Search Results — 2000 specimen records retrieved (1339 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/).
 Records are made available under the CCH Data Use Terms.
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UC1050316  Abelia triflora N. Floy Bracelin 1941-8-24 1583 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  LA35665  Abies bracteata Rimo Bacigalupi; 1960-4-4 7360 Contra Costa Santa Lucia Mts, Wildcat Canyon, Berkely Hills, on short side of road to corporation yard 297 Comment
  UC1187354  Abies bracteata Rimo Bacigalupi 1960-4-4 7360 Contra Costa w slopes of upper Wildcat Canyon ((on short side of road toi corporation yard)); Tilean Regional Park, Berkeley Hills 297 Comment
Read comments 1
  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
  UC1614105  Acaena pinnatifida var. californica Charles M. Belshaw 1935-6-24 788 Contra Costa Bald Peak, ca 1/2 mile east of Grizzly Peak (Bald Peak); Bald Peak Comment
  SBBG27295  Acer negundo A. Carter 1937-4-4 1229 Contra Costa Moraga Valley, 2.5 mi N of Moraga 182 Comment
  UC692720  Acer negundo var. interior Mary L. Bowerman 1931-10-23 1063 a Contra Costa Riggs Canyon mouth Mount Diablo, Riggs Canyon mouth (by stream-bed) 228 Comment
  CAS-BOT-BC21714  Achillea millefolium Walter Knight; Joanne Dean 1978-8-14 3148 Contra Costa Browns Island Comment
  JEPS37093  Achillea millefolium W. L. Jepson 1922-5-23 9651 Contra Costa Mt. Diablo Comment
  JEPS111752  Achyrachaena mollis D. G. Kelch 2005-4-15 05 .153 Contra Costa Rodeo Creek EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump) 220 Comment
  CAS-BOT-BC29883  Achyrachaena mollis Alice Eastwood 1914-1-1 s.n. Contra Costa unspecified Comment
  OBI48824  Achyrachaena mollis Joseph Andorfer Ewan 1935-5-26 9312 Contra Costa E slope Bald Peak, San Pablo Ridge 549 Comment
  SEINET10615056  Achyrachaena mollis John T. Middleton 1936-4-18 Middleton 144 Contra Costa Comment
  UCD128425  Achyrachaena mollis L. S. Smith 1916-5-10 s.n. Contra Costa Grand View Terrace, San Pablo. Comment
  JEPS127096  Acmispon americanus var. americanus Lowell Ahart, Josephine Guardino 2016-4-19 20761 Contra Costa 1.4 miles (air) northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Spring USGS 7.5' Quad. Comment
  RSA0068490  Acmispon brachycarpus Katie Gallagher, Nick Jensen 2014-4-26 184 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  JEPS111513  Acmispon glaber Dean G. Kelch and Andrew G. Murdock 2005-5-13 05 .276 Contra Costa Martinez - West: Ozol Rock and Scenic Drive. Comment
  JEPS112409  Acmispon wrangelianus Dean G. Kelch and Andrew G. Murdock 2005-4-15 05 .152b Contra Costa Rodeo Creek; county: Contra Costa; EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump). Comment
  CDA19102  Acroptilon repens R. Fonseca 2000-10-24 PDR 041911 Contra Costa San Francisco Bay Region; Along Hwy 680 Contra Costa Blvd off-ramp on Monument St., Pleasant Hill. 0 Comment
Read comments May 27 2008
  RSA498006  Adenostoma fasciculatum Robert F. Hoover 1939-04 20470 Contra Costa Head west branch Markley Canyon 305 Comment
  UC12009  Adenostoma fasciculatum W. L. Jepson 1891-5-23 Contra Costa Mt. Diablo Comment
  UC691159  Adenostoma fasciculatum Mary L. Bowerman 1930-6-5 256 Contra Costa w. (North Rd.) 5.8 mi. from entrance Mt. Diablo Comment
  SEINET11906748  Adenostoma fasciculatum E. L. Core 1952-1 s.n. Contra Costa Mt. Diablo Comment
  JEPS112048  Adiantum jordanii D. G. Kelch 2005-1-21 05 .6 Contra Costa Crockett - West Valona Collected along railroad tracks in West Valona across from the decommissioned sewage treatment plant. On north-facing slopes with Quercus agrifolia and Heteromeles arbulifolia and Pinus pinea 8 Comment
  SEINET3449243  Adiantum jordanii Dean G. Kelch, Andrew G. Murdock 2004-2-12 AGM 206 Contra Costa Franklin Canyon, Franklin Canyon, McHarry Ranch Road 126 Comment
Read comments Sep 26 2014
  SEINET3868330 Image available Adiantum jordanii Clayton Newberry 1994-4-30 7255 Contra Costa Mount Diablo State Park, trail from Mitchell Cn. Prkng to Donner Cr.; 0 900 Comment
  RSA585064  Adiantum jordanii C. Newberry 1994-4-30 7255 Contra Costa Mount Diablo State Park, trail from Mitchell Canyon parking to Donner Creek 900 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
  UC18188  Aesculus californica Ivar Tidestrom Jun 1895 Contra Costa Comment
  UC692716  Aesculus californica Mary L. Bowerman 1930-6-3 226 Contra Costa 1.9 mi from Mount Diablo North Road entrance; Mount Diablo Comment
  UC400161  Agoseris grandiflora var. grandiflora Ynes Mexia 1929-4-21 2370 Contra Costa in open fields of grass Moraga Valley Comment
  UC691457  Agoseris grandiflora var. grandiflora Mary L. Bowerman 1933-5-17 2107 Contra Costa branch of Curry due s Olafson's barn; Curry River 289 Comment
  UC691793  Agoseris heterophylla var. heterophylla Mary L. Bowerman 1933-5-11 2093 a Contra Costa Rock City Ridge; Mt. Diablo Comment
  CAS-BOT-BC13348  Agoseris retrorsa LeRoy Abrams 1921-5-25 8030 Contra Costa Summit Mount Diablo Comment
  SBBG115406  Agropogon littoralis B. Crampton 1959-9-3 5454 Contra Costa ca. 2 mi N of Orinda, Bear Crk, East Bay Municipal Utilities District Project Comment
  UC1618364  Agrostis avenacea Barbara Ertter, Brad Olson 1991-9-28 10831 Contra Costa San Pablo Reservoir between Orinda and El Sobrante (at s. end of reservoir); San Pablo Reservoir 91 Comment
  UC2028498  Agrostis exarata Barbara Ertter 1999-6-12 16711 Contra Costa Black Hawk Ridge road on south side of Mount Diablo, road crossing at confluence of NE and E forks of Sycamore Creek Comment
  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
  CAS-BOT-BC138661  Agrostis stolonifera Walter Knight; Joanne Dean 1978-8-14 3172 Contra Costa Browns Island. Comment
  JEPS99483  Aira caryophyllea Mary Bowerman 1978-5-14 Contra Costa Mount Diablo, Eagle Peak Old Mines trail. Comment
  RSA760665  Aira caryophyllea var. capillaris William J. Ferlatte, L. Maynard Moe 1970-4-27 1231 Contra Costa San Francisco Bay, Red Rock Island. Comment
  UC1606340  Alisma plantago-aquatica Barbara Ertter, Brad Olson 1991-9-28 10847 Contra Costa between Orinda and El Sobrante (s end of San Pablo Reservoir); San Pablo Reservoir 94 Comment
  CAS-BOT-BC445379  Alisma plantago-aquatica Mary L. Bowerman 1933-9-9 2429 Contra Costa Mount Diablo. Frog Pond. Comment
  UCD137984  Alisma triviale Beecher Crampton 1950-6-10 589 Contra Costa 1 mile north of Richmond, along Santa Fe R.R. 15 Comment
  POM164980  Allenrolfea occidentalis Jos Burtt Davy 1898-05 s.n. Contra Costa Byron Springs, Mt. Diablo region. Comment
  JEPS108218  Allium amplectens David Gowen 2005-4-30 271 Contra Costa Morgan Territory Regional Preserve. Just east and outside the park along Manzanita Trail. Growing on very rocky east facing slope. Comment
  RSA367156  Allium attenuifolium H. de Forest 1930-4-6 s.n. Contra Costa Unspecified. Comment
  JEPS56381  Allium serra W. L. Jepson 1921-5-22 9198 Contra Costa Mt. Diablo 762 Comment
  UC142793  Allium serra Alice Eastwood 1895-4-8 Contra Costa Antioch Comment
  UC635249  Allium serra H. L. Mason 1929-3-29 5135 Contra Costa Marsh Creek Road 2 mi e Claton; Marsh Creek Road Comment
  UC692028  Allium serra Mary L. Bowerman 1933-4-26 1932 Contra Costa Perkins Canyon branch between the main ridge of North Peak and the ridge to its south Mount Diablo, Perkins Canyon 518 Comment
  CAS-BOT-BC475528  Allium serra Alice Eastwood 1923-5-4 11730 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC475530  Allium serra Alice Eastwood 1914-3-14 3791 Contra Costa Byron Springs Comment
  CAS-BOT-BC475536  Allium serra L. R. Abrams 1921-5-15 8052 Contra Costa At Spring 4 1/2 miles from Summit, Mt Diablo Comment
  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
  UC3116  Allium unifolium State Survey 1174 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC476609  Allium unifolium Mary L. Bowerman 1931-4-19 750 Contra Costa Mitchell Canyon: Small colony near upper end of road. Comment
  UC2028115  Allium unifolium Barbara Ertter with Richard K. Brummitt 1998-5-6 16094 Contra Costa Lower Donner Canyon on north base of Mount Diablo, Hetherington Trail upstream from Donner Cabin. Comment
  JEPS69376  Allophyllum divaricatum Mary L. Bowerman 1933-4-26 1907 Contra Costa North Peak ridge e.-s.e. of peak Mt. Diablo 609 Comment
  JEPS108322  Allophyllum gilioides David Gowen 2005-3-1 169 Contra Costa Mt. Diablo State Park. Just east of Pioneer Horse Camp and south of Green Ranch Road. 853 Comment
  CAS-BOT-BC170928  Alnus rhombifolia W. C. Blasdale 1896-2-29 s.n. Contra Costa Clayton Comment
  CAS-BOT-BC170930  Alnus rhombifolia Walter Knight 1978-9-19 3265 Contra Costa Browns Island, Alder Point Comment
  SEINET3917842  Alopecurus myosuroides George Murray 1964-5-24 s.n. Contra Costa Near San Pablo Dam.; 0 Comment
  CAS-BOT-BC137971  Alopecurus saccatus Alice Eastwood 1914-3-14 3835 Contra Costa Byron Springs. Comment
  UC691945  Amaranthus albus Mary L. Bowerman 1932-8-27 1515 Contra Costa s of Turtle Rock; Mt. Diablo Comment
  POM300587  Amaranthus albus Mary L. Bowerman 1932-8-27 1515 Contra Costa Pond south of Turtle Rock Comment
  UC2027912  Amaranthus californicus Barbara Ertter 2000-9-30 17537 Contra Costa West side Mount Diablo, pond on west side of Briones-Mount Diablo Trail south of Stonegate Trail junction. Comment
  CDA9966  Ambrosia chamissonis D. G. Kelch, A. G. Murdock 2004-7-9 4 .312 Contra Costa Carquinez Strait; Rodeo Shore. Rodeo Shoreline. Comment
  UC1948953  Ambrosia chamissonis William J. Ferlatte, L. Maynard Moe 1970-4-27 1219 Contra Costa San Francisco Bay: Red Rock Island Comment
  CAS-BOT-BC55589  Ambrosia psilostachya Walter Knight; Joanne Dean 1978-8-14 3115 Contra Costa Browns Island Comment
  JEPS78610  Ambrosia psilostachya Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3300 Contra Costa South landing Browns Island Comment
  UC1584662  Ambrosia psilostachya Jerry Powell 1990-8-29 1585 Contra Costa Antioch National Wildlife Refuge Comment
  CHSC97944  Ambrosia trifida J. Clark; C. Beutler 1976-9-1 Contra Costa Residential property, 2161 Youngs Court, Walnut Creek. Comment
  UC12066  Amelanchier utahensis W. H. Brewer 1862-5-1 1036 Contra Costa s of Camp 69 Comment
  UCD33151  Ampelodesmos mauritanicus Beecher Crampton 1966-10-18 7816 Contra Costa Contra Costa County, Kensington, Berkeley Hills Blake Garden, UC Berkeley Dept. of landscape architecture. Comment
  CHSC21836  Amsinckia Robert A. Schlising 1962-4-7 2150 Contra Costa In grass of roadside near Antioch Reservoir. Comment
  CAS-BOT-BC222225  Amsinckia Alice Eastwood; John Thomas Howell 1936-4-19 2131 Contra Costa Nortonville Comment
  CAS-BOT-BC222231  Amsinckia John Thomas Howell 1933-3-29 10916 Contra Costa Pittsburg Comment
  CAS-BOT-BC222233  Amsinckia John Thomas Howell 1933-3-29 10908 Contra Costa Nortonville hills Comment
  CDA29055  Amsinckia intermedia D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .225 Contra Costa Byron Airport. Comment
  CHSC23356  Amsinckia intermedia Willis Ball 1975-2-23 448 Contra Costa Contra Loma Regional Park. In area #2. On s side of hill ca. 50 yds. ne of single restroom at sw end of reservoir, approximately 1/4 way up large hill. 38 Comment
  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
  RSA31867  Amsinckia intermedia A. A. Heller 1938-4-9 15014 Contra Costa In an orchard near Walnut Creek. Comment
  RSA32944  Amsinckia intermedia A. A. Heller 1938-4-9 15016 Contra Costa 3 miles southwest of Antioch Comment
  UC1094071  Amsinckia intermedia Francia Chisaki 1952-3-13 203 Contra Costa 0.25 mi s of Highway #50 (on Mountain House Road) Comment
  CAS-BOT-BC222458  Amsinckia lunaris R. F. Hoover 1939-4-24 4058 Contra Costa Lower end of San Pablo Reservoir Comment
  UC525560  Amsinckia lunaris Joseph P. Tracy 1934-4-30 13196 Contra Costa near Lafayette; Coast Ranges 152 Comment
  UC762084  Amsinckia lunaris R. F. Hoover 1939-4-24 4058 Contra Costa lower end of San Pablo Resevoir Comment
  UC2012977  Amsinckia lunaris Barbara Ertter with Chris Thayer 1993-5-7 11707 Contra Costa Ca 1/2 mile north of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land east of Tilden Park. Comment
  SD71397  Amsinckia menziesii John Thomas Howell 1933-5-14 11224 A Contra Costa St. Mary's College Comment
  SEINET12280508  Amsinckia spectabilis L. S. Rose 1932-1 3272 Contra Costa Byron Comment
  JEPS112043  Anagallis arvensis A. G. Murdock 2004-3-19 215 Contra Costa Luzon Sycamore Ave. just east of Rodeo/Hercules where train crosses Highway 4 (Luzon) 60 Comment
  SBBG122786  Anagallis arvensis B. Ertter 1993-5-7 11717 Contra Costa horse trail SE of Vollmer Peak, E of Tilden Park steam trains 518 Comment
  UC691833  Anagallis arvensis Mary L. Bowerman 1930-6-28 389 Contra Costa Mt. Diablo, Lower Silver Spring Comment
  UC691815  Ancistrocarphus filagineus Mary L. Bowerman 1935-4-17 2834 Contra Costa 2 mi from entrance on West rd (= North Rd), (hillside above serpentine outcrop) Mount Diablo 259 Comment
  UC691814  Ancistrocarphus filagineus Mary L. Bowerman 1936-4-23 3407 Contra Costa flat below, (upper edge 1778 flat) Moses Rock Spring; Mount Diablo Comment
  UC4888  Anemopsis californica W. L. Jepson May 23 1891-May 24 1891 Contra Costa near Mount Diablo Comment
  UCD137881  Anemopsis californica Walter Knight; Irja Knight 1977-6-18 s.n. Contra Costa 2 miles from Dutch Slough on Jensey Island Road, near Oaklay. 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
  CDA29022  Anthriscus caucalis D. G. Kelch 2006-5-7 6 .161 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  UC691891  Anthriscus caucalis Mary L. Bowerman 1932-5-6 1413 Contra Costa Mitchell Canyon floor Mitchell Canyon; Mount Diablo Comment
  JEPS112084  Aphanes occidentalis D. G. Kelch 2004-3-12 04 .35 Contra Costa Pinole Valley Hillside and canyon above Wright Road. Off of Pinole Valley Road 220 Comment
  JEPS45617  Aphanes occidentalis W. L. Jepson 1931-4-5 15720 Contra Costa Nortonville 396 Comment
  UC2062618  Aphanes occidentalis Barbara Ertter with Save Mount Diablo outing 2003-5-8 18163 Contra Costa Mangini property on knoll west of Mount Zion, NW corner of Mount Diablo. Comment
  UC2028980  Apiastrum angustifolium Barbara Ertter 2000-5-14 17018 Contra Costa Donner Basin on north side of Mount Diablo, upper end of Falls Trail near junction of Cardinet Oaks Road. Comment
  UC2046342  Apium graveolens Barbara Ertter July 1999 s.n. Contra Costa Cerrito Creek just east of Pierce Street. Alameda/Contra Costa County line. Comment
  CDA39735  Apocynum cannabinum D. G. Kelch 2004-7-9 4 .306 Contra Costa Carquinez Strait; Alhambra Creek, Martinez, near Muir gravesite, Arroyo del Hambre. Comment
  UC1795686  Aquilegia formosa Barbara Ertter, Mary L. Bowerman 1994-6-19 12840 Contra Costa Mt. Diablo State Park east of Walnut Creek; Muir Picnic Area on Summit Road, 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
  CAS-BOT-BC128691  Arbutus menziesii C. Keefer 1922-9-25 s.n. Contra Costa Moraga Ridge Comment
  UC1085342  Arceuthobium campylopodum Job Kuijt 1957-9-29 1425 b Contra Costa Rock City Mount Diablo Comment
  UC692043  Arceuthobium campylopodum Mary L. Bowerman 1931-10-31 1065 Contra Costa south Rd near junction Mount Diablo Comment
  UC2028013  Arceuthobium campylopodum Barbara Ertter 1997-11-1 15877 Contra Costa South side Mount Diablo, Knobcone Point Road east of junction with Black Hawk Ridge Road. Comment
  CAS-BOT-BC24105  Arctostaphylos auriculata Mary L. Bowerman 1933-3-25 1771 Contra Costa Emmons Canyon, Diablo Stock Farm (Stone Valley) Canyon: Comment
  CAS-BOT-BC24115  Arctostaphylos auriculata Mary L. Bowerman 1932-9-5 1546 Contra Costa Inner Black Hills: Near fire trail which runs south from large spur (on Meridian) heading into Sycamore Canyon. Comment
  CAS-BOT-BC24120  Arctostaphylos auriculata Alice Eastwood 1922-3-17 11083 Contra Costa Mt. Diablo Comment
  CDA9744  Arctostaphylos auriculata D. G. Kelch, D. A. Weinstein 1995-3-6 s.n. Contra Costa Rock City. Mt. Diablo. Comment
  RSA44371  Arctostaphylos auriculata L. S. Rose 1949-3-6 49004 Contra Costa Mt. Diablo, above Rock City. 518 Comment
  RSA622482  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27598 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments Jan 30 2013
  RSA622484  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27596 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments Jan 30 2013
  RSA622486  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27597 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments Jan 30 2013
  RSA70860  Arctostaphylos auriculata L. S. Rose 1934-2-28 34039 Contra Costa 8 miles NE Danville, S slope of Mt. Diablo. Comment
  UC549566  Arctostaphylos auriculata J. E. Adams 1934-3-19 673 Contra Costa Mt. Diablo Comment
  UCD50263  Arctostaphylos auriculata Roman Gankin 1968-11-14 1310 Contra Costa Ca. 300 yds. above the road at Somersville. Comment
  CAS-BOT-BC23551  Arctostaphylos crustacea Walter Knight; Irja Knight 1980-3-16 3715 Contra Costa Sobrante Ridge between Heavenly Ridge Land and Castro Ranch Road. Comment
  CAS-BOT-BC23557  Arctostaphylos crustacea J. E. Adams 1934-3-9 623 Contra Costa Moraga Ridge Comment
  CAS-BOT-BC23561  Arctostaphylos crustacea W. W. Carruth 1902-3-1 s.n. Contra Costa Pine Ridge, Moraga Valley Comment
  UCR7817  Arctostaphylos crustacea Wm. Horn Jr. 1964-2-26 640226 3 Contra Costa San Francisco Bay Region, Flicker Ridge, 1.5 mi SW of Moraga 183 Comment
  SEINET11987135  Arctostaphylos crustacea S. W. Edwards 1981-1 1001 Contra Costa Briones Regional Park, on ridge facing Russell Tree Farm Comment
  UCSB26085  Arctostaphylos crustacea subsp. crustacea Lee, Edward 1935-12-28 Contra Costa Western end of Las Trampas Ridge; (T1S, R2W, Sect. 22, Concord Quadrangle) 426 Comment
  OBI14772  Arctostaphylos glandulosa H. E. McMinn 1923-3-6 875 Contra Costa Sycamore Canon, Mt. Diablo Comment
  UC1120123  Arctostaphylos glandulosa subsp. glandulosa N. French 1933-3-13 34 Contra Costa above dam; San Francisco Quadrangle, San Pablo Comment
  UC692229  Arctostaphylos glandulosa subsp. glandulosa Mary L. Bowerman 1933-4-22 1900 Contra Costa w Cave Point; Mount Diablo, Inner Black Hills Comment
  JEPS38729  Arctostaphylos glauca W. L. Jepson 1916-10-22 6853 Contra Costa Las Trampas Ridge Comment
  RSA0046800  Arctostaphylos glauca Mary L. Bowerman 1933-3-11 1748 Contra Costa Fossil Ridge, outer south face: In gully northwest of South Gate. Comment
  RSA632813  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27589 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
  UCD52165  Arctostaphylos manzanita Edward Lee 1936-1-12 1712 Contra Costa Canyon bottom; immediately south of Nortonville. Comment
  UCSB22281  Arctostaphylos manzanita McMinn, H. 1936-4-11 Contra Costa Mt. Diablo; head of Sycamore Canyon Comment
  CAS-BOT-BC38925  Arctostaphylos manzanita subsp. laevigata L. R. Abrams 1910-10-8 4345 Contra Costa Mt. Diablo 548 Comment
  JEPS19874  Arctostaphylos manzanita subsp. laevigata W. L. Jepson 1922-7-14 9736 Contra Costa Mount Diablo, Head of Sycamore Creek Head of Sycamore Creek; Mount Diablo, Head of Sycamore Creek Comment
  JEPS19876  Arctostaphylos manzanita subsp. laevigata W. L. Jepson 1922-5-23 9660 Contra Costa canyon on s side Mt. Diablo Comment
  JEPS38922  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1932-1-19 1074 Contra Costa just over crest of ridge on n-facing slope Mount Diablo, Inner Black Hills Comment
  POM367351  Arctostaphylos manzanita subsp. laevigata L. S. Rose 1949-3-24 49014 Contra Costa W slope of Mt Diablo, near Rock City. 609 Comment
  RSA164649  Arctostaphylos manzanita subsp. laevigata Percy C. Everett 1963-11-19 24499 Contra Costa Mt Diablo. 457 Comment
  UC692222  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1930-8-31 443 Contra Costa Dan Cook (Rock City) Canyon Mount Diablo Comment
  UC876425  Arctostaphylos manzanita subsp. laevigata Lewis S. Rose 1934-2-28 34040 Contra Costa 8 mi ne Danville (s slope of mt., type locality); Mt. Diablo Comment
  OBI14658  Arctostaphylos manzanita subsp. laevigata H. E. McMinn 1936-4-11 4418 Contra Costa Mt Diablo-head of Sycamore Canyon Comment
  UC2027944  Arctostaphylos manzanita subsp. laevigata Barbara Ertter 1997-9-7 15797 Contra Costa North side Mount Diablo, Donner Canyon, Middle Trail below Falls Trail junction. Comment
  CAS-BOT-BC24382  Arctostaphylos manzanita subsp. manzanita Walter Knight; Irja Knight 1980-3-16 3713 Contra Costa Opposite 5996 Skyline Drive, El Sobrante. Comment
  CAS-BOT-BC24392  Arctostaphylos manzanita subsp. manzanita Walter Knight 1979-5-31 3376 Contra Costa Morgan Territory Regional Land Bank. Comment
  CAS-BOT-BC24396  Arctostaphylos manzanita subsp. manzanita Walter Knight; Irja Knight; James B. Roof 1967-4-2 2061 Contra Costa Nortonville. Comment
  POM300725  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1933-3-25 1765 Contra Costa Emmons Canyon (off Stone Valley), west fork. Comment
  POM300730  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1932-1-30 1083 Contra Costa Inner Black Hills, northwest corner of basin of northeast fork of Sycamore Creek. 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
  JEPS48823  Arctostaphylos tomentosa subsp. crustacea H. M. Wheeler 1944-1-16 27506 Contra Costa Moraga Ridge Oakland Hills 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
  UC1332417  Arctostaphylos tomentosa subsp. crustacea Edward Lee 1935-12-28 1703 Contra Costa sw slope on w end of ridge Concord Quadrangle, Las Tampas Ridge 426 Comment
  UC1332418  Arctostaphylos tomentosa subsp. crustacea Edward Lee 1935-12-28 1702 Contra Costa sw slope on w end of ridge Concord Quadrangle, Las Tampas Ridge 426 Comment
  UC549467  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 636 Contra Costa Moraga Ridge Comment
  UC549469  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 627 Contra Costa Moraga Ridge Comment
  UC909851  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 635 Contra Costa Moraga Ridge Comment
  UC2046013  Arctostaphylos viscida subsp. viscida Stephen W. Edwards July, 2012 s.n. Contra Costa Martinez. Comment
  UC692179  Argemone Mary L. Bowerman 1932-10-1 1603 Contra Costa Mount Diablo, Mitchell Canyon Mitchell Canyon; Mount Diablo, Mitchell Canyon Comment
  CAS-BOT-BC400403  Aristolochia californica D. E. Breedlove 1970-4-18 17444 Contra Costa At the north edge of Lafayette above Laurel Drive 243 Comment
  CDA22411  Aristolochia californica D. G. Kelch, A. G. Murdock 2003-2-7 3 .034 Contra Costa Carquinez Strait Region; McEwen Road. Comment
  JEPS100124  Aristolochia californica G. Smick 2003-2-27 GAS 55 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS75532  Aristolochia californica P. F. Yorks 1974-2-10 109 Contra Costa n of Briones Reservoir (1.6 km s of Bear Creek Road on Hampton Road in Hampton Road Natural Reserve); Hampton Road Natural Reserve Comment
  CAS-BOT-BC400401  Aristolochia californica Wm. M. Canby 1894-3-1 s.n. Contra Costa Walnut Creek Comment
  CAS-BOT-BC82385  Arnica discoidea Paul F. Covel 1938-5-8 1460 Contra Costa Summit Mt. Diablo Comment
  JEPS97592  Arnica discoidea R. D. Stone 1980-7-13 268 Contra Costa ne of intersection of Snake Blvd. and Skyline Blvd Huckleberry Trail; Redwood Regional Park, Oakland Hills 396 Comment
  UC29618  Arnica discoidea F. P. McLean 1875-3-1 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC84953  Artemisia californica L. R. Abrams 1910-10-8 4339 Contra Costa Mt. Diablo 609 Comment
  UC697130  Artemisia californica Mary L. Bowerman 1931-11-21 1069 Contra Costa e flank of Donner Canyon; Mount Diablo Comment
  LA202980  Artemisia californica J. A. Ewan; November 1934 9079 Contra Costa Wildcat Canyon, 0.75 mi. below Orinda road bridge Comment
  UC1584664  Artemisia douglasiana Jerry Powell 1990-8-29 1591 Contra Costa Antioch National Wildlife Refuge Comment
  CAS-BOT-BC90296  Artemisia douglasiana Mary L. Bowerman 1932-9-17 1582 Contra Costa Donner Canyon, west fork Comment
  RSA603956  Artemisia douglasiana Joseph A. Ewan 1934-5-20 8934 Contra Costa Contra Costa County: Russelmann Park, N side Mt. Diablo Comment
  SEINET11773093  Arum italicum F. Tahbaz, Ghavamzadeh, G. 1992-1 416 Contra Costa Orinda, by creek on Moraga Way, across street from Camino Moraga Comment
  UC1051127  Arum italicum N. Floy Bracelin 1944-9-24 2585 Contra Costa the Garden of Anson and Anita Blake Berkeley Comment
  CAS-BOT-BC146259  Arundo donax Walter Knight; et al 1978-10-11 3328 Contra Costa Browns Island. Between South Landing and Alder Point. Comment
  JEPS5091  Asclepias californica Mary L. Bowerman 1935-5-1 2944 Contra Costa 4.4 mi from entrance (West road); Mount Diablo 381 Comment
  UC219339  Asclepias californica H. M. Hall 1922-5-7 11804 Contra Costa Marsh Creek; Mt. Diablo Comment
  UC2028979  Asclepias californica Barbara Ertter 2000-5-14 17019 Contra Costa Donner Basin on north side of Mount Diablo, upper end of Falls Trail near junction of Cardinet Oaks Road. Comment
  POM300678  Asclepias fascicularis Mary L. Bowerman 1935-6-28 3162 Contra Costa South of Chase Pond near trail 518 Comment
  UC2013059  Asclepias fascicularis Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14916 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  SD129705  Asclepias vestita Donald G. Nelson 1937-4-24 520 Contra Costa On Marsh Creek Road, between Byron and Clayton. Comment
  CAS-BOT-BC478832  Asparagus officinalis Walter Knight; Joanne Dean 1978-8-14 3128 Contra Costa Brown's Island Comment
  UC1584827  Asparagus officinalis subsp. officinalis Jerry Powell 1990-8-29 1589 Contra Costa Antioch National Wildlife Refuge Comment
  RSA417742  Aster radulinus M. B. Dunkle 1931-7-18 2501 Contra Costa Strawberry Canyon, Berkeley 152 Comment
  CAS-BOT-BC478053  Asteraceae James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC180529  Astragalus asymmetricus Katharine Brandegee 1908-1-1 s.n. Contra Costa Near Antioch. Comment
  CAS-BOT-BC180572  Astragalus asymmetricus Mrs. E. C. Wright 1917-6-1 s.n. Contra Costa Mt. Diablo Comment
  UC1128839  Astragalus asymmetricus G. T. Nordstrom 1937-10-28 1404 Contra Costa 1.4 mi nne Somersville; Mt. Diablo Quad., nne of Somersville Comment
  UC83459  Astragalus asymmetricus Katharine Brandegee June 1891 Contra Costa Antioch Comment
  POM181432  Astragalus asymmetricus I. L. Wiggins 1930-4-17 4562 Contra Costa Near Mountain House, Altamont Pass. Comment
  SEINET3127336  Astragalus asymmetricus M. K. Curran 1886-5-18 sn Contra Costa Antioch Comment
  UC83444  Astragalus didymocarpus Katharine Brandegee May 1886 Contra Costa Antioch Comment
  JEPS54616  Astragalus didymocarpus var. didymocarpus F. T. Bioletti 1892-1 Contra Costa Byron Comment
  JEPS112423  Astragalus gambelianus Dean G. Kelch and Andrew G. Murdock 2005-4-2 05 .107 Contra Costa Alhambra Valley; county: Contra Costa; EBMUD land. North of intersection of Alhambra Valley Road and Castro Ranch Road. Comment
  UC83409  Astragalus gambelianus Katharine Brandegee april 1889 Contra Costa Antioch Comment
  JEPS116914  Astragalus gambelianus David Gowen 2009-4-4 980 Contra Costa Hard packed sandy area just south of Las Trampas Ridge Trail and about 1/4 mile west of junction with Del Amigo Trail. Comment
  SEINET7716442  Astragalus leucophyllus Chesnut, Drew 1889-4-16 Contra Costa Clayton Comment
  SEINET948569  Astragalus nigrescens Lincoln Constance, Carl W. Sharsmith, Howard S. Reed 1940-1 2572 Contra Costa Pine Canyon, base of Mount Diablo. 305 Comment
  SEINET3869489  Athyrium filix-femina Kaye H. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4983 Contra Costa Franks Tract, along San Joaquin River delta, sand mound slough. SE portion Bethel Slough.; 0 610 Comment
  CAS-BOT-BC17453  Athysanus pusillus M. K. Curran 1883-4-1 s.n. Contra Costa Antioch. Comment
  UC1301000  Athysanus pusillus Helen K. Sharsmith 1963-3-3 5191 Contra Costa e of St. Mary's College (near Moraga, Las Trampas Canyon); San Francisco Bay Region, Las Trampas Canyon 259 Comment
  UC1607661  Athysanus pusillus Barbara Ertter with Michelle Seidl 1992-3-14 10920 Contra Costa e of Mount Diablo (Morgan Territory Regional Preserve); Morgan Territory Regional Preserve Comment
  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-BC16350  Athysanus unilateralis T. S. Brandegee 1884-5-1 s.n. Contra Costa Antioch. 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
  CAS-BOT-BC168541  Atriplex coronata R. E. Frenkel 1964-7-10 648 Contra Costa On Balfour Road, 0.2 miles west of Bixler Road 6 Comment
  CAS-BOT-BC168543  Atriplex coronata R. E. Frenkel 1964-9-18 855 Contra Costa On Balfour Road, 0.2 mile west of Bixler Road 6 Comment
  RSA603503  Atriplex coronata Carol W. Witham 1994-8-6 587 Contra Costa along Kellogg Creek Road under transmission towers 3 Comment
  UC221400  Atriplex coronata H. M. Hall 1923-10-10 11911 Contra Costa on Stockton Road e Byron; e of Byron Comment
  JEPS65178  Atriplex fruticulosa L. R. Heckard 1971-4-15 2489 Contra Costa in crack of old road pavement at intersection of Holey Road s Byron; s of Byron Comment
  UC70181  Atriplex fruticulosa J. Burtt Davy May 1898 Contra Costa region Mount Diablo (Livermore Pass); region of Mount Diablo, Livermore Pass Comment
  UC1601683  Atriplex joaquinana Katharine Brandegee 1907-5-3 Contra Costa between Antioch Marsh Creek; between Antioch and Marsh Creek Comment
  UC1607604  Atriplex triangularis Barbara Ertter with Elizabeth Neese 1988-10-15 7979 Contra Costa in salicornia marsh w. of I-580 in El Cerrito (w side along Rydin Road n of Central Avenue; edge of roadbank and marsh) Comment
  CAS-BOT-BC146023  Avena barbata Mary L. Bowerman 1931-5-13 845 Contra Costa Mount Diablo. Pine Canyon floor one mile above the sulphur spring. Comment
  UC53768  Avena barbata J. Burtt Davy Apr 1897 Contra Costa Point Isabel Comment
  CAS-BOT-BC146021  Avena barbata Mary L. Bowerman 1933-5-8 2002 Contra Costa Mount Diablo. Fossil Ridge, south face, not far from but out of sight of South Gate. 289 Comment
  CDA1747  Avena fatua G. D. Barbe 1983-5-22 4081 Contra Costa Mount Diablo State Park, along fire road north of Juniper Campground. Comment
  CHSC21639  Avena fatua Willis Ball 1975-3-9 478 Contra Costa Contral Loma Regional Park. In area #8. Ca. 600 yds. sw of main parking lit ca. 800 yds. w of Contra Loma Blvd. 152 Comment
  JEPS100027  Avena fatua A. Langston 2003-6-6 AL 37 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS84882  Avena fatua G. D. Barbe 1983-5-22 4081 Contra Costa hillside along fire road n. of Juniper Campground; Mount Diablo State Park 877 Comment
  CAS-BOT-BC145878  Avena fatua Mary L. Bowerman 1933-4-26 1911 Contra Costa Mount Diablo. North Peak ridge east-southeast of the peak. 609 Comment
  UC2070517  Baccharis glutinosa Barbara Ertter 2005-8-15 18629 Contra Costa East side of Contra Loma Reservoir south of Antioch, marsh in SE cove. Comment
  CAS-BOT-BC98190  Baccharis salicifolia Mary L. Bowerman 1932-3-23 1134 Contra Costa Mount Diablo - Donner Canyon stream bed. 152 Comment
  RSA0033933  Balsamorhiza deltoidea Barbara Ertter, Holly C. Forbes 1997-4-20 15564 Contra Costa North base of Mount Diablo at NE base of Eagle Ridge. Lower end of Eagle Peak Trail. Comment
  CAS-BOT-BC106560  Balsamorhiza deltoidea G. L. Stebbins 1937-5-1 2108 Contra Costa North facing ridge, about 1 mile south of Somersville. 365 Comment
  CDA2977  Bassia hyssopifolia D. G. Kelch, A. G. Murdock 2003-8-13 3 .094 Contra Costa Carquinez Strait Region; Martinez Marsh Comment
  CDA28899  Bellardia trixago D. G. Kelch, Troy MacGregor 2009-5-24 9 .3 Contra Costa Carquinez Strait; Carquinez Loop Trail S of Ozol, S-SW of Martinez, nr Wolcott Ln . Comment
  JEPS108533  Bellardia trixago Lisa Schultheis with Kevin Hintsa 1995-4-25 70 -95 Contra Costa Mount Diablo. Along connector trail between Pine Canyon and the Brioines/Mount Diablo Trail Comment
  JEPS21967  Bellardia trixago G. Thomas Robbins with S. Galen Smith 1958-6-2 3849 Contra Costa just e Hercules city boundary (s and above Refugio Valley, slope along Franklin Canyon Road (State Highway 4)) 18 Comment
  UCD146713  Bellardia trixago G. F. Hrusa; D. Crowe 1998-5-8 14386 Contra Costa Sacramento-San Joaquin River Delta. East end of Dow Chemical property at Pittsburg. 15 Comment
  CHSC23354  Bellis perennis Willis Ball 1975-2-23 441 Contra Costa Contra Loma Regional Park. In area #1. Ca. 40 yds W of restroom facility on the S end of the lake. 30 Comment
  UC2027719  Berberis aquifolium var. dictyota Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15515 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  OBI20542  Berberis nevinii Neil Havlik 1968-1 Contra Costa Comment
  UC2028053  Berberis pinnata subsp. pinnata Barbara Ertter with Ann Dennis 1998-1-25 15906 Contra Costa North side Mount Diablo, Cardinet Oaks Road at Donner Creek crossing. Comment
  JEPS111807  Beta vulgaris D. G. Kelch 2003-8-13 03 .97 Contra Costa Martinez Marsh 1 Comment
  CAS-BOT-BC102084  Bidens frondosa F. C. Crawford 1963-9-16 101 Contra Costa Brentwood, Apricot Way. Milen's pipe line Comment
  UC1119039  Blennosperma nanum var. nanum H. S. Yates 1936-4-14 13818 Contra Costa 1/2 mi n of mouth of Perkins Canyon; Mt. Diablo Quadrangle 228 Comment
  UC201362  Blennosperma nanum var. nanum Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  UC579840  Blennosperma nanum var. nanum Annetta Carter 1937-3-7 1223 Contra Costa one mile e Danville; Sycamore Valley Comment
  UC588147  Blennosperma nanum var. nanum Annetta Carter 1937-3-28 1225 Contra Costa 15 mi e, along Marsh Creek Rd Concord 152 Comment
  POM351055  Blepharizonia laxa T. S. Brandegee 1887-09 s.n. Contra Costa Antioch. Comment
Read comments Dec 16 2012
  UC761866  Blepharizonia laxa R. F. Hoover 1937-9-2 2710 Contra Costa 1 mi s of Pittsburg Comment
  JEPS18823  Blepharizonia plumosa R. F. Hoover 1937-8-31 2704 Contra Costa Pittsburg Comment
  POM118273  Blepharizonia plumosa Harriet Ann Walker 1916-8-28 3922 Contra Costa Los Medanos, near Antioch Comment
Read comments Dec 16 2012
  UC762568  Blepharizonia plumosa Robert F. Hoover 1937-9-2 2711 Contra Costa 1 mi w of Antioch Comment
  CAS-BOT-BC100332  Blepharizonia plumosa H. M. Hall 1916-8-17 10275 Contra Costa Los Medanos, Suisan Bay Comment
  SJSU8304  Boechera breweri J. A. Merriman 1965-2-13 51 Contra Costa near summit of Mt Diablo; (Type locality) 853 Comment
  UC186865  Boechera breweri subsp. breweri J. W. Congdon 1896-5-8 Contra Costa Summit of Mount Diablo Mount Diablo Comment
  UC691073  Boechera breweri subsp. breweri Mary L. Bowerman 1932-3-27 1142 Contra Costa Mitchell Rock Mount Diablo Comment
  CAS-BOT-BC15959  Boechera breweri subsp. breweri E. W. Hicks 1917-3-24 111 Contra Costa Mount Diablo. On the western slope of the mountain. 1067 Comment
  POM249869  Boisduvalia densiflora Joseph A. Ewan, Nesta Ewan 1935-8-23 9337 Contra Costa Shasta road entrance, Wildcat Creek drainage Comment
  CAS-BOT-BC31334  Bolboschoenus maritimus Walter Knight; Joanne Dean 1978-8-14 3161 Contra Costa Browns Island. Comment
  UC2029178  Bolboschoenus maritimus subsp. paludosus Barbara Ertter with Alan Prather 2003-6-7 18198 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, fenced pond in bend of east Highland Ridge Trail, 1/4 miles E of junction Stone Corral Trail. Comment
  UCD35160  Bolboschoenus maritimus subsp. paludosus Beecher Crampton 1950-7-28 622 Contra Costa Richmond. Comment
  HSC7467  Bolboschoenus robustus Leo Koch 1940-6-5 1004 Contra Costa Near highway, 2 mi. S of San Rafael ferry dock Comment
  JEPS16063  Bowlesia incana W. L. Jepson 1923-4-22 9867 a Contra Costa Mount Diablo Comment
  UC692369  Bowlesia incana Mary L. Bowerman 1931-3-21 591 Contra Costa Mount Diablo, Sycamore Canyon Sycamore Canyon; Mount Diablo, Sycamore Canyon Comment
  UCD164653  Brassica nigra Henry House 1995-5-20 1995- 22 Contra Costa Approximately 50 m from Walnut Blvd, about 1.25 km south of Marsh Creek Road. 30 Comment
  CAS-BOT-BC106276  Brickellia californica H. E. McMinn 1922-10-17 400 Contra Costa Mitchell Canyon, Mt. Diablo Comment
  RSA7210809  Briza maxima Barbara Ertter, Chris Thayer 1995-4-25 13999 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Black Hawk Ridge Rd at northeast FK of Sycamore Creek 396 Comment
  UC1613947  Brodiaea elegans subsp. elegans Charles M. Belshaw 1935-6-24 1028 Contra Costa Sobrante Hills Comment
  POM181436  Brodiaea terrestris subsp. terrestris I. L. Wiggins 1930-4-17 4573 Contra Costa Near Byron. Comment
  POM300677  Bromus berteroanus Mary L. Bowerman 1933-4-15 1874 Contra Costa Mount Diablo; Canyon south of Arroyo del Cerro: Rocky knoll 250 feet below spring. Comment
  UC1948971  Bromus carinatus William J. Ferlatte, L. Maynard Moe 1970-4-27 1237 Contra Costa San Francisco Bay: Red Rock Island Comment
  UCD58227  Bromus carinatus P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  SEINET10520207  Bromus carinatus Alan A. Beetle 1942-3-22 Beetle 2931 Contra Costa Brooks Island, San Francisco Bay, near Richmond. Comment
  UC677607  Bromus carinatus var. carinatus A. A. Beetle 1942-3-22 2931 Contra Costa near Richmond (San Francisco Bay, Brooks Island); San Francisco Bay, Brooks Island Comment
  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
  POM301029  Bromus diandrus Mary L. Bowerman 1935-5-1 2942 Contra Costa Mount Diablo. West road 4.4 miles from entrance. 396 Comment
  UC692289  Bromus diandrus Mary L. Bowerman 1935-5-25 3068 Contra Costa Mount Diablo, s of summit Mount Diablo 1066 Comment
  JEPS100024  Bromus hordeaceus G. Smick 2003-3-27 GAS 95 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1131074  Bromus hordeaceus C. M. Belshaw 1936-5-7 2047 Contra Costa 2 mi s of San Ramon 274 Comment
  UC53679  Bromus hordeaceus H. M. Hall 1901-4-5 1737 Contra Costa San Francisco Bay Region, Mount Diablo Mount Diablo; San Francisco Bay Region, Mount Diablo Comment
  UC697131  Bromus hordeaceus Mary L. Bowerman 1935-5-16 3007 Contra Costa behind Gabriel-Hinks (Mount Diablo, e side of North Peak); Mount Diablo, North Peak 289 Comment
  UC697134  Bromus hordeaceus Mary L. Bowerman 1931-4-4 644 Contra Costa Mount Diablo, West Raod, about 1 mi from entrance Mount Diablo; , West Raod Comment
  UC697135  Bromus hordeaceus Mary L. Bowerman 1931-5-13 839 a Contra Costa Mount Diablo, Pine Canyon, 1 mi above spring Pine Canyon; Mount Diablo, Pine Canyon Comment
  CAS-BOT-BC155471  Bromus hordeaceus Mary L. Bowerman 1933-4-15 1870 Contra Costa Mount Diablo. Canyon south of Arroyo del Cerro. Rocky knoll 250 feet below spring. Comment
  CAS-BOT-BC162355  Bromus madritensis Mary L. Bowerman 1935-5-3 2961 Contra Costa Sloan Road. 487 Comment
  UC1137749  Bromus madritensis subsp. madritensis C. M. Belshaw 1936-5-8 2072 Contra Costa 1 1/2 mi w of Mount Zion 274 Comment
  UC692336  Bromus madritensis subsp. madritensis Mary L. Bowerman 1932-4-27 1371 Contra Costa canyon w of Riggs Canyon (s face of Oyster Ridge, Mount Diablo); Mount Diablo, Oyster Ridge 289 Comment
  JEPS75534  Bromus madritensis subsp. rubens P. F. Yorks 1974-4-28 1451 Contra Costa 1.7 km s of Bear Creek Road on Hampton Road (n of Briones Reservoir, in Hampton Road Natural Reserve); Hampton Road Natural Reserve Comment
  UC692348  Bromus madritensis subsp. rubens Mary L. Bowerman 1933-5-2 1944 Contra Costa below Pioneer Camp (Mount Diablo); Mount Diablo 762 Comment
  POM300681  Bromus rubens Mary L. Bowerman 1931-5-7 817 Contra Costa Mount Diablo; Northeast slope between summit and North Peak saddle. 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
  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
  JEPS84819  Calamagrostis rubescens J. Stratford 1981-6-8 Contra Costa Huckleberry Trail Huckleberry Botanic Regional Preserve Comment
Read comments Aug 20 2008
  SEINET10521095  Calamagrostis rubescens Virginia E. Long 1933-6-14 Long 222 a Contra Costa Mt. Diablo. Inner Black Hills along with poison oak, N. slope. 564 Comment
  CAS-BOT-BC233994  Calandrinia breweri R. F. Hoover 1939-4-13 4019 Contra Costa Head of Markley Canyon (west branch) Comment
  CDA932  Calandrinia ciliata D. G. Kelch 2005-2-13 05 .007-B Contra Costa Carquinez Strait; Upper Canada de Cierbo. Comment
  JEPS68965  Calandrinia ciliata Edward Lee 1935-3-10 1298 Contra Costa Nortonville; (s watershed of Kirker Creek) Comment
  UC2029035  Calendula arvensis Barbara Ertter 2000-3-30 16907 Contra Costa North side of Mount Diablo, Mitchell Canyon Road uphill of lowermost switchback, exposed roadside. Comment
  SD41282  California macrophylla McCallum 1933-4-26 3696 Contra Costa Near road to Tassajara Comment
  JEPS22442  Callitriche marginata Frank Shultz 1958-3-15 Contra Costa 3 miles south of Byron. 15 Comment
  SEINET8495447 Image available Calochortus albus Susan Keefer 1969-5-2 33 Contra Costa 1.5 miles from Alamo, east base of Las Trampas Ridge, 5 miles west of Mt. Diablo. Comment
  UC2028247  Calochortus argillosus Barbara Ertter, Mary Bowerman, Lisa Schultheis 1998-8-21 16404 Contra Costa North Gate Road on northwest flank of Mount Diablo, 1.6 miles south of park entrance kiosk (site of 16153). Comment
  JEPS112509  Calochortus luteus A. G. Murdock 2003-6-2 77 Contra Costa Crockett - 5th St. Prairie 85 Comment
  UC692000  Calochortus luteus Mary L. Bowerman 1930-6-18 334 Contra Costa Dan Cook Canyon, where C.C.C. Camp built later Mount Diablo Comment
  CAS-BOT-BC132497  Calochortus pulchellus R. F. Hoover 1968-5-16 11092 Contra Costa Upper Marsh Creek Comment
  CAS-BOT-BC132502  Calochortus pulchellus L. R. Abrams 1921-5-25 8053 Contra Costa 4 1/2 mi from summit, Mt. Diablo 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
  RSA215950  Calochortus pulchellus D. E. Breedlove 1970-4-18 17425 Contra Costa At the north edge of Lafayette above Laurel Drive 244 Comment
  SBBG54485  Calochortus pulchellus L. R. Abrams 1921-5-25 8053 Contra Costa Mt Diablo, 4.5 mi from summit Comment
  UC1300909  Calochortus pulchellus Helen K. Sharsmith 1962-5-20 5069 Contra Costa Morgan Territory Road, ne slopes of Mount Diablo San Francisco Bay Region, Mount Diablo 365 Comment
  CAS-BOT-BC132495  Calochortus pulchellus Elizabeth McClintock; Wayne Roderick 1967-5-30 s.n. Contra Costa Marsh Creek Road, n. base of Mt. Diablo 76 Comment
  POM153228A  Calochortus pulchellus C. L. Hitchcock 1928-6-5 14 Contra Costa Between Port Costa and Martinez. 18 Comment
Read comments Feb 14 2017
  CAS-BOT-BC483487  Calochortus splendens Mary L. Bowerman 1931-5-23 898 Contra Costa Oyster Pont Ridge Comment
  CAS-BOT-BC132536  Calochortus umbellatus Rudolf Schmid 1997-4-8 1997 -2 Contra Costa Hillside Natural Area, El Cerrito; sw. of Kent Dr.-Regency Ct. entrance, n. side of junction of the two main fire roads 145 Comment
  UC2027942  Calycadenia truncata Barbara Ertter 1997-9-7 15799 Contra Costa North side Mount Diablo, Falls Trail in Donner Canyon. Comment
  UC2027952  Calycadenia truncata Barbara Ertter with Joanne Kerbavaz and Mary Bowerman 2000-8-20 17512 Contra Costa North side Mount Olympia in Mount Diablo State Park, bulldozed site of former occupation at Zippe Spring. Comment
  CAS-BOT-BC275352  Calycadenia truncata var. truncata Mary L. Bowerman 1931-9-12 1040 Contra Costa Mount Diablo. Mitchell Canyon, spur jutting into W fork 838 Comment
  CAS-BOT-BC275399  Calycadenia truncata var. truncata L. R. Abrams 1910-10-8 4338 Contra Costa Mount Diablo 701 Comment
  CAS-BOT-BC275400  Calycadenia truncata var. truncata A. D. E. Elmer 1903-7-1 4759 Contra Costa Mount Diablo Comment
  UC2028302  Calystegia malacophylla subsp. pedicellata Barbara Ertter, Susan D'Alcamo 1998-6-12 16189 Contra Costa North Peak Trail south of Prospectors Gap on east side of Mount Diablo summit. Comment
  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
  UC23168  Calystegia sepium subsp. binghamiae Jos. Burtt Davy 1900-6-7 6664 Contra Costa near Martinez; near Martinez Comment
  CAS-BOT-BC418632  Calystegia sepium subsp. limnophila R. K. Brummitt; B. Ertter 2012-6-16 22059 Contra Costa Antioch, beside Plaza, at water's edge at upper end of Suisun Bay Comment
  CDA39895  Calystegia sepium subsp. limnophila T. C. Fuller 1964-11-6 12807 Contra Costa Northeast side of Bethel Island. 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
  UC1784911  Calystegia subacaulis subsp. subacaulis Barbara Ertter with Elizabeth Neese 1988-4-24 7452 Contra Costa Black Diamond Mines Regional Preserve SW of Antioch, head of drainage between and parallel to Nortonville and Somersville roads Comment
  UC2028306  Calystegia subacaulis subsp. subacaulis Barbara Ertter, Susan D'Alcamo 1998-6-12 16199 Contra Costa Along Curry Canyon Road just east of Curry Point, south side of Mount Diablo. Comment
  JEPS31810  Camissonia campestris Miss Linda Gehringer 1914-3-29 Contra Costa Brentwood Comment
  POM31989  Camissonia campestris subsp. campestris C. F. Baker 1903-4-28 2807 Contra Costa Antioch 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
  UC140387  Camissoniopsis micrantha C. F. Baker 1903-4-25 2808 Contra Costa sandhills Antioch Comment
  CAS-BOT-BC266436  Campanula exigua Alice Eastwood 1915-5-30 4452 Contra Costa Mount Diablo Comment
  UC29002  Campanula exigua Edw. L. Greene 1892-6-20 Contra Costa Mount Diablo Comment
  RSA128367  Capsella bursa-pastoris P. H. Raven 1950-3-5 1406 Contra Costa 0.75 mile from place where it meets Orinda - Richmond Road, Bear Creek Road. 107 Comment
  CAS-BOT-BC37394  Cardamine californica John Thomas Howell 1933-5-14 11255 Contra Costa Hills east of Saint Mary's College. Comment
  JEPS111860  Cardamine californica D. G. Kelch 2004-3-12 04 .23 Contra Costa Pinole Valley Hillside and canyon above Wright Road. Off of Pinole Valley Road 140 Comment
  UC480597  Cardamine californica Carl Meyer 1928-2-22 289 Contra Costa Mt. Diablo Comment
  UC665667  Cardamine californica Annetta Carter, Helen Sharsmith 1940-3-17 1498 Contra Costa near Stege Railroad Station two mi se Richmond; se of Richmond, near Stege Railroad Station 7 Comment
  UC762889  Cardamine californica R. F. Hoover 1938-2-21 2754 Contra Costa Point Richmond Comment
  LA204280  Cardamine californica John Thomas Howell; 1931-3-10 5757 Contra Costa Mt. Diablo, 7 miles from Clayton on Livermore road Comment
  UCSB2297  Cardamine californica Kamb, Peter; Chisaki, Francia 1950-3-18 Contra Costa Saddle between North and South Peaks of Mt. Diablo 883 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
  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
  JEPS25275  Cardaria pubescens G. Thomas Robbins 1959-9-13 4162 Contra Costa R.R. right-of-way above salt marsh at n. edge Pinole Comment
  UC517456  Carduus pycnocephalus subsp. pycnocephalus J. Thomas Howell 1933-5-14 11246 Contra Costa hills e of St. Mary's College Comment
  UC582525  Carduus pycnocephalus subsp. pycnocephalus Joseph P. Tracy 1934-4-30 13188 Contra Costa roadside between Moraga and Lafayette Moraga 152 Comment
  CAS-BOT-BC281803  Carduus tenuiflorus David Keck 1941-6-5 5312 Contra Costa Berkeley Hills, Fish Creek Rd, 0.25 mile W of E portal of Broadway Tunnel 335 Comment
  POM226232  Carduus tenuiflorus J. T. Howell 1933-5-21 11323 Contra Costa San Pablo Comment
  CAS-BOT-BC34930  Carex densa Mary L. Bowerman 1934-4-21 2531 Contra Costa Mount Diablo. Canyon Nook at junction of North and South Roads. Comment
  UC691963  Carex densa Mary L. Bowerman 1938-5-28 3646 Contra Costa South Road, by spring, paralleling streamlet Mount Diablo 640 Comment
  RSA720799  Carex nudata Mary L. Bowerman 1977-04 s.n. Contra Costa Mount Diablo. Sycamore Creek canyon. 244 Comment
  UC1618279  Carex pellita Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, and Amy Hiss 1991-8-18 10705 Contra Costa opposite Pittsburg Marina (near w end of island, n of Pittsburg, near confluence of Sacramento and San Joaquin rivers); Browns Island Comment
  UC1952822  Carex pendula Barbara Ertter with David Gowen 2010-11-17 20699 Contra Costa southeast part of Lime Ridge Open Space (City of Walnut Creek), lower end of east-facing drainage below Crystyl Ranch Trail ca 1/4 mi N of jct Paraiso Trail Comment
  UC2031466  Carex praegracilis Barbara Ertter with Brad Olson 1991-11-10 10886 Contra Costa Point San Pablo in extreme west of Richmond 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
  UC691954  Carex serratodens Mary L. Bowerman 1938-6-30 3706 Contra Costa Indian Ceremonial Spring Mount Diablo 1005 Comment
  UC823230  Carex serratodens Lewis S. Rose 1935-5-16 35163 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC117552  Carex serratodens Miss Mary Leolin Bowerman 1938-5-28 3640 Contra Costa Patens Spring (North Road, 1800 feet). 548 Comment
  SEINET7575209 Image available Carex serratodens Lewis S. Rose 1935-5-16 35163 Contra Costa Mt. Diablo. Comment
  UC1818878  Carex serratodens Barbara Ertter, Kristin Ertter 1995-7-11 14487 Contra Costa Partial shade of willows, mudflat around Pine Pond inlet. Comment
  UC593503  Carex subbracteata G. L. Stebbins Jr. 1936-5-9 1555 Contra Costa e side Wildcat Canyon; Berkeley Hills Comment
  CDA34479  Carex subbracteata D. G. Kelch 2006-3-18 6 .106 Contra Costa 2 km N-NW of Orinda Village. NW of corner of San Pablo Dam Rd & Bear Valley Rd. 0 Comment
  RSA639387  Castilleja affinis H. P. Bracelin 1933-6-10 768 Contra Costa Near crest of hills north of Berkeley above Kensington. Comment
  JEPS65198  Castilleja affinis subsp. affinis L. R. Heckard 1971-4-15 2469 Contra Costa e of Mt. Diablo (along Morgan Territory road, 7 mi n of Morgan Territory road intersection with Manning road) 487 Comment
  UC1039781  Castilleja affinis subsp. affinis H. L. Mason 1928-4-29 4438 Contra Costa Mount Diablo Comment
  HSC101960  Castilleja applegatei subsp. martinii Nikolaus Gillen, Michelle Bihler 2014-3-20 12 Contra Costa Mount Diablo State Park. Eagle Peak Trail. 649 Comment
  JEPS74807  Castilleja densiflora subsp. densiflora L. R. Heckard, T. I. Chuang and R. Bacigalupi 1975-5-7 4015 Contra Costa ca 0.5 mi e Pinole (just e of Interstate Hwy 80, along main route of Santa Fe Railroad) Comment
  JEPS16805  Castilleja exserta subsp. exserta Rimo Bacigalupi with G. Thomas Robbins 1955-5-4 4983 Contra Costa 1.25 mi e Antioch (near the San Joaquin River) 9 Comment
  UC27243  Castilleja exserta subsp. exserta H. P. Chandler 1900-3-24 Contra Costa Briones Hills; Mount Diablo Region Comment
  UC2028155  Castilleja exserta subsp. exserta Barbara Ertter 1998-4-4 15956 Contra Costa Shell Ridge Open Space northwest of Mount Diablo. Comment
  JEPS84387  Castilleja foliolosa Roxanne L. Bittman 1977-3-29 28 Contra Costa ca 3 from base on n side Mount Diablo (Scenic Road) 762 Comment
  UC691573  Castilleja rubicundula subsp. lithospermoides Mary L. Bowerman 1931-5-21 884 Contra Costa w of Curry-Cave Point trail; Mount Diablo 548 Comment
  JEPS48749  Castilleja subinclusa subsp. franciscana H. M. Wheeler 1944-1-16 27511 Contra Costa Upper San Leandro Canyon Oakland Hills, Moraga Ridge Comment
  CAS-BOT-BC41035  Caulanthus flavescens Mary L. Bowerman 1935-4-22 2879 Contra Costa Mount Diablo. North Road 2 miles from North Gate. 213 Comment
  POM11961  Caulanthus lasiophyllus var. rigidus Katherine Brandegee s.n. Contra Costa Byron Hot Springs. Comment
  UC692610  Ceanothus cuneatus var. cuneatus Mary L. Bowerman 1931-2-28 527 Contra Costa near top of South Rd Mount Diablo Comment
  UC2062617  Ceanothus oliganthus var. oliganthus Barbara Ertter with Linda Vorobik 2002-4-6 17820 Contra Costa South flank of Mount Diablo, west fork of Alamo Creek at end of spur road under powerlines. Comment
  CHSC24694  Ceanothus oliganthus var. sorediatus G. Strang 1976-4-17 15 Contra Costa 2 .7 mi w of Canyon school on Pinehurst Rd. on se facing bank. 121 Comment
  UC18334  Ceanothus oliganthus var. sorediatus State Survey 1862-5-17 1005 Contra Costa Mt. Diablo Comment
  UC692588  Ceanothus oliganthus var. sorediatus Mary L. Bowerman 1935-5-30 3084 Contra Costa By Donner Canyon stream 161 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
  JEPS99959  Centaurea calcitrapa A. Langston 2003-7-28 AL 76 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CDA7090  Centaurea calcitrapa T. C. Fuller 1961-9-13 7000 Contra Costa Highway J4, ca. 4 miles southeast of Byron. 0 Comment
  JEPS111518  Centaurea melitensis D. G. Kelch 2005-5-13 05 .281 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 66 Comment
  JEPS111663  Centaurea melitensis A. G. Murdock 2004-5-28 286 Contra Costa Pinole Peak 205 Comment
  UC1555364  Centaurium davyi Jerry Powell 1988-6-28 1541 Contra Costa Point Molate, in w Richmond Richmond, Point Molate 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-BC288537  Centromadia fitchii David D. Keck 1933-11-2 2616 Contra Costa 1 mile E of Nichols, N part of county Comment
  CAS-BOT-BC288542  Centromadia fitchii L. S. Rose 1941-10-13 41464 Contra Costa 1 mile E of Walnut Creek 50 Comment
  UC1069557  Centromadia parryi subsp. congdonii H. S. Yates 1934-9-2 4072 Contra Costa 1 mi ne Danville; Mt. Diablo Quadrangle Comment
  UC523550  Centromadia parryi subsp. congdonii David D. Keck 1933-11-2 2610 Contra Costa Crow Creek Canyon Road 1/2 mi from turnoff San Ramon Comment
  OBI16179  Centromadia parryi subsp. congdonii Robert F. Hoover 1966-8-31 9943 Contra Costa Jctn of Tassajara and Freitas Rds E of Danville Comment
  CDA9504  Centromadia pungens D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .231 Contra Costa Byron Airport. Comment
  UCD19693  Centromadia pungens Donald W. Kyhos 1963-4-11 s.n. Contra Costa 3.6 miles south of Byron Hwy and Byron Hot Springs Rd. Comment
  UC523551  Centromadia pungens subsp. pungens David D. Keck 1933-11-2 2613 Contra Costa 3 mi s Martinez (on road to Pacheco) Comment
  CAS-BOT-BC279192  Centromadia pungens subsp. pungens Niall McCarten; V. I. Dains 1986-1-1 03251142 Contra Costa Wl of Camino Diablo & Kellogg Creek Comment
  JEPS35033  Centromadia pungens subsp. pungens W. L. Jepson 1896-5-31 Contra Costa Wild Cat Creek Comment
  CDA29228  Cerastium glomeratum D. G. Kelch 2005-5-13 05 .272-C Contra Costa Carquinez Strait; Above and west of Edwards Canyon, nr Crockett. Comment
  UC1948960  Cerastium glomeratum William J. Ferlatte, L. Maynard Moe 1970-4-27 1233 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC579851  Cerastium glomeratum Annetta Carter 1936-4-19 1114 Contra Costa 1 mi. s.w Castro Point (e. side Red Rock); San Francisco Bay, Red Rock Comment
  CAS-BOT-BC137009  Cercocarpus betuloides var. betuloides Mary L. Bowerman 1932-9-3 1538 Contra Costa Mount Diablo. Summit Comment
  UC2028248  Chamaesyce ocellata subsp. ocellata Barbara Ertter, Mary Bowerman, Lisa Schultheis 1998-8-21 16402 Contra Costa North Gate Road on west side of Mount Diablo, 1 mile below Junction. Comment
  JEPS111950  Chamaesyce serpens D. G. Kelch 2004-5-21 04 .221 Contra Costa Crockett - Edwards Canyon Edwards Creek EBRP Staging Area near Greenhouse 24 Comment
  JEPS111952  Chamaesyce serpens D. G. Kelch 2004-7-9 04 .301 Contra Costa McEwen Road McEwen marsh. McEwen Road North of Cummings Skyway 130 Comment
  CAS-BOT-BC70278  Cheilanthes intertexta John Thomas Howell 1955-3-6 30145 Contra Costa between South & North peaks of 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
  UC2012997  Chenopodium ambrosioides Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14925 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  SBBG54463  Chorizanthe membranacea L. R. Abrams 1921-5-25 Contra Costa Mt Diablo Comment
  CAS-BOT-BC252679  Chorizanthe membranacea L. R. Abrams 1921-5-25 8009 Contra Costa Nera summit of Mt. Diablo Comment
  CAS-BOT-BC30109  Chrysolepis chrysophylla var. minor John Thomas Howell 1925-9-19 1442 Contra Costa Moraga Ridge, Oakland Hills Comment
  OBI3313  Chrysolepis chrysophylla var. minor Neil Havlik 1969-9-1 518 Contra Costa Along the Huckleberry Trail aobut 1/2 mi from Skyline Blvd, Oakland HIlls 396 Comment
  RSA0070598  Cirsium cymosum Mary L. Bowerman 1935-5-22 3041 a Contra Costa Eagle point ridge, canyon at north end which heads into saddle west of Twin Peaks. 305 Comment
  UC691390  Cirsium occidentale var. venustum Mary L. Bowerman 1930-6-10 295 Contra Costa near Mineral (on North Road); Mount Diablo 396 Comment
  UCD161763  Cirsium vulgare James A. Neilson Jr.; Samuel A. Bamberg 1972-10-22 3507 Contra Costa Walnut Creek drainage. (Exact location unknown. Coordinates and elevation estimated by label maker based on collection data from same date.) 1 Comment
  JEPS111557  Clarkia affinis A. G. Murdock 2003-6-2 85 Contra Costa Port Costa - Reservoir: Uphill bank at east Crockett-Port Costa junction 28 Comment
  UC692500  Clarkia affinis Mary L. Bowerman 1935-5-22 3041 Contra Costa canyon at n end Eagle Point Ridge (canyon heads into saddle w of Twin Peaks); Mount Diablo 304 Comment
  UC692501  Clarkia affinis Mary L. Bowerman 1933-5-18 2123 Contra Costa Blackberry Spring Mount Diablo Comment
  UC692504  Clarkia affinis Mary L. Bowerman 1933-5-17 2095 Contra Costa due s Olafsons' barn (branch of Curry Cave Canyon); Mount Diablo Comment
  UC2028167  Clarkia affinis Barbara Ertter 1998-5-3 16077 Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, near Wall Point. Comment
  RSA0059973  Clarkia amoena subsp. amoena H. de Forest 1930-6-29 s.n. Contra Costa Dry bank on Tunnel Rd. Comment
  CDA9430  Clarkia biloba D. G. Kelch 1999-6-23 99 .001-D Contra Costa Carquinez Strait; Vaca Canyon along Alhambra Valley Road about 1.5 mile East of Pig Sale. Comment
  JEPS43823  Clarkia biloba C. L. Hitchcock 1928-6-5 13 Contra Costa 1 1/2 mi from Port Costa (between Port Costa and Martinez) 40 Comment
  UC373498  Clarkia biloba C. L. Hitchcock 1928-6-5 13 Contra Costa 1 1/2 mi from Port Costa (between Port Costa and Martinez) 40 Comment
  UC85528  Clarkia biloba Katharine Brandegee 1907-7-4 Contra Costa between Martinez and Port Costa Comment
  JEPS111565  Clarkia biloba subsp. biloba D. G. Kelch 2000-5-22 00 .142 Contra Costa Crockett - Eckley North-facing railroad cuts west of Bull Valley Staging Area 7 Comment
  SDSU8648  Clarkia concinna D. F. Howe 1968-5-20 4518 Contra Costa 5.6 miles north of contra Costa-Alameda Co. line on Morgan Territory Road. Comment
  CDA38052  Clarkia concinna subsp. concinna A. G. Murdock 2003-6-24 117 Contra Costa Carquinez Strait; Vaca Canyon; Alhambra Valley Rd on south bank. Comment
  CDA38704  Clarkia gracilis subsp. gracilis D. G. Kelch 2007-6-3 7 .43 Contra Costa East Bay; Along gated portion of Hampton Rd N of San Pablo Reservoir. Comment
  CAS-BOT-BC172037  Clarkia gracilis subsp. gracilis Mary L. Bowerman 1942-5-24 3840 Contra Costa Jim White Trail to Deer Flat, Mount Diablo 853 Comment
  UC2031423  Clarkia modesta Barbara Ertter with David Gowen 2007-5-13 19015 Contra Costa Mount Diablo, W end Prospectors Gap Road just E of of junction Meridian Ridge Road Comment
  CAS-BOT-BC163669  Clarkia purpurea subsp. quadrivulnera Alice Eastwood 1915-5-30 4549 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC163672  Clarkia purpurea subsp. quadrivulnera John Thomas Howell 1931-5-12 6483 Contra Costa Mt. Diablo Comment
  CDA9193  Clarkia purpurea subsp. quadrivulnera Christopher Thayer 1995-5-2 s.n. Contra Costa Carquinez Strait; Carquinez Scenic Dr near Ozol entrance gate. 0 Comment
  UC2028320  Clarkia purpurea subsp. viminea Barbara Ertter, Susan D'Alcamo 1998-6-12 16157 Contra Costa North Gate Road on west flank of Mount Diablo, ca 1/2 mile below upper Turtle Rock Ranch buildings. Comment
  JEPS75480  Clarkia rubicunda P. F. Yorks 1975-7-18 473 Contra Costa n of Briones Reservoir (ca 1.9-2.0 km s of Bear Creek Road on Hampton Road in Hampton Road Natural Reserve); Hampton Road Natural Reserve Comment
  UC1279947  Clarkia rubicunda Peter H. Raven 1957-7-5 11049 Contra Costa 0.2 mi from tip Point Richmond 106 Comment
  UC1481547  Clarkia rubicunda Neil Havlik 1980-6-6 942 Contra Costa Several colonies on Brooks Island Comment
  RSA113595  Clarkia rubicunda Peter H. Raven 1957-7-5 11049 Contra Costa 0.2 mile from tip of Point Richmond Comment
  UC114011  Clarkia rubicunda Katharine Brandegee 1908-7-3 Contra Costa n side Point Isabel (type locality) Comment
  POM32263  Clarkia rubicunda subsp. blasdalei Katherine Brandegee 1908-7-3 s.n. Contra Costa Point Isabel, north side Comment
  CAS-BOT-BC165450  Clarkia unguiculata E. E. Stanford 1930-5-24 1510 Contra Costa Marsh Creek Canyon Comment
  JEPS100002  Clarkia unguiculata G. Smick 2003-5-20 GAS 194 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC439165  Claytonia exigua subsp. exigua Mary L. Bowerman 1932-3-12 1110 Contra Costa Mount Diablo. Alamo Canyon 350 Comment
  CAS-BOT-BC439167  Claytonia exigua subsp. exigua John Thomas Howell 1926-3-7 1676 Contra Costa Mt. Diablo Comment
  UC692543  Claytonia exigua subsp. exigua Mary L. Bowerman 1933-4-15 1875 Contra Costa s of (canyon s, below spring) Arroyo del Cerro; Mount Diablo 76 Comment
  UC692553  Claytonia exigua subsp. exigua Mary L. Bowerman 1935-4-17 2846 Contra Costa 2 mi from West Road (= North Road), Mt. Diablo entrance (ridge w of chaparral); Mount Diablo 335 Comment
  UC7935  Claytonia exigua subsp. exigua W. H. Brewer 1862-5-7 1059 Contra Costa Summit of Mt. Diablo; Mt. Diablo Comment
  CAS-BOT-BC439170  Claytonia exigua subsp. exigua Alice Eastwood 1915-5-30 4532 Contra Costa Unspecified Comment
  CAS-BOT-BC439330  Claytonia gypsophiloides H. M. Hall 1901-4-5 1759 Contra Costa Region of San Francisco Bay. Mt. Diablo 1158 Comment
  JEPS107017  Claytonia gypsophiloides J. Greenhouse with Kevin Hintsa 2004-4-5 5083 Contra Costa Mt. Diablo, Fire Interpretive Trail 1109 Comment
  CAS-BOT-BC439328  Claytonia gypsophiloides Mary L. Bowerman 1931-4-19 736 Contra Costa Mount Diablo. Deer Flat Comment
  CAS-BOT-BC439441  Claytonia parviflora subsp. parviflora A. A. Heller 1908-4-17 8909 Contra Costa Tracy 10 Comment
  UC1745428  Claytonia parviflora subsp. parviflora Annetta M. Carter, Leo Bowerman 1935-6-1 870 Contra Costa Mt. Diablo. Main ridge running W from peak. 975 Comment
  UC2062631  Claytonia parviflora subsp. parviflora Barbara Ertter with David Gowen, Mike Park 2004-4-13 18353 Contra Costa Black Diamond Mines Regional Park south of Pittsburg, S of Somersville townsite, Chaparral Loop Trail just across footbridge from Manhattan Trail cut-off. Comment
  UC2028060  Claytonia parviflora var. parviflora Barbara Ertter, Tony Morosco 1998-4-12 16014 Contra Costa Mount Olympia on north side of Mount Diablo. Comment
  HSC17691  Claytonia perfoliata subsp. mexicana D. A. Shally 1965-4-18 33 Contra Costa Canyon, 1 mi. N of Canyon Store Comment
  CAS-BOT-BC440075  Claytonia perfoliata subsp. perfoliata John Thomas Howell 1931-3-10 5755 Contra Costa East side of Mt. Diablo 7 miles from Clayton on Livermore road Comment
  CAS-BOT-BC440077  Claytonia perfoliata subsp. perfoliata John Thomas Howell 1931-3-10 5755 Contra Costa East side of Mt. Diablo 7 miles from Clayton on Livermore road Comment
  UC1057451  Claytonia perfoliata subsp. perfoliata G. Thomas Robbins 1937-4-25 148 Contra Costa 2 mi e Alamo Comment
  UC1050389  Clematis heracleifolia var. davidiana N. Floy Bracelin 1941-9-28 1703 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC91360  Clematis lasiantha Alice Eastwood 1915-5-30 4460 Contra Costa Mount Diablo. Comment
  RSA135362  Clematis lasiantha Volney Rattan 1883-04 s.n. Contra Costa Martinez. Comment
Read comments Jul 18 2011
  SEINET12050675  Clintonia andrewsiana W. Knight, Knight, I. 1988-1 6129 Contra Costa Redwood Regional Park, between pipe bridge and single curb bridge along Steam Trail 274 Comment
  SEINET12051855  Clintonia andrewsiana W. Knight, Knight, I. 1988-1 6129 Contra Costa Redwood Regional Park, between pipe bridge and single curb bridge along Steam Trail 274 Comment
  UCSC006802  Collinsia Randall Morgan 1988-4-29 1151 Contra Costa Scree at NW slope of Twin Peaks, Mt. Diablo Comment
  SEINET10865415  Collinsia concolor John T. Middleton 1936-3-18 Middleton 136 Contra Costa Briones valley. Comment
  JEPS100147  Collinsia heterophylla G. Smick 2003-4-3 GAS 118 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  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
  JEPS7320  Collinsia heterophylla Mary L. Bowerman 1935-3-16 2739 Contra Costa Mount Diablo, e fork of Arroyo del Cerro Arroyo del Cerro; Mount Diablo, Arroyo del Cerro 262 Comment
  UC103400  Collinsia heterophylla K. Brandegee May 1889 Contra Costa Antioch Comment
  UC1301183  Collinsia heterophylla Helen K. Sharsmith 1962-4-18 4949 Contra Costa vicinity of Martinez (near McEwen Road); San Francisco Bay Region 106 Comment
  JEPS87900  Collinsia sparsiflora var. collina Barbara Ertter, Brad Olson 1992-4-13 10951 Contra Costa e of Curry Point (Mount Diablo State Park, Knobcone Point Road); Mount Diablo State Park, Knobcone Point Road 518 Comment
  JEPS18380  Collinsia sparsiflora var. collina Rimo Bacigalupi with F. Chisaki 1957-3-27 5764 Contra Costa 1 mi se Byron (on Byron Hwy) Comment
  POM203034  Collinsia sparsiflora var. collina J. T. Howell 1934-4-8 11810 Contra Costa 7 miles from Clayton on road to Livermore. Comment
  UC2028312  Collinsia tinctoria Barbara Ertter, Susan D'Alcamo 1998-6-12 16164 Contra Costa North Peak Trail from Devil's Elbow on SE side of Mount Diablo summit. Comment
  UC699678  Collomia heterophylla Basil Bowers 1941-4-12 372 Contra Costa near east end of Moraga Ridge Comment
  UC23157 Image available Convolvulus luteolus var. purpuratus Ivar Tidestrom 1893-4-15 Contra Costa Sheep Island Island, S.Fr. Bay, (Brooks Island) Comment
  UC1050105  Coprosma areolata N. Floy Bracelin 1942-3-22 1985 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1050003  Coprosma lucida N. Floy Bracelin 1942-4-12 2016 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CDA42363  Cordylanthus pilosus subsp. pilosus D. G. Kelch, Vince Guise 2012-7-26 12 .23 Contra Costa Carquinez Strait.; Martinez. Summit of Shady Glen Rd on sandstone outcrop. Comment
  UC691481  Cordylanthus pilosus subsp. pilosus Mary L. Bowerman 1936-8-8 3523 Contra Costa Emmons Canyon (Diablo Stock Farm [Wattis Ranch] Canyon, W fork Mount Diablo Comment
  UC1795844  Cordylanthus pilosus subsp. pilosus Barbara Ertter, M. L. Bowerman, L. Schultheis, Kevin Hintsa 1995-10-22 14537 Contra Costa Three Springs Trail on northeast side of Mt. Diablo, in woods above ranch, north-facing slope. Comment
  UC2028021  Cordylanthus pilosus subsp. pilosus Barbara Ertter 1997-9-14 15815 Contra Costa southwest side of Mount Diablo, Wall Point Road east of crest of ridge. Comment
  UC89470  Coreopsis stillmanii T. S. Brandegee Apr 1889 Contra Costa Antioch Comment
  JEPS50136  Cornus sericea subsp. sericea W. L. Jepson 1914-10-31 6212 Contra Costa Oakland Hills, Moraga Ridge Comment
  JEPS111525  Coronopus didymus D. G. Kelch 2005-5-5 05 .210 Contra Costa Point Pinole - Giant Marsh Giant Salt Marsh 3 Comment
  CDA37420  Cortaderia selloana D. G. Kelch, Mike Perlmutter 2011-9-23 11 .751 Contra Costa Immediately north of Discovery Bay. Comment
  CAS-BOT-BC169515  Corylus cornuta subsp. californica Alice Eastwood 1914-3-6 s.n. Contra Costa Redwood Canyon Comment
  CAS-BOT-BC169517  Corylus cornuta subsp. californica Barrett Anderson 1987-4-29 3477 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD. 125 Comment
  CHSC23342  Cotula coronopifolia Willis Ball 1975-3-26 508 Contra Costa Contra Loma Regional Park. In area #1. On s side of lake ca. 50 yds. e of restroom facilities. 30 Comment
  JEPS111677  Cotula coronopifolia D. G. Kelch 2003-8-13 03 .114 Contra Costa Martinez Marsh 0 Comment
  UC1819010  Cotula coronopifolia Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14230 Contra Costa South side Mount Diablo, Sheepherder Springs complex 1/2 mile north of Curry Point, wet ground in grassland. 487 Comment
  JEPS65181  Crassula aquatica L. R. Heckard 1971-4-15 2486 Contra Costa s. Byron (field at intersection of Holey Rd.) Comment
  JEPS99548  Crassula aquatica Mary Bowerman 1975-9-14 Contra Costa Mount Diablo, Hidden Pond. Comment
  RSA721594  Crassula aquatica Mary L. Bowerman 1975-9-14 s.n. Contra Costa Mount Diablo. Comment
  CAS-BOT-BC427924  Crassula solieri Brandegee No date on label s.n. Contra Costa Antioch Comment
  UC1795806  Crassula tillaea Barbara Ertter, Lisa Schultheis 1995-4-27 14018 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; head of west facing scrub-filled draw (east of golf-course). 182 Comment
  UC2028043  Crassula tillaea Barbara Ertter 1998-3-1 15926 Contra Costa Diablo Foothills Regional Park, Ridge Trail on ridge east of Old Borges Ranch. Comment
  RSA0026175  Crepis bursifolia Barbara Ertter, David Gowen 2012-6-9 21027 Contra Costa South junction of Big Springs Trail with Seaview Trail, southeastern Tilden Park in Berkeley Hills. Comment
  CDA4469  Crepis bursifolia G. D. Barbe 1978-7-2 2405 Contra Costa 2800 block of East Street between Sycamore and Maple Avenue, Concord. 0 Comment
  UC70200  Cressa truxillensis J. Burtt Davy May 1898 Contra Costa region of Mt. Diablo, Danville Comment
  JEPS79011  Croton californicus Edward Lee with Annetta Carter 1935-10-17 1626 Contra Costa Antioch; dunes Comment
  UC1198987  Croton californicus Joseph P. Tracy 1921-5-17 5567 Contra Costa Antioch 30 Comment
  CDA35283  Croton californicus T. C. Fuller 1961-7-6 7368 Contra Costa East of road, south end of Antioch bridge, Antioch. 0 Comment
  CHSC23346  Croton setiger Willis Ball 1975-6-1 531 Contra Costa Contra Loma Regional Park. In area #7 on w side of road ca. 10 yds n of main entrance to park. 60 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
  CAS-BOT-BC361415  Crypsis schoenoides Peter Rubtzoff 1968-9-18 5964 Contra Costa North Gate Road, ca. 5 miles northwest of Mt. Diablo State Park north entrance. Comment
  UC2027935  Crypsis schoenoides Barbara Ertter with Chris Thayer 1996-10-25 15376 Contra Costa West side of Mount Diablo, North Gate Road 3 road miles below Junction near Mineral Spring. Comment
  UC24677  Cryptantha flaccida F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  UC691395  Cryptantha flaccida Mary L. Bowerman 1930-6-7 269 Contra Costa Mount Diablo summit 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
  UC691391  Cryptantha nevadensis var. rigida Mary L. Bowerman 1942-5-24 3841 Contra Costa Mount Diablo; Jim White Trail, W slope of Deer Ridge 853 Comment
  CDA22912  Cucurbita foetidissima D. G. Kelch 2008-9-1 8 .297 Contra Costa Carquinez Strait; North of Waterbird Park along RR tracks. E of Martinez. Comment
  OBI14811  Cuscuta californica Robert F. Hoover 1969-8-29 11565 Contra Costa Raymond Rd and Ames St, Livermore Valley Comment
  CDA20771  Cuscuta japonica J. Deviney 2006-6-7 PDR 1373527 Contra Costa San Francisco Bay Area; El Cerrito Creek banks at S end of Carlsen Blvd., El Cerrito. Crossing Alameda county line into Albany. Comment
Read comments Apr 29 2013
  UC562481  Cuscuta subinclusa Joseph P. Tracy 1932-9-10 10789 C Contra Costa Franklin Canyon 152 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
  CDA4534  Cynara cardunculus T. C. Fuller 1957-10-2 399 -57 Contra Costa Antioch. 0 Comment
  UCD33766  Cynara cardunculus Beecher Crampton 1972-11-21 8888 Contra Costa 2 miles east of Crockett. Comment
  CHSC23352  Cynodon dactylon Willis Ball 1975-5-15 527 Contra Costa Contra Loma Regional Park. In area #1 ca. 3 yds w of restroom facility at s end of reservoir. In lawn by beach area. 30 Comment
  CDA28981  Cynosurus echinatus D. G. Kelch, Suzanne Latham, Matt Beyers 2009-6-3 09 .330-B Contra Costa East Bay.; El Sobrante Ridge at end of Silver Belt Dr. on Miocene chert outcrop. Comment
  JEPS99547  Cynosurus echinatus Mary Bowerman 1975-6-7 Contra Costa Mount Diablo, Big Spring. Comment
  SEINET4343715 Image available Cynosurus echinatus Unknown 1976-6-24 Contra Costa Mount Diablo. Inner Black Hills just west of meridian and south of crest Comment
  SEINET5546123  Cynosurus echinatus E. A. Bernays 1985-1 s.n. Contra Costa Tilden. Comment
  CDA9292  Cyperus difformis D. G. Kelch 2006-9-15 6 .474 Contra Costa Carquinez Strait; Shell Ave., Martinez. Between Pine St. and Harborview Dr. Comment
  CAS-BOT-BC114614  Cyperus eragrostis Thomas Morley 1940-12-3 90 Contra Costa Banks at upper end of San Leandro Lake near mouth of Redwood Creek. 129 Comment
  SEINET190455  Cyperus eragrostis Thomas Morley 1940-12-3 90 Contra Costa Banks at upper end of San Leandro Lake near mouth of Redwood Creek. 130 Comment
  CAS-BOT-BC114618  Cyperus eragrostis Walter Knight; Wayne Roderick; Stephen W. Edwards; B. Doyle 1978-9-19 3264 Contra Costa Browns Island, South Landing. Comment
  UC2070507  Cyperus erythrorhizos Barbara Ertter with Jim Dunne, David Gowen, Lech Naumovich 2009-12-3 19803 Contra Costa Mudflats at upper (south) end of San Pablo Dam Reservoir northwest of Orinda. Comment
  CAS-BOT-BC113834  Cyperus niger John Thomas Howell 1950-7-5 26633 Contra Costa Spring along North Road, Mt. Diablo. Comment
  JEPS107132  Cytisus scoparius Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14678 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay, northeast corner of area. Comment
  SEINET2444146  Datisca glomerata C. Davidson, Barbara Ertter 2010-9-1 11791 Contra Costa Mt. Diablo, Donner Canyon. N side of Mt. Diablo State Park. (Regency Dr. access.). 191 Comment
  JEPS100136  Daucus pusillus G. Smick 2003-5-13 GAS 188 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS111615  Daucus pusillus D. G. Kelch 2004-5-9 04 .206 Contra Costa Crockett - Upper Edwards Canyon, above Crockett Blvd 160 Comment
  JEPS111628  Daucus pusillus D. G. Kelch 2005-5-1 05 .187 Contra Costa Crockett - Edwards Canyon, near top of canyon. 150 Comment
  UC691894  Daucus pusillus Mary L. Bowerman 1931-5-21 878 Contra Costa Curry-Cave Point trail Mt. Diablo; , Curry-Cave Point trail 304 Comment
  UC691895  Daucus pusillus Mary L. Bowerman 1935-5-16 2990 Contra Costa at end of rd. Russelman Park; Mt. Diablo, Russelman Park Comment
  UC32716  Deinandra corymbosa J. Burtt Davy 1896-1-1 Contra Costa Moraga Pass Comment
  CAS-BOT-BC287375  Deinandra corymbosa H. M. Hall 1914-8-23 9862 Contra Costa Giant 22 Comment
  CAS-BOT-BC294017  Deinandra kelloggii Peter Rubtzoff 1951-10-7 s.n. Contra Costa Along lower San Joaquin River, east of Antioch Comment
  CAS-BOT-BC294015  Deinandra kelloggii Brandegee No date on label s.n. Contra Costa Antioch Comment
  CAS-BOT-BC294020  Deinandra kelloggii John Thomas Howell 1930-9-28 5505 Contra Costa 3.2 miles from Byron on Marsh Creek Road Comment
  CAS-BOT-BC294026  Deinandra kelloggii H. M. Hall 1930-6-18 12793 Contra Costa Stockton Ranch, south of Antioch Comment
  CAS-BOT-BC291812  Deinandra lobbii Elsie M. Zeile 1921-9-17 s.n. Contra Costa Rodeo Comment
  UC2029061  Deinandra lobbii Barbara Ertter with Delia Taylor 2003-6-22 18225 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, ridge south of Arata Overlook Trail NE of park headquarters east of Somerville Road. Comment
  JEPS111750  Delairea odorata D. G. Kelch 2005-4-15 05 .140 Contra Costa Rodeo Creek EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump) 220 Comment
  UC1795684  Delphinium californicum subsp. interius Barbara Ertter, Mary L. Bowerman 1994-6-19 12841 Contra Costa Mt. Diablo State Park east of Walnut Creek; Muir Picnic Area on Summit Road, 1005 Comment
  LA207422  Delphinium hansenii H. Lewis; Carl Epling 1947-5-4 703 Contra Costa Marsh Creek Road, 5.8 mi. E of Creek Park Rd Comment
  UC1018264  Delphinium hansenii subsp. hansenii H. Lewis and C. Epling 1947-5-4 703 Contra Costa Marsh Creek Road 5.8 mi e Curry Creek Park Road 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
  UC1819000  Delphinium patens subsp. patens Barbara Ertter, Tom Delendick 1996-5-2 14614 Contra Costa Mount Diablo State Park, Deer Flat Road north of Juniper Camp, at cut through open live oak forest, northwest-facing slope. 853 Comment
  UC9148  Delphinium patens subsp. patens J. Burtt Davy 1896-2-29 1263 Contra Costa Mitchell Canyon, Mt. Diablo Comment
  UC9152  Delphinium patens subsp. patens J. Burtt Davy 1895-4-13 1008 Contra Costa near Lafayette Comment
  LA93067  Delphinium recurvatum Lewis; 1963-4-11 1337 Contra Costa Byron Hot Springs Rd Comment
  CAS-BOT-BC192544  Deschampsia cespitosa subsp. holciformis Walter Knight; Joanne Dean 1978-8-14 3151 Contra Costa Browns Island Comment
  UCD62510  Deschampsia danthonioides P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UCD18454  Deschampsia elongata Glen Holstein 2000-7-27 s.n. Contra Costa SE El Sobrante, NE side of San Pablo Ridge, along trails. Comment
  RSA0029050  Deschampsia elongata Barbara Ertter 1999-6-12 16710 Contra Costa Black Hawk Ridge road on south side of Mount Diablo, road crossing at confluence of NE and E forks of Sycamore Creek. 396 Comment
  UC2028497  Deschampsia elongata Barbara Ertter 1999-6-12 16710 Contra Costa Black Hawk Ridge road on south side of Mount Diablo, road crossing at confluence of NE and E forks of Sycamore Creek Comment
  UC407076  Dicentra chrysantha L. R. Abrams 1921-5-25 8007 Contra Costa halfway-up road Mt. Diablo Comment
  CDA39457  Dichelostemma capitatum D. G. Kelch 2007-3-24 7 .092 Contra Costa Carquinez Strait; Ozol; between Port Costa and Martinez, near old brick quarry. Comment
  UC30118  Dichelostemma capitatum W. C. Blasdale 1896-2-28 Contra Costa Clayton Comment
  CAS-BOT-BC500088  Dichelostemma capitatum Miss E. Cannon 1891-5-1 s.n. Contra Costa Orinda Park Comment
  CAS-BOT-BC500090  Dichelostemma capitatum Alice Eastwood 1921-4-10 10195 Contra Costa Willows Comment
  HSC101953  Dichelostemma capitatum subsp. capitatum Nikolaus Gillen, Michelle Bihler 2014-3-20 4 Contra Costa Mount Diablo State Park. Back Creek Trail. 211 Comment
  RSA367471  Dichelostemma capitatum subsp. capitatum H. de Forest 1930-4-6 s.n. Contra Costa [No locality information provided] Comment
  CAS-BOT-BC500922  Dichelostemma volubile W. R. Dudley 1893-1-1 s.n. Contra Costa Mount Diablo Comment
  CDA1975  Digitaria sanguinalis D. G. Kelch, A. G. Murdock 2005-6-27 5 .39 Contra Costa Carquinez Strait; 6th Street at Lillian Street, Crockett. Comment
  CDA36457  Dimorphotheca sinuata Deviney 2011-9-1 PDR# 1641230 Contra Costa Brentwood; Balfour Rd. near Fairview Rd. 0 Comment
  RSA0068054  Diplacus aurantiacus Katie Gallagher, Nick Jensen 2014-4-26 198 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  CAS-BOT-BC151950  Diplacus douglasii John Thomas Howell 1941-4-6 16177 Contra Costa Near Deer Flat, Mt. Diablo Comment
  RSA697529  Dipsacus fullonum J. Vlahos 1934-8-1 s.n. Contra Costa Contra Costa County Hills. Comment
  RSA40099  Dirca occidentalis L. S. Rose 1948-3-9 s.n. Contra Costa Head of Wildcat Creek, Berkeley Hills 457 Comment
  UC723819  Dirca occidentalis Joseph Andorfer Ewan 1934-3-10 8643 Contra Costa creek bottom flat 2 mi below Orinda road bridge; Wildcat Canyon Comment
  UCR143109  Dirca occidentalis L. S. Rose 1948-3-9 48011 Contra Costa San Francisco Bay Region, head of Wildcat Canyon, Berkeley hills 457 Comment
Read comments Feb 14 2006
  UC1055905  Disocactus ackermannii N. Floy Bracelin 1944-6-25 1339 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  UC692001  Disporum hookeri Mary L. Bowerman 1931-3-22 606 Contra Costa Mount Diablo, e fork Alamo Canyon Alamo Canyon; Mount Diablo, Alamo Canyon Comment
  UC792336  Disporum hookeri J. A. Rattenbury 1948-4-13 111 Contra Costa on s side of highway above creek 1/2 mi e of Oakland Tunnel 213 Comment
  RSA170194  Disporum hookeri var. hookeri J. Rattenbury 1948-4-13 111 Contra Costa On south side of highway above creek, half mile east of Tunnel from Oakland; 213 Comment
  RSA0038323  Distichlis spicata A. A. Beetle 1752 Contra Costa Point Richmond on San Francisco Bay. Comment
  SD175796  Dittrichia graveolens D. G. Kelch 2006-9-25 06 476 Contra Costa Marsh 1.0 km west of Pacheco Slough. 2 Comment
  JEPS128778  Dittrichia graveolens Kevin Hintsa 1997-9-30 Contra Costa Mount Diablo State Park, Live Oak Campground. Comment
  UCD131226  Dittrichia graveolens Tina Carlsen; R. E. Preston 1996-10-9 s.n. Contra Costa on east side of Greenville road, around 0.5 mile south of I-580. 182 Comment
  UC1039585  Dodecatheon clevelandii subsp. patulum Herbert L. Mason 1925-2-28 1260 Contra Costa 1/2 mi e Rodeo; e of Rodeo Comment
  UC766267  Dodecatheon clevelandii subsp. patulum R. F. Hoover 1938-2-21 2749 Contra Costa Byron Hot Springs Comment
  UC1046584  Dodecatheon hendersonii Alex D. Hawkes and R. Bacigalupi 1951-4-22 4777 Contra Costa State Rd. #4 near Mt. Diablo (along Marsh Creek); , near Mt. Diablo Comment
  JEPS5033  Downingia insignis Ira L. Wiggins 1930-4-17 4570 Contra Costa 0.25 mi s Byron Comment
  UC1026379  Downingia insignis John Thomas Howell 1953-4-26 28935 Contra Costa between Byron and Byron Hot Springs Comment
  UC1051468  Downingia insignis Herbert L. Mason 1952-4-14 14267 Contra Costa 3.5 mi s Byron Comment
  POM181468  Downingia insignis I. L. Wiggins 1930-4-17 4570 Contra Costa 1/4 mi. S. of Byron. Comment
  RSA424714  Downingia insignis Aaron Liston 1987-4-27 670 -1 Contra Costa 3 miles S of Byron. Comment
  SEINET3147638  Downingia ornatissima L. S. Rose 1940-4-30 40258 Contra Costa 4 mi S of Antioch 30 Comment
  UC924240  Downingia ornatissima var. eximia H. S. Reed 1940-4-30 357 Contra Costa 4 mi s Antioch 15 Comment
  JEPS14440  Downingia pulchella W. L. Jepson May 23 1891-May 24 1891 21212 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC159645  Drymocallis glandulosa var. glandulosa David D. Keck 1941-6-5 5308 Contra Costa Berkeley Hills, Fish Creek Road, 1/4 mi. W. of east portal of Broadway Tunnel 335 Comment
  CAS-BOT-BC70864  Dryopteris arguta Mary L. Bowerman 1930-6-18 342 Contra Costa Dan Cook Canyon Comment
  JEPS111938  Dryopteris arguta D. G. Kelch 2004-9-2 04 .340 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Martinez (Ozol) CA East of Ozol 25 Comment
  UC692113  Dryopteris arguta Mary L. Bowerman 1930-6-18 342 Contra Costa Dan Cook Canyon; Mt. Diablo Comment
  JEPS49894  Dudleya cymosa subsp. paniculata Elizabeth Ferguson 1918-1-1 Contra Costa Donner Canyon Mount Diablo Comment
  UC692560  Dudleya cymosa subsp. paniculata Mary L. Bowerman 1931-6-17 925 Contra Costa e side Riggs Canyon Comment
  UC1606408  Dudleya farinosa Barbara Ertter 1992-7-25 11261 Contra Costa s end Point Richmond (near Brickyard Landing, above rr tracks) Comment
  CAS-BOT-BC197108  Echinochloa crus-galli John Thomas Howell; Gordon H. True 1972-6-29 48942 Contra Costa Along Byron Hot Springs Road where water has stood, southeast of Byron 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
  SEINET245836 Image available Echinochloa crus-galli Beecher Crampton 1965-9-29 7527 Contra Costa 2 miles south of Brentwood, jct. Of Walnut ave. and Marsh Creek rd., Comment
  CDA15281  Echinochloa crus-pavonis G. F. Hrusa, D. Crowe, R. York 1998-7-17 14719 Contra Costa Sacramento Delta; Scattered in dry areas of now dry drainage/wash through disturbed grasslands at E end of Dow Chemical property. Annual, culms gen taller than this. Comment
  UCD37369  Echinochloa crus-pavonis Beecher Crampton 1959-9-3 5451 Contra Costa Contra Costa County, 2 miles north of city of Orinda, Bear Creek, East Bay Municipal Utilities District Project. Comment
  UC2032845  Echium candicans Doran, Andrew Scott 2012-3-20 716 Contra Costa South part of Brooks Island, old quarry near gravel conveyer belt and grind house. Comment
  CAS-BOT-BC197293  Ehrharta erecta Catherine Best 1990-6-3 s.n. Contra Costa On Ralston Ave. in the hills above Richmond Comment
  UC1949380  Eichhornia crassipes Barbara Ertter 1990-9-16 9642 Contra Costa Junction of Cypress Road & Jersey Island Road E of Oakley Comment
  UC692626  Elatine californica Mary L. Bowerman 1935-7-22 3186 Contra Costa s side Meridian Peak (Hidden Pond); Mount Diablo Comment
  JEPS45767  Elatine heterandra W. L. Jepson 1891-5-22 13954 Contra Costa Walnut Creek Comment
  UC1949081  Eleocharis acicularis Barbara Ertter with Jim Dunne, David Gowen, Lech Naumovich 2009-12-3 19802 Contra Costa at upper (south) end of San Pablo Dam Reservoir northwest of Orinda; lower areas where recently inundated Comment
  JEPS99557  Eleocharis macrostachya Mary Bowerman 1977-6-11 Contra Costa Mount Diablo, Pine Creek at S end of Castle Rock Park. 182 Comment
  UC1618280  Eleocharis macrostachya Barbara Ertter, Brad Olson 1991-9-28 10836 Contra Costa S end of San Pablo Reservoir, between Orinda and El Sobrante 91 Comment
  SEINET10747423  Eleocharis macrostachya Barbara J. Ertter 1991-9-28 Ertter 10836 Contra Costa San Pablo Reservoir between Orinda and El Sobrante, dried mud flats at S en of reservoir, 91 Comment
  UC2028433  Eleocharis parishii Barbara Ertter with Chris Thayer 1996-10-25 15350 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothill Regional Park Comment
  CAS-BOT-BC112218  Eleocharis rostellata Miss Mary Leolin Bowerman 1967-7-19 37175 Contra Costa NW end of Shell Ridge, just S of the highway (Heather Farm), by sulphurous stream. Comment
  UC1950090  Elodea canadensis Barbara Ertter with Brad Olson 1991-9-28 10841 Contra Costa at S end of reservoir; San Pablo Reservoir between Orinda and El Sobrante Comment
  POM357109  Elymus X gouldii Glenn A. Gorelick 1967-5-13 s.n. Contra Costa Point Richmond Comment
  SEINET252196  Elymus glaucus David Amme 1988-8-16 Contra Costa Kensington Comment
  UC692430  Elymus glaucus Mary L. Bowerman 1935-5-3 2964 Contra Costa Mount Diablo; Sloan Rd 487 Comment
  UC692431  Elymus glaucus Mary L. Bowerman 1935-5-16 3009 Contra Costa behind Gabriel-Hinks' (e side of peak); Mount Diablo, North Peak 289 Comment
  UC691206  Elymus glaucus Mary L. Bowerman 1933-5-3 1988 Contra Costa Mountain Springs Canyon Mount Diablo (at trough for deer (later Pioneer fire rd was built across canyon at this spot), 3 ft from stream) Comment
  CDA6126  Elymus multisetus D. G. Kelch 2007-5-12 7 .291 Contra Costa Carquinez Strait; Franklin Ridge, S of Hwy 4 at McEwen Rd. Comment
  UCD62489  Elymus multisetus P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UCD62515  Elymus multisetus Beecher Crampton 1956-5-14 3386 Contra Costa Between the old coal mining towns of Somersville and Nortonville, 6.7 miles southwest of Antioch. Comment
  JEPS99518  Elymus trachycaulus Mary Bowerman 1977-7-25 Contra Costa Mount Diablo, North Peak. Comment
  UC1618362  Elytrigia intermedia subsp. intermedia Barbara Ertter with Lynne Hosley and Sid Cowles 1992-6-7 11084 Contra Costa along raod to quarry e of Round Top (Sibley Volcanic Regional Preserve in Oakland Hills); Oakland Hills, Sibley Volcanic Regional Preserve Comment
  UC421666  Epilobium campestre John Thomas Howell 1929-7-20 4331 Contra Costa Pittsburg Comment
  CAS-BOT-BC166166  Epilobium canum subsp. canum John Thomas Howell 1925-11-1 1536 Contra Costa Moraga Ridge, Oakland Hills Comment
  UC1122299  Epilobium canum subsp. canum R. W. Lundh 1932-9-22 167 Contra Costa 1 mi sw Mt. Diablo; Mt. Diablo Quadrangle 914 Comment
  UC521671  Epilobium canum subsp. canum Joseph Andorfer Ewan 1933-10-15 8023 Contra Costa water tank at Indian Ceremonial Spr. Mt. Diablo Comment
  CAS-BOT-BC166827  Epilobium canum subsp. latifolium A. D. E. Elmer 1903-7-1 4620 Contra Costa Mount Diablo Comment
  CAS-BOT-BC166825  Epilobium canum subsp. latifolium M. K. Curran 1883-10-1 s.n. Contra Costa [Marsh's] Marsh Creek Comment
  UC1613486  Epilobium ciliatum subsp. ciliatum Charles M. Belshaw 1936-12-13 2746 Contra Costa near Berkeley Country Club (North Coast Range); North Coast Range 152 Comment
  UC1818995  Epilobium ciliatum subsp. ciliatum Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14632 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
  UC2029016  Epipactis helleborine Barbara Ertter 1999-7-17 16769 Contra Costa Tilden Regional Park, trail to Jewel Lake paralleling Wildcat Creek, through thick woodland growth. Comment
  UC692135  Equisetum X ferrissii Mary L. Bowerman 1938-9-17 3720 Contra Costa Willow Spring; Mt. Diablo Comment
  UC1789099  Equisetum arvense Barbara Ertter 2005-8-18 18637 Contra Costa San Pablo Reservoir in East Bay Hills, east of San Pablo Dam Road between Richmond and Orinda (EBMUD water storage from Mokelumne River watershed); mudflats left by receding reservoir (being drained for seismic work on dam). Comment
  UC692076  Equisetum hyemale subsp. affine Mary L. Bowerman 1935-3-16 2744 Contra Costa e fork Arroyo del Cerro (10 ft below spring); Mt.Diablo 289 Comment
  UC692134  Equisetum laevigatum Mary L. Bowerman 1931-5-16 864 Contra Costa Lower Silver Spring; Mt. Diablo 853 Comment
  UC692131  Equisetum telmateia subsp. braunii Mary L. Bowerman 1939-3-31 3737 Contra Costa Johnny Walker Spring Mt. Diablo 731 Comment
  UC2029181  Equisetum telmateia subsp. braunii Barbara Ertter with Alan Prather 2003-6-7 18202 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, creek alongside west end Stone Corral Trail, south of Highland Ridge Trail junction. Comment
  JEPS120294 Image available Eriastrum ertterae David Gowen 2005-7-1 471 Contra Costa Lime Ridge Open Space. South of summit near power line area. Comment
  CAS-BOT-BC514609  Eriastrum pluriflorum subsp. pluriflorum T. S. Brandegee 1883-6-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC131505  Ericameria arborescens Mary L. Bowerman 1932-9-17 1583 Contra Costa Donner Canyon, west fork: Bank between upper forks 304 Comment
  UC61518  Ericameria arborescens A. B. Simonds Contra Costa Comment
  CAS-BOT-BC287534  Ericameria linearifolia L. R. Abrams 1921-5-25 8006 Contra Costa Mt Diablo, middle altitudes Comment
  JEPS31296  Ericameria linearifolia W. L. Jepson 1891-5-23 Contra Costa Mt. Diablo Comment
  UC1543101  Ericameria linearifolia Donald G. Nelson 1937-4-18 503 Contra Costa on March Creek Road in canyon between Clayton and Byron (near stream along highway, dry sandy clearing near wood) Comment
  UCD131397  Ericameria linearifolia R. A. Pendleton 1934-3-20 s.n. Contra Costa Mount Diablo. Comment
  CAS-BOT-BC287526  Ericameria linearifolia Mary L. Bowerman 1938-5-28 3649 Contra Costa Mount Diablo. Silver Creek Nook (North Rd) 640 Comment
  SEINET10617379  Ericameria linearifolia John T. Middleton 1936-4-18 Middleton 137 Contra Costa Marsh Creek Rd. - 8 mi. east of Clayton. Comment
  UC135196  Erigeron foliosus var. franciscensis Katharine Brandegee 1907-6-16 Contra Costa hills bet. Antioch and Marsh Creek Comment
  UC1818984  Erigeron foliosus var. franciscensis Barbara Ertter 1994-6-26 12874 Contra Costa South of Point Molate Beach Park in west Richmond north of San Rafael Bridge, perennial grassland on bluff above beach between park and Point Castro. Comment
  UC1543059  Erigeron philadelphicus var. philadelphicus Donald G. Nelson 1938-4-24 566 Contra Costa 1 mi n Mount Diablo (Marsh Creek Highway) Comment
  CDA37271  Eriobotrya japonica D. G. Kelch 2011-3-5 11 .033 Contra Costa Carquinez Strait Region; Richmond. Chevy s Hill. Comment
  UC1779709  Eriobotrya japonica Rudolf Schmid 1997-5-21 1997 -11 Contra Costa Hillside Natural Area, El Cerrito; some distance NW of King Ct. entrance, near W side of road, in drainage gully north of the Salix-Corylus grove. 126 Comment
  CAS-BOT-BC224220  Eriodictyon californicum Mary L. Bowerman 1932-9-3 1530 Contra Costa Mount Diablo. Muir Area: Burn (1931) Comment
  UC126026  Eriodictyon californicum Katharine Brandegee June, 1908 Contra Costa Antioch Comment
  CAS-BOT-BC216075  Eriodictyon californicum W. W. Carruth 1901-5-1 s.n. Contra Costa Moraga Valley Comment
  RSA136732  Eriogonum J. T. Howell 1955-8-24 30903 Contra Costa Near summit of south peak, Mt. Diablo 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
  UC1789160  Eriogonum fasciculatum Barbara Ertter 2001-9-3 17807 Contra Costa Sibley Volcanic Regional Park, area excavated for water tank on west side of Round Top, basaltic. Comment
  CAS-BOT-BC250381  Eriogonum gracile Mary L. Bowerman 1932-8-27 1524 Contra Costa Mount Diablo. South of Turtle Rock Comment
  CAS-BOT-BC250383  Eriogonum gracile John Thomas Howell 1932-10-2 10789 Contra Costa Marsh Creek Road southwest of Brentwood Comment
  UC85768  Eriogonum gracile var. gracile T. S. Brandegee 1890-1 Contra Costa Mt. Diablo Comment
  JEPS57048  Eriogonum luteolum var. caninum W. L. Jepson 1894-10-1 Contra Costa Oakland Hills; w slope, towards Redwood Peak 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
  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-BC268910  Eriogonum nudum var. auriculatum W. H. Brewer 1861-9-25 841 Contra Costa Near Monte [Mount] Diablo, Mission San Jose Comment
  UC1926783 Image available Eriogonum nudum var. psychicola Barbara Ertter 1997-8-18 15766 Contra Costa Contra Costa County: Antioch Dunes on San Joaquin River east of Antioch. Comment
  CAS-BOT-BC33739  Eriogonum nudum var. psychicola Barbara Ertter 1997-8-18 15766 Contra Costa Antioch Dunes (USFWS National Wildlife Refuge) Comment
  CAS-BOT-BC267447  Eriogonum truncatum M. K. C. 1886-5-1 s.n. Contra Costa Antioch Comment
  UC526210  Eriogonum truncatum John Thomas Howell 1934-4-8 11816 Contra Costa 10 mi on Marsh Creek Road Clayton Comment
  CAS-BOT-BC267873  Eriogonum umbellatum var. bahiiforme Mary L. Bowerman 1930-6-14 328 Contra Costa Mount Diablo Comment
  CAS-BOT-BC262349  Eriogonum vimineum Mary L. Bowerman 1931-9-12 1038 Contra Costa Mount Diablo. Mitchell Canyon, spur jutting into west fork 838 Comment
  CAS-BOT-BC298509  Eriophyllum confertiflorum H. E. McMinn 1923-6-18 1152 Contra Costa Horn Canon Comment
  POM301036  Eriophyllum confertiflorum Mary L. Bowerman 1933-6-3 2224 Contra Costa 2 miles by road from North Gate Comment
  UC691731  Eriophyllum confertiflorum var. confertiflorum Mary L. Bowerman 1933-6-3 2225 Contra Costa 2 mi by road from North Entrance; Mount Diablo Comment
  CAS-BOT-BC300924  Eriophyllum jepsonii Mary L. Bowerman 1935-5-30 3087 Contra Costa Mount Diablo. Eagle Point ridge 304 Comment
  CAS-BOT-BC300968  Eriophyllum lanatum var. achilleoides John Thomas Howell 1923-11-12 244 Contra Costa Mt. Diablo Comment
  UC507130  Eriophyllum lanatum var. achilleoides Lincoln Constance 1933-6-25 E 98 Contra Costa summit Mount Diablo 1158 Comment
  UC507131  Eriophyllum lanatum var. achilleoides Lincoln Constance 1933-6-25 E 99 Contra Costa just below summit on east slope Mount Diablo 1066 Comment
  UC691662  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1935-5-30 3097 a Contra Costa Eagle Point ridge = between the two n ridges which converge at Twin Peaks; Mt. Diablo, Eagle Point ridge 350 Comment
  UC691730  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1933-6-7 2266 Contra Costa Large w fork of Curry Cave canyon; Mount Diablo, Curry Cave canyon Comment
  CAS-BOT-BC300964  Eriophyllum lanatum var. achilleoides L. Constance 1933-6-25 E 100 Contra Costa N. slope near the summit of Mt. Diablo 1097 Comment
  CAS-BOT-BC300971  Eriophyllum lanatum var. achilleoides H. E. McMinn 1922-6-30 98 Contra Costa On way up Mt. Diablo, less 1/2 way up Comment
  CAS-BOT-BC300973  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1935-5-22 3065 Contra Costa Mount Diablo. Most westerly of the two ridges which converge at Twin Peaks (Eagle Point ridge) 365 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
  UC1252143  Eriophyllum staechadifolium Dr. Jerry Powell 1964-6-7 412 Contra Costa nw Richmond; Point Molate Comment
  UC692708  Erodium botrys Mary L. Bowerman 1931-3-14 571 Contra Costa Windy Point Mount Diablo Comment
  JEPS107117  Erodium brachycarpum Barbara Ertter, Mary Bowerman et al. 1995-5-7 14044 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, grassy flat, roadside vegetation, clay substrate. Comment
  UC1130297  Erodium cicutarium R. C. Wilson 1935-2-26 113 Contra Costa Somersville Mt. Diablo Quad. 289 Comment
  UC2032834  Erodium cicutarium Doran, Andrew Scott 2012-3-20 704 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  UCSB12514  Erodium cicutarium Grah, Nancy 1962-4-14 Contra Costa 0.6 mile north of Tarry Lane on Tappan Lane; Orinda 243 Comment
  UC1130310  Erodium macrophyllum C. M. Belshaw 1936-5-15 2126 Contra Costa 1.75 mi ne Somerville; Mt. Diablo Quad. 152 Comment
  UC614848  Erodium macrophyllum Beryl O. Schreiber 1932-3-27 Contra Costa Mountain House Comment
  JEPS15974 Image available Eryngium aristulatum var. aristulatum W. L. Jepson 1895-9-7 14275 Contra Costa e of Bald Peak; Orinda 121 Comment
  JEPS2589 Image available Eryngium aristulatum var. aristulatum W. L. Jepson 1895-9-7 14275 Contra Costa Orinda Park; ; Orinda Park, Contra Costa Co. Comment
  UC1191950  Eryngium aristulatum var. aristulatum Peter Kamb, Francia Chisaki, and S. Galen Smith 1951-4-14 1954 Contra Costa 7 mi. n. Walnut Creek (e. of Hwy. 21, 0.2 mi. s. intersection w/ Hwy. 4) Comment
  UC1487296  Eryngium aristulatum var. aristulatum Yusuf Sheikh 1975-7-8 600 Contra Costa on State Hwy. 4 0.7 mi. w. of junction w/ Railroad Ave. Comment
  UC21040  Eryngium aristulatum var. aristulatum Jos. Burtt Davy 1900-6-7 6660 Contra Costa near Martinez Comment
  RSA136734  Eryngium aristulatum var. aristulatum J. T. Howell 1955-8-24 30899 Contra Costa Near Diablo Country Club Comment
  JEPS111065  Eryngium armatum Lee Echols 2003-6-2 s.n. Contra Costa N of Lark Drive in central portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  JEPS121010  Eryngium armatum D. G. Kelch 2007-6-16 07 .464 Contra Costa Pt. Pinole, N spur of Park, near shore 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
  CHSC67628  Eryngium vaseyi James D. Jokerst 1989-3-29 3072 Contra Costa Byron Hot Springs area NE of Livermore, adjacent to terrace S of ephemeral creek. Comment
  UC1122965  Eryngium vaseyi B. Schreiber 1937-6-12 2400 Contra Costa Byron Byron Quad., Byron 15 Comment
  UC1487327  Eryngium vaseyi Yusuf Sheikh 1974-5-5 587 B Contra Costa 2.1 mi. s.e. of Byron Post sign on rd. J4 Byron (3.1 mi. s.e. of intersection with Camino Diablo) Comment
  CAS-BOT-BC40763  Erysimum capitatum John Thomas Howell 1926-3-7 1672 Contra Costa Mount Diablo. Near the summit on south side. Comment
  NY32657  Erysimum capitatum subsp. angustatum A. A. Heller 1908-4-16 8898 Contra Costa Sand hills east of Antioch. 22.9 Comment
  RSA101891  Erysimum capitatum var. capitatum G. B. Rossbach, Ruth P. Rossbach 1938-6-5 859 Contra Costa Near summit of Mt Diablo. Comment
  SEINET5342636  Erysimum capitatum var. capitatum C. M. Fryer 1948-4-11 4 Contra Costa On Stipa hillside in shade. Mt. Diablo. 427 Comment
  CAS-BOT-BC402992  Eschscholzia californica L. R. Abrams 1921-5-25 8008 Contra Costa Near summit of Mt Diablo Comment
  UC1819026  Eschscholzia californica Barbara Ertter, Chris Thayer 1995-4-25 13996 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Black Hawk Ridge Rd. on north side Black Hawk Ridge. 548 Comment
  HSC16752  Eschscholzia californica Greg Bos 1963-3-15 39 Contra Costa Albany Hill, Albany 15 Comment
  UCD95304  Eschscholzia californica Jennifer Davies 1982-4-11 1 Contra Costa 0.5 mile west of Park HQ on Northgate Road, Mt. Diablo. 670 Comment
  UC1789210  Eucalyptus globulus Barbara Ertter 2002-5-11 17840 Contra Costa lower Emmons Canyon just outside of Mount Diablo State Park boundary. Comment
  UC2061495  Eucalyptus sideroxylon Dean G. Kelch 2016-5-27 16 .140 Contra Costa Miller-Knox Hill. Comment
  JEPS1714  Eucrypta chrysanthemifolia var. chrysanthemifolia Mary L. Bowerman 1932-3-6 1102 Contra Costa Sycamore Canyon Sycamore Canyon, Mount Diablo; Mount Diablo Comment
  JEPS1715  Eucrypta chrysanthemifolia var. chrysanthemifolia Mary L. Bowerman 1931-4-4 652 Contra Costa 4.5 mi from Mount Diablo, West road entrance; Mount Diablo 396 Comment
  UC691713  Eucrypta chrysanthemifolia var. chrysanthemifolia Mary L. Bowerman 1932-5-6 1408 Contra Costa Mitchell Canyon floor; Mount Diablo 243 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
  UCD142623  Euphorbia maculata Terri Williamson 1990-5-22 67 Contra Costa Pleasant Hill, 212 Poshard St. 12 Comment
  UC1276068  Euphorbia oblongata T. C. Fuller 1959-6-25 2679 Contra Costa ca 4 mi w Martinez; Alhambra Valley Comment
  UC2028283  Euphorbia oblongata Barbara Ertter 1998-6-20 16245 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, roadside near Old Borges Ranch. Comment
  UCR99454  Euphorbia oblongata L. C. Wheeler 1958-8-26 7446 Contra Costa c. 2 mi. SW of Martinez, 0.3 mi. NW of Glen Frazer on Santa Fe; apparently Franklin Canyon, 1.7 mi. west of Martinez at limit on California Route 4 Comment
  RSA119277  Euphorbia oblongata T. C. Fuller 1958-7-30 s.n. Contra Costa Contra Costa County: bench above creek and along roadside, Hwy 4, 3 miles W of Martinez Comment
  UC2062608  Euphorbia spathulata Barbara Ertter with David Gowen, Mike Park, Wilde Legard 2004-4-13 18345 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, east of River View Loop Trail, over saddle east of park headquarters at Sidney Flat Comment
  UC2062607  Euphorbia spathulata Barbara Ertter with Dan Norris 2001-4-8 17590 Contra Costa Lime Ridge Open Space east of Walnut Creek. Comment
  CDA4939  Euthamia occidentalis D. G. Kelch 2006-9-15 6 .473 Contra Costa Carquinez Strait; Martinez. Waterfront Rd. Marina Dr. , 100 m. W of Pacheco Slough. Comment
  CAS-BOT-BC310643  Euthamia occidentalis Vincent Jones 1920-8-29 s.n. Contra Costa Orwood Comment
  UC692287  Festuca californica Mary L. Bowerman 1931-5-2 788 Contra Costa n end Eagle Point ridge; Mount Diablo Comment
  POM300669  Festuca californica var. californica Mary L. Bowerman 1931-4-25 757 Contra Costa Mount Diablo, near junction of South and West roads. Comment
  UC691232  Festuca elmeri Mary L. Bowerman 1935-5-3 2963 Contra Costa Sloan Road Mount Diablo 487 Comment
  UC2028533  Festuca microstachys Barbara Ertter with Tony Morosco 1998-4-12 15989 Contra Costa Base of Mount Olympia on north side of Mount Diablo. Comment
  UC691811  Foeniculum vulgare Mary L. Bowerman 1931-10-5 1052 Contra Costa Marsh Creek Rd. near saddle by dry streambed Mt. Diablo 274 Comment
  CDA8373  Frankenia salina A. G. Murdock, D. G. Kelch 2005-3-24 319 Contra Costa Carquinez Strait; Point Pinole. Comment
  UC1753841  Fraxinus dipetala Annetta M. Carter, Leo Bowerman 1935-6-1 875 Contra Costa Mt. Diablo. NW facing slope, W side of main peak. 1005 Comment
  UC1795649  Fraxinus dipetala Barbara Ertter, Brad Olson, Diane Lake, Seth Adams, et al. 1994-9-11 13081 Contra Costa Chaparral Springs addition to Mt. Diablo State Park, north side of Marsh Creek Road at high point southeast of Clayton, open oak woodland (Canyon live oak, blue oak, buckeye); north facing slope with local grove of Fraxinus, Aesculus, toyon. Comment
  UC1606339  Fraxinus latifolia Barbara Ertter, Brad Olson 1991-9-28 10844 Contra Costa between Orinda and El Sobrante (s end of San Pablo Reservoir); San Pablo Reservoir 94 Comment
  CDA37274  Fraxinus velutina D. G. Kelch 2011-3-31 11 .077 Contra Costa Carquinez Region; Richmond; Hilltop Lake Park. Comment
  UC692004  Fritillaria affinis Mary L. Bowerman 1933-5-9 2053 Contra Costa Mount Diablo, Mountain House Canyon Mountain House Canyon; Mount Diablo, Mountain House Canyon 670 Comment
  SEINET12045027  Fritillaria affinis L. S. Rose 1934-1 34047 Contra Costa Mt. Diablo Comment
  JEPS61883  Fritillaria agrestis Miss Linda Gehringer 1915-3-27 Contra Costa east side of Mount Diablo Mount Diablo Comment
  UCD84953  Fritillaria agrestis Chuck Hughes 2010-4-1 225 Contra Costa About 0.6 mile east of Los Vaqueros Road. 305 Comment
  UCR160111  Fumaria capreolata M. I. Wibawa 2003-3-1 331 Contra Costa San Francisco Bay Region, along sidewalk on corner of Junction Ave. and Hagen Blvd., El Cerrito 44 Comment
  JEPS75515  Galium aparine P. F. Yorks 1976-4-11 505 a Contra Costa on Hampton Rd ca 1.4 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Preserve Comment
  UC691538  Galium aparine Mary L. Bowerman 1930-6-10 310 Contra Costa summit Mount Diablo Comment
  LA208411  Galium californicum Joseph Andorfer Ewan; 1935-5-26 9299 Contra Costa Tufts in rock crevices and about outcrops. E slope Bald Peak, San Pablo Ridge 548 Comment
  UC2027989  Galium murale Barbara Ertter 1998-5-3 16031 Contra Costa Pine Ridge summit of Wall Point Road at southwest base of Mount Diablo. Comment
  UC2027970  Galium parisiense Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15660 Contra Costa North base of Mount Diablo, lower end of Mitchell Canyon. Comment
  JEPS41059  Galium porrigens var. porrigens Rimo Bacigalupi and L. R. Heckard 1965-5-11 9086 Contra Costa se Richmond; San Francisco Bay, Brooks Island 30 Comment
  UC697203  Gamochaeta ustulata Mary L. Bowerman 1938-6-2 3654 Contra Costa 100 yds n Rock City Camp; Mount Diablo, Dan Cook Canyon 548 Comment
  CAS-BOT-BC303366  Gamochaeta ustulata Mary L. Bowerman 1942-6-1 3846 Contra Costa Mt Diablo. Lower Rock City Camp Comment
  JEPS77009  Garrya elliptica Robert M. Lloyd 1963-3-17 2137 Contra Costa across from 7090 Skyline Drive (0.5 mi e of intersection of Grizzly Peak Road and Skyline Drive, on Skyline Drive, Huckleberry Trail); Skyline Drive, Huckleberry Trail Comment
  UC21587  Garrya elliptica Willis L. Jepson 1892-3-5 Contra Costa Redwood Peak Comment
  UC634816  Garrya elliptica H. L. Mason 1925-9-12 2223 Contra Costa head of San Leandro Creek Canyon; Oakland Hills Comment
  UC692505  Garrya elliptica Mary L. Bowerman 1933-3-11 1747 Contra Costa Fossil Ridge Mount Diablo (knoll s of 1778 point, of crest of hill) 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-BC200631  Garrya elliptica H. E. McMinn 1925-1-30 1398 Contra Costa Thornhill Gulch. Oak. [Oakland] Hills Comment
  RSA721733  Garrya flavescens subsp. flavescens Barbara Ertter, Holly C. Forbes 1996-2-11 14549 Contra Costa North side Mount Diablo; Murchio Gap on Median Ridge Road. 732 Comment
  SEINET3558664 Image available Garrya fremontii Lewis S. Rose 1934-2-28 34041 Contra Costa Summit Mount Diablo. Comment
  CAS-BOT-BC282611  Gastridium phleoides Mary L. Bowerman 1935-7-22 3191 Contra Costa Hidden Pond, Mount Diablo Comment
  RSA691922  Gaura parviflora Barbara Ertter 1991-9-22 10827 Contra Costa Point Isabel Regional Shoreline in southwest El Cerrito, along abandoned railroad right-of-way, near asphalt heap Comment
  CDA42355  Genista monspessulana D. G. Kelch, Vince Guise 2012-7-26 12 .241 Contra Costa Wildcat Canyon Park, Alvarado Unit. Comment
  HSC14658  Genista monspessulana D. A. Shally 1965-4-18 39 Contra Costa Canyon, 1 mi. N of Canyon Store Comment
  JEPS111976  Geranium dissectum D. G. Kelch 2004-4-3 04 .49 Contra Costa Martinez - Vine Hill 44 Comment
  UC1555366  Geranium dissectum Jerry Powell 1988-5-18 1532 Contra Costa w Richmond Point Molate Comment
  UC2032836  Geranium dissectum Doran, Andrew Scott 2012-3-20 706 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  UC2028999  Gilia achilleifolia Barbara Ertter 2000-3-30 16918 Contra Costa North side of Mount Diablo, open rocky area ca halfway down Back Canyon Trail from Murchio Gap. Comment
  JEPS69431  Gilia achilleifolia subsp. achilleifolia W. L. Jepson 1899-4-19 15066 Contra Costa Las Trampas Ridge Comment
  UC691599  Gilia achilleifolia subsp. achilleifolia Mary L. Bowerman 1935-5-8 2970 Contra Costa Muir Area, Mount Diablo Mount Diablo, Muir Area Comment
  UC691669  Gilia achilleifolia subsp. achilleifolia Mary L. Bowerman 1932-5-6 1416 Contra Costa floor Mitchell Canyon; Mount Diablo, Mitchell Canyon 213 Comment
  JEPS108360  Gilia achilleifolia subsp. achilleifolia David Gowen 2005-4-11 230 Contra Costa Mt. Diablo State Park. Below Devils Elbow in the upper part of Rhine Canyon drainage. 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
  UC30194  Gilia achilleifolia subsp. multicaulis H. N. Bolander 1866-1 6400 Contra Costa Monte Diablo Comment
  UC402614  Gilia capitata subsp. staminea C. L. Swenson April, 1930 Contra Costa Antioch Comment
  RSA79448  Gilia capitata subsp. staminea E. K. Crum 1936-4-5 1745 Contra Costa South Coast Ranges, 2 miles W of Bryon 46 Comment
  POM223334  Gilia clivorum L. S. Rose 1935-5-16 351 75 Contra Costa Mt. Diablo. Comment
  UCSB5069  Gilia clivorum Kamb, Peter; Chisaki, Francia 1950-3-18 Contra Costa Head of Pine Canyon; Mount Diablo 533 Comment
  UCR124271  Gilia multicaulis L. S. Rose 1934-3-21 34067 Contra Costa 3-6 mi east of Clayton Comment
  UC691597  Gilia tricolor subsp. tricolor Mary L. Bowerman 1935-4-19 2864 Contra Costa West Road = North Road 6.3 mi from entrance Mount Diablo (Mount Diablo, above Pepperwood Spring); Mount Diablo, above Pepperwood Spring 609 Comment
  CAS-BOT-BC266489  Githopsis diffusa Alice Eastwood 1915-5-30 s.n. Contra Costa Mount Diablo Comment
  UC691592  Githopsis diffusa subsp. robusta Mary L. Bowerman 1935-5-3 2952 Contra Costa below Jungle of the Garden Gods (Rock City Ridge (= Fossil Ridge)); Mount Diablo, Rock City Ridge 487 Comment
  JEPS11816  Githopsis specularioides Chesnut and Drew 1889-4-16 Contra Costa Clayton Comment
  UC1051198  Gladiolus X colvillei N. Floy Bracelin 1944-6-11 2724 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS112332  Glycyrrhiza lepidota Dean G. Kelch and Andrew G. Murdock 2004-6-6 04 .222 Contra Costa Martinez; County: Contra Coasta; Downtown Martinez. Alhambra Creek near bay and railroad Station. Comment
  UC35376 Image available Godetia blasdalei W. C. Blasdale 1893-7-11 Contra Costa Point Isabel Comment
  RSA95463  Grindelia camporum L. S. Rose 1952-11-26 52020 Contra Costa Pittsburg. 3 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-BC305232  Grindelia hirsutula Walter Knight 1978-8-27 3144 Contra Costa Contra Loma Regional Park 30 Comment
  JEPS111719  Grindelia hirsutula D. G. Kelch 2004-6-19 04 .280 Contra Costa Selby Along railroad tracks west of Carquinez Bridge Crockett (Valona) 20 Comment
  JEPS20303  Grindelia hirsutula Lewis S. Rose 1954-11-23 54136 Contra Costa 1 mi s Pittsburg 15 Comment
  JEPS25016  Grindelia hirsutula G. Thomas Robbins 1958-10-2 3941 Contra Costa just w Carlson Blvd. (near Stege railroad siding, along Southern Pacific Railroad); Richmond Comment
  JEPS97539  Grindelia hirsutula R. D. Stone 1983-9-16 579 Contra Costa 4.5 mi SW Byron Hot Springs; Brushy Creek; SE1/4 of NW1/4 152 Comment
  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
  UC63192  Grindelia hirsutula H. M. Hall 1901-3-17 1659 Contra Costa Point Richmond; San Francisco Bay Region Comment
  CAS-BOT-BC305245  Grindelia hirsutula John Thomas Howell 1954-9-5 30027 Contra Costa Marsh Creek Road 8 miles from Byron Comment
  CAS-BOT-BC305247  Grindelia hirsutula R. E. Frenkel 1963-8-18 267 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  SEINET3140051  Grindelia hirsutula M. P. Dunford 1980-7-30 1510- 12 -2 Contra Costa Cultivated specimen from seed collected just W of Antioch Bridge over the San Joaquin River Comment
  POM193965  Grindelia hirsutula var. davyi J. T. Howell 1929-7-7 4332 Contra Costa 2 miles S of Rodeo. Comment
  RSA144687  Grindelia stricta var. angustifolia G. Thomas Robbins 1958-10-2 3941 Contra Costa Along Southern Pacific Railroad just W of Carlson Blvd., near Stege railroad siding, Richmond. Comment
  RSA144688  Grindelia stricta var. angustifolia G. Thomas Robbins 1958-10-2 3941 Contra Costa Along Southern Pacific Railroad just W of Carlson Blvd., near Stege railroad siding, Richmond. Comment
  UC10960  Guillenia flavescens unknown 1865-1 Contra Costa Mt. Diablo region Mt. Diablo Comment
  UC691152  Guillenia flavescens Mary L. Bowerman 1935-4-22 2879 Contra Costa 2 mi from North Gate (North Road, just w of chaparral); Mount Diablo 213 Comment
  UC10944  Guillenia lasiophylla W. H. Brewer 1862-4-24 987 Contra Costa Camp 68 Martinez Comment
  RSA44375  Guillenia lasiophylla L. S. Rose 1949-3-24 49010 Contra Costa 1 mile W of Byron. 30 Comment
  CAS-BOT-BC304576  Gutierrezia californica Lewis S. Rose 1932-10-2 32655 Contra Costa Marsh Creek Road Comment
  UC912309  Gutierrezia californica Herbert L. Mason 1929-9-21 5435 Contra Costa 3 mi above Clayton (Marsh Creek Road) Comment
  UC1051002  Hebe buxifolia N. Floy Bracelin 1943-7-19 2549 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  CDA5197  Hedera helix D. G. Kelch, A. G. Murdock 2005-5-23 5 .373 Contra Costa Carquinez Strait Region; Crockett - Crolona Heights. 6th Street at Lillian Street, Crockett. Comment
  UC1795861  Hedera helix Barbara Ertter 1994-10-23 13915 Contra Costa Southwest El Cerrito, north edge Breuner's parking lot, northwest of Albany Hill. Comment
  JEPS112751  Hedypnois rhagadioloides Dean W. Taylor 2001-3-28 17621 Contra Costa Berkeley Hills, on slopes about 0.75 miles South of Highway 24 at eastern portal of the Caldecot Tunnel 298 Comment
  UC32237  Helenium bigelovii Jos. Burtt Davy 1900-6-7 6671 Contra Costa near Martinez Comment
  JEPS22068  Helenium puberulum G. Thomas Robbins 1958-7-19 3901 Contra Costa about one-half mi e Point San Pablo (meadow overlooking Pt. San Pablo); Richmond Comment
  JEPS111691  Helianthella castanea D. G. Kelch 2004-3-12 04 .32 Contra Costa Pinole Valley Hillside and canyon above Wright Road. Off of Pinole Valley Road 220 Comment
  JEPS21043  Helianthella castanea W. L. Jepson 1922-5-23 9654 Contra Costa Mt. Diablo; summit Comment
  UC1485917  Helianthella castanea H. Stout and T. Wainwright 1980-3-27 1 Contra Costa ca. 1 mi e Morgan Territory Rd.; Mallory Ranch 621 Comment
  UC62937  Helianthella castanea H. M. Evans 1907-4-6 Contra Costa Pine Canyon, Mt. Diablo Comment
  UC88881  Helianthella castanea Alice Eastwood 1897-5-31 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC305605  Helianthus californicus Walter Knight; Joanne Dean 1978-8-14 3182 Contra Costa Browns Island Comment
  UC2028257  Helianthus gracilentus Barbara Ertter 1999-6-12 16722 Contra Costa Knobcone Point Road on south side of Mount Diablo, burned chamissal at head of NE fork of Sycamore Creek. Comment
  SD71038  Heliotropium amplexicaule Peter Rubtzoff 1967-9-5 5881 Contra Costa University of California campus, Berkeley, on dry hillside at the edge of Haviland Hall parking lot. Comment
  SEINET3861359  Heliotropium convolvulaceum K., L.; N. Thorne; J. Chandler 1986-7-27 4964 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough. SE portion of Bethel Slough.; 0 610 Comment
  CDA33069  Heliotropium curassavicum D. G. Kelch 2010-10-5 10 .422 Contra Costa The Delta; Just east of Antioch bridge. Comment
  JEPS111842  Heliotropium curassavicum D. G. Kelch 2004-7-9 04 .307 Contra Costa Muir grave Alhambra Creek, Martinez, Near Muir gravesite 60 Comment
  CAS-BOT-BC305872  Helminthotheca echioides R. E. Frenkel 1964-2-22 365 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  CAS-BOT-BC314853  Hemizonia congesta subsp. luzulifolia L. R. Abrams 1910-10-9 4359 Contra Costa Between San Ramon and Dublin Comment
  JEPS121012  Hemizonia congesta subsp. luzulifolia D. G. Kelch 2006-7-14 06 .333 Contra Costa Between Rte 4 and Carbon Rd. E Rodeo Comment
  UC197526  Hemizonia congesta subsp. luzulifolia H. M. Hall 1914-8-23 9859 Contra Costa San Pablo 15 Comment
  UC990637  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1909-9-25 Contra Costa Walnut Creek Comment
  UC990639  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1909-9-24 Contra Costa San Ramon Comment
  CAS-BOT-BC314851  Hemizonia congesta subsp. luzulifolia David D. Keck 1932-7-7 1740 Contra Costa 10 miles S. of Brentwood on Vasco Road to Livermore, southerastern Contra Costa County Comment
  UCD133007  Hemizonia congesta subsp. luzulifolia Collector Unknown Date Unknown 80 Contra Costa on embarkment at Kennilwoth and Arlington Roads, Kensinton Park. 121 Comment
  POM360296  Hemizonia fitchii E. E. Stanford 1930-9-20 2100 Contra Costa Near Walnut Creek Comment
  RSA121592  Hemizonia fitchii H. S. Yates 1934-9-2 4086 Contra Costa 2 miles S of Mt. Diablo. 579 Comment
  SEINET7883477 Image available Hemizonia heermannii Lewis S. Rose 1932-1 32667 Contra Costa WALNUT CREEK Comment
  RSA722228  Hemizonia kelloggii Barbara Ertter, Chris Thayer 1994-5-19 12783 Contra Costa Opposite E end of Antioch Dunes, S side of Wilber Avenue N of railroad tracks E of Antioch. Comment
  RSA81495  Hemizonia luzulifolia subsp. rudis James I. McMurphy 1909-9-24 s.n. Contra Costa 1 mile N of San Ramon. Comment
  RSA81672  Hemizonia luzulifolia subsp. rudis James I. McMurphy 1909-9-25 s.n. Contra Costa Walnut Creek. Comment
  RSA424742  Hemizonia pungens subsp. pungens Aaron Liston 1987-4-27 670 -4 Contra Costa 3 miles S of Byron. Comment
  UC901874  Heracleum lanatum L. Constance 1950-6-25 3326 Contra Costa s. rim Wildcat Canyon (Tilden Park); , Tilden Park 365 Comment
  UC901875  Heracleum lanatum L. Constance 1950-6-25 3326 Contra Costa s. rim Wildcat Canyon (Tilden Park); , Tilden Park 365 Comment
  UCD127539  Heracleum maximum R. Tofsrud 1948-1 s.n. Contra Costa Exact location unknonw. Comment
  CAS-BOT-BC310194  Hesperevax sparsiflora var. sparsiflora Mary L. Bowerman 1933-4-15 1850 Contra Costa Mount Diablo. Canyon south of Arroyo del Cerro Comment
  UC1118396  Hesperevax sparsiflora var. sparsiflora C. M. Belshaw 1936-5-7 2045 Contra Costa 2 mi s of (plot 1) San Ramon; Mt Diablo Quadrangle Comment
  JEPS100155  Hesperocnide tenella G. Smick 2003-4-29 GAS 155 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA445902  Hesperocnide tenella Joseph A. Ewan 1936-7-5 9731 Contra Costa Wildcat Creek. Comment
  CAS-BOT-BC167427  Hesperolinon breweri T. S. Brandegee 1884-5-1 s.n. Contra Costa Near Antioch Comment
  CAS-BOT-BC167431  Hesperolinon breweri Helen K. Sharsmith 1947-6-2 3947 Contra Costa Headwaters of Marsh Creek, on shale (?) 0.6 miles from summit of Clayton-Tassajaro-Livermore Road, Mount Diablo 304 Comment
  UC311528  Hesperolinon breweri A. D. E. Elmer July, 1903 4545 Contra Costa Mount Diablo Comment
  UC692694  Hesperolinon breweri Mary L. Bowerman 1935-6-15 3137 Contra Costa Eagle Point Ridge w 2632; Mount Diablo 762 Comment
  UC692695  Hesperolinon breweri Mary L. Bowerman 1933-6-7 2254 Contra Costa North Peak Ridge Mount Diablo 1005 Comment
  CAS-BOT-BC167433  Hesperolinon breweri John Thomas Howell 1942-7-19 17047 Contra Costa Serpentine ne. of Deer Flat, Mt. Diablo Comment
  SEINET6691243  Hesperolinon breweri K. Brandegee 1907-6-16 34 Contra Costa Hills between Antioch and Marsh Creek, on the easterly side of Mt. Diablo. Comment
  CAS-BOT-BC175984  Hesperolinon californicum Mary L. Bowerman 1933-6-14 2279 Contra Costa Inner Black Hills west of 1970. Mount Diablo Comment
  UC73444  Hesperolinon californicum Milo S. Baker 1904-6-23 Contra Costa near Hurley's; Mount Diablo Comment
  JEPS32302  Hesperolinon micranthum W. L. Jepson May 23 1891-May 24 1891 13540 Contra Costa Mount Diablo Comment
  CAS-BOT-BC422502  Hesperomecon linearis C. F. Baker 1903-4-25 2802 Contra Costa Antioch Comment
  RSA445543  Hesperomecon linearis H. de Forest 1930-05 s.n. Contra Costa [No location data on label] Comment
  JEPS11798  Heterocodon rariflorum Mary L. Bowerman 1935-6-15 3133 Contra Costa Mitchell Canyon; Mount Diablo 640 Comment
  UC691519  Heterocodon rariflorum Mary L. Bowerman 1935-6-15 3133 Contra Costa Mitchell Canyon; Mount Diablo 640 Comment
  UC2028265  Heterocodon rariflorum Barbara Ertter 1999-6-12 16715 Contra Costa West Branch Alamo Creek on south flank of Mount Diablo, along unofficial path running from north spur of Black Hawk Ridge Road to south spur off of Knob Cone Point Road (near powerline). Comment
  CAS-BOT-BC143647  Heteromeles arbutifolia John Thomas Howell 1925-10-11 1494 Contra Costa Moraga Ridge, Oakland Hills Comment
  JEPS99982  Heteromeles arbutifolia G. Smick 2003-2-20 GAS 50 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  OBI62818  Heteromeles arbutifolia John Osborne 1970-11-21 14 Contra Costa 3173 Somerset Dr., Lafayette 76 Comment
Read comments Sep 18 2016
  SBBG21359  Heteromeles arbutifolia V. Haraden 1941-7-18 12 Contra Costa near Nortonville 121 Comment
  CAS-BOT-BC143645  Heteromeles arbutifolia Volney Rattan 1888-8-6 s.n. Contra Costa Oakland Creek, Oakland Comment
  CDA22495  Heterotheca grandiflora D. G. Kelch, Mike Park 2008-9-1 8 .294 Contra Costa Carquinez Strait; 200 m W of Pacheco Slough, E of Martinez. Comment
Read comments Dec 4 2011
  UC903039  Heterotheca grandiflora Ethel Crum 1935-12-8 1731 Contra Costa along Sacramento River San Joaquin Valley, Sacramento River Comment
  UC2000000 Image available Heterotheca sessiliflora var. bolanderioides J. C. Semple, B. A. Suripto, T. Ahmed 1990-8-16 9339 Contra Costa Charles Tilden Reg. Park, Vollmer Peak. Comment
  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
  UC691425  Hieracium albiflorum Mary L. Bowerman 1930-10-19 488 Contra Costa s road at Garden-of-the-Gods; Mount Diablo Comment
  UC764640  Hoita macrostachya R. F. Hoover 1937-8-31 2702 Contra Costa Avon Comment
  SEINET5782138 Image available Holocarpha heermannii L. S. Rose 1941-10-13 41465 Contra Costa 1 mi E of Walnut Creek Comment
  UC4897718  Holocarpha heermannii Lewis S. Rose 1934-9-9 34462 Contra Costa 9 mi ne Danville Comment
  CAS-BOT-BC325841  Holocarpha heermannii L. R. Abrams 1910-10-8 4337 Contra Costa Green Valley, Mt. Diablo 304 Comment
  CAS-BOT-BC325843  Holocarpha heermannii David D. Keck 1933-10-28 2605 Contra Costa 4.5 mi. SE of Martinez on road to Pacheco Comment
  CDA17961  Holocarpha heermannii R. M. Case 1999-9-9 PDR 004913 Contra Costa Marsh Creek Rd., 2 mi. E of Clayton. 0 Comment
  POM299470  Holocarpha heermannii L. S. Rose 1941-10-13 41465 Contra Costa 1 miles E of Walnut Creek. 50 Comment
  RSA202873  Holocarpha heermannii L. S. Rose 1934-9-9 34462 Contra Costa S slope of Mt. Diablo; 9 miles NE of Danville. 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
  UC204053  Holocarpha heermannii A. D. E. Elmer Jul 1903 4613 Contra Costa Comment
  UC615581  Holocarpha heermannii Beryl O. Schreiber 1933-10-5 935 Contra Costa Comment
  CAS-BOT-BC320226  Holocarpha macradenia David J. Powers 1974-10-6 1001 Contra Costa 100-400 feet east of highway 80, and 100-300 yards south of Appian Way, Pinole Comment
  SJSU7098  Holocarpha macradenia D. J. Powers 1974-10-6 1001 B Contra Costa 100-300' E of Interstate Hwy 80 & 100-300 yards S of Appian Way, Pinole Comment
  UC1550280  Holocarpha macradenia Dean Kelch 1988-8-8 Contra Costa immediately s I-80 (ca 1/2 mi w of Appian Way); Pinole Comment
  CAS-BOT-BC320220  Holocarpha macradenia Walter Knight; Irja Knight 1978-8-8 3101 Contra Costa On s.e. corner of Interstate 80 and Appian Way. [1 mi. n. of El Sobrante] Comment
  CAS-BOT-BC320252  Holocarpha obconica R. F. Hoover 1965-9-24 9649 Contra Costa Foothills west of Byron, between Kellogg and Marsh Creeks Comment
  SEINET5782141 Image available Holocarpha obconica L. S. Rose 1941-10-16 41466 Contra Costa 6 mi W of Byron, on Marsh Creek Rd Comment
  CAS-BOT-BC320260  Holocarpha obconica John Thomas Howell 1930-9-28 5501 Contra Costa On the Marsh Creek Road, 5.4 miles from Byron Comment
  UC913078  Holocarpha obconica David D. Keck and J. Clausen 1933-10-27 2566 Contra Costa Vasco Road at junction with Byron Road Comment
  POM298273  Holocarpha obconica subsp. autumnalis D. D. Keck, Jens Clausen 1933-10-27 2566 Contra Costa Vasco Road at junction with Byron Road. Comment
  CAS-BOT-BC320327  Holocarpha virgata David D. Keck 1933-10-27 2568 Contra Costa 1.6 mi. W. of Byron, 1.4 mi. from junction with Vasco Road Comment
  CAS-BOT-BC324617  Holocarpha virgata R. F. Hoover 1965-9-24 9648 Contra Costa Foothills west of Byron east of Kellogg Creek Comment
  CAS-BOT-BC320331  Holocarpha virgata Brandegee No date on label s.n. Contra Costa Antioch Comment
  CAS-BOT-BC324615  Holocarpha virgata L. R. Abrams 1916-7-1 5725 Contra Costa Road between Walnut Creek Comment
  UC523545  Holocarpha virgata subsp. virgata David D. Keck 1933-11-2 2623 Contra Costa 5 mi e Clayton (on Marsh Crek Road, just opposite Mt. Diablo) Comment
  OBI16043  Holocarpha virgata subsp. virgata Robert F. Hoover 1969-8-29 11566 Contra Costa Raymond rd and Ames St, Livermore Valley Comment
  UC523544  Holocarpha virgata subsp. virgata David D. Keck 1933-11-2 2620 Contra Costa 6 mi from Antioch (between Lone Tree Way and Marsh Creek Road); Horse Valley Comment
  UC691147  Holodiscus discolor Mary L. Bowerman 1935-6-15 3130 Contra Costa Mount Diablo, ridge running north from Mitchell-Pine divide Mount Diablo 944 Comment
  RSA0016873  Hordeum brachyantherum H. de Forest 1930-5-7 s.n. Contra Costa Road near Morage. Comment
  SEINET5554708  Hordeum brachyantherum J. Hamai 1985-1 s.n. Contra Costa Russell Reserve. Comment
  UC691185  Hordeum brachyantherum subsp. brachyantherum Mary L. Bowerman 1935-5-16 3002 Contra Costa Russelman Park Road at Gregory Ranch junction (Mount Diablo); Mount Diablo 289 Comment
  CDA9486  Hordeum depressum D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .211 Contra Costa Byron Airport. Comment
  CDA32929  Hordeum marinum subsp. gussoneanum D. G. Kelch 2009-5-24 9 .301 Contra Costa Carquinez Strait; S of Ozol, W/SW of Martinez. Comment
  CHSC116612  Hordeum marinum subsp. gussoneanum Lowell Ahart; Josephine Guardino 2016-4-19 20800 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  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
  POM300591  Hordeum marinum subsp. gussoneanum Mary L. Bowerman 1931-5-13 846 Contra Costa Pine Canyon floor slightly more than a mile above the sulphur spring Comment
  UC50687  Hordeum murinum subsp. leporinum Jos. Burtt Davy 1900-3-24 6536 Contra Costa Point Richmond Comment
  UCSB12516  Hordeum murinum subsp. leporinum Grah, Nancy 1962-4-14 Contra Costa .5 miles north of Miner Rd. on Sleepy Hollow Lane, Orinda 182 Comment
  UC521670  Horkelia californica subsp. dissita Joseph Andorfer Ewan 1933-10-15 8023 Contra Costa Above Indian Ceremonial Spr.; Mt. Diablo Comment
  UC691092  Horkelia californica subsp. dissita Mary L. Bowerman 1930-6-28 404 Contra Costa Mount Diablo, Lower Silver Spring Comment
  UC691097  Horkelia californica subsp. dissita Mary L. Bowerman 1938-6-14 3684 Contra Costa Mt. Diablo, Rocky Point Spring 701 Comment
  CAS-BOT-BC55476  Hornungia procumbens Alice Eastwood 1914-3-14 s.n. Contra Costa Byron Springs. Comment
  CDA24877  Hornungia procumbens Jim Jokerst 1989-3-28 3057 Contra Costa Northwest of junction Byron Hot Springs Road and Armstrong Road, northeast of Livermore. 0 Comment
  JEPS96251  Hydrocotyle verticillata Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10863 Contra Costa just w. Antioch marina (along levee at water's edge, accessed from marina, Dow Wetlands Preserve); Dow Wetlands Preserve Comment
  UC691452  Hypochaeris glabra Mary L. Bowerman 1931-4-11 691 Contra Costa Pine Canyon 121 Comment
  RSA31227  Hypochaeris glabra Joseph A. Ewan 1936-5-3 9492 Contra Costa W slope of Wildcat Canyon near Shasta Road. Comment
  CAS-BOT-BC311407  Hypochaeris radicata Goodwin; Bellue 1932-5-6 s.n. Contra Costa Unspecified Comment
  CDA7492  Hypochaeris radicata Goodwin, M. K. Bellue 1932-5-6 Contra Costa 0 Comment
  CAS-BOT-BC133497  Iris Walter Knight; Joanne Dean 1978-8-14 3152 Contra Costa Browns Island Comment
  UC2070447  Iris pseudacorus Barbara Ertter with Dorothy Frantz 2001-5-10 17639 Contra Costa Diablo Foothill Regional Park, Pine Creek just south of Castle Rock Recreation Area. Comment
  UC1818909  Isoetes howellii Barbara Ertter, Mary Bowerman et al. 1995-5-7 14032 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, in water of pond west of road in grassy flat. Comment
  JEPS22099  Iva axillaris subsp. robustior G. Thomas Robbins 1958-7-19 3909 Contra Costa at edge of rock quarry on hills above and just s Castro Pt.; San Francisco Bay, Richmond Comment
  JEPS68931  Iva axillaris subsp. robustior Edward Lee 1934-9-30 1227 Contra Costa Moraga; railroad track site just se Comment
  JEPS111674  Jaumea carnosa D. G. Kelch 2003-8-13 03 .99 Contra Costa Martinez Marsh 0 Comment
  UC1949201  Jaumea carnosa Barbara Ertter with Elizabeth Neese 1988-10-15 7975 Contra Costa W of I-580 in El Cerrito, W side along Rydin Road N of Central Avenue Comment
  CAS-BOT-BC102306  Juglans hindsii Barrett Anderson 1987-4-30 3486 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD 125 Comment
  CDA9511  Juglans hindsii D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .238 Contra Costa CA Delta; Along Clifton Court Near Clifton Court Forebay. Comment
  JEPS100044  Juglans regia G. Smick 2003-5-30 GAS 209 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC691987  Juncus ambiguus Mary L. Bowerman 1933-4-22 1885 Contra Costa nw end of Shell Ridge (s of highway (Heather Farm), Mount Diablo); Mount Diablo, Shell Ridge Comment
  CDA9369  Juncus arcticus subsp. balticus D. G. Kelch 2006-7-14 6 .334 Contra Costa Between Rte 4 and Carbon Rd. E Rodeo. Comment
  UC2028428  Juncus articulatus Barbara Ertter 1996-9-19 15300 Contra Costa Antioch Marina, edge of bay in Dow Marsh lands Comment
  CHSC97914  Juncus balticus D. G. Kelch 2006-6-14 06 .334 Contra Costa Between Rte 4 and Carbon Rd. E Rodeo. 24 Comment
  UC1619919  Juncus balticus Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10681 Contra Costa n Pittsburg (near confluence of Sacramento and San Joaquin Rivers opposite Pittsburg Marina, marsh at edge of lagoon in center of w end of island); Browns Island Comment
  JEPS112443  Juncus bufonius D. G. Kelch 2004-4-11 04 .60 Contra Costa Crockett - 5th St. Prairie 5th street Prairie, Crockett 85 Comment
  UC2028304  Juncus bufonius var. bufonius Barbara Ertter, Susan D'Alcamo 1998-6-12 16201 Contra Costa Along Curry Canyon Road just east of Curry Point, south side of Mount Diablo. Comment
  UC1819050  Juncus bufonius var. congestus Barbara Ertter, Lisa Schultheis 1995-4-27 14009 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
  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
  CDA15268  Juncus mexicanus G. F. Hrusa, D. Crowe 1998-5-8 14399 Contra Costa Sacramento Delta; Drainage ditch parallel to Antioch-Pittsburg Hwy, at E end of Dow Chemical property. Comment
  UC691940  Juncus mexicanus Mary L. Bowerman 1933-5-3 1987 Contra Costa Alder Creek Mount Diablo 1066 Comment
  UC2013049  Juncus occidentalis Barbara Ertter with Lisa Schultheis 1996-9-2 15274 Contra Costa South side Mount Diablo, short distance down trail to Oyster point from Blackhawk Ridge road junction. Comment
  UCD141649  Juncus occidentalis M. Wiesendanger 1926-5-1 1468 Contra Costa near Richmond. Comment
  RSA0069375  Juncus patens Katie Gallagher, Nick Jensen 2014-4-26 214 Contra Costa Las Trampas Regional Wilderness. 487 Comment
  JEPS100047  Juncus phaeocephalus var. paniculatus G. Smick 2003-6-6 GAS 211 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS112448  Juncus phaeocephalus var. paniculatus A. G. Murdock 2004-5-28 276 Contra Costa Refugio Valley 120 Comment
  RSA0027402  Juncus phaeocephalus var. paniculatus Barbara Ertter 1999-7-17 16765 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, Wildcat Creek Trail between Rifle Range Road and boundary with Tilden Regional Park. On east side of road. Comment
  CDA15284  Juncus phaeocephalus var. phaeocephalus G. F. Hrusa, D. Crowe, R. York 1998-7-17 14722 Contra Costa Sacramento Delta; Antioch-Pittsburg Hwy. at E end of Dow Chemical property. Comment
  UC2029169  Juncus xiphioides Barbara Ertter 2000-7-16 17407 Contra Costa Pine Creek on WNW base of Mount Diablo Comment
  UC691982  Juncus xiphioides Mary L. Bowerman 1932-8-27 1523 Contra Costa s of Turtle Rock; Mount Diablo Comment
  UC1076380  Juniperus californica Herbert L. Mason 1923-11-12 850 Contra Costa middle slopes Mt. Diablo Comment
  UC1051219  Justicia carnea N. Floy Bracelin 1942-9-20 2310 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC235875  Keckiella corymbosa A. D. E. Elmer 1903-7-1 4956 Contra Costa Mount Diablo Comment
  UC2045296 Image available Keckiella corymbosa Mary L. Bowerman 1930-6-7 276 Contra Costa Meridian Peak summit Comment
  UC2029004  Kickxia elatine Barbara Ertter with Michelle Lee et al. 2002-6-29 17965 Contra Costa Lower Curry Creek on east side of Mount Diablo, private property just above Morgan Territory. Comment
  RSA656753  Koeleria macrantha Beecher Crampton 1956-5-14 3394 Contra Costa 3.7 miles southeast of Clayton. Comment
  UC691777  Lactuca serriola Mary L. Bowerman 1930-10-4 483 Contra Costa Maple Spring Mount Diablo 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
  CAS-BOT-BC340538  Lactuca serriola Walter Knight; Joanne Dean 1978-8-14 3165 Contra Costa Browns Island Comment
  CAS-BOT-BC340699  Lactuca virosa John Thomas Howell 1943-8-22 19310 Contra Costa Near head of San Leandro Creek Canyon 243 Comment
  UC1818925  Lagophylla ramosissima Barbara Ertter, Mary Bowerman 1995-6-11 14253 Contra Costa Shell Ridge Recreation Area southeast of Walnut Creek, bank of Indian Creek above Indian Valley Pond, partial sun on Franciscan layer. 76 Comment
  CAS-BOT-BC341474  Lagophylla ramosissima John Thomas Howell 1925-11-1 1550 Contra Costa Hillside near Pinehurst, San Leandro Canyon Comment
  CAS-BOT-BC341478  Lagophylla ramosissima L. R. Abrams 1910-10-8 4337 Contra Costa Glenn Valley, Mt Diablo 304 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
  JEPS128773  Lamarckia aurea Kevin Hintsa 2000-6-5 Contra Costa 3101 Finley Road at SE base of Mount Diablo. Comment
  SEINET7949732  Lamium amplexicaule R. R. Halse 1988-2-20 3546 Contra Costa Along State Hwy. 4 near its junction with Balfour Road, on the S edge of Brentwood. 23 Comment
  JEPS105733  Lastarriaea coriacea David Gowen 2004-5-1 56 Contra Costa Lime Ridge Open Space. Ridge trail in the north section of the park and south of the water tank. Comment
  CAS-BOT-BC337979  Lasthenia californica Volney Rattan 1879-1-1 s.n. Contra Costa Antioch Comment
  CHSC23361  Lasthenia californica Willis Ball 1975-4-19 523 Contra Costa Contra Loma Regional Park. In area #1. Ca. 150 yds sw of main parking lot at the s end of the lake. 38 Comment
  RSA181411  Lasthenia californica James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC337981  Lasthenia californica H. M. Hall 1901-4-5 1749 Contra Costa San Francisco Bay. Mt Diablo Comment
  RSA55168  Lasthenia californica C. F. Baker 1903-4-28 2829 Contra Costa Marsh Creek, Mt. Diablo. Comment
  CAS-BOT-BC324458  Lasthenia conjugens Barrett Anderson; Thomas Scofield 1995-4-25 4553 Contra Costa Along Highway 4 approximately 2.38 km east of Interestate 80 Highway 4 interchange near Rodeo Comment
  JEPS18379  Lasthenia fremontii Rimo Bacigalupi with F. Chisaki 1957-3-27 5766 Contra Costa about 5.25 mi nw of Bethany and 1.25 mi nw of Herdlyn n end of the Holey road; At S. P. R. R. crossing of Byron Hwy. 5 Comment
  CAS-BOT-BC353329  Lasthenia fremontii C. F. Baker 1903-4-27 2867 Contra Costa Alkaline plains, Byron. Comment
  RSA523884  Lasthenia fremontii Barbara Ertter, Jim Jokerst, D. Magney 1989-4-5 8136 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  UC1598597  Lasthenia glaberrima A. D. E. Elmer 1903-5-1 4321 Contra Costa Walnut Creek Comment
  JEPS89771  Lasthenia gracilis Dean William Taylor 991 Contra Costa along Byron Road (J4) at the junction of Holley Road; Byron Road 15 Comment
  UC71908  Lasthenia gracilis The Postmaster 1900-3-24 Contra Costa Oakley Region of Mount Diablo Comment
  POM301015  Lasthenia microglossa Mary L. Bowerman 1932-3-27 1141 Contra Costa Mitchell Rock. Comment
  UC2070483  Lasthenia microglossa Barbara Ertter 2003-3-28 18116 Contra Costa Round Valley Regional Preserve, ca 1 mile west of trailhead. Comment
  CAS-BOT-BC366303  Lasthenia minor Alice Eastwood 1914-3-17 3830 Contra Costa Byron Springs Comment
  UC1184086  Lasthenia platycarpha Ren Hwa Shan 1947-3-23 2013 a Contra Costa vernal pool 3.3 mi s Byron 7 Comment
  UCD33427  Lasthenia platycarpha Beecher Crampton 1968-3-27 8236 Contra Costa S.E. corner of County, ca. 3.5 miles south of Byron. Comment
  UC15383  Lathyrus jepsonii var. californicus W. H. Brewer 1862-4-30 1018 Contra Costa Camp 69 Walnut Creek Comment
  UCD106240  Lathyrus jepsonii var. californicus R. N. Raynor 1939-4-15 s.n. Contra Costa Near San Ramon. Comment
  CAS-BOT-BC205012  Lathyrus jepsonii var. jepsonii Alice Eastwood 1915-6-21 4729 Contra Costa San Leandro Comment
  JEPS112330  Lathyrus latifolius Dean G. Kelch and Andrew G. Murdock 2004-6-19 04 .284 Contra Costa Crockett - Tormey Headlands; County: Contra Costa; North-facing hill above / along railroad tracks. West of Carquinez Bridge. Crockett contra Coasta Country CA. Comment
  JEPS99995  Lathyrus latifolius G. Smick 2003-5-30 GAS 199 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CHSC39488  Lathyrus sulphureus Tyler Williams; V. Oswald 1984-4-18 21 Contra Costa Mt. Diablo. Ca. 5 yd e of turnout on Summit Rd., 0.1 mi e of Junction Ranger Station in Mount Diablo State Park. 609 Comment
  CDA23105  Lathyrus vestitus D. G. Kelch, D. A. Weinstein 2008-4-25 8 .085 Contra Costa Alvarado Park (west end of Wildcat Canyon Park) on north-facing hillside above Hindu temple in mixed scrub/grassland. Comment
Read comments Jan 7 2016
  CDA964  Lathyrus vestitus D. G. Kelch 2004-4-26 4 .13 Contra Costa East Bay; Richmond: Miller-Knox Park, N side. Comment
  JEPS64865  Lathyrus vestitus var. vestitus W. C. Blasdale 1897-5-1 Contra Costa Point Isabel Comment
  CAS-BOT-BC323909  Layia chrysanthemoides M. K. Curran 1884-1-1 s.n. Contra Costa Antioch Comment
  JEPS89805  Layia chrysanthemoides Dean W. Taylor 1992-4-16 12388 Contra Costa s of Byron Hot Springs (San Joaquin Valley, in swale draining on e margin Section 34); San Joaquin Valley 45 Comment
  JEPS75555  Layia gaillardioides P. F. Yorks 1974-4-19 130 Contra Costa n of Briones Reservoir ca. 1.4 km s of Bear Creek Road; Hampton Road Natural Reserve 170 Comment
  UC589705  Layia gaillardioides Douglas Horn 1938-4-24 61 Contra Costa w of Orinda 274 Comment
  CAS-BOT-BC321748  Layia gaillardioides John Thomas Howell 1941-4-6 16176 Contra Costa Deer Flat, Mt. Diablo Comment
  CAS-BOT-BC321080  Layia glandulosa C. F. Baker 1903-4-27 2939 Contra Costa Antioch Comment
  UC89240  Layia glandulosa C. F. Baker 1903-4-27 2939 Contra Costa Antioch Comment
  POM53349  Layia glandulosa subsp. glandulosa C. F. Baker 1903-4-27 2939 Contra Costa Antioch Comment
  POM267968  Layia hieracioides D. D. Keck 1941-6-5 5307 Contra Costa Berkeley Hills, Fish Creek Road 1/4 mile W of E portal of Broadway Tunnel. 335 Comment
  UC691546  Layia hieracioides Mary L. Bowerman 1933-5-18 2133 Contra Costa SW corner S5 R1S R1E Comment
  UC30669  Layia platyglossa Harley P. Chandler 1901-4-5 992 Contra Costa Mt. Diablo Comment
  UC518017  Layia platyglossa Lewis S. Rose 1933-4-17 33093 Contra Costa Antioch Comment
  UC691556  Layia platyglossa Mary L. Bowerman 1931-5-16 853 Contra Costa open spaces on s side Meridian Peak summit; Mount Diablo, Meridian Peak summit Comment
  UC89326  Layia platyglossa C. F. Baker 1903-5-28 2874 Contra Costa Antioch Comment
  UC89338  Layia platyglossa Brandegee May 1883 Contra Costa e slope of Mt. Diablo Comment
  UC2028427  Leersia oryzoides Barbara Ertter 1996-9-19 15297 Contra Costa Antioch Marina, edge of Dow Marsh lands Comment
  JEPS75303  Lemna gibba L. R. Heckard 1975-11-2 4211 Contra Costa nw side Brooks Island (Richmond); , Brooks Island Comment
  UC2027954  Lemna minor Barbara Ertter with Joanne Kerbavaz 2000-8-20 17504 Contra Costa Frog Pond on southeast side of Mount Diablo. Comment
  SBBG21163  Lepechinia calycina V. Haraden 1941-7-18 11 Contra Costa near Nortonville 121 Comment
  SEINET4081593  Lepechinia calycina B. C. Templeton 1962-1 sn Contra Costa Mount Diablo. Comment
  CDA43402  Lepidium acutidens Michael Pitcairn & Dean Kelch 2015-3-6 s.n. Contra Costa South end of the Byron Airport. Comment
  UC1585845  Lepidium dictyotum Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8142 Contra Costa ca 15 air mi sw Stockton (w and adjacent to Clifton Court Forebay, se Contra Costa Co.) Comment
  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
  CHSC67912  Lepidium dictyotum var. acutidens James D. Jokerst 1989-3-29 3074 Contra Costa Byron Hot Springs area NE of Livermore, adjacent to pipeline on terrace S of ephemeral creek. Comment
  JEPS21344  Lepidium dictyotum var. acutidens J. Burtt Davy May 1898 Contra Costa Danville Mount Diablo Region Comment
  JEPS21356  Lepidium dictyotum var. acutidens J. Burtt Davy May 1898 Contra Costa Livermore Valley Mount Diablo Region Comment
  UC856365  Lepidium dictyotum var. acutidens Lewis S. Rose 1937-3-26 37012 Contra Costa Byron 7 Comment
  UC1535348  Lepidium latifolium Ernest L. Gordon 1987-6-1 Contra Costa Martinez Regional Shoreline, across from the railroad depot, in park Martinez Regional Shoreline Comment
  UC1607701  Lepidium latifolium Barbara Ertter 1991-5-12 9810 Contra Costa sw corner El Cerrito (Point Isabel Regional Shoreline, n of park); San Francisco Bay, Point Isabel Regional Shoreline Comment
  RSA759893  Lepidium latifolium Barbara Ertter, CNPS 1990-9-16 9649 Contra Costa Southeast side of Holland Track northeast of Brentwood, edge of parking area for marina near field. Comment
  JEPS25391  Lepidium latipes Rimo Bacigalupi with G. T. Robbins and Francia Chisaki 1959-4-14 7005 Contra Costa 8 mi s Antioch (just off Deer Valley Road); Briones Valley 79 Comment
  UC10645  Lepidium latipes F. T. Bioletti 1892-1 Contra Costa Comment
  JEPS116958  Lepidium latipes var. latipes David Gowen 2008-4-6 841 Contra Costa East of Marsh Creek Road on north side of Camino Diablo Road, near stock pond. Comment
  CAS-BOT-BC89894  Lepidium nitidum Alice Eastwood; John Thomas Howell 1936-4-19 2152 Contra Costa 4 miles south of Antioch. Comment
  CAS-BOT-BC89898  Lepidium nitidum Reed C. Rollins 1946-3-25 3044 Contra Costa Western slope of Mount Diablo. Comment
  JEPS73692  Lepidium oxycarpum L. R. Heckard with Wm. Hirano and Ted Niehaus 1968-3-5 1761 Contra Costa about 3 mi se Byron (at junction of Holey Road, along Byron-Bethany road) 7 Comment
  UC10601  Lepidium strictum F. T. Bioletti 1892-1 Contra Costa Byron Comment
  UC1151682  Leptochloa uninervia Beecher Crampton 1959-10-19 5467 Contra Costa Vasco Rd. just n junction with Mt. Diablo Road (4 mi s of Brentwood) Comment
  POM300970  Leptosiphon ciliatus Mary L. Bowerman 1935-5-22 3042 Contra Costa Eagle point ridge, canyon at north end which heads into saddle west of Twin Peaks. 305 Comment
  RSA77965  Leptosiphon ciliatus Verne Grant, Alva Grant 1948-5-15 8503 Contra Costa Wooded north-facing slopes of Sommerville Range, on Summerville- Antioch road Comment
  UC2027775  Leptosiphon ciliatus Barbara Ertter with Holly Forbes 1997-4-20 15565 Contra Costa North base of Mount Diablo at NE base of Eagle Ridge. Comment
  UCD32383  Leptosiphon ciliatus Beecher Crampton 1950-4-22 527 Contra Costa Contra Costa County, above Judsonville, south of the old Empire Mine around top and slopes of hills. 182 Comment
  UC2027920  Leptosiphon pygmaeus subsp. continentalis Barbara Ertter, Dan Norris 2001-4-8 17582 Contra Costa Lime Ridge Open Space east of Walnut Creek, high part of main ridge. Comment
  CAS-BOT-BC324118  Lessingia glandulifera var. glandulifera Alice Eastwood 1921-4-18 10270 Contra Costa Antioch Comment
  CAS-BOT-BC324114  Lessingia glandulifera var. glandulifera T. S. Brandegee 1883-1-1 s.n. Contra Costa Antioch Comment
  JEPS100183  Lessingia glandulifera var. glandulifera David Gowen 2004-5-11 58 Contra Costa Lime Ridge Open Space; Ridge trail in the N section of the park and S of the water tank Comment
  UC1287410  Lessingia pectinata var. tenuipes Willard Spence 1962-5-15 672 Contra Costa 0.2 mi e of entrance to Antioch Boat Ramp Comment
  UC691184  Leymus X multiflorus Mary L. Bowerman 1938-11-19 3734 Contra Costa Mitchell Creek tributary s Black Point; Mount Diablo 259 Comment
  POM365328  Leymus condensatus A. A. Beetle 1941-6-24 1751 Contra Costa Pt. Richmond on San Francisco Bay Comment
  CDA19893  Leymus triticoides R. M. Case 2002-6-1 PDR P 099532 Contra Costa Northern California; Highland Rd & Collier. 0 Comment
  UC691180  Leymus triticoides Mary L. Bowerman 1933-9-23 2447 Contra Costa Alder Creek Mount Diablo (near spring in gully) Comment
  RSA0026158  Leymus triticoides Barbara Ertter 2000-7-29 17448 -a Contra Costa Lower Donner Canyon just above Donner Cabin site, on north side of Mount Diablo. 213 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
  UC2029177  Lilaea scilloides Barbara Ertter with Alan Prather 2003-6-7 18191 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo. Comment
  CAS-BOT-BC211109  Lilaeopsis masonii Walter Knight; Irja Knight 1977-6-18 s.n. Contra Costa Antioch Sand Dunes, Little Corral site Comment
  UC1111016  Lilaeopsis masonii Herbert L. Mason October, 1942 12556 Contra Costa Antioch, Lower San Joaquin R. Comment
  UCD127576  Lilaeopsis masonii Robert E. Preston 1991-10-1 604 Contra Costa Antioch, Big Break Marina, along east side of levee north of the marina. 0 Comment
  UC692005  Lilium pardalinum Mary L. Bowerman 1935-6-21 3144 Contra Costa e fork Arroyo del Cerro; Mount Diablo 289 Comment
  UC971814  Limnanthes douglasii subsp. rosea Annetta Carter 1941-4-27 1635 Contra Costa 3 mi se Byron Comment
  CDA39056  Limonium sinuatum D. G. Kelch 2011-6-12 11 .585-B Contra Costa Carquinez Strait; Above Point Costa. 0 Comment
  UC691636  Linanthus androsaceus Mary L. Bowerman 1933-4-15 1861 Contra Costa 2nd ridge se Arroyo del Cerro; Mount Diablo Comment
  UC727781  Linanthus bicolor Milo S. Baker 1946-4-20 11332 Contra Costa s of Clayton (summit) 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
  UC615173  Linanthus liniflorus Beryl O. Schreiber 1932-3-27 155 Contra Costa Byron Hot Springs Comment
  SEINET8729347 Image available Linanthus liniflorus Herbert L. Mason 1952-1 14265 Contra Costa 3.5 miles south of Eyron Comment
  CDA40556  Lithophragma affine V. Guise & K. Alder 2014-4-3 PDR# 070 P06223873 Contra Costa Danville; 0.5 mile north & 0.5 mile east of the end of Finley Road. 0 Comment
  JEPS75536  Lithophragma affine P. F. Yorks 1975-5-15 397 Contra Costa N of Briones Reservoir (ca. 1.7 km S of Bear Creek Road on Hampton Road); Hampton Road Natural Reserve 180 Comment
  JEPS99949  Lithophragma affine G. Smick 2003-4-3 GAS 67 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC402493  Lithophragma affine Chestnut and Drew 1889-4-16 Contra Costa Martinez Comment
  UC518019  Lithophragma affine Lewis S. Rose 1933-4-17 33099 Contra Costa Walnut Creek Comment
  POM274347  Lithophragma affine subsp. affine Lyman Benson 1931-3-18 2663 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 Comment
  UC2028180  Lithophragma bolanderi Barbara Ertter 1998-5-3 16038 Contra Costa SW fork of Pine Creek between Pine Ridge and Wall Point Ridge, southwest base of Mount Diablo. Comment
  CAS-BOT-BC342121  Logfia filaginoides Alice Eastwood 1923-5-4 11724 Contra Costa Mt Diablo Comment
  JEPS99986  Lolium multiflorum S. O'Neil 2003-3-11 SEO 17 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC38784  Lolium multiflorum J. Burtt Davy 1897-9-4 4078 Contra Costa Stege Comment
  CHSC75233  Lolium perenne Roger Thom 1987-5-13 7 Contra Costa Contra Costa Campus of Hayward Calif. State University. 3100 Oak Park Blvd. Pleasant Hill. Field. 30 Comment
  UC606746  Lolium perenne Edward Lee 1936-4-19 1973 Contra Costa Red Rock , se shore Red Rock (San Francisco Bay) Comment
  UCR129697  Lolium perenne Terry J. O'Brien 1999-1 s.n. Contra Costa San Francisco Bay Area, eastern Richmond along boundary with El Cerrito, Mira Vista Park, adjacent to Mira Vista School 91 Comment
  UCD66482  Lolium temulentum Beecher Crampton 1956-5-14 3408 Contra Costa Southern boundary of Mt. Diablo State Park. Comment
  CHSC69467  Lomatium caruifolium var. caruifolium James D. Jokerst 1989-5-28 3056 Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. Comment
  UC21195  Lomatium caruifolium var. caruifolium W. H. Brewer 1862-5-20 1128 Contra Costa hill n. of coal mines on n. side of Mt. Diablo Comment
  UC691420  Lomatium dasycarpum subsp. dasycarpum Mary L. Bowerman 1932-2-28 1095 Contra Costa W of Blackberry Spring; Mount Diablo Comment
  UC691421  Lomatium dasycarpum subsp. dasycarpum Mary L. Bowerman 1932-4-27 1395 Contra Costa canyon W of Riggs Canyon (Oyster Ridge, S face); Mount Diablo 304 Comment
  UC2027916  Lomatium dasycarpum subsp. dasycarpum Barbara Ertter with Dan Norris 2001-4-8 17580 Contra Costa Lime Ridge Open Space east of Walnut Creek, high part of main ridge. Comment
  UC140639  Lomatium macrocarpum Katharine Curran May 1885 Contra Costa Antioch Comment
  UC691772  Lomatium macrocarpum Mary L. Bowerman 1931-4-25 781 Contra Costa summit Meridian Peak (Mt. Diablo); Mt. Diablo Comment
  UC2027801  Lomatium macrocarpum Barbara Ertter with Holly Forbes 1997-4-20 15558 Contra Costa North side of Mount Diablo, north end of Eagle Peak Ridge on Mitchell Rock Trail between Mitchell Rock and Twin Peaks. Comment
  JEPS17533  Lomatium nudicaule W. L. Jepson May 22 1891-May 23 1891 14314 Contra Costa Mt. Diablo Comment
  UC21269  Lomatium utriculatum Alice Eastwood 1894-5-3 Contra Costa Antioch Comment
  UC691424  Lomatium utriculatum Mary L. Bowerman 1932-2-28 1091 Contra Costa ridge E of Rhine Canyon 487 Comment
  UC691480  Lonicera hispidula var. vacillans Mary L. Bowerman 1930-6-18 346 Contra Costa Dan Cook Canyon Mount Diablo Comment
  UC650409  Lonicera involucrata var. ledebourii Ira L. Wiggins 1930-4-18 4594 Contra Costa levee on e end Jersey Island Comment
  UC691484  Lonicera subspicata var. denudata Mary L. Bowerman 1935-5-25 3074 Contra Costa Rhine Canyon Mount Diablo 944 Comment
  UC691485  Lonicera subspicata var. denudata Mary L. Bowerman 1931-6-4 922 Contra Costa summit Mount Diablo (on n face) Comment
  UC1005847  Lonicera tatarica N. Floy Bracelin 1945-4-1 2840 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  SEINET10832893  Lotus Frenkel 1964-3-18 FRENKEL 400 A Contra Costa On giant road, .4 mi n of atsf rr crossing, richmond. 15 Comment
  UC15548  Lotus crassifolius var. crassifolius F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  JEPS48906  Lotus junceus W. L. Jepson 1945-3-11 27554 Contra Costa Moraga Ridge Comment
  UC692528  Lotus micranthus Mary L. Bowerman 1938-6-2 3655 Contra Costa Dan Cook Canyon Mount Diablo 487 Comment
  JEPS75468  Lotus scoparius P. F. Yorks 1975-5-15 402 Contra Costa n of Briones Reservoir (ca 1.5 km s of Bear Creek Road on Hampton Road in Hampton Road Natural Reserve) Comment
  JEPS100073  Lotus scoparius var. scoparius G. Smick 2003-5-30 GAS 201 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA90338  Lotus scoparius var. scoparius E. E. Stanford 1930-5-24 1518 Contra Costa Marsh Creek Canyon. Comment
  CDA29490  Lotus wrangelianus D. G. Kelch, Troy MacGregor 2009-5-1 9 .272 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  UC692263  Lotus wrangelianus Mary L. Bowerman 1933-5-9 2045 Contra Costa Stage Road Mount Diablo 853 Comment
  UC692323  Lotus wrangelianus Mary L. Bowerman 1932-4-9 1320 Contra Costa on large spur which heads into Sycamore Canyon; Mount Diablo, Inner Black Hills Comment
  RSA0026153  Ludwigia peploides subsp. montevidensis Barbara Ertter, Lincoln Constance 1995-6-16 14263 Contra Costa East edge Dow Marsh on west side Antioch Marina, south side San Joaquin River in Delta area. Comment
  POM77723  Lupinus affinis C. P. Smith 1922-5-20 3531 Contra Costa Oakland - Walnut Creek Road. Comment
  UC126957  Lupinus affinis A. V. Stubenranch 1892-5-9 Contra Costa Fish Ranch Road Comment
  UC1594183  Lupinus albifrons Jerry Powell 1992-6-17 1651 Contra Costa Richmond Field Station Comment
  UC2042499  Lupinus albifrons Barbara Kelly 2011-4-18 Contra Costa Tilden Regional Park, along Lomas Cantadas Rd., on a steep, rocky slope above the road. Comment
  JEPS112415  Lupinus albifrons var. albifrons Dean G. Kelch and Andrew G. Murdock 2005-4-15 05 .142 Contra Costa Rodeo Creek; county: Contra Costa; EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump). Comment
  UC1795854  Lupinus albifrons var. albifrons Barbara Ertter, Brad Olson, Diane Lake 1996-4-14 14594 Contra Costa Sycamore Spring Trail off Prospectors Gap Rd., east side Mt. Diablo. 640 Comment
  UC1129460  Lupinus albifrons var. collinus H. S. Yates 1934-9-2 4033 Contra Costa 2 mi nw Orinda; Concord Quad., nw of Orinda 304 Comment
  JEPS73600  Lupinus bicolor L. R. Heckard 1971-4-22 2496 Contra Costa along railroad grade near highway 80 crossing e Pinole; e of Pinole Comment
  UC400153  Lupinus bicolor Ynes Mexia 1929-4-21 2378 a Contra Costa Moraga Valley Comment
  UCD107174  Lupinus bicolor Morris Halperin 1929-4-21 s.n. Contra Costa St. Mary's College Campus. Comment
  UCSB11603  Lupinus bicolor Grah, Nancy 1962-4-14 Contra Costa 0.8 miles on Tappan Lane; north of Tarry Lane, Orinda 243 Comment
  JEPS12790  Lupinus chamissonis Rimo Bacigalupi with G. T. Robbins 1955-5-4 4980 Contra Costa just e Antioch (along San Joaquin River front); , e of Antioch 9 Comment
Read comments May 25 2007
  CAS-BOT-BC187857  Lupinus chamissonis John Thomas Howell 1926-12-27 2272 Contra Costa 1.5 miles S of Oakley Comment
  POM10925  Lupinus densiflorus var. aureus Chestnut, E. R. Drew 1889-4-18 s.n. Contra Costa Brentwood. Comment
  POM181434  Lupinus densiflorus var. aureus Ira L. Higgins 1930-4-17 4568 Contra Costa Hillsides near Mountain House, Altamont Pass. Comment
  SEINET13198366 Image available Lupinus formosus A. G. Vestal 1947-6-2 s.n. Contra Costa Comment
  UC1795812  Lupinus formosus var. formosus Barbara Ertter, Brad Olson 1994-5-7 12751 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge 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
  UCR274616  Lupinus latifolius Daisie Huang 2006-7-18 60718- 05 Contra Costa Pinehurst Road above Moraga Road 156 Comment
  CDA27486  Lupinus microcarpus var. densiflorus A. G. Murdock, D. G. Kelch 2003-6-2 88 Contra Costa Carquinez Strait Region; Crockett - Eckley. East of pier at base of cliff. Comment
  JEPS65467  Lupinus microcarpus var. microcarpus W. L. Jepson 1921-5-22 9214 Contra Costa Mt. Diablo; Mt. Diablo, s slope 609 Comment
  UC15958  Lupinus microcarpus var. microcarpus A. Eastwood 1894-5-3 Contra Costa Antioch Comment
  UC201028  Lupinus microcarpus var. microcarpus Katharine Brandegee June 1918 Contra Costa Richmond Annex Comment
  JEPS78983  Lupinus microcarpus var. microcarpus Edward Lee with Annetta Carter 1935-6-13 1430 Contra Costa Panhandle Boulevard south Richmond; , Panhandle Boulevard Comment
  SD103751  Lupinus microcarpus var. microcarpus Walter Knight, Irja Knight 1979-5-6 3395 Contra Costa Orinda, Camino del Diablo Comment
  RSA0033776  Lupinus nanus Barbara Ertter, Richard K. Brummitt 1998-5-6 16093 Contra Costa Lower Donner Canyon on north base of Mount Diablo, Hetherington Trail upstream from Donner Cabin. Comment
  UC2028071  Lupinus nanus Barbara Ertter, Tony Morosco 1998-4-12 16002 a Contra Costa Base of Mount Olympia on north side of Mount Diablo, NE of Olympia Trail. Comment
  CDA33853  Lupinus pachylobus D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .105 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  UC2028168  Lupinus pachylobus Barbara Ertter 1998-5-3 16075 Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, near Wall Point. Comment
  JEPS75467  Lupinus succulentus P. F. Yorks 1974-4-6 125 Contra Costa on Hampton Road ca 1.7 km s Bear Creek Road (in Hampton Road Natural Reserve, n of Briones Reservoir); Hampton Road Natural Reserve, n of Briones Reservoir 180 Comment
  SEINET8057995  Lupinus succulentus H. E. Hodge 1956-4-7 13 Contra Costa Tice Canyon Road in Walnut Creek 61 Comment
  UCSB11258  Lupinus succulentus Hayes, Judy 1961-3-30 Contra Costa South Gate of Mount Diablo State Park 182 Comment
  UC691941  Luzula comosa Mary L. Bowerman 1931-2-28 524 Contra Costa n slope Rock City Ridge (= Fossil Ridge, Mount Diablo, near Rock City); Mount Diablo, Rock City Ridge nr Rock City, = Fossil Ridge Comment
  JEPS67204  Luzula macrantha W. L. Jepson 1943-4-24 20761 Contra Costa Vicinity San Francisco Bay, Oakland Hills, Moraga Ridge Comment
Read comments Jan 25 2008
  JEPS78624  Lythrum californicum Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3281 Contra Costa Browns Island, Botany Cove Browns Island; , Botany Cove Comment
  UC692633  Lythrum californicum Mary L. Bowerman 1932-11-26 1672 Contra Costa on n side of road between Sheep Camp Spring and Boulevard Spring (Mount Diablo, Patens Spring); Mount Diablo, Patens Spring Comment
  JEPS112515  Lythrum hyssopifolia D. G. Kelch 2004-7-9 04 .302 Contra Costa McEwen Road. McEwen marsh. North of Cummings Skyway 130 Comment
  JEPS45963  Lythrum hyssopifolia W. L. Jepson 1922-7-9 9734 Contra Costa Richmond 6 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
  RSA0015854  Lythrum hyssopifolia Mary L. Bowerman 1932-8-27 1522 Contra Costa Spring south of Turtle Rock. Comment
  UC2027961  Lythrum hyssopifolia Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15665 Contra Costa Point Richmond, crest of road. Comment
  UC2028361  Lythrum hyssopifolia Barbara Ertter with Tony Morosco 1998-7-11 16364 Contra Costa North base of Mount Diablo, margin of small pond on north side of Bruce Lee Road east of Mitchell Canyon staging area Comment
  UC697172  Madia elegans Mary L. Bowerman 1933-5-17 2106 Contra Costa Curry Canyon brance s of Olafsons' barn Mount Diablo 289 Comment
  UC1952810  Madia elegans Barbara Ertter with Christopher Davidson 2010-9-1 20569 Contra Costa lower Donner Canyon on north base of Mount Diablo Comment
  UC2027823  Madia elegans Barbara Ertter 2000-11-19 17552 Contra Costa Briones Regional Park, Black Oak Trail. Comment
  CAS-BOT-BC344325  Madia exigua Joseph Andorfer Ewan 1936-5-24 9693 Contra Costa West slope Bald Peak Comment
  CAS-BOT-BC344327  Madia exigua John Thomas Howell 1931-5-12 6473 Contra Costa Nortonville Comment
  CHSC39487  Madia gracilis Tyler Williams 1984-4-18 23 Contra Costa Mt. Diablo. On South Park Rd., ca. 20 yd nw of Bridal Nook Picnic Area, on e side of road in Mount Diablo State Park. 533 Comment
  JEPS100178  Madia gracilis G. Smick 2003-4-22 GAS 142 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site 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
  UC2028314  Madia gracilis Barbara Ertter, Susan D'Alcamo 1998-6-12 16162 Contra Costa Summit Road to top of Mount Diablo. Comment
  CAS-BOT-BC324487  Madia radiata K. Brandegee 1908-4-9 50 Contra Costa Near Antioch Comment
  CAS-BOT-BC324491  Madia radiata A. A. Heller 1938-4-9 15015 Contra Costa 3 miles southwest of Antioch Comment
  UC725398  Madia radiata A. A. Heller 1938-4-9 15015 Contra Costa 3 mi sw Antioch Comment
  RSA0008526  Madia radiata A. A. Heller 1938-4-9 s.n. Contra Costa 3 miles southwest of Antioch Comment
  JEPS21968  Madia sativa G. Thomas Robbins with S. Galen Smith 1958-6-2 3848 B Contra Costa along Franklin Canyon Road (State Hwy 4) south and above Refugio Valley (just e of Hercules city boundary, around edge of earth dump on grassy slope) 18 Comment
  RSA262369  Malacothamnus hallii Don C. Elfving 1964-4-26 62 Contra Costa North Gate Road, 3 miles from base of Mt. Diablo Comment
  JEPS99508  Malacothrix clevelandii Mary Bowerman 1978-5-14 Contra Costa Mount Diablo. Old wagon trail to mine on E face of Eagle Peak. Comment
  JEPS36614  Malacothrix coulteri R. F. Hoover 1935-3-10 382 Contra Costa Kirker Pass Comment
  CAS-BOT-BC347389  Malacothrix floccifera R. Bacigalupi 1927-5-13 1573 Contra Costa Summit Mt. Diablo Comment
  UC691447  Malacothrix floccifera Mary L. Bowerman 1933-4-25 1908 Contra Costa ridge ese North Peak; Mount Diablo 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
  UC1795778  Malva parviflora Barbara Ertter, Mary Bowerman 1995-6-11 14248 Contra Costa Shell Ridge Recreation Area southeast of Walnut Creek, at west base Mt. Diablo.; annual grassland near Indian Valley School entrance, clay soil (planted Clarkia also present). 91 Comment
  CAS-BOT-BC5566  Malvastrum hallii Adolph Daniel Edward Elmer 1903-5-1 4395 Contra Costa Mount Diablo Comment
  RSA0042211  Malvella leprosa D. G. Kelch 2006-7-14 06 .332 Contra Costa Between Rte 4 and Carbon Rd. E Rodeo. 24 Comment
  RSA22265  Malvella leprosa L. S. Rose 1938-10-28 38310 Contra Costa Byron 3 Comment
  CHSC21640  Marah fabacea Willis Ball 1975-3-2 466 Contra Costa In area #4. On hill top ca. 50 yds e of large willow trees at ne end of lake. Contra Loma Regional Park. 53 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
  UC1122829  Marah fabacea R. W. Lundh 1933-3-15 214 Contra Costa Vaca Canyon Concord Quadrangle Comment
  POM226096  Marah fabacea J. T. Howell 1933-3-29 10902 Contra Costa Nortonville hills. Comment
  SEINET8551076  Marah fabacea R. R. Halse 1988-2-20 3540 Contra Costa Along Marsh Creek Road, in the Dark Canyon area, 4 miles W of its junction with Deer Valley Road, near 13980 Marsh Creek Road, Clayton.. 156 Comment
  CHSC46934  Marah oregana Robert A. Schlising; Anna Eagle 1962-5-29 2282 Contra Costa Roadside. Comment
  JEPS63279  Marrubium vulgare L. Tinsley Sept. 1925 38 Contra Costa Mt. Diablo Comment
  CDA9493  Marsilea vestita D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .217 Contra Costa Byron Airport. Comment
  CHSC116621  Matricaria discoidea Lowell Ahart; Josephine Guardino 2016-4-19 20766 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
  UC691667  Matricaria discoidea Mary L. Bowerman 1932-5-6 1414 Contra Costa Mitchell Canyon Mount Diablo 213 Comment
  CAS-BOT-BC348049  Matricaria discoidea Mary L. Bowerman 1931-4-4 653 Contra Costa Mount Diablo. North Road 4.5 miles from North Gate Comment
  CAS-BOT-BC348260  Matricaria occidentalis R. E. Frenkel 1963-5-15 200 Contra Costa East of Bixler Road between Marsh Creek Road and Point of Timber Road, about 200 yards north of pink house on west side of Road, and about 10-20 m. east of fence Comment
  UC1197429  Medicago polymorpha Joseph P. Tracy 1934-4-30 13190 Contra Costa between Lafayette and Moraga 152 Comment
  JEPS127043  Medicago polymorpha var. brevispina Lowell Ahart, Josephine Guardino 2016-4-19 20763 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  HSC24000  Medicago sativa Tim Baroni 1971-10-16 199 Contra Costa Pinole, Pinole Valley Rd. 100 Yds. E of the entrance to Wright Ave. Comment
  CAS-BOT-BC271218  Melica californica E. E. Stanford 1930-5-24 1516 Contra Costa Marsh Creek Canyon Comment
  CAS-BOT-BC271223  Melica californica Mary L. Bowerman 1935-4-17 2829 Contra Costa North Road 2 miles from North Gate, Mount Diablo 237 Comment
  JEPS25127  Melica californica G. Thomas Robbins 1959-4-18 3994 Contra Costa near and n Pt. Richmond (along Western Drive, at the w base of Potrero Hills); Richmond, Potrero Hills 7 Comment
  RSA762310  Melica californica William J. Ferlatte, L. M. Moe 1970-4-27 1260 Contra Costa San Francisco Bay, Red Rock Island. Comment
  SD218256  Melica californica William J. Ferlatte, L. Maynard Moe 1970-4-27 1260 Contra Costa San Francisco Bay, Red Rock Island, near summit. Comment
  UC53671  Melica californica J. Burtt Davy Apr 7 1895-Apr 8 1895 928 Contra Costa Antioch Comment
  UC691168  Melica californica Mary L. Bowerman 1933-4-26 1934 Contra Costa Perkins Canyon Mount Diablo (branch between the main e ridge of North Peak and the ridge to its south) 487 Comment
  CAS-BOT-BC271221  Melica californica Mary L. Bowerman 1935-5-25 3070 Contra Costa South of the summit, east of the hairpin turn on road, Mount Diablo 1066 Comment
  UC2028478  Melica californica Barbara Ertter with Richard K. Brummitt 1998-5-6 16102 Contra Costa Point San Pablo west of Richmond, crest of road to yacht harbor Comment
  CAS-BOT-BC281431  Melica imperfecta D. E. Breedlove 1970-4-18 17433 Contra Costa At the N edge of Lafayette above Laurel Drive 243 Comment
  CAS-BOT-BC281433  Melica imperfecta Mary L. Bowerman 1931-4-18 714 Contra Costa Mount Diablo. Sycamore Canyon: moist bank where the chaparral does not extend down to the trail 335 Comment
  JEPS99984  Melica torreyana G. Smick 2003-4-29 GAS 156 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  POM204767  Melica torreyana C. F. Baker 1903-4-28 2815 Contra Costa Mitchell's Canyon, Mt. Diablo. Comment
  UCD161481  Melica torreyana A. A. Beettle 1941-3-28 1723 Contra Costa near Orinda. Comment
  JEPS127091  Melilotus indicus Lowell Ahart, Josephine Guardino 2016-4-19 20801 Contra Costa 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. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Spring USGS 7.5' Quad. Comment
  CDA1109  Melissa officinalis D. G. Kelch 2005-7-14 5 .462 Contra Costa Carquinez Strait Region; Arroyo del Hambre; Franklin Creek near Glen Frazier. Comment
  UC634868  Melissa officinalis H. L. Mason 1925-9-17 2235 Contra Costa stream in Redwood Canyon Redwood Canyon Comment
  UCD150883  Mentha X piperita James A. Neilson Jr. 1972-11-9 s.n. Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 1 Comment
  RSA0027699  Mentha aquatica Barbara Ertter 1996-9-19 15292 Contra Costa Antioch Marina. Edge of marsh near parking lot. Comment
  JEPS112484  Mentha spicata var. spicata D. G. Kelch 2004-4-30 04 .159 Contra Costa Alhambra Valley Along Alhambra Valley Road 120 Comment
  UC1950230  Mentzelia affinis Barbara Ertter 1992-3-8 10911 Contra Costa Contra Loma Regional Park; hill ca 1/2 mi SW of reservoir Comment
  RSA296862  Mentzelia micrantha W. L. Jepson 1919-6-8 83314 Contra Costa Mt. Diablo Comment
  CDA32927  Micropus californicus D. G. Kelch 2009-5-24 9 .296 Contra Costa Carquinez Strait; Carquinez Loop Trail S of Ozol, S-SW of Martinez, nr Wolcott Ln . Comment
  CAS-BOT-BC348365  Micropus californicus var. californicus Alice Eastwood 1915-5-30 4470 Contra Costa Mt. Diablo Comment
  JEPS40631  Micropus californicus var. californicus W. L. Jepson 1922-5-23 9664 Contra Costa Mt. Diablo Comment
  RSA721204  Micropus californicus var. californicus Barbara Ertter, Mary Bowerman, et al. 1995-5-7 14050 Contra Costa Three-Springs Trail on NE side of Mt. Diablo SE of Clayton 305 Comment
  UCD77859  Microseris douglasii Robert E. Preston 1997-3-8 1018 Contra Costa Black Diamond Mines Regional Park, along Stewartsville Trail. 91 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
  JEPS36178  Microseris douglasii subsp. douglasii W. L. Jepson 1918-6-3 7591 Contra Costa Donner Canyon Mt. Diablo Comment
  UC1795682  Microseris douglasii subsp. douglasii Barbara Ertter, Dale Sanders, Dan Norris 1994-3-26 12336 a Contra Costa Peyton Hill east of I-680 east of Martinez, south of Waterfront Road Comment
  UC565499  Microseris douglasii subsp. douglasii H. L. Mason 1929-3-31 5142 Contra Costa Briones Valley Comment
  UC691459  Microseris douglasii subsp. douglasii Mary L. Bowerman 1931-4-4 638 Contra Costa 2 mi by road from North Gate (west entrance); Mount Diablo Comment
  RSA0027886  Microseris douglasii subsp. douglasii Barbara Ertter, Stu Garrett 1997-3-29 15527 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  SEINET10761171  Microseris douglasii subsp. douglasii Barbara J. Ertter, Stu Garrett 1997-3-29 Ertter 15527 Contra Costa West side Mount Diablo, Burma Road on Long Ridge, serpentine area (already drying out after 2 months without rain). Comment
  UC2027851  Microseris douglasii subsp. douglasii Barbara Ertter with Stu Garrett 1997-3-29 15527 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  CAS-BOT-BC349093  Microseris douglasii subsp. tenella Mary L. Bowerman 1933-4-15 1847 Contra Costa Mount Diablo. Canyon south of Arroyo del Cerro Comment
  JEPS14576  Microseris douglasii subsp. tenella G. Thomas Robbins with Peter H. Raven 1956-4-28 3665 Contra Costa just s El Cerrito city limits (along Arlington Ave at Kenilworth Dr); Berkeley Hills 213 Comment
  POM53410  Microseris elegans C. F. Baker 1903-4-28 2830 Contra Costa Marsh Creek, Mt. Diablo. Comment
  CAS-BOT-BC322766  Microseris sylvatica Alice Eastwood; John Thomas Howell 1936-4-19 2136 Contra Costa Nortonvile Comment
  JEPS36177  Microseris sylvatica W. L. Jepson 1918-6-3 7590 Contra Costa Donner Canyon Mt. Diablo 304 Comment
  UC691442  Microseris sylvatica Mary L. Bowerman 1931-5-2 790 Contra Costa foot of Eagle Point ridge Mount Diablo Comment
  JEPS100144  Mimulus aurantiacus G. Smick 2003-3-13 GAS 66 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  LA209141  Mimulus aurantiacus H. Lewis; 1940-7-5 sn Contra Costa E of Berkeley Comment
  LA209144  Mimulus aurantiacus H. Lewis; 1940-7-5 sn Contra Costa E of Berkeley Comment
  UC943784  Mimulus aurantiacus var. aurantiacus H. E. McMinn 1945-2-27 5455 Contra Costa along road near base Mt. Diablo Comment
  UC2028091  Mimulus guttatus Barbara Ertter, Tony Morosco 1998-4-12 16001 Contra Costa Base of Mount Olympia on north side of Mount Diablo, NE of Olympia Trail. Comment
  CAS-BOT-BC151466  Mimulus latidens T. S. Brandegee 1888-5-1 s.n. Contra Costa Antioch Comment
  UC1818898  Minuartia pusilla Barbara Ertter, Mary Bowerman et al. 1995-5-7 14064 Contra Costa Three-Springs Trail on NE side of Mount Diablo SE of Clayton, small serpentine patch at road junction Comment
  UC691408  Monardella douglasii Mary L. Bowerman 1935-6-1 3116 Contra Costa Diablo Trail Mount Diablo, Meridian Peak 1082 Comment
  CAS-BOT-BC220515  Monardella villosa Mary L. Bowerman 1938-6-21 3689 Contra Costa Mount Diablo Comment
  JEPS75499  Monardella villosa subsp. villosa P. F. Yorks 1974-6-16 180 Contra Costa ca. 1.6 km south of Bear Creek Road (on Hampton Road, north of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  UC691416  Monardella villosa subsp. villosa Mary L. Bowerman 1938-6-21 3689 Contra Costa summit Mount Diablo Comment
  SBBG27321  Monolopia gracilens L. S. Rose 1935-5-16 35166 Contra Costa Mt Diablo Comment
  UC691683  Monolopia gracilens Mary L. Bowerman 1933-5-2 1946 Contra Costa below Pioneer Camp; Mount Diablo 762 Comment
  CHSC23335  Monolopia major Willis Ball 1975-3-2 474 Contra Costa Contra Loma Regional Park. In area #2. On s side of hill ca. 50 yds ne of single restroom at sw end of lake. Approximately half way up the hill. 53 Comment
  UC407362  Monolopia major Ira L. Wiggins 1930-4-17 4584 Contra Costa 0.25 mi s Byron Comment
  UC50097  Monolopia major H. P. Chandler 1900-3-23 582 Contra Costa Briones Valley Mount Diablo Region Comment
Read comments Feb 9 2019
  UC691658  Monolopia major Mary L. Bowerman 1933-4-15 1862 Contra Costa second ridge s Arroyo del Cerro (w of outcrop); Mount Diablo 396 Comment
  UC75188  Monolopia major unknown 1908-4-27 2796 Contra Costa Byron Comment
  CAS-BOT-BC349612  Monolopia major Brandegee No date on label s.n. Contra Costa Antioch Comment
  CAS-BOT-BC444826  Montia fontana Mary L. Bowerman 1939-3-31 3736 Contra Costa Mount Diablo. Spring in bend of road to Barbecue Terrace (off South Road) Comment
  UC1198226  Muilla maritima J. P. Tracy 1900-3-24 607 Contra Costa near Point Richmond; Region about San Francisco Bay 3 Comment
  UC1101358  Myosurus Herbert L. Mason 1952-3-13 14200 A Contra Costa 3.3 mi s Byron Comment
  UC1114819  Myosurus M. K. Curran 1884-1 Contra Costa Antioch Comment
  CAS-BOT-BC83287  Myosurus minimus Herbert L. Mason 1952-4-14 14263 Contra Costa 3.5 miles south of Byron. Comment
  CAS-BOT-BC83291  Myosurus minimus Herbert L. Mason 1952-4-26 14268 Contra Costa 3.5 miles south of Byron. Comment
  CAS-BOT-BC83297  Myosurus minimus Peter H. Raven; D. Stone; H. L. Mason; R. Ornduff; et al. 1957-4-4 10583 Contra Costa 3.0 miles south of Byron. Comment
  CHSC22992  Myosurus minimus Robert A. Schlising 1962-3-24 2107 Contra Costa Coast Ranges. 'Bee meadow' near Jct Hwy 4 and Bixler Rd. Comment
  UC1738087  Myosurus minimus H. L. Mason 1956-5-24 14268 B-1 Contra Costa 3 mi S of Byron ( on the road to Herdlyn) Comment
  UC1738088  Myosurus minimus D. E. Stone 1957-3-15 14268 B-6 Contra Costa 3 mi S of Byron ( on road to Herdlyn) Comment
  UC407383  Myosurus minimus Ira L. Wiggins 1930-4-17 4580 Contra Costa 1/4 mi s Byron Comment
  UC1101331  Myosurus sessilis Herbert L. Mason 1952-4-26 14269 Contra Costa 3.5 mi s of Byron Comment
  SBBG115937  Myriophyllum sibiricum M. R. Bell 1950-10-9 Contra Costa near Concord, from stock pond on farm of E. J. Mangini Comment
  UCD18346  Myriophyllum sibiricum M. R. Bell 1950-10-9 s.n. Contra Costa near Concord, from stock pond on farm of E.J. Mangini. Comment
  UC2048019  Myriopteris covillei C. J. Rothfels with F. W. Li, J. Sinton, R. Rahaman 2016-1-31 4700 Contra Costa Mount Diablo. Along the Waterfalls Trail shortly after it branches off from the Donner Creek Fire Road. Comment
  RSA755539  Najas guadalupensis Barbara Ertter, Brad Olson 1991-9-28 10838 Contra Costa San Pablo Reservoir between Orinda and El Sobrante 91 Comment
  JEPS102918  Narcissus tazetta Barbara Ertter 1998-1-25 15910 Contra Costa so of Donner Canyon trailhead (Back Canyon Rd.); Mount Diablo Comment
  UC1133134  Nassella cernua C. M. Belshaw 1936-5-9 2083 Contra Costa 1/2 mi n Nortonville (Plot 14); Mt. Diablo Comment
  CDA31836  Nassella lepida D. G. Kelch 2008-4-24 8 .062 Contra Costa Carquinez Strait; W of Ozol Rock ~2 km W of Martinez. Comment
  UC692413  Nassella lepida Mary L. Bowerman 1932-4-27 1387 Contra Costa canyon w Riggs Canyon (w exposure, s face of mt); Mount Diablo, Oyster Ridge 335 Comment
  UCD87824  Nassella lepida Beecher Crampton 1956-5-14 3422 Contra Costa 2 miles west of Martinez, on road to Crockett. Comment
  CAS-BOT-BC260127  Nassella pulchra A. A. Beetle 1941-3-28 1718 Contra Costa Orinda Comment
  CAS-BOT-BC260131  Nassella pulchra Mary L. Bowerman 1933-5-18 2125 Contra Costa Mount Diablo. Blackberry Spring Comment
  CDA1583  Nassella pulchra D. G. Kelch 2002-5-24 2 .021 Contra Costa Carquinez Strait; 5th St. Prairie, Crockett. Comment
  UCD87635  Nassella pulchra P. B. Kennedy 1914-3-15 4610 Contra Costa Sunset Cemetery. Comment
  JEPS70391  Navarretia mellita Mary L. Bowerman 1931-6-2 910 Contra Costa Gregory Ranch Road Mount Diablo Comment
  SEINET196200  Navarretia mellita Herbert L. Mason 1945-6-12 Contra Costa Ridge SE fo Mount.Diablo near summit of road up Marsh Creek. Comment
  UC691607  Navarretia mellita Mary L. Bowerman 1931-5-31 907 Contra Costa n slope of 1778 point Mount Diablo, Fossil Ridge (Rock City Ridge) Comment
  CAS-BOT-BC230478  Navarretia nigelliformis var. nigelliformis K. Curran 1884-6-1 s.n. Contra Costa Antioch Comment
  UC1124139  Navarretia pubescens C. M. Belshaw 1936-5-13 2115 Contra Costa 3.7 mi ene Tassajero; Mt. Diablo Quad. 670 Comment
  UC30206  Navarretia pubescens W. H. Brewer 1862-5-19 1113 Contra Costa n of Kirkers Pass Comment
  UCR197895  Navarretia pubescens Beecher Crampton 1949-9-11 493 Contra Costa Mount Diablo State Park, below main road, opposite Oak Knoll Picnic area 518 Comment
  UCD32434  Navarretia pubescens Beecher Crampton 1950-7-2 599 Contra Costa Contra Costa County, north base of Mt. Diablo, Mitchell Creek Canyon, south side but northen exposure. 259 Comment
  JEPS112009  Navarretia squarrosa Christopher Thayer 1995-6-5 Contra Costa West of Pinole Peak 274 Comment
  UCD36028  Navarretia squarrosa Beecher Crampton 1949-6-26 474 Contra Costa Contra Cost County, between Pinole and San Pablo, along US Highway 40, above Garrity Creek. 30 Comment
  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
  JEPS103662  Navarretia viscidula David Gowen 2003-7-9 Contra Costa Lime Ridge Open Space, grassy areas at N end 188 Comment
  JEPS3210  Nemophila heterophylla L. Constance, J. L. Morrison 1938-5-5 2190 Contra Costa above Deer Flat (near head of Mitchell Canyon, nw slope of Mount Diablo); nw slope Mount Diablo, nr head Mitchell Canyon 670 Comment
  UC1301148  Nemophila heterophylla Helen K. Sharsmith 1963-3-3 5188 Contra Costa e St. Mary's College (near Moraga, Las Trampas Canyon); San Francisco Bay Region, Las Trampas Cyn, nr Moraga 259 Comment
  UC24180  Nemophila heterophylla Jos. Burtt Davy 1901-4-21 6922 Contra Costa Wildcat Canyon Comment
  RSA75801  Nemophila heterophylla Lincoln Constance 1938-3-22 2031 Contra Costa Edge of Wildcat Canyon on north slope of the Berkeley Hills. 366 Comment
  SEINET4080336  Nemophila heterophylla M. W. Garcia 1960-1 60070 Contra Costa Near drinking fountain on Mount Diablo. Lower Terrace Camp. 609 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
  UC596370  Nemophila pedunculata R. F. Hoover 1938-3-5 2816 Contra Costa mouth of Kirker Creek Canyon Comment
  CDA22540  Nicotiana acuminata var. multiflora Slattergren 2008-7-22 PDR# 1373540 Contra Costa Walnut Creek, 1575 North Gate Rd. 0 Comment
  POM300990  Nicotiana bigelovii Mary L. Bowerman 1936-6-20 3416 Contra Costa Ridge west of Mount Zion, west side. 213 Comment
  CDA5795  Nicotiana tabacum R. DeBoer 1966-12-2 Contra Costa Golden Gate Fish Co., Point San Pablo, Richmond. 0 Comment
  JEPS112074  Oemleria cerasiformis D. G. Kelch 2003-2-7 03 .35 Contra Costa Sky Ranch. Dutra Road path ~700-1000 ft. 250 Comment
  RSA128906  Oemleria cerasiformis Peter H. Raven 1950-3-5 1409 Contra Costa Happy Valley Road, 2.8 miles above intersection with Upper Happy Valley road. 244 Comment
  UC1128080  Oemleria cerasiformis R. W. Lundh 1933-4-2 226 Contra Costa San Francisco Quad. Comment
  UC691108  Oemleria cerasiformis Mary L. Bowerman 1931-5-21 891 Contra Costa Curry Cave Point trail Mount Diablo (just above stream bed on w side) Comment
  CDA38497  Oenanthe sarmentosa D. G. Kelch 2003-8-13 3 .1 Contra Costa Carquinez Strait Region; Martinez Marsh. 0 Comment
  UC1606350  Oenanthe sarmentosa Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10680 Contra Costa n. Pittsburg (near confluence of Sacramento & San Joaquin Rivers, opposite Pittsburg Marina, Browns Island, marsh at edge of lagoon in center of w. end of island); Browns Island Comment
  JEPS96237  Oenothera curtiflora Barbara Ertter 1991-9-22 10827 Contra Costa sw El Cerrito (Point Isabel Regional Shoreline); Point Isabel Regional Shoreline Comment
  CAS-BOT-BC171588  Oenothera deltoides subsp. howellii J. H. Thomas 1953-4-25 3004 Contra Costa Antioch sand hills along San Joaquin River, 2 miles west of Antioch Bridge Comment
  CAS-BOT-BC171590  Oenothera deltoides subsp. howellii J. H. Thomas 1949-4-19 314 Contra Costa Antioch sand dunes. Comment
  CAS-BOT-BC171596  Oenothera deltoides subsp. howellii Peter Rubtzoff 1954-9-14 1756 Contra Costa Sand dunes along lower San Joaquin river, east of Antioch Comment
  POM310930  Oenothera deltoides subsp. howellii P. D. Hurd 1952-5-26 s.n. Contra Costa 1 mile east of Antioch in sand dunes, near western margin of San Joaquan River close to its mouth 30 Comment
  UC35411  Oenothera deltoides subsp. howellii J. Burtt Davy 1895-4-7 880 Contra Costa Antioch sandhills Comment
  UC763071  Oenothera deltoides subsp. howellii R. F. Hoover 1937-5-14 2112 Contra Costa Antioch sand-dunes Comment
  RSA119394  Oenothera deltoides subsp. howellii William M. Klein 1958-6-9 440 Contra Costa Sandhills N of Antoch, along the San Joaquin River Channel. 2 Comment
  RSA119417  Oenothera deltoides subsp. howellii William M. Klein 1958-6-9 438 Contra Costa Sandhills N of Antoch, along the San Joaquin River Channel. 2 Comment
  RSA119418  Oenothera deltoides subsp. howellii William M. Klein 1958-6-9 434 Contra Costa Sandhills N of Antoch, along the San Joaquin River Channel. 2 Comment
  RSA0004532  Oenothera deltoides var. howellii Alice Eastwood, J. T. Howell 1936-4-19 2147 Contra Costa Sand dunes at Antioch Comment
  CDA36713  Olea europaea D. G. Kelch 2010-10-5 10 .417 Contra Costa The Delta; Just east of Antioch bridge. Comment
  CHSC97920  Olea europaea D. G. Kelch 2006-6-23 06 .322B Contra Costa West Valona. West of the Zampa Bridge above San Pablo Ave. Along small stream draining north into the western end of the Carquinez Strait. 91 Comment
  UC2028003  Olea europaea Barbara Ertter with Amy Rusev 1998-1-17 15902 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
  UC444919  Orobanche californica subsp. feudgei T. S. Brandegee June 1884 Contra Costa Antioch. Comment
  UC887954  Orobanche fasciculata Lewis S. Rose 1941-5-15 41243 Contra Costa Mt. Diablo, near summit. Comment
  CAS-BOT-BC499851  Orobanche fasciculata Alice Eastwood 1915-5-30 4536 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC499853  Orobanche fasciculata Paul F. Covel 1936-5-17 124 Contra Costa Mt. Diablo (near summit) Comment
  JEPS102913  Orobanche pinorum Christopher Thayer 1995-6-27 Contra Costa Mount Diablo State Park, below Prospectors Gap along trail to Murchio Gap Comment
  UC27900  Orobanche uniflora subsp. occidentalis W. H. Brewer 1862-5-23 1152 Contra Costa SE of Mount Diablo. Comment
  CAS-BOT-BC500251  Orobanche uniflora subsp. occidentalis John Thomas Howell 1940-4-21 15401 Contra Costa Pine Canyon, Mt. Diablo Comment
  CAS-BOT-BC502956  Orobanche vallicola Paul F. Covel 1938-7-1 1470 Contra Costa Summit Mt. Diablo Comment
  RSA516599  Orthocarpus densiflorus R. C. Bacigalupi 1956-5-11 5640 Contra Costa Between State Hwy 4 and (Franklin Canyon Rd) Santa Fe Ry.[RR] right-of-way, 1/4 mile E of jct of this road with US 40, 1.3 miles E of Pinole. 23 Comment
  UC1555267  Osmorhiza berteroi R. C. Stebbins 1988-5-25 Contra Costa Memory and Packrat trails Tilden Park, Tilden Nature Area Comment
  UC692362  Osmorhiza brachypoda Mary L. Bowerman 1933-5-17 2108 Contra Costa branch of Curry due s Olafson's barn (near stream bottom); Mount Diablo 289 Comment
  SEINET3840906  Oxalis carnosa Unknown 1976-3-25 2117 Contra Costa International Succulent Institute, 10 Corte Sombrita, between Maraga and Orinda Comment
  UC2029198  Oxalis pes-caprae Barbara Ertter 2003-2-8 18093 Contra Costa Richmond Field Station (UC-Berkeley) Comment
  RSA722062  Panicum capillare Barbara Ertter, Lincoln Constance 1995-6-16 14262 Contra Costa East edge Dow Marsh on west side Antioch Marina, south side San Joaquin River Comment
  RSA721592  Papaver californicum Mary L. Bowerman 1978-5-14 s.n. Contra Costa Mount Diablo. E side of Eagle Peak, old mine wagon trail up Black Canyon. Comment
  UCD96018  Papaver heterophyllum Cliff Low 1978-5-19 16 Contra Costa Back Canyon Creek, east of Eagle Peak on Mount Diablo. 304 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
  SBBG115829  Parapholis incurva K. Brandegee 1918-5-8 Contra Costa Byron Hot Springs Comment
  UCD88661  Parapholis incurva P. B. Kennedy 1928-5-12 s.n. Contra Costa Byron Hot Springs. Comment
  CDA35606  Parentucellia viscosa Deviney 2011-7-1 PDR# 1645174 Contra Costa Port Costa, East Bay Regional Park Carquinez (Demartini Ranch), McEwen Road near John Muir Parkway. 0 Comment
  UC1111579  Parietaria hespera var. californica Herbert L. Mason 1929-5-5 5260 Contra Costa Nortonville Comment
  JEPS105696  Parietaria hespera var. californica David Gowen 2004-4-16 31 Contra Costa Black Diamond Mines Regional Preserve. Canyon that heads south of the Nortonville townsite. Comment
  JEPS111919  Parietaria judaica Dean G. Kelch and Andrew G. Murdock 2004-4-11 DGK 04 .078 Contra Costa Crockett - Crolona Heights. 6th Street at Lillian Street. Comment
  JEPS100036  Paspalum dilatatum S. O'Neil 2003-9-16 SEO 46 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA118092  Paspalum dilatatum J. T. Howell 1954-9-5 30025 Contra Costa Along road, Marsh Creek Springs Park Comment
  CDA41866  Pedicularis densiflora D. G. Kelch, A. G. Murdock 2003-3-21 3 .041 Contra Costa Carquinez Strait Region; Martinez; West: Ozol Rock and Scenic Drive. Comment
  UC692690  Pediomelum californicum Mary L. Bowerman 1935-6-1 3114 Contra Costa summit Mount Diablo Mount Diablo, summit (between the one-way roads) Comment
  JEPS106989  Pellaea andromedifolia J. Greenhouse with Kevin Hintsa 2004-4-5 5087 Contra Costa Mt. Diablo, Fire Interpretive Trail, Devil's Pulpit 1088 Comment
  RSA686788  Pellaea andromedifolia Mark Morris 1929-03 14912 Contra Costa Mt. Diablo. Comment
  RSA686787  Pellaea andromedifolia H. de Forest 1930-4-6 s.n. Contra Costa SE of Mortonville. 274 Comment
  CAS-BOT-BC67559  Pellaea mucronata Mary L. Bowerman 1933-3-25 1774 Contra Costa Mount Diablo - ridge north of Emmons Canyon. 335 Comment
  UC1795797  Pellaea mucronata var. mucronata Barbara Ertter, Mary L. Bowerman 1994-6-19 12856 a Contra Costa Mt. Diablo State Park east of Walnut Creek; scrub oak thicket north road, north of lower-summit parking lot, next to drainage on N. facing slope. Comment
  JEPS15174  Penstemon centranthifolius C. M. Belshaw 1936-5-9 2081 Contra Costa near Plot 14 (Nortonville); Mt. Diablo Quad., Nortonville Comment
  NY583832  Penstemon centranthifolius L. S. Rose 1936-4-24 36158 Contra Costa 3 miles east of Antioch 15.2 Comment
  POM14647  Penstemon centranthifolius C. F. Baker 1903-4-25 2938 Contra Costa Antioch. Comment
  UC2028335  Penstemon centranthifolius Barbara Ertter 1991-5-5 9775 Contra Costa Black Diamond Mines Regional Preserve S of Pittsburg, S side of Rose Hill above Nortonville Pass Comment
  UCD124087  Penstemon centranthifolius M. Wiesendanger 1925-5-1 1481 Contra Costa San Miguel. Comment
  UC1050060  Penstemon cordifolius N. Floy Bracelin 1941-7-13 1491 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  POM14652  Penstemon heterophyllus subsp. purdyi C. F. Baker 1903-4-28 2872 Contra Costa Marsh Creek, Mt. Diablo. Comment
  RSA0027922  Penstemon heterophyllus subsp. purdyi Barbara J. Ertter 1998-4-4 15972 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, Quarry Hill. Comment
  UC691517  Penstemon heterophyllus var. heterophyllus Mary L. Bowerman 1930-6-7 268 Contra Costa Meridian Peak summit (Meridian Peak crossed out) Mount Diablo Comment
  UC1050858  Penstemon heterophyllus var. purdyi N. Floy Bracelin 1941-5-18 1319 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  RSA93278  Pentachaeta alsinoides Alice Eastwood, J. T. Howell 1936-4-19 2138 Contra Costa Nortonville. Comment
  RSA722064  Pentachaeta alsinoides Barbara Ertter, Lisa Schultheis 1995-4-27 14006 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; northwest side of open grassy ridge at end of Arbolado Drive. 122 Comment
  RSA93286  Pentachaeta exilis Alice Eastwood, J. T. Howell 1936-4-19 2137 Contra Costa Nortonville. Comment
  UC133407  Pentachaeta exilis C. F. Baker 1923-4-28 2826 Contra Costa Marsh creek Mount Diablo Comment
  UC692564  Perideridia californica Mary L. Bowerman 1935-6-15 3134 Contra Costa Mitchell Canyon Mount Diablo (in stones of streambed at point where stream disappears) 640 Comment
  UC691810  Perideridia oregana Mary L. Bowerman 1930-8-31 447 a Contra Costa Dan Cook Canyon Mount Diablo (open area at head (C.C.C. camp built there later)) Comment
  JEPS125632  Persicaria hydropiperoides Daniel Slakey with CNPS Volunteers 2015-9-12 226 Contra Costa Browns Island, northern part of Crooked Slough. Comment
  CAS-BOT-BC419324  Persicaria punctata Brian Atwater 1978-10-24 BA- 162 Contra Costa Between Bethel Island and Holland Tract Comment
  JEPS1458  Phacelia breweri Mary L. Bowerman 1935-4-26 2898 Contra Costa w Indian Ceremonial Spring; Mount Diablo 1021 Comment
  UC24298  Phacelia breweri Harley P. Chandler 1901-4-5 969 Contra Costa Mt. Diablo Mt. Diablo (type locality) Comment
  UC24300  Phacelia breweri Edw. L. Greene 1892-6-20 Contra Costa Mt. Diablo Comment
  UC880994  Phacelia breweri H. M. Evans 1921-4-30 Contra Costa Mt. Diablo Comment
  UC880995  Phacelia breweri Alice Eastwood 1915-5-30 4487 Contra Costa near type locality Mt. Diablo Comment
  POM298633  Phacelia californica Lincoln Constance 1940-3-16 2524 Contra Costa Margin of San Francisco Bay, Point Richmond. 15 Comment
  RSA42303  Phacelia californica Lincoln Constance 1940-3-16 2524 Contra Costa Margin of San Francisco Bay, Point Richmond. 15 Comment
  JEPS2178  Phacelia cicutaria var. cicutaria M. K. Curran 1884-1 Contra Costa Antioch Comment
Read comments Feb 9 2013
  CHSC23115  Phacelia ciliata Robert A. Schlising; Botany 299 class 1962-3-24 2105 Contra Costa In disturbed orchard, along Marsh Creek Road, about 4 miles 2 of Byron. Comment
  SEINET3158089  Phacelia ciliata L. S. Rose 1937-3-26 37013 Contra Costa Brentwood 6 Comment
  RSA755524  Phacelia ciliata Barbara Ertter 1992-3-8 10910 Contra Costa NE edge of Black Diamond Mines Regional Preserve, NE-heading canyon with steep loose sides ca. 1/2 mile west of junction of Stewartville Trail and Frederickson Lane. Comment
  UC672416  Phacelia distans Herbert L. Mason 1928-4-29 4422 Contra Costa Sycamore Canyon Mount Diablo Comment
  RSA276851  Phacelia distans James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  RSA74783  Phacelia distans F. W. Peirson 1923-7-1 5302 Contra Costa Near summit of Mt. Diablo. Comment
  UC672425  Phacelia distans Herbert L. Mason 1929-3-15 5053 Contra Costa canyon back of Nortonville Comment
  UCD120388  Phacelia distans Robt. Branstead 1934-3-30 s.n. Contra Costa SW slope of Mt. Diablo. 426 Comment
  UC24350  Phacelia divaricata W. H. Brewer 1862-5-7 1057 Contra Costa summit Monte Diablo Comment
Read comments Sep 7 2009
  UC24356  Phacelia douglasii The Postmaster 1900-3-24 Contra Costa Oakley Comment
  JEPS108316  Phacelia imbricata David Gowen 2005-5-28 393 Contra Costa Mt. Diablo State Park. Just east of Prospectors Gap on dirt road. Comment
  UCSC000586  Phacelia magellanica R. F. Hoover 1938-3-8 2821 Contra Costa Berkeley Country Club Comment
  LA205630  Phacelia perityloides H. M. Hall; F. M. Essig 1916-5-31 10135 Contra Costa Mt. Diablo 347 Comment
Read comments Mar 29 2015
  CAS-BOT-BC154324  Phacelia phacelioides H. L. Mason 1938-5-3 11749 Contra Costa Trail between Juniper Camp and Deer Flat, Mount Diablo Comment
  CAS-BOT-BC154330  Phacelia phacelioides Mrs. E. C. Sutcliffe 1920-5-30 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC154336  Phacelia phacelioides Mary L. Bowerman 1935-5-8 2974 Contra Costa Mount Diablo. Muir Area 1036 Comment
  SEINET5506855  Phacelia phacelioides L. Constance, C. W. Sharsmith 1940-4-27 2574 Contra Costa Mount Diablo, north of Juniper Camp 762 Comment
  JEPS99583  Phacelia rattanii Mary Bowerman 1994-6-19 Contra Costa Mount Diablo, Muir aarea, 10'W of restroom Comment
  JEPS1330  Phacelia suaveolens Mary L. Bowerman 1933-5-11 2078 Contra Costa w ridge Mount Diablo, Inner Black Hills Comment
  JEPS111840  Phacelia tanacetifolia D. G. Kelch 2004-4-3 04 .56 Contra Costa Crockett-Tormey Headlands west of I-80 and Cummings Skyway junction. 75 Comment
  SEINET3158353  Phacelia tanacetifolia L. S. Rose 1933-4-17 33091 Contra Costa Antioch Comment
  SACT001701  Phalaris arundinacea Malcolm Nobs, S. Smith 1949-7-8 Contra Costa 4 miles north of Kingston Comment
  RSA0029052  Phalaris coerulescens Barbara Ertter 1999-6-12 16713 Contra Costa Black Hawk Ridge road on south side of Mount Diablo, just south of confluence of NE and E forks of Sycamore. Comment
  POM181445  Phalaris lemmonii I. L. Wiggins 1930-4-7 4583 Contra Costa 1/4 mile S of Byron Comment
  RSA129153  Phalaris lemmonii C. M. Belshaw 1936-5-11 2099 Contra Costa 2.5 miles east southeast of Danville 229 Comment
  CDA28947  Phalaris minor D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .246 Contra Costa CA Delta; Along the old San Joaquin River Channel, S of Clifton Court Forebay and SE of Byron. Comment
  CAS-BOT-BC250683  Phalaris paradoxa John Thomas Howell 1933-5-14 11235 Contra Costa St. Mary's College 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
  UCD89357  Phalaris paradoxa Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  UCD89359  Phalaris paradoxa Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  UCD89368  Phalaris paradoxa Beecher Crampton 1956-5-14 3381 Contra Costa 4.5 miles S of Antioch. Comment
  UC691609  Phlox gracilis Mary L. Bowerman 1931-3-14 568 Contra Costa Windy Point Mount Diablo Comment
  JEPS1830  Pholistoma auritum Mary L. Bowerman 1931-4-18 722 Contra Costa Sycamore Canyon 365 Comment
  CDA22381  Phoradendron macrophyllum D. G. Kelch, A. G. Murdock 2005-5-13 5 .235 Contra Costa Carquinez Strait Region; Martinez. South of oil refinery along railroad tracks in fragment of habitat. Comment
  JEPS107085  Phoradendron macrophyllum Barbara Ertter, Brad Olson, Diane Lake, Seth Adams, et al. 1994-9-11 13085 Contra Costa Chaparral Springs addition to Mt. Diablo State Park, north side of Marsh Creek Road at high point southeast of Clayton. Comment
  JEPS78626  Phragmites australis Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3279 Contra Costa Botany Cove Browns Island; , Botany Cove Comment
  UC1607654  Phragmites australis Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, and Amy Hiss 1991-8-18 10707 Contra Costa n Pittsburg (near confluence of Sacramento and San Joaquin Rivers, opposite Pittsburg Marina, near w end of <Browns> Island); Browns Island Comment
  RSA0029680  Phyla nodiflora var. nodiflora Barbara Ertter, Tony Morosco 1998-9-18 16429 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, unmined land near north quarry area [subsequently developed]. 122 Comment
  UC1795816  Pickeringia montana Barbara Ertter, Lisa Schultheis 1995-4-27 14019 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; head of west facing scrub-filled draw (east of golf-course). 182 Comment
  UC692282  Pickeringia montana var. montana Mary L. Bowerman 1933-2-4 1690 Contra Costa flat e Mt. Diablo-North Peak divide; Mount Diablo 822 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-BC76966  Pilularia americana Katharine Brandegee 1909-4-24 s.n. Contra Costa Between Antioch and Marsh Creek, Briones Road. Comment
  POM210012  Pilularia americana Katherine Brandegee 1909-4-24 s.n. Contra Costa Between Antioch and Marsh Creek, Briones Road Comment
  JEPS46917  Pinus attenuata W. L. Jepson 1908-2-23 2984 Contra Costa Moraga Ridge Comment
  UC691929  Pinus attenuata Mary L. Bowerman 1932-3-20 1121 a Contra Costa toward top of middle ridge (in ne fork of creek); Mount Diablo, Inner Black Hills, Sycamore Creek Comment
  CAS-BOT-BC78443  Pinus contorta subsp. murrayana H. M. Hall; H. P. Chandler 1900-7-1 730 Contra Costa South Fork of San Joaquin River Comment
  RSA32648  Pinus coulteri C. B. Wolf, Allen L. Chickering, H. L. Mason 1943-2-28 11442 Contra Costa 1 mile SW of the old coal mining settlement of Nortonville at the Northern base of Mt. Diablo hills. 305 Comment
  UC1134074  Pinus coulteri R. W. Lundh 1932-9-7 162 Contra Costa 1 mi N of Eagle Point 228 Comment
  UC691927  Pinus coulteri Mary L. Bowerman 1931-3-8 565 Contra Costa above Mitchell Rock; Mount Diablo Comment
  UCR143277  Pinus coulteri C. B. Wolf, A. L. Chickering, H. L. Mason 1943-2-28 11442 Contra Costa Central Coast Range, 1 mile SW of old coal mining settlement of Nortonville at northern base of Mt. Diablo hills 427 Comment
  JEPS48211  Pinus sabiniana W. L. Jepson 1901-10-12 1749 Contra Costa Mitchell Canon Mt. Diablo, Mitchell Canon Comment
  UC691271  Piperia Mary L. Bowerman 1938-6-30 3700 Contra Costa Blue Oak Flat Mount Diablo 822 Comment
  JEPS84499  Piperia elegans Jack Stratford 1980-8-6 Contra Costa Huckleberry Trail Huckleberry Botanic Regional Preserve Comment
  UC691270  Piperia michaelii Mary L. Bowerman 1935-5-16 3004 Contra Costa e side North Peak (above Gabriel-Hinks'); Mount Diablo 289 Comment
  UC1614071  Plagiobothrys Charles M. Belshaw 1935-6-24 780 Contra Costa 1/2 mi e of Grizzly Peak (n face of Bald Peak); Bald Peak Comment
  JEPS73694  Plagiobothrys acanthocarpus L. R. Heckard with Wm. Hirano and Ted Niehaus 1968-3-5 1763 Contra Costa along Byron-Bethany road about 3 mi se Byron (at junction of Holey Road, between railroad and hwy) 7 Comment
  UC24549  Plagiobothrys bracteatus W. H. Brewer 1862-4-30 1007 Contra Costa Camp 69 Walnut Creek Comment
  UC691333  Plagiobothrys bracteatus Mary L. Bowerman 1931-4-4 665 Contra Costa margins of dried-up pond w Turtle Rock; Mount Diablo Comment
  RSA721206  Plagiobothrys bracteatus Barbara Ertter 1995-5-7 14031 Contra Costa Three-Springs Trail on NE side of Mt. Diablo SE of Clayton 305 Comment
  UC517994  Plagiobothrys canescens Lewis S. Rose 1933-3-29 33046 Contra Costa Pittsburg Comment
  UC2027838  Plagiobothrys canescens Barbara Ertter with Dan Norris 2001-4-15 17613 Contra Costa West side Mount Diablo, divide NW of pond at base of China Wall formation. Comment
  UC78081  Plagiobothrys fulvus T. S. Brandegee May, 1889 Contra Costa Antioch Comment
  UCD120819  Plagiobothrys fulvus var. campestris Collector unknown Date unknown 73 Contra Costa Lower Curry Creek Canyon, Mt. Diablo. 243 Comment
  CAS-BOT-BC277  Plagiobothrys humistratus M. K. Curran 1884-1-1 s.n. Contra Costa near Antioch Comment
  JEPS116917  Plagiobothrys humistratus David Gowen, Chris Thayer 2009-4-6 983 Contra Costa Cowell Ranch west of dam. Comment
  UC78202  Plagiobothrys stipitatus Mrs. K. Brandegee May 1892 Contra Costa Brentwood Comment
  UC573066  Plagiobothrys stipitatus var. stipitatus H. L. Mason 1929-3-31 5145 Contra Costa Briones Valley Comment
  SD4240  Plagiobothrys tenellus T. S. Brandegee May 1888 Contra Costa Antioch Comment
  UC1178520  Plagiobothrys tenellus Ethel Crum 1936-4-5 1742 Contra Costa two mi w Byron; South Coast Ranges 45 Comment
  UC573071  Plagiobothrys tenellus H. L. Mason 1932-3-20 6847 Contra Costa Antioch sand hills Comment
  UC191656  Plagiobothrys trachycarpus E. L. Greene 1888-3-28 Contra Costa Byron Springs Comment
  UC767584  Plagiobothrys trachycarpus R. F. Hoover 1941-4-12 4840 Contra Costa 1 mi. n. Lone Tree Valley Comment
  UC2029044  Plagiobothrys trachycarpus Barbara Ertter 2000-3-19 16893 Contra Costa southwest flank of Mount Diablo, east of Pine Ridge, below Wall Point Road Comment
  RSA523620  Plantago bigelovii subsp. bigelovii S. Galen Smith, R. C. Bacigalupi 1957-4-28 2851 Contra Costa 1 mile S of Byron. Comment
  CAS-BOT-BC6475  Plantago californica M. K. Curran 1883-1-1 s.n. Contra Costa Antioch Comment
  JEPS15287  Plantago elongata Rimo Bacigalupi with G. T. Robbins 1956-3-26 5525 Contra Costa 1.2 mi n Deer Valley Road junction with Marsh Creek Road (along Deer Valley Road, just n of Briones Valley) 76 Comment
  JEPS15288  Plantago elongata Rimo Bacigalupi with G. T. Robbins 1956-3-26 5528 Contra Costa about 1 mi n Briones Valley (along Deer Valley Road); Deer Valley 76 Comment
  OBI11669  Plantago elongata Robert F. Hoover 1967-4-28 10516 a Contra Costa Byron Hot Springs Comment
  JEPS111997  Plantago erecta D. G. Kelch 2003-3-21 03 .74 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 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
  POM300989  Plantago erecta Mary L. Bowerman 1933-4-15 1848 Contra Costa Canyon S of Arroyo del Cerro Comment
  UC1950198  Plantago erecta Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8141 Contra Costa sink W and adjacent to Clifton Court Forebay, ca 15 airmiles SW of Stockton Comment
  JEPS111994  Plantago major D. G. Kelch 2004-4-24 04 .103 Contra Costa Ca ada del Cierbo Upper Ca ada de Cierbo on fire road to cow barn along Cummings Skyway 70 Comment
  JEPS21710  Plantago major John Thomas Howell 1955-8-24 30898 Contra Costa near Diablo Country Club Comment
  HSC16802  Platystemon californicus J. Wendell Howe 1930-3-30 83 Contra Costa Orinda Comment
  UC50152  Platystemon californicus W. H. Brewer 1862-5-15 1095 Contra Costa Kirker's Pass Diablo Mountain (Diablo Mountain); , Kirker's Pass Comment
  PASA293  Plectritis ciliosa Annetta Carter 1929-3-31 Contra Costa Near Clayton Comment
  POM59719  Plectritis macrocera C. F. Baker 1903-4-28 2813 Contra Costa Mitchell's Canyon, Mt. Diablo. Comment
  UC2028569  Pleuropogon californicus Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15517 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  UCD90166  Pleuropogon californicus P. B. Kennedy 1929-4-21 s.n. Contra Costa near Concord, corner of Franklin Canyon Road, by Soldier's Monument. 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
  UCD90171  Pleuropogon californicus var. californicus Peter H. Raven; G. Thomas Robbins 1956-4-28 9042 Contra Costa Just east of junction to Martinez along State Highway 4. Comment
  CAS-BOT-BC356115  Pluchea odorata Walter Knight; I. Knight; J. T. Howell; E. McClintock; S. Rae; B. Doyle 1978-9-5 3239 Contra Costa Browns Island. Botany Cove 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
  UC2027749  Poa annua Barbara Ertter 1996-11-24 15424 Contra Costa West side of Mount Diablo, Pine Pond along Stage Road in Pine Canyon. Comment
  UCSB12520  Poa annua Grah, Nancy 1962-4-14 Contra Costa .2 miles north of Miner Rd. on Sleepy Hollow Lane, Orinda 182 Comment
  CAS-BOT-BC246646  Poa howellii Mary L. Bowerman 1933-4-22 1897 Contra Costa Mount Diablo. Inner Black Hills just west of Cave Point Comment
  UC691181  Poa secunda subsp. secunda Mary L. Bowerman 1932-4-27 1381 Contra Costa s face Oyster Ridge (canyon w of Riggs Canyon); Mt Diablo 335 Comment
  UC692472  Poa secunda subsp. secunda Mary L. Bowerman 1935-5-18 3028 Contra Costa n of summit parking area Meridian Peak; Mt Diablo 1036 Comment
  UC70972  Poa secunda subsp. secunda unknown Contra Costa Region of Mt Diablo Comment
  UCD91679  Poa secunda subsp. secunda P. B. Kennedy 1925-4-25 s.n. Contra Costa Road to Sycamore Canyon, Mt. Diablo. Comment
  SEINET5548629  Poaceae J. Hamai 1985-1 s.n. Contra Costa Russell Reserve Comment
  SEINET5554719  Poaceae J. Hamai 1985-1 s.n. Contra Costa Russell Reserve. Comment
  UC570734  Pogogyne serpylloides Herbert L. Mason 1924-5-13 1014 Contra Costa Ridge south of Claremont Canyon, Berkeley Hills Comment
  UC691512  Pogogyne serpylloides Mary L. Bowerman 1933-5-8 2027 Contra Costa Mount Diablo, small flat north of Rock City Camp. Comment
  UC883703  Pogogyne zizyphoroides Lewis S. Rose 1937-4-21 37226 Contra Costa Byron 15 Comment
  UC1818877  Polygonum Barbara Ertter 1995-8-19 14504 a Contra Costa Edge of Cerrito Creek on north side of Albany Hill, south edge of El Cerrito; dense weeds at edge of sluggish water. Comment
  UC692130  Polygonum amphibium Mary L. Bowerman 1935-9-13 3335 Contra Costa Chase Pond Mount Diablo Comment
  CAS-BOT-BC413969  Polygonum aviculare subsp. aviculare Walter Knight; Wayne Roderick; Steve Edwards; Bob Doyle 1978-9-19 3256 Contra Costa Brown's Island, South Landing 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
  UC1607644  Polygonum punctatum Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, and Amy Hiss 1991-8-18 10679 Contra Costa n Pittsburg (near confluence of Sacramento and San Joaquin Rivers, opposite Pittsburg Marina, at edge of lagoon in center of w end of island); Browns Island Comment
  UC1478302  Polypodium Alan R. Smith with Tom Lemieux 1981-11-19 827 Contra Costa n slope Mt. Diablo (creekside ravine along North Gate Rd, 3.6 mi w of (below) Park HQ (South Gate Rd. junction)); Mt. Diablo State Park 640 Comment
  UC1478304  Polypodium calirhiza Alan R. Smith with Tom Lemieux 1981-11-19 826 Contra Costa n slope Mt. Diablo (creekside ravine along North Gate Rd., 3.6 mi w of (below) Park HQ (South Gate Rd. junction); Mt. Diablo State Park 640 Comment
  UC805287  Polypodium calirhiza W. H. Wagner Jr. 1950-6-4 Contra Costa along rd. above San Pablo Reservoir (near Inspiration Point) Comment
  UC50640  Polypogon imberbis Jos. Burtt Davy 6662 Contra Costa Salt-marsh near Martinez Comment
  UC1819024  Polypogon interruptus Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14634 Contra Costa Little Pine Creek at northwest foot of Mt. Diablo, along trail connecting North Gate Road to Castle Rock Road, Diablo Foothills Regional Park; along stream above stable, riparian vegetation. 91 Comment
  CAS-BOT-BC232584  Polypogon monspeliensis Walter Knight; Joanne Dean 1978-8-14 3190 Contra Costa Browns Island Comment
  JEPS45888  Polypogon monspeliensis Virginia Bufford 1932-4-18 578 Contra Costa Wildcat Canyon Comment
  RSA720803  Polypogon viridis Mary L. Bowerman 1975-9-14 s.n. Contra Costa Mount Diablo. Muddy rivuley coming from leak in pipe near Chase Pond. Comment
Read comments Jun 30 2011
  CDA23603  Polystichum munitum D. G. Kelch 2008-2-24 8 .015 Contra Costa Carquinez Strait; Pinole Valley Park. 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
  CAS-BOT-BC143055  Potentilla anserina subsp. pacifica Walter Knight; Joanne Dean 1978-8-14 3169 Contra Costa Browns Island Comment
  JEPS112077  Potentilla anserina subsp. pacifica D. G. Kelch 2003-8-13 03 .107 Contra Costa Martinez Marsh 0 Comment
  JEPS84884  Proboscidea lutea G. Thomas Robbins 1959-8-1 4114 Contra Costa roadside berm of frontage road just s Mt. Diablo Blvd. ((about 0.5 mi e of concrete bridge at Charles Hill and about 0.2 mi w of jct. of Hidden Valley Rd.), 2 mi w of Lafayette) 144 Comment
  UCD122080  Proboscidea lutea S. C. Harvey 1946-9-23 Contra Costa Martinez, California. Comment
  CDA32038  Prunus angustifolia D. G. Kelch 2006-3-18 6 .107 Contra Costa 2 km N-NW of Orinda Village. NW of corner of San Pablo Dam Rd & Bear Valley Rd. 0 Comment
  UC2012969  Prunus cerasifera Barbara Ertter with Tony Morosco 1996-7-27 15033 Contra Costa Mount Diablo State Park, lower Donner Creek at old cabin site. Comment
  CDA33067  Prunus dulcis D. G. Kelch 2010-10-5 10 .415 Contra Costa The Delta; Just east of Antioch bridge. Comment
  JEPS112091  Prunus lyonii D. G. Kelch 2004-5-9 04 .215 Contra Costa Crockett - Eckley Hills North of Bull Valley Staging Area. Rare 13 Comment
  JEPS112096  Prunus subcordata D. G. Kelch 2005-3-26 05 .99 Contra Costa Pinole Peak Fernandez Ranch. South side - road from Perreria Road to Pinole Peak Ridge 268 Comment
  UC691121  Prunus subcordata Mary L. Bowerman 1933-5-21 2157 Contra Costa S from Curry Canyon ( head of Grape Gully); Mount Diablo Comment
  UC691124  Prunus subcordata Mary L. Bowerman 1932-4-9 1334 Contra Costa Mount Diablo, Muir Area Mount Diablo; , Muir Area Comment
  UC691157  Prunus subcordata Mary L. Bowerman 1931-4-5 674 Contra Costa between rocky point below Gregory Ranch and road below Mount Diablo Comment
  CAS-BOT-BC154628  Prunus subcordata Peter H. Raven; H. L. Mason; R. Ornduff; et al. 1957-4-11 10626 Contra Costa Curry Canyon 4.0 mi. s. of Recreation Ground Comment
  UC691120  Prunus virginiana var. demissa Mary L. Bowerman 1936-6-20 3415 Contra Costa w side of ridge w of Mount Zion (Mount Diablo); Mount Diablo 213 Comment
  CDA42354  Pseudognaphalium beneolens D. G. Kelch, Vince Guise 2012-7-26 12 .231 Contra Costa Carquinez Strait.; Martinez. Summit of Shady Glen Rd on sandstone outcrop. 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
  UC1795890  Pseudognaphalium californicum Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14636 Contra Costa Little Pine Creek at northwest foot of Mt. Diablo, along trail connecting North Gate Road to Castle Rock Road, Diablo Foothills Regional Park; along stream above stable, riparian vegetation. 91 Comment
  UC691826  Pseudognaphalium stramineum Mary L. Bowerman 1938-9-17 3717 Contra Costa Johnny Walker Spring Mount Diablo, Johnny Walker Spring 731 Comment
  CAS-BOT-BC357594  Pseudognaphalium stramineum Walter Knight; I. Knight; J. T. Howell; E. McClintock; S. Rae; B. Doyle 1978-9-5 3237 Contra Costa Browns Island Comment
  UC1795802  Pseudognaphalium stramineum Barbara Ertter, Rich Rabeler 1994-6-6 12817 Contra Costa Point Isabel in south Richmond; black cinders on old railroad bed north of Costco; landfill. Comment
  UC1563700  Psilocarphus brevissimus var. brevissimus Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8143 Contra Costa ca 15 air mi sw Stockton (w and adjacent to Clifton Court Forebay, se Contra Costa Co.) Comment
  CAS-BOT-BC361693  Psilocarphus brevissimus var. brevissimus Herbert L. Mason 1952-4-14 14266 Contra Costa Vernal Pool 3.5 miles south of Byron Comment
  JEPS25388  Psilocarphus oregonus Rimo Bacigalupi with G. T. Robbins and Francia Chisaki 1959-4-14 7001 Contra Costa 2.5 mi se Antioch (along Lone Tree Way, just e of Antioch Airport) 56 Comment
  CAS-BOT-BC361879  Psilocarphus tenellus John Thomas Howell 1933-5-14 11230 Contra Costa St. Mary's College Comment
  UC694157  Psilocarphus tenellus Herbert L. Mason 1932-4-15 6926 Contra Costa summit of Road Moraga to Lafayette Comment
Read comments Oct 6 2006
  RSA31229  Psilocarphus tenellus var. tenellus Joseph A. Ewan 1936-5-3 9497 Contra Costa Wildcat Creek near Orinda road bridge. Comment
  POM138974  Ptelea baldwinii subsp. crenulata M. S. Baker 1904-6-22 s.n. Contra Costa Mt. Diablo above Walkers. Comment
Read comments Mar 6 2011
  RSA448386  Ptelea baldwinii subsp. crenulata H. de Forest 1930-4-6 s.n. Contra Costa SE of Mortonville, Small 'coal mine' ravine. 274 Comment
  CAS-BOT-BC148639  Ptelea crenulata W. L. Jepson 1918-6-5 7603 a Contra Costa Mt. Diablo, Donner Canyon Comment
  CAS-BOT-BC148640  Ptelea crenulata A. D. E. Elmer 1903-5-1 4327 Contra Costa Mt. Diablo Comment
  JEPS40172  Ptelea crenulata W. L. Jepson 1907-4-27 2648 Contra Costa Mt. Diablo Comment
  UC1277976  Ptelea crenulata B. Crampton 1957-7-9 4273 Contra Costa 2-3 mi nw Martinez (slopes above the Carquinez Straits) Comment
  UC17376  Ptelea crenulata J. Burtt Davy 1895-4-7 909 Contra Costa Antioch Comment
  UC34836  Ptelea crenulata Chesnut and Drew 1889-4-17 Contra Costa Summerville Comment
  UC571100  Ptelea crenulata H. L. Mason 1928-4-1 4273 Contra Costa hills n Mount Diablo (canyon back of Pittsburg) Comment
  UC571101  Ptelea crenulata H. L. Mason 1928-4-1 4270 Contra Costa hills n Mount Diablo (canyon back of Antioch hills) Comment
  UCSB4881  Ptelea crenulata Keator, Glenn 1959-7-1 Contra Costa Laurel camp on Mt. Diablo Comment
  SEINET951733  Pteridaceae T. R. Van Devender, S. H. Stein 1980-1 Contra Costa Lafayette Reservoir Comment
  UC2070583  Pteridium aquilinum var. pubescens Barbara Ertter with Joanne Kerbavaz, David Gowen, Mike Park and Victoria Seidman 2004-4-22 18365 Contra Costa Alder Creek crossing on Green Ranch Road, south side of Mount Diablo summit. Comment
  UC2028967  Puccinellia nuttalliana Barbara Ertter with Brad Olson et al. 2000-6-2 17301 Contra Costa Brushy Peak Regional Preserve NE of Livermore, at south base of Brushy Peak. Comment
  UC2027759  Pyracantha angustifolia Barbara Ertter 1997-1-5 15433 Contra Costa Ygnacio Valley Road crossing Lime Ridge on northwest side of Mount Diablo. Comment
  UC2027946  Pyrus communis Barbara Ertter 1997-9-7 15793 Contra Costa North side Mount Diablo, cabin site on Donner Creek, in persisting orchard. Comment
  CAS-BOT-BC36505  Quercus Paul F. Covel 1939-4-30 s.n. Contra Costa Somersville Comment
  UC1543202  Quercus Donald G. Nelson 1939-12-3 642 Contra Costa n of Clayton (hillside opposite crest of trail from old brick ruin at coal mine) Comment
  JEPS28855  Quercus X morehus James B. Roof, Irja Knight 1962-2-21 Contra Costa Moraga Ridge Comment
  CAS-BOT-BC104162  Quercus X morehus H. E. McMinn 367 Contra Costa 2 1/4 miles E of Edwood Peak on extension of the ridge Comment
  JEPS104771  Quercus X morehus John L. Morrison 1937-3-6 1968 Contra Costa Comment
  CDA33977  Quercus agrifolia D. G. Kelch 2011-3-31 11 .082-B Contra Costa Carquinez Strait region.; Pinole. Comment
  CHSC24131  Quercus agrifolia M. A. Callahan 1976-4-11 1 Contra Costa 45 ft. nnw of house at 1976 Mohawk Dr., Pleasant Hill. Growing on steep hillside; w side Oak Wd. 121 Comment
  UC1084391  Quercus agrifolia G. Thomas Robbins 1937-4-25 147 Contra Costa 2 mi e Alamo (on road to Mt. Diablo) Comment
  UC691315  Quercus agrifolia Mary L. Bowerman 1931-9-27 1049 Contra Costa ne side North Peak; Mount Diablo 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
  UCD45130  Quercus agrifolia P. Akers 2002-5-11 s.n. Contra Costa Mt. Diablo Summit Trail at water tank picnic area. Elev: 2865 ft. 873 Comment
  CAS-BOT-BC62697  Quercus chrysolepis Mary L. Bowerman 1931-4-25 778 Contra Costa Mt. Diablo summit Comment
  UC691274  Quercus chrysolepis Mary L. Bowerman 1930-8-31 446 Contra Costa Dan Cook Canyon, upper end Mount Diablo Comment
  UC691275  Quercus chrysolepis Mary L. Bowerman 1930-10-25 496 Contra Costa Sloan Road Mount Diablo Comment
  CAS-BOT-BC86645  Quercus douglasii H. E. McMinn 1922-10-1 403 Contra Costa Mitchell Canyon, Mt. Diablo Comment
  JEPS100000  Quercus douglasii S. O'Neil 2003-3-11 SEO 16 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS37385  Quercus douglasii W. L. Jepson 1898-10-18 Contra Costa Mt. Diablo Comment
  UC1135448  Quercus douglasii R. W. Lundh 1932-8-17 131 Contra Costa 1 mi e Round Valley; Mt. Diablo Quad. 518 Comment
  UC521666  Quercus douglasii Joseph Andorfer Ewan 1933-10-15 8028 Contra Costa Mt. Diablo 1066 Comment
  UC691298  Quercus douglasii Mary L. Bowerman 1930-9-9 457 Contra Costa ne side North Peak; Mount Diablo Comment
  CAS-BOT-BC86122  Quercus dumosa Mary L. Bowerman 1932-1-23 1078 Contra Costa Mount Diablo. Knoll W of knoll between Sycamore Ridge and 1920 point Comment
  CAS-BOT-BC79606  Quercus durata Mary L. Bowerman 1932-10-16 1632 Contra Costa Mount Diablo. Donner Canyon Trail Comment
  POM301005  Quercus durata Mary L. Bowerman 1932-10-16 1632 Contra Costa Donner Canyon Trail. Comment
  UC1135558  Quercus durata N. French 1935-7-25 645 Contra Costa Mt. Diablo Mt. Diablo Quad. 670 Comment
  UC1748011  Quercus garryana E. Dean, M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 654 Contra Costa Fossil Ridge, just upslope of South Gate Rd., just W of Gibralter Rock, SE of Rock City Mount Diablo State Park 487 Comment
  CAS-BOT-BC94292  Quercus garryana Mary L. Bowerman 1935-11-30 3351 Contra Costa In draw SW of Gibraltar Rock, Fossil Ridge Comment
  CDA23104  Quercus kelloggii D. G. Kelch, D. A. Weinstein 2007-10-11 s.n. Contra Costa Carquinez Strait; Canada de Cierbo, just S of Crockett. Comment
  SBBG92947  Quercus kelloggii W. D. Dress 1951-3-16 Contra Costa NE side of San Pablo Ridge, about 1 mi N of Orinda Comment
  UC691314  Quercus kelloggii Mary L. Bowerman 1935-11-30 3354 Contra Costa w of Gibraltar Rock; Mount Diablo, Fossil Ridge Comment
  UCD46663  Quercus kelloggii John M. Tucker 1941-8-28 386 Contra Costa Beside road up Curry Canyon, 7.5 miles south of junction with the road from Clayton to Byron, Contra Costa County, California. Comment
  UC5623  Quercus kelloggii W. G. Klee 1878-1 Contra Costa between Lafayette and the Fish Ranch (on the road to Mt. Diablo) Comment
  UC848107  Quercus lobata Lewis S. Rose 1938-10-28 38306 Contra Costa 6 mi e Clayton; Marsh Creek 152 Comment
  SEINET9356036  Quercus lobata Unknown 1938-10-28 Contra Costa Marsh Creek, 6 mi E of Clayton. Canyon bottom. Comment
  UCD81372  Quercus palmeri J. M. Tucker 1981-4-25 4453 -G Contra Costa Antonio Souza Ranch southwest of Byron. Mt. Diablo Meridian. 309 Comment
  UC691310  Quercus wislizeni Mary L. Bowerman 1931-5-19 868 Contra Costa Donner Canyon trail Mount Diablo 274 Comment
  UC691311  Quercus wislizeni Mary L. Bowerman 1933-5-21 2161 Contra Costa ridge above Morgan Sulphur Spring; Mount Diablo 381 Comment
  POM180792  Quercus wislizeni J. T. Howell 1930-6-15 5310 Contra Costa Summit of Grizzley Peak, Berkeley Hills Comment
  CDA22082  Quercus wislizeni var. wislizeni D. G. Kelch 2004-3-13 4 .04 Contra Costa Mt Diablo Region.; Road cut along Marsh Creek Rd about 1.5 miles W of Deer Valley Rd. Comment
  CAS-BOT-BC362444  Rafinesquia californica Alice Eastwood 1923-5-4 11720 Contra Costa Mt. Diablo Comment
  UC691951  Ranunculus aquatilis Mary L. Bowerman 1935-6-21 3155 Contra Costa s Turtle Rock (winter pool e of main pond); Mount Diablo Comment
  UCR263547  Ranunculus aquatilis var. capillaceus Barbara Ertter, Tony Morosco 1998-7-11 16365 Contra Costa San Francisco Bay Region, North base of Mount Diablo, small pond on north side of Bruce Lee Road east of Mitchell Canyon staging area 183 Comment
  RSA132889  Ranunculus aquatilis var. capillaceus Simon Simonian 1954-8-24 1311 a Contra Costa Entersprise Canal, east-west section crossing of McKinley Ave west of McDonough Ave., 2 miles north of Centerville. Main canal. Comment
  UC2027730  Ranunculus canus Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15505 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  POM149874  Ranunculus canus Jos. Burtt Davy 1898-05 s.n. Contra Costa San Ramon, Mt Diablo Comment
Read comments Jan 23 2011
  POM268399  Ranunculus canus Lyman Benson 1931-3-18 2655 Contra Costa Mt. Diablo near Danville; Mt. Range: Mt. Diablo; Watershed: Walnut Creek 152 Comment
  POM268460  Ranunculus canus Lyman Benson 1931-3-28 2654 Contra Costa Danville; Mt. Range: Mt. Diablo 122 Comment
  UC135556  Ranunculus canus var. canus Edward Lee Greene April, 1887 Contra Costa Antioch Comment
  CDA33805  Ranunculus hebecarpus D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .113 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  RSA14522  Ranunculus hebecarpus L. S. Rose 1934-3-21 34071 Contra Costa Marsh Creek, 6 miles E of Clayton. Comment
  SEINET3816544 Image available Ranunculus hebecarpus Lewis S. Rose 1934-3-21 34071 Contra Costa Marsh Creek, 6 miles east of Clayton. Comment
  UC2043025  Ranunculus lobbii Barbara Ertter with David Gowen 2006-3-1 18665 Contra Costa Upper San Leandro Reservoir Watershed (EBMUD) south Moraga, shallow small pond along SE end of Rocky Ridge Road as it drops to King Canyon Road. Comment
  JEPS99975  Ranunculus muricatus G. Smick 2003-4-29 GAS 147 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1618351  Ranunculus muricatus Barbara Ertter, Chris Thayer 1993-5-7 11716 Contra Costa e of Tilden Park (1/2 mi n of Vollmer (=Bald)Peak in East Bay Municipal Utiliteis District land); East Bay Municipal Utiliteis District land 304 Comment
  RSA125860  Ranunculus occidentalis var. eisenii G. R. Campbell 1956-4-6 17 Contra Costa Between Round Top and summit of Mt. Diablo. 305 Comment
  UC61031  Ranunculus orthorhynchus var. bloomeri N. L. Gardner 1904-2-17 Contra Costa Happy Valley Comment
  UC2029070  Raphanus raphanistrum Barbara Ertter 2000-7-16 17414 Contra Costa Little Pine Creek Road on west side of Mount Diablo. Comment
  JEPS112063  Reseda alba D. G. Kelch 2004-4-11 04 .76 Contra Costa Crockett - Crolona Heights Hillside above Rolf Drive. Lower Crolona heights. 15 Comment
  UC1784204  Rhamnus californica Ethel Crum 1930-9-29 858 Contra Costa Marsh Creek Road to Holt Comment
  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
  CAS-BOT-BC59899  Rhamnus ilicifolia Rimo Bacigalupi 1922-9-24 s.n. Contra Costa Clayton. Comment
  JEPS42023  Rhamnus ilicifolia W. L. Jepson 7583 Contra Costa Donner Canyon Mt. Diablo 609 Comment
  UC73348  Rhamnus ilicifolia Milo S. Baker 1904-6-24 Contra Costa near summit of Mt. Diablo; Mt. Diablo Comment
  UC1479602  Rhaponticum repens Ken Stevens 1980-6-1 Contra Costa 1/4 mi w of, along hwy 4 Discovery Bay Comment
  JEPS111590  Rhus trilobata D. G. Kelch 2005-3-26 05 .98 Contra Costa Pinole Peak Fernandez Ranch. South side - road from Perreria Road to Pinole Peak Ridge. Rare shrub up to 1.5 ms 150 Comment
  UC692576  Rhus trilobata Mary L. Bowerman 1935-5-30 3092 Contra Costa Eagle Point Ridge; Mount Diablo 350 Comment
  UC2027990  Ribes divaricatum var. pubiflorum Barbara Ertter 1998-4-19 16028 Contra Costa Tilden Regional Park, Wildcat Creek Trail to Jewel Lake. Comment
  HSC45325  Ribes malvaceum J. P. Smith, J. O. Sawyer, Thomas W. Nelson 1978-2-18 9520 Contra Costa Mt. Diablo State Park, Juniper Campground along Gate Rd. Comment
  JEPS111986  Ribes menziesii D. G. Kelch 2005-2-28 05 .8 Contra Costa Vaca Canyon Vaca Canyon Alhambra Valley Road Bay Forest road cut with Arbutus 165 Comment
  JEPS79394  Ribes menziesii Edward Lee with Annetta Carter 1936-5-24 2167 Contra Costa 10 mi from Marsh Creek Road; Mt. Diablo, Morgan Territory Comment
  UC1127445  Ribes menziesii H. S. Yates 1936-3-14 5364 Contra Costa 2 1/2 mi sw Round Valley; Mt. Diablo Quadrangle Comment
  UC691266  Ribes menziesii Charles Fakler 1944-8-4 3897 Contra Costa Juniper Camp area Mount Diablo Comment
  UC692434  Ribes menziesii Mary L. Bowerman 1935-6-1 3102 Contra Costa first minor ridge e Mitchell-Pine divide; Mount Diablo 1005 Comment
  UC692435  Ribes menziesii Mary L. Bowerman 1933-6-3 2248 Contra Costa summit Meridian Peak (n side); Mt. Diablo 1127 Comment
  CAS-BOT-BC206019  Ribes menziesii Peter H. Raven 1956-4-8 8985 Contra Costa About 0.5 mile north-east of Grizzly Peak 396 Comment
  JEPS116868  Ribes menziesii David Gowen 2007-9-1 790 Contra Costa Huckleberry Regional Preserve. Along trail descending to canyon bottom near trail junction above creek. Comment
  UC2070465  Ribes quercetorum Barbara Ertter 2003-3-28 18112 Contra Costa Round Valley Regional Preserve, Miwok Trail at east end of Round Valley Creek. Comment
  UCD102488  Ribes sanguineum Robert L. Rudd; Krutzsch 1947-3-24 17 Contra Costa Wild Cat Canyon. Comment
  CAS-BOT-BC209362  Ribes sanguineum var. glutinosum John Thomas Howell 1925-9-12 1438 Contra Costa San Leandro Canyon, Oakland Hills Comment
  CAS-BOT-BC362959  Rigiopappus leptocladus Mary L. Bowerman 1933-5-8 2016 Contra Costa Mount Diablo. Fossil Ridge near crest, on north side by side road Comment
  CAS-BOT-BC362965  Rigiopappus leptocladus Brandegee No date on label s.n. Contra Costa Antioch Comment
  CDA25732  Romulea rosea D. G. Kelch, D. A. Weinstein 2008-3-3 8 .025 Contra Costa East Bay.; Richmond. Wildcat Canyon Park. Alvarado Unit (W end). Comment
  UC1050660  Rondeletia gratissima N. Floy Bracelin 1943-5-23 1178 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC2027956  Rorippa curvisiliqua Barbara Ertter with Joanne Kerbavaz 2000-8-20 17501 Contra Costa Frog Pond on southeast side of Mount Diablo. Comment
  SD103750  Rorippa palustris subsp. glabra Walter Knight, Irja Knight 1979-6-15 3398 Contra Costa Crooked slough, Brown's Island. Comment
  UC1584666  Rosa californica Jerry Powell 1990-8-29 1593 Contra Costa on riverine floodplain Antioch National Wildlife Reguge Comment
  CAS-BOT-BC147411  Rosa californica Mary L. Bowerman 1931-5-13 841 Contra Costa Pine Canyon one mile above the Sulphur Spring Comment
  UC691149  Rosa gymnocarpa Mary L. Bowerman 1931-5-23 895 Contra Costa Alamo Canyon Mount Diablo (n-facing bank in canyon bottom) 487 Comment
  SEINET10957118  Rosa sempervirens D. Gowen 2007-5-31 Gowen 695 Contra Costa Carquinez Regional Park. NW Contra Costa County, near Crockett, W of jct. San Pablo Ave. and Rio Del Vista. 30 Comment
  CAS-BOT-BC148206  Rosa spithamea Alice Eastwood 1923-5-4 11705 Contra Costa Mt. Diablo Comment
  UC691099  Rubus parviflorus Mary L. Bowerman 1933-11-4 2464 Contra Costa Alder Creek Springs Mount Diablo, Alder Creek Springs 487 Comment
  JEPS66120  Rubus ulmifolius var. inermis Pat Watters 1971-6-9 Contra Costa vacant lot at Ferry and Green Streets Martinez Comment
  CAS-BOT-BC158774  Rubus ursinus Roxana S. Ferris 1924-4-13 4079 Contra Costa Mitchell Canyon, Mt. Diablo Comment
  CDA924  Rubus ursinus D. G. Kelch 2006-5-5 6 .129 Contra Costa East Bay; Wildcat Canyon Regional Park. Near Wildcat Canyon Road terminus. Comment
  JEPS112015  Rumex acetosella Dean G. Kelch and Andrew G. Murdock 2004-3-19 AGM 225 Contra Costa Luzon. Sycamore Ave. just east of Rodeo/Hercules where train crosses Hwy 4 (Luzon). Comment
  UC1819022  Rumex conglomeratus Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14635 Contra Costa Little Pine Creek at northwest foot of Mt. Diablo, along trail connecting North Gate Road to Castle Rock Road, Diablo Foothills Regional Park; along stream above stable, riparian vegetation. 91 Comment
  UCR78377  Rumex obtusifolius Barbara Ertter, Jim Jokerst, Dave Magney 1989-4-5 8122 Contra Costa San Joaquin Valley, Clifton Court Forebay, c. 15 air miles southwest of Stockton 0 Comment
  UC1795777  Rumex pulcher Barbara Ertter, Mary Bowerman 1995-6-11 14247 Contra Costa Shell Ridge Recreation Area southeast of Walnut Creek, at west base Mt. Diablo.; annual grassland near Indian Valley School entrance, clay soil (planted Clarkia also present). 91 Comment
  JEPS41049  Rumex salicifolius var. salicifolius Rimo Bacigalupi, and L. R. Heckard 1965-5-11 9074 Contra Costa sw of Richmond (w side of Brooks Island); San Francisco Bay, Brooks Island 6 Comment
  UC2028968  Rumex transitorius Barbara Ertter with Brad Olson et al. 2000-6-2 17299 Contra Costa north side Brushy Peak Regional Preserve NE of Livermore. Comment
  JEPS97695  Rupertia physodes Annetta M. Carter, Edward Lee 1936-5-24 1191 Contra Costa Marsh Creek about 2 mi. SE of Curry Canyon. Comment
  SJSU5703  Rupertia physodes C. O. Dudley 1966-5-1 113 a Contra Costa Reliez Valley, Briones Hills, N of Lafayette 152 Comment
  CAS-BOT-BC454141  Ruppia maritima J. W. Congdon 1889-6-20 10 Contra Costa Byron Springs Comment
  CDA23461  Salicornia pacifica T. C. Fuller 1965-11-24 14323 Contra Costa South side of Byron Hot Springs Road, 0.6 mile southwest of Byron-Tracy Highway, ca. 1 mile southwest of Byron. 0 Comment
  CAS-BOT-BC129920  Salix bonplandiana C. F. Baker 1903-4-28 2814 Contra Costa Mount Diablo - Mitchell Canyon Comment
  CAS-BOT-BC129917  Salix bonplandiana Mary L. Bowerman 1931-3-1 529 Contra Costa Mount Diablo - near North Entrance Comment
  POM167728  Salix exigua H. P. Chandler 1901-3-22 860 Contra Costa Pacheco. Comment
  POM181455  Salix exigua I. L. Wiggins 1930-4-18 4587 Contra Costa Jersey Island. Comment
  UC691922  Salix exigua var. hindsiana Mary L. Bowerman 1936-5-6 3412 a Contra Costa Mitchell Canyon Mt. Diablo, Mitchell Canyon 152 Comment
  CDA15252  Salix gooddingii G. F. Hrusa, D. Crowe 1998-5-8 14383 b Contra Costa Sacramento Delta; Dow Ecological Reserve on Dow Chemical property at Pittsburg. Comment
  UC650566  Salix gooddingii Ira L. Wiggins 1930-4-18 4591 Contra Costa levees, Jersey Isl. Jersey Isl. Comment
  JEPS112249  Salix laevigata A. G. Murdock 283 Contra Costa Refugio Valley 120 Comment
  JEPS112251  Salix laevigata D. G. Kelch 2004-5-7 04 .198 Contra Costa Canada del Cierbo 40 Comment
  POM167563  Salix laevigata C. F. Baker 1903-4-28 2814 Contra Costa Mitchell Canyon. Mt Diablo. Comment
  POM167733  Salix laevigata H. P. Chandler 1901-3-22 859 Contra Costa Pacheco. Comment
  UC692053  Salix laevigata Mary L. Bowerman 1935-10-26 3348 Contra Costa creek bottom at road junction Mt. Diablo 640 Comment
  LA208679  Salix laevigata Joseph Andorfer Ewan; 1933-10-15 8034 Contra Costa Mount Diablo, Indian Ceremonial Apr Comment
  RSA0030832  Salix laevigata Walter C. Blasdale 1896-2-29 s.n. Contra Costa Clayton. Comment
  UC5013  Salix laevigata var. congesta H. N. Bolander Apr 1866 6333 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC125142  Salix lasiandra var. lasiandra W. W. Mott 1905-3-11 s.n. Contra Costa unspecified Comment
  UC692060  Salix lasiolepis Mary L. Bowerman 1935-6-21 3142 Contra Costa Arroyo del Cerro Mount Diablo (e fork) 259 Comment
  UC692064  Salix lasiolepis Mary L. Bowerman 1932-8-27 1519 Contra Costa spring s Turtle Rock; Mount Diablo Comment
  UC692065  Salix lasiolepis Mary L. Bowerman 1935-6-21 3142 Contra Costa Arroyo del Cerro Mount Diablo (e fork) 259 Comment
  UC499339  Salix lasiolepis Mary L. Bowerman 1933-3-25 1777 Contra Costa back of Diablo Stock Farm; Stone Valley, Emmons<?> Canyon 274 Comment
  JEPS87926  Salpichroa origanifolia Barbara Ertter 1991-5-12 9818 Contra Costa sw corner El Cerrito (Point Isabel Regional Shoreline, near parking lot); San Francisco Bay, Point Isabel Regional Shoreline Comment
  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
  JEPS111797  Salsola australis A. G. Murdock 2003-9-12 202 Contra Costa Rodeo - Lone Tree Point Rodeo shoreline 2 Comment
  JEPS111804  Salsola soda D. G. Kelch 2004-4-26 04 .136 Contra Costa Point Pinole 3 Comment
  UC1950181  Salsola soda Barbara Ertter with Elizabeth Neese 1988-10-15 7980 Contra Costa W of I-580 in El Cerrito, W side along Rydin Road N of Central Avenue Comment
  JEPS623  Salsola tragus W. L. Jepson 1945-11-11 27571 Contra Costa Antioch Sandhills Comment
  UCD102380  Salvia columbariae Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 1050 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
  JEPS49757  Salvia mellifera Rimo Bacigalupi and Alice Howard and Paul Hutchison 1967-3-29 9219 Contra Costa 0.5 mi se head of Bolinger Creek (on w slope of Las Trampas Ridge, in Bolinger Creek drainage); Las Trampas Ridge, Bolinger Creek 390 Comment
  POM71109  Salvia mellifera H. P. Chandler 1901-4-5 976 Contra Costa Mt. Diablo Comment
  RSA15471  Salvia mellifera Alice Eastwood, J. T. Howell 1936-4-19 s.n. Contra Costa Nortonville. Comment
  UC635692  Salvia mellifera A. E. Borell 1928-3-18 28 Contra Costa w slope Mt. Diablo Comment
  RSA0068492  Salvia mellifera Katie Gallagher, Nick Jensen 2014-4-26 182 Contra Costa Las Trampas Regional Wilderness. 365 Comment
  RSA434141  Salvia mellifera August Hartman 1960-4-19 s.n. Contra Costa South Gate Road, Mt. Diablo 305 Comment
  UC2045292 Image available Salvia mellifera Mary L. Bowerman 1931-2-8 507 Contra Costa West road Comment
  UC2055610  Salvia spathacea Mary Bowerman 1972-5-6 s. n. Contra Costa Pine Canyon, 1/4 mile up canyon from lowest reservoir. Comment
  UC25745  Salvia spathacea F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  JEPS12714  Sambucus mexicana Katharine Brandegee 1907-6-16 Contra Costa Antioch Comment
  UC570378  Sambucus mexicana Chas. M. Belshaw 1936-2-16 1593 Contra Costa 2 1/2 mi nne Orinda; Sobrante and Briones Hills, Briones Valley Comment
  UCD164883  Sambucus nigra subsp. caerulea Henry House 1995-5-20 1995- 12 Contra Costa Adjacent to Walnut Blvd., approximately 1.25 km south of Marsh Creek Road. 30 Comment
  JEPS259  Sanicula bipinnata W. L. Jepson 1925-4-26 10695 Contra Costa Mt. Diablo Comment
  POM224440  Sanicula bipinnata Alice Eastwood, J. T. Howell 1936-4-19 s.n. Contra Costa Nortonville. Comment
  UCSB4634  Sanicula bipinnata Kamb, Peter; Chisaki, Francia 1950-3-18 Contra Costa Head of Pine Canyon, Mt. Diablo 533 Comment
  JEPS100131  Sanicula bipinnatifida G. Smick 2003-3-25 GAS 109 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA720813  Sanicula bipinnatifida Barbara Ertter, Dale Sanders, Dan Norris 1994-3-26 12335 Contra Costa Peyton Hill east of I-680 east of Martinez, south of Waterfront Road, southeast side of hill. 30 Comment
  UC536009  Sanicula crassicaulis Laurence S. Jones 1934-4-8 55 Contra Costa Mount Diablo approximately 3 mi surface distance from peak Mount Diablo 609 Comment
  PASA1824  Sanicula menziesii Annetta Carter 1929-3-31 Contra Costa Near Clayton. Hills north of Mt. Diablo Comment
  UC1006707  Sanicula saxatilis C. Ritchie Bell 1953-4-1 1408 Contra Costa Mount Diablo, North Peak Mount Diablo; , North Peak Comment
  UC1949241  Sanicula saxatilis Barbara Ertter with Brad Olson, Lynne Hosley, et al. 1991-4-7 9728 Contra Costa Eagle peak on Mount Diablo; slopes on E and SW side Comment
  UC2028179  Sanicula tuberosa Barbara Ertter 1998-5-3 16039 Contra Costa SW fork of Pine Creek between Pine Ridge and Wall Point Ridge, southwest base of Mount Diablo. Comment
  UC2029042  Sanicula tuberosa Barbara Ertter 2000-3-19 16895 Contra Costa Southwest side of Mount Diablo, Secret Trail between Barbecue Terrace Road and Wall Point Road. Comment
  SEINET238193 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
  UCD33150  Sasa borealis Beecher Crampton 1966-10-18 7815 Contra Costa Contra Costa County, Kensington, Berkeley Hills Blake Garden, UC Berkeley Dept. of landscape architecture. Comment
  CDA7922  Satureja douglasii D. G. Kelch, A. G. Murdock 2005-1-16 5 .003 Contra Costa Carquinez Strait; Dutra fire road. Comment
  UC570944  Saxifraga californica Herbert L. Mason 1926-3-7 2702 Contra Costa Mount Diablo Comment
  CDA42438  Scandix pecten-veneris D. G. Kelch 2012-5-29 12 .091 Contra Costa Carquinez Strait Region; Point Pinole. Comment
  JEPS111609  Scandix pecten-veneris D. G. Kelch 2003-4-3 03 .349 Contra Costa Cummings Skyway South of Cummings Skyway and Crockett Blvd 134 Comment
  JEPS78622  Schoenoplectus acutus var. occidentalis Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3285 Contra Costa Botany Cove Browns Island, Botany Cove Comment
  CAS-BOT-BC111465  Schoenoplectus californicus Walter Knight; Joanne Dean 1978-8-14 3189 Contra Costa Browns Island Comment
  CDA15247  Scirpus acutus var. occidentalis G. F. Hrusa, D. Crowe 1998-5-8 14378 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Comment
  UC692193  Scirpus acutus var. occidentalis Mary L. Bowerman 1938-9-17 3715 Contra Costa by the rivulet and in the marsh Big Spring Mount Diablo, Big Spring 731 Comment
  CDA39116  Scirpus californicus D. G. Kelch 2004-6-6 4 .229 Contra Costa Carquinez Strait Region; Downtown Martinez. Alhambra Creek near bay and railroad station. Comment
  CDA39108  Scirpus californicus T. C. Fuller 1964-11-6 12808 Contra Costa Northeast side of Bethel Island. 0 Comment
  UC1618393  Scirpus cernuus Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10713 Contra Costa Browns Island n of Pittsburg (near confluence of Sacramento and San Joaquin Rivers, opposite Pittsburg Marina, (Botany Cove)); Browns Island Comment
  CDA15249  Scirpus maritimus G. F. Hrusa, D. Crowe 1998-5-8 14380 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Comment
  CDA32274  Scirpus maritimus G. F. Hrusa, D. Crowe, R. York 1998-7-17 14724 Contra Costa Sacramento Delta; Colony in bottom of now dry drainage/wash through disturbed grasslands at E end of Dow Chemical property. Site clearly wet earlier in season, but w/out standing water at this time. Comment
  JEPS116695  Scribneria bolanderi David Gowen 2006-5-19 580 Contra Costa Mount Diablo; Knobcone Point Rd. east of powerline, near unnamed dirt road west of Cave Point. Comment
  UC1948943  Scrophularia californica William J. Ferlatte, L. Maynard Moe 1970-4-27 1223 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC691648  Scrophularia californica subsp. floribunda Mary L. Bowerman 1931-4-25 782 Contra Costa summit Mt Diablo Comment
  UC723846  Scutellaria tuberosa Joseph Andorfer Ewan 1934-4-8 8767 Contra Costa head of Arroyo Cayetaus (Mount Diablo); , Arroyo Cayetaus 609 Comment
  CAS-BOT-BC327382  Senecio aphanactis John Thomas Howell 1933-3-29 10900 Contra Costa Nortonville hills Comment
  CAS-BOT-BC363289  Senecio aronicoides Alice Eastwood 1915-5-30 4535 Contra Costa Mt. Diablo Comment
  JEPS111705  Senecio aronicoides D. G. Kelch 2004-5-2 04 .175 Contra Costa Crockett - Edwards Canyon 112 Comment
  JEPS79322  Senecio flaccidus var. douglasii Edward Lee with Annetta Carter 1935-8-17 1634 Contra Costa Antioch Comment
  UC1584828  Senecio hydrophilus Jerry Powell 1990-8-29 1588 Contra Costa Antioch National Wildlife Refuge Comment
  CAS-BOT-BC363702  Senecio hydrophilus Walter Knight 1977-7-15 s.n. Contra Costa Little Corral site. Antioch Sand Dunes Comment
  UC2032832  Senecio sylvaticus Doran, Andrew Scott 2012-3-20 702 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  UC335828  Senecio triangularis unknown Contra Costa near Mt. Diablo; near Mt. Diablo Comment
Read comments Feb 11 2013
  JEPS100173  Senecio vulgaris G. Smick 2003-3-25 GAS 84 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC80264  Sequoia sempervirens John Thomas Howell 1927-2-6 2279 Contra Costa San Leandro [Canon] Canyon at Pinehurst 152 Comment
  JEPS48264  Sequoia sempervirens K. D. Jones 1908-4-5 Contra Costa Redwood Peak Comment
  SEINET3840815  Sesuvium verrucosum Unknown 2006-7-14 6 .329 Contra Costa East of Martinez, Along Marine Vista avenue immediately west of Pacheco Slough 1 Comment
  CHSC116634  Sherardia arvensis Lowell Ahart; Josephine Guardino 2016-4-19 20802 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the sides of the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  POM61913  Sidalcea diploscypha A. D. E. Elmer 1903-05 4316 Contra Costa Walnut Creek. Comment
  UCR6068  Sidalcea malviflora Charles Prentiss 1966-4-5 07 Contra Costa San Francisco Bay Region, Tilden Park at Indian Camp, E facing slope across from tennis courts 168 Comment
  UC1607656  Sidalcea malviflora subsp. laciniata Barbara Ertter, Chris Thayer 1993-5-7 11704 Contra Costa ca 1/2 mi n Vollmer Peak (= Bald Peak, in East Bay Municipal Utilities District land, e of Tilden Park); n of Vollmer Peak (= Bald Peak), e of Tilden Park 457 Comment
  UC18907  Sidalcea malviflora subsp. laciniata State Survey 1862-4-30 1002 Contra Costa Walnut Creek Comment
  UC692614  Sidalcea malviflora subsp. laciniata Mary L. Bowerman 1933-4-22 1880 Contra Costa opposite Heather Farm (near the sulphur spring, Shell Ridge where the highway crosses; meadow); Mount Diablo, Shell ridge, oppos Heather Farm Comment
  UC72569  Silene antirrhina Chesnut and Drew 1889-4-16 Contra Costa Clayton Comment
  CAS-BOT-BC384441  Silene antirrhina Kellogg No date on label s.n. Contra Costa Mt Diablo Comment
  JEPS100088  Silene gallica G. Smick 2003-3-25 GAS 77 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS111786  Silene gallica D. G. Kelch 2004-5-7 04 .188 Contra Costa Ca ada del Cierbo Ca ada del Cierbo 40 Comment
  CDA28920  Silybum marianum D. G. Kelch, Troy MacGregor 2009-5-24 9 .297 Contra Costa Carquinez Strait; Carquinez Loop Trail S of Ozol, S-SW of Martinez, nr Wolcott Ln . Comment
  POM181429  Sinapis arvensis I. L. Wiggins 1930-4-18 4611 Contra Costa Jersey Island. Comment
  SFV1416  Sinapis arvensis L. B. Hendrix 1962-4-22 21 Contra Costa Walnut Creek, Sun Valley Drive. Comment
  UC2028577  Sinapis arvensis Barbara Ertter, Holly Forbes 1997-4-20 15548 Contra Costa North base of Mount Diablo, trail to Back Creek from Mitchell Canyon trailhead. Comment
  CDA947  Sisymbrium officinale D. G. Kelch 2006-5-5 6 .13 Contra Costa East Bay; Wildcat Canyon Regional Park. Near Wildcat Canyon Road terminus. Comment
  JEPS100078  Sisymbrium officinale G. Smick 2003-5-30 GAS 207 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC75281  Sisymbrium officinale Mary L. Bowerman 1935-5-1 2939 Contra Costa Mount Diablo. West road 2 miles from entrance, across the creek. Comment
  CDA3848  Sisymbrium orientale J. Simmen 1973-3-2 Contra Costa Pittsburgh. 0 Comment
  JEPS64283  Sisyrinchium bellum W. L. Jepson 1922-5-23 9670 Contra Costa n slope Mount Diablo Comment
  SEINET4061707  Sisyrinchium bellum M. W. Garcia 1960-1 60030 Contra Costa Collected on back of Tilden Park. 60 Comment
  UC2070662  Sisyrinchium bellum Barbara Ertter 2002-5-16 17861 Contra Costa Richmond Field Station (UC-Berkeley). Comment
  UC2012998  Solanum nigrum Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14924 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  CAS-BOT-BC157453  Solanum umbelliferum A. Eastwood 1915-5-30 4541 Contra Costa Mt. Diablo Comment
  CHSC24836  Solanum umbelliferum M. A. Callahan 1976-4-14 16 Contra Costa 40 m ene of house at 1976 Mohawk Dr. Pleasant Hill. 106 Comment
  NY820647  Solanum umbelliferum A. A. Heller 1908-4-16 8889 Contra Costa Sand hills east of Antioch 23 Comment
  UC176058  Solanum umbelliferum Dr. J. H. Goodspeed 1913-5-3 Contra Costa Moraga Valley Comment
  UC456217  Solanum umbelliferum I. J. Condit 1908-8-20 Contra Costa Oakley Comment
  POM215197  Solanum umbelliferum D. D. Keck 1933-11-2 2619 Contra Costa 1 mile SE of Oakley. Comment
  UC1051128  Solanum xanti N. Floy Bracelin 1943-8-22 2584 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CDA8722  Solidago californica A. G. Murdock, D. G. Kelch 2003-9-12 198 Contra Costa Carquinez Strait Region; Crockett - Tormey Headlands. Along trail to Superfund overlook. Comment
  JEPS78880  Solidago velutina subsp. californica Edward Lee 1936-12-12 2608 Contra Costa s Berkeley Country Club Comment
  JEPS25515  Soliva sessilis Robert Owen 1961-5-19 Contra Costa Tilden Regional Park Botanic Garden Comment
  CDA15259  Sonchus asper G. F. Hrusa, D. Crowe 1998-5-8 14390 Contra Costa Sacramento Delta; E end of Dow Chemical property in Pittsburg. Comment
  CAS-BOT-BC365985  Sonchus asper John Thomas Howell 1933-5-14 11248 Contra Costa Hills east of St. Mary's College Comment
  SEINET11807909  Sonchus asper W. Knight, Knight, I. 1988-1 6219 Contra Costa Suisun Marsh Comment
  RSA760658  Sonchus oleraceus William J. Ferlatte, L. Maynard Moe 1970-4-27 1222 Contra Costa San Francisco Bay, Red Rock Island. Comment
  UCD92659  Sorghum halepense Beecher Crampton 1970-3-10 8540 Contra Costa Vasco Road S of Brentwood. 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
  RSA720843  Spartina densiflora Barbara Ertter, Richard K. Rabeler 1994-6-18 12835 Contra Costa Point Pinole Regional Shoreline at north end of Richmond, beach on north side Whittell Marsh Comment
  UC1795889  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
  UCD99169  Spergula arvensis P. B. Kennedy 1914-3-15 4658 Contra Costa Sunset Cemetary. Comment
  UC2070547  Spergularia bocconi Barbara Ertter with David Gowen and Michael Park 2017-5-2 22805 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road Comment
  SEINET8728586 Image available Spergularia macrotheca Leo Koch 1940-1 1001 Contra Costa Two miles south of San Rafael ferry dock Comment
  UC2070557  Spergularia macrotheca var. leucantha Barbara Ertter with Brad Olson et al. 2000-6-2 17302 Contra Costa Brushy Peak Regional Preserve NE of Livermore. Comment
  UCD33429  Spergularia macrotheca var. longistyla Beecher Crampton 1968-3-27 8237 Contra Costa Contra Costa County, S.E. corner of County, ca. 3.5 miles south of Byron. Comment
  UC1618131  Spergularia marina Barbara Ertter 1994-5-17 12784 Contra Costa Martinez, on waterfront Martinez Comment
  UC2027786  Spergularia marina Barbara Ertter with John Ginochio and 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
  RSA0098111  Spergularia rubra Mary L. Bowerman 1975-4-19 s.n. Contra Costa Mount Diablo. Mitchell Canyon. 256 Comment
  POM89186  Spergularia salina var. tenuis Katherine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. 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
  JEPS21817  Stachys ajugoides J. Robison 1958-5-17 68 Contra Costa Vacant lot on 6th St. Albany 7 Comment
  UC1555268  Stachys ajugoides var. rigida R. C. Stebbins 1988-5-25 Contra Costa Memory and Packrat trails Tilden Park, Tildne Nature Area Comment
  UC579850  Stachys ajugoides var. rigida Annetta Carter 1936-4-19 1113 Contra Costa Red Rock, e side of island San Francisco Bay Comment
  UC903066  Stachys ajugoides var. rigida Ethel Crum 1932-10-16 1471 Contra Costa 3 mi nw San Ramon; San Ramon Valley 143 Comment
  JEPS112477  Stachys pycnantha D. G. Kelch 2004-7-9 04 .303 Contra Costa McEwen Road McEwen marsh. McEwen Road North of Cummings Skyway Contra Costa County CA 130 Comment
  JEPS63040  Stachys pycnantha Mary L. Bowerman 1930-6-28 402 Contra Costa Lower Silver Spring Mount Diablo Comment
  UC2055622  Stachys pycnantha Joseph Andorfer Ewan 1933-10-15 8035 Contra Costa SW slope Mt. Diablo. 1066 Comment
  UCD15026  Stachys rigida Jennifer Roth 1979-4-29 27 Contra Costa Clayton, CA, Russleman Park Road off Marsh Creek Road, Concord Mt. Diablo Trail Ride Assoc. grounds; 365 Comment
  RSA289947  Stachys rigida subsp. quercetorum Mary L. Bowerman 1932-5-6 1430 Contra Costa Mitchell Canyon: at end of road; Mount Diablo. 252 Comment
  RSA0027716  Stebbinsoseris heterocarpa Barbara Ertter 1998-5-3 16076 Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, near Wall Point. 457 Comment
  UC2028208  Stebbinsoseris heterocarpa Barbara Ertter 1998-5-3 16076 Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, near Wall Point. Comment
  UC1125842  Stellaria media R. C. Wilson 1935-3-12 12 Contra Costa 1.5 mi ne Danville; Mt. Diablo Quad. 198 Comment
  UC651293  Stellaria media Ira L. Wiggins 1930-4-18 4598 Contra Costa n end Jersey Island Comment
  UCD99423  Stellaria media Susan Keefer 1969-4-26 28 Contra Costa east base of Las Trampas Peak, 1.5 miles southwest of Alamo. Comment
  UC692302  Stellaria nitens Mary L. Bowerman 1931-3-21 603 Contra Costa e end Fossil Ridge; Mount Diablo Comment
  UC2027725  Stellaria pallida Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15508 a Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  CDA144  Stephanomeria exigua D. G. Kelch, D. A. Weinstein 2007-8-26 7 .553 Contra Costa Carquinez Strait; Ozol Rock, W Martinez. Comment
  SBBG42912  Stephanomeria exigua subsp. coronaria L. D. Gottlieb 1969-11-2 6959 Contra Costa E of Antioch, W of Kaiser Gypsum Plant at Minaker and Wilbur Rds Comment
Read comments Feb 12 2013
  CDA22494  Stephanomeria virgata subsp. pleurocarpa D. G. Kelch, Mike Park 2008-9-1 8 .289 Contra Costa Carquinez Strait; Ozol Rock W of Martinez. Comment
  UC2028477  Stipa lepida Barbara Ertter with Richard K. Brummitt 1998-5-6 16104 Contra Costa Point San Pablo west of Richmond, crest of road to yacht harbor Comment
  UC2070623  Stipa lepida Barbara Ertter 2002-5-11 17847 b Contra Costa Southwest base of Mount Diablo, lower end of Summit Trail in Dan Cook Canyon ca. half mile from South Gate Road. Comment
  JEPS127235  Stipa pulchra Lowell Ahart, Josephine Guardino 2016-4-19 20793 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest to Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  SD34503  Stipa pulchra A. A. Beetle 1941-3-28 1718 Contra Costa Orinda, in sandy soil of open cut Comment
  SACT002407  Stipa setigera P. Kennedy 1914-3-15 Contra Costa Comment
  POM143633  Streptanthus glandulosus subsp. albidus Jos Burtt Davy 1893-5-13 s.n. Contra Costa Contra Costa Comment
Read comments Aug 17 2011
  UC691125  Streptanthus glandulosus subsp. glandulosus Mary L. Bowerman 1935-5-8 2968 Contra Costa North Road 2 mi from North Gate (just w of chaparral, se exposure); Mount Diablo 237 Comment
  CAS-BOT-BC87337  Streptanthus hispidus R. Bacigalupi 1946-5-30 2782 Contra Costa Along auto road up Mount Diablo, about 0.5 mile below Juniper Camp. Comment
  UC205840  Streptanthus hispidus Paul L. Wilson 1921-5-15 Contra Costa Mt. Diablo Comment
  UC402742  Streptanthus hispidus H. M. Hall 1916-5-31 10139 Contra Costa w side Mt. Diablo 1097 Comment
  UC629716  Streptanthus hispidus H. L. Mason 1938-5-3 11751 Contra Costa trail between Juniper Camp and Deer Flat; Mount Diablo 990 Comment
  UC691056  Streptanthus hispidus Mary L. Bowerman 1935-5-8 2971 Contra Costa Muir Area Mount Diablo (hillside in area burned in 1931) 1036 Comment
  UC338175  Streptanthus tortuosus unknown Contra Costa Mount Diablo Comment
Read comments Jul 6 2020
  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
  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
  CAS-BOT-BC422917  Stylomecon heterophylla Volney Rattan 1879-1-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC422920  Stylomecon heterophylla James McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  JEPS75654  Stylomecon heterophylla W. L. Jepson 1925-4-26 10683 Contra Costa Black Hills Mt. Diablo; , Black Hills Comment
  UC692177  Stylomecon heterophylla Mary L. Bowerman 1931-4-19 749 Contra Costa Mitchell Canyon Mount Diablo; , Mitchell Canyon Comment
  RSA446230  Stylomecon heterophylla H. de Forest 1930-4-6 s.n. Contra Costa [No location data on label] Comment
  UC7235  Suaeda moquinii T. J. Storer Sep 1899 Contra Costa Byron Springs Comment
  RSA428933  Symphoricarpos albus var. laevigatus E. E. Stanford 1930-5-24 1509 Contra Costa Marsh Creek Canyon. Comment
  UC691623  Symphoricarpos albus var. laevigatus Mary L. Bowerman 1930-8-24 419 Contra Costa Mitchell Canyon Mount Diablo (a little above end of road) Comment
  CAS-BOT-BC269694  Symphoricarpos mollis Alice Eastwood 1915-6-21 4726 Contra Costa San Leandro Comment
  JEPS111776  Symphoricarpos mollis D. G. Kelch 2005-5-1 05 .181 Contra Costa Crockett - Edwards Canyon 150 Comment
  UC28650  Symphoricarpos mollis Edw. L. Greene 1892-6-20 Contra Costa Mt. Diablo Comment
  UCD150915  Symphyotrichum lentum James A. Neilson Jr. 1972-10-1 s.n. Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 0 Comment
  UCD136614  Symphyotrichum lentum Ann F. Johnson 1978-6-25 AN- 33 Contra Costa Edge of the San Joaquin River at the Antioch Dunes on Pacific Gas and Electric Co. site. Comment
  SEINET3145883  Symphyotrichum subulatum L. S. Rose 1938-10-28 38312 Contra Costa Byron 3 Comment
  UC1606281  Symphyotrichum subulatum Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10868 Contra Costa Dow Wetlands Preserve, just W of Antioch marina; along levee at water's edge, accessed from marina. Comment
  UC892918  Symphyotrichum subulatum Lewis S. Rose 1938-10-28 38312 Contra Costa Byron 3 Comment
  CAS-BOT-BC98331  Symphyotrichum subulatum var. parviflorum Walter Knight 1978-8-27 3196 Contra Costa Contra Loma Regional Park, at reservoir's edge. Comment
  UC1607567  Tamarix parviflora Barbara Ertter 1993-4-2 11480 Contra Costa west of Crockett (below Vista Road, abandoned railroad station); Carquinez Regional Park Comment
  UC19168  Tamarix parviflora J. Burtt Davy 1895-4-13 1013 Contra Costa Lafayette Comment
  JEPS33734  Taraxia ovata Mrs. E. L. Mossman 1931-3-12 57 Contra Costa Wildcat Canyon Berkeley Hills 213 Comment
  UC21431  Tauschia hartwegii Jos. Burtt Davy 1901-4-21 7045 Contra Costa Wildcat Canyon Comment
  UC1819074  Tetragonia tetragonoides Barbara Ertter, Drew Hansen 1995-3-28 13935 Contra Costa Chevron oil refinery in northwest Richmond off of Castro St., south of Wildcat Creek Comment
  UC2032805 Image available Tetragonia tetragonoides Doran, Andrew Scott 2012-3-20 675 Contra Costa Brooks island loading dock, North side of island. Comment
  UC35391  Tetrapteron graciliflorum W. C. Blasdale Mar. 1900 Contra Costa San Pablo Comment
  CAS-BOT-BC197425  Thinopyrum ponticum T. C. Fuller 1961-9-13 7001 Contra Costa Hwy J4, ca. 4 mi. se. of Byron Comment
  UC691142  Thysanocarpus curvipes Mary L. Bowerman 1933-5-17 2102 Contra Costa branch of Curry Canyon due s of Olafson's barn Mount Diablo (w-facing bank just n of first fork of canyon); , branch of Curry Canyon 289 Comment
  CAS-BOT-BC88255  Thysanocarpus curvipes John Thomas Howell 1934-4-8 11822 Contra Costa Marsh Creek Road southwest of Brentwood. Comment
  UC11030  Thysanocarpus curvipes subsp. curvipes Brewer 1862-1 Contra Costa Mount Diablo Comment
  POM203036  Thysanocarpus curvipes var. curvipes J. T. Howell 1934-4-8 11822 Contra Costa Marsh Creek Road, SW of Brentwood. Comment
  SEINET10482179  Thysanocarpus curvipes var. elegans John T. Middleton 1936-4-18 Middleton 140 Contra Costa Briones valley. Comment
  UC117285  Thysanocarpus laciniatus C. F. Baker 1903-4-28 2809 Contra Costa Mt. Diablo; Mt. Diablo, Mitchell's Canyon Comment
  UCD115618  Thysanocarpus laciniatus P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UCD102379  Tonella tenella Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 890 Comment
  UC1818959  Torilis arvensis Barbara Ertter, Kristin Ertter 1995-7-11 14480 Contra Costa Pine Creek on West side of Mt. Diablo southwest of Walnut Creek; partial shade of oak forest, road along Pine Cr. in Diablo Foothills Regional Park 152 Comment
  JEPS63917  Toxicodendron diversilobum W. L. Jepson 1894-9-7 13913 Contra Costa Bald Peak near Berkeley; Bald Peak Comment
  RSA122517  Toxicodendron diversilobum R. W. Lundh 1932-9-22 169 Contra Costa 1/2 mile southwest of Mt Diablo 915 Comment
  RSA610776  Toxicodendron diversilobum Joseph A. Ewan 1936-7-5 9738 Contra Costa Wildcat Creek Comment
  UC1084405  Toxicodendron diversilobum G. Thomas Robbins 1937-4-17 118 Contra Costa near Point Richmond Point Richmond Comment
  UCD139844  Toxicoscordion fremontii Robert C. Bechtel 1952-4-12 55 Contra Costa West side Mount Diablo. 914 Comment
  UCD139856  Toxicoscordion fremontii Laurence S. Jones 1934-4-8 s.n. Contra Costa Mount Diablo. 609 Comment
  JEPS100167  Tragopogon porrifolius G. Smick 2003-5-6 GAS 166 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS107101  Tragopogon porrifolius Barbara Ertter 1991-5-12 9812 Contra Costa Point Isabel Regional Shoreline in SW corner of El Cerrito; along old railroad right-of-way between San Francisco Bay and Salicornia marsh. Comment
  CDA4742  Tribulus terrestris A. G. Murdock, D. G. Kelch 2004-5-28 305 Contra Costa Carquinez Strait; Luzon. Comment
  JEPS111933  Tribulus terrestris Dean G. Kelch and Andrew G. Murdock 2004-5-28 AGM 305 Contra Costa Luzon Comment
  UC2042773  Trichostema lanceolatum Barbara Ertter with Lynne Hosley 1992-8-29 11263 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo Comment
  UC1795842  Trichostema lanceolatum Barbara Ertter, M. L. Bowerman, L. Schultheis, Kevin Hintsa 1995-10-22 14530 Contra Costa Three Springs Trail on northeast side of Mt. Diablo, south of crest of Marsh Creek Rd., dried roadside pond, clay. Comment
  HSC17937  Trientalis latifolia J. Wendell Howe 1930-5-25 Contra Costa Moraga Rd. Comment
  JEPS99531  Trifolium albopurpureum var. albopurpureum Mary Bowerman 1978-5-4 Contra Costa Mount Diablo, Jim White Trail from Juniper Camp to Deer Flat before saddle. Comment
  UC1129956  Trifolium albopurpureum var. albopurpureum C. M. Belshaw 1936-5-8 2056 Contra Costa Mt. Diablo Mt. Diablo Quadrangle 990 Comment
  UC148547  Trifolium albopurpureum var. albopurpureum Katharine Brandegee 1909-4-24 Contra Costa Antioch Comment
  UC148552  Trifolium albopurpureum var. albopurpureum Katharine Brandegee 1909-4-24 Contra Costa Antioch Comment
  UC555617  Trifolium albopurpureum var. albopurpureum H. L. Mason 1929-5-7 5261 Contra Costa Moraga Ridge Comment
  UC2028945  Trifolium albopurpureum var. albopurpureum Barbara Ertter 2003-4-9 18144 Contra Costa Shell Ridge Open Space on west base of Mount Diablo, Upper Buck Trail on SW side of Deer Hill. Comment
  RSA91071  Trifolium albopurpureum var. olivaceum Alice Eastwood, John T. Howell 1936-4-19 2132 Contra Costa Nortonville. Comment
  UC631264  Trifolium albopurpureum var. olivaceum Mrs. Brandegee May 1907 Contra Costa Antioch Comment
  UC764663  Trifolium bifidum var. bifidum R. F. Hoover 1938-5-4 3352 Contra Costa e Tassajero Creek (peak) Comment
  POM300697  Trifolium bifidum var. decipiens Mary L. Bowerman 681 Contra Costa South of Russelman Parak. 381 Comment
  UC2070457  Trifolium bifidum var. decipiens Barbara Ertter 2000-5-14 16998 Contra Costa Lower Donner Canyon on north side of Mount Diablo. Comment
  CDA25739  Trifolium ciliolatum D. G. Kelch 2008-4-12 8 .037 Contra Costa Mt Diablo. Mitchell Canyon. Along road looping north of main Mitchell Canyon Rd. Comment
  POM203632  Trifolium ciliolatum J. T. Howell 11245 Contra Costa Hills east of St. Marys College. Comment
  CHSC116610  Trifolium depauperatum var. amplectens Lowell Ahart; Josephine Guardino 2016-4-19 20756 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 dmiles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  UC338048  Trifolium depauperatum var. depauperatum Edw. L. Greene 1889-3-23 Contra Costa Byron Comment
  UC630935  Trifolium depauperatum var. depauperatum P. B. Kennedy 1928-4-19 10049 a Contra Costa Byron Hot Springs, near [golf links] Byron Hot Springs Comment
  UCSC011140  Trifolium depauperatum var. laciniatum Randy Morgan 1999-5-30 3510 Contra Costa Originally from Byron Springs Rd Comment
  UC1543246  Trifolium depauperatum var. truncatum Donald G. Nelson 1937-3-30 476 Contra Costa a few mi s Byron (on rr tracks paralleling the hwy, on rd ro Tracy) Comment
  UC1795835  Trifolium depauperatum var. truncatum Barbara Ertter, Gary Schoolcraft 1996-4-7 14571 Contra Costa Point San Pablo in west Richmond, crest of road to yacht harbor, coastal grassland along ridge, scraped roadbed to tower. Comment
  UCD108394  Trifolium depauperatum var. truncatum P. B. Kennedy 1929-4-21 10227 Contra Costa Franklin Canyon Road from Concord Soldier's Monument. 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
  JEPS65884  Trifolium fucatum E. L. Greene 1889-3-25 Contra Costa Byron Comment
  UC400160  Trifolium fucatum Ynes Mexia 1929-4-21 2371 Contra Costa Moraga Valley Comment
  UC70194  Trifolium fucatum J. Burtt Davy 1898-5-1 Contra Costa Region of Mount Diablo, Danville Danville; Region of Mount Diablo, Danville Comment
  UC419042  Trifolium fucatum H. E. and S. T. Parks 1930-4-1 542 Contra Costa along hwy (in ditches); San Ramone Comment
  RSA90947  Trifolium fucatum var. fucatum J. T. Howell 1933-5-14 11237 Contra Costa St. Mary's College. Comment
  CDA27956  Trifolium gracilentum D. G. Kelch, A. G. Murdock 2005-4-2 5 .106 Contra Costa Carquinez Strait Region; Alhambra Valley. EBMUD land. North of intersection of Alhambra Valley Road and Castro Ranch Road. Comment
  UC16557  Trifolium gracilentum W. H. Brewer 1862-5-19 1116 Contra Costa n Kirker's Pass Comment
  UC692678  Trifolium gracilentum Mary L. Bowerman 1935-4-26 2908 Contra Costa w Indian Ceremonial Springs; Mount Diablo 1005 Comment
  JEPS99601  Trifolium hirtum Mary Bowerman 1995-5-21 Contra Costa Mount Diablo, Wall Pt. fire road perhaps 1/2 mile from South Gate Rd., near Tom Brumleve's home; also other places along North Gate Rd. Comment
  UC1819040  Trifolium hirtum Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14238 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
  UC555619  Trifolium macraei H. L. Mason 1928-4-13 4303 Contra Costa Richmond waterfront Comment
  CDA29541  Trifolium microcephalum D. G. Kelch, Troy MacGregor 2009-5-1 9 .271 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  UC631555  Trifolium microcephalum P. B. Kennedy 1925-4-25 Contra Costa rd to Sycamore Canyon; Mt Diablo Comment
  UC692244  Trifolium microcephalum Mary L. Bowerman 1932-4-9 1327 Contra Costa e south spur on meridian (small ridge, Inner Black Hills); Mount Diablo Comment
  UC692245  Trifolium microcephalum Mary L. Bowerman 1935-4-26 2910 Contra Costa w Indian Ceremonial Spring; Mount Diablo 1005 Comment
  UC692250  Trifolium microcephalum Mary L. Bowerman 1935-4-12 2814 Contra Costa 2 mi from entrance (= Northgate) (w rd (=n rd)); Mount Diablo 259 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
  UC692254  Trifolium microdon Mary L. Bowerman 1935-5-1 2933 Contra Costa 2 mi from entrance (West Road (=North Road)); Mount Diablo, West Road (=North Road) 182 Comment
  UC692255  Trifolium microdon Mary L. Bowerman 1933-5-17 2111 Contra Costa due s Olafson's barn (branch of Curry Canyon, on ridge between the two forks of the canyon); Mount Diablo Comment
  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
  UC630888  Trifolium oliganthum Mrs. K. Brandegee may 1907 Contra Costa Antioch Comment
  UC2027837  Trifolium oliganthum Barbara Ertter with Dan Norris 2001-4-15 17609 Contra Costa West side Mount Diablo, head of W-facing drainage west of China Wall rock formation (off trail between Hanging Valley Trail and China Wall Road). Comment
  UC2028955  Trifolium oliganthum Barbara Ertter 2003-3-28 18135 Contra Costa Round Valley Regional Preserve, mid Hardy Canyon along High Creek. Comment
  UC2029052  Trifolium oliganthum Barbara Ertter 2000-3-30 16904 Contra Costa North base of Mount Diablo, lower Mitchell Canyon ca 1.5 miles from trailhead. Comment
  UCD32493  Trifolium olivaceum Beecher Crampton 1950-4-22 534 Contra Costa Contra Costa County, along State Highway 4, in Concord Valley. 30 Comment
  RSA721202  Trifolium olivaceum var. olivaceum Barbara Ertter 1995-5-29 14225 Contra Costa Mt. Diablo southeast of Walnut Creek, serpentine knoll ca 1/2 airmile north of Curry Point 488 Comment
  UC1543244  Trifolium willdenovii Donald G. Nelson 1937-3-30 474 Contra Costa s Byron (on rd to Tracy along rr tracks paralleling hwy) Comment
  UC16747  Trifolium willdenovii H. P. Chandler 1900-3-24 587 Contra Costa Briones HIlls Mt. Diablo region Comment
  UC692240  Trifolium willdenovii Mary L. Bowerman 1935-4-12 2816 Contra Costa 2 mi from entrance = North Gate (w rd = n rd); Mount Diablo 259 Comment
  UC692241  Trifolium willdenovii Mary L. Bowerman 1930-6-5 251 Contra Costa 5.8 mi from entrance (w rd = n rd); Mount Diablo Comment
  POM300698  Trifolium willdenovii Mary L. Bowerman 1933-5-11 2083 Contra Costa Inner Black Hills: Grassy ridge, west end. Comment
  RSA517735  Trifolium willdenovii Donald G. Nelson 1937-3-30 474 Contra Costa Railroad tracks paralleling the highway south of Byron on road to Tracy Comment
  CAS-BOT-BC451764  Triglochin maritima Walter Knight; Joanne Dean No date on label 3131 Contra Costa Browns Island. Comment
  UC2028389  Triglochin striata Barbara Ertter with Tony Morosco 1998-7-11 16373 Contra Costa Antioch Marina, in riverside trail marsh Comment
  SEINET3888793  Trillium ovatum Clayton Newberry 1994-3-12 7162 Contra Costa North Coastal Range Forest. Huckleberry Regional Preserve, Skyline Trail.; 0 244 Comment
  SEINET10275395  Trillium ovatum Unknown 1963-4-28 94 Contra Costa Steep north slope about 50 ft above canyon bottom opposite Flicker Ridge 1/4 mi w of Moraga Way, E of Oakland; elev 550 ft.. 167 Comment
  JEPS99565  Triodanis biflora Mary Bowerman 1995-5-28 Contra Costa Mount Diablo, knoll on N side of Wall Point Trail 1/2 encircled on W and N sides by road from macedo Ranch to Pine Pond. 304 Comment
  JEPS23787  Triphysaria eriantha subsp. eriantha Rimo Bacigalupi with Paul C. Hutchison and John Weiler 1959-3-19 6970 Contra Costa junction of Holey Road and Byron Road about 2.9 mi se Byron 4 Comment
  UC1861821  Triphysaria pusilla Barbara Ertter, Lisa Schultheis 1995-4-27 14002 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; at end of Arbolado Dr. 121 Comment
  UC691989  Triteleia hyacinthina Mary L. Bowerman 1938-6-3 3651 Contra Costa Rock City Mount Diablo (gentle n-facing slope) 518 Comment
  CDA9474  Triteleia laxa D. G. Kelch 2004-3-13 4 .039 Contra Costa East Bay; Corner of Deer Valley Rd. and Briones Valley Rd. Comment
  CHSC21624  Triteleia laxa Willis Ball 1975-3-25 505 Contra Costa In area #1. On s side of road leading to main parking lot at s end of lake ca. 35 yds e of parking lot. Contral Costa Regional Park. 38 Comment
  JEPS112496  Triteleia laxa D. G. Kelch 2004-5-9 04 .204 Contra Costa Crockett - Upper Edwards Canyon, Crockett, above Crockett Blvd 160 Comment
  JEPS58064  Triteleia laxa W. L. Jepson 1919-6-8 8332 Contra Costa Mt. Diablo Comment
  UC130929  Triteleia laxa Katharine Brandegee 1909-4-24 Contra Costa Antioch Comment
  CAS-BOT-BC526327  Triteleia laxa Barrett Anderson 1987-4-30 3501 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road 125 Comment
  UC2028145  Triteleia laxa Barbara Ertter 1998-4-4 15970 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, Fossil Hill. 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
  RSA428387A  Tropidocarpum capparideum Edward L. Greene 1889-3-24 s.n. Contra Costa Byron Comment
  UC14396  Tropidocarpum capparideum Edw. L. Greene 1889-3-23 Contra Costa Byron Springs Comment
  UCR81450  Tropidocarpum capparideum Edward L. Greene 1888-3-25 s.n. Contra Costa Byron Springs 107 Comment
  CAS-BOT-BC67402  Tropidocarpum gracile Alice Eastwood 1914-3-14 3783 Contra Costa Byron Springs. Comment
  SBBG27387  Tropidocarpum gracile L. S. Rose 1934-3-21 34066 Contra Costa 6 mi E of Clayton Comment
  UC673305  Tropidocarpum gracile H. L. Mason 1929-3-31 5152 Contra Costa sand dike along river at Antioch; San Joaquin River Comment
  CAS-BOT-BC67412  Tropidocarpum gracile Mary L. Bowerman 1931-3-29 614 Contra Costa Mount Diablo. Riggs Canyon, at foot of Cave Point ridge. Comment
  POM204031  Tropidocarpum gracile L. S. Rose 1934-3-21 34066 Contra Costa 6 mi E of Clayton. Comment
  CDA15285  Typha angustifolia G. F. Hrusa, D. Crowe, R. York 1998-7-17 14723 Contra Costa Sacramento Delta; Small colony and a few scattered inds. in bottom of now dry drainage/wash through disturbed grasslands at E end of Dow Chemical property. Site clearly wet earlier in season, but w/out standing water at this time. Comment
  RSA721868B  Ulmus minor Barbara Ertter, Richard K. Rabeler 1994-6-18 12837 Contra Costa Pt. Pinole Regional Shoreline at north end of Richmond; northeast corner of park, near jct Marsh Trail and Cook's Point Trail. Comment
  UC2028231  Ulmus minor Barbara Ertter 1998-11-15 16465 Contra Costa North side Mount Olympia on north side Mount Diablo. Comment
  JEPS100055  Umbellularia californica G. Smick 2003-2-20 GAS 47 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS112487  Umbellularia californica D. G. Kelch 2003-2-7 03 .37.B Contra Costa Franklin Canyon 115 Comment
  UC1196278  Umbellularia californica Joseph P. Tracy 1930-11-27 9262 Contra Costa near Lafayatte 152 Comment
  UC588152  Umbellularia californica Annetta Carter 1937-3-20 1224 Contra Costa 2 mi nw of Orinda (Lake Orinda Road); Lake Orinda Road 121 Comment
  UC691944  Umbellularia californica Mary L. Bowerman 1931-2-8 514 Contra Costa Summit of Mount Diablo Mount Diablo Comment
  CDA37275  Umbellularia californica D. G. Kelch 2009-12-21 9 .712 Contra Costa Vicinity of Richmond; canyon northeast of Alvarado Park. 0 Comment
  UC691468  Uropappus lindleyi Mary L. Bowerman 1933-5-9 2060 Contra Costa Muir Area , Muir Area (Mount Diablo) Comment
  CAS-BOT-BC403927  Urtica dioica subsp. gracilis Joseph Andorfer Ewan 1934-1-14 8160 Contra Costa Wildcat Canyon, one mile below ranch house Comment
  CAS-BOT-BC404065  Urtica dioica subsp. holosericea Vincent Jones 1920-8-29 s.n. Contra Costa Orwood Comment
  CHSC116352  Urtica urens D. G. Kelch 2006-2-25 6084 Contra Costa Carquinez Strait: Crockett. Edwards Canyon. 53 Comment
  UC2028528  Urtica urens Barbara Ertter 1998-1-4 15887 Contra Costa South end Diablo Foothills Regional Park southeast of Walnut Creek, Alamo Trail near junction with Hanging Valley Trail. Comment
  CHSC20601  Vaccinium ovatum Robert A. Schlising; Glenn Keator 1962-4-25 2186 Contra Costa Coast Ranges. Near country club on Manzanita Drive. Comment
  JEPS77019  Vaccinium ovatum Robert M. Lloyd 1963-3-17 2145 Contra Costa 0.5 mi e intersection of Grizzly Peak Road and Skyline Drive (on Skyline (across from 7090 Skyline), Huckleberry trail) Comment
  UCD118078  Vaccinium ovatum Beecher Crampton 1957-11-20 4650 Contra Costa Border of Alameda county line. East facing slope, between Round and Redwood Regional Parks, Berkeley Hills. Comment
  UC1714515  Verbascum blattaria unknown July 1892 Contra Costa Redwood Peak Comment
  UC454110  Verbena hastata I. J. Condit 1908-8-20 Contra Costa Oakley Comment
  CHSC116626  Veronica peregrina subsp. xalapensis Lowell Ahart; Josephine Guardino 2016-4-19 20781 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Below the high water line of Los Vaqueros Reservoir, 1.4 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  UC41835  Veronica peregrina subsp. xalapensis Chesnut and Drew April, 1889 Contra Costa Clayton Comment
  CHSC21626  Veronica serpyllifolia subsp. serpyllifolia Willis Ball 1975-3-26 510 Contra Costa Contra Loma Regional Park. In area #1. On s side of lake ca. 50 yds e of restroom facilities. 30 Comment
  UC1005955  Viburnum cylindricum N. Floy Bracelin 1945-2-4 2075 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1050168  Viburnum japonicum N. Floy Bra