Search Results — 2000 specimen records retrieved (1403 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/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  JEPS112392  Acacia dealbata Dean G. Kelch and Andrew G. Murdock 2005-5-13 05 .232 Contra Costa Crockett; County: Contra Costa; West Crockett, below Dead Fish Restaurant along Carquinez Straight. 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
  UC2042783  Acacia dealbata Barbara Ertter with John Little 1989-4-2 8102 Contra Costa Hillside Park in El Cerrito. Comment
  JEPS13005  Acaena pinnatifida var. californica Rimo Bacigalupi with G. T. Robbins and Keith Harrison 1955-5-13 5062 Contra Costa opposite Mira Vista Country Club (hilltop just to w. of Arlington Ave., hills opposite El Cerrito) 198 Comment
  UC466761  Acaena pinnatifida var. californica I. J. Condit 1913-4-19 Contra Costa Richmond Annex Comment
  RSA113974  Acer macrophyllum Peter H. Raven 1957-4-11 10621 Contra Costa Curry Canyon 3.4 miles south of Recreation Ground Comment
  UC18112  Acer macrophyllum H. P. Chandler 584 Contra Costa Briones Valley region of Mount Diablo, Briones Valley Comment
  UCD117010  Acer macrophyllum William B. Davis 1960-3-26 9 Contra Costa North Scenic Boulevard, 1 mile below North Gate of Mt. Diablo State Park. Comment
  CAS-BOT-BC331613  Acer macrophyllum Paul F. Covel 1936-4-19 235 Contra Costa Las Trampas (Cashion) Canyon Comment
  CAS-BOT-BC331616  Acer macrophyllum W. W. Carruth 1901-3-1 s.n. Contra Costa Pine Canon, Mt. Diablo Comment
  SEINET12234133  Acer macrophyllum M. T. Doutt 1930-1 78 Contra Costa Marsh Creek Comment
  UC1050118  Acer macrophyllum N. Floy Bracelin 1942-3-15 1967 Contra Costa Adelante, Tthe Garden of Anson and Anita Blake, Berkeley, California Comment
  SBBG27295  Acer negundo A. Carter 1937-4-4 1229 Contra Costa Moraga Valley, 2.5 mi N of Moraga 182 Comment
  CAS-BOT-BC334178  Acer negundo var. californicum Annetta Carter 1937-4-4 1229 Contra Costa Creek bank, Moraga Valley, 2.5 miles north of Moraga 182 Comment
  CAS-BOT-BC334181  Acer negundo var. californicum Annetta Carter 1937-3-28 1227 Contra Costa Creek bank, Moraga Valley, 2.5 miles north of Moraga 182 Comment
  CAS-BOT-BC334183  Acer negundo var. californicum Annetta Carter 1926-3-27 1384 Contra Costa San Leandro Canyon; Concord USGS 152 Comment
  CHSC23362  Achillea millefolium Willis Ball 1975-4-19 520 Contra Costa Contra Loma Regional Park. In area #2. On n facing slope ca. 100 yds nw of boat ramp on w side of lake. 36 Comment
  UC691726  Achillea millefolium Mary L. Bowerman 1931-4-25 751 Contra Costa 2 mi by road from Mt. Diablo West Entrance; Mount Diablo Comment
  UC29238  Achillea millefolium W. H. Brewer 1862-5-20 1125 Contra Costa hill north of coal mines Monte Diablo Comment
  CDA25241  Achyrachaena mollis D. G. Kelch, D. A. Weinstein 2008-4-15 08 .047-B Contra Costa Carquinez Strait; S Port Costa along Mckewen Rd. Comment
  UC1046583  Achyrachaena mollis Alex D. Hawkes and R. Bacigalupi 1951-4-12 4775 Contra Costa meadow near Walnut Creek Comment
  UC134230  Achyrachaena mollis Katharine Brandegee 1907-5-3 Contra Costa near Antioch Comment
  JEPS112327  Acmispon americanus Dean G. Kelch and Andrew G. Murdock 2004-7-16 04 .321 Contra Costa Martinez- South; County: Contra Costa; Pine St. Entrance Rte 4 heading west. Martinez, CA. Comment
  CHSC116627  Acmispon americanus var. americanus Lowell Ahart; Josephine Guardino 2016-4-19 20781 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. On dry bare soil, below the high water line of Los Vaqueruss Reservoir, 1.4 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  JEPS112367  Acmispon wrangelianus Dean G. Kelch and Andrew G. Murdock 2004-3-19 222 Contra Costa Luzon; County: Contra Costa; Sycamore Ave. just east of Rodeo / Hercules where train crosses Highway 4 (Luzon). Top of ridge to south of road. Comment
  UCD104492  Acmispon wrangelianus Morris Halperin 1929-4-21 s.n. Contra Costa St. Mary's -- College Campus. Comment
  CDA19145  Acroptilon repens R. M. Case 2001-7-1 PDR P 088757 Contra Costa San Francisco Bay Region; In East Bay Municipal Utility District Water Department on Hookston Rd 1, Pleasant Hill. 0 Comment
  CDA35657  Acroptilon repens Vince Guise 2011-8-2 PDR# 1649692 Contra Costa Discovery Bay; southwest corner of Discovery Bay Blvd. and Clipper Dr. 0 Comment
  POM339729  Actaea rubra subsp. arguta F. R. Fosberg 1969-8-13 51420 Contra Costa Canyon Comment
  CAS-BOT-BC133155  Adenostoma fasciculatum Brandegee s.n. Contra Costa Antioch Comment
  LA205596  Aesculus californica J. A. Ewan; 1935-2-3 9082 Contra Costa Wildcat Creek 0.25 mi. below Orinda road bridge Comment
  POM136961  Aesculus californica Ivar Tidestrom 1895-06 s.n. Contra Costa [No location information on label.] Comment
  UCD128633  Agoseris apargioides Morris Halperin 1929-4-21 s.n. Contra Costa Moraga Valley. Comment
  JEPS111761  Agoseris grandiflora var. grandiflora D. G. Kelch 2005-5-13 05 .258-b Contra Costa Martinez - West: along Vista Road ~ 2.5 kiloms West of Martinez 45 Comment
  UCD84956  Agoseris grandiflora var. grandiflora Chuck Hughes 2010-5-21 228 Contra Costa About 0.8 mile northwest of Vasco Road. 335 Comment
  RSA8523  Agoseris heterophylla J. T. Howell 1933-5-14 11260 Contra Costa Hills east of St. Mary's college Comment
  CAS-BOT-BC13350  Agoseris retrorsa Alice Eastwood 1916-5-30 4500 Contra Costa Mount Diablo Comment
  JEPS36280  Agoseris retrorsa W. L. Jepson 1921-5-22 9208 Contra Costa summit Mt. Diablo Comment
  UCD92546  Agrostis Beecher Crampton 1959-9-3 5454 Contra Costa Cleared bed of Bear Creek, about 2 miles north of Orinda. Comment
  CAS-BOT-BC127341  Agrostis exarata Mary L. Bowerman 1933-8-26 2413 Contra Costa Mount Diablo. At and below Lower Canyon Spring. 975 Comment
  CDA28132  Agrostis exarata D. G. Kelch 2003-8-13 3 .113 Contra Costa Carquinez Strait; Salt Marsh E of Marina. Martinez. Comment
  JEPS100031  Agrostis exarata S. O'Neil 2003-6-24 SEO 41 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS400  Agrostis hallii W. L. Jepson 1937-7-2 18447 Contra Costa 0.5 mi w Crokcett Comment
  CDA962  Agrostis pallens D. G. Kelch 2005-6-14 5 .33 Contra Costa East Bay; San Pablo. North Alvarado Park, south of San Pablo Dam Rd. Comment
  CDA9763  Agrostis pallens D. G. Kelch 2002-5-24 2 .019 Contra Costa Carquinez Strait; Crockett. On hill S of San Pablo Ave ~0.4 miles W of Carquinez Bridge. Comment
  JEPS100153  Ailanthus altissima A. Langston 2003-8-26 AL 81 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS97561  Aira caryophyllea R. D. Stone 1980-7-13 282 Contra Costa Huckleberry Trail Oakland Hills, near Alameda-Contra Costa county line (NE of intersection of Skyline Blvd. and Snake Road) Comment
  UC1818968  Aira caryophyllea Barbara Ertter, M. L. Bowerman, L. Schultheis, Kevin Hintsa 1995-10-22 14527 Contra Costa Three Springs Trail on northeast side of Mt. Diablo, south of crest of Marsh Creek Rd. southeast of Clayton dried grasslands at base of trail. 304 Comment
  RSA0027712  Aira caryophyllea Barbara Ertter, Richard K. Brummitt 1998-5-6 16105 Contra Costa Point San Pablo west of Richmond, crest of road to yacht harbor. Comment
  UC1948976  Aira caryophyllea var. capillaris William J. Ferlatte, L. Maynard Moe 1970-4-27 1231 Contra Costa San Francisco Bay: Red Rock Island Comment
  RSA760665  Aira caryophyllea var. capillaris William J. Ferlatte, L. Maynard Moe 1970-4-27 1231 Contra Costa San Francisco Bay, Red Rock Island. Comment
  UC2028390  Alisma lanceolatum Barbara Ertter with Tony Morosco 1998-7-11 16375 Contra Costa Antioch Regional Shoreline under south end of Antioch Bridge, edge of water on riprap 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-BC175364  Allenrolfea occidentalis Alice Eastwood 1927-5-19 14435 Contra Costa Byron Springs Comment
  CDA23224  Allenrolfea occidentalis T. C. Fuller 1965-11-24 14321 Contra Costa South side of Byron Hot Springs Road, 0.6 mile southwest of Byron-Tracy Highway, ca. 1 mile southwest of Byron. 0 Comment
  UC767621  Allenrolfea occidentalis R. F. Hoover 1937-8-31 2707 Contra Costa Byron Hot Springs Comment
  POM181433  Allium crispum I. L. Wiggins 1930-4-17 4565 Contra Costa Near Mountain House, Altamont Pass. Comment
  UC843254  Allium falcifolium Alice Eastwood 1915-5-30 4531 Contra Costa Mt. Diablo Comment
  RSA26408  Allium falcifolium J. T. Howell 1941-4-6 16179 Contra Costa Ridge east of Deer Park, Mt. Diablo Comment
  UC767477  Allium serra R. F. Hoover 1938-3-5 2818 Contra Costa mouth of Kirker Creek canyon Kirker Creek canyon Comment
  CAS-BOT-BC475530  Allium serra Alice Eastwood 1914-3-14 3791 Contra Costa Byron Springs Comment
  SEINET12044784  Allium serratum J. T. Howell 1933-1 11284 Contra Costa E of St. Mary's College Comment
  CAS-BOT-BC476605  Allium unifolium Alice Eastwood 1916-5-30 4454 Contra Costa Mt. Diablo near base Comment
  UC1819012  Allium unifolium Barbara Ertter, Mary Bowerman et al. 1995-5-7 14057 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, creek crossing on north-facing slope, edge of woods and open slopes. Comment
  SEINET8731247 Image available Allocarya stipitata Lewis S. Rose 1936-1 36155 Contra Costa 8 mi. S. of Antioch 30 Comment
  UC2027998  Allophyllum gilioides Barbara Ertter with Tony Morosco 1998-4-12 16021 Contra Costa Mount Olympia on north side of Mount Diablo, Olympia Road down ridge west of summit. Comment
  CAS-BOT-BC170926  Alnus rhombifolia Mary L. Bowerman 1931-10-13 1058 Contra Costa Mount Diablo. Alamo Canyon 259 Comment
  CAS-BOT-BC170933  Alnus rhombifolia Alice Eastwood 1914-3-6 s.n. Contra Costa Redwood Canyon Comment
  SEINET3151403  Alnus rhombifolia L. S. Rose 1938-10-28 38307 Contra Costa Marsh creek, 6 miles East of Clayton. 152 Comment
  UC692033  Alnus rhombifolia Mary L. Bowerman 1930-8-24 421 Contra Costa Mitchell Canyon Mount Diablo Comment
  POM300606  Alnus rhombifolia Mary L. Bowerman 1931-10-13 1058 Contra Costa Alamo Canyon. Mount Diablo. 259 Comment
  UC1952849  Aloe striatula Barbara Ertter 2007-5-20 19027 Contra Costa Berkeley Hills SE of UC campus, along path north of Dwight Way extension at head of Panoramic Way Comment
  SJSU7865  Alopecurus myosuroides H. G. Reeves 1972-4-7 Contra Costa W shore of San Pablo Reservoir near Bench Mark 24, 7 mi S of Dam Comment
  SEINET3917842  Alopecurus myosuroides George Murray 1964-5-24 s.n. Contra Costa Near San Pablo Dam.; 0 Comment
  UCD55972  Alopecurus saccatus P. B. Kennedy 1916-5-11 s.n. Contra Costa Richmond District, Grand View Terrace. Comment
  CDA20558  Alternanthera philoxeroides unknown 2005-6-23 s.n. Contra Costa San Francisco Bay Area; Garden weed in Danville, CA. 0 Comment
  JEPS111587  Amaranthus albus A. G. Murdock 2004-5-28 303 Contra Costa Luzon Roadside 60 Comment
  UC2027977  Amaranthus albus Barbara Ertter with Mary Bowerman 1996-11-1 15397 Contra Costa North base of Mount Diablo, downstream from Mitchell Canyon parking lot. Comment
  POM300589  Amaranthus californicus Mary L. Bowerman 1935-9-13 3343 Contra Costa Frog Pond Comment
  UC1585978  Amaranthus deflexus Barbara Ertter with Elizabeth Neese 1988-10-15 7973 Contra Costa w of I-580 (jct of Central Ave and Rydin Road, El Cerrito); El Cerrito Comment
  CAS-BOT-BC55590  Ambrosia psilostachya Walter Knight 1965-9-7 1167 Contra Costa San Joaquin River at Antioch sand dunes Comment
  UC1618292  Amelanchier utahensis Barbara Ertter, CNPS 1990-8-19 9624 Contra Costa s side of E arm of Briones Reservoir n of Orinda (along Bear Creek Trail on EBMUD land); Briones Reservoir, Bear Creek Trail Comment
  CAS-BOT-BC222224  Amsinckia Alice Eastwood; John Thomas Howell 1936-4-19 2143 Contra Costa At Antioch Comment
  CAS-BOT-BC222227  Amsinckia Alice Eastwood; John Thomas Howell 1936-4-19 2131 Contra Costa Nortonville Comment
  CAS-BOT-BC222234  Amsinckia John Thomas Howell 1933-3-29 10913 Contra Costa Nortonville hills Comment
  UCD32491  Amsinckia Beecher Crampton 1950-4-22 522 Contra Costa Contra Costa County, above site of Judsonville, west of old Empire mine. 152 Comment
  CDA7931  Amsinckia intermedia D. G. Kelch, A. G. Murdock 2005-3-11 5 .039 Contra Costa Carquinez Strait Region; McEwen Road. Carquinez Shoreline EBRP. West of Martinez Highschool. Comment
  SEINET12519155  Amsinckia intermedia Richard R. Halse 1988-1 3541 Contra Costa Along State Hwy. 4 near its junction with Balfour Road on the south edge of Brentwood 5 Comment
  JEPS75462  Amsinckia lunaris P. F. Yorks 1976-4-25 507 -2 Contra Costa n. Briones Reservoir (ca. 1.5 km. s. of Bear Creek Rd. on hampton Rd. in Hampton Rd. Natural Reserve); Hampton Rd. Natural Reserve 170 Comment
  JEPS85241  Amsinckia lunaris Roy E. Buck 1986-4-14 539 Contra Costa ca. 7 air km. n.-n.w. Orinda (n. of Briones Res., w. side Hampton Rd., cyn draining n. to Pinole Cr., ca. 0.25 km. n. of div. separat. Pinole Cr. & Bear Cr. watersheds) 228 Comment
  SD6735  Amsinckia lunaris Edward L. Greene 1887-4-16 Contra Costa Comment
  JEPS25354  Amsinckia lycopsoides Rimo Bacigalupi with Paul C. Hutchison and John Weiler 1959-3-19 6964 Contra Costa 1.9 mi w Byron (at road summit along Camino Diablo) 54 Comment
  UCD119728  Amsinckia lycopsoides Morris Halperin 1929-4-21 s.n. Contra Costa St. Mary's College Campus. Comment
  UC2027923  Amsinckia lycopsoides Barbara Ertter, Dan Norris 2001-4-15 17616 Contra Costa Diablo Foothills Regional Park, Stonegate Trail near Foothills Trail junction. Comment
  CAS-BOT-BC26823  Amsinckia peltigera Alice Eastwood 1921-4-18 10311 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
  RSA0090978  Amsinckia scabra A. A. Heller 1941-3-23 15901 Contra Costa Mt. Diablo. Along the roadside about 2/3 up the mountain near a ditch. Comment
  CAS-BOT-BC26957  Amsinckia sparsiseta Alice Eastwood 1914-3-14 3796 Contra Costa Byron Springs Comment
  UC762817  Amsinckia tessellata var. gloriosa R. F. Hoover 1935-3-10 317 Contra Costa Kirker Pass Comment
  JEPS99972  Anagallis arvensis G. Smick 2003-5-6 GAS 165 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  SBBG122786  Anagallis arvensis B. Ertter 1993-5-7 11717 Contra Costa horse trail SE of Vollmer Peak, E of Tilden Park steam trains 518 Comment
  UC2031455  Anagallis arvensis Barbara Ertter with David Gowen, Mike Park, Chris Thayer et al. 2014-4-12 21711 Contra Costa South tributary of Perkins Canyon at Prospectors Gap Road, Ginochio property on east side of Mount Diablo Comment
  UC196982  Ancistrocarphus filagineus Chesnut and Drew 1889-4-18 Contra Costa sand hills Antioch Comment
  JEPS13778  Androsace elongata subsp. acuta J. P. Tracy 1902-3-15 1314 Contra Costa San Pablo Ridge; e of Berkeley Comment
  JEPS13787  Androsace elongata subsp. acuta Mary L. Bowerman 1935-4-22 2888 Contra Costa ridge w Pioneer Road (w of Old Stage Road, crest of ridge and on the e face Mount Diablo); Mount Diablo 853 Comment
  UC407051  Anemopsis californica Rimo Bacigalupi 1926-4-30 1347 Contra Costa about 3 mi e of Walnut Creek (on Mount Diablo Road); Mount Diablo Road Comment
  CAS-BOT-BC400257  Anemopsis californica Walter Knight; Irja Knight 1977-6-18 s.n. Contra Costa 2 mi. from Dutch Slough on Jersey Island Road, near Oakley Comment
  POM161362  Anemopsis californica R. C. Bacigalupi 1926-4-30 1347 Contra Costa About 3 miles E of Walnut Creek on Mt. Diablo Rd. Comment
  UC2029069  Anemopsis californica Barbara Ertter 2000-7-16 17416 Contra Costa Borges Creek on east side Borges Ranch Road on NW base of Mount Diablo, downstream from fire road junction. Comment
  JEPS111614  Angelica californica D. G. Kelch 2004-5-2 04 .166 Contra Costa Edwards Canyon, Crockett 125 Comment
  UC692562  Angelica californica Mary L. Bowerman 1935-6-21 3149 Contra Costa Mount Diablo, e fork of Arroyo del Cerro Arroyo del Cerro; Mount Diablo, Arroyo del Cerro 274 Comment
  UC697132  Anthemis cotula Mary L. Bowerman 1930-6-3 228 Contra Costa North Road (1.9 mi from entrance) Mount Diablo 167 Comment
  UCD159357  Anthemis cotula D. S. Park 2010-6-22 142 Contra Costa Wildwood canyon. Along trailside and on trail. 79 Comment
  CAS-BOT-BC84716  Anthemis cotula Mary L. Bowerman 1930-6-3 228 Contra Costa Mount Diablo. North Road, 1.9 miles from entrance 167 Comment
  JEPS107105  Anthriscus caucalis Barbara Ertter, Lisa Schultheis 1995-4-27 14015 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; north-facing open brushy slope with scattered oaks along extension of Valley View road. 182 Comment
  CAS-BOT-BC27067  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum Adolph Daniel Edward Elmer 1903-6-1 4809 Contra Costa Mt. Diablo Comment
  JEPS112070  Aphanes occidentalis A. G. Murdock 2004-3-5 212 Contra Costa Sky Ranch At top of ridge along road 250 Comment
  UC12043  Aphanes occidentalis Jos. Burtt Davy 1901-4-21 6927 Contra Costa Wildcat Canyon Comment
  RSA135450  Apiastrum angustifolium Volney Rattan 1886-6-14 s.n. Contra Costa West slope of Mt. Diablo Comment
  UC2028980  Apiastrum angustifolium Barbara Ertter 2000-5-14 17018 Contra Costa Donner Basin on north side of Mount Diablo, upper end of Falls Trail near junction of Cardinet Oaks Road. Comment
  UC692207  Aquilegia eximia Mary L. Bowerman 1933-6-2 2331 Contra Costa Donner Canyon Mount Diablo Comment
  CAS-BOT-BC392088  Aquilegia formosa John Thomas Howell 1933-5-14 11253 Contra Costa Hills east of St. Mary's College 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
  UC2028457  Aralia californica Barbara Ertter with Joanne Kerbavaz and Mary Bowerman 2000-8-20 17513 Contra Costa North side of Mount Diablo, Big Spring below Prospectors Gap Road at head of Donner Canyon Comment
  CHSC24747  Arbutus menziesii G. Strang 1976-4-17 14 Contra Costa Pinehurst road 3.5 mi NW of Canyon School on SE facing bank. 152 Comment
  CAS-BOT-BC407799  Arceuthobium campylopodum R. Bacigalupi 1922-9-24 81 Contra Costa Mitchell Canon, Mt. Diablo Comment
  UC692041  Arceuthobium campylopodum Mary L. Bowerman 1930-6-22 374 Contra Costa above main canyon (Mitchell Canyon Trail); Mount Diablo Comment
  UC692043  Arceuthobium campylopodum Mary L. Bowerman 1931-10-31 1065 Contra Costa south Rd near junction Mount Diablo Comment
  UC1509579  Arctostaphylos Stephen W. Edwards 1984-2-20 SW- 84 -1 Contra Costa w flank of ridge e Olinda Drive (nw of intersection of San Pablo Dam Rd and Castro Ranch Rd) Comment
  RSA29193  Arctostaphylos andersonii var. pallida Joseph A. Ewan 1934-1-7 8162 Contra Costa Head of San Leandro Creek above Oakland. Comment
  CAS-BOT-BC24118  Arctostaphylos auriculata Alice Eastwood 1922-5-14 11311 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC24121  Arctostaphylos auriculata Lewis S. Rose 1934-2-28 34039 Contra Costa S. slope Mt. Diablo, 8 mi. NE Danville Comment
  CDA9744  Arctostaphylos auriculata D. G. Kelch, D. A. Weinstein 1995-3-6 s.n. Contra Costa Rock City. Mt. Diablo. Comment
  POM316531  Arctostaphylos auriculata Mary L. Bowerman 1932-1-23 1075 (Duplicate) Contra Costa Sycamore Canyon, east fork: East edge of chaparral near canyon bottom. Comment
  RSA388864  Arctostaphylos auriculata H. A. Stout, TC Wainwright 1980-3-27 2 Contra Costa Mallory Ranch, ca. 1 mile east of Morgan Territory Road. 609 Comment
  RSA622480  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27601 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments Jan 30 2013
  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
  UC692228  Arctostaphylos auriculata Mary L. Bowerman 1931-3-1 536 Contra Costa e meridian (w edge of chaparral); Mount Diablo, Inner Black Hills Comment
  UC697791  Arctostaphylos auriculata Mary L. Bowerman 1932-9-5 1547 Contra Costa near firebreak which runs s from large spur (on meridian) heading into Sycamore Canyon; Mount Diablo, Inner Black Hills Comment
  CHSC83112  Arctostaphylos canescens subsp. sonomensis Walter Knight 1968-1-15 Contra Costa Tilden Park Bot. Gard. Comment
  CAS-BOT-BC23558  Arctostaphylos crustacea C. Hart Merriam 1919-11-2 s.n. Contra Costa Hill above Moraga Valley Comment
  CAS-BOT-BC24809  Arctostaphylos glandulosa subsp. glandulosa Paul F. Covel 1938-2-20 1113 Contra Costa Moraga Ridge above Pinehurst. Comment
  CAS-BOT-BC24850  Arctostaphylos glandulosa subsp. glandulosa H. E. McMinn 1923-3-6 875 Contra Costa Contra Costa Co. Comment
  UC1120326  Arctostaphylos glandulosa subsp. glandulosa H. A. Jensen 1938-10-27 454 Contra Costa head of Sycamore Creek Mount Diablo Quadrangle Comment
  UC692229  Arctostaphylos glandulosa subsp. glandulosa Mary L. Bowerman 1933-4-22 1900 Contra Costa w Cave Point; Mount Diablo, Inner Black Hills Comment
  CAS-BOT-BC24654  Arctostaphylos glauca Mary L. Bowerman 1930-6-22 362 Contra Costa Mount Diablo, Mitchell Canyon. Comment
  CAS-BOT-BC24655  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
  CAS-BOT-BC24659  Arctostaphylos glauca H. E. McMinn 1922-10-17 411 Contra Costa From Mitchell Canyon, Mt. Diablo. Comment
  JEPS38729  Arctostaphylos glauca W. L. Jepson 1916-10-22 6853 Contra Costa Las Trampas Ridge Comment
  RSA0046800  Arctostaphylos glauca Mary L. Bowerman 1933-3-11 1748 Contra Costa Fossil Ridge, outer south face: In gully northwest of South Gate. Comment
  RSA632819  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27583 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  RSA632820  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27579 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  JEPS19875  Arctostaphylos manzanita subsp. laevigata W. L. Jepson 1922-5-23 9653 Contra Costa s slope Mt. Diablo (about halfway up) Comment
  RSA164649  Arctostaphylos manzanita subsp. laevigata Percy C. Everett 1963-11-19 24499 Contra Costa Mt Diablo. 457 Comment
  RSA257622  Arctostaphylos manzanita subsp. laevigata Gary D. Wallace 1975-8-26 1501 Contra Costa Mt. Diablo St. Pk., E. of Danville, out trail from Curry Point. Comment
  UC1389137  Arctostaphylos manzanita subsp. laevigata H. A. Jensen 1938-10-27 452 Contra Costa head of Curry Canyon Mt. Diablo Quadrangle 518 Comment
  UC692221  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1931-3-1 540 Contra Costa e meridian (w part of chaparral); Mount Diablo, Inner Black Hills Comment
  UC692513  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1932-1-19 1074 Contra Costa on n-facing slope just over crest of ridge (w edge of chaparral); Mount Diablo, Inner Black Hills Comment
  OBI14658  Arctostaphylos manzanita subsp. laevigata H. E. McMinn 1936-4-11 4418 Contra Costa Mt Diablo-head of Sycamore Canyon Comment
  CAS-BOT-BC24351  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1930-6-18 349 Contra Costa Mt. Diablo, Rock City canyon. Comment
  CAS-BOT-BC24382  Arctostaphylos manzanita subsp. manzanita Walter Knight; Irja Knight 1980-3-16 3713 Contra Costa Opposite 5996 Skyline Drive, El Sobrante. Comment
  CAS-BOT-BC24383  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1932-9-5 1545 Contra Costa Mount Diablo. On meridian, which heads into Sycamore canyon: crest of ridge. 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
  POM300730  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1932-1-30 1083 Contra Costa Inner Black Hills, northwest corner of basin of northeast fork of Sycamore Creek. Comment
  CDA29586  Arctostaphylos pallida D. G. Kelch, Suzanne Latham, Matt Beyers 2009-6-3 9 .334 Contra Costa East Bay.; El Sobrante Ridge at end of Silver Belt Dr. on Miocene chert outcrop. Comment
  UC1120869  Arctostaphylos pallida Beryl O. Schreiber 1938-9-18 2548 Contra Costa 0.5 mi ssw Round Top; Concord Quadrangle Comment
  UC909835  Arctostaphylos pallida Lewis S. Rose 1934-1-29 34010 Contra Costa summit of hills above Redwood Canyon (region of type); Oakland Hills Comment
Read comments Aug 9 2011
  JEPS42608  Arctostaphylos tomentosa subsp. crustacea W. L. Jepson 1944-8-5 27546 Contra Costa Moraga Ridge Oakland Hills Comment
  JEPS48824  Arctostaphylos tomentosa subsp. crustacea H. M. Wheeler 1944-1-16 27509 Contra Costa Moraga Ridge Oakland Hills Comment
  RSA202867  Arctostaphylos tomentosa subsp. crustacea Edward Lee 1935-12-28 1703 Contra Costa Western end of Las Trampas Ridge Comment
Read comments Jul 2 2011
  SD107167  Arctostaphylos tomentosa subsp. crustacea Walter Knight 1980-3-6 3719 Contra Costa Redwood Regional Park, East Ridge Trail Comment
Read comments Aug 10 2011
  SD107640  Arctostaphylos tomentosa subsp. crustacea Stephen W. Edwards 1981-1-5 1001 Contra Costa Biones Regional Park, from ridge facing Russell Tree Farm Comment
  UC1120139  Arctostaphylos tomentosa subsp. crustacea C. M. Belshaw 1936-2-16 1587 Contra Costa 2 1/2 mi nw Lafayette; Concord Quadrangle, Lafayette Ridge Comment
  UC1120189  Arctostaphylos tomentosa subsp. crustacea R. W. Lundh 1932-8-27 151 Contra Costa 1 1/2 mi w Cave Point; Mount Diablo Quadrangle 502 Comment
  UC549410  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 622 Contra Costa Moraga Ridge Comment
  UC549412  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-19 677 Contra Costa Rock City Mount Diablo Comment
  UC549463  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 630 Contra Costa Moraga Ridge Comment
  UC549469  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 627 Contra Costa Moraga Ridge Comment
  UC692223  Arctostaphylos tomentosa subsp. crustacea Mary L. Bowerman 1932-3-20 1123 Contra Costa toward top middle ridge (ne fork of canyon); Mt. Diablo, Sycamore Canyon Comment
  CAS-BOT-BC102185  Argyranthemum foeniculaceum William Lidicker 1967-4-13 s.n. Contra Costa Brooks Island, San Francisco Bay Comment
  JEPS81964  Argyranthemum foeniculaceum Rimo Bacigalupi and L. R. Heckard 1965-5-11 9070 Contra Costa on strand at n end Brooks Island (sw of Richmond, in San Francisco Bay); San Francisco Bay, n end of Brooks Island Comment
  POM87995  Aristolochia californica H. M. Hall 1900-3-23 s.n. Contra Costa Lauterwasser Creek Comment
  SD58208  Aristolochia californica L. J. Barker 1932-3-27 Contra Costa Orinda-Bear Valley road just over the divide on Pinole side. Comment
  UC691351  Arnica discoidea Mary L. Bowerman 1931-5-16 849 Contra Costa summit Meridian Peak; Mount Diablo Comment
  UC697153  Arnica discoidea Mary L. Bowerman 1933-5-22 2173 Contra Costa Inner Black Hills, (w of 1970, sheltered gully on n faced) Mount Diablo, Black Hills Comment
  CAS-BOT-BC82594  Arnica lanceolata subsp. prima H. M. Hall; H. P. Chandler 1900-7-1 649 Contra Costa South Fork of San Joaquin River Comment
  UC2070630  Artemisia biennis Barbara Ertter 2005-8-18 18640 Contra Costa Mudflats on SE side of San Pablo Reservoir in East Bay Hills, east of San Pablo Dam Road between San Pablo and Orinda, access between HQ and boat launching area [reservoir way down this year while being drained for seismic work on dam], with extensive Artemisia biennis. Comment
  UC697130  Artemisia californica Mary L. Bowerman 1931-11-21 1069 Contra Costa e flank of Donner Canyon; Mount Diablo Comment
  JEPS111683  Artemisia douglasiana D. G. Kelch 2003-8-13 03 .139 Contra Costa Pinole Creek 68 Comment
  UC1584697  Artemisia douglasiana Jerry Powell 1990-8-29 1591 Contra Costa Antioch National Wildlife Refuge Comment
  UC2028460  Artemisia douglasiana Barbara Ertter 1997-9-7 15794 Contra Costa North side Mount Diablo, Donner Creek crossing at south end of Hetherington Trail Comment
  UC691721  Artemisia douglasiana Mary L. Bowerman 1930-8-24 414 Contra Costa Mitchell Canyon Mount Diablo, Mitchell Canyon Comment
  RSA0027950  Artemisia douglasiana Barbara Ertter 1997-9-7 15794 Contra Costa North side of Mount Diablo, Donner Creek crossing at south end of Hetherington Trail. Comment
  RSA94411  Artemisia douglasiana Joseph A. Ewan 1933-10-15 8033 Contra Costa Grassy slope above Indian Ceremonial Spr., Mt. Diablo Comment
  UC2028360  Artemisia douglasiana Barbara Ertter with Tony Morosco 1998-7-11 16366 Contra Costa North base of Mount Diablo, margin Bruce Lee Road between Mitchell Canyon and Back Creek Comment
  UC543763  Asarum caudatum Herbert L. Mason 1925-9-27 2236 Contra Costa San Leandro Canyon (Redwood Canyon); Oakland Hills Comment
  UC141712  Asclepias californica C. F. Baker 1903-4-28 2871 Contra Costa Marsh Creek Mt. Diablo Comment
  UC1123545  Asclepias fascicularis H. S. Yates 1934-9-2 4067 Contra Costa 1 mi sw Mt. Diablo; Mt. Diablo Quadrangle Comment
  UC630420  Asclepias fascicularis Paule Guiguet, Annetta Carter 1939-8-13 1446 Contra Costa 0.3 mi s Marsh Creek Road (Treat Avenue, e of Concord) 60 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
  CDA34969  Asparagus asparagoides Barbara Ertter 1991-1-21 9715 Contra Costa El Cerrito, in southwest corner of county; northeast corner of Point Isabel Regional Shoreline, along abandoned railroad right-of-way. 0 Comment
  UC1584827  Asparagus officinalis subsp. officinalis Jerry Powell 1990-8-29 1589 Contra Costa Antioch National Wildlife Refuge Comment
  CDA19073  Asphodelus fistulosus B. Case 2001-4-11 PDR 1048013 Contra Costa San Francisco Bay Region; San Ramon. 0 Comment
Read comments May 27 2008
  CAS-BOT-BC180529  Astragalus asymmetricus Katharine Brandegee 1908-1-1 s.n. Contra Costa Near Antioch. Comment
  CAS-BOT-BC180570  Astragalus asymmetricus C. Hart Merriam 1906-9-13 s.n. Contra Costa Byron Springs Comment
  POM181432  Astragalus asymmetricus I. L. Wiggins 1930-4-17 4562 Contra Costa Near Mountain House, Altamont Pass. Comment
  UC659396  Astragalus gambelianus Lincoln Constance, Carl W. Sharsmith with Howard S. Reed 1940-4-27 2572 Contra Costa base of Mount Diablo , Pine Canyon (Pine Canyon) 304 Comment
  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
  SEINET10486680  Astragalus nigrescens Lincoln Constance, Carl W. Sharsmith 1940-4-27 Constance 2572 Contra Costa Petals purplish; fruit obcompressed. Loose serpentine soil, open s slope, pine Canyon, base of mt diablo. 305 Comment
  CAS-BOT-BC168538  Atriplex coronata E. E. Stanford 1930-8-1 1869 Contra Costa Near Old River Comment
  POM181083  Atriplex coronata J. T. Howell 1930-9-28 5503 Contra Costa 5.4 miles from Byron on Marsh Creek Road. Comment
  UC1601683  Atriplex joaquinana Katharine Brandegee 1907-5-3 Contra Costa between Antioch Marsh Creek; between Antioch and Marsh Creek Comment
  UCD97555  Atriplex minuscula Robert E. Preston 1996-7-30 988 Contra Costa on both sides of Greenville Road, 1/2 mile south of I-580. Comment
Read comments Sep 3 2012
  UC2029106  Atriplex semibaccata Barbara Ertter 1990-9-30 9655 Contra Costa SE of Hilltop Mall in N Richmond, near Day's Inn. Comment
  RSA0029775  Atriplex semibaccata Barbara Ertter 1990-9-30 9655 Contra Costa SE of Hilltop Mall in N Richmond, near Day s Inn. Comment
  CAS-BOT-BC146023  Avena barbata Mary L. Bowerman 1931-5-13 845 Contra Costa Mount Diablo. Pine Canyon floor one mile above the sulphur spring. Comment
  JEPS84887  Avena fatua G. D. Barbe 1983-5-22 4081 Contra Costa hillside along fire road n. of Juniper Campground; Mount Diablo State Park 877 Comment
  UCD38559  Avena fatua var. glabrata Beecher Crampton 1956-5-14 3418 Contra Costa 0.5 mile west of Martinez. Comment
  CAS-BOT-BC98763  Baccharis douglasii Mary L. Bowerman 1942-10-4 3852 Contra Costa Mount Diablo, Russelman Park road 289 Comment
  CAS-BOT-BC98762  Baccharis douglasii Mary L. Bowerman 1938-9-17 3719 Contra Costa Mount Diablo, Willow Spring Comment
  UCD150885  Baccharis glutinosa James A. Neilson Jr. 1972-11-9 s.n. Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 1 Comment
  CAS-BOT-BC98614  Baccharis pilularis John Thomas Howell; Gordon H. True 1972-6-29 48926 Contra Costa Near Byron Hot Springs (site) Comment
  UC1119665  Baccharis pilularis R. W. Lundh Sep 1932 159 Contra Costa 1 mi n North Peak; Mt. Diablo Quad. 609 Comment
  CHSC23341  Baccharis salicifolia Willis Ball 1975-3-26 514 Contra Costa Contra Loma Regional Park. In area #2. On W side of lake ca. 30 yds. N of boat ramp on W side of lake. 30 Comment
  POM181441  Baccharis salicifolia I. L. Wiggins 1930-4-18 4600 Contra Costa Levee bank, near ferry, Jersey Island Comment
  SEINET3387286 Image available Baeria gracilis Lewis S. Rose 1932-3-15 3276 Contra Costa open fields, Byron Comment
  JEPS102908  Balsamorhiza deltoidea Barbara Ertter with Holly Forbes 1997-4-20 15564 Contra Costa NE base of Eagle Ridge, Back Creek Trail to Coulter Pine Trail Mount Diablo 213 Comment
  RSA0033933  Balsamorhiza deltoidea Barbara Ertter, Holly C. Forbes 1997-4-20 15564 Contra Costa North base of Mount Diablo at NE base of Eagle Ridge. Lower end of Eagle Peak Trail. Comment
  CAS-BOT-BC16379  Barbarea orthoceras John Thomas Howell 1976-5-20 s.n. Contra Costa Mount Diablo. Below Juniper Camp. Comment
  UC691254  Barbarea orthoceras Mary L. Bowerman 1933-4-22 1899 Contra Costa w of Cave Point (s-face); Mount Diablo, Inner Black Hills Comment
  CDA39043  Bellardia trixago D. G. Kelch 2011-6-5 11 .571 Contra Costa Carquinez Strait; South of Crockett, south of Cummings Skyway. Comment
  UC1584667  Bellardia trixago Jerry Powell 1987-7-14 1500 Contra Costa Point Molate Beach Comment
  UC2028124  Bellardia trixago Barbara Ertter with Richard K. Brummitt 1998-5-6 16084 Contra Costa lower Donner Canyon on north base of Mount Diablo, near Donner Cabin site. Comment
  UC697190  Berula erecta Mary L. Bowerman 1932-12-5 1683 Contra Costa n of Boulevard Spring (near North Road, Mount Diablo, Johnny Walker Spring); Mount Diablo, Johnny Walker Spring Comment
  JEPS111524  Beta vulgaris D. G. Kelch 2005-5-5 05 .209 Contra Costa Point Pinole - Giant Marsh Giant Salt Marsh 3 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
  SEINET3146091  Bidens laevis L. S. Rose 1938-10-28 38311 Contra Costa Byron 3 Comment
  SJSU5109  Bidens laevis M. Bruck 1960-10-30 48 Contra Costa SW end of Winter Island, New York Slough, confluence of Sacramento & San Joaquin Rivers near Antioch Comment
  UCD150895  Bidens laevis James A. Neilson Jr.; Samuel A. Bamberg 1972-10-22 3493 Contra Costa Walnut Creek drainage at State Highway 4. Elevation estimated using Google Earth by label maker. 1 Comment
  NY30996  Blennosperma californicum R. C. F. Bacigalupi 1957-3-27 5761 Contra Costa At junction of Lone Tree Way and Hillcrest Ave. (rd.), about 0.5 mile west of Lone Tree School 39.3 Comment
  CAS-BOT-BC492906  Blennosperma nanum Lewis S. Rose 1932-3-15 3279 Contra Costa Byron Comment
  JEPS25358  Blennosperma nanum var. nanum Rimo Bacigalupi with Paul C. Hutchinson and John Weiler 1959-3-19 6969 Contra Costa 1mi se, e of Byron Road Byron 6 Comment
  UC1543131  Blennosperma nanum var. nanum Donald G. Nelson 1937-3-30 459 Contra Costa about halfway between Clayton and Byron, Marsh Creek Highway Clayton Comment
  SD211539  Blennosperma nanum var. nanum Barbara Ertter 1992-3-8 10908 Contra Costa Byron Springs Road 4-5 miles South of junction with J4, near Armstring 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
  UC2070516  Blennosperma nanum var. nanum Barbara Ertter with Steve Matson 2003-3-15 18108 Contra Costa Black Diamond Mines Regional Preserve, Black Diamond Trail in SW corner of park. Comment
  CAS-BOT-BC127914  Blepharizonia laxa R. F. Hoover 1937-9-2 2710 Contra Costa 1 mi. s. of Pittsburg Comment
  UC88955  Blepharizonia laxa Katherine Curran (= Katherine Curran Brandegee) 1883-10-1 Contra Costa near Judsonville - Antioch Comment
Read comments Jan 22 2009
  CAS-BOT-BC100339  Blepharizonia plumosa T. S. Brandegee Sept. 1883 s.n. Contra Costa Antioch Comment
  JEPS18823  Blepharizonia plumosa R. F. Hoover 1937-8-31 2704 Contra Costa Pittsburg Comment
  RSA332608  Blepharizonia plumosa M. K. C 1885-08 s.n. Contra Costa Antioch Comment
Read comments Dec 16 2012
  UC194219  Blepharizonia plumosa H. M. Hall 1916-8-17 10275 Contra Costa Los Medanos San Francisco Bay Region, Suisun Bay Comment
  UC761865  Blepharizonia plumosa R. F. Hoover 1937-9-2 2708 Contra Costa Walnut Creek Comment
  UCD129618  Blepharizonia plumosa Robert E. Preston 2001-10-7 1777 Contra Costa Black Diamond Mines Regional Park, on w side of Stewartsville Trail, 0.75 mi s of Parking lot at Frederickson Lane trailhead. 152 Comment
  CAS-BOT-BC15964  Boechera breweri subsp. breweri J. W. Congdon 1896-5-8 s.n. Contra Costa Mount Diablo. Comment
  SEINET3166336  Boechera breweri subsp. breweri P. J. Alexander, C. D. Bailey 2009-3-30 969 -D Contra Costa Mount Diablo State Park, on North Peak 0.2 miles west of teh summit, 8.8 miles east of central Walnut Creek. 1012 Comment
  CAS-BOT-BC15958  Boechera breweri subsp. breweri H. E. McMinn 1922-6-2 83 Contra Costa At summit of Mount Diablo - a little north of summit. Comment
  CAS-BOT-BC15965  Boechera breweri subsp. breweri H. M. Hall 1901-4-5 1757 Contra Costa Region of San Francisco. Mount Diablo. Summit. Comment
  UCD140005  Bolboschoenus glaucus Beecher Crampton 1950-7-28 623 Contra Costa San Francisco Bay, Richmond. Comment
  CHSC79610  Bolboschoenus maritimus subsp. paludosus G. F. Hrusa; D. Crowe 1998-5-8 14395 Contra Costa Sacramento-San Joaquin River Delta. At E end of Dow Chemical property in Pittsburg. 15 Comment
  CDA33584  Borago officinalis Guise, Deviney 2010-5-2 PDR# 1645151 Contra Costa Martinez; 651 Pine St. 0 Comment
  UC692361  Bowlesia incana Mary L. Bowerman 1935-6-1 3098 Contra Costa Mount Diablo, Pine-Mitchell Divide Mount Diablo; , Pine-Mitchell Divide 975 Comment
  UC692369  Bowlesia incana Mary L. Bowerman 1931-3-21 591 Contra Costa Mount Diablo, Sycamore Canyon Sycamore Canyon; Mount Diablo, Sycamore Canyon Comment
  UC691083  Brassica nigra Mary L. Bowerman 1938-5-25 3633 Contra Costa Mount Diablo. North Road 2 miles from North Gate. 182 Comment
  JEPS78174  Brassica rapa Gary W. Zamzow 1973-1-26 125 Contra Costa 300 m. s. of Central Ave. overpass & 100 m. w. of Hoffman Blvd. on landfill at edge of bay Richmond Comment
  UC650432  Brassica rapa Ira L. Wiggins 1930-4-18 4609 Contra Costa Jersey Island Comment
  UC2027845  Brickellia californica Barbara Ertter with Mary Bowerman 1996-11-1 15403 Contra Costa North base of Mount Diablo, lower Donner Creek between trailhead and cabin site. Comment
  UC1795697  Briza maxima Barbara Ertter, Chris Thayer 1995-4-25 13999 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Black Hawk Ridge Rd at northeast FK of Sycamore Creek. 396 Comment
  CDA28863  Briza minor D. G. Kelch 2006-5-5 6 .134 Contra Costa East Bay; Wildcat Canyon Regional Park. Near Wildcat Canyon Road terminus. Comment
  CHSC116650  Briza minor Lowell Ahart; Josephine Guardino 2016-4-19 20789 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
  JEPS100061  Brodiaea elegans G. Smick 2003-6-6 GAS 216 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC407032  Brodiaea terrestris subsp. terrestris Ira L. Wiggins 1930-4-17 4573 Contra Costa near Byron Comment
  CAS-BOT-BC149351  Bromus berteroanus Edward Lee 1936-4-19 1970 Contra Costa San Francisco Bay. Red Rock. Northeast corner of the island. Comment
  POM300677  Bromus berteroanus Mary L. Bowerman 1933-4-15 1874 Contra Costa Mount Diablo; Canyon south of Arroyo del Cerro: Rocky knoll 250 feet below spring. Comment
  UCD58127  Bromus carinatus A. A. Beetle 1942-3-22 2931 Contra Costa Brooks Island in San Francisco Bay. Near Richmond. Comment
  SEINET10520207  Bromus carinatus Alan A. Beetle 1942-3-22 Beetle 2931 Contra Costa Brooks Island, San Francisco Bay, near Richmond. 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
  CAS-BOT-BC156062  Bromus diandrus Walter Knight; Irja Knight; et al 1978-9-5 3219 Contra Costa Browns Island. Sandy Knoll. Comment
  CDA28880  Bromus diandrus D. G. Kelch 2006-5-7 6 .162 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  CHSC116659  Bromus hordeaceus Lowell Ahart; Josephine Guardino 2016-4-19 20791 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
  UCD38558  Bromus hordeaceus Beecher Crampton 1956-5-14 3417 Contra Costa 0.5 mile northwest of Martinez. 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
  UC692368  Bromus laevipes Mary L. Bowerman 1935-5-30 3095 Contra Costa between two ridges which converge at Twin Peaks ((Eagle Point Ridge)); Mount Diablo 350 Comment
  UCD58925  Bromus laevipes P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  CAS-BOT-BC162453  Bromus laevipes Mary L. Bowerman 1935-5-22 3045 Contra Costa Mount Diablo. Eagel Point ridge, canyon at north end which heads into saddle west of Twin Peaks. 350 Comment
  UCD58961  Bromus madritensis Beecher Crampton 1956-5-14 3401 Contra Costa Southeast of Mt. Diablo. 640 Comment
  SEINET191355 Image available Bromus madritensis P. F. Knowles B 139 Contra Costa CULTIVATED ; Briones Hills greenhouse Davis. Comment
  UC1137749  Bromus madritensis subsp. madritensis C. M. Belshaw 1936-5-8 2072 Contra Costa 1 1/2 mi w of Mount Zion 274 Comment
  JEPS75534  Bromus madritensis subsp. rubens P. F. Yorks 1974-4-28 1451 Contra Costa 1.7 km s of Bear Creek Road on Hampton Road (n of Briones Reservoir, in Hampton Road Natural Reserve); Hampton Road Natural Reserve Comment
  UCD59633  Bromus rubens A. A. Beetle 1942-3-22 2930 Contra Costa Taber Island. Small island off SW side of Brooks Island in San Francisco Bay. Comment
Read comments Aug 20 2011
  CAS-BOT-BC161952  Bromus rubens Mary L. Bowerman 1933-4-26 1913 Contra Costa Mount Diablo. North Peak ridge east-southeast of the Peak. 609 Comment
  POM300688  Bromus rubens Mary L. Bowerman 1933-5-2 1944 Contra Costa Below Pioneer Camp; Mount Diablo. 762 Comment
  SEINET4343725 Image available Bromus sterilis Barbara Ertter, Mary Bowerman 1995-5-7 14053 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton Comment
  JEPS99574  Bromus tectorum Mary L. Bowerman 1978-5-26 Contra Costa Mount Diablo. N of Lower Summit parking lot. Comment
  CAS-BOT-BC185033  Calamagrostis rubescens Virginia E. Long 1933-6-14 222 a Contra Costa Mount Diablo. Inner Black Hills. 563 Comment
  CAS-BOT-BC233993  Calandrinia breweri R. F. Hoover 1939-4-13 4019 Contra Costa Head of Markley Canyon (west branch) Comment
  CAS-BOT-BC438373  Calandrinia ciliata Mary L. Bowerman 1939-5-2 3741 Contra Costa Mount Diablo. By road to Barbecue Terrace (off South Road) 563 Comment
  UC1136613  Calandrinia ciliata R. W. Lundh 1933-3-25 219 Contra Costa 1 mi w and 1/2 mi n Lafayette (Acalanes Grant); Concord Quadrangle Comment
  CAS-BOT-BC438364  Calandrinia ciliata Brandegee No date on label s.n. Contra Costa Antioch Comment
  CAS-BOT-BC438371  Calandrinia ciliata Alice Eastwood 1914-3-6 s.n. Contra Costa Concord Comment
  CHSC23336  Calandrinia ciliata var. menziesii Willis Ball 1975-3-2 473 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 large hill. 53 Comment
  JEPS61610  Calochortus albus F. Hein 1931-4-14 Contra Costa St. Mary's College Comment
  UC768643  Calochortus albus R. F. Hoover 1939-4-26 4067 Contra Costa Head of Markley Canyon (w branch) Markley Canyon Comment
  SEINET5192548  Calochortus luteus Unknown 1995-6-15 03 Contra Costa Mt.Diablo State Park; near entrance Comment
  CAS-BOT-BC132488  Calochortus pulchellus A. D. E. Elmer 1903-6-1 4631 Contra Costa Mount Diablo Comment
  RSA29584  Calochortus pulchellus Joseph A. Ewan 1934-4-8 8774 Contra Costa Mt. Diablo: South Fork Marsh Creek. Comment
  UC194919  Calochortus pulchellus H. M. Hall 1916-5-30 10132 Contra Costa near Pine Canyon; Mt. Diablo 365 Comment
  UC2028221  Calochortus pulchellus Barbara Ertter with Christopher Baysdorfer 1998-5-10 16125 Contra Costa West side Lime Ridge Open Space northwest of Mount Diablo. Comment
  UCD139551  Calochortus pulchellus H. A. Stout; T. C. Wainwright 1980-4-13 3 Contra Costa Mallory Ranch, around 1/2 mile east of Morgan Territory road. 609 Comment
  JEPS61718  Calochortus splendens W. L. Jepson 1919-6-8 8326 Contra Costa Mt. Diablo Comment
  JEPS17793  Calochortus umbellatus W. L. Jepson 1899-4-19 Contra Costa Las Trampas Canyon Comment
  JEPS62804  Calochortus umbellatus William T. Hirano 1969-4-3 Contra Costa Wildcat Canyon Road Comment
  UC1601662  Calochortus umbellatus W. H. Brewer 1862-5-1 1035 Contra Costa s of Camp 69; Walnut Creek Comment
  UCD139593  Calochortus umbellatus Rudolf Schmid 1997-4-8 1997 -2 Contra Costa Hillside Natural Area, El Cerrito; SW of Kent Dr. - Regency Ct. entrance, north side of junction of the two main fire roads. 575 Comment
  CAS-BOT-BC494049  Calochortus venustus T. S. Brandegee 1889-4-21 s.n. Contra Costa San Pablo Comment
  UCD95579  Caltha palustris E. Dean; with Thomas Starbuck 1993-5-1 359 Contra Costa Oakland hills, canyon E of Skyline Blvd., growing in stream that separates Huckleberry Preserve from Sibley Volcano Park, along Skyline Trail, near old homestead site. Comment
  POM195651  Calycadenia hispida H. M. Hall 1916-8-16 10274 Contra Costa Horse Valley, 9 km south of Antioch Comment
  UC691543  Calycadenia truncata Mary L. Bowerman 1933-8-26 2412 Contra Costa w of Lower Pine Spring; Mount Diablo Comment
  CAS-BOT-BC275352  Calycadenia truncata var. truncata Mary L. Bowerman 1931-9-12 1040 Contra Costa Mount Diablo. Mitchell Canyon, spur jutting into W fork 838 Comment
  UC1794967  Calystegia malacophylla subsp. pedicellata R. K. Brummitt, J. Strother and B. Baldwin 1997-5-27 19606 Contra Costa Mount Diablo, W side, Murchio Gap 800 Comment
  UC635024  Calystegia purpurata A. E. Borell 1928-4-13 128 Contra Costa Point Richmond Comment
  UC1794950  Calystegia purpurata subsp. purpurata R. K. Brummitt, J. Strother and B. Baldwin 1997-5-27 19605 Contra Costa Mount Diablo, W side, Deer Flat Road 800 Comment
  JEPS111815  Calystegia sepium subsp. binghamiae D. G. Kelch 2003-8-13 03 .117 Contra Costa Martinez Marsh 1 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
  UCD119366  Calystegia sepium subsp. limnophila Jean Shepard; Scott Shepard 2011-8-28 857 Contra Costa Antioch Marina. South side of the San Joaquin River, east of the San Francisco Bay, approximately 3 1/4 miles west of the Antioch Bridge. 0 Comment
  UC1123589  Calystegia subacaulis C. M. Belshaw 1936-5-9 2076 Contra Costa 2.25 mi e Clayton; Mt. Diablo quad 381 Comment
  UC2042951  Calystegia subacaulis Barbara Ertter 2002-5-11 17836 Contra Costa Southwest base of Mount Diablo, Green Valley Trail west of Mount Diablo State Park boundary SW of Wall Point (paralleling white paddock fence) Comment
  JEPS31810  Camissonia campestris Miss Linda Gehringer 1914-3-29 Contra Costa Brentwood Comment
  UC107666  Camissonia campestris subsp. campestris Katharine Curran May 1883 Contra Costa Antioch Comment
  UC1084506  Camissonia campestris subsp. campestris G. Thomas Robbins 1940-5-19 328 Contra Costa e Antioch (slope above river); San Joaquin River Comment
  UC2028347  Camissonia contorta Barbara Ertter 1991-5-5 9780 Contra Costa Black Diamond Mines Regional Preserve S of Pittsburg, ridge E of Coal Canyon, N-facing slope Comment
  RSA22373  Camissonia contorta L. S. Rose 1938-5-8 38223 Contra Costa Antioch 15 Comment
  UC692451  Camissoniopsis intermedia Mary L. Bowerman 1932-4-27 1379 Contra Costa canyon w Riggs Canyon (s face of ridge); Mount Diablo, Oyster Ridge 335 Comment
  UC35344  Camissoniopsis micrantha Chesnut and Drew 1889-4-18 Contra Costa Sand Hills Antioch Comment
  CAS-BOT-BC266436  Campanula exigua Alice Eastwood 1915-5-30 4452 Contra Costa Mount Diablo Comment
  UC691593  Campanula exigua Mary L. Bowerman 1930-6-10 309 Contra Costa Meridian Peak Summit Mount Diablo Comment
  SEINET10461960  Campanula exigua Rattan 1886-6-14 RATTAN s.n. Contra Costa Summit of Mount Diablo Comment
  JEPS83131  Capsella bursa-pastoris R. P. Allen 1935-3-15 113 Contra Costa Pittsburg Comment
  CAS-BOT-BC37391  Cardamine californica Alice Eastwood 1923-5-4 s.n. Contra Costa Mount Diablo. Comment
  UC905262  Cardamine californica var. californica J. A. Rattenbury 1949-3-10 128 Contra Costa half mi e Oakland Tunnel; e of Oakland Tunnel 243 Comment
  UC10326  Cardamine californica var. integrifolia W. H. Brewer 1862-5-1 1039 Contra Costa Walnut Creek Comment
  UC10419  Cardamine californica var. integrifolia W. H. Brewer 1862-5-1 1039 Contra Costa Walnut Creek Comment
  CDA8345  Cardamine flexuosa D. G. Kelch, A. G. Murdock 2003-3-21 03 .065-B Contra Costa Carquinez Strait Region; Martinez; West: Ozol Rock and Scenic Drive. Comment
  UC2070647  Cardamine flexuosa Barbara Ertter with David Gowen 2006-4-14 18668 Contra Costa Lime Ridge Open Space (City of Concord) at NW foot of Mount Diablo, SE of Ygnacio Valley Road. Comment
  RSA134229  Cardamine oligosperma P. H. Raven, H. L. Mason, Robert Ornduff 1957-4-11 10623 Contra Costa Curry Canyon, four miles south of the Recreation Ground. Comment
  UC2029039  Cardamine oligosperma Barbara Ertter 2000-3-19 16897 Contra Costa Southwest side of Mount Diablo, Stage Road along Pine Creek, ca 1/2 mile above Pine Pond. Comment
  CDA15243  Cardaria chalepensis G. F. Hrusa, D. Crowe 1998-5-8 14374 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Comment
  CAS-BOT-BC281737  Carduus pycnocephalus John Thomas Howell 1933-5-14 11246 Contra Costa Hills E of St Mary's College Comment
  UC691372  Carduus pycnocephalus subsp. pycnocephalus Mary L. Bowerman 1935-6-28 3179 Contra Costa about the corral of the Old Sloan place (Inner Black Hills); Mount Diablo, Inner Black Hills Comment
  POM226232  Carduus tenuiflorus J. T. Howell 1933-5-21 11323 Contra Costa San Pablo Comment
  UC2028309  Carduus tenuiflorus Barbara Ertter, Susan D'Alcamo 1998-6-12 16193 Contra Costa North Peak Trail south of Prospectors Gap on east side of Mount Diablo summit. Comment
  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
  CDA29516  Carex barbarae D. G. Kelch, Troy MacGregor 2009-5-1 9 .277 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. 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
  UC1795637  Carex barbarae Barbara Ertter, Gary Schoolcraft 1996-4-7 14579 Contra Costa Molate Beach Park on San Francisco Bay north of San Rafael Bridge; old railroad bed where blocked by french-broom, low spot where water gathers. Comment
  SEINET10653000  Carex bifida Lewis S. Rose 1935-5-16 Rose 35163 Contra Costa Mt. Diablo, Wet spots around springs. Comment
  CAS-BOT-BC34932  Carex densa Mary L. Bowerman 1935-5-16 3001 Contra Costa Mount Diablo. Russelman Park Road at Gregory Ranch junction. 289 Comment
  UC1026409  Carex globosa John Thomas Howell 1953-3-15 28923 Contra Costa Rock City Mt. Diablo Comment
  CDA32037  Carex gracilior D. G. Kelch 2006-3-18 6 .104 Contra Costa 2 km N-NW of Orinda Village. NW of corner of San Pablo Dam Rd & Bear Valley Rd. 0 Comment
  SEINET10584363  Carex nudata M. Bowerman Bowerman s.n. Contra Costa Mount Diablo. Sycamore Creek Canyon. Forming clumps in rocky streambed. 244 Comment
  UC691954  Carex serratodens Mary L. Bowerman 1938-6-30 3706 Contra Costa Indian Ceremonial Spring Mount Diablo 1005 Comment
  CDA34365  Carthamus tinctorius E. Finley 1991-6-27 PDR 787956 Contra Costa Along Interstate 680 near Alamo. 0 Comment
  JEPS74802  Castilleja L. R. Heckard, T. I. Chuang and R. C. Bacigalupi 1975-5-7 4010 Contra Costa ca 0.5 mi e Pinole (just e of Interstate 80, along main route of Santa Fe RR) Comment
  JEPS74803  Castilleja L. R. Heckard, T. I. Chuang and R. C. Bacigalupi 1975-5-7 4011 Contra Costa ca 0.5 mi e Pinole (just e of Interstate 80, along main route of Santa Fe RR) Comment
  UC1050822  Castilleja affinis N. Floy Bracelin 1941-6-1 1350 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1050823  Castilleja affinis N. Floy Bracelin 1941-6-1 1349 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS43525  Castilleja affinis subsp. affinis August Hartman 1960-4-19 6 D Contra Costa North Gate Road on Mt. Diablo; Mt. Diablo 609 Comment
  JEPS75506  Castilleja affinis subsp. affinis P. F. Yorks 1974-5-19 161 Contra Costa ca 1.9 km s Bear Creek Rd on Hampton Rd in Hampton Rd Natural Reserve (n of Briones Reservoir) 200 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
  CDA41329  Castilleja densiflora subsp. densiflora D. G. Kelch 2003-4-3 3 .372 Contra Costa Carquinez Strait Region; Cummings Skyway. Comment
  CDA15239  Castilleja exserta G. F. Hrusa, D. Crowe 1998-5-8 14370 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg near shore of San Joaquin River. Comment
  UC2070586  Castilleja exserta Barbara Ertter 2003-3-28 18131 Contra Costa Round Valley Regional Preserve, upper Hardy Canyon. Comment
  CDA41323  Castilleja exserta subsp. exserta D. G. Kelch 2005-4-15 5 .144 Contra Costa Carquinez Strait Region; Rodeo Creek. EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump). Comment
  CHSC116613  Castilleja exserta subsp. exserta Lowell Ahart; Josephine Guardino 2016-4-19 20779 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
  JEPS15212  Castilleja exserta subsp. exserta C. M. Belshaw 1936-5-11 2096 Contra Costa 5.25 mi e Danville; Mt. Diablo 289 Comment
  JEPS16805  Castilleja exserta subsp. exserta Rimo Bacigalupi with G. Thomas Robbins 1955-5-4 4983 Contra Costa 1.25 mi e Antioch (near the San Joaquin River) 9 Comment
  JEPS19519  Castilleja exserta subsp. exserta Rimo Bacigalupi with G. T. Robbins 1956-5-11 5640 -A Contra Costa .33 mi e Pinole (between State Hwy 4 (Franklin Canyon Rd) and Santa Fe Ry right-of-way, 0.25 mi e of junction of this rd with U.S. Hwy 40) Comment
  JEPS74806  Castilleja exserta subsp. exserta L. R. Heckard, T. I. Chuang and R. Bacigalupi 1975-5-7 4014 Contra Costa ca 0.5 mi e Pinole (just of of Interstate Hwy 80, along main route of Santa Fe Railroad) Comment
  JEPS17083  Castilleja exserta subsp. latifolia Rimo Bacigalupi with Keith Harrison and G. T. Robbins 1955-5-13 5064 Contra Costa opposite El Cerrito (just to the w of Arlington Avenue and opposite Mira Vista Country Club); Berkeley Hills 198 Comment
  SEINET5543151  Castilleja parviflora H. S. Gentry 1931-1 51 Contra Costa Collected near Buckle Point, Mount Diablo. Comment
  CDA41397  Castilleja rubicundula subsp. lithospermoides A. G. Murdock 2003-6-24 114 Contra Costa Carquinez Strait; Near upper trail on north side of Mount Wanda, Martinez. Comment
  JEPS9141  Castilleja rubicundula subsp. lithospermoides W. L. Jepson 1922-7-9 9729 Contra Costa Richmond Comment
  UC691573  Castilleja rubicundula subsp. lithospermoides Mary L. Bowerman 1931-5-21 884 Contra Costa w of Curry-Cave Point trail; Mount Diablo 548 Comment
  JEPS121057  Castilleja wightii D. G. Kelch 1999-6-23 99001 B Contra Costa Vaca Canyon along Alhambra Valley Road about 1.5 mile East of Pig Sale Comment
  CAS-BOT-BC40514  Caulanthus lasiophyllus Alice Eastwood 1921-4-18 10251 Contra Costa Antioch. Comment
  CAS-BOT-BC40515  Caulanthus lasiophyllus W. H. Brewer 1862-4-24 987 Contra Costa Camp 68. Martinez. Comment
  CAS-BOT-BC48832  Ceanothus cuneatus John Thomas Howell 1926-3-7 1664 Contra Costa Mt. Diablo on old wagon road Comment
  CAS-BOT-BC48833  Ceanothus cuneatus W. W. Carruth 1907-3-1 s.n. Contra Costa Mt. Diablo Comment
  JEPS42089  Ceanothus cuneatus var. cuneatus W. L. Jepson 1923-3-11 9847 Contra Costa Black Hills Mt. Diablo Comment
  JEPS48863  Ceanothus cuneatus var. cuneatus Elsa Kraeger 1926-3-7 Contra Costa e side Mt. Diablo Comment
  UC18269  Ceanothus cuneatus var. cuneatus State Survey 1862-5-7 1062 Contra Costa summit of Mt. Diablo Comment
  UC692589  Ceanothus cuneatus var. cuneatus Mary L. Bowerman 1930-6-10 319 Contra Costa accross the rd from and slightly below, Muir Area; Mount Diablo Comment
  UC80011  Ceanothus cuneatus var. cuneatus G. W. Dunn 1892-3-12 Contra Costa Mt. Diablo Comment
  SBBG68364  Ceanothus cuneatus var. ramulosus H. E. McMinn -- Contra Costa Mt Diablo Comment
  CAS-BOT-BC51494  Ceanothus oliganthus var. sorediatus C. H. M. 1919-8-24 s.n. Contra Costa Las Trampas Peak Comment
  CHSC24694  Ceanothus oliganthus var. sorediatus G. Strang 1976-4-17 15 Contra Costa 2 .7 mi w of Canyon school on Pinehurst Rd. on se facing bank. 121 Comment
  JEPS42198  Ceanothus oliganthus var. sorediatus W. L. Jepson 1916-7-16 6814 Contra Costa Oakland hills Comment
  UC692586  Ceanothus oliganthus var. sorediatus Mary L. Bowerman 1932-9-17 1580 Contra Costa West branch of Donner Canyon Mount Diablo Comment
  UC692588  Ceanothus oliganthus var. sorediatus Mary L. Bowerman 1935-5-30 3084 Contra Costa By Donner Canyon stream 161 Comment
  JEPS99959  Centaurea calcitrapa A. Langston 2003-7-28 AL 76 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2028009  Centaurea calcitrapa Barbara Ertter with Amy Rusev 1998-1-17 15894 Contra Costa Lime Ridge Open Space at NW foot of Mount Diablo. Comment
  UC691370  Centaurea melitensis Mary L. Bowerman 1932-11-19 1661 Contra Costa little below junction of pipes from no. 3 and no. 4 club springs Mountain Springs Canyon (Stachys Spring); Mount Diablo, , Stachys Spring Comment
  CHSC75053  Centaurea solstitialis Roger Thom 1987-5-28 25 Contra Costa 3300 block of Johnson Rd. 0.3 mi from intersection with Reliez Valley Rd. Lafayette. 137 Comment
  OBI16865  Centaurea solstitialis Robert F. Hoover 1966-8-31 9946 Contra Costa Jctn of Tassajara and Freitas Rd, E of Danville Comment
  UC691834  Centaurium muehlenbergii Mary L. Bowerman 1930-9-27 463 Contra Costa 2.25 mi by road from Mount Diablo north entrance (west base spring, take trail trough to w, follow to fence and go through); Mount Diablo Comment
  CDA36467  Centaurium tenuiflorum Ed Swan 2011-8-18 PDR# 1641228 Contra Costa Orinda; Bear Creek Road near Fire Trail 43-4. 0 Comment
  CDA42426  Centranthus ruber D. G. Kelch, Vince Guise 2012-7-26 12 .233 Contra Costa El Sobrante; Circle Dr. Comment
  UC1050884  Centranthus ruber N. Floy Bracelin 1942-5-17 1288 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC288546  Centromadia fitchii James I. McMurphy 1908-10-18 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC288551  Centromadia fitchii Alice Eastwood 1921-4-18 10255 Contra Costa Antioch Comment
  UC691508  Centromadia fitchii Mary L. Bowerman 1930-9-27 471 Contra Costa 2.5 mi from entrance (= North Gate) (w road (= North Rd.)); Mount Diablo Comment
  CAS-BOT-BC288537  Centromadia fitchii David D. Keck 1933-11-2 2616 Contra Costa 1 mile E of Nichols, N part of county Comment
  CAS-BOT-BC288541  Centromadia fitchii John Thomas Howell 1955-8-24 30904 Contra Costa Mt Diablo near Turtle Rock 259 Comment
  CAS-BOT-BC288543  Centromadia fitchii L. S. Rose 1941-10-13 41464 Contra Costa 1 mile E of Walnut Creek 50 Comment
  CAS-BOT-BC288874  Centromadia parryi subsp. congdonii R. E. Preston 1998-10-6 1178 Contra Costa Along flood plain of Alamo Creek, along Dougherty Rd, N of the Alameda/Contra Costa County line 143 Comment
  UC990583  Centromadia parryi subsp. congdonii James I. McMurphy 1909-9-24 Contra Costa San Ramon Comment
  JEPS111721  Centromadia pungens subsp. pungens D. G. Kelch 2004-6-19 04 .288 Contra Costa Crockett Immediately West (almost under) Carquinez Bridge along San Pable Ave. 10 Comment
  CAS-BOT-BC279192  Centromadia pungens subsp. pungens Niall McCarten; V. I. Dains 1986-1-1 03251142 Contra Costa Wl of Camino Diablo & Kellogg Creek Comment
  UC1178029  Centunculus minimus Herbert L. Mason 1955-7-14 14632 a Contra Costa 1/2 mi e of Antioch Bridge Comment
  UC1039525  Cephalanthus occidentalis var. californicus H. L. Mason 1929-9-21 5447 Contra Costa 1 mi from Borden Highway junction with road to Antioch Comment
  CDA29228  Cerastium glomeratum D. G. Kelch 2005-5-13 05 .272-C Contra Costa Carquinez Strait; Above and west of Edwards Canyon, nr Crockett. Comment
  UC1618283  Ceratophyllum demersum Barbara Ertter, Lynne Hosley 1991-9-22 10823 Contra Costa in hills sw of Lafayette (Lafayette Reservoir, at e end of dam); Lafayette Reservoir 137 Comment
  CAS-BOT-BC137007  Cercocarpus betuloides var. betuloides H. L. Dale 1927-3-1 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC137010  Cercocarpus betuloides var. betuloides Mary L. Bowerman 1930-6-14 325 Contra Costa Mount Diablo. Summit area Comment
  UC12129  Cercocarpus betuloides var. betuloides W. H. Brewer 1862-5-14 1089 Contra Costa Mount Diablo, summit Mount Diablo 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
  CAS-BOT-BC284221  Chaenactis glabriuscula var. megacephala Alice Eastwood 1921-4-18 10298 Contra Costa Antioch Comment
  RSA181414  Chaenactis glabriuscula var. megacephala James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  UC2028248  Chamaesyce ocellata subsp. ocellata Barbara Ertter, Mary Bowerman, Lisa Schultheis 1998-8-21 16402 Contra Costa North Gate Road on west side of Mount Diablo, 1 mile below Junction. Comment
  UCD102374  Cheilanthes covillei Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Burma Road at Mount Diablo. 400 Comment
  CAS-BOT-BC70278  Cheilanthes intertexta John Thomas Howell 1955-3-6 30145 Contra Costa between South & North peaks of Mt. Diablo Comment
  UC1328154  Chenopodium album Olive Dyer 1936-9-5 28 w Contra Costa 1/2 mi above San Pablo Ave.; Wildcat Creek Comment
  JEPS87912  Chenopodium ambrosioides Barbara Ertter, B. Olson, D. Lake, L. Hosley and A. Youngson 1991-10-20 10883 Contra Costa just w Antioch marina (levee at n-center of preserve, at end of road); Dow Wetlands Preserve Comment
  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
  JEPS111800  Chenopodium murale D. G. Kelch 2004-7-9 04 .308 Contra Costa Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite 60 Comment
  CDA9490  Chenopodium rubrum D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 07 .213-B Contra Costa Byron Airport. Comment
  UC322989  Chenopodium vulvaria A. M. Burton 1927-8-26 Contra Costa near Concord Comment
  JEPS57664  Chorizanthe membranacea W. L. Jepson May 23 1891-May 24 1891 Contra Costa Mount Diablo Comment
  UC1136020  Chorizanthe membranacea C. M. Belshaw 1936-5-8 2057 Contra Costa se slope Mount Diablo; Mount Diablo Quad. Comment
  UCD99773  Chorizanthe membranacea P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  CAS-BOT-BC252676  Chorizanthe membranacea Paul F. Covel 1936-5-17 152 Contra Costa Mt. Diablo Trail from summit to north peak Comment
  UC52588  Chorizanthe membranacea W. H. Brewer 1862-5-17 1104 Contra Costa canyon n Monte Diablo; canyon n of Monte Diablo (Mount Diablo?) Comment
  UCSB27372  Chrysolepis chrysophylla Havlik, Neil 1969-7-18 Contra Costa About one-half mile from Skyline Blvd. on the Huckleberry Trail, Oakland Hills 396 Comment
  CAS-BOT-BC30109  Chrysolepis chrysophylla var. minor John Thomas Howell 1925-9-19 1442 Contra Costa Moraga Ridge, Oakland Hills Comment
  CAS-BOT-BC30112  Chrysolepis chrysophylla var. minor C. Keeper 1924-9-25 s.n. Contra Costa Moraga ridge Comment
  CAS-BOT-BC30113  Chrysolepis chrysophylla var. minor W. B. Stephens 1919-11-22 s.n. Contra Costa Moraga ridge Comment
  JEPS46617  Chrysolepis chrysophylla var. minor W. L. Jepson 1919-1-25 8210 Contra Costa Moraga Ridge Comment
  JEPS97617  Chrysolepis chrysophylla var. minor R. D. Stone 1980-7-13 265 Contra Costa NE of intersection of Skyline Blvd. and Snake Rd. Huckleberry Trail; Oakland Hills, near Alameda-Contra Costa county line Comment
  UCD110095  Chrysolepis chrysophylla var. minor Beecher Crampton 1957-11-20 4652 Contra Costa Alameda County line. Between Round and Redwood Regional Parks, Berkeley Hills. Comment
  UC691835  Cicendia quadrangularis Mary L. Bowerman 1942-5-24 3842 Contra Costa Fossil Ridge Mount Diablo (lower Rock City Camp) 457 Comment
  UC20920  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-BC277977  Cirsium cymosum John Thomas Howell 1931-5-12 6479 Contra Costa North side of Mt. Diablo Comment
  JEPS59324  Cirsium occidentale var. californicum W. L. Jepson 20843 Contra Costa Mt. Diablo Contra Costa Comment
  UC691390  Cirsium occidentale var. venustum Mary L. Bowerman 1930-6-10 295 Contra Costa near Mineral (on North Road); Mount Diablo 396 Comment
  UCD159457  Cirsium vulgare D. S. Park; K. Yeo 2010-8-7 211 Contra Costa Mt. Wanda hiking trail entrance. Under overpass. 85 Comment
  UC1782176  Citrullus colocynthis var. lanatus Rudolf Schmid 2003-9-13 2003 -15 Contra Costa vacant lot, 24 Edwin Dr., Kensington 169 Comment
  UC1818926  Clarkia affinis Barbara Ertter, Mary Bowerman 1995-6-11 14255 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
  UC692492  Clarkia affinis Mary L. Bowerman 1933-4-26 1925 Contra Costa ese North Peak (North Peak Ridge, s face); Mount Diablo 609 Comment
  CAS-BOT-BC162562  Clarkia affinis Mary L. Bowerman 1931-5-13 843 Contra Costa Pine Canyon floor one mile above the Sulphur Spring - Mount Diablo Comment
  RSA108230  Clarkia affinis Harlan Lewis, C. Epling 1947-5-2 196 Contra Costa March Creek Road, 1 mile west of Curry Creek Park Road Comment
  UC1197000  Clarkia biloba Joseph P. Tracy 1935-7-6 14038 Contra Costa 4 mi sw Martinez; Vaca Canyon 152 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-BC163607  Clarkia biloba subsp. biloba V. Rattan 1886-1-1 s.n. Contra Costa Unspecified Comment
  LA206006  Clarkia biloba subsp. biloba H. Lewis; M. Lewis 1947-6-15 442 Contra Costa Martiney - Port Costa Road, 2.7 mi. N of Martiney City Limit Comment
  POM153229  Clarkia biloba subsp. biloba C. L. Hitchcock 1928-6-5 15 Contra Costa Between Port Costa and Crockett, 1 mile west of Port Costa. 5 Comment
  POM301856  Clarkia biloba subsp. biloba Mary L. Bowerman 1935-6-15 3139 Contra Costa Mount Diablo: Eagle Point Ridge below Ransom Point 823 Comment
  CAS-BOT-BC164156  Clarkia concinna A. D. E. Elmer 1903-5-1 4336 Contra Costa Mount Diablo Comment
  UC2062660  Clarkia concinna Barbara Ertter with John Ginochio 2002-6-1 17939 Contra Costa Ginochio Ranch in Arroyo del Cerro NW side of Mount Diablo, connector road between Government Road and Olofson Homestead. Comment
  JEPS111558  Clarkia concinna subsp. concinna A. G. Murdock 2003-6-24 117 Contra Costa Vaca Canyon Alhambra Valley Road on south bank 165 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
  UC1952185 Image available Clarkia concinna subsp. concinna R. Raiche 1981-3-1 s.n. Contra Costa North America, U.S.A., California, Contra Costa County: Mt. Diablo. N. Slope of N. peak in talus slopes below the ridge line. Under Quercus spp., Juniperus californica, Cercocarpus betuloides & Pelea baldwinii. Comment
  CAS-BOT-BC171989  Clarkia epilobioides K. Brandegee s.n. Contra Costa Antioch Comment
  UC692490  Clarkia gracilis subsp. gracilis Mary L. Bowerman 1942-5-24 3840 Contra Costa w slope Deer Ridge (Jim White Trail to Deer Flat); Mount Diablo 853 Comment
  UC2028270  Clarkia purpurea Barbara Ertter 1999-6-12 16707 Contra Costa Black Hawk Ridge Road between Knobcone Point Road and NE fork of Sycamore Creek, South side of Mount Diablo. Comment
  JEPS75482  Clarkia purpurea subsp. purpurea P. F. Yorks 1974-5-24 168 Contra Costa ca 1.7 km s Bear Creek Road (on Hampton Road, n of Briones Reservoir); Hampton Road Natural Reserve 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
  UC1122405  Clarkia purpurea subsp. quadrivulnera C. M. Belshaw 1936-5-8 2053 Contra Costa 1 3/4 mi ssw Mt. Diablo summit (near plot 4); Mt. Diablo Quadrangle Comment
  UC692442  Clarkia purpurea subsp. quadrivulnera Mary L. Bowerman 1931-5-2 799 Contra Costa foot Eagle Point ridge; Mount Diablo 228 Comment
  CAS-BOT-BC165038  Clarkia rubicunda Peter H. Raven 1957-6-20 10950 Contra Costa Hillside at Inspiration Point, east end of Tilden Regional Park 365 Comment
  UC1279898  Clarkia rubicunda Peter H. Raven 1957-6-20 10950 Contra Costa e end Tilden Regional Park (hillside at Inspiration Point) Comment
  CAS-BOT-BC165035  Clarkia rubicunda Peter H. Raven 1957-7-5 11050 Contra Costa On the north-east side of the hills at Point Richmond 106 Comment
  UC2012964  Clarkia rubicunda Barbara Ertter with Travis Columbus 1990-6-10 9103 Contra Costa NE corner of Briones Regional Paark, Briones Hills W of Pleasant Hill, jct of Briones Crest and Table Top trails E of Briones Peak. Comment
  CAS-BOT-BC165451  Clarkia unguiculata Volney Rattan 1886-6-15 s.n. Contra Costa Unspecified Comment
  CAS-BOT-BC165453  Clarkia unguiculata John Thomas Howell 1931-5-12 6481 Contra Costa North side of Mt. Diablo Comment
  CAS-BOT-BC439165  Claytonia exigua subsp. exigua Mary L. Bowerman 1932-3-12 1110 Contra Costa Mount Diablo. Alamo Canyon 350 Comment
  JEPS48618  Claytonia exigua subsp. exigua Elsa Kraeger 1926-3-7 Contra Costa w side Mt. Diablo Comment
  JEPS68969  Claytonia exigua subsp. exigua Edward Lee 1935-3-10 1303 Contra Costa Nortonville , Kirker Creek (s watershed Kirker Creek) Comment
  UC1587532  Claytonia exigua subsp. exigua K. L. Chambers 1977-4-1 4266 Contra Costa ca .12 mi above Deer Flat (on trail to Deer Flat from the summit road, Mt. Diablo); Mt. Diablo Comment
  UC1587533  Claytonia exigua subsp. exigua K. L. Chambers 1977-4-1 4265 Contra Costa ca 0.25 mi from Deer Flat (on trail to Deer Flat from the summit road, Mt. Diablo); Mt. Diablo Comment
  CAS-BOT-BC439168  Claytonia exigua subsp. exigua John Thomas Howell 1926-3-7 1678 Contra Costa Mitchell Canon [Canyon], Mt. Diablo Comment
  CAS-BOT-BC439323  Claytonia exigua subsp. glauca Mary L. Bowerman 1932-3-6 1098 Contra Costa Mount Diablo. Black Hawk Ridge near saddle Comment
  CAS-BOT-BC439331  Claytonia gypsophiloides Alice Eastwood 1921-6-11 10600 Contra Costa Mt. Diablo summit Comment
  UC692659  Claytonia gypsophiloides Mary L. Bowerman 1931-4-19 736 Contra Costa Deer Flat Mount Diablo (hillslope where the trail leaves the flat) Comment
  JEPS112034  Claytonia parviflora subsp. parviflora D. G. Kelch 2003-3-21 03 .46 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  UC1795876  Claytonia parviflora subsp. parviflora Barbara Ertter, Brad Olson, Diane Lake 1996-4-14 14590 Contra Costa North Peak of Mt. Diablo; open rocky flats. 1097 Comment
  UC2028060  Claytonia parviflora var. parviflora Barbara Ertter, Tony Morosco 1998-4-12 16014 Contra Costa Mount Olympia on north side of Mount Diablo. Comment
  JEPS75502  Claytonia perfoliata subsp. mexicana P. F. Yorks 1975-4-10 382 Contra Costa ca 1.7 km s Bear Creek Rd on Hampton Rd in Hampton Road Natural Reserve (n of Briones Reservoir) 190 Comment
  CAS-BOT-BC440075  Claytonia perfoliata subsp. perfoliata John Thomas Howell 1931-3-10 5755 Contra Costa East side of Mt. Diablo 7 miles from Clayton on Livermore road Comment
  CAS-BOT-BC440078  Claytonia perfoliata subsp. perfoliata Lewis S. Rose 1933-3-10 33013 Contra Costa Brentwood Comment
  UC1050211  Clematis flammula N. Floy Bracelin 1941-10-13 1703 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC105334  Clematis flammula N. Floy Bracelin 1941-8-10 1703 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1051262  Clematis heracleifolia var. davidiana N. Floy Bracelin 1941-7-4 1459 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC136298  Clematis lasiantha C. F. Baker 1903-4-28 2946 Contra Costa Mt. Diablo, Mitchells Canyon Comment
  UC545776  Clematis lasiantha Annetta M. Carter 1935-6-1 874 Contra Costa n.w. slope of main peak Mt. Diablo 1005 Comment
  UC692071  Clematis lasiantha Mary L. Bowerman 1930-6-7 272 Contra Costa Meridian Peak summit Mt. Diablo Comment
  UC692099  Clematis lasiantha Mary L. Bowerman 1931-5-16 856 Contra Costa Meridian Peak summit Mt. Diablo Comment
  UC692098  Clematis ligusticifolia Mary L. Bowerman 1930-8-24 436 Contra Costa near rd. Mitchell Canyon; Mt. Diablo, Mitchell Canyon Comment
  SEINET9290098  Clytostoma callistegioides Unknown 2009-6-3 Contra Costa Residence in San Ramon, California. See USCH plant ID files. Plant sent to USCH for identification. Query letter included on specimen. Comment
  UC903181  Collinsia bartsiifolia var. bartsiifolia Ethel Crum 1936-4-5 1744 Contra Costa 2 mi w Byron; South Coast Ranges 45 Comment
  POM203034  Collinsia sparsiflora var. collina J. T. Howell 1934-4-8 11810 Contra Costa 7 miles from Clayton on road to Livermore. Comment
  JEPS7290  Collinsia tinctoria Mary L. Bowerman 1935-5-30 3090 Contra Costa Mount Diablo, Eagle Point Ridge, Rock slide Eagle Point Ridge; Mount Diablo, Eagle Point Ridge 350 Comment
  UC691624  Collinsia tinctoria Mary L. Bowerman 1935-6-1 3117 Contra Costa summit Mount Diablo Mount Diablo, summit (towards Devils Pulpit) 1158 Comment
  JEPS79511  Collomia diversifolia Edward Lee 1978-5-13 Contra Costa Meridian Ridge Mt. Diablo Comment
  UCD164881  Conium maculatum Henry House 1995-5-20 1995- 13 Contra Costa Adjacent to Walnut Blvd., approximately 1.25 km south of Marsh Creek Road. 30 Comment
  UC2029194  Conium maculatum Barbara Ertter 2000-7-16 17382 Contra Costa Diablo Foothills Regional Park, riparian strip along Pine Creek between Castle Rock Regional Recreation Area Comment
  UCD126197  Convolvulus arvensis Henry House 1995-5-20 1995- 18 a Contra Costa East Contra Costa County: ca. 100 meters west of Walnut Blvd., ca. 1.25 km south of Marsh Creek Road. 10 Comment
  JEPS111731  Conyza canadensis D. G. Kelch 2004-9-2 04 .331 Contra Costa Pacheco Marsh east of Martinez and I-680 and east of lone tree Marsh 5 Comment
  UC2028010  Conyza canadensis Barbara Ertter 1998-1-4 15888 Contra Costa South end of Diablo Foothills Regional Park southeast of Walnut Creek. Comment
  UC1005958  Coprosma baueri N. Floy Bracelin 1942-5-10 2071 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS84878  Cordylanthus mollis subsp. mollis Terry L. Palmisano August 1987 Contra Costa just w Hastings Slough; Concord Naval Weapons Station property Comment
  JEPS95193  Cordylanthus mollis subsp. mollis Jake Ruygt 1993-9-3 Contra Costa w of Hastings Slough (Concord Naval Weapons Station) Comment
  JEPS105307  Cordylanthus nidularius Dean W. Taylor 1994-7-26 14554 Contra Costa Bald Ridge, Mount Diablo State Park 762 Comment
  UC2070532  Cordylanthus pilosus Barbara Ertter with Dan Norris 2000-12-3 Contra Costa Mount Diablo, Camp Force area SE of Curry Point. Comment
  SEINET12765203  Cordylanthus pilosus subsp. pilosus Barbara Ertter, Lynne Hosley 1992-8-29 11266 Contra Costa East of Moutn Diablo in canyon along Coyote Trail.; 0 Comment
  UC1818988  Cornus glabrata Barbara Ertter, M. L. Bowerman, L. Schultheis, Kevin Hintsa 1995-10-22 14538 Contra Costa Three Springs Trail on northeast side of Mt. Diablo, at stream crossing north-facing slope. Comment
  UC692511  Cornus glabrata Mary L. Bowerman 1931-5-28 904 Contra Costa Pine Canyon Mt. Diablo (gully at e. end of Castle Rock Farm); , Pine Canyon Comment
  UC70644  Cornus sericea subsp. sericea Jos. Burtt Davy 1895-7-13 Contra Costa Moraga Valley, Jack Hayes Canyon Oakland Hills, Moraga Valley, Jack Hayes Canyon Comment
Read comments Jun 8 2011
  JEPS111525  Coronopus didymus D. G. Kelch 2005-5-5 05 .210 Contra Costa Point Pinole - Giant Marsh Giant Salt Marsh 3 Comment
  UC407389  Coronopus didymus Ira L. Wiggins 1930-4-18 4595 Contra Costa e end of Jersey Island, Fallow cornfield Jersey Island Comment
  UC651290  Coronopus didymus Ira L. Wiggins 1930-4-18 4595 Contra Costa e end of Jersey Island, Fallow cornfield Jersey Island Comment
  CAS-BOT-BC190075  Cortaderia selloana Walter Knight 1978-9-19 3247 Contra Costa Browns Island. South Landing. Comment
  UC2028555  Cortaderia selloana Barbara Ertter 1998-11-15 16459 Contra Costa North side Mount Olympia on north side Mount Diablo. Comment
  JEPS75514  Corylus californica P. F. Yorks 1975-3-9 376 Contra Costa N of Briones Reservoir, ca. 1.6 km S of Bear Creek Road on Hampton Road Hampton Road Natural Reserve 200 Comment
  CAS-BOT-BC169515  Corylus cornuta subsp. californica Alice Eastwood 1914-3-6 s.n. Contra Costa Redwood Canyon 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
  UC31273  Cotula coronopifolia W. H. Brewer 1862-4-25 993 Contra Costa Camp 68 Martinez Comment
  CDA20616  Crassocephalum crepidioides G. F. Hrusa 2006-1-18 16841 a Contra Costa San Francisco Bay Area; San Pablo at Stanton and San Pablo Ave. 0 Comment
  UC692658  Crassula aquatica Mary L. Bowerman 1935-6-21 3154 Contra Costa e. Turtle Rock pool; Mt. Diablo Comment
  UC1948949  Crassula connata William J. Ferlatte, L. Maynard Moe 1970-4-27 1234 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC2027788  Crassula connata Barbara Ertter 1991-5-5 9787 Contra Costa Black Diamond Mines Regional Preserve S of Pittsburg, vernally moist flat at edge of Black Diamond Trail ca. 1/4 mi E of pond Comment
  JEPS22096  Cressa truxillensis G. Thomas Robbins 1958-7-19 3907 Contra Costa ca. 3/4 mi. s. Point San Pablo (Potrero San Pablo, Richmond); San Francisco Bay Comment
  RSA498985  Croton californicus E. E. Stanford 1930-5-30 1533 Contra Costa Near Knightsen. Comment
  CDA32859  Crypsis schoenoides D. G. Kelch 2010-10-5 10 .421 Contra Costa The Delta; Just east of Antioch bridge. Comment
  CDA38798  Crypsis schoenoides D. G. Kelch 2006-8-12 6 .377 Contra Costa Carquinez Strait; Martinez. Along Alhambra Creek near train station. Comment
  UCD59829  Crypsis schoenoides G. F. Hrusa; D. Crowe, R. York 1998-7-17 14718 Contra Costa Sacramento-San Joaquin river delta. East end of Dow Chemical property. 12 Comment
  CAS-BOT-BC190081  Crypsis schoenoides R. E. Frenkel 1964-9-17 864 Contra Costa On Marsh Creek Road at shore of Marsh-Kellogg Creek Reservoir. 45 Comment
  CAS-BOT-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
  RSA0025135  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
  UC2027889  Crypsis schoenoides Barbara Ertter 1996-10-13 15312 Contra Costa West side Mount Diablo, upper part of North Gate Road. Comment
  UC762391  Cryptantha decipiens R. F. Hoover 1938-5-4 3347 Contra Costa Peak E of Tassajero Creek 762 Comment
  UC1818922  Cryptantha flaccida Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14227 Contra Costa Mt. Diablo southeast of Walnut Creek, serpentine knoll ca 1/2 airmile north of Curry Point, grassland, oaks around knoll. . 487 Comment
  CAS-BOT-BC168062  Cryptantha hooveri A. A. Heller 1908-4-16 8888 Contra Costa Sand hills east of Antioch 22 Comment
  UC24711  Cryptantha intermedia unknown 1900-3-24 Contra Costa Oakley Comment
  UC691340  Cryptantha microstachys Mary L. Bowerman 1933-5-25 2183 Contra Costa w end Oyster Ridge (steep n-facing slope, s-face); Mount Diablo 411 Comment
  UC691342  Cryptantha microstachys Mary L. Bowerman 1931-4-4 633 Contra Costa 2 mi (rd) from Mount Diablo w entrance (= North Gate); Mount Diablo Comment
  UC79469  Cryptantha microstachys Katharine Brandegee Apr 1889 Contra Costa Antioch Comment
  POM64396  Cryptantha microstachys C. F. Baker 1903-4-28 2810 Contra Costa Mitchell s Canyon, Mt. Diablo. Comment
  UC2042963  Cryptantha muricata Barbara Ertter with David Gowen and Chris Thayer 2014-4-12 21712 Contra Costa Small ridge on north side of Prospectors GAp Road, just north of Ginochio property on east side of Mount Diablo. Comment
  UC691358  Cryptantha muricata Mary L. Bowerman 1931-5-7 808 Contra Costa North Peak Mount Diablo Comment
  UC691359  Cryptantha muricata Mary L. Bowerman 1933-4-26 1914 Contra Costa North Peak ridge, ese of the peak, s-face Mount Diablo 609 Comment
  SEINET10456545  Cryptantha muricata John T. Middleton 1936-4-6 Middleton UMO 29969 Contra Costa Brentwood. Comment
  UC2028057  Cryptantha muricata Barbara Ertter, Tony Morosco 1998-4-12 16017 Contra Costa Mount Olympia on north side of Mount Diablo, around rocks at summit. Comment
  JEPS108227  Cryptantha nevadensis David Gowen 2005-5-6 283 Contra Costa Mt. Diablo State Park. Rocky outcrops on the south side of North Peak. Comment
  UC691392  Cryptantha nevadensis var. rigida Mary L. Bowerman 1931-5-7 808 a Contra Costa North Peak Mount Diablo Comment
  CAS-BOT-BC224390  Cuscuta californica James McMurphy 1908-10-18 s.n. Contra Costa Antioch Comment
  CDA7755  Cuscuta japonica Niang 2008-2-13 PDR# 1454473 Contra Costa Carquinez Strait; Rodeo, 2 California St. 0 Comment
  UC562677  Cuscuta subinclusa Joseph P. Tracy 1932-9-10 10789 Contra Costa Franklin Canyon 152 Comment
  CAS-BOT-BC299742  Cynara cardunculus John Thomas Howell 1953-3-15 28922 Contra Costa Danville Comment
  OBI73070  Cynara cardunculus subsp. flavescens David J. Keil, with Barbara Ertter et al. 2000-6-18 28817 Contra Costa Mount Diablo State Park. North Gate Road. Ca. 0.5 miles south of park boundary 195 Comment
  JEPS100021  Cynodon dactylon S. O'Neil 2003-6-24 SEO 40 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC692432  Cynodon dactylon Mary L. Bowerman 1936-8-17 3526 Contra Costa Sulphur Spring in Pine Canyon Mount Diablo; , Sulphur Spring in Pine Canyon 137 Comment
  JEPS111843  Cynoglossum grande D. G. Kelch 2005-2-28 05 .10 Contra Costa Vaca Canyon Alhambra Valley Road 165 Comment
  UC1063875  Cynoglossum grande R. W. Lundh 1933-3-14 213 Contra Costa 3 1/2 mi. n. Lafayette (Canada del Hambre); Concord Quad., Canada del Hambre 152 Comment
  UCR7818  Cynoglossum grande Wm. Horn Jr. 1964-2-26 640226- 2 Contra Costa San Francisco Bay Region, Flicker Ridge, 1.5 mi SW of Moraga 183 Comment
  SEINET3909439  Cyperus eragrostis T. Morley 1940-12-3 90 Contra Costa Banks at upper end of San Leandro Lake near mouth of Redwood Creek.; 0 130 Comment
  UC698543  Cyperus eragrostis Thomas Morley 1940-11-21 84 Contra Costa at upper end where Redwood Creek enters the lake San Leandro Lake 129 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
  CAS-BOT-BC114618  Cyperus eragrostis Walter Knight; Wayne Roderick; Stephen W. Edwards; B. Doyle 1978-9-19 3264 Contra Costa Browns Island, South Landing. Comment
  UC2013054  Cyperus eragrostis Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14919 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  UC2046350  Cyperus involucratus Barbara Ertter 2000-9-17 17524 Contra Costa Cerrito Creek at base of Albany Hill. Comment
  UC692656  Cypselea humifusa Mary L. Bowerman 1935-9-13 3337 Contra Costa Mount Diablo, Hidden Pond Hidden Pond; Mount Diablo, Hidden Pond Comment
  UC1446057  Cystopteris fragilis Alan Smith with Ed Lee 1979-4-25 732 Contra Costa trail beyond Devil's Elbow toward saddle between Mt Diablo and North Peak; n side Mt. Diablo 1066 Comment
  CDA23109  Cytisus scoparius D. G. Kelch, D. A. Weinstein 2008-4-25 8 .08 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
  JEPS107132  Cytisus scoparius Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14678 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay, northeast corner of area. Comment
  CDA42428  Cytisus striatus D. G. Kelch, Vince Guise 2012-7-26 12 .236 Contra Costa Wildcat Canyon Park, Alvarado Unit. Comment
  JEPS100018  Dactylis glomerata S. O'Neil 2003-5-8 SEO 33 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS21826  Danthonia californica Louise Elsenius 1958-5-17 6 Contra Costa ne Terrace-Bates intersection; El Cerrito 60 Comment
  UC1790262  Datura stramonium Rudolf Schmid 2005-8-15 2005 -2 Contra Costa 16 Edwin Fr., Kensington, CA 94707-1022 169 Comment
Read comments Apr 2 2012
  JEPS102890  Datura wrightii Barbara Ertter with Tony Morosco 1998-10-18 16435 Contra Costa Lime Ridge Recreaton Area, NE corner Mount Diablo 182 Comment
  JEPS111615  Daucus pusillus D. G. Kelch 2004-5-9 04 .206 Contra Costa Crockett - Upper Edwards Canyon, above Crockett Blvd 160 Comment
  UC691894  Daucus pusillus Mary L. Bowerman 1931-5-21 878 Contra Costa Curry-Cave Point trail Mt. Diablo; , Curry-Cave Point trail 304 Comment
  UC691895  Daucus pusillus Mary L. Bowerman 1935-5-16 2990 Contra Costa at end of rd. Russelman Park; Mt. Diablo, Russelman Park Comment
  JEPS111707  Deinandra corymbosa D. G. Kelch 2004-5-7 04 .179 Contra Costa Ca ada del Cierbo Ca ada del Cierbo 40 Comment
  UCD32433  Deinandra corymbosa Beecher Crampton 1950-6-20 596 Contra Costa Contra Costa County, 1 mile north of Richmond, Triangle Court. Comment
  UCD36025  Deinandra corymbosa Beecher Crampton 1949-6-5 470 Contra Costa along Highway 40, Pinole to San Pablo, above Garrity Creek, on top of West Hills. 30 Comment
  CAS-BOT-BC294014  Deinandra kelloggii Dr. A. Kellogg 1870-4-22 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC294017  Deinandra kelloggii Peter Rubtzoff 1951-10-7 s.n. Contra Costa Along lower San Joaquin River, east of Antioch Comment
  SEINET3147522  Deinandra kelloggii K. Brandegee 1907-5-5 19 Contra Costa Near Antioch Comment
  UC34625  Deinandra kelloggii Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  UC88930  Deinandra kelloggii unknown 1883-7-1 Contra Costa Antioch Comment
  JEPS105695  Deinandra lobbii David Gowen 2004-5-29 101 Contra Costa Lime Ridge Open Space. Summit area just south of the antenna facility. Comment
  UC2028960  Deinandra lobbii Barbara Ertter with Brad Olson et al. 2000-6-2 17309 Contra Costa Brushy Peak Regional Preserve NE of Livermore, dry edge of alkali flat. Comment
  UC635349  Delphinium H. L. Mason 1925-3-10 1301 Contra Costa Mount Diablo; along lower canyon slopes Comment
  LA207422  Delphinium hansenii H. Lewis; Carl Epling 1947-5-4 703 Contra Costa Marsh Creek Road, 5.8 mi. E of Creek Park Rd Comment
  RSA148112  Delphinium hansenii Harlan Lewis, C. Epling 1946-5-5 605 Contra Costa 0.5 miles S of Somersville Comment
  UC692144  Delphinium hesperium Mary L. Bowerman 1931-5-2 786 Contra Costa foot Eagle Point Ridge; Mount Diablo Comment
  UC2028329  Delphinium hesperium subsp. hesperium Barbara Ertter with Richard K. Brummitt 1998-5-13 16137 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, head of SE branch of Loughler Loop Trail. Comment
  LA38169  Delphinium hesperium subsp. pallescens Lewis; Mehlquist 455 Contra Costa Just E of the Antioch Golf Couse Comment
  POM203038  Delphinium hesperium subsp. pallescens J. T. Howell 1934-4-8 11824 Contra Costa South of Antioch Comment
  SEINET12099569  Delphinium nudicaule J. G. Lemmon s.n. Contra Costa American Valley and Mt. Diablo 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
  CAS-BOT-BC116455  Delphinium patens subsp. patens H. L. Mason 1925-3-10 1301 Contra Costa Mount Diablo Comment
  UC692091  Delphinium patens subsp. patens Mary L. Bowerman 1931-5-16 860 Contra Costa w flank Ransom Point ridge; Mount Diablo, Meridian Peak summit Comment
  UC2027926  Delphinium patens subsp. patens Barbara Ertter with Linda Vorobik 2001-3-24 17571 Contra Costa Lime Ridge Open Space east of Walnut Creek, eastern edge overlooking Crystal Springs subdivision. Comment
  UC909543  Delphinium patens subsp. patens J. Ewan 1934-4-8 8754 Contra Costa South Fork Marsh Creek Morgan Territory (slope) 243 Comment
  LA93067  Delphinium recurvatum Lewis; 1963-4-11 1337 Contra Costa Byron Hot Springs Rd Comment
  RSA624911  Delphinium recurvatum John A. Churchill 1974-4-15 s.n. Contra Costa Between Route K4 and railroad at Holey Road Comment
  CAS-BOT-BC11023  Dendromecon rigida W. W. Carruth 1907-5-1 s.n. Contra Costa Moraga Valley Comment
  HSC8594  Dendromecon rigida D. A. Shally 1965-4-18 32 Contra Costa Canyon, 1.5 mi. NE of Canyon Store on 'fire trail Comment
  CDA31667  Deschampsia danthonioides D. G. Kelch, A. G. Murdock 2005-3-25 05 .-095 Contra Costa Carquinez Strait Region; Fernandez Ranch. West of Christie Road, south of I-4 (behind golf course) and north of Pinole Peak. Comment
  UC650562  Deschampsia danthonioides Ira L. Wiggins 1930-4-17 4576 Contra Costa 1/4 mi. s. Byron Comment
  UC1126502  Dicentra chrysantha H. S. Yates 1934-9-2 4071 Contra Costa 1 mi sw Mt. Diablo; Mt. Diablo Quad. 762 Comment
  CDA29039  Dichelostemma capitatum D. G. Kelch 2006-5-7 6 .158 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  JEPS64178  Dichelostemma capitatum Adele Grant Mar 1914 Contra Costa Antioch Comment
  CHSC21611  Dichelostemma capitatum subsp. capitatum Willis Ball 1975-2-23 442 Contra Costa In area #2. Ca. 50 yds sw of main parking lot. Contra Loma Regional Park. 45 Comment
  UC1948965  Dichelostemma capitatum subsp. capitatum William J. Ferlatte, L. Maynard Moe 1970-4-27 1250 Contra Costa San Francisco Bay: Red Rock Island Comment
  RSA0068485  Dichelostemma capitatum subsp. capitatum Katie Gallagher, Nick Jensen 2014-4-26 190 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  UC1133994  Dichelostemma congestum C. M. Belshaw 1936-5-9 2074 Contra Costa 2.25 mi e Clayton; Mt. Diablo Quad. 381 Comment
  UC692031  Dichelostemma congestum Mary L. Bowerman 1931-4-11 711 Contra Costa Pine Canyon, near mouth Mount Diablo Comment
  CAS-BOT-BC150330  Diplacus aurantiacus Alice Eastwood 1921-4-18 10287 Contra Costa Antioch Comment
  CAS-BOT-BC151950  Diplacus douglasii John Thomas Howell 1941-4-6 16177 Contra Costa Near Deer Flat, Mt. Diablo Comment
  CAS-BOT-BC121841  Dirca occidentalis Howard E. McMinn 1925-1-1 s.n. Contra Costa Head of San Leandro Creek Comment
  CAS-BOT-BC121843  Dirca occidentalis Frank Walton Gould 1940-2-8 864 Contra Costa Grizzly Peak 289 Comment
  JEPS111909  Dirca occidentalis Dean G. Kelch and Andrew G. Murdock 2003-3-2 DGK 03 .038.C. Contra Costa Crockett - Edwards Canyon. At top of Crockett Blvd. East of Cummings Skyway. Comment
  LA209791  Dirca occidentalis Chas M. Belshaw; 1935-3-3 372 Contra Costa San Pablo Reservoir, NE face of Bald Peak Comment
  SEINET6957400  Dirca occidentalis Lorin I. Nevling 1996-2-16 345 Contra Costa Redwood Regional Park. Moon Gate Trail, right branch about 200 yards from gate. Gate is across from 9383 Skyline Boulevard. "Western Leatherwood." Comment
  UC635720  Dirca occidentalis H. L. Mason 1926-3-28 2800 Contra Costa Glory Hole Redwood Canyon Comment
  UCSB27473  Dirca occidentalis Havlik, Neil 1969-7-10 Contra Costa Along the West Ridge Trail about one-half mile from Skyline Gate, Redwood Regional Park, Oakland Hills 396 Comment
  JEPS112508  Disporum hookeri A. G. Murdock 2003-6-2 83 Contra Costa Franklin Canyon - McHarry Ranch Rd. 137 Comment
  UC3564  Disporum hookeri unknown 1862-5-16 1099 Contra Costa s of Mount Diablo Comment
  UC692001  Disporum hookeri Mary L. Bowerman 1931-3-22 606 Contra Costa Mount Diablo, e fork Alamo Canyon Alamo Canyon; Mount Diablo, Alamo Canyon Comment
  CAS-BOT-BC208655  Distichlis spicata Walter Knight; Joanne Dean 1978-8-14 3192 Contra Costa Browns Island Comment
  UCD64380  Distichlis spicata var. stolonifera A. A. Beetle 1941-6-24 1752 Contra Costa Point Richmond on San Francisco Bay. Comment
  JEPS128149  Dittrichia graveolens Eric Wrubel, Robert Steers 2010-10-1 NPS 1 Contra Costa Joh Muir National Historic Site, Martinez. Mount Wand trailhead. Comment
  CHSC21631  Dodecatheon clevelandii subsp. patulum Willis Ball 1975-3-9 494 Contra Costa Contra Loma Regional Park. In area #8. On n facing slope near top of hill ca. 500 yds s of main parking lot ca. 750 yds w of Contra Loma Blvd. 149 Comment
  JEPS102896  Dodecatheon clevelandii subsp. patulum Barbara Ertter 1998-2-15 15918 Contra Costa Haystack Hill N of Borges Ranch Mount Diablo, Shell Ridge Recreation Area Comment
  HSC101959  Dodecatheon hendersonii Nikolaus Gillen, Michelle Bihler 2014-3-20 11 Contra Costa Mount Diablo State Park. Eagle Peak Trail. 649 Comment
  JEPS9520  Dodecatheon hendersonii W. L. Jepson 1923-3-11 9848 Contra Costa Mt. Diablo 396 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
  UC673401  Dodecatheon hendersonii Herbert L. Mason 1929-3-15 5047 Contra Costa s Nortonville; s of Nortonville Comment
  POM287494  Dodecatheon hendersonii subsp. cruciatum Lyman Benson 1931-3-18 2666 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 Comment
  POM203314  Dodecatheon hendersonii subsp. cruciatum J. T. Howell 1931-3-10 5756 Contra Costa East side of Mt. Diablo 7 miles from Clayton on Livermore road. Comment
  JEPS22728  Downingia insignis Rimo Bacigalupi with Drs. L. Constance and R. Alava 1958-6-6 6366 Contra Costa 3 mi s Byron (between railroad tracks and the highway to Tracy) Comment
  POM148045  Downingia insignis Alice Eastwood 1939-5-19 14444 Contra Costa Byron Springs. Comment
  UC765619  Downingia insignis R. F. Hoover 1937-5-14 2117 Contra Costa Bryon Hot Springs Comment
  UC909625  Downingia insignis Kay H. Beach 1941-4-30 1082 Contra Costa Comment
  UCD32386  Downingia ornatissima Beecher Crampton 1950-4-22 530 Contra Costa Contra Costa County, 2 miles south of Antioch, on road from Antioch to Lone Tree Valley, in shallow depression along roadside. 60 Comment
  UCR196232  Downingia pulchella Beecher Crampton 1950-4-22 535 Contra Costa Concord Valley, between Hwy 4 and Buchanan Field (airport) 15 Comment
  JEPS22441  Downingia pulchella Margaret Mallory 1958-5-3 51 Contra Costa West Sherman Acres 15 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-BC70861  Dryopteris arguta O. N. Sanford 1878-11-24 s.n. Contra Costa Mt. Diablo Comment
  JEPS100162  Dryopteris arguta A. Langston 2003-6-19 AL 50 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  SDSU12953  Dudleya cymosa subsp. cymosa Darren Burton 1998-8-18 18 VIII1998a Contra Costa Mt. Diablo open space recreational area, north of Mt. Diablo State Park. Along trail to falls, from Regency Rd. entrance, Clayton. 472 Comment
Read comments Oct 23 2014
  UC692560  Dudleya cymosa subsp. paniculata Mary L. Bowerman 1931-6-17 925 Contra Costa e side Riggs Canyon Comment
  CAS-BOT-BC197107  Echinochloa crus-galli D. E. Breedlove 1970-9-3 17685 Contra Costa On Sierra Vista Way. Lafayette Comment
  UC1050510  Echium fastuosum N. Floy Bracelin 1941-4-20 1215 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC2027964  Ehrendorferia chrysantha Barbara Ertter 1997-8-24 15771 Contra Costa Mount Diablo, near first corner on Summit Road below Toyon Campground. Comment
  CAS-BOT-BC197293  Ehrharta erecta Catherine Best 1990-6-3 s.n. Contra Costa On Ralston Ave. in the hills above Richmond Comment
  JEPS45767  Elatine heterandra W. L. Jepson 1891-5-22 13954 Contra Costa Walnut Creek 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
  JEPS123456  Eleusine tristachya Zoya Akulova-Barlow 2011-7-27 s.n. Contra Costa Along Bear Creek Rd. Comment
  UC1950090  Elodea canadensis Barbara Ertter with Brad Olson 1991-9-28 10841 Contra Costa at S end of reservoir; San Pablo Reservoir between Orinda and El Sobrante Comment
  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
  UC1789176  Elymus glaucus Barbara Ertter 2002-6-16 17953 Contra Costa Richmond Field Station, southwest end of overgrown meadow near boundary with park, edge of thick growth facing fence. Comment
  UC692430  Elymus glaucus Mary L. Bowerman 1935-5-3 2964 Contra Costa Mount Diablo; Sloan Rd 487 Comment
  UCD62489  Elymus multisetus P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UCD62502  Elymus multisetus Beecher Crampton 1956-5-14 3425 Contra Costa Above Port Costa Brick Works, 4 miles west of Martinez on the road to Crockett. Comment
  CAS-BOT-BC228538  Elymus multisetus Mary L. Bowerman 1935-5-25 3067 Contra Costa Mount Diablo. Meridian Peak south of the summit 1066 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
  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
  UC1819004  Elymus trachycaulus subsp. trachycaulus Barbara Ertter, Mary L. Bowerman 1994-6-19 12855 a Contra Costa Mt. Diablo State Park east of Walnut Creek; scrub oak thicket north of road, north of lower summit parking lot, next to drainage on north facing slope. Comment
  JEPS1582  Emmenanthe penduliflora W. L. Jepson 1921-5-22 9205 Contra Costa .66 way to summit Mt. Diablo Comment
  JEPS78615  Epilobium brachycarpum Walter Knight, L. R. Heckard, and Bert Johnson 1978-9-28 3296 Contra Costa South Landing Browns Island Comment
  UC692458  Epilobium brachycarpum Mary L. Bowerman 1932-10-1 1600 Contra Costa ridge s Uncle Sam Canyon (w base of point, 200 ft above canyon bottom); Mount Diablo, Eagle Point 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
  UC692518  Epilobium brachycarpum Mary L. Bowerman 1938-9-11 3712 Contra Costa Curry Canyon Mount Diablo (bank of stream) 243 Comment
  UC204068  Epilobium canum subsp. canum A. D. E. Elmer July, 1903 4620 Contra Costa Mount Diablo Comment
  UC634754  Epilobium canum subsp. canum H. L. Mason 1924-11-23 1169 Contra Costa Las Trampas Ridge Comment
  UC692453  Epilobium canum subsp. canum Mary L. Bowerman 1930-8-24 430 Contra Costa Mitchell Canyon Mount Diablo (at lower edge of chaparral where it extends nearly to streambed) Comment
  JEPS111564  Epilobium ciliatum subsp. ciliatum A. G. Murdock 2004-5-28 295 Contra Costa Refugio Valley 120 Comment
  UC1191729  Epilobium ciliatum subsp. ciliatum Malcolm A. Nobs and S. Galen Smith 1949-7-8 944 Contra Costa 4 mi n Kingston; Otto's Black Bass Resort Comment
  UC2070464  Epilobium ciliatum subsp. ciliatum Barbara Ertter, Diane Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10699 Contra Costa Browns Island N of Pittsburg near confluence of Sacramento & San Joaquin rivers opposite Pittsburg Marina. Comment
  UCD105799  Epilobium ciliatum subsp. ciliatum Terri Williamson 1990-5-22 72 Contra Costa 212 Poshard St. Pleasant Hill. 12 Comment
  CDA9494  Epilobium cleistogamum D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .218 Contra Costa Byron Airport. Comment
  UC19940  Epilobium densiflorum Bolander 6403 Contra Costa Mt. Diablo Comment
  UC615553  Epilobium densiflorum Beryl O. Schreiber 1933-10-5 936 Contra Costa road to Mount Diablo; marshy ground Comment
  UC692440  Epilobium minutum Mary L. Bowerman 1935-5-18 3022 Contra Costa nw-facing slope across road and a little e of parking area; Mount Diablo 1066 Comment
  UC2070524  Epipactis gigantea Barbara Ertter with David Gowen, J. Ginochio, M. Park, S. Matson, A. Moore, S. D'Alcamo, J. Greenhouse, K. Kersh and J. Gawthrup 2005-5-8 18565 Contra Costa Long Ridge on west side of Mount Diablo, stringer below Moses Rock Spring on Burma Road. Comment
  UC692096  Epipactis gigantea Mary L. Bowerman 1931-5-28 906 Contra Costa Castle Rock Ranch Mount Diablo, Pine Canyon (e end, gully to s, on dry waterfall between two pools) Comment
  UCD138951  Epipactis gigantea Terri Williamson 1990-6-2 89 Contra Costa 212 Poshard Street, Pleasant Hill. 12 Comment
  UC692135  Equisetum X ferrissii Mary L. Bowerman 1938-9-17 3720 Contra Costa Willow Spring; Mt. Diablo Comment
  UC692076  Equisetum hyemale subsp. affine Mary L. Bowerman 1935-3-16 2744 Contra Costa e fork Arroyo del Cerro (10 ft below spring); Mt.Diablo 289 Comment
  UC692134  Equisetum laevigatum Mary L. Bowerman 1931-5-16 864 Contra Costa Lower Silver Spring; Mt. Diablo 853 Comment
  POM300618  Equisetum laevigatum Mary L. Bowerman 1931-10-31 1063 Contra Costa South Road, in bend of road a little below junction. Mt Diablo. Comment
  JEPS111943  Equisetum telmateia subsp. braunii D. G. Kelch 2003-8-13 03 .130 Contra Costa Pinole Creek 68 Comment
  RSA118089  Eragrostis curvula J. T. Howell 1954-9-5 30026 Contra Costa Along road, Marsh Creek Springs Park Comment
  UCD63093  Eragrostis curvula Beecher Crampton 1965-9-29 7526 Contra Costa 5 miles south of Brentwood Vasco Road and Camino Vaqueros. Comment
  UCD63814  Eragrostis mexicana subsp. virescens Beecher Crampton 1965-9-29 7531 Contra Costa 1 mile south of Oakley, Cypress Road and O' Hara Ave. Comment
  JEPS31295  Ericameria linearifolia Elsa Kraeger 1926-3-7 Contra Costa w side Mt. Diablo Comment
  POM196004  Ericameria linearifolia R. Raven 1929-3-31 s.n. Contra Costa Marsh Creek Canyon Comment
  POM56950  Ericameria linearifolia C. F. Baker 1903-4-28 2942 Contra Costa Mitchell's Canyon, Mt. Diablo. Comment
  UC672254  Ericameria linearifolia H. L. Mason 1926-3-7 2707 Contra Costa near summit Mount Diablo Comment
  JEPS79321  Erigeron foliosus var. franciscensis Edward Lee with Annetta Carter 1935-8-17 1633 Contra Costa Antioch sand-dunes 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
  CAS-BOT-BC295516  Erigeron miser Joseph Andorfer Ewan 1936-7-5 9735 Contra Costa Wildcat Creek Comment
  UC1779709  Eriobotrya japonica Rudolf Schmid 1997-5-21 1997 -11 Contra Costa Hillside Natural Area, El Cerrito; some distance NW of King Ct. entrance, near W side of road, in drainage gully north of the Salix-Corylus grove. 126 Comment
  RSA401488C  Eriodictyon californicum Cora Mae Life 1923-7-4 95 Contra Costa Mt Diablo. Comment
  CAS-BOT-BC250381  Eriogonum gracile Mary L. Bowerman 1932-8-27 1524 Contra Costa Mount Diablo. South of Turtle Rock Comment
  CAS-BOT-BC250386  Eriogonum gracile Lewis S. Rose 1955-10-17 55187 Contra Costa Antioch 15 Comment
  JEPS56891  Eriogonum gracile W. L. Jepson 1898-10-18 Contra Costa Deer Flat Mt. Diablo Comment
  UC692049  Eriogonum gracile Mary L. Bowerman 1930-9-27 468 Contra Costa West base spring Mount Diablo Comment
  CAS-BOT-BC250383  Eriogonum gracile John Thomas Howell 1932-10-2 10789 Contra Costa Marsh Creek Road southwest of Brentwood 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
  UC692048  Eriogonum gracile var. gracile Mary L. Bowerman 1931-9-12 1038 Contra Costa spur jutting into west fork of Mitchell Canyon Mount Diablo, Mitchell Canyon 838 Comment
  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
  CAS-BOT-BC268906  Eriogonum nudum var. auriculatum Mary L. Bowerman 1932-9-17 1578 Contra Costa Mount Diablo. Donner Canyon, west branch. (Below fork of west branch.) 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
  RSA273155  Eriogonum nudum var. psychicola Glenn A. Gorelick 1967-4-13 s.n. Contra Costa Along Sacramento River behind Little Corral Bar, 1.5 mile east of downtown Antioch Comment
  UC692195  Eriogonum nudum var. pubiflorum Mary L. Bowerman 1932-9-17 1586 Contra Costa Donner Canoyn, w fork toward mouth Mount Diablo Comment
  CAS-BOT-BC253092  Eriogonum roseum R. F. Hoover 1940-11-30 4699 Contra Costa 2 mi. S of Antioch Comment
  JEPS105714  Eriogonum roseum David Gowen 2004-8-26 156 Contra Costa Black Diamond Mines Regional Preserve; 3/8 mi from parking area on Frederickson Lane, on Old Homestead Loop, just SW of its junction with the Homestead Trail Comment
  UC6491 Image available Eriogonum truncatum W. H. Brewer 1862-5-29 1186 Contra Costa Camp 71, Marsh's Ranch, Contra Costa Co. Comment
  CAS-BOT-BC267872  Eriogonum umbellatum var. bahiiforme A. D. E. Elmer 1903-7-1 4547 Contra Costa Mount Diablo Comment
  CAS-BOT-BC262352  Eriogonum vimineum John Thomas Howell 1955-8-24 30903 Contra Costa Near summit of South Peak, Mt. Diablo Comment
  UC2027777  Eriophyllum jepsonii Barbara Ertter, Holly Forbes 1997-4-20 15562 Contra Costa north base of Mount Diablo, Eagle Peak Trail on NE side of Eagle Ridge below Twin Peaks. Comment
  CAS-BOT-BC300963  Eriophyllum lanatum var. achilleoides Alice Eastwood 1921-6-11 10609 Contra Costa Mt. Diablo Comment
  JEPS124456  Eriophyllum lanatum var. achilleoides Daniel Slakey with CNPS Volunteers 2015-6-13 131 Contra Costa Mt. Diablo State Park. Both above and below Burma Road; southwest-facing bank above fire trail. Comment
  UC507126  Eriophyllum lanatum var. achilleoides Lincoln Constance 1933-6-25 E 94 Contra Costa near the se base of Mount Diablo (se slope) Comment
  UC691666  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1935-5-30 3097 d Contra Costa between the two ridges which converge at Twin Peaks (Eagle Point ridge) Mount Diablo 350 Comment
  UC691668  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1935-5-30 3097 b Contra Costa Eagle Point ridge = between the two n ridges which converge at Twin Peaks; Mt. Diablo, Eagle Point ridge 350 Comment
  UC691723  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1935-5-30 3097 c Contra Costa between the two ridges which converge at Twin Peaks (Eagle Point ridge) Mount Diablo 350 Comment
  CAS-BOT-BC300966  Eriophyllum lanatum var. achilleoides L. Constance 1933-6-25 E 94 Contra Costa Near the base of Mount Diablo Comment
  CAS-BOT-BC300977  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1933-5-22 2163 Contra Costa Mount Diablo. Cave Point ridge Comment
  UC1252143  Eriophyllum staechadifolium Dr. Jerry Powell 1964-6-7 412 Contra Costa nw Richmond; Point Molate Comment
  UC2032830  Eriophyllum staechadifolium Doran, Andrew Scott 2012-3-20 700 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  JEPS100095  Erodium cicutarium G. Smick 2003-4-1 GAS 105 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1130310  Erodium macrophyllum C. M. Belshaw 1936-5-15 2126 Contra Costa 1.75 mi ne Somerville; Mt. Diablo Quad. 152 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
  JEPS100094  Erodium moschatum G. Smick 2003-4-1 GAS 104 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site 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
  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
  CDA29692  Eryngium armatum D. G. Kelch, D. A. Weinstein 2009-7-15 9 .494 Contra Costa Carquinez Strait; Point Pinole. Comment
  JEPS78607  Eryngium articulatum Walter Knight, L. R. Heckard, and Bert Johnson 1978-9-28 3291 Contra Costa Browns Island, Botany Cove Comment
  UCD127482  Eryngium articulatum Walter Knight; Irja Knight et al. 1978-9-5 3235 Contra Costa Browns Island. Botany Cove. Comment
  CDA38314  Eryngium jepsonii D. G. Kelch 2003-6-22 3 .091 Contra Costa Carquinez Strait Region; Pt. Costa - Shore: Above Pt. Costa (above road between McEwen and EBRP staging area). Comment
Read comments Dec 13 2016
  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
  CHSC67627  Eryngium vaseyi James D. Jokerst 1989-3-28 3062 Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. Comment
  UC1190974  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
  UC1745504  Eryngium vaseyi Annetta M. Carter, Tom Morley, Malcolm Nobs 1951-3-25 3006 Contra Costa 3.3 mi. S of Byron. Comment
  UC20994  Eryngium vaseyi J. Burtt Davy 1900-3-24 6524 Contra Costa salt marsh near Stege Comment
  SEINET12118291  Eryngium vaseyi var. castrense L. Constance, Alava, R.; Bacigalupi, R. 1958-1 3661 Contra Costa 3 mi SE of Byron, San Joaquin Valley Comment
  CAS-BOT-BC40774  Erysimum capitatum J. H. Thomas 1953-4-25 3010 Contra Costa Antioch sand hills along San Joaquin River, 0.2 mile west of Antioch Bridge. Comment
  CAS-BOT-BC40775  Erysimum capitatum James McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  UC1034902  Erysimum capitatum G. B. and R. P. Rossbach 1938-6-5 859 Contra Costa steep southerly slope near summit; Mt. Diablo Comment
  UC691089  Erysimum capitatum Mary L. Bowerman 1930-6-14 322 Contra Costa open places near summit (nw exposure); Mount Diablo, Meridian Peak Comment
  CAS-BOT-BC40763  Erysimum capitatum John Thomas Howell 1926-3-7 1672 Contra Costa Mount Diablo. Near the summit on south side. Comment
  UC762935  Erysimum capitatum var. capitatum R. F. Hoover 1937-5-14 2111 Contra Costa Antioch sand-dunes Comment
  UCD114997  Erysimum capitatum var. capitatum R. F. Hoover 1935-3-10 s.n. Contra Costa Antioch. Comment
  CAS-BOT-BC402980  Eschscholzia californica Mary L. Bowerman 1933-5-3 1975 Contra Costa Mount Diablo. Due south of Meridian Peak summit 731 Comment
  CAS-BOT-BC402991  Eschscholzia californica Philip A. Munz 1947-10-8 12190 Contra Costa Antioch 12 Comment
  CAS-BOT-BC402993  Eschscholzia californica M. K. Curran 1886-5-1 s.n. Contra Costa Antioch Comment
  UC692105  Eschscholzia californica Mary L. Bowerman 1933-5-3 1973 Contra Costa due s Meridian Peak summit (on hillside above flat); Mount Diablo Comment
  UC125913  Eschscholzia californica Katharine Brandegee 1907-6-16 Contra Costa bet. Antioch and Marsh Creek Comment
  CAS-BOT-BC91576  Eschscholzia rhombipetala Brandegee 1889-4-1 s.n. Contra Costa Antioch. Comment
  UC1789210  Eucalyptus globulus Barbara Ertter 2002-5-11 17840 Contra Costa lower Emmons Canyon just outside of Mount Diablo State Park boundary. Comment
  UC1789209  Eucalyptus rudis Barbara Ertter with Tony Morosco 1998-10-18 16427 Contra Costa Lime Ridge quarry area just south of Ygnacio Vally Road (area subsequently converted into housing development 121 Comment
  UC2028162  Eucalyptus sideroxylon Barbara Ertter with Laura Fujii 1999-3-7 16483 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, near Alvarado Staging area at NW end of park, along hiking road. Comment
  UC1618208  Eucrypta chrysanthemifolia var. chrysanthemifolia Barbara Ertter 1991-6-1 10078 Contra Costa hills w Danville (e side of Wind Caves on Sycamore Trail to Devil's Hole); Las Trampas Regional Wilderness, Wind Caves 548 Comment
  UC880659  Eucrypta chrysanthemifolia var. chrysanthemifolia Lewis S. Rose 1941-5-15 41232 Contra Costa w slope Mt. Diablo 396 Comment
  UC2028112  Eucrypta chrysanthemifolia var. chrysanthemifolia Barbara Ertter with Christopher Baysdorfer 1998-5-10 16110 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, along Ohlone Trail. Comment
  CDA4814  Euphorbia helioscopia E. Meyer 1978-10-2 Contra Costa M. V. Nursery, 191 Parr Boulevard, Richmond. 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
  CHSC75081  Euphorbia peplus Roger Thom 1987-5-24 15 Contra Costa 1510 Carmel Dr. Walnut Creek. Rose garden. 30 Comment
  CDA34210  Euphorbia spathulata D. G. Kelch 2011-5-28 11 .538 Contra Costa Carquinez Strait Region.; W of Martinez. N of end of Hillside Pl. Comment
  UCD150901  Euthamia occidentalis James A. Neilson Jr. 1972-10-22 3601 Contra Costa Walnut Creek drainage, near mouth of Walnut Creek. Elevation estimated using Google Earth by label maker. 0 Comment
  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
  CAS-BOT-BC278315  Festuca californica subsp. californica Mary L. Bowerman 1935-5-3 2953 Contra Costa Mount Diablo. Fossil Ridge: Hillside below the Jungle of the Garden Gods Comment
  CAS-BOT-BC278318  Festuca californica subsp. californica Mary L. Bowerman 1931-4-25 757 Contra Costa Mount Diablo. Near junction of south and west roads Comment
  CDA21547  Festuca idahoensis D. G. Kelch 2000-4-9 0 .14 Contra Costa Altamont Hills; 1.5 miles E of Midway on old roadcut between RR tracks and Via Nicolo Road. Comment
  UC2028409  Festuca microstachys Barbara Ertter with Richard K. Brummitt 1998-5-16 16088 Contra Costa Lower Donner Canyon on north base of Mount Diablo, ca. 1/2 miles south of Donner cabin site Comment
  CDA28216  Festuca rubra D. G. Kelch, Andrew G. Murdock 2004-4-11 4 .064 Contra Costa Carquinez Strait; Meadow above Carquinez Scenic Drive between Crockett and Bull Valley Staging Area. Comment
  CDA28219  Festuca rubra A. G. Murdock, D. G. Kelch 2004-5-28 269 Contra Costa Carquinez Strait Region; Pinole Peak. Comment
  JEPS41063  Festuca rubra Rimo Bacigalupi, and L. R. Heckard 1965-5-11 9088 Contra Costa sw of Richmond; San Francisco Bay, Brooks Island Comment
  CAS-BOT-BC384137  Forestiera pubescens subsp. parvifolia John Thomas Howell 1933-3-29 10905 Contra Costa Canyon below Nortonville Comment
  UC2027914  Frangula californica subsp. tomentella Barbara Ertter 2000-9-30 17529 Contra Costa Diablo Foothills Regional Park, Stage Road in Pine Canyon. Comment
  CAS-BOT-BC223391  Fraxinus dipetala Mary L. Bowerman 1935-6-1 3104 Contra Costa Mount Diablo. First small ridge east of Mitchell-Pine divide 975 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
  UCD102397  Fraxinus dipetala 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
  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
  UCD84953  Fritillaria agrestis Chuck Hughes 2010-4-1 225 Contra Costa About 0.6 mile east of Los Vaqueros Road. 305 Comment
  CAS-BOT-BC130353  Fritillaria liliacea Robert F. Hoover 1938-3-8 2819 Contra Costa Berkeley Country Club Comment
  JEPS99505  Fritillaria liliacea Mary Bowerman 1979-4-3 Contra Costa Mount Diablo, Shell Ridge. Comment
  UC1789195  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
  UCR263793  Fumaria capreolata Barbara Ertter 1999-3-21 16486 Contra Costa Central Coast, Miller Knox Regional Park near Point Richmond, southeast of Richmond Ramblers building 15 Comment
  JEPS124467  Galium andrewsii subsp. gatense Daniel Slakey with CNPS Volunteers 2015-7-6 140 Contra Costa Mt. Diablo, along Oak Knoll Trail about 700 meters east of Summit Rd. Comment
  UC1177368  Galium andrewsii subsp. gatense Peter H. Raven 1950-7-5 2478 Contra Costa near summit Mt. Diablo 1097 Comment
  UC691536  Galium aparine Mary L. Bowerman 1932-4-27 1374 Contra Costa canyon w Riggs Canyon; Mount Diablo, Oyster Ridge 289 Comment
  UC691538  Galium aparine Mary L. Bowerman 1930-6-10 310 Contra Costa summit Mount Diablo Comment
  UC691539  Galium aparine Mary L. Bowerman 1931-3-21 590 Contra Costa Sycamore Canyon Mount Diablo 335 Comment
  UC1861822  Galium californicum subsp. californicum Barbara Ertter, Chris Thayer 1995-4-25 14000 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Black Hawk Ridge Rd. at northeast FK of Sycamore Creek, 396 Comment
  JEPS14346  Galium murale L. T. Dempster 1956-4-28 1000 Contra Costa between Village and Crossroads (near creek); Orinda Comment
Read comments Apr 21 2012
  UC691533  Galium porrigens Mary L. Bowerman 1935-5-16 2982 Contra Costa flat at end of road Mount Diablo, Russelman Park 381 Comment
  JEPS112101  Galium porrigens var. porrigens D. G. Kelch 2003-4-3 03 .357 Contra Costa Cummings Skyway 134 Comment
  JEPS6608  Galium porrigens var. porrigens Mary L. Bowerman 1930-6-22 370 Contra Costa Deer Flat Mount Diablo Comment
  JEPS75526  Galium porrigens var. porrigens P. F. Yorks 1975-6-10 434 Contra Costa on Hampton Rd ca 1.4 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  CAS-BOT-BC304345  Gamochaeta pensylvanica Gordon H. True 1975-6-4 7869 Contra Costa Tilden Regional Park Botanic Garden, Tilden Regional Park, Wildcat Canyon, Berkeley Comment
  CAS-BOT-BC200623  Garrya elliptica John Thomas Howell 1926-1-16 1625 Contra Costa Head of San Leandro Canyon, Oakland Hills Comment
  CAS-BOT-BC200633  Garrya elliptica H. E. McMinn 1925-1-1 s.n. Contra Costa Head of San Leandro Creek Comment
  CAS-BOT-BC200636  Garrya elliptica C. H. M. 1919-8-24 s.n. Contra Costa Las Trampas Peak Comment
  CAS-BOT-BC200626  Garrya elliptica W. W. Carruth 1902-4-1 s.n. Contra Costa E. Oakland Hills Comment
  UC692519  Garrya flavescens Mary L. Bowerman 1931-4-25 779 Contra Costa Meridian Peak summit; Mount Diablo Comment
  POM300684  Gastridium phleoides Mary L. Bowerman 1933-6-14 2272 Contra Costa Curry Cave Canyon: Ridge between two main forks. Mount Diablo. Comment
  CDA9420  Gastridium ventricosum D. G. Kelch 2004-5-3 4 .152 Contra Costa Carquinez Strait; Mt Wanda, Martinez. 0 Comment
  CDA42355  Genista monspessulana D. G. Kelch, Vince Guise 2012-7-26 12 .241 Contra Costa Wildcat Canyon Park, Alvarado Unit. Comment
  JEPS112350  Genista monspessulana Dean G. Kelch and Andrew G. Murdock 2004-4-11 04 .077 Contra Costa Crockett - Crolona Heights, County: Contra Costa; Crockett: W base of Crolona heights. Comment
  JEPS111972  Geranium molle D. G. Kelch 2004-5-9 04 .203 Contra Costa Crockett - Edwards Canyon Upper Edwards Canyon 160 Comment
  UC2027819  Geranium molle Barbara Ertter with Holly Forbes 1997-4-20 15547 Contra Costa North base of Mount Diablo, trail to Back Creek from Mitchell Canyon trailhead. Comment
  UC691599  Gilia achilleifolia subsp. achilleifolia Mary L. Bowerman 1935-5-8 2970 Contra Costa Muir Area, Mount Diablo Mount Diablo, Muir Area Comment
  UC908901  Gilia achilleifolia subsp. achilleifolia Herbert L. Mason 1938-5-3 11753 Contra Costa trail between Juniper Camp and Deer Flat (Mount Diablo); , trail bet Juniper Camp and Deer Flat 990 Comment
  UC1084502  Gilia capitata subsp. staminea G. Thomas Robbins 1940-5-19 323 Contra Costa e Antioch (hills bordering San Joaquin River); hills bordering San Joaquin River e of Antioch Comment
  UC691680  Gilia clivorum Mary L. Bowerman 1935-4-19 2865 Contra Costa North Road 6.3 mi from North Gate (Mount Diablo, above Pepperwood Spring); Mount Diablo, above Pepperwood Spring 609 Comment
  UC2029000  Gilia clivorum Barbara Ertter 2000-3-30 16919 Contra Costa North side of Mount Diablo, open rocky area ca halfway down Back Canyon Trail from Murchio Gap. Comment
  UC691625  Gilia clivorum Mary L. Bowerman 1933-5-3 1976 -2 Contra Costa due s summit Mount Diablo (Chaparral burn (1931)); Mount Diablo, due s of summit 731 Comment
  UC449815  Gilia tricolor subsp. diffusa Chestnut and Drew 1889-4-16 Contra Costa Clayton Comment
  JEPS85959  Gilia tricolor subsp. tricolor A. L. Grant 1915-3-14 Contra Costa Antioch 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
  SEINET10464449  Githopsis diffusa subsp. robusta Bowerman 1933-6-7 BOWERMAN 2260 Contra Costa North Peak; Bare rocks by register Comment
  SEINET10840136  Githopsis specularioides Mason 1928-4-29 Mason 4429 Contra Costa Sycamore Canyon, south slope of Mount Diablo Comment
  UCD84951  Glyceria leptostachya Chuck Hughes 2010-3-29 223 Contra Costa About 0.4 mile southeast of Vasco Road. 123 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
  CDA35615  Gnaphalium californicum I. Godwyn 2011-5-12 PDR# 1649778 Contra Costa Richmond; Wildcat Canyon Regional Park, near McBryde Ave. 0 Comment
  CDA5999  Gnaphalium canescens subsp. beneolens D. G. Kelch, A. G. Murdock 2004-9-2 4 .345 Contra Costa Carquinez Strait Region; Martinez -West: Ozol Rock and Scenic Drive. Alhambra Road. South of Green Street. Comment
  CDA6044  Gnaphalium luteoalbum A. G. Murdock, D. G. Kelch 2004-6-4 314 Contra Costa Carquinez Strait Region; Martinez - Train Station. Comment
  RSA721589  Gnaphalium luteoalbum Mary L. Bowerman 1978-6-24 s.n. Contra Costa Mount Diablo. Mitchell Creek, below 'reservoir' 191 Comment
  UCD32381  Godetia amoena var. concolor Beecher Crampton 1950-4-22 523 Contra Costa Contra Costa County, above site of Judsonville, west of old Empire Coal Mine. 167 Comment
  JEPS128776  Gratiola ebracteata Kevin Hintsa 2000-5-28 Contra Costa Chase/Hidden Pond, Mount Diablo State Park. Comment
  CHSC99194  Grindelia camporum var. camporum John Dittes 2006-10-26 1416 Contra Costa San Joaquin Valley (foothills near nw edge); ~2.0 air-miles south of Marsh Creek Reservoir Gauging Station, 1.6 air-mile southwest of intersection of Camino Diablo and Vasco Road; Contra Costa Water District's Los Vaqueros Watershed Mitigation Project Area. 67 Comment
  CAS-BOT-BC305222  Grindelia hirsutula Lewis S. Rose 1930-7-22 s.n. Contra Costa Concord Comment
  CAS-BOT-BC305232  Grindelia hirsutula Walter Knight 1978-8-27 3144 Contra Costa Contra Loma Regional Park 30 Comment
  CDA32858  Grindelia hirsutula D. G. Kelch 2010-10-5 10 .419 Contra Costa The Delta; Just east of Antioch bridge. Comment
  JEPS25135  Grindelia hirsutula G. Thomas Robbins 1959-4-26 4003 Contra Costa s of Castro Point (just n of Richmond-San Rafael Bridge, above shore of San Francisco Bay, dry slopes of Potrero Hills); Potrero Hills, Richmond Comment
  JEPS75304  Grindelia hirsutula L. R. Heckard 1975-11-2 4212 Contra Costa nw side Brooks Island; Richmond Comment
  JEPS97556  Grindelia hirsutula R. D. Stone 645 Contra Costa 3 mi N of Altamont Pass Moller Ranch; Mount Diablo, Altamont Pass, Brushy Creek drainage 152 Comment
  UC630415  Grindelia hirsutula Paule Guiguet and Annetta Carter 1939-8-13 1454 Contra Costa Treat Avenue se Concord 53 Comment
  UC691867  Grindelia hirsutula Mary L. Bowerman 1931-6-2 916 Contra Costa ridge extending n from North Peak (Mount Diablo); , North Peak 822 Comment
  UC984921  Grindelia hirsutula Ira L. Wiggins 1930-4-17 4577 Contra Costa near Byron Comment
  RSA144687  Grindelia stricta var. angustifolia G. Thomas Robbins 1958-10-2 3941 Contra Costa Along Southern Pacific Railroad just W of Carlson Blvd., near Stege railroad siding, Richmond. Comment
  UC117325  Guillenia flavescens T. S. Brandegee May 1892 Contra Costa Antioch Comment
  UC14399  Guillenia flavescens Chesnut and Drew 1889-4-17 Contra Costa Clayton Comment
  UC10945  Guillenia lasiophylla W. H. Brewer 1862-4-24 987 Contra Costa Martinez Comment
Read comments Feb 5 2010
  UC56947  Guillenia lasiophylla H. M. Hall 1900-3-24 579 Contra Costa Briones Valley San Francisco Bay Region Comment
  RSA430115  Guillenia lasiophylla Dr H. de Forest 1930-4-6 s.n. Contra Costa [No locality information provided] Comment
  JEPS79354  Gutierrezia californica Edward Lee with Annetta Carter 1935-8-17 1622 Contra Costa Antioch sand-dunes Antioch Comment
  POM203484  Gutierrezia californica L. 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
  CAS-BOT-BC304581  Gutierrezia californica Mary L. Bowerman 1938-11-12 3729 Contra Costa Mount Diablo. Lime Ridge toward crest of hilllside north of break 152 Comment
  JEPS120272  Hainardia cylindrica Barbara Ertter with David Gowen 2012-6-9 21025 Contra Costa junction of Seaview Trail and road into EBMUD land north of Vollmer Peak,m southeastern Tilden Park in Berkeley Hills 550 Comment
  SEINET11849272  Haplopappus parishii C. W. Sharsmith 1933-1 474 A Contra Costa adjacent to San Pablo Bay, near Carquinez Straits Comment
  UC2032809  Hedera helix Doran, Andrew Scott 2012-3-20 679 Contra Costa Brooks island loading dock, North side of island. Just above high tide mark. Comment
  CAS-BOT-BC306337  Helenium John Thomas Howell 1926-1-16 1626 Contra Costa San Leandro Canyon, Oakland Hills Comment
  UC1561249  Helenium puberulum Barbara Ertter 1989-9-30 8863 Contra Costa East Bay Skyline Nat'l Recreation Trail (=Nimitz Way) just n Tilden Park border (e of El Cerrito); Wildcat Canyon Regional Park Comment
  CAS-BOT-BC309407  Helenium puberulum John Thomas Howell; Gordon H. True 1972-6-29 48932 Contra Costa On Byron Hot Springs Road southeast of Byron Comment
  CAS-BOT-BC305327  Helianthella castanea John Thomas Howell 1931-5-12 6475 Contra Costa Nortonville Comment
  JEPS85476  Helianthella castanea Leonora M. Ellis 1990-5-11 Contra Costa w Alamo (Horseman's Canyon and canyon to the w); Tice Valley 228 Comment
  CAS-BOT-BC223917  Helianthemum scoparium Mary L. Bowerman 1933-3-25 1775 Contra Costa Mount Diablo. Emmons Canyon: (Diablo Stock Farm (Stone Valley) canyon) Comment
  JEPS112356  Helianthus californicus D. G. Kelch 2004-9-2 04 .332 Contra Costa Pacheco Marsh Marsh east of Martinez and I-680 and east of lone tree Marsh. Large perennial along road 5 Comment
  UC2070513  Helianthus californicus Barbara Ertter 2002-8-24 18034 Contra Costa Lower Perkins Canyon on NE base of Mount Diablo. Comment
  CAS-BOT-BC305670  Helianthus gracilentus Mary L. Bowerman 1932-9-24 1592 Contra Costa Mount Diablo. Knoll west of Twin Peaks 457 Comment
  JEPS88686  Helianthus gracilentus Mary L. Bowerman 1932-10-1 1602 Contra Costa Mitchell Canyon Mount Diablo ((1931) burn near stream) Comment
  JEPS99485  Helianthus gracilentus Mary Bowerman 1995-5-21 Contra Costa Mount Diblo. Wall Pt. Trail ca. 1/2 mi. E of Wall Pt. Comment
  SEINET3840820  Heliotropium curassavicum Unknown 2006-8-6 6 .361 Contra Costa Rodeo Creek, Rodeo Creek channel 4 Comment
  UC1063893  Heliotropium curassavicum H. S. Yates 1934-9-2 4073 Contra Costa 1 mi. n.e. Danville; Mt. Diablo Quad. 450 Comment
  UC1584687  Helminthotheca echioides Jerry Powell 1987-7-14 1503 Contra Costa Point Molate Beach Comment
  CAS-BOT-BC305872  Helminthotheca echioides R. E. Frenkel 1964-2-22 365 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  CDA7053  Hemizonia congesta subsp. luzulifolia D. G. Kelch 2006-7-14 6 .333 Contra Costa Between Rte 4 and Carbon Rd. E Rodeo. Comment
  JEPS121012  Hemizonia congesta subsp. luzulifolia D. G. Kelch 2006-7-14 06 .333 Contra Costa Between Rte 4 and Carbon Rd. E Rodeo Comment
  CAS-BOT-BC314865  Hemizonia congesta subsp. luzulifolia John Thomas Howell 1929-9-21 4386 Contra Costa 4 miles west of Clayton Comment
  CAS-BOT-BC314868  Hemizonia congesta subsp. luzulifolia Jean L. Pawek 1964-8-29 608 Contra Costa Tilden Park Comment
  RSA181368  Hemizonia fitchii James I. McMurphy 1908-10-18 s.n. Contra Costa Antioch. Comment
  UCR197900  Hemizonia fitchii Beecher Crampton 1949-7-15 485 Contra Costa Below original site of Judsonville, at head of Lone Tree Valley, along Sand Creek, just before coming to Lee Higgins Empire Ranch 114 Comment
  POM299467  Hemizonia fitchii L. S. Rose 1941-10-13 41464 Contra Costa 1 miles E of Walnut Creek. 50 Comment
  SEINET5126926  Hemizonia kelloggii Kellogg 1870-4-22 s.n. Contra Costa Near Antioch Comment
  RSA81495  Hemizonia luzulifolia subsp. rudis James I. McMurphy 1909-9-24 s.n. Contra Costa 1 mile N of San Ramon. Comment
  SEINET7883353 Image available Hemizonia obconica L. S. Rose 1941-1 41466 Contra Costa 6 mi W of Byron, on Marsh Creek Rd Comment
  RSA81667  Hemizonia parryi subsp. congdonii James I. McMurphy 1909-9-24 s.n. Contra Costa San Ramon Comment
  POM190899  Hemizonia pungens subsp. pungens D. D. Keck 1932-7-7 1736 Contra Costa Just E of Nichols. Comment
  JEPS75522  Heracleum lanatum P. F. Yorks 1974-5-19 160 A Contra Costa n. Briones Reservoir (ca. 1.7 km. s. of Bear Creek Rd. on Hampton Rd. in Hampton Road Natural Reserve); Hampton Road Natural Reserve 180 Comment
  JEPS75523  Heracleum lanatum P. F. Yorks 1974-5-19 160 B Contra Costa n. Briones Reservoir (ca. 1.7 km. s. of Bear Creek Rd. on Hampton Rd. in Hampton Road Natural Reserve); Hampton Road Natural Reserve 180 Comment
  UCD127538  Heracleum maximum R. Tofsrud 1948-1 s.n. Contra Costa Exact location unknonw. Comment
  OBI48583  Hesperevax caulescens Joseph Andorfer Ewan 1936-5-3 9496 Contra Costa Wildcat crk near Orinda road bridge Comment
  CAS-BOT-BC310195  Hesperevax sparsiflora var. sparsiflora Mary L. Bowerman 1931-4-11 688 Contra Costa Mount Diablo. Pine Canyon 121 Comment
  JEPS111742 Image available Hesperevax sparsiflora var. sparsiflora D. G. Kelch 2005-3-25 05 .91 Contra Costa Fernandez Ranch Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak 80 Comment
  JEPS33801  Hesperevax sparsiflora var. sparsiflora W. L. Jepson 1931-4-5 15719 Contra Costa Nortonville 457 Comment
  UC88275  Hesperevax sparsiflora var. sparsiflora M. K. Curran May 1886 Contra Costa Antioch Comment
  UC2027820  Hesperevax sparsiflora var. sparsiflora Barbara Ertter with Stu Garrett 1997-3-29 15536 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  CAS-BOT-BC167442  Hesperolinon breweri Herbert L. Mason 1936-6-14 s.n. Contra Costa Ridge running south of Mount Diablo, head of Marsh Creek Comment
  POM304529  Hesperolinon breweri J. T. Howell 1942-7-19 s.n. Contra Costa Northeast of Deer Flat, Mount Diablo Comment
  UC2028990  Hesperolinon breweri Barbara Ertter 2000-5-14 17000 Contra Costa Donner Canyon on north side of Mount Diablo, serpentinitic sites in general area of junction of Donner Canyon, Cardinet Oaks, and Meridian Ridge roads, edged by Arctostaphylos glauca et al. Comment
  SJSU764  Hesperolinon californicum D. Bernsdorf 1942-5-30 Contra Costa Mt Diablo Comment
  CAS-BOT-BC422502  Hesperomecon linearis C. F. Baker 1903-4-25 2802 Contra Costa Antioch Comment
  JEPS11798  Heterocodon rariflorum Mary L. Bowerman 1935-6-15 3133 Contra Costa Mitchell Canyon; Mount Diablo 640 Comment
  UC186817  Heterodraba unilateralis F. T. Bioletti 1892-1 Contra Costa Byron Comment
  CAS-BOT-BC143646  Heteromeles arbutifolia H. E. McMinn 1925-1-1 s.n. Contra Costa Head of San Leandro Creek Comment
  CDA25927  Heteromeles arbutifolia D. G. Kelch, A. G. Murdock 2003-2-7 3 .038 Contra Costa Carquinez Strait Region; Franklin Canyon. 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
  CAS-BOT-BC143643  Heteromeles arbutifolia W. W. Carruth 1900-6-1 s.n. Contra Costa E. Oakland Hills Comment
  UC87450  Heterotheca oregona var. scaberrima J. W. Congdon Sep 1886 Contra Costa Comment
Read comments Apr 23 2007
  CAS-BOT-BC311213  Heterotheca sessiliflora subsp. echioides Walter Knight 1965-9-7 1166 Contra Costa Antioch sand dunes Comment
  RSA0010319  Heterotheca sessiliflora var. bolanderioides J. C. Semple, B. A. Suripto, T. Ahmed 1990-8-16 9339 Contra Costa Charles Tilden Reg. Park, Vollmer Peak. Comment
  CAS-BOT-BC310908  Heterotheca villosa Niall McCarten; V. I. Dains 1986-1-1 04311257 81 Contra Costa East Contra Costa County. SW corner of Hwy. 4 & Laurel Road near Oakley Comment
  UC14493  Heuchera micrantha Jos. Burtt Davy 1901-4-21 6921 Contra Costa Wildcat Canyon Comment
  UC1555269  Heuchera micrantha R. C. Stebbins 1988-5-25 Contra Costa Memory and Packrat trails Tilden Park; , Tilden Nature Area Comment
  CAS-BOT-BC424186  Heuchera micrantha var. hartwegii L. R. Abrams 1921-5-25 8056 Contra Costa 4 1.2 mi from summit Mt Diablo Comment
  UC691425  Hieracium albiflorum Mary L. Bowerman 1930-10-19 488 Contra Costa s road at Garden-of-the-Gods; Mount Diablo Comment
  UC1818934  Hirschfeldia incana Barbara Ertter, Mary Bowerman et al. 1995-5-7 14022 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, along road thru annual grassland with scattered blue oak south of Marsh Cr. Rd summit. 304 Comment
  UC764640  Hoita macrostachya R. F. Hoover 1937-8-31 2702 Contra Costa Avon Comment
  UC16313  Hoita orbicularis McLean March, 1875 Contra Costa Mt. Diablo Comment
  UCD84891  Holcus mollis David L. Hanson 1978-3-7 s.n. Contra Costa Contra Costa County. Comment
  CAS-BOT-BC325840  Holocarpha heermannii A. D. E. Elmer 1903-7-1 4613 Contra Costa Mount Diablo Comment
  UC1069572  Holocarpha heermannii H. S. Yates 1934-9-2 4085 Contra Costa 2 mi s Mt. Diablo; Mt. Diablo Quadrangle Comment
  CAS-BOT-BC320201  Holocarpha heermannii John Thomas Howell 1955-8-24 30901 Contra Costa Near Diablo Country Club Comment
  POM360676  Holocarpha heermannii L. S. Rose 1932-10-2 32667 Contra Costa Walnut Creek. Comment
  UC691541  Holocarpha heermannii Mary L. Bowerman 1930-6-3 232 Contra Costa Comment
  JEPS75032  Holocarpha macradenia David J. Powers 1974-10-6 1001 Contra Costa 100-300 ft e Hwy 80 (100-300 yd s Appian Way); Pinole Comment
Read comments Jul 23 2013
  CAS-BOT-BC320225  Holocarpha macradenia Neil Havlik 1979-10-27 s.n. Contra Costa In Pinole, S.W. of intersection of Appian Way and I-80 Comment
  CAS-BOT-BC320259  Holocarpha obconica L. S. Rose 1941-10-16 41466 Contra Costa 6 miles west of Byron, on the Marsh Creek Road 33 Comment
  UC1357615  Holocarpha obconica R. F. Hoover 1965-9-24 9649 Contra Costa foothills w Byron (between Kellogg and Marsh Creeks) Comment
  UC913074  Holocarpha obconica D. D. Keck and J. Clausen 1933-10-27 2567 Contra Costa 1.6 mi w Byron (1.4 mi from junction with Vasco Road); ; 1.6 mi. W of Byron, 1.4 mi. from jct. w/ Vasco Road, Contra Costa Co. Comment
  CAS-BOT-BC320249  Holocarpha obconica H. M. Hall 1930-8-7 12846 Contra Costa Vasco Road at Junction 4 miles west of Byron Comment
  CAS-BOT-BC320260  Holocarpha obconica John Thomas Howell 1930-9-28 5501 Contra Costa On the Marsh Creek Road, 5.4 miles from Byron Comment
  OBI16051  Holocarpha obconica G. Thomas Robbins 1959-9-6 4160 Contra Costa Along Camino Diablo, W of Vasco rd, 0.6 mi E of jctn with Marsh Crk rd 70 Comment
  RSA22274  Holocarpha obconica subsp. obconica L. S. Rose 1938-10-28 38309 Contra Costa Marsh Creek, 8 miles W of Byron. 61 Comment
  CAS-BOT-BC324619  Holocarpha virgata John Thomas Howell 1929-9-21 4389 Contra Costa 5 miles southeast of Clayton on Marsh Creek Road 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
  UC691185  Hordeum brachyantherum subsp. brachyantherum Mary L. Bowerman 1935-5-16 3002 Contra Costa Russelman Park Road at Gregory Ranch junction (Mount Diablo); Mount Diablo 289 Comment
  POM181466  Hordeum depressum I. L. Wiggins 1930-4-17 4578 Contra Costa 1/4 mi. S. of Byron Comment
  CAS-BOT-BC284991  Hordeum depressum Niall McCarten; V. I. Dains 1986-6-1 0413748 114 Contra Costa E. of Byron Hot Springs Rd., East Contra Costa County Comment
  CDA9385  Hordeum jubatum D. G. Kelch 2000-4-9 0 .141 Contra Costa 2 miles S of Byron in field N of Holey Road. 0 Comment
  UCD85869  Hordeum marinum subsp. gussoneanum P. B. Kennedy 1916-5-11 s.n. Contra Costa Richmond District, Grand View Terrace. Comment
  JEPS100007  Hordeum murinum G. Smick 2003-3-27 GAS 93 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  POM301853  Hordeum murinum subsp. glaucum Mary L. Bowerman 1933-5-8 2003 Contra Costa Fossil Ridge, south face, not far from but out of sight of South Gate 290 Comment
  CAS-BOT-BC284778  Hordeum murinum subsp. glaucum Mary L. Bowerman 1933-5-17 2097 Contra Costa Mount Diablo. Branch of Curry Canyon due south of Olafsons' barn Comment
  JEPS75538  Hordeum murinum subsp. leporinum P. F. York 1974-4-28 146 Contra Costa on Hampton Road ca 1.9 km s Bear Creek Road (n of Briones Reservoir, Hampton Road Natural Reserve); Hampton Road Natural Reserve, n of Briones Reservoir 200 Comment
  UC50688  Hordeum murinum subsp. leporinum Jos. Burtt Davy 1899-4-19 7868 Contra Costa Moraga Valley Comment
  SEINET11263166  Horkelia californica subsp. dissita Barbara Ertter, Chris Thayer 1996-10-25 15385 Contra Costa West side of Mount Diablo, North Gate Road 1.0 roadmiles NW of Junction, spring near road.; 0 579 Comment
  CAS-BOT-BC532052  Horkelia californica var. frondosa Joseph Andorfer Ewan 1934-5-20 8926 Contra Costa Russelmann Park, n. side Mt. Diablo Comment
  UCD106066  Hosackia crassifolia P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UC454506  Hydrocotyle verticillata I. J. Condit 1908-8-19 Contra Costa Antioch Comment
  CAS-BOT-BC312936  Hypochaeris glabra Mary L. Bowerman 1930-6-18 337 Contra Costa Mount Diablo. Dan Cook (Rock City) Canyon 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
  CDA7491  Hypochaeris radicata Goodwin, M. K. Bellue 1932-5-6 Contra Costa 0 Comment
  UCD133458  Hypochaeris radicata Goodwin-Bellue 1932-5-6 s.n. Contra Costa exact location unknown. Comment
  UC1304178  Iris douglasiana Leo Brewer 1965-5-4 Contra Costa ridge w Siesta Valley (w-facing side of ridge, exposed to fog from Golden Gate, on county line between Contra Costa and Alameda counties) 441 Comment
  UC4290  Iris longipetala J. Burtt Davy Apr 1897 Contra Costa Point Isabel Comment
  UC692078  Isoetes howellii Mary L. Bowerman 1935-7-22 3187 Contra Costa s. side Meridian Peak (Hidden Pond); Mt. Diablo, Hidden Pond 518 Comment
  UC692079  Isoetes howellii Mary L. Bowerman 1935-7-22 3187 a Contra Costa s. side Meridian Peak (w. end Hidden Pond); Mt. Diablo, Hidden Pond 518 Comment
  CAS-BOT-BC101879  Juglans californica J. W. Congdon 1894-10-16 s.n. Contra Costa Ft. Mt. Diablo Comment
  CHSC93646  Juglans californica var. hindsii Paul Kirk; Joe Callizo 2001-10-8 7 Contra Costa City of Lafayette Community Park, along Grizzly Cr. drainage on W side of Las Trampas Cr., 30 m downstream from culvert under Silverado Dr. 128 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
  CAS-BOT-BC102304  Juglans hindsii Lewis S. Rose 1936-4-24 36140 Contra Costa Marsh Creek, 5 mi. E. of Clayton 60 Comment
  CDA9514  Juncus acuminatus D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .241 Contra Costa CA Delta; Along Clifton Court Near Clifton Court Forebay. Comment
  UC691987  Juncus ambiguus Mary L. Bowerman 1933-4-22 1885 Contra Costa nw end of Shell Ridge (s of highway (Heather Farm), Mount Diablo); Mount Diablo, Shell Ridge Comment
  CDA15236  Juncus balticus G. F. Hrusa, D. Crowe 1998-5-8 14367 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg. Comment
  CHSC97914  Juncus balticus D. G. Kelch 2006-6-14 06 .334 Contra Costa Between Rte 4 and Carbon Rd. E Rodeo. 24 Comment
  UC1818994  Juncus balticus Barbara Ertter, Mary Bowerman et al. 1995-5-7 14030 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, wet ground around small pond west of road in grassy flat. Comment
  UC1819013  Juncus bufonius var. bufonius Barbara Ertter, Mary Bowerman et al. 1995-5-7 14040 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, damp road bed, clayey, in grassy flat south of pond, near edge of blue oak forest. Comment
  RSA0027417  Juncus effusus var. pacificus Barbara Ertter, Joanne Kerbavaz, Mary Bowerman 2000-8-20 17514 Contra Costa South side of Mount Diablo, Green Ranch Road at Meridian Springs Creek crossing. 747 Comment
  POM300634  Juncus patens Mary L. Bowerman 1938-6-30 3703 Contra Costa Plants of Mount Diablo: Lower Canyon Spring, which is moister than the upper spring. 976 Comment
  JEPS102917  Juncus phaeocephalus var. paniculatus Barbara Ertter 1998-5-3 16061 Contra Costa wet meadow below Stage Road SE of Turtle Rock Ponds; Mount Diablo 304 Comment
  JEPS67063  Juncus phaeocephalus var. paniculatus W. L. Jepson 1918-6-15 7675 Contra Costa Wild Cat Creek Comment
Read comments Jul 28 2008
  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
  JEPS112433  Juncus xiphioides D. G. Kelch 2004-7-9 04 .307 Contra Costa Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite 60 Comment
  POM300638  Juncus xiphioides Mary L. Bowerman 1931-5-15 865 Contra Costa Lower Silver Spring. Comment
  CAS-BOT-BC80924  Juniperus californica John Thomas Howell 1923-11-13 239 Contra Costa Mt. Diablo 914 Comment
  CAS-BOT-BC80925  Juniperus californica Alice Eastwood 1922-3-17 11079 Contra Costa Mt. Diablo Comment
  UC727702  Juniperus californica Milo S. Baker 1946-1-1 11255 Contra Costa ca halfway to summit Mt. Diablo (near roadside at parking place) Comment
  SEINET10531634  Juniperus californica Lewis S. Rose 1941-3-22 Rose 41052 Contra Costa Mt. Diablo, west slope. 915 Comment
  SEINET10531635  Juniperus californica Joseph A. Ewan 1933-10-15 Ewan 8038 Contra Costa Scattered but not uncommon on rock outcrops of SW slope, Mt. Diablo. 1065 Comment
  UCD19084  Kochia scoparia subsp. scoparia Clyde Elmore 1983-7-20 s.n. Contra Costa Contra Costa County. Comment
  JEPS41062  Koeleria macrantha Rimo Bacigalupi and L. R. Heckard 1965-5-11 9083 Contra Costa San Francisco Bay Brooks Island (sw of Richmond); , Brooks Island 30 Comment
  JEPS71238  Koeleria macrantha Mary L. Bowerman 1931-5-2 796 Contra Costa upper end of canyon, 2 n ridges, Eagle Pt. Ridge Mt. Diablo; , 2 n ridges, Eagle Pt. Ridge Comment
  UCD85733  Koeleria macrantha Beecher Crampton 1956-5-14 3394 Contra Costa 3.7 miles southeast of Clayton, on Marsh Creek Road. Comment
  JEPS99525  Lactuca saligna Mary L. Bowerman 1975-9-14 Contra Costa Mount Diablo. By hillside near Chase Pond. Comment
  JEPS100181  Lactuca serriola A. Langston 2003-8-26 AL 85 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC691777  Lactuca serriola Mary L. Bowerman 1930-10-4 483 Contra Costa Maple Spring Mount Diablo Comment
  CAS-BOT-BC340537  Lactuca serriola Walter Knight; Irja Knight; J. T. Howell; E. McClintock 1978-9-5 3236 Contra Costa Browns Island Comment
  CAS-BOT-BC340541  Lactuca serriola John Thomas Howell; Gordon H. True 1972-7-29 s.n. Contra Costa On Byron Hot Springs Road southeast of Byron Comment
  CAS-BOT-BC340543  Lactuca serriola R. E. Frenkel 1963-8-18 264 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  CAS-BOT-BC341473  Lagophylla ramosissima James I. McMurphy 1909-5-21 s.n. Contra Costa Antioch Comment
  UC2028539  Lamium amplexicaule Barbara Ertter 1998-3-1 15920 Contra Costa Shell Ridge Open Space on northwest base of Mount Diablo, Sulfur Creek upstream from Good's Spring. Comment
  UC1051228  Lantana camara N. Floy Bracelin 1942-9-20 2302 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CDA22719  Lastarriaea coriacea Sue Bainbridge 2007-4-26 Byron-Airport- 5 Contra Costa Byron Airport. Comment
  UC30410  Lasthenia californica W. H. Brewer 1862-5-19 1120 Contra Costa N of Kirker's Pass 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
  JEPS124445  Lasthenia californica subsp. californica Daniel Slakey with Randy Morgan 2015-4-3 90 Contra Costa Southwest corner at the intersection/curve of Raymond Rd. and Ames St. Comment
  UC691501  Lasthenia californica subsp. californica Mary L. Bowerman 1931-3-29 628 Contra Costa n of Cave Point ridge (near Riggs Canyon); Mount Diablo Comment
  UC1142637  Lasthenia conjugens Edw. L. Greene 1887-4-17 Contra Costa Antioch 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
  CAS-BOT-BC353326  Lasthenia fremontii Niall McCarten; V. I. Dains 1986-1-1 23 Contra Costa Grassland, W of Camino Diablo & Keloogg Creek. Comment
  CAS-BOT-BC353331  Lasthenia fremontii Lewis S. Rose 1956-4-16 56016 Contra Costa Dry rain pool, 2 mi. SE of Byron. 7 Comment
  RSA523884  Lasthenia fremontii Barbara Ertter, Jim Jokerst, D. Magney 1989-4-5 8136 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  CAS-BOT-BC352924  Lasthenia glaberrima Mary L. Bowerman 1935-6-21 3153 Contra Costa Mount Diablo. South of Turtle Rock, pool east of main pond Comment
  CAS-BOT-BC352927  Lasthenia glaberrima A. D. E. Elmer 1903-5-1 4321 Contra Costa Walnut Creek Comment
  JEPS116852  Lasthenia glaberrima David Gowen 2007-4-16 678 Contra Costa Briones Regional Park in vernal depression northeast of Sindicich Lagoon. Comment
  UC2070575  Lasthenia glaberrima Barbara Ertter with Kevin Hintsa et al. 2003-4-20 18158 Contra Costa Lower Turtle Rock Ponds in Pine Canyon, west side of Mount Diablo, NE side of Barbeque Terrace Road. Comment
  JEPS35405  Lasthenia glabrata subsp. glabrata W. L. Jepson 1925-4-26 10686 Contra Costa Black Hills Mt. Diablo, Black Hills Comment
  RSA31360  Lasthenia glabrata subsp. glabrata Joseph A. Ewan 1935-5-26 9300 Contra Costa E slope Bald Peak, San Pablo Ridge. 549 Comment
  RSA666474  Lasthenia glabrata subsp. glabrata Barbara Ertter, Chris Thayer 1993-5-7 11705 Contra Costa Ca 0.5 mile N of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land E of Tilden Park. 457 Comment
  UC697159  Lasthenia glabrata subsp. glabrata Mary L. Bowerman 1933-4-15 1865 Contra Costa Comment
  JEPS73690  Lasthenia gracilis L. R. Heckard 1968-3-5 1759 Contra Costa Byron 7 Comment
  UC135156  Lasthenia gracilis C. F. Baker 1903-4-25 2801 Contra Costa Antioch Comment
  UC1363810  Lasthenia gracilis Robert Ornduff 1958-3-22 4809 Contra Costa 1.5 mi sw Buchanan Road junction (along side of Kirker Pass) Comment
  UC1563907  Lasthenia gracilis Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8119 Contra Costa alkali sink w and adjacent to Clifton Court Forebay (ca. 15 air mi sw of Stockton) 0 Comment
  UC62988  Lasthenia gracilis H. M. Hall 1901-4-5 1744 Contra Costa lower slopes Mt. Diablo Comment
  SD5689  Lasthenia microglossa K. Curran May 1884 Contra Costa Antioch. Comment
Read comments Mar 10 2008
  UC697156  Lasthenia microglossa Mary L. Bowerman 1936-4-23 3405 Contra Costa Mitchell-Pine Divide, northern most point Mount Diablo 838 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
  UC1301068  Lasthenia minor Helen K. Sharsmith 1963-4-7 5297 Contra Costa near Byron 7 Comment
  UC191034  Lasthenia minor Katharine Brandegee 1904-5-5 Contra Costa near Antioch; Judsonville Comment
  JEPS9811  Lasthenia minor Anna E. Ehlers 1920-4-18 557 Contra Costa near Mt. Diablo; Pine Canyon Comment
  UC1314947  Lasthenia platycarpha R. F. Hoover 1967-4-28 10505 Contra Costa Byron Hot Springs Comment
  CAS-BOT-BC213349  Lathyrus jepsonii subsp. californicus Volney Rattan 1887-5-22 s.n. Contra Costa Alhambra Valley Comment
  CAS-BOT-BC205011  Lathyrus jepsonii var. jepsonii E. E. Stanford 1930-5-24 1515 Contra Costa Marsh Creek Canyon Comment
  CAS-BOT-BC205013  Lathyrus jepsonii var. jepsonii Walter Knight; Brian Atwater; Joanne Dean; Rolf Bensler; Bryan Mortensen 1979-4-13 3362 Contra Costa Crooked Slough, Browns Island Comment
  CAS-BOT-BC205016  Lathyrus jepsonii var. jepsonii Walter Knight 1978-8-14 3124 Contra Costa Browns Island 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
  JEPS99995  Lathyrus latifolius G. Smick 2003-5-30 GAS 199 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC15364  Lathyrus vestitus Ivar Tidestrom 1893-4-15 Contra Costa Sheep Island Comment
  UC15363  Lathyrus vestitus var. vestitus W. H. Brewer 1862-4-30 Contra Costa Monte Diablo Comment
  UC692237  Lathyrus vestitus var. vestitus Mary L. Bowerman 1931-4-19 742 Contra Costa above lower Deer Flat Mount Diablo, Deer Flat Comment
  UC692312  Lathyrus vestitus var. vestitus Mary L. Bowerman 1933-6-3 2239 Contra Costa Ransom Point ridge Mount Diablo Comment
  UC85314  Lathyrus vestitus var. vestitus C. F. Baker 1903-4-28 2944 Contra Costa Mitchell Canyon Mt. Diablo Comment
  CDA15231  Lavatera cretica G. F. Hrusa, D. Crowe 1998-5-8 14360 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg. Comment
  CDA15250  Lavatera cretica G. F. Hrusa, D. Crowe 1998-5-8 14381 Contra Costa Sacramento Delta; Adjacent to Dow Ecological Reserve on Dow Chemical property at Pittsburg. 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
  UC30593  Layia chrysanthemoides Harley P. Chandler 1901-3-22 879 Contra Costa Rodeo Canyon San Francisco Bay Region, Rodeo Canyon Comment
  UC650363  Layia chrysanthemoides Ira L. Wiggins 1930-4-17 4572 Contra Costa s Byron Comment
  UC89156  Layia chrysanthemoides C. F. Baker 1903-4-27 2903 Contra Costa Byron Comment
  POM53189  Layia chrysanthemoides C. F. Baker 1903-4-27 2903 Contra Costa Byron. Comment
  CAS-BOT-BC321746  Layia gaillardioides Mary L. Bowerman 1935-4-17 2847 Contra Costa Mt. Diablo. North Road, 2 mi from North Gate, ridge west of chaparral. 335 Comment
  CAS-BOT-BC321076  Layia glandulosa Joseph Andorfer Ewan 1935-3-10 9146 Contra Costa Along Sacramento River at Antioch Comment
  UC468839  Layia glandulosa W. C. Blasdale 1893-5-13 Contra Costa Comment
  UC614822  Layia glandulosa Beryl O. Schreiber 1932-3-27 161 Contra Costa Comment
  CAS-BOT-BC327250  Layia hieracioides Mary L. Bowerman 1933-5-3 1969 Contra Costa Mt. Diablo, Due south of summit 2400'; commoner toward saddle (2400'). 731 Comment
  POM267968  Layia hieracioides D. D. Keck 1941-6-5 5307 Contra Costa Berkeley Hills, Fish Creek Road 1/4 mile W of E portal of Broadway Tunnel. 335 Comment
  CAS-BOT-BC370664  Layia platyglossa Alice Eastwood 1921-4-18 10279 Contra Costa Antioch Comment
  UC30670  Layia platyglossa Edw. L. Greene 1892-6-20 Contra Costa Mount Diablo Comment
  POM53355  Layia platyglossa subsp. platyglossa C. F. Baker 1903-5-28 2874 Contra Costa Antioch. Comment
  POM181451  Lemna minuta I. L. Wiggins 1930-4-18 4607 Contra Costa Jersey Island. Comment
  CAS-BOT-BC534639  Lemna minuta Ira L. Wiggins 1930-4-18 4607 Contra Costa Jersey Island Comment
  CDA31190  Lepechinia calycina D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  JEPS78825  Lepechinia calycina Edward Lee 1936-5-24 2166 Contra Costa 10 miles from Marsh Creek Road, Morgan Territory Comment
  UC691410  Lepechinia calycina Mary L. Bowerman 1938-5-28 3638 Contra Costa Mount Diablo North Road 5.4 miles from North Gate 457 Comment
  OBI15025  Lepidium acutidens Robert F. Hoover 1967-4-28 10507 Contra Costa Byron Hot Springs Comment
  UCD169966  Lepidium chalepense R. M. Case 2001-5-10 PDR-P 088777 Contra Costa On Solano Ave., Concord. Comment
  CHSC67911  Lepidium dictyotum var. acutidens James D. Jokerst 1989-3-29 3069 Contra Costa 0.25 mi S of Byron Hot Springs NE of Livermore. Comment
  JEPS21345  Lepidium dictyotum var. acutidens J. Burtt Davy May 1898 Contra Costa Danville Mount Diablo Region Comment
  RSA66572  Lepidium dictyotum var. acutidens J. T. Howell 1933-3-29 10894 Contra Costa Nortonville Comment
  RSA8388  Lepidium dictyotum var. acutidens L. S. Rose 1933-3-29 33041 Contra Costa Nortonville. Comment
  UC480595  Lepidium nitidum Carl Meyer 1928-2-22 292 Contra Costa Mt. Diablo Comment
  UC796583  Lepidium nitidum Reed C. Rollins 1946-3-25 3042 Contra Costa Mount Diablo, western slope Mount Diablo Comment
  RSA523888  Lepidium nitidum Barbara Ertter, Jim Jokerst, D. Magney 1989-4-5 8123 Contra Costa W and adjacent to Clifton Court Forebay, ca 15 airmiles SW of Stockton. 0 Comment
  CDA23067  Lepidium strictum D. G. Kelch, D. A. Weinstein 2008-5-5 8 .092 Contra Costa Carquinez Strait; Richmond. W Chevy s Hill. N parking lot of Hilltop Mall. Comment
  UC10597  Lepidium strictum Harley P. Chandler 1901-4-5 942 Contra Costa Pine Canyon Mt. Diablo Comment
  UC2027726  Leptosiphon bicolor Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15506 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  UCD32383  Leptosiphon ciliatus Beecher Crampton 1950-4-22 527 Contra Costa Contra Costa County, above Judsonville, south of the old Empire Mine around top and slopes of hills. 182 Comment
  UC87925  Lessingia glandulifera K. Brandegee 1883-1 Contra Costa Antioch Comment
  UCD134065  Lessingia glandulifera var. glandulifera Peter Rubtzoff 1954-9-14 1751 Contra Costa Lower San Joaquin River, E of Antioch. Comment
  UC1051216  Leucospermum nutans N. Floy Bracelin 1945-5-6 2968 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS43213  Lewisia rediviva W. L. Jepson 1907-4-26 2640 Contra Costa Mt. Diablo Comment
  SEINET257984 Image available Leymus X multiflorus M. Barkworth, D Amme 1989-6-15 5169 Contra Costa Bluffs back of beach just north of Castro Point Comment
  UC691184  Leymus X multiflorus Mary L. Bowerman 1938-11-19 3734 Contra Costa Mitchell Creek tributary s Black Point; Mount Diablo 259 Comment
  UC790970  Leymus X multiflorus A. A. Beetle 1941-6-24 1751 Contra Costa Pt. Richmond San Francisco Bay Comment
  CAS-BOT-BC283734  Leymus condensatus W. A. Silveus 1938-7-5 3215 Contra Costa El Cerrito Comment
  CAS-BOT-BC272212  Leymus triticoides Mary L. Bowerman 1933-9-23 2447 Contra Costa Indian Ceremonial Canyon near spring, Mount Diablo Comment
  UC2029177  Lilaea scilloides Barbara Ertter with Alan Prather 2003-6-7 18191 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo. Comment
  UC692006  Lilium pardalinum Mary L. Bowerman 1935-6-21 3144 Contra Costa e fork Arroyo del Cerro; Mount Diablo 289 Comment
  UC692008  Lilium pardalinum Mary L. Bowerman 1935-3-16 2741 Contra Costa e fork Arroyo del Cerro (on canyon floor immediately above spring); Mount Diablo 289 Comment
  UC17906  Limnanthes douglasii subsp. douglasii H. M. Hall 1901-3-21 1690 Contra Costa Lafayette Region of the San Francisco Bay Comment
  UC1057450  Limnanthes douglasii subsp. nivea G. Thomas Robbins 1937-4-25 150 Contra Costa near Walnut Creek Comment
  JEPS21834  Limnanthes douglasii subsp. rosea Bryce G. Decker 1958-4-13 39 Contra Costa junction of Holey Road and Byron Highway 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
  CDA33337  Limnobium laevigatum Robin Breckenridge 2010-10-1 PDR# 5059100 Contra Costa North edge of Bradford Island. 0 Comment
  SBBG117351  Limonium californicum B. Crampton 1950-8-5 632 Contra Costa San Pablo Canal, NW of Richmond Comment
  UC1602386  Linanthus ambiguus Mary L. Bowerman 1934-3-18 2481 Contra Costa w of Russelman Park (on the edge of Donner Canyon); Mount Diablo, Donner Canyon 381 Comment
  UC23369  Linanthus androsaceus Jos. Burtt Davy 1901-4-21 6930 Contra Costa Wildcat Canyon Comment
  UC908952  Linanthus androsaceus Herbert L. Mason 1928-4-29 4441 Contra Costa Sycamore Canyon Mount Diablo (s slope of Mt. Diablo) Comment
  UC23464  Linanthus ciliatus Brewer 1862-5-22 1138 Contra Costa Comment
  JEPS123317  Linanthus parviflorus David Gowen with Chris Thayer 2010-4-30 1090 Contra Costa North of Briones Reservoir. Rocky area on hill above Oursan Trail just west of its junction with Hampton Trail. Comment
  UC1051315  Linaria purpurea N. Floy Bracelin 1941-6-22 1412 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  JEPS112264  Lithophragma affine D. G. Kelch 2004-3-12 04 .024 Contra Costa Pinole Valley; hillside and canyon above Wright Road. Off of Pinole Valley Road. Comment
  JEPS112265  Lithophragma affine D. G. Kelch 2005-3-11 05 .033 Contra Costa Franklin Canyon - McHarry Ranch Road.; McHarry Ranch Road off of Franklin Canyon Road Comment
  SJSU5759  Lithophragma affine M. C. Maloney 1971-4-20 Contra Costa Morgan Territory Rd, 6 mi from Marsh Cr Rd Comment
  SEINET5557311  Lithophragma affine H. S. Gentry 1931-1 47 Contra Costa Collected near Buckle Point Mt. Diablo. Comment
  POM274347  Lithophragma affine subsp. affine Lyman Benson 1931-3-18 2663 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 Comment
  JEPS105700  Lithophragma bolanderi David Gowen 2004-3-28 21 Contra Costa Black Diamond Mines Regional Preserve. River View Loop trail southeast of the Arata Overlook trail junction. Comment
  CDA25420  Lithophragma heterophyllum G. D. Barbe 1962-4-19 665 Contra Costa Trail above earth dam, west side of Morgan Territory Road, 8 1/2 miles south of Clayton, east side of Mt. Diablo. Comment
  JEPS100141  Logfia gallica G. Smick 2003-4-29 GAS 152 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS111698  Logfia gallica D. G. Kelch 2004-4-25 04 .121 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Hill Southwest of large cottonwood. West of Martinez at gated end of Scenic Dr 50 Comment
  UC1819041  Logfia gallica Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14237 Contra Costa South side Mount Diablo, road to Sheepherders Springs 1/2 mile north of Curry Point from Sloan Road, clay at edge of grassland/woodland. 426 Comment
  UC1948972  Lolium multiflorum William J. Ferlatte, L. Maynard Moe 1970-4-27 1221 Contra Costa San Francisco Bay: Red Rock Island Comment
  SEINET2074966  Lolium multiflorum S. J. Gibbs 1970-3-27 Contra Costa Oak View Terrace, 3 mi. N.E. of P.O. 121 Comment
  CDA9485  Lolium perenne D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .21 Contra Costa Byron Airport. Comment
  UC1948973  Lolium perenne William J. Ferlatte, L. Maynard Moe 1970-4-27 1248 Contra Costa San Francisco Bay: Red Rock Island Comment
  UCD66671  Lolium temulentum K. Brandegee 1916-5-9 Contra Costa Byron Springs. Comment
  CHSC69467  Lomatium caruifolium var. caruifolium James D. Jokerst 1989-5-28 3056 Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. Comment
  UCD150873  Lomatium caruifolium var. caruifolium P. B. Kennedy 1914-3-15 4625 Contra Costa Sunset Cemetery. Comment
  JEPS73314  Lomatium dasycarpum subsp. dasycarpum Edward Lee with Joe Ewan and Annetta Carter 1934-4-30 741 Contra Costa near the boat harbor Richmond Comment
  POM132622  Lomatium dasycarpum subsp. dasycarpum H. P. Chandler 1901-4-5 982 Contra Costa Mt. Diablo. Comment
  UC1084396  Lomatium dasycarpum subsp. dasycarpum G. Thomas Robbins 1937-4-17 137 Contra Costa near Point Richmond Comment
  UC692363  Lomatium nudicaule Mary L. Bowerman 1935-6-15 3127 Contra Costa Mt. Diablo, Mitchell-Pine divide, also large grassy ridge running n. Mt. Diablo, Mitchell-Pine divide 609 Comment
  UCD102387  Lomatium nudicaule Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. North Peak Road to North Peak. 920 Comment
  UC691424  Lomatium utriculatum Mary L. Bowerman 1932-2-28 1091 Contra Costa ridge E of Rhine Canyon 487 Comment
  JEPS12841  Lonicera hispidula var. vacillans W. L. Jepson May 23 1891-May 24 1891 Contra Costa Mt. Diablo Comment
  RSA455187  Lonicera hispidula var. vacillans Thekla Mohr 1917-07 s.n. Contra Costa Mount Diablo Comment
  UC691480  Lonicera hispidula var. vacillans Mary L. Bowerman 1930-6-18 346 Contra Costa Dan Cook Canyon Mount Diablo Comment
  UC691482  Lonicera hispidula var. vacillans Mary L. Bowerman 1935-6-21 3145 Contra Costa e fork Arroyo del Cerro (several hundred yards below the spring) 289 Comment
  CAS-BOT-BC240661  Lonicera interrupta H. E. McMinn 1922-10-1 91 b Contra Costa Mitchelle Canon [Canyon], Mt. Diablo Comment
  UC1050675  Lonicera pileata f. yunnanensis N. Floy Bracelin 1941-4-20 1183 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  SEINET10832893  Lotus Frenkel 1964-3-18 FRENKEL 400 A Contra Costa On giant road, .4 mi n of atsf rr crossing, richmond. 15 Comment
  UC1795754  Lotus corniculatus Barbara Ertter, Kristin Ertter 1995-7-11 14473 Contra Costa Sulfur Spring on Pine Cr, Diablo Foothills Regional Park SW of Walnut Creek, marshy wet ground. 121 Comment
  POM161235  Lotus crassifolius Rimo Bacigalupi 1926-4-30 1350 Contra Costa Summit of Mt Diablo. Comment
Read comments Nov 9 2011
  UC775175  Lotus denticulatus Herbert L. Mason 1945-5-31 Contra Costa nw of St. Mary's College; Cashion Canyon Comment
  UC15622  Lotus humistratus W. H. Brewer 1862-5-26 1166 Contra Costa sw of Monte Diablo Comment
  UC555542  Lotus junceus var. biolettii H. L. Mason 1929-5-7 5262 Contra Costa Moraga Ridge Comment
  UC15645  Lotus micranthus W. H. Brewer 1862-5-26 1173 Contra Costa Mt. Diablo Comment
  UC555416  Lotus micranthus H. L. Mason 1928-4-29 4428 Contra Costa Sycamore Canyon, s slope of Mount Diablo Mount Diablo Comment
  UC33586  Lotus micranthus W. L. Jepson 1891-6-9 Contra Costa at the Fish Ranch Comment
  UC692265  Lotus purshianus var. purshianus Mary L. Bowerman 1930-6-18 335 Contra Costa Rock City Canyon (= Dan Cook Canyon), at upper end Mount Diablo Comment
  JEPS25107  Lotus scoparius G. Thomas Robbins 1959-4-12 3983 Contra Costa about 0.5 mi sw junction of Hoffmann Blvd. and S. 25th St. 6 Comment
  JEPS100073  Lotus scoparius var. scoparius G. Smick 2003-5-30 GAS 201 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1300865  Lotus strigosus Helen K. Sharsmith 1963-4-7 5291 Contra Costa s of Antioch (near Oakley); San Francisco Bay Region 15 Comment
  UC555418  Lotus strigosus H. L. Mason 1932-3-20 6839 Contra Costa Antioch Comment
  UC692324  Lotus strigosus Mary L. Bowerman 1932-4-9 1329 Contra Costa Inner Black Hills, small ridge e of s spur on meridian Mount Diablo, Inner Black Hills Comment
  CDA27342  Lotus wrangelianus D. G. Kelch, A. G. Murdock 2003-4-3 3 .356 Contra Costa Carquinez Strait Region; Cummings Skyway. South of Cummings Skyway and Crockett Boulevard. Comment
  CDA29490  Lotus wrangelianus D. G. Kelch, Troy MacGregor 2009-5-1 9 .272 Contra Costa Carquinez Strait; Franklin Ridge. Fernandez Ranch Extension. 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
  UC692325  Lotus wrangelianus Mary L. Bowerman 1933-5-25 2189 Contra Costa w end of s face Osyter Ridge; Mount Diablo 396 Comment
  CAS-BOT-BC478118  Ludwigia Walter Knight 1978-10-11 3325 Contra Costa Browns Island, Point Emmet Comment
  RSA0026153  Ludwigia peploides subsp. montevidensis Barbara Ertter, Lincoln Constance 1995-6-16 14263 Contra Costa East edge Dow Marsh on west side Antioch Marina, south side San Joaquin River in Delta area. Comment
  UCR197888  Lupinus Beecher Crampton 1949-5-29 466 Contra Costa 1 mile north of Richmond, patch along Southern Pacific Railroad 15 Comment
  UC15822  Lupinus albifrons W. H. Brewer 1862-5-1 1038 Contra Costa s Camp 69; s of Camp 69 Comment
  SEINET11071663 Image available Lupinus albifrons Lewis S. Rose 1935-5-16 35162 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC201365  Lupinus albifrons var. albifrons James McMurphy 1909-5-20 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC201368  Lupinus albifrons var. albifrons Alice Eastwood 1921-4-18 10282 Contra Costa Antioch Comment
  CAS-BOT-BC201379  Lupinus albifrons var. albifrons John H. Thomas 1953-4-25 3007 Contra Costa Antioch Sand Hills along San Joaquin River, 0.2 miles west of Antioch Bridge Comment
  UC1607626  Lupinus albifrons var. collinus Barbara Ertter 1991-5-5 9772 Contra Costa halfway up E ridge Rose Hill (above cemetary, Black Diamond Mines Regional Preserve s of Pittsburg); Black Diamond Mines Regional Preserve, Rose Hill 365 Comment
  CAS-BOT-BC196217  Lupinus albifrons var. eminens C. F. Baker Apr. 25 2823 Contra Costa Antioch Comment
  JEPS112345  Lupinus bicolor Dean G. Kelch and Andrew G. Murdock 2004-4-25 04 .111 Contra Costa Martinez - West: Ozol Rock and Scenic Drive; County: contra Costa; West Martinez on Carquinez Dr. Comment
  JEPS75466  Lupinus bicolor P. F. Yorks 1975-4-27 386 Contra Costa on Hampton Road ca 1.6 km s Bear Creek Road (n of Briones Reservoir, in Hampton Road Natural Reserve); Hampton Road Natural Reserve, n of Briones Reservoir Comment
  UC1197281  Lupinus bicolor J. P. Tracy 1900-3-24 624 Contra Costa Dry Hill Point Richmond (Point Richmond); Region about San Francisco Bay, Point Richmond 15 Comment
  UCD107174  Lupinus bicolor Morris Halperin 1929-4-21 s.n. Contra Costa St. Mary's College Campus. Comment
  UCSB39467  Lupinus bicolor Fritzke, Sue 1980-3-29 Contra Costa 0.5 miles from the E end of Ball Rd.; in the Shell Ridge Open Space Area; SE of the rock quarry 124 Comment
  SEINET10970226  Lupinus bicolor subsp. tridentatus Charles Piper Smith 1922-4-15 Smith 3492 Contra Costa Antioch - Southern Pacific Railroad Depot - 0.5 mi W. Comment
  JEPS12790  Lupinus chamissonis Rimo Bacigalupi with G. T. Robbins 1955-5-4 4980 Contra Costa just e Antioch (along San Joaquin River front); , e of Antioch 9 Comment
Read comments May 25 2007
  SEINET10937078  Lupinus densiflorus Frenkel 1964-4-18 FRENKEL 425 Contra Costa 2.1 mi. I of danville on tassajara rd. 130 Comment
  UCD107761  Lupinus formosus P. B. Kennedy 1916-5-11 12 Contra Costa Grand View Terrace; Richmond District. Comment
  UC2029122  Lupinus formosus var. robustus Barbara Ertter with David Gowen 2013-4-19 21318 Contra Costa Southwestern Mount Diablo State Park southeast of Walnut Creek, upper end of Little Yosemite Trail at junction with Briones to Mount Diablo Regional Trail. Comment
  CDA28918  Lupinus microcarpus D. G. Kelch, Troy MacGregor 2009-5-24 9 .298 Contra Costa Carquinez Strait; Carquinez Loop Trail S of Ozol, S-SW of Martinez, nr Wolcott Ln . Comment
  UC201013  Lupinus microcarpus var. densiflorus Katharine Brandegee 1918-6-16 Contra Costa near Virgorit Powder Works; near Vigorit Powder Works Comment
  UC201016  Lupinus microcarpus var. densiflorus Katharine Brandegee 1918-6-16 Contra Costa near Virgorit Powder Works; near Vigorit Powder Works Comment
  SJSU10780  Lupinus microcarpus var. microcarpus D. C. Bettencourt 1959-4-18 Contra Costa Mt Diablo Foothills 304 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
  UC126998  Lupinus nanus J. Burtt Davy 1897-4-17 Contra Costa Point Isabel 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
  UCSB10857  Lupinus nanus Judy Hayes 1961-3-29 48 Contra Costa collected 2.0 mi N, along Cliffhill Road Danville - Danville and Cliffhill Road Comment
  CHSC21642  Lupinus succulentus Willis Ball 1975-3-2 464 Contra Costa Contra Loma Regional Park. In area #4. At edge of beach on e side of lake ca. 50 yds s of dam. 33 Comment
  UC1300901  Lupinus succulentus Helen K. Sharsmith 1962-4-7 4916 Contra Costa Appian Way near El Sobrante (San Francisco Bay Region); San Francisco Bay region, Appian Way nr El Sobrante 121 Comment
  CDA39247  Luzula comosa D. G. Kelch 2003-3-21 3 .051 Contra Costa Carquinez Strait Region; Martinez; West: Ozol Rock and Scenic Drive. Comment
  HSC14134  Luzula comosa Greg Bos 1963-3-9 34 Contra Costa Albany Hill 12 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
  OBI78277  Lythrum californicum D. G. Kelch 1996-10-17 s.n. Contra Costa CA Dept. Food & Ag CDA; Carquinez Strait: Pt. Edith Marsh 1 Comment
  UC692632  Lythrum californicum Mary L. Bowerman 1930-9-27 461 Contra Costa (2 mi by road from North Gate (at trough, take trail to west, follow to fence and go through), Mount Diablo); Mount Diablo Comment
  RSA0014832  Lythrum californicum Mary L. Bowerman 1933-8-26 2416 Contra Costa Mount Diablo: Spring at top of south road. Comment
  RSA0016024  Lythrum tribracteatum Barbara Ertter, Brad Olson 1991-9-28 10834 Contra Costa San Pablo Reservoir between Orinda and El Sobrante. 91 Comment
  CAS-BOT-BC342681  Madia elegans Mary L. Bowerman 1936-9-10 3542 Contra Costa Mount Diablo. Donner Canyon 335 Comment
  UC33221  Madia elegans Jos. Burtt Davy 1895-1 Contra Costa Moraga Pass Comment
  UC691550  Madia elegans Mary L. Bowerman 1933-6-3 2240 Contra Costa Ransom Point ridge Mount Diablo Comment
  UC697170  Madia elegans Mary L. Bowerman 1936-9-10 3542 Contra Costa Donner Canyon Mount Diablo (by streamlet) 335 Comment
  UC697172  Madia elegans Mary L. Bowerman 1933-5-17 2106 Contra Costa Curry Canyon brance s of Olafsons' barn Mount Diablo 289 Comment
  UC691552  Madia elegans Mary L. Bowerman 1933-5-19 2144 Contra Costa Sulphur Springs Canyon, e fork Mount Diablo 457 Comment
  CDA1585  Madia elegans subsp. densifolia D. G. Kelch 1998-10-2 s.n. Contra Costa Carquinez Strait; Martinez. Along N side of Pine St Entrance to W HWY 4. Comment
  UC691548  Madia exigua Mary L. Bowerman 1933-5-8 2017 Contra Costa Fossil Ridge near crest, on n side by side road Mount Diablo Comment
  UC691549  Madia exigua Mary L. Bowerman 1932-4-27 1400 Contra Costa canyon w Riggs Canyon (s face Oyster Ridge); Mount Diablo 350 Comment
  UC1819036  Madia exigua Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14246 Contra Costa South side Mount Diablo, Sloan Road between Curry Point and Curry Canyon, roadside in partial shade of oak forest on north-facing slope. 487 Comment
  JEPS21969  Madia gracilis G. Thomas Robbins with S. Galen Smith 1958-6-2 3848 A Contra Costa just e Hercules city boundary (grassy slope along Franklin Canyon Road (State Hwy 4) s and above Refugio Valley) 18 Comment
  UC691765  Madia gracilis Mary L. Bowerman 1931-4-25 754 Contra Costa two mi by road from west entrance = North Gate; Mount Diablo Comment
  UC697158  Madia gracilis Mary L. Bowerman 1933-6-3 2241 Contra Costa Ransom Point Ridge Mount Diablo Comment
  UCD149006  Madia gracilis D. Kelch 2009-5-23 09. 293 Contra Costa Mt. Tamalpais. Ocean View Trail. 114 Comment
  UC2029134  Madia gracilis Barbara Ertter with Mike Park, David Gowen, and Victoria Seidman 2004-5-26 18369 Contra Costa Curry Canyon between Alder Creek and Rhine Canyon, south side of Mount Diablo. Comment
  SEINET3148105  Madia radiata K. Brandegee 1908-4-9 50 Contra Costa Near Antioch Comment
  JEPS41051  Madia sativa Rimo Bacigalupi, and L. R. Heckard 1965-5-11 9076 Contra Costa sw of Richmond (on the w side of Brooks Island, in San Francisco Bay); San Francisco Bay, Brooks Island 6 Comment
  CAS-BOT-BC343585  Madia sativa R. E. Frenkel 1963-8-18 265 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  CAS-BOT-BC8183  Malacothamnus fasciculatus subsp. fasciculatus Harvey Monroe Hall; F. M. Essig 1916-5-30 10131 Contra Costa Mt. Diablo on the westerly side north of Pine Canyon 290 Comment
  CAS-BOT-BC206328  Malacothamnus fremontii Joanne Taylor 1941-7-18 20 Contra Costa By hills of Nortonville. 243 Comment
  UC961415  Malacothamnus fremontii John Thomas Howell and T. H. Kearney 1950-7-5 26635 Contra Costa Nortonville Comment
  CAS-BOT-BC204090  Malacothamnus hallii Volney Rattan 1886-6-14 s.n. Contra Costa Mouth of Pine Canon [Canyon]. Foot of Mount Diablo Comment
  UC33270  Malacothrix californica J. Burtt Davy 1895-4-7 881 Contra Costa Antioch Comment
  UC133354  Malacothrix floccifera C. F. Baker 1903-4-28 2948 Contra Costa Marsh Creek Mount Diablo Comment
  UC133355  Malacothrix floccifera Alice Eastwood 1897-5-31 Contra Costa Mount Diablo Comment
  JEPS111547  Malva nicaeensis D. G. Kelch 2005-3-24 05 .65 Contra Costa Chevy's Hill Chevy's Hill. Edge of waste lot. 57 Comment
  CDA39046  Malva parviflora D. G. Kelch 2011-6-5 11 .575 Contra Costa Carquinez Strait; South of Crockett, south of Cummings Skyway. Comment
  RSA721201  Malva parviflora Barbara Ertter, Mary L. Bowerman 1995-6-11 14248 Contra Costa Shell Ridge Recreation Area southwest of Walnut Creek, at west base Mt.Diablo; near Indian Valley School entrance. 91 Comment
  UC2062657  Malva pseudolavatera Barbara Ertter 2003-6-22 18233 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, ca 1/2 air mile east of headquarters, drainage east of River View Loop Trail. Comment
  UCD151068  Malvella leprosa James A. Neilson Jr. 1972-10-22 3622 Contra Costa Contra Costa County. Lower Pine Creek. (Elevation estimated using Google Earth by label maker.) 15 Comment
  UC1050529  Marah fabacea N. Floy Bracelin 1943-2-28 1950 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC692642  Marah fabacea Mary L. Bowerman 1931-4-4 634 Contra Costa 2 mi by road North Gate; Mount Diablo 228 Comment
  RSA724228  Marah fabacea R. R. Halse 1988-2-20 3540 Contra Costa Along Marsh Creek Road, in the Dark Canyon area, 4 miles W of its junction with Deer Valley Road. 156 Comment
  CHSC46934  Marah oregana Robert A. Schlising; Anna Eagle 1962-5-29 2282 Contra Costa Roadside. Comment
  CDA9493  Marsilea vestita D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .217 Contra Costa Byron Airport. Comment
  JEPS37068  Matricaria discoidea W. L. Jepson 1922-5-18 9647 Contra Costa Berkeley Comment
  CAS-BOT-BC348046  Matricaria discoidea R. E. Frenkel 1963-12-4 305 Contra Costa In walnut orchard on Marsh Creek Road, west of Sellers Road Comment
  CAS-BOT-BC348259  Matricaria occidentalis R. E. Frenkel 1963-5-15 199 Contra Costa East of Bixler Road between Marsh Creek Road and California Hwy. 4 in Byron Tract Comment
  CAS-BOT-BC348260  Matricaria occidentalis R. E. Frenkel 1963-5-15 200 Contra Costa East of Bixler Road between Marsh Creek Road and Point of Timber Road, about 200 yards north of pink house on west side of Road, and about 10-20 m. east of fence Comment
  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
  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
  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
  RSA720797  Melica californica Mary L. Bowerman 1991-5-21 s.n. Contra Costa Mount Diablo. Jim White trail (Deer Flat Road) South side of Juniper-Moses Rock Trail near Deer Flat junction. Comment
  UCD87144  Melica californica P. B. Kennedy 1916-5-1 s.n. Contra Costa Pinehurst. Comment
  UCD87145  Melica californica P. B. Kennedy 1916-5-1 s.n. Contra Costa Pinehurst. Comment
  CAS-BOT-BC271217  Melica californica Niall McCarten; V. I. Dains 1986-6-1 03251142 Contra Costa W. of Camino Diablo and Kellogg Creek Comment
  UCD38556  Melica imperfecta Beecher Crampton 1956-5-14 3405 Contra Costa Southern boundary of Mt. Diablo State Park. Comment
  UC692470  Melica torreyana Mary L. Bowerman 1935-5-16 3013 Contra Costa e side North Peak, Mount Diablo (behind Gabriel-Hinks'); Mount Diablo 289 Comment
  UCD88832  Melica torreyana Beecher Crampton 1956-5-14 3421 Contra Costa 2 miles west of Martinez. Comment
  CAS-BOT-BC262508  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: Woodland 1066 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
  UC1950128  Melica torreyana Barbara Ertter with John Little 1989-4-2 8111 Contra Costa Hillside Park in El Cerrito, on steep W-facing slope Comment
  CDA15238  Melilotus indicus G. F. Hrusa, D. Crowe 1998-5-8 14369 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg. 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
  CAS-BOT-BC344884  Mentha Peter Rubtzoff 1968-9-19 5968 Contra Costa Russellman Park Road, 0.7 miles south of Marsh Creek Road. Comment
  UC2027800  Mentha aquatica Barbara Ertter 1996-9-19 15292 Contra Costa Antioch Marina, edge of marsh near parking lot. Comment
  UC1607618  Mentha canadensis Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, and Amy Hiss 1991-8-18 10697 Contra Costa n Pittsburg (near confluence of Sacramento and San Joaquin Rivers, opposite Pittsburg Marina, at edge of lagoon in center of w end of island); Browns Island, nr confluence Sacramento and San Joaquin Rive Comment
  JEPS102899  Mentha spicata Barbara Ertter with Mary Bowerman 1996-11-21 15394 Contra Costa downstream from Mitchell Canyon trailhead Mount Diablo 182 Comment
  UC1949288  Mentzelia affinis Barbara Ertter 1991-5-5 9773 Contra Costa Black Diamond Mines Regional Preserve S of Pittsburg, S side of Rose Hill above Nortonville Pass Comment
  JEPS99537  Mentzelia micrantha Mary L. Bowerman 1978-5-26 Contra Costa Mount Diablo, N of lower summit parking lot. Comment
  UC692630  Mentzelia micrantha Mary L. Bowerman 1930-6-10 306 Contra Costa Mount Diablo, Meridian Peak summit Comment
  UC697192  Mentzelia micrantha Mary L. Bowerman 1933-5-2 Contra Costa Below Pioneer Camp (and slightly east); Mount Diablo 762 Comment
  UC1795721  Mentzelia micrantha Barbara Ertter, Mary L. Bowerman 1994-6-19 12848 a Contra Costa Mt. Diablo State Park east of Walnut Creek; lower Summit Parking Lot, roadside. Comment
  CDA32927  Micropus californicus D. G. Kelch 2009-5-24 9 .296 Contra Costa Carquinez Strait; Carquinez Loop Trail S of Ozol, S-SW of Martinez, nr Wolcott Ln . Comment
  UC1795021  Micropus californicus R. K. Brummitt and B. Ertter 1998-5-6 19782 Contra Costa Mt. Diablo, NW side, path to Mitchell's Rock 300 Comment
  RSA184979  Micropus californicus L. S. Rose 1966-4-22 66031 Contra Costa Donner Canyon, north slope of Mount Diablo, south of Clayton 213 Comment
  CAS-BOT-BC348365  Micropus californicus var. californicus Alice Eastwood 1915-5-30 4470 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC348788  Microseris campestris Niall McCarten; V. I. Dains 1986-1-1 03231522 41 Contra Costa Ecos East Contra Costa County. W of Camino Diablo & Kellogg Creek Comment
  CAS-BOT-BC348886  Microseris douglasii subsp. douglasii Mary L. Bowerman 1933-5-8 2012 Contra Costa Mount Diablo. Fossil Ridge near crest, on north side by side road Comment
  CAS-BOT-BC348890  Microseris douglasii subsp. douglasii Alice Eastwood 1914-3-14 3800 Contra Costa Byron Springs Comment
  JEPS17890  Microseris douglasii subsp. douglasii Rimo Bacigalupi with G. T. Robbins 1954-3-26 5526 A Contra Costa field along Deer Valley Road; Deer Valley 76 Comment
  JEPS36210  Microseris douglasii subsp. douglasii W. L. Jepson 1923-4-22 9880 Contra Costa Mount Diablo Comment
  UC1070040  Microseris douglasii subsp. douglasii C. M. Belshaw 1936-5-11 2094 Contra Costa 2 mi ene Danville; Mt. Diablo Quad. 243 Comment
  UC468893  Microseris douglasii subsp. douglasii M. K. Curran May, 1886 Contra Costa Antioch 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
  POM301040  Microseris douglasii subsp. douglasii Mary L. Bowerman 1933-5-8 2012 Contra Costa Fossil Ridge near crest, on north side by side road, Mount Diablo Comment
  UC697216  Microseris douglasii subsp. tenella Mary L. Bowerman 1933-4-15 1847 Contra Costa canyon s Arroyo del Cerro; Mount Diablo Comment
  UC70182  Microseris douglasii subsp. tenella J. Burtt Davy May 1898 Contra Costa Danville Mount Diablo Region Comment
  CAS-BOT-BC349167  Microseris elegans K. L. Chambers 1953-4-25 448 Contra Costa Balfour Road, ca. 4 mi. w. of Brentwood and 1.8 mi. e. of its junction with Antioch-Briones Valley Road (Deer Valley Road). Foothills on east side of Mount Diablo Range Comment
  SBBG6024  Microsteris gracilis J. M. Tucker 1946-3-24 1385 Contra Costa hills between Nortonville and Somersville Comment
  UC691503  Mimulus grandis Mary L. Bowerman 1935-4-22 2880 Contra Costa 2 mi from West road (= North Rd.) entrance; Mount Diablo Comment
  SEINET4095730  Mimulus guttatus M. W. Garcia 1960-1 60049 Contra Costa Back of Tilden Park. 53 Comment
  UCD122684  Mimulus guttatus Carole Lembi 1964-3-1 5 Contra Costa Mt. Diablo Road, 5 miles from top of Mt. Diablo. 304 Comment
  JEPS9268  Mimulus latidens M. K. Curran May 1886 Contra Costa Antioch Comment
  UC125132  Mimulus latidens Katharine Brandegee 1907-5-5 Contra Costa between Antioch and Marsh Creek Comment
  UC1818903  Mimulus rattanii Barbara Ertter, Mary Bowerman 1994-6-19 12845 a Contra Costa Mt. Diablo State Park east of Walnut Creek; lower Summit Parking Lot, opening on North side, ca. 3700'. Comment
  SJSU2617  Minuartia douglasii W. E. Ferguson 1942-4-25 Contra Costa E base of Mt Diablo 304 Comment
  UC692297  Minuartia douglasii Mary L. Bowerman 1935-4-17 2825 Contra Costa West Road (= North Rd.) 2 mi from entrance; Mount Diablo 237 Comment
  UC2027714  Minuartia douglasii Barbara Ertter with Stu Garrett 1997-3-29 15525 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. 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
  UC691412  Monardella douglasii Mary L. Bowerman 1930-6-22 369 Contra Costa Mitchell Canyon Trail, above main canyon Mount Diablo Comment
  CAS-BOT-BC220509  Monardella villosa Katharine Brandegee 1907-7-4 s.n. Contra Costa Martinez Comment
  UC204205  Monardella villosa subsp. villosa A. D. E. Elmer Jul 1903 4658 Contra Costa Port Costa Comment
Read comments Apr 5 2007
  UC2027734  Monardella villosa subsp. villosa Barbara Ertter 1997-2-16 15459 Contra Costa Shell Ridge Open Space on west flank of Mount Diablo, exposed sandstone on main ridgeline. Comment
  CAS-BOT-BC327803  Monolopia gracilens Mary L. Bowerman 1933-5-9 2057 Contra Costa Mt. Diablo, Muir Area, SW slope E of the rocks. Comment
  CAS-BOT-BC327806  Monolopia gracilens Alice Eastwood 1915-5-30 4518 Contra Costa Mt. Diablo Comment
  UC691682  Monolopia gracilens Mary L. Bowerman 1931-4-25 767 Contra Costa roadside a little below summit Meridian Peak; Mount Diablo Comment
  CAS-BOT-BC349609  Monolopia major Ethel Crum 1939-3-19 2083 Contra Costa Two miles west of Byron 45 Comment
  UC407362  Monolopia major Ira L. Wiggins 1930-4-17 4584 Contra Costa 0.25 mi s Byron Comment
  UC629756  Monolopia major Ethel Crum 1936-4-6 1741 Contra Costa 2 mi w Byron 45 Comment
  UC75188  Monolopia major unknown 1908-4-27 2796 Contra Costa Byron Comment
  CAS-BOT-BC83296  Myosurus minimus Peter H. Raven; D. Stone; H. L. Mason; R. Ornduff; et al. 1957-4-4 10585 Contra Costa 3.0 miles south of Byron. Comment
  UC1101334  Myosurus minimus Herbert L. Mason 1952-4-26 14268 Contra Costa 3.5 mi s of Byron Comment
  UC407383  Myosurus minimus Ira L. Wiggins 1930-4-17 4580 Contra Costa 1/4 mi s Byron Comment
  CAS-BOT-BC83300  Myosurus minimus Ira L. Wiggins 1930-4-17 4580 Contra Costa 0.25 mile south of Byron. Comment
  UCD18346  Myriophyllum sibiricum M. R. Bell 1950-10-9 s.n. Contra Costa near Concord, from stock pond on farm of E.J. Mangini. Comment
  UC2042751  Myriophyllum verticillatum Barbara Ertter with Lynne Hosley 1991-9-22 10822 Contra Costa Lafayette Reservoir in hills SW of Lafayette, in water at E end of dam. Comment
  SD211501  Najas guadalupensis Barbara Ertter, Brad Olson 1991-9-28 10838 Contra Costa San Pable Reservoir between Orinda and El Sobrante, in shallow water at Sout end of reservoir 91 Comment
  UC2028254  Narcissus Barbara Ertter with Gary Schoolcraft 1996-4-7 14581 Contra Costa Molate Beach Park on San Francisco Bay north of San Rafael Bridge, coastal prairie and brushland on bluff Comment
  CAS-BOT-BC260128  Nassella pulchra Mary L. Bowerman 1935-4-26 2902 Contra Costa Mount Diablo. W of Indian Ceremonial Spring 1021 Comment
  JEPS73768  Nassella pulchra R. F. Hoover 1936-3-19 807 Contra Costa Byron Hot Springs Comment
  UC790940  Nassella pulchra A. A. Beetle 1941-3-28 1718 Contra Costa open cut Orinda Comment
  UCD87459  Nassella pulchra Beecher Crampton 1955-4-11 2472 Contra Costa city of Richmond, East Shore and San Pablo Avenues. Comment
  SEINET11268203  Nassella pulchra Barbara Ertter, Dan Norris 1998-6-18 16211 Contra Costa South Gate Road on south flank of Mount Diablo, ca 1 mile in from park boundary.; 0 Comment
  JEPS70310  Navarretia atractyloides K. Brandegee 1907-6-16 Contra Costa Judsonville Comment
  JEPS111398 Image available Navarretia gowenii David Gowen 2005-5-25 390 Contra Costa Lime Ridge Open Space on N side, just SE of one of the quarries. 182 Comment
  UC133782  Navarretia mellita Katharine Brandegee Sep 1892 Contra Costa Oakland Hills, Redwood Peak Redwood Peak; Oakland Hills, Redwood Peak Comment
  UC126029  Navarretia nigelliformis M. K. Curran 1888-5 Contra Costa Antioch Comment
  JEPS116990  Navarretia nigelliformis subsp. radians David Gowen 2008-4-16 857 Contra Costa West end of Horse Valley. 146 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
  UC691612  Navarretia pubescens Mary L. Bowerman 1930-6-10 298 Contra Costa Oak Knoll Picnic Grounds Mount Diablo Comment
  UC691764  Navarretia pubescens Mary L. Bowerman 1932-11-19 1652 Contra Costa Pioneer Camp 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
  JEPS87936  Navarretia squarrosa Barbara Ertter with Laura Fujii 1990-7-21 9398 Contra Costa w of Pleasant Hill (near junction of Briones Crest and Spengler trails); Briones Regional Park, Briones Hills 396 Comment
  UCD36024  Navarretia squarrosa Beecher Crampton 1949-6-5 469 Contra Costa Contra Cost County, along Highway 40, Pinole to San Pablo, above Garrity Creek, on top of West Hills. 30 Comment
  JEPS103662  Navarretia viscidula David Gowen 2003-7-9 Contra Costa Lime Ridge Open Space, grassy areas at N end 188 Comment
  SEINET3558412 Image available Nemophila divaricata Lewis S. Rose 1934-3-21 34062 Contra Costa 3 miles east of Clayton. Comment
  UC24164  Nemophila heterophylla J. Burtt Davy 1895-4-7 907 Contra Costa Antioch Comment
  UC592124  Nemophila heterophylla H. L. Mason 1928-4-29 4430 Contra Costa Sycamore Canyon , Sycamore Canyon (s slope Mount Diablo) Comment
  UC592125  Nemophila heterophylla H. L. Mason 1929-3-29 5125 Contra Costa Mount Diablo 762 Comment
  UC691707  Nemophila heterophylla Mary L. Bowerman 1931-5-7 806 Contra Costa n of crest Mount Diablo (North Peak Ridge, Mount Diablo); , North Peak Ridge Comment
  OBI48658  Nemophila heterophylla Lewis S. Rose 1940-4-11 40179 Contra Costa March Crk, 6 mi E of Clayton Comment
  RSA295080  Nemophila heterophylla Robert A. Norris, John L. Inase 1981-4-25 4142 Contra Costa Alongside Abrigo Valley trail, west part of Briones Regional Park (ca. 3 miles NNW Lafayette). 220 Comment
  SEINET4080336  Nemophila heterophylla M. W. Garcia 1960-1 60070 Contra Costa Near drinking fountain on Mount Diablo. Lower Terrace Camp. 609 Comment
  UC24234  Nemophila menziesii J. Burtt Davy 1895-4-7 875 Contra Costa Antioch Comment
  RSA421347  Nemophila menziesii var. menziesii Mark Morris 1929-2-22 s.n. Contra Costa Mt. Diablo. Comment
  JEPS128779  Nicotiana acuminata var. multiflora Kevin Hintsa 1997-6-29 Contra Costa Mount Diablo State Park, floodplain of Pine Creek, near Pine Pond. Comment
  JEPS77015  Oemleria cerasiformis Robert M. Lloyd 1963-3-17 2142 Contra Costa 0.5 mi e Grizzly Peak Road intersection with Skyline Drive (on Skyline Drive (across from 7090 Skyline Drive), Huckleberry trail) Comment
  RSA0025334  Oemleria cerasiformis James R. Shevock 2012-8-12 40657 Contra Costa Tilden Regional Park, East Bay Regional Park District. Along Grizzly Peak Trail about midway between the upper and lower trailheads. 448 Comment
  RSA128906  Oemleria cerasiformis Peter H. Raven 1950-3-5 1409 Contra Costa Happy Valley Road, 2.8 miles above intersection with Upper Happy Valley road. 244 Comment
  UC2028047  Oemleria cerasiformis Barbara Ertter 1998-2-15 15916 Contra Costa Shell Ridge Open Space on northwest base of Mount Diablo, Coyote Creek upstream from Joaquin Pond. Comment
  UCSB25483  Oemleria cerasiformis Rieser, D. 1966-4-5 Contra Costa Tarry In., 0.8 mi. north from Sleepy Hollow Road, Orinda. 304 Comment
  CDA15227  Oenanthe sarmentosa G. F. Hrusa, D. Crowe 1998-5-8 14356 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg. Comment
  JEPS111600  Oenanthe sarmentosa A. G. Murdock 2004-6-4 324 Contra Costa Pacheco Marsh 5 Comment
  JEPS111606  Oenanthe sarmentosa D. G. Kelch 2003-8-13 03 .100 Contra Costa Martinez Marsh 0 Comment
  UC1606350  Oenanthe sarmentosa Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10680 Contra Costa n. Pittsburg (near confluence of Sacramento & San Joaquin Rivers, opposite Pittsburg Marina, Browns Island, marsh at edge of lagoon in center of w. end of island); Browns Island Comment
  JEPS96237  Oenothera curtiflora Barbara Ertter 1991-9-22 10827 Contra Costa sw El Cerrito (Point Isabel Regional Shoreline); Point Isabel Regional Shoreline Comment
  CAS-BOT-BC171588  Oenothera deltoides subsp. howellii J. H. Thomas 1953-4-25 3004 Contra Costa Antioch sand hills along San Joaquin River, 2 miles west of Antioch Bridge Comment
  JEPS43995  Oenothera deltoides subsp. howellii Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  UC1241161  Oenothera deltoides subsp. howellii Wm. Klein 1958-6-9 442 Contra Costa sandhills just n Antioch (along the channel) Comment
  UC763071  Oenothera deltoides subsp. howellii R. F. Hoover 1937-5-14 2112 Contra Costa Antioch sand-dunes Comment
  UC914280  Oenothera deltoides subsp. howellii Verne Grant and Alva Grant 1947-4-13 7926 Contra Costa sand hills by river e Antioch 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
  CDA38153  Oenothera deltoides subsp. howellii F. J. Brucato 1962-5-1 s.n. Contra Costa Antioch; Wilbur Ave. 0 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
  NY233529  Oenothera deltoides var. howellii A. Eastwood 1936-4-19 2147 Contra Costa Comment
  RSA0004532  Oenothera deltoides var. howellii Alice Eastwood, J. T. Howell 1936-4-19 2147 Contra Costa Sand dunes at Antioch Comment
  JEPS25159  Oenothera elata subsp. hookeri G. Thomas Robbins with John Weiler''G. Thomas Robbins (with John Weiler) 1959-5-23 4030 Contra Costa On low site at the northwest edge of Brooks Island San Francisco Bay, Richmond. Comment
  UC1607664  Orobanche uniflora Barbara Ertter with Michelle Seidl 1992-3-14 10918 Contra Costa Morgan Territory Regional Preserve e of Mount Diablo; Morgan Territory Regional Preserve Comment
  UC2027723  Orobanche uniflora Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15511 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  UC691747  Orobanche uniflora subsp. occidentalis Mary L. Bowerman 1935-5-18 3029 Contra Costa Mount Diablo. North of the large summit parking area. Exposure northeast. Comment
  JEPS21355  Orobanche vallicola Ray F. Smith 1956-9-23 Contra Costa n. base Mt. Diablo (Russellmann Park); , Russellmann Park Comment
  RSA407949  Orthocarpus purpurascens H. de Forest 1930-4-6 s.n. Contra Costa [No location information provided.] Comment
  UC2029198  Oxalis pes-caprae Barbara Ertter 2003-2-8 18093 Contra Costa Richmond Field Station (UC-Berkeley) Comment
  UC2028447  Panicum capillare Barbara Ertter with Chris Thayer 1996-10-25 15379 Contra Costa West side of Mount Diablo, North Gate Road 3 road miles below junction, near Mineral Spring Comment
  SEINET183704  Papaver heterophyllum L. Constance 1938-4-5 2193 Contra Costa NW base of Mount Diablo, 6 miles SE of Walnut Creek, Coast Ranges. Comment
  JEPS127671  Parapholis incurva Barbara Ertter with David Gowen and Michael Park 2017-5-2 22801 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  CAS-BOT-BC259648  Paspalum dilatatum R. E. Frenkel 1963-5-15 189 Contra Costa E side of Marsh Creek Road 2 miles E of Clayton Comment
  CDA5088  Passiflora tarminiana Barbara Ertter 1999-9-17 16846 Contra Costa South edge of El Cerrito at northeast base of Albany Hill, edge of paved lot at southwest corner of junction San Pablo Avenue and Carlson Avenue, near Cerrito Creek. 0 Comment
  UC573057  Pectocarya pusilla H. L. Mason 1931-4-5 5827 Contra Costa rd between Marsh Creek and Livermore Comment
  JEPS10358  Pedicularis densiflora W. L. Jepson 1923-2-18 9845 Contra Costa Las Trampas Ridge Comment
  JEPS65611  Pediomelum californicum F. T. Bioletti May, 1894 Contra Costa Mt. Diablo Comment
  UC692690  Pediomelum californicum Mary L. Bowerman 1935-6-1 3114 Contra Costa summit Mount Diablo Mount Diablo, summit (between the one-way roads) Comment
  POM161363  Pediomelum californicum Rimo Bacigalupi 1926-4-30 1348 Contra Costa Summit of Mt Diablo. Comment
  POM281783  Pellaea andromedifolia Lyman Benson 1931-3-18 2667 Contra Costa Martinez Comment
  UC1874923  Pellaea andromedifolia Ruth Kirkpatrick 2003-3-1 1141 Contra Costa Mount Diablo 396 Comment
  RSA686787  Pellaea andromedifolia H. de Forest 1930-4-6 s.n. Contra Costa SE of Mortonville. 274 Comment
  NY583786  Penstemon centranthifolius C. F. Baker 1903-4-25 2938 Contra Costa Antioch Comment
  NY583859  Penstemon centranthifolius A. A. Heller 1908-4-16 8895 Contra Costa East of Antioch 22.9 Comment
  UC41706  Penstemon centranthifolius J. Burtt Davy 1895-4-7 889 Contra Costa Antioch Comment
  POM14652  Penstemon heterophyllus subsp. purdyi C. F. Baker 1903-4-28 2872 Contra Costa Marsh Creek, Mt. Diablo. Comment
  CAS-BOT-BC327987  Pentachaeta alsinoides John Thomas Howell 1931-5-12 6476 Contra Costa Nortonville Comment
  RSA722064  Pentachaeta alsinoides Barbara Ertter, Lisa Schultheis 1995-4-27 14006 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; northwest side of open grassy ridge at end of Arbolado Drive. 122 Comment
  UC2027918  Pentachaeta alsinoides Barbara Ertter, Dan Norris 2001-4-8 17581 Contra Costa Lime Ridge Open Space east of Walnut Creek, high part of main ridge. Comment
  UC133407  Pentachaeta exilis C. F. Baker 1923-4-28 2826 Contra Costa Marsh creek Mount Diablo Comment
  UC697211  Pentachaeta exilis Mary L. Bowerman 1932-3-23 1132 Contra Costa grassy flat e of and overlooking Donner Canyon; Mount Diablo 304 Comment
  UC2029184  Pentagramma triangularis Barbara Ertter 1990-5-19 8999 Contra Costa Lafayette Ridge of Briones Regional Park N of Lafayette. Comment
  JEPS106992  Pentagramma triangularis subsp. triangularis J. Greenhouse with Kevin Hintsa 2004-4-5 5082 Contra Costa Mt. Diablo, Fire Interpretive Trail 1124 Comment
  UC1050369  Pentas lanceolata var. coccinea N. Floy Bracelin 1942-7-4 2179 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC413497  Persicaria amphibia Mary L. Bowerman 1935-9-13 3339 Contra Costa Mount Diablo. Hidden Pond Comment
  CAS-BOT-BC413781  Persicaria lapathifolia Walter Knight 1978-8-27 3163 Contra Costa Contra Loma Regional Park 30 Comment
  UC107330  Phacelia breweri Katharine Curran May 1883 Contra Costa Mt. Diablo Comment
  UC24303  Phacelia breweri W. H. Brewer 1058 Contra Costa Mount Diablo; ; Mt. Diablo Comment
  UC614672  Phacelia breweri L. Constance, J. L. Morrison 1938-4-5 2191 Contra Costa w slope of mt. near Deer Flat and head of Mitchell Canyon; South Coast Ranges, Mount Diablo 670 Comment
  UC735070  Phacelia breweri Lincoln Constance, T. Morley, R. H. Shan, and W. H. Wagner 1946-4-26 3034 Contra Costa below Devil's Pulpit; Mount Diablo, Devil's Elbow 1127 Comment
  UCD102378  Phacelia breweri Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 1070 Comment
  UC809824  Phacelia californica A. R. Kruckeberg 1949-4-2 1733 Contra Costa banks just above Toll Gate; Richmond-San Rafael Ferry Comment
  UCD32388  Phacelia californica Beecher Crampton 1950-4-22 533 Contra Costa Contra Costa County, between Concord Valley and Pittsburg, steep hillside of southern exposure in road cut along state highway 4. 152 Comment
  UC672410  Phacelia ciliata var. ciliata Herbert L. Mason 1929-3-31 5139 Contra Costa Briones Road Hills northeast of Mount Diablo Comment
  JEPS2024  Phacelia distans W. L. Jepson 1923-4-22 9879 Contra Costa Mt. Diablo Comment
  JEPS2399  Phacelia distans R. F. Hoover 1937-5-14 2116 Contra Costa Antioch sand-dunes Comment
  UC1084393  Phacelia distans G. Thomas Robbins 1937-4-25 143 Contra Costa along roadside to summit of Mt. Diablo Comment
  UC131485  Phacelia distans C. F. Baker 1903-4-28 2806 Contra Costa Antioch Comment
  RSA83075  Phacelia distans Verne Grant, Alva Grant 1947-3-16 7892 Contra Costa East of Antioch. Comment
  UC672425  Phacelia distans Herbert L. Mason 1929-3-15 5053 Contra Costa canyon back of Nortonville Comment
  JEPS2350  Phacelia divaricata Mary L. Bowerman 1935-4-26 2897 Contra Costa w Indian Ceremonial Spring; Mount Diablo 1021 Comment
  UC24351  Phacelia divaricata Harley P. Chandler 1901-4-5 968 Contra Costa Mt. Diablo Comment
  UC672340  Phacelia douglasii Herbert L. Mason 1929-3-31 5161 Contra Costa dunes along river near Antioch; San Joaquin River Comment
  UC672342  Phacelia douglasii H. L. Mason 1932-3-20 6838 Contra Costa Antioch Sand Hills Comment
  UC107571  Phacelia imbricata subsp. imbricata K. Brandegee June 1883 Contra Costa Antioch Comment
  POM118166  Phacelia phacelioides H. M. Hall, Essig 1916-5-31 10135 Contra Costa Mount Diablo 1140 Comment
  POM310991  Phacelia phacelioides Lincoln Constance, C. W. Sharsmith, H. S. Reed 1940-4-27 2574 Contra Costa North of Juniper Camp, Mount Diablo 762 Comment
  UC691330  Phacelia phacelioides Mary L. Bowerman 1933-5-2 1950 Contra Costa below Pioneer Camp; Mount Diablo 762 Comment
  UC691579  Phacelia phacelioides Mary L. Bowerman 1935-5-8 2974 Contra Costa Muir Area Mount Diablo 1005 Comment
  JEPS101085  Phacelia tanacetifolia Dean W. Taylor 1992-4-16 12394 Contra Costa S of Byron Hot Springs, in swale draining on E margin of NE1/4 SE1/4 Section 34 45 Comment
  JEPS1284  Phacelia tanacetifolia Linda Gehringer 1914-3-29 Contra Costa Brentwood Comment
  UC126023  Phacelia tanacetifolia Katharine Brandegee May 1907 Contra Costa Antioch Comment
  UC881270  Phacelia tanacetifolia Alice Eastwood 1915-5-30 4508 Contra Costa Mt. Diablo Comment
  CDA2278  Phalaris aquatica T. C. Fuller 1961-9-13 7003 Contra Costa Byron-Tracy Hwy (Hwy J4), 0.1 mile north of Delta-Mendota Canal. 0 Comment
  RSA720842  Phalaris aquatica Barbara Ertter, Richard K. Rabeler 1994-6-6 12823 Contra Costa Point Isabel in south Richmond Comment
  SEINET7296998 Image available Phalaris arundinacea Malcolm A. Nobs, S. Galen Smith 1949-1 945 Contra Costa Otto's Black Bass Resort, 4 miles north of Kingston. Comment
  SEINET11680669  Phalaris lemmonii I. L. Wiggins 1930-1 4583 Contra Costa 0.25 mi S of Byron Comment
  UC697140  Phalaris minor Mary L. Bowerman 1934-4-21 2533 Contra Costa Muir Area Mount Diablo (on 1931 burn); , Muir Area Comment
  UCD89185  Phalaris minor P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  CHSC79630  Phalaris paradoxa G. F. Hrusa; D. Crowe 1998-5-8 14401 Contra Costa Sacramento-San Joaquin River Delta. At E end of Dow Chemical property. 15 Comment
  JEPS72970  Phalaris paradoxa W. L. Jepson 1940-6-5 19937 Contra Costa Richmond Comment
  UC1818923  Phalaris paradoxa Barbara Ertter, Mary Bowerman 1995-6-11 14251 Contra Costa Shell Ridge Recreation Area southeast of Walnut Creek, at west base Mt. Diablo.; annual grassland near Indian Valley School entrance, clay soil (planted Clarkia also present). 91 Comment
  UC768491  Phalaris paradoxa R. F. Hoover 1937-5-14 2123 Contra Costa Byron Hot Springs Comment
  UCD146727  Phalaris paradoxa G. F. Hrusa; D. Crowe 1998-5-8 14401 Contra Costa Sacramento-San Joaquin River Delta. East end of Dow Chemical property. 15 Comment
  UCD89359  Phalaris paradoxa Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  PASA2099  Pholistoma membranaceum Annetta Carter 1929-3-31 Contra Costa near Clayton Comment
  UC24023  Pholistoma membranaceum J. Burtt Davy 1895-4-8 989 Contra Costa foothills Antioch Comment
  UCD120958  Pholistoma membranaceum J. M. Tucker 1981-4-25 4454 Contra Costa Antonio Souza Ranch southwest of Byron (extended Section NW quarter Sec. 31, R3E, T1S, Mt. Diablo Meridian). 309 Comment
  UC1078913  Phoradendron macrophyllum Job Kuijt 1958-1-12 1443 Contra Costa near Walnut Creek (Saranap); Saranap Comment
  UC1795770  Phoradendron macrophyllum Barbara Ertter, Brad Olson, Diane Lake, Seth Adams, et al. 1994-9-11 13085 Contra Costa Chaparral Springs addition to Mt. Diablo State Park, north side of Marsh Creek Road at high point southeast of Clayton, open oak woodland (Canyon live oak, blue oak, buckeye); north facing slope with local grove of Fraxinus, Aesculus, toyon. Comment
  CAS-BOT-BC141122  Phoradendron serotinum subsp. macrophyllum L. R. Abrams 1916-7-29 6307 Contra Costa Walnut Creek Comment
  UC6099  Phoradendron villosum J. Burtt Davy 1895-4-7 911 Contra Costa Antioch Comment
  UC692038  Phoradendron villosum Mary L. Bowerman 1930-9-9 450 Contra Costa knoll by canyon running past Gabriel Hinks' Comment
  UC692039  Phoradendron villosum Mary L. Bowerman 1932-1-23 1077 Contra Costa knoll w. of the knoll between Sycamore Ridge and 1920 point Mt. Diablo Comment
  CAS-BOT-BC260888  Phragmites australis A. D. E. Elmer 1903-7-1 4541 Contra Costa Martinez Comment
  POM181424  Phragmites australis I. L. Wiggins 1930-4-18 4588 Contra Costa Jersey Island Comment
  CAS-BOT-BC260885  Phragmites australis Doreen Smith 2003-10-25 s.n. Contra Costa Martinez shoreline Comment
  SBBG122964  Phyla nodiflora B. Ertter 1990-9-10 9634 Contra Costa Briones Hills S of Martinez, Maricich Lagoon at jct of Alhambra Crk Trail and Old Briones Rd; Briones Regional Park 335 Comment
  UC692672  Pickeringia montana var. montana Mary L. Bowerman 1933-2-4 1690 Contra Costa flat e Mt. Diablo-North Peak divide; Mount Diablo 822 Comment
  UCD48018  Picrasma quassioides Ellen Dean; Petra Unger 2005-7-19 2700 Contra Costa Contra Costa Water District land, Byron Tract, just S of Hwy 4, along Old River, on the east bank. 1 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
  UC534973  Pilularia americana Katharine Brandegee 1909-4-24 Contra Costa between Antioch and Marsh Creek (Briones Rd.) Comment
  JEPS47899  Pinus attenuata W. L. Jepson 1909-9-1 Contra Costa Mortaga Ridge Comment
Read comments Aug 18 2011
  UC1134138  Pinus attenuata R. W. Lundh 1932-8-27 148 Contra Costa 1 mi w Cave point; Mt. Diablo Quad. 579 Comment
  UC692104  Pinus attenuata Mary L. Bowerman 1933-5-11 2080 Contra Costa Inner Black Hills , Mount Diablo (w end of chaparral n of crest) Comment
  JEPS46807  Pinus coulteri T. H. Goodspeed 1909-1-1 Contra Costa near Clayton (Mt. Diablo); Mt. Diablo Comment
  JEPS47871  Pinus coulteri W. L. Jepson 1909-6-25 3116 Contra Costa Mt. Diablo Comment
  UC1061678  Pinus muricata N. Floy Bracelin 1941-10-19 1713 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  SEINET3874454 Image available Pinus radiata James K. Detling 1963-3-21 39 Contra Costa Near Glorietta School, Orinda, California.; 0 91 Comment
  CAS-BOT-BC72777  Pinus sabiniana L. R. Abrams 1921-5-25 8057 Contra Costa Near summit of Mt. Diablo Comment
  JEPS46901  Pinus sabiniana W. L. Jepson 1907-4-27 2648 a Contra Costa saddle at e head Mitchell Canyon; Mt. Diablo, Mitchell Canyon Comment
  CAS-BOT-BC137272  Piperia elegans John Thomas Howell 1942-8-23 17862 Contra Costa Field redacted by CAS, contact the data manager for more information Comment
  CDA39511  Piperia elongata D. G. Kelch 2005-6-24 5 .381 Contra Costa Carquinez Strait Region; 5th Street Prairie, Crockett. Comment
  RSA0029766  Piptatherum miliaceum Barbara Ertter, CNPS 1990-11-11 9709 Contra Costa Carquinez Straits Regional Park east of Crockett, near abandoned settlement near Port Costa. Comment
  UC2028244  Pistacia atlantica Barbara Ertter, Tony Morosco 1998-9-18 16418 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, western quarry area. Comment
  UC1301084  Plagiobothrys acanthocarpus Helen K. Sharsmith 1963-4-7 5299 Contra Costa near Byron; San Francisco Bay Region 7 Comment
  UC189202  Plagiobothrys acanthocarpus Edw. L. Greene 1889-3-23 Contra Costa Byron Comment
  RSA666367  Plagiobothrys acanthocarpus Barbara Ertter 1989-4-5 8117 Contra Costa Alkali sink W and adjacent to Clifton Court Forebay, ca 15 air miles SW of Stockton 0 Comment
  RSA0027645  Plagiobothrys bracteatus Barbara Ertter 1998-5-3 16058 Contra Costa Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. 274 Comment
  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
  UC2070494  Plagiobothrys bracteatus Barbara Ertter 2001-3-18 17568 Contra Costa Shell Ridge Open Space SW of Walnut Creek, Hammmill/Corral Spring Trail north of Ginder Gap. Comment
  SEINET3152901  Plagiobothrys canescens L. S. Rose 1933-3-29 33046 Contra Costa Pittsburg Comment
  UC518020  Plagiobothrys canescens Lewis S. Rose 1933-4-17 33098 Contra Costa Antioch Comment
  UC882307  Plagiobothrys canescens Lewis S. Rose 1933-3-29 33046 Contra Costa Pittsburg Comment
  SEINET8731527 Image available Plagiobothrys canescens Lewis S. Rose 1933-1 33046 Contra Costa Pittsburg. Comment
  JEPS61038  Plagiobothrys humistratus E. L. Greene 1889-3-23 Contra Costa Byron Comment
  JEPS116917  Plagiobothrys humistratus David Gowen, Chris Thayer 2009-4-6 983 Contra Costa Cowell Ranch west of dam. Comment
  UC766406  Plagiobothrys infectivus R. F. Hoover 1941-4-12 4835 Contra Costa 1 mi n Lone Tree Valley 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
  UC78124  Plagiobothrys stipitatus var. stipitatus Mrs. K. Brandegee Apr 1883 Contra Costa near Antioch Comment
  UC1178520  Plagiobothrys tenellus Ethel Crum 1936-4-5 1742 Contra Costa two mi w Byron; South Coast Ranges 45 Comment
  CDA40663  Plagiobothrys trachycarpus A. G. Murdock 2004-3-19 230 /231 Contra Costa Carquinez Strait; Hercules - Carbon. Comment
  CHSC67897  Plagiobothrys trachycarpus James D. Jokerst 1988-3-21 2995 Contra Costa Los Vaqueros project in Livermore Valley ca. 1 mi W of Vasco Rd. and ca. 0.5 mi S of Camino Diablo Rd. Comment
  JEPS116833  Plagiobothrys undulatus David Gowen 2007-5-8 706 Contra Costa Briones Regional Park, around Maricich Lagoon. Comment
  UC2029103  Plantago coronopus Barbara Ertter 1990-10-24 9684 Contra Costa Martinez Regional Shoreline on Carquinez Strait. Local near arch bridge. Comment
  RSA0026162  Plantago coronopus Barbara J. Ertter 1990-10-24 9684 Contra Costa Martinez Regional Shoreline on Carquinez Strait. Near arch bridge. Comment
  UC2028080  Plantago coronopus Barbara Ertter, Tony Morosco 1998-4-12 15990 Contra Costa Base of Mount Olympia on north side of Mount Diablo, open flat below quarry NE of Olympia Trail. Comment
  JEPS7118  Plantago elongata W. L. Jepson May 23 1891-May 24 1891 Contra Costa Mt. Diablo Comment
  CDA42160  Plantago elongata Jim Jokerst 1989-3-28 3063 Contra Costa Northwest of junction of Byron Hot Springs Road and Armstrong Road. Northeast of Livermore. 0 Comment
  PASA26  Plantago erecta Annetta Carter 1929-3-31 Contra Costa Near Clayton Comment
  UC2042062  Plantago erecta Katie Gallagher with Nick Jensen 2014-4-26 189 Contra Costa Las Tramps Regional Wilderness. Comment
  UC691531  Plantago erecta Mary L. Bowerman 1933-4-15 1848 Contra Costa s of Arroyo del Cerro; Mount Diablo Comment
  JEPS111998  Plantago lanceolata A. G. Murdock 2004-5-28 271 Contra Costa Pinole Peak 205 Comment
  JEPS22024  Plantago lanceolata G. Thomas Robbins with S. Galen Smith 1958-6-2 3852 Contra Costa just e Hercules city boundary (Franklin Canyon Road (State Highway 4)); Refugio Valley 18 Comment
  JEPS99965  Plantago lanceolata G. Smick 2003-5-30 GAS 203 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS112002  Platanus racemosa D. G. Kelch 2003-8-13 03 .122 Contra Costa Arroyo del Hambre Along Alhambra Creek E of Mt Wanda. w/ AGM 74 Comment
  UC101597  Platystemon californicus Katharine Brandegee 1907-5-5 g Contra Costa between Antioch and Marsh Creek; between Antioch and Marsh Creek Comment
  UC1126493  Platystemon californicus R. C. Wilson 1935-3-26 143 Contra Costa 2 mi n Walnut Creek; Concord Quad. Comment
  UC56196  Platystemon californicus H. M. Hall 1901-3-16 1654 Contra Costa Point Richmond; region of San Francisco Bay, Point Richmond Comment
  UC692175  Platystemon californicus Mary L. Bowerman 1933-4-15 1868 Contra Costa canyon s Arroyo del Cerro, Mount Diablo (rocky knoll 250 ft below spring, Mount Diablo); Mount Diablo Comment
  UC692174  Platystemon californicus Mary L. Bowerman 1932-3-23 1133 Contra Costa rocky outcrop overlooking Donner Canyon, Mount Diablo; Mount Diablo 304 Comment
  UC2027798  Plectritis ciliosa Barbara Ertter with Brad Olson, Dianne Lake 1996-4-14 14587 Contra Costa East side of Mt. Diablo, access from Morgan Territory Road to Prospectors Gap Road, gate between archery range and private ranch Comment
  UC691527  Plectritis ciliosa subsp. ciliosa Mary L. Bowerman 1931-3-29 629 Contra Costa Mount Diablo, on n side of Cave Point below summit Cave Point; Mount Diablo, Cave Point Comment
  RSA517359  Plectritis congesta subsp. nitida L. T. Dempster 1954-6-4 P 16 Contra Costa Wildcat Canyon Road, N of Orinda. Comment
  PASA292  Plectritis macrocera Annetta Carter 1929-3-31 Contra Costa Near Clayton Comment
  UC74929  Plectritis macrocera C. F. Baker 1903-4-28 2813 Contra Costa Mount Diablo, Mitchell's Canyon Mount Diablo; Pacific Coast, , Mitchell's Canyon Comment
  UC2028569  Pleuropogon californicus Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15517 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  UC400145  Pleuropogon californicus Ynes Mexia 1929-4-21 2388 Contra Costa junction of Franklin Canyon Comment
  UCD90183  Pleuropogon californicus R. Tofsrud 1946-4-1 s.n. Contra Costa 1/2 mile south of Pacheco Comment
  CAS-BOT-BC260943  Pleuropogon californicus var. californicus W. H. Brewer 1862-5-1 1043 Contra Costa Walnut Creek Comment
  CAS-BOT-BC260946  Pleuropogon californicus var. californicus Peter Kamb; Francia Chisaki; Galen Smith 1951-4-14 1978 Contra Costa Margins of small pond 0.2 miles south of junction of Highways 4 and 21, 7 miles north of Walnut Creek Comment
  UCD90186  Pleuropogon californicus var. californicus R. Tofsrud 1946-4-1 s.n. Contra Costa Concord airfield. Comment
  CAS-BOT-BC356095  Pluchea Vincent Jones 1920-8-28 s.n. Contra Costa Orwood Comment
  JEPS40446  Pluchea odorata var. odorata R. F. Hoover 1937-8-31 2703 Contra Costa Avon Comment
  CDA29001  Poa annua D. G. Kelch 2006-5-7 6 .159 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  UCD90259  Poa annua A. A. Beetle 1942-3-22 2925 Contra Costa Brooks Island in San Francisco Bay. Comment
  UC697142  Poa howellii Mary L. Bowerman 1933-6-3 2247 Contra Costa summit Mt Diablo (ridge n of lower junction of 1-way rds) Comment
  POM301025  Poa secunda Mary L. Bowerman 1933-5-8 2020 Contra Costa Fossil Ridge near crest, on north side by side road, Mount Diablo Comment
  CAS-BOT-BC236394  Poa secunda subsp. secunda Alice Eastwood 1921-4-18 10289 Contra Costa Antioch Comment
  CAS-BOT-BC236397  Poa secunda subsp. secunda Alice Eastwood 1893-5-3 s.n. Contra Costa Antioch Comment
  UC692472  Poa secunda subsp. secunda Mary L. Bowerman 1935-5-18 3028 Contra Costa n of summit parking area Meridian Peak; Mt Diablo 1036 Comment
  UC70975  Poa secunda subsp. secunda H. M. Hall 1901-3-17 1661 Contra Costa Pt Richmond Comment
  SEINET5554719  Poaceae J. Hamai 1985-1 s.n. Contra Costa Russell Reserve. Comment
  UC1607677  Pogogyne serpylloides Barbara Ertter, Chris Thayer 1993-5-7 11696 Contra Costa East Bay Municipal Utilities District land e. Tilden Park (Hopkins Spring 0.5 mi. s.e. of Inspiration Point on Wildcat Canyon Rd.); Hopkins Spring 304 Comment
  UC570734  Pogogyne serpylloides Herbert L. Mason 1924-5-13 1014 Contra Costa Ridge south of Claremont Canyon, Berkeley Hills Comment
  UC691728  Pogogyne serpylloides Mary L. Bowerman 1938-5-28 3639 Contra Costa North road 5.4 miles from North Gate 457 Comment
  UC1192326  Polygonum amphibium Malcolm A. Nobs and S. Galen Smith 1949-7-7 938 Contra Costa Webb Island Sacramento Delta peat lands Comment
  CDA9497  Polygonum aviculare D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .222 Contra Costa Byron Airport. Comment
  CAS-BOT-BC414177  Polygonum aviculare subsp. depressum R. E. Frenkel 1963-9-8 278 Contra Costa On Walnut Blvd., Walnut Creek Comment
  UC1818918  Polygonum lapathifolium Barbara Ertter 1995-8-19 14503 Contra Costa Edge of Cerrito Creek on north side of Albany Hill, south edge of El Cerrito; dense weeds at edge of sluggish water. Comment
  CDA1502  Polygonum ramosissimum var. ramosissimum D. G. Kelch 1996-10-17 s.n. Contra Costa Carquinez Strait; Pt Edith Marsh Comment
  UC1614416  Polypodium calirhiza Charles M. Belshaw 1935-12-28 1427 Contra Costa on trail above ranch house Las Trampas Ridge 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
  UCR254830  Polypogon Peter Rubtzoff 1968-9-18 5966 Contra Costa North Gate Road, c. 5 miles NW of Mt. Diablo State Park north entrance 58 Comment
  UC1819008  Polypogon interruptus Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14233 Contra Costa South side Mount Diablo, Sheepherder Springs complex 1/2 mile north of Curry Point, wet ground in grassland. 487 Comment
  POM264543  Polypogon monspeliensis A. A. Beetle 1941-6-24 1750 Contra Costa Point Richmond on San Francisco Bay. Comment
  UC665693  Polypogon monspeliensis Thomas Morley 1940-11-21 85 Contra Costa banks at upper end of San Leandro Lake near mouth of Redwood Creek; upper end of San Leandro Lake, near mouth Redwood Creek 129 Comment
  UC692382  Polypogon monspeliensis Mary L. Bowerman 1932-8-27 1521 Contra Costa spring s of Turtle Rock Mount Diablo; , spring s of Turtle Rock Comment
  UCD91221  Polypogon monspeliensis A. A. Beetle 1941-6-24 1750 Contra Costa Point Richmond on San Francisco Bay. Comment
  UCR2722  Polypogon monspeliensis A. A. Beetle 1941-6-24 1750 Contra Costa Point Richmond on San Francisco Bay Comment
  SD34474  Polypogon monspeliensis A/. A. Beetle 1941-6-24 1750 Contra Costa Point Richmond on San Francicso Bay, wet sandy places Comment
  UC2013044  Polypogon viridis Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14917 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate road along Little Pine Creek. Comment
  CAS-BOT-BC76719  Polystichum lemmonii C. G. Pringle 1881-8-19 s.n. Contra Costa Mountains about eh head waters of the Sacramento River Comment
  RSA693322  Polystichum munitum Mark Morris 1929-03 s.n. Contra Costa Mt. Diablo. Comment
  UC2042775  Potamogeton berchtoldii Barbara Ertter with Lynne Hosley 1992-8-29 11267 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, stock pond near junction of Eagle and Volvon trails at north end of preserve. Comment
  SBBG122780  Potamogeton diversifolius B. Ertter, B. Olson 1991-9-28 10839 Contra Costa S end of San Pablo Reservoir between Orinda and El Sobrante 91 Comment
  CHSC106696  Potamogeton filiformis Barbara Ertter; Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10715 Contra Costa Browns Island N of Pittsburg near confluence of Sacramento and San Joaquin rivers opposite Pittsburg Marina. Tangled masses in water at W end of island. Comment
  JEPS99495  Potamogeton foliosus Mary Bowerman 1995-6-8 Contra Costa Mount Diablo, Pine Pond. Comment
  JEPS99587  Potamogeton pectinatus Mary Bowerman 1975-9-14 Contra Costa Mount Diablo, Hidden Pond. Comment
  JEPS78627  Potamogeton pectinatus Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3294 Contra Costa mouth of Crooked Slough; Browns Island, East Bay Regional Park District Comment
  UC2029168  Potamogeton pectinatus Barbara Ertter 2000-7-16 17399 Contra Costa Lower Pine Creek in Diablo Foothills Regional Park. Comment
  UC2046367  Potamogeton richardsonii Barbara Ertter 2015-10-9 22454 Contra Costa Antioch marina on San Joaquin River delta. Comment
  UCSC000363  Potentilla rivalis var. millegrana I. J. Condit 2008-8-19 s.n. Contra Costa Antioch Comment
  UCD122080  Proboscidea lutea S. C. Harvey 1946-9-23 Contra Costa Martinez, California. Comment
  JEPS111535  Prunus cerasifera D. G. Kelch 2005-5-6 05 .219 Contra Costa Franklin Canyon East of Christie Road. South of Route 4.. 127 Comment
  UC691115  Prunus cerasifera Mary L. Bowerman 1931-4-18 726 Contra Costa Sycamore Canyon: flat at junction of E and NE forks. Mt. Diablo 396 Comment
  UC2027738  Prunus cerasifera Barbara Ertter 1997-2-11 15452 Contra Costa North side of Mount Diablo, Donner Cabin site on Donner Canyon Road. Comment
  CDA33067  Prunus dulcis D. G. Kelch 2010-10-5 10 .415 Contra Costa The Delta; Just east of Antioch bridge. Comment
  JEPS112076  Prunus dulcis D. G. Kelch 2003-3-21 03 .43 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  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
  UC691157  Prunus subcordata Mary L. Bowerman 1931-4-5 674 Contra Costa between rocky point below Gregory Ranch and road below Mount Diablo Comment
  CDA26219  Prunus virginiana subsp. demissa A. G. Murdock, D. G. Kelch 2004-5-28 268 Contra Costa Carquinez Strait Region; Pinole Peak. Comment
  UC691120  Prunus virginiana var. demissa Mary L. Bowerman 1936-6-20 3415 Contra Costa w side of ridge w of Mount Zion (Mount Diablo); Mount Diablo 213 Comment
  CDA42354  Pseudognaphalium beneolens D. G. Kelch, Vince Guise 2012-7-26 12 .231 Contra Costa Carquinez Strait.; Martinez. Summit of Shady Glen Rd on sandstone outcrop. Comment
  UC2027968  Pseudognaphalium beneolens Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15663 Contra Costa Point Richmond, crest of road. Comment
  JEPS75564  Pseudognaphalium luteoalbum P. F. Yorks 1974-10-27 374 -1 Contra Costa 2.0 km s Bear Creek Road (on Hampton Road, n of Briones Reservoir, in Hampton Road Natural Reserve); Northern coast, Hampton Road Natural Reserve Comment
  UC2032810  Pseudognaphalium luteoalbum Doran, Andrew Scott 2012-3-20 680 Contra Costa Brooks island loading dock, North side of island. Comment
  CAS-BOT-BC357222  Pseudognaphalium microcephalum Walter Knight; I. Knight 1977-7-25 s.n. Contra Costa Black Diamond Mines Regional Preserve. Nortonville town site 167 Comment
  UC1584859  Pseudognaphalium stramineum Jerry Powell 1987-9-7 1522 Contra Costa San Pablo Reservoir San Pablo Reservoir (weed in floodplain) Comment
  RSA114056  Psilocarphus brevissimus H. L. Mason 1952-4-14 14266 Contra Costa 3.5 miles S of Byron Comment
  UC177448  Psilocarphus oregonus Alice Eastwood 1893-5-5 Contra Costa Brentwood Comment
  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
  RSA600819  Psoralea physodes Joseph A. Ewan 1934-4-8 8752 Contra Costa Mt. Diablo: Marsh Creek. 243 Comment
  POM138612  Ptelea baldwinii subsp. crenulata C. F. Baker 1903-4-28 2943 Contra Costa Mitchell's Canyon, Mt. Diablo. Comment
  CAS-BOT-BC148630  Ptelea crenulata Alice Eastwood; John Thomas Howell 1936-4-19 2134 Contra Costa Nortonville Comment
  JEPS112113  Ptelea crenulata D. G. Kelch 2004-5-2 04 .172 Contra Costa Crockett - Edwards Canyon 112 Comment
  JEPS40167  Ptelea crenulata H. L. Mason 1928-3-31 Contra Costa Mt. Diablo Comment
  JEPS97553  Ptelea crenulata R. D. Stone 1985-3-15 657 Contra Costa Souza Ranch Byron (hills dividing the Kellogg and Brushy Creek drainages; ca. 5 mi SW of) 259 Comment
  SDSU9372  Ptelea crenulata D. F. Howe 1968-5-20 4516 Contra Costa Nortonville. Comment
  UC1177068  Ptelea crenulata Joanne Taylor 1941-7-18 22 Contra Costa hills by Nortonville 213 Comment
  UC571097  Ptelea crenulata R. Bacigalupi 1926-4-30 1354 Contra Costa near summit Mt. Diablo Comment
  CAS-BOT-BC148619  Ptelea crenulata B. Crampton 1957-7-9 4273 Contra Costa Slopes above Carquinez Straits, 2-3 miles northwest of Martinez Comment
  CAS-BOT-BC148620  Ptelea crenulata Ethel Wickes 1917-6-1 s.n. Contra Costa Unspecified Comment
  UC2062647  Ptelea crenulata Barbara Ertter with Steve Matson 2003-11-11 Contra Costa Mount Diablo State Park, Deer Flat Road on north side of Moses Rock Ridge. Comment
  UC2070583  Pteridium aquilinum var. pubescens Barbara Ertter with Joanne Kerbavaz, David Gowen, Mike Park and Victoria Seidman 2004-4-22 18365 Contra Costa Alder Creek crossing on Green Ranch Road, south side of Mount Diablo summit. Comment
  CDA29027  Pterostegia drymarioides D. G. Kelch 2006-5-7 6 .155 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  RSA0068501  Pterostegia drymarioides Katie Gallagher, Nick Jensen 2014-4-26 173 Contra Costa Las Trampas Regional Wilderness. 365 Comment
  UC2042941  Pyracantha angustifolia Barbara Ertter 1991-5-12 9811 Contra Costa Point Isabel Regional Shoreline in SW corner of El Cerrito, on San Francisco Bay. Comment
  JEPS95248  Quercus Steve Edwards 1995-10-20 Contra Costa Round Top, W flank Robert Sibley Volcanic Regional Preserve Comment
  UC1543202  Quercus Donald G. Nelson 1939-12-3 642 Contra Costa n of Clayton (hillside opposite crest of trail from old brick ruin at coal mine) Comment
  UC2028193  Quercus X chasei Barbara Ertter 1997-11-1 15879 Contra Costa South side Mount Diablo, near Balancing Rock on Knobcone Point Road. Comment
  JEPS28855  Quercus X morehus James B. Roof, Irja Knight 1962-2-21 Contra Costa Moraga Ridge Comment
  JEPS104771  Quercus X morehus John L. Morrison 1937-3-6 1968 Contra Costa Comment
  RSA0026181  Quercus X morehus Barbara Ertter, Tony Morosco 1996-7-27 15038 Contra Costa North side Mount Diablo, Wasserman Trail below Cardinet Oaks Road. Comment
  CAS-BOT-BC45663  Quercus agrifolia Mary L. Bowerman 1930-6-3 225 Contra Costa West road, 1.9 miles from west entrance, Mount Diablo Comment
  CDA33514  Quercus agrifolia D. G. Kelch, Troy McGregor 2010-10-3 10 .412 Contra Costa Carquinez Strait; Hornbeck trail, west of Martinez. Comment
  JEPS37364  Quercus agrifolia W. L. Jepson Oct. 1909 3498 Contra Costa Moraga Ridge Comment
  RSA758316  Quercus agrifolia Doug Goldman 2004-11-3 2923 Contra Costa South side of Marsh Creek, north side of Morgan Territory Road. 354 Comment
  UC5476  Quercus agrifolia State Survey 1862-5-12 1079 Contra Costa Comment
  UCD45049  Quercus agrifolia J. M. Tucker 1946-4-4 1391 Contra Costa Spreading tree 35 feet tall; steep southeast-facing slope, elevation ca. 1200 feet; ca. 100 yards northwest of intersection of Grizzly Peak Boulevard and road to Easport, Oakland hills, Contra Costa County, California. Comment
  UCD45098  Quercus agrifolia John M. Burns 1959-3-4 s.n. Contra Costa Sand dunes along south side of San Joaquin River, just east of Antioch, Contra Costa County, California. Comment
  CAS-BOT-BC45662  Quercus agrifolia Mary L. Bowerman 1931-9-27 1050 Contra Costa Near Quicksilver Mine on N side of Noth Peak: near gully below road to mine, toward lower limits of oaks, Mount Diablo Comment
  CDA20379  Quercus agrifolia var. agrifolia P. Akers 2002-5-11 s.n.- 1 Contra Costa Northern California; Mt Diablo Summit Trail at water tank picnic area. 873 Comment
  UC2042966  Quercus berberidifolia Barbara Ertter, Brad Olson, Diane Lake, Seth Adams, et al. 1994-9-11 13092 Contra Costa Chaparral Springs addition to Mt. Diablo State Park, north side of Marsh Creek Road at high point southeast of Clayton. Comment
  UC691300  Quercus berberidifolia Mary L. Bowerman 1930-8-31 444 Contra Costa near Rock City (Dan Cook (Rock City) Canyon); Mount Diablo Comment
  UC691302  Quercus berberidifolia Mary L. Bowerman 1933-5-25 2194 Contra Costa Oyster Ridge, e of saddle (1300 ft), at w end of s-face Mount Diablo Comment
  RSA0041716  Quercus berberidifolia Mary L. Bowerman 1934-2-3 2479 Contra Costa Knob west of knoll at head of East Fork of Sycamore Canyon. Comment
  JEPS37845  Quercus chrysolepis W. L. Jepson 1920-8-12 9074 Contra Costa Black Hills Mt. Diablo Comment
  RSA476539  Quercus chrysolepis Mark Morris 1929-03 14907 Contra Costa Mt. Diablo. Comment
  CAS-BOT-BC86649  Quercus douglasii Joseph Andorfer Ewan 1933-10-15 8028 Contra Costa Mt. Diablo 1066 Comment
  UC1135462  Quercus douglasii C. M. Belshaw 1936-5-15 2133 Contra Costa Long Valley Mt. Diablo Quad. 228 Comment
  UCD57123  Quercus douglasii J. M. Tucker 1946-5-8 s.n. Contra Costa Mt. Diablo, along main road, above main gate. Comment
  CAS-BOT-BC86121  Quercus dumosa Mary L. Bowerman 1935-11-30 3355 Contra Costa Mount Diablo. Fossil Ridge, roadside Comment
  POM301005  Quercus durata Mary L. Bowerman 1932-10-16 1632 Contra Costa Donner Canyon Trail. Comment
  UC1135564  Quercus durata R. C. Wilson 1935-3-29 164 Contra Costa 1 mi w Deer Flat; Mount Diablo 685 Comment
  CDA37340  Quercus garryana D. G. Kelch 2010-10-31 10 .445 Contra Costa South Pinole Peak. Comment
  UC691287  Quercus garryana Mary L. Bowerman 1935-11-30 3352 Contra Costa between Gibralter Rock and Rock City Road; Mount Diablo Comment
  JEPS38080  Quercus kelloggii Frank W. Bancroft 1923-3-25 Contra Costa Pine Canyon Mt. Diablo Comment
  UC639150  Quercus kelloggii Annetta Carter 1939-11-18 Contra Costa between Orinda andf Moraga Comment
  UCD46663  Quercus kelloggii John M. Tucker 1941-8-28 386 Contra Costa Beside road up Curry Canyon, 7.5 miles south of junction with the road from Clayton to Byron, Contra Costa County, California. Comment
  UCSC008846  Quercus kelloggii Al Keuter 2014-5-23 AK 00 -096 Contra Costa Along Bear Creek Road at San Pablo Creek. 91 Comment
  OBI22995  Quercus kelloggii Cathy Peterson 1971-11-6 8 Contra Costa Mount Diablo, south side, approx 35 yds from Rock City entrance 610 Comment
  CAS-BOT-BC61605  Quercus lobata Mary L. Bowerman 1930-6-3 224 Contra Costa Mount Diablo. West road, 1.9 miles from entrance 167 Comment
  UC1135713  Quercus lobata R. W. Lundh 1932-9-1 154 Contra Costa 1 mi n Eagle Point; Mt. Diablo Quad. 228 Comment
  UC848107  Quercus lobata Lewis S. Rose 1938-10-28 38306 Contra Costa 6 mi e Clayton; Marsh Creek 152 Comment
  SEINET9356036  Quercus lobata Unknown 1938-10-28 Contra Costa Marsh Creek, 6 mi E of Clayton. Canyon bottom. Comment
  UC2028571  Quercus palmeri Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15519 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  UCD47102  Quercus palmeri J. M. Tucker 1981-4-25 4453 I Contra Costa California, Contra Costa County: Antonio Souza Ranch southwest of Byron (extended section NW quarter Sec. 31, R3E, T1S, Mt. Diablo Meridian). 309 Comment
  UCD17417  Quercus parvula var. shrevei E. Dean; with B. Ertter, J. M. Tucker, and K. Chaney 2000-9-13 653 Contra Costa California. Contra Costa County: City of El Sobrante; El Sobrante Ridge, upslope of the terminus of Heavenly Ridge Rd., just south of junction of Heavenly Ridge Trail and Manzanita Trail, along Manzanita trail. 213 Comment
  JEPS104763  Quercus wislizeni John L. Morrison 1937-3-6 1973 Contra Costa S of Antioch Comment
  UC1135847  Quercus wislizeni R. W. Lundh 1932-8-17 133 Contra Costa 1 mi e Round Valley; Mt. Diablo Quad. 518 Comment
  UC2029188  Rafinesquia californica Barbara Ertter 2000-5-14 17014 Contra Costa Donner Basin on north side of Mount Diablo, Falls Trail between Donner Creek and Wild Oat Canyon Comment
  UC311125  Ranunculus aquatilis A. D. E. Elmer May, 1903 4318 Contra Costa Mount Diablo Comment
  RSA0027644  Ranunculus aquatilis var. capillaceus Barbara J. Ertter 1998-5-3 16057 Contra Costa Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. 274 Comment
  JEPS112058  Ranunculus californicus D. G. Kelch 2004-5-2 04 .161 Contra Costa Crockett - Edwards Canyon Edwards Canyon, Crockett, Contra Costa County, CA 125 Comment
  UC1818977  Ranunculus californicus Barbara Ertter, Gary Schoolcraft, Tony Morosco 1996-4-6 14562 Contra Costa Grassy ridge east of Curry Point, Mount Diablo edge of Knobcone Point Road near Sloan Road junction, clay soil. 548 Comment
  UC1126160  Ranunculus canus C. M. Belshaw 1936-5-12 2110 Contra Costa 3.7 mi ene Tassajero (Plot 31); Mt. Diablo Quadrangle Comment
  POM268460  Ranunculus canus Lyman Benson 1931-3-28 2654 Contra Costa Danville; Mt. Range: Mt. Diablo 122 Comment
  UC2027988  Ranunculus canus Barbara Ertter 1998-5-3 16032 Contra Costa Pine Ridge summit of Wall Point Road at southwest base of Mount Diablo. Comment
  POM268694  Ranunculus canus var. laetus Jos. Burtt Davy 1895-4-7 925 Contra Costa Antioch Comment
  CDA1152  Ranunculus hebecarpus D. G. Kelch, A. G. Murdock 2005-5-1 5 .188 Contra Costa Carquinez Strait; Crockett; Edwards Canyon. Comment
  CDA31880  Ranunculus hebecarpus D. G. Kelch 2008-4-6 8 .033 Contra Costa Black Diamond Mines Regional Park. Near small picnic area between parking lot and mine entrance. 0 Comment
  NY353467  Ranunculus hesperoxys E. L. Greene 1887-4-16 s.n. Contra Costa Comment
  SEINET9161829  Ranunculus lobbii B. Ertter, D. Gowen 2006-3-1 18665 Contra Costa Upper San Leandro Reservoir Watershed (EBMUD) S of Moraga, along SE end of Rocky Ridge Road as it drops to King Canyon Road. 180 Comment
  UC692145  Ranunculus muricatus Mary L. Bowerman 1933-6-21 2342 Contra Costa edge of stream near Bilbaren Lodge (s of house, n of barn); Mount Diablo, Donner Canyon Comment
  RSA0029287  Ranunculus occidentalis Barbara J. Ertter, Dan Norris 2001-4-15 17607 Contra Costa Diablo Foothills Regional Park. At east end of Alamo Trail. 213 Comment
  POM289510  Ranunculus sceleratus H. L. Mason 1937-6-21 11547 Contra Costa 0.5 mile from the S end of Borden Hwy and 1.5 miles W of Byron. Comment
  CDA23557  Raphanus sativus D. G. Kelch 2008-3-3 8 .03 Contra Costa Carquinez Strait; Crockett. Under Zampa (Carquinez) Bridge. Comment
  UC1789165  Rhamnus alaternus Barbara Ertter with Tony Morosco 1998-10-18 16431 Contra Costa NW slope of Lime Ridge Open Space just S of Ygnacio Valley Road, bottom of swale at fenceline Comment
Read comments Apr 29 2013
  CDA4905  Rhamnus alaternus Barbara Ertter, D. Gowen 2006-4-14 18667 Contra Costa Lime Ridge Open Space at northwest base of Mt. Diablo; north side of Ygnacio Valley Road near culvert for major draw at bend in road. 0 Comment
  JEPS79401  Rhamnus californica Edward Lee with C. Belshaw 1935-12-28 1705 Contra Costa near Las Trampas Peak summit; Las Trampas Peak 502 Comment
  UC692600  Rhamnus californica Mary L. Bowerman 1935-6-21 3147 Contra Costa Arroyo del Cerro, e fork Mount Diablo 274 Comment
  JEPS41992  Rhamnus californica subsp. californica W. L. Jepson 1895-9-7 13977 Contra Costa Grizzly Peak Berkeley Hills Comment
  JEPS112064  Rhamnus crocea Christopher Thayer 1995-6-5 Contra Costa West of Pinole Peak 274 Comment
  JEPS112065  Rhamnus crocea A. G. Murdock 2004-5-28 290 Contra Costa Pinole Peak 405 Comment
  UC692581  Rhamnus crocea Mary L. Bowerman 1930-6-22 360 Contra Costa Mitchell Canyon Mount Diablo Comment
  SEINET12210181  Rhamnus crocea var. ilicifolia M. T. Doutt 1930-1 s.n. Contra Costa Marsh Creek Comment
  CAS-BOT-BC59898  Rhamnus ilicifolia L. R. Abrams 1910-10-8 4352 Contra Costa Mt. Diablo. 1158 Comment
  UC1121873  Rhamnus ilicifolia R. W. Lundh 1932-8-15 127 Contra Costa 1 mi w Round Valley; Mt. Diablo Quad. 228 Comment
  UC1121885  Rhamnus ilicifolia R. C. Wilson 1935-2-27 117 Contra Costa 2 mi s Clayton; Mt. Diablo Quad. 259 Comment
  UC692602  Rhamnus tomentella subsp. tomentella Mary L. Bowerman 1933-1-7 1687 Contra Costa Perkins Canyon, by dirt road Mount Diablo Comment
  UC1479602  Rhaponticum repens Ken Stevens 1980-6-1 Contra Costa 1/4 mi w of, along hwy 4 Discovery Bay 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
  JEPS75496  Ribes californicum P. F. York 1974-2-3 107 Contra Costa 1.4 km. s Bear Creek Road (on Hampton Road, N of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  SD2124  Ribes californicum Earle Mulliken 1905-2-5 161 Contra Costa Berkeley Hills. Comment
  UC69859  Ribes californicum H. M. Hall 1901-4-5 1758 Contra Costa Summit Mt. Diablo Region of San Francisco Bay Comment
  UC69857  Ribes divaricatum var. pubiflorum H. M. Hall 1900-3-24 Contra Costa Bear Creek San Francisco Bay Region Comment
  UC570821  Ribes malvaceum Herbert L. Mason 1924-11-23 1168 Contra Costa Las Trampas Ridge Comment
  UC692226  Ribes malvaceum Mary L. Bowerman 1930-10-19 486 Contra Costa West road = North Rd. Mount Diablo Comment
  SEINET14419467 Image available Ribes menziesii J. Arrigo 1975-3-6 10 Contra Costa Along Marsh Creek Road near Mt. Diablo area. 183 Comment
  LA205508  Ribes sanguineum Joseph Andorfer Ewan; 1934-3-10 8650 Contra Costa Wildcat Canyon, 1.5 mi. below Orinda road bridge Comment
  CAS-BOT-BC209363  Ribes sanguineum var. glutinosum H. E. McMinn 1925-1-1 22 Contra Costa Head of San Leandro Creek Comment
  SEINET13942922 Image available Ribes victoris Joseph Andorfer Ewan 1936-1 9739 Contra Costa Thickets along Wildcat Creek Comment
  CAS-BOT-BC362959  Rigiopappus leptocladus Mary L. Bowerman 1933-5-8 2016 Contra Costa Mount Diablo. Fossil Ridge near crest, on north side by side road Comment
  CAS-BOT-BC362960  Rigiopappus leptocladus Mary L. Bowerman 1933-5-8 2016 Contra Costa Mount Diablo. Fossil Ridge near crest, on north side by side road Comment
  UC697151  Rigiopappus leptocladus Mary L. Bowerman 1931-4-4 669 Contra Costa w Turtle Rock; Mount Diablo Comment
  POM301017  Rigiopappus leptocladus Mary L. Bowerman 1933-5-10 2061 Contra Costa Ridge at east end of, and south of, Meridian Flat. 823 Comment
  UC1818998  Robinia pseudoacacia Barbara Ertter, Tom Delendick 1996-5-2 14616 Contra Costa Mount Diablo State Park, Mitchell Canyon parking area, downstream. 182 Comment
  JEPS111063  Romulea rosea var. australis Lee Echols 2003-3-8 s.n. Contra Costa N of Lark Drive in S portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  UC1795617  Rosa Barbara Ertter 1993-4-2 11481 Contra Costa along railroad west of Crockett at west edge of Carquinez Straits Comment
  CDA9517  Rosa californica D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .245 Contra Costa CA Delta; Along the old San Joaquin River Channel, S of Clifton Court Forebay and SE of Byron. Comment
  JEPS78742  Rosa californica Edward Lee 1936-5-24 2155 Contra Costa about 1 mi se Curry Canyon; Morgan Territory, Marsh Creek Comment
  UC1789172  Rosa eglanteria Barbara Ertter 2001-11-3 17812 Contra Costa Tilden Regional Park, Selby Trail ca. 1/4 miles north of Lake Anza Comment
  SEINET10543527  Rosa sempervirens Walter H. Lewis 2007-10-5 Lewis 21093 Contra Costa Carquinez Regional Shoreline, W of junction of San Pablo Ave. and Vista del Rio. W-facing slope, W coastal scrub along abandoned road. 30 Comment
  CAS-BOT-BC147152  Rubus laciniatus Walter Knight; Bill Burley 1979-8-18 3445 Contra Costa Browns Island, Point Emmett Comment
  CAS-BOT-BC147359  Rubus pensilvanicus Walter Knight; B. Mortensen; B. Atwater; R. Bensler; J. Dean 1979-4-13 3369 Contra Costa Alder Point. Browns Island Comment
  UC1948959  Rubus ursinus William J. Ferlatte, L. Maynard Moe 1970-4-27 1243 Contra Costa San Francisco Bay: Red Rock Island Comment
  CAS-BOT-BC421865  Rumex acetosella Mary L. Bowerman 1935-5-18 3016 Contra Costa Mount Diablo. Road above Indian Ceremonial Spring: Roadbank at hairpin turn. Comment
  UC2029020  Rumex californicus Barbara Ertter 1999-7-17 16766 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, Wildcat Creek Trail between Rifle Range Road and boundary with Tilden Regional Park. Comment
  JEPS99578  Rumex conglomeratus Mary Bowerman 1995-6-4 Contra Costa Mount Diablo, Pine Pond Comment
  UC692167  Rumex conglomeratus Mary L. Bowerman 1930-8-24 420 Contra Costa Mitchell Canyon Mount Diablo Comment
  CDA22901  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
  UC407042  Rumex crispus Ira L. Wiggins 1930-4-18 4605 Contra Costa Jersey Island Comment
  CAS-BOT-BC433479  Rumex fueginus Walter Knight; Irja Knight 1980-8-26 3804 Contra Costa At Hercules Comment
  UC1328158  Rumex pulcher Olive Dyer 1936-10-18 100 Contra Costa about 0.5 mi below junction Wildcat Creek and Wildcat-Orinda road; Wildcat Canyon Comment
  CAS-BOT-BC433753  Rumex pulcher Mary L. Bowerman 1938-5-28 3644 Contra Costa Mount Diablo. Maple Spring 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
  CDA15273  Rumex salicifolius var. crassus G. F. Hrusa, D. Crowe, R. York 1998-7-17 14710 Contra Costa Sacramento Delta; E end of Dow Chemical property. Comment
  RSA0029279  Rumex salicifolius var. salicifolius Barbara J. Ertter, Tony Morosco 1996-7-27 15030 Contra Costa Mount Diablo State Park, Donner Creek ca. halfway between Regency Drive trailhead and old cabin site. 183 Comment
  JEPS75463  Rupertia physodes P. F. Yorks 1975-5-31 421 Contra Costa ca 1.7 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Reserve Comment
  JEPS22880  Rupertia physodes Helen J. McGinnis 1959-4-26 53 Contra Costa 1 1/2 mi from Tilden Park Nature Area (Wildcat Canyon); Wildcat Canyon 198 Comment
  UC1818938  Sagina apetala Barbara Ertter, Mary Bowerman et al. 1995-5-7 14056 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, road behind honses traversing north facing slope, mixed forest with much undergrowth. Comment
  UC13629  Sagina decumbens subsp. occidentalis J. P. Tracy 1900-3-24 610 Contra Costa low fields near Stege; San Francisco Bay Region Comment
  RSA0029774  Salicornia maritima Barbara Ertter 1990-9-30 9656 Contra Costa Point Pinole Regional Shoreline, on SW corner of park; edge of San Pablo Bay. Comment
  JEPS22092  Salicornia virginica G. Thomas Robbins 1958-7-19 3904 Contra Costa about 0.75 mi s Pt. San Pablo, Potrero San Pablo, Richmond; San Francisco Bay, Point Orient Comment
  JEPS22093  Salicornia virginica G. Thomas Robbins 1958-7-19 3904 Contra Costa about 0.75 mi s Pt. San Pablo, Potrero San Pablo, Richmond; San Francisco Bay, Point Orient 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-BC129918  Salix bonplandiana Mary L. Bowerman 1933-4-15 1854 Contra Costa Mount Diablo - canyon south of Arroyo del Cerro Comment
  UC650583  Salix exigua var. hindsiana Ira L. Wiggins 1930-4-18 4587 Contra Costa levee banks Jersey Isl. Comment
  CAS-BOT-BC107875  Salix gooddingii Ira L. Wiggins 1930-4-18 4591 Contra Costa Jersey Island Comment
  CDA15252  Salix gooddingii G. F. Hrusa, D. Crowe 1998-5-8 14383 b Contra Costa Sacramento Delta; Dow Ecological Reserve on Dow Chemical property at Pittsburg. Comment
  UC407030  Salix gooddingii Ira L. Wiggins 1930-4-18 4603 Contra Costa levees, Jersey Isl. Jersey Isl. Comment
  CAS-BOT-BC104084  Salix hindsiana Mary L. Bowerman 1935-5-30 3081 Contra Costa By Donner Canyon stream 152 Comment
  CAS-BOT-BC104087  Salix hindsiana Mary L. Bowerman 1935-5-30 3081 Contra Costa By Donner Canyon stream 152 Comment
  POM167563  Salix laevigata C. F. Baker 1903-4-28 2814 Contra Costa Mitchell Canyon. Mt Diablo. Comment
  POM300614  Salix laevigata Mary L. Bowerman 1933-4-15 1854 Contra Costa Canyon S of Arroyo del Cerro Comment
  UC437379  Salix laevigata J. Burtt Davy 1895-4-13 1011 Contra Costa near Lafayette Comment
  JEPS75492  Salix lasiolepis P. F. Yorks 1975-12-17 502 Contra Costa n of Briones Reservoir (ca. 1 km s of Bear Creek Rd. on Hampton Rd.); Hampton Road Natural Reserve 170 Comment
  JEPS75493  Salix lasiolepis P. F. Yorks 1976-1-31 503 Contra Costa n of Briones Reservoir (ca. 1 km. s of Bear Creek Rd. on Hampton Rd.); Hampton Road Natural Reserve 170 Comment
  JEPS97546  Salix lasiolepis R. D. Stone 1981-3-23 341 Contra Costa Huckleberry Trail Oakland Hills, near Alameda-Contra Costa county line (NE of intersection of Skyline Blvd. and Snake Rd.) 396 Comment
  UC1196652  Salix lasiolepis Joseph P. Tracy 1932-9-10 10786 Contra Costa Franklin Canyon Northern Coast Ranges (head) 152 Comment
  UC2032847  Salix lasiolepis Doran, Andrew Scott 2012-3-20 718 Contra Costa Southern part of Brooks Island, old quarry near gravel conveyer belt and grind house. Comment
  CDA20234  Salsola australis P. Akers 2003-10-7 B 107 Contra Costa San Joaquin Valley; Contra Costa water district, E edge of Discovery Bay on Hwy 4. Area a mix of S. australis and S. tragus. 7 Comment
  CAS-BOT-BC180752  Salsola tragus Peter Rubtzoff 1951-10-7 829 Contra Costa Sand duens along lower San Joaquin River, east of Antioch Comment
  UC1949074  Salsola tragus Barbara Ertter with CNPS 1990-9-16 9644 Contra Costa Bethel Island NE of Brentwood, E end of Gateway Road at W edge of Franks Tract State Recreation Area Comment
  UC634923  Salvia carduacea H. L. Mason 1929-3-31 5146 Contra Costa Briones Valley Comment
  UC575703  Salvia columbariae Lewis S. Rose 1935-5-16 35168 Contra Costa Mt. Diablo Comment
  JEPS112471  Salvia leucophylla D. G. Kelch 2005-5-1 05 .186 Contra Costa Crockett - Edwards Canyon. Below road near junction of Cummings Skyway and Crockett Blvd. 150 Comment
  JEPS112463  Salvia mellifera D. G. Kelch 2004-4-3 04 .55 Contra Costa Selby Road cut west of I-80 and Cummings Skyway junction 70 Comment
  UC32598  Salvia mellifera Chesnut and Drew 1889-4-16 Contra Costa Summerville Comment
  UC634921  Salvia mellifera H. L. Mason 1925-3-10 1291 Contra Costa Mount Diablo Comment
  UC691509  Salvia mellifera Mary L. Bowerman 1930-6-5 240 Contra Costa 2.9 mi from Mount Diablo West road entrance (=North Road); Mount Diablo 274 Comment
  RSA0068492  Salvia mellifera Katie Gallagher, Nick Jensen 2014-4-26 182 Contra Costa Las Trampas Regional Wilderness. 365 Comment
  SEINET12273224  Salvia mellifera M. T. Doutt 1930-1 89 Contra Costa Marsh Creek Comment
  UC25745  Salvia spathacea F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  JEPS100122  Sambucus mexicana G. Smick 2003-4-29 GAS 150 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA477576  Sambucus mexicana B. C. Templeton 1962-6-10 s.n. Contra Costa Mt Diablo. Comment
  CAS-BOT-BC238634  Sambucus nigra subsp. caerulea Barrett Anderson 1987-4-30 3487 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD 125 Comment
  JEPS100132  Sanicula bipinnata G. Smick GAS 90 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCSB4634  Sanicula bipinnata Kamb, Peter; Chisaki, Francia 1950-3-18 Contra Costa Head of Pine Canyon, Mt. Diablo 533 Comment
  UC1123182  Sanicula bipinnatifida C. M. Belshaw 1936-5-12 2107 Contra Costa 5 mi s of Round Valley 487 Comment
  CDA38526  Sanicula crassicaulis D. G. Kelch 2003-4-3 3 .367 Contra Costa Carquinez Strait Region; Cummings Skyway. Comment
  RSA760659  Sanicula crassicaulis William J. Ferlatte, L. Maynard Moe 1970-4-27 1226 Contra Costa San Francisco Bay, Red Rock Island. Comment
  UCD127982  Sanicula crassicaulis P. B. Kennedy 1925-4-26 s.n. Contra Costa near Sycamore Canon Trail, Mt. Diablo. Comment
  UC691461  Satureja douglasii Mary L. Bowerman 1931-5-23 892 Contra Costa n-facing bank in shaded bottom Alamo Canyon; Mount Diablo 487 Comment
  SEINET3819166 Image available Saxifraga virginiensis var. californica Lewis S. Rose 1932-3-26 32108 Contra Costa Nortonville. Comment
  SEINET3840825  Scabiosa atropurpurea Unknown 2006-6-23 6 .322 Contra Costa West Valona, West of Zampa Bridge above San Pablo avenue, along small stream draining north into the Western end of the Carquinez Strait 91 Comment
  CDA23106  Scandix pecten-veneris D. G. Kelch, D. A. Weinstein 2008-4-25 8 .079 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
  JEPS111609  Scandix pecten-veneris D. G. Kelch 2003-4-3 03 .349 Contra Costa Cummings Skyway South of Cummings Skyway and Crockett Blvd 134 Comment
  CAS-BOT-BC278210  Schedonorus arundinaceus D. E. Breedlove 1971-5-14 19341 Contra Costa Along Sierra Vista Way, Lafayette Comment
  CAS-BOT-BC111481  Schoenoplectus americanus Volney Rattan 1879-1-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC111483  Schoenoplectus americanus K. (Mrs.) Brandegee 1882-6-8 s.n. Contra Costa Antioch Comment
  SEINET10319578  Schoenoplectus americanus W. Knight 1977-6-10 s.n. Contra Costa Sand Creek near coal-mining site of Stewartville 158 Comment
  UC2070498  Schoenoplectus californicus Barbara Ertter 2005-8-15 18630 Contra Costa East side of Contra Loma Reservoir south of Antioch, marsh in SE cove. Comment
  SEINET192303  Scirpus acutus O. Woggoms, Woggoms 1930-4-18 4589 Contra Costa Jersey Island Contra Costa Co. Comment
  CDA15249  Scirpus maritimus G. F. Hrusa, D. Crowe 1998-5-8 14380 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Comment
  JEPS111883  Scirpus maritimus A. G. Murdock 2004-6-4 326 Contra Costa Pacheco Marsh near Waterfront Road 1 Comment
  JEPS111898  Scirpus microcarpus D. G. Kelch 2004-7-9 04 .308 Contra Costa Arroyo del Hambre Alhambra Creek, Martinez, Near Muir gravesite. 60 Comment
  CDA39144  Scirpus microcarpus D. G. Kelch 2003-4-13 3 .137 Contra Costa Carquinez Strait; Pinole Creek. Comment
  UC2070541  Scleranthus annuus Barbara Ertter with Chris Thayer 2002-4-13 17827 Contra Costa North side of Mount Diablo. Comment
  CAS-BOT-BC240009  Scribneria bolanderi John Thomas Howell 1953-3-15 28924 Contra Costa Rock City, Mt. Diablo Comment
  UC2027718  Scrophularia californica Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15520 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  JEPS95254  Scutellaria californica Steve Edwards 1991-7-15 Contra Costa Siesta Valley, E side, N of Hwy. 24 Comment
  JEPS62851  Scutellaria tuberosa W. L. Jepson May 23 1891-May 24 1891 14938 Contra Costa Mount Diablo Comment
  UC1713660  Scutellaria tuberosa Herbert L. Mason 1928-4-15 4342 Contra Costa top of Moraga Ridge Comment
  UC25824  Scutellaria tuberosa W. H. Brewer 1862-5-1 1037 Contra Costa s of Camp 69 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
  RSA0068478  Scutellaria tuberosa Katie Gallagher, Nick Jensen 2014-4-26 200 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  CAS-BOT-BC363290  Senecio aronicoides Alice Eastwood 1922-5-14 11319 Contra Costa Mt. Diablo Comment
  UC1606305  Senecio aronicoides Barbara Ertter, Chris Thayer 1993-5-7 11702 Contra Costa ca 1/2 mi n Vollmer (=Bald) Peak (in East Bay Municipal Utilities District land e of Tilden Park, just below ridge on ne-facing slope) 457 Comment
  UC691353  Senecio aronicoides Mary L. Bowerman 1930-6-10 304 Contra Costa summit Meridian Peak (Mount Diablo); , Meridian Peak summit Comment
  UC691356  Senecio aronicoides Mary L. Bowerman 1933-5-22 2166 Contra Costa Mount Diablo , Inner Black Hills (near crest, Inner Black Hills) Comment
  JEPS111534  Senecio glomeratus D. G. Kelch 2005-5-5 05 .218 Contra Costa Point Pinole - Giant Marsh Giant Salt Marsh 3 Comment
  JEPS37189  Senecio hydrophilus W. L. Jepson 1923-9-13 10210 Contra Costa n of Cerrito Creek; Berkeley Hills Comment
  CDA18812  Senecio mikanioides R. M. Case 1999-12-2 PDR 1219291 Contra Costa Along Wildcat Canyon Rd., 1.9 mi NW of intersection of Wildcat Canyon Rd. and Dam Rd., vicinity of Orinda. 0 Comment
  CAS-BOT-BC364553  Senecio vulgaris Ira L. Wiggins 1930-4-18 4597 Contra Costa Levee, n. end of Jersey Island Comment
  CAS-BOT-BC80264  Sequoia sempervirens John Thomas Howell 1927-2-6 2279 Contra Costa San Leandro [Canon] Canyon at Pinehurst 152 Comment
  CAS-BOT-BC80265  Sequoia sempervirens John Thomas Howell 1925-10-11 1500 Contra Costa Moraga Ridge, Oakland Hills Comment
  SEINET13289876 Image available Sequoia sempervirens L. S. Rose 1934-1 Contra Costa Redwood Canyon Comment
  SEINET3876354 Image available Sequoia sempervirens Judy Kaufman 1963-2-15 9 Contra Costa On slopes of Flicker Ridge.; 0 122 Comment
  RSA0029367  Setaria viridis Barbara Ertter, Mary Bowerman, Lisa Schultheis 1996-7-5 14921 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  CDA25239  Sherardia arvensis D. G. Kelch, D. A. Weinstein 2008-4-15 8 .044 Contra Costa Carquinez Strait; S Port Costa along Mckewen Rd. Comment
  UC72569  Silene antirrhina Chesnut and Drew 1889-4-16 Contra Costa Clayton Comment
  UC692651  Silene californica Mary L. Bowerman 1935-6-15 3138 Contra Costa crest of Eagle Point ridge at edge of chaparral and on margin of chaparral on w face..Arctostaphylos..Quercus burned in 1931 Mount Diablo, Eagle Point Ridge (are bordered by band Eriodictyon..) 792 Comment
  SEINET10760843  Silybum marianum Bonnie C. Templeton 1962-6-24 Templeton s.n. Contra Costa on the road to Mt. Diablo Comment
  SEINET4015801 Image available Silybum marianum B. C. Templeton 1962-1 sn Contra Costa On the road to Mt. Diablo. Comment
  CDA9510  Sinapis arvensis D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .237 Contra Costa CA Delta; Along Clifton Court Near Clifton Court Forebay. Comment
  JEPS111851  Sinapis arvensis A. G. Murdock 2004-2-12 207 Contra Costa Franklin Canyon east of McHarry Ranch Road 100 Comment
  UC1126829  Sinapis arvensis C. M. Belshaw 1936-5-13 2120 Contra Costa se of Deer Valley Deer Valley 91 Comment
  UC691255  Sinapis arvensis Mary L. Bowerman 1931-4-11 710 Contra Costa Ridge e of lower Pine Canyon (Mount Diablo); Mount Diablo Comment
  POM300602  Sinapis arvensis Mary L. Bowerman 1938-5-25 3634 Contra Costa North Road 2 miles from North Gate. 183 Comment
  RSA128364  Sinapis arvensis P. H. Raven 1950-3-5 1405 Contra Costa 0.75 mile from place where it meets Orinda - Richmond Road, Bear Creek Road. 107 Comment
  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
  SEINET12047240  Sisyrinchium bellum C. C. Getzinger 1964-1 23 Contra Costa Richmond, Arlington Blvd. at Patterson Circle 30 Comment
  UC570693  Solanum americanum H. L. Mason 1929-9-21 5445 Contra Costa 1 mi e of junction with road to Antioch (Bordon Highway); Bordon Highway Comment
  NY751923  Solanum californicum D. D. Keck 1933-11-2 2619 Contra Costa 1 mi. S.E. of Oakley. Comment
  UC2012998  Solanum nigrum Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14924 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek. Comment
  CHSC24836  Solanum umbelliferum M. A. Callahan 1976-4-14 16 Contra Costa 40 m ene of house at 1976 Mohawk Dr. Pleasant Hill. 106 Comment
  POM196036  Solanum umbelliferum R. Raven 1929-3-31 s.n. Contra Costa Marsh Creek Canyon. Comment
  SEINET6186041  Solanum umbelliferum P. Del Monte 1976-3-28 s.n. Contra Costa Morgan Territory Rd., 1 miles north of Curry Creek Park 122 Comment
  SEINET7262189 Image available Solanum umbelliferum J. T. Howell 1933-5-14 11291 Contra Costa E of St. Mary's College Comment
  UCD127012  Solanum umbelliferum Robert C. Bechtel 1952-4-12 56 Contra Costa West side Mount Diablo. 914 Comment
  UC2028128  Soliva sessilis Barbara Ertter with Richard K. Brummitt 1998-5-6 16080 Contra Costa Base of Mitchell Rock Trail on north base of Mount Diablo. Comment
  UC2028182  Soliva sessilis Barbara Ertter 1998-5-3 16036 Contra Costa Above SW fork of Pine Creek at southwest base of Mount Diablo. Comment
  POM181428  Sonchus oleraceus I. L. Wiggins 1930-4-18 4608 Contra Costa Jersey Island. Comment
  UC407040  Sonchus oleraceus Ira L. Wiggins 1930-4-18 4608 Contra Costa Jersey Island Comment
  CAS-BOT-BC374593  Sonchus oleraceus Walter Knight; Irja Knight; J. T. Howell; E. McClintock; et al 1978-9-5 3225 Contra Costa Browns Island. Sandy Knob Comment
  RSA720843  Spartina densiflora Barbara Ertter, Richard K. Rabeler 1994-6-18 12835 Contra Costa Point Pinole Regional Shoreline at north end of Richmond, beach on north side Whittell Marsh Comment
  UC606757  Spergula arvensis subsp. arvensis Edward Lee 1936-4-19 2003 Contra Costa near summit of the island Red Rock; San Francisco Bay, Red Rock Comment
  SEINET8728586 Image available Spergularia macrotheca Leo Koch 1940-1 1001 Contra Costa Two miles south of San Rafael ferry dock Comment
  CAS-BOT-BC390279  Spergularia macrotheca var. longistyla Alice Eastwood 1923-4-28 11667 Contra Costa Byron Springs Comment
  CDA15279  Spergularia marina G. F. Hrusa, D. Crowe, R. York 1998-7-17 14717 Contra Costa Sacramento Delta; E end of Dow Chemical property at Pittsburg. Comment
  RSA0098554  Spergularia marina C. F. Baker 1903-4-27 2865 Contra Costa Byron. Comment
  RSA0098555  Spergularia marina var. tenuis Barbara Ertter, J. D. Jokerst, D. Magney 1989-4-5 8135 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  CHSC23016  Spergularia salina Robert A. Schlising 1962-4-7 2141 Contra Costa Coast Ranges. Field along Deer Valley Road, few mi S of Antioch. Comment
  UC2043056  Spergularia villosa Barbara Ertter with Brad Olson 1991-10-13 10855 Contra Costa SW corner of Point Richmond, hillside across road from George Miller Jr. Regional Park. Comment
  NY222084  Sphaeralcea fasciculata var. elmeri A. D. E. Elmer 06 1903 4395 Contra Costa Mt. Diablo Comment
  CDA39223  Sporobolus indicus C. deNijs 2013-8-6 PDR# 070 P06137809 Contra Costa Vicinity of Knightsen. 0 Comment
  UC25957  Stachys albens Mrs. Brandegee 1882-7-8 Contra Costa Antioch Comment
  POM312580  Stachys albens Malcolm A. Nobs, S. Galen Smith 1949-7-8 943 Contra Costa Otto s Black Bass Resort, 4 miles north of Kingston. Comment
  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
  UC2055621  Stachys pycnantha Joseph Andorfer Ewan 1933-10-15 8043 Contra Costa Mt. Diablo. 1066 Comment
  UC691661  Stachys pycnantha Mary L. Bowerman 1930-6-28 402 Contra Costa Lower Silver Spring Mount Diablo. Comment
  RSA721866  Stachys rigida subsp. quercetorum Barbara Ertter, Brad Olson 1994-5-7 12756 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge, edge of San Francisco Bay. Comment
  SEINET9363840  Stachys rigida var. rigida Unknown 1979-4-29 27 Contra Costa Clayton, CA. Russleman Park Road off Marsh Creek Road, Concord Mt. Diablo Trail Ride Assoc. grounds; digger pine - oak woodland. Comment
  UC1070397  Stebbinsoseris heterocarpa C. M. Belshaw 1936-5-8 2069 Contra Costa 2 mi w Mt. Diablo summit; Mt. Diablo Quad. Comment
  JEPS111782  Stellaria media D. G. Kelch 2003-3-21 03 .58 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  CDA33818  Stellaria nitens D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .114 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  UC1328148  Stellaria nitens Olive Dyer 1937-4-18 290 Contra Costa abandoned road up Madrone Canyon tributary (Wildcat Canyon); Wildcat Canyon Comment
  UC2070629  Stellaria nitens Barbara Ertter with Joanne Kerbavaz, David Gowen, Mike Park and Victoria Seidman 2004-4-20 18362 Contra Costa Eagle Peak Trail on east side of Twin Peaks, north side of Mount Diablo. 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
  SEINET3130532  Stipa pulchra J. B. Davy 1900-3-24 6519 Contra Costa Point Richmond Comment
  UC10873  Streptanthus albidus subsp. peramoenus J. Burtt Davy 1893-5-13 212 Contra Costa Claremont Canyon to Fish Ranch fide fieldbook Comment
  CAS-BOT-BC87339  Streptanthus hispidus J. W. Congdon 1896-5-30 s.n. Contra Costa Mount Diablo. Comment
  JEPS81240  Streptanthus hispidus Paul Hutchison 1982-4-25 8007 a Contra Costa s-facing slope below huge rock outcrop at foot of summit trail Mt. Diablo Comment
  UC402742  Streptanthus hispidus H. M. Hall 1916-5-31 10139 Contra Costa w side Mt. Diablo 1097 Comment
  UC10898  Streptanthus tortuosus var. orbiculatus McLean 1800-1 Contra Costa Mount Diablo Comment
Read comments Jan 11 2013
  UC1950410  Stuckenia filiformis subsp. alpina Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10715 Contra Costa Brown Island N of Pittsburg near confluence of Sacramento & San Joaquin rivers opposite Pittsburg Marina; at W end of island Comment
  SD175848  Stuckenia pectinata D. G. Kelch 2006-9-11 06 471 Contra Costa Crockett Hills East Bay Regional Park. Near old barn and parking lot. 60 Comment
  CAS-BOT-BC422920  Stylomecon heterophylla James McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  JEPS51560  Stylomecon heterophylla W. L. Jepson 1925-4-26 10683 Contra Costa Black Hills Mt. Diablo; , Black Hills Comment
  JEPS78817  Stylomecon heterophylla Edward Lee 1936-5-24 2156 Contra Costa about 2 mi se Curry Canyon (Morgan Territory, Marsh Creek); Marsh Creek, Morgan Territory Comment
  UC767113  Stylomecon heterophylla R. F. Hoover 1938-5-4 3341 Contra Costa Marsh Creek Canyon 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
  RSA428933  Symphoricarpos albus var. laevigatus E. E. Stanford 1930-5-24 1509 Contra Costa Marsh Creek Canyon. Comment
  UC1618315  Symphyotrichum lentum Barbara Ertter, CNPS 1990-9-16 9647 Contra Costa Bethel Island Franks Tract State Recreation Area (ne of Brentwood, e end of Gateway Rd. at w edge of Recreation Area, base of lawn-covered levee at water's edge) Comment
  UC2042880  Symphyotrichum lentum Barbara Ertter, B. Olson, D. Lake, L. Hosley and A. Youngson 1991-10-20 10860 Contra Costa Dow Wetland Preserve, just W of Antioch. Comment
  JEPS111672  Symphyotrichum subspicatum D. G. Kelch 2003-6-22 03 .92 Contra Costa Selby At start of trail on south side in grassland 40 Comment
  UCD159500  Symphyotrichum subulatum var. parviflorum D. S. Park 2010-9-11 250 -1 Contra Costa Waterfront Rd. Growing along roadside. Disturbed. Wet. 5 Comment
  HSC6267  Taraxacum officinale Greg Bos 1963-3-9 38 Contra Costa 5712 San Jose Ave. Richmond 61 Comment
  UCD128114  Tauschia hartwegii Morris Halperin 1929-4-21 s.n. Contra Costa Moraga Valley. Comment
  JEPS49692  Tellima grandiflora W. L. Jepson 1891-6-9 13461 Contra Costa Fish Ranch Comment
  CAS-BOT-BC197424  Thinopyrum ponticum T. C. Fuller 1961-9-13 7001 Contra Costa Hwy J4, ca. 4 mi s.e. of Byron Comment
  JEPS111872  Thysanocarpus curvipes D. G. Kelch 2005-3-25 05 .90 Contra Costa Fernandez Ranch Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak 115 Comment
  UC691060  Thysanocarpus curvipes Mary L. Bowerman 1933-4-15 1879 Contra Costa second ridge s of Arroyo del Cerro Mount Diablo (crest of ridge, Mount Diablo); , s of Arroyo del Cerro Comment
  UC691086  Thysanocarpus curvipes Mary L. Bowerman 1935-5-16 2988 Contra Costa Russelman Park Mount Diablo (at end of road) Comment
  UCR143524  Thysanocarpus curvipes L. S. Rose 1933-4-17 33096 Contra Costa Antioch 30 Comment
  CAS-BOT-BC88261  Thysanocarpus curvipes Paul F. Covel 1936-4-19 210 Contra Costa Las Trampas (Cashion) Canyon. Comment
  RSA0069377  Thysanocarpus curvipes Katie Gallagher, Nick Jensen 2014-4-26 212 Contra Costa Las Trampas Regional Wilderness. 487 Comment
  UC117265  Thysanocarpus curvipes unknown Contra Costa Antioch; Epperson's Comment
  UC11038  Thysanocarpus curvipes subsp. curvipes W. H. Brewer 1862-5-12 1083 Contra Costa Mt. Diablo Comment
  SEINET3166335  Thysanocarpus laciniatus P. J. Alexander, C. D. Bailey 2009-3-30 968 Contra Costa Mount Diablo State Park, 0.3 miles east of the summit of Mt. Diablo on the trail to North Peak, 8.7 miles ESE of central Walnut Creek. 1006 Comment
  UC11040  Thysanocarpus laciniatus W. H. Brewer 1862-5-14 1097 Contra Costa Mount Diablo, Eagle Peak Comment
  CAS-BOT-BC172936  Toxicodendron diversilobum Alice Eastwood 1915-5-30 4551 Contra Costa Mt. Diablo Comment
  JEPS63917  Toxicodendron diversilobum W. L. Jepson 1894-9-7 13913 Contra Costa Bald Peak near Berkeley; Bald Peak Comment
  CDA938  Trientalis latifolia D. G. Kelch 2006-5-4 6 .126 Contra Costa Carquinez Strait; Vaca Canyon, on North facing road cut/bank along Alhambra Valley Road. Comment
  UC1328144  Trientalis latifolia Olive Dyer 1937-5-18 349 Contra Costa Wildcat Canyon, Canyon of C. C. C. tributary Wildcat Canyon Comment
  UC555481  Trifolium albopurpureum var. albopurpureum H. L. Mason 1928-4-26 4384 Contra Costa Berkeley-Oakland hills Comment
  UC555486  Trifolium albopurpureum var. albopurpureum H. L. Mason 1929-3-29 5119 Contra Costa Mt. Diablo 762 Comment
  UC575674  Trifolium albopurpureum var. albopurpureum Lewis S. Rose 1935-5-16 35174 Contra Costa Mt. Diablo Comment
  UC165554  Trifolium albopurpureum var. olivaceum J. Burtt Davy 1895-1 955 Contra Costa Antioch Comment
  CAS-BOT-BC5352  Trifolium bifidum William Henry Brewer 1862-5-29 1184 Contra Costa Marsh's Ranch, between Monte Diablo and the San Joaquin. Comment
  UC2070438  Trifolium bifidum Barbara Ertter with Dan Norris 2001-4-8 17591 Contra Costa Lime Ridge Open Space east of Walnut Creek, path northwest of summit installation. Comment
  JEPS100110  Trifolium bifidum var. decipiens G. Smick 2003-4-22 GAS 143 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC146057  Trifolium bifidum var. decipiens Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  RSA691925  Trifolium bifidum var. decipiens Barbara Ertter, Chris Thayer 1993-5-7 11714 Contra Costa Ca 1/2 mile N of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land E of Tilden Park. Grazing land on lower slopes S of Wildcat Canyon Road. Comment
  POM19314  Trifolium ciliolatum Katherine Brandegee s.n. Contra Costa Antioch Comment
  UC1818906  Trifolium ciliolatum Barbara Ertter, Chris Thayer 1995-4-25 13988 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Devil's Slide area of Sycamore Canyon, roadside thru chaparral zone. 304 Comment
  UC16529  Trifolium depauperatum var. amplectens C. Michener 1891-4-23 Contra Costa Point Isabel Comment
  UC630976  Trifolium depauperatum var. amplectens unknown 1928-4-19 10043 Contra Costa near Golf Links; Byron Hot Springs Comment
  UC630978  Trifolium depauperatum var. amplectens P. B. Kennedy 1925-4-26 Contra Costa above old rd (Mt. Diablo Meadow) Comment
  JEPS2905  Trifolium depauperatum var. depauperatum E. L. Greene April, 1884 Contra Costa Byron Comment
  UCD108372  Trifolium depauperatum var. depauperatum P. B. Kennedy Date Unknown s.n. Contra Costa Vicinity of Bryon Springs, Greene. Comment
  UC1795835  Trifolium depauperatum var. truncatum Barbara Ertter, Gary Schoolcraft 1996-4-7 14571 Contra Costa Point San Pablo in west Richmond, crest of road to yacht harbor, coastal grassland along ridge, scraped roadbed to tower. Comment
  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
  RSA721747  Trifolium dubium Barbara Ertter, Mary Bowerman 1995-5-7 14023 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, along road through annual grassland with scattered blue oak south of Marsh Creek. Road. summit. 305 Comment
  CDA4283  Trifolium fragiferum D. G. Kelch, A. G. Murdock 2005-5-6 5 .225 Contra Costa Carquinez Strait Region; Franklin Canyon. East of Christie Road. South of Route 4. Comment
  UC1607614  Trifolium fragiferum Barbara Ertter, Brad Olson 1993-8-8 12199 Contra Costa sw San Ramon; Bishop Ranch Regional Open Space Comment
  UC419042  Trifolium fucatum H. E. and S. T. Parks 1930-4-1 542 Contra Costa along hwy (in ditches); San Ramone Comment
  UCD109005  Trifolium fucatum P. B. Kennedy 1928-4-15 10056 Contra Costa Pinehurst. Comment
  UC555592  Trifolium gracilentum H. L. Mason 1928-4-13 4301 Contra Costa Richmond waterfront Comment
  UC631032  Trifolium gracilentum Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  POM300710  Trifolium gracilentum Unspecified 1933-5-9 2041 Contra Costa East of Pioneer Camp. Comment
  RSA61570  Trifolium gracilentum J. T. Howell 1933-5-14 11249 Contra Costa Hills east of St. Marys college Comment
  CDA27955  Trifolium gracilentum var. gracilentum D. G. Kelch, A. G. Murdock 2005-4-15 5 .151 Contra Costa Carquinez Strait Region; Rodeo Creek. EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump). Comment
  JEPS100105  Trifolium hirtum G. Smick 2003-4-8 GAS 124 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC555619  Trifolium macraei H. L. Mason 1928-4-13 4303 Contra Costa Richmond waterfront Comment
  UC555611  Trifolium microdon H. L. Mason 1928-4-13 4306 Contra Costa Richmond waterfront Comment
  POM301852  Trifolium microdon Mary L. Bowerman 1935-4-19 2870 Contra Costa Road about 7 miles from North Gate, ridge west of the power poles, above the road junction. 701 Comment
  UC16753  Trifolium obtusiflorum W. H. Brewer 1862-4-30 1005 Contra Costa Camp 69 Walnut Creek Comment
  JEPS4442  Trifolium oliganthum W. L. Jepson 1891-6-9 13698 Contra Costa Fish Ranch Comment
  UCD32493  Trifolium olivaceum Beecher Crampton 1950-4-22 534 Contra Costa Contra Costa County, along State Highway 4, in Concord Valley. 30 Comment
  UC2029138  Trifolium subterraneum Barbara Ertter with Alan Prather 2003-6-7 18203 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, creek alongside west end Stone Corral Trail, south of Highland Ridge Trail junction. 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
  UC2028957  Trifolium tomentosum Barbara Ertter 2002-5-8 17832 Contra Costa Richmond Field Station. Comment
  UC1130132  Trifolium willdenovii C. M. Belshaw 1936-4-8 2071 Contra Costa 2.25 mi e Clayton; Mt. Diablo quad 381 Comment
  UC16750  Trifolium willdenovii W. H. Brewer 1862-4-30 1021 Contra Costa Camp 69 Walnut Creek Comment
  UC16757  Trifolium willdenovii W. H. Brewer 1862-5-12 1076 Contra Costa Mt. Diablo Comment
  UC630906  Trifolium willdenovii P. B. Kennedy 1907-5-5 Contra Costa Lake Merritt Oakland Comment
  UC725897  Trifolium willdenovii A. A. Heller 1938-4-9 15017 Contra Costa 3 mi sw Antioch (from type region) Comment
  POM181463  Trifolium willdenovii I. L. Wiggins 1930-4-17 4575 Contra Costa 1/4 mi. S. of Byron. Comment
  POM300698  Trifolium willdenovii Mary L. Bowerman 1933-5-11 2083 Contra Costa Inner Black Hills: Grassy ridge, west end. Comment
  RSA517735  Trifolium willdenovii Donald G. Nelson 1937-3-30 474 Contra Costa Railroad tracks paralleling the highway south of Byron on road to Tracy Comment
  JEPS37726  Trifolium wormskioldii W. L. Jepson 1922-5-26 9671 Contra Costa North Berkeley Hills Comment
  UC16828  Trifolium wormskioldii Jos. Burtt Davy 1900-6-7 6663 Contra Costa near Martinez Comment
  CDA33819  Trifolium wormskioldii D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .107 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  UC692009  Trillium chloropetalum Mary L. Bowerman 1931-3-21 592 Contra Costa Mt. Diablo, Sycamore Canyon 350 Comment
  UCD139902  Trillium chloropetalum Morris Halperin 1929-4-21 s.n. Contra Costa St. Mary's College Campus. Comment
  UCD139903  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
  JEPS99597  Triodanis biflora Mary L. Bowerman 1978-5-14 Contra Costa Mount Diablo, Eagle Peak, mines trail. Comment
  CDA29048  Triphysaria pusilla D. G. Kelch 2006-5-7 6 .157 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. 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
  JEPS112499  Triteleia hyacinthina D. G. Kelch 2004-4-26 04 .145 Contra Costa Pt. Pinole. 1 Comment
  JEPS112496  Triteleia laxa D. G. Kelch 2004-5-9 04 .204 Contra Costa Crockett - Upper Edwards Canyon, Crockett, above Crockett Blvd 160 Comment
  JEPS58038  Triteleia laxa W. L. Jepson 1923-6-10 9986 Contra Costa vicinity San Francisco Bay (Head of Marsh Creek); , Mt. Diablo, Marsh Creek Comment
  JEPS58064  Triteleia laxa W. L. Jepson 1919-6-8 8332 Contra Costa Mt. Diablo Comment
  UC3318  Triteleia laxa W. H. Brewer 1862-4-25 995 Contra Costa Martinez Comment
  CAS-BOT-BC526330  Triteleia laxa Volney Rattan 1879-1-1 s.n. Contra Costa Antioch Comment
  SD39092  Triteleia laxa Mc Callum 1933-4-24 3700 Contra Costa Adobe field near wlnut Creek. Comment
  SEINET10533670  Triteleia laxa A. Arthur Heller 1908-4-17 Heller 8902 Contra Costa Hills three miles south of Antioch, 60 feet. Comment
  CAS-BOT-BC67356  Tropidocarpum capparideum Alice Eastwood 1914-3-14 3824 Contra Costa Byron Springs. Comment
  CAS-BOT-BC67404  Tropidocarpum gracile Alice Eastwood 1921-4-18 10295 Contra Costa Antioch. Comment
  CAS-BOT-BC67405  Tropidocarpum gracile H. L. Mason 1932-3-20 6842 Contra Costa Antioch. Comment
  UC14397  Tropidocarpum gracile Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  CAS-BOT-BC67409  Tropidocarpum gracile Charles Piper Smith 1922-4-15 3493 Contra Costa Antioch - S.P. depot - 0.5 mile east. Comment
  CDA1419  Typha angustifolia D. G. Kelch, Andrew G. Murdock 2003-8-13 3 .105 Contra Costa Carquinez Strait Region; Martinez Marsh. Comment
  JEPS111914  Typha angustifolia Dean G. Kelch and Andrew G. Murdock 2003-8-13 DGK 03 .105 Contra Costa Martinez Marsh. Comment
  UC692073  Typha domingensis Mary L. Bowerman 1938-6-14 3677 Contra Costa Mineral Spring Mount Diablo (along streamlet); , Mineral Spring 350 Comment
  UCD94828  Typha domingensis Malcolm A. Nobs 1950-8-20 s.n. Contra Costa Alkaline seep area, water ca. 2 inches deep, Nortonville. Comment
  UC2028519  Typha latifolia Barbara Ertter 1996-11-24 15429 Contra Costa West side of Mount Diablo, Pine Pond along Stage Road in Pine Canyon. Comment
  JEPS111915  Ulmus glabra Dean G. Kelch and Andrew G. Murdock 2004-9-2 DGK 04 .341 Contra Costa Martinez (Ozol) CA East of Ozol. Comment
  UC2070596  Ulmus minor Barbara Ertter with Chris Thayer 2002-4-13 17826 Contra Costa North side of Mount Diablo, on north face of Mount Olympia. Comment
  UC2070593  Ulmus pumila Barbara Ertter 2001-3-18 Contra Costa Shell Ridge Open Space SW of Walnut Creek, persisting at Indian Creek School. Comment
  CAS-BOT-BC91090  Umbellularia californica Alice Eastwood 1922-3-17 11086 Contra Costa Mount Diablo. Comment
  UC854889  Umbellularia californica Alice Eastwood 1922-3-17 11086 Contra Costa Mount Diablo Comment
  JEPS36176  Uropappus lindleyi W. L. Jepson 1918-6-3 7578 Contra Costa Donner Canyon Mt. Diablo 533 Comment
  UC691468  Uropappus lindleyi Mary L. Bowerman 1933-5-9 2060 Contra Costa Muir Area , Muir Area (Mount Diablo) Comment
  UC691469  Uropappus lindleyi Mary L. Bowerman 1931-4-5 682 Contra Costa s Russelman Park (Mount Diablo); Mount Diablo 381 Comment
  UC691797  Uropappus lindleyi Mary L. Bowerman 1931-4-4 632 Contra Costa two mi by road from North Gate Mount Diablo (Mount Diablo); Mount Diablo Comment
  UC336484  Uropappus lindleyi unknown Contra Costa near Mt. Diablo Comment
  RSA0029769  Urospermum picroides Barbara Ertter 1990-6-18 9133 Contra Costa Tilden Regional Park, along Nimitz hiking/bicycle trail near Inspiration Point. Comment
  UC2028520  Urtica urens Barbara Ertter 1997-1-5 15438 Contra Costa Lime Ridge Open Space on northwest side of Mount Diablo, section on north side of Ygnacio Valley Road. Comment
  CDA9519  Verbena brasiliensis D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .248 Contra Costa CA Delta; Along the old San Joaquin River Channel, S of Clifton Court Forebay and SE of Byron. Comment
  UC1192064  Verbena hastata Malcolm A. Nobs and S. Galen Smith 1949-7-8 942 Contra Costa 4 mi n Kingston (Otto's Black Bass Resort); Otto's Black Bass Resort Comment
  UC723797  Verbena lasiostachys var. lasiostachys Joseph Andorfer Ewan 1936-7-5 9726 Contra Costa Wildcat Creek near CCC camp Wildcat Creek Comment
  UC691578  Verbena lasiostachys var. scabrida Mary L. Bowerman 1930-10-4 481 Contra Costa Maple Spring Comment
  UC691729  Verbena lasiostachys var. scabrida Mary L. Bowerman 1930-6-22 371 Contra Costa Deer Flat Spring. Comment
  UC2028357  Verbena litoralis Barbara Ertter with Tony Morosco 1998-7-11 16372 Contra Costa Antioch Marina, in riverside tidal marsh Comment
  UC2070533  Veronica americana Barbara Ertter with Dan Norris 2000-12-3 17555 Contra Costa West side Mount Diablo, Maple Spring on North Gate Road just south of Angel Kerley Road junction. Comment
  JEPS16491  Veronica peregrina subsp. xalapensis W. L. Jepson 1940-6-5 19932 Contra Costa Richmond Comment
  UC407386  Veronica peregrina subsp. xalapensis Ira L. Wiggins 1930-4-17 4581 Contra Costa 1/4 mi s of Byron Comment
  UC1050168  Viburnum japonicum N. Floy Bracelin