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/cch_archive/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UC1357059  Abies bracteata Rimo Bacigalupi 1960-4-4 7360 Contra Costa w slopes of upper Wildcat Canyon (on short side of road to the corporation yard.); Tilden Regional Park, Berkeley Hills 297 Comment
  UC1050374  Acacia dealbata N. Floy Bracelin 1942-7-4 2174 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CDA34008  Acacia melanoxylon D. G. Kelch 2011-3-31 11 .082 Contra Costa Carquinez Region; Richmond; Hilltop Lake Park. Comment
  UC1050738  Acacia pycnantha N. Floy Bracelin 1941-4-6 1113 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1719694  Acacia redolens Barbara Ertter, Brad Olson 1994-5-7 12742 Contra Costa S end of Point Molate Beach Park, edge of San Francisco Bay N of Richmond to San Rafael bridge Comment
  UC1050368  Acacia verticillata N. Floy Bracelin 1942-7-4 2172 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS111581  Acer macrophyllum D. G. Kelch 2004-3-5 04 .15 Contra Costa Sky Ranch Dutra Fire Road. Franklin Canyon 90 Comment
  JEPS42648  Acer macrophyllum W. L. Jepson 1916-10-28 6853 a Contra Costa Las Trampas Creek Comment
  UC400149  Acer macrophyllum Ynez Mexia 1929-4-21 2383 Contra Costa Moraga Valley Comment
  UC1050118  Acer macrophyllum N. Floy Bracelin 1942-3-15 1967 Contra Costa Adelante, Tthe Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1051142  Acer macrophyllum N. Floy Bracelin 1943-7-18 2560 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC334180  Acer negundo var. californicum Annetta Carter 1937-3-28 1227 Contra Costa Creek bank, Moraga Valley, 2.5 miles north of Moraga 182 Comment
  JEPS42724  Acer negundo var. californicum W. L. Jepson 1908-8-16 3088 Contra Costa 2 mi w Walnut Creek; w of Walnut Creek Comment
  UC29238  Achillea millefolium W. H. Brewer 1862-5-20 1125 Contra Costa hill north of coal mines Monte Diablo Comment
  CAS-BOT-BC29885  Achyrachaena mollis L. Kellogg; Brannan 1870-4-20 s.n. Contra Costa Antioch 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
  HSC91986  Achyrachaena mollis Scott Brush, Ross Jones, Maggie Wolfe 1990-4-29 75 Contra Costa 549 Comment
  JEPS36721  Achyrachaena mollis Anna E. Ehlers 1920-5-23 582 Contra Costa Trampas Canon Comment
  UC1613477  Achyrachaena mollis Charles M. Belshaw 1935-5-24 178 a Contra Costa 0.5 mi. e. Grizzly Peak (Bald Peak); Bald Peak Comment
  UCD84946  Achyrachaena mollis Chuck Hughes 2010-3-29 218 Contra Costa About 0.7 mile south of Vasco Road. 238 Comment
  OBI48824  Achyrachaena mollis Joseph Andorfer Ewan 1935-5-26 9312 Contra Costa E slope Bald Peak, San Pablo Ridge 549 Comment
  UCD128392  Achyrachaena mollis Morris Halperin 1929-4-21 s.n. Contra Costa Franklin Canyon. Comment
  JEPS112328  Acmispon glaber Dean G. Kelch and Andrew G. Murdock 2004-7-16 04 .319 Contra Costa Martinez- South; County: Contra Costa; Pine St. Entrance Rte 4 heading west. Martinez, CA. Comment
  CDA36365  Acroptilon repens Chris Denijs 2011-9-14 PDR# 1454138 Contra Costa 4571 Orwood Rd., Brentwood. 0 Comment
  UC905259  Actaea rubra J. A. Rattenbury 1949-3-10 129 Contra Costa 1/2 mi. e. Oakland Tunnel (on s. side of hwy. above creek) 243 Comment
  JEPS111516  Adenostoma fasciculatum D. G. Kelch 2005-5-13 05 .279 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Ozol rock in chamise chaparral 66 Comment
  JEPS46396  Adenostoma fasciculatum W. L. Jepson 1919-1-25 8211 Contra Costa Moraga Ridge Comment
  SEINET11906748  Adenostoma fasciculatum E. L. Core 1952-1 s.n. Contra Costa Mt. Diablo Comment
  CHSC22658  Aesculus californica Robert A. Schlising 1965-1-24 2740 Contra Costa North of Briones Reservoir along Hampton Road; 1.1 mi S of Jct with Garcia Ranch Road. Comment
  JEPS40101  Aesculus californica W. L. Jepson 1923-6-10 9984 Contra Costa Mt. Diablo Comment
  UC18188  Aesculus californica Ivar Tidestrom Jun 1895 Contra Costa Comment
  JEPS100119  Agoseris grandiflora G. Smick 2003-4-29 GAS 151 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  SEINET209195 Image available Agoseris grandiflora W. L. Jepson 1922-5-26 Contra Costa North Berkely hills. Comment
  UC2028123  Agoseris grandiflora Barbara Ertter with Richard K. Brummitt 1998-5-6 16085 Contra Costa Lower Donner Canyon on north base of Mount Diablo, near Donner Cabin site. Comment
  UC2028295  Agoseris grandiflora Barbara Ertter, Dan Norris 1998-6-18 16218 Contra Costa Rock City area on south side of Mount Diablo, W Fossil Ridge Trail. Comment
  JEPS22025  Agoseris grandiflora var. grandiflora G. Thomas Robbins with S. Galen Smith 1958-6-2 3851 Contra Costa just e of Hercules City boundary along Franklin Canyon Rd Hercules City; Refugio Valley 18 Comment
  CAS-BOT-BC22971  Agoseris heterophylla John Thomas Howell 1933-5-14 11260 Contra Costa Hills east of St. Mary's College Comment
  UCD128609  Agoseris heterophylla P. B. Kennedy 1925-4-26 s.n. Contra Costa Mt. Diablo. Comment
  UC691796  Agoseris heterophylla var. cryptopleura Mary L. Bowerman 1935-4-17 2836 Contra Costa 2 mi from entrance Mt. Diablo West Road (=North Rd); Mt. Diablo 289 Comment
  CAS-BOT-BC13350  Agoseris retrorsa Alice Eastwood 1916-5-30 4500 Contra Costa Mount Diablo Comment
  CDA29002  Agrostis avenacea D. G. Kelch 2006-11-11 06 .505-B Contra Costa Carquinez Strait; Along RR tracks N of Pt Pinole in swale W of RR. Comment
  UC2028508  Agrostis avenacea Barbara Ertter with Tony Morosco 1998-9-18 16425 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, north quarry area [subsequently developed] Comment
  UC2028527  Agrostis exarata Barbara Ertter 1997-11-1 15884 Contra Costa South side Mount Diablo, end of spur road east of Knobcone Point, below powerline crossing at head of Alamo Creek drainage. Comment
  CDA42431  Agrostis hallii D. G. Kelch 2012-6-9 12 .092 Contra Costa Carquinez Strait Region; East of Crockett; Bull Valley Trail. Comment
  UC2028399  Agrostis hallii Barbara Ertter with Dan Norris 1998-6-18 16217 Contra Costa Rock City area on south side of Mount Diablo, W Fossil Ridge Trail Comment
  CAS-BOT-BC138661  Agrostis stolonifera Walter Knight; Joanne Dean 1978-8-14 3172 Contra Costa Browns Island. Comment
  UC2028465  Agrostis stolonifera Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15670 Contra Costa Martinez Regional Shoreline, south edge of Carquinez Strait Comment
  UC2070613  Agrostis stolonifera Barbara Ertter with Chris Thayer, Dianne Lake et al. 2001-5-26 17654 Contra Costa Stamm Unit of Antioch Dunes National Wildlife Refuge east of Antioch. Comment
  JEPS99493  Agrostis viridis Mary Bowerman 1975-9-14 Contra Costa Mount Diablo, near Chase Pond. Comment
  UC692383  Agrostis viridis Mary L. Bowerman 1936-8-17 3527 Contra Costa Sulphur Spring Mount Diablo, Pine Canyon 137 Comment
  POM300734  Aira caryophyllea Mary L. Bowerman 1942-5-24 3844 Contra Costa Lower Rock City Camp, Fossil Ridge 457 Comment
  CAS-BOT-BC175362  Allenrolfea occidentalis W. R. Dudley 1906-7-19 s.n. Contra Costa Byron Hot Springs Comment
  CDA9505  Allenrolfea occidentalis D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .232 Contra Costa Byron Airport. Comment
  CAS-BOT-BC175358  Allenrolfea occidentalis T. C. Fuller 1965-11-24 14321 Contra Costa On the slopes of the drainageway from Byron Hot Springs, s. side Byron Hot Springs Rd., 0.6 mi. s.w. of Byron-Tracy Hwy, ca. 1 mi. s.w. of Byron Comment
  RSA411794  Allenrolfea occidentalis E. E. Stanford 1930-08 1871 Contra Costa Near Old River; near sloughs. Comment
  CAS-BOT-BC459418  Allium acuminatum Mary L. Bowerman 1930-6-14 329 Contra Costa Meridian Peak Summit, North slope, Mount Diablo Comment
  POM181433  Allium crispum I. L. Wiggins 1930-4-17 4565 Contra Costa Near Mountain House, Altamont Pass. Comment
  RSA70452  Allium falcifolium L. S. Rose 1935-5-16 35164 Contra Costa Mt. Diablo. Comment
  CAS-BOT-BC469110  Allium falcifolium Paul F. Covel 1936-5-17 126 Contra Costa Summit Mt. Diablo Comment
  UC767477  Allium serra R. F. Hoover 1938-3-5 2818 Contra Costa mouth of Kirker Creek canyon Kirker Creek canyon Comment
  UC796584  Allium serra Reed C. Rollins 1946-3-25 3043 Contra Costa w slope of Mount Diablo Mount Diablo Comment
  CAS-BOT-BC475526  Allium serra Alice Eastwood 1895-4-8 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC475537  Allium serra Volney Rattan 1883-4-1 s.n. Contra Costa Martinez Comment
  CAS-BOT-BC475540  Allium serra E. M. Zeile 1922-6-3 s.n. Contra Costa Mount Diablo Comment
  RSA34737  Allium serra R. C. Rollins 1946-3-25 3043 Contra Costa Western slope of Mount Diablo. Comment
  UCD138632  Allium serra Laurence S. Jones 1934-4-8 s.n. Contra Costa Mount Diablo. 609 Comment
  UC1789187  Allium triquetrum Barbara Ertter 2000-5-20 17027 Contra Costa Sibley Volcanic Regional Preserve, Oakland Hills, accessible trail on ridge behind interpretative center. Locally established in understory of eucalyptus-oak-pine flores; onion-scented, flowers white. Comment
  UC1481549  Allium unifolium Neil Havlik 1980-5-16 919 Contra Costa e Little Farm; Tilden Regional Park Comment
  CAS-BOT-BC476608  Allium unifolium Mary L. Bowerman 1933-6-3 2250 Contra Costa Small spring at bend below Silver Spring. Comment
  UC692021  Allium unifolium Mary L. Bowerman 1933-5-22 2165 Contra Costa flat at head of n ridge w 1970; Mount Diablo, Inner Black Hills Comment
  SEINET3151680  Allocarya stipitata L. S. Rose 1936-4-24 36155 Contra Costa 8 miles S of Antioch 30 Comment
  UC691644  Allophyllum divaricatum Mary L. Bowerman 1933-4-26 1907 Contra Costa North Peak ridge e.-s.e of peak Mt. Diablo 609 Comment
  CAS-BOT-BC170928  Alnus rhombifolia W. C. Blasdale 1896-2-29 s.n. Contra Costa Clayton Comment
  SEINET3151403  Alnus rhombifolia L. S. Rose 1938-10-28 38307 Contra Costa Marsh creek, 6 miles East of Clayton. 152 Comment
  CAS-BOT-BC170930  Alnus rhombifolia Walter Knight 1978-9-19 3265 Contra Costa Browns Island, Alder Point Comment
  POM300606  Alnus rhombifolia Mary L. Bowerman 1931-10-13 1058 Contra Costa Alamo Canyon. Mount Diablo. 259 Comment
  RSA452847  Alnus rubra M. B. Dunkle 1931-7-18 2526 Contra Costa Strawberry Canyon, Berkeley. San Francisco Bay Region. Comment
  JEPS127677  Alopecurus saccatus Barbara Ertter with David Gowen and Michael Park 2017-5-2 22798 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  UC768586  Alopecurus saccatus R. F. Hoover 1937-5-14 2120 Contra Costa Byron Hot Springs Comment
  UCD55972  Alopecurus saccatus P. B. Kennedy 1916-5-11 s.n. Contra Costa Richmond District, Grand View Terrace. Comment
  CDA15289  Amaranthus albus G. F. Hrusa, D. Crowe, R. York 1998-7-17 14729 Contra Costa Sacramento Delta; Along top of levee separating Dow Ecological Reserve and San Joaquin R. Comment
  JEPS111588  Amaranthus retroflexus D. G. Kelch 2004-6-19 04 .286 Contra Costa Crockett - Edwards Canyon Edwards Creek staging area near barn. 24 Comment
  UC1789207  Amaryllis belladonna Barbara Ertter 2002-8-24 18029 Contra Costa NE corner of Mount Diablo State park, along upper bridle path S of Mount Diablo Mine property, apparent site of old homestead (only rocked terraces left) 274 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
  UC2028561  Amaryllis belladonna Barbara Ertter with Mary Barkworth 2000-9-24 17528 Contra Costa North side Mount Diablo, near former well at Donner Cabin site on Donner Creek. Comment
  JEPS111728  Ambrosia chamissonis D. G. Kelch 2004-7-9 04 .312 Contra Costa Rodeo Shore 2 Comment
  CAS-BOT-BC142927  Amelanchier utahensis H. E. McMinn 1923-6-13 231 Contra Costa From 6 mi. n. of Camp Frost on Livermore & Mt. Hamilton Road Comment
  UCD55999  Ammophila arenaria Morris Halperin; Earl J. Coke 1930-5-20 s.n. Contra Costa Sand near Antioch. Comment
  UC1051334  Amphilophium buccinatorium N. Floy Bracelin 1941-6-15 1394 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California 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-BC222234  Amsinckia John Thomas Howell 1933-3-29 10913 Contra Costa Nortonville hills Comment
  UC1178261  Amsinckia eastwoodiae R. Bacigalupi and Francia Chisaki 1957-3-27 914 Contra Costa 2.2 mi southeast of Byron (on Byron Highway) Comment
  RSA0090926  Amsinckia eastwoodiae A. A. Heller 1941-3-24 15906 Contra Costa Byron Springs. Comment
  UC78264  Amsinckia grandiflora T. S. Brandegee May 1887 Contra Costa Judsonville Comment
  CHSC23358  Amsinckia intermedia Willis Ball 1975-3-2 475 Contra Costa Contra Loma Regional Park. In area #5. On w side of largest hill ca. 100 yds ne of main boat ramp at the s end of the reservoir. 45 Comment
  SEINET12479829  Amsinckia intermedia R. R. Halse 1988-2-20 3541 Contra Costa Along State Hwy 4, near its junction with Balfour Road, S edge of Brentwood. 23 Comment
  UC1084555  Amsinckia intermedia Francia Chisaki, Peter M. Ray 1952-5-4 2274 Contra Costa 0.7 mi west of Inspiration Point (and road e to; and Orinda-Richmond Road); Tilden Park Comment
  UC1178260  Amsinckia intermedia Francia Chisaki 1954-3-25 574 Contra Costa Mount Diablo; Mount Diablo State Park Comment
  UC1618223  Amsinckia intermedia Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8130 Contra Costa ca. 15 air mi. s.w. Stockton (w. and adjacent to Clifton Court Forebay) Comment
  CAS-BOT-BC222465  Amsinckia lunaris Robert F. Hoover 1939-4-24 4058 Contra Costa Lower end of San Pablo Reservoir Comment
  SD71397  Amsinckia menziesii John Thomas Howell 1933-5-14 11224 A Contra Costa St. Mary's College Comment
  UC2028213  Amsinckia menziesii Barbara Ertter with Richard K. Brummitt 1998-5-13 16133 Contra Costa Summit Road on Mount Diablo, base of rock outcrop/roadcut above Juniper Camp. Comment
  JEPS18323  Amsinckia menziesii var. menziesii Rimo Bacigalupi with F. Chisaki 1957-3-27 5758 Contra Costa 1 1/2 mi e of Antioch (city limits, just e of Kaiser Gypsum Plant, along Wilbur Avenue Road) 9 Comment
  RSA0089987  Amsinckia retrorsa Lyman Benson 1935-3-16 6283 Contra Costa 3 miles S of Antioch. Mt. Range: Mt. Diablo; Watershed: Sacramento River. 152 Comment
  CAS-BOT-BC26957  Amsinckia sparsiseta Alice Eastwood 1914-3-14 3796 Contra Costa Byron Springs Comment
  JEPS127041  Anagallis arvensis Lowell Ahart, Josephine Guardino 2016-4-19 20784 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  JEPS12259  Anemopsis californica W. L. Jepson May 22 1891-May 23 1891 Contra Costa Mount Diablo Comment
  JEPS12260  Anemopsis californica W. L. Jepson May 23 1891-May 24 1891 Contra Costa Mount Diablo Comment
  CAS-BOT-BC400257  Anemopsis californica Walter Knight; Irja Knight 1977-6-18 s.n. Contra Costa 2 mi. from Dutch Slough on Jersey Island Road, near Oakley Comment
  CAS-BOT-BC400260  Anemopsis californica W. W. Carruth 1903-5-11 s.n. Contra Costa Nr. Walnut Creek Comment
  CDA1107  Angelica californica D. G. Kelch, A. G. Murdock 2003-8-13 3 .127 Contra Costa Carquinez Strait; Vaca Canyon. Comment
  JEPS111622  Angelica californica D. G. Kelch 2004-7-9 04 .308B Contra Costa Vaca Canyon Vaca Canyon 165 Comment
  UC691887  Angelica californica Mary L. Bowerman 1935-3-16 2740 Contra Costa Mount Diablo, e fork of Arroyo del Cerro Arroyo del Cerro; Mount Diablo, Arroyo del Cerro 274 Comment
  UC692565  Angelica californica Mary L. Bowerman 1931-6-2 915 Contra Costa Mount Diablo, Gregory Ranch Road Mount Diablo; , Gregory Ranch Road 518 Comment
  JEPS100137  Anthriscus caucalis G. Smick 2003-4-29 GAS 148 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC691891  Anthriscus caucalis Mary L. Bowerman 1932-5-6 1413 Contra Costa Mitchell Canyon floor Mitchell Canyon; Mount Diablo Comment
  CAS-BOT-BC447664  Aphanes arvensis Mary L. Bowerman 1931-3-29 620 Contra Costa Mount Diablo, East Cave Point ridge, Comment
  JEPS45617  Aphanes occidentalis W. L. Jepson 1931-4-5 15720 Contra Costa Nortonville 396 Comment
  UC1543249  Aphanes occidentalis Donald G. Nelson 1938-4-24 567 Contra Costa Marsh Creek Highway, 1 mile north of Mt. Diablo Comment
  UC2027940  Apiastrum angustifolium Barbara Ertter with Tony Morosco and other CNPS members 2001-5-6 17621 Contra Costa Northwest flank of Mount Diablo, trail on west face of Black Point. Comment
  UC691847  Apocynum cannabinum Mary L. Bowerman 1933-9-15 2440 Contra Costa s. face Meridian Peak (Hunt Spring); Mt. Diablo, Hunt Spring 762 Comment
  UC692088  Aquilegia formosa Mary L. Bowerman 1935-5-18 3021 Contra Costa across the rd and a little east from the parking area Mount Diablo 1066 Comment
  UC905142  Aquilegia formosa Sanford S. Tepfler 1949-5-2 1475 Contra Costa 2 mi s rd fork above St. Mary's College (near Moraga) Comment
  RSA721743  Aquilegia formosa Barbara J. Ertter, Mary L. Bowerman 1994-6-19 12840 Contra Costa Mt. Diablo State Park E of Walnut Creek, Muir Picnic Area on Summit Road. 1006 Comment
  UCD95520  Aquilegia formosa Collector unknown Date unknown s.n. Contra Costa On ridge to west of Franklin Canyon (Central). 274 Comment
  POM203649  Aquilegia formosa var. truncata J. T. Howell 1933-5-14 11253 Contra Costa Hills east of St. Mary's college Comment
  UC2028457  Aralia californica Barbara Ertter with Joanne Kerbavaz and Mary Bowerman 2000-8-20 17513 Contra Costa North side of Mount Diablo, Big Spring below Prospectors Gap Road at head of Donner Canyon Comment
  CAS-BOT-BC407798  Arceuthobium campylopodum R. Bacigalupi 1922-9-24 s.n. Contra Costa Mitchell Canon, Mt. Diablo Comment
  JEPS40128  Arceuthobium campylopodum W. L. Jepson 1898-10-18 1898 Contra Costa Mitchell Canyon Mt. Diablo 487 Comment
  RSA721736  Arceuthobium occidentale Barbara Ertter, Mary L. Bowerman, Lisa Schultheis, Kevin Hintsa 1995-10-22 14533 Contra Costa Three Springs Trail on northeast side of Mt Diablo, wood above ranch. 366 Comment
  SEINET11971166  Arctostaphylos andersonii var. auriculata L. S. Rose 1934-1 24039 Contra Costa S slope of Mount Diablo, 8 mi NE of Danville Comment
  CDA31098  Arctostaphylos auriculata D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .23 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  POM300661  Arctostaphylos auriculata Mary L. Bowerman 1933-3-25 1772 Contra Costa Emmons Canyon: South-facing slope between the two forks, top of ridge (Pine Canyon ridge) Comment
  RSA388864  Arctostaphylos auriculata H. A. Stout, TC Wainwright 1980-3-27 2 Contra Costa Mallory Ranch, ca. 1 mile east of Morgan Territory Road. 609 Comment
  RSA622486  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27597 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments Jan 30 2013
  UC1200411  Arctostaphylos auriculata Edward Lee 1936-1-12 1714 Contra Costa w-facing slope immediately s Nortonville Comment
  UC1200413  Arctostaphylos auriculata Edward Lee 1936-1-12 1713 Contra Costa w-facing slope immediately s Nortonville Comment
  UC549566  Arctostaphylos auriculata J. E. Adams 1934-3-19 673 Contra Costa Mt. Diablo Comment
  UC692479  Arctostaphylos auriculata Mary L. Bowerman 1933-3-25 1773 Contra Costa top Pine Canyon Ridge (s-facing slope between the two forks); Mount Diablo, Emmons Canyon (off Stone Valley) Comment
  UC692483  Arctostaphylos auriculata Mary L. Bowerman 1931-9-20 1044 Contra Costa w edge Rock City; Mount Diablo Comment
  UC697791  Arctostaphylos auriculata Mary L. Bowerman 1932-9-5 1547 Contra Costa near firebreak which runs s from large spur (on meridian) heading into Sycamore Canyon; Mount Diablo, Inner Black Hills Comment
  UCD162927  Arctostaphylos auriculata D. O. Burge; K. Zhukovsky 2015-6-6 1747 Contra Costa Mount Diablo. 515 Comment
  UCD50259  Arctostaphylos auriculata H. A. Stout; T. C. Wainwright 1980-3-27 Contra Costa Mallory Ranch, ca. 1 mile east of Morgan Territory Road. 609 Comment
  SEINET11998374  Arctostaphylos canescens subsp. malloryi W. Knight, Knight, I. 1988-1 6478 Contra Costa Tilden Regional Park, Regional Parks Botanic Garden, originally from Iron Mt. in Shasta Co 914 Comment
  CAS-BOT-BC23596  Arctostaphylos crustacea John Thomas Howell 1925-9-19 1446 Contra Costa Moraga Ridge, Oakland Hills Comment
  CAS-BOT-BC23597  Arctostaphylos crustacea W. W. Carruth 1902-3-1 s.n. Contra Costa Pine Ridge, Moraga Valley Comment
  CAS-BOT-BC23560  Arctostaphylos crustacea John Thomas Howell 1930-6-15 5311 Contra Costa Rocky north-west slope of summit of Grizzley Peak, Berkeley Hills. Comment
  CAS-BOT-BC23592  Arctostaphylos crustacea Steve Abbors 1980-3-24 s.n. Contra Costa Chemise Trail, Las Trampas Ridge, Las Trampas Regional Wilderness. Comment
  SEINET11989683  Arctostaphylos crustacea Unknown 1982-1 20829 Contra Costa on Rocky Ridge, about half way down from summit ridge (on 2nd-middle-shelf on ridges), Las Trampas 183 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
  CAS-BOT-BC24859  Arctostaphylos glandulosa subsp. cushingiana Walter Knight; Irja Knight 1980-3-16 3716 Contra Costa Sobrante Ridge between Heavenly Ridge Lane and Castro Ranch Road, El Sobrante. Comment
  CAS-BOT-BC24808  Arctostaphylos glandulosa subsp. glandulosa C. Hart Merriam 1919-8-24 s.n. Contra Costa Las Trampas Peak. Comment
  CAS-BOT-BC24660  Arctostaphylos glauca John Thomas Howell 1926-3-7 1674 Contra Costa Mt. Diablo. Comment
  JEPS38917  Arctostaphylos glauca Mary L. Bowerman 1933-3-11 1748 Contra Costa in gully nw park entrance (outer s face of ridge); Mount Diablo, Rock City Ridge Comment
  RSA0046799  Arctostaphylos glauca Mary L. Bowerman 1933-3-11 1748 Contra Costa Fossil Ridge, outer south face. In gully northwest of South Gate. Comment
  RSA632820  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27579 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  RSA632821  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27588 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  RSA632823  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27581 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  CAS-BOT-BC38878  Arctostaphylos manzanita subsp. laevigata Rimo Bacigalupi 1924-2-17 s.n. Contra Costa Lower slopes of Mt. Diablo on old wagon road to summit from Mt. Diablo Country Club (Black Hills) 457 Comment
  RSA122397  Arctostaphylos manzanita subsp. laevigata R. C. Wilson 1935-3-13 132 Contra Costa 1.5 mi W of Cave Pt. 563 Comment
  SEINET223757 Image available Arctostaphylos manzanita subsp. laevigata Alice Eastwood 1922-3-17 11082 Contra Costa Mt. Diablo. Comment
  UC549750  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-3-19 689 Contra Costa Mt. Diablo Comment
  UC692221  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1931-3-1 540 Contra Costa e meridian (w part of chaparral); Mount Diablo, Inner Black Hills Comment
  UC692231  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1932-9-5 1545 Contra Costa large spur on meridian which heads into Sycamore Canyon; Mount Diablo Comment
  OBI14658  Arctostaphylos manzanita subsp. laevigata H. E. McMinn 1936-4-11 4418 Contra Costa Mt Diablo-head of Sycamore Canyon Comment
  CAS-BOT-BC24385  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1932-1-23 1076 Contra Costa Mount Diablo, Sycamore canyon, east fork: near canyon bottom. Comment
  POM300725  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1933-3-25 1765 Contra Costa Emmons Canyon (off Stone Valley), west fork. Comment
  UC1120870  Arctostaphylos pallida R. W. Lundh 1933-1-12 188 Contra Costa 1/2 mi s Round Mt.; Concord Quadrangle 609 Comment
Read comments Mar 14 2007
  UC1142931  Arctostaphylos pallida Beryl O. Schreiber 1938-9-18 2548 Contra Costa 0.5 mi ssw Round Top 335 Comment
  UC198874  Arctostaphylos pallida V. King Chesnut April 1888 Contra Costa Moraga Valley Comment
  JEPS96258  Arctostaphylos tomentosa subsp. crustacea Dean Kelch 1995-3-14 97 .14 Contra Costa Rock City Mt. Diablo; e. Contra Costa Co., , Rock City Comment
  RSA202862  Arctostaphylos tomentosa subsp. crustacea Edward Lee 1935-12-28 1704 Contra Costa Western end of Las Trampas Ridge Comment
Read comments Jul 2 2011
  UC1120138  Arctostaphylos tomentosa subsp. crustacea C. M. Belshaw 1936-2-16 1585 Contra Costa 2 1/2 mi nw Lafayette; Concord Quadrangle, Lafayette Ridge Comment
  UC1120141  Arctostaphylos tomentosa subsp. crustacea R. W. Lundh 1933-2-1 200 Contra Costa 1/2 mi sw Pinehurst; Concord Quadrangle Comment
  UC1120143  Arctostaphylos tomentosa subsp. crustacea C. M. Belshaw 1936-2-16 1588 Contra Costa 2 1/2 mi nw Lafayette; Concord Quadrangle, Lafayette Ridge Comment
  UC549469  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 627 Contra Costa Moraga Ridge Comment
  UC549471  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 624 Contra Costa Moraga Ridge Comment
  UCD51867  Arctostaphylos tomentosa subsp. crustacea Edward Lee 1935-12-28 1702 Contra Costa Western end of Las Tampas Ridge, Contra Costa County. 426 Comment
Read comments Jul 2 2011
  JEPS81964  Argyranthemum foeniculaceum Rimo Bacigalupi and L. R. Heckard 1965-5-11 9070 Contra Costa on strand at n end Brooks Island (sw of Richmond, in San Francisco Bay); San Francisco Bay, n end of Brooks Island Comment
  UC2032801 Image available Argyranthemum foeniculaceum Doran, Andrew Scott 2012-3-20 671 Contra Costa Brooks island loading dock, North side of island. Comment
  UC581133  Aristolochia californica H. L. Mason 1934-1-20 7995 Contra Costa <Casihon> Creek (Las Trampas Creek) Comment
  UC1606406  Aristolochia californica Barbara Ertter 1993-4-2 11476 Contra Costa below Vista Rd. w. of Crockett (midslope, Carquinez Regional Park); Carquinez Regional Park Comment
  JEPS95239  Arnica discoidea Stephen W. Edwards 1991-1 Contra Costa Huckleberry Trail; Huckleberry Botanic Regional Preserves Comment
  UC691351  Arnica discoidea Mary L. Bowerman 1931-5-16 849 Contra Costa summit Meridian Peak; Mount Diablo Comment
  CDA42352  Artemisia douglasiana D. G. Kelch, Vince Guise 2012-7-26 12 .238 Contra Costa Wildcat Canyon Park, Alvarado Unit. Comment
  UC2027815  Asclepias californica Barbara Ertter with Holly Forbes 1997-4-20 15553 Contra Costa North base of Mount Diablo, trail to Back Creek from Mitchell Canyon trailhead. Comment
  SBBG93247  Asclepias vestita D. G. Nelson 1937-4-24 520 Contra Costa Marsh Crk Rd, between Byron and Clayton Comment
  RSA666355  Aster radulinus Barbara Ertter, Dianna Lake 1991-8-18 10675 Contra Costa Carquinez Strait Regional Shoreline east of Crockett, northeast of Bull Valley staging area Comment
  CDA10358  Aster subulatus var. ligulatus D. G. Kelch 2006-9-15 6 .472 Contra Costa Carquinez Strait; Martinez. Waterfront Rd. Marina Dr. , 100 m. W of Pacheco Slough. Comment
  CAS-BOT-BC180527  Astragalus asymmetricus Ira L. Wiggins 1930-4-17 4562 Contra Costa Near Montain House, Altamont Pass. Comment
  CAS-BOT-BC180575  Astragalus asymmetricus M. K. Curran 1885-5-30 s.n. Contra Costa Marsh Creek, near Mt. Diablo Comment
  POM264824  Astragalus gambelianus Lincoln Constance, Carl W. Sharsmith 1940-4-27 2572 Contra Costa Pine Canyon, base of Mt Diablo 305 Comment
  CAS-BOT-BC17454  Athysanus pusillus John Thomas Howell 1926-3-7 1677 Contra Costa Mount Diablo. Comment
  UC691075  Athysanus pusillus Mary L. Bowerman 1935-4-27 2887 Contra Costa Ridge w of Pioneer Road ((w of Old Stage Road)) 853 Comment
  JEPS108320  Athysanus pusillus David Gowen 2005-2-23 168 Contra Costa Mt. Diablo State Park. Juniper Trail just south of Silver Spring. Comment
  CAS-BOT-BC168611  Atriplex Alice Eastwood 1927-5-19 14438 Contra Costa Byron Springs Comment
  CDA9501  Atriplex argentea D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .228 Contra Costa Byron Airport. Comment
  RSA739722  Atriplex argentea subsp. expansa John Dittes 2006-10-26 1414 Contra Costa San Joaquin Valley (foothills near NW edge) 2 air mile S of Marsh Creek Reservoir Gauging Station, 1.6 air mile SW of intersection of Camino Diablo and Vasco Road, Contra Costa Water District s Los Vaqueros Watershed Mitigation. 67 Comment
  UCD97337  Atriplex cordulata Robert E. Preston; David Muth 1993-9-3 633 Contra Costa 1500 feet north of Marsh Creek Road, 2.75 miles west of its junction with Vasco Road. 91 Comment
  UC219362  Atriplex coronata H. M. Hall 1922-5-6 11802 Contra Costa 8 mi w Byron (e of Mt. Diablo); , w of Byron Comment
  UCD148250  Atriplex coronata Robert E. Preston 2013-6-14 2912 Contra Costa 3.1 mi WSW of Byron, 0.25 mi E of Kellogg Creek. 66 Comment
  POM181083  Atriplex coronata J. T. Howell 1930-9-28 5503 Contra Costa 5.4 miles from Byron on Marsh Creek Road. Comment
  RSA454002  Atriplex coronata E. E. Stanford 1930-08 1869 Contra Costa near Old River. Comment
  RSA603503  Atriplex coronata Carol W. Witham 1994-8-6 587 Contra Costa along Kellogg Creek Road under transmission towers 3 Comment
  UCD77402  Atriplex coronata Robert E. Preston 2000-8-6 1430 Contra Costa Ca. 2 mi sw of Byron, in field along w side of Byron Hot Springs Rd, n of Armstrong Rd, T1S R3E se 1/4 Section 15 12 Comment
  CHSC98937  Atriplex coronata var. coronata Samantha Mackey Hillaire 2007-7-17 1243 a Contra Costa Briones Valley, ~0.2 mile west of Marsh Creek Reservoir. 60 Comment
Read comments Jan 22 2009
  UC70181  Atriplex fruticulosa J. Burtt Davy May 1898 Contra Costa region Mount Diablo (Livermore Pass); region of Mount Diablo, Livermore Pass Comment
  POM203039  Atriplex joaquinana J. T. Howell 1934-4-8 11823 Contra Costa South of Antioch, Contra Costa County Comment
  SEINET11268190  Atriplex semibaccata Barbara Ertter 1990-9-30 9655 Contra Costa NW side of county, SE of Hilltop Mall in N Richmond. Near Day's Inn; 0 Comment
  UC473576  Atriplex triangularis John Thomas Howell 1931-10-31 8163 Contra Costa Bay Point Comment
  CAS-BOT-BC146022  Avena barbata Mary L. Bowerman 1932-4-16 1355 Contra Costa Mount Diablo. Eagle Point Ridge south of Twin Peaks. Comment
  CDA19824  Avena fatua P. Akers 2002-5-11 s.n.- 1 a Contra Costa Northern California; Mt Diablo Rd. 205 Comment
  UCD56310  Avena fatua A. A. Beetle 1942-3-22 3266 Contra Costa Brooks Island in San Francisco Bay. Comment
  UC1619933  Azolla filiculoides Barbara Ertter, Brad Olson 1991-9-28 10849 Contra Costa S end San Pablo Reservoir between Orinda and El Sobrante 97 Comment
  CAS-BOT-BC98764  Baccharis douglasii John Thomas Howell 1926-1-17 1627 Contra Costa Between Cashion and las Trampas Ridge Comment
  CDA37435  Baccharis glutinosa D. G. Kelch, Mike Perlmutter 2011-9-23 11 .753 Contra Costa Immediately north of Discovery Bay. Comment
  UC1199295  Baccharis glutinosa Joseph P. Tracy 1932-9-10 10784 Contra Costa e of and on Franklin Canyon Road Pinole (Rodeo Creek); , Franklin Canyon Road 60 Comment
  JEPS104734  Baccharis pilularis John L. Morrison 1936-8-30 1848 Contra Costa Shasta Road, Wildcat Canyon Comment
  UC691906  Baccharis pilularis Mary L. Bowerman 1930-9-27 470 Contra Costa west road 2 miles from entrance North Road; Mount Diablo Comment
  UC1818940  Barbarea orthoceras Barbara Ertter, Mary Bowerman 1994-6-19 12843 Contra Costa Mt. Diablo State Park east of Walnut Creek; Muir Picnic Area on Summit Road, ca. 3300'; roadside cut thru chaparral. Comment
  UC691254  Barbarea orthoceras Mary L. Bowerman 1933-4-22 1899 Contra Costa w of Cave Point (s-face); Mount Diablo, Inner Black Hills Comment
  CDA21555  Bassia hyssopifolia D. G. Kelch, Michael Park 2008-9-1 8 .293 Contra Costa Carquinez Strait; 200 m W of Pacheco Slough, E of Martinez. Comment
  CDA2977  Bassia hyssopifolia D. G. Kelch, A. G. Murdock 2003-8-13 3 .094 Contra Costa Carquinez Strait Region; Martinez Marsh Comment
  POM44500  Bellardia trixago C. C. Hall 1911-5-20 8835 Contra Costa Contra Costa County: rounded hills near concord, alt 100m 100 Comment
  RSA60805  Bellardia trixago Carlotta C. Hall 1911-5-20 8835 Contra Costa Near Concord. 100 Comment
  SD30222  Bellardia trixago P. O. Schallert 1943-4-27 Contra Costa 1 mile east of Martinez, in meadow Comment
  CAS-BOT-BC75786  Berberis pinnata H. E. McMinn 1923-3-17 897 Contra Costa Sycamore Canyon - 2 miles from Black Hawk Ranch - left canyon. Comment
  UC697191  Berula erecta Mary L. Bowerman 1931-8-29 1031 Contra Costa Mount Diablo, Sheep Camp Spring, by North Road Sheep Camp Spring; Mount Diablo, Sheep Camp Spring Comment
  JEPS111524  Beta vulgaris D. G. Kelch 2005-5-5 05 .209 Contra Costa Point Pinole - Giant Marsh Giant Salt Marsh 3 Comment
  NY30996  Blennosperma californicum R. C. F. Bacigalupi 1957-3-27 5761 Contra Costa At junction of Lone Tree Way and Hillcrest Ave. (rd.), about 0.5 mile west of Lone Tree School 39.3 Comment
  JEPS104714  Blennosperma nanum John L. Morrison 1937-3-6 1972 Contra Costa low hills S of Antioch Comment
  CAS-BOT-BC100699  Blennosperma nanum var. nanum Brandegee s.n. Contra Costa [Antiock] Antioch Comment
  JEPS18259  Blennosperma nanum var. nanum Peter H. Raven with Mason, Stone, Ornduff, Kuijt 1957-4-4 10588 Contra Costa 3.3 mi s Byron Comment
  UC1540459  Blennosperma nanum var. nanum Annetta Carter 1937-3-28 1225 Contra Costa 15 mi e, along Marsh Creek Road Concord 152 Comment
  UC34576  Blennosperma nanum var. nanum Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  UC565479  Blennosperma nanum var. nanum H. L. Mason 1929-3-15 5045 Contra Costa just s of Nortonville Comment
  UC682126  Blennosperma nanum var. nanum G. L. Stebbins Jr. 1942-2-8 3220 Contra Costa 1 mi e of, on road to Mt. Diablo Danville Comment
  UC691494  Blennosperma nanum var. nanum Mary L. Bowerman 1932-3-12 1107 Contra Costa field a little e of, s of Diablo Bret Harte Memomorial Comment
  CAS-BOT-BC100701  Blennosperma nanum var. nanum Annetta Carter 1937-3-28 1225 Contra Costa March Creek Road, 15 miles east of Concord 152 Comment
  SBBG45059  Blennosperma nanum var. nanum A. Carter 1937-3-28 1225 Contra Costa Marsh Crk Rd, ca. 15 mi E of Concord 152 Comment
  SEINET1910262  Blennosperma nanum var. nanum Barbara Ertter 1992-1 10908 Contra Costa Byron Springs Road, 4-5 miles south of Junction with J4, near Armstrong Road Comment
  UC1051409  Blennosperma nanum var. nanum Helen K. Sharsmith 1954-3-24 4409 Contra Costa hillslopes above old, near Kirker Pass road between Clayton and Antioch Nortonville Mines 304 Comment
  UC1950447  Blennosperma nanum var. nanum Barbara Ertter 1992-3-8 10908 Contra Costa Byron Springs Road 4-5 miles south of junction with J4, near Armstrong Road Comment
  JEPS18819  Blepharizonia laxa R. F. Hoover 1937-9-2 2710 Contra Costa 1 mi s of Pittsburg Comment
  UC761866  Blepharizonia laxa R. F. Hoover 1937-9-2 2710 Contra Costa 1 mi s of Pittsburg Comment
  UCD129618  Blepharizonia plumosa Robert E. Preston 2001-10-7 1777 Contra Costa Black Diamond Mines Regional Park, on w side of Stewartsville Trail, 0.75 mi s of Parking lot at Frederickson Lane trailhead. 152 Comment
  CAS-BOT-BC15966  Boechera breweri subsp. breweri A. D. E. Elmer 1903-6-1 5096 Contra Costa Mount Diablo. Comment
  UC186865  Boechera breweri subsp. breweri J. W. Congdon 1896-5-8 Contra Costa Summit of Mount Diablo Mount Diablo Comment
  CAS-BOT-BC15962  Boechera breweri subsp. breweri John Thomas Howell 1926-3-7 1671 Contra Costa Mount Diablo. Comment
  CAS-BOT-BC15967  Boechera breweri subsp. breweri Mary L. Bowerman 1932-3-27 1142 Contra Costa Mount Diablo. On Mitchell Rock. Comment
  POM194201  Boisduvalia glabella J. T. Howell 1929-7-20 4331 Contra Costa Pittsburg Comment
  UC2029190  Bolboschoenus maritimus Barbara Ertter with Brad Olson et al. 2000-6-2 17307 Contra Costa Brushy Peal Regional Preserve NE of Livermore Comment
Read comments Sep 1 2021
  CAS-BOT-BC95325  Bowlesia incana Mary L. Bowerman 1933-4-22 1889 Contra Costa Curry-Cave Point trail, Mount Diablo 426 Comment
  JEPS111627  Bowlesia incana D. G. Kelch 2005-4-15 05 .139 Contra Costa Rodeo Creek 100 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
  UC1126847  Brassica nigra R. W. Lundh 1932-7-13 126 Contra Costa 1 mi e of Chaparral Springs (Mount Diablo Quadrangle); Mount Diablo Quadrangle 457 Comment
  CAS-BOT-BC36726  Brassica rapa Ira L. Wiggins 1930-4-18 4609 Contra Costa Jersey Island. Comment
  POM181431  Brassica rapa I. L. Wiggins 1930-4-18 4609 Contra Costa Jersey Island. Comment
  UC650432  Brassica rapa Ira L. Wiggins 1930-4-18 4609 Contra Costa Jersey Island Comment
  UC691792  Brickellia californica Mary L. Bowerman 1931-9-27 1051 Contra Costa road to Quicksilver Mind (Mount Diablo); Mount Diablo Comment
  JEPS99490  Briza maxima Mary Bowerman 1995-6-4 Contra Costa Mount Diablo, Pine canyon by fire road. Comment
  JEPS100026  Briza minor G. Smick 2003-5-13 GAS 189 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS127232  Briza minor Lowell Ahart, Josephine Guardino 2016-4-19 20789 Contra Costa 1.4 miles (air) northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Dam, approximately 25 miles (air) southwest to Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  UCD57881  Bromus carinatus Beecher Crampton 1956-5-14 3393 Contra Costa Just east of old Nortonville. 7 miles southwest of Antioch. Comment
  UCD58220  Bromus carinatus P. B. Kennedy 1916-5-21 46 X Contra Costa Between Diablo and Summit. Comment
  UCD58246  Bromus carinatus A. A. Beetle 1942-3-22 2931 Contra Costa Brooks Island in San Francisco Bay. Comment
  UC53787  Bromus carinatus var. carinatus J. Burtt Davy Apr 1897 Contra Costa Point Isabel; Western Middle California, Point Isabel 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
  CAS-BOT-BC149542  Bromus carinatus var. carinatus R. E. Frenkel 1964-2-24 378 Contra Costa On Giant Road at its junction with Atlas Road, Richmond. 16 Comment
  SEINET11695933  Bromus carinatus var. marginatus Unknown 1956-5-14 3393 Contra Costa 7 mi SW of Antioch, just E of old mining town of Nortonville Comment
  CHSC21623  Bromus catharticus Willis Ball 1975-3-25 503 Contra Costa Contra Loma Regional Park. In area #1. Under olive trees in picnic area ca. 50 yds w of main parking lot ca. 50 yds s of the lake. 36 Comment
  CHSC116648  Bromus diandrus Lowell Ahart; Josephine Guardino 2016-4-19 20790 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the sides ot the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  JEPS127239  Bromus diandrus Lowell Ahart, Josephine Guardino 2016-4-19 20790 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 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
  UC1948970  Bromus diandrus William J. Ferlatte, L. Maynard Moe 1970-4-27 1238 Contra Costa San Francisco Bay: Red Rock Island Comment
  SEINET5541898  Bromus diandrus J. Hamai 1985-1 s.n. Contra Costa Russell Reserve. Comment
  POM300689  Bromus hordeaceus Mary L. Bowerman 1933-4-15 1870 Contra Costa Canyon south of Arroyo del Cerro: Rocky knoll 250 feet below spring. Comment
  UC579854  Bromus hordeaceus Annetta Carter 1936-4-19 1117 Contra Costa San Francisco Bay, Red Rock Red Rock; San Francisco Bay, Red Rock Comment
  UC60206  Bromus hordeaceus Jos. Burtt Davy 1899-4-19 7866 Contra Costa Las Trampas Creek Comment
  UC692343  Bromus hordeaceus Mary L. Bowerman 1931-5-13 839 Contra Costa Mount Diablo, Pine Canyon, 1 mi above spring Pine Canyon; Mount Diablo, Pine Canyon Comment
  UC691134  Bromus laevipes Mary L. Bowerman 1933-6-7 2264 Contra Costa Mount Diablo, between Meridian and North Peaks Mount Diablo Comment
  UCD36914  Bromus madritensis Beecher Crampton 1956-5-14 3385 Contra Costa 6.7 miles southwest of city of Antioch, along ridge between old coal mining towns of Somersville and Nortonville. Comment
  CAS-BOT-BC162353  Bromus madritensis Mary L. Bowerman 1935-4-19 2863 Contra Costa Mount Diablo. Near Turtle Rock. 457 Comment
  UC691209  Bromus madritensis subsp. madritensis Mary L. Bowerman 1935-5-16 2986 Contra Costa Mount Diablo, Russelman Park Russelman Park; Mount Diablo, Russelman Park 381 Comment
  UC691214  Bromus madritensis subsp. madritensis Mary L. Bowerman 1933-5-11 2087 Contra Costa Mount Diablo, Inner Black Hills Inner Black Hills; Mount Diablo, Inner Black Hills Comment
  UC692334  Bromus madritensis subsp. madritensis Mary L. Bowerman 1935-5-3 2962 Contra Costa Mount Diablo, Sloan Road Mount Diablo; , Sloan Road 487 Comment
  UC677559  Bromus madritensis subsp. rubens A. A. Beetle 1942-3-22 2930 Contra Costa Taber Island, small Island off north west side of Brooks Island, San Francisco Bay, Contra Costa County. Comment
  SEINET10523815  Bromus rigidus Alan A. Beetle 1942-3-22 Beetle 2932 Contra Costa Brooks Island, San Francisco Bay, near Richmond. Comment
  CDA29540  Bromus sterilis D. G. Kelch, Troy MacGregor 2009-5-1 9 .29 Contra Costa Carquinez Strait; Fernandez Ranch in valley bottom along Christie Rd. Comment
  UC2028418  Bromus sterilis Barbara Ertter 2001-5-10 17637 Contra Costa Mount Diablo, Juniper Trail above Laurel Dell Comment
  UC2028356  Caesalpinia gilliesii Barbara Ertter with Tony Morosco 1998-7-11 16374 Contra Costa Along Willow Avenue near SW corner of Antioch National Wildlife Refuge Comment
  JEPS111868  Cakile maritima D. G. Kelch 2004-7-9 04 .313 Contra Costa Rodeo Shoreline 0 Comment
  UC765774  Calandrinia breweri R. F. Hoover 1939-4-13 4019 Contra Costa head west branch Markley Canyon Comment
  CAS-BOT-BC438367  Calandrinia ciliata V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley Comment
  CAS-BOT-BC438365  Calandrinia ciliata unspecified No date on label s.n. Contra Costa Antioch Comment
  JEPS111740  Calendula arvensis D. G. Kelch 2005-3-11 05 .40 Contra Costa McEwen Road Carq. Shoreline EBRP. West of Martinez Highschool. 192 Comment
  UC1563731  Callitriche longipedunculata Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8144 Contra Costa West and adjacent Clifton Court Forebay, ca. 15 air miles SW od Stockton. SE Contra Costa County. Comment
  UC2027722  Callitriche marginata Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15512 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  UC570769  Callitriche marginata H. L. Mason 1932-3-20 6852 Contra Costa Deer Valley; Briones Road Comment
  UC2029142  Calochortus argillosus Barbara Ertter with Alan Prather 2003-6-7 18193 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, Valley View Trail at NE corner of park. Comment
  JEPS112497  Calochortus luteus D. G. Kelch 2004-5-7 04 .180 Contra Costa Ca ada del Cierbo 40 Comment
  HSC93902  Calochortus pulchellus C. Newberry 1994-4-30 7250 Contra Costa Mt. Diablo State Park, trail from Mitchell Canyon Parking to Donner Creek 900 Comment
  JEPS122394  Calochortus pulchellus Nisrine Machaka-Houri 2014-5-17 NG 14 Contra Costa Black Point Trail, Mitchell Canyon, Mt. Diablo State Park. Comment
  JEPS125942  Calochortus pulchellus D. W. Taylor 2001-4-26 17627 Contra Costa Black Diamond Mines Regional Preserve; 1 mile SSW of Nortonville (site); growing on access road to PG&E electrical transmission lines. Comment
  SBBG33410  Calochortus pulchellus A. D. E. Elmer -Jun-1903 4631 Contra Costa Mount Diablo Comment
  UC194919  Calochortus pulchellus H. M. Hall 1916-5-30 10132 Contra Costa near Pine Canyon; Mt. Diablo 365 Comment
  UC204208  Calochortus pulchellus A. D. E. Elmer Jun 1903 4631 Contra Costa Mount Diablo 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
  JEPS112510  Calochortus superbus Christopher Thayer 1996-6-7 Contra Costa Oursan Trail above Hampton rd. East Bay Municipal Utility District property Comment
  RSA0029672  Calochortus venustus Barbara Ertter, Susan D'Alcamo 1998-6-12 16156 Contra Costa North Gate Road on west flank of Mount Diablo, ca 1/2 mile below upper Turtle Rock Ranch buildings. 518 Comment
  UC697175  Calycadenia truncata Mary L. Bowerman 1936-9-1 3536 Contra Costa between North Peak and the mouth of Perkins Canyon North Peak; Mount Diablo 487 Comment
  UC1948945  Calystegia purpurata William J. Ferlatte, L. Maynard Moe 1970-4-27 1236 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC691902  Calystegia purpurata Mary L. Bowerman 1932-9-24 1588 Contra Costa ridge running w from Twin Peaks (Mount Diablo); , ridge running w from Twin Peaks 335 Comment
  UC1794950  Calystegia purpurata subsp. purpurata R. K. Brummitt, J. Strother and B. Baldwin 1997-5-27 19605 Contra Costa Mount Diablo, W side, Deer Flat Road 800 Comment
  UC1057486  Calystegia sepium subsp. binghamiae G. Thomas Robbins 1940-5-19 327 Contra Costa San Joaquin River e Antioch; San Joaquin River e of Antioch Comment
  CAS-BOT-BC209525  Calystegia sepium subsp. limnophila Ira L. Wiggins 1954-9-5 13123 Contra Costa Levee along Bethel Island Comment
  CDA15226  Calystegia sepium subsp. limnophila G. F. Hrusa, D. Crowe 1998-5-8 14355 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg. Comment
  UCD119366  Calystegia sepium subsp. limnophila Jean Shepard; Scott Shepard 2011-8-28 857 Contra Costa Antioch Marina. South side of the San Joaquin River, east of the San Francisco Bay, approximately 3 1/4 miles west of the Antioch Bridge. 0 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
  RSA0059779  Calystegia subacaulis Thekla Mohr 1917-07 3164 Contra Costa Mt. Diablo. Comment
  UC1794983  Calystegia subacaulis subsp. subacaulis R. K. Brummitt and B. Ertter 1998-5-6 19784 Contra Costa Mt. Diablo, NW side, path to Mitchell's Rock 300 Comment
Read comments Aug 3 2013
  UC1084506  Camissonia campestris subsp. campestris G. Thomas Robbins 1940-5-19 328 Contra Costa e Antioch (slope above river); San Joaquin River Comment
  JEPS12784  Camissonia contorta Rimo Bacigalupi with G. T. Robbins 1955-5-4 4977 Contra Costa s. of and above Nortonville (site) 304 Comment
  UC1301105  Camissonia contorta Helen K. Sharsmith 1963-4-7 5293 Contra Costa abandoned orchard near Oakley (s of Antioch); San Francisco Bay Region 15 Comment
  JEPS107069  Camissonia intermedia Barbara Ertter, Chris Thayer 1995-4-25 13989 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Devil's Slide area of Sycamore Canyon, roadside through chaparral zone. 304 Comment
  RSA186718  Camissonia intermedia D. E. Breedlove 1963-5-2 4698 Contra Costa At entrance to Mt. Diablo State Park 4 miles east of Danville Comment
  JEPS111561  Camissonia ovata A. G. Murdock 2004-3-19 221 Contra Costa Luzon: Sycamore Ave. just east of Rodeo/Hercules where train crosses Highway 4 (Luzon). Top of ridge to south of road. 60 Comment
  UC1784913  Camissoniopsis hirtella Barbara Ertter with Mary Bowerman 1994-6-19 12842 Contra Costa Mount Diablo State Park E of Walnut Creek; Muir Picnic Area on Summit Road 1005 Comment
  JEPS99558  Camissoniopsis intermedia 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
  RSA0068484  Camissoniopsis intermedia Katie Gallagher, Nick Jensen 2014-4-26 191 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  CAS-BOT-BC266436  Campanula exigua Alice Eastwood 1915-5-30 4452 Contra Costa Mount Diablo Comment
  JEPS108315  Campanula griffinii David Gowen 2005-5-28 391 Contra Costa Mt. Diablo State Park. Prospectors Gap Road outside of park boundary. Small serpentine area ca 1/4 mile west of junction with Ray Morgan Rd. (dirt). Comment
  JEPS111861  Capsella bursa-pastoris D. G. Kelch 2004-3-12 04 .27 Contra Costa Pinole Valley Hillside and canyon above Wright Road. Off of Pinole Valley Road 220 Comment
  UC1126900  Cardamine californica R. W. Lundh 1933-3-20 215 Contra Costa 2 mi nw Walnut Creek, Canada del Hambro; Concord Quad. 182 Comment
  POM272925  Cardamine californica var. integrifolia Lyman Benson 1935-3-16 6277 Contra Costa Mitchell Canyon near Clayton; Mt. Range: Mt. Diablo; Watershed: Walnut Creek. 244 Comment
  RSA272927  Cardamine californica var. integrifolia Lyman Benson 1935-3-16 6263 Contra Costa Mt. Diablo, Watershed: Walnut Creek; Mountain Range: Mt. Diablo. 915 Comment
  UC10419  Cardamine californica var. integrifolia W. H. Brewer 1862-5-1 1039 Contra Costa Walnut Creek 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
  JEPS100083  Cardamine oligosperma G. Smick 2003-5-30 GAS 200 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC691066  Cardamine oligosperma Mary L. Bowerman 1932-3-6 1100 Contra Costa e fork Sycamore Canyon (near trail, Mount Diablo); Mount Diablo, e fork Sycamore Canyon Comment
  UC2028048  Cardamine oligosperma Barbara Ertter 1998-2-15 15914 Contra Costa Shell Ridge Open Space on northwest base of Mount Diablo, outcrops on north side of Joaquin Ridge south of Indian Creek, +/- wooded. Comment
  CDA40557  Cardaria chalepensis V. Guise & B. Slate 2014-4-8 PDR# 070 P06223871 Contra Costa Clayton; 11501 Marsh Creek Road, 0.5 mile east of Morgan Territory Road, East Bay Regional Park District property. 0 Comment
  CAS-BOT-BC281739  Carduus pycnocephalus Mary L. Bowerman 1935-5-25 3079 Contra Costa Mount Diablo. North Rd 2.4 miles from entrance (by shepherd's camp) 304 Comment
  UC2028217  Carduus pycnocephalus Barbara Ertter with Christopher Baysdorfer 1998-5-10 16129 Contra Costa West-center Lime Ridge Open Space northwest of Mount Diablo. Comment
  CAS-BOT-BC281805  Carduus tenuiflorus John Thomas 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
  UC2028309  Carduus tenuiflorus Barbara Ertter, Susan D'Alcamo 1998-6-12 16193 Contra Costa North Peak Trail south of Prospectors Gap on east side of Mount Diablo summit. Comment
  UC691960  Carex barbarae Mary L. Bowerman 1938-10-10 3724 Contra Costa juntion between North and South Roads: along stream Mount Diablo 624 Comment
  UC70619  Carex barbarae Jos. Burtt Davy 1899-4-19 7846 Contra Costa Glorietta inner coast range mountains Comment
  SEINET10653000  Carex bifida Lewis S. Rose 1935-5-16 Rose 35163 Contra Costa Mt. Diablo, Wet spots around springs. Comment
  CAS-BOT-BC34932  Carex densa Mary L. Bowerman 1935-5-16 3001 Contra Costa Mount Diablo. Russelman Park Road at Gregory Ranch junction. 289 Comment
  UC1026409  Carex globosa John Thomas Howell 1953-3-15 28923 Contra Costa Rock City Mt. Diablo Comment
  CAS-BOT-BC119426  Carex obnupta N. Stone 1941-4-5 23 Contra Costa Lake Anza, Wildcat Canyon. 198 Comment
  UC1949084  Carex pendula Barbara Ertter with Jim Dunne, David Gowen, Lech Naumovich 2009-12-3 19797 Contra Costa upper (south) end of San Pablo Dam Reservoir northwest of Orinda Comment
  CDA33135  Carex praegracilis D. G. Kelch, Andrew G. Murdock 2005-3-24 5 .064 Contra Costa Carquinez Strait Region; Southern Point Pinole. Comment
  UC2029197  Carex serratodens Barbara Ertter with Michelle Lee et al. 2002-6-29 17964 Contra Costa Lower Curry Creek on east side of Mount Diablo, private property just above Morgan Territory Comment
  UC692012  Carex serratodens Mary L. Bowerman 1935-5-8 2969 Contra Costa 2 mi <West> entrance (West road, gully w of chaparral); Mount Diablo 213 Comment
  JEPS25119  Carex subbracteata G. Thomas Robbins 1959-4-18 3985 Contra Costa 1/2 mi e Pt. San Pablo (overlooking San Pablo Bay); San Pablo Bay, Richmond 7 Comment
  CAS-BOT-BC115561  Carex tumulicola Peter H. Raven 1957-7-5 11051 Contra Costa At tip of Point Isabel. Comment
  OBI13975  Carpenteria californica Neil Havlik 1968-5-19 201 Contra Costa Tilden Botanical Garden, Charles Lee Tilden Regional Park, E of Berkeley Comment
  CDA966  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
  JEPS23818  Castilleja affinis subsp. affinis G. Thomas Robbins 1959-4-18 3990 Contra Costa about 0.25 mi e and above Pt. San Pablo; Richmond 30 Comment
  UC525863  Castilleja affinis subsp. affinis Robert W. Gardner 1934-3-30 57 Contra Costa 3 mi s Mt. Diablo Comment
  UC691558  Castilleja affinis subsp. affinis Mary L. Bowerman 1931-3-28 559 Contra Costa above Mitchell Rock (Mount Diablo); Mount Diablo Comment
  RSA0029778  Castilleja applegatei subsp. martinii Barbara J. Ertter 2000-7-29 17446 Contra Costa Donner Basin on north side of Mount Diablo, Falls Trail south of Wild Oat Canyon. 488 Comment
  UCSB39456  Castilleja applegatei subsp. martinii Fritzke, Sue 1980-3-29 Contra Costa 0.5 miles from the east end of Ball Rd., in the Shell Ridge Open Space Area, SE of the rock quarry 124 Comment
  JEPS65193  Castilleja attenuata L. R. Heckard 1971-4-15 2474 Contra Costa 5.5 mi n Morgan Territory road intersection with Manning road (e of Mt. Diablo) Comment
  UC27147  Castilleja attenuata H. M. Hall 1901-4-5 Contra Costa Mt. Diablo; San Francisco Bay Region 640 Comment
  UC1481545  Castilleja densiflora subsp. densiflora Neil Havlik 1980-5-14 917 Contra Costa e side Pt. Pinole Regional Shoreline Comment
  UCD122422  Castilleja exserta Christine Armer 1992-5-10 7 Contra Costa Beechwood Drive at Reliez Valley Road. 182 Comment
  JEPS15212  Castilleja exserta subsp. exserta C. M. Belshaw 1936-5-11 2096 Contra Costa 5.25 mi e Danville; Mt. Diablo 289 Comment
  JEPS15607  Castilleja exserta subsp. exserta R. Bacigalupi and G. Thomas Robbins 1955-5-4 4972 Contra Costa e outskirts Concord (field along Treat Lane, in Clayton Valley); Clayton Valley, Concord 60 Comment
  JEPS19496  Castilleja exserta subsp. exserta Rimo Bacigalupi 1956-5-11 5640 -B Contra Costa .33 mi e Pinole (between State Hwy 4 and Santa Fe Ry right-of-way, 0.25 mi e of junction with U.S. Hwy 40) 22 Comment
  UC27244  Castilleja exserta subsp. exserta R. C. Marsh 1900-4-5 Contra Costa Oakley; Mount Diablo Region Comment
  CAS-BOT-BC241277  Castilleja latifolia Alice Eastwood 1915-6-21 4740 Contra Costa San Leandro Comment
  JEPS15184  Castilleja rubicundula subsp. lithospermoides C. M. Belshaw 1936-5-11 2095 Contra Costa 5.25 mi e Danville; Mt. Diablo Quad. 289 Comment
  UC691574  Castilleja rubicundula subsp. lithospermoides Mary L. Bowerman 1933-5-11 2081 Contra Costa ridge towards w end Inner Black Hills (on s side); Mount Diablo Comment
  CDA29227  Castilleja wightii D. G. Kelch 2002-6-17 2 .013 Contra Costa Carquinez Strait; Vaca Canyon. 1.5 kilometers east of Pig Sale on Alhambra Valley Road. 0 Comment
  UC2046339  Casuarina Barbara Ertter with Brad Olson 1994-5-7 12741 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge, edge of San Francisco Bay. Comment
  CDA24865  Caulanthus flavescens Jim Jokerst 1989-3-31 3078 Contra Costa East of creek in Brushy Creek Canyon. 0 Comment
  JEPS116912  Caulanthus lasiophyllus David Gowen 2009-4-4 978 Contra Costa West face near summit of hill east of Las Trampas Ridge, just northwest of junction of Del Amigo and Sulpher Springs trails. Comment
  CAS-BOT-BC48831  Ceanothus cuneatus W. W. Carruth 1902-3-1 s.n. Contra Costa Pine Ridge Moraga Valley Comment
  CAS-BOT-BC48838  Ceanothus cuneatus Mary L. Bowerman 1931-2-28 527 Contra Costa Near top of south road Comment
  POM136472  Ceanothus cuneatus H. P. Chandler 1901-4-5 977 Contra Costa Mt. Diablo Comment
  JEPS42191  Ceanothus oliganthus var. sorediatus W. L. Jepson 1908-4-4 3003 Contra Costa West Branch of San Pablo Creek Berkeley hills Comment
  UC18334  Ceanothus oliganthus var. sorediatus State Survey 1862-5-17 1005 Contra Costa Mt. Diablo Comment
  UC692590  Ceanothus oliganthus var. sorediatus Mary L. Bowerman 1932-5-6 1424 Contra Costa Mitchell Canyon Mount Diablo, Mitchell Canyon Comment
  HSC18334  Ceanothus thyrsiflorus D. A. Shally 1965-4-18 34 Contra Costa Canyon, 1.5 mi. NE of Canyon Store on 'fire trail Comment
  JEPS75545  Centaurea calcitrapa P. F. Yorks 1975-6-21 457 Contra Costa on Hampton Road (ca. 1.6 mi s of Bear Creek Road in Hampton Road Natural Reserve, n of Briones Reservoir); Briones Reservoir, Hampton Road Natural Reserve 180 Comment
  JEPS99513  Centaurea melitensis Mary Bowerman 1994-6-19 Contra Costa Mount Diablo, Muir Area. Comment
  CAS-BOT-BC284465  Centaurea solstitialis E. M. Zeile 1921-10-1 41 Contra Costa Rodeo Comment
  OBI16865  Centaurea solstitialis Robert F. Hoover 1966-8-31 9946 Contra Costa Jctn of Tassajara and Freitas Rd, E of Danville Comment
  CDA35655  Centaurium tenuiflorum Vince Guise 2011-7-8 PDR# 1649686 Contra Costa San Ramon; 100 feet north of north end of Claremont Crest Way. 0 Comment
  UC1050885  Centranthus ruber N. Floy Bracelin 1942-5-17 1287 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1069518  Centromadia fitchii H. S. Yates 1934-9-2 4086 Contra Costa 2 mi s Mt. Diablo; Mt. Diablo Quad. 579 Comment
  CAS-BOT-BC288543  Centromadia fitchii L. S. Rose 1941-10-13 41464 Contra Costa 1 mile E of Walnut Creek 50 Comment
  CAS-BOT-BC288874  Centromadia parryi subsp. congdonii R. E. Preston 1998-10-6 1178 Contra Costa Along flood plain of Alamo Creek, along Dougherty Rd, N of the Alameda/Contra Costa County line 143 Comment
  UC1069557  Centromadia parryi subsp. congdonii H. S. Yates 1934-9-2 4072 Contra Costa 1 mi ne Danville; Mt. Diablo Quadrangle Comment
  UCD130136  Centromadia parryi subsp. congdonii Robert E. Preston 1998-10-6 1179 Contra Costa San Ramon, in pasture on west side of San Ramon Valley Road, 0.2 mile north of Pine Valley Road. 129 Comment
  CAS-BOT-BC288879  Centromadia parryi subsp. congdonii David D. Keck 1933-11-2 2610 Contra Costa San Ramon, Cow Creek Canyon Rd, 0.5 mile from turnoff Comment
  CAS-BOT-BC288883  Centromadia parryi subsp. congdonii John Thomas Howell 1932-10-16 10820 Contra Costa Near San Ramon Comment
  UCD148253  Centromadia pungens Robert E. Preston 2013-6-21 2915 Contra Costa 3.5 mi SW of Byron. 72 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-BC279205  Centromadia pungens subsp. pungens John Thomas Howell 1930-9-28 5489 Contra Costa 2 miles from Concord on road to Walnut Creek Comment
  JEPS111721  Centromadia pungens subsp. pungens D. G. Kelch 2004-6-19 04 .288 Contra Costa Crockett Immediately West (almost under) Carquinez Bridge along San Pable Ave. 10 Comment
  JEPS65191  Centromadia pungens subsp. pungens L. R. Heckard 1971-4-15 2476 Contra Costa 3 mi s Byron (at Holey Road) Comment
  UC306676  Centromadia pungens subsp. pungens A. D. E. Elmer 1903-5-1 4392 Contra Costa Walnut Creek Comment
  UC89008  Centromadia pungens subsp. pungens Mrs. K. Brandegee 1892-6-1 Contra Costa Antioch Comment
  CAS-BOT-BC279199  Centromadia pungens subsp. pungens A. D. E. Elmer 1903-5-1 4392 Contra Costa Walnut Creek Comment
  UC2028506  Centromadia pungens subsp. pungens Barbara Ertter with Mary Bowerman, Lisa Schultheis 1998-8-21 16406 Contra Costa North side Shell Ridge Open Space west of Mount Diablo, near pond at Wiget Lane entrance Comment
  UC1594173  Cephalanthus occidentalis var. californicus Jerry Powell 1991-8-15 1612 Contra Costa Antioch National Wildlife Refuge Comment
  UC692408  Cerastium glomeratum Mary L. Bowerman 1931-3-7 545 Contra Costa Mt. Diablo, Sheep Camp Spring Comment
  RSA0069381  Cerastium glomeratum Katie Gallagher, Nick Jensen 2014-4-26 208 Contra Costa Las Trampas Regional Wilderness. 487 Comment
  UC2028161  Cerastium glomeratum Barbara Ertter 1998-4-4 15947 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, SE of Indian Valley School. Comment
  CAS-BOT-BC137007  Cercocarpus betuloides var. betuloides H. L. Dale 1927-3-1 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC137010  Cercocarpus betuloides var. betuloides Mary L. Bowerman 1930-6-14 325 Contra Costa Mount Diablo. Summit area Comment
  UC1127921  Cercocarpus betuloides var. betuloides R. C. Wilson 1935-3-28 153 Contra Costa Top of Mount Diablo Mount Diablo 1158 Comment
  UC691105  Cercocarpus betuloides var. betuloides Mary L. Bowerman 1932-9-3 1538 Contra Costa Meridian Peak summit, Mount Diablo Meridian Peak; Mount Diablo, Meridian Peak Comment
  UC90158  Chaenactis glabriuscula var. glabriuscula C. F. Baker 1903-4-27 2940 Contra Costa Antioch Paicfic Coast, Antioch Comment
  RSA0027635  Chamaesyce serpillifolia subsp. serpillifolia Barbara Ertter, Chris Thayer 1996-10-25 15359 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park. 91 Comment
  UC42419  Cheilanthes gracillima W. H. Brewer 1862-5-28 1171 Contra Costa summit Mt Diablo Comment
  JEPS79597  Cheilanthes intertexta Edward Lee 1978-12-20 Contra Costa Mt. Diablo Comment
  UC1607652  Chenopodium ambrosioides Barbara Ertter, B. Olson, D. Lake, L. Hosley and A. Youngson 1991-10-20 10883 Contra Costa just w Antioch marina (levee at n-center of preserve, at end of road); Dow Wetlands Preserve Comment
  UC630416  Chenopodium berlandieri Paule Guiget and Annetta Carter 1939-8-13 1453 Contra Costa Treat Ave. se Concord 53 Comment
  UC14076  Chenopodium californicum Chesnut and Drew 1889-4-18 Contra Costa Antioch; sand hills Comment
  JEPS75512  Chlorogalum pomeridianum var. pomeridianum P. F. Yorks 1975-6-29 460 Contra Costa n. Briones Reservoir (ca. 1.5 km. s. of Bear Creek Rd. on Hampton Rd. in Hampton Rd. Natural Reserve); Hampton Rd. Natural Reserve 200 Comment
  SJSU9368  Chloropyron molle subsp. molle W. Savage 1979-6-15 1267 Contra Costa 100' W of Harris Harbor Channel, 0.25 mi N of Harris Harbor Comment
  UCD99655  Chorizanthe biloba var. biloba M. Wiesendanger 1925-5-1 1479 Contra Costa San Miguel. Comment
  UC692212  Chorizanthe membranacea Mary L. Bowerman 1931-5-7 803 Contra Costa Mount Diablo just below crest s side North Peak Ridge; Mount Diablo, North Peak ridge Comment
  UCD99773  Chorizanthe membranacea P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UCSB27372  Chrysolepis chrysophylla Havlik, Neil 1969-7-18 Contra Costa About one-half mile from Skyline Blvd. on the Huckleberry Trail, Oakland Hills 396 Comment
  CAS-BOT-BC30112  Chrysolepis chrysophylla var. minor C. Keeper 1924-9-25 s.n. Contra Costa Moraga ridge Comment
  JEPS37791  Chrysolepis chrysophylla var. minor W. L. Jepson 1944-7-23 27535 Contra Costa Moraga Ridge Comment
  JEPS38066  Chrysolepis chrysophylla var. minor W. L. Jepson Oct 1909 3495 Contra Costa Moraga Ridge Comment
  JEPS48971  Chrysolepis chrysophylla var. minor H. M. Wheeler 1944-1-16 27512 Contra Costa Moraga Ridge; Oakland Hills Comment
  UC20919  Cicuta maculata var. bolanderi Jos. Burtt Davy 1900-6-7 6668 Contra Costa near Martinez Comment
  CAS-BOT-BC277974  Cirsium cymosum John Thomas Howell 1942-7-19 17039 Contra Costa Near Rock City, Mt. Diablo Comment
  UC691380  Cirsium cymosum var. cymosum Mary L. Bowerman June 1942 3848 Contra Costa South Road se of Rock City 502 Comment
  UC691389  Cirsium cymosum var. cymosum Mary L. Bowerman 1933-6-20 2323 Contra Costa Median Ridge Donner Canyon Comment
  JEPS59176  Cirsium occidentale var. californicum W. L. Jepson 1921-5-22 9213 Contra Costa common midway on mountain Mt. Diablo Comment
  SD245260  Cirsium occidentale var. venustum David Keil, Barbara Ertter, et al 2000-6-18 28815 D Contra Costa Mount Diablo State Park. Lower part of Jumper Trail above Laurel Dell picnic area. 914 Comment
  CAS-BOT-BC285728  Cirsium vulgare Walter Knight 1978-8-27 3194 Contra Costa Contra Loma Regional Park 30 Comment
  CAS-BOT-BC162631  Clarkia R. D. Stone 1983-5-17 509 Contra Costa On ridge at northe end of Walker Ranch, near Alameda County line ca. 9 mi. NE of Livermore and 1 mi. NNE of Brushy Peak, upper Kellogg Creek drainage 342 Comment
  CAS-BOT-BC162566  Clarkia affinis Alice Eastwood 1923-5-4 11734 Contra Costa Mt. Diablo Comment
  JEPS78818  Clarkia affinis Edward Lee 1936-5-24 2158 Contra Costa about 2 mi se Curry Canyon; Morgan Territory, Marsh Creek Comment
  UC112975  Clarkia affinis Katharine Brandegee 1907-6-16 Contra Costa hills between Antioch and Marsh Creek Comment
  UC692492  Clarkia affinis Mary L. Bowerman 1933-4-26 1925 Contra Costa ese North Peak (North Peak Ridge, s face); Mount Diablo 609 Comment
  UC692501  Clarkia affinis Mary L. Bowerman 1933-5-18 2123 Contra Costa Blackberry Spring Mount Diablo Comment
  UC924273  Clarkia affinis H. S. Reed 1940-4-30 344 Contra Costa ne slopes Mount Diablo (Marsh Creek road) 243 Comment
  CAS-BOT-BC162562  Clarkia affinis Mary L. Bowerman 1931-5-13 843 Contra Costa Pine Canyon floor one mile above the Sulphur Spring - Mount Diablo Comment
  UC2028167  Clarkia affinis Barbara Ertter 1998-5-3 16077 Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, near Wall Point. Comment
  SBBG40396  Clarkia amoena W. J. Dress 1951-7-3 3466 Contra Costa near rd a few mi S of Moraga 152 Comment
  JEPS43657  Clarkia biloba Ivar Tidestrom June, 1895 Contra Costa Crockett Comment
  JEPS99586  Clarkia biloba Mary Bowerman 1995-7-2 Contra Costa Mount Diablo, foot trail between Back Canyon and Donner Canyon. In Donner side of ridge. Comment
  UC85545  Clarkia biloba Katharine Brandegee 1907-7-4 Contra Costa banks between Martinez and Port Costa Comment
  UCD21831  Clarkia biloba C. Thayer 1994-8-1 s.n. Contra Costa West side of Lafayette Ridge, Lafayette. Comment
  CAS-BOT-BC163604  Clarkia biloba subsp. biloba A. D. E. Elmer 1903-5-1 4319 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC163609  Clarkia biloba subsp. biloba Mary L. Bowerman 1935-6-15 3139 Contra Costa Eagle Point ridge below Ransom Point 822 Comment
  SBBG60245  Clarkia concinna L. G. Yates 1895-1 Contra Costa Martinez Comment
  JEPS43618  Clarkia concinna subsp. concinna W. L. Jepson 1923-6-10 9987 Contra Costa Upper Marsh Creek Mt. Diablo Comment
  UC306515  Clarkia concinna subsp. concinna A. D. E. Elmer May, 1903 4336 Contra Costa Mount Diablo Comment
  CAS-BOT-BC171989  Clarkia epilobioides K. Brandegee s.n. Contra Costa Antioch Comment
  UCSC000483  Clarkia modesta Jean M. Nelson 1937-5-8 s.n. Contra Costa Small canyon at the head of Markley Canyon, north of Mount Diablo Markley Canyon, Mount Diablo - Somersville Comment
  POM257244  Clarkia purpurea subsp. purpurea H. L. Mason 1928-4-26 4379 Contra Costa Around Berkeley and Oakland. Comment
  CDA33413  Clarkia purpurea subsp. quadrivulnera D. G. Kelch, D. A. Weinstein 2011-5-28 11 .539 Contra Costa Carquinez Strait Region.; W of Martinez. N of end of Hillside Pl. Comment
  UC1122404  Clarkia purpurea subsp. quadrivulnera C. M. Belshaw 1936-5-9 2077 Contra Costa 1 1/2 mi e Mulligan Hill (near plot 13); Mt. Diablo Quadrangle Comment
  POM300659  Clarkia purpurea subsp. quadrivulnera Mary L. Bowerman 1930-6-5 263 Contra Costa Mount Diablo: west road 5.8 miles from entrance 457 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
  UCD104921  Clarkia purpurea subsp. quadrivulnera Jennifer Davies 1982-4-11 3 Contra Costa 1 mile NW of South Checking Station on South Gate Road, Mt. Diablo. 487 Comment
  CAS-BOT-BC172365  Clarkia purpurea subsp. viminea Paul F. Covel 1940-5-12 1743 Contra Costa Summit of Mt. Diablo Comment
  CAS-BOT-BC165038  Clarkia rubicunda Peter H. Raven 1957-6-20 10950 Contra Costa Hillside at Inspiration Point, east end of Tilden Regional Park 365 Comment
  UC114011  Clarkia rubicunda Katharine Brandegee 1908-7-3 Contra Costa n side Point Isabel (type locality) Comment
  UCD32418  Clarkia unguiculata Beecher Crampton 1950-5-13 574 Contra Costa Southwest Walnut Creek. 30 Comment
  JEPS43337  Claytonia exigua subsp. exigua H. L. Mason 1931-4-5 Contra Costa se of Mt. Diablo (on road from Marsh Creek to Livermore); Upper Marsh Creek Comment
  UC172943  Claytonia exigua subsp. exigua C. F. Baker 1903-4-28 2816 Contra Costa Mt. Diablo, Mithcell's Canyon Comment
  UC692544  Claytonia exigua subsp. exigua Mary L. Bowerman 1932-3-12 1110 Contra Costa Alamo Canyon (e-facing bank 15 ft above the stream) Alamo Canyon; Mount Diablo 350 Comment
  CAS-BOT-BC439170  Claytonia exigua subsp. exigua Alice Eastwood 1915-5-30 4532 Contra Costa Unspecified Comment
  POM164051  Claytonia exigua subsp. exigua C. F. Baker 1903-4-28 4624 Contra Costa Mitchell s canon, Mt. Diablo. Comment
  CAS-BOT-BC439331  Claytonia gypsophiloides Alice Eastwood 1921-6-11 10600 Contra Costa Mt. Diablo summit Comment
  JEPS112036  Claytonia parviflora D. G. Kelch 2003-3-21 03 .64 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 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
  UC1618110  Claytonia perfoliata Donald G. Nelson 1937-3-30 466 Contra Costa along Marsh Creek Rd. between Claytonville and Byron Comment
  CAS-BOT-BC440076  Claytonia perfoliata subsp. perfoliata John Thomas Howell 1933-5-14 11273 Contra Costa Hills east of St. Mary's College Comment
  CAS-BOT-BC443683  Claytonia perfoliata subsp. perfoliata Walter Knight 1965-3-1 904 Contra Costa Antioch dunes Comment
  UC1136717  Claytonia perfoliata subsp. perfoliata R. C. Wilson 1935-3-12 121 Contra Costa 1.5 mi ne Danville; Mt. Diablo Quad. 198 Comment
  UC517966  Claytonia perfoliata subsp. perfoliata John Thomas Howell 1931-3-10 5755 Contra Costa 7 mi from Clayton (on Livermore road, e side of Mt. Diablo); Mt. Diablo Comment
  UC7914  Claytonia perfoliata subsp. perfoliata J. Burtt Davy 1895-4-7 983 Contra Costa Antioch Comment
  SEINET5336417  Claytonia perfoliata subsp. perfoliata C. M. Fryer 1948-4-11 6 Contra Costa In shady soptes, Mt. Diablo. Comment
  UCD100829  Claytonia perfoliata subsp. perfoliata Robert L. Rudd 1947-3-24 23 Contra Costa Picnic Ground, Wildcat Canyon. Comment
  UC1795716  Claytonia rubra subsp. depressa Barbara Ertter, Brad Olson, Diane Lake 1996-4-14 14591 Contra Costa North Peak of Mt. Diablo; open rocky flats. Comment
  UC2031506  Clematis lasiantha Barbara Ertter with Travis Columbus 1990-6-10 9104 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill ridge ENE of Briones Peak Comment
  UC692085  Clematis lasiantha Mary L. Bowerman 1930-6-7 272 Contra Costa summit Mt. Diablo Comment
  UC1980320  Clinopodium vulgare Barbara Ertter with David Gowen 2011-10-6 20919 Contra Costa Tilden Regional Park in hills east of Berkeley, lower Vollmer Peak Trail southeast of Big Spring picnic area Comment
  SEINET9290098  Clytostoma callistegioides Unknown 2009-6-3 Contra Costa Residence in San Ramon, California. See USCH plant ID files. Plant sent to USCH for identification. Query letter included on specimen. Comment
  UCD123532  Collinsia bartsiifolia Annetta M. Carter 1933-4-23 299 Contra Costa above the San Joaquin River, between Antioch Bridge and Antioch. Comment
  JEPS5870  Collinsia bartsiifolia var. bartsiifolia Fred Shoemaker 1938-4-11 Contra Costa 3 mi w Byron Comment
  UC26677  Collinsia bartsiifolia var. bartsiifolia J. Burtt Davy 1895-4-7 877 Contra Costa Antioch Comment
  JEPS65197  Collinsia heterophylla L. R. Heckard 1971-4-15 2470 Contra Costa along Morgan Territory Rd (7 mi N of intersection with Manning Rd); Mt. Diablo 487 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
  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
  UC672470  Collinsia sparsiflora var. collina Herbert L. Mason 1929-3-15 5051 Contra Costa Nortonville Comment
  UC691586  Collinsia sparsiflora var. collina Mary L. Bowerman 1931-3-21 593 Contra Costa Sycamore Canyon 350 Comment
  UC766264  Collinsia sparsiflora var. collina R. F. Hoover 1938-3-5 2817 Contra Costa mouth of Kirker Creek Canyon Comment
  JEPS6335  Collinsia sparsiflora var. collina Mary L. Bowerman 1932-3-12 1112 Contra Costa Alamo Canyon. 365 Comment
  JEPS100146  Collinsia sparsiflora var. sparsiflora G. Smick 2003-3-25 GAS 97 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1196815  Collinsia sparsiflora var. sparsiflora J. P. Tracy 1900-3-24 627 Contra Costa near Point Richmond; Region about San Francisco Bay 3 Comment
  UC1612419  Collinsia tinctoria R. Raiche 1982-6-19 20460 Contra Costa Mt. Diablo Comment
  UCD164881  Conium maculatum Henry House 1995-5-20 1995- 13 Contra Costa Adjacent to Walnut Blvd., approximately 1.25 km south of Marsh Creek Road. 30 Comment
  UC2028030  Conyza canadensis Barbara Ertter 1997-9-14 15802 Contra Costa WSW base of Mount Diablo, along creek at fence line between Pine Ridge and lower Wall Point Road from Macedo Ranch. Comment
  UC2028964  Conyza floribunda Barbara Ertter 2003-2-8 18091 Contra Costa Richmond Field Station (UC-Berkeley), interior open space next to Egret Drive. Comment
  UC1051043  Coprosma baueri N. Floy Bracelin 1942-11-1 2348 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC32964  Cordylanthus nidularius John Thomas Howell 1942-7-19 17044 Contra Costa NE of Deer Flat, Mt. Diablo Comment
  RSA0006004  Cordylanthus nidularius J. T. Howell 1942-7-19 17044 Contra Costa Northeast of Deer Flat, Mount Diablo Comment
  JEPS21718  Cordylanthus pilosus subsp. pilosus John Thomas Howell 1955-8-24 30902 Contra Costa near Diablo Country Club; Mt. Diablo, S base of Comment
  SEINET12765203  Cordylanthus pilosus subsp. pilosus Barbara Ertter, Lynne Hosley 1992-8-29 11266 Contra Costa East of Moutn Diablo in canyon along Coyote Trail.; 0 Comment
  UC2028256  Cordylanthus pilosus subsp. pilosus Barbara Ertter, Tony Morosco 1998-9-18 16420 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, western quarry area. Comment
  POM181454  Cornus californica I. L. Wiggins 1930-4-18 4593 Contra Costa East end of Jersey Island. Comment
  UC192419  Cornus glabrata E. L. Greene 1886-5-25 Contra Costa Walnut Creek 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
  UC1618361  Cortaderia jubata Barbara Ertter 1991-9-28 10854 Contra Costa e end of Schmidt Street at El Cerrito recycling center, s end of Hillside Natural Area El Cerrito; , Hillside Natural Area, Schmidt Street Comment
  RSA666415  Cortaderia jubata Barbara Ertter 1991-9-28 10854 Contra Costa [El Cerrito.] Comment
  UC2028523  Cortaderia jubata Barbara Ertter 1997-9-14 15814 Contra Costa Southwest side of Mount Diablo, Secret Trail at head of Pine Canyon. Comment
  UC2028555  Cortaderia selloana Barbara Ertter 1998-11-15 16459 Contra Costa North side Mount Olympia on north side Mount Diablo. Comment
  CAS-BOT-BC169514  Corylus cornuta subsp. californica H. E. McMinn 1925-1-1 s.n. Contra Costa Lead of San Leandro Creek Comment
  JEPS111824  Corylus cornuta var. californica A. G. Murdock 2004-4-30 261 Contra Costa Vaca Canyon 165 Comment
  JEPS99943  Cotoneaster pannosus G. Smick 2003-6-6 GAS 218 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2028952  Cotoneaster pannosus Barbara Ertter 2000-7-16 17388 Contra Costa lower Pine Creek in Diablo Foothills Regional Park. Comment
  UC2032803 Image available Cotula australis Doran, Andrew Scott 2012-3-20 673 Contra Costa Brooks island loading dock, North side of island. Comment
  CAS-BOT-BC291337  Cotula coronopifolia Walter Knight; et al 1979-4-13 3359 Contra Costa Point Emmet, Browns Island Comment
  UCR182905  Crassocephalum crepidioides G. Fred Hrusa 2006-1-18 16841 A Contra Costa San Pablo, at Stanton and San Pablo Ave Comment
  UC2028453  Crassula aquatica Barbara Ertter with Joanne Kerbavaz 2000-8-20 17506 Contra Costa Hidden Pond on south side of Mount Diablo Comment
  UC692557  Crassula aquatica Mary L. Bowerman 1935-6-21 3154 Contra Costa e. Turtle Rock pool; Mt. Diablo Comment
  UC692658  Crassula aquatica Mary L. Bowerman 1935-6-21 3154 Contra Costa e. Turtle Rock pool; Mt. Diablo Comment
  UC2028185  Crassula aquatica Barbara Ertter 1998-5-3 16059 Contra Costa Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. Comment
  UC1948949  Crassula connata William J. Ferlatte, L. Maynard Moe 1970-4-27 1234 Contra Costa San Francisco Bay: Red Rock Island Comment
  CDA19637  Crepis bursifolia Doreen Smith, Wilma Follette 2003-10-25 s.n. Contra Costa San Francisco Bay Area; Briones Park. 0 Comment
  JEPS117992  Crepis pulchra Zoya Akulova-Barlow 2011-6-13 Contra Costa Between west end of Gladys Street and Kearney Street. Comment
  UC1607510  Cressa truxillensis Barbara Ertter with CNPS members 1992-1-19 10895 Contra Costa n.w. corner Concord Naval Weapons Station (Hastings Slough); Hastings Slough Comment
  CDA35288  Croton californicus F. J. Brucato 1962-8-21 Contra Costa Antioch, Wilbur Ave, 1 mile west of Hwy 24. 0 Comment
  SEINET7716179  Croton californicus Chesnut, Drew 1889-4-18 Contra Costa Antioch Comment
  CDA15280  Crypsis schoenoides G. F. Hrusa, D. Crowe, R. York 1998-7-17 14718 Contra Costa Sacramento Delta; Few plants in dry areas of now dry drainage/wash through disturbed grasslands at E end of Dow Chemical property. Spreading-prostrate, annual. Comment
  CDA32859  Crypsis schoenoides D. G. Kelch 2010-10-5 10 .421 Contra Costa The Delta; Just east of Antioch bridge. Comment
  RSA0033934  Crypsis schoenoides Barbara Ertter, Chris Thayer 1996-10-25 15360 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park. 91 Comment
  CAS-BOT-BC190081  Crypsis schoenoides R. E. Frenkel 1964-9-17 864 Contra Costa On Marsh Creek Road at shore of Marsh-Kellogg Creek Reservoir. 45 Comment
  SEINET11268164  Crypsis schoenoides Barbara Ertter, Chris Thayer 1996-10-25 15360 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
  SEINET4343820 Image available Crypsis vaginiflora Unknown 1989-9-30 8865 Contra Costa Tilden Regional Park E of El Cerrito, East Bay Skyline Nat'l Recreation Trail (= Nimitz Way), small dried pond ca 1 1/4 mi NW of Inspiration Point. Comment
  UC2028311  Cryptantha decipiens Barbara Ertter, Susan D'Alcamo 1998-6-12 16165 Contra Costa North Peak Trail from Devil's Elbow on SE side of Mount Diablo summit. Comment
  UC2028982  Cryptantha decipiens Barbara Ertter 2000-5-14 17016 Contra Costa Donner Basin on north side of Mount Diablo, Falls Trail north of Wild Oat Canyon. Comment
  JEPS99572  Cryptantha flaccida Mary Bowerman 1991-5-21 Contra Costa Mount Diablo, by Jim White Trail [Deer Flat Rd.] Comment
  CAS-BOT-BC168062  Cryptantha hooveri A. A. Heller 1908-4-16 8888 Contra Costa Sand hills east of Antioch 22 Comment
  UC78673  Cryptantha hooveri Katharine Brandegee May 1894 Contra Costa near Antioch Comment
  UC691633  Cryptantha micromeres Mary L. Bowerman 1933-4-22 1901 Contra Costa w of Cave Point; Mount Diablo, Inner Black Hills Comment
  UC691340  Cryptantha microstachys Mary L. Bowerman 1933-5-25 2183 Contra Costa w end Oyster Ridge (steep n-facing slope, s-face); Mount Diablo 411 Comment
  UC691349  Cryptantha muricata Mary L. Bowerman 1934-4-21 2536 Contra Costa Muir Area Mount Diablo Comment
  UC691394  Cryptantha nevadensis var. rigida Mary L. Bowerman 1932-3-27 1143 Contra Costa At base of Mitchell Rock Mount Diablo Comment
  RSA39871  Cuscuta californica P. A. Munz 1937-10-8 12200 Contra Costa near Antioch 8 Comment
  CDA7755  Cuscuta japonica Niang 2008-2-13 PDR# 1454473 Contra Costa Carquinez Strait; Rodeo, 2 California St. 0 Comment
  UC691854  Cuscuta subinclusa Mary L. Bowerman 1935-6-1 3118 Contra Costa n side Meridian Peak summit (below house); Mount Diablo 1158 Comment
  UC23280  Cuscuta subinclusa Bolander 1863-1 2436 Contra Costa Moraga Valley Comment
  UCD18453  Cuscuta subinclusa Glen Holstein 2000-7-27 s.n. Contra Costa SE El Sobrante, NE side of San Pablo Ridge. Comment
  CDA23080  Cyclospermum leptophyllum D. G. Kelch, D. A. Weinstein 2008-5-5 8 .09 Contra Costa Carquinez Strait; Richmond. W Chevy s Hill. N parking lot of Hilltop Mall. Comment
  CDA6262  Cymbalaria muralis D. G. Kelch, A. G. Murdock 2005-5-23 5 .376 Contra Costa Carquinez Strait Region; Crockett - Crolona Heights. 6th Street at Lillian Street, Crockett. Comment
  UCD60104  Cynodon dactylon P. W. Lamborn 1972-11-2 AES Contra Costa Nomellini Ranch. Comment
  JEPS100074  Cynoglossum grande S. O'Neil 2003-2-25 SEO 6 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC691770  Cynoglossum grande Mary L. Bowerman 1935-3-15 2733 Contra Costa e. fork Arroyo del Cerro (Mt. Diablo, Peach Tree Springs rd.); Mt. Diablo, e. fork Arroyo del Cerro 228 Comment
  UCD161870  Cyperus James A. Neilson Jr. 1972-10-22 s.n. Contra Costa Contra Costa County. Lower Pine Creek. (Exact location unknown. Coordinates estimated by label maker.) Comment
  CAS-BOT-BC114613  Cyperus eragrostis James McMurphy 1908-10-18 s.n. Contra Costa Antioch Comment
  UC665689  Cyperus eragrostis Thomas Morley 1940-12-3 90 Contra Costa banks at upper end San Leandro Lake (near mouth of Redwood Creek) 129 Comment
  UC2028425  Cyperus esculentus Barbara Ertter 1996-9-19 15293 Contra Costa Antioch Marina Comment
  CAS-BOT-BC113834  Cyperus niger John Thomas Howell 1950-7-5 26633 Contra Costa Spring along North Road, Mt. Diablo. Comment
  CAS-BOT-BC113937  Cyperus odoratus Walter Knight; Irja Knight 1980-8-26 3769 Contra Costa Hercules. Comment
  UC1795750  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; grassland/scrub at northeast corner of area. Comment
  SD243345  Cytisus striatus D. G. Kelch 2007-4-27 07 202 Contra Costa Martinez; on hill NE of Hwy 4 @ Alhambra Road. 79 Comment
  UC2070617  Danthonia californica Barbara Ertter 2002-5-16 17862 Contra Costa Richmond Field Station (UC-Berkeley). 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
  UC692370  Daucus pusillus Mary L. Bowerman 1932-4-27 1404 Contra Costa canyon w. of Riggs Canyon (fork of canyon toward n. end, Oyster Ridge); Mt. Diablo, Oyster Ridge 350 Comment
  OBI16153  Deinandra bacigalupii Robert F. Hoover 1969-8-29 11564 Contra Costa Raymond Rd and Ames St., Livermore Valley Comment
  CAS-BOT-BC287385  Deinandra corymbosa Peter H. Raven 1957-7-5 11052 Contra Costa At tip of Point Isabel Comment
  UCD130661  Deinandra corymbosa Beecher Crampton 1950-6-20 596 Contra Costa Richmond Comment
  UC88925  Deinandra kelloggii K. Brandegee 1889-5-1 Contra Costa Antioch Comment
  UC990571  Deinandra kelloggii James I. McMurphy 1908-10-18 Contra Costa Antioch Comment
  CAS-BOT-BC294021  Deinandra kelloggii John Thomas Howell 1929-7-20 4329 Contra Costa 2 miles s. of Oakley Comment
  SEINET7838969 Image available Deinandra kelloggii K. Brandegee 1907-5-5 19 Contra Costa Near Antioch Comment
  CAS-BOT-BC291809  Deinandra lobbii David D. Keck 1933-11-2 2615 Contra Costa 1 mi. E. of Nichols, N. Contra Costa County Comment
  JEPS20340  Delphinium californicum W. L. Jepson 1918-6-3 7587 Contra Costa n slopes of mt Mt. Diablo, Donner Canyon (by dead streamlet in bottom of canyon) 685 Comment
  JEPS20341  Delphinium californicum W. L. Jepson 1918-6-3 7587 Contra Costa n slopes of mt Mt. Diablo, Donner Canyon (by dead streamlet in bottom of canyon) 685 Comment
  LA207476  Delphinium hansenii H. Lewis; 1946-5-5 604 Contra Costa 1 mi. S. of Sommerville Comment
  UC9188  Delphinium hesperium W. L. Jepson May 23 1891-May 24 1891 Contra Costa Mt. Diablo Comment
  UCD84955  Delphinium hesperium Chuck Hughes 2010-5-19 227 Contra Costa About 0.5 mile south of Vasco Road. 184 Comment
  RSA0029677  Delphinium hesperium subsp. hesperium Barbara J. Ertter, Richard K. Brummitt 1998-5-13 16137 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, head of SE branch of Loughler Loop Trail. 305 Comment
  UC2027807  Delphinium hesperium subsp. hesperium Barbara Ertter with Holly Forbes 1997-4-20 15545 Contra Costa North base of Mount Diablo, trail to Back Creek from Mitchell Canyon trailhead. Comment
  UC2027941  Delphinium hesperium subsp. pallescens Barbara Ertter with Alan Whittemore, Joanne Kerbavaz, et al. 2001-5-22 17646 Contra Costa South side Mount Diablo, Sycamore Creek Road at Devils Slide area. Comment
  UC765793  Delphinium nudicaule R. F. Hoover 1938-5-4 3340 Contra Costa Marsh Creek Canyon Comment
  RSA398660  Delphinium nudicaule John Doyen, Glenn A. Gorelick 1966-4-22 s.n. Contra Costa Russelman Park, Mt. Diablo State Park. 305 Comment
  SEINET12099569  Delphinium nudicaule J. G. Lemmon s.n. Contra Costa American Valley and Mt. Diablo Comment
  UC635344  Delphinium patens H. L. Mason 1929-3-29 5136 Contra Costa Marsh Creek Rd 2 mi above Clayton Comment
  JEPS90889  Delphinium recurvatum Dean W. Taylor 1991-5-2 11634 B Contra Costa Byron Hot Springs Road 0.3 mi s of Holey Road (San Joaquin Valley); , Byron Hot Springs Road 39 Comment
  LA93067  Delphinium recurvatum Lewis; 1963-4-11 1337 Contra Costa Byron Hot Springs Rd Comment
  UC692140  Delphinium variegatum Mary L. Bowerman 1931-4-25 758 Contra Costa between the old stage road and Oak Knoll Picnic Grounds; Mount Diablo 822 Comment
  CAS-BOT-BC17030  Delphinium variegatum Miss Mary Leolin Bowerman 1913-5-22 3652 Contra Costa Mount Diablo. Rock City 518 Comment
  UC13975  Delphinium variegatum subsp. variegatum Chestnut and Drew 1889-4-6 Contra Costa Concord Comment
  UC188656  Delphinium variegatum subsp. variegatum Edw. L. Greene 1899-3-23 Contra Costa Byron Comment
  CAS-BOT-BC11024  Dendromecon rigida John Thomas Howell 1925-10-11 1497 Contra Costa Moraga Ridge, Oakland Hills Comment
  JEPS51668  Dendromecon rigida H. H. Haworth 1917-3-3 Contra Costa Maraga Ridge Comment
  UC1051410  Dendromecon rigida Helen K. Sharsmith 1954-3-24 4408 Contra Costa canyon above old Nortonville Mines (near Kirker Pass Road between Clayton and Antioch) 304 Comment
Read comments Oct 2 2015
  UC634890  Dendromecon rigida H. L. Mason 1925-1-11 1177 Contra Costa Moraga Ridge Comment
  UC60233  Deschampsia cespitosa subsp. beringensis Jos. Burtt Davy 1900-6-7 6667 Contra Costa near Martinez Martinez Comment
Read comments Sep 27 2007
  CAS-BOT-BC192544  Deschampsia cespitosa subsp. holciformis Walter Knight; Joanne Dean 1978-8-14 3151 Contra Costa Browns Island Comment
  JEPS97566  Deschampsia elongata R. D. Stone 1980-7-13 273 Contra Costa Huckleberry Trail Oakland Hills, near Alameda-Contra Costa county line (NE of intersection of Skyline Blvd. and Snake Rd.) 396 Comment
  UC1050948  Diascia barberae N. Floy Bracelin 1942-8-9 2243 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC64062  Dichelostemma capitatum Harley P. Chandler 1901-3-22 854 Contra Costa near Martinez; San Francisco Bay Region Comment
  UC72521  Dichelostemma capitatum Harley P. Chandler 1901-3-22 880 Contra Costa Port Costa Comment
  POM276989  Dichelostemma capitatum subsp. capitatum Lyman Benson 1931-3-18 2665 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 Comment
  JEPS112492  Dichelostemma congestum D. G. Kelch 2005-4-24 05 .171 Contra Costa Franklin Canyon Franklin Canyon. Collier Hill. West Carbon. On knoll between fenced hill and railroad cut. 60 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
  UC1300935  Dichelostemma congestum Helen K. Sharsmith 1962-5-20 5071 Contra Costa ne slope Mount Diablo (Headwaters of Marsh Creek); San Francisco Bay Region, , Marsh Creek 304 Comment
  UC692031  Dichelostemma congestum Mary L. Bowerman 1931-4-11 711 Contra Costa Pine Canyon, near mouth Mount Diablo Comment
  SJSU7703  Diplacus tricolor J. A. Johnson 1956-4-12 20 Contra Costa 1.5 mi E of Concord in El Monte District Comment
  CHSC22236  Dirca occidentalis Robert A. Schlising 1962-2-21 2079 Contra Costa Berkeley-Oakland hills of westernmost part of county. Comment
  OBI78484  Dirca occidentalis H. E. McMinn 1925-3-30 1402 Contra Costa Near summit Thornhill Rd and Skyline blvd Comment
  UC581346  Dirca occidentalis Helen K. Sharsmith 1932-9-18 50 Contra Costa head of Wildcat Canyon Berkeley Hills (streamside) Comment
  RSA603002  Dirca occidentalis Joseph A. Ewan 1934-3-10 8643 Contra Costa 2 miles below Orinda Road bridge, Wildcat Canyon Comment
  UC1055905  Disocactus ackermannii N. Floy Bracelin 1944-6-25 1339 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  UC3560  Disporum hookeri unknown 1862-5-16 1099 Contra Costa s of Mount Diablo Comment
  UC792334  Disporum hookeri J. A. Rattenbury 1948-3-8 96 Contra Costa on s side of road nr creek 1/2 mi e of Oakland tunnel 213 Comment
  POM300632  Disporum hookeri var. hookeri Mary L. Bowerman 1931-3-22 606 Contra Costa Alamo Canyon, east fork. Comment
  JEPS102900  Distichlis spicata Barbara Ertter, Chris Thayer 1996-10-25 15369 Contra Costa North Gate Road Mount Diablo 121 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
  JEPS128149  Dittrichia graveolens Eric Wrubel, Robert Steers 2010-10-1 NPS 1 Contra Costa Joh Muir National Historic Site, Martinez. Mount Wand trailhead. Comment
  CHSC21632  Dodecatheon hendersonii Willis Ball 1975-3-9 493 Contra Costa Contra Loma Regional Park. In area #8. On n facing slope near top of hill ca. 550 yds sw of main parking lot ca. 850 yds w of Contra Loma Blvd. 149 Comment
  JEPS112042  Dodecatheon hendersonii A. G. Murdock 2003-2-21 70 Contra Costa Mt. Wanda - Martinez Edge of chaparral, northeastern area of Mt. Wanda property 115 Comment
  UC517947  Dodecatheon hendersonii John Thomas Howell 1931-3-10 5756 Contra Costa on Livermore Road 7 mi from Clayton; e side Mt. Diablo, 7 mi from Clayton Comment
  JEPS17887  Downingia insignis Rimo Bacigalupi with G. T. Robbins 1956-3-26 5531 Contra Costa about 2.5 mi s Byron (just s of S.P.R.R. crossing on road to Bethany, near head of Italian Slough) 6 Comment
  UC1315008  Downingia insignis R. F. Hoover 1967-4-28 10503 Contra Costa Byron Hot Springs Comment
  UC583159  Downingia insignis Lewis S. Rose 1936-4-24 36154 Contra Costa 8 mi s Antioch 30 Comment
  UCD32386  Downingia ornatissima Beecher Crampton 1950-4-22 530 Contra Costa Contra Costa County, 2 miles south of Antioch, on road from Antioch to Lone Tree Valley, in shallow depression along roadside. 60 Comment
  UC924240  Downingia ornatissima var. eximia H. S. Reed 1940-4-30 357 Contra Costa 4 mi s Antioch 15 Comment
  JEPS14473  Downingia pulchella G. Thomas Robbins with Peter H. Raven 1956-4-28 3666 Contra Costa just e. of Martinez junction & 0.1 mi w. of Buchanan Field Rd. State Hwy. 4 Comment
  UC2028037  Draba verna Barbara Ertter 1998-3-7 15933 Contra Costa Rock City picnic area on southwest side of Mount Diablo. Comment
  UC1606408  Dudleya farinosa Barbara Ertter 1992-7-25 11261 Contra Costa s end Point Richmond (near Brickyard Landing, above rr tracks) Comment
  UCD60759  Echinochloa colona Beecher Crampton 1965-9-26 7528 Contra Costa 2 miles south of Brentwood, junction Walnut Ave, and Marsh Creek Road. Comment
  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
  UC2029166  Echinochloa crus-galli Barbara Ertter 2000-7-16 17395 Contra Costa Lower Pine Creek in Diablo Foothills Regional Park. Comment
  UCD37369  Echinochloa crus-pavonis Beecher Crampton 1959-9-3 5451 Contra Costa Contra Costa County, 2 miles north of city of Orinda, Bear Creek, East Bay Municipal Utilities District Project. Comment
  CAS-BOT-BC197225  Echinochloa crus-pavonis Walter Knight; Irja Knight 1977-7-28 3149 Contra Costa Black Diamond Coal Mines Regional Preserve. Somersville Townsite Comment
  SEINET3407322 Image available Echinocystis fabacea var. agrestis Lewis S. Rose 1933-5-13 33165 Contra Costa Marsh creek, Contra Costa County Comment
  UC2027936  Eclipta prostrata Barbara Ertter 1996-9-19 15298 Contra Costa Antioch Marina, edge of Dow Marsh lands. Comment
  UCR11895  Elaeagnus angustifolia E. C. Van Dyke 1941-10-4 s.n. Contra Costa [San Joaquin] river bank east of Antioch 15 Comment
  RSA721534  Eleocharis acicularis var. acicularis Mary L. Bowerman 1975-9-14 s.n. Contra Costa Mount Diablo. Comment
  JEPS111900  Eleocharis macrostachya D. G. Kelch 2005-3-24 05 .62 Contra Costa Point Pinole Southern Pt. Pinole 3 Comment
  UC691971  Eleocharis macrostachya Mary L. Bowerman 1938-5-28 3645 Contra Costa Maple Spring, on upper margin, especially in the NW corner Mount Diablo Comment
  UC691969  Eleocharis parishii Mary L. Bowerman 1931-4-11 705 a Contra Costa Sulphur Spring in Pine Canyon Mount Diablo 137 Comment
  UC2013045  Eleocharis parishii Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14918 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek Comment
  UC2070610  Elymus caput-medusae Barbara Ertter 1999-1-17 16477 Contra Costa Morgan Territory Regional Preserve SE of Mount Diablo, north end Coyote Ridge Trail. Comment
  UC2028395  Elymus elymoides var. elymoides Barbara Ertter with Richard K. Brummitt 1998-5-13 16141 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, south leg of Loughler Loop Trail just west of pass over central ridge, NW-facing slope Comment
  RSA722472  Elymus glaucus Barbara Ertter 2002-6-16 17953 Contra Costa Richmond Field Station, southwest end of overgrown meadow near boundary with park, edge of thick growth facing fence. Comment
  UC766736  Elymus glaucus R. F. Hoover 1941-5-19 5105 Contra Costa Claremont Rd Berkeley Hills (e side of hills) Comment
  CAS-BOT-BC203431  Elymus glaucus subsp. glaucus Mary L. Bowerman 1934-4-21 2542 Contra Costa Mount Diablo. Beside Pioneer Camp road east of Pioneer Camp Comment
  UC691170  Elymus multisetus Mary L. Bowerman 1933-6-7 2262 Contra Costa North Peak Mount Diablo 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
  UC691179  Elymus trachycaulus Mary L. Bowerman 1932-10-16 1635 Contra Costa ne 2632 (n slope); Mount Diablo, Eagle Ridge 701 Comment
  UC692424  Elymus trachycaulus Mary L. Bowerman 1935-5-18 3030 Contra Costa n summit parkijng area; Mount Diablo 1066 Comment
  UC691699  Emmenanthe penduliflora Mary L. Bowerman 1933-4-26 1916 Contra Costa Mount Diablo: North Peak ridge east southeast of the peak, south face 609 Comment
  UCD36037  Epilobium brachycarpum Beecher Crampton 1949-8-5 489 Contra Costa Between the cities of Orinda and Moraga, on Hill Road, off of Moraga Road, right at summit. 106 Comment
  UC1606307  Epilobium ciliatum subsp. ciliatum Barbara Ertter, Chris Thayer 1993-5-7 11693 Contra Costa on Wildcat Canyon Rd 1/2 mi se Inspiration Point (e of Tilden Park, marshy area); East Bay Municipal Utilities land, Hopkins Spring 304 Comment
  UC873435  Epilobium minutum Lewis S. Rose 1941-5-15 41240 Contra Costa summit Mt. Diablo 1188 Comment
  UC692443  Epilobium torreyi Mary L. Bowerman June 1942 3847 Contra Costa lower Rock City Camp; Mount Diablo Comment
  UC2070524  Epipactis gigantea 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 18565 Contra Costa Long Ridge on west side of Mount Diablo, stringer below Moses Rock Spring on Burma Road. Comment
  CDA31168  Epipactis helleborine D. G. Kelch 2008-9-2 8 .305 Contra Costa Carquinez Strait.; Pinole Valley Park. Comment
  UC692136  Equisetum hyemale subsp. affine Mary L. Bowerman 1930-8-24 432 Contra Costa <a> little above end of rd. Mitchell Canyon 251 Comment
  RSA309336  Equisetum hyemale var. affine Edward Lee, C. M. Belshaw 1935-7-28 1700 Contra Costa Western end of Las Trampas Ridge. 427 Comment
  UC692132  Equisetum laevigatum Mary L. Bowerman 1931-10-31 1063 Contra Costa South Rd. in bend of rd. a little below junction Mt. Diablo 853 Comment
  JEPS111943  Equisetum telmateia subsp. braunii D. G. Kelch 2003-8-13 03 .130 Contra Costa Pinole Creek 68 Comment
  POM300620  Equisetum telmateia var. braunii Mary L. Bowerman 1939-3-31 3737 Contra Costa Johnny Walker Spring. 732 Comment
  CAS-BOT-BC204545  Eragrostis curvula George W. Murray 1964-7-24 s.n. Contra Costa 1 to 2 miles east of Clayton, Marsh Creek Road Comment
  CAS-BOT-BC204547  Eragrostis curvula John Thomas Howell 1954-9-5 30026 Contra Costa Marsh Creek Springs Park Comment
  UC2028469  Eragrostis mexicana subsp. virescens Barbara Ertter 1997-8-24 15777 Contra Costa Mount Diablo, Summit Road just above Junction Station Comment
  JEPS100099  Eremocarpus setiger A. Langston 2003-7-9 AL 64 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS19181  Ericameria arborescens W. L. Jepson 1920-9-6 9086 Contra Costa Mt. Diablo 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
  CAS-BOT-BC131504  Ericameria arborescens H. E. McMinn 1922-3-1 394 Contra Costa Mt. Diablo, 2 or 3 miles from Tall Gate Comment
  UC36562  Ericameria linearifolia State Survey 1054 Contra Costa Mt. Diablo Comment
  UCD102386  Ericameria linearifolia Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. North Peak Road to North Peak. 920 Comment
  CAS-BOT-BC300591  Erigeron foliosus var. franciscensis Roxana S. Ferris 1924-6-14 s.n. Contra Costa Summit of Mt Diablo 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
  UC1606301  Erigeron foliosus var. franciscensis Barbara Ertter with Lynne Hosley and Sid Cowles 1992-6-7 11083 Contra Costa small knoll e Round Top; Oakland Hills, Sibley Volcanic Regional Preserve Comment
  UC87533  Erigeron foliosus var. franciscensis T. S. Brandegee 1883-7-1 Contra Costa Antioch Comment
  UC482974  Erigeron foliosus var. franciscensis Mrs. G. Earle Kelly 1932-7-20 Contra Costa after junction on mountain road Mount Diablo Comment
  UC723893  Erigeron petrophilus var. petrophilus Joseph Andorfer Ewan 1936-8-5 9735 Contra Costa Wildcat Creek Comment
Read comments Jul 1 2007
  JEPS111660  Erigeron philadelphicus var. philadelphicus A. G. Murdock 2004-4-30 251 Contra Costa McEwen Road West side of road 130 Comment
  UC1543059  Erigeron philadelphicus var. philadelphicus Donald G. Nelson 1938-4-24 566 Contra Costa 1 mi n Mount Diablo (Marsh Creek Highway) Comment
  UC691862  Erigeron philadelphicus var. philadelphicus Mary L. Bowerman 1933-5-18 2118 Contra Costa Blackberry Spring Mount Diablo, Blackberry Spring Comment
  UC697208  Erigeron philadelphicus var. philadelphicus Mary L. Bowerman 1935-5-16 2998 Contra Costa Russelman Park road at Gregory Ranch junction; Mount Diablo 289 Comment
  UC691672  Eriodictyon californicum Mary L. Bowerman 1932-9-3 1530 Contra Costa Mount Diablo , Muir Area (Burn (1931)) Comment
  UC761971  Eriogonum angulosum R. F. Hoover 1937-9-2 2713 Contra Costa 4 mi n Antioch Comment
  JEPS108225  Eriogonum covilleanum David Gowen 2005-5-6 281 Contra Costa Mt. Diablo State Park. Talus slope on the south side of North Peak. Comment
  JEPS112016  Eriogonum fasciculatum subsp. foliolosum Dean G. Kelch and Andrew G. Murdock 2004-3-19 AGM 233 Contra Costa Hercules - Carbon. Comment
  CAS-BOT-BC250385  Eriogonum gracile Robert F. Hoover 1940-11-23 4695 Contra Costa Two miles west of Byron Comment
  UC1094040  Eriogonum gracile Lewis S. Rose 1955-10-17 55187 Contra Costa sand hills, Antioch Antioch 15 Comment
  UC691087  Eriogonum gracile Mary L. Bowerman 1932-8-27 1524 Contra Costa s Turtle Rock; Mount Diablo Comment
  CAS-BOT-BC250387  Eriogonum gracile John Thomas Howell 1929-7-20 4330 Contra Costa 2 miles s. of Oakley Comment
  UC692048  Eriogonum gracile var. gracile Mary L. Bowerman 1931-9-12 1038 Contra Costa spur jutting into west fork of Mitchell Canyon Mount Diablo, Mitchell Canyon 838 Comment
  UC692149  Eriogonum inerme Mary L. Bowerman 1935-6-1 3112 Contra Costa largest ridge between Ransom Point and Mitchell-Pine divide; Mt. Diablo 1082 Comment
Read comments May 14 2019
  UC692111  Eriogonum luteolum var. luteolum Mary L. Bowerman 1932-10-22 1637 Contra Costa road to Quicksilver Mine (flats at base of North Peak); Mount Diablo, North Peak Comment
  CAS-BOT-BC268908  Eriogonum nudum var. auriculatum Mary L. Bowerman 1931-9-12 1037 Contra Costa Mount Diablo. Mitchell Canyon: Spur jutting out into west fork 838 Comment
  CAS-BOT-BC268916  Eriogonum nudum var. auriculatum Mary L. Bowerman 1932-9-17 1585 Contra Costa Mount Diablo. Donner Canyon, West fork: of west fork 335 Comment
  JEPS107089  Eriogonum nudum var. auriculatum Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14675 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay; grassland/scrub at northeast corner of area. Comment
  UC692045  Eriogonum nudum var. auriculatum Mary L. Bowerman 1930-8-24 424 Contra Costa Mitchell Canyon, lower trail Mount Diablo Comment
  UC692203  Eriogonum nudum var. auriculatum Mary L. Bowerman 1932-9-24 1593 Contra Costa flat-topped ridge above Mitchell Rock; Mount Diablo 441 Comment
  CAS-BOT-BC268912  Eriogonum nudum var. auriculatum Annetta Carter 1940-6-22 1601 Contra Costa Mount Diablo. Lime Ridge 274 Comment
  UC2028205  Eriogonum nudum var. auriculatum Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15662 Contra Costa Point Richmond, crest of road. Comment
  CAS-BOT-BC269816  Eriogonum nudum var. psychicola Peter Rubtzoff 1951-10-7 826 Contra Costa Along lower San Joaquin River, east of Antioch Comment
  JEPS79014  Eriogonum nudum var. psychicola Edward Lee with Annetta Carter 1935-8-17 1631 Contra Costa Antioch Comment
  CAS-BOT-BC33739  Eriogonum nudum var. psychicola Barbara Ertter 1997-8-18 15766 Contra Costa Antioch Dunes (USFWS National Wildlife Refuge) Comment
  RSA0086416  Eriogonum nudum var. psychicola Jerry A. Powell 1962-8-19 308 Contra Costa About 2 miles east of Antioch. Comment
  RSA273155  Eriogonum nudum var. psychicola Glenn A. Gorelick 1967-4-13 s.n. Contra Costa Along Sacramento River behind Little Corral Bar, 1.5 mile east of downtown Antioch Comment
  SEINET10733565 Image available Eriogonum nudum var. psychicola Barbara J. Ertter 1997-8-18 Ertter 15766 Contra Costa Antioch Dunes (USFWS National Wildlife Refuge) on San Joaquin River east of Antioch, southwest corner of refuge north of railroad tracks in former vineyard, fine pale brown sand. Comment
  CAS-BOT-BC267441  Eriogonum truncatum John Thomas Howell 1934-4-8 11816 Contra Costa 10 miles from Clayton on Marsh Creek Road Comment
  POM300579  Eriogonum truncatum Mary L. Bowerman 1933-5-25 2198 Contra Costa Alamo Canyon; above Wilson's barn. Oyster Ridge, west end of south face. Comment
  UC6492 Image available Eriogonum truncatum State Survey 1862-5-29 1186 Contra Costa Camp 71, Marsh's Ranch, Contra Costa Co. Comment
  UCR139461  Eriogonum truncatum J. T. Howell 1934-4-8 11816 Contra Costa San Francisco Bay Region, [Black Hills] 10 mi from Clayton [SE] on Marsh Creek Road 366 Comment
  CAS-BOT-BC267871  Eriogonum umbellatum var. bahiiforme A. D. E. Elmer 1903-7-1 4547 Contra Costa Mount Diablo Comment
  UC306913  Eriogonum umbellatum var. bahiiforme A. D. E. Elmer July, 1903 4547 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC262348  Eriogonum vimineum Mary L. Bowerman 1932-8-27 1524 Contra Costa Mount Diablo. South of Turtle Rock Comment
  CAS-BOT-BC262350  Eriogonum vimineum John Thomas Howell 1955-8-24 30903 Contra Costa Near summit of South Peak, Mt. Diablo 1158 Comment
  CAS-BOT-BC298506  Eriophyllum confertiflorum L. Constance 1933-6-25 E 95 Contra Costa About halfway to the summit of Mount Diablo Comment
  JEPS75549  Eriophyllum confertiflorum var. confertiflorum P. F. Yorks 1974-6-16 176 Contra Costa on Hampton Road 1.6 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  UC691724  Eriophyllum confertiflorum var. confertiflorum Mary L. Bowerman 1930-6-5 254 Contra Costa w road <= n road written above> 5.8 mi from entrance; Mount Diablo Comment
  JEPS34599  Eriophyllum lanatum var. achilleoides W. L. Jepson 1891-5-24 14563 Contra Costa Mt. Diablo Comment
  UC507128  Eriophyllum lanatum var. achilleoides Lincoln Constance 1933-6-25 E 96 Contra Costa sw slopes of Mount Diablo Comment
  UC62979  Eriophyllum lanatum var. achilleoides H. M. Hall 1901-4-5 1755 Contra Costa Mt. Diablo Comment
  UC691668  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1935-5-30 3097 b Contra Costa Eagle Point ridge = between the two n ridges which converge at Twin Peaks; Mt. Diablo, Eagle Point ridge 350 Comment
  UC697147  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1938-6-14 3687 Contra Costa 0.3 mi below Muir Area Mt. Diablo 960 Comment
  CAS-BOT-BC300965  Eriophyllum lanatum var. achilleoides L. Constance 1933-6-25 E 101 Contra Costa South slope, just below summit of Mount Diablo 1066 Comment
  CAS-BOT-BC300967  Eriophyllum lanatum var. achilleoides L. Constance 1933-6-25 E 98 Contra Costa Summti of Mt. Diablo 1158 Comment
  CAS-BOT-BC300975  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1930-6-28 388 Contra Costa Mount Diablo Comment
  CAS-BOT-BC300977  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1933-5-22 2163 Contra Costa Mount Diablo. Cave Point ridge Comment
  POM161398  Eriophyllum lanatum var. achilleoides H. E. McMinn 1922-6-30 98 Contra Costa Roadside on 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
  JEPS107133  Eriophyllum staechadifolium Barbara Ertter, Brad Olson 1994-5-7 12759 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  JEPS111713  Eriophyllum staechadifolium D. G. Kelch 2004-5-21 04 .218 Contra Costa Crockett - West Valona Along San Pablo Ave. ~1 k. west of Carq. Bridge 57 Comment
  CDA29765  Erodium botrys D. G. Kelch, Troy MacGregor 2009-5-1 9 .266 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  UCD150907  Erodium cicutarium James A. Neilson Jr. 1972-11-2 3604 Contra Costa Walnut Creek drainage at State Highway 4. Elevation estimated using Google Earth by label maker. 1 Comment
  UC17062  Erodium macrophyllum J. Burtt Davy 1895-4-7 945 Contra Costa Antioch Comment
  UC765825  Eryngium aristulatum var. aristulatum R. F. Hoover 1937-5-14 2125 Contra Costa Byron Hot Springs Comment
  CDA29692  Eryngium armatum D. G. Kelch, D. A. Weinstein 2009-7-15 9 .494 Contra Costa Carquinez Strait; Point Pinole. Comment
  JEPS17451  Eryngium armatum W. L. Jepson 1922-7-9 9732 Contra Costa Richmond Comment
  CDA38330  Eryngium armatum Chas. Lasser 1960-4-21 s.n. Contra Costa Pittsburg. 0 Comment
  UC1606293  Eryngium articulatum Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10710 Contra Costa n. Pittsburg (Browns Isl., near confluence of Sacramento & San Joaquin rivers, opposite Pittsburg Marina, at water's edge (Botany Cove)); Browns Isl. Comment
  CDA38315  Eryngium jepsonii D. G. Kelch 2004-7-9 4 .297 Contra Costa Carquinez Strait region; Crockett - Carquinez Scenic Drive; just west of Pt. Costa. Comment
  CDA9196  Eryngium jepsonii Christopher Thayer 2000-5-26 s.n. Contra Costa On moist, grassy slope just south of boundary of Rossmoor. Lucas Ranch, Lafayette. 0 Comment
  CHSC67627  Eryngium vaseyi James D. Jokerst 1989-3-28 3062 Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. Comment
  UC1190973  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
  UC1745539  Eryngium vaseyi Annetta M. Carter 1951-5-13 3057 Contra Costa 3.3 mi. S of Byron. Comment
  CAS-BOT-BC40772  Erysimum capitatum Robert F. Hoover 1935-3-10 305 Contra Costa Antioch. Comment
  CAS-BOT-BC40760  Erysimum capitatum Mary L. Bowerman 1935-4-26 2915 Contra Costa Mount Diablo. West of the ridge west of Indian Ceremonial Spring, just below the Old Stage Road. 1005 Comment
  CAS-BOT-BC40763  Erysimum capitatum John Thomas Howell 1926-3-7 1672 Contra Costa Mount Diablo. Near the summit on south side. 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
  UC10536  Erysimum capitatum var. capitatum J. Burtt Davy and E. L. Greene 1895-4-7 996 Contra Costa Antioch Comment
  UC762935  Erysimum capitatum var. capitatum R. F. Hoover 1937-5-14 2111 Contra Costa Antioch sand-dunes Comment
  JEPS51717  Eschscholzia caespitosa Edw. L. Greene 1888-3-25 Contra Costa Byron Comment
  CAS-BOT-BC402987  Eschscholzia californica James McMurphy 1909-5-21 s.n. Contra Costa Antioch Comment
  UC692180  Eschscholzia californica Mary L. Bowerman 1932-3-27 1144 Contra Costa near Mitchell Rock (on e side); Mount Diablo Comment
  CAS-BOT-BC402985  Eschscholzia californica A. A. Heller 1908-4-16 8891 Contra Costa Hills east of Antioch 22 Comment
  PASA450  Eschscholzia californica Annetta Carter 1929-3-31 Contra Costa Near Clayton. Hills north of Mt. Diablo Comment
  RSA31770  Eschscholzia californica var. crocea A. A. Heller 1938-4-9 15018 Contra Costa 3 miles southwest of Antioch. Comment
  UCSB5236  Eucrypta chrysanthemifolia Kamb, Peter; Chisaki, Francia 1950-3-18 Contra Costa Black Hills, S of Mt. Diablo, on south road to Mt. Diablo from Danville 365 Comment
  UC570798  Euphorbia crenulata H. L. Mason 1926-3-7 2701 Contra Costa Mount Diablo Comment
  UC692711  Euphorbia crenulata Mary L. Bowerman 1931-3-21 596 Contra Costa Sycamore Canyon; 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
  UCSB22012  Euphorbia lathyris Olson, Glen 1968-7-15 Contra Costa West side of Hope Lane, 0.2 mile north of its junction with St. Mary's Rd. 91 Comment
  CDA17966  Euphorbia oblongata R. M. Case 1999-10-5 PDR 004978 Contra Costa Central California; Wildcat Canyon Rd. at Tilden Park Golf Course above Berkeley. 0 Comment
  JEPS100097  Euphorbia oblongata G. Smick 2003-5-6 GAS 173 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS111951  Euphorbia oblongata D. G. Kelch 2004-6-6 04 .224 Contra Costa Martinez - Train Station Downtown Martinez. Alhambra Creek near bay and railroad Station 2 Comment
  UC1085269  Euphorbia oblongata Rimo Bacigalupi with G. T. Robbins 1956-5-11 5641 Contra Costa 0.25 mi nw (above) Glen Frazer Station (on Santa Fe Railway, along roadside in Franklin Canyon); Franklin Canyon 106 Comment
  UC1087494  Euphorbia oblongata T. C. Fuller 1958-7-30 Contra Costa 3 mi w of Martinez (State Highway 4); State Highway 4 Comment
  CDA4846  Euphorbia oblongata Margaret Bellue, A. Seeley Jun 1955 Contra Costa Highway 4, near Concord. 0 Comment
  SD215496  Euphorbia oblongata Louis C. Wheeler 1958-8-28 7446 Contra Costa Circa 2 miles southwest of Martinez, 0.3 miles northwest of Glen Frazer on Santa Fe, apparently Franklin Canyon. 1.7 miles 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
  JEPS111958  Euphorbia peplus D. G. Kelch 2005-4-2 05 .102 Contra Costa Crockett - Edwards Canyon EBRP Carquinez shoreline. Edwards Creek staging area 24 Comment
  UC1818890  Euphorbia peplus Barbara Ertter, Gary Schoolcraft 1996-4-7 14577 Contra Costa Molate Beach Park on San Francisco north of San Rafael Bridge; south end of parking area, in partial shade of planted shrub. Comment
  UC2029075  Euphorbia peplus Barbara Ertter 2000-7-16 17406 Contra Costa Pine Creek on WNW base of Mount Diablo, willow patch above Pine Pond. Comment
  CHSC97888  Euphorbia portlandica Niang 2006-6-20 PDR 1373984 Contra Costa Annie's Annuals, 801 Chesley Ave. Richmond. 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
  UCD150901  Euthamia occidentalis James A. Neilson Jr. 1972-10-22 3601 Contra Costa Walnut Creek drainage, near mouth of Walnut Creek. Elevation estimated using Google Earth by label maker. 0 Comment
  UC2028487  Festuca arundinacea Barbara Ertter 1998-5-3 16047 Contra Costa Pine Canyon/Stage Road upstream from Dusty Road junction, southwest flank of Mount Diablo Comment
  UC2028589  Festuca arundinacea Barbara Ertter with Mary Bowerman 1996-11-1 15399 Contra Costa North base of Mount Diablo, near Donner Canyon trailhead at end of Regency Drive Comment
  JEPS48472  Festuca californica W. L. Jepson 1943-5-27 20842 Contra Costa n side Black Hills; Mt. Diablo Comment
  CHSC116605  Festuca microstachys var. pauciflora Lowell Ahart; Josephine Guardino 2016-4-19 20792 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along south side of road exit at Los Vaqueros Marina, 2.3 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  UCD66330  Festuca rubra P. B. Kennedy 1919-5-1 s.n. Contra Costa North Berkeley. Hills. Comment
  CHSC75044  Foeniculum vulgare Roger Thom 1987-5-18 13 Contra Costa 1.0mi from intersection with Pleasant Hill Rd on Reliez Valley Road. Lafayette. (1600 block) 182 Comment
  UCR5932  Fragaria vesca subsp. californica Charles Prentiss 1966-4-5 5 Contra Costa Tilden Park at Indian Camp, meadow west of parking lot Comment
  CAS-BOT-BC52533  Frangula californica subsp. californica H. E. McMinn 1922-10-17 402 Contra Costa unspecified Comment
  CAS-BOT-BC62925  Frangula californica subsp. tomentella H. E. McMinn s.n. Contra Costa Mt. Diablo. Comment
  UC2027914  Frangula californica subsp. tomentella Barbara Ertter 2000-9-30 17529 Contra Costa Diablo Foothills Regional Park, Stage Road in Pine Canyon. Comment
  CAS-BOT-BC223860  Frankenia salina L. R. Abrams 1916-7-1 5730 Contra Costa Near Martinez Comment
  RSA518721  Frankenia salina Barbara Ertter, E. Neese 1988-10-15 7977 Contra Costa West of I-580 in El Cerrito, west side along Rydin Road north of Central Avenue. Comment
  UCD99590  Frankenia salina John Thomas Howell; Gordon H. True 1972-6-29 48919 Contra Costa on Byron Hot Springs Road southeast of Byron. Comment
  CAS-BOT-BC223393  Fraxinus dipetala Mary L. Bowerman 1935-6-1 3103 Contra Costa Mount Diablo. First small ridge east of Mitchell-Pine divide 1005 Comment
  UC1123360  Fraxinus dipetala C. M. Belshaw 1936-5-15 2128 Contra Costa Stewartsville Mt. Diablo Quad. 228 Comment
  UC692003  Fritillaria affinis Mary L. Bowerman 1931-3-8 562 Contra Costa Mount Diablo, near mouth of Mitchell Canyon Mitchell Canyon; Mount Diablo, Mitchell Canyon Comment
  CAS-BOT-BC136073  Fritillaria affinis Dean William Taylor 1971-3-28 971 Contra Costa Along Morgan Territory Road 304 Comment
  SEINET3559576 Image available Fritillaria lanceolata Lewis S. Rose 1934-3-7 34047 Contra Costa Mount Diablo. Comment
  CAS-BOT-BC130353  Fritillaria liliacea Robert F. Hoover 1938-3-8 2819 Contra Costa Berkeley Country Club Comment
  JEPS99505  Fritillaria liliacea Mary Bowerman 1979-4-3 Contra Costa Mount Diablo, Shell Ridge. Comment
  SEINET196591  Fritillaria liliacea Robert F. Hoover 1938-3-8 2819 Contra Costa Berkeley Country Club. Comment
  RSA87348  Galium andrewsii F. W. Peirson 1923-07 4730 Contra Costa Near summit of Mt. Diablo. 1159 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
  UC1039519  Galium aparine Herbert L. Mason 1932-3-20 6840 Contra Costa Antioch sand hills Comment
  UCR263548  Galium californicum subsp. californicum Barbara Ertter, Susan D'Alcamo 1998-6-12 16202 Contra Costa San Francisco Bay Region, along Curry Canyon Road on south side of Mount Diablo, halfway between Knobcone Point Road and Sheepherder Springs Trail Comment
  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
  UC964759  Galium murale Herbert L. Mason 1944-3-17 Contra Costa Briones Hills Comment
  RSA0029048  Galium murale Barbara Ertter 1999-6-12 16703 Contra Costa Black Hawk Ridge Road between Knobcone Point Road and NE fork of Sycamore Creek, South side of Mount Diablo. 457 Comment
  RSA720805  Galium murale Barbara Ertter, Mary Bowerman, Lisa Schultheis 1995-3-31 13942 Contra Costa Mount Diablo State Park. Lower end of Mitchell Canyon S of Clayton. 183 Comment
  UC2042798  Galium murale Barbara Ertter 1991-6-1 10071 Contra Costa Las Trampas Regional Wilderness in hills W of Danville, paved portion of Rocky Ridge Trail ca. 1 from parking lot. Comment
  JEPS97597  Galium porrigens R. D. Stone 1981-3-23 346 Contra Costa Huckleberry Trail Oakland Hills, near Alameda-Contra Costa county line (northeast of intersection of Skyline Blvd. and Snake Rd.) 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-BC200632  Garrya elliptica H. E. McMinn 1925-3-30 1403 Contra Costa Near summit Thornhill Rd and Skyline Blvd. Comment
  CAS-BOT-BC200636  Garrya elliptica C. H. M. 1919-8-24 s.n. Contra Costa Las Trampas Peak Comment
  UC1281040  Garrya elliptica H. E. McMinn 1925-4 Contra Costa head of San Leandro Creek Comment
  CAS-BOT-BC200625  Garrya elliptica W. W. Carruth 1902-2-1 s.n. Contra Costa East Oakland Hills Comment
  CAS-BOT-BC200627  Garrya elliptica Mary L. Bowerman 1933-3-11 1746 Contra Costa Fossil Ridge, knoll south of 1778 point Comment
  CAS-BOT-BC169945  Garrya fremontii H. E. McMinn 1922-6-2 88 Contra Costa Summit of Mt. Diablo Comment
  CAS-BOT-BC169947  Garrya fremontii Mary L. Bowerman 1930-6-7 s.n. Contra Costa Meridian Peak Summit Comment
  UCD102372  Garrya veatchii Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Burma Road at Mount Diablo. 520 Comment
  UCD66551  Gastridium phleoides Beecher Crampton 1956-5-14 3380 Contra Costa Head of Horse Valley, 5 miles S of Antioch. Comment
  UC692392  Gastridium ventricosum Mary L. Bowerman 1933-5-25 2190 Contra Costa Oyster Ridge, w end of s face Mount Diablo; , Oyster Ridge, w end of s face Comment
  CDA23560  Geranium core-core D. G. Kelch, D. A. Weinstein 2008-1-4 8 .001 Contra Costa Carquinez Strait; Pt Pinole. Along asphalt access road. Comment
  UC17128  Geranium dissectum W. H. Brewer 1862-4-26 998 Contra Costa 6 mi w Martinez Comment
  CDA29060  Geranium molle D. G. Kelch 2006-5-7 6 .154 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  JEPS100092  Geranium molle G. Smick 2003-4-1 GAS 106 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  POM65942  Gilia achilleifolia C. F. Baker 1903-4-28 2951 Contra Costa Mitchell Canyon, Mt. Diablo. Comment
  RSA67597  Gilia achilleifolia Verne Grant, Alva Grant 1948-5-2 8424 Contra Costa in Bear Creek Canyon, 0.5 miles north of summit and ca. 3.8 miles from Orinda-San Pablo road. 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
  UC23730  Gilia achilleifolia subsp. multicaulis Bolander April 1866 6400 Contra Costa Mt. Diablo Comment
  UC691601  Gilia achilleifolia subsp. multicaulis Mary L. Bowerman 1935-4-17 2839 Contra Costa West Road 2 mi from entrance Mount Diablo ((= North Rd.)); , West Road 289 Comment
  UC909027  Gilia achilleifolia subsp. multicaulis Herbert L. Mason 1934-3-31 8053 Contra Costa 11 mi s Marsh Creek Road (on road from Marsh Creek to Livermore); 11 mi s Marsh Creek Road, rd from Marsh Creek to Livermore 609 Comment
  UC963984  Gilia achilleifolia subsp. multicaulis R. F. Hoover 1941-4-11 4831 Contra Costa Marsh Creek Canyon Comment
  RSA67700  Gilia achilleifolia subsp. multicaulis Verne Grant, Alva Grant 1952-5-7 9137 Contra Costa Pioneer Camp, s.w. of Meridian Peak, Mt. Diablo Comment
  JEPS69577  Gilia capitata subsp. staminea W. L. Jepson 1931-4-5 15723 Contra Costa vicinity San Francisco Bay (Nortonville); vicin San Francisco Bay, Nortonville Comment
  RSA566429  Gilia capitata subsp. staminea Peter L. Morrell, Donna S. Krause 1993-5-16 239 Contra Costa Contra Costa County, along sides of raod 100m W of 1701 Wilbur Ave, Antioch, betw Southern Pacific tracks and San Joaquin River (0.5 miles W of Hwy 4/160). Comment
  RSA8346  Gilia capitata subsp. staminea L. S. Rose 1933-4-17 33090 Contra Costa Antioch. Comment
  UC134012  Gilia capitata subsp. staminea C. F. Baker 1903-4-25 2805 Contra Costa Antioch Comment
  UC908108  Gilia capitata subsp. staminea Herbert L. Mason 1929-3-31 5159 Contra Costa Antioch; San Joaquin River Comment
  UCR86951  Gilia capitata subsp. staminea Peter L. Morrell, Donna Krause 1993-5-16 239 Contra Costa Along side of road 100m west of 1701 Wilbur Ave., Antioch, between Southern Pacific tracks and San Joaquin River (0.5 miles west of Calif. Hwy 4/160) 6 Comment
  RSA83089  Gilia capitata subsp. staminea Verne Grant, Alva Grant 1947-4-13 7925 Contra Costa By railroad tracks east of Antioch. Comment
  JEPS85758  Gilia clivorum Roy E. Buck 1989-3-11 1102 Contra Costa 9 air km se Walnut Creek (ca 2.0 air km w of Moses Rock Spring, sw-facing slope on n side of North Gate Rd, 0.3 road mi se of park boundary); Mt. Diablo State Park 207 Comment
  UC691676  Gilia clivorum Mary L. Bowerman 1935-4-26 2920 Contra Costa Summit Mount Diablo Mount Diablo, summit 1158 Comment
  UC963965  Gilia clivorum R. F. Hoover 1938-3-25 2895 Contra Costa Markley Canyon Comment
  JEPS85957  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
  SEINET10972175  Githopsis diffusa subsp. robusta Alice Eastwood 1915-5-30 Eastwood s.n. Contra Costa Comment
  JEPS11816  Githopsis specularioides Chesnut and Drew 1889-4-16 Contra Costa Clayton Comment
  UC692667  Glycyrrhiza lepidota Mary L. Bowerman 1931-5-13 842 Contra Costa canyon floor 1 mi above sulphur spring; Mount Diablo, Pine Canyon Comment
  CDA35615  Gnaphalium californicum I. Godwyn 2011-5-12 PDR# 1649778 Contra Costa Richmond; Wildcat Canyon Regional Park, near McBryde Ave. 0 Comment
  CDA28927  Gnaphalium luteoalbum D. G. Kelch, Abigail Moore, Jessica Kolman 2009-5-3 9 .318 Contra Costa Carquinez Strait; W of 5th St Prairie, Crockett. 0 Comment
  UCR247431  Gnaphalium stramineum Dean Kelch, Abigail Moore 2009-5-30 09 .317 Contra Costa Carquinez Strait, west of 5th St Prairie, Crockett 75 Comment
  UCD32430  Grindelia camporum Beecher Crampton 1950-6-20 594 Contra Costa Richmond, south of Cutting Blvd, open grassy field immediately adjacent to Carlson Blvd. north of Stege. 15 Comment
  CAS-BOT-BC305218  Grindelia hirsutula Ira L. Wiggins 1930-4-17 4577 Contra Costa Near Byron Comment
  CAS-BOT-BC305225  Grindelia hirsutula Evelina Cannon 1900-9-17 s.n. Contra Costa Giant station Comment
  CAS-BOT-BC305227  Grindelia hirsutula Lewis S. Rose 1930-7-22 s.n. Contra Costa Pittsburg Comment
  JEPS89200  Grindelia hirsutula G. Thomas Robbins 1958-10-2 3941 Contra Costa borders of tidal slough along Southern Pacific R.R. just w Carlson Blvd. (near Stege railroad siding); Richmond 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
  UC1606421  Grindelia hirsutula Barbara Ertter 1993-5-9 11719 Contra Costa near Brickyard Landing (bluffs at end of Garan Road, sw corner of Point Richmond); Point Richmond Comment
  UC1618419  Grindelia hirsutula Barbara Ertter, Diane Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10716 Contra Costa west-most point opposite Pittsburg Marina (Browns Island n of Pittsburg near confluence of Sacramento and San Joaquin Rivers); Browns Island Comment
  UC520431  Grindelia hirsutula J. A. Moore and J. A. Steyermark 1931-8-7 3683 Contra Costa 6 mi w Tracy 50 Comment
Read comments Apr 12 2009
  CAS-BOT-BC305236  Grindelia hirsutula L. R. Abrams 1917-9-13 6727 Contra Costa Patterson Pass - east side Comment
  CAS-BOT-BC305248  Grindelia hirsutula John Thomas Howell 1930-9-28 5486 Contra Costa Tunnel Road near Oak Spring Comment
  CAS-BOT-BC305250  Grindelia hirsutula John Thomas Howell 1932-10-8 10796 Contra Costa Tidal flat at mouth of Rodeo Creek Comment
  UC2028054  Grindelia hirsutula var. hirsutula Barbara Ertter with Amy Rusev 1998-1-17 15905 Contra Costa Edge of Lime Ridge Open Space at NW foot of Mount Diablo, around former quarry [subsequently developed] on south side of Ygnacio Valley Road. Comment
  JEPS54107  Guillenia lasiophylla H. P. Chandler 1900-3-24 Contra Costa Briones Hills Region of Mount Diablo Comment
  UC10945  Guillenia lasiophylla W. H. Brewer 1862-4-24 987 Contra Costa Martinez Comment
Read comments Feb 5 2010
  UC1601407  Guillenia lasiophylla Katharine Brandegee 1907-5-3 Contra Costa near Antioch; Judsonville Comment
  POM300575  Guillenia lasiophylla Mary L. Bowerman 1932-3-23 1131 Contra Costa Ridge E of Donner Canyon. 274 Comment
  CAS-BOT-BC304582  Gutierrezia californica James McMurphy 1908-10-18 s.n. Contra Costa Antioch Comment
  POM301854  Gutierrezia californica Mary L. Bowerman 1938-11-12 3729 Contra Costa Lime Ridge toward crest of hillside N of break between 2 chaparral patches. 152 Comment
  UC1051002  Hebe buxifolia N. Floy Bracelin 1943-7-19 2549 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  SEINET10579391  Hedera helix Barbara J. Ertter 1994-10-23 Ertter 13915 Contra Costa Southwest El Cerrito, north edge of Breuner's parking lot, northwest Albany Hill. Comment
  RSA721203  Hedypnois cretica Barbara Ertter, Mary L. Bowerman 1995-6-11 14249 Contra Costa Shell Ridge Recreation Area southwest of Walnut Creek, at west base Mt.Diablo; near Indian Valley School entrance. 91 Comment
  SD241751  Hedypnois cretica Barbara Ertter 1994-5-23 12809 Contra Costa Point Isabel at S end Richmond, Regional Shoreline and marsh at end of Rydin Road. Weedy area of parking lot. Comment
  UC1594170  Helenium bigelovii Jerry Powell 1991-6-29 1611 Contra Costa intertidal zone at river edge Antioch National Wildlife Refuge Comment
  UC32237  Helenium bigelovii Jos. Burtt Davy 1900-6-7 6671 Contra Costa near Martinez Comment
  UC552471  Helenium bigelovii C. L. Swenson 1936-7-9 Contra Costa river sloughs near Antioch; San Joaquin River Comment
  JEPS111680  Helenium puberulum D. G. Kelch 2003-8-13 03 .134 Contra Costa Pinole Creek 68 Comment
  JEPS100139  Helianthella castanea G. Smick 2003-4-1 GAS 115 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS21042  Helianthella castanea W. L. Jepson 1922-5-23 9654 Contra Costa Mt. Diablo; summit 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
  RSA72655  Helianthella castanea J. T. Howell 1940-4-21 15398 Contra Costa Pine Canyon, Mount Diablo Comment
  UC194925  Helianthella castanea H. M. Hall 1916-5-31 10137 c Contra Costa flat on s side Mt. Diablo 1066 Comment
  UC57441  Helianthella castanea H. M. Hall 1901-4-5 1733 Contra Costa Mt. Diablo Region of San Francisco Bay, Mt. Diablo Comment
  RSA565068  Helianthella castanea D. W. Taylor 1992-5-2 13419 Contra Costa Above Selby Siding (ca 1 mile W of Carquinez Bridge), near BM 378. 107 Comment
  CAS-BOT-BC305593  Helianthus californicus L. R. Abrams 1910-10-8 4341 Contra Costa Mt. Diablo 609 Comment
  UC2028434  Helianthus californicus Barbara Ertter with Chris Thayer 1996-10-25 15351 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothill Regional Park Comment
  UC1795663  Helianthus californicus Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14628 Contra Costa Little Pine Creek at northwest foot of Mt. Diablo, along trail connecting North Gate Road to Castle Rock Road, Diablo Foothills Regional Park; along stream above stable, riparian vegetation. 91 Comment
  JEPS111836  Heliotropium curassavicum A. G. Murdock 2004-6-4 327 Contra Costa Pacheco Marsh Near shore on back of dikes 2 Comment
  JEPS111842  Heliotropium curassavicum D. G. Kelch 2004-7-9 04 .307 Contra Costa Muir grave Alhambra Creek, Martinez, Near Muir gravesite 60 Comment
  UC650558  Heliotropium curassavicum Ira L. Wiggins 1930-4-18 4606 Contra Costa Jersey Isl. Comment
  UCD32429  Helminthotheca echioides Beecher Crampton 1950-6-16 593 Contra Costa Richmond. Comment
  CDA37817  Hemizonia congesta Godwyn 2012-6-22 PDR# 1641308 Contra Costa Pleasanton; 7300 Camino Tassajara. 0 Comment
  UC1392954  Hemizonia congesta subsp. lutescens R. F. Hoover 1969-9-1 11568 Contra Costa between San Pablo and Pinole Comment
  CAS-BOT-BC314853  Hemizonia congesta subsp. luzulifolia L. R. Abrams 1910-10-9 4359 Contra Costa Between San Ramon and Dublin Comment
  UC201237  Hemizonia congesta subsp. luzulifolia H. M. Hall 1916-7-24 10254 Contra Costa Richmond Region of San Francisco Bay Comment
  CAS-BOT-BC314861  Hemizonia congesta subsp. luzulifolia Mary L. Bowerman 1931-10-13 1061 Contra Costa Sycamore Valley west of Sycamore Creek, Mount Diablo Comment
  CAS-BOT-BC314871  Hemizonia congesta subsp. luzulifolia H. M. Hall 1917-5-27 10314 Contra Costa Fish Ranch, Berkeley Hills 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
  UCR197900  Hemizonia fitchii Beecher Crampton 1949-7-15 485 Contra Costa Below original site of Judsonville, at head of Lone Tree Valley, along Sand Creek, just before coming to Lee Higgins Empire Ranch 114 Comment
  POM360296  Hemizonia fitchii E. E. Stanford 1930-9-20 2100 Contra Costa Near Walnut Creek Comment
  SEINET3387003 Image available Hemizonia heermannii Lewis S. Rose 1933-10-22 33387 Contra Costa Wildcat Canyon. Comment
  CAS-BOT-BC33236  Hemizonia kelloggii Albert Kellogg 1870-4-22 s.n. Contra Costa near Antioch Comment
  RSA81518  Hemizonia luzulifolia subsp. rudis James I. McMurphy 1909-9-24 s.n. Contra Costa San Ramon. Comment
  RSA81676  Hemizonia luzulifolia subsp. rudis James I. McMurphy 1909-9-24 s.n. Contra Costa San Ramon Road, above Hayward. Comment
  RSA81617  Hemizonia pungens subsp. maritima James I. McMurphy 1909-5-20 s.n. Contra Costa Antioch. Comment
  UCR184664  Hemizonia pungens subsp. pungens Dean Kelch 2005-11-23 06 .507 Contra Costa Point Molate 5 Comment
  SEINET7883354 Image available Hemizonia virgata L. S. Rose 1941-1 41467 Contra Costa 2 mi W of Byron Comment
  CDA38358  Heracleum lanatum A. G. Murdock 2004-4-3 260 Contra Costa Vaca Canyon. Comment
  UCD127538  Heracleum maximum R. Tofsrud 1948-1 s.n. Contra Costa Exact location unknonw. Comment
  JEPS29512  Hesperevax caulescens M. K. Curran May 1886 Contra Costa Antioch Comment
  JEPS116939  Hesperevax caulescens David Gowen 2008-4-21 868 Contra Costa South of Antioch, in Contra Loma Regional Park off Frederickson Lane. North, to northwest facing slope just NW of parking area for Black Diamond Mines Regional Preserve. Comment
  CAS-BOT-BC310195  Hesperevax sparsiflora var. sparsiflora Mary L. Bowerman 1931-4-11 688 Contra Costa Mount Diablo. Pine Canyon 121 Comment
  JEPS111755  Hesperevax sparsiflora var. sparsiflora D. G. Kelch 2005-5-1 05 .203 Contra Costa Crockett - Edwards Canyon 100 Comment
  JEPS33801  Hesperevax sparsiflora var. sparsiflora W. L. Jepson 1931-4-5 15719 Contra Costa Nortonville 457 Comment
  JEPS23520  Hesperocnide tenella Edw. L. Greene Apr., 1889 Contra Costa Pinole Canyon Comment
  CAS-BOT-BC167428  Hesperolinon breweri M. K. Curran 1884-1-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC167445  Hesperolinon breweri K. C. 1884-6-1 s.n. Contra Costa Antioch Comment
  UC311528  Hesperolinon breweri A. D. E. Elmer July, 1903 4545 Contra Costa Mount Diablo Comment
  UC84831  Hesperolinon breweri Mrs. K. Brandegee 1907-6-16 34 Contra Costa hills between Antioch and Marsh Creek (on e side of Mt. Diablo) Comment
  UCR168521  Hesperolinon micranthum J. T. Howell 1931-5-12 6472 Contra Costa Central Western; San Francisco Bay area, Nortonville 488 Comment
  UC194136  Hesperomecon linearis Edward Lee Greene 1887-4-15 Contra Costa Antioch Comment
  UC35090  Hesperomecon linearis W. C. Blasdale 1893-5-13 Contra Costa Antioch Comment
  UC186817  Heterodraba unilateralis F. T. Bioletti 1892-1 Contra Costa Byron Comment
  CDA21567  Heteromeles arbutifolia D. G. Kelch, Mike Park 2008-9-1 8 .3 Contra Costa Carquinez Strait; Lonetree Point. Rodeo Shoreline Park. Rodeo. Comment
  JEPS75475  Heteromeles arbutifolia P. F. Yorks 1975-7-18 479 Contra Costa ca 1.5 km s Bear Creek Rd on Hampton Rd in Hampton Road Natural Preserve (n of Briones Reservoir) 175 Comment
  JEPS79318  Heterotheca sessiliflora subsp. echioides Edward Lee with Annetta Carter 1935-8-17 1624 Contra Costa Antioch; sand-dunes Comment
  JEPS97526  Heuchera micrantha var. pacifica R. D. Stone 1980-7-13 267 Contra Costa Huckleberry Trail Oakland Hills, near Alameda-Contra Costa county line (NE of intersection of Skyline Blvd. and Snake Rd.) 396 Comment
  UC2012988  Hirschfeldia incana Barbara Ertter with Tony Morosco 1996-7-27 15041 Contra Costa Mount Diablo State Park, Cardinet Oaks Road at crossing of Donner Creek. Comment
  JEPS129821  Holcus lanatus Dean G. Kelch 2006-6-23 06 .320 Contra Costa West Valona. West of the Zampa Bridge above San Pablo Ave. Comment
  UC4897718  Holocarpha heermannii Lewis S. Rose 1934-9-9 34462 Contra Costa 9 mi ne Danville Comment
  CAS-BOT-BC325828  Holocarpha heermannii David D. Keck 1933-11-2 2622 Contra Costa 5 mi. S.E. of Clayton on Marsh Creek Road opposite Mt. Diablo Comment
  CAS-BOT-BC325830  Holocarpha heermannii John Thomas Howell 1930-9-28 5487 Contra Costa 1 mile from Walnut Creek on Walnut Avenue to Concord Comment
  CAS-BOT-BC325845  Holocarpha heermannii David D. Keck 1933-11-2 2622 Contra Costa 5 mi. E. of Clayton on Marsh Creek Road just opposite Mt. Diablo Comment
  CAS-BOT-BC325847  Holocarpha heermannii Walter Knight; Harry Reeves 1979-8-25 3403 Contra Costa Contra Loma Regonal Park near Antioch 22 Comment
  POM360676  Holocarpha heermannii L. S. Rose 1932-10-2 32667 Contra Costa Walnut Creek. Comment
  RSA721867  Holocarpha heermannii Barbara Ertter, Brad Olson, Dianne Lake, Seth Adams 1994-9-11 13096 Contra Costa Chaparral Springs addition to Mt. Diablo State Park, north side of Marsh Creek Road at high point southeast of Clayton. Comment
  UC2029014  Holocarpha heermannii Barbara Ertter 1999-8-21 16792 Contra Costa Deer Flat Trail south of Murchio Gap, NW side of Mount Diablo. Comment
  UCD133195  Holocarpha heermannii Ann F. Johnson 1978-8-19 s.n. Contra Costa Mt. Diablo State Park. Trail from Juniper Camp to Deer Flat. Comment
  UC1428043  Holocarpha macradenia David J. Powers 1974-10-6 1001 Contra Costa 100-300 ft e Hwy 80 (100-300 yd s Appian Way); Pinole Comment
  CAS-BOT-BC320223  Holocarpha macradenia Walter Knight; Irja Knight 1977-9-17 3160 Contra Costa At SE corner of Appian Way and Highway I-80. Pinole Comment
  RSA0033853  Holocarpha obconica Barbara Ertter 2002-11-11 18072 Contra Costa Round Valley Regional Preserve east of Mount Diablo, along Round Valley Creek/Miwok Trail. 91 Comment
  UC1357615  Holocarpha obconica R. F. Hoover 1965-9-24 9649 Contra Costa foothills w Byron (between Kellogg and Marsh Creeks) 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-BC320251  Holocarpha obconica H. M. Hall 1930-9-24 12846 Contra Costa Vasco Road at Junction 4 miles west of Byron Comment
  UC913078  Holocarpha obconica David D. Keck and J. Clausen 1933-10-27 2566 Contra Costa Vasco Road at junction with Byron Road Comment
  CAS-BOT-BC324612  Holocarpha virgata David D. Keck 1933-11-2 2623 Contra Costa 5 miles east of Clayton on Marsh Creek Road just opposite Mt. Diablo Comment
  CAS-BOT-BC324616  Holocarpha virgata R. F. Hoover 1969-8-29 11566 Contra Costa Raymond Road and Ames Street, Livermore Valley Comment
  POM179767  Holocarpha virgata subsp. virgata J. T. Howell 1930-9-28 5502 Contra Costa 5.4 miles from Byron on Marsh Creek Road. Comment
  RSA94065  Holocarpha virgata subsp. virgata J. T. Howell 1930-9-28 5501 Contra Costa 5.4 miles from Byron on Marsh Creek Road. Comment
  CAS-BOT-BC284989  Hordeum depressum Ira L. Wiggins 1930-4-17 4578 Contra Costa 1/4 mi. S. of Byron Comment
  UCD85761  Hordeum jubatum V. P. Osterli 1951-7-1 s.n. Contra Costa Oakley area. Comment
  CDA37284  Hordeum marinum subsp. gussoneanum D. G. Kelch 2011-3-31 11 .07 Contra Costa Carquinez Strait Region; Richmond, near Point Pinole Regional Park. Comment
  RSA756860  Hordeum marinum subsp. gussoneanum Barbara Ertter, Jim Jokerst, Dave Magney 1989-4-5 8121 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton; near sea level 0 Comment
  SD211511  Hordeum marinum subsp. gussoneanum Barbara Ertter, Jim Jokerst and Dave Magney 1989-4-5 8121 Contra Costa Southeast Contra Costa County: Alkalai sink West and adjacent to Clifton Court Forebay, circa15 airmiles Southwest of Stockton Comment
  UC691196  Hordeum marinum subsp. gussoneanum Mary L. Bowerman 1933-5-11 2086 Contra Costa Inner Black Hills w of saddle , Inner Black Hills w of saddle (Mount Diablo) Comment
  UC691183  Hordeum murinum subsp. glaucum Mary L. Bowerman 1933-5-25 2188 Contra Costa w end s face Oyster Ridge (Mount Diablo); , w end s face Oyster Ridge 396 Comment
  CAS-BOT-BC284890  Hordeum murinum subsp. leporinum R. E. Frenkel 1964-2-25 382 Contra Costa North of Marsh Creek Road, 1/4 mile west of junction with Walnut Blvd. 33 Comment
  RSA123439  Hordeum murinum subsp. leporinum R. W. Lundh 1933-4-17 229 Contra Costa Bolinas Creek 152 Comment
  JEPS112088  Horkelia californica subsp. frondosa D. G. Kelch 2004-5-2 04 .164 Contra Costa Crockett - Edwards Canyon 125 Comment
  CAS-BOT-BC55475  Hornungia procumbens Volney Rattan 1877-4-1 s.n. Contra Costa Antioch. Comment
  UC24109  Hydrophyllum occidentale State Survey 1800-1 1176 Contra Costa Mt. Diablo summit; Mt. Diablo Comment
  CAS-BOT-BC401301  Hypericum scouleri L. R. Abrams 1910-10-8 4347 Contra Costa Mt Diablo 914 Comment
  RSA31351  Hypochaeris glabra Joseph A. Ewan 1936-5-24 9692 Contra Costa W slope Bald Peak, head Wildcat Creek. Comment
  UC691451  Hypochaeris glabra Mary L. Bowerman 1933-5-8 2035 Contra Costa Comment
  UC1304178  Iris douglasiana Leo Brewer 1965-5-4 Contra Costa ridge w Siesta Valley (w-facing side of ridge, exposed to fog from Golden Gate, on county line between Contra Costa and Alameda counties) 441 Comment
  UC2029193  Iris pseudacorus Barbara Ertter 2000-7-16 17381 Contra Costa Diablo Foothills Regional Park, riparian strip along Pine Creek between Castle Rock Regional Recreation Area Comment
  CAS-BOT-BC324752  Iva axillaris Evelina Cannon 1896-5-22 s.n. Contra Costa Giant Station Comment
  CDA8051  Iva axillaris R. DeBoer 1960-1-19 Contra Costa Toll Gate House, San Rafael Bridge, Richmond. 0 Comment
  CAS-BOT-BC324756  Iva axillaris G. Thomas Robbins 1958-7-19 3909 Contra Costa Just south of Castro Point, San Francisco Bay, Richmond Comment
  SEINET11261292  Jaumea carnosa Barbara Ertter, Elizabeth Neese 1988-10-15 7975 Contra Costa Salicornia marsh W of I-580 in El Cerrito, W side along Rydin Road N of Central Avenue.; 0 Comment
  UC2029107  Jaumea carnosa Barbara Ertter 1990-9-30 9657 Contra Costa Point Pinole Regional Shoreline on San Pablo Bay, north Richmond; SW corner of park. Comment
  CAS-BOT-BC101879  Juglans californica J. W. Congdon 1894-10-16 s.n. Contra Costa Ft. Mt. Diablo Comment
  SJSU6440  Juglans hindsii C. O. Dudley 1966-5-8 109 Contra Costa Reliez Valley, Briones Hills, N of Lafayette 152 Comment
  CDA15236  Juncus balticus G. F. Hrusa, D. Crowe 1998-5-8 14367 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg. Comment
  UC2028372  Juncus bufonius var. bufonius Barbara Ertter 1998-6-20 16234 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo. Alkali Pond at Wiget Lane entrance. Comment
  JEPS111070  Juncus bufonius var. bufonius Lee Echols 2003-6-3 s.n. Contra Costa N of Lark Drive in central portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  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
  JEPS67091  Juncus bufonius var. occidentalis J. Burtt Davy 1895-4-7 948 Contra Costa Antioch Comment
  JEPS108161  Juncus capitatus David Gowen 2005-6-4 403 Contra Costa Lime Ridge Open Space. Northeast corner of the park, just west of water tank.Growing in hard-packed eroded sandy area. Comment
  CDA39196  Juncus effusus var. pacificus H. R. Van Brocklin 1962-5-21 s.n. Contra Costa H. Van Brocklin prop., 1895 Almond Ave., Walnut Creek. 0 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
  UC1619922  Juncus occidentalis Barbara Ertter, Brad Olson 1991-11-10 10887 Contra Costa behind yacht harbor (extreme w Richmond); Richmond, Point San Pablo Comment
  UC1795655  Juncus occidentalis Barbara Ertter, Gary Schoolcraft, Tony Morosco 1996-4-6 14566 Contra Costa West end Oyster Point Rd in Mt Diablo State Park, moist meadow just east of junction. Comment
  UC2013049  Juncus occidentalis Barbara Ertter with Lisa Schultheis 1996-9-2 15274 Contra Costa South side Mount Diablo, short distance down trail to Oyster point from Blackhawk Ridge road junction. Comment
  UC2028532  Juncus occidentalis Barbara Ertter 1998-5-3 16035 Contra Costa Above SW of fork of Pine Creek at southwest base of Mount Diablo. Comment
  UCD141649  Juncus occidentalis M. Wiesendanger 1926-5-1 1468 Contra Costa near Richmond. Comment
  UC691913  Juncus patens Mary L. Bowerman 1933-9-9 2436 Contra Costa Frog Pond Mount Diablo Comment
  HSC14067  Juncus phaeocephalus Leo Koch 1940-6-5 1004 Contra Costa Near highway, 2 mi. S of San Rafael ferry dock 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
  UC521770  Juncus xiphioides Joseph Andorfer Ewan 1933-10-15 8019 Contra Costa sw slope Mt. Diablo Comment
  UC727702  Juniperus californica Milo S. Baker 1946-1-1 11255 Contra Costa ca halfway to summit Mt. Diablo (near roadside at parking place) Comment
  UCD133737  Juniperus californica M. Wiesendanger 1926-6-1 1531 Contra Costa Mt. Diablo. Comment
  UCR168453  Juniperus californica Joseph A. Ewan 1933-10-15 8038 Contra Costa Coast Range, Mount Diablo, southwest slope 1067 Comment
  NY21017  Juniperus californica L. S. Rose 1934-2-28 34043 Contra Costa W slope of Mt Diablo Comment
  JEPS11127  Keckiella corymbosa W. L. Jepson 1920-8-12 9073 Contra Costa very summit Mt. Diablo Comment
  UC1050315  Kolkwitzia amabilis N. Floy Bracelin 1943-7-4 1584 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC499189  Kopsiopsis strobilacea D. E. Breedlove 1970-1-21 17141 Contra Costa Canyon above Moraga Comment
  CAS-BOT-BC340425  Lactuca saligna John Thomas Howell 1932-10-16 10819 Contra Costa Near San Ramon Comment
  UC691779  Lactuca serriola Mary L. Bowerman 1933-9-3 2420 Contra Costa spring ne Meridian-North saddle (below North Peak ridge); Mount Diablo 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
  UC2029174  Lactuca virosa Barbara Ertter 2000-7-29 17443 Contra Costa Donner Basin on north side of Mount Diablo, Falls Trail at east fork of Donner Creek (between main fork and Wild Oat Canyon), trickle of surface water. Comment
  CAS-BOT-BC341479  Lagophylla ramosissima R. Bacigalupi 1922-9-24 s.n. Contra Costa Fields between Clayton and Mitchell Canyon Comment
  UC1818897  Lagophylla ramosissima Barbara Ertter, Mary Bowerman et al. 1995-5-7 14062 Contra Costa Three Springs Trail on NE side of Mount Diablo SE of Clayton, small serpentine patch at road junction Comment
  JEPS99544  Lamium amplexicaule Mary Bowerman 1991-4-13 Contra Costa Mount Diablo. Frog Pond fire road between Sloan Rd. (Curry Canyon Rd.) and Sheepherder Spring & Pond. Comment
  CAS-BOT-BC337978  Lasthenia californica Volney Rattan 1879-1-1 s.n. Contra Costa Antioch Comment
  JEPS6970  Lasthenia californica subsp. californica Peter Kamb 1950-3-18 1635 Contra Costa saddle between North Peak and South Peak; Mount Diablo 883 Comment
  UC1118939  Lasthenia californica subsp. californica C. M. Belshaw 1936-5-12 2111 Contra Costa 3.7 mi ene Tassajero; Mt. Diablo Quad., plot 31 Comment
  UC65033  Lasthenia californica subsp. californica H. M. Hall 1901-4-1 1767 b Contra Costa Mt. Diablo Region of San Francisco Bay (lower slopes) Comment
  UC194264  Lasthenia conjugens Edward Lee Greene 1887-4-16 Contra Costa Antioch Comment
  POM11966  Lasthenia ferrisiae Katherine Brandegee s.n. Contra Costa Byron Hot Springs. Comment
  UC1363770  Lasthenia ferrisiae Robert Ornduff 1958-4-23 4945 Contra Costa 0.9 mi e junction of Bixler Road and Highway 4 (n of Hwy 4, n of Byron) Comment
  CAS-BOT-BC353327  Lasthenia fremontii Niall McCarten; V. I. Dains 1986-1-1 107 Contra Costa In grassland, E of Byron Hot Springs Road. Comment
  CAS-BOT-BC353332  Lasthenia fremontii Peter H. Raven; H. L. Mason; et al. 1957-4-4 10587 Contra Costa Vernal flats 3 miles S of Byron. Comment
  RSA516575  Lasthenia fremontii R. C. Bacigalupi, G. Thomas Robbins 1956-3-26 5533 Contra Costa About 2.5 miles S of Byron, just S of S.P.R.R. crossing on road to Bethany. Near head of Italian Slough. 6 Comment
  UC2070484  Lasthenia glaberrima Barbara Ertter with Joanne Kerbavaz and Alan Whittemore 2003-6-11 18215 Contra Costa Turtle Rock Ponds on east side Pine Creek, below Diablo Ranch on west side Mount Diablo. Comment
  JEPS35366  Lasthenia glabrata subsp. glabrata W. L. Jepson 1923-4-22 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC352772  Lasthenia glabrata subsp. glabrata Brandegee No date on label s.n. Contra Costa Antioch Comment
  RSA666474  Lasthenia glabrata subsp. glabrata Barbara Ertter, Chris Thayer 1993-5-7 11705 Contra Costa Ca 0.5 mile N of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land E of Tilden Park. 457 Comment
  JEPS10186  Lasthenia gracilis W. L. Jepson 1925-4-26 10684 Contra Costa sw Mount Diablo; Black Hills Comment
  JEPS99509  Lasthenia microglossa Mary Bowerman 1979-4-10 Contra Costa Mount Diablo, Mitchell Canyon opposite upper end of old reservoir. Comment
  SD5689  Lasthenia microglossa K. Curran May 1884 Contra Costa Antioch. Comment
Read comments Mar 10 2008
  UC2028062  Lasthenia microglossa Barbara Ertter, Tony Morosco 1998-4-12 16012 Contra Costa Mount Olympia on north side of Mount Diablo. Comment
  CAS-BOT-BC366303  Lasthenia minor Alice Eastwood 1914-3-17 3830 Contra Costa Byron Springs Comment
  JEPS9811  Lasthenia minor Anna E. Ehlers 1920-4-18 557 Contra Costa near Mt. Diablo; Pine Canyon Comment
  JEPS25041  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
  RSA138191  Lathyrus jepsonii subsp. californicus Volney Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley. Comment
  JEPS64865  Lathyrus vestitus var. vestitus W. C. Blasdale 1897-5-1 Contra Costa Point Isabel Comment
  UC764798  Lathyrus vestitus var. vestitus R. F. Hoover 1938-2-21 2757 Contra Costa Point Richmond 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
  UCR265179  Lavatera cretica Barbara Ertter 1991-5-12 9813 Contra Costa Central Coast, Point Isabel Regional Shoreline in southwest corner of El Cerrito, on San Francisco Bay; along old railroad right-of-way between bay and Salicornia marsh. 4 Comment
  RSA666403  Lavatera cretica Barbara Ertter 1991-5-12 9813 Contra Costa Point Isabel Regional Shoreline in SW corner of El Cerrito, on San Francisco Bay. Comment
  UC761862  Layia chrysanthemoides R. F. Hoover 1939-4-25 4065 Contra Costa Richmond Hills Comment
  POM181462  Layia chrysanthemoides I. L. Wiggins 1930-4-17 4572 Contra Costa 1/4 mi. S. of Byron. Comment
  UC589705  Layia gaillardioides Douglas Horn 1938-4-24 61 Contra Costa w of Orinda 274 Comment
  UC691555  Layia gaillardioides Mary L. Bowerman 1933-4-22 1904 Contra Costa ridge w of upper end of Curry-Cave Point trail; Black Hills Comment
  UC89217  Layia gaillardioides K. Brandegee May 1884 Contra Costa Mt. Diablo Comment
  JEPS13502  Layia glandulosa Robert F. Hoover 1935-3-10 315 Contra Costa Antioch Comment
  JEPS68959  Layia glandulosa Edward Lee 1935-3-10 1291 Contra Costa e Antioch Comment
  UC30632  Layia glandulosa J. Burtt Davy 1895-4-7 878 Contra Costa Antioch Comment
  UC468861  Layia glandulosa W. C. Blasdale 1893-5-13 Contra Costa Antioch Comment
  RSA394722  Layia glandulosa subsp. glandulosa Annetta Carter 1933-4-23 300 Contra Costa Above the San Joaquin River, between Antioch Bridge and Antioch. Comment
  UC691546  Layia hieracioides Mary L. Bowerman 1933-5-18 2133 Contra Costa SW corner S5 R1S R1E Comment
  CAS-BOT-BC377909  Layia platyglossa J McMurphy 1909-5-22 s.n. Contra Costa Canyon South of Livermore Comment
  UC30667  Layia platyglossa R. C. Marsh 1900-4-5 Contra Costa Antioch Comment
  UC518017  Layia platyglossa Lewis S. Rose 1933-4-17 33093 Contra Costa Antioch Comment
  UC691489  Layia platyglossa Mary L. Bowerman 1933-5-10 2063 Contra Costa ridge below Indian Ceremonial Spring; Mount Diablo 914 Comment
  UC697162  Layia platyglossa Mary L. Bowerman 1931-4-19 737 Contra Costa ridge s Deer Flat (Mt. Diablo); Mt. Diablo 838 Comment
  UC697166  Layia platyglossa Mary L. Bowerman 1935-4-26 2916 Contra Costa ridge w of Indian Ceremonial Spring; Mount Diablo 1005 Comment
  POM301051  Layia platyglossa Mary L. Bowerman 1935-4-26 2916 Contra Costa Ridge W of Indian Ceremonial Spring: Rocky ridge with S exposure 1006 Comment
  POM230495  Layia platyglossa subsp. campestris Jens Clausen 1936-4-18 1174 Contra Costa Summit Mt. Diablo; trail to Devil's Pulpit. Comment
  POM361692  Layia platyglossa subsp. campestris H. de Forest 1930-4-6 s.n. Contra Costa S.E. of Mortonville. Small coal mine ravine. 244 Comment
  CAS-BOT-BC274327  Leersia oryzoides Malcom A. Nobs 1948-9-23 681 Contra Costa Rock Slough, 7 miles south of Kingston Comment
  CDA9564  Lemna gibba D. G. Kelch 2007-6-17 7 .463 Contra Costa Carquinez Strait; Fernandez Ranch, Muir Land Trust. Franklin Canyon. 0 Comment
  UC2027754  Lemna gibba Barbara Ertter 1996-11-24 15413 Contra Costa Southwest side of Mount Diablo, streamlet east of Macedo Ranch trailhead. Comment
  CDA31190  Lepechinia calycina D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  JEPS78825  Lepechinia calycina Edward Lee 1936-5-24 2166 Contra Costa 10 miles from Marsh Creek Road, Morgan Territory Comment
  UCD169966  Lepidium chalepense R. M. Case 2001-5-10 PDR-P 088777 Contra Costa On Solano Ave., Concord. Comment
  CAS-BOT-BC88866  Lepidium chalepense Barrett Anderson 1987-4-29 3478 Contra Costa Pinole Creek in Pinole Valley near Catro Ranch Road. Pinole dam site for EBMUD. 125 Comment
  UC2070552  Lepidium coronopus Barbara Ertter 2002-5-11 17839 Contra Costa Southwest base of Mount Diablo, base of Emmons Canyon fire road. Comment
  CHSC67909  Lepidium dictyotum James D. Jokerst; Barbara Ertter, Dave Magney 1989-4-5 3080 Contra Costa West and adjacent to Clifton Court Forebay, E of Bryon Hwy. and Italian Slough. 3 Comment
  CDA24905  Lepidium dictyotum var. acutidens Jim Jokerst 1989-3-29 3074 Contra Costa Byron Hot Springs area northeast of Livermore, adjacent to pipeline on terrace south of ephemeral creek. 0 Comment
  CHSC67910  Lepidium dictyotum var. acutidens James D. Jokerst 1989-3-29 3068 Contra Costa 0.25 mi S of Byron Hot Springs NE of Livermore. Comment
  UC518001  Lepidium dictyotum var. acutidens Lewis S. Rose 1933-3-29 33041 Contra Costa Nortonville Comment
  RSA66572  Lepidium dictyotum var. acutidens J. T. Howell 1933-3-29 10894 Contra Costa Nortonville Comment
  CAS-BOT-BC89716  Lepidium latifolium Walter Knight 1978-8-12 3231 Contra Costa Ca. 0.8 mile east of Point Pinole. Comment
  CAS-BOT-BC89717  Lepidium latifolium Walter Knight; Harry Reeves 1979-8-21 3411 Contra Costa East of reservoir. Contra Loma Regional Park, Antioch. 22 Comment
  POM172656  Lepidium latipes Chesnut, E. R. Drew 1889-4-16 s.n. Contra Costa Concord. Comment
  CAS-BOT-BC89889  Lepidium nitidum Alice Eastwood 1914-3-14 3766 a Contra Costa Byron Springs. Comment
  SBBG2518  Lepidium nitidum J. M. Tucker 1946-3-24 1380 Contra Costa hills between Nortonville and Somersville Comment
  UC1563902  Lepidium nitidum Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8123 Contra Costa ca 15 air mi sw Stockton (w and adjacent to Clifton Court Forebay, se Contra Costa Co.); se Contra Costa Co. Comment
  UC1585875  Lepidium nitidum var. oreganum Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8127 Contra Costa ca 15 air mi sw Stockton (w and adjacent to Clifton Court Forebay) Comment
  UC10608  Lepidium oxycarpum J. Burtt Davy 1898-4-8 4263 Contra Costa Danville Comment
  POM300972  Leptosiphon androsaceus Mary L. Bowerman 1933-4-15 1861 Contra Costa Second ridge southeast of Arroyo del Cerro Comment
  UC87925  Lessingia glandulifera K. Brandegee 1883-1 Contra Costa Antioch Comment
  JEPS79353  Lessingia pectinata var. tenuipes Edward Lee with Annetta Carter 1935-8-17 1621 Contra Costa Antioch Comment
  UC1287410  Lessingia pectinata var. tenuipes Willard Spence 1962-5-15 672 Contra Costa 0.2 mi e of entrance to Antioch Boat Ramp Comment
  JEPS43231  Lewisia rediviva W. L. Jepson 1921-5-22 9206 Contra Costa a few feet below summit on n side of Mt. Diablo Mt. Diablo 1173 Comment
  RSA59614  Lewisia rediviva Verne Grant, Alva Grant 1950-5-13 8895 Contra Costa Saddle between N & Meridian peaks, Mt. Diablo. Comment
  CDA39047  Leymus X multiflorus D. G. Kelch 2011-6-5 11 .576 Contra Costa Carquinez Strait; South of Crockett, south of Cummings Skyway. Comment
  JEPS481  Leymus X multiflorus W. L. Jepson 1937-7-2 18445 Contra Costa swale 1/2 mi w Crockett Comment
  SEINET257984 Image available Leymus X multiflorus M. Barkworth, D Amme 1989-6-15 5169 Contra Costa Bluffs back of beach just north of Castro Point Comment
  UC909772  Leymus X multiflorus Milo S. Baker 1950-5-20 12226 Contra Costa roadside between Martinez and Port Costa Comment
  CDA39657  Leymus X multiflorus Slate 2013-5-22 PDR# 1641699 Contra Costa Concord; Walnut Creek channel upstream of Willow Pass Rd. 0 Comment
  UCD92455  Leymus X multiflorus Beecher Crampton 1956-5-14 3424 Contra Costa 3.2 miles W of Martinez, on the road to Crockett. Above Suisun Bay. Comment
  CAS-BOT-BC272214  Leymus triticoides R. E. Frenkel 1964-9-19 848 Contra Costa On Morgan Territore Road, 0.2 mile south of summit 637 Comment
  UC1789153  Ligustrum Barbara Ertter, Joanne Kerbabaz and Jeff Greenhouse 2000-10-26 17547 Contra Costa Mount Diablo State Park, a single sterile young shrub at a permanent spring-fed pond (''Secret Pond'') in angle of Stage Road and lower Barbeque Road, sahded by Aesculus. Comment
  UC1055944  Lilaea scilloides Francia Chisaki, Peter Kamb, and S. Galen Smith 1951-4-14 1979 Contra Costa 7 mi n Walnut Creek (e of Highway 21, 0.2 mi s of intersection with Highway 4) Comment
  CDA9513  Lilaeopsis masonii D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .24 Contra Costa CA Delta; Along Clifton Court Near Clifton Court Forebay. Comment
  UC1949286  Limnanthes douglasii subsp. rosea Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 Contra Costa sink W and adjacent to Clifton Court Forebay, ca 15 airmiles SW of Stockton Comment
  CDA33337  Limnobium laevigatum Robin Breckenridge 2010-10-1 PDR# 5059100 Contra Costa North edge of Bradford Island. 0 Comment
  SBBG117351  Limonium californicum B. Crampton 1950-8-5 632 Contra Costa San Pablo Canal, NW of Richmond Comment
  UC1602386  Linanthus ambiguus Mary L. Bowerman 1934-3-18 2481 Contra Costa w of Russelman Park (on the edge of Donner Canyon); Mount Diablo, Donner Canyon 381 Comment
  UC880306  Linanthus androsaceus Lewis S. Rose 1940-4-30 40253 Contra Costa 8 mi se Clayton; Marsh Creek 30 Comment
  JEPS112006  Linanthus bicolor D. G. Kelch 2005-4-15 05 .131 Contra Costa Rodeo Creek East-West canyon feeding into Rodeo Creek 120 Comment
  JEPS58248  Linanthus bicolor Mary L. Bowerman 1931-3-29 625 Contra Costa n side, 500 ft from top Cave Point; Mount Diablo 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
  UC449794  Linanthus ciliatus Chesnut and Drew 1889-4-17 Contra Costa Sommersville Comment
  JEPS123317  Linanthus parviflorus David Gowen with Chris Thayer 2010-4-30 1090 Contra Costa North of Briones Reservoir. Rocky area on hill above Oursan Trail just west of its junction with Hampton Trail. Comment
  JEPS123332  Linanthus parviflorus David Gowen with Chris Thayer 2010-4-30 1090 Contra Costa North of Briones Reservoir. Rocky area on hill above Oursan Trail just west of its junction with Hampton Trail. Comment
  SEINET5557311  Lithophragma affine H. S. Gentry 1931-1 47 Contra Costa Collected near Buckle Point Mt. Diablo. 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
  CHSC107534  Lithophragma heterophyllum D. G. Kelch 2006-5-4 06 .124 Contra Costa Coast Range: Vaca Canyon, on North facing road cut/bank along Alhambra Valley Road. 162 Comment
  UC2029036  Lithophragma heterophyllum Barbara Ertter 2000-3-30 16906 Contra Costa North side of Mount Diablo, Mitchell Canyon Road west of base of switchbacks. 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
  UC32010  Logfia filaginoides Harley P. Chandler 1901-4-5 963 Contra Costa Mt. Diablo Comment
  UC34597  Logfia filaginoides J. P. Tracy 1900-3-24 618 A Contra Costa Point Richmond San Francisco Bay region, Point Richmond 15 Comment
  UC912261  Logfia filaginoides Lucile Mason 1934-4-8 Contra Costa Marsh Creek- Livermore Road; Curry Creek Comment
  UC2028310  Logfia filaginoides Barbara Ertter, Susan D'Alcamo 1998-6-12 16167 Contra Costa North Peak Trail from Devil's Elbow on SE side of Mount Diablo summit. Comment
  UC691200  Lolium multiflorum Mary L. Bowerman 1935-5-16 3003 Contra Costa Russelman Park Road at Gregory Ranch junction; Mount Diablo 289 Comment
  UC1948973  Lolium perenne William J. Ferlatte, L. Maynard Moe 1970-4-27 1248 Contra Costa San Francisco Bay: Red Rock Island Comment
  UCD66482  Lolium temulentum Beecher Crampton 1956-5-14 3408 Contra Costa Southern boundary of Mt. Diablo State Park. Comment
  SEINET13944355 Image available Lomatium caruifolium C. F. Baker 1904-1 2800 Contra Costa Byron Comment
  UC2027938  Lomatium caruifolium Barbara Ertter with Tony Morosco and other CNPS members 2001-5-6 17624 Contra Costa Northwest flank of Mount Diablo, Globe Lily Trail paralleling Mitchell Canyon Road. Comment
  UCD127623  Lomatium dasycarpum P. B. Kennedy 1925-4-26 s.n. Contra Costa Banks above road to Sycamore Canon, Mt. Diablo. Comment
  JEPS17127  Lomatium dasycarpum subsp. dasycarpum W. L. Jepson May 23-24 1891 14299 Contra Costa Mt. Diablo Comment
  UC691426  Lomatium macrocarpum Mary L. Bowerman 1935-4-17 2837 Contra Costa w. rd. 2 mi. from entrance Mt. Diablo (ridge w. of chaparral) 289 Comment
  UC2027801  Lomatium macrocarpum Barbara Ertter with Holly Forbes 1997-4-20 15558 Contra Costa North side of Mount Diablo, north end of Eagle Peak Ridge on Mitchell Rock Trail between Mitchell Rock and Twin Peaks. Comment
  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
  UC691480  Lonicera hispidula var. vacillans Mary L. Bowerman 1930-6-18 346 Contra Costa Dan Cook Canyon Mount Diablo Comment
  UCSB24470  Lonicera interrupta McMinn, Howard 1922-6-2 Contra Costa NE slope of Mt. Diablo Comment
  JEPS22791  Lonicera involucrata var. ledebourii Ira L. Wiggins 1930-4-18 4594 Contra Costa levee at e end Jersey Island Comment
  UC1005863  Lonicera korolkowii N. Floy Bracelin 1944-5-7 2688 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1051193  Lonicera thibetica N. Floy Bracelin 1944-6-11 2727 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  RSA45488  Lotus corniculatus J. C. Roos 1948-9-6 4023 Contra Costa San Joaquin St., Antioch. Comment
  RSA138287  Lotus heermannii Volney Rattan 1879 Contra Costa Antioch Comment
  UC1745430  Lotus humistratus Annetta M. Carter, Leo Bowerman 1935-6-1 878 Contra Costa Mt. Diablo. S-facing slope on W side of main peak. 975 Comment
  JEPS25107  Lotus scoparius G. Thomas Robbins 1959-4-12 3983 Contra Costa about 0.5 mi sw junction of Hoffmann Blvd. and S. 25th St. 6 Comment
  UC1300865  Lotus strigosus Helen K. Sharsmith 1963-4-7 5291 Contra Costa s of Antioch (near Oakley); San Francisco Bay Region 15 Comment
  UC692324  Lotus strigosus Mary L. Bowerman 1932-4-9 1329 Contra Costa Inner Black Hills, small ridge e of s spur on meridian Mount Diablo, Inner Black Hills Comment
  UC692264  Lotus wrangelianus Mary L. Bowerman 1931-4-4 639 Contra Costa 2 rd mi from Mount Diablo w entrance (= North Gate); Mount Diablo Comment
  CAS-BOT-BC478075  Ludwigia Walter Knight 1978-9-28 3277 Contra Costa Browns Island, Botany Cove Comment
  CAS-BOT-BC478118  Ludwigia Walter Knight 1978-10-11 3325 Contra Costa Browns Island, Point Emmet Comment
  UC727201  Lupinus A. A. Heller 1942-4-20 16428 Contra Costa Antioch just e of the Boat School Antioch High School (not far from the San Joaquin River); nor far from the San Joaquin River Comment
  UC1970563  Lupinus Donald G. Nelson 1937-4-24 516 Contra Costa in rolling hill country north of Byron; Marsh Creek Road Comment
  UC126957  Lupinus affinis A. V. Stubenranch 1892-5-9 Contra Costa Fish Ranch Road Comment
  CAS-BOT-BC201371  Lupinus albifrons var. albifrons A. A. Heller 1908-4-16 8887 Contra Costa Antioch 12 Comment
  JEPS112355  Lupinus albifrons var. albifrons Dean G. Kelch and Andrew G. Murdock 2004-3-12 04 .019 Contra Costa Pinole Valley, County: Contra Costa; Hillside and canyon above Wright Road. Off of Pinole Valley Road. Contra Coasta County, CA. Comment
  UC864974  Lupinus albifrons var. albifrons Lewis S. Rose 1935-5-16 35162 Contra Costa Mt. Diablo Comment
  UC864982  Lupinus albifrons var. albifrons Alice Eastwood 1915-5-30 Contra Costa Mt. Diablo Comment
  RSA697989  Lupinus albifrons var. albifrons J. Vlahos 1934-8-1 s.n. Contra Costa Contra Costa Hills Comment
  JEPS25126  Lupinus arboreus G. Thomas Robbins 1959-4-18 3995 Contra Costa near and n Pt. Richmond (above Western Drive, western slopes of the Potrero Hills, Richmond); Richmond, near and n of Pt. Richmond 7 Comment
  RSA760662  Lupinus arboreus William J. Ferlatte, L. Maynard Moe 1970-4-27 1262 Contra Costa San Francisco Bay, Red Rock Island. Comment
  UC1999842  Lupinus arboreus Charles M. Belshaw 1935-5-30 946 Contra Costa Island route about 15 miles north of Antioch Bridge Comment
  JEPS112414  Lupinus bicolor Dean G. Kelch and Andrew G. Murdock 2005-4-15 05 .146 Contra Costa Rodeo Creek; county: Contra Costa; EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump). Comment
  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
  RSA442325  Lupinus bicolor subsp. microphyllus H. de Forest 1930-4-12 14147 Contra Costa Coalinga Comment
  CAS-BOT-BC187857  Lupinus chamissonis John Thomas Howell 1926-12-27 2272 Contra Costa 1.5 miles S of Oakley Comment
  UCD107012  Lupinus chamissonis Beecher Crampton 1973-3-26 8907 Contra Costa 2 miles S.E. of Oakley. Comment
  UC692523  Lupinus formosus Mary L. Bowerman 1931-10-5 1055 Contra Costa Marsh Creek at Curry Canyon Mount Diablo; , Marsh Creek at Curry Canyon 231 Comment
  UCD107762  Lupinus formosus P. B. Kennedy 1916-5-11 12 Contra Costa Grand View Terrace; Richmond District. Comment
  UC2050234  Lupinus formosus var. formosus Dean G. Kelch and Andrew G. Murdock 2004-5-28 287 Contra Costa Pinole Peak; County: Contra Costa. Comment
  RSA0064357  Lupinus latifolius Daisie Huang 2006-7-18 06071805 Contra Costa Ppinehurst Road above Moraga Road. 156 Comment
  JEPS112364  Lupinus latifolius var. latifolius Dean G. Kelch and Andrew G. Murdock 2004-4-30 256 Contra Costa Vaca Canyon; County: Contra Costa; On steep south slope along road. Comment
  UC163954  Lupinus microcarpus var. densiflorus Miss H. A. Walker 1911-7-8 2526 Contra Costa near Point Isabel (e shore of San Francisco Bay); , near Point Isabel Comment
  UC201013  Lupinus microcarpus var. densiflorus Katharine Brandegee 1918-6-16 Contra Costa near Virgorit Powder Works; near Vigorit Powder Works 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
  JEPS100117  Lupinus microcarpus var. microcarpus G. Smick 2003-5-30 GAS 198 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site 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
  UC201027  Lupinus microcarpus var. microcarpus Katharine Brandegee June 1918 Contra Costa Richmond Annex Comment
  UC201037  Lupinus microcarpus var. microcarpus Katharine Brandegee 1918-6-19 Contra Costa Richmond Annex , base of a rocky hill (El Dorado St.) Comment
  UC692572  Lupinus microcarpus var. microcarpus Mary L. Bowerman 1931-4-4 657 Contra Costa North Road 4.5 mi from North Gate Mount Diablo (bank above road); Mount Diablo Comment
  UC2028120  Lupinus nanus Barbara Ertter with Richard K. Brummitt 1998-5-6 16089 Contra Costa Lower Donner Canyon Road on north base of Mount Diablo, ca 1/2 miles south of Donner cabin site. Comment
  JEPS65413  Lupinus pachylobus E. L. Greene 1887-4-15 Contra Costa Briones Bills; Briones Hills Comment
  UC1129668  Lupinus pachylobus R. C. Wilson 1935-3-19 139 Contra Costa 2 mi nw Wall Pt.; Mt. Diablo Comment
  UC2031457  Lupinus pachylobus Barbara Ertter with David Gowen 2014-4-9 21709 Contra Costa Ridge running SE from Devil's Elbow on south side of Mount Diablo summit Comment
  UCD109334  Lupinus pachylobus A. A. Heller 1913-12-9 11150 Contra Costa hills eight miles north of Oroville near the western base of Table mountain. The type was collected by Greene on the 'Briones Hills, east of San Pablo Creek, Contra Costa County, California. Comment
  UCD109637  Lupinus succulentus Helen K. Sharsmith 1962-4-17 4937 Contra Costa Vicinity of Grizzly Peak, Berkeley Hills. 426 Comment
  CDA39247  Luzula comosa D. G. Kelch 2003-3-21 3 .051 Contra Costa Carquinez Strait Region; Martinez; West: Ozol Rock and Scenic Drive. Comment
  POM290430  Luzula comosa Lyman Benson 1931-3-18 2659 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 Comment
  UC2028483  Luzula comosa Barbara Ertter 1998-5-3 16040 Contra Costa SW fork of Pine Creek between Pine Ridge and Wall Point Ridge, southwest base of Mount Diablo Comment
  UC1619946  Lythrum californicum Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10695 Contra Costa Browns Island n. of Pittsburg (near confluence of Sacramento & San Joaquin rivers, opposite Pittsburg Marina, center of w. end of island); Browns Island Comment
  CDA29701  Lythrum hyssopifolia D. G. Kelch, D. A. Weinstein 2009-7-15 9 .495 Contra Costa Carquinez Strait; Point Pinole. Comment
  JEPS45963  Lythrum hyssopifolia W. L. Jepson 1922-7-9 9734 Contra Costa Richmond 6 Comment
  UC692629  Lythrum hyssopifolia Mary L. Bowerman 1932-8-27 1522 Contra Costa s of Turtle Rock (w of the willows, Mount Diablo); Mount Diablo Comment
  UC692686  Lythrum hyssopifolia Mary L. Bowerman 1933-8-2 2391 Contra Costa Mount Diablo, Sheep Camp Spring Sheep Camp Spring; Mount Diablo, Sheep Camp Spring Comment
  CDA9489  Lythrum tribracteatum D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .214 Contra Costa Byron Airport. Comment
  UC1789169  Lythrum tribracteatum Barbara Ertter 2005-8-18 18642 Contra Costa San Pablo Reservoir in East Bay Hills, east of San Pablo Dam Road between Richmond and Orinda; abundant on mudflats left by receding reservoir, mostly dried. Comment
Read comments May 27 2008
  JEPS100179  Madia elegans A. Langston 2003-7-9 AL 62 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC33221  Madia elegans Jos. Burtt Davy 1895-1 Contra Costa Moraga Pass Comment
  UCD102388  Madia elegans Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. North Peak Road to North Peak. 1000 Comment
  CAS-BOT-BC342983  Madia gracilis John Thomas Howell 1931-5-12 6484 Contra Costa North side of Mt. Diablo Comment
  UC1795769  Madia gracilis Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14677 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay; grassland/scrub at northeast corner of area. Comment
  CAS-BOT-BC324491  Madia radiata A. A. Heller 1938-4-9 15015 Contra Costa 3 miles southwest of Antioch Comment
  CAS-BOT-BC8141  Madia radiata Albert Kellogg s.n. Contra Costa Antioch Comment
  CDA23595  Madia sativa D. G. Kelch 2007-9-8 7 .568 Contra Costa Carquinez Strait; Pinole Valley Park. Comment
  CDA42364  Madia sativa D. G. Kelch, Vince Guise 2012-7-26 12 .239 Contra Costa Wildcat Canyon Park, Alvarado Unit. Comment
  CAS-BOT-BC343580  Madia sativa David D. Keck 1941-6-5 5310 Contra Costa Berkeley Hills, Fish Creek Road, 1/4 mi. W. of East Portal of Broadway Tunnel 335 Comment
  CAS-BOT-BC206334  Malacothamnus fremontii John Thomas Howell; T. H. Kearney 1950-7-5 26635 Contra Costa Nortonville. Comment
  UC1122042  Malacothamnus fremontii R. C. Wilson 1935-3-14 134 Contra Costa 2 mi up sycamore Cree; Mt. Diablo 381 Comment
  UC692618  Malacothamnus fremontii Mary L. Bowerman 1938-6-30 3696 Contra Costa below Blue Oak Flat; Mount Diablo 762 Comment
  UC692620  Malacothamnus fremontii Mary L. Bowerman 1933-5-21 2158 Contra Costa on ridge between main forks (head of Grape Spring gully) Mount Diablo, Sulplhur Spring Canyon Comment
  UC1280806  Malacothamnus hallii H. E. McMinn and E. Maino 1931-4-11 123 Contra Costa Mount Diablo Comment
  UC692693  Malacothamnus hallii Mary L. Bowerman 1932-9-24 1590 Contra Costa Ridge running w from Twin Peak; Mount Diablo 335 Comment
  CAS-BOT-BC204095  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
  CAS-BOT-BC345455  Malacothrix coulteri Kellogg; Bloomer 1869-5-1 s.n. Contra Costa Antioch Comment
  UC1613944  Malacothrix floccifera Charles M. Belshaw 1935-6-24 1024 Contra Costa Sobrante Hills Comment
  UC691449  Malacothrix floccifera Mary L. Bowerman 1935-6-1 3105 Contra Costa e of Mitchell-Pine divide (second small ridge, bottom of s face); Mount Diablo 975 Comment
  CDA37265  Malva neglecta D. G. Kelch 2011-3-31 11 .069 Contra Costa Carquinez Strait Region; Richmond, near Point Pinole Regional Park. Comment
  JEPS111547  Malva nicaeensis D. G. Kelch 2005-3-24 05 .65 Contra Costa Chevy's Hill Chevy's Hill. Edge of waste lot. 57 Comment
  UCD150879  Malva nicaeensis James A. Neilson Jr. 1972-11-2 3619 Contra Costa Walnut Creek drainage. Elevation estimated in Google Earth by label maker. 1 Comment
  RSA721201  Malva parviflora Barbara Ertter, Mary L. Bowerman 1995-6-11 14248 Contra Costa Shell Ridge Recreation Area southwest of Walnut Creek, at west base Mt.Diablo; near Indian Valley School entrance. 91 Comment
  UC2012999  Malva parviflora Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14923 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  CAS-BOT-BC8186  Malvastrum howellii John Thomas Howell 1931-5-12 6470 Contra Costa Nortonville Comment
  CHSC46936  Marah fabacea R. A. Schlising 1963-6-11 2623 Contra Costa Above the city of Berkeley, along Grizzly Peak Blvd in Oakland 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
  UC692642  Marah fabacea Mary L. Bowerman 1931-4-4 634 Contra Costa 2 mi by road North Gate; Mount Diablo 228 Comment
  CHSC46893  Marah oregana R. A. Schlising 1965-4-6 2780 Contra Costa Berkeley Hills. Comment
  CHSC46897  Marah oregana R. A. Schlising 1964-4-11 2699 Contra Costa Berkeley/Oakland Hills. Comment
  JEPS63286  Marrubium vulgare Mrs. E. L. Mossman 1931-3-20 74 Contra Costa e Richmond (Berkeley Hills); Berkeley Hills Comment
  UC691473  Marrubium vulgare Mary L. Bowerman 1933-8-2 2390 Contra Costa edge of Sheep Camp Spring (by west road) Mount Diablo; , edge of Sheep Camp Spring Comment
  UC89519  Matricaria discoidea T. S. Brandegee May 1890 Contra Costa Antioch Comment
  UCD164887  Matricaria discoidea Henry House 1995-4-30 1995- 8 Contra Costa About 1 km west of Walnut Blvd., ca. 0.5 km south of Marsh Creek Rd. 60 Comment
  CAS-BOT-BC348048  Matricaria discoidea R. E. Frenkel 1963-5-27 208 Contra Costa On Morgan Territory Road, 0.2 mile south of summit 637 Comment
  CAS-BOT-BC348050  Matricaria discoidea Katharine Brandegee No date on label s.n. Contra Costa Byron Spring Comment
  UC635484  Meconella oregana Herbert L. Mason 1927-4-16 3666 Contra Costa Wild Cat Canyon Berkeley Hills Comment
  JEPS112340  Medicago arabica Dean G. Kelch and Andrew G. Murdock 2004-5-2 04 .169 Contra Costa Crockett - Edwards Canyon; County: Contra Coasta; Edwards Canyon, Crockett, Contra Coasta County, CA. Comment
  UC1606303  Medicago arabica Barbara Ertter, Chris Thayer 1993-5-7 11699 Contra Costa on Wildcat Canyon Rd. 1/2 mi e Inspiration Point (e of Tilden Park); East Bay Municipal Utilities District land, Hopkins Spring 304 Comment
  CDA29123  Medicago polymorpha D. G. Kelch 2006-5-7 6 .151 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  JEPS65507  Medicago polymorpha W. L. Jepson 1923-10-4 10213 a Contra Costa Antioch Comment
  JEPS127048  Medicago polymorpha var. polymorpha Lowell Ahart, Josephine Guardino 2016-4-19 20762 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  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
  UCD86382  Melica bulbosa M. Wiesendanger 1926-6-1 1530 Contra Costa Mt. Diablo. Comment
  CAS-BOT-BC271218  Melica californica E. E. Stanford 1930-5-24 1516 Contra Costa Marsh Creek Canyon Comment
  UC771209  Melica californica W. S. Boyle 1942-4-10 1062 Contra Costa Ferry Point; overlooking San Francisco Bay 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
  UC2070611  Melica imperfecta Barbara Ertter with Dan Norris 2001-4-8 17595 Contra Costa Lime Ridge Open Space east of Walnut Creek, draw on north side of main peak (heavily impacted by motorcycle use). Comment
  CDA32524  Melica torreyana D. G. Kelch, Andrew Murdock 2003-3-21 3 .055 Contra Costa Carquinez Strait Region; Martinez; West: Ozol Rock and Scenic Drive. Comment
  JEPS75104  Melica torreyana W. L. Jepson 1918-6-5 7600 Contra Costa Donner Canyon; Mt. Diablo 533 Comment
  UC692470  Melica torreyana Mary L. Bowerman 1935-5-16 3013 Contra Costa e side North Peak, Mount Diablo (behind Gabriel-Hinks'); Mount Diablo 289 Comment
  POM300623  Melica torreyana Mary L. Bowerman 1935-5-18 3024 Contra Costa Mount Diablo, Northwest facing slope across the road from, and a little east of, the parking area. 1067 Comment
  UC634868  Melissa officinalis H. L. Mason 1925-9-17 2235 Contra Costa stream in Redwood Canyon Redwood Canyon Comment
  OBI13670  Melissa officinalis G. Thomas Robbins 1959-8-1 4115 Contra Costa Las Trampas Crk, about 1.5 mi SE of St. Marys College 183 Comment
  UC2027800  Mentha aquatica Barbara Ertter 1996-9-19 15292 Contra Costa Antioch Marina, edge of marsh near parking lot. Comment
  JEPS68927  Mentha spicata Edward Lee 1934-9-30 1221 Contra Costa edge of railroad just se of station Moraga Comment
  UC1619954  Mentha spicata Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10718 Contra Costa Browns Isl. n Pittsburg (near confluence of Sacramento & San Joaquin rivers, w.-most point opposite Pittsburg marina); Browns Isl. Comment
  UC1818941  Mentzelia dispersa Barbara Ertter, Mary Bowerman 1994-6-19 12849 a Contra Costa Mt. Diablo State Park east of Walnut Creek; lower Summit Parking Lot, roadside. Comment
  JEPS42778  Mentzelia micrantha W. L. Jepson 1919-6-8 8331 Contra Costa Mt. Diablo Comment
  RSA296862  Mentzelia micrantha W. L. Jepson 1919-6-8 83314 Contra Costa Mt. Diablo Comment
  UC692630  Mentzelia micrantha Mary L. Bowerman 1930-6-10 306 Contra Costa Mount Diablo, Meridian Peak summit Comment
  CDA23915  Mesembryanthemum nodiflorum D. G. Kelch 2006-7-14 6 .327 Contra Costa Carquinez Strait; Along Marine Vista Ave immmediately west of Pacheco Slough. East of Martinez. Comment
  JEPS111703  Micropus californicus var. californicus D. G. Kelch 2004-4-30 04 .155 Contra Costa Mt. Wanda - Martinez 90 Comment
  JEPS40631  Micropus californicus var. californicus W. L. Jepson 1922-5-23 9664 Contra Costa Mt. Diablo Comment
  UC1795729  Micropus californicus var. californicus Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14223 Contra Costa Mt. Diablo southeast of Walnut Creek, north-facing slope north of Curry Point, grassy semishade at edge of oak woodland. 518 Comment
  UC2028976  Micropus californicus var. californicus Barbara Ertter with Kevin Hintsa 2000-5-16 17023 Contra Costa Rock City area on SSW side of Mount Diablo, East Fossil Ridge Trail. Comment
  CAS-BOT-BC348649  Micropus californicus var. subvestitus John Thomas Howell 1930-4-22 4746 Contra Costa Wildcat Canyon Comment
  UC1795751  Microseris douglasii Barbara Ertter, Brad Olson, Diane Lake 1996-4-14 14585 Contra Costa Crest of Marsh Creek Road on north side of Mt. Diablo southeast of Clayton, south-facing roadcut opposite entrance to Three Springs Trail; annual grasses and Lotus. 274 Comment
  CAS-BOT-BC348886  Microseris douglasii subsp. douglasii Mary L. Bowerman 1933-5-8 2012 Contra Costa Mount Diablo. Fossil Ridge near crest, on north side by side road Comment
  JEPS25387  Microseris douglasii subsp. douglasii Rimo Bacigalupi with G. T. Robbins and Francia Chisaki 1959-4-14 7000 Contra Costa along Lone Tree Way 2 1/2 mi se Antioch (just e of Antioch Airport) 56 Comment
  UC691432  Microseris elegans Mary L. Bowerman 1933-3-25 1763 Contra Costa (Diablo Stock Farm) (Stone Valley) Canyon Mount Diablo Comment
  CAS-BOT-BC349169  Microseris elegans Brandegee No date on label s.n. Contra Costa Byron Springs Comment
  UC1818979  Microseris elegans Barbara Ertter, Dale Sanders, Dan Norris 1994-3-26 12336 Contra Costa Peyton Hill east of I-680 east of Martinez, south of Waterfront Road, west foot of hill near edge of marsh, openings in grassland. Comment
  JEPS36177  Microseris sylvatica W. L. Jepson 1918-6-3 7590 Contra Costa Donner Canyon Mt. Diablo 304 Comment
  UC2028127  Microseris sylvatica Barbara Ertter with Richard K. Brummitt 1998-5-6 16081 Contra Costa Base of Mitchell Rock Trail on north base of Mount Diablo. Comment
  UCSB5226  Microsteris gracilis Kamb, Peter 1950-3-18 Contra Costa Head of Pine Canyon; Mount Diablo 533 Comment
  JEPS10223  Mimulus aurantiacus var. aurantiacus W. L. Jepson 1922-5-23 9650 Contra Costa Mt. Diablo Comment
  JEPS10227  Mimulus aurantiacus var. aurantiacus W. L. Jepson 1918-6-5 7605 Contra Costa Donner Canyon Mt. Diablo Comment
  UCSB25546  Mimulus aurantiacus var. grandiflorus McMinn, H. 1945-4-1 Contra Costa Cultivated at Edmund's place, Danville Comment
  RSA408851  Mimulus constrictus Anstruther Davidson 1917-7-1 3279 Contra Costa Top Mt. Diablo. Comment
  UC27004  Mimulus nasutus J. Burtt Davy 1893-5-13 214 Contra Costa Claremont Canyon to Fish Ranch fide fieldbook Comment
  CHSC22998  Minuartia douglasii Robert A. Schlising 1962-4-26 2187 Contra Costa Coast Ranges. Mount Diablo, at Juniper Campground. Comment
  SJSU2617  Minuartia douglasii W. E. Ferguson 1942-4-25 Contra Costa E base of Mt Diablo 304 Comment
  UC1125779  Minuartia douglasii C. M. Belshaw 1936-5-8 2062 Contra Costa Mt. Diablo Mt. Diablo Quadrangle (se slope, Plot 5) Comment
  UC204205  Monardella villosa subsp. villosa A. D. E. Elmer Jul 1903 4658 Contra Costa Port Costa Comment
Read comments Apr 5 2007
  CAS-BOT-BC349617  Monolopia major James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  CHSC22932  Monolopia major Robert A. Schlising 1962-4-7 2143 Contra Costa Coast Ranges. S of Jct Empire Mine Road and Lone Tree Way; roadside. Comment
  UC691684  Monolopia major Mary L. Bowerman 1932-4-27 1365 Contra Costa ridge w Riggs Canyon (s-face of Oyster Ridge); Mount Diablo, Oyster Ridge Comment
  CAS-BOT-BC349615  Monolopia major Dr. A. Kellogg; W. G. W. Harford 1969-4-8 508 Contra Costa Antioch Comment
  POM181484  Monolopia major I. L. Wiggins 1930-4-17 4584 Contra Costa 1/4 mi. S. of Byron. Comment
  POM300988  Montia fontana subsp. variabilis Mary L. Bowerman 1939-3-31 3736 Contra Costa Spring in bend of road to Barbecue Terrace ( off S road). Comment
  CDA15240  Myoporum laetum G. F. Hrusa, D. Crowe 1998-5-8 14371 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Comment
  UC1101358  Myosurus Herbert L. Mason 1952-3-13 14200 A Contra Costa 3.3 mi s Byron Comment
  CAS-BOT-BC83295  Myosurus minimus Peter H. Raven; D. Stone; H. L. Mason; R. Ornduff; et al. 1957-4-4 10584 Contra Costa 3.0 miles south of Byron. Comment
  UC1738102  Myosurus minimus D. E. Stone 1957-4-4 70 B Contra Costa 1 mi S of Byron ( on State 4) Comment
  UC407383  Myosurus minimus Ira L. Wiggins 1930-4-17 4580 Contra Costa 1/4 mi s Byron Comment
  UC1738114  Myosurus minimus subsp. apus D. E. Stone 1955-8-29 8 -48 Contra Costa 3 mi S of Byron (on the road to Herdlyn) Comment
  POM166792  Myrica californica Jos. Burtt Davy 1898-3-24 4176 Contra Costa [Unspecified] Comment
  CDA19208  Myriophyllum spicatum Mangini, Whitlock 2001-4-3 PDR 041588 Contra Costa at SW corner of Contra Loma Park, East Bay Regional park, Antioch. 0 Comment
  UC2028567  Narcissus pseudonarcissus Barbara Ertter 1997-2-11 15451 Contra Costa North side of Mount Diablo, Donner Cabin site on Donner Canyon Road. Comment
  CDA28809  Nassella cernua D. G. Kelch, Jessica Kolman 2009-5-3 9 .315 Contra Costa Carquinez Strait; Crockett; on hill south of 5th St. with transmission tower on sandstone outcrop. Comment
  UC60164  Nassella lepida J. Burtt Davy 1900-3-24 6519 Contra Costa Port Richmond Comment
  UC691262  Nassella lepida Mary L. Bowerman 1932-4-27 1376 Contra Costa canyon w Riggs Canyon (e bank of stream, s face of ridge); Mount Diablo, Oyster Ridge 289 Comment
  JEPS116788  Nassella lepida David Gowen 2006-6-14 612 Contra Costa Morgan Territory Regional Park; At the NW end of Eagle Trail. Comment
  CDA1583  Nassella pulchra D. G. Kelch 2002-5-24 2 .021 Contra Costa Carquinez Strait; 5th St. Prairie, Crockett. Comment
  CDA29507  Nassella pulchra D. G. Kelch, Troy MacGregor 2009-5-1 9 .278 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  JEPS73768  Nassella pulchra R. F. Hoover 1936-3-19 807 Contra Costa Byron Hot Springs Comment
  POM295472  Nassella pulchra Lyman Benson 1935-3-16 6285 Contra Costa Mt. Diablo, Watershed: Walnut Creek; Mountain Range: Mt. Diablo. 305 Comment
  UC60254  Nassella pulchra J. Burtt Davy Apr 1897 Contra Costa Point Isabel Comment
  POM300685  Nassella pulchra Mary L. Bowerman 1933-5-9 2036 Contra Costa East of Pioneer Camp Comment
  JEPS105707  Navarretia heterandra David Gowen 2004-5-14 60 Contra Costa Mt. Diablo. North of the road at Curry Point, ca. 1780 ft. elev. Comment
  UC30206  Navarretia pubescens W. H. Brewer 1862-5-19 1113 Contra Costa n of Kirkers Pass Comment
  SEINET9296212  Navarretia squarrosa Unknown 1950-9-22 621 Contra Costa Contra Costa County Comment
  UCD48695  Navarretia squarrosa B. Crampton 1950-7-22 621 Contra Costa Common on a level field in hard packed soil near Santa Fe Railroad tracks, 1 mile north of Richmond, Contra Costa County, California. Comment
  JEPS104757  Nemophila John L. Morrison 1937-4-11 2098 Contra Costa Bald Peak, E slope 571 Comment
  CDA1155  Nemophila heterophylla D. G. Kelch, Andrew Murdock 2003-3-21 3 .056 Contra Costa Carquinez Strait Region; Martinez; West: Ozol Rock and Scenic Drive. Comment
  UC691705  Nemophila heterophylla Mary L. Bowerman 1933-4-9 1838 Contra Costa w fork , Donner Canyon, w fork (Donner Canyon; Mount Diablo) 243 Comment
  SEINET3156480  Nemophila insignis L. S. Rose 1941-3-13 41029 Contra Costa 3 miles W of Byron 30 Comment
  JEPS25353  Nemophila menziesii Rimo Bacigalupi with Paul C. Hutchinson and John Weiler 1959-3-19 6963 Contra Costa 2.4 mi w Byron (s-facing low hill along Camino Diablo, 0.3 mi e of junction with Vasco Road); along Camino Diablo, w of Byron 60 Comment
  UC480617  Nemophila menziesii Carl Meyer 1928-2-22 284 Contra Costa Mt. Diablo Comment
  CDA5536  Nerium oleander T. C. Fuller 1971-9-15 19928 Contra Costa Carquinez Strait; Old Highway 4, Alhambra Valley, ca. 4 miles west of Martinez. 0 Comment
  POM181437  Nicotiana glauca I. L. Wiggins 1930-4-18 4604 Contra Costa East end of Jersey Island. Comment
  UC407031  Nicotiana glauca Ira L. Wiggins 1930-4-18 4604 Contra Costa e end Jersey Island Comment
  CDA5796  Nicotiana tabacum R. DeBoer 1966-12-2 Contra Costa Golden Gate Fish Co., Point San Pablo, Richmond. 0 Comment
  UC1084399  Nuttallanthus texanus G. Thomas Robbins 1937-4-17 132 Contra Costa near Point Richmond Comment
  JEPS99491  Nuttallanthus texanus Mary Bowerman 1995-5-28 Contra Costa Mount Diablo, Knoll 1000' N of Wall Pt. Trail. Trail to Pine Pond from Wall Pt. fire road half encircles it on W side. Comment
  JEPS44838  Oemleria cerasiformis H. H. Haworth 1917-4-22 Contra Costa Orinda Park Comment
  RSA0025334  Oemleria cerasiformis James R. Shevock 2012-8-12 40657 Contra Costa Tilden Regional Park, East Bay Regional Park District. Along Grizzly Peak Trail about midway between the upper and lower trailheads. 448 Comment
  RSA610758  Oemleria cerasiformis Joseph A. Ewan 1935-3-2 9081 Contra Costa wildcat canyon. Comment
  CDA8361  Oenanthe sarmentosa D. G. Kelch 2004-4-3 4 .16 Contra Costa Carquinez Strait; Along Alhambra Valley Rd on moist creek bed. Comment
  CAS-BOT-BC171587  Oenothera deltoides subsp. howellii P. A. Munz 1949-6-1 14436 Contra Costa Sand dunes east of Antioch Comment
  CAS-BOT-BC171590  Oenothera deltoides subsp. howellii J. H. Thomas 1949-4-19 314 Contra Costa Antioch sand dunes. Comment
  RSA144914  Oenothera deltoides subsp. howellii Peter Rubtzoff 1954-9-14 1756 Contra Costa Sand dunes along lower San Joaquin River, east of Antioch. Comment
  RSA34666  Oenothera deltoides subsp. howellii P. A. Munz 1947-10-8 12201 Contra Costa Sand dunes east of Antioch 8 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
  UC27891  Orobanche bulbosa F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC502763  Orobanche bulbosa F. T. Bioletti 1894-5-13 s.n. Contra Costa Mount Diablo Comment
  UC27878  Orobanche fasciculata W. H. Brewer 1862-5-10 1064 Contra Costa Low Hills near Kirker's Pass. Comment
  CAS-BOT-BC499853  Orobanche fasciculata Paul F. Covel 1936-5-17 124 Contra Costa Mt. Diablo (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
  UC2027992  Orobanche uniflora Barbara Ertter with Tony Morosco 1998-4-12 16026 Contra Costa Connector trail on north side of Mount Olympia, north side of Mount Diablo. Comment
  UC27895  Orobanche uniflora subsp. occidentalis W. H. Brewer 1862-5-23 1152 Contra Costa SE of Mount Diablo. Comment
  POM15646  Orthocarpus attenuatus H. P. Chandler 1901-3-21 843 Contra Costa Concord. Comment
  RSA29779  Orthocarpus erianthus Joseph A. Ewan 1934-4-8 8762 Contra Costa Head of Hog Canyon, S slope Mt Diablo. 640 Comment
  SEINET12270163  Orthocarpus erianthus L. S. Rose 1932-1 32115 Contra Costa Nortonville Comment
  POM300995  Orthocarpus lithospermoides Mary L. Bowerman 1932-4-9 1324 Contra Costa Inner Black Hills, south spur on meridian. Comment
  POM15629  Orthocarpus pusillus H. P. Chandler 1901-4-5 945 Contra Costa Mt. Diablo Comment
  PASA163  Orthocarpus pusillus Frank W. Peirson 1926-4-10 Contra Costa Road from Pablo to Pinole Comment
  UC1555267  Osmorhiza berteroi R. C. Stebbins 1988-5-25 Contra Costa Memory and Packrat trails Tilden Park, Tilden Nature Area Comment
  UC1618306  Osmorhiza berteroi Barbara Ertter with Travis Columbus 1990-6-10 9108 Contra Costa near stream crossing on Spengler Creek ne Briones Peak (ne corner of park, w of Pleasant Hill); Briones Regional Park, Briones Hills 182 Comment
  RSA0068495  Osmorhiza berteroi Katie Gallagher, Nick Jensen 2014-4-26 179 Contra Costa Las Trampas Regional Wilderness. 365 Comment
  UC2062643  Osmorhiza berteroi Barbara Ertter with Mike Park, David Gowen, and Victoria Seidman 2004-4-26 18370 Contra Costa Curry Canyon between Alder Creek and Rhine Canyon, south side of Mount Diablo. Comment
  JEPS99556  Osmorhiza chilensis Mary L. Bowerman 1975-6-7 Contra Costa Mount Diablo, Big Spring Comment
  CDA4721  Oxalis corniculata D. G. Kelch, A. G. Murdock 2005-5-23 5 .375 Contra Costa Carquinez Strait Region; Crockett - Crolona Heights. 6th Street at Lillian Street, Crockett. Comment
  UC2029079  Oxalis corniculata Barbara Ertter 2000-7-16 17401 Contra Costa Lower Pine Creek in Diablo Foothills Regional Park. Comment
  UC2029047  Oxalis pes-caprae Barbara Ertter with Linda Vorobik 2000-1-9 16891 Contra Costa Las Trampas Regional Wilderness in East Bay Hills west of Danville, edge of woodland behind Eugene O'Neill house. Comment
  UC1051229  Pandorea jasminoides N. Floy Bracelin 1942-9-20 2301 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CDA33874  Panicum capillare Diveney, Denijs 2008-9-17 PDR# 1454350 Contra Costa Concord; Contra Costa Canal near Grayson Creek 0 Comment
  UC2012986  Panicum capillare Barbara Ertter with Lisa Schultheis 1996-9-2 15283 Contra Costa South side of Mount Diablo, South Gate Road not far inside park entrance near base of mountain. Comment
  JEPS103101  Papaver californicum Mary L. Bowerman 1978-5-14 Contra Costa E face of Eagle Peak, ravine toward Twin Peaks from Back Creek Mount Diablo Comment
  CHSC84547  Parapholis incurva John Dittes 2003-5-6 2003 -15 Contra Costa San Joaquin Valley; approximately 10.0 air-miles north of Livermore, 0.4 air-miles north of Vasco Road; Los Vaqueros Reservoir Watershed. 65 Comment
  UCD88468  Parapholis incurva A. A. Beetle 1942-4-1 3268 Contra Costa Brooks Island. San Francisco Bay. Comment
  UCD88472  Parapholis incurva Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  JEPS79630  Parvisedum pentandrum Edward Lee 1979-5-6 Contra Costa Mount Diablo, Lower Mitchell Canyon Lower Mitchell Canyon; Mount Diablo, Lower Mitchell Canyon Comment
  CDA2133  Paspalum dilatatum D. G. Kelch, A. G. Murdock 2003-8-13 3 .112 Contra Costa Carquinez Strait Region; Martinez Marsh. 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
  RSA0026146  Paspalum dilatatum Barbara Ertter 1998-6-20 16241 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Bob Pond at Old Borges Ranch. Comment
  CDA37338  Paspalum distichum D. G. Kelch 2010-10-31 10 .443 Contra Costa Valley north of Alhambra Valley Rd., south of Pinole Peak, east of Hercules. Comment
  UCD84177  Paspalum distichum Chuck Hughes 2009-10-2 136 Contra Costa Marsh Creek at County Jail on Marsh Creek Road. 179 Comment
  UC573135  Pectocarya penicillata H. L. Mason 1932-3-20 6845 Contra Costa Antioch sand hills Comment
  JEPS10363  Pedicularis densiflora W. L. Jepson 1922-5-23 9665 a Contra Costa Mount Diablo Comment
  JEPS10367  Pedicularis densiflora W. L. Jepson 1918-6-3 7584 Contra Costa Donner Canyon; Mount Diablo 609 Comment
  JEPS84382  Pedicularis densiflora Roxanne Bittman 1977-3-29 27 Contra Costa on n si9de of Mount Diablo Scenic Road about 10 mi from base of mountain Mount Diablo Scenic Road 762 Comment
  UC691617  Pedicularis densiflora Mary L. Bowerman 1931-2-28 526 Contra Costa Mount Diablo, near s road just below junction Mount Diablo Comment
  POM161363  Pediomelum californicum Rimo Bacigalupi 1926-4-30 1348 Contra Costa Summit of Mt Diablo. Comment
  JEPS112049  Pellaea andromedifolia D. G. Kelch 2004-4-25 04 .107 Contra Costa Martinez - West: Ozol Rock and Scenic Drive West Martinez on Scenic Dr. at Road Gate 28 Comment
  UC1874923  Pellaea andromedifolia Ruth Kirkpatrick 2003-3-1 1141 Contra Costa Mount Diablo 396 Comment
  UC903300  Pellaea andromedifolia Ethel Crum 1930-4-14 571 Contra Costa Mitchell Canyon; Mt Diablo Comment
  SEINET11713741  Pellaea andromedifolia M. T. Doutt 1930-1 90 Contra Costa Marsh Creek Comment
  CAS-BOT-BC67559  Pellaea mucronata Mary L. Bowerman 1933-3-25 1774 Contra Costa Mount Diablo - ridge north of Emmons Canyon. 335 Comment
  UC1618363  Pennisetum villosum Barbara Ertter, Brad Olson 1993-10-30 12290 Contra Costa w of railroad tracks n of mouth of Pinole Creek (along railroad track, San Pablo Regional Shoreline); San Pablo Regional Shoreline Comment
  SBBG26831  Penstemon centranthifolius L. S. Rose 1936-4-24 36158 Contra Costa 3 mi E of Antioch 15 Comment
  POM224482  Penstemon centranthifolius L. S. Rose 1936-4-24 36158 Contra Costa 3 mi E of Antioch. 15 Comment
  RSA412511  Penstemon centranthifolius H. de Forest 1930-4-6 s.n. Contra Costa Antioch. Banks of San Joaquin River. Comment
  SEINET12320780  Penstemon centranthifolius Unknown 1980-1 3879 Contra Costa Lime Ridge, N end, S of Ygnacio Valley Rd between Walnut Creek & Concord Comment
  SEINET12320781  Penstemon centranthifolius N. Havlik, Knight, W.; Knight, I. 1980-1 3878 Contra Costa about 1500 ft from Nortonville Pass intersection enroute to Laugher homestead, near old mining town Comment
  UC2028106  Penstemon centranthifolius Barbara Ertter with Christopher Baysdorfer 1998-5-10 16118 Contra Costa Lime Ridge Open Space northwest of Mount Diablo. Comment
  UC1051325  Penstemon hartwegii N. Floy Bracelin 1941-6-15 1402 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC831505  Pentachaeta alsinoides Lewis S. Rose 1940-4-30 40251 Contra Costa 5 mi e Clayton; Marsh Creek 60 Comment
  UC1795765  Pentachaeta alsinoides Barbara Ertter, Lisa Schultheis 1995-4-27 14006 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; northwest side of open grassy ridge at end of Arbolado Dr. 121 Comment
  CDA38511  Perideridia kelloggii D. G. Kelch 2004-7-9 4 .296 Contra Costa Carquinez Strait Region; Crockett - Carquinez Scenic Drive. East of Crockett West of Bull Valley SA. Comment
  UC691809  Perideridia oregana Mary L. Bowerman 1936-8-8 3525 Contra Costa Emmons Canyon Mount Diablo (w fork) Comment
  CAS-BOT-BC413498  Persicaria amphibia Walter Knight; Joanne Dean 1978-8-14 3176 Contra Costa Browns Island Comment
  UC2027897  Persicaria hydropiperoides Barbara Ertter 1996-9-19 15295 Contra Costa Antioch Marina, edge of delta. Comment
  RSA428314  Phacelia Alice Eastwood 1931-5-30 18617 Contra Costa Oak Spring 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
  UC107330  Phacelia breweri Katharine Curran May 1883 Contra Costa Mt. Diablo Comment
  UC24298  Phacelia breweri Harley P. Chandler 1901-4-5 969 Contra Costa Mt. Diablo Mt. Diablo (type locality) Comment
  UC880994  Phacelia breweri H. M. Evans 1921-4-30 Contra Costa Mt. Diablo Comment
  UC1228237  Phacelia californica Beecher Crampton 1950-4-22 533 Contra Costa along state hwy 4 in pass between Concord Valley and Pittsburg (steep hillside in roadcut) Comment
  UC2022567  Phacelia ciliata Lewis S. Rose 1932-3-15 3281 Contra Costa Byron Comment
  POM204460  Phacelia ciliata J. T. Howell 1933-3-29 10915 Contra Costa Near Pittsburg. Comment
  POM65595  Phacelia ciliata C. F. Baker 1903-4-26 2904 Contra Costa Byron Comment
  UC107374  Phacelia distans T. S. Brandegee May 1889 Contra Costa Antioch Comment
  JEPS2350  Phacelia divaricata Mary L. Bowerman 1935-4-26 2897 Contra Costa w Indian Ceremonial Spring; Mount Diablo 1021 Comment
  JEPS2169  Phacelia imbricata subsp. imbricata W. L. Jepson 1918-6-5 7611 Contra Costa North Peak Mount Diablo 944 Comment
  UC1228354  Phacelia imbricata subsp. imbricata L. R. Heckard 1956-7-17 805 Contra Costa Hampton Rd about 1 mi ne junction with Bear Creek road (n of Lafayette); Briones Hills 213 Comment
  JEPS1082  Phacelia nemoralis subsp. nemoralis Mary L. Bowerman 1933-6-3 2233 Contra Costa Mount Diablo, Ranson Point Trail Mount Diablo; , Ranson Point Trail 1158 Comment
  CAS-BOT-BC154325  Phacelia phacelioides Mary L. Bowerman 1935-5-8 2974 Contra Costa Mount Diablo. Muir Area 1036 Comment
  CAS-BOT-BC154332  Phacelia phacelioides Alice Eastwood 1915-5-30 4520 Contra Costa Near type locality. Mt. Diablo Comment
  CAS-BOT-BC154336  Phacelia phacelioides Mary L. Bowerman 1935-5-8 2974 Contra Costa Mount Diablo. Muir Area 1036 Comment
  JEPS1104  Phacelia phacelioides Mary L. Bowerman 1930-6-7 285 Contra Costa Meridian Peak summit Mount Diablo Comment
  UC24325  Phacelia phacelioides Edw. L. Greene 1890-6-20 Contra Costa Mt. Diablo Comment
  UC691332  Phacelia phacelioides Mary L. Bowerman 1932-4-16 1343 Contra Costa Eagle Point Mount Diablo (n side) 670 Comment
  UC2028313  Phacelia phacelioides Barbara Ertter, Susan D'Alcamo 1998-6-12 16163 Contra Costa North Peak Trail from Devil's Elbow on SE side of Mount Diablo summit. Comment
  JEPS99511  Phalaris aquatica Mary Bowerman 1994-6-4 Contra Costa Mount Diablo. Pine Canyon at E end of Castle Rock Park, perhaps just outside park. Comment
  UC1101560  Phalaris arundinacea Malcolm A. Nobs 1948-9-23 683 Contra Costa 7 mi s Kingston (Rock Slough); Rock Slough Comment
Read comments Oct 8 2012
  SEINET7296998 Image available Phalaris arundinacea Malcolm A. Nobs, S. Galen Smith 1949-1 945 Contra Costa Otto's Black Bass Resort, 4 miles north of Kingston. Comment
  JEPS70598  Phalaris lemmonii W. L. Jepson 1929-4-29 15188 Contra Costa in the railroad right-of-way near Byron Comment
  POM301848  Phalaris lemmonii Mary L. Bowerman 1934-4-21 2533 Contra Costa Muir Area Comment
  UC820506  Phalaris minor John Thomas Howell 1933-5-14 11234 Contra Costa St. Mary's College Comment
  CHSC79630  Phalaris paradoxa G. F. Hrusa; D. Crowe 1998-5-8 14401 Contra Costa Sacramento-San Joaquin River Delta. At E end of Dow Chemical property. 15 Comment
  JEPS127665  Phalaris paradoxa Barbara Ertter with David Gowen and Michael Park 2017-5-2 22809 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  SEINET8719258 Image available Phalaris paradoxa Laura Zeller 1965-1 85 Contra Costa Across from the University of California Botanical Garden with Lolium 76 Comment
  JEPS96244  Phoenix canariensis Barbara Ertter, Brad Olson 1993-10-30 12292 Contra Costa w of railroad tracks n of mouth of Pinole Creek (San Pablo Regional Shoreline); San Pablo Regional Shoreline Comment
  JEPS1830  Pholistoma auritum Mary L. Bowerman 1931-4-18 722 Contra Costa Sycamore Canyon 365 Comment
  CAS-BOT-BC222492  Pholistoma auritum var. auritum Mary L. Bowerman 1931-4-18 722 Contra Costa Mount Diablo. Sycamore Canyon 365 Comment
  CHSC59985  Pholistoma membranaceum J. M. Tucker 1981-4-25 4454 Contra Costa Antonio Souza Ranch southwest of Byron. Mt. Diablo Meridian. 309 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
  UC1078913  Phoradendron macrophyllum Job Kuijt 1958-1-12 1443 Contra Costa near Walnut Creek (Saranap); Saranap Comment
  CAS-BOT-BC141122  Phoradendron serotinum subsp. macrophyllum L. R. Abrams 1916-7-29 6307 Contra Costa Walnut Creek Comment
  CAS-BOT-BC141253  Phoradendron serotinum subsp. tomentosum Mary L. Bowerman 1930-9-9 450 Contra Costa Canyon running past Gabriel-Hinks. Mount Diablo Comment
  POM212436  Phoradendron villosum Joseph A. Ewan 1933-10-15 8040 Contra Costa SW slope of Mt Diablo. 1067 Comment
  CAS-BOT-BC260889  Phragmites australis A. D. E. Elmer 1903-7-1 4541 Contra Costa Martinez Comment
  CDA21558  Phyla nodiflora D. G. Kelch, Mike Park 2008-9-1 8 .304 Contra Costa Carquinez Strait; Lonetree Point. Rodeo Shoreline Park. Rodeo. 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
  JEPS46474  Pickeringia montana W. L. Jepson 1919-1-25 8212 Contra Costa Moraga Ridge Comment
  CAS-BOT-BC202275  Pickeringia montana var. montana John Thomas Howell 1925-10-11 1506 Contra Costa NW. end of Moraga Ridge, Oakland Hills Comment
  CAS-BOT-BC202277  Pickeringia montana var. montana W. W. Carruth 1891-5-1 s.n. Contra Costa Moraga Valley Comment
  CAS-BOT-BC76965  Pilularia americana Lewis S. Rose 1940-4-30 40259 Contra Costa 4 mi. S of Antioch 30 Comment
  CAS-BOT-BC78543  Pinus coulteri J. W. Congdon 1894-10-16 s.n. Contra Costa Mt. Diablo Comment
  JEPS46807  Pinus coulteri T. H. Goodspeed 1909-1-1 Contra Costa near Clayton (Mt. Diablo); Mt. Diablo Comment
  UC1051353  Pinus coulteri N. Floy Bracelin 1941-12-29 1835 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  UC40358  Pinus coulteri J. G. Lemmon Contra Costa Mitchell Canyon Mt. Diablo Comment
  UC691927  Pinus coulteri Mary L. Bowerman 1931-3-8 565 Contra Costa above Mitchell Rock; Mount Diablo Comment
  UC2028031  Pinus halepensis Barbara Ertter 1997-9-7 15800 Contra Costa North side Mount Diablo, Falls Trail in Donner Canyon. Comment
  UC2028647  Pinus halepensis Barbara Ertter 2001-3-18 17564 Contra Costa Shell Ridge Open Space SW of Walnut Creek, around Muir Reservoir tank at north end of main ridge Comment
  UC806729  Pinus pinaster Robert E. Burton Contra Costa near Valle Vista (south of Moraga) (n of Redwood road near creek) Comment
  JEPS111991  Pinus pinea D. G. Kelch 2005-1-21 05 .7 Contra Costa Crockett Collected along railroad tracks in West Valona across from the decommissioned sewage treatment plant 15 Comment
  CAS-BOT-BC72778  Pinus sabiniana Le Roy Abrams 1910-10-8 4350 Contra Costa Mt. Diablo 853 Comment
  JEPS46902  Pinus sabiniana W. L. Jepson 1907-4-26 2649 Contra Costa Mt. Diablo Comment
Read comments Aug 21 2014
  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
  RSA0029766  Piptatherum miliaceum Barbara Ertter, CNPS 1990-11-11 9709 Contra Costa Carquinez Straits Regional Park east of Crockett, near abandoned settlement near Port Costa. 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
  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
  JEPS68955  Plagiobothrys acanthocarpus Edward Lee 1935-3-10 1287 Contra Costa Kirker Pass, Donovan Road, w watershed of Kirker Creek Kirker Pass; , Donovan Road Comment
  UC1618199  Plagiobothrys acanthocarpus Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8133 Contra Costa ca. 15 air mi. s.w. Stockton (alkali sink w. and adjacent to Clifton Court Forebay); s.e. Contra Costa Co. Comment
  RSA666367  Plagiobothrys acanthocarpus Barbara Ertter 1989-4-5 8117 Contra Costa Alkali sink W and adjacent to Clifton Court Forebay, ca 15 air miles SW of Stockton 0 Comment
  UC2029043  Plagiobothrys acanthocarpus Barbara Ertter 2000-3-19 16894 Contra Costa Southwest flank of Mount Diablo, east of Pine Ridge, below Wall Point Road. Comment
  UC573067  Plagiobothrys bracteatus H. L. Mason 1928-4-15 4343 Contra Costa top Moraga Ridge Comment
  UC73948  Plagiobothrys bracteatus Harley P. Chandler 1901-3-22 878 Contra Costa Rodeo Canyon Comment
  UC1057488  Plagiobothrys canescens William Hirano 1949-3-29 Contra Costa Byron 50 Comment
  CHSC67894  Plagiobothrys humistratus James D. Jokerst 1989-3-28 3060 Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. Comment
  JEPS116917  Plagiobothrys humistratus David Gowen, Chris Thayer 2009-4-6 983 Contra Costa Cowell Ranch west of dam. 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
  SBBG96463  Plagiobothrys nothofulvus W. J. Dress 1951-3-17 3068 Contra Costa eastern slope of Berkeley Hills, just W of Orinda Comment
  UCSB39472  Plagiobothrys nothofulvus Fritzke, Sue 1980-3-29 Contra Costa 0.5 miles from the N end of Ball Rd.; in Shell Ridge Open Space Area; SE of the rock quarry 121 Comment
  UCSC000623  Plagiobothrys nothofulvus R. C. Wilson 1935-3-19 137 Contra Costa 2 mi N.W. of Wall Pt. Wall Pt. - Mt Diablo 335 Comment
  UC78186  Plagiobothrys stipitatus C. F. Baker 1903-4-27 2799 Contra Costa Byron Comment
  UCSB5650  Plagiobothrys stipitatus Robbins, G. 1937-4-25 Contra Costa Along roadside; 2 miles east of Alamo Comment
  OBI20604  Plagiobothrys stipitatus var. micranthus Robert F. Hoover 1967-4-28 10510 Contra Costa Byron Hot Springs Comment
  SD4240  Plagiobothrys tenellus T. S. Brandegee May 1888 Contra Costa Antioch Comment
  UC691336  Plagiobothrys tenellus Mary L. Bowerman 1933-5-8 2033 Contra Costa flat n Rock City Camp; Mount Diablo Comment
  UC79336  Plagiobothrys tenellus Katharine Brandegee April 1890 Contra Costa Antioch Comment
  UC191656  Plagiobothrys trachycarpus E. L. Greene 1888-3-28 Contra Costa Byron Springs Comment
  UC924232  Plagiobothrys trachycarpus H. S. Reed 1940-4-30 353 Contra Costa Marsh Creek Road Mount Diablo (Mount Diablo) 365 Comment
  JEPS111489  Plagiobothrys undulatus Nancy Hillyard 2004-5-18 886 Contra Costa Briones Park Comment
  JEPS116833  Plagiobothrys undulatus David Gowen 2007-5-8 706 Contra Costa Briones Regional Park, around Maricich Lagoon. Comment
  UC2029103  Plantago coronopus Barbara Ertter 1990-10-24 9684 Contra Costa Martinez Regional Shoreline on Carquinez Strait. Local near arch bridge. Comment
  JEPS7118  Plantago elongata W. L. Jepson May 23 1891-May 24 1891 Contra Costa Mt. Diablo Comment
  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
  UC1745837  Plantago elongata Annetta M. Carter 1935-3-10 752 Contra Costa Kirker Pass, Donovan Rd. to Pittsburg. Comment
  UC924236  Plantago elongata H. S. Reed 1939-4-1 217 Contra Costa n of Richmond (on edge of San Pablo Bay); San Pablo Bay Comment
  JEPS14540  Plantago erecta G. Thomas Robbins with Peter H. Raven 1956-4-28 3664 Contra Costa just s El Cerrito city limits (along Arlington Ave at Kenilworth Dr); Berkeley Hills 213 Comment
  JEPS6441  Plantago erecta W. L. Jepson 1922-5-11 9637 Contra Costa North Berkeley Hills Comment
  UC691529  Plantago erecta Mary L. Bowerman 1931-3-21 599 Contra Costa e end Fossil Ridge (just above the creek); Mount Diablo Comment
  UC75129  Plantago erecta unknown 1903-4-25 2803 Contra Costa Antioch Comment
  SBBG122787  Plantago erecta B. Ertter, J. Jokerst, D. Magney 1989-4-5 8141 Contra Costa sink W and adjacent to Clifton Court Forebay, ca. 15 air mi SW of Stockton Comment
  SD131987  Plantago erecta W. L. Jepson 1923-4-22 9872 Contra Costa On hilltops. Mt. Diablo. Comment
  JEPS111998  Plantago lanceolata A. G. Murdock 2004-5-28 271 Contra Costa Pinole Peak 205 Comment
  UC1818866  Plantago lanceolata Barbara Ertter, Kristin Ertter 1995-7-11 14475 Contra Costa Sulfur Spring on Pine Cr, Diblo Foothill Regional Park, marshy wet ground. 121 Comment
  UCD124602  Plantago lanceolata G. Thomas Robbins; S. Galen Smith 1958-6-2 3854 Contra Costa Along roadside just east of crossing of Hastings Slough on road between Port Chicago and Avon. 1 Comment
  CDA37397  Plantago major D. G. Kelch, Mike Perlmutter 2011-9-23 11 .761 Contra Costa Antioch. Dow Wetlands. Comment
  JEPS87217  Plantago major Lauramay T. Dempster 1991-6-15 Contra Costa Orinda; 15 El Toyonal Comment
  UC691530  Plantago major Mary L. Bowerman 1932-11-11 1642 Contra Costa Lower Moses Rock Spring Mount Diablo Comment
  UCD124520  Plantago major Malcolm A. Nobs; S. Galen Smith 1949-7-8 947 Contra Costa Otto's Black Bass Resort, 4 miles N of Kingston. Comment
  JEPS78614  Plantago subnuda Walter Knight, L. R. Heckard, and Bert Johnson 1978-9-28 3298 Contra Costa Botany Cove, Browns Island Comment
  UC11981  Platanus racemosa F. W. Koch Aug. 1895 Contra Costa Wildcat Creek Comment
  UC1328152  Platystemon californicus Olive Dyer April 1938 424 Contra Costa San Pablo Ridge Wildcat Canyon (just over on Orinda side); , Wildcat Canyon Comment
  UC56196  Platystemon californicus H. M. Hall 1901-3-16 1654 Contra Costa Point Richmond; region of San Francisco Bay, Point Richmond Comment
  UC692173  Platystemon californicus Mary L. Bowerman 1935-3-24 2748 Contra Costa near crest of Treat Avenue (w of Cowell) Mount Diablo Comment
  UC2027803  Plectritis ciliosa Barbara Ertter with Holly Forbes 1997-4-20 15556 Contra Costa North base of Mount Diablo, trail to Back Creek from Mitchell Canyon trailhead. Comment
  JEPS5147  Plectritis ciliosa subsp. ciliosa Mary L. Bowerman 1933-4-9 1835 Contra Costa Mount Diablo, w fork of Donner Canyon Donner Canyon; Mount Diablo, Donner Canyon 243 Comment
  OBI22108  Pleuropogon californicus Peter H. Raven, G. Thomas Robbins 1956-4-28 9042 Contra Costa Just E of jctn to Martinez along State hwy 4 Comment
  CAS-BOT-BC260945  Pleuropogon californicus var. californicus Ynes Mexia 1929-4-21 2388 Contra Costa Junction of Franklin Canyon Comment
  SEINET199818 Image available Pleuropogon californicus var. californicus P. H. Raven, GT Robbins 1956-4-28 9042 Contra Costa Just east of junction to Martinez along state highway 4. Comment
  CAS-BOT-BC260947  Pleuropogon californicus var. californicus Peter Kamb; Francia Chisaki; Galen Smith 1951-4-14 1978 Contra Costa Margins of small pond 0.2 miles south of junction of Highways 4 and 21, 7 miles north of Walnut Creek Comment
  JEPS111733  Pluchea odorata var. odorata D. G. Kelch 2004-9-2 04 .334 Contra Costa Pacheco Marsh east of Martinez and I-680 and east of lone tree Marsh 5 Comment
  UC1618403  Pluchea odorata var. odorata Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10869 Contra Costa just w. Antioch marina (along levee at water's edge, accessed from marina, Dow Wetlands Preserve); Dow Wetlands Preserve Comment
  UC691192  Poa annua Mary L. Bowerman 1933-3-25 1764 Contra Costa off Stone Valley Emmons Canyon; Mt. Diablo 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
  UCD91129  Poa howellii P. B. Kennedy 1916-1 s.n. Contra Costa Pinehurst. Comment
  CAS-BOT-BC246645  Poa howellii Peter H. Raven; H. L. Mason; R. Ornduff; et al 1957-4-11 10622 Contra Costa Curry Canyon, 4.0 miles s. of Recreation Ground Comment
  POM300627  Poa howellii Mary L. Bowerman 1933-4-22 1897 Contra Costa Inner Black Hills just west of Cave Point Comment
  JEPS71285  Poa secunda W. L. Jepson 1925-4-26 10687 Contra Costa Black Hills Mt Diablo Comment
  POM301025  Poa secunda Mary L. Bowerman 1933-5-8 2020 Contra Costa Fossil Ridge near crest, on north side by side road, Mount Diablo Comment
  CAS-BOT-BC236391  Poa secunda subsp. secunda A. A. Beetle 1941-3-23 1713 Contra Costa 1 mile E of St. Mary's College 182 Comment
  UC768489  Poa secunda subsp. secunda R. F. Hoover 1941-4-11 4834 Contra Costa Marsh Creek Canyon 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
  CDA37404  Polygonum argyrocoleon D. G. Kelch, Mike Perlmutter 2011-9-23 11 .759 Contra Costa Entry to Discovery Bay. Comment
  UCD150900  Polygonum argyrocoleon James A. Neilson Jr. 1972-10-22 3510 Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 0 Comment
  CDA9497  Polygonum aviculare D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .222 Contra Costa Byron Airport. Comment
  CAS-BOT-BC413971  Polygonum aviculare subsp. aviculare R. E. Frenkel 1964-2-5 349 Contra Costa On California Hwy. 21, Market Plaza Center, Alamo 79 Comment
  CDA22736  Polygonum aviculare subsp. buxiforme D. G. Kelch 2006-7-14 06 .328-B Contra Costa Carquinez Strait; Along Marine Vista Ave immmediately west of Pacheco Slough. East of Martinez. Comment
  CHSC97872  Polygonum aviculare subsp. buxiforme D. G. Kelch 2006-7-14 06 .328B Contra Costa Along Marine Vista Ave immediately west of Pacheco Slough. East of Martinez. 1 Comment
  JEPS95765  Polygonum ramosissimum Dianne Lake 1999-10-5 Contra Costa NW end of wetland at NE corner of Plymouth and Hillcrest, 1 block N of E 18th St. Antioch 3 Comment
  CDA1502  Polygonum ramosissimum var. ramosissimum D. G. Kelch 1996-10-17 s.n. Contra Costa Carquinez Strait; Pt Edith Marsh Comment
  JEPS41052  Polypodium calirhiza Rimo Bacigalupi and L. R. Heckard 1965-5-11 9077 Contra Costa At base of south-facing cliff on south side of Brooks Island (in San Francisco Bay southwest of Richmond). Comment
  JEPS79503  Polypodium calirhiza Edward Lee with C. Belshaw 1935-12-28 1706 Contra Costa Las Trampas Ridge Las Trampas Peak 441 Comment
  UC33886  Polypogon imberbis Jos. Burtt Davy 1900-6-7 6662 Contra Costa near Martinez; near Martinez Comment
Read comments Mar 22 2006
  UC1819024  Polypogon interruptus Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14634 Contra Costa Little Pine Creek at northwest foot of Mt. Diablo, along trail connecting North Gate Road to Castle Rock Road, Diablo Foothills Regional Park; along stream above stable, riparian vegetation. 91 Comment
  UCD37371  Polypogon interruptus Beecher Crampton 1959-9-3 5454 Contra Costa Contra Costa County, 2 miles north of city of Orinda, Bear Creek, East Bay Municipal Utilities District Project. Comment
  CAS-BOT-BC232584  Polypogon monspeliensis Walter Knight; Joanne Dean 1978-8-14 3190 Contra Costa Browns Island Comment
  JEPS100034  Polypogon monspeliensis A. Langston 2003-6-6 AL 36 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC50634  Polypogon monspeliensis Jos. Burtt Davy 1900-6-7 6672 Contra Costa near Martinez; near Martinez Comment
  UC2028386  Polypogon viridis Barbara Ertter 1998-6-20 16256 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, wet margin of Willow Spring Pond south of Ginder Gap Comment
  CAS-BOT-BC237471  Polypogon viridis Mary L. Bowerman 1936-8-17 3527 Contra Costa Mount Diablo. Sulphur Spring in Pine Canyon 137 Comment
  JEPS102910  Polystichum Barbara Ertter with Susan D'Alcamo 1998-6-12 16194 Contra Costa E end of Bald Ridge Tail W of Prospectors Gap Mount Diablo Comment
  JEPS100004  Populus fremontii A. Langston 2003-9-16 AL 91 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS112250  Populus fremontii D. G. Kelch 2004-4-26 04 .129-B Contra Costa Martinez - West: Ozol Rock and Scenic Drive Comment
  UC2027748  Populus fremontii subsp. fremontii Barbara Ertter 1996-11-24 15426 Contra Costa West side of Mount Diablo, Pine Pond along Stage Road in Pine Canyon. Comment
  CAS-BOT-BC267114  Potamogeton Walter Knight; L. R. Heckard; B. Johnson 1978-9-28 3273 Contra Costa Mouth of Crooked Slough, Browns Island Comment
  UC1606300  Potamogeton filiformis Barbara Ertter with Lynne Hosley and Sid Cowles 1992-6-7 11087 Contra Costa pond in quarry E of Round Top; Sibley Volcanic Regional Preserve, Oakland Hills Comment
  UC1795780  Potamogeton filiformis Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14644 Contra Costa North Gate Road at northwest base of Mount Diablo, ''Tick Pond'' west of road toward Castle Rock. Comment
  CAS-BOT-BC453906  Potamogeton pectinatus Walter Knight; Joanne Dean 1978-8-14 3155 Contra Costa Browns Is. Comment
  UC2029168  Potamogeton pectinatus Barbara Ertter 2000-7-16 17399 Contra Costa Lower Pine Creek in Diablo Foothills Regional Park. Comment
  NY436345  Potentilla frondosa E. L. Greene 1889-5-12 s.n. Contra Costa Comment
  UC766803  Proboscidea lutea R. F. Hoover 1937-8-31 2705 Contra Costa Pittsburg Comment
  JEPS99979  Prunus cerasifera G. Smick 2003-5-1 GAS 161 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CDA33067  Prunus dulcis D. G. Kelch 2010-10-5 10 .415 Contra Costa The Delta; Just east of Antioch bridge. Comment
  JEPS112076  Prunus dulcis D. G. Kelch 2003-3-21 03 .43 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  UC1784905  Prunus dulcis Barbara Ertter, Chris Thayer 1995-4-25 s. n. Contra Costa Sycamore Creek on SE foot of Mount Diablo Comment
  UC2012995  Prunus dulcis Barbara Ertter with Lisa Schultheis 1996-9-2 15277 Contra Costa South side Mount Diablo, east end of Blackhawk Ridge. Comment
  UC2027733  Prunus dulcis Barbara Ertter 1997-2-16 15460 Contra Costa Shell Ridge Open Space on west flank of Mount Diablo, exposed sandstone on main ridgeline. Comment
  JEPS44968  Prunus subcordata W. L. Jepson 1907-4-26 2648 c Contra Costa Mitchell Canyon Mt Diablo Comment
  UC691124  Prunus subcordata Mary L. Bowerman 1932-4-9 1334 Contra Costa Mount Diablo, Muir Area Mount Diablo; , Muir Area Comment
  CAS-BOT-BC151202  Prunus virginiana var. demissa Mary L. Bowerman 1933-5-21 2148 a Contra Costa Grape Spring (south from Curry Canyon), fifteen feet from surface of water - Mount Diablo Comment
  UCD35161  Pseudognaphalium beneolens Beecher Crampton 1950-7-29 624 Contra Costa Waste ground along Sante Fe R.R., 1 mile north of Richmond. Comment
  HSC5690  Pseudognaphalium luteoalbum Greg Bos 1963-4-10 71 Contra Costa Richmond, El Cerrito Hills. E and, W slope 76 Comment
  UC697187  Pseudognaphalium ramosissimum Mary L. Bowerman 1938-11-19 3735 Contra Costa on stream bank Mount Diablo, Mitchell Canyon 259 Comment
  CAS-BOT-BC357444  Pseudognaphalium ramosissimum John Thomas Howell 1925-11-7 1558 Contra Costa San Leandro Canyon, Oakland Hills Comment
  UC1584688  Pseudognaphalium thermale Jerry Powell Jul 14 1987-Jul 30 1987 1505 Contra Costa Point Molate Beach Point Molate Beach (chaparral and grassy meadow on bluffs above Bay edge) Comment
  UCD36027  Psilocarphus brevissimus Beecher Crampton 1949-6-10 472 Contra Costa city of Richmond. 16 Comment
  CHSC116615  Psilocarphus tenellus Lowell Ahart; Josephine Guardino 2016-4-19 20795 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the sides of the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  UC1819052  Psilocarphus tenellus Barbara Ertter, Chris Thayer 1995-4-25 13990 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Devil's Slide area of Sycamore Canyon, roadside thru chaparral zone. 304 Comment
  RSA0084070  Ptelea baldwinii subsp. crenulata L. S. Rose 1936-4-24 36147 Contra Costa Marsh Creek. 6 miles E of Clayton. 61 Comment
  CAS-BOT-BC148628  Ptelea crenulata Alice Eastwood 1915-5-30 4489 Contra Costa Mount Diablo Comment
  CAS-BOT-BC148630  Ptelea crenulata Alice Eastwood; John Thomas Howell 1936-4-19 2134 Contra Costa Nortonville Comment
  CAS-BOT-BC148647  Ptelea crenulata Volney Rattan 1887-5-22 s.n. Contra Costa Alhambra Val. 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
  JEPS40166  Ptelea crenulata H. L. Mason 1928-3-31 Contra Costa Mt. Diablo Comment
  JEPS40168  Ptelea crenulata H. L. Mason 1928-3-31 Contra Costa Mt. Diablo Comment
  SDSU9373  Ptelea crenulata D. F. Howe 1968-5-20 4517 Contra Costa 8.0 miles north of Alameda-Contra Costa Co. line on Morgan Territory Road. Comment
  UC17377  Ptelea crenulata Ivar Tidestrom Jun 1895 Contra Costa Edwards Canyon Comment
  UC571101  Ptelea crenulata H. L. Mason 1928-4-1 4270 Contra Costa hills n Mount Diablo (canyon back of Antioch hills) Comment
  CAS-BOT-BC148617  Ptelea crenulata Peter H. Raven; H. L. Mason; R. Ornduff 1957-4-11 10624 Contra Costa Curry Canyon, 4.0 miles s. of Recreation Ground Comment
  SD69961  Ptelea crenulata Darley Howe 1968-5-20 Contra Costa 8 miles north of Alameda-Contra Costa County line on Morgan Territory Road Comment
  JEPS57983  Pterostegia drymarioides W. L. Jepson 1923-4-22 9867 Contra Costa Mt. Diablo Comment
  UC2028108  Pyracantha fortuneana Barbara Ertter with Christopher Baysdorfer 1998-5-10 16115 Contra Costa Lime Ridge Open Space northwest of Mount Diablo. Comment
  UC2027947  Pyrus communis Barbara Ertter 1997-9-7 15792 Contra Costa North side Mount Diablo, cabin site on Donner Creek, in persisting orchard. Comment
  UCSC010010  Quercus Al Keuter 2014-5-23 00 097 A Contra Costa Along Reliez Valley Road, Lafayette 72 Comment
  CAS-BOT-BC104164  Quercus X morehus John Thomas Howell 1925-10-11 1503 Contra Costa Chaparral, Moraga Ridge, Oakland Hills Comment
  CDA35928  Quercus X morehus T. Young 2002-9-2 s.n. Contra Costa San Francisco Bay Area; Northern Orinda. 0 Comment
  CAS-BOT-BC45656  Quercus agrifolia John Thomas Howell 1950-7-5 26638 Contra Costa Nortonville Comment
  CDA33514  Quercus agrifolia D. G. Kelch, Troy McGregor 2010-10-3 10 .412 Contra Costa Carquinez Strait; Hornbeck trail, west of Martinez. Comment
  UC521668  Quercus agrifolia Joseph Andorfer Ewan 1933-10-15 8027 Contra Costa sw slope Mt. Diablo 1066 Comment
  UC691326  Quercus agrifolia Mary L. Bowerman 1935-4-22 2881 Contra Costa 2 mi from West road (= North Rd.) entrance (N. Gate) (on s side of road); Mount Diablo Comment
  UCD83548  Quercus agrifolia Alison McNally 2009-5-9 s. n. Contra Costa Antioch, southern shore of San Joaquin River, Antioch Dunes National Wildlife Refuge. Comment
  UC5471  Quercus agrifolia A. Resmond 1862-10-24 1474 Contra Costa near summit between Oakland and Walnut Creek Comment
  UC2042966  Quercus berberidifolia Barbara Ertter, Brad Olson, Diane Lake, Seth Adams, et al. 1994-9-11 13092 Contra Costa Chaparral Springs addition to Mt. Diablo State Park, north side of Marsh Creek Road at high point southeast of Clayton. Comment
  CDA31069  Quercus chrysolepis D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .232 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  SEINET14301648 Image available Quercus chrysolepis Robert A. Norris, John L. Inase 1981-1 4152 Contra Costa Near North Gate Rd., Mt Diablo; on dry SW-facing slope 716 Comment
  UC691275  Quercus chrysolepis Mary L. Bowerman 1930-10-25 496 Contra Costa Sloan Road Mount Diablo Comment
  UC847906  Quercus chrysolepis Lewis S. Rose 1941-5-15 41236 Contra Costa w slope Mt. Diablo Comment
  OBI42731  Quercus chrysolepis Cathy Peterson 1971-11-6 4 Contra Costa Mount Diablo, south side, approx 10 yds from Rock City entrance 610 Comment
  CAS-BOT-BC86643  Quercus douglasii Alice Eastwood 1923-5-4 11732 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC86649  Quercus douglasii Joseph Andorfer Ewan 1933-10-15 8028 Contra Costa Mt. Diablo 1066 Comment
  RSA573423  Quercus douglasii Joseph A. Ewan 1933-10-15 8028 Contra Costa Mount Diablo, south slope flat. 762 Comment
  RSA476581  Quercus douglasii H. de Forest 1930-4-13 s.n. Contra Costa Road through N end Diablo Range. 915 Comment
  UC691322  Quercus durata Mary L. Bowerman 1931-5-19 873 Contra Costa main e branch Donner Canyon; Mount Diablo 304 Comment
  UCD130592  Quercus garryana E. Dean; M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 654 Contra Costa California. Contra Costa County: Mount Diablo State park, Fossil Ridge, along fire road that begins at the parking lot southeast of Rock City and climbs onto Fossil Ridge in southeasterly direction, ca. 0.1 mile from Rock City, slightly downslope of road. 487 Comment
  CDA23635  Quercus kelloggii D. G. Kelch 2007-10-6 7 .629 Contra Costa Carquinez Strait; Fernandez Ranch. Muir Land Trust Property 4.5 km W of Rodeo. Comment
  OBI22995  Quercus kelloggii Cathy Peterson 1971-11-6 8 Contra Costa Mount Diablo, south side, approx 35 yds from Rock City entrance 610 Comment
  SEINET12034573  Quercus kelloggii M. T. Doutt 1930-1 83 Contra Costa Marsh Creek Comment
  UCD17142  Quercus parvula var. shrevei E. Dean; with B. Ertter, J. M. Tucker, and K. Chaney 2000-9-13 650 Contra Costa California. Contra Costa County: City of El Sobrante; El Sobrante Ridge, upslope of the terminus of Heavenly Ridge Rd., junction of Heavenly Ridge Trail and Manzanita Trail. 213 Comment
  UCD17417  Quercus parvula var. shrevei E. Dean; with B. Ertter, J. M. Tucker, and K. Chaney 2000-9-13 653 Contra Costa California. Contra Costa County: City of El Sobrante; El Sobrante Ridge, upslope of the terminus of Heavenly Ridge Rd., just south of junction of Heavenly Ridge Trail and Manzanita Trail, along Manzanita trail. 213 Comment
  JEPS104763  Quercus wislizeni John L. Morrison 1937-3-6 1973 Contra Costa S of Antioch Comment
  JEPS37967  Quercus wislizeni W. L. Jepson 1907-4-26 2647 Contra Costa Mt. Diablo Comment
  UC1748014  Quercus wislizeni E. Dean with B. Ertter, J. M. Tucker, K. Chaney 2000-9-10 651 Contra Costa El Sobrante Ridge, upslope of the terminus of Heavenly Ridge Rd., jct of Heavenly Ridge Trail and Manzanita Trail El Sobrante 213 Comment
  UC691291  Quercus wislizeni Mary L. Bowerman 1933-5-9 2052 Contra Costa Mountain House Canyon, n face Mount Diablo 670 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-BC104708  Quercus wislizeni Mary L. Bowerman 1933-9-23 2445 Contra Costa Mount Diablo. Ridge at W end of Meridian Flat; close to saddle by flat Comment
  CAS-BOT-BC104716  Quercus wislizeni H. E. McMinn s.n. Contra Costa Curry Canon [Canyon] Mt. Diablo Comment
  JEPS84502  Rafinesquia californica Jack Stratford 1981-5-6 Contra Costa Skyline Trail between Huckleberry Trail and Pinehurst Road; Huckleberry Botanic Regional Preserve Comment
  CAS-BOT-BC362441  Rafinesquia californica Mary L. Bowerman 1930-6-14 327 Contra Costa Mount Diablo. Meridian Peak little below summit Comment
  UC691953  Ranunculus aquatilis Mary L. Bowerman 1931-4-4 662 Contra Costa pool w Turtle Rock; Mount Diablo Comment
  UC9372  Ranunculus aquatilis Harley P. Chandler 1901-4-5 973 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC379225  Ranunculus aquatilis var. aquatilis Mary L. Bowerman; Walter Knight; Irja Knight 1968-6-4 2331 Contra Costa Mt. Diablo State Park, floating on Frog Pond and growing at water's edge in mud Comment
  POM270021  Ranunculus aquatilis var. capillaceus Mary L. Bowerman 1933-3-18 1754 Contra Costa Pool W of Turtle Rock (can be seen from top of rock) covering a considerable area of the bottom of the dried up pool Comment
  SBBG33501  Ranunculus aquatilis var. diffusus A. D. E. Elmer -May-1903 Contra Costa Mount Diablo Comment
  UC2028388  Ranunculus aquatilis var. diffusus Barbara Ertter with Tony Morosco 1998-7-11 16365 Contra Costa North base of Mount Diablo, small pond on north side of Bruce Lee Road east of Mitchell Canyon staging area Comment
  POM268432  Ranunculus californicus Lyman Benson 1935-3-16 6271 Contra Costa Mt. Diablo, Watershed: Walnut Creek; Mountain Range: Mt. Diablo. 915 Comment
  POM268460  Ranunculus canus Lyman Benson 1931-3-28 2654 Contra Costa Danville; Mt. Range: Mt. Diablo 122 Comment
  UC2028159  Ranunculus canus Barbara Ertter 1998-4-4 15952 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, south of Indian Valley School. Comment
  UC635097  Ranunculus canus var. canus H. L. Mason 1929-3-15 5055 Contra Costa on summit of hill east of Nortonville Comment
  UC692189  Ranunculus canus var. canus Mary L. Bowerman 1932-3-23 1127 Contra Costa East of Donner Creek; Mount Diablo Comment
  POM268694  Ranunculus canus var. laetus Jos. Burtt Davy 1895-4-7 925 Contra Costa Antioch Comment
  JEPS112061  Ranunculus hebecarpus D. G. Kelch 2005-5-1 05 .183 Contra Costa Crockett - Edwards Canyon 150 Comment
  UC692126  Ranunculus hebecarpus Mary L. Bowerman 1933-4-9 1832 Contra Costa Donner Canyon Mount Diablo (w fork, by stream (where large fork to e)) 243 Comment
  UC9444  Ranunculus hebecarpus H. N. Bolander 1866-1 Contra Costa Monte Diablo Comment
  POM269206  Ranunculus hebecarpus Mary L. Bowerman 1932-3-23 1130 Contra Costa Ridge E of Donner Canyon: At Saddle, in shade of Quercus Douglasii 274 Comment
  RSA14522  Ranunculus hebecarpus L. S. Rose 1934-3-21 34071 Contra Costa Marsh Creek, 6 miles E of Clayton. Comment
  UC9443  Ranunculus hebecarpus W. H. Brewer 1862-5-6 1049 Contra Costa near Camp 70; Monte Diablo Comment
  JEPS99975  Ranunculus muricatus G. Smick 2003-4-29 GAS 147 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1084395  Ranunculus occidentalis G. Thomas Robbins 1937-4-25 140 Contra Costa hillside near La Vista Comment
  RSA85297  Ranunculus occidentalis var. ultramontanus F. W. Peirson 1925-7-1 6171 Contra Costa Wood borders, State Line, Lake Tahoe Comment
Read comments Feb 10 2013
  RSA721368  Ranunculus sceleratus Barbara J. Ertter 1995-7-11 14485 Contra Costa W side of Mt. Diablo SW of Walnut Creek, dense growth at lower end of Pine Pond. 183 Comment
  UC2027737  Raphanus raphanistrum Barbara Ertter 1997-2-11 15454 Contra Costa North base of Mount Diablo, vacant lot on Regency Drive (en route to Donner Canyon trailhead). Comment
  CAS-BOT-BC74269  Raphanus sativus Walter Knight 1965-3-1 908 Contra Costa Antioch Dunes. Comment
  POM181430  Raphanus sativus I. L. Wiggins 1930-4-18 4610 Contra Costa Jersey Island. Comment
  CDA23628  Rhamnus alaternus D. G. Kelch 2007-9-8 7 .569 Contra Costa Carquinez Strait; Pinole Valley Park. Comment
Read comments Apr 29 2013
  UC1789165  Rhamnus alaternus Barbara Ertter with Tony Morosco 1998-10-18 16431 Contra Costa NW slope of Lime Ridge Open Space just S of Ygnacio Valley Road, bottom of swale at fenceline Comment
Read comments Apr 29 2013
  UC692615  Rhamnus californica Mary L. Bowerman 1930-8-31 451 a Contra Costa e of Sloan place (Sloan Road); Mount Diablo, Inner Black Hills Comment
  UC692584  Rhamnus crocea Mary L. Bowerman 1932-9-17 1579 Contra Costa Donner Canyon, w branch Mount Diablo Comment
  CAS-BOT-BC59894  Rhamnus ilicifolia A. D. E. Elmer 1903-5-1 4326 Contra Costa Mount Diablo. Comment
  CAS-BOT-BC59898  Rhamnus ilicifolia L. R. Abrams 1910-10-8 4352 Contra Costa Mt. Diablo. 1158 Comment
  UC692599  Rhamnus tomentella subsp. tomentella Mary L. Bowerman 1933-5-21 2152 Contra Costa s of Curry Canyon (Grapevine Spring gulley, slightly above the spring); Mount Diablo Comment
  CAS-BOT-BC200696  Rhus aromatica Mary L. Bowerman 1933-6-21 2328 Contra Costa Donner Canyon Comment
  UC692576  Rhus trilobata Mary L. Bowerman 1935-5-30 3092 Contra Costa Eagle Point Ridge; Mount Diablo 350 Comment
  JEPS77004 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
  POM274738  Ribes californicum Unspecified 1935-3-16 6268 Contra Costa Mt. Diablo, Walnut Creek watershed, Upper Sonora zone. Comment
  CDA25524  Ribes californicum var. californicum D. G. Kelch, A. G. Murdock 2003-2-7 3 .036 Contra Costa Carquinez Strait Region; Franklin Canyon. Comment
  CHSC22701  Ribes divaricatum Carol C. Getzinger 1964-4-26 51 Contra Costa Wildcat Canyon Road 1.3 miles from junction with Spruce Street and Grizzly Peak Boulevard. 152 Comment
  CAS-BOT-BC168919  Ribes malvaceum E. M. Zeile 1921-11-19 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC168923  Ribes malvaceum Alice Eastwood; John Thomas Howell 1936-4-19 2140 Contra Costa Nortonville Comment
  JEPS79410  Ribes malvaceum Edward Lee with Annetta Carter 1936-5-24 2168 Contra Costa 10 mi from Marsh Creek Road; Mt. Diablo, Morgan Territory Comment
  RSA0021636  Ribes malvaceum Alice Eastwood, J. T. Howell 1936-4-19 2140 Contra Costa Nortonville. Comment
  JEPS49205  Ribes menziesii W. L. Jepson 1923-6-10 9996 Contra Costa Upper Marsh Creek Mt. Diablo Comment
  UC691266  Ribes menziesii Charles Fakler 1944-8-4 3897 Contra Costa Juniper Camp area Mount Diablo Comment
  CAS-BOT-BC206015  Ribes menziesii Mary L. Bowerman 1931-4-19 739 Contra Costa Mount Diablo. Deer Flat Comment
  CAS-BOT-BC206017  Ribes menziesii John Thomas Howell 1980-4-10 53367 Contra Costa Morgan Territory east of Mt. Diablo Comment
  CAS-BOT-BC362966  Rigiopappus leptocladus M. K. Curran 1884-5-1 36 Contra Costa Antioch Comment
  UC697154  Rigiopappus leptocladus Mary L. Bowerman 1935-4-22 2890 Contra Costa ridge w Pioneer Road (w of Old Stage Road); Mount Diablo 853 Comment
  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
  UC24540  Romanzoffia californica H. N. Bolander 1866-1 6280 Contra Costa Mt. 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
  CAS-BOT-BC75017  Rorippa palustris Walter Knight; Rolf Bensler; Brian Atwater; J. Dean; Bryan Mortensen 1979-4-13 3363 Contra Costa Browns Island. Crooked Slough. Comment
  UC2062640  Rorippa palustris subsp. palustris Barbara Ertter with Jim Dunne, David Gowen, Lech Naumovich 2009-12-3 19799 Contra Costa Mudflats at upper (south) end of San Pablo Dam Reservoir northwest of Orinda. Comment
  CHSC116620  Rorippa palustris var. occidentalis Lowell Ahart; Josephine Guardino 2016-4-19 20771 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Below the high water line of Los Vaqueros Reservoir, 1.4 miles northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  JEPS127093  Rorippa palustris var. occidentalis Lowell Ahart, Josephine Guardino 2016-4-19 20771 Contra Costa 1.4 miles (air) northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Spring USGS 7.5' Quad. Comment
  JEPS112081  Rosa californica D. G. Kelch 2003-8-13 03 .123 Contra Costa Vaca Canyon 165 Comment
  CAS-BOT-BC147411  Rosa californica Mary L. Bowerman 1931-5-13 841 Contra Costa Pine Canyon one mile above the Sulphur Spring Comment
  JEPS45672  Rosa gymnocarpa W. L. Jepson 1924-12-6 10669 Contra Costa Pinehurst San Leandro Creek Comment
  OBI70554  Rosa gymnocarpa D. G. Kelch, D. A. Weinstein 2008-4-15 8 .046 Contra Costa Carquinez Strait: S Port Costa along Mckewen rd ( 137 Comment
  UCD113849  Rosa gymnocarpa Collector Unknown Date Unknown 61 Contra Costa Near top of ridge to W of Central Franklin Canyon. 228 Comment
  UC2027979  Rubus discolor Barbara Ertter, Mary Bowerman 1996-11-1 15393 Contra Costa North base of Mount Diablo, downstream from Mitchell Canyon parking lot. Comment
  CAS-BOT-BC158773  Rubus ursinus Walter Knight; Joanne Dean 1978-8-14 3167 Contra Costa Browns Island Comment
  UC2032842  Rubus ursinus Doran, Andrew Scott 2012-3-20 713 Contra Costa North east side of Brooks Island Comment
  CAS-BOT-BC421737  Rumex conglomeratus Irja Knight; W. Knight 1977-5-22 s.n. Contra Costa Antioch Dunes. Comment
  UCD164880  Rumex crispus Henry House 1995-5-20 1995- 14 Contra Costa Adjacent to Walnut Blvd., approximately 1.25 km south of Marsh Creek Road. 30 Comment
  CAS-BOT-BC421625  Rumex crispus Ira L. Wiggins 1930-4-18 4605 Contra Costa Jersey Island Comment
  CAS-BOT-BC421627  Rumex crispus Walter Knight; Joanne Dean 1978-8-14 3154 Contra Costa Browns Island. Comment
  CAS-BOT-BC433479  Rumex fueginus Walter Knight; Irja Knight 1980-8-26 3804 Contra Costa At Hercules Comment
  UC1585942  Rumex obtusifolius Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8122 Contra Costa ca 15 air mi sw Stockton (w and adjacent to Clifton Court Forebay); Clifton Court Forebay Comment
  CDA15232  Rumex salicifolius var. crassus G. F. Hrusa, D. Crowe 1998-5-8 14361 Contra Costa Sacramento Delta; E end of Dow Chemical property at Pittsburg. Comment
  CDA15273  Rumex salicifolius var. crassus G. F. Hrusa, D. Crowe, R. York 1998-7-17 14710 Contra Costa Sacramento Delta; E end of Dow Chemical property. Comment
  RSA0029279  Rumex salicifolius var. salicifolius Barbara J. Ertter, Tony Morosco 1996-7-27 15030 Contra Costa Mount Diablo State Park, Donner Creek ca. halfway between Regency Drive trailhead and old cabin site. 183 Comment
  CDA29768  Rupertia physodes D. G. Kelch, Troy MacGregor 2009-5-1 9 .267 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  JEPS100112  Rupertia physodes A. Langston 2003-6-12 AL 41 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1818938  Sagina apetala Barbara Ertter, Mary Bowerman et al. 1995-5-7 14056 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, road behind honses traversing north facing slope, mixed forest with much undergrowth. Comment
  UC2028160  Sagina apetala Barbara Ertter 1998-4-4 15948 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, SE of Indian Valley School. Comment
  UCD143634  Sagina procumbens Mack Osborne 1948-6-25 s.n. Contra Costa Danville. Comment
  SEINET11268191  Salicornia europaea Barbara Ertter 1990-9-30 9656 Contra Costa Point Pinole Regional Shoreline, edge of sparina marsh at edge of salicornia marsh on SW corner of park; edge of San Pablo Bay.; 0 Comment
  UC204976  Salicornia subterminalis Katharine Brandegee Contra Costa Byron Hot Springs Comment
  JEPS111806  Salicornia virginica D. G. Kelch 2003-8-13 03 .98 Contra Costa Martinez Marsh 0 Comment
  CAS-BOT-BC103027  Salix bonplandiana Walter Knight; R. Bensler; B. Atwataer; J. Dean; B. Mortensen 1979-4-13 3368 Contra Costa South Landing. Browns Island Comment
  CAS-BOT-BC129913  Salix bonplandiana J. Burtt Davy 1895-4-13 1005 Contra Costa Near Lafayette. Comment
  UC407392  Salix exigua var. hindsiana Ira L. Wiggins 1930-4-18 4587 Contra Costa levee banks Jersey Isl. Comment
  CDA9512  Salix gooddingii D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .239 Contra Costa CA Delta; Along Clifton Court Near Clifton Court Forebay. Comment
  POM181448  Salix gooddingii I. L. Wiggins 1930-4-18 4591 Contra Costa Jersey Island. Comment
  POM167733  Salix laevigata H. P. Chandler 1901-3-22 859 Contra Costa Pacheco. Comment
  UC437380  Salix laevigata J. Burtt Davy 1895-4-13 1005 Contra Costa near Lafayette Comment
  UC651296  Salix laevigata Ira L. Wiggins 1930-4-18 4603 Contra Costa levee banks Jersey Isl. Comment
  UC692052  Salix laevigata Mary L. Bowerman 1931-3-1 530 Contra Costa near w. entrance = N. Gate Mt. Diablo Comment
  JEPS75492  Salix lasiolepis P. F. Yorks 1975-12-17 502 Contra Costa n of Briones Reservoir (ca. 1 km s of Bear Creek Rd. on Hampton Rd.); Hampton Road Natural Reserve 170 Comment
  POM300608  Salix lasiolepis Mary L. Bowerman 1933-9-15 2441 Contra Costa Hunt Spring (S face Meridian Peak). Mt Diablo. 762 Comment
  UC692056  Salix lasiolepis Mary L. Bowerman 1931-2-22 519 Contra Costa Sycamore Canyon; mouth Comment
  UC692064  Salix lasiolepis Mary L. Bowerman 1932-8-27 1519 Contra Costa spring s Turtle Rock; Mount Diablo Comment
  CAS-BOT-BC129596  Salix lasiolepis var. lasiolepis Mary L. Bowerman 1933-3-25 1777 Contra Costa Emmons Canyon, back of Diablo Stock Farm, Stone Valley - Mount Diablo 274 Comment
  UC1607511  Salpichroa origanifolia Barbara Ertter 1991-5-12 9818 Contra Costa Point Isabel Regional Shoreline in SW corner of El Cerrito, on San Francisco Bay Comment
  CDA20234  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. Area a mix of S. australis and S. tragus. 7 Comment
  RSA739938  Salsola tragus P. Akers 2003-10-7 B- 107 Contra Costa Contra Costa water district, E edge of Discovery Bay on Hwy 4. 8 Comment
  UC32581  Salvia carduacea Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  JEPS62658  Salvia columbariae W. L. Jepson 1922-5-23 9661 Contra Costa Mt. Diablo San Francisco Bay (vicinity of San Francisco Bay) Comment
  UC634924  Salvia columbariae H. L. Mason 1929-3-29 5121 Contra Costa Mt. Diablo 762 Comment
  JEPS120273  Salvia leucophylla Barbara Ertter with David Gowen 2012-6-9 21026 Contra Costa southeast of junction of Big Springs Trail and Seaview Trail, southeastern Tilden Park in Berkeley Hills Comment
Read comments Mar 22 2018
  CAS-BOT-BC233288  Salvia mellifera Dr. A. Kellogg; W. G. W. Harford 1868-1-1 757 Contra Costa Diablo Comment
  CAS-BOT-BC233292  Salvia mellifera Alice Eastwood 1915-6-21 4736 Contra Costa San Leandro Comment
  JEPS112463  Salvia mellifera D. G. Kelch 2004-4-3 04 .55 Contra Costa Selby Road cut west of I-80 and Cummings Skyway junction 70 Comment
  RSA15471  Salvia mellifera Alice Eastwood, J. T. Howell 1936-4-19 s.n. Contra Costa Nortonville. Comment
  UC691515  Salvia mellifera Mary L. Bowerman 1932-3-6 1104 Contra Costa mouth of Sycamore Canyon; Mount Diablo Comment
  UC883961  Salvia mellifera Lewis S. Rose 1941-3-22 41057 Contra Costa w slope Mt. Diablo 609 Comment
  SEINET5570354  Salvia mellifera H. S. Gentry 1931-1 49 Contra Costa Collected near Buckle Point Mt. Diablo. Comment
  UCSB5807  Salvia mellifera Kamb, Peter; Chisaki, Francia 1950-3-18 Contra Costa Black Hills; S. of Mt. Diablo; on south road to Mt. Diablo; from Danville 365 Comment
  CAS-BOT-BC238632  Sambucus nigra subsp. caerulea Alice Eastwood 1915-5-30 4548 Contra Costa Mt. Diablo Comment
  UC1925899  Sanicula bipinnata Donald G. Nelson 1937-3-30 468 Contra Costa Along Marsh Creek Road between Claytonville and Byron Comment
  UCR66591  Sanicula bipinnata L. S. Rose 1934-3-21 34063 Contra Costa 3-6 mi east of Clayton Comment
  RSA471428  Sanicula bipinnata H. de Forest 1930-4-6 s.n. Contra Costa SE of Mortoville, Small coal mine ravine. Comment
  UC691875  Sanicula bipinnatifida Mary L. Bowerman 1931-3-21 595 Contra Costa Mount Diablo, Sycamore Canyon Sycamore Canyon; Mount Diablo, Sycamore Canyon 350 Comment
  CDA38526  Sanicula crassicaulis D. G. Kelch 2003-4-3 3 .367 Contra Costa Carquinez Strait Region; Cummings Skyway. Comment
  UC1555367  Sanicula crassicaulis Jerry Powell 1988-4-8 1527 Contra Costa west Richmond, Point Molate Point Molate; Richmond, Point Molate Comment
  UC2028121  Sanicula crassicaulis Barbara Ertter with Richard K. Brummitt 1998-5-6 16087 Contra Costa Lower Donner Canyon Road on north base of Mount Diablo, ca 1/2 miles south of Donner cabin site. Comment
  UC691878  Sanicula saxatilis Mary L. Bowerman 1935-5-18 3025 Contra Costa Mount Diablo, across the road from and a little east of the parking area Mount Diablo 1066 Comment
  RSA97364  Sanicula saxatilis Mary L. Bowerman 1931-4-25 769 Contra Costa Mount Diablo, summit Comment
  RSA471491  Sanicula tuberosa Brandegee 1884-05 s.n. Contra Costa Antioch Comment
  UCD102395  Sanicula tuberosa Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Bald Ridge Trail. Bald Ridge. 900 Comment
  SEINET238194 Image available Sasa borealis Beecher Crampton 1966-10-18 7815 Contra Costa CULTIVATED ; Kensington Berkeley Hills Blake Garden UC Berkeley Dept. of landscape architecture. Comment
  JEPS100052  Satureja douglasii G. Smick 2003-6-6 GAS 213 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS112483  Satureja douglasii D. G. Kelch 2004-5-2 04 .171 Contra Costa Crockett - Edwards Canyon 112 Comment
  JEPS68967  Saxifraga californica Edward Lee 1935-3-10 1300 Contra Costa s watershed of Kirker Creek (Nortonville); , Kirker Creek Comment
  SEINET3840825  Scabiosa atropurpurea Unknown 2006-6-23 6 .322 Contra Costa West Valona, West of Zampa Bridge above San Pablo avenue, along small stream draining north into the Western end of the Carquinez Strait 91 Comment
  CAS-BOT-BC111465  Schoenoplectus californicus Walter Knight; Joanne Dean 1978-8-14 3189 Contra Costa Browns Island Comment
  CAS-BOT-BC111830  Schoenoplectus tabernaemontani Virginia I. Dains; Walter Knight 1986-8-8 5458 Contra Costa Lct Rock S1 & Werner Cut. Comment
  JEPS46490  Scirpus W. L. Jepson 1919-1-5 8201 Contra Costa Antioch San Joaquin River (on beach) Comment
  CDA39108  Scirpus californicus T. C. Fuller 1964-11-6 12808 Contra Costa Northeast side of Bethel Island. 0 Comment
  SEINET3914283  Scirpus californicus K. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4955 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough, SE portion of Bethel Slough.; 0 610 Comment
  CDA15249  Scirpus maritimus G. F. Hrusa, D. Crowe 1998-5-8 14380 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Comment
  JEPS111881  Scirpus maritimus A. G. Murdock 2004-5-28 300 Contra Costa Luzon 60 Comment
  CDA39143  Scirpus microcarpus D. G. Kelch 2004-7-9 4 .308 Contra Costa Carquinez Strait; Martinez; Alhambra Creek, near Muir gravesite. Arroyo del Hambre. Comment
  UC692194  Scirpus microcarpus Mary L. Bowerman 1942-10-4 3851 Contra Costa Mount Diablo Mount Diablo (Russelman Park Road) 243 Comment
  SEINET3914709  Scirpus olneyi K. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4978 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough. SE portion of Bethel Slough.; 0 610 Comment
  UC1713655  Scutellaria tuberosa Joseph Andorfer Ewan 1934-4-8 8767 Contra Costa head of Arroyo Cayetano; Mount Diablo, Arroyo Cayetano 609 Comment
  UC25824  Scutellaria tuberosa W. H. Brewer 1862-5-1 1037 Contra Costa s of Camp 69 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
  UC2029119  Scutellaria tuberosa Barbara Ertter with Dan Norris 2001-4-8 17585 Contra Costa Lime Ridge Open Space east of Walnut Creek. Comment
  CAS-BOT-BC417826  Sedella pentandra John Thomas Howell 1941-4-6 16182 Contra Costa Near Deer Flat, Mt. Diablo Comment
  CAS-BOT-BC59075  Sedum spathulifolium Mrs. C. E. Sutcliffe 1920-5-30 s.n. Contra Costa Mt. Diablo. Comment
  CAS-BOT-BC363702  Senecio hydrophilus Walter Knight 1977-7-15 s.n. Contra Costa Little Corral site. Antioch Sand Dunes Comment
  CAS-BOT-BC363750  Senecio integerrimus Rimo Bacigalupi 1926-4-30 1352 Contra Costa Summit of Mt Diablo Comment
  UC335828  Senecio triangularis unknown Contra Costa near Mt. Diablo; near Mt. Diablo Comment
Read comments Feb 11 2013
  CAS-BOT-BC80265  Sequoia sempervirens John Thomas Howell 1925-10-11 1500 Contra Costa Moraga Ridge, Oakland Hills Comment
  SEINET3876354 Image available Sequoia sempervirens Judy Kaufman 1963-2-15 9 Contra Costa On slopes of Flicker Ridge.; 0 122 Comment
  CDA33500  Sesbania punicea Slate 2010-7-6 PDR# 1649539 Contra Costa Alamo; 155 Via Bonita 0 Comment
  CDA33621  Sesbania punicea Lepando 2010-7-14 PDR# 1645158 Contra Costa Concord; Rancho Diablo Clubhouse, 355 Vista Grande 0 Comment
  CDA23918  Sesuvium verrucosum D. G. Kelch 2006-7-14 6 .329 Contra Costa Carquinez Strait; Along Marine Vista Ave immmediately west of Pacheco Slough. East of Martinez. Comment
  UC1795725  Sherardia arvensis Barbara Ertter, Mary Bowerman, Lisa Schultheis 1995-3-31 13941 Contra Costa Mount Diablo State Park, lower end of Mitchell Canyon south of Clayton, open oak woodland/grassland open flat area on east side of stream not far from trail head. 182 Comment
  UC1614102  Sidalcea malviflora subsp. malviflora Charles M. Belshaw 1935-6-24 784 Contra Costa Bald Peak ca. 1/2 miles east of Grizzly Peak Comment
  UC692533  Silene verecunda subsp. platyota Mary L. Bowerman 1935-6-1 3108 Contra Costa largest ridge between Ransom Point ridge and Mitchell-Pine divide (Mount Diablo); , btw Ransom Point ridge and Mitchell-Pine div 1066 Comment
  JEPS100172  Silybum marianum G. Smick 2003-5-15 GAS 193 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD115424  Sinapis arvensis R. Koch 1996-4-20 2 Contra Costa city of Danville, free space by Mt. Diablo State Park. 121 Comment
  RSA0027946  Sinapis arvensis Barbara Ertter 1998-4-4 15959 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, west base of northwestern-most ridge, around old orchard. Comment
  UC10827  Sisymbrium officinale unknown 1862-5-5 Contra Costa Walnut Creek Comment
  UC691054  Sisymbrium officinale Mary L. Bowerman 1930-6-3 231 Contra Costa Mount Diablo, West road, 1.9 mi from entrance, (West road = North road) Mount Diablo; , West road Comment
  OBI70547  Sisymbrium orientale D. G. Kelch 2008-3-30 8 .027 Contra Costa Carquinez Strait: Crockets under Zampa (Carquinez) bridge 14 Comment
  CDA3848  Sisymbrium orientale J. Simmen 1973-3-2 Contra Costa Pittsburgh. 0 Comment
  UC2028288  Sisyrinchium bellum Barbara Ertter 1998-6-20 16232 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Alkali Pond at Wiget Lane entrance. Comment
  SEINET8887769  Sisyrinchium bellum C. M. Fryer 1948-4-11 10 Contra Costa Mt. Diablo Comment
  UCD138787  Sisyrinchium bellum Jennifer Davies 1982-4-11 4 Contra Costa 1 mile NW South Checking Station on South Gate Road, Mt. Diablo. 487 Comment
  UC691995  Smilacina racemosa Mary L. Bowerman 1933-5-22 2168 Contra Costa e Knobcone Point (on n face (2 small ridges w of n ridge bearing Pinus attenuata)); Mount Diablo, Inner Black Hills Comment
  UC691998  Smilacina stellata Mary L. Bowerman 1933-5-21 2153 Contra Costa below Grape Spring (s from Curry Canyon); Mount Diablo Comment
  JEPS100154  Solanum umbelliferum G. Smick 2003-3-13 GAS 68 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC26238  Solanum umbelliferum J. Burtt Davy 1895-4-7 985 Contra Costa Antioch Comment
  CAS-BOT-BC231713  Solanum umbelliferum Paul F. Covel 1940-5-12 s.n. Contra Costa Summit, Mt. Diablo Comment
  UC200706  Solanum umbelliferum Katharine Brandegee 1907-6-16 Contra Costa between Antioch and Marsh Creek 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
  CAS-BOT-BC365801  Soliva sessilis Mary L. Bowerman 1931-4-11 689 Contra Costa Mount Diablo. Pine Canyon 121 Comment
  CHSC23344  Sonchus oleraceus Willis Ball 1975-3-2 468 Contra Costa Contra Loma Regional Park. In area #5. On the w side of a hill in area #5 ca. 10 yds. e of water on e side of lake. 32 Comment
  UC2032807 Image available Sonchus oleraceus Doran, Andrew Scott 2012-3-20 677 Contra Costa Brooks island loading dock, North side of island. Comment
  UC606734  Sonchus oleraceus Edward Lee 1936-4-19 1955 Contra Costa ne shore Red Rock (San Francisco Bay); , ne shore Red Rock Comment
  UC650555  Sonchus oleraceus Ira L. Wiggins 1930-4-18 4608 Contra Costa Jersey Island Comment
  CAS-BOT-BC374594  Sonchus oleraceus R. E. Frenkel 1963-8-18 263 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  JEPS107075  Spartina densiflora Barbara Ertter, Rich Rabeler 1994-6-18 12835 Contra Costa Pt. Pinole Regional Shoreline at north end of Richmond; beach on North side Whittell Marsh. Comment
  CAS-BOT-BC236609  Spartina foliosa Evelina Cannon 1900-9-17 s.n. Contra Costa Giant Station Comment
  CDA32680  Spartina foliosa D. G. Kelch 2004-7-9 4 .314 Contra Costa Carquinez Strait Region; Rodeo Shoreline. Comment
  UC1795660  Spergula arvensis subsp. arvensis Barbara Ertter, Gary Schoolcraft, Tony Morosco 1996-4-6 14565 Contra Costa Knobcone Point Road northeast of Knobcone Point in Mt Diablo State Park, near junction of north heading spur road, roadside in open oak woodland. Comment
  UC1618227  Spergularia macrotheca Barbara Ertter 1990-10-14 9661 Contra Costa Point Isabel Regional Shoreline San Francisco Bay, El Cerrito (w shoreline, sw El Cerrito) Comment
  RSA0029285  Spergularia marina Barbara Ertter, John Ginochino, Mary Bowerman 2001-5-8 17630 Contra Costa Northwest flank of Mount Diablo, tributary of Galindo Creek on south side of knoll SW of Mount Zion. Comment
  SFV1240  Spergularia marina J. M. Tucker 1963-4-12 3687 Contra Costa West side of Holey Road, 3 miles southeast of Byron. Comment
  UC1818936  Spergularia rubra Barbara Ertter, Mary Bowerman et al. 1995-5-7 14043 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, damp road bed, clayey, in grassy flat south of pond, near edge of blue oak forest. Comment
  JEPS2868 Image available Sphaeralcea fasciculata var. elmeri A. D. E. Elmer May 1903 4395 Contra Costa Mount Diablo. Comment
Read comments Jun 12 2012
  UC884280  Stachys ajugoides var. rigida Alice Eastwood 1915-5-30 Contra Costa Mt. Diablo Comment
  UC25936  Stachys ajugoides var. rigida W. L. Jepson Contra Costa Fish Ranch Comment
  UC2055617  Stachys pycnantha Joseph Andorfer Ewan 1933-10-15 8035 Contra Costa SW slope Mt. Diablo. 1066 Comment
  CAS-BOT-BC374776  Stebbinsoseris heterocarpa Brandegee No date on label s.n. Contra Costa Antioch Comment
  CAS-BOT-BC386943  Stellaria media Ira L. Wiggins 1930-4-18 4598 Contra Costa N. end of Jersey Island Comment
  CAS-BOT-BC393981  Stellaria nitens Alice Eastwood 1914-3-14 3767 Contra Costa Byron Springs Comment
  JEPS99599  Stellaria nitens Mary Bowerman 1978-4-19 Contra Costa Mount Diablo, Back Canyon Comment
  CDA33818  Stellaria nitens D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .114 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  SEINET238945 Image available Stenotaphrum secundatum Beecher Crampton 1966-10-18 7817 Contra Costa Kensington Berkeley Hills Blake Garden UC Berkeley Department of landscape architecture. Comment
  UC1606432  Stephanomeria elata Barbara Ertter, Brad Olson 1993-10-30 12284 Contra Costa Carquinez Strait Regional Shoreline/Trail west of junction of San Pablo Avenue and Vista del Rio west of Crockett. Comment
  CDA144  Stephanomeria exigua D. G. Kelch, D. A. Weinstein 2007-8-26 7 .553 Contra Costa Carquinez Strait; Ozol Rock, W Martinez. Comment
  UCD150892  Stephanomeria virgata James A. Neilson Jr.; Samuel A Bamberg 1975-10-22 3492 Contra Costa Walnut Creek drainage at State Highway 4. Elevation estimated using Google Earth by label maker. 1 Comment
  UC691440  Stephanomeria virgata subsp. pleurocarpa Mary L. Bowerman 1930-8-31 441 Contra Costa s face Black Hills (roadside); Mount Diablo Comment
  UC2029191  Stipa pulchra Barbara Ertter with Brad Olson et al. 2000-6-2 17298 Contra Costa North side Brushy Peak Regional Preserve NE of Livermore Comment
  POM143633  Streptanthus glandulosus subsp. albidus Jos Burtt Davy 1893-5-13 s.n. Contra Costa Contra Costa Comment
Read comments Aug 17 2011
  CAS-BOT-BC87345  Streptanthus hispidus Mrs. E. C. Sutliffe 1920-5-30 s.n. Contra Costa Mount Diablo. Comment
  JEPS27001  Streptanthus hispidus E. W. Hicks 1917-3-24 112 Contra Costa Mt. Diablo 762 Comment
  SD175848  Stuckenia pectinata D. G. Kelch 2006-9-11 06 471 Contra Costa Crockett Hills East Bay Regional Park. Near old barn and parking lot. 60 Comment
  SD211526  Stuckenia pectinata Barbara Ertter, Lynn Hosley 1991-9-22 10824 Contra Costa Lafayette Reservoir in hills Southwest of Lafayette, in water at East end of dam 136 Comment
  UC1950414  Stuckenia pectinata Barbara Ertter with Brad Olson 1994-8-8 12202 Contra Costa Bishop Ranch Regional Open Space southwest of San Ramon Comment
  UC2028481  Stuckenia pectinata Barbara Ertter with Chris Thayer 1996-10-25 15371 a Contra Costa Northwest flank of Mount Diablo, Tick Pond at arc of Falcon Road between North Gate Road and Castle Rock Comment
  UC2028416  Stuckenia striata Barbara Ertter with Brad Olson, Dianne Lake, Lynne Hosley and A. Youngson 1991-10-20 10866 Contra Costa Dow Wetlands Preserve, just W of Antioch marina Comment
  CAS-BOT-BC422911  Stylomecon heterophylla John Thomas Howell 1931-5-12 6480 Contra Costa North side of Mt. Diablo Comment
  RSA217241  Stylomecon heterophylla D. E. Breedlove 1970-4-18 17430 Contra Costa At the north edge of Lafayette above Laurel Drive 244 Comment
  OBI50444  Suaeda nigra E. E. Stanford August1930 1866 Contra Costa Old River levee Comment
  SEINET4172257  Suaeda nigra J. B. Davy s.n. Contra Costa Mount Diablo, Sivermore Pass Comment
  UC1076414  Symphoricarpos albus var. laevigatus Herbert L. Mason 1924-11-23 1158 Contra Costa Cashion Comment
  JEPS13659  Symphoricarpos mollis H. H. Haworth 1917-5-3 Contra Costa Redwood Peak Comment
  UC1119949  Symphoricarpos mollis R. W. Lundh 1933-3-30 224 Contra Costa 1.5 mi nw Eastport; Concord Quad. 426 Comment
  CAS-BOT-BC97701  Symphyotrichum chilense Walter Knight; Joanne Dean 1978-8-14 3140 Contra Costa Browns Island 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-BC97698  Symphyotrichum chilense D. E. Breedlove 1969-10-18 16717 Contra Costa along the roadbank on Reliez Valley Road at the junction with Gloria Terrace; Lafayette Comment
  UC1818868  Symphyotrichum chilense Barbara Ertter, Lisa Schultheis, Laura Fujii 1995-12-30 14543 Contra Costa Mount Diablo, road to Black Hawk Ridge, north-facing clay slope covered 487 Comment
  UC2012972  Symphyotrichum chilense Barbara Ertter with Lisa Schultheis 1996-9-2 15281 Contra Costa Below Knobcone Point Road along path to Devil's Slide southeast of Curry Point. Comment
  UC1555363  Symphyotrichum lentum Jerry Powell 1988-9-28 1548 Contra Costa Point Molate West Richmond Comment
  JEPS96865  Tamarix parviflora Dean W. Taylor 1971-4-3 986 Contra Costa along Highway 4 in Contra Coasta County 1 mile east of the junction with Byron Road 3 Comment
  UC2029038  Taraxacum officinale Barbara Ertter 2000-3-30 16901 Contra Costa North base of Mount Diablo, lower Mitchell Canyon ca 1 miles from trailhead, near cottonwoods. Comment
  CDA37996  Taraxia ovata D. G. Kelch, A. G. Murdock 2003-3-28 3 .086 Contra Costa Carquinez Strait Region; Rodeo - Lone Tree Point. Comment
  UC1618308  Tauschia hartwegii Barbara Ertter with Travis Columbus 1990-6-10 9106 Contra Costa ne corner Briones Regional Park (e-facing steep hillside above junction of Spengler and Blue Oak trails, Briones Hills, w of Pleasant Hill); ne corner of Briones Regional Park, Briones Hills 274 Comment
  UC333731  Tauschia hartwegii unknown Contra Costa Martinez Comment
  JEPS49692  Tellima grandiflora W. L. Jepson 1891-6-9 13461 Contra Costa Fish Ranch Comment
  UC169716  Tetrapteron graciliflorum Katharine Brandegee April 1889 Contra Costa Antioch Comment
  UC1050827  Thalictrum dipterocarpum N. Floy Bracelin 1942-6-29 2129 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC9708  Thalictrum fendleri var. polycarpum J. Burtt Davy 1895-4-13 1010 Contra Costa near San Pablo Creek Comment
  JEPS111849  Thysanocarpus curvipes A. G. Murdock 2003-2-21 69 Contra Costa Mt. Wanda - Martinez; northeastern area of Mount Wanda property 115 Comment
  JEPS68963  Thysanocarpus curvipes Edward Lee 1935-3-10 1295 Contra Costa e. Antioch (Antioch Sand Dunes); Antioch Sand Dunes Comment
  UC11004  Thysanocarpus curvipes J. Burtt Davy 1895-4-7 885 Contra Costa Antioch Comment
  UC14311  Thysanocarpus curvipes Chestnut and Drew 1889-4-17 Contra Costa Summerville Comment
  UC691143  Thysanocarpus curvipes Mary L. Bowerman 1933-4-9 1842 Contra Costa w fork Donner Canyon Mount Diablo (by trail, Mount Diablo) Comment
  UC11030  Thysanocarpus curvipes subsp. curvipes Brewer 1862-1 Contra Costa Mount Diablo Comment
  SEINET10482179  Thysanocarpus curvipes var. elegans John T. Middleton 1936-4-18 Middleton 140 Contra Costa Briones valley. Comment
  UC11040  Thysanocarpus laciniatus W. H. Brewer 1862-5-14 1097 Contra Costa Mount Diablo, Eagle Peak Comment
  JEPS116724  Thysanocarpus radians David Gowen 2006-4-22 546 Contra Costa Los Vaqueros Watershed. Chaparral area (Mallory Ridge?) just southeast of Morgan Territory Reg. Preserve. 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
  JEPS111629  Torilis nodosa D. G. Kelch 2005-5-1 05 .201 Contra Costa Crockett - Edwards Canyon 100 Comment
  UC692379  Torilis nodosa Mary L. Bowerman 1933-5-21 2149 Contra Costa Grape Spring (off Sulphur Spring Canyon) Comment
  CAS-BOT-BC172936  Toxicodendron diversilobum Alice Eastwood 1915-5-30 4551 Contra Costa Mt. Diablo Comment
  UC575674  Trifolium albopurpureum var. albopurpureum Lewis S. Rose 1935-5-16 35174 Contra Costa Mt. Diablo Comment
  UC692682  Trifolium albopurpureum var. albopurpureum Mary L. Bowerman 1933-4-26 1922 Contra Costa ridge ese the peak (s face); Mt. Diablo, North Peak Comment
  UC165535  Trifolium albopurpureum var. dichotomum J. Burtt Davy 1895-1 949 Contra Costa Antioch Comment
  CAS-BOT-BC5352  Trifolium bifidum William Henry Brewer 1862-5-29 1184 Contra Costa Marsh's Ranch, between Monte Diablo and the San Joaquin. Comment
  UC16439  Trifolium bifidum var. bifidum W. H. Brewer 1862-5-29 1184 Contra Costa Camp 71 Marsh's Ranch; Marsh's Ranch, Camp 71, Contra Costa Co. Comment
  UC85320  Trifolium bifidum var. bifidum Katharine Brandegee 1907-5-5 Contra Costa beside Antioch and Marsh Creek Comment
  UC2070462  Trifolium bifidum var. bifidum Barbara Ertter 2000-5-14 16998 a Contra Costa Lower Donner Canyon on north side of Mount Diablo. Comment
  SBBG29986  Trifolium bifidum var. decipiens J. T. Howell 1933-5-14 11264 Contra Costa hills E of St Mary's College Comment
  UC55887  Trifolium bifidum var. decipiens H. L. Mason 1901-4-5 1735 Contra Costa Mt. Diablo 670 Comment
  UC2028209  Trifolium bifidum var. decipiens Barbara Ertter 1998-5-3 16072 Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, near Wall Point. Comment
  CDA25739  Trifolium ciliolatum D. G. Kelch 2008-4-12 8 .037 Contra Costa Mt Diablo. Mitchell Canyon. Along road looping north of main Mitchell Canyon Rd. Comment
  UC16457  Trifolium ciliolatum Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  UC555598  Trifolium ciliolatum H. L. Mason 1928-4-26 4383 Contra Costa Berkeley-Oakland HIlls Comment
  UC692252  Trifolium ciliolatum Mary L. Bowerman 1932-5-6 1422 Contra Costa Mitchell Canyon Mount Diablo Comment
  UC692256  Trifolium ciliolatum Mary L. Bowerman 1933-5-2 1939 Contra Costa below Pioneer Camp; Mount Diablo 762 Comment
  UC692461  Trifolium ciliolatum Mary L. Bowerman 1935-5-1 2931 Contra Costa r mi from entrance (w rd); Mount Diablo Comment
  UC16529  Trifolium depauperatum var. amplectens C. Michener 1891-4-23 Contra Costa Point Isabel Comment
  UC630976  Trifolium depauperatum var. amplectens unknown 1928-4-19 10043 Contra Costa near Golf Links; Byron Hot Springs Comment
  UCD108372  Trifolium depauperatum var. depauperatum P. B. Kennedy Date Unknown s.n. Contra Costa Vicinity of Bryon Springs, Greene. Comment
  UCSC011140  Trifolium depauperatum var. laciniatum Randy Morgan 1999-5-30 3510 Contra Costa Originally from Byron Springs Rd Comment
  JEPS107067  Trifolium depauperatum var. truncatum Barbara Ertter, Chris Thayer 1995-4-25 13998 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Black Hawk Ridge Rd. on north side Black Hawk Ridge. 548 Comment
  JEPS65752  Trifolium depauperatum var. truncatum Ivar Tiderstrom 1895-4-13 Contra Costa Lafayette Comment
  JEPS100102  Trifolium dubium G. Smick 2003-5-8 GAS 178 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS127103  Trifolium dubium Lowell Ahart, Josephine Guardino 2016-4-19 20757 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Spring USGS 7.5' Quad. Comment
  RSA721747  Trifolium dubium Barbara Ertter, Mary Bowerman 1995-5-7 14023 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, along road through annual grassland with scattered blue oak south of Marsh Creek. Road. summit. 305 Comment
  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
  UC16545  Trifolium fucatum J. Burtt Davy 1895-4-7 959 Contra Costa Antioch Comment
  UC692674  Trifolium fucatum Mary L. Bowerman 1935-5-1 2940 Contra Costa 2.1 mi from North Gate (North Rd, just below rd by a hut); Mount Diablo 182 Comment
  UC631617  Trifolium fucatum P. B. Kennedy 1928-4-28 10094 Contra Costa 2 mi from Tunnel (on hwy) Comment
  POM194649  Trifolium fucatum var. fucatum Y. Mexia 1929-4-21 2369 Contra Costa Moraga Valley. Comment
  UC2027842  Trifolium gracilentum Barbara Ertter with Dan Norris 2001-4-15 17612 Contra Costa Eest side Mount Diablo, divide NW of pond at base of China Wall formation 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
  CHSC116653  Trifolium hirtum Lowell Ahart; Josephine Guardino 2016-4-19 20759 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Field on the west side of the gravel road, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  UC1952814  Trifolium incarnatum Barbara Ertter 2010-5-12 19830 Contra Costa Miller Knox Regional Shoreline at south edge of Point Richmond; along West Ridge Trail Comment
  UC555619  Trifolium macraei H. L. Mason 1928-4-13 4303 Contra Costa Richmond waterfront 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
  JEPS100107  Trifolium microdon G. Smick 2003-4-22 GAS 144 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC692248  Trifolium microdon Mary L. Bowerman 1931-4-25 752 Contra Costa 2 mi from west entrance (=North Gate); Mount Diablo Comment
  UC1795804  Trifolium microdon Barbara Ertter, Lisa Schultheis 1995-4-27 14008 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; northwest side of open grassy ridge at end of Arbolado Dr. 121 Comment
  UC692639  Trifolium obtusiflorum Mary L. Bowerman 1935-5-25 3077 Contra Costa Rhine Canyon Mount Diablo (side of gully containing streamlet) 914 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
  CDA28014  Trifolium oliganthum D. G. Kelch, A. G. Murdock 2005-3-25 5 .089 Contra Costa Carquinez Strait Region; Pinole Peak. Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and north of Pinole Peak. Comment
  JEPS100109  Trifolium oliganthum G. Smick 2003-3-25 GAS 85 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2070437  Trifolium oliganthum Barbara Ertter with Dan Norris 2001-4-8 17592 Contra Costa Lime Ridge Open Space east of Walnut Creek, path northwest of summit installation. Comment
  UCD32493  Trifolium olivaceum Beecher Crampton 1950-4-22 534 Contra Costa Contra Costa County, along State Highway 4, in Concord Valley. 30 Comment
  CDA29549  Trifolium subterraneum D. G. Kelch, Troy MacGregor 2009-5-1 9 .283 Contra Costa Carquinez Strait; Fernandez Ranch in valley bottom along Christie Rd. Comment
  JEPS125936  Trifolium tomentosum D. W. Taylor 2001-3-28 17620 Contra Costa Berkeley Hills; on slopes about 0.75 miles S of Hwy 24 at E portal of the Caldecott Tunnel Comment
  PASA252  Trifolium tridentatum Annetta Carter 1929-3-31 Contra Costa Hills north of Mt. Diablo, near Clayton Comment
  UC16795  Trifolium variegatum var. melananthum W. L. Jepson 1891-5-24 Contra Costa Mt. Diablo Comment
  POM194557  Trifolium variegatum var. melananthum Y. Mexia 1929-4-21 20379 Contra Costa Moraga Valley Comment
  JEPS127672  Trifolium variegatum var. variegatum Barbara Ertter with David Gowen and Michael Park 2017-5-2 22804 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  UC2028286  Trifolium variegatum var. variegatum Barbara Ertter 1998-6-20 16237 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Alkali Pond at Wiget Lane entrance. Comment
  JEPS4408  Trifolium variegatum var. variegatum W. L. Jepson 1891-6-9 13707 Contra Costa Fish Ranch Comment
  CHSC20695  Trifolium willdenovii Robert A. Schlising 1962-4-7 2148 Contra Costa Coastal Range. Along roads near Antioch Reservoir. Comment
  CHSC21627  Trifolium willdenovii Willis Ball 1975-3-9 485 Contra Costa Contra Loma Regional Park. In area #8. On n facing slope on small level mound ca. 450 yds s of main parking lot ca. 750 yds w of Contra Loma Blvd. 76 Comment
  UC1197525  Trifolium willdenovii J. P. Tracy 1900-3-24 604 Contra Costa near Stege 9 Comment
  UC1377676  Trifolium willdenovii W. J. Dress 1951-5-9 3311 Contra Costa just w Orinda Comment
  UC16747  Trifolium willdenovii H. P. Chandler 1900-3-24 587 Contra Costa Briones HIlls Mt. Diablo region Comment
  UC579847  Trifolium willdenovii Annetta Carter 1936-4-19 1110 Contra Costa e side of island Red Rock Comment
  UC692646  Trifolium willdenovii Mary L. Bowerman 1933-5-11 2083 Contra Costa Inner Black Hills Mount Diablo Comment
  POM300698  Trifolium willdenovii Mary L. Bowerman 1933-5-11 2083 Contra Costa Inner Black Hills: Grassy ridge, west end. Comment
  RSA91555  Trifolium willdenovii J. T. Howell 1933-5-14 11231 Contra Costa St. Mary's College. Comment
  JEPS37726  Trifolium wormskioldii W. L. Jepson 1922-5-26 9671 Contra Costa North Berkeley Hills Comment
  UC16828  Trifolium wormskioldii Jos. Burtt Davy 1900-6-7 6663 Contra Costa near Martinez Comment
  JEPS112457  Triglochin maritima D. G. Kelch 2003-8-13 03 .109 Contra Costa Martinez Marsh 0 Comment
  UC1134679  Trillium chloropetalum H. S. Yates 1936-3-14 5360 Contra Costa Marsh Creek Mt. Diablo Quad., Marsh Creek Comment
  UC615554  Trillium chloropetalum Beryl O. Schreiber 1932-3-6 47 Contra Costa near San Pablo Dam San Pablo Dam Comment
  UC367109  Trillium ovatum J. G. Lemmon Apr 1878 Contra Costa [Mount Diablo] Comment
  UC691520  Triodanis biflora Mary L. Bowerman 1933-5-18 2130 Contra Costa Mount Diablo Comment
  UC103158  Triphysaria eriantha subsp. eriantha C. F. Baker 1903-4-27 2792 Contra Costa Byron 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
  JEPS112499  Triteleia hyacinthina D. G. Kelch 2004-4-26 04 .145 Contra Costa Pt. Pinole. 1 Comment
  UC1795734  Triteleia hyacinthina Barbara Ertter, Brad Olson 1994-5-7 12750 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  UC765433  Triteleia laxa R. F. Hoover 1939-4-25 4063 Contra Costa Richmond hills Comment
  SEINET3127299  Triteleia laxa H. A. Walker 1906-1 148 Contra Costa Vicinity of Berkeley Comment
  JEPS17167  Tropidocarpum capparideum S. Galen Smith and Donald Stone 1957-3-30 2867 Contra Costa 3 mi se Byron (far western end of field just n of the Holey Road); Byron Road 5 Comment
  UC596401  Tropidocarpum capparideum R. F. Hoover 1936-3-19 806 Contra Costa Byron Hot Springs Comment
  UC691062  Tropidocarpum gracile Mary L. Bowerman 1932-2-28 1092 Contra Costa ridge e Rhine Canyon; Mount Diablo 579 Comment
  CDA1419  Typha angustifolia D. G. Kelch, Andrew G. Murdock 2003-8-13 3 .105 Contra Costa Carquinez Strait Region; Martinez Marsh. Comment
  UC2061510  Ulmus minor Dean G. Kelch 2016-4-30 16 .103 Contra Costa Carquinez Strait: Selby, west of Crockett. On west side of canyon near old dwelling foundation. Comment
  CDA24512  Umbellularia californica D. G. Kelch 2007-3-24 7 .082 Contra Costa Carquinez Strait; Ozol; between Port Costa and Martinez, near old brick quarry. Comment
  UC1126330  Umbellularia californica R. W. Lundh 1933-3-1 203 Contra Costa Eastport 243 Comment
  SBBG45098  Umbellularia californica var. californica A. Carter 1937-3-20 1224 Contra Costa Lake Orinda Rd, 2 mi NW of Orinda 121 Comment
  CAS-BOT-BC381827  Uropappus lindleyi Mary L. Bowerman 1931-4-4 632 Contra Costa Mount Diablo. Two miles by road from North Gate Comment
  UC691783  Uropappus lindleyi Mary L. Bowerman 1957-5-2 1957 Contra Costa Pioneer Camp Mount Diablo 762 Comment
  CAS-BOT-BC381825  Uropappus lindleyi L. R. Abrams 1921-5-25 8010 Contra Costa Upper slopes of Mt Diablo Comment
  UC1818992  Uropappus lindleyi Barbara Ertter, Lisa Schultheis 1995-4-27 14010 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; northwest side of open grassy ridge at end of Arbolado Dr. 121 Comment
  UCR263554  Urospermum picroides Barbara Ertter 1990-6-18 9133 Contra Costa San Francisco Bay Region, Tilden Regional Park, along Nimitz hiking/bicycle trail near Inspiration Point 206 Comment
  CAS-BOT-BC404065  Urtica dioica subsp. holosericea Vincent Jones 1920-8-29 s.n. Contra Costa Orwood Comment
  CAS-BOT-BC199244  Vaccinium ovatum John Thomas Howell 1925-9-12 1435 Contra Costa Oakland Hills at head of San Leandro Canyon Comment
  UCSB26353  Vaccinium ovatum Havlik, Neil 1969-3-25 Contra Costa Grizzly Peak, just below the summit 518 Comment
  UC1050820  Verbascum olympicum N. Floy Bracelin 1943-5-30 1352 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC723797  Verbena lasiostachys var. lasiostachys Joseph Andorfer Ewan 1936-7-5 9726 Contra Costa Wildcat Creek near CCC camp Wildcat Creek Comment
  UC1124419  Verbena lasiostachys var. scabrida H. S. Yates 1934-9-2 4069 Contra Costa 1 mi sw Mt Diablo; Mt Diablo Quadrangle Comment
  CDA9278  Verbena scabra D. G. Kelch 2002-7-15 2 .006 Contra Costa CA Delta; Old San Joaquin River channel, E of Brentwood. San Joaquin County border. 0 Comment
  UCD17863  Verbesina encelioides subsp. exauriculata Glen Holstein 2000-6-23 s.n. Contra Costa Midway between Brentwood and Oakley on west side of Highway 4. Comment
  JEPS18890  Veronica peregrina subsp. xalapensis Rimo Bacigalupi with G. Thomas Robbins 1956-3-26 5524 Contra Costa 1.2 mi n of junction with Marsh Creek Road ( just n of Briones Valley, along the Deer Valley Road, in territory just s of Antioch,); Deer Valley Road 76 Comment
  UC27730  Veronica peregrina subsp. xalapensis W. H. Brewer 1862-4-30 1026 Contra Costa Walnut Creek, Camp 69 Walnut Creek; , Camp 69 Comment
  UC650440  Veronica peregrina subsp. xalapensis Ira L. Wiggins 1930-4-17 4581 Contra Costa 1/4 mi s of Byron Comment
  UC1050076  Viburnum foetidum var. rectangulatum N. Floy Bracelin 1941-7-13 1476 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CDA6637  Viburnum rigidum Barbara Ertter 2001-10-29 17810 Contra Costa Tilden Regional Park, Selby Trail and Wildcat Gorge upstream from Lake Anza. 0 Comment
  UC1050612  Viburnum suspensum N. Floy Bracelin 1942-2-15 1905 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS99517  Vicia americana Mary Bowerman 1978-5-24 Contra Costa Mount Diablo, Donner Canyon. West trail of Hetherington Loop. 274 Comment
  UCSB12524  Vicia americana Grah, Nancy 1962-4-4 Contra Costa 1.4 miles north of Tarry Lane on Tappen Lane, Orinda 243 Comment
Read comments Mar 15 2008
  UCD38561  Vicia americana var. americana Beecher Crampton 1956-5-14 3426 Contra Costa 4 miles west of Martinez on the road to Crockett, above Port Costa Brick Works. Comment
  CDA28800  Vicia benghalensis D. G. Kelch, Jessica Kolman 2009-5-29 9 .31 Contra Costa Carquinez Strait; Pinole Valley Park, near ridgetop. Comment