203 Contra Costa Mitchell Canyon. Mt Diablo. Comment
  UC507128  Eriophyllum lanatum var. achilleoides Lincoln Constance 1933-6-25 E 96 Contra Costa sw slopes of Mount Diablo Comment
  UC507132  Eriophyllum lanatum var. achilleoides Lincoln Constance 1933-6-25 E 100 Contra Costa north slope near summit Mount Diablo 1097 Comment
  CAS-BOT-BC300967  Eriophyllum lanatum var. achilleoides L. Constance 1933-6-25 E 98 Contra Costa Summti of Mt. Diablo 1158 Comment
  JEPS34592  Eriophyllum lanatum var. achilleoides W. L. Jepson 1918-6-5 7608 Contra Costa on the n peak Mt. Diablo Comment
  POM301020  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1938-6-14 3687 Contra Costa Rocky roadside bank 0.3 mile below Muir Area 960 Comment
  POM358034  Eriophyllum lanatum var. grandiflorum E. E. Stanford 1930-5-24 1513 Contra Costa Marsh Creek Canyon. Comment
  JEPS105685  Erodium macrophyllum David Gowen 2003-2-23 s. n. Contra Costa Black Diamond Mines Regional Park, w-facing hillside ca. 1 km due E of Sidney Flat Comment
  UC1130310  Erodium macrophyllum C. M. Belshaw 1936-5-15 2126 Contra Costa 1.75 mi ne Somerville; Mt. Diablo Quad. 152 Comment
  UC606754  Erodium moschatum Edward Lee 1936-4-10 1995 Contra Costa Red Rock San Francisco Bay 54 Comment
  UC1606293  Eryngium articulatum Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10710 Contra Costa n. Pittsburg (Browns Isl., near confluence of Sacramento & San Joaquin rivers, opposite Pittsburg Marina, at water's edge (Botany Cove)); Browns Isl. Comment
  JEPS99526  Eryngium castrense Mary L. Bowerman 1975-9-14 Contra Costa Mount Diablo, Hidden Pond. Comment
  CDA9196  Eryngium jepsonii Christopher Thayer 2000-5-26 s.n. Contra Costa On moist, grassy slope just south of boundary of Rossmoor. Lucas Ranch, Lafayette. 0 Comment
  UC2062646  Eryngium jepsonii Barbara Ertter 2002-11-11 18081 Contra Costa Round Valley Regional Preserve east of Mount Diablo. Comment
  CDA9503  Eryngium spinosepalum D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .23 Contra Costa Byron Airport. Comment
  JEPS97705  Eryngium vaseyi Annetta M. Carter 1951-6-9 3061 Contra Costa 3 mi. S of Byron. Comment
  RSA102133  Erysimum capitatum var. angustatum G. B. Rossbach 1955-3-13 570 Contra Costa Along tidal estuary of San Joaquin River just E of Antioch 24 Comment
  RSA0008584  Erysimum capitatum var. angustatum H. L. Mason 1933-4-9 7189 Contra Costa East of Antioch along the San Joaquin River. 12 Comment
  RSA0008587  Erysimum capitatum var. angustatum Alice Eastwood, J. T. Howell 1936-4-19 s.n. Contra Costa Antioch Comment
  JEPS75891  Erysimum capitatum var. capitatum Dan Cheatham 1977-4-2 Contra Costa easternmost Pacific Gas and Electric tower Antioch Dunes Comment
  SJSU5799  Eschscholzia caespitosa C. O. Dudley 1966-3-30 Contra Costa Briones Hills 10 mi SW of Martinez 182 Comment
  JEPS51776  Eschscholzia californica W. L. Jepson 1907-4-27 2643 Contra Costa San Ramon Valley Comment
  UC125904  Eschscholzia californica Katharine Brandegee 1908-6-16 4 Contra Costa 5 mi s Antioch Comment
  HSC16752  Eschscholzia californica Greg Bos 1963-3-15 39 Contra Costa Albany Hill, Albany 15 Comment
  CDA24555  Eschscholzia californica subsp. californica D. G. Kelch 2006-7-14 6 .335 Contra Costa Between Rte 4 and Carbon Rd. E Rodeo. Comment
  CAS-BOT-BC5937  Eschscholzia recta Mary Katherine (Mrs.) Brandegee 1889-5-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC91578  Eschscholzia rhombipetala Brandegee 1889-4-1 s.n. Contra Costa Antioch. Comment
  UC1613298  Eucrypta chrysanthemifolia var. chrysanthemifolia Charles M. Belshaw 1935-6-24 1022 Contra Costa Sobrante Hills Comment
  HSC83431  Euphorbia oblongata William E. Davis 1981-4-23 Contra Costa Martinez, along Franklin Creek in John Muir National Historic Site. Comment
  UC2028025  Euphorbia ocellata subsp. ocellata Barbara Ertter 1997-9-14 15808 Contra Costa West side of Mount Diablo, ponds along Barbeque Terrace Road in upper Pine Canyon. Comment
  JEPS111958  Euphorbia peplus D. G. Kelch 2005-4-2 05 .102 Contra Costa Crockett - Edwards Canyon EBRP Carquinez shoreline. Edwards Creek staging area 24 Comment
  UC199008  Euphorbia spathulata Chesnut and Drew 1889-4-18 Contra Costa Brentwood Comment
  UC692696  Euphorbia spathulata Mary L. Bowerman 1931-5-2 792 Contra Costa n end Eagle Point ridge; Mount Diablo Comment
  UC1949268  Festuca microstachys Barbara Ertter 1991-5-5 9779 Contra Costa Black Diamond Mines Regional Preserve S of Pittsburg, ridge E of Coal Canyon, N-facing slope Comment
  UC2028572  Festuca microstachys Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15521 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  CDA28219  Festuca rubra A. G. Murdock, D. G. Kelch 2004-5-28 269 Contra Costa Carquinez Strait Region; Pinole Peak. Comment
  CDA33826  Filago pyramidata D. G. Kelch 2010-5-15 10 .125 Contra Costa Mt. Diablo. Trail from Juniper Camp to Deer Flat. 0 Comment
  CHSC75044  Foeniculum vulgare Roger Thom 1987-5-18 13 Contra Costa 1.0mi from intersection with Pleasant Hill Rd on Reliez Valley Road. Lafayette. (1600 block) 182 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
  JEPS42936  Forestiera pubescens Mary L. Bowerman 1936-6-20 3414 Contra Costa ridge w Mt. Zion (on w side of ridge); Mount Diablo 198 Comment
  UC691899  Forestiera pubescens Mary L. Bowerman 1936-6-20 3414 Contra Costa w side of ridge w Mt. Zion; Mount Diablo 198 Comment
  CAS-BOT-BC62921  Frangula californica subsp. tomentella John Thomas Howell 1930-9-28 5490 Contra Costa Marsh Creek Rd., e. of Clayton. Comment
  CAS-BOT-BC62922  Frangula californica subsp. tomentella Alice Eastwood 1915-5-30 4449 Contra Costa Mt. Diablo. Comment
  CAS-BOT-BC223860  Frankenia salina L. R. Abrams 1916-7-1 5730 Contra Costa Near Martinez Comment
  JEPS111552  Fraxinus angustifolia D. G. Kelch 2005-5-13 05 .250 Contra Costa Martinez Martinez. South of oil refinery along Railroad tracks in fragment of habitat 28 Comment
  CAS-BOT-BC223391  Fraxinus dipetala Mary L. Bowerman 1935-6-1 3104 Contra Costa Mount Diablo. First small ridge east of Mitchell-Pine divide 975 Comment
  UC1795649  Fraxinus dipetala Barbara Ertter, Brad Olson, Diane Lake, Seth Adams, et al. 1994-9-11 13081 Contra Costa Chaparral Springs addition to Mt. Diablo State Park, north side of Marsh Creek Road at high point southeast of Clayton, open oak woodland (Canyon live oak, blue oak, buckeye); north facing slope with local grove of Fraxinus, Aesculus, toyon. Comment
  UCD102397  Fraxinus dipetala 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
  UC692003  Fritillaria affinis Mary L. Bowerman 1931-3-8 562 Contra Costa Mount Diablo, near mouth of Mitchell Canyon Mitchell Canyon; Mount Diablo, Mitchell Canyon Comment
  UC3643  Fritillaria agrestis J. Burtt Davy 1895-4-7 987 Contra Costa Antioch, [in the foothills rather than the sand-hills] Antioch Comment
  UC672117  Fritillaria agrestis Herbert L. Mason 1929-3-15 5057 Contra Costa about 5 mi from Brentwood (Marsh Creek Road); Marsh Creek Road Comment
  UC13831  Fritillaria liliacea J. P. Tracy 1900-3-24 612 Contra Costa near Point Richmond (San Francisco Bay Region); San Francisco Bay Region 3 Comment
  CDA19636  Fumaria capreolata M. I. Wibawa 2003-3-1 331 Contra Costa San Francisco Bay Area; Corner of Junction and Hagen, El Cerrito. 45 Comment
  JEPS111523  Fumaria capreolata D. G. Kelch 2005-5-5 05 .208 Contra Costa Point Pinole - Giant Marsh Giant Salt Marsh 3 Comment
  UC1143116  Galium andrewsii subsp. gatense C. M. Belshaw 1936-5-8 2058 Contra Costa se slope Mt. Diablo Quadrangle, Mt. Diablo (Plot 5) Comment
  UC1177368  Galium andrewsii subsp. gatense Peter H. Raven 1950-7-5 2478 Contra Costa near summit Mt. Diablo 1097 Comment
  CDA42131  Galium aparine A. G. Murdock 2004-3-19 223 Contra Costa Carquinez Strait Region; Luzon. Sycamore Avenue just east of Rodeo/Hercules where train crosses Highway 4 (Luzon). Comment
  CDA33985  Galium aparine D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .11 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 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
  JEPS112108  Galium murale D. G. Kelch 2004-3-12 04 .36 Contra Costa Pinole Valley Hillside and canyon above Wright Road. Off of Pinole Valley Road 220 Comment
  UC1795726  Galium murale Barbara Ertter, Mary Bowerman, Lisa Schultheis 1995-3-31 13942 Contra Costa Mount Diablo State Park, lower end of Mitchell Canyon south of Clayton, open oak woodland/grassland open flat area on east side of stream not far from trail head. 182 Comment
  CAS-BOT-BC303370  Gamochaeta ustulata Gordon H. True 1975-6-27 7872 Contra Costa Tilden Regional Park Botanic Garden, Wildcat Canyon Comment
  UC692509  Garrya elliptica Mary L. Bowerman 1931-5-31 908 Contra Costa Rock City Ridge (= Fossil Ridge) Mount Diablo (just back of crest of the s knoll of 1778 point) Comment
  CAS-BOT-BC200622  Garrya elliptica Alice Eastwood 1907-7-1 s.n. Contra Costa Berkeley Hills Comment
  CAS-BOT-BC200628  Garrya elliptica H. E. McMinn 1925-1-30 1397 Contra Costa Thornhill Gulch, Oak. Hills Comment
  UCD121109  Garrya elliptica Beecher Crampton 1957-11-20 4651 Contra Costa Berkeley Hills. Contra Costa- Alameda County line. Comment
  CAS-BOT-BC169942  Garrya fremontii H. E. McMinn 57 Contra Costa Summit Mt Diablo Comment
  CAS-BOT-BC169944  Garrya fremontii Lewis S. Rose 1954-6-29 54084 Contra Costa Mt. Diablo, summit 1170 Comment
  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
  HSC14658  Genista monspessulana D. A. Shally 1965-4-18 39 Contra Costa Canyon, 1 mi. N of Canyon Store Comment
  UC692709  Geranium carolinianum Mary L. Bowerman 1935-5-25 3076 Contra Costa Rhine Canyon Mount Diablo 914 Comment
  CDA23560  Geranium core-core D. G. Kelch, D. A. Weinstein 2008-1-4 8 .001 Contra Costa Carquinez Strait; Pt Pinole. Along asphalt access road. Comment
  JEPS100093  Geranium dissectum S. O'Neil 2003-2-18 SEO 1 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS127101  Geranium dissectum Lowell Ahart, Josephine Guardino 2016-4-19 20776 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Spring USGS 7.5' Quad. Comment
  UC2029180  Geranium purpureum Barbara Ertter with California Botanical Society field trip 2013-4-12 21312 Contra Costa Mount Diablo State Park southeast of Walnut Creek, along east fork Sycamore Creek, roadside of Sycamore Creek road. Comment
  UC1719978  Geranium purpureum Barbara Ertter 2000-5-14 17012 Contra Costa Mount Diablo Regional Park, Falls Trail at Donner Creek crossing 487 Comment
  SBBG122899  Geranium rotundifolium B. Ertter 1996-6-4 14684 Contra Costa NE of jct of Grizzly Peak Blvd and Golf Course Drive, Tilden Regional Park Comment
  RSA34736  Gilia achilleifolia R. C. Rollins 1946-3-25 3045 Contra Costa Sacramento Northern Embarkment, Moraga Canyon, 0.8 miles east of railway tunnel Comment
  UC2028999  Gilia achilleifolia Barbara Ertter 2000-3-30 16918 Contra Costa North side of Mount Diablo, open rocky area ca halfway down Back Canyon Trail from Murchio Gap. Comment
  JEPS69431  Gilia achilleifolia subsp. achilleifolia W. L. Jepson 1899-4-19 15066 Contra Costa Las Trampas Ridge Comment
  UC23730  Gilia achilleifolia subsp. multicaulis Bolander April 1866 6400 Contra Costa Mt. Diablo Comment
  UC30194  Gilia achilleifolia subsp. multicaulis H. N. Bolander 1866-1 6400 Contra Costa Monte Diablo Comment
  RSA566427  Gilia capitata subsp. staminea Peter L. Morrell, Donna S. Krause 1993-5-16 239 Contra Costa Contra Costa County, along sides of raod 100m W of 1701 Wilbur Ave, Antioch, betw Southern Pacific tracks and San Joaquin River (0.5 miles W of Hwy 4/160). Comment
  UC134012  Gilia capitata subsp. staminea C. F. Baker 1903-4-25 2805 Contra Costa Antioch Comment
  UC402614  Gilia capitata subsp. staminea C. L. Swenson April, 1930 Contra Costa Antioch Comment
  UC932019  Gilia capitata subsp. staminea Verne Grant, Alva Grant 1947-4-13 7925 Contra Costa sand hills by railroad tracks e Antioch; e of Antioch 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
  RSA469347  Gilia capitata subsp. staminea H. de Forest 1930-5-6 s.n. Contra Costa [Unspecified] Comment
  SD234478  Gilia clivorum Peter L. Morrell, N. Takebayashi. 1995-5-21 472 Contra Costa Central Coast: S of Clayton in Mitchell Canyon, above the banks of Mitchell Creek and beneath Eagle Peak (Clayton 7.5' Q) 399 Comment
  UC691679  Gilia clivorum Mary L. Bowerman 1935-4-17 2840 Contra Costa North Road 2 mi from North Gate (Mount Diablo); , North Road 289 Comment
  UCR178962  Gilia clivorum Peter L. Morrell, N. Takebayashi 1995-5-21 472 Contra Costa Central Coast, S of Clayton in Mitchell Canyon, above the banks of Mitchell Creek and beneath Eagle Peak 400 Comment
  UC2027715  Gilia clivorum Barbara Ertter with Stu Garrett 1997-3-29 15524 Contra Costa West side Mount Diablo, Burma Road above North Gate Road. Comment
  UC2029000  Gilia clivorum Barbara Ertter 2000-3-30 16919 Contra Costa North side of Mount Diablo, open rocky area ca halfway down Back Canyon Trail from Murchio Gap. Comment
  UC691625  Gilia clivorum Mary L. Bowerman 1933-5-3 1976 -2 Contra Costa due s summit Mount Diablo (Chaparral burn (1931)); Mount Diablo, due s of summit 731 Comment
  CHSC21634  Gilia tricolor Willis Ball 1975-3-9 489 Contra Costa Contra Loma Regional Park. In area #8. Level mound ca. 450 yds s of main parking lot ca. 750 yds w of Contra Loma Blvd. 76 Comment
  UC691589  Githopsis diffusa subsp. robusta Mary L. Bowerman 1931-5-16 851 Contra Costa Mount Diablo Comment
  JEPS11816  Githopsis specularioides Chesnut and Drew 1889-4-16 Contra Costa Clayton Comment
  SEINET10464620  Githopsis specularioides Bowerman 1935-5-18 BOWERMAN 3034 Contra Costa Meridian Peak north of the summit parking area 1067 Comment
  JEPS43109  Glaux maritima J. B. Davy 1900-6-7 6665 Contra Costa Suisun Bay, Martinez Martinez; Suisun Bay, Martinez Comment
  UC22422  Glaux maritima Jos. Burtt Davy 1900-6-7 6665 Contra Costa near Martinez Comment
  CDA27056  Glycyrrhiza lepidota D. G. Kelch, A. G. Murdock 2004-6-6 4 .222 Contra Costa Carquinez Strait Region; Downtown Martinez. Alhambra Creek near bay and railroad station. Comment
  JEPS64809  Glycyrrhiza lepidota W. L. Jepson May 23 1891-May 24 1891 13599 Contra Costa Mt. Diablo Comment
  UC2013053  Glycyrrhiza lepidota Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14920 Contra Costa Northwest base of Mount Diablo access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  JEPS20443  Gnaphalium palustre W. L. Jepson May 23 1891-May 24 1891 14746 Contra Costa near Mt. Diablo Comment
  JEPS99527  Gnaphalium palustre Mary L. Bowerman 1975-9-14 Contra Costa Mount Diablo, in mud of rivulent leading into Sheepherder's Pond from the spring. Comment
  UC1618414  Gnaphalium palustre Barbara Ertter, Brad Olson 1991-9-28 10835 Contra Costa between Orinda and El Sobrante (at s end of San Pablo Reservoir); San Pablo Reservoir 91 Comment
  UC691802  Gnaphalium palustre Mary L. Bowerman 1935-7-22 3189 Contra Costa s side Meridian Peak (Hidden Pond); Mount Diablo 518 Comment
  CDA6050  Grindelia X paludosa D. G. Kelch, A. G. Murdock 2003-8-13 3 .103 Contra Costa Carquinez Strait Region; Martinez Marsh. Comment
  OBI16393  Grindelia camporum Robert F. Hoover 1969-9-1 11569 Contra Costa Between San Pablo and Pinole Comment
  CAS-BOT-BC305226  Grindelia hirsutula Lewis S. Rose 1930-7-22 s.n. Contra Costa Antioch Bridge Comment
  JEPS111662  Grindelia hirsutula A. G. Murdock 2004-5-28 284 Contra Costa Pinole Peak 205 Comment
  JEPS19400  Grindelia hirsutula G. Thomas Robbins 1937-4-17 135 Contra Costa near Point Richmond Comment
  JEPS97539  Grindelia hirsutula R. D. Stone 1983-9-16 579 Contra Costa 4.5 mi SW Byron Hot Springs; Brushy Creek; SE1/4 of NW1/4 152 Comment
  UC1118559  Grindelia hirsutula H. S. Yates 1934-9-2 4079 Contra Costa Wildcat Creek Concord Quad., Wildcat Creek 304 Comment
  UC1118567  Grindelia hirsutula C. M. Belshaw 1936-5-15 2127 Contra Costa 2 1/2 mi nw Lone Tree Valley; Mt. Diablo Quad. Comment
  UC1599357  Grindelia hirsutula G. Thomas Robbins 1959-4-26 4003 Contra Costa just n Richmond-San Rafael Bridge (above shore of San Francisco Bay, s of Castro Pt.); Richmond, Potrero Hills Comment
  UC2013035  Grindelia hirsutula Barbara Ertter with Travis Columbus 1990-6-10 9099 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill; trail heading down ridge on N side of Briones Peak, at junction with Spengler Trail. Comment
  UC63192  Grindelia hirsutula H. M. Hall 1901-3-17 1659 Contra Costa Point Richmond; San Francisco Bay Region Comment
  UC984921  Grindelia hirsutula Ira L. Wiggins 1930-4-17 4577 Contra Costa near Byron Comment
  JEPS20871  Guillenia flavescens J. Burtt Davy 1895-4-7 969 Contra Costa Antioch Comment
  UC137040  Guillenia flavescens Katharine Brandegee 1907-5-4 Contra Costa between Antioch and Marsh Creek Comment
  UC205988  Guillenia flavescens Katharine Brandegee Contra Costa Antioch Comment
  UC691151  Guillenia flavescens Mary L. Bowerman 1933-4-15 1859 Contra Costa second ridge se Arroyo del Cerro; Mount Diablo Comment
  JEPS54107  Guillenia lasiophylla H. P. Chandler 1900-3-24 Contra Costa Briones Hills Region of Mount Diablo Comment
  RSA430115  Guillenia lasiophylla Dr H. de Forest 1930-4-6 s.n. Contra Costa [No locality information provided] 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
  UC74076  Gutierrezia californica Jos. Burtt Davy 1895-4-8 894 Contra Costa Antioch Comment
  POM301854  Gutierrezia californica Mary L. Bowerman 1938-11-12 3729 Contra Costa Lime Ridge toward crest of hillside N of break between 2 chaparral patches. 152 Comment
  UCD132631  Gutierrezia californica Peter Rubtzoff 1954-9-14 1750 Contra Costa Lower San Joaquin River, E of Antioch. Comment
  JEPS127667  Hainardia cylindrica Barbara Ertter with David Gowen and Michael Park 2017-5-2 22814 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  CAS-BOT-BC282858  Hainardia cylindrica E. E. Stanford 1930-5-16 1485 Contra Costa Near Old River Comment
  UC1050450  Hebe hulkeana N. Floy Bracelin 1941-5-4 1277 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  UC1795862  Hedera helix Barbara Ertter 1994-10-23 13915 Contra Costa Southwest El Cerrito, north edge Breuner's parking lot, northwest of Albany Hill. Comment
  UC1795793  Hedypnois rhagadioloides Barbara Ertter, Mary Bowerman 1995-6-11 14249 Contra Costa Shell Ridge Recreation Area southeast of Walnut Creek, at west base Mt. Diablo.; annual grassland near Indian Valley School entrance, clay soil (planted Clarkia also present). 91 Comment
  UC32237  Helenium bigelovii Jos. Burtt Davy 1900-6-7 6671 Contra Costa near Martinez Comment
  UC469034  Helenium bigelovii J. W. Congdon 1895-7-29 Contra Costa Martinez Comment
  CAS-BOT-BC309405  Helenium puberulum L. R. Abrams 1910-10-8 4343 Contra Costa Mt Diablo 609 Comment
  JEPS22068  Helenium puberulum G. Thomas Robbins 1958-7-19 3901 Contra Costa about one-half mi e Point San Pablo (meadow overlooking Pt. San Pablo); Richmond Comment
  UCD132756  Helenium puberulum Malcolm A. Nobs; S. Galen Smith 1949-7-8 949 Contra Costa Otto's Black Bass Resort, 4 miles N of Kingston. Comment
  POM312329  Helenium puberulum Malcolm A. Nobs, S. Galen Smith 1949-7-8 949 Contra Costa Otto's Black Bass Resort, 4 miles north of Kingston. Comment
  CAS-BOT-BC314697  Helianthella californica var. californica Paul F. Covel 1936-4-19 233 Contra Costa Hilltop above L. Trampas Cn. Comment
  JEPS111691  Helianthella castanea D. G. Kelch 2004-3-12 04 .32 Contra Costa Pinole Valley Hillside and canyon above Wright Road. Off of Pinole Valley Road 220 Comment
  UC32256  Helianthella castanea F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  UC88881  Helianthella castanea Alice Eastwood 1897-5-31 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC305373  Helianthus annuus Walter Knight 1978-8-19 3234 Contra Costa Along Fredericksen Lane. Contra Loma Regional Park Comment
  CAS-BOT-BC305606  Helianthus californicus Mary L. Bowerman 1932-9-17 1581 Contra Costa Mount Diablo. Donner Canyon, west fork Comment
  UC1795662  Helianthus californicus Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14628 Contra Costa Little Pine Creek at northwest foot of Mt. Diablo, along trail connecting North Gate Road to Castle Rock Road, Diablo Foothills Regional Park; along stream above stable, riparian vegetation. 91 Comment
  UC2028257  Helianthus gracilentus Barbara Ertter 1999-6-12 16722 Contra Costa Knobcone Point Road on south side of Mount Diablo, burned chamissal at head of NE fork of Sycamore Creek. Comment
  UC1613441  Heliotropium curassavicum Charles M. Belshaw 1935-5-30 947 Contra Costa Island route about 10 mi n of Antioch Bridge Comment
  UC1584687  Helminthotheca echioides Jerry Powell 1987-7-14 1503 Contra Costa Point Molate Beach Comment
  UCD159356  Helminthotheca echioides D. S. Park 2010-6-22 141 Contra Costa Wildwood canyon. Along trailside. Abundant along length of trail. Also growing out of pavement. 55 Comment
  UC201234  Hemizonia congesta subsp. lutescens H. M. Hall 1914-8-23 9860 Contra Costa 2 km nw of town Road to Giant; San Pablo 9 Comment
  UC201235  Hemizonia congesta subsp. lutescens H. M. Hall 1914-8-23 9860 Contra Costa 2 km nw San Pablo 15 Comment
  UC762663  Hemizonia congesta subsp. luzulifolia R. F. Hoover 1937-9-2 2709 Contra Costa Walnut Creek Comment
  CAS-BOT-BC314866  Hemizonia congesta subsp. luzulifolia John Thomas Howell 1925-12-6 1612 Contra Costa Ridge between Redwood Canyon and San Leandro Canyon, Oakland Hills Comment
  UC2029028  Hemizonia congesta subsp. luzulifolia Barbara Ertter 2002-5-11 17833 Contra Costa southwest base of Mount Diablo, lower Dan Cook Canyon, Summit Trail paralleling park boundary. Comment
  SEINET2030221 Image available Hemizonia fitchii L. S. Rose 1941-10-13 1298 Contra Costa 1 mile east of Walnut Creek 50 Comment
  SEINET7883353 Image available Hemizonia obconica L. S. Rose 1941-1 41466 Contra Costa 6 mi W of Byron, on Marsh Creek Rd Comment
  CAS-BOT-BC310161  Hesperevax caulescens Dr. A. Kellogg; W. G. W. Harford 1868-1-1 419 Contra Costa Antioch Comment
  SD9135  Hesperevax caulescens Katherine Curran April 1883 Contra Costa Antioch Comment
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Jan 23 2015
  JEPS116939  Hesperevax caulescens David Gowen 2008-4-21 868 Contra Costa South of Antioch, in Contra Loma Regional Park off Frederickson Lane. North, to northwest facing slope just NW of parking area for Black Diamond Mines Regional Preserve. Comment
  RSA755660  Hesperevax sparsiflora Barbara Ertter 1991-5-5 9784 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, along spur road from Black Diamond Trail on ridge southeast of Coal Canyon 427 Comment
  CAS-BOT-BC310191  Hesperevax sparsiflora var. sparsiflora John Thomas Howell 1930-4-22 4749 Contra Costa Bald Peak Comment
  CAS-BOT-BC167438  Hesperolinon breweri Mrs. Ernest Meiere 1916-6-1 s.n. Contra Costa Mt. Diablo Comment
  UC1212213  Hesperolinon breweri Rimo Bacigalupi and Alex Hawkes 1951-6-4 3360 Contra Costa saddle between main and n peaks Inner South Coast Ranges, Mount Diablo 883 Comment
  UC558458  Hesperolinon breweri Herbert L. Mason 1936-6-14 Contra Costa ridge running s Mount Diablo (head of Creek); Marsh Creek Comment
  CAS-BOT-BC167434  Hesperolinon breweri Mrs. K. Brandegee 1907-6-16 s.n. Contra Costa Hills between Antioch and Marsh Creek, on the easterly side of Mt. Diablo Comment
  CAS-BOT-BC175985  Hesperolinon californicum Mary L. Bowerman 1935-6-28 3160 Contra Costa Inner Black Hills near canyon bottom (opposite old government trail to Chase Pond). Mount Diablo 457 Comment
  CAS-BOT-BC422501  Hesperomecon linearis A. A. Heller 1908-4-16 8890 Contra Costa East of Antioch 22 Comment
  UC579909  Hesperomecon linearis Annetta M. Carter 1933-4-23 298 Contra Costa San Joaquin River, between Antioch Bridge and Antioch Comment
  UC2028265  Heterocodon rariflorum Barbara Ertter 1999-6-12 16715 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
  CAS-BOT-BC143643  Heteromeles arbutifolia W. W. Carruth 1900-6-1 s.n. Contra Costa E. Oakland Hills Comment
  JEPS111693  Heterotheca grandiflora D. G. Kelch 2004-4-3 04 .52 Contra Costa Martinez - Vine Hill West of 680. North of highway 4. 44 Comment
  UC1584840  Heterotheca grandiflora Jerry Powell 1990-3-9 1574 Contra Costa Antioch National Wildlife Refuge Comment
  RSA39828  Heterotheca sessiliflora subsp. echioides P. A. Munz 1947-10-8 12189 Contra Costa Antioch 12 Comment
  UC2027735  Heterotheca sessiliflora subsp. echioides Barbara Ertter 1997-2-16 15458 Contra Costa Shell Ridge Open Space on west flank of Mount Diablo. Comment
  UC2028291  Heuchera micrantha Barbara Ertter, Dan Norris 1998-6-18 16226 Contra Costa Lower Devil's Slide trail along W Fork Sycamore Creek (madrone Canyon), south side of Mount Diablo. Comment
  CAS-BOT-BC424187  Heuchera micrantha var. hartwegii Alice Eastwood 1923-5-4 11706 Contra Costa Mt Diablo Comment
  CAS-BOT-BC203381  Hibiscus lasiocarpos var. occidentalis Vincent Jones 1920-8-29 s.n. Contra Costa Orwood Comment
  CDA7977  Holocarpha heermannii D. G. Kelch, A. G. Murdock 2004-9-2 4 .329 Contra Costa Carquinez Strait Region; McEwen Road from Port of Costa - I-4 near summit of road. 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
  SEINET5782138 Image available Holocarpha heermannii L. S. Rose 1941-10-13 41465 Contra Costa 1 mi E of Walnut Creek Comment
  UC1069570  Holocarpha heermannii R. W. Lundh 1932-9-23 171 Contra Costa 1 mi sw Mt. Diablo; Mt. Diablo Quadrangle 914 Comment
  UC1332423  Holocarpha heermannii P. B. Dickey 1932-9-14 164 Contra Costa Walnut Creek Comment
  UC473456  Holocarpha heermannii John Thomas Howell 1930-9-28 5499 Contra Costa 6.3 mi from Byron (on the Marsh Creek Rd.) Comment
  UC4897718  Holocarpha heermannii Lewis S. Rose 1934-9-9 34462 Contra Costa 9 mi ne Danville Comment
  CAS-BOT-BC325827  Holocarpha heermannii Walter Knight 1977-7-20 s.n. Contra Costa Briones Ridge, Briones Regional Park 304 Comment
  CAS-BOT-BC325839  Holocarpha heermannii R. Bacigalupi 1922-9-24 s.n. Contra Costa Fields between Clayton and Mitchell Canyn, Mt. Diablo Comment
  POM299470  Holocarpha heermannii L. S. Rose 1941-10-13 41465 Contra Costa 1 miles E of Walnut Creek. 50 Comment
  RSA136762  Holocarpha heermannii J. T. Howell 1955-8-24 30901 Contra Costa Near Diablo County Club, south base of Mt. Diablo. Comment
  RSA721867  Holocarpha heermannii Barbara Ertter, Brad Olson, Dianne Lake, Seth Adams 1994-9-11 13096 Contra Costa Chaparral Springs addition to Mt. Diablo State Park, north side of Marsh Creek Road at high point southeast of Clayton. Comment
  UC2029014  Holocarpha heermannii Barbara Ertter 1999-8-21 16792 Contra Costa Deer Flat Trail south of Murchio Gap, NW side of Mount Diablo. Comment
  CAS-BOT-BC320226  Holocarpha macradenia David J. Powers 1974-10-6 1001 Contra Costa 100-400 feet east of highway 80, and 100-300 yards south of Appian Way, Pinole Comment
  SEINET11847624  Holocarpha obconica L. S. Rose 1938-1 38309 Contra Costa Marsh Creek, 8 mi W of Byron 61 Comment
  SEINET10859135 Image available Holocarpha obconica subsp. autumnalis David D. Keck, Jens C. Clausen 1933-10-27 Keck 2567 Contra Costa 1.6 miles W. of Byron, 1.4 mi. from junction with Vasco Road. A pure stand on hillside that bore grain 2 years ago. Comment
  RSA739725  Holocarpha obconica subsp. obconica John Dittes 2006-10-26 1415 Contra Costa San Joaquin Valley (foothills near NW edge) 2 air mile S of Marsh Creek Reservoir Gauging Station, 1.6 air mile SW of intersection of Camino Diablo and Vasco Road, Contra Costa Water District's Los Vaqueros Watershed Mitigation. 67 Comment
  CAS-BOT-BC320332  Holocarpha virgata F. R. Lawson 1930-7-18 s.n. Contra Costa 2.4 mi. west of Concord Comment
  POM179767  Holocarpha virgata subsp. virgata J. T. Howell 1930-9-28 5502 Contra Costa 5.4 miles from Byron on Marsh Creek Road. Comment
  POM299471  Holocarpha virgata subsp. virgata L. S. Rose 1941-10-16 41467 Contra Costa 2 miles W of Byron. 33 Comment
  UC691147  Holodiscus discolor Mary L. Bowerman 1935-6-15 3130 Contra Costa Mount Diablo, ridge running north from Mitchell-Pine divide Mount Diablo 944 Comment
  SEINET11915774  Holodiscus discolor M. T. Doutt 1930-1 76 Contra Costa Marsh Creek Comment
  SEINET5554708  Hordeum brachyantherum J. Hamai 1985-1 s.n. Contra Costa Russell Reserve. Comment
  POM181460  Hordeum depressum I. L. Wiggins 1900-4-7 4569 Contra Costa 2 mi. east of Mountain House on road to Byron. Comment
  CAS-BOT-BC284991  Hordeum depressum Niall McCarten; V. I. Dains 1986-6-1 0413748 114 Contra Costa E. of Byron Hot Springs Rd., East Contra Costa County Comment
  UC2028961  Hordeum depressum Barbara Ertter with Brad Olson et al. 2000-6-2 17304 Contra Costa Brushy Peak Regional Preserve NE of Livermore, at south base of Brushy Peak. Comment
  JEPS100008  Hordeum marinum S. O'Neil 2003-5-8 SEO 27 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site 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
  JEPS70553  Hordeum marinum subsp. gussoneanum W. L. Jepson 1918-6-15 7674 Contra Costa Wild Cat Creek Canyon , Wild Cat Creek Canyon (Berkeley Hills) Comment
  RSA756868  Hordeum marinum subsp. gussoneanum Barbara Ertter, Jim Jokerst, Dave Magney 1989-4-5 8140 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton; near sea level 0 Comment
  UC1132529  Hordeum marinum subsp. gussoneanum C. M. Belshaw 1936-5-7 2049 Contra Costa 2 mi s Danville; Mt. Diablo Quad. Comment
  UC1950126  Hordeum marinum subsp. gussoneanum Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8140 Contra Costa alkali sink W and adjacent to Clifton Court Forebay, ca 15 airmiles SW of Stockton Comment
  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
  UCSB12516  Hordeum murinum subsp. leporinum Grah, Nancy 1962-4-14 Contra Costa .5 miles north of Miner Rd. on Sleepy Hollow Lane, Orinda 182 Comment
  UC70332  Horkelia californica subsp. frondosa Ivar Tidestrom June 1895 Contra Costa Crockett 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
  UC24109  Hydrophyllum occidentale State Survey 1800-1 1176 Contra Costa Mt. Diablo summit; Mt. Diablo Comment
  UC692603  Hypericum formosum var. scouleri Mary L. Bowerman 1930-6-28 395 Contra Costa Mt. Diablo, Lower Silver Spring Comment
  JEPS75561  Hypochaeris glabra P. F. York 1974-4-19 136 Contra Costa 1.7 km s of Bear Creek Rd Hampton Road; Hampton Road Natural Reserve. Briones Reservoir 170 Comment
  CAS-BOT-BC312937  Hypochaeris glabra Ira L. Wiggins 1930-4-18 4596 Contra Costa Levee at east end of Jersey Island Comment
  CAS-BOT-BC311406  Hypochaeris radicata Goodwin; Bellue 1932-5-6 s.n. Contra Costa Unspecified Comment
  UCD133458  Hypochaeris radicata Goodwin-Bellue 1932-5-6 s.n. Contra Costa exact location unknown. Comment
  CAS-BOT-BC133497  Iris Walter Knight; Joanne Dean 1978-8-14 3152 Contra Costa Browns Island Comment
  UC4290  Iris longipetala J. Burtt Davy Apr 1897 Contra Costa Point Isabel Comment
  CAS-BOT-BC324753  Iva axillaris Morris Halperin 1930-5-20 s.n. Contra Costa Hoffman Ranch, Brentwood Comment
  UCD133394  Iva axillaris Collector Unknown Date Unknown s.n. Contra Costa Exact location unknown. Comment
  UC1050492  Jovellana violacea N. Floy Bracelin 1942-5-24 1412 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  UC1197943  Juglans californica var. hindsii Joseph P. Tracy 1933-12-1 13130 Contra Costa along creek between Lafayette and Moraga 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
  SJSU6440  Juglans hindsii C. O. Dudley 1966-5-8 109 Contra Costa Reliez Valley, Briones Hills, N of Lafayette 152 Comment
  UC691984  Juncus ambiguus Mary L. Bowerman 1930-6-10 292 Contra Costa Mount Diablo, Mineral Spring Mineral Spring; Mount Diablo, Mineral Spring Comment
  UCD146718  Juncus ambiguus G. F. Hrusa; D. Crowe 1998-5-8 14365 Contra Costa Sacramento-San Joaquin River Delta. Near San Joaquin River shore within Dow Chemical Property at Pittsburg. 10 Comment
  CDA15236  Juncus balticus G. F. Hrusa, D. Crowe 1998-5-8 14367 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg. Comment
  JEPS112455  Juncus bufonius D. G. Kelch 2005-3-24 05 .51 Contra Costa Pt. Pinole near wharf 2 Comment
  JEPS66915  Juncus bufonius var. bufonius Burtt Davy 1895-4-7 948 a Contra Costa Antioch Comment
  UC1819013  Juncus bufonius var. bufonius Barbara Ertter, Mary Bowerman et al. 1995-5-7 14040 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, damp road bed, clayey, in grassy flat south of pond, near edge of blue oak forest. Comment
  POM300636  Juncus effusus subsp. pacificus Mary L. Bowerman 1938-6-30 3705 Contra Costa Plants of Mount Diablo; Indian Ceremonial Spring. Comment
  UC2028458  Juncus effusus var. pacificus Barbara Ertter with Joanne Kerbavaz and Mary Bowerman 2000-8-20 17514 Contra Costa South side Mount Diablo, Green Ranch Road at Meridian Springs Creek crossing Comment
  UC692075  Juncus mexicanus Mary L. Bowerman 1933-4-22 1884 Contra Costa nw end Shell Ridge (s of the highway (Heather Farm)); Mount Diablo Comment
  UC1601775  Juncus occidentalis Jos. Burtt Davy 1897-4-17 Contra Costa Point Isabel Comment
  UC1795655  Juncus occidentalis Barbara Ertter, Gary Schoolcraft, Tony Morosco 1996-4-6 14566 Contra Costa West end Oyster Point Rd in Mt Diablo State Park, moist meadow just east of junction. Comment
  SEINET6174578  Juncus patens M. L. Bowerman 1932-11-26 1674 Contra Costa Patens Spring (on north side of west road between Corral Spring and Boulevard Spring) Comment
  UC2028371  Juncus phaeocephalus var. paniculatus Barbara Ertter 1998-6-20 16236 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Alkali Pond at Wiget Lane entrance, Comment
  UCD32427  Juncus phaeocephalus var. paniculatus Beecher Crampton 1950-6-10 590 Contra Costa 1 mile north of Richmond, along Santa Fe R.R. Comment
  CDA15284  Juncus phaeocephalus var. phaeocephalus G. F. Hrusa, D. Crowe, R. York 1998-7-17 14722 Contra Costa Sacramento Delta; Antioch-Pittsburg Hwy. at E end of Dow Chemical property. Comment
  UC2046369  Juncus usitatus Barbara Ertter 2015-10-9 22456 Contra Costa N end of walkway on east edge of Dow Marsh west of Antioch marina on San Joaquin River Delta. Comment
  JEPS112433  Juncus xiphioides D. G. Kelch 2004-7-9 04 .307 Contra Costa Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite 60 Comment
  UC2029085  Juncus xiphioides Barbara Ertter 2000-7-16 17407 Contra Costa Pine Creek on WNW base of Mount Diablo Comment
  UC692074  Juniperus californica Mary L. Bowerman 1933-11-9 2470 Contra Costa between Sheepherder's Spring and Chase Pond (on the w side of canyon); Mount Diablo Comment
  POM300616  Juniperus californica Mary L. Bowerman 1930-9-9 449 Contra Costa Mount Diablo: North Peak above Gabriel-Hinks : at top of a draw Comment
  UC1051219  Justicia carnea N. Floy Bracelin 1942-9-20 2310 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UCSB6170  Keckiella corymbosa Keator, Glenn 1959-7-1 Contra Costa 1/4 mile above Laurel camp on Mt. Diablo Comment
  SD243323  Kochia scoparia C. Thayer, Erin McDermott 2006-8-23 82306 a Contra Costa Antioch, northwest corner of Deer Valley Road and Lone Tree Way. Also noted near front of Prewett Family Water Park, 0.4 miles east near Aqueduct right of way. (CCCDA mostly eradicated both colonies in September). 45 Comment
  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
  JEPS70570  Koeleria macrantha W. L. Jepson 1918-6-5 7601 Contra Costa Donner Canyon Mt. Diablo; vicinity of San Francisco Bay, Mt. Diablo 533 Comment
  UC692396  Koeleria macrantha Mary L. Bowerman 1935-5-22 3036 Contra Costa Eagle Point ridge, canyon at n end which heads into saddle w of Twin Peaks, little above the canyon bottom Mount Diablo; , Eagle Point ridge 304 Comment
  UCD38576  Koeleria macrantha Beecher Crampton 1956-5-14 3394 Contra Costa 3.7 miles southeast of Clayton. Comment
  CAS-BOT-BC273612  Koeleria pyramidata Mary L. Bowerman 1932-4-16 1354 Contra Costa Mount Diablo. Eagle Point ridge above Twin Peaks (1682 point) Comment
  CAS-BOT-BC273614  Koeleria pyramidata Mary L. Bowerman 1933-5-2 1962 Contra Costa Mount Diablo. Below Pioneer Camp 762 Comment
  CAS-BOT-BC273618  Koeleria pyramidata Walter Knight 1972-4-1 s.n. Contra Costa Mallard Slough between Port Chicago and Pittsburg Comment
  CAS-BOT-BC499189  Kopsiopsis strobilacea D. E. Breedlove 1970-1-21 17141 Contra Costa Canyon above Moraga Comment
  JEPS100181  Lactuca serriola A. Langston 2003-8-26 AL 85 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS75560  Lactuca virosa P. F. Yorks 1975-9-18 496 Contra Costa 1.9 km s Bear Creek Road (on Hampton Road in Hampton Road Natural Reserve, n of Briones Reservoir); Hampton Road Natural Reserve 200 Comment
  UC2029078  Lactuca virosa Barbara Ertter 2000-7-16 17402 Contra Costa Lower Pine Creek in Diablo Foothills Regional Park. Comment
  UC2029174  Lactuca virosa Barbara Ertter 2000-7-29 17443 Contra Costa Donner Basin on north side of Mount Diablo, Falls Trail at east fork of Donner Creek (between main fork and Wild Oat Canyon), trickle of surface water. Comment
  UC1618293  Lagophylla ramosissima Barbara Ertter 1990-9-10 9636 Contra Costa eroded n-facing draw between Sindicich lagoon and Maricich lagoon (s of Martinez); Briones Regional Park, Briones Hills 335 Comment
  JEPS99544  Lamium amplexicaule Mary Bowerman 1991-4-13 Contra Costa Mount Diablo. Frog Pond fire road between Sloan Rd. (Curry Canyon Rd.) and Sheepherder Spring & Pond. Comment
  UCD125108  Lamium amplexicaule Terri Williamson 1990-4-15 9 Contra Costa 212 Poshard St. Pleasant Hill. 12 Comment
  CDA42441  Lamium purpureum D. G. Kelch, Daniel Weinstein 2013-3-9 13 .018 Contra Costa Carquinez Strait; Crockett. Comment
  CAS-BOT-BC337980  Lasthenia californica James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  UC1795667  Lasthenia californica Barbara Ertter, Mary Bowerman et al. 1995-5-7 14060 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, small serpentine patch at road junction Comment
  JEPS25123  Lasthenia californica subsp. californica G. Thomas Robbins 1959-4-18 3989 Contra Costa hillslopes above and about 1/2 mi e Pt. San Pablo; Richmond 30 Comment
  JEPS85834  Lasthenia ferrisiae Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8124 Contra Costa alkali sink w and adjacent to Clifton Court Forebay (ca 15 air mi sw of Stockton) Comment
  CDA8115  Lasthenia fremontii D. G. Kelch 1992-3-21 1826 -A Contra Costa 2.5 mi. SE of Byron; along RR tracks, N of junction of Holey Rd. and Byron Hwy. 0 Comment
  CAS-BOT-BC353326  Lasthenia fremontii Niall McCarten; V. I. Dains 1986-1-1 23 Contra Costa Grassland, W of Camino Diablo & Keloogg Creek. Comment
  UCD133741  Lasthenia fremontii Ira L. Wiggins 1930-4-17 4579 Contra Costa 1/4 mile south of Byron. Comment
  JEPS35363  Lasthenia glaberrima W. L. Jepson 1892-5-24 Contra Costa Mt. Diablo Comment
  POM301039  Lasthenia glaberrima Mary L. Bowerman 1935-6-21 3153 Contra Costa Mount Diablo: South of Turtle Rock, pool east of main pond Comment
  JEPS17268  Lasthenia glabrata subsp. glabrata R. F. Hoover 1936-4-16 974 Contra Costa e slope Bald Peak Comment
  UC1618392  Lasthenia glabrata subsp. glabrata Barbara Ertter, Chris Thayer 1993-5-7 11705 Contra Costa 1/2 mi n of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land e of Tilden Park 457 Comment
  POM301015  Lasthenia microglossa Mary L. Bowerman 1932-3-27 1141 Contra Costa Mitchell Rock. Comment
  UC30472  Lasthenia minor F. T. Bioletti 1892-1 Contra Costa Byron Comment
  CAS-BOT-BC366306  Lasthenia minor J. T. Howell 1933-3-29 10895 Contra Costa Nortonville Comment
  JEPS9811  Lasthenia minor Anna E. Ehlers 1920-4-18 557 Contra Costa near Mt. Diablo; Pine Canyon Comment
  POM361581  Lasthenia minor L. S. Rose 1933-3-29 33039 Contra Costa Nortonville. Comment
  CAS-BOT-BC213349  Lathyrus jepsonii subsp. californicus Volney Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley Comment
  UC2027834  Lathyrus jepsonii var. californicus Barbara Ertter 2001-5-10 17635 Contra Costa North flank of Mount Diablo, SE of Mitchell Canyon trailhead, on traversing road to Mitchell Rock Trail. Comment
  CAS-BOT-BC205016  Lathyrus jepsonii var. jepsonii Walter Knight 1978-8-14 3124 Contra Costa Browns Island Comment
  JEPS112330  Lathyrus latifolius Dean G. Kelch and Andrew G. Murdock 2004-6-19 04 .284 Contra Costa Crockett - Tormey Headlands; County: Contra Costa; North-facing hill above / along railroad tracks. West of Carquinez Bridge. Crockett contra Coasta Country CA. Comment
  UCD35904  Lathyrus vestitus Beecher Crampton 1966-4-26 7667 Contra Costa ca. 2.5 miles west of Martinez on the road to Crockett. Comment
  JEPS64865  Lathyrus vestitus var. vestitus W. C. Blasdale 1897-5-1 Contra Costa Point Isabel Comment
  UC15363  Lathyrus vestitus var. vestitus W. H. Brewer 1862-4-30 Contra Costa Monte Diablo Comment
  UC692312  Lathyrus vestitus var. vestitus Mary L. Bowerman 1933-6-3 2239 Contra Costa Ransom Point ridge Mount Diablo Comment
  UC692675  Lathyrus vestitus var. vestitus Mary L. Bowerman 1931-3-7 552 Contra Costa by South Road just below junction Mount Diablo Comment
  UC85314  Lathyrus vestitus var. vestitus C. F. Baker 1903-4-28 2944 Contra Costa Mitchell Canyon Mt. Diablo Comment
  JEPS55368  Lathyrus vestitus var. vestitus W. L. Jepson 1891-6-9 13633 Contra Costa e side Berkeley Hills (at the Fish Ranch) Comment
  CAS-BOT-BC323911  Layia chrysanthemoides C. F. Baker 1903-4-27 2903 Contra Costa Byron Comment
  CHSC23345  Layia chrysanthemoides Willis Ball 1975-3-22 497 Contra Costa In area #5. Field ca. 200 yds due e of main boat ramp. 36 Comment
Read comments
May 24 2013
  UC650363  Layia chrysanthemoides Ira L. Wiggins 1930-4-17 4572 Contra Costa s Byron Comment
  UC761862  Layia chrysanthemoides R. F. Hoover 1939-4-25 4065 Contra Costa Richmond Hills Comment
  UC89156  Layia chrysanthemoides C. F. Baker 1903-4-27 2903 Contra Costa Byron Comment
  UC2042770  Layia gaillardioides Barbara Ertter with Chris Thayer 1993-5-7 11706 Contra Costa Ca 1/2 mile north of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land east of Tilden Park. Comment
  JEPS13426  Layia glandulosa R. F. Hoover 1937-5-14 2115 Contra Costa Comment
  UC202677  Layia glandulosa unknown 1889-4-15 Contra Costa Comment
  UC614822  Layia glandulosa Beryl O. Schreiber 1932-3-27 161 Contra Costa Comment
  RSA394722  Layia glandulosa subsp. glandulosa Annetta Carter 1933-4-23 300 Contra Costa Above the San Joaquin River, between Antioch Bridge and Antioch. Comment
  CAS-BOT-BC327245  Layia hieracioides M. K. Curran 1884-1-1 s.n. Contra Costa Plants of Mount Diablo. South of Turtle Rock, pool east of main pond: In belt of Eleocharia palustris. Comment
  UC1069769  Layia platyglossa C. M. Belshaw 1936-5-8 2064 Contra Costa se slope Mt. Diablo; Mt. Diablo Quad. Comment
  UC691490  Layia platyglossa Mary L. Bowerman 1931-5-7 811 Contra Costa grassy area near saddle on side North Peak; Mount Diablo, Meridian-North Peak saddle Comment
  UC691556  Layia platyglossa Mary L. Bowerman 1931-5-16 853 Contra Costa open spaces on s side Meridian Peak summit; Mount Diablo, Meridian Peak summit Comment
  UC89326  Layia platyglossa C. F. Baker 1903-5-28 2874 Contra Costa Antioch Comment
  UC89330  Layia platyglossa Brandegee Apr 1889 Contra Costa Antioch Comment
  CAS-BOT-BC370669  Layia platyglossa Mary L. Bowerman 1935-4-26 2918 Contra Costa Summit of Mount Diablo Comment
  SEINET10759869  Layia platyglossa John T. Middleton 1936-4-18 Middleton 143 Contra Costa Deer Valley, Ca. Comment
  POM53355  Layia platyglossa subsp. platyglossa C. F. Baker 1903-5-28 2874 Contra Costa Antioch. Comment
  SACT001393  Leersia oryzoides Malcolm Nobs 1948-9-23 Contra Costa Growing in shallow water along slough bank, just coming to bloom. 7 miles south Kingston. Comment
  UC692107  Lemna minuscula Mary L. Bowerman 1933-11-4 2459 Contra Costa Alder Springs, (most easterly of the springs) Alder Springs; Mount Diablo, Alder Springs 487 Comment
  RSA248647  Lepechinia calycina Bonnie C. Templeton 1962-6-10 s.n. Contra Costa Mt Diablo. Comment
  CAS-BOT-BC88702  Lepidium acutidens Alice Eastwood 1914-3-14 3771 Contra Costa Byron Springs. Comment
  CAS-BOT-BC88706  Lepidium acutidens Lewis S. Rose 1933-3-29 33041 Contra Costa Nortonville. Comment
  OBI60003  Lepidium acutidens Joseph Andorfer Ewan 1935-3-10 9136 Contra Costa Donovan rd Kicker Pass Comment
  SBBG29865  Lepidium dictyotum A. M. Carter 1935-3-10 753 Contra Costa Kirker Pass Rd, S of jct with Nortonville Rd 121 Comment
  CHSC67910  Lepidium dictyotum var. acutidens James D. Jokerst 1989-3-29 3068 Contra Costa 0.25 mi S of Byron Hot Springs NE of Livermore. Comment
  CHSC67911  Lepidium dictyotum var. acutidens James D. Jokerst 1989-3-29 3069 Contra Costa 0.25 mi S of Byron Hot Springs NE of Livermore. Comment
  JEPS21344  Lepidium dictyotum var. acutidens J. Burtt Davy May 1898 Contra Costa Danville Mount Diablo Region Comment
  JEPS76804  Lepidium latifolium R. Ornduff and Douglas W. James Jr. 1978-6-18 Contra Costa s end Point Pinole Regional Park; San Francisco Bay Comment
  UC1607701  Lepidium latifolium Barbara Ertter 1991-5-12 9810 Contra Costa sw corner El Cerrito (Point Isabel Regional Shoreline, n of park); San Francisco Bay, Point Isabel Regional Shoreline Comment
  POM300576  Lepidium latipes Mary L. Bowerman 1933-4-15 1846 Contra Costa Canyon S of Arroyo del Cerro Comment
  UC2070568  Lepidium latipes Barbara Ertter with David Gowen, J. Ginochio, M. Park, S. Matson, A. Moore, S. D'Alcamo, J. Greenhouse, K. Kersh and J. Gawthrup 2005-5-8 18572 Contra Costa Long Ridge on west flank of Mount Diablo, near springs and pond on Ginochio property near park boundary. Comment
  CAS-BOT-BC89889  Lepidium nitidum Alice Eastwood 1914-3-14 3766 a Contra Costa Byron Springs. Comment
  CAS-BOT-BC89891  Lepidium nitidum Alice Eastwood 1914-3-14 s.n. Contra Costa Byron Springs. Comment
  CAS-BOT-BC89892  Lepidium nitidum Alice Eastwood 1914-3-14 3775 Contra Costa Byron Springs. Comment
  CAS-BOT-BC89896  Lepidium nitidum Lewis S. Rose 1933-3-29 33045 Contra Costa Pittsburg. Comment
  UC10675  Lepidium nitidum F. T. Bioletti 1892-1 Contra Costa Byron Comment
  UC1157922  Lepidium nitidum Olive Dyer 1937-3-6 214 Contra Costa upper end Wildcat Canyon Comment
  UC691079  Lepidium nitidum Mary L. Bowerman 1931-2-8 506 Contra Costa West road (= North Rd) Mount Diablo Comment
  UC796578  Lepidium nitidum Reed C. Rollins 1946-3-25 3044 Contra Costa Mount Diablo, western slope Mount Diablo Comment
  UC796583  Lepidium nitidum Reed C. Rollins 1946-3-25 3042 Contra Costa Mount Diablo, western slope Mount Diablo Comment
  CAS-BOT-BC89899  Lepidium nitidum Reed C. Rollins 1946-3-25 3042 Contra Costa Western slope of Mount Diablo. Comment
  RSA0033847  Lepidium nitidum var. nitidum Barbara Ertter 2000-3-30 16922 Contra Costa North side of Mount Diablo, Bruce Lee Road between Back Canyon Trail and Coulter Pine Trail. Comment
  SEINET12006190  Lepidium oblongum H. M. Hall 1901-1 1741 Contra Costa Mt. Diablo, region of San Francisco Bay Comment
  CDA23067  Lepidium strictum D. G. Kelch, D. A. Weinstein 2008-5-5 8 .092 Contra Costa Carquinez Strait; Richmond. W Chevy s Hill. N parking lot of Hilltop Mall. Comment
  UC2031424  Leptosiphon androsaceus Barbara Ertter 1991-6-1 10085 Contra Costa Las Trampas Regional Wilderness in hills W of Danville, Elderberry Trail ca. 1/2 mi from trailhead Comment
  POM65854  Leptosiphon liniflorus C. F. Baker 1903-4-27 2864 Contra Costa Byron. Comment
  CAS-BOT-BC324119  Lessingia glandulifera var. glandulifera T. S. Brandegee 1883-1-1 s.n. Contra Costa Antioch Comment
  JEPS100183  Lessingia glandulifera var. glandulifera David Gowen 2004-5-11 58 Contra Costa Lime Ridge Open Space; Ridge trail in the N section of the park and S of the water tank Comment
  UC87926  Lessingia pectinata var. tenuipes T. S. Brandegee 1890-5-1 Contra Costa Brentwood Comment
  CAS-BOT-BC444384  Lewisia rediviva Paul F. Covel 1938-7-1 1519 Contra Costa Summit Mt. Diablo Comment
  RSA59614  Lewisia rediviva Verne Grant, Alva Grant 1950-5-13 8895 Contra Costa Saddle between N & Meridian peaks, Mt. Diablo. Comment
  CDA39047  Leymus X multiflorus D. G. Kelch 2011-6-5 11 .576 Contra Costa Carquinez Strait; South of Crockett, south of Cummings Skyway. Comment
  UC1103210  Leymus X multiflorus Joseph P. Tracy 1932-9-10 10787 Contra Costa Franklin Canyon North Coast Ranges (head, on Pinole-Martinez Rd) 152 Comment
  CAS-BOT-BC272211  Leymus triticoides A. A. Beetle 1941-6-24 1751 Contra Costa Pt. Richmond on San Francisco Bay Comment
  UCD87999  Leymus triticoides H. S. Yates 1933-6-18 s.n. Contra Costa Near Danville. 137 Comment
  CAS-BOT-BC272217  Leymus triticoides Walter Knight 1965-9-7 1174 Contra Costa Along San Joaquin River bank, Antioch dunes Comment
  UC2029157  Leymus triticoides Barbara Ertter 2000-7-29 17448 a Contra Costa Lower Donner Canyon just above Donner Cabin site, on north side of Mount Diablo. Comment
  JEPS128148  Ligustrum ovalifolium Eric Wrubel 2010-10-1 NPS 2 Contra Costa Joh Muir National Historic Site, Martinez. Mount Wand trailhead. Comment
  CAS-BOT-BC211109  Lilaeopsis masonii Walter Knight; Irja Knight 1977-6-18 s.n. Contra Costa Antioch Sand Dunes, Little Corral site Comment
  UC1101455  Lilaeopsis masonii Herbert L. Mason April, 1954 Contra Costa n. end Antioch Bridge Comment
  UC1261904  Lilaeopsis masonii A. Q. Howard 1977-8-24 39 Contra Costa along Stamm property w. of Sardis property (Little Corral) Antioch Dunes Comment
  UCD127576  Lilaeopsis masonii Robert E. Preston 1991-10-1 604 Contra Costa Antioch, Big Break Marina, along east side of levee north of the marina. 0 Comment
  CDA33363  Limnobium laevigatum Robin Breckenridge 2010-10-1 PDR# 5059103 Contra Costa Oakley; Bradford Island, Santa Clara Shoal. 0 Comment
  SD180583  Limonium californicum Beecher Crampton 1950-8-5 632 Contra Costa San Pablo Canal, northwest of Richmond. Comment
  UCD33426  Linanthus Beecher Crampton 1968-3-27 8232 Contra Costa SE corner of County, ca. 3.5 miles south of Byron. Comment
  UC23369  Linanthus androsaceus Jos. Burtt Davy 1901-4-21 6930 Contra Costa Wildcat Canyon Comment
  UC908952  Linanthus androsaceus Herbert L. Mason 1928-4-29 4441 Contra Costa Sycamore Canyon Mount Diablo (s slope of Mt. Diablo) Comment
  UC23395  Linanthus bicolor Harley P. Chandler 1901-4-5 946 Contra Costa Pine Canyon; Mt. Diablo Comment
  UC727781  Linanthus bicolor Milo S. Baker 1946-4-20 11332 Contra Costa s of Clayton (summit) Comment
  SEINET12279041  Linanthus bicolor H. M. Hall 1901-1 1723 Contra Costa Region of San Francisco Bay, Mt. Diablo 411 Comment
  UC1047918  Linanthus liniflorus Kay H. Beach 1941-4-30 1083 Contra Costa near Byron Hot Springs Station Comment
  UC615173  Linanthus liniflorus Beryl O. Schreiber 1932-3-27 155 Contra Costa Byron Hot Springs Comment
  SEINET8729347 Image available Linanthus liniflorus Herbert L. Mason 1952-1 14265 Contra Costa 3.5 miles south of Eyron Comment
  JEPS123317  Linanthus parviflorus David Gowen with Chris Thayer 2010-4-30 1090 Contra Costa North of Briones Reservoir. Rocky area on hill above Oursan Trail just west of its junction with Hampton Trail. Comment
  UC1050873  Linaria maroccana N. Floy Bracelin 1941-5-11 1302 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  CHSC59814  Lithophragma affine Willis Ball 1975-3-26 518 Contra Costa On n facing slope of large hill ca. 500 yds s of main parking lot, in area #8, 780 yds w of Contra Loma Blvd., Contra Loma Regional Park. 121 Comment
  PASA2233  Lithophragma affine Annetta Carter 1929-3-31 Contra Costa Near Clayton Comment
  UC11867  Lithophragma affine W. H. Brewer 1862-5-23 1146 Contra Costa SE of Monte Diablo Comment
  UC11876  Lithophragma affine Jos. Burtt Davy 1901-4-21 6919 Contra Costa Wildcat Canyon Comment
  UC1618055  Lithophragma affine Donald G. Nelson 1937-3-30 467 Contra Costa along Marsh Creek Road between Claytonville and Byron; Marsh Creek Road Comment
  UC402491  Lithophragma affine J. Burtt Davy 1895-4-7 922 Contra Costa foothills, Antioch Comment
  UC402493  Lithophragma affine Chestnut and Drew 1889-4-16 Contra Costa Martinez Comment
  POM203654  Lithophragma affine subsp. affine John T. Howell 1933-5-14 11280 Contra Costa Hills east of St. Mary s college Comment
  JEPS105700  Lithophragma bolanderi David Gowen 2004-3-28 21 Contra Costa Black Diamond Mines Regional Preserve. River View Loop trail southeast of the Arata Overlook trail junction. Comment
  UC1088544  Lithophragma heterophyllum John H. Weiler 1959-1 5944 Contra Costa along Bear Creek Road Comment
  UCR246792  Lithophragma heterophyllum Dean Kelch 2011-5-4 11 .226 Contra Costa Central Coast, near Morgan Territory Regional Park, west of Morgan Territory Road 610 Comment
  UC1051271  Lobelia tupa N. Floy Bracelin 1941-6-29 1262 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC691820  Logfia filaginoides Mary L. Bowerman 1931-5-16 854 Contra Costa s side Meridian Peak summit; Mount Diablo, Meridian Peak summit Comment
  CHSC21628  Lolium multiflorum Willis Ball 1975-4-19 524 Contra Costa Contra Loma Regional Park. In area #1. Immediately to the s side of the main parking lot at the s end of the lake. 33 Comment
  CAS-BOT-BC269060  Lolium perenne J. W. Congdon 1889-6-19 s.n. Contra Costa Byron Springs Comment
  CDA9485  Lolium perenne D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .21 Contra Costa Byron Airport. Comment
  CHSC75233  Lolium perenne Roger Thom 1987-5-13 7 Contra Costa Contra Costa Campus of Hayward Calif. State University. 3100 Oak Park Blvd. Pleasant Hill. Field. 30 Comment
  POM300593  Lolium temulentum Mary L. Bowerman 1933-5-17 2096 Contra Costa Branch of Curry Canyon due south of Olafsons' barn. Comment
  UC196245  Lomatium caruifolium var. caruifolium Edw. L. Greene 1889-3-23 Contra Costa near Byron Comment
  UC2012992  Lomatium dasycarpum subsp. dasycarpum Barbara Ertter with Susan D'Alcamo 1994-4-24 12461 Contra Costa Mount Diablo east Walnut Creek, Bald Ridge Trail above Murchio Gap. Comment
  UC2027916  Lomatium dasycarpum subsp. dasycarpum Barbara Ertter with Dan Norris 2001-4-8 17580 Contra Costa Lime Ridge Open Space east of Walnut Creek, high part of main ridge. Comment
  UC106225  Lomatium macrocarpum Katharine Curran May 1885 Contra Costa Antioch Comment
  UC691428  Lomatium macrocarpum Mary L. Bowerman 1933-4-26 1906 Contra Costa ridge e.-s.e of the peak North Peak; Mt. Diablo 579 Comment
  UC691429  Lomatium macrocarpum Mary L. Bowerman 1933-4-26 1906 Contra Costa e.-s.e. of the peak North Peak ridge (Mt. Diablo); Mt. Diablo 579 Comment
  UC691771  Lomatium macrocarpum Mary L. Bowerman 1935-5-1 2945 Contra Costa w. rd. 4.4 mi. from entrance Mt. Diablo 381 Comment
  UC691773  Lomatium macrocarpum Mary L. Bowerman 1930-6-28 406 Contra Costa summit Mt. Diablo Comment
  UC2027801  Lomatium macrocarpum Barbara Ertter with Holly Forbes 1997-4-20 15558 Contra Costa North side of Mount Diablo, north end of Eagle Peak Ridge on Mitchell Rock Trail between Mitchell Rock and Twin Peaks. Comment
  RSA455187  Lonicera hispidula var. vacillans Thekla Mohr 1917-07 s.n. Contra Costa Mount Diablo Comment
  CAS-BOT-BC240661  Lonicera interrupta H. E. McMinn 1922-10-1 91 b Contra Costa Mitchelle Canon [Canyon], Mt. Diablo Comment
  UCSB24470  Lonicera interrupta McMinn, Howard 1922-6-2 Contra Costa NE slope of Mt. Diablo Comment
  UC1051220  Lonicera pileata f. yunnanensis N. Floy Bracelin 1942-9-27 1183 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS12853  Lonicera subspicata var. denudata W. L. Jepson 1918-6-5 7613 Contra Costa Mt. Diablo, N. Peak, Donner Canyon Comment
  UC1005847  Lonicera tatarica N. Floy Bracelin 1945-4-1 2840 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California 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
  CDA15230  Lotus corniculatus G. F. Hrusa, D. Crowe 1998-5-8 14359 Contra Costa Sacramento Delta; Adjacent to Dow Chemical plant at Pittsburg. Comment
  UC1795754  Lotus corniculatus Barbara Ertter, Kristin Ertter 1995-7-11 14473 Contra Costa Sulfur Spring on Pine Cr, Diablo Foothills Regional Park SW of Walnut Creek, marshy wet ground. 121 Comment
  SD241813  Lotus corniculatus Barbara Ertter, Kristin Ertter 1995-7-11 14473 Contra Costa Sulfur Spring on Pine Cr, Diablo Foothills Regional Park SW of Walnut Creek 121 Comment
  RSA138287  Lotus heermannii Volney Rattan 1879 Contra Costa Antioch Comment
  UC692530  Lotus humistratus Mary L. Bowerman 1933-5-2 1940 Contra Costa below Pioneer Camp; Mount Diablo 762 Comment
  JEPS55792  Lotus purshianus var. purshianus W. L. Jepson 1919-6-8 8333 Contra Costa Mt. Diablo 365 Comment
  JEPS55900  Lotus scoparius A. M. Ottley 1920-6-5 773 Contra Costa Moraga Ridge Comment
  UC33560  Lotus strigosus Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  UC764469  Lotus strigosus R. F. Hoover 1935-3-10 303 Contra Costa Antioch Comment
  JEPS108217  Lotus strigosus David Gowen 2005-4-27 270 Contra Costa Lime Ridge Open Space. In the southern section of the park on the east side of hill 724. Growing in sandy bare area along chaparral. Comment
  JEPS108357  Lotus strigosus David Gowen, Abby Moore, Mike Park 2005-4-10 226 Contra Costa Lime Ridge Open Space. Growing on sandy trail in NE area of park. Comment
  PASA1117  Lotus subpinnatus Annetta Carter 1929-3-31 Contra Costa Near Clayton Comment
  CDA29490  Lotus wrangelianus D. G. Kelch, Troy MacGregor 2009-5-1 9 .272 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  JEPS41057  Lotus wrangelianus Rimo Bacigalupi, and L. R. Heckard 1965-5-11 9082 Contra Costa sw of Richmond; San Francisco Bay, Brooks Island 30 Comment
  JEPS55832  Lotus wrangelianus W. L. Jepson 1922-5-11 9636 Contra Costa North Berkeley Hills Comment
  JEPS55837  Lotus wrangelianus W. L. Jepson May 22 1891-May 23 1891 13796 Contra Costa Mt. Diablo Comment
  UC1555365  Lotus wrangelianus Jerry Powell 1988-4-8 1531 Contra Costa Point Molate, in w Richmond Richmond Comment
  UC1051078  Luculia intermedia N. Floy Bracelin 1944-10-29 2821 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC478119  Ludwigia Walter Knight; Irja Knight 1978-10-8 3321 Contra Costa Jersey Island Road, one mile north of Dutch Slough Comment
  UC2042499  Lupinus albifrons Barbara Kelly 2011-4-18 Contra Costa Tilden Regional Park, along Lomas Cantadas Rd., on a steep, rocky slope above the road. Comment
  UC750647  Lupinus albifrons Lewis S. Rose 1946-4-1 46023 Contra Costa above Wildcat Creek (Berkeley Hills); , above Wildcat Creek 396 Comment
  CAS-BOT-BC201364  Lupinus albifrons var. albifrons Alice Eastwood 1915-5-30 4510 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC201368  Lupinus albifrons var. albifrons Alice Eastwood 1921-4-18 10282 Contra Costa Antioch Comment
  CAS-BOT-BC201375  Lupinus albifrons var. albifrons James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  UC864974  Lupinus albifrons var. albifrons Lewis S. Rose 1935-5-16 35162 Contra Costa Mt. Diablo Comment
  UC1795855  Lupinus albifrons var. albifrons Barbara Ertter, Brad Olson, Diane Lake 1996-4-14 14594 a Contra Costa Sycamore Spring Trail off Prospectors Gap Rd., east side Mt. Diablo. 640 Comment
  RSA600828  Lupinus albifrons var. collinus Joseph A. Ewan 1934-3-10 8645 Contra Costa San Pablo Ridge: Wildcat Canyon; 2 miles below Orinda road bridge.. . Comment
  CAS-BOT-BC196217  Lupinus albifrons var. eminens C. F. Baker Apr. 25 2823 Contra Costa Antioch Comment
  UC127056  Lupinus arboreus Ivar Tidestrom 1893-4-15 Contra Costa Sheep Island Comment
  UC1999842  Lupinus arboreus Charles M. Belshaw 1935-5-30 946 Contra Costa Island route about 15 miles north of Antioch Bridge Comment
  JEPS100072  Lupinus bicolor G. Smick 2003-3-25 GAS 71 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS112414  Lupinus bicolor Dean G. Kelch and Andrew G. Murdock 2005-4-15 05 .146 Contra Costa Rodeo Creek; county: Contra Costa; EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump). Comment
  UC1584851  Lupinus bicolor Jerry Powell 1989-4-6 1561 Contra Costa Point Molate Comment
  UC15930  Lupinus bicolor W. H. Brewer 1862-5-23 1149 Contra Costa se Monte Diablo; se of Monte Diablo Comment
  UC15944  Lupinus bicolor Brewer 1862-5-23 1149 Contra Costa Mt. Diablo Comment
  UC764122  Lupinus bicolor R. F. Hoover 1938-5-4 3343 Contra Costa peak e Tassajero Creek; peak e of Tassajero Creek Comment
  UCD32372  Lupinus bicolor Beecher Crampton 1950-4-1 498 c Contra Costa 1 mile north of Richmond, near S.P. Railroad tracks. 15 Comment
  POM252849  Lupinus bicolor subsp. pipersmithii A. A. Heller 1938-4-9 15019 Contra Costa Near the west end of the Antioch bridge. Comment
  POM10667  Lupinus bicolor subsp. tridentatus H. P. Chandler 975 Contra Costa Between Pine Canyon and the Summit. Comment
  RSA32778  Lupinus bicolor subsp. tridentatus A. A. Heller 1938-4-9 15019 Contra Costa Near the west end of the Antioch bridge. Comment
  CAS-BOT-BC187857  Lupinus chamissonis John Thomas Howell 1926-12-27 2272 Contra Costa 1.5 miles S of Oakley Comment
  SEINET10485223  Lupinus densiflorus Frenkel 1964-4-18 FRENKEL 424 Contra Costa 2.1 mi. E of danville on tassajara rd. 130 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
  UCD107762  Lupinus formosus P. B. Kennedy 1916-5-11 12 Contra Costa Grand View Terrace; Richmond District. Comment
  UC2070479  Lupinus formosus Barbara Ertter with David Gowen 2006-6-6 18677 a Contra Costa Upper San Leandro Reservoir Watershed (EBMUD) south of Moraga. Comment
  RSA0026155  Lupinus formosus var. formosus Barbara Ertter, J. Travis Columbus 1990-6-10 9116 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill.; grassy hill SE of Alhambra Valley staging area. 152 Comment
  UC1819006  Lupinus formosus var. formosus Barbara Ertter, Brad Olson, Diane Lake, Seth Adams, et al. 1994-9-11 13095 Contra Costa Chaparral Springs addition to Mt. Diablo State Park, north side of Marsh Creek Road at high point southeast of Clayton,, open slopes between ponds at south foot of ridge, open woodland/ grassland, heavily grazed. Comment
  JEPS112346  Lupinus microcarpus Dean G. Kelch and Andrew G. Murdock 2004-4-25 04 .110 Contra Costa Martinez - West: Ozol Rock and Scenic Drive; County: contra Costa; West Martinez on Carquinez Dr. Comment
  OBI60545  Lupinus microcarpus var. densiflorus Donald G. Nelson 1937-4-24 516 Contra Costa On Marsh Crk Rd, in rolling hill country N of Byron Comment
  JEPS25140  Lupinus microcarpus var. microcarpus G. Thomas Robbins 1959-5-16 4010 Contra Costa just n Pt. Orient, Richmond (western base of Potrero Hills, overlooking San Francisco Bay); overlooking San Francisco Bay, Potrero Hills, n of Pt. Orien Comment
  UC201018  Lupinus microcarpus var. microcarpus Katharine Brandegee 1918-6-16 Contra Costa near Vigorit Powder works (R.R. embankment) Comment
  UC201019  Lupinus microcarpus var. microcarpus Katharine Brandegee and Harriet E. Phillips 1918-6-16 Contra Costa near Vigorit Powder Works; near Vigorit Powder Works Comment
  UC201027  Lupinus microcarpus var. microcarpus Katharine Brandegee June 1918 Contra Costa Richmond Annex Comment
  UC33552  Lupinus microcarpus var. microcarpus Chesnut and Drew 1889-4-17 Contra Costa Clayton 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
  UCD109076  Lupinus nanus P. B. Kennedy Date Unknown 1311 Contra Costa Grand View Terrace - Richmond District. Comment
  UC1129668  Lupinus pachylobus R. C. Wilson 1935-3-19 139 Contra Costa 2 mi nw Wall Pt.; Mt. Diablo Comment
  UC2028075  Lupinus pachylobus Barbara Ertter, Tony Morosco 1998-4-12 16002 Contra Costa Base of Mount Olympia on north side of Mount Diablo, NE of Olympia Trail. Comment
  UC2028168  Lupinus pachylobus Barbara Ertter 1998-5-3 16075 Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, near Wall Point. Comment
  POM194558  Lupinus polycarpus Y. Mexia 1939-4-21 2378 Contra Costa Moraga Valley Comment
  JEPS100046  Luzula macrantha G. Smick 2003-4-8 GAS 130 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site Comment
  UC1051000  Lycium chinense var. inerme N. Floy Bracelin 1943-9-26 2607 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  SD175830  Lycopus americanus D. G. Kelch 2002-7-15 02 4 Contra Costa Old San Joaquin River channel, east of Brentwood. In low areas of the channel. Comment
  UC1607619  Lycopus asper Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, and Amy Hiss 1991-8-18 10691 Contra Costa w. end of Browns Isl. n. of Pittsburg (near confluence of Sacramento & San Joaquin Rivers, opposite Pittsburg Marina); Browns Isl. Comment
  UC692632  Lythrum californicum Mary L. Bowerman 1930-9-27 461 Contra Costa (2 mi by road from North Gate (at trough, take trail to west, follow to fence and go through), Mount Diablo); Mount Diablo Comment
  UC692629  Lythrum hyssopifolia Mary L. Bowerman 1932-8-27 1522 Contra Costa s of Turtle Rock (w of the willows, Mount Diablo); Mount Diablo Comment
  UC692637  Lythrum hyssopifolia Mary L. Bowerman 1930-6-28 391 Contra Costa Mount Diablo, Lower Silver Spring Lower Silver Spring; Mount Diablo, Lower Silver Spring Comment
  UC1619945  Lythrum tribracteatum Barbara Ertter, Brad Olson 1991-9-28 10834 Contra Costa San Pablo Reservoir between Orinda and El Sobrante; dried mud flats at S end of reservoir 91 Comment
  UC2028242  Lythrum tribracteatum Barbara Ertter, Tony Morosco 1998-9-18 16422 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, western quarry area. Comment
  UC691550  Madia elegans Mary L. Bowerman 1933-6-3 2240 Contra Costa Ransom Point ridge Mount Diablo Comment
  UC691549  Madia exigua Mary L. Bowerman 1932-4-27 1400 Contra Costa canyon w Riggs Canyon (s face Oyster Ridge); Mount Diablo 350 Comment
  UC89385  Madia exigua Katharine Brandegee May 1885 Contra Costa Antioch Comment
  CHSC39487  Madia gracilis Tyler Williams 1984-4-18 23 Contra Costa Mt. Diablo. On South Park Rd., ca. 20 yd nw of Bridal Nook Picnic Area, on e side of road in Mount Diablo State Park. 533 Comment
  UC691768  Madia gracilis Mary L. Bowerman 1931-5-21 889 Contra Costa Curry-Cave Point trail 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-BC8141  Madia radiata Albert Kellogg s.n. Contra Costa Antioch Comment
  JEPS6745  Madia radiata R. F. Hoover 1941-4-12 4836 Contra Costa 1 mi n Lone Tree Valley Comment
Read comments
Aug 21 2017
  SD8608  Madia radiata Katherine Curran Unknown Contra Costa Antioch Comment
Read comments
Jan 9 2007
  UC112946  Madia radiata Mrs. K. Brandegee 1908-4-9 50 Contra Costa near Antioch Comment
  UC89535  Madia radiata unknown April 1889 Contra Costa near Antioch Comment
  CAS-BOT-BC343586  Madia sativa L. R. Abrams 1916-7-1 5734 Contra Costa Martinez Comment
  UC33195  Madia sativa Jos. Burtt Davy 1895-1 Contra Costa Moraga Pass Comment
  RSA577468  Maianthemum racemosum subsp. amplexicaule Joseph A. Ewan 1934-6-8 8755 Contra Costa South Fork Marsh Creek, Mt. Diablo 305 Comment
  CAS-BOT-BC206242  Malacothamnus fasciculatus H. M. Hall; F. M. Essig 1916-5-30 10131 Contra Costa Mt. Diablo, on the westerly side north of Pine Canyon 290 Comment
  SD70001  Malacothamnus fremontii Darley F. Howe 1968-5-20 4515 Contra Costa Nortonville. Comment
  UC185544  Malacothamnus fremontii Katharine Brandegee May 1883 Contra Costa Base of Mt. Diablo Comment
  UC692612  Malacothamnus fremontii Mary L. Bowerman 1930-6-18 353 Contra Costa Mount Diablo 822 Comment
  JEPS95241  Malacothamnus hallii Stephen W. Edwards 1988-9-5 Contra Costa Lime Ridge, Walnut Creek Open Space above country club Comment
  POM301021  Malacothamnus hallii Mary L. Bowerman 1933-6-3 2223 Contra Costa 2 miles by road from North Gate Comment
  CAS-BOT-BC204090  Malacothamnus hallii Volney Rattan 1886-6-14 s.n. Contra Costa Mouth of Pine Canon [Canyon]. Foot of Mount Diablo Comment
  CAS-BOT-BC204093  Malacothamnus hallii Mary L. Bowerman 1938-11-12 3732 Contra Costa Mount Diablo. Lime Ridge, on crest of ridge south of 1004 289 Comment
  SEINET10680800 Image available Malacothamnus hallii Harvey M. Hall 1916-5-30 Hall 301 Contra Costa Mt. Diablo. On the westerly side north of Pine Canon, Upper Sonoran Zone. Growing on stony south slope, associated with Artemisia californica, Salvia mellifera, Mimulus glutinosus, and Lofus glaber, and with thickets of Adenostoma fasciculatum near by. 275 Comment
  UC691437  Malacothrix clevelandii Mary L. Bowerman 1933-4-26 1909 Contra Costa Mount Diablo North Peak Ridge ese North Peak; Mount Diablo, North Peak ridge, ese of the peak 609 Comment
  RSA721597  Malacothrix clevelandii Mary L. Bowerman 1978-5-14 s.n. Contra Costa Mount Diablo; old wagon trail to mine on east face of Eagle Peak Comment
  JEPS36614  Malacothrix coulteri R. F. Hoover 1935-3-10 382 Contra Costa Kirker Pass Comment
  CAS-BOT-BC347391  Malacothrix floccifera Alice Eastwood 1921-6-11 10601 Contra Costa Mt. Diablo Comment
  UC92223  Malacothrix floccifera T. S. Brandegee Contra Costa Antioch Comment
  UCD134393  Malacothrix floccifera P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  POM53214  Malacothrix floccifera C. F. Baker 1903-4-28 2948 Contra Costa Marsh Creek, Mt. Diablo. Comment
  JEPS111544  Malva nicaeensis D. G. Kelch 2004-6-19 04 .279 Contra Costa Crockett - West Valona Along railroad tracks west of Carquinez Bridge Crockett (Valona) Contra Costa County CA 20 Comment
  JEPS111547  Malva nicaeensis D. G. Kelch 2005-3-24 05 .65 Contra Costa Chevy's Hill Chevy's Hill. Edge of waste lot. 57 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
  UCD116680  Malva sylvestris Herbert L. Mason 1952-6-10 s.n. Contra Costa Waste land near Dwinelle Hall, University of California, Berkeley. Comment
  RSA0042211  Malvella leprosa D. G. Kelch 2006-7-14 06 .332 Contra Costa Between Rte 4 and Carbon Rd. E Rodeo. 24 Comment
  UC1606434  Malvella leprosa Barbara Ertter, Brad Olson 1993-10-30 12289 Contra Costa n.e. Rodeo (across R.R. tracks from San Pablo Ave., beach next to jetty) Comment
  JEPS100091  Marah fabacea G. Smick 2003-2-25 GAS 57 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CHSC28455  Marah oregana Robert A. Schlising 1964-6-6 2718 Contra Costa Berkeley-Oakland Hills. Comment
  CHSC46934  Marah oregana Robert A. Schlising; Anna Eagle 1962-5-29 2282 Contra Costa Roadside. Comment
  CAS-BOT-BC348049  Matricaria discoidea Mary L. Bowerman 1931-4-4 653 Contra Costa Mount Diablo. North Road 4.5 miles from North Gate Comment
  CAS-BOT-BC348261  Matricaria occidentalis Alice Eastwood 1927-5-19 14446 Contra Costa Byron Springs Comment
  RSA215988  Matricaria occidentalis R. E. Frenkel 1963-5-15 197 Contra Costa Grazed field east of Bixler Road between Marsh Creek Road and California Highway 4 in Byron Tract Comment
  UC2036958 Image available Meconella californica Mary L. Bowerman 1946-3-10 4084 Contra Costa Northerly face of Shell Ridge. East of Brown's house (where [m.c.?] lived). Comment
  RSA195482  Medicago arabica C. R. Gunn 1963-5-31 2659 Contra Costa Contra Cost County: Tilden Park, Berkeley at intersection of Shasta and Oak Hill Roads Comment
  UC2028593  Medicago arabica Barbara Ertter with Dorothy Frantz 2001-5-10 17642 Contra Costa Pine Canyon on west side of Mount Diablo, junction of Stage Road and Sunset Trail Comment
  JEPS100116  Medicago polymorpha G. Smick 2003-4-1 GAS 107 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS75469  Medicago polymorpha P. F. Yorks 1975-5-15 395 -1 Contra Costa on Hampton Rd ca 1.5 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Preserve Comment
  UC692278  Medicago polymorpha Mary L. Bowerman 1931-4-4 640 Contra Costa 2 mi by road from west entrance (= North Gate); Mount Diablo Comment
  UC692279  Medicago polymorpha Mary L. Bowerman 1931-4-11 703 Contra Costa Pine Canyon Mount Diablo (level grassy area toward mouth) Comment
  POM11730  Medicago polymorpha Katherine Brandegee s.n. Contra Costa Byron Hot Springs. Comment
  JEPS127043  Medicago polymorpha var. brevispina Lowell Ahart, Josephine Guardino 2016-4-19 20763 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
  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
  RSA762310  Melica californica William J. Ferlatte, L. M. Moe 1970-4-27 1260 Contra Costa San Francisco Bay, Red Rock Island. 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-BC271221  Melica californica Mary L. Bowerman 1935-5-25 3070 Contra Costa South of the summit, east of the hairpin turn on road, Mount Diablo 1066 Comment
  CDA32524  Melica torreyana D. G. Kelch, Andrew Murdock 2003-3-21 3 .055 Contra Costa Carquinez Strait Region; Martinez; West: Ozol Rock and Scenic Drive. Comment
  JEPS99593  Melica torreyana Mary Bowerman 1994-4-17 Contra Costa Mount Diablo, Donner Canyon by fire road near junction 1st trail to Back Canyon. Comment
  UC188902  Melica torreyana Harley P. Chandler 1901-4-5 966 Contra Costa between Pine Canyon and Mt. Diablo Summit; Mt. Diablo Region Comment
  UC53661  Melica torreyana J. Burtt Davy Apr 1897 Contra Costa Point Isabel Comment
  UC691167  Melica torreyana Mary L. Bowerman 1935-5-8 2972 Contra Costa Muir Area 1036 Comment
  JEPS128777  Melilotus albus Kevin Hintsa 1999-8-17 Contra Costa Mount Diablo State Park, Pine Canyon in flats adjacent to willow forest. 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
  UC651294  Melilotus indicus Ira L. Wiggins 1930-4-18 4599 Contra Costa Jersey Island Comment
  UC692281  Melilotus indicus Mary L. Bowerman 1932-5-6 1418 Contra Costa Mitchell Canyon floor Mount Diablo (roadside) 213 Comment
  JEPS112482  Mentha X piperita D. G. Kelch 2004-5-7 04 .193 Contra Costa Ca ada del Cierbo 40 Comment
  UC2027800  Mentha aquatica Barbara Ertter 1996-9-19 15292 Contra Costa Antioch Marina, edge of marsh near parking lot. Comment
  JEPS99554  Mentzelia dispersa Mary Bowerman 1978-6-3 Contra Costa Mount Diablo, between lower summit parking lot and road. Comment
  UC1481551  Mentzelia lindleyi Neil Havlik 1980-5-10 912 Contra Costa 3 mi E Crockett (Carquinez Scenic Drive) Comment
  CDA33748  Mercurialis ambigua D. G. Kelch 2011-2-5 11 .018 Contra Costa Crockett below Zampa Bridge. 0 Comment
  UC593505  Micropus amphibolus G. L. Stebbins Jr. 1936-5-9 1547 Contra Costa e side Wildcat Canyon; Berkeley Hills Comment
  CAS-BOT-BC348365  Micropus californicus var. californicus Alice Eastwood 1915-5-30 4470 Contra Costa Mt. Diablo Comment
  UC35594  Micropus californicus var. californicus Brewer 1862-4-30 1015 Contra Costa Walnut Creek, camp 69 Comment
  CAS-BOT-BC348648  Micropus californicus var. subvestitus Brandegee No date on label s.n. Contra Costa Antioch Comment
  CAS-BOT-BC348886  Microseris douglasii subsp. douglasii Mary L. Bowerman 1933-5-8 2012 Contra Costa Mount Diablo. Fossil Ridge near crest, on north side by side road Comment
  JEPS25387  Microseris douglasii subsp. douglasii Rimo Bacigalupi with G. T. Robbins and Francia Chisaki 1959-4-14 7000 Contra Costa along Lone Tree Way 2 1/2 mi se Antioch (just e of Antioch Airport) 56 Comment
  UC1819049  Microseris douglasii subsp. douglasii Barbara Ertter, Lisa Schultheis 1995-4-27 14012 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
  CAS-BOT-BC349170  Microseris elegans Brandegee No date on label s.n. Contra Costa Byron Hot Springs Comment
  JEPS116945  Microseris sylvatica David Gowen 2008-4-16 861 Contra Costa West end of Horse Valley. 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
  UC691569  Mimulus douglasii Mary L. Bowerman 1934-3-18 2483 Contra Costa w Russelman Park (on edge of Donner Canyon); Mount Diablo 365 Comment
  UC691504  Mimulus grandis Mary L. Bowerman 1933-5-2 1964 Contra Costa below and w Pioneer Camp; Mount Diablo Comment
  UC1050851  Mimulus guttatus N. Floy Bracelin 1941-5-25 1321 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  RSA0069380  Mimulus guttatus Katie Gallagher, Nick Jensen 2014-4-26 209 Contra Costa Las Trampas Regional Wilderness. 487 Comment
  SEINET4095730  Mimulus guttatus M. W. Garcia 1960-1 60049 Contra Costa Back of Tilden Park. 53 Comment
  SEINET3159684  Mimulus latidens L. S. Rose 1940-4-11 40184 Contra Costa 3 miles W of Byron. 30 Comment
  UC691909  Mimulus nasutus Mary L. Bowerman 1933-5-9 2056 Contra Costa e Pine Saddle; Mount Diablo, Curry Creek tributary Comment
  UC725862  Mimulus nasutus A. A. Heller 1942-4-12 Contra Costa 2 mi n Blue Tent Creek Comment
  UC1607684  Minuartia pusilla Barbara Ertter, Lynne Hosley 1993-4-17 11512 Contra Costa ca 10 air mi n Livermore (hills in lee of Mt. Diablo, edge of outcrop s of Hummingbird trail); Morgan Territory 609 Comment
  UC54731  Minuartia pusilla J. P. Tracy 1903-4-18 1798 Contra Costa slope beyond Bald Peak; Region about San Francisco Bay, Berkeley Hills 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
  RSA0026044  Mirabilis jalapa D. E. Breedlove 1969-10-18 16711 Contra Costa Along the roadbank on Reliez Valley Road at the junction with Gloria Terrace; Lafayette. Comment
  UCD102392  Moehringia macrophylla Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Bald Ridge Trail. Bald Ridge. 890 Comment
  JEPS108214  Moehringia macrophylla David Gowen 2005-4-25 266 Contra Costa Mt. Diablo State Park. North Peak Trail, ca 1/4 mile south of Prospectors Gap. Comment
  CAS-BOT-BC221677  Monardella douglasii A. D. E. Elmer 1903-7-1 4544 Contra Costa Mount Diablo Comment
  UC691412  Monardella douglasii Mary L. Bowerman 1930-6-22 369 Contra Costa Mitchell Canyon Trail, above main canyon Mount Diablo Comment
  CAS-BOT-BC327806  Monolopia gracilens Alice Eastwood 1915-5-30 4518 Contra Costa Mt. Diablo Comment
  UC691683  Monolopia gracilens Mary L. Bowerman 1933-5-2 1946 Contra Costa below Pioneer Camp; Mount Diablo 762 Comment
  POM301019  Monolopia gracilens Mary L. Bowerman 1933-5-9 2057 Contra Costa Mount Diablo: Muir Area, southeast slope east of the rocks Comment
  CAS-BOT-BC349609  Monolopia major Ethel Crum 1939-3-19 2083 Contra Costa Two miles west of Byron 45 Comment
  UC629740  Monolopia major Ethel Crum 1939-3-19 2083 Contra Costa 2 mi w Byron 45 Comment
  CAS-BOT-BC349616  Monolopia major W. W. Carruth 1902-4-1 s.n. Contra Costa Redwood Canon [Canyon], E. Oakland Comment
  RSA666388  Montia fontana Barbara Ertter 1993-4-17 11511 Contra Costa Morgan Territory 10 air miles N of Livermore, in lee of Mt. Diablo. Shallow side at edge of sandstone outcrop S of Hummingbird trail. 610 Comment
  SEINET5624176 Image available Myosotis sylvatica Betsey Northman 1961-1 36 Contra Costa Berkeley Hills, U.C. property; Dirt road leading N. toward Strawberry Canyon area 91 Comment
  CAS-BOT-BC83284  Myosurus minimus M. K. Curran 1884-1-1 s.n. Contra Costa Near Antioch. Comment
  CAS-BOT-BC83285  Myosurus minimus M. K. Curran 1884-1-1 s.n. Contra Costa Near Antioch. Comment
  CAS-BOT-BC83294  Myosurus minimus Peter H. Raven; D. Stone; H. L. Mason; R. Ornduff; et al. 1957-4-4 10582 Contra Costa 3.0 miles south of Byron. Comment
  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
  UC1738083  Myosurus minimus D. E. Stone 1957-2-28 14268 A12 Contra Costa 3 mi S of Byron ( on road to Herdlyn) Comment
  UC634958  Myosurus minimus H. L. Mason 1931-4-5 5824 Contra Costa Road between Marsh Creek and Livermore Comment
  UC1738117  Myosurus sessilis D. E. Stone 1955-8-26 8 -2 Contra Costa 3 mi S of Byron ( on road to Herdlyn) Comment
  POM312426  Myosurus sessilis H. L. Mason 1952-4-14 14263 Contra Costa 3.5 miles S of Byron. Comment
  POM312427  Myosurus sessilis H. L. Mason 1952-4-26 14269 Contra Costa Vernal Pool, 3.5 miles S of Byron Comment
  CDA19119  Myriophyllum spicatum R. M. Case 2001-5-8 PDR P 088776 Contra Costa Sierra Nevada; Mallard Reservoir on Arnold Industrial Way, Concord. 0 Comment
  CDA28809  Nassella cernua D. G. Kelch, Jessica Kolman 2009-5-3 9 .315 Contra Costa Carquinez Strait; Crockett; on hill south of 5th St. with transmission tower on sandstone outcrop. Comment
  CAS-BOT-BC259903  Nassella lepida Mary L. Bowerman 1935-5-1 2936 Contra Costa Mount Diablo. North Road 2 miles from North Gate Comment
  CAS-BOT-BC260127  Nassella pulchra A. A. Beetle 1941-3-28 1718 Contra Costa Orinda Comment
  SEINET190914  Nassella pulchra A. A. Beetle 1941-3-28 1718 Contra Costa Orinda. Comment
  UCD37583  Nassella pulchra Beecher Crampton 1955-4-11 2472 Contra Costa Contra Costa County, city of Richmond, East Shore and San Pablo Avenues. Comment
  UCD87635  Nassella pulchra P. B. Kennedy 1914-3-15 4610 Contra Costa Sunset Cemetery. Comment
  UC30207  Navarretia cotulifolia W. H. Brewer 1862-5-19 1110 Contra Costa n of Kirker's Pass Comment
  JEPS105726  Navarretia gowenii David Gowen 2004-5-11 59 Contra Costa Lime Ridge Open Space. Summit area just south of the antenna facility. Comment
  SEINET10811232 Image available Navarretia gowenii D. Gowen 2005-5-25 Gowen 390 Contra Costa Lime Ridge Open Space on N. side. Just SE of one of the quarries. Clay soil. 183 Comment
  UC126029  Navarretia nigelliformis M. K. Curran 1888-5 Contra Costa Antioch Comment
  JEPS116940  Navarretia nigelliformis subsp. radians David Gowen 2008-4-21 867 Contra Costa South of Antioch, in Contra Loma Regional Park off Frederickson Lane. North, to northwest facing slope just NW of parking area for Black Diamond Mines Regional Preserve. Comment
  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
  JEPS112009  Navarretia squarrosa Christopher Thayer 1995-6-5 Contra Costa West of Pinole Peak 274 Comment
  JEPS75501  Navarretia squarrosa P. F. Yorks 1975-6-29 462 Contra Costa ca 2 km s Bear Creek Road (on Hampton Road, n of Briones Reservoir); Hampton Road Natural Reserve 200 Comment
  JEPS87936  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
  SEINET9296212  Navarretia squarrosa Unknown 1950-9-22 621 Contra Costa Contra Costa County Comment
  UCD36029  Navarretia squarrosa Beecher Crampton 1949-7-10 476 Contra Costa Contra Cost County, along road in pass through Sobrante Ridge, road from valley of San Pablo to Martinez and Pinole, above Sheldon School. 106 Comment
  JEPS111834  Nemophila heterophylla A. G. Murdock 2004-4-30 258 Contra Costa Vaca Canyon 165 Comment
  JEPS3141  Nemophila heterophylla Mary L. Bowerman 1930-6-10 308 Contra Costa Meridian Peak Summit , Meridian Peak summit (Mount Diablo) Comment
  JEPS75500  Nemophila heterophylla P. F. Yorks 1974-4-6 128 Contra Costa on Hampton Road in Hampton Road Natural Reserve ca 1.4 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Reserve, n of Briones Reservoir 180 Comment
  UC1377695  Nemophila heterophylla W. J. Dress 1951-2-24 3021 Contra Costa ca 1 mi nw of n gate Mt. Diablo State Park; nw of north gate Mt. Diablo State Park Comment
  UC691705  Nemophila heterophylla Mary L. Bowerman 1933-4-9 1838 Contra Costa w fork , Donner Canyon, w fork (Donner Canyon; Mount Diablo) 243 Comment
  UC727741  Nemophila heterophylla Milo S. Baker 1946-4-20 11328 Contra Costa summit s Clayton; Summit s of Clayton Comment
  POM289447  Nemophila heterophylla Lyman Benson 1931-3-18 2661 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 Comment
  POM65297  Nemophila heterophylla C. F. Baker 1903-4-28 2812 Contra Costa Mitchell s Canyon, Mt. Diablo. Comment
  UC1069193  Nemophila menziesii R. C. Wilson 1935-3-13 124 Contra Costa 1 1/2 mi se Wall Pt.; Mt. Diablo Quad., se of Wall Pt. Comment
  UC67147  Nemophila menziesii Harley P. Chandler 1900-3-23 595 Contra Costa Briones Hills San Francisco Bay Region, Briones Hills Comment
  UC691704  Nemophila menziesii Mary L. Bowerman 1931-3-8 557 Contra Costa Mitchell Canyon , Mitchell Canyon (Mount Diablo) 304 Comment
  CDA5536  Nerium oleander T. C. Fuller 1971-9-15 19928 Contra Costa Carquinez Strait; Old Highway 4, Alhambra Valley, ca. 4 miles west of Martinez. 0 Comment
  UCD164893  Nicotiana glauca Henry House 1995-4-30 1995- 2 Contra Costa About 1.25 km west of Walnut Blvd., ca. 0.5 km south of Marsh Creek Rd. 60 Comment
  CDA5796  Nicotiana tabacum R. DeBoer 1966-12-2 Contra Costa Golden Gate Fish Co., Point San Pablo, Richmond. 0 Comment
  CAS-BOT-BC140359  Oemleria cerasiformis Barrett Anderson 1987-4-30 3506 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD 125 Comment
  CAS-BOT-BC140360  Oemleria cerasiformis Alice Eastwood 1915-5-30 4459 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC140363  Oemleria cerasiformis Frank W. Gould 1940-3-2 873 Contra Costa North side of Grizzly Peak 289 Comment
  CAS-BOT-BC235130  Oemleria cerasiformis James R. Shevock 2012-8-12 40657 Contra Costa San Francisco Bay Region. Tilden Regional Park, East Bay Regional Park District. Along Grizzly Peak Trail about midway between the upper and lower trailheads 448 Comment
  JEPS112083  Oemleria cerasiformis D. G. Kelch 2004-3-12 04 .21 Contra Costa Pinole Valley Hillside and canyon above Wright Road. Off of Pinole Valley Road 130 Comment
  UC1005624  Oemleria cerasiformis Frank W. Gould 1940-3-2 873 Contra Costa n side Grizzly Peak 289 Comment
  SEINET6824845  Oemleria cerasiformis E. R. Drew 1888-2-22 s.n. Contra Costa Moraga Valley Comment
  CDA38497  Oenanthe sarmentosa D. G. Kelch 2003-8-13 3 .1 Contra Costa Carquinez Strait Region; Martinez Marsh. 0 Comment
  UC1606350  Oenanthe sarmentosa Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10680 Contra Costa n. Pittsburg (near confluence of Sacramento & San Joaquin Rivers, opposite Pittsburg Marina, Browns Island, marsh at edge of lagoon in center of w. end of island); Browns Island Comment
  JEPS96237  Oenothera curtiflora Barbara Ertter 1991-9-22 10827 Contra Costa sw El Cerrito (Point Isabel Regional Shoreline); Point Isabel Regional Shoreline Comment
  UC2029152  Oenothera deltoides subsp. cognata Barbara Ertter, Chris Thayer 1994-5-19 12782 Contra Costa Highway 4 between Brentwood and Oakley at Honey Lane (halfway between Cypress Rd. and Delta Rd.) Comment
  CDA38166  Oenothera deltoides subsp. cognata Harry Spanglet 2008-7-1 s.n. Contra Costa West side of Emerson Ranch (Emerson Tract?), nr. Oakley, part of DWR s Dutch Slough Restoration Project. 0 Comment
  JEPS12789  Oenothera deltoides subsp. howellii Rimo Bacigalupi with G. T. Robbins 1955-5-4 4979 Contra Costa river front just e Antioch; San Joaquin River 9 Comment
  RSA119427  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
  UC1073376  Oenothera deltoides subsp. howellii George B. Rossbach 1955-5-22 369 Contra Costa dunes near bank of San Joaquin River (e edge of Antioch); Antioch Comment
  UC1241161  Oenothera deltoides subsp. howellii Wm. Klein 1958-6-9 442 Contra Costa sandhills just n Antioch (along the channel) Comment
  UC35412  Oenothera deltoides subsp. howellii Chesnut and Drew 1889-4-18 Contra Costa Sand Hills Antioch Comment
  UC763071  Oenothera deltoides subsp. howellii R. F. Hoover 1937-5-14 2112 Contra Costa Antioch sand-dunes Comment
  RSA0056393  Oenothera hirtella Jim Shevock 1971-4-7 915 Contra Costa Mount Diablo State Park. 548 Comment
  SDSU8854  Oenothera ovata J. Godsil 1952-4-8 158 Contra Costa El Sobrante, hills toward Pinole. Comment
  UC2027743  Olea europaea Barbara Ertter 1997-1-5 15437 Contra Costa Lime Ridge Open Space on northwest side of Mount Diablo, section on north side of Ygnacio Valley Road. Comment
  UC691505  Orobanche fasciculata Mary L. Bowerman 1935-5-16 2995 Contra Costa Mount Diablo. Russelman Park, just south of the north boundary of section 25 (east of gate). Comment
  UC2045289 Image available Orobanche fasciculata Mary L. Bowerman 1930-6-28 408 Contra Costa Meridian Peak near summit (?) Comment
  UC1076297  Orobanche vallicola Herbert L. Mason 1929-9-21 5432 Contra Costa 3 mi above Clayton (Marsh Creek Road); Marsh Creek Road Comment
  CAS-BOT-BC502955  Orobanche vallicola John Thomas Howell 1929-9-21 4391 Contra Costa Marsh Creek Road, 7 miles SE of Clayton Comment
  POM181461  Orthocarpus erianthus I. L. Wiggins 1930-4-17 4571 Contra Costa 1/4 mi. S. of Byron. Comment
  POM181478  Orthocarpus purpurascens I. L. Wiggins 1930-4-17 4555 Contra Costa 1 mi E of Mountain House on road to Byron. Comment
  CDA28455  Oxalis carnosa G. D. Barbe 1976-3-25 2117 Contra Costa International Succulent Institute, 10 Corte Sombrita, between Moraga and Orinda. 0 Comment
  SEINET3840906  Oxalis carnosa Unknown 1976-3-25 2117 Contra Costa International Succulent Institute, 10 Corte Sombrita, between Maraga and Orinda Comment
  UC691357  Packera breweri Mary L. Bowerman 1932-5-6 1427 Contra Costa Mitchell Canyon Mount Diablo 251 Comment
  SEINET9287601  Packera multilobata Unknown 1999-12-20 1219291 Contra Costa Along Wildcat Canyon Rd., 1.9 mi NW of intersection of Wildcat Canyon Rd and Dam Rd. vicinity of Orinda. Comment
  UC2012986  Panicum capillare Barbara Ertter with Lisa Schultheis 1996-9-2 15283 Contra Costa South side of Mount Diablo, South Gate Road not far inside park entrance near base of mountain. Comment
  RSA721592  Papaver californicum Mary L. Bowerman 1978-5-14 s.n. Contra Costa Mount Diablo. E side of Eagle Peak, old mine wagon trail up Black Canyon. Comment
  JEPS101188  Parapholis incurva Dean W. Taylor 1990-4-10 10618 Contra Costa Byron Hot Springs Road, 1 mile S of Holey Road 24 Comment
  UC1795772  Parapholis incurva Barbara Ertter, Brad Olson 1994-5-7 12764 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  UC1818967  Paspalum dilatatum Barbara Ertter 1995-9-30 14523 Contra Costa North bank of Cerrito Creek at end of Yosemite Avenue in El Cerrito, foot of Albany Hill; stonework bank at edge of overgrown sluggish creek. Comment
  CAS-BOT-BC259647  Paspalum dilatatum John Thomas Howell 1954-9-5 30025 Contra Costa Marsh Creek Springs Park Comment
  SEINET12728273  Pectocarya linearis T. S. Brandegee 1890-1 s.n. Contra Costa Antioch California. Comment
  JEPS68227  Pectocarya pusilla Mary L. Bowerman 1933-5-8 2019 Contra Costa near crest (n side, by rd to camp ground); Rock City Ridge Comment
  UCD102373  Pedicularis densiflora Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Burma Road at Mount Diablo. 520 Comment
  UC692690  Pediomelum californicum Mary L. Bowerman 1935-6-1 3114 Contra Costa summit Mount Diablo Mount Diablo, summit (between the one-way roads) Comment
  RSA686788  Pellaea andromedifolia Mark Morris 1929-03 14912 Contra Costa Mt. Diablo. Comment
  CAS-BOT-BC67559  Pellaea mucronata Mary L. Bowerman 1933-3-25 1774 Contra Costa Mount Diablo - ridge north of Emmons Canyon. 335 Comment
  UC692120  Pellaea mucronata var. mucronata Mary L. Bowerman 1933-3-25 1774 Contra Costa ridge n of Emmons Canyon; Mt Diablo 335 Comment
  JEPS15174  Penstemon centranthifolius C. M. Belshaw 1936-5-9 2081 Contra Costa near Plot 14 (Nortonville); Mt. Diablo Quad., Nortonville Comment
  NY583852  Penstemon centranthifolius A. Kellogg 1869-4-8 680 Contra Costa Antioch 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
  UCD124087  Penstemon centranthifolius M. Wiesendanger 1925-5-1 1481 Contra Costa San Miguel. Comment
  JEPS127735  Penstemon heterophyllus B. Keller, Valov, Debra 2009-8-17 UCBG 37 Contra Costa Mt. Diablo State Park. along Summit Rd, 14.96 km SE of the north gate entrance in the city of Walnut Creek and about 0.8 km E of Juniper Camp. Comment
  RSA407924  Penstemon heterophyllus subsp. purdyi Cora Mae Life 1923-7-4 92 Contra Costa Mt Diablo. 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
  CAS-BOT-BC330484  Pentachaeta alsinoides Brandegee no date on label s.n. Contra Costa Mt. Diablo Comment
  UC672242  Pentachaeta alsinoides Herbert L. Mason 1932-4-15 6925 Contra Costa summit road from Moraga to Lafayette Comment
  RSA93286  Pentachaeta exilis Alice Eastwood, J. T. Howell 1936-4-19 2137 Contra Costa Nortonville. Comment
  JEPS106992  Pentagramma triangularis subsp. triangularis J. Greenhouse with Kevin Hintsa 2004-4-5 5082 Contra Costa Mt. Diablo, Fire Interpretive Trail 1124 Comment
  UC1948934  Pentagramma triangularis subsp. triangularis William J. Ferlatte, L. Maynard Moe 1970-4-27 1240 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC692261  Perideridia californica Mary L. Bowerman 1933-6-20 2329 Contra Costa edge of stream <a> little above Bilharan Lodge; Mount Diablo, Donner Canyon Comment
  UC692564  Perideridia californica Mary L. Bowerman 1935-6-15 3134 Contra Costa Mitchell Canyon Mount Diablo (in stones of streambed at point where stream disappears) 640 Comment
  JEPS111618  Perideridia kelloggii D. G. Kelch 2004-7-9 04 .296 Contra Costa Crockett - Carquinez Scenic Drive Carq. Scenic Dr. East of Crockett West of Bull Valley SA 60 Comment
  UCD127961  Perideridia parishii subsp. latifolia M. Wiesendanger 1925-5-1 1483 Contra Costa San Miguel. Comment
  CAS-BOT-BC413498  Persicaria amphibia Walter Knight; Joanne Dean 1978-8-14 3176 Contra Costa Browns Island Comment
  JEPS1458  Phacelia breweri Mary L. Bowerman 1935-4-26 2898 Contra Costa w Indian Ceremonial Spring; Mount Diablo 1021 Comment
  JEPS1459  Phacelia breweri W. L. Jepson 1922-5-23 9656 Contra Costa near summit; Mount Diablo Comment
  UC1069282  Phacelia breweri C. M. Belshaw 1936-5-8 2063 Contra Costa Plot 5 Mount Diablo Quadrangle, Mt. Diablo (se slope of mt.) Comment
  UC162556  Phacelia breweri H. M. Hall 1901-4-5 1748 Contra Costa Mt. Diablo Region of San Francisco Bay 853 Comment
  RSA42303  Phacelia californica Lincoln Constance 1940-3-16 2524 Contra Costa Margin of San Francisco Bay, Point Richmond. 15 Comment
  RSA755524  Phacelia ciliata Barbara Ertter 1992-3-8 10910 Contra Costa NE edge of Black Diamond Mines Regional Preserve, NE-heading canyon with steep loose sides ca. 1/2 mile west of junction of Stewartville Trail and Frederickson Lane. 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
  UC75117  Phacelia ciliata var. ciliata C. F. Baker 1903-4-26 2904 Contra Costa Byron Comment
  JEPS2366  Phacelia distans Virginia Bailey 1939-5-3 Contra Costa near summit Mt. Diablo Comment
  UC24341  Phacelia distans J. Burtt Davy 1895-4-7 917 Contra Costa Antioch Comment
  POM65421  Phacelia distans C. F. Baker 1903-4-28 2806 Contra Costa Antioch Comment
  RSA74783  Phacelia distans F. W. Peirson 1923-7-1 5302 Contra Costa Near summit of Mt. Diablo. Comment
  RSA0027642  Phacelia divaricata Barbara Ertter, Tony Morosco 1998-4-12 16020 Contra Costa Mount Olympia on north side of Mount Diablo, Olympia Road down ridge west of summit. 854 Comment
  JEPS111837  Phacelia imbricata subsp. imbricata A. G. Murdock 2004-5-28 275 Contra Costa Pinole Peak 405 Comment
  JEPS2156  Phacelia imbricata subsp. imbricata Mary L. Bowerman 1935-5-22 3046 Contra Costa canyon at n end of ridge which heads into saddle w Twin Peaks; Mount Diablo, Eagle Point Ridge 350 Comment
  JEPS2169  Phacelia imbricata subsp. imbricata W. L. Jepson 1918-6-5 7611 Contra Costa North Peak Mount Diablo 944 Comment
  CAS-BOT-BC154326  Phacelia phacelioides H. M. Hall; F. M. Essig 1916-5-31 10135 Contra Costa Mount Diablo 1140 Comment
  POM300985  Phacelia phacelioides Mary L. Bowerman 1935-5-8 2974 Contra Costa Muir Area. 1006 Comment
  JEPS99583  Phacelia rattanii Mary Bowerman 1994-6-19 Contra Costa Mount Diablo, Muir aarea, 10'W of restroom Comment
  CDA28836  Phacelia tanacetifolia D. G. Kelch, Jessica Kolman 2009-5-29 9 .308 Contra Costa Carquinez Strait; Pinole Valley Park, near ridgetop. Comment
  JEPS87899  Phacelia tanacetifolia Barbara Ertter 1991-5-5 9774 Contra Costa s of Pittsburg (above Nortonville Pass, Black Diamond Mines Regional Preserve, s side of Rose Hill); Black Diamond Mines Regional Preserve, Rose Hill 365 Comment
  UC2028437  Phalaris aquatica Barbara Ertter with Chris Thayer 1996-10-25 15354 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park Comment
  UC1192354  Phalaris arundinacea Malcolm A. Nobs and S. Galen Smith 1949-7-8 945 Contra Costa 4 mi n Kingston (Otto's Black Bass Resort) Comment
  SACT001701  Phalaris arundinacea Malcolm Nobs, S. Smith 1949-7-8 Contra Costa 4 miles north of Kingston Comment
  CAS-BOT-BC265959  Phalaris minor R. E. Frenkel 1964-4-29 462 Contra Costa 0.2 mile west of Bixler Road on Balfour Road 6 Comment
  CAS-BOT-BC265960  Phalaris minor Mary L. Bowerman 1933-4-15 1849 Contra Costa Canyon south of Arrroyo del Cerro, Mount Diablo Comment
  JEPS99989  Phlox gracilis G. Smick 2003-3-25 GAS 80 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site 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
  POM212436  Phoradendron villosum Joseph A. Ewan 1933-10-15 8040 Contra Costa SW slope of Mt Diablo. 1067 Comment
  CDA9198  Phragmites australis D. G. Kelch, A. G. Murdock 2003-8-13 3 .101 Contra Costa Carquinez Strait; Salt Marsh E of Marina. Martinez. Comment
  JEPS78626  Phragmites australis Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3279 Contra Costa Botany Cove Browns Island; , Botany Cove Comment
  SBBG122964  Phyla nodiflora B. Ertter 1990-9-10 9634 Contra Costa Briones Hills S of Martinez, Maricich Lagoon at jct of Alhambra Crk Trail and Old Briones Rd; Briones Regional Park 335 Comment
  UC2028238  Phyla nodiflora var. nodiflora Barbara Ertter, Tony Morosco 1998-9-18 16429 Contra Costa Lime Ridge Open Space northwest of Mount Diablo. Comment
  SD241704  Phyllostachys aurea Barbara Ertter 2001-5-26 17652 Contra Costa Stamm Unit of Antioch Dunes National Wildlife Refuge east of Antioch. Comment
  POM16711  Pickeringia montana var. montana A. D. E. Elmer 1903-05 4315 Contra Costa Mount Diablo Comment
  UC311108  Pickeringia montana var. montana A. D. E. Elmer May, 1903 4315 Contra Costa Mount Diablo Comment
  UC692283  Pickeringia montana var. montana Mary L. Bowerman 1933-2-4 1690 Contra Costa flat e Mt. Diablo-North Peak divide; Mount Diablo 822 Comment
  POM210012  Pilularia americana Katherine Brandegee 1909-4-24 s.n. Contra Costa Between Antioch and Marsh Creek, Briones Road Comment
  UCD136787  Pilularia americana Roman Gankin 1963-4-12 s.n. Contra Costa On west side of Holey Road, 3 miles southeast of Byron. Comment
  JEPS46806  Pinus coulteri T. H. Goodspeed 1909-11-1 Contra Costa Mt. Diablo Comment
  JEPS46807  Pinus coulteri T. H. Goodspeed 1909-1-1 Contra Costa near Clayton (Mt. Diablo); Mt. Diablo 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
  UC1134077  Pinus coulteri R. C. Wilson 1935-2-26 101 Contra Costa 1 mi sw Nortonville; Mt. Diablo Quadrangle Comment
  UC691930  Pinus coulteri Mary L. Bowerman 1931-3-8 565 Contra Costa above Mitchell Rock; Mount Diablo Comment
  UC2028031  Pinus halepensis Barbara Ertter 1997-9-7 15800 Contra Costa North side Mount Diablo, Falls Trail in Donner Canyon. Comment
  POM300617  Pinus sabiniana Mary L. Bowerman 1933-5-10 2069 Contra Costa One hundred feet below the Muir area. Comment
  UC1134136  Pinus sabiniana R. W. Lundh 1932-9-7 161 Contra Costa 1 mi n Eagle point; Mt. Diablo Quad. 228 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
  CDA15838  Piptatherum miliaceum R. M. Case 1999-10-22 PDR 1206166 Contra Costa San Francisco Bay Area; near Walnut Creek. 0 Comment
  UC2028436  Piptatherum miliaceum Barbara Ertter with Chris Thayer 1996-10-25 15353 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park Comment
  SEINET3292812 Image available Plagiobothrys Lewis S. Rose 1933-3-29 33044 Contra Costa Nortonville, Hills Comment
  UC2027917  Plagiobothrys acanthocarpus Barbara Ertter, Dan Norris 2001-4-15 17615 Contra Costa West side Mount Diablo, east end Stonegate Trail. Comment
  UC54745  Plagiobothrys bracteatus Jos. Burtt Davy 1900-3-24 6533 Contra Costa Stege Comment
  UC573067  Plagiobothrys bracteatus H. L. Mason 1928-4-15 4343 Contra Costa top Moraga Ridge 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
  UC79334  Plagiobothrys canescens Katharine Brandegee May 1888 Contra Costa near Antioch Comment
  RSA14931  Plagiobothrys fulvus var. campestris Alice Eastwood, John Thomas Howell 1935-4-7 2120 Contra Costa Near Byron on Marsh Creek Road. Comment
  CDA1340  Plagiobothrys leptocladus D. G. Kelch 1992-3-21 1824 -A Contra Costa 2.5 mi. SE of Byron; along RR tracks, N of junction of Holey Rd. and Byron Hwy. 0 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
  OBI72067  Plagiobothrys leptocladus Barbara Ertter, Jim Jokerst and Dave Magney 1989-4-5 8129 Contra Costa SE county. W and adj to Clifton Ct Forebay, ca 15 air mi SW of Stockton T1S R3E sec 24 SESW Comment
  JEPS68066  Plagiobothrys nothofulvus W. L. Jepson 1887-4-12 21155 Contra Costa Moraga Moraga Valley Comment
  OBI20600  Plagiobothrys stipitatus var. micranthus Robert F. Hoover 1967-4-28 10513 Contra Costa Byron Hot Springs Comment
  UC79381  Plagiobothrys stipitatus var. micranthus Katharine Brandegee Apr 1889 Contra Costa Byron Comment
  UC1618197  Plagiobothrys stipitatus var. stipitatus Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8120 Contra Costa ca. 15 air mi. s.w. Stockton (w. & adjacent to Clifton Court Forebay); s.e. Contra Costa Co. Comment
  UC24572  Plagiobothrys stipitatus var. stipitatus F. T. Bioletti 1892-1 Contra Costa Byron Comment
  UC79336  Plagiobothrys tenellus Katharine Brandegee April 1890 Contra Costa Antioch Comment
  UC78181  Plagiobothrys trachycarpus K. Brandegee May 1892 Contra Costa Antioch Comment
  UC924232  Plagiobothrys trachycarpus H. S. Reed 1940-4-30 353 Contra Costa Marsh Creek Road Mount Diablo (Mount Diablo) 365 Comment
  JEPS127674  Plantago elongata Barbara Ertter with David Gowen and Michael Park 2017-5-2 22807 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  UC124287  Plantago elongata M. K. Curran May 1883 Contra Costa Antioch Comment
  JEPS6441  Plantago erecta W. L. Jepson 1922-5-11 9637 Contra Costa North Berkeley Hills Comment
  UC2042062  Plantago erecta Katie Gallagher with Nick Jensen 2014-4-26 189 Contra Costa Las Tramps Regional Wilderness. Comment
  UC75129  Plantago erecta unknown 1903-4-25 2803 Contra Costa Antioch Comment
  POM300989  Plantago erecta Mary L. Bowerman 1933-4-15 1848 Contra Costa Canyon S of Arroyo del Cerro Comment
  JEPS111998  Plantago lanceolata A. G. Murdock 2004-5-28 271 Contra Costa Pinole Peak 205 Comment
  CHSC21614  Plantago major Willis Ball 1975-2-23 434 Contra Costa Contra Loma Regional Park. Small population in area #1 spread out in picnic area ca. 100 yds s of lake. 10 yds n of w end of parking lot. 45 Comment
  UC101599  Platystemon californicus Katharine Brandegee 1907-5-5 a Contra Costa between Antioch and Marsh Creek; between Antioch and Marsh Creek Comment
  UC1300992  Platystemon californicus Helen K. Sharsmith 1963-3-24 5253 Contra Costa hills e Orinda (San Francisco Bay Region); , e of Orinda 213 Comment
  POM300583  Platystemon californicus var. californicus Mary L. Bowerman 1933-4-15 1868 Contra Costa Canyon south of Arroyo del Cerro; Rocky knoll 250 feet below spring. Comment
  CHSC24920  Plectritis ciliosa M. A. Callahan 1976-4-14 13 Contra Costa On west slope ca. 135 m. e of house at 1976 Mohawk Dr. Pleasant Hill. 140 Comment
  UC2028088  Plectritis ciliosa Barbara Ertter, Tony Morosco 1998-4-12 15985 Contra Costa Base of Mount Olympia on north side of Mount Diablo, south side of lower end of Olympia Trail. Comment
  JEPS5120  Plectritis macrocera Mary L. Bowerman 1931-3-29 621 Contra Costa Mount Diablo, East Cave Point Ridge East Cave Point Ridge; Mount Diablo, East Cave Point Ridge Comment
  UC28872  Plectritis macrocera Jos. Burtt Davy 1901-4-21 Contra Costa Wildcat Canyon Comment
  CAS-BOT-BC260946  Pleuropogon californicus var. californicus Peter Kamb; Francia Chisaki; Galen Smith 1951-4-14 1978 Contra Costa Margins of small pond 0.2 miles south of junction of Highways 4 and 21, 7 miles north of Walnut Creek Comment
  CAS-BOT-BC356113  Pluchea odorata Walter Knight; J. Dean 1978-8-14 3137 Contra Costa Browns Island Comment
  JEPS111727  Pluchea odorata var. odorata D. G. Kelch 2004-7-9 04 .311 Contra Costa Pacheco Marsh Pacheco hill Marsh west of Pacheco Slough 5 Comment
  UC761988  Pluchea odorata var. odorata R. F. Hoover 1937-8-31 2703 Contra Costa Avon Comment
  JEPS100035  Poa annua S. O'Neil 2003-5-8 SEO 28 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS87903  Poa bulbosa Barbara Ertter, Lynne Hosley 1993-4-17 11507 Contra Costa ca. 10 air mi. n. Livermore (hills in lee of Mt. Diablo, e. side open meadow along Blue Oak trail, Morgan Territory); Morgan Territory 609 Comment
  UC606727  Poa howellii Edward Lee 1936-4-19 2007 Contra Costa ne slope of island Red Rock; San Francisco Bay Comment
  UC692328  Poa howellii Mary L. Bowerman 1933-5-21 2148 Contra Costa below Grape Spring (s from Curry Canyon); Mt Diablo Comment
  UC692329  Poa howellii Mary L. Bowerman 1933-5-22 2167 Contra Costa w of 1970 Inner Black Hills; Mt Diablo, Inner Black Hills Comment
  UC691176  Poa secunda subsp. secunda Mary L. Bowerman 1932-4-9 1323 Contra Costa s spur on meridian Inner Black Hills; Mt Diablo Comment
  UC691187  Poa secunda subsp. secunda Mary L. Bowerman 1935-4-26 2900 Contra Costa w Indian Ceremonial spring; Mt Diablo 1021 Comment
  UC790973  Poa secunda subsp. secunda A. A. Beetle 1941-3-23 1713 Contra Costa 1 mi e St Mary's College 182 Comment
  CAS-BOT-BC236387  Poa secunda subsp. secunda Mary L. Bowerman 1935-4-19 2859 Contra Costa Mount Diablo. Near Turtle Rock, hillside on opposite side of the road 457 Comment
  UC25592  Pogogyne douglasii subsp. parviflora W. L. Jepson May 23-24 1891 Contra Costa Mount Diablo Comment
  UC163221  Pogogyne serpylloides H. M. Hall 1901-4-5 1738 Contra Costa Mount Diablo Comment
  JEPS62457  Pogogyne serpylloides John Thomas Howell 1930-4-22 4747 Contra Costa Bald Peak, Berkeley Hills. 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
  JEPS65184  Pogogyne zizyphoroides L. R. Heckard 1971-4-15 2483 Contra Costa At intersection of Holey Road, South of Byron. Comment
  UC32588  Pogogyne zizyphoroides Chestnut and Drew 1889-4-18 Contra Costa Antioch Comment
  UC1192326  Polygonum amphibium Malcolm A. Nobs and S. Galen Smith 1949-7-7 938 Contra Costa Webb Island Sacramento Delta peat lands 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
  CDA9497  Polygonum aviculare D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .222 Contra Costa Byron Airport. Comment
  CHSC23355  Polygonum aviculare Willis Ball 1975-3-2 462 Contra Costa Contra Loma Regional Park. In area #4. In sand on beach e side of lake ca. 75 yds s of dam. 30 Comment
  UC1818962  Polygonum persicaria Barbara Ertter 1995-8-19 14504 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
  UC1784203  Polygonum persicaria Ethel Crum 1930-9-29 862 Contra Costa Marsh Creek Road to Holt Comment
  JEPS95765  Polygonum ramosissimum Dianne Lake 1999-10-5 Contra Costa NW end of wetland at NE corner of Plymouth and Hillcrest, 1 block N of E 18th St. Antioch 3 Comment
  UC1478302  Polypodium Alan R. Smith with Tom Lemieux 1981-11-19 827 Contra Costa n slope Mt. Diablo (creekside ravine along North Gate Rd, 3.6 mi w of (below) Park HQ (South Gate Rd. junction)); Mt. Diablo State Park 640 Comment
  JEPS112032  Polypodium calirhiza D. G. Kelch 2004-3-5 04 .4 Contra Costa Martinez - Rankin Open Space Rankin Park, Martinez 68 Comment
  JEPS79492  Polypodium calirhiza Edward Lee with Annetta Carter 1936-1-12 1709 Contra Costa canyon immediately s of Nortonville Comment
  RSA0024902  Polypogon Peter Rubtzoff 1968-9-18 5966 Contra Costa North Gate Road, ca. 5 miles northwest of Mt. Diablo State Park north entrance. Comment
  UCD37371  Polypogon interruptus Beecher Crampton 1959-9-3 5454 Contra Costa Contra Costa County, 2 miles north of city of Orinda, Bear Creek, East Bay Municipal Utilities District Project. 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
  UC691910  Polypogon monspeliensis Mary L. Bowerman 1932-11-19 1656 Contra Costa Lower Grapevine Spring Mount Diablo; , Lower Grapevine Spring Comment
  CAS-BOT-BC232581  Polypogon monspeliensis Mary L. Bowerman 1932-8-27 1521 Contra Costa Mount Diablo. Spring S of Turtle Rock Comment
  CAS-BOT-BC237471  Polypogon viridis Mary L. Bowerman 1936-8-17 3527 Contra Costa Mount Diablo. Sulphur Spring in Pine Canyon 137 Comment
  JEPS111521  Populus alba D. G. Kelch 2005-5-5 05 .205 Contra Costa Point Pinole - Giant Marsh; Giant Salt Marsh Comment
  UC1925893  Populus fremontii Donald G. Nelson 1937-4-29 514 Contra Costa Road from Pinole south towards Alhambra Road. Comment
  UC579898  Populus fremontii subsp. fremontii Annetta Carter 1934-3-30 466 Contra Costa Nortonville Comment
  UC1950411  Potamogeton diversifolius Barbara Ertter with Brad Olson 1991-9-28 10839 Contra Costa San Pablo Reservoir between Orinda and El Sobrante, at S end of reservoir Comment
  NY436345  Potentilla frondosa E. L. Greene 1889-5-12 s.n. Contra Costa Comment
  CDA23062  Potentilla glandulosa D. G. Kelch, D. A. Weinstein 2008-4-25 8 .078 Contra Costa Alvarado Park (west end of Wildcat Canyon Park) on north-facing hillside above Hindu temple in mixed scrub/grassland. Comment
Read comments
Jan 7 2016
  CDA29217  Potentilla glandulosa D. G. Kelch 2006-5-7 9 .153 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  JEPS23820  Proboscidea lutea G. Thomas Robbins 1959-8-1 4114 Contra Costa roadside berm of frontage road just s Mt. Diablo Blvd. ((about 0.5 mi e of concrete bridge at Charles Hill and about 0.2 mi w of jct. of Hidden Valley Rd.), 2 mi w of Lafayette) 144 Comment
  JEPS23821  Proboscidea lutea G. Thomas Robbins 1959-8-1 4114 Contra Costa roadside berm of frontage road just s Mt. Diablo Blvd. ((about 0.5 mi e of concrete bridge at Charles Hill and about 0.2 mi w of jct. of Hidden Valley Rd.), 2 mi w of Lafayette) 144 Comment
  UC2027948  Prunus cerasifera Barbara Ertter 1997-9-7 15791 Contra Costa North side Mount Diablo, cabin site on Donner Creek, in persisting orchard. Comment
  JEPS99978  Prunus dulcis G. Smick 2003-2-18 GAS 63 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2028004  Pseudognaphalium canescens Barbara Ertter with Amy Rusev 1998-1-17 15901 Contra Costa edge of Lime Ridge Open Space at NW foot of Mount Diablo, around former quarry [subsequently developed] on south side of Ygnacio Valley Road. Comment
  CAS-BOT-BC226636  Pseudognaphalium luteoalbum Virginia I. Dains; Walter Knight 1986-8-8 5500 Contra Costa Jct Rock S1 & Werner Cut Comment
  CAS-BOT-BC357222  Pseudognaphalium microcephalum Walter Knight; I. Knight 1977-7-25 s.n. Contra Costa Black Diamond Mines Regional Preserve. Nortonville town site 167 Comment
  UC691826  Pseudognaphalium stramineum Mary L. Bowerman 1938-9-17 3717 Contra Costa Johnny Walker Spring Mount Diablo, Johnny Walker Spring 731 Comment
  UC1795802  Pseudognaphalium stramineum Barbara Ertter, Rich Rabeler 1994-6-6 12817 Contra Costa Point Isabel in south Richmond; black cinders on old railroad bed north of Costco; landfill. Comment
  UC1795807  Pseudognaphalium stramineum Barbara Ertter, Drew Hansen 1995-3-28 13936 Contra Costa Chevron oil refinery in northwest Richmond off of Castro St. edge of levees thru created bioremediation marsh south of Wildcat Creek. Comment
  SEINET3875499  Pseudotsuga menziesii James K. Detling 1963-3-21 40 Contra Costa Near Glorietta School, Orinda.; 0 30 Comment
  SEINET3875503  Pseudotsuga menziesii Michael R. Tansey 1963-2-15 2 Contra Costa North end of Jewel Lake in Tilden Regional Park, California.; 0 152 Comment
  UC552339  Psilocarphus oregonus Lucile R. Mason 1935-4-9 Contra Costa Marsh Creek Comment
  CDA29229  Psilocarphus tenellus D. G. Kelch 2005-5-13 05 .272-D Contra Costa Carquinez Strait; Above and west of Edwards Canyon, nr Crockett. Comment
  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
  JEPS111756  Psilocarphus tenellus D. G. Kelch 2005-5-1 05 .204 Contra Costa Crockett - Edwards Canyon 100 Comment
  UC2028079  Psilocarphus tenellus var. tenellus Barbara Ertter, Tony Morosco 1998-4-12 15991 Contra Costa Base of Mount Olympia on north side of Mount Diablo, open flat below quarry NE of Olympia Trail. Comment
  POM138622  Ptelea angustifolia Katherine Brandegee 1907-6-16 s.n. Contra Costa Antioch Comment
  POM138974  Ptelea baldwinii subsp. crenulata M. S. Baker 1904-6-22 s.n. Contra Costa Mt. Diablo above Walkers. Comment
Read comments
Mar 6 2011
  CAS-BOT-BC148625  Ptelea crenulata Mary L. Bowerman 1930-6-22 357 Contra Costa Mitchell Canyon, Mount Diablo Comment
  CAS-BOT-BC148630  Ptelea crenulata Alice Eastwood; John Thomas Howell 1936-4-19 2134 Contra Costa Nortonville Comment
  JEPS40169  Ptelea crenulata W. L. Jepson 1920-9-6 9082 Contra Costa Mt. Diablo Comment
  JEPS97553  Ptelea crenulata R. D. Stone 1985-3-15 657 Contra Costa Souza Ranch Byron (hills dividing the Kellogg and Brushy Creek drainages; ca. 5 mi SW of) 259 Comment
  UC1277976  Ptelea crenulata B. Crampton 1957-7-9 4273 Contra Costa 2-3 mi nw Martinez (slopes above the Carquinez Straits) Comment
  UC1733836  Ptelea crenulata Kay H. Beach 1941-4-30 1080 Contra Costa about 7 mi w Byron (n bank along Marsh Creek); Marsh Creek 30 Comment
  UC17380  Ptelea crenulata W. H. Brewer 1862-5-7 1052 Contra Costa n slope Mount Diablo 30 Comment
  UC30132  Ptelea crenulata W. C. Blasdale 1893-5-13 Contra Costa Summerville Comment
  UC583288  Ptelea crenulata Alice Eastwood and John Thomas Howell 1936-4-19 2134 Contra Costa Nortonville Comment
  UC692585  Ptelea crenulata Mary L. Bowerman 1935-6-1 3099 Contra Costa gully e Mitchell-Pine divide; Mount Diablo 975 Comment
  UC909620  Ptelea crenulata Kay H. Beach 1941-4-30 1080 Contra Costa about 7 mi w Byron (n bank along Marsh Creek); Marsh Creek 30 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
  UCR17982  Ptelea crenulata Dr. H. de Forest 1930-4-6 s.n. Contra Costa San Francisco Bay Region, SE of Nortonville, SW of Antioch, east of Concord 274 Comment
  CAS-BOT-BC148633  Ptelea crenulata H. M. Hall 1910-8-17 10277 Contra Costa Upper Horse Valley (6 mi. s. of Antioch) 213 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
  SEINET951733  Pteridaceae T. R. Van Devender, S. H. Stein 1980-1 Contra Costa Lafayette Reservoir Comment
  JEPS111934  Pteridium aquilinum A. G. Murdock 2003-9-12 160 Contra Costa Pinole On hill east of I-80 between Appian Way and Pinole Valley Road 33 Comment
  UC6916  Pterostegia drymarioides W. L. Jepson 1891-5-23 Contra Costa Mt. Diablo Comment
  UC2028108  Pyracantha fortuneana Barbara Ertter with Christopher Baysdorfer 1998-5-10 16115 Contra Costa Lime Ridge Open Space northwest of Mount Diablo. Comment
  UC1748008  Quercus E. Dean, M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 657 Contra Costa Fossil Ridge, just below and 0.1 mi along fire rd that begins at the parking lot SE of Rock City and climbs onto Fossil Ridge in southeasterly direction Mount Diablo State Park 487 Comment
  CAS-BOT-BC36505  Quercus Paul F. Covel 1939-4-30 s.n. Contra Costa Somersville Comment
  CAS-BOT-BC45660  Quercus agrifolia Mary L. Bowerman 1930-10-25 495 Contra Costa Near Sloan Road, Mount Diablo Comment
  CDA32855  Quercus agrifolia D. G. Kelch 2010-10-5 10 .416 Contra Costa The Delta; Just east of Antioch bridge. Comment
  UC1135309  Quercus agrifolia R. W. Lundh 1932-8-17 132 Contra Costa 1 mi E of Round Valley 518 Comment
  UCD45049  Quercus agrifolia J. M. Tucker 1946-4-4 1391 Contra Costa Spreading tree 35 feet tall; steep southeast-facing slope, elevation ca. 1200 feet; ca. 100 yards northwest of intersection of Grizzly Peak Boulevard and road to Easport, Oakland hills, Contra Costa County, California. Comment
  UCD83548  Quercus agrifolia Alison McNally 2009-5-9 s. n. Contra Costa Antioch, southern shore of San Joaquin River, Antioch Dunes National Wildlife Refuge. Comment
  UC691275  Quercus chrysolepis Mary L. Bowerman 1930-10-25 496 Contra Costa Sloan Road Mount Diablo Comment
  UCR247487  Quercus chrysolepis Dean Kelch 2011-5-4 11 .224 Contra Costa Central Coast, near Morgan Territory Regional Park, west of Morgan Territory Road 610 Comment
  CAS-BOT-BC86648  Quercus douglasii John Thomas Howell 1926-3-7 1658 Contra Costa Mt. Diablo near toll gate Comment
  RSA476582  Quercus douglasii Bonnie C. Templeton 1962-6-20 s.n. Contra Costa Mount Diablo Comment
  RSA87177  Quercus douglasii Joseph A. Ewan 1933-10-15 8028 Contra Costa Mount Diablo, south slope flat. 762 Comment
  UC1135462  Quercus douglasii C. M. Belshaw 1936-5-15 2133 Contra Costa Long Valley Mt. Diablo Quad. 228 Comment
  UCD45689  Quercus douglasii G. L. Stebbins, jr. 1945-10-14 3590 Contra Costa Northeast side of Mt. Diablo. Beside barn on road to old quicksilver mine. Comment
  CDA37340  Quercus garryana D. G. Kelch 2010-10-31 10 .445 Contra Costa South Pinole Peak. Comment
  CDA39042  Quercus garryana D. G. Kelch 2011-6-5 11 .57 Contra Costa Carquinez Strait; South of Crockett, south of Cummings Skyway. Comment
  CDA8370  Quercus garryana D. G. Kelch 2003-11-24 3 .342 Contra Costa Carquinez Strait; Between Bull Valley Staging Area and Port Costa. Comment
  CHSC83237  Quercus garryana E. Dean; M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 656 Contra Costa Mount Diablo State park, Fossil Ridge, along fire road that begins at the parking lot southeast of Rock City and climbs onto Fossil Ridge in southeasterly direction, ca. 0.1 mile from Rock City, slightly downslope of road. 487 Comment
  CAS-BOT-BC94291  Quercus garryana Mary L. Bowerman 1930-10-19 493 Contra Costa Fossil Ridge S of Garden of the Gods Comment
  CAS-BOT-BC94292  Quercus garryana Mary L. Bowerman 1935-11-30 3351 Contra Costa In draw SW of Gibraltar Rock, Fossil Ridge Comment
  JEPS99999  Quercus kelloggii S. O'Neil 2003-3-11 SEO 11 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  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
  UCD84948  Quercus palmeri Chuck Hughes 2010-3-29 220 Contra Costa About 0.4 mile south of Vasco Road. 326 Comment
  JEPS95240  Quercus parvula Stephen W. Edwards March 1994 Contra Costa Sobrante Ridge Regional Preserve 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
  UC1748015  Quercus parvula var. shrevei E. Dean with B. Ertter, J. M. Tucker, K. Chaney 2000-9-13 650 Contra Costa El Sobrante Ridge, upslope of the terminus of Heavenly Ridge Rd., jct of Heavenly Ridge Trail and Manzanita Trail El Sobrante 213 Comment
  CAS-BOT-BC104710  Quercus wislizeni Mary L. Bowerman 1930-7-7 287 Contra Costa Mount Diablo. Summit Comment
  CAS-BOT-BC104713  Quercus wislizeni C. Keefer 1922-9-25 s.n. Contra Costa Moraga Ridge Comment
  CDA31191  Quercus wislizeni D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .228 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  POM301008  Quercus wislizeni Mary L. Bowerman 1934-3-18 2480 Contra Costa Russelmann Park; end of road Comment
Read comments
Aug 11 2011
  UC1543170  Quercus wislizeni Donald G. Nelson 1938-11-6 587 Contra Costa about 1 mi beyond Marsh Creek Springs (Marsh Creek Highway, ne of Mt. Diablo) Comment
  UC5707  Quercus wislizeni W. H. Brewer 1861-9-25 843 Contra Costa Mount Diablo Comment
  UC691296  Quercus wislizeni Mary L. Bowerman 1933-9-30 2449 Contra Costa Russelman Park Mount Diablo Comment
  UCD47516  Quercus wislizeni R. W. Lundh 1932-8-17 129 Contra Costa 1 mile E. of Round Valley. Quadrangle: Mt. Diablo (Contra Costa), Sec. 9, T. 1S, R 2E. 304 Comment
  UC691290  Quercus wislizeni var. frutescens Mary L. Bowerman 1931-4-25 777 Contra Costa Mount Diablo Comment
  UC92077  Rafinesquia californica E. L. Greene 1886-5-24 Contra Costa Mount Diablo Comment
  CAS-BOT-BC362441  Rafinesquia californica Mary L. Bowerman 1930-6-14 327 Contra Costa Mount Diablo. Meridian Peak little below summit Comment
  POM270021  Ranunculus aquatilis var. capillaceus Mary L. Bowerman 1933-3-18 1754 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
  CAS-BOT-BC379109  Ranunculus aquatilis var. diffusus A. D. E. Elmer 1903-5-1 4318 Contra Costa Mount Diablo Comment
  JEPS112060  Ranunculus californicus D. G. Kelch 2005-4-15 05 .138 Contra Costa Rodeo Creek 100 ms west of previous site 100 Comment
  UC1126165  Ranunculus californicus R. C. Wilson 1935-3-14 135 Contra Costa Sycamore Creek Mt. Diablo Quadrangle (head) Comment
  UC1300986  Ranunculus californicus Helen K. Sharsmith 1962-3-25 4912 Contra Costa hills between Happy Valley and Alhambra Valley; San Francisco Bay Region 304 Comment
  UC70183  Ranunculus californicus J. Burtt Davy May 1898 Contra Costa Danville Region of Mount Diablo Comment
  POM268440  Ranunculus californicus Mary L. Bowerman 1930-6-5 246 Contra Costa W road 5.8 miles fron entrance to Park, Mt Diablo, Contra costa County Comment
  JEPS73327  Ranunculus canus Edward Lee 1935-3-10 1284 Contra Costa Donovan Road Kirker Pass ((w watershed of Kirker Creek)) Comment
  RSA268401  Ranunculus canus Lyman Benson 1935-3-16 6275 Contra Costa Mitchell Canyon near Clayton; Mt. Range: Mt. Diablo; Watershed: Walnut Creek. 244 Comment
  POM149874  Ranunculus canus Jos. Burtt Davy 1898-05 s.n. Contra Costa San Ramon, Mt Diablo Comment
Read comments
Jan 23 2011
  POM268399  Ranunculus canus Lyman Benson 1931-3-18 2655 Contra Costa Mt. Diablo near Danville; Mt. Range: Mt. Diablo; Watershed: Walnut Creek 152 Comment
  UC13970  Ranunculus canus var. canus Chesnut and Drew 1889-4-17 Contra Costa Clayton Comment
  POM268450  Ranunculus canus var. laetus Lyman Benson 1935-3-16 6273 Contra Costa Mitchell Canyon near Clayton; Mt. Range: Mt. Diablo; Watershed: Walnut Creek. 244 Comment
  POM268451  Ranunculus canus var. laetus Lyman Benson 1935-3-16 6274 Contra Costa Mitchell Canyon near Clayton; Mt. Range: Mt. Diablo; Watershed: Walnut Creek. 244 Comment
  UC118247  Ranunculus hebecarpus T. S. Brandegee May 1889 Contra Costa Antioch Comment
  UC692126  Ranunculus hebecarpus Mary L. Bowerman 1933-4-9 1832 Contra Costa Donner Canyon Mount Diablo (w fork, by stream (where large fork to e)) 243 Comment
  CDA31880  Ranunculus hebecarpus D. G. Kelch 2008-4-6 8 .033 Contra Costa Black Diamond Mines Regional Park. Near small picnic area between parking lot and mine entrance. 0 Comment
  UC634972  Ranunculus hebecarpus H. L. Mason 1929-3-29 5126 Contra Costa two mi above Clayton (Marsh Creek Road) Comment
  JEPS112941  Ranunculus lobbii Dean W. Taylor 2001-3-16 17610 Contra Costa eastern flank Mt. Diablo, Mount Diablo State Park, along Olympic Trail (fire road) about 0.25 road miles W from Marsh Creek Road (ca. 5 air miles South from Clayton) 298 Comment
  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
  UCD97103  Ranunculus sceleratus Mr. Nevin 1924-3-24 s.n. Contra Costa Antioch. Comment
  POM313443  Ranunculus sceleratus H. L. Mason 1937-6-21 11547 Contra Costa 0.5 mile from the S end of Borden Hwy and 1.5 miles W of Byron. Comment
  CHSC116607  Raphanus raphanistrum Lowell Ahart; Josephine Guardino 2016-4-19 20772 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. 1.4 miles northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  UC650429  Raphanus sativus Ira L. Wiggins 1930-4-18 4610 Contra Costa Jersey Island Comment
  CDA29170  Rhamnus alaternus D. G. Kelch 2008-6-1 8 .219 Contra Costa Carquinez Strait; Rodeo Shore. Comment
  JEPS41994  Rhamnus californica subsp. californica W. L. Jepson 1899-10-7 13975 Contra Costa near Bald Peak (s Contra Costa County); Berkeley Comment
  JEPS112065  Rhamnus crocea A. G. Murdock 2004-5-28 290 Contra Costa Pinole Peak 405 Comment
  UC692584  Rhamnus crocea Mary L. Bowerman 1932-9-17 1579 Contra Costa Donner Canyon, w branch Mount Diablo Comment
  CAS-BOT-BC59896  Rhamnus ilicifolia Mary L. Bowerman 1932-9-17 1579 Contra Costa Donner Canyon, w. branch: Canyon bottom. Comment
  UC1121873  Rhamnus ilicifolia R. W. Lundh 1932-8-15 127 Contra Costa 1 mi w Round Valley; Mt. Diablo Quad. 228 Comment
  JEPS95251  Rhamnus tomentella Steve Edwards 1995-9-22 Contra Costa Briones Regional Park, Bear Creek Entrance, near junction of trails to archery range and lagoons Comment
  UC692597  Rhamnus tomentella subsp. tomentella Mary L. Bowerman 1933-9-3 2419 Contra Costa s of Meridian-North Peak saddle; Mount Diablo Comment
  CAS-BOT-BC200698  Rhus aromatica Mary L. Bowerman 1933-3-25 1776 Contra Costa Emmons Canyon, off Stone Valley Comment
  POM181150  Ribes californicum J. T. Howell 1931-2-21 5730 Contra Costa Mt. Diablo. Comment
  UC126876  Ribes californicum Earle Mulliken 1905-1-28 161 Contra Costa Wildcat Canyon Berkeley Hills Comment
  UC570838  Ribes californicum Herbert L. Mason 1926-3-7 2709 Contra Costa Summit Mt. Diablo Comment
  UCSB2606  Ribes californicum var. californicum Keator, Glenn 1959-7-1 Contra Costa About 2 mile above Laurel camp; on Mt. Diablo Comment
  CHSC20642  Ribes divaricatum Carol C. Getzinger 1964-4-26 51 Contra Costa Wildcat Canyon Road 1.3 miles from junction with Spruce Street and Grizzly Peak Boulevard. 152 Comment
  UC11525  Ribes divaricatum var. pubiflorum J. Burtt Davy 1895-4-13 997 Contra Costa Lafayette Comment
  UC692225  Ribes malvaceum Mary L. Bowerman 1931-2-8 509 Contra Costa near summit Meridian Peak; Mount Diablo Comment
  RSA0021635  Ribes malvaceum J. T. Howell 1926-3-7 1667 Contra Costa Mt. Diablo. Comment
  JEPS111986  Ribes menziesii D. G. Kelch 2005-2-28 05 .8 Contra Costa Vaca Canyon Vaca Canyon Alhambra Valley Road Bay Forest road cut with Arbutus 165 Comment
  JEPS116868  Ribes menziesii David Gowen 2007-9-1 790 Contra Costa Huckleberry Regional Preserve. Along trail descending to canyon bottom near trail junction above creek. Comment
  CAS-BOT-BC209362  Ribes sanguineum var. glutinosum John Thomas Howell 1925-9-12 1438 Contra Costa San Leandro Canyon, Oakland Hills Comment
  UC1598928  Rigiopappus leptocladus Mrs. K. Curran May 1883 Contra Costa Antioch Comment
  CAS-BOT-BC362965  Rigiopappus leptocladus Brandegee No date on label s.n. Contra Costa Antioch Comment
  UC1727989  Romulea rosea var. australis Gregg Weber 1998-5-6 Contra Costa San Pablo Ridge trail Comment
  CAS-BOT-BC74411  Rorippa curvisiliqua Walter Knight; Joanne Dean 1978-8-14 3171 Contra Costa Browns Island. Comment
  UC691057  Rorippa nasturtium-aquaticum Mary L. Bowerman 1930-6-5 244 Contra Costa West Road 5.8 mi from entrance Mount Diablo (West Road = North Road) Comment
  CAS-BOT-BC147409  Rosa californica Walter Knight; Joanne Dean 1978-8-14 3180 Contra Costa Browns Island Comment
  JEPS112081  Rosa californica D. G. Kelch 2003-8-13 03 .123 Contra Costa Vaca Canyon 165 Comment
  UC136538  Rosa californica Katharine Brandegee 1907-7-4 Contra Costa marsh between Martinez and Port Costa Comment
  UC691162  Rosa californica Mary L. Bowerman 1930-6-26 375 Contra Costa junction of Riggs Canyon Rd and Livermore Road; Mount Diablo Comment
  UC1789172  Rosa eglanteria Barbara Ertter 2001-11-3 17812 Contra Costa Tilden Regional Park, Selby Trail ca. 1/4 miles north of Lake Anza Comment
  JEPS45672  Rosa gymnocarpa W. L. Jepson 1924-12-6 10669 Contra Costa Pinehurst San Leandro Creek Comment
  SEINET10957118  Rosa sempervirens D. Gowen 2007-5-31 Gowen 695 Contra Costa Carquinez Regional Park. NW Contra Costa County, near Crockett, W of jct. San Pablo Ave. and Rio Del Vista. 30 Comment
  CAS-BOT-BC147207  Rubus parviflorus Mary L. Bowerman 1933-5-19 2140 Contra Costa Below Morgan Sulphur Spring 335 Comment
  JEPS47707  Rubus ursinus W. L. Jepson 1943-6-8 20845 Contra Costa on ne slope Moraga Ridge (near the foot of trail that goes up the hill at n end to summit); ne slope of Moraga Ridge Comment
  UC12995  Rubus ursinus W. H. Brewer 1862-4-30 1013 Contra Costa Camp 69 Walnut Creek (Walnut Creek) Comment
  OBI70549  Rumex acetosella D. G. Kelch, D. A. Weinstein 2008-4-15 8 .042 Contra Costa Carquinez Strait: S Port Costa along Mckewen Rd 137 Comment
  UC1594200  Rumex acetosella Jerry Powell 1992-4-7 1635 Contra Costa Richmond Field Station Comment
  JEPS112019  Rumex conglomeratus Dean G. Kelch and Andrew G. Murdock 2005-5-13 DGK 05 .247 Contra Costa Martinez. South of oil refinery along Railroad tracks in fragment of habitat. Comment
  CAS-BOT-BC421739  Rumex conglomeratus Walter Knight 1965-9-7 1176 Contra Costa Antioch sand dunes. Comment
  CDA22902  Rumex crispus D. G. Kelch 2006-7-14 6 .33 Contra Costa Carquinez Strait; Along Marine Vista Ave immmediately west of Pacheco Slough. East of Martinez. Comment
  CAS-BOT-BC421625  Rumex crispus Ira L. Wiggins 1930-4-18 4605 Contra Costa Jersey Island Comment
  UC1795777  Rumex pulcher Barbara Ertter, Mary Bowerman 1995-6-11 14247 Contra Costa Shell Ridge Recreation Area southeast of Walnut Creek, at west base Mt. Diablo.; annual grassland near Indian Valley School entrance, clay soil (planted Clarkia also present). 91 Comment
  UCD101441  Rumex pulcher Rimo Bacigalupi; L. R. Heckard 1965-5-11 9075 Contra Costa On West side of Brooks Island (in San Francisco Bay south-west of Richmond). 6 Comment
  UC2012982  Rumex salicifolius var. salicifolius Barbara Ertter with Tony Morosco 1996-7-27 15030 Contra Costa Mount Diablo State Park, Donner Creek ca halfway between Regency Drive trailhead and old cabin site Comment
  JEPS22039  Rupertia physodes G. Thomas Robbins 1958-7-6 3890 Contra Costa along Pinehurst Road about 1/4 mi above Alameda Co. line (on slopes above Upper San Leandro Reservoir) 228 Comment
  UC1745890 Image available Rupertia physodes Annetta M. Carter, Edward Lee 1936-5-24 1191 Contra Costa Marsh Creek about 2 mi. SE of Curry Canyon. Comment
  CDA1428  Ruppia maritima D. G. Kelch, Andrew G. Murdock 2004-4-26 4 .138 Contra Costa Carquinez Strait Region; Pt. Pinole in tidal pond. Comment
  CAS-BOT-BC454141  Ruppia maritima J. W. Congdon 1889-6-20 10 Contra Costa Byron Springs Comment
  UC1818945  Sagina apetala Barbara Ertter, Mary Bowerman, Lisa Schultheis 1995-3-31 13943 Contra Costa Mount Diablo State Park, lower end of Mitchell Canyon south of Clayton, oak woodland/grassland open flat area on east side of stream not far from trail head. 182 Comment
  UC2070543  Sagina decumbens subsp. occidentalis Barbara Ertter with Linda Vorobik 2002-4-6 17821 Contra Costa South flank of Mount Diablo, west fork of Alamo Creek at end of spur road under powerlines. Comment
  POM208488  Sagittaria latifolia H. M. Hall 1916-8-16 10273 Contra Costa Antioch. Region of San Francisco Bay. Comment
  UC69365  Salix Wm. W. Mott 1905-1-10 Contra Costa near Berkeley (n.e. corner of San Pablo Ave. & McAvoy Lane, opposite 7 Mile House) Comment
  CAS-BOT-BC103027  Salix bonplandiana Walter Knight; R. Bensler; B. Atwataer; J. Dean; B. Mortensen 1979-4-13 3368 Contra Costa South Landing. Browns Island Comment
  UC691921  Salix exigua var. hindsiana Mary L. Bowerman 1935-5-30 3081 Contra Costa by Donner Canyon stream Donner Canyon; Mt. Diablo 152 Comment
  CAS-BOT-BC107859  Salix gooddingii Walter Knight 1978-8-27 3195 Contra Costa Along reservoir's edge. Contra Loma Regional Park - Sierra Nevada 30 Comment
  UC437380  Salix laevigata J. Burtt Davy 1895-4-13 1005 Contra Costa near Lafayette Comment
  UC494334  Salix laevigata Annetta M. Carter 1933-3-12 266 Contra Costa ca. 1.5 mi e Contra Costa Co. Preventorium (Marsh Creek Rd.) Comment
  UC5013  Salix laevigata var. congesta H. N. Bolander Apr 1866 6333 Contra Costa Mt. Diablo Comment
  POM300612  Salix lasiolepis Mary L. Bowerman 1931-2-8 512 Contra Costa Mt. Diablo. By road. 762 Comment
  UC1196658  Salix lasiolepis Joseph P. Tracy 1930-11-27 9260 Contra Costa near Lafayette 304 Comment
  UC504068  Salix lasiolepis Lee Bonar 1933-4-17 Contra Costa near Nortonville (hills e of Pittsburg) Comment
  UC692032  Salix lasiolepis Mary L. Bowerman 1931-3-14 567 Contra Costa Riggs Canyon Mount Diablo (e side) Comment
  UC1196648  Salix lasiolepis Joseph P. Tracy 1903-10-30 1993 Contra Costa Woolsey Canyon Region about San Francisco Bay, Berkeley Hills (branch) 152 Comment
  CAS-BOT-BC129556  Salix lasiolepis var. lasiolepis Mary L. Bowerman 1932-2-13 1087 Contra Costa By Alamo Creek (West Branch) - Mount Diablo 289 Comment
  UC1607511  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
  UCR265174  Salpichroa rhomboidea Barbara Ertter 1991-5-12 9818 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
  UC2029165  Salsola soda Barbara Ertter 1990-9-30 9659 Contra Costa NW CONTRA COSTA CO.: Point Pinole Regional Shoreline on San Pablo Bay, north Richmond; edge of salicornia marsh on N edge of park. Comment
  JEPS79009  Salsola tragus Edward Lee with Annetta Carter 1935-8-17 1618 Contra Costa just e. Antioch Comment
  SEINET7718207  Salvia carduacea Chesnut, Drew 1889-4-18 Contra Costa Antioch Comment
  CAS-BOT-BC233287  Salvia mellifera H. E. McMinn No date on label. 130 Contra Costa Mt. Diablo Comment
  JEPS100053  Salvia mellifera G. Smick 2003-3-27 GAS 94 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD125593  Salvia mellifera P. B. Kennedy 1925-4-26 s.n. Contra Costa Mt. Diablo. Road to Sycamore Canon. Comment
  UCSB5807  Salvia mellifera Kamb, Peter; Chisaki, Francia 1950-3-18 Contra Costa Black Hills; S. of Mt. Diablo; on south road to Mt. Diablo; from Danville 365 Comment
  JEPS12714  Sambucus mexicana Katharine Brandegee 1907-6-16 Contra Costa Antioch Comment
  UC139299  Sambucus mexicana Katharine Brandegee 1907-7-4 Contra Costa marshes near Martinez Comment
  CAS-BOT-BC238635  Sambucus nigra subsp. caerulea Walter Knight 1965-3-1 894 Contra Costa Antioch dunes 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
  CAS-BOT-BC223247  Sanicula bipinnata Alice Eastwood; John Thomas Howell 1936-4-19 s.n. Contra Costa Nortonville Comment
  JEPS260  Sanicula bipinnata W. L. Jepson 1923-4-22 9870 Contra Costa Mt. Diablo Comment
  JEPS100132  Sanicula bipinnata G. Smick GAS 90 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2028121  Sanicula crassicaulis Barbara Ertter with Richard K. Brummitt 1998-5-6 16087 Contra Costa Lower Donner Canyon Road on north base of Mount Diablo, ca 1/2 miles south of Donner cabin site. Comment
  PASA1824  Sanicula menziesii Annetta Carter 1929-3-31 Contra Costa Near Clayton. Hills north of Mt. Diablo Comment
  JEPS2845 Image available Sanicula saxatilis Edw. L. Greene 1892-6-1 Contra Costa Mt. Diablo Comment
  LA33017  Sanicula saxatilis Lincoln Constance; T. Morley, Ren Hwa. Shan, W. H. Wagner 1946-4-26 3036 Topotype Contra Costa Mount Diablo, summit SW of lookout 1158 Comment
  UC194920  Sanicula saxatilis H. M. Hall 1916-5-31 10136 Contra Costa along east crest of Mount Diablo Mount Diablo 1158 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
  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
  JEPS48656  Saxifraga californica Elsa Kraeger 1926-3-7 Contra Costa at Toll Gate on way to Mount Diablo Comment
  CDA7904  Scabiosa atropurpurea A. G. Murdock, D. G. Kelch 2003-9-12 200 Contra Costa Carquinez Strait; Nr Selby, W of Crockett. Comment
  SEINET3840825  Scabiosa atropurpurea Unknown 2006-6-23 6 .322 Contra Costa West Valona, West of Zampa Bridge above San Pablo avenue, along small stream draining north into the Western end of the Carquinez Strait 91 Comment
  JEPS75490  Scandix pecten-veneris P. F. Yorks 1974-4-19 134 Contra Costa 2 km s of Bear Creek Road (n of Briones Reservoir, on Hampton Road in Hampton Road Natural Reserve); Hampton Road Natural Reserve 200 Comment
  UCD128067  Scandix pecten-veneris Morris Halperin 1929-4-21 s.n. Contra Costa Morago Valley. Comment
  CAS-BOT-BC111377  Schoenoplectus acutus var. occidentalis John Thomas Howell; Gordon H. True 1972-6-29 48937 Contra Costa Wet soil or shallow water along ditches on Bryon Hot Springs Road SE of Byron. Comment
  UCD50078  Schoenoplectus acutus var. occidentalis M. Wiesendanger 1926-6-9 1568 Contra Costa Common Tule. Richmond, Cal. Comment
  CAS-BOT-BC111483  Schoenoplectus americanus K. (Mrs.) Brandegee 1882-6-8 s.n. Contra Costa Antioch Comment
  UC2070498  Schoenoplectus californicus Barbara Ertter 2005-8-15 18630 Contra Costa East side of Contra Loma Reservoir south of Antioch, marsh in SE cove. Comment
  UC1607653  Scirpus americanus Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10709 Contra Costa near w end of Browns Island n of Pittsburg (near confluence of Sacramento and San Joaquin Rivers, opposite Pittsburg Marina); Browns Island Comment
  CDA15265  Scirpus californicus G. F. Hrusa, D. Crowe 1998-5-8 14396 Contra Costa Sacramento Delta; E end of Dow Chemical property in Pittsburg. Comment
  CDA15264  Scirpus maritimus G. F. Hrusa, D. Crowe 1998-5-8 14395 Contra Costa Sacramento Delta; E end of Dow Chemical property in Pittsburg. Comment
  UC2029146  Scirpus maritimus Barbara Ertter with Dan Norris 1999-11-14 16854 Contra Costa Black Diamond Mines Regional Preserve, Sand Creek on east side Stewartville Trail, dominated by dense stand of Scirpus americanus. Comment
  CDA39143  Scirpus microcarpus D. G. Kelch 2004-7-9 4 .308 Contra Costa Carquinez Strait; Martinez; Alhambra Creek, near Muir gravesite. Arroyo del Hambre. Comment
  JEPS111898  Scirpus microcarpus D. G. Kelch 2004-7-9 04 .308 Contra Costa Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite. 60 Comment
  CAS-BOT-BC110869  Scirpus microcarpus Miss Mary Leolin Bowerman 1942-10-4 3851 Contra Costa Russelman Park Road 243 Comment
  JEPS100051  Scutellaria tuberosa G. Smick 2003-4-1 GAS 113 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA0068478  Scutellaria tuberosa Katie Gallagher, Nick Jensen 2014-4-26 200 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  UC2029001  Scutellaria tuberosa Barbara Ertter 2000-3-30 16920 Contra Costa North side of Mount Diablo, in chaparral near base of Back Canyon Trail. Comment
  CAS-BOT-BC327382  Senecio aphanactis John Thomas Howell 1933-3-29 10900 Contra Costa Nortonville hills Comment
  JEPS37619  Senecio aronicoides W. L. Jepson 1923-6-10 9992 Contra Costa Upper Marsh Creek Mt. Diablo Comment
  JEPS37620  Senecio aronicoides W. L. Jepson 1921-5-22 9210 Contra Costa n slope Mt. Diablo summit; Mt. Diablo Comment
  OBI75155  Senecio aronicoides David J. Keil 2011-5-29 31036 Contra Costa Mount Diablo State Park. Vicinity of Juniper Campground 900 Comment
  CAS-BOT-BC327443  Senecio flaccidus var. douglasii Walter Knight 1965-9-7 1173 Contra Costa Antioch Comment
  CAS-BOT-BC363700  Senecio hydrophilus Walter Knight; Joanne Dean 1978-8-14 3145 Contra Costa Browns Island Comment
  JEPS37435  Senecio sylvaticus W. L. Jepson 1943-4-24 20762 Contra Costa vicinity San Francisco Bay; Oakland Hills, Moraga Ridge Comment
  JEPS37621  Senecio sylvaticus W. L. Jepson 1921-5-22 9201 Contra Costa Mt. Diablo, summit Mt. Diablo 1173 Comment
  UC691361  Senecio sylvaticus Mary L. Bowerman 1933-5-11 2071 Contra Costa most westerly part of 1931 burn Mount Diablo, Inner Black Hills (Mount Diablo, Inner Black Hills) Comment
  CDA9545  Senecio vulgaris D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .224 Contra Costa Byron Airport. Comment
  UC691352  Senecio vulgaris Mary L. Bowerman 1931-4-4 654 Contra Costa Mount Diablo West Road 4.5 mi from entrance Mount Diablo (= North Road, Mount Diablo); Mount Diablo Comment
  UC13713  Sequoia sempervirens unknown 1888-2-22 Contra Costa Moraga Valley Comment
  SEINET13289876 Image available Sequoia sempervirens L. S. Rose 1934-1 Contra Costa Redwood Canyon Comment
  CDA33679  Sesbania punicea Leopando & Yost 2010-8-18 PDR# 1649543 Contra Costa Martinez: Central Ave. 0 Comment
  CDA33908  Sesbania punicea Guise/Duarte 2008-9-17 PDR# 1454087 Contra Costa Concord; East Olivera Rd., 1/4 mile north of Salvio St. 0 Comment
  CDA23918  Sesuvium verrucosum D. G. Kelch 2006-7-14 6 .329 Contra Costa Carquinez Strait; Along Marine Vista Ave immmediately west of Pacheco Slough. East of Martinez. Comment
  CDA23919  Sesuvium verrucosum D. G. Kelch 2006-7-14 6 .329 Contra Costa Carquinez Strait; Along Marine Vista Ave immmediately west of Pacheco Slough. East of Martinez. Comment
  CAS-BOT-BC243541  Setaria parviflora John Thomas Howell; Gordon H. True 1972-6-29 48933 Contra Costa Along ditches on Byron Hot Springs Road southeast of Byron Comment
  UC1614102  Sidalcea malviflora subsp. malviflora Charles M. Belshaw 1935-6-24 784 Contra Costa Bald Peak ca. 1/2 miles east of Grizzly Peak Comment
  UC1949061  Sidalcea malviflora var. malviflora Barbara Ertter 1991-6-1 10075 Contra Costa Las Trampas Regional Wilderness in hills W of Danville, steep E-facing slope at N end Rocky Ridge Trail Comment
  JEPS111788  Silene gallica D. G. Kelch 2005-3-24 05 .57 Contra Costa Point Pinole: Southern Pt. Pinole 3 Comment
  CDA28920  Silybum marianum D. G. Kelch, Troy MacGregor 2009-5-24 9 .297 Contra Costa Carquinez Strait; Carquinez Loop Trail S of Ozol, S-SW of Martinez, nr Wolcott Ln . Comment
  RSA473573  Silybum marianum B. C. Templeton 1962-6-24 s.n. Contra Costa On the road to Mt. Diablo. Comment
  CDA9510  Sinapis arvensis D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .237 Contra Costa CA Delta; Along Clifton Court Near Clifton Court Forebay. Comment
  CAS-BOT-BC74936  Sinapis arvensis Mary L. Bowerman 1938-5-25 3634 Contra Costa Mount Diablo. North Road 2 miles from North Gate. 182 Comment
  CAS-BOT-BC74939  Sinapis arvensis Walter Knight 1978-5-1 s.n. Contra Costa Contra Loma Regional Park, 6 miles south of San Joaquin River. 68 Comment
  UC2028577  Sinapis arvensis Barbara Ertter, Holly Forbes 1997-4-20 15548 Contra Costa North base of Mount Diablo, trail to Back Creek from Mitchell Canyon trailhead. Comment
  CHSC24841  Sisyrinchium bellum M. A. Callahan 1976-4-15 17 Contra Costa Top of ridge ca. 145m e of house at 1976 Mohawk Dr. Pleasant Hill. 152 Comment
  JEPS112431  Sisyrinchium bellum A. G. Murdock 2004-3-19 220 Contra Costa Luzon Sycamore Ave. just east of Rodeo/Hercules where train crosses Highway 4 (Luzon). Top of ridge to south of road. 60 Comment
  UC2042784  Sisyrinchium bellum Barbara Ertter with John Little 1989-4-2 8107 Contra Costa Hillside Park in El Cerrito. Comment
  SEINET8887765  Sisyrinchium bellum H. E. Hodge 1956-4-7 21 Contra Costa 2 miles north of Orinda 61 Comment
  JEPS112504  Smilacina stellata A. G. Murdock 2004-4-30 246 Contra Costa Vaca Canyon 165 Comment
  IRVC12827  Smilacina stellata var. sessilifolia M. Pilorget 1967-4-17 6 Contra Costa Bear Creek. Comment
  CDA37907  Solanum americanum D. G. Kelch, Mike Perlmutter 2011-9-23 11 .762 Contra Costa Antioch. Dow Wetlands. Comment
  UC2028463  Solanum americanum Barbara Ertter with Mary Bowerman 1996-11-1 15395 Contra Costa North base of Mount Diablo, downstream from Mitchell Canyon parking lot Comment
  CAS-BOT-BC314195  Solanum californicum M. Boone 1981-4-19 020 Contra Costa Mt. Diablo State Park along roadside ca. 3 miles up on N. Gate Rd. Comment
  UC2032802 Image available Solanum furcatum Doran, Andrew Scott 2012-3-20 672 Contra Costa Brooks island loading dock, North side of island. Comment
  UC1050984  Solanum marginatum N. Floy Bracelin 1944-3-12 2626 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC157453  Solanum umbelliferum A. Eastwood 1915-5-30 4541 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC83606  Solanum umbelliferum J. McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  JEPS99576  Solanum umbelliferum Mary Bowerman 1975-5-11 Contra Costa Mount Diablo, Back Creek. Comment
  JEPS99577  Solanum umbelliferum Mary Bowerman 1975-5-11 Contra Costa Mount Diablo, Back Creek. Comment
  NY820591  Solanum umbelliferum A. A. Heller 1908-4-16 8889 Contra Costa Sand hills east of Antioch 23 Comment
  UC176058  Solanum umbelliferum Dr. J. H. Goodspeed 1913-5-3 Contra Costa Moraga Valley Comment
  UC2031456  Solanum umbelliferum Barbara Ertter with David Gowen 2014-4-9 21708 Contra Costa West end of Green Ranch Road southwest of Mount Diablo summit Comment
  UC691749  Solanum umbelliferum Mary L. Bowerman 1930-6-5 258 Contra Costa Mount Diablo, West Road = North Road, 5.8 mi from entrance Mount Diablo 457 Comment
  CAS-BOT-BC156306  Solanum umbelliferum anonymous 1900-3-26 s.n. Contra Costa Oakley. 6 m. E. of Antioch Comment
  UC63939  Solanum umbelliferum Earle Mulliken 1903-5-10 51 Contra Costa Berkeley Hills Comment
  JEPS100170  Soliva sessilis G. Smick 2003-4-8 GAS 123 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CDA29496  Sonchus asper D. G. Kelch, Troy MacGregor 2009-5-1 9 .269 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  SEINET11807909  Sonchus asper W. Knight, Knight, I. 1988-1 6219 Contra Costa Suisun Marsh Comment
  CDA15245  Sonchus oleraceus G. F. Hrusa, D. Crowe 1998-5-8 14376 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Comment
  POM181428  Sonchus oleraceus I. L. Wiggins 1930-4-18 4608 Contra Costa Jersey Island. Comment
  UC2032807 Image available Sonchus oleraceus Doran, Andrew Scott 2012-3-20 677 Contra Costa Brooks island loading dock, North side of island. Comment
  UC1980318  Sparaxis tricolor Barbara Ertter with C. Shafer, C. Davidson et al. 2011-4-23 20707 Contra Costa Mount Diablo State Park, Curry Point Comment
  UCD92971  Spartina foliosa A. A. Beetle 1940-11-1 2636 Contra Costa San Francisco Bay, near Point Richmond. Comment
  RSA181840  Spartina patens Rolf Mall 1964-11-19 s.n. Contra Costa Southampton tidal marsh at head of Suisun Bay between Benicia and Vallejo, Contra Costa County Comment
  UCD93010  Spartina patens Rolf Mall 1964-11-19 s.n. Contra Costa at head of Suisun Bay between Benecia and Vallejo. Comment
  OBI17382  Spergularia macrotheca Robert F. Hoover 1967-4-28 10514 Contra Costa Byron Hot Springs Comment
  UC1618227  Spergularia macrotheca Barbara Ertter 1990-10-14 9661 Contra Costa Point Isabel Regional Shoreline San Francisco Bay, El Cerrito (w shoreline, sw El Cerrito) Comment
  SEINET8728586 Image available Spergularia macrotheca Leo Koch 1940-1 1001 Contra Costa Two miles south of San Rafael ferry dock Comment
  CAS-BOT-BC390239  Spergularia macrotheca var. leucantha Mary L. Bowerman 1933-4-22 1881 Contra Costa Mount Diablo. Shell Ridge east of highway: Heather Farm Comment
  CDA9448  Spergularia macrotheca var. longistyla D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .226 Contra Costa Byron Airport. Comment
  UC1563942  Spergularia macrotheca var. longistyla Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8113 Contra Costa 15 air mi sw of Stockton (w and adjacent to Clifton Court Forebay, se Contra Costa County) Comment
  UC1584823  Spergularia macrotheca var. macrotheca Jerry Powell 1987-7-14 1499 Contra Costa Point Molate Beach; on sandstone bluff Comment
  UCD99259  Spergularia marina J. M. Tucker 1963-4-12 3687 Contra Costa on west side of Holey Road, 3 miles southeast of Byron. Comment
  UC416579  Stachys ajugoides var. rigida Ivar Tidestrom June, 1895 Contra Costa Crockett Comment
  UC691663  Stachys ajugoides var. rigida Mary L. Bowerman 1933-6-3 2228 Contra Costa 2 mi by road from w entrance (= North Gate); Mount Diablo Comment
  POM300999  Stachys bullata Mary L. Bowerman 1933-5-18 2119 Contra Costa Mount Diablo, Blackberry Spring. Comment
  UC2055616  Stachys pycnantha Joseph Andorfer Ewan 1933-10-15 8035 Contra Costa SW slope Mt. Diablo. 1066 Comment
  UC2055617  Stachys pycnantha Joseph Andorfer Ewan 1933-10-15 8035 Contra Costa SW slope Mt. Diablo. 1066 Comment
  RSA721866  Stachys rigida subsp. quercetorum Barbara Ertter, Brad Olson 1994-5-7 12756 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge, edge of San Francisco Bay. Comment
  UC692303  Stellaria nitens Mary L. Bowerman 1932-3-12 1115 Contra Costa Alamo Canyon Mount Diablo (50 ft above stream) 365 Comment
  UC2070629  Stellaria nitens Barbara Ertter with Joanne Kerbavaz, David Gowen, Mike Park and Victoria Seidman 2004-4-20 18362 Contra Costa Eagle Peak Trail on east side of Twin Peaks, north side of Mount Diablo. Comment
  UC2028153  Stellaria pallida Barbara Ertter 1998-4-4 15958 Contra Costa Shell Ridge Open Space northwest of Mount Diablo. Comment
  UC692301  Stellaria pallida Mary L. Bowerman 1935-4-19 2873 Contra Costa about 7 mi from by rd Mount Diablo w entrance (= North Gate) (ridge w of power poles, above the road junction); Mount Diablo 670 Comment
  UC914273  Stephanomeria virgata subsp. pleurocarpa Verne Grant and Alva Grant 1946-9-29 7878 Contra Costa e of Redwood Peak Comment
  JEPS127235  Stipa pulchra Lowell Ahart, Josephine Guardino 2016-4-19 20793 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest to Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  UC2028403  Stipa pulchra Barbara Ertter with Christopher Baysdorfer 1998-5-10 16121 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, quarry area on west side Comment
  UC2029191  Stipa pulchra Barbara Ertter with Brad Olson et al. 2000-6-2 17298 Contra Costa North side Brushy Peak Regional Preserve NE of Livermore Comment
  SEINET10603924  Stipa pulchra Alan A. Beetle 1941-3-28 Beetle 1718 Contra Costa Orinda, in sandy soil of open cut. Comment
  POM300603  Streptanthus glandulosus subsp. glandulosus Mary L. Bowerman 1935-6-8 3123 Contra Costa North Road 2 miles from North Gate, west of chaparral Comment
  UC2028978  Streptanthus glandulosus subsp. glandulosus Barbara Ertter 2000-5-14 17020 Contra Costa Donner Basin on north side of Mount Diablo, switchbacks on Cardinet Oaks Road. Comment
  JEPS81240  Streptanthus hispidus Paul Hutchison 1982-4-25 8007 a Contra Costa s-facing slope below huge rock outcrop at foot of summit trail Mt. Diablo Comment
  SBBG72132  Streptanthus hispidus unknown 1895-1 Contra Costa Mt Diablo Comment
  UC1516892  Streptanthus hispidus W. H. Brewer 1862-5-14 1084 Contra Costa Mt. Diablo summit; Mt. Diablo; Mt. Diablo, Contra Costa Co. Comment
  UC402742  Streptanthus hispidus H. M. Hall 1916-5-31 10139 Contra Costa w side Mt. Diablo 1097 Comment
  UC1950410  Stuckenia filiformis subsp. alpina Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10715 Contra Costa Brown Island N of Pittsburg near confluence of Sacramento & San Joaquin rivers opposite Pittsburg Marina; at W end of island Comment
  UC2028384  Stuckenia pectinata Barbara Ertter 1998-6-20 16254 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Willow Spring Pond south of Ginder Gap Comment
  RSA755542  Stuckenia pectinata Barbara Ertter, Brad Olson 1993-8-8 12202 Contra Costa Bishop Ranch Regional Open Space southwest of San Ramon Comment
  JEPS125637  Stuckenia striata Daniel Slakey with CNPS Volunteers 2015-9-12 223 Contra Costa Junction Suisun Bay and New York Slough, between Browns Island and Pittsburg Marina. 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
  JEPS75474  Stylomecon heterophylla P. F. Yorks 1975-5-15 396 Contra Costa on Hampton Road ca 1.9 km s of Bear Creek Road in Hampton Road Natural Reserve (n of Briones Reservoir); , n of Briones Reservoir 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
  SEINET12102844  Stylomecon heterophylla Ottley 1920-1 475 Contra Costa San Francisco Bay region, Mitchell Canyon, Mt. Diablo 305 Comment
  SEINET4172257  Suaeda nigra J. B. Davy s.n. Contra Costa Mount Diablo, Sivermore Pass Comment
  RSA29681  Symphoricarpos albus var. laevigatus Joseph A. Ewan 1936-5-3 9500 Contra Costa Wildcat Creek. Comment
  UC691750  Symphoricarpos albus var. laevigatus Mary L. Bowerman 1931-5-21 880 Contra Costa Curry-Cave Point trail; Mount Diablo 30 Comment
  UC2028011  Symphyotrichum chilense Barbara Ertter 1998-1-4 15886 Contra Costa South end of Diablo Foothills Regional Park southeast of Walnut Creek, Alamo Trail just outside of park. Comment
  UC892918  Symphyotrichum subulatum Lewis S. Rose 1938-10-28 38312 Contra Costa Byron 3 Comment
  JEPS96865  Tamarix parviflora Dean W. Taylor 1971-4-3 986 Contra Costa along Highway 4 in Contra Coasta County 1 mile east of the junction with Byron Road 3 Comment
  CHSC75158  Tanacetum parthenium Roger Thom 1987-5-24 14 Contra Costa 3354 Johnson Rd., Lafayette. 167 Comment
  JEPS111741  Taraxacum officinale D. G. Kelch 2005-3-24 05 .58 Contra Costa Southern Pt. Pinole 3 Comment
  UC21430  Tauschia hartwegii Edw. L. Greene 1892-6-20 Contra Costa Mt. Diablo Comment
  UC35391  Tetrapteron graciliflorum W. C. Blasdale Mar. 1900 Contra Costa San Pablo Comment
  UC692478  Tetrapteron graciliflorum Mary L. Bowerman 1935-4-26 2907 Contra Costa w Indian Ceremonial Spring; Mount Diablo 1005 Comment
  CAS-BOT-BC88260  Thysanocarpus curvipes Lewis S. Rose 1933-4-17 33096 Contra Costa Antioch. Comment
  JEPS68963  Thysanocarpus curvipes Edward Lee 1935-3-10 1295 Contra Costa e. Antioch (Antioch Sand Dunes); Antioch Sand Dunes Comment
  UC402567  Thysanocarpus curvipes H. P. Chandler 1900-3-23 Contra Costa Fish Ranch Road; Region of Mount Diablo, Fish Ranch Road Comment
  UC691142  Thysanocarpus curvipes Mary L. Bowerman 1933-5-17 2102 Contra Costa branch of Curry Canyon due s of Olafson's barn Mount Diablo (w-facing bank just n of first fork of canyon); , branch of Curry Canyon 289 Comment
  CAS-BOT-BC88254  Thysanocarpus curvipes John Thomas Howell 1934-4-8 11821 Contra Costa Marsh Creek Road southwest of Brentwood. Comment
  RSA0039373  Thysanocarpus curvipes var. curvipes John Thomas Howell 1934-4-8 11821 Contra Costa Marsh Creek Road SW of Brentwood. Comment
  RSA0039448  Thysanocarpus curvipes var. curvipes Howard de Forest 1930-4-6 s.n. Contra Costa Unspecified. Comment
  CAS-BOT-BC67283  Thysanocarpus radians T. S. Brandegee 1883-5-1 s.n. Contra Costa Antioch. Comment
  UC1818959  Torilis arvensis Barbara Ertter, Kristin Ertter 1995-7-11 14480 Contra Costa Pine Creek on West side of Mt. Diablo southwest of Walnut Creek; partial shade of oak forest, road along Pine Cr. in Diablo Foothills Regional Park 152 Comment
  UC1795727  Torilis nodosa Barbara Ertter, Mary Bowerman 1995-6-11 14254 Contra Costa Shell Ridge Recreation Area southeast of Walnut Creek, bank of Indian Creek above Indian Valley Pond, partial sun on Franciscan layer. 76 Comment
  CAS-BOT-BC172936  Toxicodendron diversilobum Alice Eastwood 1915-5-30 4551 Contra Costa Mt. Diablo Comment
  UC1130477  Toxicodendron diversilobum R. C. Wilson 1935-2-26 107 Contra Costa 1 mi. s.w. Nortonville; Mt. Diablo Quad. Comment
  UCD139856  Toxicoscordion fremontii Laurence S. Jones 1934-4-8 s.n. Contra Costa Mount Diablo. 609 Comment
  CDA4742  Tribulus terrestris A. G. Murdock, D. G. Kelch 2004-5-28 305 Contra Costa Carquinez Strait; Luzon. Comment
  UC1776772  Tribulus terrestris T. C. Fuller 1961-9-13 6999 Contra Costa Almond orchard, S of hwy 4, 0.1 mi W of Antioch Bridge Rd., 2 mi W of Oakley. Comment
Read comments
Sep 1 2011
  UC1614107  Trifolium Charles M. Belshaw 1935-6-24 790 Contra Costa ca. 1/2 mi. e. Grizzly Peak (Bald Peak); Bald Peak Comment
  UC555490  Trifolium albopurpureum H. L. Mason 1928-4-29 4433 Contra Costa Sycamore Canyon Mt. Diablo, south slope Comment
  UC575674  Trifolium albopurpureum var. albopurpureum Lewis S. Rose 1935-5-16 35174 Contra Costa Mt. Diablo Comment
  UC16499  Trifolium albopurpureum var. dichotomum Maclean Contra Costa Mt. Diablo Comment
  UC630752  Trifolium albopurpureum var. dichotomum unknown Sep 1907 Contra Costa Antioch Comment
  UC692243  Trifolium bifidum var. decipiens Mary L. Bowerman 1933-5-21 2155 Contra Costa s Curry Canyon (nera Grape Spring); Mount Diablo Comment
  RSA0068487  Trifolium bifidum var. decipiens Katie Gallagher, Nick Jensen 2014-4-26 187 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  CHSC116655  Trifolium campestre Lowell Ahart; Josephine Guardino 2016-4-19 20755 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
  JEPS65796  Trifolium ciliolatum W. L. Jepson 1925-4-26 10689 Contra Costa Black Hills Mt. Diablo Comment
  POM19314  Trifolium ciliolatum Katherine Brandegee s.n. Contra Costa Antioch Comment
  UC400158  Trifolium ciliolatum Ynes Mexia 1929-4-21 2373 Contra Costa Moraga Valley Comment
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Aug 31 2007
  UC692252  Trifolium ciliolatum Mary L. Bowerman 1932-5-6 1422 Contra Costa Mitchell Canyon Mount Diablo Comment
  UC1818906  Trifolium ciliolatum Barbara Ertter, Chris Thayer 1995-4-25 13988 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Devil's Slide area of Sycamore Canyon, roadside thru chaparral zone. 304 Comment
  UC2028184  Trifolium ciliolatum Barbara Ertter 1998-5-3 16066 Contra Costa SE end of Wall Point Road on southwest flank of Mount Diablo. Comment
  UC692461  Trifolium ciliolatum Mary L. Bowerman 1935-5-1 2931 Contra Costa r mi from entrance (w rd); Mount Diablo Comment
  UC146911  Trifolium depauperatum var. amplectens J. Burtt Davy 1897-4-17 Contra Costa Point Isabel Comment
  UC16416  Trifolium depauperatum var. amplectens Edw. L. Greene 1889-3-24 Contra Costa Byron 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
  UC1561224  Trifolium depauperatum var. depauperatum Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8139 Contra Costa ca 15 air mi sw Stockton (w and adjacent to Clifton Court Forebay) 0 Comment
  UC630932  Trifolium depauperatum var. depauperatum P. B. Kennedy 1928-4-19 10035 a Contra Costa Byron Comment
  UC1861833  Trifolium depauperatum var. truncatum Barbara Ertter, Chris Thayer 1995-4-25 13998 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Black Hawk Ridge Rd. on north side Black Hawk Ridge. 548 Comment
  UCD84949  Trifolium depauperatum var. truncatum Chuck Hughes 2010-3-29 221 Contra Costa About 0.4 mile southeast of Vasco Road. 124 Comment
  JEPS127103  Trifolium dubium Lowell Ahart, Josephine Guardino 2016-4-19 20757 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Spring USGS 7.5' Quad. Comment
  UC16534  Trifolium fucatum W. H. Brewer 1862-4-30 1006 Contra Costa Camp 69 Walnut Creek Comment
  UC16536  Trifolium fucatum W. H. Brewer 1862-4-24 990 Contra Costa Camp 68 Martinez Comment
  UC400160  Trifolium fucatum Ynes Mexia 1929-4-21 2371 Contra Costa Moraga Valley Comment
  UC631618  Trifolium fucatum P. B. Kennedy 1928-4-19 10051 Contra Costa Byron Hot Springs Comment
  UC692674  Trifolium fucatum Mary L. Bowerman 1935-5-1 2940 Contra Costa 2.1 mi from North Gate (North Rd, just below rd by a hut); Mount Diablo 182 Comment
  UC924217  Trifolium fucatum H. S. Reed 1940-4-30 356 Contra Costa Marsh Creek northeast slopes of Mount Diablo Comment
  UCD109022  Trifolium fucatum P. B. Kennedy 1929-4-21 10229 Contra Costa Franklin Canyon Road from Concord Soldier's Monument. Comment
  UC16557  Trifolium gracilentum W. H. Brewer 1862-5-19 1116 Contra Costa n Kirker's Pass Comment
  JEPS65901  Trifolium gracilentum var. gracilentum W. L. Jepson May 23 1891-May 24 1891 13689 Contra Costa Mt. Diablo Comment
  UC2028170  Trifolium gracilentum var. gracilentum Barbara Ertter 1998-5-3 16073 Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, near Wall Point. Comment
  CDA23566  Trifolium hirtum D. G. Kelch, D. A. Weinstein 2008-4-2 08 .032-b Contra Costa Carqinez Strait; E Richmond. Hilltop Rd. Chevy s Hill. Comment
  SEINET4178748 Image available Trifolium majus A. A. Heller 1938-4-9 15017 Contra Costa 3 mi. S. W. of Antioch 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
  UC16620  Trifolium microcephalum W. H. Brewer 1862-5-26 1164 Contra Costa near Mount Diablo Comment
  UC1130084  Trifolium microdon C. M. Belshaw 1936-5-7 2043 Contra Costa 2 mi s San Ramon; Mt. Diablo quadrangle 274 Comment
  CDA28014  Trifolium oliganthum D. G. Kelch, A. G. Murdock 2005-3-25 5 .089 Contra Costa Carquinez Strait Region; Pinole Peak. Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and north of Pinole Peak. Comment
  CDA28015  Trifolium oliganthum D. G. Kelch, A. G. Murdock 2005-4-15 5 .15 Contra Costa Carquinez Strait Region; Rodeo Creek. EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump). Comment
  JEPS100109  Trifolium oliganthum G. Smick 2003-3-25 GAS 85 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS4442  Trifolium oliganthum W. L. Jepson 1891-6-9 13698 Contra Costa Fish Ranch 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
  UC555403  Trifolium oliganthum H. L. Mason 1929-3-29 5131 Contra Costa 2 mi above Clayton (Marsh Creek Rd) Comment
  UCD32493  Trifolium olivaceum Beecher Crampton 1950-4-22 534 Contra Costa Contra Costa County, along State Highway 4, in Concord Valley. 30 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
  UC2029138  Trifolium subterraneum Barbara Ertter with Alan Prather 2003-6-7 18203 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, creek alongside west end Stone Corral Trail, south of Highland Ridge Trail junction. Comment
  UC2027720  Trifolium variegatum Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15514 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  CDA28080  Trifolium willdenovii D. G. Kelch, A. G. Murdock 2005-4-24 5 .167 Contra Costa Carquinez Strait Region; Franklin Canyon. Collier Hill. West Carbon. Comment
  OBI12643  Trifolium willdenovii W. L. Jepson 1925-4-26 10691 Contra Costa Mt. Diablo Comment
  UC16747  Trifolium willdenovii H. P. Chandler 1900-3-24 587 Contra Costa Briones HIlls Mt. Diablo region Comment
  UC16750  Trifolium willdenovii W. H. Brewer 1862-4-30 1021 Contra Costa Camp 69 Walnut Creek Comment
  UC692241  Trifolium willdenovii Mary L. Bowerman 1930-6-5 251 Contra Costa 5.8 mi from entrance (w rd = n rd); Mount Diablo Comment
  UC555573  Trifolium willdenovii H. L. Mason 1929-3-29 5132 Contra Costa 2 mi above Clayton (Marsh Creek Rd) Comment
  UCD109510  Trifolium willdenovii A. A. Beetle 1939-4-12 1770 Contra Costa Pinole. Comment
  CAS-BOT-BC451764  Triglochin maritima Walter Knight; Joanne Dean No date on label 3131 Contra Costa 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
  CAS-BOT-BC521014  Trillium chloropetalum var. giganteum J. D. Freeman; R. F. Freeman 1967-5-2 570 Contra Costa Redwood grove 2 mi. SW of Moraga and 1 mi. S of Canyon P.O. Comment
  UC367109  Trillium ovatum J. G. Lemmon Apr 1878 Contra Costa [Mount Diablo] Comment
  UCR139223  Triphysaria eriantha Joseph A. Ewan 1934-4-8 8762 Contra Costa San Francisco Bay Region, Head of Hog Canyon, S slope of Mount Diablo 640 Comment
  JEPS15190  Triphysaria eriantha subsp. eriantha R. C. Wilson 1935-3-26 144 Contra Costa 2 mi n Walnut Creek; Concord Quad. Comment
  JEPS65194  Triphysaria pusilla L. R. Heckard 1971-4-15 2473 Contra Costa along Morgan Territory road 7 mi n of its intersection with Manning road e Mt. Diablo; e of Mt. Diablo 487 Comment
  UCD84950  Triphysaria pusilla Chuck Hughes 2010-3-29 222 Contra Costa About 0.4 mile southeast of Vasco Road. 124 Comment
  HSC3044  Triteleia hyacinthina J. Wendell Howe 1930-5-23 114 Contra Costa Moraga Valley Comment
  JEPS58045  Triteleia laxa Helen Bergfried 1918-5-12 Contra Costa vicinity Berkeley; , Wildcat Creek Comment
  CAS-BOT-BC526332  Triteleia laxa A. A. Heller 1908-4-17 8902 Contra Costa Hills three miles south of Antioch 18 Comment
  SEINET8727865 Image available Tropidocarpum capparideum Robert F. Hoover 1936-1 806 Contra Costa Byron Hot Springs. Comment
  UC673338  Tropidocarpum gracile H. L. Mason 1929-3-31 5148 Contra Costa in pastures Briones Valley Comment
  UC691063  Tropidocarpum gracile Mary L. Bowerman 1933-3-18 1750 Contra Costa floor of canyon above Olafson's; Mount Diablo, Curry Canyon Comment
  UC2070553  Tropidocarpum gracile Barbara Ertter with David Gowen 2006-6-6 18675 Contra Costa Upper San Leandro Reservoir Watershed (EBMUD) south of Moraga, on Rocky Ridge Tail. Comment
  CDA15285  Typha angustifolia G. F. Hrusa, D. Crowe, R. York 1998-7-17 14723 Contra Costa Sacramento Delta; Small colony and a few scattered inds. in bottom of now dry drainage/wash through disturbed grasslands at E end of Dow Chemical property. Site clearly wet earlier in season, but w/out standing water at this time. Comment
  JEPS111911  Typha angustifolia Dean G. Kelch and Andrew G. Murdock 2004-5-28 AGM 281 Contra Costa Refugio Valley. Comment
  UC2028448  Typha angustifolia Barbara Ertter with Chris Thayer 1996-10-25 15386 Contra Costa West side of Mount Diablo, North Gate Road 0.4 road miles below junction, Jill Creek Comment
  UC1241758  Typha domingensis Malcolm A. Nobs 1950-8-20 Contra Costa Nortonville Comment
  CHSC22748  Umbellularia californica Robert A. Schlising 1962-2-21 2078 Contra Costa Berkeley-Oakland Hills of westernmost part of county. Comment
  UC1073383  Umbellularia californica George B. Rossbach 1955-2-20 277 Contra Costa ne of Oakland Comment
  UC691944  Umbellularia californica Mary L. Bowerman 1931-2-8 514 Contra Costa Summit of Mount Diablo Mount Diablo Comment
  JEPS35668  Uropappus lindleyi W. L. Jepson 1931-4-5 15717 Contra Costa Nortonville 457 Comment
  UC2029095  Urospermum picroides Barbara Ertter 1990-6-18 9133 Contra Costa Tilden Regional Park, along Nimitz hiking/bicycle trail near Inspiration Point Comment
  UC521771  Urtica dioica subsp. holosericea Joseph Andorfer Ewan 1933-10-15 8018 Contra Costa sw slope Mount Diablo Mount Diablo Comment
  CHSC116352  Urtica urens D. G. Kelch 2006-2-25 6084 Contra Costa Carquinez Strait: Crockett. Edwards Canyon. 53 Comment
  SBBG5572  Vaccinium ovatum J. M. Tucker 1946-3-14 1376 Contra Costa 150 yards S of summit of Redwood Peak Comment
  UCD118078  Vaccinium ovatum Beecher Crampton 1957-11-20 4650 Contra Costa Border of Alameda county line. East facing slope, between Round and Redwood Regional Parks, Berkeley Hills. Comment
  JEPS121073  Verbena lasiostachys D. G. Kelch 2006-8-6 06 .363 Contra Costa Rodeo Creek, in Rodeo. Comment
  CDA40699  Verbena lasiostachys var. scabrida D. G. Kelch 2005-7-14 5 .461 Contra Costa Carquinez Strait Region; Upper Canada del Cierbo. Comment
  UC176060  Verbena lasiostachys var. scabrida R. P. Brandt 1914-7-9 Contra Costa Berkeley Hills. Comment
  UC691756  Verbena lasiostachys var. scabrida Mary L. Bowerman 1930-9-27 464 Contra Costa West base spring (2 miles by road from North Gate, take trail to west; follow to fence, go through). Comment
  RSA22314  Verbena robusta Joseph A. Ewan 1936-7-5 9726 Contra Costa Near CCC camp, Wildcat Creek. (see field book) Comment
  CDA9278  Verbena scabra D. G. Kelch 2002-7-15 2 .006 Contra Costa CA Delta; Old San Joaquin River channel, E of Brentwood. San Joaquin County border. 0 Comment
  UCD17863  Verbesina encelioides subsp. exauriculata Glen Holstein 2000-6-23 s.n.