Search Results — 2000 specimen records retrieved (1353 records with coordinates)
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Results for search: County=CONTRA COSTA; Source=All;   

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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  RSA0029772  Acacia cyclops Barbara J. Ertter 1990-10-14 9660 Contra Costa Point Isabel Regional Shoreline on San Francisco Bay in SW El Cerrito, on abandoned railroad track at end of Rydin Road. Comment
  UC1050374  Acacia dealbata N. Floy Bracelin 1942-7-4 2174 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC177068  Acacia melanoxylon Walter Knight 1978-7-13 3102 Contra Costa Browns Island Comment
  UC1050368  Acacia verticillata N. Floy Bracelin 1942-7-4 2172 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1050843  Acanthus mollis var. latifolius N. Floy Bracelin 1942-6-14 2133 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  SEINET4172014 Image available Acer macrophyllum Robert A. Norris, John L. Inase 1981-1 4146 Contra Costa Abrigo Valley Trail, NW part of Briones Regional Park (ca. 3 mi. NNW Lafayette) 274 Comment
  UC1745531  Acer macrophyllum Annetta M. Carter, Florence Little 1937-4-4 1228 Contra Costa Las Trampas Canyon about 1/2 mi. E of St. Mary's College. Comment
  UC18109  Acer macrophyllum Harley P. Chandler 1901-4-5 941 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC331616  Acer macrophyllum W. W. Carruth 1901-3-1 s.n. Contra Costa Pine Canon, Mt. Diablo Comment
  CAS-BOT-BC334182  Acer negundo var. californicum Annetta Carter 1937-4-4 1229 Contra Costa Creek bank, Moraga Valley, 2.5 miles north of Moraga 182 Comment
  CAS-BOT-BC334185  Acer negundo var. californicum Alice Eastwood 1914-2-24 3734 Contra Costa Antioch Comment
  UC1540475  Acer negundo var. californicum Annetta Carter 1937-4-4 1229 Contra Costa 2 1/2 mi n Moraga (Moraga Valley); , Creek bank, n of Moraga 182 Comment
  UC588154  Acer negundo var. californicum Annetta Carter 1937-4-4 1229 Contra Costa 2 1/2 mi n Moraga (Creek bank, Moraga Valley); Moraga Valley, n of Moraga 182 Comment
  CDA29142  Achillea millefolium D. G. Kelch 2006-5-7 6 .148 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  JEPS37093  Achillea millefolium W. L. Jepson 1922-5-23 9651 Contra Costa Mt. Diablo Comment
  UC1948954  Achillea millefolium William J. Ferlatte, L. Maynard Moe 1970-4-27 1227 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC2032824  Achillea millefolium Doran, Andrew Scott 2012-3-20 694 Contra Costa North end of Brooks Island along ridge overlooking artificial spit, southwest of caretakers residence. Comment
  RSA603777  Achillea millefolium Joseph A. Ewan 1936-5-3 9508 Contra Costa Wildcat Creek Comment
  CAS-BOT-BC30414  Achyrachaena mollis Dr. A. Kellogg; W. G. W. Harford 1868-1-1 523 Contra Costa Mt. Diablo 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
  UC75304  Achyrachaena mollis C. F. Baker 1903-4-27 2795 Contra Costa Byron Comment
  UCD84946  Achyrachaena mollis Chuck Hughes 2010-3-29 218 Contra Costa About 0.7 mile south of Vasco Road. 238 Comment
  POM54982  Achyrachaena mollis C. F. Baker 1903-4-27 15565 Contra Costa Byron. Comment
  UC1543174  Achyrachaena mollis Donald G. Nelson 1937-4-18 501 Contra Costa towards Tracy on Marsh Creek Road Byron Comment
  UC29283  Achyrachaena mollis J. Burtt Davy May 13 1893-Jan 1 1900 766 Contra Costa Comment
  SBBG40322  Acmispon americanus W. J. Dress 1951-7-3 3470 Contra Costa a few mi S of Moraga 152 Comment
  UCD104120  Acmispon glaber P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo Summit. Comment
  CDA19102  Acroptilon repens R. Fonseca 2000-10-24 PDR 041911 Contra Costa San Francisco Bay Region; Along Hwy 680 Contra Costa Blvd off-ramp on Monument St., Pleasant Hill. 0 Comment
Read comments
May 27 2008
  UCD128498  Acroptilon repens Collector unknown 1928-8-1 1428 Contra Costa Richmond. Comment
  UCSB29426  Actaea rubra Havlik, Neil 1969-7-3 Contra Costa along Grizzly Pk. Trail on the northeast slope of Grizzly Pk., Berkeley Hills 426 Comment
  SEINET4089806  Adenostoma fasciculatum B. C. Templeton 1962-1 sn Contra Costa Mount Diablo. Comment
  RSA453156  Adenostoma fasciculatum var. fasciculatum Bonnie C. Templeton 1962-6-20 s.n. Contra Costa Mount Diablo Comment
  CAS-BOT-BC65622  Adiantum jordanii D. E. Breedlove 1970-4-18 17432 Contra Costa at the north edge of Lafayette above Laurel Drive 243 Comment
  CDA42502  Adiantum jordanii D. G. Kelch 2005-1-21 5 .006 Contra Costa Carquinez Strait; Crockett. Along railroad tracks in West Valona across from decommissioned sewage treatment plant. Comment
  JEPS40093  Aesculus californica W. L. Jepson 1918-6-5 7616 Contra Costa Donner Canyon; Mt. Diablo 228 Comment
  UC2061505  Ageratina adenophora Dean G. Kelch 2016-5-27 16 .132 Contra Costa Miller-Knox Hill. Comment
  SEINET11854999  Agoseris grandiflora W. L. Jepson 1943-1 20846 Contra Costa Moraga Ridge Comment
  JEPS111712  Agoseris grandiflora var. grandiflora D. G. Kelch 2004-5-9 04 .211 Contra Costa Crockett - Eckley Hills north of Bull Valley Staging Area 13 Comment
  JEPS36319  Agoseris grandiflora var. grandiflora W. L. Jepson 1943-6-8 20846 Contra Costa midway of ridge Moraga Ridge Comment
  JEPS36323  Agoseris grandiflora var. grandiflora W. L. Jepson 1922-5-26 9674 Contra Costa grassy hills North Berkeley Hills Comment
  UC29388  Agoseris grandiflora var. grandiflora Jos. Burtt Davy 1901-4-21 7044 Contra Costa Wildcat Canon Wildcat Canon Comment
  UC400161  Agoseris grandiflora var. grandiflora Ynes Mexia 1929-4-21 2370 Contra Costa in open fields of grass Moraga Valley Comment
  UCD84956  Agoseris grandiflora var. grandiflora Chuck Hughes 2010-5-21 228 Contra Costa About 0.8 mile northwest of Vasco Road. 335 Comment
  CAS-BOT-BC22971  Agoseris heterophylla John Thomas Howell 1933-5-14 11260 Contra Costa Hills east of St. Mary's College Comment
  POM52175  Agoseris heterophylla C. F. Baker 1903-4-28 2831 Contra Costa Marsh Creek, Mt. Diablo. Comment
  UC2028118  Agoseris heterophylla Barbara Ertter with Richard K. Brummitt 1998-5-6 16091 Contra Costa Lower Donner Canyon on north base of Mount Diablo, Hetherington Trail upstream from Donner Cabin. Comment
  CAS-BOT-BC13348  Agoseris retrorsa LeRoy Abrams 1921-5-25 8030 Contra Costa Summit Mount Diablo Comment
  UC29385  Agoseris retrorsa F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  POM319553  Agrostis Patricia Wilder 1961-8-27 1066 Contra Costa Walnut Creek, near Calif. Hwy 24. 24 Stanley Court. 42 Comment
  JEPS127233  Agrostis avenacea Lowell Ahart, Josephine Guardino 2016-4-19 20787 Contra Costa 1.4 miles (air) northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Dam, approximately 25 miles (air) southwest to Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  UC1795693  Agrostis avenacea Barbara Ertter, Brad Olson 1994-5-7 12748 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  RSA0029681  Agrostis avenacea Barbara Ertter, Tony Morosco 1998-9-18 16425 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, north quarry area [subsequently developed]. 122 Comment
  CAS-BOT-BC127340  Agrostis exarata R. Bacigalupi 1922-9-24 s.n. Contra Costa Mitchell Canyon, north base of Mount Diablo. 213 Comment
  UC2028498  Agrostis exarata Barbara Ertter 1999-6-12 16711 Contra Costa Black Hawk Ridge road on south side of Mount Diablo, road crossing at confluence of NE and E forks of Sycamore Creek Comment
  CDA962  Agrostis pallens D. G. Kelch 2005-6-14 5 .33 Contra Costa East Bay; San Pablo. North Alvarado Park, south of San Pablo Dam Rd. Comment
  CDA19209  Agrostis viridis Whitlock 2001-4-3 PDR 041591 Contra Costa San Francisco Bay Area; At San Joaquin yacht harbor, Antioch. 0 Comment
  UC2028455  Ailanthus altissima Barbara Ertter with Joanne Kerbavaz and Mary Bowerman 2000-8-20 17508 Contra Costa North side Mount Olympia in Mount Diablo State Park, bulldozed site of former occupation at Zippe Spring Comment
  RSA0027712  Aira caryophyllea Barbara Ertter, Richard K. Brummitt 1998-5-6 16105 Contra Costa Point San Pablo west of Richmond, crest of road to yacht harbor. Comment
  UC2028522  Aira caryophyllea Barbara Ertter 1997-9-14 15810 Contra Costa Southwest side of Mount Diablo, Secret Trail at head of Pine Canyon. Comment
  RSA760665  Aira caryophyllea var. capillaris William J. Ferlatte, L. Maynard Moe 1970-4-27 1231 Contra Costa San Francisco Bay, Red Rock Island. Comment
  CAS-BOT-BC445382  Alisma plantago-aquatica Mary L. Bowerman 1935-9-13 3331 Contra Costa Mount Diablo. Chase Pond Comment
  UC70201  Allenrolfea occidentalis J. Burtt Davy May 1898 Contra Costa Byron Springs Region of Mt. Diablo, Byron Springs Comment
  UC3090  Allium acuminatum Edw. L. Greene 1892-1 Contra Costa Mt. Diablo Comment
  JEPS47591  Allium falcifolium W. L. Jepson 1921-5-22 9212 Contra Costa Mt. Diablo Comment
  UC3071  Allium falcifolium W. H. Brewer 1862-5-7 1060 Contra Costa summit Monte Diablo; summit of Mt. Diablo Comment
  UC692026  Allium falcifolium Mary L. Bowerman 1932-4-16 1347 Contra Costa at summit, Eagle Point Mount Diablo, Eagle Point Comment
  CAS-BOT-BC469114  Allium falcifolium Alice Eastwood 1915-5-30 s.n. Contra Costa Mt. Diablo Comment
  JEPS112495  Allium neapolitanum D. G. Kelch 2005-3-24 05 .55 Contra Costa Southern Pt. Pinole 3 Comment
  JEPS47586  Allium serra W. L. Jepson 1943-5-27 20841 Contra Costa n side of Black Hills Mt. Diablo, Black Hills Comment
  UC635249  Allium serra H. L. Mason 1929-3-29 5135 Contra Costa Marsh Creek Road 2 mi e Claton; Marsh Creek Road Comment
  UC692028  Allium serra Mary L. Bowerman 1933-4-26 1932 Contra Costa Perkins Canyon branch between the main ridge of North Peak and the ridge to its south Mount Diablo, Perkins Canyon 518 Comment
  CAS-BOT-BC475537  Allium serra Volney Rattan 1883-4-1 s.n. Contra Costa Martinez Comment
  CAS-BOT-BC475541  Allium serra Paul F. Covel 1938-5-8 1529 Contra Costa Low south slope Mount Diablo Comment
  JEPS21840  Allium unifolium T. E. Adams 1958-5-16 76 Contra Costa Charles Lee Tilden Regional Park 121 Comment
  SEINET3151680  Allocarya stipitata L. S. Rose 1936-4-24 36155 Contra Costa 8 miles S of Antioch 30 Comment
  JEPS108322  Allophyllum gilioides David Gowen 2005-3-1 169 Contra Costa Mt. Diablo State Park. Just east of Pioneer Horse Camp and south of Green Ranch Road. 853 Comment
  UC691647  Allophyllum gilioides subsp. gilioides Mary L. Bowerman 1935-4-26 2904 Contra Costa w. Indian Ceremonial Spring (Mt. Diablo); Mt. Diablo 1021 Comment
  JEPS69375  Allophyllum gilioides subsp. violaceum Mary L. Bowerman 1935-4-26 2919 Contra Costa summit Meridian Peak; Mt. Diablo, Meridian Peak 1158 Comment
  CAS-BOT-BC170928  Alnus rhombifolia W. C. Blasdale 1896-2-29 s.n. Contra Costa Clayton Comment
  CAS-BOT-BC170934  Alnus rhombifolia Alice Eastwood 1921-4-18 s.n 10294 Contra Costa Antioch Comment
  RSA21881  Alnus rhombifolia L. S. Rose 1938-10-28 38307 Contra Costa Marsh Creek, 6 miles E of Clayton. 152 Comment
  UC1093922  Alnus rhombifolia Herbert L. Mason 1924-11-23 1159 Contra Costa Las Trampas Ridge; via Cashion Comment
  UC13501  Alnus rhombifolia W. C. Blasdale 1891-3-7 Contra Costa San Pablo Comment
  SJSU7899  Alopecurus myosuroides H. G. Reeves 1972-5-8 Contra Costa W shore of San Pablo Reservoir near Bench Mark 24, 7 mi S of Dam Comment
  CDA31390  Alopecurus saccatus P. B. Kennedy 1916-5-11 Contra Costa Richmond, Grand View Terrace. 0 Comment
  CDA20558  Alternanthera philoxeroides unknown 2005-6-23 s.n. Contra Costa San Francisco Bay Area; Garden weed in Danville, CA. 0 Comment
  UC691946  Amaranthus albus Mary L. Bowerman 1932-8-27 1515 Contra Costa s of Turtle Rock; Mt. Diablo Comment
  POM300587  Amaranthus albus Mary L. Bowerman 1932-8-27 1515 Contra Costa Pond south of Turtle Rock Comment
  CDA9491  Amaranthus blitoides D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .215 Contra Costa Byron Airport. Comment
  UC2028560  Amaryllis belladonna Barbara Ertter with Mary Barkworth 2000-9-24 17528 Contra Costa North side Mount Diablo, near former well at Donner Cabin site on Donner Creek. Comment
  IRVC19819  Ambrosia psilostachya var. californica J. Powell 1977-12-11 1345 Contra Costa 1mile E of Antioch. Comment
  JEPS45147  Amelanchier utahensis W. L. Jepson Oct 1909 3499 Contra Costa n end Moraga Ridge; Oakland Hills Comment
  UCD33151  Ampelodesmos mauritanicus Beecher Crampton 1966-10-18 7816 Contra Costa Contra Costa County, Kensington, Berkeley Hills Blake Garden, UC Berkeley Dept. of landscape architecture. Comment
  CAS-BOT-BC222221  Amsinckia John Thomas Howell 1934-4-8 11814 Contra Costa 7 miles from Clayton on road to Livermore Comment
  CAS-BOT-BC222226  Amsinckia Alice Eastwood; John Thomas Howell 1936-4-19 2131 Contra Costa Nortonville Comment
  CAS-BOT-BC222230  Amsinckia John Thomas Howell 1933-3-29 10910 Contra Costa Nortonville hills Comment
  CAS-BOT-BC222233  Amsinckia John Thomas Howell 1933-3-29 10908 Contra Costa Nortonville hills Comment
  CHSC23356  Amsinckia intermedia Willis Ball 1975-2-23 448 Contra Costa Contra Loma Regional Park. In area #2. On s side of hill ca. 50 yds. ne of single restroom at sw end of reservoir, approximately 1/4 way up large hill. 38 Comment
  JEPS100075  Amsinckia intermedia G. Smick 2003-3-4 GAS 59 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS111839  Amsinckia intermedia D. G. Kelch 2004-3-5 04 .11 Contra Costa Sky Ranch Dutra Fire Road. Franklin Canyon 90 Comment
  JEPS25352  Amsinckia intermedia Rimo Bacigalupi with Paul C. Hutchison and John Weiler 1959-3-19 6962 Contra Costa 2.4 mi w of Byron (and 0.3 mi e of junction with Vasco Road, along Camino Diablo); Camino Diablo 60 Comment
  JEPS73693  Amsinckia intermedia L. R. Heckard with Wm. Hirano and Ted Niehaus 1968-3-5 1762 Contra Costa 3 mi se Byron (at junction of Holey Road, along Byron-Bethany Road) 7 Comment
  UC615270  Amsinckia intermedia Beryl O. Schreiber 1932-3-27 130 Contra Costa near Mountain House Comment
  UC725373  Amsinckia intermedia A. A. Heller 1938-4-9 15016 Contra Costa 3 mi sw of Antioch Comment
  UC881400  Amsinckia intermedia Lewis S. Rose 1941-3-13 41032 Contra Costa 3 mi s Byron 15 Comment
  RSA31867  Amsinckia intermedia A. A. Heller 1938-4-9 15014 Contra Costa In an orchard near Walnut Creek. Comment
  SEINET12519155  Amsinckia intermedia Richard R. Halse 1988-1 3541 Contra Costa Along State Hwy. 4 near its junction with Balfour Road on the south edge of Brentwood 5 Comment
  UCD119619  Amsinckia intermedia John Thomas Howell 1933-5-14 11224 Contra Costa St. Mary's College. Comment
  CAS-BOT-BC222462  Amsinckia lunaris Francia Chisaki; Peter Kamb 1952-5-4 2275 Contra Costa Bear Creek Road, 1.5 miles east of Orinda-Richmond road (leaving this road ca. 1 mile north of Orinda) Comment
  CAS-BOT-BC222465  Amsinckia lunaris Robert F. Hoover 1939-4-24 4058 Contra Costa Lower end of San Pablo Reservoir Comment
  JEPS85241  Amsinckia lunaris Roy E. Buck 1986-4-14 539 Contra Costa ca. 7 air km. n.-n.w. Orinda (n. of Briones Res., w. side Hampton Rd., cyn draining n. to Pinole Cr., ca. 0.25 km. n. of div. separat. Pinole Cr. & Bear Cr. watersheds) 228 Comment
  UC762089  Amsinckia lunaris Robert F. Hoover 1936-4-16 975 Contra Costa East slope of Bald Park. Comment
  UC2027923  Amsinckia lycopsoides Barbara Ertter, Dan Norris 2001-4-15 17616 Contra Costa Diablo Foothills Regional Park, Stonegate Trail near Foothills Trail junction. Comment
  UCSB39447  Amsinckia tessellata Fritzke, Sue 1980-3-1 Contra Costa Hills behind Walnut Heights Elementary School, off of Walnut Blvd., 1 mile east of intersection with Walker Rd. 121 Comment
  CDA5474  Anagallis arvensis A. G. Murdock, D. G. Kelch 2004-3-19 215 Contra Costa Carquinez Strait Region; Luzon. Sycamore Avenue just east of Rodeo/Hercules where train crosses Highway 4 (Luzon). Comment
  UC691833  Anagallis arvensis Mary L. Bowerman 1930-6-28 389 Contra Costa Mt. Diablo, Lower Silver Spring Comment
  UC691815  Ancistrocarphus filagineus Mary L. Bowerman 1935-4-17 2834 Contra Costa 2 mi from entrance on West rd (= North Rd), (hillside above serpentine outcrop) Mount Diablo 259 Comment
  CAS-BOT-BC400255  Anemopsis californica A. D. E. Elmer 1903-6-1 4870 Contra Costa Walnut Creek 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
  JEPS107105  Anthriscus caucalis Barbara Ertter, Lisa Schultheis 1995-4-27 14015 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; north-facing open brushy slope with scattered oaks along extension of Valley View road. 182 Comment
  UC1050713  Antirrhinum majus subsp. tortuosum N. Floy Bracelin 1941-4-13 1137 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC27067  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum Adolph Daniel Edward Elmer 1903-6-1 4809 Contra Costa Mt. Diablo Comment
  UC691119  Aphanes occidentalis Mary L. Bowerman 1931-3-29 620 Contra Costa East Cave Point Ridge; Mount Diablo Comment
  JEPS111632  Apocynum cannabinum D. G. Kelch 2004-7-9 04 .306 Contra Costa Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite 60 Comment
  UC692207  Aquilegia eximia Mary L. Bowerman 1933-6-2 2331 Contra Costa Donner Canyon Mount Diablo Comment
  JEPS60396  Aquilegia formosa V. E. Ferguson Contra Costa Donner Canyon Mt. Diablo Comment
  UC692183  Aquilegia formosa Mary L. Bowerman 1938-6-14 3686 Contra Costa Juniper Camp Mount Diablo Comment
  UC8999  Aquilegia formosa W. H. Brewer 1862-5-23 1156 Contra Costa se area Mount Diablo Comment
Read comments
Nov 28 2009
  CAS-BOT-BC17272  Arabis blepharophylla Paul F. Covel 1938-5-8 1514 Contra Costa Summit Mount Diablo. Comment
  JEPS53024  Arabis glabra W. L. Jepson 1891-6-9 13388 Contra Costa Fish Ranch Road Berkeley Hills Comment
  UC691128  Arabis glabra Mary L. Bowerman 1932-5-6 1431 Contra Costa Mitchell Canyon Mount Diablo 251 Comment
  SBBG50848  Arbutus menziesii A. Hartman 1960-4-19 9 D Contra Costa North Gate Rd, Mt Diablo St Park 609 Comment
  CAS-BOT-BC407800  Arceuthobium campylopodum L. R. Abrams 1910-10-8 4356 Contra Costa Mt. Diablo Comment
  JEPS40121  Arceuthobium campylopodum Miss Ferguson 1920-1-1 Contra Costa Donner Canyon Mt. Diablo Comment
  UC1078914  Arceuthobium campylopodum Job Kuijt 1958-1-12 1444 Contra Costa Little Rock City Mount Diablo Comment
  UC692041  Arceuthobium campylopodum Mary L. Bowerman 1930-6-22 374 Contra Costa above main canyon (Mitchell Canyon Trail); Mount Diablo Comment
  UC692044  Arceuthobium campylopodum Mary L. Bowerman 1931-10-31 1064 Contra Costa south Rd near junction Mount Diablo Comment
  UC2028013  Arceuthobium campylopodum Barbara Ertter 1997-11-1 15877 Contra Costa South side Mount Diablo, Knobcone Point Road east of junction with Black Hawk Ridge Road. Comment
  UC1332419  Arctostaphylos Edward Lee 1935-12-28 1704 Contra Costa sw-facing gulch on w end of ridge Concord Quadrangle, Las Trampas Ridge 426 Comment
  UCR58375  Arctostaphylos andersonii var. auriculata Walter Knight, I. Knight 1980-6-14 3744 Contra Costa Original from Mt. Diablo State Park (Now in Tilden Regional Park Botanic Garden) Comment
  SEINET11989037  Arctostaphylos andersonii var. auriculata Unknown 1968-1 1308 Contra Costa ca 300 yds above road at Somersville Comment
  RSA29193  Arctostaphylos andersonii var. pallida Joseph A. Ewan 1934-1-7 8162 Contra Costa Head of San Leandro Creek above Oakland. Comment
  CAS-BOT-BC24107  Arctostaphylos auriculata L. R. Abrams 1900-10-8 4348 Contra Costa Mt. Diablo 609 Comment
  CAS-BOT-BC24117  Arctostaphylos auriculata C. F. Baker 1903-5-31 3161 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC24121  Arctostaphylos auriculata Lewis S. Rose 1934-2-28 34039 Contra Costa S. slope Mt. Diablo, 8 mi. NE Danville Comment
  JEPS19888  Arctostaphylos auriculata W. L. Jepson 1922-7-14 9737 Contra Costa head of Sycamore Creek Mt. Diablo Comment
  JEPS38914  Arctostaphylos auriculata Mary L. Bowerman 1935-3-24 2751 Contra Costa w face Lime Ridge (between two cuts of the Cowell Cement Company); Mount Diablo Comment
  JEPS96259  Arctostaphylos auriculata Dean Kelch 1995-3-14 97 .15 Contra Costa Rock City Mt. Diablo; e. contra Costa Co., , Rock City 457 Comment
  POM203167  Arctostaphylos auriculata L. S. Rose 1934-2-28 34039 Contra Costa 8 miles NE Danville, S slope of Mt. Diablo. Comment
  RSA15419  Arctostaphylos auriculata Alice Eastwood, John Thomas Howell 1936-4-19 2130 Contra Costa Nortonville. Comment
  RSA622488  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27603 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments
Jan 30 2013
  UC1309702  Arctostaphylos auriculata H. A. Jensen 1938-10-27 450 Contra Costa head of Curry Canyon Mt. Diablo 518 Comment
  UC549566  Arctostaphylos auriculata J. E. Adams 1934-3-19 673 Contra Costa Mt. Diablo Comment
  UC549568  Arctostaphylos auriculata J. E. Adams 1934-3-19 672 Contra Costa Mt. Diablo Comment
  UC75346  Arctostaphylos auriculata Alice Eastwood 1903-2-22 3161 Contra Costa Mt. Diablo Comment
Read comments
Aug 25 2011
  UCD50262  Arctostaphylos auriculata Roman Gankin 1968-11-14 1311 Contra Costa Ca. 300 yds. above road at Somersville. Comment
  CHSC83112  Arctostaphylos canescens subsp. sonomensis Walter Knight 1968-1-15 Contra Costa Tilden Park Bot. Gard. Comment
  CAS-BOT-BC23557  Arctostaphylos crustacea J. E. Adams 1934-3-9 623 Contra Costa Moraga Ridge Comment
  CAS-BOT-BC23593  Arctostaphylos crustacea Walter Knight 1980-3-6 3719 Contra Costa Redwood Regional Park, East Ridge Trail Comment
  CAS-BOT-BC23600  Arctostaphylos crustacea Steve Abbors 1980-3-24 s.n. Contra Costa Chamise Trail. Las Trampas Ridge, Las Trampas Regional Wilderness. Comment
  OBI14749  Arctostaphylos densiflora Robert F. Hoover 1962-3-23 8540 Contra Costa cultivated in Tilden Park Botanic Garden. Propagated from near Vine HIll School, Sonoma co. Comment
  UC1120123  Arctostaphylos glandulosa subsp. glandulosa N. French 1933-3-13 34 Contra Costa above dam; San Francisco Quadrangle, San Pablo Comment
  UC1120188  Arctostaphylos glandulosa subsp. glandulosa R. C. Wilson 1935-3-15 8157 Contra Costa 1 1/2 mi w Cave Pt.; Mt. Diablo Quadrangle Comment
  RSA721734  Arctostaphylos glauca Barbara Ertter, Holy Forbes 1996-2-11 14548 Contra Costa North side Mount Diablo; Murchio Gap on Median Ridge Road. 732 Comment
  UCD51123  Arctostaphylos glauca R. W. Lundh 1932-8-28 152 Contra Costa Eagle Point. 725 Comment
  RSA632813  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27589 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  RSA632816  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27580 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  RSA0002606  Arctostaphylos laevigata Alice Eastwood 1922-3-17 11082 Contra Costa Mt. Diablo Comment
  UCSB22281  Arctostaphylos manzanita McMinn, H. 1936-4-11 Contra Costa Mt. Diablo; head of Sycamore Canyon Comment
  CAS-BOT-BC38924  Arctostaphylos manzanita subsp. laevigata Alice Eastwood 1922-5-17 11085 Contra Costa Mt. Diablo Comment
  JEPS112741  Arctostaphylos manzanita subsp. laevigata Dean W. Taylor 2001-3-21 17613 Contra Costa Mount Diablo; Mount Diablo State Park, near Balancing Rock (ridge forming southerly watershed boundary Curry Creek Canyon) 487 Comment
  JEPS19874  Arctostaphylos manzanita subsp. laevigata W. L. Jepson 1922-7-14 9736 Contra Costa Mount Diablo, Head of Sycamore Creek Head of Sycamore Creek; Mount Diablo, Head of Sycamore Creek Comment
  RSA122399  Arctostaphylos manzanita subsp. laevigata H. A. Jensen 1938-10-27 451 Contra Costa Head of Curry Canyon 518 Comment
  RSA164649  Arctostaphylos manzanita subsp. laevigata Percy C. Everett 1963-11-19 24499 Contra Costa Mt Diablo. 457 Comment
  UC549752  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-3-19 686 Contra Costa Mt. Diablo Comment
  UC692222  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1930-8-31 443 Contra Costa Dan Cook (Rock City) Canyon Mount Diablo Comment
  UC692515  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1931-9-20 1043 Contra Costa little above road Mount Diablo, Fossil (Rock City) Ridge Comment
  UC2028017  Arctostaphylos manzanita subsp. laevigata Barbara Ertter 1997-9-14 15818 Contra Costa Southwest side of Mount Diablo, Wall Point Road on open sandstone ridge northwest of Wall Point. Comment
  CAS-BOT-BC24351  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1930-6-18 349 Contra Costa Mt. Diablo, Rock City canyon. Comment
  CAS-BOT-BC24381  Arctostaphylos manzanita subsp. manzanita Walter Knight; Irja Knight 1980-3-16 3713 Contra Costa Opposite 5996 Skyline Drive, El Sobrante. Comment
  CAS-BOT-BC24390  Arctostaphylos manzanita subsp. manzanita Walter Knight; Irja Knight 1980-3-16 3713 Contra Costa Opposite 5996 Skyline Drive, El Sobrante. Comment
  SBBG114892  Arctostaphylos pallida C. Bornstein 1999-3-20 Contra Costa Sobrante Ridge Regional Preserve 243 Comment
  UC1142931  Arctostaphylos pallida Beryl O. Schreiber 1938-9-18 2548 Contra Costa 0.5 mi ssw Round Top 335 Comment
  JEPS19849  Arctostaphylos tomentosa subsp. crustacea W. L. Jepson 1916-8-20 6847 Contra Costa Moraga Ridge Oakland Hills Comment
  UC1120126  Arctostaphylos tomentosa subsp. crustacea R. C. Wilson 1935-3-27 149 Contra Costa 1 mi s Cave Pt.; Mount Diablo Quadrangle Comment
  UC549412  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-19 677 Contra Costa Rock City Mount Diablo Comment
  UC549464  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 629 Contra Costa Moraga Ridge 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
  CAS-BOT-BC400403  Aristolochia californica D. E. Breedlove 1970-4-18 17444 Contra Costa At the north edge of Lafayette above Laurel Drive 243 Comment
  SJSU6159  Aristolochia californica C. O. Dudley 1966-5-1 106 Contra Costa Reliez Valley, Briones Hills N of Lafayette 152 Comment
  OBI20502  Aristolochia californica Neil Havlik 1968-3-26 95 Contra Costa Botanical Garden, Charles Lee Tilden Regional Park, E of Berkeley Comment
  UC1326234  Aristolochia californica Theodore F. Niehaus 1965-1-17 311 Contra Costa along Hampton Rd. 1 mi. s. from junction with Garcia Ranch Rd. Comment
  JEPS95239  Arnica discoidea Stephen W. Edwards 1991-1 Contra Costa Huckleberry Trail; Huckleberry Botanic Regional Preserves Comment
  UC29618  Arnica discoidea F. P. McLean 1875-3-1 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC82594  Arnica lanceolata subsp. prima H. M. Hall; H. P. Chandler 1900-7-1 649 Contra Costa South Fork of San Joaquin River Comment
  CDA37337  Artemisia biennis D. G. Kelch 2010-10-31 10 .442 Contra Costa Valley north of Alhambra Valley Rd., south of Pinole Peak, east of Hercules. Comment
  RSA755498  Artemisia biennis Barbara Ertter, Jim Dunne, David Gowen, Lech Naumovich 2009-12-3 19800 Contra Costa Mudflats at upper (south) end of San Pablo Dam Reservoir northwest or Orinda 90 Comment
  CAS-BOT-BC84954  Artemisia californica Mary L. Bowerman 1931-11-21 1069 Contra Costa Mount Diablo, donner Canyon, east flank. Comment
  JEPS75553  Artemisia douglasiana P. F. Yorks 1975-7-12 472 B Contra Costa north of Briones Reservoir (on Hampton Road 1.7 km s. of Bear Creek Road); Hampton Road Natural Reserve 180 Comment
  UC2028460  Artemisia douglasiana Barbara Ertter 1997-9-7 15794 Contra Costa North side Mount Diablo, Donner Creek crossing at south end of Hetherington Trail Comment
  UC691355  Artemisia douglasiana Mary L. Bowerman 1930-10-4 484 Contra Costa Pioneer Camp Ground Mount Diablo Comment
  CAS-BOT-BC90297  Artemisia douglasiana Vincent Jones 1920-8-20 s.n. Contra Costa Vallejo 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
  UCD137837  Asarum caudatum Richard W. Neil 1941-3-24 4 Contra Costa Redwood Park, Redwood Canyon. 182 Comment
  UC141712  Asclepias californica C. F. Baker 1903-4-28 2871 Contra Costa Marsh Creek Mt. Diablo Comment
  UC219339  Asclepias californica H. M. Hall 1922-5-7 11804 Contra Costa Marsh Creek; Mt. Diablo Comment
  CHSC75046  Asclepias fascicularis Roger Thom 1987-5-18 10 Contra Costa Calif. State University Hayward's Contra Costa Campus. 3100 Oak Park Blvd. Pleasant Hill. 30 Comment
  UC2013059  Asclepias fascicularis Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14916 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  RSA417743  Aster radulinus M. B. Dunkle 1931-7-18 2532 Contra Costa Strawberry Canyon, Berkeley 152 Comment
  RSA666355  Aster radulinus Barbara Ertter, Dianna Lake 1991-8-18 10675 Contra Costa Carquinez Strait Regional Shoreline east of Crockett, northeast of Bull Valley staging area Comment
  CAS-BOT-BC180527  Astragalus asymmetricus Ira L. Wiggins 1930-4-17 4562 Contra Costa Near Montain House, Altamont Pass. Comment
  UC13350  Astragalus didymocarpus J. Burtt Davy 1895-4-7 934 Contra Costa Antioch Comment
  JEPS112423  Astragalus gambelianus Dean G. Kelch and Andrew G. Murdock 2005-4-2 05 .107 Contra Costa Alhambra Valley; county: Contra Costa; EBMUD land. North of intersection of Alhambra Valley Road and Castro Ranch Road. Comment
  UC692650  Astragalus gambelianus Mary L. Bowerman 1931-4-4 643 Contra Costa Mount Diablo Mount Diablo (North Road) Comment
  UC13431  Astragalus gambelianus W. L. Jepson May, 1891 Contra Costa Comment
  UC1949066  Astragalus gambelianus Barbara Ertter 2005-5-8 18566 Contra Costa Mount Diablo State Park, Burma Road below Moses Rock Spring on Long Ridge Comment
Read comments
Feb 13 2016
  UC1713776  Athysanus pusillus T. S. Brandegee April, 1871 Contra Costa Antioch Comment
  UC517970  Athysanus pusillus John Thomas Howell 1931-3-10 5754 Contra Costa 7 mi from Clayton (on Livermore Road, e side of Mount Diablo); Mount Diablo Comment
  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
  UCD148252  Atriplex coronata Robert E. Preston 2013-6-21 2914 Contra Costa 3.5 mi SW of Byron. 62 Comment
  LA204675  Atriplex coronata John Thomas Howell; 1930-9-28 5503 Contra Costa 5.4 miles from Byron on Marsh Creek Road Comment
  UC221400  Atriplex coronata H. M. Hall 1923-10-10 11911 Contra Costa on Stockton Road e Byron; e of Byron Comment
  UCD77372  Atriplex coronata Robert E. Preston 2000-9-6 1436 Contra Costa Byron Tract, at the confluence of Indian Slough and Old River, on landward side of levee. UTM 4196850N 626265E 3 Comment
  UCD77403  Atriplex depressa Robert E. Preston 2000-8-6 1431 Contra Costa Ca. 2.1 mi ssw of Byron Hot Springs, in field along s side of Armstrong Rd, T1S R3E se 1/4 Section 28 30 Comment
  CDA37400  Atriplex prostrata D. G. Kelch, Mike Perlmutter 2011-9-23 11 .763 Contra Costa Antioch. Dow Wetlands. Comment
  UCD158698  Atriplex prostrata James A. Neilson Jr. 1972-11-2 3620 Contra Costa Walnut Creek drainage. Elevation estimated in Google Earth by label maker. 1 Comment
  JEPS111801  Atriplex semibaccata D. G. Kelch 2004-7-9 04 .300 Contra Costa Port Costa - Shore Past Costa Shore 2 Comment
  NY324276  Atriplex spicata W. H. Brewer 1862-5-31 1190 Contra Costa Joaquin Valley Comment
  UC1607604  Atriplex triangularis Barbara Ertter with Elizabeth Neese 1988-10-15 7979 Contra Costa in salicornia marsh w. of I-580 in El Cerrito (w side along Rydin Road n of Central Avenue; edge of roadbank and marsh) Comment
  SEINET11263175  Atriplex triangularis Barbara Ertter, Chris Thayer 1996-10-25 15361 Contra Costa NW flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park, intermittent surface water left in shaded stream in valley oak woodland and grassland.; 0 91 Comment
  CAS-BOT-BC146024  Avena barbata John Thomas Howell 1983-5-12 54745 Contra Costa Mount Diablo. Juniper Camp. 914 Comment
  CDA19825  Avena fatua P. Akers 2002-5-11 s.n.- 2 a Contra Costa Northern California; Mt Diablo Rd. 205 Comment
  CHSC21645  Avena fatua Willis Ball 1975-3-2 469 Contra Costa Contral Loma Regional Park. In area #2. On s side of hill ca. 55 myds. ne of single restroom at sw end of lake. 39 Comment
  UC53686  Avena fatua J. Burtt Davy 1900-5-24 6537 Contra Costa Pt. Richmond Comment
  UC606745  Avena fatua Edward Lee 1936-4-19 1972 Contra Costa Red Rock San Francisco Bay (foot of bluff on e shore of island) Comment
  UC697125  Avena fatua Mary L. Bowerman 1931-5-7 809 Contra Costa North Peak Mount Diablo Comment
  UCD56252  Avena fatua P. Akers 2002-5-11 s.n. Contra Costa Mt. Diablo Summit Trail. At water tank picnic area. 873 Comment
  UC1523840  Avena sterilis Mark Blumler 1986-6-15 Contra Costa Cerrito Creek Richmond (n bank) Comment
  UC697205  Baccharis glutinosa Mary L. Bowerman 1938-9-17 3719 Contra Costa Willow Spring Comment
  UCD159504  Baccharis pilularis D. S. Park 2010-9-11 252 Contra Costa Waterfront Rd. Growing along roadside. Disturbed. 5 Comment
  CAS-BOT-BC98191  Baccharis salicifolia Ira L. Wiggins 1930-4-18 4600 Contra Costa Near ferr, 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-BC106561  Balsamorhiza deltoidea Rimo Bacigalupi; G. T. Robbins 1955-5-4 4978 Contra Costa On west facing slope south of and above Nortonville, along road to Irish Canyon 426 Comment
  CDA34211  Bellardia trixago D. G. Kelch 2011-5-28 11 .541 Contra Costa Carquinez Strait Region.; W of Martinez. N of end of Hillside Pl. Comment
  CDA39043  Bellardia trixago D. G. Kelch 2011-6-5 11 .571 Contra Costa Carquinez Strait; South of Crockett, south of Cummings Skyway. Comment
  JEPS111807  Beta vulgaris D. G. Kelch 2003-8-13 03 .97 Contra Costa Martinez Marsh 1 Comment
  UC912220  Bidens frondosa Herbert L. Mason 1929-9-21 5446 Contra Costa 2.6 mi ne of Byron (Borden Highway); Borden Highway Comment
  CAS-BOT-BC102083  Bidens frondosa Walter Knight; Irja Knight; John Thomas Howell; E. McClintock; et. al 1978-9-5 3243 Contra Costa Browns Island, Yucca Landin Comment
  NY31019  Blennosperma californicum R. F. Hoover 1938-2-21 2750 Contra Costa Byron Hot Springs Comment
  JEPS68966  Blennosperma nanum Edward Lee 1935-3-10 1299 Contra Costa Nortonville South watershed of Kirker Creek Comment
  CAS-BOT-BC100697  Blennosperma nanum var. nanum Peter H. Raven; H. L. Mason; R. Ornduff; et al. 1957-4-4 10588 Contra Costa Vernal flats 3.0 miles s. of Byron Comment
  CAS-BOT-BC100703  Blennosperma nanum var. nanum M. K. C. 1886-5-1 s.n. Contra Costa Antioch Comment
  UC34577  Blennosperma nanum var. nanum H. M. Hall 1902-3-22 1695 Contra Costa Martinez San Francisco Bay Region Comment
  UC565479  Blennosperma nanum var. nanum H. L. Mason 1929-3-15 5045 Contra Costa just s of Nortonville Comment
  UC762545  Blennosperma nanum var. nanum R. F. Hoover 1938-2-27 2784 Contra Costa Danville Comment
  CAS-BOT-BC100700  Blennosperma nanum var. nanum Lewis S. Rose 1933-3-10 33008 Contra Costa March Creek Comment
  CAS-BOT-BC127914  Blepharizonia laxa R. F. Hoover 1937-9-2 2710 Contra Costa 1 mi. s. of Pittsburg Comment
  CAS-BOT-BC100338  Blepharizonia plumosa R. F. Hoover 1937-9-2 2708 Contra Costa Walnut Creek Comment
  JEPS18824  Blepharizonia plumosa R. F. Hoover 1935-9-7 715 Contra Costa Walnut Creek Comment
  UC596244  Blepharizonia plumosa R. F. Hoover 1937-8-31 2704 Contra Costa Pittsburg Comment
  CAS-BOT-BC478856  Bloomeria crocea var. aurea W. H. Brewer 1862-6-29 1291 Contra Costa Pacheco Pass near Camp 77 Comment
  SEINET183705  Boechera breweri L. Constance, J. L. Morrison 1938-4-5 2192 Contra Costa Near Mitchell Canyon on west slope of Mount Diablo. 610 Comment
  CAS-BOT-BC15956  Boechera breweri subsp. breweri Alice Eastwood 1915-5-30 4513 Contra Costa Mount Diablo. Comment
  UC118056  Boechera breweri subsp. breweri G. W. Dunn 1892-3-12 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC15967  Boechera breweri subsp. breweri Mary L. Bowerman 1932-3-27 1142 Contra Costa Mount Diablo. On Mitchell Rock. Comment
  POM300655  Boisduvalia glabella Mary L. Bowerman 1935-6-28 3173 Contra Costa Mount Diablo: Vernal pool near meridian (300 yards east of meridian fence line) south of summit 488 Comment
  JEPS78632  Bolboschoenus maritimus Walter Knight and Harry Reeves 1979-8-25 3408 Contra Costa near Antioch (Contra Loma Regional Park below dam near golf course); near Antioch, Contra Loma Regional Park 22 Comment
  UCD140023  Bolboschoenus maritimus subsp. paludosus G. F. Hrusa; D. Crowe 1998-5-8 14366 Contra Costa Sacramento-San Joaquin River Delta. On Dow Chemical property at Pittsburg. 10 Comment
  UC1950424  Bolboschoenus maritimus subsp. paludosus Barbara Ertter 1990-9-10 9640 Contra Costa Briones Regional Park, Briones Hills S of Martinez, at margin of main Sindicich Lagoon Comment
  CAS-BOT-BC95322  Bowlesia incana James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC95329  Bowlesia incana Mary L. Bowerman 1935-6-1 3098 Contra Costa Pine-Mitchell divide, Mount Diablo 975 Comment
  UC566855  Bowlesia incana H. L. Mason 1928-4-1 4272 Contra Costa Hills n of Mount Diablo (back of Pittsburg) Comment
  UC692361  Bowlesia incana Mary L. Bowerman 1935-6-1 3098 Contra Costa Mount Diablo, Pine-Mitchell Divide Mount Diablo; , Pine-Mitchell Divide 975 Comment
  UC2028400  Brachypodium distachyon Barbara Ertter with Dan Norris 1998-6-18 16222 Contra Costa Devil's Slide trail from Knobcone Point Road, south side of Mount Diablo Comment
  CDA20615  Brassica juncea G. F. Hrusa 2006-1-18 s.n. Contra Costa San Francisco Bay Area; Residence in San Pablo at Stanton at San Pablo Ave. 0 Comment
  UC691083  Brassica nigra Mary L. Bowerman 1938-5-25 3633 Contra Costa Mount Diablo. North Road 2 miles from North Gate. 182 Comment
  JEPS78174  Brassica rapa Gary W. Zamzow 1973-1-26 125 Contra Costa 300 m. s. of Central Ave. overpass & 100 m. w. of Hoffman Blvd. on landfill at edge of bay Richmond Comment
  UC691792  Brickellia californica Mary L. Bowerman 1931-9-27 1051 Contra Costa road to Quicksilver Mind (Mount Diablo); Mount Diablo Comment
  UC2070488  Brickellia californica Barbara Ertter 2002-8-24 18038 Contra Costa Lower Perkins Canyon on NE base of Mount Diablo. Comment
  UC691193  Briza minor Mary L. Bowerman 1931-4-11 686 Contra Costa Pine Canyon Mount Diablo (lower end) 121 Comment
  JEPS116934  Brodiaea David Gowen 2008-4-27 874 Contra Costa Contra Loma Regional Park entrance at Black Diamond Mines Regional Preserve parking area at Frederickson Lane, north of parking area. Comment
  JEPS100061  Brodiaea elegans G. Smick 2003-6-6 GAS 216 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  OBI70522  Bromus carinatus D. G. Kelch 2008-4-25 8 .089 Contra Costa Alvarado Park (W end of Wildcat Cyn Park) on N facing hillside above Hindu temple 122 Comment
  POM300680  Bromus carinatus Mary L. Bowerman 1935-5-16 3010 Contra Costa Behind Gabriel-Hinks' (east side of North Peak) 290 Comment
  SEINET7106148  Bromus carinatus Beecher Crampton 1960-3-29 5481 Contra Costa City of El Cerrito, corner of Carlon and Lassen Boulevards.; 0 Comment
  UC677607  Bromus carinatus var. carinatus A. A. Beetle 1942-3-22 2931 Contra Costa near Richmond (San Francisco Bay, Brooks Island); San Francisco Bay, Brooks Island Comment
  UC692285  Bromus carinatus var. carinatus Mary L. Bowerman 1935-5-16 3010 Contra Costa behind Gabriel-Hinks (Mount Diablo, e side of North Peak); Mount Diablo, North Peak 289 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
  UC2028404  Bromus diandrus Barbara Ertter with Christopher Baysdorfer 1998-5-10 16113 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, along Ohlone Trail Comment
  UCD36912  Bromus diandrus Beecher Crampton 1956-5-14 3378 Contra Costa 4.6 miles south of city of Antioch, on Empire Mine Drive, at head of Horse Valley. Comment
  UC1618047  Bromus hordeaceus Donald G. Nelson 1937-3-30 477 Contra Costa s of Byron (on road to Tracy, along railroad tracks paralleling the highway) Comment
  UC697131  Bromus hordeaceus Mary L. Bowerman 1935-5-16 3007 Contra Costa behind Gabriel-Hinks (Mount Diablo, e side of North Peak); Mount Diablo, North Peak 289 Comment
  UC697134  Bromus hordeaceus Mary L. Bowerman 1931-4-4 644 Contra Costa Mount Diablo, West Raod, about 1 mi from entrance Mount Diablo; , West Raod Comment
  UC692364  Bromus laevipes Mary L. Bowerman 1935-5-16 2993 Contra Costa Mount Diablo, Russelman Park, just s of the n baundary of section 25 (e of gate) Russelman Park; Mount Diablo, Russelman Park Comment
  UCD58920  Bromus laevipes P. B. Kennedy 1916-5-1 s.n. Contra Costa Pinehurst. Comment
  CAS-BOT-BC162451  Bromus laevipes Leon E. Pavlick; L. R. Abrams 1921-5-25 8041 Contra Costa At spring 4.25 miles from summit of Mount Diablo. Comment
  POM301030  Bromus madritensis Mary L. Bowerman 1933-5-8 2004 Contra Costa Fossil Ridge, south face, not far from but out of sight of South Entrance 290 Comment
  CAS-BOT-BC162353  Bromus madritensis Mary L. Bowerman 1935-4-19 2863 Contra Costa Mount Diablo. Near Turtle Rock. 457 Comment
  UC691208  Bromus madritensis subsp. madritensis M. L. Bowerman 1932-4-27 1382 Contra Costa S face, canyon W of Riggs Canyon Oyster ridge 335 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
  HSC9309  Bromus madritensis subsp. rubens Greg Bos 1963-4-10 74 Contra Costa El Cerrito Hills, E end 76 Comment
  CDA29488  Bromus pseudolaevipes D. G. Kelch, Troy MacGregor 2009-5-1 9 .276 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  UCD59633  Bromus rubens A. A. Beetle 1942-3-22 2930 Contra Costa Taber Island. Small island off SW side of Brooks Island in San Francisco Bay. Comment
Read comments
Aug 20 2011
  CDA31607  Bromus stamineus D. G. Kelch, A. G. Murdock 2005-6-27 5 .395 Contra Costa Carquinez Strait; 6th Street at Lillian Street, Crockett. Comment
  UC691132  Bromus trinii Mary L. Bowerman 1932-5-6 1428 c Contra Costa Mount Diablo, Mitchell Canyon Mitchell Canyon; Mount Diablo, Mitchell Canyon 251 Comment
  UC692339  Bromus trinii Mary L. Bowerman 1933-4-15 1874 c Contra Costa Canyon s of Arroy del Cerro (Mount Diablo, 250 ft below spring); Mount Diablo Comment
  CAS-BOT-BC233995  Calandrinia breweri Mary L. Bowerman 1932-4-16 1338 Contra Costa Eagle Point ridge south of 1682 point, Mount Diablo Comment
  UC765774  Calandrinia breweri R. F. Hoover 1939-4-13 4019 Contra Costa head west branch Markley Canyon Comment
  UC692020  Calandrinia ciliata Mary L. Bowerman 1939-5-2 3741 Contra Costa by road to Barbecue Terrace ((off South Road)); Mount Diablo 563 Comment
  JEPS48655  Calandrinia ciliata Elsa Kraeger 1926-5-7 Contra Costa near Toll Gate (road to Mt. Diablo) Comment
  UC692306  Calandrinia ciliata Mary L. Bowerman 1931-2-22 522 Contra Costa Sycamore Ridge Mount Diablo Comment
  JEPS108319  Calendula arvensis David Gowen 2005-2-23 166 Contra Costa Mt. Diablo State Park. Juniper Trail just south of Silver Spring. Comment
  UC768643  Calochortus albus R. F. Hoover 1939-4-26 4067 Contra Costa Head of Markley Canyon (w branch) Markley Canyon 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
  UC2028974  Calochortus argillosus Barbara Ertter with Brad Olson et al. 2000-6-2 17296 Contra Costa north side Brushy Peak Regional Preserve NE of Livermore. Comment
  JEPS112497  Calochortus luteus D. G. Kelch 2004-5-7 04 .180 Contra Costa Ca ada del Cierbo 40 Comment
  UC2028365  Calochortus luteus Barbara Ertter 1998-6-20 16259 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, NE base of Haystack Hill Comment
  CAS-BOT-BC132488  Calochortus pulchellus A. D. E. Elmer 1903-6-1 4631 Contra Costa Mount Diablo Comment
  CAS-BOT-BC132492  Calochortus pulchellus Volney Rattan 1880-1-1 s.n. Contra Costa Martinez Comment
  CAS-BOT-BC132504  Calochortus pulchellus Alice Eastwood 1923-5-4 11728 Contra Costa Mt. Diablo Comment
  JEPS61709  Calochortus pulchellus W. L. Jepson 1918-6-3 7570 Contra Costa Donner Canyon Mt. Diablo 533 Comment
  LA22451  Calochortus pulchellus Carl Purdy; 1899-5-15 sn Contra Costa Mt. Diablo Comment
  RSA369096  Calochortus pulchellus Ora M. Clark 1928-1 s.n. Contra Costa Mt. Diablo Comment
  SBBG54485  Calochortus pulchellus L. R. Abrams 1921-5-25 8053 Contra Costa Mt Diablo, 4.5 mi from summit Comment
  SEINET5245480  Calochortus pulchellus Unknown 1995-6-15 02 Contra Costa Mount Diablo State Park 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
  POM153228A  Calochortus pulchellus C. L. Hitchcock 1928-6-5 14 Contra Costa Between Port Costa and Martinez. 18 Comment
Read comments
Feb 14 2017
  JEPS61718  Calochortus splendens W. L. Jepson 1919-6-8 8326 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC483487  Calochortus splendens Mary L. Bowerman 1931-5-23 898 Contra Costa Oyster Pont Ridge Comment
  CDA9192  Calochortus superbus Christopher Thayer 1996-6-7 s.n. Contra Costa On SW facing grassy slopes on Oursan Trail not far above Hampton Road. EBMUD property. 0 Comment
  JEPS17793  Calochortus umbellatus W. L. Jepson 1899-4-19 Contra Costa Las Trampas Canyon Comment
  SBBG52847  Calochortus umbellatus M. L. Long -Apr-1978 Contra Costa hills W of Rossmoor, Walnut Crk Comment
Read comments
Jan 28 2012
  UC2028988  Calochortus venustus Barbara Ertter 2000-5-14 17007 Contra Costa Donner Canyon on north side of Mount Diablo, SW end of Falls Trail between Middle Trail and Donner Creek crossing. Comment
  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
  POM301048  Calycadenia truncata subsp. truncata Mary L. Bowerman 1931-9-12 1040 Contra Costa Mitchell Canyon 838 Comment
  CAS-BOT-BC275351  Calycadenia truncata var. truncata Mary L. Bowerman 1936-9-1 3536 Contra Costa Mount Diablo. Between North Peak and the mouth of Perkins Canyon 487 Comment
  UC1818948  Calystegia purpurata subsp. purpurata Barbara Ertter, volunteers 1996-5-11 14643 Contra Costa North Gate Road at northwest base of Mount Diablo, just barely inside state park boundary; along Little Pine Creek. 176 Comment
  UCD150753  Calystegia sepium James A. Neilson Jr. 1972-11-2 3612 Contra Costa 2 miles NW of Concord, at intersection of Hwy 4 and Walnut Creek. 7 Comment
  CAS-BOT-BC202026  Calystegia sepium subsp. limnophila J. W. Congdon 1893-7-30 s.n. Contra Costa Martinez Comment
  CAS-BOT-BC209525  Calystegia sepium subsp. limnophila Ira L. Wiggins 1954-9-5 13123 Contra Costa Levee along Bethel Island Comment
  CDA39892  Calystegia sepium subsp. limnophila A. G. Murdock 2004-6-4 321 Contra Costa Carquinez Strait Region; Pecheco Marsh. Comment
  RSA710249  Calystegia subacaulis R. K. Brummitt, Barbara Ertter, N. A. Brummitt 1998-5-6 19788 Contra Costa Mt. Diablo. NE side, Donner Track. 400 Comment
  UC2042953  Calystegia subacaulis Barbara Ertter with David Gowen 2012-6-9 21021 Contra Costa Seaview Trail north of Vollmer Peak, southeastern Tilden Park in Berkeley Hills. Comment
  POM31989  Camissonia campestris subsp. campestris C. F. Baker 1903-4-28 2807 Contra Costa Antioch Comment
  UC107666  Camissonia campestris subsp. campestris Katharine Curran May 1883 Contra Costa Antioch Comment
  UC635287  Camissonia campestris subsp. campestris H. L. Mason 1929-3-31 5153 Contra Costa Antioch San Joaquin River (sand dike along river) Comment
  UC2028251  Camissonia intermedia Barbara Ertter, Mary Bowerman, Lisa Schultheis 1998-8-21 16397 Contra Costa South side of Mount Diablo, South Gate Road 1.1 miles below entry kiosk. Comment
  JEPS125934  Camissonia micrantha D. W. Taylor 2001-3-22 17616 Contra Costa Kreyenhagen Hills; Cedar Canyon, tributary to Zapato Chino Canyon, along southern flank of ridge forming divide with Garcia Canyon to the north; ca 5 air miles W of Avena Comment
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Jun 18 2019
  RSA195470  Camissonia micrantha Peter H. Raven 1963-3-29 18141 Contra Costa Along Sacramento River just above Antioch Comment
  RSA41307  Camissonia ovata Robert F. Hoover 1938-2-21 2755 Contra Costa Point Richmond. Comment
  UC874075  Camissoniopsis intermedia Lewis S. Rose 1941-5-15 41229 Contra Costa w. slope Mt. Diablo 274 Comment
  UC140387  Camissoniopsis micrantha C. F. Baker 1903-4-25 2808 Contra Costa sandhills Antioch Comment
  UC20498  Camissoniopsis micrantha W. H. Brewer 1862-4-24 988 Contra Costa Camp 68 Martinez Comment
  CAS-BOT-BC266437  Campanula exigua Alice Eastwood 1921-6-11 s.n. Contra Costa Mount Diablo summit Comment
  JEPS2509 Image available Campanula exigua Volney Rattan 1886-6-1 Contra Costa Monte Diablo; ; Mt. Diablo Comment
  JEPS6159  Campanula exigua Mary L. Bowerman 1930-6-14 330 Contra Costa Meridian Peak summit; Mount Diablo Comment
  RSA100285  Campanula exigua Mary L. Bowerman 1930-6-14 330 Contra Costa Summit of Mount Diablo 1159 Comment
  JEPS108385  Campanula griffinii David Gowen 2005-4-25 263 Contra Costa Mt. Diablo State Park. South east end of Prospector's Gap Rd., ca 0.3 mile NW of its junction with Ray Morgan Rd. Small area of serpentine outside of the park boundary. Comment
  UC1050327  Campanula grossekii N. Floy Bracelin 1941-8-17 1572 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1789104  Campsis radicans Barbara Ertter 1998-5-10 16370 Contra Costa southeast edge of Antioch Marina. Comment
  UC1126864  Capsella bursa-pastoris R. C. Wilson 1935-3-19 140 Contra Costa 2 mi nw of Wall Point 518 Comment
  UC691065  Capsella bursa-pastoris Mary L. Bowerman 1931-2-8 505 Contra Costa Mount Diablo, West Road(=North Rd), a few mi from entrance Mount Diablo 396 Comment
  CAS-BOT-BC37029  Capsella bursa-pastoris Mary L. Bowerman 1931-2-8 505 Contra Costa Mount Diablo. North Road a new [few?] miles from North Gate. 396 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
  JEPS111869  Cardamine californica D. G. Kelch 2005-2-28 05 .9 Contra Costa Vaca Canyon Vaca Canyon Alhambra Valley Road Bay Forest road cut with Arbutus 165 Comment
  JEPS53386  Cardamine californica J. Burtt Davy 1895-4-13 1006 Contra Costa near Lafayette; near Lafayette Comment
  UCR17079  Cardamine californica James K. Ryan 1969-3-31 45 Contra Costa Mt. Diablo State Park, 0.25 mi inside S gate entrance at first large turnout on left side of rd, at top of steep hill 701 Comment
  LA204280  Cardamine californica John Thomas Howell; 1931-3-10 5757 Contra Costa Mt. Diablo, 7 miles from Clayton on Livermore road Comment
  UC10326  Cardamine californica var. integrifolia W. H. Brewer 1862-5-1 1039 Contra Costa Walnut Creek Comment
  POM203648  Cardamine californica var. integrifolia J. T. Howell 1933-5-14 11255 Contra Costa Hills east of St. Mary s college Comment
  RSA21594  Cardamine californica var. integrifolia C. B. Wolf 1937-3-28 8319 Contra Costa 2 miles south of Pinole on San Pablo road 30 Comment
  RSA0033843  Cardamine oligosperma Barbara Ertter 2000-3-30 16912 Contra Costa North side of Mount Diablo, Deer Flat at head of Mitchell Canyon. Comment
  UC1795823  Cardamine oligosperma Barbara Ertter, Gary Schoolcraft, Tony Morosco 1996-4-6 14564 Contra Costa Black Hawk Ridge Rd. along East Fork Sycamore Cr in Mt Diablo State Park, shaded roadside bank on north-facing slope,oak woods. Comment
  CDA19118  Cardaria chalepensis R. M. Case 2001-5-1 PDR P 088777 Contra Costa Solano Ave., Concord. 0 Comment
  SEINET8734726 Image available Carduus pycnocephalus Laura Zeller 1965-1 83 Contra Costa just E of the University of California Botanical Garden 91 Comment
  UC582525  Carduus pycnocephalus subsp. pycnocephalus Joseph P. Tracy 1934-4-30 13188 Contra Costa roadside between Moraga and Lafayette Moraga 152 Comment
  UC691375  Carduus pycnocephalus subsp. pycnocephalus Mary L. Bowerman 1935-5-25 3079 Contra Costa w road, 2.4 mi from entrance Shepherd's Camp; Mount Diablo 304 Comment
  JEPS79443  Carduus tenuiflorus Edward Lee with Annetta Carter 1935-6-13 1431 Contra Costa s Richmond Panhandle Boulevard; Richmond Comment
  POM226232  Carduus tenuiflorus J. T. Howell 1933-5-21 11323 Contra Costa San Pablo Comment
  UC2028189  Carduus tenuiflorus Barbara Ertter 1998-5-3 16054 Contra Costa Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. Comment
  CAS-BOT-BC17999  Carex aquatilis var. dives Walter Knight; Joanne Dean 1978-8-14 3142 Contra Costa Browns Island. Comment
  UC1555369  Carex barbarae Jerry Powell 1988-3-8 1526 Contra Costa Point Molate in W Richmond Comment
  CAS-BOT-BC19207  Carex barbarae Walter Knight; B. Atwater; R. Bensler; J. Dean; B. Mortensen 1979-4-13 3365 Contra Costa Alder Point. Browns Island. Comment
  UC2013067  Carex barbarae Barbara Ertter with Lisa Schultheis 1996-9-2 15279 Contra Costa South side Mount Diablo, Sycamore Creek below Sulfur Spring. Comment
  UC70611  Carex densa Jos. Burtt Davy 1899-4-19 7843 Contra Costa Glorietta; Inner Coast Range Mountains Comment
  CDA31160  Carex globosa D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .227 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  SEINET11263180  Carex globosa Barbara Ertter, A. T. Whittemore; Joanne Kerbavaz 2001-5-22 17650 Contra Costa South side of Mount Diablo, headwaters of West Branch Alamo Creek ESE of Knobcone Point, below powerline at end of Knobcone Point road.; 0 457 Comment
  RSA720799  Carex nudata Mary L. Bowerman 1977-04 s.n. Contra Costa Mount Diablo. Sycamore Creek canyon. 244 Comment
  UC1618279  Carex pellita Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, and Amy Hiss 1991-8-18 10705 Contra Costa opposite Pittsburg Marina (near w end of island, n of Pittsburg, near confluence of Sacramento and San Joaquin rivers); 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
  UC1949083  Carex pendula Barbara Ertter with Jim Dunne, David Gowen, Lech Naumovich 2009-12-3 19797 Contra Costa at upper (south) end of San Pablo Dam Reservoir northwest of Orinda Comment
  UC1952822  Carex pendula Barbara Ertter with 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 mi N of jct Paraiso Trail Comment
  JEPS22098  Carex praegracilis G. Thomas Robbins 1958-7-19 3908 Contra Costa at the edge of a small lagoon about 3/4 mi s Pt. San Pablo; San Francisco Bay, Richmond, Potrero San Pablo, Pt. Orient Comment
  JEPS25158  Carex praegracilis G. Thomas Robbins with John Weiler 1959-5-23 4029 Contra Costa at the nw edge of Brooks Island San Francisco Bay, Richmond, Brooks Island Comment
  UC2028564  Carex serratodens Barbara Ertter with Mary Bowerman 1996-11-1 15405 Contra Costa North base of Mount Diablo, lower Donner Creek between trailhead and cabin site, along now dried stream bed. Comment
  RSA0027404  Carex tumulicola Barbara Ertter 1999-7-17 16770 Contra Costa Tilden Regional Park, trail to Jewel Lake paralleling Wildcat Creek, through thick woodland growth. Comment
  CDA41348  Castilleja affinis D. G. Kelch 2005-6-14 5 .332 Contra Costa East Bay; San Pablo. North Alvarado Park, south of San Pablo Dam Rd. Comment
  HSC87801  Castilleja affinis Jennifer Roth 1979-4-29 35 Contra Costa Clayton, Russleman Park Rd. off March Creek Rd. Concord Mt. Diablo Trail Ride Association grounds. 335 Comment
  UC2027927  Castilleja affinis subsp. affinis Barbara Ertter with Linda Vorobik 2001-3-24 17570 Contra Costa Lime Ridge Open Space east of Walnut Creek, eastern edge overlooking Crystal Springs subdivision. Comment
  UC27146  Castilleja attenuata J. Burtt Davy 1895-4-7 957 Contra Costa Antioch Comment
  UC54724  Castilleja densiflora subsp. densiflora J. P. Tracy 1903-4-18 1806 Contra Costa e slope beyond Bald Peak (hills near Berkeley); San Francisco Bay Region 304 Comment
  JEPS23261  Castilleja densiflora subsp. densiflora G. Thomas Robbins 1959-4-26 4005 Contra Costa about 1 mi ne Giant (about 0.25 mi n of San Pablo Oil Tank Farm) 15 Comment
  CHSC21620  Castilleja exserta Willis Ball 1974-4-21 425 Contra Costa In area #7. Immediately to the w side of Contra Loma Blvd. ca. 400 yds s of the main boat ramp. Contra Loma Regional Park. 45 Comment
  CHSC22515  Castilleja exserta Robert A. Schlising 1962-3-24 2106 Contra Costa Coast Ranges. Along Marsh Creek Road, about 4 mi w of Byron. Comment
  CDA41324  Castilleja exserta subsp. exserta D. G. Kelch 2004-5-7 4 .187 Contra Costa Carquinez Strait; Canada del Cierbo. Comment
  JEPS19519  Castilleja exserta subsp. exserta Rimo Bacigalupi with G. T. Robbins 1956-5-11 5640 -A Contra Costa .33 mi e Pinole (between State Hwy 4 (Franklin Canyon Rd) and Santa Fe Ry right-of-way, 0.25 mi e of junction of this rd with U.S. Hwy 40) Comment
  UC1301202  Castilleja exserta subsp. exserta Helen K. Sharsmith 1963-4-7 5289 Contra Costa w of Antioch (e side of Kirker Pass road); San Francisco Bay Region 152 Comment
  UC673456  Castilleja exserta subsp. exserta H. L. Mason 1928-3-4 4168 Contra Costa Shell Ridge Comment
  JEPS15165  Castilleja foliolosa R. C. Wilson 1935-3-14 136 Contra Costa Head of Sycamore Creek; Mt. Diablo Quad. 365 Comment
  UC1081509  Castilleja foliolosa H. L. Mason 1928-3-4 4169 Contra Costa Shell Ridge Comment
  UC1377744  Castilleja foliolosa W. J. Dress 1951-3-16 3054 Contra Costa about 1 mi e Berkeley (along Fish Ranch Road) Comment
  CAS-BOT-BC241277  Castilleja latifolia Alice Eastwood 1915-6-21 4740 Contra Costa San Leandro Comment
  CDA41397  Castilleja rubicundula subsp. lithospermoides A. G. Murdock 2003-6-24 114 Contra Costa Carquinez Strait; Near upper trail on north side of Mount Wanda, Martinez. Comment
  SEINET10582750  Castilleja wightii Lawrence R. Heckard 1973-6-6 Heckard 3421 Contra Costa Ravine behind La Moine Park (Richmond). 122 Comment
  CAS-BOT-BC41040  Caulanthus flavescens A. R. Kruckeberg 1949-4-16 1735 Contra Costa Above road, 2 miles inside old North Entrance to Mount Diablo State Park (not tollgate). Comment
  UCD114675  Caulanthus lasiophyllus P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  CAS-BOT-BC48831  Ceanothus cuneatus W. W. Carruth 1902-3-1 s.n. Contra Costa Pine Ridge Moraga Valley Comment
  UCD111741  Ceanothus cuneatus W. Ebeling 1929-3-19 s.n. Contra Costa Mount Diablo. Comment
  JEPS48863  Ceanothus cuneatus var. cuneatus Elsa Kraeger 1926-3-7 Contra Costa e side Mt. Diablo Comment
  UC1071131  Ceanothus cuneatus var. cuneatus R. C. Wilson 1935-3-12 123 Contra Costa 1 mi se, Wall Pt.; Mt. Diablo quad. 335 Comment
  UC692592  Ceanothus cuneatus var. cuneatus Mary L. Bowerman 1932-9-3 1531 Contra Costa Muir Area, Mount Diablo Comment
  CAS-BOT-BC49716  Ceanothus cuneatus var. rigidus Brandegee 93 Contra Costa Nortonville Comment
  JEPS42292  Ceanothus oliganthus var. sorediatus W. L. Jepson 1907-4-26 2465 Contra Costa Mitchell Creek Mt. Diablo Comment
  JEPS42416  Ceanothus oliganthus var. sorediatus W. L. Jepson 1943-4-24 20763 Contra Costa Moraga Ridge Oakland Hills Comment
  UCD129962  Centaurea benedicta Collector Unknown Date Unknown s.n. Contra Costa Southwest of Kelseyville. Comment
  UC1178020  Centaurium muehlenbergii Herbert L. Mason 1955-7-14 14637 Contra Costa 0.5 mi e Antioch Bridge Comment
  UC2028240  Centaurium muehlenbergii Barbara Ertter, Tony Morosco 1998-9-18 16424 Contra Costa Lime Ridge Open Space northwest of Mount Diablo. Comment
  CDA38378  Centaurium tenuiflorum D. G. Kelch 2005-6-24 5 .388 Contra Costa Carquinez Strait Region; Franklin Canyon at McEwen Road. Comment
  CAS-BOT-BC288545  Centromadia fitchii James I. McMurphy 1908-10-18 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC288542  Centromadia fitchii L. S. Rose 1941-10-13 41464 Contra Costa 1 mile E of Walnut Creek 50 Comment
  JEPS95222  Centromadia parryi subsp. congdonii R. E. Preston 1998-10-6 1173 Contra Costa E side of Camino Tassajara, ca. 1 mi S of Highland Road 170 Comment
  CAS-BOT-BC279109  Centromadia pungens subsp. laevis H. D. Ripley; R. C. Barneby 1954-5-1 11340 Contra Costa 1 mi. s. of Byron Hot Springs 15 Comment
  CAS-BOT-BC279196  Centromadia pungens subsp. pungens J McMurphy 1909-5-20 s.n. Contra Costa Antioch Comment
  UC523551  Centromadia pungens subsp. pungens David D. Keck 1933-11-2 2613 Contra Costa 3 mi s Martinez (on road to Pacheco) Comment
  CAS-BOT-BC279191  Centromadia pungens subsp. pungens Niall McCarten; V. I. Dains 1986-1-1 04131748 Contra Costa E. of Byron Hot Springs Rd. Comment
  CAS-BOT-BC279200  Centromadia pungens subsp. pungens A. D. E. Elmer 1903-5-1 4392 Contra Costa Walnut Creek Comment
  CAS-BOT-BC279203  Centromadia pungens subsp. pungens David D. Keck 1932-7-7 1736 Contra Costa Just east of Nichols Comment
  CAS-BOT-BC222900  Cephalanthus occidentalis Vincent Jones 1920-8-28 s.n. Contra Costa Orwood Comment
  UC692408  Cerastium glomeratum Mary L. Bowerman 1931-3-7 545 Contra Costa Mt. Diablo, Sheep Camp Spring Comment
  UCSB23747  Chamaesyce maculata Olson, Glen 1968-7-15 Contra Costa North side of Saint Mary's Road, 0.4 mile east of its junction with Moraga Rd. 91 Comment
  JEPS111950  Chamaesyce serpens D. G. Kelch 2004-5-21 04 .221 Contra Costa Crockett - Edwards Canyon Edwards Creek EBRP Staging Area near Greenhouse 24 Comment
  UC2062612  Chamaesyce serpens Barbara Ertter with John Ginochio 2002-6-1 17945 a Contra Costa Ginochio house on south side of North Gate Road on NW base of Mount Diablo, lower Arroyo del Cerro. Comment
  JEPS107063  Cheilanthes intertexta J. Greenhouse with Kevin Hintsa 2004-4-5 5086 Contra Costa Mt. Diablo, Fire Interpretive Trail, Devil's Pulpit 1088 Comment
  UC2036953  Chenopodium Mary L. Bowerman 1946-2-10 4083 Contra Costa Near C.C.C. Camp, Mount Diablo. Comment
  CHSC23348  Chenopodium album Willis Ball 1975-6-1 532 Contra Costa Contra Loma Regional Park. In area #11. On n side of road ca. 200 yds e of main entrance to park. 60 Comment
  UC1328154  Chenopodium album Olive Dyer 1936-9-5 28 w Contra Costa 1/2 mi above San Pablo Ave.; Wildcat Creek Comment
  UC1199816  Chenopodium californicum Herbert L. Mason 1929-3-31 5158 Contra Costa Antioch Sacramento River Comment
  UC14076  Chenopodium californicum Chesnut and Drew 1889-4-18 Contra Costa Antioch; sand hills Comment
  UC691935  Chenopodium californicum Mary L. Bowerman 1931-3-7 546 Contra Costa Sheep Corral Spring Mount Diablo Comment
  JEPS68928  Chenopodium multifidum Edward Lee 1934-9-30 1222 Contra Costa Moraga; just se of station Comment
  CDA3133  Chenopodium vulvaria D. G. Kelch, A. G. Murdock 2005-7-11 5 .459 Contra Costa Carquinez Strait Region; Crockett - Edwards Canyon. Edwards Creek Staging Area. Comment
  UC691956  Chlorogalum pomeridianum var. pomeridianum Mary L. Bowerman 1930-6-5 239 Contra Costa North Road 2.9 mi from North Gate Mount Diablo; Mount Diablo 243 Comment
  CAS-BOT-BC252678  Chorizanthe membranacea Alice Eastwood 1915-5-30 s.n. Contra Costa Mt. Diablo Comment
  RSA392753  Chorizanthe membranacea L. S. Rose 1941-5-15 41230 Contra Costa Mt. Diablo, w. slope 396 Comment
  UC1135219  Chrysolepis chrysophylla var. minor R. W. Lundh 1933-3-2 208 Contra Costa 0.5 mi n Pinehurst; Concord Quad. 304 Comment
  OBI3313  Chrysolepis chrysophylla var. minor Neil Havlik 1969-9-1 518 Contra Costa Along the Huckleberry Trail aobut 1/2 mi from Skyline Blvd, Oakland HIlls 396 Comment
  UCD110102  Chrysolepis chrysophylla var. minor J. M. Tucker 1941-9-26 408 Contra Costa Summit of Moraga Ridge. Comment
  UC72145  Cicendia quadrangularis Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  RSA0070597  Cirsium cymosum C. M. Belshaw 1936-5-7 2050 Contra Costa 2 miles north of Danville 244 Comment
  UC1119189  Cirsium cymosum var. cymosum C. M. Belshaw 1936-5-7 2050 Contra Costa 2 mi n of Danville; Mt. Diablo Quadrangle 243 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
  UC691385  Cirsium occidentale var. californicum Mary L. Bowerman 1934-4-21 2538 Contra Costa Muir Area, upper brushy edge Mount Diablo, Muir Area Comment
  RSA0070867  Cirsium quercetorum J. T. Howell 1938-6-30 13940 Contra Costa Berkeley Hills on NE slope near head of Wildcat Canyon. 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
  JEPS111557  Clarkia affinis A. G. Murdock 2003-6-2 85 Contra Costa Port Costa - Reservoir: Uphill bank at east Crockett-Port Costa junction 28 Comment
  UC1122360  Clarkia affinis C. M. Belshaw 1936-5-15 2130 Contra Costa Stewartsville Mt. Diablo Quadrangle Comment
  UC692504  Clarkia affinis Mary L. Bowerman 1933-5-17 2095 Contra Costa due s Olafsons' barn (branch of Curry Cave Canyon); Mount Diablo Comment
  UC1795900  Clarkia affinis Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14639 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; grassy hillside. Comment
  UC2070449  Clarkia affinis Barbara Ertter with Steve Matson 2003-5-31 18179 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, Coal Canyon. Comment
  JEPS43657  Clarkia biloba Ivar Tidestrom June, 1895 Contra Costa Crockett Comment
  UC692439  Clarkia biloba Mary L. Bowerman 1935-6-15 3139 Contra Costa below Ransom Point (Eagle Point Ridge); Mount Diablo 822 Comment
  UCD21831  Clarkia biloba C. Thayer 1994-8-1 s.n. Contra Costa West side of Lafayette Ridge, Lafayette. Comment
  CAS-BOT-BC163610  Clarkia biloba subsp. biloba Mary L. Bowerman 1930-6-22 355 Contra Costa Mitchell Canyon Comment
  JEPS111555  Clarkia concinna subsp. concinna A. G. Murdock 2003-6-2 80 Contra Costa Franklin Canyon - McHarry Ranch Rd. East side of road on bank above creek across from fire road gate. 137 Comment
  JEPS43618  Clarkia concinna subsp. concinna W. L. Jepson 1923-6-10 9987 Contra Costa Upper Marsh Creek Mt. Diablo Comment
  UC692495  Clarkia concinna subsp. concinna Mary L. Bowerman 1931-5-21 879 Contra Costa Mount Diablo, Curry Cave Point Trail Curry Cave Point Trail; Mount Diablo, Curry Cave Point Trail 350 Comment
  UC2042956  Clarkia gracilis Barbara Ertter with David Gowen 2007-5-13 19014 Contra Costa Mount Diablo, W of Prospectors Gap Road just E of junction Meridian Ridge Road. Comment
  UC1818899  Clarkia gracilis subsp. gracilis Barbara Ertter, Mary Bowerman 1994-6-19 12853 a Contra Costa Mt. Diablo State Park east of Walnut Creek; scrub oak thicket north of road, north of lower summit parking lot, next to drainage on north facing slope. Comment
  UC2031423  Clarkia modesta Barbara Ertter with David Gowen 2007-5-13 19015 Contra Costa Mount Diablo, W end Prospectors Gap Road just E of of junction Meridian Ridge Road Comment
  CAS-BOT-BC172557  Clarkia purpurea subsp. purpurea Edw. L. Greene 1889-5-1 32 Contra Costa Near Martinez Comment
  RSA60760  Clarkia purpurea subsp. purpurea Edward L. Greene 1889-05 s.n. Contra Costa Martinez Comment
  UC1122405  Clarkia purpurea subsp. quadrivulnera C. M. Belshaw 1936-5-8 2053 Contra Costa 1 3/4 mi ssw Mt. Diablo summit (near plot 4); Mt. Diablo Quadrangle Comment
  CAS-BOT-BC163666  Clarkia purpurea subsp. quadrivulnera Mary L. Bowerman 1931-4-25 760 Contra Costa Mount Diablo. Above junction of North and South Roads Comment
  CAS-BOT-BC163674  Clarkia purpurea subsp. quadrivulnera H. L. Mason 1928-4-26 4379 Contra Costa Around Berkeley and Oakland Comment
  POM300660  Clarkia purpurea subsp. quadrivulnera Mary L. Bowerman 1931-4-25 760 Contra Costa Mount Diablo, above junction of south and west roads Comment
  CAS-BOT-BC165038  Clarkia rubicunda Peter H. Raven 1957-6-20 10950 Contra Costa Hillside at Inspiration Point, east end of Tilden Regional Park 365 Comment
  RSA113596  Clarkia rubicunda Peter H. Raven 1957-7-5 11050 Contra Costa Northeast side of the hills at Point Richmond 107 Comment
  RSA113670  Clarkia rubicunda Peter H. Raven 1957-6-20 10950 Contra Costa Inspiration Point, east end of Tilden Regional Park 366 Comment
  JEPS100002  Clarkia unguiculata G. Smick 2003-5-20 GAS 194 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  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-BC439166  Claytonia exigua subsp. exigua Mary L. Bowerman 1932-3-12 1113 Contra Costa Mount Diablo. Alamo Canyon 365 Comment
  UC7939  Claytonia exigua subsp. exigua State Survey 1862-5-7 1059 Contra Costa Mt. Diablo Summit Comment
  CAS-BOT-BC439174  Claytonia exigua subsp. exigua C. F. Baker 1903-4-28 2816 Contra Costa Mitchell's canon [Mitchell Canyon], Mt. Diablo Comment
  SEINET198599 Image available Claytonia gypsophiloides P. Kamb, F Chisaki 1950-3-18 1638 Contra Costa Saddle betwee4n N and S peaks of Mt. Diablo 880 Comment
  UC1745431  Claytonia parviflora subsp. parviflora Annetta M. Carter, Leo Bowerman 1935-6-1 872 Contra Costa Mt. Diablo. N-facing slope of main ridge running W from peak. 975 Comment
  UC2028210  Claytonia parviflora subsp. parviflora Barbara Ertter, Tony Morosco 1998-4-12 15999 Contra Costa Base of Mount Olympia on north side of Mount Diablo, talus above quarry NE of Olympia Trail. Comment
  UC1051262  Clematis heracleifolia var. davidiana N. Floy Bracelin 1941-7-4 1459 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS5893  Collinsia bartsiifolia var. bartsiifolia Chesnut and Drew 1889-4-16 Contra Costa near Concord 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
  UC691582  Collinsia heterophylla Mary L. Bowerman 1930-6-5 245 Contra Costa West Road 5.8 mi from entrance, Mount Diablo Mount Diablo; , West Road 457 Comment
  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
  JEPS108350  Collinsia sparsiflora David Gowen, Mike Parks 2005-3-30 219 Contra Costa Mt. Diablo State Park. East facing slope at base of Alamo Canyon. 350 Comment
  JEPS108353  Collinsia sparsiflora David Gowen 2005-3-31 221 Contra Costa Sibley Regional Preserve. East facing slope just east of Park boundary near dirt road that heads northeast. Comment
  UC26642  Collinsia sparsiflora var. collina State Survey Contra Costa Mount Diablo Comment
  UCSB12513  Conium maculatum Grah, Nancy 1962-4-14 Contra Costa 0.1 mile on Tappan Lane morth of Tarry Lane, Orinda Comment
  UC2036956  Conyza bonariensis Mary L. Bowerman 1946-2-10 4082 Contra Costa Near C.C.C. Camp, Dan Cook Canyon, Mt. Diablo. Comment
  JEPS75556  Conyza canadensis P. F. Yorks 1975-9-6 494 Contra Costa on Hampton Road 1.6 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Prserve 170 Comment
  HSC33256  Conyza canadensis A. M. Montalvo, J. D. Ackerman 1974-12-1 435 Contra Costa Walnut Creek, Olympic Dr. between Tice Valley Rd. and Pleasant Hill Rd. Comment
  JEPS77538  Cordylanthus mollis subsp. mollis Charles Patterson June, 1978 Contra Costa tidal marsh near Shore Acres; West Pittsburg 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
  CAS-BOT-BC287145  Coreopsis stillmanii Brandegee No date on label s.n. Contra Costa Mt Diablo 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
  UC2028555  Cortaderia selloana Barbara Ertter 1998-11-15 16459 Contra Costa North side Mount Olympia on north side Mount Diablo. Comment
  CAS-BOT-BC169517  Corylus cornuta subsp. californica Barrett Anderson 1987-4-29 3477 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD. 125 Comment
  UC1620000  Cotoneaster lacteus Barbara Ertter 1997-1-5 15432 Contra Costa Ygnacio Valley Road at Lime Ridge between Walnut Creek and Clayton, south facing roadcut. Comment
  JEPS99943  Cotoneaster pannosus G. Smick 2003-6-6 GAS 218 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1622290  Cotoneaster pannosus Barbara Ertter 1997-1-5 15431 Contra Costa at Lime Ridge between Walnut Creek and Clayton (Ygnacio Valley Road); Lime Ridge, Ygnacio Valley Road Comment
  RSA721748  Cotula australis Barbara Ertter, Mary Bowerman, et al. 1995-5-7 14055 Contra Costa Three-Springs on NE side of Mt. Diablo SE of Clayton, road behind houses traversing north-facing slope Comment
  UC691659  Cotula coronopifolia Mary L. Bowerman 1931-3-29 624 Contra Costa n side of Cave Point (head of canyon); Mount Diablo; hollow on east side of Cave-Windy ridge Comment
  UC692658  Crassula aquatica Mary L. Bowerman 1935-6-21 3154 Contra Costa e. Turtle Rock pool; Mt. Diablo Comment
  UC1543007  Crassula aquatica Donald G. Nelson 1937-4-19 505 Contra Costa n.w. corner lot at Sacramento St. on Panhandle Blvd. El Cerrito (1 block w. of San Pablo Ave.) Comment
  CAS-BOT-BC427672  Crassula connata Alice Eastwood 1914-3-14 3810 Contra Costa Byron Springs Comment
  UC2029040  Crassula tillaea Barbara Ertter 2000-3-30 16900 Contra Costa North base of Mount Diablo, Mitchell Canyon trailhead. Comment
  CDA4469  Crepis bursifolia G. D. Barbe 1978-7-2 2405 Contra Costa 2800 block of East Street between Sycamore and Maple Avenue, Concord. 0 Comment
  JEPS78617  Cressa truxillensis Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3289 Contra Costa Brown Island, Sandy Knoll Comment
  UC23230  Cressa truxillensis Jos. Burtt Davy 1900-6-7 6678 Contra Costa Martinez Comment
  RSA292977  Cressa truxillensis Reino Alava 1957-5-20 880 Contra Costa About one mile south of Byron. Comment
  UC692624  Crocanthemum scoparium var. vulgare Mary L. Bowerman 1931-12-17 1072 Contra Costa e of, s face Rock Canyon; Mount Diablo, Fossil Ridge, Dan Cook Ridge Comment
  UC692613  Crocanthemum scoparium var. vulgare Mary L. Bowerman 1931-11-7 1067 Contra Costa 1920 point Mount Diablo, Inner Black Hills Comment
  OBI15230  Crossosoma californicum Neil Havlik 1968-3-21 82 Contra Costa Charles Lee Tilden Regional Park, E of Berkeley Comment
  UC30123  Croton californicus Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  UC447211  Croton californicus C. F. Baker 1903-4-25 2825 Contra Costa Antioch Comment
  RSA480683  Croton californicus E. E. Stanford 1930-5-30 1533 Contra Costa Near Knightsen. Comment
  UCD141936  Croton californicus R. F. Hoover 1935-3-10 s.n. Contra Costa Antioch. Comment
  CAS-BOT-BC190080  Crypsis schoenoides Walter Knight 1978-8-27 3197 Contra Costa Loma Regional Park near Antioch. 30 Comment
  SEINET4343820 Image available Crypsis vaginiflora Unknown 1989-9-30 8865 Contra Costa Tilden Regional Park E of El Cerrito, East Bay Skyline Nat'l Recreation Trail (= Nimitz Way), small dried pond ca 1 1/4 mi NW of Inspiration Point. Comment
  UC55905  Cryptantha microstachys Jos. Burtt Davy 1901-4-21 7046 Contra Costa Wildcat Canyon Comment
  UC2031470  Cryptantha torreyana Barbara Ertter 1993-6-25 11906 Contra Costa Oakland-Berkeley Hills, Skyline Trail ca 1/4 miles south of Tilden miniature steams trains, head of Siesta Valley Comment
  UC691345  Cryptantha torreyana Mary L. Bowerman 1933-5-22 2164 Contra Costa near saddle just west of Cave Point Comment
  CDA923  Cupressus macrocarpa D. G. Kelch 2006-5-5 6 .128 Contra Costa East Bay; Wildcat Canyon Regional Park. Near Wildcat Canyon Road terminus. Comment
  OBI14811  Cuscuta californica Robert F. Hoover 1969-8-29 11565 Contra Costa Raymond Rd and Ames St, Livermore Valley Comment
  CDA21191  Cuscuta japonica R. Fonseca 2006-12-12 PDR 1373709 Contra Costa San Francisco Bay Area; 654 Marlesta Rd, Pinole. Sheet 1 of 2. 0 Comment
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Apr 29 2013
  CDA33503  Cuscuta japonica Naing/Yost 2009-6-21 PDR# 1503038 Contra Costa Rodeo; 1380 San Pablo Ave. 0 Comment
  UCD126325  Cuscuta salina M. Wiesendanger 1926-6-1 1533 Contra Costa Richmond. Comment
  CAS-BOT-BC299744  Cynara cardunculus John Thomas Howell 1953-3-15 28922 Contra Costa Danville Comment
  UC2013066  Cynara cardunculus Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14927 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  UCSB21184  Cynoglossum grande Jones, D. 1967-3-25 Contra Costa Mt. Diablo State Park 475 Comment
  JEPS99550  Cynosurus echinatus Mary Bowerman 1976-6-24 Contra Costa Mount Diablo, inner Black Hills just west of meridian and south of crest. Comment
  SEINET3909439  Cyperus eragrostis T. Morley 1940-12-3 90 Contra Costa Banks at upper end of San Leandro Lake near mouth of Redwood Creek.; 0 130 Comment
  UC1606358  Cyperus eragrostis Barbara Ertter, Brad Olson 1991-9-28 10848 Contra Costa s. end San Pablo Reservoir (between Orinda and El Sobrante) 97 Comment
  CAS-BOT-BC114618  Cyperus eragrostis Walter Knight; Wayne Roderick; Stephen W. Edwards; B. Doyle 1978-9-19 3264 Contra Costa Browns Island, South Landing. Comment
  UCR101144  Cyperus niger L. C. Wheeler 1952-10-2 7000 Contra Costa Mount Diablo: c. 0.8 mi up from Turtle Ranch, c. 1 mi downhill from divide in road 550 Comment
  CAS-BOT-BC113834  Cyperus niger John Thomas Howell 1950-7-5 26633 Contra Costa Spring along North Road, Mt. Diablo. Comment
  RSA605653  Cyperus niger var. capitatus L. C. Wheeler 1952-10-2 7000 Contra Costa Mount Diablo: ca. 0.8 mile up from Turtle Ranch, ca. 1 mile downhill from divide in road. Comment
  CAS-BOT-BC113937  Cyperus odoratus Walter Knight; Irja Knight 1980-8-26 3769 Contra Costa Hercules. Comment
  UC692656  Cypselea humifusa Mary L. Bowerman 1935-9-13 3337 Contra Costa Mount Diablo, Hidden Pond Hidden Pond; Mount Diablo, Hidden Pond Comment
  JEPS107132  Cytisus scoparius Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14678 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay, northeast corner of area. Comment
  CAS-BOT-BC198197  Cytisus striatus R. Leen 1986-7-10 s.n. Contra Costa Alvarado Canyon, East Bay Regional Park Comment
  UCD60458  Danthonia californica G. L. Stebbins Jr. 1939-5-24 2714 Contra Costa Opposite Berkeley Country Club. Comment
  CDA1575  Danthonia californica var. californica D. G. Kelch 2002-5-24 2 .02 Contra Costa Carquinez Strait; Crockett. On hill S of San Pablo Ave ~0.4 miles W of Carquinez Bridge. Comment
  UC1790262  Datura stramonium Rudolf Schmid 2005-8-15 2005 -2 Contra Costa 16 Edwin Fr., Kensington, CA 94707-1022 169 Comment
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Apr 2 2012
  JEPS75509  Daucus pusillus P. F. Yorks 1974-6-8 173 Contra Costa n. Briones Reservoir (ca. 1.6 km. s. of Bear Creek Rd. on Hampton Rd. in Hampton Rd. Natural Reserve); Hampton Rd. Natural Reserve 180 Comment
  RSA216745  Deinandra bacigalupii Robert F. Hoover 1969-8-29 11564 Contra Costa Raymond Road and Ames Street, Livermore Valley. Comment
  CAS-BOT-BC287375  Deinandra corymbosa H. M. Hall 1914-8-23 9862 Contra Costa Giant 22 Comment
  UCD36025  Deinandra corymbosa Beecher Crampton 1949-6-5 470 Contra Costa along Highway 40, Pinole to San Pablo, above Garrity Creek, on top of West Hills. 30 Comment
  CAS-BOT-BC294022  Deinandra kelloggii K. Brandegee 1907-5-5 s.n. Contra Costa Near Antioch Comment
  CAS-BOT-BC294025  Deinandra kelloggii James I. McMurphy 1909-5-21 s.n. Contra Costa Antioch Comment
  UC88930  Deinandra kelloggii unknown 1883-7-1 Contra Costa Antioch Comment
  CAS-BOT-BC291809  Deinandra lobbii David D. Keck 1933-11-2 2615 Contra Costa 1 mi. E. of Nichols, N. Contra Costa County Comment
  JEPS111750  Delairea odorata D. G. Kelch 2005-4-15 05 .140 Contra Costa Rodeo Creek EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump) 220 Comment
  UC691948  Delphinium californicum Mary L. Bowerman 1935-5-30 3091 Contra Costa rock slide Mount Diablo, Eagle Point Ridge 350 Comment
  JEPS6242  Delphinium californicum subsp. interius W. L. Jepson 1921-11-19 9523 Contra Costa s slope Mount Diablo (chamise ridge) Comment
  POM300586  Delphinium hesperium Mary L. Bowerman 1931-5-2 786 Contra Costa Foot of Eagle Point ridge: Grassy slope at edge of wooded hill Comment
  JEPS6231  Delphinium hesperium subsp. hesperium Willis L. Jepson May 23-24 1891 21394 Contra Costa Mt. Diablo Comment
  UC692084  Delphinium hesperium subsp. hesperium Mary L. Bowerman 1938-5-25 3635 Contra Costa s-facing slope above North Road 2.1 mi from North Gate; Mount Diablo 182 Comment
  SEINET11268200  Delphinium hesperium subsp. hesperium Barbara Ertter 1998-5-13 16137 Contra Costa In hills south of Pittsburg, head of SE branch of Loughler Loop Trail.; 0 305 Comment
  UC1795768  Delphinium hesperium subsp. hesperium Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14242 Contra Costa South side Mount Diablo, edge of open meadow in flats near head of Curry Creek along road to Sheepherders Springs from Sloan Road; mixed grassland on north-facing slope. 426 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
  UC691950  Delphinium nudicaule Mary L. Bowerman 1933-6-14 2284 Contra Costa bottom of second gully w north spur; Mount Diablo, Inner Black Hills Comment
  UCD102398  Delphinium patens 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
  CAS-BOT-BC116451  Delphinium patens subsp. patens H. L. Mason; Robert Ornduff 1957-4-11 10620 Contra Costa Curry Canyon 3.4 miles s. of Recreation Ground Comment
  CAS-BOT-BC116456  Delphinium patens subsp. patens J. T. Howell 1933-5-14 11279 Contra Costa Hills east of St. Mary's College Comment
  CHSC24924  Delphinium patens subsp. patens M. A. Callahan 1976-4-12 5 Contra Costa On ne slope 90 m s of roadhead on Mohawk Dr. Pleasant Hill. Comment
  UC1819000  Delphinium patens subsp. patens Barbara Ertter, Tom Delendick 1996-5-2 14614 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
  UC1084394  Delphinium patens subsp. patens G. Thomas Robbins 1937-4-25 141 Contra Costa hillside e La Vista Comment
  UC2027926  Delphinium patens subsp. patens Barbara Ertter with Linda Vorobik 2001-3-24 17571 Contra Costa Lime Ridge Open Space east of Walnut Creek, eastern edge overlooking Crystal Springs subdivision. Comment
  HSC47893  Delphinium recurvatum Carl Epling, G. Miles 1945-3-23 542 Contra Costa 5 miles west of Tracy-Byron road on road to Byron Hot Springs Comment
Read comments
Aug 17 2011
  JEPS5529  Delphinium recurvatum R. F. Hoover 1938-3-25 2900 Contra Costa Byron Hot Springs Comment
  UC1314933  Delphinium recurvatum R. F. Hoover 1967-4-28 10511 Contra Costa Byron Hot Springs Comment
  UCSB11260  Delphinium variegatum Hayes, Judy 1961-3-30 Contra Costa South Gate of Mount Diablo State Park 182 Comment
  CAS-BOT-BC16940  Delphinium variegatum subsp. variegatum Alice Eastwood 1914-3-14 3790 Contra Costa Byron Springs Comment
  CAS-BOT-BC192678  Deschampsia danthonioides Ira L. Wiggins 1930-4-17 4576 Contra Costa 1/4 mi S. of Byron Comment
  RSA0029050  Deschampsia elongata Barbara Ertter 1999-6-12 16710 Contra Costa Black Hawk Ridge road on south side of Mount Diablo, road crossing at confluence of NE and E forks of Sycamore Creek. 396 Comment
  UC199816  Dicentra chrysantha V. King Chesnut 1887-9-10 Contra Costa Mt. Diablo Comment
  UC692102  Dicentra chrysantha Mary L. Bowerman 1932-9-3 1529 Contra Costa Muir Area; Mount Diablo Comment
  UC1300933  Dichelostemma capitatum Helen K. Sharsmith 1962-3-25 4909 Contra Costa hills between Happy Valley and Alhambra Valley; San Francisco Bay Region 304 Comment
  CAS-BOT-BC500075  Dichelostemma capitatum Barrett Anderson 1987-4-30 3503 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole Dam site for EBMUD. 125 Comment
  CAS-BOT-BC500087  Dichelostemma capitatum James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  POM276989  Dichelostemma capitatum subsp. capitatum Lyman Benson 1931-3-18 2665 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 Comment
  UC1948965  Dichelostemma capitatum subsp. capitatum William J. Ferlatte, L. Maynard Moe 1970-4-27 1250 Contra Costa San Francisco Bay: Red Rock Island Comment
  JEPS112500  Dichelostemma congestum D. G. Kelch 2004-4-11 04 .71 Contra Costa Crockett - Bull Valley. EBRPD. Between Crockett and Port Costa 25 Comment
  CAS-BOT-BC502555  Dichelostemma congestum John Thomas Howell 1933-5-14 11258 Contra Costa Hills east of St. Mary's College Comment
  JEPS121009  Digitaria sanguinalis D. G. Kelch 2006-9-6 06 .469 Contra Costa Elkhorn Creek, E of Crockett Comment
  CAS-BOT-BC150329  Diplacus aurantiacus Alice Eastwood 1915-5-30 4455 Contra Costa Mt. Diablo Comment
  CHSC39486  Diplacus aurantiacus Tyler Williams 1984-4-18 24 Contra Costa Ca. 20 yd nw of Bridal Nook Picnic Area on e side of South Park Rd., in Mt. Diablo State Park. 533 Comment
  CAS-BOT-BC153952  Diplacus rattanii Alice Eastwood 1915-5-30 4542 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC121839  Dirca occidentalis Walter Knight; Irja Knight 1967-1-24 2057 Contra Costa Tilden Regional Park, near little train Comment
  CHSC22236  Dirca occidentalis Robert A. Schlising 1962-2-21 2079 Contra Costa Berkeley-Oakland hills of westernmost part of county. Comment
  UC565411  Dirca occidentalis Chas. M. Belshaw 1935-3-3 372 Contra Costa shallow draw on ne face Bald Peak; San Pablo Reservoir Comment
  UC872740  Dirca occidentalis Lewis S. Rose 1939-1-24 39002 Contra Costa head of Wildcat Canyon Berkeley Hills 426 Comment
  OBI78486  Dirca occidentalis A. Kay Ketcham 1968-3-21 16 Contra Costa Approx 300 yds S of Neil Havlik #88 at the S end of Charles Lee Tilden Regional Park Comment
  SEINET6957397  Dirca occidentalis Lorin I. Nevling 1996-2-15 342 Contra Costa Tilden Regional Park, Regional Parks Botanical Garden. Cultivated plant grown from seed from Crockett Road, south of Crocket (see Accession card). "Western Leatherwood." Comment
  UCSB27473  Dirca occidentalis Havlik, Neil 1969-7-10 Contra Costa Along the West Ridge Trail about one-half mile from Skyline Gate, Redwood Regional Park, Oakland Hills 396 Comment
  CDA37339  Dittrichia graveolens D. G. Kelch 2010-10-31 10 .444 Contra Costa Valley north of Alhambra Valley Rd., south of Pinole Peak, east of Hercules. Comment
  CHSC99232  Dittrichia graveolens John Dittes 2006-10-26 1412 Contra Costa San Joaquin Valley (foothills near nw edge); ca. 2.0 air miles south of Marsh Creek Gauging Station, 1.6 air miles south of Marsh Creek Reservoir Gauging Station, 1.6 air miles southwest of Intersection of Camino Diablo and Vasco Road; Contra Costa Water District's Los Vaqueros Watershed Mitigation Project Area. 67 Comment
Read comments
Aug 22 2009
  UC673358  Dodecatheon clevelandii subsp. patulum Herbert L. Mason 1925-2-28 1260 Contra Costa 1/2 mi e Rodeo; e of Rodeo Comment
  HSC101959  Dodecatheon hendersonii Nikolaus Gillen, Michelle Bihler 2014-3-20 11 Contra Costa Mount Diablo State Park. Eagle Peak Trail. 649 Comment
  UC1618109  Dodecatheon hendersonii Donald G. Nelson 1937-3-30 461 Contra Costa Along Marsh Creek Road between Clayton and Byron Comment
  UC22416  Dodecatheon hendersonii J. Burtt Davy 1896-2-29 1266 Contra Costa Mitchell Canyon Mt. Diablo, Mitchell Canyon Comment
  UC1046584  Dodecatheon hendersonii Alex D. Hawkes and R. Bacigalupi 1951-4-22 4777 Contra Costa State Rd. #4 near Mt. Diablo (along Marsh Creek); , near Mt. Diablo Comment
  POM287494  Dodecatheon hendersonii subsp. cruciatum Lyman Benson 1931-3-18 2666 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 Comment
  POM181468  Downingia insignis I. L. Wiggins 1930-4-17 4570 Contra Costa 1/4 mi. S. of Byron. Comment
  OBI48705  Downingia ornatissima Lewis S. Rose 1940-4-30 40258 Contra Costa 4 mi S of Antioch 30 Comment
  UC2027994  Draba verna Barbara Ertter with Tony Morosco 1998-4-12 16024 Contra Costa Mount Olympia on north side of Mount Diablo, midway down Olympia Road from summit. Comment
  SEINET5718195  Drimys winteri Shirley C. Tucker 1955-1 6088 B Contra Costa University of California Botanic Garden, Berkeley.; UC Botanic Garden Comment
  CAS-BOT-BC159645  Drymocallis glandulosa var. glandulosa David D. Keck 1941-6-5 5308 Contra Costa Berkeley Hills, Fish Creek Road, 1/4 mi. W. of east portal of Broadway Tunnel 335 Comment
  CDA42719  Dryopteris arguta A. G. Murdock 2004-2-12 205 Contra Costa Franklin Canyon - McHarry Ranch Road. Comment
  CDA42720  Dryopteris arguta A. G. Murdock 2004-2-12 205 Contra Costa Franklin Canyon - McHarry Ranch Road. Comment
  UC1513979  Dryopteris arguta Joseph Andorfer Ewan 1934-3-10 8639 Contra Costa 1 mi below Orinda rd Wildcat Canyon Comment
  UC606763  Dryopteris arguta Edward Lee 1936-4-19 1981 Contra Costa e slope Red Rock; San Francisco Bay Comment
  RSA0068493  Dryopteris arguta Katie Gallagher, Nick Jensen 2014-4-26 181 Contra Costa Las Trampas Regional Wilderness. 365 Comment
  UC692560  Dudleya cymosa subsp. paniculata Mary L. Bowerman 1931-6-17 925 Contra Costa e side Riggs Canyon Comment
  UC1606408  Dudleya farinosa Barbara Ertter 1992-7-25 11261 Contra Costa s end Point Richmond (near Brickyard Landing, above rr tracks) Comment
  UC2028504  Echinochloa colona Barbara Ertter with Mary Bowerman, Lisa Schultheis 1998-8-21 16403 Contra Costa North Gate Road on west side of Mount Diablo, 0.7 miles below Diablo Ranch Comment
  CAS-BOT-BC197106  Echinochloa crus-galli R. E. Frenkel 1963-8-23 274 Contra Costa On the lot in front of Market Plaza Center on Highway 21, Alamo 79 Comment
  RSA0029360  Echinochloa crus-galli Barbara Ertter 1996-11-24 15421 Contra Costa West side of Mount Diablo, upstream from Pine Pond along Stage Road in Pine Canyon, floodplain at junction with Dusty Road. Comment
  CDA2007  Echinochloa crus-galli var. crus-galli D. G. Kelch, A. G. Murdock 2003-8-13 3 .121 Contra Costa Carquinez Strait Region; Martinez Marsh 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
  CAS-BOT-BC197293  Ehrharta erecta Catherine Best 1990-6-3 s.n. Contra Costa On Ralston Ave. in the hills above Richmond Comment
  CAS-BOT-BC211459  Elaeagnus angustifolia Dr. E. C. Van Dyke 1941-10-4 s.n. Contra Costa River bank east of Antioch Comment
  RSA721534  Eleocharis acicularis var. acicularis Mary L. Bowerman 1975-9-14 s.n. Contra Costa Mount Diablo. Comment
  CDA38938  Eleocharis macrostachya D. G. Kelch 2005-3-24 5 .062 Contra Costa Carquinez Strait Region; Southern Point Pinole. Comment
  JEPS111879  Eleocharis macrostachya A. G. Murdock 2004-4-30 250 Contra Costa McEwen Road West side of road in boggy wetland. 130 Comment
  CAS-BOT-BC112794  Eleocharis macrostachya Barrett Anderson 1987-4-29 3484 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD. 125 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
  RSA0027647  Eleocharis palustris Barbara Ertter 1998-5-3 16062 Contra Costa area of Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. Below road SE of ponds. 274 Comment
  SEINET3558852 Image available Ellisia membranacea Lewis S. Rose 1933-3-10 33011 Contra Costa Brentwood. Comment
  UC756632  Elymus G. L. Stebbins Jr. 1946-6-9 3657 Contra Costa 2 mi e El Cerrito (near Mira Vista Country Club) Comment
  POM205573  Elymus X gouldii Jos Burtt Davy 1898-05 1742 Contra Costa Port Costa, on a steep bank Comment
  UC2070620  Elymus caput-medusae Barbara Ertter with John Ginochio 2002-6-1 17946 Contra Costa Castle Rock Park at mouth of Pine Canyon, NW foot of Mount Diablo. Comment
  CDA1574  Elymus glaucus D. G. Kelch 2002-5-24 2 .017 Contra Costa Carquinez Strait; 5th St. Prairie, Crockett. Comment
  UC766736  Elymus glaucus R. F. Hoover 1941-5-19 5105 Contra Costa Claremont Rd Berkeley Hills (e side of hills) Comment
  UC691206  Elymus glaucus Mary L. Bowerman 1933-5-3 1988 Contra Costa Mountain Springs Canyon Mount Diablo (at trough for deer (later Pioneer fire rd was built across canyon at this spot), 3 ft from stream) Comment
  UC53737  Elymus multisetus Jos. Burtt Davy 1900-6-7 6651 Contra Costa San Pablo Ridge Comment
  UC691171  Elymus multisetus Mary L. Bowerman 1938-6-24 3690 Contra Costa Canyon Nook Mount Diablo (e side of creek) 670 Comment
  UC2028480  Elymus multisetus Barbara Ertter with Richard K. Brummitt 1998-5-6 16103 Contra Costa Point San Pablo west of Richmond, crest of road to yacht harbor Comment
  UC756651  Elymus trachycaulus G. L. Stebbins Jr. 1946-6-9 3652 Contra Costa 2 mi e El Cerrito (near Mira Vista Country Club) Comment
  UC1819004  Elymus trachycaulus subsp. trachycaulus Barbara Ertter, Mary L. Bowerman 1994-6-19 12855 a Contra Costa Mt. Diablo State Park east of Walnut Creek; scrub oak thicket north of road, north of lower summit parking lot, next to drainage on north facing slope. Comment
  UC2028385  Elymus triticoides Barbara Ertter 1998-6-20 16255 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, wet margin of Willow Spring Pond south of Ginder Gap Comment
  CDA38092  Epilobium canum A. G. Murdock 2003-9-12 197 Contra Costa Carquinez Strait Region; Crockett - Tormey Headlands. At Superfund overlook. 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
  CAS-BOT-BC166167  Epilobium canum subsp. canum N. Floy Bracelin 1941-8-17 1567 Contra Costa In Berkeley Hills Comment
  JEPS22431  Epilobium cleistogamum Mary K. Curran May 1886 Contra Costa near Antioch Comment
  UC19940  Epilobium densiflorum Bolander 6403 Contra Costa Mt. Diablo Comment
  UC615553  Epilobium densiflorum Beryl O. Schreiber 1933-10-5 936 Contra Costa road to Mount Diablo; marshy ground Comment
  UC4498  Epipactis gigantea F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  CDA31168  Epipactis helleborine D. G. Kelch 2008-9-2 8 .305 Contra Costa Carquinez Strait.; Pinole Valley Park. Comment
  UC1507231  Epipactis helleborine C. J. Sheviak 1983-8-25 2516 Contra Costa along El Toyonal Rd. below Vallecito; Orinda Comment
  UC1050832  Epiphyllum crenatum N. Floy Bracelin 1944-7-2 1338 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  UC692081  Equisetum telmateia subsp. braunii Mary L. Bowerman 1930-8-24 433 Contra Costa Mitchell Canyon near stream Mitchell Canyon; Mt. Diablo 251 Comment
  SEINET11614121  Equisetum telmateia subsp. braunii W. Knight, Knight, I. 1983-1 4771 Contra Costa Berkeley, Tilden Regional Park, botanic garden 305 Comment
  CDA2083  Eragrostis curvula H. R. VanBrocklin 1961-4-12 Contra Costa North side Marsh Creek Road, 1 mile east of Clayton. 0 Comment
  UCD63814  Eragrostis mexicana subsp. virescens Beecher Crampton 1965-9-29 7531 Contra Costa 1 mile south of Oakley, Cypress Road and O' Hara Ave. Comment
  RSA0027416  Eragrostis mexicana subsp. virescens Barbara Ertter 1997-8-24 15777 Contra Costa Mount Diablo, Summit Road just above Junction Station. 671 Comment
  UCD64352  Eragrostis pectinacea var. pectinacea Beecher Crampton 1965-9-29 7529 Contra Costa 2 miles north of Brentwood. Comment
  JEPS103961  Eriastrum ertterae David Gowen 2003-6-14 Contra Costa Lime Ridge Open Space, near transmission tower 280 Comment
  CAS-BOT-BC514610  Eriastrum pluriflorum subsp. pluriflorum T. S. Brandegee 1883-6-1 s.n. Contra Costa Antioch Comment
  UC691866  Ericameria arborescens Mary L. Bowerman 1932-9-17 1583 Contra Costa w fork Donner Canyon (bank between upper forks); Mount Diablo 304 Comment
  POM359374  Ericameria linearifolia H. E. McMinn 1922-6-2 96 Contra Costa Near summit of Mt. Diablo Comment
  UC75068  Ericameria linearifolia C. F. Baker 1903-4-28 2942 Contra Costa Mitchell's Canyon Mt. Diablo, Mitchell's Canyon (Mt. Diablo, open mountain slopes) Comment
  CDA42377  Erigeron foliosus var. franciscensis D. G. Kelch 2012-6-1 12 .095 Contra Costa Carquinez Strait Region; 1 km east of Port Costa in the vicinity of the old brick factory. Comment
  RSA93107  Erigeron petrophilus var. petrophilus H. L. Mason 1923-11-12 853 Contra Costa Low rocky slopes of Mt. Diablo Comment
Read comments
Feb 4 2013
  UC1543059  Erigeron philadelphicus var. philadelphicus Donald G. Nelson 1938-4-24 566 Contra Costa 1 mi n Mount Diablo (Marsh Creek Highway) Comment
  CAS-BOT-BC216075  Eriodictyon californicum W. W. Carruth 1901-5-1 s.n. Contra Costa Moraga Valley Comment
  CAS-BOT-BC248088  Eriogonum angulosum H. M. Hall 1916-8-17 10276 Contra Costa Deer Valley 182 Comment
  UC1789160  Eriogonum fasciculatum Barbara Ertter 2001-9-3 17807 Contra Costa Sibley Volcanic Regional Park, area excavated for water tank on west side of Round Top, basaltic. Comment
  UC1980601  Eriogonum gracile James L. Reveal 1974-8-6 3772 Contra Costa Summit of Mt. Diablo, near lower parking lot west of summit. Comment
  UC6565  Eriogonum gracile var. gracile Edw. L. Greene 1892-6-20 Contra Costa Mount Diablo Comment
  UC692017  Eriogonum gracile var. gracile Mary L. Bowerman 1930-6-7 279 Contra Costa summit of Mount Diablo Mount Diablo Comment
  RSA107410  Eriogonum gracile var. gracile L. S. Rose 1955-10-17 55187 Contra Costa Antioch 15 Comment
  CAS-BOT-BC259139  Eriogonum latifolium John Thomas Howell 1930-7-4 5336 Contra Costa In the north Berkeley Hills Comment
  RSA423119A  Eriogonum luteolum L. S. Rose 1932-6-24 32349 Contra Costa Mt. Diablo 1173 Comment
  UC521769  Eriogonum luteolum var. luteolum Joseph Andorfer Ewan 1933-10-15 8022 Contra Costa sw slope Mt. Diablo Mt. Diablo Comment
  CAS-BOT-BC259522  Eriogonum luteolum var. luteolum Robert F. Hoover 1937-9-2 2714 Contra Costa Lower Marsh Creek canyon Comment
  CAS-BOT-BC268907  Eriogonum nudum var. auriculatum Mary L. Bowerman 1932-9-24 1593 Contra Costa Mount Diablo. Flat-topped ridge above Mitchell Rock 441 Comment
  JEPS75518  Eriogonum nudum var. auriculatum P. F. Yorks 1975-7-18 475 -A Contra Costa ca. 1.7 km s on Hampton Road in Hampton Road Natural Preserve Bear Creek Road (n of Briones Reservoir) 190 Comment
  UC692165  Eriogonum nudum var. auriculatum Mary L. Bowerman 1933-9-3 2425 Contra Costa North Peak ridge Mount Diablo Comment
  CAS-BOT-BC268914  Eriogonum nudum var. auriculatum John Thomas Howell 1929-9-21 4393 Contra Costa On Marsh Creek Road 8 miles se. of Clayton Comment
  UC692153 Image available Eriogonum truncatum Mary L. Bowerman 1936-6-20 3413 Contra Costa Knoll west of Mt. Zion, north end. Comment
  CAS-BOT-BC267870  Eriogonum umbellatum var. bahiiforme H. E. McMinn No date on label. 94 Contra Costa Near summit of Mt. Diablo Comment
  CAS-BOT-BC267873  Eriogonum umbellatum var. bahiiforme Mary L. Bowerman 1930-6-14 328 Contra Costa Mount Diablo Comment
  RSA420628  Eriogonum umbellatum var. bahiiforme Cora Mae Life 1924-07 s.n. Contra Costa Mount Diablo Comment
  CAS-BOT-BC262345  Eriogonum vimineum Joseph Andorfer Ewan 1933-10-15 8022 Contra Costa S.W. slope Mt. Diablo Comment
  CAS-BOT-BC300983  Eriophyllum lanatum var. achilleoides E. E. Stanford 1930-5-24 1513 Contra Costa Marsh Creek Canyon Comment
  JEPS34598  Eriophyllum lanatum var. achilleoides W. L. Jepson 1918-6-3 7577 Contra Costa Mt. Diablo Comment
  UC507126  Eriophyllum lanatum var. achilleoides Lincoln Constance 1933-6-25 E 94 Contra Costa near the se base of Mount Diablo (se slope) Comment
  UC507132  Eriophyllum lanatum var. achilleoides Lincoln Constance 1933-6-25 E 100 Contra Costa north slope near summit Mount Diablo 1097 Comment
  UC62979  Eriophyllum lanatum var. achilleoides H. M. Hall 1901-4-5 1755 Contra Costa Mt. Diablo Comment
  UC691662  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1935-5-30 3097 a Contra Costa Eagle Point ridge = between the two n ridges which converge at Twin Peaks; Mt. Diablo, Eagle Point ridge 350 Comment
  UC691687  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1933-5-3 1979 Contra Costa due s of summit Meridian peak; Mt. Diablo, Meridian Peak 731 Comment
  CAS-BOT-BC300969  Eriophyllum lanatum var. achilleoides John Thomas Howell 1931-5-12 6485 A Contra Costa Marsh Creek Road ne. of Mt. Diablo Comment
  CAS-BOT-BC300971  Eriophyllum lanatum var. achilleoides H. E. McMinn 1922-6-30 98 Contra Costa On way up Mt. Diablo, less 1/2 way up Comment
  CAS-BOT-BC300976  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1938-6-14 3687 Contra Costa Mount Diablo. 0.3 mile below Muir Area 960 Comment
  CAS-BOT-BC300980  Eriophyllum lanatum var. achilleoides L. Constance 1933-6-25 E 97 Contra Costa South slope, 1 mile below summit of Mt. Diablo Comment
  POM301034  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1935-5-22 3065 Contra Costa Most westerly of the two ridged which converge at Twin Peaks (Eagle Point Ridge) 366 Comment
  UC134928  Eriophyllum lanatum var. achilleoides Katharine Brandegee 1907-6-16 Contra Costa hills near Antioch Comment
  UC1252143  Eriophyllum staechadifolium Dr. Jerry Powell 1964-6-7 412 Contra Costa nw Richmond; Point Molate Comment
  UC1584825  Eriophyllum staechadifolium Jerry Powell 1987-7-14 1504 Contra Costa sandstone bluff and back edge of point Molate Beach Comment
  CDA29765  Erodium botrys D. G. Kelch, Troy MacGregor 2009-5-1 9 .266 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  JEPS61371  Erodium botrys Miss Linda Gehringer 1914-3-29 Contra Costa Brentwood Comment
  HSC8469  Erodium botrys Greg Bos 1963-3-15 40 Contra Costa Albany Hill, Albany 9 Comment
  UC1948936  Erodium cicutarium William J. Ferlatte, L. Maynard Moe 1970-4-27 1263 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC1130310  Erodium macrophyllum C. M. Belshaw 1936-5-15 2126 Contra Costa 1.75 mi ne Somerville; Mt. Diablo Quad. 152 Comment
  JEPS15863  Eryngium aristulatum var. aristulatum W. L. Jepson 1894-9-7 14282 Contra Costa foot of sharp canyon e. of Bald Peak at Orinda; Berkeley Hills 121 Comment
  JEPS15973 Image available Eryngium aristulatum var. aristulatum W. L. Jepson 1895-9-7 14275 Contra Costa Orinda Park; ; Orinda Park, Contra Costa Co. 121 Comment
  JEPS111605  Eryngium jepsonii D. G. Kelch 2003-6-22 03 .91 Contra Costa Port Costa - Shore. Above Pt. Costa (above road between McEwen and EBRP staging area). 65 Comment
  UCD77691  Eryngium spinosepalum Robert E. Preston 2000-8-6 1432 Contra Costa 2 mi se of Byron Hot Springs, on w side of Byron Hot Springs Rd. 12 Comment
  UC1190972  Eryngium vaseyi Lincoln Constance, Reino Alava and Rimo Bacigalupi 1958-6-6 3661 Contra Costa 3 mi. s.e. Byron; San Joaquin Valley 10 Comment
  CAS-BOT-BC40765  Erysimum capitatum Alice Eastwood; John Thomas Howell 1936-4-19 2151 Contra Costa Antioch sand hills. Comment
  CAS-BOT-BC40768  Erysimum capitatum G. B. Rossbach; R. P. Rossbach 1938-6-5 858 a Contra Costa Along tidal estuary of San Joaquin River just east of Antioch. Comment
  UC1126603  Erysimum capitatum C. M. Belshaw 1936-5-8 2053 A Contra Costa se slope Mt. Diablo Quadrangle, Mt. Diablo (Plot 5) Comment
  CAS-BOT-BC40773  Erysimum capitatum Walter Knight 1965-3-1 s.n. Contra Costa Antioch. Comment
  NY32656  Erysimum capitatum subsp. angustatum A. Eastwood 1936-4-19 2151 Contra Costa Antioch sand hills. Comment
  POM224444  Erysimum capitatum var. angustatum Alice Eastwood, J. T. Howell 1936-4-19 s.n. Contra Costa Antioch Comment
  RSA39907  Erysimum capitatum var. angustatum P. A. Munz 1947-10-8 12205 Contra Costa Antioch 8 Comment
  RSA0008588  Erysimum capitatum var. angustatum G. B. Rossbach, Ruth P. Rossbach 1938-6-5 858 Contra Costa Along tidal estuary of San Joaquin River, just east of Antioch Comment
  UC10540  Erysimum capitatum var. capitatum J. Burtt Davy 1895-4-7 876 Contra Costa Antioch; ; Type locality of Cheiranthus angustatus Greene Comment
  UC10565  Erysimum capitatum var. capitatum J. Burtt Davy 1895-4-7 996 Contra Costa foothills Antioch Comment
  RSA101891  Erysimum capitatum var. capitatum G. B. Rossbach, Ruth P. Rossbach 1938-6-5 859 Contra Costa Near summit of Mt Diablo. Comment
  JEPS51717  Eschscholzia caespitosa Edw. L. Greene 1888-3-25 Contra Costa Byron Comment
  UC10069  Eschscholzia californica Edw. L. Greene 1893-6-20 Contra Costa Mt. Diablo Comment
  HSC16752  Eschscholzia californica Greg Bos 1963-3-15 39 Contra Costa Albany Hill, Albany 15 Comment
  PASA450  Eschscholzia californica Annetta Carter 1929-3-31 Contra Costa Near Clayton. Hills north of Mt. Diablo Comment
  UC692191  Eschscholzia californica Mary L. Bowerman 1930-6-28 386 Contra Costa near road above junction; Mount Diablo Comment
  CAS-BOT-BC91576  Eschscholzia rhombipetala Brandegee 1889-4-1 s.n. Contra Costa Antioch. Comment
  CAS-BOT-BC91582  Eschscholzia rhombipetala K. Curran 1887-6-1 s.n. Contra Costa Antioch. Comment
  UC1789208  Eucalyptus tereticornis Barbara Ertter 2000-5-20 17026 Contra Costa Sibley Volcanic Regional Preserve, Oakland Hills, trail on ridge behind interpretative center. Common tree, bark flaking, flowers white, only trees largest starting to bloom (hence open flowers out of reach). Comment
  JEPS87981  Eucrypta chrysanthemifolia Barbara Ertter 1991-6-1 10078 Contra Costa hills w Danville (e side of Wind Caves on Sycamore Trail to Devil's Hole); Las Trampas Regional Wilderness, Wind Caves 548 Comment
  UC592185  Eucrypta chrysanthemifolia var. chrysanthemifolia H. L. Mason 1925-3-10 1292 Contra Costa Mount Diablo Comment
  UC2032815  Euphorbia lathyris Doran, Andrew Scott 2012-3-20 685 Contra Costa North end of Brooks Island along ridge, cleared area northwest of caretakers residence. Garden waste area. Comment
  CDA18900  Euphorbia oblongata V. Guise 2000-5-22 PDR 031724 Contra Costa East side of Bollinger Canyon Rd., San Ramon. 0 Comment
  CDA7731  Euphorbia oblongata Deviney 2008-4-18 PDR# 1454510 Contra Costa Carquinez Strait; Pacheco, Waterbird Way X Hwy 680 0 Comment
  UCR247571  Euphorbia oblongata Deviney 2008-4-18 s.n. Contra Costa Pacheco, Waterbird Way and Hwy 680 Comment
  CDA4843  Euphorbia oblongata T. C. Fuller 1961-7-6 6585 Contra Costa Carquinez Strait; Alhambra Valley, Highway 4, 0.5 mile west of Glen Frazier Station, ca. 4 miles west of Martinez. 0 Comment
  RSA600234  Euphorbia oblongata L. C. Wheeler 1958-8-26 7446 Contra Costa Ca. 2 mi. southwest of Martinez, 0.3 mi. northwest of Glen Frazer on Santa Fe; apparently Franklin Canyon/ 1.7 mi. west of Martinez at limit on California Route 4. Comment
  UCD142410  Euphorbia oblongata Thomas C. Fuller 1958-7-30 s.n. Contra Costa State Highway 4; 3 miles west of Martinez. Comment
  UC2062611  Euphorbia spathulata Barbara Ertter 2003-3-28 18134 Contra Costa Round Valley Regional Preserve, mid Hardy Canyon along High Creek. Comment
  CDA4937  Euthamia occidentalis Niang, Jeffery 2007-8-1 PDR# 1455280 Contra Costa Concord; Canal at Walnut Ave, near Clayton Rd. Comment
  CDA5288  Euthamia occidentalis D. G. Kelch 2004-9-2 4 .333 Contra Costa Carquinez Strait Region; Pacheco Marsh. Marsh east of Martinez and I-680 and east of lone tree Marsh. Comment
  UC202854  Euthamia occidentalis V. King Chesnut 1887-9-10 Contra Costa Mt. Diablo Comment
  JEPS118744  Extriplex joaquinana Sarah Lynch 2012-8-1 s. n. Contra Costa Tassajara Valley (south of Danville); north of Camino Tassajara and west of Finley Road Comment
  JEPS48472  Festuca californica W. L. Jepson 1943-5-27 20842 Contra Costa n side Black Hills; Mt. Diablo Comment
  UC2032820  Festuca myuros Doran, Andrew Scott 2012-3-20 690 Contra Costa North end of Brooks Island along ridge overlooking artificial spit, southwest of caretakers residence. Comment
  JEPS107107  Festuca rubra Barbara Ertter, Brad Olson 1994-5-7 12752 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  JEPS41063  Festuca rubra Rimo Bacigalupi, and L. R. Heckard 1965-5-11 9088 Contra Costa sw of Richmond; San Francisco Bay, Brooks Island Comment
  UC691117  Fragaria vesca Mary L. Bowerman 1931-3-29 623 Contra Costa n-face East Cave Point Ridge; Mount Diablo Comment
  SEINET7417539 Image available Frangula californica subsp. californica L. J. Musselman 1970-7-26 3769 Contra Costa W slope of Mount Diablo 1067 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-BC223392  Fraxinus dipetala H. E. McMinn 1922-10-1 407 Contra Costa Mitchell Canon [Canyon], Mt. Diablo Comment
  POM300728  Fraxinus dipetala Mary L. Bowerman 1930-6-22 363 Contra Costa Mount Diablo: Mitchell Canyon Comment
  UC2027778  Fraxinus dipetala Barbara Ertter with Holly Forbes 1997-4-20 15561 Contra Costa North base of Mount Diablo, Eagle Peak Trail on NE side of Eagle Ridge below Twin Peaks. Comment
  CDA39689  Fraxinus latifolia D. G. Kelch 2003-8-13 3 .143 Contra Costa Carquinez Strait; Pinole Creek. Comment
  JEPS112503  Fritillaria affinis A. G. Murdock 2004-4-30 262 Contra Costa Vaca Canyon 165 Comment
  CAS-BOT-BC136075  Fritillaria affinis Mary L. Bowerman 1932-3-23 1129 Contra Costa Tiny canyon east of Donner Canyon - Mt. Diablo 274 Comment
  UC1134594  Fritillaria biflora C. M. Belshaw 1936-5-12 2108 Contra Costa 5 mi s of Round Valley 487 Comment
  JEPS99505  Fritillaria liliacea Mary Bowerman 1979-4-3 Contra Costa Mount Diablo, Shell Ridge. Comment
  UC13831  Fritillaria liliacea J. P. Tracy 1900-3-24 612 Contra Costa near Point Richmond (San Francisco Bay Region); San Francisco Bay Region 3 Comment
  CAS-BOT-BC130352  Fritillaria liliacea 1902-3-1 s.n. Contra Costa Danville Comment
  UCR160111  Fumaria capreolata M. I. Wibawa 2003-3-1 331 Contra Costa San Francisco Bay Region, along sidewalk on corner of Junction Ave. and Hagen Blvd., El Cerrito 44 Comment
  JEPS7030  Galium andrewsii subsp. gatense W. L. Jepson 1918-6-5 7606 Contra Costa summit North Peak Mt. Diablo 1066 Comment
  JEPS99947  Galium aparine S. O'Neil 2003-3-11 SEO 15 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1614104  Galium californicum Charles M. Belshaw 1935-6-24 786 Contra Costa Bald Peak ca. 1/2 mi. e. Grizzly Peak; Bald Peak Comment
  LA208411  Galium californicum Joseph Andorfer Ewan; 1935-5-26 9299 Contra Costa Tufts in rock crevices and about outcrops. E slope Bald Peak, San Pablo Ridge 548 Comment
  JEPS14516  Galium californicum subsp. californicum L. T. Dempster 1956-6-1 1007 Contra Costa 15 El Toyonal Orinda Comment
  UC691534  Galium californicum subsp. californicum Mary L. Bowerman 1931-5-21 883 Contra Costa ridge w Curry-Cave Point Trail; Mount Diablo 533 Comment
  UC2028299  Galium californicum subsp. californicum Barbara Ertter with Susan D'Alcamo 1998-6-12 16202 Contra Costa Along Curry Canyon Road on south side of Mount Diablo, halfway between Knobcone Point Road and Sheepherder Springs Trail. Comment
  JEPS23262  Galium divaricatum G. Thomas Robbins 1959-5-23 4031 Contra Costa hillslope about one-half mi e Point San Pablo (overlooking San Pablo Bay); Richmond 7 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
  JEPS99946  Galium murale G. Smick 2003-4-3 GAS 163 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC703118  Galium murale John Thomas Howell 1942-4-26 16953 Contra Costa Redwood Canyon Oakland Hills Comment
  RSA666412  Galium murale Barbara Ertter, Chris Thayer 1993-5-7 11715 Contra Costa Ca 1/2 mile N of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land E of Tilden Park. Grazing land on lower slopes S of Wildcat Canyon Road. Comment
  UC2027970  Galium parisiense Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15660 Contra Costa North base of Mount Diablo, lower end of Mitchell Canyon. Comment
  UC28251  Galium porrigens Edw. L. Greene 1892-6-20 Contra Costa Mt. Diablo Comment
  JEPS41059  Galium porrigens var. porrigens Rimo Bacigalupi and L. R. Heckard 1965-5-11 9086 Contra Costa se Richmond; San Francisco Bay, Brooks Island 30 Comment
  UC1562738  Galium porrigens var. porrigens Barbara Ertter with John Little 1989-4-2 8106 Contra Costa n end El Cerrito, Hillside Park (level portions of old road) Comment
  UC1051202  Galvezia speciosa N. Floy Bracelin 1944-6-6 2717 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  CAS-BOT-BC304345  Gamochaeta pensylvanica Gordon H. True 1975-6-4 7869 Contra Costa Tilden Regional Park Botanic Garden, Tilden Regional Park, Wildcat Canyon, Berkeley Comment
  CAS-BOT-BC303370  Gamochaeta ustulata Gordon H. True 1975-6-27 7872 Contra Costa Tilden Regional Park Botanic Garden, Wildcat Canyon Comment
  CAS-BOT-BC200634  Garrya elliptica John Thomas Howell 1925-9-12 1437 Contra Costa Oakland Hills at head of San Leandro Canyon Comment
  UC21587  Garrya elliptica Willis L. Jepson 1892-3-5 Contra Costa Redwood Peak Comment
  UC565414  Garrya elliptica Chas. M. Belshaw 1935-12-26 1420 Contra Costa upper Redwood Canyon; Oakland and Berkeley Hills Comment
Read comments
Aug 9 2011
  CAS-BOT-BC200628  Garrya elliptica H. E. McMinn 1925-1-30 1397 Contra Costa Thornhill Gulch, Oak. Hills Comment
  UC1795673  Garrya flavescens Barbara Ertter, Holly Forbes 1996-2-11 14549 Contra Costa North side Mount Diablo; Murchio Gap on Median Ridge Road, chaparral on serpentine-derived clay; regrowth after burn of several years previous 731 Comment
Read comments
Aug 17 2011
  CAS-BOT-BC169948  Garrya fremontii Lewis S. Rose 1954-6-29 54084 Contra Costa Mt. Diablo, summit 1170 Comment
  POM203166  Garrya fremontii L. S. Rose 1934-2-28 34041 Contra Costa Summit of Mt. Diablo. Comment
  CAS-BOT-BC282607  Gastridium phleoides Virginia E. Long 1933-6-14 224 a Contra Costa Curry Cave Trail, Mt. Diablo 457 Comment
  POM300684  Gastridium phleoides Mary L. Bowerman 1933-6-14 2272 Contra Costa Curry Cave Canyon: Ridge between two main forks. Mount Diablo. Comment
  UC691264  Gastridium ventricosum Mary L. Bowerman 1932-11-19 1664 Contra Costa Alder Spring (Mountain Springs Canyon--In 1936 beneath fire trail e from Pioneer Camp) Mount Diablo; , Alder Spring Comment
  UC17128  Geranium dissectum W. H. Brewer 1862-4-26 998 Contra Costa 6 mi w Martinez Comment
  UCD103388  Geranium dissectum Ernest C. Twisselmann 1959-4-8 5022 Contra Costa Edmunds Native Plant Nursery, Danville. Shandon, CA. 45 Comment
  CDA29060  Geranium molle D. G. Kelch 2006-5-7 6 .154 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  UC1300816  Geranium molle Helen K. Sharsmith 1962-4-18 4956 Contra Costa Reliez Valley Road San Francisco Bay Region 152 Comment
  CHSC102194  Geranium rotundifolium Barbara Ertter 1996-6-4 14684 Contra Costa Tilden Regional Park in hills east of Berkeley, restoration site northeast of junction of Grizzly Peak boulevard and GolF Course Drive. Comment
  HSC98492  Geranium rotundifolium Barbara Ertter 1996-6-4 14684 Contra Costa Tilden Regional Park in hills E of Berkeley, restoration site NE of junction of Grizzly Peak Blvd. and Golf Course Dr. Comment
  SEINET12343273  Gilia Ottley 1920-3-6 210 Contra Costa Black Hills, San Francisco Bay region Comment
  RSA48957  Gilia achilleifolia Verne Grant, Alva Grant 1948-5-15 8504 Contra Costa Morage ridge, Oakland Hills, near Contra Costa-Alameda county line Comment
  UC908901  Gilia achilleifolia subsp. achilleifolia Herbert L. Mason 1938-5-3 11753 Contra Costa trail between Juniper Camp and Deer Flat (Mount Diablo); , trail bet Juniper Camp and Deer Flat 990 Comment
  SBBG28032  Gilia achilleifolia subsp. achilleifolia V. Grant, A. Grant 1948-5-15 8505 Contra Costa Sacramento Northern Railway embankment, Moraga Cyn, Oakland hills Comment
  UC517980  Gilia capitata subsp. staminea Lewis S. Rose 1933-4-17 33090 Contra Costa Antioch Comment
  UC908108  Gilia capitata subsp. staminea Herbert L. Mason 1929-3-31 5159 Contra Costa Antioch; San Joaquin River Comment
  UC2062650  Gilia capitata subsp. staminea Barbara Ertter 2001-3-18 17566 Contra Costa Shell Ridge Open Space SW of Walnut Creek, west end of Ridge Top Trail. Comment
  UC691677  Gilia clivorum Mary L. Bowerman 1935-4-19 2858 Contra Costa near Turtle Rock (dry hillside on opposite side of road); Mount Diablo, near Turtle Rock 457 Comment
  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
  UC908353  Gilia clivorum Herbert L. Mason 1938-5-3 11752 Contra Costa trail between Juniper Camp and Deer Flat (Mount Diablo); , btw Juniper Camp and Deer Flat 990 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
  UC2028156  Gilia clivorum Barbara Ertter 1998-4-4 15955 Contra Costa Shell Ridge Open Space northwest of Mount Diablo. Comment
  JEPS85959  Gilia tricolor subsp. tricolor A. L. Grant 1915-3-14 Contra Costa Antioch Comment
  CAS-BOT-BC266488  Githopsis diffusa R. Bacigalupi 1927-5-13 1569 Contra Costa Along Danville - Mount Diablo Road near Garden of the Jungle Gods 518 Comment
  JEPS28828  Githopsis diffusa subsp. robusta L. R. Heckard with P. Silva, R. Tucker 1962-4-22 1302 Contra Costa Lookout Point Picnic Area Mt. Diablo State Park 731 Comment
  SEINET10464620  Githopsis specularioides Bowerman 1935-5-18 BOWERMAN 3034 Contra Costa Meridian Peak north of the summit parking area 1067 Comment
  CDA983  Glyceria declinata D. G. Kelch 2002-5-4 2 .01 Contra Costa East Bay; Wildcat Canyon Park. Comment
  RSA721589  Gnaphalium luteoalbum Mary L. Bowerman 1978-6-24 s.n. Contra Costa Mount Diablo. Mitchell Creek, below 'reservoir' 191 Comment
  CAS-BOT-BC305227  Grindelia hirsutula Lewis S. Rose 1930-7-22 s.n. Contra Costa Pittsburg Comment
  CAS-BOT-BC305232  Grindelia hirsutula Walter Knight 1978-8-27 3144 Contra Costa Contra Loma Regional Park 30 Comment
  CAS-BOT-BC305243  Grindelia hirsutula Walter Knight 1978-7-13 s.n. Contra Costa Browns Island Comment
  JEPS100140  Grindelia hirsutula G. Smick 2003-5-30 GAS 204 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS111662  Grindelia hirsutula A. G. Murdock 2004-5-28 284 Contra Costa Pinole Peak 205 Comment
  JEPS111719  Grindelia hirsutula D. G. Kelch 2004-6-19 04 .280 Contra Costa Selby Along railroad tracks west of Carquinez Bridge Crockett (Valona) 20 Comment
  JEPS20303  Grindelia hirsutula Lewis S. Rose 1954-11-23 54136 Contra Costa 1 mi s Pittsburg 15 Comment
  JEPS78613  Grindelia hirsutula Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3297 Contra Costa Browns Island Botany Cove, Browns Island 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
  UC1599361  Grindelia hirsutula Katharine Brandegee 1911-7-6 Contra Costa Pt. Isabel Pt. Isabel (near RR crossing) 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
  UC691868  Grindelia hirsutula Mary L. Bowerman 1930-6-18 347 Contra Costa Dan Cook Canyon Mount Diablo, Dan Cook Canyon Comment
  CAS-BOT-BC305235  Grindelia hirsutula L. R. Abrams 1917-9-13 6729 Contra Costa Patterson Pass Comment
  CAS-BOT-BC305240  Grindelia hirsutula John Thomas Howell 1929-9-21 4387 Contra Costa 4 miles west of Clayton Comment
  UC691151  Guillenia flavescens Mary L. Bowerman 1933-4-15 1859 Contra Costa second ridge se Arroyo del Cerro; Mount Diablo Comment
  UC691154  Guillenia flavescens Mary L. Bowerman 1935-4-22 2879 Contra Costa 2 mi from North Gate (North Road, just w of chaparral); Mount Diablo 213 Comment
  UC691126  Guillenia lasiophylla Mary L. Bowerman 1930-6-7 291 Contra Costa Meridian Peak summit Mount Diablo Comment
  CAS-BOT-BC304578  Gutierrezia californica Peter Rubtzoff 1954-9-14 1750 Contra Costa Along lower San Joaquin River, east of Antioch Comment
  UC1076516  Gutierrezia californica H. L. Mason 1929-9-21 5435 Contra Costa 3 mi above Clayton (Marsh Creek road) Comment
  SEINET10893043  Hainardia cylindrica E. E. Stanford 1930-5-16 Stanford 1485 Contra Costa Near Old River. Levee. Comment
  UC2027822  Hainardia cylindrica Barbara Ertter with Dorothy Frantz 2001-5-10 17644 Contra Costa Castle Rock Recreation Area at mouth of Pine Canyon on west side of Mount Diablo, trodden roadside. Comment
  RSA721367  Hedera helix Barbara Ertter 1994-10-23 13915 Contra Costa Southwest El Cerrito, north edge Breuner s parking lot, northwest Albany Hill. Comment
  SBBG122850  Hedypnois cretica B. Ertter 1994-5-23 12809 Contra Costa end of Rydin Rd, Pt Isabel at S end of Richmond Comment
  CAS-BOT-BC306373  Helenium bigelovii Walter Knight; Joanne Dean 1978-8-14 3181 Contra Costa Browns Island Comment
  CAS-BOT-BC305322  Helianthella castanea Alice Eastwood 1915-5-30 4475 Contra Costa Mitchel [Mitchell] Canyon, Mt. Diablo Comment
  JEPS85476  Helianthella castanea Leonora M. Ellis 1990-5-11 Contra Costa w Alamo (Horseman's Canyon and canyon to the w); Tice Valley 228 Comment
  UC194924  Helianthella castanea H. M. Hall 1916-5-31 10137 b Contra Costa exposed flat on s side Mt. Diablo 1066 Comment
  CAS-BOT-BC223918  Helianthemum scoparium Mary L. Bowerman 1932-4-9 1332 Contra Costa Mount Diablo. Ridge to Wall Point, from near Rock City Comment
  UC691733  Helianthus annuus Mary L. Bowerman 1936-9-17 3547 Contra Costa road to substation nw of Mount Zion (roadside, w side, between substation and Marsh Creek Road); Mount Diablo Comment
  CAS-BOT-BC305593  Helianthus californicus L. R. Abrams 1910-10-8 4341 Contra Costa Mt. Diablo 609 Comment
  CDA8364  Helianthus californicus D. G. Kelch 2004-9-2 4 .332 Contra Costa Carquinez Strait; Marsh east of Martinez and I-680 and east of Lone Tree Marsh. Comment
  RSA0012946  Helianthus californicus Joseph A. Ewan 1933-10-15 8037 Contra Costa SW slope of Mount Diablo. Comment
  JEPS99485  Helianthus gracilentus Mary Bowerman 1995-5-21 Contra Costa Mount Diblo. Wall Pt. Trail ca. 1/2 mi. E of Wall Pt. Comment
  UCD151071  Heliotropium curassavicum var. oculatum James A. Neilson Jr. 1972-11-2 3610 Contra Costa Contra Costa County. Walnut Creek drainage. (Elevation estimated using Google Earth by label maker.) 1 Comment
  UCD36034  Heliotropium curassavicum var. oculatum Beecher Crampton 1949-7-15 486 Contra Costa Contra Costa County, below original site of Judsonville, head of Lone Tree Valley, along Sand Creek, just before coming to Lee Higgins Empire Ranch. 114 Comment
  UCD150889  Helminthotheca echioides James A. Neilson Jr. 1972-11-2 3606 Contra Costa Channel of Walnut Creek ca. 1 mi. north of junction with Pine Creek. Elevation estimated using Google Earth by label maker. 1 Comment
  CAS-BOT-BC306264  Hemizonia congesta subsp. lutescens Walter Knight; Irja Knight; Neil Havlik; Jim Silliman 1979-10-7 3434 Contra Costa Point Pinole Regional Shoreline Comment
  CDA33542  Hemizonia congesta subsp. luzulifolia D. G. Kelch 2010-11-28 10 .449 Contra Costa El Sobrante. Hill above the junction of San Pablo Dam Rd and El Portal Dr (Quail Hill). Comment
  JEPS111722  Hemizonia congesta subsp. luzulifolia D. G. Kelch 2004-7-9 04 .294 Contra Costa Crockett - Carquinez Scenic Drive Carq. Scenic Dr. East of Crockett West of Bull Valley SA 60 Comment
  CAS-BOT-BC314872  Hemizonia congesta subsp. luzulifolia D. E. Breedlove 1969-10-18 16707 Contra Costa Along the roadbank on Deer Hill Road near the junction with Happy Valley Road, Lafayette Comment
  LA203703  Hemizonia congesta subsp. luzulifolia Chas M. Belshaw; 1936-10-26 2722 Contra Costa near Walnut Creek Comment
  UC691542  Hemizonia congesta subsp. luzulifolia Mary L. Bowerman 1932-5-1 1405 Contra Costa grassy knoll e of creek and just n water tank; Mount Diablo, Alamo Canyon Comment
  UC990629  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1909-9-24 Contra Costa San Ramon Road above Hayward (canyon) Comment
  RSA81510  Hemizonia luzulifolia subsp. rudis James I. McMurphy 1909-9-25 s.n. Contra Costa Walnut Creek. Comment
  RSA81518  Hemizonia luzulifolia subsp. rudis James I. McMurphy 1909-9-24 s.n. Contra Costa San Ramon. Comment
  SEINET7883479 Image available Hemizonia obconica Lewis S. Rose 1938-1 38309 Contra Costa Marsh Creek, 8 mi. w. of Byron 61 Comment
  CDA38358  Heracleum lanatum A. G. Murdock 2004-4-3 260 Contra Costa Vaca Canyon. Comment
  UC901877  Heracleum lanatum L. Constance 1950-6-25 3326 Contra Costa s. rim Wildcat Canyon (Tilden Park); , Tilden Park 365 Comment
  UCD127539  Heracleum maximum R. Tofsrud 1948-1 s.n. Contra Costa Exact location unknonw. Comment
  RSA720838  Herniaria hirsuta subsp. cinerea Barbara Ertter, Lisa Schultheis 1995-4-27 14013 Contra Costa Lime ridge open space NW of Mt. Diablo in Walnut Creek; extension of Valley View road. 152 Comment
  CAS-BOT-BC310193  Hesperevax sparsiflora var. sparsiflora Barrett Anderson 1987-4-30 3504 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD 125 Comment
  JEPS111922  Hesperocnide tenella Dean G. Kelch and Andrew G. Murdock 2004-3-5 AGM 213 Contra Costa Martinez - Rankin Open Space. Comment
  CAS-BOT-BC167427  Hesperolinon breweri T. S. Brandegee 1884-5-1 s.n. Contra Costa Near Antioch Comment
  CAS-BOT-BC167435  Hesperolinon breweri Mrs. Brandegee 1884-5-1 s.n. Contra Costa Near Antioch Comment
  CAS-BOT-BC167440  Hesperolinon breweri Alice Eastwood 1915-5-30 4556 Contra Costa Mt. Diablo Comment
  UC311528  Hesperolinon breweri A. D. E. Elmer July, 1903 4545 Contra Costa Mount Diablo Comment
  UC692703  Hesperolinon breweri Mary L. Bowerman 1931-5-21 888 Contra Costa Curry-Cave Point trail Mount Diablo (bank just above streambed) 350 Comment
  CAS-BOT-BC167432  Hesperolinon breweri Mrs. K. Brandegee 1907-6-16 s.n. Contra Costa Hills between Anioch and Marsh Creek, on the easterly side of Mt. Diablo Comment
  CAS-BOT-BC167443  Hesperolinon breweri Mary L. Bowerman 1933-6-7 2254 Contra Costa North Peak Ridge, exposure south. Mount Diablo 1005 Comment
  UC2028990  Hesperolinon breweri Barbara Ertter 2000-5-14 17000 Contra Costa Donner Canyon on north side of Mount Diablo, serpentinitic sites in general area of junction of Donner Canyon, Cardinet Oaks, and Meridian Ridge roads, edged by Arctostaphylos glauca et al. Comment
  UC692699  Hesperolinon californicum Mary L. Bowerman 1931-5-21 886 Contra Costa w Cave Point; Mount Diablo 579 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
  UC35056  Hesperomecon linearis Chesnut and Drew 1889-4-17 Contra Costa Antioch Comment
  RSA445543  Hesperomecon linearis H. de Forest 1930-05 s.n. Contra Costa [No location data on label] Comment
  OBI7752  Heteromeles arbutifolia Dennis Voight 1975-11-26 22 Contra Costa Found in the Briones reservoir area 1.5 mi E of Bear Creek rd 152 Comment
  JEPS40434  Heterotheca grandiflora William Turner 1965-11-23 Contra Costa just e Antioch (in the Antioch sand hills); San Joaquin River Comment
  UC1584840  Heterotheca grandiflora Jerry Powell 1990-3-9 1574 Contra Costa Antioch National Wildlife Refuge Comment
  UC1619993  Heterotheca sessiliflora subsp. bolanderi Barbara Ertter 1991-5-5 9770 Contra Costa s of Pittsburg (s side of Rose Hill above cemetery, Black Diamond Mines Regional Preserve); Black Diamond Mines Regional Preserve, Rose Hill 365 Comment
  JEPS2467  Heterotheca sessiliflora subsp. echioides R. F. Hoover 1939-4-25 4060 Contra Costa Richmond hills Richmond Comment
  JEPS79319  Heterotheca sessiliflora subsp. echioides Edward Lee with Annetta Carter 1935-8-17 1624 Contra Costa Antioch; sand-dunes Comment
  UC615565  Heterotheca sessiliflora subsp. echioides Beryl O. Schreiber 1933-10-5 940 Contra Costa Mount Diablo Comment
  RSA0010319  Heterotheca sessiliflora var. bolanderioides J. C. Semple, B. A. Suripto, T. Ahmed 1990-8-16 9339 Contra Costa Charles Tilden Reg. Park, Vollmer Peak. Comment
  CAS-BOT-BC310908  Heterotheca villosa Niall McCarten; V. I. Dains 1986-1-1 04311257 81 Contra Costa East Contra Costa County. SW corner of Hwy. 4 & Laurel Road near Oakley Comment
  CAS-BOT-BC424186  Heuchera micrantha var. hartwegii L. R. Abrams 1921-5-25 8056 Contra Costa 4 1.2 mi from summit Mt Diablo Comment
  UC1034868  Hibiscus lasiocarpos Ira L. Wiggins 1954-9-5 13121 Contra Costa levee along Bethel Isl. Bethel Isl. Comment
  CAS-BOT-BC203373  Hibiscus lasiocarpos var. occidentalis Virginia I. Dains; Walter Knight 1986-8-8 5499 Contra Costa Jct Rock S1 & Warner Cut Comment
  CAS-BOT-BC203381  Hibiscus lasiocarpos var. occidentalis Vincent Jones 1920-8-29 s.n. Contra Costa Orwood Comment
  UC691430  Hieracium albiflorum Mary L. Bowerman 1933-6-14 2282 Contra Costa crest Inner Black Hills (Mount Diablo); Mount Diablo Comment
  UC1818934  Hirschfeldia incana Barbara Ertter, Mary Bowerman et al. 1995-5-7 14022 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, along road thru annual grassland with scattered blue oak south of Marsh Cr. Rd summit. 304 Comment
  JEPS111679  Holocarpha heermannii D. G. Kelch 2003-8-13 03 .129 Contra Costa Pig Sale 250 Comment
  SBBG33459  Holocarpha heermannii A. D. E. Elmer -Jul-1903 Contra Costa Mount Diablo Comment
  UC1332423  Holocarpha heermannii P. B. Dickey 1932-9-14 164 Contra Costa Walnut Creek Comment
  CAS-BOT-BC325829  Holocarpha heermannii John Thomas Howell 1930-9-28 5487 Contra Costa 1 mile from Walnut Creek on Walnut Avenue to Concord Comment
  CAS-BOT-BC325838  Holocarpha heermannii J McMurphy 1909-9-25 s.n. Contra Costa Creek below Alamo Comment
  RSA136762  Holocarpha heermannii J. T. Howell 1955-8-24 30901 Contra Costa Near Diablo County Club, south base of Mt. Diablo. Comment
  UC1550280  Holocarpha macradenia Dean Kelch 1988-8-8 Contra Costa immediately s I-80 (ca 1/2 mi w of Appian Way); Pinole Comment
  RSA0008457  Holocarpha macradenia David Powers 1974-10-6 1001 Contra Costa Pinole, 100-300 feet east of Hwy 80 and 100-300 yards south of Appian Way Comment
  CAS-BOT-BC320244  Holocarpha obconica David D. Keck; J. Clausen 1933-10-27 2566 Contra Costa Vasco Road at junction with Byron Road Comment
  CAS-BOT-BC320249  Holocarpha obconica H. M. Hall 1930-8-7 12846 Contra Costa Vasco Road at Junction 4 miles west of Byron Comment
  CAS-BOT-BC320250  Holocarpha obconica H. M. Hall 1930-9-24 12846 Contra Costa Vasco Road at Junction 4 miles west of Byron Comment
  CAS-BOT-BC320253  Holocarpha obconica David D. Keck 1933-11-2 2621 Contra Costa Deer Valley, 1/2 mi. S. of road to Brentwood Comment
  UC913078  Holocarpha obconica David D. Keck and J. Clausen 1933-10-27 2566 Contra Costa Vasco Road at junction with Byron Road Comment
  RSA0001317  Holocarpha obconica subsp. autumnalis D. D. Keck, Jens Clausen 1933-10-27 2567 Contra Costa 1.6 miles W. of Byron, 1.4 mi. from junction with Vasco Road. Comment
  SEINET5782142 Image available Holocarpha virgata L. S. Rose 1941-10-16 41467 Contra Costa 2 mi W of Byron Comment
  CAS-BOT-BC324613  Holocarpha virgata David D. Keck 1933-11-2 2624 Contra Costa 5 miles east of Clayton on Marsh Creek Road just opposite Mt. Diablo Comment
  UC1069564  Holocarpha virgata subsp. virgata G. T. Nordstrom 1937-10-28 1407 Contra Costa 1.6 mi nne Somersville; Mt. Diablo Quad. 188 Comment
  POM360683  Holocarpha virgata subsp. virgata L. S. Rose 1932-10-2 32654 Contra Costa Marsh Creek Road. Comment
  UC523544  Holocarpha virgata subsp. virgata David D. Keck 1933-11-2 2620 Contra Costa 6 mi from Antioch (between Lone Tree Way and Marsh Creek Road); Horse Valley Comment
  CAS-BOT-BC152590  Holodiscus discolor var. discolor Bonnie Templeton 1962-6-10 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC152593  Holodiscus discolor var. discolor Alice Eastwood 1915-6-21 4733 Contra Costa San Leandro Comment
  UC650561  Hordeum depressum Ira L. Wiggins 1930-4-17 4578 Contra Costa 1/4 m S of Byron Comment
  UCD85625  Hordeum depressum P. B. Kennedy 1929-4-24 s.n. Contra Costa Corner of Franklin Canyon Road near Concord, near Soldiers Monument. 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
  SEINET10958912  Hordeum hystrix Willis L. Jepson 1910-5-22 Jepson 4053 Contra Costa Very wet places in roadways. Berkeley Hills (Telegraph Canyon). 213 Comment
  CDA9385  Hordeum jubatum D. G. Kelch 2000-4-9 0 .141 Contra Costa 2 miles S of Byron in field N of Holey Road. 0 Comment
  LA14687  Hordeum jubatum H. S. Yates; 1936-8-11 6075 Contra Costa Baxter Creek 1280 Comment
  SD211511  Hordeum marinum subsp. gussoneanum Barbara Ertter, Jim Jokerst and Dave Magney 1989-4-5 8121 Contra Costa Southeast Contra Costa County: Alkalai sink West and adjacent to Clifton Court Forebay, circa15 airmiles Southwest of Stockton Comment
  UCD85876  Hordeum marinum subsp. gussoneanum P. B. Kennedy 1929-4-24 s.n. Contra Costa Corner of Franklin Canyon Road near Concord, near Soldiers Monument. Comment
  POM300591  Hordeum marinum subsp. gussoneanum Mary L. Bowerman 1931-5-13 846 Contra Costa Pine Canyon floor slightly more than a mile above the sulphur spring Comment
  CAS-BOT-BC284777  Hordeum murinum subsp. glaucum Mary L. Bowerman 1933-4-15 1845 Contra Costa Mount Diablo. Canyon south of Arroyo del Cerro Comment
  SEINET10892982  Hordeum murinum subsp. glaucum Alan A. Beetle Beetle 2924 Contra Costa On Taber Island, small island off N W side of Brooks Island, san Francisco Bay. Comment
  UCSB12516  Hordeum murinum subsp. leporinum Grah, Nancy 1962-4-14 Contra Costa .5 miles north of Miner Rd. on Sleepy Hollow Lane, Orinda 182 Comment
  UC521670  Horkelia californica subsp. dissita Joseph Andorfer Ewan 1933-10-15 8023 Contra Costa Above Indian Ceremonial Spr.; Mt. Diablo Comment
  UC691094  Horkelia californica subsp. dissita Mary L. Bowerman 1932-11-25 1666 Contra Costa Mount Diablo, Silver Spring Comment
  UC723810  Horkelia californica subsp. frondosa Joseph Andorfer Ewan 1934-5-20 8926 Contra Costa n. side Mt. Diablo Mt. Diablo; , Russelmann Park Comment
  CAS-BOT-BC536162  Horkelia californica var. elata Mary L. Bowerman 1938-6-14 3684 Contra Costa Rocky Point Spring, Mount Diablo 701 Comment
  CAS-BOT-BC532054  Horkelia californica var. frondosa V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley Comment
  JEPS1644  Hydrophyllum occidentale Mary L. Bowerman 1930-6-10 311 Contra Costa Meridian Peak summit; Mount Diablo Comment
  JEPS100042  Hypericum calycinum A. Langston 2003-6-23 AL 54 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1618342  Hypericum calycinum Barbara Ertter 1993-6-25 11907 Contra Costa 1/4 mi s of junction of Lomas Cantadas (1/4 mi s of Tilden miniature steam trains, Oakland-Berkeley Hills, Grizzly Peak Boulevard); Oakland-Berkeley Hills, Grizzly Peak Boulevard 487 Comment
  JEPS36517  Hypochaeris glabra W. L. Jepson 1922-5-23 9668 Contra Costa n slope Mt. Diablo Comment
  CDA7492  Hypochaeris radicata Goodwin, M. K. Bellue 1932-5-6 Contra Costa 0 Comment
  UC1818909  Isoetes howellii Barbara Ertter, Mary Bowerman et al. 1995-5-7 14032 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, in water of pond west of road in grassy flat. Comment
  JEPS78631  Isolepis cernua Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3306 Contra Costa Botany Cove Browns Island, Botany Cove Comment
  CAS-BOT-BC324757  Iva axillaris Walter Knight; Irja Knight 1977-8-21 3156 Contra Costa Martinez Regional Shoreline, Martinez, east of Ferry Street, 100 yards form S.P. tracks Comment
  RSA756246  Jaumea carnosa Barbara Ertter, Elizabeth Neese 1988-10-15 7975 Contra Costa Salicornia marsh west of I-580 in El Cerrito, west side along Rydin Road north of Central Avenue. Comment
  CHSC93636  Juglans californica var. hindsii Paul Kirk; Joe Callizo 2001-10-8 9 Contra Costa City of Lafayette Community Park, W side of Las Trampas Creek, 1 m E of backyard property line of home at 615 Burton Rd. 119 Comment
  CAS-BOT-BC109899  Juncus Walter Knight; Irja Knight 1977-6-27 s.n. Contra Costa Sierra Nevada. Las Trampas Wilderness Park. Mahogany Trail near Little Hills Ranch. Comment
  SEINET3840813  Juncus arcticus subsp. littoralis Unknown 2006-7-14 6 .326 Contra Costa East of Martinez, Along Marine Vista avenue immediately west of Pacheco Slough 1 Comment
  SEINET11263178  Juncus articulatus Barbara Ertter 1996-9-19 15300 Contra Costa Antioch Marina, edge of bay in Dow Marshlands.; 0 Comment
  IRVC14055  Juncus balticus J. Lanier 1967-5-21 s.n. Contra Costa Tice Valley Comment
  JEPS100049  Juncus bufonius A. Langston 2003-6-6 AL 39 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA0029053  Juncus bufonius var. bufonius Barbara Ertter 1999-6-12 16716 Contra Costa West Branch Alamo Creek on south flank of Mount Diablo, along unofficial path running from north spur of Black Hawk Ridge Road to south spur off of Knob Cones Point Road (near powerline). 457 Comment
  UC691986  Juncus bufonius var. congestus Mary L. Bowerman 1932-11-26 1671 Contra Costa Mount Diablo, Boulevard Spring (North Road) Boulevard Spring; Mount Diablo, Boulevard Spring Comment
  UC2028305  Juncus bufonius var. congestus Barbara Ertter, Susan D'Alcamo 1998-6-12 16200 Contra Costa Along Curry Canyon Road just east of Curry Point, south side of Mount Diablo. Comment
  SD241642  Juncus gerardi subsp. gerardi Barbara Ertter, Steve Matson 2003-5-31 18175 Contra Costa Martinez Regional Shoreline, brackish marsh along Pickleweed Trail west of Arch Bridge. Comment
  JEPS78616  Juncus lescurii Walter Knight, L. R. Heckard, and Bert Johnson 1978-9-28 3275 Contra Costa South Landing Browns Island Comment
  CDA15268  Juncus mexicanus G. F. Hrusa, D. Crowe 1998-5-8 14399 Contra Costa Sacramento Delta; Drainage ditch parallel to Antioch-Pittsburg Hwy, at E end of Dow Chemical property. Comment
  UC691940  Juncus mexicanus Mary L. Bowerman 1933-5-3 1987 Contra Costa Alder Creek Mount Diablo 1066 Comment
  UC1584658  Juncus occidentalis Jerry Powell 1989-3-26 1560 Contra Costa Point Molate Comment
  RSA722106  Juncus occidentalis Barbara Ertter, Gary Schoolcraft, Tony Morosco 1996-4-6 14566 Contra Costa West end Oyster Point road in Mt. Diablo State Park. Comment
  JEPS78629  Juncus oxymeris Walter Knight, L. R. Heckard, and Bert Johnson 1978-9-28 3276 Contra Costa Alder Point Browns Island Comment
  UC691913  Juncus patens Mary L. Bowerman 1933-9-9 2436 Contra Costa Frog Pond Mount Diablo Comment
  UCD35162  Juncus patens Beecher Crampton 1950-7-29 626 Contra Costa 1 mile north of Richmond. Comment
  JEPS112448  Juncus phaeocephalus var. paniculatus A. G. Murdock 2004-5-28 276 Contra Costa Refugio Valley 120 Comment
  JEPS111079  Juncus phaeocephalus var. phaeocephalus Lee Echols 2003-6-2 s.n. Contra Costa N of Lark Drive in SW portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond 15 Comment
  JEPS112452  Juncus tenuis D. G. Kelch 2005-4-15 05 .134 Contra Costa Rodeo Creek East-West canyon feeding into Rodeo Creek 120 Comment
  JEPS112436  Juncus xiphioides D. G. Kelch 2004-5-7 04 .201 Contra Costa Ca ada del Cierbo 40 Comment
  UC691976  Juncus xiphioides Mary L. Bowerman 1930-6-28 383 Contra Costa Canyon Nook Picnic Grounds Mount Diablo 670 Comment
  UC691978  Juncus xiphioides Mary L. Bowerman 1932-11-12 1648 Contra Costa Pine Spring 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
  UC692110  Juniperus californica Mary L. Bowerman 1932-10-9 1629 Contra Costa ridge on ne side North Peak ((above Gabriel-Hinks')); Mount Diablo 685 Comment
  UCR168453  Juniperus californica Joseph A. Ewan 1933-10-15 8038 Contra Costa Coast Range, Mount Diablo, southwest slope 1067 Comment
  JEPS55998  Keckiella corymbosa L. R. Heckard and R. Bacigalupi 1968-6-27 Contra Costa Bald Ridge Mt. Diablo (along trail to Eagle Peak, ne of Deer Flat) 670 Comment
  UC691611  Keckiella corymbosa Mary L. Bowerman 1930-7-20 412 Contra Costa summit Mount Diablo Comment
  UCSB6170  Keckiella corymbosa Keator, Glenn 1959-7-1 Contra Costa 1/4 mile above Laurel camp on Mt. Diablo Comment
  CDA21464  Kochia scoparia C. Thayer, Erin McDermott 2006-8-23 082306 a Contra Costa Antioch, NW corner of Deer Valley Rd. and Lone Tree Way. Comment
  UCD19084  Kochia scoparia subsp. scoparia Clyde Elmore 1983-7-20 s.n. Contra Costa Contra Costa County. Comment
  UC692395  Koeleria macrantha Mary L. Bowerman 1933-5-3 1983 Contra Costa Alder Creek Canyon Mount Diablo; , Alder Creek Canyon 731 Comment
  UC691804  Lactuca saligna Mary L. Bowerman 1932-11-26 1676 Contra Costa Maple Spring; Mount Diablo Comment
  CAS-BOT-BC340425  Lactuca saligna John Thomas Howell 1932-10-16 10819 Contra Costa Near San Ramon Comment
  CAS-BOT-BC340542  Lactuca serriola R. E. Frenkel 1964-2-5 353 Contra Costa On California Hwy. 21, Market Plaza Center, Alamo 79 Comment
  JEPS3931  Lactuca virosa John Thomas Howell 1943-8-22 19310 Contra Costa near head of San Leandro Creek Canyon 243 Comment
  CAS-BOT-BC340699  Lactuca virosa John Thomas Howell 1943-8-22 19310 Contra Costa Near head of San Leandro Creek Canyon 243 Comment
  POM303721  Lactuca virosa J. T. Howell 1943-8-22 19310 Contra Costa Near head of San Leandro Creek Canyon. 244 Comment
  UC2028521  Lactuca virosa Barbara Ertter 1997-9-14 15804 Contra Costa WSW base of Mount Diablo, creek NW of Macedo Ranch between Pine Ridge and lowers Wall Point Road. Comment
  UC912318  Laennecia coulteri Herbert L. Mason 1929-9-21 5443 Contra Costa one mile e of junction of Bordon Highway and road to Antioch; Antioch, Borden Highway Comment
  CAS-BOT-BC341477  Lagophylla ramosissima Mary L. Bowerman 1930-10-19 487 Contra Costa Mount Diablo. South road at Garden-of-the-Gods Comment
  UC2028539  Lamium amplexicaule Barbara Ertter 1998-3-1 15920 Contra Costa Shell Ridge Open Space on northwest base of Mount Diablo, Sulfur Creek upstream from Good's Spring. Comment
  UC14012  Lastarriaea coriacea Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  CAS-BOT-BC337977  Lasthenia californica W. H. Brewer 1862-5-19 1120 Contra Costa North of Kirker's Pass Comment
  POM6192  Lasthenia californica C. F. Baker 1903-4-25 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC337982  Lasthenia californica Niall McCarten; V. I. Dains 1986-1-1 03261200 8 Contra Costa Near Brushy Creek. East Contra Costa County Comment
  JEPS10382  Lasthenia californica subsp. californica W. L. Jepson 1931-4-5 15718 Contra Costa adobe flat in hills about Nortonville 457 Comment
  UC34167  Lasthenia californica subsp. californica Harley P. Chandler 1901-4-5 993 Contra Costa Mt. Diablo Comment
  UC62989  Lasthenia californica subsp. californica H. M. Hall 1901-4-5 1749 a Contra Costa Mt. Diablo Comment
  UC194264  Lasthenia conjugens Edward Lee Greene 1887-4-16 Contra Costa Antioch Comment
  UC33074  Lasthenia conjugens J. Burtt Davy 1895-4-7 968 Contra Costa Antioch; ; Antioch, Contra Costa Co. Comment
  JEPS89764  Lasthenia ferrisiae Dean William Taylor 1971-3-28 987 Contra Costa along Highway 4 1 mi e of the junction with Byron Highway Byron Highway; along Highway 4 3 Comment
  POM50986  Lasthenia ferrisiae Alice Eastwood 1914-3-14 3761 Contra Costa Byron Springs. Comment
  RSA537664  Lasthenia ferrisiae Barbara Ertter, Jokerst, D. Magney 1989-4-5 8124 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  JEPS18379  Lasthenia fremontii Rimo Bacigalupi with F. Chisaki 1957-3-27 5766 Contra Costa about 5.25 mi nw of Bethany and 1.25 mi nw of Herdlyn n end of the Holey road; At S. P. R. R. crossing of Byron Hwy. 5 Comment
  JEPS111488  Lasthenia glaberrima Nancy Hillyard 2004-5-18 884 Contra Costa Briones Park Comment
  CAS-BOT-BC352926  Lasthenia glaberrima Kellogg 1870-4-20 s.n. Contra Costa Antioch Comment
  JEPS116855  Lasthenia glaberrima David Gowen 2007-4-16 675 Contra Costa Briones Regional Park in the northern Maricich Lagoon. Comment
  UC90071  Lasthenia glabrata subsp. glabrata K. Brandegee 1889-5-1 Contra Costa Antioch Comment
  SD241758  Lasthenia microglossa Mary Bowerman 1979-4-10 Contra Costa Mount Diablo. Mitchell Canyon opposite upper end of old reservoir. On steep bank above fire road. Comment
  JEPS9811  Lasthenia minor Anna E. Ehlers 1920-4-18 557 Contra Costa near Mt. Diablo; Pine Canyon Comment
  CAS-BOT-BC370829  Lasthenia platycarpha Alice Eastwood 1914-3-14 3823 Contra Costa Byron Springs Comment
  JEPS81844  Lasthenia platycarpha Rimo Bacigalupi with Paul C. Hutchinson and John Weiler 1959-3-10 6967 Contra Costa 1 mi se Byron (in fields e of Byron road) 6 Comment
  UCD106240  Lathyrus jepsonii var. californicus R. N. Raynor 1939-4-15 s.n. Contra Costa Near San Ramon. Comment
  JEPS107088  Lathyrus latifolius Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14671 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay, northwest corner of area. Comment
  JEPS99995  Lathyrus latifolius G. Smick 2003-5-30 GAS 199 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  POM19744  Lathyrus vestitus subsp. vestitus C. F. Baker 1903-4-28 2944 Contra Costa Mitchells Canyon, Mt. Diablo. Comment
  JEPS55375  Lathyrus vestitus var. vestitus W. L. Jepson 1918-6-5 7615 Contra Costa Donner Canyon Mt. Diablo 701 Comment
  JEPS91399  Lathyrus vestitus var. vestitus Dean W. Taylor 1993-5-2 13420 Contra Costa hillside above Selby Siding, ca. 1 mile W of Carquinez Bridge, near BM 378 106 Comment
  UC15363  Lathyrus vestitus var. vestitus W. H. Brewer 1862-4-30 Contra Costa Monte Diablo Comment
  UC692238  Lathyrus vestitus var. vestitus Mary L. Bowerman 1931-4-19 741 Contra Costa above lower Deer Flat Mount Diablo, Deer Flat Comment
  UC692312  Lathyrus vestitus var. vestitus Mary L. Bowerman 1933-6-3 2239 Contra Costa Ransom Point ridge Mount Diablo Comment
  UC15372  Lathyrus vestitus var. vestitus W. L. Jepson Contra Costa Fish Ranch Comment
  UC2061511  Laurus nobilis Dean G. Kelch 2016-4-30 16 .102 Contra Costa Carquinez Strait: Selby, west of Crockett. On west side of canyon near old dwelling foundation. Comment
  RSA720810  Lavatera assurgentiflora Barbara Ertter 1994-6-6 12822 Contra Costa Point Isabel in south Richmond Comment
  UC30668  Layia gaillardioides H. P. Chandler 1900-3-24 Contra Costa Briones Hills; Mount Diablo Comment
  UC697167  Layia gaillardioides Mary L. Bowerman 1933-4-15 1864 Contra Costa second ridge s of Arroyo del Cerro; Mount Diablo Comment
  UCSC000762  Layia gaillardioides H. M. Hall 1900-5-24 s.n. Contra Costa Mt. Lawson Comment
  UC30623  Layia glandulosa unknown 1900-4-5 Contra Costa Oakley Comment
  POM267968  Layia hieracioides D. D. Keck 1941-6-5 5307 Contra Costa Berkeley Hills, Fish Creek Road 1/4 mile W of E portal of Broadway Tunnel. 335 Comment
  RSA34206  Layia hieracioides D. D. Keck 1941-6-5 5307 Contra Costa Berkeley Hills, Fish Creek Road 1/4 mile W of E portal of Broadway Tunnel. 335 Comment
  UC697169  Layia hieracioides Mary L. Bowerman 1933-5-3 1969 Contra Costa Due s of summit 731 Comment
  CAS-BOT-BC370665  Layia platyglossa Alice Eastwood 1915-5-30 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC377908  Layia platyglossa L. R. Abrams 1921-5-25 8011 Contra Costa near summit of Mt. Diablo Comment
  SBBG28031  Layia platyglossa L. S. Rose 1933-4-17 33093 Contra Costa Antioch Comment
  UC30667  Layia platyglossa R. C. Marsh 1900-4-5 Contra Costa Antioch Comment
  UC697152  Layia platyglossa Mary L. Bowerman 1935-4-26 2918 Contra Costa summit Mount Diablo Comment
  CAS-BOT-BC377912  Layia platyglossa J. Clausen 1936-4-18 1174 Contra Costa Summit Mt. Diablo along S. side of trail to Devil's Pulpit Comment
  CDA31884  Leersia oryzoides D. G. Kelch 2007-11-13 7 .656 Contra Costa Carquinez Strait; Old brick factory 1.2 km SE of Port Costa. Comment
  UCD63599  Leersia oryzoides Malcolm A. Nobs 1948-9-23 681 Contra Costa Rock Slough, 7 mi. south of Kingston. 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
  UC1607680  Lemna minuscula Barbara Ertter, Chris Thayer 1993-5-7 11690 Contra Costa Hopkins Spring 1/2 mi se of Inspiration Point (on Wildcat Canyon Road, East Bay Municipal Utilities District land e of Tilden Park); Hopkins Spring, Wildcat Canyon Road 304 Comment
  CAS-BOT-BC215738  Lepechinia calycina H. E. McMinn 1922-6-2 99 Contra Costa Road side leading up to Mt. Diablo Comment
  JEPS111001  Lepechinia calycina W. L. Jepson 1921-11-19 9522 Contra Costa Chamise ridge, Mt. Diablo Comment
  CAS-BOT-BC88703  Lepidium acutidens John Thomas Howell 1933-3-29 10894 Contra Costa Nortonville. Comment
  UCD146720  Lepidium chalepense G. F. Hrusa; D. Crowe 1998-5-8 14374 Contra Costa Sacramento-San Joaquin River Delta. On Dow Chemical property at Pittsburg. Adjacent to shore of San Joaquin River. 2 Comment
  UCD169966  Lepidium chalepense R. M. Case 2001-5-10 PDR-P 088777 Contra Costa On Solano Ave., Concord. 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
  CHSC67912  Lepidium dictyotum var. acutidens James D. Jokerst 1989-3-29 3074 Contra Costa Byron Hot Springs area NE of Livermore, adjacent to pipeline on terrace S of ephemeral creek. Comment
  JEPS21345  Lepidium dictyotum var. acutidens J. Burtt Davy May 1898 Contra Costa Danville Mount Diablo Region Comment
  POM181449  Lepidium didymum I. L. Wiggins 1930-4-18 4595 Contra Costa East end of Jersey Island. Comment
  UCD115342  Lepidium didymum Collector unknown Date unknown s.n. Contra Costa Jersey Island. Comment
  RSA759893  Lepidium latifolium Barbara Ertter, CNPS 1990-9-16 9649 Contra Costa Southeast side of Holland Track northeast of Brentwood, edge of parking area for marina near field. 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-BC89890  Lepidium nitidum Alice Eastwood 1914-3-14 3766 b Contra Costa Byron Springs. Comment
  JEPS124454  Lepidium nitidum Daniel Slakey with Randy Morgan 2015-4-3 89 Contra Costa Alkaline grassland on southwest corner at the intersection/curve of Raymond Rd. and Ames St. Comment
  SBBG2518  Lepidium nitidum J. M. Tucker 1946-3-24 1380 Contra Costa hills between Nortonville and Somersville 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
  UC517997  Lepidium nitidum Lewis S. Rose 1933-3-29 33045 Contra Costa Pittsburg Comment
  RSA34733  Lepidium nitidum R. C. Rollins 1946-3-25 3042 Contra Costa Western slope of Mount Diablo. Comment
  JEPS111862  Lepidium nitidum var. nitidum D. G. Kelch 2004-3-12 04 .28 Contra Costa Pinole Valley Hillside and canyon above Wright Road. Off of Pinole Valley Road. 220 Comment
  UC2028994  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
  JEPS111856  Lepidium strictum Dean G. Kelch and Andrew G. Murdock 2003-3-21 DGK 03 .044 Contra Costa Martinez-West: Ozol Rock and Scenic Drive. Comment
  JEPS99536  Lepidium strictum Mary L. Bowerman 1995-5-28 Contra Costa Mount Diablo, fire road from Macedo Ranch to Wall Pt. Ridge. Comment
  UCD64057  Leptochloa fusca subsp. uninervia Chandler Jensen 1957-11-7 Contra Costa Vasco road, about 5 mi. south of Brentwood. Comment
  UC2027821  Leptosiphon androsaceus Barbara Ertter with Stu Garrett 1997-3-29 15529 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  CAS-BOT-BC324112  Lessingia glandulifera var. glandulifera Walter Knight 1965-9-7 1171 Contra Costa Antioch Sand Dunes Comment
  UC1287418  Lessingia pectinata var. tenuipes Willard Spence 1960-9-2 609 Contra Costa 0.2 mi e of Antioch Boat Ramp; Antioch Comment
  UC691184  Leymus X multiflorus Mary L. Bowerman 1938-11-19 3734 Contra Costa Mitchell Creek tributary s Black Point; Mount Diablo 259 Comment
  UC790970  Leymus X multiflorus A. A. Beetle 1941-6-24 1751 Contra Costa Pt. Richmond San Francisco Bay Comment
  CDA39657  Leymus X multiflorus Slate 2013-5-22 PDR# 1641699 Contra Costa Concord; Walnut Creek channel upstream of Willow Pass Rd. 0 Comment
  CDA15266  Leymus triticoides G. F. Hrusa, D. Crowe 1998-5-8 14397 Contra Costa Sacramento Delta; Large colony at confluence of ditch adjacent to Antioch-Pittsburg highway and former streambed passing through disturbed grasslands at E end of Dow Chemical property in Pittsburg. Both blue-glaucous and green forms present. Comment
  RSA108362  Leymus triticoides Frank W. Gould 1941-5-6 1286 Contra Costa 2.3 miles from Walnut Creek on Danville road. Comment
  CAS-BOT-BC272217  Leymus triticoides Walter Knight 1965-9-7 1174 Contra Costa Along San Joaquin River bank, Antioch dunes Comment
  CDA32488  Leymus triticoides Ball ? 1944-6-9 Contra Costa El Cerrito 0 Comment
  JEPS111551  Ligustrum lucidum D. G. Kelch 2005-5-13 05 .234 Contra Costa Martinez Martinez. South of oil refinery along Railroad tracks in fragment of habitat 28 Comment
  CDA7913  Lilaeopsis masonii D. G. Kelch, A. G. Murdock 2005-5-2 5 .297 Contra Costa Carquinez Strait; Glen Cove Shore. Comment
  UC691999  Lilium pardalinum Mary L. Bowerman 1935-6-21 3144 Contra Costa e fork Arroyo del Cerro; Mount Diablo 289 Comment
  JEPS65185  Limnanthes douglasii subsp. rosea L. R. Heckard 1971-4-15 2482 Contra Costa s Byron (at intersection of Holey Road) Comment
  UCD33430  Limnanthes douglasii subsp. rosea Beecher Crampton 1968-3-27 8238 Contra Costa Contra Costa County, S.E. corner of County, ca. 3.5 miles south of Byron. Comment
  CDA33338  Limnobium laevigatum Robin Breckenridge, Katheryn White 2010-10-5 PDR# 5059101 Contra Costa Rio Vista; San Joaquin River, 1/2 mile east of Fisherman s Cut. 2 miles west of Spin Drift Marina. 0 Comment
  CDA33363  Limnobium laevigatum Robin Breckenridge 2010-10-1 PDR# 5059103 Contra Costa Oakley; Bradford Island, Santa Clara Shoal. 0 Comment
  UC400968  Linanthus ambiguus J. G. Lemmon Contra Costa Mt. Diablo Comment
  JEPS113037  Linanthus androsaceus Dean W. Taylor 1994-3-30 14116 Contra Costa Mt. Diablo (in Mt. Diablo State Park); 2 mi S along North Gate Road from the North Gate kiosk, 426 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
  UC1819039  Linanthus bicolor Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14239 Contra Costa South side Mount Diablo, road to Sheepherders Springs 1/2 mile north of Curry Point from Sloan Road, clay at edge of grassland/woodland. 426 Comment
  UC23464  Linanthus ciliatus Brewer 1862-5-22 1138 Contra Costa Comment
  UC2062654  Linum usitatissimum Barbara Ertter 2004-4-25 18367 Contra Costa Coulter Pine Trail on north side of Mount Diablo State Park. Comment
  CAS-BOT-BC430613  Lithophragma affine Lewis S. Rose 1933-4-17 33099 Contra Costa Walnut Creek Comment
  JEPS112261  Lithophragma affine A. G. Murdock 2004-4-30 259 Contra Costa Vaca Canyon Comment
  JEPS112265  Lithophragma affine D. G. Kelch 2005-3-11 05 .033 Contra Costa Franklin Canyon - McHarry Ranch Road.; McHarry Ranch Road off of Franklin Canyon Road Comment
  RSA8363  Lithophragma affine subsp. affine L. S. Rose 1933-4-17 33099 Contra Costa Walnut Creek. Comment
  RSA0027641  Lithophragma bolanderi Barbara Ertter 1998-5-3 16038 Contra Costa SW fork of Pine Creek between Pine Ridge and Wall Point Ridge, southwest base of Mount Diablo. 244 Comment
  UC11926  Lithophragma cymbalaria J. Burtt Davy 1895-4-7 906 Contra Costa Antioch Comment
  CAS-BOT-BC435625  Lithophragma heterophyllum Mary L. Bowerman 1931-3-21 585 Contra Costa Sycamore Canyon Comment
  CDA25418  Lithophragma heterophyllum A. G. Murdock, D. G. Kelch 2004-4-3 240 Contra Costa Vaca Canyon. Comment
  UC1005823  Lobelia tupa N. Floy Bracelin 1944-10-15 2815 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC342120  Logfia filaginoides John Thomas Howell 1940-4-21 15406 Contra Costa Pine Canyon, Mt. Diablo Comment
  JEPS111698  Logfia gallica D. G. Kelch 2004-4-25 04 .121 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Hill Southwest of large cottonwood. West of Martinez at gated end of Scenic Dr 50 Comment
  UC691200  Lolium multiflorum Mary L. Bowerman 1935-5-16 3003 Contra Costa Russelman Park Road at Gregory Ranch junction; Mount Diablo 289 Comment
  SEINET2074966  Lolium multiflorum S. J. Gibbs 1970-3-27 Contra Costa Oak View Terrace, 3 mi. N.E. of P.O. 121 Comment
  UC691261  Lolium temulentum Mary L. Bowerman 1932-4-27 1367 Contra Costa Oyster Ridge, s face Mount Diablo (w-facing slope of ridge w of Riggs Canyon); , Oyster Ridge, s face Comment
  UCD66671  Lolium temulentum K. Brandegee 1916-5-9 Contra Costa Byron Springs. Comment
  CAS-BOT-BC271057  Lolium temulentum Mary L. Bowerman 1933-5-17 2096 Contra Costa Branch of Curry Canyon due south of Olafsons barn, Mount Diablo Comment
  SEINET13944355 Image available Lomatium caruifolium C. F. Baker 1904-1 2800 Contra Costa Byron Comment
  JEPS111601  Lomatium dasycarpum D. G. Kelch 2000-5-22 00 .143 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Ozol Rock. 2 miles west of Martinez on Vista Drive 22 Comment
  CDA38380  Lomatium dasycarpum P. Arnaud 1959-4-19 2239 Contra Costa Mt. Diablo State Park, Juniper Campground. 0 Comment
  JEPS17143  Lomatium dasycarpum subsp. dasycarpum W. L. Jepson 1918-6-3 7579 Contra Costa Donner Canyon Mt. Diablo Comment
  JEPS17116  Lomatium macrocarpum M. K. Curran May 1885 Contra Costa Antioch Comment
  POM301009  Lomatium macrocarpum Mary L. Bowerman 1935-4-26 2917 Contra Costa Contra Costa County: Ridge W of Indian Ceremonial Spring: Rocky ridge with S exposure. 1006 Comment
  JEPS100134  Lomatium utriculatum G. Smick 2003-3-25 GAS 116 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  OBI70555  Lomatium utriculatum D. G. Kelch 2007-3-24 7 .093 Contra Costa Ozol; between Port Costa and Martinez, near old brick quarry Comment
  UC21269  Lomatium utriculatum Alice Eastwood 1894-5-3 Contra Costa Antioch Comment
  UC691422  Lomatium utriculatum Mary L. Bowerman 1935-5-30 3096 Contra Costa between the two ridges which converge at Twin Peaks (Eagle Point ridge) Mount Diablo 350 Comment
  UC1051201  Lonicera etrusca N. Floy Bracelin 1944-6-4 2245 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CDA42192  Lonicera hispidula var. vacillans D. G. Kelch 2004-5-2 4 .167 Contra Costa Carquinez Strait Region; Edwards Canyon, Crockett. Comment
  JEPS12841  Lonicera hispidula var. vacillans W. L. Jepson May 23 1891-May 24 1891 Contra Costa 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
  UC691485  Lonicera subspicata var. denudata Mary L. Bowerman 1931-6-4 922 Contra Costa summit Mount Diablo (on n face) Comment
  UC1051339  Lophospermum erubescens N. Floy Bracelin 1941-6-15 1389 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  UC1606346  Lotus purshianus var. purshianus Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, and Amy Hiss 1991-8-18 10702 Contra Costa n of Pittsburg (near confluence of Sacramento and San Joaquin rivers, opposite Pittsburg Marina, flat in center of w end of island); Browns Island Comment
  JEPS55900  Lotus scoparius A. M. Ottley 1920-6-5 773 Contra Costa Moraga Ridge Comment
  UC764469  Lotus strigosus R. F. Hoover 1935-3-10 303 Contra Costa Antioch Comment
  JEPS116857  Lotus strigosus David Gowen 2007-4-13 673 Contra Costa On dirt road junction (Ridge Trail) between Castle Rock Recreation Area and Borges Ranch. Comment
  JEPS55826  Lotus wrangelianus A. M. Ottley 1920-6-5 779 Contra Costa below Moraga Ridge Comment
  UC692263  Lotus wrangelianus Mary L. Bowerman 1933-5-9 2045 Contra Costa Stage Road Mount Diablo 853 Comment
  UC2029111  Ludwigia peploides subsp. montevidensis Barbara Ertter with Lincoln Constance 1995-6-16 14263 Contra Costa East edge Dow Marsh on west side Antioch Marina, south side San Joaquin River in Delta area, edge of marsh. Comment
  UC15760  Lupinus affinis unknown 996 Contra Costa Martinez Comment
  POM77723  Lupinus affinis C. P. Smith 1922-5-20 3531 Contra Costa Oakland - Walnut Creek Road. Comment
  UC1613952  Lupinus albicaulis Charles M. Belshaw 1935-6-24 1035 Contra Costa Sobrante Hills Comment
Read comments
Feb 6 2013
  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
  UC864974  Lupinus albifrons var. albifrons Lewis S. Rose 1935-5-16 35162 Contra Costa Mt. Diablo Comment
  UC127056  Lupinus arboreus Ivar Tidestrom 1893-4-15 Contra Costa Sheep Island Comment
  UC1948937  Lupinus arboreus William J. Ferlatte, L. Maynard Moe 1970-4-27 1262 Contra Costa San Francisco Bay: Red Rock Island Comment
  JEPS112360  Lupinus bicolor Dean G. Kelch and Andrew G. Murdock 2004-5-28 288 Contra Costa Pinole Peak; County: Contra Costa. Comment
  JEPS73601  Lupinus bicolor L. R. Heckard 1971-4-22 2497 Contra Costa along railroad grade near highway 80 crossing e Pinole; e of Pinole Comment
  UC1076228  Lupinus bicolor Herbert L. Mason 1931-4-5 5821 Contra Costa Antioch sandhills Comment
  UC1584851  Lupinus bicolor Jerry Powell 1989-4-6 1561 Contra Costa Point Molate Comment
  UC33589  Lupinus bicolor J. P. Tracy 1900-3-24 624 Contra Costa Point Richmond San Francisco Bay, Point Richmond (Dry Hill) 15 Comment
  UC692568  Lupinus bicolor Mary L. Bowerman 1931-3-21 600 Contra Costa e end Rock City Ridge Mount Diablo (Fossil Ridge, Mount Diablo); , Rock City Ridge, Fossil Ridge Comment
  UC73195  Lupinus bicolor Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  UC762917  Lupinus bicolor R. F. Hoover 1935-3-10 306 Contra Costa Antioch Comment
  JEPS111069  Lupinus bicolor Lee Echols 2003-4-1 s.n. Contra Costa N of Lark Drive in SE portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  UCD107314  Lupinus bicolor Helen K. Sharsmith 1963-4-7 5292 Contra Costa near Oakley south of Antioch. 15 Comment
  RSA442325  Lupinus bicolor subsp. microphyllus H. de Forest 1930-4-12 14147 Contra Costa Coalinga Comment
  POM10667  Lupinus bicolor subsp. tridentatus H. P. Chandler 975 Contra Costa Between Pine Canyon and the Summit. Comment
  UCD151190  Lupinus chamissonis James A. Neilson Jr. 1974-8-13 3024 Contra Costa west end of Bradford Island. (Elevation estimated using Google Earth by label maker.) 0 Comment
  CDA6113  Lupinus formosus D. G. Kelch 2007-5-12 7 .289 Contra Costa Carquinez Strait; Franklin Ridge, S of Hwy 4 at McEwen Rd. Comment
  SEINET13198366 Image available Lupinus formosus A. G. Vestal 1947-6-2 s.n. Contra Costa Comment
  UCD107761  Lupinus formosus P. B. Kennedy 1916-5-11 12 Contra Costa Grand View Terrace; Richmond District. Comment
  UCD107762  Lupinus formosus P. B. Kennedy 1916-5-11 12 Contra Costa Grand View Terrace; Richmond District. Comment
  UCD107777  Lupinus formosus L. S. Smith 1916-5-10 s.n. Contra Costa Grand View Terrace - San Pablo. Comment
  JEPS100071  Lupinus formosus var. formosus A. Langston 2003-6-23 AL 53 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS112326  Lupinus formosus var. formosus Dean G. Kelch and Andrew G. Murdock 2004-9-2 04 .329B Contra Costa McEwen Road; County: Contra Costa; McEwen Road from Port of Costa - I-4 near summit of Road. Contra Costa County CA. Comment
  UC1613951  Lupinus formosus var. formosus Charles M. Belshaw 1935-6-24 1033 Contra Costa Sobrante Hills Comment
  JEPS111072  Lupinus formosus var. formosus Lee Echols 2003-5-5 s.n. Contra Costa N of Lark Drive in N portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  RSA720840  Lupinus formosus var. formosus Barbara Ertter, Dianne Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14674 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay. Comment
  JEPS25129  Lupinus microcarpus var. densiflorus G. Thomas Robbins 1959-4-18 3992 Contra Costa along Western Drive near and n Pt. Richmond (western base of Potrero Hills, Richmond); western base of Potrero Hills, n of Pt. Richmond 4 Comment
  UC692275  Lupinus microcarpus var. densiflorus Mary L. Bowerman 1931-4-18 735 Contra Costa Green Valley Mount Diablo (Mount Diablo); , Green Valley Comment
  UCR197907  Lupinus microcarpus var. densiflorus Beecher Crampton 1950-4-22 525 Contra Costa Above site of Judsonville, west of old Empire mine 183 Comment
  JEPS65467  Lupinus microcarpus var. microcarpus W. L. Jepson 1921-5-22 9214 Contra Costa Mt. Diablo; Mt. Diablo, s slope 609 Comment
  UC1562540  Lupinus microcarpus var. microcarpus Barbara Ertter with Elizabeth Neese 1988-4-24 7453 Contra Costa between and parallel to Nortonville and Somersville roads Black Diamond Mines Regional Preserve sw Antioch; Black Diamond Mines Regional Preserve Comment
  UC2028214  Lupinus nanus Barbara Ertter with Richard K. Brummitt 1998-5-13 16132 Contra Costa Summit Road on Mount Diablo, base of rock outcrop/roadcut above Juniper Camp. Comment
  UCSB10857  Lupinus nanus Judy Hayes 1961-3-29 48 Contra Costa collected 2.0 mi N, along Cliffhill Road Danville - Danville and Cliffhill Road Comment
  RSA0027639  Lupinus pachylobus Barbara Ertter, Tony Morosco 1998-4-12 16002 Contra Costa Base of Mount Olympia on north side of Mount Diablo, slope above quarry NE of Olympia Trail, with numerous outcrops. 518 Comment
  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
  CHSC23154  Lupinus polycarpus Robert A. Schlising 1962-4-7 2149 Contra Costa Coastal Range. Roadside near Antioch Reservoir. Comment
  UC2028336  Luzula macrantha Barbara Ertter 1991-5-5 9778 Contra Costa Black Diamond Mines Regional Preserve S of Pittsburg, ridge E of Coal Canyon Comment
  UC1157921  Luzula subsessilis Olive Dyer 1937-4-4 252 Contra Costa Wildcat Canyon, 1/4 mi above end of road, N end of Canyon Comment
  JEPS120275  Lychnis coronaria Barbara Ertter 2012-10-27 21293 Contra Costa entrance gate to Golf Course Trail in Tilden Regional Park 370 Comment
  OBI78277  Lythrum californicum D. G. Kelch 1996-10-17 s.n. Contra Costa CA Dept. Food & Ag CDA; Carquinez Strait: Pt. Edith Marsh 1 Comment
  UCD102995  Lythrum californicum Herbert L. Mason 1955-7-14 14636 Contra Costa 1/2 mile E of Antioch Bridge. Comment
  JEPS45963  Lythrum hyssopifolia W. L. Jepson 1922-7-9 9734 Contra Costa Richmond 6 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
  UC1051167  Mackaya bella N. Floy Bracelin 1944-7-19 2762 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC697172  Madia elegans Mary L. Bowerman 1933-5-17 2106 Contra Costa Curry Canyon brance s of Olafsons' barn Mount Diablo 289 Comment
  UC691552  Madia elegans Mary L. Bowerman 1933-5-19 2144 Contra Costa Sulphur Springs Canyon, e fork Mount Diablo 457 Comment
  CDA1585  Madia elegans subsp. densifolia D. G. Kelch 1998-10-2 s.n. Contra Costa Carquinez Strait; Martinez. Along N side of Pine St Entrance to W HWY 4. Comment
  CDA8239  Madia exigua D. G. Kelch, A. G. Murdock 2004-5-9 4 .205 Contra Costa Carquinez Strait Region; Crockett - Upper Edwards Canyon above Crockett Boulevard. Comment
  UC89384  Madia exigua Katharine Brandegee June 1892 Contra Costa Port Costa 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
  JEPS111538  Madia gracilis D. G. Kelch 2005-5-6 05 .222 Contra Costa Franklin Canyon East of Christie Road. South of Route 4 127 Comment
  JEPS111753  Madia gracilis D. G. Kelch 2005-4-24 05 .163 Contra Costa Franklin Canyon 60 Comment
  JEPS21969  Madia gracilis G. Thomas Robbins with S. Galen Smith 1958-6-2 3848 A Contra Costa just e Hercules city boundary (grassy slope along Franklin Canyon Road (State Hwy 4) s and above Refugio Valley) 18 Comment
  UC691766  Madia gracilis Mary L. Bowerman 1935-5-22 3052 Contra Costa saddle w Twin Peaks (Eagle Point ridge); Mount Diablo Comment
  UC691768  Madia gracilis Mary L. Bowerman 1931-5-21 889 Contra Costa Curry-Cave Point trail Comment
  OBI49199  Madia gracilis Joseph Andorfer Ewan 1934-5-20 8931 Contra Costa Russelmann Park N slope of Mt Diablo Comment
  CAS-BOT-BC324487  Madia radiata K. Brandegee 1908-4-9 50 Contra Costa Near Antioch 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
  UC89534  Madia radiata M. K. Curran May 1889 Contra Costa Antioch Comment
  RSA0008526  Madia radiata A. A. Heller 1938-4-9 s.n. Contra Costa 3 miles southwest of Antioch Comment
  CAS-BOT-BC343582  Madia sativa David D. Keck 1933-11-2 2614 Contra Costa 1 mi. W. of Avon, N. Contra Costa County Comment
  CAS-BOT-BC343585  Madia sativa R. E. Frenkel 1963-8-18 265 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  RSA721363  Madia sativa Barbara Ertter, Rich Rabeler 1994-6-18 12838 Contra Costa Pt. Pinole Regional Shoreline at north end of Richmond; northeast corner of park, near jct Marsh Trail and Cook's Point Trail. Comment
  UC2028109  Malacothamnus fasciculatus Barbara Ertter with Christopher Baysdorfer 1998-5-10 16114 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, on north end of Ohlone Trail. Comment
  UC2029010  Malacothamnus fremontii Barbara Ertter with Dan Norris 1999-11-14 16853 Contra Costa Black Diamond Mines Regional Preserve, chaparral patch below east half of Miners Trail. Comment
  UC1280806  Malacothamnus hallii H. E. McMinn and E. Maino 1931-4-11 123 Contra Costa Mount Diablo Comment
  UC692621  Malacothamnus hallii Mary L. Bowerman 1938-11-12 3732 Contra Costa Mount Diablo 289 Comment
  UC692676  Malacothamnus hallii Mary L. Bowerman 1933-6-3 2223 Contra Costa 2 mi by road from North Gate; Mount Diablo Comment
  CAS-BOT-BC204094  Malacothamnus hallii John Thomas Howell; T. H. Kearney 1950-7-5 26634 Contra Costa On North Road, Mt. Diablo 259 Comment
  UC691436  Malacothrix clevelandii Mary L. Bowerman 1933-5-3 1970 Contra Costa due s Meridian Peak summit (Mount Diablo); Mount Diablo 731 Comment
  UC691438  Malacothrix clevelandii Mary L. Bowerman 1933-5-18 2134 Contra Costa Mount Diablo Comment
  CAS-BOT-BC347390  Malacothrix floccifera Rimo Bacigalupi 1924-6-14 s.n. Contra Costa Summit of Mt Diablo Comment
  UC133354  Malacothrix floccifera C. F. Baker 1903-4-28 2948 Contra Costa Marsh Creek Mount Diablo Comment
  UC1613944  Malacothrix floccifera Charles M. Belshaw 1935-6-24 1024 Contra Costa Sobrante Hills Comment
  JEPS111546  Malva nicaeensis D. G. Kelch 2005-3-13 05 .47 Contra Costa Crockett - weedy area under Zampa Bridge 4 Comment
  UCD116680  Malva sylvestris Herbert L. Mason 1952-6-10 s.n. Contra Costa Waste land near Dwinelle Hall, University of California, Berkeley. Comment
  RSA0004205  Malvastrum howellii J. T. Howell 1931-5-12 6470 Contra Costa Nortonville Comment
  JEPS42516  Marah fabacea W. L. Jepson 1922-5-11 9648 Contra Costa North Berkeley Hills Comment
  UC1050529  Marah fabacea N. Floy Bracelin 1943-2-28 1950 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  RSA724228  Marah fabacea R. R. Halse 1988-2-20 3540 Contra Costa Along Marsh Creek Road, in the Dark Canyon area, 4 miles W of its junction with Deer Valley Road. 156 Comment
  CDA37959  Marah oregana Andrew Murdock, D. G. Kelch 2005-3-21 391 Contra Costa Carquinez Strait Region; South of Cumming s Skyway & about 1 km east of I-80. Comment
  CHSC46934  Marah oregana Robert A. Schlising; Anna Eagle 1962-5-29 2282 Contra Costa Roadside. Comment
  JEPS63286  Marrubium vulgare Mrs. E. L. Mossman 1931-3-20 74 Contra Costa e Richmond (Berkeley Hills); Berkeley Hills Comment
  CAS-BOT-BC348046  Matricaria discoidea R. E. Frenkel 1963-12-4 305 Contra Costa In walnut orchard on Marsh Creek Road, west of Sellers Road Comment
  JEPS65507  Medicago polymorpha W. L. Jepson 1923-10-4 10213 a Contra Costa Antioch 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
  UC16087  Medicago polymorpha J. Burtt Davy 1897-4-17 Contra Costa Point Isabel Comment
  CHSC116602  Medicago polymorpha var. polymorpha Lowell Ahart; Josephine Guardino 2016-4-19 20762 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  JEPS112333  Medicago sativa Dean G. Kelch and Andrew G. Murdock 2004-5-21 04 .219 Contra Costa Cummings Skyway; County: Contra Coasta; Exit from I-80 to Cummings Skyway. Comment
  CAS-BOT-BC271220  Melica californica Mary L. Bowerman 1935-5-8 2975 Contra Costa Knoll on spur south of Pioneer Camp, Mount Diablo 762 Comment
  CAS-BOT-BC271223  Melica californica Mary L. Bowerman 1935-4-17 2829 Contra Costa North Road 2 miles from North Gate, Mount Diablo 237 Comment
  UC606736  Melica californica Edward Lee 1936-4-19 1957 Contra Costa ne shore Red Rock; San Francisco Bay Comment
  SEINET10893688  Melica californica M. Bowerman 1991-5-21 Bowerman s.n. Contra Costa Mount Diablo. Jim White Trail [Deer Flat Rd]. South side of Juniper-Moses Rock Trail near Deer Flat junction. Large silvery patches scattered over S-facing hillside. Comment
  UC2028478  Melica californica Barbara Ertter with Richard K. Brummitt 1998-5-6 16102 Contra Costa Point San Pablo west of Richmond, crest of road to yacht harbor Comment
  POM300621  Melica imperfecta Mary L. Bowerman 1935-5-3 2956 Contra Costa Fossil Ridge: Hillside below the Jungle of the Garden Gods. Mount Diablo. 457 Comment
  UC692464  Melica imperfecta Mary L. Bowerman 1931-4-18 714 Contra Costa Sycamore Canyon; Mount Diablo 335 Comment
  UCD87871  Melica imperfecta P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  CAS-BOT-BC281433  Melica imperfecta Mary L. Bowerman 1931-4-18 714 Contra Costa Mount Diablo. Sycamore Canyon: moist bank where the chaparral does not extend down to the trail 335 Comment
  JEPS97557  Melica torreyana R. D. Stone 1980-7-13 270 Contra Costa Huckleberry TrailNE of intersection of Skyline Blvd. and Snake Rd. Oakland Hills, near Alameda-Contra Costa county line 396 Comment
  POM300622  Melica torreyana Mary L. Bowerman 1935-5-16 3013 Contra Costa Behind Gabriel-Hinks' (east side of North Peak) 290 Comment
  JEPS65535  Melilotus indicus W. L. Jepson 1922-5-18 9644 Contra Costa North Berkeley Hills 152 Comment
  JEPS99542  Melilotus indicus Mary L. Bowerman 1995-6-4 Contra Costa Mount Diablo, North Gate Rd. Comment
  UC2027800  Mentha aquatica Barbara Ertter 1996-9-19 15292 Contra Costa Antioch Marina, edge of marsh near parking lot. Comment
  SEINET3152170  Mentha canadensis Brandegee 1892-9-9 sn Contra Costa Antioch Comment
  POM300997  Mentha spicata Mary L. Bowerman 1938-11-19 3733 Contra Costa Mitchell Canyon (at one of places where stream crosses road) 229 Comment
  JEPS112484  Mentha spicata var. spicata D. G. Kelch 2004-4-30 04 .159 Contra Costa Alhambra Valley Along Alhambra Valley Road 120 Comment
  UC1789155  Mentha suaveolens Barbara Ertter 1999-9-19 16847 Contra Costa bank of Cerrito Creek at west end of Creekside Park, El Cerrito; local colony, flowers pale pink. Comment
  JEPS42758  Mentzelia dispersa W. L. Jepson 1921-5-22 9202 Contra Costa Mt. Diablo 914 Comment
  JEPS99537  Mentzelia micrantha Mary L. Bowerman 1978-5-26 Contra Costa Mount Diablo, N of lower summit parking lot. Comment
  SBBG2832  Micranthes californica J. M. Tucker 1946-3-24 1389 Contra Costa hills between Nortonville and Somersville Comment
  SBBG18894  Micranthes californica E. R. Chandler 1962-3-13 317 Contra Costa slope of Bartlett Cyn ca. 4 mi N of ocean, Bishop Ranch Comment
  UCD32380  Micropus californicus Beecher Crampton 1950-4-22 521 Contra Costa above site of Judsonville, above old Empire Coal Mine. 152 Comment
  JEPS40605  Micropus californicus var. californicus R. F. Hoover 1936-4-16 972 Contra Costa e slope Bald Peak Comment
  UC35594  Micropus californicus var. californicus Brewer 1862-4-30 1015 Contra Costa Walnut Creek, camp 69 Comment
  UCD134487  Micropus californicus var. californicus P. B. Kennedy 1925-4-26 s.n. Contra Costa Mt. Diablo. Below old road. Comment
  CDA29517  Microseris douglasii D. G. Kelch, Troy MacGregor 2009-5-1 9 .285 Contra Costa Carquinez Strait; Fernandez Ranch in valley bottom along Christie Rd. Comment
  UC1070040  Microseris douglasii subsp. douglasii C. M. Belshaw 1936-5-11 2094 Contra Costa 2 mi ene Danville; Mt. Diablo Quad. 243 Comment
  UC1795682  Microseris douglasii subsp. douglasii Barbara Ertter, Dale Sanders, Dan Norris 1994-3-26 12336 a Contra Costa Peyton Hill east of I-680 east of Martinez, south of Waterfront Road Comment
  UC691463  Microseris douglasii subsp. douglasii Mary L. Bowerman 1931-4-11 698 Contra Costa toward mouth of Pine Canyon; Mount Diablo Comment
  UC697214  Microseris douglasii subsp. douglasii Mary L. Bowerman 1933-5-8 2012 Contra Costa near crest Fossil Ridge (on n side by side road); Mount Diablo Comment
  UC71937  Microseris douglasii subsp. douglasii J. Burtt Davy 1895-4-7 966 Contra Costa Antioch Comment
  CAS-BOT-BC348885  Microseris douglasii subsp. douglasii Brandegee No date on label s.n. Contra Costa Antioch Comment
  SEINET10761171  Microseris douglasii subsp. douglasii Barbara J. Ertter, Stu Garrett 1997-3-29 Ertter 15527 Contra Costa West side Mount Diablo, Burma Road on Long Ridge, serpentine area (already drying out after 2 months without rain). Comment
  UC1795723  Microseris douglasii subsp. douglasii Barbara Ertter, Chris Thayer 1995-4-25 13984 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Sycamore Canyon trail from Knobcone Point Rd., open grassland. 457 Comment
  JEPS88684  Microseris douglasii subsp. tenella Edw. L. Greene March, 1889 Contra Costa Byron Comment
  CAS-BOT-BC322765  Microseris sylvatica M. K. Curran 1884-5-1 s.n. Contra Costa Antioch Comment
  JEPS36177  Microseris sylvatica W. L. Jepson 1918-6-3 7590 Contra Costa Donner Canyon Mt. Diablo 304 Comment
  SEINET5561514  Mimulus aurantiacus H. S. Gentry 1931-1 55 Contra Costa Collected on Mt. Diablo near Buckle Point. Comment
  RSA15451  Mimulus aurantiacus var. aurantiacus J. T. Howell 1936-4-19 s.n. Contra Costa Nortonville Comment
  UC691614  Mimulus aurantiacus var. aurantiacus Mary L. Bowerman 1931-3-29 622 Contra Costa East Cave Point Ridge Mount Diablo Comment
  POM5025  Mimulus cardinalis M. Alice King 1896-07 257 Contra Costa San Pablo Comment
  RSA408851  Mimulus constrictus Anstruther Davidson 1917-7-1 3279 Contra Costa Top Mt. Diablo. 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
  UC691649  Mimulus douglasii Mary L. Bowerman 1935-4-26 2906 Contra Costa w Indian Ceremonial Spring; Mount Diablo 1005 Comment
  UC1613940  Mimulus grandis Charles M. Belshaw 1935-6-24 1019 Contra Costa Sobrante Hills Comment
  CAS-BOT-BC151466  Mimulus latidens T. S. Brandegee 1888-5-1 s.n. Contra Costa Antioch Comment
  JEPS51443  Minuartia douglasii W. L. Jepson 1931-3-21 15712 Contra Costa Grizzly Peak; face, s slope, 600 ft below top Comment
  UC8130  Minuartia douglasii W. H. Brewer 1862-5-5 1048 Contra Costa near Walnut Creek (sw of Camp 69) 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
  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
  UC2028337  Mollugo verticillata Barbara Ertter 2005-8-18 18635 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
  UC2070470  Monardella douglasii Barbara Ertter with John Ginochio 2002-6-1 17941 Contra Costa Ginochio Ranch in Arroyo del Cerro on NW side of Mount Diablo, connector road between Government Road and Olofson Homestead. Comment
  UC691409  Monardella douglasii Mary L. Bowerman 1933-6-21 2327 Contra Costa slightly s Bilharan Lodge; Mount Diablo, Donner Canyon Comment
  JEPS112466  Monardella villosa subsp. villosa A. G. Murdock 2004-5-28 291 Contra Costa Pinole Peak 405 Comment
  UC104641  Monardella villosa subsp. villosa Katharine Brandegee June 1905 Contra Costa Martinez Comment
  CAS-BOT-BC327805  Monolopia gracilens Lewis S. Rose 1935-5-16 35166 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC349614  Monolopia major Alice Eastwood 1914-3-14 3803 Contra Costa Byron Springs Comment
  CAS-BOT-BC349619  Monolopia major C. F. Baker 1903-4-27 2796 Contra Costa Byron Comment
  UC618928  Monolopia major R. F. Hoover 1938-3-25 2899 Contra Costa Lone Tree Valley Comment
  CAS-BOT-BC349607  Monolopia major Ira L. Wiggins 1930-4-17 4563 Contra Costa 1 mi. east of Mountain House on road to Byron Comment
  UCD134571  Monolopia major Mrs. Saunders 1925-3-21 s.n. Contra Costa near Byron. Comment
  UC692019  Montia fontana Mary L. Bowerman 1939-3-31 3736 Contra Costa Spring in bend of road to Barbecue Terrace ((off South Road), Mount Diablo); Mount Diablo Comment
  CAS-BOT-BC444824  Montia fontana Joseph Andorfer Ewan 1935-2-3 9083 Contra Costa Wildcat Creek 2 1/2 mi. below Orinda road bridge. Comment
  CAS-BOT-BC83285  Myosurus minimus M. K. Curran 1884-1-1 s.n. Contra Costa Near Antioch. Comment
  CAS-BOT-BC83288  Myosurus minimus Herbert L. Mason 1952-4-14 14263 Contra Costa 3.5 miles south of Byron. Comment
  CAS-BOT-BC83292  Myosurus minimus Herbert L. Mason 1952-4-26 14269 Contra Costa 3.5 miles south of Byron. Comment
  CHSC22992  Myosurus minimus Robert A. Schlising 1962-3-24 2107 Contra Costa Coast Ranges. 'Bee meadow' near Jct Hwy 4 and Bixler Rd. Comment
  UC1101327  Myosurus minimus Herbert L. Mason 1952-4-14 14262 a Contra Costa 3.5 mi s of Byron Comment
  UC634927  Myosurus minimus H. L. Mason 1932-3-20 6854 Contra Costa Briones Road Comment
  UCD96579  Myosurus minimus Roman Gankin 1958-3-8 s.n. Contra Costa ca. 3 miles south of Byron. Comment
  UCR141655  Myriophyllum sibiricum M. R. Bell 1950-10-9 s.n. Contra Costa Near Concord, farm of E.J. Mangini Comment
  CDA36299  Myriophyllum spicatum Ed Finley, Mark Lubinski 1988-9-26 Contra Costa Brentwood, Cruiser Haven Marina. 7000 Orwood Road. 0 Comment
  UC2031468  Myriophyllum verticillatum Barbara Ertter with Brad Olson 1991-9-28 10837 Contra Costa San Pablo Reservoir between Orinda and El Sobrante Comment
  UC2042751  Myriophyllum verticillatum Barbara Ertter with Lynne Hosley 1991-9-22 10822 Contra Costa Lafayette Reservoir in hills SW of Lafayette, in water at E end of dam. Comment
  RSA755539  Najas guadalupensis Barbara Ertter, Brad Olson 1991-9-28 10838 Contra Costa San Pablo Reservoir between Orinda and El Sobrante 91 Comment
  UC2028279  Narcissus pseudonarcissus Barbara Ertter with Laura Fujii 1999-3-7 16485 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, near Alvarado Staging area at NW end of park, along hiking road. Comment
  CAS-BOT-BC259903  Nassella lepida Mary L. Bowerman 1935-5-1 2936 Contra Costa Mount Diablo. North Road 2 miles from North Gate Comment
  JEPS100037  Nassella pulchra S. O'Neil 2003-3-11 SEO 18 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC692412  Nassella pulchra M. L. Bowerman 1935-4-26 2902 Contra Costa Indian Ceremonial Spring, W of Mount Diablo 1021 Comment
  UC790940  Nassella pulchra A. A. Beetle 1941-3-28 1718 Contra Costa open cut Orinda Comment
  UCD87459  Nassella pulchra Beecher Crampton 1955-4-11 2472 Contra Costa city of Richmond, East Shore and San Pablo Avenues. 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
  UC23802  Navarretia pubescens W. H. Brewer 1862-5-19 1113 Contra Costa n of Kirkers Pass Comment
  UCD35159  Navarretia squarrosa Beecher Crampton 1950-9-22 621 Contra Costa Vacant lot 1 mile north of Richmond. Comment
  JEPS111832  Nemophila heterophylla A. G. Murdock 2004-3-5 210 Contra Costa Sky Ranch Along fire road bank 160 Comment
  JEPS3138  Nemophila heterophylla W. L. Jepson 1923-4-22 9868 Contra Costa Mt. Diablo Comment
  JEPS3210  Nemophila heterophylla L. Constance, J. L. Morrison 1938-5-5 2190 Contra Costa above Deer Flat (near head of Mitchell Canyon, nw slope of Mount Diablo); nw slope Mount Diablo, nr head Mitchell Canyon 670 Comment
  SJSU6099  Nemophila heterophylla C. O. Dudley 1966-3-30 Contra Costa Briones Hills 10 mi SW of Martinez 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
  UC146146  Nemophila heterophylla Joseph P. Tracy 1903-4-18 1797 Contra Costa e slope of Bald Peak San Francisco Bay Region, , Bald Peak (Berkeley Hills) 304 Comment
  UC24164  Nemophila heterophylla J. Burtt Davy 1895-4-7 907 Contra Costa Antioch Comment
  UC24165  Nemophila heterophylla J. Burtt Davy 1895-4-7 916 Contra Costa Antioch (dry hillsides) Antioch Comment
  UC691698  Nemophila heterophylla Mary L. Bowerman 1930-6-10 308 Contra Costa summit Mount Diablo; Mount Diablo Comment
  UC727741  Nemophila heterophylla Milo S. Baker 1946-4-20 11328 Contra Costa summit s Clayton; Summit s of Clayton Comment
  UC67129  Nemophila heterophylla Harley P. Chandler 1900-3-23 580 A Contra Costa Briones Valley , Briones Valley (Region of San Francisco Bay) Comment
  SEINET3156480  Nemophila insignis L. S. Rose 1941-3-13 41029 Contra Costa 3 miles W of Byron 30 Comment
  UC67147  Nemophila menziesii Harley P. Chandler 1900-3-23 595 Contra Costa Briones Hills San Francisco Bay Region, Briones Hills Comment
  UC67148  Nemophila menziesii Harley P. Chandler 1901-4-5 970 Contra Costa Mt. Diablo Comment
  RSA421347  Nemophila menziesii var. menziesii Mark Morris 1929-2-22 s.n. Contra Costa Mt. Diablo. Comment
  UC2027804  Nemophila menziesii var. menziesii Barbara Ertter with Holly Forbes 1997-4-20 15554 Contra Costa North base of Mount Diablo, trail to Back Creek from Mitchell Canyon trailhead. Comment
  JEPS112085  Oemleria cerasiformis D. G. Kelch 2004-3-5 04 .14 Contra Costa Sky Ranch Dutra Fire Road. Franklin Canyon 90 Comment
  UC1005624  Oemleria cerasiformis Frank W. Gould 1940-3-2 873 Contra Costa n side Grizzly Peak 289 Comment
  UC2028047  Oemleria cerasiformis Barbara Ertter 1998-2-15 15916 Contra Costa Shell Ridge Open Space on northwest base of Mount Diablo, Coyote Creek upstream from Joaquin Pond. Comment
  UCSB25483  Oemleria cerasiformis Rieser, D. 1966-4-5 Contra Costa Tarry In., 0.8 mi. north from Sleepy Hollow Road, Orinda. 304 Comment
  RSA0027719  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
  JEPS43995  Oenothera deltoides subsp. howellii Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  NY233529  Oenothera deltoides var. howellii A. Eastwood 1936-4-19 2147 Contra Costa Comment
  JEPS100065  Olea europaea A. Langston 2003-7-24 AL 70 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1952821  Olea europaea Barbara Ertter with David Gowen 2010-11-17 20701 Contra Costa north face of Lime Ridge Open Space (City of Walnut Creek). Comment
  UC2028046  Olea europaea Barbara Ertter 1998-3-1 15921 Contra Costa Shell Ridge Open Space on northwest base of Mount Diablo, Sulfur Creek upstream from Good's Spring. Comment
  JEPS122909  Orobanche bulbosa Adam C. Schneider 2015-5-22 936 Contra Costa Eagle Peak Trail of Mt. Diablo State Park. Comment
  RSA0059169  Orobanche bulbosa F. T. Bioletti 1894-5-13 11693 Contra Costa Mt. Diablo. Comment
  UC2045289 Image available Orobanche fasciculata Mary L. Bowerman 1930-6-28 408 Contra Costa Meridian Peak near summit (?) Comment
  UC1607664  Orobanche uniflora Barbara Ertter with Michelle Seidl 1992-3-14 10918 Contra Costa Morgan Territory Regional Preserve e of Mount Diablo; Morgan Territory Regional Preserve Comment
  UC27900  Orobanche uniflora subsp. occidentalis W. H. Brewer 1862-5-23 1152 Contra Costa SE of Mount Diablo. Comment
  SEINET10549722  Orthocarpus purpurascens John T. Middleton 1936-4-10 Middleton 134 D Contra Costa Deer valley. Comment
  JEPS111599  Osmorhiza berteroi A. G. Murdock 2004-4-30 263 Contra Costa Vaca Canyon 165 Comment
  UC2062642  Osmorhiza brachypoda Barbara Ertter with Mike Park, David Gowen, and Victoria Seidman 2004-4-26 18371 Contra Costa Curry Canyon between Alder Creek and Rhine Canyon, south side of Mount Diablo. 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
  JEPS111578  Oxalis pes-caprae D. G. Kelch 2003-3-21 03 .53 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  UC2070526  Oxalis pes-caprae Barbara Ertter 2003-3-28 18138 Contra Costa Round Valley Regional Preserve, mouth of Hardy Canyon along High Creek. Comment
  UCR263529  Panicum capillare Barbara Ertter, Lisa M. Schultheis 1996-9-2 15283 Contra Costa South Gate Road, south side of Mount Diablo, not far inside park entrance near base of mountain 500 Comment
  SEINET10959961  Panicum capillare Barbara J. Ertter, Lincoln Constance 1995-6-16 Ertter 14262 Contra Costa East edge Dow Marsh on west side Antioch Marina, south side San Joaquin River in Delta area, mud on riprap. Comment
  HSC94231  Papaver heterophyllum C. Newberry 1994-4-30 7247 Contra Costa Mt. Diablo State Park, trail from Mitchell Canyon parking to Donner Creek 900 Comment
  CDA9544  Parapholis incurva D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 9 .221 Contra Costa Byron Airport. Comment
  CDA4220  Paraserianthes lophantha D. G. Kelch 2006-12-2 6 .509 Contra Costa Carquinez Strait; Along drainage channel under Zampa Bridge, Crockett. Comment
  UC1111579  Parietaria hespera var. californica Herbert L. Mason 1929-5-5 5260 Contra Costa Nortonville Comment
  JEPS111919  Parietaria judaica Dean G. Kelch and Andrew G. Murdock 2004-4-11 DGK 04 .078 Contra Costa Crockett - Crolona Heights. 6th Street at Lillian Street. Comment
  CAS-BOT-BC259649  Paspalum dilatatum Virginia I. Dains; Walter Knight 1986-8-8 5498 Contra Costa Contra Costa - San Joaquin Delta Area. Jct Rock S1 and Werner Cut, above high water mark on east facing levee Comment
  UC1606289  Paspalum distichum Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10870 Contra Costa just w Antioch (Dow Wetlands Preserve); Dow Wetlands Preserve Comment
  UC1789178  Passiflora tarminiana Barbara Ertter 1999-9-17 16846 Contra Costa south edge of El Cerrito at northeast base of Albany Hill, edge of paved lot at southwest corner of junction San Pablo Avenue and Carlson Avenue, near Cerrito Creek. Comment
  JEPS87902  Pectocarya pusilla Barbara Ertter, Lynne Hosley 1993-4-17 11508 Contra Costa ca. 10 air mi. n. Livermore (hills in lee of Mt. Diablo, e. side of open meadow along Blue Oak trail, Morgan Territory); Morgan Territory 609 Comment
  UC766190  Pectocarya pusilla R. F. Hoover 1938-5-4 3351 Contra Costa peak to the e Tassajero Creek Comment
  HSC101963  Pedicularis densiflora Nikolaus Gillen, Michelle Bihler 2014-3-20 15 Contra Costa Mount Diablo State Park. Eagle Peak Trail. 649 Comment
  JEPS10410  Pedicularis densiflora W. L. Jepson 1899-4-19 21287 Contra Costa Las Trampas Ridge Comment
  UC27313  Pedicularis densiflora W. L. Jepson Contra Costa Mount Diablo Comment
  SD234195  Pedicularis densiflora Virginia Pinkus Ryder 1965-2-12 308 Contra Costa Mt. Diablo. 456 Comment
  UCD123307  Pedicularis densiflora Robert C. Bechtel 1952-4-12 54 Contra Costa Mt. Diablo. Comment
  UC198950  Pediomelum californicum H. M. Hall and F. M. Essig 1916-5-31 10133 Contra Costa Summit Mount Diablo Comment
  UCD108147  Pediomelum californicum P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  RSA91021  Pediomelum californicum F. W. Peirson 1923-7-1 3618 Contra Costa Near summit of Mt. Diablo. Comment
  SEINET11713741  Pellaea andromedifolia M. T. Doutt 1930-1 90 Contra Costa Marsh Creek Comment
  NY583831  Penstemon centranthifolius L. S. Rose 1933-4-17 33092 Contra Costa Antioch Comment
  UC1050060  Penstemon cordifolius N. Floy Bracelin 1941-7-13 1491 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  RSA0027922  Penstemon heterophyllus subsp. purdyi Barbara J. Ertter 1998-4-4 15972 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, Quarry Hill. Comment
  UC1050858  Penstemon heterophyllus var. purdyi N. Floy Bracelin 1941-5-18 1319 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS108224  Pentachaeta alsinoides David Gowen 2005-5-6 280 Contra Costa Mt. Diablo State Park. South east end of Prospectors Gap Rd., ca 0.3 mile NW of its junction with Ray Morgan Rd. Small area of serpentine outside of the park boundary. Comment
  UC691801  Pentachaeta alsinoides Mary L. Bowerman 1931-4-11 687 Contra Costa Pine Canyon Mount Diablo 121 Comment
  UC697211  Pentachaeta exilis Mary L. Bowerman 1932-3-23 1132 Contra Costa grassy flat e of and overlooking Donner Canyon; Mount Diablo 304 Comment
  CAS-BOT-BC71614  Pentagramma triangularis D. E. Breedlove 1970-4-18 17426 Contra Costa at the north edge of Lafayette above Laurel Drive 243 Comment
  SEINET3873573  Pentagramma triangularis Clayton Newberry 1994-4-30 7252 Contra Costa Mount Diablo State Park, trail from Mitchell Cn. Prkng to Donner Cr.; 0 900 Comment
  JEPS106992  Pentagramma triangularis subsp. triangularis J. Greenhouse with Kevin Hintsa 2004-4-5 5082 Contra Costa Mt. Diablo, Fire Interpretive Trail 1124 Comment
  JEPS112050  Pentagramma triangularis subsp. triangularis D. G. Kelch 2004-3-12 04 .22 Contra Costa Pinole Valley Hillside and canyon above Wright Road. Off of Pinole Valley Road. Contra Costa County, CA 130 Comment
  UC399585  Pentagramma triangularis subsp. triangularis Ivar Tidestrom June 1895 Contra Costa Crockett Comment
  UC1354307  Perideridia californica T. I. Chuang, L. R. Heckard and R. Bacigalupi 1968-4-27 6437 Contra Costa Deer Flat Mt. Diablo Comment
  UC692566  Perideridia kelloggii Mary L. Bowerman 1935-6-28 3158 Contra Costa w meridian (flat on n side); Mount Diablo, Inner Black Hills 472 Comment
  UCD99472  Persicaria lapathifolia Morris Halperin 1930-5-20 s.n. Contra Costa Near Antioch. Comment
  CAS-BOT-BC419326  Persicaria punctata Vincent Jones 1920-8-29 s.n. Contra Costa Orrwood Comment
  JEPS111781  Petrorhagia dubia Christopher Thayer 1995-6-5 Contra Costa West of Pinole Peak 274 Comment
  JEPS112707  Phacelia breweri Dean W. Taylor 1994-3-30 14114 Contra Costa Mt. Diablo (in Mt. Diablo State Park); Juniper Camp, on west slope of Moses Rock Ridge; along fire road that begins at NW end of campground, about 125 m NW of the gate 883 Comment
  UC24298  Phacelia breweri Harley P. Chandler 1901-4-5 969 Contra Costa Mt. Diablo Mt. Diablo (type locality) Comment
  UC691689  Phacelia breweri Mary L. Bowerman 1935-4-26 2898 Contra Costa w Indian Ceremonial Spring; Mount Diablo 1021 Comment
  UC691690  Phacelia breweri Mary L. Bowerman 1933-5-2 1953 Contra Costa below Pioneer Camp; Mount Diablo 762 Comment
  UC735070  Phacelia breweri Lincoln Constance, T. Morley, R. H. Shan, and W. H. Wagner 1946-4-26 3034 Contra Costa below Devil's Pulpit; Mount Diablo, Devil's Elbow 1127 Comment
  UCD102378  Phacelia breweri Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 1070 Comment
  POM65782  Phacelia breweri Herbert McLean Evans 1921-4-30 s.n. Contra Costa Mt. Diablo. Comment
  CDA1102  Phacelia californica D. G. Kelch, A. G. Murdock 2005-5-1 5 .189 Contra Costa Carquinez Strait; Crockett; Edwards Canyon. Comment
  UC672385  Phacelia californica Herbert L. Mason 1928-4-13 4300 Contra Costa cliffs facing Bay Richmond Comment
  UC762369  Phacelia californica R. F. Hoover 1938-3-8 2821 Contra Costa Berkeley Country Club (=Mira Vista C.C.) El Cerrito Comment
  UCD32388  Phacelia californica Beecher Crampton 1950-4-22 533 Contra Costa Contra Costa County, between Concord Valley and Pittsburg, steep hillside of southern exposure in road cut along state highway 4. 152 Comment
  JEPS111841  Phacelia distans D. G. Kelch 2003-4-3 04 .95 Contra Costa Ca ada del Cierbo Upper Ca ada de Cierbo on fire road to cow barn along Cummings Skyway. 70 Comment
  JEPS73329  Phacelia distans Edward Lee 1935-3-10 1297 A Contra Costa e Antioch; Antioch Sand Dunes Comment
  UC107374  Phacelia distans T. S. Brandegee May 1889 Contra Costa Antioch Comment
  UCD102384  Phacelia distans Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 960 Comment
  UCD120412  Phacelia distans P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  RSA276851  Phacelia distans James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  CAS-BOT-BC6694  Phacelia distans var. australis Charles Fuller Baker 1903-4-28 2806 Contra Costa Antioch Comment
  UC107570  Phacelia imbricata T. S. Brandegee 1892-6-9 Contra Costa Port Costa 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
  UCSC000586  Phacelia magellanica R. F. Hoover 1938-3-8 2821 Contra Costa Berkeley Country Club Comment
  UC691330  Phacelia phacelioides Mary L. Bowerman 1933-5-2 1950 Contra Costa below Pioneer Camp; Mount Diablo 762 Comment
  CDA31462  Phacelia tanacetifolia D. G. Kelch 2006-5-27 6 .219 Contra Costa Pinole Valley Park, S of Pinole Valley Road near crest of El Sobrante Ridge. Comment
  JEPS101085  Phacelia tanacetifolia Dean W. Taylor 1992-4-16 12394 Contra Costa S of Byron Hot Springs, in swale draining on E margin of NE1/4 SE1/4 Section 34 45 Comment
  SEINET3158353  Phacelia tanacetifolia L. S. Rose 1933-4-17 33091 Contra Costa Antioch Comment
  UC691701  Phacelia tanacetifolia Mary L. Bowerman 1931-4-19 738 Contra Costa ridge s Deer Flat (by rocks on crest of ridge); Mount Diablo 838 Comment
  JEPS99585  Phalaris aquatica Mary Bowerman Oct 1996 Contra Costa Mount Diablo, Fire Interpretive Trail. Comment
  UC1795888  Phalaris aquatica Barbara Ertter, Rich Rabeler 1994-6-6 12823 Contra Costa Point Isabel in south Richmond; acacia copse at edge of bay at south side of point. Comment
  UC1818956  Phalaris aquatica Barbara Ertter, Kristin Ertter 1995-7-11 14466 Contra Costa Pine Creek on west side of Mt. Diablo southwest of Walnut Creek. Trailhead at Castle Rock; dried grasslands. 121 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
  CAS-BOT-BC259028  Phalaris lemmonii Ira L. Wiggins 1930-4-17 4583 Contra Costa 1/4 mi. s. of Byron Comment
  UC650564  Phalaris lemmonii Ira L. Wiggins 1930-4-17 4583 Contra Costa 1/4 mi s Byron Comment
  CAS-BOT-BC265961  Phalaris minor Mary L. Bowerman 1934-4-21 2533 Contra Costa Muir Area, Mount Diablo Comment
  UCD89358  Phalaris paradoxa Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  UC52449  Phlox gracilis H. M. Hall 1901-3-22 1685 Contra Costa Port Costa San Francisco Bay Region Comment
  UC2028439  Phoenix Barbara Ertter with Chris Thayer 1996-10-25 15357 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park Comment
  JEPS1830  Pholistoma auritum Mary L. Bowerman 1931-4-18 722 Contra Costa Sycamore Canyon 365 Comment
  RSA459276  Pholistoma membranaceum H. de Forest 1930-4-6 s.n. Contra Costa S.E. of Mortonville. Small coal mine ravine. 244 Comment
  UCD120958  Pholistoma membranaceum J. M. Tucker 1981-4-25 4454 Contra Costa Antonio Souza Ranch southwest of Byron (extended Section NW quarter Sec. 31, R3E, T1S, Mt. Diablo Meridian). 309 Comment
  SEINET6630848  Phoradendron flavescens J. A. Ewan 1933-10-15 8040 Contra Costa South west slope of Mt. Diablo Comment
  UC1078910  Phoradendron macrophyllum Job Kuijt 1957-11-3 1439 Contra Costa 3 mi. s. of Wildcat Picnic area turn-off Mt. Diablo 548 Comment
  UC1795770  Phoradendron macrophyllum Barbara Ertter, Brad Olson, Diane Lake, Seth Adams, et al. 1994-9-11 13085 Contra Costa Chaparral Springs addition to Mt. Diablo State Park, north side of Marsh Creek Road at high point southeast of Clayton, open oak woodland (Canyon live oak, blue oak, buckeye); north facing slope with local grove of Fraxinus, Aesculus, toyon. Comment
  CAS-BOT-BC141254  Phoradendron serotinum subsp. tomentosum Mary L. Bowerman 1932-10-22 1636 Contra Costa Road to Quicksilver Mine: Flats at base of N Peak. Mount Diablo Comment
  JEPS111929  Phoradendron serotinum subsp. tomentosum Dean G. Kelch and Andrew G. Murdock 2003-3-21 DGK 03 .038B Contra Costa Martinez - West: Ozol Rock and Scenic Drive. Comment
  JEPS87901  Phoradendron villosum Barbara Ertter, Lynne Hosley 1992-8-29 11264 Contra Costa e Mt. Diablo (Morgan Territory Regional Preserve, along Condor Trail); Morgan Territory Regional Preserve Comment
  UC1618238  Phoradendron villosum Barbara Ertter, Lynne Hosley 1992-8-29 11264 Contra Costa e Mt. Diablo (Morgan Territory Regional Preserve, along Condor Trail); Morgan Territory Regional Preserve Comment
  CAS-BOT-BC260885  Phragmites australis Doreen Smith 2003-10-25 s.n. Contra Costa Martinez shoreline Comment
  UC1949170  Phyla nodiflora var. nodiflora Barbara Ertter 1990-9-10 9634 Contra Costa Briones Regional Park, Briones hills S of Martinez, dried margin of Maricich Lagoon at junction of Alhambra Creek Trail and Old Briones Road Comment
  UC2028238  Phyla nodiflora var. nodiflora Barbara Ertter, Tony Morosco 1998-9-18 16429 Contra Costa Lime Ridge Open Space northwest of Mount Diablo. Comment
  CDA2311  Phyllostachys aurea Barbara Ertter 2001-5-26 17652 Contra Costa Stamm Unit of Antioch Dunes National Wildlife Refuge east of Antioch. 0 Comment
  UC1134138  Pinus attenuata R. W. Lundh 1932-8-27 148 Contra Costa 1 mi w Cave point; Mt. Diablo Quad. 579 Comment
  UCD50247  Pinus attenuata Howard Ferris 2004-8-18 s.n. Contra Costa Flicker Ridge, Contra Costa County. 318 Comment
  JEPS46808  Pinus coulteri W. L. Jepson 1931-4-5 15726 Contra Costa Nortonville Comment
  JEPS47871  Pinus coulteri W. L. Jepson 1909-6-25 3116 Contra Costa Mt. Diablo Comment
  POM287316  Pinus coulteri Lyman Benson 1935-3-16 6280 Contra Costa Mitchell Canyon near Clayton; Mt. Range: Mt. Diablo; Watershed: Walnut Creek. 244 Comment
  UC440232  Pinus coulteri Mrs. H. P. Bracelin 1931-3-22 179 Contra Costa Nortonville Comment
  UC806729  Pinus pinaster Robert E. Burton Contra Costa near Valle Vista (south of Moraga) (n of Redwood road near creek) Comment
  CAS-BOT-BC72776  Pinus sabiniana Mary L. Bowerman 1933-5-10 2070 Contra Costa Mount Diablo, one hundred feet below Muir Area. Comment
  CAS-BOT-BC137271  Piperia elegans John Thomas Howell 1925-9-12 1436 Contra Costa Field redacted by CAS, contact the data manager for more information Comment
  UC2028244  Pistacia atlantica Barbara Ertter, Tony Morosco 1998-9-18 16418 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, western quarry area. Comment
  CDA19635  Pittosporum undulatum M. I. Wibawa 2003-3-1 330 Contra Costa San Francisco Bay Area; Canyon Trail Park off Conlon Ave, El Cerrito. S 0 Comment
  JEPS127046  Plagiobothrys Lowell Ahart, Josephine Guardino 2016-4-19 20770 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
  SEINET3292817 Image available Plagiobothrys Lewis S. Rose 1933-3-29 33046 Contra Costa Pittsburg Comment
  CDA1347  Plagiobothrys acanthocarpus D. G. Kelch 1992-3-21 1825 -A Contra Costa 2.5 mi. SE of Byron; along RR tracks, N of junction of Holey Rd. and Byron Hwy. 0 Comment
  UC691338  Plagiobothrys acanthocarpus Mary L. Bowerman 1933-3-25 1761 Contra Costa Diablo Stock Farm, Emmons Canyon, w fork Stone Valley Canyon Mount Diablo, Stone Valley Canyon, Emmons Canyon Comment
  JEPS111845  Plagiobothrys bracteatus D. G. Kelch 2005-3-25 05 .76 Contra Costa Hercules - Carbon Carbon Road near Route 4 50 Comment
  UC1084390  Plagiobothrys bracteatus G. Thomas Robbins 1937-4-25 149 Contra Costa 2 mi e Alamo Comment
  RSA0027645  Plagiobothrys bracteatus Barbara Ertter 1998-5-3 16058 Contra Costa Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. 274 Comment
  UC1795790  Plagiobothrys bracteatus Barbara Ertter, Mary Bowerman et al. 1995-5-7 14031 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, wet ground around small pond west of road in grassy flat. 304 Comment
  UC2027919  Plagiobothrys bracteatus Barbara Ertter, Dan Norris 2001-4-15 17614 Contra Costa West side Mount Diablo, east end Stonegate Trail. Comment
  UC2070494  Plagiobothrys bracteatus Barbara Ertter 2001-3-18 17568 Contra Costa Shell Ridge Open Space SW of Walnut Creek, Hammmill/Corral Spring Trail north of Ginder Gap. Comment
  SBBG28860  Plagiobothrys canescens L. S. Rose 1933-3-29 33046 Contra Costa Pittsburg Comment
  UC1057488  Plagiobothrys canescens William Hirano 1949-3-29 Contra Costa Byron 50 Comment
  UC882307  Plagiobothrys canescens Lewis S. Rose 1933-3-29 33046 Contra Costa Pittsburg Comment
  UC2028130  Plagiobothrys canescens Barbara Ertter 1998-5-3 16079 Contra Costa Wall Point Road and Emmons Canyon Road, southwest flank of Mount Diablo. Comment
  UC56203  Plagiobothrys fulvus H. M. Hall 1901-3-22 1693 Contra Costa near Clayton; Region of San Francisco Bay Comment
  CAS-BOT-BC277  Plagiobothrys humistratus M. K. Curran 1884-1-1 s.n. Contra Costa near Antioch Comment
  CHSC67895  Plagiobothrys humistratus James D. Jokerst 1989-3-29 3066 Contra Costa 0.25 mi S of Byron Hot Springs NE of Livermore. Comment
  RSA666360  Plagiobothrys leptocladus Barbara Ertter, J. D. Jokerst, D. Magney 1989-4-5 8129 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  JEPS111847  Plagiobothrys nothofulvus D. G. Kelch 2005-3-25 05 .86 Contra Costa Pinole Peak Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak 250 Comment
  UC924233  Plagiobothrys stipitatus var. micranthus H. S. Reed 1940-4-30 355 Contra Costa Marsh Creek road Mount Diablo 243 Comment
  UC726183  Plagiobothrys stipitatus var. stipitatus A. A. Heller 1942-4-12 Contra Costa 5 mi sw Antioch crossing of Brentwood and Marsh Creek Roads Comment
  SBBG40485  Plagiobothrys tenellus W. J. Dress 1951-3-17 3059 Contra Costa Berkeley Hills, just W of Orinda Comment
  UC691336  Plagiobothrys tenellus Mary L. Bowerman 1933-5-8 2033 Contra Costa flat n Rock City Camp; Mount Diablo Comment
  UC191656  Plagiobothrys trachycarpus E. L. Greene 1888-3-28 Contra Costa Byron Springs Comment
  UC78181  Plagiobothrys trachycarpus K. Brandegee May 1892 Contra Costa Antioch Comment
  JEPS116943  Plagiobothrys trachycarpus David Gowen 2008-4-16 863 Contra Costa Just south of parking area for Black Diamond Mines Regional Preserve on Frederickson Road. Comment
  UC2029044  Plagiobothrys trachycarpus Barbara Ertter 2000-3-19 16893 Contra Costa southwest flank of Mount Diablo, east of Pine Ridge, below Wall Point Road Comment
  SEINET3854794 Image available Plantago bigelovii Lewis S. Rose 1933-3-29 33040 Contra Costa Nortonville. Comment
  UC1618130  Plantago coronopus Nancy Hillyard 1997-7-1 Contra Costa Tilden Park in hills behind Berkeley (on Nimitz Trail); Tilden Park, Nimitz Trail 300 Comment
Read comments
Aug 20 2009
  JEPS85619  Plantago elongata Rimo Bacigalupi with G. T. Robbins 1956-3-26 5529 Contra Costa about 2.5 mi s Byron (just s of Southern Pacific Railroad crossing on road to Bethany, bottomlands near head of Italian Slough) 6 Comment
  OBI11669  Plantago elongata Robert F. Hoover 1967-4-28 10516 a Contra Costa Byron Hot Springs Comment
  UC1618337  Plantago erecta Barbara Ertter with John Little 1989-4-2 8109 Contra Costa s end of Hillside Park in El Cerrito Hillside Park; El Cerrito, Hillside Park Comment
  JEPS22022  Plantago lanceolata G. Thomas Robbins with S. Galen Smith 1958-6-2 3854 Contra Costa Just east of crossing of Hastings Slough on road between Port Chicago and Avon Comment
  JEPS21710  Plantago major John Thomas Howell 1955-8-24 30898 Contra Costa near Diablo Country Club Comment
  JEPS87216  Plantago major Lauramay T. Dempster 1991-6-15 Contra Costa Orinda; 15 El Toyonal Comment
  UC1618336  Plantago major Barbara Ertter, B. Olson, D. Lake, L. Hosley and A. Youngson 1991-10-20 10859 Contra Costa Dow Wetlands Preserve just w of Antioch Marina; Dow Wetlands Preserve Comment
  JEPS40290  Platanus racemosa W. L. Jepson 1899-10-7 14869 Contra Costa canyon e Bald Peak; Berkeley Hills Comment
  UCD143180  Platanus racemosa Robt. Branstead 1934-3-30 s.n. Contra Costa SW slope of Mt. Diablo. 426 Comment
  CAS-BOT-BC91604  Platystemon californicus John Thomas Howell 1933-5-14 11278 Contra Costa Hills east of Saint Mary's College. Comment
  UC692173  Platystemon californicus Mary L. Bowerman 1935-3-24 2748 Contra Costa near crest of Treat Avenue (w of Cowell) Mount Diablo Comment
  CAS-BOT-BC91606  Platystemon californicus Alice Eastwood 1906-5-1 s.n. Contra Costa Berkeley. 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
  JEPS6157  Plectritis brachystemon L. T. Dempster 1954-5-18 P 8 Contra Costa Orinda, Lake Cascada Lake Cascada; Orinda, Lake Cascada 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
  UC2027798  Plectritis ciliosa Barbara Ertter with Brad Olson, Dianne Lake 1996-4-14 14587 Contra Costa East side of Mt. Diablo, access from Morgan Territory Road to Prospectors Gap Road, gate between archery range and private ranch Comment
  UC691525  Plectritis ciliosa subsp. ciliosa Mary L. Bowerman 1933-4-9 1835 Contra Costa w fork of Donner Canyon, Mount Diablo Donner Canyon; Mount Diablo, Donner Canyon 243 Comment
  JEPS14517  Plectritis macrocera L. T. Dempster 1956-5-26 1002 Contra Costa above Overhill Court (Orinda); Orinda Comment
  UC28872  Plectritis macrocera Jos. Burtt Davy 1901-4-21 Contra Costa Wildcat Canyon Comment
  UC55888  Plectritis macrocera H. M. Hall 1900-3-23 Contra Costa San Francisco Bay Region, San Pablo Creek San Pablo Creek; San Francisco Bay Region, San Pablo Creek Comment
  UC766304  Plectritis macrocera Robert F. Hoover 1935-3-10 312 Contra Costa Antioch Comment
  UC1112203  Pleuropogon californicus Peter H. Raven with G. Thomas Robbins 1956-4-28 9042 Contra Costa just e of to Martinez (along State Hwy 4) Comment
  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
  UCD90171  Pleuropogon californicus var. californicus Peter H. Raven; G. Thomas Robbins 1956-4-28 9042 Contra Costa Just east of junction to Martinez along State Highway 4. Comment
  CAS-BOT-BC356111  Pluchea odorata Brian Atwater 1978-10-24 BA- 164 Contra Costa Between Bethel Island and Holland Tract Comment
  CAS-BOT-BC356116  Pluchea odorata Virginia I. Dains; Walter Knight 1986-8-8 5497 Contra Costa Antioch Comment
  CDA29001  Poa annua D. G. Kelch 2006-5-7 6 .159 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. 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
  UC1024731  Poa annua Leo Whitney 1935-4-21 3059 Contra Costa Corral Hollow Comment
  UCD90264  Poa annua A. A. Beetle 1942-3-22 2926 Contra Costa Brooks Island in San Francisco Bay. Comment
  CAS-BOT-BC246615  Poa howellii Edward Lee 1936-4-19 2007 Contra Costa Northeast slope of the island. Red Rock, San Francisco Bay Comment
  CAS-BOT-BC246647  Poa howellii Mary L. Bowerman 1933-6-3 2247 Contra Costa Mount Diablo. Meridian Peak summit: ridge north of lower junction of one-way roads Comment
  JEPS99533  Poa howellii Mary L. Bowerman 1979-5-12 Contra Costa Mount Diablo. Prospector's Gap. Trail to North Peak from Devil's elbow. Between Devil's Pulpit and Aug. 1977 burn. 975 Comment
  UC697142  Poa howellii Mary L. Bowerman 1933-6-3 2247 Contra Costa summit Mt Diablo (ridge n of lower junction of 1-way rds) Comment
  POM300703  Poa howellii Mary L. Bowerman 1933-3-21 2148 Contra Costa Below Grape Spring (south from Curry Canyon) Comment
  UC691174  Poa secunda subsp. secunda Mary L. Bowerman 1932-3-27 1140 Contra Costa below Mitchell Rock; Mt Diablo Comment
  UC691181  Poa secunda subsp. secunda Mary L. Bowerman 1932-4-27 1381 Contra Costa s face Oyster Ridge (canyon w of Riggs Canyon); Mt Diablo 335 Comment
  CAS-BOT-BC236383  Poa secunda subsp. secunda Niall McCarten; V. I. Dains 1986-6-1 03231624 34 Contra Costa W of Camino Diablo and Kellogg Creek Comment
  SEINET7973850  Poa secunda var. secunda J. B. Davy 1899-4-19 7856 Contra Costa Las Trampas Creek Comment
  SEINET5554719  Poaceae J. Hamai 1985-1 s.n. Contra Costa Russell Reserve. Comment
  SEINET13947037 Image available Pogogyne Joseph Andorfer Ewan 1936-1 9694 Contra Costa W slope of Bald Peak, San Pablo Ridge Comment
  OBI60316  Pogogyne serpylloides Joseph Andorfer Ewan 1935-5-26 9305 Contra Costa E slope of Bold Peak , San Pablo Ridge 549 Comment
  RSA0022141  Pogogyne serpylloides Mary L. Bowerman 1931-5-21 876 Contra Costa Curry Canon. Hard, open flat by Olafsons barn 274 Comment
  UC1988933  Pogogyne serpylloides John Thomas Howell 1930-4-22 4747 Contra Costa Bald Peak Comment
  UC2028029  Pogogyne serpylloides Barbara Ertter 1997-9-14 15803 Contra Costa WSW base of Mount Diablo, along creek at fence line between Pine Ridge and lower Wall Point Road from Macedo Ranch. Comment
  UC421583  Pogogyne serpylloides John Thomas Howell 1930-4-22 4747 Contra Costa Bald Peak Comment
  UC570734  Pogogyne serpylloides Herbert L. Mason 1924-5-13 1014 Contra Costa Ridge south of Claremont Canyon, Berkeley Hills Comment
  UC691475  Pogogyne serpylloides Mary L. Bowerman 1931-4-11 696 Contra Costa Mount Diablo, Pine Canyon floor Comment
  UC762113  Pogogyne zizyphoroides R. F. Hoover 1941-4-12 4842 Contra Costa 2 miles S of Antioch Comment
  CAS-BOT-BC134040  Polemoniaceae Elsie Zeile 1910-4-2 s.n. Contra Costa Fish R. road Comment
  CDA33833  Polycarpon tetraphyllum D. G. Kelch 2010-5-15 10 .126 Contra Costa Mt. Diablo. Trail from Juniper Camp to Deer Flat. 0 Comment
  UC692129  Polygonum amphibium Mary L. Bowerman 1935-7-22 3182 Contra Costa Chase Pond Mount Diablo (in water 4 feet from shore) 548 Comment
  UC1784185  Polygonum amphibium var. emersum Ethel Crum 1930-9-29 863 Contra Costa Marsh Creek Road to Holt Comment
  CHSC116609  Polygonum aviculare Lowell Ahart; Josephine Guardino 2016-4-19 20782 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. 1.4 miles northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  JEPS51308  Polygonum aviculare subsp. aviculare W. L. Jepson 1891-5-24 Contra Costa Mt. Diablo Comment
  JEPS112029  Polygonum aviculare subsp. buxiforme Dean G. Kelch and Andrew G. Murdock 2005-3-13 DGK 05 .044 Contra Costa Crockett - weedy area under Zampa Bridge. Comment
  CAS-BOT-BC414177  Polygonum aviculare subsp. depressum R. E. Frenkel 1963-9-8 278 Contra Costa On Walnut Blvd., Walnut Creek Comment
  CDA2797  Polygonum cuspidatum G. D. Barbe 1975-10-29 2101 Contra Costa Bank of Lafayette Creek, Mt. Diablo Blvd. at Village Center, Lafayette 0 Comment
  UC1818918  Polygonum lapathifolium Barbara Ertter 1995-8-19 14503 Contra Costa Edge of Cerrito Creek on north side of Albany Hill, south edge of El Cerrito; dense weeds at edge of sluggish water. Comment
  UC1478303  Polypodium Alan R. Smith with Tom Lemieux 1981-11-19 825 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
  CDA42732  Polypodium calirhiza A. G. Murdock 2003-2-21 71 Contra Costa Carquinez Strait Region; Martinez; on top of north-facing hill above train tunnel on Mt. Wanda. Comment
  UC921105  Polypodium calirhiza Ethel Crum 1930-4-14 570 Contra Costa Mitchell Canyon; Mt. Diablo Comment
  UCR254830  Polypogon Peter Rubtzoff 1968-9-18 5966 Contra Costa North Gate Road, c. 5 miles NW of Mt. Diablo State Park north entrance 58 Comment
  UC50640  Polypogon imberbis Jos. Burtt Davy 6662 Contra Costa Salt-marsh near Martinez Comment
  CAS-BOT-BC232583  Polypogon monspeliensis A. A. Beetle 1941-6-24 1750 Contra Costa Point Richmond on San Francisco Bay Comment
  CDA32661  Polypogon monspeliensis D. G. Kelch, Andrew G. Murdock 2004-4-26 4 .135 Contra Costa Carquinez Strait Region; Pt. Pinole. Comment
  UCD91254  Polypogon monspeliensis Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  CAS-BOT-BC232580  Polypogon monspeliensis Niall McCarten; V. I. Daina 1986-6-1 04141057 5 Contra Costa E of Byron Highway, N of Clifton Court Road Comment
  RSA0029363  Polypogon viridis Barbara Ertter, Mary L. Bowerman, Lisa Schultheis 1996-7-5 14917 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  RSA693322  Polystichum munitum Mark Morris 1929-03 s.n. Contra Costa Mt. Diablo. Comment
  SD211523  Potamogeton diversifolius Barbara Ertter, Brad Olson 1991-9-28 10839 Contra Costa San Pablo Reservoir between Orinda and El Sobrante, in shallow water at South end of reservoir 91 Comment
  UCSC000363  Potentilla rivalis var. millegrana I. J. Condit 2008-8-19 s.n. Contra Costa Antioch Comment
  JEPS46549  Proboscidea lutea Mrs. Kate Jared Stirring Sept. 1914 Contra Costa between Concord and Walnut Creek; Ignacio Valley Comment
  JEPS112094  Prunus cerasifera D. G. Kelch 2005-2-28 05 .11 Contra Costa Pinole Valley Near Pinole Valley Road 36 Comment
  UC2027755  Prunus cerasifera Barbara Ertter, Mary Bowerman 1996-11-1 15407 Contra Costa North base of Mount Diablo, lower Donner Creek. Comment
  UC1819021  Prunus dulcis Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14642 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; packed ground of trailside. Comment
  UC691120  Prunus virginiana var. demissa Mary L. Bowerman 1936-6-20 3415 Contra Costa w side of ridge w of Mount Zion (Mount Diablo); Mount Diablo 213 Comment
  JEPS111729  Pseudognaphalium beneolens D. G. Kelch 2004-7-16 04 .318 Contra Costa Martinez - South Pine St. Entrance to Rte 4 heading west 70 Comment
  UC2027968  Pseudognaphalium beneolens Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15663 Contra Costa Point Richmond, crest of road. Comment
  UC1795890  Pseudognaphalium californicum Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14636 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
  SEINET9295311  Pseudognaphalium leucocephalum Unknown 1950-7-29 624 Contra Costa Waste ground along Santa Fe RR. 1 mi N of Richmond, gravelly soil Plant sent to USCH for identification. Query letter included on specimen. Comment
  JEPS75548  Pseudognaphalium ramosissimum P. F. Yorks 1975-8-29 491 Contra Costa on Hampton Road ca 1.6 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Preserve 180 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
  RSA114056  Psilocarphus brevissimus H. L. Mason 1952-4-14 14266 Contra Costa 3.5 miles S of Byron Comment
  UC177448  Psilocarphus oregonus Alice Eastwood 1893-5-5 Contra Costa Brentwood Comment
  UC88451  Psilocarphus oregonus T. S. Brandegee May 1886 Contra Costa Antioch Comment
  CAS-BOT-BC361879  Psilocarphus tenellus John Thomas Howell 1933-5-14 11230 Contra Costa St. Mary's College Comment
  UC35753  Psilocarphus tenellus W. H. Brewer 1862-5-26 1165 Contra Costa canyon near Mount Diablo Comment
  RSA600819  Psoralea physodes Joseph A. Ewan 1934-4-8 8752 Contra Costa Mt. Diablo: Marsh Creek. 243 Comment
  RSA15420  Ptelea baldwinii subsp. crenulata L. S. Rose 1936-4-24 36147 Contra Costa Marsh Creek. 6 miles E of Clayton. 61 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
  RSA0084070  Ptelea baldwinii subsp. crenulata L. S. Rose 1936-4-24 36147 Contra Costa Marsh Creek. 6 miles E of Clayton. 61 Comment
  HSC93960  Ptelea crenulata C. Newberry 1994-4-30 7253 Contra Costa Mt. Diablo State Park, trail from Mitchell Canyon Parking to Donner Creek 900 Comment
  JEPS112113  Ptelea crenulata D. G. Kelch 2004-5-2 04 .172 Contra Costa Crockett - Edwards Canyon 112 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
  SBBG33491  Ptelea crenulata A. D. E. Elmer -May-1903 Contra Costa Mount Diablo Comment
  SJSU5754  Ptelea crenulata C. O. Dudley 1966-5-1 103 Contra Costa Reliez Valley, Briones Hills, N of Lafayette 152 Comment
  UC1561102  Ptelea crenulata Dean Wm. Taylor with Rexford E. Palmer 1987-4-22 8926 Contra Costa Brushy Creek drainage; South Coast Ranges, Brushy Creek, Byron Hot Springs Quad. (1 310 Comment
  UC1602319  Ptelea crenulata H. S. Yates 1935-7-13 5340 Contra Costa 0.5 mi sw Nortonville; Mt. Diablo Quad. 365 Comment
  UC17376  Ptelea crenulata J. Burtt Davy 1895-4-7 909 Contra Costa Antioch 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
  CAS-BOT-BC148619  Ptelea crenulata B. Crampton 1957-7-9 4273 Contra Costa Slopes above Carquinez Straits, 2-3 miles northwest of Martinez Comment
  SBBG3977  Ptelea crenulata J. M. Tucker 1941-8-28 383 Contra Costa Curry Cyn, 3 mi S of jct of Curry Cyn Rd with Clayton-Byron Rd Comment
  UC73566  Ptelea crenulata Milo S. Baker 1904-6-22 Contra Costa Mt. Diablo; above Walker's Comment
  RSA0068501  Pterostegia drymarioides Katie Gallagher, Nick Jensen 2014-4-26 173 Contra Costa Las Trampas Regional Wilderness. 365 Comment
  UC2027949  Pyrus communis Barbara Ertter 1997-9-7 15790 Contra Costa North side Mount Diablo, cabin site on Donner Creek, in persisting orchard. 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
  UCSC009992  Quercus Al Keuter 2014-5-23 00 097 B Contra Costa Along Reliez Valley Road, Lafayette 72 Comment
  CAS-BOT-BC104161  Quercus X morehus H. E. McMinn 82 Contra Costa N slope of Mt. Diablo near summit Comment
  UC1135753  Quercus X morehus R. W. Lundh 1932-9-3 155 Contra Costa 1 mi n North Peak; Mt. Diablo Quad. 609 Comment
  CAS-BOT-BC104166  Quercus X morehus Mary L. Bowerman 1931-9-27 1046 Contra Costa Mount Diablo. Near Quicksilver Mine on N side of North Peak Comment
  JEPS75530  Quercus agrifolia P. F. Yorks 1975-4-10 381 Contra Costa on Hampton Rd ca 1.7 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  RSA758316  Quercus agrifolia Doug Goldman 2004-11-3 2923 Contra Costa South side of Marsh Creek, north side of Morgan Territory Road. 354 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
  CAS-BOT-BC45662  Quercus agrifolia Mary L. Bowerman 1931-9-27 1050 Contra Costa Near Quicksilver Mine on N side of Noth Peak: near gully below road to mine, toward lower limits of oaks, Mount Diablo Comment
  UC5471  Quercus agrifolia A. Resmond 1862-10-24 1474 Contra Costa near summit between Oakland and Walnut Creek Comment
  UC691295  Quercus berberidifolia Mary L. Bowerman 1933-6-21 2341 Contra Costa Median Ridge (Donner Canyon) Mount Diablo Comment
  CDA31069  Quercus chrysolepis D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .232 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  UC405354  Quercus chrysolepis W. P. Taylor 1912-7-22 Contra Costa w side Mt. Diablo Comment
  CAS-BOT-BC86641  Quercus douglasii R. Bacigalupi 1922-9-24 s.n. Contra Costa lower end of Mitchell Canyon Comment
  SEINET14301650 Image available Quercus douglasii Unknown Contra Costa Near North Gate Rd., Mt. Diablo Comment
  CAS-BOT-BC86123  Quercus dumosa Mary L. Bowerman 1932-9-17 1584 Contra Costa Mount Diablo. Donner Canyon, west fork: Bank between forks 304 Comment
  UC691322  Quercus durata Mary L. Bowerman 1931-5-19 873 Contra Costa main e branch Donner Canyon; Mount Diablo 304 Comment
  UC691309  Quercus kelloggii Mary L. Bowerman 1936-8-19 3532 Contra Costa ne-face on s side Pine Canyon mouth (most n w-heading streamlet shown on topographic map (now dry)); Mount Diablo 173 Comment
  UCSC008846  Quercus kelloggii Al Keuter 2014-5-23 AK 00 -096 Contra Costa Along Bear Creek Road at San Pablo Creek. 91 Comment
  UCSC008851  Quercus kelloggii Al Keuter 2014-5-23 AK 00 -094 Contra Costa Along Wildcat Canyon Road on the northeast side of the first range of hills behind Berkeley. 166 Comment
  CAS-BOT-BC105104  Quercus kelloggii Mary L. Bowerman 1936-8-19 3531 Contra Costa Mount Diablo. Pine Canyon mouth, most northerly W-heading streamlet shown on topographic map (now dry): Hillside with W 167 Comment
  UCD47073  Quercus palmeri J. M. Tucker 1981-5-31 4459 Contra Costa California, Contra Costa County: Antonio Souza Ranch southwest of Byron (extended Section NW quarter Sec. 31, R3E, T1S, Mt. Diablo Meridian). 309 Comment
  UCD84948  Quercus palmeri Chuck Hughes 2010-3-29 220 Contra Costa About 0.4 mile south of Vasco Road. 326 Comment
  UCD47151  Quercus parvula var. shrevei H. D. Jones 1910-11-26 s.n. Contra Costa Mt. Diablo, Contra Costa County. Comment
  CAS-BOT-BC104707  Quercus wislizeni John Thomas Howell 1950-6-5 26637 Contra Costa Nortonville Comment
  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
  UC5689  Quercus wislizeni unknown 78 Contra Costa Summit Mt. Diablo Comment
  UC691307  Quercus wislizeni Mary L. Bowerman 1931-10-5 1056 Contra Costa ridge e Rhine Canyon (about halfway-up slope, on spur at s end of ridge (also next canyon to e, which enters Curry Canyon at gate to Olafsons' ranch); Mount Diablo 487 Comment
  CAS-BOT-BC104714  Quercus wislizeni Peter Rubtzoff 1951-10-7 815 Contra Costa 1 to 2 mi SW of Moraga, near the road Comment
  UC691455  Rafinesquia californica Mary L. Bowerman 1935-5-16 2997 Contra Costa near the s boundary Russelman Park; Mount Diablo, Russelman Park 381 Comment
  UC311125  Ranunculus aquatilis A. D. E. Elmer May, 1903 4318 Contra Costa Mount Diablo Comment
  UCR263547  Ranunculus aquatilis var. capillaceus Barbara Ertter, Tony Morosco 1998-7-11 16365 Contra Costa San Francisco Bay Region, North base of Mount Diablo, small pond on north side of Bruce Lee Road east of Mitchell Canyon staging area 183 Comment
  CAS-BOT-BC379109  Ranunculus aquatilis var. diffusus A. D. E. Elmer 1903-5-1 4318 Contra Costa Mount Diablo Comment
  CDA24309  Ranunculus californicus D. G. Kelch, A. G. Murdock 2005-4-15 5 .138 Contra Costa Rodeo Creek. Comment
  UCD95957  Ranunculus californicus P. B. Kennedy 1916-5-11 s.n. Contra Costa Grand View Terrace; Richmond District. Comment
  RSA399401  Ranunculus californicus H. de Forest 1930-3-28 s.n. Contra Costa [Unspecified] Comment
  RSA0068489  Ranunculus californicus var. californicus Katie Gallagher, Nick Jensen 2014-4-26 185 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  UC549110  Ranunculus canus Lyman Benson 1931-3-18 2655 Contra Costa Danville South Coast Mt. Range, Sacramento River Watershed, Mt. Diabl (w base of mt.) 213 Comment
  UCR263546  Ranunculus canus Barbara Ertter, R. K. Brummitt 1998-5-6 16090 Contra Costa San Francisco Bay Region, lower Donner Canyon on north base of Mount Diablo, Hetherington Trail upstream from Donner Cabin 274 Comment
  POM268460  Ranunculus canus Lyman Benson 1931-3-28 2654 Contra Costa Danville; Mt. Range: Mt. Diablo 122 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
  JEPS99975  Ranunculus muricatus G. Smick 2003-4-29 GAS 147 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC692127  Ranunculus muricatus Mary L. Bowerman 1933-4-15 1844 Contra Costa canyon s Arroyo del Cerro (in or bordering stream); Mount Diablo Comment
  SEINET11268259  Ranunculus occidentalis Barbara Ertter, Dan Norris 2001-4-15 17607 Contra Costa Alamo Trail.; 0 213 Comment
  UC2028580  Ranunculus occidentalis Barbara Ertter with Dan Norris 2001-4-15 17607 Contra Costa Diablo Foothills Regional Park. At east end of Alamo Trail. Comment
  UC1055908  Ranunculus repens N. Floy Bracelin 1941-4-20 1217 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS100009  Raphanus raphanistrum G. Smick 2003-4-8 GAS 132 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CHSC75075  Raphanus sativus Roger Thom 1987-5-26 19 Contra Costa 2800 block of Buena Vista Ave. Walnut Creek. 30 Comment
  SEINET11268201  Raphanus sativus Barbara Ertter 1998-6-12 16160 Contra Costa North Gate Road on west flank of Mount Diablo, dogleg in road above raches opposite Angel Kerley trail head.; 0 579 Comment
  CAS-BOT-BC59893  Rhamnus ilicifolia A. D. E. Elmer 1903-5-1 4326 Contra Costa Mount Diablo. Comment
  CAS-BOT-BC200698  Rhus aromatica Mary L. Bowerman 1933-3-25 1776 Contra Costa Emmons Canyon, off Stone Valley Comment
  JEPS77003 Image available Ribes amarum Robert M. Lloyd 1963-3-17 2133 Contra Costa 0.5 mi e Grizzly Peak Road (on Skyline Drive (across from 7090 Skyline Drive), Huckleberry trail); Huckleberry trail Comment
  CDA8368  Ribes californicum D. G. Kelch, A. G. Murdock 2005-1-16 5 .001 Contra Costa Carquinez Strait; Dutra fire road. Comment
  SD2124  Ribes californicum Earle Mulliken 1905-2-5 161 Contra Costa Berkeley Hills. Comment
  UC126876  Ribes californicum Earle Mulliken 1905-1-28 161 Contra Costa Wildcat Canyon Berkeley Hills Comment
  UC578075  Ribes californicum N. French 1933-2-23 32 Contra Costa Berkeley Hills San Farncisco Quadrangle Comment
  CAS-BOT-BC92921  Ribes californicum var. californicum John Thomas Howell 1926-3-7 1669 Contra Costa Mount Diablo. Comment
  CAS-BOT-BC108892  Ribes divaricatum var. pubiflorum Alice Eastwood 1914-3-6 s.n. Contra Costa Redwood Canyon. Comment
  JEPS116743  Ribes divaricatum var. pubiflorum David Gowen 2007-3-22 667 Contra Costa Old Tunnel Rd. south of east entrance to Caldecott Tunnel. Comment
  UC2027990  Ribes divaricatum var. pubiflorum Barbara Ertter 1998-4-19 16028 Contra Costa Tilden Regional Park, Wildcat Creek Trail to Jewel Lake. Comment
  CAS-BOT-BC168923  Ribes malvaceum Alice Eastwood; John Thomas Howell 1936-4-19 2140 Contra Costa Nortonville Comment
  RSA0021636  Ribes malvaceum Alice Eastwood, J. T. Howell 1936-4-19 2140 Contra Costa Nortonville. Comment
  SBBG26906  Ribes malvaceum A. Eastwood, J. T. Howell 1936-4-19 Contra Costa Nortonville Comment
  CAS-BOT-BC168920  Ribes malvaceum Rimo Bacigalupi 1924-2-17 s.n. Contra Costa Lower slopes of Mt. Diablo (Black Hills) along new auto road from Diablo Station, at Garden of the Julgle Gods 457 Comment
  CAS-BOT-BC206016  Ribes menziesii Mary L. Bowerman 1944-6-19 3894 Contra Costa Mount Diablo. Summit Comment
  JEPS111987  Ribes menziesii D. G. Kelch 2005-3-25 05 .80 Contra Costa Fernandez Ranch Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak. 150 Comment
  JEPS79394  Ribes menziesii Edward Lee with Annetta Carter 1936-5-24 2167 Contra Costa 10 mi from Marsh Creek Road; Mt. Diablo, Morgan Territory Comment
  UC1127445  Ribes menziesii H. S. Yates 1936-3-14 5364 Contra Costa 2 1/2 mi sw Round Valley; Mt. Diablo Quadrangle Comment
  UC692236  Ribes menziesii Mary L. Bowerman 1931-4-19 739 Contra Costa Deer Flat, near spring by trail at upper end of flat Mount Diablo Comment
  UC692437  Ribes menziesii Mary L. Bowerman 1933-6-3 2232 Contra Costa Meridian Peak summit, on the stony bank bordering n edge of one-way rd. Mt. Diablo Comment
  JEPS116868  Ribes menziesii David Gowen 2007-9-1 790 Contra Costa Huckleberry Regional Preserve. Along trail descending to canyon bottom near trail junction above creek. Comment
  UC2029137  Ribes menziesii Barbara Ertter with Alan Prather 2003-6-7 18204 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, west end Stone Corral Trail south of Highland Ridge Trail junction. Comment
  JEPS111985 Image available Ribes sanguineum var. glutinosum D. G. Kelch 2004-6-19 04 .285 Contra Costa Crockett - West Valona north-facing hill above/along railroad tracks. West of Carquinez Bridge. Crockett 20 Comment
  SBBG98261  Ribes sanguineum var. glutinosum J. A. Ewan 1934-3-10 8650 Contra Costa Wildcat Cyn, 1.5 mi below Orinda Rd bridge Comment
  JEPS111953  Ricinus communis D. G. Kelch 2004-7-9 04 .316 Contra Costa Rodeo Shore 2 Comment
  POM301018  Rigiopappus leptocladus Mary L. Bowerman 1933-5-8 2016 Contra Costa Fossil Ridge near crest, on north side by side road; Mount Diablo. Comment
  UC2062641  Rorippa curvipes Barbara Ertter with Jim Dunne, David Gowen, Lech Naumovich 2009-12-3 197801 Contra Costa Mudflats at upper (south) end of San Pablo Dam Reservoir northwest of Orinda. Comment
  CAS-BOT-BC74411  Rorippa curvisiliqua Walter Knight; Joanne Dean 1978-8-14 3171 Contra Costa Browns Island. Comment
  CDA28956  Rorippa palustris subsp. occidentalis D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .249 Contra Costa CA Delta; Along the old San Joaquin River Channel, S of Clifton Court Forebay and SE of Byron. Comment
  JEPS112081  Rosa californica D. G. Kelch 2003-8-13 03 .123 Contra Costa Vaca Canyon 165 Comment
  SEINET10543521  Rosa californica Walter H. Lewis, Barbara J. Ertter 2005-2-8 Lewis 15910 Contra Costa Marsh Creek Rd at Power Line Crossover, north foot of Mt. Diablo by Marsh Creek; large colony along creek, open live oak woods. Comment
  CAS-BOT-BC148106  Rosa gymnocarpa Paul F. Covel 1936-4-19 209 Contra Costa Las Trampas Canyon Comment
  OBI10018  Rosa gymnocarpa H. E. McMinn 1932-1 5278 Contra Costa Orinda Comment
  JEPS102898  Rosa spithamea Barbara Ertter, Brad Olson 1997-11-1 15878 Contra Costa Knobcone Point Road E of Balancing Rock Mount Diablo 548 Comment
  UC2027880  Rubus armeniacus Barbara Ertter with Mary Bowerman 1996-11-1 15404 Contra Costa North base of Mount Diablo, lower Donner Creek between trailhead and cabin site. Comment
  POM300600  Rubus parviflorus Mary L. Bowerman 1933-5-19 2140 Contra Costa Below Morgan Sulphur Spring. 335 Comment
  CAS-BOT-BC147205  Rubus parviflorus Mary L. Bowerman 1933-11-4 2464 Contra Costa Alder Creek Springs 487 Comment
  CDA924  Rubus ursinus D. G. Kelch 2006-5-5 6 .129 Contra Costa East Bay; Wildcat Canyon Regional Park. Near Wildcat Canyon Road terminus. Comment
  UC12996  Rubus ursinus W. H. Brewer 1862-5-17 1107 Contra Costa Canyon n Monte Diablo; Canyon n of Monte Diablo 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
  UC1819022  Rumex conglomeratus Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14635 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
  UC6975  Rumex crispus J. Burtt Davy 1895-4-8 977 Contra Costa Antioch Comment
  UCR78377  Rumex obtusifolius Barbara Ertter, Jim Jokerst, Dave Magney 1989-4-5 8122 Contra Costa San Joaquin Valley, Clifton Court Forebay, c. 15 air miles southwest of Stockton 0 Comment
  UC692209  Rumex salicifolius var. salicifolius Mary L. Bowerman 1935-10-26 3346 Contra Costa 2 rd mi e Mount Diablo west entrance; Mount Diablo 228 Comment
  UC2028968  Rumex transitorius Barbara Ertter with Brad Olson et al. 2000-6-2 17299 Contra Costa north side Brushy Peak Regional Preserve NE of Livermore. 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
  UC1197438  Rupertia physodes Joseph P. Tracy 1934-4-30 13195 Contra Costa near Lafayette 152 Comment
  CDA23066  Sagina apetala D. G. Kelch, D. A. Weinstein 2008-5-5 8 .094 Contra Costa Carquinez Strait; Richmond. W Chevy s Hill. N parking lot of Hilltop Mall. Comment
  UCR265185  Salicornia pacifica Barbara Ertter, Elizabeth Neese 1988-10-15 7974 Contra Costa Central Coast, El Cerrito, west of Hwy I-580, west side along Rydin Road north of Central Avenue 4 Comment
  UC69376  Salix Wm. W. Mott 1905-3-11 Contra Costa n.e. corner of San Pablo and McAvoy Lane Comment
  CAS-BOT-BC103028  Salix bonplandiana Walter Knight; R. Bensler; B. Atwataer; J. Dean; B. Mortensen 1979-4-13 3367 Contra Costa Near South Landing. Browns Island Comment
  CAS-BOT-BC129918  Salix bonplandiana Mary L. Bowerman 1933-4-15 1854 Contra Costa Mount Diablo - canyon south of Arroyo del Cerro 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
  UC691958  Salix exigua var. hindsiana Mary L. Bowerman 1935-5-30 3080 Contra Costa by Donner Canyon stream Donner Canyon; Mt. Diablo, Donner Canyon 152 Comment
  UC407388  Salix gooddingii Ira L. Wiggins 1930-4-18 4591 Contra Costa levees, Jersey Isl. Jersey Isl. Comment
  CAS-BOT-BC104088  Salix hindsiana Ira L. Wiggins 1930-4-18 4587 Contra Costa Levee banks, Jersey Island Comment
  JEPS112249  Salix laevigata A. G. Murdock 283 Contra Costa Refugio Valley 120 Comment
  SEINET3158569  Salix laevigata H. P. Chandler 1901-3-22 858 Contra Costa Pacheco Comment
  UC437379  Salix laevigata J. Burtt Davy 1895-4-13 1011 Contra Costa near Lafayette Comment
  UC651296  Salix laevigata Ira L. Wiggins 1930-4-18 4603 Contra Costa levee banks Jersey Isl. Comment
  UC691924  Salix laevigata Mary L. Bowerman 1935-6-1 3119 Contra Costa by rd. just below Silver Springs Grapevine Picnic Grounds; Mt. Diablo 853 Comment
  UC692051  Salix laevigata Mary L. Bowerman 1931-3-1 529 Contra Costa near n gate Mt. Diablo 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
  UC692032  Salix lasiolepis Mary L. Bowerman 1931-3-14 567 Contra Costa Riggs Canyon Mount Diablo (e side) Comment
  CAS-BOT-BC129600  Salix lasiolepis var. lasiolepis Mary L. Bowerman 1931-4-11 701 Contra Costa Mouth of Pine Canyon, on bank of dry stream bed - Mount Diablo Comment
  CDA37041  Salsola australis P. Akers 2003-10-7 B 107 Contra Costa San Joaquin Valley; Contra Costa water district, E edge of Discovery Bay on Hwy 4. 7 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
  CAS-BOT-BC233286  Salvia mellifera C. F. Baker 1903-4-28 2945 Contra Costa Mitchell Canyon, Mt. Diablo Comment
  RSA15471  Salvia mellifera Alice Eastwood, J. T. Howell 1936-4-19 s.n. Contra Costa Nortonville. Comment
  SEINET5570354  Salvia mellifera H. S. Gentry 1931-1 49 Contra Costa Collected near Buckle Point Mt. Diablo. Comment
  CAS-BOT-BC235007  Sambucus Alice Eastwood 1921-4-18 10304 Contra Costa Antioch Comment
  CAS-BOT-BC238631  Sambucus nigra subsp. caerulea Alice Eastwood 1921-4-18 10281 Contra Costa Antioch Comment
  JEPS259  Sanicula bipinnata W. L. Jepson 1925-4-26 10695 Contra Costa Mt. Diablo Comment
  POM224440  Sanicula bipinnata Alice Eastwood, J. T. Howell 1936-4-19 s.n. Contra Costa Nortonville. Comment
  SEINET13945126 Image available Sanicula bipinnata Lewis S. Rose 1934-1 34063 Contra Costa 3 mi. E. of Clayton Comment
  UC1123182  Sanicula bipinnatifida C. M. Belshaw 1936-5-12 2107 Contra Costa 5 mi s of Round Valley 487 Comment
  CDA38526  Sanicula crassicaulis D. G. Kelch 2003-4-3 3 .367 Contra Costa Carquinez Strait Region; Cummings Skyway. Comment
  UC1948950  Sanicula crassicaulis William J. Ferlatte, L. Maynard Moe 1970-4-27 1226 Contra Costa San Francisco Bay: Red Rock Island Comment
  PASA1824  Sanicula menziesii Annetta Carter 1929-3-31 Contra Costa Near Clayton. Hills north of Mt. Diablo Comment
  UC735123  Sanicula saxatilis Lincoln Constance, T. Morley, R. H. Shan, W. H. Wagner 1946-4-26 3036 Contra Costa summit s.w. of lookout Mt. Diablo 1158 Comment
  UC766927  Sanicula tuberosa R. F. Hoover 1935-3-10 301 Contra Costa Nortonville Comment
  UCSC000344  Saxifraga californica H. S. Yates 1936-3-14 5357 Contra Costa Mt. Diablo, Marsh Creek 381 Comment
  CAS-BOT-BC111482  Schoenoplectus americanus Walter Knight; I. Knight; E. McClintock; John Thomas Howell; B. Doyle; P. Rae 1978-9-5 3214 Contra Costa Browns Island, Botany Cove Comment
  CAS-BOT-BC111485  Schoenoplectus americanus Walter Knight 1977-6-10 s.n. Contra Costa Black Diamond Regional Preserve. Sand Creek, near coal mining site of Stewartville 158 Comment
  SEINET10319578  Schoenoplectus americanus W. Knight 1977-6-10 s.n. Contra Costa Sand Creek near coal-mining site of Stewartville 158 Comment
  POM181474  Schoenoplectus californicus I. L. Wiggins 1930-4-18 4592 Contra Costa Jersey Island. Comment
  JEPS46490  Scirpus W. L. Jepson 1919-1-5 8201 Contra Costa Antioch San Joaquin River (on beach) Comment
  CDA39151  Scirpus maritimus A. G. Murdock 2004-5-28 300 Contra Costa Carquinez Strait; Luzon. 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
  UC692194  Scirpus microcarpus Mary L. Bowerman 1942-10-4 3851 Contra Costa Mount Diablo Mount Diablo (Russelman Park Road) 243 Comment
  CDA39144  Scirpus microcarpus D. G. Kelch 2003-4-13 3 .137 Contra Costa Carquinez Strait; Pinole Creek. Comment
  UC691605  Scrophularia californica Mary L. Bowerman 1930-6-18 344 Contra Costa Dan Cook Canyon Mt Diablo Comment
  JEPS100143  Scrophularia californica subsp. californica G. Smick 2003-4-3 GAS 122 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CHSC39483  Scutellaria tuberosa Tyler Williams 1984-4-18 17 Contra Costa In 10 yd radius of site 4 at Juniper Camp on Summit Rd. in Mount Diablo State Park. 853 Comment
  UC1713668  Scutellaria tuberosa unknown 1027 Contra Costa Walnut Creek Comment
  UC691407  Scutellaria tuberosa Mary L. Bowerman 1931-4-25 766 Contra Costa Mount Diablo, Meridean Peak, between summit and junction of south and west roads Mount Diablo; , Meridean Peak Comment
  UC195562  Senecio aphanactis E. L. Greene 1888-3-25 Contra Costa Byron Comment
  CAS-BOT-BC327382  Senecio aphanactis John Thomas Howell 1933-3-29 10900 Contra Costa Nortonville hills Comment
  CAS-BOT-BC363288  Senecio aronicoides L. R. Abrams 1921-5-25 8033 Contra Costa Summit, Mt. Diablo Comment
  JEPS79323  Senecio flaccidus var. douglasii Edward Lee with Annetta Carter 1935-8-17 1634 Contra Costa Antioch Comment
  RSA762308  Senecio glomeratus William J. Ferlatte, L. Maynard Moe 1970-4-27 1266 Contra Costa San Francisco Bay, Red Rock Island. Comment
  CDA9545  Senecio vulgaris D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .224 Contra Costa Byron Airport. Comment
  CHSC23334  Senecio vulgaris Willis Ball 1975-2-23 435 Contra Costa Contra Loma Regional Park. In area #1. Ca. 25 yds e of restroom facilities at s end of lake. 30 Comment
  JEPS100174  Senecio vulgaris G. Smick 2003-5-1 GAS 162 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS48275  Sequoia sempervirens W. L. Jepson 1919-1-25 8208 Contra Costa Upper San Leandro Creek by Moraga Ridge Upper San Leandro Creek, Moraga Ridge Comment
  SEINET3876340 Image available Sequoia sempervirens Dusty Mengshol 1963-3-1 13 Contra Costa 923 Mtn. View Drive, Lafayette.; 0 46 Comment
  CDA33679  Sesbania punicea Leopando & Yost 2010-8-18 PDR# 1649543 Contra Costa Martinez: Central Ave. 0 Comment
  CDA37437  Sesbania punicea D. G. Kelch, Mike Perlmutter 2011-9-23 11 .764 Contra Costa Antioch. Dow Wetlands. Comment
  UCD92599  Setaria parviflora John Thomas Howell; Gordon H. True 1972-6-29 48933 Contra Costa Byron Hot Springs. Road southeast of Byron. Comment
  JEPS127099  Sherardia arvensis Lowell Ahart, Josephine Guardino 2016-4-19 20802 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
  JEPS111785  Silene gallica D. G. Kelch 2004-4-30 04 .153 Contra Costa Mt. Wanda - Martinez 115 Comment
Read comments
Oct 13 2009
  RSA128364  Sinapis arvensis P. H. Raven 1950-3-5 1405 Contra Costa 0.75 mile from place where it meets Orinda - Richmond Road, Bear Creek Road. 107 Comment
  CDA3865  Sisymbrium altissimum R. DeBoer, J. Moon 1961-4-18 Contra Costa Railroad yard, 101 Garrard Boulevard, Richmond. 0 Comment
  JEPS100077  Sisymbrium officinale A. Langston 2003-6-19 AL 49 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD115663  Sisymbrium orientale Collector unknown Date unknown s.n. Contra Costa Contra Costa County. Comment
  JEPS64283  Sisyrinchium bellum W. L. Jepson 1922-5-23 9670 Contra Costa n slope Mount Diablo Comment
  JEPS75489  Sisyrinchium bellum P. F. Yorks 1974-4-28 139 Contra Costa 1.5 km s of Bear Creek Road (on Hampton Road, n of Briones Reservoir); Hampton Road Natural Reserve 160 Comment
  UC692093  Sisyrinchium bellum Mary L. Bowerman 1931-3-14 573 Contra Costa e side Cave Point; Mount Diablo Comment
  UC2070662  Sisyrinchium bellum Barbara Ertter 2002-5-16 17861 Contra Costa Richmond Field Station (UC-Berkeley). Comment
  UC905261  Smilacina racemosa J. A. Rattenbury 1948-5-11 114 Contra Costa 1/2 mi e Oakland Tunnel (on s side of hwy above creek) 243 Comment
  UC1191771  Solanum elaeagnifolium Herbert L. Mason, Verne Grant 1946-9-3 13097 Contra Costa 2 mi w of Pittsburg Comment
  CAS-BOT-BC157456  Solanum umbelliferum D. D. Keck 1933-11-2 2619 Contra Costa 1 mi. S.E. of Oakley Comment
  UC456217  Solanum umbelliferum I. J. Condit 1908-8-20 Contra Costa Oakley Comment
  UC691760  Solanum umbelliferum Mary L. Bowerman 1931-3-7 553 Contra Costa Mount Diablo, Upper end of South Road Mount Diablo; , South Road Comment
  UC26241  Solanum umbelliferum unknown 1900-3-26 Contra Costa Oakley Comment
  UC1051128  Solanum xanti N. Floy Bracelin 1943-8-22 2584 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS25515  Soliva sessilis Robert Owen 1961-5-19 Contra Costa Tilden Regional Park Botanic Garden Comment
  RSA0068482  Soliva sessilis Katie Gallagher, Nick Jensen 2014-4-26 193 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  SEINET11807909  Sonchus asper W. Knight, Knight, I. 1988-1 6219 Contra Costa Suisun Marsh Comment
  CDA42411  Spartium junceum D. G. Kelch, Vince Guise 2012-7-26 12 .237 Contra Costa Wildcat Canyon Park, Alvarado Unit. 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
  CDA24126  Spergularia macrotheca var. longistyla D. G. Kelch 1992-3-21 1828 -A Contra Costa 2.5 mi. SE of Byron; along RR tracks, N of junction of Holey Rd. and Byron Hwy. 0 Comment
  RSA518738  Spergularia macrotheca var. longistyla Barbara Ertter 1989-4-5 8113 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  JEPS111787  Spergularia macrotheca var. macrotheca D. G. Kelch 2005-3-24 05 .48 Contra Costa Point Pinole Pt. Pinole near wharf 2 Comment
  UC1618134  Spergularia macrotheca var. macrotheca Barbara Ertter 1994-6-18 12836 Contra Costa at se corner of Whittell Marsh (at n end of Richmond, Point Pinole Regional Shoreline); Richmond, Point Pinole Regional Shoreline Comment
  CDA15233  Spergularia marina G. F. Hrusa, D. Crowe 1998-5-8 14362 Contra Costa Sacramento Delta; \ E end of Dow Chemical property at Pittsburg. Comment
  SEINET3840816  Spergularia marina Unknown 2006-7-14 6 .328 Contra Costa East of Martinez, Along Marine Vista avenue immediately west of Pacheco Slough 1 Comment
  RSA0098553  Spergularia marina J. M. Tucker 1963-4-12 3687 Contra Costa On west side of Holey Road, 3 miles southeast of Byron. Comment
  UC2036957  Spergularia rubra Mary L. Bowerman 1946-2-10 4081 Contra Costa Hard ground by C.C.C. camp. Comment
  POM215114  Stachys ajugoides J. T. Howell 1932-10-16 10818 Contra Costa Near San Ramon. Comment
  UC25936  Stachys ajugoides var. rigida W. L. Jepson Contra Costa Fish Ranch Comment
  UC1191915  Stachys albens Malcolm A. Nobs, S. Galen Smith 1949-7-8 943 Contra Costa 4 mi n Kingston (Otto's Black Bass Resort) Comment
  UCD125808  Stachys albens Malcolm A. Nobs; S. Galen Smith 1949-7-8 943 Contra Costa Otto's Black Bass Resort, 4 miles N of Kingston. Comment
  JEPS99541  Stachys pycnantha Mary L. Bowerman 1995-6-4 Contra Costa Mount Diablo. E side of Pine Pond. Comment
  UC2055619  Stachys pycnantha Joseph Andorfer Ewan 1933-10-15 8035 Contra Costa SW slope Mt. Diablo. 1066 Comment
  UC2055623  Stachys pycnantha Joseph Andorfer Ewan 1933-10-15 8043 Contra Costa Mt. Diablo. 1066 Comment
  SEINET9363840  Stachys rigida var. rigida Unknown 1979-4-29 27 Contra Costa Clayton, CA. Russleman Park Road off Marsh Creek Road, Concord Mt. Diablo Trail Ride Assoc. grounds; digger pine - oak woodland. Comment
  JEPS36203  Stebbinsoseris heterocarpa W. L. Jepson 1921-5-22 9215 Contra Costa Half way up Mt. Diablo. Comment
  JEPS36206  Stebbinsoseris heterocarpa W. L. Jepson 1922-5-23 9659 Contra Costa Mt. Diablo Comment
  UC71938  Stebbinsoseris heterocarpa J. Burtt Davy 1895-4-7 960 Contra Costa Antioch Comment
  UC692300  Stellaria media Mary L. Bowerman 1932-3-12 1118 Contra Costa Alamo Canyon Mount Diablo (50 ft above stream) 365 Comment
  UC2027739  Stellaria pallida Barbara Ertter 1997-1-5 15444 Contra Costa Lime Ridge Open Space on northwest side of Mount Diablo, section on north side of Ygnacio Valley Road. Comment
  UC2028464  Stenotaphrum secundatum Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15669 Contra Costa Martinez Regional Shoreline, south edge of Carquinez Strait Comment
  CAS-BOT-BC375205  Stephanomeria elata John Thomas Howell 1925-11-1 1544 Contra Costa Moraga Ridge, Oakland Hills Comment
  UC2028016  Stephanomeria elata Barbara Ertter 1997-9-14 15819 Contra Costa Southwest side of Mount Diablo, Wall Point Road on open sandstone ridge northwest of Wall Point/ Comment
  UCD136361  Stephanomeria exigua subsp. coronaria L. D. Gottlieb 1969-11-2 6959 Contra Costa east of Antioch. West of Kaiser Gypsum Plant at Minaker and Wilbur Roads. Comment
  UC1070309  Stephanomeria virgata subsp. pleurocarpa H. S. Yates 1934-9-2 4066 Contra Costa 1 mi sw Mt. Diablo; Mt. Diablo Quad. 762 Comment
  UC571570  Stephanomeria virgata subsp. pleurocarpa H. K. Sharsmith 1933-9-24 Contra Costa highway w Walnut Creek Comment
  UC691445  Stephanomeria virgata subsp. pleurocarpa Mary L. Bowerman 1930-7-20 411 Contra Costa near Silver Spring (by the road); Mount Diablo Comment
  UC1950089  Stipa cernua Barbara Ertter 1990-5-19 8998 Contra Costa Layfayette Ridge of Briones Regional Park N of Lafayette; S-facing slope S of Russell Peak Comment
  UC2070661  Stipa lepida Barbara Ertter 2002-5-11 17847 a Contra Costa Southwest base of Mount Diablo, lower end of Summit Trail in Dan Cook Canyon ca. half mile from South Gate Road. Comment
  CHSC116631  Stipa pulchra Lowell Ahart; Josephine Guardino 2016-4-19 29793 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the sides ot the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  UC2070615  Stipa pulchra Barbara Ertter 2002-5-16 17851 Contra Costa Richmond Field Station (UC-Berkeley). Comment
  CAS-BOT-BC87344  Streptanthus hispidus Mary L. Bowerman 1930-6-7 280 Contra Costa Mount Diablo. Meridian Peak summit. Comment
  CAS-BOT-BC87346  Streptanthus hispidus Alice Eastwood 1915-5-30 4526 Contra Costa Mount Diablo. Comment
  UC402742  Streptanthus hispidus H. M. Hall 1916-5-31 10139 Contra Costa w side Mt. Diablo 1097 Comment
  UC2028421  Stuckenia pectinata Barbara Ertter 2000-9-30 17533 Contra Costa West side Mount Diablo, pond on China Wall Road ca 1/2 mile NW of Macedo Ranch Comment
  CAS-BOT-BC422916  Stylomecon heterophylla Volney Rattan 1887-5-22 s.n. Contra Costa Alhambra Val. Comment
  JEPS51558  Stylomecon heterophylla W. L. Jepson 1918-6-3 7589 Contra Costa Donner Canyon Mt. Diablo; , Donner Canyon 685 Comment
  JEPS75654  Stylomecon heterophylla W. L. Jepson 1925-4-26 10683 Contra Costa Black Hills Mt. Diablo; , Black Hills Comment
  UC1733834  Stylomecon heterophylla Kay H. Beach 1941-4-30 1078 Contra Costa 7 mi W of Byron; Marsh Creek 30 Comment
  UC30066  Stylomecon heterophylla E. R. Drew 1889-4-26 Contra Costa Martinez Comment
  UC635478  Stylomecon heterophylla H. L. Mason 1928-4-1 4271 Contra Costa hills n Mount Diablo (canyon back of Pittsburg); hills n of Mount Diablo Comment
  CAS-BOT-BC422911  Stylomecon heterophylla John Thomas Howell 1931-5-12 6480 Contra Costa North side of Mt. Diablo Comment
  OBI9066  Styrax redivivus Neil Havlik 1968-5-19 200 Contra Costa In cultivation, Tilden Botanical Garden, Charles Lee Tilden Regional Park, E of Berkeley Comment
  UC7235  Suaeda moquinii T. J. Storer Sep 1899 Contra Costa Byron Springs Comment
  CAS-BOT-BC269564  Symphoricarpos albus var. laevigatus L. R. Abrams 1916-6-30 5720 Contra Costa Mt. Diablo near lake Comment
  UC691623  Symphoricarpos albus var. laevigatus Mary L. Bowerman 1930-8-24 419 Contra Costa Mitchell Canyon Mount Diablo (a little above end of road) Comment
  UC1119949  Symphoricarpos mollis R. W. Lundh 1933-3-30 224 Contra Costa 1.5 mi nw Eastport; Concord Quad. 426 Comment
  JEPS111656  Symphyotrichum chilense Dean G. Kelch and Andrew G. Murdock 2003-9-12 AGM 204 Contra Costa Selby, west of Crockett. Comment
  CAS-BOT-BC98039  Symphyotrichum lentum L. R. Abrams 1917-9-24 6860 Contra Costa Near Concord Comment
  UCD150914  Symphyotrichum lentum James A. Neilson Jr. 1972-10-22 s.n. Contra Costa Walnut Creek drainage, west and south of railroad and leves. Elevation estimated using Google Earth by label maker. 3 Comment
  JEPS111672  Symphyotrichum subspicatum D. G. Kelch 2003-6-22 03 .92 Contra Costa Selby At start of trail on south side in grassland 40 Comment
  UC1735313  Symphyotrichum subspicatum J. C. Semple, B. A. Suripto, T. Ahmed 1990-8-16 9342 Contra Costa Charles Tilden Regional Park, Vollmer Peak, mid elevation Comment
  UCD159500  Symphyotrichum subulatum var. parviflorum D. S. Park 2010-9-11 250 -1 Contra Costa Waterfront Rd. Growing along roadside. Disturbed. Wet. 5 Comment
  UC1607567  Tamarix parviflora Barbara Ertter 1993-4-2 11480 Contra Costa west of Crockett (below Vista Road, abandoned railroad station); Carquinez Regional Park Comment
  JEPS49692  Tellima grandiflora W. L. Jepson 1891-6-9 13461 Contra Costa Fish Ranch Comment
  UC35391  Tetrapteron graciliflorum W. C. Blasdale Mar. 1900 Contra Costa San Pablo Comment
  UC692143  Thalictrum fendleri var. polycarpum Mary L. Bowerman 1935-6-15 3135 Contra Costa on banks of stream Mount Diablo, Mitchell Canyon 640 Comment
  CAS-BOT-BC88249  Thysanocarpus curvipes Alice Eastwood 1923-5-4 11702 Contra Costa Mount Diablo. Comment
  CAS-BOT-BC88256  Thysanocarpus curvipes Katharine Brandegee 1907-5-1 s.n. Contra Costa Antioch. Comment
  JEPS68963  Thysanocarpus curvipes Edward Lee 1935-3-10 1295 Contra Costa e. Antioch (Antioch Sand Dunes); Antioch Sand Dunes Comment
  SBBG29915  Thysanocarpus curvipes L. S. Rose 1933-4-17 33096 Contra Costa Antioch Comment
  UC691144  Thysanocarpus curvipes Mary L. Bowerman 1933-5-8 2031 Contra Costa flat n of Rock City camp grounds Mount Diablo; , n of Rock City camp grounds Comment
  CAS-BOT-BC88254  Thysanocarpus curvipes John Thomas Howell 1934-4-8 11821 Contra Costa Marsh Creek Road southwest of Brentwood. Comment
  UC1543083  Thysanocarpus curvipes Donald G. Nelson 1937-4-24 519 Contra Costa Marsh Creek Road just after making direct turn s from canyon; Marsh Creek Road just after making direct turn s from canyon Comment
  SEINET3166337  Thysanocarpus curvipes subsp. curvipes P. J. Alexander, C. D. Bailey 2009-3-30 970 Contra Costa Mount Diablo State Park, 0.4 miles NE of the summit of Mt. Diablo, SW side of the saddle between the main peak and North Peak, 8.7 miles ESE of central Walnut Creek. 908 Comment
  UC2028333  Thysanocarpus curvipes subsp. elegans Barbara Ertter 1991-5-5 9777 Contra Costa Black Diamond Mines Regional Preserve S of Pittsburg, ridge E of Coal Canyon Comment
  CAS-BOT-BC66959  Thysanocarpus laciniatus J. W. Congdon 1896-5-3 s.n. Contra Costa Mount Diablo. Comment
  UC691141  Thysanocarpus laciniatus Mary L. Bowerman 1931-3-8 564 Contra Costa w slope of Mitchell Canyon near mouth Mount Diablo (Mount Diablo); , w slope of Mitchell Canyon Comment
  JEPS9890  Tonella tenella Mary L. Bowerman 1935-5-18 3023 Contra Costa Mount Diablo; nw-facing slope across the road from, and a little e of, the parking area 1066 Comment
  CDA33815  Tonella tenella D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .112 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  POM300996  Tonella tenella Mary L. Bowerman 1935-5-18 3023 Contra Costa Mount Diablo, Northwest facing slope across the road from, and a little east of, the parking area. 1067 Comment
  JEPS100128  Torilis arvensis A. Langston 2003-7-9 AL 61 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS127668  Torilis nodosa Barbara Ertter with David Gowen and Michael Park 2017-5-2 22816 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  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
  RSA610776  Toxicodendron diversilobum Joseph A. Ewan 1936-7-5 9738 Contra Costa Wildcat Creek Comment
  RSA610777  Toxicodendron diversilobum Joseph A. Ewan 1936-7-5 9737 Contra Costa Wildcat Creek Comment
  UC1130477  Toxicodendron diversilobum R. C. Wilson 1935-2-26 107 Contra Costa 1 mi. s.w. Nortonville; Mt. Diablo Quad. Comment
  CAS-BOT-BC172935  Toxicodendron diversilobum John Thomas Howell 1925-11-1 1541 Contra Costa Ne. side of Moraga Ridge, Oakland Hills Comment
  UCD139856  Toxicoscordion fremontii Laurence S. Jones 1934-4-8 s.n. Contra Costa Mount Diablo. 609 Comment
  CDA31349  Tragopogon porrifolius D. G. Kelch 2010-11-14 10 .447 Contra Costa Carquinez Strait; Rodeo. Between San Pablo Ave and Rodeo Creek in grassy lot. Comment
  JEPS100096  Tribulus terrestris A. Langston 2003-7-9 AL 66 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site 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
  SEINET13948212 Image available Trichostema lanceolatum Lewis S. Rose 1953-1 53095 Contra Costa Mt. Diablo, W slope; 1600 ft alt. 488 Comment
  HSC17937  Trientalis latifolia J. Wendell Howe 1930-5-25 Contra Costa Moraga Rd. Comment
  RSA69005  Trientalis latifolia F. W. Peirson 1926-4-10 6635 Contra Costa San Pablo Reservoir Comment
  UC555490  Trifolium albopurpureum H. L. Mason 1928-4-29 4433 Contra Costa Sycamore Canyon Mt. Diablo, south slope Comment
  SD37268  Trifolium albopurpureum McCallum 1933-4-25 3699 Contra Costa Hillside near Tassajana Comment
  UCD38574  Trifolium albopurpureum Beecher Crampton 1956-5-14 3399 Contra Costa Headwaters of Marsh Creek, southeast of Mt. Diablo. 640 Comment
  UC2028169  Trifolium albopurpureum var. albopurpureum Barbara Ertter 1998-5-3 16074 Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, near Wall Point. Comment
  UC147749  Trifolium albopurpureum var. dichotomum Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  UC16499  Trifolium albopurpureum var. dichotomum Maclean Contra Costa Mt. Diablo Comment
  UC16500  Trifolium albopurpureum var. dichotomum W. H. Brewer 1862-5-16 1114 Contra Costa n Kirker's Pass Comment
  UC16612  Trifolium albopurpureum var. dichotomum Jos. Burtt Davy 1901-4-21 7048 Contra Costa Wildcat Canyon Comment
  UC1819060  Trifolium albopurpureum var. olivaceum Barbara Ertter, Mary Bowerman et al. 1995-5-7 14048 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, grassy flat, roadside vegetation, clay substrate. Comment
  CDA27906  Trifolium bifidum D. G. Kelch, A. G. Murdock 2005-4-2 5 .105 Contra Costa Carquinez Strait Region; Alhambra Valley. EBMUD land. North of intersection of Alhambra Valley Road and Castro Ranch Road. Comment
  CDA29497  Trifolium bifidum D. G. Kelch, Troy MacGregor 2009-5-1 9 .273 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  UC146057  Trifolium bifidum var. decipiens Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  UC55887  Trifolium bifidum var. decipiens H. L. Mason 1901-4-5 1735 Contra Costa Mt. Diablo 670 Comment
  POM19314  Trifolium ciliolatum Katherine Brandegee s.n. Contra Costa Antioch Comment
  UC692461  Trifolium ciliolatum Mary L. Bowerman 1935-5-1 2931 Contra Costa r mi from entrance (w rd); Mount Diablo Comment
  RSA349410  Trifolium depauperatum var. amplectens L. S. Rose 1941-3-27 41068 Contra Costa 2 mi. w. of Byron 61 Comment
  UCSC011138  Trifolium depauperatum var. laciniatum R. Morgan 2015-4-11 6739 Contra Costa Byron Comment
  UC80338  Trifolium depauperatum var. truncatum C. F. Baker 1903-4-27 2863 Contra Costa Byron Comment
  CDA4276  Trifolium fragiferum D. G. Kelch, A. G. Murdock 2005-6-24 5 .389 Contra Costa Carquinez Strait Region; Franklin Canyon at McEwen Road. Comment
  UC2028949  Trifolium fragiferum Barbara Ertter 2000-7-16 17390 Contra Costa lower Pine Creek in Diablo Foothills Regional Park. Comment
  UC631618  Trifolium fucatum P. B. Kennedy 1928-4-19 10051 Contra Costa Byron Hot Springs Comment
  UC419042  Trifolium fucatum H. E. and S. T. Parks 1930-4-1 542 Contra Costa along hwy (in ditches); San Ramone Comment
  UC631616  Trifolium fucatum P. B. Kennedy 1928-4-28 10096 Contra Costa 2 mi from Tunnel (on hwy) Comment
  UCD109005  Trifolium fucatum P. B. Kennedy 1928-4-15 10056 Contra Costa Pinehurst. Comment
  RSA90945  Trifolium fucatum var. fucatum F. W. Peirson, Mabel B. Peirson 1926-4-10 6638 Contra Costa Between Walnut Creek and Martinez. Comment
  UC16557  Trifolium gracilentum W. H. Brewer 1862-5-19 1116 Contra Costa n Kirker's Pass Comment
  UC16558  Trifolium gracilentum W. H. Brewer 1862-4-24 989 Contra Costa Camp 68 Martinez Comment
  UC555459  Trifolium gracilentum H. L. Mason 1932-3-20 6844 Contra Costa Antioch sand hills Comment
  UC692678  Trifolium gracilentum Mary L. Bowerman 1935-4-26 2908 Contra Costa w Indian Ceremonial Springs; Mount Diablo 1005 Comment
  RSA695881  Trifolium gracilentum Barbara Ertter, Chris Thayer 1993-5-7 11712 Contra Costa Ca 1/2 mile N of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land E of Tilden Park. Grazing land on lower slopes S of Wildcat Canyon Road. Comment
  JEPS65901  Trifolium gracilentum var. gracilentum W. L. Jepson May 23 1891-May 24 1891 13689 Contra Costa Mt. Diablo Comment
  CDA29499  Trifolium hirtum D. G. Kelch, Troy MacGregor 2009-5-1 9 .268 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  CDA8356  Trifolium hirtum D. G. Kelch, A. G. Murdock 2005-4-15 5 .148 Contra Costa Carquinez Strait; In East Bay Regional Park land W of Cumming s Skyway near Summit (nr old C&H Sugar diatomaceous earth dump). Comment
  UCD146715  Trifolium incarnatum G. F. Hrusa; D. Crowe 1998-5-8 14364 Contra Costa Sacramento-San Joaquin River Delta. Within Dow Chemical property at Pittsburg. 10 Comment
  UC16620  Trifolium microcephalum W. H. Brewer 1862-5-26 1164 Contra Costa near Mount Diablo Comment
  UC631555  Trifolium microcephalum P. B. Kennedy 1925-4-25 Contra Costa rd to Sycamore Canyon; Mt Diablo Comment
  UC692245  Trifolium microcephalum Mary L. Bowerman 1935-4-26 2910 Contra Costa w Indian Ceremonial Spring; Mount Diablo 1005 Comment
  UCD35902  Trifolium microcephalum Beecher Crampton 1966-4-26 7666 Contra Costa ca. 2.5 miles west of Martinez on the road to Crockett. Comment
  UC692255  Trifolium microdon Mary L. Bowerman 1933-5-17 2111 Contra Costa due s Olafson's barn (branch of Curry Canyon, on ridge between the two forks of the canyon); Mount Diablo Comment
  UC692670  Trifolium microdon Mary L. Bowerman 1935-5-16 2987 Contra Costa Russelman Park Mount Diablo (at end of road) 381 Comment
  UC692640  Trifolium obtusiflorum Mary L. Bowerman 1938-6-14 3678 Contra Costa Maple Spring Mount Diablo Comment
  JEPS128774  Trifolium obtusiflorum Kevin Hintsa 2000-5-30 Contra Costa Mount Diablo State Park, Pine Canyon/Little Yosemite Canyon (upstream from original Epipactis gigantea site) Comment
  UC866918  Trifolium oliganthum Lewis S. Rose 1940-4-30 40252 Contra Costa 6 mi e Clayton (Marsh Creek) 60 Comment
  SJSU5771  Trifolium variegatum C. O. Dudley 1966-4-16 Contra Costa Reliez Valley, Briones Hills N of Lafayette Comment
  CHSC23357  Trifolium variegatum var. major Willis Ball 1975-3-26 515 Contra Costa Contra Loma Regional Park. In area #3. On n facing slope of large hill in area #3. Ca. 60 yds due nw of dam. Comment
  UC692680  Trifolium variegatum var. melananthum Mary L. Bowerman 1932-3-23 1126 Contra Costa betw Monument and Concord (Oak Grove School junction); Mount Diablo Comment
  UC1130132  Trifolium willdenovii C. M. Belshaw 1936-4-8 2071 Contra Costa 2.25 mi e Clayton; Mt. Diablo quad 381 Comment
  UC1197525  Trifolium willdenovii J. P. Tracy 1900-3-24 604 Contra Costa near Stege 9 Comment
  UC16747  Trifolium willdenovii H. P. Chandler 1900-3-24 587 Contra Costa Briones HIlls Mt. Diablo region Comment
  UC16752  Trifolium willdenovii W. H. Brewer 1862-5-12 1075 Contra Costa Mt. Diablo Comment
  UC407376  Trifolium willdenovii Ira L. Wiggins 1930-4-17 4575 Contra Costa 1/4 mi s Byron Comment
  UC55884  Trifolium willdenovii H. M. Hall 1901-3-17 1656 Contra Costa Point Richmond Canyon Comment
  UC630912  Trifolium willdenovii Mrs. K. Brandegee 1907-5-1 Contra Costa Antioch Comment
  UC692646  Trifolium willdenovii Mary L. Bowerman 1933-5-11 2083 Contra Costa Inner Black Hills Mount Diablo Comment
  UC725897  Trifolium willdenovii A. A. Heller 1938-4-9 15017 Contra Costa 3 mi sw Antioch (from type region) Comment
  UC2028157  Trifolium willdenovii Barbara Ertter 1998-4-4 15954 Contra Costa Shell Ridge Open Space northwest of Mount Diablo. Comment
  UC555573  Trifolium willdenovii H. L. Mason 1929-3-29 5132 Contra Costa 2 mi above Clayton (Marsh Creek Rd) Comment
  UC1619920  Triglochin striata Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10714 Contra Costa Browns Island n of Pittsburg (near confluence of Sacramento and San Joaquin Rivers opposite Pittsburg Marina, at (Botany Cove)); Browns Island Comment
  JEPS99565  Triodanis biflora Mary Bowerman 1995-5-28 Contra Costa Mount Diablo, knoll on N side of Wall Point Trail 1/2 encircled on W and N sides by road from macedo Ranch to Pine Pond. 304 Comment
  UC1301191  Triphysaria eriantha subsp. eriantha Helen K. Sharsmith 1963-4-7 5288 Contra Costa e side Kirker Pass road w Antioch (San Francisco Bay Region); , Kirker Pass Road 152 Comment
  UC407378  Triphysaria eriantha subsp. eriantha Ira L. Wiggins 1930-4-17 4571 Contra Costa 1/4 mi s Byron Comment
  CHSC116658  Triphysaria pusilla Lowell Ahart; Josephine Guardino 2016-4-19 20780 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the sides of the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  JEPS49755  Triphysaria pusilla Rimo Bacigalupi, and Alice Howard, and Paul Hutchison 1967-3-29 9221 Contra Costa w slope Las Trampas Ridge (upper reaches of Bolinger Canyon); , w slope Las Trampas Ridge 381 Comment
  UC1562647  Triphysaria pusilla Barbara Ertter with John Little 1989-4-2 8105 Contra Costa Hillside Park El Cerrito (El Cerrito, level portions of old road); , Hillside Park Comment
  UC691572  Triphysaria pusilla Mary L. Bowerman 1933-5-4 1989 Contra Costa (Rock City Ridge) Fossil Ridge Mount Diablo; , (Rock City Ridge) Fossil Ridge Comment
  UCD84950  Triphysaria pusilla Chuck Hughes 2010-3-29 222 Contra Costa About 0.4 mile southeast of Vasco Road. 124 Comment
  UC691567  Triphysaria pusilla Mary L. Bowerman 1935-4-12 2810 Contra Costa West (= North Rd) road immediately w of east line of section 33 Mount Diablo (across the stream from the road) 167 Comment
  CDA41894  Triphysaria versicolor subsp. faucibarbata D. G. Kelch 2005-5-6 5 .228 Contra Costa Carquinez Strait Region; Franklin Canyon. East of Christie Road. South of Route 4. Comment
  UC53698  Trisetum canescens J. Burtt Davy 1900-3-24 6520 Contra Costa Pt. Richmond Comment
  CHSC21624  Triteleia laxa Willis Ball 1975-3-25 505 Contra Costa In area #1. On s side of road leading to main parking lot at s end of lake ca. 35 yds e of parking lot. Contral Costa Regional Park. 38 Comment
  UC3318  Triteleia laxa W. H. Brewer 1862-4-25 995 Contra Costa Martinez Comment
  UC691988  Triteleia laxa Mary L. Bowerman 1931-4-18 721 Contra Costa Sycamore Canyon Mount Diablo Comment
  CAS-BOT-BC526330  Triteleia laxa Volney Rattan 1879-1-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC67405  Tropidocarpum gracile H. L. Mason 1932-3-20 6842 Contra Costa Antioch. Comment
  CAS-BOT-BC67408  Tropidocarpum gracile Niall McCarten; V. I. Dains 1986-6-11 03231145 Contra Costa 500 yards west of Camino Diablo bridge over Kellogg Creek. Comment
  JEPS111912  Typha latifolia Dean G. Kelch and Andrew G. Murdock 2004-5-28 AGM 282 Contra Costa Refugio Valley. Comment
  JEPS36207  Uropappus lindleyi W. L. Jepson 1922-5-23 9669 Contra Costa n slope Mt. Diablo; n slope Mt. Diablo Comment
  RSA0029769  Urospermum picroides Barbara Ertter 1990-6-18 9133 Contra Costa Tilden Regional Park, along Nimitz hiking/bicycle trail near Inspiration Point. Comment
  RSA446066  Urtica dioica subsp. holosericea M. B. Dunkle 1931-7-18 2504 Contra Costa Strawberry Canyon, Berkeley 152 Comment
  CAS-BOT-BC199242  Vaccinium ovatum W. W. Carruth 1901-5-1 s.n. Contra Costa Redwood Canon [Canyon] Comment
  CDA28946  Valerianella locusta D. G. Kelch, Kaye Smith 2009-4-18 9 .147 Contra Costa Rodeo. Garden in Housing project. Comment
  UC2070590  Verbena bonariensis Barbara Ertter 2005-8-18 18638 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. Comment
  UC41835  Veronica peregrina subsp. xalapensis Chesnut and Drew April, 1889 Contra Costa Clayton Comment
  UC1005955  Viburnum cylindricum N. Floy Bracelin 1945-2-4 2075 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC267239  Viburnum ellipticum Mary L. Bowerman; Walter & Irja Knight 1967-11-6 2301 Contra Costa Near Curry Park in Morgan Territory, Sulphur Spring Canyon, half way between canyon source and active spring, 15 yards above creek 365 Comment
  UC1050716  Viburnum trilobum N. Floy Bracelin August, 1941 1134 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1050717  Viburnum trilobum N. Floy Bracelin 1941-4-13 1134 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC2070474  Vicia americana Barbara Ertter 2003-3-28 18137 Contra Costa Round Valley Regional Preserve, mid Hardy Canyon along High Creek. Comment
  JEPS66156  Vicia americana var. americana W. L. Jepson May 22 1891-May 23 1891 13638 Contra Costa Mt. Diablo Comment
  UC1586040  Vicia americana var. americana Barbara Ertter with John Little 1989-4-2 8104 Contra Costa n end Hillside Park, El Cerrito; El Cerrito Comment
  UC692688  Vicia americana var. americana Mary L. Bowerman 1931-3-21 589 Contra Costa Sycamore Canyon; Mount Diablo 335 Comment
  JEPS77006  Vicia gigantea Robert M. Lloyd 1963-3-17 2135 Contra Costa 0.5 mi e intersection of Grizzly Peak Road and Skyline Drive (on Skyline Drive (across from 7090 Skyline), Huckleberry trail); Huckleberry trail Comment
  JEPS77007  Vicia gigantea Robert M. Lloyd 1963-3-17 2135 Contra Costa 0.5 mi e intersection of Grizzly Peak Road and Skyline Drive (on Skyline Drive (across from 7090 Skyline), Huckleberry trail); Huckleberry trail Comment
  UC1607503  Vicia sativa Barbara Ertter 1993-4-2 11475 a Contra Costa w of Crockett (along railroad, base of n-facing bluffs at w wnd of Carquinez Strait, San Pablo Bay); San Pablo Bay, Carquinez Strait Comment
  JEPS100100  Vicia sativa subsp. sativa G. Smick 2003-3-25 GAS 75 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CHSC23353  Vicia villosa subsp. varia Willis Ball 1975-4-19 526 Contra Costa In area #3 ca. 75 yds nw of dam. On n facing slope. 60 Comment
  UC1795794  Vicia villosa subsp. varia Barbara Ertter, Mary Bowerman 1995-6-11 14250 Contra Costa Shell Ridge Recreation Area southeast of Walnut Creek, at west base Mt. Diablo.; annual grassland near Indian Valley School entrance, clay soil (planted Clarkia also present). 91 Comment
  SJSU2616  Viola pedunculata W. E. Ferguson 1942-4-25 Contra Costa E base of Mt Diablo 304 Comment
  UC19340  Viola purpurea subsp. quercetorum Harley P. Chandler 1901-4-5 989 Contra Costa Mount Diablo Comment
  UC422922  Viola purpurea subsp. quercetorum E. W. Hicks 1917-3-25 109 Contra Costa w shoulder of Mount Diablo 762 Comment
  POM203171  Viola purpurea subsp. quercetorum L. S. Rose 1934-2-28 34042 Contra Costa Summit Mt Diablo. Comment
  UC692697  Viola sheltonii Mary L. Bowerman 1935-5-18 3026 Contra Costa at the summit of Meridian Peak ( n of the parking area); Mount Diablo, Meridian Peak Comment
  CAS-BOT-BC203040  Vitis californica L. R. Abrams 1910-10-8 4346 Contra Costa Mt Diablo 762 Comment
  UC1121952  Vitis californica R. W. Lundh 1932-8-26 146 Contra Costa 1 mi sw Mt. Diablo; Mt. Diablo Quadrangle 853 Comment
  CDA4971  Vitis rupestris Barbara Ertter 1995-4-27 14020 Contra Costa Walkway along ditch between Valley Vista and Arbolado Park, Walnut Creek,