Search Results — 2000 specimen records retrieved (1342 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UC1211990  Abutilon theophrasti R. P. and Perry Allen 1961-8-11 Contra Costa 4 mi e Byron Comment
  CAS-BOT-BC331612  Acer macrophyllum Paul F. Covel 1940-4-21 s.n. Contra Costa Las Trampas Canyon Comment
  JEPS75525  Acer macrophyllum P. F. Yorks 1976-4-6 124 Contra Costa on Hampton Road ca 1.7 km s Bear Creek Road (e of road, n of Briones Reservoir); Hampton Road Natural Reserve 200 Comment
  UC18113  Acer macrophyllum J. Burtt Davy May 1898 Contra Costa creek at San Ramon region of Mount Diablo, San Ramon Comment
  UCSB11596  Acer macrophyllum Grah, Nancy 1962-4-14 Contra Costa Corner of Lombardy Lane and Sleepy Hollow Lane, Orinda 152 Comment
  SBBG27295  Acer negundo A. Carter 1937-4-4 1229 Contra Costa Moraga Valley, 2.5 mi N of Moraga 182 Comment
  JEPS42725  Acer negundo var. californicum W. L. Jepson 1908-8-16 3084 Contra Costa Walnut Creek 22 Comment
  LA210535  Acer negundo var. californicum Annetta M. Carter; 1937-3-28 1227 Contra Costa Moraga Valley, 2.5 mi N of Moraga. 182 Comment
  UC579853  Achillea millefolium Annetta Carter 1936-4-19 1116 Contra Costa hollow e side of island Red Rock; San Francisco Bay Comment
  CAS-BOT-BC29887  Achyrachaena mollis James I. W. McMurphy 1909-5-21 s.n. Contra Costa Antioch Comment
  UC691544  Achyrachaena mollis Mary L. Bowerman 1931-3-29 627 Contra Costa Cave Point Ridge Comment
  UC75304  Achyrachaena mollis C. F. Baker 1903-4-27 2795 Contra Costa Byron Comment
  CAS-BOT-BC29888  Achyrachaena mollis Paul F. Covel 1938-4-18 s.n. Contra Costa Altamont Pass Comment
  CAS-BOT-BC133155  Adenostoma fasciculatum Brandegee s.n. Contra Costa Antioch Comment
  RSA498006  Adenostoma fasciculatum Robert F. Hoover 1939-04 20470 Contra Costa Head west branch Markley Canyon 305 Comment
  UC1127729  Adenostoma fasciculatum R. W. Lundh 1932-9-9 163 Contra Costa 1/2 mi. s.e. Nortonville; Mt. Diablo Quad. 381 Comment
  JEPS100160  Adiantum jordanii A. Langston 2003-6-19 AL 52 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  SEINET6412858  Adiantum jordanii C. Newberry 1994-4-30 7255 Contra Costa Mount Diablo State Park, trail from Mitchell Cn. Prkng to Donner Cr. 900 Comment
  UC691793  Agoseris heterophylla var. heterophylla Mary L. Bowerman 1933-5-11 2093 a Contra Costa Rock City Ridge; Mt. Diablo Comment
  UC691794  Agoseris heterophylla var. heterophylla Mary L. Bowerman 1933-5-18 2127 Contra Costa grassy slope Blackberry Spring; Mount Diablo Comment
  UC585072  Agoseris hirsuta G. L. Stebbins Jr. 1936-5-16 1562 Contra Costa w Berkeley Country Club Comment
  CDA29002  Agrostis avenacea D. G. Kelch 2006-11-11 06 .505-B Contra Costa Carquinez Strait; Along RR tracks N of Pt Pinole in swale W of RR. Comment
  JEPS127233  Agrostis avenacea Lowell Ahart, Josephine Guardino 2016-4-19 20787 Contra Costa 1.4 miles (air) northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Dam, approximately 25 miles (air) southwest to Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  JEPS100030  Agrostis exarata A. Langston 2003-6-6 AL 35 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2028512  Agrostis hallii Barbara Ertter 1996-11-24 15416 Contra Costa Southwest side of Mount Diablo, Wall Point Road across Pine Ridge ca 1/2 air miles ENE of Macedo Ranch. Comment
  CDA31461  Agrostis pallens D. G. Kelch 2006-5-27 6 .217 Contra Costa Pinole Valley Park, S of Pinole Valley Road near crest of El Sobrante Ridge. Comment
  UCD149001  Agrostis pallens D. Kelch; Suzanne Latham, Matt Beyers 2009-6-3 09. 335 Contra Costa El Sobrante Ridge at end of Silver Belt Dr. 198 Comment
  RSA0027413  Agrostis stolonifera Barbara Ertter, Richard K. Rabeler, Tony Morosco 1997-6-10 15670 Contra Costa Martinez Regional Shoreline, south edge of Carquinez Strait. Comment
  JEPS99592  Agrostis viridis Mary Bowerman 1993-10-22 Contra Costa Mount Diablo, Pine Pond, South side. Comment
  UC2028373  Aira caryophyllea Barbara Ertter 1998-6-20 16233 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo. Alkali Pond at Wiget Lane entrance. Comment
  UC692389  Aira caryophyllea Mary L. Bowerman 1942-5-24 3844 Contra Costa Lower Rock City Camp Mount Diablo, Fossil Ridge 457 Comment
  POM300734  Aira caryophyllea Mary L. Bowerman 1942-5-24 3844 Contra Costa Lower Rock City Camp, Fossil Ridge 457 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
  CAS-BOT-BC445378  Alisma plantago-aquatica Volney Rattan 1886-6-16 s.n. Contra Costa Walnut Creek Comment
  CAS-BOT-BC175360  Allenrolfea occidentalis J. Burtt Davy 1898-5-1 s.n. Contra Costa Byron Springs, Mt. Diablo region Comment
  RSA411795  Allenrolfea occidentalis E. E. Stanford 1930-5-24 1520 Contra Costa Near Byron. Comment
  UC3090  Allium acuminatum Edw. L. Greene 1892-1 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC459418  Allium acuminatum Mary L. Bowerman 1930-6-14 329 Contra Costa Meridian Peak Summit, North slope, Mount Diablo Comment
  UC767482  Allium crispum R. F. Hoover 1939-3-29 3944 Contra Costa Kircker Pass Comment
Read comments
Feb 8 2013
  JEPS56390  Allium serra W. L. Jepson 1918-6-3 7581 Contra Costa Donner Canyon Mt. Diablo, Donner Canyon 609 Comment
  UC692028  Allium serra Mary L. Bowerman 1933-4-26 1932 Contra Costa Perkins Canyon branch between the main ridge of North Peak and the ridge to its south Mount Diablo, Perkins Canyon 518 Comment
  UC766759  Allium serra R. F. Hoover 1936-3-19 808 Contra Costa Pittsburg Comment
  CAS-BOT-BC475528  Allium serra Alice Eastwood 1923-5-4 11730 Contra Costa Mt. Diablo Comment
  UC1789187  Allium triquetrum Barbara Ertter 2000-5-20 17027 Contra Costa Sibley Volcanic Regional Preserve, Oakland Hills, accessible trail on ridge behind interpretative center. Locally established in understory of eucalyptus-oak-pine flores; onion-scented, flowers white. Comment
  UC1481549  Allium unifolium Neil Havlik 1980-5-16 919 Contra Costa e Little Farm; Tilden Regional Park Comment
  UC692025  Allium unifolium Mary L. Bowerman 1932-5-6 1426 Contra Costa near road, Mitchell Canyon Mt. Diablo, Mitchell Canyon 243 Comment
  SEINET8731247 Image available Allocarya stipitata Lewis S. Rose 1936-1 36155 Contra Costa 8 mi. S. of Antioch 30 Comment
  UC691610  Allophyllum divaricatum Mary L. Bowerman 1932-4-16 1340 Contra Costa little s. of 1682 Eagle Point ridge; Mt. Diablo Comment
  JEPS108354  Allophyllum gilioides David Gowen 2005-4-3 223 Contra Costa Mt. Diablo State Park. Rhine Canyon just below Devils Elbow. Comment
  CAS-BOT-BC170926  Alnus rhombifolia Mary L. Bowerman 1931-10-13 1058 Contra Costa Mount Diablo. Alamo Canyon 259 Comment
  CAS-BOT-BC170931  Alnus rhombifolia Walter Knight 1965-3-1 910 Contra Costa Antioch Dunes, along water's edge - Carquinez Straights Comment
  CAS-BOT-BC170932  Alnus rhombifolia Alice Eastwood 1914-2-24 3732 Contra Costa Antioch Comment
  RSA21881  Alnus rhombifolia L. S. Rose 1938-10-28 38307 Contra Costa Marsh Creek, 6 miles E of Clayton. 152 Comment
  UC13501  Alnus rhombifolia W. C. Blasdale 1891-3-7 Contra Costa San Pablo Comment
  SEINET12027584  Alnus rhombifolia L. S. Rose 1938-1 38307 Contra Costa Marsh Creek, 6 mi E of Clayton 152 Comment
  UC691933  Amaranthus albus Mary L. Bowerman 1938-8-2 2389 Contra Costa Sheep Camp Spring, by North Road Mt. Diablo 533 Comment
  CDA15289  Amaranthus albus G. F. Hrusa, D. Crowe, R. York 1998-7-17 14729 Contra Costa Sacramento Delta; Along top of levee separating Dow Ecological Reserve and San Joaquin R. Comment
  UCD97779  Amaranthus retroflexus J. D. Sauer 1953-8-14 1640 Contra Costa Near Marsh Creek Lodge. Comment
  UC881400  Amsinckia intermedia Lewis S. Rose 1941-3-13 41032 Contra Costa 3 mi s Byron 15 Comment
  RSA0069374  Amsinckia intermedia Katie Gallagher, Nick Jensen 2014-4-26 215 Contra Costa Las Trampas Regional Wilderness. 487 Comment
  JEPS20865  Amsinckia lunaris R. F. Hoover 1938-4-20 3178 Contra Costa lower end San Pablo Reservoir Comment
  LA29456  Amsinckia lunaris Francia Chisaki; Peter Kamb 1952-5-4 2275 Contra Costa Bear Creek Road, 1.5 mi. E of Orinda-Richmond road (leaving this road ca. 1 mi. N of Orinda) Comment
  UCD119713  Amsinckia lunaris Francia Chisaki; Peter Kamb 1952-5-4 2275 Contra Costa Bear Creek Road, 1.5 miles east of Orinda-Richmond road (leaving this road ca. 1 mile north of Orinda). Comment
  CDA9450  Amsinckia menziesii D. G. Kelch 1992-3-21 1822 -A Contra Costa 2.5 mi. SE of Byron; along RR tracks, N of junction of Holey Rd. and Byron Hwy. 0 Comment
  CDA9522  Amsinckia tessellata var. tessellata D. G. Kelch, Michael Park, Abigail Moore 2007-5-2 7 .252 Contra Costa Altamont Hills; Frontage Rd. S. of Patterson Pass Rd. & I-580 Comment
  UC78256  Amsinckia tessellata var. tessellata K. Brandegee 1892-5-1 Contra Costa Antioch Comment
  UC2062621  Anagallis arvensis Barbara Ertter with Joanne Kerbavaz et al. 2003-5-8 18173 Contra Costa South Gate Road on south side of Mount Diablo. Comment
  RSA465156  Anagallis arvensis Ynez Whilton Winblad 1935-4-18 s.n. Contra Costa Taken north of Pinole. Comment
  UC2062623  Anagallis arvensis Barbara Ertter 2002-5-11 17835 Contra Costa Southwest base of Mount Diablo, east end of Green Valley Trail at crossing of private drive. Comment
  CAS-BOT-BC45253  Ancistrocarphus filagineus Mary L. Bowerman 1935-4-17 2832 a Contra Costa Mount Diablo, West road 2 miles from entrance, just west of chaparral. 243 Comment
  UC2027713  Ancistrocarphus filagineus Barbara Ertter with Stu Garrett 1997-3-29 15526 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  UC35144  Androsace elongata subsp. acuta W. C. Blasdale 1896-2-28 Contra Costa w Clayton (Clayton) 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
  CDA1107  Angelica californica D. G. Kelch, A. G. Murdock 2003-8-13 3 .127 Contra Costa Carquinez Strait; Vaca Canyon. Comment
  UC692259  Angelica californica Mary L. Bowerman 1932-5-6 1420 Contra Costa Mount Diablo, Mitchell Canyon Mitchell Canyon; Mount Diablo, Mitchell Canyon 228 Comment
  UC40554  Anthemis cotula Brewer May 1862 1177 Contra Costa Comment
  UC691616  Antirrhinum kelloggii Mary L. Bowerman 1932-4-27 1390 Contra Costa w of Riggs Canyon (s-face Oyster Ridge); Mount Diablo, Oyster Ridge 335 Comment
  UC1050713  Antirrhinum majus subsp. tortuosum N. Floy Bracelin 1941-4-13 1137 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS83303  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum David M. Thompson 1984-8-12 405 Contra Costa 0.25 mi n water of Briones Reservoir (at the end of Hampton Road); Briones Valley Quad. 198 Comment
  UC2029063  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum Barbara Ertter 2000-7-29 17447 Contra Costa Donner Basin on north side of Mount Diablo, Cardinet Oaks Road at junction with Falls Trail. Comment
  JEPS45617  Aphanes occidentalis W. L. Jepson 1931-4-5 15720 Contra Costa Nortonville 396 Comment
  UC20822  Apiastrum angustifolium Edw. L. Greene 1892-6-20 Contra Costa Mount Diablo Comment
  UC1594204  Apocynum cannabinum Jerry Powell 1991-6-11 1606 Contra Costa Antioch Nat'l Wildlife Refuge Comment
  UC692088  Aquilegia formosa Mary L. Bowerman 1935-5-18 3021 Contra Costa across the rd and a little east from the parking area Mount Diablo 1066 Comment
  UC692182  Aquilegia formosa Mary L. Bowerman 1938-6-14 3686 Contra Costa Juniper Camp Mount Diablo Comment
  CAS-BOT-BC128691  Arbutus menziesii C. Keefer 1922-9-25 s.n. Contra Costa Moraga Ridge Comment
  CAS-BOT-BC128692  Arbutus menziesii W. W. Carruth 1900-4-1 s.n. Contra Costa Redwood Canyon [Canon] 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
  UC400150  Arbutus menziesii Ynes Inexia 1929-4-21 2382 Contra Costa Moraga Valley Comment
  UCD117499  Arbutus menziesii Morris Halperin 1929-4-21 s.n. Contra Costa St. Mary's College Campus. Comment
  UCSB11594  Arbutus menziesii Grah, Nancy 1962-4-20 Contra Costa 2.0 miles east of San Pablo Dam on Wildcat Canyon Road, 4 miles east of Berkeley 274 Comment
  JEPS40121  Arceuthobium campylopodum Miss Ferguson 1920-1-1 Contra Costa Donner Canyon Mt. Diablo Comment
  RSA721736  Arceuthobium occidentale Barbara Ertter, Mary L. Bowerman, Lisa Schultheis, Kevin Hintsa 1995-10-22 14533 Contra Costa Three Springs Trail on northeast side of Mt Diablo, wood above ranch. 366 Comment
  RSA21875  Arctostaphylos andersonii var. pallida Joseph A. Ewan 1934-1-7 8162 Contra Costa Head of San Leandro Creek above Oakland. Comment
  CAS-BOT-BC24115  Arctostaphylos auriculata Mary L. Bowerman 1932-9-5 1546 Contra Costa Inner Black Hills: Near fire trail which runs south from large spur (on Meridian) heading into Sycamore Canyon. Comment
  CAS-BOT-BC24120  Arctostaphylos auriculata Alice Eastwood 1922-3-17 11083 Contra Costa Mt. Diablo Comment
  CDA9744  Arctostaphylos auriculata D. G. Kelch, D. A. Weinstein 1995-3-6 s.n. Contra Costa Rock City. Mt. Diablo. Comment
  JEPS38914  Arctostaphylos auriculata Mary L. Bowerman 1935-3-24 2751 Contra Costa w face Lime Ridge (between two cuts of the Cowell Cement Company); Mount Diablo Comment
  RSA70860  Arctostaphylos auriculata L. S. Rose 1934-2-28 34039 Contra Costa 8 miles NE Danville, S slope of Mt. Diablo. Comment
  UC1120857  Arctostaphylos auriculata H. A. Jensen 1938-10-27 455 Contra Costa head of Sycamore Creek Mt. Diablo Quadrangle 518 Comment
  UC1200411  Arctostaphylos auriculata Edward Lee 1936-1-12 1714 Contra Costa w-facing slope immediately s Nortonville Comment
  UC1200413  Arctostaphylos auriculata Edward Lee 1936-1-12 1713 Contra Costa w-facing slope immediately s Nortonville Comment
  UC526215  Arctostaphylos auriculata Lewis S. Rose 1934-2-28 34039 Contra Costa 8 mi ne Danville (s slope of mt., type locality); Mt. Diablo Comment
  UCD162927  Arctostaphylos auriculata D. O. Burge; K. Zhukovsky 2015-6-6 1747 Contra Costa Mount Diablo. 515 Comment
  CAS-BOT-BC23557  Arctostaphylos crustacea J. E. Adams 1934-3-9 623 Contra Costa Moraga Ridge Comment
  CAS-BOT-BC23593  Arctostaphylos crustacea Walter Knight 1980-3-6 3719 Contra Costa Redwood Regional Park, East Ridge Trail Comment
  CAS-BOT-BC23558  Arctostaphylos crustacea C. Hart Merriam 1919-11-2 s.n. Contra Costa Hill above Moraga Valley Comment
  UCSB26085  Arctostaphylos crustacea subsp. crustacea Lee, Edward 1935-12-28 Contra Costa Western end of Las Trampas Ridge; (T1S, R2W, Sect. 22, Concord Quadrangle) 426 Comment
  UCSB26113  Arctostaphylos crustacea subsp. crustacea Lee, Edward 1935-12-28 Contra Costa Western end of Las Trampas Ridge; (T1S, R2W, Sect. 22, Concord Quadrangle) 426 Comment
  OBI14772  Arctostaphylos glandulosa H. E. McMinn 1923-3-6 875 Contra Costa Sycamore Canon, Mt. Diablo Comment
  JEPS38918  Arctostaphylos glandulosa subsp. glandulosa Mary L. Bowerman 1932-3-20 1123 Contra Costa ne fork of canyon Mount Diablo, Sycamore Canyon (toward top of middle ridge) Comment
  SBBG5419  Arctostaphylos glandulosa subsp. mollis J. M. Tucker 1941-9-26 409 Contra Costa summit of Moraga Ridge 500 Comment
Read comments
Sep 13 2011
  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
  JEPS38916  Arctostaphylos glauca Mary L. Bowerman 1930-6-22 362 Contra Costa Mitchell Canyon Mount Diablo Comment
  RSA721734  Arctostaphylos glauca Barbara Ertter, Holy Forbes 1996-2-11 14548 Contra Costa North side Mount Diablo; Murchio Gap on Median Ridge Road. 732 Comment
  UC570417  Arctostaphylos glauca Chas. M. Belshaw 1936-10-26 2720 Contra Costa 3/4 mi ne North Peak; Mt. Diablo 609 Comment
  RSA0002606  Arctostaphylos laevigata Alice Eastwood 1922-3-17 11082 Contra Costa Mt. Diablo Comment
  SEINET12524593 Image available Arctostaphylos manzanita L. S. Rose 1934-1 34040 Contra Costa S. slope mt. diablo, 8 mi NE. Danville. Comment
  CAS-BOT-BC38880  Arctostaphylos manzanita subsp. laevigata H. E. McMinn 1923-3-6 876 c Contra Costa Mt. Diablo Comment
  CAS-BOT-BC38923  Arctostaphylos manzanita subsp. laevigata Alice Eastwood 1922-5-14 11312 Contra Costa Mt. Diablo Comment
  JEPS124461  Arctostaphylos manzanita subsp. laevigata Daniel Slakey with CNPS Volunteers 2015-6-29 137 Contra Costa Wall Point Rd, along a roughly 1 km stretch of road just west of Wall Point. Comment
  RSA164649  Arctostaphylos manzanita subsp. laevigata Percy C. Everett 1963-11-19 24499 Contra Costa Mt Diablo. 457 Comment
  UC549753  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-3-19 684 Contra Costa Mt. Diablo Comment
  UC549754  Arctostaphylos manzanita subsp. laevigata J. E. Adams 1934-3-19 682 Contra Costa Mount Diablo Comment
  UC692222  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1930-8-31 443 Contra Costa Dan Cook (Rock City) Canyon Mount Diablo Comment
  OBI14658  Arctostaphylos manzanita subsp. laevigata H. E. McMinn 1936-4-11 4418 Contra Costa Mt Diablo-head of Sycamore Canyon Comment
  UC2027944  Arctostaphylos manzanita subsp. laevigata Barbara Ertter 1997-9-7 15797 Contra Costa North side Mount Diablo, Donner Canyon, Middle Trail below Falls Trail junction. Comment
  CAS-BOT-BC24393  Arctostaphylos manzanita subsp. manzanita Walter Knight 1979-5-31 3376 Contra Costa Morgan Territory Regional Land Bank. Comment
  CAS-BOT-BC24400  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1933-3-25 1765 Contra Costa Mt. Diablo. Diablo Stock Farm (Stone Valley) Canyon, w. fork: toward top of s. face. Also shrubs on n. face of Pine 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
  CAS-BOT-BC42230  Arctostaphylos pallida H. E. McMinn 1925-1-1 s.n. Contra Costa Head of San Leandro Creek Comment
  CAS-BOT-BC42236  Arctostaphylos pallida Walter Knight; Irja Knight 1980-3-16 3714 Contra Costa Sobrante Ridge between Heavenly Ridge Land and Castro Ranch Road. Comment
  JEPS97533  Arctostaphylos pallida R. D. Stone 1981-1-31 335 Contra Costa Huckleberry Trail Oakland Hills, near Alameda-Contra-Costa county line (NE of intersection of Skyline Blvd. and Snake Rd.) Comment
  UC1120870  Arctostaphylos pallida R. W. Lundh 1933-1-12 188 Contra Costa 1/2 mi s Round Mt.; Concord Quadrangle 609 Comment
Read comments
Mar 14 2007
  UC723808  Arctostaphylos pallida Joseph Andorfer Ewan 1934-1-7 8162 Contra Costa above Oakland (head of creek, along ridge); San Leandro Creek Comment
  LA42216  Arctostaphylos pallida Lewis S. Rose; 1934-1-29 34010 Contra Costa Summit of Oakland Hills above Redwood Canyon Comment
  JEPS42608  Arctostaphylos tomentosa subsp. crustacea W. L. Jepson 1944-8-5 27546 Contra Costa Moraga Ridge Oakland Hills Comment
  JEPS46272  Arctostaphylos tomentosa subsp. crustacea W. L. Jepson 1943-6-19 20850 Contra Costa Moraga Ridge Comment
  JEPS98840  Arctostaphylos tomentosa subsp. crustacea Walter Knight, Irja Knight, James B. Roof, R. Gankin, R. Hildreth 1964-10-7 Contra Costa near Rock City; Mt. Diablo Comment
  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
  UC549443  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-2-15 608 Contra Costa Moraga Ridge Comment
  UC549444  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-2-15 606 Contra Costa Moraga Ridge Comment
  UC549476  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-19 681 Contra Costa Mount Diablo Comment
  RSA0029783  Arctostaphylos tomentosa subsp. crustacea Barbara Ertter, L. Vorobik 2000-1-9 16889 Contra Costa Las Trampas Regional Wilderness in East Bay Hills west of Danville. Comment
  RSA0029784  Arctostaphylos tomentosa subsp. rosei Barbara Ertter, L. Vorobik 2000-1-9 16888 Contra Costa Las Trampas Regional Wilderness in East Bay Hills west of Danville. Comment
  JEPS75532  Aristolochia californica P. F. Yorks 1974-2-10 109 Contra Costa n of Briones Reservoir (1.6 km s of Bear Creek Road on Hampton Road in Hampton Road Natural Reserve); Hampton Road Natural Reserve Comment
  UC6151  Aristolochia californica Harley P. Chandler 1901-3-22 866 Contra Costa Port Costa San Francisco Bay Region, Port Costa Comment
  POM87995  Aristolochia californica H. M. Hall 1900-3-23 s.n. Contra Costa Lauterwasser Creek Comment
  RSA417142  Arnica discoidea Anstruther Davidson 1917-06 s.n. Contra Costa Mt. Diablo Comment
  UC691351  Arnica discoidea Mary L. Bowerman 1931-5-16 849 Contra Costa summit Meridian Peak; Mount Diablo Comment
  CAS-BOT-BC90121  Artemisia biennis Evelina Cannon 1896-10-30 s.n. Contra Costa Giant Comment
  UCD129214  Artemisia californica Beecher Crampton 1972-11-21 8892 Contra Costa 2 miles east Port Costa. Comment
  UC1584697  Artemisia douglasiana Jerry Powell 1990-8-29 1591 Contra Costa Antioch National Wildlife Refuge 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
  UC169478  Asarum caudatum Katharine Brandegee Apr 1913 Contra Costa Eastport, Oakland Hills? Comment
  UC543763  Asarum caudatum Herbert L. Mason 1925-9-27 2236 Contra Costa San Leandro Canyon (Redwood Canyon); Oakland Hills Comment
  HSC24607  Asarum caudatum D. A. Shally 1965-4-18 41 Contra Costa Canyon, 1 mi. N of Canyon Store Comment
  SFV8432  Asarum caudatum A. Smith 1972-5-21 39 Contra Costa Roadside in Flicka Ridge area. Canyon. 91 Comment
  JEPS5091  Asclepias californica Mary L. Bowerman 1935-5-1 2944 Contra Costa 4.4 mi from entrance (West road); Mount Diablo 381 Comment
  UC691842  Asclepias californica Mary L. Bowerman 1931-5-21 877 Contra Costa Curry Canyon at Cave Point junction Mount Diablo 304 Comment
  UC2028979  Asclepias californica Barbara Ertter 2000-5-14 17019 Contra Costa Donner Basin on north side of Mount Diablo, upper end of Falls Trail near junction of Cardinet Oaks Road. Comment
  SEINET207365  Asclepias cordifolia Rimo Bacigalupi, G. Thomas Robbins 1956-5-11 5642 Contra Costa Franklin Canyon, 1/4 mile above (and northwest of) Glen Frazer Station on the Santa Fe Railway. 107 Comment
  UC1123545  Asclepias fascicularis H. S. Yates 1934-9-2 4067 Contra Costa 1 mi sw Mt. Diablo; Mt. Diablo Quadrangle Comment
  UCD80965  Asclepias fascicularis Chuck Hughes 2008-7-10 50 Contra Costa Marsh Creek at County Jail on Marsh Creek Road. 178 Comment
  UC1618203  Asparagus asparagoides Barbara Ertter 1991-1-21 9715 Contra Costa ne corner Point Isabel Regional Shoreline (El Cerrito, sw corner of Contra Costa County); El Cerrito Comment
  JEPS112507  Asparagus officinalis subsp. officinalis A. G. Murdock 2003-6-24 115 Contra Costa Mt. Wanda - Martinez Near parking lot at NE corner of Mt. Wanda 37 Comment
  UC1795104  Asphodelus fistulosus Barbara Ertter, Tony Morosco 2000-4-12 16959 Contra Costa Vasco Road 0.4 miles north of Tesla Road southeast of Livermore; roadside. Comment
  CDA15295  Aster lentus Amy Hiss 1998-10-14 s.n. Contra Costa Sacramento Delta; Marina Fishing Pier at northernmost limit of city of Antioch. Comment
  SEINET11851717  Aster subulatus var. ligulatus L. S. Rose 1938-1 38312 Contra Costa Byron 3 Comment
  UC83444  Astragalus didymocarpus Katharine Brandegee May 1886 Contra Costa Antioch Comment
  UCSB3011  Astragalus gambelianus Constance, Lincoln; Sharsmith, Carl; Reed, Howard 1940-4-27 Contra Costa Pine Canyon, base of Mount Diablo 304 Comment
  RSA29070  Astragalus gambelianus Lincoln Constance, Carl. W. Sharsmith 1940-4-27 2572 Contra Costa Pine Canyon, base of Mt Diablo 305 Comment
  SEINET12162892  Astragalus oxyphysus W. Knight, Knight, I. 1982-1 4498 Contra Costa Tilden Botanic Garden, Berkeley, ca originally collected nr Somersville Comment
  UC1112212  Astragalus tener var. tener Peter H. Raven with H. L. Mason, R. Ornduff, et al. 1957-4-4 10586 Contra Costa alkaline fields 3.0 mi s Byron; s of Byron Comment
  UC1199091  Astragalus tener var. tener J. P. Tracy 1900-3-24 611 Contra Costa Low ground near Stege. (region about San Francisco Bay); , near Stege. 3 Comment
  CAS-BOT-BC17456  Athysanus pusillus John Thomas Howell 1931-3-10 5754 Contra Costa East side of Mount Diablo 7 miles from Clayton on Livermore Road. Comment
  POM272526  Athysanus pusillus Lyman Benson 1935-3-16 6262 Contra Costa Mt. Diablo, Watershed: Walnut Creek; Mountain Range: Mt. Diablo. 915 Comment
  UC14319  Athysanus pusillus W. C. Blasdale 1896-2-28 Contra Costa Clayton Comment
  CAS-BOT-BC17459  Athysanus pusillus Mary L. Bowerman 1931-2-28 525 Contra Costa Mount Diablo. Rock City Ridge near Rock City. 518 Comment
  UCSB2239  Athysanus pusillus Kamb, Peter; Chisaki, Francia 1950-3-18 Contra Costa Saddle between North and South Peaks of Mount Diablo 883 Comment
  RSA452692  Atriplex argentea L. S. Rose 1932-10-2 32660 Contra Costa Byron. Comment
  UC217196  Atriplex argentea var. mohavensis H. M. Hall 1919-11-14 10972 Contra Costa Byron Byron (where road turns from highway to Springs Hog Wallows) Comment
  CAS-BOT-BC168542  Atriplex coronata Walter Knight; Irja Knight 1968-8-14 2417 Contra Costa On Contra Loma Drive, north side of road, Contra Loma Regional Park, near Antioch Comment
  CAS-BOT-BC168541  Atriplex coronata R. E. Frenkel 1964-7-10 648 Contra Costa On Balfour Road, 0.2 miles west of Bixler Road 6 Comment
  CDA9500  Atriplex depressa D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .227 Contra Costa Byron Airport. Comment
  CDA37400  Atriplex prostrata D. G. Kelch, Mike Perlmutter 2011-9-23 11 .763 Contra Costa Antioch. Dow Wetlands. Comment
  UC2042800  Atriplex prostrata Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10871 Contra Costa Dow Wetlands Preserve just W of Antioch marina. Comment
  UC1136330  Atriplex semibaccata H. S. Yates 1934-9-2 4064 Contra Costa 1 mi ne Danville; Mt. Diablo Quad., ne of Danville Comment
  SEINET5345887  Atriplex semibaccata H. Yates 1934-9-2 4064 Contra Costa 1 mile northeast of Danville Comment
  JEPS75537  Avena barbata P. F. Yorks 1976-4-28 144 Contra Costa on Hampton Rd 1.3 to 1.9 km s Bear Creek Road (n of Briones Reservoir); Hamton Road Natural Reserve Comment
  UC697189  Avena barbata Mary L. Bowerman 1933-5-8 2002 Contra Costa Fossil Ridge Mount Diablo (s face, not far from but out of sight of South Gate) 289 Comment
  UCD56220  Avena barbata A. A. Beetle 1942-3-22 2929 Contra Costa Brooks Island in San Francisco Bay. Comment
  UC1103340  Avena fatua J. P. Tracy 1900-3-24 631 Contra Costa fields near Stege; Region about San Francisco Bay 3 Comment
  UC53686  Avena fatua J. Burtt Davy 1900-5-24 6537 Contra Costa Pt. Richmond Comment
  UC606755  Avena fatua Edward Lee 1936-4-19 1996 Contra Costa Red Rock San Francisco Bay (island summit) Comment
  UC692398  Avena fatua Mary L. Bowerman 1933-4-26 1911 Contra Costa North Peak ridge e se peak (chaparral burn (1931) on s face); Mount Diablo 609 Comment
  CAS-BOT-BC145878  Avena fatua Mary L. Bowerman 1933-4-26 1911 Contra Costa Mount Diablo. North Peak ridge east-southeast of the peak. 609 Comment
  SEINET8718193 Image available Avena sativa Laura Zeller 1965-1 81 Contra Costa Just E of the University of California Botanical Garden. Comment
  UC697204  Baccharis glutinosa Mary L. Bowerman 1942-10-4 3852 Contra Costa Mount Diablo, Russelman Park Road 289 Comment
  SEINET3387286 Image available Baeria gracilis Lewis S. Rose 1932-3-15 3276 Contra Costa open fields, Byron Comment
  CDA23064  Barbarea orthoceras D. G. Kelch, D. A. Weinstein 2008-4-25 8 .083 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
  JEPS15610  Bellardia trixago R. Bacigalupi and G. Thomas Robbins 1955-5-4 4973 Contra Costa E edge, field along treat Lane Concord; Clayton Valley 60 Comment
  RSA60805  Bellardia trixago Carlotta C. Hall 1911-5-20 8835 Contra Costa Near Concord. 100 Comment
  SFV8665  Bellardia trixago M. J. Dekar 1967-5-20 35 Contra Costa 91 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
  UC2012948  Beta vulgaris Barbara Ertter 1990-10-24 9685 Contra Costa Martinez Regional Shoreline on Carquinez Strait. Comment
  CAS-BOT-BC102034  Bidens laevis James McMurphy 1908-10-18 s.n. Contra Costa Antioch 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
  UC456081  Bidens laevis I. J. Condit 1908-8-19 Contra Costa Antioch Comment
  NY31018  Blennosperma californicum L. S. Rose 1941-3-13 41035 Contra Costa 3 miles south of Byron 7.6 Comment
  NY31035  Blennosperma nanum R. C. F. Bacigalupi 1956-3-26 5526 Contra Costa In Deer Valley, along Deer Valley road 76.2 Comment
  UC1540459  Blennosperma nanum var. nanum Annetta Carter 1937-3-28 1225 Contra Costa 15 mi e, along Marsh Creek Road Concord 152 Comment
  CAS-BOT-BC127913  Blepharizonia laxa M. K. Curran 1883-10-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC127915  Blepharizonia laxa Brandegee s.n. Contra Costa Antioch Comment
  JEPS18817  Blepharizonia plumosa R. F. Hoover 1937-9-2 2711 Contra Costa 1 mi w Antioch Comment
  JEPS18823  Blepharizonia plumosa R. F. Hoover 1937-8-31 2704 Contra Costa Pittsburg Comment
  UCD77424  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
Read comments
Mar 14 2018
  CAS-BOT-BC100332  Blepharizonia plumosa H. M. Hall 1916-8-17 10275 Contra Costa Los Medanos, Suisan Bay Comment
  JEPS48643  Boechera breweri Elsa Kraeger 1926-3-7 Contra Costa e of Mt. Diablo summit; Mt. Diablo Comment
  UC10106 Image available Boechera breweri subsp. breweri W. H. Brewer 1862-5-14 1086 Contra Costa Summit of Mount Diablo Mount Diablo Comment
  UC691072  Boechera breweri subsp. breweri Mary L. Bowerman 1931-3-7 547 Contra Costa Meridian Peak summit Mount Diablo Comment
  CAS-BOT-BC15957  Boechera breweri subsp. breweri H. E. McMinn 1923-3-6 880 Contra Costa Near summit of Mount Diablo. 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-BC31331  Bolboschoenus maritimus John Thomas Howell; Gordon H. True 1972-6-29 48943 Contra Costa Low places along Byron Hot Springs Road, SE of Byron. Comment
  CAS-BOT-BC31332  Bolboschoenus maritimus Walter Knight; Harry Reeves 1979-8-25 3408 Contra Costa Man made marsh below dam near golf course. Contra Loma Regional Park near Antioch. 22 Comment
  SD134060  Bolboschoenus maritimus subsp. paludosus Walter Knight, Joanne Dean 1978-8-14 3161 Contra Costa Browns Island. Comment
  JEPS100010  Brassica rapa G. Smick 2003-2-20 GAS 49 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS111852  Brassica rapa A. G. Murdock 2004-3-19 217 Contra Costa Luzon Sycamore Ave. just east of Rodeo/Hercules where train crosses Highway 4 (Luzon). 60 Comment
  CAS-BOT-BC36723  Brassica rapa R. E. Frenkel 1963-8-22 273 Contra Costa On the lot in front of Market Plaza Center on Highway 21, Alamo. 79 Comment
  CDA31566  Briza maxima D. G. Kelch, Andrew G. Murdock 2004-4-26 4 .139 Contra Costa East Bay.; Point Pinole Comment
  JEPS127232  Briza minor Lowell Ahart, Josephine Guardino 2016-4-19 20789 Contra Costa 1.4 miles (air) northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Dam, approximately 25 miles (air) southwest to Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  JEPS7645  Brodiaea elegans subsp. elegans W. L. Jepson 1918-6-5 7599 Contra Costa Donner Canyon Mount Diablo, Donner Canyon 457 Comment
  CAS-BOT-BC484265  Brodiaea elegans subsp. elegans J. Bauer 1851-11-1 s.n Contra Costa Mt. Diablo (handwriting inlegible) Comment
  UC407032  Brodiaea terrestris subsp. terrestris Ira L. Wiggins 1930-4-17 4573 Contra Costa near Byron Comment
  CAS-BOT-BC486436  Brodiaea terrestris subsp. terrestris Ira L. Wiggins 1930-4-17 4573 Contra Costa near Byron Comment
  SBBG117257  Bromus B. Crampton 1960-3-29 5481 Contra Costa corner of Carlson and Lassen Boulevards, El Cerrito Comment
  UCD38557  Bromus berteroanus Beecher Crampton 1956-5-14 3415 Contra Costa 0.5 mile northwest of Martinez. Comment
  CHSC75136  Bromus carinatus Roger Thom 1987-4-21 3 Contra Costa 3300 block Johnson Rd. Lafayette. 152 Comment
  UCD58127  Bromus carinatus A. A. Beetle 1942-3-22 2931 Contra Costa Brooks Island in San Francisco Bay. Near Richmond. Comment
  UCD58227  Bromus carinatus P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UC677607  Bromus carinatus var. carinatus A. A. Beetle 1942-3-22 2931 Contra Costa near Richmond (San Francisco Bay, Brooks Island); San Francisco Bay, Brooks Island Comment
  UC692337  Bromus carinatus var. carinatus Mary L. Bowerman 1935-5-22 3038 Contra Costa w of Twin Peaks (Mount Diablo, Eagle Point Ridge); Mount Diablo, Eagle Point Ridge 304 Comment
  UCD36918  Bromus carinatus var. marginatus Beecher Crampton 1956-5-14 3393 Contra Costa 7 miles southwest of city of Antioch, just east of old mining town of Nortonville. Comment
  UC1948970  Bromus diandrus William J. Ferlatte, L. Maynard Moe 1970-4-27 1238 Contra Costa San Francisco Bay: Red Rock Island 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
  UC579854  Bromus hordeaceus Annetta Carter 1936-4-19 1117 Contra Costa San Francisco Bay, Red Rock Red Rock; San Francisco Bay, Red Rock Comment
  UC677560  Bromus hordeaceus P. F. Knowles 1941-1 8710 Contra Costa Briones Hills Comment
  UC697131  Bromus hordeaceus Mary L. Bowerman 1935-5-16 3007 Contra Costa behind Gabriel-Hinks (Mount Diablo, e side of North Peak); Mount Diablo, North Peak 289 Comment
  UC697215  Bromus hordeaceus Mary L. Bowerman 1931-4-18 732 Contra Costa Mount Diablo, Sycamore Canyon Sycamore Canyon; Mount Diablo, Sycamore Canyon 365 Comment
  UCD58674  Bromus hordeaceus L. S. Smith 1914-5-9 UCX 283 Contra Costa Mt. Diablo. West slope. Comment
  CAS-BOT-BC155469  Bromus hordeaceus Mary L. Bowerman 1931-5-13 839 Contra Costa Mount Diablo. Pine Canyon floor one mile above the sulphur springs. Comment
  CAS-BOT-BC155471  Bromus hordeaceus Mary L. Bowerman 1933-4-15 1870 Contra Costa Mount Diablo. Canyon south of Arroyo del Cerro. Rocky knoll 250 feet below spring. Comment
  CAS-BOT-BC155472  Bromus hordeaceus P. F. Knowles 1941-1-1 B 83 Contra Costa Briones Hills. Davis. Greenhouse. Comment
  SEINET10514555  Bromus hordeaceus Knowles 1941-1 KNOWLES 87 -10 Contra Costa Briones Hills, cultivated, greenhouse. Comment
  UC692367  Bromus laevipes Mary L. Bowerman 1935-5-16 3011 Contra Costa behind Gabriel-Hinks (e side of North Peak, Mount Diablo); Mount Diablo, North Peak 289 Comment
  UCD58920  Bromus laevipes P. B. Kennedy 1916-5-1 s.n. Contra Costa Pinehurst. Comment
  UCD59002  Bromus madritensis Beecher Crampton 1956-5-14 3395 Contra Costa Marsh Creek Road. 3.7 miles southeast of Clayton. Comment
  OBI70550  Bromus madritensis subsp. rubens D. G. Kelch, D. A. Weinstein 2008-4-25 8 .088 Contra Costa Alvarado Park (W end of Wilcat Cyn Park) on N facing hillsidewabove Hindu temple 122 Comment
  UC692345  Bromus madritensis subsp. rubens Mary L. Bowerman 1933-3-18 1751 Contra Costa Mount Diablo, Meridian Peak, (a little east of the meridian) Meridian Peak; Mount Diablo, Meridian Peak 548 Comment
  UC692348  Bromus madritensis subsp. rubens Mary L. Bowerman 1933-5-2 1944 Contra Costa below Pioneer Camp (Mount Diablo); Mount Diablo 762 Comment
  POM300681  Bromus rubens Mary L. Bowerman 1931-5-7 817 Contra Costa Mount Diablo; Northeast slope between summit and North Peak saddle. Comment
  CAS-BOT-BC161947  Bromus rubens Mary L. Bowerman 1933-3-18 1751 Contra Costa Mount Diablo below the chaparral belt, a little east of the meridian. 548 Comment
  CDA31607  Bromus stamineus D. G. Kelch, A. G. Murdock 2005-6-27 5 .395 Contra Costa Carquinez Strait; 6th Street at Lillian Street, Crockett. Comment
  UC1103346  Bromus trinii J. P. Tracy 1900-5-24 613 Contra Costa San Francisco Bay Region, Point Richmond Point Richmond; San Francisco Bay Region, Point Richmond 3 Comment
  UC606723  Bromus trinii Edward Lee 1936-4-19 1970 Contra Costa San Francisco Bay, Red Rock Red Rock; San Francisco Bay, Red Rock Comment
  JEPS111868  Cakile maritima D. G. Kelch 2004-7-9 04 .313 Contra Costa Rodeo Shoreline 0 Comment
  CAS-BOT-BC185033  Calamagrostis rubescens Virginia E. Long 1933-6-14 222 a Contra Costa Mount Diablo. Inner Black Hills. 563 Comment
  POM257267  Calamagrostis rubescens Virginia Long 1933-6-14 222 a Contra Costa Mt. Diablo. Inner Black Hills. Comment
  JEPS120267  Calamintha sylvatica Barbara Ertter with David Gowen 2012-6-9 21019 Contra Costa lower Vollmer Peak Trail paralleling South Drive, southeastern Tilden Park in Berkeley Hills Comment
  UC1980316  Calamintha sylvatica subsp. ascendens Barbara Ertter with David Gowen 2011-10-6 20918 Contra Costa Tilden Regional Park in hills east of Berkeley; lower Vollmer Peak Trail southeast of Big Spring picnic area Comment
  JEPS99499  Calandrinia breweri Mary Bowerman 1979-5-2 Contra Costa 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
  CDA932  Calandrinia ciliata D. G. Kelch 2005-2-13 05 .007-B Contra Costa Carquinez Strait; Upper Canada de Cierbo. Comment
  JEPS112033  Calandrinia ciliata D. G. Kelch 2003-3-21 03 .71 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  JEPS127039  Calandrinia ciliata Lowell Ahart, Josephine Guardino 2016-4-19 20777 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  UC1795791  Callitriche heterophylla var. bolanderi Barbara Ertter, Mary Bowerman et al. 1995-5-7 14034 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, in water of pond west of road in grassy flat. Comment
  UC1563731  Callitriche longipedunculata Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8144 Contra Costa West and adjacent Clifton Court Forebay, ca. 15 air miles SW od Stockton. SE Contra Costa County. Comment
  UC2027722  Callitriche marginata Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15512 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  UC2031422  Calochortus albus Barbara Ertter 1991-6-1 10086 Contra Costa Las Trampas Regional Wilderness in hills W of Danville, Elderberry Trail ca. 1/2 mi from trailhead Comment
  JEPS108220  Calochortus albus David Gowen 2005-4-30 275 Contra Costa Los Vaqueros Watershed. Hills above west side of valley at intersection of Round Valley and Morgan Territory Regional Preserves. Comment
  UC2028368  Calochortus argillosus Barbara Ertter 1998-6-20 16249 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Gypsy Ridge SW of Old Borges Ranch Comment
  UC2029142  Calochortus argillosus Barbara Ertter with Alan Prather 2003-6-7 18193 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, Valley View Trail at NE corner of park. Comment
  JEPS112509  Calochortus luteus A. G. Murdock 2003-6-2 77 Contra Costa Crockett - 5th St. Prairie 85 Comment
  CAS-BOT-BC132489  Calochortus pulchellus A. D. E. Elmer 1903-6-1 4631 Contra Costa Mount Diablo Comment
  CAS-BOT-BC132491  Calochortus pulchellus Mrs. T. A. McGlynn 1925-6-14 s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC132492  Calochortus pulchellus Volney Rattan 1880-1-1 s.n. Contra Costa Martinez Comment
  CAS-BOT-BC132506  Calochortus pulchellus John Thomas Howell 1940-4-21 15397 Contra Costa Pine Canyon, Mt. Diablo Comment
  HSC93902  Calochortus pulchellus C. Newberry 1994-4-30 7250 Contra Costa Mt. Diablo State Park, trail from Mitchell Canyon Parking to Donner Creek 900 Comment
  OBI21346  Calochortus pulchellus Robert F. Hoover 1968-5-16 11092 Contra Costa Upper Marsh Creek Comment
  POM170033  Calochortus pulchellus H. M. Hall 1910-5-30 10132 Contra Costa Mt. Diablo, north slope near Pine Canyon 366 Comment
  UC194919  Calochortus pulchellus H. M. Hall 1916-5-30 10132 Contra Costa near Pine Canyon; Mt. Diablo 365 Comment
  CAS-BOT-BC132534  Calochortus umbellatus John Thomas Howell 1933-5-14 11261 Contra Costa Hills east of St. Mary's College Comment
  RSA68634  Calochortus umbellatus Frank W. Peirson 1926-4-11 6639 Contra Costa Along summit of hills back of Albany Comment
  RSA757049  Calochortus umbellatus Rudolf Schmid 1997-4-8 1997 -2 Contra Costa Hillside Natural Area, El Cerrito; southwest of Kent Drive- Regency Ct. entrance, north side of junction of the two main fire roads 145 Comment
  UC197535  Calycadenia multiglandulosa H. M. Hall 1916-8-16 10274 Contra Costa 9 km s of Antioch; Horse Valley Comment
  UC691543  Calycadenia truncata Mary L. Bowerman 1933-8-26 2412 Contra Costa w of Lower Pine Spring; Mount Diablo Comment
  CAS-BOT-BC275399  Calycadenia truncata var. truncata L. R. Abrams 1910-10-8 4338 Contra Costa Mount Diablo 701 Comment
  UCD126157  Calystegia sepium Malcolm A. Nobs; S. Galen Smith 1949-7-8 941 Contra Costa Otto's Black Bass Resort, 4 miles N of Kingston. Comment
  UC1594199  Calystegia sepium subsp. binghamiae Jerry Powell 1991-8-15 1614 Contra Costa Antioch National Wildlife Refuge Comment
  UC1965404  Calystegia sepium subsp. binghamiae R. K. Brummitt and B. Ertter 2012-6-16 22059 Contra Costa Antioch, beside Plaza at water's edge at upper end of Suisun Bay Comment
  CAS-BOT-BC209525  Calystegia sepium subsp. limnophila Ira L. Wiggins 1954-9-5 13123 Contra Costa Levee along Bethel Island Comment
  CDA39895  Calystegia sepium subsp. limnophila T. C. Fuller 1964-11-6 12807 Contra Costa Northeast side of Bethel Island. 0 Comment
  RSA0033851  Calystegia subacaulis Barbara Ertter 1999-7-17 16760 Contra Costa El Cerrito, west side of Arlington Ave. in small triangle of land between Moeser Ln. and Terrace Dr. Comment
  UC1123589  Calystegia subacaulis C. M. Belshaw 1936-5-9 2076 Contra Costa 2.25 mi e Clayton; Mt. Diablo quad 381 Comment
  UC2029125  Calystegia subacaulis Barbara Ertter with David Gowen 2013-4-9 21308 Contra Costa Mount Diablo State Park southeast of Walnut Creek, ridge in bend of South Gate Road at Curry Point. Comment
  JEPS100014  Calystegia subacaulis subsp. subacaulis G. Smick 2003-5-6 GAS 170 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2028306  Calystegia subacaulis subsp. subacaulis Barbara Ertter, Susan D'Alcamo 1998-6-12 16199 Contra Costa Along Curry Canyon Road just east of Curry Point, south side of Mount Diablo. Comment
  UC198869  Camissonia campestris subsp. campestris Chesnut and Drew 1887-4-18 Contra Costa Antioch Comment
  RSA186796  Camissonia contorta Peter H. Raven 1963-3-29 18144 Contra Costa About 1 mile south of Oakley on State Highway 4 at junction of Brownstone Road Comment
  UC2028236  Camissonia contorta Barbara Ertter, Tony Morosco 1998-9-18 16438 Contra Costa North side Lime Ridge Open Space northwest of Mount Diablo. Comment
  UC2070452  Camissonia contorta Barbara Ertter with Dan Norris 2001-4-8 17599 Contra Costa Lime Ridge Open Space east of Walnut Creek. Comment
  JEPS107069  Camissonia intermedia Barbara Ertter, Chris Thayer 1995-4-25 13989 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Devil's Slide area of Sycamore Canyon, roadside through chaparral zone. 304 Comment
  RSA186560  Camissonia micrantha Peter H. Raven 1963-3-29 18143 Contra Costa About 1 mile south of Oakley on State Highway 4 at junction of Brownstone Road Comment
  SEINET12189053  Camissonia strigulosa L. S. Rose 1938-1 38223 Contra Costa Antioch 15 Comment
  UC635405  Camissoniopsis micrantha H. L. Mason 1929-3-31 5160 Contra Costa Antioch San Joaquin River (sand dike along river) Comment
  UC635408  Camissoniopsis micrantha H. L. Mason 1932-3-20 6850 Contra Costa sand hills near Antioch Comment
  CAS-BOT-BC266436  Campanula exigua Alice Eastwood 1915-5-30 4452 Contra Costa Mount Diablo Comment
  SEINET10461956  Campanula exigua Joseph W. Congdon 1896-5-30 Congdon s.n. Contra Costa Summit of Diablo Comment
  JEPS53375  Cardamine californica W. L. Jepson 1923-3-11 9850 Contra Costa half-way up s slope Mount Diablo; s slope Mount Diablo 685 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
  POM264460  Cardamine californica var. integrifolia Annetta Carter, H. K. Sharsmith 1940-3-17 1498 Contra Costa Near Stege railroad station 2 miles SE of Richmond. 8 Comment
  UC1606309  Cardamine hirsuta Barbara Ertter 1993-2-28 11461 Contra Costa edge Vollmer Peak Trail (Tilden Regional Park in Berkeley Hills, above steam trains); Tilden Regional Park in Berkeley Hills Comment
  UC2070560  Cardamine hirsuta Barbara Ertter 2002-5-16 17853 Contra Costa Richmond Field Station (UC-Berkeley). Comment
  POM300574  Cardamine oligosperma Mary L. Bowerman 1932-3-6 1100 Contra Costa Sycamore Canyon, east fork: Near trail. Comment
  UC2070559  Cardamine oligosperma var. oligosperma Barbara Ertter 2003-4-9 18140 Contra Costa Shell Ridge Open Space on west base of Mount Diablo, Indian Creek below Fossil Hill Trail crossing. Comment
  CDA40567  Cardaria pubescens V. Guise 2014-5-19 PDR# 070 P06223903 Contra Costa Rodeo; northside of Highway 4, 0.25 mile west of Carbon Way. 0 Comment
  POM351433  Carduus pycnocephalus B. C. Templeton 1962-6-10 s.n. Contra Costa Mt Diablo. Comment
  CAS-BOT-BC281736  Carduus pycnocephalus Paul F. Covel 1938-6-26 s.n. Contra Costa Las Trampas Canyon, behind St. Mary's Comment
  POM301032  Carduus pycnocephalus Mary L. Bowerman 1935-5-25 3079 Contra Costa North Road 2.4 miles from entrance (by sheperd's camp) 305 Comment
  CHSC116628  Carduus pycnocephalus subsp. pycnocephalus Lowell Ahart; Josephine Guardino 2016-4-19 20794 Contra Costa 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. Undesignated section of Canada de Los Vaqueros Land Grant. 160 Comment
  UC1555379  Carduus pycnocephalus subsp. pycnocephalus Jerry Powell 1988-5-18 1536 Contra Costa Pt. Molate, w Richmond Richmond, Pt. Molate Comment
  JEPS79443  Carduus tenuiflorus Edward Lee with Annetta Carter 1935-6-13 1431 Contra Costa s Richmond Panhandle Boulevard; Richmond Comment
  JEPS97625  Carduus tenuiflorus Annetta M. Carter, Florence Dickson 1939-5-28 1437 Contra Costa El Cerrito. 7 Comment
  UC691374  Carduus tenuiflorus Mary L. Bowerman 1932-5-6 1412 Contra Costa on floor of Mitchell Canyon; Mount Diablo, Mitchell Canyon 213 Comment
  CAS-BOT-BC281806  Carduus tenuiflorus Mary L. Bowerman 1934-6-9 2547 Contra Costa Mount Diablo. South Road, bend by Diablo Trail sign reading 4.4 miles to summit: Roadside 304 Comment
  CAS-BOT-BC17998  Carex aquatilis var. dives Brian Atwater 1979-5-6 BA- 198 Contra Costa Between Bethel Island and Holland Tract. Comment
  UC2029200  Carex densa Barbara Ertter 2003-2-8 18091 a Contra Costa Richmond Field Station (UC-Berkeley) Comment
  UC691964  Carex densa Mary L. Bowerman 1935-5-16 3001 Contra Costa Russelman Park road at Gregory Ranch junction Mount Diablo 289 Comment
  UC691963  Carex densa Mary L. Bowerman 1938-5-28 3646 Contra Costa South Road, by spring, paralleling streamlet Mount Diablo 640 Comment
  SEINET11263180  Carex globosa Barbara Ertter, A. T. Whittemore; Joanne Kerbavaz 2001-5-22 17650 Contra Costa South side of Mount Diablo, headwaters of West Branch Alamo Creek ESE of Knobcone Point, below powerline at end of Knobcone Point road.; 0 457 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
  UC1949083  Carex pendula Barbara Ertter with Jim Dunne, David Gowen, Lech Naumovich 2009-12-3 19797 Contra Costa at upper (south) end of San Pablo Dam Reservoir northwest of Orinda Comment
  UC1952822  Carex pendula Barbara Ertter with David Gowen 2010-11-17 20699 Contra Costa southeast part of Lime Ridge Open Space (City of Walnut Creek), lower end of east-facing drainage below Crystyl Ranch Trail ca 1/4 mi N of jct Paraiso Trail Comment
  UC2031466  Carex praegracilis Barbara Ertter with Brad Olson 1991-11-10 10886 Contra Costa Point San Pablo in extreme west of Richmond Comment
  SEINET11263976  Carex praegracilis Barbara Ertter, Dan Norris 2000-12-3 17553 Contra Costa South side of Mount Diablo, Devils Slide Trail above Sulfur Springs on nw fork of Sycamore Creek.; 0 427 Comment
  UCD77460  Carex rossii Robert E. Preston 1999-3-21 1204 Contra Costa Black Diamond Mines Regional Preserve, at top of rock outcrops along the w side of the Black Diamond Mines trail, just s of its jct with Manhattan Canyon trail cutoff. 365 Comment
  UC692205  Carex serratodens Mary L. Bowerman 1938-5-28 3647 Contra Costa South Road Mount Diablo 640 Comment
  CDA34479  Carex subbracteata D. G. Kelch 2006-3-18 6 .106 Contra Costa 2 km N-NW of Orinda Village. NW of corner of San Pablo Dam Rd & Bear Valley Rd. 0 Comment
  JEPS73301  Castilleja L. R. Heckard 1973-6-6 3422 Contra Costa ravine behind La Moine Park; Richmond 121 Comment
  CDA41348  Castilleja affinis D. G. Kelch 2005-6-14 5 .332 Contra Costa East Bay; San Pablo. North Alvarado Park, south of San Pablo Dam Rd. Comment
  UC765541  Castilleja affinis subsp. affinis R. F. Hoover 1938-5-4 3346 Contra Costa peak e of Tassajero Creek Comment
  UC2028183  Castilleja affinis subsp. affinis Barbara Ertter 1998-5-3 16068 Contra Costa SE end of Wall Point Road on southwest flank of Mount Diablo. Comment
  UC1779741  Castilleja ambigua subsp. ambigua D. Kelch 1999-4-15 Contra Costa George Wittell Marsh, Pt. Pinole Comment
  UC27154  Castilleja ambigua subsp. ambigua J. Burtt Davy 1900-3-24 6523 Contra Costa Pt. Richmond Comment
  JEPS74804  Castilleja attenuata L. R. Heckard, T. I. Chuang and R. Bacigalupi 1975-5-7 4012 Contra Costa ca 0.5 mi e Pinole (just e of Interstate 80, along main route of Santa Fe Railroad) Comment
  UC691576  Castilleja attenuata Mary L. Bowerman 1933-5-11 2084 Contra Costa w end Inner Black Hills; Mount Diablo Comment
  CDA41329  Castilleja densiflora subsp. densiflora D. G. Kelch 2003-4-3 3 .372 Contra Costa Carquinez Strait Region; Cummings Skyway. Comment
  JEPS19401  Castilleja densiflora subsp. densiflora G. Thomas Robbins 1937-4-17 134 Contra Costa near Point Richmond Comment
  CHSC21620  Castilleja exserta Willis Ball 1974-4-21 425 Contra Costa In area #7. Immediately to the w side of Contra Loma Blvd. ca. 400 yds s of the main boat ramp. Contra Loma Regional Park. 45 Comment
  JEPS65199  Castilleja exserta subsp. exserta L. R. Heckard 1971-4-15 2468 Contra Costa n of Mitchell Creek Park (n base of Mt. Diablo); Mt. Diablo 152 Comment
  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
  UC27243  Castilleja exserta subsp. exserta H. P. Chandler 1900-3-24 Contra Costa Briones Hills; Mount Diablo Region Comment
  UC1377744  Castilleja foliolosa W. J. Dress 1951-3-16 3054 Contra Costa about 1 mi e Berkeley (along Fish Ranch Road) Comment
  UC691594  Castilleja foliolosa Mary L. Bowerman 1931-4-18 730 Contra Costa basin of ne-fork Sycamore Canyon; Mount Diablo Comment
  UC691651  Castilleja foliolosa Mary L. Bowerman 1933-3-25 1762 Contra Costa Diablo Stock Farm (Stone Valley) Canyon (= Emmons Canyon) Stone Valley; Mount Diablo Comment
  RSA14423  Castilleja franciscana H. P. Bracelin 1933-6-10 768 Contra Costa Near crest of hills north of Berkeley above Kensington. Comment
  SEINET5543151  Castilleja parviflora H. S. Gentry 1931-1 51 Contra Costa Collected near Buckle Point, Mount Diablo. Comment
  SEINET3839756  Castilleja rubicundula subsp. lithospermoides Unknown 1996-4-26 Contra Costa Franklin Canyon Road near the junction with McEwan Road in grassland Comment
  CAS-BOT-BC41007  Caulanthus flavescens Alice Eastwood 1914-3-14 3813 Contra Costa Byron Springs. Comment
  UCD114675  Caulanthus lasiophyllus P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  CAS-BOT-BC48837  Ceanothus cuneatus Mary L. Bowerman 1932-9-3 1531 Contra Costa Muir Area: Burn (1931) Comment
  CAS-BOT-BC48838  Ceanothus cuneatus Mary L. Bowerman 1931-2-28 527 Contra Costa Near top of south road Comment
  UCD112079  Ceanothus cuneatus M. Wiesendanger 1926-6-1 1532 Contra Costa Mt. Diablo. Comment
  JEPS48863  Ceanothus cuneatus var. cuneatus Elsa Kraeger 1926-3-7 Contra Costa e side Mt. Diablo Comment
  UC1071118  Ceanothus cuneatus var. cuneatus R. W. Lundh 1932-8-25 144 Contra Costa Mt. Diablo. 1 mi s and 1/2 mi w of; Mt. Diablo quad. 731 Comment
  UCSB22769  Ceanothus cuneatus var. ramulosus Jones, D. 1967-3-25 Contra Costa Along nature trail at park headquarters, Mt. Diablo State Park. 475 Comment
  CAS-BOT-BC51497  Ceanothus oliganthus var. sorediatus H. E. McMinn 1922-5-30 108 Contra Costa Pinehurst Comment
  UC692587  Ceanothus oliganthus var. sorediatus Mary L. Bowerman 1931-4-10 746 Contra Costa below Deer Flat (Mitchell Canyon.); Mount Diablo Comment
  HSC5243  Centaurea melitensis Greg Bos 1963-4-14 77 Contra Costa Bayshore freeway at Central Ave.; Richmond Flat Area 1 Comment
  CAS-BOT-BC284465  Centaurea solstitialis E. M. Zeile 1921-10-1 41 Contra Costa Rodeo Comment
  JEPS111969  Centaurium davyi Christopher Thayer 1995-6-5 Contra Costa West of Pinole Peak 274 Comment
  JEPS111970  Centaurium davyi D. G. Kelch 2004-4-26 04 .149 Contra Costa Point Pinole Pt. Pinole 1 Comment
  UC2028240  Centaurium muehlenbergii Barbara Ertter, Tony Morosco 1998-9-18 16424 Contra Costa Lime Ridge Open Space northwest of Mount Diablo. Comment
  CDA35663  Centaurium tenuiflorum Vince Guise 2011-8-2 PDR# 1649695 Contra Costa San Ramon; 100 feet north of north end of Claremont Crest Way. 0 Comment
  UC2042753  Centaurium tenuiflorum Barbara Ertter with Brad Olson and Lynne Hosley 1993-11-14 12320 Contra Costa Skyline Trail in East Bay Hills west of Orinda, above Caldecott Tunnel between Fish Ranch Road and Roundtop. Comment
  UCR260816  Centranthus ruber D. Finley 1998-5-25 4- 01 Contra Costa San Francisco Bay Region, Highway 24 east, 1/8 road mile east of the Caldecott Tunnel, west side of freeway 305 Comment
  UCD137523  Centranthus ruber S. P. Lynch 1974-4-24 499 Contra Costa along Clayton Road east of Conrad, Mt. Diablo. 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-BC288548  Centromadia fitchii Mary L. Bowerman 1936-9-17 3548 Contra Costa Mount Diablo. North Rd 2.5 miles from North Gate: at roadside, slightly lower down, extending down the bank into grassland 243 Comment
  CAS-BOT-BC288549  Centromadia fitchii Rimo Bacigalupi 1922-9-24 s.n. Contra Costa Along road between Clayton Mitchell Comment
  UC2028098  Centromadia fitchii Barbara Ertter, Chris Thayer 1996-10-25 15375 Contra Costa West side of Mount Diablo, North Gate Road 0.8 road miles NW of Burma Road, spring area with abundant Distichlis, on tributary of Little Pine Creek. Comment
  UC2028246  Centromadia fitchii Barbara Ertter, Tony Morosco 1998-9-18 16416 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, Valley Vista Road entrance. Comment
  UC2029029  Centromadia fitchii Barbara Ertter 2002-8-24 18019 Contra Costa Dunn Creek south of Mount Diablo Mine property on NE base of Mount Diablo. Comment
  JEPS118743  Centromadia parryi subsp. congdonii Sarah Lynch 2012-8-1 s. n. Contra Costa Tassajara Valley (south of Danville); west of Camino Tasajara Road and south of Johnston Road Comment
  UC523550  Centromadia parryi subsp. congdonii David D. Keck 1933-11-2 2610 Contra Costa Crow Creek Canyon Road 1/2 mi from turnoff San Ramon Comment
  CAS-BOT-BC288881  Centromadia parryi subsp. congdonii David D. Keck 1933-11-2 2611 Contra Costa 2.7 miles N of Walnut Creek Comment
  CAS-BOT-BC288882  Centromadia parryi subsp. congdonii H. M. Hall 1916-10-14 10283 Contra Costa Pacheco Comment
  CDA29244  Centromadia pungens D. G. Kelch 2005-11-23 06 .507B Contra Costa East Bay.; Point Molate. Comment
  CAS-BOT-BC279193  Centromadia pungens subsp. pungens R. F. Hoover 1967-4-28 10515 Contra Costa Byron Hot Springs Comment
  UC1563855  Centromadia pungens subsp. pungens Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8138 Contra Costa alkali sink w and adjacen to Clifton Court Forebay (ca 15 air mi sw of Stockton) 0 Comment
  CAS-BOT-BC279180  Centromadia pungens subsp. pungens John Thomas Howell 1929-9-21 4395 Contra Costa Marsh Creek Road 3.5 miles sw. of Brentwood Comment
  CAS-BOT-BC279195  Centromadia pungens subsp. pungens D. E. Breedlove 1969-10-18 16706 Contra Costa On Deer Hill Road near the junction with Happy Valley Road, Lafayette Comment
  RSA0027414  Cerastium fontanum subsp. vulgare Barbara Ertter, Rich Rabeler, Tony Morosco 1997-6-10 15672 Contra Costa Martinez Regional Shoreline, south edge of Carquinez Strait. Comment
  CDA19002  Ceratophyllum demersum R. Gage 2000-10-18 PDR 1198719 B Contra Costa Clifton Ct. Forebay, NW of Tracy, at the head of State Water project. 0 Comment
  CAS-BOT-BC137010  Cercocarpus betuloides var. betuloides Mary L. Bowerman 1930-6-14 325 Contra Costa Mount Diablo. Summit area Comment
  UC691100  Cercocarpus betuloides var. betuloides Mary L. Bowerman 1931-6-4 923 Contra Costa Summit of Meridian Peak, Mount Diablo Meridian Peak; Mount Diablo, Meridian Peak Comment
  POM54137  Chaenactis glabriuscula var. megacephala C. F. Baker 1903-4-27 2940 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
  JEPS111947  Chamaesyce serpens A. G. Murdock 2004-5-28 306 -B Contra Costa Luzon 60 Comment
  JEPS111956  Chamaesyce serpens D. G. Kelch 2004-9-2 04 .343 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Martinez (Ozol) 22 Comment
  UC2062612  Chamaesyce serpens Barbara Ertter with John Ginochio 2002-6-1 17945 a Contra Costa Ginochio house on south side of North Gate Road on NW base of Mount Diablo, lower Arroyo del Cerro. Comment
  CAS-BOT-BC70278  Cheilanthes intertexta John Thomas Howell 1955-3-6 30145 Contra Costa between South & North peaks of Mt. Diablo Comment
  UC630416  Chenopodium berlandieri Paule Guiget and Annetta Carter 1939-8-13 1453 Contra Costa Treat Ave. se Concord 53 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
  CAS-BOT-BC497665  Chlorogalum pomeridianum Alice Eastwood 1927-5-19 11434 Contra Costa Byron Springs Comment
  UC1004357  Chlorogalum pomeridianum var. pomeridianum M. S. Cave 1949-6-26 4901 Contra Costa Arlington Avenue n Mira Vista entrance (hillside); Kensington Comment
  UC692213  Chorizanthe membranacea Mary L. Bowerman 1938-5-28 3636 Contra Costa North Road 4.7 mi from North Gate (Mount Diablo); Mount Diablo 411 Comment
  UC849193  Chorizanthe membranacea Lewis S. Rose 1941-5-15 41230 Contra Costa w slope Mount Diablo; w slope Mount Diablo 396 Comment
  UC2028983  Chorizanthe membranacea Barbara Ertter 2000-5-14 17015 Contra Costa Donner Basin on north side of Mount Diablo, Falls Trail north of Wild Oat Canyon. Comment
  UC85937  Chorizanthe uniaristata Mrs. K. Brandegee Contra Costa Mount Diablo Comment
  CAS-BOT-BC30109  Chrysolepis chrysophylla var. minor John Thomas Howell 1925-9-19 1442 Contra Costa Moraga Ridge, Oakland Hills Comment
  UC72145  Cicendia quadrangularis Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  CHSC75054  Cichorium intybus Roger Thom 1987-5-26 16 Contra Costa 1900 block of Geary Rd. Walnut Creek 30 Comment
  RSA770014  Cirsium occidentale David J. Keil, Barbara Ertter, et al. 2000-6-18 28815 A Contra Costa Mount Diablo State Park. Lower part of Jumper Trail above Laurel Dell picnic area 915 Comment
  UC2031459  Cirsium occidentale var. californicum Barbara Ertter with David Gowen, Mike Park, Chris Thayer et al. 2014-4-12 21710 Contra Costa North side of Rhine Canyon Road, Ginochio property on east side of Mount Diablo Comment
  JEPS59176  Cirsium occidentale var. californicum W. L. Jepson 1921-5-22 9213 Contra Costa common midway on mountain Mt. Diablo Comment
  UC691390  Cirsium occidentale var. venustum Mary L. Bowerman 1930-6-10 295 Contra Costa near Mineral (on North Road); Mount Diablo 396 Comment
  UC30830  Cirsium occidentale var. venustum W. G. Klee Contra Costa Comment
  UC1795899  Clarkia Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14638 Contra Costa Little Pine Creek at northwest foot of Mt. Diablo, along trail connecting North Gate Road to Castle Rock Road, Diablo Foothills Regional Park; grassy hillside. Comment
  CAS-BOT-BC162564  Clarkia affinis Mary L. Bowerman 1935-5-22 3041 Contra Costa Eagle Point Ridge, canyon at north end which heads into saddle west of Twin Peaks - Mount Diablo 304 Comment
  CAS-BOT-BC162567  Clarkia affinis Alice Eastwood 1915-5-30 s.n. Contra Costa Mt. Diablo Comment
  UC112975  Clarkia affinis Katharine Brandegee 1907-6-16 Contra Costa hills between Antioch and Marsh Creek Comment
  UC1018328  Clarkia affinis H. Lewis and C. Epling 1947-5-2 196 Contra Costa 1 mi w Curry Creek Park Road (Marsh Creek Road) Comment
  UC2028167  Clarkia affinis Barbara Ertter 1998-5-3 16077 Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, near Wall Point. Comment
  JEPS43823  Clarkia biloba C. L. Hitchcock 1928-6-5 13 Contra Costa 1 1/2 mi from Port Costa (between Port Costa and Martinez) 40 Comment
  JEPS111555  Clarkia concinna subsp. concinna A. G. Murdock 2003-6-2 80 Contra Costa Franklin Canyon - McHarry Ranch Rd. East side of road on bank above creek across from fire road gate. 137 Comment
  UC634661  Clarkia concinna subsp. concinna David R. Goddard 1927-5-23 170 Contra Costa San Pablo Creek Canyon Comment
  UC1819002  Clarkia gracilis subsp. gracilis Barbara Ertter, Tom Delendick 1996-5-2 14612 Contra Costa Mount Diablo State Park, Deer Flat Road north of Juniper Camp, at cut through open live oak forest, northwest-facing slope. 853 Comment
  UC2029003  Clarkia purpurea Barbara Ertter 2000-5-14 16996 Contra Costa Lower Donner Canyon on north side of Mount Diablo, on Hetherington Trail. Comment
  RSA60760  Clarkia purpurea subsp. purpurea Edward L. Greene 1889-05 s.n. Contra Costa Martinez Comment
  CAS-BOT-BC163675  Clarkia purpurea subsp. quadrivulnera Rimo Bacigalupi 1926-4-30 1358 Contra Costa Mt. Diablo 548 Comment
  UC1122432  Clarkia purpurea subsp. quadrivulnera C. M. Belshaw 1936-5-13 2112 Contra Costa 3.7 mi ene Tassajero (plot 31); Mt. Diablo Quadrangle Comment
  CAS-BOT-BC163673  Clarkia purpurea subsp. quadrivulnera L. R. Abrams 1921-5-26 8048 Contra Costa At spring 4 1/2 mi from Summit, Mt. Diablo Comment
  POM301855  Clarkia purpurea subsp. quadrivulnera Mary L. Bowerman 1933-5-18 2123 Contra Costa Mount Diablo: Blackberry Spring Comment
  UC1818957  Clarkia purpurea subsp. quadrivulnera Barbara Ertter, Kristin Ertter 1995-7-11 14478 Contra Costa Pine Creek on West side of Mt. Diablo southwest of Walnut Creek; partial shade of oak forest, road along Pine Cr. in Diablo Foothills Regional Park 152 Comment
  UC692486  Clarkia purpurea subsp. viminea Mary L. Bowerman 1935-5-1 2928 Contra Costa 2 mi from North Gate (North Road); Mount Diablo 182 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
  POM32263  Clarkia rubicunda subsp. blasdalei Katherine Brandegee 1908-7-3 s.n. Contra Costa Point Isabel, north side Comment
  CAS-BOT-BC165452  Clarkia unguiculata Alice Eastwood 1922-3-17 11078 Contra Costa Mt. Diablo Comment
  POM181154  Clarkia unguiculata J. T. Howell 1931-5-12 6481 Contra Costa Mt. Diablo. Comment
  POM262830  Clarkia unguiculata Herbert McLean Evans 1923-05 s.n. Contra Costa Mount Diablo Comment
  UC765869  Clarkia unguiculata R. F. Hoover 1937-5-14 2110 Contra Costa Antioch sand-dunes Comment
  CAS-BOT-BC165451  Clarkia unguiculata Volney Rattan 1886-6-15 s.n. Contra Costa Unspecified Comment
  CAS-BOT-BC439164  Claytonia exigua subsp. exigua Mary L. Bowerman 1932-3-12 1110 Contra Costa Mount Diablo. Alamo Canyon 350 Comment
  JEPS68968  Claytonia exigua subsp. exigua Edward Lee 1935-3-10 1302 Contra Costa Nortonville , Kirker Creek (s watershed Kirker Creek) 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
  UC7852  Claytonia exigua subsp. exigua Brewer 1056 Contra Costa Mt. Diablo Comment
  UC692661  Claytonia exigua subsp. glauca Mary L. Bowerman 1932-3-6 1098 Contra Costa near Black Hawk Ridge saddle; Mount Diablo Comment
  CAS-BOT-BC439438  Claytonia parviflora subsp. parviflora Alice Eastwood 1915-5-30 4515 Contra Costa Mt. Diablo 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
  UC1745431  Claytonia parviflora subsp. parviflora Annetta M. Carter, Leo Bowerman 1935-6-1 872 Contra Costa Mt. Diablo. N-facing slope of main ridge running W from peak. 975 Comment
  UC1948961  Claytonia parviflora subsp. parviflora William J. Ferlatte, L. Maynard Moe 1970-4-27 1232 Contra Costa San Francisco Bay: Red Rock Island Comment
  CAS-BOT-BC439439  Claytonia parviflora subsp. parviflora Alice Eastwood 1915-5-3 s.n. Contra Costa Mt. Diablo Comment
  RSA469285  Claytonia perfoliata H. de Forest 1930-4-6 s.n. Contra Costa [Unspecified] Comment
  JEPS112035  Claytonia perfoliata subsp. perfoliata D. G. Kelch 2003-3-21 03 .54 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  SEINET194968 Image available Claytonia perfoliata subsp. perfoliata A. A. Heller 1908-4-17 8909 Contra Costa Tracey. 10 Comment
  UC1745809  Claytonia perfoliata subsp. perfoliata Annetta M. Carter, Edward Lee 1935-3-29 756 Contra Costa Marsh Creek Rd., 1.2 mi. E of Clayton. Comment
  UC692539  Claytonia perfoliata subsp. perfoliata Mary L. Bowerman 1932-3-12 1111 Contra Costa Alamo Canyon; Mount Diablo 350 Comment
  UC7914  Claytonia perfoliata subsp. perfoliata J. Burtt Davy 1895-4-7 983 Contra Costa Antioch Comment
  UC545784  Clematis lasiantha Annetta M. Carter 1935-6-1 879 Contra Costa n. slope of main peak Mt. Diablo (w. of Eagle Point) 1005 Comment
  UC635101  Clematis lasiantha A. E. Borell 1928-4-8 90 Contra Costa Mt. Diablo Comment
  UC692071  Clematis lasiantha Mary L. Bowerman 1930-6-7 272 Contra Costa Meridian Peak summit Mt. Diablo Comment
  UC692085  Clematis lasiantha Mary L. Bowerman 1930-6-7 272 Contra Costa summit Mt. Diablo Comment
  UC692099  Clematis lasiantha Mary L. Bowerman 1931-5-16 856 Contra Costa Meridian Peak summit Mt. Diablo Comment
  JEPS120287  Clinopodium vulgare Barbara Ertter with David Gowen 2012-9-20 21018 Contra Costa lower Vollmer Peak Trail paralleling South Drive, southeastern Tilden Park in Berkeley Hills, ca. midway along trail, wide spot in shade of bay and pine (same location as 20919) 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
  UC691582  Collinsia heterophylla Mary L. Bowerman 1930-6-5 245 Contra Costa West Road 5.8 mi from entrance, Mount Diablo Mount Diablo; , West Road 457 Comment
  UC691657  Collinsia heterophylla Mary L. Bowerman 1932-5-6 1411 Contra Costa Mount Diablo, floor of Mitchell Canyon Mitchell Canyon; Mount Diablo, Mitchell Canyon 182 Comment
  UCSB39461  Collinsia heterophylla var. heterophylla 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
  JEPS108350  Collinsia sparsiflora David Gowen, Mike Parks 2005-3-30 219 Contra Costa Mt. Diablo State Park. East facing slope at base of Alamo Canyon. 350 Comment
  JEPS108353  Collinsia sparsiflora David Gowen 2005-3-31 221 Contra Costa Sibley Regional Preserve. East facing slope just east of Park boundary near dirt road that heads northeast. Comment
  JEPS3891  Collinsia sparsiflora var. collina Lauramay Tinsley 1929-3-27 Contra Costa Mount Diablo Comment
  JEPS6336  Collinsia sparsiflora var. collina Mary L. Bowerman 1933-4-9 1836 Contra Costa w fork Donner Canyon Mount Diablo (Mount Diablo); Donner Canyon 243 Comment
  RSA32344  Collinsia sparsiflora var. collina Alice Eastwood 1914-5-30 4529 Contra Costa Mt. Diablo. Comment
  UC400156  Collinsia sparsiflora var. collina Ynes Mexia 1929-4-21 2376 Contra Costa Moraga Valley Comment
  UC672470  Collinsia sparsiflora var. collina Herbert L. Mason 1929-3-15 5051 Contra Costa Nortonville Comment
  JEPS6312  Collinsia sparsiflora var. sparsiflora W. L. Jepson 1922-4-16 9599 Contra Costa San Pablo Valley Comment
  UC1612419  Collinsia tinctoria R. Raiche 1982-6-19 20460 Contra Costa Mt. Diablo Comment
  UC26660  Collinsia tinctoria Edw. L. Greene Jun 1892 Contra Costa Mount Diablo Comment
  UC2028981  Collinsia tinctoria Barbara Ertter 2000-5-14 17017 Contra Costa Donner Basin on north side of Mount Diablo, upper end of Falls Trail near junction of Cardinet Oaks Road. Comment
  UC699678  Collomia heterophylla Basil Bowers 1941-4-12 372 Contra Costa near east end of Moraga Ridge Comment
  UC691883  Conium maculatum Mary L. Bowerman 1935-6-8 3121 Contra Costa Mt. Diablo, Muir Area Comment
  UC691884  Conium maculatum Mary L. Bowerman 1935-6-8 3121 Contra Costa Mount Diablo, Muir Area Mount Diablo; , Muir Area Comment
  CDA3510  Consolida ambigua O. Moss 1970-6-3 Contra Costa Empire Mine Road, Brentwood. 0 Comment
  JEPS100237  Convolvulus simulans Dean W. Taylor 1990-4-23 10635 Contra Costa ca. 2 miles due W of Byron Hot Springs 30 Comment
  UC2028015  Conyza canadensis Barbara Ertter 1997-9-14 15820 Contra Costa Southwest side of Mount Diablo, Wall Point Road on open sandstone ridge northwest of Wall Point. Comment
  UC1050105  Coprosma areolata N. Floy Bracelin 1942-3-22 1985 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS95193  Cordylanthus mollis subsp. mollis Jake Ruygt 1993-9-3 Contra Costa w of Hastings Slough (Concord Naval Weapons Station) Comment
  SEINET12269039  Cordylanthus pilosus M. T. Doutt 1930-1 88 Contra Costa Marsh Creek Comment
  JEPS87949  Cordylanthus pilosus subsp. pilosus Barbara Ertter, CNPS 1990-8-19 9623 Contra Costa above Cutter Cove (e side of s end of Briones Reservoir, n of Orinda, along Bear Creek Trail on EBMUD land); Briones Reservoir, Bear Creek Trail 213 Comment
  RSA136731  Cordylanthus pilosus subsp. pilosus J. T. Howell 1955-8-24 30902 Contra Costa Near Diablo County Club, south base of Mt. Diablo. Comment
  CAS-BOT-BC287145  Coreopsis stillmanii Brandegee No date on label s.n. Contra Costa Mt Diablo Comment
  POM181454  Cornus californica I. L. Wiggins 1930-4-18 4593 Contra Costa East end of Jersey Island. Comment
  UC2028523  Cortaderia jubata Barbara Ertter 1997-9-14 15814 Contra Costa Southwest side of Mount Diablo, Secret Trail at head of Pine Canyon. Comment
  UC2028509  Cortaderia selloana Barbara Ertter with Tony Morosco 1998-9-18 16430 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, north quarry area [subsequently developed] Comment
  UC2028107  Cotoneaster pannosus Barbara Ertter with Christopher Baysdorfer 1998-5-10 16117 Contra Costa Lime Ridge Open Space northwest of Mount Diablo. Comment
  RSA721748  Cotula australis Barbara Ertter, Mary Bowerman, et al. 1995-5-7 14055 Contra Costa Three-Springs on NE side of Mt. Diablo SE of Clayton, road behind houses traversing north-facing slope Comment
  HSC5425  Cotula coronopifolia Greg Bos 1963-4-14 75 Contra Costa Bayshore Freeway at Central Ave., Richmond 0 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
  CAS-BOT-BC427577  Crassula aquatica Peter H. Raven; H. L. Mason; R. Ornduff; et al 1957-4-4 10577 Contra Costa 3.0 miles s. of Byron Comment
  UC2028453  Crassula aquatica Barbara Ertter with Joanne Kerbavaz 2000-8-20 17506 Contra Costa Hidden Pond on south side of Mount Diablo Comment
  JEPS68960  Crassula connata Edward Lee 1935-3-10 1292 Contra Costa Antioch Sand Dunes e. of Antioch; Antioch Sand Dunes Comment
  RSA0068476  Crassula connata Katie Gallagher, Nick Jensen 2014-4-26 202 Contra Costa Las Trampas Regional Wilderness. 487 Comment
  UC2028043  Crassula tillaea Barbara Ertter 1998-3-1 15926 Contra Costa Diablo Foothills Regional Park, Ridge Trail on ridge east of Old Borges Ranch. Comment
  CDA19637  Crepis bursifolia Doreen Smith, Wilma Follette 2003-10-25 s.n. Contra Costa San Francisco Bay Area; Briones Park. 0 Comment
  JEPS120274  Crepis bursifolia Barbara Ertter with David Gowen 2012-6-9 21027 Contra Costa south junction of Big Springs Trail with Seaview Trail, southeastern Tilden Park in Berkeley Hills Comment
  RSA0026175  Crepis bursifolia Barbara Ertter, David Gowen 2012-6-9 21027 Contra Costa South junction of Big Springs Trail with Seaview Trail, southeastern Tilden Park in Berkeley Hills. Comment
  JEPS78617  Cressa truxillensis Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3289 Contra Costa Brown Island, Sandy Knoll Comment
  UC2028424  Crocosmia X crocosmiiflora Barbara Ertter 1996-9-19 15291 Contra Costa Cerrito Creek at base of Albany Hill, just west of San Pablo Avenue Comment
  UC765095  Croton californicus R. F. Hoover 1937-5-14 2114 Contra Costa Antioch sand-dunes Comment
  RSA480683  Croton californicus E. E. Stanford 1930-5-30 1533 Contra Costa Near Knightsen. Comment
  RSA498985  Croton californicus E. E. Stanford 1930-5-30 1533 Contra Costa Near Knightsen. Comment
  OBI22928  Croton setiger Janet Harford 1971-11-6 2 Contra Costa Mount Diablo, S side 610 Comment
  JEPS99549  Crypsis schoenoides Mary Bowerman 1975-9-14 Contra Costa Mount Diablo, Hidden Pond. Comment
  RSA720790  Crypsis schoenoides Barbara Ertter, Mary L. Bowerman, Lisa Schultheis, Kevin Hintsa 1995-10-22 14532 Contra Costa Three Spring Trail on northeast side of Mt. Diablo, south of crest of Marsh Creek Rd. Comment
  UCD59835  Crypsis schoenoides G. F. Hrusa; D. Crowe, R. York 1998-7-17 14726 Contra Costa Sacramento-San Joaquin River Delta. East side of Antioch-Pittsburg Hwy at east end of Dow Chemical property. 12 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
  RSA0028852  Crypsis vaginiflora Barbara Ertter, Richard K. Rabeler, Tony Morosco 1997-6-10 15659 Contra Costa North base of Mount Diablo, pond on Three Springs Road. Comment
  UC1950064  Crypsis vaginiflora Barbara Ertter 1989-9-30 8865 Contra Costa Tilden Regional Park E of El Cerrito, East Bay Skyline Nat'l Recreation Trail (=Nimitz Way), pond 1 1/4 mi NW of Inspiration Point. Comment
  UC2028311  Cryptantha decipiens Barbara Ertter, Susan D'Alcamo 1998-6-12 16165 Contra Costa North Peak Trail from Devil's Elbow on SE side of Mount Diablo summit. Comment
  UC659427  Cryptantha flaccida Lincoln Constance, Carl W. Sharsmith with Howard S. Reed 1940-4-27 2573 Contra Costa Pine Canyon, base of Mount Diablo Mount Diablo 304 Comment
  UC691396  Cryptantha flaccida Mary L. Bowerman 1931-4-4 659 Contra Costa 4.5 mi from West road (= North Rd) entrance; Mount Diablo 396 Comment
  UC691402  Cryptantha flaccida Mary L. Bowerman 1933-5-2 1955 Contra Costa below Pioneer Camp; Mount Diablo 762 Comment
  UC78683  Cryptantha microstachys Mrs. K. Brandegee May 1890 Contra Costa Brentwood Comment
  UC691346  Cryptantha muricata Mary L. Bowerman 1933-5-2 1938 Contra Costa below Pioneer Camp; Mount Diablo 762 Comment
  JEPS67634  Cryptantha nevadensis Mary L. Bowerman 1932-3-27 1143 Contra Costa at base of Mitchell Rock Mount Diablo, Mitchell Rock Comment
  RSA721362  Cryptantha torreyana var. pumila Barbara Ertter, Mary L. Bowerman 1994-6-19 12846 a Contra Costa Mt. Diablo State Park east of Walnut Creek; lower Summit Parking lot, opening on north side. 1128 Comment
  UC1948929  Cupressus macrocarpa William J. Ferlatte, L. Maynard Moe 1970-4-27 1259 Contra Costa San Francisco Bay: Red Rock Island Comment
  RSA216774  Cuscuta californica Robert F. Hoover 1969-8-25 11565 Contra Costa Raymond Road and Ames Street, Livermore Valley Comment
  CDA5579  Cuscuta epithymum R. DeBoer 1966-9-15 Contra Costa M. V. Nursery, foot of Market Avenue, Richmond. 0 Comment
  CDA33660  Cuscuta japonica Yost/Fonseca 2008-8-7 PDR# 14544449 Contra Costa Richmond; 101 Marcus Ave. 0 Comment
  CDA31062  Cuscuta subinclusa D. G. Kelch 2006-8-11 6 .374 Contra Costa Carquinez Strait.; Top of Edward s Canyon. Crockett. Comment
  UC562677  Cuscuta subinclusa Joseph P. Tracy 1932-9-10 10789 Contra Costa Franklin Canyon 152 Comment
  UC691907  Cuscuta subinclusa Mary L. Bowerman 1933-9-9 2428 Contra Costa e of Frog Pond; Mount Diablo, Rhine Canyon 457 Comment
  CDA23080  Cyclospermum leptophyllum D. G. Kelch, D. A. Weinstein 2008-5-5 8 .09 Contra Costa Carquinez Strait; Richmond. W Chevy s Hill. N parking lot of Hilltop Mall. Comment
  CDA6262  Cymbalaria muralis D. G. Kelch, A. G. Murdock 2005-5-23 5 .376 Contra Costa Carquinez Strait Region; Crockett - Crolona Heights. 6th Street at Lillian Street, Crockett. Comment
  UC2013065  Cynara cardunculus Barbara Ertter with Mary Bowerman, Lisa Schultheis 1996-7-5 14927 Contra Costa Northwest base of Mount Diablo access to Foothills Regional Park from North Gate road along Little Pine Creek. 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
  RSA721595  Cynosurus echinatus Mary L. Bowerman 1975-6-7 s.n. Contra Costa Mount Diablo. Big Spring. Comment
  SEINET190455  Cyperus eragrostis Thomas Morley 1940-12-3 90 Contra Costa Banks at upper end of San Leandro Lake near mouth of Redwood Creek. 130 Comment
  UC1606358  Cyperus eragrostis Barbara Ertter, Brad Olson 1991-9-28 10848 Contra Costa s. end San Pablo Reservoir (between Orinda and El Sobrante) 97 Comment
  UC2028462  Cyperus eragrostis Barbara Ertter with Chris Thayer 1996-10-25 15392 Contra Costa Southwest flank of Mount Diablo, lowers South Gate Road just inside park boundary Comment
  UC2046350  Cyperus involucratus Barbara Ertter 2000-9-17 17524 Contra Costa Cerrito Creek at base of Albany Hill. Comment
  SEINET7582371 Image available Cyperus niger Louis C. Wheeler 1952-10-2 7000 Contra Costa Mount Diablo, ca 0.8 mile up from Turtle Ranch, ca 1 mile downhill from divide in road. Comment
  CAS-BOT-BC114071  Cyperus squarrosus Walter Knight; Frank Almeda; Joanne Dean; B. Doyle 1978-10-11 3324 Contra Costa Browns Island, Botany Cove. Comment
  CDA35758  Cytisus striatus V. Guise 2011-5-13 PDR# 1641027 Contra Costa Richmond; Wildcat Canyon Regional Park, 2755 McBryde Ave. 0 Comment
  CDA42428  Cytisus striatus D. G. Kelch, Vince Guise 2012-7-26 12 .236 Contra Costa Wildcat Canyon Park, Alvarado Unit. Comment
  UC2070617  Danthonia californica Barbara Ertter 2002-5-16 17862 Contra Costa Richmond Field Station (UC-Berkeley). Comment
  CAS-BOT-BC287365  Deinandra Walter Knight 1977-7-24 s.n. Contra Costa Black Diamond Mines Regional Preserve. Nortonville Ridge 304 Comment
  UC1481555  Deinandra corymbosa Neil Havlik 1980-5-14 917 Contra Costa e side Pt. Pinole Regional Shoreline Comment
  UCD32433  Deinandra corymbosa Beecher Crampton 1950-6-20 596 Contra Costa Contra Costa County, 1 mile north of Richmond, Triangle Court. Comment
  JEPS12619  Deinandra kelloggii Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  UC480997  Deinandra kelloggii Mary K. Curran May 1886 Contra Costa near Antioch Comment
  CAS-BOT-BC294020  Deinandra kelloggii John Thomas Howell 1930-9-28 5505 Contra Costa 3.2 miles from Byron on Marsh Creek Road Comment
  JEPS111706  Deinandra lobbii D. G. Kelch 2004-5-7 04 .178 Contra Costa Ca ada del Cierbo Ca ada del Cierbo 40 Comment
  UC2029061  Deinandra lobbii Barbara Ertter with Delia Taylor 2003-6-22 18225 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, ridge south of Arata Overlook Trail NE of park headquarters east of Somerville Road. Comment
  UCSB39457  Delphinium decorum Fritzke, Sue 1980-3-29 Contra Costa 0.5 miles from the east end of Ball Rd; in the Shell Ridge Open Space Area; SE of the rock quarry 124 Comment
  UC85570  Delphinium hansenii subsp. hansenii Katharine Brandegee 1907-5 Contra Costa Bet. Antioch and Marsh Creek Comment
  UC692144  Delphinium hesperium Mary L. Bowerman 1931-5-2 786 Contra Costa foot Eagle Point Ridge; Mount Diablo Comment
  RSA721744  Delphinium hesperium Barbara J. Ertter 1995-5-29 14242 Contra Costa S side Mt Diablo, edge of open meadow in flats near head of Curry Creek along road to Sheepherderss Springs from Sloam Road. 427 Comment
  SEINET12086747  Delphinium hesperium J. T. Howell 1931-1 6482 Contra Costa North Side of Mt. Diablo Comment
  JEPS120270  Delphinium hesperium subsp. hesperium Barbara Ertter with David Gowen 2012-6-9 21022 Contra Costa at junction of Seaview Trail and road into EBMUD land north of Vollmer Peak, southeastern Tilden Park in Berkeley Hills Comment
  SEINET11268200  Delphinium hesperium subsp. hesperium Barbara Ertter 1998-5-13 16137 Contra Costa In hills south of Pittsburg, head of SE branch of Loughler Loop Trail.; 0 305 Comment
  UC9195  Delphinium hesperium subsp. pallescens J. Burtt Davy 1895-4-8 974 Contra Costa foothills Antioch Comment
  LA207541  Delphinium hesperium subsp. pallescens H. Lewis; Carl Epling 1944-5-6 sn Contra Costa 1.2 mi. S of Marsh Creek Road on Beck Road to Livermore Comment
  UC9202  Delphinium nudicaule W. H. Brewer 1862-5-7 1053 Contra Costa n slope Monte Diablo Comment
  RSA398660  Delphinium nudicaule John Doyen, Glenn A. Gorelick 1966-4-22 s.n. Contra Costa Russelman Park, Mt. Diablo State Park. 305 Comment
  POM203934  Delphinium patens J. T. Howell 1931-3-10 5758 Contra Costa East side of Mt. Diablo 7 miles from Clayton on Livermore road. Comment
  CHSC24924  Delphinium patens subsp. patens M. A. Callahan 1976-4-12 5 Contra Costa On ne slope 90 m s of roadhead on Mohawk Dr. Pleasant Hill. Comment
  CAS-BOT-BC116460  Delphinium patens subsp. patens Miss Mary Leolin Bowerman 1931-3-21 584 Contra Costa Sycamore Canyon, below chaparral on west facing slope Comment
  UC909543  Delphinium patens subsp. patens J. Ewan 1934-4-8 8754 Contra Costa South Fork Marsh Creek Morgan Territory (slope) 243 Comment
  CAS-BOT-BC17041  Delphinium recurvatum R. F. Hoover 1967-4-28 10511 Contra Costa Byron Hot Springs. Comment
  CAS-BOT-BC17042  Delphinium recurvatum C. Epling; G. Miles 1945-3-23 542 Contra Costa 5 miles west of Tracy-Byron Road on road to Byron Hot Springs. Comment
  JEPS5529  Delphinium recurvatum R. F. Hoover 1938-3-25 2900 Contra Costa Byron Hot Springs Comment
  JEPS90889  Delphinium recurvatum Dean W. Taylor 1991-5-2 11634 B Contra Costa Byron Hot Springs Road 0.3 mi s of Holey Road (San Joaquin Valley); , Byron Hot Springs Road 39 Comment
  UC1314933  Delphinium recurvatum R. F. Hoover 1967-4-28 10511 Contra Costa Byron Hot Springs Comment
  UC2070612  Deschampsia cespitosa subsp. holciformis Barbara Ertter with Chris Thayer, Dianne Lake et al. 2001-5-26 17657 Contra Costa Stamm Unit of Antioch Dunes National Wildlife Refuge east of Antioch. Comment
  CAS-BOT-BC192673  Deschampsia danthonioides Mary L. Bowerman 1935-6-28 3164 Contra Costa Chase Pond 548 Comment
  CAS-BOT-BC192675  Deschampsia danthonioides Walter Knight; Irja Knight; Mary L. Bowerman 1969-6-4 2621 Contra Costa 100 yds west of Chase Pond. Mt. Diablo 554 Comment
  SEINET3559560 Image available Dichelostemma capitatum Lewis S. Rose 1932-3-15 3284 Contra Costa Byron. Comment
  UC64062  Dichelostemma capitatum Harley P. Chandler 1901-3-22 854 Contra Costa near Martinez; San Francisco Bay Region Comment
  JEPS112511  Dichelostemma congestum D. G. Kelch 2004-5-7 04 .182 Contra Costa Ca ada del Cierbo 40 Comment
  CAS-BOT-BC502555  Dichelostemma congestum John Thomas Howell 1933-5-14 11258 Contra Costa Hills east of St. Mary's College Comment
  CDA1975  Digitaria sanguinalis D. G. Kelch, A. G. Murdock 2005-6-27 5 .39 Contra Costa Carquinez Strait; 6th Street at Lillian Street, Crockett. Comment
  CAS-BOT-BC151950  Diplacus douglasii John Thomas Howell 1941-4-6 16177 Contra Costa Near Deer Flat, Mt. Diablo Comment
  SJSU7703  Diplacus tricolor J. A. Johnson 1956-4-12 20 Contra Costa 1.5 mi E of Concord in El Monte District Comment
  CAS-BOT-BC121841  Dirca occidentalis Howard E. McMinn 1925-1-1 s.n. Contra Costa Head of San Leandro Creek Comment
  CAS-BOT-BC121842  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
  JEPS77000  Dirca occidentalis Robert M. Lloyd 1963-3-17 2131 Contra Costa Skyline Drive 0.5 mi e intersection with Grizzly Peak Road (across from 7090 Skyline, Huckleberry trail) Comment
  SBBG4896  Dirca occidentalis H. and M. Dearing 1940-3-20 4122 Contra Costa Berkeley hills in Tilden Park, Berkeley Comment
  LA209792  Dirca occidentalis Joseph Andorfer Ewan; 1934-3-10 8643 Contra Costa Wildcat Canyon, 2 mi below Orinda Rd bridge, Comment
  OBI3339  Dirca occidentalis Neil Havlik 1969-3-25 310 Contra Costa On the NE slope of Grizzly Peak 488 Comment
  UCSB26563  Dirca occidentalis Havlik, Neil 1969-3-25 Contra Costa Junction of Grizzly Peak Blvd. and South Park Drive, at the southern end of Tilden Regional Park 487 Comment
  UC792336  Disporum hookeri J. A. Rattenbury 1948-4-13 111 Contra Costa on s side of highway above creek 1/2 mi e of Oakland Tunnel 213 Comment
  RSA367630  Disporum hookeri var. hookeri John Doyen, Glenn A. Gorelick 1966-4-22 s.n. Contra Costa Russelman Park. Mt. Diablo State Park. Comment
  CAS-BOT-BC208654  Distichlis spicata A. A. Beetle 1941-6-24 s.n. Contra Costa Point Richmond on San Francisco Bay Comment
  RSA739726  Dittrichia graveolens John Dittes 2006-10-26 1412 Contra Costa San Joaquin Valley (foothills near NW edge) 2 air mile S of Marsh Creek Reservoir Gauging Station, 1.6 air mile SW of intersection of Camino Diablo and Vasco Road, Contra Costa Water District's Los Vaqueros Watershed Mitigation. 67 Comment
  SEINET9307556  Dittrichia graveolens Unknown 2002-10-22 1959 Contra Costa Contra Costa Comment
  JEPS68971  Dodecatheon clevelandii subsp. patulum Edward Lee 1935-3-10 1305 Contra Costa s watershed of Kirker Creek Nortonville (s watershed of Kirker Creek) (Nortonville) Comment
  SBBG5610  Dodecatheon clevelandii subsp. patulum J. M. Tucker 1946-3-24 1384 Contra Costa hills between Nortonville and Somersville Comment
  UC2036955  Dodecatheon clevelandii subsp. patulum Mary L. Bowerman 1946-3-10 4085 Contra Costa Common in steep open grassy hillside toward west end of Shell Ridge. Also some plants on northerly face of ridge further east. Comment
  UC1111024  Dodecatheon hendersonii Herbert L. Mason 1926-3-7 2700 Contra Costa Mt. Diablo Comment
  UC691830  Dodecatheon hendersonii Mary L. Bowerman 1931-3-7 555 Contra Costa South Road near upper end Mount Diablo Mount Diablo Comment
  UCSB11262  Dodecatheon hendersonii Hayes, Judy 1961-3-29 Contra Costa 2 miles N of Danville on Cliffhill Road Comment
  JEPS20291  Downingia insignis Lewis S. Rose 1956-4-16 56017 Contra Costa 2 mi se Byron 7 Comment
  RSA114055  Downingia insignis H. L. Mason 1952-4-14 14267 Contra Costa 3.5 miles S of Byron Comment
  UCR196231  Downingia ornatissima Beecher Crampton 1950-4-22 530 Contra Costa 2 mi south of Antioch, on road from Antioch to Lone Tree Valley 61 Comment
  UC1188727  Downingia pulchella John H. Weiler 1959-4-11 5947 Contra Costa se of Martinez (near the airport along State Highway 24) Comment
  CDA42722  Dryopteris arguta D. G. Kelch 2005-5-1 5 .19 Contra Costa Carquinez Strait; Crockett; Edwards Canyon. 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
  UC1076338  Dryopteris arguta Herbert L. Mason 1924-11-23 1166 Contra Costa via Cashion Creek Las Trampas Ridge Comment
  UC42145  Dryopteris arguta Ivar Tidestrom VI, 1895 7 Contra Costa canyon near Crockett Comment
  UC692113  Dryopteris arguta Mary L. Bowerman 1930-6-18 342 Contra Costa Dan Cook Canyon; Mt. Diablo Comment
  UC692114  Dryopteris arguta Mary L. Bowerman 1930-8-24 427 Contra Costa lower trail Mitchell Canyon; Mt. Diablo 259 Comment
  UC830948  Dudleya cymosa subsp. paniculata Alice Eastwood 1915-5-30 Contra Costa near type locality; Mount Diablo Comment
  UC2028322  Dudleya cymosa subsp. paniculata Barbara Ertter, Susan D'Alcamo 1998-6-12 16154 Contra Costa North Gate Road on west flank of Mount Diablo near Buckle Point Comment
  JEPS128780  Dysphania chilensis Kevin Hintsa 2000-8-17 Contra Costa Mount Diablo State Park, flats just upstream from Pine Pond's willow forest. Comment
  SJSU10392  Echinochloa crus-galli J. E. Cox 1976-11-26 Contra Costa right of way of Dolores E Bay Municipal Utilities District, Lafayette Comment
  UC1818961  Echinochloa crus-galli Barbara Ertter 1995-8-19 14502 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
  CAS-BOT-BC197107  Echinochloa crus-galli D. E. Breedlove 1970-9-3 17685 Contra Costa On Sierra Vista Way. Lafayette Comment
  UC2029147  Echinochloa crus-galli Barbara Ertter with Dan Norris 1999-11-14 16850 Contra Costa Black Diamond Mines Regional Preserve, south of parking area for Somersville townsite. Comment
  UC692401  Echinochloa crus-pavonis Mary L. Bowerman 1936-10-24 3582 Contra Costa N road below 2-story house E of N gate North Gate (roadside) Comment
  RSA0027708  Eclipta prostrata Barbara Ertter 1996-9-19 15298 Contra Costa Antioch Marina, edge of Dow Marsh lands. Comment
  UC2027936  Eclipta prostrata Barbara Ertter 1996-9-19 15298 Contra Costa Antioch Marina, edge of Dow Marsh lands. Comment
  SEINET3892203  Eichhornia crassipes Barbara Ertter 1990-9-16 9642 Contra Costa Junction of Cypress Road & Jersey Island Road E of Oakley, covering ditch between road & field.; 0 Comment
  UC1949081  Eleocharis acicularis Barbara Ertter with Jim Dunne, David Gowen, Lech Naumovich 2009-12-3 19802 Contra Costa at upper (south) end of San Pablo Dam Reservoir northwest of Orinda; lower areas where recently inundated Comment
  UC1812  Eleocharis macrostachya J. Burtt Davy 1897-9-4 4077 Contra Costa Stege Comment
  UC691972  Eleocharis macrostachya Mary Bowerman 1935-6-21 3152 Contra Costa S of Turtle Rock (pool E of main pond); Mount Diablo Comment
  UCR263535  Eleocharis macrostachya Barbara Ertter 1998-5-3 16062 Contra Costa Central Coast, area of Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo, below road southeast of ponds 305 Comment
  CAS-BOT-BC112794  Eleocharis macrostachya Barrett Anderson 1987-4-29 3484 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD. 125 Comment
  CAS-BOT-BC112797  Eleocharis macrostachya Walter Knight 1978-8-19 3233 Contra Costa Upper Sindecich Lagoon. Briones Regional Park. 335 Comment
  CAS-BOT-BC112218  Eleocharis rostellata Miss Mary Leolin Bowerman 1967-7-19 37175 Contra Costa NW end of Shell Ridge, just S of the highway (Heather Farm), by sulphurous stream. Comment
  RSA129552  Elymus X gouldii H. S. Yates 1933-6-18 3649 Contra Costa Mt Diablo; Near Danville 137 Comment
  JEPS68570  Elymus glaucus W. L. Jepson 1918-6-3 7576 Contra Costa Donner Canyon Vicinity of San Francisco Bay, Mt. Diablo 533 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
  UC38136  Elymus glaucus J. Burtt Davy April 1897 Contra Costa Point Isabel Comment
  UC2028479  Elymus glaucus Barbara Ertter with Richard K. Brummitt 1998-5-6 16101 Contra Costa Point San Pablo west of Richmond, crest of road to yacht harbor Comment
  UC691206  Elymus glaucus Mary L. Bowerman 1933-5-3 1988 Contra Costa Mountain Springs Canyon Mount Diablo (at trough for deer (later Pioneer fire rd was built across canyon at this spot), 3 ft from stream) Comment
  CAS-BOT-BC203432  Elymus glaucus subsp. glaucus Mary L. Bowerman 1935-5-16 3009 Contra Costa Mount Diablo. Behind Gabriel-Hinks' (east side of North Peak) 289 Comment
  CDA6126  Elymus multisetus D. G. Kelch 2007-5-12 7 .291 Contra Costa Carquinez Strait; Franklin Ridge, S of Hwy 4 at McEwen Rd. Comment
  UC1584692  Epilobium brachycarpum Jerry Powell 1987-11-1 1521 Contra Costa Point Molate Richmond (along railroad bed) Comment
  UCD36037  Epilobium brachycarpum Beecher Crampton 1949-8-5 489 Contra Costa Between the cities of Orinda and Moraga, on Hill Road, off of Moraga Road, right at summit. 106 Comment
  UC101786  Epilobium campestre Katharine Brandegee 1907-6-16 Contra Costa near S.P. Station; Antioch Comment
  UC1818970  Epilobium campestre Barbara Ertter, M. L. Bowerman, L. Schultheis, Kevin Hintsa 1995-10-22 14531 Contra Costa Three Springs Trail on northeast side of Mt. Diablo, south of crest of Marsh Creek Rd. dried roadside pond, clay. Comment
  CAS-BOT-BC166162  Epilobium canum subsp. canum L. R. Abrams 1910-10-8 4342 Contra Costa Mt. Diablo 1158 Comment
  CAS-BOT-BC166161  Epilobium canum subsp. canum E. M. Zeile 1921-10-1 40 Contra Costa Vallejo Junction Comment
  CDA38070  Epilobium ciliatum D. G. Kelch 2003-8-13 3 .142 Contra Costa Carquinez Strait; Pinole Creek. Comment
  UC1784907  Epilobium ciliatum subsp. ciliatum Barbara Ertter 1994-6-26 12875 Contra Costa S of Point Molate Beach Park in W Richmond N of San Rafael Bridge, at edge of San Francisco Bay Comment
  UC2027881  Epilobium ciliatum subsp. ciliatum Barbara Ertter 2000-9-30 17534 Contra Costa West side Mount Diablo, pond on China Wall Road ca 1/2 mile NW of Macedo Ranch. Comment
  UC2070463  Epilobium ciliatum subsp. ciliatum Barbara Ertter with Brad Olson, Dianne Lake, Lynne Hosley and A. Youngson 1991-10-20 10877 Contra Costa Dow Wetlands Preserve, just W of Antioch marina. Comment
  UCD105799  Epilobium ciliatum subsp. ciliatum Terri Williamson 1990-5-22 72 Contra Costa 212 Poshard St. Pleasant Hill. 12 Comment
  UC1122344  Epilobium densiflorum H. S. Yates 1934-9-2 4075 Contra Costa 1 1/2 mi nw Orinda; Concord Quadrangle Comment
  SEINET12859577  Epilobium pygmaeum K. Brandegee 1907-6-16 s.n. Contra Costa Antioch Comment
  CDA31168  Epipactis helleborine D. G. Kelch 2008-9-2 8 .305 Contra Costa Carquinez Strait.; Pinole Valley Park. Comment
  UC1789170  Epipactis helleborine Barbara Ertter 2001-10-29 17811 Contra Costa Tilden Regional Park, Wildcat Gorge upstream from Lake Anza, understory of mixed forest; scattered plants. Comment
  UC2029016  Epipactis helleborine Barbara Ertter 1999-7-17 16769 Contra Costa Tilden Regional Park, trail to Jewel Lake paralleling Wildcat Creek, through thick woodland growth. Comment
  UC1005902  Epiphyllum N. Floy Bracelin 1943-5-16 2513 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  CAS-BOT-BC57259  Equisetum laevigatum Mary L. Bowerman 1931-5-16 864 Contra Costa Lower Silver Spring Comment
  CAS-BOT-BC57764  Equisetum telmateia Mary L. Bowerman 1939-3-31 3737 Contra Costa Mount Diablo, Johny Walker Spring. 731 Comment
  UC2028554  Equisetum telmateia subsp. braunii Barbara Ertter 1998-11-15 16462 Contra Costa North side Mount Olympia on north side Mount Diablo Comment
  POM300619  Equisetum telmateia var. braunii Mary L. Bowerman 1930-8-24 433 Contra Costa MItchell Canyon. 252 Comment
  RSA118089  Eragrostis curvula J. T. Howell 1954-9-5 30026 Contra Costa Along road, Marsh Creek Springs Park Comment
  JEPS100099  Eremocarpus setiger A. Langston 2003-7-9 AL 64 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC908868  Eriastrum pluriflorum Herbert L. Mason 1933-6-10 7252 Contra Costa Brentwood Comment
  UC691866  Ericameria arborescens Mary L. Bowerman 1932-9-17 1583 Contra Costa w fork Donner Canyon (bank between upper forks); Mount Diablo 304 Comment
  CAS-BOT-BC287528  Ericameria linearifolia H. E. McMinn 1922-6-2 96 Contra Costa From near summit of Mt Diablo Comment
  CAS-BOT-BC287529  Ericameria linearifolia Alice Eastwood 1915-5-30 4479 Contra Costa Mt Diablo Comment
  POM196004  Ericameria linearifolia R. Raven 1929-3-31 s.n. Contra Costa Marsh Creek Canyon Comment
  RSA102866  Ericameria linearifolia H. N. Bolander 1866-1 6141 Contra Costa Monte [Mount] Diablo Comment
  UC36554  Ericameria linearifolia H. N. Bolander 1866-4-1 6141 Contra Costa Mount Diablo Comment
  UC75068  Ericameria linearifolia C. F. Baker 1903-4-28 2942 Contra Costa Mitchell's Canyon Mt. Diablo, Mitchell's Canyon (Mt. Diablo, open mountain slopes) Comment
  UCD102386  Ericameria linearifolia Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. North Peak Road to North Peak. 920 Comment
  UCD131386  Ericameria linearifolia P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  UC691858  Erigeron foliosus var. franciscensis Mary L. Bowerman 1930-6-28 407 Contra Costa summit Meridian Peak Comment
  UC31418  Erigeron lonchophyllus F. P. McLean 1875-3-1 Contra Costa Mt. Diablo Comment
  JEPS41373  Erigeron philadelphicus var. philadelphicus W. L. Jepson 1922-5-26 9672 Contra Costa North Berkeley Hills Comment
  JEPS108352  Erigeron philadelphicus var. philadelphicus David Gowen 2005-3-31 220 A Contra Costa Valley east of Sibley Regional Preserve boundary. Growing along stream. Comment
  CDA37271  Eriobotrya japonica D. G. Kelch 2011-3-5 11 .033 Contra Costa Carquinez Strait Region; Richmond. Chevy s Hill. Comment
  UC691673  Eriodictyon californicum Mary L. Bowerman 1932-9-3 1530 Contra Costa Mount Diablo , Muir Area (Muir Area, Burn (1931)) Comment
  CAS-BOT-BC248088  Eriogonum angulosum H. M. Hall 1916-8-17 10276 Contra Costa Deer Valley 182 Comment
  UC194953  Eriogonum angulosum H. M. Hall 1916-8-17 10276 Contra Costa Deer Valley 182 Comment
  CAS-BOT-BC248089  Eriogonum angulosum Rimo Bacigalupi; G. T. Robbins 1955-5-4 4986 Contra Costa Along Santa Fe railroad right-of-way, paralleling the Orwood road on the Orwood Tract, close to its crossing of Indian Slough, San Joaquin River delta region 6 Comment
  JEPS102893  Eriogonum covilleanum Barbara Ertter with Susan D'Alcamo 1998-6-12 16166 Contra Costa Devils Elbow trail SE of summit, not far from trailhead Mount Diablo 1036 Comment
  JEPS108225  Eriogonum covilleanum David Gowen 2005-5-6 281 Contra Costa Mt. Diablo State Park. Talus slope on the south side of North Peak. Comment
  CAS-BOT-BC250386  Eriogonum gracile Lewis S. Rose 1955-10-17 55187 Contra Costa Antioch 15 Comment
  UC692049  Eriogonum gracile Mary L. Bowerman 1930-9-27 468 Contra Costa West base spring Mount Diablo Comment
  UC1980601  Eriogonum gracile James L. Reveal 1974-8-6 3772 Contra Costa Summit of Mt. Diablo, near lower parking lot west of summit. Comment
  UCD100135  Eriogonum gracile Robert E. Preston 1996-9-27 1013 Contra Costa NW-facing hillside, 0.5 mile south of Contra Loma Reservoir. 106 Comment
  UC6565  Eriogonum gracile var. gracile Edw. L. Greene 1892-6-20 Contra Costa Mount Diablo Comment
  CAS-BOT-BC257474  Eriogonum inerme var. inerme Mary L. Bowerman 1931-6-4 920 Contra Costa Mount Diablo. Summit Comment
  JEPS57048  Eriogonum luteolum var. caninum W. L. Jepson 1894-10-1 Contra Costa Oakland Hills; w slope, towards Redwood Peak Comment
  SEINET8349867  Eriogonum nudum Barbara Ertter 1997-8-18 15766 Contra Costa Antioche Dunes (USFWS National Wildlife Refuge) on San Joaquin River east of Antioch, southwest corner of refuge north of railroad tracks in former vineyard. Comment
  SEINET530763  Eriogonum nudum var. auriculatum Paul Opler 2007-6-23 Contra Costa Point Molate. 19 Comment
  UC692159  Eriogonum nudum var. auriculatum Annetta Carter 1940-6-22 1600 Contra Costa Lime Ridge, n edge of s chaparral patch Mount Diablo 243 Comment
  CAS-BOT-BC268913  Eriogonum nudum var. auriculatum Annetta Carter 1940-6-22 1601 Contra Costa Mount Diablo. Lime Ridge 274 Comment
  RSA0029780  Eriogonum nudum var. auriculatum Barbara J. Ertter, Delia Taylor 2003-6-22 18229 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, River View Loop Trail along Somersville Road north of park headquarters. 152 Comment
  UC1795738  Eriogonum nudum var. auriculatum Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14675 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay; grassland/scrub at northeast corner of area. Comment
  UC2028205  Eriogonum nudum var. auriculatum Barbara Ertter with Richard Rabeler, Tony Morosco 1997-6-10 15662 Contra Costa Point Richmond, crest of road. Comment
  CAS-BOT-BC269816  Eriogonum nudum var. psychicola Peter Rubtzoff 1951-10-7 826 Contra Costa Along lower San Joaquin River, east of Antioch Comment
  UC1167551  Eriogonum nudum var. psychicola R. W. Thorp 1958-8-20 20 Contra Costa Antioch Comment
Read comments
Aug 24 2011
  SEINET10733565 Image available Eriogonum nudum var. psychicola Barbara J. Ertter 1997-8-18 Ertter 15766 Contra Costa Antioch Dunes (USFWS National Wildlife Refuge) on San Joaquin River east of Antioch, southwest corner of refuge north of railroad tracks in former vineyard, fine pale brown sand. Comment
  CAS-BOT-BC267446  Eriogonum truncatum M. K. Curran 1886-5-1 s.n. Contra Costa Antioch Comment
  UC6491 Image available Eriogonum truncatum W. H. Brewer 1862-5-29 1186 Contra Costa Camp 71, Marsh's Ranch, Contra Costa Co. Comment
  UC6492 Image available Eriogonum truncatum State Survey 1862-5-29 1186 Contra Costa Camp 71, Marsh's Ranch, Contra Costa Co. Comment
  UC85395  Eriogonum truncatum C. F. Baker 1903-4-28 2833 Contra Costa Marsh Creek Mt. Diablo, Marsh Creek Comment
  CAS-BOT-BC262346  Eriogonum vimineum Mary L. Bowerman 1930-6-18 350 Contra Costa Mount Diablo. Summit Comment
  UC196644  Eriophyllum jepsonii J. W. Congdon 1896-5-29 Contra Costa Mt. Diablo Comment
  UC697145  Eriophyllum jepsonii Mary L. Bowerman 1936-5-6 3409 Contra Costa Uncle Sam Canyon 304 Comment
  POM301037  Eriophyllum jepsonii Mary L. Bowerman 1936-5-6 3409 Contra Costa Uncle Sam Canyon 305 Comment
  UC691662  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1935-5-30 3097 a Contra Costa Eagle Point ridge = between the two n ridges which converge at Twin Peaks; Mt. Diablo, Eagle Point ridge 350 Comment
  CAS-BOT-BC300966  Eriophyllum lanatum var. achilleoides L. Constance 1933-6-25 E 94 Contra Costa Near the base of Mount Diablo Comment
  JEPS34592  Eriophyllum lanatum var. achilleoides W. L. Jepson 1918-6-5 7608 Contra Costa on the n peak Mt. Diablo Comment
  UC2028366  Eriophyllum lanatum var. achilleoides Barbara Ertter 1998-6-20 16258 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, south side of Flat Top Comment
  UCSB6523  Eriophyllum lanatum var. arachnoideum Keator, Glenn 1959-7-1 Contra Costa 1/4 mile above Laurel camp on Mt. Diablo Comment
  UC1252143  Eriophyllum staechadifolium Dr. Jerry Powell 1964-6-7 412 Contra Costa nw Richmond; Point Molate Comment
  CDA8346  Erodium botrys D. G. Kelch, A. G. Murdock 2005-4-2 05 .104-B Contra Costa Carquinez Strait; EBRP. Crockett Hills Staging Area. Crockett. Comment
  JEPS111973  Erodium botrys D. G. Kelch 2004-4-26 04 .148 Contra Costa Point Pinole 1 Comment
  JEPS107117  Erodium brachycarpum Barbara Ertter, Mary Bowerman et al. 1995-5-7 14044 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, grassy flat, roadside vegetation, clay substrate. Comment
  SEINET5604448 Image available Erodium cicutarium Rachel Van Noord 1998-1 4 Contra Costa Dinosaur Hill Park, Pleasant Hill, CA N 37* 56.149' W 122* 05.391 Comment
  UC571139  Erodium macrophyllum H. L. Mason 1929-3-15 5060 Contra Costa about 5 mi from Brentwood (Marsh Creek Road) Comment
  UC614848  Erodium macrophyllum Beryl O. Schreiber 1932-3-27 Contra Costa Mountain House Comment
  CDA38330  Eryngium armatum Chas. Lasser 1960-4-21 s.n. Contra Costa Pittsburg. 0 Comment
  UC692318  Eryngium castrense Mary L. Bowerman 1935-6-28 3169 Contra Costa Mt. Diablo, Chase Pond 548 Comment
  UC2026171  Eryngium castrense Barbara Ertter with Tony Morosco 1996-1-15 14547 Contra Costa Mount Diablo (southeast side) trail from Curry Point to Frog Pond; edge of Sheepherder Pond. Comment
  JEPS97706  Eryngium vaseyi Annetta M. Carter, Tom Morley, Malcolm Nobs 1951-3-25 3006 Contra Costa 3.3 mi. S of Byron. Comment
  UC1190972  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
  CAS-BOT-BC41526  Erysimum capitatum H. L. Mason 1933-4-9 7189 Contra Costa East of Antioch along the San Joaquin River. 12 Comment
  CDA33846  Erysimum capitatum D. G. Kelch 2010-5-15 10 .116 Contra Costa Mt. Diablo. Trail from Juniper Camp to Deer Flat. 0 Comment
  NY32657  Erysimum capitatum subsp. angustatum A. A. Heller 1908-4-16 8898 Contra Costa Sand hills east of Antioch. 22.9 Comment
  RSA39907  Erysimum capitatum var. angustatum P. A. Munz 1947-10-8 12205 Contra Costa Antioch 8 Comment
  JEPS68964  Erysimum capitatum var. capitatum Edward Lee 1935-3-10 1296 Contra Costa e Antioch (hollow in stablized dune); Antioch Sand Dunes Comment
  RSA102142  Erysimum capitatum var. capitatum G. B. Rossbach 1955-3-20 571 Contra Costa Mt Diablo. 1006 Comment
  UC534852  Erysimum capitatum var. capitatum H. L. Mason 1933-4-9 7189 Contra Costa sand hills along river e Antioch; San Joaquin River 12 Comment
  UCD114997  Erysimum capitatum var. capitatum R. F. Hoover 1935-3-10 s.n. Contra Costa Antioch. Comment
  CAS-BOT-BC402994  Eschscholzia californica Brandegee 1889-5-1 s.n. Contra Costa Antioch Comment
  UC10069  Eschscholzia californica Edw. L. Greene 1893-6-20 Contra Costa Mt. Diablo Comment
  UC1819026  Eschscholzia californica Barbara Ertter, Chris Thayer 1995-4-25 13996 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Black Hawk Ridge Rd. on north side Black Hawk Ridge. 548 Comment
  UC692105  Eschscholzia californica Mary L. Bowerman 1933-5-3 1973 Contra Costa due s Meridian Peak summit (on hillside above flat); Mount Diablo Comment
  CDA24555  Eschscholzia californica subsp. californica D. G. Kelch 2006-7-14 6 .335 Contra Costa Between Rte 4 and Carbon Rd. E Rodeo. Comment
  CAS-BOT-BC91578  Eschscholzia rhombipetala Brandegee 1889-4-1 s.n. Contra Costa Antioch. Comment
  UC2028364  Eucalyptus camaldulensis Barbara Ertter 1998-6-20 16260 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Borges Ranch Road at junction to private residences Comment
  UC2061495  Eucalyptus sideroxylon Dean G. Kelch 2016-5-27 16 .140 Contra Costa Miller-Knox Hill. 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
  JEPS1715  Eucrypta chrysanthemifolia var. chrysanthemifolia Mary L. Bowerman 1931-4-4 652 Contra Costa 4.5 mi from Mount Diablo, West road entrance; Mount Diablo 396 Comment
  UC24009  Eucrypta chrysanthemifolia var. chrysanthemifolia Jos. Burtt Davy 1901-4-21 6923 Contra Costa Wildcat Canyon Comment
  UC691713  Eucrypta chrysanthemifolia var. chrysanthemifolia Mary L. Bowerman 1932-5-6 1408 Contra Costa Mitchell Canyon floor; Mount Diablo 243 Comment
  UCD142375  Euphorbia crenulata Morris Halperin 1929-4-21 s.n. Contra Costa St. Mary's College Campus. Comment
  UC2027934  Euphorbia maculata Barbara Ertter with Chris Thayer 1996-10-25 15382 Contra Costa West side of Mount Diablo, North Gate Road 3 road miles below Junction near Mineral Spring. Comment
  UCR99454  Euphorbia oblongata L. C. Wheeler 1958-8-26 7446 Contra Costa c. 2 mi. SW of Martinez, 0.3 mi. NW of Glen Frazer on Santa Fe; apparently Franklin Canyon, 1.7 mi. west of Martinez at limit on California Route 4 Comment
  SD215496  Euphorbia oblongata Louis C. Wheeler 1958-8-28 7446 Contra Costa Circa 2 miles southwest of Martinez, 0.3 miles northwest of Glen Frazer on Santa Fe, apparently Franklin Canyon. 1.7 miles west of Martinez at limit on California Route 4. Comment
  UC1818929  Euphorbia spathulata Barbara Ertter, Brad Olson, Diane Lake 1996-4-14 14586 Contra Costa East side of Mt. Diablo, access from Morgan Territory Rd. to Prospectors Gap Rd., gate between archery range and private ranch, open oak woodland. Comment
  CAS-BOT-BC312169  Eurybia radulina Mary L. Bowerman 1932-9-5 1549 Contra Costa Inner Black Hills east of the meridian, Mount Diablo Comment
  CDA37846  Fallopia japonica Fonseca/Niang 2012-7-16 PDR# 1641164 Contra Costa El Sobrante; Circle Dr. 0 Comment
  CDA2178  Festuca arundinacea T. C. Fuller 1961-9-13 7002 Contra Costa Hwy J4, ca. 4 miles southeast of Byron. 0 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
  UCSB12515  Festuca perennis Grah, Nancy 1962-4-14 Contra Costa .6 miles north of Miner Rd. on Sleepy Hollow Lane, Orinda 182 Comment
  CAS-BOT-BC278927  Festuca rubra J. Burtt Davy 1897-4-1 s.n. Contra Costa Point Isabel Comment
  SEINET257715 Image available Festuca rubra M. Barkworth, D Amme 1989-6-15 5168 Contra Costa Bluffs back of beach just N of Castro Point Comment
  UCD66332  Festuca rubra P. B. Kennedy 1919-5-1 s.n. Contra Costa North Berkeley. Hills. Comment
  POM203448  Forestiera pubescens J. T. Howell 1933-3-29 10905 Contra Costa Canyon below Nortonville Comment
  CAS-BOT-BC384137  Forestiera pubescens subsp. parvifolia John Thomas Howell 1933-3-29 10905 Contra Costa Canyon below Nortonville Comment
  JEPS111552  Fraxinus angustifolia D. G. Kelch 2005-5-13 05 .250 Contra Costa Martinez Martinez. South of oil refinery along Railroad tracks in fragment of habitat 28 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-BC223392  Fraxinus dipetala H. E. McMinn 1922-10-1 407 Contra Costa Mitchell Canon [Canyon], Mt. Diablo Comment
  UC1753841  Fraxinus dipetala Annetta M. Carter, Leo Bowerman 1935-6-1 875 Contra Costa Mt. Diablo. NW facing slope, W side of main peak. 1005 Comment
  UC691836  Fraxinus dipetala Mary L. Bowerman 1933-4-26 1935 Contra Costa North Peak, ridge running se from the peak Mount Diablo 518 Comment
  UC692002  Fritillaria affinis Mary L. Bowerman 1931-3-8 561 Contra Costa Mount Diablo, near mouth of Mitchell Canyon Mitchell Canyon; Mount Diablo, Mitchell Canyon Comment
  CHSC67856  Fritillaria agrestis James D. Jokerst; N. McCarten, V. Daines 1986-3-26 2601 Contra Costa Los Vaqueros Project in Livermore Valley. Comment
  SEINET196591  Fritillaria liliacea Robert F. Hoover 1938-3-8 2819 Contra Costa Berkeley Country Club. Comment
  CDA3561  Fumaria capreolata D. G. Kelch, A. G. Murdock 2005-5-5 5 .208 Contra Costa Carquinez Strait Region; Point Pinole - Giant Marsh. Giant Salt Marsh. 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
  JEPS111526  Galium aparine D. G. Kelch 2005-5-5 05 .211 Contra Costa Point Pinole - Giant Marsh Giant Salt Marsh 3 Comment
  JEPS112102  Galium aparine A. G. Murdock 2004-3-19 223 Contra Costa Luzon Sycamore Ave. just east of Rodeo/Hercules where train crosses Highway 4 (Luzon) 60 Comment
  JEPS99947  Galium aparine S. O'Neil 2003-3-11 SEO 15 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC606742  Galium aparine Edward Lee 1936-4-19 1966 Contra Costa bluff at ne corner of island San Francisco Bay, Red Rock Comment
  UC2027965  Galium californicum subsp. californicum Barbara Ertter 1997-8-24 15770 a Contra Costa South side of Mount Diablo, Curry Canyon Road from Curry Point. Comment
  JEPS23262  Galium divaricatum G. Thomas Robbins 1959-5-23 4031 Contra Costa hillslope about one-half mi e Point San Pablo (overlooking San Pablo Bay); Richmond 7 Comment
  JEPS112105  Galium murale D. G. Kelch 2003-4-3 03 .345 Contra Costa Cummings Skyway South of Cummings Skyway and Crockett Blvd 134 Comment
  UCD121835  Galium nuttallii Laurence S. Jones 1934-4-8 s.n. Contra Costa West slope of Mt. Diablo. 609 Comment
  UC2028293  Galium parisiense Barbara Ertter with Dan Norris 1998-6-18 16221 Contra Costa West of Rock City area on south side of Mount Diablo, saddle on W Fossil Ridge Trail. Comment
  CAS-BOT-BC304346  Gamochaeta pensylvanica Gordon H. True 1975-6-27 7872 A Contra Costa Tilden Regional Park Botanic Garden, Tilden Regional Park, Wildcat Canyon Comment
  UC697203  Gamochaeta ustulata Mary L. Bowerman 1938-6-2 3654 Contra Costa 100 yds n Rock City Camp; Mount Diablo, Dan Cook Canyon 548 Comment
  SBBG50835  Garrya elliptica M. Siri 1974-5-12 33 Contra Costa above old fire rd, E slope of W ridge, Wildcat Cyn, 0.5 mi N of Leneve, Richmond Comment
  UC692506  Garrya elliptica Mary L. Bowerman 1933-3-11 1746 Contra Costa Fossil Ridge Mount Diablo (knoll s of 1778 point, of crest of hill) Comment
  CAS-BOT-BC200624  Garrya elliptica H. G. Bloomer 1863-2-11 1564 Contra Costa Hills near Oakland Comment
  CAS-BOT-BC200627  Garrya elliptica Mary L. Bowerman 1933-3-11 1746 Contra Costa Fossil Ridge, knoll south of 1778 point Comment
  CAS-BOT-BC200630  Garrya elliptica H. E. McMinn 810 Contra Costa Oakland Hills Comment
  UC2028041  Garrya elliptica Barbara Ertter 1998-3-7 15928 Contra Costa Southwest side of Mount Diablo, west-most knoll on Fossil Ridge, at end of fire road. Comment
  POM300683  Gastridium phleoides Mary L. Bowerman 1931-5-2 798 a Contra Costa Foot of Eagle Point ridge. Mount Diablo. Comment
  UC692706  Geranium dissectum Mary L. Bowerman 1930-6-28 401 Contra Costa Lower Silver Spring Mount Diablo Comment
  JEPS111972  Geranium molle D. G. Kelch 2004-5-9 04 .203 Contra Costa Crockett - Edwards Canyon Upper Edwards Canyon 160 Comment
  JEPS111974  Geranium molle D. G. Kelch 2004-4-25 04 .117 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
  UC2032837  Geranium molle Doran, Andrew Scott 2012-3-20 707 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. 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
  UC1795111  Geranium rotundifolium Barbara Ertter 1996-6-4 14684 Contra Costa Tilden Regional Park in hills E of Berkeley, restoration site NE of junction of Grizzly Peak Boulevard and Golf Course Drive Comment
  RSA48957  Gilia achilleifolia Verne Grant, Alva Grant 1948-5-15 8504 Contra Costa Morage ridge, Oakland Hills, near Contra Costa-Alameda county line Comment
  RSA67217  Gilia achilleifolia Verne Grant, Alva Grant 1948-5-2 8424 Contra Costa in Bear Creek Canyon, 0.5 miles north of summit and ca. 3.8 miles from Orinda-San Pablo road. Comment
  JEPS30770  Gilia achilleifolia subsp. achilleifolia G. Thomas Robbins 1937-4-17 122 Contra Costa w facing slope near Point Richmond; near Point Richmond Comment
  UC106854  Gilia achilleifolia subsp. achilleifolia C. F. Baker 1903-4-28 2951 Contra Costa Mt. Diablo, Mitchell Canyon Comment
  SBBG28032  Gilia achilleifolia subsp. achilleifolia V. Grant, A. Grant 1948-5-15 8505 Contra Costa Sacramento Northern Railway embankment, Moraga Cyn, Oakland hills Comment
  UC908902  Gilia achilleifolia subsp. multicaulis Herbert L. Mason 1928-4-15 4357 Contra Costa top of Morago Ridge Morago Ridge Comment
  UC963984  Gilia achilleifolia subsp. multicaulis R. F. Hoover 1941-4-11 4831 Contra Costa Marsh Creek Canyon Comment
  POM300971  Gilia achilleifolia subsp. multicaulis Mary L. Bowerman 1935-5-1 2932 Contra Costa North Road 2 miles from North Gate. 183 Comment
  UC691646  Gilia capitata subsp. capitata Mary L. Bowerman 1933-6-7 2253 Contra Costa just e of saddle between Meridian and North Peaks; Mount Diablo, just e of saddle btw Meridian and North Peaks Comment
  JEPS12791  Gilia capitata subsp. staminea Rimo Bacigalupi with G. T. Robbins 1955-5-4 4981 Contra Costa just e Antioch (on sand hills along San Joaquin River front); along San Joaquin River front, e of Antioch 9 Comment
  POM65956  Gilia capitata subsp. staminea Edward L. Greene 1903-4-25 2805 Contra Costa Antioch. 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
  UC903176  Gilia capitata subsp. staminea Ethel Crum 1936-4-5 1745 Contra Costa two mi w Byron; South Coast Ranges, w of Byron 45 Comment
  UC908108  Gilia capitata subsp. staminea Herbert L. Mason 1929-3-31 5159 Contra Costa Antioch; San Joaquin River Comment
  UC2062650  Gilia capitata subsp. staminea Barbara Ertter 2001-3-18 17566 Contra Costa Shell Ridge Open Space SW of Walnut Creek, west end of Ridge Top Trail. Comment
  JEPS85758  Gilia clivorum Roy E. Buck 1989-3-11 1102 Contra Costa 9 air km se Walnut Creek (ca 2.0 air km w of Moses Rock Spring, sw-facing slope on n side of North Gate Rd, 0.3 road mi se of park boundary); Mt. Diablo State Park 207 Comment
  UC1502525  Gilia clivorum Daniel J. Schoen 1980-4-9 Contra Costa Population #78004 Population Name: Eagle Ridge Comment
  UC691674  Gilia clivorum Mary L. Bowerman 1935-4-17 2827 Contra Costa West Road 2 mi from entrance (( = North Road), Mount Diablo); Mount Diablo, West Road (=North Road) 237 Comment
  UC909033  Gilia clivorum Herbert L. Mason 1929-3-29 5128 Contra Costa 2 mi e Clayton (Marsh Creek Road); e of Clayton Comment
  UCR178962  Gilia clivorum Peter L. Morrell, N. Takebayashi 1995-5-21 472 Contra Costa Central Coast, S of Clayton in Mitchell Canyon, above the banks of Mitchell Creek and beneath Eagle Peak 400 Comment
  CDA33810  Gilia clivorum D. G. Kelch 2010-5-15 10 .12 Contra Costa Mt. Diablo. Trail from Juniper Camp to Deer Flat. 0 Comment
  POM300968  Gilia clivorum Mary L. Bowerman 1935-4-19 2865 Contra Costa North Road, 6.3 miles from North Gate 610 Comment
  UC1554401  Gilia millefoliata Alice M. Ottley 1920-3-6 219 Contra Costa Black Hills San Francisco Bay Region, Black Hills Comment
  UC52505  Gilia tricolor subsp. tricolor H. M. Hall 1901-4-5 1727 Contra Costa Mt. Diablo Region of San Francisco Bay, Mt. Diablo 411 Comment
  SEINET10972175  Githopsis diffusa subsp. robusta Alice Eastwood 1915-5-30 Eastwood s.n. Contra Costa Comment
  SEINET10464620  Githopsis specularioides Bowerman 1935-5-18 BOWERMAN 3034 Contra Costa Meridian Peak north of the summit parking area 1067 Comment
  UC1051198  Gladiolus X colvillei N. Floy Bracelin 1944-6-11 2724 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC692667  Glycyrrhiza lepidota Mary L. Bowerman 1931-5-13 842 Contra Costa canyon floor 1 mi above sulphur spring; Mount Diablo, Pine Canyon Comment
  CDA6000  Gnaphalium canescens subsp. beneolens D. G. Kelch, A. G. Murdock 2004-7-16 4 .318 Contra Costa Carquinez Strait Region; Martinez-South: Pine Street entrance to Route 4 heading west. Comment
  UC691823  Gnaphalium palustre Mary L. Bowerman 1935-9-13 3342 Contra Costa Frog Pond Mount Diablo Comment
  UCD32426  Gnaphalium palustre Beecher Crampton 1950-6-20 595 Contra Costa Contra Costa County, 1 mile north of Richmond, Triangle Court. Comment
  CDA31363  Gnaphalium ramosissimum D. G. Kelch 2006-8-11 6 .373 Contra Costa Carquinez Strait.; Top of Edward s Canyon. Crockett. Comment
  SEINET10581007  Gomphocarpus fruticosus Walter Knight, Irja Knight 1977-8-21 Knight 3158 Contra Costa Martinez Regional Shoreline, Granger's Warf Park, Martinez, N end of Berrelessa Street Comment
  CDA34248  Grindelia camporum D. G. Kelch 2009-5-24 9 .303 Contra Costa Carquinez Strait; S of Ozol, W/SW of Martinez. Comment
  UCD131656  Grindelia camporum Beecher Crampton 1950-6-20 594 Contra Costa Richmond, south of Cutting Blvd, open grassy field immediately adjacent to Carlson Blvd. north of Stege. 15 Comment
  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-BC305243  Grindelia hirsutula Walter Knight 1978-7-13 s.n. Contra Costa Browns Island Comment
  JEPS120269  Grindelia hirsutula Barbara Ertter with David Gowen 2012-6-9 21023 Contra Costa at junction of Seaview Trail and road into EBMUD land north of Vollmer Peak, southeastern Tilden Park in Berkeley Hills 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
  UC1118576  Grindelia hirsutula G. T. Nordstrom 1937-10-28 1408 Contra Costa 1.6 mi nne Somersville; Mt. Diablo Quad. 182 Comment
  CAS-BOT-BC305221  Grindelia hirsutula J. T. Howell 1930-9-28 5496 Contra Costa Liberty School on Marsh Creek Road Comment
  CAS-BOT-BC305236  Grindelia hirsutula L. R. Abrams 1917-9-13 6727 Contra Costa Patterson Pass - east side Comment
  SEINET201967  Grindelia hirsutula var. hirsutula G. T. Robbins 1959-4-25 4003 Contra Costa Potero Hills above shore of San Francisco Bay S of Castro Pt. and just N of Richmond-San Rafeal Bridge Richmond Comment
  UC205988  Guillenia flavescens Katharine Brandegee Contra Costa Antioch Comment
  POM300595  Guillenia flavescens Mary L. Bowerman 1935-4-22 2879 Contra Costa North Road 2 miles from North Gate, just W of chaparral. 213 Comment
  JEPS54107  Guillenia lasiophylla H. P. Chandler 1900-3-24 Contra Costa Briones Hills Region of Mount Diablo Comment
  UC691080  Guillenia lasiophylla Mary L. Bowerman 1935-4-22 2892 Contra Costa ridge w Pioneer Road (w of Old Stage Road); Mount Diablo 853 Comment
  UC691127  Guillenia lasiophylla Mary L. Bowerman 1932-4-27 1401 Contra Costa canyon w Riggs Canyon; Mount Diablo, Oyster Ridge 350 Comment
  CAS-BOT-BC304576  Gutierrezia californica Lewis S. Rose 1932-10-2 32655 Contra Costa Marsh Creek Road Comment
  RSA455866  Gutierrezia californica E. E. Stanford 1930-9-20 2101 Contra Costa Near Walnut Creek Comment
  UC697195  Gutierrezia californica Mary L. Bowerman 1938-11-12 3729 Contra Costa toward crest of hillside n Lime Ridge; Mount Diablo, Lime Ridge 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
  UC1051002  Hebe buxifolia N. Floy Bracelin 1943-7-19 2549 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  UC1050012  Hebe speciosa N. Floy Bracelin 1941-8-3 1537 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  RSA721367  Hedera helix Barbara Ertter 1994-10-23 13915 Contra Costa Southwest El Cerrito, north edge Breuner s parking lot, northwest Albany Hill. Comment
  CAS-BOT-BC309405  Helenium puberulum L. R. Abrams 1910-10-8 4343 Contra Costa Mt Diablo 609 Comment
  CAS-BOT-BC305320  Helianthella castanea John Thomas Howell 1940-4-21 15398 Contra Costa Pine Canyon, Mt. Diablo Comment
  JEPS112743  Helianthella castanea Dean W. Taylor 2001-3-21 17614 Contra Costa Mount Diablo; Mount Diablo State Park, near Balancing Rock (ridge forming southerly watershed boundary Curry Creek Canyon), along fire road descending from ridge into Devils Slide (East Fork Sycamore Creek) 457 Comment
  UC194925  Helianthella castanea H. M. Hall 1916-5-31 10137 c Contra Costa flat on s side Mt. Diablo 1066 Comment
  CAS-BOT-BC223918  Helianthemum scoparium Mary L. Bowerman 1932-4-9 1332 Contra Costa Mount Diablo. Ridge to Wall Point, from near Rock City Comment
  UC521719  Helianthus californicus Joseph Andorfer Ewan 1933-10-15 8037 Contra Costa sw slope Mount Diablo (along open creek bed or burned area) Comment
  RSA0012947  Helianthus californicus Joseph A. Ewan 1933-10-15 8037 Contra Costa SW slope of Mount Diablo. Comment
  UC1795662  Helianthus californicus Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14628 Contra Costa Little Pine Creek at northwest foot of Mt. Diablo, along trail connecting North Gate Road to Castle Rock Road, Diablo Foothills Regional Park; along stream above stable, riparian vegetation. 91 Comment
  UC2070513  Helianthus californicus Barbara Ertter 2002-8-24 18034 Contra Costa Lower Perkins Canyon on NE base of Mount Diablo. Comment
  JEPS88686  Helianthus gracilentus Mary L. Bowerman 1932-10-1 1602 Contra Costa Mitchell Canyon Mount Diablo ((1931) burn near stream) Comment
  UC2070511  Helianthus gracilentus Barbara Ertter 2002-5-11 17844 Contra Costa Southwest side of Mount Diablo, Wall Point Road north of Sentinel Rock in Rock City Area. Comment
  UC691488  Helianthus gracilentus Mary L. Bowerman 1933-5-11 2074 Contra Costa most westerly part 1931 burn; Mount Diablo, Inner Black Hills Comment
  SD71038  Heliotropium amplexicaule Peter Rubtzoff 1967-9-5 5881 Contra Costa University of California campus, Berkeley, on dry hillside at the edge of Haviland Hall parking lot. Comment
  UC1613441  Heliotropium curassavicum Charles M. Belshaw 1935-5-30 947 Contra Costa Island route about 10 mi n of Antioch Bridge Comment
  CAS-BOT-BC305876  Helminthotheca echioides Walter Knight; Irja Knight 1978-8-14 3160 Contra Costa Browns Island Comment
  CAS-BOT-BC306266  Hemizonia congesta subsp. lutescens R. F. Hoover 1969-9-1 11568 Contra Costa Between San Pablo and Pinole Comment
  JEPS38255  Hemizonia congesta subsp. luzulifolia W. L. Jepson 1940-6-5 19935 Contra Costa Richmond Comment
  UC1536900  Hemizonia congesta subsp. luzulifolia Gordon H. True Jr. 1937-10-12 838 Contra Costa near Pinole 30 Comment
  UC762663  Hemizonia congesta subsp. luzulifolia R. F. Hoover 1937-9-2 2709 Contra Costa Walnut Creek Comment
  UC762755  Hemizonia congesta subsp. luzulifolia R. F. Hoover 1939-4-25 4061 Contra Costa Richmond hills Richmond Comment
  CAS-BOT-BC314850  Hemizonia congesta subsp. luzulifolia David D. Keck 1932-7-7 1740 Contra Costa 10 miles S. of Brentwood on Vasco Road to Livermore, southerastern Contra Costa County Comment
  CAS-BOT-BC314876  Hemizonia congesta subsp. luzulifolia Joseph Andorfer Ewan; Nesta Ewan 1935-8-23 9338 Contra Costa Wildcat Creek Comment
  POM360297  Hemizonia fitchii Hattie Benton 1917-09 Contra Costa Mt. Diablo. Comment
  RSA81659  Hemizonia kelloggii James I. McMurphy 1908-10-18 Contra Costa Antioch Comment
  SEINET5126926  Hemizonia kelloggii Kellogg 1870-4-22 s.n. Contra Costa Near Antioch Comment
  RSA216763  Hemizonia lutescens Robert F. Hoover 1969-9-1 11568 Contra Costa Between San Pablo and Pinloe. Comment
  POM301047  Hemizonia luzulifolia Mary L. Bowerman 1931-10-13 1061 Contra Costa Sycamore Valley, W of Sycamore Creek. Comment
  RSA81510  Hemizonia luzulifolia subsp. rudis James I. McMurphy 1909-9-25 s.n. Contra Costa Walnut Creek. Comment
  RSA81676  Hemizonia luzulifolia subsp. rudis James I. McMurphy 1909-9-24 s.n. Contra Costa San Ramon Road, above Hayward. Comment
  POM53580  Hemizonia pungens subsp. pungens C. F. Baker 1903-4-27 2875 Contra Costa Byron. Comment
  CDA38358  Heracleum lanatum A. G. Murdock 2004-4-3 260 Contra Costa Vaca Canyon. Comment
  UC901877  Heracleum lanatum L. Constance 1950-6-25 3326 Contra Costa s. rim Wildcat Canyon (Tilden Park); , Tilden Park 365 Comment
  JEPS29512  Hesperevax caulescens M. K. Curran May 1886 Contra Costa Antioch Comment
  JEPS33797  Hesperevax sparsiflora W. L. Jepson 1923-4-22 9864 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC310193  Hesperevax sparsiflora var. sparsiflora Barrett Anderson 1987-4-30 3504 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD 125 Comment
  CAS-BOT-BC310195  Hesperevax sparsiflora var. sparsiflora Mary L. Bowerman 1931-4-11 688 Contra Costa Mount Diablo. Pine Canyon 121 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
  JEPS111922  Hesperocnide tenella Dean G. Kelch and Andrew G. Murdock 2004-3-5 AGM 213 Contra Costa Martinez - Rankin Open Space. Comment
  CAS-BOT-BC167426  Hesperolinon breweri A. D. E. Elmer 1903-7-1 4545 Contra Costa Mount Diablo Comment
  CAS-BOT-BC167431  Hesperolinon breweri Helen K. Sharsmith 1947-6-2 3947 Contra Costa Headwaters of Marsh Creek, on shale (?) 0.6 miles from summit of Clayton-Tassajaro-Livermore Road, Mount Diablo 304 Comment
  RSA135385  Hesperolinon breweri Volney Rattan 1886-06 s.n. Contra Costa Mount Diablo Comment
  RSA151584  Hesperolinon breweri H. K. Sharsmith 1947-6-2 3947 Contra Costa Headwaters of marsh Creek, on shale (?), 0.6 miles from summit of Clayton-Tassajaro-Livermore road, Mount Diablo 305 Comment
  CAS-BOT-BC167432  Hesperolinon breweri Mrs. K. Brandegee 1907-6-16 s.n. Contra Costa Hills between Anioch and Marsh Creek, on the easterly side of Mt. Diablo Comment
  RSA91445  Hesperolinon breweri J. T. Howell 1942-7-19 s.n. Contra Costa Northeast of Deer Flat, Mount Diablo Comment
  UC692700  Hesperolinon californicum Mary L. Bowerman 1933-6-14 2275 Contra Costa Inner Black Hills e Knobcone Point; Mount Diablo Comment
  CAS-BOT-BC175986  Hesperolinon californicum Mary L. Bowerman 1935-6-28 3160 Contra Costa Inner Black Hills near canyon bottom (opposite old government trail to Chase Pond). Mount Diablo 457 Comment
  UC187375  Hesperomecon linearis C. F. Baker 1903-4-25 2802 Contra Costa Antioch Comment
  UC35090  Hesperomecon linearis W. C. Blasdale 1893-5-13 Contra Costa Antioch Comment
  RSA445543  Hesperomecon linearis H. de Forest 1930-05 s.n. Contra Costa [No location data on label] Comment
  SEINET10460684  Heterocodon rariflorum Bowerman BOWERMAN 3133 Contra Costa MT DIABLO 2100 Comment
  UC2028265  Heterocodon rariflorum Barbara Ertter 1999-6-12 16715 Contra Costa West Branch Alamo Creek on south flank of Mount Diablo, along unofficial path running from north spur of Black Hawk Ridge Road to south spur off of Knob Cone Point Road (near powerline). Comment
  CAS-BOT-BC318822  Heterotheca grandiflora Walter Knight 1965-3-1 907 Contra Costa Antioch Dunes Comment
  UC2027745  Heterotheca grandiflora Barbara Ertter 1997-1-5 15435 Contra Costa Ygnacio Valley Road crossing Lime Ridge on northwest side of Mount Diablo. Comment
  JEPS125919  Heterotheca sessiliflora subsp. bolanderi D. W. Taylor 2001-9-18 17913 Contra Costa Hillslopes above Kirker Pass road, drainage of Kirker Creek, along Nortonville Road directly under high-voltage steel tower electrical transmission lines. Comment
  UC2027735  Heterotheca sessiliflora subsp. echioides Barbara Ertter 1997-2-16 15458 Contra Costa Shell Ridge Open Space on west flank of Mount Diablo. Comment
  UC2027760  Heterotheca sessiliflora subsp. echioides Barbara Ertter 1996-11-24 15415 Contra Costa Southwest side of Mount Diablo, Wall Point Road across Pine Ridge ca 1/2 airmiles ENE of Macedo Ranch. Comment
  UCD133087  Heterotheca sessiliflora subsp. echioides Ann F. Johnson 1978-7-18 s.n. Contra Costa east of Antioch. Overlooking the south bank of the San Joaquin River. 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
  UC2028291  Heuchera micrantha Barbara Ertter, Dan Norris 1998-6-18 16226 Contra Costa Lower Devil's Slide trail along W Fork Sycamore Creek (madrone Canyon), south side of Mount Diablo. Comment
  RSA23172  Hibiscus californicus I. L. Wiggins 1938-8-15 9006 Contra Costa Banks of Old River branch of San Joaquin River at Highway #4. Comment
  CAS-BOT-BC203373  Hibiscus lasiocarpos var. occidentalis Virginia I. Dains; Walter Knight 1986-8-8 5499 Contra Costa Jct Rock S1 & Warner Cut Comment
  CAS-BOT-BC203383  Hibiscus lasiocarpos var. occidentalis Ira L. Wiggins 1938-8-15 9006 Contra Costa Banks of Old River branch of San Joaquin River at Highway #4 Comment
  UC691425  Hieracium albiflorum Mary L. Bowerman 1930-10-19 488 Contra Costa s road at Garden-of-the-Gods; Mount Diablo Comment
  JEPS100013  Hirschfeldia incana G. Smick 2003-5-30 GAS 208 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS111636  Holocarpha heermannii Andrew G. Murdock 2002-7-20 67 Contra Costa Mount Wanda - Martinez; ; ; crest of Mount Wanda on N side of fire road in large meadow 85 Comment
  JEPS12900  Holocarpha heermannii L. S. Rose 1941-10-13 41465 Contra Costa 1 mi e of Walnut Creek 50 Comment
  JEPS13492  Holocarpha heermannii W. L. Jepson 1920-8-12 9078 Contra Costa s slope, towards summit Mount Diablo Comment
  UC1332423  Holocarpha heermannii P. B. Dickey 1932-9-14 164 Contra Costa Walnut Creek Comment
  CAS-BOT-BC325828  Holocarpha heermannii David D. Keck 1933-11-2 2622 Contra Costa 5 mi. S.E. of Clayton on Marsh Creek Road opposite Mt. Diablo Comment
  POM299470  Holocarpha heermannii L. S. Rose 1941-10-13 41465 Contra Costa 1 miles E of Walnut Creek. 50 Comment
  POM360677  Holocarpha heermannii Hattie Beuton 1917-09 3287 Contra Costa Mt. Diablo. Comment
  POM52821  Holocarpha heermannii A. D. E. Elmer 1903-07 4613 Contra Costa Mount Diablo Comment
  RSA202873  Holocarpha heermannii L. S. Rose 1934-9-9 34462 Contra Costa S slope of Mt. Diablo; 9 miles NE of Danville. Comment
  UC1795651  Holocarpha heermannii Barbara Ertter, Brad Olson, Diane Lake, Seth Adams, et al. 1994-9-11 13096 Contra Costa Chaparral Springs addition to Mt. Diablo State Park, north side of Marsh Creek Road at high point southeast of Clayton,, open slopes between ponds at south foot of ridge, open woodland/ grassland, heavily grazed. Comment
  UC2029014  Holocarpha heermannii Barbara Ertter 1999-8-21 16792 Contra Costa Deer Flat Trail south of Murchio Gap, NW side of Mount Diablo. Comment
  UC615581  Holocarpha heermannii Beryl O. Schreiber 1933-10-5 935 Contra Costa Comment
  SJSU7097  Holocarpha macradenia D. J. Powers 1974-10-6 1001 A Contra Costa 100-300' E of Interstate Hwy 80 & 100-300 yards S of Appian Way, Pinole Comment
  UCD133200  Holocarpha macradenia Robert E. Preston 1993-6-29 624 Contra Costa Pinole, ca. 1,000 feet east of Interstate 80, between Interstate 80 and Crespi Junior High School. 94 Comment
  CAS-BOT-BC320239  Holocarpha obconica L. R. Abrams 1917-9-13 6723 Contra Costa Patterson Pass - east side Comment
  CAS-BOT-BC320244  Holocarpha obconica David D. Keck; J. Clausen 1933-10-27 2566 Contra Costa Vasco Road at junction with Byron Road Comment
  CAS-BOT-BC320247  Holocarpha obconica John Thomas Howell 1930-9-28 5500 Contra Costa 6.3 miles from Byron on Marsh Creek Road Comment
  CAS-BOT-BC320256  Holocarpha obconica David D. Keck 1933-10-27 2565 Contra Costa Kellogg Creek, 11 mi. from U.S. 48 on Vasco Road Comment
  SEINET10859135 Image available Holocarpha obconica subsp. autumnalis David D. Keck, Jens C. Clausen 1933-10-27 Keck 2567 Contra Costa 1.6 miles W. of Byron, 1.4 mi. from junction with Vasco Road. A pure stand on hillside that bore grain 2 years ago. Comment
  CAS-BOT-BC324616  Holocarpha virgata R. F. Hoover 1969-8-29 11566 Contra Costa Raymond Road and Ames Street, Livermore Valley Comment
  UC1069564  Holocarpha virgata subsp. virgata G. T. Nordstrom 1937-10-28 1407 Contra Costa 1.6 mi nne Somersville; Mt. Diablo Quad. 188 Comment
  OBI16037  Holocarpha virgata subsp. virgata Robert F. Hoover 1965-9-24 9648 Contra Costa W of Byron, E of Kellogg Crk Comment
  UC2029132  Holocarpha virgata subsp. virgata Barbara Ertter with David Gowen and Mike Park 2004-6-13 18372 Contra Costa Black Diamond Mines Regional Preserve, forks of Old Homestead Loop Trail. Comment
  CAS-BOT-BC152592  Holodiscus discolor var. discolor V. Rattan 1886-6-1 s.n. Contra Costa Near Martinez Comment
  CAS-BOT-BC152591  Holodiscus discolor var. discolor Mary L. Bowerman 1935-6-15 3130 Contra Costa Ridge running north from Mitchell, Pine divide at 3100 foot level - Mount Diablo 838 Comment
  CHSC114266  Hordeum brachyantherum D. G. Kelch; Troy MacGregor 2009-5-10 09 .288 Contra Costa Carquinez Strait: Fernandez Ranch in valley bottom along Christie Rd. 76 Comment
  JEPS100015  Hordeum brachyantherum S. O'Neil 2003-5-8 SEO 34 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CDA32929  Hordeum marinum subsp. gussoneanum D. G. Kelch 2009-5-24 9 .301 Contra Costa Carquinez Strait; S of Ozol, W/SW of Martinez. Comment
  SD211511  Hordeum marinum subsp. gussoneanum Barbara Ertter, Jim Jokerst and Dave Magney 1989-4-5 8121 Contra Costa Southeast Contra Costa County: Alkalai sink West and adjacent to Clifton Court Forebay, circa15 airmiles Southwest of Stockton Comment
  UC692426  Hordeum marinum subsp. gussoneanum Mary L. Bowerman 1931-5-13 846 Contra Costa Pine Canyon floor slightly more than a mi above the Sulphur Spring (Mount Diablo); , Pine Canyon Floor Comment
  SEINET10826946  Hordeum marinum subsp. gussoneanum A. Arthur Heller 1928-4-15 Heller 14498 Contra Costa Low ground near Byroa in clay soil. Comment
  UCD86141  Hordeum murinum subsp. glaucum Beecher Crampton 1956-5-14 3375 Contra Costa 5 miles south of Antioch. At head of Horse Valley. Comment
Read comments
Aug 17 2011
  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
  CAS-BOT-BC284890  Hordeum murinum subsp. leporinum R. E. Frenkel 1964-2-25 382 Contra Costa North of Marsh Creek Road, 1/4 mile west of junction with Walnut Blvd. 33 Comment
  UC2029074  Horkelia californica var. elata Barbara Ertter 2000-7-16 17408 Contra Costa Pine Creek on WNW base of Mount Diablo. Comment
  CAS-BOT-BC532053  Horkelia californica var. frondosa Joseph Andorfer Ewan 1934-5-20 8926 Contra Costa Russelmann Park, n. side Mt. Diablo Comment
  CAS-BOT-BC532055  Horkelia californica var. frondosa Mary L. Bowerman 1933-5-16 2996 Contra Costa Mount Diablo, Russelman Park, just south of the north boundary of sec. 25 396 Comment
  UC10308  Hornungia procumbens F. T. Bioletti 1892-1 Contra Costa Byron Comment
  UC692603  Hypericum formosum var. scouleri Mary L. Bowerman 1930-6-28 395 Contra Costa Mt. Diablo, Lower Silver Spring Comment
  UC565418  Hypericum perforatum Chas. M. Belshaw 1935-12-27 1418 Contra Costa ridge s. Redwood Canyon; Oakland & Berkeley Hills Comment
  JEPS100182  Hypochaeris glabra G. Smick 2003-3-27 GAS 100 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS36519  Hypochaeris glabra W. L. Jepson 1922-5-15 9645 Contra Costa North Berkeley Hills Comment
  UC55118  Hypochaeris glabra H. M. Hall 1901-4-5 1730 Contra Costa Mt. Diablo 527 Comment
  UC691776  Hypochaeris glabra Mary L. Bowerman 1933-5-25 2184 Contra Costa 411 Comment
  CAS-BOT-BC133498  Iris Walter Knight; Joanne Dean 1978-8-14 3152 Contra Costa Browns Island 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
  SEINET3875275  Iris douglasiana Kaye H. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4959 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough. SE portion of Bethel Slough.; 0 610 Comment
  UC4288  Iris longipetala J. Burtt Davy April, 1897 Contra Costa Point Isabel Comment
  UCD110262  Juglans hindsii Rimo Bacigalupi 1951-4-3 3253 Contra Costa Along Trampas Creek, 1 1/4 mi. n.e. of St. Mary's College. 167 Comment
  UC2028428  Juncus articulatus Barbara Ertter 1996-9-19 15300 Contra Costa Antioch Marina, edge of bay in Dow Marsh lands Comment
  UC691986  Juncus bufonius var. congestus Mary L. Bowerman 1932-11-26 1671 Contra Costa Mount Diablo, Boulevard Spring (North Road) Boulevard Spring; Mount Diablo, Boulevard Spring Comment
  SD241642  Juncus gerardi subsp. gerardi Barbara Ertter, Steve Matson 2003-5-31 18175 Contra Costa Martinez Regional Shoreline, brackish marsh along Pickleweed Trail west of Arch Bridge. Comment
  JEPS112438  Juncus occidentalis D. G. Kelch 2004-4-26 04 .144 Contra Costa Point Pinole 30 Comment
  RSA722106  Juncus occidentalis Barbara Ertter, Gary Schoolcraft, Tony Morosco 1996-4-6 14566 Contra Costa West end Oyster Point road in Mt. Diablo State Park. Comment
  UC2028588  Juncus oxymeris Barbara Ertter 1996-9-19 15299 Contra Costa Antioch Marina, edge of Dow Marsh lands. Comment
  SEINET3880605  Juncus oxymeris Kaye H. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4981 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough. SE portion of Bethel Slough.; 0 610 Comment
  RSA0069375  Juncus patens Katie Gallagher, Nick Jensen 2014-4-26 214 Contra Costa Las Trampas Regional Wilderness. 487 Comment
  JEPS102895  Juncus phaeocephalus var. paniculatus Barbara Ertter 1998-5-3 16061 Contra Costa 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
  CDA39263  Juncus phaeocephalus var. paniculatus J. Simmen 1971-5-27 s.n. Contra Costa Marsh Creek, Davis Camp, Brentwood. 0 Comment
  UC2046369  Juncus usitatus Barbara Ertter 2015-10-9 22456 Contra Costa N end of walkway on east edge of Dow Marsh west of Antioch marina on San Joaquin River Delta. Comment
  UC1819019  Juncus xiphioides Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14673 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay; wetlands behind facilities at base of ''D'' road. Comment
  UC480589  Juniperus californica Carl Meyer 1928-2-22 282 Contra Costa Mt. Diablo Comment
  UC77  Juniperus californica Harley P. Chandler 1901-4-5 980 A Contra Costa Mt. Diablo Comment
  UC78  Juniperus californica Edw. L. Greene 1892-6-20 Contra Costa Mt. Diablo Comment
  UC81  Juniperus californica A. Kellogg 78 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC235874  Keckiella corymbosa Lewis S. Rose 1932-6-24 32353 Contra Costa Mt. Diablo 1173 Comment
  JEPS11127  Keckiella corymbosa W. L. Jepson 1920-8-12 9073 Contra Costa very summit Mt. Diablo Comment
  UC691513  Keckiella corymbosa Mary L. Bowerman 1936-9-10 3544 Contra Costa Donner Canyon; Mount Diablo 304 Comment
  JEPS100145  Kickxia elatine A. Langston 2003-7-24 AL 73 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  POM300736  Koeleria macrantha Mary L. Bowerman 1932-4-16 1354 Contra Costa Eagle Point ridge above Twin Peaks ('1682' point) Comment
  SEINET186056 Image available Koeleria macrantha V. E. Long 1933-6-14 223 a Contra Costa Mt. Diablo 457 Comment
  UC692395  Koeleria macrantha Mary L. Bowerman 1933-5-3 1983 Contra Costa Alder Creek Canyon Mount Diablo; , Alder Creek Canyon 731 Comment
  SEINET10607073  Koeleria macrantha Virginia E. Long 1933-6-14 Long 223 a Contra Costa Mt. Diablo. On top of grassy ridge between Curry Cave trail canyon & W. fork. 457 Comment
  CDA7170  Lactuca serriola D. G. Kelch 2006-7-14 6 .331 Contra Costa Carquinez Strait; Along Marine Vista Ave immmediately west of Pacheco Slough. East of Martinez. Comment
  CAS-BOT-BC340538  Lactuca serriola Walter Knight; Joanne Dean 1978-8-14 3165 Contra Costa Browns Island Comment
  CAS-BOT-BC340539  Lactuca serriola A. D. E. Elmer 1903-7-1 4612 Contra Costa Port Costa Comment
  JEPS100180  Lactuca virosa A. Langston 2003-8-26 AL 86 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC340697  Lactuca virosa John Thomas Howell 1942-6-28 17004 Contra Costa Oakland Hills near Redwood Peak Comment
  RSA40156  Lactuca virosa J. T. Howell 1943-8-22 19310 Contra Costa Near head of San Leandro Creek Canyon. 244 Comment
  UC2028521  Lactuca virosa Barbara Ertter 1997-9-14 15804 Contra Costa WSW base of Mount Diablo, creek NW of Macedo Ranch between Pine Ridge and lowers Wall Point Road. Comment
  UC2029078  Lactuca virosa Barbara Ertter 2000-7-16 17402 Contra Costa Lower Pine Creek in Diablo Foothills Regional Park. Comment
  UC1818897  Lagophylla ramosissima Barbara Ertter, Mary Bowerman et al. 1995-5-7 14062 Contra Costa Three Springs Trail on NE side of Mount Diablo SE of Clayton, small serpentine patch at road junction Comment
  SEINET7949732  Lamium amplexicaule R. R. Halse 1988-2-20 3546 Contra Costa Along State Hwy. 4 near its junction with Balfour Road, on the S edge of Brentwood. 23 Comment
  UC1795667  Lasthenia californica Barbara Ertter, Mary Bowerman et al. 1995-5-7 14060 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, small serpentine patch at road junction Comment
  JEPS10187  Lasthenia californica subsp. californica W. L. Jepson 1923-4-22 9874 Contra Costa open hillsides and slopes Mount Diablo Comment
  JEPS6970  Lasthenia californica subsp. californica Peter Kamb 1950-3-18 1635 Contra Costa saddle between North Peak and South Peak; Mount Diablo 883 Comment
  UC135346  Lasthenia californica subsp. californica C. F. Baker 1903-4-28 2829 Contra Costa Marsh Creek Mt. Diablo Comment
  UC30447  Lasthenia californica subsp. californica Harley P. Chandler 1901-4-5 996 Contra Costa Mt. Diablo Comment
  UC34167  Lasthenia californica subsp. californica Harley P. Chandler 1901-4-5 993 Contra Costa Mt. Diablo Comment
  UC62978  Lasthenia californica subsp. californica H. M. Hall 1901-4-5 1767 a Contra Costa Mt. Diablo Region of San Francisco Bay (lower slopes) Comment
  CAS-BOT-BC324463  Lasthenia conjugens Milo S. Baker 1946-4-20 11330 Contra Costa Near Concord Comment
  CAS-BOT-BC324480  Lasthenia ferrisiae Alice Eastwood 1914-3-14 3761 Contra Costa Byron Springs Comment
  UC1363770  Lasthenia ferrisiae Robert Ornduff 1958-4-23 4945 Contra Costa 0.9 mi e junction of Bixler Road and Highway 4 (n of Hwy 4, n of Byron) Comment
  CAS-BOT-BC353334  Lasthenia fremontii K. Curran April (Year not stated). s.n. Contra Costa Suisun. Comment
  UC762046  Lasthenia fremontii R. F. Hoover 1937-5-14 2118 Contra Costa Byron Hot Springs Comment
  CAS-BOT-BC352926  Lasthenia glaberrima Kellogg 1870-4-20 s.n. Contra Costa Antioch Comment
  UC691499  Lasthenia glabrata subsp. glabrata Mary L. Bowerman 1933-5-5 2000 Contra Costa Alamo Canyon 304 Comment
  JEPS105698  Lasthenia glabrata subsp. glabrata David Gowen 2004-4-18 33 Contra Costa Black Diamond Mines Regional Preserve. South side of the valley opposite the Nortonville townsite. Comment
  UC1301065  Lasthenia gracilis Helen K. Sharsmith 1963-4-7 5290 Contra Costa e side Kirker Pass Road (w of Antioch); San Francisco Bay Region 152 Comment
  UC30435  Lasthenia gracilis Jos. Burtt Davy 1895-4-7 891 Contra Costa Antioch Comment
  CAS-BOT-BC361124  Lasthenia microglossa Mary L. Bowerman 1936-4-23 3405 Contra Costa Mount Diablo: Mitchell-Pine divide, northernmost 2750 ft. point 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
  CAS-BOT-BC205016  Lathyrus jepsonii var. jepsonii Walter Knight 1978-8-14 3124 Contra Costa Browns Island Comment
  UC2029076  Lathyrus latifolius Barbara Ertter 2000-7-16 17404 Contra Costa Pine Creek on NW base of Mount Diablo, Stage Road at Pine Pond. Comment
  SEINET10487284  Lathyrus sulphureus John G. Lemmon 1878-4-28 Lemmon s.n. Contra Costa Comment
  UC692407  Lathyrus vestitus var. vestitus Mary L. Bowerman 1930-6-5 257 Contra Costa 5.8 mi by road from North Gate (North Road); Mount Diablo 457 Comment
  UC85314  Lathyrus vestitus var. vestitus C. F. Baker 1903-4-28 2944 Contra Costa Mitchell Canyon Mt. Diablo Comment
  UC2061511  Laurus nobilis Dean G. Kelch 2016-4-30 16 .102 Contra Costa Carquinez Strait: Selby, west of Crockett. On west side of canyon near old dwelling foundation. Comment
  UC89156  Layia chrysanthemoides C. F. Baker 1903-4-27 2903 Contra Costa Byron Comment
  UC912574  Layia chrysanthemoides Herbert L. Mason 1929-3-31 5151 Contra Costa Sacramento River at Antioch; Sacramento River Comment
  CAS-BOT-BC321764  Layia gaillardioides Alice Eastwood 1915-5-30 4485 Contra Costa Mt. Diablo Comment
  UC30668  Layia gaillardioides H. P. Chandler 1900-3-24 Contra Costa Briones Hills; Mount Diablo Comment
  UC697167  Layia gaillardioides Mary L. Bowerman 1933-4-15 1864 Contra Costa second ridge s of Arroyo del Cerro; Mount Diablo Comment
  UC89223  Layia gaillardioides M. K. Curran Contra Costa Mt. Diablo Comment
  CAS-BOT-BC321745  Layia gaillardioides Dr. A. Kellogg no date on label s.n. Contra Costa Mt. Diablo Comment
  CAS-BOT-BC321081  Layia glandulosa C. F. Baker 1910-4-9 16 Contra Costa Antioch Comment
  CAS-BOT-BC321082  Layia glandulosa C. F. Baker 1909-5-20 s.n. Contra Costa Antioch Comment
  JEPS68959  Layia glandulosa Edward Lee 1935-3-10 1291 Contra Costa e Antioch Comment
  UC30632  Layia glandulosa J. Burtt Davy 1895-4-7 878 Contra Costa Antioch Comment
  UC468861  Layia glandulosa W. C. Blasdale 1893-5-13 Contra Costa Antioch Comment
  CAS-BOT-BC327246  Layia hieracioides John Thomas Howell 1940-4-21 15405 Contra Costa Pine Canyon, Mt. Diablo Comment
  CAS-BOT-BC377908  Layia platyglossa L. R. Abrams 1921-5-25 8011 Contra Costa near summit of Mt. Diablo Comment
  CAS-BOT-BC377909  Layia platyglossa J McMurphy 1909-5-22 s.n. Contra Costa Canyon South of Livermore Comment
  OBI48835  Layia platyglossa Lewis S. Rose 1933-4-17 33093 Contra Costa Antioch Comment
  POM53355  Layia platyglossa subsp. platyglossa C. F. Baker 1903-5-28 2874 Contra Costa Antioch. Comment
  UCD63599  Leersia oryzoides Malcolm A. Nobs 1948-9-23 681 Contra Costa Rock Slough, 7 mi. south of Kingston. Comment
  UC692108  Lemna minor Mary L. Bowerman 1933-9-9 2427 Contra Costa n of Curry Canyon (Mount Diablo, Blackberry Spring); Mount Diablo, Blackberry Spring Comment
  CAS-BOT-BC88706  Lepidium acutidens Lewis S. Rose 1933-3-29 33041 Contra Costa Nortonville. Comment
  JEPS111853  Lepidium latifolium A. G. Murdock 2004-5-28 301 Contra Costa Luzon 60 Comment
  UC2070650  Lepidium latifolium Barbara Ertter 2002-8-24 18021 Contra Costa Dunn Creek south of Mount Diablo Mine property on NE base of Mount Diablo. Comment
  UC2070568  Lepidium latipes 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 18572 Contra Costa Long Ridge on west flank of Mount Diablo, near springs and pond on Ginochio property near park boundary. Comment
  JEPS116958  Lepidium latipes var. latipes David Gowen 2008-4-6 841 Contra Costa East of Marsh Creek Road on north side of Camino Diablo Road, near stock pond. Comment
  UC1543052  Lepidium nitidum Donald G. Nelson 1937-3-30 472 Contra Costa s of Byron (on road to Tracy; along railroad tracks paralleling the highway) Comment
  UC480595  Lepidium nitidum Carl Meyer 1928-2-22 292 Contra Costa Mt. Diablo Comment
  JEPS53698  Lepidium nitidum W. L. Jepson 1922-4-16 9601 Contra Costa San Pablo Valley Comment
  JEPS111855  Lepidium nitidum var. nitidum D. G. Kelch 2003-2-7 03 .37 Contra Costa Franklin Canyon 115 Comment
  RSA537663  Lepidium nitidum var. oreganum Barbara Ertter, Jim Jokerst, D. Magney 1989-4-5 8127 Contra Costa SE Contra Costa: alkali sink W and adjacent to Clifton Court Forebay, ca 15 air miles SW of Stockton 0 Comment
  JEPS16599  Lepidium oxycarpum Edward Lee Greene 1888-4-17 Contra Costa Wildcat Creek Comment
  UC2012993  Lepidium oxycarpum Barbara Ertter with Dale Sanders, Dan Norris 1994-3-26 12337 Contra Costa Peyton Hill east of I-680 east of Martinez, south of Waterfront Road, west foot of hill near edge of marsh. Comment
  UCD37376  Leptochloa fusca subsp. uninervia Beecher Crampton 1959-10-19 5467 Contra Costa Contra Costa County, 4 miles south of Brentwood, along Vasco Road, just north of its junction with Mount Diablo Road. Comment
  UCD64056  Leptochloa fusca subsp. uninervia Chandler Jensen 1957-11-7 Contra Costa Vasco road, about 5 mi. south of Brentwood. Comment
  UC2027727  Leptosiphon bicolor Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15507 a Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  CAS-BOT-BC324111  Lessingia glandulifera var. glandulifera T. S. Brandegee 1883-1-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC324112  Lessingia glandulifera var. glandulifera Walter Knight 1965-9-7 1171 Contra Costa Antioch Sand Dunes Comment
  JEPS100183  Lessingia glandulifera var. glandulifera David Gowen 2004-5-11 58 Contra Costa Lime Ridge Open Space; Ridge trail in the N section of the park and S of the water tank Comment
  JEPS100184  Lessingia glandulifera var. glandulifera David Gowen 2003-7-6 s. n. Contra Costa Lime Ridge Open Space; Ridge trail in the N section of the park and S of the water tank Comment
  UCD134065  Lessingia glandulifera var. glandulifera Peter Rubtzoff 1954-9-14 1751 Contra Costa Lower San Joaquin River, E of Antioch. Comment
  JEPS20577  Lessingia pectinata var. tenuipes R. F. Hoover 1940-11-23 4696 Contra Costa 2 mi w Byron Comment
  UC1094039  Lessingia pectinata var. tenuipes Lewis S. Rose 1955-10-17 55185 Contra Costa Antioch Comment
  UC691812  Lessingia pectinata var. tenuipes Mary L. Bowerman 1936-8-25 3535 Contra Costa due w of 1004 point Lime Ridge (and n of the chaparral patch); Mount Diablo, Lime Ridge 228 Comment
  RSA59614  Lewisia rediviva Verne Grant, Alva Grant 1950-5-13 8895 Contra Costa Saddle between N & Meridian peaks, Mt. Diablo. Comment
  CDA39788  Leymus X multiflorus Guise 2014-2-27 PDR# 070 P06223831 Contra Costa El Sobrante, San Pablo Dam Road, East Bay Regional Parks. 0 Comment
  RSA63664  Leymus condensatus Milo S. Baker 1950-5-22 12226 Contra Costa Roadside between Martinez and Pt. Costa Comment
  CAS-BOT-BC272211  Leymus triticoides A. A. Beetle 1941-6-24 1751 Contra Costa Pt. Richmond on San Francisco Bay Comment
  CAS-BOT-BC272212  Leymus triticoides Mary L. Bowerman 1933-9-23 2447 Contra Costa Indian Ceremonial Canyon near spring, Mount Diablo Comment
  SEINET10595891  Leymus triticoides Frank W. Gould 1941-5-8 Gould 1290 Contra Costa Wastelands along Bay at Winehaven (near Richmond). Comment
  RSA0029782  Lilaea scilloides Barbara Ertter, Alan Prather 2003-6-7 18191 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, pond NE of main trailhead. Comment
  UC1261904  Lilaeopsis masonii A. Q. Howard 1977-8-24 39 Contra Costa along Stamm property w. of Sardis property (Little Corral) Antioch Dunes Comment
  UC971814  Limnanthes douglasii subsp. rosea Annetta Carter 1941-4-27 1635 Contra Costa 3 mi se Byron Comment
  UC1949286  Limnanthes douglasii subsp. rosea Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 Contra Costa sink W and adjacent to Clifton Court Forebay, ca 15 airmiles SW of Stockton Comment
  UCD170113  Limnobium laevigatum R. Breckenridge; K. Filippini 2010-10-1 s.n. Contra Costa Sacramento/San Joaquin Delta. Bradford Island. Comment
  JEPS20265  Limonium californicum W. L. Jepson 1922-7-9 9730 Contra Costa Richmond Comment
  UC691640  Linanthus bicolor Mary L. Bowerman 1931-3-29 619 Contra Costa East Cave Point Ridge; Mount Diablo Comment
  CDA33832  Linanthus ciliatus D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .108 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  UC1051490  Linanthus liniflorus Herbert L. Mason 1952-4-14 14265 Contra Costa 3.5 mi s Byron Comment
  JEPS123332  Linanthus parviflorus David Gowen with Chris Thayer 2010-4-30 1090 Contra Costa North of Briones Reservoir. Rocky area on hill above Oursan Trail just west of its junction with Hampton Trail. Comment
  UC2062654  Linum usitatissimum Barbara Ertter 2004-4-25 18367 Contra Costa Coulter Pine Trail on north side of Mount Diablo State Park. Comment
  JEPS112261  Lithophragma affine A. G. Murdock 2004-4-30 259 Contra Costa Vaca Canyon Comment
  PASA2233  Lithophragma affine Annetta Carter 1929-3-31 Contra Costa Near Clayton Comment
  UC402493  Lithophragma affine Chestnut and Drew 1889-4-16 Contra Costa Martinez Comment
  UC692420  Lithophragma affine Mary L. Bowerman 1933-4-15 1852 Contra Costa canyon S of Arroyo del Cerro Comment
  UCSB10858  Lithophragma affine Hayes, Judy 1961-3-29 Contra Costa 1 mile W of Danville on Pixie Lane Comment
  CAS-BOT-BC435625  Lithophragma heterophyllum Mary L. Bowerman 1931-3-21 585 Contra Costa Sycamore Canyon Comment
  CAS-BOT-BC435650  Lithophragma heterophyllum John Thomas Howell 1926-3-7 1660 Contra Costa Mt. Diablo near toll gate Comment
  UC1300838  Lithophragma heterophyllum Helen K. Sharsmith 1963-3-3 5193 Contra Costa near Moraga (Las Trampas Canyon E of St. Mary's College) 259 Comment
  UC2028308  Lithophragma heterophyllum Barbara Ertter, Susan D'Alcamo 1998-6-12 16195 Contra Costa East end Bald Ridge Trail W of Prospectors Gap on north side of Mount Diablo summit. Comment
  JEPS111854  Lobularia maritima A. G. Murdock 2004-5-28 304 Contra Costa Luzon 60 Comment
  UC2031413  Lobularia maritima Barbara Ertter with David Gowen 2006-4-14 18666 Contra Costa Lime Ridge Open Space (City of Concord) at NW foot of Mt Diablo, grassland along Ohlone Trail SE of Ygnacio Valley Road Comment
  UC1819053  Logfia filaginoides Barbara Ertter, Chris Thayer 1995-4-25 13994 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Black Hawk Ridge Rd. on north side Black Hawk Ridge. 548 Comment
  UC912261  Logfia filaginoides Lucile Mason 1934-4-8 Contra Costa Marsh Creek- Livermore Road; Curry Creek 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
  JEPS111757  Logfia gallica D. G. Kelch 2005-5-13 05 .238 Contra Costa Martinez Martinez. South of oil refinery along Railroad tracks in fragment of habitat 28 Comment
  UCD38198  Logfia gallica Beecher Crampton 1950-6-20 595 Contra Costa 1 mile north of Richmond. Triangle Court. Comment
  CHSC21628  Lolium multiflorum Willis Ball 1975-4-19 524 Contra Costa Contra Loma Regional Park. In area #1. Immediately to the s side of the main parking lot at the s end of the lake. 33 Comment
  UC691200  Lolium multiflorum Mary L. Bowerman 1935-5-16 3003 Contra Costa Russelman Park Road at Gregory Ranch junction; Mount Diablo 289 Comment
  UC1948974  Lolium perenne William J. Ferlatte, L. Maynard Moe 1970-4-27 1253 Contra Costa San Francisco Bay: Red Rock Island Comment
  CAS-BOT-BC269051  Lolium perenne Mary L. Bowerman 1935-5-3 2967 Contra Costa Mount Diablo. Sloan Road 487 Comment
  CAS-BOT-BC269052  Lolium perenne D. E. Breedlove 1971-5-14 19340 Contra Costa Along Sierra Vista Way, Lafayette Comment
  UC2028090  Lomatium californicum Barbara Ertter, Tony Morosco 1998-4-12 16000 Contra Costa Base of Mount Olympia on north side of Mount Diablo, NE of Olympia Trail. Comment
  UC2027938  Lomatium caruifolium Barbara Ertter with Tony Morosco and other CNPS members 2001-5-6 17624 Contra Costa Northwest flank of Mount Diablo, Globe Lily Trail paralleling Mitchell Canyon Road. Comment
  UC196245  Lomatium caruifolium var. caruifolium Edw. L. Greene 1889-3-23 Contra Costa near Byron 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
  JEPS13006  Lomatium utriculatum Rimo Bacigalupi with G. T. Robbins and Keith Harrison 1955-5-6 5063 Contra Costa in hills opposite;Hilltop W of Arlington Avenue, opposite Mira Vista Country Club El Cerrito 198 Comment
  UC691471  Lomatium utriculatum Mary L. Bowerman 1930-6-5 260 Contra Costa 5.8 mi from North Gate (North Road); Mount Diablo 457 Comment
  SEINET7879187 Image available Lomatium utriculatum C. M. Belshaw 1936-1 2105 Contra Costa Tassajera Rd, 1 miles S. of summit Sec. 16 T. 1 S. R. 1E. Comment
  JEPS12847  Lonicera hispidula var. vacillans W. L. Jepson 1894-10-1 Contra Costa towards Redwood Peak; Moraga Valley Comment
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Aug 9 2011
  CAS-BOT-BC241409  Lonicera japonica Walter Knight; Irja Knight; J. T. Howell; E. McClintock 1978-9-5 3221 Contra Costa Browns Island, old habitation site at west end of island Comment
  UC691485  Lonicera subspicata var. denudata Mary L. Bowerman 1931-6-4 922 Contra Costa summit Mount Diablo (on n face) Comment
  UC1050946  Lonicera thibetica N. Floy Bracelin 1942-8-9 2245 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1051339  Lophospermum erubescens N. Floy Bracelin 1941-6-15 1389 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  RSA720794  Lotus corniculatus Barbara J. Ertter, Kristin Ertter 1995-7-11 14473 Contra Costa Sulfur Srping on Pine Cr., Diablo Foothills Regional Park SWof Walnut Creek. 122 Comment
  UC692569  Lotus crassifolius var. crassifolius Mary L. Bowerman 1931-5-16 862 Contra Costa Meridian Peak summit Mount Diablo Comment
  UC692527  Lotus micranthus Mary L. Bowerman 1932-4-9 1325 Contra Costa Inner Black Hills, s spur on meridian Mount Diablo Comment
  UC1129013  Lotus purshianus var. purshianus C. M. Belshaw 1936-5-13 2123 Contra Costa n of Horse Valley; Mt. Diablo Quad. 121 Comment
  CDA28972  Lotus scoparius D. G. Kelch, Suzanne Latham, Matt Beyers 2009-6-3 9 .331 Contra Costa East Bay.; El Sobrante Ridge at end of Silver Belt Dr. on Miocene chert outcrop. Comment
  UC692270  Lotus scoparius Mary L. Bowerman 1932-9-24 1589 Contra Costa ridge running w from Twin Peaks; Mount Diablo 335 Comment
  JEPS116857  Lotus strigosus David Gowen 2007-4-13 673 Contra Costa On dirt road junction (Ridge Trail) between Castle Rock Recreation Area and Borges Ranch. Comment
  POM300705  Lotus wrangelianus Mary L. Bowerman 1933-5-2 1949 Contra Costa Below Pioneer Camp; Mount Diablo. 762 Comment
  UC1223414  Lotus wrangelianus Joseph P. Tracy 1933-5-31 12435 Contra Costa back of El Cerrito 152 Comment
  UC149913  Lupinus affinis Katharine Brandegee 1911-7-6 Contra Costa along the RR near Point Isabel; along the RR near Point Isabel Comment
  UC127542  Lupinus albifrons H. P. Chandler 1900-3-24 586 Contra Costa Briones Hills Comment
  UC2042499  Lupinus albifrons Barbara Kelly 2011-4-18 Contra Costa Tilden Regional Park, along Lomas Cantadas Rd., on a steep, rocky slope above the road. Comment
  UC764598  Lupinus albifrons Robert F. Hoover 1935-3-10 300 Contra Costa Antioch Comment
  SEINET11071663 Image available Lupinus albifrons Lewis S. Rose 1935-5-16 35162 Contra Costa Mt. Diablo Comment
  UC1129295  Lupinus albifrons var. albifrons C. M. Belshaw 1936-5-8 2059 Contra Costa 2.25 mi e Clayton; Mt. Diablo quad 381 Comment
  UC692521  Lupinus albifrons var. albifrons Mary L. Bowerman 1931-4-25 785 Contra Costa between junction of one-way roads and top Meridian Peak summit (Mount Diablo); , Meridian Peak summit 1158 Comment
  UC864974  Lupinus albifrons var. albifrons Lewis S. Rose 1935-5-16 35162 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC201376  Lupinus albifrons var. albifrons Charles Piper Smith 1922-4-14 3483 Contra Costa Antioch - Santa Fe Comment
  UC1999842  Lupinus arboreus Charles M. Belshaw 1935-5-30 946 Contra Costa Island route about 15 miles north of Antioch Bridge Comment
  JEPS12793  Lupinus benthamii Rimo Bacigalupi with G. T. Robbins 1955-5-4 4985 Contra Costa along Santa Fe railroad right-of-way paralleling the Orwood road on the Orwood Tract close to its crossing Indian Slough (San Joaquin River delta region); , crossing Indian Slough 6 Comment
  JEPS73601  Lupinus bicolor L. R. Heckard 1971-4-22 2497 Contra Costa along railroad grade near highway 80 crossing e Pinole; e of Pinole Comment
  UC15944  Lupinus bicolor Brewer 1862-5-23 1149 Contra Costa Mt. Diablo Comment
  UCD107322  Lupinus bicolor L. S. Smith 1916-5-10 s.n. Contra Costa Grand View Terrace - m. Richmond. Comment
  UCD151190  Lupinus chamissonis James A. Neilson Jr. 1974-8-13 3024 Contra Costa west end of Bradford Island. (Elevation estimated using Google Earth by label maker.) 0 Comment
  JEPS103668  Lupinus concinnus David Gowen 2003-5-15 Contra Costa Black Diamond Mines Regional Preserve, Chaparral Loop Trail 304 Comment
  POM23955  Lupinus densiflorus var. aureus Harriet Ann Walker 1911-7-8 2526 Contra Costa Near Point Isabel, east shore of San Francisco Bay. Comment
  CDA6113  Lupinus formosus D. G. Kelch 2007-5-12 7 .289 Contra Costa Carquinez Strait; Franklin Ridge, S of Hwy 4 at McEwen Rd. Comment
  JEPS100071  Lupinus formosus var. formosus A. Langston 2003-6-23 AL 53 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CDA15261  Lupinus microcarpus G. F. Hrusa, D. Crowe 1998-5-8 14392 Contra Costa Sacramento Delta; E end of Dow Chemical property in Pittsburg. Comment
  UC155195  Lupinus microcarpus var. microcarpus Katharine Brandegee 1907-5-5 Contra Costa Antioch 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
  UC201025  Lupinus microcarpus var. microcarpus Katharine Brandegee 1918-6-16 Contra Costa El Dorado St. Richmond Annex (Richmond Annex); , El Dorado St. Comment
  SBBG45227  Lupinus microcarpus var. microcarpus Leota Davidson 1966-5-2 335 Contra Costa Hwy 24 near Claremont Hotel, Berkeley hills Comment
  UC2028120  Lupinus nanus Barbara Ertter with Richard K. Brummitt 1998-5-6 16089 Contra Costa Lower Donner Canyon Road on north base of Mount Diablo, ca 1/2 miles south of Donner cabin site. Comment
  RSA120097  Lupinus nanus subsp. nanus L. D. Christenson 1935-4-11 78 Contra Costa East of Mt. Diablo. Comment
  RSA128342  Lupinus nanus subsp. nanus Peter H. Raven 1950-3-12 1427 Contra Costa Happy Valley Road, 3.8 miles above junction with Upper Happy Valley Road. Comment
  POM194558  Lupinus polycarpus Y. Mexia 1939-4-21 2378 Contra Costa Moraga Valley Comment
  UC2028483  Luzula comosa Barbara Ertter 1998-5-3 16040 Contra Costa SW fork of Pine Creek between Pine Ridge and Wall Point Ridge, southwest base of Mount Diablo Comment
  JEPS67204  Luzula macrantha W. L. Jepson 1943-4-24 20761 Contra Costa Vicinity San Francisco Bay, Oakland Hills, Moraga Ridge Comment
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Jan 25 2008
  JEPS120275  Lychnis coronaria Barbara Ertter 2012-10-27 21293 Contra Costa entrance gate to Golf Course Trail in Tilden Regional Park 370 Comment
  UC692631  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
  JEPS116748  Lythrum californicum David Gowen 2006-8-9 660 Contra Costa Mt. Diablo State Park at Lower Moses Rock Spring. Comment
  RSA0014823  Lythrum californicum David Gowen 2006-8-9 660 Contra Costa Mount Diablo State Park at Lower Moses Rock Spring. Comment
  UCD102995  Lythrum californicum Herbert L. Mason 1955-7-14 14636 Contra Costa 1/2 mile E of Antioch Bridge. Comment
  JEPS112520  Lythrum hyssopifolia D. G. Kelch 2003-6-22 03 .90 Contra Costa Rodeo - Lone Tree Point 2 Comment
  UC692629  Lythrum hyssopifolia Mary L. Bowerman 1932-8-27 1522 Contra Costa s of Turtle Rock (w of the willows, Mount Diablo); Mount Diablo Comment
  UC692637  Lythrum hyssopifolia Mary L. Bowerman 1930-6-28 391 Contra Costa Mount Diablo, Lower Silver Spring Lower Silver Spring; Mount Diablo, Lower Silver Spring Comment
  UCD150881  Lythrum hyssopifolia James A. Neilson Jr. 1972-11-2 3617 Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 1 Comment
  JEPS100179  Madia elegans A. Langston 2003-7-9 AL 62 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD102388  Madia elegans Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. North Peak Road to North Peak. 1000 Comment
  CDA8239  Madia exigua D. G. Kelch, A. G. Murdock 2004-5-9 4 .205 Contra Costa Carquinez Strait Region; Crockett - Upper Edwards Canyon above Crockett Boulevard. Comment
  JEPS111759  Madia exigua D. G. Kelch 2005-5-13 05 .257 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Area along Vista Road ~ 2.5 kiloms West of Martinez 45 Comment
  UC89384  Madia exigua Katharine Brandegee June 1892 Contra Costa Port Costa Comment
  CDA8360  Madia gracilis D. G. Kelch, A. G. Murdock 2004-4-25 4 .119 Contra Costa Carquinez Strait; W of Martinez along Carquinez Scenic Dr. Comment
  CHSC114300  Madia gracilis D. G. Kelch; D. A. Weinstein 2011-5-28 11 .540 Contra Costa Carquinez Strait Region.: W. of Martinez. N of end of Hillside Pl. 183 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
  UC517457  Madia gracilis John Thomas Howell 1933-5-14 11266 Contra Costa hills e St. Mary's College Comment
  CAS-BOT-BC342983  Madia gracilis John Thomas Howell 1931-5-12 6484 Contra Costa North side of Mt. Diablo Comment
  SD8608  Madia radiata Katherine Curran Unknown Contra Costa Antioch Comment
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Jan 9 2007
  UC1069903  Madia sativa H. S. Yates 1934-9-2 4076 Contra Costa 1 1/2 mi nw Orinda; Concord Quad. Comment
  CAS-BOT-BC343579  Madia sativa David D. Keck 1941-6-5 5310 Contra Costa Berkeley Hills, Fish Creek Road, 1/4 mi. W. of East portal of Broadway Tunnel 335 Comment
  CAS-BOT-BC206334  Malacothamnus fremontii John Thomas Howell; T. H. Kearney 1950-7-5 26635 Contra Costa Nortonville. Comment
  SD70001  Malacothamnus fremontii Darley F. Howe 1968-5-20 4515 Contra Costa Nortonville. Comment
  SDSU7507  Malacothamnus fremontii D. F. Howe 1968-5-20 4515 Contra Costa Comment
  UC2029010  Malacothamnus fremontii Barbara Ertter with Dan Norris 1999-11-14 16853 Contra Costa Black Diamond Mines Regional Preserve, chaparral patch below east half of Miners Trail. Comment
  UC311568 Image available Malacothamnus hallii H. M. Hall and F. M. Essig 1916-5-30 10131 Contra Costa w side n Pine Canyon; Mt. Diablo; Mt. Diablo, Contra Costa Co. Comment
  SEINET10680800 Image available Malacothamnus hallii Harvey M. Hall 1916-5-30 Hall 301 Contra Costa Mt. Diablo. On the westerly side north of Pine Canon, Upper Sonoran Zone. Growing on stony south slope, associated with Artemisia californica, Salvia mellifera, Mimulus glutinosus, and Lofus glaber, and with thickets of Adenostoma fasciculatum near by. 275 Comment
  SEINET10853324 Image available Malacothamnus hallii John Thomas Howell 1931-5-12 Howell 6470 Contra Costa Nortonville. Comment
  JEPS36614  Malacothrix coulteri R. F. Hoover 1935-3-10 382 Contra Costa Kirker Pass Comment
  UC691449  Malacothrix floccifera Mary L. Bowerman 1935-6-1 3105 Contra Costa e of Mitchell-Pine divide (second small ridge, bottom of s face); Mount Diablo 975 Comment
  UCD150879  Malva nicaeensis James A. Neilson Jr. 1972-11-2 3619 Contra Costa Walnut Creek drainage. Elevation estimated in Google Earth by label maker. 1 Comment
  POM300651  Malva nicaeensis Mary L. Bowerman 1938-5-25 3631 Contra Costa North Road at Arroyo del Cerro: Weedy place where bank joins first bottom (7 ft. from stream). 110 Comment
  CDA15229  Malva parviflora G. F. Hrusa, D. Crowe 1998-5-8 14358 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg. Comment
  UC2062656  Malva pseudolavatera Barbara Ertter with Delia Taylor 2003-6-22 18230 Contra Costa Black Diamond Mines Regional Preserve south of Pittsburg, corporate yard for park headquarters on E side Somerville Road. Comment
  JEPS77008  Marah fabacea Robert M. Lloyd 1963-3-17 2136 Contra Costa 0.5 mi e Grizzly Peak Road (on Skyline Drive (across from 7090 Skyline), Huckleberry trail) Comment
  JEPS81140  Marah fabacea Edward Lee with Annetta Carter 1936-2-9 1747 Contra Costa 5.6 mi from Perkins Canyon road (Marsh Creek Road) Comment
  CDA37959  Marah oregana Andrew Murdock, D. G. Kelch 2005-3-21 391 Contra Costa Carquinez Strait Region; South of Cumming s Skyway & about 1 km east of I-80. Comment
  CHSC23343  Matricaria discoidea Willis Ball 1975-3-26 507 Contra Costa Contra Loma Regional Park. In area #1. All around the restroom facilities at s end of lake. 30 Comment
  JEPS37068  Matricaria discoidea W. L. Jepson 1922-5-18 9647 Contra Costa Berkeley Comment
  CDA29088  Medicago arabica D. G. Kelch 2006-5-7 6 .15 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  UC1197429  Medicago polymorpha Joseph P. Tracy 1934-4-30 13190 Contra Costa between Lafayette and Moraga 152 Comment
  CAS-BOT-BC271224  Melica californica Mary L. Bowerman 1935-4-22 2883 Contra Costa Ridge west of Pioneer Road west of Stage Road, Mount Diablo 853 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
  JEPS99555  Melica californica Mary Bowerman 1991-5-21 Contra Costa Mount Diablo, Jim White Trail [Deer Flat Rd.]. South side of Juniper-Moses Rock Trail near Deer Flat junction. Comment
  POM300624  Melica californica Mary L. Bowerman 1935-5-25 3070 Contra Costa Meridian Peak south of the summit (east of the hairpin turn on road). Mount Diablo. 1067 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
  UC1055813  Melica californica Frank W. Gould 1941-4-20 1282 Contra Costa near Richmond 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
  SEINET186052 Image available Melica imperfecta Virginia E. Long 1933-6-14 221 a Contra Costa Mt. Diablo On slope SE-E along first west fork rom Curry Creek Trail. 335 Comment
  UC691221  Melica imperfecta Mary L. Bowerman 1932-3-12 1120 Contra Costa Alamo Canyon Mount Diablo (near trail) 365 Comment
  UC692463  Melica imperfecta Mary L. Bowerman 1935-5-3 2956 Contra Costa hillside below Jungle of the Garden Gods (Fossil Ridge (Rock City Ridge)); Mount Diablo, Fossil Ridge (Rock City Ridge) 457 Comment
  UC692464  Melica imperfecta Mary L. Bowerman 1931-4-18 714 Contra Costa Sycamore Canyon; Mount Diablo 335 Comment
  UCD87871  Melica imperfecta P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  POM257058  Melica imperfecta var. refracta Virginia Long 1933-6-14 221 a Contra Costa Mt. Diablo. On slope SE-E along first west fork from Curry Creek Trail. Comment
  RSA756399  Melica torreyana Barbara Ertter, John Little 1989-4-2 8111 Contra Costa Hillside park in El Cerrito, +/- undisturbed vegetation on steep west-facing slope Comment
  SEINET1910265  Melica torreyana Barbara Ertter, John Little 1989-1 8111 Contra Costa Hillside Park in El Cerrito, +/- undisturbed vegetation on steep W facing slope Comment
  SEINET3449596  Melica torreyana Dean G. Kelch, Andrew G. Murdock 2003-3-21 DGK 3 .055 Contra Costa Martinez West, Martinez West, Ozol Rock and Scenic Drive 40 Comment
  UC162940  Melica torreyana C. F. Baker 1903-4-28 2815 Contra Costa Mitchell's Canyon; Mt. Diablo Comment
  UC2028402  Melica torreyana Barbara Ertter with Christopher Baysdorfer 1998-5-10 16122 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, quarry area on west side Comment
  UC53661  Melica torreyana J. Burtt Davy Apr 1897 Contra Costa Point Isabel Comment
  UC691175  Melica torreyana Mary L. Bowerman 1935-5-22 3044 Contra Costa canyon at n end which heads into saddle w of Twin Peaks Eagle Pt Ridge; Mt. Diablo 350 Comment
  JEPS128777  Melilotus albus Kevin Hintsa 1999-8-17 Contra Costa Mount Diablo State Park, Pine Canyon in flats adjacent to willow forest. Comment
  POM181458  Melilotus indicus I. L. Wiggins 1930-4-18 4599 Contra Costa Jersey Island Comment
  UC634868  Melissa officinalis H. L. Mason 1925-9-17 2235 Contra Costa stream in Redwood Canyon Redwood Canyon Comment
  OBI13670  Melissa officinalis G. Thomas Robbins 1959-8-1 4115 Contra Costa Las Trampas Crk, about 1.5 mi SE of St. Marys College 183 Comment
  UC1584858  Mentha aquatica Jerry Powell 1987-9-15 1523 Contra Costa Point Molate; marshy area at creek mouth to beach Comment
  UC1619954  Mentha spicata Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10718 Contra Costa Browns Isl. n Pittsburg (near confluence of Sacramento & San Joaquin rivers, w.-most point opposite Pittsburg marina); Browns Isl. Comment
  RSA0033935  Mentha spicata var. spicata Barbara Ertter, Mary L. Bowerman 1996-11-1 15394 Contra Costa North base of Mount Diablo, downstream from Mitchell Canyon parking lot. 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
  UC692698  Mentzelia dispersa Mary L. Bowerman 1930-6-10 305 Contra Costa Mount Diablo, Summit Comment
  UCD117222  Mentzelia dispersa P. B. Kennedy 1916-5-21 s.n. Contra Costa between Diablo and summit. Comment
  RSA720796  Mentzelia dispersa Mary L. Bowerman 1978-6-3 s.n. Contra Costa Mount Diablo. Between lower summit parking lot and road. Comment
  UC672665  Mentzelia micrantha H. L. Mason 1928-4-29 4435 Contra Costa Mount Diablo, Sycamore Canyon Comment
  JEPS111949  Mercurialis ambigua D. G. Kelch 2004-4-3 04 .44 Contra Costa Crockett - Edwards Canyon Rare weed at nursery at Edwards Creek Staging Area (EBRPD) near barn. 24 Comment
Read comments
Jun 14 2011
  JEPS100177  Micropus californicus G. Smick 2003-4-29 GAS 149 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS40629  Micropus californicus var. californicus W. L. Jepson 1923-4-22 9877 Contra Costa Mt. Diablo Comment
  UC88386  Micropus californicus var. californicus T. S. Brandegee May 1886 Contra Costa Antioch Comment
  CAS-BOT-BC348364  Micropus californicus var. californicus Paul F. Covel 1939-5-1 s.n. Contra Costa Somersville, east of Clayton Comment
  UC1795832  Micropus californicus var. californicus Barbara Ertter, Lisa Schultheis 1995-4-27 14003 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; northwest side of open grassy ridge at end of Arbolado Dr. 121 Comment
  UCSC007192  Microseris Randall Morgan 1989-5-5 1588 Contra Costa Mitchell Cyn trail, W entrance, Mount Diablo Comment
  UC2028327  Microseris douglasii Barbara Ertter with Richard K. Brummitt 1998-5-13 16138 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, head of SE branch of Loughler Loop Trail. Comment
  CAS-BOT-BC348884  Microseris douglasii subsp. douglasii A. A. Heller 1908-4-17 8901 Contra Costa Hills three miles south of Antioch 18 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
  RSA72855B  Microseris douglasii subsp. douglasii A. Kellogg, W. G. W. Harford 1869-4-8 579 Contra Costa Antiock [Antioch] Comment
  CAS-BOT-BC348887  Microseris douglasii subsp. douglasii Mary L. Bowerman 1933-5-8 2008 Contra Costa Mount Diablo. Fossil Ridge, south face, not far from but out of sight of South Entrance 289 Comment
  SEINET10761171  Microseris douglasii subsp. douglasii Barbara J. Ertter, Stu Garrett 1997-3-29 Ertter 15527 Contra Costa West side Mount Diablo, Burma Road on Long Ridge, serpentine area (already drying out after 2 months without rain). Comment
  UC1795746  Microseris douglasii subsp. douglasii Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14241 Contra Costa South side Mount Diablo, edge of open meadow in flats near head of Curry Creek along road to Sheepherders Springs from Sloan Road, clay soil. 426 Comment
  UC2027851  Microseris douglasii subsp. douglasii Barbara Ertter with Stu Garrett 1997-3-29 15527 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  JEPS88684  Microseris douglasii subsp. tenella Edw. L. Greene March, 1889 Contra Costa Byron Comment
  UC70182  Microseris douglasii subsp. tenella J. Burtt Davy May 1898 Contra Costa Danville Mount Diablo Region Comment
  POM181472  Microseris douglasii subsp. tenella I. L. Wiggins 1930-4-17 4560 -a Contra Costa One mile east of Mountain House, on road to Byron. Comment
  JEPS18256  Microseris elegans Peter H. Raven with Mason, Stone, Ornduff, Kuijt 1957-4-4 10580 Contra Costa 3.0 mi s Byron Comment
  JEPS36177  Microseris sylvatica W. L. Jepson 1918-6-3 7590 Contra Costa Donner Canyon Mt. Diablo 304 Comment
  JEPS116945  Microseris sylvatica David Gowen 2008-4-16 861 Contra Costa West end of Horse Valley. Comment
  UCD118913  Microsteris gracilis Laurence S. Jones 1934-4-8 s.n. Contra Costa West slopes of Mt. Diablo. 609 Comment
  JEPS100144  Mimulus aurantiacus G. Smick 2003-3-13 GAS 66 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  LA209141  Mimulus aurantiacus H. Lewis; 1940-7-5 sn Contra Costa E of Berkeley Comment
  RSA15451  Mimulus aurantiacus var. aurantiacus J. T. Howell 1936-4-19 s.n. Contra Costa Nortonville Comment
  RSA408851  Mimulus constrictus Anstruther Davidson 1917-7-1 3279 Contra Costa Top Mt. Diablo. Comment
  UC691570  Mimulus douglasii Mary L. Bowerman 1932-2-28 1097 Contra Costa w Blackberry Spring; Mount Diablo 609 Comment
  UC1050851  Mimulus guttatus N. Floy Bracelin 1941-5-25 1321 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC193602  Mimulus latidens M. K. Curran May 1886 Contra Costa Antioch Comment
  UC27034  Mimulus latidens W. H. Brewer 1862-5-26 1161 Contra Costa near Mt. Diablo; ; near Mt. Diablo Comment
  UC725862  Mimulus nasutus A. A. Heller 1942-4-12 Contra Costa 2 mi n Blue Tent Creek Comment
  JEPS2966  Mimulus rattanii Mary L. Bowerman 1933-5-31 2222 Contra Costa Juniper Camp Mount Diablo 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
  UC2070482  Minuartia douglasii Gregg Weber 2004-3-23 Contra Costa Briones Reservoir a little east of Hampton Road. Comment
  UC692304  Moehringia macrophylla Mary L. Bowerman 1931-5-16 861 Contra Costa on n side Mount Diablo summit; Mount Diablo summit on n side Comment
  RSA135441  Monardella douglasii Volney Rattan 1886-6-14 s.n. Contra Costa Mt. Diablo Comment
  UC2070470  Monardella douglasii Barbara Ertter with John Ginochio 2002-6-1 17941 Contra Costa Ginochio Ranch in Arroyo del Cerro on NW side of Mount Diablo, connector road between Government Road and Olofson Homestead. Comment
  CHSC67994  Monardella villosa subsp. villosa James D. Jokerst 1987-6-16 2915 Contra Costa Livermore Valley, 0.3 mi W of Vasco Rd. and +/- 200 m SW of a dirt track. Comment
  SEINET892705  Monardella villosa subsp. villosa Alice Eastwood 1915-1 4743 Contra Costa San Leandro, Contra Costa County. Comment
  JEPS108222  Monolopia gracilens David Gowen 2005-5-6 278 Contra Costa Mt. Diablo State Park. Prospectors Gap Rd. ca 1/4 mile east of Prospectors Gap. Comment
  UC2031460  Monolopia gracilens Barbara Ertter with David Gowen 2014-4-12 21715 Contra Costa Ridge on north side of Prospectors Gap Road, ca 1 mile east of Mount Diablo summit Comment
  CAS-BOT-BC349611  Monolopia major Ethel Crum 1936-4-6 1741 Contra Costa Two miles west of Byron 45 Comment
  UC629740  Monolopia major Ethel Crum 1939-3-19 2083 Contra Costa 2 mi w Byron 45 Comment
  UC697148  Monolopia major Mary L. Bowerman 1933-5-25 2196 Contra Costa e of saddle Osyter Ridge; Mount Diablo 396 Comment
  CAS-BOT-BC349607  Monolopia major Ira L. Wiggins 1930-4-17 4563 Contra Costa 1 mi. east of Mountain House on road to Byron Comment
  CAS-BOT-BC349612  Monolopia major Brandegee No date on label s.n. Contra Costa Antioch Comment
  POM181484  Monolopia major I. L. Wiggins 1930-4-17 4584 Contra Costa 1/4 mi. S. of Byron. Comment
  JEPS68945  Montia fontana Edward Lee 1935-2-10 1273 Contra Costa Wildcat Creek Berkeley, Berkeley Hills Comment
  UC1606312  Montia fontana Barbara Ertter, Chris Thayer 1993-5-7 11691 Contra Costa 1/2 mi se of Inspiration Point (on Wilcat Canyon Road, East Bay Municipal Utilities District land e of Tilden Park); Hopkins Spring, East Bay Municipal Utilities District land 304 Comment
  UC1607685  Montia fontana Barbara Ertter, Lynne Hosley 1993-4-17 11511 Contra Costa Morgan Territory 10 air mi n of Livermore (in lee of Mount Diablo, s of Hummingbird trail,); Morgan Territory 609 Comment
  UC692019  Montia fontana Mary L. Bowerman 1939-3-31 3736 Contra Costa Spring in bend of road to Barbecue Terrace ((off South Road), Mount Diablo); Mount Diablo Comment
  UC1101358  Myosurus Herbert L. Mason 1952-3-13 14200 A Contra Costa 3.3 mi s Byron Comment
  CAS-BOT-BC83284  Myosurus minimus M. K. Curran 1884-1-1 s.n. Contra Costa Near Antioch. Comment
  UC1731501  Myosurus minimus Dean W. Taylor 1992-4-16 12391 Contra Costa s of Bryon Hot Springs (San Joaquin Valley); San Joaquin Valley 45 Comment
  UC1738083  Myosurus minimus D. E. Stone 1957-2-28 14268 A12 Contra Costa 3 mi S of Byron ( on road to Herdlyn) Comment
  CDA19208  Myriophyllum spicatum Mangini, Whitlock 2001-4-3 PDR 041588 Contra Costa at SW corner of Contra Loma Park, East Bay Regional park, Antioch. 0 Comment
  UC2031468  Myriophyllum verticillatum Barbara Ertter with Brad Olson 1991-9-28 10837 Contra Costa San Pablo Reservoir between Orinda and El Sobrante 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
  CHSC106698  Najas guadalupensis Barbara Ertter; Brad Olson 1991-9-28 10838 Contra Costa San Pablo Reservoir between Orinda and El Sobrante, in shallow water at S end of reservoir. 91 Comment
  JEPS102918  Narcissus tazetta Barbara Ertter 1998-1-25 15910 Contra Costa so of Donner Canyon trailhead (Back Canyon Rd.); Mount Diablo Comment
  CDA28809  Nassella cernua D. G. Kelch, Jessica Kolman 2009-5-3 9 .315 Contra Costa Carquinez Strait; Crockett; on hill south of 5th St. with transmission tower on sandstone outcrop. Comment
  POM264922  Nassella cernua A. A. Beetle 1941-3-28 1718 Contra Costa Orinda Comment
  JEPS116788  Nassella lepida David Gowen 2006-6-14 612 Contra Costa Morgan Territory Regional Park; At the NW end of Eagle Trail. Comment
  POM295472  Nassella pulchra Lyman Benson 1935-3-16 6285 Contra Costa Mt. Diablo, Watershed: Walnut Creek; Mountain Range: Mt. Diablo. 305 Comment
  UC691269  Nassella pulchra Mary L. Bowerman 1933-5-8 2030 Contra Costa n Rock City (s-facing slope); Mount Diablo Comment
  UCD87531  Nassella pulchra Frank W. Gould 1941-4-20 1281 Contra Costa Near Richmond. Comment
  JEPS105728  Navarretia gowenii David Gowen 2004-6-13 102 Contra Costa Lime Ridge Open Space. Northwest end, ca. 600 feet elev. Comment
  SEINET11268197  Navarretia mellita Barbara Ertter 1998-12-6 16472 Contra Costa Southwest side of Mount Diablo, Wall Point Road just north of Rock City.; 0 Comment
  JEPS116940  Navarretia nigelliformis subsp. radians David Gowen 2008-4-21 867 Contra Costa South of Antioch, in Contra Loma Regional Park off Frederickson Lane. North, to northwest facing slope just NW of parking area for Black Diamond Mines Regional Preserve. Comment
  UCR197895  Navarretia pubescens Beecher Crampton 1949-9-11 493 Contra Costa Mount Diablo State Park, below main road, opposite Oak Knoll Picnic area 518 Comment
  UCD32434  Navarretia pubescens Beecher Crampton 1950-7-2 599 Contra Costa Contra Costa County, north base of Mt. Diablo, Mitchell Creek Canyon, south side but northen exposure. 259 Comment
  UCD36029  Navarretia squarrosa Beecher Crampton 1949-7-10 476 Contra Costa Contra Cost County, along road in pass through Sobrante Ridge, road from valley of San Pablo to Martinez and Pinole, above Sheldon School. 106 Comment
  CDA29222  Nemophila heterophylla D. G. Kelch 2006-5-7 6 .152 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  JEPS111826  Nemophila heterophylla D. G. Kelch 2005-5-1 05 .182 Contra Costa Crockett - Edwards Canyon 150 Comment
  UC1021937  Nemophila heterophylla Rolf Y. Berg 1955-4-3 Contra Costa Laurel Dell Camp Mt. Diablo State Park; , Laurel Dell Camp Comment
  UC1069152  Nemophila heterophylla R. C. Wilson 1935-3-27 145 Contra Costa 1/2 mi s Cave Pt.; Mt. Diablo Quad., s of Cave Pt. Comment
  UC517550  Nemophila heterophylla John Thomas Howell 1926-3-7 1659 Contra Costa Mt. Diablo near toll gate Mt. Diablo Comment
  UC691705  Nemophila heterophylla Mary L. Bowerman 1933-4-9 1838 Contra Costa w fork , Donner Canyon, w fork (Donner Canyon; Mount Diablo) 243 Comment
  RSA421271  Nemophila heterophylla H. de Forest 1930-4-6 s.n. Contra Costa [No location information on label.] Comment
  RSA75801  Nemophila heterophylla Lincoln Constance 1938-3-22 2031 Contra Costa Edge of Wildcat Canyon on north slope of the Berkeley Hills. 366 Comment
  JEPS100012  Nemophila maculata G. Smick 2003-5-5 GAS 172 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCSB7545  Nemophila menziesii Kamb, Peter; Chisaki, Francia 1950-3-18 Contra Costa Saddle between North and South Peaks of Mount Diablo 883 Comment
  JEPS127095  Nemophila menziesii var. menziesii Lowell Ahart, Josephine Guardino 2016-4-19 20797 Contra Costa 2.3 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Spring USGS 7.5' Quad. Comment
  CAS-BOT-BC515974  Nemophila parviflora var. parviflora Barrett Anderson 1987-4-30 3498 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD 125 Comment
  UC592126  Nemophila pedunculata H. L. Mason 1932-3-20 6841 Contra Costa Antioch sand hills 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
  UC1795825  Nicotiana glauca Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14627 Contra Costa Little Pine Creek at northwest foot of Mt. Diablo, along trail connecting North Gate Road to Castle Rock Road, Diablo Foothills Regional Park; along stream above stable, riparian vegetation. 91 Comment
  CDA3508  Nigella damascena J. de Fremery, C. Beutler 1974-6-18 Contra Costa Brentwood Road at Southern Pacific railroad tracks, Brentwood. 0 Comment
  UC691632  Nuttallanthus texanus Mary L. Bowerman 1938-6-2 3653 Contra Costa Mount Diablo, Dan Cook Canyon, 100 yards n of camp (C.C.C.) Dan Cook Canyon; Mount Diablo, Dan Cook Canyon Comment
  CAS-BOT-BC140359  Oemleria cerasiformis Barrett Anderson 1987-4-30 3506 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD 125 Comment
  SBBG2988  Oemleria cerasiformis H. and M. Dearing 1940-3-19 4123 Contra Costa Tilden Park, Berkeley Comment
  UC691106  Oemleria cerasiformis Mary L. Bowerman 1935-3-16 2734 Contra Costa Peach Tree Springs Rd. Mount Diablo (e fork of canyon) 228 Comment
  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
  UC2028407  Oenanthe sarmentosa Barbara Ertter with Richard K. Brummitt 1998-5-16 16098 Contra Costa Antioch Marina, edge of brackish marsh Comment
  JEPS96237  Oenothera curtiflora Barbara Ertter 1991-9-22 10827 Contra Costa sw El Cerrito (Point Isabel Regional Shoreline); Point Isabel Regional Shoreline Comment
  POM310930  Oenothera deltoides subsp. howellii P. D. Hurd 1952-5-26 s.n. Contra Costa 1 mile east of Antioch in sand dunes, near western margin of San Joaquan River close to its mouth 30 Comment
  UC35411  Oenothera deltoides subsp. howellii J. Burtt Davy 1895-4-7 880 Contra Costa Antioch sandhills Comment
  CAS-BOT-BC171586  Oenothera deltoides subsp. howellii W. M. Klein 1958-6-9 433 Contra Costa Sandhills north of Antioch along the San Joaquin River channel. 1 Comment
  CDA38153  Oenothera deltoides subsp. howellii F. J. Brucato 1962-5-1 s.n. Contra Costa Antioch; Wilbur Ave. 0 Comment
  RSA273285  Oenothera deltoides subsp. howellii Glenn A. Gorelick 1967-5-2 s.n. Contra Costa 1.5 miles east of Antioch Comment
  UC1606354  Oenothera elata Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, and Amy Hiss 1991-8-18 10689 Contra Costa n Pittsburg (near confluence of Sacramento and San Joaquin Rivers, opposite Pittsburg Marina, dry levee near lagoon in center of w end of island); Browns Island 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
  UC615575  Oenothera elata subsp. hookeri Beryl O. Schreiber 1933-10-5 934 Contra Costa marsh Mount Diablo Comment
  JEPS111550  Olea europaea D. G. Kelch 2004-3-5 04 .1 Contra Costa Martinez - Rankin Open Space Rankin Park, Martinez, Contra Costa County, CA 80 Comment
  CAS-BOT-BC502763  Orobanche bulbosa F. T. Bioletti 1894-5-13 s.n. Contra Costa Mount Diablo Comment
  JEPS10855  Orobanche fasciculata W. L. Jepson 1918-6-5 7618 Contra Costa Mount Diablo. North peak. Comment
  UC27861  Orobanche fasciculata W. H. Brewer 1862-6-20 1124 Contra Costa Hill North of Coal Mine, north of Mt. Diablo. Comment
  UC691505  Orobanche fasciculata Mary L. Bowerman 1935-5-16 2995 Contra Costa Mount Diablo. Russelman Park, just south of the north boundary of section 25 (east of gate). Comment
  UC691743  Orobanche fasciculata Mary L. Bowerman 1933-6-7 2255 Contra Costa Mount Diablo. North Peak Ridge, south face. Comment
  UC691744  Orobanche fasciculata Mary L. Bowerman 1935-5-22 3056 Contra Costa Saddle west of Twin Peaks Comment
  UC27898  Orobanche uniflora subsp. occidentalis J. Burtt Davy 1895-4-13 1004 Contra Costa Lafayette. Comment
  POM15646  Orthocarpus attenuatus H. P. Chandler 1901-3-21 843 Contra Costa Concord. Comment
  POM15657  Orthocarpus purpurascens C. F. Baker 1903-4-27 2794 Contra Costa Byron. Comment
  RSA720798  Osmorhiza berteroi Mary L. Bowerman 1975-6-7 s.n. Contra Costa Mount Diablo, Big Spring Comment
  SEINET3840906  Oxalis carnosa Unknown 1976-3-25 2117 Contra Costa International Succulent Institute, 10 Corte Sombrita, between Maraga and Orinda Comment
  UC691357  Packera breweri Mary L. Bowerman 1932-5-6 1427 Contra Costa Mitchell Canyon Mount Diablo 251 Comment
  SEINET9287601  Packera multilobata Unknown 1999-12-20 1219291 Contra Costa Along Wildcat Canyon Rd., 1.9 mi NW of intersection of Wildcat Canyon Rd and Dam Rd. vicinity of Orinda. Comment
  CDA33874  Panicum capillare Diveney, Denijs 2008-9-17 PDR# 1454350 Contra Costa Concord; Contra Costa Canal near Grayson Creek 0 Comment
  UC1818892  Parvisedum pentandrum Barbara Ertter, Mary Bowerman et al. 1995-5-7 14058 Contra Costa Three-Springs Creek open north facing slope around rock outcrops (near creek crossing above woods) with seepage. Comment
  CDA2133  Paspalum dilatatum D. G. Kelch, A. G. Murdock 2003-8-13 3 .112 Contra Costa Carquinez Strait Region; Martinez Marsh. Comment
  CAS-BOT-BC259649  Paspalum dilatatum Virginia I. Dains; Walter Knight 1986-8-8 5498 Contra Costa Contra Costa - San Joaquin Delta Area. Jct Rock S1 and Werner Cut, above high water mark on east facing levee Comment
  UC2028420  Paspalum distichum Barbara Ertter 2000-9-30 17538 Contra Costa West side Mount Diablo, pond on west side of Briones-Mount Diablo TRail south of Stonegate Trail junction Comment
  UC1789178  Passiflora tarminiana Barbara Ertter 1999-9-17 16846 Contra Costa south edge of El Cerrito at northeast base of Albany Hill, edge of paved lot at southwest corner of junction San Pablo Avenue and Carlson Avenue, near Cerrito Creek. Comment
  JEPS10410  Pedicularis densiflora W. L. Jepson 1899-4-19 21287 Contra Costa Las Trampas Ridge Comment
  UC54771  Pedicularis densiflora Joseph P. Tracy 1903-4-18 1801 Contra Costa hills near Berkeley (e slope beyond Bald Peak); San Francisco Bay Region 304 Comment
  UC886639  Pedicularis densiflora Alice Eastwood 1922-3-17 11084 Contra Costa Mount Diablo Comment
  RSA124117  Pedicularis densiflora E. F. Sprague 1956-4-5 1096 Contra Costa Rocky Point, Mt. Diablo. 610 Comment
  NY583786  Penstemon centranthifolius C. F. Baker 1903-4-25 2938 Contra Costa Antioch Comment
  NY583832  Penstemon centranthifolius L. S. Rose 1936-4-24 36158 Contra Costa 3 miles east of Antioch 15.2 Comment
  SBBG26831  Penstemon centranthifolius L. S. Rose 1936-4-24 36158 Contra Costa 3 mi E of Antioch 15 Comment
  UC2028335  Penstemon centranthifolius Barbara Ertter 1991-5-5 9775 Contra Costa Black Diamond Mines Regional Preserve S of Pittsburg, S side of Rose Hill above Nortonville Pass Comment
  RSA101693  Penstemon centranthifolius H. L. Mason 1929-3-31 5156 Contra Costa Along San Joaquin River, Antioch. Comment
  RSA407924  Penstemon heterophyllus subsp. purdyi Cora Mae Life 1923-7-4 92 Contra Costa Mt Diablo. Comment
  JEPS108224  Pentachaeta alsinoides David Gowen 2005-5-6 280 Contra Costa Mt. Diablo State Park. South east end of Prospectors Gap Rd., ca 0.3 mile NW of its junction with Ray Morgan Rd. Small area of serpentine outside of the park boundary. Comment
  CAS-BOT-BC330456  Pentachaeta alsinoides M. K. Curran 1883-5-1 s.n. Contra Costa Foothills of Mount Diablo Comment
  CAS-BOT-BC71614  Pentagramma triangularis D. E. Breedlove 1970-4-18 17426 Contra Costa at the north edge of Lafayette above Laurel Drive 243 Comment
  UC1606429  Perideridia kelloggii Barbara Ertter, Brad Olson 1993-8-8 12203 Contra Costa sw San Ramon; Bishop Ranch Regional Open Space Comment
  UC1613941  Perideridia kelloggii Charles M. Belshaw 1935-6-24 1020 Contra Costa Sobrante Hills Comment
  UC691809  Perideridia oregana Mary L. Bowerman 1936-8-8 3525 Contra Costa Emmons Canyon Mount Diablo (w fork) Comment
  JEPS108289  Phacelia bolanderi David Gowen 2005-5-18 338 Contra Costa Skyline Nat'l Rec. Trail. East of Grizzly Peak Blvd. and north of Claremont/Fish Ranch Rd. Comment
  JEPS1458  Phacelia breweri Mary L. Bowerman 1935-4-26 2898 Contra Costa w Indian Ceremonial Spring; Mount Diablo 1021 Comment
  POM59588  Phacelia breweri Verne Grant, Alva Grant 1950-5-13 8899 Contra Costa South slope of Meridian Peak at junction of road and North Peak Trail, Mt. Diablo. Comment
  UC1795740  Phacelia breweri Barbara Ertter, Tom Delendick 1996-5-2 14611 Contra Costa Mount Diablo State Park, Deer Flat Road north of Juniper Camp, at cut through open live oak forest, northwest-facing slope. 853 Comment
  UC198967  Phacelia breweri H. M. Hall and F. M. Essig 1916-5-31 10140 Contra Costa slopes s summit (type locality); Mount Diablo 1130 Comment
  UC691690  Phacelia breweri Mary L. Bowerman 1933-5-2 1953 Contra Costa below Pioneer Camp; Mount Diablo 762 Comment
  UCD102377  Phacelia breweri Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 960 Comment
  UCD120274  Phacelia breweri P. B. K. 1916-5-1 s.n. Contra Costa Mt. Diablo. Comment
  POM118167  Phacelia breweri H. M. Hall, F. M. Essig 1916-5-31 10140 Contra Costa Mount Diablo, south of the summit. 1130 Comment
  JEPS2229  Phacelia californica R. F. Hoover 1938-2-21 2753 Contra Costa Point Richmond Comment
  POM65595  Phacelia ciliata C. F. Baker 1903-4-26 2904 Contra Costa Byron Comment
  UC1950229  Phacelia ciliata Barbara Ertter 1992-3-8 10910 Contra Costa NE edge of Black Diamond Mines Regional Preserve, NE-heading canyon with steep loose sides ca 1/2 mi W of junction of Stewartville Trail and Fredrickson Lane Comment
  JEPS2024  Phacelia distans W. L. Jepson 1923-4-22 9879 Contra Costa Mt. Diablo Comment
  JEPS73329  Phacelia distans Edward Lee 1935-3-10 1297 A Contra Costa e Antioch; Antioch Sand Dunes Comment
  SEINET3558890 Image available Phacelia distans Lewis S. Rose 1931-5-14 T 19 Contra Costa Mount Diablo. Comment
  UC131485  Phacelia distans C. F. Baker 1903-4-28 2806 Contra Costa Antioch Comment
  UC56706  Phacelia distans Harley P. Chandler 1901-4-5 967 Contra Costa Mt. Diablo Comment
  UC762051  Phacelia distans R. F. Hoover 1937-5-14 2116 Contra Costa Antioch sand-dunes Comment
  UCD102384  Phacelia distans Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 960 Comment
  RSA74783  Phacelia distans F. W. Peirson 1923-7-1 5302 Contra Costa Near summit of Mt. Diablo. Comment
  CAS-BOT-BC6694  Phacelia distans var. australis Charles Fuller Baker 1903-4-28 2806 Contra Costa Antioch Comment
  UC24356  Phacelia douglasii The Postmaster 1900-3-24 Contra Costa Oakley Comment
  RSA170276  Phacelia imbricata subsp. imbricata W. L. Jepson 1918-6-5 7611 Contra Costa North Peak, Mt. Diablo. 945 Comment
  POM300966  Phacelia nemoralis subsp. nemoralis Mary L. Bowerman 1934-4-21 2537 Contra Costa Muir Area. Comment
  CAS-BOT-BC154337  Phacelia phacelioides Alice Eastwood 1921-6-11 s.n. Contra Costa Mt. Diablo Comment
  UC691332  Phacelia phacelioides Mary L. Bowerman 1932-4-16 1343 Contra Costa Eagle Point Mount Diablo (n side) 670 Comment
  CAS-BOT-BC154334  Phacelia phacelioides Lincoln Constance; Carl W. Sharsmith; Howard S. Reed 1940-4-27 2574 Contra Costa Northy of Juniper Camp, Mount Diablo 762 Comment
  UC2028313  Phacelia phacelioides Barbara Ertter, Susan D'Alcamo 1998-6-12 16163 Contra Costa North Peak Trail from Devil's Elbow on SE side of Mount Diablo summit. Comment
  CAS-BOT-BC154355  Phacelia suaveolens Mary L. Bowerman 1933-5-11 2078 Contra Costa Inner Black Hills: West ridge Comment
  CDA40455  Phacelia tanacetifolia D. G. Kelch 2004-4-3 4 .056 Contra Costa Carquinez Strait Region; Crockett-Tormey Headlands, west of the I-80 and Cummings Skyway junction. Comment
  CHSC69643  Phacelia tanacetifolia James D. Jokerst 1989-3-31 3079 Contra Costa Steep mesic hillside with fluffy clay soil E of creek in Brushy Creek Canyon. Comment
  UC2070461  Phacelia tanacetifolia Barbara Ertter with Steve Matson 2003-3-15 18105 Contra Costa Black Diamond Mines Regional Preserve, on SW side of Rose Hill. Comment
  JEPS99585  Phalaris aquatica Mary Bowerman Oct 1996 Contra Costa Mount Diablo, Fire Interpretive Trail. Comment
  UC1101560  Phalaris arundinacea Malcolm A. Nobs 1948-9-23 683 Contra Costa 7 mi s Kingston (Rock Slough); Rock Slough Comment
Read comments
Oct 8 2012
  SEINET7296998 Image available Phalaris arundinacea Malcolm A. Nobs, S. Galen Smith 1949-1 945 Contra Costa Otto's Black Bass Resort, 4 miles north of Kingston. Comment
  JEPS95764  Phalaris brachystachys Dianne Lake 1999-6-11 Contra Costa N-facing hillside E of intersecton of Tassajara and Lawrence Rds., S of Tassajara Rd. San Ramon 225 Comment
  UCD89060  Phalaris minor Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  CDA15237  Phalaris paradoxa G. F. Hrusa, D. Crowe 1998-5-8 14368 Contra Costa Sacramento Delta; Disturbed areas about annual grasslands on Dow Chemical property at Pittsburg. Annual, to 1.5 meters tall. Comment
  UC1818916  Phalaris paradoxa Barbara Ertter, Robert Stebbins 1996-5-14 14669 Contra Costa Tina Baumgartner site in Tilden Regional Park, North side of Golf Course Rd. east of Grizzly Peak Blvd.; annual grassland on hillside subjected to vegetation conversion. Comment
  UCD89359  Phalaris paradoxa Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  SEINET8719258 Image available Phalaris paradoxa Laura Zeller 1965-1 85 Contra Costa Across from the University of California Botanical Garden with Lolium 76 Comment
  UC52449  Phlox gracilis H. M. Hall 1901-3-22 1685 Contra Costa Port Costa San Francisco Bay Region Comment
  RSA755793  Pholistoma membranaceum Barbara Ertter 1992-3-8 10909 Contra Costa NE edge of Black Diamond Mines Regional Preserve, NE-heading canyon with steep loose sides ca. 1/2 mile west of junction of Stewartville Trail and Frederickson Lane. Comment
  CDA22381  Phoradendron macrophyllum D. G. Kelch, A. G. Murdock 2005-5-13 5 .235 Contra Costa Carquinez Strait Region; Martinez. South of oil refinery along railroad tracks in fragment of habitat. Comment
  CDA23776  Phoradendron macrophyllum D. G. Kelch 2007-10-6 7 .633 Contra Costa Carquinez Strait; Fernandez Ranch. Muir Land Trust Property 4.5 km W of Rodeo. Comment
  UC1818974  Phoradendron macrophyllum Barbara Ertter, Lisa Schultheis, Laura Fujii 1995-12-30 14544 Contra Costa Mount Diablo, road to Black Hawk Ridge, open buckeye woodland on north side of ridge. Comment
  CAS-BOT-BC260885  Phragmites australis Doreen Smith 2003-10-25 s.n. Contra Costa Martinez shoreline Comment
  CAS-BOT-BC260890  Phragmites australis A. D. E. Elmer 1903-7-1 4541 Contra Costa Martinez Comment
  UC2028238  Phyla nodiflora var. nodiflora Barbara Ertter, Tony Morosco 1998-9-18 16429 Contra Costa Lime Ridge Open Space northwest of Mount Diablo. Comment
  CAS-BOT-BC202272  Pickeringia montana var. montana A. D. E. Elmer 1903-5-1 4315 Contra Costa Mount Diablo Comment
  POM16711  Pickeringia montana var. montana A. D. E. Elmer 1903-05 4315 Contra Costa Mount Diablo Comment
  UC692282  Pickeringia montana var. montana Mary L. Bowerman 1933-2-4 1690 Contra Costa flat e Mt. Diablo-North Peak divide; Mount Diablo 822 Comment
  UC1077124  Pilularia americana Herbert L. Mason 1932-3-20 6851 Contra Costa Deer Valley Comment
  JEPS46915  Pinus attenuata W. L. Jepson 1923-4-22 9876 Contra Costa Mt. Diablo Comment
  SBBG336  Pinus attenuata J. M. Tucker 1941-9-26 411 Contra Costa summit of Moraga Ridge 500 Comment
Read comments
Sep 13 2011
  UC692077  Pinus attenuata Mary L. Bowerman 1932-3-20 1121 Contra Costa ne fork, toward top of middle ridge Sycamore Canyon Comment
  UC692170  Pinus attenuata Mary L. Bowerman 1931-3-1 534 Contra Costa s of summit of ridge (e of meridian); Inner Black Hills Comment
  UC440233  Pinus coulteri Mrs. H. P. Bracelin 1931-3-22 179 Contra Costa Nortonville Comment
  UC2028031  Pinus halepensis Barbara Ertter 1997-9-7 15800 Contra Costa North side Mount Diablo, Falls Trail in Donner Canyon. Comment
  SJSU1345  Pinus muricata A. W. Jacobs 1953-4-26 Contra Costa Tilden Regional Park Botanic Garden, E of Berkeley Comment
  UC1061681  Pinus radiata N. Floy Bracelin 1941-12-29 1833 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC691920  Pinus sabiniana Mary L. Bowerman 1931-2-8 516 Contra Costa by roadside around bend from (below) Silver Spring Comment
  JEPS84499  Piperia elegans Jack Stratford 1980-8-6 Contra Costa Huckleberry Trail Huckleberry Botanic Regional Preserve Comment
  UC2028359  Piperia michaelii Barbara Ertter with Tony Morosco 1998-7-11 16367 Contra Costa North base of Mount Diablo, Coulter Pine Trail just east of Mitchell Rock Trail, N-facing slope 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
  UC2061504  Pittosporum undulatum Dean G. Kelch 2016-5-27 16 .135 Contra Costa Miller-Knox Hill. Comment
  CDA40687  Plagiobothrys acanthocarpus Jim Jokerst 1989-3-29 3070 Contra Costa Byron Hot Springs area northeast of Livermore, adjacent to pipeline on terrace south of ephemeral creek. 0 Comment
  CDA31452  Plagiobothrys bracteatus D. G. Kelch 2006-5-2 6 .211 Contra Costa Carquinez Strait; Fernandez Ranch; W. Christie Rd. Comment
  JEPS111848  Plagiobothrys bracteatus D. G. Kelch 2005-3-25 05 .93 Contra Costa Fernandez Ranch Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak 80 Comment
  UC54745  Plagiobothrys bracteatus Jos. Burtt Davy 1900-3-24 6533 Contra Costa Stege Comment
  UC2070495  Plagiobothrys fulvus Barbara Ertter with Kevin Hintsa et al. 2003-4-20 18150 Contra Costa Diablo Foothills Regional Park on west base of Mount Diablo, south end of trail west edge of Castle Rock Recreation Area. Comment
  CDA40675  Plagiobothrys humistratus Jim Jokerst 1989-3-28 3060 Contra Costa Northwest of junction of Byron Hot Springs Road and Armstrong Road. Northeast of Livermore. 0 Comment
  JEPS68111  Plagiobothrys nothofulvus Mrs. E. L. Mossman 1931-4-21 139 Contra Costa vicinity Grizzly Peak; Berkeley Hills 472 Comment
  UC536016  Plagiobothrys nothofulvus Laurence S. Jones 1934-4-8 44 Contra Costa w slope Mt. Diablo (approx 3 mi surface distance from peak) 609 Comment
  UC2070573  Plagiobothrys stipitatus Barbara Ertter with David Gowen and Mike Park 2004-4-13 18348 Contra Costa Black Diamond Mines Regional Park south of Pittsburg, ca 1 km due east of Sidney Flat Headquarters. Comment
  HSC3502  Plagiobothrys stipitatus Greg Bos 1963-4-26 88 Contra Costa Pinole Valley Rd., SE of Pinole 76 Comment
  UC78209  Plagiobothrys stipitatus var. micranthus T. S. Brandegee 1889-5-1 Contra Costa Antioch Comment
  SD211568  Plagiobothrys stipitatus var. micranthus Barbara Ertter, Jim Jokerst and Dave Magney 1989-4-5 8126 Contra Costa Alkalai sink West and adjacent to Clifton Court Forebay, circa 15 airmiles Southwest of Stockton Comment
  UC1301093  Plagiobothrys stipitatus var. stipitatus Helen K. Sharsmith 1963-4-7 5296 Contra Costa near Byron; San Francisco Bay Region 7 Comment
  UC1618197  Plagiobothrys stipitatus var. stipitatus Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8120 Contra Costa ca. 15 air mi. s.w. Stockton (w. & adjacent to Clifton Court Forebay); s.e. Contra Costa Co. Comment
  UC24572  Plagiobothrys stipitatus var. stipitatus F. T. Bioletti 1892-1 Contra Costa Byron Comment
  UC573066  Plagiobothrys stipitatus var. stipitatus H. L. Mason 1929-3-31 5145 Contra Costa Briones Valley Comment
  UC78090  Plagiobothrys tenellus Katharine Curran April 1885 Contra Costa Antioch Comment
  UC1618201  Plagiobothrys trachycarpus Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8117 Contra Costa ca. 15 air mi. s.w. Stockton (w. & adjacent to Clifton Court Forebay); s.e. Contra Costa Co. Comment
  UC191656  Plagiobothrys trachycarpus E. L. Greene 1888-3-28 Contra Costa Byron Springs Comment
  CHSC117388  Plagiobothrys trachycarpus Barbara Ertter; Richard K. Brummitt 1998-5-13 16143 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, depression in road from Somersville Road to south leg of Loughler Loop Trail. Comment
  RSA0029671  Plagiobothrys trachycarpus Barbara Ertter, R. K. Brummitt 1998-5-13 16143 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, depression in road from Somersville Road to south leg of Loughler Loop Trail. Comment
  RSA523620  Plantago bigelovii subsp. bigelovii S. Galen Smith, R. C. Bacigalupi 1957-4-28 2851 Contra Costa 1 mile S of Byron. Comment
  CAS-BOT-BC6475  Plantago californica M. K. Curran 1883-1-1 s.n. Contra Costa Antioch Comment
  JEPS15290  Plantago elongata Rimo Bacigalupi with G. T. Robbins 1956-3-26 5529 Contra Costa about 2.5 mi s Byron (just s of Southern Pacific Railroad crossing on road to Bethany, bottomlands near head of Italian Slough) 6 Comment
  JEPS24312  Plantago elongata S. G. Smith 1957-4-28 2851 Contra Costa 1 mi s Byron Comment
  UC28002  Plantago elongata J. Burtt Davy 1900-3-24 6522 Contra Costa near Stege Comment
  UC924236  Plantago elongata H. S. Reed 1939-4-1 217 Contra Costa n of Richmond (on edge of San Pablo Bay); San Pablo Bay Comment
  POM61262  Plantago erecta C. F. Baker 1903-4-25 2803 Contra Costa Antioch. Comment
  POM300989  Plantago erecta Mary L. Bowerman 1933-4-15 1848 Contra Costa Canyon S of Arroyo del Cerro Comment
  CDA34009  Plantago lanceolata D. G. Kelch 2011-3-31 11 .081 Contra Costa Carquinez Region; Richmond; Hilltop Lake Park. Comment
  JEPS87216  Plantago major Lauramay T. Dempster 1991-6-15 Contra Costa Orinda; 15 El Toyonal Comment
  JEPS22091  Plantago maritima var. juncoides G. Thomas Robbins 1958-7-19 3903 Contra Costa about 0.75 mi s Pt. San Pablo, Potrero San Pablo, Richmond; San Francisco Bay, Pt. Orient Comment
  UC28020  Plantago maritima var. juncoides W. H. Brewer 1862-4-25 997 Contra Costa Martinez Comment
  SJSU7798  Plantago subnuda G. A. Samuelson 1955-5-22 Contra Costa McAvoy Boat Harbor, McAvoy Comment
  UC1328152  Platystemon californicus Olive Dyer April 1938 424 Contra Costa San Pablo Ridge Wildcat Canyon (just over on Orinda side); , Wildcat Canyon Comment
  UC855266  Platystemon californicus Lewis S. Rose 1941-3-27 41065 Contra Costa hills 2 mi w Byron 60 Comment
  JEPS100158  Plectritis brachystemon G. Smick 2003-4-3 GAS 119 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CHSC24920  Plectritis ciliosa M. A. Callahan 1976-4-14 13 Contra Costa On west slope ca. 135 m. e of house at 1976 Mohawk Dr. Pleasant Hill. 140 Comment
  JEPS4797  Plectritis ciliosa subsp. ciliosa W. L. Jepson 1922-5-23 9665 Contra Costa Mount Diablo Comment
  JEPS18277  Plectritis ciliosa subsp. ciliosa Peter H. Raven with Mason, Stone, Ornduff, Kuijt 1957-4-11 10619 Contra Costa 2.4 mi s of Curry Creek (Recreation Ground on road to Livermore) Comment
  JEPS14517  Plectritis macrocera L. T. Dempster 1956-5-26 1002 Contra Costa above Overhill Court (Orinda); Orinda Comment
  UC65024  Plectritis macrocera Miss Carlotta Case July, 1904 Contra Costa Muir Station Comment
  POM59719  Plectritis macrocera C. F. Baker 1903-4-28 2813 Contra Costa Mitchell's Canyon, Mt. Diablo. Comment
  UC2027993  Plectritis macrocera Barbara Ertter with Tony Morosco 1998-4-12 16025 Contra Costa Connector trail on north side of Mount Olympia, north side of Mount Diablo. Comment
  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
  UCD90158  Pleuropogon californicus Peter Kamb; Francia Chisaki, Galem Smith 1951-4-14 1978 Contra Costa 0.2 miles south of junction of Highways 4 and 21, 7 miles north of Walnut Creek. Comment
  OBI22108  Pleuropogon californicus Peter H. Raven, G. Thomas Robbins 1956-4-28 9042 Contra Costa Just E of jctn to Martinez along State hwy 4 Comment
  CAS-BOT-BC260948  Pleuropogon californicus var. californicus Peter H. Raven; G. Thomas Robbins 1956-4-28 9042 Contra Costa Just east of junction to Martinez along State Highway 4 Comment
  JEPS78623  Pluchea odorata var. odorata Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3284 Contra Costa Browns Island, Botany Cove Comment
  JEPS100035  Poa annua S. O'Neil 2003-5-8 SEO 28 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  SEINET10593459  Poa annua Alan A. Beetle 1942-3-22 Beetle 2926 Contra Costa Brooks Island, San Francisco Bay, near Richmond. Comment
  CAS-BOT-BC246646  Poa howellii Mary L. Bowerman 1933-4-22 1897 Contra Costa Mount Diablo. Inner Black Hills just west of Cave Point Comment
  POM205468  Poa howellii Jos Burtt Davy 1899-4-19 7853 Contra Costa Las Trampas Creek Comment
  POM224442  Poa infirma Alice Eastwood, J. T. Howell 1936-4-19 s.n. Contra Costa Antioch Comment
  POM300628  Poa secunda Mary L. Bowerman 1933-5-3 1985 Contra Costa Alder Canyon 732 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
  UC1037102  Poa secunda subsp. secunda Leo Whitney 1935-4-21 3058 Contra Costa 1 mi nw Corral Hollow Comment
  UC691169  Poa secunda subsp. secunda Mary L. Bowerman 1933-6-3 2237 Contra Costa summit Meridian Peak (Ransom Point trail); Mt Diablo Comment
  UC691181  Poa secunda subsp. secunda Mary L. Bowerman 1932-4-27 1381 Contra Costa s face Oyster Ridge (canyon w of Riggs Canyon); Mt Diablo 335 Comment
  UC691187  Poa secunda subsp. secunda Mary L. Bowerman 1935-4-26 2900 Contra Costa w Indian Ceremonial spring; Mt Diablo 1021 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
  UCD91679  Poa secunda subsp. secunda P. B. Kennedy 1925-4-25 s.n. Contra Costa Road to Sycamore Canyon, Mt. Diablo. Comment
  SEINET7973850  Poa secunda var. secunda J. B. Davy 1899-4-19 7856 Contra Costa Las Trampas Creek Comment
  SEINET5548629  Poaceae J. Hamai 1985-1 s.n. Contra Costa Russell Reserve Comment
  SEINET883324  Poaceae F. W. Gould 1941-1 1304 Contra Costa near San Francisco Bay at Albany. Comment
  JEPS128782  Pogogyne serpylloides Kevin Hintsa 1999-5-25 Contra Costa Mount Diablo State Park, on Meridian Ridge Road a few yards from Deer Flat. Comment
  CHSC67530  Pogogyne zizyphoroides James D. Jokerst 1989-3-28 3065 Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. Comment
  UC1988939  Pogogyne zizyphoroides R. F. Hoover 1941-4-12 4842 Contra Costa 2 mi S of Antioch Comment
  RSA74882  Polygonum arenastrum Elroy Robinson 1935-9-14 s.n. Contra Costa Martinez Comment
  POM181450  Polygonum aviculare I. L. Wiggins 1930-4-18 4612 Contra Costa East end of Jersey Island. 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
  JEPS112032  Polypodium calirhiza D. G. Kelch 2004-3-5 04 .4 Contra Costa Martinez - Rankin Open Space Rankin Park, Martinez 68 Comment
  UC1478301  Polypodium calirhiza Alan R. Smith with Tom Lemieux 1981-11-19 828 Contra Costa n slope of ridge above Devil's Elbow Trail (between rd. and Devil's Pulpit); Mt. Diablo State Park 1066 Comment
  UC2032825  Polypodium calirhiza Doran, Andrew Scott 2012-3-20 695 Contra Costa North end of Brooks Island along ridge overlooking artificial spit, southwest of caretakers residence. Comment
  UC692122  Polypodium calirhiza Mary L. Bowerman 1933-12-2 2478 Contra Costa rocks by Alder Canyon Alder Canyon; Mt. Diablo 533 Comment
  CAS-BOT-BC72043  Polypodium calirhiza Mary L. Bowerman 1935-3-15 2736 Contra Costa Arroyo del Cerro, east fork 262 Comment
  UC1738212 Image available Polypodium calirhiza S. Whitmore 1982-1-1 1388 Contra Costa Contra Costa County: Mt. Diablo: arroyo on S slopes, 1.2 mi N of south gate entry to Mt. Diablo St. Park, along South Gate Road. Comment
  UC50640  Polypogon imberbis Jos. Burtt Davy 6662 Contra Costa Salt-marsh near Martinez Comment
  UC1819024  Polypogon interruptus Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14634 Contra Costa Little Pine Creek at northwest foot of Mt. Diablo, along trail connecting North Gate Road to Castle Rock Road, Diablo Foothills Regional Park; along stream above stable, riparian vegetation. 91 Comment
  CAS-BOT-BC232584  Polypogon monspeliensis Walter Knight; Joanne Dean 1978-8-14 3190 Contra Costa Browns Island Comment
  CHSC60218  Polypogon monspeliensis J. Lund 1980-4-2 Contra Costa 3.0 miles west of the junction of East 10th and Clayton Valley Road in Pottsburg. 0 Comment
  JEPS100034  Polypogon monspeliensis A. Langston 2003-6-6 AL 36 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA484484  Polypogon monspeliensis A. A. Beetle 1941-6-24 s.n. Contra Costa Point Richmond on San Francisco Bay. Comment
  UC50633  Polypogon monspeliensis Jos. Burtt Davy 1897-9-4 4079 Contra Costa Stege 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
  UCD37370  Polypogon monspeliensis Beecher Crampton 1959-9-3 5453 Contra Costa Contra Costa County, 2 miles north of city of Orinda, Bear Creek, East Bay Municipal Utilities District Project. Comment
  CAS-BOT-BC237470  Polypogon viridis Mary L. Bowerman 1936-8-17 3527 Contra Costa Mount Diablo. Sulphur Spring in Pine Canyon 137 Comment
  UC403974  Populus fremontii subsp. fremontii W. L. Jepson 1907-4 Contra Costa near Walnut Creek (San Ramon Valley); San Ramon Valley Comment
  NY436345  Potentilla frondosa E. L. Greene 1889-5-12 s.n. Contra Costa Comment
  JEPS23820  Proboscidea lutea G. Thomas Robbins 1959-8-1 4114 Contra Costa roadside berm of frontage road just s Mt. Diablo Blvd. ((about 0.5 mi e of concrete bridge at Charles Hill and about 0.2 mi w of jct. of Hidden Valley Rd.), 2 mi w of Lafayette) 144 Comment
  CAS-BOT-BC202303  Prosopis glandulosa var. torreyana Walter Knight; Irja Knight 1968-9-25 2251 a Contra Costa North entrance Contra Loma Regional Park, west side of road Comment
  UC2027948  Prunus cerasifera Barbara Ertter 1997-9-7 15791 Contra Costa North side Mount Diablo, cabin site on Donner Creek, in persisting orchard. Comment
  JEPS44968  Prunus subcordata W. L. Jepson 1907-4-26 2648 c Contra Costa Mitchell Canyon Mt Diablo Comment
  RSA113975  Prunus subcordata Peter H. Raven, H. L Mason, R. Ornduff 1957-4-11 10626 Contra Costa Curry Canyon, four miles south of the Recreation Ground. Comment
  UC691121  Prunus subcordata Mary L. Bowerman 1933-5-21 2157 Contra Costa S from Curry Canyon ( head of Grape Gully); Mount Diablo Comment
  JEPS112071  Prunus virginiana subsp. demissa A. G. Murdock 2004-5-28 268 Contra Costa Pinole Peak 205 Comment
  CAS-BOT-BC151202  Prunus virginiana var. demissa Mary L. Bowerman 1933-5-21 2148 a Contra Costa Grape Spring (south from Curry Canyon), fifteen feet from surface of water - Mount Diablo Comment
  JEPS75547  Pseudognaphalium californicum P. F. Yorks 1975-7-5 467 Contra Costa ca 1.5 mi s Bear Creek Road (on Hampton Road in Hampton Road Natural Reserve, n of Briones Reservoir) 180 Comment
  UC691824  Pseudognaphalium californicum Mary L. Bowerman 1935-5-30 3089 Contra Costa Eagle Point ridge 320 Comment
  HSC5690  Pseudognaphalium luteoalbum Greg Bos 1963-4-10 71 Contra Costa Richmond, El Cerrito Hills. E and, W slope 76 Comment
  SEINET3875503  Pseudotsuga menziesii Michael R. Tansey 1963-2-15 2 Contra Costa North end of Jewel Lake in Tilden Regional Park, California.; 0 152 Comment
  UC694154  Psilocarphus tenellus Herbert L. Mason 1932-5-4 7056 Contra Costa Laundry Farm Oakland Hills Comment
  CAS-BOT-BC148621  Ptelea crenulata C. F. Baker 1903-4-28 2943 Contra Costa Mitchell's Canyon [canon], Mt. Diablo Comment
  CAS-BOT-BC148622  Ptelea crenulata A. D. E. Elmer 1903-5-1 4327 Contra Costa Mount Diablo Comment
  CAS-BOT-BC148636  Ptelea crenulata W. W. Carruth 1903-5-10 s.n. Contra Costa Mitchell Canyon, Mt. Diablo Comment
  CAS-BOT-BC148643  Ptelea crenulata V. Rattan 1887-5-22 s.n. Contra Costa Alhambra Val. Comment
  JEPS40169  Ptelea crenulata W. L. Jepson 1920-9-6 9082 Contra Costa Mt. Diablo Comment
  JEPS40172  Ptelea crenulata W. L. Jepson 1907-4-27 2648 Contra Costa Mt. Diablo Comment
  SBBG33491  Ptelea crenulata A. D. E. Elmer -May-1903 Contra Costa Mount Diablo Comment
  UC571100  Ptelea crenulata H. L. Mason 1928-4-1 4273 Contra Costa hills n Mount Diablo (canyon back of Pittsburg) Comment
  UC692575  Ptelea crenulata Mary L. Bowerman 1930-6-22 357 Contra Costa Mitchell Canyon; Mount Diablo Comment
  UC85435  Ptelea crenulata Katharine Brandegee 1907-6-16 Contra Costa hills back of Antioch Comment
  CAS-BOT-BC148645  Ptelea crenulata V. Rattan; Dr. Mary Curran 1883-6-1 s.n. Contra Costa Unspecified Comment
  UCD38732  Ptelea crenulata Beecher Crampton 1957-7-9 4273 Contra Costa 2-3 miles northwest Martinez on the road to Crockett. Comment
  UC606766  Pteridium aquilinum var. pubescens Edward Lee 1936-4-19 2016 Contra Costa e slope of island Red Rock; San Francisco Bay Comment
  JEPS112010  Pterostegia drymarioides Dean G. Kelch and Andrew G. Murdock 2003-4-3 DGK 03 .360 Contra Costa Cummings Skyway. Comment
  JEPS112012  Pterostegia drymarioides Dean G. Kelch and Andrew G. Murdock 2004-4-25 DGK 04 .108 Contra Costa Martinez - West: Ozol Rock and Scenic Drive. West Martinez on Scenic Dr. at Road Gate. Comment
  UCD100927  Pterostegia drymarioides P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  RSA0068501  Pterostegia drymarioides Katie Gallagher, Nick Jensen 2014-4-26 173 Contra Costa Las Trampas Regional Wilderness. 365 Comment
  UC2028967  Puccinellia nuttalliana Barbara Ertter with Brad Olson et al. 2000-6-2 17301 Contra Costa Brushy Peak Regional Preserve NE of Livermore, at south base of Brushy Peak. Comment
  CAS-BOT-BC239827  Puccinellia simplex Niall McCarten; V. I. Dains 1986-6-1 03261200 9 Contra Costa (Highline reach 12-15) near Brushy Cr., empties into Clifton Ct. Forebay Comment
  UC2027759  Pyracantha angustifolia Barbara Ertter 1997-1-5 15433 Contra Costa Ygnacio Valley Road crossing Lime Ridge on northwest side of Mount Diablo. Comment
  JEPS112099  Pyracantha crenatoserrata D. G. Kelch 2005-5-13 05 .246 Contra Costa Martinez. South of oil refinery along Railroad tracks in fragment of habitat 28 Comment
  UC2027946  Pyrus communis Barbara Ertter 1997-9-7 15793 Contra Costa North side Mount Diablo, cabin site on Donner Creek, in persisting orchard. Comment
  UC691281  Quercus X eplingii Mary L. Bowerman 1935-11-30 3351 Contra Costa sw of Gibraltar Rock; Mount Diablo, Fossil Ridge Comment
  UC691316  Quercus X morehus Mary L. Bowerman 1931-9-27 1048 Contra Costa ne side North Peak; Mount Diablo Comment
  CAS-BOT-BC45660  Quercus agrifolia Mary L. Bowerman 1930-10-25 495 Contra Costa Near Sloan Road, Mount Diablo Comment
  JEPS37717  Quercus agrifolia W. L. Jepson 1907-4-26 2648 b Contra Costa Mt. Diablo Comment
  UC521668  Quercus agrifolia Joseph Andorfer Ewan 1933-10-15 8027 Contra Costa sw slope Mt. Diablo 1066 Comment
  UCD17437  Quercus agrifolia E. Dean; M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 659 Contra Costa California. Contra Costa County: Mount Diablo State park, along Knobcone Point Road, just east of balancing rock, upslope of road. 548 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
  UCD45130  Quercus agrifolia P. Akers 2002-5-11 s.n. Contra Costa Mt. Diablo Summit Trail at water tank picnic area. Elev: 2865 ft. 873 Comment
  UCD83548  Quercus agrifolia Alison McNally 2009-5-9 s. n. Contra Costa Antioch, southern shore of San Joaquin River, Antioch Dunes National Wildlife Refuge. Comment
  JEPS77011  Quercus chrysolepis Robert M. Lloyd 1963-3-17 2138 Contra Costa on Skyline across from 7090 Skyline Drive (0.5 mi e of intersection of Grizzly Peak Road and Skyline Drive); Skyline Drive, Huckleberry Trail Comment
  RSA476539  Quercus chrysolepis Mark Morris 1929-03 14907 Contra Costa Mt. Diablo. Comment
  SEINET14301648 Image available Quercus chrysolepis Robert A. Norris, John L. Inase 1981-1 4152 Contra Costa Near North Gate Rd., Mt Diablo; on dry SW-facing slope 716 Comment
  UC1135389  Quercus chrysolepis R. W. Lundh 1933-3-13 212 Contra Costa 0.75 mi nw Pinehurst; Concord Quad. 304 Comment
  UC5526  Quercus chrysolepis Frank W. Bancroft 1894-7-10 Contra Costa Top of Mt. Diablo Mt. Diablo Comment
  CAS-BOT-BC86648  Quercus douglasii John Thomas Howell 1926-3-7 1658 Contra Costa Mt. Diablo near toll gate Comment
  JEPS111508  Quercus douglasii D. G. Kelch 2005-5-13 05 .270 Contra Costa Martinez - South Tall hill in South Martinez and North of I-4. Oak Savannah, Disturbed 96 Comment
  JEPS37390  Quercus douglasii W. L. Jepson 1898-10-18 Contra Costa Deer Flat Mt. Diablo Comment
  UC1135462  Quercus douglasii C. M. Belshaw 1936-5-15 2133 Contra Costa Long Valley Mt. Diablo Quad. 228 Comment
  SEINET14301650 Image available Quercus douglasii Unknown Contra Costa Near North Gate Rd., Mt. Diablo Comment
  CAS-BOT-BC86123  Quercus dumosa Mary L. Bowerman 1932-9-17 1584 Contra Costa Mount Diablo. Donner Canyon, west fork: Bank between forks 304 Comment
  UC1135558  Quercus durata N. French 1935-7-25 645 Contra Costa Mt. Diablo Mt. Diablo Quad. 670 Comment
  UC5581  Quercus durata F. W. Bancroft 1894-7-10 Contra Costa half-way up Mt. Diablo Comment
  CHSC83237  Quercus garryana E. Dean; M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 656 Contra Costa Mount Diablo State park, Fossil Ridge, along fire road that begins at the parking lot southeast of Rock City and climbs onto Fossil Ridge in southeasterly direction, ca. 0.1 mile from Rock City, slightly downslope of road. 487 Comment
  UC691287  Quercus garryana Mary L. Bowerman 1935-11-30 3352 Contra Costa between Gibralter Rock and Rock City Road; Mount Diablo Comment
  UCD17418  Quercus garryana E. Dean; M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 654 Contra Costa California. Contra Costa County: Mount Diablo State park, Fossil Ridge, just upslope of South Gate Rd., just west of Gibraltar Rock, southeast of Rock City. 487 Comment
  JEPS99999  Quercus kelloggii S. O'Neil 2003-3-11 SEO 11 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC639150  Quercus kelloggii Annetta Carter 1939-11-18 Contra Costa between Orinda andf Moraga Comment
  UC2028550  Quercus kelloggii Barbara Ertter 1997-9-14 15813 Contra Costa Southwest side of Mount Diablo, Secret Trail at head of Pine Canyon Comment
  UC691278  Quercus lobata Mary L. Bowerman 1930-6-3 224 Contra Costa 1.9 mi from West road (= North Rd.) entrance; Mount Diablo 167 Comment
  UC691310  Quercus wislizeni Mary L. Bowerman 1931-5-19 868 Contra Costa Donner Canyon trail Mount Diablo 274 Comment
  UCD17415  Quercus wislizeni E. Dean; with B. Ertter, J. M. Tucker, and K. Chaney 2000-9-10 651 Contra Costa California. Contra Costa County: City of El Sobrante; El Sobrante Ridge, upslope of the terminus of Heavenly Ridge Rd., junction of Heavenly Ridge Trail and Manzanita Trail. 213 Comment
  CAS-BOT-BC362444  Rafinesquia californica Alice Eastwood 1923-5-4 11720 Contra Costa Mt. Diablo Comment
  UC691453  Rafinesquia californica Mary L. Bowerman 1933-4-26 1910 Contra Costa n peak ridge e-se of peak Mount Diablo; n peak ridge e-se of peak of Mount Diablo 609 Comment
  UC691454  Rafinesquia californica Mary L. Bowerman 1932-4-27 1378 Contra Costa canyon w Riggs Canyon; Mount Diablo, s face Oyster Ridge 304 Comment
  RSA132889  Ranunculus aquatilis var. capillaceus Simon Simonian 1954-8-24 1311 a Contra Costa Entersprise Canal, east-west section crossing of McKinley Ave west of McDonough Ave., 2 miles north of Centerville. Main canal. Comment
  CAS-BOT-BC379109  Ranunculus aquatilis var. diffusus A. D. E. Elmer 1903-5-1 4318 Contra Costa Mount Diablo Comment
  SEINET11263164  Ranunculus canus Barbara Ertter, Brad Olson; James R. Shevock 1997-3-19 15505 Contra Costa East of Los Vaqueros Reseroir between Livermore and Brentwood.; 0 Comment
  UC2028119  Ranunculus canus Barbara Ertter with Richard K. Brummitt 1998-5-6 16090 Contra Costa Lower Donner Canyon on north base of Mount Diablo, Hetherington Trail upstream from Donner. Comment
  UC9455  Ranunculus canus var. canus J. Burtt Davy 1895-4-7 925 Contra Costa Antioch Comment
  POM268449  Ranunculus canus var. laetus Lyman Benson 1935-3-16 6272 Contra Costa Mitchell Canyon near Clayton; Mt. Range: Mt. Diablo; Watershed: Walnut Creek. 244 Comment
  POM268694  Ranunculus canus var. laetus Jos. Burtt Davy 1895-4-7 925 Contra Costa Antioch Comment
  SEINET12765193  Ranunculus lobbii Barbara Ertter, David Gowen 2006-3-1 18665 Contra Costa Upper San Leandro Reservoir Watershed (EBMUD) south of Moraga, along SE end of Rocky Ridge Road as it drops to King Cyn Rd.; 0 180 Comment
  UC2043025  Ranunculus lobbii Barbara Ertter with David Gowen 2006-3-1 18665 Contra Costa Upper San Leandro Reservoir Watershed (EBMUD) south Moraga, shallow small pond along SE end of Rocky Ridge Road as it drops to King Canyon Road. Comment
  UC1084395  Ranunculus occidentalis G. Thomas Robbins 1937-4-25 140 Contra Costa hillside near La Vista Comment
  UCSB2072  Ranunculus occidentalis Hand, B. 1960-4-9 Contra Costa 2.9 miles from south gate on Mt. Diablo Road, Mt. Diablo. Comment
  CDA33564  Ranunculus sceleratus Guise, Deviney 2010-5-28 PDR# 1645152 Contra Costa Danville; Mariani Ranch, Finley Rd. near School Street. 0 Comment
  JEPS116905  Ranunculus sceleratus David Gowen 2008-9-4 970 Contra Costa Lime Ridge Open Space. Comment
  JEPS127092  Raphanus raphanistrum Lowell Ahart, Josephine Guardino 2016-4-19 20772 Contra Costa 1.4 miles (air) northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Spring USGS 7.5' Quad. Comment
  UC2029070  Raphanus raphanistrum Barbara Ertter 2000-7-16 17414 Contra Costa Little Pine Creek Road on west side of Mount Diablo. Comment
  JEPS75497  Rhamnus californica P. F. Yorks 1975-5-31 424 Contra Costa ca 1.6 km s Bear Creek Road on Hampton Road in Hamption Natural Reserve (n of Briones Reservoir) 180 Comment
  UC692615  Rhamnus californica Mary L. Bowerman 1930-8-31 451 a Contra Costa e of Sloan place (Sloan Road); Mount Diablo, Inner Black Hills Comment
  UC33654  Rhamnus californica subsp. californica J. Burtt Davy 1891-11-25 Contra Costa Wildcat Canyon Comment
  UC692581  Rhamnus crocea Mary L. Bowerman 1930-6-22 360 Contra Costa Mitchell Canyon Mount Diablo Comment
  UC1121873  Rhamnus ilicifolia R. W. Lundh 1932-8-15 127 Contra Costa 1 mi w Round Valley; Mt. Diablo Quad. 228 Comment
  UC311490  Rhamnus ilicifolia A. D. E. Elmer May 1903 4326 Contra Costa Mount Diablo Comment
  JEPS95251  Rhamnus tomentella Steve Edwards 1995-9-22 Contra Costa Briones Regional Park, Bear Creek Entrance, near junction of trails to archery range and lagoons Comment
  UC420524  Rhamnus tomentella subsp. tomentella Milo S. Baker 1904-6-24 Contra Costa near Mt. Diablo summit; Mt. Diablo, Pine Creek Canyon Comment
  UC692578  Rhus trilobata Mary L. Bowerman 1933-3-25 1776 Contra Costa Diablo Stock Farm (Stone Valley) Canyon; Mount Diablo Comment
  JEPS77004 Image available Ribes amarum Robert M. Lloyd 1963-3-17 2133 Contra Costa 0.5 mi e Grizzly Peak Road (on Skyline Drive (across from 7090 Skyline Drive), Huckleberry trail); Huckleberry trail Comment
  POM181150  Ribes californicum J. T. Howell 1931-2-21 5730 Contra Costa Mt. Diablo. Comment
  UC480600  Ribes californicum Carl Meyer 1928-2-22 285 Contra Costa Mt. Diablo Comment
  UC692214  Ribes californicum Mary L. Bowerman 1930-6-22 366 Contra Costa Mitchell Canyon Mount Diablo Comment
  RSA0025003  Ribes divaricatum var. pubiflorum David Gowen 2007-3-22 666 Contra Costa Huckleberry Preserve at the south end of the parking lot. Comment
  CAS-BOT-BC168921  Ribes malvaceum L. R. Abrams 1921-5-25 8060 Contra Costa Near summit Mt. Diablo Comment
  CAS-BOT-BC168922  Ribes malvaceum Alice Eastwood; John Thomas Howell 1936-4-19 2140 Contra Costa Nortonville Comment
  UC583115  Ribes malvaceum Alice Eastwood, John Thomas Howell 1936-4-19 2140 Contra Costa Nortonville Comment
  RSA0021633  Ribes malvaceum H. de Forest 1930-3-28 s.n. Contra Costa Mt. Diablo, 1 mi. from summit. Comment
  RSA0021634  Ribes malvaceum L. S. Rose 1934-2-1 34011 Contra Costa W. slope Mt. Diablo. 610 Comment
  RSA0021635  Ribes malvaceum J. T. Howell 1926-3-7 1667 Contra Costa Mt. Diablo. Comment
  JEPS111987  Ribes menziesii D. G. Kelch 2005-3-25 05 .80 Contra Costa Fernandez Ranch Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak. 150 Comment
  UC692433  Ribes menziesii Mary L. Bowerman 1935-5-18 3018 Contra Costa nw-facing slope across the road from and a little e parking area; Mt. Diablo 1082 Comment
  UC692434  Ribes menziesii Mary L. Bowerman 1935-6-1 3102 Contra Costa first minor ridge e Mitchell-Pine divide; Mount Diablo 1005 Comment
  CAS-BOT-BC206017  Ribes menziesii John Thomas Howell 1980-4-10 53367 Contra Costa Morgan Territory east of Mt. Diablo Comment
  UC2029137  Ribes menziesii Barbara Ertter with Alan Prather 2003-6-7 18204 Contra Costa Morgan Territory Regional Preserve east of Mount Diablo, west end Stone Corral Trail south of Highland Ridge Trail junction. Comment
  JEPS97012  Ribes sanguineum var. glutinosum R. D. Stone 1981-1-31 334 Contra Costa Huckleberry Trail Oakland Hills, near Alameda-Contra Costa county line (NE of intersection of Skyline Blvd. and Snake Rd.) Comment
  CDA7895  Ricinus communis D. G. Kelch, A. G. Murdock 2004-7-9 4 .316 Contra Costa Carquinez Strait Region; Rodeo Shoreline. Comment
  CAS-BOT-BC362966  Rigiopappus leptocladus M. K. Curran 1884-5-1 36 Contra Costa Antioch Comment
  UC24540  Romanzoffia californica H. N. Bolander 1866-1 6280 Contra Costa Mt. Diablo Comment
  UC1050828  Romneya coulteri N. Floy Bracelin 1941-6-1 1344 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CDA25732  Romulea rosea D. G. Kelch, D. A. Weinstein 2008-3-3 8 .025 Contra Costa East Bay.; Richmond. Wildcat Canyon Park. Alvarado Unit (W end). Comment
  CAS-BOT-BC75017  Rorippa palustris Walter Knight; Rolf Bensler; Brian Atwater; J. Dean; Bryan Mortensen 1979-4-13 3363 Contra Costa Browns Island. Crooked Slough. Comment
  JEPS127093  Rorippa palustris var. occidentalis Lowell Ahart, Josephine Guardino 2016-4-19 20771 Contra Costa 1.4 miles (air) northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Spring USGS 7.5' Quad. Comment
  CAS-BOT-BC147410  Rosa californica John Thomas Howell; Gordon H. True 1972-6-29 48930 Contra Costa Byron Hot Springs southeast of Byron Comment
  SEINET10543521  Rosa californica Walter H. Lewis, Barbara J. Ertter 2005-2-8 Lewis 15910 Contra Costa Marsh Creek Rd at Power Line Crossover, north foot of Mt. Diablo by Marsh Creek; large colony along creek, open live oak woods. Comment
  JEPS45672  Rosa gymnocarpa W. L. Jepson 1924-12-6 10669 Contra Costa Pinehurst San Leandro Creek Comment
  CAS-BOT-BC147207  Rubus parviflorus Mary L. Bowerman 1933-5-19 2140 Contra Costa Below Morgan Sulphur Spring 335 Comment
  CAS-BOT-BC156577  Rubus ulmifolius Walter Knight; Joanne Dean 1978-8-14 3164 Contra Costa Browns Island Comment
  JEPS66120  Rubus ulmifolius var. inermis Pat Watters 1971-6-9 Contra Costa vacant lot at Ferry and Green Streets Martinez Comment
  UC2032842  Rubus ursinus Doran, Andrew Scott 2012-3-20 713 Contra Costa North east side of Brooks Island Comment
  SEINET11918854  Rubus vitifolius M. T. Doutt 1930-9-9 93 Contra Costa Marsh Creek Comment
  JEPS112015  Rumex acetosella Dean G. Kelch and Andrew G. Murdock 2004-3-19 AGM 225 Contra Costa Luzon. Sycamore Ave. just east of Rodeo/Hercules where train crosses Hwy 4 (Luzon). Comment
  UC1594200  Rumex acetosella Jerry Powell 1992-4-7 1635 Contra Costa Richmond Field Station Comment
  CAS-BOT-BC421866  Rumex acetosella Mary L. Bowerman 1935-5-18 3016 Contra Costa Mount Diablo. Road above Indian Ceremonial Spring: Roadbank at hairpin turn. Comment
  POM300578  Rumex acetosella Mary L. Bowerman 1935-5-18 3016 Contra Costa Road above Indian Ceremonial Spring, roadbank at hairpin turn Comment
  UC692208  Rumex conglomeratus Mary L. Bowerman 1935-5-30 3083 Contra Costa Donner Canyon stream Mount Diablo 152 Comment
  CAS-BOT-BC421736  Rumex conglomeratus Walter Knight 1979-6-15 3379 Contra Costa Botany Cove, Browns Island. Comment
  CAS-BOT-BC433479  Rumex fueginus Walter Knight; Irja Knight 1980-8-26 3804 Contra Costa At Hercules Comment
  JEPS112030  Rumex obtusifolius Dean G. Kelch and Andrew G. Murdock 2005-4-24 DGK 05 .177 Contra Costa Franklin Canyon, Contra Costa County, CA. Collier Hill. West Carbon. Comment
  JEPS25160  Rumex pulcher G. Thomas Robbins with John Weiler 1959-5-23 4032 Contra Costa about 0.5 mi e Pt. San Pablo (overlooking San Pablo Bay); Richmond 7 Comment
  POM118953  Ruppia cirrhosa Edward Palmer 2673 Contra Costa Byron Hot Springs. Comment
  UC2028181  Sagina decumbens subsp. occidentalis Barbara Ertter 1998-5-3 16037 Contra Costa Above SW fork of Pine Creek at southwest base of Mount Diablo. Comment
  POM164904  Salicornia virginica Katherine Brandegee s.n. Contra Costa Byron Hot Springs. Comment
  UC768753  Salicornia virginica R. F. Hoover 1937-8-31 2706 Contra Costa Byron Hot Springs Comment
  UC69366  Salix Wm. W. Mott 1905-1-6 Contra Costa near Berkeley (n.e. corner of San Pablo Ave. & McAvoy Lane, opposite 7 Mile House) Comment
  CAS-BOT-BC129918  Salix bonplandiana Mary L. Bowerman 1933-4-15 1854 Contra Costa Mount Diablo - canyon south of Arroyo del Cerro Comment
  CAS-BOT-BC129919  Salix bonplandiana Mary L. Bowerman 1933-5-10 2067 Contra Costa Mount Diablo - spring on ridge below Indian Ceremonial Spring 975 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
  CDA9512  Salix gooddingii D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .239 Contra Costa CA Delta; Along Clifton Court Near Clifton Court Forebay. Comment
  CDA15248  Salix laevigata G. F. Hrusa, D. Crowe 1998-5-8 14379 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Comment
  CDA34023  Salix laevigata D. G. Kelch 2011-3-31 11 .079 Contra Costa Carquinez Region; Richmond; Hilltop Lake Park. Comment
  UC692053  Salix laevigata Mary L. Bowerman 1935-10-26 3348 Contra Costa creek bottom at road junction Mt. Diablo 640 Comment
  UC406991  Salix laevigata var. congesta Ira L. Wiggins 1930-4-18 4601 Contra Costa levee locks Jersey Isl. Comment
  CDA23063  Salix lasiolepis D. G. Kelch, D. A. Weinstein 2008-4-25 8 .087 Contra Costa Alvarado Park (west end of Wildcat Canyon Park) on north-facing hillside above Hindu temple in mixed scrub/grassland. Comment
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Jan 7 2016
  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
  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
  POM300607  Salix lasiolepis Mary L. Bowerman 1933-3-25 1777 Contra Costa Diablo Stock Farm (Stone Valley) Canyon. Mt. Diablo. 274 Comment
  CAS-BOT-BC129553  Salix lasiolepis var. lasiolepis Walter Knight 1965-3-1 899 Contra Costa Antioch dunes, by water's edge - north side of dunes Comment
  CAS-BOT-BC129555  Salix lasiolepis var. lasiolepis Mary L. Bowerman 1932-8-27 1519 Contra Costa Spring south of Turtle Rock (by a large group of willows) - Mount Diablo Comment
  CAS-BOT-BC129596  Salix lasiolepis var. lasiolepis Mary L. Bowerman 1933-3-25 1777 Contra Costa Emmons Canyon, back of Diablo Stock Farm, Stone Valley - Mount Diablo 274 Comment
  JEPS95226  Salix scouleriana Stephen W. Edwards 1995-10-20 Contra Costa Round Top, W flank Robert Sibley Volcanic Regional Preserve Comment
  SBBG29850  Salvia columbariae L. S. Rose 1935-5-16 Contra Costa Mt Diablo Comment
  UC691722  Salvia columbariae Mary L. Bowerman 1933-5-2 1942 Contra Costa below Pioneer Camp, Mount Diablo; Mount Diablo 762 Comment
  UCD102380  Salvia columbariae Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 1050 Comment
  JEPS108627  Salvia columbariae R. Raiche 1981-8-3 10068 Contra Costa S slope of saddle area, Mount Diablo 822 Comment
  JEPS120273  Salvia leucophylla Barbara Ertter with David Gowen 2012-6-9 21026 Contra Costa southeast of junction of Big Springs Trail and Seaview Trail, southeastern Tilden Park in Berkeley Hills Comment
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Mar 22 2018
  CAS-BOT-BC233288  Salvia mellifera Dr. A. Kellogg; W. G. W. Harford 1868-1-1 757 Contra Costa Diablo Comment
  CAS-BOT-BC233289  Salvia mellifera D. E. Breedlove 1970-4-18 17448 Contra Costa At the north edge of Lafayette above Laurel Drive 243 Comment
  CAS-BOT-BC233291  Salvia mellifera Alice Eastwood 1923-5-4 11726 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC233292  Salvia mellifera Alice Eastwood 1915-6-21 4736 Contra Costa San Leandro Comment
  HSC101955  Salvia mellifera Nikolaus Gillen, Michlle Bihler 2014-3-20 7 Contra Costa Mount Diablo State Park. Back Creek Trail. 340 Comment
  UC25729  Salvia mellifera Harley P. Chandler 1901-4-5 976 Contra Costa Mt. Diablo Comment
  UC25730  Salvia mellifera H. N. Bolander Apr 1866 6317 Contra Costa Mount Diablo Comment
  UC691477  Salvia mellifera Mary L. Bowerman 1932-2-28 1096 Contra Costa n of junction of Curry Canyon and trail to Cave Point; Mount Diablo 533 Comment
  UCD125593  Salvia mellifera P. B. Kennedy 1925-4-26 s.n. Contra Costa Mt. Diablo. Road to Sycamore Canon. Comment
  UC2027930  Salvia spathacea Barbara Ertter with Dorothy Frantz 2001-5-10 17641 Contra Costa Diablo Foothills Regional Park, Pine Canyon a few hundred yards above check dam. Comment
  CAS-BOT-BC238633  Sambucus nigra subsp. caerulea Mary L. Bowerman 1930-8-31 452 a Contra Costa Mount Diablo. Sloan Road, Curry Canyon (east of the Sloan Place) Comment
  UC1178021  Samolus parviflorus Herbert L. Mason 1955-7-14 14634 Contra Costa 1/2 mi e of Antioch Bridge Comment
  SEINET13945126 Image available Sanicula bipinnata Lewis S. Rose 1934-1 34063 Contra Costa 3 mi. E. of Clayton Comment
  UCSB39463  Sanicula bipinnata 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
  CDA38533  Sanicula bipinnatifida D. G. Kelch 2005-5-6 5 .227 Contra Costa Carquinez Strait Region; Franklin Canyon. East of Christie Road. South of Route 4. Comment
  UC1561208  Sanicula bipinnatifida Barbara Ertter with John Little 1989-4-2 8108 Contra Costa El Cerrito, at s end of Hillside Park Hillside Park; El Cerrito, Hillside Park Comment
  JEPS116942  Sanicula bipinnatifida David Gowen 2008-4-17 865 Contra Costa Los Vaqueros Watershed, just east of the boundary with Morgan Territory Regional Park, on disturbed flat area near building. Comment
  UC1795705  Sanicula bipinnatifida Barbara Ertter, Dale Sanders, Dan Norris 1994-3-26 12335 Contra Costa Peyton Hill east of I-680 east of Martinez, south of Waterfront Road 30 Comment
  UC2028102  Sanicula bipinnatifida Barbara Ertter with Tony Morosco 1998-4-12 15981 Contra Costa Base of Mount Olympia on north side of Mount Diablo. Comment
  CDA38526  Sanicula crassicaulis D. G. Kelch 2003-4-3 3 .367 Contra Costa Carquinez Strait Region; Cummings Skyway. Comment
  RSA0033930  Sanicula crassicaulis Barbara Ertter, Richard K. Brummitt 1998-5-6 16087 Contra Costa Lower Donner Canyon Road on north base of Mount Diablo, ca. 1/2 miles south of Donner cabin site. 304 Comment
  UC1555367  Sanicula crassicaulis Jerry Powell 1988-4-8 1527 Contra Costa west Richmond, Point Molate Point Molate; Richmond, Point Molate Comment
  UC566856  Sanicula crassicaulis H. L. Mason 1928-4-13 4305 Contra Costa Richmond Waterfront Comment
  UC1006707  Sanicula saxatilis C. Ritchie Bell 1953-4-1 1408 Contra Costa Mount Diablo, North Peak Mount Diablo; , North Peak Comment
  JEPS98659  Sanicula tuberosa O. Gomez, L. Schulties and P. Vargas 1996-5-29 43 PV96 Contra Costa trail between Mt. Diablo Peak and North Peak Mt. Diablo State Park Comment
  UC2027802  Sanicula tuberosa Barbara Ertter, Holly Forbes 1997-4-20 15557 Contra Costa North side of Mount Diablo, north end of Eagle Peak Ridge on Mitchell Rock Trail between Mitchell Rock and Twin Peaks. Comment
  UC2028179  Sanicula tuberosa Barbara Ertter 1998-5-3 16039 Contra Costa SW fork of Pine Creek between Pine Ridge and Wall Point Ridge, southwest base of Mount Diablo. Comment
  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
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Jan 7 2016
  JEPS100129  Scandix pecten-veneris G. Smick 2003-3-27 GAS 110 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC21365  Scandix pecten-veneris Jos. Burtt Davy 1901-4-21 6928 Contra Costa Wildcat Canyon Comment
  UC1618278  Schoenoplectus acutus var. occidentalis Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, and Amy Hiss 1991-8-18 10708 Contra Costa opposite Pittsburg Marina (near w end of island, n of Pittsburg, near confluence of Sacramento and San Joaquin rivers); Browns Island Comment
  UC2070487  Schoenoplectus acutus var. occidentalis Barbara Ertter 2002-11-11 18077 Contra Costa Round Valley Regional Preserve east of Mount Diablo. Comment
  CAS-BOT-BC111465  Schoenoplectus californicus Walter Knight; Joanne Dean 1978-8-14 3189 Contra Costa Browns Island Comment
  UC692193  Scirpus acutus var. occidentalis Mary L. Bowerman 1938-9-17 3715 Contra Costa by the rivulet and in the marsh Big Spring Mount Diablo, Big Spring 731 Comment
  CDA15267  Scirpus americanus G. F. Hrusa, D. Crowe 1998-5-8 14398 Contra Costa Sacramento Delta; E end of Dow Chemical property in Pittsburg. Comment
  CDA23594  Scirpus microcarpus D. G. Kelch 2007-9-8 7 .58 Contra Costa Carquinez Strait; Pinole Valley Park. Comment
  UC692194  Scirpus microcarpus Mary L. Bowerman 1942-10-4 3851 Contra Costa Mount Diablo Mount Diablo (Russelman Park Road) 243 Comment
  SEINET3914709  Scirpus olneyi K. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4978 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough. SE portion of Bethel Slough.; 0 610 Comment
  CAS-BOT-BC240009  Scribneria bolanderi John Thomas Howell 1953-3-15 28924 Contra Costa Rock City, Mt. Diablo Comment
  JEPS116696  Scribneria bolanderi David Gowen 2006-5-17 579 Contra Costa Mount Diablo; Ridge east and above Donner Canyon. Comment
  UC2070589  Scrophularia californica Barbara Ertter 2003-3-28 18124 Contra Costa Round Valley Regional Preserve. Round Valley Creek at north end of Round Valley. Comment
  JEPS100143  Scrophularia californica subsp. californica G. Smick 2003-4-3 GAS 122 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS23819  Scrophularia californica subsp. californica G. Thomas Robbins with John Weiler 1959-5-23 4025 Contra Costa w shore of Brooks Isl; San Francisco Bay, Richmond Comment
  UC615114  Scutellaria tuberosa Beryl O. Schreiber 1932-5-15 276 Contra Costa Mount Diablo Comment
  UC2029001  Scutellaria tuberosa Barbara Ertter 2000-3-30 16920 Contra Costa North side of Mount Diablo, in chaparral near base of Back Canyon Trail. Comment
  CAS-BOT-BC363288  Senecio aronicoides L. R. Abrams 1921-5-25 8033 Contra Costa Summit, Mt. Diablo Comment
  CAS-BOT-BC363289  Senecio aronicoides Alice Eastwood 1915-5-30 4535 Contra Costa Mt. Diablo 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
  UC1818978  Senecio sylvaticus Barbara Ertter, Gary Schoolcraft 1996-4-7 14567 Contra Costa Point San Pablo in west Richmond, crest of road to yacht harbor, coastal grassland on ridge southwest-facing slope. Comment
  UC2032832  Senecio sylvaticus Doran, Andrew Scott 2012-3-20 702 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  UC691362  Senecio sylvaticus Mary L. Bowerman 1933-5-25 2180 Contra Costa w end s face Oyster Ridge (Mount Diablo); , , w end of s face, in burned chapa 396 Comment
  UC335828  Senecio triangularis unknown Contra Costa near Mt. Diablo; near Mt. Diablo Comment
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Feb 11 2013
  UC2032900  Senecio vulgaris Doran, Andrew Scott 2012-3-20 709 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  CAS-BOT-BC364552  Senecio vulgaris Alice Eastwood 1923-5-4 11725 Contra Costa Mt. Diablo Comment
  POM181456  Senecio vulgaris Ira L. Higgins 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
  SBBG363  Sequoia sempervirens J. M. Tucker 1946-3-14 1377 Contra Costa ca. 200 yds S of summit of Redwood Peak Comment
  CHSC99212  Sesuvium verrucosum John Dittes 2006-10-26 1411 Contra Costa San Joaquin Valley (foothills near nw edge); ~2.0 air-mile 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
  UC1614106  Sherardia arvensis Charles M. Belshaw 1935-6-24 789 Contra Costa ca. 1/2 mi. e. Grizzly Peak (Bald Peak); Bald Peak Comment
  UC18907  Sidalcea malviflora subsp. laciniata State Survey 1862-4-30 1002 Contra Costa Walnut Creek Comment
  UC1795679  Sidalcea malviflora subsp. malviflora Barbara Ertter, Gary Schoolcraft 1996-4-7 14568 Contra Costa Point San Pablo in west Richmond, crest of road to yacht harbor, coastal grassland on ridge southwest-facing slope. Comment
  JEPS111786  Silene gallica D. G. Kelch 2004-5-7 04 .188 Contra Costa Ca ada del Cierbo Ca ada del Cierbo 40 Comment
  JEPS99539  Silene gallica Mary L. Bowerman 1976-6-24 Contra Costa Mount Diablo, Fire trail from crest of Inner Black Hills to Sycamore Creek. Comment
  UC1948957  Silene gallica William J. Ferlatte, L. Maynard Moe 1970-4-27 1254 Contra Costa San Francisco Bay: Red Rock Island Comment
  CDA28920  Silybum marianum D. G. Kelch, Troy MacGregor 2009-5-24 9 .297 Contra Costa Carquinez Strait; Carquinez Loop Trail S of Ozol, S-SW of Martinez, nr Wolcott Ln . Comment
  CHSC21619  Sinapis arvensis Willis Ball 1974-4-21 427 Contra Costa Contra Loma Regional Park. In island in center of main parking lot at s end of lake. 36 Comment
  CHSC23876  Sinapis arvensis Willis Ball 1975-2-23 445 Contra Costa Contra Loma Regional Park. In area #1. Ca. 10 yds s of lake ca. 50 yds. w of restroom facilities at s end of lake. 33 Comment
  POM300602  Sinapis arvensis Mary L. Bowerman 1938-5-25 3634 Contra Costa North Road 2 miles from North Gate. 183 Comment
  UC2028577  Sinapis arvensis Barbara Ertter, Holly Forbes 1997-4-20 15548 Contra Costa North base of Mount Diablo, trail to Back Creek from Mitchell Canyon trailhead. Comment
  OBI70547  Sisymbrium orientale D. G. Kelch 2008-3-30 8 .027 Contra Costa Carquinez Strait: Crockets under Zampa (Carquinez) bridge 14 Comment
  SEINET4061707  Sisyrinchium bellum M. W. Garcia 1960-1 60030 Contra Costa Collected on back of Tilden Park. 60 Comment
  UC905257  Smilacina stellata J. A. Rattenbury 1948-3-8 94 Contra Costa 1/2 mi e Oakland Tunnel (n-facing slope on s side of hwy above creek) 213 Comment
  UC2028094  Solanum americanum Barbara Ertter, Chris Thayer 1996-10-25 15384 Contra Costa West side of Mount Diablo, North Gate Road near ranches. Comment
  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
  CDA20181  Solanum elaeagnifolium A. Niang 2003-7-9 PDR 1406328 Contra Costa San Francisco Bay Area; Brentwood. 0 Comment
  CAS-BOT-BC157453  Solanum umbelliferum A. Eastwood 1915-5-30 4541 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC157455  Solanum umbelliferum J. T. Howell 1933-5-14 11291 Contra Costa Hills east of St. Mary's College Comment
  CHSC24836  Solanum umbelliferum M. A. Callahan 1976-4-14 16 Contra Costa 40 m ene of house at 1976 Mohawk Dr. Pleasant Hill. 106 Comment
  NY820647  Solanum umbelliferum A. A. Heller 1908-4-16 8889 Contra Costa Sand hills east of Antioch 23 Comment
  UC1125028  Solanum umbelliferum R. C. Wilson 1935-3-13 126 Contra Costa 2 mi w of Cave Point 502 Comment
  UC2042781  Solanum umbelliferum Barbara Ertter with Travis Columbus 1990-6-10 9109 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill, on Spengler Trail NE of Briones Peak Comment
  UC63939  Solanum umbelliferum Earle Mulliken 1903-5-10 51 Contra Costa Berkeley Hills Comment
  UCD127020  Solanum umbelliferum Laurence S. Jones 1934-4-8 s.n. Contra Costa Mount Diablo. 609 Comment
  JEPS75542  Solidago velutina subsp. californica P. F. Yorks 1975-9-6 495 Contra Costa on Hampton Road ca 1.4 km s Bear Creek Road beyond entrance gate to Hampton Road Nature Reserve (n of Briones Reservoir); beyond entrance gat to Hampton Road Nature Reserve, Briones 170 Comment
  UC1795730  Soliva sessilis Barbara Ertter, Mary Bowerman et al. 1995-5-7 14041 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
  JEPS127094  Sonchus asper subsp. asper Lowell Ahart, Josephine Guardino 2016-4-19 20769 Contra Costa 1.4 miles (air) northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Spring USGS 7.5' Quad. Comment
  CDA15245  Sonchus oleraceus G. F. Hrusa, D. Crowe 1998-5-8 14376 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Comment
  UC407040  Sonchus oleraceus Ira L. Wiggins 1930-4-18 4608 Contra Costa Jersey Island Comment
  CAS-BOT-BC374741  Sonchus oleraceus Walter Knight 1965-3-1 s.n. Contra Costa Antioch dunes Comment
  UC337971  Sorghum halepense unknown Contra Costa John Muir's yard Martinez Comment
  UC1980318  Sparaxis tricolor Barbara Ertter with C. Shafer, C. Davidson et al. 2011-4-23 20707 Contra Costa Mount Diablo State Park, Curry Point Comment
  CDA9448  Spergularia macrotheca var. longistyla D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .226 Contra Costa Byron Airport. Comment
  UC1584823  Spergularia macrotheca var. macrotheca Jerry Powell 1987-7-14 1499 Contra Costa Point Molate Beach; on sandstone bluff Comment
  CDA24135  Spergularia marina D. G. Kelch 2006-7-14 6 .328 Contra Costa Carquinez Strait; Along Marine Vista Ave immmediately west of Pacheco Slough. East of Martinez. Comment
  UC1818901  Spergularia marina Barbara Ertter, Drew Hansen 1995-3-28 13939 Contra Costa Chevron oil refinery in northwest Richmond off of Castro St. edge of levees thru created bioremediation marsh south of Wildcat Creek. Comment
  UC2070545  Spergularia marina Barbara Ertter 2003-3-28 18123 Contra Costa Round Valley Regional Preserve, north end of Round Valley along Murphy's Meadow trail. Comment
  CHSC116606  Spergularia rubra Lowell Ahart; Josephine Guardino 2016-4-19 20775 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the sides of the dirt roads, 1.8 mile (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
  UC1948952  Spergularia villosa William J. Ferlatte, L. Maynard Moe 1970-4-27 1258 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC1795653  Stachys ajugoides var. rigida Barbara Ertter, Brad Olson 1994-5-7 12756 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  UC606760  Stachys ajugoides var. rigida Edward Lee 1936-4-19 2011 Contra Costa Red Rock, ne slope of island San Francisco Bay Comment
  RSA0068488  Stachys rigida var. quercetorum Katie Gallagher, Nick Jensen 2014-4-26 186 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  CAS-BOT-BC374776  Stebbinsoseris heterocarpa Brandegee No date on label s.n. Contra Costa Antioch Comment
  UC13617  Stellaria nitens Chesnut and Drew 1889-4-15 Contra Costa Martinez Comment
  UC692303  Stellaria nitens Mary L. Bowerman 1932-3-12 1115 Contra Costa Alamo Canyon Mount Diablo (50 ft above stream) 365 Comment
  UC2028153  Stellaria pallida Barbara Ertter 1998-4-4 15958 Contra Costa Shell Ridge Open Space northwest of Mount Diablo. Comment
  RSA0027412  Stenotaphrum secundatum Barbara Ertter, Richard K. Rabeler, Tony Morosco 1997-6-10 15669 Contra Costa Martinez Regional Shoreline, south edge of Carquinez Strait. On path to bridge. Comment
  UC571570  Stephanomeria virgata subsp. pleurocarpa H. K. Sharsmith 1933-9-24 Contra Costa highway w Walnut Creek Comment
  RSA0029779  Stephanomeria virgata subsp. pleurocarpa Barbara Ertter 2000-7-29 17439 Contra Costa Donner Basin on north side of Mount Diablo, opening on lower end of Middle Trail between Meridian Ridge Road and first stream crossing. 366 Comment
  UC2029082  Stephanomeria virgata subsp. pleurocarpa Barbara Ertter 2000-7-29 17439 Contra Costa Donner Basin on north side of Mount Diablo, opening on lower end of Middle Trail between Meridian Ridge Road and first stream crossing. Comment
  UC1950089  Stipa cernua Barbara Ertter 1990-5-19 8998 Contra Costa Layfayette Ridge of Briones Regional Park N of Lafayette; S-facing slope S of Russell Peak Comment
  UC2070623  Stipa lepida Barbara Ertter 2002-5-11 17847 b Contra Costa Southwest base of Mount Diablo, lower end of Summit Trail in Dan Cook Canyon ca. half mile from South Gate Road. Comment
  JEPS127235  Stipa pulchra Lowell Ahart, Josephine Guardino 2016-4-19 20793 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest to Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  UC1292668  Streptanthus albidus subsp. peramoenus A. R. Kruckeberg 1947-5-24 1449 Contra Costa above road 2 mi inside old North Entrance to Mt. Diablo State Park (not tollgate) Comment
  JEPS108223  Streptanthus glandulosus subsp. glandulosus David Gowen 2005-5-6 279 Contra Costa Mt. Diablo State Park. South east end of Prospectors Gap Rd., ca 0.3 mile NW of its junction with Ray Morgan Rd. Small area of serpentine outside of the park boundary. Comment
  CAS-BOT-BC87343  Streptanthus hispidus L. R. Abrams 1921-5-25 8059 Contra Costa Summit Mount Diablo. Comment
  JEPS26993  Streptanthus hispidus W. L. Jepson 1907-4-26 2641 Contra Costa Mt. Diablo Comment
  UC188151  Streptanthus hispidus J. W. Congdon 1896-5-3 Contra Costa summit Mt. Diablo Comment
  UC629716  Streptanthus hispidus H. L. Mason 1938-5-3 11751 Contra Costa trail between Juniper Camp and Deer Flat; Mount Diablo 990 Comment
  UC10898  Streptanthus tortuosus var. orbiculatus McLean 1800-1 Contra Costa Mount Diablo Comment
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Jan 11 2013
  RSA0026147  Stuckenia pectinata Barbara Ertter 1998-6-20 16251 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Gypsy Flat Pond SW of Old Borges Ranch. Also in Joaquin Pond. Comment
  UC2028481  Stuckenia pectinata Barbara Ertter with Chris Thayer 1996-10-25 15371 a Contra Costa Northwest flank of Mount Diablo, Tick Pond at arc of Falcon Road between North Gate Road and Castle Rock Comment
  UC2062677  Stuckenia striata Barbara Ertter 2005-8-15 18624 Contra Costa Antioch/Oakley Regional Shoreline, under south end of Antioch Bridge between Antioch and Oakley. Comment
  JEPS116497  Stylocline gnaphaloides J. Greenhouse with John Game 2008-5-26 5128 Contra Costa Lime Ridge Open Space, Paradise Canyon Trail above subdivision Comment
  CAS-BOT-BC375966  Stylocline gnaphaloides Brandegee No date on label s.n. Contra Costa Antioch Comment
  CAS-BOT-BC422910  Stylomecon heterophylla John Thomas Howell 1933-5-14 11269 Contra Costa Hills east of St. Mary's College Comment
  CAS-BOT-BC422920  Stylomecon heterophylla James McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  JEPS51561  Stylomecon heterophylla W. L. Jepson 1923-6-10 9985 Contra Costa head of Marsh Creek Mt. Diablo; , head of Marsh Creek Comment
  UC692176  Stylomecon heterophylla Mary L. Bowerman 1930-6-14 323 Contra Costa not far below summit Meridian Peak Mount Diablo; , not far below summit Meridian Peak Comment
  CAS-BOT-BC422906  Stylomecon heterophylla W. W. Carruth 1900-5-1 s.n. Contra Costa Moraga Valley Comment
  POM300582  Stylomecon heterophylla Mary L. Bowerman 1932-5-6 1410 Contra Costa Mount Diablo; Mitchell Canyon: West bank by floor of canyon 183 Comment
  SD58497  Suaeda californica John H. Weiler 1961-4-9 6173 Contra Costa On the east side of the road, 3.0 miles south of Byron. Comment
  UC1746042  Suaeda moquinii Annetta M. Carter 1951-5-13 3056 Contra Costa 3.3 mi. S of Byron. Comment
  UC691759  Symphoricarpos mollis Mary L. Bowerman 1930-6-18 352 Contra Costa w side, little below summit Meridian Peak; Mount Diablo Comment
  UC1005951  Symphoricarpos orbiculatus N. Floy Bracelin 1943-3-8 2430 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC2046321  Symphyotrichum lanceolatum var. hesperium Barbara Ertter 2000-10-26 17550 Contra Costa West side Mount Diablo, Little Pine Creek near park boundary, just upstream from Falcon Road creek crossing. Comment
  UC2046323  Symphyotrichum lanceolatum var. hesperium Barbara Ertter 2000-9-2 17520 Contra Costa Sobrante Ridge Preserve in hills southeast of El Sobrante, north of trailhead from Heavenly Ridge entrance. Comment
  CAS-BOT-BC98039  Symphyotrichum lentum L. R. Abrams 1917-9-24 6860 Contra Costa Near Concord Comment
  CDA33070  Symphyotrichum lentum D. G. Kelch 2010-10-5 10 .424 Contra Costa The Delta.; Antioch shoreline. West of Fulton shipyard. Comment
  UCD163492  Symphyotrichum lentum D. Slakey; CNPS Volunteers 2015-9-12 225 Contra Costa Browns Island, northern part of Crooked Slough. 0 Comment
  CAS-BOT-BC98040  Symphyotrichum lentum John Thomas Howell 1978-9-5 53357 Contra Costa Pittsburg Marina Comment
  UC2027883  Symphyotrichum subulatum Barbara Ertter with Chris Thayer 1996-10-25 15368 Contra Costa Northwest flank of Mount Diablo, east end Northgate Trail from North Gate Road to Diablo Foothills Regional Park. Comment
  UC21430  Tauschia hartwegii Edw. L. Greene 1892-6-20 Contra Costa Mt. Diablo Comment
  UC691419  Tauschia hartwegii Mary L. Bowerman 1933-4-26 1936 Contra Costa North Peak Mount Diablo (ridge running se from the peak); , , ridge running se from peak 518 Comment
  CAS-BOT-BC447423  Tellima grandiflora Elsie Zeile 1909-4-18 s.n. Contra Costa Redwood Peak Comment
  UC692143  Thalictrum fendleri var. polycarpum Mary L. Bowerman 1935-6-15 3135 Contra Costa on banks of stream Mount Diablo, Mitchell Canyon 640 Comment
  CDA29193  Thinopyrum elongatum D. G. Kelch 2008-6-15 8 .248 Contra Costa Carquinez Strait; Crockett hills, S of Cummings Skyway, W of Crockett Blvd. Comment
  CAS-BOT-BC88250  Thysanocarpus curvipes Alice Eastwood 1923-5-4 11711 Contra Costa Mount Diablo. Comment
  CAS-BOT-BC88256  Thysanocarpus curvipes Katharine Brandegee 1907-5-1 s.n. Contra Costa Antioch. Comment
  CAS-BOT-BC88259  Thysanocarpus curvipes Robert F. Hoover 1935-3-10 310 Contra Costa Antioch sand dunes. Comment
  CAS-BOT-BC88264  Thysanocarpus curvipes Mary L. Bowerman 1933-4-15 1879 Contra Costa Mount Diablo. Second ridge south of Arroyo del Cerro. Crest of ridge. Comment
  JEPS54181  Thysanocarpus curvipes W. L. Jepson 1891-5-24 5 g Contra Costa Mt. Diablo Comment
  JEPS54205  Thysanocarpus curvipes W. L. Jepson May 22 1891-May 23 1891 5 h Contra Costa Mt. Diablo Comment
  SBBG29915  Thysanocarpus curvipes L. S. Rose 1933-4-17 33096 Contra Costa Antioch Comment
  UC117265  Thysanocarpus curvipes unknown Contra Costa Antioch; Epperson's Comment
  RSA0039372  Thysanocarpus curvipes var. curvipes Harley P. Chandler 1901-4-5 940 Contra Costa Mt. Diablo, Pine Canyon. Comment
  RSA0039373  Thysanocarpus curvipes var. curvipes John Thomas Howell 1934-4-8 11821 Contra Costa Marsh Creek Road SW of Brentwood. Comment
  UC691139  Thysanocarpus laciniatus Mary L. Bowerman 1932-3-27 1138 Contra Costa Mount Diablo , below Mitchell Rock (below Mitchell Rock) Comment
  UC691514  Tonella tenella Mary L. Bowerman 1935-5-18 3023 Contra Costa Mount Diablo; nw-facing slope across the road from, and a little e of, the parking area 1066 Comment
  JEPS100127  Torilis nodosa G. Smick 2003-5-8 GAS 186 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS107101  Tragopogon porrifolius Barbara Ertter 1991-5-12 9812 Contra Costa Point Isabel Regional Shoreline in SW corner of El Cerrito; along old railroad right-of-way between San Francisco Bay and Salicornia marsh. Comment
  UC1619980  Tragopogon porrifolius Barbara Ertter 1991-5-12 9812 Contra Costa s.w. 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, Point Isabel Regional Shoreline Comment
  UC1776772  Tribulus terrestris T. C. Fuller 1961-9-13 6999 Contra Costa Almond orchard, S of hwy 4, 0.1 mi W of Antioch Bridge Rd., 2 mi W of Oakley. Comment
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Sep 1 2011
  UC1795842  Trichostema lanceolatum Barbara Ertter, M. L. Bowerman, L. Schultheis, Kevin Hintsa 1995-10-22 14530 Contra Costa Three Springs Trail on northeast side of Mt. Diablo, south of crest of Marsh Creek Rd., dried roadside pond, clay. Comment
  UCR66560  Trientalis latifolia F. W. Peirson 1926-4-10 6635 Contra Costa Boulevard near San Pablo Reservoir Comment
  UC555621  Trifolium albopurpureum H. L. Mason 1929-3-29 5130 Contra Costa 2 mi above Clyton Rd (Marsh Creek Rd) Comment
  UCD38574  Trifolium albopurpureum Beecher Crampton 1956-5-14 3399 Contra Costa Headwaters of Marsh Creek, southeast of Mt. Diablo. 640 Comment
  UC575674  Trifolium albopurpureum var. albopurpureum Lewis S. Rose 1935-5-16 35174 Contra Costa Mt. Diablo Comment
  UC147749  Trifolium albopurpureum var. dichotomum Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  UC165535  Trifolium albopurpureum var. dichotomum J. Burtt Davy 1895-1 949 Contra Costa Antioch Comment
  UC16604  Trifolium albopurpureum var. olivaceum W. H. Brewer 1862-5-19 1111 Contra Costa n Kirker Pass Comment
  UC631264  Trifolium albopurpureum var. olivaceum Mrs. Brandegee May 1907 Contra Costa Antioch Comment
  UC692243  Trifolium bifidum var. decipiens Mary L. Bowerman 1933-5-21 2155 Contra Costa s Curry Canyon (nera Grape Spring); Mount Diablo Comment
  UC764731  Trifolium bifidum var. decipiens R. F. Hoover 1938-5-4 3344 Contra Costa peak e Tassajero Creek Comment
  UC2070457  Trifolium bifidum var. decipiens Barbara Ertter 2000-5-14 16998 Contra Costa Lower Donner Canyon on north side of Mount Diablo. Comment
  CDA27926  Trifolium ciliolatum D. G. Kelch, A. G. Murdock 2003-4-3 3 .35 Contra Costa Carquinez Strait Region; Cummings Skyway. South of Cummings Skyway and Crockett Boulevard. Comment
  POM203632  Trifolium ciliolatum J. T. Howell 11245 Contra Costa Hills east of St. Marys College. Comment
  UC147172  Trifolium depauperatum var. amplectens J. Burtt Davy Apr 7-8 1895 967 Contra Costa Antioch Comment
  UC165565  Trifolium depauperatum var. amplectens Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  UC692648  Trifolium depauperatum var. amplectens Mary L. Bowerman 1935-4-12 2815 Contra Costa 2 mi from entrance (w rd); Mount Diablo 259 Comment
  UC2028951  Trifolium depauperatum var. amplectens Barbara Ertter 2003-3-28 18121 Contra Costa Round Valley Regional Preserve, Fox Trail ca 1/8 mile west of junction with valley trail. Comment
  UC16570  Trifolium depauperatum var. hydrophilum J. Burtt Davy 1900-3-24 6529 Contra Costa near Santa Fe townsite (Pt. Richmond) Comment
  CDA27934  Trifolium depauperatum var. truncatum D. G. Kelch, A. G. Murdock 2005-5-6 5 .229 Contra Costa Carquinez Strait Region; Franklin Canyon. East of Christie Road. South of Route 4. Comment
  JEPS107067  Trifolium depauperatum var. truncatum Barbara Ertter, Chris Thayer 1995-4-25 13998 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Black Hawk Ridge Rd. on north side Black Hawk Ridge. 548 Comment
  UC2028126  Trifolium depauperatum var. truncatum Barbara Ertter with Richard K. Brummitt 1998-5-6 16081 a Contra Costa Base of Mitchell Rock Trail on north base of Mount Diablo. Comment
  UC2028953  Trifolium depauperatum var. truncatum Barbara Ertter 2003-3-28 18122 Contra Costa Round Valley Regional Preserve, Fox Trail ca 1/8 mile west of junction with valley trail. Comment
  JEPS100102  Trifolium dubium G. Smick 2003-5-8 GAS 178 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS100104  Trifolium dubium G. Smick GAS 108 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CDA4276  Trifolium fragiferum D. G. Kelch, A. G. Murdock 2005-6-24 5 .389 Contra Costa Carquinez Strait Region; Franklin Canyon at McEwen Road. Comment
  JEPS65864  Trifolium fucatum W. L. Jepson 1896-5-29 13720 Contra Costa Wild Cat Creek Berkeley Comment
  UC631617  Trifolium fucatum P. B. Kennedy 1928-4-28 10094 Contra Costa 2 mi from Tunnel (on hwy) Comment
  JEPS100103  Trifolium glomeratum G. Smick 2003-5-8 GAS 177 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS125941  Trifolium glomeratum D. W. Taylor 2001-4-26 17628 Contra Costa Orinda; hill slopes ca 0.3 air miles E of the junction of Bear Creek Road and Camino Pablo Comment
  UC1614108  Trifolium gracilentum Charles M. Belshaw 1935-6-24 791 Contra Costa ca. 1/2 mi. e. Grizzly Peak (Bald Peak); Bald Peak Comment
  UC16548  Trifolium gracilentum Harley P. Chandler 1901-4-5 957 Contra Costa Mount Diablo Comment
  UC692689  Trifolium gracilentum Mary L. Bowerman 1933-5-4 1996 Contra Costa e end Rock City Ridge (=Fossil Ridge) (roadbank); Mount Diablo Comment
  UC2070478  Trifolium gracilentum Barbara Ertter 2000-5-14 16999 Contra Costa Lower Donner Canyon on north side of Mount Diablo. 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
  UC555606  Trifolium macraei H. L. Mason 1928-4-13 4304 Contra Costa Richmond waterfront Comment
  UC16656  Trifolium monanthum var. monanthum Maclean 1875-7-5 Contra Costa Mt. Diablo Comment
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Feb 14 2013
  UC165547  Trifolium oliganthum Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  UC692645  Trifolium oliganthum Mary L. Bowerman 1932-3-27 1136 Contra Costa below Mitchell Rock; Mount Diablo Comment
  UC2029052  Trifolium oliganthum Barbara Ertter 2000-3-30 16904 Contra Costa North base of Mount Diablo, lower Mitchell Canyon ca 1.5 miles from trailhead. Comment
  JEPS102894  Trifolium tomentosum Barbara Ertter 1998-5-3 16063 Contra Costa NW end of connector trail between BBQ Terrace Road and Wall Point Road Mount Diablo State Park 365 Comment
  CAS-BOT-BC26494  Trifolium triflorum M. K. Curran 1883-1-1 s.n. Contra Costa Near Mt. Diablo Comment
  CDA29506  Trifolium variegatum var. major D. G. Kelch, Troy MacGregor 2009-5-1 9 .279 Contra Costa Carquinez Strait; Fernandez Ranch in valley bottom along Christie Rd. Comment
  UC16795  Trifolium variegatum var. melananthum W. L. Jepson 1891-5-24 Contra Costa Mt. Diablo Comment
  CDA28080  Trifolium willdenovii D. G. Kelch, A. G. Murdock 2005-4-24 5 .167 Contra Costa Carquinez Strait Region; Franklin Canyon. Collier Hill. West Carbon. Comment
  UC1197527  Trifolium willdenovii J. P. Tracy 1900-3-24 620 Contra Costa Point Richmond 15 Comment
  UC16730  Trifolium willdenovii J. Burtt Davy 1895-4-7 991 Contra Costa Antioch Comment
  UC1948963  Trifolium willdenovii William J. Ferlatte, L. Maynard Moe 1970-4-27 1261 Contra Costa San Francisco Bay: Red Rock Island Comment
  UCD109847  Trifolium willdenovii W. L. Jepson 1925-4-26 10691 Contra Costa Mt. Diablo. Comment
  RSA91555  Trifolium willdenovii J. T. Howell 1933-5-14 11231 Contra Costa St. Mary's College. Comment
  UCD109510  Trifolium willdenovii A. A. Beetle 1939-4-12 1770 Contra Costa Pinole. Comment
  UCD35901  Trifolium willdenovii Beecher Crampton 1966-4-26 7665 Contra Costa ca. 2.5 miles west of Martinez on the road to Crockett. Comment
  UC16819  Trifolium wormskioldii W. L. Jepson 1891-5-23 Contra Costa Mt. Diablo Comment
  JEPS78612  Triglochin striata Walter Knight, L. R. Heckard and Bert Johnson 1978-9-8 3299 Contra Costa Botany Cove Browns Island, Botany Cove Comment
  UC2028389  Triglochin striata Barbara Ertter with Tony Morosco 1998-7-11 16373 Contra Costa Antioch Marina, in riverside trail marsh Comment
  JEPS21841  Trillium chloropetalum Bryce G. Decker 1958-3-7 1 Contra Costa above 60 Oak Dr. Orinda Comment
  CAS-BOT-BC133382  Trillium ovatum P. Raven 1949-3-26 193 Contra Costa Redwood [Canon] Canyon Comment
  JEPS111766  Triodanis biflora Christopher Thayer 1995-6-5 Contra Costa Pinole Peak 304 Comment
  JEPS99597  Triodanis biflora Mary L. Bowerman 1978-5-14 Contra Costa Mount Diablo, Eagle Peak, mines trail. Comment
  JEPS73687  Triphysaria eriantha subsp. eriantha L. R. Heckard with Wm. Hirano and Ted Niehaus 1968-3-5 1756 Contra Costa along Byron-Bethany road at junction of Holey Road about 3 mi se Byron 7 Comment
  UC70188  Triphysaria eriantha subsp. eriantha J. Burtt Davy May 1898 Contra Costa Danville; Region of Mount Diablo, Danville Comment
  JEPS100142  Triphysaria pusilla G. Smick 2003-3-25 GAS 76 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CDA33658  Triphysaria versicolor subsp. faucibarbata Duarte/ Gomes 2011-4-18 PDR# 1625731 Contra Costa Knightsen 0 Comment
  CDA41897  Triphysaria versicolor subsp. faucibarbata D. G. Kelch 2005-4-15 5 .145 Contra Costa Carquinez Strait Region; Rodeo Creek. EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump). Comment
  JEPS102892  Trisetum canescens Barbara Ertter with Susan D'Alcamo 1998-6-12 16203 Contra Costa upper Curry Canon halfway between Knobcone Point Road and Sheepherder Springs Road Mount Diablo 487 Comment
  UC53698  Trisetum canescens J. Burtt Davy 1900-3-24 6520 Contra Costa Pt. Richmond Comment
  UC1795734  Triteleia hyacinthina Barbara Ertter, Brad Olson 1994-5-7 12750 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  CHSC21624  Triteleia laxa Willis Ball 1975-3-25 505 Contra Costa In area #1. On s side of road leading to main parking lot at s end of lake ca. 35 yds e of parking lot. Contral Costa Regional Park. 38 Comment
  CHSC22959  Triteleia laxa Robert A. Schlising; Et al. 1962-4-7 2144 Contra Costa Along road by Antioch Reservoir. Comment
  JEPS112496  Triteleia laxa D. G. Kelch 2004-5-9 04 .204 Contra Costa Crockett - Upper Edwards Canyon, Crockett, above Crockett Blvd 160 Comment
  CAS-BOT-BC200472  Triticum aestivum Alice Eastwood 1921-4-18 10314 Contra Costa Antioch Comment
  JEPS100033  Triticum aestivum S. O'Neil 2003-5-8 SEO 32 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  SEINET8727865 Image available Tropidocarpum capparideum Robert F. Hoover 1936-1 806 Contra Costa Byron Hot Springs. Comment
  UC691063  Tropidocarpum gracile Mary L. Bowerman 1933-3-18 1750 Contra Costa floor of canyon above Olafson's; Mount Diablo, Curry Canyon Comment
  UC691064  Tropidocarpum gracile Mary L. Bowerman 1931-3-29 614 Contra Costa at foot Cave Point Ridge; Mount Diablo, Riggs Canyon Comment
  UC857585  Tropidocarpum gracile Lewis S. Rose 1940-4-30 40249 Contra Costa open fields five mi e Clayton; Marsh Creek 60 Comment
  JEPS111911  Typha angustifolia Dean G. Kelch and Andrew G. Murdock 2004-5-28 AGM 281 Contra Costa Refugio Valley. Comment
  CAS-BOT-BC91093  Umbellularia californica Mary L. Bowerman 1931-2-8 514 Contra Costa Mount Diablo. Summit. Comment
  CDA24512  Umbellularia californica D. G. Kelch 2007-3-24 7 .082 Contra Costa Carquinez Strait; Ozol; between Port Costa and Martinez, near old brick quarry. Comment
  CHSC22748  Umbellularia californica Robert A. Schlising 1962-2-21 2078 Contra Costa Berkeley-Oakland Hills of westernmost part of county. Comment
  UC588152  Umbellularia californica Annetta Carter 1937-3-20 1224 Contra Costa 2 mi nw of Orinda (Lake Orinda Road); Lake Orinda Road 121 Comment
  SEINET3150246  Uropappus lindleyi T. S. Brandegee sn Contra Costa Antioch Comment
  UC2029095  Urospermum picroides Barbara Ertter 1990-6-18 9133 Contra Costa Tilden Regional Park, along Nimitz hiking/bicycle trail near Inspiration Point Comment
  JEPS111920  Urtica dioica subsp. holosericea Dean G. Kelch and Andrew G. Murdock 2004-5-7 DGK 04 .197 Contra Costa Canada del Cierbo. Comment
  UC521771  Urtica dioica subsp. holosericea Joseph Andorfer Ewan 1933-10-15 8018 Contra Costa sw slope Mount Diablo Mount Diablo Comment
  POM210640  Urtica dioica subsp. holosericea Joseph A. Ewan 1933-10-15 8018 Contra Costa SW slope of Mount Diablo. Comment
  CAS-BOT-BC199244  Vaccinium ovatum John Thomas Howell 1925-9-12 1435 Contra Costa Oakland Hills at head of San Leandro Canyon Comment
  UCSB26353  Vaccinium ovatum Havlik, Neil 1969-3-25 Contra Costa Grizzly Peak, just below the summit 518 Comment
  UC1050826  Verbascum N. Floy Bracelin 1941-6-1 1346 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  RSA29666  Verbena lasiostachys var. lasiostachys Joseph A. Ewan 1936-7-5 9719 Contra Costa Reservoir road, Wildcat Creek. Comment
  CDA9278  Verbena scabra D. G. Kelch 2002-7-15 2 .006 Contra Costa CA Delta; Old San Joaquin River channel, E of Brentwood. San Joaquin County border. 0 Comment
  UC407386  Veronica peregrina subsp. xalapensis Ira L. Wiggins 1930-4-17 4581 Contra Costa 1/4 mi s of Byron Comment
  CHS