Search Results — 2000 specimen records retrieved (1375 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UC1618268  Abutilon theophrasti Barbara Ertter with CNPS 1990-8-19 9622 Contra Costa E side of S end of Briones Reservoir N of Orinda, along Bear Creek trail on EBMUD land, near junction of main trail and path to Briones Overlook Staging Area 182 Comment
  UCD116164  Abutilon theophrasti R. P. Allen; Perry Allen 1961-8-11 s.n. Contra Costa Adventive four miles east of Byron. Comment
  UC1719700  Acacia baileyana Barbara Ertter 1997-1-5 15430 Contra Costa Ygnacio Valley Road across Lime Ridge, S-facing roadcut Comment
  UC1779710  Acacia dealbata Rudolf Schmid 1997-5-21 1997 -13 Contra Costa Hillside Natural Area, El Cerrito; NW of King Ct. entrance. 175 Comment
Read comments
Mar 25 2010
  UC1607582  Acacia melanoxylon Barbara Ertter 1991-5-12 9815 Contra Costa in sw corner of El Cerrito (Point Isabel Regional Shoreline, along old railroad right-of-way between bay and salicornia marsh, on San Francisco Bay); San Francisco Bay, Point Isabel Regional Shoreline Comment
  UC1051238  Acacia retinodes N. Floy Bracelin 1942-9-13 2291 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1719704  Acacia retinodes Barbara Ertter with Richard Rabeler 1994-6-2 12820 Contra Costa edge of San Francisco Bay on point S of Central Avenue at Point Isabel Comment
  SD45087  Acacia verticillata W. W. Jones 1927-4-5 Contra Costa Crockett Comment
  UC12000  Acaena pinnatifida var. californica H. M. Hall 1901-3-16 1655 Contra Costa Point Richmond Region of San Francisco Bay, Point Richmond Comment
  SD45088  Acer macrophyllum W. Jones 1927-6-2 Contra Costa Crockett Comment
Read comments
Jul 11 2010
  SEINET4172014 Image available Acer macrophyllum Robert A. Norris, John L. Inase 1981-1 4146 Contra Costa Abrigo Valley Trail, NW part of Briones Regional Park (ca. 3 mi. NNW Lafayette) 274 Comment
  JEPS111583  Acer negundo D. G. Kelch 2005-4-17 05 .155 Contra Costa Hercules Hwy 80 west between Cummings Skyway and Route 4 exit 40 Comment
  CAS-BOT-BC334183  Acer negundo var. californicum Annetta Carter 1926-3-27 1384 Contra Costa San Leandro Canyon; Concord USGS 152 Comment
  CAS-BOT-BC334185  Acer negundo var. californicum Alice Eastwood 1914-2-24 3734 Contra Costa Antioch Comment
  JEPS42724  Acer negundo var. californicum W. L. Jepson 1908-8-16 3088 Contra Costa 2 mi w Walnut Creek; w of Walnut Creek Comment
  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
  UC1540475  Acer negundo var. californicum Annetta Carter 1937-4-4 1229 Contra Costa 2 1/2 mi n Moraga (Moraga Valley); , Creek bank, n of Moraga 182 Comment
  JEPS111675  Achillea millefolium D. G. Kelch 2003-8-13 03 .102 Contra Costa Martinez Marsh 0 Comment
  JEPS111751  Achillea millefolium D. G. Kelch 2005-4-15 05 .152 Contra Costa Rodeo Creek EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump) 220 Comment
  UCD128411  Achyrachaena mollis P. B. Kennedy 1925-4-26 s.n. Contra Costa Mt. Diablo, below road to Country Club reservoir. Comment
  RSA0068490  Acmispon brachycarpus Katie Gallagher, Nick Jensen 2014-4-26 184 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  JEPS112353  Acmispon glaber Dean G. Kelch and Andrew G. Murdock 2004-4-3 04 .054 Contra Costa Crockett - Tormey Headlands, County: Contra Costa; Road cut west of I-80 and Cummings Skyway junction. Comment
  UCD104120  Acmispon glaber P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo Summit. Comment
  UCD128498  Acroptilon repens Collector unknown 1928-8-1 1428 Contra Costa Richmond. Comment
  UC691159  Adenostoma fasciculatum Mary L. Bowerman 1930-6-5 256 Contra Costa w. (North Rd.) 5.8 mi. from entrance Mt. Diablo Comment
  UC70330  Adenostoma fasciculatum J. B. Davy 1897-1 Contra Costa Moraga Comment
  UC721201  Adenostoma fasciculatum Rogers McVaugh 1941-7-29 6169 Contra Costa 5 mi. e. Berkeley (Moraga Ridge); Moraga Ridge 304 Comment
  JEPS112048  Adiantum jordanii D. G. Kelch 2005-1-21 05 .6 Contra Costa Crockett - West Valona Collected along railroad tracks in West Valona across from the decommissioned sewage treatment plant. On north-facing slopes with Quercus agrifolia and Heteromeles arbulifolia and Pinus pinea 8 Comment
  JEPS112052  Adiantum jordanii A. G. Murdock 2004-2-12 206 Contra Costa Franklin Canyon - McHarry Ranch Rd 126 Comment
  SEINET3868330 Image available Adiantum jordanii Clayton Newberry 1994-4-30 7255 Contra Costa Mount Diablo State Park, trail from Mitchell Cn. Prkng to Donner Cr.; 0 900 Comment
  CHSC22658  Aesculus californica Robert A. Schlising 1965-1-24 2740 Contra Costa North of Briones Reservoir along Hampton Road; 1.1 mi S of Jct with Garcia Ranch Road. Comment
  UC18188  Aesculus californica Ivar Tidestrom Jun 1895 Contra Costa Comment
  SEINET12232133  Aesculus californica M. T. Dorett 1930-1 77 Contra Costa Marsh Creek Comment
  UC2061505  Ageratina adenophora Dean G. Kelch 2016-5-27 16 .132 Contra Costa Miller-Knox Hill. Comment
  UCD128436  Agoseris grandiflora Beecher Crampton 1956-5-14 3400 Contra Costa Mount Diablo, south of Windy Point. Comment
  UC29357  Agoseris heterophylla var. heterophylla H. M. Hall 1901-4-5 1726 Contra Costa Mt. Diablo; San Francisco Bay region Comment
  UC691793  Agoseris heterophylla var. heterophylla Mary L. Bowerman 1933-5-11 2093 a Contra Costa Rock City Ridge; Mt. Diablo Comment
  UC29385  Agoseris retrorsa F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  UC691431  Agoseris retrorsa Mary L. Bowerman 1931-4-25 783 Contra Costa summit Meridian Peak; Mount Diablo Comment
  POM319553  Agrostis Patricia Wilder 1961-8-27 1066 Contra Costa Walnut Creek, near Calif. Hwy 24. 24 Stanley Court. 42 Comment
  JEPS96230  Agrostis avenacea Barbara Ertter, Brad Olson 1991-9-28 10831 Contra Costa San Pablo Reservoir between Orinda and El Sobrante (at s. end of reservoir); San Pablo Reservoir 91 Comment
  UC692410  Agrostis exarata Mary L. Bowerman 1933-9-9 2434 Contra Costa edge of spring Mount Diablo, Frog Pond Comment
  CAS-BOT-BC127339  Agrostis exarata Mary L. Bowerman 1932-11-12 1647 Contra Costa Mount Diablo. Canyon Spring. 1005 Comment
  UC2028527  Agrostis exarata Barbara Ertter 1997-11-1 15884 Contra Costa South side Mount Diablo, end of spur road east of Knobcone Point, below powerline crossing at head of Alamo Creek drainage. Comment
  UC1795639  Agrostis hallii Barbara Ertter, Mary Bowerman 1995-6-11 14256 Contra Costa Shell Ridge Recreation Area southeast of Walnut Creek, bank of Indian Creek above Indian Valley Pond, partial sun on Franciscan layer. 76 Comment
  SEINET186077  Agrostis pallens Virginia E. Long 1932-5-30 175 a Contra Costa Found along south east rim of Wildcat canyon. 396 Comment
  UCD149001  Agrostis pallens D. Kelch; Suzanne Latham, Matt Beyers 2009-6-3 09. 335 Contra Costa El Sobrante Ridge at end of Silver Belt Dr. 198 Comment
  UC2028392  Agrostis pallens Barbara Ertter with Tony Morosco 1998-9-18 16433 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, above sand quarry [subsequently developed] on south side of Ygnacio Valley Road, SE slope below water tank Comment
  UC2028465  Agrostis stolonifera Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15670 Contra Costa Martinez Regional Shoreline, south edge of Carquinez Strait Comment
  UC692383  Agrostis viridis Mary L. Bowerman 1936-8-17 3527 Contra Costa Sulphur Spring Mount Diablo, Pine Canyon 137 Comment
  JEPS111085  Aira caryophyllea Lee Echols 2003-7-7 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
  UC1606340  Alisma plantago-aquatica Barbara Ertter, Brad Olson 1991-9-28 10847 Contra Costa between Orinda and El Sobrante (s end of San Pablo Reservoir); San Pablo Reservoir 94 Comment
  CAS-BOT-BC445379  Alisma plantago-aquatica Mary L. Bowerman 1933-9-9 2429 Contra Costa Mount Diablo. Frog Pond. Comment
  POM300645  Alisma triviale Mary L. Bowerman 1933-9-9 2429 Contra Costa Frog Pond. Mt Diablo. Comment
  CDA9505  Allenrolfea occidentalis D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .232 Contra Costa Byron Airport. Comment
  NY216689  Allenrolfea occidentalis L. S. Rose 1955-9-12 55173 Contra Costa 2 mi. E of Byron. 15.2 Comment
  UC116547  Allenrolfea occidentalis K. Brandegee 1885-1 Contra Costa near Antioch Antioch Comment
  UC70201  Allenrolfea occidentalis J. Burtt Davy May 1898 Contra Costa Byron Springs Region of Mt. Diablo, Byron Springs Comment
  CAS-BOT-BC175363  Allenrolfea occidentalis E. E. Stanford 1930-8-1 1871 Contra Costa Near Old River Comment
  RSA411794  Allenrolfea occidentalis E. E. Stanford 1930-08 1871 Contra Costa Near Old River; near sloughs. Comment
  CAS-BOT-BC469112  Allium falcifolium L. R. Abrams 1921-5-25 8038 Contra Costa Mt. Diablo, Summit Comment
  JEPS95266  Allium paniculatum var. paniculatum Doris E. Baltzo 1999-7-20 Contra Costa 2092 Ahneita Drive, Pleasant Hill Comment
  UC185478  Allium peninsulare var. peninsulare Katharine Brandegee May 1907 Contra Costa Antioch Comment
  UC692028  Allium serra Mary L. Bowerman 1933-4-26 1932 Contra Costa Perkins Canyon branch between the main ridge of North Peak and the ridge to its south Mount Diablo, Perkins Canyon 518 Comment
  UC72519  Allium serra Harley P. Chandler 1901-3-22 852 Contra Costa Martinez Comment
  UC766759  Allium serra R. F. Hoover 1936-3-19 808 Contra Costa Pittsburg Comment
  CAS-BOT-BC475528  Allium serra Alice Eastwood 1923-5-4 11730 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC475539  Allium serra Reed C. Rollins 1946-3-25 3043 Contra Costa Western slope of Mount Diablo Comment
  JEPS56395  Allium unifolium W. L. Jepson 1918-6-3 7588 Contra Costa Donner Canyon Mt. Diablo, Donner Canyon 685 Comment
  UC692021  Allium unifolium Mary L. Bowerman 1933-5-22 2165 Contra Costa flat at head of n ridge w 1970; Mount Diablo, Inner Black Hills Comment
  SEINET3151683  Allocarya trachycarpa L. S. Rose 1936-4-24 36151 Contra Costa 10 miles S of Antioch 30 Comment
  JEPS108359  Allophyllum gilioides David Gowen 2005-4-11 229 Contra Costa Mt. Diablo State Park. Below Devils Elbow in the upper part of Rhine Canyon drainage. Comment
  JEPS111823  Alnus rhombifolia D. G. Kelch 2005-5-13 05 .245 Contra Costa Martinez Martinez. South of oil refinery along Railroad tracks 28 Comment
  UC1818942  Alnus rhombifolia Barbara Ertter, Chris Thayer 1995-4-25 13987 Contra Costa Southeast side of Mt. Diablo northeast of Danville; shade of oak forest on Sycamore Creek near junction of path from Knobcone Point Rd. 396 Comment
  UC692033  Alnus rhombifolia Mary L. Bowerman 1930-8-24 421 Contra Costa Mitchell Canyon Mount Diablo Comment
  SEINET12027584  Alnus rhombifolia L. S. Rose 1938-1 38307 Contra Costa Marsh Creek, 6 mi E of Clayton 152 Comment
  SJSU7899  Alopecurus myosuroides H. G. Reeves 1972-5-8 Contra Costa W shore of San Pablo Reservoir near Bench Mark 24, 7 mi S of Dam Comment
  UC768586  Alopecurus saccatus R. F. Hoover 1937-5-14 2120 Contra Costa Byron Hot Springs Comment
  JEPS111587  Amaranthus albus A. G. Murdock 2004-5-28 303 Contra Costa Luzon Roadside 60 Comment
  UC691918  Amaranthus californicus Mary L. Bowerman 1933-9-9 2431 Contra Costa Frog Pond Mount Diablo 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
  UC2028561  Amaryllis belladonna Barbara Ertter with Mary Barkworth 2000-9-24 17528 Contra Costa North side Mount Diablo, near former well at Donner Cabin site on Donner Creek. Comment
  JEPS111728  Ambrosia chamissonis D. G. Kelch 2004-7-9 04 .312 Contra Costa Rodeo Shore 2 Comment
  OBI17106  Ambrosia chamissonis G. Thomas Robbins, John Weiler 1959-5-23 4021 Contra Costa On breakwater (partly natural, partly manmade) portion of Brooks Island 9its NW extension), San Francisco Bay, Richmond Comment
  UCD128783  Ambrosia chamissonis G. Thomas Robbins; John Weiler 1959-5-23 4021 Contra Costa Brooks Island (its north-western extension), San Francisco Bay, Richmond. 7 Comment
  JEPS78610  Ambrosia psilostachya Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3300 Contra Costa South landing Browns Island Comment
  SEINET11910975  Amelanchier alnifolia W. Knight, Knight, I. 1983-1 4741 Contra Costa Tilden Botanic Garden, Berkeley Comment
  UCD55999  Ammophila arenaria Morris Halperin; Earl J. Coke 1930-5-20 s.n. Contra Costa Sand near Antioch. Comment
  UCR12098  Amsinckia Coleta A. Lawler 1964-5-8 58 Contra Costa San Francisco Bay Region, Hampton Road, 3 .7 mi south of junction with Alhambra Valley Road; c. 10 miles northwest of Lafayette 46 Comment
  CAS-BOT-BC222228  Amsinckia Alice Eastwood; John Thomas Howell 1936-4-19 2141 Contra Costa Somersville Comment
  JEPS24884  Amsinckia grandiflora T. S. Brandegee May, 1887 Contra Costa Judsonville (in the Hills south of Antioch) Comment
  UC691630  Amsinckia intermedia Mary L. Bowerman 1935-4-22 2891 Contra Costa ridge w of Pioneer Road ((w of Stage Road)); Mount Diablo 853 Comment
  CAS-BOT-BC222461  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
  UCR47852  Amsinckia lycopsoides Alfred Sattler 1972-4-2 16 Contra Costa Mt. Diablo Creek Drainage Area, Concord; SE corner of Wilson Lane and West St. 51 Comment
  CAS-BOT-BC26818  Amsinckia oxycarpa Alice Eastwood 1921-4-18 10312 a Contra Costa Antioch Comment
  RSA0089987  Amsinckia retrorsa Lyman Benson 1935-3-16 6283 Contra Costa 3 miles S of Antioch. Mt. Range: Mt. Diablo; Watershed: Sacramento River. 152 Comment
  UC24597 Image available Amsinckia tessellata J. Burtt Davy 1895-4-7 931 Contra Costa Antioch; ; Antioch, Contra Costa Co. Comment
  UC762817  Amsinckia tessellata var. gloriosa R. F. Hoover 1935-3-10 317 Contra Costa Kirker Pass Comment
  CDA9522  Amsinckia tessellata var. tessellata D. G. Kelch, Michael Park, Abigail Moore 2007-5-2 7 .252 Contra Costa Altamont Hills; Frontage Rd. S. of Patterson Pass Rd. & I-580 Comment
  CDA15263  Anagallis arvensis G. F. Hrusa, D. Crowe 1998-5-8 14394 Contra Costa Sacramento Delta; at E end of Dow Chemical property in Pittsburg. 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
  JEPS127041  Anagallis arvensis Lowell Ahart, Josephine Guardino 2016-4-19 20784 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  UC2032821  Anagallis arvensis Doran, Andrew Scott 2012-3-20 691 Contra Costa North end of Brooks Island along ridge overlooking artificial spit, southwest of caretakers residence. 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
  UCD146714  Anagallis arvensis G. F. Hrusa; D. Crowe 1998-5-8 14394 Contra Costa Sacramento-San Joaquin River Delta. East end of Dow Chemical property at Pittsburg. 15 Comment
  UC2027713  Ancistrocarphus filagineus Barbara Ertter with Stu Garrett 1997-3-29 15526 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  UC2027832  Ancistrocarphus filagineus Barbara Ertter with John Ginochio and Mary Bowerman 2001-5-8 17631 Contra Costa northwest flank of Mount Diablo, Ginochio property north of park boundary on Long Ridge. Comment
  CAS-BOT-BC400259  Anemopsis californica Rimo Bacigalupi 1926-4-30 1347 Contra Costa About 3 miles east of Walnut Creek on Mt Diablo Road Comment
  CDA1106  Angelica californica D. G. Kelch, A. G. Murdock 2003-8-13 3 .127 Contra Costa Carquinez Strait; Vaca Canyon. Comment
  UC691885  Angelica californica Mary L. Bowerman 1932-10-16 1631 Contra Costa Mount Diablo, Donner Canyon Trail Mount Diablo; , Donner Canyon Trail Comment
  UC691887  Angelica californica Mary L. Bowerman 1935-3-16 2740 Contra Costa Mount Diablo, e fork of Arroyo del Cerro Arroyo del Cerro; Mount Diablo, Arroyo del Cerro 274 Comment
  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
  JEPS84507  Anisocarpus madioides Jack Stratford 1981-5-18 Contra Costa Huckleberry Trail Huckleberry Botanic Regional Preserve Comment
  JEPS111664  Anthemis cotula A. G. Murdock 2004-5-28 302 Contra Costa Hercules - Carbon 50 Comment
  UCD164658  Anthemis cotula Henry House 1995-5-20 1995- 23 Contra Costa Approximately 50 m from Walnut Blvd, about 1.25 km south of Marsh Creek Road. 30 Comment
  UC691616  Antirrhinum kelloggii Mary L. Bowerman 1932-4-27 1390 Contra Costa w of Riggs Canyon (s-face Oyster Ridge); Mount Diablo, Oyster Ridge 335 Comment
  UC691600  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum Mary L. Bowerman 1932-9-3 1535 Contra Costa Muir Area; Mount Diablo Comment
  JEPS45617  Aphanes occidentalis W. L. Jepson 1931-4-5 15720 Contra Costa Nortonville 396 Comment
  SEINET3161272  Aphyllon comosum Unknown sn Contra Costa Antioch Comment
  UC905142  Aquilegia formosa Sanford S. Tepfler 1949-5-2 1475 Contra Costa 2 mi s rd fork above St. Mary's College (near Moraga) Comment
  CAS-BOT-BC392089  Aquilegia formosa Mary L. Bowerman 1935-5-18 3021 Contra Costa Mount Diablo. Northwest-facing slope across the road from, and a little east of, the parking area 1066 Comment
  UC10113 Image available Arabis breweri Wm. H. Brewer 1862-5-14 1086 Contra Costa rocky summit of Mt. Diablo on eastern peak Comment
  JEPS111944  Arbutus menziesii D. G. Kelch 2004-3-12 04 .17 Contra Costa Crockett - West Valona 1 km west of Carquinez bridge. Hill above San Pablo Road 87 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
  UC692481  Arbutus menziesii Mary L. Bowerman 1931-3-21 598 Contra Costa Sycamore Canyon, west fork Sycamore Canyon; Mount Diablo, Sycamore Canyon 396 Comment
  CAS-BOT-BC24110  Arctostaphylos auriculata Rimo Bacigalupi 1924-2-17 s.n. Contra Costa Lower slopes of Mt. Diablo on old wagon road to summit from Mt. Diablo Country Club (Blue K Hills) 457 Comment
  CAS-BOT-BC24111  Arctostaphylos auriculata Walter Knight; Irja Knight 1968-2-19 2276 Contra Costa Sandmine ravine in Somersville Comment
  CAS-BOT-BC24116  Arctostaphylos auriculata Mary L. Bowerman 1935-3-24 2750 Contra Costa Lime Ridge, west face, between two major cuts of the Cowell Cement Company. Comment
  CAS-BOT-BC24117  Arctostaphylos auriculata C. F. Baker 1903-5-31 3161 Contra Costa Mt. Diablo Comment
  CDA9744  Arctostaphylos auriculata D. G. Kelch, D. A. Weinstein 1995-3-6 s.n. Contra Costa Rock City. Mt. Diablo. Comment
  JEPS124460  Arctostaphylos auriculata Daniel Slakey with CNPS Volunteers 2015-6-29 136 Contra Costa Wall Point Rd, along a roughly 1 km stretch of road just west of Wall Point. 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
  NY8229  Arctostaphylos auriculata A. Eastwood 1903-2-22 3161 Contra Costa Mt. Diablo Comment
  POM300661  Arctostaphylos auriculata Mary L. Bowerman 1933-3-25 1772 Contra Costa Emmons Canyon: South-facing slope between the two forks, top of ridge (Pine Canyon ridge) Comment
  POM300732  Arctostaphylos auriculata Mary L. Bowerman 1932-1-23 1075 Contra Costa Sycamore Canyon, east fork: East edge of chaparral near canyon bottom. Comment
  RSA0036101  Arctostaphylos auriculata Lewis S. Rose 1949-3-6 49004 Contra Costa Mt. Diablo, above Rock City. 518 Comment
  SDSU1486  Arctostaphylos auriculata D. F. Howe 1968-5-21 4519 Contra Costa Mt. Diablo. 1067 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
  UC549567  Arctostaphylos auriculata J. E. Adams 1934-3-19 678 Contra Costa Mt. Diablo Comment
  UC549569  Arctostaphylos auriculata J. E. Adams 1934-10-6 852 Contra Costa Rock City Mt. Diablo Comment
  UC75347  Arctostaphylos auriculata Alice Eastwood 1903-5-31 3161 Contra Costa Mt. Diablo Comment
  UCD50259  Arctostaphylos auriculata H. A. Stout; T. C. Wainwright 1980-3-27 Contra Costa Mallory Ranch, ca. 1 mile east of Morgan Territory Road. 609 Comment
  UCD50262  Arctostaphylos auriculata Roman Gankin 1968-11-14 1311 Contra Costa Ca. 300 yds. above road at Somersville. Comment
  CAS-BOT-BC23592  Arctostaphylos crustacea Steve Abbors 1980-3-24 s.n. Contra Costa Chemise Trail, Las Trampas Ridge, Las Trampas Regional Wilderness. Comment
  CAS-BOT-BC24858  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
  JEPS38918  Arctostaphylos glandulosa subsp. glandulosa Mary L. Bowerman 1932-3-20 1123 Contra Costa ne fork of canyon Mount Diablo, Sycamore Canyon (toward top of middle ridge) Comment
  SBBG114891  Arctostaphylos glandulosa subsp. glandulosa C. Bornstein 1999-3-20 Contra Costa Sobrante Ridge Regional Preserve 243 Comment
Read comments
Dec 27 2008
  UC1120336  Arctostaphylos glandulosa subsp. glandulosa R. C. Wilson 1935-2-26 105 Contra Costa 1 mi sw Nortonville; Mount Diablo Quadrangle Comment
  SBBG5419  Arctostaphylos glandulosa subsp. mollis J. M. Tucker 1941-9-26 409 Contra Costa summit of Moraga Ridge 500 Comment
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Sep 13 2011
  CAS-BOT-BC24656  Arctostaphylos glauca Mary L. Bowerman 1933-3-11 1748 Contra Costa Mount Diablo, Fossil Ridge, outer s. face: In gully nw. of South Gate. Comment
  JEPS38706  Arctostaphylos glauca W. L. Jepson 7592 Contra Costa Donner Canyon Mt. Diablo 243 Comment
  RSA0002606  Arctostaphylos laevigata Alice Eastwood 1922-3-17 11082 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC38924  Arctostaphylos manzanita subsp. laevigata Alice Eastwood 1922-5-17 11085 Contra Costa Mt. Diablo Comment
  JEPS38920  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1930-6-18 349 Contra Costa Rock City Canyon Mount Diablo Comment
  RSA122398  Arctostaphylos manzanita subsp. laevigata R. C. Wilson 1935-2-26 104 Contra Costa 1 mile SW of Nortonville. 396 Comment
  SBBG21345  Arctostaphylos manzanita subsp. laevigata V. Haraden 1941-7-18 10 Contra Costa near Nortonville 121 Comment
  UC549751  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1935-3-19 688 Contra Costa Mt. Diablo 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
  UC82944  Arctostaphylos manzanita subsp. laevigata Katharine Brandegee 1889-1 5 Contra Costa Antioch Comment
  UC2028052  Arctostaphylos manzanita subsp. laevigata Barbara Ertter with Ann Dennis 1998-1-25 15907 Contra Costa Donner Canyon on north side Mount Diablo, Middle Trail/Falls Trail. Comment
  CAS-BOT-BC24394  Arctostaphylos manzanita subsp. manzanita Brandegee 1889-1-1 5 Contra Costa Antioch. Comment
  POM300729  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1932-1-23 1076 Contra Costa Sycamore Canyon, east fork: East edge of chaparral near canyon bottom. Comment
  JEPS46272  Arctostaphylos tomentosa subsp. crustacea W. L. Jepson 1943-6-19 20850 Contra Costa Moraga Ridge Comment
  JEPS48825  Arctostaphylos tomentosa subsp. crustacea H. M. Wheeler 1944-1-16 27508 Contra Costa Moraga Ridge Oakland Hills Comment
  OBI16786  Argyranthemum foeniculaceum G. Thomas Robbins, John Weiler 1959-5-23 4022 Contra Costa Brooks Island (its NW extension), San Francisco Bay, Richmond Comment
  JEPS111634  Aristolochia californica D. G. Kelch 2003-2-7 03 .34 Contra Costa McEwen Road 95 Comment
  JEPS111635  Aristolochia californica D. G. Kelch 2004-3-5 04 .3 Contra Costa Martinez - Rankin Open Space Rankin Park, Martinez 68 Comment
  CAS-BOT-BC400401  Aristolochia californica Wm. M. Canby 1894-3-1 s.n. Contra Costa Walnut Creek Comment
  JEPS32457  Aristolochia californica Mrs. L. J. Barker 1932-3-27 Contra Costa Bear Valley rd. just over the divide on Pinole side Orinda Comment
  POM87995  Aristolochia californica H. M. Hall 1900-3-23 s.n. Contra Costa Lauterwasser Creek Comment
  UCSB24029  Aristolochia californica Olson, Glen 1968-3-21 Contra Costa Fifty yards on the north side of School Street, 0.4 mile east of its junction with Moraga Road in Lafayette 106 Comment
  JEPS95239  Arnica discoidea Stephen W. Edwards 1991-1 Contra Costa Huckleberry Trail; Huckleberry Botanic Regional Preserves Comment
  RSA755498  Artemisia biennis Barbara Ertter, Jim Dunne, David Gowen, Lech Naumovich 2009-12-3 19800 Contra Costa Mudflats at upper (south) end of San Pablo Dam Reservoir northwest or Orinda 90 Comment
  JEPS100118  Artemisia californica A. Langston 2003-9-16 AL 90 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1119320  Artemisia californica H. A. Jensen 1934-8-19 382 Contra Costa 1 mi nw North Peak; Mt. Diablo Quadrangle Comment
  CAS-BOT-BC90298  Artemisia douglasiana Walter Knight; Joanne Dean 1978-8-14 3132 Contra Costa Browns Island Comment
  JEPS75552  Artemisia douglasiana P. F. Yorks 1975-7-12 472 A Contra Costa north of Briones Reservoir (on Hampton Road 1.7 km s of Bear Creek Road); Hampton Road Natural Reserve Comment
  UC691721  Artemisia douglasiana Mary L. Bowerman 1930-8-24 414 Contra Costa Mitchell Canyon Mount Diablo, Mitchell Canyon Comment
  POM318719  Artemisia douglasiana Patricia Wilder 1961-8-27 1065 Contra Costa Walnut Creek, near Calif. Hwy 24. 24 Stanley Court. 42 Comment
  CAS-BOT-BC400500  Asarum caudatum John Thomas Howell 1925-9-12 1439 Contra Costa San Leandro Canon [Canyon], Oakland Hills Comment
  UC35247  Asclepias californica Dr. W. S. George 1901-4-13 Contra Costa Antioch Comment
  JEPS15235  Asclepias cordifolia Rimo Bacigalupi with G. Thomas Robbins 1956-5-11 5642 Contra Costa 1/4 mi above and nw Glen Frazier Station on the Santa Fe Railway; Franklin Canyon 106 Comment
  SEINET207365  Asclepias cordifolia Rimo Bacigalupi, G. Thomas Robbins 1956-5-11 5642 Contra Costa Franklin Canyon, 1/4 mile above (and northwest of) Glen Frazer Station on the Santa Fe Railway. 107 Comment
  RSA121907  Asclepias fascicularis H. S. Yates 1934-9-2 4067 Contra Costa One mile southwest of Mt. Diablo 762 Comment
  JEPS87983  Asparagus asparagoides Barbara Ertter 1991-5-12 9817 Contra Costa sw corner El Cerrito (along old R.R. right-of-way between bay & salicornia marsh, Point Isabel Regional Shoreline, on San Francisco Bay); San Francisco Bay Comment
  UC1618203  Asparagus asparagoides Barbara Ertter 1991-1-21 9715 Contra Costa ne corner Point Isabel Regional Shoreline (El Cerrito, sw corner of Contra Costa County); El Cerrito Comment
  CAS-BOT-BC180528  Astragalus asymmetricus M. K. Curran 1886-5-1 51 Contra Costa Antioch Comment
  UC83459  Astragalus asymmetricus Katharine Brandegee June 1891 Contra Costa Antioch Comment
  CAS-BOT-BC177884  Astragalus didymocarpus var. didymocarpus Robert Hoover 1935-3-10 308 Contra Costa Kirker Pass Comment
  CAS-BOT-BC177886  Astragalus didymocarpus var. didymocarpus 1884-5-1 s.n. Contra Costa antioch Comment
  CAS-BOT-BC178476  Astragalus gambelianus Alice Eastwood 1923-5-4 11722 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC178474  Astragalus gambelianus Mary L. Bowerman 1931-4-4 643 Contra Costa North of West road, sandy dry bank at low altitude, Mount Diablo. Comment
  UC1795758  Astragalus gambelianus Barbara Ertter, Mary Bowerman et al. 1995-5-7 14061 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, small serpentine patch at road junction Comment
  CAS-BOT-BC66048  Athyrium filix-femina var. cyclosorum M. Beene 1981-4-11 011 Contra Costa Lafayette Res. eastern side of park ca. 100 m W. from main path Comment
  UC673344  Athysanus pusillus H. L. Mason 1929-3-29 5117 Contra Costa Mount Diablo 1066 Comment
  SEINET12004480  Athysanus pusillus L. S. Rose 1932-1 32107 Contra Costa Nortonville Comment
  SEINET6069536  Athysanus pusillus Unknown 1931-3-10 5754 Contra Costa Mt. Diablo. East side. 7 miles from Clayton on Livermore Road. Comment
  CAS-BOT-BC16333  Athysanus unilateralis Alice Eastwood 1914-3-14 3766 Contra Costa Byron Springs. Comment
  RSA0036964  Atriplex coronata D. G. Kelch, Mike Perlmutter 2011-9-23 11 .760 Contra Costa Entry to Discovery Bay. 2 Comment
  UC219362  Atriplex coronata H. M. Hall 1922-5-6 11802 Contra Costa 8 mi w Byron (e of Mt. Diablo); , w of Byron Comment
  POM181083  Atriplex coronata J. T. Howell 1930-9-28 5503 Contra Costa 5.4 miles from Byron on Marsh Creek Road. Comment
  UCD97365  Atriplex coronata var. coronata Carol W. Witham 1994-8-6 587 Contra Costa along Kellogg Creek Road under transmission towers. 3 Comment
  UC2042867  Atriplex prostrata Barbara Ertter, B. Olson, D. Lake, L. Hosley and A. Youngson 1991-10-20 10871 Contra Costa Dow Wetland Preserve, just W of Antioch. Comment
  SEINET4136060  Atriplex prostrata Barbara Ertter, Elizabeth Neese 1988-10-15 7979 Contra Costa Salicornia marsh W of I-580 in El Cerrito, W side along Rydin Road N of Central Avenue.; 0 Comment
  UC2027887  Atriplex prostrata Barbara Ertter with Chris Thayer 1996-10-25 15361 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park. Comment
  CDA2931  Atriplex semibaccata D. G. Kelch 2006-9-25 6 .477 Contra Costa Carquinez Strait; Marsh 1km. W of Pacheco Slough. Comment
  SEINET5345887  Atriplex semibaccata H. Yates 1934-9-2 4064 Contra Costa 1 mile northeast of Danville Comment
  SEINET11263175  Atriplex triangularis Barbara Ertter, Chris Thayer 1996-10-25 15361 Contra Costa NW flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park, intermittent surface water left in shaded stream in valley oak woodland and grassland.; 0 91 Comment
  SD120703  Avena fatua G. D. Barbe 1983-5-22 4081 Contra Costa on hillside along fire road north of Juniper Campground, Mount Diablo State Park 878 Comment
  UC1948935  Avena fatua William J. Ferlatte, L. Maynard Moe 1970-4-27 1225 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC606745  Avena fatua Edward Lee 1936-4-19 1972 Contra Costa Red Rock San Francisco Bay (foot of bluff on e shore of island) Comment
  UC697125  Avena fatua Mary L. Bowerman 1931-5-7 809 Contra Costa North Peak Mount Diablo Comment
  UCD38559  Avena fatua var. glabrata Beecher Crampton 1956-5-14 3418 Contra Costa 0.5 mile west of Martinez. Comment
  UCD56084  Avena occidentalis G. Douglas Barbe 1983-5-22 4081 Contra Costa Mount Diablo State Park. 877 Comment
Read comments
Nov 19 2009
  CAS-BOT-BC68349  Azolla Walter Knight 1978-10-4 3313 Contra Costa Browns Island, Point Emmet Comment
  UC2062639  Baccharis douglasii Barbara Ertter with Jim Dunne, David Gowen, Lech Naumovich 2009-12-3 19796 Contra Costa Mudflats at upper (south) end of San Pablo Dam Reservoir northwest of Orinda. Comment
  JEPS111682  Baccharis glutinosa D. G. Kelch 2003-8-13 03 .138 Contra Costa Pinole Creek 68 Comment
  SEINET11261322  Baccharis glutinosa Kaye H. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4963 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough. SE portion of Bethel Slough.; 0 610 Comment
  JEPS75551  Baccharis pilularis P. F. Yorks 1921-9-11 369 Contra Costa 1.6 km s, on Hampton Road in Hampton Road Natural Reserve Bear Creek Road ((n of Briones Reservoir)); Hampton Road Natural Reserve 180 Comment
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Dec 21 2009
  UC691860  Baccharis salicifolia subsp. salicifolia Mary L. Bowerman 1932-3-23 1134 Contra Costa Mount Diablo, Donner Canyon 152 Comment
  JEPS12786  Balsamorhiza deltoidea Rimo Bacigalupi with G. T. Robbins 1955-5-4 4978 Contra Costa along road to Irish Canyon (s of and above Nortonville) 426 Comment
  OBI16940  Balsamorhiza deltoidea Rimo Bacigalupi 1955-5-4 4978 Contra Costa S of and above Nortonville, along rd to Irish Cyn 427 Comment
  CAS-BOT-BC106561  Balsamorhiza deltoidea Rimo Bacigalupi; G. T. Robbins 1955-5-4 4978 Contra Costa On west facing slope south of and above Nortonville, along road to Irish Canyon 426 Comment
  UCD35137  Bellardia trixago Beecher Crampton 1949-6-5 468 Contra Costa near Muir. Comment
  UCSC000661  Bellardia trixago Mrs. G. Garlichs 1938-5-2 s.n. Contra Costa Wine Haven, Point Richmond Comment
  SD30222  Bellardia trixago P. O. Schallert 1943-4-27 Contra Costa 1 mile east of Martinez, in meadow Comment
  UC691754  Bellardia trixago M. L. Bowerman 1938-5-25 3632 Contra Costa 1.6 miles from N gate where stream crosses road N Road 152 Comment
  CAS-BOT-BC75786  Berberis pinnata H. E. McMinn 1923-3-17 897 Contra Costa Sycamore Canyon - 2 miles from Black Hawk Ranch - left canyon. Comment
  JEPS96225  Bidens laevis Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10873 Contra Costa just w Antioch marina (e end of marsh across from marina); Dow Wetlands Preserve Comment
  SEINET11861660  Bidens laevis L. S. Rose 1938-10-28 38311 Contra Costa Byron Comment
  NY31018  Blennosperma californicum L. S. Rose 1941-3-13 41035 Contra Costa 3 miles south of Byron 7.6 Comment
  SEINET10758592  Blennosperma californicum Lewis S. Rose 1932-3-15 Rose 3279 Contra Costa Byron. Comment
  NY31032  Blennosperma nanum D. G. Nelson 1937-3-30 459 Contra Costa Marsh Creek Highway, about halfway between Clayton and Byron Comment
  POM203483  Blennosperma nanum L. S. Rose 1933-3-10 33008 Contra Costa Marsh Creek. Comment
  POM247237  Blennosperma nanum Annetta Carter 1937-3-28 1225 Contra Costa Marsh Creek Road, 15 miles east of Concord. 152 Comment
  CAS-BOT-BC100698  Blennosperma nanum var. nanum Alice Eastwood 1914-3-14 3768 Contra Costa Byron Springs Comment
  JEPS17891  Blennosperma nanum var. nanum Rimo Bacigalupi with G. T. Robbins 1956-3-26 5526 Contra Costa Deer Valley, along Deer Valley Road 76 Comment
  JEPS18383  Blennosperma nanum var. nanum Rimo Bacigalupi with F. Chisaki 1957-3-27 5761 Contra Costa 1/2 mi w, 3 1/2 mi se of Antioch, jct of Lone Tree Way and Hillcrest Ave Lone Tree School 39 Comment
  UC762511  Blennosperma nanum var. nanum R. F. Hoover 1938-2-21 2750 Contra Costa Byron Hot Springs Comment
  SEINET1910262  Blennosperma nanum var. nanum Barbara Ertter 1992-1 10908 Contra Costa Byron Springs Road, 4-5 miles south of Junction with J4, near Armstrong Road Comment
  UC1950447  Blennosperma nanum var. nanum Barbara Ertter 1992-3-8 10908 Contra Costa Byron Springs Road 4-5 miles south of junction with J4, near Armstrong Road Comment
  UC761866  Blepharizonia laxa R. F. Hoover 1937-9-2 2710 Contra Costa 1 mi s of Pittsburg Comment
  UCD129617  Blepharizonia laxa Robert E. Preston 1996-9-27 1012 Contra Costa NW-facing hillside, 0.5 mile south of Contra Loma Reservoir. 106 Comment
  CAS-BOT-BC100340  Blepharizonia plumosa Miss H. A. Walker 1916-8-28 3922 Contra Costa Los Medanos, near Antioch Comment
  SD9039  Blepharizonia plumosa Katherine Curran Aug 1883 Contra Costa Antioch Comment
Read comments
Jan 23 2015
  UC762569  Blepharizonia plumosa R. F. Hoover 1937-8-31 2704 Contra Costa Pittsburg Comment
  UC10106 Image available Boechera breweri subsp. breweri W. H. Brewer 1862-5-14 1086 Contra Costa Summit of Mount Diablo Mount Diablo Comment
  UC691073  Boechera breweri subsp. breweri Mary L. Bowerman 1932-3-27 1142 Contra Costa Mitchell Rock Mount Diablo Comment
  JEPS111899  Bolboschoenus maritimus D. G. Kelch 2004-9-2 04 .335 Contra Costa Pacheco Marsh Marsh east of Martinez and I-680 and east of lone tree Marsh. 5 Comment
  CAS-BOT-BC31333  Bolboschoenus maritimus Walter Knight; Irja Knight 1979-9-10 3431 Contra Costa In ditch near corner of Moraga Rd and st Marys Road. Moraga. Comment
  CDA42003  Boschniakia strobilacea B. Hosman 1974-6-2 s.n. Contra Costa in the native area 0 Comment
  CAS-BOT-BC95309  Bowlesia incana John Thomas Howell 1933-3-29 10901 Contra Costa Nortonville hills Comment
  RSA721286  Brachypodium distachyon Barbara Ertter, Mary L. Bowerman 1995-5-7 14026 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, along road through annual grassland with scattered blue oak south of Marsh Creek. Road. summit. 305 Comment
  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
  UC691083  Brassica nigra Mary L. Bowerman 1938-5-25 3633 Contra Costa Mount Diablo. North Road 2 miles from North Gate. 182 Comment
  CAS-BOT-BC36726  Brassica rapa Ira L. Wiggins 1930-4-18 4609 Contra Costa Jersey Island. Comment
  JEPS78174  Brassica rapa Gary W. Zamzow 1973-1-26 125 Contra Costa 300 m. s. of Central Ave. overpass & 100 m. w. of Hoffman Blvd. on landfill at edge of bay Richmond Comment
  CAS-BOT-BC106325  Brickellia californica Mary L. Bowerman 1931-9-27 1051 Contra Costa Mount Diablo - Road to Quicksilver Mine Comment
  JEPS108535  Briza maxima Lisa Schultheis 1995-4-29 76 -95 Contra Costa along Knobcone Point trail, just after Curry Point trail splits into Knobcone and BlackHawk trails Comment
  CDA31567  Briza minor D. G. Kelch, Andrew G. Murdock 2004-4-24 4 .104 Contra Costa Carquinez Strait; Canada del Cierbo, along Cumming Skyway at Highway 80 ~ .75 km. 0 Comment
  UC1948971  Bromus carinatus William J. Ferlatte, L. Maynard Moe 1970-4-27 1237 Contra Costa San Francisco Bay: Red Rock 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
  UCD58127  Bromus carinatus A. A. Beetle 1942-3-22 2931 Contra Costa Brooks Island in San Francisco Bay. Near Richmond. Comment
  UC606747  Bromus carinatus var. carinatus Edward Lee 1936-4-19 1975 Contra Costa San Francisco Bay, Red Rock Red Rock; San Francisco Bay, Red Rock Comment
  UC692285  Bromus carinatus var. carinatus Mary L. Bowerman 1935-5-16 3010 Contra Costa behind Gabriel-Hinks (Mount Diablo, e side of North Peak); Mount Diablo, North Peak 289 Comment
  UC697129  Bromus carinatus var. carinatus Mary L. Bowerman 1935-5-1 2947 Contra Costa West Road 6.7 mi from entrance, Mount Diablo West Road; Mount Diablo, West Road 640 Comment
  CAS-BOT-BC149543  Bromus carinatus var. carinatus David C. Rentz 1968-4-29 5 Contra Costa Between homes near Oak View Avenue on Ocean View Avenue. Kensington. Comment
  UC2028410  Bromus carinatus var. carinatus Barbara Ertter 1998-4-4 15969 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, Fossil Hill, middlle of NE-facing slope Comment
  CDA28880  Bromus diandrus D. G. Kelch 2006-5-7 6 .162 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  CHSC21647  Bromus diandrus Willis Ball 1975-3-2 477 Contra Costa Contra Loma Regional Park. In area #4. On e side of lake ca. 175 yds s of dam. 30 Comment
  JEPS100025  Bromus diandrus S. O'Neil 2003-5-7 SEO 29 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC692289  Bromus diandrus Mary L. Bowerman 1935-5-25 3068 Contra Costa Mount Diablo, s of summit Mount Diablo 1066 Comment
  UC692332  Bromus diandrus Mary L. Bowerman 1935-4-26 2921 Contra Costa Mount Diablo, Meridian Peak summit Meridian Peak; Mount Diablo, Meridian Peak 1158 Comment
  SEINET5541898  Bromus diandrus J. Hamai 1985-1 s.n. Contra Costa Russell Reserve. Comment
  JEPS100024  Bromus hordeaceus G. Smick 2003-3-27 GAS 95 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  POM300689  Bromus hordeaceus Mary L. Bowerman 1933-4-15 1870 Contra Costa Canyon south of Arroyo del Cerro: Rocky knoll 250 feet below spring. Comment
  UCD36913  Bromus hordeaceus Beecher Crampton 1956-5-14 3379 Contra Costa 5 miles south of city of Antioch, on Empire Mine Drive, at head of Horse Valley. Comment
  UCD58623  Bromus hordeaceus Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  UC2028545  Bromus hordeaceus Barbara Ertter 1998-4-4 15949 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, grasslands along creek south of Indian Valley School. Comment
  UC60198  Bromus laevipes Jos. Burtt Davy 1900-6-7 6652 Contra Costa Briones Region Comment
  UCD58906  Bromus laevipes P. B. Kennedy Date Unknown s.n. Contra Costa Pinehurst. Comment
  UCD58988  Bromus madritensis Walter Knight 1967-7-9 s.n. Contra Costa Botanical Garden, Tilden Park. Comment
  CAS-BOT-BC162354  Bromus madritensis Mary L. Bowerman 1932-4-27 1371 Contra Costa Mount Diablo. Oyster RIdge, south face, canyon west of Riggs Canyon. 289 Comment
  CAS-BOT-BC162356  Bromus madritensis Mary L. Bowerman 1935-5-22 3037 Contra Costa Mount Diablo. Eagle Point Ridge, canyon at north end which heads into saddle west of Twin Peaks. 304 Comment
  UC691213  Bromus madritensis subsp. madritensis Mary L. Bowerman 1933-4-26 1912 Contra Costa ese of North Peak (Mount Diablo); Mount Diablo 609 Comment
  UC692348  Bromus madritensis subsp. rubens Mary L. Bowerman 1933-5-2 1944 Contra Costa below Pioneer Camp (Mount Diablo); Mount Diablo 762 Comment
  UC677567  Bromus racemosus P. F. Knowles B 72 Contra Costa 1 mi w of Rodeo Comment
  SEINET10523815  Bromus rigidus Alan A. Beetle 1942-3-22 Beetle 2932 Contra Costa Brooks Island, San Francisco Bay, near Richmond. 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
  JEPS84819  Calamagrostis rubescens J. Stratford 1981-6-8 Contra Costa Huckleberry Trail Huckleberry Botanic Regional Preserve Comment
Read comments
Aug 20 2008
  SEINET186069 Image available Calamagrostis rubescens Virginia E. Long 1933-6-14 222 a Contra Costa Mt. Diablo. Inner Black Hill. Northern slope. 564 Comment
  CAS-BOT-BC233994  Calandrinia breweri R. F. Hoover 1939-4-13 4019 Contra Costa Head of Markley Canyon (west branch) Comment
  JEPS99499  Calandrinia breweri Mary Bowerman 1979-5-2 Contra Costa Comment
  UC765774  Calandrinia breweri R. F. Hoover 1939-4-13 4019 Contra Costa head west branch Markley Canyon Comment
  CAS-BOT-BC438370  Calandrinia ciliata Alice Eastwood 1914-2-24 3741 Contra Costa Antioch Comment
  CDA23935  Calandrinia ciliata D. G. Kelch 2007-4-1 7 .11 Contra Costa Carquinez Strait; Pt. Pinole. Comment
  CAS-BOT-BC438364  Calandrinia ciliata Brandegee No date on label s.n. Contra Costa Antioch Comment
  UCD100165  Calandrinia ciliata Beecher Crampton 1950-4-16 512 Contra Costa Along R.R. embankment, Giant. Comment
  UCD84952  California macrophylla Chuck Hughes 2010-3-31 224 Contra Costa About 0.3 mile north of Vasco Road. 357 Comment
  UC1563731  Callitriche longipedunculata Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8144 Contra Costa West and adjacent Clifton Court Forebay, ca. 15 air miles SW od Stockton. SE Contra Costa County. Comment
  JEPS102916  Calochortus argillosus Barbara Ertter with Dan Norris 1998-6-18 16209 Contra Costa South Gate Road ca 1 mi from entrance Mount Diablo 304 Comment
  UC2028297  Calochortus luteus Barbara Ertter with Dan Norris 1998-6-18 16214 Contra Costa Rock City area on south side of Mount Diablo, trail to Artist Point. Comment
  HSC93902  Calochortus pulchellus C. Newberry 1994-4-30 7250 Contra Costa Mt. Diablo State Park, trail from Mitchell Canyon Parking to Donner Creek 900 Comment
  JEPS125942  Calochortus pulchellus D. W. Taylor 2001-4-26 17627 Contra Costa Black Diamond Mines Regional Preserve; 1 mile SSW of Nortonville (site); growing on access road to PG&E electrical transmission lines. Comment
  POM170033  Calochortus pulchellus H. M. Hall 1910-5-30 10132 Contra Costa Mt. Diablo, north slope near Pine Canyon 366 Comment
  SBBG52901  Calochortus pulchellus J. D. Hobson 1962-3-9 36 Contra Costa Mt Diablo Comment
  CAS-BOT-BC132499  Calochortus pulchellus W. W. Carruth 1900-4-1 s.n. Contra Costa Lafayette Comment
  CAS-BOT-BC132503  Calochortus pulchellus H. M. Hall 1916-5-30 10132 Contra Costa Mt. Diablo, north slopes, near Pine Canyon 365 Comment
  CAS-BOT-BC132505  Calochortus pulchellus Paul F. Covel 1936-5-17 123 Contra Costa Mt. Diablo, (North Pk trail) Comment
  CAS-BOT-BC483487  Calochortus splendens Mary L. Bowerman 1931-5-23 898 Contra Costa Oyster Pont Ridge Comment
  CDA9192  Calochortus superbus Christopher Thayer 1996-6-7 s.n. Contra Costa On SW facing grassy slopes on Oursan Trail not far above Hampton Road. EBMUD property. 0 Comment
  UC1779714  Calochortus umbellatus Rudolf Schmid 1997-4-4 1997 -1 Contra Costa Hillside Natural Area, El Cerrito; SW of Kent Dr. - Regency Ct. entrance, N side of juncttion of the two main fire roads. 144 Comment
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Apr 2 2012
  UC2028988  Calochortus venustus Barbara Ertter 2000-5-14 17007 Contra Costa Donner Canyon on north side of Mount Diablo, SW end of Falls Trail between Middle Trail and Donner Creek crossing. Comment
  UC2029105  Calycadenia truncata Barbara Ertter 2000-7-29 17441 Contra Costa Donner Basin on north side of Mount Diablo, ca halfway up Middle Trail. Comment
  UC691543  Calycadenia truncata Mary L. Bowerman 1933-8-26 2412 Contra Costa w of Lower Pine Spring; Mount Diablo Comment
  CAS-BOT-BC275399  Calycadenia truncata var. truncata L. R. Abrams 1910-10-8 4338 Contra Costa Mount Diablo 701 Comment
  CAS-BOT-BC418628  Calystegia R. K. Brummitt; B. Ertter 2012-6-17 22061 Contra Costa Berkeley Hills, Tilden Park, Seaview Trail north of Vollmer Peak Comment
  UC635024  Calystegia purpurata A. E. Borell 1928-4-13 128 Contra Costa Point Richmond Comment
  UC691851  Calystegia purpurata Mary L. Bowerman 1931-4-4 658 Contra Costa North Road 4.5 mi from North Gate Mount Diablo (bank above road); Mount Diablo 396 Comment
  JEPS111817  Calystegia sepium subsp. binghamiae D. G. Kelch 2004-7-9 04 .289 Contra Costa Crockett Edwards Creek. Immediately below high school. 4 Comment
  UC1191638  Calystegia sepium subsp. binghamiae Malcolm A. Nobs, S. Galen Smith 1949-7-8 941 Contra Costa 4 mi n Kingston (Otto's Black Bass Resort); n of Kingston, Otto's Black Bass Resort Comment
  UC1594199  Calystegia sepium subsp. binghamiae Jerry Powell 1991-8-15 1614 Contra Costa Antioch National Wildlife Refuge Comment
  CDA41299  Calystegia sepium subsp. limnophila G. F. Hrusa, D. Crowe, R. York 1998-7-17 14728 Contra Costa Sacramento Delta; Betw. Dow Ecological Reserve and San Joaquin R. Sheet 2 of 2. Comment
  CAS-BOT-BC436386  Calystegia subacaulis John Thomas Howell 1933-5-14 11270 Contra Costa Hills east of St. Mary's College Comment
  UC1794958  Calystegia subacaulis R. K. Brummitt and B. Ertter 1998-5-13 19841 Contra Costa S of Antioch, Black Diamond Mine Regional Park. Comment
  HSC104419  Calystegia subacaulis David Gowen 2005-5-29 402 Contra Costa West of Morgan Territory Rd. and the main entrance to Morgan Territory Regional Preserve; north of summit of hill 2581 (Tassajara Pk.?) Comment
  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
  UC1084506  Camissonia campestris subsp. campestris G. Thomas Robbins 1940-5-19 328 Contra Costa e Antioch (slope above river); San Joaquin River Comment
  RSA454744  Camissonia campestris subsp. campestris H. de Forest 1930-4-6 s.n. Contra Costa [No location information on label.] Comment
  UC84570  Camissonia contorta Katharine Brandegee May 1883 Contra Costa Antioch Comment
  UC1301105  Camissonia contorta Helen K. Sharsmith 1963-4-7 5293 Contra Costa abandoned orchard near Oakley (s of Antioch); San Francisco Bay Region 15 Comment
  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
  JEPS101167  Camissoniopsis hirtella Dean W. Taylor 1971-3-28 973 Contra Costa Mount Diablo, Mount Diablo State Park, 1 mile south of the South Entrance 457 Comment
  JEPS44361  Camissoniopsis intermedia W. L. Jepson 1921-11-19 9520 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC266440  Campanula exigua Mrs. Ernest Meiere 1916-6-1 s.n. Contra Costa Mount Diablo Comment
  JEPS99590  Campanula exigua Mary Bowerman 1975-6-1 Contra Costa Mount Diablo. Upper Falls Trail a few feet below real 1st creek (not waterfall) coming from horsemen's. Comment
  JEPS108385  Campanula griffinii David Gowen 2005-4-25 263 Contra Costa Mt. Diablo State Park. South east end of Prospector's Gap Rd., ca 0.3 mile NW of its junction with Ray Morgan Rd. Small area of serpentine outside of the park boundary. Comment
  UC1789104  Campsis radicans Barbara Ertter 1998-5-10 16370 Contra Costa southeast edge of Antioch Marina. Comment
  JEPS111861  Capsella bursa-pastoris D. G. Kelch 2004-3-12 04 .27 Contra Costa Pinole Valley Hillside and canyon above Wright Road. Off of Pinole Valley Road 220 Comment
  RSA29680  Capsella bursa-pastoris Joseph A. Ewan 1936-5-3 9495 Contra Costa Wildcat Creek near Orinda road bridge. Comment
  CAS-BOT-BC37390  Cardamine californica Alice Eastwood 1922-3-17 11087 Contra Costa Mount Diablo. Comment
  CAS-BOT-BC37391  Cardamine californica Alice Eastwood 1923-5-4 s.n. Contra Costa Mount Diablo. Comment
  CAS-BOT-BC37396  Cardamine californica Annetta Carter; Helen Sharsmith 1940-3-17 1498 Contra Costa Near Stege railroad station two miles southeast of Richmond. 7 Comment
  UC1126899  Cardamine californica R. C. Wilson 1935-3-19 142 Contra Costa 1 mi se Wall Pt.; Mt. Diablo Quad. Comment
  POM203648  Cardamine californica var. integrifolia J. T. Howell 1933-5-14 11255 Contra Costa Hills east of St. Mary s college Comment
  RSA21594  Cardamine californica var. integrifolia C. B. Wolf 1937-3-28 8319 Contra Costa 2 miles south of Pinole on San Pablo road 30 Comment
  RSA0033843  Cardamine oligosperma Barbara Ertter 2000-3-30 16912 Contra Costa North side of Mount Diablo, Deer Flat at head of Mitchell Canyon. Comment
  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
  RSA8534  Carduus pycnocephalus J. T. Howell 1933-5-14 11246 Contra Costa Hills east of St. Mary's college Comment
  SEINET4023248 Image available Carduus pycnocephalus B. C. Templeton 1962-1 sn Contra Costa Mount Diablo. Comment
  SEINET8734726 Image available Carduus pycnocephalus Laura Zeller 1965-1 83 Contra Costa just E of the University of California Botanical Garden 91 Comment
  JEPS99960  Carduus pycnocephalus subsp. pycnocephalus G. Smick 2003-4-10 GAS 137 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC582525  Carduus pycnocephalus subsp. pycnocephalus Joseph P. Tracy 1934-4-30 13188 Contra Costa roadside between Moraga and Lafayette Moraga 152 Comment
  JEPS79443  Carduus tenuiflorus Edward Lee with Annetta Carter 1935-6-13 1431 Contra Costa s Richmond Panhandle Boulevard; Richmond Comment
  CAS-BOT-BC281803  Carduus tenuiflorus David Keck 1941-6-5 5312 Contra Costa Berkeley Hills, Fish Creek Rd, 0.25 mile W of E portal of Broadway Tunnel 335 Comment
  CAS-BOT-BC281805  Carduus tenuiflorus John Thomas Howell 1933-5-21 11323 Contra Costa San Pablo Comment
  POM226232  Carduus tenuiflorus J. T. Howell 1933-5-21 11323 Contra Costa San Pablo Comment
  CAS-BOT-BC17999  Carex aquatilis var. dives Walter Knight; Joanne Dean 1978-8-14 3142 Contra Costa Browns Island. Comment
  CAS-BOT-BC19206  Carex barbarae Walter Knight; Irja Knight 1977-6-18 s.n. Contra Costa About 50 ft. from shore of San Joaquin River. Antioch sand dunes, Little Corral site. Comment
  JEPS124459  Carex barbarae Daniel Slakey with CNPS Volunteers 2015-6-29 135 Contra Costa Mt. Diablo State Park. Slope above Emmons Canyon, along access trail from Macedo Ranch Staging Area. Comment
  UC691965  Carex barbarae Mary L. Bowerman 1983-9-9 2433 Contra Costa Frog Pond, W side Mount Diablo Comment
  UC70619  Carex barbarae Jos. Burtt Davy 1899-4-19 7846 Contra Costa Glorietta inner coast range mountains Comment
  CAS-BOT-BC19207  Carex barbarae Walter Knight; B. Atwater; R. Bensler; J. Dean; B. Mortensen 1979-4-13 3365 Contra Costa Alder Point. Browns Island. Comment
  CAS-BOT-BC20852  Carex globosa John Thomas Howell 1953-3-15 28923 Contra Costa Rock City, Mt. Diablo. Comment
  UC932  Carex globosa Brewer 1862-5-23 1150 Contra Costa Mt. Diablo 609 Comment
  CAS-BOT-BC119017  Carex pellita Walter Knight; B. Mortensen; J. Dean; R. Bensler; B. Atwater 1979-6-13 3364 Contra Costa Damp area in center of Browns Island. Comment
  UC1618279  Carex pellita Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, and Amy Hiss 1991-8-18 10705 Contra Costa opposite Pittsburg Marina (near w end of island, n of Pittsburg, near confluence of Sacramento and San Joaquin rivers); Browns Island Comment
  CAS-BOT-BC119015  Carex pellita Miss Mary Leolin Bowerman 1935-5-16 3000 Contra Costa Russelmann Park road at Gregory Ranch junction. 289 Comment
  UC1949084  Carex pendula Barbara Ertter with Jim Dunne, David Gowen, Lech Naumovich 2009-12-3 19797 Contra Costa upper (south) end of San Pablo Dam Reservoir northwest of Orinda Comment
  UC2028414  Carex praegracilis Barbara Ertter with Dan Norris 2000-12-3 17553 Contra Costa South side Mount Diablo, Devils Slide Trail above Sulfur Springs on NW fork of Sycamore Creek Comment
  POM222732  Carex serratodens L. S. Rose 1935-5-16 35163 Contra Costa Mt. Diablo. 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
  SEINET7575209 Image available Carex serratodens Lewis S. Rose 1935-5-16 35163 Contra Costa Mt. Diablo. Comment
  JEPS25119  Carex subbracteata G. Thomas Robbins 1959-4-18 3985 Contra Costa 1/2 mi e Pt. San Pablo (overlooking San Pablo Bay); San Pablo Bay, Richmond 7 Comment
  RSA0029049  Carex subbracteata Barbara Ertter 1999-3-21 16491 Contra Costa NW corner of Miller Knox Regional Shoreline, Potrero Hills SW of Richmond. Abandoned trail on north side of crest. Comment
  UC1618162  Carex subbracteata Barbara Ertter, Chris Thayer 1993-5-7 11694 Contra Costa Hopkins Spring 1/2 mile SE of Inspiration Point on Wild Canyon Road, East Bay Municipal Utilities District land east of Tilden Park 304 Comment
  CAS-BOT-BC115559  Carex tumulicola Walter Knight; Irja Knight 1967-7-9 2067 Contra Costa Regional Parks Botanic Cargen. Comment
  UC2029203  Carex tumulicola Barbara Ertter 1999-7-17 16770 Contra Costa Tilden Regional Park, trail to Jewel Lake paralleling Wildcat Creek Comment
  UC2028183  Castilleja affinis subsp. affinis Barbara Ertter 1998-5-3 16068 Contra Costa SE end of Wall Point Road on southwest flank of Mount Diablo. Comment
  UC1779741  Castilleja ambigua subsp. ambigua D. Kelch 1999-4-15 Contra Costa George Wittell Marsh, Pt. Pinole Comment
  JEPS100151  Castilleja attenuata G. Smick 2003-4-8 GAS 125 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS9949  Castilleja attenuata W. L. Jepson 1923-4-22 9873 Contra Costa Mt. Diablo Comment
  UC41755  Castilleja attenuata Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  UC691581  Castilleja attenuata Mary L. Bowerman 1933-5-4 1990 Contra Costa Rock City Ridge (= Fossil Ridge); Mount Diablo Comment
  UC1819018  Castilleja densiflora subsp. densiflora Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14676 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
  JEPS65199  Castilleja exserta subsp. exserta L. R. Heckard 1971-4-15 2468 Contra Costa n of Mitchell Creek Park (n base of Mt. Diablo); Mt. Diablo 152 Comment
  UC2028155  Castilleja exserta subsp. exserta Barbara Ertter 1998-4-4 15956 Contra Costa Shell Ridge Open Space northwest of Mount Diablo. Comment
  UC1328145  Castilleja exserta subsp. latifolia Olive Dyer 1938-4-6 417 Contra Costa slope above Big Springs Canyon; Wildcat Canyon Comment
  JEPS11158  Castilleja rubicundula subsp. lithospermoides R. F. Hoover 1939-4-25 4064 Contra Costa Richmond hills* Richmond hills; Richmond Comment
  SEINET10582750  Castilleja wightii Lawrence R. Heckard 1973-6-6 Heckard 3421 Contra Costa Ravine behind La Moine Park (Richmond). 122 Comment
  CAS-BOT-BC48834  Ceanothus cuneatus H. E. McMinn 1923-3-6 887 Contra Costa Mt. Diablo Comment
  POM300662  Ceanothus cuneatus Mary L. Bowerman 1932-5-1 1406 Contra Costa Oyster Ridge, outer steep face E of Alamo Creek Comment
  UCD111741  Ceanothus cuneatus W. Ebeling 1929-3-19 s.n. Contra Costa Mount Diablo. Comment
  PASA1643  Ceanothus cuneatus Annetta Carter 1929-3-31 Contra Costa Hills north of Mt. Diablo, near Clayton Comment
  UC692591  Ceanothus cuneatus var. cuneatus Mary L. Bowerman 1932-5-1 1406 Contra Costa Oyster Ridge, outer steep face of Alamo Creek, Mount Diablo Comment
  UC1281425  Ceanothus oliganthus var. sorediatus H. E. McMinn 1922-5-30 108 Contra Costa near Pinehurst (canyon though which runs the Oakland Antioch RR) Comment
  UC692586  Ceanothus oliganthus var. sorediatus Mary L. Bowerman 1932-9-17 1580 Contra Costa West branch of Donner Canyon Mount Diablo Comment
  CAS-BOT-BC63453  Ceanothus palmeri Mark Boone 1981-2-22 002 Contra Costa Mt. Diablo State Park 10.8 mi. from N. Park Gate. Comment
  CDA18840  Centaurea calcitrapa J. Vargas 1999-7-19 PDR 1219275 Contra Costa near the junction of Hwy 4 and Willow Pass Rd., nr. Concord. 0 Comment
  UCD159458  Centaurea calcitrapa D. S. Park; K. Yeo 2010-8-7 212 Contra Costa Mare Island. Along Railroad Rd. Growing next to old railroads w/ Cichorium, parsnip. Shrubby. Road blocked. 8 Comment
  CDA29161  Centaurea calcitrapa Deviney 2009-6-1 s.n. Contra Costa Martinez. McEwen Road. 0 Comment
  RSA153399  Centaurea calcitrapa T. C. Fuller 1961-9-13 7000 Contra Costa Fencerow of irrigated pasture, Hwy. J4, about 4 miles SE of Byron Comment
  UC2013017  Centaurea calcitrapa Barbara Ertter with Laura Fujii 1990-7-21 9400 Contra Costa Briones Regional Park, Briones Hills W of Pleasant Hill, weedy field along Homestead Valley trail. Comment
  JEPS111518  Centaurea melitensis D. G. Kelch 2005-5-13 05 .281 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 66 Comment
  JEPS99521  Centaurea solstitialis Mary L. Bowerman 1995-6-4 Contra Costa Mount Diablo. North Gate Road. Comment
  UC1050884  Centranthus ruber N. Floy Bracelin 1942-5-17 1288 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC691498  Centromadia fitchii Mary L. Bowerman 1935-9-13 3340 Contra Costa margin Hidden Pond Mount Diablo, Hidden Pond Comment
  CAS-BOT-BC288536  Centromadia fitchii David D. Keck 1933-11-2 2609 Contra Costa San Ramon, Crow Creek Canyon Rd, 0.5 mile from turnoff Comment
  CAS-BOT-BC288550  Centromadia fitchii Wm. F. Herrin 1922-7-4 s.n. Contra Costa Byron Springs Comment
  CAS-BOT-BC288873  Centromadia parryi subsp. congdonii R. E. Preston 1998-10-6 1171 Contra Costa On N side of Camino Tassajara, from Tassajara Hill Elementary School to 0.35 mile W of Finlay Rd 228 Comment
  UC1357605  Centromadia parryi subsp. congdonii R. F. Hoover 1966-8-31 9943 Contra Costa e Danville Comment
  CAS-BOT-BC288875  Centromadia parryi subsp. congdonii R. F. Hoover 1966-8-31 9943 Contra Costa Junction of Tassajara and Freitas Rds, E of Danville Comment
  CAS-BOT-BC288877  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
  UCD148253  Centromadia pungens Robert E. Preston 2013-6-21 2915 Contra Costa 3.5 mi SW of Byron. 72 Comment
  CAS-BOT-BC279109  Centromadia pungens subsp. laevis H. D. Ripley; R. C. Barneby 1954-5-1 11340 Contra Costa 1 mi. s. of Byron Hot Springs 15 Comment
  CAS-BOT-BC279179  Centromadia pungens subsp. pungens James McMurphy 1908-10-18 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC279185  Centromadia pungens subsp. pungens David D. Keck 1933-11-2 2613 Contra Costa 3 mi. S. of Martinez on road to Pacheco Comment
  CAS-BOT-BC279198  Centromadia pungens subsp. pungens John Thomas Howell; Gordon H. True 1972-6-29 48920 Contra Costa On Byron Hot Springs Road southeast of Byron Comment
  UC1563855  Centromadia pungens subsp. pungens Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8138 Contra Costa alkali sink w and adjacen to Clifton Court Forebay (ca 15 air mi sw of Stockton) 0 Comment
  CAS-BOT-BC279183  Centromadia pungens subsp. pungens H. M. Hall 1930-6-18 12796 Contra Costa Briones Valley Comment
  CAS-BOT-BC279202  Centromadia pungens subsp. pungens Volney Rattan 1886-6-15 s.n. Contra Costa Pacheco Valley Comment
  JEPS35033  Centromadia pungens subsp. pungens W. L. Jepson 1896-5-31 Contra Costa Wild Cat Creek Comment
  UC1606283  Cephalanthus occidentalis var. californicus Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10880 Contra Costa just w Antioch marina (Dow Wetlands Preserve, levee at n-center of preserve, at end of road); Dow Wetlands Preserve Comment
  JEPS111792  Cerastium fontanum subsp. vulgare D. G. Kelch 2005-5-13 05 .248 Contra Costa Martinez. South of oil refinery along Railroad tracks in fragment of habitat 28 Comment
  UC2027966  Cerastium fontanum subsp. vulgare Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15672 Contra Costa Martinez Regional Shoreline, south edge of Carquinez Strait. 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
  CAS-BOT-BC137010  Cercocarpus betuloides var. betuloides Mary L. Bowerman 1930-6-14 325 Contra Costa Mount Diablo. Summit area Comment
  UC555660  Cercocarpus betuloides var. betuloides Herbert L. Mason 1926-3-7 2710 Contra Costa Mount Diablo Comment
  UC691122  Cercocarpus betuloides var. betuloides Mary L. Bowerman 1931-3-7 548 Contra Costa summit of Meridian Peak, Mount Diablo Meridian Peak; Mount Diablo, Meridian Peak Comment
  UC34798  Chaenactis glabriuscula var. glabriuscula W. C. Blasdale 1893-5-13 Contra Costa Antioch Comment
  UC565564  Chaenactis glabriuscula var. glabriuscula H. L. Mason 1929-3-31 5157 Contra Costa Antioch, sand dikes along San Joaquin River San Joaquin River, Antioch Comment
  CAS-BOT-BC284218  Chaenactis glabriuscula var. megacephala M. K. C. 1886-5-1 26 Contra Costa Antioch Comment
  POM54137  Chaenactis glabriuscula var. megacephala C. F. Baker 1903-4-27 2940 Contra Costa Antioch Comment
  JEPS111956  Chamaesyce serpens D. G. Kelch 2004-9-2 04 .343 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Martinez (Ozol) 22 Comment
  RSA0027635  Chamaesyce serpillifolia subsp. serpillifolia Barbara Ertter, Chris Thayer 1996-10-25 15359 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park. 91 Comment
  UC2031491  Cheilanthes Barbara Ertter with David Gowen 2014-4-12 21718 Contra Costa On north side of Prospectors Gap Road ca 1 mile east of Mount Diablo summit, burnt in previous year's fire Comment
  JEPS94004  Cheilanthes gracillima J. Greenhouse 1998-6-14 Contra Costa w. of Burma Rd. Trail ca. 1 mi. above North Gate Rd. Mt. Diablo 426 Comment
  JEPS107063  Cheilanthes intertexta J. Greenhouse with Kevin Hintsa 2004-4-5 5086 Contra Costa Mt. Diablo, Fire Interpretive Trail, Devil's Pulpit 1088 Comment
  UC1199816  Chenopodium californicum Herbert L. Mason 1929-3-31 5158 Contra Costa Antioch Sacramento River Comment
  RSA0027945  Chenopodium californicum Barbara Ertter 1998-4-4 15964 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, west side of rocky knoll between northwestern-most ridge and Indian Valley School. Comment
  JEPS68928  Chenopodium multifidum Edward Lee 1934-9-30 1222 Contra Costa Moraga; just se of station Comment
  JEPS99594  Chenopodium murale Mary Bowerman 1993-10-22 Contra Costa Mount Diablo, Pine Pond. Comment
  UC2027886  Chenopodium murale Barbara Ertter with Chris Thayer 1996-10-25 15362 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park. Comment
  CDA39315  Chlorogalum pomeridianum var. pomeridianum D. G. Kelch 2005-6-24 5 .387 Contra Costa Carquinez Strait Region; 5th Street Prairie, Crockett. Comment
  RSA392753  Chorizanthe membranacea L. S. Rose 1941-5-15 41230 Contra Costa Mt. Diablo, w. slope 396 Comment
  CAS-BOT-BC30113  Chrysolepis chrysophylla var. minor W. B. Stephens 1919-11-22 s.n. Contra Costa Moraga ridge Comment
  JEPS48971  Chrysolepis chrysophylla var. minor H. M. Wheeler 1944-1-16 27512 Contra Costa Moraga Ridge; Oakland Hills Comment
  UC20919  Cicuta maculata var. bolanderi Jos. Burtt Davy 1900-6-7 6668 Contra Costa near Martinez Comment
  CAS-BOT-BC277974  Cirsium cymosum John Thomas Howell 1942-7-19 17039 Contra Costa Near Rock City, Mt. Diablo Comment
  CAS-BOT-BC277976  Cirsium cymosum John Thomas Howell 1931-5-12 6478 Contra Costa North side of Mt. Diablo Comment
  JEPS59168  Cirsium occidentale var. venustum W. L. Jepson 7571 a Contra Costa Mt. Diablo, Donner Canyon Contra Costa 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
  UC71884  Cirsium quercetorum Jos. Burtt Davy 1897-4-17 Contra Costa Point Isabel Comment
  CAS-BOT-BC162631  Clarkia R. D. Stone 1983-5-17 509 Contra Costa On ridge at northe end of Walker Ranch, near Alameda County line ca. 9 mi. NE of Livermore and 1 mi. NNE of Brushy Peak, upper Kellogg Creek drainage 342 Comment
  JEPS78818  Clarkia affinis Edward Lee 1936-5-24 2158 Contra Costa about 2 mi se Curry Canyon; Morgan Territory, Marsh Creek Comment
  UC2028318  Clarkia affinis Barbara Ertter, Susan D'Alcamo 1998-6-12 16159 Contra Costa North Gate Road on west flank of Mount Diablo, ca 1/2 mile below upper Turtle Rock Ranch buildings. Comment
  UCD35144  Clarkia affinis Beecher Crampton 1950-4-2 524 Contra Costa Contra Costa CountyL Site of Judsonville. Comment
  CDA9430  Clarkia biloba D. G. Kelch 1999-6-23 99 .001-D Contra Costa Carquinez Strait; Vaca Canyon along Alhambra Valley Road about 1.5 mile East of Pig Sale. Comment
  UC169380  Clarkia biloba Katharine Brandegee June 1905 Contra Costa Port Costa Comment
  CAS-BOT-BC163604  Clarkia biloba subsp. biloba A. D. E. Elmer 1903-5-1 4319 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC163606  Clarkia biloba subsp. biloba C. L. Hitchcock 1928-6-5 13 Contra Costa Between Porta Costa and Martinez, 1 1/2 mile from Port Costa 40 Comment
  CAS-BOT-BC163610  Clarkia biloba subsp. biloba Mary L. Bowerman 1930-6-22 355 Contra Costa Mitchell Canyon Comment
  LA45413  Clarkia concinna Joseph Andorfer Ewan; 1934-5-20 8932 Contra Costa Mt. Diablo, Russelmann Park Comment
  JEPS75483  Clarkia concinna subsp. concinna P. F. Yorks 1975-6-10 432 Contra Costa ca. 1.9 km s Bear Creek Road (on Hampton Rd., n of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  UC692496  Clarkia concinna subsp. concinna Mary L. Bowerman 1930-6-5 241 Contra Costa ca. 5 1/2 mi from North Gate (North Road); Mount Diablo 457 Comment
  CAS-BOT-BC163670  Clarkia purpurea subsp. quadrivulnera Mrs. E. C. Sutliffe 1920-5-30 s.n. Contra Costa Mt. Diablo Comment
  CDA9187  Clarkia purpurea subsp. quadrivulnera Christopher Thayer 1995-6-5 s.n. Contra Costa Carquinez Strait; W of Pinole Peak. Comment
  UC692488  Clarkia purpurea subsp. quadrivulnera Mary L. Bowerman 1933-6-7 2252 Contra Costa saddle between Meridian Peak and North Peak; Mount Diablo Comment
  CAS-BOT-BC163666  Clarkia purpurea subsp. quadrivulnera Mary L. Bowerman 1931-4-25 760 Contra Costa Mount Diablo. Above junction of North and South Roads Comment
  CAS-BOT-BC163674  Clarkia purpurea subsp. quadrivulnera H. L. Mason 1928-4-26 4379 Contra Costa Around Berkeley and Oakland Comment
  UC2028320  Clarkia purpurea subsp. viminea Barbara Ertter, Susan D'Alcamo 1998-6-12 16157 Contra Costa North Gate Road on west flank of Mount Diablo, ca 1/2 mile below upper Turtle Rock Ranch buildings. Comment
  UC1279898  Clarkia rubicunda Peter H. Raven 1957-6-20 10950 Contra Costa e end Tilden Regional Park (hillside at Inspiration Point) Comment
  POM249884  Clarkia rubicunda Joseph A. Ewan 1936-7-5 9744 Contra Costa Virginia Canyon, Berkeley Hills Comment
  RSA113595  Clarkia rubicunda Peter H. Raven 1957-7-5 11049 Contra Costa 0.2 mile from tip of Point Richmond Comment
  SEINET10777205  Clarkia rubicunda Barbara J. Ertter, J. Travis Columbus 1990-6-10 Ertter 9103 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill; jct of Briones Crest and Table Top trails on grassy knoll E of Briones Peak. 427 Comment
  CAS-BOT-BC165448  Clarkia unguiculata K. Brandegee s.n. Contra Costa Antioch Comment
  CAS-BOT-BC165452  Clarkia unguiculata Alice Eastwood 1922-3-17 11078 Contra Costa Mt. Diablo 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
  JEPS111556  Clarkia unguiculata A. G. Murdock 2003-6-2 81 Contra Costa Franklin Canyon - McHarry Ranch Rd 126 Comment
  UC107949  Clarkia unguiculata Katharine Brandegee June 1905 Contra Costa Port Costa Comment
  RSA448454  Clarkia unguiculata E. E. Stanford 1930-5-24 1510 Contra Costa Marsh Creek Canyon. Comment
  UCD32418  Clarkia unguiculata Beecher Crampton 1950-5-13 574 Contra Costa Southwest Walnut Creek. 30 Comment
  UCD36022  Clarkia unguiculata Beecher Crampton 1949-6-5 467 Contra Costa At base of Mount Diablo, on road from Byron to Clayton (Highway 4), along banks of Marsh Creek. 152 Comment
  UC172943  Claytonia exigua subsp. exigua C. F. Baker 1903-4-28 2816 Contra Costa Mt. Diablo, Mithcell's Canyon Comment
  CAS-BOT-BC439168  Claytonia exigua subsp. exigua John Thomas Howell 1926-3-7 1678 Contra Costa Mitchell Canon [Canyon], Mt. Diablo Comment
  POM300713  Claytonia exigua subsp. exigua Mary L. Bowerman 1931-4-19 736 Contra Costa Deer Flat; Rocky dry hillslope where the trail leaves the flat. Comment
  CAS-BOT-BC439331  Claytonia gypsophiloides Alice Eastwood 1921-6-11 10600 Contra Costa Mt. Diablo summit Comment
  CAS-BOT-BC439441  Claytonia parviflora subsp. parviflora A. A. Heller 1908-4-17 8909 Contra Costa Tracy 10 Comment
  JEPS48653  Claytonia parviflora subsp. parviflora Elsa Kraeger 1926-3-3 Contra Costa along road to summit of Mt. Diablo; Mt. Diablo 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
  RSA469286  Claytonia perfoliata Mark Morris 14913 Contra Costa Mt. Diablo. Comment
  POM300716  Claytonia perfoliata Mary L. Bowerman 1932-3-12 1111 Contra Costa Alamo Canyon; East-facing bank fifteen ft. above the stream. 351 Comment
  RSA31654  Claytonia perfoliata A. A. Heller 1908-4-17 8909 Contra Costa Tracy 11 Comment
  CAS-BOT-BC443683  Claytonia perfoliata subsp. perfoliata Walter Knight 1965-3-1 904 Contra Costa Antioch dunes Comment
  UC1057451  Claytonia perfoliata subsp. perfoliata G. Thomas Robbins 1937-4-25 148 Contra Costa 2 mi e Alamo Comment
  UC1136717  Claytonia perfoliata subsp. perfoliata R. C. Wilson 1935-3-12 121 Contra Costa 1.5 mi ne Danville; Mt. Diablo Quad. 198 Comment
  CAS-BOT-BC91358  Clematis lasiantha H. E. McMinn 1922-6-2 129 Contra Costa Mount Diablo. Comment
  CAS-BOT-BC91360  Clematis lasiantha Alice Eastwood 1915-5-30 4460 Contra Costa Mount Diablo. Comment
  CAS-BOT-BC91361  Clematis lasiantha Alice Eastwood 1915-5-30 4552 Contra Costa Mount Diablo. Comment
  UC545776  Clematis lasiantha Annetta M. Carter 1935-6-1 874 Contra Costa n.w. slope of main peak Mt. Diablo 1005 Comment
  RSA0028269  Clinopodium vulgare Barbara Ertter, David Gowen 2012-6-9 21018 Contra Costa Lower Vollmer Peak Trail paralleling South Drive, southeastern Tilden Park in Berkeley Hills. 426 Comment
  JEPS23273  Collinsia heterophylla Rimo Bacigalupi with G. T. Robbins 1959-4-24 7043 Contra Costa 0.5 mi n Jct of Hampton Rd and Bear Creek Rd (along Hampton Rd, just n of summit) 228 Comment
  UC691588  Collinsia heterophylla Mary L. Bowerman 1930-6-7 270 Contra Costa Mount Diablo, summit of Meridian Peak Meridian Peak; Mount Diablo, Meridian Peak Comment
  JEPS6336  Collinsia sparsiflora var. collina Mary L. Bowerman 1933-4-9 1836 Contra Costa w fork Donner Canyon Mount Diablo (Mount Diablo); Donner Canyon 243 Comment
  UC691559  Collinsia tinctoria Mary L. Bowerman 1935-5-30 3090 Contra Costa Mount Diablo, Eagle Point Ridge, Rock slide, Bay-10 ft to e Eagle Point Ridge; Mount Diablo, Eagle Point Ridge 350 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
  UCSB12513  Conium maculatum Grah, Nancy 1962-4-14 Contra Costa 0.1 mile on Tappan Lane morth of Tarry Lane, Orinda Comment
  SEINET198892  Convolvulus sepium var. communis Ira L. Wiggins 1954-5-9 13123 Contra Costa Levee along Bethel Island Comment
  UC2027732  Conyza bonariensis Barbara Ertter 1997-2-16 15462 Contra Costa Shell Ridge Open Space on west flank of Mount Diablo, Deer Lake dam. Comment
  RSA537699  Cordylanthus nidularius T. I. Chuang 1975-6-29 7517 Contra Costa Northeast of Deer Flat, Mount Diablo Comment
  UC1795844  Cordylanthus pilosus subsp. pilosus Barbara Ertter, M. L. Bowerman, L. Schultheis, Kevin Hintsa 1995-10-22 14537 Contra Costa Three Springs Trail on northeast side of Mt. Diablo, in woods above ranch, north-facing slope. Comment
  CAS-BOT-BC209749  Cornus glabrata V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Comment
  CAS-BOT-BC210452  Cornus sericea subsp. occidentalis John Thomas Howell 1925-11-7 1559 Contra Costa San Leandro Canyon near Canyon Station Comment
  JEPS50136  Cornus sericea subsp. sericea W. L. Jepson 1914-10-31 6212 Contra Costa Oakland Hills, Moraga Ridge Comment
  UC1606422  Cornus sericea subsp. sericea Barbara Ertter, Chris Thayer 1993-5-7 11697 Contra Costa EBMUD land e. of Tilden Park (Hopkins Spring 1/2 mi. s.e. of Inspiration Pt. on Wildcat Canyon Rd.) 304 Comment
  LA40446  Cornus sericea subsp. sericea J. A. Ewan; 1936-7-5 9720 Contra Costa Reservoir road, Wildcat Creek Comment
  UC651290  Coronopus didymus Ira L. Wiggins 1930-4-18 4595 Contra Costa e end of Jersey Island, Fallow cornfield Jersey Island Comment
  UC1005623  Corylus californica Frank W. Gould 1940-2-8 865 Contra Costa Grizzly Peak, N side 289 Comment
  CAS-BOT-BC453357  Cotoneaster lacteus P. F. Zika; B. Ertter 2007-5-11 22968 Contra Costa Near Arlington Boulevard and Brewster Drive, city of El Cerrito (SnFrB = San Francisco Bay Area) 210 Comment
  UC1620000  Cotoneaster lacteus Barbara Ertter 1997-1-5 15432 Contra Costa Ygnacio Valley Road at Lime Ridge between Walnut Creek and Clayton, south facing roadcut. Comment
  UC2028952  Cotoneaster pannosus Barbara Ertter 2000-7-16 17388 Contra Costa lower Pine Creek in Diablo Foothills Regional Park. 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
  HSC5425  Cotula coronopifolia Greg Bos 1963-4-14 75 Contra Costa Bayshore Freeway at Central Ave., Richmond 0 Comment
  CAS-BOT-BC427577  Crassula aquatica Peter H. Raven; H. L. Mason; R. Ornduff; et al 1957-4-4 10577 Contra Costa 3.0 miles s. of Byron Comment
  CAS-BOT-BC427924  Crassula solieri Brandegee No date on label s.n. Contra Costa Antioch Comment
  UCR115055  Cressa truxillensis G. Fred Hrusa, R. York 1998-7-17 14720 Contra Costa Sacramento-San Joaquin River Delta, E end of Dow Chemical property. 12 Comment
  UC1121528  Crocanthemum scoparium var. vulgare R. W. Lundh Contra Costa San Francisco Quadrangle Comment
  UC765094  Croton californicus R. F. Hoover 1937-5-14 2113 Contra Costa Antioch sand-dunes Comment
  CDA35288  Croton californicus F. J. Brucato 1962-8-21 Contra Costa Antioch, Wilbur Ave, 1 mile west of Hwy 24. 0 Comment
  UCD141936  Croton californicus R. F. Hoover 1935-3-10 s.n. Contra Costa Antioch. Comment
  RSA720790  Crypsis schoenoides Barbara Ertter, Mary L. Bowerman, Lisa Schultheis, Kevin Hintsa 1995-10-22 14532 Contra Costa Three Spring Trail on northeast side of Mt. Diablo, south of crest of Marsh Creek Rd. Comment
  CAS-BOT-BC361415  Crypsis schoenoides Peter Rubtzoff 1968-9-18 5964 Contra Costa North Gate Road, ca. 5 miles northwest of Mt. Diablo State Park north entrance. Comment
  UC1950064  Crypsis vaginiflora Barbara Ertter 1989-9-30 8865 Contra Costa Tilden Regional Park E of El Cerrito, East Bay Skyline Nat'l Recreation Trail (=Nimitz Way), pond 1 1/4 mi NW of Inspiration Point. Comment
  UC691350  Cryptantha clevelandii Mary L. Bowerman 1933-5-18 2129 Contra Costa Southwest of Blackberry Spring Comment
  UC407075  Cryptantha flaccida L. R. Abrams 1921-5-25 8017 Contra Costa Mt. Diablo Comment
  UC691401  Cryptantha flaccida Mary L. Bowerman 1932-4-16 1348 a Contra Costa Eagle Point Mount Diablo Comment
  POM64396  Cryptantha microstachys C. F. Baker 1903-4-28 2810 Contra Costa Mitchell s Canyon, Mt. Diablo. Comment
  UC691346  Cryptantha muricata Mary L. Bowerman 1933-5-2 1938 Contra Costa below Pioneer Camp; Mount Diablo 762 Comment
  UC691393  Cryptantha nevadensis var. rigida Mary L. Bowerman 1932-4-9 1331 Contra Costa Mount Diablo; Inner Black Hills, small ridge E of S spur on meridian Comment
  UC1795800  Cryptantha torreyana Barbara Ertter, Mary L. Bowerman 1994-6-19 12846 a Contra Costa Mt. Diablo State Park east of Walnut Creek; lower Summit Parking Lot, opening on North side, 1127 Comment
  CAS-BOT-BC224390  Cuscuta californica James McMurphy 1908-10-18 s.n. Contra Costa Antioch Comment
  JEPS124470  Cuscuta subinclusa Daniel Slakey with CNPS Volunteers 2015-7-6 143 Contra Costa Mt. Diablo, about 200 m north of Frog Pond, near stream. Comment
  UC2028562  Cuscuta subinclusa Barbara Ertter with Mary Bowerman 1996-11-1 15409 Contra Costa North base of Mount Diablo, south end of Hetherington Trail at Donner Creek crossing. Comment
  UCD33766  Cynara cardunculus Beecher Crampton 1972-11-21 8888 Contra Costa 2 miles east of Crockett. Comment
  CAS-BOT-BC299742  Cynara cardunculus John Thomas Howell 1953-3-15 28922 Contra Costa Danville Comment
  CHSC23352  Cynodon dactylon Willis Ball 1975-5-15 527 Contra Costa Contra Loma Regional Park. In area #1 ca. 3 yds w of restroom facility at s end of reservoir. In lawn by beach area. 30 Comment
  CAS-BOT-BC190224  Cynodon dactylon Mary L. Bowerman 1936-8-17 3526 Contra Costa Mount Diablo. Sulphur Springs in Pine Canyon. 137 Comment
  CDA34471  Cynoglossum grande D. G. Kelch 2006-2-25 6 .083 Contra Costa Carquinez Strait; Crockett. Edwards Canyon. Comment
  UC615167  Cynoglossum grande Beryl O. Schreiber 1932-2-27 27 Contra Costa Redwood Canyon Comment
  JEPS99550  Cynosurus echinatus Mary Bowerman 1976-6-24 Contra Costa Mount Diablo, inner Black Hills just west of meridian and south of crest. Comment
  UC2061523  Cynosurus echinatus Dean G. Kelch 2016-5-27 16 .139 Contra Costa Miller-Knox Hill. Comment
  CAS-BOT-BC114613  Cyperus eragrostis James McMurphy 1908-10-18 s.n. Contra Costa Antioch Comment
  UC1606358  Cyperus eragrostis Barbara Ertter, Brad Olson 1991-9-28 10848 Contra Costa s. end San Pablo Reservoir (between Orinda and El Sobrante) 97 Comment
  CAS-BOT-BC114615  Cyperus eragrostis Walter Knight; Harry Reeves 1979-8-25 3407 Contra Costa In natural marsh E of reservoir. Contra Loma Regional Park near Antioch. 22 Comment
  UC691967  Cyperus niger Mary L. Bowerman 1932-11-11 1640 Contra Costa Mt. Diablo, Lower Moses Rock Spring 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
  UC1790262  Datura stramonium Rudolf Schmid 2005-8-15 2005 -2 Contra Costa 16 Edwin Fr., Kensington, CA 94707-1022 169 Comment
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Apr 2 2012
  UC2029145  Datura stramonium Barbara Ertter 1999-8-21 16790 Contra Costa Lower Mitchell Canyon Road on NW base of Mount Diablo. Comment
  CDA965  Daucus pusillus D. G. Kelch 2005-6-14 5 .333 Contra Costa East Bay; San Pablo. North Alvarado Park, south of San Pablo Dam Rd. Comment
  CAS-BOT-BC287365  Deinandra Walter Knight 1977-7-24 s.n. Contra Costa Black Diamond Mines Regional Preserve. Nortonville Ridge 304 Comment
  RSA216745  Deinandra bacigalupii Robert F. Hoover 1969-8-29 11564 Contra Costa Raymond Road and Ames Street, Livermore Valley. Comment
  UC32716  Deinandra corymbosa J. Burtt Davy 1896-1-1 Contra Costa Moraga Pass Comment
  CAS-BOT-BC287375  Deinandra corymbosa H. M. Hall 1914-8-23 9862 Contra Costa Giant 22 Comment
  UCD35140  Deinandra corymbosa Beecher Crampton 1950-6-20 596 Contra Costa Richmond Comment
  CAS-BOT-BC294018  Deinandra kelloggii Mrs. Curran 1883-5-1 s.n. Contra Costa Antioch Comment
  JEPS12619  Deinandra kelloggii Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  JEPS102902  Delairea odorata Barbara Ertter, Chris Thayer 1996-10-25 15358 Contra Costa Little Pine Creek, Diablo Foothills Regional Park Mount Diablo Comment
  CDA933  Delphinium californicum D. G. Kelch 2005-6-14 5 .335 Contra Costa East Bay; San Pablo. North Alvarado Park, south of San Pablo Dam Rd. Comment
  SEINET12087144  Delphinium decorum J. T. Howell 1933-1 11279 Contra Costa Hills E of St. Mary's College Comment
  RSA148112  Delphinium hansenii Harlan Lewis, C. Epling 1946-5-5 605 Contra Costa 0.5 miles S of Somersville Comment
  UC912567  Delphinium hesperium subsp. pallescens H. L. Mason 1928-4-29 4423 Contra Costa s slope of mt Mount Diablo, Sycamore Canyon Comment
  UC596470  Delphinium nudicaule R. F. Hoover 1938-5-4 3340 Contra Costa Marsh Creek canyon Comment
  JEPS99976  Delphinium patens G. Smick 2003-3-25 GAS 79 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC635344  Delphinium patens H. L. Mason 1929-3-29 5136 Contra Costa Marsh Creek Rd 2 mi above Clayton Comment
  UC692138  Delphinium patens subsp. patens Mary L. Bowerman 1931-3-21 584 Contra Costa w-facing slope Mount Diablo, Sycamore Canyon Comment
  UC69614  Delphinium patens subsp. patens H. P. Chandler 1900-3-23 Contra Costa Fish Ranch Road Region of Mount Diablo Comment
  HSC47893  Delphinium recurvatum Carl Epling, G. Miles 1945-3-23 542 Contra Costa 5 miles west of Tracy-Byron road on road to Byron Hot Springs Comment
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Aug 17 2011
  JEPS65179  Delphinium recurvatum L. R. Heckard 1971-4-15 2488 Contra Costa railroad embankment at intersection of Holey Rd; s of Byron Comment
  RSA148057  Delphinium recurvatum C. Epling 1945-3-23 542 Contra Costa 5 miles west of Tracy-Byron road on road to Byron Hot Springs Comment
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Aug 17 2011
  POM199453  Delphinium variegatum subsp. variegatum Katherine Brandegee s.n. Contra Costa Antioch Comment
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Sep 3 2010
  CAS-BOT-BC11023  Dendromecon rigida W. W. Carruth 1907-5-1 s.n. Contra Costa Moraga Valley Comment
  JEPS51676  Dendromecon rigida Chesnut and Drew April, 1890 Contra Costa Sommersville Comment
  UC1051410  Dendromecon rigida Helen K. Sharsmith 1954-3-24 4408 Contra Costa canyon above old Nortonville Mines (near Kirker Pass Road between Clayton and Antioch) 304 Comment
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Oct 2 2015
  UC634890  Dendromecon rigida H. L. Mason 1925-1-11 1177 Contra Costa Moraga Ridge Comment
  UC692101  Dicentra chrysantha Mary L. Bowerman 1932-9-3 1529 Contra Costa Muir Area; Mount Diablo Comment
  UC72731  Dicentra chrysantha Milo S. Baker 1904-6-24 Contra Costa near Mt. Diablo summit; Mt. Diablo Comment
  POM272496  Dicentra chrysantha L. R. Abrams 1921-5-25 8007 Contra Costa Halfway up road, Mt. Diablo Comment
  CAS-BOT-BC500075  Dichelostemma capitatum Barrett Anderson 1987-4-30 3503 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole Dam site for EBMUD. 125 Comment
  CAS-BOT-BC500089  Dichelostemma capitatum R. F. Hoover 1938-2-21 2756 Contra Costa Point Richmond Comment
  CAS-BOT-BC500092  Dichelostemma capitatum Jeanne R. Janish; Edward Janish 1948-3-23 244 Contra Costa Open hillside of Stony Gorge Dam, Elk Creek. Comment
  RSA721369  Dichondra donelliana Barbara Ertter, Gary Schoolcraft 1996-4-7 14574 Contra Costa Pont San Pablo in west Richmond. Comment
  CAS-BOT-BC150330  Diplacus aurantiacus Alice Eastwood 1921-4-18 10287 Contra Costa Antioch Comment
  UCD137498  Dipsacus fullonum P. B. Kennedy 1917-2-8 s.n. Contra Costa Craigmont. Comment
  CAS-BOT-BC121839  Dirca occidentalis Walter Knight; Irja Knight 1967-1-24 2057 Contra Costa Tilden Regional Park, near little train Comment
  CAS-BOT-BC121843  Dirca occidentalis Frank Walton Gould 1940-2-8 864 Contra Costa Grizzly Peak 289 Comment
  CAS-BOT-BC121845  Dirca occidentalis P. H. Raven 1956-4-8 8986 Contra Costa About 0.5 miles NE of Grizzly Peak 396 Comment
  CHSC22236  Dirca occidentalis Robert A. Schlising 1962-2-21 2079 Contra Costa Berkeley-Oakland hills of westernmost part of county. Comment
  RSA40099  Dirca occidentalis L. S. Rose 1948-3-9 s.n. Contra Costa Head of Wildcat Creek, Berkeley Hills 457 Comment
  SEINET7030710  Dirca occidentalis Barbara Ertter 1999-4-4 s.n. Contra Costa Redwood Regional Park in Oakland Hills, open slopes near Moon Trail head. Voucher for molecular sample. Comment
  JEPS102900  Distichlis spicata Barbara Ertter, Chris Thayer 1996-10-25 15369 Contra Costa North Gate Road Mount Diablo 121 Comment
  JEPS12755  Distichlis stricta Rimo Bacigalupi with G. T. Robbins 1955-5-4 4971 Contra Costa on Ygnacio Valley-Clayton Rd. 1.5 mi e Walnut Creek (margins of sulphur spring) 60 Comment
  RSA739726  Dittrichia graveolens John Dittes 2006-10-26 1412 Contra Costa San Joaquin Valley (foothills near NW edge) 2 air mile S of Marsh Creek Reservoir Gauging Station, 1.6 air mile SW of intersection of Camino Diablo and Vasco Road, Contra Costa Water District's Los Vaqueros Watershed Mitigation. 67 Comment
  UC2042955  Dittrichia graveolens Barbara Ertter with David Gowen, Mike Park and Abby Moore 2006-11-24 18785 Contra Costa Mt Diablo State Park, Live Oak Campground. Comment
  JEPS128778  Dittrichia graveolens Kevin Hintsa 1997-9-30 Contra Costa Mount Diablo State Park, Live Oak Campground. Comment
  JEPS21206  Dodecatheon clevelandii subsp. patulum Herbert L. Mason 1925-2-28 1260 Contra Costa 1/2 mi e Rodeo; e of Rodeo Comment
  JEPS99973  Dodecatheon hendersonii S. O'Neil 2003-3-11 SEO 7 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC517947  Dodecatheon hendersonii John Thomas Howell 1931-3-10 5756 Contra Costa on Livermore Road 7 mi from Clayton; e side Mt. Diablo, 7 mi from Clayton Comment
  JEPS18331  Downingia insignis Lewis S. Rose 1936-4-24 36154 Contra Costa 8 mi s Antioch 30 Comment
  UC1736620  Downingia insignis Dean W. Taylor 1991-5-2 11632 Contra Costa Byron Hot Springs Road, ca. 0.3 miles S of Holey Road, 39 Comment
  UC583159  Downingia insignis Lewis S. Rose 1936-4-24 36154 Contra Costa 8 mi s Antioch 30 Comment
  RSA107032  Downingia insignis L. S. Rose 1956-4-16 56017 Contra Costa 2 miles SE of Byron 8 Comment
  RSA436120  Downingia insignis L. S. Rose 1936-4-24 36154 Contra Costa 8 miles S of Antioch. 30 Comment
  RSA622149  Downingia insignis John A. Churchill 1974-4-15 7441521 Contra Costa Between Route K4 and railroad at Holey Road. Comment
  OBI48705  Downingia ornatissima Lewis S. Rose 1940-4-30 40258 Contra Costa 4 mi S of Antioch 30 Comment
  UC765585  Downingia ornatissima var. eximia R. F. Hoover 1941-4-12 4841 Contra Costa 2 mi s Antioch Comment
  UC725662  Downingia ornatissima var. eximia A. A. Heller 1942-4-20 16432 Contra Costa w of Antioch (near the golf links) Comment
  UC1188727  Downingia pulchella John H. Weiler 1959-4-11 5947 Contra Costa se of Martinez (near the airport along State Highway 24) Comment
  UC2027994  Draba verna Barbara Ertter with Tony Morosco 1998-4-12 16024 Contra Costa Mount Olympia on north side of Mount Diablo, midway down Olympia Road from summit. Comment
  CAS-BOT-BC159644  Drymocallis glandulosa var. glandulosa Mary L. Bowerman 1938-6-14 3679 Contra Costa Canyon Nook, one foot above stream - Mount Diablo Comment
  CAS-BOT-BC428218  Dudleya cymosa subsp. paniculata John Thomas Howell 1942-5-24 16967 A Contra Costa Eagle Peak, Mt. Diablo Comment
  JEPS49893  Dudleya cymosa subsp. paniculata W. L. Jepson 1918-6-5 7604 Contra Costa North Peak Mount Diablo Comment
  UC830948  Dudleya cymosa subsp. paniculata Alice Eastwood 1915-5-30 Contra Costa near type locality; Mount Diablo Comment
  UC1606408  Dudleya farinosa Barbara Ertter 1992-7-25 11261 Contra Costa s end Point Richmond (near Brickyard Landing, above rr tracks) Comment
  UCD60759  Echinochloa colona Beecher Crampton 1965-9-26 7528 Contra Costa 2 miles south of Brentwood, junction Walnut Ave, and Marsh Creek Road. Comment
  SJSU10392  Echinochloa crus-galli J. E. Cox 1976-11-26 Contra Costa right of way of Dolores E Bay Municipal Utilities District, Lafayette Comment
  UC1795670  Echinochloa crus-galli Barbara Ertter, Kristin Ertter 1995-7-11 14486 Contra Costa West side of Mt Diablo; mudflat around inlet to Pine Pond. Comment
  UC2028441  Echinochloa crus-galli Barbara Ertter with Chris Thayer 1996-10-25 15364 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park Comment
  SD107682  Eclipta prostrata Walter Knight, Irja Knight 1980-8-26 Contra Costa Pond's edge in a sewage disposal plant. Comment
  UC1606287  Egeria densa Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10864 Contra Costa just w Antioch marina (accessed from marina); Dow Wetlands Preserve Comment
  JEPS99522  Elatine brachysperma Mary L. Bowerman 1975-9-14 Contra Costa Mount Diablo, Hidden Pond. Comment
  UC1606336  Elatine californica Barbara Ertter, Brad Olson 1991-9-28 10829 Contra Costa betw Orinda and El Sobrante San Pablo Reservoir Comment
  UC1606337  Eleocharis acicularis Barbara Ertter, Brad Olson 1991-9-28 10832 Contra Costa S end of San Pablo Reservoir between Orinda and El Sobrante Comment
  RSA721534  Eleocharis acicularis var. acicularis Mary L. Bowerman 1975-9-14 s.n. Contra Costa Mount Diablo. Comment
  UC1812  Eleocharis macrostachya J. Burtt Davy 1897-9-4 4077 Contra Costa Stege Comment
  UC691970  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
  JEPS111062  Eleocharis macrostachya Lee Echols 2003-6-20 s.n. Contra Costa Richmond Field Station, SW corner of Danthonia grassland N of Lark Drive 15 Comment
  UC1818864  Eleocharis macrostachya Barbara Ertter, Kristin Ertter 1995-7-11 14471 Contra Costa Sulfur Spring on Pine Cr, Diblo Foothill Regional Park, marshy wet ground. 121 Comment
  UC691969  Eleocharis parishii Mary L. Bowerman 1931-4-11 705 a Contra Costa Sulphur Spring in Pine Canyon Mount Diablo 137 Comment
  CAS-BOT-BC112218  Eleocharis rostellata Miss Mary Leolin Bowerman 1967-7-19 37175 Contra Costa NW end of Shell Ridge, just S of the highway (Heather Farm), by sulphurous stream. Comment
  JEPS123456  Eleusine tristachya Zoya Akulova-Barlow 2011-7-27 s.n. Contra Costa Along Bear Creek Rd. Comment
  UC756633  Elymus G. L. Stebbins Jr. 1946-6-9 3659 Contra Costa 2 mi e El Cerrito (near Mira Vista Country Club) Comment
  RSA264278  Elymus X gouldii A. A. Beetle 1941-6-24 1751 Contra Costa Pt. Richmond on San Francisco Bay Comment
  JEPS99567  Elymus elymoides Mary Bowerman 1975-6-7 Contra Costa Mount Diablo, by Big Spring trail. Comment
  POM205600  Elymus glaucus Jos Burtt Davy 1897-04 1762 Contra Costa Point Isabel. Comment
  SEINET252197  Elymus glaucus David Amme 1988-8-16 Contra Costa Kensington Comment
  UC766736  Elymus glaucus R. F. Hoover 1941-5-19 5105 Contra Costa Claremont Rd Berkeley Hills (e side of hills) Comment
  CAS-BOT-BC203431  Elymus glaucus subsp. glaucus Mary L. Bowerman 1934-4-21 2542 Contra Costa Mount Diablo. Beside Pioneer Camp road east of Pioneer Camp Comment
  SEINET10558327  Elymus glaucus var. jepsonii Willis L. Jepson 1943-6-8 Jepson 20848 Contra Costa Northeast slope in woods. Moraga Ridge. Comment
  CAS-BOT-BC228539  Elymus multisetus L. R. Abrams 1921-5-25 8004 Contra Costa On road to summit Mt. Diablo Comment
  UC691171  Elymus multisetus Mary L. Bowerman 1938-6-24 3690 Contra Costa Canyon Nook Mount Diablo (e side of creek) 670 Comment
  UC2028480  Elymus multisetus Barbara Ertter with Richard K. Brummitt 1998-5-6 16103 Contra Costa Point San Pablo west of Richmond, crest of road to yacht harbor Comment
  UC691178  Elymus trachycaulus Mary L. Bowerman 1935-6-15 3128 Contra Costa ridge running n from Mitchell-Pine divide (at 3100 ft level); Mount Diablo 868 Comment
  UC1795674  Elymus trachycaulus subsp. trachycaulus Barbara Ertter, Holly Forbes 1996-2-11 14550 Contra Costa North side Mount Diablo; North Peak trail on east side on main peak, steep slope, openings among scrub oak, umbellularia. 1005 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
  UC692459  Epilobium brachycarpum Mary L. Bowerman 1930-8-31 448 a Contra Costa e main road (near gully); Mount Diablo, Inner Black Hills Comment
  CDA38092  Epilobium canum A. G. Murdock 2003-9-12 197 Contra Costa Carquinez Strait Region; Crockett - Tormey Headlands. At Superfund overlook. Comment
  UC1122299  Epilobium canum subsp. canum R. W. Lundh 1932-9-22 167 Contra Costa 1 mi sw Mt. Diablo; Mt. Diablo Quadrangle 914 Comment
  CAS-BOT-BC166168  Epilobium canum subsp. canum H. E. McMinn 92 Contra Costa From n. slope of Mt. Diablo near the summit Comment
  CAS-BOT-BC166826  Epilobium canum subsp. latifolium K. Brandegee s.n. Contra Costa Mt. Diablo Comment
  CDA38073  Epilobium ciliatum subsp. ciliatum A. G. Murdock 2004-5-28 295 Contra Costa Carquinez Strait; Refugio Valley. Comment
  UC692457  Epilobium ciliatum subsp. ciliatum Mary L. Bowerman 1930-10-4 476 Contra Costa Maple Spring Mount Diablo Comment
  UC2028972  Epilobium ciliatum subsp. ciliatum Barbara Ertter 2000-7-16 17392 Contra Costa lower Pine Creek in Diablo Foothills Regional Park. Comment
  UC635735  Epilobium cleistogamum M. K. Curran May 1886 Contra Costa Antioch Comment
  UC692455  Epilobium minutum Mary L. Bowerman 1931-5-16 850 Contra Costa summit Mount Diablo 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
  UC692443  Epilobium torreyi Mary L. Bowerman June 1942 3847 Contra Costa lower Rock City Camp; Mount Diablo Comment
  UCD138951  Epipactis gigantea Terri Williamson 1990-6-2 89 Contra Costa 212 Poshard Street, Pleasant Hill. 12 Comment
  CAS-BOT-BC57103  Equisetum X ferrissii W. Knight; I. Knight 1977-5-22 s.n. Contra Costa Antioch Dunes Comment
  CAS-BOT-BC57259  Equisetum laevigatum Mary L. Bowerman 1931-5-16 864 Contra Costa Lower Silver Spring Comment
  UC692131  Equisetum telmateia subsp. braunii Mary L. Bowerman 1939-3-31 3737 Contra Costa Johnny Walker Spring Mt. Diablo 731 Comment
  UC2028442  Eragrostis mexicana subsp. virescens Barbara Ertter with Chris Thayer 1996-10-25 15365 Contra Costa Northwest flank of Mount Diablo, Northgate Trail along Little Pine Creek between North Gate Road and Diablo Foothills Regional Park Comment
  UC1784081  Eriastrum ertterae Barbara Ertter with Tony Morosco 1998-10-18 16441 Contra Costa Lime Ridge Open Space, in saddle SE of microwave towers on summit Comment
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Oct 13 2013
  RSA0120805  Eriastrum pluriflorum subsp. pluriflorum Brandegee 1883-06 s.n. Contra Costa Antioch. Comment
  UC1118630  Ericameria arborescens R. C. Wilson 1935-3-13 128 Contra Costa 1.5 mi w of Cave Pt.; Mt. Diablo Quadrangle 563 Comment
  UC691864  Ericameria arborescens Mary L. Bowerman 1933-9-9 2438 Contra Costa ridge above Frog Pond; Mt. Diablo Comment
  UC61518  Ericameria arborescens A. B. Simonds Contra Costa Comment
  JEPS31295  Ericameria linearifolia Elsa Kraeger 1926-3-7 Contra Costa w side Mt. Diablo Comment
  JEPS31300  Ericameria linearifolia W. L. Jepson 1921-5-22 9203 Contra Costa summit Mount Diablo 1127 Comment
  JEPS31312  Ericameria linearifolia W. L. Jepson 1922-5-23 9719 Contra Costa summit Mt. Diablo Comment
  RSA72858  Ericameria linearifolia A. Kellogg, W. G. W. Harford 1868-5-28 548 Contra Costa Mt. Diablo Comment
  UC186077  Ericameria linearifolia K. Brandegee May 1886 Contra Costa Antioch Comment
  UC135196  Erigeron foliosus var. franciscensis Katharine Brandegee 1907-6-16 Contra Costa hills bet. Antioch and Marsh Creek Comment
  UC691858  Erigeron foliosus var. franciscensis Mary L. Bowerman 1930-6-28 407 Contra Costa summit Meridian Peak Comment
  UC1818984  Erigeron foliosus var. franciscensis Barbara Ertter 1994-6-26 12874 Contra Costa South of Point Molate Beach Park in west Richmond north of San Rafael Bridge, perennial grassland on bluff above beach between park and Point Castro. Comment
  UC31418  Erigeron lonchophyllus F. P. McLean 1875-3-1 Contra Costa Mt. Diablo Comment
  RSA15452  Eriodictyon californicum Alice Eastwood, J. T. Howell 1936-4-19 s.n. Contra Costa Nortonville. Comment
  RSA401488C  Eriodictyon californicum Cora Mae Life 1923-7-4 95 Contra Costa Mt Diablo. Comment
  POM300577  Eriogonum Mary L. Bowerman 1932-11-11 1639 Contra Costa Little below Moses Rock Spring: dry grassy ridge, leading up from Buckle Point (on west road). Comment
  POM165547  Eriogonum angulosum H. M. Hall 1916-8-17 10276 Contra Costa Deer Valley 183 Comment
  UC1094040  Eriogonum gracile Lewis S. Rose 1955-10-17 55187 Contra Costa sand hills, Antioch Antioch 15 Comment
  UC2012971  Eriogonum gracile Barbara Ertter with Tony Morosco 1996-7-27 15040 Contra Costa Mount Diablo State Park, Cardinet Oaks Road at crossing of Donner Creek. Comment
  UC2027963  Eriogonum gracile Barbara Ertter 1997-8-24 15772 Contra Costa Mount Diablo, near first corner on Summit Road below Toyon Campground. Comment
  UC1735889  Eriogonum gracile var. gracile Dean W. Taylor 1992-4-16 12388 B Contra Costa S of Byron Hot Springs, in swale draining on E margin of NE1/4 SE1/4 Section 34S of Byron Hot Springs, in swale draining on E margin of NE1/4 SE1/4 Section 34 45 Comment
  UC6565  Eriogonum gracile var. gracile Edw. L. Greene 1892-6-20 Contra Costa Mount Diablo Comment
  UC692050  Eriogonum gracile var. gracile Mary L. Bowerman 1930-9-9 458 Contra Costa North Peak, Mount Diablo Mount Diablo; above Gabriel-Hinks'? Comment
  UC521769  Eriogonum luteolum var. luteolum Joseph Andorfer Ewan 1933-10-15 8022 Contra Costa sw slope Mt. Diablo Mt. Diablo Comment
  JEPS75518  Eriogonum nudum var. auriculatum P. F. Yorks 1975-7-18 475 -A Contra Costa ca. 1.7 km s on Hampton Road in Hampton Road Natural Preserve Bear Creek Road (n of Briones Reservoir) 190 Comment
  UC692046  Eriogonum nudum var. auriculatum Mary L. Bowerman 1931-9-12 1037 Contra Costa Mitchell Canyon, spur jutting out into w fork Mount Diablo 838 Comment
  UC692198  Eriogonum nudum var. auriculatum Mary L. Bowerman 1932-10-1 1597 Contra Costa s Uncle Sam Canyon (Eagle Point Ridge); Mount Diablo Comment
  CAS-BOT-BC268909  Eriogonum nudum var. auriculatum John Thomas Howell 1930-7-4 5337 Contra Costa In the north Berkeley Hills Comment
  SEINET10733565 Image available Eriogonum nudum var. psychicola Barbara J. Ertter 1997-8-18 Ertter 15766 Contra Costa Antioch Dunes (USFWS National Wildlife Refuge) on San Joaquin River east of Antioch, southwest corner of refuge north of railroad tracks in former vineyard, fine pale brown sand. Comment
  CAS-BOT-BC269822  Eriogonum nudum var. pubiflorum H. L. Mason 1929-9-21 5433 Contra Costa Along Marsh Creek Road three miles above Clayton Comment
  UC692163  Eriogonum nudum var. pubiflorum Mary L. Bowerman 1930-9-9 451 Contra Costa above Gabriel-Hinks' (North Peak); Mount Diablo Comment
  CAS-BOT-BC267440  Eriogonum truncatum John Thomas Howell 1934-4-8 11816 Contra Costa 10 miles from Clayton on Marsh Creek road Comment
  CAS-BOT-BC267444  Eriogonum truncatum Mary L. Bowerman 1933-5-25 2198 Contra Costa Mount Diablo. Alamo Canyon: above Wilsons' barn Comment
  CAS-BOT-BC267446  Eriogonum truncatum M. K. Curran 1886-5-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC267872  Eriogonum umbellatum var. bahiiforme A. D. E. Elmer 1903-7-1 4547 Contra Costa Mount Diablo Comment
  UC691562  Eriogonum umbellatum var. bahiiforme Mary L. Bowerman 1930-6-14 328 Contra Costa summit Mount Diablo Mount Diablo Comment
  CAS-BOT-BC262351  Eriogonum vimineum Alice Eastwood 1915-5-30 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC300924  Eriophyllum jepsonii Mary L. Bowerman 1935-5-30 3087 Contra Costa Mount Diablo. Eagle Point ridge 304 Comment
  CAS-BOT-BC300926  Eriophyllum jepsonii John Thomas Howell 1950-7-5 26636 Contra Costa Above Nortonville Comment
  UC196644  Eriophyllum jepsonii J. W. Congdon 1896-5-29 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC300983  Eriophyllum lanatum var. achilleoides E. E. Stanford 1930-5-24 1513 Contra Costa Marsh Creek Canyon Comment
  CAS-BOT-BC300969  Eriophyllum lanatum var. achilleoides John Thomas Howell 1931-5-12 6485 A Contra Costa Marsh Creek Road ne. of Mt. Diablo Comment
  CAS-BOT-BC300979  Eriophyllum lanatum var. achilleoides L. Constance 1933-6-25 E 96 Contra Costa Southwest slopes of Mount Diablo, 1/2-way up Comment
  POM161398  Eriophyllum lanatum var. achilleoides H. E. McMinn 1922-6-30 98 Contra Costa Roadside on Mt. Diablo Comment
  UC134928  Eriophyllum lanatum var. achilleoides Katharine Brandegee 1907-6-16 Contra Costa hills near Antioch Comment
  UC1428723  Eriophyllum staechadifolium W. J. Ferlatte with L. M. Moe 1970-4-27 1251 Contra Costa San Francisco Bay, Red Rock Island Comment
  UC1795733  Eriophyllum staechadifolium Barbara Ertter, Brad Olson 1994-5-7 12759 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  HSC8469  Erodium botrys Greg Bos 1963-3-15 40 Contra Costa Albany Hill, Albany 9 Comment
  UC606753  Erodium cicutarium Edward Lee 1936-4-19 1994 Contra Costa Red Rock San Francisco Bay 54 Comment
  SEINET5604448 Image available Erodium cicutarium Rachel Van Noord 1998-1 4 Contra Costa Dinosaur Hill Park, Pleasant Hill, CA N 37* 56.149' W 122* 05.391 Comment
  UC1130310  Erodium macrophyllum C. M. Belshaw 1936-5-15 2126 Contra Costa 1.75 mi ne Somerville; Mt. Diablo Quad. 152 Comment
  UC17071  Erodium macrophyllum W. H. Brewer 1862-5-10 1067 Contra Costa near Kirker Pass Comment
  CHSC21643  Erodium moschatum Willis Ball 1975-3-2 463 Contra Costa Contra Loma Regional Park. In area #1. In island in middle of main parking lot on s side of lake. 38 Comment
  JEPS15973 Image available Eryngium aristulatum var. aristulatum W. L. Jepson 1895-9-7 14275 Contra Costa Orinda Park; ; Orinda Park, Contra Costa Co. 121 Comment
  UC692373  Eryngium aristulatum var. aristulatum Mary L. Bowerman 1935-5-22 3054 Contra Costa saddle w. Twin Peaks (just s. of crest, Mt. Diablo); Mt. Diablo 441 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
  RSA136734  Eryngium aristulatum var. aristulatum J. T. Howell 1955-8-24 30899 Contra Costa Near Diablo Country Club Comment
  CDA38328  Eryngium armatum D. G. Kelch 2007-4-1 7 .108 Contra Costa Carquinez Strait; Pt. Pinole. Comment
  JEPS121011  Eryngium armatum D. G. Kelch 2007-4-1 07 .108 Contra Costa Pt. Pinole 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
  JEPS111619  Eryngium jepsonii D. G. Kelch 2004-7-9 04 .297 Contra Costa Crockett - Carquinez Scenic Drive Carq. Scenic Dr. Just west of Pt. Costa 60 Comment
  CAS-BOT-BC124232  Eryngium jepsonii Willis Linn Jepson 1895-9-1 s.n. Contra Costa Orinda Park Comment
  CDA9196  Eryngium jepsonii Christopher Thayer 2000-5-26 s.n. Contra Costa On moist, grassy slope just south of boundary of Rossmoor. Lucas Ranch, Lafayette. 0 Comment
  UC1190973  Eryngium vaseyi Lincoln Constance, Reino Alava and Rimo Bacigalupi 1958-6-6 3661 Contra Costa 3 mi. s.e. Byron; San Joaquin Valley 10 Comment
  UC1487327  Eryngium vaseyi Yusuf Sheikh 1974-5-5 587 B Contra Costa 2.1 mi. s.e. of Byron Post sign on rd. J4 Byron (3.1 mi. s.e. of intersection with Camino Diablo) Comment
  CAS-BOT-BC40769  Erysimum capitatum G. B. Rossbach; R. P. Rossbach 1938-6-5 858 b Contra Costa Along tidal estuary of San Joaquin River just east of Antioch. Comment
  CAS-BOT-BC40772  Erysimum capitatum Robert F. Hoover 1935-3-10 305 Contra Costa Antioch. 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
  RSA39907  Erysimum capitatum var. angustatum P. A. Munz 1947-10-8 12205 Contra Costa Antioch 8 Comment
  RSA298536  Erysimum capitatum var. capitatum Robert A. Norris, John L. Inase 1981-5-10 4158 Contra Costa Near North Gate Road, Mt Diablo. 930 Comment
  UC2046327  Erythranthe nasuta Barbara Ertter with Alan Prather 2003-6-7 18210 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, Coyote Trail. Comment
  CAS-BOT-BC402983  Eschscholzia californica A. A. Heller 1938-4-9 15018 Contra Costa 3 miles southwest of Antioch Comment
  CAS-BOT-BC402987  Eschscholzia californica James McMurphy 1909-5-21 s.n. Contra Costa Antioch Comment
  JEPS79015  Eschscholzia californica Edward Lee with Annetta Carter 1935-8-17 1632 Contra Costa Antioch Sand-dunes Comment
  JEPS99964  Eschscholzia californica G. Smick 2003-4-8 GAS 133 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC692191  Eschscholzia californica Mary L. Bowerman 1930-6-28 386 Contra Costa near road above junction; Mount Diablo Comment
  UC1789218  Eucalyptus tereticornis Barbara Ertter 1993-11-13 12318 Contra Costa Sibley Volcanic Regional Preserve in Oakland Hills S of Orinda, pine & eucalypt forest on south side of Round Top, ca 1500 ft.; locally established tree with peeling bark. Comment
  UC35514  Eucrypta chrysanthemifolia var. chrysanthemifolia Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  CDA18900  Euphorbia oblongata V. Guise 2000-5-22 PDR 031724 Contra Costa East side of Bollinger Canyon Rd., San Ramon. 0 Comment
  JEPS111951  Euphorbia oblongata D. G. Kelch 2004-6-6 04 .224 Contra Costa Martinez - Train Station Downtown Martinez. Alhambra Creek near bay and railroad Station 2 Comment
  CDA4843  Euphorbia oblongata T. C. Fuller 1961-7-6 6585 Contra Costa Carquinez Strait; Alhambra Valley, Highway 4, 0.5 mile west of Glen Frazier Station, ca. 4 miles west of Martinez. 0 Comment
  HSC83431  Euphorbia oblongata William E. Davis 1981-4-23 Contra Costa Martinez, along Franklin Creek in John Muir National Historic Site. Comment
  UC2032808  Euphorbia peplus Doran, Andrew Scott 2012-3-20 678 Contra Costa Brooks island loading dock, North side of island. 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
  JEPS111697  Eurybia radulina D. G. Kelch 2004-4-25 04 .116 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Hill Southwest of large cottonwood. West of Martinez at gated end of Scenic Dr 50 Comment
  CAS-BOT-BC310642  Euthamia occidentalis Virginia I. Dains; Walter Knight 1986-8-8 5468 Contra Costa Jct Rock S1 & Werner Cut Comment
  CDA2178  Festuca arundinacea T. C. Fuller 1961-9-13 7002 Contra Costa Hwy J4, ca. 4 miles southeast of Byron. 0 Comment
  UC2028589  Festuca arundinacea Barbara Ertter with Mary Bowerman 1996-11-1 15399 Contra Costa North base of Mount Diablo, near Donner Canyon trailhead at end of Regency Drive Comment
  UC692287  Festuca californica Mary L. Bowerman 1931-5-2 788 Contra Costa n end Eagle Point ridge; Mount Diablo Comment
  UC692366  Festuca californica Mary L. Bowerman 1931-4-25 757 Contra Costa Mount Diablo, near junction of s and w roads Mount Diablo Comment
  CDA5267  Filago californica D. G. Kelch, A. G. Murdock 2005-5-13 5 .278 Contra Costa Carquinez Strait Region; Martinez - West: Ozol Rock and Scenic Drive. Comment
  UCD127505  Foeniculum vulgare P. B. Kennedy 1914-7-1 s.n. Contra Costa Richmond. Comment
  SEINET3562429 Image available Forestiera neomexicana Lewis S. Rose 1932-5-26 32117 Contra Costa Nortonville. Comment
  RSA739727  Frankenia salina John Dittes 2006-10-26 1413 Contra Costa San Joaquin Valley (foothills near NW edge) 2 air mile S of Marsh Creek Reservoir Gauging Station, 1.6 air mile SW of intersection of Camino Diablo and Vasco Road, Contra Costa Water District's Los Vaqueros Watershed Mitigation. 67 Comment
  CAS-BOT-BC223393  Fraxinus dipetala Mary L. Bowerman 1935-6-1 3103 Contra Costa Mount Diablo. First small ridge east of Mitchell-Pine divide 1005 Comment
  CAS-BOT-BC136074  Fritillaria affinis Lewis S. Rose 1934-3-7 34047 Contra Costa Mt. Diablo Comment
  JEPS62309  Fritillaria affinis H. P. Chandler 1900-3-23 577 Contra Costa Briones Valley; Region of Mount Diablo, Briones Valley Comment
Read comments
Aug 23 2008
  UC692003  Fritillaria affinis Mary L. Bowerman 1931-3-8 562 Contra Costa Mount Diablo, near mouth of Mitchell Canyon Mitchell Canyon; Mount Diablo, Mitchell Canyon Comment
  RSA289960  Fritillaria affinis W. L. Jepson 1918-6-3 7573 Contra Costa Donner Canyon, Mount Diablo 534 Comment
  JEPS61883  Fritillaria agrestis Miss Linda Gehringer 1915-3-27 Contra Costa east side of Mount Diablo Mount Diablo Comment
  JEPS55706  Fritillaria liliacea W. Hirano 1954-3-11 Contra Costa opposite Mira Vista Country Club (at Arlington Avenue); Arlington Avenue Comment
  SEINET196591  Fritillaria liliacea Robert F. Hoover 1938-3-8 2819 Contra Costa Berkeley Country Club. Comment
  JEPS113074  Fumaria capreolata Barbara Ertter 1999-3-21 16486 Contra Costa Miller Knox Regional Park near Point Richmond, edge of old excavation into rock (southeast of Richmond Ramblers building). Comment
  RSA722148  Fumaria capreolata Barbara Ertter 1999-3-21 16486 Contra Costa Miller Knox Regional Park near Point Richmond, edge of old excavation into rock (southeast of Richmond Ramblers building) Comment
  SEINET11170982  Galium andrewsii M. S. Baker 1904-6-24 s.n. Contra Costa Near Summit of Mt. Diablo, Mitchel Canyon Trail Comment
  JEPS52812  Galium andrewsii subsp. gatense Lauramay T. Dempster 1965-5-2 4090 Contra Costa above Bridlepath Campground; Mount Diablo 701 Comment
  CDA42131  Galium aparine A. G. Murdock 2004-3-19 223 Contra Costa Carquinez Strait Region; Luzon. Sycamore Avenue just east of Rodeo/Hercules where train crosses Highway 4 (Luzon). Comment
  UC691536  Galium aparine Mary L. Bowerman 1932-4-27 1374 Contra Costa canyon w Riggs Canyon; Mount Diablo, Oyster Ridge 289 Comment
  JEPS14516  Galium californicum subsp. californicum L. T. Dempster 1956-6-1 1007 Contra Costa 15 El Toyonal Orinda Comment
  UCR263548  Galium californicum subsp. californicum Barbara Ertter, Susan D'Alcamo 1998-6-12 16202 Contra Costa San Francisco Bay Region, along Curry Canyon Road on south side of Mount Diablo, halfway between Knobcone Point Road and Sheepherder Springs Trail Comment
  JEPS112105  Galium murale D. G. Kelch 2003-4-3 03 .345 Contra Costa Cummings Skyway South of Cummings Skyway and Crockett Blvd 134 Comment
  UC2028273  Galium murale Barbara Ertter 1999-6-12 16703 Contra Costa Black Hawk Ridge Road between Knobcone Point Road and NE fork of Sycamore Creek, South side of Mount Diablo. Comment
  CHSC117389  Galium parisiense Barbara Ertter; Susan D'Alcamo 1998-6-12 16168 Contra Costa North Peak Trail from Devil's Elbow on SE side of Mount Diablo summit, steep rocky S-facing bowl. 1036 Comment
  RSA0029676  Galium parisiense Barbara Ertter, Susan D'Alcamo 1998-6-12 16168 Contra Costa North Peak Trail from Devil's Elbow on SE side of Mount Diablo summit, steep rocky S-facing bowl. 1037 Comment
  UC2027970  Galium parisiense Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15660 Contra Costa North base of Mount Diablo, lower end of Mitchell Canyon. Comment
  UC2028293  Galium parisiense Barbara Ertter with Dan Norris 1998-6-18 16221 Contra Costa West of Rock City area on south side of Mount Diablo, saddle on W Fossil Ridge Trail. 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-BC304345  Gamochaeta pensylvanica Gordon H. True 1975-6-4 7869 Contra Costa Tilden Regional Park Botanic Garden, Tilden Regional Park, Wildcat Canyon, Berkeley Comment
  UC672198  Gamochaeta ustulata H. L. Mason 1928-4-12 4302 Contra Costa Richmond waterfront Comment
  UC634816  Garrya elliptica H. L. Mason 1925-9-12 2223 Contra Costa head of San Leandro Creek Canyon; Oakland Hills 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-BC169943  Garrya fremontii H. E. McMinn 170 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC169945  Garrya fremontii H. E. McMinn 1922-6-2 88 Contra Costa Summit of Mt. Diablo Comment
  CAS-BOT-BC169947  Garrya fremontii Mary L. Bowerman 1930-6-7 s.n. Contra Costa Meridian Peak Summit Comment
  SEINET10963567  Gastridium phleoides Virginia E. Long 1933-6-14 Long 224 a Contra Costa Mt. Diablo. Grassy ridge of Curry Cave trail. 366 Comment
  UC692392  Gastridium ventricosum Mary L. Bowerman 1933-5-25 2190 Contra Costa Oyster Ridge, w end of s face Mount Diablo; , Oyster Ridge, w end of s face Comment
  RSA691922  Gaura parviflora Barbara Ertter 1991-9-22 10827 Contra Costa Point Isabel Regional Shoreline in southwest El Cerrito, along abandoned railroad right-of-way, near asphalt heap Comment
  JEPS125933  Gazania linearis D. W. Taylor 2001-3-21 17615 Contra Costa Blackhawk subdivision; growing near base of PG&E transmission tower 16/64 Comment
  JEPS99997  Genista monspessulana G. Smick 2003-5-30 GAS 210 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1607581  Genista monspessulana Barbara Ertter 1991-5-12 9816 Contra Costa sw corner El Cerrito (Point Isabel Regional Shoreline, on San Francisco Bay); San Francisco Bay Comment
  CHSC116654  Geranium dissectum Lowell Ahart; Josephine Guardino 2016-4-19 20776 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the east side of the gravel road, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  UCD103337  Geranium dissectum Morris Halperin 1929-4-21 s.n. Contra Costa Moraga Valley. 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
  JEPS108360  Gilia achilleifolia subsp. achilleifolia David Gowen 2005-4-11 230 Contra Costa Mt. Diablo State Park. Below Devils Elbow in the upper part of Rhine Canyon drainage. Comment
  UC963984  Gilia achilleifolia subsp. multicaulis R. F. Hoover 1941-4-11 4831 Contra Costa Marsh Creek Canyon Comment
  RSA566429  Gilia capitata subsp. staminea Peter L. Morrell, Donna S. Krause 1993-5-16 239 Contra Costa Contra Costa County, along sides of raod 100m W of 1701 Wilbur Ave, Antioch, betw Southern Pacific tracks and San Joaquin River (0.5 miles W of Hwy 4/160). Comment
  UC2062648  Gilia capitata subsp. staminea Barbara Ertter with Dan Norris 2001-4-8 17596 Contra Costa Lime Ridge Open Space east of Walnut Creek. Comment
  UC2062650  Gilia capitata subsp. staminea Barbara Ertter 2001-3-18 17566 Contra Costa Shell Ridge Open Space SW of Walnut Creek, west end of Ridge Top Trail. Comment
  JEPS85758  Gilia clivorum Roy E. Buck 1989-3-11 1102 Contra Costa 9 air km se Walnut Creek (ca 2.0 air km w of Moses Rock Spring, sw-facing slope on n side of North Gate Rd, 0.3 road mi se of park boundary); Mt. Diablo State Park 207 Comment
  POM223334  Gilia clivorum L. S. Rose 1935-5-16 351 75 Contra Costa Mt. Diablo. Comment
  UC909004  Gilia clivorum Herbert L. Mason 1928-4-15 4358 Contra Costa top Moraga Ridge; top of Moraga Ridge Comment
  UC963965  Gilia clivorum R. F. Hoover 1938-3-25 2895 Contra Costa Markley Canyon Comment
  UCR178962  Gilia clivorum Peter L. Morrell, N. Takebayashi 1995-5-21 472 Contra Costa Central Coast, S of Clayton in Mitchell Canyon, above the banks of Mitchell Creek and beneath Eagle Peak 400 Comment
  SEINET3696190 Image available Gilia tricolor Lewis S. Rose 1932-3-15 3283 Contra Costa Byron. Comment
  SEINET12278815  Gilia tricolor J. G. Lemmon 1878-1 s.n. Contra Costa side of Mt. Diablo Comment
  UC691596  Gilia tricolor subsp. tricolor Mary L. Bowerman 1933-3-18 1756 Contra Costa Meridian Peak w Rhine Canyon (Mount Diablo); , Meridian Peak w of Rhine Canyon Comment
  CAS-BOT-BC266488  Githopsis diffusa R. Bacigalupi 1927-5-13 1569 Contra Costa Along Danville - Mount Diablo Road near Garden of the Jungle Gods 518 Comment
  JEPS33662  Githopsis diffusa subsp. robusta Wayne Roderick 1963-5-30 Contra Costa 2.7 mi e Morgan Territory road (or 0.3 mi e of Marsh Creek Stables, on Marsh Creek Rd) 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
  SEINET10464620  Githopsis specularioides Bowerman 1935-5-18 BOWERMAN 3034 Contra Costa Meridian Peak north of the summit parking area 1067 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
  JEPS112378  Glycyrrhiza lepidota Dean G. Kelch and Andrew G. Murdock 2003-6-2 84 Contra Costa Martinez; County: Contra Costa; Near waterfront west end entrance. Comment
  UC692667  Glycyrrhiza lepidota Mary L. Bowerman 1931-5-13 842 Contra Costa canyon floor 1 mi above sulphur spring; Mount Diablo, Pine Canyon Comment
  CDA35615  Gnaphalium californicum I. Godwyn 2011-5-12 PDR# 1649778 Contra Costa Richmond; Wildcat Canyon Regional Park, near McBryde Ave. 0 Comment
  RSA666773  Gnaphalium palustre Barbara Ertter, Brad Olson 1991-9-28 10835 Contra Costa San Pablo Reservoir between Orinda and El Sobrante. 91 Comment
  SEINET3150085  Godetia purpurea L. S. Rose 1938-5-8 38224 Contra Costa Antioch 15 Comment
  SEINET10581007  Gomphocarpus fruticosus Walter Knight, Irja Knight 1977-8-21 Knight 3158 Contra Costa Martinez Regional Shoreline, Granger's Warf Park, Martinez, N end of Berrelessa Street Comment
  RSA739723  Grindelia camporum var. camporum John Dittes 2006-10-26 1416 Contra Costa San Joaquin Valley (foothills near NW edge) 2 air mile S of Marsh Creek Reservoir Gauging Station, 1.6 air mile SW of intersection of Camino Diablo and Vasco Road, Contra Costa Water District's Los Vaqueros Watershed Mitigation. 67 Comment
  CAS-BOT-BC305219  Grindelia hirsutula Alice Eastwood 1915-6-21 4730 Contra Costa San Leandro Comment
  CAS-BOT-BC305226  Grindelia hirsutula Lewis S. Rose 1930-7-22 s.n. Contra Costa Antioch Bridge Comment
  JEPS20303  Grindelia hirsutula Lewis S. Rose 1954-11-23 54136 Contra Costa 1 mi s Pittsburg 15 Comment
  UC1042334  Grindelia hirsutula Lewis S. Rose 1952-11-26 52020 Contra Costa Pittsburg 3 Comment
  UC1606421  Grindelia hirsutula Barbara Ertter 1993-5-9 11719 Contra Costa near Brickyard Landing (bluffs at end of Garan Road, sw corner of Point Richmond); Point Richmond Comment
  UC1618424  Grindelia hirsutula Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10872 Contra Costa just w of Antioch Marina (Dow Wetlands Preserve); Dow Wetlands Preserve Comment
  CAS-BOT-BC305224  Grindelia hirsutula John Thomas Howell 1930-9-28 5495 Contra Costa Liberty School on Marsh Creek Road Comment
  CAS-BOT-BC305241  Grindelia hirsutula John Thomas Howell 1929-9-21 4396 Contra Costa Marsh Creek Road 3.5 miles sw. of Brentwood Comment
  SEINET10724143  Grindelia hirsutula John T. Middleton Middleton s.n. Contra Costa Seaside, Richmond. Comment
  UCD35139  Grindelia robusta Beecher Crampton 1950-6-20 594 Contra Costa Richmond Comment
  CDA1503  Grindelia stricta D. G. Kelch 1996-10-17 s.n. Contra Costa Carquinez Strait; Pt Edith Marsh Comment
  JEPS20871  Guillenia flavescens J. Burtt Davy 1895-4-7 969 Contra Costa Antioch Comment
  UC117325  Guillenia flavescens T. S. Brandegee May 1892 Contra Costa Antioch Comment
  UC691155  Guillenia flavescens Mary L. Bowerman 1935-6-8 3122 Contra Costa 2 mi from West road (= North Rd.) entrance (w of chaparral); Mount Diablo Comment
  POM300596  Guillenia flavescens Mary L. Bowerman 1935-4-22 2879 Contra Costa North Road 2 miles from North Gate, just W of chaparral. 213 Comment
  UC1601407  Guillenia lasiophylla Katharine Brandegee 1907-5-3 Contra Costa near Antioch; Judsonville Comment
  UC691110  Guillenia lasiophylla Mary L. Bowerman 1932-3-23 1131 Contra Costa ridge e Donner Canyon; Mount Diablo 274 Comment
  CAS-BOT-BC304576  Gutierrezia californica Lewis S. Rose 1932-10-2 32655 Contra Costa Marsh Creek Road Comment
  RSA299550  Gutierrezia californica Edward Lee, Annetta Carter 1935-8-17 1622 Contra Costa Antioch Comment
  UC1076516  Gutierrezia californica H. L. Mason 1929-9-21 5435 Contra Costa 3 mi above Clayton (Marsh Creek road) 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
  CDA5197  Hedera helix D. G. Kelch, A. G. Murdock 2005-5-23 5 .373 Contra Costa Carquinez Strait Region; Crockett - Crolona Heights. 6th Street at Lillian Street, Crockett. Comment
  UC552471  Helenium bigelovii C. L. Swenson 1936-7-9 Contra Costa river sloughs near Antioch; San Joaquin River Comment
  JEPS111680  Helenium puberulum D. G. Kelch 2003-8-13 03 .134 Contra Costa Pinole Creek 68 Comment
  CAS-BOT-BC305319  Helianthella castanea Rimo Bacigalupi 1926-4-30 1351 Contra Costa Summit of Mt. Diablo Comment
  CAS-BOT-BC305320  Helianthella castanea John Thomas Howell 1940-4-21 15398 Contra Costa Pine Canyon, Mt. Diablo Comment
  JEPS21041  Helianthella castanea R. F. Hoover 1939-4-13 4014 Contra Costa head of west branch Markley Canyon Comment
  JEPS21042  Helianthella castanea W. L. Jepson 1922-5-23 9654 Contra Costa Mt. Diablo; summit Comment
  UC194925  Helianthella castanea H. M. Hall 1916-5-31 10137 c Contra Costa flat on s side Mt. Diablo 1066 Comment
  UC2013032  Helianthella castanea Barbara Ertter with Travis Columbus 1990-6-10 9107 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill; E-facing steep hillside above junction of Spengler and Blue Oaks trails. Comment
  UC761942  Helianthella castanea R. F. Hoover 1939-4-13 4014 Contra Costa head (west branch) Markeley Canyon Comment
  CAS-BOT-BC305324  Helianthella castanea W. C. McCalla 1925-4-22 s.n. Contra Costa Leona Heights near Oakland Comment
  CAS-BOT-BC223919  Helianthemum scoparium W. W. Carruth 1901-5-1 s.n. Contra Costa Redwood Canon [Canyon], Chaparral Ridge Comment
  UC691733  Helianthus annuus Mary L. Bowerman 1936-9-17 3547 Contra Costa road to substation nw of Mount Zion (roadside, w side, between substation and Marsh Creek Road); Mount Diablo Comment
  UC1618418  Helianthus californicus Barbara Ertter, Diane Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10719 Contra Costa west-most point opposite Pittsburg Marina (Browns Island n of Pittsburg near confluence of Sacramento and San Joaquin Rivers); Browns Island Comment
  UC1795663  Helianthus californicus Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14628 Contra Costa Little Pine Creek at northwest foot of Mt. Diablo, along trail connecting North Gate Road to Castle Rock Road, Diablo Foothills Regional Park; along stream above stable, riparian vegetation. 91 Comment
  UC697184  Helianthus gracilentus Mary L. Bowerman 1935-5-22 3055 Contra Costa Saddle w of Twin Peaks ((Eagle Point Ridge)); Mount Diablo Comment
  POM301045  Helianthus gracilentus Mary L. Bowerman 1935-5-22 3055 Contra Costa Mt. Diablo: Saddle west of Twin Peaks (Eagle Point ridge). Chapparal from saddle up to Twin Peaks (southwest face) and downwards into Uncle Sam Canyon. Comment
  UC2028257  Helianthus gracilentus Barbara Ertter 1999-6-12 16722 Contra Costa Knobcone Point Road on south side of Mount Diablo, burned chamissal at head of NE fork of Sycamore Creek. Comment
  UCD151071  Heliotropium curassavicum var. oculatum James A. Neilson Jr. 1972-11-2 3610 Contra Costa Contra Costa County. Walnut Creek drainage. (Elevation estimated using Google Earth by label maker.) 1 Comment
  UCD32429  Helminthotheca echioides Beecher Crampton 1950-6-16 593 Contra Costa Richmond. Comment
  CAS-BOT-BC305873  Helminthotheca echioides R. E. Frenkel 1964-6-20 593 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  CAS-BOT-BC305875  Helminthotheca echioides Vincent Jones 1921-8-29 s.n. Contra Costa Orwood Comment
  CDA33542  Hemizonia congesta subsp. luzulifolia D. G. Kelch 2010-11-28 10 .449 Contra Costa El Sobrante. Hill above the junction of San Pablo Dam Rd and El Portal Dr (Quail Hill). Comment
  CDA7025  Hemizonia congesta subsp. luzulifolia D. G. Kelch, A. G. Murdock 2004-7-9 4 .294 Contra Costa Carquinez Strait Region; Crockett - Carquinez Scenic Drive. East of Crockett West of Bull Valley SA. Comment
  CDA7053  Hemizonia congesta subsp. luzulifolia D. G. Kelch 2006-7-14 6 .333 Contra Costa Between Rte 4 and Carbon Rd. E Rodeo. Comment
  JEPS12596  Hemizonia congesta subsp. luzulifolia R. F. Hoover 1939-4-25 4061 Contra Costa Richmond Hills Comment
  JEPS12597  Hemizonia congesta subsp. luzulifolia R. F. Hoover 1937-9-2 2709 Contra Costa Walnut Creek Comment
  UC570418  Hemizonia congesta subsp. luzulifolia Chas. M. Belshaw 1936-10-26 2722 Contra Costa fallow fields near Walnut Creek; Coast Ranges Comment
  UC691557  Hemizonia congesta subsp. luzulifolia Mary L. Bowerman 1933-9-9 2426 Contra Costa se-facing slope above Curry Canyon (onway to Blackberry Spring); Mount Diablo Comment
  UC697174  Hemizonia congesta subsp. luzulifolia Mary L. Bowerman 1933-5-25 2197 Contra Costa s-facing slope between forks of branch of Alamo Creek on s side main ridge; Mount Diablo, Oyster Ridge Comment
  UC762663  Hemizonia congesta subsp. luzulifolia R. F. Hoover 1937-9-2 2709 Contra Costa Walnut Creek Comment
  CAS-BOT-BC314862  Hemizonia congesta subsp. luzulifolia Mary L. Bowerman 1938-9-11 3713 Contra Costa Curry Canyon where Sulphur Spring Canyon joins it, Mount Diablo 259 Comment
  CAS-BOT-BC314872  Hemizonia congesta subsp. luzulifolia D. E. Breedlove 1969-10-18 16707 Contra Costa Along the roadbank on Deer Hill Road near the junction with Happy Valley Road, Lafayette Comment
  UC2029028  Hemizonia congesta subsp. luzulifolia Barbara Ertter 2002-5-11 17833 Contra Costa southwest base of Mount Diablo, lower Dan Cook Canyon, Summit Trail paralleling park boundary. Comment
  UC217362  Hemizonia congesta subsp. luzulifolia H. M. Hall 1917-5-27 10314 Contra Costa Fish Ranch San Francisco Bay Region, Berkeley Hills Comment
  SEINET5782065 Image available Hemizonia fitchii L. S. Rose 1941-10-13 41464 Contra Costa 1 mi E of Walnut Creek Comment
  RSA722228  Hemizonia kelloggii Barbara Ertter, Chris Thayer 1994-5-19 12783 Contra Costa Opposite E end of Antioch Dunes, S side of Wilber Avenue N of railroad tracks E of Antioch. Comment
  POM194887  Hemizonia lutescens H. M. Hall 1914-8-23 9860 Contra Costa San Pablo 9 Comment
  RSA81495  Hemizonia luzulifolia subsp. rudis James I. McMurphy 1909-9-24 s.n. Contra Costa 1 mile N of San Ramon. Comment
  SEINET7883479 Image available Hemizonia obconica Lewis S. Rose 1938-1 38309 Contra Costa Marsh Creek, 8 mi. w. of Byron 61 Comment
  CDA15242  Hemizonia pungens G. F. Hrusa, D. Crowe 1998-5-8 14373 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Comment
  UCR184664  Hemizonia pungens subsp. pungens Dean Kelch 2005-11-23 06 .507 Contra Costa Point Molate 5 Comment
  UC901874  Heracleum lanatum L. Constance 1950-6-25 3326 Contra Costa s. rim Wildcat Canyon (Tilden Park); , Tilden Park 365 Comment
  UC697202  Hesperevax sparsiflora var. sparsiflora Mary L. Bowerman 1931-4-11 688 Contra Costa Pine Canyon; Mount Diablo 121 Comment
  UC88275  Hesperevax sparsiflora var. sparsiflora M. K. Curran May 1886 Contra Costa Antioch Comment
  UC692061  Hesperocnide tenella Mary L. Bowerman 1931-4-18 717 Contra Costa Sycamore Canyon Mount Diablo; , Sycamore Canyon Comment
  CAS-BOT-BC167426  Hesperolinon breweri A. D. E. Elmer 1903-7-1 4545 Contra Costa Mount Diablo Comment
  CAS-BOT-BC167441  Hesperolinon breweri Mary L. Bowerman 1930-6-22 356 Contra Costa Mitchell Canyon. Mt Diable Comment
  UC692702  Hesperolinon breweri Mary L. Bowerman 1930-6-22 356 Contra Costa Mitchell Canyon Mount Diablo Comment
  UC762273  Hesperolinon breweri R. F. Hoover 1939-5-20 4106 Contra Costa head Markley Canyon Comment
  UC1058216  Hesperolinon breweri W. H. Brewer May 29 1862-Jan 1 1900 1181 Contra Costa Camp 71 Mount Diablo Range, Marsh's Ranch Comment
  UC692665  Hesperolinon californicum Mary L. Bowerman 1933-6-14 2279 Contra Costa Inner Black Hills w 1970; Mount Diablo Comment
  UC194136  Hesperomecon linearis Edward Lee Greene 1887-4-15 Contra Costa Antioch Comment
  JEPS75475  Heteromeles arbutifolia P. F. Yorks 1975-7-18 479 Contra Costa ca 1.5 km s Bear Creek Rd on Hampton Rd in Hampton Road Natural Preserve (n of Briones Reservoir) 175 Comment
  SEINET3840819  Heteromeles arbutifolia Unknown 2006-6-23 6 .322C Contra Costa West Valona, West of Zampa Bridge above San Pablo avenue, along the small stream draining north into the Western end of the Carquinez Strait 91 Comment
  JEPS111693  Heterotheca grandiflora D. G. Kelch 2004-4-3 04 .52 Contra Costa Martinez - Vine Hill West of 680. North of highway 4. 44 Comment
  CAS-BOT-BC325836  Holocarpha heermannii Elsie M. Zeile 1921-11-19 s.n. Contra Costa Mt. Diablo Comment
  CDA7978  Holocarpha heermannii A. G. Murdock, D. G. Kelch 2002-7-2 67 Contra Costa Carquinez Strait Region; Mt. Wanda - Martinez. Crest of Mt. Wanda on north side of main fire road. Comment
  UC1619971  Holocarpha heermannii Barbara Ertter 1990-9-10 9641 Contra Costa Briones Hills s of Martinez (throughout Briones Regional Park); Briones Regional Park, Briones Hills Comment
  CAS-BOT-BC325834  Holocarpha heermannii Lewis S. Rose 1932-10-2 32667 Contra Costa Walnut Creek Comment
  UC2029014  Holocarpha heermannii Barbara Ertter 1999-8-21 16792 Contra Costa Deer Flat Trail south of Murchio Gap, NW side of Mount Diablo. Comment
  CAS-BOT-BC320226  Holocarpha macradenia David J. Powers 1974-10-6 1001 Contra Costa 100-400 feet east of highway 80, and 100-300 yards south of Appian Way, Pinole Comment
  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-BC320241  Holocarpha obconica Margi Oard 1988-10-9 s.n. Contra Costa Ca. 2 miles east of junction with Deer Valley Road along north side of Marsh Creek Road Comment
  POM298273  Holocarpha obconica subsp. autumnalis D. D. Keck, Jens Clausen 1933-10-27 2566 Contra Costa Vasco Road at junction with Byron Road. Comment
  CAS-BOT-BC320324  Holocarpha virgata L. S. Rose 1941-10-16 41467 Contra Costa 2 miles west of Byron 33 Comment
  CAS-BOT-BC320326  Holocarpha virgata David D. Keck 1933-11-2 2620 Contra Costa Horse Valley between Lone Tree Way and Marsh Creek Road, 6 miles from Antioch Comment
  UCD80964  Holocarpha virgata subsp. virgata Chuck Hughes 2008-7-10 51 Contra Costa Just north of Marsh Creek at County Jail on Marsh Creek Road. 181 Comment
  OBI16043  Holocarpha virgata subsp. virgata Robert F. Hoover 1969-8-29 11566 Contra Costa Raymond rd and Ames St, Livermore Valley Comment
  POM299471  Holocarpha virgata subsp. virgata L. S. Rose 1941-10-16 41467 Contra Costa 2 miles W of Byron. 33 Comment
  RSA449755  Holodiscus discolor Bonnie C. Templeton 1962-6-10 s.n. Contra Costa Mt Diablo. Comment
  UC12336  Holodiscus discolor Ivar Tidestrom 1895-6-1 Contra Costa Crockett Comment
  UC691114  Holodiscus discolor Mary L. Bowerman 1930-6-22 364 b Contra Costa Mount Diablo, Mitchell Canyon Mitchell Canyon; Mount Diablo, Mitchell Canyon Comment
  CAS-BOT-BC152591  Holodiscus discolor var. discolor Mary L. Bowerman 1935-6-15 3130 Contra Costa Ridge running north from Mitchell, Pine divide at 3100 foot level - Mount Diablo 838 Comment
  JEPS41058  Hordeum brachyantherum subsp. brachyantherum Rimo Bacigalupi and L. R. Heckard 1965-5-11 9087 Contra Costa sw Richmond (Brooks Island, San Francisco Bay); San Francisco Bay, Brooks Island Comment
  UC50661  Hordeum brachyantherum subsp. brachyantherum Jos. Burtt Davy 1899-4-19 7850 Contra Costa Las Trampas Ridge Comment
  CAS-BOT-BC284989  Hordeum depressum Ira L. Wiggins 1930-4-17 4578 Contra Costa 1/4 mi. S. of Byron Comment
  SEINET11678332  Hordeum depressum I. L. Wiggins 1930-1 4569 Contra Costa 2 mi E of Mountain House on road to Byron Comment
  JEPS100008  Hordeum marinum S. O'Neil 2003-5-8 SEO 27 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CHSC116612  Hordeum marinum subsp. gussoneanum Lowell Ahart; Josephine Guardino 2016-4-19 20800 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  JEPS70553  Hordeum marinum subsp. gussoneanum W. L. Jepson 1918-6-15 7674 Contra Costa Wild Cat Creek Canyon , Wild Cat Creek Canyon (Berkeley Hills) Comment
  UC55039  Hordeum marinum subsp. gussoneanum Jos. Burtt Davy 1898-4-8 4253 Contra Costa Danville Comment
  UC691196  Hordeum marinum subsp. gussoneanum Mary L. Bowerman 1933-5-11 2086 Contra Costa Inner Black Hills w of saddle , Inner Black Hills w of saddle (Mount Diablo) Comment
  UCD85917  Hordeum murinum subsp. glaucum A. A. Beetle 1942-3-22 2924 Contra Costa Taber Island. Small island off NW side of Brooks Island in San Francisco Bay. Comment
Read comments
Aug 20 2011
  POM301023  Hordeum murinum subsp. glaucum Mary L. Bowerman 1933-4-15 1851 Contra Costa Canyon south of Arroyo del Cerro 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
  UC691092  Horkelia californica subsp. dissita Mary L. Bowerman 1930-6-28 404 Contra Costa Mount Diablo, Lower Silver Spring Comment
  UC2062663  Horkelia californica subsp. frondosa Barbara Ertter 1990-5-19 8993 Contra Costa Lafayette Ridge of Briones Regional Park N of Lafayette; head of drainage on N side of ridge. Comment
  CAS-BOT-BC6224  Horkelia frondosa Edward Lee Greene 1889-5-1 s.n. Contra Costa Martinez Comment
  UC2028113  Hypochaeris glabra Barbara Ertter with Christopher Baysdorfer 1998-5-10 16108 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, roadside not far from Valley Vista trailhead. Comment
  UC1584689  Hypochaeris radicata Jerry Powell 1987-7-14 1506 Contra Costa Point Molate Beach Comment
  CAS-BOT-BC311407  Hypochaeris radicata Goodwin; Bellue 1932-5-6 s.n. Contra Costa Unspecified Comment
  UC1616163  Isoetes howellii Terry O'Brien 1997-3-19 3108 A Contra Costa Vasco Caves, approx. 1 mi W of North Vasco Road and 1 mi N of Alameda-Contra Costa county line; access from North Vasco Road ca. 3 mi N of county line 152 Comment
  UCD133394  Iva axillaris Collector Unknown Date Unknown s.n. Contra Costa Exact location unknown. 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
  JEPS111674  Jaumea carnosa D. G. Kelch 2003-8-13 03 .99 Contra Costa Martinez Marsh 0 Comment
  UC613042  Jaumea carnosa C. W. Sharsmith 1933-9-15 476 Contra Costa saline marshlands near Carquinez Straits; San Pablo Bay Comment
  SEINET1910273  Jaumea carnosa Barbara Ertter, Elizabeth Neese 1988-1 7975 Contra Costa Salicornia marsh @ of I-580 in El Cerrito, W side along Rydin Road N of Central Avenue. Comment
  CHSC93636  Juglans californica var. hindsii Paul Kirk; Joe Callizo 2001-10-8 9 Contra Costa City of Lafayette Community Park, W side of Las Trampas Creek, 1 m E of backyard property line of home at 615 Burton Rd. 119 Comment
  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
  JEPS8459  Juglans californica var. hindsii Rimo Bacigalupi with C. Ritchie Bell 1951-4-13 3253 Contra Costa along creek 1 1/4 mi ne St. Mary's College; Las Trampas Creek 167 Comment
  UC1197942  Juglans californica var. hindsii Joseph P. Tracy 1934-4-30 13186 Contra Costa near Lafayette; North Coast Ranges 152 Comment
  UC691984  Juncus ambiguus Mary L. Bowerman 1930-6-10 292 Contra Costa Mount Diablo, Mineral Spring Mineral Spring; Mount Diablo, Mineral Spring Comment
  UC2028428  Juncus articulatus Barbara Ertter 1996-9-19 15300 Contra Costa Antioch Marina, edge of bay in Dow Marsh lands Comment
  JEPS112439  Juncus balticus D. G. Kelch 2004-4-26 04 .134 Contra Costa Point Pinole Pt Pinole 3 Comment
  UC2028285  Juncus balticus Barbara Ertter 1998-6-20 16238 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Alkali Pond at Wiget Lane entrance. Comment
  UC2029189  Juncus balticus Barbara Ertter with Brad Olson et al. 2000-6-2 17308 Contra Costa Brushy Peal Regional Preserve NE of Livermore Comment
  UC2028372  Juncus bufonius var. bufonius Barbara Ertter 1998-6-20 16234 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo. Alkali Pond at Wiget Lane entrance. Comment
  JEPS111070  Juncus bufonius var. bufonius Lee Echols 2003-6-3 s.n. Contra Costa N of Lark Drive in central portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  RSA0029053  Juncus bufonius var. bufonius Barbara Ertter 1999-6-12 16716 Contra Costa West Branch Alamo Creek on south flank of Mount Diablo, along unofficial path running from north spur of Black Hawk Ridge Road to south spur off of Knob Cones Point Road (near powerline). 457 Comment
  UC2028264  Juncus bufonius var. bufonius Barbara Ertter 1999-6-12 16716 Contra Costa West Branch Alamo Creek on south flank of Mount Diablo, along unofficial path running from north spur of Black Hawk Ridge Road to south spur off of Knob Cone Point Road (near powerline). Comment
  JEPS127264  Juncus bufonius var. congestus Lowell Ahart, Josephine Guardino 2016-4-19 20786 Contra Costa 1.4 miles (air) northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest to Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  CDA39196  Juncus effusus var. pacificus H. R. Van Brocklin 1962-5-21 s.n. Contra Costa H. Van Brocklin prop., 1895 Almond Ave., Walnut Creek. 0 Comment
  UC691911  Juncus patens Mary L. Bowerman 1932-11-26 1680 Contra Costa above South Road (in sight of South Gate); Mount Diablo, South Gate Spring Comment
  JEPS112448  Juncus phaeocephalus var. paniculatus A. G. Murdock 2004-5-28 276 Contra Costa Refugio Valley 120 Comment
  UC2028371  Juncus phaeocephalus var. paniculatus Barbara Ertter 1998-6-20 16236 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Alkali Pond at Wiget Lane entrance, Comment
  UCD32427  Juncus phaeocephalus var. paniculatus Beecher Crampton 1950-6-10 590 Contra Costa 1 mile north of Richmond, along Santa Fe R.R. Comment
  JEPS112452  Juncus tenuis D. G. Kelch 2005-4-15 05 .134 Contra Costa Rodeo Creek East-West canyon feeding into Rodeo Creek 120 Comment
  UC521770  Juncus xiphioides Joseph Andorfer Ewan 1933-10-15 8019 Contra Costa sw slope Mt. Diablo Comment
  JEPS48238  Juniperus californica W. L. Jepson 1918-6-5 7617 Contra Costa North Peak, Mt. Diablo Mt. Diablo, North Peak 822 Comment
  UC1076380  Juniperus californica Herbert L. Mason 1923-11-12 850 Contra Costa middle slopes Mt. Diablo Comment
  UC1134276  Juniperus californica R. W. Lundh 1932-8-26 147 Contra Costa Laurel Dell Camp Mt. Diablo Mt. Diablo Quadrangle, Mt. Diablo 899 Comment
  UC486488  Juniperus californica Mrs. G. Earle Kelly 1932-7-20 Contra Costa Laurel Dell Mt. Diablo, Laurel Dell Comment
  UC521718  Juniperus californica Joseph Andorfer Ewan 1933-10-15 8038 Contra Costa sw slope Mt. Diablo 1066 Comment
  SEINET10531625  Juniperus californica Lewis S. Rose 1936-11-22 Rose 36781 Contra Costa Mt. Diablo. Dry slopes. 760 Comment
  CAS-BOT-BC235871  Keckiella corymbosa A. D. E. Elmer 1903-7-1 4956 Contra Costa Mt. Diablo Comment
  UCSB6170  Keckiella corymbosa Keator, Glenn 1959-7-1 Contra Costa 1/4 mile above Laurel camp on Mt. Diablo Comment
  JEPS100145  Kickxia elatine A. Langston 2003-7-24 AL 73 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  POM257060  Koeleria macrantha Virginia Long 1933-6-14 223 a Contra Costa Mt Diablo; On top of grassy ridge between Curry-Cave trail canyon and W. fork Comment
  UC691244  Koeleria macrantha Mary L. Bowerman 1935-5-16 2992 Contra Costa Russelman Park Mount Diablo (just s of the n boundary of section 25 (e of gate)); , Russelman Park Comment
  UC692414  Koeleria macrantha Mary L. Bowerman 1935-4-17 2841 Contra Costa West [= North Rd.] road 2 mi from entrance Mount Diablo; , West raod 2 mi from entrance 243 Comment
  CAS-BOT-BC273618  Koeleria pyramidata Walter Knight 1972-4-1 s.n. Contra Costa Mallard Slough between Port Chicago and Pittsburg Comment
  UC1050315  Kolkwitzia amabilis N. Floy Bracelin 1943-7-4 1584 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1050499  Kolkwitzia amabilis N. Floy Bracelin 1941-4-27 1227 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC340538  Lactuca serriola Walter Knight; Joanne Dean 1978-8-14 3165 Contra Costa Browns Island Comment
  CAS-BOT-BC340542  Lactuca serriola R. E. Frenkel 1964-2-5 353 Contra Costa On California Hwy. 21, Market Plaza Center, Alamo 79 Comment
  UC710613  Lactuca virosa John Thomas Howell 1943-8-22 19310 Contra Costa San Leandro Creek Canyon 243 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
  POM303721  Lactuca virosa J. T. Howell 1943-8-22 19310 Contra Costa Near head of San Leandro Creek Canyon. 244 Comment
  UC912601  Lagophylla ramosissima Herbert L. Mason 1929-9-21 5432 a Contra Costa Marsh Creek road 3 mi above Clayton (summit of grade) Comment
  CAS-BOT-BC341479  Lagophylla ramosissima R. Bacigalupi 1922-9-24 s.n. Contra Costa Fields between Clayton and Mitchell Canyon Comment
  RSA181411  Lasthenia californica James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  UC1795667  Lasthenia californica Barbara Ertter, Mary Bowerman et al. 1995-5-7 14060 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, small serpentine patch at road junction Comment
  JEPS10187  Lasthenia californica subsp. californica W. L. Jepson 1923-4-22 9874 Contra Costa open hillsides and slopes Mount Diablo Comment
  UC135346  Lasthenia californica subsp. californica C. F. Baker 1903-4-28 2829 Contra Costa Marsh Creek Mt. Diablo Comment
  CAS-BOT-BC324458  Lasthenia conjugens Barrett Anderson; Thomas Scofield 1995-4-25 4553 Contra Costa Along Highway 4 approximately 2.38 km east of Interestate 80 Highway 4 interchange near Rodeo Comment
  UC33073  Lasthenia conjugens Edw. L. Greene 1887-4-17 Contra Costa Antioch Comment
  POM11966  Lasthenia ferrisiae Katherine Brandegee s.n. Contra Costa Byron Hot Springs. Comment
  POM50986  Lasthenia ferrisiae Alice Eastwood 1914-3-14 3761 Contra Costa Byron Springs. Comment
  UC1585874  Lasthenia ferrisiae Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8124 Contra Costa alkali sink w and adjacent to Clifton Court Forebay (ca 15 air mi sw of Stockton) Comment
  CAS-BOT-BC353334  Lasthenia fremontii K. Curran April (Year not stated). s.n. Contra Costa Suisun. Comment
  CAS-BOT-BC353336  Lasthenia fremontii Peter H. Raven; H. L. Mason; R. Ornduff; et al. 1957-4-4 10587 Contra Costa Vernal flats 3.0 miles S of Byron. Comment
  JEPS18258  Lasthenia fremontii Peter H. Raven with Mason, Stone, Ornduff, Kuijt 1957-4-4 10587 Contra Costa 3 mi s of Byron Comment
  UC90074  Lasthenia fremontii E. L. Greene 1884-4-1 Contra Costa Byron Springs Comment
  UC2070484  Lasthenia glaberrima Barbara Ertter with Joanne Kerbavaz and Alan Whittemore 2003-6-11 18215 Contra Costa Turtle Rock Ponds on east side Pine Creek, below Diablo Ranch on west side Mount Diablo. Comment
  CHSC106711  Lasthenia glabrata subsp. glabrata Barbara Ertter; Chris Thayer 1991-6-16 11705 Contra Costa ca. 1/2 mile north of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land east of Tilden Park, perennial grassland above oak stringer, just below right on NE-facing slope. 457 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
  JEPS10186  Lasthenia gracilis W. L. Jepson 1925-4-26 10684 Contra Costa sw Mount Diablo; Black Hills Comment
  UC1301065  Lasthenia gracilis Helen K. Sharsmith 1963-4-7 5290 Contra Costa e side Kirker Pass Road (w of Antioch); San Francisco Bay Region 152 Comment
  UC30445  Lasthenia gracilis Harley P. Chandler 1901-4-5 995 Contra Costa Mt. Diablo Comment
  UC566714  Lasthenia gracilis H. L. Mason 1929-3-31 5154 Contra Costa along San Joaquin River; , Antioch Comment
  CAS-BOT-BC361121  Lasthenia microglossa Kellogg 1870-1-1 s.n. Contra Costa Antioch Comment
  JEPS105706  Lasthenia microglossa David Gowen 2004-4-16 32 Contra Costa Black Diamond Mines Regional Preserve. River View Loop trail southeast of the Arata Overlook trail junction. Comment
  UC1543176  Lasthenia minor Donald G. Nelson 1937-3-30 470 Contra Costa s of Byron (railroad tracks, paralleling the highway, on road to Tracy) Comment
  CAS-BOT-BC366303  Lasthenia minor Alice Eastwood 1914-3-17 3830 Contra Costa Byron Springs Comment
  CAS-BOT-BC366305  Lasthenia minor Ira L. Wiggins 1930-4-17 4556 Contra Costa 1 mi E. of Mountain House, on road to Byron Comment
  RSA22273  Lasthenia minor L. S. Rose 1937-3-26 37007 Contra Costa Mountain House; Altamont Pass. 76 Comment
  JEPS25041  Lasthenia platycarpha Rimo Bacigalupi with Paul C. Hutchinson and John Weiler 1959-3-10 6967 Contra Costa 1 mi se Byron (in fields e of Byron road) 6 Comment
  CDA27128  Lathyrus jepsonii subsp. californicus D. G. Kelch 2007-4-29 7 .204 Contra Costa Carquinez Strait; Richmond; Chevy s Hill N. Hilltop Dr. Comment
  UC1795704  Lathyrus jepsonii var. californicus Barbara Ertter, Dale Sanders, Dan Norris 1994-3-26 12331 Contra Costa Peyton Hill east of I-680 east of Martinez, south of Waterfront Road 30 Comment
  CAS-BOT-BC205011  Lathyrus jepsonii var. jepsonii E. E. Stanford 1930-5-24 1515 Contra Costa Marsh Creek Canyon Comment
  JEPS112357  Lathyrus jepsonii var. jepsonii Dean G. Kelch and Andrew G. Murdock 2004-6-4 325 Contra Costa Pacheco Marsh; County: Contra Costa. Comment
  JEPS64867  Lathyrus jepsonii var. jepsonii W. L. Jepson 1937-7-2 18448 Contra Costa 0.5 mi w Crockett; Carquinez Straits Comment
Read comments
Jan 2 2016
  CDA42366  Lathyrus latifolius D. G. Kelch, Vince Guise 2012-7-26 12 .24 Contra Costa Wildcat Canyon Park, Alvarado Unit. Comment
  JEPS99993  Lathyrus vestitus A. Langston 2003-6-19 AL 51 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC15364  Lathyrus vestitus Ivar Tidestrom 1893-4-15 Contra Costa Sheep Island Comment
  UC1300852  Lathyrus vestitus var. vestitus Helen K. Sharsmith 1962-4-18 4945 Contra Costa above Carquinez Straits (Crockett-Martinez road); San Francisco Bay Region 60 Comment
  UC1819260  Lathyrus vestitus var. vestitus Barbara Ertter, Dale Sanders, Dan Norris 1994-3-26 12332 Contra Costa Peyton Hill east of I-680 east of Martinez, south of Waterfront Road, southeast side of hill, with dense patches of Wyethia angustifolia. 30 Comment
  UC69527  Lathyrus vestitus var. vestitus Jos. Burtt Davy 1897-4-17 Contra Costa Point Isabel West Berkeley Comment
  JEPS87986  Lavatera cretica Barbara Ertter 1991-5-12 9813 Contra Costa sw corner El Cerrito (Point Isabel Regional Shoreline, on San Francisco Bay); San Francisco Bay, Point Isabel Regional Shoreline Comment
  CAS-BOT-BC323912  Layia chrysanthemoides Alice Eastwood 1914-3-14 3821 Contra Costa Byron Springs Comment
  UC89156  Layia chrysanthemoides C. F. Baker 1903-4-27 2903 Contra Costa Byron Comment
  UC912574  Layia chrysanthemoides Herbert L. Mason 1929-3-31 5151 Contra Costa Sacramento River at Antioch; Sacramento River Comment
  POM181462  Layia chrysanthemoides I. L. Wiggins 1930-4-17 4572 Contra Costa 1/4 mi. S. of Byron. Comment
  UC691555  Layia gaillardioides Mary L. Bowerman 1933-4-22 1904 Contra Costa ridge w of upper end of Curry-Cave Point trail; Black Hills Comment
  UC697167  Layia gaillardioides Mary L. Bowerman 1933-4-15 1864 Contra Costa second ridge s of Arroyo del Cerro; Mount Diablo Comment
  CAS-BOT-BC321750  Layia gaillardioides Joseph Andorfer Ewan 1936-4-15 9444 Contra Costa E. slope Bald Peak, San Pablo Ridge Comment
  JEPS40029  Layia glandulosa H. L. Mason 1932-3-20 Contra Costa Antioch Comment
  POM53349  Layia glandulosa subsp. glandulosa C. F. Baker 1903-4-27 2939 Contra Costa Antioch Comment
  RSA81648  Layia glandulosa subsp. glandulosa James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC327243  Layia hieracioides Mrs. Brandegee 1883-5-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC327245  Layia hieracioides M. K. Curran 1884-1-1 s.n. Contra Costa Plants of Mount Diablo. South of Turtle Rock, pool east of main pond: In belt of Eleocharia palustris. Comment
  UC697169  Layia hieracioides Mary L. Bowerman 1933-5-3 1969 Contra Costa Due s of summit 731 Comment
  CAS-BOT-BC370665  Layia platyglossa Alice Eastwood 1915-5-30 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC370667  Layia platyglossa C. F. Baker 1903-5-28 2874 Contra Costa Antioch Comment
  CAS-BOT-BC377911  Layia platyglossa Lewis S. Rose 1933-4-17 33093 Contra Costa Antioch Comment
  UC518017  Layia platyglossa Lewis S. Rose 1933-4-17 33093 Contra Costa Antioch Comment
  UC691491  Layia platyglossa Mary L. Bowerman 1933-6-7 2261 Contra Costa North Peak Ridge Mount Diablo, North Peak Ridge 1021 Comment
  UC697152  Layia platyglossa Mary L. Bowerman 1935-4-26 2918 Contra Costa summit Mount Diablo Comment
  RSA721283  Layia platyglossa subsp. platyglossa Barbara Ertter, Brad Olson, Dianne Lake 1996-4-14 14589 Contra Costa North Peak of Mt. Diablo 1098 Comment
  UC2032848  Lemna Doran, Andrew Scott 2012-3-20 719 Contra Costa Southern part of Brooks Island, west side of quarry in pool. Comment
  UC692108  Lemna minor Mary L. Bowerman 1933-9-9 2427 Contra Costa n of Curry Canyon (Mount Diablo, Blackberry Spring); Mount Diablo, Blackberry Spring Comment
  UC2027954  Lemna minor Barbara Ertter with Joanne Kerbavaz 2000-8-20 17504 Contra Costa Frog Pond on southeast side of Mount Diablo. Comment
  UC1607680  Lemna minuscula Barbara Ertter, Chris Thayer 1993-5-7 11690 Contra Costa Hopkins Spring 1/2 mi se of Inspiration Point (on Wildcat Canyon Road, East Bay Municipal Utilities District land e of Tilden Park); Hopkins Spring, Wildcat Canyon Road 304 Comment
  UC692082  Lemna minuscula Mary L. Bowerman 1933-9-9 2430 Contra Costa Mount Diablo, (spring which feeds Frog Pond) Mount Diablo Comment
  CAS-BOT-BC534639  Lemna minuta Ira L. Wiggins 1930-4-18 4607 Contra Costa Jersey Island Comment
  JEPS78824  Lepechinia calycina Edward Lee 1936-5-24 2166 Contra Costa 10 mi from Marsh Creek Road (Morgan Territory); Morgan Territory Comment
  OBI53981  Lepidium acutidens Barbara Ertter, Jim Jokerst and Dave Magney 1989-4-5 8127 Contra Costa SE county. Clifton Court Forebay, ca 15 air mi Sw of Stockton, T1S, R3E, sec 24 SESW Comment
  SBBG29865  Lepidium dictyotum A. M. Carter 1935-3-10 753 Contra Costa Kirker Pass Rd, S of jct with Nortonville Rd 121 Comment
  CDA24905  Lepidium dictyotum var. acutidens Jim Jokerst 1989-3-29 3074 Contra Costa Byron Hot Springs area northeast of Livermore, adjacent to pipeline on terrace south of ephemeral creek. 0 Comment
  CHSC67911  Lepidium dictyotum var. acutidens James D. Jokerst 1989-3-29 3069 Contra Costa 0.25 mi S of Byron Hot Springs NE of Livermore. Comment
  CHSC67912  Lepidium dictyotum var. acutidens James D. Jokerst 1989-3-29 3074 Contra Costa Byron Hot Springs area NE of Livermore, adjacent to pipeline on terrace S of ephemeral creek. Comment
  CDA24907  Lepidium dictyotum var. acutidens Jim Jokerst 1989-3-29 3069 Contra Costa 0.25 mile south of Byron Hot Springs, northeast of Livermore. 0 Comment
  CHSC69638  Lepidium dictyotum var. dictyotum James D. Jokerst; Barbara Ertter, Dave Magney 1989-4-5 3081 Contra Costa West and adjacent to Clifton Court Forebay, E of Bryon Hwy. and Italian Slough. 3 Comment
  CDA18028  Lepidium latifolium B. Case 1999-7-8 PDR 004804 Contra Costa Grayson Creek, Pacheco. 0 Comment
  UC2070649  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
  POM300576  Lepidium latipes Mary L. Bowerman 1933-4-15 1846 Contra Costa Canyon S of Arroyo del Cerro Comment
  SEINET11983327  Lepidium latipes F. Chisaki, Bacigalupi, R. C.; Robbins, G. T. 1959-1 1320 Contra Costa on Deer Valley Rd, 0.2 mi S of junction with Briones Valley Rd (ca 8 mi S of Antioch) Comment
  CAS-BOT-BC89889  Lepidium nitidum Alice Eastwood 1914-3-14 3766 a Contra Costa Byron Springs. Comment
  CAS-BOT-BC89890  Lepidium nitidum Alice Eastwood 1914-3-14 3766 b Contra Costa Byron Springs. Comment
  CAS-BOT-BC89891  Lepidium nitidum Alice Eastwood 1914-3-14 s.n. Contra Costa Byron Springs. Comment
  CAS-BOT-BC89896  Lepidium nitidum Lewis S. Rose 1933-3-29 33045 Contra Costa Pittsburg. Comment
  CAS-BOT-BC89897  Lepidium nitidum Lewis S. Rose 1933-3-29 33045 Contra Costa Pittsburg. Comment
  CHSC21607  Lepidium nitidum Willis Ball 1975-2-23 446 Contra Costa Contra Loma Regional Park. In area #2. Ca. 160 yds w of main parking lot. 30 Comment
  UC10671  Lepidium nitidum J. Burtt Davy 1897-4-17 Contra Costa Point Isabel Comment
  UC765053  Lepidium nitidum R. F. Hoover 1938-2-27 2786 Contra Costa Danville Comment
  CAS-BOT-BC12551  Lepidium nitidum R. E. Frenkel 1964-2-5 357 Contra Costa On Morgan Territory Road, 0.2 mile south of summit. 609 Comment
  RSA0033847  Lepidium nitidum var. nitidum Barbara Ertter 2000-3-30 16922 Contra Costa North side of Mount Diablo, Bruce Lee Road between Back Canyon Trail and Coulter Pine Trail. Comment
  POM204090  Lepidium oxycarpum L. S. Rose 1933-3-29 33041 Contra Costa Nortonville. 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
  UC2028992  Leptosiphon androsaceus Barbara Ertter 2000-5-14 17003 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
  UC2027729  Leptosiphon bicolor Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15507 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  POM300970  Leptosiphon ciliatus Mary L. Bowerman 1935-5-22 3042 Contra Costa Eagle point ridge, canyon at north end which heads into saddle west of Twin Peaks. 305 Comment
  UC2027775  Leptosiphon ciliatus Barbara Ertter with Holly Forbes 1997-4-20 15565 Contra Costa North base of Mount Diablo at NE base of Eagle Ridge. Comment
  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
  UCD134062  Lessingia glandulifera var. glandulifera Ann F. Johnson 1978-5-26 AN- 21 Contra Costa San Joaquin River in front of east PG and E tower, Antioch Dunes. Comment
  JEPS79353  Lessingia pectinata var. tenuipes Edward Lee with Annetta Carter 1935-8-17 1621 Contra Costa Antioch Comment
  UC691812  Lessingia pectinata var. tenuipes Mary L. Bowerman 1936-8-25 3535 Contra Costa due w of 1004 point Lime Ridge (and n of the chaparral patch); Mount Diablo, Lime Ridge 228 Comment
  JEPS111665  Leucanthemum vulgare A. G. Murdock 2004-5-28 309 Contra Costa At west end of Refugio Valley 120 Comment
  UC686616 Image available Leymus X multiflorus Frank W. Gould 1941-7-4 1304 Contra Costa near San Francisco Bay; Albany; near San Francisco Bay at Albany, Contra Costa Co. Comment
  RSA63664  Leymus condensatus Milo S. Baker 1950-5-22 12226 Contra Costa Roadside between Martinez and Pt. Costa Comment
  CAS-BOT-BC283734  Leymus condensatus W. A. Silveus 1938-7-5 3215 Contra Costa El Cerrito Comment
  CDA32469  Leymus condensatus A. A. Beetle 1941-6-24 1751 Contra Costa Point Richmond on San Francisco Bay. 0 Comment
  CAS-BOT-BC272216  Leymus triticoides Walter Knight 1978-8-27 3188 Contra Costa Contra Loma Regional Park 30 Comment
  RSA108330  Leymus triticoides Frank W. Gould 1941-5-16 1298 Contra Costa In roadside ditch, 1/2 mile east of Lafayette on C.S. Highway 24. Comment
Read comments
Nov 1 2011
  UCD65585  Leymus triticoides R. Tofsrud 1947-6-12 176 Contra Costa W of Byron about 4 miles in the 'Arroyo de la Canada. Comment
  CAS-BOT-BC272214  Leymus triticoides R. E. Frenkel 1964-9-19 848 Contra Costa On Morgan Territore Road, 0.2 mile south of summit 637 Comment
  RSA108334  Leymus triticoides Frank W. Gould 1941-7-4 1302 Contra Costa On wastelands along Bay just north of Albany race track. Comment
  CAS-BOT-BC211109  Lilaeopsis masonii Walter Knight; Irja Knight 1977-6-18 s.n. Contra Costa Antioch Sand Dunes, Little Corral site Comment
  UC1606286  Lilaeopsis masonii Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10713 a Contra Costa N of Pittsburg (Browns Island, near confluence of Sacramento and San Joaquin rivers, opposite Pittsburg Marina (Botany Cove)) Comment
  UC17899  Limnanthes douglasii subsp. nivea W. H. Brewer 1862-4-30 1009 Contra Costa Camp 69 Walnut Creek Comment
  JEPS17888  Limnanthes douglasii subsp. rosea Rimo Bacigalupi with G. T. Robbins 1956-3-26 5530 Contra Costa bottom-lands about 2 1/2 mi s Byron (just s of S.P.R.R. crossing of road to Bethany, near head of Italian Slough) 6 Comment
  UC971818  Limnanthes douglasii subsp. rosea Charles T. Mason Jr. 1948-3-27 1134 Contra Costa 0.1 mi s Byron Hot Springs road (along Byron-Bethany road) Comment
  UCR146313  Limnanthes douglasii subsp. rosea Beecher Crampton 1968-3-27 8238 Contra Costa San Joaquin Valley, SE corner of County, c. 3.5 mi south of Byron 5 Comment
Read comments
Feb 6 2013
  SEINET1909954  Limnanthes douglasii var. rosea Barbara Ertter, Jim Kokerst, Dave Magney 1989-1 8115 Contra Costa San Diendo Co.: Black Mt. N Romona along clevland NF Rd 11S04 2.3 mi from Pamo Valley Rd, roadcut. 457 Comment
  SD180583  Limonium californicum Beecher Crampton 1950-8-5 632 Contra Costa San Pablo Canal, northwest of Richmond. Comment
  UC727781  Linanthus bicolor Milo S. Baker 1946-4-20 11332 Contra Costa s of Clayton (summit) Comment
  JEPS58275  Linanthus bolanderi Mary L. Bowerman 1935-4-26 2905 Contra Costa w of Indian Ceremonial Spring; Mount Diablo 1005 Comment
  UC449794  Linanthus ciliatus Chesnut and Drew 1889-4-17 Contra Costa Sommersville Comment
  CDA4732  Linum bienne A. G. Murdock, D. G. Kelch 2004-5-28 310 Contra Costa Carquinez Strait; At west end of Refugio Valley. Comment
  JEPS112513  Linum bienne A. G. Murdock 2004-5-28 310 Contra Costa At west end of Refugio Valley 120 Comment
  UCR248236  Linum bienne Dean Kelch 2011-5-28 11 .537 Contra Costa Carquinez Strait Region, west of Martinez, north of end of Hillside Place 183 Comment
  POM138838  Linum grandiflorum C. F. Baker 1903-4-28 s.n. Contra Costa Byron? Comment
  UC2062654  Linum usitatissimum Barbara Ertter 2004-4-25 18367 Contra Costa Coulter Pine Trail on north side of Mount Diablo State Park. Comment
  CAS-BOT-BC430619  Lithophragma affine John Thomas Howell 1933-5-14 11280 Contra Costa Hills east of St. Mary's College Comment
  CDA40556  Lithophragma affine V. Guise & K. Alder 2014-4-3 PDR# 070 P06223873 Contra Costa Danville; 0.5 mile north & 0.5 mile east of the end of Finley Road. 0 Comment
  JEPS112262  Lithophragma affine A. G. Murdock 2004-4-30 265 Contra Costa Vaca Canyon Comment
  JEPS99949  Lithophragma affine G. Smick 2003-4-3 GAS 67 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC402491  Lithophragma affine J. Burtt Davy 1895-4-7 922 Contra Costa foothills, Antioch Comment
  UC518019  Lithophragma affine Lewis S. Rose 1933-4-17 33099 Contra Costa Walnut Creek Comment
  POM203654  Lithophragma affine subsp. affine John T. Howell 1933-5-14 11280 Contra Costa Hills east of St. Mary s college Comment
  RSA468227  Lithophragma affine subsp. affine H. de 1930-4-6 s.n. Contra Costa [No locality information provided] Comment
  CDA25418  Lithophragma heterophyllum A. G. Murdock, D. G. Kelch 2004-4-3 240 Contra Costa Vaca Canyon. Comment
  CHSC107534  Lithophragma heterophyllum D. G. Kelch 2006-5-4 06 .124 Contra Costa Coast Range: Vaca Canyon, on North facing road cut/bank along Alhambra Valley Road. 162 Comment
  UC1088544  Lithophragma heterophyllum John H. Weiler 1959-1 5944 Contra Costa along Bear Creek Road Comment
  UC692422  Lithophragma heterophyllum Mary L. Bowerman 1933-4-9 1840 Contra Costa Donner Canyon, W fork Mount Diablo (by trail) 274 Comment
  CAS-BOT-BC342120  Logfia filaginoides John Thomas Howell 1940-4-21 15406 Contra Costa Pine Canyon, Mt. Diablo Comment
  UC31925  Logfia filaginoides Kellogg May 1874 Contra Costa Mt. Diablo Comment
  UC691820  Logfia filaginoides Mary L. Bowerman 1931-5-16 854 Contra Costa s side Meridian Peak summit; Mount Diablo, Meridian Peak summit Comment
  JEPS33573  Logfia gallica W. L. Jepson 1943-5-27 20839 Contra Costa Black Hills Mt. Dialo, Black Hills Comment
  CAS-BOT-BC342346  Logfia gallica H. L. Mason 1928-4-26 4386 Contra Costa Berkeley-Oakland Hills Comment
  UC2042870  Logfia gallica Barbara Ertter with Travis Columbus 1990-6-10 9101 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill, trails heading down ridge on N of Briones Peak. Comment
  JEPS75535  Lolium multiflorum P. F. Yorks 1976-5-31 508 Contra Costa 1.3 to 1.9 km s of Bear Creek Road on Hampton Road in Hampton Road Natural Reserve (n of Briones Reservoir); , n of Briones Reservoir 180 Comment
  UC1948972  Lolium multiflorum William J. Ferlatte, L. Maynard Moe 1970-4-27 1221 Contra Costa San Francisco Bay: Red Rock Island Comment
  RSA641386  Lolium perenne subsp. multiflorum Terry J. O'Brien 1999-07 s.n. Contra Costa San Francisco Bay Area. eastern Richmond along boundary with EL Cerrito. Mira Vista Park adjacent Mira Vista School 91 Comment
  POM300593  Lolium temulentum Mary L. Bowerman 1933-5-17 2096 Contra Costa Branch of Curry Canyon due south of Olafsons' barn. Comment
  JEPS128781  Lomatium caruifolium Kevin Hintsa 2000-4-6 Contra Costa Mount Diablo State Park, Mitchell Canyon at connector trail between lower section of Black Point Trail and lower White Canyon (on N edge of trail barely W of Black Point Trail's eastern section). Comment
  POM132574  Lomatium caruifolium C. F. Baker 1908-4-27 2800 Contra Costa [Unspecified] Comment
  UC659030  Lomatium caruifolium var. caruifolium Mildred E. Mathias 1937-4-11 1165 Contra Costa 3 mi. s. Byron Comment
  UC196245  Lomatium caruifolium var. caruifolium Edw. L. Greene 1889-3-23 Contra Costa near Byron Comment
  JEPS17148  Lomatium dasycarpum subsp. dasycarpum W. L. Jepson 1923-6-10 10000 Contra Costa Upper Marsh Creek Mt. Diablo Comment
  UC21279  Lomatium dasycarpum subsp. dasycarpum H. M. Hall 1901-4-5 1747 Contra Costa Mt. Diablo 640 Comment
  UC2012992  Lomatium dasycarpum subsp. dasycarpum Barbara Ertter with Susan D'Alcamo 1994-4-24 12461 Contra Costa Mount Diablo east Walnut Creek, Bald Ridge Trail above Murchio Gap. Comment
  UC691772  Lomatium macrocarpum Mary L. Bowerman 1931-4-25 781 Contra Costa summit Meridian Peak (Mt. Diablo); Mt. Diablo Comment
  JEPS17533  Lomatium nudicaule W. L. Jepson May 22 1891-May 23 1891 14314 Contra Costa Mt. Diablo Comment
  POM132672  Lomatium nudicaule A. D. E. Elmer 1903-05 4322 Contra Costa Mount Diablo Comment
  JEPS12831  Lonicera hispidula var. vacillans W. L. Jepson 1923-6-10 9988 Contra Costa head of Marsh Creek (Mt. Diablo); Mt. Diablo Comment
  UCD137367  Lonicera subspicata M. Wiesendanger 1925-5-1 1480 Contra Costa San Miguel. Comment
  JEPS12855  Lonicera subspicata var. denudata Mary L. Bowerman 1932-10-16 1634 Contra Costa ridge e Median Ridge; Mount Diablo, Donner Canyon basin 487 Comment
  UC691486  Lonicera subspicata var. denudata Mary L. Bowerman 1930-6-22 367 Contra Costa Mitchell Canyon Mount Diablo 365 Comment
  CAS-BOT-BC198600  Lotus Elsie Zeile 1921-8-6 s.n. Contra Costa Shepherd Canyon Comment
  JEPS99996  Lotus corniculatus A. Langston 2003-7-2 AL 58 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC692531  Lotus humistratus Mary L. Bowerman 1931-5-7 802 Contra Costa North Peak Ridge Mount Diablo Comment
  UC864815  Lotus humistratus Lewis S. Rose 1941-5-15 41234 Contra Costa Mt. Diablo, w slope Mt. Diablo 396 Comment
  UC69633  Lotus junceus var. biolettii Jos. Burtt Davy 1895-1 Contra Costa Moraga Pass Comment
  JEPS65159  Lotus scoparius W. L. Jepson 1944-8-5 27548 Contra Costa Moraga Ridge Oakland Hills Comment
  UC692538  Lotus scoparius Mary L. Bowerman 1932-9-24 1589 Contra Costa ridge running w from Twin Peaks; Mount Diablo 335 Comment
  UC1555365  Lotus wrangelianus Jerry Powell 1988-4-8 1531 Contra Costa Point Molate, in w Richmond Richmond Comment
  UC555421  Lotus wrangelianus H. L. Mason 1929-3-29 5124 Contra Costa Mt. Diablo Comment
  UC692264  Lotus wrangelianus Mary L. Bowerman 1931-4-4 639 Contra Costa 2 rd mi from Mount Diablo w entrance (= North Gate); Mount Diablo Comment
  JEPS100069  Lotus wrangelianus G. Smick GAS 74 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC15783  Lupinus albifrons unknown 1038 Contra Costa Walnut Creek Comment
  UC16053  Lupinus albifrons J. Burtt Davy 1895-4-7 873 Contra Costa Antioch Comment
  CAS-BOT-BC201371  Lupinus albifrons var. albifrons A. A. Heller 1908-4-16 8887 Contra Costa Antioch 12 Comment
  JEPS112415  Lupinus albifrons var. albifrons Dean G. Kelch and Andrew G. Murdock 2005-4-15 05 .142 Contra Costa Rodeo Creek; county: Contra Costa; EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump). Comment
  UC127020  Lupinus albifrons var. albifrons W. L. Jepson May 22 1891-May 23 1891 Contra Costa Mt. Diablo Comment
  UC15780  Lupinus albifrons var. albifrons F. P. McLean March 1875 Contra Costa Mt. Diablo Comment
  RSA174192  Lupinus albifrons var. collinus Jos. Burtt Davy 1897-4-17 s.n. Contra Costa Point Isabel Comment
  UC1129460  Lupinus albifrons var. collinus H. S. Yates 1934-9-2 4033 Contra Costa 2 mi nw Orinda; Concord Quad., nw of Orinda 304 Comment
  HSC101954  Lupinus albifrons var. douglasii Nikolaus Gillen, Michelle Bihler 2014-3-20 5 Contra Costa Mount Diablo State Park. Back Creek Trail. 340 Comment
  UC1999842  Lupinus arboreus Charles M. Belshaw 1935-5-30 946 Contra Costa Island route about 15 miles north of Antioch Bridge Comment
  JEPS112414  Lupinus bicolor Dean G. Kelch and Andrew G. Murdock 2005-4-15 05 .146 Contra Costa Rodeo Creek; county: Contra Costa; EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump). Comment
  JEPS73600  Lupinus bicolor L. R. Heckard 1971-4-22 2496 Contra Costa along railroad grade near highway 80 crossing e Pinole; e of Pinole Comment
  UCD107012  Lupinus chamissonis Beecher Crampton 1973-3-26 8907 Contra Costa 2 miles S.E. of Oakley. 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
  UCD107761  Lupinus formosus P. B. Kennedy 1916-5-11 12 Contra Costa Grand View Terrace; Richmond District. Comment
  UCD107762  Lupinus formosus P. B. Kennedy 1916-5-11 12 Contra Costa Grand View Terrace; Richmond District. Comment
  UC1795881  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; perennial grasslands on ridge. Comment
  UC1795812  Lupinus formosus var. formosus Barbara Ertter, Brad Olson 1994-5-7 12751 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  JEPS111072  Lupinus formosus var. formosus Lee Echols 2003-5-5 s.n. Contra Costa N of Lark Drive in N portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  UC1562851  Lupinus microcarpus var. densiflorus Barbara Ertter with Elizabeth Neese 1988-4-24 7450 Contra Costa n of e-w part of Black Diamond Trail sw Antioch (Black Diamond Mines Regional Preserve); Black Diamond Mines Regional Preserve Comment
  UC201017  Lupinus microcarpus var. densiflorus Katharine Brandegee 1918-6-16 Contra Costa near Vigorit Powder Works; near Vigorit Powder Works Comment
  UC692275  Lupinus microcarpus var. densiflorus Mary L. Bowerman 1931-4-18 735 Contra Costa Green Valley Mount Diablo (Mount Diablo); , Green Valley 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
  UC1562852  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
  UC201019  Lupinus microcarpus var. microcarpus Katharine Brandegee and Harriet E. Phillips 1918-6-16 Contra Costa near Vigorit Powder Works; near Vigorit Powder Works Comment
  UC201021  Lupinus microcarpus var. microcarpus Katharine Brandegee June 1918 Contra Costa Richmond Annex; El Dorado St. Comment
  UC201028  Lupinus microcarpus var. microcarpus Katharine Brandegee June 1918 Contra Costa Richmond Annex Comment
  UC692260  Lupinus microcarpus var. microcarpus Mary L. Bowerman 1933-4-15 1860 Contra Costa second ridge se Arroyo del Cerro Arroyo del Cerro, Mount Diablo; Mount Diablo 396 Comment
  RSA0027718  Lupinus nanus Barbara Ertter, R. K. Brummitt 1998-5-13 16132 Contra Costa Summit Road on Mount Diablo, base of rock outcrop/roadcut above Juniper Camp. Comment
  UC2028071  Lupinus nanus Barbara Ertter, Tony Morosco 1998-4-12 16002 a Contra Costa Base of Mount Olympia on north side of Mount Diablo, NE of Olympia Trail. Comment
  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
  UC2027717  Lupinus pachylobus Barbara Ertter with Stu Garrett 1997-3-29 15522 a Contra Costa West side Mount Diablo, Burma Road above North Gate Road. Comment
  UC2070441  Lupinus pachylobus Barbara Ertter with Linda Vorobik 2002-4-6 17823 Contra Costa South side of Mount Diablo, roadside NW of Curry Point trailhead. Comment
  UCSB11258  Lupinus succulentus Hayes, Judy 1961-3-30 Contra Costa South Gate of Mount Diablo State Park 182 Comment
  UC2028401  Luzula comosa Barbara Ertter with Dan Norris 1998-6-18 16225 Contra Costa Lower Devil's Slide trail falong W Fork Sycamore Creek (Madrone Canyon), south side of Mount Diablo, along path in woods 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
  JEPS107094  Lycopus americanus Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10876 Contra Costa Dow Wetlands Preserve, just w. Antioch marina, e. end of marsh across from marina Comment
  UC692629  Lythrum hyssopifolia Mary L. Bowerman 1932-8-27 1522 Contra Costa s of Turtle Rock (w of the willows, Mount Diablo); Mount Diablo Comment
  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
  UC697170  Madia elegans Mary L. Bowerman 1936-9-10 3542 Contra Costa Donner Canyon Mount Diablo (by streamlet) 335 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
  UC2028296  Madia exigua Barbara Ertter with Dan Norris 1998-6-18 16215 Contra Costa Rock City area on south side of Mount Diablo, trail to Artist Point. Comment
  CAS-BOT-BC342985  Madia gracilis Mary L. Bowerman 1930-6-5 264 Contra Costa Mount Diablo. North Road 5.8 miles from North Gate 457 Comment
  UC517457  Madia gracilis John Thomas Howell 1933-5-14 11266 Contra Costa hills e St. Mary's College Comment
  CAS-BOT-BC342983  Madia gracilis John Thomas Howell 1931-5-12 6484 Contra Costa North side of Mt. Diablo Comment
  CAS-BOT-BC342987  Madia gracilis David D. Keck 1941-6-5 5309 Contra Costa Berkeley Hills, Fish Creek Road, 1/4 mi. W. of east portal of Broadway Tunnel 335 Comment
  POM267781  Madia gracilis subsp. gracilis D. D. Keck 1941-6-5 5309 Contra Costa Berkeley Hills, Fish Creek Road 1/4 mile W of E portal of Broadway Tunnel. 335 Comment
  POM54304  Madia radiata Katherine Brandegee 1908-4-9 s.n. Contra Costa Borders of cultivated fields near Antioch Comment
  SD8606  Madia radiata Brandegee Apr 1889 Contra Costa Antioch Comment
Read comments
Jan 9 2007
  UC89534  Madia radiata M. K. Curran May 1889 Contra Costa Antioch Comment
  UC2027950  Malacothamnus fasciculatus Barbara Ertter with Joanne Kerbavaz and Mary Bowerman 2000-8-20 17516 Contra Costa South side Mount Diablo, Pioneer Horse Camp. Comment
  UC2028129  Malacothamnus fasciculatus Barbara Ertter 1998-5-3 16079 a Contra Costa Wall Point Road and Emmons Canyon Road, southwest flank of Mount Diablo. Comment
  CAS-BOT-BC206328  Malacothamnus fremontii Joanne Taylor 1941-7-18 20 Contra Costa By hills of Nortonville. 243 Comment
  SD70001  Malacothamnus fremontii Darley F. Howe 1968-5-20 4515 Contra Costa Nortonville. Comment
  UC692618  Malacothamnus fremontii Mary L. Bowerman 1938-6-30 3696 Contra Costa below Blue Oak Flat; Mount Diablo 762 Comment
  UC763002  Malacothamnus fremontii R. F. Hoover 1939-5-20 4107 Contra Costa Head of Markley Canyon Comment
  UC2029010  Malacothamnus fremontii Barbara Ertter with Dan Norris 1999-11-14 16853 Contra Costa Black Diamond Mines Regional Preserve, chaparral patch below east half of Miners Trail. Comment
  UC1280806  Malacothamnus hallii H. E. McMinn and E. Maino 1931-4-11 123 Contra Costa Mount Diablo Comment
  CAS-BOT-BC204089  Malacothamnus hallii Lewis S. Rose 1954-6-29 54082 Contra Costa Mt. Diablo 2 1/2 mi. n. of Turtle Rock 182 Comment
  CAS-BOT-BC204092  Malacothamnus hallii Walter Knight; Irja Knight; Mary L. Bowerman 1969-6-4 2620 Contra Costa North Road, Mt. Diablo. East side of road 259 Comment
  SEINET10680800 Image available Malacothamnus hallii Harvey M. Hall 1916-5-30 Hall 301 Contra Costa Mt. Diablo. On the westerly side north of Pine Canon, Upper Sonoran Zone. Growing on stony south slope, associated with Artemisia californica, Salvia mellifera, Mimulus glutinosus, and Lofus glaber, and with thickets of Adenostoma fasciculatum near by. 275 Comment
  UC691438  Malacothrix clevelandii Mary L. Bowerman 1933-5-18 2134 Contra Costa Mount Diablo Comment
  JEPS99508  Malacothrix clevelandii Mary Bowerman 1978-5-14 Contra Costa Mount Diablo. Old wagon trail to mine on E face of Eagle Peak. Comment
  UC1613944  Malacothrix floccifera Charles M. Belshaw 1935-6-24 1024 Contra Costa Sobrante Hills Comment
  POM53214  Malacothrix floccifera C. F. Baker 1903-4-28 2948 Contra Costa Marsh Creek, Mt. Diablo. Comment
  JEPS111544  Malva nicaeensis D. G. Kelch 2004-6-19 04 .279 Contra Costa Crockett - West Valona Along railroad tracks west of Carquinez Bridge Crockett (Valona) Contra Costa County CA 20 Comment
  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
  JEPS111545  Malvella leprosa D. G. Kelch 2004-7-9 04 .306 Contra Costa Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite 60 Comment
  UC108945  Malvella leprosa Mrs. K. Brandegee 1892-6-8 Contra Costa Antioch Comment
  UC871380  Malvella leprosa Lewis S. Rose 1938-10-28 38310 Contra Costa Byron 3 Comment
  JEPS100091  Marah fabacea G. Smick 2003-2-25 GAS 57 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  SEINET3450872  Marah fabacea Dean G. Kelch, Andrew G. Murdock 2003-3-21 DGK 3 .040 Contra Costa Martinez West, Martinez West, Ozol Rock and Scenic Drive 40 Comment
  RSA77636  Marah fabacea J. T. Howell 1933-3-29 10903 Contra Costa Nortonville hills. Comment
  JEPS63286  Marrubium vulgare Mrs. E. L. Mossman 1931-3-20 74 Contra Costa e Richmond (Berkeley Hills); Berkeley Hills Comment
  UC1586020  Marsilea vestita subsp. vestita Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8131 Contra Costa ca. 15 air mi sw Stockton (w and adjacent to Clifton Court Forebay); se Contra Costa Co. Comment
  JEPS99957  Matricaria discoidea G. Smick 2003-3-27 GAS 91 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC89519  Matricaria discoidea T. S. Brandegee May 1890 Contra Costa Antioch 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
  UC635484  Meconella oregana Herbert L. Mason 1927-4-16 3666 Contra Costa Wild Cat Canyon Berkeley Hills Comment
  RSA195482  Medicago arabica C. R. Gunn 1963-5-31 2659 Contra Costa Contra Cost County: Tilden Park, Berkeley at intersection of Shasta and Oak Hill Roads Comment
  CHSC21646  Medicago polymorpha Willis Ball 1975-3-2 476 Contra Costa Contra Loma Regional Park. In area #4. On e side of lake ca. 100 yds s of dam. 30 Comment
  UC692277  Medicago polymorpha Mary L. Bowerman 1930-6-5 247 a Contra Costa west road (= North Road) 5.8 mi from entrance; Mount Diablo 457 Comment
  UC692279  Medicago polymorpha Mary L. Bowerman 1931-4-11 703 Contra Costa Pine Canyon Mount Diablo (level grassy area toward mouth) Comment
  POM11730  Medicago polymorpha Katherine Brandegee s.n. Contra Costa Byron Hot Springs. Comment
  JEPS25127  Melica californica G. Thomas Robbins 1959-4-18 3994 Contra Costa near and n Pt. Richmond (along Western Drive, at the w base of Potrero Hills); Richmond, Potrero Hills 7 Comment
  JEPS99985  Melica californica S. O'Neil 2003-5-8 SEO 31 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  POM300626  Melica californica Mary L. Bowerman 1935-4-22 2883 Contra Costa Ridge west of Pioneer Road (west of Stage Road). East face of ridge; Mount Diablo. 854 Comment
  UC188878  Melica californica Harley P. Chandler 1901-4-5 965 Contra Costa between Pine Canyon and Mt. Diablo Summit; Mt. Diablo Region Comment
  UC691188  Melica californica Mary L. Bowerman 1933-5-18 2124 Contra Costa Blackberry Spring; Mount Diablo Comment
  UC692462  Melica californica Mary L. Bowerman 1935-4-17 2829 Contra Costa 2 mi from Mount Diablo West Road (North Rd) entrance (North Gate) (just w of chaparral); Mount Diablo 237 Comment
  UCD86441  Melica californica Beecher Crampton 1956-5-14 3392 Contra Costa 7 miles southwest of Antioch, just east of old Nortonville. Comment
  CDA29038  Melica torreyana D. G. Kelch 2006-5-7 6 .164 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  UC162940  Melica torreyana C. F. Baker 1903-4-28 2815 Contra Costa Mitchell's Canyon; Mt. Diablo Comment
  POM300623  Melica torreyana Mary L. Bowerman 1935-5-18 3024 Contra Costa Mount Diablo, Northwest facing slope across the road from, and a little east of, the parking area. 1067 Comment
  UCD161481  Melica torreyana A. A. Beettle 1941-3-28 1723 Contra Costa near Orinda. Comment
  CDA15238  Melilotus indicus G. F. Hrusa, D. Crowe 1998-5-8 14369 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg. Comment
  UC407395  Melilotus indicus Ira L. Wiggins 1930-4-18 4599 Contra Costa Jersey Island Comment
  OBI13670  Melissa officinalis G. Thomas Robbins 1959-8-1 4115 Contra Costa Las Trampas Crk, about 1.5 mi SE of St. Marys College 183 Comment
  JEPS99554  Mentzelia dispersa Mary Bowerman 1978-6-3 Contra Costa Mount Diablo, between lower summit parking lot and road. Comment
  UC19581  Mentzelia dispersa Edw. L. Greene 1892-6-20 Contra Costa Mt. Diablo Comment
  UC1818941  Mentzelia dispersa Barbara Ertter, Mary Bowerman 1994-6-19 12849 a Contra Costa Mt. Diablo State Park east of Walnut Creek; lower Summit Parking Lot, roadside. Comment
  UC672665  Mentzelia micrantha H. L. Mason 1928-4-29 4435 Contra Costa Mount Diablo, Sycamore Canyon Comment
  UC692627  Mentzelia micrantha Mary L. Bowerman 1934-4-21 2534 Contra Costa Muir Area Mount Diablo Comment
  CDA33748  Mercurialis ambigua D. G. Kelch 2011-2-5 11 .018 Contra Costa Crockett below Zampa Bridge. 0 Comment
  UCD134487  Micropus californicus var. californicus P. B. Kennedy 1925-4-26 s.n. Contra Costa Mt. Diablo. Below old road. Comment
  JEPS89620  Microseris campestris Dean W. Taylor 1990-4-23 10634 Contra Costa ca. 2 mi. due w. Byron Hot Springs; San Joaquin Valley, Byron Hot Springs 7 1/2 Quad. 1964 ed. 30 Comment
  UCD77859  Microseris douglasii Robert E. Preston 1997-3-8 1018 Contra Costa Black Diamond Mines Regional Park, along Stewartsville Trail. 91 Comment
  UC2027816  Microseris douglasii Barbara Ertter with Holly Forbes 1997-4-20 15550 Contra Costa North base of Mount Diablo, roadside on trail to Back Creek from Mitchell Canyon trailhead. Comment
  UC2027921  Microseris douglasii Barbara Ertter with Dan Norris 2001-4-8 17583 Contra Costa Lime Ridge Open Space east of Walnut Creek, high part of main ridge. Comment
  JEPS36137  Microseris douglasii subsp. douglasii R. F. Hoover 1937-5-14 2109 Contra Costa Franklin Creek Valley Comment
  UC565499  Microseris douglasii subsp. douglasii H. L. Mason 1929-3-31 5142 Contra Costa Briones Valley Comment
  UC691463  Microseris douglasii subsp. douglasii Mary L. Bowerman 1931-4-11 698 Contra Costa toward mouth of Pine Canyon; Mount Diablo Comment
  CAS-BOT-BC348883  Microseris douglasii subsp. douglasii Walter Knight; Irja Knight 1979-4-22 3442 Contra Costa At s.e. corner of Appian Way and Interstate 80 in Pinole Comment
  CAS-BOT-BC348885  Microseris douglasii subsp. douglasii Brandegee No date on label s.n. Contra Costa Antioch Comment
  SEINET10761171  Microseris douglasii subsp. douglasii Barbara J. Ertter, Stu Garrett 1997-3-29 Ertter 15527 Contra Costa West side Mount Diablo, Burma Road on Long Ridge, serpentine area (already drying out after 2 months without rain). Comment
  JEPS88684  Microseris douglasii subsp. tenella Edw. L. Greene March, 1889 Contra Costa Byron Comment
  UC691442  Microseris sylvatica Mary L. Bowerman 1931-5-2 790 Contra Costa foot of Eagle Point ridge Mount Diablo Comment
  UCD118913  Microsteris gracilis Laurence S. Jones 1934-4-8 s.n. Contra Costa West slopes of Mt. Diablo. 609 Comment
  UC1055920  Mimetanthe pilosa N. Floy Bracelin 1944-9-9 2799 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  JEPS100144  Mimulus aurantiacus G. Smick 2003-3-13 GAS 66 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  POM5025  Mimulus cardinalis M. Alice King 1896-07 257 Contra Costa San Pablo Comment
  UC1613940  Mimulus grandis Charles M. Belshaw 1935-6-24 1019 Contra Costa Sobrante Hills Comment
  UC2028091  Mimulus guttatus Barbara Ertter, Tony Morosco 1998-4-12 16001 Contra Costa Base of Mount Olympia on north side of Mount Diablo, NE of Olympia Trail. Comment
  UC1795666  Minuartia douglasii Barbara Ertter, Mary Bowerman et al. 1995-5-7 14059 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, open north facing slope around rock outcrops (near creek crossing above woods) with seepage. Comment
  UC1607684  Minuartia pusilla Barbara Ertter, Lynne Hosley 1993-4-17 11512 Contra Costa ca 10 air mi n Livermore (hills in lee of Mt. Diablo, edge of outcrop s of Hummingbird trail); Morgan Territory 609 Comment
  RSA0026044  Mirabilis jalapa D. E. Breedlove 1969-10-18 16711 Contra Costa Along the roadbank on Reliez Valley Road at the junction with Gloria Terrace; Lafayette. Comment
  UC691408  Monardella douglasii Mary L. Bowerman 1935-6-1 3116 Contra Costa Diablo Trail Mount Diablo, Meridian Peak 1082 Comment
  RSA83391  Monardella douglasii J. T. Howell 1942-7-19 17049 Contra Costa Northeast of Deer Flat, Mount Diablo Comment
  CAS-BOT-BC220515  Monardella villosa Mary L. Bowerman 1938-6-21 3689 Contra Costa Mount Diablo Comment
  UC1076314  Monolepis nuttalliana Herbert L. Mason 1931-4-5 5891 Contra Costa Antioch sandhills Comment
  POM301019  Monolopia gracilens Mary L. Bowerman 1933-5-9 2057 Contra Costa Mount Diablo: Muir Area, southeast slope east of the rocks Comment
  CAS-BOT-BC349611  Monolopia major Ethel Crum 1936-4-6 1741 Contra Costa Two miles west of Byron 45 Comment
  CHSC23335  Monolopia major Willis Ball 1975-3-2 474 Contra Costa Contra Loma Regional Park. In area #2. On s side of hill ca. 50 yds ne of single restroom at sw end of lake. Approximately half way up the hill. 53 Comment
  UCD134571  Monolopia major Mrs. Saunders 1925-3-21 s.n. Contra Costa near Byron. Comment
  CAS-BOT-BC83285  Myosurus minimus M. K. Curran 1884-1-1 s.n. Contra Costa Near Antioch. Comment
  CAS-BOT-BC83292  Myosurus minimus Herbert L. Mason 1952-4-26 14269 Contra Costa 3.5 miles south of Byron. 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
  UC1738113  Myosurus minimus D. E. Stone 1957-3-15 14 -20 Contra Costa 3 mi S of Byron ( on road to Herdlyn) Comment
  UCD96307  Myosurus minimus H. L. Mason 1952-4-14 14263 Contra Costa 3.5 miles south of Byron. Comment
  CHSC69649  Myosurus sessilis James D. Jokerst 1989-3-28 3059 Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. Comment
  UC1738117  Myosurus sessilis D. E. Stone 1955-8-26 8 -2 Contra Costa 3 mi S of Byron ( on road to Herdlyn) Comment
  POM264922  Nassella cernua A. A. Beetle 1941-3-28 1718 Contra Costa Orinda Comment
  UC60163  Nassella lepida Jos. Burtt Davy 1899-4-9 7863 Contra Costa Las Trampas Peak Comment
  UCD87436  Nassella pulchra A. A. Beetle 1941-3-29 1718 Contra Costa Orinda. Comment
  UCD87459  Nassella pulchra Beecher Crampton 1955-4-11 2472 Contra Costa city of Richmond, East Shore and San Pablo Avenues. Comment
  UCD87531  Nassella pulchra Frank W. Gould 1941-4-20 1281 Contra Costa Near Richmond. Comment
  UC30207  Navarretia cotulifolia W. H. Brewer 1862-5-19 1110 Contra Costa n of Kirker's Pass Comment
  SEINET10811232 Image available Navarretia gowenii D. Gowen 2005-5-25 Gowen 390 Contra Costa Lime Ridge Open Space on N. side. Just SE of one of the quarries. Clay soil. 183 Comment
  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
  UC2028260  Navarretia mellita Barbara Ertter 1999-6-12 16720 Contra Costa Knobcone Point Road on south side of Mount Diablo, burned chamissal at head of NE fork of Sycamore Creek. Comment
  UCD48584  Navarretia mellita H. L. Mason 1945-6-12 12588 Contra Costa Ridge south east of Mount Diablo near summit of road up Marsh Creek, Contra Costa County, California. Comment
  UC2042983  Navarretia pubescens Barbara Ertter with Dan Norris 1998-6-18 16216 Contra Costa Rock City area on south side of Mount Diablo, trail to Artist Point Comment
  UC2028276  Navarretia pubescens Barbara Ertter 1999-6-12 16700 Contra Costa Black Hawk Ridge Road between Knobcone Point Road and NE fork of Sycamore Creek, South side of Mount Diablo. Comment
  UC2042986  Navarretia pubescens Barbara Ertter with Alan Prather 2003-6-7 18207 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, shortcut between Coyote Trail and Stone Corral Trail. Comment
  JEPS112008  Navarretia squarrosa D. G. Kelch 2004-7-9 04 .317 Contra Costa Ferndale Road Ferndale Road North of Alhambra Valley Road. Trail to west of road end. 240 Comment
  UCD36036  Navarretia squarrosa Beecher Crampton 1949-7-31 488 Contra Costa Contra Cost County, between Pinole and San Pablo, along US Highway 40, above Garrity Creek. 30 Comment
  JEPS49756  Nemophila heterophylla Rimo Bacigalupi, and Alice Howard, and Paul Hutchison 1967-3-29 9220 Contra Costa on w slope Las Trampas Ridge Upper reaches Bolinger Canyon, w slope Las Trampas Ridge (Upper reaches of Bolinger Canyon) 381 Comment
  UC24180  Nemophila heterophylla Jos. Burtt Davy 1901-4-21 6922 Contra Costa Wildcat Canyon Comment
  UC592192  Nemophila heterophylla H. L. Mason 1929-3-15 5052 Contra Costa Nortonville; on grassy hillslopes Comment
  UC606926  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
  UC67124  Nemophila heterophylla Harley P. Chandler 1901-4-5 949 Contra Costa Pine Canyon , Pine Canyon (Mt. Diablo) Comment
  PASA2111  Nemophila heterophylla Annetta Carter 1929-3-29 Contra Costa near Clayton Comment
  POM249049  Nemophila heterophylla Lincoln Constance, J. H. Morrison 1938-5-5 2190 Contra Costa Above Deer Flat near head of Mitchell Canyon, NW slope of Mt Diablo. 671 Comment
  JEPS111831  Nemophila menziesii var. menziesii D. G. Kelch 2005-3-25 05 .96 Contra Costa Fernandez Ranch Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak 115 Comment
  UC592126  Nemophila pedunculata H. L. Mason 1932-3-20 6841 Contra Costa Antioch sand hills Comment
  CDA22540  Nicotiana acuminata var. multiflora Slattergren 2008-7-22 PDR# 1373540 Contra Costa Walnut Creek, 1575 North Gate Rd. 0 Comment
  POM300990  Nicotiana bigelovii Mary L. Bowerman 1936-6-20 3416 Contra Costa Ridge west of Mount Zion, west side. 213 Comment
  UC691506  Nicotiana quadrivalvis Mary L. Bowerman 1936-6-20 3416 Contra Costa ridge w Mount Zion (w side of ridge, road bending up canyon to south); Mount Diablo 213 Comment
  CDA3508  Nigella damascena J. de Fremery, C. Beutler 1974-6-18 Contra Costa Brentwood Road at Southern Pacific railroad tracks, Brentwood. 0 Comment
  UC691645  Nuttallanthus texanus Mary L. Bowerman 1932-4-16 1340 a Contra Costa Eagle Point ridge just s of Twin Peaks (Mount Diablo); , Eagle Point Comment
  CAS-BOT-BC140359  Oemleria cerasiformis Barrett Anderson 1987-4-30 3506 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD 125 Comment
  UC691106  Oemleria cerasiformis Mary L. Bowerman 1935-3-16 2734 Contra Costa Peach Tree Springs Rd. Mount Diablo (e fork of canyon) 228 Comment
  SBBG39495  Oemleria cerasiformis L. S. Rose 1970-3-2 70011 Contra Costa 2 mi NW of Canyon 213 Comment
  UCD127743  Oenanthe sarmentosa Walter Knight; Irja Knight et al. 1978-9-5 3222 Contra Costa Browns Island. In marsh south of Sandy Knoll. Comment
  CDA38155  Oenothera deltoides subsp. cognata F. J. Brucato 1962-5-2 s.n. Contra Costa Knightsen; Sunset and Eden Plains Rd. 0 Comment
  UC1241161  Oenothera deltoides subsp. howellii Wm. Klein 1958-6-9 442 Contra Costa sandhills just n Antioch (along the channel) Comment
  UC971924  Oenothera deltoides subsp. howellii P. D. Hurd 1952-5-26 Contra Costa one mi e Antioch (in sand dunes close to w margin of river near its mouth); San Joaquin River 30 Comment
  RSA119390  Oenothera deltoides subsp. howellii William M. Klein 1958-6-9 441 Contra Costa Sandhills N of Antoch, along the San Joaquin River Channel. 2 Comment
  RSA119436  Oenothera deltoides subsp. howellii William M. Klein 1958-6-9 433 Contra Costa Sandhills N of Antoch, along the San Joaquin River Channel. 2 Comment
  SDSU8854  Oenothera ovata J. Godsil 1952-4-8 158 Contra Costa El Sobrante, hills toward Pinole. Comment
  UC444919  Orobanche californica subsp. feudgei T. S. Brandegee June 1884 Contra Costa Antioch. Comment
  UC1076301  Orobanche fasciculata Herbert L. Mason 1926-5-7 2704 Contra Costa Near Summit of Mount Diablo. Comment
  UC27861  Orobanche fasciculata W. H. Brewer 1862-6-20 1124 Contra Costa Hill North of Coal Mine, north of Mt. Diablo. Comment
  JEPS121477  Orobanche vallicola Adam C. Schneider 2013-10-12 316 Contra Costa Briones Regional Park, along north side of Beark Creek Trail, about 3/4 mile east of Oak Grove campground. Comment
  POM300994  Orthocarpus attenuatus Mary L. Bowerman 1933-5-11 2084 Contra Costa Inner Black Hills, west end (east of the meridian). Comment
  SEINET3821123 Image available Orthocarpus erianthus Lewis S. Rose 1932-3-26 32115 Contra Costa Open hillsides, Nortonville. Comment
  POM181461  Orthocarpus erianthus I. L. Wiggins 1930-4-17 4571 Contra Costa 1/4 mi. S. of Byron. Comment
  SEINET3840906  Oxalis carnosa Unknown 1976-3-25 2117 Contra Costa International Succulent Institute, 10 Corte Sombrita, between Maraga and Orinda Comment
  SEINET920557  Oxalis corniculata August Hartman 1960-1 32 Contra Costa 2055 Carmel Drive, Concord. 22 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
  UCD150909  Panicum capillare James A. Neilson Jr. 1972-10-22 3506 Contra Costa Walnut Creek drainage at State Highway 4. Elevation estimated using Google Earth by label maker. 1 Comment
  UCD89586  Panicum dichotomiflorum Beecher Crampton 1965-9-29 7525 Contra Costa 5 miles S of Brentwood, Vasco Road and Camino Vaqueros. Comment
  UC1818876  Panicum miliaceum subsp. miliaceum Barbara Ertter 1995-8-19 14505 Contra Costa Edge of Cerrito Creek on north side of Albany Hill, south edge of El Cerrito; dense weeds at edge of sluggish water. Comment
  CHSC84547  Parapholis incurva John Dittes 2003-5-6 2003 -15 Contra Costa San Joaquin Valley; approximately 10.0 air-miles north of Livermore, 0.4 air-miles north of Vasco Road; Los Vaqueros Reservoir Watershed. 65 Comment
  UCD88471  Parapholis incurva Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  UC1789178  Passiflora tarminiana Barbara Ertter 1999-9-17 16846 Contra Costa south edge of El Cerrito at northeast base of Albany Hill, edge of paved lot at southwest corner of junction San Pablo Avenue and Carlson Avenue, near Cerrito Creek. Comment
  POM63644  Pectocarya penicillata C. F. Baker 1903-4-25 2804 Contra Costa Antioch. Comment
  UC573135  Pectocarya penicillata H. L. Mason 1932-3-20 6845 Contra Costa Antioch sand hills Comment
  UC691634  Pectocarya pusilla Mary L. Bowerman 1933-5-8 2019 Contra Costa near crest Rock City Ridge (n side by rd to camp ground); Fossil Ridge 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
  UC691604  Pedicularis densiflora Mary L. Bowerman 1932-1-30 1080 Contra Costa nw corner of basin of ne fork of Sycamore Creek; Mount Diablo, Inner Black Hills Comment
  UCD102373  Pedicularis densiflora Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Burma Road at Mount Diablo. 520 Comment
  RSA123949  Pedicularis densiflora E. F. Sprague 1957-5-30 1134 Contra Costa Rocky Point, Mount Diablo. 610 Comment
  RSA124117  Pedicularis densiflora E. F. Sprague 1956-4-5 1096 Contra Costa Rocky Point, Mt. Diablo. 610 Comment
  UC75670  Pediomelum californicum Milo S. Baker 1904-6-24 Contra Costa Summit of Mt. Diablo Comment
  POM118165  Pediomelum californicum H. M. Hall, F. M. Essig, C. C. Hall 1916-5-31 10133 Contra Costa Summit of Mount Diablo. 1170 Comment
  RSA91021  Pediomelum californicum F. W. Peirson 1923-7-1 3618 Contra Costa Near summit of Mt. Diablo. Comment
  RSA686788  Pellaea andromedifolia Mark Morris 1929-03 14912 Contra Costa Mt. Diablo. Comment
  UC399521  Pellaea andromedifolia Ivar Tidestrom June, 1895 Contra Costa Crockett Comment
  NY583852  Penstemon centranthifolius A. Kellogg 1869-4-8 680 Contra Costa Antioch Comment
  UC2028335  Penstemon centranthifolius Barbara Ertter 1991-5-5 9775 Contra Costa Black Diamond Mines Regional Preserve S of Pittsburg, S side of Rose Hill above Nortonville Pass Comment
  SEINET12320780  Penstemon centranthifolius Unknown 1980-1 3879 Contra Costa Lime Ridge, N end, S of Ygnacio Valley Rd between Walnut Creek & Concord Comment
  UC1050060  Penstemon cordifolius N. Floy Bracelin 1941-7-13 1491 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  RSA407924  Penstemon heterophyllus subsp. purdyi Cora Mae Life 1923-7-4 92 Contra Costa Mt Diablo. Comment
  UC691510  Penstemon heterophyllus var. heterophyllus Mary L. Bowerman 1935-6-15 3132 Contra Costa Flat (first bottom) where stream forks Mount Diablo, Mitchell Creek, Flat (first bottom) (Mitchell Creek, Mount Diablo) 640 Comment
  UC1481542  Penstemon heterophyllus var. purdyi Neil Havlik 1980-6-26 941 Contra Costa e side of Siesta Valley in a small ravine e side of Siesta Valley Comment
  CAS-BOT-BC71614  Pentagramma triangularis D. E. Breedlove 1970-4-18 17426 Contra Costa at the north edge of Lafayette above Laurel Drive 243 Comment
  SEINET12315987  Pentagramma triangularis M. T. Doutt 1930-1 98 Contra Costa Marsh Creek Comment
  JEPS112050  Pentagramma triangularis subsp. triangularis D. G. Kelch 2004-3-12 04 .22 Contra Costa Pinole Valley Hillside and canyon above Wright Road. Off of Pinole Valley Road. Contra Costa County, CA 130 Comment
  UC691889  Perideridia californica Mary L. Bowerman 1933-4-26 1930 Contra Costa Perkins Canyon Mount Diablo (between main e ridge of North Peak and ridge to its south, by edge of stream) 518 Comment
  UC1390001  Perideridia oregana T. I. Chuang, L. Constance, R. S. Mitchell, and S. Banwar 1965-7-23 6009 b Contra Costa just below Live Oak Picnic Area; Mount Diablo 487 Comment
  CAS-BOT-BC413495  Persicaria amphibia Mary L. Bowerman 1935-7-22 3185 Contra Costa Mount Diablo. Hidden Pond 518 Comment
  CAS-BOT-BC413497  Persicaria amphibia Mary L. Bowerman 1935-9-13 3339 Contra Costa Mount Diablo. Hidden Pond Comment
  JEPS125632  Persicaria hydropiperoides Daniel Slakey with CNPS Volunteers 2015-9-12 226 Contra Costa Browns Island, northern part of Crooked Slough. Comment
  CAS-BOT-BC419324  Persicaria punctata Brian Atwater 1978-10-24 BA- 162 Contra Costa Between Bethel Island and Holland Tract Comment
  CAS-BOT-BC419326  Persicaria punctata Vincent Jones 1920-8-29 s.n. Contra Costa Orrwood Comment
  CDA9188  Petrorhagia dubia Christopher Thayer 1995-6-5 s.n. Contra Costa Carquinez Strait; W of Pinole Peak. 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
  UC691690  Phacelia breweri Mary L. Bowerman 1933-5-2 1953 Contra Costa below Pioneer Camp; Mount Diablo 762 Comment
  UC735070  Phacelia breweri Lincoln Constance, T. Morley, R. H. Shan, and W. H. Wagner 1946-4-26 3034 Contra Costa below Devil's Pulpit; Mount Diablo, Devil's Elbow 1127 Comment
  UC880993  Phacelia breweri Lewis S. Rose 1941-5-15 41239 Contra Costa summit Mt. Diablo 1188 Comment
  CDA1102  Phacelia californica D. G. Kelch, A. G. Murdock 2005-5-1 5 .189 Contra Costa Carquinez Strait; Crockett; Edwards Canyon. Comment
  JEPS2232  Phacelia californica W. L. Jepson 1892-3-19 21043 Contra Costa Portreo Hills Comment
  UC671750  Phacelia californica Lincoln Constance 1940-3-16 2524 Contra Costa margin of San Francisco Bay Point Richmond 15 Comment
  OBI13844  Phacelia californica G. Thomas Robbins, John Weiler 1959-5-23 4027 Contra Costa On W side of Brooks Island, San Francisco Bay, Richmond Comment
  UC672410  Phacelia ciliata var. ciliata Herbert L. Mason 1929-3-31 5139 Contra Costa Briones Road Hills northeast of Mount Diablo Comment
  JEPS2385  Phacelia distans Mary L. Bowerman 1930-6-10 300 Contra Costa Meridian Peak summit Mount Diablo Comment
  JEPS73329  Phacelia distans Edward Lee 1935-3-10 1297 A Contra Costa e Antioch; Antioch Sand Dunes Comment
  CAS-BOT-BC6694  Phacelia distans var. australis Charles Fuller Baker 1903-4-28 2806 Contra Costa Antioch Comment
  JEPS2351  Phacelia divaricata W. L. Jepson 1899-4-19 21019 Contra Costa Las Trampas Ridge Comment
  UC24352  Phacelia divaricata Brewer 1862-5-7 1057 Contra Costa Mt. Diablo Comment
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Sep 7 2009
  UC691703  Phacelia divaricata Mary L. Bowerman 1935-4-26 2897 Contra Costa w Indian Ceremonial Spring (hillside); Mount Diablo 1021 Comment
  RSA276849  Phacelia douglasii James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  JEPS2169  Phacelia imbricata subsp. imbricata W. L. Jepson 1918-6-5 7611 Contra Costa North Peak Mount Diablo 944 Comment
  UC691476  Phacelia nemoralis subsp. nemoralis Mary L. Bowerman 1934-4-21 2537 Contra Costa Muir Area Mount Diablo Comment
  UC691694  Phacelia nemoralis subsp. nemoralis Mary L. Bowerman 1936-5-6 3410 Contra Costa Mitchell Canyon Mount Diablo (by road) 228 Comment
  POM300966  Phacelia nemoralis subsp. nemoralis Mary L. Bowerman 1934-4-21 2537 Contra Costa Muir Area. Comment
  CAS-BOT-BC154333  Phacelia phacelioides John Thomas Howell 1978-5-4 52870 Contra Costa Burned area in chaparral near summit, Mt. Diablo 1066 Comment
  CAS-BOT-BC154335  Phacelia phacelioides L. R. Abrams 1921-5-25 8016 Contra Costa Mt. Diablo on road to summit Comment
  CAS-BOT-BC154337  Phacelia phacelioides Alice Eastwood 1921-6-11 s.n. Contra Costa Mt. Diablo Comment
  JEPS1104  Phacelia phacelioides Mary L. Bowerman 1930-6-7 285 Contra Costa Meridian Peak summit Mount Diablo Comment
  RSA74803  Phacelia phacelioides Mary L. Bowerman 1933-4-26 1923 Contra Costa Mount Diablo, east flank of North Peak 610 Comment
  CAS-BOT-BC154355  Phacelia suaveolens Mary L. Bowerman 1933-5-11 2078 Contra Costa Inner Black Hills: West ridge Comment
  JEPS99570  Phacelia tanacetifolia Mary Bowerman 1991-5-21 Contra Costa Comment
  POM181445  Phalaris lemmonii I. L. Wiggins 1930-4-7 4583 Contra Costa 1/4 mile S of Byron Comment
  CAS-BOT-BC265960  Phalaris minor Mary L. Bowerman 1933-4-15 1849 Contra Costa Canyon south of Arrroyo del Cerro, Mount Diablo Comment
  UC908774  Phlox gracilis R. F. Hoover 1935-3-10 313 Contra Costa Antioch Comment
  UC691715  Pholistoma auritum Mary L. Bowerman 1931-4-18 722 Contra Costa Sycamore Canyon Mt. Diablo, Sycamore Canyon 350 Comment
  PASA2099  Pholistoma membranaceum Annetta Carter 1929-3-31 Contra Costa near Clayton Comment
  CDA23776  Phoradendron macrophyllum D. G. Kelch 2007-10-6 7 .633 Contra Costa Carquinez Strait; Fernandez Ranch. Muir Land Trust Property 4.5 km W of Rodeo. Comment
  CAS-BOT-BC260886  Phragmites australis Walter Knight; Irja Knight 1978-9-5 3230 Contra Costa Browns Island Comment
  CAS-BOT-BC260891  Phragmites australis J. W. Congdon 1893-7-29 s.n. Contra Costa Martinez Comment
  UC650594  Phragmites australis Ira L. Wiggins 1930-4-18 4588 Contra Costa Jersey Island Comment
  CDA21558  Phyla nodiflora D. G. Kelch, Mike Park 2008-9-1 8 .304 Contra Costa Carquinez Strait; Lonetree Point. Rodeo Shoreline Park. Rodeo. Comment
  UC311108  Pickeringia montana var. montana A. D. E. Elmer May, 1903 4315 Contra Costa Mount Diablo Comment
  CDA15276  Picris echioides G. F. Hrusa, D. Crowe, R. York 1998-7-17 14713 Contra Costa Sacramento Delta; E end of Dow Chemical property. Pittsburg. Comment
  UC1077124  Pilularia americana Herbert L. Mason 1932-3-20 6851 Contra Costa Deer Valley Comment
  JEPS46915  Pinus attenuata W. L. Jepson 1923-4-22 9876 Contra Costa Mt. Diablo Comment
  JEPS47895  Pinus attenuata W. L. Jepson 1923-4-22 9876 Contra Costa Mt. Diablo Mt. Diablo (rocky ridge in chaparral) Comment
  UC691929  Pinus attenuata Mary L. Bowerman 1932-3-20 1121 a Contra Costa toward top of middle ridge (in ne fork of creek); Mount Diablo, Inner Black Hills, Sycamore Creek Comment
  SEINET3871793  Pinus attenuata James K. Detling 1963-2-15 4 Contra Costa On Flicker Ridge Trail near Moraga.; 0 107 Comment
  JEPS46810  Pinus coulteri W. L. Jepson 1931-4-5 15726 Contra Costa Nortonville Comment
  UC40358  Pinus coulteri J. G. Lemmon Contra Costa Mitchell Canyon Mt. Diablo Comment
  UC691927  Pinus coulteri Mary L. Bowerman 1931-3-8 565 Contra Costa above Mitchell Rock; Mount Diablo Comment
  JEPS111990  Pinus radiata D. G. Kelch 2005-4-24 05 .176 Contra Costa Franklin Canyon. Collier Hill. West Carbon 16 Comment
  JEPS111992  Pinus sabiniana D. G. Kelch 2004-4-3 04 .47 Contra Costa Martinez - Vine Hill 44 Comment
  JEPS48209  Pinus sabiniana W. L. Jepson 1906-10-12 1750 Contra Costa Pine Canon Mt. Diablo, Pine Canon Comment
  UC400311  Pinus sabiniana State Survey 1866-5-1 Contra Costa Monte del Diablo Comment
  CAS-BOT-BC158327  Piperia unalascensis Alice Eastwood 1915-5-30 4456 Contra Costa Field redacted by CAS, contact the data manager for more information Comment
  JEPS88006  Plagiobothrys acanthocarpus Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8117 Contra Costa ca. 15 air mi. s.w. Stockton (w. & adjacent to Clifton Court Forebay); s.e. Contra Costa Co. Comment
  UC1301084  Plagiobothrys acanthocarpus Helen K. Sharsmith 1963-4-7 5299 Contra Costa near Byron; San Francisco Bay Region 7 Comment
  UC517459  Plagiobothrys bracteatus John Thomas Howell 1933-5-14 11232 Contra Costa St. Mary's College Comment
  UC573067  Plagiobothrys bracteatus H. L. Mason 1928-4-15 4343 Contra Costa top Moraga Ridge Comment
  UC691333  Plagiobothrys bracteatus Mary L. Bowerman 1931-4-4 665 Contra Costa margins of dried-up pond w Turtle Rock; Mount Diablo Comment
  UC79430  Plagiobothrys bracteatus Katharine Brandegee May, 1884 Contra Costa Antioch Comment
  POM226098  Plagiobothrys bracteatus J. T. Howell 1933-5-14 11232 Contra Costa St. Mary s College Comment
  UC2028186  Plagiobothrys bracteatus Barbara Ertter 1998-5-3 16058 Contra Costa Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. Comment
  UC1057488  Plagiobothrys canescens William Hirano 1949-3-29 Contra Costa Byron 50 Comment
  UC517994  Plagiobothrys canescens Lewis S. Rose 1933-3-29 33046 Contra Costa Pittsburg Comment
  UC180104  Plagiobothrys fulvus Harley P. Chandler 1901-3-21 840 Contra Costa s Concord; Lime Ridge Comment
  CHSC67185  Plagiobothrys humistratus James D. Jokerst 1991-3-28 3228 Contra Costa Kellogg Watershed Inundation Zone at enclosure at 'The Windmills,' N of Livermore. Comment
  JEPS116917  Plagiobothrys humistratus David Gowen, Chris Thayer 2009-4-6 983 Contra Costa Cowell Ranch west of dam. Comment
  JEPS68084  Plagiobothrys nothofulvus W. L. Jepson 1923-4-22 9878 a Contra Costa Mt. Diablo Comment
  POM368871  Plagiobothrys nothofulvus H. de Forest 1930-3-28 s.n. Contra Costa Contra Costa County Comment
  UCSC000623  Plagiobothrys nothofulvus R. C. Wilson 1935-3-19 137 Contra Costa 2 mi N.W. of Wall Pt. Wall Pt. - Mt Diablo 335 Comment
  SEINET12275872  Plagiobothrys scouleri H. M. Hall 1901-1 s.n. Contra Costa region of San Francisco Bay, Mt. Diablo, western base Comment
  JEPS127669  Plagiobothrys stipitatus var. micranthus Barbara Ertter with David Gowen and Michael Park 2017-5-2 22799 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  OBI20600  Plagiobothrys stipitatus var. micranthus Robert F. Hoover 1967-4-28 10513 Contra Costa Byron Hot Springs Comment
  OBI20604  Plagiobothrys stipitatus var. micranthus Robert F. Hoover 1967-4-28 10510 Contra Costa Byron Hot Springs Comment
  UC78204  Plagiobothrys stipitatus var. stipitatus K. Brandegee 1889-5-1 Contra Costa Antioch Comment
  SD4240  Plagiobothrys tenellus T. S. Brandegee May 1888 Contra Costa Antioch Comment
  UC24586  Plagiobothrys trachycarpus W. H. Brewer 1862-4-30 1007 Contra Costa Walnut Creek; ; Walnut Creek, Camp 69 Comment
  JEPS116856  Plagiobothrys undulatus David Gowen 2007-4-16 674 Contra Costa Briones Regional Park on foot trail northwest of Maricich Lagoon. Comment
  UC1736692  Plantago bigelovii Dean W. Taylor 1971-4-1 980 Contra Costa junction of Byron Road and Holley Road; vernal pool 7 Comment
  CDA42163  Plantago erecta D. G. Kelch 2004-4-11 4 .062 Contra Costa Carquinez Strait Region; Crockett ; 5th Street Prarie. Comment
  JEPS6441  Plantago erecta W. L. Jepson 1922-5-11 9637 Contra Costa North Berkeley Hills Comment
  POM61262  Plantago erecta C. F. Baker 1903-4-25 2803 Contra Costa Antioch. Comment
  UC691746  Plantago erecta Mary L. Bowerman 1930-6-18 336 Contra Costa upper end Rock City Canyon Mount Diablo, Rock City Canyon Comment
  POM61278  Plantago erecta C. F. Baker 1903-4-28 2828 Contra Costa Marsh Creek, Mt. Diablo. Comment
  UC1950198  Plantago erecta Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8141 Contra Costa sink W and adjacent to Clifton Court Forebay, ca 15 airmiles SW of Stockton Comment
  UC28022  Plantago maritima var. juncoides Jos. Burtt Davy 1900-6-7 6670 Contra Costa near Martinez Comment
  JEPS78614  Plantago subnuda Walter Knight, L. R. Heckard, and Bert Johnson 1978-9-28 3298 Contra Costa Botany Cove, Browns Island Comment
  UC11981  Platanus racemosa F. W. Koch Aug. 1895 Contra Costa Wildcat Creek Comment
  CAS-BOT-BC6458  Platystemon californicus Mary Katherine (Mrs.) Brandegee 1889-4-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC91608  Platystemon californicus James McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  SEINET3160735  Platystemon californicus L. S. Rose 1940-4-11 40189 Contra Costa 2 mi. w. of Byron Comment
  UC101590  Platystemon californicus Katharine Brandegee 1907-5-5 i Contra Costa between Antioch and Marsh Creek (Judsonville) (300 yds along a sandy road back of oldest Coal Mine); between Antioch and Marsh Creek (Judsonville) Comment
  UC2028088  Plectritis ciliosa Barbara Ertter, Tony Morosco 1998-4-12 15985 Contra Costa Base of Mount Olympia on north side of Mount Diablo, south side of lower end of Olympia Trail. Comment
  JEPS5120  Plectritis macrocera Mary L. Bowerman 1931-3-29 621 Contra Costa Mount Diablo, East Cave Point Ridge East Cave Point Ridge; Mount Diablo, East Cave Point Ridge Comment
  UC1818893  Plectritis macrocera Barbara Ertter, Mary Bowerman et al. 1995-5-7 14068 Contra Costa Three-Springs Creek, small serpentine patch at road junction, Comment
  UC28871  Plectritis macrocera Jos. Burtt Davy 1901-4-21 Contra Costa Wildcat Canyon Comment
  UC691522  Plectritis macrocera Mary L. Bowerman 1931-3-29 621 a Contra Costa Mount Diablo, East Cave Point Ridge Mount Diablo; , East Cave Point Ridge Comment
  SEINET199818 Image available Pleuropogon californicus var. californicus P. H. Raven, GT Robbins 1956-4-28 9042 Contra Costa Just east of junction to Martinez along state highway 4. Comment
  CAS-BOT-BC356111  Pluchea odorata Brian Atwater 1978-10-24 BA- 164 Contra Costa Between Bethel Island and Holland Tract Comment
  CDA8486  Pluchea odorata D. G. Kelch, A. G. Murdock 2004-9-2 4 .334 Contra Costa Carquinez Strait Region; Pacheco Marsh. Marsh east of Martinez and I-680 and east of lone tree Marsh. Comment
  UC2028092  Pluchea odorata Barbara Ertter, Chris Thayer 1996-10-25 15380 Contra Costa West side of Mount Diablo, North Gate Road 3 roadmiles below Junction, roadside drainage near Mineral Spring. Comment
  UC485228  Pluchea odorata var. odorata H. M. Hall 1916-8-16 10272 Contra Costa Martinez San Francisco Bay Region Comment
  CDA29001  Poa annua D. G. Kelch 2006-5-7 6 .159 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  UC692471  Poa howellii Mary L. Bowerman 1933-4-22 1897 Contra Costa just w Cave Point; Mt Diablo, Inner Black Hills Comment
  UCD91103  Poa howellii Beecher Crampton 1956-5-14 3396 Contra Costa along Marsh Creek, Morgan Territory, southeast of Mt. Diablo. Comment
  POM300627  Poa howellii Mary L. Bowerman 1933-4-22 1897 Contra Costa Inner Black Hills just west of Cave Point Comment
  SEINET3562517 Image available Poa scabrella Lewis S. Rose 1934-3-13 34055 A Contra Costa Marsh Creek, 2 miles east of Clayton. Comment
  CDA9433  Poa secunda D. G. Kelch 2002-5-2 s.n. Contra Costa Altamont Hills; Corral Hollow Rd. 0 Comment
  CAS-BOT-BC236388  Poa secunda subsp. secunda Mary L. Bowerman 1935-4-26 2924 Contra Costa Mount Diablo. Meridian Peak summit 1143 Comment
  CAS-BOT-BC236395  Poa secunda subsp. secunda D. E. Breedlove 1970-4-18 17551 Contra Costa At the N edge of Lafayette above Laurel Drive 243 Comment
  CAS-BOT-BC236397  Poa secunda subsp. secunda Alice Eastwood 1893-5-3 s.n. Contra Costa Antioch Comment
  UC691181  Poa secunda subsp. secunda Mary L. Bowerman 1932-4-27 1381 Contra Costa s face Oyster Ridge (canyon w of Riggs Canyon); Mt Diablo 335 Comment
  HSC14299  Pogogyne douglasii Leo Koch 1940-6-5 1002 Contra Costa Saline flat 2 mi. S of San Rafael ferry dock Comment
  JEPS107077  Pogogyne serpylloides Barbara Ertter, Lisa Schultheis 1995-4-27 14017 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; head of west facing scrub-filled draw (east of golf-course). Comment
  JEPS111505  Pogogyne serpylloides D. G. Kelch 2005-5-13 05 .267 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Area along Vista Road ~ 2.5 kiloms West of Martinez 45 Comment
  JEPS78820  Pogogyne serpylloides Edward Lee 1936-5-24 2161 Contra Costa Headwaters of Marsh Creek, about 8 miles from Marsh Creek Road, Morgan Territory Comment
  RSA0068483  Pogogyne serpylloides Katie Gallagher, Nick Jensen 2014-4-26 192 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  UC691728  Pogogyne serpylloides Mary L. Bowerman 1938-5-28 3639 Contra Costa North road 5.4 miles from North Gate 457 Comment
  CHSC67525  Pogogyne zizyphoroides Lori May 1990-6-6 Contra Costa E of Bixley Rd., ca. 0.5 mi N of Hwy. 4. Comment
  CHSC67530  Pogogyne zizyphoroides James D. Jokerst 1989-3-28 3065 Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. Comment
  UC1192326  Polygonum amphibium Malcolm A. Nobs and S. Galen Smith 1949-7-7 938 Contra Costa Webb Island Sacramento Delta peat lands Comment
  UC1784185  Polygonum amphibium var. emersum Ethel Crum 1930-9-29 863 Contra Costa Marsh Creek Road to Holt Comment
  UC1795694  Polygonum amphibium var. emersum Barbara Ertter, Kristin Ertter 1995-7-11 14482 Contra Costa West side of Mt Diablo SW of Walnut Creek; dense growth at lower end of Pine Pond, in sun. 182 Comment
  UC1192327  Polygonum amphibium var. stipulaceum Malcolm A. Nobs and S. Galen Smith 1949-7-7 937 Contra Costa Webb Island Sacramento Delta peat lands (edge of drainage ditch) Comment
  POM300597  Polygonum amphibium var. stipulaceum Mary L. Bowerman 1935-7-22 3185 Contra Costa Hidden Pond. 518 Comment
  RSA74882  Polygonum arenastrum Elroy Robinson 1935-9-14 s.n. Contra Costa Martinez Comment
  CDA42732  Polypodium calirhiza A. G. Murdock 2003-2-21 71 Contra Costa Carquinez Strait Region; Martinez; on top of north-facing hill above train tunnel on Mt. Wanda. Comment
  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
  UC1819024  Polypogon interruptus Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14634 Contra Costa Little Pine Creek at northwest foot of Mt. Diablo, along trail connecting North Gate Road to Castle Rock Road, Diablo Foothills Regional Park; along stream above stable, riparian vegetation. 91 Comment
  UC691207  Polypogon interruptus Mary L. Bowerman 1936-8-17 3528 Contra Costa Sulphur Spring in Pine Canyon Mount Diablo; , Pine Canyon, Sulphur Spring 137 Comment
  CAS-BOT-BC233017  Polypogon interruptus L. R. Abrams 1916-6-30 5714 Contra Costa Mount Diablo, near lake Comment
  RSA484484  Polypogon monspeliensis A. A. Beetle 1941-6-24 s.n. Contra Costa Point Richmond on San Francisco Bay. Comment
  UC691205  Polypogon monspeliensis Mary L. Bowerman 1933-6-21 2338 Contra Costa Donner Canyon Mount Diablo; , Donner Canyon 335 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
  UC1925893  Populus fremontii Donald G. Nelson 1937-4-29 514 Contra Costa Road from Pinole south towards Alhambra Road. Comment
  UC406993  Populus fremontii subsp. fremontii Ira L. Wiggins 1930-4-18 4602 Contra Costa se side Jersey Island (Levee bank); se side of Jersey Island Comment
  CDA33072  Potamogeton crispus D. G. Kelch 2010-10-5 10 .427 Contra Costa The Delta.; Antioch shoreline. West of Fulton shipyard. Comment
  CHSC106700  Potamogeton diversifolius Barbara Ertter; Brad Olson 1991-9-28 10839 Contra Costa San Pablo Reservoir between Orinda and El Sobrante, in shallow water at S end of reservoir. 91 Comment
  UC1606300  Potamogeton filiformis Barbara Ertter with Lynne Hosley and Sid Cowles 1992-6-7 11087 Contra Costa pond in quarry E of Round Top; Sibley Volcanic Regional Preserve, Oakland Hills Comment
  CAS-BOT-BC453906  Potamogeton pectinatus Walter Knight; Joanne Dean 1978-8-14 3155 Contra Costa Browns Is. Comment
  JEPS78628  Potamogeton pectinatus Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3295 Contra Costa mouth of Crooked Slough; Browns Island, East Bay Regional Park District Comment
  CAS-BOT-BC143056  Potentilla anserina subsp. pacifica Walter Knight; J. Dean; B. Mortensen; R. Bensler; B. Atwater 1959-4-13 3361 Contra Costa Botany Cove. Brown's Island Comment
  SEINET8355888  Potentilla frondosa E. L. Greene 1889-5-12 Contra Costa Near Maritnez. Comment
  CDA23062  Potentilla glandulosa D. G. Kelch, D. A. Weinstein 2008-4-25 8 .078 Contra Costa Alvarado Park (west end of Wildcat Canyon Park) on north-facing hillside above Hindu temple in mixed scrub/grassland. Comment
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Jan 7 2016
  JEPS46554  Proboscidea G. Thomas Robbins 1959-8-1 4114 Contra Costa roadside berm of frontage road just s Mt. Diablo Blvd. ((about 0.5 mi e of concrete bridge at Charles Hill and about 0.2 mi w of jct. of Hidden Valley Rd.), 2 mi w of Lafayette) 144 Comment
  UCD122075  Proboscidea lutea J. B. Calleri 1930-10-1 2149 Contra Costa Martinez, Cal. Comment
  UC1784904  Prunus avium Barbara Ertter with Dan Norris 1999-10-23 s. n. Contra Costa Huckleberry Botanic Regional Preserve, Oakland Hills, along lower loop trail Comment
  UC2027948  Prunus cerasifera Barbara Ertter 1997-9-7 15791 Contra Costa North side Mount Diablo, cabin site on Donner Creek, in persisting orchard. Comment
  JEPS112091  Prunus lyonii D. G. Kelch 2004-5-9 04 .215 Contra Costa Crockett - Eckley Hills North of Bull Valley Staging Area. Rare 13 Comment
  CAS-BOT-BC154629  Prunus subcordata K. C. 1883-5-1 s.n. Contra Costa Mt. Diablo Comment
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Mar 21 2019
  JEPS112096  Prunus subcordata D. G. Kelch 2005-3-26 05 .99 Contra Costa Pinole Peak Fernandez Ranch. South side - road from Perreria Road to Pinole Peak Ridge 268 Comment
  JEPS44961  Prunus subcordata W. L. Jepson 1923-6-10 9991 Contra Costa Mount Diablo, Upper Marsh Creek Upper Marsh Creek; Mount Diablo, Upper Marsh Creek Comment
  UC691157  Prunus subcordata Mary L. Bowerman 1931-4-5 674 Contra Costa between rocky point below Gregory Ranch and road below Mount Diablo Comment
  UC1128479  Prunus virginiana var. demissa R. W. Lundh 1932-9-3 158 Contra Costa 1 mi n of North Peak 609 Comment
  UC691824  Pseudognaphalium californicum Mary L. Bowerman 1935-5-30 3089 Contra Costa Eagle Point ridge 320 Comment
  UC1618328  Pseudognaphalium luteoalbum Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10701 Contra Costa w end of island n Pittsburg (near confluence of Sacramento and San Joaquin river opposite Pittsburg Marina); Browns Island Comment
  CAS-BOT-BC357594  Pseudognaphalium stramineum Walter Knight; I. Knight; J. T. Howell; E. McClintock; S. Rae; B. Doyle 1978-9-5 3237 Contra Costa Browns Island Comment
  CAS-BOT-BC361693  Psilocarphus brevissimus var. brevissimus Herbert L. Mason 1952-4-14 14266 Contra Costa Vernal Pool 3.5 miles south of Byron Comment
  CAS-BOT-BC361831  Psilocarphus oregonus J. H. Thomas 1953-4-25 3000 Contra Costa 2 miles SW of Brentwood Comment
  JEPS111756  Psilocarphus tenellus D. G. Kelch 2005-5-1 05 .204 Contra Costa Crockett - Edwards Canyon 100 Comment
  UC2029123  Psilocarphus tenellus Barbara Ertter with David Gowen 2012-4-19 21319 Contra Costa Diablo Foothills Regional Park southeast of Walnut Creek, north end Hanging Valley Trail. Comment
  UC694145  Psilocarphus tenellus H. L. Mason 1932-4-24 6964 Contra Costa Marsh Creek Road 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
  UC2027817  Psilocarphus tenellus var. tenellus Barbara Ertter with Stu Garrett 1997-3-29 15535 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  RSA138624  Ptelea angustifolia Katherine Brandegee 1907-6-16 137 Contra Costa Antioch Comment
  RSA77085  Ptelea baldwinii subsp. crenulata Alice Eastwood, John T. Howell 1936-4-19 2134 Contra Costa Nortonville. Comment
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Aug 27 2011
  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-BC148636  Ptelea crenulata W. W. Carruth 1903-5-10 s.n. Contra Costa Mitchell Canyon, Mt. Diablo Comment
  JEPS40171  Ptelea crenulata W. L. Jepson 1923-6-10 9993 Contra Costa Upper Marsh Creek; Mt. Diablo Comment
  JEPS40172  Ptelea crenulata W. L. Jepson 1907-4-27 2648 Contra Costa Mt. Diablo Comment
  UC17375  Ptelea crenulata F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  UCD102396  Ptelea crenulata Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Bald Ridge Trail. Bald Ridge. 860 Comment
  CAS-BOT-BC148618  Ptelea crenulata J. F. Emmel 1971-8-22 384 Contra Costa Kirker Creek ca. 0.2 air mile S. of site of Nortonville 251 Comment
  UCSB4881  Ptelea crenulata Keator, Glenn 1959-7-1 Contra Costa Laurel camp on Mt. Diablo Comment
  CAS-BOT-BC421113  Pterostegia drymarioides Alice Eastwood 1915-5-30 4436 Contra Costa Mt. Diablo Comment
  UC1198069  Pterostegia drymarioides Joseph P. Tracy 1934-4-30 13191 Contra Costa near Lafayette 152 Comment
  UCD100927  Pterostegia drymarioides P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UCD35992  Pterostegia drymarioides Beecher Crampton 1949-4-1 422 Contra Costa Contra Costa County, Moraga Ridge. 60 Comment
  JEPS95248  Quercus Steve Edwards 1995-10-20 Contra Costa Round Top, W flank Robert Sibley Volcanic Regional Preserve Comment
  JEPS28855  Quercus X morehus James B. Roof, Irja Knight 1962-2-21 Contra Costa Moraga Ridge Comment
  UC691319  Quercus X morehus Mary L. Bowerman 1931-9-27 1046 Contra Costa n side North Peak (near Quicksilver Mine); Mount Diablo 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-BC45659  Quercus agrifolia Alice Eastwood 1914-2-24 3733 Contra Costa Antioch Comment
  JEPS37717  Quercus agrifolia W. L. Jepson 1907-4-26 2648 b Contra Costa Mt. Diablo Comment
  UC691315  Quercus agrifolia Mary L. Bowerman 1931-9-27 1049 Contra Costa ne side North Peak; Mount Diablo Comment
  UC691295  Quercus berberidifolia Mary L. Bowerman 1933-6-21 2341 Contra Costa Median Ridge (Donner Canyon) 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
  CAS-BOT-BC86642  Quercus douglasii Brandegee s.n. Contra Costa unspecified Comment
  JEPS37390  Quercus douglasii W. L. Jepson 1898-10-18 Contra Costa Deer Flat Mt. Diablo Comment
  UC521666  Quercus douglasii Joseph Andorfer Ewan 1933-10-15 8028 Contra Costa Mt. Diablo 1066 Comment
  CAS-BOT-BC86122  Quercus dumosa Mary L. Bowerman 1932-1-23 1078 Contra Costa Mount Diablo. Knoll W of knoll between Sycamore Ridge and 1920 point Comment
  POM301005  Quercus durata Mary L. Bowerman 1932-10-16 1632 Contra Costa Donner Canyon Trail. Comment
  UC1135558  Quercus durata N. French 1935-7-25 645 Contra Costa Mt. Diablo Mt. Diablo Quad. 670 Comment
  UC691299  Quercus durata Mary L. Bowerman 1932-10-16 1632 Contra Costa Donner Canyon trail Mount Diablo Comment
  OBI14287  Quercus durata var. durata H. E. McMinn 22-Oct 408 Contra Costa Mitchell Cyn-Mt. Diablo Comment
  CHSC83237  Quercus garryana E. Dean; M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 656 Contra Costa Mount Diablo State park, Fossil Ridge, along fire road that begins at the parking lot southeast of Rock City and climbs onto Fossil Ridge in southeasterly direction, ca. 0.1 mile from Rock City, slightly downslope of road. 487 Comment
  UCD17436  Quercus garryana E. Dean; M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 658 Contra Costa California. Contra Costa County: Mount Diablo State park, Fossil Ridge, along fire road that begins at the parking lot southeast of Rock City and climbs onto Fossil Ridge in southeasterly direction, ca. 0.1 mile from Rock City, slightly downslope of road. 487 Comment
  CAS-BOT-BC94292  Quercus garryana Mary L. Bowerman 1935-11-30 3351 Contra Costa In draw SW of Gibraltar Rock, Fossil Ridge Comment
  UC639150  Quercus kelloggii Annetta Carter 1939-11-18 Contra Costa between Orinda andf Moraga Comment
  SEINET12034573  Quercus kelloggii M. T. Doutt 1930-1 83 Contra Costa Marsh Creek Comment
  UC5602  Quercus kelloggii unknown Contra Costa Comment
  UCD17142  Quercus parvula var. shrevei E. Dean; with B. Ertter, J. M. Tucker, and K. Chaney 2000-9-13 650 Contra Costa California. Contra Costa County: City of El Sobrante; El Sobrante Ridge, upslope of the terminus of Heavenly Ridge Rd., junction of Heavenly Ridge Trail and Manzanita Trail. 213 Comment
  JEPS37967  Quercus wislizeni W. L. Jepson 1907-4-26 2647 Contra Costa Mt. Diablo Comment
  UC1135852  Quercus wislizeni R. C. Wilson 1935-3-13 127 Contra Costa 1.5 mi w Cave Pt.; Mt. Diablo Quad. 563 Comment
  UC1543000  Quercus wislizeni Donald G. Nelson 1938-11-6 586 Contra Costa about 1 mi beyond Marsh Creek Springs (road cut in Marsh Creek Highway, ne of Mt. Diablo) Comment
  UC5689  Quercus wislizeni unknown 78 Contra Costa Summit Mt. Diablo Comment
  UC691297  Quercus wislizeni Mary L. Bowerman 1933-9-30 2449 Contra Costa e end Meridian Flat; Mount Diablo 807 Comment
  CAS-BOT-BC362444  Rafinesquia californica Alice Eastwood 1923-5-4 11720 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC362446  Rafinesquia californica Volney Rattan 1887-5-22 s.n. Contra Costa Alhambra Val. Comment
  UC2028388  Ranunculus aquatilis var. diffusus Barbara Ertter with Tony Morosco 1998-7-11 16365 Contra Costa North base of Mount Diablo, small pond on north side of Bruce Lee Road east of Mitchell Canyon staging area Comment
  RSA224309  Ranunculus aquatilis var. hispidulus Mary L. Bowerman, Walter Knight, I. Knight 1968-6-4 2331 Contra Costa floating on Frog Pond Mt. Diablo State Park Comment
  CDA29216  Ranunculus californicus D. G. Kelch 2006-5-7 6 .147 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  JEPS60666  Ranunculus californicus W. L. Jepson 1923-4-22 9871 Contra Costa Mt. Diablo; deep canyon side Comment
  POM194560  Ranunculus californicus Eugene Memmler 1929-4-21 2377 Contra Costa Moraga Valley Comment
  UC692186  Ranunculus canus Mary L. Bowerman 1930-6-5 246 Contra Costa North Road 5.8 mi from entrance to park (near a stream in canyon); Mount Diablo Comment
  RSA0027697  Ranunculus canus Barbara J. Ertter, Stu Garrett 1997-3-29 15523 Contra Costa West side Mount Diablo, Burma Road above North Gate Road. Comment
  UC2027716  Ranunculus canus Barbara Ertter with Stu Garrett 1997-3-29 15523 Contra Costa West side Mount Diablo, Burma Road above North Gate Road. Comment
  UC9445  Ranunculus hebecarpus Geol. Survey 1862-1 1049 Contra Costa Mt. Diablo; foothills 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
  UC2062667  Rhamnus alaternus Barbara Ertter with David Gowen 2006-4-14 18667 Contra Costa Lime Ridge Open Space (City of Concord) at NW foot of Mount Diablo, SE side of Ygnacio Valley Road. Comment
  UC33654  Rhamnus californica subsp. californica J. Burtt Davy 1891-11-25 Contra Costa Wildcat Canyon Comment
  UC692598  Rhamnus tomentella subsp. tomentella Mary L. Bowerman 1933-5-21 2151 Contra Costa s of Curry Canyon (Grapevine Spring gulley, slightly above the spring); Mount Diablo Comment
  UC1479602  Rhaponticum repens Ken Stevens 1980-6-1 Contra Costa 1/4 mi w of, along hwy 4 Discovery Bay Comment
  CAS-BOT-BC200697  Rhus aromatica Mary L. Bowerman 1935-5-30 3092 Contra Costa Eagle Point ridge 350 Comment
  CAS-BOT-BC200695  Rhus aromatica Peter H. Raven; H. L. Mason; R. Ornduff; et al. 1957-4-11 10625 Contra Costa Curry Canyon, 4.0 mi. s. of Recreation Ground Comment
  JEPS111590  Rhus trilobata D. G. Kelch 2005-3-26 05 .98 Contra Costa Pinole Peak Fernandez Ranch. South side - road from Perreria Road to Pinole Peak Ridge. Rare shrub up to 1.5 ms 150 Comment
  UC692576  Rhus trilobata Mary L. Bowerman 1935-5-30 3092 Contra Costa Eagle Point Ridge; Mount Diablo 350 Comment
  JEPS104681  Ribes John L. Morrison 1937-4-11 2101 Contra Costa Along a small tributary running into Wildcat Creek, about 1 mi below the C.C.C Camp Comment
  JEPS49753  Ribes californicum Rimo Bacigalupi, and Alice Howard, and Paul Hutchison 1967-3-29 9223 Contra Costa 1/4 m above road leading to Nike Station (beside Bolinger Creek) 335 Comment
  CAS-BOT-BC92923  Ribes californicum var. californicum Carl Meyer 1928-2-22 285 Contra Costa Mount Diablo. Comment
  JEPS100039  Ribes californicum var. californicum S. O'Neil 2003-2-25 SEO 9 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CHSC20642  Ribes divaricatum Carol C. Getzinger 1964-4-26 51 Contra Costa Wildcat Canyon Road 1.3 miles from junction with Spruce Street and Grizzly Peak Boulevard. 152 Comment
  UC69857  Ribes divaricatum var. pubiflorum H. M. Hall 1900-3-24 Contra Costa Bear Creek San Francisco Bay Region Comment
  RSA0025008  Ribes divaricatum var. pubiflorum H. P. Chandler 1900-3-17 s.n. Contra Costa Wildcat Canyon, Berkeley Hills. Comment
  UC2027990  Ribes divaricatum var. pubiflorum Barbara Ertter 1998-4-19 16028 Contra Costa Tilden Regional Park, Wildcat Creek Trail to Jewel Lake. Comment
  CAS-BOT-BC168921  Ribes malvaceum L. R. Abrams 1921-5-25 8060 Contra Costa Near summit Mt. Diablo Comment
  CAS-BOT-BC206018  Ribes menziesii John Thomas Howell 1942-4-26 16951 Contra Costa Oakland Hills near Redwood Peak Comment
  JEPS111987  Ribes menziesii D. G. Kelch 2005-3-25 05 .80 Contra Costa Fernandez Ranch Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak. 150 Comment
  UC692436  Ribes menziesii Mary L. Bowerman 1932-9-3 1541 Contra Costa Meridian Peak summit, by trail leading s from the house Mount Diablo Comment
  SEINET5339680  Ribes menziesii var. leptosmum P. Del Monte 1976-3-28 s.n. Contra Costa Morgan territory road, 1 mile from junction with Marsh creek road 122 Comment
  UC2070465  Ribes quercetorum Barbara Ertter 2003-3-28 18112 Contra Costa Round Valley Regional Preserve, Miwok Trail at east end of Round Valley Creek. Comment
  LA205508  Ribes sanguineum Joseph Andorfer Ewan; 1934-3-10 8650 Contra Costa Wildcat Canyon, 1.5 mi. below Orinda road bridge 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
  SBBG98261  Ribes sanguineum var. glutinosum J. A. Ewan 1934-3-10 8650 Contra Costa Wildcat Cyn, 1.5 mi below Orinda Rd bridge Comment
  CDA7895  Ricinus communis D. G. Kelch, A. G. Murdock 2004-7-9 4 .316 Contra Costa Carquinez Strait Region; Rodeo Shoreline. Comment
  CAS-BOT-BC362963  Rigiopappus leptocladus Brandegee 1889-5-1 s.n. Contra Costa Antioch Comment
  UC697165  Rigiopappus leptocladus Mary L. Bowerman 1933-5-10 2061 Contra Costa ridge at e end and s Meridian Flat; Mount Diablo 822 Comment
  CAS-BOT-BC362965  Rigiopappus leptocladus Brandegee No date on label s.n. Contra Costa Antioch Comment
  UC1818896  Rigiopappus leptocladus Barbara Ertter, Mary Bowerman et al. 1995-5-7 14063 Contra Costa Three-Springs Trail on NE side of Mt. Diablo SE of Clayton, small serpentine patch at road junction Comment
  UC1050828  Romneya coulteri N. Floy Bracelin 1941-6-1 1344 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC2028024  Rorippa curvisiliqua Barbara Ertter 1997-9-14 15809 Contra Costa West side of Mount Diablo, ponds along Barbeque Terrace Road in upper Pine Canyon. Comment
  CHSC116620  Rorippa palustris var. occidentalis Lowell Ahart; Josephine Guardino 2016-4-19 20771 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Below the high water line of Los Vaqueros Reservoir, 1.4 miles northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  CAS-BOT-BC147407  Rosa californica Peter H. Raven 1957-7-5 11053 Contra Costa Point Isabel Comment
  UC691162  Rosa californica Mary L. Bowerman 1930-6-26 375 Contra Costa junction of Riggs Canyon Rd and Livermore Road; Mount Diablo Comment
  UCD113415  Rosa californica John Thomas Howell; Gordon H. True 1972-6-29 48930 Contra Costa Byron Hot Springs Road, SE of Byron. Comment
  JEPS99977  Rubus ursinus G. Smick 2003-6-6 GAS 212 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS112015  Rumex acetosella Dean G. Kelch and Andrew G. Murdock 2004-3-19 AGM 225 Contra Costa Luzon. Sycamore Ave. just east of Rodeo/Hercules where train crosses Hwy 4 (Luzon). Comment
  JEPS75495  Rumex acetosella P. F. Yorks 1976-5-31 510 Contra Costa ca 1.4 km s Bear Creek Road (on Hampton Road in Hampton Road Natural Reserve, n of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  UC1618384  Rumex conglomeratus Barbara Ertter, Diane Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10698 Contra Costa opposite of Pittsburg Marina (in center of w end of Browns Island n of Pittsburg near confluence of Sacramento and San Joaquin Rivers); Browns Island Comment
  CDA22902  Rumex crispus D. G. Kelch 2006-7-14 6 .33 Contra Costa Carquinez Strait; Along Marine Vista Ave immmediately west of Pacheco Slough. East of Martinez. Comment
  CHSC116601  Rumex dentatus Lowell Ahart; Jpsephine Guardino 2016-4-19 20783 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. 1.4 miles northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  UC2062666  Rumex maritimus Barbara Ertter with David Gowen 2006-10-1 18781 Contra Costa West side San Pablo Reservoir east of San Pablo Dam Road between Richmond and Orinda, south of marina. Comment
  CDA34275  Rumex pulcher D. G. Kelch 2009-5-24 9 .299 Contra Costa Carquinez Strait; S of Ozol, W/SW of Martinez. Comment
  UCD101458  Rumex pulcher G. Thomas Robbins; John Weiler 1959-5-23 4032 Contra Costa About 1/2 mile east of Pt. San Pablo, overlooking San Pablo Bay, Richmond. 7 Comment
  CDA35214  Ruta chalepensis F. Brucato & G. Sorensen 1964-5-6 s.n. Contra Costa Brentwood, Deer Valley Road. 0 Comment
  SEINET11268191  Salicornia europaea Barbara Ertter 1990-9-30 9656 Contra Costa Point Pinole Regional Shoreline, edge of sparina marsh at edge of salicornia marsh on SW corner of park; edge of San Pablo Bay.; 0 Comment
  SEINET1910270  Salicornia virginica Barbara Ertter, Elizabeth Neese 1988-1 7974 Contra Costa Salicornia marsh W of I-580 in El Cerrito, W side along Rydin Road N of Central Avenue. Comment
  CAS-BOT-BC129913  Salix bonplandiana J. Burtt Davy 1895-4-13 1005 Contra Costa Near Lafayette. Comment
  CAS-BOT-BC129915  Salix bonplandiana Mary L. Bowerman 1933-3-25 1760 Contra Costa Canyon back of Diablo Stock Farm (Stone Valley), in streambed - Mount Diablo Comment
  CAS-BOT-BC107874  Salix gooddingii A. A. Heller 1908-4-16 8886 Contra Costa Antioch 12 Comment
  UC692054  Salix laevigata Mary L. Bowerman 1935-5-30 3085 Contra Costa by Donner Canyon stream Mt. Diablo 161 Comment
  CDA39557  Salix lasiolepis D. G. Kelch 2005-3-11 5 .038 Contra Costa Carquinez Strait Region; Martinez - Franklin Hills. Carquinez Shoreline EBRP. West of Martinez High School. Comment
  UC499339  Salix lasiolepis Mary L. Bowerman 1933-3-25 1777 Contra Costa back of Diablo Stock Farm; Stone Valley, Emmons<?> Canyon 274 Comment
  CAS-BOT-BC129598  Salix lasiolepis var. lasiolepis Mary L. Bowerman 1932-11-19 1650 Contra Costa Pioneer Camp: along stream from the spring - Mount Diablo Comment
  UC1607511  Salpichroa origanifolia Barbara Ertter 1991-5-12 9818 Contra Costa Point Isabel Regional Shoreline in SW corner of El Cerrito, on San Francisco Bay Comment
  UCR265174  Salpichroa rhomboidea Barbara Ertter 1991-5-12 9818 Contra Costa Central Coast, Point Isabel Regional Shoreline in southwest corner of El Cerrito, on San Francisco Bay; along old railroad right-of-way between bay and Salicornia marsh. 4 Comment
  CDA37041  Salsola australis P. Akers 2003-10-7 B 107 Contra Costa San Joaquin Valley; Contra Costa water district, E edge of Discovery Bay on Hwy 4. 7 Comment
  JEPS79009  Salsola tragus Edward Lee with Annetta Carter 1935-8-17 1618 Contra Costa just e. Antioch Comment
  UC41510  Salsola tragus L. L. Guss 1900-6-1 Contra Costa Antioch Comment
  JEPS62550  Salvia carduacea Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  UC25708  Salvia columbariae W. L. Jepson May 23 1894-May 24 1894 Contra Costa Mt. Diablo; Mount Diablo Region Comment
  CAS-BOT-BC233291  Salvia mellifera Alice Eastwood 1923-5-4 11726 Contra Costa Mt. Diablo Comment
  JEPS49757  Salvia mellifera Rimo Bacigalupi and Alice Howard and Paul Hutchison 1967-3-29 9219 Contra Costa 0.5 mi se head of Bolinger Creek (on w slope of Las Trampas Ridge, in Bolinger Creek drainage); Las Trampas Ridge, Bolinger Creek 390 Comment
  SEINET3224512 Image available Salvia mellifera Lewis S. Rose 1941-3-22 41057 Contra Costa Mt. Diablo. 610 Comment
  UC25730  Salvia mellifera H. N. Bolander Apr 1866 6317 Contra Costa Mount Diablo Comment
  SEINET12273224  Salvia mellifera M. T. Doutt 1930-1 89 Contra Costa Marsh Creek Comment
  CAS-BOT-BC238631  Sambucus nigra subsp. caerulea Alice Eastwood 1921-4-18 10281 Contra Costa Antioch Comment
  JEPS121564  Sambucus nigra subsp. caerulea Adam C. Schneider 2013-10-12 317 Contra Costa Briones Regional Park, along north side of Beark Creek Trail, about 3/4 mile east of Oak Grove campground. 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
  UC1191697  Samolus parviflorus Malcolm A. Nobs, S. Galen Smith 1949-7-8 948 Contra Costa 4 mi n of Kingston (Otto's Black Bass Resort); Otto's Black Bass Resort Comment
  CAS-BOT-BC223246  Sanicula bipinnata Brandegee No date on label s.n. Contra Costa Antioch 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
  JEPS12783  Sanicula bipinnata Rimo Bacigalupi with G. T. Robbins 1955-5-4 4976 Contra Costa s of and above Nortonville (site) 304 Comment
  SEINET10545764  Sanicula bipinnata John T. Middleton 1936-4-18 Middleton 146 Contra Costa Comment
  RSA471438  Sanicula bipinnatifida Joseph A. Ewan 1936-4-19 9464 Contra Costa W. slope of Wildcan Canyon 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
  OBI70552  Sanicula crassicaulis D. G. Kelch, D. A. Weinstein 2008-4-25 8 .082 Contra Costa Alvarado Park (W end of Wildcat cyn park) on N facing hillside above Hundu temple i 122 Comment
  LA33017  Sanicula saxatilis Lincoln Constance; T. Morley, Ren Hwa. Shan, W. H. Wagner 1946-4-26 3036 Topotype Contra Costa Mount Diablo, summit SW of lookout 1158 Comment
  UC666653  Sanicula saxatilis John Thomas Howell 1942-5-24 16969 Contra Costa Mount Diablo, Eagle Peak Mount Diablo; , Eagle Peak Comment
  UC691879  Sanicula saxatilis Mary L. Bowerman 1931-4-25 768 Contra Costa Mount Diablo summit, little northwest of house Mount Diablo Comment
  UC691877  Sanicula tuberosa Mary L. Bowerman 1931-4-19 743 Contra Costa Mount Diablo, Upper Deer Flat Upper Deer Flat; Mount Diablo, Upper Deer Flat Comment
  UC73326  Sanicula tuberosa Chesnut and Drew 1889-4-17 Contra Costa Clayton Comment
  UC2029042  Sanicula tuberosa Barbara Ertter 2000-3-19 16895 Contra Costa Southwest side of Mount Diablo, Secret Trail between Barbecue Terrace Road and Wall Point Road. Comment
  SEINET238193 Image available Sasa borealis Beecher Crampton 1966-10-18 7815 Contra Costa CULTIVATED ; Kensington Berkeley Hills Blake Garden UC Berkeley Dept. of landscape architecture. Comment
  SEINET238194 Image available Sasa borealis Beecher Crampton 1966-10-18 7815 Contra Costa CULTIVATED ; Kensington Berkeley Hills Blake Garden UC Berkeley Dept. of landscape architecture. Comment
  JEPS100052  Satureja douglasii G. Smick 2003-6-6 GAS 213 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS48656  Saxifraga californica Elsa Kraeger 1926-3-7 Contra Costa at Toll Gate on way to Mount Diablo Comment
  UC1949225  Scandix pecten-veneris Barbara Ertter 1991-6-1 10072 Contra Costa Las Trampas Regional Wilderness in hills W of Danville; Rocky Ridge Trail ca 1 mi from parking lot Comment
  UCD128067  Scandix pecten-veneris Morris Halperin 1929-4-21 s.n. Contra Costa Morago Valley. Comment
  CAS-BOT-BC283604  Schedonorus pratensis Barrett Anderson 1987-4-29 3485 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD 125 Comment
  CAS-BOT-BC111379  Schoenoplectus acutus var. occidentalis LeRoy Abrams 1916-7-29 6304 Contra Costa Martinez Comment
  CAS-BOT-BC111465  Schoenoplectus californicus Walter Knight; Joanne Dean 1978-8-14 3189 Contra Costa Browns Island Comment
  CDA32272  Scirpus maritimus G. F. Hrusa, D. Crowe 1998-5-8 14366 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg. Comment
  CDA39143  Scirpus microcarpus D. G. Kelch 2004-7-9 4 .308 Contra Costa Carquinez Strait; Martinez; Alhambra Creek, near Muir gravesite. Arroyo del Hambre. Comment
  JEPS95254  Scutellaria californica Steve Edwards 1991-7-15 Contra Costa Siesta Valley, E side, N of Hwy. 24 Comment
  UC1606369  Scutellaria tuberosa Barbara Ertter, Brad Olson 1992-4-13 10952 Contra Costa 1 mi from Curry Point (Mount Diablo State Park, Knobcone Point Road); Mount Diablo State Park, Knobcone Point Road 487 Comment
  UC1713665  Scutellaria tuberosa C. Epling, D. Stebbins 1940-5-4 Contra Costa Moraga Ridge Comment
  UC536014  Scutellaria tuberosa Laurence S. Jones 1934-4-8 56 Contra Costa approximately 3 mi surface distance from peak of Mount Diablo 609 Comment
  UC2029001  Scutellaria tuberosa Barbara Ertter 2000-3-30 16920 Contra Costa North side of Mount Diablo, in chaparral near base of Back Canyon Trail. Comment
  UC2029119  Scutellaria tuberosa Barbara Ertter with Dan Norris 2001-4-8 17585 Contra Costa Lime Ridge Open Space east of Walnut Creek. Comment
  JEPS99566  Sedum radiatum Mary Bowerman 1975-6-1 Contra Costa Mount Diablo, (probably along Falls Trail). Comment
  UC2028051  Sedum radiatum Barbara Ertter with Ann Dennis 1998-1-25 15909 Contra Costa Donner Canyon on north side Mount Diablo, Middle Trail/Falls Trail. Comment
  JEPS111705  Senecio aronicoides D. G. Kelch 2004-5-2 04 .175 Contra Costa Crockett - Edwards Canyon 112 Comment
  JEPS37619  Senecio aronicoides W. L. Jepson 1923-6-10 9992 Contra Costa Upper Marsh Creek Mt. Diablo Comment
  OBI75155  Senecio aronicoides David J. Keil 2011-5-29 31036 Contra Costa Mount Diablo State Park. Vicinity of Juniper Campground 900 Comment
  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
  UCD102385  Senecio aronicoides Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. North Peak Road to North Peak. 890 Comment
  CAS-BOT-BC363750  Senecio integerrimus Rimo Bacigalupi 1926-4-30 1352 Contra Costa Summit of Mt Diablo Comment
  UC691361  Senecio sylvaticus Mary L. Bowerman 1933-5-11 2071 Contra Costa most westerly part of 1931 burn Mount Diablo, Inner Black Hills (Mount Diablo, Inner Black Hills) Comment
  JEPS48264  Sequoia sempervirens K. D. Jones 1908-4-5 Contra Costa Redwood Peak Comment
  CDA37401  Sesbania punicea D. G. Kelch, Mike Perlmutter 2011-9-23 11 .764 Contra Costa Antioch. Dow Wetlands. Comment
  CAS-BOT-BC384441  Silene antirrhina Kellogg No date on label s.n. Contra Costa Mt Diablo Comment
  JEPS111790  Silene gallica D. G. Kelch 2005-4-24 05 .168 Contra Costa Franklin Canyon. Collier Hill. West Carbon 60 Comment
  JEPS99539  Silene gallica Mary L. Bowerman 1976-6-24 Contra Costa Mount Diablo, Fire trail from crest of Inner Black Hills to Sycamore Creek. Comment
  CDA28920  Silybum marianum D. G. Kelch, Troy MacGregor 2009-5-24 9 .297 Contra Costa Carquinez Strait; Carquinez Loop Trail S of Ozol, S-SW of Martinez, nr Wolcott Ln . Comment
  SEINET4015801 Image available Silybum marianum B. C. Templeton 1962-1 sn Contra Costa On the road to Mt. Diablo. Comment
  UC10272  Sinapis alba F. T. Bioletti 1892-1 Contra Costa Byron Comment
  CAS-BOT-BC74938  Sinapis arvensis R. E. Frenkel 1964-2-3 345 Contra Costa On Tassajara Road, 2.1 mile east of Danville. 129 Comment
  SEINET12764843  Sinapis arvensis Barbara Ertter 1998-4-4 15959 Contra Costa Northwest of Mount Diablo, west base of northwestern-most ridge, around old orchard.; 0 Comment
  SFV1416  Sinapis arvensis L. B. Hendrix 1962-4-22 21 Contra Costa Walnut Creek, Sun Valley Drive. Comment
  UCD115406  Sinapis arvensis Jennifer Davies 1982-4-11 2 Contra Costa 1 mile NW of South Checking Station on South Gate Road, Mt. Diablo. 487 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
  UC691256  Sisymbrium officinale Mary L. Bowerman 1935-5-16 2987 Contra Costa Mount Diablo, Russelman Park Russelman Park; Mount Diablo, Russelman Park 381 Comment
  CHSC24841  Sisyrinchium bellum M. A. Callahan 1976-4-15 17 Contra Costa Top of ridge ca. 145m e of house at 1976 Mohawk Dr. Pleasant Hill. 152 Comment
  UC692093  Sisyrinchium bellum Mary L. Bowerman 1931-3-14 573 Contra Costa e side Cave Point; Mount Diablo Comment
  JEPS77013  Smilacina stellata Robert M. Lloyd 1963-3-17 2140 Contra Costa 0.5 mi e intersection of Grizzly Peak Rd. and Skyline Drive (on Skyline (across from 7090 Skyline)); Huckleberry Trail 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
  CAS-BOT-BC156304  Solanum umbelliferum D. D. Keck 1933-11-2 2619 Contra Costa 1 mi. S.E. of Oakley Comment
  CAS-BOT-BC83606  Solanum umbelliferum J. McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  JEPS75486  Solanum umbelliferum P. F. Yorks 1974-3-22 118 Contra Costa 1.8 km s of Bear Creek Road on Hampton Road (in Hampton Road Natural Reserve, n of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  UC1125032  Solanum umbelliferum R. W. Lundh 1932-8-25 142 Contra Costa Mount Diablo 838 Comment
  CAS-BOT-BC156306  Solanum umbelliferum anonymous 1900-3-26 s.n. Contra Costa Oakley. 6 m. E. of Antioch Comment
  POM204481  Solanum umbelliferum J. T. Howell 1933-5-14 11291 Contra Costa Hills east of St. Mary's college Comment
  UCD127020  Solanum umbelliferum Laurence S. Jones 1934-4-8 s.n. Contra Costa Mount Diablo. 609 Comment
  UC1051129  Solanum xanti N. Floy Bracelin 1945-7-22 2583 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CDA8722  Solidago californica A. G. Murdock, D. G. Kelch 2003-9-12 198 Contra Costa Carquinez Strait Region; Crockett - Tormey Headlands. Along trail to Superfund overlook. Comment
  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
  CAS-BOT-BC236609  Spartina foliosa Evelina Cannon 1900-9-17 s.n. Contra Costa Giant Station Comment
  UC1795711  Spartium junceum Barbara Ertter, Gary Schoolcraft 1996-4-7 14582 Contra Costa Molate Beach Park on San Francisco Bay north of San Rafael Bridge; entrance to Western Drive from I-580 east of toll station on San Rafael-Richmond Bridge, road bank Comment
  UC1948951  Spergula arvensis William J. Ferlatte, L. Maynard Moe 1970-4-27 1256 Contra Costa San Francisco Bay: Red Rock Island 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
  OBI17382  Spergularia macrotheca Robert F. Hoover 1967-4-28 10514 Contra Costa Byron Hot Springs Comment
  NY482313  Spergularia macrotheca B. J. Ertter 1990-10-14 9661 Contra Costa Point Isabel Regional Shoreline on San Francisco Bay in sw El Cerrito Comment
  CDA24126  Spergularia macrotheca var. longistyla D. G. Kelch 1992-3-21 1828 -A Contra Costa 2.5 mi. SE of Byron; along RR tracks, N of junction of Holey Rd. and Byron Hwy. 0 Comment
  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
  JEPS111787  Spergularia macrotheca var. macrotheca D. G. Kelch 2005-3-24 05 .48 Contra Costa Point Pinole Pt. Pinole near wharf 2 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
  UC2032850  Spergularia marina Doran, Andrew Scott 2012-3-20 721 Contra Costa Northeast part of Brooks Island, on trail to beach along spit. Comment
  UC2027786  Spergularia marina Barbara Ertter with John Ginochio and Mary Bowerman 2001-5-8 17630 Contra Costa Northwest flank of Mount Diablo, tributary of Galindo Creek on south side of knoll SW of Mount Zion. Comment
  CAS-BOT-BC390536  Spergularia media Lewis S. Rose 1941-3-17 41034 Contra Costa 3 mi. s. of Byron 6 Comment
  UCR263550  Spergularia rubra Barbara Ertter, D. H. Norris 1999-11-14 16852 Contra Costa San Francisco Bay Region, Black Diamond Mines Regional Preserve, south of parking area for Somersville townsite 223 Comment
  RSA0098111  Spergularia rubra Mary L. Bowerman 1975-4-19 s.n. Contra Costa Mount Diablo. Mitchell Canyon. 256 Comment
  JEPS2868 Image available Sphaeralcea fasciculata var. elmeri A. D. E. Elmer May 1903 4395 Contra Costa Mount Diablo. Comment
Read comments
Jun 12 2012
  CDA22505  Stachys ajugoides var. rigida D. G. Kelch, D. A. Weinstein 2008-4-25 8 .077 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
  RSA762305  Stachys ajugoides var. rigida William J. Ferlatte, L. M. Moe 1970-4-27 1224 Contra Costa San Francisco Bay, Red Rock Island. Comment
  SEINET5576095  Stachys bullata H. S. Gentry 1931-1 50 Contra Costa Collected near Buckle Point Mt. Diablo. Comment
  JEPS107110  Stachys pycnantha Barbara Ertter, Kristin Ertter 1995-7-11 14484 Contra Costa West side of Mt Diablo SW of Walnut Creek; dense growth at lower end of Pine Pond, in sun. 182 Comment
  JEPS63040  Stachys pycnantha Mary L. Bowerman 1930-6-28 402 Contra Costa Lower Silver Spring Mount Diablo Comment
  UC2055619  Stachys pycnantha Joseph Andorfer Ewan 1933-10-15 8035 Contra Costa SW slope Mt. Diablo. 1066 Comment
  UC2055623  Stachys pycnantha Joseph Andorfer Ewan 1933-10-15 8043 Contra Costa Mt. Diablo. 1066 Comment
  CAS-BOT-BC374778  Stebbinsoseris heterocarpa Alice Eastwood 1923-5-4 11714 Contra Costa Mt Diablo Comment
  UC13617  Stellaria nitens Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  UC692302  Stellaria nitens Mary L. Bowerman 1931-3-21 603 Contra Costa e end Fossil Ridge; Mount Diablo Comment
  RSA39905  Stephanomeria virgata P. A. Munz 1947-10-8 12206 Contra Costa Antioch 8 Comment
  UC2070660  Stipa lepida Barbara Ertter 2002-5-11 17847 c Contra Costa Southwest base of Mount Diablo, lower end of Summit Trail in Dan Cook Canyon ca. half mile from South Gate Road. Comment
  UC2029161  Stipa miliacea var. miliacea Barbara Ertter, CNPS 1990-11-11 9709 Contra Costa Carquinez Straits Regional Park east of Crockett. Comment
  CAS-BOT-BC87333  Streptanthus hispidus Lewis S. Rose 1935-5-16 35171 Contra Costa Mount Diablo, summit. Comment
  CAS-BOT-BC87335  Streptanthus hispidus H. L. Mason 1938-5-3 11751 Contra Costa Mount Diablo. Trail between Juniper Camp and Deer Flat. 990 Comment
  CAS-BOT-BC87344  Streptanthus hispidus Mary L. Bowerman 1930-6-7 280 Contra Costa Mount Diablo. Meridian Peak summit. Comment
  UC188151  Streptanthus hispidus J. W. Congdon 1896-5-3 Contra Costa summit Mt. Diablo Comment
  UC188201  Streptanthus hispidus J. G. Lemmon 1878-4-23 Contra Costa side Mt. Diablo Comment
  UCD102376  Streptanthus hispidus Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 1050 Comment
  UCD163490  Stuckenia striata D. Slakey; CNPS Volunteers 2015-9-12 223 Contra Costa Junction Suisun Bay and New York Slough, between Browns Island and Pittsburg Marina. 0 Comment
  UC88443  Stylocline gnaphaloides Miss Alice Eastwood 1893-5-5 Contra Costa Brentwood Comment
  JEPS51561  Stylomecon heterophylla W. L. Jepson 1923-6-10 9985 Contra Costa head of Marsh Creek Mt. Diablo; , head of Marsh Creek Comment
  JEPS75654  Stylomecon heterophylla W. L. Jepson 1925-4-26 10683 Contra Costa Black Hills Mt. Diablo; , Black Hills Comment
  SEINET3160771  Stylomecon heterophylla L. S. Rose 1940-4-30 40247 Contra Costa Marsh Creek, 6 mi. e. of Clayton 46 Comment
  UC692176  Stylomecon heterophylla Mary L. Bowerman 1930-6-14 323 Contra Costa not far below summit Meridian Peak Mount Diablo; , not far below summit Meridian Peak Comment
  RSA438613  Suaeda moquinii E. E. Stanford 1930-08 1867 Contra Costa near Old River Comment
  LA204633  Symphoricarpos albus J. A. Ewan; 1936-5-3 9500 Contra Costa Wildcat Creek Comment
  CAS-BOT-BC269560  Symphoricarpos albus var. laevigatus E. E. Stanford 1930-5-24 1509 Contra Costa Marsh Creek Canyon Comment
  CAS-BOT-BC269564  Symphoricarpos albus var. laevigatus L. R. Abrams 1916-6-30 5720 Contra Costa Mt. Diablo near lake Comment
  UC691750  Symphoricarpos albus var. laevigatus Mary L. Bowerman 1931-5-21 880 Contra Costa Curry-Cave Point trail; Mount Diablo 30 Comment
  CAS-BOT-BC269558  Symphoricarpos albus var. laevigatus Mary L. Bowerman 1930-8-24 419 Contra Costa Mount Diablo. Mitchell Canyon, little above end of road Comment
  UC2012972  Symphyotrichum chilense Barbara Ertter with Lisa Schultheis 1996-9-2 15281 Contra Costa Below Knobcone Point Road along path to Devil's Slide southeast of Curry Point. Comment
  UC2046323  Symphyotrichum lanceolatum var. hesperium Barbara Ertter 2000-9-2 17520 Contra Costa Sobrante Ridge Preserve in hills southeast of El Sobrante, north of trailhead from Heavenly Ridge entrance. 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
  UC2027883  Symphyotrichum subulatum Barbara Ertter with Chris Thayer 1996-10-25 15368 Contra Costa Northwest flank of Mount Diablo, east end Northgate Trail from North Gate Road to Diablo Foothills Regional Park. Comment
  CAS-BOT-BC98330  Symphyotrichum subulatum var. parviflorum Walter Knight 1978-7-1 3107 Contra Costa Martinez waterfront, near mouth of Alhambra Creek 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
  CDA33665  Tamarix parviflora Wil Schaub 2011-4-12 PDR# 1645187 Contra Costa Brentwood: Camino Diablo & Vasco Road. 0 Comment
  UCD102393  Tauschia hartwegii 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
  JEPS22095  Tetragonia tetragonoides G. Thomas Robbins 1958-7-19 3906 Contra Costa about 3/4 mi s of Point San Pablo (Point Orient, Potrero San Pablo, Richmond); San Francisco Bay, Point Orient, Potrero San Pablo Comment
  UC20472  Tetrapteron graciliflorum J. Burtt Davy 1895-4-7 904 Contra Costa Antioch Comment
  UC692478  Tetrapteron graciliflorum Mary L. Bowerman 1935-4-26 2907 Contra Costa w Indian Ceremonial Spring; Mount Diablo 1005 Comment
  UC692142  Thalictrum fendleri var. polycarpum Mary L. Bowerman 1931-4-5 672 Contra Costa by road to Gregory Ranch Mount Diablo Comment
  UC9701  Thalictrum fendleri var. polycarpum J. Burtt Davy 1895-4-13 1010 Contra Costa near San Pablo Creek Comment
  CDA29193  Thinopyrum elongatum D. G. Kelch 2008-6-15 8 .248 Contra Costa Carquinez Strait; Crockett hills, S of Cummings Skyway, W of Crockett Blvd. Comment
  JEPS54202  Thysanocarpus curvipes W. L. Jepson 1891-5-24 Contra Costa Mt. Diablo Comment
  JEPS75487  Thysanocarpus curvipes P. F. Yorks 1974-4-19 135 Contra Costa on Hampton Road ca 1.8 km s of Bear Creek Road in Hampton Road Natural Reserve (n of Briones Reservoir); , n of Briones Reservoir 180 Comment
  SBBG29915  Thysanocarpus curvipes L. S. Rose 1933-4-17 33096 Contra Costa Antioch Comment
  UC691143  Thysanocarpus curvipes Mary L. Bowerman 1933-4-9 1842 Contra Costa w fork Donner Canyon Mount Diablo (by trail, Mount Diablo) Comment
  CAS-BOT-BC88254  Thysanocarpus curvipes John Thomas Howell 1934-4-8 11821 Contra Costa Marsh Creek Road southwest of Brentwood. Comment
  CAS-BOT-BC88263  Thysanocarpus curvipes J. G. Lemmon April s.n. Contra Costa Mount Diablo and northward. Comment
  SEINET10482179  Thysanocarpus curvipes var. elegans John T. Middleton 1936-4-18 Middleton 140 Contra Costa Briones valley. Comment
  UC691136  Thysanocarpus laciniatus Mary L. Bowerman 1933-4-26 1933 Contra Costa Perkins Canyon branch between the main e ridge of North Peak and the ridge to its s Mount Diablo (Mount Diablo); , Perkins Canyon branch, North Peak 487 Comment
  UC691514  Tonella tenella Mary L. Bowerman 1935-5-18 3023 Contra Costa Mount Diablo; nw-facing slope across the road from, and a little e of, the parking area 1066 Comment
  JEPS100128  Torilis arvensis A. Langston 2003-7-9 AL 61 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS111629  Torilis nodosa D. G. Kelch 2005-5-1 05 .201 Contra Costa Crockett - Edwards Canyon 100 Comment
  CAS-BOT-BC172938  Toxicodendron diversilobum B. Lacoste 1920-10-1 s.n. Contra Costa On hill slope by Lake Aliso Comment
  UCD139856  Toxicoscordion fremontii Laurence S. Jones 1934-4-8 s.n. Contra Costa Mount Diablo. 609 Comment
  JEPS107101  Tragopogon porrifolius Barbara Ertter 1991-5-12 9812 Contra Costa Point Isabel Regional Shoreline in SW corner of El Cerrito; along old railroad right-of-way between San Francisco Bay and Salicornia marsh. Comment
  JEPS100096  Tribulus terrestris A. Langston 2003-7-9 AL 66 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CDA4740  Tribulus terrestris T. C. Fuller 1961-9-13 6999 Contra Costa South of Highway 4, 0.1 miles west of Antioch Bridge Road, 2 miles west of Oakley. 0 Comment
  SD37268  Trifolium albopurpureum McCallum 1933-4-25 3699 Contra Costa Hillside near Tassajana Comment
  UC575674  Trifolium albopurpureum var. albopurpureum Lewis S. Rose 1935-5-16 35174 Contra Costa Mt. Diablo Comment
  UC692684  Trifolium albopurpureum var. albopurpureum Mary L. Bowerman 1931-4-4 667 Contra Costa w Turtle Rock Comment
  UC148548  Trifolium albopurpureum var. dichotomum Katharine Brandegee 1909-4-24 Contra Costa Antioch Comment
  UC2028215  Trifolium albopurpureum var. dichotomum Barbara Ertter with Richard K. Brummitt 1998-5-13 16131 Contra Costa Summit Road on Mount Diablo, base of rock outcrop/roadcut above Juniper Camp. 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
  UC2070480  Trifolium angustifolium Barbara Ertter 2002-8-24 18018 Contra Costa NE base of Mount Diablo, connector trail paralleling Morgan Territory Road. Comment
  UC16439  Trifolium bifidum var. bifidum W. H. Brewer 1862-5-29 1184 Contra Costa Camp 71 Marsh's Ranch; Marsh's Ranch, Camp 71, Contra Costa Co. Comment
  RSA0068487  Trifolium bifidum var. decipiens Katie Gallagher, Nick Jensen 2014-4-26 187 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  UC2028209  Trifolium bifidum var. decipiens Barbara Ertter 1998-5-3 16072 Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, near Wall Point. Comment
  CHSC116655  Trifolium campestre Lowell Ahart; Josephine Guardino 2016-4-19 20755 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the sides of the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  CDA25739  Trifolium ciliolatum D. G. Kelch 2008-4-12 8 .037 Contra Costa Mt Diablo. Mitchell Canyon. Along road looping north of main Mitchell Canyon Rd. Comment
  CDA29796  Trifolium ciliolatum D. G. Kelch, Troy MacGregor 2009-5-1 9 .265 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  SBBG29985  Trifolium ciliolatum J. T. Howell 1933-5-14 11245 Contra Costa hills E of St Mary's College Comment
  UC400158  Trifolium ciliolatum Ynes Mexia 1929-4-21 2373 Contra Costa Moraga Valley Comment
Read comments
Aug 31 2007
  UC692251  Trifolium ciliolatum Mary L. Bowerman 1932-4-27 1363 Contra Costa w Riggs Canyon (Oyster Ridge, s face); Mount Diablo 762 Comment
  CDA33837  Trifolium ciliolatum D. G. Kelch 2010-5-15 10 .122 Contra Costa Mt. Diablo. Trail from Juniper Camp to Deer Flat. 0 Comment
  CHSC116610  Trifolium depauperatum var. amplectens Lowell Ahart; Josephine Guardino 2016-4-19 20756 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 dmiles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  JEPS65716  Trifolium depauperatum var. amplectens Edw. L. Greene 1889-3-23 Contra Costa Byron Comment
  UC165576  Trifolium depauperatum var. amplectens J. Burtt Davy 1895-1 993 Contra Costa Antioch Comment
  RSA349410  Trifolium depauperatum var. amplectens L. S. Rose 1941-3-27 41068 Contra Costa 2 mi. w. of Byron 61 Comment
  UC1795833  Trifolium depauperatum var. amplectens Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14229 Contra Costa South side Mount Diablo, Sheepherder Springs complex 1/2 mile north of Curry Point, wet ground in grassland. 487 Comment
  UC2028951  Trifolium depauperatum var. amplectens Barbara Ertter 2003-3-28 18121 Contra Costa Round Valley Regional Preserve, Fox Trail ca 1/8 mile west of junction with valley trail. Comment
  JEPS65731  Trifolium depauperatum var. truncatum W. L. Jepson 1917-4-14 6867 Contra Costa Oakland Hills, near Redwood Peak Comment
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Dec 17 2008
  UC147173  Trifolium depauperatum var. truncatum Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  UC1607665  Trifolium depauperatum var. truncatum Barbara Ertter with Michelle Seidl 1992-3-14 10921 Contra Costa E of Mount Diablo; Morgan Territory Regional Preserve Comment
  UC16522  Trifolium depauperatum var. truncatum Harley P. Chandler 1901-3-22 842 Contra Costa Concord Comment
  UC2027922  Trifolium depauperatum var. truncatum Barbara Ertter with Dan Norris 2001-4-15 17611 Contra Costa West side Mount Diablo, outcrops of China Wall rock formation. Comment
  JEPS100104  Trifolium dubium G. Smick GAS 108 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1607614  Trifolium fragiferum Barbara Ertter, Brad Olson 1993-8-8 12199 Contra Costa sw San Ramon; Bishop Ranch Regional Open Space Comment
  UC400160  Trifolium fucatum Ynes Mexia 1929-4-21 2371 Contra Costa Moraga Valley Comment
  UC555454  Trifolium fucatum H. L. Mason 1929-3-31 5143 Contra Costa Briones Valley Comment
  UC692674  Trifolium fucatum Mary L. Bowerman 1935-5-1 2940 Contra Costa 2.1 mi from North Gate (North Rd, just below rd by a hut); Mount Diablo 182 Comment
  UC419042  Trifolium fucatum H. E. and S. T. Parks 1930-4-1 542 Contra Costa along hwy (in ditches); San Ramone Comment
  CDA28818  Trifolium gracilentum D. G. Kelch, Jessica Kolman 2009-5-29 9 .311 Contra Costa Carquinez Strait; Pinole Valley Park, near ridgetop. Comment
  UC517488  Trifolium gracilentum John Thomas Howell 1933-5-14 11249 Contra Costa e St. Mary's College (hills) Comment
  CDA23566  Trifolium hirtum D. G. Kelch, D. A. Weinstein 2008-4-2 08 .032-b Contra Costa Carqinez Strait; E Richmond. Hilltop Rd. Chevy s Hill. Comment
  JEPS111084  Trifolium hirtum Lee Echols 2003-3-3 s.n. Contra Costa S of Lark Drive and EPA building within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  JEPS127100  Trifolium hirtum Lowell Ahart, Josephine Guardino 2016-4-19 20759 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Spring USGS 7.5' Quad. Comment
  UC33580  Trifolium macraei J. P. Tracy 1902-4-24 1399 Contra Costa U. C. Campus Berkeley hills 91 Comment
  UCD35902  Trifolium microcephalum Beecher Crampton 1966-4-26 7666 Contra Costa ca. 2.5 miles west of Martinez on the road to Crockett. Comment
  UC1130084  Trifolium microdon C. M. Belshaw 1936-5-7 2043 Contra Costa 2 mi s San Ramon; Mt. Diablo quadrangle 274 Comment
  UC400151  Trifolium microdon Ynes Mexia 1929-4-21 2380 Contra Costa Moraga Valley Comment
  UC692670  Trifolium microdon Mary L. Bowerman 1935-5-16 2987 Contra Costa Russelman Park Mount Diablo (at end of road) 381 Comment
  UC764715  Trifolium microdon R. F. Hoover 1939-4-25 4066 Contra Costa Richmond hills Comment
  UC1795804  Trifolium microdon Barbara Ertter, Lisa Schultheis 1995-4-27 14008 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; northwest side of open grassy ridge at end of Arbolado Dr. 121 Comment
  UC692669  Trifolium microdon Mary L. Bowerman 1935-4-19 2872 Contra Costa ca 7 mi w Northgate (by rd, ridge w of the power poles, above the rd junction); Mount Diablo 670 Comment
  JEPS4442  Trifolium oliganthum W. L. Jepson 1891-6-9 13698 Contra Costa Fish Ranch Comment
  UC555403  Trifolium oliganthum H. L. Mason 1929-3-29 5131 Contra Costa 2 mi above Clayton (Marsh Creek Rd) Comment
  CDA31447  Trifolium repens D. G. Kelch 2006-8-12 6 .378 Contra Costa Carquinez Strait; Martinez. Along Alhambra Creek near train station. Comment
  CDA29515  Trifolium tomentosum D. G. Kelch, Troy MacGregor 2009-5-1 9 .286 Contra Costa Carquinez Strait; Fernandez Ranch in valley bottom along Christie Rd. Comment
  JEPS127098  Trifolium tomentosum Lowell Ahart, Josephine Guardino 2016-4-19 20760 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Spring USGS 7.5' Quad. Comment
  RSA0033769  Trifolium tomentosum Barbara Ertter 1998-5-3 16063 Contra Costa Connector trail between Barbeque Terrace Road and Wall Point Road. 365 Comment
  UC16795  Trifolium variegatum var. melananthum W. L. Jepson 1891-5-24 Contra Costa Mt. Diablo Comment
  UC692680  Trifolium variegatum var. melananthum Mary L. Bowerman 1932-3-23 1126 Contra Costa betw Monument and Concord (Oak Grove School junction); Mount Diablo Comment
  POM194557  Trifolium variegatum var. melananthum Y. Mexia 1929-4-21 20379 Contra Costa Moraga Valley Comment
  JEPS4408  Trifolium variegatum var. variegatum W. L. Jepson 1891-6-9 13707 Contra Costa Fish Ranch Comment
  CDA29759  Trifolium willdenovii D. G. Kelch, Troy MacGregor 2009-5-1 9 .264 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. Comment
  OBI12643  Trifolium willdenovii W. L. Jepson 1925-4-26 10691 Contra Costa Mt. Diablo Comment
  UC16752  Trifolium willdenovii W. H. Brewer 1862-5-12 1075 Contra Costa Mt. Diablo Comment
  POM252940  Trifolium willdenovii A. A. Heller 1938-4-9 15017 Contra Costa 3 miles southwest of Antioch. Comment
  UC555573  Trifolium willdenovii H. L. Mason 1929-3-29 5132 Contra Costa 2 mi above Clayton (Marsh Creek Rd) Comment
  UCD109505  Trifolium willdenovii Collector unknown Date unknown s.n. Contra Costa 5 miles north of Walnut Creek on road to Contra Costa Golf Club. Comment
  UC1818873  Triglochin maritima Barbara Ertter, Brad Olson 1994-5-7 12765 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge, edge of San Francisco Bay. Edge of marsh. Comment
  UC1619920  Triglochin striata Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10714 Contra Costa Browns Island n of Pittsburg (near confluence of Sacramento and San Joaquin Rivers opposite Pittsburg Marina, at (Botany Cove)); Browns Island Comment
  UCD139902  Trillium chloropetalum Morris Halperin 1929-4-21 s.n. Contra Costa St. Mary's College Campus. Comment
  UC367060  Trillium chloropetalum J. G. Lemmon April, 1878 Contra Costa Mt. Diablo and Oakland Hills Comment
  SEINET3888793  Trillium ovatum Clayton Newberry 1994-3-12 7162 Contra Costa North Coastal Range Forest. Huckleberry Regional Preserve, Skyline Trail.; 0 244 Comment
  JEPS11780  Triodanis biflora Mary L. Bowerman 1933-5-18 2130 Contra Costa w Blackberry Spring (Mount Diablo); , w of Blackberry Spring Comment
  UC1046443  Triphysaria eriantha subsp. eriantha Alex D. Hawkes and R. Bacigalupi 1951-4-21 4772 Contra Costa meadow near Walnut Creek; meadow near Walnut Creek Comment
  UC70188  Triphysaria eriantha subsp. eriantha J. Burtt Davy May 1898 Contra Costa Danville; Region of Mount Diablo, Danville Comment
  JEPS23260  Triphysaria pusilla G. Thomas Robbins 1959-4-26 4004 Contra Costa about 1/4 mi n San Pablo Oil Tank Farm (open slope about 1 mi ne of Giant) 15 Comment
  JEPS3980  Triphysaria pusilla W. L. Jepson 1925-4-26 10694 Contra Costa Mt. Diablo Comment
  UC691571  Triphysaria pusilla Mary L. Bowerman 1931-3-29 615 Contra Costa foot of Cave Point Ridge Mount Diablo; , foot of Cave Point Ridge Comment
  CDA29245  Triteleia laxa D. G. Kelch 2004-5-9 4 .204 Contra Costa Carquinez Strait Region; Crockett - Upper Edwards Canyon above Crockett Boulevard. Comment
  JEPS112496  Triteleia laxa D. G. Kelch 2004-5-9 04 .204 Contra Costa Crockett - Upper Edwards Canyon, Crockett, above Crockett Blvd 160 Comment
  JEPS58040  Triteleia laxa W. L. Jepson 1923-4-22 9856 Contra Costa vicinity San Francisco; Mt. Diablo Comment
  CAS-BOT-BC526326  Triteleia laxa John Thomas Howell 1931-5-12 6468 Contra Costa Oakland Hills Comment
  JEPS99563  Triticum aestivum Mary Bowerman 1978-5-21 Contra Costa Mount Diablo, E side Hetherington Loop. 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
  LA204485  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
  UC191739  Tropidocarpum capparideum Edward Lee Greene 1888-3-24 Contra Costa Byron Spring Comment
  UCR81450  Tropidocarpum capparideum Edward L. Greene 1888-3-25 s.n. Contra Costa Byron Springs 107 Comment
  SBBG27387  Tropidocarpum gracile L. S. Rose 1934-3-21 34066 Contra Costa 6 mi E of Clayton Comment
  UC136962  Tropidocarpum gracile K. Brandegee April, 1889 Contra Costa Antioch Comment
  UC673305  Tropidocarpum gracile H. L. Mason 1929-3-31 5152 Contra Costa sand dike along river at Antioch; San Joaquin River Comment
  SEINET12007177  Tropidocarpum gracile L. S. Rose 1934-1 34066 Contra Costa 6 mi E of Clayton Comment
  UC2070653  Typha Barbara Ertter 1998-11-15 16460 Contra Costa North side Mount Olympia on north side Mount Diablo. Comment
  JEPS121002  Typha angustifolia D. G. Kelch 2003-8-13 03 .105 Contra Costa Martinez Marsh Comment
  SFV8563  Typha angustifolia R. C. Martin 1968-5-18 24 Contra Costa San Pablo Bay, 3 miles south of Pinole Point. In marsh. Comment
  UC1241764  Typha domingensis Malcolm A. Nobs and S. Galen Smith 1949-6-28 877 Contra Costa on road to Martinez about two mi s Crockett Comment
  UC692072  Typha latifolia Mary L. Bowerman 1938-6-14 3677 Contra Costa Mineral Spring Mount Diablo (along streamlet); , Mineral Spring 350 Comment
  UC1795648  Ulmus minor Barbara Ertter, Rich Rabeler 1994-6-18 12837 Contra Costa Pt. Pinole Regional Shoreline at north end of Richmond; northeast corner of park, near jct. Marsh Trail & Cook's Point Trail. Comment
  CAS-BOT-BC91089  Umbellularia californica Mrs. H. C. Cantelow 1937-2-22 s.n. Contra Costa Mount Diablo. Comment
  CHSC22748  Umbellularia californica Robert A. Schlising 1962-2-21 2078 Contra Costa Berkeley-Oakland Hills of westernmost part of county. Comment
  JEPS68942  Umbellularia californica Edward Lee 1935-2-10 1270 Contra Costa Wildcat Creek; Berkeley, Berkeley Hills Comment
  UC1073383  Umbellularia californica George B. Rossbach 1955-2-20 277 Contra Costa ne of Oakland Comment
  UC1196278  Umbellularia californica Joseph P. Tracy 1930-11-27 9262 Contra Costa near Lafayatte 152 Comment
  CAS-BOT-BC91091  Umbellularia californica H. E. McMinn 1925-1-1 s.n. Contra Costa Head of San Leandro Creek. Comment
  RSA121718  Umbellularia californica R. C. Wilson 1935-3-29 156 Contra Costa One mile southwest of Mount Diablo. 1006 Comment
  CAS-BOT-BC381830  Uropappus lindleyi Alice Eastwood 1921-4-18 10291 Contra Costa Antioch Comment
  UC691782  Uropappus lindleyi Mary L. Bowerman 1933-5-18 2137 Contra Costa Mount Diablo Comment
  UC2027813  Uropappus lindleyi Barbara Ertter with Stu Garrett 1997-3-29 15532 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  UCR263554  Urospermum picroides Barbara Ertter 1990-6-18 9133 Contra Costa San Francisco Bay Region, Tilden Regional Park, along Nimitz hiking/bicycle trail near Inspiration Point 206 Comment
  CAS-BOT-BC403927  Urtica dioica subsp. gracilis Joseph Andorfer Ewan 1934-1-14 8160 Contra Costa Wildcat Canyon, one mile below ranch house 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
  UCD164894  Urtica urens Henry House 1995-4-30 1995- 1 Contra Costa About 1 km west of Walnut Blvd., ca. 0.5 km south of Marsh Creek Rd. 60 Comment
  UCD125942  Verbena hastata Malcolm A. Nobs; S. Galen Smith 1949-7-8 942 Contra Costa Otto's Black Bass Resort, 4 miles N of Kingston. Comment
  JEPS121073  Verbena lasiostachys D. G. Kelch 2006-8-6 06 .363 Contra Costa Rodeo Creek, in Rodeo. Comment
  JEPS39065  Verbena lasiostachys var. scabrida Robert Brandt 1914-7-16 Contra Costa Wildcat Canon, Berkeley Hills. Comment
  UC691578  Verbena lasiostachys var. scabrida Mary L. Bowerman 1930-10-4 481 Contra Costa Maple Spring Comment
  JEPS18890  Veronica peregrina subsp. xalapensis Rimo Bacigalupi with G. Thomas Robbins 1956-3-26 5524 Contra Costa 1.2 mi n of junction with Marsh Creek Road ( just n of Briones Valley, along the Deer Valley Road, in territory just s of Antioch,); Deer Valley Road 76 Comment
  UC691653  Veronica peregrina subsp. xalapensis Mary L. Bowerman 1931-4-4 664 Contra Costa w of Turtle Rock (Mount Diablo); Mount Diablo Comment
  UC2028187  Veronica peregrina subsp. xalapensis Barbara Ertter 1998-5-3 16056 Contra Costa Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. Comment
  UCD124780  Veronica peregrina subsp. xalapensis Terri Williamson 1990-5-22 71 Contra Costa 212 Poshard St. Pleasant Hill. 12 Comment
  JEPS99479  Veronica persica Mary Bowerman 1978-4-10 Contra Costa Mount Diablo. Morgan Territory Rd. at Oak Hill Lane. Comment
  UC1050076  Viburnum foetidum var. rectangulatum N. Floy Bracelin 1941-7-13 1476 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CDA23620  Vicia americana D. G. Kelch, D. A. Weinstein 2008-4-15 8 .041 Contra Costa Carquinez Strait; S Port Costa along Mckewen Rd. Comment
  RSA600829  Vicia americana Joseph A. Ewan 1934-4-8 8750 Contra Costa Mt. Diablo: South Fork Marsh Creek. Comment
  UC1130189  Vicia americana var. americana C. M. Belshaw 1936-5-12 2109 Contra Costa 3.7 mi ene Tassajero; Mt. Diablo Quad. 670 Comment
  UC1795744  Vicia benghalensis Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14220 Contra Costa Mt. Diablo southeast of Walnut Creek, roadside at Curry Point. 541 Comment
  JEPS120288  Vicia disperma Barbara Ertter with David Gowen 2012-6-9 21016 Contra Costa lower Vollmer Peak Trail paralleling South Drive, southeastern Tilden Park in Berkeley Hills Comment
  JEPS105699  Vicia hassei David Gowen 2004-3-28 20 Contra Costa Black Diamond Mines Regional Preserve.River View Loop trail southeast of the Arata Overlook trail junction. Comment