Search Results — 2000 specimen records retrieved (1369 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
  UCD116164  Abutilon theophrasti R. P. Allen; Perry Allen 1961-8-11 s.n. Contra Costa Adventive four miles east of Byron. Comment
  CAS-BOT-BC177068  Acacia melanoxylon Walter Knight 1978-7-13 3102 Contra Costa Browns Island Comment
  CAS-BOT-BC436988  Acaena pinnatifida var. californica H. M. Hall 1901-3-17 1655 Contra Costa Point Richmond Comment
  JEPS42648  Acer macrophyllum W. L. Jepson 1916-10-28 6853 a Contra Costa Las Trampas Creek Comment
  SEINET12234133  Acer macrophyllum M. T. Doutt 1930-1 78 Contra Costa Marsh Creek Comment
  SEINET3195242 Image available Acer negundo var. californicum Annetta Carter 1937-4-4 1229 Contra Costa Creek bank, Moraga Valley, 2.5 miles north of Moraga 180 Comment
  CAS-BOT-BC334179  Acer negundo var. californicum Mary L. Bowerman 1931-10-23 1063 a Contra Costa Mount Diablo. Riggs Canyon mouth 228 Comment
  JEPS111675  Achillea millefolium D. G. Kelch 2003-8-13 03 .102 Contra Costa Martinez Marsh 0 Comment
  UC88435  Achyrachaena mollis T. S. Brandegee 1892-5-1 Contra Costa Antioch Comment
  POM54982  Achyrachaena mollis C. F. Baker 1903-4-27 15565 Contra Costa Byron. Comment
  UCD32385  Achyrachaena mollis Beecher Crampton 1950-4-22 529 Contra Costa above Sand Creek, on hills to north above Lone Tree Valley 106 Comment
  CDA19145  Acroptilon repens R. M. Case 2001-7-1 PDR P 088757 Contra Costa San Francisco Bay Region; In East Bay Municipal Utility District Water Department on Hookston Rd 1, Pleasant Hill. 0 Comment
  CDA35657  Acroptilon repens Vince Guise 2011-8-2 PDR# 1649692 Contra Costa Discovery Bay; southwest corner of Discovery Bay Blvd. and Clipper Dr. 0 Comment
  SEINET4089806  Adenostoma fasciculatum B. C. Templeton 1962-1 sn Contra Costa Mount 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
  UCD112582  Adenostoma fasciculatum Beecher Crampton 1949-7-15 481 Contra Costa Site of old coal mining town of Judsonville. Comment
  RSA453156  Adenostoma fasciculatum var. fasciculatum Bonnie C. Templeton 1962-6-20 s.n. Contra Costa Mount Diablo 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
  SEINET6412858  Adiantum jordanii C. Newberry 1994-4-30 7255 Contra Costa Mount Diablo State Park, trail from Mitchell Cn. Prkng to Donner Cr. 900 Comment
  JEPS40093  Aesculus californica W. L. Jepson 1918-6-5 7616 Contra Costa Donner Canyon; Mt. Diablo 228 Comment
  UC2028123  Agoseris grandiflora Barbara Ertter with Richard K. Brummitt 1998-5-6 16085 Contra Costa Lower Donner Canyon on north base of Mount Diablo, near Donner Cabin site. Comment
  JEPS75562  Agoseris grandiflora var. grandiflora P. F. Yorks 1975-5-15 400 Contra Costa ca 1.6 km s, on Hampton Rd in Hampton Road National Reserve Bear Creek Road; Briones Reservoir, Hampton Road National Reserve 180 Comment
  UC1125464  Agoseris grandiflora var. grandiflora C. M. Belshaw 1936-5-12 2102 Contra Costa 2 mi ese of Mt. Diablo; Mt. Diablo Quadrangle 335 Comment
  UC202932  Agoseris grandiflora var. grandiflora Chesnut and Drew 1889-4-15 Contra Costa Martinez 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
  CAS-BOT-BC22973  Agoseris heterophylla Mary L. Bowerman 1933-5-8 2013 Contra Costa Mt. Diablo. Fossil Ridge near crest, north side by side road. Comment
  POM52175  Agoseris heterophylla C. F. Baker 1903-4-28 2831 Contra Costa Marsh Creek, Mt. Diablo. Comment
  CHSC116630  Agrostis avenacea Lowell Ahart; Josephine Guardino 2016-4-19 20787 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Below the high water line of Los Vaqueros Reservoir, 1.4 miles (air) northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  UC2028536  Agrostis capillaris Barbara Ertter with Amy Rusev 1998-1-17 15903 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
  UC692365  Agrostis exarata Mary L. Bowerman 1932-11-12 1647 Contra Costa Canyon Spring (upper) Mount Diablo 1005 Comment
  UCD37372  Agrostis exarata var. pacifica Beecher Crampton 1959-9-3 5455 Contra Costa Contra Costa County, 2 miles north of city of Orinda, Bear Creek, East Bay Municipal Utilities District Project. Comment
  UC2028526  Agrostis hallii Barbara Ertter 1997-11-1 15883 Contra Costa South side Mount Diablo, end of spur road east of Knobcone Point, below powerline crossing at head of Alamo Creek drainage. Comment
  CDA29913  Agrostis pallens D. G. Kelch, Suzanne Latham, Matt Beyers 2009-6-3 9 .335 Contra Costa East Bay.; El Sobrante Ridge at end of Silver Belt Dr. on Miocene chert outcrop. Comment
  CDA9763  Agrostis pallens D. G. Kelch 2002-5-24 2 .019 Contra Costa Carquinez Strait; Crockett. On hill S of San Pablo Ave ~0.4 miles W of Carquinez Bridge. Comment
  UC50548  Agrostis viridis Jos. Burtt Davy 1897-9-4 4082 Contra Costa Stege Comment
  UC2028373  Aira caryophyllea Barbara Ertter 1998-6-20 16233 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo. Alkali Pond at Wiget Lane entrance. Comment
  CAS-BOT-BC445380  Alisma plantago-aquatica Mary L. Bowerman 1933-9-9 2429 Contra Costa Mount Diablo. Frog Pond. Comment
  UC2028451  Alisma triviale Barbara Ertter with Joanne Kerbavaz 2000-8-20 17500 Contra Costa Frog Pond on southeast side of Mount Diablo Comment
  CAS-BOT-BC175357  Allenrolfea occidentalis David D. Keck 1933-8-23 2515 Contra Costa Byron Hot Springs, eastern Contra Costa County Comment
  CDA9505  Allenrolfea occidentalis D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .232 Contra Costa Byron Airport. Comment
  RSA107394  Allenrolfea occidentalis L. S. Rose 1955-9-12 55173 Contra Costa 2 miles E of Byron. 15 Comment
  UC116546  Allenrolfea occidentalis K. Brandegee Oct. 1887 Contra Costa Antioch 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
  UC3070  Allium falcifolium W. H. Brewer 1862-5-7 1060 Contra Costa summit Mt. Diablo; summit of Mt. Diablo Comment
  CAS-BOT-BC469111  Allium falcifolium L. R. Abrams 1921-5-25 2038 Contra Costa Summit Mt. Diablo Comment
  CAS-BOT-BC469112  Allium falcifolium L. R. Abrams 1921-5-25 8038 Contra Costa Mt. Diablo, Summit Comment
  UC64077  Allium serra H. M. Hall 1900-3-23 Contra Costa Lauterwasser Creek Comment
Read comments Jul 22 2008
  UC85605  Allium serra Katharine Brandegee 1907-5-5 Contra Costa bet. Antioch and Marsh Creek Comment
  UC3116  Allium unifolium State Survey 1174 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC476605  Allium unifolium Alice Eastwood 1916-5-30 4454 Contra Costa Mt. Diablo near base Comment
  SEINET8731247 Image available Allocarya stipitata Lewis S. Rose 1936-1 36155 Contra Costa 8 mi. S. of Antioch 30 Comment
  UC691647  Allophyllum gilioides subsp. gilioides Mary L. Bowerman 1935-4-26 2904 Contra Costa w. Indian Ceremonial Spring (Mt. Diablo); Mt. Diablo 1021 Comment
  UC1093922  Alnus rhombifolia Herbert L. Mason 1924-11-23 1159 Contra Costa Las Trampas Ridge; via Cashion Comment
  UC13501  Alnus rhombifolia W. C. Blasdale 1891-3-7 Contra Costa San Pablo Comment
  POM300606  Alnus rhombifolia Mary L. Bowerman 1931-10-13 1058 Contra Costa Alamo Canyon. Mount Diablo. 259 Comment
  JEPS113358  Alopecurus myosuroides Bob Battagin 2007-3-9 Contra Costa San Pablo Reservoir, W shore. Comment
  SJSU7865  Alopecurus myosuroides H. G. Reeves 1972-4-7 Contra Costa W shore of San Pablo Reservoir near Bench Mark 24, 7 mi S of Dam 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
  CDA37403  Amaranthus albus D. G. Kelch, Mike Perlmutter 2011-9-23 11 .758 Contra Costa Entry to Discovery Bay. Comment
  POM300587  Amaranthus albus Mary L. Bowerman 1932-8-27 1515 Contra Costa Pond south of Turtle Rock Comment
  SEINET3840792  Amaranthus cruentus Dean G. Kelch, Andrew G. Murdock 2005-6-27 5 .392 Contra Costa Carquinez Strait, Sixth street at Lillian Street in vegetable garden, Crockett, common garden weed 33 Comment
  CDA22507  Amaranthus deflexus D. G. Kelch, Mike Park 2008-9-1 8 .301 Contra Costa Carquinez Strait; Lonetree Point. Rodeo Shoreline Park. Rodeo. Comment
  UC691916  Amaranthus retroflexus Mary L. Bowerman 1938-10-15 3727 Contra Costa North Road, by trail to w of spring Mount Diablo 213 Comment
  UCD55999  Ammophila arenaria Morris Halperin; Earl J. Coke 1930-5-20 s.n. Contra Costa Sand near Antioch. Comment
  UCD33151  Ampelodesmos mauritanicus Beecher Crampton 1966-10-18 7816 Contra Costa Contra Costa County, Kensington, Berkeley Hills Blake Garden, UC Berkeley Dept. of landscape architecture. Comment
  CAS-BOT-BC222228  Amsinckia Alice Eastwood; John Thomas Howell 1936-4-19 2141 Contra Costa Somersville Comment
  CAS-BOT-BC222231  Amsinckia John Thomas Howell 1933-3-29 10916 Contra Costa Pittsburg Comment
  CAS-BOT-BC222232  Amsinckia John Thomas Howell 1933-3-29 10908 A Contra Costa Nortonville hills Comment
  UC1094074  Amsinckia eastwoodiae Francia Chisaki 1952-3-13 201 Contra Costa 0.25 mi s of Hwy 50 on Mountain House Road Comment
  JEPS25352  Amsinckia intermedia Rimo Bacigalupi with Paul C. Hutchison and John Weiler 1959-3-19 6962 Contra Costa 2.4 mi w of Byron (and 0.3 mi e of junction with Vasco Road, along Camino Diablo); Camino Diablo 60 Comment
  JEPS73693  Amsinckia intermedia L. R. Heckard with Wm. Hirano and Ted Niehaus 1968-3-5 1762 Contra Costa 3 mi se Byron (at junction of Holey Road, along Byron-Bethany Road) 7 Comment
  SEINET12479829  Amsinckia intermedia R. R. Halse 1988-2-20 3541 Contra Costa Along State Hwy 4, near its junction with Balfour Road, S edge of Brentwood. 23 Comment
  RSA0090977  Amsinckia intermedia Barbara Ertter, Jim Jokerst, Dave Magney 1989-4-5 8130 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  RSA201409  Amsinckia intermedia J. T. Howell 1933-5-14 11225 Contra Costa St. Mary s College Comment
  JEPS20865  Amsinckia lunaris R. F. Hoover 1938-4-20 3178 Contra Costa lower end San Pablo Reservoir Comment
  UCD119713  Amsinckia lunaris Francia Chisaki; Peter Kamb 1952-5-4 2275 Contra Costa Bear Creek Road, 1.5 miles east of Orinda-Richmond road (leaving this road ca. 1 mile north of Orinda). Comment
  UC1178245  Amsinckia menziesii var. menziesii Francia Chisaki and R. Bacigalupi 1957-3-27 911 Contra Costa 1.5 mi e of Antioch City limits (just e of Kaiser Gypsum Plant along Wilbur Avenue) Comment
  UC24597 Image available Amsinckia tessellata J. Burtt Davy 1895-4-7 931 Contra Costa Antioch; ; Antioch, Contra Costa Co. Comment
  CHSC116622  Anagallis arvensis Lowell Ahart; Josephine Guardino 2016-4-19 20784 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
  CHSC75115  Anagallis arvensis Roger Thom 1987-5-26 21 Contra Costa 2800 block of Buena Vista Ave. Walnut Creek. 30 Comment
  UC2062621  Anagallis arvensis Barbara Ertter with Joanne Kerbavaz et al. 2003-5-8 18173 Contra Costa South Gate Road on south side of Mount Diablo. Comment
  UC635714  Anagallis arvensis A. E. Borell 1928-3-18 26 Contra Costa w. slope Mt. Diablo Comment
  UCD117436  Anagallis arvensis Jennifer Davies 1982-4-11 5 Contra Costa 1 mile NW of South Checking Station on South Gate Road, Mt. Diablo. 487 Comment
  UC196982  Ancistrocarphus filagineus Chesnut and Drew 1889-4-18 Contra Costa sand hills Antioch Comment
  JEPS13787  Androsace elongata subsp. acuta Mary L. Bowerman 1935-4-22 2888 Contra Costa ridge w Pioneer Road (w of Old Stage Road, crest of ridge and on the e face Mount Diablo); Mount Diablo 853 Comment
  CAS-BOT-BC400255  Anemopsis californica A. D. E. Elmer 1903-6-1 4870 Contra Costa Walnut Creek Comment
  UC4888  Anemopsis californica W. L. Jepson May 23 1891-May 24 1891 Contra Costa near Mount Diablo Comment
  POM161362  Anemopsis californica R. C. Bacigalupi 1926-4-30 1347 Contra Costa About 3 miles E of Walnut Creek on Mt. Diablo Rd. Comment
  UC2029069  Anemopsis californica Barbara Ertter 2000-7-16 17416 Contra Costa Borges Creek on east side Borges Ranch Road on NW base of Mount Diablo, downstream from fire road junction. Comment
  UC692259  Angelica californica Mary L. Bowerman 1932-5-6 1420 Contra Costa Mount Diablo, Mitchell Canyon Mitchell Canyon; Mount Diablo, Mitchell Canyon 228 Comment
  UC692562  Angelica californica Mary L. Bowerman 1935-6-21 3149 Contra Costa Mount Diablo, e fork of Arroyo del Cerro Arroyo del Cerro; Mount Diablo, Arroyo del Cerro 274 Comment
  UC692563  Angelica californica Mary L. Bowerman 1935-6-21 3149 Contra Costa Mount Diablo, e fork of Arroyo del Cerro Arroyo del Cerro; Mount Diablo, Arroyo del Cerro 274 Comment
  CHSC75049  Anthemis cotula Roger Thom 1987-5-27 24 Contra Costa 1900 block of Olympic Blvd. (at Newell Ave.), Walnut Creek. 15 Comment
  UC40554  Anthemis cotula Brewer May 1862 1177 Contra Costa Comment
  UC2029053  Aphanes occidentalis Barbara Ertter 2000-3-30 16905 Contra Costa North base of Mount Diablo, lower Mitchell Canyon ca 1.5 miles from trailhead. Comment
  SEINET3156065  Apiastrum angustifolium T. S. Brandegee sn Contra Costa Mt. Diablo Comment
  SEINET13943445 Image available Apium graveolens Joseph Andorfer Ewan 1936-1 9714 Contra Costa Wildcat Creek Comment
  UC692207  Aquilegia eximia Mary L. Bowerman 1933-6-2 2331 Contra Costa Donner Canyon Mount Diablo Comment
  JEPS53024  Arabis glabra W. L. Jepson 1891-6-9 13388 Contra Costa Fish Ranch Road Berkeley Hills Comment
  JEPS111945  Arbutus menziesii D. G. Kelch 2004-9-2 04 .339 Contra Costa Martinez - West: Ozol Rock and Scenic Drive. East of Ozol 30 Comment
  OBI22876  Arbutus menziesii Cathy Peterson 1971-11-6 11 Contra Costa Mount Diablo, South side, approx. 45 yds from Rock City entrance 610 Comment
  CAS-BOT-BC407800  Arceuthobium campylopodum L. R. Abrams 1910-10-8 4356 Contra Costa Mt. Diablo Comment
  UC1085344  Arceuthobium campylopodum Job Kuijt 1957-9-29 1425 a Contra Costa Rock City Mount Diablo Comment
  UC2028513  Arceuthobium campylopodum Barbara Ertter 1996-11-24 15417 Contra Costa Southwest side of Mount Diablo, Wall Point Road across Pine Ridge ca 1/2 air miles ENE of Macedo Ranch. Comment
  UC615582  Arceuthobium campylopodum Beryl O. Schreiber 1933-10-5 937 Contra Costa rd to Mt Diablo Comment
  SEINET12524523 Image available Arctostaphylos andersonii L. S. Rose 1934-1 34010 Contra Costa Summit of Oakland hills above redwood canyon. Comment
  CAS-BOT-BC24119  Arctostaphylos auriculata John Thomas Howell 1931-5-12 6477 Contra Costa Nortonville Comment
  JEPS96259  Arctostaphylos auriculata Dean Kelch 1995-3-14 97 .15 Contra Costa Rock City Mt. Diablo; e. contra Costa Co., , Rock City 457 Comment
  RSA622482  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27598 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments Jan 30 2013
  RSA622488  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27603 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments Jan 30 2013
  UC1120860  Arctostaphylos auriculata H. A. Jensen 1938-10-27 456 Contra Costa head of Sycamore Creek Mt. Diablo Quadrangle Comment
  UC1485916  Arctostaphylos auriculata H. Stout and T. Wainwright 1980-3-27 2 Contra Costa 1 mi s Morgan Territory Rd. (on ridge-top); Mallory Ranch 609 Comment
  UC549568  Arctostaphylos auriculata J. E. Adams 1934-3-19 672 Contra Costa Mt. Diablo Comment
  UCD50260  Arctostaphylos auriculata Edward Lee 1936-1-12 1713 Contra Costa Immediately south of Nortonville. Comment
  SEINET11998374  Arctostaphylos canescens subsp. malloryi W. Knight, Knight, I. 1988-1 6478 Contra Costa Tilden Regional Park, Regional Parks Botanic Garden, originally from Iron Mt. in Shasta Co 914 Comment
  CAS-BOT-BC23589  Arctostaphylos crustacea Steve Abbors 1980-3-24 s.n. Contra Costa Chamise Trail. Las Trampas Regional Wilderness, Las Trampas Ridge Comment
  SEINET11989683  Arctostaphylos crustacea Unknown 1982-1 20829 Contra Costa on Rocky Ridge, about half way down from summit ridge (on 2nd-middle-shelf on ridges), Las Trampas 183 Comment
  CAS-BOT-BC24860  Arctostaphylos glandulosa subsp. cushingiana Walter Knight; Irja Knight 1980-3-16 3716 Contra Costa Sobrante Ridge between Heavenly Ridge Lane and Castro Ranch Road, El Sobrante. Comment
  CAS-BOT-BC24850  Arctostaphylos glandulosa subsp. glandulosa H. E. McMinn 1923-3-6 875 Contra Costa Contra Costa Co. Comment
  RSA367269  Arctostaphylos glandulosa subsp. glandulosa H. E. McMinn 1923-3-6 875 a Contra Costa Mt. Diablo. Comment
  CAS-BOT-BC24659  Arctostaphylos glauca H. E. McMinn 1922-10-17 411 Contra Costa From Mitchell Canyon, Mt. Diablo. Comment
  UC1795672  Arctostaphylos glauca Barbara Ertter, Holly Forbes 1996-2-11 14548 Contra Costa North side Mount Diablo; Murchio Gap on Median Ridge Road, chaparral on serpentine-derived clay; regrowth after burn of several years previous 731 Comment
  UC570417  Arctostaphylos glauca Chas. M. Belshaw 1936-10-26 2720 Contra Costa 3/4 mi ne North Peak; Mt. Diablo 609 Comment
  UC692232  Arctostaphylos glauca Mary L. Bowerman 1933-3-11 1748 Contra Costa in gully nw park entrance (outer s face of ridge); Mount Diablo, Rock City Ridge (=Fossil Ridge) Comment
  UC692498  Arctostaphylos glauca Mary L. Bowerman 1931-11-21 1068 Contra Costa near canyon bottom and Bilharan Mount Diablo, Donner Canyon Comment
  SEINET11989152  Arctostaphylos glauca B. A. Stein 1981-1 461 Contra Costa Mt. Diablo State Park, Juniper Camp 884 Comment
  CAS-BOT-BC27256  Arctostaphylos laevigata Alice Eastwood 1922-3-17 11082 Contra Costa Mt. Diablo Comment
  RSA632813  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27589 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  RSA632824  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27591 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  UCSB22281  Arctostaphylos manzanita McMinn, H. 1936-4-11 Contra Costa Mt. Diablo; head of Sycamore Canyon Comment
  CAS-BOT-BC38879  Arctostaphylos manzanita subsp. laevigata H. E. McMinn 1923-3-6 884 Contra Costa Along roadside 1/4 (?) way from top of Mt. Diablo Comment
  JEPS124457  Arctostaphylos manzanita subsp. laevigata Daniel Slakey with CNPS Volunteers 2015-6-29 132 Contra Costa Wall Point Rd, along a roughly 1 km stretch of road just west of Wall Point. Comment
  UC692217  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1932-1-30 1084 Contra Costa near firetrail w northeast fork of Sycamore Creek ((turn off ridge at fence where main ridge bends abruptly to north, follow fence)); Mount Diablo, Inner Black Hills Comment
  UC692220  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1932-9-5 1544 Contra Costa large spur on meridian which heads into Sycamore Canyon (crest of ridge); Mount Diablo Comment
  RSA0027948  Arctostaphylos manzanita subsp. laevigata Barbara Ertter 1997-9-14 15818 Contra Costa Southwest side of Mount Diablo, Wall Point Road on ridge northwest of Wall Point. Comment
  CAS-BOT-BC24387  Arctostaphylos manzanita subsp. manzanita Alice Eastwood; John Thomas Howell 1936-4-19 2129 Contra Costa Nortonville. Comment
  CAS-BOT-BC24388  Arctostaphylos manzanita subsp. manzanita Walter Knight; Irja Knight 1968-1-22 2274 Contra Costa In El Sobrante on Skyline Drive. 76 Comment
  JEPS97533  Arctostaphylos pallida R. D. Stone 1981-1-31 335 Contra Costa Huckleberry Trail Oakland Hills, near Alameda-Contra-Costa county line (NE of intersection of Skyline Blvd. and Snake Rd.) Comment
  SEINET11987134  Arctostaphylos pungens subsp. laevigata W. Knight, Knight, I. 1980-1 3824 Contra Costa Tilden Botanic Garden, orig. from Mt. Diablo Comment
  JEPS46276  Arctostaphylos tomentosa subsp. crustacea W. L. Jepson 1943-6-19 20851 Contra Costa Moraga Ridge Comment
  JEPS48825  Arctostaphylos tomentosa subsp. crustacea H. M. Wheeler 1944-1-16 27508 Contra Costa Moraga Ridge Oakland Hills Comment
  RSA202867  Arctostaphylos tomentosa subsp. crustacea Edward Lee 1935-12-28 1703 Contra Costa Western end of Las Trampas Ridge Comment
Read comments Jul 2 2011
  SD107167  Arctostaphylos tomentosa subsp. crustacea Walter Knight 1980-3-6 3719 Contra Costa Redwood Regional Park, East Ridge Trail Comment
Read comments Aug 10 2011
  UC1120128  Arctostaphylos tomentosa subsp. crustacea Beryl Schreiber 1938-9-18 2549 Contra Costa 0.5 mi ssw Round Top; Concord Quadrangle 335 Comment
  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
  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
  UCD51867  Arctostaphylos tomentosa subsp. crustacea Edward Lee 1935-12-28 1702 Contra Costa Western end of Las Tampas Ridge, Contra Costa County. 426 Comment
Read comments Jul 2 2011
  UCR58384  Arctostaphylos tomentosa subsp. crustacea Walter Knight 1980-3-6 s.n. Contra Costa Redwood Regional Park; East Ridge Trail 396 Comment
Read comments Aug 10 2011
  RSA0029783  Arctostaphylos tomentosa subsp. crustacea Barbara Ertter, L. Vorobik 2000-1-9 16889 Contra Costa Las Trampas Regional Wilderness in East Bay Hills west of Danville. Comment
  UC2046014  Arctostaphylos viscida subsp. mariposa Stephen W. Edwards July, 2012 s.n. Contra Costa Pleasant Hill, along Taylor Blvd. Comment
  JEPS25152  Argyranthemum foeniculaceum G. Thomas Robbins with John Weiler 1959-5-23 4022 Contra Costa nw extension Brooks Island (on breakwater (partly natural, partly man-made)); San Francisco Bay, Richmond Comment
  JEPS32461  Aristolochia californica Mary Ann Linsford 1931-3-15 Contra Costa San Pablo Creek near Orinda Comment
  SJSU1772  Aristolochia californica J. B. Youngberg 1956-4-28 357 Contra Costa 6 mi E of Orinda 198 Comment
  CAS-BOT-BC400401  Aristolochia californica Wm. M. Canby 1894-3-1 s.n. Contra Costa Walnut Creek Comment
  CAS-BOT-BC400402  Aristolochia californica H. M. Hall 1899-4-23 s.n. Contra Costa Lauterwasser Creek Comment
  SEINET12097752  Aristolochia californica M. T. Doutt 1931-1 253 Contra Costa San Pablo Creek near Orinda Comment
  UC29618  Arnica discoidea F. P. McLean 1875-3-1 Contra Costa Mt. Diablo Comment
  UC691351  Arnica discoidea Mary L. Bowerman 1931-5-16 849 Contra Costa summit Meridian Peak; Mount Diablo Comment
  JEPS111670  Artemisia californica D. G. Kelch 2003-3-21 03 .48 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  UC2042495  Artemisia californica Barbara Keller and J. Ruck 2011-6-23 Contra Costa Mt. Diablo State Park, North Gate Rd. Comment
  POM318719  Artemisia douglasiana Patricia Wilder 1961-8-27 1065 Contra Costa Walnut Creek, near Calif. Hwy 24. 24 Stanley Court. 42 Comment
  RSA94411  Artemisia douglasiana Joseph A. Ewan 1933-10-15 8033 Contra Costa Grassy slope above Indian Ceremonial Spr., Mt. Diablo Comment
  UC1051127  Arum italicum N. Floy Bracelin 1944-9-24 2585 Contra Costa the Garden of Anson and Anita Blake Berkeley Comment
  JEPS5091  Asclepias californica Mary L. Bowerman 1935-5-1 2944 Contra Costa 4.4 mi from entrance (West road); Mount Diablo 381 Comment
  UC1123499  Asclepias californica C. M. Belshaw 1936-5-15 2131 Contra Costa 1/2 mi wsw Stewartsville; Mt. Diablo Quadrangle Comment
  CDA28791  Asclepias cordifolia D. G. Kelch, Troy MacGregor 2009-5-24 9 .302 Contra Costa Carquinez Strait; Carquinez Loop Trail S of Ozol, S-SW of Martinez, nr Wolcott Ln . Comment
  UCSB22010  Asclepias fascicularis Olson, Glen 1968-7-5 Contra Costa 0.1 mile off the end of Broadmore Court, 0.2 mile north of its junction with St. Mary's Rd. Comment
  RSA721531  Aster chilensis Mary L. Bowerman 1993-10-19 s.n. Contra Costa Mount Diablo. Marsh Creek near Russelman Road. Comment
  CAS-BOT-BC180572  Astragalus asymmetricus Mrs. E. C. Wright 1917-6-1 s.n. Contra Costa Mt. Diablo Comment
  CDA18030  Astragalus asymmetricus R. M. Case 1999-7-6 PDR 004803 Contra Costa Along Kikker Pass Rd, Pittsburg. 0 Comment
  UC659396  Astragalus gambelianus Lincoln Constance, Carl W. Sharsmith with Howard S. Reed 1940-4-27 2572 Contra Costa base of Mount Diablo , Pine Canyon (Pine Canyon) 304 Comment
  UC692524  Astragalus gambelianus Mary L. Bowerman 1932-4-9 1328 Contra Costa small ridge e of south spur meridian (Inner Black Hills, Mount Diablo); Mount Diablo, Inner Black Hills Comment
  UC13431  Astragalus gambelianus W. L. Jepson May, 1891 Contra Costa Comment
  UC10231  Athysanus pusillus T. S. Brandegee Contra Costa Antioch 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
  CAS-BOT-BC16333  Athysanus unilateralis Alice Eastwood 1914-3-14 3766 Contra Costa Byron Springs. Comment
  JEPS99036  Atriplex Robert E. Preston & Eva Buxton 1994-8-4 676 Contra Costa E end of Briones Valley, W of Marsh Creek Reservoir. 60 Comment
  UC217196  Atriplex argentea var. mohavensis H. M. Hall 1919-11-14 10972 Contra Costa Byron Byron (where road turns from highway to Springs Hog Wallows) Comment
  LA204675  Atriplex coronata John Thomas Howell; 1930-9-28 5503 Contra Costa 5.4 miles from Byron on Marsh Creek Road Comment
  SEINET4133821  Atriplex fruticulosa Howard C. Stutz, G. L. Chu 1991-4-12 95463 Contra Costa 2 mi. S of Byron, E side of road in 'native' pasture.; 0 Comment
  RSA293441  Atriplex joaquinana Reino Alava 1958-6-6 2138 Contra Costa 3 miles south of Byron, between the highway south and the railroad track Comment
  JEPS111798  Atriplex lentiformis A. G. Murdock 2004-6-4 320 Contra Costa Pacheco Marsh On east end of diked marsh near road, only in highest point of old marsh (now dry ground) 5 Comment
  JEPS41046  Atriplex leucophylla Rimo Bacigalupi and L. R. Heckard 1965-5-11 9071 Contra Costa on strand at n end Brooks Island (in San Francisco Bay sw of Richmond); San Francisco Bay, sw of Richmond, n end Brooks Island Comment
  CDA2931  Atriplex semibaccata D. G. Kelch 2006-9-25 6 .477 Contra Costa Carquinez Strait; Marsh 1km. W of Pacheco Slough. Comment
  CHSC116649  Avena barbata Lowell Ahart; Josephine Guardino 2016-4-19 20786 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the sides ot the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  UCD56220  Avena barbata A. A. Beetle 1942-3-22 2929 Contra Costa Brooks Island in San Francisco Bay. Comment
  CHSC21645  Avena fatua Willis Ball 1975-3-2 469 Contra Costa Contral Loma Regional Park. In area #2. On s side of hill ca. 55 myds. ne of single restroom at sw end of lake. 39 Comment
  JEPS100028  Avena fatua S. O'Neil 2003-5-1 SEO 21 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
  RSA762309  Avena fatua William J. Ferlatte, L. M. Moe 1970-4-27 1225 Contra Costa San Francisco Bay, Red Rock Island. Comment
  UC606755  Avena fatua Edward Lee 1936-4-19 1996 Contra Costa Red Rock San Francisco Bay (island summit) Comment
  CAS-BOT-BC145879  Avena fatua Beecher Crampton 1956-5-14 3418 Contra Costa Cemetery, 0.5 mile northwest of Martinez, road to Crocket. Comment
  UC1619933  Azolla filiculoides Barbara Ertter, Brad Olson 1991-9-28 10849 Contra Costa S end San Pablo Reservoir between Orinda and El Sobrante 97 Comment
  POM301043  Baccharis douglasii Mary L. Bowerman 1942-10-4 3852 Contra Costa Russelman Park Road 290 Comment
  JEPS111735  Baccharis glutinosa D. G. Kelch 2004-9-2 04 .338 Contra Costa Pacheco Marsh Marsh east of Martinez and I-680 and east of lone tree Marsh. 5 Comment
  UC1948938  Baccharis pilularis William J. Ferlatte, L. Maynard Moe 1970-4-27 1239 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC30399  Baccharis salicifolia subsp. salicifolia H. N. Bolander 1866-4-1 6162 Contra Costa near Mount Diablo Comment
  UC651295  Baccharis salicifolia subsp. salicifolia Ira L. Wiggins 1930-4-18 4600 Contra Costa Levee Parks, near ferry Jersey Island Comment
  UC36778  Balsamorhiza deltoidea J. Burtt Davy 1895-4-7 910 Contra Costa Antioch Comment
  UC2028394  Balsamorhiza deltoidea Barbara Ertter with Richard K. Brummitt 1998-5-13 16139 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, south leg of Loughler Loop Trail just west of pass over central ridge, NW-facing slope Comment
  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
  UCD35137  Bellardia trixago Beecher Crampton 1949-6-5 468 Contra Costa near Muir. Comment
  SD30222  Bellardia trixago P. O. Schallert 1943-4-27 Contra Costa 1 mile east of Martinez, in meadow Comment
  UCD122096  Bellardia trixago Ira J. Condit 1968-4-1 s.n. Contra Costa Walnut Creek. 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
  UCD158710  Beta vulgaris subsp. maritima James A. Neilson Jr. 1972-11-2 3613 a Contra Costa Walnut Creek drainage. Elevation estimated in Google Earth by label maker. 1 Comment
  CAS-BOT-BC102085  Bidens frondosa Walter Knight 1978-8-27 3153 Contra Costa Contra Loma Regional Park 30 Comment
  UC912220  Bidens frondosa Herbert L. Mason 1929-9-21 5446 Contra Costa 2.6 mi ne of Byron (Borden Highway); Borden Highway Comment
  CAS-BOT-BC102032  Bidens laevis Walter Knight; Irja Knight; J. T. Howell; E. McClintock; et al. 1978-9-5 3242 Contra Costa Browns Island. Yucca Landing Comment
  JEPS68966  Blennosperma nanum Edward Lee 1935-3-10 1299 Contra Costa Nortonville South watershed of Kirker Creek Comment
  JEPS25358  Blennosperma nanum var. nanum Rimo Bacigalupi with Paul C. Hutchinson and John Weiler 1959-3-19 6969 Contra Costa 1mi se, e of Byron Road Byron 6 Comment
  UC1540459  Blennosperma nanum var. nanum Annetta Carter 1937-3-28 1225 Contra Costa 15 mi e, along Marsh Creek Road Concord 152 Comment
  UC682126  Blennosperma nanum var. nanum G. L. Stebbins Jr. 1942-2-8 3220 Contra Costa 1 mi e of, on road to Mt. Diablo Danville Comment
  CAS-BOT-BC100338  Blepharizonia plumosa R. F. Hoover 1937-9-2 2708 Contra Costa Walnut Creek Comment
  JEPS18818  Blepharizonia plumosa R. F. Hoover 1937-9-2 2708 Contra Costa Walnut Creek Comment
  UC2029009  Blepharizonia plumosa Barbara Ertter, Dan Norris 1999-11-14 16855 Contra Costa Black Diamond Mines Regional Preserve, east end of Ridge Trail above Stewartville Trail. Comment
  LA204391  Boechera breweri E. W. Hicks; 1917-3-24 111 Contra Costa Mt. Diablo 1067.0 Comment
  CAS-BOT-BC27013  Boechera breweri subsp. breweri William Henry Brewer 1862-5-14 1086 Contra Costa Summit of Monte Diablo Comment
  UCD102381  Boechera breweri subsp. shastaensis Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 900 Comment
  CAS-BOT-BC31334  Bolboschoenus maritimus Walter Knight; Joanne Dean 1978-8-14 3161 Contra Costa Browns Island. Comment
  JEPS111893  Bolboschoenus maritimus D. G. Kelch 2004-6-6 04 .230 Contra Costa Martinez - Train Station In large fill area North of Frontage Road. In marsh East of Martinez and I-680 2 Comment
  UC32474  Bowlesia incana Chesnut and Drew 1889-4-17 Contra Costa Clayton Comment
  UC2028574  Bowlesia incana Barbara Ertter with Stu Garrett 1997-3-29 15538 Contra Costa West side Mount Diablo, north end of Mothers Trail. Comment
  PASA1924  Bowlesia lobata Annetta Carter 1929-3-31 Contra Costa Hills north on Mt. Diablo. Near Clayton Comment
  JEPS53247  Brassica nigra W. L. Jepson 1921-5-22 9199 Contra Costa Mount Diablo 1/2 way up roadway grade to summit Mount Diablo 1173 Comment
  JEPS111852  Brassica rapa A. G. Murdock 2004-3-19 217 Contra Costa Luzon Sycamore Ave. just east of Rodeo/Hercules where train crosses Highway 4 (Luzon). 60 Comment
  UC768749  Brodiaea terrestris subsp. terrestris R. F. Hoover 1937-5-14 2122 Contra Costa Byron Hot Springs Comment
  CAS-BOT-BC149351  Bromus berteroanus Edward Lee 1936-4-19 1970 Contra Costa San Francisco Bay. Red Rock. Northeast corner of the island. Comment
  UC2032822  Bromus carinatus Doran, Andrew Scott 2012-3-20 692 Contra Costa North end of Brooks Island along ridge overlooking artificial spit, southwest of caretakers residence. Comment
  UCR152271  Bromus carinatus Beecher Crampton 1960-3-29 5481 Contra Costa city of El Cerrito, corner of Carlson Blvd. and Lassen St. 5 Comment
  SEINET10520207  Bromus carinatus Alan A. Beetle 1942-3-22 Beetle 2931 Contra Costa Brooks Island, San Francisco Bay, near Richmond. Comment
  JEPS25124  Bromus carinatus var. carinatus G. Thomas Robbins 1959-4-18 3991 Contra Costa near and n of Point Richmond (w base of Potrero Hills, along Western Drive); Richmond, Potrero Hills, Western Drive 4 Comment
  SEINET191354 Image available Bromus carinatus var. carinatus A. A. Beetle 1942-3-22 2931 Contra Costa Brooks Island, San Francisco Bay near Richmond. Comment
  UC697133  Bromus carinatus var. carinatus Mary L. Bowerman 1933-5-2 1963 Contra Costa below Pioneer Camp (Mount Diablo); Mount Diablo 762 Comment
  UCD36918  Bromus carinatus var. marginatus Beecher Crampton 1956-5-14 3393 Contra Costa 7 miles southwest of city of Antioch, just east of old mining town of Nortonville. Comment
  UC2028404  Bromus diandrus Barbara Ertter with Christopher Baysdorfer 1998-5-10 16113 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, along Ohlone Trail Comment
  CAS-BOT-BC156065  Bromus diandrus Mary L. Bowerman 1935-5-1 2935 Contra Costa Mount Diablo. North Road 2 miles from entracne. 182 Comment
  CAS-BOT-BC155470  Bromus hordeaceus Alice Eastwood 1921-4-18 10263 Contra Costa Antioch. Comment
  UCD38558  Bromus hordeaceus Beecher Crampton 1956-5-14 3417 Contra Costa 0.5 mile northwest of Martinez. Comment
  UCD58642  Bromus hordeaceus Beecher Crampton 1956-5-14 3379 Contra Costa Head of Horse Valley. 5 miles south of Antioch. Comment
  UC691133  Bromus laevipes Mary L. Bowerman 1933-6-20 2324 Contra Costa Mount Diablo, Median Ridge in Donner Canyon Donner Canyon; Mount Diablo, Median Ridge, Donner Canyon 304 Comment
  UCD58906  Bromus laevipes P. B. Kennedy Date Unknown s.n. Contra Costa Pinehurst. Comment
  UCD36921  Bromus madritensis Beecher Crampton 1956-5-14 3401 Contra Costa Mount Diablo, south of Windy Point. 640 Comment
  UCD58961  Bromus madritensis Beecher Crampton 1956-5-14 3401 Contra Costa Southeast of Mt. Diablo. 640 Comment
  CAS-BOT-BC162355  Bromus madritensis Mary L. Bowerman 1935-5-3 2961 Contra Costa Sloan Road. 487 Comment
  UC692345  Bromus madritensis subsp. rubens Mary L. Bowerman 1933-3-18 1751 Contra Costa Mount Diablo, Meridian Peak, (a little east of the meridian) Meridian Peak; Mount Diablo, Meridian Peak 548 Comment
  CDA29488  Bromus pseudolaevipes D. G. Kelch, Troy MacGregor 2009-5-1 9 .276 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  UC677567  Bromus racemosus P. F. Knowles B 72 Contra Costa 1 mi w of Rodeo Comment
  CAS-BOT-BC161953  Bromus rubens Mary L. Bowerman 1931-5-7 810 Contra Costa Mount Diablo. North Peak. Comment
  UC1103346  Bromus trinii J. P. Tracy 1900-5-24 613 Contra Costa San Francisco Bay Region, Point Richmond Point Richmond; San Francisco Bay Region, Point Richmond 3 Comment
  UC691132  Bromus trinii Mary L. Bowerman 1932-5-6 1428 c Contra Costa Mount Diablo, Mitchell Canyon Mitchell Canyon; Mount Diablo, Mitchell Canyon 251 Comment
  UC1980316  Calamintha sylvatica subsp. ascendens Barbara Ertter with David Gowen 2011-10-6 20918 Contra Costa Tilden Regional Park in hills east of Berkeley; lower Vollmer Peak Trail southeast of Big Spring picnic area Comment
  CAS-BOT-BC438369  Calandrinia ciliata Alice Eastwood 1914-3-14 3809 Contra Costa Byron Springs Comment
  RSA721205  Callitriche heterophylla var. bolanderi Barbara Ertter, Mary L. Bowerman 1995-5-7 14034 Contra Costa Three-Springs Trail on NE side of Mt. diablo SE of Clayton; pond W side of road in grassy flat. Comment
  JEPS65180  Callitriche longipedunculata L. R. Heckard 1971-4-15 2487 Contra Costa In field at intersection of Holey Road, south of Byron Comment
  UC768643  Calochortus albus R. F. Hoover 1939-4-26 4067 Contra Costa Head of Markley Canyon (w branch) Markley Canyon Comment
  UC2029142  Calochortus argillosus Barbara Ertter with Alan Prather 2003-6-7 18193 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, Valley View Trail at NE corner of park. Comment
  JEPS112509  Calochortus luteus A. G. Murdock 2003-6-2 77 Contra Costa Crockett - 5th St. Prairie 85 Comment
  CAS-BOT-BC132491  Calochortus pulchellus Mrs. T. A. McGlynn 1925-6-14 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC132502  Calochortus pulchellus L. R. Abrams 1921-5-25 8053 Contra Costa 4 1/2 mi from summit, Mt. Diablo Comment
  SBBG57749  Calochortus pulchellus M. N. Ackley -Apr-1930 641 Contra Costa Mt Diablo Comment
  UC1601662  Calochortus umbellatus W. H. Brewer 1862-5-1 1035 Contra Costa s of Camp 69; Walnut Creek Comment
  POM195651  Calycadenia hispida H. M. Hall 1916-8-16 10274 Contra Costa Horse Valley, 9 km south of Antioch Comment
  UC197535  Calycadenia multiglandulosa H. M. Hall 1916-8-16 10274 Contra Costa 9 km s of Antioch; Horse Valley 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
  UC2029105  Calycadenia truncata Barbara Ertter 2000-7-29 17441 Contra Costa Donner Basin on north side of Mount Diablo, ca halfway up Middle Trail. Comment
  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-BC224748  Calystegia malacophylla subsp. pedicellata Mary L. Bowerman 1935-6-8 3126 Contra Costa Mount Diablo. Summit 1170 Comment
  UC1123589  Calystegia subacaulis C. M. Belshaw 1936-5-9 2076 Contra Costa 2.25 mi e Clayton; Mt. Diablo quad 381 Comment
  RSA0059779  Calystegia subacaulis Thekla Mohr 1917-07 3164 Contra Costa Mt. Diablo. Comment
  JEPS100014  Calystegia subacaulis subsp. subacaulis G. Smick 2003-5-6 GAS 170 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA181415  Camissonia campestris subsp. campestris James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  UC635291  Camissonia campestris subsp. campestris H. L. Mason 1931-4-5 5820 Contra Costa Antioch sandhills Comment
  POM257264  Camissonia campestris subsp. campestris H. L. Mason 1929-3-31 5153 Contra Costa Along San Joaquin River, Antioch. Comment
  POM31985  Camissonia contorta C. F. Baker 1903-4-25 2824 Contra Costa Antioch. Comment
  JEPS107069  Camissonia intermedia Barbara Ertter, Chris Thayer 1995-4-25 13989 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Devil's Slide area of Sycamore Canyon, roadside through chaparral zone. 304 Comment
  RSA186718  Camissonia intermedia D. E. Breedlove 1963-5-2 4698 Contra Costa At entrance to Mt. Diablo State Park 4 miles east of Danville Comment
  RSA195470  Camissonia micrantha Peter H. Raven 1963-3-29 18141 Contra Costa Along Sacramento River just above Antioch Comment
  UC1784899  Camissoniopsis hirtella Barbara Ertter with Thomas J. Delendick 1996-5-2 14609 Contra Costa Mount Diablo, lower summit parking lot 1127 Comment
  UC635400  Camissoniopsis intermedia H. L. Mason 1928-4-29 4436 Contra Costa Sycamore Canyon Mount Diablo (s slope of mt.) Comment
  UC2070451  Camissoniopsis micrantha Barbara Ertter with Dan Norris 2001-4-8 17600 Contra Costa Lime Ridge Open Space east of Walnut Creek. Comment
  CAS-BOT-BC266435  Campanula exigua R. Bacigalupi 1946-5-30 2781 Contra Costa Juniper Camp, W shoulder of Mount Diablo Comment
  SEINET10461960  Campanula exigua Rattan 1886-6-14 RATTAN s.n. Contra Costa Summit of Mount Diablo Comment
  UC1055904  Campanula garganica N. Floy Bracelin 1941-6-1 1347 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS102903  Campanula griffinii Barbara Ertter with M. L. Bowerman, L. Schultheis & K. Hintsa 1995-10-22 14535 Contra Costa road junction of Three Springs trail on NE side of mountain Mount Diablo 365 Comment
  UC1051246  Campanula isophylla N. Floy Bracelin 1942-9-9 2279 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1051244  Campanula rotundifolia N. Floy Bracelin 1943-7-11 2546 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS83131  Capsella bursa-pastoris R. P. Allen 1935-3-15 113 Contra Costa Pittsburg Comment
  CAS-BOT-BC37391  Cardamine californica Alice Eastwood 1923-5-4 s.n. Contra Costa Mount Diablo. Comment
  CAS-BOT-BC37395  Cardamine californica Robert Francis Hoover 1938-2-21 2754 Contra Costa Point Richmond. Comment
  UC1126899  Cardamine californica R. C. Wilson 1935-3-19 142 Contra Costa 1 mi se Wall Pt.; Mt. Diablo Quad. 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
  UC1795656  Cardamine californica var. californica Barbara Ertter, Gary Schoolcraft 1996-4-7 14580 Contra Costa Molate Beach Park on San Francisco Bay north of San Rafael Bridge; coastal prairie and brushland on bluff. Comment
  UC10419  Cardamine californica var. integrifolia W. H. Brewer 1862-5-1 1039 Contra Costa Walnut Creek Comment
  RSA21594  Cardamine californica var. integrifolia C. B. Wolf 1937-3-28 8319 Contra Costa 2 miles south of Pinole on San Pablo road 30 Comment
  UC2070647  Cardamine flexuosa Barbara Ertter with David Gowen 2006-4-14 18668 Contra Costa Lime Ridge Open Space (City of Concord) at NW foot of Mount Diablo, SE of Ygnacio Valley Road. Comment
  UC691066  Cardamine oligosperma Mary L. Bowerman 1932-3-6 1100 Contra Costa e fork Sycamore Canyon (near trail, Mount Diablo); Mount Diablo, e fork Sycamore Canyon Comment
  UC691070  Cardamine oligosperma Mary L. Bowerman 1931-3-29 618 Contra Costa East Cave Point Ridge , East Cave Point Ridge (Mount Diablo) Comment
  POM300574  Cardamine oligosperma Mary L. Bowerman 1932-3-6 1100 Contra Costa Sycamore Canyon, east fork: Near trail. Comment
  CDA19196  Cardaria draba R. Fonseca 2001-5-16 PDR P 088201 Contra Costa Suisun Bay Region; Franklin Canyon Rd., Martinez. 115 Comment
  CAS-BOT-BC281739  Carduus pycnocephalus Mary L. Bowerman 1935-5-25 3079 Contra Costa Mount Diablo. North Rd 2.4 miles from entrance (by shepherd's camp) 304 Comment
  JEPS59104  Carduus pycnocephalus subsp. pycnocephalus W. L. Jepson 1943-5-27 20840 Contra Costa near Black Hills; Mt. Diablo Comment
  UC517456  Carduus pycnocephalus subsp. pycnocephalus J. Thomas Howell 1933-5-14 11246 Contra Costa hills e of St. Mary's College Comment
  CDA15244  Carduus tenuiflorus G. F. Hrusa, D. Crowe 1998-5-8 14375 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Comment
  RSA153458  Carex barbarae G. Thomas Robbins 1959-5-16 4008 Contra Costa Just north of Pt. Orient, Potrero Hills, overlooking San Francisco Bay, Richmond. Comment
  UC691964  Carex densa Mary L. Bowerman 1935-5-16 3001 Contra Costa Russelman Park road at Gregory Ranch junction Mount Diablo 289 Comment
  CDA31160  Carex globosa D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .227 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  UC2028524  Carex globosa Barbara Ertter 1997-11-1 15880 Contra Costa South side Mount Diablo, near Balancing Rock on Knobcone Point Road. Comment
  CAS-BOT-BC119740  Carex nebrascensis Walter Knight 1979-6-15 3377 Contra Costa Crooked Slough. Browns Island. Comment
  UC691961  Carex pellita Mary L. Bowerman 1935-5-16 3000 Contra Costa Russelman Park Road at Gregory Ranch junction; Mount Diablo 289 Comment
  JEPS25158  Carex praegracilis G. Thomas Robbins with John Weiler 1959-5-23 4029 Contra Costa at the nw edge of Brooks Island San Francisco Bay, Richmond, Brooks Island Comment
  CAS-BOT-BC117548  Carex serratodens Lewis Samuel Rose 1935-5-16 35163 Contra Costa Mt. Diablo. Comment
  JEPS105723  Carex serratodens David Gowen 2004-9-13 159 Contra Costa Mt. Diablo State Park. Maple Spring, which is on the North Gate Rd., approx. 1920' elev. 585 Comment
  JEPS105722  Carex serratodens David Gowen 2004-9-13 160 Contra Costa Mt. Diablo State Park. Johnny Walker Spring, which is ca. .2 mile above the junction of Angel Kerley Rd. (fire trail) and North Gate Rd., approx. 2200' elev. Comment
  UC2028450  Carex serratodens Barbara Ertter with Chris Thayer 1996-10-25 15388 Contra Costa West side of Mount Diablo, South Gate Road just south of junction at Mountain House Creek crossing Comment
  UC7991  Carex subbracteata W. H. Brewer 1012 Contra Costa Walnut Creek 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
  UC1096  Carex tumulicola Jos. Burtt Davy 1897-4-17 Contra Costa Point Isabel 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
  JEPS74804  Castilleja attenuata L. R. Heckard, T. I. Chuang and R. Bacigalupi 1975-5-7 4012 Contra Costa ca 0.5 mi e Pinole (just e of Interstate 80, along main route of Santa Fe Railroad) Comment
  UC1952816  Castilleja densiflora Barbara Ertter 2010-5-12 19831 Contra Costa Miller Knox Regional Shoreline at south edge of Point Richmond; along West Ridge Trail Comment
  CHSC21620  Castilleja exserta Willis Ball 1974-4-21 425 Contra Costa In area #7. Immediately to the w side of Contra Loma Blvd. ca. 400 yds s of the main boat ramp. Contra Loma Regional Park. 45 Comment
  RSA0069378  Castilleja exserta Katie Gallagher, Nick Jensen 2014-4-26 211 Contra Costa Las Trampas Regional Wilderness. 487 Comment
  JEPS100149  Castilleja exserta subsp. exserta G. Smick 2003-3-25 GAS 78 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS15212  Castilleja exserta subsp. exserta C. M. Belshaw 1936-5-11 2096 Contra Costa 5.25 mi e Danville; Mt. Diablo 289 Comment
  JEPS74806  Castilleja exserta subsp. exserta L. R. Heckard, T. I. Chuang and R. Bacigalupi 1975-5-7 4014 Contra Costa ca 0.5 mi e Pinole (just of of Interstate Hwy 80, along main route of Santa Fe Railroad) Comment
  UC27244  Castilleja exserta subsp. exserta R. C. Marsh 1900-4-5 Contra Costa Oakley; Mount Diablo Region Comment
  JEPS99573  Castilleja rubicundula subsp. lithospermoides Mary L. Bowerman 1978-5-24 Contra Costa Mount Diablo. Donner Canyon, west side trail of Hetherington Loop 2 Comment
  UC691618  Castilleja rubicundula subsp. lithospermoides Mary L. Bowerman 1935-5-22 3035 Contra Costa n end Eagle Point ridge; Mount Diablo 289 Comment
  JEPS121057  Castilleja wightii D. G. Kelch 1999-6-23 99001 B Contra Costa Vaca Canyon along Alhambra Valley Road about 1.5 mile East of Pig Sale Comment
  UC191001  Castilleja wightii Katharine Brandegee Contra Costa Rodeo Comment
  CAS-BOT-BC41036  Caulanthus flavescens Mary L. Bowerman 1935-4-12 2823 Contra Costa Mount Diablo. West road 2 miles from entrance, just north of the road. Comment
  CAS-BOT-BC41037  Caulanthus flavescens Mary L. Bowerman 1935-4-22 2879 Contra Costa Mount Diablo. North Road 2 miles from North Gate. 213 Comment
  CDA24865  Caulanthus flavescens Jim Jokerst 1989-3-31 3078 Contra Costa East of creek in Brushy Creek Canyon. 0 Comment
  CAS-BOT-BC40510  Caulanthus lasiophyllus Mary L. Bowerman 1933-4-26 1924 Contra Costa Mount Diablo. North Peak ridge east-southeast of the peak, south face. 609 Comment
  CAS-BOT-BC40512  Caulanthus lasiophyllus Bolander 1863-1-1 s.n. Contra Costa San Pablo Landing. Comment
  UC1070932  Ceanothus cuneatus var. cuneatus R. W. Lundh 1933-3-29 222 Contra Costa 1 mi w Alamo; Concord quad Comment
  UC1070938  Ceanothus cuneatus var. cuneatus H. S. Yates 1936-3-14 5363 Contra Costa 2.5 mi sw Round Valley; Mt. Diablo quad 457 Comment
  CAS-BOT-BC49716  Ceanothus cuneatus var. rigidus Brandegee 93 Contra Costa Nortonville Comment
  UC692588  Ceanothus oliganthus var. sorediatus Mary L. Bowerman 1935-5-30 3084 Contra Costa By Donner Canyon stream 161 Comment
  UC762255  Ceanothus oliganthus var. sorediatus R. F. Hoover 1941-4-12 4843 Contra Costa w branch of San Pablo Creek 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
  CDA29161  Centaurea calcitrapa Deviney 2009-6-1 s.n. Contra Costa Martinez. McEwen Road. 0 Comment
  CAS-BOT-BC277052  Centaurea melitensis Alice Eastwood 1921-4-11 10239 Contra Costa Antioch Comment
  CAS-BOT-BC284464  Centaurea solstitialis Walter Knight; Wayne Roderick; Steve Edwards; Bob Doyle 1978-9-19 3249 Contra Costa Browns Island, Alder Point Comment
  JEPS78619  Centaurium muehlenbergii Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3288 Contra Costa Browns Island Comment
  UC702537  Centromadia fitchii L. S. Rose 1941-10-13 41464 Contra Costa 1 mi e Walnut Creek 50 Comment
  CAS-BOT-BC288543  Centromadia fitchii L. S. Rose 1941-10-13 41464 Contra Costa 1 mile E of Walnut Creek 50 Comment
  UCD36033  Centromadia fitchii Beecher Crampton 1949-7-15 485 Contra Costa below original site of Judsonville, Lee Higgins Empire Ranch, head of Lone Tree Valley. 114 Comment
  JEPS95222  Centromadia parryi subsp. congdonii R. E. Preston 1998-10-6 1173 Contra Costa E side of Camino Tassajara, ca. 1 mi S of Highland Road 170 Comment
  UC1777686  Centromadia parryi subsp. congdonii R. E. Preston 1998-10-25 1198 Contra Costa junction of Sycamore Valley Rd and Camino Tassajara Danville 129 Comment
  UCD130137  Centromadia parryi subsp. congdonii Robert E. Preston 1998-10-6 1172 Contra Costa on west side of Camino Tassajara, 0.5 to 0.9 miles south of Highland Road. 176 Comment
  CAS-BOT-BC288878  Centromadia parryi subsp. congdonii David D. Keck 1933-11-2 2610 Contra Costa San Ramon, Cow Creek Canyon Rd, 0.5 mile from turnoff Comment
  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-BC279199  Centromadia pungens subsp. pungens A. D. E. Elmer 1903-5-1 4392 Contra Costa Walnut Creek Comment
  UC1594163  Cephalanthus occidentalis var. californicus Jerry Powell 1991-6-11 1607 Contra Costa Antioch National Wildlife Refuge Comment
  JEPS111783  Cerastium glomeratum D. G. Kelch 2003-3-21 03 .72 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  JEPS51352  Cerastium glomeratum W. L. Jepson 1922-4-16 9600 Contra Costa San Pablo Comment
  UC1948960  Cerastium glomeratum William J. Ferlatte, L. Maynard Moe 1970-4-27 1233 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC691102  Cercocarpus betuloides var. betuloides Mary L. Bowerman 1936-9-9 3541 Contra Costa Rock City Ridge = Fossil Ridge, w of 1478 (below road) Fossil Ridge; Mount Diablo, , Rock City Ridge Comment
  CDA23076  Chamaesyce maculata D. G. Kelch, D. A. Weinstein 2008-5-5 8 .093 Contra Costa Carquinez Strait; Richmond. W Chevy s Hill. N parking lot of Hilltop Mall. Comment
  RSA0028851  Chamaesyce maculata Barbara Ertter, Rich Rabeler, Tony Morosco 1997-6-10 15666 Contra Costa Miller Knox Regional Shoreline south of Richmond, parking area for Richmond Ramblers. Comment
  CDA4775  Chamaesyce serpens D. G. Kelch, A. G. Murdock 2005-6-24 5 .38 Contra Costa Carquinez Strait Region; Crockett - Crolona Heights. 6th Street at Lillian Street, Crockett, CA. Comment
  UC2062615  Chamaesyce serpyllifolia var. serpyllifolia Barbara Ertter 2002-11-11 18088 Contra Costa Round Valley Regional Preserve east of Mount Diablo. Comment
  UC2036953  Chenopodium Mary L. Bowerman 1946-2-10 4083 Contra Costa Near C.C.C. Camp, Mount Diablo. Comment
  CDA15274  Chenopodium album G. F. Hrusa, D. Crowe, R. York 1998-7-17 14711 Contra Costa Sacramento Delta; E end of Dow Chemical property in Pittsburg. Comment
  CHSC23348  Chenopodium album Willis Ball 1975-6-1 532 Contra Costa Contra Loma Regional Park. In area #11. On n side of road ca. 200 yds e of main entrance to park. 60 Comment
  UC2012997  Chenopodium ambrosioides Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14925 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  UC630416  Chenopodium berlandieri Paule Guiget and Annetta Carter 1939-8-13 1453 Contra Costa Treat Ave. se Concord 53 Comment
  POM300604  Chenopodium berlandieri var. sinuatum Mary L. Bowerman 1932-8-27 1525 Contra Costa South Road below Rock City. Comment
  UC1199816  Chenopodium californicum Herbert L. Mason 1929-3-31 5158 Contra Costa Antioch Sacramento River Comment
  UC14076  Chenopodium californicum Chesnut and Drew 1889-4-18 Contra Costa Antioch; sand hills Comment
  UC691936  Chenopodium californicum Mary L. Bowerman 1935-3-16 2746 Contra Costa Arroyo del Cerro Mount Diablo (between the fork) 304 Comment
  CDA21590  Chenopodium multifidum D. G. Kelch, Mike Park 2008-9-1 8 .302 Contra Costa Carquinez Strait; Lonetree Point. Rodeo Shoreline Park. Rodeo. Comment
  SJSU9368  Chloropyron molle subsp. molle W. Savage 1979-6-15 1267 Contra Costa 100' W of Harris Harbor Channel, 0.25 mi N of Harris Harbor Comment
  CAS-BOT-BC252680  Chorizanthe membranacea Mary L. Bowerman 1938-5-28 3636 Contra Costa North Road 4.7 miles from North Gate, Mount Diablo 411 Comment
  UC692212  Chorizanthe membranacea Mary L. Bowerman 1931-5-7 803 Contra Costa Mount Diablo just below crest s side North Peak Ridge; Mount Diablo, North Peak ridge Comment
  UC692213  Chorizanthe membranacea Mary L. Bowerman 1938-5-28 3636 Contra Costa North Road 4.7 mi from North Gate (Mount Diablo); Mount Diablo 411 Comment
  UC52583  Chorizanthe membranacea State Survey 1862-5-17 1104 Contra Costa n Mt. Diablo; n of Mt. Diablo Comment
  UC52588  Chorizanthe membranacea W. H. Brewer 1862-5-17 1104 Contra Costa canyon n Monte Diablo; canyon n of Monte Diablo (Mount Diablo?) Comment
  SD8106  Chorizanthe uniaristata Kate Curran June 1884 Contra Costa Antioch Comment
  UC188732  Chorizanthe uniaristata M. K. Curran 1884-1 Contra Costa near Mount Diablo; near Mount Diablo Comment
  UC85937  Chorizanthe uniaristata Mrs. K. Brandegee Contra Costa Mount Diablo Comment
  CAS-BOT-BC30113  Chrysolepis chrysophylla var. minor W. B. Stephens 1919-11-22 s.n. Contra Costa Moraga ridge Comment
  JEPS46616  Chrysolepis chrysophylla var. minor Dr. H. M. Wheeler 1943-8-15 Contra Costa Moraga Ridge Comment
  HSC8062  Chrysolepis sempervirens D. A. Shally 1963-5-29 1 Contra Costa Canyon, 1.5 mi. NE of Canyon Store Comment
  UCD127262  Cicuta maculata var. bolanderi Walter Knight; Irja Knight et al. 1978-9-5 3244 Contra Costa Browns Island. Comment
  UC691378  Cirsium cymosum var. cymosum Mary L. Bowerman 1935-5-22 3041 a Contra Costa Eagle Point Ridge, canyon at n e of which heads into saddle w of Twin Peaks Mount Diablo 304 Comment
  RSA770014  Cirsium occidentale David J. Keil, Barbara Ertter, et al. 2000-6-18 28815 A Contra Costa Mount Diablo State Park. Lower part of Jumper Trail above Laurel Dell picnic area 915 Comment
  CAS-BOT-BC288046  Cirsium occidentale var. venustum L. R. Abrams 1921-5-25 8018 Contra Costa Mt. Diablo Comment
  UC1607628  Cirsium occidentale var. venustum Barbara Ertter, Lynne Hosley 1992-8-29 11265 Contra Costa E of Mount Diablo (Prairie Falcon trail); Morgan Territory Regional Preserve Comment
  UC691382  Cirsium occidentale var. venustum Mary L. Bowerman 1930-6-18 348 Contra Costa Dan Cook Canyon Mount Diablo, Dan Cook (Rock City) Canyon Comment
  UC691383  Cirsium occidentale var. venustum Mary L. Bowerman 1931-5-23 899 Contra Costa Oyster Point Mount Diablo, Oyster Point Comment
  UC691387  Cirsium vulgare Mary L. Bowerman 1933-9-15 2442 Contra Costa s face of Meridian Peak; Mount Diablo, Hunt Spring 762 Comment
  UC1782176  Citrullus colocynthis var. lanatus Rudolf Schmid 2003-9-13 2003 -15 Contra Costa vacant lot, 24 Edwin Dr., Kensington 169 Comment
  JEPS78818  Clarkia affinis Edward Lee 1936-5-24 2158 Contra Costa about 2 mi se Curry Canyon; Morgan Territory, Marsh Creek Comment
  UC1795728  Clarkia affinis Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14224 Contra Costa Mt. Diablo southeast of Walnut Creek, north-facing slope north of Curry Point, grassy semishade at edge of oak woodland. 518 Comment
  CAS-BOT-BC162565  Clarkia affinis John Thomas Howell 1931-5-12 6483 Contra Costa North side of Mt. 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
  UCD36032  Clarkia amoena Beecher Crampton 1949-7-3 475 Contra Costa San Pablo Creek Valley, east of San Pablo Ridge, along road to Orinda. 76 Comment
  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
  UC169380  Clarkia biloba Katharine Brandegee June 1905 Contra Costa Port Costa 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
  CAS-BOT-BC163605  Clarkia biloba subsp. biloba A. D. E. Elmer 1903-5-1 4319 Contra Costa Mount Diablo Comment
  UC2042500  Clarkia concinna Holly Forbes and Barbara Keller 2009-5-29 Contra Costa Mt. Diablo State Park, along Deer Creek Rd. about 0.1 mi. from the entrance of Juniper campground. Comment
  UC2028989  Clarkia concinna subsp. concinna Barbara Ertter 2000-5-14 17005 Contra Costa Donner Canyon on north side of Mount Diablo, serpentinitic sites in general area of junction of Donner Canyon, Cardinet Oaks, and Meridian Ridge roads, edged by Arctostaphylos glauca et al. Comment
  POM262916  Clarkia purpurea subsp. purpurea Herbert McLean Evans s.n. Contra Costa Mount Diablo Comment
  CAS-BOT-BC172559  Clarkia purpurea subsp. purpurea Mary L. Bowerman 1933-6-14 2270 Contra Costa Curry-Cave Canyon, ridge between two main forks, Mount Diablo Comment
  CAS-BOT-BC163668  Clarkia purpurea subsp. quadrivulnera Mary L. Bowerman 1931-5-13 844 Contra Costa Mount Diablo. Pine Canyon floor one mile above the Sulphur Spring Comment
  UC1279898  Clarkia rubicunda Peter H. Raven 1957-6-20 10950 Contra Costa e end Tilden Regional Park (hillside at Inspiration Point) Comment
  UC1377638  Clarkia rubicunda W. J. Dress 1951-7-3 3466 Contra Costa a few mi s Moraga 152 Comment
Read comments Apr 12 2009
  UC1618334  Clarkia rubicunda Barbara Ertter, Brad Olson 1993-8-8 12204 Contra Costa s.w. San Ramon (Bishop Ranch Regional Open Space); Bishop Ranch Regional Open Space Comment
  UC2012964  Clarkia rubicunda Barbara Ertter with Travis Columbus 1990-6-10 9103 Contra Costa NE corner of Briones Regional Paark, Briones Hills W of Pleasant Hill, jct of Briones Crest and Table Top trails E of Briones Peak. Comment
  SEINET4149808  Clarkia rubicunda subsp. blasdalei K. Brandegee 1908-7-3 s.n. Contra Costa Point Isabel, N side a few feet above water, exact type locality Comment
  CAS-BOT-BC165450  Clarkia unguiculata E. E. Stanford 1930-5-24 1510 Contra Costa Marsh Creek Canyon Comment
  CHSC27728  Clarkia unguiculata Coleta Lawler 1978-6-23 296 Contra Costa West of Concord on Alhambra Valley Road, 0.7 miles east of Bear Creek Road; roadcut. Comment
  CHSC75102  Clarkia unguiculata Roger Thom 1987-5-18 12 Contra Costa 1.0 mi from intersection with Pleasant Hill Rd. on Reilez Valley Rd. Lafayette (1600 block). Road cut. 182 Comment
  RSA297008  Clarkia unguiculata W. L. Jepson 1919-6-8 8325 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC165454  Clarkia unguiculata Paul F. Covel 1936-5-17 259 Contra Costa Ford Canyon, s-w base of Mt Diablo Comment
  RSA144626  Clarkia unguiculata William M. Klein 1958-6-9 439 Contra Costa Rolling coastal sandhills behind the Antioch sewage treatment plant Comment
  CAS-BOT-BC439166  Claytonia exigua subsp. exigua Mary L. Bowerman 1932-3-12 1113 Contra Costa Mount Diablo. Alamo Canyon 365 Comment
  CAS-BOT-BC439167  Claytonia exigua subsp. exigua John Thomas Howell 1926-3-7 1676 Contra Costa Mt. Diablo Comment
  UC1136707  Claytonia exigua subsp. exigua R. C. Wilson 1935-3-29 162 Contra Costa 1 mi w Deer Flat; Mt. Diablo Quad. 716 Comment
  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
  UC692547  Claytonia exigua subsp. exigua Mary L. Bowerman 1935-3-16 2737 Contra Costa e fork Arroyo del Cerro; Mount Diablo 262 Comment
  UC692550  Claytonia exigua subsp. exigua Mary L. Bowerman 1933-5-10 2065 Contra Costa ridge w Indian Ceremonial Spring; Mount Diablo 1005 Comment
  CAS-BOT-BC439323  Claytonia exigua subsp. glauca Mary L. Bowerman 1932-3-6 1098 Contra Costa Mount Diablo. Black Hawk Ridge near saddle Comment
  CAS-BOT-BC439440  Claytonia parviflora subsp. parviflora John Thomas Howell 1933-5-14 11252 Contra Costa Hills east of St. Mary's College Comment
  UC1948961  Claytonia parviflora subsp. parviflora William J. Ferlatte, L. Maynard Moe 1970-4-27 1232 Contra Costa San Francisco Bay: Red Rock Island Comment
  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
  UC692542  Claytonia parviflora subsp. parviflora Mary L. Bowerman 1932-2-28 1090 Contra Costa ridge e Rhine Canyon (e side about 150 ft above Curry Canyon); Mount Diablo Comment
  JEPS75502  Claytonia perfoliata subsp. mexicana P. F. Yorks 1975-4-10 382 Contra Costa ca 1.7 km s Bear Creek Rd on Hampton Rd in Hampton Road Natural Reserve (n of Briones Reservoir) 190 Comment
  CAS-BOT-BC440076  Claytonia perfoliata subsp. perfoliata John Thomas Howell 1933-5-14 11273 Contra Costa Hills east of St. Mary's College Comment
  CAS-BOT-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
  JEPS112035  Claytonia perfoliata subsp. perfoliata D. G. Kelch 2003-3-21 03 .54 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  SEINET194968 Image available Claytonia perfoliata subsp. perfoliata A. A. Heller 1908-4-17 8909 Contra Costa Tracey. 10 Comment
  UC1057451  Claytonia perfoliata subsp. perfoliata G. Thomas Robbins 1937-4-25 148 Contra Costa 2 mi e Alamo Comment
  UC7886  Claytonia perfoliata subsp. perfoliata W. H. Brewer 1862-5-12 1080 Contra Costa Mount Diablo 609 Comment
  UC7914  Claytonia perfoliata subsp. perfoliata J. Burtt Davy 1895-4-7 983 Contra Costa Antioch Comment
  UC2031506  Clematis lasiantha Barbara Ertter with Travis Columbus 1990-6-10 9104 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill ridge ENE of Briones Peak Comment
  SEINET5547635  Clematis ligusticifolia H. S. Gentry 1931-1 57 Contra Costa Collected near Buckle Point, Mount Diablo. Comment
  UC903181  Collinsia bartsiifolia var. bartsiifolia Ethel Crum 1936-4-5 1744 Contra Costa 2 mi w Byron; South Coast Ranges 45 Comment
  UC691495  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
  UC691656  Collinsia heterophylla Mary L. Bowerman 1933-5-17 2103 Contra Costa branch of Curry Canyon due s of Olafsons' barn, just n of first fork of canyon, Mount Diablo Curry Canyon; Mount Diablo, branch of Curry Canyon 289 Comment
  SEINET5544350  Collinsia sparsiflora H. S. Gentry 1931-1 48 Contra Costa Collected near Buckle Point, Mount Diablo. Comment
  UC26642  Collinsia sparsiflora var. collina State Survey Contra Costa Mount Diablo Comment
  UC672470  Collinsia sparsiflora var. collina Herbert L. Mason 1929-3-15 5051 Contra Costa Nortonville Comment
  UC691585  Collinsia sparsiflora var. collina Mary L. Bowerman 1933-4-9 1836 Contra Costa w fork Donner Canyon Mount Diablo (Mount Diablo) 243 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
  JEPS6335  Collinsia sparsiflora var. collina Mary L. Bowerman 1932-3-12 1112 Contra Costa Alamo Canyon. 365 Comment
  RSA138305  Collinsia tinctoria Volney Rattan 1886-06 s.n. Contra Costa Mount Diablo Comment
  UC691624  Collinsia tinctoria Mary L. Bowerman 1935-6-1 3117 Contra Costa summit Mount Diablo Mount Diablo, summit (towards Devils Pulpit) 1158 Comment
  JEPS75520  Conium maculatum P. F. Yorks 1974-5-19 159 A Contra Costa 1.4 km s of Bear Creek Road (n of Briones Reservoir, on Hampton Road in Hampton Road Natural Preserve); Hampton Road Natural Preserve 180 Comment
  JEPS75521  Conium maculatum P. F. Yorks 1974-5-19 159 B Contra Costa 1.4 km s of Bear Creek Road (n of Briones Reservoir, on Hampton Road in Hampton Road Natural Preserve); Hampton Road Natural Preserve 180 Comment
  CDA3510  Consolida ambigua O. Moss 1970-6-3 Contra Costa Empire Mine Road, Brentwood. 0 Comment
  CDA21753  Conyza canadensis D. G. Kelch, A. G. Murdock 2005-7-14 5 .463 Contra Costa Carquinez Strait Region; Arroyo del Hambre; Franklin Creek near Glen Frazier. Comment
  JEPS111731  Conyza canadensis D. G. Kelch 2004-9-2 04 .331 Contra Costa Pacheco Marsh east of Martinez and I-680 and east of lone tree Marsh 5 Comment
  CAS-BOT-BC32964  Cordylanthus nidularius John Thomas Howell 1942-7-19 17044 Contra Costa NE of Deer Flat, Mt. Diablo Comment
  UC691741  Cordylanthus nidularius J. T. Howell 1942-7-19 17044 Contra Costa NE (?) of Deer Flat, Mt. Diablo, Contra Costa Co. Comment
  UC2042771  Cordylanthus pilosus subsp. pilosus Barbara Ertter with Lynne Hosley 1992-8-29 11266 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, in canyon along Coyote Trail Comment
  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
  RSA666381  Cordylanthus pilosus subsp. pilosus Barbara J. Ertter, Brad Olson 1993-8-8 12200 Contra Costa Bishop Ranch Regional Open Space southwest of San Ramon. Comment
  SEINET12765203  Cordylanthus pilosus subsp. pilosus Barbara Ertter, Lynne Hosley 1992-8-29 11266 Contra Costa East of Moutn Diablo in canyon along Coyote Trail.; 0 Comment
  CDA38583  Cornus sericea D. G. Kelch 2003-8-13 3 .132 Contra Costa Carquinez Strait; Pinole Creek. Comment
  UC650584  Cornus sericea subsp. sericea Ira L. Wiggins 1930-4-18 4593 Contra Costa levee banks e. end Jersey Island Comment
  CDA37420  Cortaderia selloana D. G. Kelch, Mike Perlmutter 2011-9-23 11 .751 Contra Costa Immediately north of Discovery Bay. Comment
  UCD37373  Cortaderia selloana Beecher Crampton 1959-9-3 5456 Contra Costa Contra Costa County, 2 miles southeast of El Sobrante, along San Pablo Dam Road. Comment
  CDA39608  Corylus cornuta var. californica D. G. Kelch 2003-8-13 3 .126 Contra Costa Carquinez Strait; Vaca Canyon. Comment
  UC2028107  Cotoneaster pannosus Barbara Ertter with Christopher Baysdorfer 1998-5-10 16117 Contra Costa Lime Ridge Open Space northwest of Mount Diablo. Comment
  UC2027731  Cotula australis Barbara Ertter 1997-2-16 15464 Contra Costa Shell Ridge Open Space on west flank of Mount Diablo, roadbed east of and above Deer Lake. 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
  JEPS65181  Crassula aquatica L. R. Heckard 1971-4-15 2486 Contra Costa s. Byron (field at intersection of Holey Rd.) Comment
  RSA0068476  Crassula connata Katie Gallagher, Nick Jensen 2014-4-26 202 Contra Costa Las Trampas Regional Wilderness. 487 Comment
  UC2027987  Crassula tillaea Barbara Ertter 1998-5-3 16033 Contra Costa Pine Ridge summit of Wall Point Road at southwest base of Mount Diablo. Comment
  CDA37402  Cressa truxillensis D. G. Kelch, Mike Perlmutter 2011-9-23 11 .757 Contra Costa Entry to Discovery Bay. Comment
  UC1121528  Crocanthemum scoparium var. vulgare R. W. Lundh Contra Costa San Francisco Quadrangle Comment
  UC1198987  Croton californicus Joseph P. Tracy 1921-5-17 5567 Contra Costa Antioch 30 Comment
  CDA15280  Crypsis schoenoides G. F. Hrusa, D. Crowe, R. York 1998-7-17 14718 Contra Costa Sacramento Delta; Few plants in dry areas of now dry drainage/wash through disturbed grasslands at E end of Dow Chemical property. Spreading-prostrate, annual. Comment
  CDA32859  Crypsis schoenoides D. G. Kelch 2010-10-5 10 .421 Contra Costa The Delta; Just east of Antioch bridge. Comment
  UC1618174  Crypsis schoenoides Barbara Ertter 1989-9-30 8866 Contra Costa 1 1/4 mi nw of Inspiration Point (Tilden Regional Park e of El Cerrito, East Bay Skyline National Recreation Trail (=Nimitz Way)); Tilden Regional Park, E Bay Skyline Nat'l Recreation Trail Comment
  CAS-BOT-BC190081  Crypsis schoenoides R. E. Frenkel 1964-9-17 864 Contra Costa On Marsh Creek Road at shore of Marsh-Kellogg Creek Reservoir. 45 Comment
  CAS-BOT-BC190082  Crypsis schoenoides R. E. Frenkel 1964-9-17 863 Contra Costa On Marsh Creek Road at shore of Marsh-Kellogg Creek Reservoir. 45 Comment
  CAS-BOT-BC190136  Crypsis vaginiflora Walter Knight 1977-7-20 s.n. Contra Costa Briones Ridge, Briones Regional Park. 304 Comment
  UC2028263  Cryptantha clevelandii Barbara Ertter 1999-6-12 16717 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
  RSA0029675  Cryptantha corollata Barbara Ertter, Susan D Alcamo 1998-6-12 16165 Contra Costa North Peak Trail from Devil s Elbow on SE side of Mount Diablo summit, steep rocky S-facing bowl. 1037 Comment
  UC691337  Cryptantha decipiens Mary L. Bowerman 1932-4-16 1345 Contra Costa Eagle Point Comment
  UC55905  Cryptantha microstachys Jos. Burtt Davy 1901-4-21 7046 Contra Costa Wildcat Canyon Comment
  UC79469  Cryptantha microstachys Katharine Brandegee Apr 1889 Contra Costa Antioch Comment
  POM64396  Cryptantha microstachys C. F. Baker 1903-4-28 2810 Contra Costa Mitchell s Canyon, Mt. Diablo. Comment
  RSA720802  Cryptantha microstachys Mary L. Bowerman 1978-5-14 s.n. Contra Costa Mount Diablo. E side of Eagle Peak, old mine wagon trail up Black Canyon. Area of Aug. 1977 burn. Comment
  UC762463  Cryptantha microstachys R. F. Hoover 1938-5-4 3349 Contra Costa e of Tassajero Creek Comment
  UC691359  Cryptantha muricata Mary L. Bowerman 1933-4-26 1914 Contra Costa North Peak ridge, ese of the peak, s-face Mount Diablo 609 Comment
  JEPS67634  Cryptantha nevadensis Mary L. Bowerman 1932-3-27 1143 Contra Costa at base of Mitchell Rock Mount Diablo, Mitchell Rock Comment
  JEPS67884  Cryptantha torreyana Mary L. Bowerman 1933-6-3 2245 Contra Costa Meridian Peak summit Mt. Diablo Comment
  JEPS116792  Cryptantha torreyana David Gowen, Abby Moore, Mike Park 2006-6-13 608 Contra Costa Mount Diablo; Along access road to tower facility north of summit parking lot. 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
  CDA33660  Cuscuta japonica Yost/Fonseca 2008-8-7 PDR# 14544449 Contra Costa Richmond; 101 Marcus Ave. 0 Comment
  CDA33695  Cuscuta japonica Yost 2008-7-18 PDR# 1454447 Contra Costa Richmond; 105 Martin Dr. 0 Comment
  CDA39961  Cuscuta japonica Niang/Slattengreen 2008-8-2 PDR# 1454023 Contra Costa El Sobrante; 5741 Skyview Place (near Richmond city limits?) 0 Comment
  CDA41311  Cuscuta japonica R. Fonseca 2006-12-12 PDR 1373709 Contra Costa San Francisco Bay Area; 654 Marlesta Rd, Pinole. Sheet 2 of 2. 0 Comment
  SEINET943390  Cuscuta subinclusa Joseph P. Tracy 1932-1 10790 Contra Costa Franklin Canyon Comment
  UC1197867  Cuscuta subinclusa Joseph P. Tracy 1932-9-10 10789 B Contra Costa Franklin Canyon 152 Comment
  UC562483  Cuscuta subinclusa Joseph P. Tracy 1932-9-10 10789 Contra Costa Franklin Canyon 152 Comment
  CDA4533  Cynara cardunculus T. C. Fuller 1957-10-2 399 -57 Contra Costa Antioch. 0 Comment
  JEPS99953  Cynara cardunculus A. Langston 2003-7-17 AL 67 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC299745  Cynara cardunculus John Thomas Howell 1953-3-15 28922 Contra Costa Danville Comment
  CDA34471  Cynoglossum grande D. G. Kelch 2006-2-25 6 .083 Contra Costa Carquinez Strait; Crockett. Edwards Canyon. Comment
  RSA721595  Cynosurus echinatus Mary L. Bowerman 1975-6-7 s.n. Contra Costa Mount Diablo. Big Spring. Comment
  UC2028466  Cynosurus echinatus Barbara Ertter 1997-8-24 15769 Contra Costa Southwest side of Mount Diablo, Rock City area Comment
  SD175778  Cyperus difformis D. G. Kelch 2006-9-15 06 474 Contra Costa Shell Ave., Martinez, between Pine St. and Harborview Dr. 56 Comment
  CAS-BOT-BC114617  Cyperus eragrostis Walter Knight 1979-6-15 3394 Contra Costa Point Emmett. Brown's Island. Comment
  CAS-BOT-BC114616  Cyperus eragrostis Walter Knight 1978-8-27 3200 Contra Costa At reservoir's Edge. Contra Loma Regional Park. 30 Comment
  POM264407  Cyperus eragrostis Thomas Morley 1940-12-3 90 Contra Costa Upper end of San Leandro Lake near mouth of Redwood Creek 130 Comment
  UC1157919  Cyperus eragrostis Olive Dyer 1936-9-5 29 W Contra Costa 1/2 mi. above San Pablo Ave. Wildcat Creek Comment
  SEINET3909823  Cyperus niger Louis C. Wheeler 1952-10-2 7000 Contra Costa Mount Diablo: ca. 0.8 mile up from Turtle Ranch, ca. 1 mile downhill from divide in road.; 0 Comment
  CAS-BOT-BC114071  Cyperus squarrosus Walter Knight; Frank Almeda; Joanne Dean; B. Doyle 1978-10-11 3324 Contra Costa Browns Island, Botany Cove. Comment
  RSA666380  Cytisus monspessulanus Barbara J. Ertter 1991-5-12 9816 Contra Costa Point Isabel Regional Shoreline in SW corner of El Cerrito, on San Francisco Bay. Comment
  CAS-BOT-BC198197  Cytisus striatus R. Leen 1986-7-10 s.n. Contra Costa Alvarado Canyon, East Bay Regional Park Comment
  UC2070617  Danthonia californica Barbara Ertter 2002-5-16 17862 Contra Costa Richmond Field Station (UC-Berkeley). Comment
  UCD60458  Danthonia californica G. L. Stebbins Jr. 1939-5-24 2714 Contra Costa Opposite Berkeley Country Club. Comment
  UC1795882  Danthonia californica var. californica Barbara Ertter, Brad Olson 1994-5-7 12754 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  UC2028007  Datura wrightii Barbara Ertter with Amy Rusev 1998-1-17 15897 Contra Costa Lime Ridge Open Space at NW foot of Mount Diablo, sandy open N-facing slope on NE corner of open space (off trail). Comment
  UC32716  Deinandra corymbosa J. Burtt Davy 1896-1-1 Contra Costa Moraga Pass Comment
  CAS-BOT-BC294016  Deinandra kelloggii Alice Eastwood 1921-4-18 10300 Contra Costa Antioch 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-BC294025  Deinandra kelloggii James I. McMurphy 1909-5-21 s.n. Contra Costa Antioch Comment
  UC1795685  Deinandra kelloggii Barbara Ertter, Chris Thayer 1994-5-19 12783 Contra Costa Roadside opposite east end of Antioch Dunes, south side of Wilbur Avenue north of railroad tracks east of Antioch Comment
  UC691769  Deinandra kelloggii H. L. Mason 1929-3-29 5137 Contra Costa 2 mi above Clayton (Marsh Creek Road) Comment
  CAS-BOT-BC291812  Deinandra lobbii Elsie M. Zeile 1921-9-17 s.n. Contra Costa Rodeo Comment
  UC2028960  Deinandra lobbii Barbara Ertter with Brad Olson et al. 2000-6-2 17309 Contra Costa Brushy Peak Regional Preserve NE of Livermore, dry edge of alkali flat. Comment
  JEPS102902  Delairea odorata Barbara Ertter, Chris Thayer 1996-10-25 15358 Contra Costa Little Pine Creek, Diablo Foothills Regional Park Mount Diablo Comment
  UC691949  Delphinium californicum Mary L. Bowerman 1931-5-16 863 Contra Costa clearing n of road at foot last steep stretch; Mount Diablo, Meridian Peak summit 1143 Comment
  JEPS6242  Delphinium californicum subsp. interius W. L. Jepson 1921-11-19 9523 Contra Costa s slope Mount Diablo (chamise ridge) Comment
  UC9187  Delphinium hesperium G. Survey 1862-5-29 1185 Contra Costa dry hill Mount Diablo, Marsh ranch Comment
Read comments Jan 20 2008
  POM225347  Delphinium hesperium J. T. Howell 1931-5-12 6482 Contra Costa N side of Mt Diablo Comment
  UC912567  Delphinium hesperium subsp. pallescens H. L. Mason 1928-4-29 4423 Contra Costa s slope of mt Mount Diablo, Sycamore Canyon Comment
  CAS-BOT-BC10009  Delphinium hesperium subsp. pallescens R. D. Stone 1983-5-17 510 Contra Costa Extreme northern end of the Jackson Ranch, near Alameda County line ca. 9 mi. NE of Livermore and 1 mi. NNE of Brushy 182 Comment
  UC9189  Delphinium parryi subsp. parryi J. Burtt Davy 1895-4-8 975 Contra Costa foothills Antioch Comment
  UC9200  Delphinium patens J. Burtt Davy 1895-4-7 964 Contra Costa foothills Antioch Comment
  UCD102398  Delphinium patens Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Bald Ridge Trail. Bald Ridge. 890 Comment
  UC1818933  Delphinium patens Barbara Ertter, Brad Olson, Diane Lake 1996-4-14 14595 Contra Costa Sycamore Spring Trail off Prospectors Gap Rd., east side Mt. Diablo. 640 Comment
  CAS-BOT-BC116455  Delphinium patens subsp. patens H. L. Mason 1925-3-10 1301 Contra Costa Mount Diablo Comment
  UC2027926  Delphinium patens subsp. patens Barbara Ertter with Linda Vorobik 2001-3-24 17571 Contra Costa Lime Ridge Open Space east of Walnut Creek, eastern edge overlooking Crystal Springs subdivision. Comment
  RSA624911  Delphinium recurvatum John A. Churchill 1974-4-15 s.n. Contra Costa Between Route K4 and railroad at Holey Road Comment
  UC1314933  Delphinium recurvatum R. F. Hoover 1967-4-28 10511 Contra Costa Byron Hot Springs Comment
  UC9250  Delphinium variegatum J. Burtt Davy 1895-4-8 971 Contra Costa foothills Antioch Comment
  UC13975  Delphinium variegatum subsp. variegatum Chestnut and Drew 1889-4-6 Contra Costa Concord Comment
  HSC8594  Dendromecon rigida D. A. Shally 1965-4-18 32 Contra Costa Canyon, 1.5 mi. NE of Canyon Store on 'fire trail Comment
  UC60233  Deschampsia cespitosa subsp. beringensis Jos. Burtt Davy 1900-6-7 6667 Contra Costa near Martinez Martinez Comment
Read comments Sep 27 2007
  POM181464  Deschampsia danthonioides I. L. Wiggins 1930-4-17 4576 Contra Costa 1/4 mi. S. of Byron Comment
  CAS-BOT-BC192676  Deschampsia danthonioides Mary L. Bowerman 1935-6-28 3164 Contra Costa Chase Pond 548 Comment
  CAS-BOT-BC192677  Deschampsia danthonioides Mary L. Bowerman 1935-6-28 3164 Contra Costa Chase Pond 548 Comment
  UC1606345  Deschampsia elongata Barbara Ertter, Brad Olson 1991-9-28 10843 Contra Costa s. end of San Pablo Reservoir between Orinda and El Sobrante; San Pablo Reservoir 94 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
  JEPS9567  Dicentra chrysantha W. L. Jepson 1920-8-12 9076 Contra Costa s slope towards summit Mt. Diablo Comment
  UC33546  Dicentra chrysantha V. K. Chesnut before August, 1901 Contra Costa Mt. Diablo Comment
  POM212448  Dicentra chrysantha Joseph A. Ewan 1933-10-15 8030 Contra Costa South slope of Mt. Diablo 1067 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
  JEPS64158  Dichelostemma capitatum Helen Bergfried 1918-5-12 Contra Costa vicinity Berkeley; Wildcat Creek Comment
  UC64062  Dichelostemma capitatum Harley P. Chandler 1901-3-22 854 Contra Costa near Martinez; San Francisco Bay Region Comment
  CAS-BOT-BC500089  Dichelostemma capitatum R. F. Hoover 1938-2-21 2756 Contra Costa Point Richmond Comment
  UC2027976  Dichelostemma capitatum subsp. capitatum Barbara Ertter 1997-2-16 15457 Contra Costa Shell Ridge Open Space on west flank of Mount Diablo. Comment
  UCSB39448  Dichelostemma capitatum subsp. capitatum Fritzke, Sue 1980-3-1 Contra Costa Hills behind Walnut Heights Elementary School, off of Walnut Blvd., 1 mile east of intersection with Walker Rd Comment
  CAS-BOT-BC150326  Diplacus aurantiacus Alice Eastwood 1915-6-21 4737 Contra Costa San Leandro Comment
  CAS-BOT-BC150327  Diplacus aurantiacus L. R. Abrams 1916-6-30 5704 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC153952  Diplacus rattanii Alice Eastwood 1915-5-30 4542 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC121839  Dirca occidentalis Walter Knight; Irja Knight 1967-1-24 2057 Contra Costa Tilden Regional Park, near little train Comment
  CHSC22236  Dirca occidentalis Robert A. Schlising 1962-2-21 2079 Contra Costa Berkeley-Oakland hills of westernmost part of county. Comment
  UC723819  Dirca occidentalis Joseph Andorfer Ewan 1934-3-10 8643 Contra Costa creek bottom flat 2 mi below Orinda road bridge; Wildcat Canyon Comment
  LA209792  Dirca occidentalis Joseph Andorfer Ewan; 1934-3-10 8643 Contra Costa Wildcat Canyon, 2 mi below Orinda Rd bridge, Comment
  LA209793  Dirca occidentalis Joseph Andorfer Ewan; 1936-4-15 9444 -a Contra Costa NE side Bald Peak, San Pablo Ridge Comment
  UCSB27473  Dirca occidentalis Havlik, Neil 1969-7-10 Contra Costa Along the West Ridge Trail about one-half mile from Skyline Gate, Redwood Regional Park, Oakland Hills 396 Comment
  RSA170194  Disporum hookeri var. hookeri J. Rattenbury 1948-4-13 111 Contra Costa On south side of highway above creek, half mile east of Tunnel from Oakland; 213 Comment
  CAS-BOT-BC208656  Distichlis spicata John Thomas Howell; Gordon H. True 1972-6-29 48925 Contra Costa Byron Hot Springs Road southeast of Byron Comment
  JEPS108532  Distichlis spicata Lisa Schultheis with Kevin Hintsa 1995-8-20 263 -95 Contra Costa Mount Diablo. 2.1 mi from North Gate kiosk. along North Gate Road. Comment
  UC2029148  Distichlis spicata Barbara Ertter with Dan Norris 1999-11-14 16851 Contra Costa Black Diamond Mines Regional Preserve, south of parking area for Somersville townsite. Comment
  UCD64380  Distichlis spicata var. stolonifera A. A. Beetle 1941-6-24 1752 Contra Costa Point Richmond on San Francisco Bay. Comment
  UC1050383  Distictis lactiflora N. Floy Bracelin 1942-8-23 1683 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CDA37339  Dittrichia graveolens D. G. Kelch 2010-10-31 10 .444 Contra Costa Valley north of Alhambra Valley Rd., south of Pinole Peak, east of Hercules. Comment
  CDA39011  Dittrichia graveolens D. G. Kelch 2011-9-23 11 .75 Contra Costa Carquinez Strait Region; Martinez Train Station. Comment
  CDA4505  Dittrichia graveolens D. G. Kelch 2006-9-25 6 .476 Contra Costa Carquinez Strait; Marsh 1km. W of Pacheco Slough. Comment
  UC1039536  Dodecatheon clevelandii subsp. patulum Herbert L. Mason 1929-3-15 5044 Contra Costa Nortonville Comment
  UC1123279  Dodecatheon clevelandii subsp. patulum R. C. Wilson 1935-2-26 110 Contra Costa 3/4 mi sw Somersville; Mt. Diablo Quad., sw of Somersville Comment
  RSA6497  Dodecatheon clevelandii subsp. patulum D. D. Keck 1933-4-2 1997 Contra Costa Vasco Rd., south of Vasco School. Comment
  HSC101959  Dodecatheon hendersonii Nikolaus Gillen, Michelle Bihler 2014-3-20 11 Contra Costa Mount Diablo State Park. Eagle Peak Trail. 649 Comment
  UC1123275  Dodecatheon hendersonii R. C. Wilson 1935-2-27 114 Contra Costa Somersville Mt. Diablo Quad. Comment
  UC673394  Dodecatheon hendersonii Herbert L. Mason 1925-3-10 1294 Contra Costa Mount Diablo Mount Diablo (open slopes) Comment
  SEINET8561944  Dodecatheon hendersonii P. Del Monte 1976-3-28 s.n. Contra Costa Oakhill Lane, 1 mile above junction with Morgan Territory Road. 305 Comment
  JEPS20291  Downingia insignis Lewis S. Rose 1956-4-16 56017 Contra Costa 2 mi se Byron 7 Comment
  JEPS14473  Downingia pulchella G. Thomas Robbins with Peter H. Raven 1956-4-28 3666 Contra Costa just e. of Martinez junction & 0.1 mi w. of Buchanan Field Rd. State Hwy. 4 Comment
  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
  UC691095  Drymocallis glandulosa var. wrangelliana Mary L. Bowerman 1938-6-14 3679 Contra Costa Canyon Nook Mount Diablo, Canyon Nook Comment
  CAS-BOT-BC70864  Dryopteris arguta Mary L. Bowerman 1930-6-18 342 Contra Costa Dan Cook Canyon Comment
  UC2028552  Dryopteris arguta Barbara Ertter 1997-9-7 15795 Contra Costa North side Mount Diablo, Donner Creek crossing at south end of Hetherington Trail Comment
  CAS-BOT-BC70863  Dryopteris arguta D. E. Breedlove 1970-4-18 17443 Contra Costa north edge of Lafayette above Laurel Drive 243 Comment
  UCD150886  Dysphania ambrosioides James A. Neilson Jr. 1972-11-9 s.n. Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 1 Comment
  POM319552  Echinochloa crus-galli Patricia Wilder 1961-8-29 1098 a Contra Costa Walnut Creek, near Calif. Hwy 24 west side of city; Coast Mt. Range 42 Comment
  SJSU10392  Echinochloa crus-galli J. E. Cox 1976-11-26 Contra Costa right of way of Dolores E Bay Municipal Utilities District, Lafayette Comment
  UCD150908  Echinochloa crus-galli James A. Neilson Jr. 1972-11-2 3611 Contra Costa Walnut Creek drainage at State Highway 4. Elevation estimated using Google Earth by label maker. 1 Comment
  CDA2007  Echinochloa crus-galli var. crus-galli D. G. Kelch, A. G. Murdock 2003-8-13 3 .121 Contra Costa Carquinez Strait Region; Martinez Marsh Comment
  CAS-BOT-BC197224  Echinochloa crus-pavonis Walter Knight 1978-8-27 3199 Contra Costa Contra Loma Regional Park near Antioch 30 Comment
  SD107682  Eclipta prostrata Walter Knight, Irja Knight 1980-8-26 Contra Costa Pond's edge in a sewage disposal plant. Comment
  UC2027936  Eclipta prostrata Barbara Ertter 1996-9-19 15298 Contra Costa Antioch Marina, edge of Dow Marsh lands. Comment
  UC1949380  Eichhornia crassipes Barbara Ertter 1990-9-16 9642 Contra Costa Junction of Cypress Road & Jersey Island Road E of Oakley Comment
  JEPS99514  Elatine brachysperma Mary Bowerman 1975-9-14 Contra Costa Mount Diablo, Hidden Pond. 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
  JEPS111879  Eleocharis macrostachya A. G. Murdock 2004-4-30 250 Contra Costa McEwen Road West side of road in boggy wetland. 130 Comment
  UC691971  Eleocharis macrostachya Mary L. Bowerman 1938-5-28 3645 Contra Costa Maple Spring, on upper margin, especially in the NW corner Mount Diablo Comment
  UC691974  Eleocharis macrostachya Mary L. Bowerman 1935-6-21 3151 Contra Costa S of Turtle Rock (tiny pool above main pond); Mount Diablo Comment
  CAS-BOT-BC112799  Eleocharis macrostachya Miss Mary Leolin Bowerman 1938-5-28 3645 Contra Costa Maple Spring, on upper margin especially in the NW corner. Comment
  UC691969  Eleocharis parishii Mary L. Bowerman 1931-4-11 705 a Contra Costa Sulphur Spring in Pine Canyon Mount Diablo 137 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
  UC756634  Elymus G. L. Stebbins Jr. 1946-6-9 3658 Contra Costa 2 mi e El Cerrito (near Mira Vista Country Club) Comment
  UC756639  Elymus G. L. Stebbins Jr. 1946-6-9 3656 Contra Costa 2 mi e El Cerrito (near Mira Vista Country Club) Comment
  CAS-BOT-BC203828  Elymus X hansenii Mary L. Bowerman 1935-6-1 3109 Contra Costa Mount Diablo. Largest ridge between Ransom Point ridge and Mitchell-Pine divide 1066 Comment
  JEPS99567  Elymus elymoides Mary Bowerman 1975-6-7 Contra Costa Mount Diablo, by Big Spring trail. Comment
  UC691182  Elymus elymoides subsp. elymoides Mary L. Bowerman 1933-6-14 2273 Contra Costa Curry-Cave Canyon Mount Diablo (ridge between two forks) Comment
  JEPS68570  Elymus glaucus W. L. Jepson 1918-6-3 7576 Contra Costa Donner Canyon Vicinity of San Francisco Bay, Mt. Diablo 533 Comment
  POM301024  Elymus trachycaulus subsp. trachycaulus Mary L. Bowerman 1933-6-3 2234 Contra Costa Mount Diablo Summit. Ransom Point Trail Comment
  SEINET12755579  Elymus triticoides J. B. Davy 1900-6-7 6658 Contra Costa Near Pacheco. Comment
  JEPS96227  Elytrigia intermedia subsp. intermedia Barbara Ertter with Lynne Hosley and Sid Cowles 1992-6-7 11084 Contra Costa along rd. to quarry e. of Round Top Sibley Volcanic Regional Preserve; Oakland Hills, Sibley Volcanic Regional Preserve Comment
  UC1505156  Elytrigia pontica subsp. pontica S. W. Edwards 1984-7-29 84 -17 Contra Costa along hwy 4 at junction with Patterson Pass Rd (just s of Brentwood) Comment
  JEPS1564  Emmenanthe penduliflora W. L. Jepson 1920-8-12 9075 Contra Costa Mt. Diablo Comment
  UCD36037  Epilobium brachycarpum Beecher Crampton 1949-8-5 489 Contra Costa Between the cities of Orinda and Moraga, on Hill Road, off of Moraga Road, right at summit. 106 Comment
  UC764884  Epilobium campestre R. F. Hoover 1937-5-14 2119 Contra Costa Byron Hot springs Comment
Read comments Dec 18 2008
  UC84481  Epilobium campestre T. S. Brandegee 1892-6-8 Contra Costa Antioch Comment
  UCR115054  Epilobium campestre G. Fred Hrusa, D. Crowe, R. York 1998-7-17 14709 Contra Costa Sacramento-San Joaquin River Delta, E end of Dow Chemical property. 12 Comment
  CDA38092  Epilobium canum A. G. Murdock 2003-9-12 197 Contra Costa Carquinez Strait Region; Crockett - Tormey Headlands. At Superfund overlook. Comment
  UC1122304  Epilobium canum subsp. canum H. S. Yates 1934-9-2 4068 Contra Costa 1 mi sw Mount Diablo; Mount Diablo Quadrangle Comment
  UC634754  Epilobium canum subsp. canum H. L. Mason 1924-11-23 1169 Contra Costa Las Trampas Ridge Comment
  UC914255  Epilobium canum subsp. canum Verne Grant and Alva Grant 1946-9-29 7877 Contra Costa near old tunnel road; Berkeley Hills Comment
  CAS-BOT-BC166168  Epilobium canum subsp. canum H. E. McMinn 92 Contra Costa From n. slope of Mt. Diablo near the summit Comment
  UC2062662  Epilobium canum subsp. canum Barbara Ertter 2000-10-26 17548 Contra Costa West side Mount Diablo near pothole ponds on clay hillside along lower Barbeque Terrace Road in upper Pine Canyon. Comment
  UC2027881  Epilobium ciliatum subsp. ciliatum Barbara Ertter 2000-9-30 17534 Contra Costa West side Mount Diablo, pond on China Wall Road ca 1/2 mile NW of Macedo Ranch. Comment
  UC2028972  Epilobium ciliatum subsp. ciliatum Barbara Ertter 2000-7-16 17392 Contra Costa lower Pine Creek in Diablo Foothills Regional Park. Comment
  UC2070464  Epilobium ciliatum subsp. ciliatum Barbara Ertter, Diane Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10699 Contra Costa Browns Island N of Pittsburg near confluence of Sacramento & San Joaquin rivers opposite Pittsburg Marina. Comment
  CDA15286  Epilobium pygmaeum G. F. Hrusa, D. Crowe, R. York 1998-7-17 14725 Contra Costa Sacramento Delta; E side of Antioch-Pittsburg Hwy at E end of Dow Chemical property. Comment
  CDA9496  Epilobium pygmaeum D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .22 Contra Costa Byron Airport. Comment
  JEPS64374  Epipactis gigantea C. F. Saunders 1911-10-15 Contra Costa Mt. Diablo Comment
  UC2070524  Epipactis gigantea Barbara Ertter with David Gowen, J. Ginochio, M. Park, S. Matson, A. Moore, S. D'Alcamo, J. Greenhouse, K. Kersh and J. Gawthrup 2005-5-8 18565 Contra Costa Long Ridge on west side of Mount Diablo, stringer below Moses Rock Spring on Burma Road. Comment
  CAS-BOT-BC57134  Equisetum hyemale subsp. affine Walter Knight; Wayne Roderick; Steve Edwards; Bob Doyle 1978-9-19 3263 Contra Costa Browns Island, Alder Point 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
  JEPS123272  Eriastrum ertterae David Gowen 2005-6-5 404 Contra Costa Lime Ridge Open Space. Hill 724 east of the golf course. Comment
  UC1118629  Ericameria arborescens R. W. Lundh 1932-8-29 153 Contra Costa 2/3 mi n of Eagle Point; Mt. Diablo Quadrangle 457 Comment
  CAS-BOT-BC131504  Ericameria arborescens H. E. McMinn 1922-3-1 394 Contra Costa Mt. Diablo, 2 or 3 miles from Tall Gate Comment
  UC1118739  Ericameria linearifolia C. M. Belshaw 1936-5-8 2066 Contra Costa se slope of Mt. Diablo Mt. Diablo Quadrangle, Mt. Diablo (Plot 5) Comment
  UC1118741  Ericameria linearifolia R. W. Lundh 1932-9-22 164 Contra Costa Mt. Diablo Mt. Diablo Quadrangle, Mt. Diablo Comment
  UC36562  Ericameria linearifolia State Survey 1054 Contra Costa Mt. Diablo Comment
  UCD131397  Ericameria linearifolia R. A. Pendleton 1934-3-20 s.n. Contra Costa Mount Diablo. Comment
  UC87533  Erigeron foliosus var. franciscensis T. S. Brandegee 1883-7-1 Contra Costa Antioch Comment
  CAS-BOT-BC295717  Erigeron petrophilus var. petrophilus Joseph Andorfer Ewan 1936-7-5 9735 Contra Costa Wildcat Creek Comment
  UC691786  Erigeron petrophilus var. petrophilus Mary L. Bowerman 1930-10-19 489 Contra Costa at Garden-of-the-Gods; Mount Diablo, Fossil (Rock City) Ridge Comment
  CAS-BOT-BC295955  Erigeron philadelphicus Mary L. Bowerman 1935-5-16 2998 Contra Costa Mount Diablo. Russelman [Russellmann] Park road at Gregory Ranch junction 289 Comment
  JEPS41373  Erigeron philadelphicus var. philadelphicus W. L. Jepson 1922-5-26 9672 Contra Costa North Berkeley Hills Comment
  CAS-BOT-BC224219  Eriodictyon californicum L. R. Abrams 1921-5-25 8061 Contra Costa On road to summit, Mt Diablo Comment
  CDA28802  Eriodictyon californicum D. G. Kelch, Suzanne Latham, Matt Beyers 2009-6-3 9 .329 Contra Costa East Bay.; El Sobrante Ridge at end of Silver Belt Dr. on Miocene chert outcrop. Comment
  UC35509  Eriodictyon californicum F. P. McLean March, 1875 Contra Costa Mt. Diablo Comment
  UC691672  Eriodictyon californicum Mary L. Bowerman 1932-9-3 1530 Contra Costa Mount Diablo , Muir Area (Burn (1931)) Comment
  UC691673  Eriodictyon californicum Mary L. Bowerman 1932-9-3 1530 Contra Costa Mount Diablo , Muir Area (Muir Area, Burn (1931)) Comment
  UC762634  Eriogonum gracile R. F. Hoover 1940-11-23 4695 Contra Costa 2 mi s Byron Comment
  UCR263530  Eriogonum gracile Barbara Ertter, Tony Morosco 1996-7-27 15040 Contra Costa north side of Mount Diablo south of Clayton, where Cardinet Oaks Road crosses Donner Creek 335 Comment
  CAS-BOT-BC250384  Eriogonum gracile John Thomas Howell 1929-7-20 4330 Contra Costa 2 miles s. of Oakley Comment
  RSA0027415  Eriogonum gracile Barbara J. Ertter 1997-8-24 15773 Contra Costa Mount Diablo, SE side of peak on Mary Bowerman/Fire Interpretive Trail. Comment
  UC2029081  Eriogonum gracile Barbara Ertter with Joanne Kerbavaz and Mary Bowerman 2000-8-20 17510 Contra Costa north side Mount Olympia in Mount Diablo State Park, bulldozed site of former occupation at Zippe Spring. Comment
  CAS-BOT-BC257474  Eriogonum inerme var. inerme Mary L. Bowerman 1931-6-4 920 Contra Costa Mount Diablo. Summit Comment
  UC635006  Eriogonum luteolum var. luteolum H. L. Mason 1929-9-21 5434 Contra Costa 3 mi above, along Marsh Creek road Clayton Comment
  CAS-BOT-BC268917  Eriogonum nudum var. auriculatum A. D. E. Elmer 1903-7-1 4546 Contra Costa Mount Diablo Comment
  JEPS75519  Eriogonum nudum var. auriculatum P. F. Yorks 1975-7-18 475 B Contra Costa on Hampton Rd ca 1.7 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Area 190 Comment
  UC691758  Eriogonum nudum var. auriculatum Mary L. Bowerman 1935-3-24 2754 Contra Costa w face Lime Ridge (between two major cuts of the Cowell Cement Company); Mount Diablo Comment
  UC692165  Eriogonum nudum var. auriculatum Mary L. Bowerman 1933-9-3 2425 Contra Costa North Peak ridge Mount Diablo Comment
  UC692202  Eriogonum nudum var. auriculatum Mary L. Bowerman 1932-9-24 1593 Contra Costa flat-topped ridge above Mitchell Rock; Mount Diablo 441 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-BC268905  Eriogonum nudum var. auriculatum H. E. McMinn No date on label 133 Contra Costa Collected from near summit of Mt. Diablo, N. slope Comment
  UC1795738  Eriogonum nudum var. auriculatum Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14675 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay; grassland/scrub at northeast corner of area. Comment
  JEPS79014  Eriogonum nudum var. psychicola Edward Lee with Annetta Carter 1935-8-17 1631 Contra Costa Antioch Comment
  UC1926783 Image available Eriogonum nudum var. psychicola Barbara Ertter 1997-8-18 15766 Contra Costa Contra Costa County: Antioch Dunes on San Joaquin River east of Antioch. Comment
  CAS-BOT-BC269815  Eriogonum nudum var. psychicola Walter Knight 1965-9-7 1175 Contra Costa Antioch sand dunes Comment
  CAS-BOT-BC253092  Eriogonum roseum R. F. Hoover 1940-11-30 4699 Contra Costa 2 mi. S of Antioch Comment
  RSA39904  Eriogonum roseum P. A. Munz 1947-10-8 12207 Contra Costa Antioch 8 Comment
  CAS-BOT-BC267446  Eriogonum truncatum M. K. Curran 1886-5-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC267447  Eriogonum truncatum M. K. C. 1886-5-1 s.n. Contra Costa Antioch Comment
  RSA65310  Eriogonum truncatum J. T. Howell 1934-4-8 11816 Contra Costa 10 miles from Clayton on Marsh Creek Road Comment
  UC526210  Eriogonum truncatum John Thomas Howell 1934-4-8 11816 Contra Costa 10 mi on Marsh Creek Road Clayton Comment
  JEPS108318  Eriogonum umbellatum var. bahiiforme David Gowen 2005-5-29 399 Contra Costa West of Morgan Territory Rd. and the main entrance to Morgan Territory Regional Preserve. Rocky area west of summit of hill 2581 (Tassajara Pk.?). Comment
  CAS-BOT-BC262348  Eriogonum vimineum Mary L. Bowerman 1932-8-27 1524 Contra Costa Mount Diablo. South of Turtle Rock Comment
  POM301036  Eriophyllum confertiflorum Mary L. Bowerman 1933-6-3 2224 Contra Costa 2 miles by road from North Gate Comment
  JEPS75549  Eriophyllum confertiflorum var. confertiflorum P. F. Yorks 1974-6-16 176 Contra Costa on Hampton Road 1.6 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  JEPS28851  Eriophyllum jepsonii unknown 1896-5-29 Contra Costa Mt. Diablo Comment
  UC507126  Eriophyllum lanatum var. achilleoides Lincoln Constance 1933-6-25 E 94 Contra Costa near the se base of Mount Diablo (se slope) Comment
  UC507132  Eriophyllum lanatum var. achilleoides Lincoln Constance 1933-6-25 E 100 Contra Costa north slope near summit Mount Diablo 1097 Comment
  UC507133  Eriophyllum lanatum var. achilleoides Lincoln Constance 1933-6-25 E 101 Contra Costa just below summit on south slope Mount Diablo 1158 Comment
  UC691723  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1935-5-30 3097 c Contra Costa between the two ridges which converge at Twin Peaks (Eagle Point ridge) Mount Diablo 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-BC300966  Eriophyllum lanatum var. achilleoides L. Constance 1933-6-25 E 94 Contra Costa Near the base of Mount Diablo Comment
  CAS-BOT-BC300967  Eriophyllum lanatum var. achilleoides L. Constance 1933-6-25 E 98 Contra Costa Summti of Mt. Diablo 1158 Comment
  CAS-BOT-BC300976  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1938-6-14 3687 Contra Costa Mount Diablo. 0.3 mile below Muir Area 960 Comment
  CAS-BOT-BC300977  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1933-5-22 2163 Contra Costa Mount Diablo. Cave Point ridge Comment
  JEPS34593  Eriophyllum lanatum var. achilleoides W. L. Jepson 1918-6-5 7609 Contra Costa on the n peak Mt. Diablo Comment
  POM301034  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1935-5-22 3065 Contra Costa Most westerly of the two ridged which converge at Twin Peaks (Eagle Point Ridge) 366 Comment
  UC1584825  Eriophyllum staechadifolium Jerry Powell 1987-7-14 1504 Contra Costa sandstone bluff and back edge of point Molate Beach Comment
  CDA29179  Erodium botrys D. G. Kelch 2008-6-15 8 .246 Contra Costa Carquinez Strait; Crockett hills, S of Cummings Skyway, W of Crockett Blvd. Comment
  UC1130297  Erodium cicutarium R. C. Wilson 1935-2-26 113 Contra Costa Somersville Mt. Diablo Quad. 289 Comment
  UCSB12514  Erodium cicutarium Grah, Nancy 1962-4-14 Contra Costa 0.6 mile north of Tarry Lane on Tappan Lane; Orinda 243 Comment
  UC691774  Eryngium aristulatum var. aristulatum Mary L. Bowerman June 1942 3850 Contra Costa South Rd. Mt.Diablo Comment
  POM133545  Eryngium aristulatum var. aristulatum Katherine Brandegee 1907-5-16 s.n. Contra Costa [Unspecified] Comment
  POM312389  Eryngium aristulatum var. aristulatum S. Galen Smith, Peter Kamb, Francia Chisaki 1951-4-14 433 Contra Costa Small pond 7 miles north of Walnut Creek, east of Highway 21, 0.2 mile south intersection with Highway 4 Comment
  JEPS17451  Eryngium armatum W. L. Jepson 1922-7-9 9732 Contra Costa Richmond Comment
  UC1584829  Eryngium articulatum Jerry Powell 1990-8-29 1587 Contra Costa Antioch Nat'l Wildlife Refuge Comment
  UCD127482  Eryngium articulatum Walter Knight; Irja Knight et al. 1978-9-5 3235 Contra Costa Browns Island. Botany Cove. Comment
  CDA38315  Eryngium jepsonii D. G. Kelch 2004-7-9 4 .297 Contra Costa Carquinez Strait region; Crockett - Carquinez Scenic Drive; just west of Pt. Costa. Comment
  UCD136704  Eryngium spinosepalum John Thomas Howell; Gordon H. True 1972-6-29 48927 Contra Costa Byron Hot Springs Road, SE of Byron. Comment
  UC764567  Eryngium vaseyi Alice Eastwood and John Thomas Howell 1935-4-7 2121 Contra Costa near Byron (on Marsh Creek Rd.) Comment
  CAS-BOT-BC40766  Erysimum capitatum Alice Eastwood; John Thomas Howell 1936-4-19 2151 Contra Costa Antioch sand hills. Comment
  CAS-BOT-BC40767  Erysimum capitatum G. B. Rossbach 1955-3-13 570 Contra Costa Along tidal estuary of San Joaquin River just east of Antioch. 24 Comment
  CAS-BOT-BC41526  Erysimum capitatum H. L. Mason 1933-4-9 7189 Contra Costa East of Antioch along the San Joaquin River. 12 Comment
  UC691089  Erysimum capitatum Mary L. Bowerman 1930-6-14 322 Contra Costa open places near summit (nw exposure); Mount Diablo, Meridian Peak Comment
  CAS-BOT-BC40756  Erysimum capitatum G. B. Rossbach 1955-3-20 571 Contra Costa Upper south slope of Mount Diablo. 1005 Comment
  CAS-BOT-BC40757  Erysimum capitatum G. B. Rossbach; R. P. Rossbach 1938-6-5 859 Contra Costa Near summit Mount Diablo. Comment
  CAS-BOT-BC40758  Erysimum capitatum G. B. Rossbach; R. P. Rossbach 1938-6-5 859 Contra Costa Near summit Mount Diablo. Comment
  RSA0008586  Erysimum capitatum var. angustatum James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  JEPS68964  Erysimum capitatum var. capitatum Edward Lee 1935-3-10 1296 Contra Costa e Antioch (hollow in stablized dune); Antioch Sand Dunes Comment
  UC534852  Erysimum capitatum var. capitatum H. L. Mason 1933-4-9 7189 Contra Costa sand hills along river e Antioch; San Joaquin River 12 Comment
  JEPS75891  Erysimum capitatum var. capitatum Dan Cheatham 1977-4-2 Contra Costa easternmost Pacific Gas and Electric tower Antioch Dunes Comment
  CAS-BOT-BC402983  Eschscholzia californica A. A. Heller 1938-4-9 15018 Contra Costa 3 miles southwest of Antioch Comment
  SD8242  Eschscholzia californica Michener, Biolett 1892-4-10 Contra Costa Byron 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
  UC2012983  Eschscholzia californica Barbara Ertter with Tony Morosco 1996-7-27 15039 Contra Costa Mount Diablo State Park, Cardinet Oaks Road at crossing of Donner Creek. Comment
  UC2032838 Image available Eschscholzia californica Doran, Andrew Scott 2012-3-20 708 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  UC1789210  Eucalyptus globulus Barbara Ertter 2002-5-11 17840 Contra Costa lower Emmons Canyon just outside of Mount Diablo State Park boundary. 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
  UC24008  Eucrypta chrysanthemifolia var. chrysanthemifolia Brewer 1866-1 6280 Contra Costa Mount Diablo Comment
  RSA224327  Euphorbia crenulata Paul F. Covel 1938-5-1 1496 Contra Costa Old Tunnel Road. Comment
  UC2027934  Euphorbia maculata Barbara Ertter with Chris Thayer 1996-10-25 15382 Contra Costa West side of Mount Diablo, North Gate Road 3 road miles below Junction near Mineral Spring. Comment
  UCD142410  Euphorbia oblongata Thomas C. Fuller 1958-7-30 s.n. Contra Costa State Highway 4; 3 miles west of Martinez. Comment
  CAS-BOT-BC202390  Euphorbia ocellata Mary L. Bowerman 1931-8-29 1033 Contra Costa Mount Diablo. North Road 487 Comment
  UCD142475  Euphorbia peplus Terri Williamson 1990-5-22 68 Contra Costa Pleasant Hill, 212 Poshard Street. 12 Comment
  UC2028954  Euphorbia serpens Barbara Ertter 2000-7-16 17387 Contra Costa Lower Pine Creek in Diablo Foothills Regional Park. 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
  JEPS48472  Festuca californica W. L. Jepson 1943-5-27 20842 Contra Costa n side Black Hills; Mt. Diablo Comment
  UC692287  Festuca californica Mary L. Bowerman 1931-5-2 788 Contra Costa n end Eagle Point ridge; Mount Diablo Comment
  UC2028396  Festuca elmeri Barbara Ertter with Susan D'Alcamo 1998-6-12 16192 Contra Costa North Peak Trail south of Prospectors Gap on east side of Mount Diablo summit, NE-facing slope Comment
  UC2028144  Festuca microstachys Barbara Ertter 1998-4-4 15971 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, Fossil Hill. Comment
  CDA28219  Festuca rubra A. G. Murdock, D. G. Kelch 2004-5-28 269 Contra Costa Carquinez Strait Region; Pinole Peak. Comment
  UCD66330  Festuca rubra P. B. Kennedy 1919-5-1 s.n. Contra Costa North Berkeley. Hills. Comment
  JEPS100135  Foeniculum vulgare A. Langston 2003-7-28 AL 79 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD127505  Foeniculum vulgare P. B. Kennedy 1914-7-1 s.n. Contra Costa Richmond. Comment
  CAS-BOT-BC52535  Frangula californica subsp. californica Mary L. Bowerman 1932-11-26 1677 Contra Costa Pepperwood Spring (by North road, 1950 feet) Comment
  CDA36612  Frankenia salina T. C. Fuller 1965-11-24 14322 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-BC223390  Fraxinus dipetala Mary L. Bowerman 1930-6-22 363 Contra Costa Mount Diablo. Mitchell Canyon Comment
  JEPS61960  Fritillaria affinis W. L. Jepson 1921-11-19 8524 Contra Costa Mount Diablo Comment
  JEPS61961  Fritillaria affinis W. L. Jepson 1921-5-22 9218 Contra Costa Mount Diablo, half way up Mount Diablo Comment
  UC169477  Fritillaria affinis Katharine Brandegee April 1913 Contra Costa Eastport, Redwood Canyon, Oakland Hills, electric RR tunnel entrance Redwood Canyon; Eastport, , Oakland Hills Comment
  UC672117  Fritillaria agrestis Herbert L. Mason 1929-3-15 5057 Contra Costa about 5 mi from Brentwood (Marsh Creek Road); Marsh Creek Road Comment
  UC1134594  Fritillaria biflora C. M. Belshaw 1936-5-12 2108 Contra Costa 5 mi s of Round Valley 487 Comment
  SBBG122904  Fumaria capreolata B. Ertter 1999-3-21 16486 Contra Costa Miller Knox Regional Park near Pt Richmond Comment
  UCD121557  Galium andrewsii P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UC28155  Galium andrewsii subsp. gatense F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  CDA42125  Galium aparine D. G. Kelch 2005-5-5 5 .211 Contra Costa Carquinez Strait Region; Point Pinole - Giant Marsh. Giant Salt Marsh. Comment
  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
  SEINET5739095 Image available Galium aparine Carole Meredith 1968-1 11 Contra Costa Roadside bank in forest area, 1.7 miles SE of Moraga on Canyon Road.; Moraga Comment
  JEPS112104  Galium spurium D. G. Kelch 2003-3-21 03 .76 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  CAS-BOT-BC304349  Gamochaeta pensylvanica I. M. Johnston 1917-4-14 1841 Contra Costa Upland Comment
  CAS-BOT-BC200632  Garrya elliptica H. E. McMinn 1925-3-30 1403 Contra Costa Near summit Thornhill Rd and Skyline Blvd. Comment
  UC692508  Garrya elliptica Mary L. Bowerman 1932-1-30 1081 Contra Costa Inner Black Hills Mount Diablo (nw corner of basin of ne fork of Sycamore Creek) Comment
  CAS-BOT-BC200628  Garrya elliptica H. E. McMinn 1925-1-30 1397 Contra Costa Thornhill Gulch, Oak. Hills Comment
  CAS-BOT-BC200631  Garrya elliptica H. E. McMinn 1925-1-30 1398 Contra Costa Thornhill Gulch. Oak. [Oakland] Hills Comment
  UC2029048  Garrya elliptica Barbara Ertter with Linda Vorobik 2000-1-9 16890 Contra Costa Las Trampas Regional Wilderness in East Bay Hills west of Danville. Comment
  POM203166  Garrya fremontii L. S. Rose 1934-2-28 34041 Contra Costa Summit of Mt. Diablo. Comment
  POM300683  Gastridium phleoides Mary L. Bowerman 1931-5-2 798 a Contra Costa Foot of Eagle Point ridge. Mount Diablo. Comment
  CHSC25033  Geranium carolinianum Willis Ball 1975-3-26 512 Contra Costa Contra Loma Regional Park. In area #8. At the base of a large hill ca. 200 yds s of main parking lot at s end of lake. 60 Comment
  CDA4659  Geranium dissectum D. G. Kelch, A. G. Murdock 2003-3-28 3 .089 Contra Costa Carquinez Strait Region; Rodeo - Lone Tree Point. Comment
  JEPS75472  Geranium dissectum P. F. Yorks 1974-4-19 132 Contra Costa ca 1.5 km s Bear Creek Road (on Hampton Road, n of Briones Reservoir); Hampton Road Natural Reserve Comment
  UCD103444  Geranium molle Helen K. Sharsmith 1962-4-18 4956 Contra Costa Reliez Valley Road. 152 Comment
  UC2029180  Geranium purpureum Barbara Ertter with California Botanical Society field trip 2013-4-12 21312 Contra Costa Mount Diablo State Park southeast of Walnut Creek, along east fork Sycamore Creek, roadside of Sycamore Creek road. Comment
  UC1795111  Geranium rotundifolium Barbara Ertter 1996-6-4 14684 Contra Costa Tilden Regional Park in hills E of Berkeley, restoration site NE of junction of Grizzly Peak Boulevard and Golf Course Drive Comment
  RSA34736  Gilia achilleifolia R. C. Rollins 1946-3-25 3045 Contra Costa Sacramento Northern Embarkment, Moraga Canyon, 0.8 miles east of railway tunnel Comment
  RSA67597  Gilia achilleifolia Verne Grant, Alva Grant 1948-5-2 8424 Contra Costa in Bear Creek Canyon, 0.5 miles north of summit and ca. 3.8 miles from Orinda-San Pablo road. Comment
  UC2031458  Gilia achilleifolia subsp. achilleifolia Barbara Ertter with David Gowen 2014-4-12 21716 Contra Costa On north side of Prospectors Gap Road ca. 1 mile east of Mount Diablo summit Comment
  UC691599  Gilia achilleifolia subsp. achilleifolia Mary L. Bowerman 1935-5-8 2970 Contra Costa Muir Area, Mount Diablo Mount Diablo, Muir Area Comment
  UC909027  Gilia achilleifolia subsp. multicaulis Herbert L. Mason 1934-3-31 8053 Contra Costa 11 mi s Marsh Creek Road (on road from Marsh Creek to Livermore); 11 mi s Marsh Creek Road, rd from Marsh Creek to Livermore 609 Comment
  UC1795760  Gilia achilleifolia subsp. multicaulis Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14226 Contra Costa Mt. Diablo southeast of Walnut Creek, serpentine knoll ca 1/2 airmile north of Curry Point, grassland, oaks around knoll. . 487 Comment
  UC691629  Gilia capitata subsp. capitata Mary L. Bowerman 1933-6-7 2263 Contra Costa North Peak Ridge , North Peak Ridge (Mount Diablo) Comment
  JEPS12791  Gilia capitata subsp. staminea Rimo Bacigalupi with G. T. Robbins 1955-5-4 4981 Contra Costa just e Antioch (on sand hills along San Joaquin River front); along San Joaquin River front, e of Antioch 9 Comment
  RSA566427  Gilia capitata subsp. staminea Peter L. Morrell, Donna S. Krause 1993-5-16 239 Contra Costa Contra Costa County, along sides of raod 100m W of 1701 Wilbur Ave, Antioch, betw Southern Pacific tracks and San Joaquin River (0.5 miles W of Hwy 4/160). Comment
  UC932019  Gilia capitata subsp. staminea Verne Grant, Alva Grant 1947-4-13 7925 Contra Costa sand hills by railroad tracks e Antioch; e of Antioch Comment
  RSA14955  Gilia clivorum L. S. Rose 1935-5-16 351 75 Contra Costa Mt. Diablo. Comment
  UC691608  Gilia clivorum Mary L. Bowerman 1935-5-1 2932 Contra Costa West Road 2 mi from entrance (( = North Road), Mount Diablo); Mount Diablo, West Road (=North Road) 182 Comment
  UC691677  Gilia clivorum Mary L. Bowerman 1935-4-19 2858 Contra Costa near Turtle Rock (dry hillside on opposite side of road); Mount Diablo, near Turtle Rock 457 Comment
  UC2027715  Gilia clivorum Barbara Ertter with Stu Garrett 1997-3-29 15524 Contra Costa West side Mount Diablo, Burma Road above North Gate Road. Comment
  UC2027799  Gilia clivorum Barbara Ertter with Mary Bowerman, Lisa Schultheis 1995-3-31 13946 Contra Costa Mount Diablo State Park, steep west-facing bank with outcrops near weir at mouth of Mitchell Canyon Comment
  UC2027812  Gilia clivorum Barbara Ertter with Stu Garrett 1997-3-29 15541 Contra Costa West side Mount Diablo, Mothers Trail. Comment
  UC449815  Gilia tricolor subsp. diffusa Chestnut and Drew 1889-4-16 Contra Costa Clayton Comment
  JEPS85957  Gilia tricolor subsp. tricolor A. L. Grant 1915-3-14 Contra Costa Antioch Comment
  UC335961  Gilia tricolor subsp. tricolor J. G. Lemmon 1878-4-26 Contra Costa side of Mt. Diablo Comment
  JEPS99596  Githopsis diffusa subsp. robusta Mary Bowerman 1978-5-14 Contra Costa Mount Diablo, Back Canyon trail to mine. Comment
  SEINET10464449  Githopsis diffusa subsp. robusta Bowerman 1933-6-7 BOWERMAN 2260 Contra Costa North Peak; Bare rocks by register Comment
  SEINET10464451  Githopsis diffusa subsp. robusta Bowerman 1935-5-3 BOWERMAN 2952 Contra Costa Rock City Ridge (Fossil Ridge): hillside below the Jungle of the Garden Gods 488 Comment
  UC635648  Githopsis specularioides H. L. Mason 1928-4-29 4429 Contra Costa Sycamore Canyon, s slopes of Mt. Diablo Mt. Diablo Comment
  UC691591  Githopsis specularioides Mary L. Bowerman 1935-5-18 3034 Contra Costa Meridian Peak, n of the summit parking area Mount Diablo 1066 Comment
  UC1738825  Glyceria occidentalis Dean W. Taylor 1990-4-10 10675 Contra Costa Byron Hot Springs Road, 1 mile S of Holey Road 24 Comment
  RSA721738  Gnaphalium canescens subsp. beneolens Barbara Ertter, Kristin Ertter 1995-7-11 14469 Contra Costa Pine Creek on west side of Mt. Diablo southwest of Walnut Creek; Diablo Foothills Regional Park Comment
  UCR247431  Gnaphalium stramineum Dean Kelch, Abigail Moore 2009-5-30 09 .317 Contra Costa Carquinez Strait, west of 5th St Prairie, Crockett 75 Comment
  CDA28826  Gnaphalium stramineum D. G. Kelch, Abigail Moore, Jessica Kolman 2009-5-3 9 .317 Contra Costa Carquinez Strait; W of 5th St Prairie, Crockett. 0 Comment
  OBI16390  Grindelia camporum Robert F. Hoover 1966-8-31 9945 Contra Costa 1.5 mi E of Danville, at jctn of Tassajara and Freitas Rds. Comment
  RSA93033  Grindelia camporum F. W. Peirson 1923-7-1 3886 Contra Costa Mt. Diablo Comment
  CHSC99194  Grindelia camporum var. camporum John Dittes 2006-10-26 1416 Contra Costa San Joaquin Valley (foothills near nw edge); ~2.0 air-miles south of Marsh Creek Reservoir Gauging Station, 1.6 air-mile southwest of intersection of Camino Diablo and Vasco Road; Contra Costa Water District's Los Vaqueros Watershed Mitigation Project Area. 67 Comment
  CAS-BOT-BC305220  Grindelia hirsutula Lewis S. Rose 1952-11-26 52020 Contra Costa Pittsburg 3 Comment
  JEPS111071  Grindelia hirsutula Lee Echols 2003-6-17 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
  UC1594186  Grindelia hirsutula Jerry Powell 1992-5-20 1647 Contra Costa Richmond Field Station Comment
  UCD150902  Grindelia hirsutula James A. Neilson Jr. 1972-10-21 3603 Contra Costa Walnut Creek drainage, near mouth of Walnut Creek. Elevation estimated using Google Earth by label maker. 0 Comment
  CAS-BOT-BC305224  Grindelia hirsutula John Thomas Howell 1930-9-28 5495 Contra Costa Liberty School on Marsh Creek Road Comment
  CAS-BOT-BC305235  Grindelia hirsutula L. R. Abrams 1917-9-13 6729 Contra Costa Patterson Pass 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
  UC137040  Guillenia flavescens Katharine Brandegee 1907-5-4 Contra Costa between Antioch and Marsh Creek Comment
  UC691137  Guillenia flavescens Mary L. Bowerman 1935-4-17 2842 Contra Costa 2 mi from West road (=North Rd.) entrance (ridge w of chaparral, immediately e of section line); Mount Diablo 304 Comment
  UC691151  Guillenia flavescens Mary L. Bowerman 1933-4-15 1859 Contra Costa second ridge se Arroyo del Cerro; Mount Diablo Comment
  JEPS54107  Guillenia lasiophylla H. P. Chandler 1900-3-24 Contra Costa Briones Hills Region of Mount Diablo Comment
  UC691126  Guillenia lasiophylla Mary L. Bowerman 1930-6-7 291 Contra Costa Meridian Peak summit Mount Diablo Comment
  CAS-BOT-BC304581  Gutierrezia californica Mary L. Bowerman 1938-11-12 3729 Contra Costa Mount Diablo. Lime Ridge toward crest of hilllside north of break 152 Comment
  UCD132631  Gutierrezia californica Peter Rubtzoff 1954-9-14 1750 Contra Costa Lower San Joaquin River, E of Antioch. Comment
  UC455500  Gutierrezia sarothrae I. J. Condit 1908-8-20 Contra Costa Oakley Comment
  JEPS120272  Hainardia cylindrica Barbara Ertter with David Gowen 2012-6-9 21025 Contra Costa junction of Seaview Trail and road into EBMUD land north of Vollmer Peak,m southeastern Tilden Park in Berkeley Hills 550 Comment
  UCD36026  Hainardia cylindrica Beecher Crampton 1949-6-6 471 Contra Costa Contra Cost County, city of Richmond. 16 Comment
  UC1005829 Image available Hakea oleifolia N. Floy Bracelin 1946-1-20 2864 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS35429  Helenium puberulum John Thomas Howell 1926-1-16 1626 Contra Costa San Leandro Canyon Oakland Hills Comment
  UC566690  Helenium puberulum H. L. Mason 1924-11-23 1162 Contra Costa Las Trampas Creek Comment
  CAS-BOT-BC305322  Helianthella castanea Alice Eastwood 1915-5-30 4475 Contra Costa Mitchel [Mitchell] Canyon, Mt. Diablo Comment
  UC2028316  Helianthemum scoparium Barbara Ertter, Susan D'Alcamo 1998-6-12 16161 Contra Costa Summit Road to top of Mount Diablo. Comment
  CAS-BOT-BC305374  Helianthus annuus Walter Knight 1965-9-7 1163 Contra Costa Antioch sand dunes Comment
  UC697183  Helianthus californicus Mary L. Bowerman 1932-9-17 1581 Contra Costa west fork Donner Canyon (streambed); Mount Diablo Comment
  UC2070513  Helianthus californicus Barbara Ertter 2002-8-24 18034 Contra Costa Lower Perkins Canyon on NE base of Mount Diablo. Comment
  JEPS88686  Helianthus gracilentus Mary L. Bowerman 1932-10-1 1602 Contra Costa Mitchell Canyon Mount Diablo ((1931) burn near stream) Comment
  RSA0029054  Helianthus gracilentus Barbara Ertter 1999-6-12 16722 Contra Costa Knobcone Point Road on south side of Mount Diablo. At head of NE fork of Sycamore Creek. 488 Comment
  UC1795839  Helianthus tuberosus Barbara Ertter 1995-9-30 14526 Contra Costa North bank of Cerrito Creek at end of Yosemite Avenue in El Cerrito, foot of Albany Hill; stonework bank at edge of overgrown sluggish creek. Comment
  SEINET3840820  Heliotropium curassavicum Unknown 2006-8-6 6 .361 Contra Costa Rodeo Creek, Rodeo Creek channel 4 Comment
  UCR197902  Heliotropium curassavicum Beecher Crampton 1949-7-15 486 Contra Costa Below original site of Judsonville, at head of Lone Tree Valley, along Sand Creek, just before coming to Lee Higgins Empire Ranch 114 Comment
  JEPS100176  Helminthotheca echioides A. Langston 2003-8-26 AL 84 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site 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
  RSA455876  Hemizonia E. E. Stanford 1930-9-20 2099 Contra Costa Near Walnut Creek Comment
  UC201230  Hemizonia congesta subsp. lutescens H. M. Hall 1914-9-19 9883 Contra Costa 1 km nw of town on Broadway; San Pablo 18 Comment
  JEPS111722  Hemizonia congesta subsp. luzulifolia D. G. Kelch 2004-7-9 04 .294 Contra Costa Crockett - Carquinez Scenic Drive Carq. Scenic Dr. East of Crockett West of Bull Valley SA 60 Comment
  UC201236  Hemizonia congesta subsp. luzulifolia H. M. Hall 1914-8-23 9858 Contra Costa Richmond Region of San Francisco Bay, Richmond Comment
  UC473563  Hemizonia congesta subsp. luzulifolia John Thomas Howell 1930-9-28 5488 Contra Costa 2 mi from Concord (on road to Walnut Creek) Comment
  CAS-BOT-BC314866  Hemizonia congesta subsp. luzulifolia John Thomas Howell 1925-12-6 1612 Contra Costa Ridge between Redwood Canyon and San Leandro Canyon, Oakland Hills Comment
  CAS-BOT-BC314867  Hemizonia congesta subsp. luzulifolia John Thomas Howell 1955-8-24 30900 Contra Costa Near Diablo Country Club Comment
  CAS-BOT-BC314876  Hemizonia congesta subsp. luzulifolia Joseph Andorfer Ewan; Nesta Ewan 1935-8-23 9338 Contra Costa Wildcat Creek Comment
  CDA6977  Hemizonia corymbosa D. G. Kelch, A. G. Murdock 2004-5-7 4 .179 Contra Costa Carquinez Strait; Canada del Cierbo. Comment
  CDA15271  Hemizonia fitchii G. F. Hrusa, D. Crowe, R. York 1998-7-17 14708 Contra Costa Sacramento Delta; E end of Dow Chemical property, Pittsburg. Comment
  POM360297  Hemizonia fitchii Hattie Benton 1917-09 Contra Costa Mt. Diablo. Comment
  POM299467  Hemizonia fitchii L. S. Rose 1941-10-13 41464 Contra Costa 1 miles E of Walnut Creek. 50 Comment
  RSA137096  Hemizonia luzulifolia J. T. Howell 1955-8-24 30900 Contra Costa Near Diablo County Club, south base of Mt. Diablo. Comment
  RSA94182  Hemizonia luzulifolia F. W. Peirson 1925-11-15 6473 Contra Costa Below Arlington. Comment
  CDA31366  Hemizonia pungens D. G. Kelch 2010-10-29 10 .441 Contra Costa Carquinez Strait; Rankin park just west of Martinez adjacent to parking lot. Comment
  CDA7803  Hemizonia pungens subsp. pungens T. C. Fuller 1961-7-6 7367 Contra Costa East of road, south end of Antioch bridge, Antioch. 0 Comment
  UC2028417  Heracleum maximum Barbara Ertter with John Ginochio and Mary Bowerman 2001-5-8 17634 Contra Costa Northwest flank of Mount Diablo, headwaters of Arroyo del Cerro between Olofson Ridge and Long Ridge Comment
  CAS-BOT-BC310161  Hesperevax caulescens Dr. A. Kellogg; W. G. W. Harford 1868-1-1 419 Contra Costa Antioch Comment
  CAS-BOT-BC167428  Hesperolinon breweri M. K. Curran 1884-1-1 s.n. Contra Costa 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
  CAS-BOT-BC167441  Hesperolinon breweri Mary L. Bowerman 1930-6-22 356 Contra Costa Mitchell Canyon. Mt Diable Comment
  CAS-BOT-BC167442  Hesperolinon breweri Herbert L. Mason 1936-6-14 s.n. Contra Costa Ridge running south of Mount Diablo, head of Marsh Creek Comment
  UC692694  Hesperolinon breweri Mary L. Bowerman 1935-6-15 3137 Contra Costa Eagle Point Ridge w 2632; Mount Diablo 762 Comment
  CAS-BOT-BC167432  Hesperolinon breweri Mrs. K. Brandegee 1907-6-16 s.n. Contra Costa Hills between Anioch and Marsh Creek, on the easterly side of Mt. Diablo Comment
  UC692699  Hesperolinon californicum Mary L. Bowerman 1931-5-21 886 Contra Costa w Cave Point; Mount Diablo 579 Comment
  UC187375  Hesperomecon linearis C. F. Baker 1903-4-25 2802 Contra Costa Antioch Comment
  UC194136  Hesperomecon linearis Edward Lee Greene 1887-4-15 Contra Costa Antioch Comment
  UC579909  Hesperomecon linearis Annetta M. Carter 1933-4-23 298 Contra Costa San Joaquin River, between Antioch Bridge and Antioch Comment
  RSA445543  Hesperomecon linearis H. de Forest 1930-05 s.n. Contra Costa [No location data on label] Comment
  UCD95453  Hesperomecon linearis Annetta M. Carter 1933-4-23 298 Contra Costa above the San Joaquin River, between Antioch Bridge and Antioch. Comment
  SEINET10972529  Heterocodon rariflorum Hall Hall 2205 Contra Costa SAN JACINTO MTNS 5300 Comment
  SBBG21359  Heteromeles arbutifolia V. Haraden 1941-7-18 12 Contra Costa near Nortonville 121 Comment
  JEPS20381  Heterotheca grandiflora Joseph P. Tracy 1932-9-10 10783 Contra Costa e of Pinole (on Franklin Canyon Road); Rodeo Creek 91 Comment
  UC1584840  Heterotheca grandiflora Jerry Powell 1990-3-9 1574 Contra Costa Antioch National Wildlife Refuge Comment
  UC2027745  Heterotheca grandiflora Barbara Ertter 1997-1-5 15435 Contra Costa Ygnacio Valley Road crossing Lime Ridge on northwest side of Mount Diablo. Comment
  RSA23172  Hibiscus californicus I. L. Wiggins 1938-8-15 9006 Contra Costa Banks of Old River branch of San Joaquin River at Highway #4. Comment
  CAS-BOT-BC55300  Hirschfeldia incana John Thomas Howell; Gordon H. True 1972-6-29 48929 Contra Costa Byron Hot Springs Road southeast of Byron. Comment
  JEPS111636  Holocarpha heermannii Andrew G. Murdock 2002-7-20 67 Contra Costa Mount Wanda - Martinez; ; ; crest of Mount Wanda on N side of fire road in large meadow 85 Comment
  JEPS111730  Holocarpha heermannii Dean G. Kelch and Andrew G. Murdock 2004-9-2 04 .329 Contra Costa McEwen Road McEwen Road from Port of Costa - I-4 near summit of Road. Contra Costa County CA. 195 Comment
  UC532123  Holocarpha heermannii David D. Keck 1933-10-28 2605 Contra Costa 4.5 mi s Martinez (on road to Pacheco) Comment
  CAS-BOT-BC325838  Holocarpha heermannii J McMurphy 1909-9-25 s.n. Contra Costa Creek below Alamo Comment
  CAS-BOT-BC325848  Holocarpha heermannii L. S. Rose 1941-10-13 41465 Contra Costa 1 mile east of Walnut Creek 50 Comment
  POM179765  Holocarpha heermannii J. T. Howell 1930-9-28 5499 Contra Costa 6.3 miles from Byron on the Marsh Creek Road. Comment
  POM360677  Holocarpha heermannii Hattie Beuton 1917-09 3287 Contra Costa Mt. Diablo. Comment
  RSA202873  Holocarpha heermannii L. S. Rose 1934-9-9 34462 Contra Costa S slope of Mt. Diablo; 9 miles NE of Danville. Comment
  RSA298252  Holocarpha heermannii Joseph A. Ewan 1933-10-15 8045 Contra Costa South slope of Mt. Diablo 1067 Comment
  UC1795841  Holocarpha heermannii Barbara Ertter, M. L. Bowerman, L. Schultheis, Kevin Hintsa 1995-10-22 14528 Contra Costa Three Springs Trail on northeast side of Mt. Diablo, south of crest of Marsh Creek Rd. southeast of Clayton dried grasslands at base of trail. 304 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-BC320224  Holocarpha macradenia Irja Knight 1979-5-3 3375 Contra Costa In Pinole in a pasture on s.e. corner of Appian Way and I-80 Comment
  CAS-BOT-BC320261  Holocarpha obconica John Thomas Howell 1930-9-28 5500 Contra Costa 6.3 miles from Byron on the Marsh Creek Road Comment
  UC517968  Holocarpha obconica John Thomas Howell 1930-9-28 5501 Contra Costa dry hills along the Marsh Creek Road 5.4 mi from Byron Comment
  UC913074  Holocarpha obconica D. D. Keck and J. Clausen 1933-10-27 2567 Contra Costa 1.6 mi w Byron (1.4 mi from junction with Vasco Road); ; 1.6 mi. W of Byron, 1.4 mi. from jct. w/ Vasco Road, Contra Costa Co. Comment
  CAS-BOT-BC320245  Holocarpha obconica James I. McMurphy 1909-5-21 s.n. Contra Costa Antioch Hills Comment
  CAS-BOT-BC320253  Holocarpha obconica David D. Keck 1933-11-2 2621 Contra Costa Deer Valley, 1/2 mi. S. of road to Brentwood Comment
  JEPS112082  Holodiscus discolor D. G. Kelch 2004-3-12 04 .31 Contra Costa Pinole Valley Hillside and canyon above Wright Road. Off of Pinole Valley Road. Contra Costa County, CA 220 Comment
  JEPS99981  Holodiscus discolor A. Langston 2003-6-12 AL 40 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA449754  Holodiscus discolor Thekla Mohr 1917-07 3255 Contra Costa Mount Diablo Comment
  UC12336  Holodiscus discolor Ivar Tidestrom 1895-6-1 Contra Costa Crockett Comment
  UC691112  Holodiscus discolor Mary L. Bowerman 1930-6-26 376 b Contra Costa Clayton-Livermore Road s of Riggs Canyon Road (Mount Diablo); , Clayton-Livermore Road Comment
  UC691113  Holodiscus discolor Mary L. Bowerman 1935-6-21 3146 Contra Costa Mount Diablo, east fork Arroyo Del Cerro, several hundred yards below the spring Arroyo Del Cerro; Mount Diablo, Arroyo Del Cerro 289 Comment
  SEINET11915774  Holodiscus discolor M. T. Doutt 1930-1 76 Contra Costa Marsh Creek Comment
  UCD36924  Hordeum brachyantherum Beecher Crampton 1956-5-14 3413 Contra Costa 1 mile east of Pacheco, Buchanan Field. Comment
  UC1606308  Hordeum brachyantherum subsp. brachyantherum Barbara Ertter, Chris Thayer 1993-5-7 11689 Contra Costa on Wildcat Canyon Road Hopkins Spring 1/2 mi se Inspiration Point (East Bay Municipal Utilities District land e of Tilden Park); Hopkins Spring, East Bay Municipal Utilities District land 304 Comment
  UC756652  Hordeum brachyantherum subsp. brachyantherum G. L. Stebbins Jr. 1946-6-9 3654 Contra Costa 2 mi E of El Cerrito (near Mira Vista Country Club) Comment
  UC2028961  Hordeum depressum Barbara Ertter with Brad Olson et al. 2000-6-2 17304 Contra Costa Brushy Peak Regional Preserve NE of Livermore, at south base of Brushy Peak. Comment
  CDA15241  Hordeum marinum subsp. gussoneanum G. F. Hrusa, D. Crowe 1998-5-8 14372 Contra Costa Sacramento Delta; Formerly disturbed, low poorly drained depression on Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Dense colony surrounding lowest part of depression. Site now dry, appar. wet earlier, appears alkaline. Annual. Comment
  UC1132529  Hordeum marinum subsp. gussoneanum C. M. Belshaw 1936-5-7 2049 Contra Costa 2 mi s Danville; Mt. Diablo Quad. Comment
  UCD85876  Hordeum marinum subsp. gussoneanum P. B. Kennedy 1929-4-24 s.n. Contra Costa Corner of Franklin Canyon Road near Concord, near Soldiers Monument. Comment
  UC1950125  Hordeum marinum subsp. gussoneanum Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8121 Contra Costa alkali sink W and adjacent to Clifton Court Forebay, ca 15 airmiles SW of Stockton Comment
  CAS-BOT-BC284889  Hordeum murinum subsp. leporinum Alice Eastwood 1921-4-18 10264 Contra Costa Antioch Comment
  UC692425  Hordeum murinum subsp. leporinum Mary L. Bowerman 1933-5-17 2097 Contra Costa branch of Curry Canyon due s Olafson's barn (Mount Diablo); , branch Curry Canyon Comment
  UC697126  Hordeum murinum subsp. leporinum Mary L. Bowerman 1933-5-8 2003 Contra Costa s face Fossil Ridge not far from but out of sight of South Entrance Mount Diablo; , s face Fossil Ridge 289 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
  JEPS112098  Horkelia californica subsp. frondosa D. G. Kelch 2005-5-1 05 .192 Contra Costa Crockett - Edwards Canyon. On shady bank 150 Comment
  UC1606349  Horkelia californica subsp. frondosa Barbara Ertter with Dianne Lake 1991-8-18 10677 Contra Costa e;steep N-facing slope above pilings, ne of Bull Valley staging area Crockett; Carquinez Stsrait Regional Shoreline Comment
  UC70332  Horkelia californica subsp. frondosa Ivar Tidestrom June 1895 Contra Costa Crockett Comment
  UC2062668  Horkelia californica subsp. frondosa Barbara Ertter 2002-8-24 18015 Contra Costa East end of Olympia Trail on NE side of Mount Diablo, at junction with uphill trail near intersection of Marsh Creek Road and Morgan Territory Road. Comment
  CAS-BOT-BC536162  Horkelia californica var. elata Mary L. Bowerman 1938-6-14 3684 Contra Costa Rocky Point Spring, Mount Diablo 701 Comment
  JEPS100182  Hypochaeris glabra G. Smick 2003-3-27 GAS 100 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS36517  Hypochaeris glabra W. L. Jepson 1922-5-23 9668 Contra Costa n slope Mt. Diablo Comment
  UC691452  Hypochaeris glabra Mary L. Bowerman 1931-4-11 691 Contra Costa Pine Canyon 121 Comment
  UC1555372  Hypochaeris radicata Jerry Powell 1988-5-18 1533 Contra Costa w Richmond; Point Molate Comment
  UC1584689  Hypochaeris radicata Jerry Powell 1987-7-14 1506 Contra Costa Point Molate Beach Comment
  SEINET3875275  Iris douglasiana Kaye H. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4959 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough. SE portion of Bethel Slough.; 0 610 Comment
  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
  CDA32813  Isocoma menziesii var. menziesii D. G. Kelch, D. A. Weinstein 2010-11-14 10 .446 Contra Costa Carquinez Strait; Hercules, near San Pablo Bay. 0 Comment
  JEPS78631  Isolepis cernua Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3306 Contra Costa Botany Cove Browns Island, Botany Cove Comment
  UCD133351  Iva axillaris Morris Halperin 1930-5-20 s.n. Contra Costa Hoffman Ranch, Brentwood. Comment
  JEPS41044  Iva axillaris subsp. robustior Rimo Bacigalupi and L. R. Heckard 1965-5-11 9069 Contra Costa w side Brooks Island (sw of Richmond); San Francisco Bay Comment
  CHSC93636  Juglans californica var. hindsii Paul Kirk; Joe Callizo 2001-10-8 9 Contra Costa City of Lafayette Community Park, W side of Las Trampas Creek, 1 m E of backyard property line of home at 615 Burton Rd. 119 Comment
  JEPS21838  Juglans californica var. hindsii Bryce G. Decker 1958-5-17 88 Contra Costa bank of slough 1 mi s Four Corners (se of Concord); former course of Walnut Creek Comment
  JEPS58698  Juglans californica var. hindsii W. L. Jepson 1908-8-16 3087 Contra Costa Walnut Creek Comment
  CAS-BOT-BC102303  Juglans hindsii D. E. Stone; B. L. Stone 2004-7-9 4286 Contra Costa Just inside entrance to northern perimeter of Mount Diablo State Park, at terminus of Mitchell Canyon Rd south of 172 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
  RSA0027709  Juncus articulatus Barbara Ertter 1996-9-19 15300 Contra Costa Antioch Marina, edge of bay in Dow Marsh lands. Comment
  CDA15236  Juncus balticus G. F. Hrusa, D. Crowe 1998-5-8 14367 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg. Comment
  JEPS112446  Juncus balticus D. G. Kelch 2003-8-13 03 .108 Contra Costa Martinez Marsh 0 Comment
  JEPS112453  Juncus balticus D. G. Kelch 2005-3-25 05 .73 Contra Costa Hercules - Carbon Carbon Road near Route 4. 50 Comment
  UC1818994  Juncus balticus Barbara Ertter, Mary Bowerman et al. 1995-5-7 14030 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, wet ground around small pond west of road in grassy flat. Comment
  JEPS111070  Juncus bufonius var. bufonius Lee Echols 2003-6-3 s.n. Contra Costa N of Lark Drive in central portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  UC691986  Juncus bufonius var. congestus Mary L. Bowerman 1932-11-26 1671 Contra Costa Mount Diablo, Boulevard Spring (North Road) Boulevard Spring; Mount Diablo, Boulevard Spring Comment
  JEPS111067  Juncus bufonius var. congestus Lee Echols 2003-4-15 s.n. Contra Costa S of Lark Drive and N of EPA Building, within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  CDA29782  Juncus occidentalis D. G. Kelch, Troy MacGregor 2009-5-1 9 .262 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  JEPS112437  Juncus patens D. G. Kelch 2004-5-7 04 .200 Contra Costa Ca ada del Cierbo Ca ada del Cierbo 40 Comment
  HSC14067  Juncus phaeocephalus Leo Koch 1940-6-5 1004 Contra Costa Near highway, 2 mi. S of San Rafael ferry dock Comment
  SEINET6174583  Juncus phaeocephalus L. Koch 1940-6-5 1004 b Contra Costa Two milees south of San Rafael Ferry Dock Comment
  JEPS67063  Juncus phaeocephalus var. paniculatus W. L. Jepson 1918-6-15 7675 Contra Costa Wild Cat Creek Comment
Read comments Jul 28 2008
  JEPS112452  Juncus tenuis D. G. Kelch 2005-4-15 05 .134 Contra Costa Rodeo Creek East-West canyon feeding into Rodeo Creek 120 Comment
  UC1157920  Juncus xiphioides Olive Dyer 1936-9-18 444 Contra Costa near Alvarado Park; Wildcat Canyon Comment
  UC2029169  Juncus xiphioides Barbara Ertter 2000-7-16 17407 Contra Costa Pine Creek on WNW base of Mount Diablo Comment
  UC691979  Juncus xiphioides Mary L. Bowerman 1933-6-21 2337 Contra Costa Donner Canyon Mount Diablo 335 Comment
  UC1818996  Juncus xiphioides Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14630 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
  JEPS48340  Juniperus californica W. L. Jepson 2642 Contra Costa head of Mitchell Creek Mt. Diablo (near saddle of divide); , head of Mitchell Creek Comment
  UC77  Juniperus californica Harley P. Chandler 1901-4-5 980 A Contra Costa Mt. Diablo Comment
  UC78  Juniperus californica Edw. L. Greene 1892-6-20 Contra Costa Mt. Diablo Comment
  UC81  Juniperus californica A. Kellogg 78 Contra Costa Mt. Diablo Comment
  SEINET10531635  Juniperus californica Joseph A. Ewan 1933-10-15 Ewan 8038 Contra Costa Scattered but not uncommon on rock outcrops of SW slope, Mt. Diablo. 1065 Comment
  SEINET13289845 Image available Juniperus californica L. S. Rose 1934-1 Contra Costa Mt. Diablo Comment
  JEPS11127  Keckiella corymbosa W. L. Jepson 1920-8-12 9073 Contra Costa very summit Mt. Diablo Comment
  CDA21464  Kochia scoparia C. Thayer, Erin McDermott 2006-8-23 082306 a Contra Costa Antioch, NW corner of Deer Valley Rd. and Lone Tree Way. Comment
  UC692396  Koeleria macrantha Mary L. Bowerman 1935-5-22 3036 Contra Costa Eagle Point ridge, canyon at n end which heads into saddle w of Twin Peaks, little above the canyon bottom Mount Diablo; , Eagle Point ridge 304 Comment
  UCD85839  Koeleria macrantha P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  SEINET10607073  Koeleria macrantha Virginia E. Long 1933-6-14 Long 223 a Contra Costa Mt. Diablo. On top of grassy ridge between Curry Cave trail canyon & W. fork. 457 Comment
  CAS-BOT-BC273611  Koeleria pyramidata Mary L. Bowerman 1933-6-14 2274 Contra Costa Mount Diablo. Curry-Cave canyon: Ridge between two main forks, at north end of flat at upper end Comment
  CAS-BOT-BC273612  Koeleria pyramidata Mary L. Bowerman 1932-4-16 1354 Contra Costa Mount Diablo. Eagle Point ridge above Twin Peaks (1682 point) Comment
  UC691779  Lactuca serriola Mary L. Bowerman 1933-9-3 2420 Contra Costa spring ne Meridian-North saddle (below North Peak ridge); Mount Diablo Comment
  UC691780  Lactuca serriola Mary L. Bowerman 1932-9-24 1591 Contra Costa ridge running w from Twin Peaks; Mount Diablo 335 Comment
  CAS-BOT-BC340540  Lactuca serriola John Thomas Howell; Gordon H. True 1972-7-29 48918 Contra Costa On Byron Hot Springs Road southeast of Byron Comment
  UCR66430  Lactuca virosa J. T. Howell 1943-8-22 19310 Contra Costa San Francisco Bay Region/Coast Range, near head of San Leandro Creek Canyon 244 Comment
Read comments Jul 7 2009
  CAS-BOT-BC341473  Lagophylla ramosissima James I. McMurphy 1909-5-21 s.n. Contra Costa Antioch Comment
  JEPS128773  Lamarckia aurea Kevin Hintsa 2000-6-5 Contra Costa 3101 Finley Road at SE base of Mount Diablo. Comment
  JEPS99544  Lamium amplexicaule Mary Bowerman 1991-4-13 Contra Costa Mount Diablo. Frog Pond fire road between Sloan Rd. (Curry Canyon Rd.) and Sheepherder Spring & Pond. Comment
  CAS-BOT-BC412725  Lastarriaea coriacea James McMurphy 1909-5-20 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC337974  Lasthenia californica Alice Eastwood 1923-5-4 11688 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC337980  Lasthenia californica James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  JEPS106453  Lasthenia conjugens Barrett Anderson with Thomas Scofield 1995-4-25 4553 Contra Costa Along Hwy 4 approx. 2.38 km E of Interstate 80--Hwy 4 interchange near Rodeo, along Rodeo Creek. Comment
  UC33073  Lasthenia conjugens Edw. L. Greene 1887-4-17 Contra Costa Antioch Comment
  UC650552  Lasthenia fremontii Ira L. Wiggins 1930-4-17 4579 Contra Costa .25 mi. s Byron Comment
  CAS-BOT-BC353332  Lasthenia fremontii Peter H. Raven; H. L. Mason; et al. 1957-4-4 10587 Contra Costa Vernal flats 3 miles S of Byron. Comment
  POM181483  Lasthenia fremontii I. L. Wiggins 1930-4-17 4579 Contra Costa 1/4 mi. S. of Byron Comment
  RSA107033  Lasthenia fremontii L. S. Rose 1956-4-16 56016 Contra Costa 2 miles SE of Byron 8 Comment
  RSA114067  Lasthenia fremontii H. L. Mason 1952-4-14 14260 Contra Costa 3.5 miles S of Byron Comment
  CAS-BOT-BC352774  Lasthenia glabrata subsp. glabrata Paul F. Covel 1936-4-19 232 Contra Costa Las Trampas Canyon Comment
  SBBG122952  Lasthenia glabrata subsp. glabrata B. Ertter, C. Thayer 1993-5-7 11705 Contra Costa ca. 0.5 mi N of Vollmer Peak, East Bay Municpal Utilities District land E of Tilden Park 457 Comment
  UC697159  Lasthenia glabrata subsp. glabrata Mary L. Bowerman 1933-4-15 1865 Contra Costa Comment
  UC135156  Lasthenia gracilis C. F. Baker 1903-4-25 2801 Contra Costa Antioch Comment
  SD5689  Lasthenia microglossa K. Curran May 1884 Contra Costa Antioch. Comment
Read comments Mar 10 2008
  UC2070483  Lasthenia microglossa Barbara Ertter 2003-3-28 18116 Contra Costa Round Valley Regional Preserve, ca 1 mile west of trailhead. Comment
  CAS-BOT-BC366304  Lasthenia minor Alice Eastwood 1914-3-14 3830 Contra Costa Byron Springs Comment
  UC1301068  Lasthenia minor Helen K. Sharsmith 1963-4-7 5297 Contra Costa near Byron 7 Comment
  UC191034  Lasthenia minor Katharine Brandegee 1904-5-5 Contra Costa near Antioch; Judsonville Comment
  JEPS9811  Lasthenia minor Anna E. Ehlers 1920-4-18 557 Contra Costa near Mt. Diablo; Pine Canyon Comment
  CAS-BOT-BC205013  Lathyrus jepsonii var. jepsonii Walter Knight; Brian Atwater; Joanne Dean; Rolf Bensler; Bryan Mortensen 1979-4-13 3362 Contra Costa Crooked Slough, Browns Island Comment
  POM19744  Lathyrus vestitus subsp. vestitus C. F. Baker 1903-4-28 2944 Contra Costa Mitchells Canyon, Mt. Diablo. Comment
  JEPS55360  Lathyrus vestitus var. vestitus W. L. Jepson 1922-7-9 9733 Contra Costa El Cerrito, Richmond Comment
  UC692237  Lathyrus vestitus var. vestitus Mary L. Bowerman 1931-4-19 742 Contra Costa above lower Deer Flat Mount Diablo, Deer Flat Comment
  UC1315007  Layia chrysanthemoides R. F. Hoover 1967-4-28 10506 Contra Costa Byron Hot Springs Comment
  UC2042770  Layia gaillardioides Barbara Ertter with Chris Thayer 1993-5-7 11706 Contra Costa Ca 1/2 mile north of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land east of Tilden Park. Comment
  UC697168  Layia gaillardioides Mary L. Bowerman 1935-4-17 2847 Contra Costa west road, = North Rd., 2 mi from entrance Mount Diablo 335 Comment
  UC89217  Layia gaillardioides K. Brandegee May 1884 Contra Costa Mt. Diablo Comment
  JEPS13426  Layia glandulosa R. F. Hoover 1937-5-14 2115 Contra Costa Comment
  RSA394722  Layia glandulosa subsp. glandulosa Annetta Carter 1933-4-23 300 Contra Costa Above the San Joaquin River, between Antioch Bridge and Antioch. Comment
  CAS-BOT-BC327243  Layia hieracioides Mrs. Brandegee 1883-5-1 s.n. Contra Costa Antioch Comment
  UC905616  Layia hieracioides David D. Keck 1941-6-5 5307 Contra Costa 1/4 mi w of e portal of Broadway Tunnel Fish Creek Rd.; Berkeley Hills Comment
  CAS-BOT-BC370667  Layia platyglossa C. F. Baker 1903-5-28 2874 Contra Costa Antioch Comment
  CAS-BOT-BC377908  Layia platyglossa L. R. Abrams 1921-5-25 8011 Contra Costa near summit of Mt. Diablo Comment
  SEINET3387416 Image available Layia platyglossa Lewis S. Rose 1933-4-17 33093 Contra Costa Antioch, California Comment
  UC30669  Layia platyglossa Harley P. Chandler 1901-4-5 992 Contra Costa Mt. Diablo Comment
  UC691489  Layia platyglossa Mary L. Bowerman 1933-5-10 2063 Contra Costa ridge below Indian Ceremonial Spring; Mount Diablo 914 Comment
  CAS-BOT-BC370666  Layia platyglossa H. M. Hall 1901-4-5 1750 Contra Costa Mt. Diablo near summit Comment
  CDA33885  Layia platyglossa D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .104 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  SEINET10759869  Layia platyglossa John T. Middleton 1936-4-18 Middleton 143 Contra Costa Deer Valley, Ca. Comment
  CDA9564  Lemna gibba D. G. Kelch 2007-6-17 7 .463 Contra Costa Carquinez Strait; Fernandez Ranch, Muir Land Trust. Franklin Canyon. 0 Comment
  UC1607502  Lemna minor Barbara Ertter, Brad Olson 1991-9-28 10850 Contra Costa between Orinda and El Sobrante (s end of San Pablo Reservoir); San Pablo Reservoir 97 Comment
  UC2029080  Lemna minor Barbara Ertter 2000-7-16 17400 Contra Costa Lower Pine Creek in Diablo Foothills Regional Park. Comment
  POM181451  Lemna minuta I. L. Wiggins 1930-4-18 4607 Contra Costa Jersey Island. Comment
  JEPS111002  Lepechinia calycina W. L. Jepson Jun 1909 Contra Costa Mt. Diablo Comment
  RSA248647  Lepechinia calycina Bonnie C. Templeton 1962-6-10 s.n. Contra Costa Mt Diablo. Comment
  SBBG21163  Lepechinia calycina V. Haraden 1941-7-18 11 Contra Costa near Nortonville 121 Comment
  UC691411  Lepechinia calycina Mary L. Bowerman 1932-9-3 1532 Contra Costa Mount Diablo, Muir area: Burn (1931) Comment
  CAS-BOT-BC88706  Lepidium acutidens Lewis S. Rose 1933-3-29 33041 Contra Costa Nortonville. Comment
  UC2070552  Lepidium coronopus Barbara Ertter 2002-5-11 17839 Contra Costa Southwest base of Mount Diablo, base of Emmons Canyon fire road. Comment
  CHSC67910  Lepidium dictyotum var. acutidens James D. Jokerst 1989-3-29 3068 Contra Costa 0.25 mi S of Byron Hot Springs NE of Livermore. Comment
  CHSC67911  Lepidium dictyotum var. acutidens James D. Jokerst 1989-3-29 3069 Contra Costa 0.25 mi S of Byron Hot Springs NE of Livermore. Comment
  JEPS21356  Lepidium dictyotum var. acutidens J. Burtt Davy May 1898 Contra Costa Livermore Valley Mount Diablo Region Comment
  POM224388  Lepidium dictyotum var. acutidens Annetta Carter 1935-3-10 753 Contra Costa Kirker Pass road, south of jct with Nortonville Road. 122 Comment
  CDA24908  Lepidium dictyotum var. dictyotum Jim Jokerst 1989-3-29 3073 Contra Costa Byron Hot Springs area northeast of Livermore, adjacent to pipeline on terrace south of ephemeral creek. 0 Comment
  UCD115342  Lepidium didymum Collector unknown Date unknown s.n. Contra Costa Jersey Island. 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
  UC2070650  Lepidium latifolium Barbara Ertter 2002-8-24 18021 Contra Costa Dunn Creek south of Mount Diablo Mine property on NE base of Mount Diablo. Comment
  CAS-BOT-BC89766  Lepidium latipes Barrett Anderson 1987-4-29 3483 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD. 125 Comment
  POM300576  Lepidium latipes Mary L. Bowerman 1933-4-15 1846 Contra Costa Canyon S of Arroyo del Cerro Comment
  CAS-BOT-BC89891  Lepidium nitidum Alice Eastwood 1914-3-14 s.n. Contra Costa Byron Springs. Comment
  UC796578  Lepidium nitidum Reed C. Rollins 1946-3-25 3044 Contra Costa Mount Diablo, western slope Mount Diablo Comment
  UC796583  Lepidium nitidum Reed C. Rollins 1946-3-25 3042 Contra Costa Mount Diablo, western slope Mount Diablo Comment
  RSA537663  Lepidium nitidum var. oreganum Barbara Ertter, Jim Jokerst, D. Magney 1989-4-5 8127 Contra Costa SE Contra Costa: alkali sink W and adjacent to Clifton Court Forebay, ca 15 air miles SW of Stockton 0 Comment
  JEPS25136  Lepidium strictum G. Thomas Robbins 1959-4-26 4006 Contra Costa about 1 mi ne Giant (and about 0.25 mi n of San Pablo Oil Tank Farm) 7 Comment
  UCD64056  Leptochloa fusca subsp. uninervia Chandler Jensen 1957-11-7 Contra Costa Vasco road, about 5 mi. south of Brentwood. Comment
  UC2031424  Leptosiphon androsaceus Barbara Ertter 1991-6-1 10085 Contra Costa Las Trampas Regional Wilderness in hills W of Danville, Elderberry Trail ca. 1/2 mi from trailhead Comment
  POM300972  Leptosiphon androsaceus Mary L. Bowerman 1933-4-15 1861 Contra Costa Second ridge southeast of Arroyo del Cerro 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
  CHSC40750  Leptosiphon grandiflorus J. G. Lemmon 1938-6-14 12094 Contra Costa Mount Diablo. Comment
  POM65854  Leptosiphon liniflorus C. F. Baker 1903-4-27 2864 Contra Costa Byron. 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
  UC88011  Lessingia nemaclada K. Brandegee 1883 Contra Costa Antioch Comment
  UC221462  Lessingia pectinata var. tenuipes Dr. Edward Palmer Aug 17 1892-Aug 20 1892 2678 Contra Costa Byron Hot Springs Comment
  UC1051216  Leucospermum nutans N. Floy Bracelin 1945-5-6 2968 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS481  Leymus X multiflorus W. L. Jepson 1937-7-2 18445 Contra Costa swale 1/2 mi w Crockett Comment
  UCD92455  Leymus X multiflorus Beecher Crampton 1956-5-14 3424 Contra Costa 3.2 miles W of Martinez, on the road to Crockett. Above Suisun Bay. Comment
  CAS-BOT-BC272213  Leymus triticoides Mary L. Bowerman 1935-6-28 3159 Contra Costa Inner Black Hills west of the meridian, Mount Diablo Comment
  JEPS100066  Ligustrum ovalifolium G. Smick 2003-5-30 GAS 196 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC814388  Lilaea scilloides Lewis S. Rose 1940-4-30 40257 Contra Costa 6 mi s Antioch 30 Comment
  CAS-BOT-BC451580  Lilaea scilloides Walter Knight 1977-6-12 s.n. Contra Costa Morgan Territory land bank (se. of Mt. Diablo at head of Marsh Creek) 585 Comment
  RSA0029782  Lilaea scilloides Barbara Ertter, Alan Prather 2003-6-7 18191 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, pond NE of main trailhead. Comment
  JEPS19593  Limnanthes douglasii H. M. Evans Apr. 1901 Contra Costa Mt. Diablo Comment
  UCD116496  Limnanthes douglasii William B. Davis 1960-3-26 3 Contra Costa South Scenic Boulevard, Mt. Diablo. 182 Comment
  UC1057450  Limnanthes douglasii subsp. nivea G. Thomas Robbins 1937-4-25 150 Contra Costa near Walnut Creek Comment
  UCD170113  Limnobium laevigatum R. Breckenridge; K. Filippini 2010-10-1 s.n. Contra Costa Sacramento/San Joaquin Delta. Bradford Island. Comment
  CDA39643  Limonium sinuatum D. G. Kelch 2011-10-23 11 .840B Contra Costa Carquinez Strait Region; Martinez Waterfront Park. Comment
  UC23376  Linanthus androsaceus Brewer 1862-5-22 1139 Contra Costa ne of Mt. Diablo (hills s of Coal Mines) Comment
  UC23377  Linanthus androsaceus Harley P. Chandler 1901-4-5 954 Contra Costa Mt. Diablo Comment
  UC880306  Linanthus androsaceus Lewis S. Rose 1940-4-30 40253 Contra Costa 8 mi se Clayton; Marsh Creek 30 Comment
  UC908685  Linanthus androsaceus Herbert L. Mason 1928-4-15 4349 Contra Costa e end Moraga Ridge Comment
  UC691642  Linanthus bicolor Mary L. Bowerman 1933-5-8 2034 Contra Costa Rock City; Mount Diablo Comment
  UC1618093  Linanthus ciliatus Donald G. Nelson 1937-4-29 518 Contra Costa Road from Pinole south towards Alhambra Road Pinole Comment
  UC23464  Linanthus ciliatus Brewer 1862-5-22 1138 Contra Costa Comment
  UC1047918  Linanthus liniflorus Kay H. Beach 1941-4-30 1083 Contra Costa near Byron Hot Springs Station Comment
  SEINET8729347 Image available Linanthus liniflorus Herbert L. Mason 1952-1 14265 Contra Costa 3.5 miles south of Eyron Comment
  UC691638  Linanthus pygmaeus subsp. continentalis Mary L. Bowerman 1933-5-25 2178 Contra Costa w end of s-face Oyster Ridge 396 Comment
  SJSU5759  Lithophragma affine M. C. Maloney 1971-4-20 Contra Costa Morgan Territory Rd, 6 mi from Marsh Cr Rd Comment
  UC11867  Lithophragma affine W. H. Brewer 1862-5-23 1146 Contra Costa SE of Monte Diablo Comment
  SEINET5557311  Lithophragma affine H. S. Gentry 1931-1 47 Contra Costa Collected near Buckle Point Mt. Diablo. Comment
  UC2028406  Lithophragma bolanderi Barbara Ertter with Christopher Baysdorfer 1998-5-10 16109 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, along Ohlone Trail Comment
  UC11926  Lithophragma cymbalaria J. Burtt Davy 1895-4-7 906 Contra Costa Antioch Comment
  CDA945  Lithophragma heterophyllum D. G. Kelch 2006-5-4 6 .124 Contra Costa Carquinez Strait; Vaca Canyon, on North facing road cut/bank along Alhambra Valley Road. Comment
  UC2031413  Lobularia maritima Barbara Ertter with David Gowen 2006-4-14 18666 Contra Costa Lime Ridge Open Space (City of Concord) at NW foot of Mt Diablo, grassland along Ohlone Trail SE of Ygnacio Valley Road Comment
  CAS-BOT-BC342121  Logfia filaginoides Alice Eastwood 1923-5-4 11724 Contra Costa Mt Diablo Comment
  UC32010  Logfia filaginoides Harley P. Chandler 1901-4-5 963 Contra Costa Mt. Diablo Comment
  JEPS33573  Logfia gallica W. L. Jepson 1943-5-27 20839 Contra Costa Black Hills Mt. Dialo, Black Hills Comment
  UCD38198  Logfia gallica Beecher Crampton 1950-6-20 595 Contra Costa 1 mile north of Richmond. Triangle Court. Comment
  CDA15269  Lolium multiflorum G. F. Hrusa, D. Crowe 1998-5-8 14400 Contra Costa Sacramento Delta; Moist, areas within disturbed grasslands at E end of Dow Chemical property. Rare form with branched inflorescence. Perennial? Comment
  UC1948972  Lolium multiflorum William J. Ferlatte, L. Maynard Moe 1970-4-27 1221 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC691470  Lomatium californicum Mary L. Bowerman 1933-4-22 1886 Contra Costa Curry-Cave Point Trail Mount Diablo 411 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
  JEPS111613  Lomatium dasycarpum D. G. Kelch 2004-4-25 04 .126 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Scenic Dr. 30 Comment
  JEPS17116  Lomatium macrocarpum M. K. Curran May 1885 Contra Costa Antioch Comment
  UC691428  Lomatium macrocarpum Mary L. Bowerman 1933-4-26 1906 Contra Costa ridge e.-s.e of the peak North Peak; Mt. Diablo 579 Comment
  UC691771  Lomatium macrocarpum Mary L. Bowerman 1935-5-1 2945 Contra Costa w. rd. 4.4 mi. from entrance Mt. Diablo 381 Comment
  UC2062645  Lomatium utriculatum Barbara Ertter with David Gowen, Mike Park 2004-4-13 18358 Contra Costa Black Diamond Mines Regional Park south of Pittsburg, upper part of N-facing slope below Black Diamond Trail, opposite Rose Hill Cemetery. Comment
  UC566798  Lomatium utriculatum H. L. Mason 1929-3-29 5138 Contra Costa above, Marsh Creek Road Clayton Comment
  UC2031434  Lonicera hispidula Barbara Ertter 1991-6-1 10070 Contra Costa Las Trampas Regional Wilderness in hills W of Danville Comment
  CAS-BOT-BC240418  Lonicera hispidula John Thomas Howell 1925-9-12 1433 Contra Costa Oakland Hills Comment
  CDA28994  Lonicera hispidula var. vacillans D. G. Kelch, Suzanne Latham, Matt Beyers 2009-6-3 9 .33 Contra Costa East Bay.; El Sobrante Ridge at end of Silver Belt Dr. on Miocene chert outcrop. Comment
  RSA455187  Lonicera hispidula var. vacillans Thekla Mohr 1917-07 s.n. Contra Costa Mount Diablo Comment
  JEPS12856  Lonicera subspicata var. denudata Mary L. Bowerman 1931-6-4 922 Contra Costa summit Meridian Peak; Mt. Diablo Comment
  JEPS99523  Lonicera subspicata var. denudata Mary L. Bowerman 1975-6-7 Contra Costa Mount Diablo. By Big Spring fire rd. E of Murchio Gap. Comment
  UC691484  Lonicera subspicata var. denudata Mary L. Bowerman 1935-5-25 3074 Contra Costa Rhine Canyon Mount Diablo 944 Comment
  CAS-BOT-BC200901  Lotus Elsie M. Zeile 1921-8-6 s.n. Contra Costa Shepherd's Canon [Canyon] Comment
  CDA15230  Lotus corniculatus G. F. Hrusa, D. Crowe 1998-5-8 14359 Contra Costa Sacramento Delta; Adjacent to Dow Chemical plant at Pittsburg. Comment
  UC1594184  Lotus corniculatus Jerry Powell 1992-6-17 1650 Contra Costa Richmond Field Station Comment
  UC1795754  Lotus corniculatus Barbara Ertter, Kristin Ertter 1995-7-11 14473 Contra Costa Sulfur Spring on Pine Cr, Diablo Foothills Regional Park SW of Walnut Creek, marshy wet ground. 121 Comment
  UC69633  Lotus junceus var. biolettii Jos. Burtt Davy 1895-1 Contra Costa Moraga Pass Comment
  UC692538  Lotus scoparius Mary L. Bowerman 1932-9-24 1589 Contra Costa ridge running w from Twin Peaks; Mount Diablo 335 Comment
  UC1795732  Lotus scoparius var. scoparius Barbara Ertter, Brad Olson 1994-5-7 12761 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  JEPS18165  Lotus wrangelianus Rimo Bacigalupi with G. T. Robbins 1956-5-11 5639 Contra Costa 1.3 mi e Pinole (between State Hwy 4 (Franklin Canyon Rd) and Santa Fe Ry right-of-way, 0.25 mi e of jct with U.S. Hwy 40) 22 Comment
  JEPS55832  Lotus wrangelianus W. L. Jepson 1922-5-11 9636 Contra Costa North Berkeley Hills Comment
  UC15709  Lotus wrangelianus State Survey 1800-1 1166 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC478075  Ludwigia Walter Knight 1978-9-28 3277 Contra Costa Browns Island, Botany Cove Comment
  CAS-BOT-BC478118  Ludwigia Walter Knight 1978-10-11 3325 Contra Costa Browns Island, Point Emmet Comment
  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
  POM10982  Lupinus albifrons var. albifrons C. F. Baker 1903-4-25 2823 Contra Costa Antioch. Comment
  SEINET5766808 Image available Lupinus albifrons var. albifrons A. A. Heller 1908-1 8887 Contra Costa Antioch 12 Comment
  UC692521  Lupinus albifrons var. albifrons Mary L. Bowerman 1931-4-25 785 Contra Costa between junction of one-way roads and top Meridian Peak summit (Mount Diablo); , Meridian Peak summit 1158 Comment
  UC692573  Lupinus albifrons var. albifrons Mary L. Bowerman 1931-4-5 676 Contra Costa below Gregory Ranch Mount Diablo (Mt. Diablo) Comment
  CAS-BOT-BC201378  Lupinus albifrons var. albifrons Charles Piper Smith 1947-11-10 47710 Contra Costa Crow Creek Canyon Road - San Ramon. Field 0.9 miles southwest Comment
  UC2043258  Lupinus albifrons var. collinus Barbara Ertter with Dianne Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14674 Contra Costa Point Molate Navel Fuel Depot north of San Rafael bridge, edge of San Francisco Bay. Comment
  JEPS25126  Lupinus arboreus G. Thomas Robbins 1959-4-18 3995 Contra Costa near and n Pt. Richmond (above Western Drive, western slopes of the Potrero Hills, Richmond); Richmond, near and n of Pt. Richmond 7 Comment
  JEPS112354  Lupinus bicolor Dean G. Kelch and Andrew G. Murdock 2004-3-12 04 .029 Contra Costa Pinole Valley, County: Contra Costa; Hillside and canyon above Wright Road. Off of Pinole Valley Road. Contra Coasta County, CA. Comment
  JEPS112414  Lupinus bicolor Dean G. Kelch and Andrew G. Murdock 2005-4-15 05 .146 Contra Costa Rodeo Creek; county: Contra Costa; EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump). Comment
  UC614847  Lupinus bicolor Beryl O. Schreiber 1932-3-27 164 Contra Costa near Antioch; near Antioch Comment
  UC692567  Lupinus bicolor Mary L. Bowerman 1931-4-4 671 Contra Costa West Road just w Turtle Rock, Mount Diablo (= North Road, Mount Diablo); Mount Diablo, just w of Turtle Rock Comment
  UC762917  Lupinus bicolor R. F. Hoover 1935-3-10 306 Contra Costa Antioch Comment
  SEINET3134686  Lupinus bicolor L. S. Rose 1942-4-23 42013 Contra Costa Walnut Creek Comment
  UC2028255  Lupinus bicolor Barbara Ertter with Gary Schoolcraft 1996-4-7 14573 Contra Costa Point San Pablo in west Richmond, crest of road to yacht harbor, coastal grassland along ridge, scraped roadbed to tower 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-BC187856  Lupinus chamissonis John Thomas Howell 1932-9-17 10757 Contra Costa Clay Flats, San Pablo Avenue, Richmond Comment
  CAS-BOT-BC187857  Lupinus chamissonis John Thomas Howell 1926-12-27 2272 Contra Costa 1.5 miles S of Oakley Comment
  POM23955  Lupinus densiflorus var. aureus Harriet Ann Walker 1911-7-8 2526 Contra Costa Near Point Isabel, east shore of San Francisco Bay. Comment
  SEINET10485248  Lupinus densiflorus var. menziesii Walker 1911-7-8 Walker 2526 Contra Costa Near point isabel, e shore of san francisco bay. Growing in sand banks along Railway. Fls bright yellow. Comment
  CDA6113  Lupinus formosus D. G. Kelch 2007-5-12 7 .289 Contra Costa Carquinez Strait; Franklin Ridge, S of Hwy 4 at McEwen Rd. Comment
  JEPS107076  Lupinus formosus Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14674 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay Comment
  UCD107777  Lupinus formosus L. S. Smith 1916-5-10 s.n. Contra Costa Grand View Terrace - San Pablo. 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
  JEPS128772  Lupinus latifolius Kevin Hintsa 2000-6-30 Contra Costa Oyster Point Trail east of Oyster Point (=newly worked section of trail), Mount Diablo State Park. 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
  UC201015  Lupinus microcarpus var. densiflorus Katharine Brandegee 1918-6-16 Contra Costa near Virgorit Powder Works; near Vigorit Powder Works Comment
  UC73242  Lupinus microcarpus var. densiflorus Miss Carlotta Case July, 1904 Contra Costa Muir Station Comment
  UC1562540  Lupinus microcarpus var. microcarpus Barbara Ertter with Elizabeth Neese 1988-4-24 7453 Contra Costa between and parallel to Nortonville and Somersville roads Black Diamond Mines Regional Preserve sw Antioch; Black Diamond Mines Regional Preserve Comment
  UC201035  Lupinus microcarpus var. microcarpus Katharine Brandegee 1918-6 Contra Costa Richmond Annex Comment
  UC201099  Lupinus microcarpus var. microcarpus Katharine Brandegee Contra Costa Richmond Annex Comment
  UC692572  Lupinus microcarpus var. microcarpus Mary L. Bowerman 1931-4-4 657 Contra Costa North Road 4.5 mi from North Gate Mount Diablo (bank above road); Mount Diablo Comment
  UC1301168  Lupinus nanus Helen K. Sharsmith 1962-4-18 4960 Contra Costa near Canyon; San Francisco Bay Region 152 Comment
  UC2028033  Lupinus nanus Barbara Ertter 1998-4-4 15944 a Contra Costa Shell Ridge Open Space northwest of Mount Diablo, SE of Indian Valley School. Comment
  UC2028116  Lupinus nanus Barbara Ertter with Richard K. Brummitt 1998-5-6 16093 Contra Costa :ower Donner Canyon on north base of Mount Diablo, Hetherington Trail upstream from Donner Cabin. Comment
  UCD109076  Lupinus nanus P. B. Kennedy Date Unknown 1311 Contra Costa Grand View Terrace - Richmond District. Comment
  UCD109334  Lupinus pachylobus A. A. Heller 1913-12-9 11150 Contra Costa hills eight miles north of Oroville near the western base of Table mountain. The type was collected by Greene on the 'Briones Hills, east of San Pablo Creek, Contra Costa County, California. Comment
  SEINET12162895  Lupinus propinquus W. Knight, Knight, I. 1982-1 4459 Contra Costa Tilden Reginoal Park, Berkeley, Comment
  UC2987  Luzula comosa W. H. Brewer 1862-5-23 1148 Contra Costa se Monte Diablo; se of Monte Diablo 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
  JEPS100046  Luzula macrantha G. Smick 2003-4-8 GAS 130 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site Comment
  UC2062431  Luzula macrantha Barbara Ertter with David Gowen 2013-4-9 21309 Contra Costa Mount Diablo State Park southeast of Walnut Creek, Sulfur Spring/Devils Slide Trail southeast of Curry Point. Comment
  UC1157921  Luzula subsessilis Olive Dyer 1937-4-4 252 Contra Costa Wildcat Canyon, 1/4 mi above end of road, N end of Canyon Comment
  UC1178022  Lythrum californicum Herbert L. Mason 1955-7-14 14636 Contra Costa 1/2 mi e of Antioch Bridge Comment
  UC1619946  Lythrum californicum Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10695 Contra Costa Browns Island n. of Pittsburg (near confluence of Sacramento & San Joaquin rivers, opposite Pittsburg Marina, center of w. end of island); Browns Island Comment
  JEPS111529  Lythrum hyssopifolia D. G. Kelch 2005-5-5 05 .213 Contra Costa Point Pinole - Giant Marsh 3 Comment
  UC1789169  Lythrum tribracteatum Barbara Ertter 2005-8-18 18642 Contra Costa San Pablo Reservoir in East Bay Hills, east of San Pablo Dam Road between Richmond and Orinda; abundant on mudflats left by receding reservoir, mostly dried. Comment
Read comments May 27 2008
  UC2028023  Madia elegans Barbara Ertter 1997-9-14 15811 Contra Costa Southwest side of Mount Diablo, Secret Trail at head of Pine Canyon. Comment
  CDA1585  Madia elegans subsp. densifolia D. G. Kelch 1998-10-2 s.n. Contra Costa Carquinez Strait; Martinez. Along N side of Pine St Entrance to W HWY 4. Comment
  JEPS99516  Madia elegans subsp. densifolia Mary Bowerman 1978-7-9 Contra Costa Mount Diablo, Russelman Park Comment
  CDA33835  Madia elegans subsp. vernalis D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .103 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  UC89385  Madia exigua Katharine Brandegee May 1885 Contra Costa Antioch Comment
  CAS-BOT-BC344325  Madia exigua Joseph Andorfer Ewan 1936-5-24 9693 Contra Costa West slope Bald Peak Comment
  JEPS99484  Madia exigua Mary Bowerman 1978-5-14 Contra Costa Mount Diablo. The old wagon trail to mines on E. side of Eagle Peak. Comment
  UC1819036  Madia exigua Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14246 Contra Costa South side Mount Diablo, Sloan Road between Curry Point and Curry Canyon, roadside in partial shade of oak forest on north-facing slope. 487 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
  JEPS84508  Madia gracilis Jack Stratford 1981-5-18 Contra Costa Huckleberry Trail Huckleberry Botanic Regional Preserve Comment
  CAS-BOT-BC342983  Madia gracilis John Thomas Howell 1931-5-12 6484 Contra Costa North side of Mt. Diablo Comment
  CAS-BOT-BC324491  Madia radiata A. A. Heller 1938-4-9 15015 Contra Costa 3 miles southwest of Antioch Comment
  RSA0008526  Madia radiata A. A. Heller 1938-4-9 s.n. Contra Costa 3 miles southwest of Antioch Comment
  CAS-BOT-BC343579  Madia sativa David D. Keck 1941-6-5 5310 Contra Costa Berkeley Hills, Fish Creek Road, 1/4 mi. W. of East portal of Broadway Tunnel 335 Comment
  CDA18027  Madia sativa B. Case 1999-7-6 PDR 004802 Contra Costa on Norris Canyon Rd., San Ramon. 0 Comment
  UC2028014  Malacothamnus fasciculatus Barbara Ertter 1997-9-14 15821 Contra Costa Southwest side of Mount Diablo, Wall Point Road at head of Emmons Canyon. Comment
  CAS-BOT-BC8183  Malacothamnus fasciculatus subsp. fasciculatus Harvey Monroe Hall; F. M. Essig 1916-5-30 10131 Contra Costa Mt. Diablo on the westerly side north of Pine Canyon 290 Comment
  JEPS26391  Malacothamnus fremontii Kittie L. Fenley 1931-5-3 Contra Costa Nortonville Comment
  UC1042342  Malacothamnus fremontii Lewis S. Rose 1954-6-29 54081 Contra Costa Nortonville Comment
  UC311568 Image available Malacothamnus hallii H. M. Hall and F. M. Essig 1916-5-30 10131 Contra Costa w side n Pine Canyon; Mt. Diablo; Mt. Diablo, Contra Costa Co. Comment
  SEINET10853324 Image available Malacothamnus hallii John Thomas Howell 1931-5-12 Howell 6470 Contra Costa Nortonville. Comment
  CAS-BOT-BC345453  Malacothrix coulteri Alice Eastwood 1914-3-14 3816 Contra Costa Byron Springs Comment
  UC1795010  Malacothrix floccifera R. K. Brummitt, J. Strother and B. Baldwin 1997-5-27 19608 Contra Costa Mount Diablo, W side, Murchio Gap 800 Comment
  JEPS111543  Malva nicaeensis D. G. Kelch 2004-5-21 04 .220 Contra Costa Crockett - Edwards Canyon Edwards Creek EBRP Staging Area near Greenhouse 24 Comment
  POM300651  Malva nicaeensis Mary L. Bowerman 1938-5-25 3631 Contra Costa North Road at Arroyo del Cerro: Weedy place where bank joins first bottom (7 ft. from stream). 110 Comment
  CDA39046  Malva parviflora D. G. Kelch 2011-6-5 11 .575 Contra Costa Carquinez Strait; South of Crockett, south of Cummings Skyway. 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
  UCD116644  Malva parviflora John Thomas Howell; Gordon H, True 1972-6-29 48923 Contra Costa Byron Hot Springs Road southeast of Byron. Comment
  JEPS111542  Malva pseudolavatera D. G. Kelch 2003-3-28 03 .83 Contra Costa Rodeo - Lone Tree Point 2 Comment
  NY221825  Malvastrum hallii H. M. Hall 1916-5-30 10131 Contra Costa Mt. Diablo, on westerly side north of Pine Canyon, Upper Sonoran Zone 275 Comment
  UC2029012  Malvella leprosa Barbara Ertter with Dan Norris 1999-11-14 16849 Contra Costa Black Diamond Mines Regional Preserve, south of parking area for Somersville townsite. Comment
  CDA42228  Marah fabacea D. G. Kelch 2003-3-21 3 .04 Contra Costa Carquinez Strait Region; Martinez; West: Ozol Rock and Scenic Drive. Comment
  RSA724228  Marah fabacea R. R. Halse 1988-2-20 3540 Contra Costa Along Marsh Creek Road, in the Dark Canyon area, 4 miles W of its junction with Deer Valley Road. 156 Comment
  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
  UC2028067  Marah fabacea Barbara Ertter with Tony Morosco 1998-4-12 16007 Contra Costa Mount Olympia on north side of Mount Diablo, below false summit on East Trail. Comment
  UC2028576  Marah fabacea Barbara Ertter with Stu Garrett 1997-3-29 15540 Contra Costa West side Mount Diablo, north end of Mothers Trail. Comment
  CHSC46930  Marah oregana R. A. Schlising 1964-4-2 2697 Contra Costa Berkeley/Oakland Hills. Comment
  CHSC46931  Marah oregana Robert A. Schlising 1962-7-7 2331 Contra Costa Along Pinehurst Road. Comment
  JEPS63286  Marrubium vulgare Mrs. E. L. Mossman 1931-3-20 74 Contra Costa e Richmond (Berkeley Hills); Berkeley Hills Comment
  CAS-BOT-BC348048  Matricaria discoidea R. E. Frenkel 1963-5-27 208 Contra Costa On Morgan Territory Road, 0.2 mile south of summit 637 Comment
  CAS-BOT-BC348258  Matricaria occidentalis R. E. Frenkel 1963-5-15 202 Contra Costa East of Bixler Road between Marsh Creek Road and Point of Timber Road, about 200 yards north of pink house on west side of road, about 10-20 m. east of fence Comment
  POM11845  Matricaria occidentalis Katherine Brandegee 1916-05 s.n. Contra Costa Byron Springs Comment
  CDA29088  Medicago arabica D. G. Kelch 2006-5-7 6 .15 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  UC2028593  Medicago arabica Barbara Ertter with Dorothy Frantz 2001-5-10 17642 Contra Costa Pine Canyon on west side of Mount Diablo, junction of Stage Road and Sunset Trail Comment
  CDA29123  Medicago polymorpha D. G. Kelch 2006-5-7 6 .151 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  UC692278  Medicago polymorpha Mary L. Bowerman 1931-4-4 640 Contra Costa 2 mi by road from west entrance (= North Gate); Mount Diablo Comment
  CAS-BOT-BC271222  Melica californica Mary L. Bowerman 1932-4-16 1349 Contra Costa Eagle Point, Mount Diablo 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
  UC53582  Melica californica H. M. Hall 1904-4-5 Contra Costa Mt. Diablo; San Francisco Bay Region 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
  CAS-BOT-BC281435  Melica imperfecta Beecher Crampton 1956-5-14 3405 Contra Costa S boundary of Mt Diablo State Park Comment
  UCD87871  Melica imperfecta P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  POM257058  Melica imperfecta var. refracta Virginia Long 1933-6-14 221 a Contra Costa Mt. Diablo. On slope SE-E along first west fork from Curry Creek Trail. Comment
  CAS-BOT-BC262510  Melica torreyana Mary L. Bowerman 1935-5-25 3071 Contra Costa Mount Diablo. Meridian Peak south of the summit (east of the hairpin turn on road) 1066 Comment
  JEPS21801  Melica torreyana Joe Zaerr 1958-5-10 126 Contra Costa Moraga Ridge 396 Comment
  SEINET3449596  Melica torreyana Dean G. Kelch, Andrew G. Murdock 2003-3-21 DGK 3 .055 Contra Costa Martinez West, Martinez West, Ozol Rock and Scenic Drive 40 Comment
  UC188902  Melica torreyana Harley P. Chandler 1901-4-5 966 Contra Costa between Pine Canyon and Mt. Diablo Summit; Mt. Diablo Region Comment
  JEPS112336  Melilotus indicus Dean G. Kelch and Andrew G. Murdock 2004-5-9 04 .207 Contra Costa Upper Edwards Canyon, Crockett, CA Contra Costa County, CA above Crockett Blvd. 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
  UC2028956  Mentha pulegium Barbara Ertter 2000-7-16 17385 Contra Costa Lower Pine Creek in Diablo Foothills Regional Park. Comment
  UC1949288  Mentzelia affinis Barbara Ertter 1991-5-5 9773 Contra Costa Black Diamond Mines Regional Preserve S of Pittsburg, S side of Rose Hill above Nortonville Pass Comment
  CDA23916  Mesembryanthemum nodiflorum D. G. Kelch 2006-7-14 6 .327 Contra Costa Carquinez Strait; Along Marine Vista Ave immmediately west of Pacheco Slough. East of Martinez. Comment
  SBBG2832  Micranthes californica J. M. Tucker 1946-3-24 1389 Contra Costa hills between Nortonville and Somersville Comment
  CDA31454  Micropus californicus D. G. Kelch 2006-5-2 6 .21 Contra Costa Carquinez Strait; Fernandez Ranch; W. Christie Rd. Comment
  CDA33418  Micropus californicus D. G. Kelch 2011-5-28 11 .542 Contra Costa Carquinez Strait Region.; W of Martinez. N of end of Hillside Pl. Comment
  UC34598  Micropus californicus var. californicus J. P. Tracy 1900-3-24 618 B Contra Costa Point Richmond San Francisco Bay Region 15 Comment
  UCD134487  Micropus californicus var. californicus P. B. Kennedy 1925-4-26 s.n. Contra Costa Mt. Diablo. Below old road. Comment
  JEPS18257  Microseris campestris Peter H. Raven with Mason, Stone, Ornduff, Kuijt 1957-4-4 10581 Contra Costa vernal flats 3.0 mi s Byron Comment
  CAS-BOT-BC348893  Microseris douglasii subsp. douglasii Alice Eastwood 1922-5-14 11316 Contra Costa Mt. Diablo 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
  JEPS36137  Microseris douglasii subsp. douglasii R. F. Hoover 1937-5-14 2109 Contra Costa Franklin Creek Valley Comment
  UC1586069  Microseris douglasii subsp. douglasii Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8118 Contra Costa 15 air mi sw Stockton (w and adjacent to Clifton Court Forebay, se Contra Costa County) Comment
  UC195795  Microseris douglasii subsp. douglasii F. T. Bioletti 1892-1 Contra Costa Byron Comment
  UC565499  Microseris douglasii subsp. douglasii H. L. Mason 1929-3-31 5142 Contra Costa Briones Valley Comment
  UC691460  Microseris douglasii subsp. douglasii Mary L. Bowerman 1931-4-11 690 Contra Costa Pine Canyon Mount Diablo 121 Comment
  CAS-BOT-BC348887  Microseris douglasii subsp. douglasii Mary L. Bowerman 1933-5-8 2008 Contra Costa Mount Diablo. Fossil Ridge, south face, not far from but out of sight of South Entrance 289 Comment
  RSA720815  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
  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
  JEPS88684  Microseris douglasii subsp. tenella Edw. L. Greene March, 1889 Contra Costa Byron Comment
  CAS-BOT-BC349094  Microseris douglasii subsp. tenella Ira L. Wiggins 1930-4-17 4560 A Contra Costa 1 mi. E. of Mountain House, on road to Byron Comment
  UC92185  Microseris douglasii subsp. tenella Katharine Brandegee Contra Costa Brentwood Comment
  CAS-BOT-BC349167  Microseris elegans K. L. Chambers 1953-4-25 448 Contra Costa Balfour Road, ca. 4 mi. w. of Brentwood and 1.8 mi. e. of its junction with Antioch-Briones Valley Road (Deer Valley Road). Foothills on east side of Mount Diablo Range 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
  JEPS75461  Mimulus aurantiacus var. aurantiacus P. F. Yorks 1975-5-31 430 Contra Costa ca. 1.6 km s Bear Creek Road (on Hampton Road, n of Briones Reservoir); Hampton Road Natural Preserve Comment
  HSC90665  Mimulus aurantiacus var. aurantiacus D. M. Thompson 1992-6-3 1107 Contra Costa SW base of Mt. Diablo, E of Danville. 2.6 mi. NE of Blackhawk and Diablo Rds. along Mt. Diablo Scenic Blvd. and South Gate Rd. 378 Comment
  RSA550837  Mimulus aurantiacus var. aurantiacus David M. Thompson 1992-6-3 1107 Contra Costa SW base of Mt. Diablo, E of Danville. 2.6 mi NE of Blackhawk and diablo rads along Mt. Diablo Scenic Boulvard and South Gate Road 378 Comment
  UC691621  Mimulus cardinalis Mary L. Bowerman 1932-11-19 1663 Contra Costa e Pioneer Camp (beneath fire trail); Mount Diablo, Mountain Springs Canyon Comment
  RSA408851  Mimulus constrictus Anstruther Davidson 1917-7-1 3279 Contra Costa Top Mt. Diablo. Comment
  UC1050851  Mimulus guttatus N. Floy Bracelin 1941-5-25 1321 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS9268  Mimulus latidens M. K. Curran May 1886 Contra Costa Antioch Comment
  UC193602  Mimulus latidens M. K. Curran May 1886 Contra Costa Antioch Comment
  UC691650  Mimulus rattanii Mary L. Bowerman 1933-5-31 2222 Contra Costa Juniper Camp Mount Diablo Comment
  UC1028683  Minuartia californica Herbert L. Mason 1932-3-20 6849 Contra Costa Antioch Sand Hills Comment
  RSA59589  Minuartia douglasii Verne Grant, Alva Grant 1950-5-13 8897 Contra Costa Saddle between N & Meridian peaks, Mt. Diablo. Comment
  UCD102392  Moehringia macrophylla Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Bald Ridge Trail. Bald Ridge. 890 Comment
  UC691414  Monardella douglasii Mary L. Bowerman 1935-6-1 3106 Contra Costa second small ridge e Mitchell-Pine divide (bottom of s face); Mount Diablo 975 Comment
  UC691409  Monardella douglasii Mary L. Bowerman 1933-6-21 2327 Contra Costa slightly s Bilharan Lodge; Mount Diablo, Donner Canyon Comment
  JEPS112466  Monardella villosa subsp. villosa A. G. Murdock 2004-5-28 291 Contra Costa Pinole Peak 405 Comment
  JEPS62399  Monardella villosa subsp. villosa Mary L. Bowerman 1930-6-18 339 Contra Costa Rock City Canyon Mount Diablo Comment
  UC2028367  Monardella villosa subsp. villosa Barbara Ertter 1998-6-20 16252 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, N-facing slope above Coyote Creek Comment
  CAS-BOT-BC327806  Monolopia gracilens Alice Eastwood 1915-5-30 4518 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC349621  Monolopia major Dr. A. Kellogg 1869-4-8 s.n. Contra Costa Antioch Comment
  JEPS34922  Monolopia major R. F. Hoover 1938-3-25 2899 Contra Costa Lone Tree Valley Comment
  JEPS68951  Monolopia major Edward Lee 1935-3-10 1280 Contra Costa Donovan Road West watershed of Kirker Creek, Kirker Pass (se-facing hillside) Comment
  UC1080185  Monolopia major Sherwin Carlquist 1952-3-28 285 Contra Costa 7.2 mi w Tracy Comment
Read comments Apr 12 2009
  UC50097  Monolopia major H. P. Chandler 1900-3-23 582 Contra Costa Briones Valley Mount Diablo Region Comment
Read comments Feb 9 2019
  UC629740  Monolopia major Ethel Crum 1939-3-19 2083 Contra Costa 2 mi w Byron 45 Comment
  RSA289444  Monolopia major Dale E. Johnson 1975-4-12 188 Contra Costa West of Byron; 2.6 km (1.6 miles) west of Byron Highway (Brentwood-Bethany road) on Camino Diablo; just west of road summit; near sand quarry Comment
  UC1607685  Montia fontana Barbara Ertter, Lynne Hosley 1993-4-17 11511 Contra Costa Morgan Territory 10 air mi n of Livermore (in lee of Mount Diablo, s of Hummingbird trail,); Morgan Territory 609 Comment
  UC1795789  Montia fontana subsp. chondrosperma Barbara Ertter, Mary Bowerman et al. 1995-5-7 14029 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, wet ground around small pond west of road in grassy flat. Comment
  UC2028284  Myoporum laetum Barbara Ertter 1998-6-20 16240 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, along path just outside Wiget Lane entrance. Comment
  UC1738125  Myosurus D. E. Stone 1957-2-28 14268 A-13 Contra Costa Comment
  UC1738082  Myosurus minimus D. E. Stone 1956-4-4 14296 C-6 Contra Costa 3 mi S of Byron (on 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
  UC1738111  Myosurus minimus D. E. Stone 1957-3-15 14 -14 Contra Costa on road to Herdlyn, 3 mi S of Byron Comment
  UC1101333  Myosurus sessilis Herbert L. Mason 1952-4-14 14264 Contra Costa 3.5 mi s of Byron Comment
  JEPS112428  Myriophyllum aquaticum Christopher Thayer 1996-3-29 Contra Costa Pinole Creek, near intersection of Pinole Vally Rd and Castro Ranch Rd, on East Bay Municipal Utility District land 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
  JEPS100037  Nassella pulchra S. O'Neil 2003-3-11 SEO 18 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC260129  Nassella pulchra Mary L. Bowerman 1933-5-11 2085 Contra Costa Mount Diablo. Inner Black Hills, W of saddle Comment
  CDA32558  Nassella pulchra A. A. Beetle 1941-3-28 1718 Contra Costa Orinda 0 Comment
  JEPS116947  Navarretia heterandra David Gowen 2008-4-16 858 Contra Costa West end of Horse Valley. 146 Comment
  UC2042805  Navarretia heterandra Kevin Hintsa 2000-5-28 Contra Costa Mount Diablo State Park, area across the road from Curry Point along foot trail (near road) Comment
  UC2042987  Navarretia intertexta subsp. intertexta Barbara Ertter with Alan Prather 2003-6-7 18206 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, shortcut between Coyote Trail and Stone Corral Trail. Comment
  LA206696  Navarretia mellita John Thomas Howell; 1938-6-30 13938 Contra Costa head of Siesta Valley Comment
  SEINET3163766  Navarretia mellita J. T. Howell 1938-6-30 13938 Contra Costa head of Siesta Valley Comment
  UC691643  Navarretia pubescens Mary L. Bowerman 1930-6-5 259 Contra Costa 5.8 mi from West Road (= North Rd) entrance; Mount Diablo 457 Comment
  UC691764  Navarretia pubescens Mary L. Bowerman 1932-11-19 1652 Contra Costa Pioneer Camp Mount Diablo Comment
  UC2062649  Navarretia pubescens Barbara Ertter 2002-6-22 17961 Contra Costa Bruce Lee Spring Trail east of Donner Canyon on north side of Mount Diablo. Comment
  UCD35159  Navarretia squarrosa Beecher Crampton 1950-9-22 621 Contra Costa Vacant lot 1 mile north of Richmond. Comment
  UC106831  Navarretia viscidula K. Brandegee Contra Costa Antioch Comment
  UC124923  Navarretia viscidula Katharine Brandegee 1907-6-16 Contra Costa near Antioch; Judsonville Comment
  SEINET3558412 Image available Nemophila divaricata Lewis S. Rose 1934-3-21 34062 Contra Costa 3 miles east of Clayton. 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
  UC24165  Nemophila heterophylla J. Burtt Davy 1895-4-7 916 Contra Costa Antioch (dry hillsides) Antioch Comment
  SEINET3156480  Nemophila insignis L. S. Rose 1941-3-13 41029 Contra Costa 3 miles W of Byron 30 Comment
  JEPS111846  Nemophila menziesii var. menziesii D. G. Kelch 2005-3-25 05 .84 Contra Costa Pinole Peak Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak 250 Comment
  JEPS127095  Nemophila menziesii var. menziesii Lowell Ahart, Josephine Guardino 2016-4-19 20797 Contra Costa 2.3 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
  UC691710  Nemophila pedunculata Mary L. Bowerman 1935-3-16 2731 Contra Costa Arroyo del Cerro Mount Diablo, Arroyo del Cerro (e fork, Mount Diablo) 228 Comment
  UC1795825  Nicotiana glauca Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14627 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
  UC651281  Nicotiana glauca Ira L. Wiggins 1930-4-18 4604 Contra Costa e end Jersey Island Comment
  UC2027913  Nymphaea Barbara Ertter 2000-9-30 17539 Contra Costa West side Mount Diablo, pond on west side of Briones-Mount Diablo Trail south of Stonegate Trail junction. Comment
  JEPS112083  Oemleria cerasiformis D. G. Kelch 2004-3-12 04 .21 Contra Costa Pinole Valley Hillside and canyon above Wright Road. Off of Pinole Valley Road 130 Comment
  JEPS99980  Oemleria cerasiformis G. Smick 2003-2-20 GAS 46 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA0025334  Oemleria cerasiformis James R. Shevock 2012-8-12 40657 Contra Costa Tilden Regional Park, East Bay Regional Park District. Along Grizzly Peak Trail about midway between the upper and lower trailheads. 448 Comment
  UC691103  Oemleria cerasiformis Mary L. Bowerman 1933-4-22 1887 Contra Costa Curry Cave Point trail; Mount Diablo 396 Comment
  UC691107  Oemleria cerasiformis Mary L. Bowerman 1933-5-17 2114 Contra Costa Mount Diablo; branch of Curry due s of Olafsons barn, crest of ridge between two forks, epecially on e side Comment
  SBBG39495  Oemleria cerasiformis L. S. Rose 1970-3-2 70011 Contra Costa 2 mi NW of Canyon 213 Comment
  CDA15227  Oenanthe sarmentosa G. F. Hrusa, D. Crowe 1998-5-8 14356 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg. Comment
  CDA38497  Oenanthe sarmentosa D. G. Kelch 2003-8-13 3 .1 Contra Costa Carquinez Strait Region; Martinez Marsh. 0 Comment
  JEPS96237  Oenothera curtiflora Barbara Ertter 1991-9-22 10827 Contra Costa sw El Cerrito (Point Isabel Regional Shoreline); Point Isabel Regional Shoreline Comment
  RSA0027719  Oenothera deltoides subsp. cognata Barbara Ertter, Chris Thayer 1994-5-19 12782 Contra Costa Highway 4 between Brentwood and Oakley at Honey Lane, halfway between Cypress Rd and Delta Rd. Comment
  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-BC171591  Oenothera deltoides subsp. howellii P. A. Munz 1949-6-1 14436 Contra Costa Sand dunes east of Antioch. Comment
  CAS-BOT-BC171592  Oenothera deltoides subsp. howellii Volney Rattan 1879-1-1 s.n. Contra Costa Antioch Comment
  UC1073376  Oenothera deltoides subsp. howellii George B. Rossbach 1955-5-22 369 Contra Costa dunes near bank of San Joaquin River (e edge of Antioch); Antioch Comment
  SEINET7719094  Oenothera dentata Chesnut, Drew 1889-4-18 Contra Costa Antioch Comment
  UC2028046  Olea europaea Barbara Ertter 1998-3-1 15921 Contra Costa Shell Ridge Open Space on northwest base of Mount Diablo, Sulfur Creek upstream from Good's Spring. Comment
  UC691505  Orobanche fasciculata Mary L. Bowerman 1935-5-16 2995 Contra Costa Mount Diablo. Russelman Park, just south of the north boundary of section 25 (east of gate). Comment
  UC2045289 Image available Orobanche fasciculata Mary L. Bowerman 1930-6-28 408 Contra Costa Meridian Peak near summit (?) Comment
  JEPS102913  Orobanche pinorum Christopher Thayer 1995-6-27 Contra Costa Mount Diablo State Park, below Prospectors Gap along trail to Murchio Gap Comment
  POM15646  Orthocarpus attenuatus H. P. Chandler 1901-3-21 843 Contra Costa Concord. Comment
  POM15364  Orthocarpus erianthus C. F. Baker 1903-4-27 2792 Contra Costa Byron. Comment
  SEINET12270163  Orthocarpus erianthus L. S. Rose 1932-1 32115 Contra Costa Nortonville Comment
  PASA163  Orthocarpus pusillus Frank W. Peirson 1926-4-10 Contra Costa Road from Pablo to Pinole Comment
  RSA720798  Osmorhiza berteroi Mary L. Bowerman 1975-6-7 s.n. Contra Costa Mount Diablo, Big Spring Comment
  POM301013  Osmorhiza brachypoda Mary L. Bowerman 1938-5-28 3650 Contra Costa Junction of roads: Shady Canyon 671 Comment
  HSC16707  Oxalis oregana D. A. Shally 1965-4-18 37 Contra Costa Canyon 1 mi. N of Canyon Store Comment
  CHSC75108  Oxalis pes-caprae Roger Thom 1987-4-21 4 Contra Costa 3300 block of Johnson Rd. Lafayette. At edge of field. 152 Comment
  JEPS111578  Oxalis pes-caprae D. G. Kelch 2003-3-21 03 .53 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  UC2070526  Oxalis pes-caprae Barbara Ertter 2003-3-28 18138 Contra Costa Round Valley Regional Preserve, mouth of Hardy Canyon along High Creek. Comment
  UC1795761  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 in Delta area, mud on riprap. Comment
  UC2028447  Panicum capillare Barbara Ertter with Chris Thayer 1996-10-25 15379 Contra Costa West side of Mount Diablo, North Gate Road 3 road miles below junction, near Mineral Spring Comment
  SEINET10959961  Panicum capillare Barbara J. Ertter, Lincoln Constance 1995-6-16 Ertter 14262 Contra Costa East edge Dow Marsh on west side Antioch Marina, south side San Joaquin River in Delta area, mud on riprap. Comment
  SBBG122845  Papaver californicum M. Bowerman 1978-5-14 Contra Costa old wagon trail to Mines on E face of Eagle Pk, Mount Diablo Comment
  UC1795772  Parapholis incurva Barbara Ertter, Brad Olson 1994-5-7 12764 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  UC50508  Parapholis incurva Jos. Burtt Davy 1900-6-7 6674 Contra Costa Martinez Comment
  UCD88468  Parapholis incurva A. A. Beetle 1942-4-1 3268 Contra Costa Brooks Island. San Francisco Bay. Comment
  UCD88661  Parapholis incurva P. B. Kennedy 1928-5-12 s.n. Contra Costa Byron Hot Springs. Comment
  CDA22267  Parietaria judaica D. G. Kelch, A. G. Murdock 2005-5-23 5 .372 Contra Costa Carquinez Strait Region; Crockett - Crolona Heights. 6th Street at Lillian Street, Crockett. Comment
  UC1818967  Paspalum dilatatum Barbara Ertter 1995-9-30 14523 Contra Costa North bank of Cerrito Creek at end of Yosemite Avenue in El Cerrito, foot of Albany Hill; stonework bank at edge of overgrown sluggish creek. Comment
  UCD88747  Paspalum dilatatum Helen K. Sharsmith 1963-6-1 s.n. Contra Costa Berkeley Hills, Tilden Park Golf Course. Comment
  UC1606289  Paspalum distichum Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10870 Contra Costa just w Antioch (Dow Wetlands Preserve); Dow Wetlands Preserve Comment
  UC2028558  Paspalum distichum Barbara Ertter with Chris Thayer 1996-10-25 15366 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothill Regional Park. Comment
  UCD88942  Paspalum distichum E. K. Stillwell 1967-7-17 s.n. Contra Costa Brentwood. Comment
  CDA5088  Passiflora tarminiana Barbara Ertter 1999-9-17 16846 Contra Costa South edge of El Cerrito at northeast base of Albany Hill, edge of paved lot at southwest corner of junction San Pablo Avenue and Carlson Avenue, near Cerrito Creek. 0 Comment
  UC766190  Pectocarya pusilla R. F. Hoover 1938-5-4 3351 Contra Costa peak to the e Tassajero Creek Comment
  HSC101963  Pedicularis densiflora Nikolaus Gillen, Michelle Bihler 2014-3-20 15 Contra Costa Mount Diablo State Park. Eagle Peak Trail. 649 Comment
  JEPS84382  Pedicularis densiflora Roxanne Bittman 1977-3-29 27 Contra Costa on n si9de of Mount Diablo Scenic Road about 10 mi from base of mountain Mount Diablo Scenic Road 762 Comment
  JEPS65608  Pediomelum californicum W. L. Jepson 1922-5-23 9657 Contra Costa near very summit Mt. Diablo 1170 Comment
  UC16281  Pediomelum californicum G. Davidson July 1892 Contra Costa Mt. Diablo Comment
  POM20615  Pediomelum californicum F. W. Peirson 1923-7-1 3618 Contra Costa Contra Costa County: summit of mt Diablo Comment
  RSA91021  Pediomelum californicum F. W. Peirson 1923-7-1 3618 Contra Costa Near summit of Mt. Diablo. Comment
  UC1818872  Pelargonium inquinans Barbara Ertter, Brad Olson 1994-5-7 12757 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge, edge of San Francisco Bay. Openings, especially with seepage, near open brush. Comment
  JEPS112049  Pellaea andromedifolia D. G. Kelch 2004-4-25 04 .107 Contra Costa Martinez - West: Ozol Rock and Scenic Drive West Martinez on Scenic Dr. at Road Gate 28 Comment
  JEPS111517  Pellaea mucronata D. G. Kelch 2005-5-13 05 .280 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Ozol rock in chamise chaparral 66 Comment
  JEPS17394  Penstemon centranthifolius Rimo Bacigalupi with G. T. Robbins 1955-5-4 4984 Contra Costa about 1 1/4 mi e Antioch (near the San Joaquin River); near San Joaquin River, e of Antioch 9 Comment
  RSA181408  Penstemon centranthifolius James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  RSA101693  Penstemon centranthifolius H. L. Mason 1929-3-31 5156 Contra Costa Along San Joaquin River, Antioch. Comment
  SEINET12320780  Penstemon centranthifolius Unknown 1980-1 3879 Contra Costa Lime Ridge, N end, S of Ygnacio Valley Rd between Walnut Creek & Concord Comment
  JEPS7569  Penstemon heterophyllus var. heterophyllus W. L. Jepson 1921-6-16 9315 Contra Costa Mt. Diablo Comment
  JEPS108224  Pentachaeta alsinoides David Gowen 2005-5-6 280 Contra Costa Mt. Diablo State Park. South east end of Prospectors Gap Rd., ca 0.3 mile NW of its junction with Ray Morgan Rd. Small area of serpentine outside of the park boundary. Comment
  JEPS107104  Pentachaeta alsinoides Barbara Ertter, Lisa Schultheis 1995-4-27 14006 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; northwest side of open grassy ridge at end of Arbolado Dr. 121 Comment
  UCD137784  Pentagramma triangularis Herbert L. Mason 1924-11-23 1163 Contra Costa Las Trampas Ridge via Cashion. Comment
  JEPS106992  Pentagramma triangularis subsp. triangularis J. Greenhouse with Kevin Hintsa 2004-4-5 5082 Contra Costa Mt. Diablo, Fire Interpretive Trail 1124 Comment
  UC2062630  Persicaria punctata Barbara Ertter 2005-8-15 18627 Contra Costa East side of Contra Loma Reservoir south Antioch. Comment
  UC24300  Phacelia breweri Edw. L. Greene 1892-6-20 Contra Costa Mt. Diablo Comment
  UC24303  Phacelia breweri W. H. Brewer 1058 Contra Costa Mount Diablo; ; Mt. Diablo Comment
  UC691688  Phacelia breweri Mary L. Bowerman 1932-4-16 1341 Contra Costa Eagle Point Mount Diablo (n side) 670 Comment
  POM256513  Phacelia breweri H. L. Mason 1938-5-3 11750 Contra Costa Trail between Juniper Camp and Deer Flat, Mount Diablo. Comment
  JEPS2225  Phacelia californica W. L. Jepson 1896-5-31 21044 Contra Costa Gum Grove Reservoir to Wild Cat Creek; Berkeley Hills Comment
  UC762369  Phacelia californica R. F. Hoover 1938-3-8 2821 Contra Costa Berkeley Country Club (=Mira Vista C.C.) El Cerrito Comment
  UC2022567  Phacelia ciliata Lewis S. Rose 1932-3-15 3281 Contra Costa Byron Comment
  RSA44378  Phacelia ciliata L. S. Rose 1949-3-24 49009 Contra Costa 1 mile W of Byron. 30 Comment
  JEPS2366  Phacelia distans Virginia Bailey 1939-5-3 Contra Costa near summit Mt. Diablo Comment
  UC24341  Phacelia distans J. Burtt Davy 1895-4-7 917 Contra Costa Antioch Comment
  UC881083  Phacelia distans Alice Eastwood 1915-5-30 4496 Contra Costa Mt. Diablo Comment
  RSA83075  Phacelia distans Verne Grant, Alva Grant 1947-3-16 7892 Contra Costa East of Antioch. Comment
  UCD120388  Phacelia distans Robt. Branstead 1934-3-30 s.n. Contra Costa SW slope of Mt. Diablo. 426 Comment
  JEPS2353  Phacelia divaricata W. L. Jepson 1891-6-9 21021 Contra Costa near Berkeley (e side of hills); Oakland Hills, Fish Ranch Comment
  RSA276849  Phacelia douglasii James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  UC107570  Phacelia imbricata T. S. Brandegee 1892-6-9 Contra Costa Port Costa Comment
  JEPS111837  Phacelia imbricata subsp. imbricata A. G. Murdock 2004-5-28 275 Contra Costa Pinole Peak 405 Comment
  JEPS75508  Phacelia imbricata subsp. imbricata P. F. Yorks 1975-5-31 427 Contra Costa on Hampton Rd ca 1.6 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Preserve 180 Comment
  UC735091  Phacelia imbricata subsp. imbricata Lincoln Constance, T. Morley, R. H. Shan, and W. H. Wagner 1946-4-26 3035 Contra Costa below Devil's Pulpit; Mount Diablo, Devil's Elbow 1127 Comment
  UC735094  Phacelia imbricata subsp. imbricata Lincoln Constance, T. Morley, R. H. Shan, and W. H. Wagner 1946-4-26 3033 Contra Costa trail from Juniper Camp to Deer Flat; Mount Diablo 838 Comment
  UCSB46349  Phacelia nemoralis Hawbecker, M. 1983-5-7 Contra Costa Roadside trail, 2 miles off of Grizzly Peak Road, 7.3 miles north of Marin Ave. 502 Comment
  UC691476  Phacelia nemoralis subsp. nemoralis Mary L. Bowerman 1934-4-21 2537 Contra Costa Muir Area Mount Diablo Comment
  CAS-BOT-BC154328  Phacelia phacelioides Lincoln Constance; Carl W. Sharsmith; Howard S. Reed 1940-4-27 2574 Contra Costa North of Juniper Camp, Mount Diablo 762 Comment
  CAS-BOT-BC154331  Phacelia phacelioides Lewis S. Rose 1932-6-24 32341 Contra Costa Mt. Diablo 1173 Comment
  CAS-BOT-BC154332  Phacelia phacelioides Alice Eastwood 1915-5-30 4520 Contra Costa Near type locality. Mt. Diablo Comment
  POM118166  Phacelia phacelioides H. M. Hall, Essig 1916-5-31 10135 Contra Costa Mount Diablo 1140 Comment
  POM300985  Phacelia phacelioides Mary L. Bowerman 1935-5-8 2974 Contra Costa Muir Area. 1006 Comment
  POM310991  Phacelia phacelioides Lincoln Constance, C. W. Sharsmith, H. S. Reed 1940-4-27 2574 Contra Costa North of Juniper Camp, Mount Diablo 762 Comment
  SEINET5506855  Phacelia phacelioides L. Constance, C. W. Sharsmith 1940-4-27 2574 Contra Costa Mount Diablo, north of Juniper Camp 762 Comment
  JEPS1284  Phacelia tanacetifolia Linda Gehringer 1914-3-29 Contra Costa Brentwood Comment
  UC691700  Phacelia tanacetifolia Mary L. Bowerman 1936-4-23 3404 Contra Costa w Deer Flat trail (just w of section line); Mount Diablo, Deer Ridge (Mitchell-Pine divide) 838 Comment
  UC1795888  Phalaris aquatica Barbara Ertter, Rich Rabeler 1994-6-6 12823 Contra Costa Point Isabel in south Richmond; acacia copse at edge of bay at south side of point. Comment
  UC1192354  Phalaris arundinacea Malcolm A. Nobs and S. Galen Smith 1949-7-8 945 Contra Costa 4 mi n Kingston (Otto's Black Bass Resort) Comment
  RSA129153  Phalaris lemmonii C. M. Belshaw 1936-5-11 2099 Contra Costa 2.5 miles east southeast of Danville 229 Comment
  UC1818916  Phalaris paradoxa Barbara Ertter, Robert Stebbins 1996-5-14 14669 Contra Costa Tina Baumgartner site in Tilden Regional Park, North side of Golf Course Rd. east of Grizzly Peak Blvd.; annual grassland on hillside subjected to vegetation conversion. Comment
  UC1818923  Phalaris paradoxa Barbara Ertter, Mary Bowerman 1995-6-11 14251 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
  UC50464  Phalaris paradoxa Jos. Burtt Davy 1900-6-7 6654 Contra Costa San Pablo Canyon Comment
  UCD146727  Phalaris paradoxa G. F. Hrusa; D. Crowe 1998-5-8 14401 Contra Costa Sacramento-San Joaquin River Delta. East end of Dow Chemical property. 15 Comment
  UCD89405  Phalaris paradoxa P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UC691716  Pholistoma auritum Mary L. Bowerman 1932-2-13 1089 Contra Costa just above first main fork Alamo Canyon; Mt. Diablo, Alamo Canyon 381 Comment
  JEPS18381  Pholistoma membranaceum Rimo Bacigalupi with F. Chisaki 1957-3-27 5763 Contra Costa opposite John Marsh Historical Home (along Marsh Creek Rd.) 48 Comment
  UC592179  Pholistoma membranaceum H. L. Mason 1929-3-15 5046 Contra Costa Nortonville Comment
  CAS-BOT-BC141121  Phoradendron serotinum subsp. macrophyllum Lewis S. Rose 1930-12-10 s.n. Contra Costa Walnut Creek Comment
  CAS-BOT-BC141122  Phoradendron serotinum subsp. macrophyllum L. R. Abrams 1916-7-29 6307 Contra Costa Walnut Creek 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
  UC311199  Phragmites australis A. D. E. Elmer July 1903 4541 Contra Costa Martinez Comment
  SEINET10659957  Phragmites communis Adolph D. E. Elmer Elmer 4541 Contra Costa Concord. Comment
  UC1051055  Phygelius capensis N. Floy Bracelin 1942-12-6 2333 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  RSA666318  Phyla nodiflora Barbara Ertter, Brad Olson 1991-9-28 10828 Contra Costa San Pablo Reservoir between Orinda and El Sobrante. 91 Comment
  JEPS87944  Phyla nodiflora var. nodiflora Barbara Ertter, Brad Olson 1991-9-28 10828 Contra Costa at s end of San Pablo Reservoir between Orinda and El Sobrante; San Pablo Reservoir 91 Comment
  UCD33148  Phyllostachys Beecher Crampton 1966-10-18 7814 Contra Costa Contra Costa County, Kensington, Berkeley Hills Blake Garden, UC Berkeley Dept. of landscape architecture. Comment
  POM16711  Pickeringia montana var. montana A. D. E. Elmer 1903-05 4315 Contra Costa Mount Diablo 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
  UC692283  Pickeringia montana var. montana Mary L. Bowerman 1933-2-4 1690 Contra Costa flat e Mt. Diablo-North Peak divide; Mount Diablo 822 Comment
  JEPS46806  Pinus coulteri T. H. Goodspeed 1909-11-1 Contra Costa Mt. Diablo Comment
  UC691927  Pinus coulteri Mary L. Bowerman 1931-3-8 565 Contra Costa above Mitchell Rock; Mount Diablo Comment
  UC691930  Pinus coulteri Mary L. Bowerman 1931-3-8 565 Contra Costa above Mitchell Rock; Mount Diablo Comment
  SEINET3872272  Pinus coulteri Stanley L. Welsh 2006-1-29 29007 Contra Costa Mount Diablo State Park. Steep slope.; 0 914 Comment
  UCD134547  Pinus coulteri Jo Ann Olson; Gary R. Robbins 1969-5-11 37 Contra Costa 1/3 mile south of Nortonville, ca. 5 miles south of Pittsburg. (The UC Davis Herbarium: This specimen has additional material available for examination in the fruit and cone cabinet. Fruit and cone cabinet # 166). 335 Comment
  CDA32812  Pinus halepensis D. G. Kelch 2010-11-8 10 .445 Contra Costa Carquinez Strait; W Valona (Crockett). Comment
  UC2028647  Pinus halepensis Barbara Ertter 2001-3-18 17564 Contra Costa Shell Ridge Open Space SW of Walnut Creek, around Muir Reservoir tank at north end of main ridge Comment
  UC806729  Pinus pinaster Robert E. Burton Contra Costa near Valle Vista (south of Moraga) (n of Redwood road near creek) Comment
  JEPS48209  Pinus sabiniana W. L. Jepson 1906-10-12 1750 Contra Costa Pine Canon Mt. Diablo, Pine Canon Comment
  POM300617  Pinus sabiniana Mary L. Bowerman 1933-5-10 2069 Contra Costa One hundred feet below the Muir area. Comment
  CDA15838  Piptatherum miliaceum R. M. Case 1999-10-22 PDR 1206166 Contra Costa San Francisco Bay Area; near Walnut Creek. 0 Comment
  CDA19635  Pittosporum undulatum M. I. Wibawa 2003-3-1 330 Contra Costa San Francisco Bay Area; Canyon Trail Park off Conlon Ave, El Cerrito. S 0 Comment
  JEPS90184  Plagiobothrys acanthocarpus Dean W. Taylor 1992-4-16 12390 Contra Costa s of Byron Hot Springs (San Joaquin Valley); San Joaquin Valley 45 Comment
  UC691333  Plagiobothrys bracteatus Mary L. Bowerman 1931-4-4 665 Contra Costa margins of dried-up pond w Turtle Rock; Mount Diablo Comment
  POM226098  Plagiobothrys bracteatus J. T. Howell 1933-5-14 11232 Contra Costa St. Mary s College Comment
  POM204086  Plagiobothrys canescens L. S. Rose 1933-3-29 33046 Contra Costa Pittsburg Comment
  JEPS111828  Plagiobothrys fulvus D. G. Kelch 2005-4-24 05 .172 Contra Costa Franklin Canyon Franklin Canyon, Contra Costa County, CA. Collier Hill. West Carbon 60 Comment
  UC575686  Plagiobothrys fulvus Alice Eastwood and John Thomas Howell 1935-4-7 2120 Contra Costa sandy hills on Marsh Creek Road near Byron Comment
  CDA40676  Plagiobothrys humistratus Jim Jokerst 1989-3-29 3066 Contra Costa 0.25 mile south of Byron Hot Springs, northeast of Livermore. 0 Comment
  OBI72067  Plagiobothrys leptocladus Barbara Ertter, Jim Jokerst and Dave Magney 1989-4-5 8129 Contra Costa SE county. W and adj to Clifton Ct Forebay, ca 15 air mi SW of Stockton T1S R3E sec 24 SESW Comment
  JEPS68111  Plagiobothrys nothofulvus Mrs. E. L. Mossman 1931-4-21 139 Contra Costa vicinity Grizzly Peak; Berkeley Hills 472 Comment
  UC180105  Plagiobothrys nothofulvus Harley P. Chandler 1901-4-5 962 Contra Costa Mount Diablo between Pine Canyon and summit; Mount Diablo Comment
  RSA666369  Plagiobothrys stipitatus Barbara Ertter, J. D. Jokerst, D. Magney 1989-4-5 8120 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  UC765574  Plagiobothrys stipitatus var. micranthus R. F. Hoover 1937-5-14 2121 Contra Costa Byron Hot Springs Comment
  UC78209  Plagiobothrys stipitatus var. micranthus T. S. Brandegee 1889-5-1 Contra Costa Antioch Comment
  UC924233  Plagiobothrys stipitatus var. micranthus H. S. Reed 1940-4-30 355 Contra Costa Marsh Creek road Mount Diablo 243 Comment
  UC101485  Plagiobothrys stipitatus var. stipitatus Katharine Brandegee Contra Costa near Antioch Comment
  JEPS116858  Plagiobothrys tenellus David Gowen 2007-4-13 672 Contra Costa On dirt road junction (Ridge Trail) between Castle Rock Recreation Area and Borges Ranch. Comment
  CHSC67897  Plagiobothrys trachycarpus James D. Jokerst 1988-3-21 2995 Contra Costa Los Vaqueros project in Livermore Valley ca. 1 mi W of Vasco Rd. and ca. 0.5 mi S of Camino Diablo Rd. 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
  UC924232  Plagiobothrys trachycarpus H. S. Reed 1940-4-30 353 Contra Costa Marsh Creek Road Mount Diablo (Mount Diablo) 365 Comment
  RSA0029671  Plagiobothrys trachycarpus Barbara Ertter, R. K. Brummitt 1998-5-13 16143 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, depression in road from Somersville Road to south leg of Loughler Loop Trail. Comment
  CHSC68020  Plantago elongata James D. Jokerst 1989-3-28 3063 Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. Comment
  JEPS127674  Plantago elongata Barbara Ertter with David Gowen and Michael Park 2017-5-2 22807 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  JEPS24312  Plantago elongata S. G. Smith 1957-4-28 2851 Contra Costa 1 mi s Byron Comment
  UC75129  Plantago erecta unknown 1903-4-25 2803 Contra Costa Antioch Comment
  POM300989  Plantago erecta Mary L. Bowerman 1933-4-15 1848 Contra Costa Canyon S of Arroyo del Cerro Comment
  JEPS99965  Plantago lanceolata G. Smick 2003-5-30 GAS 203 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS21710  Plantago major John Thomas Howell 1955-8-24 30898 Contra Costa near Diablo Country Club Comment
  UC1618336  Plantago major Barbara Ertter, B. Olson, D. Lake, L. Hosley and A. Youngson 1991-10-20 10859 Contra Costa Dow Wetlands Preserve just w of Antioch Marina; Dow Wetlands Preserve Comment
  UC1192028  Plantago major Malcolm A. Nobs and S. Galen Smith 1949-7-8 947 Contra Costa 4 mi. n. Kingston (Otto's Black Bass Resort); Otto's Black Bass Resort Comment
  UCD124562  Plantago subnuda Ann F. Johnson 1978-6-30 AN- 57 Contra Costa along edge of San Joaquin River, PG and E.-site, Antioch Dunes. Comment
  JEPS40297  Platanus racemosa F. W. Bancroft Oct. 1894 Contra Costa Walnut Creek Comment
  CAS-BOT-BC91604  Platystemon californicus John Thomas Howell 1933-5-14 11278 Contra Costa Hills east of Saint Mary's College. Comment
  LA206263  Platystemon californicus Lewis S. Rose; 1941-3-27 41065 Contra Costa 2 mi. W of Byron 60 Comment
  UC101595  Platystemon californicus Katharine Brandegee 1907-5-5 b Contra Costa between Antioch and Marsh Creek; between Antioch and Marsh Creek Comment
  UC692175  Platystemon californicus Mary L. Bowerman 1933-4-15 1868 Contra Costa canyon s Arroyo del Cerro, Mount Diablo (rocky knoll 250 ft below spring, Mount Diablo); Mount Diablo Comment
  JEPS100158  Plectritis brachystemon G. Smick 2003-4-3 GAS 119 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA517359  Plectritis congesta subsp. nitida L. T. Dempster 1954-6-4 P 16 Contra Costa Wildcat Canyon Road, N of Orinda. Comment
  JEPS111769  Plectritis macrocera D. G. Kelch 2004-4-3 04 .43 Contra Costa Marsh Creek Road cut about 1.5 miles west of Deer Valley Road. Comment
  JEPS12782  Plectritis macrocera Rimo Bacigalupi with G. T. Robbins 1955-5-4 4975 Contra Costa s of and above Nortonville ((site)) 304 Comment
  UC28872  Plectritis macrocera Jos. Burtt Davy 1901-4-21 Contra Costa Wildcat Canyon Comment
  UC2027993  Plectritis macrocera Barbara Ertter with Tony Morosco 1998-4-12 16025 Contra Costa Connector trail on north side of Mount Olympia, north side of Mount Diablo. Comment
  UCD90183  Pleuropogon californicus R. Tofsrud 1946-4-1 s.n. Contra Costa 1/2 mile south of Pacheco Comment
  CAS-BOT-BC260942  Pleuropogon californicus var. californicus W. H. Brewer 1862-5-1 1043 Contra Costa Walnut Creek Comment
  CDA8488  Pluchea odorata D. G. Kelch, A. G. Murdock 2003-8-13 3 .096 Contra Costa Carquinez Strait Region; Martinez Marsh. Comment
  UC2027749  Poa annua Barbara Ertter 1996-11-24 15424 Contra Costa West side of Mount Diablo, Pine Pond along Stage Road in Pine Canyon. Comment
  CAS-BOT-BC254883  Poa bulbosa John Thomas Howell 1983-5-12 54747 Contra Costa Juniper Camp, Mount Diablo 914 Comment
  CAS-BOT-BC246615  Poa howellii Edward Lee 1936-4-19 2007 Contra Costa Northeast slope of the island. Red Rock, San Francisco Bay Comment
  CAS-BOT-BC246643  Poa howellii Mary L. Bowerman 1933-5-22 2167 Contra Costa Mount Diablo. Inner Black Hills: West of 1970 Comment
  UCD91129  Poa howellii P. B. Kennedy 1916-1 s.n. Contra Costa Pinehurst. Comment
  CAS-BOT-BC255790  Poa infirma Alice Eastwood 1921-4-18 10265 Contra Costa Antioch Comment
  POM301052  Poa secunda Mary L. Bowerman 1935-5-18 3031 Contra Costa Meridian Peak north of the summit parking area 1067 Comment
  UC691187  Poa secunda subsp. secunda Mary L. Bowerman 1935-4-26 2900 Contra Costa w Indian Ceremonial spring; Mt Diablo 1021 Comment
  UC70966  Poa secunda subsp. secunda J. Burtt Davy 1900-3-24 6534 Contra Costa near Pt. Richmond Comment
  SEINET8732915 Image available Pogogyne douglasii Leo Koch 1940-1 1002 Contra Costa Along railroad tracks, saline flat two miles south of San Rafael Ferry dock. Comment
  OBI60316  Pogogyne serpylloides Joseph Andorfer Ewan 1935-5-26 9305 Contra Costa E slope of Bold Peak , San Pablo Ridge 549 Comment
  SEINET13947028 Image available Pogogyne serpylloides Joseph Andorfer Ewan 1935-1 9305 Contra Costa E slope of Bald Peak, San Pablo Ridge; 1800 ft alt. 549 Comment
  CDA33778  Polycarpon tetraphyllum D. G. Kelch 2011-5-11 11 .246 Contra Costa Carquinez Strait Region.; Crockett. At CREEC nursery Dowlrelio Dr (below bridge). Comment
  JEPS78621  Polygonum amphibium var. emersum Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3283 Contra Costa Botany Cove Browns Island Comment
  CDA9497  Polygonum aviculare D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .222 Contra Costa Byron Airport. Comment
  POM181450  Polygonum aviculare I. L. Wiggins 1930-4-18 4612 Contra Costa East end of Jersey Island. Comment
  CDA2797  Polygonum cuspidatum G. D. Barbe 1975-10-29 2101 Contra Costa Bank of Lafayette Creek, Mt. Diablo Blvd. at Village Center, Lafayette 0 Comment
  UC1618387  Polygonum punctatum Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10875 Contra Costa just w of Antioch Marina (Dow Wetlands Preserve); Dow Wetlands Preserve Comment
  JEPS95765  Polygonum ramosissimum Dianne Lake 1999-10-5 Contra Costa NW end of wetland at NE corner of Plymouth and Hillcrest, 1 block N of E 18th St. Antioch 3 Comment
  OBI70564  Polygonum ramosissimum subsp. ramosissimum D. G. Kelch 1996-10-17 s.n. Contra Costa Carquinez Strait: Pt Edith Marsh 1 Comment
  UC1478303  Polypodium Alan R. Smith with Tom Lemieux 1981-11-19 825 Contra Costa n slope Mt. Diablo (creekside ravine along North Gate Rd, 3.6 mi w of (below) Park HQ (South Gate Rd. junction)); Mt. Diablo State Park 640 Comment
  JEPS106988  Polypodium calirhiza J. Greenhouse with Kevin Hintsa 2004-4-5 5088 Contra Costa Mt. Diablo, Fire Interpretive Trail, Devil's Pulpit 1109 Comment
  UC1541044  Polypodium calirhiza Dick Moe 1985-2-24 Contra Costa Red Rock Isl.; San Francisco Bay Comment
  UC440151  Polypodium calirhiza Ivar Tidestrom June, 1895 Contra Costa Crockett Comment
  UCR254829  Polypogon Peter Rubtzoff 1968-9-18 5965 Contra Costa North Gate Road, c. 5 miles NW of Mt. Diablo State Park north entrance 58 Comment
  UC691910  Polypogon monspeliensis Mary L. Bowerman 1932-11-19 1656 Contra Costa Lower Grapevine Spring Mount Diablo; , Lower Grapevine Spring Comment
  UC790996  Polypogon monspeliensis A. A. Beetle 1941-6-24 1750 Contra Costa San Francisco Bay Point Richmond; , Point Richmond Comment
  UCD91299  Polypogon monspeliensis Beecher Crampton 1959-9-3 5453 Contra Costa Contra Costa County, 2 miles north of city of Orinda, Bear Creek. Comment
  RSA0026148  Polypogon viridis Barbara Ertter 1998-6-20 16256 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, wet margin of Willow Spring Pond south of Ginder Gap. Comment
  CAS-BOT-BC76718  Polystichum lemmonii C. G. Pringle 1881-8-20 s.n. Contra Costa Mountains about eh head waters of the Sacramento River Comment
  UC1063673  Polystichum munitum R. W. Lundh 1933-3-6 211 Contra Costa 1/2 mi w Eastport; Concord Quadrangle Comment
  JEPS100004  Populus fremontii A. Langston 2003-9-16 AL 91 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS112254  Populus fremontii subsp. fremontii D. G. Kelch 2005-5-13 05 .236 Contra Costa Martinez South of oil refinery along Railroad tracks Comment
  SEINET10785346  Potamogeton filiformis Barbara J. Ertter, Dianne Lake; B. Olson; Lynne Hosley; Amy Hiss 1991-8-18 Ertter 10715 Contra Costa Browns Island N of Pittsburg near confluence of Sacramento & San Joaquin rivers opposite Pittsburg Marina; tangled masses in water at W end of island. Comment
  UC2028534  Potamogeton foliosus Barbara Ertter 2000-9-30 17531 Contra Costa West side Mount Diablo, pond on China Wall Road ca 1/2 mile NW of Macedo Ranch staging area. Comment
  UC2046367  Potamogeton richardsonii Barbara Ertter 2015-10-9 22454 Contra Costa Antioch marina on San Joaquin River delta. Comment
  CDA33067  Prunus dulcis D. G. Kelch 2010-10-5 10 .415 Contra Costa The Delta; Just east of Antioch bridge. Comment
  JEPS112076  Prunus dulcis D. G. Kelch 2003-3-21 03 .43 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  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
  JEPS111723  Pseudognaphalium californicum D. G. Kelch 2004-7-9 04 .295 Contra Costa Crockett - Carquinez Scenic Drive Carq. Scenic Dr. East of Crockett West of Bull Valley SA 60 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
  UC2013024  Pseudognaphalium californicum Barbara Ertter 1990-5-19 8994 Contra Costa Lafayette Ridge of Briones Regional Park N of Lafayette. Comment
  CHSC116623  Pseudognaphalium luteoalbum Lowell Ahart; Josephine Guardino 2016-4-19 20767 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Below the high water line of Los Vaqueros Reservoir, 1.4 miles northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  UC697187  Pseudognaphalium ramosissimum Mary L. Bowerman 1938-11-19 3735 Contra Costa on stream bank Mount Diablo, Mitchell Canyon 259 Comment
  SEINET3875503  Pseudotsuga menziesii Michael R. Tansey 1963-2-15 2 Contra Costa North end of Jewel Lake in Tilden Regional Park, California.; 0 152 Comment
  CAS-BOT-BC361877  Psilocarphus tenellus E. M. Zeile 1924-5-4 s.n. Contra Costa Hills above Walnut Creek Comment
  UC1819052  Psilocarphus tenellus Barbara Ertter, Chris Thayer 1995-4-25 13990 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Devil's Slide area of Sycamore Canyon, roadside thru chaparral zone. 304 Comment
  RSA600819  Psoralea physodes Joseph A. Ewan 1934-4-8 8752 Contra Costa Mt. Diablo: Marsh Creek. 243 Comment
  RSA762192  Ptelea angustifolia Anstruther Davidson 1884-05 s.n. Contra Costa Antioch. Comment
  SEINET12235404  Ptelea baldwinii M. T. Doretl 1930-1 79 Contra Costa Marsh Creek Comment
  POM138972  Ptelea baldwinii subsp. crenulata A. D. E. Elmer 1903-05 4327 Contra Costa Mount Diablo. Comment
  POM278390  Ptelea baldwinii subsp. crenulata Lyman D. Benson 1931-3-18 2668 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 Comment
  RSA77085  Ptelea baldwinii subsp. crenulata Alice Eastwood, John T. Howell 1936-4-19 2134 Contra Costa Nortonville. Comment
Read comments Aug 27 2011
  CAS-BOT-BC148625  Ptelea crenulata Mary L. Bowerman 1930-6-22 357 Contra Costa Mitchell Canyon, Mount Diablo Comment
  CAS-BOT-BC148630  Ptelea crenulata Alice Eastwood; John Thomas Howell 1936-4-19 2134 Contra Costa Nortonville Comment
  CAS-BOT-BC148634  Ptelea crenulata Rimo Bacigalupi 1926-4-30 1354 Contra Costa Near summit of Mt. Diablo Comment
  CAS-BOT-BC148640  Ptelea crenulata A. D. E. Elmer 1903-5-1 4327 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC148644  Ptelea crenulata V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley Comment
  JEPS99948  Ptelea crenulata G. Smick 2003-4-8 GAS 127 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  SJSU5754  Ptelea crenulata C. O. Dudley 1966-5-1 103 Contra Costa Reliez Valley, Briones Hills, N of Lafayette 152 Comment
  UC1277976  Ptelea crenulata B. Crampton 1957-7-9 4273 Contra Costa 2-3 mi nw Martinez (slopes above the Carquinez Straits) Comment
  UC17380  Ptelea crenulata W. H. Brewer 1862-5-7 1052 Contra Costa n slope Mount Diablo 30 Comment
  UC17381  Ptelea crenulata W. H. Brewer 1862-5-27 1175 Contra Costa s slope Mount Diablo Comment
  UC571100  Ptelea crenulata H. L. Mason 1928-4-1 4273 Contra Costa hills n Mount Diablo (canyon back of Pittsburg) Comment
  UC909620  Ptelea crenulata Kay H. Beach 1941-4-30 1080 Contra Costa about 7 mi w Byron (n bank along Marsh Creek); Marsh Creek 30 Comment
  CAS-BOT-BC148617  Ptelea crenulata Peter H. Raven; H. L. Mason; R. Ornduff 1957-4-11 10624 Contra Costa Curry Canyon, 4.0 miles s. of Recreation Ground Comment
  SBBG71054  Ptelea crenulata J. M. Tucker 1941-8-28 383 Contra Costa Curry Cyn, 3 mi S of jct of Curry Cyn Rd with Clayton-Byron Rd Comment
  UC1198069  Pterostegia drymarioides Joseph P. Tracy 1934-4-30 13191 Contra Costa near Lafayette 152 Comment
  UC1748008  Quercus E. Dean, M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 657 Contra Costa Fossil Ridge, just below and 0.1 mi along fire rd that begins at the parking lot SE of Rock City and climbs onto Fossil Ridge in southeasterly direction Mount Diablo State Park 487 Comment
  UC691313  Quercus X morehus Mary L. Bowerman 1931-3-22 609 Contra Costa between Oyster Point and Cave Point; Mount Diablo Comment
  CAS-BOT-BC104167  Quercus X morehus Mary L. Bowerman 1935-10-26 3349 Contra Costa Mount Diablo. 0.1 mile by road above Silver Spring, 50 feet from road 859 Comment
  JEPS104771  Quercus X morehus John L. Morrison 1937-3-6 1968 Contra Costa Comment
  UC691317  Quercus X morehus Mary L. Bowerman 1933-6-14 2278 Contra Costa Inner Black Hills, w of 1970 Mount Diablo Comment
  CAS-BOT-BC45663  Quercus agrifolia Mary L. Bowerman 1930-6-3 225 Contra Costa West road, 1.9 miles from west entrance, Mount Diablo Comment
  JEPS111960  Quercus agrifolia D. G. Kelch 2004-3-12 04 .16 Contra Costa Crockett - West Valona 1 km west of Carquinez bridge. Hill above San Pablo Road 87 Comment
  JEPS111961  Quercus agrifolia D. G. Kelch 2004-3-12 04 .20 Contra Costa Pinole Valley Hillside and canyon above Wright Road. Off of Pinole Valley Road. Contra Costa County, 130 Comment
  JEPS75530  Quercus agrifolia P. F. Yorks 1975-4-10 381 Contra Costa on Hampton Rd ca 1.7 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  UC1042561  Quercus agrifolia John Thomas Howell 1950-7-5 26638 Contra Costa Nortonville Comment
  UC1135309  Quercus agrifolia R. W. Lundh 1932-8-17 132 Contra Costa 1 mi E of Round Valley 518 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
  UCD45028  Quercus agrifolia J. M. Tucker 1946-3-14 1374 Contra Costa Small tree ca.29 feet tall, in clearing among redwoods; Redwood Peak, ca. 150 yards south of summit, Contra Costa County, California. Comment
  UCD45040  Quercus agrifolia J. M Tucker 1946-3-14 1375 Contra Costa Small tree ca. 15 feet tall; sunny southeast-faicng slope, on border of redwood grove associated with Ceanothus thyrsiflorus and Baccharis; Redwood Peak, ca. 200 yards south of summit, Contra Costa County, California. Comment
  UC1481546  Quercus berberidifolia Neil Havlik 1980-5-15 918 Contra Costa Standard Oil Refinery, in a draw above asphalt plant Richmond Comment
  UC691302  Quercus berberidifolia Mary L. Bowerman 1933-5-25 2194 Contra Costa Oyster Ridge, e of saddle (1300 ft), at w end of s-face Mount Diablo Comment
  UC691303  Quercus berberidifolia Mary L. Bowerman 1931-10-13 1057 Contra Costa Alamo Canyon, by gully running w into creek just s of main ridge Mount Diablo Comment
  UC691312  Quercus berberidifolia Mary L. Bowerman 1935-11-30 3355 Contra Costa Fossil Ridge Mount Diablo Comment
  CAS-BOT-BC62695  Quercus chrysolepis Paul F. Covel 1940-5-12 1744 Contra Costa Mt. Diablo (at Rock City) 487 Comment
  UC691275  Quercus chrysolepis Mary L. Bowerman 1930-10-25 496 Contra Costa Sloan Road Mount Diablo Comment
  CAS-BOT-BC86643  Quercus douglasii Alice Eastwood 1923-5-4 11732 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC86644  Quercus douglasii Alice Eastwood 1923-5-14 11813 Contra Costa Mt. Diablo Comment
  UC1135462  Quercus douglasii C. M. Belshaw 1936-5-15 2133 Contra Costa Long Valley Mt. Diablo Quad. 228 Comment
  RSA476581  Quercus douglasii H. de Forest 1930-4-13 s.n. Contra Costa Road through N end Diablo Range. 915 Comment
  OBI14287  Quercus durata var. durata H. E. McMinn 22-Oct 408 Contra Costa Mitchell Cyn-Mt. Diablo Comment
  CDA37340  Quercus garryana D. G. Kelch 2010-10-31 10 .445 Contra Costa South Pinole Peak. Comment
  UCSC008851  Quercus kelloggii Al Keuter 2014-5-23 AK 00 -094 Contra Costa Along Wildcat Canyon Road on the northeast side of the first range of hills behind Berkeley. 166 Comment
  UC5607  Quercus kelloggii unknown 1800-1 Contra Costa Comment
  JEPS99998  Quercus lobata G. Smick 2003-2-18 GAS 64 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD47071  Quercus palmeri J. M. Tucker 1981-4-25 4453 D Contra Costa California, Contra Costa County: Antonio Souza Ranch southwest of Byron (extended Section NW quarter Sec. 31, R3E, T1S, Mt. Diablo Meridian). 309 Comment
  UC1748015  Quercus parvula var. shrevei E. Dean with B. Ertter, J. M. Tucker, K. Chaney 2000-9-13 650 Contra Costa El Sobrante Ridge, upslope of the terminus of Heavenly Ridge Rd., jct of Heavenly Ridge Trail and Manzanita Trail El Sobrante 213 Comment
  UC2070466  Quercus parvula var. shrevei Barbara Ertter 2000-9-2 17523 Contra Costa Sobrante Ridge Preserve in hills southeast of El Sobrante, Manzanita Trail near Heavenly Ridge Trail junction. Comment
  UC691296  Quercus wislizeni Mary L. Bowerman 1933-9-30 2449 Contra Costa Russelman Park Mount Diablo Comment
  UC691290  Quercus wislizeni var. frutescens Mary L. Bowerman 1931-4-25 777 Contra Costa Mount Diablo Comment
  JEPS84502  Rafinesquia californica Jack Stratford 1981-5-6 Contra Costa Skyline Trail between Huckleberry Trail and Pinehurst Road; Huckleberry Botanic Regional Preserve Comment
  UC35844  Rafinesquia californica F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  UC691446  Rafinesquia californica Mary L. Bowerman 1930-6-14 327 Contra Costa little below summit Meridian Peak; Mount Diablo, little below summit of Meridian Peak Comment
  UC691453  Rafinesquia californica Mary L. Bowerman 1933-4-26 1910 Contra Costa n peak ridge e-se of peak Mount Diablo; n peak ridge e-se of peak of Mount Diablo 609 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
  JEPS112058  Ranunculus californicus D. G. Kelch 2004-5-2 04 .161 Contra Costa Crockett - Edwards Canyon Edwards Canyon, Crockett, Contra Costa County, CA 125 Comment
  POM268431  Ranunculus californicus Lyman Benson 1931-3-18 2664 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 Comment
  UC400155  Ranunculus californicus Ynes Mexia 1929-4-21 2377 Contra Costa Moraga Valley Comment
  JEPS73327  Ranunculus canus Edward Lee 1935-3-10 1284 Contra Costa Donovan Road Kirker Pass ((w watershed of Kirker Creek)) 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
  UC692190  Ranunculus canus var. canus Mary L. Bowerman 1932-3-23 1127 Contra Costa East of Donner Creek; Mount Diablo Comment
  POM268449  Ranunculus canus var. laetus Lyman Benson 1935-3-16 6272 Contra Costa Mitchell Canyon near Clayton; Mt. Range: Mt. Diablo; Watershed: Walnut Creek. 244 Comment
  UC1607964  Ranunculus hebecarpus Donald G. Nelson 1937-4-29 507 Contra Costa Road from Pinole south towards Alhambra Road Pinole 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
  UC2028146  Ranunculus hebecarpus Barbara Ertter 1998-4-4 15968 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, and Indian Valley School. Comment
  SEINET9161829  Ranunculus lobbii B. Ertter, D. Gowen 2006-3-1 18665 Contra Costa Upper San Leandro Reservoir Watershed (EBMUD) S of Moraga, along SE end of Rocky Ridge Road as it drops to King Canyon Road. 180 Comment
  UC2029153  Ranunculus lobbii Barbara Ertter with Mary Bowerman 1995-5-7 14035 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton. Comment
  UC692145  Ranunculus muricatus Mary L. Bowerman 1933-6-21 2342 Contra Costa edge of stream near Bilbaren Lodge (s of house, n of barn); Mount Diablo, Donner Canyon Comment
  POM289510  Ranunculus sceleratus H. L. Mason 1937-6-21 11547 Contra Costa 0.5 mile from the S end of Borden Hwy and 1.5 miles W of Byron. Comment
  POM313443  Ranunculus sceleratus H. L. Mason 1937-6-21 11547 Contra Costa 0.5 mile from the S end of Borden Hwy and 1.5 miles W of Byron. Comment
  CAS-BOT-BC74267  Raphanus sativus Ira L. Wiggins 1930-4-18 4610 Contra Costa Jersey Island. Comment
  CAS-BOT-BC74268  Raphanus sativus Walter Knight; W. Roderick; S. Edwards; B. Doyle 1978-9-19 3251 Contra Costa Browns Island. South Landing. Comment
  UC1789165  Rhamnus alaternus Barbara Ertter with Tony Morosco 1998-10-18 16431 Contra Costa NW slope of Lime Ridge Open Space just S of Ygnacio Valley Road, bottom of swale at fenceline Comment
Read comments Apr 29 2013
  UC692615  Rhamnus californica Mary L. Bowerman 1930-8-31 451 a Contra Costa e of Sloan place (Sloan Road); Mount Diablo, Inner Black Hills Comment
  SEINET13946276 Image available Rhamnus californica Charles M. Belshaw 1425 Contra Costa Sierra Nevada, Las Trampas Ridge; 400 ft alt. 122 Comment
  CAS-BOT-BC59895  Rhamnus ilicifolia Peter Rubtzoff 1951-10-7 816 Contra Costa Ca. 3 mi. ne. of Moraga, near Trampas and Grizzly Creeks. Comment
  RSA498217  Rhus trilobata var. pilosissima H. de Forest 1930-4-6 s.n. Contra Costa SE of Mortonville, Small coal mine ravine. 274 Comment
  UC75430  Ribes Milo S. Baker 1904-6-24 Contra Costa near summit Mt. Diablo Comment
  UC1925895  Ribes Donald G. Nelson 1937-4-29 559 Contra Costa lefthand side of Tunnel Road at entrance to Canyon. Oakland. Comment
  SBBG28501  Ribes californicum E. Mulliken 1905-1-28 Contra Costa Wildcat Cyn, Berkeley Hills Comment
  SD2124  Ribes californicum Earle Mulliken 1905-2-5 161 Contra Costa Berkeley Hills. Comment
  UC570402  Ribes californicum Chas. M. Belshaw 1936-2-16 1592 Contra Costa 1 3/4 mi nnw Orinda; Sobrante and Briones Hills, Bear Creek 99 Comment
  UC11525  Ribes divaricatum var. pubiflorum J. Burtt Davy 1895-4-13 997 Contra Costa Lafayette Comment
  UC69857  Ribes divaricatum var. pubiflorum H. M. Hall 1900-3-24 Contra Costa Bear Creek San Francisco Bay Region Comment
  UC692226  Ribes malvaceum Mary L. Bowerman 1930-10-19 486 Contra Costa West road = North Rd. Mount Diablo Comment
  UC11654  Ribes menziesii Edw. L. Greene 1892-6-20 Contra Costa Mt. Diablo 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
  CAS-BOT-BC209363  Ribes sanguineum var. glutinosum H. E. McMinn 1925-1-1 22 Contra Costa Head of San Leandro Creek Comment
  JEPS97013  Ribes sanguineum var. glutinosum R. D. Stone 1981-1-31 264 Contra Costa Huckleberry Trail Oakland Hills, near Alameda-Contra Costa county line (NE of intersection of Skyline Blvd. and Snake Rd.) Comment
  CAS-BOT-BC362961  Rigiopappus leptocladus Mary L. Bowerman 1933-5-10 2061 Contra Costa Mount Diablo. Ridge at east end of, and south of, Meridian Flat 822 Comment
  CAS-BOT-BC362962  Rigiopappus leptocladus Mary L. Bowerman 1931-4-4 669 Contra Costa Mount Diablo. West of Turtle Rock Comment
  UC697151  Rigiopappus leptocladus Mary L. Bowerman 1931-4-4 669 Contra Costa w Turtle Rock; Mount Diablo Comment
  UC697154  Rigiopappus leptocladus Mary L. Bowerman 1935-4-22 2890 Contra Costa ridge w Pioneer Road (w of Old Stage Road); Mount Diablo 853 Comment
  UC24540  Romanzoffia californica H. N. Bolander 1866-1 6280 Contra Costa Mt. Diablo Comment
  UC691081  Rorippa curvisiliqua Mary L. Bowerman 1933-9-9 2435 Contra Costa Mount Diablo. Comment
  CAS-BOT-BC147407  Rosa californica Peter H. Raven 1957-7-5 11053 Contra Costa Point Isabel Comment
  JEPS75478  Rosa californica P. F. Yorks 1975-6-21 452 Contra Costa on Hamton Rd near entrance gate to Hampton Road Natural Reserve (n of Briones Reservoir, ca 1.4 km s of Bear Creek Rd) Comment
  JEPS78620  Rosa californica Walter Knight, L. R. Heckard, and Bert Johnson 1978-9-28 3286 Contra Costa Sandy Knoll Browns Island Comment
  CDA23621  Rosa gymnocarpa D. G. Kelch, D. A. Weinstein 2008-4-15 8 .046 Contra Costa Carquinez Strait; S Port Costa along Mckewen Rd. Comment
  UC555647  Rosa gymnocarpa Herbert L. Mason 1924-11-23 1161 Contra Costa Cashion Creek Las Trampas Ridge Comment
  UC691148  Rosa gymnocarpa Mary L. Bowerman 1931-5-21 887 Contra Costa Curry-Cave Point trail Mount Diablo (where streambed forks and on w fork) 441 Comment
  CAS-BOT-BC148206  Rosa spithamea Alice Eastwood 1923-5-4 11705 Contra Costa Mt. Diablo Comment
  JEPS102898  Rosa spithamea Barbara Ertter, Brad Olson 1997-11-1 15878 Contra Costa Knobcone Point Road E of Balancing Rock Mount Diablo 548 Comment
  UC2028227  Rosa spithamea Barbara Ertter 1998-12-6 16470 Contra Costa Rock City area on southwest side Mount Diablo. Comment
  UC2027880  Rubus armeniacus Barbara Ertter with Mary Bowerman 1996-11-1 15404 Contra Costa North base of Mount Diablo, lower Donner Creek between trailhead and cabin site. Comment
  CDA924  Rubus ursinus D. G. Kelch 2006-5-5 6 .129 Contra Costa East Bay; Wildcat Canyon Regional Park. Near Wildcat Canyon Road terminus. Comment
  UC12996  Rubus ursinus W. H. Brewer 1862-5-17 1107 Contra Costa Canyon n Monte Diablo; Canyon n of Monte Diablo Comment
  UC2029018  Rubus ursinus Barbara Ertter 1999-7-17 16767 Contra Costa Tilden Regional Park, trail to Jewell Lake paralleling Wildcat Creek, through thick woodland growth. Comment
  OBI70549  Rumex acetosella D. G. Kelch, D. A. Weinstein 2008-4-15 8 .042 Contra Costa Carquinez Strait: S Port Costa along Mckewen Rd 137 Comment
  UC1328160  Rumex acetosella Olive Dyer 1937-4-4 262 Contra Costa hilltop above Trituros canyon tributary; Wildcat Canyon Comment
  CAS-BOT-BC421865  Rumex acetosella Mary L. Bowerman 1935-5-18 3016 Contra Costa Mount Diablo. Road above Indian Ceremonial Spring: Roadbank at hairpin turn. Comment
  RSA0033845  Rumex conglomeratus Barbara Ertter 2000-7-16 17380 Contra Costa Diablo Foothills Regional Park, along Pine Creek between Castle Rock Recreation Area and flood-control checkdam. 106 Comment
  CAS-BOT-BC421738  Rumex conglomeratus John Thomas Howell; Gordon H. True 1972-6-29 48935 Contra Costa On Byron Hot Springs Road southeast of Byron Comment
  UC2029192  Rumex conglomeratus Barbara Ertter 2000-7-16 17380 Contra Costa Diablo Foothills Regional Park, riparian strip along Pine Creek between Castle Rock Regional Recreation Area Comment
  JEPS99969  Rumex crispus A. Langston 2003-6-23 AL 55 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC650557  Rumex crispus Ira L. Wiggins 1930-4-18 4605 Contra Costa Jersey Island Comment
  JEPS112030  Rumex obtusifolius Dean G. Kelch and Andrew G. Murdock 2005-4-24 DGK 05 .177 Contra Costa Franklin Canyon, Contra Costa County, CA. Collier Hill. West Carbon. Comment
  CAS-BOT-BC433753  Rumex pulcher Mary L. Bowerman 1938-5-28 3644 Contra Costa Mount Diablo. Maple Spring Comment
  CDA29768  Rupertia physodes D. G. Kelch, Troy MacGregor 2009-5-1 9 .267 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  JEPS65649  Rupertia physodes W. L. Jepson May 23 1891-May 24 1891 13595 Contra Costa Mt. Diablo Comment
  OBI12751  Rupertia physodes G. Thomas Robbins 1958-7-6 3890 Contra Costa Along Pinehurst Rd, on slopes above Upper San Leandro Reservoir, about 1/4 mi N of Alameda Co line 229 Comment
  CDA23066  Sagina apetala D. G. Kelch, D. A. Weinstein 2008-5-5 8 .094 Contra Costa Carquinez Strait; Richmond. W Chevy s Hill. N parking lot of Hilltop Mall. Comment
  UCD143634  Sagina procumbens Mack Osborne 1948-6-25 s.n. Contra Costa Danville. Comment
  POM208488  Sagittaria latifolia H. M. Hall 1916-8-16 10273 Contra Costa Antioch. Region of San Francisco Bay. Comment
  SEINET10946617 Image available Sairocarpus elmeri Adolph D. E. Elmer Elmer 4809 Contra Costa Comment
  UC2029092  Salicornia depressa Barbara Ertter 1990-9-30 9656 Contra Costa Point Pinole Regional Shoreline on SW corner of park; edge of San Pablo Bay. Comment
  UC69376  Salix Wm. W. Mott 1905-3-11 Contra Costa n.e. corner of San Pablo and McAvoy Lane Comment
  UC69377  Salix Wm. W. Mott 1905-3-11 Contra Costa n.e. corner San Pablo and McAvoy Lane Comment
  CAS-BOT-BC129914  Salix bonplandiana Mary L. Bowerman 1933-11-9 2468 Contra Costa Meridian Peak; spring on ridge west of Old Government Trail, fifty feet from head of spring - Mount Diablo 533 Comment
  UC691922  Salix exigua var. hindsiana Mary L. Bowerman 1936-5-6 3412 a Contra Costa Mitchell Canyon Mt. Diablo, Mitchell Canyon 152 Comment
  UC691958  Salix exigua var. hindsiana Mary L. Bowerman 1935-5-30 3080 Contra Costa by Donner Canyon stream Donner Canyon; Mt. Diablo, Donner Canyon 152 Comment
  UC725834  Salix gooddingii A. A. Heller 1908-4-16 8886 Contra Costa Antioch 12 Comment
  CAS-BOT-BC104085  Salix hindsiana Mary L. Bowerman 1936-5-6 3412 a Contra Costa Mitchell Canyon 152 Comment
  CDA34023  Salix laevigata D. G. Kelch 2011-3-31 11 .079 Contra Costa Carquinez Region; Richmond; Hilltop Lake Park. Comment
  UC691923  Salix laevigata Mary L. Bowerman 1933-5-21 2162 a Contra Costa stream bed immediately below thimbleberry patch in Sulphur Spring fork; Mt. Diablo, Sulphur Spring Canyon Comment
  JEPS77014  Salix lasiolepis Robert M. Lloyd 1963-3-17 2141 Contra Costa 0.5 mi e of intersection of Grizzly Peak Rd. and Skyline Drive (on Skyline (across from 7090 Skyline), Huckleberry trail) Comment
  JEPS97546  Salix lasiolepis R. D. Stone 1981-3-23 341 Contra Costa Huckleberry Trail Oakland Hills, near Alameda-Contra Costa county line (NE of intersection of Skyline Blvd. and Snake Rd.) 396 Comment
  CAS-BOT-BC107366  Salix lasiolepis var. lasiolepis Walter Knight; Joanne Dean 1978-8-14 3117 Contra Costa Browns Island Comment
  CAS-BOT-BC129555  Salix lasiolepis var. lasiolepis Mary L. Bowerman 1932-8-27 1519 Contra Costa Spring south of Turtle Rock (by a large group of willows) - Mount Diablo Comment
  RSA666468  Salpichroa origanifolia Barbara Ertter 1991-5-12 9818 Contra Costa Point Isabel Regional Shoreline in SW corner of El Cerrito, on San Francisco Bay. Comment
  JEPS111804  Salsola soda D. G. Kelch 2004-4-26 04 .136 Contra Costa Point Pinole 3 Comment
  SEINET12765134  Salsola soda Barbara Ertter 1990-9-30 9659 Contra Costa Northwest side of county, Point Pinole Regional Shoreline on San Pablo Bay, north Richmond; edge of salicornia marsh on N edge of park.; 0 Comment
  UC2029165  Salsola soda Barbara Ertter 1990-9-30 9659 Contra Costa NW CONTRA COSTA CO.: Point Pinole Regional Shoreline on San Pablo Bay, north Richmond; edge of salicornia marsh on N edge of park. Comment
  SEINET7718207  Salvia carduacea Chesnut, Drew 1889-4-18 Contra Costa Antioch Comment
  UC691722  Salvia columbariae Mary L. Bowerman 1933-5-2 1942 Contra Costa below Pioneer Camp, Mount Diablo; Mount Diablo 762 Comment
  UC691727  Salvia columbariae Mary L. Bowerman 1930-6-7 290 Contra Costa Mount Diablo Comment
  CDA34981  Salvia elegans Barbara Ertter 2010-5-12 19829 Contra Costa Miller Knox Regional Shoreline at south edge of Point Richmond, southernmost path from Old Country Road to Dornan Drive. 0 Comment
  JEPS120273  Salvia leucophylla Barbara Ertter with David Gowen 2012-6-9 21026 Contra Costa southeast of junction of Big Springs Trail and Seaview Trail, southeastern Tilden Park in Berkeley Hills Comment
Read comments Mar 22 2018
  CAS-BOT-BC233290  Salvia mellifera John Thomas Howell 1923-11-12 247 Contra Costa Mt. Diablo Comment
  HSC101955  Salvia mellifera Nikolaus Gillen, Michlle Bihler 2014-3-20 7 Contra Costa Mount Diablo State Park. Back Creek Trail. 340 Comment
  JEPS100053  Salvia mellifera G. Smick 2003-3-27 GAS 94 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1124790  Salvia mellifera R. W. Lundh 1933-3-25 221 Contra Costa 1 mi w Alamo; Concord Quad. 213 Comment
  UC691515  Salvia mellifera Mary L. Bowerman 1932-3-6 1104 Contra Costa mouth of Sycamore Canyon; Mount Diablo Comment
  UC1125344  Sambucus mexicana R. W. Lundh 1932-9-22 165 Contra Costa Mount Diablo Mt. Diablo Quadrangle Comment
  CAS-BOT-BC238634  Sambucus nigra subsp. caerulea Barrett Anderson 1987-4-30 3487 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD 125 Comment
  UCD150884  Sambucus nigra subsp. caerulea James A. Neilson Jr. 1972-11-9 s.n. Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 1 Comment
  UCD164883  Sambucus nigra subsp. caerulea Henry House 1995-5-20 1995- 12 Contra Costa Adjacent to Walnut Blvd., approximately 1.25 km south of Marsh Creek Road. 30 Comment
  CHSC21630  Sanicula bipinnata Willis Ball 1975-3-9 495 Contra Costa Contra Loma Regional Park. In area #8. At the peak of a large hill ca. 560 yds s of main parking lot ca. 800 yds w of Contra Loma Blvd. 152 Comment
  JEPS260  Sanicula bipinnata W. L. Jepson 1923-4-22 9870 Contra Costa Mt. Diablo Comment
  UC1925899  Sanicula bipinnata Donald G. Nelson 1937-3-30 468 Contra Costa Along Marsh Creek Road between Claytonville and Byron Comment
  RSA471428  Sanicula bipinnata H. de Forest 1930-4-6 s.n. Contra Costa SE of Mortoville, Small coal mine ravine. Comment
  CDA38533  Sanicula bipinnatifida D. G. Kelch 2005-5-6 5 .227 Contra Costa Carquinez Strait Region; Franklin Canyon. East of Christie Road. South of Route 4. Comment
  CHSC21621  Sanicula bipinnatifida Willis Ball 1975-3-25 502 Contra Costa Contra Loma Regional Park. In area #3. At peak of larg hill inarea #3 ca. 120 yds sw of the Dam. 60 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
  JEPS111596  Sanicula bipinnatifida A. G. Murdock 2004-3-19 236 Contra Costa McEwen Road 150 Comment
  JEPS111603  Sanicula bipinnatifida D. G. Kelch 2003-3-21 03 .50 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  JEPS111612  Sanicula bipinnatifida D. G. Kelch 2004-4-3 04 .48 Contra Costa Martinez - Vine HillRidge West of 680. North of highway 4 44 Comment
  RSA471438  Sanicula bipinnatifida Joseph A. Ewan 1936-4-19 9464 Contra Costa W. slope of Wildcan Canyon Comment
  CDA38526  Sanicula crassicaulis D. G. Kelch 2003-4-3 3 .367 Contra Costa Carquinez Strait Region; Cummings Skyway. Comment
  JEPS100130  Sanicula crassicaulis G. Smick 2003-3-3 GAS 62 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS77016  Sanicula crassicaulis Robert M. Lloyd 1963-3-17 2143 Contra Costa on Skyline <Drive> (across from 7090 Skyline) .5 mi e intersection of Grizzly Peak Rd and Skyline Drive (Huckleberry trail); Huckleberry trail Comment
  UC1022486  Sanicula crassicaulis C. Ritchie Bell 1953-4-1 3 X504 Contra Costa Mount Diablo, at Canyon Nook Campsite Mount Diablo; , Canyon Nook Campsite Comment
  RSA0027881  Sanicula crassicaulis Barbara Ertter, Holly C. Forbes 1997-4-20 15563 Contra Costa North base of Mount Diablo, Eagle Peak Trail on NE side of Eagle Ridge below Twin Peaks. Comment
  JEPS2845 Image available Sanicula saxatilis Edw. L. Greene 1892-6-1 Contra Costa Mt. Diablo Comment
  UC194920  Sanicula saxatilis H. M. Hall 1916-5-31 10136 Contra Costa along east crest of Mount Diablo Mount Diablo 1158 Comment
  RSA97364  Sanicula saxatilis Mary L. Bowerman 1931-4-25 769 Contra Costa Mount Diablo, summit 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
  JEPS955  Sanicula tuberosa W. L. Jepson 1922-5-23 9663 Contra Costa Mount Diablo Comment
  UC1949240  Sanicula tuberosa Barbara Ertter with Michelle Seidl 1992-3-14 10914 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo; along Blue Oak Trail 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
  CDA7922  Satureja douglasii D. G. Kelch, A. G. Murdock 2005-1-16 5 .003 Contra Costa Carquinez Strait; Dutra fire road. Comment
  JEPS100052  Satureja douglasii G. Smick 2003-6-6 GAS 213 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS43797  Saxifraga californica E. W. Hicks 1917-3-24 107 Contra Costa Mount Diablo 304 Comment
  JEPS48656  Saxifraga californica Elsa Kraeger 1926-3-7 Contra Costa at Toll Gate on way to Mount Diablo Comment
  UCSC000344  Saxifraga californica H. S. Yates 1936-3-14 5357 Contra Costa Mt. Diablo, Marsh Creek 381 Comment
  RSA771187  Scandix pecten-veneris Barbara Ertter 1991-6-1 10072 Contra Costa Las Trampas Regional Wilderness in hills of Danville, paved portion of Rocky Ridge Trail ca 1 mile from parking lot 488 Comment
  CAS-BOT-BC111379  Schoenoplectus acutus var. occidentalis LeRoy Abrams 1916-7-29 6304 Contra Costa Martinez Comment
  CAS-BOT-BC111481  Schoenoplectus americanus Volney Rattan 1879-1-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC111462  Schoenoplectus californicus LeRoy Abrams 1916-7-29 6305 Contra Costa Martinez Comment
  CDA39113  Scirpus americanus A. G. Murdock 2004-6-4 323 Contra Costa Carquinez Strait Region; Pecheco Marsh. Comment
  JEPS111892  Scirpus californicus D. G. Kelch 2004-6-6 04 .229 Contra Costa Martinez - Train Station Downtown Martinez. Alhambra Creek near bay and railroad Station 2 Comment
  UC650560  Scirpus californicus Ira L. Wiggins 1930-4-18 4592 Contra Costa Levee bank Jersey Island 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
  CDA15264  Scirpus maritimus G. F. Hrusa, D. Crowe 1998-5-8 14395 Contra Costa Sacramento Delta; E end of Dow Chemical property in Pittsburg. Comment
  CDA39151  Scirpus maritimus A. G. Murdock 2004-5-28 300 Contra Costa Carquinez Strait; Luzon. Comment
  CDA23594  Scirpus microcarpus D. G. Kelch 2007-9-8 7 .58 Contra Costa Carquinez Strait; Pinole Valley Park. Comment
  SEINET3914709  Scirpus olneyi K. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4978 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough. SE portion of Bethel Slough.; 0 610 Comment
  UC584351  Scribneria bolanderi G. L. Stebbins Jr. 1937-5-1 2112 Contra Costa 1 mi s of Summerfield (Summerfield=Somersville, at the head of Walker Canyon; due s of Antioch) Comment
  PASA1037  Scrophularia californica Annetta Carter 1929-3-31 Contra Costa Near Clayton. Hills north of Mt. Diablo Comment
  JEPS95254  Scutellaria californica Steve Edwards 1991-7-15 Contra Costa Siesta Valley, E side, N of Hwy. 24 Comment
  UC723846  Scutellaria tuberosa Joseph Andorfer Ewan 1934-4-8 8767 Contra Costa head of Arroyo Cayetaus (Mount Diablo); , Arroyo Cayetaus 609 Comment
  RSA0055044  Scutellaria tuberosa Jim Shevock 1971-4-7 916 Contra Costa Mt. Diablo St. Park. 548 Comment
  CAS-BOT-BC240055  Secale cereale Alice Eastwood 1921-4-18 10313 Contra Costa Antioch Comment
  UC2028307  Sedum radiatum Barbara Ertter, Susan D'Alcamo 1998-6-12 16196 Contra Costa East end Bald Ridge Trail W of Prospectors Gap on north side of Mount Diablo summit. Comment
  UC691354  Senecio aronicoides Mary L. Bowerman 1933-5-21 2146 Contra Costa just below Grape Spring (s from Curry Canyon, Mount Diablo); Mount Diablo Comment
  JEPS37616  Senecio flaccidus var. douglasii W. L. Jepson 1923-10-4 10224 Contra Costa Brannan Island Antioch Comment
  JEPS79323  Senecio flaccidus var. douglasii Edward Lee with Annetta Carter 1935-8-17 1634 Contra Costa Antioch Comment
  JEPS111534  Senecio glomeratus D. G. Kelch 2005-5-5 05 .218 Contra Costa Point Pinole - Giant Marsh Giant Salt Marsh 3 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
  UC651289  Senecio vulgaris Ira L. Wiggins 1930-4-18 4597 Contra Costa n end Jersey Island Comment
  CAS-BOT-BC80265  Sequoia sempervirens John Thomas Howell 1925-10-11 1500 Contra Costa Moraga Ridge, Oakland Hills Comment
  RSA572195  Sequoia sempervirens L. S. Rose 1934-1-29 34009 Contra Costa Redwood Canyon Comment
  CDA37437  Sesbania punicea D. G. Kelch, Mike Perlmutter 2011-9-23 11 .764 Contra Costa Antioch. Dow Wetlands. 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
  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
  SJSU10109  Silene gallica R. L. Fisher 1958-5-10 Contra Costa Nortonville near Clayton Comment
  CAS-BOT-BC74934  Sinapis arvensis Ira L. Wiggins 1930-4-18 4611 Contra Costa Jersey Island. Comment
  CHSC21619  Sinapis arvensis Willis Ball 1974-4-21 427 Contra Costa Contra Loma Regional Park. In island in center of main parking lot at s end of lake. 36 Comment
  UC691084  Sinapis arvensis Mary L. Bowerman 1938-5-25 3634 Contra Costa North Road 2 mi from North Gate (Mount Diablo); , North Road 182 Comment
  UCD115408  Sinapis arvensis Morris Halperin 1929-4-21 s.n. Contra Costa Franklin Canon. Comment
  JEPS100079  Sisymbrium officinale A. Langston 2003-6-19 AL 48 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS64283  Sisyrinchium bellum W. L. Jepson 1922-5-23 9670 Contra Costa n slope Mount Diablo Comment
  JEPS75489  Sisyrinchium bellum P. F. Yorks 1974-4-28 139 Contra Costa 1.5 km s of Bear Creek Road (on Hampton Road, n of Briones Reservoir); Hampton Road Natural Reserve 160 Comment
  JEPS125629  Sium suave Daniel Slakey with CNPS Volunteers 2015-9-12 228 Contra Costa Central part of large slough that runs north-south through Browns Island; east side of slough. Comment
  CDA39383  Smilacina racemosa A. G. Murdock 2004-4-3 245 Contra Costa Vaca Canyon. Comment
  UC691761  Solanum americanum Mary L. Bowerman 1931-8-29 1029 Contra Costa Mount Diablo, Sheep Camp Spring, by west road Sheep Camp Spring; Mount Diablo, Sheep Camp Spring Comment
  UC2028094  Solanum americanum Barbara Ertter, Chris Thayer 1996-10-25 15384 Contra Costa West side of Mount Diablo, North Gate Road near ranches. Comment
  CAS-BOT-BC157455  Solanum umbelliferum J. T. Howell 1933-5-14 11291 Contra Costa Hills east of St. Mary's College Comment
  CAS-BOT-BC83606  Solanum umbelliferum J. McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  JEPS12078  Solanum umbelliferum J. Burtt Davy 1895-4-7 985 Contra Costa Antioch Comment
  POM280561  Solanum umbelliferum Lyman D. Benson 1931-3-18 2658 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 Comment
  UC456217  Solanum umbelliferum I. J. Condit 1908-8-20 Contra Costa Oakley Comment
  UC691749  Solanum umbelliferum Mary L. Bowerman 1930-6-5 258 Contra Costa Mount Diablo, West Road = North Road, 5.8 mi from entrance Mount Diablo 457 Comment
  UCR142470  Solanum umbelliferum Dr. H. de Forest 1930-4-6 s.n. Contra Costa San Francisco Bay Region, SE of Nortonville, SW of Antioch, east of Concord 274 Comment
  RSA427350  Solanum umbelliferum H. de Forest 1930-4-6 s.n. Contra Costa S.E. of Mortonville. Small coal mine ravine. 244 Comment
  SEINET6186041  Solanum umbelliferum P. Del Monte 1976-3-28 s.n. Contra Costa Morgan Territory Rd., 1 miles north of Curry Creek Park 122 Comment
  UCD15025  Solanum umbelliferum Jennifer Roth 1979-4-13 11 Contra Costa Clayton, CA, Concord Mt. Diablo Trail Ride Assoc. grounds, Russelman Park Road off Marsh Creek Road. 396 Comment
  JEPS78880  Solidago velutina subsp. californica Edward Lee 1936-12-12 2608 Contra Costa s Berkeley Country Club Comment
  UC691439  Sonchus oleraceus Mary L. Bowerman 1932-4-27 1369 Contra Costa w facing bank of ridge w Riggs Canyon (Oyster Ridge, Mount Diablo); Mount Diablo, s face Oyster Ridge Comment
  CAS-BOT-BC374592  Sonchus oleraceus Ira L. Wiggins 1930-4-18 4608 Contra Costa Jersey Island Comment
  RSA760658  Sonchus oleraceus William J. Ferlatte, L. Maynard Moe 1970-4-27 1222 Contra Costa San Francisco Bay, Red Rock Island. Comment
  CDA2506  Sorghum halepense D. G. Kelch, A. G. Murdock 2004-5-9 4 .209 Contra Costa Carquinez Strait Region; Crockett - Carquinez Scenic Drive. Scenic Drive west of Bull Valley Staging Area, east of Crockett, CA Comment
  UC1780870  Spartium junceum R. Schmid 2003-5-11 2003 -13 Contra Costa Wildcat Creek Trail, N side and NW end of (E of Belgium Trail) Wildcat Canyon Regional Park (NW of broad part of old paved road) 76 Comment
  UCD108505  Spartium junceum Rudolf Schmid 2003-5-11 2003 -13 Contra Costa Wildcat Canyon Regional Park, north side and northwest end (east of Belgium Trail) of Wildcat Creek Trail, northwest of broad part of old paved road. 76 Comment
  UCD99169  Spergula arvensis P. B. Kennedy 1914-3-15 4658 Contra Costa Sunset Cemetary. Comment
  UC1795660  Spergula arvensis subsp. arvensis Barbara Ertter, Gary Schoolcraft, Tony Morosco 1996-4-6 14565 Contra Costa Knobcone Point Road northeast of Knobcone Point in Mt Diablo State Park, near junction of north heading spur road, roadside in open oak woodland. Comment
  UC1818860  Spergula arvensis subsp. arvensis Barbara Ertter, Kristin Ertter 1995-7-11 14467 Contra Costa Diablo Foothills Regional Park, dried road bed at base of east-facing cliff. 121 Comment
  UC1818861  Spergularia bocconi Barbara Ertter, Kristin Ertter 1995-7-11 14468 Contra Costa Diablo Foothills Regional Park, dried road bed at base of east-facing cliff. 121 Comment
  UCSB61645  Spergularia macrotheca Ertter, Barbara; Jokerst, Jim; Magney, David 1989-4-5 Contra Costa SE Contra Costa CO.; alkali sink W and adjacent to Clifton Court Forebay, ca. 15 air miles SW of Stockton, T1S R3E Sec. 24 SESW, near sea level Comment
  CDA9448  Spergularia macrotheca var. longistyla D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .226 Contra Costa Byron Airport. Comment
  NY482309  Spergularia macrotheca var. longistyla B. J. Ertter 1989-4-5 8113 Contra Costa Alkali sink W and adjacent to Clifton Court Forebay, ca 15 air miles SW of Stockton, near sea level Comment
  RSA518738  Spergularia macrotheca var. longistyla Barbara Ertter 1989-4-5 8113 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  UC1948956  Spergularia macrotheca var. macrotheca William J. Ferlatte, L. Maynard Moe 1970-4-27 1265 Contra Costa San Francisco Bay: Red Rock Island Comment
  RSA0098749  Spergularia macrotheca var. macrotheca Barbara Ertter 1990-10-14 9661 Contra Costa Point Isabel Regional Shoreline on San Francisco Bay in SW El Cerrito. Comment
  CDA15279  Spergularia marina G. F. Hrusa, D. Crowe, R. York 1998-7-17 14717 Contra Costa Sacramento Delta; E end of Dow Chemical property at Pittsburg. Comment
  CDA24134  Spergularia marina D. G. Kelch 2006-7-14 6 .328 Contra Costa Carquinez Strait; Along Marine Vista Ave immmediately west of Pacheco Slough. East of Martinez. Comment
  UC2028173  Spergularia marina Barbara Ertter 1998-5-3 16049 Contra Costa Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. Comment
  JEPS99546  Spergularia rubra Mary Bowerman 1975-4-19 Contra Costa Mount Diablo, Mitchell Canyon. 256 Comment
  UC1618136  Spergularia villosa Barbara Ertter with Chris Thayer and Dianne Lake 1996-5-16 14680 Contra Costa w of Richmond (Point Molate Naval Fuel Depot overlooking San Francisco Bay, around Tank 14); San Francisco Bay, Point Molate Naval Fuel Depot Comment
  UC1555268  Stachys ajugoides var. rigida R. C. Stebbins 1988-5-25 Contra Costa Memory and Packrat trails Tilden Park, Tildne Nature Area Comment
  UC416579  Stachys ajugoides var. rigida Ivar Tidestrom June, 1895 Contra Costa Crockett Comment
  UC691663  Stachys ajugoides var. rigida Mary L. Bowerman 1933-6-3 2228 Contra Costa 2 mi by road from w entrance (= North Gate); Mount Diablo Comment
  POM312580  Stachys albens Malcolm A. Nobs, S. Galen Smith 1949-7-8 943 Contra Costa Otto s Black Bass Resort, 4 miles north of Kingston. Comment
  UC1191915  Stachys albens Malcolm A. Nobs, S. Galen Smith 1949-7-8 943 Contra Costa 4 mi n Kingston (Otto's Black Bass Resort) Comment
  CDA33902  Stachys pycnantha Swan/Fonseca 2008-9-11 PDR# 1454523 Contra Costa Concord; Pine Creek 0 Comment
  JEPS111782  Stellaria media D. G. Kelch 2003-3-21 03 .58 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  UC2028259  Stellaria pallida Barbara Ertter 1999-6-12 16721 Contra Costa Knobcone Point Road on south side of Mount Diablo, burned chamissal at head of NE fork of Sycamore Creek. Comment
  CAS-BOT-BC375205  Stephanomeria elata John Thomas Howell 1925-11-1 1544 Contra Costa Moraga Ridge, Oakland Hills Comment
  UC2028016  Stephanomeria elata Barbara Ertter 1997-9-14 15819 Contra Costa Southwest side of Mount Diablo, Wall Point Road on open sandstone ridge northwest of Wall Point/ Comment
  SEINET11800583  Stephanomeria virgata L. S. Rose 1938-1 38308 Contra Costa Marsh Creek, 6 mi E of Clayton 152 Comment
  UC691440  Stephanomeria virgata subsp. pleurocarpa Mary L. Bowerman 1930-8-31 441 Contra Costa s face Black Hills (roadside); Mount Diablo Comment
  SEINET10603924  Stipa pulchra Alan A. Beetle 1941-3-28 Beetle 1718 Contra Costa Orinda, in sandy soil of open cut. Comment
  SEINET10926660  Stipa pulchra Frank W. Gould 1941-4-20 Gould 1281 Contra Costa Coastal bluffs near Richmond, associated with Melica californica. Comment
  UC10873  Streptanthus albidus subsp. peramoenus J. Burtt Davy 1893-5-13 212 Contra Costa Claremont Canyon to Fish Ranch fide fieldbook Comment
  UC592149  Streptanthus albidus subsp. peramoenus H. L. Mason 1928-4-26 4389 Contra Costa hillsides Berkeley hills Comment
  CAS-BOT-BC87097  Streptanthus glandulosus subsp. glandulosus John Thomas Howell 1942-5-24 16965 Contra Costa Near Deer Flat, Mount Diablo. Comment
  CAS-BOT-BC87098  Streptanthus glandulosus subsp. glandulosus John Thomas Howell 1942-7-19 17048 Contra Costa Northeast of Deer Flat, Mount Diablo. Comment
  UC2028978  Streptanthus glandulosus subsp. glandulosus Barbara Ertter 2000-5-14 17020 Contra Costa Donner Basin on north side of Mount Diablo, switchbacks on Cardinet Oaks Road. Comment
  CAS-BOT-BC87333  Streptanthus hispidus Lewis S. Rose 1935-5-16 35171 Contra Costa Mount Diablo, summit. Comment
  CAS-BOT-BC87334  Streptanthus hispidus Paul F. Covel 1938-5-8 1510 Contra Costa Summit Mount Diablo (North Peak trail). Comment
  CAS-BOT-BC87341  Streptanthus hispidus H. N. Bolander; Kellock M. D. s.n. Contra Costa Monte De Diablo. Comment
  CAS-BOT-BC87345  Streptanthus hispidus Mrs. E. C. Sutliffe 1920-5-30 s.n. Contra Costa Mount Diablo. Comment
  UC402742  Streptanthus hispidus H. M. Hall 1916-5-31 10139 Contra Costa w side Mt. Diablo 1097 Comment
  UC10898  Streptanthus tortuosus var. orbiculatus McLean 1800-1 Contra Costa Mount Diablo Comment
Read comments Jan 11 2013
  UC88443  Stylocline gnaphaloides Miss Alice Eastwood 1893-5-5 Contra Costa Brentwood Comment
  CAS-BOT-BC422910  Stylomecon heterophylla John Thomas Howell 1933-5-14 11269 Contra Costa Hills east of St. Mary's College Comment
  CAS-BOT-BC422914  Stylomecon heterophylla Volney Rattan 1883-4-1 s.n. Contra Costa Martinez Comment
  JEPS75654  Stylomecon heterophylla W. L. Jepson 1925-4-26 10683 Contra Costa Black Hills Mt. Diablo; , Black Hills Comment
  JEPS77536  Stylomecon heterophylla Margaret Ely 1978-5-3 Contra Costa n side of Mount Diablo, along Back Creek Back Creek; Mount Diablo, Back Creek 304 Comment
  LA46177  Stylomecon heterophylla J. A. Ewan; 1935-5-26 9301 Contra Costa Bald Peak, San Pablo Ridge 548 Comment
  RSA446228  Stylomecon heterophylla Glenn A. Gorelick 1967-5-20 s.n. Contra Costa Russelman Park, Mt. Diablo State Park Comment
  SEINET6034092  Symphoricarpos albus E. E. Stanford 1930-5-24 1509 Contra Costa Marsh Creek Canyon. Comment
  CDA23107  Symphoricarpos mollis D. G. Kelch, D. A. Weinstein 2008-4-25 8 .084 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
  JEPS111776  Symphoricarpos mollis D. G. Kelch 2005-5-1 05 .181 Contra Costa Crockett - Edwards Canyon 150 Comment
  UC1005951  Symphoricarpos orbiculatus N. Floy Bracelin 1943-3-8 2430 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC97699  Symphyotrichum chilense Elizabeth McClintock; Stephen Rae 1978-8-3 s.n. Contra Costa Suisun Bay, Antioch 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
  UC892918  Symphyotrichum subulatum Lewis S. Rose 1938-10-28 38312 Contra Costa Byron 3 Comment
  UC912542  Symphyotrichum subulatum Herbert L. Mason 1929-9-21 5439 Contra Costa 1 mi from junction of Borden Highway and road to Antioch 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
  CAS-BOT-BC99396  Symphyotrichum subulatum var. parviflorum W. L. Jepson 1891-9-16 s.n. Contra Costa at New Town landing, Lower Sacramento River Comment
  CDA31087  Taeniatherum caput-medusae D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .226 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  JEPS87946  Tamarix parviflora Barbara Ertter 1993-4-2 11480 Contra Costa w of Crockett (below Vista Road, abandoned railroad station); Carquinez Regional Park Comment
  UC691419  Tauschia hartwegii Mary L. Bowerman 1933-4-26 1936 Contra Costa North Peak Mount Diablo (ridge running se from the peak); , , ridge running se from peak 518 Comment
  UCD96956  Tetragonia tetragonoides G. Thomas Robbins 1958-7-19 3906 Contra Costa Pt. Orient, San Francisco Bay, about 3/4 mile south of Pt. San Pablo, Potrero San Pablo, Richmond. Comment
  UCD96763  Thalictrum fendleri var. polycarpum Margaret Siri 1974-5-12 39 Contra Costa East-west canyon off-shoot, east of the bottom of Rifle Range Road, Wildcat Canyon. Comment
  CAS-BOT-BC88249  Thysanocarpus curvipes Alice Eastwood 1923-5-4 11702 Contra Costa Mount Diablo. Comment
  CAS-BOT-BC88250  Thysanocarpus curvipes Alice Eastwood 1923-5-4 11711 Contra Costa Mount Diablo. Comment
  CAS-BOT-BC88252  Thysanocarpus curvipes John Thomas Howell 1933-5-14 11274 Contra Costa Hills east of Saint Mary's College. Comment
  CAS-BOT-BC88260  Thysanocarpus curvipes Lewis S. Rose 1933-4-17 33096 Contra Costa Antioch. Comment
  CAS-BOT-BC88262  Thysanocarpus curvipes Mrs. E. C. Wright 1917-6-1 s.n. Contra Costa Mount Diablo. Comment
  CDA1354  Thysanocarpus curvipes D. G. Kelch 2004-3-13 4 .041 Contra Costa Mt Diablo Region.; Road cut along Marsh Creek Rd about 1.5 miles W of Deer Valley Rd. Comment
  UC1543094  Thysanocarpus curvipes Donald G. Nelson 1937-3-30 465 Contra Costa on bank of creek along Marsh Creek Highway about halfway between Clayton and Byron; along Marsh Creek Highway Comment
  UC691060  Thysanocarpus curvipes Mary L. Bowerman 1933-4-15 1879 Contra Costa second ridge s of Arroyo del Cerro Mount Diablo (crest of ridge, Mount Diablo); , s of Arroyo del Cerro Comment
  UC2027924  Thysanocarpus curvipes Barbara Ertter, Dan Norris 2001-4-8 17576 Contra Costa Lime Ridge Open Space east of Walnut Creek, east side of main ridge. Comment
  UC2028333  Thysanocarpus curvipes subsp. elegans Barbara Ertter 1991-5-5 9777 Contra Costa Black Diamond Mines Regional Preserve S of Pittsburg, ridge E of Coal Canyon Comment
  RSA0039372  Thysanocarpus curvipes var. curvipes Harley P. Chandler 1901-4-5 940 Contra Costa Mt. Diablo, Pine Canyon. Comment
  RSA0039373  Thysanocarpus curvipes var. curvipes John Thomas Howell 1934-4-8 11821 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
  UC10988  Thysanocarpus laciniatus W. H. Brewer 1862-5-17 1102 Contra Costa on dry hill n Mount Diablo; n of Mount Diablo Comment
  UC10983  Thysanocarpus laciniatus W. H. Brewer 1862-5-14 1097 Contra Costa dry rocky spurs Mount Diablo Comment
  CDA33815  Tonella tenella D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .112 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  JEPS111507  Torilis arvensis D. G. Kelch 2005-5-13 05 .269 Contra Costa Martinez - South Tall hill in South Martinez and North of I-4 96 Comment
  UC17924  Toxicodendron diversilobum W. H. Brewer 1862-5-10 1068 Contra Costa near Clayton Clayton Comment
  CAS-BOT-BC172938  Toxicodendron diversilobum B. Lacoste 1920-10-1 s.n. Contra Costa On hill slope by Lake Aliso Comment
  SEINET5577082  Toxicodendron diversilobum H. S. Gentry 1931-1 56 Contra Costa Collected on Mt. Diablo near Buckle Point. Comment
  CHSC75068  Tragopogon porrifolius Roger Thom 1987-5-18 11 Contra Costa 0.15 mi. from west intersection with Stanley Blvd. on Camino Diablo. Lafayette. Shoulder of road. 30 Comment
  CDA4742  Tribulus terrestris A. G. Murdock, D. G. Kelch 2004-5-28 305 Contra Costa Carquinez Strait; Luzon. Comment
  UC570718  Trichostema lanceolatum Herbert L. Mason 1923-11-12 854 Contra Costa Mount Diablo, middle slopes Comment
  UC555621  Trifolium albopurpureum H. L. Mason 1929-3-29 5130 Contra Costa 2 mi above Clyton Rd (Marsh Creek Rd) Comment
  UCD38574  Trifolium albopurpureum Beecher Crampton 1956-5-14 3399 Contra Costa Headwaters of Marsh Creek, southeast of Mt. Diablo. 640 Comment
  UC148552  Trifolium albopurpureum var. albopurpureum Katharine Brandegee 1909-4-24 Contra Costa Antioch Comment
  UC165535  Trifolium albopurpureum var. dichotomum J. Burtt Davy 1895-1 949 Contra Costa Antioch Comment
  UC630753  Trifolium albopurpureum var. dichotomum Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  UC2028277  Trifolium albopurpureum var. dichotomum Barbara Ertter, Susan D'Alcamo 1999-4-18 16503 Contra Costa Bald Ridge Trail on NW side of Mount Diablo summit. Comment
  UC630752  Trifolium albopurpureum var. dichotomum unknown Sep 1907 Contra Costa Antioch Comment
  JEPS123455  Trifolium angustifolium Zoya Akulova-Barlow 2011-4-29 s.n. Contra Costa Wildcat Canyon Regional Park. Belgium Trail. Comment
  CDA27904  Trifolium bifidum var. decipiens D. G. Kelch, A. G. Murdock 2005-5-6 05 -226 Contra Costa Carquinez Strait Region; Franklin Canyon. East of Christie Road. South of Route 4. Comment
  UC16436  Trifolium bifidum var. decipiens J. Burtt Davy 1900-3-24 6517 Contra Costa Stege Comment
  UC631337  Trifolium bifidum var. decipiens Mrs. K. Brandegee 1907-5-1 Contra Costa Antioch Comment
  POM300697  Trifolium bifidum var. decipiens Mary L. Bowerman 681 Contra Costa South of Russelman Parak. 381 Comment
  RSA0033775  Trifolium campestre Barbara Ertter, Richard K. Brummitt 1998-5-6 16095 Contra Costa Donner Canyon Trail near Regency Drive trailhead, north base of Mount Diablo. 182 Comment
  UC2028114  Trifolium campestre Barbara Ertter with Richard K. Brummitt 1998-5-6 16095 Contra Costa Donner Canyon Trail near Regency Drive trailhead, north base of Mount Diablo. Comment
  SBBG29985  Trifolium ciliolatum J. T. Howell 1933-5-14 11245 Contra Costa hills E of St Mary's College Comment
  UC146899  Trifolium ciliolatum Katharine Brandegee may 1907 Contra Costa Antioch Comment
  UC692251  Trifolium ciliolatum Mary L. Bowerman 1932-4-27 1363 Contra Costa w Riggs Canyon (Oyster Ridge, s face); Mount Diablo 762 Comment
  RSA0068498  Trifolium ciliolatum Katie Gallagher, Nick Jensen 2014-4-26 176 Contra Costa Las Trampas Regional Wilderness. 365 Comment
  RSA135400  Trifolium ciliolatum Volney Rattan s.n. Contra Costa Alhambra Valley Comment
  UC16529  Trifolium depauperatum var. amplectens C. Michener 1891-4-23 Contra Costa Point Isabel Comment
  UC630976  Trifolium depauperatum var. amplectens unknown 1928-4-19 10043 Contra Costa near Golf Links; Byron Hot Springs Comment
  UC631084  Trifolium depauperatum var. amplectens Mrs. K. Brandegee 1907-5-8 Contra Costa Antioch Region Comment
  UCD33428  Trifolium depauperatum var. depauperatum Beecher Crampton 1968-3-27 8236 a Contra Costa SE corner of County, ca. 3.5 miles south of Byron. Comment
  PGM3951  Trifolium depauperatum var. depauperatum Vern Yadon 1998-4-26 Contra Costa Byron Hot Springs Rd near Airport, 1/4 mi fr end of Byron Hot Springs Rd Comment
  UC16570  Trifolium depauperatum var. hydrophilum J. Burtt Davy 1900-3-24 6529 Contra Costa near Santa Fe townsite (Pt. Richmond) Comment
  JEPS65731  Trifolium depauperatum var. truncatum W. L. Jepson 1917-4-14 6867 Contra Costa Oakland Hills, near Redwood Peak Comment
Read comments Dec 17 2008
  UC555354  Trifolium depauperatum var. truncatum H. L. Mason 1929-4-25 5208 Contra Costa Marsh Creek Rd Comment
  UC692685  Trifolium depauperatum var. truncatum Mary L. Bowerman 1935-4-12 2818 Contra Costa 2 mi from entrance (West (North) Rd); Mount Diablo 259 Comment
  POM301858  Trifolium depauperatum var. truncatum Mary L. Bowerman 1932-3-23 1125 Contra Costa Oak Grove School junction, between Monument and Concord Comment
  RSA517734  Trifolium depauperatum var. truncatum Donald G. Nelson 1937-3-30 476 Contra Costa Railroad tracks paralleling the highway south of Byron on road to Tracy Comment
  UCD108800  Trifolium dichotomum Mrs. Brandegee 1907-5-1 s.n. Contra Costa Antioch. Comment
  UC1618358  Trifolium dubium Barbara Ertter, Chris Thayer 1993-5-7 11713 Contra Costa 1/2 mi n of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land e of Tilden Park (s of Wildcat Canyon Road); East Bay Municipal Utilities District land Comment
  RSA0027401  Trifolium fragiferum Barbara Ertter 1999-7-17 16764 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, Wildcat Creek Trail between Rifle Range Road and boundary with Tilden Regional Park. Comment
  UC16512  Trifolium fucatum W. H. Brewer 1862-5-1 1040 Contra Costa s Camp 69; Walnut Creek Comment
  UC70194  Trifolium fucatum J. Burtt Davy 1898-5-1 Contra Costa Region of Mount Diablo, Danville Danville; Region of Mount Diablo, Danville Comment
  UC924217  Trifolium fucatum H. S. Reed 1940-4-30 356 Contra Costa Marsh Creek northeast slopes of Mount Diablo Comment
  UC1541574  Trifolium fucatum H. E. and S. T. Parks 1930-4-1 542 Contra Costa along hwy (in ditches); San Ramone Comment
  POM300704  Trifolium fucatum var. fucatum Mary L. Bowerman 1935-5-1 2940 Contra Costa West road 2.1 miles from entrance: Open grassy flat just below th road, by a hut. 183 Comment
  RSA195421  Trifolium fucatum var. fucatum C. P. Smith 1922-5-20 3532 Contra Costa Lafayette - trolly line. Comment
  RSA90947  Trifolium fucatum var. fucatum J. T. Howell 1933-5-14 11237 Contra Costa St. Mary's College. Comment
  UC165608  Trifolium gracilentum J. Burtt Davy 1895-1 926 Contra Costa Antioch Comment
  UC517488  Trifolium gracilentum John Thomas Howell 1933-5-14 11249 Contra Costa e St. Mary's College (hills) Comment
  UC631031  Trifolium gracilentum Mrs. K. Brandegee May 1907 Contra Costa Antioch Comment
  UC692691  Trifolium gracilentum Mary L. Bowerman 1932-4-27 1389 Contra Costa w Riggs Canyon (Oyster ridge, s face of canyon); Mount Diablo Comment
  UC70197  Trifolium gracilentum J. Burtt Davy May 1898 Contra Costa Danville Comment
  UC2027842  Trifolium gracilentum Barbara Ertter with Dan Norris 2001-4-15 17612 Contra Costa Eest side Mount Diablo, divide NW of pond at base of China Wall formation Comment
  CDA8356  Trifolium hirtum D. G. Kelch, A. G. Murdock 2005-4-15 5 .148 Contra Costa Carquinez Strait; In East Bay Regional Park land W of Cumming s Skyway near Summit (nr old C&H Sugar diatomaceous earth dump). Comment
  CDA15258  Trifolium hybridum G. F. Hrusa, D. Crowe 1998-5-8 14389 Contra Costa Sacramento Delta; E end of Dow Chemical property in Pittsburg. Comment
  UC1952814  Trifolium incarnatum Barbara Ertter 2010-5-12 19830 Contra Costa Miller Knox Regional Shoreline at south edge of Point Richmond; along West Ridge Trail Comment
  UC692248  Trifolium microdon Mary L. Bowerman 1931-4-25 752 Contra Costa 2 mi from west entrance (=North Gate); Mount Diablo 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
  POM301852  Trifolium microdon Mary L. Bowerman 1935-4-19 2870 Contra Costa Road about 7 miles from North Gate, ridge west of the power poles, above the road junction. 701 Comment
  UC2028985  Trifolium oliganthum Barbara Ertter 2000-5-14 17010 Contra Costa Donner Canyon on north side of Mount Diablo, SW end of Falls Trail between Middle Trail and Donner Creek crossing. Comment
  UCD32493  Trifolium olivaceum Beecher Crampton 1950-4-22 534 Contra Costa Contra Costa County, along State Highway 4, in Concord Valley. 30 Comment
  UC2027720  Trifolium variegatum Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15514 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  UC16776  Trifolium variegatum var. melananthum J. Burtt Davy 1900-3-24 6515 Contra Costa Stege; Western MIddle California, Stege Comment
  CDA29759  Trifolium willdenovii D. G. Kelch, Troy MacGregor 2009-5-1 9 .264 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  SEINET4178511 Image available Trifolium willdenovii P. B. Kennedy 1928-1 10036 Contra Costa Byron Comment
  POM18879  Trifolium willdenovii H. P. Chandler 1901-3-22 841 Contra Costa Concord. Comment
  UCD138178  Triglochin maritima Mr. Nevin 1924-3-24 s.n. Contra Costa Antioch. Comment
  UC367060  Trillium chloropetalum J. G. Lemmon April, 1878 Contra Costa Mt. Diablo and Oakland Hills Comment
  SEINET10458963  Triodanis biflora Bowerman BOWERMAN 2130 Contra Costa MT. DIABLO Comment
  JEPS15190  Triphysaria eriantha subsp. eriantha R. C. Wilson 1935-3-26 144 Contra Costa 2 mi n Walnut Creek; Concord Quad. Comment
  JEPS65192  Triphysaria eriantha subsp. eriantha L. R. Heckard 1971-4-15 2475 Contra Costa Morgan Territory road 5 1/2 mi n of its intersection with Manning road e Mt. Diablo; e of Mt. Diablo Comment
  JEPS73687  Triphysaria eriantha subsp. eriantha L. R. Heckard with Wm. Hirano and Ted Niehaus 1968-3-5 1756 Contra Costa along Byron-Bethany road at junction of Holey Road about 3 mi se Byron 7 Comment
  UC1211917  Triphysaria eriantha subsp. eriantha John H. Weiler 1961-3-7 6127 Contra Costa at the junction of Byron Road and Holey Road Comment
  UC27186  Triphysaria eriantha subsp. eriantha J. Burtt Davy 1897-3-29 3019 Contra Costa near Black Diamond Comment
  CHSC116658  Triphysaria pusilla Lowell Ahart; Josephine Guardino 2016-4-19 20780 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the sides of the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  CDA41896  Triphysaria versicolor subsp. faucibarbata D. G. Kelch 2005-3-26 5 .097 Contra Costa Carquinez Strait Region; Pinole Peak. Fernandez Ranch, south side - road from Perreria Road to Pinole Peak Ridge. Comment
  JEPS58045  Triteleia laxa Helen Bergfried 1918-5-12 Contra Costa vicinity Berkeley; , Wildcat Creek Comment
  POM203716  Triteleia laxa J. T. Howell 1931-5-12 6468 Contra Costa Oakland Hills Comment
  SEINET12044746  Triteleia laxa J. T. Howell 1931-1 6468 Contra Costa Oakland Hills 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
  POM311159  Tropidocarpum capparideum Robert F. Hoover 1936-3-19 806 Contra Costa Byron Hot Springs Comment
  UC14396  Tropidocarpum capparideum Edw. L. Greene 1889-3-23 Contra Costa Byron Springs Comment
  CAS-BOT-BC67402  Tropidocarpum gracile Alice Eastwood 1914-3-14 3783 Contra Costa Byron Springs. Comment
  CAS-BOT-BC67411  Tropidocarpum gracile Volney Rattan s.n. Contra Costa Antioch. Comment
  UC14397  Tropidocarpum gracile Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  UC64343  Tropidocarpum gracile H. M. Hall 1901-4-5 1742 Contra Costa Pine Canyon Region of San Francisco Bay, Mt. Diablo Comment
  UC673305  Tropidocarpum gracile H. L. Mason 1929-3-31 5152 Contra Costa sand dike along river at Antioch; San Joaquin River Comment
  UC857585  Tropidocarpum gracile Lewis S. Rose 1940-4-30 40249 Contra Costa open fields five mi e Clayton; Marsh Creek 60 Comment
  UC1241770  Typha Malcolm A. Nobs and S. Galen Smith 1949-6-28 879 Contra Costa on road to Martinez about two mi s Crockett Comment
  UC2070593  Ulmus pumila Barbara Ertter 2001-3-18 Contra Costa Shell Ridge Open Space SW of Walnut Creek, persisting at Indian Creek School. Comment
  CAS-BOT-BC91092  Umbellularia californica Annetta Carter 1937-3-20 1224 Contra Costa Lake Orinda Road, two miles northwest of Orinda. 121 Comment
  JEPS75485  Umbellularia californica P. F. Yorks 1974-2-3 108 Contra Costa 1.6 km s of Bear Creek Road (n of Briones Reservoir on Hampton Road in Hampton Road Natural Reserve); Hampton Road Natural Reserve 170 Comment
  UC1126321  Umbellularia californica R. W. Lundh 1932-9-22 168 Contra Costa 1/2 mi sw of Mount Diablo 914 Comment
  JEPS36207  Uropappus lindleyi W. L. Jepson 1922-5-23 9669 Contra Costa n slope Mt. Diablo; n slope Mt. Diablo Comment
  UC691466  Uropappus lindleyi Mary L. Bowerman 1932-4-27 1396 Contra Costa canyon w Riggs Canyon (s face Oyster Ridge, Mount Diablo); Mount Diablo, s face Oyster Ridge 335 Comment
  JEPS111918  Urtica dioica var. holosericea Dean G. Kelch and Andrew G. Murdock 2004-3-12 DGK 04 .018 Contra Costa Pinole Valley. Hillside and canyon above Wright Road. Off the Pinole Valley Road. Comment
  UC723797  Verbena lasiostachys var. lasiostachys Joseph Andorfer Ewan 1936-7-5 9726 Contra Costa Wildcat Creek near CCC camp Wildcat Creek Comment
  UC139763  Verbena lasiostachys var. scabrida Katharine Brandegee 1907-7-4 Contra Costa Between Martinez and Port Costa Comment
  UC691535  Verbena lasiostachys var. scabrida Mary L. Bowerman 1930-6-28 393 Contra Costa Lower Silver Spring: Edge of marshy spot. Comment
  UC1050716  Viburnum trilobum N. Floy Bracelin August, 1941 1134 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UCD38561  Vicia americana var. americana Beecher Crampton 1956-5-14 3426 Contra Costa 4 miles west of Martinez on the road to Crockett, above Port Costa Brick Works. Comment
  UC33544  Vicia hassei Chesnut and Drew 1889-4-18 Contra Costa Clayton Comment
  CDA